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![Gustavo A. R. Silva](/assets/img/avatar_default.png)
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
1693 lines
42 KiB
C
1693 lines
42 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* mISDNisar.c ISAR (Siemens PSB 7110) specific functions
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*
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* Author Karsten Keil (keil@isdn4linux.de)
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*
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* Copyright 2009 by Karsten Keil <keil@isdn4linux.de>
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*/
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/* define this to enable static debug messages, if you kernel supports
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* dynamic debugging, you should use debugfs for this
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*/
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/* #define DEBUG */
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#include <linux/gfp.h>
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#include <linux/delay.h>
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#include <linux/vmalloc.h>
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#include <linux/mISDNhw.h>
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#include <linux/module.h>
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#include "isar.h"
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#define ISAR_REV "2.1"
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MODULE_AUTHOR("Karsten Keil");
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MODULE_LICENSE("GPL v2");
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MODULE_VERSION(ISAR_REV);
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#define DEBUG_HW_FIRMWARE_FIFO 0x10000
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static const u8 faxmodulation[] = {3, 24, 48, 72, 73, 74, 96, 97, 98, 121,
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122, 145, 146};
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#define FAXMODCNT 13
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static void isar_setup(struct isar_hw *);
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static inline int
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waitforHIA(struct isar_hw *isar, int timeout)
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{
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int t = timeout;
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u8 val = isar->read_reg(isar->hw, ISAR_HIA);
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while ((val & 1) && t) {
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udelay(1);
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t--;
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val = isar->read_reg(isar->hw, ISAR_HIA);
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}
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pr_debug("%s: HIA after %dus\n", isar->name, timeout - t);
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return timeout;
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}
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/*
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* send msg to ISAR mailbox
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* if msg is NULL use isar->buf
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*/
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static int
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send_mbox(struct isar_hw *isar, u8 his, u8 creg, u8 len, u8 *msg)
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{
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if (!waitforHIA(isar, 1000))
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return 0;
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pr_debug("send_mbox(%02x,%02x,%d)\n", his, creg, len);
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isar->write_reg(isar->hw, ISAR_CTRL_H, creg);
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isar->write_reg(isar->hw, ISAR_CTRL_L, len);
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isar->write_reg(isar->hw, ISAR_WADR, 0);
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if (!msg)
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msg = isar->buf;
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if (msg && len) {
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isar->write_fifo(isar->hw, ISAR_MBOX, msg, len);
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if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
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int l = 0;
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while (l < (int)len) {
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hex_dump_to_buffer(msg + l, len - l, 32, 1,
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isar->log, 256, 1);
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pr_debug("%s: %s %02x: %s\n", isar->name,
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__func__, l, isar->log);
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l += 32;
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}
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}
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}
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isar->write_reg(isar->hw, ISAR_HIS, his);
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waitforHIA(isar, 1000);
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return 1;
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}
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/*
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* receive message from ISAR mailbox
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* if msg is NULL use isar->buf
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*/
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static void
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rcv_mbox(struct isar_hw *isar, u8 *msg)
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{
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if (!msg)
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msg = isar->buf;
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isar->write_reg(isar->hw, ISAR_RADR, 0);
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if (msg && isar->clsb) {
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isar->read_fifo(isar->hw, ISAR_MBOX, msg, isar->clsb);
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if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
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int l = 0;
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while (l < (int)isar->clsb) {
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hex_dump_to_buffer(msg + l, isar->clsb - l, 32,
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1, isar->log, 256, 1);
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pr_debug("%s: %s %02x: %s\n", isar->name,
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__func__, l, isar->log);
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l += 32;
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}
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}
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}
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isar->write_reg(isar->hw, ISAR_IIA, 0);
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}
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static inline void
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get_irq_infos(struct isar_hw *isar)
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{
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isar->iis = isar->read_reg(isar->hw, ISAR_IIS);
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isar->cmsb = isar->read_reg(isar->hw, ISAR_CTRL_H);
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isar->clsb = isar->read_reg(isar->hw, ISAR_CTRL_L);
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pr_debug("%s: rcv_mbox(%02x,%02x,%d)\n", isar->name,
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isar->iis, isar->cmsb, isar->clsb);
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}
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/*
