1 // SPDX-License-Identifier: GPL-2.0-only
3 * mISDNisar.c ISAR (Siemens PSB 7110) specific functions
5 * Author Karsten Keil (keil@isdn4linux.de)
7 * Copyright 2009 by Karsten Keil <keil@isdn4linux.de>
10 /* define this to enable static debug messages, if you kernel supports
11 * dynamic debugging, you should use debugfs for this
15 #include <linux/gfp.h>
16 #include <linux/delay.h>
17 #include <linux/vmalloc.h>
18 #include <linux/mISDNhw.h>
19 #include <linux/module.h>
22 #define ISAR_REV "2.1"
24 MODULE_AUTHOR("Karsten Keil");
25 MODULE_LICENSE("GPL v2");
26 MODULE_VERSION(ISAR_REV);
28 #define DEBUG_HW_FIRMWARE_FIFO 0x10000
30 static const u8 faxmodulation_s[] = "3,24,48,72,73,74,96,97,98,121,122,145,146";
31 static const u8 faxmodulation[] = {3, 24, 48, 72, 73, 74, 96, 97, 98, 121,
35 static void isar_setup(struct isar_hw *);
38 waitforHIA(struct isar_hw *isar, int timeout)
41 u8 val = isar->read_reg(isar->hw, ISAR_HIA);
43 while ((val & 1) && t) {
46 val = isar->read_reg(isar->hw, ISAR_HIA);
48 pr_debug("%s: HIA after %dus\n", isar->name, timeout - t);
53 * send msg to ISAR mailbox
54 * if msg is NULL use isar->buf
57 send_mbox(struct isar_hw *isar, u8 his, u8 creg, u8 len, u8 *msg)
59 if (!waitforHIA(isar, 1000))
61 pr_debug("send_mbox(%02x,%02x,%d)\n", his, creg, len);
62 isar->write_reg(isar->hw, ISAR_CTRL_H, creg);
63 isar->write_reg(isar->hw, ISAR_CTRL_L, len);
64 isar->write_reg(isar->hw, ISAR_WADR, 0);
68 isar->write_fifo(isar->hw, ISAR_MBOX, msg, len);
69 if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
72 while (l < (int)len) {
73 hex_dump_to_buffer(msg + l, len - l, 32, 1,
75 pr_debug("%s: %s %02x: %s\n", isar->name,
76 __func__, l, isar->log);
81 isar->write_reg(isar->hw, ISAR_HIS, his);
82 waitforHIA(isar, 1000);
87 * receive message from ISAR mailbox
88 * if msg is NULL use isar->buf
91 rcv_mbox(struct isar_hw *isar, u8 *msg)
95 isar->write_reg(isar->hw, ISAR_RADR, 0);
96 if (msg && isar->clsb) {
97 isar->read_fifo(isar->hw, ISAR_MBOX, msg, isar->clsb);
98 if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
101 while (l < (int)isar->clsb) {
102 hex_dump_to_buffer(msg + l, isar->clsb - l, 32,
103 1, isar->log, 256, 1);
104 pr_debug("%s: %s %02x: %s\n", isar->name,
105 __func__, l, isar->log);
110 isar->write_reg(isar->hw, ISAR_IIA, 0);
114 get_irq_infos(struct isar_hw *isar)
116 isar->iis = isar->read_reg(isar->hw, ISAR_IIS);
117 isar->cmsb = isar->read_reg(isar->hw, ISAR_CTRL_H);
118 isar->clsb = isar->read_reg(isar->hw, ISAR_CTRL_L);
119 pr_debug("%s: rcv_mbox(%02x,%02x,%d)\n", isar->name,
120 isar->iis, isar->cmsb, isar->clsb);
124 * poll answer message from ISAR mailbox
125 * should be used only with ISAR IRQs disabled before DSP was started
129 poll_mbox(struct isar_hw *isar, int maxdelay)
134 irq = isar->read_reg(isar->hw, ISAR_IRQBIT);
135 while (t && !(irq & ISAR_IRQSTA)) {
141 rcv_mbox(isar, NULL);
143 pr_debug("%s: pulled %d bytes after %d us\n",
144 isar->name, isar->clsb, maxdelay - t);
149 ISARVersion(struct isar_hw *isar)
153 /* disable ISAR IRQ */
154 isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
155 isar->buf[0] = ISAR_MSG_HWVER;
158 if (!send_mbox(isar, ISAR_HIS_VNR, 0, 3, NULL))
160 if (!poll_mbox(isar, 1000))
162 if (isar->iis == ISAR_IIS_VNR) {
163 if (isar->clsb == 1) {
164 ver = isar->buf[0] & 0xf;
173 load_firmware(struct isar_hw *isar, const u8 *buf, int size)
175 u32 saved_debug = isar->ch[0].bch.debug;
178 u16 left, val, *sp = (u16 *)buf;
188 if (1 != isar->version) {
189 pr_err("%s: ISAR wrong version %d firmware download aborted\n",
190 isar->name, isar->version);
193 if (!(saved_debug & DEBUG_HW_FIRMWARE_FIFO))
194 isar->ch[0].bch.debug &= ~DEBUG_HW_BFIFO;
195 pr_debug("%s: load firmware %d words (%d bytes)\n",
196 isar->name, size / 2, size);
199 /* disable ISAR IRQ */
200 spin_lock_irqsave(isar->hwlock, flags);
201 isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
202 spin_unlock_irqrestore(isar->hwlock, flags);
204 blk_head.sadr = le16_to_cpu(*sp++);
205 blk_head.len = le16_to_cpu(*sp++);
206 blk_head.d_key = le16_to_cpu(*sp++);
208 pr_debug("ISAR firmware block (%#x,%d,%#x)\n",
209 blk_head.sadr, blk_head.len, blk_head.d_key & 0xff);
211 if (cnt + left > size) {
212 pr_info("%s: firmware error have %d need %d words\n",
213 isar->name, size, cnt + left);
217 spin_lock_irqsave(isar->hwlock, flags);
218 if (!send_mbox(isar, ISAR_HIS_DKEY, blk_head.d_key & 0xff,
