| /* |
| * mISDNisar.c ISAR (Siemens PSB 7110) specific functions |
| * |
| * Author Karsten Keil (keil@isdn4linux.de) |
| * |
| * Copyright 2009 by Karsten Keil <keil@isdn4linux.de> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| */ |
| |
| /* define this to enable static debug messages, if you kernel supports |
| * dynamic debugging, you should use debugfs for this |
| */ |
| /* #define DEBUG */ |
| |
| #include <linux/gfp.h> |
| #include <linux/delay.h> |
| #include <linux/vmalloc.h> |
| #include <linux/mISDNhw.h> |
| #include <linux/module.h> |
| #include "isar.h" |
| |
| #define ISAR_REV "2.1" |
| |
| MODULE_AUTHOR("Karsten Keil"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_VERSION(ISAR_REV); |
| |
| #define DEBUG_HW_FIRMWARE_FIFO 0x10000 |
| |
| static const u8 faxmodulation_s[] = "3,24,48,72,73,74,96,97,98,121,122,145,146"; |
| static const u8 faxmodulation[] = {3, 24, 48, 72, 73, 74, 96, 97, 98, 121, |
| 122, 145, 146}; |
| #define FAXMODCNT 13 |
| |
| static void isar_setup(struct isar_hw *); |
| |
| static inline int |
| waitforHIA(struct isar_hw *isar, int timeout) |
| { |
| int t = timeout; |
| u8 val = isar->read_reg(isar->hw, ISAR_HIA); |
| |
| while ((val & 1) && t) { |
| udelay(1); |
| t--; |
| val = isar->read_reg(isar->hw, ISAR_HIA); |
| } |
| pr_debug("%s: HIA after %dus\n", isar->name, timeout - t); |
| return timeout; |
| } |
| |
| /* |
| * send msg to ISAR mailbox |
| * if msg is NULL use isar->buf |
| */ |
| static int |
| send_mbox(struct isar_hw *isar, u8 his, u8 creg, u8 len, u8 *msg) |
| { |
| if (!waitforHIA(isar, 1000)) |
| return 0; |
| pr_debug("send_mbox(%02x,%02x,%d)\n", his, creg, len); |
| isar->write_reg(isar->hw, ISAR_CTRL_H, creg); |
| isar->write_reg(isar->hw, ISAR_CTRL_L, len); |
| isar->write_reg(isar->hw, ISAR_WADR, 0); |
| if (!msg) |
| msg = isar->buf; |
| if (msg && len) { |
| isar->write_fifo(isar->hw, ISAR_MBOX, msg, len); |
| if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) { |
| int l = 0; |
| |
| while (l < (int)len) { |
| hex_dump_to_buffer(msg + l, len - l, 32, 1, |
| isar->log, 256, 1); |
| pr_debug("%s: %s %02x: %s\n", isar->name, |
| __func__, l, isar->log); |
| l += 32; |
| } |
| } |
| } |
| isar->write_reg(isar->hw, ISAR_HIS, his); |
| waitforHIA(isar, 1000); |
| return 1; |
| } |
| |
| /* |
| * receive message from ISAR mailbox |
| * if msg is NULL use isar->buf |
| */ |
| static void |
| rcv_mbox(struct isar_hw *isar, u8 *msg) |
| { |
| if (!msg) |
| msg = isar->buf; |
| isar->write_reg(isar->hw, ISAR_RADR, 0); |
| if (msg && isar->clsb) { |
| isar->read_fifo(isar->hw, ISAR_MBOX, msg, isar->clsb); |
| if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) { |
| int l = 0; |
| |
| while (l < (int)isar->clsb) { |
| hex_dump_to_buffer(msg + l, isar->clsb - l, 32, |
| 1, isar->log, 256, 1); |
| pr_debug("%s: %s %02x: %s\n", isar->name, |
| __func__, l, isar->log); |
| l += 32; |
| } |
| } |
| } |
| isar->write_reg(isar->hw, ISAR_IIA, 0); |
| } |
| |
| static inline void |
| get_irq_infos(struct isar_hw *isar) |
| { |
| isar->iis = isar->read_reg(isar->hw, ISAR_IIS); |
| isar->cmsb = isar->read_reg(isar->hw, ISAR_CTRL_H); |