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* poll answer message from ISAR mailbox
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* should be used only with ISAR IRQs disabled before DSP was started
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*
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*/
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static int
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poll_mbox(struct isar_hw *isar, int maxdelay)
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{
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int t = maxdelay;
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u8 irq;
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irq = isar->read_reg(isar->hw, ISAR_IRQBIT);
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while (t && !(irq & ISAR_IRQSTA)) {
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udelay(1);
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t--;
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}
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if (t) {
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get_irq_infos(isar);
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rcv_mbox(isar, NULL);
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}
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pr_debug("%s: pulled %d bytes after %d us\n",
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isar->name, isar->clsb, maxdelay - t);
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return t;
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}
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static int
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ISARVersion(struct isar_hw *isar)
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{
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int ver;
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/* disable ISAR IRQ */
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isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
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isar->buf[0] = ISAR_MSG_HWVER;
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isar->buf[1] = 0;
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isar->buf[2] = 1;
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if (!send_mbox(isar, ISAR_HIS_VNR, 0, 3, NULL))
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return -1;
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if (!poll_mbox(isar, 1000))
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return -2;
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if (isar->iis == ISAR_IIS_VNR) {
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if (isar->clsb == 1) {
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ver = isar->buf[0] & 0xf;
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return ver;
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}
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return -3;
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}
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return -4;
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}
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static int
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load_firmware(struct isar_hw *isar, const u8 *buf, int size)
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{
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u32 saved_debug = isar->ch[0].bch.debug;
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int ret, cnt;
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u8 nom, noc;
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u16 left, val, *sp = (u16 *)buf;
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u8 *mp;
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u_long flags;
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struct {
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u16 sadr;
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u16 len;
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u16 d_key;
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} blk_head;
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if (1 != isar->version) {
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pr_err("%s: ISAR wrong version %d firmware download aborted\n",
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isar->name, isar->version);
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return -EINVAL;
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}
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if (!(saved_debug & DEBUG_HW_FIRMWARE_FIFO))
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isar->ch[0].bch.debug &= ~DEBUG_HW_BFIFO;
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pr_debug("%s: load firmware %d words (%d bytes)\n",
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isar->name, size / 2, size);
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cnt = 0;
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size /= 2;
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/* disable ISAR IRQ */
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spin_lock_irqsave(isar->hwlock, flags);
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isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
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spin_unlock_irqrestore(isar->hwlock, flags);
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while (cnt < size) {
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blk_head.sadr = le16_to_cpu(*sp++);
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blk_head.len = le16_to_cpu(*sp++);
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blk_head.d_key = le16_to_cpu(*sp++);
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cnt += 3;
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pr_debug("ISAR firmware block (%#x,%d,%#x)\n",
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blk_head.sadr, blk_head.len, blk_head.d_key & 0xff);
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left = blk_head.len;
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if (cnt + left > size) {
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pr_info("%s: firmware error have %d need %d words\n",
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isar->name, size, cnt + left);
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ret = -EINVAL;
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goto reterrflg;
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}
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spin_lock_irqsave(isar->hwlock, flags);
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if (!send_mbox(isar, ISAR_HIS_DKEY, blk_head.d_key & 0xff,
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0, NULL)) {
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pr_info("ISAR send_mbox dkey failed\n");
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ret = -ETIME;
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goto reterror;
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}
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if (!poll_mbox(isar, 1000)) {
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pr_warn("ISAR poll_mbox dkey failed\n");
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ret = -ETIME;
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goto reterror;
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}
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spin_unlock_irqrestore(isar->hwlock, flags);
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if ((isar->iis != ISAR_IIS_DKEY) || isar->cmsb || isar->clsb) {
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pr_info("ISAR wrong dkey response (%x,%x,%x)\n",
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isar->iis, isar->cmsb, isar->clsb);
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ret = 1;
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goto reterrflg;
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}
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while (left > 0) {
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if (left > 126)
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noc = 126;
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else
