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cw1200: add driver for the ST-E CW1100 & CW1200 WLAN chipsets
Signed-off-by: Solomon Peachy <pizza@shaftnet.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
parent
5f07d15a77
commit
a910e4a94f
34 changed files with 15040 additions and 0 deletions
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@ -2299,6 +2299,11 @@ M: Jaya Kumar <jayakumar.alsa@gmail.com>
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S: Maintained
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F: sound/pci/cs5535audio/
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CW1200 WLAN driver
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M: Solomon Peachy <pizza@shaftnet.org>
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S: Maintained
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F: drivers/net/wireless/cw1200/
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CX18 VIDEO4LINUX DRIVER
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M: Andy Walls <awalls@md.metrocast.net>
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L: ivtv-devel@ivtvdriver.org (moderated for non-subscribers)
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@ -280,5 +280,6 @@ source "drivers/net/wireless/rtlwifi/Kconfig"
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source "drivers/net/wireless/ti/Kconfig"
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source "drivers/net/wireless/zd1211rw/Kconfig"
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source "drivers/net/wireless/mwifiex/Kconfig"
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source "drivers/net/wireless/cw1200/Kconfig"
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endif # WLAN
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@ -57,3 +57,5 @@ obj-$(CONFIG_MWIFIEX) += mwifiex/
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obj-$(CONFIG_BRCMFMAC) += brcm80211/
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obj-$(CONFIG_BRCMSMAC) += brcm80211/
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obj-$(CONFIG_CW1200) += cw1200/
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46
drivers/net/wireless/cw1200/Kconfig
Normal file
46
drivers/net/wireless/cw1200/Kconfig
Normal file
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@ -0,0 +1,46 @@
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config CW1200
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tristate "CW1200 WLAN support"
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depends on MAC80211 && CFG80211
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help
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This is a driver for the ST-E CW1100 & CW1200 WLAN chipsets.
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This option just enables the driver core, see below for
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specific bus support.
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if CW1200
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config CW1200_WLAN_SDIO
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tristate "Support SDIO platforms"
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depends on CW1200 && MMC
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help
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Enable support for the CW1200 connected via an SDIO bus.
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config CW1200_WLAN_SPI
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tristate "Support SPI platforms"
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depends on CW1200 && SPI
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help
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Enables support for the CW1200 connected via a SPI bus.
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config CW1200_WLAN_SAGRAD
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tristate "Support Sagrad SG901-1091/1098 modules"
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depends on CW1200_WLAN_SDIO
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help
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This provides the platform data glue to support the
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Sagrad SG901-1091/1098 modules in their standard SDIO EVK.
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It also includes example SPI platform data.
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menu "Driver debug features"
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depends on CW1200 && DEBUG_FS
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config CW1200_ETF
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bool "Enable CW1200 Engineering Test Framework hooks"
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help
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If you don't know what this is, just say N.
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config CW1200_ITP
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bool "Enable ITP access"
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help
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If you don't know what this is, just say N.
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endmenu
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endif
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24
drivers/net/wireless/cw1200/Makefile
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24
drivers/net/wireless/cw1200/Makefile
Normal file
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@ -0,0 +1,24 @@
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cw1200_core-y := \
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fwio.o \
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txrx.o \
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main.o \
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queue.o \
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hwio.o \
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bh.o \
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wsm.o \
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sta.o \
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scan.o \
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pm.o \
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debug.o
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cw1200_core-$(CONFIG_CW1200_ITP) += itp.o
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# CFLAGS_sta.o += -DDEBUG
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cw1200_wlan_sdio-y := cw1200_sdio.o
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cw1200_wlan_spi-y := cw1200_spi.o
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cw1200_wlan_sagrad-y := cw1200_sagrad.o
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obj-$(CONFIG_CW1200) += cw1200_core.o
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obj-$(CONFIG_CW1200_WLAN_SDIO) += cw1200_wlan_sdio.o
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obj-$(CONFIG_CW1200_WLAN_SPI) += cw1200_wlan_spi.o
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obj-$(CONFIG_CW1200_WLAN_SAGRAD) += cw1200_wlan_sagrad.o
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616
drivers/net/wireless/cw1200/bh.c
Normal file
616
drivers/net/wireless/cw1200/bh.c
Normal file
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@ -0,0 +1,616 @@
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/*
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* Device handling thread implementation for mac80211 ST-Ericsson CW1200 drivers
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*
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* Copyright (c) 2010, ST-Ericsson
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* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
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*
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* Based on:
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* ST-Ericsson UMAC CW1200 driver, which is
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* Copyright (c) 2010, ST-Ericsson
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* Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <net/mac80211.h>
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#include <linux/kthread.h>
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#include <linux/timer.h>
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#include "cw1200.h"
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#include "bh.h"
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#include "hwio.h"
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#include "wsm.h"
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#include "sbus.h"
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#include "debug.h"
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#include "fwio.h"
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static int cw1200_bh(void *arg);
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#define DOWNLOAD_BLOCK_SIZE_WR (0x1000 - 4)
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/* an SPI message cannot be bigger than (2"12-1)*2 bytes
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* "*2" to cvt to bytes */
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#define MAX_SZ_RD_WR_BUFFERS (DOWNLOAD_BLOCK_SIZE_WR*2)
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#define PIGGYBACK_CTRL_REG (2)
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#define EFFECTIVE_BUF_SIZE (MAX_SZ_RD_WR_BUFFERS - PIGGYBACK_CTRL_REG)
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/* Suspend state privates */
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enum cw1200_bh_pm_state {
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CW1200_BH_RESUMED = 0,
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CW1200_BH_SUSPEND,
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CW1200_BH_SUSPENDED,
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CW1200_BH_RESUME,
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};
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typedef int (*cw1200_wsm_handler)(struct cw1200_common *priv,
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u8 *data, size_t size);
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static void cw1200_bh_work(struct work_struct *work)
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{
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struct cw1200_common *priv =
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container_of(work, struct cw1200_common, bh_work);
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cw1200_bh(priv);
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}
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int cw1200_register_bh(struct cw1200_common *priv)
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{
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int err = 0;
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/* Realtime workqueue */
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priv->bh_workqueue = alloc_workqueue("cw1200_bh",
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WQ_MEM_RECLAIM | WQ_HIGHPRI
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| WQ_CPU_INTENSIVE, 1);
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if (!priv->bh_workqueue)
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return -ENOMEM;
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INIT_WORK(&priv->bh_work, cw1200_bh_work);
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pr_debug("[BH] register.\n");
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atomic_set(&priv->bh_rx, 0);
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atomic_set(&priv->bh_tx, 0);
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atomic_set(&priv->bh_term, 0);
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atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
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priv->bh_error = 0;
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priv->hw_bufs_used = 0;
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priv->buf_id_tx = 0;
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priv->buf_id_rx = 0;
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init_waitqueue_head(&priv->bh_wq);
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init_waitqueue_head(&priv->bh_evt_wq);
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err = !queue_work(priv->bh_workqueue, &priv->bh_work);
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WARN_ON(err);
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return err;
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}
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void cw1200_unregister_bh(struct cw1200_common *priv)
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{
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atomic_add(1, &priv->bh_term);
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wake_up(&priv->bh_wq);
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flush_workqueue(priv->bh_workqueue);
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destroy_workqueue(priv->bh_workqueue);
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priv->bh_workqueue = NULL;
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pr_debug("[BH] unregistered.\n");
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}
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void cw1200_irq_handler(struct cw1200_common *priv)
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{
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pr_debug("[BH] irq.\n");
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/* Disable Interrupts! */
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/* NOTE: sbus_ops->lock already held */
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__cw1200_irq_enable(priv, 0);
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if (/* WARN_ON */(priv->bh_error))
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return;
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if (atomic_add_return(1, &priv->bh_rx) == 1)
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wake_up(&priv->bh_wq);
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}
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EXPORT_SYMBOL_GPL(cw1200_irq_handler);
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void cw1200_bh_wakeup(struct cw1200_common *priv)
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{
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pr_debug("[BH] wakeup.\n");
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if (priv->bh_error) {
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pr_err("[BH] wakeup failed (BH error)\n");
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return;
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}
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if (atomic_add_return(1, &priv->bh_tx) == 1)
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wake_up(&priv->bh_wq);
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}
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int cw1200_bh_suspend(struct cw1200_common *priv)
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{
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pr_debug("[BH] suspend.\n");
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if (priv->bh_error) {
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wiphy_warn(priv->hw->wiphy, "BH error -- can't suspend\n");
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return -EINVAL;
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}
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atomic_set(&priv->bh_suspend, CW1200_BH_SUSPEND);
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wake_up(&priv->bh_wq);
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return wait_event_timeout(priv->bh_evt_wq, priv->bh_error ||
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(CW1200_BH_SUSPENDED == atomic_read(&priv->bh_suspend)),
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1 * HZ) ? 0 : -ETIMEDOUT;
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}
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int cw1200_bh_resume(struct cw1200_common *priv)
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{
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pr_debug("[BH] resume.\n");
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if (priv->bh_error) {
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wiphy_warn(priv->hw->wiphy, "BH error -- can't resume\n");
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return -EINVAL;
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}
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atomic_set(&priv->bh_suspend, CW1200_BH_RESUME);
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wake_up(&priv->bh_wq);
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return wait_event_timeout(priv->bh_evt_wq, priv->bh_error ||
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(CW1200_BH_RESUMED == atomic_read(&priv->bh_suspend)),
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1 * HZ) ? 0 : -ETIMEDOUT;
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}
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static inline void wsm_alloc_tx_buffer(struct cw1200_common *priv)
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{
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++priv->hw_bufs_used;
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}
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int wsm_release_tx_buffer(struct cw1200_common *priv, int count)
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{
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int ret = 0;
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int hw_bufs_used = priv->hw_bufs_used;
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priv->hw_bufs_used -= count;
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if (WARN_ON(priv->hw_bufs_used < 0))
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ret = -1;
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else if (hw_bufs_used >= priv->wsm_caps.input_buffers)
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ret = 1;
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if (!priv->hw_bufs_used)
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wake_up(&priv->bh_evt_wq);
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return ret;
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}
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static int cw1200_bh_read_ctrl_reg(struct cw1200_common *priv,
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u16 *ctrl_reg)
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{
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int ret;
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ret = cw1200_reg_read_16(priv,
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ST90TDS_CONTROL_REG_ID, ctrl_reg);
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if (ret) {
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ret = cw1200_reg_read_16(priv,
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ST90TDS_CONTROL_REG_ID, ctrl_reg);
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if (ret)
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pr_err("[BH] Failed to read control register.\n");
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}
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return ret;
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}
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static int cw1200_device_wakeup(struct cw1200_common *priv)
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{
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u16 ctrl_reg;
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int ret;
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pr_debug("[BH] Device wakeup.\n");
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/* First, set the dpll register */
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ret = cw1200_reg_write_32(priv, ST90TDS_TSET_GEN_R_W_REG_ID,
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cw1200_dpll_from_clk(priv->hw_refclk));
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if (WARN_ON(ret))
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return ret;
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/* To force the device to be always-on, the host sets WLAN_UP to 1 */
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ret = cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID,
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ST90TDS_CONT_WUP_BIT);
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if (WARN_ON(ret))
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return ret;
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ret = cw1200_bh_read_ctrl_reg(priv, &ctrl_reg);
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if (WARN_ON(ret))
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return ret;
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/* If the device returns WLAN_RDY as 1, the device is active and will
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* remain active. */
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if (ctrl_reg & ST90TDS_CONT_RDY_BIT) {
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pr_debug("[BH] Device awake.\n");
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return 1;
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}
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return 0;
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}
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/* Must be called from BH thraed. */
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void cw1200_enable_powersave(struct cw1200_common *priv,
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bool enable)
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{
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pr_debug("[BH] Powerave is %s.\n",
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enable ? "enabled" : "disabled");
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priv->powersave_enabled = enable;
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}
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static int cw1200_bh_rx_helper(struct cw1200_common *priv,
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uint16_t *ctrl_reg,
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int *tx)
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{
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size_t read_len = 0;
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struct sk_buff *skb_rx = NULL;
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struct wsm_hdr *wsm;
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size_t wsm_len;
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u16 wsm_id;
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u8 wsm_seq;
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int rx_resync = 1;
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size_t alloc_len;
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u8 *data;
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read_len = (*ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) * 2;
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if (!read_len)
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return 0; /* No more work */
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if (WARN_ON((read_len < sizeof(struct wsm_hdr)) ||
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(read_len > EFFECTIVE_BUF_SIZE))) {
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pr_debug("Invalid read len: %zu (%04x)",
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read_len, *ctrl_reg);
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goto err;
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}
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/* Add SIZE of PIGGYBACK reg (CONTROL Reg)
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* to the NEXT Message length + 2 Bytes for SKB */
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read_len = read_len + 2;
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alloc_len = priv->sbus_ops->align_size(
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priv->sbus_priv, read_len);
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/* Check if not exceeding CW1200 capabilities */
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if (WARN_ON_ONCE(alloc_len > EFFECTIVE_BUF_SIZE)) {
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pr_debug("Read aligned len: %zu\n",
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alloc_len);
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}
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skb_rx = dev_alloc_skb(alloc_len);
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if (WARN_ON(!skb_rx))
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goto err;
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skb_trim(skb_rx, 0);
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skb_put(skb_rx, read_len);
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data = skb_rx->data;
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if (WARN_ON(!data))
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goto err;
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if (WARN_ON(cw1200_data_read(priv, data, alloc_len))) {
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pr_err("rx blew up, len %zu\n", alloc_len);
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goto err;
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}
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/* Piggyback */
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*ctrl_reg = __le16_to_cpu(
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((__le16 *)data)[alloc_len / 2 - 1]);
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wsm = (struct wsm_hdr *)data;
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wsm_len = __le16_to_cpu(wsm->len);
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if (WARN_ON(wsm_len > read_len))
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goto err;
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if (priv->wsm_enable_wsm_dumps)
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print_hex_dump_bytes("<-- ",
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DUMP_PREFIX_NONE,
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data, wsm_len);
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wsm_id = __le16_to_cpu(wsm->id) & 0xFFF;
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wsm_seq = (__le16_to_cpu(wsm->id) >> 13) & 7;
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skb_trim(skb_rx, wsm_len);
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if (wsm_id == 0x0800) {
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wsm_handle_exception(priv,
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&data[sizeof(*wsm)],
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wsm_len - sizeof(*wsm));
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goto err;
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} else if (!rx_resync) {
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if (WARN_ON(wsm_seq != priv->wsm_rx_seq))
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goto err;
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}
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priv->wsm_rx_seq = (wsm_seq + 1) & 7;
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rx_resync = 0;
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if (wsm_id & 0x0400) {
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int rc = wsm_release_tx_buffer(priv, 1);
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if (WARN_ON(rc < 0))
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return rc;
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else if (rc > 0)
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*tx = 1;
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}
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/* cw1200_wsm_rx takes care on SKB livetime */
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if (WARN_ON(wsm_handle_rx(priv, wsm_id, wsm, &skb_rx)))
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goto err;
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if (skb_rx) {
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dev_kfree_skb(skb_rx);
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skb_rx = NULL;
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}
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return 0;
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err:
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if (skb_rx) {
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dev_kfree_skb(skb_rx);
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skb_rx = NULL;
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}
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return -1;
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}
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static int cw1200_bh_tx_helper(struct cw1200_common *priv,
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int *pending_tx,
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int *tx_burst)
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{
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size_t tx_len;
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u8 *data;
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int ret;
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struct wsm_hdr *wsm;
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if (priv->device_can_sleep) {
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ret = cw1200_device_wakeup(priv);
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if (WARN_ON(ret < 0)) { /* Error in wakeup */
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||||
*pending_tx = 1;
|
||||
return 0;
|
||||
} else if (ret) { /* Woke up */
|
||||
priv->device_can_sleep = false;
|
||||
} else { /* Did not awake */
|
||||
*pending_tx = 1;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
wsm_alloc_tx_buffer(priv);
|
||||
ret = wsm_get_tx(priv, &data, &tx_len, tx_burst);
|
||||
if (ret <= 0) {
|
||||
wsm_release_tx_buffer(priv, 1);
|
||||
if (WARN_ON(ret < 0))
|
||||
return ret; /* Error */
|
||||
return 0; /* No work */
|
||||
}
|
||||
|
||||
wsm = (struct wsm_hdr *)data;
|
||||
BUG_ON(tx_len < sizeof(*wsm));
|
||||
BUG_ON(__le16_to_cpu(wsm->len) != tx_len);
|
||||
|
||||
atomic_add(1, &priv->bh_tx);
|
||||
|
||||
tx_len = priv->sbus_ops->align_size(
|
||||
priv->sbus_priv, tx_len);
|
||||
|
||||
/* Check if not exceeding CW1200 capabilities */
|
||||
if (WARN_ON_ONCE(tx_len > EFFECTIVE_BUF_SIZE))
|
||||
pr_debug("Write aligned len: %zu\n", tx_len);
|
||||
|
||||
wsm->id &= __cpu_to_le16(0xffff ^ WSM_TX_SEQ(WSM_TX_SEQ_MAX));
|
||||
wsm->id |= __cpu_to_le16(WSM_TX_SEQ(priv->wsm_tx_seq));
|
||||
|
||||
if (WARN_ON(cw1200_data_write(priv, data, tx_len))) {
|
||||
pr_err("tx blew up, len %zu\n", tx_len);
|
||||
wsm_release_tx_buffer(priv, 1);
|
||||
return -1; /* Error */
|
||||
}
|
||||
|
||||
if (priv->wsm_enable_wsm_dumps)
|
||||
print_hex_dump_bytes("--> ",
|
||||
DUMP_PREFIX_NONE,
|
||||
data,
|
||||
__le16_to_cpu(wsm->len));
|
||||
|
||||
wsm_txed(priv, data);
|
||||
priv->wsm_tx_seq = (priv->wsm_tx_seq + 1) & WSM_TX_SEQ_MAX;
|
||||
|
||||
if (*tx_burst > 1) {
|
||||
cw1200_debug_tx_burst(priv);
|
||||
return 1; /* Work remains */
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_bh(void *arg)
|
||||
{
|
||||
struct cw1200_common *priv = arg;
|
||||
int rx, tx, term, suspend;
|
||||
u16 ctrl_reg = 0;
|
||||
int tx_allowed;
|
||||
int pending_tx = 0;
|
||||
int tx_burst;
|
||||
long status;
|
||||
u32 dummy;
|
||||
int ret;
|
||||
|
||||
for (;;) {
|
||||
if (!priv->hw_bufs_used &&
|
||||