220 pr_info("ISAR send_mbox dkey failed\n");
224 if (!poll_mbox(isar, 1000)) {
225 pr_warn("ISAR poll_mbox dkey failed\n");
229 spin_unlock_irqrestore(isar->hwlock, flags);
230 if ((isar->iis != ISAR_IIS_DKEY) || isar->cmsb || isar->clsb) {
231 pr_info("ISAR wrong dkey response (%x,%x,%x)\n",
232 isar->iis, isar->cmsb, isar->clsb);
243 /* the ISAR is big endian */
244 *mp++ = blk_head.sadr >> 8;
245 *mp++ = blk_head.sadr & 0xFF;
249 pr_debug("%s: load %3d words at %04x\n", isar->name,
251 blk_head.sadr += noc;
253 val = le16_to_cpu(*sp++);
258 spin_lock_irqsave(isar->hwlock, flags);
259 if (!send_mbox(isar, ISAR_HIS_FIRM, 0, nom, NULL)) {
260 pr_info("ISAR send_mbox prog failed\n");
264 if (!poll_mbox(isar, 1000)) {
265 pr_info("ISAR poll_mbox prog failed\n");
269 spin_unlock_irqrestore(isar->hwlock, flags);
270 if ((isar->iis != ISAR_IIS_FIRM) ||
271 isar->cmsb || isar->clsb) {
272 pr_info("ISAR wrong prog response (%x,%x,%x)\n",
273 isar->iis, isar->cmsb, isar->clsb);
278 pr_debug("%s: ISAR firmware block %d words loaded\n",
279 isar->name, blk_head.len);
281 isar->ch[0].bch.debug = saved_debug;
289 spin_lock_irqsave(isar->hwlock, flags);
290 if (!send_mbox(isar, ISAR_HIS_STDSP, 0, 2, NULL)) {
291 pr_info("ISAR send_mbox start dsp failed\n");
295 if (!poll_mbox(isar, 1000)) {
296 pr_info("ISAR poll_mbox start dsp failed\n");
300 if ((isar->iis != ISAR_IIS_STDSP) || isar->cmsb || isar->clsb) {
301 pr_info("ISAR wrong start dsp response (%x,%x,%x)\n",
302 isar->iis, isar->cmsb, isar->clsb);
306 pr_debug("%s: ISAR start dsp success\n", isar->name);
308 /* NORMAL mode entered */
309 /* Enable IRQs of ISAR */
310 isar->write_reg(isar->hw, ISAR_IRQBIT, ISAR_IRQSTA);
311 spin_unlock_irqrestore(isar->hwlock, flags);
312 cnt = 1000; /* max 1s */
313 while ((!isar->bstat) && cnt) {
318 pr_info("ISAR no general status event received\n");
322 pr_debug("%s: ISAR general status event %x\n",
323 isar->name, isar->bstat);
329 spin_lock_irqsave(isar->hwlock, flags);
330 if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_STST, 0, NULL)) {
331 pr_info("ISAR send_mbox self tst failed\n");
335 spin_unlock_irqrestore(isar->hwlock, flags);
336 cnt = 10000; /* max 100 ms */
337 while ((isar->iis != ISAR_IIS_DIAG) && cnt) {
343 pr_info("ISAR no self tst response\n");
347 if ((isar->cmsb == ISAR_CTRL_STST) && (isar->clsb == 1)
348 && (isar->buf[0] == 0))
349 pr_debug("%s: ISAR selftest OK\n", isar->name);
351 pr_info("ISAR selftest not OK %x/%x/%x\n",
352 isar->cmsb, isar->clsb, isar->buf[0]);
356 spin_lock_irqsave(isar->hwlock, flags);
358 if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_SWVER, 0, NULL)) {
359 pr_info("ISAR RQST SVN failed\n");
363 spin_unlock_irqrestore(isar->hwlock, flags);
364 cnt = 30000; /* max 300 ms */
365 while ((isar->iis != ISAR_IIS_DIAG) && cnt) {
371 pr_info("ISAR no SVN response\n");
375 if ((isar->cmsb == ISAR_CTRL_SWVER) && (isar->clsb == 1)) {
376 pr_notice("%s: ISAR software version %#x\n",
377 isar->name, isar->buf[0]);
379 pr_info("%s: ISAR wrong swver response (%x,%x)"
380 " cnt(%d)\n", isar->name, isar->cmsb,
386 spin_lock_irqsave(isar->hwlock, flags);
388 spin_unlock_irqrestore(isar->hwlock, flags);
391 spin_lock_irqsave(isar->hwlock, flags);
393 isar->ch[0].bch.debug = saved_debug;
395 /* disable ISAR IRQ */
396 isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
397 spin_unlock_irqrestore(isar->hwlock, flags);
402 deliver_status(struct isar_ch *ch, int status)
404 pr_debug("%s: HL->LL FAXIND %x\n", ch->is->name, status);
405 _queue_data(&ch->bch.ch, PH_CONTROL_IND, status, 0, NULL, GFP_ATOMIC);
409 isar_rcv_frame(struct isar_ch *ch)
415 pr_debug("%s; ISAR zero len frame\n", ch->is->name);
416 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
419 if (test_bit(FLG_RX_OFF, &ch->bch.Flags)) {
420 ch->bch.dropcnt += ch->is->clsb;
421 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
424 switch (ch->bch.state) {
426 pr_debug("%s: ISAR protocol 0 spurious IIS_RDATA %x/%x/%x\n",
427 ch->is->name, ch->is->iis, ch->is->cmsb, ch->is->clsb);
428 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
431 case ISDN_P_B_L2DTMF:
432 case ISDN_P_B_MODEM_ASYNC:
433 maxlen = bchannel_get_rxbuf(&ch->bch, ch->is->clsb);
435 pr_warn("%s.B%d: No bufferspace for %d bytes\n",
436 ch->is->name, ch->bch.nr, ch->is->clsb);
437 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