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noc = left;
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nom = (2 * noc) + 3;
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mp = isar->buf;
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/* the ISAR is big endian */
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*mp++ = blk_head.sadr >> 8;
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*mp++ = blk_head.sadr & 0xFF;
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left -= noc;
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cnt += noc;
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*mp++ = noc;
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pr_debug("%s: load %3d words at %04x\n", isar->name,
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noc, blk_head.sadr);
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blk_head.sadr += noc;
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while (noc) {
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val = le16_to_cpu(*sp++);
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*mp++ = val >> 8;
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*mp++ = val & 0xFF;
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noc--;
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}
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spin_lock_irqsave(isar->hwlock, flags);
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if (!send_mbox(isar, ISAR_HIS_FIRM, 0, nom, NULL)) {
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pr_info("ISAR send_mbox prog failed\n");
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ret = -ETIME;
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goto reterror;
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}
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if (!poll_mbox(isar, 1000)) {
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pr_info("ISAR poll_mbox prog failed\n");
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ret = -ETIME;
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goto reterror;
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}
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spin_unlock_irqrestore(isar->hwlock, flags);
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if ((isar->iis != ISAR_IIS_FIRM) ||
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isar->cmsb || isar->clsb) {
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pr_info("ISAR wrong prog response (%x,%x,%x)\n",
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isar->iis, isar->cmsb, isar->clsb);
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ret = -EIO;
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goto reterrflg;
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}
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}
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pr_debug("%s: ISAR firmware block %d words loaded\n",
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isar->name, blk_head.len);
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}
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isar->ch[0].bch.debug = saved_debug;
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/* 10ms delay */
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cnt = 10;
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while (cnt--)
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mdelay(1);
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isar->buf[0] = 0xff;
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isar->buf[1] = 0xfe;
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isar->bstat = 0;
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spin_lock_irqsave(isar->hwlock, flags);
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if (!send_mbox(isar, ISAR_HIS_STDSP, 0, 2, NULL)) {
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pr_info("ISAR send_mbox start dsp failed\n");
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ret = -ETIME;
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goto reterror;
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}
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if (!poll_mbox(isar, 1000)) {
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pr_info("ISAR poll_mbox start dsp failed\n");
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ret = -ETIME;
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goto reterror;
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}
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if ((isar->iis != ISAR_IIS_STDSP) || isar->cmsb || isar->clsb) {
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pr_info("ISAR wrong start dsp response (%x,%x,%x)\n",
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isar->iis, isar->cmsb, isar->clsb);
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ret = -EIO;
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goto reterror;
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} else
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pr_debug("%s: ISAR start dsp success\n", isar->name);
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/* NORMAL mode entered */
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/* Enable IRQs of ISAR */
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isar->write_reg(isar->hw, ISAR_IRQBIT, ISAR_IRQSTA);
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spin_unlock_irqrestore(isar->hwlock, flags);
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cnt = 1000; /* max 1s */
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while ((!isar->bstat) && cnt) {
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mdelay(1);
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cnt--;
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}
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if (!cnt) {
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pr_info("ISAR no general status event received\n");
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ret = -ETIME;
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goto reterrflg;
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} else
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pr_debug("%s: ISAR general status event %x\n",
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isar->name, isar->bstat);
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/* 10ms delay */
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cnt = 10;
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while (cnt--)
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mdelay(1);
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isar->iis = 0;
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spin_lock_irqsave(isar->hwlock, flags);
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if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_STST, 0, NULL)) {
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pr_info("ISAR send_mbox self tst failed\n");
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ret = -ETIME;
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goto reterror;
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}
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spin_unlock_irqrestore(isar->hwlock, flags);
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cnt = 10000; /* max 100 ms */
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while ((isar->iis != ISAR_IIS_DIAG) && cnt) {
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udelay(10);
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cnt--;
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}
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mdelay(1);
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if (!cnt) {
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pr_info("ISAR no self tst response\n");
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ret = -ETIME;
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goto reterrflg;
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}
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if ((isar->cmsb == ISAR_CTRL_STST) && (isar->clsb == 1)
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&& (isar->buf[0] == 0))
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pr_debug("%s: ISAR selftest OK\n", isar->name);