| isar->clsb = isar->read_reg(isar->hw, ISAR_CTRL_L); |
| pr_debug("%s: rcv_mbox(%02x,%02x,%d)\n", isar->name, |
| isar->iis, isar->cmsb, isar->clsb); |
| } |
| |
| /* |
| * poll answer message from ISAR mailbox |
| * should be used only with ISAR IRQs disabled before DSP was started |
| * |
| */ |
| static int |
| poll_mbox(struct isar_hw *isar, int maxdelay) |
| { |
| int t = maxdelay; |
| u8 irq; |
| |
| irq = isar->read_reg(isar->hw, ISAR_IRQBIT); |
| while (t && !(irq & ISAR_IRQSTA)) { |
| udelay(1); |
| t--; |
| } |
| if (t) { |
| get_irq_infos(isar); |
| rcv_mbox(isar, NULL); |
| } |
| pr_debug("%s: pulled %d bytes after %d us\n", |
| isar->name, isar->clsb, maxdelay - t); |
| return t; |
| } |
| |
| static int |
| ISARVersion(struct isar_hw *isar) |
| { |
| int ver; |
| |
| /* disable ISAR IRQ */ |
| isar->write_reg(isar->hw, ISAR_IRQBIT, 0); |
| isar->buf[0] = ISAR_MSG_HWVER; |
| isar->buf[1] = 0; |
| isar->buf[2] = 1; |
| if (!send_mbox(isar, ISAR_HIS_VNR, 0, 3, NULL)) |
| return -1; |
| if (!poll_mbox(isar, 1000)) |
| return -2; |
| if (isar->iis == ISAR_IIS_VNR) { |
| if (isar->clsb == 1) { |
| ver = isar->buf[0] & 0xf; |
| return ver; |
| } |
| return -3; |
| } |
| return -4; |
| } |
| |
| static int |
| load_firmware(struct isar_hw *isar, const u8 *buf, int size) |
| { |
| u32 saved_debug = isar->ch[0].bch.debug; |
| int ret, cnt; |
| u8 nom, noc; |
| u16 left, val, *sp = (u16 *)buf; |
| u8 *mp; |
| u_long flags; |
| |
| struct { |
| u16 sadr; |
| u16 len; |
| u16 d_key; |
| } blk_head; |
| |
| if (1 != isar->version) { |
| pr_err("%s: ISAR wrong version %d firmware download aborted\n", |
| isar->name, isar->version); |
| return -EINVAL; |
| } |
| if (!(saved_debug & DEBUG_HW_FIRMWARE_FIFO)) |
| isar->ch[0].bch.debug &= ~DEBUG_HW_BFIFO; |
| pr_debug("%s: load firmware %d words (%d bytes)\n", |
| isar->name, size / 2, size); |
| cnt = 0; |
| size /= 2; |
| /* disable ISAR IRQ */ |
| spin_lock_irqsave(isar->hwlock, flags); |
| isar->write_reg(isar->hw, ISAR_IRQBIT, 0); |
| spin_unlock_irqrestore(isar->hwlock, flags); |
| while (cnt < size) { |
| blk_head.sadr = le16_to_cpu(*sp++); |
| blk_head.len = le16_to_cpu(*sp++); |
| blk_head.d_key = le16_to_cpu(*sp++); |
| cnt += 3; |
| pr_debug("ISAR firmware block (%#x,%d,%#x)\n", |
| blk_head.sadr, blk_head.len, blk_head.d_key & 0xff); |
| left = blk_head.len; |
| if (cnt + left > size) { |
| pr_info("%s: firmware error have %d need %d words\n", |
| isar->name, size, cnt + left); |
| ret = -EINVAL; |
| goto reterrflg; |
| } |
| spin_lock_irqsave(isar->hwlock, flags); |
| if (!send_mbox(isar, ISAR_HIS_DKEY, blk_head.d_key & 0xff, |
| 0, NULL)) { |
| pr_info("ISAR send_mbox dkey failed\n"); |
| ret = -ETIME; |
| goto reterror; |
| } |
| if (!poll_mbox(isar, 1000)) { |
| pr_warning("ISAR poll_mbox dkey failed\n"); |
| ret = -ETIME; |
| goto reterror; |
| } |
| spin_unlock_irqrestore(isar->hwlock, flags); |
| if ((isar->iis != ISAR_IIS_DKEY) || isar->cmsb || isar->clsb) { |
| pr_info("ISAR wrong dkey response (%x,%x,%x)\n", |
| isar->iis, isar->cmsb, isar->clsb); |
| ret = 1; |
| goto reterrflg; |
| } |
| while (left > 0) { |