priv->powersave_enabled &&
|
||||
!priv->device_can_sleep &&
|
||||
!atomic_read(&priv->recent_scan)) {
|
||||
status = 1 * HZ;
|
||||
pr_debug("[BH] Device wakedown. No data.\n");
|
||||
cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID, 0);
|
||||
priv->device_can_sleep = true;
|
||||
} else if (priv->hw_bufs_used) {
|
||||
/* Interrupt loss detection */
|
||||
status = 1 * HZ;
|
||||
} else {
|
||||
status = MAX_SCHEDULE_TIMEOUT;
|
||||
}
|
||||
|
||||
/* Dummy Read for SDIO retry mechanism*/
|
||||
if ((priv->hw_type != -1) &&
|
||||
(atomic_read(&priv->bh_rx) == 0) &&
|
||||
(atomic_read(&priv->bh_tx) == 0))
|
||||
cw1200_reg_read(priv, ST90TDS_CONFIG_REG_ID,
|
||||
&dummy, sizeof(dummy));
|
||||
|
||||
pr_debug("[BH] waiting ...\n");
|
||||
status = wait_event_interruptible_timeout(priv->bh_wq, ({
|
||||
rx = atomic_xchg(&priv->bh_rx, 0);
|
||||
tx = atomic_xchg(&priv->bh_tx, 0);
|
||||
term = atomic_xchg(&priv->bh_term, 0);
|
||||
suspend = pending_tx ?
|
||||
0 : atomic_read(&priv->bh_suspend);
|
||||
(rx || tx || term || suspend || priv->bh_error);
|
||||
}), status);
|
||||
|
||||
pr_debug("[BH] - rx: %d, tx: %d, term: %d, suspend: %d, status: %ld\n",
|
||||
rx, tx, term, suspend, status);
|
||||
|
||||
/* Did an error occur? */
|
||||
if ((status < 0 && status != -ERESTARTSYS) ||
|
||||
term || priv->bh_error) {
|
||||
break;
|
||||
}
|
||||
if (!status) { /* wait_event timed out */
|
||||
unsigned long timestamp = jiffies;
|
||||
long timeout;
|
||||
int pending = 0;
|
||||
int i;
|
||||
|
||||
/* Check to see if we have any outstanding frames */
|
||||
if (priv->hw_bufs_used && (!rx || !tx)) {
|
||||
wiphy_warn(priv->hw->wiphy,
|
||||
"Missed interrupt? (%d frames outstanding)\n",
|
||||
priv->hw_bufs_used);
|
||||
rx = 1;
|
||||
|
||||
/* Get a timestamp of "oldest" frame */
|
||||
for (i = 0; i < 4; ++i)
|
||||
pending += cw1200_queue_get_xmit_timestamp(
|
||||
&priv->tx_queue[i],
|
||||
×tamp,
|
||||
priv->pending_frame_id);
|
||||
|
||||
/* Check if frame transmission is timed out.
|
||||
* Add an extra second with respect to possible
|
||||
* interrupt loss.
|
||||
*/
|
||||
timeout = timestamp +
|
||||
WSM_CMD_LAST_CHANCE_TIMEOUT +
|
||||
1 * HZ -
|
||||
jiffies;
|
||||
|
||||
/* And terminate BH thread if the frame is "stuck" */
|
||||
if (pending && timeout < 0) {
|
||||
wiphy_warn(priv->hw->wiphy,
|
||||
"Timeout waiting for TX confirm (%d/%d pending, %ld vs %lu).\n",
|
||||
priv->hw_bufs_used, pending,
|
||||
timestamp, jiffies);
|
||||
break;
|
||||
}
|
||||
} else if (!priv->device_can_sleep &&
|
||||
!atomic_read(&priv->recent_scan)) {
|
||||
pr_debug("[BH] Device wakedown. Timeout.\n");
|
||||
cw1200_reg_write_16(priv,
|
||||
ST90TDS_CONTROL_REG_ID, 0);
|
||||
priv->device_can_sleep = true;
|
||||
}
|
||||
goto done;
|
||||
} else if (suspend) {
|
||||
pr_debug("[BH] Device suspend.\n");
|
||||
if (priv->powersave_enabled) {
|
||||
pr_debug("[BH] Device wakedown. Suspend.\n");
|
||||
cw1200_reg_write_16(priv,
|
||||
ST90TDS_CONTROL_REG_ID, 0);
|
||||
priv->device_can_sleep = true;
|
||||
}
|
||||
|
||||
atomic_set(&priv->bh_suspend, CW1200_BH_SUSPENDED);
|
||||
wake_up(&priv->bh_evt_wq);
|
||||
status = wait_event_interruptible(priv->bh_wq,
|
||||
CW1200_BH_RESUME == atomic_read(&priv->bh_suspend));
|
||||
if (status < 0) {
|
||||
wiphy_err(priv->hw->wiphy,
|
||||
"Failed to wait for resume: %ld.\n",
|
||||
status);
|
||||
break;
|
||||
}
|
||||
pr_debug("[BH] Device resume.\n");
|
||||
atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
|
||||
wake_up(&priv->bh_evt_wq);
|
||||
atomic_add(1, &priv->bh_rx);
|
||||
goto done;
|
||||
}
|
||||
|
||||
rx:
|
||||
tx += pending_tx;
|
||||
pending_tx = 0;
|
||||
|
||||
if (cw1200_bh_read_ctrl_reg(priv, &ctrl_reg))
|
||||
break;
|
||||
|
||||
/* Don't bother trying to rx unless we have data to read */
|
||||
if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) {
|
||||
ret = cw1200_bh_rx_helper(priv, &ctrl_reg, &tx);
|
||||
if (ret < 0)
|
||||
break;
|
||||
/* Double up here if there's more data.. */
|
||||
if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) {
|
||||
ret = cw1200_bh_rx_helper(priv, &ctrl_reg, &tx);
|
||||
if (ret < 0)
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
tx:
|
||||
if (tx) {
|
||||
tx = 0;
|
||||
|
||||
BUG_ON(priv->hw_bufs_used > priv->wsm_caps.input_buffers);
|
||||
tx_burst = priv->wsm_caps.input_buffers - priv->hw_bufs_used;
|
||||
tx_allowed = tx_burst > 0;
|
||||
|
||||
if (!tx_allowed) {
|
||||
/* Buffers full. Ensure we process tx
|
||||
* after we handle rx..
|
||||
*/
|
||||
pending_tx = tx;
|
||||
goto done_rx;
|
||||
}
|
||||
ret = cw1200_bh_tx_helper(priv, &pending_tx, &tx_burst);
|
||||
if (ret < 0)
|
||||
break;
|
||||
if (ret > 0) /* More to transmit */
|
||||
tx = ret;
|
||||
|
||||
/* Re-read ctrl reg */
|
||||
if (cw1200_bh_read_ctrl_reg(priv, &ctrl_reg))
|
||||
break;
|
||||
}
|
||||
|
||||
done_rx:
|
||||
if (priv->bh_error)
|
||||
break;
|
||||
if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK)
|
||||
goto rx;
|
||||
if (tx)
|
||||
goto tx;
|
||||
|
||||
done:
|
||||
/* Re-enable device interrupts */
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
__cw1200_irq_enable(priv, 1);
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
}
|
||||
|
||||
/* Explicitly disable device interrupts */
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
__cw1200_irq_enable(priv, 0);
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
|
||||
if (!term) {
|
||||
pr_err("[BH] Fatal error, exiting.\n");
|
||||
priv->bh_error = 1;
|
||||
/* TODO: schedule_work(recovery) */
|
||||
}
|
||||
return 0;
|
||||
}
|
28
drivers/net/wireless/cw1200/bh.h
Normal file
28
drivers/net/wireless/cw1200/bh.h
Normal file
|
@ -0,0 +1,28 @@
|
|||
/*
|
||||
* Device handling thread interface for mac80211 ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef CW1200_BH_H
|
||||
#define CW1200_BH_H
|
||||
|
||||
/* extern */ struct cw1200_common;
|
||||
|
||||
int cw1200_register_bh(struct cw1200_common *priv);
|
||||
void cw1200_unregister_bh(struct cw1200_common *priv);
|
||||
void cw1200_irq_handler(struct cw1200_common *priv);
|
||||
void cw1200_bh_wakeup(struct cw1200_common *priv);
|
||||
int cw1200_bh_suspend(struct cw1200_common *priv);
|
||||
int cw1200_bh_resume(struct cw1200_common *priv);
|
||||
/* Must be called from BH thread. */
|
||||
void cw1200_enable_powersave(struct cw1200_common *priv,
|
||||
bool enable);
|
||||
int wsm_release_tx_buffer(struct cw1200_common *priv, int count);
|
||||
|
||||
#endif /* CW1200_BH_H */
|
332
drivers/net/wireless/cw1200/cw1200.h
Normal file
332
drivers/net/wireless/cw1200/cw1200.h
Normal file
|
@ -0,0 +1,332 @@
|
|||
/*
|
||||
* Common private data for ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* Based on the mac80211 Prism54 code, which is
|
||||
* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
|
||||
*
|
||||
* Based on the islsm (softmac prism54) driver, which is:
|
||||
* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef CW1200_H
|
||||
#define CW1200_H
|
||||
|
||||
#include <linux/wait.h>
|
||||
#include <linux/version.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <net/mac80211.h>
|
||||
|
||||
#include "queue.h"
|
||||
#include "wsm.h"
|
||||
#include "scan.h"
|
||||
#include "txrx.h"
|
||||
#include "pm.h"
|
||||
|
||||
/* Forward declarations */
|
||||
struct sbus_ops;
|
||||
struct task_struct;
|
||||
struct cw1200_debug_priv;
|
||||
struct firmware;
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
extern int etf_mode;
|
||||
extern char *etf_firmware;
|
||||
#endif
|
||||
|
||||
#define CW1200_MAX_CTRL_FRAME_LEN (0x1000)
|
||||
|
||||
#define CW1200_MAX_STA_IN_AP_MODE (5)
|
||||
#define CW1200_LINK_ID_AFTER_DTIM (CW1200_MAX_STA_IN_AP_MODE + 1)
|
||||
#define CW1200_LINK_ID_UAPSD (CW1200_MAX_STA_IN_AP_MODE + 2)
|
||||
#define CW1200_LINK_ID_MAX (CW1200_MAX_STA_IN_AP_MODE + 3)
|
||||
#define CW1200_MAX_REQUEUE_ATTEMPTS (5)
|
||||
|
||||
#define CW1200_MAX_TID (8)
|
||||
|
||||
#define CW1200_BLOCK_ACK_CNT (30)
|
||||
#define CW1200_BLOCK_ACK_THLD (800)
|
||||
#define CW1200_BLOCK_ACK_HIST (3)
|
||||
#define CW1200_BLOCK_ACK_INTERVAL (1 * HZ / CW1200_BLOCK_ACK_HIST)
|
||||
|
||||
#define CW1200_JOIN_TIMEOUT (1 * HZ)
|
||||
#define CW1200_AUTH_TIMEOUT (5 * HZ)
|
||||
|
||||
struct cw1200_ht_info {
|
||||
struct ieee80211_sta_ht_cap ht_cap;
|
||||
enum nl80211_channel_type channel_type;
|
||||
u16 operation_mode;
|
||||
};
|
||||
|
||||
/* Please keep order */
|
||||
enum cw1200_join_status {
|
||||
CW1200_JOIN_STATUS_PASSIVE = 0,
|
||||
CW1200_JOIN_STATUS_MONITOR,
|
||||
CW1200_JOIN_STATUS_JOINING,
|
||||
CW1200_JOIN_STATUS_PRE_STA,
|
||||
CW1200_JOIN_STATUS_STA,
|
||||
CW1200_JOIN_STATUS_IBSS,
|
||||
CW1200_JOIN_STATUS_AP,
|
||||
};
|
||||
|
||||
enum cw1200_link_status {
|
||||
CW1200_LINK_OFF,
|
||||
CW1200_LINK_RESERVE,
|
||||
CW1200_LINK_SOFT,
|
||||
CW1200_LINK_HARD,
|
||||
CW1200_LINK_RESET,
|
||||
CW1200_LINK_RESET_REMAP,
|
||||
};
|
||||
|
||||
extern int cw1200_power_mode;
|
||||
extern const char * const cw1200_fw_types[];
|
||||
|
||||
struct cw1200_link_entry {
|
||||
unsigned long timestamp;
|
||||
enum cw1200_link_status status;
|
||||
enum cw1200_link_status prev_status;
|
||||
u8 mac[ETH_ALEN];
|
||||
u8 buffered[CW1200_MAX_TID];
|
||||
struct sk_buff_head rx_queue;
|
||||
};
|
||||
|
||||
struct cw1200_common {
|
||||
/* interfaces to the rest of the stack */
|
||||
struct ieee80211_hw *hw;
|
||||
struct ieee80211_vif *vif;
|
||||
struct device *pdev;
|
||||
|
||||
/* Statistics */
|
||||
struct ieee80211_low_level_stats stats;
|
||||
|
||||
/* Our macaddr */
|
||||
u8 mac_addr[ETH_ALEN];
|
||||
|
||||
/* Hardware interface */
|
||||
const struct sbus_ops *sbus_ops;
|
||||
struct sbus_priv *sbus_priv;
|
||||
|
||||
/* Hardware information */
|
||||
enum {
|
||||
HIF_9000_SILICON_VERSATILE = 0,
|
||||
HIF_8601_VERSATILE,
|
||||
HIF_8601_SILICON,
|
||||
} hw_type;
|
||||
enum {
|
||||
CW1200_HW_REV_CUT10 = 10,
|
||||
CW1200_HW_REV_CUT11 = 11,
|
||||
CW1200_HW_REV_CUT20 = 20,
|
||||
CW1200_HW_REV_CUT22 = 22,
|
||||
CW1X60_HW_REV = 40,
|
||||
} hw_revision;
|
||||
int hw_refclk;
|
||||
bool hw_have_5ghz;
|
||||
const struct firmware *sdd;
|
||||
char *sdd_path;
|
||||
|
||||
struct cw1200_debug_priv *debug;
|
||||
|
||||
struct workqueue_struct *workqueue;
|
||||
struct mutex conf_mutex;
|
||||
|
||||
struct cw1200_queue tx_queue[4];
|
||||
struct cw1200_queue_stats tx_queue_stats;
|
||||
int tx_burst_idx;
|
||||
|
||||
/* firmware/hardware info */
|
||||
unsigned int tx_hdr_len;
|
||||
|
||||
/* Radio data */
|
||||
int output_power;
|
||||
|
||||
/* BBP/MAC state */
|
||||
struct ieee80211_rate *rates;
|
||||
struct ieee80211_rate *mcs_rates;
|
||||
struct ieee80211_channel *channel;
|
||||
struct wsm_edca_params edca;
|
||||
struct wsm_tx_queue_params tx_queue_params;
|
||||
struct wsm_mib_association_mode association_mode;
|
||||
struct wsm_set_bss_params bss_params;
|
||||
struct cw1200_ht_info ht_info;
|
||||
struct wsm_set_pm powersave_mode;
|
||||
struct wsm_set_pm firmware_ps_mode;
|
||||
int cqm_rssi_thold;
|
||||
unsigned cqm_rssi_hyst;
|
||||
bool cqm_use_rssi;
|
||||
int cqm_beacon_loss_count;
|
||||
int channel_switch_in_progress;
|
||||
wait_queue_head_t channel_switch_done;
|
||||
u8 long_frame_max_tx_count;
|
||||
u8 short_frame_max_tx_count;
|
||||
int mode;
|
||||
bool enable_beacon;
|
||||
int beacon_int;
|
||||
bool listening;
|
||||
struct wsm_rx_filter rx_filter;
|
||||
struct wsm_mib_multicast_filter multicast_filter;
|
||||
bool has_multicast_subscription;
|
||||
bool disable_beacon_filter;
|
||||
struct work_struct update_filtering_work;
|
||||
struct work_struct set_beacon_wakeup_period_work;
|
||||
|
||||
u8 ba_rx_tid_mask;
|
||||
u8 ba_tx_tid_mask;
|
||||
|
||||
struct cw1200_pm_state pm_state;
|
||||
|
||||
struct wsm_p2p_ps_modeinfo p2p_ps_modeinfo;
|
||||
struct wsm_uapsd_info uapsd_info;
|
||||
bool setbssparams_done;
|
||||
bool bt_present;
|
||||
u8 conf_listen_interval;
|
||||
u32 listen_interval;
|
||||
u32 erp_info;
|
||||
u32 rts_threshold;
|
||||
|
||||
/* BH */
|
||||
atomic_t bh_rx;
|
||||
atomic_t bh_tx;
|
||||
atomic_t bh_term;
|
||||
atomic_t bh_suspend;
|
||||
|
||||
struct workqueue_struct *bh_workqueue;
|
||||
struct work_struct bh_work;
|
||||
|
||||
int bh_error;
|
||||
wait_queue_head_t bh_wq;
|
||||
wait_queue_head_t bh_evt_wq;
|
||||
u8 buf_id_tx;
|
||||
u8 buf_id_rx;
|
||||
u8 wsm_rx_seq;
|
||||
u8 wsm_tx_seq;
|
||||
int hw_bufs_used;
|
||||
bool powersave_enabled;
|
||||
bool device_can_sleep;
|
||||
|
||||
/* Scan status */
|
||||
struct cw1200_scan scan;
|
||||
/* Keep cw1200 awake (WUP = 1) 1 second after each scan to avoid
|
||||
* FW issue with sleeping/waking up. */
|
||||
atomic_t recent_scan;
|
||||
struct delayed_work clear_recent_scan_work;
|
||||
|
||||
/* WSM */
|
||||
struct wsm_startup_ind wsm_caps;
|
||||
struct mutex wsm_cmd_mux;
|
||||
struct wsm_buf wsm_cmd_buf;
|
||||
struct wsm_cmd wsm_cmd;
|
||||
wait_queue_head_t wsm_cmd_wq;
|
||||
wait_queue_head_t wsm_startup_done;
|
||||
int firmware_ready;
|
||||
atomic_t tx_lock;
|
||||
|
||||
/* WSM debug */
|
||||
int wsm_enable_wsm_dumps;
|
||||
|
||||
/* WSM Join */
|
||||
enum cw1200_join_status join_status;
|
||||
u32 pending_frame_id;
|
||||
bool join_pending;
|
||||
struct delayed_work join_timeout;
|
||||
struct work_struct unjoin_work;
|
||||
struct work_struct join_complete_work;
|
||||
int join_complete_status;
|
||||
int join_dtim_period;
|
||||
bool delayed_unjoin;
|
||||
|
||||
/* TX/RX and security */
|
||||
s8 wep_default_key_id;
|
||||
struct work_struct wep_key_work;
|
||||
u32 key_map;
|
||||
struct wsm_add_key keys[WSM_KEY_MAX_INDEX + 1];
|
||||
|
||||
/* AP powersave */
|
||||
u32 link_id_map;
|
||||
struct cw1200_link_entry link_id_db[CW1200_MAX_STA_IN_AP_MODE];
|
||||
struct work_struct link_id_work;
|
||||
struct delayed_work link_id_gc_work;
|
||||
u32 sta_asleep_mask;
|
||||
u32 pspoll_mask;
|
||||
bool aid0_bit_set;
|
||||
spinlock_t ps_state_lock; /* Protect power save state */
|
||||
bool buffered_multicasts;
|
||||
bool tx_multicast;
|
||||
struct work_struct set_tim_work;
|
||||
struct work_struct set_cts_work;
|
||||
struct work_struct multicast_start_work;
|
||||
struct work_struct multicast_stop_work;
|
||||
struct timer_list mcast_timeout;
|
||||
|
||||
/* WSM events and CQM implementation */
|
||||
spinlock_t event_queue_lock; /* Protect event queue */
|
||||
struct list_head event_queue;
|
||||
struct work_struct event_handler;
|
||||
|
||||
struct delayed_work bss_loss_work;
|
||||
spinlock_t bss_loss_lock; /* Protect BSS loss state */
|
||||
int bss_loss_state;
|
||||
int bss_loss_confirm_id;
|
||||
int delayed_link_loss;
|
||||
struct work_struct bss_params_work;
|
||||
|
||||
/* TX rate policy cache */
|
||||
struct tx_policy_cache tx_policy_cache;
|
||||
struct work_struct tx_policy_upload_work;
|
||||
|
||||
/* legacy PS mode switch in suspend */
|
||||
int ps_mode_switch_in_progress;
|
||||
wait_queue_head_t ps_mode_switch_done;
|
||||
|
||||
/* Workaround for WFD testcase 6.1.10*/
|
||||
struct work_struct linkid_reset_work;
|
||||
u8 action_frame_sa[ETH_ALEN];
|
||||
u8 action_linkid;
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
struct sk_buff_head etf_q;
|
||||
#endif
|
||||
};
|
||||
|
||||
struct cw1200_sta_priv {
|
||||
int link_id;
|
||||
};
|
||||
|
||||
/* interfaces for the drivers */
|
||||
int cw1200_core_probe(const struct sbus_ops *sbus_ops,
|
||||
struct sbus_priv *sbus,
|
||||
struct device *pdev,
|
||||
struct cw1200_common **pself,
|
||||
int ref_clk, const u8 *macaddr,
|
||||
const char *sdd_path, bool have_5ghz);
|
||||
void cw1200_core_release(struct cw1200_common *self);
|
||||
|
||||
#define FWLOAD_BLOCK_SIZE (1024)
|
||||
|
||||
static inline int cw1200_is_ht(const struct cw1200_ht_info *ht_info)
|
||||
{
|
||||
return ht_info->channel_type != NL80211_CHAN_NO_HT;
|
||||
}
|
||||
|
||||
static inline int cw1200_ht_greenfield(const struct cw1200_ht_info *ht_info)
|
||||
{
|
||||
return cw1200_is_ht(ht_info) &&
|
||||
(ht_info->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
|
||||
!(ht_info->operation_mode &
|
||||
IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
|
||||
}
|
||||
|
||||
static inline int cw1200_ht_ampdu_density(const struct cw1200_ht_info *ht_info)
|
||||
{
|
||||
if (!cw1200_is_ht(ht_info))
|
||||
return 0;
|
||||
return ht_info->ht_cap.ampdu_density;
|
||||
}
|
||||
|
||||
#endif /* CW1200_H */
|
145
drivers/net/wireless/cw1200/cw1200_sagrad.c
Normal file
145
drivers/net/wireless/cw1200/cw1200_sagrad.c
Normal file
|
@ -0,0 +1,145 @@
|
|||
/*
|
||||
* Platform glue data for ST-Ericsson CW1200 driver
|
||||
*
|
||||
* Copyright (c) 2013, Sagrad, Inc
|
||||
* Author: Solomon Peachy <speachy@sagrad.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/cw1200_platform.h>
|
||||
|
||||
MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
|
||||
MODULE_DESCRIPTION("ST-Ericsson CW1200 Platform glue driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
/* Define just one of these. Feel free to customize as needed */
|
||||
#define SAGRAD_1091_1098_EVK_SDIO
|
||||
/* #define SAGRAD_1091_1098_EVK_SPI */
|
||||
|
||||
#ifdef SAGRAD_1091_1098_EVK_SDIO
|
||||
#if 0
|
||||
static struct resource cw1200_href_resources[] = {
|
||||
{
|
||||
.start = 215, /* fix me as appropriate */
|
||||
.end = 215, /* ditto */
|
||||
.flags = IORESOURCE_IO,
|
||||
.name = "cw1200_wlan_reset",
|
||||
},
|
||||
{
|
||||
.start = 216, /* fix me as appropriate */
|
||||
.end = 216, /* ditto */
|
||||
.flags = IORESOURCE_IO,
|
||||
.name = "cw1200_wlan_powerup",
|
||||
},
|
||||
{
|
||||
.start = NOMADIK_GPIO_TO_IRQ(216), /* fix me as appropriate */
|
||||
.end = NOMADIK_GPIO_TO_IRQ(216), /* ditto */
|
||||
.flags = IORESOURCE_IRQ,
|
||||
.name = "cw1200_wlan_irq",
|
||||
},
|
||||
};
|
||||
#endif
|
||||
|
||||
static int cw1200_power_ctrl(const struct cw1200_platform_data_sdio *pdata,
|
||||
bool enable)
|
||||
{
|
||||
/* Control 3v3 and 1v8 to hardware as appropriate */
|
||||
/* Note this is not needed if it's controlled elsewhere or always on */
|
||||
|
||||
/* May require delay for power to stabilize */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_clk_ctrl(const struct cw1200_platform_data_sdio *pdata,
|
||||
bool enable)
|
||||
{
|
||||
/* Turn CLK_32K off and on as appropriate. */
|
||||
/* Note this is not needed if it's always on */
|
||||
|
||||
/* May require delay for clock to stabilize */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct cw1200_platform_data_sdio cw1200_platform_data = {
|
||||
.ref_clk = 38400,
|
||||
.have_5ghz = false,
|
||||
#if 0
|
||||
.reset = &cw1200_href_resources[0],
|
||||
.powerup = &cw1200_href_resources[1],
|
||||
.irq = &cw1200_href_resources[2],
|
||||
#endif
|
||||
.power_ctrl = cw1200_power_ctrl,
|
||||
.clk_ctrl = cw1200_clk_ctrl,
|
||||
/* .macaddr = ??? */
|
||||
.sdd_file = "sdd_sagrad_1091_1098.bin",
|
||||
};
|
||||
#endif
|
||||
|
||||
#ifdef SAGRAD_1091_1098_EVK_SPI
|
||||
/* Note that this is an example of integrating into your board support file */
|
||||
static struct resource cw1200_href_resources[] = {
|
||||
{
|
||||
.start = GPIO_RF_RESET,
|
||||
.end = GPIO_RF_RESET,
|
||||
.flags = IORESOURCE_IO,
|
||||
.name = "cw1200_wlan_reset",
|
||||
},
|
||||
{
|
||||
.start = GPIO_RF_POWERUP,
|
||||
.end = GPIO_RF_POWERUP,
|
||||
.flags = IORESOURCE_IO,
|
||||
.name = "cw1200_wlan_powerup",
|
||||
},
|
||||
};
|
||||
|
||||
static int cw1200_power_ctrl(const struct cw1200_platform_data_spi *pdata,
|
||||
bool enable)
|
||||
{
|
||||
/* Control 3v3 and 1v8 to hardware as appropriate */
|
||||
/* Note this is not needed if it's controlled elsewhere or always on */
|
||||
|
||||
/* May require delay for power to stabilize */
|
||||
return 0;
|
||||
}
|
||||
static int cw1200_clk_ctrl(const struct cw1200_platform_data_spi *pdata,
|
||||
bool enable)
|
||||
{
|
||||
/* Turn CLK_32K off and on as appropriate. */
|
||||
/* Note this is not needed if it's always on */
|
||||
|
||||
/* May require delay for clock to stabilize */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct cw1200_platform_data_spi cw1200_platform_data = {
|
||||
.ref_clk = 38400,
|
||||
.spi_bits_per_word = 16,
|
||||
.reset = &cw1200_href_resources[0],
|
||||
.powerup = &cw1200_href_resources[1],
|
||||
.power_ctrl = cw1200_power_ctrl,
|
||||
.clk_ctrl = cw1200_clk_ctrl,
|
||||
/* .macaddr = ??? */
|
||||
.sdd_file = "sdd_sagrad_1091_1098.bin",
|
||||
};
|
||||
static struct spi_board_info myboard_spi_devices[] __initdata = {
|
||||
{
|
||||
.modalias = "cw1200_wlan_spi",
|
||||
.max_speed_hz = 10000000, /* 52MHz Max */
|
||||
.bus_num = 0,
|
||||
.irq = WIFI_IRQ,
|
||||
.platform_data = &cw1200_platform_data,
|
||||
.chip_select = 0,
|
||||
},
|
||||
};
|
||||
#endif
|
||||
|
||||
|
||||
const void *cw1200_get_platform_data(void)
|
||||
{
|
||||
return &cw1200_platform_data;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cw1200_get_platform_data);
|
409
drivers/net/wireless/cw1200/cw1200_sdio.c
Normal file
409
drivers/net/wireless/cw1200/cw1200_sdio.c
Normal file
|
@ -0,0 +1,409 @@
|
|||
/*
|
||||
* Mac80211 SDIO driver for ST-Ericsson CW1200 device
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/version.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/mmc/host.h>
|
||||
#include <linux/mmc/sdio_func.h>
|
||||
#include <linux/mmc/card.h>
|
||||
#include <linux/mmc/sdio.h>
|
||||
#include <net/mac80211.h>
|
||||
|
||||
#include "cw1200.h"
|
||||
#include "sbus.h"
|
||||
#include <linux/cw1200_platform.h>
|
||||
#include "hwio.h"
|
||||
|
||||
MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
|
||||
MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SDIO driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
#define SDIO_BLOCK_SIZE (512)
|
||||
|
||||
struct sbus_priv {
|
||||
struct sdio_func *func;
|
||||
struct cw1200_common *core;
|
||||
const struct cw1200_platform_data_sdio *pdata;
|
||||
};
|
||||
|
||||
#ifndef SDIO_VENDOR_ID_STE
|
||||
#define SDIO_VENDOR_ID_STE 0x0020
|
||||
#endif
|
||||
|
||||
#ifndef SDIO_DEVICE_ID_STE_CW1200
|
||||
#define SDIO_DEVICE_ID_STE_CW1200 0x2280
|
||||
#endif
|
||||
|
||||
static const struct sdio_device_id cw1200_sdio_ids[] = {
|
||||
{ SDIO_DEVICE(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200) },
|
||||
{ /* end: all zeroes */ },
|
||||
};
|
||||
|
||||
/* sbus_ops implemetation */
|
||||
|
||||
static int cw1200_sdio_memcpy_fromio(struct sbus_priv *self,
|
||||
unsigned int addr,
|
||||
void *dst, int count)
|
||||
{
|
||||
return sdio_memcpy_fromio(self->func, dst, addr, count);
|
||||
}
|
||||
|
||||
static int cw1200_sdio_memcpy_toio(struct sbus_priv *self,
|
||||
unsigned int addr,
|
||||
const void *src, int count)
|
||||
{
|
||||
return sdio_memcpy_toio(self->func, addr, (void *)src, count);
|
||||
}
|
||||
|
||||
static void cw1200_sdio_lock(struct sbus_priv *self)
|
||||
{
|
||||
sdio_claim_host(self->func);
|
||||
}
|
||||
|
||||
static void cw1200_sdio_unlock(struct sbus_priv *self)
|
||||
{
|
||||
sdio_release_host(self->func);
|
||||
}
|
||||
|
||||
static void cw1200_sdio_irq_handler(struct sdio_func *func)
|
||||
{
|
||||
struct sbus_priv *self = sdio_get_drvdata(func);
|
||||
|
||||
/* note: sdio_host already claimed here. */
|
||||
if (self->core)
|
||||
cw1200_irq_handler(self->core);
|
||||
}
|
||||
|
||||
static irqreturn_t cw1200_gpio_hardirq(int irq, void *dev_id)
|
||||
{
|
||||
return IRQ_WAKE_THREAD;
|
||||
}
|
||||
|
||||
static irqreturn_t cw1200_gpio_irq(int irq, void *dev_id)
|
||||
{
|
||||
struct sbus_priv *self = dev_id;
|
||||
|
||||
if (self->core) {
|
||||
sdio_claim_host(self->func);
|
||||
cw1200_irq_handler(self->core);
|
||||
sdio_release_host(self->func);
|
||||
return IRQ_HANDLED;
|
||||
} else {
|
||||
return IRQ_NONE;
|
||||
}
|
||||
}
|
||||
|
||||
static int cw1200_request_irq(struct sbus_priv *self)
|
||||
{
|
||||
int ret;
|
||||
const struct resource *irq = self->pdata->irq;
|
||||
u8 cccr;
|
||||
|
||||
cccr = sdio_f0_readb(self->func, SDIO_CCCR_IENx, &ret);
|
||||
if (WARN_ON(ret))
|
||||
goto err;
|
||||
|
||||
/* Master interrupt enable ... */
|
||||
cccr |= BIT(0);
|
||||
|
||||
/* ... for our function */
|
||||
cccr |= BIT(self->func->num);
|
||||
|
||||
sdio_f0_writeb(self->func, cccr, SDIO_CCCR_IENx, &ret);
|
||||
if (WARN_ON(ret))
|
||||
goto err;
|
||||
|
||||
ret = enable_irq_wake(irq->start);
|
||||
if (WARN_ON(ret))
|
||||
goto err;
|
||||
|
||||
/* Request the IRQ */
|
||||
ret = request_threaded_irq(irq->start, cw1200_gpio_hardirq,
|
||||
cw1200_gpio_irq,
|
||||
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
|
||||
irq->name, self);
|
||||
if (WARN_ON(ret))
|
||||
goto err;
|
||||
|
||||
return 0;
|
||||
|
||||
err:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cw1200_sdio_irq_subscribe(struct sbus_priv *self)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
pr_debug("SW IRQ subscribe\n");
|
||||
sdio_claim_host(self->func);
|
||||
if (self->pdata->irq)
|
||||
ret = cw1200_request_irq(self);
|
||||
else
|
||||
ret = sdio_claim_irq(self->func, cw1200_sdio_irq_handler);
|
||||
|
||||
sdio_release_host(self->func);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cw1200_sdio_irq_unsubscribe(struct sbus_priv *self)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
pr_debug("SW IRQ unsubscribe\n");
|
||||
|
||||
if (self->pdata->irq) {
|
||||
disable_irq_wake(self->pdata->irq->start);
|
||||
free_irq(self->pdata->irq->start, self);
|
||||
} else {
|
||||
sdio_claim_host(self->func);
|
||||
ret = sdio_release_irq(self->func);
|
||||
sdio_release_host(self->func);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
|
||||
{
|
||||
const struct resource *reset = pdata->reset;
|
||||
|
||||
if (reset) {
|
||||
gpio_set_value(reset->start, 0);
|
||||
msleep(30); /* Min is 2 * CLK32K cycles */
|
||||
gpio_free(reset->start);
|
||||
}
|
||||
|
||||
if (pdata->power_ctrl)
|
||||
pdata->power_ctrl(pdata, false);
|
||||
if (pdata->clk_ctrl)
|
||||
pdata->clk_ctrl(pdata, false);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
|
||||
{
|
||||
const struct resource *reset = pdata->reset;
|
||||
const struct resource *powerup = pdata->reset;
|
||||
|
||||
/* Ensure I/Os are pulled low */
|
||||
if (reset) {
|
||||
gpio_request(reset->start, reset->name);
|
||||
gpio_direction_output(reset->start, 0);
|
||||
}
|
||||
if (powerup) {
|
||||
gpio_request(powerup->start, powerup->name);
|
||||
gpio_direction_output(powerup->start, 0);
|
||||
}
|
||||
if (reset || powerup)
|
||||
msleep(50); /* Settle time */
|
||||
|
||||
/* Enable 3v3 and 1v8 to hardware */
|
||||
if (pdata->power_ctrl) {
|
||||
if (pdata->power_ctrl(pdata, true)) {
|
||||
pr_err("power_ctrl() failed!\n");
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Enable CLK32K */
|
||||
if (pdata->clk_ctrl) {
|
||||
if (pdata->clk_ctrl(pdata, true)) {
|
||||
pr_err("clk_ctrl() failed!\n");
|
||||
return -1;
|
||||
}
|
||||
msleep(10); /* Delay until clock is stable for 2 cycles */
|
||||
}
|
||||
|
||||
/* Enable POWERUP signal */
|
||||
if (powerup) {
|
||||
gpio_set_value(powerup->start, 1);
|
||||
msleep(250); /* or more..? */
|
||||
}
|
||||
/* Enable RSTn signal */
|
||||
if (reset) {
|
||||
gpio_set_value(reset->start, 1);
|
||||
msleep(50); /* Or more..? */
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static size_t cw1200_sdio_align_size(struct sbus_priv *self, size_t size)
|
||||
{
|
||||
if (self->pdata->no_nptb)
|
||||
size = round_up(size, SDIO_BLOCK_SIZE);
|
||||
else
|
||||
size = sdio_align_size(self->func, size);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static int cw1200_sdio_pm(struct sbus_priv *self, bool suspend)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
if (self->pdata->irq)
|
||||
ret = irq_set_irq_wake(self->pdata->irq->start, suspend);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct sbus_ops cw1200_sdio_sbus_ops = {
|
||||
.sbus_memcpy_fromio = cw1200_sdio_memcpy_fromio,
|
||||
.sbus_memcpy_toio = cw1200_sdio_memcpy_toio,
|
||||
.lock = cw1200_sdio_lock,
|
||||
.unlock = cw1200_sdio_unlock,
|
||||
.align_size = cw1200_sdio_align_size,
|
||||
.power_mgmt = cw1200_sdio_pm,
|
||||
};
|
||||
|
||||
/* Probe Function to be called by SDIO stack when device is discovered */
|
||||
static int cw1200_sdio_probe(struct sdio_func *func,
|
||||
const struct sdio_device_id *id)
|
||||
{
|
||||
struct sbus_priv *self;
|
||||
int status;
|
||||
|
||||
pr_info("cw1200_wlan_sdio: Probe called\n");
|
||||
|
||||
/* We are only able to handle the wlan function */
|
||||
if (func->num != 0x01)
|
||||
return -ENODEV;
|
||||
|
||||
self = kzalloc(sizeof(*self), GFP_KERNEL);
|
||||
if (!self) {
|
||||
pr_err("Can't allocate SDIO sbus_priv.\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
|
||||
|
||||
self->pdata = cw1200_get_platform_data();
|
||||
self->func = func;
|
||||
sdio_set_drvdata(func, self);
|
||||
sdio_claim_host(func);
|
||||
sdio_enable_func(func);
|
||||
sdio_release_host(func);
|
||||
|
||||
status = cw1200_sdio_irq_subscribe(self);
|
||||
|
||||
status = cw1200_core_probe(&cw1200_sdio_sbus_ops,
|
||||
self, &func->dev, &self->core,
|
||||
self->pdata->ref_clk,
|
||||
self->pdata->macaddr,
|
||||
self->pdata->sdd_file,
|
||||
self->pdata->have_5ghz);
|
||||
if (status) {
|
||||
cw1200_sdio_irq_unsubscribe(self);
|
||||
sdio_claim_host(func);
|
||||
sdio_disable_func(func);
|
||||
sdio_release_host(func);
|
||||
sdio_set_drvdata(func, NULL);
|
||||
kfree(self);
|
||||
}
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
/* Disconnect Function to be called by SDIO stack when
|
||||
* device is disconnected */
|
||||
static void cw1200_sdio_disconnect(struct sdio_func *func)
|
||||
{
|
||||
struct sbus_priv *self = sdio_get_drvdata(func);
|
||||
|
||||
if (self) {
|
||||
cw1200_sdio_irq_unsubscribe(self);
|
||||
if (self->core) {
|
||||
cw1200_core_release(self->core);
|
||||
self->core = NULL;
|
||||
}
|
||||
sdio_claim_host(func);
|
||||
sdio_disable_func(func);
|
||||
sdio_release_host(func);
|
||||
sdio_set_drvdata(func, NULL);
|
||||
kfree(self);
|
||||
}
|
||||
}
|
||||
|
||||
static int cw1200_sdio_suspend(struct device *dev)
|
||||
{
|
||||
int ret;
|
||||
struct sdio_func *func = dev_to_sdio_func(dev);
|
||||
struct sbus_priv *self = sdio_get_drvdata(func);
|
||||
|
||||
if (!cw1200_can_suspend(self->core))
|
||||
return -EAGAIN;
|
||||
|
||||
/* Notify SDIO that CW1200 will remain powered during suspend */
|
||||
ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
|
||||
if (ret)
|
||||
pr_err("Error setting SDIO pm flags: %i\n", ret);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cw1200_sdio_resume(struct device *dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops cw1200_pm_ops = {
|
||||
.suspend = cw1200_sdio_suspend,
|
||||
.resume = cw1200_sdio_resume,
|
||||
};
|
||||
|
||||
static struct sdio_driver sdio_driver = {
|
||||
.name = "cw1200_wlan_sdio",
|
||||
.id_table = cw1200_sdio_ids,
|
||||
.probe = cw1200_sdio_probe,
|
||||
.remove = cw1200_sdio_disconnect,
|
||||
.drv = {
|
||||
.pm = &cw1200_pm_ops,
|
||||
}
|
||||
};
|
||||
|
||||
/* Init Module function -> Called by insmod */
|
||||
static int __init cw1200_sdio_init(void)
|
||||
{
|
||||
const struct cw1200_platform_data_sdio *pdata;
|
||||
int ret;
|
||||
|
||||
pdata = cw1200_get_platform_data();
|
||||
|
||||
if (cw1200_sdio_on(pdata)) {
|
||||
ret = -1;
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = sdio_register_driver(&sdio_driver);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
return 0;
|
||||
|
||||
err:
|
||||
cw1200_sdio_off(pdata);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Called at Driver Unloading */
|
||||
static void __exit cw1200_sdio_exit(void)
|
||||
{
|
||||
const struct cw1200_platform_data_sdio *pdata;
|
||||
pdata = cw1200_get_platform_data();
|
||||
sdio_unregister_driver(&sdio_driver);
|
||||
cw1200_sdio_off(pdata);
|
||||
}
|
||||
|
||||
|
||||
module_init(cw1200_sdio_init);
|
||||
module_exit(cw1200_sdio_exit);
|
480
drivers/net/wireless/cw1200/cw1200_spi.c
Normal file
480
drivers/net/wireless/cw1200/cw1200_spi.c
Normal file
|
@ -0,0 +1,480 @@
|
|||
/*
|
||||
* Mac80211 SPI driver for ST-Ericsson CW1200 device
|
||||
*
|
||||
* Copyright (c) 2011, Sagrad Inc.