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else {
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pr_info("ISAR selftest not OK %x/%x/%x\n",
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isar->cmsb, isar->clsb, isar->buf[0]);
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ret = -EIO;
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goto reterrflg;
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}
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spin_lock_irqsave(isar->hwlock, flags);
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isar->iis = 0;
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if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_SWVER, 0, NULL)) {
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pr_info("ISAR RQST SVN failed\n");
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ret = -ETIME;
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goto reterror;
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}
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spin_unlock_irqrestore(isar->hwlock, flags);
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cnt = 30000; /* max 300 ms */
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while ((isar->iis != ISAR_IIS_DIAG) && cnt) {
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udelay(10);
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cnt--;
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}
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mdelay(1);
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if (!cnt) {
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pr_info("ISAR no SVN response\n");
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ret = -ETIME;
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goto reterrflg;
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} else {
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if ((isar->cmsb == ISAR_CTRL_SWVER) && (isar->clsb == 1)) {
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pr_notice("%s: ISAR software version %#x\n",
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isar->name, isar->buf[0]);
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} else {
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pr_info("%s: ISAR wrong swver response (%x,%x)"
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" cnt(%d)\n", isar->name, isar->cmsb,
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isar->clsb, cnt);
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ret = -EIO;
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goto reterrflg;
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}
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}
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spin_lock_irqsave(isar->hwlock, flags);
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isar_setup(isar);
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spin_unlock_irqrestore(isar->hwlock, flags);
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ret = 0;
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reterrflg:
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spin_lock_irqsave(isar->hwlock, flags);
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reterror:
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isar->ch[0].bch.debug = saved_debug;
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if (ret)
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/* disable ISAR IRQ */
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isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
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spin_unlock_irqrestore(isar->hwlock, flags);
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return ret;
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}
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static inline void
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deliver_status(struct isar_ch *ch, int status)
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{
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pr_debug("%s: HL->LL FAXIND %x\n", ch->is->name, status);
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_queue_data(&ch->bch.ch, PH_CONTROL_IND, status, 0, NULL, GFP_ATOMIC);
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}
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static inline void
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isar_rcv_frame(struct isar_ch *ch)
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{
|
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u8 *ptr;
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int maxlen;
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|
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if (!ch->is->clsb) {
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pr_debug("%s; ISAR zero len frame\n", ch->is->name);
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ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
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return;
|
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}
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if (test_bit(FLG_RX_OFF, &ch->bch.Flags)) {
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ch->bch.dropcnt += ch->is->clsb;
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ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
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return;
|
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}
|
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switch (ch->bch.state) {
|
|
case ISDN_P_NONE:
|
|
pr_debug("%s: ISAR protocol 0 spurious IIS_RDATA %x/%x/%x\n",
|
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ch->is->name, ch->is->iis, ch->is->cmsb, ch->is->clsb);
|
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ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
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break;
|
|
case ISDN_P_B_RAW:
|
|
case ISDN_P_B_L2DTMF:
|
|
case ISDN_P_B_MODEM_ASYNC:
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maxlen = bchannel_get_rxbuf(&ch->bch, ch->is->clsb);
|
|
if (maxlen < 0) {
|
|
pr_warn("%s.B%d: No bufferspace for %d bytes\n",
|
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ch->is->name, ch->bch.nr, ch->is->clsb);
|
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ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
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break;
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}
|
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rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb));
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recv_Bchannel(&ch->bch, 0, false);
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break;
|
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case ISDN_P_B_HDLC:
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maxlen = bchannel_get_rxbuf(&ch->bch, ch->is->clsb);
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if (maxlen < 0) {
|
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pr_warn("%s.B%d: No bufferspace for %d bytes\n",
|
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ch->is->name, ch->bch.nr, ch->is->clsb);
|
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ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
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break;
|
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}
|
|
if (ch->is->cmsb & HDLC_ERROR) {
|
|
pr_debug("%s: ISAR frame error %x len %d\n",
|
|
ch->is->name, ch->is->cmsb, ch->is->clsb);
|
|
#ifdef ERROR_STATISTIC
|
|
if (ch->is->cmsb & HDLC_ERR_RER)
|
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ch->bch.err_inv++;
|
|
if (ch->is->cmsb & HDLC_ERR_CER)
|
|
ch->bch.err_crc++;
|
|
#endif
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
break;
|
|
}
|
|
if (ch->is->cmsb & HDLC_FSD)
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
ptr = skb_put(ch->bch.rx_skb, ch->is->clsb);
|
|
rcv_mbox(ch->is, ptr);
|
|
if (ch->is->cmsb & HDLC_FED) {
|
|
if (ch->bch.rx_skb->len < 3) { /* last 2 are the FCS */
|
|
pr_debug("%s: ISAR frame to short %d\n",
|
|
ch->is->name, ch->bch.rx_skb->len);
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
break;
|
|
}
|
|
skb_trim(ch->bch.rx_skb, ch->bch.rx_skb->len - 2);
|
|
recv_Bchannel(&ch->bch, 0, false);
|
|