440 rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb));
441 recv_Bchannel(&ch->bch, 0, false);
444 maxlen = bchannel_get_rxbuf(&ch->bch, ch->is->clsb);
446 pr_warn("%s.B%d: No bufferspace for %d bytes\n",
447 ch->is->name, ch->bch.nr, ch->is->clsb);
448 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
451 if (ch->is->cmsb & HDLC_ERROR) {
452 pr_debug("%s: ISAR frame error %x len %d\n",
453 ch->is->name, ch->is->cmsb, ch->is->clsb);
454 #ifdef ERROR_STATISTIC
455 if (ch->is->cmsb & HDLC_ERR_RER)
457 if (ch->is->cmsb & HDLC_ERR_CER)
460 skb_trim(ch->bch.rx_skb, 0);
461 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
464 if (ch->is->cmsb & HDLC_FSD)
465 skb_trim(ch->bch.rx_skb, 0);
466 ptr = skb_put(ch->bch.rx_skb, ch->is->clsb);
467 rcv_mbox(ch->is, ptr);
468 if (ch->is->cmsb & HDLC_FED) {
469 if (ch->bch.rx_skb->len < 3) { /* last 2 are the FCS */
470 pr_debug("%s: ISAR frame to short %d\n",
471 ch->is->name, ch->bch.rx_skb->len);
472 skb_trim(ch->bch.rx_skb, 0);
475 skb_trim(ch->bch.rx_skb, ch->bch.rx_skb->len - 2);
476 recv_Bchannel(&ch->bch, 0, false);
479 case ISDN_P_B_T30_FAX:
480 if (ch->state != STFAX_ACTIV) {
481 pr_debug("%s: isar_rcv_frame: not ACTIV\n",
483 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
485 skb_trim(ch->bch.rx_skb, 0);
488 if (!ch->bch.rx_skb) {
489 ch->bch.rx_skb = mI_alloc_skb(ch->bch.maxlen,
491 if (unlikely(!ch->bch.rx_skb)) {
492 pr_info("%s: B receive out of memory\n",
494 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
498 if (ch->cmd == PCTRL_CMD_FRM) {
499 rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb));
500 pr_debug("%s: isar_rcv_frame: %d\n",
501 ch->is->name, ch->bch.rx_skb->len);
502 if (ch->is->cmsb & SART_NMD) { /* ABORT */
503 pr_debug("%s: isar_rcv_frame: no more data\n",
505 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
506 send_mbox(ch->is, SET_DPS(ch->dpath) |
507 ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
509 ch->state = STFAX_ESCAPE;
510 /* set_skb_flag(skb, DF_NOMOREDATA); */
512 recv_Bchannel(&ch->bch, 0, false);
513 if (ch->is->cmsb & SART_NMD)
514 deliver_status(ch, HW_MOD_NOCARR);
517 if (ch->cmd != PCTRL_CMD_FRH) {
518 pr_debug("%s: isar_rcv_frame: unknown fax mode %x\n",
519 ch->is->name, ch->cmd);
520 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
522 skb_trim(ch->bch.rx_skb, 0);
526 if ((ch->bch.rx_skb->len + ch->is->clsb) >
527 (ch->bch.maxlen + 2)) {
528 pr_info("%s: %s incoming packet too large\n",
529 ch->is->name, __func__);
530 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
531 skb_trim(ch->bch.rx_skb, 0);
533 } else if (ch->is->cmsb & HDLC_ERROR) {
534 pr_info("%s: ISAR frame error %x len %d\n",
535 ch->is->name, ch->is->cmsb, ch->is->clsb);
536 skb_trim(ch->bch.rx_skb, 0);
537 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
540 if (ch->is->cmsb & HDLC_FSD)
541 skb_trim(ch->bch.rx_skb, 0);
542 ptr = skb_put(ch->bch.rx_skb, ch->is->clsb);
543 rcv_mbox(ch->is, ptr);
544 if (ch->is->cmsb & HDLC_FED) {
545 if (ch->bch.rx_skb->len < 3) { /* last 2 are the FCS */
546 pr_info("%s: ISAR frame to short %d\n",
547 ch->is->name, ch->bch.rx_skb->len);
548 skb_trim(ch->bch.rx_skb, 0);
551 skb_trim(ch->bch.rx_skb, ch->bch.rx_skb->len - 2);
552 recv_Bchannel(&ch->bch, 0, false);
554 if (ch->is->cmsb & SART_NMD) { /* ABORT */
555 pr_debug("%s: isar_rcv_frame: no more data\n",
557 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
559 skb_trim(ch->bch.rx_skb, 0);
560 send_mbox(ch->is, SET_DPS(ch->dpath) |
561 ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC, 0, NULL);
562 ch->state = STFAX_ESCAPE;
563 deliver_status(ch, HW_MOD_NOCARR);
567 pr_info("isar_rcv_frame protocol (%x)error\n", ch->bch.state);
568 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
574 isar_fill_fifo(struct isar_ch *ch)
580 pr_debug("%s: ch%d tx_skb %d tx_idx %d\n", ch->is->name, ch->bch.nr,
581 ch->bch.tx_skb ? ch->bch.tx_skb->len : -1, ch->bch.tx_idx);
582 if (!(ch->is->bstat &
583 (ch->dpath == 1 ? BSTAT_RDM1 : BSTAT_RDM2)))
585 if (!ch->bch.tx_skb) {
586 if (!test_bit(FLG_TX_EMPTY, &ch->bch.Flags) ||
587 (ch->bch.state != ISDN_P_B_RAW))
590 /* use the card buffer */
591 memset(ch->is->buf, ch->bch.fill[0], count);
592 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
593 0, count, ch->is->buf);
596 count = ch->bch.tx_skb->len - ch->bch.tx_idx;
599 if (count > ch->mml) {
