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![Paul Gortmaker](/assets/img/avatar_default.png)
This driver had headers like big_endian.h, little_endian.h, swab.h and yet we can throw them all in the trash can and the thing still builds on x86-64 and ppc, just by deleting the references to the deleted files. Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
403 lines
13 KiB
C
403 lines
13 KiB
C
/******************************************************************************
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* hal_init.c
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*
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* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
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* Linux device driver for RTL8192SU
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* Modifications for inclusion into the Linux staging tree are
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* Copyright(c) 2010 Larry Finger. All rights reserved.
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*
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* Contact information:
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* WLAN FAE <wlanfae@realtek.com>.
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* Larry Finger <Larry.Finger@lwfinger.net>
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*
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******************************************************************************/
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#define _HAL_INIT_C_
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#include <linux/usb.h>
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#include <linux/device.h>
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#include <linux/usb/ch9.h>
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#include <linux/firmware.h>
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#include <linux/module.h>
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#include "osdep_service.h"
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#include "drv_types.h"
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#include "usb_osintf.h"
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#define FWBUFF_ALIGN_SZ 512
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#define MAX_DUMP_FWSZ 49152 /*default = 49152 (48k)*/
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static void rtl871x_load_fw_cb(const struct firmware *firmware, void *context)
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{
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struct _adapter *padapter = context;
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complete(&padapter->rtl8712_fw_ready);
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if (!firmware) {
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struct usb_device *udev = padapter->dvobjpriv.pusbdev;
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struct usb_interface *pusb_intf = padapter->pusb_intf;
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printk(KERN_ERR "r8712u: Firmware request failed\n");
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padapter->fw_found = false;
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usb_put_dev(udev);
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usb_set_intfdata(pusb_intf, NULL);
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return;
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}
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padapter->fw = firmware;
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padapter->fw_found = true;
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/* firmware available - start netdev */
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register_netdev(padapter->pnetdev);
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}
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static const char firmware_file[] = "rtlwifi/rtl8712u.bin";
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int rtl871x_load_fw(struct _adapter *padapter)
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{
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struct device *dev = &padapter->dvobjpriv.pusbdev->dev;
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int rc;
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init_completion(&padapter->rtl8712_fw_ready);
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printk(KERN_INFO "r8712u: Loading firmware from \"%s\"\n",
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firmware_file);
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rc = request_firmware_nowait(THIS_MODULE, 1, firmware_file, dev,
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GFP_KERNEL, padapter, rtl871x_load_fw_cb);
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if (rc)
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printk(KERN_ERR "r8712u: Firmware request error %d\n", rc);
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return rc;
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}
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MODULE_FIRMWARE("rtlwifi/rtl8712u.bin");
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static u32 rtl871x_open_fw(struct _adapter *padapter, const u8 **ppmappedfw)
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{
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const struct firmware **praw = &padapter->fw;
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if (padapter->fw->size > 200000) {
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printk(KERN_ERR "r8172u: Badfw->size of %d\n",
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(int)padapter->fw->size);
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return 0;
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}
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*ppmappedfw = (u8 *)((*praw)->data);
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return (*praw)->size;
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}
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static void fill_fwpriv(struct _adapter *padapter, struct fw_priv *pfwpriv)
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{
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struct dvobj_priv *pdvobj = (struct dvobj_priv *)&padapter->dvobjpriv;
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struct registry_priv *pregpriv = &padapter->registrypriv;
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memset(pfwpriv, 0, sizeof(struct fw_priv));
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/* todo: check if needs endian conversion */