|
||||
* Author: Solomon Peachy <speachy@sagrad.com>
|
||||
*
|
||||
* Based on cw1200_sdio.c
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/version.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <net/mac80211.h>
|
||||
|
||||
#include <linux/spi/spi.h>
|
||||
#include <linux/device.h>
|
||||
|
||||
#include "cw1200.h"
|
||||
#include "sbus.h"
|
||||
#include <linux/cw1200_platform.h>
|
||||
#include "hwio.h"
|
||||
|
||||
MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
|
||||
MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SPI driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS("spi:cw1200_wlan_spi");
|
||||
|
||||
/* #define SPI_DEBUG */
|
||||
|
||||
struct sbus_priv {
|
||||
struct spi_device *func;
|
||||
struct cw1200_common *core;
|
||||
const struct cw1200_platform_data_spi *pdata;
|
||||
spinlock_t lock; /* Serialize all bus operations */
|
||||
int claimed;
|
||||
};
|
||||
|
||||
#define SDIO_TO_SPI_ADDR(addr) ((addr & 0x1f)>>2)
|
||||
#define SET_WRITE 0x7FFF /* usage: and operation */
|
||||
#define SET_READ 0x8000 /* usage: or operation */
|
||||
|
||||
/*
|
||||
Notes on byte ordering:
|
||||
LE: B0 B1 B2 B3
|
||||
BE: B3 B2 B1 B0
|
||||
|
||||
Hardware expects 32-bit data to be written as 16-bit BE words:
|
||||
|
||||
B1 B0 B3 B2
|
||||
|
||||
*/
|
||||
|
||||
static int cw1200_spi_memcpy_fromio(struct sbus_priv *self,
|
||||
unsigned int addr,
|
||||
void *dst, int count)
|
||||
{
|
||||
int ret, i;
|
||||
uint16_t regaddr;
|
||||
struct spi_message m;
|
||||
|
||||
struct spi_transfer t_addr = {
|
||||
.tx_buf = ®addr,
|
||||
.len = sizeof(regaddr),
|
||||
};
|
||||
struct spi_transfer t_msg = {
|
||||
.rx_buf = dst,
|
||||
.len = count,
|
||||
};
|
||||
|
||||
regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
|
||||
regaddr |= SET_READ;
|
||||
regaddr |= (count>>1);
|
||||
regaddr = cpu_to_le16(regaddr);
|
||||
|
||||
#ifdef SPI_DEBUG
|
||||
pr_info("READ : %04d from 0x%02x (%04x)\n", count, addr,
|
||||
le16_to_cpu(regaddr));
|
||||
#endif
|
||||
|
||||
#if defined(__LITTLE_ENDIAN)
|
||||
/* We have to byteswap if the SPI bus is limited to 8b operation */
|
||||
if (self->func->bits_per_word == 8)
|
||||
#endif
|
||||
regaddr = swab16(regaddr);
|
||||
|
||||
spi_message_init(&m);
|
||||
spi_message_add_tail(&t_addr, &m);
|
||||
spi_message_add_tail(&t_msg, &m);
|
||||
ret = spi_sync(self->func, &m);
|
||||
|
||||
#ifdef SPI_DEBUG
|
||||
pr_info("READ : ");
|
||||
for (i = 0; i < t_addr.len; i++)
|
||||
printk("%02x ", ((u8 *)t_addr.tx_buf)[i]);
|
||||
printk(" : ");
|
||||
for (i = 0; i < t_msg.len; i++)
|
||||
printk("%02x ", ((u8 *)t_msg.rx_buf)[i]);
|
||||
printk("\n");
|
||||
#endif
|
||||
|
||||
#if defined(__LITTLE_ENDIAN)
|
||||
/* We have to byteswap if the SPI bus is limited to 8b operation */
|
||||
if (self->func->bits_per_word == 8)
|
||||
#endif
|
||||
{
|
||||
uint16_t *buf = (uint16_t *)dst;
|
||||
for (i = 0; i < ((count + 1) >> 1); i++)
|
||||
buf[i] = swab16(buf[i]);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cw1200_spi_memcpy_toio(struct sbus_priv *self,
|
||||
unsigned int addr,
|
||||
const void *src, int count)
|
||||
{
|
||||
int rval, i;
|
||||
uint16_t regaddr;
|
||||
struct spi_transfer t_addr = {
|
||||
.tx_buf = ®addr,
|
||||
.len = sizeof(regaddr),
|
||||
};
|
||||
struct spi_transfer t_msg = {
|
||||
.tx_buf = src,
|
||||
.len = count,
|
||||
};
|
||||
struct spi_message m;
|
||||
|
||||
regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
|
||||
regaddr &= SET_WRITE;
|
||||
regaddr |= (count>>1);
|
||||
regaddr = cpu_to_le16(regaddr);
|
||||
|
||||
#ifdef SPI_DEBUG
|
||||
pr_info("WRITE: %04d to 0x%02x (%04x)\n", count, addr,
|
||||
le16_to_cpu(regaddr));
|
||||
#endif
|
||||
|
||||
#if defined(__LITTLE_ENDIAN)
|
||||
/* We have to byteswap if the SPI bus is limited to 8b operation */
|
||||
if (self->func->bits_per_word == 8)
|
||||
#endif
|
||||
{
|
||||
uint16_t *buf = (uint16_t *)src;
|
||||
regaddr = swab16(regaddr);
|
||||
for (i = 0; i < ((count + 1) >> 1); i++)
|
||||
buf[i] = swab16(buf[i]);
|
||||
}
|
||||
|
||||
#ifdef SPI_DEBUG
|
||||
pr_info("WRITE: ");
|
||||
for (i = 0; i < t_addr.len; i++)
|
||||
printk("%02x ", ((u8 *)t_addr.tx_buf)[i]);
|
||||
printk(" : ");
|
||||
for (i = 0; i < t_msg.len; i++)
|
||||
printk("%02x ", ((u8 *)t_msg.tx_buf)[i]);
|
||||
printk("\n");
|
||||
#endif
|
||||
|
||||
spi_message_init(&m);
|
||||
spi_message_add_tail(&t_addr, &m);
|
||||
spi_message_add_tail(&t_msg, &m);
|
||||
rval = spi_sync(self->func, &m);
|
||||
|
||||
#ifdef SPI_DEBUG
|
||||
pr_info("WROTE: %d\n", m.actual_length);
|
||||
#endif
|
||||
|
||||
#if defined(__LITTLE_ENDIAN)
|
||||
/* We have to byteswap if the SPI bus is limited to 8b operation */
|
||||
if (self->func->bits_per_word == 8)
|
||||
#endif
|
||||
{
|
||||
uint16_t *buf = (uint16_t *)src;
|
||||
for (i = 0; i < ((count + 1) >> 1); i++)
|
||||
buf[i] = swab16(buf[i]);
|
||||
}
|
||||
return rval;
|
||||
}
|
||||
|
||||
static void cw1200_spi_lock(struct sbus_priv *self)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
might_sleep();
|
||||
|
||||
spin_lock_irqsave(&self->lock, flags);
|
||||
while (1) {
|
||||
set_current_state(TASK_UNINTERRUPTIBLE);
|
||||
if (!self->claimed)
|
||||
break;
|
||||
spin_unlock_irqrestore(&self->lock, flags);
|
||||
schedule();
|
||||
spin_lock_irqsave(&self->lock, flags);
|
||||
}
|
||||
set_current_state(TASK_RUNNING);
|
||||
self->claimed = 1;
|
||||
spin_unlock_irqrestore(&self->lock, flags);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
static void cw1200_spi_unlock(struct sbus_priv *self)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&self->lock, flags);
|
||||
self->claimed = 0;
|
||||
spin_unlock_irqrestore(&self->lock, flags);
|
||||
return;
|
||||
}
|
||||
|
||||
static irqreturn_t cw1200_spi_irq_handler(int irq, void *dev_id)
|
||||
{
|
||||
struct sbus_priv *self = dev_id;
|
||||
|
||||
if (self->core) {
|
||||
cw1200_irq_handler(self->core);
|
||||
return IRQ_HANDLED;
|
||||
} else {
|
||||
return IRQ_NONE;
|
||||
}
|
||||
}
|
||||
|
||||
static int cw1200_spi_irq_subscribe(struct sbus_priv *self)
|
||||
{
|
||||
int ret;
|
||||
|
||||
pr_debug("SW IRQ subscribe\n");
|
||||
|
||||
ret = request_any_context_irq(self->func->irq, cw1200_spi_irq_handler,
|
||||
IRQF_TRIGGER_HIGH,
|
||||
"cw1200_wlan_irq", self);
|
||||
if (WARN_ON(ret < 0))
|
||||
goto exit;
|
||||
|
||||
ret = enable_irq_wake(self->func->irq);
|
||||
if (WARN_ON(ret))
|
||||
goto free_irq;
|
||||
|
||||
return 0;
|
||||
|
||||
free_irq:
|
||||
free_irq(self->func->irq, self);
|
||||
exit:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cw1200_spi_irq_unsubscribe(struct sbus_priv *self)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
pr_debug("SW IRQ unsubscribe\n");
|
||||
disable_irq_wake(self->func->irq);
|
||||
free_irq(self->func->irq, self);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
|
||||
{
|
||||
const struct resource *reset = pdata->reset;
|
||||
|
||||
if (reset) {
|
||||
gpio_set_value(reset->start, 0);
|
||||
msleep(30); /* Min is 2 * CLK32K cycles */
|
||||
gpio_free(reset->start);
|
||||
}
|
||||
|
||||
if (pdata->power_ctrl)
|
||||
pdata->power_ctrl(pdata, false);
|
||||
if (pdata->clk_ctrl)
|
||||
pdata->clk_ctrl(pdata, false);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
|
||||
{
|
||||
const struct resource *reset = pdata->reset;
|
||||
const struct resource *powerup = pdata->reset;
|
||||
|
||||
/* Ensure I/Os are pulled low */
|
||||
if (reset) {
|
||||
gpio_request(reset->start, reset->name);
|
||||
gpio_direction_output(reset->start, 0);
|
||||
}
|
||||
if (powerup) {
|
||||
gpio_request(powerup->start, powerup->name);
|
||||
gpio_direction_output(powerup->start, 0);
|
||||
}
|
||||
if (reset || powerup)
|
||||
msleep(10); /* Settle time? */
|
||||
|
||||
/* Enable 3v3 and 1v8 to hardware */
|
||||
if (pdata->power_ctrl) {
|
||||
if (pdata->power_ctrl(pdata, true)) {
|
||||
pr_err("power_ctrl() failed!\n");
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Enable CLK32K */
|
||||
if (pdata->clk_ctrl) {
|
||||
if (pdata->clk_ctrl(pdata, true)) {
|
||||
pr_err("clk_ctrl() failed!\n");
|
||||
return -1;
|
||||
}
|
||||
msleep(10); /* Delay until clock is stable for 2 cycles */
|
||||
}
|
||||
|
||||
/* Enable POWERUP signal */
|
||||
if (powerup) {
|
||||
gpio_set_value(powerup->start, 1);
|
||||
msleep(250); /* or more..? */
|
||||
}
|
||||
/* Enable RSTn signal */
|
||||
if (reset) {
|
||||
gpio_set_value(reset->start, 1);
|
||||
msleep(50); /* Or more..? */
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static size_t cw1200_spi_align_size(struct sbus_priv *self, size_t size)
|
||||
{
|
||||
return size & 1 ? size + 1 : size;
|
||||
}
|
||||
|
||||
static int cw1200_spi_pm(struct sbus_priv *self, bool suspend)
|
||||
{
|
||||
return irq_set_irq_wake(self->func->irq, suspend);
|
||||
}
|
||||
|
||||
static struct sbus_ops cw1200_spi_sbus_ops = {
|
||||
.sbus_memcpy_fromio = cw1200_spi_memcpy_fromio,
|
||||
.sbus_memcpy_toio = cw1200_spi_memcpy_toio,
|
||||
.lock = cw1200_spi_lock,
|
||||
.unlock = cw1200_spi_unlock,
|
||||
.align_size = cw1200_spi_align_size,
|
||||
.power_mgmt = cw1200_spi_pm,
|
||||
};
|
||||
|
||||
/* Probe Function to be called by SPI stack when device is discovered */
|
||||
static int cw1200_spi_probe(struct spi_device *func)
|
||||
{
|
||||
const struct cw1200_platform_data_spi *plat_data =
|
||||
func->dev.platform_data;
|
||||
struct sbus_priv *self;
|
||||
int status;
|
||||
|
||||
/* Sanity check speed */
|
||||
if (func->max_speed_hz > 52000000)
|
||||
func->max_speed_hz = 52000000;
|
||||
if (func->max_speed_hz < 1000000)
|
||||
func->max_speed_hz = 1000000;
|
||||
|
||||
/* Fix up transfer size */
|
||||
if (plat_data->spi_bits_per_word)
|
||||
func->bits_per_word = plat_data->spi_bits_per_word;
|
||||
if (!func->bits_per_word)
|
||||
func->bits_per_word = 16;
|
||||
|
||||
/* And finally.. */
|
||||
func->mode = SPI_MODE_0;
|
||||
|
||||
pr_info("cw1200_wlan_spi: Probe called (CS %d M %d BPW %d CLK %d)\n",
|
||||
func->chip_select, func->mode, func->bits_per_word,
|
||||
func->max_speed_hz);
|
||||
|
||||
if (cw1200_spi_on(plat_data)) {
|
||||
pr_err("spi_on() failed!\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (spi_setup(func)) {
|
||||
pr_err("spi_setup() failed!\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
self = kzalloc(sizeof(*self), GFP_KERNEL);
|
||||
if (!self) {
|
||||
pr_err("Can't allocate SPI sbus_priv.");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
self->pdata = plat_data;
|
||||
self->func = func;
|
||||
spin_lock_init(&self->lock);
|
||||
|
||||
spi_set_drvdata(func, self);
|
||||
|
||||
status = cw1200_spi_irq_subscribe(self);
|
||||
|
||||
status = cw1200_core_probe(&cw1200_spi_sbus_ops,
|
||||
self, &func->dev, &self->core,
|
||||
self->pdata->ref_clk,
|
||||
self->pdata->macaddr,
|
||||
self->pdata->sdd_file,
|
||||
self->pdata->have_5ghz);
|
||||
|
||||
if (status) {
|
||||
cw1200_spi_irq_unsubscribe(self);
|
||||
cw1200_spi_off(plat_data);
|
||||
kfree(self);
|
||||
}
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
/* Disconnect Function to be called by SPI stack when device is disconnected */
|
||||
static int cw1200_spi_disconnect(struct spi_device *func)
|
||||
{
|
||||
struct sbus_priv *self = spi_get_drvdata(func);
|
||||
|
||||
if (self) {
|
||||
cw1200_spi_irq_unsubscribe(self);
|
||||
if (self->core) {
|
||||
cw1200_core_release(self->core);
|
||||
self->core = NULL;
|
||||
}
|
||||
kfree(self);
|
||||
}
|
||||
cw1200_spi_off(func->dev.platform_data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_spi_suspend(struct device *dev, pm_message_t state)
|
||||
{
|
||||
struct sbus_priv *self = spi_get_drvdata(to_spi_device(dev));
|
||||
|
||||
if (!cw1200_can_suspend(self->core))
|
||||
return -EAGAIN;
|
||||
|
||||
/* XXX notify host that we have to keep CW1200 powered on? */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_spi_resume(struct device *dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct spi_driver spi_driver = {
|
||||
.probe = cw1200_spi_probe,
|
||||
.remove = cw1200_spi_disconnect,
|
||||
.driver = {
|
||||
.name = "cw1200_wlan_spi",
|
||||
.bus = &spi_bus_type,
|
||||
.owner = THIS_MODULE,
|
||||
.suspend = cw1200_spi_suspend,
|
||||
.resume = cw1200_spi_resume,
|
||||
},
|
||||
};
|
||||
|
||||
/* Init Module function -> Called by insmod */
|
||||
static int __init cw1200_spi_init(void)
|
||||
{
|
||||
return spi_register_driver(&spi_driver);
|
||||
}
|
||||
|
||||
/* Called at Driver Unloading */
|
||||
static void __exit cw1200_spi_exit(void)
|
||||
{
|
||||
spi_unregister_driver(&spi_driver);
|
||||
}
|
||||
|
||||
module_init(cw1200_spi_init);
|
||||
module_exit(cw1200_spi_exit);
|
664
drivers/net/wireless/cw1200/debug.c
Normal file
664
drivers/net/wireless/cw1200/debug.c
Normal file
|
@ -0,0 +1,664 @@
|
|||
/*
|
||||
* mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
|
||||
* DebugFS code
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/debugfs.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include "cw1200.h"
|
||||
#include "debug.h"
|
||||
#include "fwio.h"
|
||||
|
||||
/* join_status */
|
||||
static const char * const cw1200_debug_join_status[] = {
|
||||
"passive",
|
||||
"monitor",
|
||||
"station (joining)",
|
||||
"station (not authenticated yet)",
|
||||
"station",
|
||||
"adhoc",
|
||||
"access point",
|
||||
};
|
||||
|
||||
/* WSM_JOIN_PREAMBLE_... */
|
||||
static const char * const cw1200_debug_preamble[] = {
|
||||
"long",
|
||||
"short",
|
||||
"long on 1 and 2 Mbps",
|
||||
};
|
||||
|
||||
|
||||
static const char * const cw1200_debug_link_id[] = {
|
||||
"OFF",
|
||||
"REQ",
|
||||
"SOFT",
|
||||
"HARD",
|
||||
};
|
||||
|
||||
static const char *cw1200_debug_mode(int mode)
|
||||
{
|
||||
switch (mode) {
|
||||
case NL80211_IFTYPE_UNSPECIFIED:
|
||||
return "unspecified";
|
||||
case NL80211_IFTYPE_MONITOR:
|
||||
return "monitor";
|
||||
case NL80211_IFTYPE_STATION:
|
||||
return "station";
|
||||
case NL80211_IFTYPE_ADHOC:
|
||||
return "adhoc";
|
||||
case NL80211_IFTYPE_MESH_POINT:
|
||||
return "mesh point";
|
||||
case NL80211_IFTYPE_AP:
|
||||
return "access point";
|
||||
case NL80211_IFTYPE_P2P_CLIENT:
|
||||
return "p2p client";
|
||||
case NL80211_IFTYPE_P2P_GO:
|
||||
return "p2p go";
|
||||
default:
|
||||
return "unsupported";
|
||||
}
|
||||
}
|
||||
|
||||
static void cw1200_queue_status_show(struct seq_file *seq,
|
||||
struct cw1200_queue *q)
|
||||
{
|
||||
int i;
|
||||
seq_printf(seq, "Queue %d:\n", q->queue_id);
|
||||
seq_printf(seq, " capacity: %zu\n", q->capacity);
|
||||
seq_printf(seq, " queued: %zu\n", q->num_queued);
|
||||
seq_printf(seq, " pending: %zu\n", q->num_pending);
|
||||
seq_printf(seq, " sent: %zu\n", q->num_sent);
|
||||
seq_printf(seq, " locked: %s\n", q->tx_locked_cnt ? "yes" : "no");
|
||||
seq_printf(seq, " overfull: %s\n", q->overfull ? "yes" : "no");
|
||||
seq_puts(seq, " link map: 0-> ");
|
||||
for (i = 0; i < q->stats->map_capacity; ++i)
|
||||
seq_printf(seq, "%.2d ", q->link_map_cache[i]);
|
||||
seq_printf(seq, "<-%zu\n", q->stats->map_capacity);
|
||||
}
|
||||
|
||||
static void cw1200_debug_print_map(struct seq_file *seq,
|
||||
struct cw1200_common *priv,
|
||||
const char *label,
|
||||
u32 map)
|
||||
{
|
||||
int i;
|
||||
seq_printf(seq, "%s0-> ", label);
|
||||
for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i)
|
||||
seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : "..");
|
||||
seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1);
|
||||
}
|
||||
|
||||
static int cw1200_status_show(struct seq_file *seq, void *v)
|
||||
{
|
||||
int i;
|
||||
struct list_head *item;
|
||||
struct cw1200_common *priv = seq->private;
|
||||
struct cw1200_debug_priv *d = priv->debug;
|
||||
|
||||
seq_puts(seq, "CW1200 Wireless LAN driver status\n");
|
||||
seq_printf(seq, "Hardware: %d.%d\n",
|
||||
priv->wsm_caps.hw_id,
|
||||
priv->wsm_caps.hw_subid);
|
||||
seq_printf(seq, "Firmware: %s %d.%d\n",
|
||||
cw1200_fw_types[priv->wsm_caps.fw_type],
|
||||
priv->wsm_caps.fw_ver,
|
||||
priv->wsm_caps.fw_build);
|
||||
seq_printf(seq, "FW API: %d\n",
|
||||
priv->wsm_caps.fw_api);
|
||||
seq_printf(seq, "FW caps: 0x%.4X\n",
|
||||
priv->wsm_caps.fw_cap);
|
||||
seq_printf(seq, "FW label: '%s'\n",
|
||||
priv->wsm_caps.fw_label);
|
||||
seq_printf(seq, "Mode: %s%s\n",
|
||||
cw1200_debug_mode(priv->mode),
|
||||
priv->listening ? " (listening)" : "");
|
||||
seq_printf(seq, "Join state: %s\n",
|
||||
cw1200_debug_join_status[priv->join_status]);
|
||||
if (priv->channel)
|
||||
seq_printf(seq, "Channel: %d%s\n",
|
||||
priv->channel->hw_value,
|
||||
priv->channel_switch_in_progress ?
|
||||
" (switching)" : "");
|
||||
if (priv->rx_filter.promiscuous)
|
||||
seq_puts(seq, "Filter: promisc\n");
|
||||
else if (priv->rx_filter.fcs)
|
||||
seq_puts(seq, "Filter: fcs\n");
|
||||
if (priv->rx_filter.bssid)
|
||||
seq_puts(seq, "Filter: bssid\n");
|
||||
if (!priv->disable_beacon_filter)
|
||||
seq_puts(seq, "Filter: beacons\n");
|
||||
|
||||
if (priv->enable_beacon ||
|
||||
priv->mode == NL80211_IFTYPE_AP ||
|
||||
priv->mode == NL80211_IFTYPE_ADHOC ||
|
||||
priv->mode == NL80211_IFTYPE_MESH_POINT ||
|
||||
priv->mode == NL80211_IFTYPE_P2P_GO)
|
||||
seq_printf(seq, "Beaconing: %s\n",
|
||||
priv->enable_beacon ?
|
||||
"enabled" : "disabled");
|
||||
|
||||
for (i = 0; i < 4; ++i)
|
||||
seq_printf(seq, "EDCA(%d): %d, %d, %d, %d, %d\n", i,
|
||||
priv->edca.params[i].cwmin,
|
||||
priv->edca.params[i].cwmax,
|
||||
priv->edca.params[i].aifns,
|
||||
priv->edca.params[i].txop_limit,
|
||||
priv->edca.params[i].max_rx_lifetime);
|
||||
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_STA) {
|
||||
static const char *pm_mode = "unknown";
|
||||
switch (priv->powersave_mode.mode) {
|
||||
case WSM_PSM_ACTIVE:
|
||||
pm_mode = "off";
|
||||
break;
|
||||
case WSM_PSM_PS:
|
||||
pm_mode = "on";
|
||||
break;
|
||||
case WSM_PSM_FAST_PS:
|
||||
pm_mode = "dynamic";
|
||||
break;
|
||||
}
|
||||
seq_printf(seq, "Preamble: %s\n",
|
||||
cw1200_debug_preamble[priv->association_mode.preamble]);
|
||||
seq_printf(seq, "AMPDU spcn: %d\n",
|
||||
priv->association_mode.mpdu_start_spacing);
|
||||
seq_printf(seq, "Basic rate: 0x%.8X\n",
|
||||
le32_to_cpu(priv->association_mode.basic_rate_set));
|
||||
seq_printf(seq, "Bss lost: %d beacons\n",
|
||||
priv->bss_params.beacon_lost_count);
|
||||
seq_printf(seq, "AID: %d\n",
|
||||
priv->bss_params.aid);
|
||||
seq_printf(seq, "Rates: 0x%.8X\n",
|
||||
priv->bss_params.operational_rate_set);
|
||||
seq_printf(seq, "Powersave: %s\n", pm_mode);
|
||||
}
|
||||
seq_printf(seq, "HT: %s\n",
|
||||
cw1200_is_ht(&priv->ht_info) ? "on" : "off");
|
||||
if (cw1200_is_ht(&priv->ht_info)) {
|
||||
seq_printf(seq, "Greenfield: %s\n",
|
||||
cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no");
|
||||
seq_printf(seq, "AMPDU dens: %d\n",
|
||||
cw1200_ht_ampdu_density(&priv->ht_info));
|
||||
}
|
||||
seq_printf(seq, "RSSI thold: %d\n",
|
||||
priv->cqm_rssi_thold);
|
||||
seq_printf(seq, "RSSI hyst: %d\n",
|
||||
priv->cqm_rssi_hyst);
|
||||
seq_printf(seq, "Long retr: %d\n",
|
||||
priv->long_frame_max_tx_count);
|
||||
seq_printf(seq, "Short retr: %d\n",
|
||||
priv->short_frame_max_tx_count);
|
||||
spin_lock_bh(&priv->tx_policy_cache.lock);
|
||||
i = 0;
|
||||
list_for_each(item, &priv->tx_policy_cache.used)
|
||||
++i;
|
||||
spin_unlock_bh(&priv->tx_policy_cache.lock);
|
||||
seq_printf(seq, "RC in use: %d\n", i);
|
||||
|
||||
seq_puts(seq, "\n");
|
||||
for (i = 0; i < 4; ++i) {
|
||||
cw1200_queue_status_show(seq, &priv->tx_queue[i]);
|
||||
seq_puts(seq, "\n");
|
||||
}
|
||||
|
||||
cw1200_debug_print_map(seq, priv, "Link map: ",
|
||||
priv->link_id_map);
|
||||
cw1200_debug_print_map(seq, priv, "Asleep map: ",
|
||||
priv->sta_asleep_mask);
|
||||
cw1200_debug_print_map(seq, priv, "PSPOLL map: ",
|
||||
priv->pspoll_mask);
|
||||
|
||||
seq_puts(seq, "\n");
|
||||
|
||||
for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
|
||||
if (priv->link_id_db[i].status) {
|
||||
seq_printf(seq, "Link %d: %s, %pM\n",
|
||||
i + 1,
|
||||
cw1200_debug_link_id[priv->link_id_db[i].status],
|
||||
priv->link_id_db[i].mac);
|
||||
}
|
||||
}
|
||||
|
||||
seq_puts(seq, "\n");
|
||||
|
||||
seq_printf(seq, "BH status: %s\n",
|
||||
atomic_read(&priv->bh_term) ? "terminated" : "alive");
|
||||
seq_printf(seq, "Pending RX: %d\n",
|
||||
atomic_read(&priv->bh_rx));
|
||||
seq_printf(seq, "Pending TX: %d\n",
|
||||
atomic_read(&priv->bh_tx));
|
||||
if (priv->bh_error)
|
||||
seq_printf(seq, "BH errcode: %d\n",
|
||||
priv->bh_error);
|
||||
seq_printf(seq, "TX bufs: %d x %d bytes\n",
|
||||
priv->wsm_caps.input_buffers,
|
||||
priv->wsm_caps.input_buffer_size);
|
||||
seq_printf(seq, "Used bufs: %d\n",
|
||||
priv->hw_bufs_used);
|
||||
seq_printf(seq, "Powermgmt: %s\n",
|
||||
priv->powersave_enabled ? "on" : "off");
|
||||
seq_printf(seq, "Device: %s\n",
|
||||
priv->device_can_sleep ? "asleep" : "awake");
|
||||
|
||||
spin_lock(&priv->wsm_cmd.lock);
|
||||
seq_printf(seq, "WSM status: %s\n",
|
||||
priv->wsm_cmd.done ? "idle" : "active");
|
||||
seq_printf(seq, "WSM cmd: 0x%.4X (%td bytes)\n",
|
||||
priv->wsm_cmd.cmd, priv->wsm_cmd.len);
|
||||
seq_printf(seq, "WSM retval: %d\n",
|
||||
priv->wsm_cmd.ret);
|
||||
spin_unlock(&priv->wsm_cmd.lock);
|
||||
|
||||
seq_printf(seq, "Datapath: %s\n",
|
||||
atomic_read(&priv->tx_lock) ? "locked" : "unlocked");
|
||||
if (atomic_read(&priv->tx_lock))
|
||||
seq_printf(seq, "TXlock cnt: %d\n",
|
||||
atomic_read(&priv->tx_lock));
|
||||
|
||||
seq_printf(seq, "TXed: %d\n",
|
||||
d->tx);
|
||||
seq_printf(seq, "AGG TXed: %d\n",
|
||||
d->tx_agg);
|
||||
seq_printf(seq, "MULTI TXed: %d (%d)\n",
|
||||
d->tx_multi, d->tx_multi_frames);
|
||||
seq_printf(seq, "RXed: %d\n",
|
||||
d->rx);
|
||||
seq_printf(seq, "AGG RXed: %d\n",
|
||||
d->rx_agg);
|
||||
seq_printf(seq, "TX miss: %d\n",
|
||||
d->tx_cache_miss);
|
||||
seq_printf(seq, "TX align: %d\n",
|
||||
d->tx_align);
|
||||
seq_printf(seq, "TX burst: %d\n",
|
||||
d->tx_burst);
|
||||
seq_printf(seq, "TX TTL: %d\n",
|
||||
d->tx_ttl);
|
||||
seq_printf(seq, "Scan: %s\n",
|
||||
atomic_read(&priv->scan.in_progress) ? "active" : "idle");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_status_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
return single_open(file, &cw1200_status_show,
|
||||
inode->i_private);
|
||||
}
|
||||
|
||||
static const struct file_operations fops_status = {
|
||||
.open = cw1200_status_open,
|
||||
.read = seq_read,
|
||||
.llseek = seq_lseek,
|
||||
.release = single_release,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static int cw1200_counters_show(struct seq_file *seq, void *v)
|
||||
{
|
||||
int ret;
|
||||
struct cw1200_common *priv = seq->private;
|
||||
struct wsm_mib_counters_table counters;
|
||||
|
||||
ret = wsm_get_counters_table(priv, &counters);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
#define PUT_COUNTER(tab, name) \
|
||||
seq_printf(seq, "%s:" tab "%d\n", #name, \
|
||||
__le32_to_cpu(counters.name))
|
||||
|
||||
PUT_COUNTER("\t\t", plcp_errors);
|
||||
PUT_COUNTER("\t\t", fcs_errors);
|
||||
PUT_COUNTER("\t\t", tx_packets);
|
||||
PUT_COUNTER("\t\t", rx_packets);
|
||||
PUT_COUNTER("\t\t", rx_packet_errors);
|
||||
PUT_COUNTER("\t", rx_decryption_failures);
|
||||
PUT_COUNTER("\t\t", rx_mic_failures);
|
||||
PUT_COUNTER("\t", rx_no_key_failures);
|
||||
PUT_COUNTER("\t", tx_multicast_frames);
|
||||
PUT_COUNTER("\t", tx_frames_success);
|
||||
PUT_COUNTER("\t", tx_frame_failures);
|
||||
PUT_COUNTER("\t", tx_frames_retried);
|
||||
PUT_COUNTER("\t", tx_frames_multi_retried);
|
||||
PUT_COUNTER("\t", rx_frame_duplicates);
|
||||
PUT_COUNTER("\t\t", rts_success);
|
||||
PUT_COUNTER("\t\t", rts_failures);
|
||||
PUT_COUNTER("\t\t", ack_failures);
|
||||
PUT_COUNTER("\t", rx_multicast_frames);
|
||||
PUT_COUNTER("\t", rx_frames_success);
|
||||
PUT_COUNTER("\t", rx_cmac_icv_errors);
|
||||
PUT_COUNTER("\t\t", rx_cmac_replays);
|
||||
PUT_COUNTER("\t", rx_mgmt_ccmp_replays);
|
||||
|
||||
#undef PUT_COUNTER
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_counters_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
return single_open(file, &cw1200_counters_show,
|
||||
inode->i_private);
|
||||
}
|
||||
|
||||
static const struct file_operations fops_counters = {
|
||||
.open = cw1200_counters_open,
|
||||
.read = seq_read,
|
||||
.llseek = seq_lseek,
|
||||
.release = single_release,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static int cw1200_generic_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
file->private_data = inode->i_private;
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
static int cw1200_etf_out_show(struct seq_file *seq, void *v)
|
||||
{
|
||||
struct cw1200_common *priv = seq->private;
|
||||
struct sk_buff *skb;
|
||||
u32 len = 0;
|
||||
|
||||
skb = skb_dequeue(&priv->etf_q);
|
||||
|
||||
if (skb)
|
||||
len = skb->len;
|
||||
|
||||
seq_write(seq, &len, sizeof(len));
|
||||
|
||||
if (skb) {
|
||||
seq_write(seq, skb->data, len);
|
||||
kfree_skb(skb);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_etf_out_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
return single_open(file, &cw1200_etf_out_show,
|
||||
inode->i_private);
|
||||
}
|
||||
|
||||
static const struct file_operations fops_etf_out = {
|
||||
.open = cw1200_etf_out_open,
|
||||
.read = seq_read,
|
||||
.llseek = seq_lseek,
|
||||
.release = single_release,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
struct etf_req_msg;
|
||||
static int etf_request(struct cw1200_common *priv,
|
||||
struct etf_req_msg *msg, u32 len);
|
||||
|
||||
#define MAX_RX_SZE 2600
|
||||
|
||||
struct etf_in_state {
|
||||
struct cw1200_common *priv;
|
||||
u32 total_len;
|
||||
u8 buf[MAX_RX_SZE];
|
||||
u32 written;
|
||||
};
|
||||
|
||||
static int cw1200_etf_in_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct etf_in_state *etf = kmalloc(sizeof(struct etf_in_state),
|
||||
GFP_KERNEL);
|
||||
|
||||
if (!etf)
|
||||
return -ENOMEM;
|
||||
|
||||
etf->written = 0;
|
||||
etf->total_len = 0;
|
||||
etf->priv = inode->i_private;
|
||||
|
||||
file->private_data = etf;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cw1200_etf_in_release(struct inode *inode, struct file *file)
|
||||
{
|
||||
kfree(file->private_data);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static ssize_t cw1200_etf_in_write(struct file *file,
|
||||
const char __user *user_buf, size_t count, loff_t *ppos)
|
||||
{
|
||||
struct etf_in_state *etf = file->private_data;
|
||||
|
||||
ssize_t written = 0;
|
||||
|
||||
if (!etf->total_len) {
|
||||
if (count < sizeof(etf->total_len)) {
|
||||
pr_err("count < sizeof(total_len)\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (copy_from_user(&etf->total_len, user_buf,
|
||||
sizeof(etf->total_len))) {
|
||||
pr_err("copy_from_user (len) failed\n");
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
written += sizeof(etf->total_len);
|
||||
count -= sizeof(etf->total_len);
|
||||
}
|
||||
|
||||
if (!count)
|
||||
goto done;
|
||||
|
||||
if (copy_from_user(etf->buf + etf->written, user_buf + written,
|
||||
count)) {
|
||||
pr_err("copy_from_user (payload %zu) failed\n", count);
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
written += count;
|
||||
etf->written += count;
|
||||
|
||||
if (etf->written >= etf->total_len) {
|
||||
if (etf_request(etf->priv, (struct etf_req_msg *)etf->buf,
|
||||
etf->total_len)) {
|
||||
pr_err("etf_request failed\n");
|
||||
return -EIO;
|
||||
}
|
||||
}
|
||||
|
||||
done:
|
||||
return written;
|
||||
}
|
||||
|
||||
static const struct file_operations fops_etf_in = {
|
||||
.open = cw1200_etf_in_open,
|
||||
.release = cw1200_etf_in_release,
|
||||
.write = cw1200_etf_in_write,
|
||||
.llseek = default_llseek,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
#endif /* CONFIG_CW1200_ETF */
|
||||
|
||||
static ssize_t cw1200_wsm_dumps(struct file *file,
|
||||
const char __user *user_buf, size_t count, loff_t *ppos)
|
||||
{
|
||||
struct cw1200_common *priv = file->private_data;
|
||||
char buf[1];
|
||||
|
||||
if (!count)
|
||||
return -EINVAL;
|
||||
if (copy_from_user(buf, user_buf, 1))
|
||||
return -EFAULT;
|
||||
|
||||
if (buf[0] == '1')
|
||||
priv->wsm_enable_wsm_dumps = 1;
|
||||
else
|
||||
priv->wsm_enable_wsm_dumps = 0;
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
static const struct file_operations fops_wsm_dumps = {
|
||||
.open = cw1200_generic_open,
|
||||
.write = cw1200_wsm_dumps,
|
||||
.llseek = default_llseek,
|
||||
};
|
||||
|
||||
int cw1200_debug_init(struct cw1200_common *priv)
|
||||
{
|
||||
int ret = -ENOMEM;
|
||||
struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv),
|
||||
GFP_KERNEL);
|
||||
priv->debug = d;
|
||||
if (!d)
|
||||
return ret;
|
||||
|
||||
d->debugfs_phy = debugfs_create_dir("cw1200",
|
||||
priv->hw->wiphy->debugfsdir);
|
||||
if (!d->debugfs_phy)
|
||||
goto err;
|
||||
|
||||
if (!debugfs_create_file("status", S_IRUSR, d->debugfs_phy,
|
||||
priv, &fops_status))
|
||||
goto err;
|
||||
|
||||
if (!debugfs_create_file("counters", S_IRUSR, d->debugfs_phy,
|
||||
priv, &fops_counters))
|
||||
goto err;
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
if (etf_mode) {
|
||||
skb_queue_head_init(&priv->etf_q);
|
||||
|
||||
if (!debugfs_create_file("etf_out", S_IRUSR, d->debugfs_phy,
|
||||
priv, &fops_etf_out))
|
||||
goto err;
|
||||
if (!debugfs_create_file("etf_in", S_IWUSR, d->debugfs_phy,
|
||||
priv, &fops_etf_in))
|
||||
goto err;
|
||||
}
|
||||
#endif /* CONFIG_CW1200_ETF */
|
||||
|
||||
if (!debugfs_create_file("wsm_dumps", S_IWUSR, d->debugfs_phy,
|
||||
priv, &fops_wsm_dumps))
|
||||
goto err;
|
||||
|
||||