}
|
|
break;
|
|
case ISDN_P_B_T30_FAX:
|
|
if (ch->state != STFAX_ACTIV) {
|
|
pr_debug("%s: isar_rcv_frame: not ACTIV\n",
|
|
ch->is->name);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
if (ch->bch.rx_skb)
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
break;
|
|
}
|
|
if (!ch->bch.rx_skb) {
|
|
ch->bch.rx_skb = mI_alloc_skb(ch->bch.maxlen,
|
|
GFP_ATOMIC);
|
|
if (unlikely(!ch->bch.rx_skb)) {
|
|
pr_info("%s: B receive out of memory\n",
|
|
__func__);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
break;
|
|
}
|
|
}
|
|
if (ch->cmd == PCTRL_CMD_FRM) {
|
|
rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb));
|
|
pr_debug("%s: isar_rcv_frame: %d\n",
|
|
ch->is->name, ch->bch.rx_skb->len);
|
|
if (ch->is->cmsb & SART_NMD) { /* ABORT */
|
|
pr_debug("%s: isar_rcv_frame: no more data\n",
|
|
ch->is->name);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
send_mbox(ch->is, SET_DPS(ch->dpath) |
|
|
ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
|
|
0, NULL);
|
|
ch->state = STFAX_ESCAPE;
|
|
/* set_skb_flag(skb, DF_NOMOREDATA); */
|
|
}
|
|
recv_Bchannel(&ch->bch, 0, false);
|
|
if (ch->is->cmsb & SART_NMD)
|
|
deliver_status(ch, HW_MOD_NOCARR);
|
|
break;
|
|
}
|
|
if (ch->cmd != PCTRL_CMD_FRH) {
|
|
pr_debug("%s: isar_rcv_frame: unknown fax mode %x\n",
|
|
ch->is->name, ch->cmd);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
if (ch->bch.rx_skb)
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
break;
|
|
}
|
|
/* PCTRL_CMD_FRH */
|
|
if ((ch->bch.rx_skb->len + ch->is->clsb) >
|
|
(ch->bch.maxlen + 2)) {
|
|
pr_info("%s: %s incoming packet too large\n",
|
|
ch->is->name, __func__);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
break;
|
|
} else if (ch->is->cmsb & HDLC_ERROR) {
|
|
pr_info("%s: ISAR frame error %x len %d\n",
|
|
ch->is->name, ch->is->cmsb, ch->is->clsb);
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
break;
|
|
}
|
|
if (ch->is->cmsb & HDLC_FSD)
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
ptr = skb_put(ch->bch.rx_skb, ch->is->clsb);
|
|
rcv_mbox(ch->is, ptr);
|
|
if (ch->is->cmsb & HDLC_FED) {
|
|
if (ch->bch.rx_skb->len < 3) { /* last 2 are the FCS */
|
|
pr_info("%s: ISAR frame to short %d\n",
|
|
ch->is->name, ch->bch.rx_skb->len);
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
break;
|
|
}
|
|
skb_trim(ch->bch.rx_skb, ch->bch.rx_skb->len - 2);
|
|
recv_Bchannel(&ch->bch, 0, false);
|
|
}
|
|
if (ch->is->cmsb & SART_NMD) { /* ABORT */
|
|
pr_debug("%s: isar_rcv_frame: no more data\n",
|
|
ch->is->name);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
if (ch->bch.rx_skb)
|
|
skb_trim(ch->bch.rx_skb, 0);
|
|
send_mbox(ch->is, SET_DPS(ch->dpath) |
|
|
ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC, 0, NULL);
|
|
ch->state = STFAX_ESCAPE;
|
|
deliver_status(ch, HW_MOD_NOCARR);
|
|
}
|
|
break;
|
|
default:
|
|
pr_info("isar_rcv_frame protocol (%x)error\n", ch->bch.state);
|
|
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
isar_fill_fifo(struct isar_ch *ch)
|
|
{
|
|
int count;
|
|
u8 msb;
|
|
u8 *ptr;
|
|
|
|
pr_debug("%s: ch%d tx_skb %d tx_idx %d\n", ch->is->name, ch->bch.nr,
|
|
ch->bch.tx_skb ? ch->bch.tx_skb->len : -1, ch->bch.tx_idx);
|
|
if (!(ch->is->bstat &
|
|
(ch->dpath == 1 ? BSTAT_RDM1 : BSTAT_RDM2)))
|
|
return;
|
|
if (!ch->bch.tx_skb) {
|
|
if (!test_bit(FLG_TX_EMPTY, &ch->bch.Flags) ||
|
|
(ch->bch.state != ISDN_P_B_RAW))
|
|
return;
|
|
count = ch->mml;
|
|
/* use the card buffer */
|
|
memset(ch->is->buf, ch->bch.fill[0], count);
|
|
send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
|
|
0, count, ch->is->buf);
|
|
return;
|
|
}
|
|
count = ch->bch.tx_skb->len - ch->bch.tx_idx;
|
|
if (count <= 0)
|
|
return;
|
|
if (count > ch->mml) {
|
|
msb = 0;
|
|
count = ch->mml;
|
|
} else {
|
|
msb = HDLC_FED;
|
|
}
|
|
ptr = ch->bch.tx_skb->data + ch->bch.tx_idx;
|
|
if (!ch->bch.tx_idx) {
|
|
pr_debug("%s: frame start\n", ch->is->name);
|
|
if ((ch->bch.state == ISDN_P_B_T30_FAX) &&
|
|
(ch->cmd == PCTRL_CMD_FTH)) {
|
|
if (count > 1) {
|
|
if ((ptr[0] == 0xff) && (ptr[1] == 0x13)) {
|
|
/* last frame */
|
|
test_and_set_bit(FLG_LASTDATA,
|
|
&ch->bch.Flags);
|
|
pr_debug("%s: set LASTDATA\n",
|
|
ch->is->name);
|
|
if (msb == HDLC_FED)
|
|
test_and_set_bit(FLG_DLEETX,
|
|
&ch->bch.Flags);
|
|
}
|
|
}
|
|
}
|
|
msb |= HDLC_FST;
|
|
}
|
|
ch->bch.tx_idx += count;
|
|
switch (ch->bch.state) {
|
|
case ISDN_P_NONE:
|
|
pr_info("%s: wrong protocol 0\n", __func__);
|
|
break;
|
|
case ISDN_P_B_RAW:
|
|
case ISDN_P_B_L2DTMF:
|
|
case ISDN_P_B_MODEM_ASYNC:
|
|
send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
|
|
0, count, ptr);
|
|
break;
|
|
case ISDN_P_B_HDLC:
|
|
send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
|
|
msb, count, ptr);
|
|
break;
|
|
case ISDN_P_B_T30_FAX:
|
|
if (ch->state != STFAX_ACTIV)
|
|
pr_debug("%s: not ACTIV\n", ch->is->name);
|
|
else if (ch->cmd == PCTRL_CMD_FTH)
|
|
send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
|
|
msb, count, ptr);
|
|
else if (ch->cmd == PCTRL_CMD_FTM)
|
|
send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
|
|
0, count, ptr);
|
|
else
|
|
pr_debug("%s: not FTH/FTM\n", ch->is->name);
|
|
break;
|
|
default:
|
|
pr_info("%s: protocol(%x) error\n",
|
|
__func__, ch->bch.state);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static inline struct isar_ch *
|
|
sel_bch_isar(struct isar_hw *isar, u8 dpath)
|
|
{
|
|
struct isar_ch *base = &isar->ch[0];
|
|
|
|
if ((!dpath) || (dpath > 2))
|
|
return NULL;
|
|
if (base->dpath == dpath)
|
|
return base;
|
|
base++;
|
|
if (base->dpath == dpath)
|
|
return base;
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
send_next(struct isar_ch *ch)
|
|
{
|
|
pr_debug("%s: %s ch%d tx_skb %d tx_idx %d\n", ch->is->name, __func__,
|
|
ch->bch.nr, ch->bch.tx_skb ? ch->bch.tx_skb->len : -1,
|
|
ch->bch.tx_idx);
|
|
if (ch->bch.state == ISDN_P_B_T30_FAX) {
|
|
if (ch->cmd == PCTRL_CMD_FTH) {
|
|
if (test_bit(FLG_LASTDATA, &ch->bch.Flags)) {
|
|
pr_debug("set NMD_DATA\n");
|
|
test_and_set_bit(FLG_NMD_DATA, &ch->bch.Flags);
|
|
}
|
|
} else if (ch->cmd == PCTRL_CMD_FTM) {
|
|
if (test_bit(FLG_DLEETX, &ch->bch.Flags)) {
|
|
test_and_set_bit(FLG_LASTDATA, &ch->bch.Flags);
|
|
test_and_set_bit(FLG_NMD_DATA, &ch->bch.Flags);
|
|
}
|
|
}
|
|
}
|
|
dev_kfree_skb(ch->bch.tx_skb);
|
|
if (get_next_bframe(&ch->bch)) {
|
|
isar_fill_fifo(ch);
|
|
test_and_clear_bit(FLG_TX_EMPTY, &ch->bch.Flags);
|
|
} else if (test_bit(FLG_TX_EMPTY, &ch->bch.Flags)) {
|
|
isar_fill_fifo(ch);
|
|
} else {
|
|
if (test_and_clear_bit(FLG_DLEETX, &ch->bch.Flags)) {
|
|
if (test_and_clear_bit(FLG_LASTDATA,
|
|
&ch->bch.Flags)) {
|
|
if (test_and_clear_bit(FLG_NMD_DATA,
|
|
&ch->bch.Flags)) {
|
|
u8 zd = 0;
|
|
send_mbox(ch->is, SET_DPS(ch->dpath) |
|
|
ISAR_HIS_SDATA, 0x01, 1, &zd);
|
|
}
|
|
test_and_set_bit(FLG_LL_OK, &ch->bch.Flags);
|
|
} else {
|
|
deliver_status(ch, HW_MOD_CONNECT);
|
|
}
|
|
} else if (test_bit(FLG_FILLEMPTY, &ch->bch.Flags)) {
|
|
test_and_set_bit(FLG_TX_EMPTY, &ch->bch.Flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
check_send(struct isar_hw *isar, u8 rdm)
|
|
{
|
|
struct isar_ch *ch;
|
|
|
|
pr_debug("%s: rdm %x\n", isar->name, rdm);
|
|
if (rdm & BSTAT_RDM1) {
|
|
ch = sel_bch_isar(isar, 1);
|
|
if (ch && test_bit(FLG_ACTIVE, &ch->bch.Flags)) {
|
|
if (ch->bch.tx_skb && (ch->bch.tx_skb->len >
|
|
ch->bch.tx_idx))
|
|
isar_fill_fifo(ch);
|
|
else
|
|
send_next(ch);
|
|
}
|
|
}
|
|
if (rdm & BSTAT_RDM2) {
|
|
ch = sel_bch_isar(isar, 2);
|
|
if (ch && test_bit(FLG_ACTIVE, &ch->bch.Flags)) {
|
|
if (ch->bch.tx_skb && (ch->bch.tx_skb->len >
|
|
ch->bch.tx_idx))
|
|
isar_fill_fifo(ch);
|
|
else
|
|
send_next(ch);
|
|
}
|
|
}
|
|
}
|
|
|
|
static const char *dmril[] = {"NO SPEED", "1200/75", "NODEF2", "75/1200", "NODEF4",
|
|
"300", "600", "1200", "2400", "4800", "7200",
|
|
"9600nt", "9600t", "12000", "14400", "WRONG"};
|
|
static const char *dmrim[] = {"NO MOD", "NO DEF", "V32/V32b", "V22", "V21",
|
|
"Bell103", "V23", "Bell202", "V17", "V29", "V27ter"};
|
|
|
|
static void
|
|
isar_pump_status_rsp(struct isar_ch *ch) {
|
|
u8 ril = ch->is->buf[0];
|
|
u8 rim;
|
|
|
|
if (!test_and_clear_bit(ISAR_RATE_REQ, &ch->is->Flags))
|
|
return;
|
|
if (ril > 14) {
|
|
pr_info("%s: wrong pstrsp ril=%d\n", ch->is->name, ril);
|
|
ril = 15;
|
|
}
|
|
switch (ch->is->buf[1]) {
|
|
case 0:
|
|
rim = 0;
|
|
break;
|
|
case 0x20:
|
|
rim = 2;