605 ptr = ch->bch.tx_skb->data + ch->bch.tx_idx;
606 if (!ch->bch.tx_idx) {
607 pr_debug("%s: frame start\n", ch->is->name);
608 if ((ch->bch.state == ISDN_P_B_T30_FAX) &&
609 (ch->cmd == PCTRL_CMD_FTH)) {
611 if ((ptr[0] == 0xff) && (ptr[1] == 0x13)) {
613 test_and_set_bit(FLG_LASTDATA,
615 pr_debug("%s: set LASTDATA\n",
618 test_and_set_bit(FLG_DLEETX,
625 ch->bch.tx_idx += count;
626 switch (ch->bch.state) {
628 pr_info("%s: wrong protocol 0\n", __func__);
631 case ISDN_P_B_L2DTMF:
632 case ISDN_P_B_MODEM_ASYNC:
633 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
637 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
640 case ISDN_P_B_T30_FAX:
641 if (ch->state != STFAX_ACTIV)
642 pr_debug("%s: not ACTIV\n", ch->is->name);
643 else if (ch->cmd == PCTRL_CMD_FTH)
644 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
646 else if (ch->cmd == PCTRL_CMD_FTM)
647 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
650 pr_debug("%s: not FTH/FTM\n", ch->is->name);
653 pr_info("%s: protocol(%x) error\n",
654 __func__, ch->bch.state);
659 static inline struct isar_ch *
660 sel_bch_isar(struct isar_hw *isar, u8 dpath)
662 struct isar_ch *base = &isar->ch[0];
664 if ((!dpath) || (dpath > 2))
666 if (base->dpath == dpath)
669 if (base->dpath == dpath)
675 send_next(struct isar_ch *ch)
677 pr_debug("%s: %s ch%d tx_skb %d tx_idx %d\n", ch->is->name, __func__,
678 ch->bch.nr, ch->bch.tx_skb ? ch->bch.tx_skb->len : -1,
680 if (ch->bch.state == ISDN_P_B_T30_FAX) {
681 if (ch->cmd == PCTRL_CMD_FTH) {
682 if (test_bit(FLG_LASTDATA, &ch->bch.Flags)) {
683 pr_debug("set NMD_DATA\n");
684 test_and_set_bit(FLG_NMD_DATA, &ch->bch.Flags);
686 } else if (ch->cmd == PCTRL_CMD_FTM) {
687 if (test_bit(FLG_DLEETX, &ch->bch.Flags)) {
688 test_and_set_bit(FLG_LASTDATA, &ch->bch.Flags);
689 test_and_set_bit(FLG_NMD_DATA, &ch->bch.Flags);
693 dev_kfree_skb(ch->bch.tx_skb);
694 if (get_next_bframe(&ch->bch)) {
696 test_and_clear_bit(FLG_TX_EMPTY, &ch->bch.Flags);
697 } else if (test_bit(FLG_TX_EMPTY, &ch->bch.Flags)) {
700 if (test_and_clear_bit(FLG_DLEETX, &ch->bch.Flags)) {
701 if (test_and_clear_bit(FLG_LASTDATA,
703 if (test_and_clear_bit(FLG_NMD_DATA,
706 send_mbox(ch->is, SET_DPS(ch->dpath) |
707 ISAR_HIS_SDATA, 0x01, 1, &zd);
709 test_and_set_bit(FLG_LL_OK, &ch->bch.Flags);
711 deliver_status(ch, HW_MOD_CONNECT);
713 } else if (test_bit(FLG_FILLEMPTY, &ch->bch.Flags)) {
714 test_and_set_bit(FLG_TX_EMPTY, &ch->bch.Flags);
720 check_send(struct isar_hw *isar, u8 rdm)
724 pr_debug("%s: rdm %x\n", isar->name, rdm);
725 if (rdm & BSTAT_RDM1) {
726 ch = sel_bch_isar(isar, 1);
727 if (ch && test_bit(FLG_ACTIVE, &ch->bch.Flags)) {
728 if (ch->bch.tx_skb && (ch->bch.tx_skb->len >
735 if (rdm & BSTAT_RDM2) {
736 ch = sel_bch_isar(isar, 2);
737 if (ch && test_bit(FLG_ACTIVE, &ch->bch.Flags)) {
738 if (ch->bch.tx_skb && (ch->bch.tx_skb->len >
747 const char *dmril[] = {"NO SPEED", "1200/75", "NODEF2", "75/1200", "NODEF4",
748 "300", "600", "1200", "2400", "4800", "7200",
749 "9600nt", "9600t", "12000", "14400", "WRONG"};
750 const char *dmrim[] = {"NO MOD", "NO DEF", "V32/V32b", "V22", "V21",
751 "Bell103", "V23", "Bell202", "V17", "V29", "V27ter"};
754 isar_pump_status_rsp(struct isar_ch *ch) {
755 u8 ril = ch->is->buf[0];
758 if (!test_and_clear_bit(ISAR_RATE_REQ, &ch->is->Flags))
761 pr_info("%s: wrong pstrsp ril=%d\n", ch->is->name, ril);
764 switch (ch->is->buf[1]) {
799 sprintf(ch->conmsg, "%s %s", dmril[ril], dmrim[rim]);
800 pr_debug("%s: pump strsp %s\n", ch->is->name, ch->conmsg);
804 isar_pump_statev_modem(struct isar_ch *ch, u8 devt) {
805 u8 dps = SET_DPS(ch->dpath);
808 case PSEV_10MS_TIMER:
809 pr_debug("%s: pump stev TIMER\n", ch->is->name);
812 pr_debug("%s: pump stev CONNECT\n", ch->is->name);
813 deliver_status(ch, HW_MOD_CONNECT);
816 pr_debug("%s: pump stev NO CONNECT\n", ch->is->name);
817 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
818 deliver_status(ch, HW_MOD_NOCARR);
821 pr_debug("%s: pump stev V24 OFF\n", ch->is->name);
824 pr_debug("%s: pump stev CTS ON\n", ch->is->name);
827 pr_debug("%s pump stev CTS OFF\n", ch->is->name);
830 pr_debug("%s: pump stev CARRIER ON\n", ch->is->name);
831 test_and_set_bit(ISAR_RATE_REQ, &ch->is->Flags);
832 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
835 pr_debug("%s: pump stev CARRIER OFF\n", ch->is->name);
838 pr_debug("%s: pump stev DSR ON\n", ch->is->name);