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pfwpriv->hci_sel = RTL8712_HCI_TYPE_72USB;
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pfwpriv->usb_ep_num = (u8)pdvobj->nr_endpoint;
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pfwpriv->bw_40MHz_en = pregpriv->cbw40_enable;
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switch (pregpriv->rf_config) {
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case RTL8712_RF_1T1R:
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pfwpriv->rf_config = RTL8712_RFC_1T1R;
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break;
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case RTL8712_RF_2T2R:
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pfwpriv->rf_config = RTL8712_RFC_2T2R;
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break;
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case RTL8712_RF_1T2R:
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default:
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pfwpriv->rf_config = RTL8712_RFC_1T2R;
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}
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pfwpriv->mp_mode = (pregpriv->mp_mode == 1) ? 1 : 0;
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pfwpriv->vcsType = pregpriv->vrtl_carrier_sense; /* 0:off 1:on 2:auto */
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pfwpriv->vcsMode = pregpriv->vcs_type; /* 1:RTS/CTS 2:CTS to self */
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/* default enable turboMode */
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pfwpriv->turboMode = ((pregpriv->wifi_test == 1) ? 0 : 1);
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pfwpriv->lowPowerMode = pregpriv->low_power;
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}
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static void update_fwhdr(struct fw_hdr *pfwhdr, const u8 *pmappedfw)
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{
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pfwhdr->signature = le16_to_cpu(*(u16 *)pmappedfw);
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pfwhdr->version = le16_to_cpu(*(u16 *)(pmappedfw+2));
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/* define the size of boot loader */
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pfwhdr->dmem_size = le32_to_cpu(*(uint *)(pmappedfw+4));
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/* define the size of FW in IMEM */
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pfwhdr->img_IMEM_size = le32_to_cpu(*(uint *)(pmappedfw+8));
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/* define the size of FW in SRAM */
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pfwhdr->img_SRAM_size = le32_to_cpu(*(uint *)(pmappedfw+12));
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/* define the size of DMEM variable */
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pfwhdr->fw_priv_sz = le32_to_cpu(*(uint *)(pmappedfw+16));
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}
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static u8 chk_fwhdr(struct fw_hdr *pfwhdr, u32 ulfilelength)
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{
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u32 fwhdrsz, fw_sz;
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u8 intf, rfconf;
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/* check signature */
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if ((pfwhdr->signature != 0x8712) && (pfwhdr->signature != 0x8192))
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return _FAIL;
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/* check interface */
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intf = (u8)((pfwhdr->version&0x3000) >> 12);
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/* check rf_conf */
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rfconf = (u8)((pfwhdr->version&0xC000) >> 14);
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/* check fw_priv_sze & sizeof(struct fw_priv) */
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if (pfwhdr->fw_priv_sz != sizeof(struct fw_priv))
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return _FAIL;
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/* check fw_sz & image_fw_sz */
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fwhdrsz = FIELD_OFFSET(struct fw_hdr, fwpriv) + pfwhdr->fw_priv_sz;
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fw_sz = fwhdrsz + pfwhdr->img_IMEM_size + pfwhdr->img_SRAM_size +
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pfwhdr->dmem_size;
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if (fw_sz != ulfilelength)
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return _FAIL;
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return _SUCCESS;
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}
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static u8 rtl8712_dl_fw(struct _adapter *padapter)
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{
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sint i;
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u8 tmp8, tmp8_a;
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u16 tmp16;
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u32 maxlen = 0, tmp32; /* for compare usage */
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uint dump_imem_sz, imem_sz, dump_emem_sz, emem_sz; /* max = 49152; */
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struct fw_hdr fwhdr;
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u32 ulfilelength; /* FW file size */
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const u8 *pmappedfw = NULL;
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u8 *ptmpchar = NULL, *ppayload, *ptr;
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struct tx_desc *ptx_desc;
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u32 txdscp_sz = sizeof(struct tx_desc);
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u8 ret = _FAIL;
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ulfilelength = rtl871x_open_fw(padapter, &pmappedfw);
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if (pmappedfw && (ulfilelength > 0)) {
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update_fwhdr(&fwhdr, pmappedfw);
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if (chk_fwhdr(&fwhdr, ulfilelength) == _FAIL)
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return ret;
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fill_fwpriv(padapter, &fwhdr.fwpriv);
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/* firmware check ok */
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maxlen = (fwhdr.img_IMEM_size > fwhdr.img_SRAM_size) ?