|
|
break;
|
|
case 0x40:
|
|
rim = 3;
|
|
break;
|
|
case 0x41:
|
|
rim = 4;
|
|
break;
|
|
case 0x51:
|
|
rim = 5;
|
|
break;
|
|
case 0x61:
|
|
rim = 6;
|
|
break;
|
|
case 0x71:
|
|
rim = 7;
|
|
break;
|
|
case 0x82:
|
|
rim = 8;
|
|
break;
|
|
case 0x92:
|
|
rim = 9;
|
|
break;
|
|
case 0xa2:
|
|
rim = 10;
|
|
break;
|
|
default:
|
|
rim = 1;
|
|
break;
|
|
}
|
|
sprintf(ch->conmsg, "%s %s", dmril[ril], dmrim[rim]);
|
|
pr_debug("%s: pump strsp %s\n", ch->is->name, ch->conmsg);
|
|
}
|
|
|
|
static void
|
|
isar_pump_statev_modem(struct isar_ch *ch, u8 devt) {
|
|
u8 dps = SET_DPS(ch->dpath);
|
|
|
|
switch (devt) {
|
|
case PSEV_10MS_TIMER:
|
|
pr_debug("%s: pump stev TIMER\n", ch->is->name);
|
|
break;
|
|
case PSEV_CON_ON:
|
|
pr_debug("%s: pump stev CONNECT\n", ch->is->name);
|
|
deliver_status(ch, HW_MOD_CONNECT);
|
|
break;
|
|
case PSEV_CON_OFF:
|
|
pr_debug("%s: pump stev NO CONNECT\n", ch->is->name);
|
|
send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
|
|
deliver_status(ch, HW_MOD_NOCARR);
|
|
break;
|
|
case PSEV_V24_OFF:
|
|
pr_debug("%s: pump stev V24 OFF\n", ch->is->name);
|
|
break;
|
|
case PSEV_CTS_ON:
|
|
pr_debug("%s: pump stev CTS ON\n", ch->is->name);
|
|
break;
|
|
case PSEV_CTS_OFF:
|
|
pr_debug("%s pump stev CTS OFF\n", ch->is->name);
|
|
break;
|
|
case PSEV_DCD_ON:
|
|
pr_debug("%s: pump stev CARRIER ON\n", ch->is->name);
|
|
test_and_set_bit(ISAR_RATE_REQ, &ch->is->Flags);
|
|
send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
|
|
break;
|
|
case PSEV_DCD_OFF:
|
|
pr_debug("%s: pump stev CARRIER OFF\n", ch->is->name);
|
|
break;
|
|
case PSEV_DSR_ON:
|
|
pr_debug("%s: pump stev DSR ON\n", ch->is->name);
|
|
break;
|
|
case PSEV_DSR_OFF:
|
|
pr_debug("%s: pump stev DSR_OFF\n", ch->is->name);
|
|
break;
|
|
case PSEV_REM_RET:
|
|
pr_debug("%s: pump stev REMOTE RETRAIN\n", ch->is->name);
|
|
break;
|
|
case PSEV_REM_REN:
|
|
pr_debug("%s: pump stev REMOTE RENEGOTIATE\n", ch->is->name);
|
|
break;
|
|
case PSEV_GSTN_CLR:
|
|
pr_debug("%s: pump stev GSTN CLEAR\n", ch->is->name);
|
|
break;
|
|
default:
|
|
pr_info("u%s: unknown pump stev %x\n", ch->is->name, devt);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
isar_pump_statev_fax(struct isar_ch *ch, u8 devt) {
|
|
u8 dps = SET_DPS(ch->dpath);
|
|
u8 p1;
|
|
|
|
switch (devt) {
|
|
case PSEV_10MS_TIMER:
|
|
pr_debug("%s: pump stev TIMER\n", ch->is->name);
|
|
break;
|
|
case PSEV_RSP_READY:
|
|
pr_debug("%s: pump stev RSP_READY\n", ch->is->name);
|
|
ch->state = STFAX_READY;
|
|
deliver_status(ch, HW_MOD_READY);
|
|
#ifdef AUTOCON
|
|
if (test_bit(BC_FLG_ORIG, &ch->bch.Flags))
|
|
isar_pump_cmd(bch, HW_MOD_FRH, 3);
|
|
else
|
|
isar_pump_cmd(bch, HW_MOD_FTH, 3);
|
|
#endif
|
|
break;
|
|
case PSEV_LINE_TX_H:
|
|
if (ch->state == STFAX_LINE) {
|
|
pr_debug("%s: pump stev LINE_TX_H\n", ch->is->name);
|
|
ch->state = STFAX_CONT;
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
|
|
PCTRL_CMD_CONT, 0, NULL);
|
|
} else {
|
|
pr_debug("%s: pump stev LINE_TX_H wrong st %x\n",
|
|
ch->is->name, ch->state);
|
|
}
|
|
break;
|
|
case PSEV_LINE_RX_H:
|
|
if (ch->state == STFAX_LINE) {
|
|
pr_debug("%s: pump stev LINE_RX_H\n", ch->is->name);
|
|
ch->state = STFAX_CONT;
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
|
|
PCTRL_CMD_CONT, 0, NULL);
|
|
} else {
|
|
pr_debug("%s: pump stev LINE_RX_H wrong st %x\n",
|
|
ch->is->name, ch->state);
|
|
}
|
|
break;
|
|
case PSEV_LINE_TX_B:
|
|
if (ch->state == STFAX_LINE) {
|
|
pr_debug("%s: pump stev LINE_TX_B\n", ch->is->name);
|
|
ch->state = STFAX_CONT;
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
|
|
PCTRL_CMD_CONT, 0, NULL);
|
|
} else {
|
|
pr_debug("%s: pump stev LINE_TX_B wrong st %x\n",
|
|
ch->is->name, ch->state);
|
|
}
|
|
break;
|
|
case PSEV_LINE_RX_B:
|
|
if (ch->state == STFAX_LINE) {
|
|
pr_debug("%s: pump stev LINE_RX_B\n", ch->is->name);
|
|
ch->state = STFAX_CONT;
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
|
|
PCTRL_CMD_CONT, 0, NULL);
|
|
} else {
|
|
pr_debug("%s: pump stev LINE_RX_B wrong st %x\n",
|
|
ch->is->name, ch->state);
|
|
}
|
|
break;
|
|
case PSEV_RSP_CONN:
|
|
if (ch->state == STFAX_CONT) {
|
|
pr_debug("%s: pump stev RSP_CONN\n", ch->is->name);
|
|
ch->state = STFAX_ACTIV;
|
|
test_and_set_bit(ISAR_RATE_REQ, &ch->is->Flags);
|
|
send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
|
|
if (ch->cmd == PCTRL_CMD_FTH) {
|
|
int delay = (ch->mod == 3) ? 1000 : 200;
|
|
/* 1s (200 ms) Flags before data */
|
|
if (test_and_set_bit(FLG_FTI_RUN,
|
|
&ch->bch.Flags))
|
|
del_timer(&ch->ftimer);
|
|
ch->ftimer.expires =
|
|
jiffies + ((delay * HZ) / 1000);
|
|
test_and_set_bit(FLG_LL_CONN,
|
|
&ch->bch.Flags);
|
|
add_timer(&ch->ftimer);
|
|
} else {
|
|
deliver_status(ch, HW_MOD_CONNECT);
|
|
}
|
|
} else {
|
|
pr_debug("%s: pump stev RSP_CONN wrong st %x\n",
|
|
ch->is->name, ch->state);
|
|
}
|
|
break;
|
|
case PSEV_FLAGS_DET:
|
|
pr_debug("%s: pump stev FLAGS_DET\n", ch->is->name);
|
|
break;
|
|
case PSEV_RSP_DISC:
|
|
pr_debug("%s: pump stev RSP_DISC state(%d)\n",
|
|
ch->is->name, ch->state);
|
|
if (ch->state == STFAX_ESCAPE) {
|
|
p1 = 5;
|
|
switch (ch->newcmd) {
|
|
case 0:
|
|
ch->state = STFAX_READY;
|
|
break;
|
|
case PCTRL_CMD_FTM:
|
|
p1 = 2;
|
|
fallthrough;
|
|
case PCTRL_CMD_FTH:
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
|
|
PCTRL_CMD_SILON, 1, &p1);
|
|
ch->state = STFAX_SILDET;
|
|
break;
|
|
case PCTRL_CMD_FRH:
|
|
case PCTRL_CMD_FRM:
|
|
ch->mod = ch->newmod;
|
|
p1 = ch->newmod;
|
|
ch->newmod = 0;
|
|
ch->cmd = ch->newcmd;
|
|
ch->newcmd = 0;
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
|
|
ch->cmd, 1, &p1);
|
|
ch->state = STFAX_LINE;
|
|
ch->try_mod = 3;
|
|
break;
|
|
default:
|
|
pr_debug("%s: RSP_DISC unknown newcmd %x\n",
|
|
ch->is->name, ch->newcmd);
|
|
break;
|
|
}
|
|
} else if (ch->state == STFAX_ACTIV) {
|
|
if (test_and_clear_bit(FLG_LL_OK, &ch->bch.Flags))
|
|
deliver_status(ch, HW_MOD_OK);
|
|
else if (ch->cmd == PCTRL_CMD_FRM)
|
|
deliver_status(ch, HW_MOD_NOCARR);
|
|
else
|
|
deliver_status(ch, HW_MOD_FCERROR);
|
|
ch->state = STFAX_READY;
|
|
} else if (ch->state != STFAX_SILDET) {
|
|
/* ignore in STFAX_SILDET */
|
|
ch->state = STFAX_READY;
|
|
deliver_status(ch, HW_MOD_FCERROR);
|
|
}
|
|
break;
|
|
case PSEV_RSP_SILDET:
|
|
pr_debug("%s: pump stev RSP_SILDET\n", ch->is->name);
|
|
if (ch->state == STFAX_SILDET) {
|
|
ch->mod = ch->newmod;
|
|
p1 = ch->newmod;
|
|
ch->newmod = 0;
|
|
ch->cmd = ch->newcmd;
|
|
ch->newcmd = 0;
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
|
|
ch->cmd, 1, &p1);
|
|
ch->state = STFAX_LINE;
|
|
ch->try_mod = 3;
|
|
}
|
|
break;
|
|
case PSEV_RSP_SILOFF:
|
|
pr_debug("%s: pump stev RSP_SILOFF\n", ch->is->name);
|
|
break;
|
|
case PSEV_RSP_FCERR:
|
|
if (ch->state == STFAX_LINE) {
|
|
pr_debug("%s: pump stev RSP_FCERR try %d\n",
|
|
ch->is->name, ch->try_mod);
|
|
if (ch->try_mod--) {
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
|
|
ch->cmd, 1, &ch->mod);
|
|
break;
|
|
}
|
|
}
|
|
pr_debug("%s: pump stev RSP_FCERR\n", ch->is->name);
|
|
ch->state = STFAX_ESCAPE;
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
|
|
0, NULL);
|
|
deliver_status(ch, HW_MOD_FCERROR);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
mISDNisar_irq(struct isar_hw *isar)
|
|
{
|
|
struct isar_ch *ch;
|
|
|
|
get_irq_infos(isar);
|
|
switch (isar->iis & ISAR_IIS_MSCMSD) {
|
|
case ISAR_IIS_RDATA:
|
|
ch = sel_bch_isar(isar, isar->iis >> 6);
|
|
if (ch)
|
|
isar_rcv_frame(ch);
|
|
else {
|
|
pr_debug("%s: ISAR spurious IIS_RDATA %x/%x/%x\n",
|
|
isar->name, isar->iis, isar->cmsb,
|
|
isar->clsb);
|
|
isar->write_reg(isar->hw, ISAR_IIA, 0);
|
|
}
|
|
break;
|
|
case ISAR_IIS_GSTEV:
|
|
isar->write_reg(isar->hw, ISAR_IIA, 0);
|
|
isar->bstat |= isar->cmsb;
|
|
check_send(isar, isar->cmsb);
|
|
break;
|
|
case ISAR_IIS_BSTEV:
|
|
#ifdef ERROR_STATISTIC
|
|
ch = sel_bch_isar(isar, isar->iis >> 6);
|
|
if (ch) {
|
|
if (isar->cmsb == BSTEV_TBO)
|
|
ch->bch.err_tx++;
|
|
if (isar->cmsb == BSTEV_RBO)
|
|
ch->bch.err_rdo++;
|
|
}
|
|
#endif
|
|
pr_debug("%s: Buffer STEV dpath%d msb(%x)\n",
|
|
isar->name, isar->iis >> 6, isar->cmsb);
|
|
isar->write_reg(isar->hw, ISAR_IIA, 0);
|
|
break;
|
|
case ISAR_IIS_PSTEV:
|
|
ch = sel_bch_isar(isar, isar->iis >> 6);
|
|
if (ch) {
|
|
rcv_mbox(isar, NULL);
|
|
if (ch->bch.state == ISDN_P_B_MODEM_ASYNC)
|
|
isar_pump_statev_modem(ch, isar->cmsb);