| if (left > 126) |
| noc = 126; |
| else |
| noc = left; |
| nom = (2 * noc) + 3; |
| mp = isar->buf; |
| /* the ISAR is big endian */ |
| *mp++ = blk_head.sadr >> 8; |
| *mp++ = blk_head.sadr & 0xFF; |
| left -= noc; |
| cnt += noc; |
| *mp++ = noc; |
| pr_debug("%s: load %3d words at %04x\n", isar->name, |
| noc, blk_head.sadr); |
| blk_head.sadr += noc; |
| while (noc) { |
| val = le16_to_cpu(*sp++); |
| *mp++ = val >> 8; |
| *mp++ = val & 0xFF; |
| noc--; |
| } |
| spin_lock_irqsave(isar->hwlock, flags); |
| if (!send_mbox(isar, ISAR_HIS_FIRM, 0, nom, NULL)) { |
| pr_info("ISAR send_mbox prog failed\n"); |
| ret = -ETIME; |
| goto reterror; |
| } |
| if (!poll_mbox(isar, 1000)) { |
| pr_info("ISAR poll_mbox prog failed\n"); |
| ret = -ETIME; |
| goto reterror; |
| } |
| spin_unlock_irqrestore(isar->hwlock, flags); |
| if ((isar->iis != ISAR_IIS_FIRM) || |
| isar->cmsb || isar->clsb) { |
| pr_info("ISAR wrong prog response (%x,%x,%x)\n", |
| isar->iis, isar->cmsb, isar->clsb); |
| ret = -EIO; |
| goto reterrflg; |
| } |
| } |
| pr_debug("%s: ISAR firmware block %d words loaded\n", |
| isar->name, blk_head.len); |
| } |
| isar->ch[0].bch.debug = saved_debug; |
| /* 10ms delay */ |
| cnt = 10; |
| while (cnt--) |
| mdelay(1); |
| isar->buf[0] = 0xff; |
| isar->buf[1] = 0xfe; |
| isar->bstat = 0; |
| spin_lock_irqsave(isar->hwlock, flags); |
| if (!send_mbox(isar, ISAR_HIS_STDSP, 0, 2, NULL)) { |
| pr_info("ISAR send_mbox start dsp failed\n"); |
| ret = -ETIME; |
| goto reterror; |
| } |
| if (!poll_mbox(isar, 1000)) { |
| pr_info("ISAR poll_mbox start dsp failed\n"); |
| ret = -ETIME; |
| goto reterror; |
| } |
| if ((isar->iis != ISAR_IIS_STDSP) || isar->cmsb || isar->clsb) { |
| pr_info("ISAR wrong start dsp response (%x,%x,%x)\n", |
| isar->iis, isar->cmsb, isar->clsb); |
| ret = -EIO; |
| goto reterror; |
| } else |
| pr_debug("%s: ISAR start dsp success\n", isar->name); |
| |
| /* NORMAL mode entered */ |
| /* Enable IRQs of ISAR */ |
| isar->write_reg(isar->hw, ISAR_IRQBIT, ISAR_IRQSTA); |
| spin_unlock_irqrestore(isar->hwlock, flags); |
| cnt = 1000; /* max 1s */ |
| while ((!isar->bstat) && cnt) { |
| mdelay(1); |
| cnt--; |
| } |
| if (!cnt) { |
| pr_info("ISAR no general status event received\n"); |
| ret = -ETIME; |
| goto reterrflg; |
| } else |
| pr_debug("%s: ISAR general status event %x\n", |
| isar->name, isar->bstat); |
| /* 10ms delay */ |
| cnt = 10; |
| while (cnt--) |
| mdelay(1); |
| isar->iis = 0; |
| spin_lock_irqsave(isar->hwlock, flags); |
| if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_STST, 0, NULL)) { |
| pr_info("ISAR send_mbox self tst failed\n"); |
| ret = -ETIME; |
| goto reterror; |
| } |
| spin_unlock_irqrestore(isar->hwlock, flags); |
| cnt = 10000; /* max 100 ms */ |
| while ((isar->iis != ISAR_IIS_DIAG) && cnt) { |
| udelay(10); |
| cnt--; |
| } |
| mdelay(1); |
| if (!cnt) { |
| pr_info("ISAR no self tst response\n"); |
| ret = -ETIME; |
| goto reterrflg; |
| } |
| if ((isar->cmsb == ISAR_CTRL_STST) && (isar->clsb == 1) |
| && (isar->buf[0] == 0)) |
| pr_debug("%s: ISAR selftest OK\n", isar->name); |
| else { |
| pr_info("ISAR selftest not OK %x/%x/%x\n", |