841 pr_debug("%s: pump stev DSR_OFF\n", ch->is->name);
844 pr_debug("%s: pump stev REMOTE RETRAIN\n", ch->is->name);
847 pr_debug("%s: pump stev REMOTE RENEGOTIATE\n", ch->is->name);
850 pr_debug("%s: pump stev GSTN CLEAR\n", ch->is->name);
853 pr_info("u%s: unknown pump stev %x\n", ch->is->name, devt);
859 isar_pump_statev_fax(struct isar_ch *ch, u8 devt) {
860 u8 dps = SET_DPS(ch->dpath);
864 case PSEV_10MS_TIMER:
865 pr_debug("%s: pump stev TIMER\n", ch->is->name);
868 pr_debug("%s: pump stev RSP_READY\n", ch->is->name);
869 ch->state = STFAX_READY;
870 deliver_status(ch, HW_MOD_READY);
872 if (test_bit(BC_FLG_ORIG, &ch->bch.Flags))
873 isar_pump_cmd(bch, HW_MOD_FRH, 3);
875 isar_pump_cmd(bch, HW_MOD_FTH, 3);
879 if (ch->state == STFAX_LINE) {
880 pr_debug("%s: pump stev LINE_TX_H\n", ch->is->name);
881 ch->state = STFAX_CONT;
882 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
883 PCTRL_CMD_CONT, 0, NULL);
885 pr_debug("%s: pump stev LINE_TX_H wrong st %x\n",
886 ch->is->name, ch->state);
890 if (ch->state == STFAX_LINE) {
891 pr_debug("%s: pump stev LINE_RX_H\n", ch->is->name);
892 ch->state = STFAX_CONT;
893 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
894 PCTRL_CMD_CONT, 0, NULL);
896 pr_debug("%s: pump stev LINE_RX_H wrong st %x\n",
897 ch->is->name, ch->state);
901 if (ch->state == STFAX_LINE) {
902 pr_debug("%s: pump stev LINE_TX_B\n", ch->is->name);
903 ch->state = STFAX_CONT;
904 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
905 PCTRL_CMD_CONT, 0, NULL);
907 pr_debug("%s: pump stev LINE_TX_B wrong st %x\n",
908 ch->is->name, ch->state);
912 if (ch->state == STFAX_LINE) {
913 pr_debug("%s: pump stev LINE_RX_B\n", ch->is->name);
914 ch->state = STFAX_CONT;
915 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
916 PCTRL_CMD_CONT, 0, NULL);
918 pr_debug("%s: pump stev LINE_RX_B wrong st %x\n",
919 ch->is->name, ch->state);
923 if (ch->state == STFAX_CONT) {
924 pr_debug("%s: pump stev RSP_CONN\n", ch->is->name);
925 ch->state = STFAX_ACTIV;
926 test_and_set_bit(ISAR_RATE_REQ, &ch->is->Flags);
927 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
928 if (ch->cmd == PCTRL_CMD_FTH) {
929 int delay = (ch->mod == 3) ? 1000 : 200;
930 /* 1s (200 ms) Flags before data */
931 if (test_and_set_bit(FLG_FTI_RUN,
933 del_timer(&ch->ftimer);
935 jiffies + ((delay * HZ) / 1000);
936 test_and_set_bit(FLG_LL_CONN,
938 add_timer(&ch->ftimer);
940 deliver_status(ch, HW_MOD_CONNECT);
943 pr_debug("%s: pump stev RSP_CONN wrong st %x\n",
944 ch->is->name, ch->state);
948 pr_debug("%s: pump stev FLAGS_DET\n", ch->is->name);
951 pr_debug("%s: pump stev RSP_DISC state(%d)\n",
952 ch->is->name, ch->state);
953 if (ch->state == STFAX_ESCAPE) {
955 switch (ch->newcmd) {
957 ch->state = STFAX_READY;
963 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
964 PCTRL_CMD_SILON, 1, &p1);
965 ch->state = STFAX_SILDET;
969 ch->mod = ch->newmod;
972 ch->cmd = ch->newcmd;
974 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
976 ch->state = STFAX_LINE;
980 pr_debug("%s: RSP_DISC unknown newcmd %x\n",
981 ch->is->name, ch->newcmd);
984 } else if (ch->state == STFAX_ACTIV) {
985 if (test_and_clear_bit(FLG_LL_OK, &ch->bch.Flags))
986 deliver_status(ch, HW_MOD_OK);
987 else if (ch->cmd == PCTRL_CMD_FRM)
988 deliver_status(ch, HW_MOD_NOCARR);
990 deliver_status(ch, HW_MOD_FCERROR);
991 ch->state = STFAX_READY;
992 } else if (ch->state != STFAX_SILDET) {
993 /* ignore in STFAX_SILDET */
994 ch->state = STFAX_READY;
995 deliver_status(ch, HW_MOD_FCERROR);
998 case PSEV_RSP_SILDET:
999 pr_debug("%s: pump stev RSP_SILDET\n", ch->is->name);
1000 if (ch->state == STFAX_SILDET) {
1001 ch->mod = ch->newmod;
1004 ch->cmd = ch->newcmd;
1006 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
1008 ch->state = STFAX_LINE;
1012 case PSEV_RSP_SILOFF:
1013 pr_debug("%s: pump stev RSP_SILOFF\n", ch->is->name);
1015 case PSEV_RSP_FCERR:
1016 if (ch->state == STFAX_LINE) {
1017 pr_debug("%s: pump stev RSP_FCERR try %d\n",
1018 ch->is->name, ch->try_mod);
1019 if (ch->try_mod--) {
1020 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
1021 ch->cmd, 1, &ch->mod);
1025 pr_debug("%s: pump stev RSP_FCERR\n", ch->is->name);
1026 ch->state = STFAX_ESCAPE;
1027 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
1029 deliver_status(ch, HW_MOD_FCERROR);
1037 mISDNisar_irq(struct isar_hw *isar)
1041 get_irq_infos(isar);
1042 switch (isar->iis & ISAR_IIS_MSCMSD) {