|
|
else if (ch->bch.state == ISDN_P_B_T30_FAX)
|
|
isar_pump_statev_fax(ch, isar->cmsb);
|
|
else if (ch->bch.state == ISDN_P_B_RAW) {
|
|
int tt;
|
|
tt = isar->cmsb | 0x30;
|
|
if (tt == 0x3e)
|
|
tt = '*';
|
|
else if (tt == 0x3f)
|
|
tt = '#';
|
|
else if (tt > '9')
|
|
tt += 7;
|
|
tt |= DTMF_TONE_VAL;
|
|
_queue_data(&ch->bch.ch, PH_CONTROL_IND,
|
|
MISDN_ID_ANY, sizeof(tt), &tt,
|
|
GFP_ATOMIC);
|
|
} else
|
|
pr_debug("%s: ISAR IIS_PSTEV pm %d sta %x\n",
|
|
isar->name, ch->bch.state,
|
|
isar->cmsb);
|
|
} else {
|
|
pr_debug("%s: ISAR spurious IIS_PSTEV %x/%x/%x\n",
|
|
isar->name, isar->iis, isar->cmsb,
|
|
isar->clsb);
|
|
isar->write_reg(isar->hw, ISAR_IIA, 0);
|
|
}
|
|
break;
|
|
case ISAR_IIS_PSTRSP:
|
|
ch = sel_bch_isar(isar, isar->iis >> 6);
|
|
if (ch) {
|
|
rcv_mbox(isar, NULL);
|
|
isar_pump_status_rsp(ch);
|
|
} else {
|
|
pr_debug("%s: ISAR spurious IIS_PSTRSP %x/%x/%x\n",
|
|
isar->name, isar->iis, isar->cmsb,
|
|
isar->clsb);
|
|
isar->write_reg(isar->hw, ISAR_IIA, 0);
|
|
}
|
|
break;
|
|
case ISAR_IIS_DIAG:
|
|
case ISAR_IIS_BSTRSP:
|
|
case ISAR_IIS_IOM2RSP:
|
|
rcv_mbox(isar, NULL);
|
|
break;
|
|
case ISAR_IIS_INVMSG:
|
|
rcv_mbox(isar, NULL);
|
|
pr_debug("%s: invalid msg his:%x\n", isar->name, isar->cmsb);
|
|
break;
|
|
default:
|
|
rcv_mbox(isar, NULL);
|
|
pr_debug("%s: unhandled msg iis(%x) ctrl(%x/%x)\n",
|
|
isar->name, isar->iis, isar->cmsb, isar->clsb);
|
|
break;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(mISDNisar_irq);
|
|
|
|
static void
|
|
ftimer_handler(struct timer_list *t)
|
|
{
|
|
struct isar_ch *ch = from_timer(ch, t, ftimer);
|
|
|
|
pr_debug("%s: ftimer flags %lx\n", ch->is->name, ch->bch.Flags);
|
|
test_and_clear_bit(FLG_FTI_RUN, &ch->bch.Flags);
|
|
if (test_and_clear_bit(FLG_LL_CONN, &ch->bch.Flags))
|
|
deliver_status(ch, HW_MOD_CONNECT);
|
|
}
|
|
|
|
static void
|
|
setup_pump(struct isar_ch *ch) {
|
|
u8 dps = SET_DPS(ch->dpath);
|
|
u8 ctrl, param[6];
|
|
|
|
switch (ch->bch.state) {
|
|
case ISDN_P_NONE:
|
|
case ISDN_P_B_RAW:
|
|
case ISDN_P_B_HDLC:
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, PMOD_BYPASS, 0, NULL);
|
|
break;
|
|
case ISDN_P_B_L2DTMF:
|
|
if (test_bit(FLG_DTMFSEND, &ch->bch.Flags)) {
|
|
param[0] = 5; /* TOA 5 db */
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG,
|
|
PMOD_DTMF_TRANS, 1, param);
|
|
} else {
|
|
param[0] = 40; /* REL -46 dbm */
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG,
|
|
PMOD_DTMF, 1, param);
|
|
}
|
|
fallthrough;
|
|
case ISDN_P_B_MODEM_ASYNC:
|
|
ctrl = PMOD_DATAMODEM;
|
|
if (test_bit(FLG_ORIGIN, &ch->bch.Flags)) {
|
|
ctrl |= PCTRL_ORIG;
|
|
param[5] = PV32P6_CTN;
|
|
} else {
|
|
param[5] = PV32P6_ATN;
|
|
}
|
|
param[0] = 6; /* 6 db */
|
|
param[1] = PV32P2_V23R | PV32P2_V22A | PV32P2_V22B |
|
|
PV32P2_V22C | PV32P2_V21 | PV32P2_BEL;
|
|
param[2] = PV32P3_AMOD | PV32P3_V32B | PV32P3_V23B;
|
|
param[3] = PV32P4_UT144;
|
|
param[4] = PV32P5_UT144;
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, ctrl, 6, param);
|
|
break;
|
|
case ISDN_P_B_T30_FAX:
|
|
ctrl = PMOD_FAX;
|
|
if (test_bit(FLG_ORIGIN, &ch->bch.Flags)) {
|
|
ctrl |= PCTRL_ORIG;
|
|
param[1] = PFAXP2_CTN;
|
|
} else {
|
|
param[1] = PFAXP2_ATN;
|
|
}
|
|
param[0] = 6; /* 6 db */
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, ctrl, 2, param);
|
|
ch->state = STFAX_NULL;
|
|
ch->newcmd = 0;
|
|
ch->newmod = 0;
|
|
test_and_set_bit(FLG_FTI_RUN, &ch->bch.Flags);
|
|
break;
|
|
}
|
|
udelay(1000);
|
|
send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
|
|
udelay(1000);
|
|
}
|
|
|
|
static void
|
|
setup_sart(struct isar_ch *ch) {
|
|
u8 dps = SET_DPS(ch->dpath);
|
|
u8 ctrl, param[2] = {0, 0};
|
|
|
|
switch (ch->bch.state) {
|
|
case ISDN_P_NONE:
|
|
send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_DISABLE,
|
|
0, NULL);
|
|
break;
|
|
case ISDN_P_B_RAW:
|
|
case ISDN_P_B_L2DTMF:
|
|
send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_BINARY,
|
|
2, param);
|
|
break;
|
|
case ISDN_P_B_HDLC:
|
|
case ISDN_P_B_T30_FAX:
|
|
send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_HDLC,
|
|
1, param);
|
|
break;
|
|
case ISDN_P_B_MODEM_ASYNC:
|
|
ctrl = SMODE_V14 | SCTRL_HDMC_BOTH;
|
|
param[0] = S_P1_CHS_8;
|
|
param[1] = S_P2_BFT_DEF;
|
|
send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, ctrl, 2, param);
|
|
break;
|
|
}
|
|
udelay(1000);
|
|
send_mbox(ch->is, dps | ISAR_HIS_BSTREQ, 0, 0, NULL);
|
|
udelay(1000);
|
|
}
|
|
|
|
static void
|
|
setup_iom2(struct isar_ch *ch) {
|
|
u8 dps = SET_DPS(ch->dpath);
|
|
u8 cmsb = IOM_CTRL_ENA, msg[5] = {IOM_P1_TXD, 0, 0, 0, 0};
|
|
|
|
if (ch->bch.nr == 2) {
|
|
msg[1] = 1;
|
|
msg[3] = 1;
|
|
}
|
|
switch (ch->bch.state) {
|
|
case ISDN_P_NONE:
|
|
cmsb = 0;
|
|
/* dummy slot */
|
|
msg[1] = ch->dpath + 2;
|
|
msg[3] = ch->dpath + 2;
|
|
break;
|
|
case ISDN_P_B_RAW:
|
|
case ISDN_P_B_HDLC:
|
|
break;
|
|
case ISDN_P_B_MODEM_ASYNC:
|
|
case ISDN_P_B_T30_FAX:
|
|
cmsb |= IOM_CTRL_RCV;
|
|
fallthrough;
|
|
case ISDN_P_B_L2DTMF:
|
|
if (test_bit(FLG_DTMFSEND, &ch->bch.Flags))
|
|
cmsb |= IOM_CTRL_RCV;
|
|
cmsb |= IOM_CTRL_ALAW;
|
|
break;
|
|
}
|
|
send_mbox(ch->is, dps | ISAR_HIS_IOM2CFG, cmsb, 5, msg);
|
|
udelay(1000);
|
|
send_mbox(ch->is, dps | ISAR_HIS_IOM2REQ, 0, 0, NULL);
|
|
udelay(1000);
|
|
}
|
|
|
|
static int
|
|
modeisar(struct isar_ch *ch, u32 bprotocol)
|
|
{
|
|
/* Here we are selecting the best datapath for requested protocol */
|
|
if (ch->bch.state == ISDN_P_NONE) { /* New Setup */
|
|
switch (bprotocol) {
|
|
case ISDN_P_NONE: /* init */
|
|
if (!ch->dpath)
|
|
/* no init for dpath 0 */
|
|
return 0;
|
|
test_and_clear_bit(FLG_HDLC, &ch->bch.Flags);
|
|
test_and_clear_bit(FLG_TRANSPARENT, &ch->bch.Flags);
|
|
break;
|
|
case ISDN_P_B_RAW:
|
|
case ISDN_P_B_HDLC:
|
|
/* best is datapath 2 */
|
|
if (!test_and_set_bit(ISAR_DP2_USE, &ch->is->Flags))
|
|
ch->dpath = 2;
|
|
else if (!test_and_set_bit(ISAR_DP1_USE,
|
|
&ch->is->Flags))
|
|
ch->dpath = 1;
|
|
else {
|
|
pr_info("modeisar both paths in use\n");
|
|
return -EBUSY;
|
|
}
|
|
if (bprotocol == ISDN_P_B_HDLC)
|
|
test_and_set_bit(FLG_HDLC, &ch->bch.Flags);
|
|
else
|
|
test_and_set_bit(FLG_TRANSPARENT,
|
|
&ch->bch.Flags);
|
|
break;
|
|
case ISDN_P_B_MODEM_ASYNC:
|
|
case ISDN_P_B_T30_FAX:
|
|
case ISDN_P_B_L2DTMF:
|
|
/* only datapath 1 */
|
|
if (!test_and_set_bit(ISAR_DP1_USE, &ch->is->Flags))
|
|
ch->dpath = 1;
|
|
else {
|
|
pr_info("%s: ISAR modeisar analog functions"
|
|
"only with DP1\n", ch->is->name);
|
|
return -EBUSY;
|
|
}
|
|
break;
|
|
default:
|
|
pr_info("%s: protocol not known %x\n", ch->is->name,
|
|
bprotocol);
|
|
return -ENOPROTOOPT;
|
|
}
|
|
}
|
|
pr_debug("%s: ISAR ch%d dp%d protocol %x->%x\n", ch->is->name,
|
|
ch->bch.nr, ch->dpath, ch->bch.state, bprotocol);
|
|
ch->bch.state = bprotocol;
|
|
setup_pump(ch);
|
|
setup_iom2(ch);
|
|
setup_sart(ch);
|
|
if (ch->bch.state == ISDN_P_NONE) {
|
|
/* Clear resources */
|
|
if (ch->dpath == 1)
|
|
test_and_clear_bit(ISAR_DP1_USE, &ch->is->Flags);
|
|
else if (ch->dpath == 2)
|
|
test_and_clear_bit(ISAR_DP2_USE, &ch->is->Flags);
|
|
ch->dpath = 0;
|
|
ch->is->ctrl(ch->is->hw, HW_DEACT_IND, ch->bch.nr);
|
|
} else
|
|
ch->is->ctrl(ch->is->hw, HW_ACTIVATE_IND, ch->bch.nr);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
isar_pump_cmd(struct isar_ch *ch, u32 cmd, u8 para)
|
|
{
|
|
u8 dps = SET_DPS(ch->dpath);
|
|
u8 ctrl = 0, nom = 0, p1 = 0;
|
|
|
|
pr_debug("%s: isar_pump_cmd %x/%x state(%x)\n",
|
|
ch->is->name, cmd, para, ch->bch.state);
|
|
switch (cmd) {
|
|
case HW_MOD_FTM:
|
|
if (ch->state == STFAX_READY) {
|
|
p1 = para;
|
|
ctrl = PCTRL_CMD_FTM;
|
|
nom = 1;
|
|
ch->state = STFAX_LINE;
|
|
ch->cmd = ctrl;
|
|
ch->mod = para;
|
|
ch->newmod = 0;
|
|
ch->newcmd = 0;
|
|
ch->try_mod = 3;
|
|
} else if ((ch->state == STFAX_ACTIV) &&
|
|
(ch->cmd == PCTRL_CMD_FTM) && (ch->mod == para))
|
|
deliver_status(ch, HW_MOD_CONNECT);
|
|
else {
|
|
ch->newmod = para;
|
|
ch->newcmd = PCTRL_CMD_FTM;
|
|
nom = 0;
|
|
ctrl = PCTRL_CMD_ESC;
|
|
ch->state = STFAX_ESCAPE;
|
|
}
|
|
break;
|
|
case HW_MOD_FTH:
|
|
if (ch->state == STFAX_READY) {
|
|
p1 = para;
|
|
ctrl = PCTRL_CMD_FTH;
|
|
nom = 1;
|
|
ch->state = STFAX_LINE;
|
|
ch->cmd = ctrl;
|
|
ch->mod = para;
|
|
ch->newmod = 0;
|
|
ch->newcmd = 0;
|
|
ch->try_mod = 3;
|
|
} else if ((ch->state == STFAX_ACTIV) &&
|
|
(ch->cmd == PCTRL_CMD_FTH) && (ch->mod == para))
|
|