ret = cw1200_itp_init(priv);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
return 0;
|
||||
|
||||
err:
|
||||
priv->debug = NULL;
|
||||
debugfs_remove_recursive(d->debugfs_phy);
|
||||
kfree(d);
|
||||
return ret;
|
||||
}
|
||||
|
||||
void cw1200_debug_release(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_debug_priv *d = priv->debug;
|
||||
if (d) {
|
||||
cw1200_itp_release(priv);
|
||||
priv->debug = NULL;
|
||||
kfree(d);
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
struct cw1200_sdd {
|
||||
u8 id;
|
||||
u8 len;
|
||||
u8 data[];
|
||||
};
|
||||
|
||||
struct etf_req_msg {
|
||||
u32 id;
|
||||
u32 len;
|
||||
u8 data[];
|
||||
};
|
||||
|
||||
static int parse_sdd_file(struct cw1200_common *priv, u8 *data, u32 length)
|
||||
{
|
||||
struct cw1200_sdd *ie;
|
||||
|
||||
while (length > 0) {
|
||||
ie = (struct cw1200_sdd *)data;
|
||||
if (ie->id == SDD_REFERENCE_FREQUENCY_ELT_ID) {
|
||||
priv->hw_refclk = cpu_to_le16(*((u16 *)ie->data));
|
||||
pr_info("Using Reference clock frequency %d KHz\n",
|
||||
priv->hw_refclk);
|
||||
break;
|
||||
}
|
||||
|
||||
length -= ie->len + sizeof(*ie);
|
||||
data += ie->len + sizeof(*ie);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
char *etf_firmware;
|
||||
|
||||
#define ST90TDS_START_ADAPTER 0x09 /* Loads firmware too */
|
||||
#define ST90TDS_STOP_ADAPTER 0x0A
|
||||
#define ST90TDS_CONFIG_ADAPTER 0x0E /* Send configuration params */
|
||||
#define ST90TDS_SBUS_READ 0x13
|
||||
#define ST90TDS_SBUS_WRITE 0x14
|
||||
#define ST90TDS_GET_DEVICE_OPTION 0x19
|
||||
#define ST90TDS_SET_DEVICE_OPTION 0x1A
|
||||
#define ST90TDS_SEND_SDD 0x1D /* SDD File used to find DPLL */
|
||||
|
||||
#include "fwio.h"
|
||||
|
||||
static int etf_request(struct cw1200_common *priv,
|
||||
struct etf_req_msg *msg,
|
||||
u32 len)
|
||||
{
|
||||
int rval = -1;
|
||||
switch (msg->id) {
|
||||
case ST90TDS_START_ADAPTER:
|
||||
etf_firmware = "cw1200_etf.bin";
|
||||
pr_info("ETF_START (len %d, '%s')\n", len, etf_firmware);
|
||||
rval = cw1200_load_firmware(priv);
|
||||
break;
|
||||
case ST90TDS_STOP_ADAPTER:
|
||||
pr_info("ETF_STOP (unhandled)\n");
|
||||
break;
|
||||
case ST90TDS_SEND_SDD:
|
||||
pr_info("ETF_SDD\n");
|
||||
rval = parse_sdd_file(priv, msg->data, msg->len);
|
||||
break;
|
||||
case ST90TDS_CONFIG_ADAPTER:
|
||||
pr_info("ETF_CONFIG_ADAP (unhandled)\n");
|
||||
break;
|
||||
case ST90TDS_SBUS_READ:
|
||||
pr_info("ETF_SBUS_READ (unhandled)\n");
|
||||
break;
|
||||
case ST90TDS_SBUS_WRITE:
|
||||
pr_info("ETF_SBUS_WRITE (unhandled)\n");
|
||||
break;
|
||||
case ST90TDS_SET_DEVICE_OPTION:
|
||||
pr_info("ETF_SET_DEV_OPT (unhandled)\n");
|
||||
break;
|
||||
default:
|
||||
pr_info("ETF_PASSTHRU (0x%08x)\n", msg->id);
|
||||
rval = wsm_raw_cmd(priv, (u8 *)msg, len);
|
||||
break;
|
||||
}
|
||||
|
||||
return rval;
|
||||
}
|
||||
#endif /* CONFIG_CW1200_ETF */
|
98
drivers/net/wireless/cw1200/debug.h
Normal file
98
drivers/net/wireless/cw1200/debug.h
Normal file
|
@ -0,0 +1,98 @@
|
|||
/*
|
||||
* DebugFS code for ST-Ericsson CW1200 mac80211 driver
|
||||
*
|
||||
* Copyright (c) 2011, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef CW1200_DEBUG_H_INCLUDED
|
||||
#define CW1200_DEBUG_H_INCLUDED
|
||||
|
||||
#include "itp.h"
|
||||
|
||||
struct cw1200_debug_priv {
|
||||
struct dentry *debugfs_phy;
|
||||
int tx;
|
||||
int tx_agg;
|
||||
int rx;
|
||||
int rx_agg;
|
||||
int tx_multi;
|
||||
int tx_multi_frames;
|
||||
int tx_cache_miss;
|
||||
int tx_align;
|
||||
int tx_ttl;
|
||||
int tx_burst;
|
||||
int ba_cnt;
|
||||
int ba_acc;
|
||||
int ba_cnt_rx;
|
||||
int ba_acc_rx;
|
||||
#ifdef CONFIG_CW1200_ITP
|
||||
struct cw1200_itp itp;
|
||||
#endif /* CONFIG_CW1200_ITP */
|
||||
};
|
||||
|
||||
int cw1200_debug_init(struct cw1200_common *priv);
|
||||
void cw1200_debug_release(struct cw1200_common *priv);
|
||||
|
||||
static inline void cw1200_debug_txed(struct cw1200_common *priv)
|
||||
{
|
||||
++priv->debug->tx;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_txed_agg(struct cw1200_common *priv)
|
||||
{
|
||||
++priv->debug->tx_agg;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_txed_multi(struct cw1200_common *priv,
|
||||
int count)
|
||||
{
|
||||
++priv->debug->tx_multi;
|
||||
priv->debug->tx_multi_frames += count;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_rxed(struct cw1200_common *priv)
|
||||
{
|
||||
++priv->debug->rx;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_rxed_agg(struct cw1200_common *priv)
|
||||
{
|
||||
++priv->debug->rx_agg;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_tx_cache_miss(struct cw1200_common *priv)
|
||||
{
|
||||
++priv->debug->tx_cache_miss;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_tx_align(struct cw1200_common *priv)
|
||||
{
|
||||
++priv->debug->tx_align;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_tx_ttl(struct cw1200_common *priv)
|
||||
{
|
||||
++priv->debug->tx_ttl;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_tx_burst(struct cw1200_common *priv)
|
||||
{
|
||||
++priv->debug->tx_burst;
|
||||
}
|
||||
|
||||
static inline void cw1200_debug_ba(struct cw1200_common *priv,
|
||||
int ba_cnt, int ba_acc,
|
||||
int ba_cnt_rx, int ba_acc_rx)
|
||||
{
|
||||
priv->debug->ba_cnt = ba_cnt;
|
||||
priv->debug->ba_acc = ba_acc;
|
||||
priv->debug->ba_cnt_rx = ba_cnt_rx;
|
||||
priv->debug->ba_acc_rx = ba_acc_rx;
|
||||
}
|
||||
|
||||
#endif /* CW1200_DEBUG_H_INCLUDED */
|
525
drivers/net/wireless/cw1200/fwio.c
Normal file
525
drivers/net/wireless/cw1200/fwio.c
Normal file
|
@ -0,0 +1,525 @@
|
|||
/*
|
||||
* Firmware I/O code for mac80211 ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* Based on:
|
||||
* ST-Ericsson UMAC CW1200 driver which is
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/vmalloc.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/firmware.h>
|
||||
|
||||
#include "cw1200.h"
|
||||
#include "fwio.h"
|
||||
#include "hwio.h"
|
||||
#include "sbus.h"
|
||||
#include "bh.h"
|
||||
|
||||
static int cw1200_get_hw_type(u32 config_reg_val, int *major_revision)
|
||||
{
|
||||
int hw_type = -1;
|
||||
u32 silicon_type = (config_reg_val >> 24) & 0x7;
|
||||
u32 silicon_vers = (config_reg_val >> 31) & 0x1;
|
||||
|
||||
switch (silicon_type) {
|
||||
case 0x00:
|
||||
*major_revision = 1;
|
||||
hw_type = HIF_9000_SILICON_VERSATILE;
|
||||
break;
|
||||
case 0x01:
|
||||
case 0x02: /* CW1x00 */
|
||||
case 0x04: /* CW1x60 */
|
||||
*major_revision = silicon_type;
|
||||
if (silicon_vers)
|
||||
hw_type = HIF_8601_VERSATILE;
|
||||
else
|
||||
hw_type = HIF_8601_SILICON;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return hw_type;
|
||||
}
|
||||
|
||||
static int cw1200_load_firmware_cw1200(struct cw1200_common *priv)
|
||||
{
|
||||
int ret, block, num_blocks;
|
||||
unsigned i;
|
||||
u32 val32;
|
||||
u32 put = 0, get = 0;
|
||||
u8 *buf = NULL;
|
||||
const char *fw_path;
|
||||
const struct firmware *firmware = NULL;
|
||||
|
||||
/* Macroses are local. */
|
||||
#define APB_WRITE(reg, val) \
|
||||
do { \
|
||||
ret = cw1200_apb_write_32(priv, CW1200_APB(reg), (val)); \
|
||||
if (ret < 0) \
|
||||
goto error; \
|
||||
} while (0)
|
||||
#define APB_READ(reg, val) \
|
||||
do { \
|
||||
ret = cw1200_apb_read_32(priv, CW1200_APB(reg), &(val)); \
|
||||
if (ret < 0) \
|
||||
goto error; \
|
||||
} while (0)
|
||||
#define REG_WRITE(reg, val) \
|
||||
do { \
|
||||
ret = cw1200_reg_write_32(priv, (reg), (val)); \
|
||||
if (ret < 0) \
|
||||
goto error; \
|
||||
} while (0)
|
||||
#define REG_READ(reg, val) \
|
||||
do { \
|
||||
ret = cw1200_reg_read_32(priv, (reg), &(val)); \
|
||||
if (ret < 0) \
|
||||
goto error; \
|
||||
} while (0)
|
||||
|
||||
switch (priv->hw_revision) {
|
||||
case CW1200_HW_REV_CUT10:
|
||||
fw_path = FIRMWARE_CUT10;
|
||||
if (!priv->sdd_path)
|
||||
priv->sdd_path = SDD_FILE_10;
|
||||
break;
|
||||
case CW1200_HW_REV_CUT11:
|
||||
fw_path = FIRMWARE_CUT11;
|
||||
if (!priv->sdd_path)
|
||||
priv->sdd_path = SDD_FILE_11;
|
||||
break;
|
||||
case CW1200_HW_REV_CUT20:
|
||||
fw_path = FIRMWARE_CUT20;
|
||||
if (!priv->sdd_path)
|
||||
priv->sdd_path = SDD_FILE_20;
|
||||
break;
|
||||
case CW1200_HW_REV_CUT22:
|
||||
fw_path = FIRMWARE_CUT22;
|
||||
if (!priv->sdd_path)
|
||||
priv->sdd_path = SDD_FILE_22;
|
||||
break;
|
||||
case CW1X60_HW_REV:
|
||||
fw_path = FIRMWARE_CW1X60;
|
||||
if (!priv->sdd_path)
|
||||
priv->sdd_path = SDD_FILE_CW1X60;
|
||||
break;
|
||||
default:
|
||||
pr_err("Invalid silicon revision %d.\n", priv->hw_revision);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Initialize common registers */
|
||||
APB_WRITE(DOWNLOAD_IMAGE_SIZE_REG, DOWNLOAD_ARE_YOU_HERE);
|
||||
APB_WRITE(DOWNLOAD_PUT_REG, 0);
|
||||
APB_WRITE(DOWNLOAD_GET_REG, 0);
|
||||
APB_WRITE(DOWNLOAD_STATUS_REG, DOWNLOAD_PENDING);
|
||||
APB_WRITE(DOWNLOAD_FLAGS_REG, 0);
|
||||
|
||||
/* Write the NOP Instruction */
|
||||
REG_WRITE(ST90TDS_SRAM_BASE_ADDR_REG_ID, 0xFFF20000);
|
||||
REG_WRITE(ST90TDS_AHB_DPORT_REG_ID, 0xEAFFFFFE);
|
||||
|
||||
/* Release CPU from RESET */
|
||||
REG_READ(ST90TDS_CONFIG_REG_ID, val32);
|
||||
val32 &= ~ST90TDS_CONFIG_CPU_RESET_BIT;
|
||||
REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
|
||||
|
||||
/* Enable Clock */
|
||||
val32 &= ~ST90TDS_CONFIG_CPU_CLK_DIS_BIT;
|
||||
REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
if (etf_mode)
|
||||
fw_path = etf_firmware;
|
||||
#endif
|
||||
|
||||
/* Load a firmware file */
|
||||
ret = request_firmware(&firmware, fw_path, priv->pdev);
|
||||
if (ret) {
|
||||
pr_err("Can't load firmware file %s.\n", fw_path);
|
||||
goto error;
|
||||
}
|
||||
|
||||
buf = kmalloc(DOWNLOAD_BLOCK_SIZE, GFP_KERNEL | GFP_DMA);
|
||||
if (!buf) {
|
||||
pr_err("Can't allocate firmware load buffer.\n");
|
||||
ret = -ENOMEM;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Check if the bootloader is ready */
|
||||
for (i = 0; i < 100; i += 1 + i / 2) {
|
||||
APB_READ(DOWNLOAD_IMAGE_SIZE_REG, val32);
|
||||
if (val32 == DOWNLOAD_I_AM_HERE)
|
||||
break;
|
||||
mdelay(i);
|
||||
} /* End of for loop */
|
||||
|
||||
if (val32 != DOWNLOAD_I_AM_HERE) {
|
||||
pr_err("Bootloader is not ready.\n");
|
||||
ret = -ETIMEDOUT;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Calculcate number of download blocks */
|
||||
num_blocks = (firmware->size - 1) / DOWNLOAD_BLOCK_SIZE + 1;
|
||||
|
||||
/* Updating the length in Download Ctrl Area */
|
||||
val32 = firmware->size; /* Explicit cast from size_t to u32 */
|
||||
APB_WRITE(DOWNLOAD_IMAGE_SIZE_REG, val32);
|
||||
|
||||
/* Firmware downloading loop */
|
||||
for (block = 0; block < num_blocks; block++) {
|
||||
size_t tx_size;
|
||||
size_t block_size;
|
||||
|
||||
/* check the download status */
|
||||
APB_READ(DOWNLOAD_STATUS_REG, val32);
|
||||
if (val32 != DOWNLOAD_PENDING) {
|
||||
pr_err("Bootloader reported error %d.\n", val32);
|
||||
ret = -EIO;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* loop until put - get <= 24K */
|
||||
for (i = 0; i < 100; i++) {
|
||||
APB_READ(DOWNLOAD_GET_REG, get);
|
||||
if ((put - get) <=
|
||||
(DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE))
|
||||
break;
|
||||
mdelay(i);
|
||||
}
|
||||
|
||||
if ((put - get) > (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE)) {
|
||||
pr_err("Timeout waiting for FIFO.\n");
|
||||
ret = -ETIMEDOUT;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* calculate the block size */
|
||||
tx_size = block_size = min((size_t)(firmware->size - put),
|
||||
(size_t)DOWNLOAD_BLOCK_SIZE);
|
||||
|
||||
memcpy(buf, &firmware->data[put], block_size);
|
||||
if (block_size < DOWNLOAD_BLOCK_SIZE) {
|
||||
memset(&buf[block_size], 0,
|
||||
DOWNLOAD_BLOCK_SIZE - block_size);
|
||||
tx_size = DOWNLOAD_BLOCK_SIZE;
|
||||
}
|
||||
|
||||
/* send the block to sram */
|
||||
ret = cw1200_apb_write(priv,
|
||||
CW1200_APB(DOWNLOAD_FIFO_OFFSET +
|
||||
(put & (DOWNLOAD_FIFO_SIZE - 1))),
|
||||
buf, tx_size);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write firmware block @ %d!\n",
|
||||
put & (DOWNLOAD_FIFO_SIZE - 1));
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* update the put register */
|
||||
put += block_size;
|
||||
APB_WRITE(DOWNLOAD_PUT_REG, put);
|
||||
} /* End of firmware download loop */
|
||||
|
||||
/* Wait for the download completion */
|
||||
for (i = 0; i < 300; i += 1 + i / 2) {
|
||||
APB_READ(DOWNLOAD_STATUS_REG, val32);
|
||||
if (val32 != DOWNLOAD_PENDING)
|
||||
break;
|
||||
mdelay(i);
|
||||
}
|
||||
if (val32 != DOWNLOAD_SUCCESS) {
|
||||
pr_err("Wait for download completion failed: 0x%.8X\n", val32);
|
||||
ret = -ETIMEDOUT;
|
||||
goto error;
|
||||
} else {
|
||||
pr_info("Firmware download completed.\n");
|
||||
ret = 0;
|
||||
}
|
||||
|
||||
error:
|
||||
kfree(buf);
|
||||
if (firmware)
|
||||
release_firmware(firmware);
|
||||
return ret;
|
||||
|
||||
#undef APB_WRITE
|
||||
#undef APB_READ
|
||||
#undef REG_WRITE
|
||||
#undef REG_READ
|
||||
}
|
||||
|
||||
|
||||
static int config_reg_read(struct cw1200_common *priv, u32 *val)
|
||||
{
|
||||
switch (priv->hw_type) {
|
||||
case HIF_9000_SILICON_VERSATILE: {
|
||||
u16 val16;
|
||||
int ret = cw1200_reg_read_16(priv,
|
||||
ST90TDS_CONFIG_REG_ID,
|
||||
&val16);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
*val = val16;
|
||||
return 0;
|
||||
}
|
||||
case HIF_8601_VERSATILE:
|
||||
case HIF_8601_SILICON:
|
||||
default:
|
||||
cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, val);
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int config_reg_write(struct cw1200_common *priv, u32 val)
|
||||
{
|
||||
switch (priv->hw_type) {
|
||||
case HIF_9000_SILICON_VERSATILE:
|
||||
return cw1200_reg_write_16(priv,
|
||||
ST90TDS_CONFIG_REG_ID,
|
||||
(u16)val);
|
||||
case HIF_8601_VERSATILE:
|
||||
case HIF_8601_SILICON:
|
||||
default:
|
||||
return cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val);
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cw1200_load_firmware(struct cw1200_common *priv)
|
||||
{
|
||||
int ret;
|
||||
int i;
|
||||
u32 val32;
|
||||
u16 val16;
|
||||
int major_revision = -1;
|
||||
|
||||
/* Read CONFIG Register */
|
||||
ret = cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't read config register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (val32 == 0 || val32 == 0xffffffff) {
|
||||
pr_err("Bad config register value (0x%08x)\n", val32);
|
||||
ret = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
priv->hw_type = cw1200_get_hw_type(val32, &major_revision);
|
||||
if (priv->hw_type < 0) {
|
||||
pr_err("Can't deduce hardware type.\n");
|
||||
ret = -ENOTSUPP;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Set DPLL Reg value, and read back to confirm writes work */
|
||||
ret = cw1200_reg_write_32(priv, ST90TDS_TSET_GEN_R_W_REG_ID,
|
||||
cw1200_dpll_from_clk(priv->hw_refclk));
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write DPLL register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
msleep(20);
|
||||
|
||||
ret = cw1200_reg_read_32(priv,
|
||||
ST90TDS_TSET_GEN_R_W_REG_ID, &val32);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't read DPLL register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (val32 != cw1200_dpll_from_clk(priv->hw_refclk)) {
|
||||
pr_err("Unable to initialise DPLL register. Wrote 0x%.8X, Read 0x%.8X.\n",
|
||||
cw1200_dpll_from_clk(priv->hw_refclk), val32);
|
||||
ret = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Set wakeup bit in device */
|
||||
ret = cw1200_reg_read_16(priv, ST90TDS_CONTROL_REG_ID, &val16);
|
||||
if (ret < 0) {
|
||||
pr_err("set_wakeup: can't read control register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID,
|
||||
val16 | ST90TDS_CONT_WUP_BIT);
|
||||
if (ret < 0) {
|
||||
pr_err("set_wakeup: can't write control register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Wait for wakeup */
|
||||
for (i = 0; i < 300; i += (1 + i / 2)) {
|
||||
ret = cw1200_reg_read_16(priv,
|
||||
ST90TDS_CONTROL_REG_ID, &val16);
|
||||
if (ret < 0) {
|
||||
pr_err("wait_for_wakeup: can't read control register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (val16 & ST90TDS_CONT_RDY_BIT)
|
||||
break;
|
||||
|
||||
msleep(i);
|
||||
}
|
||||
|
||||
if ((val16 & ST90TDS_CONT_RDY_BIT) == 0) {
|
||||
pr_err("wait_for_wakeup: device is not responding.\n");
|
||||
ret = -ETIMEDOUT;
|
||||
goto out;
|
||||
}
|
||||
|
||||
switch (major_revision) {
|
||||
case 1:
|
||||
/* CW1200 Hardware detection logic : Check for CUT1.1 */
|
||||
ret = cw1200_ahb_read_32(priv, CW1200_CUT_ID_ADDR, &val32);
|
||||
if (ret) {
|
||||
pr_err("HW detection: can't read CUT ID.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
switch (val32) {
|
||||
case CW1200_CUT_11_ID_STR:
|
||||
pr_info("CW1x00 Cut 1.1 silicon detected.\n");
|
||||
priv->hw_revision = CW1200_HW_REV_CUT11;
|
||||
break;
|
||||
default:
|
||||
pr_info("CW1x00 Cut 1.0 silicon detected.\n");
|
||||
priv->hw_revision = CW1200_HW_REV_CUT10;
|
||||
break;
|
||||
}
|
||||
|
||||
/* According to ST-E, CUT<2.0 has busted BA TID0-3.
|
||||
Just disable it entirely...
|
||||
*/
|
||||
priv->ba_rx_tid_mask = 0;
|
||||
priv->ba_tx_tid_mask = 0;
|
||||
break;
|
||||
case 2: {
|
||||
u32 ar1, ar2, ar3;
|
||||
ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR, &ar1);
|
||||
if (ret) {
|
||||
pr_err("(1) HW detection: can't read CUT ID\n");
|
||||
goto out;
|
||||
}
|
||||
ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR + 4, &ar2);
|
||||
if (ret) {
|
||||
pr_err("(2) HW detection: can't read CUT ID.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR + 8, &ar3);
|
||||
if (ret) {
|
||||
pr_err("(3) HW detection: can't read CUT ID.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (ar1 == CW1200_CUT_22_ID_STR1 &&
|
||||
ar2 == CW1200_CUT_22_ID_STR2 &&
|
||||
ar3 == CW1200_CUT_22_ID_STR3) {
|
||||
pr_info("CW1x00 Cut 2.2 silicon detected.\n");
|
||||
priv->hw_revision = CW1200_HW_REV_CUT22;
|
||||
} else {
|
||||
pr_info("CW1x00 Cut 2.0 silicon detected.\n");
|
||||
priv->hw_revision = CW1200_HW_REV_CUT20;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 4:
|
||||
pr_info("CW1x60 silicon detected.\n");
|
||||
priv->hw_revision = CW1X60_HW_REV;
|
||||
break;
|
||||
default:
|
||||
pr_err("Unsupported silicon major revision %d.\n",
|
||||
major_revision);
|
||||
ret = -ENOTSUPP;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Checking for access mode */
|
||||
ret = config_reg_read(priv, &val32);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't read config register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (!(val32 & ST90TDS_CONFIG_ACCESS_MODE_BIT)) {
|
||||
pr_err("Device is already in QUEUE mode!\n");
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
switch (priv->hw_type) {
|
||||
case HIF_8601_SILICON:
|
||||
if (priv->hw_revision == CW1X60_HW_REV) {
|
||||
pr_err("Can't handle CW1160/1260 firmware load yet.\n");
|
||||
ret = -ENOTSUPP;
|
||||
goto out;
|
||||
}
|
||||
ret = cw1200_load_firmware_cw1200(priv);
|
||||
break;
|
||||
default:
|
||||
pr_err("Can't perform firmware load for hw type %d.\n",
|
||||
priv->hw_type);
|
||||
ret = -ENOTSUPP;
|
||||
goto out;
|
||||
}
|
||||
if (ret < 0) {
|
||||
pr_err("Firmware load error.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Enable interrupt signalling */
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
ret = __cw1200_irq_enable(priv, 1);
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
if (ret < 0)
|
||||
goto unsubscribe;
|
||||
|
||||
/* Configure device for MESSSAGE MODE */
|
||||
ret = config_reg_read(priv, &val32);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't read config register.\n");
|
||||
goto unsubscribe;
|
||||
}
|
||||
ret = config_reg_write(priv, val32 & ~ST90TDS_CONFIG_ACCESS_MODE_BIT);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write config register.\n");
|
||||
goto unsubscribe;
|
||||
}
|
||||
|
||||
/* Unless we read the CONFIG Register we are
|
||||
* not able to get an interrupt
|
||||
*/
|
||||
mdelay(10);
|
||||
config_reg_read(priv, &val32);
|
||||
|
||||
out:
|
||||
return ret;
|
||||
|
||||
unsubscribe:
|
||||
/* Disable interrupt signalling */
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
ret = __cw1200_irq_enable(priv, 0);
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
return ret;
|
||||
}
|
39
drivers/net/wireless/cw1200/fwio.h
Normal file
39
drivers/net/wireless/cw1200/fwio.h
Normal file
|
@ -0,0 +1,39 @@
|
|||
/*
|
||||
* Firmware API for mac80211 ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* Based on:
|
||||
* ST-Ericsson UMAC CW1200 driver which is
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef FWIO_H_INCLUDED
|
||||
#define FWIO_H_INCLUDED
|
||||
|
||||
#define BOOTLOADER_CW1X60 "boot_cw1x60.bin"
|
||||
#define FIRMWARE_CW1X60 "wsm_cw1x60.bin"
|
||||
#define FIRMWARE_CUT22 "wsm_22.bin"
|
||||
#define FIRMWARE_CUT20 "wsm_20.bin"
|
||||
#define FIRMWARE_CUT11 "wsm_11.bin"
|
||||
#define FIRMWARE_CUT10 "wsm_10.bin"
|
||||
#define SDD_FILE_CW1X60 "sdd_cw1x60.bin"
|
||||
#define SDD_FILE_22 "sdd_22.bin"
|
||||
#define SDD_FILE_20 "sdd_20.bin"
|
||||
#define SDD_FILE_11 "sdd_11.bin"
|
||||
#define SDD_FILE_10 "sdd_10.bin"
|
||||
|
||||
int cw1200_load_firmware(struct cw1200_common *priv);
|
||||
|
||||
/* SDD definitions */
|
||||
#define SDD_PTA_CFG_ELT_ID 0xEB
|
||||
#define SDD_REFERENCE_FREQUENCY_ELT_ID 0xc5
|
||||
u32 cw1200_dpll_from_clk(u16 clk);
|
||||
|
||||
#endif
|
311
drivers/net/wireless/cw1200/hwio.c
Normal file
311
drivers/net/wireless/cw1200/hwio.c
Normal file
|
@ -0,0 +1,311 @@
|
|||
/*
|
||||
* Low-level device IO routines for ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* Based on:
|
||||
* ST-Ericsson UMAC CW1200 driver, which is
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Ajitpal Singh <ajitpal.singh@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/types.h>
|
||||
|
||||
#include "cw1200.h"
|
||||
#include "hwio.h"
|
||||
#include "sbus.h"
|
||||
|
||||
/* Sdio addr is 4*spi_addr */
|
||||
#define SPI_REG_ADDR_TO_SDIO(spi_reg_addr) ((spi_reg_addr) << 2)
|
||||
#define SDIO_ADDR17BIT(buf_id, mpf, rfu, reg_id_ofs) \
|
||||
((((buf_id) & 0x1F) << 7) \
|
||||
| (((mpf) & 1) << 6) \
|
||||
| (((rfu) & 1) << 5) \
|
||||
| (((reg_id_ofs) & 0x1F) << 0))
|
||||
#define MAX_RETRY 3
|
||||
|
||||
|
||||
static int __cw1200_reg_read(struct cw1200_common *priv, u16 addr,
|
||||
void *buf, size_t buf_len, int buf_id)
|
||||
{
|
||||
u16 addr_sdio;
|
||||
u32 sdio_reg_addr_17bit;
|
||||
|
||||
/* Check if buffer is aligned to 4 byte boundary */
|
||||
if (WARN_ON(((unsigned long)buf & 3) && (buf_len > 4))) {
|
||||
pr_err("buffer is not aligned.\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Convert to SDIO Register Address */
|
||||
addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
|
||||
sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
|
||||
|
||||
return priv->sbus_ops->sbus_memcpy_fromio(priv->sbus_priv,
|
||||
sdio_reg_addr_17bit,
|
||||
buf, buf_len);
|
||||
}
|
||||
|
||||
static int __cw1200_reg_write(struct cw1200_common *priv, u16 addr,
|
||||
const void *buf, size_t buf_len, int buf_id)
|
||||
{
|
||||
u16 addr_sdio;
|
||||
u32 sdio_reg_addr_17bit;
|
||||
|
||||
/* Convert to SDIO Register Address */
|
||||
addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
|
||||
sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
|
||||
|
||||
return priv->sbus_ops->sbus_memcpy_toio(priv->sbus_priv,
|
||||
sdio_reg_addr_17bit,
|
||||
buf, buf_len);
|
||||
}
|
||||
|
||||
static inline int __cw1200_reg_read_32(struct cw1200_common *priv,
|
||||
u16 addr, u32 *val)
|
||||
{
|
||||
int i = __cw1200_reg_read(priv, addr, val, sizeof(*val), 0);
|
||||
*val = le32_to_cpu(*val);
|
||||
return i;
|
||||
}
|
||||
|
||||
static inline int __cw1200_reg_write_32(struct cw1200_common *priv,
|
||||
u16 addr, u32 val)
|
||||
{
|
||||
val = cpu_to_le32(val);
|
||||
return __cw1200_reg_write(priv, addr, &val, sizeof(val), 0);
|
||||
}
|
||||
|
||||
static inline int __cw1200_reg_read_16(struct cw1200_common *priv,
|
||||
u16 addr, u16 *val)
|
||||
{
|
||||
int i = __cw1200_reg_read(priv, addr, val, sizeof(*val), 0);
|
||||
*val = le16_to_cpu(*val);
|
||||
return i;
|
||||
}
|
||||
|
||||
static inline int __cw1200_reg_write_16(struct cw1200_common *priv,
|
||||
u16 addr, u16 val)
|
||||
{
|
||||
val = cpu_to_le16(val);
|
||||
return __cw1200_reg_write(priv, addr, &val, sizeof(val), 0);
|
||||
}
|
||||
|
||||
int cw1200_reg_read(struct cw1200_common *priv, u16 addr, void *buf,
|
||||
size_t buf_len)
|
||||
{
|
||||
int ret;
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
ret = __cw1200_reg_read(priv, addr, buf, buf_len, 0);
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_reg_write(struct cw1200_common *priv, u16 addr, const void *buf,
|
||||
size_t buf_len)
|
||||
{
|
||||
int ret;
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
ret = __cw1200_reg_write(priv, addr, buf, buf_len, 0);
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_data_read(struct cw1200_common *priv, void *buf, size_t buf_len)
|
||||
{
|
||||
int ret, retry = 1;
|
||||
int buf_id_rx = priv->buf_id_rx;
|
||||
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
|
||||
while (retry <= MAX_RETRY) {
|
||||
ret = __cw1200_reg_read(priv,
|
||||
ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
|
||||
buf_len, buf_id_rx + 1);
|
||||
if (!ret) {
|
||||
buf_id_rx = (buf_id_rx + 1) & 3;
|
||||
priv->buf_id_rx = buf_id_rx;
|
||||
break;
|
||||
} else {
|
||||
retry++;
|
||||
mdelay(1);
|
||||
pr_err("error :[%d]\n", ret);
|
||||
}
|
||||
}
|
||||
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_data_write(struct cw1200_common *priv, const void *buf,
|
||||
size_t buf_len)
|
||||
{
|
||||
int ret, retry = 1;
|
||||
int buf_id_tx = priv->buf_id_tx;
|
||||
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
|
||||
while (retry <= MAX_RETRY) {
|
||||
ret = __cw1200_reg_write(priv,
|
||||
ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
|
||||
buf_len, buf_id_tx);
|
||||
if (!ret) {
|
||||
buf_id_tx = (buf_id_tx + 1) & 31;
|
||||
priv->buf_id_tx = buf_id_tx;
|
||||
break;
|
||||
} else {
|
||||
retry++;
|
||||
mdelay(1);
|
||||
pr_err("error :[%d]\n", ret);
|
||||
}
|
||||
}
|
||||
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
|
||||
size_t buf_len, u32 prefetch, u16 port_addr)
|
||||
{
|
||||
u32 val32 = 0;
|
||||
int i, ret;
|
||||
|
||||
if ((buf_len / 2) >= 0x1000) {
|
||||
pr_err("Can't read more than 0xfff words.\n");
|
||||
return -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
/* Write address */
|
||||
ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write address register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Read CONFIG Register Value - We will read 32 bits */
|
||||
ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't read config register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Set PREFETCH bit */
|
||||
ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID,
|
||||
val32 | prefetch);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write prefetch bit.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Check for PRE-FETCH bit to be cleared */
|
||||
for (i = 0; i < 20; i++) {
|
||||
ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't check prefetch bit.\n");
|
||||
goto out;
|
||||
}
|
||||
if (!(val32 & prefetch))
|
||||
break;
|
||||
|
||||
mdelay(i);
|
||||
}
|
||||
|
||||
if (val32 & prefetch) {
|
||||
pr_err("Prefetch bit is not cleared.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Read data port */
|
||||
ret = __cw1200_reg_read(priv, port_addr, buf, buf_len, 0);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't read data port.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
out:
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
|
||||
size_t buf_len)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if ((buf_len / 2) >= 0x1000) {
|
||||
pr_err("Can't write more than 0xfff words.\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
priv->sbus_ops->lock(priv->sbus_priv);
|
||||
|
||||
/* Write address */
|
||||
ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write address register.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Write data port */
|
||||
ret = __cw1200_reg_write(priv, ST90TDS_SRAM_DPORT_REG_ID,
|
||||
buf, buf_len, 0);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write data port.\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
out:
|
||||
priv->sbus_ops->unlock(priv->sbus_priv);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int __cw1200_irq_enable(struct cw1200_common *priv, int enable)
|
||||
{
|
||||
u32 val32;
|
||||
u16 val16;
|
||||
int ret;
|
||||
|
||||
if (HIF_8601_SILICON == priv->hw_type) {
|
||||
ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't read config register.\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (enable)
|
||||
val32 |= ST90TDS_CONF_IRQ_RDY_ENABLE;
|
||||
else
|
||||
val32 &= ~ST90TDS_CONF_IRQ_RDY_ENABLE;
|
||||
|
||||
ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val32);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write config register.\n");
|
||||
return ret;
|
||||
}
|
||||
} else {
|
||||
ret = __cw1200_reg_read_16(priv, ST90TDS_CONFIG_REG_ID, &val16);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't read control register.\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (enable)
|
||||
val16 |= ST90TDS_CONT_IRQ_RDY_ENABLE;
|
||||
else
|
||||
val16 &= ~ST90TDS_CONT_IRQ_RDY_ENABLE;
|
||||
|
||||
ret = __cw1200_reg_write_16(priv, ST90TDS_CONFIG_REG_ID, val16);
|
||||
if (ret < 0) {
|
||||
pr_err("Can't write control register.\n");
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
247
drivers/net/wireless/cw1200/hwio.h
Normal file
247
drivers/net/wireless/cw1200/hwio.h
Normal file
|
@ -0,0 +1,247 @@
|
|||
/*
|
||||