1043 case ISAR_IIS_RDATA:
1044 ch = sel_bch_isar(isar, isar->iis >> 6);
1048 pr_debug("%s: ISAR spurious IIS_RDATA %x/%x/%x\n",
1049 isar->name, isar->iis, isar->cmsb,
1051 isar->write_reg(isar->hw, ISAR_IIA, 0);
1054 case ISAR_IIS_GSTEV:
1055 isar->write_reg(isar->hw, ISAR_IIA, 0);
1056 isar->bstat |= isar->cmsb;
1057 check_send(isar, isar->cmsb);
1059 case ISAR_IIS_BSTEV:
1060 #ifdef ERROR_STATISTIC
1061 ch = sel_bch_isar(isar, isar->iis >> 6);
1063 if (isar->cmsb == BSTEV_TBO)
1065 if (isar->cmsb == BSTEV_RBO)
1069 pr_debug("%s: Buffer STEV dpath%d msb(%x)\n",
1070 isar->name, isar->iis >> 6, isar->cmsb);
1071 isar->write_reg(isar->hw, ISAR_IIA, 0);
1073 case ISAR_IIS_PSTEV:
1074 ch = sel_bch_isar(isar, isar->iis >> 6);
1076 rcv_mbox(isar, NULL);
1077 if (ch->bch.state == ISDN_P_B_MODEM_ASYNC)
1078 isar_pump_statev_modem(ch, isar->cmsb);
1079 else if (ch->bch.state == ISDN_P_B_T30_FAX)
1080 isar_pump_statev_fax(ch, isar->cmsb);
1081 else if (ch->bch.state == ISDN_P_B_RAW) {
1083 tt = isar->cmsb | 0x30;
1086 else if (tt == 0x3f)
1090 tt |= DTMF_TONE_VAL;
1091 _queue_data(&ch->bch.ch, PH_CONTROL_IND,
1092 MISDN_ID_ANY, sizeof(tt), &tt,
1095 pr_debug("%s: ISAR IIS_PSTEV pm %d sta %x\n",
1096 isar->name, ch->bch.state,
1099 pr_debug("%s: ISAR spurious IIS_PSTEV %x/%x/%x\n",
1100 isar->name, isar->iis, isar->cmsb,
1102 isar->write_reg(isar->hw, ISAR_IIA, 0);
1105 case ISAR_IIS_PSTRSP:
1106 ch = sel_bch_isar(isar, isar->iis >> 6);
1108 rcv_mbox(isar, NULL);
1109 isar_pump_status_rsp(ch);
1111 pr_debug("%s: ISAR spurious IIS_PSTRSP %x/%x/%x\n",
1112 isar->name, isar->iis, isar->cmsb,
1114 isar->write_reg(isar->hw, ISAR_IIA, 0);
1118 case ISAR_IIS_BSTRSP:
1119 case ISAR_IIS_IOM2RSP:
1120 rcv_mbox(isar, NULL);
1122 case ISAR_IIS_INVMSG:
1123 rcv_mbox(isar, NULL);
1124 pr_debug("%s: invalid msg his:%x\n", isar->name, isar->cmsb);
1127 rcv_mbox(isar, NULL);
1128 pr_debug("%s: unhandled msg iis(%x) ctrl(%x/%x)\n",
1129 isar->name, isar->iis, isar->cmsb, isar->clsb);
1133 EXPORT_SYMBOL(mISDNisar_irq);
1136 ftimer_handler(struct timer_list *t)
1138 struct isar_ch *ch = from_timer(ch, t, ftimer);
1140 pr_debug("%s: ftimer flags %lx\n", ch->is->name, ch->bch.Flags);
1141 test_and_clear_bit(FLG_FTI_RUN, &ch->bch.Flags);
1142 if (test_and_clear_bit(FLG_LL_CONN, &ch->bch.Flags))
1143 deliver_status(ch, HW_MOD_CONNECT);
1147 setup_pump(struct isar_ch *ch) {
1148 u8 dps = SET_DPS(ch->dpath);
1151 switch (ch->bch.state) {
1155 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, PMOD_BYPASS, 0, NULL);
1157 case ISDN_P_B_L2DTMF:
1158 if (test_bit(FLG_DTMFSEND, &ch->bch.Flags)) {
1159 param[0] = 5; /* TOA 5 db */
1160 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG,
1161 PMOD_DTMF_TRANS, 1, param);
1163 param[0] = 40; /* REL -46 dbm */
1164 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG,
1165 PMOD_DTMF, 1, param);
1168 case ISDN_P_B_MODEM_ASYNC:
1169 ctrl = PMOD_DATAMODEM;
1170 if (test_bit(FLG_ORIGIN, &ch->bch.Flags)) {
1172 param[5] = PV32P6_CTN;
1174 param[5] = PV32P6_ATN;
1176 param[0] = 6; /* 6 db */
1177 param[1] = PV32P2_V23R | PV32P2_V22A | PV32P2_V22B |
1178 PV32P2_V22C | PV32P2_V21 | PV32P2_BEL;
1179 param[2] = PV32P3_AMOD | PV32P3_V32B | PV32P3_V23B;
1180 param[3] = PV32P4_UT144;
1181 param[4] = PV32P5_UT144;
1182 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, ctrl, 6, param);
1184 case ISDN_P_B_T30_FAX:
1186 if (test_bit(FLG_ORIGIN, &ch->bch.Flags)) {
1188 param[1] = PFAXP2_CTN;
1190 param[1] = PFAXP2_ATN;
1192 param[0] = 6; /* 6 db */
1193 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, ctrl, 2, param);
1194 ch->state = STFAX_NULL;
1197 test_and_set_bit(FLG_FTI_RUN, &ch->bch.Flags);
1201 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
1206 setup_sart(struct isar_ch *ch) {
1207 u8 dps = SET_DPS(ch->dpath);
1208 u8 ctrl, param[2] = {0, 0};
1210 switch (ch->bch.state) {
1212 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_DISABLE,
1216 case ISDN_P_B_L2DTMF:
1217 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_BINARY,
1221 case ISDN_P_B_T30_FAX:
1222 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_HDLC,
1225 case ISDN_P_B_MODEM_ASYNC:
1226 ctrl = SMODE_V14 | SCTRL_HDMC_BOTH;
1227 param[0] = S_P1_CHS_8;
1228 param[1] = S_P2_BFT_DEF;
1229 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, ctrl, 2, param);
1233 send_mbox(ch->is, dps | ISAR_HIS_BSTREQ, 0, 0, NULL);