deliver_status(ch, HW_MOD_CONNECT);
|
|
else {
|
|
ch->newmod = para;
|
|
ch->newcmd = PCTRL_CMD_FTH;
|
|
nom = 0;
|
|
ctrl = PCTRL_CMD_ESC;
|
|
ch->state = STFAX_ESCAPE;
|
|
}
|
|
break;
|
|
case HW_MOD_FRM:
|
|
if (ch->state == STFAX_READY) {
|
|
p1 = para;
|
|
ctrl = PCTRL_CMD_FRM;
|
|
nom = 1;
|
|
ch->state = STFAX_LINE;
|
|
ch->cmd = ctrl;
|
|
ch->mod = para;
|
|
ch->newmod = 0;
|
|
ch->newcmd = 0;
|
|
ch->try_mod = 3;
|
|
} else if ((ch->state == STFAX_ACTIV) &&
|
|
(ch->cmd == PCTRL_CMD_FRM) && (ch->mod == para))
|
|
deliver_status(ch, HW_MOD_CONNECT);
|
|
else {
|
|
ch->newmod = para;
|
|
ch->newcmd = PCTRL_CMD_FRM;
|
|
nom = 0;
|
|
ctrl = PCTRL_CMD_ESC;
|
|
ch->state = STFAX_ESCAPE;
|
|
}
|
|
break;
|
|
case HW_MOD_FRH:
|
|
if (ch->state == STFAX_READY) {
|
|
p1 = para;
|
|
ctrl = PCTRL_CMD_FRH;
|
|
nom = 1;
|
|
ch->state = STFAX_LINE;
|
|
ch->cmd = ctrl;
|
|
ch->mod = para;
|
|
ch->newmod = 0;
|
|
ch->newcmd = 0;
|
|
ch->try_mod = 3;
|
|
} else if ((ch->state == STFAX_ACTIV) &&
|
|
(ch->cmd == PCTRL_CMD_FRH) && (ch->mod == para))
|
|
deliver_status(ch, HW_MOD_CONNECT);
|
|
else {
|
|
ch->newmod = para;
|
|
ch->newcmd = PCTRL_CMD_FRH;
|
|
nom = 0;
|
|
ctrl = PCTRL_CMD_ESC;
|
|
ch->state = STFAX_ESCAPE;
|
|
}
|
|
break;
|
|
case PCTRL_CMD_TDTMF:
|
|
p1 = para;
|
|
nom = 1;
|
|
ctrl = PCTRL_CMD_TDTMF;
|
|
break;
|
|
}
|
|
if (ctrl)
|
|
send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL, ctrl, nom, &p1);
|
|
}
|
|
|
|
static void
|
|
isar_setup(struct isar_hw *isar)
|
|
{
|
|
u8 msg;
|
|
int i;
|
|
|
|
/* Dpath 1, 2 */
|
|
msg = 61;
|
|
for (i = 0; i < 2; i++) {
|
|
/* Buffer Config */
|
|
send_mbox(isar, (i ? ISAR_HIS_DPS2 : ISAR_HIS_DPS1) |
|
|
ISAR_HIS_P12CFG, 4, 1, &msg);
|
|
isar->ch[i].mml = msg;
|
|
isar->ch[i].bch.state = 0;
|
|
isar->ch[i].dpath = i + 1;
|
|
modeisar(&isar->ch[i], ISDN_P_NONE);
|
|
}
|
|
}
|
|
|
|
static int
|
|
isar_l2l1(struct mISDNchannel *ch, struct sk_buff *skb)
|
|
{
|
|
struct bchannel *bch = container_of(ch, struct bchannel, ch);
|
|
struct isar_ch *ich = container_of(bch, struct isar_ch, bch);
|
|
int ret = -EINVAL;
|
|
struct mISDNhead *hh = mISDN_HEAD_P(skb);
|
|
u32 id, *val;
|
|
u_long flags;
|
|
|
|
switch (hh->prim) {
|
|
case PH_DATA_REQ:
|
|
spin_lock_irqsave(ich->is->hwlock, flags);
|
|
ret = bchannel_senddata(bch, skb);
|
|
if (ret > 0) { /* direct TX */
|
|
ret = 0;
|
|
isar_fill_fifo(ich);
|
|
}
|
|
spin_unlock_irqrestore(ich->is->hwlock, flags);
|
|
return ret;
|
|
case PH_ACTIVATE_REQ:
|
|
spin_lock_irqsave(ich->is->hwlock, flags);
|
|
if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
|
|
ret = modeisar(ich, ch->protocol);
|
|
else
|
|
ret = 0;
|
|
spin_unlock_irqrestore(ich->is->hwlock, flags);
|
|
if (!ret)
|
|
_queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
|
|
NULL, GFP_KERNEL);
|
|
break;
|
|
case PH_DEACTIVATE_REQ:
|
|
spin_lock_irqsave(ich->is->hwlock, flags);
|
|
mISDN_clear_bchannel(bch);
|
|
modeisar(ich, ISDN_P_NONE);
|
|
spin_unlock_irqrestore(ich->is->hwlock, flags);
|
|
_queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
|
|
NULL, GFP_KERNEL);
|
|
ret = 0;
|
|
break;
|
|
case PH_CONTROL_REQ:
|
|
val = (u32 *)skb->data;
|
|
pr_debug("%s: PH_CONTROL | REQUEST %x/%x\n", ich->is->name,
|
|
hh->id, *val);
|
|
if ((hh->id == 0) && ((*val & ~DTMF_TONE_MASK) ==
|
|
DTMF_TONE_VAL)) {
|
|
if (bch->state == ISDN_P_B_L2DTMF) {
|
|
char tt = *val & DTMF_TONE_MASK;
|
|
|
|
if (tt == '*')
|
|
tt = 0x1e;
|
|
else if (tt == '#')
|
|
tt = 0x1f;
|
|
else if (tt > '9')
|
|
tt -= 7;
|
|
tt &= 0x1f;
|
|
spin_lock_irqsave(ich->is->hwlock, flags);
|
|
isar_pump_cmd(ich, PCTRL_CMD_TDTMF, tt);
|
|
spin_unlock_irqrestore(ich->is->hwlock, flags);
|
|
} else {
|
|
pr_info("%s: DTMF send wrong protocol %x\n",
|
|
__func__, bch->state);
|
|
return -EINVAL;
|
|
}
|
|
} else if ((hh->id == HW_MOD_FRM) || (hh->id == HW_MOD_FRH) ||
|
|
(hh->id == HW_MOD_FTM) || (hh->id == HW_MOD_FTH)) {
|
|
for (id = 0; id < FAXMODCNT; id++)
|
|
if (faxmodulation[id] == *val)
|
|
break;
|
|
if ((FAXMODCNT > id) &&
|
|
test_bit(FLG_INITIALIZED, &bch->Flags)) {
|
|
pr_debug("%s: isar: new mod\n", ich->is->name);
|
|
isar_pump_cmd(ich, hh->id, *val);
|
|
ret = 0;
|
|
} else {
|
|
pr_info("%s: wrong modulation\n",
|
|
ich->is->name);
|
|
ret = -EINVAL;
|
|
}
|
|
} else if (hh->id == HW_MOD_LASTDATA)
|
|
test_and_set_bit(FLG_DLEETX, &bch->Flags);
|
|
else {
|
|
pr_info("%s: unknown PH_CONTROL_REQ %x\n",
|
|
ich->is->name, hh->id);
|
|
ret = -EINVAL;
|
|
}
|
|
fallthrough;
|
|
default:
|
|
pr_info("%s: %s unknown prim(%x,%x)\n",
|
|
ich->is->name, __func__, hh->prim, hh->id);
|
|
ret = -EINVAL;
|
|
}
|
|
if (!ret)
|
|
dev_kfree_skb(skb);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
|
|
{
|
|
return mISDN_ctrl_bchannel(bch, cq);
|
|
}
|
|
|
|
static int
|
|
isar_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
|
|
{
|
|
struct bchannel *bch = container_of(ch, struct bchannel, ch);
|
|
struct isar_ch *ich = container_of(bch, struct isar_ch, bch);
|
|
int ret = -EINVAL;
|
|
u_long flags;
|
|
|
|
pr_debug("%s: %s cmd:%x %p\n", ich->is->name, __func__, cmd, arg);
|
|
switch (cmd) {
|
|
case CLOSE_CHANNEL:
|
|
test_and_clear_bit(FLG_OPEN, &bch->Flags);
|
|
cancel_work_sync(&bch->workq);
|
|
spin_lock_irqsave(ich->is->hwlock, flags);
|
|
mISDN_clear_bchannel(bch);
|
|
modeisar(ich, ISDN_P_NONE);
|
|
spin_unlock_irqrestore(ich->is->hwlock, flags);
|
|
ch->protocol = ISDN_P_NONE;
|
|
ch->peer = NULL;
|
|
module_put(ich->is->owner);
|
|
ret = 0;
|
|
break;
|
|
case CONTROL_CHANNEL:
|
|
ret = channel_bctrl(bch, arg);
|
|
break;
|
|
default:
|
|
pr_info("%s: %s unknown prim(%x)\n",
|
|
ich->is->name, __func__, cmd);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
free_isar(struct isar_hw *isar)
|
|
{
|
|
modeisar(&isar->ch[0], ISDN_P_NONE);
|
|
modeisar(&isar->ch[1], ISDN_P_NONE);
|
|
del_timer(&isar->ch[0].ftimer);
|
|
del_timer(&isar->ch[1].ftimer);
|
|
test_and_clear_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags);
|
|
test_and_clear_bit(FLG_INITIALIZED, &isar->ch[1].bch.Flags);
|
|
}
|
|
|
|
static int
|
|
init_isar(struct isar_hw *isar)
|
|
{
|
|
int cnt = 3;
|
|
|
|
while (cnt--) {
|
|
isar->version = ISARVersion(isar);
|
|
if (isar->ch[0].bch.debug & DEBUG_HW)
|
|
pr_notice("%s: Testing version %d (%d time)\n",
|
|
isar->name, isar->version, 3 - cnt);
|
|
if (isar->version == 1)
|
|
break;
|
|
isar->ctrl(isar->hw, HW_RESET_REQ, 0);
|
|
}
|
|
if (isar->version != 1)
|
|
return -EINVAL;
|
|
timer_setup(&isar->ch[0].ftimer, ftimer_handler, 0);
|
|
test_and_set_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags);
|
|
timer_setup(&isar->ch[1].ftimer, ftimer_handler, 0);
|
|
test_and_set_bit(FLG_INITIALIZED, &isar->ch[1].bch.Flags);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
isar_open(struct isar_hw *isar, struct channel_req *rq)
|
|
{
|
|
struct bchannel *bch;
|
|
|
|
if (rq->adr.channel == 0 || rq->adr.channel > 2)
|
|
return -EINVAL;
|
|
if (rq->protocol == ISDN_P_NONE)
|
|
return -EINVAL;
|
|
bch = &isar->ch[rq->adr.channel - 1].bch;
|
|
if (test_and_set_bit(FLG_OPEN, &bch->Flags))
|
|
return -EBUSY; /* b-channel can be only open once */
|
|
bch->ch.protocol = rq->protocol;
|
|
rq->ch = &bch->ch;
|
|
return 0;
|
|
}
|
|
|
|
u32
|
|
mISDNisar_init(struct isar_hw *isar, void *hw)
|
|
{
|
|
u32 ret, i;
|
|
|
|
isar->hw = hw;
|
|
for (i = 0; i < 2; i++) {
|
|
isar->ch[i].bch.nr = i + 1;
|
|
mISDN_initbchannel(&isar->ch[i].bch, MAX_DATA_MEM, 32);
|
|
isar->ch[i].bch.ch.nr = i + 1;
|
|
isar->ch[i].bch.ch.send = &isar_l2l1;
|
|
isar->ch[i].bch.ch.ctrl = isar_bctrl;
|
|
isar->ch[i].bch.hw = hw;
|
|
isar->ch[i].is = isar;
|
|
}
|
|
|
|
isar->init = &init_isar;
|
|
isar->release = &free_isar;
|
|
isar->firmware = &load_firmware;
|
|
isar->open = &isar_open;
|
|
|
|
ret = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
|
|
(1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)) |
|
|
(1 << (ISDN_P_B_L2DTMF & ISDN_P_B_MASK)) |
|
|
(1 << (ISDN_P_B_MODEM_ASYNC & ISDN_P_B_MASK)) |
|
|
(1 << (ISDN_P_B_T30_FAX & ISDN_P_B_MASK));
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(mISDNisar_init);
|
|
|
|
static int __init isar_mod_init(void)
|
|
{
|
|
pr_notice("mISDN: ISAR driver Rev. %s\n", ISAR_REV);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit isar_mod_cleanup(void)
|
|
{
|
|
pr_notice("mISDN: ISAR module unloaded\n");
|
|
}
|
|
module_init(isar_mod_init);
|
|
module_exit(isar_mod_cleanup);
|