| isar->cmsb, isar->clsb, isar->buf[0]); |
| ret = -EIO; |
| goto reterrflg; |
| } |
| spin_lock_irqsave(isar->hwlock, flags); |
| isar->iis = 0; |
| if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_SWVER, 0, NULL)) { |
| pr_info("ISAR RQST SVN failed\n"); |
| ret = -ETIME; |
| goto reterror; |
| } |
| spin_unlock_irqrestore(isar->hwlock, flags); |
| cnt = 30000; /* max 300 ms */ |
| while ((isar->iis != ISAR_IIS_DIAG) && cnt) { |
| udelay(10); |
| cnt--; |
| } |
| mdelay(1); |
| if (!cnt) { |
| pr_info("ISAR no SVN response\n"); |
| ret = -ETIME; |
| goto reterrflg; |
| } else { |
| if ((isar->cmsb == ISAR_CTRL_SWVER) && (isar->clsb == 1)) { |
| pr_notice("%s: ISAR software version %#x\n", |
| isar->name, isar->buf[0]); |
| } else { |
| pr_info("%s: ISAR wrong swver response (%x,%x)" |
| " cnt(%d)\n", isar->name, isar->cmsb, |
| isar->clsb, cnt); |
| ret = -EIO; |
| goto reterrflg; |
| } |
| } |
| spin_lock_irqsave(isar->hwlock, flags); |
| isar_setup(isar); |
| spin_unlock_irqrestore(isar->hwlock, flags); |
| ret = 0; |
| reterrflg: |
| spin_lock_irqsave(isar->hwlock, flags); |
| reterror: |
| isar->ch[0].bch.debug = saved_debug; |
| if (ret) |
| /* disable ISAR IRQ */ |
| isar->write_reg(isar->hw, ISAR_IRQBIT, 0); |
| spin_unlock_irqrestore(isar->hwlock, flags); |
| return ret; |
| } |
| |
| static inline void |
| deliver_status(struct isar_ch *ch, int status) |
| { |
| pr_debug("%s: HL->LL FAXIND %x\n", ch->is->name, status); |
| _queue_data(&ch->bch.ch, PH_CONTROL_IND, status, 0, NULL, GFP_ATOMIC); |
| } |
| |
| static inline void |
| isar_rcv_frame(struct isar_ch *ch) |
| { |
| u8 *ptr; |
| |
| if (!ch->is->clsb) { |
| pr_debug("%s; ISAR zero len frame\n", ch->is->name); |
| ch->is->write_reg(ch->is->hw, ISAR_IIA, 0); |
| return; |
| } |
| switch (ch->bch.state) { |
| case ISDN_P_NONE: |
| pr_debug("%s: ISAR protocol 0 spurious IIS_RDATA %x/%x/%x\n", |
| ch->is->name, ch->is->iis, ch->is->cmsb, ch->is->clsb); |
| ch->is->write_reg(ch->is->hw, ISAR_IIA, 0); |
| break; |
| case ISDN_P_B_RAW: |
| case ISDN_P_B_L2DTMF: |
| case ISDN_P_B_MODEM_ASYNC: |
| 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", |
| ch->is->name); |
| ch->is->write_reg(ch->is->hw, ISAR_IIA, 0); |
| break; |
| } |
| } |
| rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb)); |
| recv_Bchannel(&ch->bch, 0); |
| break; |
| case ISDN_P_B_HDLC: |
| 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", |
| ch->is->name); |
| ch->is->write_reg(ch->is->hw, ISAR_IIA, 0); |
| break; |
| } |
| } |
| if ((ch->bch.rx_skb->len + ch->is->clsb) > |
| (ch->bch.maxlen + 2)) { |
| pr_debug("%s: incoming packet too large\n", |
| ch->is->name); |
| ch->is->write_reg(ch->is->hw, ISAR_IIA, 0); |
| skb_trim(ch->bch.rx_skb, 0); |
| break; |
| } |
| 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) |
| 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); |
| } |
| 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); |
| 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); |
| } |
| 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 %p tx_idx %d\n", |
| ch->is->name, ch->bch.nr, ch->bch.tx_skb, ch->bch.tx_idx); |