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fwhdr.img_IMEM_size : fwhdr.img_SRAM_size;
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maxlen += txdscp_sz;
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ptmpchar = _malloc(maxlen + FWBUFF_ALIGN_SZ);
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if (ptmpchar == NULL)
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return ret;
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ptx_desc = (struct tx_desc *)(ptmpchar + FWBUFF_ALIGN_SZ -
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((addr_t)(ptmpchar) & (FWBUFF_ALIGN_SZ - 1)));
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ppayload = (u8 *)(ptx_desc) + txdscp_sz;
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ptr = (u8 *)pmappedfw + FIELD_OFFSET(struct fw_hdr, fwpriv) +
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fwhdr.fw_priv_sz;
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/* Download FirmWare */
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/* 1. determine IMEM code size and Load IMEM Code Section */
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imem_sz = fwhdr.img_IMEM_size;
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do {
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memset(ptx_desc, 0, TXDESC_SIZE);
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if (imem_sz > MAX_DUMP_FWSZ/*49152*/)
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dump_imem_sz = MAX_DUMP_FWSZ;
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else {
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dump_imem_sz = imem_sz;
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ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
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}
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ptx_desc->txdw0 |= cpu_to_le32(dump_imem_sz &
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0x0000ffff);
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memcpy(ppayload, ptr, dump_imem_sz);
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r8712_write_mem(padapter, RTL8712_DMA_VOQ,
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dump_imem_sz + TXDESC_SIZE,
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(u8 *)ptx_desc);
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ptr += dump_imem_sz;
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imem_sz -= dump_imem_sz;
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} while (imem_sz > 0);
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i = 10;
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tmp16 = r8712_read16(padapter, TCR);
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while (((tmp16 & _IMEM_CODE_DONE) == 0) && (i > 0)) {
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udelay(10);
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tmp16 = r8712_read16(padapter, TCR);
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i--;
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}
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if (i == 0 || (tmp16 & _IMEM_CHK_RPT) == 0)
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goto exit_fail;
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/* 2.Download EMEM code size and Load EMEM Code Section */
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emem_sz = fwhdr.img_SRAM_size;
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do {
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memset(ptx_desc, 0, TXDESC_SIZE);
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if (emem_sz > MAX_DUMP_FWSZ) /* max=48k */
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dump_emem_sz = MAX_DUMP_FWSZ;
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else {
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dump_emem_sz = emem_sz;
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ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
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}
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ptx_desc->txdw0 |= cpu_to_le32(dump_emem_sz &
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0x0000ffff);
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memcpy(ppayload, ptr, dump_emem_sz);
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r8712_write_mem(padapter, RTL8712_DMA_VOQ,
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dump_emem_sz+TXDESC_SIZE, (u8 *)ptx_desc);
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ptr += dump_emem_sz;
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emem_sz -= dump_emem_sz;
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} while (emem_sz > 0);
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i = 5;
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tmp16 = r8712_read16(padapter, TCR);
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while (((tmp16 & _EMEM_CODE_DONE) == 0) && (i > 0)) {
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udelay(10);
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tmp16 = r8712_read16(padapter, TCR);
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i--;
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}
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if (i == 0 || (tmp16 & _EMEM_CHK_RPT) == 0)
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goto exit_fail;
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/* 3.Enable CPU */
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tmp8 = r8712_read8(padapter, SYS_CLKR);
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r8712_write8(padapter, SYS_CLKR, tmp8|BIT(2));
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tmp8_a = r8712_read8(padapter, SYS_CLKR);
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if (tmp8_a != (tmp8|BIT(2)))
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goto exit_fail;
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tmp8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
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r8712_write8(padapter, SYS_FUNC_EN+1, tmp8|BIT(2));
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tmp8_a = r8712_read8(padapter, SYS_FUNC_EN + 1);
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if (tmp8_a != (tmp8|BIT(2)))
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goto exit_fail;
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tmp32 = r8712_read32(padapter, TCR);
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/* 4.polling IMEM Ready */
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i = 100;
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tmp16 = r8712_read16(padapter, TCR);
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while (((tmp16 & _IMEM_RDY) == 0) && (i > 0)) {
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msleep(20);
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tmp16 = r8712_read16(padapter, TCR);
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i--;
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}
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if (i == 0) {
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r8712_write16(padapter, 0x10250348, 0xc000);
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r8712_write16(padapter, 0x10250348, 0xc001);
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r8712_write16(padapter, 0x10250348, 0x2000);
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r8712_write16(padapter, 0x10250348, 0x2001);
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r8712_write16(padapter, 0x10250348, 0x2002);
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r8712_write16(padapter, 0x10250348, 0x2003);
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goto exit_fail;
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}
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/* 5.Download DMEM code size and Load EMEM Code Section */
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memset(ptx_desc, 0, TXDESC_SIZE);
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ptx_desc->txdw0 |= cpu_to_le32(fwhdr.fw_priv_sz&0x0000ffff);
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ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
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memcpy(ppayload, &fwhdr.fwpriv, fwhdr.fw_priv_sz);
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r8712_write_mem(padapter, RTL8712_DMA_VOQ,
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fwhdr.fw_priv_sz + TXDESC_SIZE, (u8 *)ptx_desc);
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/* polling dmem code done */