1238 setup_iom2(struct isar_ch *ch) {
1239 u8 dps = SET_DPS(ch->dpath);
1240 u8 cmsb = IOM_CTRL_ENA, msg[5] = {IOM_P1_TXD, 0, 0, 0, 0};
1242 if (ch->bch.nr == 2) {
1246 switch (ch->bch.state) {
1250 msg[1] = ch->dpath + 2;
1251 msg[3] = ch->dpath + 2;
1256 case ISDN_P_B_MODEM_ASYNC:
1257 case ISDN_P_B_T30_FAX:
1258 cmsb |= IOM_CTRL_RCV;
1260 case ISDN_P_B_L2DTMF:
1261 if (test_bit(FLG_DTMFSEND, &ch->bch.Flags))
1262 cmsb |= IOM_CTRL_RCV;
1263 cmsb |= IOM_CTRL_ALAW;
1266 send_mbox(ch->is, dps | ISAR_HIS_IOM2CFG, cmsb, 5, msg);
1268 send_mbox(ch->is, dps | ISAR_HIS_IOM2REQ, 0, 0, NULL);
1273 modeisar(struct isar_ch *ch, u32 bprotocol)
1275 /* Here we are selecting the best datapath for requested protocol */
1276 if (ch->bch.state == ISDN_P_NONE) { /* New Setup */
1277 switch (bprotocol) {
1278 case ISDN_P_NONE: /* init */
1280 /* no init for dpath 0 */
1282 test_and_clear_bit(FLG_HDLC, &ch->bch.Flags);
1283 test_and_clear_bit(FLG_TRANSPARENT, &ch->bch.Flags);
1287 /* best is datapath 2 */
1288 if (!test_and_set_bit(ISAR_DP2_USE, &ch->is->Flags))
1290 else if (!test_and_set_bit(ISAR_DP1_USE,
1294 pr_info("modeisar both paths in use\n");
1297 if (bprotocol == ISDN_P_B_HDLC)
1298 test_and_set_bit(FLG_HDLC, &ch->bch.Flags);
1300 test_and_set_bit(FLG_TRANSPARENT,
1303 case ISDN_P_B_MODEM_ASYNC:
1304 case ISDN_P_B_T30_FAX:
1305 case ISDN_P_B_L2DTMF:
1306 /* only datapath 1 */
1307 if (!test_and_set_bit(ISAR_DP1_USE, &ch->is->Flags))
1310 pr_info("%s: ISAR modeisar analog functions"
1311 "only with DP1\n", ch->is->name);
1316 pr_info("%s: protocol not known %x\n", ch->is->name,
1318 return -ENOPROTOOPT;
1321 pr_debug("%s: ISAR ch%d dp%d protocol %x->%x\n", ch->is->name,
1322 ch->bch.nr, ch->dpath, ch->bch.state, bprotocol);
1323 ch->bch.state = bprotocol;
1327 if (ch->bch.state == ISDN_P_NONE) {
1328 /* Clear resources */
1330 test_and_clear_bit(ISAR_DP1_USE, &ch->is->Flags);
1331 else if (ch->dpath == 2)
1332 test_and_clear_bit(ISAR_DP2_USE, &ch->is->Flags);
1334 ch->is->ctrl(ch->is->hw, HW_DEACT_IND, ch->bch.nr);
1336 ch->is->ctrl(ch->is->hw, HW_ACTIVATE_IND, ch->bch.nr);
1341 isar_pump_cmd(struct isar_ch *ch, u32 cmd, u8 para)
1343 u8 dps = SET_DPS(ch->dpath);
1344 u8 ctrl = 0, nom = 0, p1 = 0;
1346 pr_debug("%s: isar_pump_cmd %x/%x state(%x)\n",
1347 ch->is->name, cmd, para, ch->bch.state);
1350 if (ch->state == STFAX_READY) {
1352 ctrl = PCTRL_CMD_FTM;
1354 ch->state = STFAX_LINE;
1360 } else if ((ch->state == STFAX_ACTIV) &&
1361 (ch->cmd == PCTRL_CMD_FTM) && (ch->mod == para))
1362 deliver_status(ch, HW_MOD_CONNECT);
1365 ch->newcmd = PCTRL_CMD_FTM;
1367 ctrl = PCTRL_CMD_ESC;
1368 ch->state = STFAX_ESCAPE;
1372 if (ch->state == STFAX_READY) {
1374 ctrl = PCTRL_CMD_FTH;
1376 ch->state = STFAX_LINE;
1382 } else if ((ch->state == STFAX_ACTIV) &&
1383 (ch->cmd == PCTRL_CMD_FTH) && (ch->mod == para))
1384 deliver_status(ch, HW_MOD_CONNECT);
1387 ch->newcmd = PCTRL_CMD_FTH;
1389 ctrl = PCTRL_CMD_ESC;
1390 ch->state = STFAX_ESCAPE;
1394 if (ch->state == STFAX_READY) {
1396 ctrl = PCTRL_CMD_FRM;
1398 ch->state = STFAX_LINE;
1404 } else if ((ch->state == STFAX_ACTIV) &&
1405 (ch->cmd == PCTRL_CMD_FRM) && (ch->mod == para))
1406 deliver_status(ch, HW_MOD_CONNECT);
1409 ch->newcmd = PCTRL_CMD_FRM;
1411 ctrl = PCTRL_CMD_ESC;
1412 ch->state = STFAX_ESCAPE;
1416 if (ch->state == STFAX_READY) {
1418 ctrl = PCTRL_CMD_FRH;
1420 ch->state = STFAX_LINE;
1426 } else if ((ch->state == STFAX_ACTIV) &&
1427 (ch->cmd == PCTRL_CMD_FRH) && (ch->mod == para))
1428 deliver_status(ch, HW_MOD_CONNECT);
1431 ch->newcmd = PCTRL_CMD_FRH;
1433 ctrl = PCTRL_CMD_ESC;
1434 ch->state = STFAX_ESCAPE;
1437 case PCTRL_CMD_TDTMF:
1440 ctrl = PCTRL_CMD_TDTMF;
1444 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL, ctrl, nom, &p1);
1448 isar_setup(struct isar_hw *isar)
1455 for (i = 0; i < 2; i++) {
1457 send_mbox(isar, (i ? ISAR_HIS_DPS2 : ISAR_HIS_DPS1) |
1458 ISAR_HIS_P12CFG, 4, 1, &msg);
1459 isar->ch[i].mml = msg;
1460 isar->ch[i].bch.state = 0;
1461 isar->ch[i].dpath = i + 1;
1462 modeisar(&isar->ch[i], ISDN_P_NONE);
1467 isar_l2l1(struct mISDNchannel *ch, struct sk_buff *skb)
1469 struct bchannel *bch = container_of(ch, struct bchannel, ch);
1470 struct isar_ch *ich = container_of(bch, struct isar_ch, bch);
1472 struct mISDNhead *hh = mISDN_HEAD_P(skb);
1478 spin_lock_irqsave(ich->is->hwlock, flags);
1479 ret = bchannel_senddata(bch, skb);