* Low-level API for mac80211 ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* Based on:
|
||||
* ST-Ericsson UMAC CW1200 driver which is
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef CW1200_HWIO_H_INCLUDED
|
||||
#define CW1200_HWIO_H_INCLUDED
|
||||
|
||||
/* extern */ struct cw1200_common;
|
||||
|
||||
#define CW1200_CUT_11_ID_STR (0x302E3830)
|
||||
#define CW1200_CUT_22_ID_STR1 (0x302e3132)
|
||||
#define CW1200_CUT_22_ID_STR2 (0x32302e30)
|
||||
#define CW1200_CUT_22_ID_STR3 (0x3335)
|
||||
#define CW1200_CUT_ID_ADDR (0xFFF17F90)
|
||||
#define CW1200_CUT2_ID_ADDR (0xFFF1FF90)
|
||||
|
||||
/* Download control area */
|
||||
/* boot loader start address in SRAM */
|
||||
#define DOWNLOAD_BOOT_LOADER_OFFSET (0x00000000)
|
||||
/* 32K, 0x4000 to 0xDFFF */
|
||||
#define DOWNLOAD_FIFO_OFFSET (0x00004000)
|
||||
/* 32K */
|
||||
#define DOWNLOAD_FIFO_SIZE (0x00008000)
|
||||
/* 128 bytes, 0xFF80 to 0xFFFF */
|
||||
#define DOWNLOAD_CTRL_OFFSET (0x0000FF80)
|
||||
#define DOWNLOAD_CTRL_DATA_DWORDS (32-6)
|
||||
|
||||
struct download_cntl_t {
|
||||
/* size of whole firmware file (including Cheksum), host init */
|
||||
u32 image_size;
|
||||
/* downloading flags */
|
||||
u32 flags;
|
||||
/* No. of bytes put into the download, init & updated by host */
|
||||
u32 put;
|
||||
/* last traced program counter, last ARM reg_pc */
|
||||
u32 trace_pc;
|
||||
/* No. of bytes read from the download, host init, device updates */
|
||||
u32 get;
|
||||
/* r0, boot losader status, host init to pending, device updates */
|
||||
u32 status;
|
||||
/* Extra debug info, r1 to r14 if status=r0=DOWNLOAD_EXCEPTION */
|
||||
u32 debug_data[DOWNLOAD_CTRL_DATA_DWORDS];
|
||||
};
|
||||
|
||||
#define DOWNLOAD_IMAGE_SIZE_REG \
|
||||
(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, image_size))
|
||||
#define DOWNLOAD_FLAGS_REG \
|
||||
(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, flags))
|
||||
#define DOWNLOAD_PUT_REG \
|
||||
(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, put))
|
||||
#define DOWNLOAD_TRACE_PC_REG \
|
||||
(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, trace_pc))
|
||||
#define DOWNLOAD_GET_REG \
|
||||
(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, get))
|
||||
#define DOWNLOAD_STATUS_REG \
|
||||
(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, status))
|
||||
#define DOWNLOAD_DEBUG_DATA_REG \
|
||||
(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, debug_data))
|
||||
#define DOWNLOAD_DEBUG_DATA_LEN (108)
|
||||
|
||||
#define DOWNLOAD_BLOCK_SIZE (1024)
|
||||
|
||||
/* For boot loader detection */
|
||||
#define DOWNLOAD_ARE_YOU_HERE (0x87654321)
|
||||
#define DOWNLOAD_I_AM_HERE (0x12345678)
|
||||
|
||||
/* Download error code */
|
||||
#define DOWNLOAD_PENDING (0xFFFFFFFF)
|
||||
#define DOWNLOAD_SUCCESS (0)
|
||||
#define DOWNLOAD_EXCEPTION (1)
|
||||
#define DOWNLOAD_ERR_MEM_1 (2)
|
||||
#define DOWNLOAD_ERR_MEM_2 (3)
|
||||
#define DOWNLOAD_ERR_SOFTWARE (4)
|
||||
#define DOWNLOAD_ERR_FILE_SIZE (5)
|
||||
#define DOWNLOAD_ERR_CHECKSUM (6)
|
||||
#define DOWNLOAD_ERR_OVERFLOW (7)
|
||||
#define DOWNLOAD_ERR_IMAGE (8)
|
||||
#define DOWNLOAD_ERR_HOST (9)
|
||||
#define DOWNLOAD_ERR_ABORT (10)
|
||||
|
||||
|
||||
#define SYS_BASE_ADDR_SILICON (0)
|
||||
#define PAC_BASE_ADDRESS_SILICON (SYS_BASE_ADDR_SILICON + 0x09000000)
|
||||
#define PAC_SHARED_MEMORY_SILICON (PAC_BASE_ADDRESS_SILICON)
|
||||
|
||||
#define CW1200_APB(addr) (PAC_SHARED_MEMORY_SILICON + (addr))
|
||||
|
||||
/* ***************************************************************
|
||||
*Device register definitions
|
||||
*************************************************************** */
|
||||
/* WBF - SPI Register Addresses */
|
||||
#define ST90TDS_ADDR_ID_BASE (0x0000)
|
||||
/* 16/32 bits */
|
||||
#define ST90TDS_CONFIG_REG_ID (0x0000)
|
||||
/* 16/32 bits */
|
||||
#define ST90TDS_CONTROL_REG_ID (0x0001)
|
||||
/* 16 bits, Q mode W/R */
|
||||
#define ST90TDS_IN_OUT_QUEUE_REG_ID (0x0002)
|
||||
/* 32 bits, AHB bus R/W */
|
||||
#define ST90TDS_AHB_DPORT_REG_ID (0x0003)
|
||||
/* 16/32 bits */
|
||||
#define ST90TDS_SRAM_BASE_ADDR_REG_ID (0x0004)
|
||||
/* 32 bits, APB bus R/W */
|
||||
#define ST90TDS_SRAM_DPORT_REG_ID (0x0005)
|
||||
/* 32 bits, t_settle/general */
|
||||
#define ST90TDS_TSET_GEN_R_W_REG_ID (0x0006)
|
||||
/* 16 bits, Q mode read, no length */
|
||||
#define ST90TDS_FRAME_OUT_REG_ID (0x0007)
|
||||
#define ST90TDS_ADDR_ID_MAX (ST90TDS_FRAME_OUT_REG_ID)
|
||||
|
||||
/* WBF - Control register bit set */
|
||||
/* next o/p length, bit 11 to 0 */
|
||||
#define ST90TDS_CONT_NEXT_LEN_MASK (0x0FFF)
|
||||
#define ST90TDS_CONT_WUP_BIT (BIT(12))
|
||||
#define ST90TDS_CONT_RDY_BIT (BIT(13))
|
||||
#define ST90TDS_CONT_IRQ_ENABLE (BIT(14))
|
||||
#define ST90TDS_CONT_RDY_ENABLE (BIT(15))
|
||||
#define ST90TDS_CONT_IRQ_RDY_ENABLE (BIT(14)|BIT(15))
|
||||
|
||||
/* SPI Config register bit set */
|
||||
#define ST90TDS_CONFIG_FRAME_BIT (BIT(2))
|
||||
#define ST90TDS_CONFIG_WORD_MODE_BITS (BIT(3)|BIT(4))
|
||||
#define ST90TDS_CONFIG_WORD_MODE_1 (BIT(3))
|
||||
#define ST90TDS_CONFIG_WORD_MODE_2 (BIT(4))
|
||||
#define ST90TDS_CONFIG_ERROR_0_BIT (BIT(5))
|
||||
#define ST90TDS_CONFIG_ERROR_1_BIT (BIT(6))
|
||||
#define ST90TDS_CONFIG_ERROR_2_BIT (BIT(7))
|
||||
/* TBD: Sure??? */
|
||||
#define ST90TDS_CONFIG_CSN_FRAME_BIT (BIT(7))
|
||||
#define ST90TDS_CONFIG_ERROR_3_BIT (BIT(8))
|
||||
#define ST90TDS_CONFIG_ERROR_4_BIT (BIT(9))
|
||||
/* QueueM */
|
||||
#define ST90TDS_CONFIG_ACCESS_MODE_BIT (BIT(10))
|
||||
/* AHB bus */
|
||||
#define ST90TDS_CONFIG_AHB_PRFETCH_BIT (BIT(11))
|
||||
#define ST90TDS_CONFIG_CPU_CLK_DIS_BIT (BIT(12))
|
||||
/* APB bus */
|
||||
#define ST90TDS_CONFIG_PRFETCH_BIT (BIT(13))
|
||||
/* cpu reset */
|
||||
#define ST90TDS_CONFIG_CPU_RESET_BIT (BIT(14))
|
||||
#define ST90TDS_CONFIG_CLEAR_INT_BIT (BIT(15))
|
||||
|
||||
/* For CW1200 the IRQ Enable and Ready Bits are in CONFIG register */
|
||||
#define ST90TDS_CONF_IRQ_ENABLE (BIT(16))
|
||||
#define ST90TDS_CONF_RDY_ENABLE (BIT(17))
|
||||
#define ST90TDS_CONF_IRQ_RDY_ENABLE (BIT(16)|BIT(17))
|
||||
|
||||
int cw1200_data_read(struct cw1200_common *priv,
|
||||
void *buf, size_t buf_len);
|
||||
int cw1200_data_write(struct cw1200_common *priv,
|
||||
const void *buf, size_t buf_len);
|
||||
|
||||
int cw1200_reg_read(struct cw1200_common *priv, u16 addr,
|
||||
void *buf, size_t buf_len);
|
||||
int cw1200_reg_write(struct cw1200_common *priv, u16 addr,
|
||||
const void *buf, size_t buf_len);
|
||||
|
||||
static inline int cw1200_reg_read_16(struct cw1200_common *priv,
|
||||
u16 addr, u16 *val)
|
||||
{
|
||||
u32 tmp;
|
||||
int i;
|
||||
i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
|
||||
tmp = le32_to_cpu(tmp);
|
||||
*val = tmp & 0xffff;
|
||||
return i;
|
||||
}
|
||||
|
||||
static inline int cw1200_reg_write_16(struct cw1200_common *priv,
|
||||
u16 addr, u16 val)
|
||||
{
|
||||
u32 tmp = val;
|
||||
tmp = cpu_to_le32(tmp);
|
||||
return cw1200_reg_write(priv, addr, &tmp, sizeof(tmp));
|
||||
}
|
||||
|
||||
static inline int cw1200_reg_read_32(struct cw1200_common *priv,
|
||||
u16 addr, u32 *val)
|
||||
{
|
||||
int i = cw1200_reg_read(priv, addr, val, sizeof(*val));
|
||||
*val = le32_to_cpu(*val);
|
||||
return i;
|
||||
}
|
||||
|
||||
static inline int cw1200_reg_write_32(struct cw1200_common *priv,
|
||||
u16 addr, u32 val)
|
||||
{
|
||||
val = cpu_to_le32(val);
|
||||
return cw1200_reg_write(priv, addr, &val, sizeof(val));
|
||||
}
|
||||
|
||||
int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
|
||||
size_t buf_len, u32 prefetch, u16 port_addr);
|
||||
int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
|
||||
size_t buf_len);
|
||||
|
||||
static inline int cw1200_apb_read(struct cw1200_common *priv, u32 addr,
|
||||
void *buf, size_t buf_len)
|
||||
{
|
||||
return cw1200_indirect_read(priv, addr, buf, buf_len,
|
||||
ST90TDS_CONFIG_PRFETCH_BIT,
|
||||
ST90TDS_SRAM_DPORT_REG_ID);
|
||||
}
|
||||
|
||||
static inline int cw1200_ahb_read(struct cw1200_common *priv, u32 addr,
|
||||
void *buf, size_t buf_len)
|
||||
{
|
||||
return cw1200_indirect_read(priv, addr, buf, buf_len,
|
||||
ST90TDS_CONFIG_AHB_PRFETCH_BIT,
|
||||
ST90TDS_AHB_DPORT_REG_ID);
|
||||
}
|
||||
|
||||
static inline int cw1200_apb_read_32(struct cw1200_common *priv,
|
||||
u32 addr, u32 *val)
|
||||
{
|
||||
int i = cw1200_apb_read(priv, addr, val, sizeof(*val));
|
||||
*val = le32_to_cpu(*val);
|
||||
return i;
|
||||
}
|
||||
|
||||
static inline int cw1200_apb_write_32(struct cw1200_common *priv,
|
||||
u32 addr, u32 val)
|
||||
{
|
||||
val = cpu_to_le32(val);
|
||||
return cw1200_apb_write(priv, addr, &val, sizeof(val));
|
||||
}
|
||||
static inline int cw1200_ahb_read_32(struct cw1200_common *priv,
|
||||
u32 addr, u32 *val)
|
||||
{
|
||||
int i = cw1200_ahb_read(priv, addr, val, sizeof(*val));
|
||||
*val = le32_to_cpu(*val);
|
||||
return i;
|
||||
}
|
||||
|
||||
#endif /* CW1200_HWIO_H_INCLUDED */
|
730
drivers/net/wireless/cw1200/itp.c
Normal file
730
drivers/net/wireless/cw1200/itp.c
Normal file
|
@ -0,0 +1,730 @@
|
|||
/*
|
||||
* mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
|
||||
* ITP code
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/debugfs.h>
|
||||
#include <linux/poll.h>
|
||||
#include <linux/time.h>
|
||||
#include <linux/random.h>
|
||||
#include <linux/kallsyms.h>
|
||||
#include <net/mac80211.h>
|
||||
#include "cw1200.h"
|
||||
#include "debug.h"
|
||||
#include "itp.h"
|
||||
#include "sta.h"
|
||||
|
||||
static int __cw1200_itp_open(struct cw1200_common *priv);
|
||||
static int __cw1200_itp_close(struct cw1200_common *priv);
|
||||
static void cw1200_itp_rx_start(struct cw1200_common *priv);
|
||||
static void cw1200_itp_rx_stop(struct cw1200_common *priv);
|
||||
static void cw1200_itp_rx_stats(struct cw1200_common *priv);
|
||||
static void cw1200_itp_rx_reset(struct cw1200_common *priv);
|
||||
static void cw1200_itp_tx_stop(struct cw1200_common *priv);
|
||||
static void cw1200_itp_handle(struct cw1200_common *priv,
|
||||
struct sk_buff *skb);
|
||||
static void cw1200_itp_err(struct cw1200_common *priv,
|
||||
int err,
|
||||
int arg);
|
||||
static void __cw1200_itp_tx_stop(struct cw1200_common *priv);
|
||||
|
||||
static ssize_t cw1200_itp_read(struct file *file,
|
||||
char __user *user_buf, size_t count, loff_t *ppos)
|
||||
{
|
||||
struct cw1200_common *priv = file->private_data;
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
struct sk_buff *skb;
|
||||
int ret;
|
||||
|
||||
if (skb_queue_empty(&itp->log_queue))
|
||||
return 0;
|
||||
|
||||
skb = skb_dequeue(&itp->log_queue);
|
||||
ret = copy_to_user(user_buf, skb->data, skb->len);
|
||||
*ppos += skb->len;
|
||||
skb->data[skb->len] = 0;
|
||||
pr_debug("[ITP] >>> %s", skb->data);
|
||||
consume_skb(skb);
|
||||
|
||||
return skb->len - ret;
|
||||
}
|
||||
|
||||
static ssize_t cw1200_itp_write(struct file *file,
|
||||
const char __user *user_buf, size_t count, loff_t *ppos)
|
||||
{
|
||||
struct cw1200_common *priv = file->private_data;
|
||||
struct sk_buff *skb;
|
||||
|
||||
if (!count || count > 1024)
|
||||
return -EINVAL;
|
||||
skb = dev_alloc_skb(count + 1);
|
||||
if (!skb)
|
||||
return -ENOMEM;
|
||||
skb_trim(skb, 0);
|
||||
skb_put(skb, count + 1);
|
||||
if (copy_from_user(skb->data, user_buf, count)) {
|
||||
kfree_skb(skb);
|
||||
return -EFAULT;
|
||||
}
|
||||
skb->data[count] = 0;
|
||||
|
||||
cw1200_itp_handle(priv, skb);
|
||||
consume_skb(skb);
|
||||
return count;
|
||||
}
|
||||
|
||||
static unsigned int cw1200_itp_poll(struct file *file, poll_table *wait)
|
||||
{
|
||||
struct cw1200_common *priv = file->private_data;
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
unsigned int mask = 0;
|
||||
|
||||
poll_wait(file, &itp->read_wait, wait);
|
||||
|
||||
if (!skb_queue_empty(&itp->log_queue))
|
||||
mask |= POLLIN | POLLRDNORM;
|
||||
|
||||
mask |= POLLOUT | POLLWRNORM;
|
||||
|
||||
return mask;
|
||||
}
|
||||
|
||||
static int cw1200_itp_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct cw1200_common *priv = inode->i_private;
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
int ret = 0;
|
||||
|
||||
file->private_data = priv;
|
||||
if (atomic_inc_return(&itp->open_count) == 1) {
|
||||
ret = __cw1200_itp_open(priv);
|
||||
if (ret && !atomic_dec_return(&itp->open_count))
|
||||
__cw1200_itp_close(priv);
|
||||
} else {
|
||||
atomic_dec(&itp->open_count);
|
||||
ret = -EBUSY;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cw1200_itp_close(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct cw1200_common *priv = file->private_data;
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
if (!atomic_dec_return(&itp->open_count)) {
|
||||
__cw1200_itp_close(priv);
|
||||
wake_up(&itp->close_wait);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct file_operations fops_itp = {
|
||||
.open = cw1200_itp_open,
|
||||
.read = cw1200_itp_read,
|
||||
.write = cw1200_itp_write,
|
||||
.poll = cw1200_itp_poll,
|
||||
.release = cw1200_itp_close,
|
||||
.llseek = default_llseek,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static void cw1200_itp_fill_pattern(u8 *data, int size,
|
||||
enum cw1200_itp_data_modes mode)
|
||||
{
|
||||
if (size <= 0)
|
||||
return;
|
||||
|
||||
switch (mode) {
|
||||
default:
|
||||
case ITP_DATA_ZEROS:
|
||||
memset(data, 0x0, size);
|
||||
break;
|
||||
case ITP_DATA_ONES:
|
||||
memset(data, 0xff, size);
|
||||
break;
|
||||
case ITP_DATA_ZERONES:
|
||||
memset(data, 0x55, size);
|
||||
break;
|
||||
case ITP_DATA_RANDOM:
|
||||
get_random_bytes(data, size);
|
||||
break;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
static void cw1200_itp_tx_work(struct work_struct *work)
|
||||
{
|
||||
struct cw1200_itp *itp = container_of(work, struct cw1200_itp,
|
||||
tx_work.work);
|
||||
struct cw1200_common *priv = itp->priv;
|
||||
atomic_set(&priv->bh_tx, 1);
|
||||
wake_up(&priv->bh_wq);
|
||||
}
|
||||
|
||||
static void cw1200_itp_tx_finish(struct work_struct *work)
|
||||
{
|
||||
struct cw1200_itp *itp = container_of(work, struct cw1200_itp,
|
||||
tx_finish.work);
|
||||
__cw1200_itp_tx_stop(itp->priv);
|
||||
}
|
||||
|
||||
int cw1200_itp_init(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
|
||||
itp->priv = priv;
|
||||
atomic_set(&itp->open_count, 0);
|
||||
atomic_set(&itp->stop_tx, 0);
|
||||
atomic_set(&itp->awaiting_confirm, 0);
|
||||
skb_queue_head_init(&itp->log_queue);
|
||||
spin_lock_init(&itp->tx_lock);
|
||||
init_waitqueue_head(&itp->read_wait);
|
||||
init_waitqueue_head(&itp->write_wait);
|
||||
init_waitqueue_head(&itp->close_wait);
|
||||
INIT_DELAYED_WORK(&itp->tx_work, cw1200_itp_tx_work);
|
||||
INIT_DELAYED_WORK(&itp->tx_finish, cw1200_itp_tx_finish);
|
||||
itp->data = NULL;
|
||||
itp->hdr_len = WSM_TX_EXTRA_HEADROOM +
|
||||
sizeof(struct ieee80211_hdr_3addr);
|
||||
|
||||
if (!debugfs_create_file("itp", S_IRUSR | S_IWUSR,
|
||||
priv->debug->debugfs_phy, priv, &fops_itp))
|
||||
return -ENOMEM;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void cw1200_itp_release(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
|
||||
wait_event_interruptible(itp->close_wait,
|
||||
!atomic_read(&itp->open_count));
|
||||
|
||||
WARN_ON(atomic_read(&itp->open_count));
|
||||
|
||||
skb_queue_purge(&itp->log_queue);
|
||||
cw1200_itp_tx_stop(priv);
|
||||
}
|
||||
|
||||
static int __cw1200_itp_open(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
|
||||
if (!priv->vif)
|
||||
return -EINVAL;
|
||||
if (priv->join_status)
|
||||
return -EINVAL;
|
||||
itp->saved_channel = priv->channel;
|
||||
if (!priv->channel)
|
||||
priv->channel = &priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
|
||||
wsm_set_bssid_filtering(priv, false);
|
||||
cw1200_itp_rx_reset(priv);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __cw1200_itp_close(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
if (atomic_read(&itp->test_mode) == TEST_MODE_RX_TEST)
|
||||
cw1200_itp_rx_stop(priv);
|
||||
cw1200_itp_tx_stop(priv);
|
||||
cw1200_disable_listening(priv);
|
||||
cw1200_update_filtering(priv);
|
||||
priv->channel = itp->saved_channel;
|
||||
return 0;
|
||||
}
|
||||
|
||||
bool cw1200_is_itp(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
return atomic_read(&itp->open_count) != 0;
|
||||
}
|
||||
|
||||
static void cw1200_itp_rx_reset(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
itp->rx_cnt = 0;
|
||||
itp->rx_rssi = 0;
|
||||
itp->rx_rssi_max = -1000;
|
||||
itp->rx_rssi_min = 1000;
|
||||
}
|
||||
|
||||
static void cw1200_itp_rx_start(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
|
||||
pr_debug("[ITP] RX start, band = %d, ch = %d\n",
|
||||
itp->band, itp->ch);
|
||||
atomic_set(&itp->test_mode, TEST_MODE_RX_TEST);
|
||||
cw1200_update_listening(priv, false);
|
||||
priv->channel = &priv->hw->
|
||||
wiphy->bands[itp->band]->channels[itp->ch];
|
||||
cw1200_update_listening(priv, true);
|
||||
wsm_set_bssid_filtering(priv, false);
|
||||
}
|
||||
|
||||
static void cw1200_itp_rx_stop(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
pr_debug("[ITP] RX stop\n");
|
||||
atomic_set(&itp->test_mode, TEST_MODE_NO_TEST);
|
||||
cw1200_itp_rx_reset(priv);
|
||||
}
|
||||
|
||||
static void cw1200_itp_rx_stats(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
struct sk_buff *skb;
|
||||
char buf[128];
|
||||
int len, ret;
|
||||
struct wsm_mib_counters_table counters;
|
||||
|
||||
ret = wsm_get_counters_table(priv, &counters);
|
||||
|
||||
if (ret)
|
||||
cw1200_itp_err(priv, -EBUSY, 20);
|
||||
|
||||
if (!itp->rx_cnt)
|
||||
len = snprintf(buf, sizeof(buf), "1,0,0,0,0,%d\n",
|
||||
counters.rx_packet_errors);
|
||||
else
|
||||
len = snprintf(buf, sizeof(buf), "1,%d,%ld,%d,%d,%d\n",
|
||||
itp->rx_cnt,
|
||||
itp->rx_cnt ? itp->rx_rssi / itp->rx_cnt : 0,
|
||||
itp->rx_rssi_min, itp->rx_rssi_max,
|
||||
counters.rx_packet_errors);
|
||||
|
||||
if (len <= 0) {
|
||||
cw1200_itp_err(priv, -EBUSY, 21);
|
||||
return;
|
||||
}
|
||||
|
||||
skb = dev_alloc_skb(len);
|
||||
if (!skb) {
|
||||
cw1200_itp_err(priv, -ENOMEM, 22);
|
||||
return;
|
||||
}
|
||||
|
||||
itp->rx_cnt = 0;
|
||||
itp->rx_rssi = 0;
|
||||
itp->rx_rssi_max = -1000;
|
||||
itp->rx_rssi_min = 1000;
|
||||
|
||||
skb_trim(skb, 0);
|
||||
skb_put(skb, len);
|
||||
|
||||
memcpy(skb->data, buf, len);
|
||||
skb_queue_tail(&itp->log_queue, skb);
|
||||
wake_up(&itp->read_wait);
|
||||
}
|
||||
|
||||
static void cw1200_itp_tx_start(struct cw1200_common *priv)
|
||||
{
|
||||
struct wsm_tx *tx;
|
||||
struct ieee80211_hdr_3addr *hdr;
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
struct wsm_mib_association_mode assoc_mode = {
|
||||
.flags = WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE,
|
||||
.preamble = itp->preamble,
|
||||
};
|
||||
int len;
|
||||
u8 da_addr[6] = ITP_DEFAULT_DA_ADDR;
|
||||
|
||||
/* Rates index 4 and 5 are not supported */
|
||||
if (itp->rate > 3)
|
||||
itp->rate += 2;
|
||||
|
||||
pr_debug("[ITP] TX start: band = %d, ch = %d, rate = %d, preamble = %d, number = %d, data_mode = %d, interval = %d, power = %d, data_len = %d\n",
|
||||
itp->band, itp->ch, itp->rate, itp->preamble,
|
||||
itp->number, itp->data_mode, itp->interval_us,
|
||||
itp->power, itp->data_len);
|
||||
|
||||
len = itp->hdr_len + itp->data_len;
|
||||
|
||||
itp->data = kmalloc(len, GFP_KERNEL);
|
||||
tx = (struct wsm_tx *)itp->data;
|
||||
tx->hdr.len = itp->data_len + itp->hdr_len;
|
||||
tx->hdr.id = __cpu_to_le16(0x0004 | 1 << 6);
|
||||
tx->max_tx_rate = itp->rate;
|
||||
tx->queue_id = 3;
|
||||
tx->more = 0;
|
||||
tx->flags = 0xc;
|
||||
tx->packet_id = 0x55ff55;
|
||||
tx->reserved = 0;
|
||||
tx->expire_time = 1;
|
||||
|
||||
if (itp->preamble == ITP_PREAMBLE_GREENFIELD)
|
||||
tx->ht_tx_parameters = WSM_HT_TX_GREENFIELD;
|
||||
else if (itp->preamble == ITP_PREAMBLE_MIXED)
|
||||
tx->ht_tx_parameters = WSM_HT_TX_MIXED;
|
||||
|
||||
hdr = (struct ieee80211_hdr_3addr *)&itp->data[sizeof(struct wsm_tx)];
|
||||
memset(hdr, 0, sizeof(*hdr));
|
||||
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS);
|
||||
memcpy(hdr->addr1, da_addr, ETH_ALEN);
|
||||
memcpy(hdr->addr2, priv->vif->addr, ETH_ALEN);
|
||||
memcpy(hdr->addr3, da_addr, ETH_ALEN);
|
||||
|
||||
cw1200_itp_fill_pattern(&itp->data[itp->hdr_len],
|
||||
itp->data_len, itp->data_mode);
|
||||
|
||||
cw1200_update_listening(priv, false);
|
||||
priv->channel = &priv->hw->wiphy->bands[itp->band]->channels[itp->ch];
|
||||
WARN_ON(wsm_set_output_power(priv, itp->power));
|
||||
if (itp->preamble == ITP_PREAMBLE_SHORT ||
|
||||
itp->preamble == ITP_PREAMBLE_LONG)
|
||||
WARN_ON(wsm_set_association_mode(priv,
|
||||
&assoc_mode));
|
||||
wsm_set_bssid_filtering(priv, false);
|
||||
cw1200_update_listening(priv, true);
|
||||
|
||||
spin_lock_bh(&itp->tx_lock);
|
||||
atomic_set(&itp->test_mode, TEST_MODE_TX_TEST);
|
||||
atomic_set(&itp->awaiting_confirm, 0);
|
||||
atomic_set(&itp->stop_tx, 0);
|
||||
atomic_set(&priv->bh_tx, 1);
|
||||
ktime_get_ts(&itp->last_sent);
|
||||
wake_up(&priv->bh_wq);
|
||||
spin_unlock_bh(&itp->tx_lock);
|
||||
}
|
||||
|
||||
void __cw1200_itp_tx_stop(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
spin_lock_bh(&itp->tx_lock);
|
||||
kfree(itp->data);
|
||||
itp->data = NULL;
|
||||
atomic_set(&itp->test_mode, TEST_MODE_NO_TEST);
|
||||
spin_unlock_bh(&itp->tx_lock);
|
||||
}
|
||||
|
||||
static void cw1200_itp_tx_stop(struct cw1200_common *priv)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
pr_debug("[ITP] TX stop\n");
|
||||
atomic_set(&itp->stop_tx, 1);
|
||||
flush_workqueue(priv->workqueue);
|
||||
|
||||
/* time for FW to confirm all tx requests */
|
||||
msleep(500);
|
||||
|
||||
__cw1200_itp_tx_stop(priv);
|
||||
}
|
||||
|
||||
static int cw1200_print_fw_version(struct cw1200_common *priv,
|
||||
u8 *buf, size_t len)
|
||||
{
|
||||
return snprintf(buf, len, "%s %d.%d",
|
||||
cw1200_fw_types[priv->wsm_caps.fw_type],
|
||||
priv->wsm_caps.fw_ver,
|
||||
priv->wsm_caps.fw_build);
|
||||
}
|
||||
|
||||
static void cw1200_itp_get_version(struct cw1200_common *priv,
|
||||
enum cw1200_itp_version_type type)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
struct sk_buff *skb;
|
||||
char buf[ITP_BUF_SIZE];
|
||||
size_t size = 0;
|
||||
int len;
|
||||
pr_debug("[ITP] print %s version\n",
|
||||
type == ITP_CHIP_ID ? "chip" : "firmware");
|
||||
|
||||
len = snprintf(buf, ITP_BUF_SIZE, "2,");
|
||||
if (len <= 0) {
|
||||
cw1200_itp_err(priv, -EINVAL, 40);
|
||||
return;
|
||||
}
|
||||
size += len;
|
||||
|
||||
switch (type) {
|
||||
case ITP_CHIP_ID:
|
||||
len = cw1200_print_fw_version(priv, buf+size,
|
||||
ITP_BUF_SIZE - size);
|
||||
|
||||
if (len <= 0) {
|
||||
cw1200_itp_err(priv, -EINVAL, 41);
|
||||
return;
|
||||
}
|
||||
size += len;
|
||||
break;
|
||||
case ITP_FW_VER:
|
||||
len = snprintf(buf+size, ITP_BUF_SIZE - size,
|
||||
"%d.%d", priv->wsm_caps.hw_id,
|
||||
priv->wsm_caps.hw_subid);
|
||||
if (len <= 0) {
|
||||
cw1200_itp_err(priv, -EINVAL, 42);
|
||||
return;
|
||||
}
|
||||
size += len;
|
||||
break;
|
||||
default:
|
||||
cw1200_itp_err(priv, -EINVAL, 43);
|
||||
break;
|
||||
}
|
||||
|
||||
len = snprintf(buf+size, ITP_BUF_SIZE-size, "\n");
|
||||
if (len <= 0) {
|
||||
cw1200_itp_err(priv, -EINVAL, 44);
|
||||
return;
|
||||
}
|
||||
size += len;
|
||||
|
||||
skb = dev_alloc_skb(size);
|
||||
if (!skb) {
|
||||
cw1200_itp_err(priv, -ENOMEM, 45);
|
||||
return;
|
||||
}
|
||||
|
||||
skb_trim(skb, 0);
|
||||
skb_put(skb, size);
|
||||
|
||||
memcpy(skb->data, buf, size);
|
||||
skb_queue_tail(&itp->log_queue, skb);
|
||||
wake_up(&itp->read_wait);
|
||||
}
|
||||
|
||||
int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
|
||||
size_t *tx_len, int *burst)
|
||||
{
|
||||
struct cw1200_itp *itp;
|
||||
struct timespec now;
|
||||
int time_left_us;
|
||||
|
||||
if (!priv->debug)
|
||||
return 0;
|
||||
|
||||
itp = &priv->debug->itp;
|
||||
|
||||
if (!itp)
|
||||
return 0;
|
||||
|
||||
spin_lock_bh(&itp->tx_lock);
|
||||
if (atomic_read(&itp->test_mode) != TEST_MODE_TX_TEST)
|
||||
goto out;
|
||||
|
||||
if (atomic_read(&itp->stop_tx))
|
||||
goto out;
|
||||
|
||||
if (itp->number == 0) {
|
||||
atomic_set(&itp->stop_tx, 1);
|
||||
queue_delayed_work(priv->workqueue, &itp->tx_finish, HZ/10);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (!itp->data)
|
||||
goto out;
|
||||
|
||||
if (priv->hw_bufs_used >= 2) {
|
||||
if (!atomic_read(&priv->bh_rx))
|
||||
atomic_set(&priv->bh_rx, 1);
|
||||
atomic_set(&priv->bh_tx, 1);
|
||||
goto out;
|
||||
}
|
||||
|
||||
ktime_get_ts(&now);
|
||||
time_left_us = (itp->last_sent.tv_sec - now.tv_sec)*1000000 +
|
||||
(itp->last_sent.tv_nsec - now.tv_nsec)/1000 +
|
||||
itp->interval_us;
|
||||
|
||||
if (time_left_us > ITP_TIME_THRES_US) {
|
||||
queue_delayed_work(priv->workqueue, &itp->tx_work,
|
||||
ITP_US_TO_MS(time_left_us)*HZ/1000);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (time_left_us > 50)
|
||||
udelay(time_left_us);
|
||||
|
||||
if (itp->number > 0)
|
||||
itp->number--;
|
||||
|
||||
*data = itp->data;
|
||||
*tx_len = itp->data_len + itp->hdr_len;
|
||||
|
||||
if (itp->data_mode == ITP_DATA_RANDOM)
|
||||
cw1200_itp_fill_pattern(&itp->data[itp->hdr_len],
|
||||
itp->data_len, itp->data_mode);
|
||||
*burst = 2;
|
||||
atomic_set(&priv->bh_tx, 1);
|
||||
ktime_get_ts(&itp->last_sent);
|
||||
atomic_add(1, &itp->awaiting_confirm);
|
||||
spin_unlock_bh(&itp->tx_lock);
|
||||
return 1;
|
||||
|
||||
out:
|
||||
spin_unlock_bh(&itp->tx_lock);
|
||||
return 0;
|
||||
}
|
||||
|
||||
bool cw1200_itp_rxed(struct cw1200_common *priv, struct sk_buff *skb)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
struct ieee80211_rx_status *rx = IEEE80211_SKB_RXCB(skb);
|
||||
int signal;
|
||||
|
||||
if (atomic_read(&itp->test_mode) != TEST_MODE_RX_TEST)
|
||||
return cw1200_is_itp(priv);
|
||||
if (rx->freq != priv->channel->center_freq)
|
||||
return true;
|
||||
|
||||
signal = rx->signal;
|
||||
itp->rx_cnt++;
|
||||
itp->rx_rssi += signal;
|
||||
if (itp->rx_rssi_min > rx->signal)
|
||||
itp->rx_rssi_min = rx->signal;
|
||||
if (itp->rx_rssi_max < rx->signal)
|
||||
itp->rx_rssi_max = rx->signal;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void cw1200_itp_wake_up_tx(struct cw1200_common *priv)
|
||||
{
|
||||
wake_up(&priv->debug->itp.write_wait);
|
||||
}
|
||||
|
||||
bool cw1200_itp_tx_running(struct cw1200_common *priv)
|
||||
{
|
||||
if (atomic_read(&priv->debug->itp.awaiting_confirm) ||
|
||||
atomic_read(&priv->debug->itp.test_mode) ==
|
||||
TEST_MODE_TX_TEST) {
|
||||
atomic_sub(1, &priv->debug->itp.awaiting_confirm);
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
static void cw1200_itp_handle(struct cw1200_common *priv,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
const struct wiphy *wiphy = priv->hw->wiphy;
|
||||
int cmd;
|
||||
int ret;
|
||||
|
||||
pr_debug("[ITP] <<< %s", skb->data);
|
||||
if (sscanf(skb->data, "%d", &cmd) != 1) {
|
||||
cw1200_itp_err(priv, -EINVAL, 1);
|
||||
return;
|
||||
}
|
||||
|
||||
switch (cmd) {
|
||||
case 1: /* RX test */
|
||||
if (atomic_read(&itp->test_mode)) {
|
||||
cw1200_itp_err(priv, -EBUSY, 0);
|
||||
return;
|
||||
}
|
||||
ret = sscanf(skb->data, "%d,%d,%d",
|
||||
&cmd, &itp->band, &itp->ch);
|
||||
if (ret != 3) {
|
||||
cw1200_itp_err(priv, -EINVAL, ret + 1);
|
||||
return;
|
||||
}
|
||||
if (itp->band >= 2) {
|
||||
cw1200_itp_err(priv, -EINVAL, 2);
|
||||
} else if (!wiphy->bands[itp->band]) {
|
||||
cw1200_itp_err(priv, -EINVAL, 2);
|
||||
} else if (itp->ch >= wiphy->bands[itp->band]->n_channels) {
|
||||
cw1200_itp_err(priv, -EINVAL, 3);
|
||||
} else {
|
||||
cw1200_itp_rx_stats(priv);
|
||||
cw1200_itp_rx_start(priv);
|
||||
}
|
||||
break;
|
||||
case 2: /* RX stat */
|
||||
cw1200_itp_rx_stats(priv);
|
||||
break;
|
||||
case 3: /* RX/TX stop */
|
||||
if (atomic_read(&itp->test_mode) == TEST_MODE_RX_TEST) {
|
||||
cw1200_itp_rx_stats(priv);
|
||||
cw1200_itp_rx_stop(priv);
|
||||
} else if (atomic_read(&itp->test_mode) == TEST_MODE_TX_TEST) {
|
||||
cw1200_itp_tx_stop(priv);
|
||||
} else {
|
||||
cw1200_itp_err(priv, -EBUSY, 0);
|
||||
}
|
||||
break;
|
||||
case 4: /* TX start */
|
||||
if (atomic_read(&itp->test_mode) != TEST_MODE_NO_TEST) {
|
||||
cw1200_itp_err(priv, -EBUSY, 0);
|
||||
return;
|
||||
}
|
||||
ret = sscanf(skb->data, "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d",
|
||||
&cmd, &itp->band, &itp->ch, &itp->rate,
|
||||
&itp->preamble, &itp->number, &itp->data_mode,
|
||||
&itp->interval_us, &itp->power, &itp->data_len);
|
||||
if (ret != 10) {
|
||||
cw1200_itp_err(priv, -EINVAL, ret + 1);
|
||||
return;
|
||||
}
|
||||
if (itp->band >= 2) {
|
||||
cw1200_itp_err(priv, -EINVAL, 2);
|
||||
} else if (!wiphy->bands[itp->band]) {
|
||||
cw1200_itp_err(priv, -EINVAL, 2);
|
||||
} else if (itp->ch >= wiphy->bands[itp->band]->n_channels) {
|
||||
cw1200_itp_err(priv, -EINVAL, 3);
|
||||
} else if (itp->rate >= 20) {
|
||||
cw1200_itp_err(priv, -EINVAL, 4);
|
||||
} else if (itp->preamble >= ITP_PREAMBLE_MAX) {
|
||||
cw1200_itp_err(priv, -EINVAL, 5);
|
||||
} else if (itp->data_mode >= ITP_DATA_MAX_MODE) {
|
||||
cw1200_itp_err(priv, -EINVAL, 7);
|
||||
} else if (itp->data_len < ITP_MIN_DATA_SIZE ||
|
||||
itp->data_len > (priv->wsm_caps.input_buffer_size - itp->hdr_len)) {
|
||||
cw1200_itp_err(priv, -EINVAL, 8);
|
||||
} else {
|
||||
cw1200_itp_tx_start(priv);
|
||||
}
|
||||
break;
|
||||
case 5:
|
||||
cw1200_itp_get_version(priv, ITP_CHIP_ID);
|
||||
break;
|
||||
case 6:
|
||||
cw1200_itp_get_version(priv, ITP_FW_VER);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void cw1200_itp_err(struct cw1200_common *priv,
|
||||
int err, int arg)
|
||||
{
|
||||
struct cw1200_itp *itp = &priv->debug->itp;
|
||||
struct sk_buff *skb;