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i = 100;
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tmp16 = r8712_read16(padapter, TCR);
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while (((tmp16 & _DMEM_CODE_DONE) == 0) && (i > 0)) {
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msleep(20);
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tmp16 = r8712_read16(padapter, TCR);
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i--;
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}
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if (i == 0)
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goto exit_fail;
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tmp8 = r8712_read8(padapter, 0x1025000A);
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if (tmp8 & BIT(4)) /* When boot from EEPROM,
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& FW need more time to read EEPROM */
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i = 60;
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else /* boot from EFUSE */
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i = 30;
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tmp16 = r8712_read16(padapter, TCR);
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while (((tmp16 & _FWRDY) == 0) && (i > 0)) {
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msleep(100);
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tmp16 = r8712_read16(padapter, TCR);
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i--;
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}
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if (i == 0)
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goto exit_fail;
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} else
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goto exit_fail;
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ret = _SUCCESS;
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exit_fail:
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kfree(ptmpchar);
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return ret;
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}
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uint rtl8712_hal_init(struct _adapter *padapter)
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{
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u32 val32;
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int i;
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/* r8712 firmware download */
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if (rtl8712_dl_fw(padapter) != _SUCCESS)
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return _FAIL;
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printk(KERN_INFO "r8712u: 1 RCR=0x%x\n", r8712_read32(padapter, RCR));
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val32 = r8712_read32(padapter, RCR);
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r8712_write32(padapter, RCR, (val32 | BIT(26))); /* Enable RX TCP
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Checksum offload */
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printk(KERN_INFO "r8712u: 2 RCR=0x%x\n", r8712_read32(padapter, RCR));
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val32 = r8712_read32(padapter, RCR);
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r8712_write32(padapter, RCR, (val32|BIT(25))); /* Append PHY status */
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val32 = 0;
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val32 = r8712_read32(padapter, 0x10250040);
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r8712_write32(padapter, 0x10250040, (val32&0x00FFFFFF));
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/* for usb rx aggregation */
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r8712_write8(padapter, 0x102500B5, r8712_read8(padapter, 0x102500B5) |
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BIT(0)); /* page = 128bytes */
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r8712_write8(padapter, 0x102500BD, r8712_read8(padapter, 0x102500BD) |
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BIT(7)); /* enable usb rx aggregation */
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r8712_write8(padapter, 0x102500D9, 1); /* TH=1 => means that invalidate
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* usb rx aggregation */
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r8712_write8(padapter, 0x1025FE5B, 0x04); /* 1.7ms/4 */
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/* Fix the RX FIFO issue(USB error) */
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r8712_write8(padapter, 0x1025fe5C, r8712_read8(padapter, 0x1025fe5C)
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| BIT(7));
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for (i = 0; i < 6; i++)
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padapter->eeprompriv.mac_addr[i] = r8712_read8(padapter,
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MACID + i);
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return _SUCCESS;
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}
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uint rtl8712_hal_deinit(struct _adapter *padapter)
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{
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r8712_write8(padapter, RF_CTRL, 0x00);
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/* Turn off BB */
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msleep(20);
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/* Turn off MAC */
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r8712_write8(padapter, SYS_CLKR+1, 0x38); /* Switch Control Path */
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r8712_write8(padapter, SYS_FUNC_EN+1, 0x70);
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r8712_write8(padapter, PMC_FSM, 0x06); /* Enable Loader Data Keep */
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r8712_write8(padapter, SYS_ISO_CTRL, 0xF9); /* Isolation signals from
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* CORE, PLL */
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r8712_write8(padapter, SYS_ISO_CTRL+1, 0xe8); /* Enable EFUSE 1.2V */
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r8712_write8(padapter, AFE_PLL_CTRL, 0x00); /* Disable AFE PLL. */
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r8712_write8(padapter, LDOA15_CTRL, 0x54); /* Disable A15V */
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r8712_write8(padapter, SYS_FUNC_EN+1, 0x50); /* Disable E-Fuse 1.2V */
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r8712_write8(padapter, LDOV12D_CTRL, 0x24); /* Disable LDO12(for CE) */
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r8712_write8(padapter, AFE_MISC, 0x30); /* Disable AFE BG&MB */
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/* Option for Disable 1.6V LDO. */
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r8712_write8(padapter, SPS0_CTRL, 0x56); /* Disable 1.6V LDO */
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r8712_write8(padapter, SPS0_CTRL+1, 0x43); /* Set SW PFM */
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return _SUCCESS;
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}
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uint rtl871x_hal_init(struct _adapter *padapter)
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{
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padapter->hw_init_completed = false;
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if (padapter->halpriv.hal_bus_init == NULL)
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return _FAIL;
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else {
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if (padapter->halpriv.hal_bus_init(padapter) != _SUCCESS)
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return _FAIL;
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}
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if (rtl8712_hal_init(padapter) == _SUCCESS)
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padapter->hw_init_completed = true;
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else {
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padapter->hw_init_completed = false;
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return _FAIL;
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}
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return _SUCCESS;
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}
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