| if (!ch->bch.tx_skb) |
| return; |
| count = ch->bch.tx_skb->len - ch->bch.tx_idx; |
| if (count <= 0) |
| return; |
| if (!(ch->is->bstat & |
| (ch->dpath == 1 ? BSTAT_RDM1 : BSTAT_RDM2))) |
| 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 %p tx_idx %d\n", |
| ch->is->name, __func__, ch->bch.nr, |
| ch->bch.tx_skb, 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); |
| } |
| } |
| } |
| if (ch->bch.tx_skb) { |
| /* send confirm, on trans, free on hdlc. */ |
| if (test_bit(FLG_TRANSPARENT, &ch->bch.Flags)) |
| confirm_Bsend(&ch->bch); |
| dev_kfree_skb(ch->bch.tx_skb); |
| } |
| if (get_next_bframe(&ch->bch)) |
| 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); |
| } |
| } |
| } |
| } |
| |
| 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); |
| } |
| } |
| } |
| |
| const char *dmril[] = {"NO SPEED", "1200/75", "NODEF2", "75/1200", "NODEF4", |
| "300", "600", "1200", "2400", "4800", "7200", |
| "9600nt", "9600t", "12000", "14400", "WRONG"}; |
| 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; |
| 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(unsigned long data) |
| { |
| struct isar_ch *ch = (struct isar_ch *)data; |
| |
| 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); |
| } |
| 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; |
| 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 pathes 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 */ |
| id = hh->id; /* skb can be freed */ |
| ret = 0; |
| isar_fill_fifo(ich); |
| spin_unlock_irqrestore(ich->is->hwlock, flags); |
| if (!test_bit(FLG_TRANSPARENT, &bch->Flags)) |
| queue_ch_frame(ch, PH_DATA_CNF, id, NULL); |
| } else |
| 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; |
| } |
| 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) |
| { |
| int ret = 0; |
| |
| switch (cq->op) { |
| case MISDN_CTRL_GETOP: |
| cq->op = 0; |
| break; |
| /* Nothing implemented yet */ |
| case MISDN_CTRL_FILL_EMPTY: |
| default: |
| pr_info("%s: unknown Op %x\n", __func__, cq->op); |
| ret = -EINVAL; |
| break; |
| } |
| return ret; |
| } |
| |
| 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); |
| if (test_bit(FLG_ACTIVE, &bch->Flags)) { |
| spin_lock_irqsave(ich->is->hwlock, flags); |
| mISDN_freebchannel(bch); |
| modeisar(ich, ISDN_P_NONE); |
| spin_unlock_irqrestore(ich->is->hwlock, flags); |
| } else { |
| skb_queue_purge(&bch->rqueue); |
| bch->rcount = 0; |
| } |
| 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; |
| isar->ch[0].ftimer.function = &ftimer_handler; |
| isar->ch[0].ftimer.data = (long)&isar->ch[0]; |
| init_timer(&isar->ch[0].ftimer); |
| test_and_set_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags); |
| isar->ch[1].ftimer.function = &ftimer_handler; |
| isar->ch[1].ftimer.data = (long)&isar->ch[1]; |
| init_timer(&isar->ch[1].ftimer); |
| 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 > 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 */ |
| test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags); |
| 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); |
| 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); |