|
||||
static char buf[255];
|
||||
int len;
|
||||
|
||||
len = snprintf(buf, sizeof(buf), "%d,%d\n",
|
||||
err, arg);
|
||||
if (len <= 0)
|
||||
return;
|
||||
|
||||
skb = dev_alloc_skb(len);
|
||||
if (!skb)
|
||||
return;
|
||||
|
||||
skb_trim(skb, 0);
|
||||
skb_put(skb, len);
|
||||
|
||||
memcpy(skb->data, buf, len);
|
||||
skb_queue_tail(&itp->log_queue, skb);
|
||||
wake_up(&itp->read_wait);
|
||||
|
||||
len = sprint_symbol(buf,
|
||||
(unsigned long)__builtin_return_address(0));
|
||||
if (len <= 0)
|
||||
return;
|
||||
pr_debug("[ITP] error %d,%d from %s\n",
|
||||
err, arg, buf);
|
||||
}
|
144
drivers/net/wireless/cw1200/itp.h
Normal file
144
drivers/net/wireless/cw1200/itp.h
Normal file
|
@ -0,0 +1,144 @@
|
|||
/*
|
||||
* ITP code for ST-Ericsson CW1200 mac80211 driver
|
||||
*
|
||||
* Copyright (c) 2011, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef CW1200_ITP_H_INCLUDED
|
||||
#define CW1200_ITP_H_INCLUDED
|
||||
|
||||
struct cw200_common;
|
||||
struct wsm_tx_confirm;
|
||||
struct dentry;
|
||||
|
||||
#ifdef CONFIG_CW1200_ITP
|
||||
|
||||
/*extern*/ struct ieee80211_channel;
|
||||
|
||||
#define TEST_MODE_NO_TEST (0)
|
||||
#define TEST_MODE_RX_TEST (1)
|
||||
#define TEST_MODE_TX_TEST (2)
|
||||
#define ITP_DEFAULT_DA_ADDR {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}
|
||||
#define ITP_MIN_DATA_SIZE 6
|
||||
#define ITP_MAX_DATA_SIZE 1600
|
||||
#define ITP_TIME_THRES_US 10000
|
||||
#define ITP_US_TO_MS(x) ((x)/1000)
|
||||
#define ITP_MS_TO_US(x) ((x)*1000)
|
||||
#define ITP_BUF_SIZE 255
|
||||
|
||||
|
||||
enum cw1200_itp_data_modes {
|
||||
ITP_DATA_ZEROS,
|
||||
ITP_DATA_ONES,
|
||||
ITP_DATA_ZERONES,
|
||||
ITP_DATA_RANDOM,
|
||||
ITP_DATA_MAX_MODE,
|
||||
};
|
||||
|
||||
enum cw1200_itp_version_type {
|
||||
ITP_CHIP_ID,
|
||||
ITP_FW_VER,
|
||||
};
|
||||
|
||||
enum cw1200_itp_preamble_type {
|
||||
ITP_PREAMBLE_LONG,
|
||||
ITP_PREAMBLE_SHORT,
|
||||
ITP_PREAMBLE_OFDM,
|
||||
ITP_PREAMBLE_MIXED,
|
||||
ITP_PREAMBLE_GREENFIELD,
|
||||
ITP_PREAMBLE_MAX,
|
||||
};
|
||||
|
||||
|
||||
struct cw1200_itp {
|
||||
struct cw1200_common *priv;
|
||||
atomic_t open_count;
|
||||
atomic_t awaiting_confirm;
|
||||
struct sk_buff_head log_queue;
|
||||
wait_queue_head_t read_wait;
|
||||
wait_queue_head_t write_wait;
|
||||
wait_queue_head_t close_wait;
|
||||
struct ieee80211_channel *saved_channel;
|
||||
atomic_t stop_tx;
|
||||
struct delayed_work tx_work;
|
||||
struct delayed_work tx_finish;
|
||||
spinlock_t tx_lock;
|
||||
struct timespec last_sent;
|
||||
atomic_t test_mode;
|
||||
int rx_cnt;
|
||||
long rx_rssi;
|
||||
int rx_rssi_max;
|
||||
int rx_rssi_min;
|
||||
unsigned band;
|
||||
unsigned ch;
|
||||
unsigned rate;
|
||||
unsigned preamble;
|
||||
unsigned int number;
|
||||
unsigned data_mode;
|
||||
int interval_us;
|
||||
int power;
|
||||
u8 *data;
|
||||
int hdr_len;
|
||||
int data_len;
|
||||
};
|
||||
|
||||
int cw1200_itp_init(struct cw1200_common *priv);
|
||||
void cw1200_itp_release(struct cw1200_common *priv);
|
||||
|
||||
bool cw1200_is_itp(struct cw1200_common *priv);
|
||||
bool cw1200_itp_rxed(struct cw1200_common *priv, struct sk_buff *skb);
|
||||
void cw1200_itp_wake_up_tx(struct cw1200_common *priv);
|
||||
int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
|
||||
size_t *tx_len, int *burst);
|
||||
bool cw1200_itp_tx_running(struct cw1200_common *priv);
|
||||
|
||||
#else /* CONFIG_CW1200_ITP */
|
||||
|
||||
static inline int cw1200_itp_init(struct cw1200_common *priv)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline void cw1200_itp_release(struct cw1200_common *priv)
|
||||
{
|
||||
}
|
||||
|
||||
static inline bool cw1200_is_itp(struct cw1200_common *priv)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
static inline bool cw1200_itp_rxed(struct cw1200_common *priv,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
static inline void cw1200_itp_consume_txed(struct cw1200_common *priv)
|
||||
{
|
||||
}
|
||||
|
||||
static inline void cw1200_itp_wake_up_tx(struct cw1200_common *priv)
|
||||
{
|
||||
}
|
||||
|
||||
static inline int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
|
||||
size_t *tx_len, int *burst)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline bool cw1200_itp_tx_running(struct cw1200_common *priv)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_CW1200_ITP */
|
||||
|
||||
#endif /* CW1200_ITP_H_INCLUDED */
|
618
drivers/net/wireless/cw1200/main.c
Normal file
618
drivers/net/wireless/cw1200/main.c
Normal file
|
@ -0,0 +1,618 @@
|
|||
/*
|
||||
* mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* Based on:
|
||||
* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
|
||||
* Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
|
||||
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
|
||||
*
|
||||
* Based on:
|
||||
* - the islsm (softmac prism54) driver, which is:
|
||||
* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
|
||||
* - stlc45xx driver
|
||||
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/firmware.h>
|
||||
#include <linux/etherdevice.h>
|
||||
#include <linux/vmalloc.h>
|
||||
#include <linux/random.h>
|
||||
#include <linux/sched.h>
|
||||
#include <net/mac80211.h>
|
||||
|
||||
#include "cw1200.h"
|
||||
#include "txrx.h"
|
||||
#include "sbus.h"
|
||||
#include "fwio.h"
|
||||
#include "hwio.h"
|
||||
#include "bh.h"
|
||||
#include "sta.h"
|
||||
#include "scan.h"
|
||||
#include "debug.h"
|
||||
#include "pm.h"
|
||||
|
||||
MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
|
||||
MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS("cw1200_core");
|
||||
|
||||
/* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
|
||||
static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
|
||||
module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, S_IRUGO);
|
||||
MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
|
||||
|
||||
static char *cw1200_sdd_path;
|
||||
module_param(cw1200_sdd_path, charp, 0644);
|
||||
MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
|
||||
static int cw1200_refclk;
|
||||
module_param(cw1200_refclk, int, 0644);
|
||||
MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
|
||||
|
||||
int cw1200_power_mode = wsm_power_mode_quiescent;
|
||||
module_param(cw1200_power_mode, int, 0644);
|
||||
MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode. 0 == active, 1 == doze, 2 == quiescent (default)");
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
int etf_mode;
|
||||
module_param(etf_mode, int, 0644);
|
||||
MODULE_PARM_DESC(etf_mode, "Enable EngineeringTestingFramework operation");
|
||||
#endif
|
||||
|
||||
#define RATETAB_ENT(_rate, _rateid, _flags) \
|
||||
{ \
|
||||
.bitrate = (_rate), \
|
||||
.hw_value = (_rateid), \
|
||||
.flags = (_flags), \
|
||||
}
|
||||
|
||||
static struct ieee80211_rate cw1200_rates[] = {
|
||||
RATETAB_ENT(10, 0, 0),
|
||||
RATETAB_ENT(20, 1, 0),
|
||||
RATETAB_ENT(55, 2, 0),
|
||||
RATETAB_ENT(110, 3, 0),
|
||||
RATETAB_ENT(60, 6, 0),
|
||||
RATETAB_ENT(90, 7, 0),
|
||||
RATETAB_ENT(120, 8, 0),
|
||||
RATETAB_ENT(180, 9, 0),
|
||||
RATETAB_ENT(240, 10, 0),
|
||||
RATETAB_ENT(360, 11, 0),
|
||||
RATETAB_ENT(480, 12, 0),
|
||||
RATETAB_ENT(540, 13, 0),
|
||||
};
|
||||
|
||||
static struct ieee80211_rate cw1200_mcs_rates[] = {
|
||||
RATETAB_ENT(65, 14, IEEE80211_TX_RC_MCS),
|
||||
RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS),
|
||||
RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS),
|
||||
RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS),
|
||||
RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS),
|
||||
RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS),
|
||||
RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS),
|
||||
RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS),
|
||||
};
|
||||
|
||||
#define cw1200_a_rates (cw1200_rates + 4)
|
||||
#define cw1200_a_rates_size (ARRAY_SIZE(cw1200_rates) - 4)
|
||||
#define cw1200_g_rates (cw1200_rates + 0)
|
||||
#define cw1200_g_rates_size (ARRAY_SIZE(cw1200_rates))
|
||||
#define cw1200_n_rates (cw1200_mcs_rates)
|
||||
#define cw1200_n_rates_size (ARRAY_SIZE(cw1200_mcs_rates))
|
||||
|
||||
|
||||
#define CHAN2G(_channel, _freq, _flags) { \
|
||||
.band = IEEE80211_BAND_2GHZ, \
|
||||
.center_freq = (_freq), \
|
||||
.hw_value = (_channel), \
|
||||
.flags = (_flags), \
|
||||
.max_antenna_gain = 0, \
|
||||
.max_power = 30, \
|
||||
}
|
||||
|
||||
#define CHAN5G(_channel, _flags) { \
|
||||
.band = IEEE80211_BAND_5GHZ, \
|
||||
.center_freq = 5000 + (5 * (_channel)), \
|
||||
.hw_value = (_channel), \
|
||||
.flags = (_flags), \
|
||||
.max_antenna_gain = 0, \
|
||||
.max_power = 30, \
|
||||
}
|
||||
|
||||
static struct ieee80211_channel cw1200_2ghz_chantable[] = {
|
||||
CHAN2G(1, 2412, 0),
|
||||
CHAN2G(2, 2417, 0),
|
||||
CHAN2G(3, 2422, 0),
|
||||
CHAN2G(4, 2427, 0),
|
||||
CHAN2G(5, 2432, 0),
|
||||
CHAN2G(6, 2437, 0),
|
||||
CHAN2G(7, 2442, 0),
|
||||
CHAN2G(8, 2447, 0),
|
||||
CHAN2G(9, 2452, 0),
|
||||
CHAN2G(10, 2457, 0),
|
||||
CHAN2G(11, 2462, 0),
|
||||
CHAN2G(12, 2467, 0),
|
||||
CHAN2G(13, 2472, 0),
|
||||
CHAN2G(14, 2484, 0),
|
||||
};
|
||||
|
||||
static struct ieee80211_channel cw1200_5ghz_chantable[] = {
|
||||
CHAN5G(34, 0), CHAN5G(36, 0),
|
||||
CHAN5G(38, 0), CHAN5G(40, 0),
|
||||
CHAN5G(42, 0), CHAN5G(44, 0),
|
||||
CHAN5G(46, 0), CHAN5G(48, 0),
|
||||
CHAN5G(52, 0), CHAN5G(56, 0),
|
||||
CHAN5G(60, 0), CHAN5G(64, 0),
|
||||
CHAN5G(100, 0), CHAN5G(104, 0),
|
||||
CHAN5G(108, 0), CHAN5G(112, 0),
|
||||
CHAN5G(116, 0), CHAN5G(120, 0),
|
||||
CHAN5G(124, 0), CHAN5G(128, 0),
|
||||
CHAN5G(132, 0), CHAN5G(136, 0),
|
||||
CHAN5G(140, 0), CHAN5G(149, 0),
|
||||
CHAN5G(153, 0), CHAN5G(157, 0),
|
||||
CHAN5G(161, 0), CHAN5G(165, 0),
|
||||
CHAN5G(184, 0), CHAN5G(188, 0),
|
||||
CHAN5G(192, 0), CHAN5G(196, 0),
|
||||
CHAN5G(200, 0), CHAN5G(204, 0),
|
||||
CHAN5G(208, 0), CHAN5G(212, 0),
|
||||
CHAN5G(216, 0),
|
||||
};
|
||||
|
||||
static struct ieee80211_supported_band cw1200_band_2ghz = {
|
||||
.channels = cw1200_2ghz_chantable,
|
||||
.n_channels = ARRAY_SIZE(cw1200_2ghz_chantable),
|
||||
.bitrates = cw1200_g_rates,
|
||||
.n_bitrates = cw1200_g_rates_size,
|
||||
.ht_cap = {
|
||||
.cap = IEEE80211_HT_CAP_GRN_FLD |
|
||||
(1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
|
||||
IEEE80211_HT_CAP_MAX_AMSDU,
|
||||
.ht_supported = 1,
|
||||
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
|
||||
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
|
||||
.mcs = {
|
||||
.rx_mask[0] = 0xFF,
|
||||
.rx_highest = __cpu_to_le16(0x41),
|
||||
.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
|
||||
},
|
||||
},
|
||||
};
|
||||
|
||||
static struct ieee80211_supported_band cw1200_band_5ghz = {
|
||||
.channels = cw1200_5ghz_chantable,
|
||||
.n_channels = ARRAY_SIZE(cw1200_5ghz_chantable),
|
||||
.bitrates = cw1200_a_rates,
|
||||
.n_bitrates = cw1200_a_rates_size,
|
||||
.ht_cap = {
|
||||
.cap = IEEE80211_HT_CAP_GRN_FLD |
|
||||
(1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
|
||||
IEEE80211_HT_CAP_MAX_AMSDU,
|
||||
.ht_supported = 1,
|
||||
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
|
||||
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
|
||||
.mcs = {
|
||||
.rx_mask[0] = 0xFF,
|
||||
.rx_highest = __cpu_to_le16(0x41),
|
||||
.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
|
||||
},
|
||||
},
|
||||
};
|
||||
|
||||
static const unsigned long cw1200_ttl[] = {
|
||||
1 * HZ, /* VO */
|
||||
2 * HZ, /* VI */
|
||||
5 * HZ, /* BE */
|
||||
10 * HZ /* BK */
|
||||
};
|
||||
|
||||
static const struct ieee80211_ops cw1200_ops = {
|
||||
.start = cw1200_start,
|
||||
.stop = cw1200_stop,
|
||||
.add_interface = cw1200_add_interface,
|
||||
.remove_interface = cw1200_remove_interface,
|
||||
.change_interface = cw1200_change_interface,
|
||||
.tx = cw1200_tx,
|
||||
.hw_scan = cw1200_hw_scan,
|
||||
.set_tim = cw1200_set_tim,
|
||||
.sta_notify = cw1200_sta_notify,
|
||||
.sta_add = cw1200_sta_add,
|
||||
.sta_remove = cw1200_sta_remove,
|
||||
.set_key = cw1200_set_key,
|
||||
.set_rts_threshold = cw1200_set_rts_threshold,
|
||||
.config = cw1200_config,
|
||||
.bss_info_changed = cw1200_bss_info_changed,
|
||||
.prepare_multicast = cw1200_prepare_multicast,
|
||||
.configure_filter = cw1200_configure_filter,
|
||||
.conf_tx = cw1200_conf_tx,
|
||||
.get_stats = cw1200_get_stats,
|
||||
.ampdu_action = cw1200_ampdu_action,
|
||||
.flush = cw1200_flush,
|
||||
.suspend = cw1200_wow_suspend,
|
||||
.resume = cw1200_wow_resume,
|
||||
/* Intentionally not offloaded: */
|
||||
/*.channel_switch = cw1200_channel_switch, */
|
||||
/*.remain_on_channel = cw1200_remain_on_channel, */
|
||||
/*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */
|
||||
};
|
||||
|
||||
int cw1200_ba_rx_tids = -1;
|
||||
int cw1200_ba_tx_tids = -1;
|
||||
module_param(cw1200_ba_rx_tids, int, 0644);
|
||||
module_param(cw1200_ba_tx_tids, int, 0644);
|
||||
MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
|
||||
MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
|
||||
|
||||
static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
|
||||
const bool have_5ghz)
|
||||
{
|
||||
int i, band;
|
||||
struct ieee80211_hw *hw;
|
||||
struct cw1200_common *priv;
|
||||
|
||||
hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
|
||||
if (!hw)
|
||||
return NULL;
|
||||
|
||||
priv = hw->priv;
|
||||
priv->hw = hw;
|
||||
priv->hw_type = -1;
|
||||
priv->mode = NL80211_IFTYPE_UNSPECIFIED;
|
||||
priv->rates = cw1200_rates; /* TODO: fetch from FW */
|
||||
priv->mcs_rates = cw1200_n_rates;
|
||||
if (cw1200_ba_rx_tids != -1)
|
||||
priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
|
||||
else
|
||||
priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
|
||||
if (cw1200_ba_tx_tids != -1)
|
||||
priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
|
||||
else
|
||||
priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */
|
||||
|
||||
hw->flags = IEEE80211_HW_SIGNAL_DBM |
|
||||
IEEE80211_HW_SUPPORTS_PS |
|
||||
IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
|
||||
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
|
||||
IEEE80211_HW_SUPPORTS_UAPSD |
|
||||
IEEE80211_HW_CONNECTION_MONITOR |
|
||||
IEEE80211_HW_AMPDU_AGGREGATION |
|
||||
IEEE80211_HW_TX_AMPDU_SETUP_IN_HW |
|
||||
IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC;
|
||||
|
||||
hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
|
||||
BIT(NL80211_IFTYPE_ADHOC) |
|
||||
BIT(NL80211_IFTYPE_AP) |
|
||||
BIT(NL80211_IFTYPE_MESH_POINT) |
|
||||
BIT(NL80211_IFTYPE_P2P_CLIENT) |
|
||||
BIT(NL80211_IFTYPE_P2P_GO);
|
||||
|
||||
/* Support only for limited wowlan functionalities */
|
||||
hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY |
|
||||
WIPHY_WOWLAN_DISCONNECT;
|
||||
hw->wiphy->wowlan.n_patterns = 0;
|
||||
|
||||
hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
|
||||
|
||||
hw->channel_change_time = 1000; /* TODO: find actual value */
|
||||
hw->queues = 4;
|
||||
|
||||
priv->rts_threshold = -1;
|
||||
|
||||
hw->max_rates = 8;
|
||||
hw->max_rate_tries = 15;
|
||||
hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
|
||||
8; /* TKIP IV */
|
||||
|
||||
hw->sta_data_size = sizeof(struct cw1200_sta_priv);
|
||||
|
||||
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &cw1200_band_2ghz;
|
||||
if (have_5ghz)
|
||||
hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &cw1200_band_5ghz;
|
||||
|
||||
/* Channel params have to be cleared before registering wiphy again */
|
||||
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
|
||||
struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
|
||||
if (!sband)
|
||||
continue;
|
||||
for (i = 0; i < sband->n_channels; i++) {
|
||||
sband->channels[i].flags = 0;
|
||||
sband->channels[i].max_antenna_gain = 0;
|
||||
sband->channels[i].max_power = 30;
|
||||
}
|
||||
}
|
||||
|
||||
hw->wiphy->max_scan_ssids = 2;
|
||||
hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
|
||||
|
||||
if (macaddr)
|
||||
SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
|
||||
else
|
||||
SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);
|
||||
|
||||
/* Fix up mac address if necessary */
|
||||
if (hw->wiphy->perm_addr[3] == 0 &&
|
||||
hw->wiphy->perm_addr[4] == 0 &&
|
||||
hw->wiphy->perm_addr[5] == 0) {
|
||||
get_random_bytes(&hw->wiphy->perm_addr[3], 3);
|
||||
}
|
||||
|
||||
mutex_init(&priv->wsm_cmd_mux);
|
||||
mutex_init(&priv->conf_mutex);
|
||||
priv->workqueue = create_singlethread_workqueue("cw1200_wq");
|
||||
sema_init(&priv->scan.lock, 1);
|
||||
INIT_WORK(&priv->scan.work, cw1200_scan_work);
|
||||
INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
|
||||
INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
|
||||
INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
|
||||
cw1200_clear_recent_scan_work);
|
||||
INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout);
|
||||
INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work);
|
||||
INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work);
|
||||
INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work);
|
||||
INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work);
|
||||
spin_lock_init(&priv->event_queue_lock);
|
||||
INIT_LIST_HEAD(&priv->event_queue);
|
||||
INIT_WORK(&priv->event_handler, cw1200_event_handler);
|
||||
INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work);
|
||||
INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work);
|
||||
spin_lock_init(&priv->bss_loss_lock);
|
||||
spin_lock_init(&priv->ps_state_lock);
|
||||
INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work);
|
||||
INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work);
|
||||
INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work);
|
||||
INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work);
|
||||
INIT_WORK(&priv->link_id_work, cw1200_link_id_work);
|
||||
INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work);
|
||||
INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset);
|
||||
INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work);
|
||||
INIT_WORK(&priv->set_beacon_wakeup_period_work,
|
||||
cw1200_set_beacon_wakeup_period_work);
|
||||
init_timer(&priv->mcast_timeout);
|
||||
priv->mcast_timeout.data = (unsigned long)priv;
|
||||
priv->mcast_timeout.function = cw1200_mcast_timeout;
|
||||
|
||||
if (cw1200_queue_stats_init(&priv->tx_queue_stats,
|
||||
CW1200_LINK_ID_MAX,
|
||||
cw1200_skb_dtor,
|
||||
priv)) {
|
||||
ieee80211_free_hw(hw);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
for (i = 0; i < 4; ++i) {
|
||||
if (cw1200_queue_init(&priv->tx_queue[i],
|
||||
&priv->tx_queue_stats, i, 16,
|
||||
cw1200_ttl[i])) {
|
||||
for (; i > 0; i--)
|
||||
cw1200_queue_deinit(&priv->tx_queue[i - 1]);
|
||||
cw1200_queue_stats_deinit(&priv->tx_queue_stats);
|
||||
ieee80211_free_hw(hw);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
init_waitqueue_head(&priv->channel_switch_done);
|
||||
init_waitqueue_head(&priv->wsm_cmd_wq);
|
||||
init_waitqueue_head(&priv->wsm_startup_done);
|
||||
init_waitqueue_head(&priv->ps_mode_switch_done);
|
||||
wsm_buf_init(&priv->wsm_cmd_buf);
|
||||
spin_lock_init(&priv->wsm_cmd.lock);
|
||||
priv->wsm_cmd.done = 1;
|
||||
tx_policy_init(priv);
|
||||
|
||||
return hw;
|
||||
}
|
||||
|
||||
static int cw1200_register_common(struct ieee80211_hw *dev)
|
||||
{
|
||||
struct cw1200_common *priv = dev->priv;
|
||||
int err;
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
if (etf_mode)
|
||||
goto done;
|
||||
#endif
|
||||
|
||||
err = cw1200_pm_init(&priv->pm_state, priv);
|
||||
if (err) {
|
||||
pr_err("Cannot init PM. (%d).\n",
|
||||
err);
|
||||
return err;
|
||||
}
|
||||
|
||||
err = ieee80211_register_hw(dev);
|
||||
if (err) {
|
||||
pr_err("Cannot register device (%d).\n",
|
||||
err);
|
||||
cw1200_pm_deinit(&priv->pm_state);
|
||||
return err;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
done:
|
||||
#endif
|
||||
cw1200_debug_init(priv);
|
||||
|
||||
pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void cw1200_free_common(struct ieee80211_hw *dev)
|
||||
{
|
||||
ieee80211_free_hw(dev);
|
||||
}
|
||||
|
||||
static void cw1200_unregister_common(struct ieee80211_hw *dev)
|
||||
{
|
||||
struct cw1200_common *priv = dev->priv;
|
||||
int i;
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
if (!etf_mode) {
|
||||
#endif
|
||||
ieee80211_unregister_hw(dev);
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
}
|
||||
#endif
|
||||
|
||||
del_timer_sync(&priv->mcast_timeout);
|
||||
cw1200_unregister_bh(priv);
|
||||
|
||||
cw1200_debug_release(priv);
|
||||
|
||||
mutex_destroy(&priv->conf_mutex);
|
||||
|
||||
wsm_buf_deinit(&priv->wsm_cmd_buf);
|
||||
|
||||
destroy_workqueue(priv->workqueue);
|
||||
priv->workqueue = NULL;
|
||||
|
||||
if (priv->sdd) {
|
||||
release_firmware(priv->sdd);
|
||||
priv->sdd = NULL;
|
||||
}
|
||||
|
||||
for (i = 0; i < 4; ++i)
|
||||
cw1200_queue_deinit(&priv->tx_queue[i]);
|
||||
|
||||
cw1200_queue_stats_deinit(&priv->tx_queue_stats);
|
||||
cw1200_pm_deinit(&priv->pm_state);
|
||||
}
|
||||
|
||||
/* Clock is in KHz */
|
||||
u32 cw1200_dpll_from_clk(u16 clk_khz)
|
||||
{
|
||||
switch (clk_khz) {
|
||||
case 0x32C8: /* 13000 KHz */
|
||||
return 0x1D89D241;
|
||||
case 0x3E80: /* 16000 KHz */
|
||||
return 0x000001E1;
|
||||
case 0x41A0: /* 16800 KHz */
|
||||
return 0x124931C1;
|
||||
case 0x4B00: /* 19200 KHz */
|
||||
return 0x00000191;
|
||||
case 0x5DC0: /* 24000 KHz */
|
||||
return 0x00000141;
|
||||
case 0x6590: /* 26000 KHz */
|
||||
return 0x0EC4F121;
|
||||
case 0x8340: /* 33600 KHz */
|
||||
return 0x092490E1;
|
||||
case 0x9600: /* 38400 KHz */
|
||||
return 0x100010C1;
|
||||
case 0x9C40: /* 40000 KHz */
|
||||
return 0x000000C1;
|
||||
case 0xBB80: /* 48000 KHz */
|
||||
return 0x000000A1;
|
||||
case 0xCB20: /* 52000 KHz */
|
||||
return 0x07627091;
|
||||
default:
|
||||
pr_err("Unknown Refclk freq (0x%04x), using 2600KHz\n",
|
||||
clk_khz);
|
||||
return 0x0EC4F121;
|
||||
}
|
||||
}
|
||||
|
||||
int cw1200_core_probe(const struct sbus_ops *sbus_ops,
|
||||
struct sbus_priv *sbus,
|
||||
struct device *pdev,
|
||||
struct cw1200_common **core,
|
||||
int ref_clk, const u8 *macaddr,
|
||||
const char *sdd_path, bool have_5ghz)
|
||||
{
|
||||
int err = -EINVAL;
|
||||
struct ieee80211_hw *dev;
|
||||
struct cw1200_common *priv;
|
||||
struct wsm_operational_mode mode = {
|
||||
.power_mode = cw1200_power_mode,
|
||||
.disable_more_flag_usage = true,
|
||||
};
|
||||
|
||||
dev = cw1200_init_common(macaddr, have_5ghz);
|
||||
if (!dev)
|
||||
goto err;
|
||||
|
||||
priv = dev->priv;
|
||||
priv->hw_refclk = ref_clk;
|
||||
if (cw1200_refclk)
|
||||
priv->hw_refclk = cw1200_refclk;
|
||||
|
||||
priv->sdd_path = (char *)sdd_path;
|
||||
if (cw1200_sdd_path)
|
||||
priv->sdd_path = cw1200_sdd_path;
|
||||
|
||||
priv->sbus_ops = sbus_ops;
|
||||
priv->sbus_priv = sbus;
|
||||
priv->pdev = pdev;
|
||||
SET_IEEE80211_DEV(priv->hw, pdev);
|
||||
|
||||
/* Pass struct cw1200_common back up */
|
||||
*core = priv;
|
||||
|
||||
err = cw1200_register_bh(priv);
|
||||
if (err)
|
||||
goto err1;
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
if (etf_mode)
|
||||
goto skip_fw;
|
||||
#endif
|
||||
|
||||
err = cw1200_load_firmware(priv);
|
||||
if (err)
|
||||
goto err2;
|
||||
|
||||
if (wait_event_interruptible_timeout(priv->wsm_startup_done,
|
||||
priv->firmware_ready,
|
||||
3*HZ) <= 0) {
|
||||
/* TODO: Need to find how to reset device
|
||||
in QUEUE mode properly.
|
||||
*/
|
||||
pr_err("Timeout waiting on device startup\n");
|
||||
err = -ETIMEDOUT;
|
||||
goto err2;
|
||||
}
|
||||
|
||||
/* Set low-power mode. */
|
||||
wsm_set_operational_mode(priv, &mode);
|
||||
|
||||
/* Enable multi-TX confirmation */
|
||||
wsm_use_multi_tx_conf(priv, true);
|
||||
|
||||
#ifdef CONFIG_CW1200_ETF
|
||||
skip_fw:
|
||||
#endif
|
||||
err = cw1200_register_common(dev);
|
||||
if (err)
|
||||
goto err2;
|
||||
|
||||
return err;
|
||||
|
||||
err2:
|
||||
cw1200_unregister_bh(priv);
|
||||
err1:
|
||||
cw1200_free_common(dev);
|
||||
err:
|
||||
*core = NULL;
|
||||
return err;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cw1200_core_probe);
|
||||
|
||||
void cw1200_core_release(struct cw1200_common *self)
|
||||
{
|
||||
/* Disable device interrupts */
|
||||
self->sbus_ops->lock(self->sbus_priv);
|
||||
__cw1200_irq_enable(self, 0);
|
||||
self->sbus_ops->unlock(self->sbus_priv);
|
||||
|
||||
/* And then clean up */
|
||||
cw1200_unregister_common(self->hw);
|
||||
cw1200_free_common(self->hw);
|
||||
return;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cw1200_core_release);
|
367
drivers/net/wireless/cw1200/pm.c
Normal file
367
drivers/net/wireless/cw1200/pm.c
Normal file
|
@ -0,0 +1,367 @@
|
|||
/*
|
||||
* Mac80211 power management API for ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2011, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/if_ether.h>
|
||||
#include "cw1200.h"
|
||||
#include "pm.h"
|
||||
#include "sta.h"
|
||||
#include "bh.h"
|
||||
#include "sbus.h"
|
||||
|
||||
#define CW1200_BEACON_SKIPPING_MULTIPLIER 3
|
||||
|
||||
struct cw1200_udp_port_filter {
|
||||
struct wsm_udp_port_filter_hdr hdr;
|
||||
/* Up to 4 filters are allowed. */
|
||||
struct wsm_udp_port_filter filters[WSM_MAX_FILTER_ELEMENTS];
|
||||
} __packed;
|
||||
|
||||
struct cw1200_ether_type_filter {
|
||||
struct wsm_ether_type_filter_hdr hdr;
|
||||
/* Up to 4 filters are allowed. */
|
||||
struct wsm_ether_type_filter filters[WSM_MAX_FILTER_ELEMENTS];
|
||||
} __packed;
|
||||
|
||||
static struct cw1200_udp_port_filter cw1200_udp_port_filter_on = {
|
||||
.hdr.num = 2,
|
||||
.filters = {
|
||||
[0] = {
|
||||
.action = WSM_FILTER_ACTION_FILTER_OUT,
|
||||
.type = WSM_FILTER_PORT_TYPE_DST,
|
||||
.port = __cpu_to_le16(67), /* DHCP Bootps */
|
||||
},
|
||||
[1] = {
|
||||
.action = WSM_FILTER_ACTION_FILTER_OUT,
|
||||
.type = WSM_FILTER_PORT_TYPE_DST,
|
||||
.port = __cpu_to_le16(68), /* DHCP Bootpc */
|
||||
},
|
||||
}
|
||||
};
|
||||
|
||||
static struct wsm_udp_port_filter_hdr cw1200_udp_port_filter_off = {
|
||||
.num = 0,
|
||||
};
|
||||
|
||||
#ifndef ETH_P_WAPI
|
||||
#define ETH_P_WAPI 0x88B4
|
||||
#endif
|
||||
|
||||
static struct cw1200_ether_type_filter cw1200_ether_type_filter_on = {
|
||||
.hdr.num = 4,
|
||||
.filters = {
|
||||
[0] = {
|
||||
.action = WSM_FILTER_ACTION_FILTER_IN,
|
||||
.type = __cpu_to_le16(ETH_P_IP),
|
||||
},
|
||||
[1] = {
|
||||
.action = WSM_FILTER_ACTION_FILTER_IN,
|
||||
.type = __cpu_to_le16(ETH_P_PAE),
|
||||
},
|
||||
[2] = {
|
||||
.action = WSM_FILTER_ACTION_FILTER_IN,
|
||||
.type = __cpu_to_le16(ETH_P_WAPI),
|
||||
},
|
||||
[3] = {
|
||||
.action = WSM_FILTER_ACTION_FILTER_IN,
|
||||
.type = __cpu_to_le16(ETH_P_ARP),
|
||||
},
|
||||
},
|
||||
};
|
||||
|
||||
static struct wsm_ether_type_filter_hdr cw1200_ether_type_filter_off = {
|
||||
.num = 0,
|
||||
};
|
||||
|
||||
/* private */
|
||||
struct cw1200_suspend_state {
|
||||
unsigned long bss_loss_tmo;
|
||||
unsigned long join_tmo;
|
||||
unsigned long direct_probe;
|
||||
unsigned long link_id_gc;
|
||||
bool beacon_skipping;
|
||||
u8 prev_ps_mode;
|
||||
};
|
||||
|
||||
static void cw1200_pm_stay_awake_tmo(unsigned long arg)
|
||||
{
|
||||
/* XXX what's the point of this ? */
|
||||
}
|
||||
|
||||
int cw1200_pm_init(struct cw1200_pm_state *pm,
|
||||
struct cw1200_common *priv)
|
||||
{
|
||||
spin_lock_init(&pm->lock);
|
||||
|
||||
init_timer(&pm->stay_awake);
|
||||
pm->stay_awake.data = (unsigned long)pm;
|
||||
pm->stay_awake.function = cw1200_pm_stay_awake_tmo;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void cw1200_pm_deinit(struct cw1200_pm_state *pm)
|
||||
{
|
||||
del_timer_sync(&pm->stay_awake);
|
||||
}
|
||||
|
||||
void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
|
||||
unsigned long tmo)
|
||||
{
|
||||
long cur_tmo;
|
||||
spin_lock_bh(&pm->lock);
|
||||
cur_tmo = pm->stay_awake.expires - jiffies;
|
||||
if (!timer_pending(&pm->stay_awake) || cur_tmo < (long)tmo)
|
||||
mod_timer(&pm->stay_awake, jiffies + tmo);
|
||||
spin_unlock_bh(&pm->lock);
|
||||
}
|
||||
|
||||
static long cw1200_suspend_work(struct delayed_work *work)
|
||||
{
|
||||
int ret = cancel_delayed_work(work);
|
||||
long tmo;
|
||||
if (ret > 0) {
|
||||
/* Timer is pending */
|
||||
tmo = work->timer.expires - jiffies;
|
||||
if (tmo < 0)
|
||||
tmo = 0;
|
||||
} else {
|
||||
tmo = -1;
|
||||
}
|
||||
return tmo;
|
||||
}
|
||||
|
||||
static int cw1200_resume_work(struct cw1200_common *priv,
|
||||
struct delayed_work *work,
|
||||
unsigned long tmo)
|
||||
{
|
||||
if ((long)tmo < 0)
|
||||
return 1;
|
||||
|
||||
return queue_delayed_work(priv->workqueue, work, tmo);
|
||||
}
|
||||
|
||||
int cw1200_can_suspend(struct cw1200_common *priv)
|
||||
{
|
||||
if (atomic_read(&priv->bh_rx)) {
|
||||
wiphy_dbg(priv->hw->wiphy, "Suspend interrupted.\n");
|
||||
return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cw1200_can_suspend);
|
||||
|
||||
int cw1200_wow_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
|
||||
{
|
||||
struct cw1200_common *priv = hw->priv;
|
||||
struct cw1200_pm_state *pm_state = &priv->pm_state;
|
||||
struct cw1200_suspend_state *state;
|
||||
int ret;
|
||||
|
||||
spin_lock_bh(&pm_state->lock);
|
||||
ret = timer_pending(&pm_state->stay_awake);
|
||||
spin_unlock_bh(&pm_state->lock);
|
||||
if (ret)
|
||||
return -EAGAIN;
|
||||
|
||||
/* Do not suspend when datapath is not idle */
|
||||
if (priv->tx_queue_stats.num_queued)
|
||||
return -EBUSY;
|
||||
|
||||
/* Make sure there is no configuration requests in progress. */
|
||||
if (!mutex_trylock(&priv->conf_mutex))
|
||||
return -EBUSY;
|
||||
|
||||
/* Ensure pending operations are done.
|
||||
* Note also that wow_suspend must return in ~2.5sec, before
|
||||
* watchdog is triggered.
|
||||
*/
|
||||
if (priv->channel_switch_in_progress)
|
||||
goto revert1;
|
||||
|
||||
/* Do not suspend when join is pending */
|
||||
if (priv->join_pending)
|
||||
goto revert1;
|
||||
|
||||
/* Do not suspend when scanning */
|
||||
if (down_trylock(&priv->scan.lock))
|
||||
goto revert1;
|
||||
|
||||
/* Lock TX. */
|
||||
wsm_lock_tx_async(priv);
|
||||
|
||||
/* Wait to avoid possible race with bh code.
|
||||
* But do not wait too long...
|
||||
*/
|
||||
if (wait_event_timeout(priv->bh_evt_wq,
|
||||
!priv->hw_bufs_used, HZ / 10) <= 0)
|
||||
goto revert2;
|
||||
|
||||
/* Set UDP filter */
|
||||
wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_on.hdr);
|
||||
|
||||
/* Set ethernet frame type filter */
|
||||
wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_on.hdr);
|
||||
|
||||
/* Allocate state */
|
||||
state = kzalloc(sizeof(struct cw1200_suspend_state), GFP_KERNEL);
|
||||
if (!state)
|
||||
goto revert3;
|
||||
|
||||
/* Change to legacy PS while going to suspend */
|
||||
if (!priv->vif->p2p &&
|
||||
priv->join_status == CW1200_JOIN_STATUS_STA &&
|
||||
priv->powersave_mode.mode != WSM_PSM_PS) {
|
||||
state->prev_ps_mode = priv->powersave_mode.mode;
|
||||
priv->powersave_mode.mode = WSM_PSM_PS;
|
||||
cw1200_set_pm(priv, &priv->powersave_mode);
|
||||
if (wait_event_interruptible_timeout(priv->ps_mode_switch_done,
|
||||
!priv->ps_mode_switch_in_progress, 1*HZ) <= 0) {
|
||||
goto revert3;
|
||||
}
|
||||
}
|
||||
|
||||
/* Store delayed work states. */
|
||||
state->bss_loss_tmo =
|
||||
cw1200_suspend_work(&priv->bss_loss_work);
|
||||
state->join_tmo =
|
||||
cw1200_suspend_work(&priv->join_timeout);
|
||||
state->direct_probe =
|
||||
cw1200_suspend_work(&priv->scan.probe_work);
|
||||
state->link_id_gc =
|
||||
cw1200_suspend_work(&priv->link_id_gc_work);
|
||||
|
||||
cancel_delayed_work_sync(&priv->clear_recent_scan_work);
|
||||
atomic_set(&priv->recent_scan, 0);
|
||||
|
||||
/* Enable beacon skipping */
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_STA &&
|
||||
priv->join_dtim_period &&
|
||||
!priv->has_multicast_subscription) {
|
||||
state->beacon_skipping = true;
|
||||
wsm_set_beacon_wakeup_period(priv,
|
||||
priv->join_dtim_period,
|
||||
CW1200_BEACON_SKIPPING_MULTIPLIER * priv->join_dtim_period);
|
||||
}
|
||||
|
||||
/* Stop serving thread */
|
||||
if (cw1200_bh_suspend(priv))
|
||||
goto revert4;
|
||||
|
||||
ret = timer_pending(&priv->mcast_timeout);
|
||||
if (ret)
|
||||
goto revert5;
|
||||
|
||||
/* Store suspend state */
|
||||
pm_state->suspend_state = state;
|
||||
|
||||
/* Enable IRQ wake */
|
||||
ret = priv->sbus_ops->power_mgmt(priv->sbus_priv, true);
|
||||
if (ret) {
|
||||
wiphy_err(priv->hw->wiphy,
|
||||
"PM request failed: %d. WoW is disabled.\n", ret);
|
||||
cw1200_wow_resume(hw);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
/* Force resume if event is coming from the device. */
|
||||
if (atomic_read(&priv->bh_rx)) {
|
||||
cw1200_wow_resume(hw);
|
||||
return -EAGAIN;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
revert5:
|
||||
WARN_ON(cw1200_bh_resume(priv));
|
||||
revert4:
|
||||
cw1200_resume_work(priv, &priv->bss_loss_work,
|
||||
state->bss_loss_tmo);
|
||||
cw1200_resume_work(priv, &priv->join_timeout,
|
||||
state->join_tmo);
|
||||
cw1200_resume_work(priv, &priv->scan.probe_work,
|
||||
state->direct_probe);
|
||||
cw1200_resume_work(priv, &priv->link_id_gc_work,
|
||||
state->link_id_gc);
|
||||
kfree(state);
|
||||
revert3:
|
||||
wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_off);
|
||||
wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_off);
|
||||
revert2:
|
||||
wsm_unlock_tx(priv);
|
||||
up(&priv->scan.lock);
|
||||
revert1:
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
int cw1200_wow_resume(struct ieee80211_hw *hw)
|
||||
{
|
||||
struct cw1200_common *priv = hw->priv;
|
||||
struct cw1200_pm_state *pm_state = &priv->pm_state;
|
||||
struct cw1200_suspend_state *state;
|
||||
|
||||
state = pm_state->suspend_state;
|
||||
pm_state->suspend_state = NULL;
|
||||
|
||||
/* Disable IRQ wake */
|
||||
priv->sbus_ops->power_mgmt(priv->sbus_priv, false);
|
||||
|
||||
/* Scan.lock must be released before BH is resumed other way
|
||||
* in case when BSS_LOST command arrived the processing of the
|
||||
* command will be delayed.
|
||||
*/
|
||||
up(&priv->scan.lock);
|
||||
|
||||
/* Resume BH thread */
|
||||
WARN_ON(cw1200_bh_resume(priv));
|
||||
|
||||
/* Restores previous PS mode */
|
||||
if (!priv->vif->p2p && priv->join_status == CW1200_JOIN_STATUS_STA) {
|
||||
priv->powersave_mode.mode = state->prev_ps_mode;
|
||||
cw1200_set_pm(priv, &priv->powersave_mode);
|
||||
}
|
||||
|
||||
if (state->beacon_skipping) {
|
||||
wsm_set_beacon_wakeup_period(priv, priv->beacon_int *
|
||||
priv->join_dtim_period >
|
||||
MAX_BEACON_SKIP_TIME_MS ? 1 :
|
||||
priv->join_dtim_period, 0);
|
||||
state->beacon_skipping = false;
|
||||
}
|
||||
|
||||
/* Resume delayed work */
|
||||
cw1200_resume_work(priv, &priv->bss_loss_work,
|
||||
state->bss_loss_tmo);
|
||||
cw1200_resume_work(priv, &priv->join_timeout,
|
||||
state->join_tmo);
|
||||
cw1200_resume_work(priv, &priv->scan.probe_work,
|
||||
state->direct_probe);
|
||||
cw1200_resume_work(priv, &priv->link_id_gc_work,
|
||||
state->link_id_gc);
|
||||
|
||||
/* Remove UDP port filter */
|
||||
wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_off);
|
||||
|
||||
/* Remove ethernet frame type filter */
|
||||
wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_off);
|
||||
|
||||
/* Unlock datapath */
|
||||
wsm_unlock_tx(priv);
|
||||
|
||||
/* Unlock configuration mutex */
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
|
||||
/* Free memory */
|
||||
kfree(state);
|
||||
|
||||
return 0;
|
||||
}
|
38
drivers/net/wireless/cw1200/pm.h
Normal file
38
drivers/net/wireless/cw1200/pm.h
Normal file
|
@ -0,0 +1,38 @@
|
|||
/*
|
||||
* Mac80211 power management interface for ST-Ericsson CW1200 mac80211 drivers
|
||||
*
|
||||
* Copyright (c) 2011, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef PM_H_INCLUDED
|
||||
#define PM_H_INCLUDED
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* mac80211 API */
|
||||
|
||||
/* extern */ struct cw1200_common;
|
||||
/* private */ struct cw1200_suspend_state;
|
||||
|
||||
struct cw1200_pm_state {
|
||||
struct cw1200_suspend_state *suspend_state;
|
||||
struct timer_list stay_awake;
|
||||
struct platform_device *pm_dev;
|
||||
spinlock_t lock; /* Protect access */
|
||||
};
|
||||
|
||||
int cw1200_pm_init(struct cw1200_pm_state *pm,
|
||||
struct cw1200_common *priv);
|
||||
void cw1200_pm_deinit(struct cw1200_pm_state *pm);
|
||||
void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
|
||||
unsigned long tmo);
|
||||
int cw1200_wow_suspend(struct ieee80211_hw *hw,
|
||||
struct cfg80211_wowlan *wowlan);
|
||||
int cw1200_wow_resume(struct ieee80211_hw *hw);
|
||||
int cw1200_can_suspend(struct cw1200_common *priv);
|
||||
|
||||
#endif
|
583
drivers/net/wireless/cw1200/queue.c
Normal file
583
drivers/net/wireless/cw1200/queue.c
Normal file
|
@ -0,0 +1,583 @@
|
|||
/*
|
||||
* O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <net/mac80211.h>
|
||||
#include <linux/sched.h>
|
||||
#include "queue.h"
|
||||
#include "cw1200.h"
|
||||
#include "debug.h"
|
||||
|
||||
/* private */ struct cw1200_queue_item
|
||||
{
|
||||
struct list_head head;
|
||||
struct sk_buff *skb;
|
||||
u32 packet_id;
|
||||
unsigned long queue_timestamp;
|
||||
unsigned long xmit_timestamp;
|
||||
struct cw1200_txpriv txpriv;
|
||||
u8 generation;
|
||||
};
|
||||
|
||||
static inline void __cw1200_queue_lock(struct cw1200_queue *queue)
|
||||
{
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
if (queue->tx_locked_cnt++ == 0) {
|
||||
pr_debug("[TX] Queue %d is locked.\n",
|
||||
queue->queue_id);
|
||||
ieee80211_stop_queue(stats->priv->hw, queue->queue_id);
|
||||
}
|
||||
}
|
||||
|
||||
static inline void __cw1200_queue_unlock(struct cw1200_queue *queue)
|
||||
{
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
BUG_ON(!queue->tx_locked_cnt);
|
||||
if (--queue->tx_locked_cnt == 0) {
|
||||
pr_debug("[TX] Queue %d is unlocked.\n",
|
||||
queue->queue_id);
|
||||
ieee80211_wake_queue(stats->priv->hw, queue->queue_id);
|
||||
}
|
||||
}
|
||||
|
||||
static inline void cw1200_queue_parse_id(u32 packet_id, u8 *queue_generation,
|
||||
u8 *queue_id, u8 *item_generation,
|
||||
u8 *item_id)
|
||||
{
|
||||
*item_id = (packet_id >> 0) & 0xFF;
|
||||
*item_generation = (packet_id >> 8) & 0xFF;
|
||||
*queue_id = (packet_id >> 16) & 0xFF;
|
||||
*queue_generation = (packet_id >> 24) & 0xFF;
|
||||
}
|
||||
|
||||
static inline u32 cw1200_queue_mk_packet_id(u8 queue_generation, u8 queue_id,
|
||||
u8 item_generation, u8 item_id)
|
||||
{
|
||||
return ((u32)item_id << 0) |
|
||||
((u32)item_generation << 8) |
|
||||
((u32)queue_id << 16) |
|
||||
((u32)queue_generation << 24);
|
||||
}
|
||||
|
||||
static void cw1200_queue_post_gc(struct cw1200_queue_stats *stats,
|
||||
struct list_head *gc_list)
|
||||
{
|
||||
struct cw1200_queue_item *item, *tmp;
|
||||
|
||||
list_for_each_entry_safe(item, tmp, gc_list, head) {
|
||||
list_del(&item->head);
|
||||
stats->skb_dtor(stats->priv, item->skb, &item->txpriv);
|
||||
kfree(item);
|
||||
}
|
||||
}
|
||||
|
||||
static void cw1200_queue_register_post_gc(struct list_head *gc_list,
|
||||
struct cw1200_queue_item *item)
|
||||
{
|
||||
struct cw1200_queue_item *gc_item;
|
||||
gc_item = kmalloc(sizeof(struct cw1200_queue_item),
|
||||
GFP_ATOMIC);
|
||||
BUG_ON(!gc_item);
|
||||
memcpy(gc_item, item, sizeof(struct cw1200_queue_item));
|
||||
list_add_tail(&gc_item->head, gc_list);
|
||||
}
|
||||
|
||||
static void __cw1200_queue_gc(struct cw1200_queue *queue,
|
||||
struct list_head *head,
|
||||
bool unlock)
|
||||
{
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
struct cw1200_queue_item *item = NULL, *tmp;
|
||||
bool wakeup_stats = false;
|
||||
|
||||
list_for_each_entry_safe(item, tmp, &queue->queue, head) {
|
||||
if (jiffies - item->queue_timestamp < queue->ttl)
|
||||
break;
|
||||
--queue->num_queued;
|
||||
--queue->link_map_cache[item->txpriv.link_id];
|
||||
spin_lock_bh(&stats->lock);
|
||||
--stats->num_queued;
|
||||
if (!--stats->link_map_cache[item->txpriv.link_id])
|
||||
wakeup_stats = true;
|
||||
spin_unlock_bh(&stats->lock);
|
||||
cw1200_debug_tx_ttl(stats->priv);
|
||||
cw1200_queue_register_post_gc(head, item);
|
||||
item->skb = NULL;
|
||||
list_move_tail(&item->head, &queue->free_pool);
|
||||
}
|
||||
|
||||
if (wakeup_stats)
|
||||
wake_up(&stats->wait_link_id_empty);
|
||||
|
||||
if (queue->overfull) {
|
||||
if (queue->num_queued <= (queue->capacity >> 1)) {
|
||||
queue->overfull = false;
|
||||
if (unlock)
|
||||
__cw1200_queue_unlock(queue);
|
||||
} else if (item) {
|
||||
unsigned long tmo = item->queue_timestamp + queue->ttl;
|
||||
mod_timer(&queue->gc, tmo);
|
||||
cw1200_pm_stay_awake(&stats->priv->pm_state,
|
||||
tmo - jiffies);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void cw1200_queue_gc(unsigned long arg)
|
||||
{
|
||||
LIST_HEAD(list);
|
||||
struct cw1200_queue *queue =
|
||||
(struct cw1200_queue *)arg;
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
__cw1200_queue_gc(queue, &list, true);
|
||||
spin_unlock_bh(&queue->lock);
|
||||
cw1200_queue_post_gc(queue->stats, &list);
|
||||
}
|
||||
|
||||
int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
|
||||
size_t map_capacity,
|
||||
cw1200_queue_skb_dtor_t skb_dtor,
|
||||
struct cw1200_common *priv)
|
||||
{
|
||||
memset(stats, 0, sizeof(*stats));
|
||||
stats->map_capacity = map_capacity;
|
||||
stats->skb_dtor = skb_dtor;
|
||||
stats->priv = priv;
|
||||
spin_lock_init(&stats->lock);
|
||||
init_waitqueue_head(&stats->wait_link_id_empty);
|
||||
|
||||
stats->link_map_cache = kzalloc(sizeof(int) * map_capacity,
|
||||
GFP_KERNEL);
|
||||
if (!stats->link_map_cache)
|
||||
return -ENOMEM;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cw1200_queue_init(struct cw1200_queue *queue,
|
||||
struct cw1200_queue_stats *stats,
|
||||
u8 queue_id,
|
||||
size_t capacity,
|
||||
unsigned long ttl)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
memset(queue, 0, sizeof(*queue));
|
||||
queue->stats = stats;
|
||||
queue->capacity = capacity;
|
||||
queue->queue_id = queue_id;
|
||||
queue->ttl = ttl;
|
||||
INIT_LIST_HEAD(&queue->queue);
|
||||
INIT_LIST_HEAD(&queue->pending);
|
||||
INIT_LIST_HEAD(&queue->free_pool);
|
||||
spin_lock_init(&queue->lock);
|
||||
init_timer(&queue->gc);
|
||||
queue->gc.data = (unsigned long)queue;
|
||||
queue->gc.function = cw1200_queue_gc;
|
||||
|
||||
queue->pool = kzalloc(sizeof(struct cw1200_queue_item) * capacity,
|
||||
GFP_KERNEL);
|
||||
if (!queue->pool)
|
||||
return -ENOMEM;
|
||||
|
||||
queue->link_map_cache = kzalloc(sizeof(int) * stats->map_capacity,
|
||||
GFP_KERNEL);
|
||||
if (!queue->link_map_cache) {
|
||||
kfree(queue->pool);
|
||||
queue->pool = NULL;
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
for (i = 0; i < capacity; ++i)
|
||||
list_add_tail(&queue->pool[i].head, &queue->free_pool);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cw1200_queue_clear(struct cw1200_queue *queue)
|
||||
{
|
||||
int i;
|
||||
LIST_HEAD(gc_list);
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
struct cw1200_queue_item *item, *tmp;
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
queue->generation++;
|
||||
list_splice_tail_init(&queue->queue, &queue->pending);
|
||||
list_for_each_entry_safe(item, tmp, &queue->pending, head) {
|
||||
WARN_ON(!item->skb);
|
||||
cw1200_queue_register_post_gc(&gc_list, item);
|
||||
item->skb = NULL;
|
||||
list_move_tail(&item->head, &queue->free_pool);
|
||||
}
|
||||
queue->num_queued = 0;
|
||||
queue->num_pending = 0;
|
||||
|
||||
spin_lock_bh(&stats->lock);
|
||||
for (i = 0; i < stats->map_capacity; ++i) {
|
||||
stats->num_queued -= queue->link_map_cache[i];
|
||||
stats->link_map_cache[i] -= queue->link_map_cache[i];
|
||||
queue->link_map_cache[i] = 0;
|
||||
}
|
||||
spin_unlock_bh(&stats->lock);
|
||||
if (queue->overfull) {
|
||||
queue->overfull = false;
|
||||
__cw1200_queue_unlock(queue);
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
wake_up(&stats->wait_link_id_empty);
|
||||
cw1200_queue_post_gc(stats, &gc_list);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats)
|
||||
{
|
||||
kfree(stats->link_map_cache);
|
||||
stats->link_map_cache = NULL;
|
||||
}
|
||||
|
||||
void cw1200_queue_deinit(struct cw1200_queue *queue)
|
||||
{
|
||||
cw1200_queue_clear(queue);
|
||||
del_timer_sync(&queue->gc);
|
||||
INIT_LIST_HEAD(&queue->free_pool);
|
||||
kfree(queue->pool);
|
||||
kfree(queue->link_map_cache);
|
||||
queue->pool = NULL;
|
||||
queue->link_map_cache = NULL;
|
||||
queue->capacity = 0;
|
||||
}
|
||||
|
||||
size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
|
||||
u32 link_id_map)
|
||||
{
|
||||
size_t ret;
|
||||
int i, bit;
|
||||
size_t map_capacity = queue->stats->map_capacity;
|
||||
|
||||
if (!link_id_map)
|
||||
return 0;
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
if (link_id_map == (u32)-1) {
|
||||
ret = queue->num_queued - queue->num_pending;
|
||||
} else {
|
||||
ret = 0;
|
||||
for (i = 0, bit = 1; i < map_capacity; ++i, bit <<= 1) {
|
||||
if (link_id_map & bit)
|
||||
ret += queue->link_map_cache[i];
|
||||
}
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_queue_put(struct cw1200_queue *queue,
|
||||
struct sk_buff *skb,
|
||||
struct cw1200_txpriv *txpriv)
|
||||
{
|
||||
int ret = 0;
|
||||
LIST_HEAD(gc_list);
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
|
||||
if (txpriv->link_id >= queue->stats->map_capacity)
|
||||
return -EINVAL;
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
if (!WARN_ON(list_empty(&queue->free_pool))) {
|
||||
struct cw1200_queue_item *item = list_first_entry(
|
||||
&queue->free_pool, struct cw1200_queue_item, head);
|
||||
BUG_ON(item->skb);
|
||||
|
||||
list_move_tail(&item->head, &queue->queue);
|
||||
item->skb = skb;
|
||||
item->txpriv = *txpriv;
|
||||
item->generation = 0;
|
||||
item->packet_id = cw1200_queue_mk_packet_id(queue->generation,
|
||||
queue->queue_id,
|
||||
item->generation,
|
||||
item - queue->pool);
|
||||
item->queue_timestamp = jiffies;
|
||||
|
||||
++queue->num_queued;
|
||||
++queue->link_map_cache[txpriv->link_id];
|
||||
|
||||
spin_lock_bh(&stats->lock);
|
||||
++stats->num_queued;
|
||||
++stats->link_map_cache[txpriv->link_id];
|
||||
spin_unlock_bh(&stats->lock);
|
||||
|
||||
/* TX may happen in parallel sometimes.
|
||||
* Leave extra queue slots so we don't overflow.
|
||||
*/
|
||||
if (queue->overfull == false &&
|
||||
queue->num_queued >=
|
||||
(queue->capacity - (num_present_cpus() - 1))) {
|
||||
queue->overfull = true;
|
||||
__cw1200_queue_lock(queue);
|
||||
mod_timer(&queue->gc, jiffies);
|
||||
}
|
||||
} else {
|
||||
ret = -ENOENT;
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_queue_get(struct cw1200_queue *queue,
|
||||
u32 link_id_map,
|
||||
struct wsm_tx **tx,
|
||||
struct ieee80211_tx_info **tx_info,
|
||||
const struct cw1200_txpriv **txpriv)
|
||||
{
|
||||
int ret = -ENOENT;
|
||||
struct cw1200_queue_item *item;
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
bool wakeup_stats = false;
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
list_for_each_entry(item, &queue->queue, head) {
|
||||
if (link_id_map & BIT(item->txpriv.link_id)) {
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (!WARN_ON(ret)) {
|
||||
*tx = (struct wsm_tx *)item->skb->data;
|
||||
*tx_info = IEEE80211_SKB_CB(item->skb);
|
||||
*txpriv = &item->txpriv;
|
||||
(*tx)->packet_id = __cpu_to_le32(item->packet_id);
|
||||
list_move_tail(&item->head, &queue->pending);
|
||||
++queue->num_pending;
|
||||
--queue->link_map_cache[item->txpriv.link_id];
|
||||
item->xmit_timestamp = jiffies;
|
||||
|
||||
spin_lock_bh(&stats->lock);
|
||||
--stats->num_queued;
|
||||
if (!--stats->link_map_cache[item->txpriv.link_id])
|
||||
wakeup_stats = true;
|
||||
spin_unlock_bh(&stats->lock);
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
if (wakeup_stats)
|
||||
wake_up(&stats->wait_link_id_empty);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id)
|
||||
{
|
||||
int ret = 0;
|
||||
u8 queue_generation, queue_id, item_generation, item_id;
|
||||
struct cw1200_queue_item *item;
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
|
||||
cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
|
||||
&item_generation, &item_id);
|
||||
|
||||
item = &queue->pool[item_id];
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
BUG_ON(queue_id != queue->queue_id);
|
||||
if (queue_generation != queue->generation) {
|
||||
ret = -ENOENT;
|
||||
} else if (item_id >= (unsigned) queue->capacity) {
|
||||
WARN_ON(1);
|
||||
ret = -EINVAL;
|
||||
} else if (item->generation != item_generation) {
|
||||
WARN_ON(1);
|
||||
ret = -ENOENT;
|
||||
} else {
|
||||
--queue->num_pending;
|
||||
++queue->link_map_cache[item->txpriv.link_id];
|
||||
|
||||
spin_lock_bh(&stats->lock);
|
||||
++stats->num_queued;
|
||||
++stats->link_map_cache[item->txpriv.link_id];
|
||||
spin_unlock_bh(&stats->lock);
|
||||
|
||||
item->generation = ++item_generation;
|
||||
item->packet_id = cw1200_queue_mk_packet_id(queue_generation,
|
||||
queue_id,
|
||||
item_generation,
|
||||
item_id);
|
||||
list_move(&item->head, &queue->queue);
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_queue_requeue_all(struct cw1200_queue *queue)
|
||||
{
|
||||
struct cw1200_queue_item *item, *tmp;
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
spin_lock_bh(&queue->lock);
|
||||
|
||||
list_for_each_entry_safe_reverse(item, tmp, &queue->pending, head) {
|
||||
--queue->num_pending;
|
||||
++queue->link_map_cache[item->txpriv.link_id];
|
||||
|
||||
spin_lock_bh(&stats->lock);
|
||||
++stats->num_queued;
|
||||
++stats->link_map_cache[item->txpriv.link_id];
|
||||
spin_unlock_bh(&stats->lock);
|
||||
|
||||
++item->generation;
|
||||
item->packet_id = cw1200_queue_mk_packet_id(queue->generation,
|
||||
queue->queue_id,
|
||||
item->generation,
|
||||
item - queue->pool);
|
||||
list_move(&item->head, &queue->queue);
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cw1200_queue_remove(struct cw1200_queue *queue, u32 packet_id)
|
||||
{
|
||||
int ret = 0;
|
||||
u8 queue_generation, queue_id, item_generation, item_id;
|
||||
struct cw1200_queue_item *item;
|
||||
struct cw1200_queue_stats *stats = queue->stats;
|
||||
struct sk_buff *gc_skb = NULL;
|
||||
struct cw1200_txpriv gc_txpriv;
|
||||
|
||||
cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
|
||||
&item_generation, &item_id);
|
||||
|
||||
item = &queue->pool[item_id];
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
BUG_ON(queue_id != queue->queue_id);
|
||||
if (queue_generation != queue->generation) {
|
||||
ret = -ENOENT;
|
||||
} else if (item_id >= (unsigned) queue->capacity) {
|
||||
WARN_ON(1);
|
||||
ret = -EINVAL;
|
||||
} else if (item->generation != item_generation) {
|
||||
WARN_ON(1);
|
||||
ret = -ENOENT;
|
||||
} else {
|
||||
gc_txpriv = item->txpriv;
|
||||
gc_skb = item->skb;
|
||||
item->skb = NULL;
|
||||
--queue->num_pending;
|
||||
--queue->num_queued;
|
||||
++queue->num_sent;
|
||||
++item->generation;
|
||||
/* Do not use list_move_tail here, but list_move:
|
||||
* try to utilize cache row.
|
||||
*/
|
||||
list_move(&item->head, &queue->free_pool);
|
||||
|
||||
if (queue->overfull &&
|
||||
(queue->num_queued <= (queue->capacity >> 1))) {
|
||||
queue->overfull = false;
|
||||
__cw1200_queue_unlock(queue);
|
||||
}
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
|
||||
if (gc_skb)
|
||||
stats->skb_dtor(stats->priv, gc_skb, &gc_txpriv);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
|
||||
struct sk_buff **skb,
|
||||
const struct cw1200_txpriv **txpriv)
|
||||
{
|
||||
int ret = 0;
|
||||
u8 queue_generation, queue_id, item_generation, item_id;
|
||||
struct cw1200_queue_item *item;
|
||||
cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
|
||||
&item_generation, &item_id);
|
||||
|
||||
item = &queue->pool[item_id];
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
BUG_ON(queue_id != queue->queue_id);
|
||||
if (queue_generation != queue->generation) {
|
||||
ret = -ENOENT;
|
||||
} else if (item_id >= (unsigned) queue->capacity) {
|
||||
WARN_ON(1);
|
||||
ret = -EINVAL;
|
||||
} else if (item->generation != item_generation) {
|
||||
WARN_ON(1);
|
||||
ret = -ENOENT;
|
||||
} else {
|
||||
*skb = item->skb;
|
||||
*txpriv = &item->txpriv;
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
void cw1200_queue_lock(struct cw1200_queue *queue)
|
||||
{
|
||||
spin_lock_bh(&queue->lock);
|
||||
__cw1200_queue_lock(queue);
|
||||
spin_unlock_bh(&queue->lock);
|
||||
}
|
||||
|
||||
void cw1200_queue_unlock(struct cw1200_queue *queue)
|
||||
{
|
||||
spin_lock_bh(&queue->lock);
|
||||
__cw1200_queue_unlock(queue);
|
||||
spin_unlock_bh(&queue->lock);
|
||||
}
|
||||
|
||||
bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
|
||||
unsigned long *timestamp,
|
||||
u32 pending_frame_id)
|
||||
{
|
||||
struct cw1200_queue_item *item;
|
||||
bool ret;
|
||||
|
||||
spin_lock_bh(&queue->lock);
|
||||
ret = !list_empty(&queue->pending);
|
||||
if (ret) {
|
||||
list_for_each_entry(item, &queue->pending, head) {
|
||||
if (item->packet_id != pending_frame_id)
|
||||
if (time_before(item->xmit_timestamp,
|
||||
*timestamp))
|
||||
*timestamp = item->xmit_timestamp;
|
||||
}
|
||||
}
|
||||
spin_unlock_bh(&queue->lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
|
||||
u32 link_id_map)
|
||||
{
|
||||
bool empty = true;
|
||||
|
||||
spin_lock_bh(&stats->lock);
|
||||
if (link_id_map == (u32)-1) {
|
||||
empty = stats->num_queued == 0;
|
||||
} else {
|
||||
int i;
|
||||
for (i = 0; i < stats->map_capacity; ++i) {
|
||||
if (link_id_map & BIT(i)) {
|
||||
if (stats->link_map_cache[i]) {
|
||||
empty = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
spin_unlock_bh(&stats->lock);
|
||||
|
||||
return empty;
|
||||
}
|
116
drivers/net/wireless/cw1200/queue.h
Normal file
116
drivers/net/wireless/cw1200/queue.h
Normal file
|
@ -0,0 +1,116 @@
|
|||
/*
|
||||
* O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef CW1200_QUEUE_H_INCLUDED
|
||||
#define CW1200_QUEUE_H_INCLUDED
|
||||
|
||||
/* private */ struct cw1200_queue_item;
|
||||
|
||||
/* extern */ struct sk_buff;
|
||||
/* extern */ struct wsm_tx;
|
||||
/* extern */ struct cw1200_common;
|
||||
/* extern */ struct ieee80211_tx_queue_stats;
|
||||
/* extern */ struct cw1200_txpriv;
|
||||
|
||||
/* forward */ struct cw1200_queue_stats;
|
||||
|
||||
typedef void (*cw1200_queue_skb_dtor_t)(struct cw1200_common *priv,
|
||||
struct sk_buff *skb,
|
||||
const struct cw1200_txpriv *txpriv);
|
||||
|
||||
struct cw1200_queue {
|
||||
struct cw1200_queue_stats *stats;
|
||||
size_t capacity;
|
||||
size_t num_queued;
|
||||
size_t num_pending;
|
||||
size_t num_sent;
|
||||
struct cw1200_queue_item *pool;
|
||||
struct list_head queue;
|
||||
struct list_head free_pool;
|
||||
struct list_head pending;
|
||||
int tx_locked_cnt;
|
||||
int *link_map_cache;
|
||||
bool overfull;
|
||||
spinlock_t lock; /* Protect queue entry */
|
||||
u8 queue_id;
|
||||
u8 generation;
|
||||
struct timer_list gc;
|
||||
unsigned long ttl;
|
||||
};
|
||||
|
||||
struct cw1200_queue_stats {
|
||||
spinlock_t lock; /* Protect stats entry */
|
||||
int *link_map_cache;
|
||||
int num_queued;
|
||||
size_t map_capacity;
|
||||
wait_queue_head_t wait_link_id_empty;
|
||||
cw1200_queue_skb_dtor_t skb_dtor;
|
||||
struct cw1200_common *priv;
|
||||
};
|
||||
|
||||
struct cw1200_txpriv {
|
||||
u8 link_id;
|
||||
u8 raw_link_id;
|
||||
u8 tid;
|
||||
u8 rate_id;
|
||||
u8 offset;
|
||||
};
|
||||
|
||||
int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
|
||||
size_t map_capacity,
|
||||
cw1200_queue_skb_dtor_t skb_dtor,
|
||||
struct cw1200_common *priv);
|
||||
int cw1200_queue_init(struct cw1200_queue *queue,
|
||||
struct cw1200_queue_stats *stats,
|
||||
u8 queue_id,
|
||||
size_t capacity,
|
||||
unsigned long ttl);
|
||||
int cw1200_queue_clear(struct cw1200_queue *queue);
|
||||
void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats);
|
||||
void cw1200_queue_deinit(struct cw1200_queue *queue);
|
||||
|
||||
size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
|
||||
u32 link_id_map);
|
||||
int cw1200_queue_put(struct cw1200_queue *queue,
|
||||
struct sk_buff *skb,
|
||||
struct cw1200_txpriv *txpriv);
|
||||
int cw1200_queue_get(struct cw1200_queue *queue,
|
||||
u32 link_id_map,
|
||||
struct wsm_tx **tx,
|
||||
struct ieee80211_tx_info **tx_info,
|
||||
const struct cw1200_txpriv **txpriv);
|
||||
int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id);
|
||||
int cw1200_queue_requeue_all(struct cw1200_queue *queue);
|
||||
int cw1200_queue_remove(struct cw1200_queue *queue,
|
||||
u32 packet_id);
|
||||
int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
|
||||
struct sk_buff **skb,
|
||||
const struct cw1200_txpriv **txpriv);
|
||||
void cw1200_queue_lock(struct cw1200_queue *queue);
|
||||
void cw1200_queue_unlock(struct cw1200_queue *queue);
|
||||
bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
|
||||
unsigned long *timestamp,
|
||||
u32 pending_frame_id);
|
||||
|
||||
bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
|
||||
u32 link_id_map);
|
||||
|
||||
static inline u8 cw1200_queue_get_queue_id(u32 packet_id)
|
||||
{
|
||||
return (packet_id >> 16) & 0xFF;
|
||||
}
|
||||
|
||||
static inline u8 cw1200_queue_get_generation(u32 packet_id)
|
||||
{
|
||||
return (packet_id >> 8) & 0xFF;
|
||||
}
|
||||
|
||||
#endif /* CW1200_QUEUE_H_INCLUDED */
|
37
drivers/net/wireless/cw1200/sbus.h
Normal file
37
drivers/net/wireless/cw1200/sbus.h
Normal file
|
@ -0,0 +1,37 @@
|
|||
/*
|
||||
* Common sbus abstraction layer interface for cw1200 wireless driver
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef CW1200_SBUS_H
|
||||
#define CW1200_SBUS_H
|
||||
|
||||
/*
|
||||
* sbus priv forward definition.
|
||||
* Implemented and instantiated in particular modules.
|
||||
*/
|
||||
struct sbus_priv;
|
||||
|
||||
void cw1200_irq_handler(struct cw1200_common *priv);
|
||||
|
||||
/* This MUST be wrapped with sbus_ops->lock/unlock! */
|
||||
int __cw1200_irq_enable(struct cw1200_common *priv, int enable);
|
||||
|
||||
struct sbus_ops {
|
||||
int (*sbus_memcpy_fromio)(struct sbus_priv *self, unsigned int addr,
|
||||
void *dst, int count);
|
||||
int (*sbus_memcpy_toio)(struct sbus_priv *self, unsigned int addr,
|
||||
const void *src, int count);
|
||||
void (*lock)(struct sbus_priv *self);
|
||||
void (*unlock)(struct sbus_priv *self);
|
||||
size_t (*align_size)(struct sbus_priv *self, size_t size);
|
||||
int (*power_mgmt)(struct sbus_priv *self, bool suspend);
|
||||
};
|
||||
|
||||
#endif /* CW1200_SBUS_H */
|
461
drivers/net/wireless/cw1200/scan.c
Normal file
461
drivers/net/wireless/cw1200/scan.c
Normal file
|
@ -0,0 +1,461 @@
|
|||
/*
|
||||
* Scan implementation for ST-Ericsson CW1200 mac80211 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/sched.h>
|
||||
#include "cw1200.h"
|
||||
#include "scan.h"
|
||||
#include "sta.h"
|
||||
#include "pm.h"
|
||||
|
||||
static void cw1200_scan_restart_delayed(struct cw1200_common *priv);
|
||||
|
||||
static int cw1200_scan_start(struct cw1200_common *priv, struct wsm_scan *scan)
|
||||
{
|
||||
int ret, i;
|
||||
int tmo = 2000;
|
||||
|
||||
switch (priv->join_status) {
|
||||
case CW1200_JOIN_STATUS_PRE_STA:
|
||||
case CW1200_JOIN_STATUS_JOINING:
|
||||
return -EBUSY;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
wiphy_dbg(priv->hw->wiphy, "[SCAN] hw req, type %d, %d channels, flags: 0x%x.\n",
|
||||
scan->type, scan->num_channels, scan->flags);
|
||||
|
||||
for (i = 0; i < scan->num_channels; ++i)
|
||||
tmo += scan->ch[i].max_chan_time + 10;
|
||||
|
||||
cancel_delayed_work_sync(&priv->clear_recent_scan_work);
|
||||
atomic_set(&priv->scan.in_progress, 1);
|
||||
atomic_set(&priv->recent_scan, 1);
|
||||
cw1200_pm_stay_awake(&priv->pm_state, tmo * HZ / 1000);
|
||||
queue_delayed_work(priv->workqueue, &priv->scan.timeout,
|
||||
tmo * HZ / 1000);
|
||||
ret = wsm_scan(priv, scan);
|
||||
if (ret) {
|
||||
atomic_set(&priv->scan.in_progress, 0);
|
||||
cancel_delayed_work_sync(&priv->scan.timeout);
|
||||
cw1200_scan_restart_delayed(priv);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cw1200_hw_scan(struct ieee80211_hw *hw,
|
||||
struct ieee80211_vif *vif,
|
||||
struct cfg80211_scan_request *req)
|
||||
{
|
||||
struct cw1200_common *priv = hw->priv;
|
||||
struct wsm_template_frame frame = {
|
||||
.frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
|
||||
};
|
||||
int i, ret;
|
||||
|
||||
if (!priv->vif)
|
||||
return -EINVAL;
|
||||
|
||||
/* Scan when P2P_GO corrupt firmware MiniAP mode */
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_AP)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
if (req->n_ssids == 1 && !req->ssids[0].ssid_len)
|
||||
req->n_ssids = 0;
|
||||
|
||||
wiphy_dbg(hw->wiphy, "[SCAN] Scan request for %d SSIDs.\n",
|
||||
req->n_ssids);
|
||||
|
||||
if (req->n_ssids > WSM_SCAN_MAX_NUM_OF_SSIDS)
|
||||
return -EINVAL;
|
||||
|
||||
frame.skb = ieee80211_probereq_get(hw, priv->vif, NULL, 0,
|
||||
req->ie_len);
|
||||
if (!frame.skb)
|
||||
return -ENOMEM;
|
||||
|
||||
if (req->ie_len)
|
||||
memcpy(skb_put(frame.skb, req->ie_len), req->ie, req->ie_len);
|
||||
|
||||
/* will be unlocked in cw1200_scan_work() */
|
||||
down(&priv->scan.lock);
|
||||
mutex_lock(&priv->conf_mutex);
|
||||
|
||||
ret = wsm_set_template_frame(priv, &frame);
|
||||
if (!ret) {
|
||||
/* Host want to be the probe responder. */
|
||||
ret = wsm_set_probe_responder(priv, true);
|
||||
}
|
||||
if (ret) {
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
up(&priv->scan.lock);
|
||||
dev_kfree_skb(frame.skb);
|
||||
return ret;
|
||||
}
|
||||
|
||||
wsm_lock_tx(priv);
|
||||
|
||||
BUG_ON(priv->scan.req);
|
||||
priv->scan.req = req;
|
||||
priv->scan.n_ssids = 0;
|
||||
priv->scan.status = 0;
|
||||
priv->scan.begin = &req->channels[0];
|
||||
priv->scan.curr = priv->scan.begin;
|
||||
priv->scan.end = &req->channels[req->n_channels];
|
||||
priv->scan.output_power = priv->output_power;
|
||||
|
||||
for (i = 0; i < req->n_ssids; ++i) {
|
||||
struct wsm_ssid *dst = &priv->scan.ssids[priv->scan.n_ssids];
|
||||
memcpy(&dst->ssid[0], req->ssids[i].ssid, sizeof(dst->ssid));
|
||||
dst->length = req->ssids[i].ssid_len;
|
||||
++priv->scan.n_ssids;
|
||||
}
|
||||
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
|
||||
if (frame.skb)
|
||||
dev_kfree_skb(frame.skb);
|
||||
queue_work(priv->workqueue, &priv->scan.work);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void cw1200_scan_work(struct work_struct *work)
|
||||
{
|
||||
struct cw1200_common *priv = container_of(work, struct cw1200_common,
|
||||
scan.work);
|
||||
struct ieee80211_channel **it;
|
||||
struct wsm_scan scan = {
|
||||
.type = WSM_SCAN_TYPE_FOREGROUND,
|
||||
.flags = WSM_SCAN_FLAG_SPLIT_METHOD,
|
||||
};
|
||||
bool first_run = (priv->scan.begin == priv->scan.curr &&
|
||||
priv->scan.begin != priv->scan.end);
|
||||
int i;
|
||||
|
||||
if (first_run) {
|
||||
/* Firmware gets crazy if scan request is sent
|
||||
* when STA is joined but not yet associated.
|
||||
* Force unjoin in this case.
|
||||
*/
|
||||
if (cancel_delayed_work_sync(&priv->join_timeout) > 0)
|
||||
cw1200_join_timeout(&priv->join_timeout.work);
|
||||
}
|
||||
|
||||
mutex_lock(&priv->conf_mutex);
|
||||
|
||||
if (first_run) {
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_STA &&
|
||||
!(priv->powersave_mode.mode & WSM_PSM_PS)) {
|
||||
struct wsm_set_pm pm = priv->powersave_mode;
|
||||
pm.mode = WSM_PSM_PS;
|
||||
cw1200_set_pm(priv, &pm);
|
||||
} else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
|
||||
/* FW bug: driver has to restart p2p-dev mode
|
||||
* after scan
|
||||
*/
|
||||
cw1200_disable_listening(priv);
|
||||
}
|
||||
}
|
||||
|
||||
if (!priv->scan.req || (priv->scan.curr == priv->scan.end)) {
|
||||
if (priv->scan.output_power != priv->output_power)
|
||||
wsm_set_output_power(priv, priv->output_power * 10);
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_STA &&
|
||||
!(priv->powersave_mode.mode & WSM_PSM_PS))
|
||||
cw1200_set_pm(priv, &priv->powersave_mode);
|
||||
|
||||
if (priv->scan.status < 0)
|
||||
wiphy_dbg(priv->hw->wiphy, "[SCAN] Scan failed (%d).\n",
|
||||
priv->scan.status);
|
||||
else if (priv->scan.req)
|
||||
wiphy_dbg(priv->hw->wiphy,
|
||||
"[SCAN] Scan completed.\n");
|
||||
else
|
||||
wiphy_dbg(priv->hw->wiphy,
|
||||
"[SCAN] Scan canceled.\n");
|
||||
|
||||
priv->scan.req = NULL;
|
||||
cw1200_scan_restart_delayed(priv);
|
||||
wsm_unlock_tx(priv);
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
ieee80211_scan_completed(priv->hw, priv->scan.status ? 1 : 0);
|
||||
up(&priv->scan.lock);
|
||||
return;
|
||||
} else {
|
||||
struct ieee80211_channel *first = *priv->scan.curr;
|
||||
for (it = priv->scan.curr + 1, i = 1;
|
||||
it != priv->scan.end && i < WSM_SCAN_MAX_NUM_OF_CHANNELS;
|
||||
++it, ++i) {
|
||||
if ((*it)->band != first->band)
|
||||
break;
|
||||
if (((*it)->flags ^ first->flags) &
|
||||
IEEE80211_CHAN_PASSIVE_SCAN)
|
||||
break;
|
||||
if (!(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
|
||||
(*it)->max_power != first->max_power)
|
||||
break;
|
||||
}
|
||||
scan.band = first->band;
|
||||
|
||||
if (priv->scan.req->no_cck)
|
||||
scan.max_tx_rate = WSM_TRANSMIT_RATE_6;
|
||||
else
|
||||
scan.max_tx_rate = WSM_TRANSMIT_RATE_1;
|
||||
scan.num_probes =
|
||||
(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) ? 0 : 2;
|
||||
scan.num_ssids = priv->scan.n_ssids;
|
||||
scan.ssids = &priv->scan.ssids[0];
|
||||
scan.num_channels = it - priv->scan.curr;
|
||||
/* TODO: Is it optimal? */
|
||||
scan.probe_delay = 100;
|
||||
/* It is not stated in WSM specification, however
|
||||
* FW team says that driver may not use FG scan
|
||||
* when joined.
|
||||
*/
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_STA) {
|
||||
scan.type = WSM_SCAN_TYPE_BACKGROUND;
|
||||
scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
|
||||
}
|
||||
scan.ch = kzalloc(
|
||||
sizeof(struct wsm_scan_ch) * (it - priv->scan.curr),
|
||||
GFP_KERNEL);
|
||||
if (!scan.ch) {
|
||||
priv->scan.status = -ENOMEM;
|
||||
goto fail;
|
||||
}
|
||||
for (i = 0; i < scan.num_channels; ++i) {
|
||||
scan.ch[i].number = priv->scan.curr[i]->hw_value;
|
||||
if (priv->scan.curr[i]->flags & IEEE80211_CHAN_PASSIVE_SCAN) {
|
||||
scan.ch[i].min_chan_time = 50;
|
||||
scan.ch[i].max_chan_time = 100;
|
||||
} else {
|
||||
scan.ch[i].min_chan_time = 10;
|
||||
scan.ch[i].max_chan_time = 25;
|
||||
}
|
||||
}
|
||||
if (!(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
|
||||
priv->scan.output_power != first->max_power) {
|
||||
priv->scan.output_power = first->max_power;
|
||||
wsm_set_output_power(priv,
|
||||
priv->scan.output_power * 10);
|
||||
}
|
||||
priv->scan.status = cw1200_scan_start(priv, &scan);
|
||||
kfree(scan.ch);
|
||||
if (priv->scan.status)
|
||||
goto fail;
|
||||
priv->scan.curr = it;
|
||||
}
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
return;
|
||||
|
||||
fail:
|
||||
priv->scan.curr = priv->scan.end;
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
queue_work(priv->workqueue, &priv->scan.work);
|
||||
return;
|
||||
}
|
||||
|
||||
static void cw1200_scan_restart_delayed(struct cw1200_common *priv)
|
||||
{
|
||||
/* FW bug: driver has to restart p2p-dev mode after scan. */
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
|
||||
cw1200_enable_listening(priv);
|
||||
cw1200_update_filtering(priv);
|
||||
}
|
||||
|
||||
if (priv->delayed_unjoin) {
|
||||
priv->delayed_unjoin = false;
|
||||
if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
|
||||
wsm_unlock_tx(priv);
|
||||
} else if (priv->delayed_link_loss) {
|
||||
wiphy_dbg(priv->hw->wiphy, "[CQM] Requeue BSS loss.\n");
|
||||
priv->delayed_link_loss = 0;
|
||||
cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
|
||||
}
|
||||
}
|
||||
|
||||
static void cw1200_scan_complete(struct cw1200_common *priv)
|
||||
{
|
||||
queue_delayed_work(priv->workqueue, &priv->clear_recent_scan_work, HZ);
|
||||
if (priv->scan.direct_probe) {
|
||||
wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe complete.\n");
|
||||
cw1200_scan_restart_delayed(priv);
|
||||
priv->scan.direct_probe = 0;
|
||||
up(&priv->scan.lock);
|
||||
wsm_unlock_tx(priv);
|
||||
} else {
|
||||
cw1200_scan_work(&priv->scan.work);
|
||||
}
|
||||
}
|
||||
|
||||
void cw1200_scan_failed_cb(struct cw1200_common *priv)
|
||||
{
|
||||
if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
|
||||
/* STA is stopped. */
|
||||
return;
|
||||
|
||||
if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {
|
||||
priv->scan.status = -EIO;
|
||||
queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void cw1200_scan_complete_cb(struct cw1200_common *priv,
|
||||
struct wsm_scan_complete *arg)
|
||||
{
|
||||
if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
|
||||
/* STA is stopped. */
|
||||
return;
|
||||
|
||||
if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {
|
||||
priv->scan.status = 1;
|
||||
queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);
|
||||
}
|
||||
}
|
||||
|
||||
void cw1200_clear_recent_scan_work(struct work_struct *work)
|
||||
{
|
||||
struct cw1200_common *priv =
|
||||
container_of(work, struct cw1200_common,
|
||||
clear_recent_scan_work.work);
|
||||
atomic_xchg(&priv->recent_scan, 0);
|
||||
}
|
||||
|
||||
void cw1200_scan_timeout(struct work_struct *work)
|
||||
{
|
||||
struct cw1200_common *priv =
|
||||
container_of(work, struct cw1200_common, scan.timeout.work);
|
||||
if (atomic_xchg(&priv->scan.in_progress, 0)) {
|
||||
if (priv->scan.status > 0) {
|
||||
priv->scan.status = 0;
|
||||
} else if (!priv->scan.status) {
|
||||
wiphy_warn(priv->hw->wiphy,
|
||||
"Timeout waiting for scan complete notification.\n");
|
||||
priv->scan.status = -ETIMEDOUT;
|
||||
priv->scan.curr = priv->scan.end;
|
||||
wsm_stop_scan(priv);
|
||||
}
|
||||
cw1200_scan_complete(priv);
|
||||
}
|
||||
}
|
||||
|
||||
void cw1200_probe_work(struct work_struct *work)
|
||||
{
|
||||
struct cw1200_common *priv =
|
||||
container_of(work, struct cw1200_common, scan.probe_work.work);
|
||||
u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id);
|
||||
struct cw1200_queue *queue = &priv->tx_queue[queue_id];
|
||||
const struct cw1200_txpriv *txpriv;
|
||||
struct wsm_tx *wsm;
|
||||
struct wsm_template_frame frame = {
|
||||
.frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
|
||||
};
|
||||
struct wsm_ssid ssids[1] = {{
|
||||
.length = 0,
|
||||
} };
|
||||
struct wsm_scan_ch ch[1] = {{
|
||||
.min_chan_time = 0,
|
||||
.max_chan_time = 10,
|
||||
} };
|
||||
struct wsm_scan scan = {
|
||||
.type = WSM_SCAN_TYPE_FOREGROUND,
|
||||
.num_probes = 1,
|
||||
.probe_delay = 0,
|
||||
.num_channels = 1,
|
||||
.ssids = ssids,
|
||||
.ch = ch,
|
||||
};
|
||||
u8 *ies;
|
||||
size_t ies_len;
|
||||
int ret;
|
||||
|
||||
wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe work.\n");
|
||||
|
||||
mutex_lock(&priv->conf_mutex);
|
||||
if (down_trylock(&priv->scan.lock)) {
|
||||
/* Scan is already in progress. Requeue self. */
|
||||
schedule();
|
||||
queue_delayed_work(priv->workqueue,
|
||||
&priv->scan.probe_work, HZ / 10);
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
return;
|
||||
}
|
||||
|
||||
/* Make sure we still have a pending probe req */
|
||||
if (cw1200_queue_get_skb(queue, priv->pending_frame_id,
|
||||
&frame.skb, &txpriv)) {
|
||||
up(&priv->scan.lock);
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
wsm_unlock_tx(priv);
|
||||
return;
|
||||
}
|
||||
wsm = (struct wsm_tx *)frame.skb->data;
|
||||
scan.max_tx_rate = wsm->max_tx_rate;
|
||||
scan.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
|
||||
WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_STA ||
|
||||
priv->join_status == CW1200_JOIN_STATUS_IBSS) {
|
||||
scan.type = WSM_SCAN_TYPE_BACKGROUND;
|
||||
scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
|
||||
}
|
||||
ch[0].number = priv->channel->hw_value;
|
||||
|
||||
skb_pull(frame.skb, txpriv->offset);
|
||||
|
||||
ies = &frame.skb->data[sizeof(struct ieee80211_hdr_3addr)];
|
||||
ies_len = frame.skb->len - sizeof(struct ieee80211_hdr_3addr);
|
||||
|
||||
if (ies_len) {
|
||||
u8 *ssidie =
|
||||
(u8 *)cfg80211_find_ie(WLAN_EID_SSID, ies, ies_len);
|
||||
if (ssidie && ssidie[1] && ssidie[1] <= sizeof(ssids[0].ssid)) {
|
||||
u8 *nextie = &ssidie[2 + ssidie[1]];
|
||||
/* Remove SSID from the IE list. It has to be provided
|
||||
* as a separate argument in cw1200_scan_start call
|
||||
*/
|
||||
|
||||
/* Store SSID localy */
|
||||
ssids[0].length = ssidie[1];
|
||||
memcpy(ssids[0].ssid, &ssidie[2], ssids[0].length);
|
||||
scan.num_ssids = 1;
|
||||
|
||||
/* Remove SSID from IE list */
|
||||
ssidie[1] = 0;
|
||||
memmove(&ssidie[2], nextie, &ies[ies_len] - nextie);
|
||||
skb_trim(frame.skb, frame.skb->len - ssids[0].length);
|
||||
}
|
||||
}
|
||||
|
||||
/* FW bug: driver has to restart p2p-dev mode after scan */
|
||||
if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
|
||||
cw1200_disable_listening(priv);
|
||||
ret = wsm_set_template_frame(priv, &frame);
|
||||
priv->scan.direct_probe = 1;
|
||||
if (!ret) {
|
||||
wsm_flush_tx(priv);
|
||||
ret = cw1200_scan_start(priv, &scan);
|
||||
}
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
|
||||
skb_push(frame.skb, txpriv->offset);
|
||||
if (!ret)
|
||||
IEEE80211_SKB_CB(frame.skb)->flags |= IEEE80211_TX_STAT_ACK;
|
||||
BUG_ON(cw1200_queue_remove(queue, priv->pending_frame_id));
|
||||
|
||||
if (ret) {
|
||||
priv->scan.direct_probe = 0;
|
||||
up(&priv->scan.lock);
|
||||
wsm_unlock_tx(priv);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
56
drivers/net/wireless/cw1200/scan.h
Normal file
56
drivers/net/wireless/cw1200/scan.h
Normal file
|
@ -0,0 +1,56 @@
|
|||
/*
|
||||
* Scan interface for ST-Ericsson CW1200 mac80211 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef SCAN_H_INCLUDED
|
||||
#define SCAN_H_INCLUDED
|
||||
|
||||
#include <linux/semaphore.h>
|
||||
#include "wsm.h"
|
||||
|
||||
/* external */ struct sk_buff;
|
||||
/* external */ struct cfg80211_scan_request;
|
||||
/* external */ struct ieee80211_channel;
|
||||
/* external */ struct ieee80211_hw;
|
||||
/* external */ struct work_struct;
|
||||
|
||||
struct cw1200_scan {
|
||||
struct semaphore lock;
|
||||
struct work_struct work;
|
||||
struct delayed_work timeout;
|
||||
struct cfg80211_scan_request *req;
|
||||
struct ieee80211_channel **begin;
|
||||
struct ieee80211_channel **curr;
|
||||
struct ieee80211_channel **end;
|
||||
struct wsm_ssid ssids[WSM_SCAN_MAX_NUM_OF_SSIDS];
|
||||
int output_power;
|
||||
int n_ssids;
|
||||
int status;
|
||||
atomic_t in_progress;
|
||||
/* Direct probe requests workaround */
|
||||
struct delayed_work probe_work;
|
||||
int direct_probe;
|
||||
};
|
||||
|
||||
int cw1200_hw_scan(struct ieee80211_hw *hw,
|
||||
struct ieee80211_vif *vif,
|
||||
struct cfg80211_scan_request *req);
|
||||
void cw1200_scan_work(struct work_struct *work);
|
||||
void cw1200_scan_timeout(struct work_struct *work);
|
||||
void cw1200_clear_recent_scan_work(struct work_struct *work);
|
||||
void cw1200_scan_complete_cb(struct cw1200_common *priv,
|
||||
struct wsm_scan_complete *arg);
|
||||
void cw1200_scan_failed_cb(struct cw1200_common *priv);
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* Raw probe requests TX workaround */
|
||||
void cw1200_probe_work(struct work_struct *work);
|
||||
|
||||
#endif
|
2406
drivers/net/wireless/cw1200/sta.c
Normal file
2406
drivers/net/wireless/cw1200/sta.c
Normal file
File diff suppressed because it is too large
Load diff
123
drivers/net/wireless/cw1200/sta.h
Normal file
123
drivers/net/wireless/cw1200/sta.h
Normal file
|
@ -0,0 +1,123 @@
|
|||
/*
|
||||
* Mac80211 STA interface for ST-Ericsson CW1200 mac80211 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef STA_H_INCLUDED
|
||||
#define STA_H_INCLUDED
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* mac80211 API */
|
||||
|
||||
int cw1200_start(struct ieee80211_hw *dev);
|
||||
void cw1200_stop(struct ieee80211_hw *dev);
|
||||
int cw1200_add_interface(struct ieee80211_hw *dev,
|
||||
struct ieee80211_vif *vif);
|
||||
void cw1200_remove_interface(struct ieee80211_hw *dev,
|
||||
struct ieee80211_vif *vif);
|
||||
int cw1200_change_interface(struct ieee80211_hw *dev,
|
||||
struct ieee80211_vif *vif,
|
||||
enum nl80211_iftype new_type,
|
||||
bool p2p);
|
||||
int cw1200_config(struct ieee80211_hw *dev, u32 changed);
|
||||
void cw1200_configure_filter(struct ieee80211_hw *dev,
|
||||
unsigned int changed_flags,
|
||||
unsigned int *total_flags,
|
||||
u64 multicast);
|
||||
int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
|
||||
u16 queue, const struct ieee80211_tx_queue_params *params);
|
||||
int cw1200_get_stats(struct ieee80211_hw *dev,
|
||||
struct ieee80211_low_level_stats *stats);
|
||||
int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
|
||||
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
|
||||
struct ieee80211_key_conf *key);
|
||||
|
||||
int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
|
||||
|
||||
void cw1200_flush(struct ieee80211_hw *hw, u32 queues, bool drop);
|
||||
|
||||
u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
|
||||
struct netdev_hw_addr_list *mc_list);
|
||||
|
||||
int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg);
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* WSM callbacks */
|
||||
|
||||
void cw1200_join_complete_cb(struct cw1200_common *priv,
|
||||
struct wsm_join_complete *arg);
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* WSM events */
|
||||
|
||||
void cw1200_free_event_queue(struct cw1200_common *priv);
|
||||
void cw1200_event_handler(struct work_struct *work);
|
||||
void cw1200_bss_loss_work(struct work_struct *work);
|
||||
void cw1200_bss_params_work(struct work_struct *work);
|
||||
void cw1200_keep_alive_work(struct work_struct *work);
|
||||
void cw1200_tx_failure_work(struct work_struct *work);
|
||||
|
||||
void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv, int init, int good,
|
||||
int bad);
|
||||
static inline void cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
|
||||
int init, int good, int bad)
|
||||
{
|
||||
spin_lock(&priv->bss_loss_lock);
|
||||
__cw1200_cqm_bssloss_sm(priv, init, good, bad);
|
||||
spin_unlock(&priv->bss_loss_lock);
|
||||
}
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* Internal API */
|
||||
|
||||
int cw1200_setup_mac(struct cw1200_common *priv);
|
||||
void cw1200_join_timeout(struct work_struct *work);
|
||||
void cw1200_unjoin_work(struct work_struct *work);
|
||||
void cw1200_join_complete_work(struct work_struct *work);
|
||||
void cw1200_wep_key_work(struct work_struct *work);
|
||||
void cw1200_update_listening(struct cw1200_common *priv, bool enabled);
|
||||
void cw1200_update_filtering(struct cw1200_common *priv);
|
||||
void cw1200_update_filtering_work(struct work_struct *work);
|
||||
void cw1200_set_beacon_wakeup_period_work(struct work_struct *work);
|
||||
int cw1200_enable_listening(struct cw1200_common *priv);
|
||||
int cw1200_disable_listening(struct cw1200_common *priv);
|
||||
int cw1200_set_uapsd_param(struct cw1200_common *priv,
|
||||
const struct wsm_edca_params *arg);
|
||||
void cw1200_ba_work(struct work_struct *work);
|
||||
void cw1200_ba_timer(unsigned long arg);
|
||||
|
||||
/* AP stuffs */
|
||||
int cw1200_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
|
||||
bool set);
|
||||
int cw1200_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
|
||||
struct ieee80211_sta *sta);
|
||||
int cw1200_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
|
||||
struct ieee80211_sta *sta);
|
||||
void cw1200_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
|
||||
enum sta_notify_cmd notify_cmd,
|
||||
struct ieee80211_sta *sta);
|
||||
void cw1200_bss_info_changed(struct ieee80211_hw *dev,
|
||||
struct ieee80211_vif *vif,
|
||||
struct ieee80211_bss_conf *info,
|
||||
u32 changed);
|
||||
int cw1200_ampdu_action(struct ieee80211_hw *hw,
|
||||
struct ieee80211_vif *vif,
|
||||
enum ieee80211_ampdu_mlme_action action,
|
||||
struct ieee80211_sta *sta, u16 tid, u16 *ssn,
|
||||
u8 buf_size);
|
||||
|
||||
void cw1200_suspend_resume(struct cw1200_common *priv,
|
||||
struct wsm_suspend_resume *arg);
|
||||
void cw1200_set_tim_work(struct work_struct *work);
|
||||
void cw1200_set_cts_work(struct work_struct *work);
|
||||
void cw1200_multicast_start_work(struct work_struct *work);
|
||||
void cw1200_multicast_stop_work(struct work_struct *work);
|
||||
void cw1200_mcast_timeout(unsigned long arg);
|
||||
|
||||
#endif
|
1474
drivers/net/wireless/cw1200/txrx.c
Normal file
1474
drivers/net/wireless/cw1200/txrx.c
Normal file
File diff suppressed because it is too large
Load diff
106
drivers/net/wireless/cw1200/txrx.h
Normal file
106
drivers/net/wireless/cw1200/txrx.h
Normal file
|
@ -0,0 +1,106 @@
|
|||
/*
|
||||
* Datapath interface for ST-Ericsson CW1200 mac80211 drivers
|
||||
*
|
||||
* Copyright (c) 2010, ST-Ericsson
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef CW1200_TXRX_H
|
||||
#define CW1200_TXRX_H
|
||||
|
||||
#include <linux/list.h>
|
||||
|
||||
/* extern */ struct ieee80211_hw;
|
||||
/* extern */ struct sk_buff;
|
||||
/* extern */ struct wsm_tx;
|
||||
/* extern */ struct wsm_rx;
|
||||
/* extern */ struct wsm_tx_confirm;
|
||||
/* extern */ struct cw1200_txpriv;
|
||||
|
||||
struct tx_policy {
|
||||
union {
|
||||
__le32 tbl[3];
|
||||
u8 raw[12];
|
||||
};
|
||||
u8 defined;
|
||||
u8 usage_count;
|
||||
u8 retry_count;
|
||||
u8 uploaded;
|
||||
};
|
||||
|
||||
struct tx_policy_cache_entry {
|
||||
struct tx_policy policy;
|
||||
struct list_head link;
|
||||
};
|
||||
|
||||
#define TX_POLICY_CACHE_SIZE (8)
|
||||
struct tx_policy_cache {
|
||||
struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
|
||||
struct list_head used;
|
||||
struct list_head free;
|
||||
spinlock_t lock; /* Protect policy cache */
|
||||
};
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* TX policy cache */
|
||||
/* Intention of TX policy cache is an overcomplicated WSM API.
|
||||
* Device does not accept per-PDU tx retry sequence.
|
||||
* It uses "tx retry policy id" instead, so driver code has to sync
|
||||
* linux tx retry sequences with a retry policy table in the device.
|
||||
*/
|
||||
void tx_policy_init(struct cw1200_common *priv);
|
||||
void tx_policy_upload_work(struct work_struct *work);
|
||||
void tx_policy_clean(struct cw1200_common *priv);
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* TX implementation */
|
||||
|
||||
u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
|
||||
u32 rates);
|
||||
void cw1200_tx(struct ieee80211_hw *dev,
|
||||
struct ieee80211_tx_control *control,
|
||||
struct sk_buff *skb);
|
||||
void cw1200_skb_dtor(struct cw1200_common *priv,
|
||||
struct sk_buff *skb,
|
||||
const struct cw1200_txpriv *txpriv);
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* WSM callbacks */
|
||||
|
||||
void cw1200_tx_confirm_cb(struct cw1200_common *priv,
|
||||
int link_id,
|
||||
struct wsm_tx_confirm *arg);
|
||||
void cw1200_rx_cb(struct cw1200_common *priv,
|
||||
struct wsm_rx *arg,
|
||||
int link_id,
|
||||
struct sk_buff **skb_p);
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* Timeout */
|
||||
|
||||
void cw1200_tx_timeout(struct work_struct *work);
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* Security */
|
||||
int cw1200_alloc_key(struct cw1200_common *priv);
|
||||
void cw1200_free_key(struct cw1200_common *priv, int idx);
|
||||
void cw1200_free_keys(struct cw1200_common *priv);
|
||||
int cw1200_upload_keys(struct cw1200_common *priv);
|
||||
|
||||
/* ******************************************************************** */
|
||||
/* Workaround for WFD test case 6.1.10 */
|
||||
void cw1200_link_id_reset(struct work_struct *work);
|
||||
|
||||
#define CW1200_LINK_ID_GC_TIMEOUT ((unsigned long)(10 * HZ))
|
||||
|
||||
int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac);
|
||||
int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac);
|
||||
void cw1200_link_id_work(struct work_struct *work);
|
||||
void cw1200_link_id_gc_work(struct work_struct *work);
|
||||
|
||||
|
||||
#endif /* CW1200_TXRX_H */
|
1884
drivers/net/wireless/cw1200/wsm.c
Normal file
1884
drivers/net/wireless/cw1200/wsm.c
Normal file
File diff suppressed because it is too large
Load diff
1879
drivers/net/wireless/cw1200/wsm.h
Normal file
1879
drivers/net/wireless/cw1200/wsm.h
Normal file
File diff suppressed because it is too large
Load diff
46
include/linux/cw1200_platform.h
Normal file
46
include/linux/cw1200_platform.h
Normal file
|
@ -0,0 +1,46 @@
|
|||
/*
|
||||
* Copyright (C) ST-Ericsson SA 2011
|
||||
*
|
||||
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
|
||||
* License terms: GNU General Public License (GPL) version 2
|
||||
*/
|
||||
|
||||
#ifndef CW1200_PLAT_H_INCLUDED
|
||||
#define CW1200_PLAT_H_INCLUDED
|
||||
|
||||
struct cw1200_platform_data_spi {
|
||||
u8 spi_bits_per_word; /* REQUIRED */
|
||||
u16 ref_clk; /* REQUIRED (in KHz) */
|
||||
|
||||
/* All others are optional */
|
||||
bool have_5ghz;
|
||||
const struct resource *reset; /* GPIO to RSTn signal */
|
||||
const struct resource *powerup; /* GPIO to POWERUP signal */
|
||||
int (*power_ctrl)(const struct cw1200_platform_data_spi *pdata,
|
||||
bool enable); /* Control 3v3 / 1v8 supply */
|
||||
int (*clk_ctrl)(const struct cw1200_platform_data_spi *pdata,
|
||||
bool enable); /* Control CLK32K */
|
||||
const u8 *macaddr; /* if NULL, use cw1200_mac_template module parameter */
|
||||
const char *sdd_file; /* if NULL, will use default for detected hw type */
|
||||
};
|
||||
|
||||
struct cw1200_platform_data_sdio {
|
||||
u16 ref_clk; /* REQUIRED (in KHz) */
|
||||
|
||||
/* All others are optional */
|
||||
const struct resource *irq; /* if using GPIO for IRQ */
|
||||
bool have_5ghz;
|
||||
bool no_nptb; /* SDIO hardware does not support non-power-of-2-blocksizes */
|
||||
const struct resource *reset; /* GPIO to RSTn signal */
|
||||
const struct resource *powerup; /* GPIO to POWERUP signal */
|
||||
int (*power_ctrl)(const struct cw1200_platform_data_sdio *pdata,
|
||||
bool enable); /* Control 3v3 / 1v8 supply */
|
||||
int (*clk_ctrl)(const struct cw1200_platform_data_sdio *pdata,
|
||||
bool enable); /* Control CLK32K */
|
||||
const u8 *macaddr; /* if NULL, use cw1200_mac_template module parameter */
|
||||
const char *sdd_file; /* if NULL, will use default for detected hw type */
|
||||
};
|
||||
|
||||
const void *cw1200_get_platform_data(void);
|
||||
|
||||
#endif /* CW1200_PLAT_H_INCLUDED */
|
Loading…
Reference in a new issue