1480 if (ret > 0) { /* direct TX */
1482 isar_fill_fifo(ich);
1484 spin_unlock_irqrestore(ich->is->hwlock, flags);
1486 case PH_ACTIVATE_REQ:
1487 spin_lock_irqsave(ich->is->hwlock, flags);
1488 if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
1489 ret = modeisar(ich, ch->protocol);
1492 spin_unlock_irqrestore(ich->is->hwlock, flags);
1494 _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
1497 case PH_DEACTIVATE_REQ:
1498 spin_lock_irqsave(ich->is->hwlock, flags);
1499 mISDN_clear_bchannel(bch);
1500 modeisar(ich, ISDN_P_NONE);
1501 spin_unlock_irqrestore(ich->is->hwlock, flags);
1502 _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
1506 case PH_CONTROL_REQ:
1507 val = (u32 *)skb->data;
1508 pr_debug("%s: PH_CONTROL | REQUEST %x/%x\n", ich->is->name,
1510 if ((hh->id == 0) && ((*val & ~DTMF_TONE_MASK) ==
1512 if (bch->state == ISDN_P_B_L2DTMF) {
1513 char tt = *val & DTMF_TONE_MASK;
1522 spin_lock_irqsave(ich->is->hwlock, flags);
1523 isar_pump_cmd(ich, PCTRL_CMD_TDTMF, tt);
1524 spin_unlock_irqrestore(ich->is->hwlock, flags);
1526 pr_info("%s: DTMF send wrong protocol %x\n",
1527 __func__, bch->state);
1530 } else if ((hh->id == HW_MOD_FRM) || (hh->id == HW_MOD_FRH) ||
1531 (hh->id == HW_MOD_FTM) || (hh->id == HW_MOD_FTH)) {
1532 for (id = 0; id < FAXMODCNT; id++)
1533 if (faxmodulation[id] == *val)
1535 if ((FAXMODCNT > id) &&
1536 test_bit(FLG_INITIALIZED, &bch->Flags)) {
1537 pr_debug("%s: isar: new mod\n", ich->is->name);
1538 isar_pump_cmd(ich, hh->id, *val);
1541 pr_info("%s: wrong modulation\n",
1545 } else if (hh->id == HW_MOD_LASTDATA)
1546 test_and_set_bit(FLG_DLEETX, &bch->Flags);
1548 pr_info("%s: unknown PH_CONTROL_REQ %x\n",
1549 ich->is->name, hh->id);
1554 pr_info("%s: %s unknown prim(%x,%x)\n",
1555 ich->is->name, __func__, hh->prim, hh->id);
1564 channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
1566 return mISDN_ctrl_bchannel(bch, cq);
1570 isar_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
1572 struct bchannel *bch = container_of(ch, struct bchannel, ch);
1573 struct isar_ch *ich = container_of(bch, struct isar_ch, bch);
1577 pr_debug("%s: %s cmd:%x %p\n", ich->is->name, __func__, cmd, arg);
1580 test_and_clear_bit(FLG_OPEN, &bch->Flags);
1581 cancel_work_sync(&bch->workq);
1582 spin_lock_irqsave(ich->is->hwlock, flags);
1583 mISDN_clear_bchannel(bch);
1584 modeisar(ich, ISDN_P_NONE);
1585 spin_unlock_irqrestore(ich->is->hwlock, flags);
1586 ch->protocol = ISDN_P_NONE;
1588 module_put(ich->is->owner);
1591 case CONTROL_CHANNEL:
1592 ret = channel_bctrl(bch, arg);
1595 pr_info("%s: %s unknown prim(%x)\n",
1596 ich->is->name, __func__, cmd);
1602 free_isar(struct isar_hw *isar)
1604 modeisar(&isar->ch[0], ISDN_P_NONE);
1605 modeisar(&isar->ch[1], ISDN_P_NONE);
1606 del_timer(&isar->ch[0].ftimer);
1607 del_timer(&isar->ch[1].ftimer);
1608 test_and_clear_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags);
1609 test_and_clear_bit(FLG_INITIALIZED, &isar->ch[1].bch.Flags);
1613 init_isar(struct isar_hw *isar)
1618 isar->version = ISARVersion(isar);
1619 if (isar->ch[0].bch.debug & DEBUG_HW)
1620 pr_notice("%s: Testing version %d (%d time)\n",
1621 isar->name, isar->version, 3 - cnt);
1622 if (isar->version == 1)
1624 isar->ctrl(isar->hw, HW_RESET_REQ, 0);
1626 if (isar->version != 1)
1628 timer_setup(&isar->ch[0].ftimer, ftimer_handler, 0);
1629 test_and_set_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags);
1630 timer_setup(&isar->ch[1].ftimer, ftimer_handler, 0);
1631 test_and_set_bit(FLG_INITIALIZED, &isar->ch[1].bch.Flags);
1636 isar_open(struct isar_hw *isar, struct channel_req *rq)
1638 struct bchannel *bch;
1640 if (rq->adr.channel == 0 || rq->adr.channel > 2)
1642 if (rq->protocol == ISDN_P_NONE)
1644 bch = &isar->ch[rq->adr.channel - 1].bch;
1645 if (test_and_set_bit(FLG_OPEN, &bch->Flags))
1646 return -EBUSY; /* b-channel can be only open once */
1647 bch->ch.protocol = rq->protocol;
1653 mISDNisar_init(struct isar_hw *isar, void *hw)
1658 for (i = 0; i < 2; i++) {
1659 isar->ch[i].bch.nr = i + 1;
1660 mISDN_initbchannel(&isar->ch[i].bch, MAX_DATA_MEM, 32);
1661 isar->ch[i].bch.ch.nr = i + 1;
1662 isar->ch[i].bch.ch.send = &isar_l2l1;
1663 isar->ch[i].bch.ch.ctrl = isar_bctrl;
1664 isar->ch[i].bch.hw = hw;
1665 isar->ch[i].is = isar;
1668 isar->init = &init_isar;
1669 isar->release = &free_isar;
1670 isar->firmware = &load_firmware;
1671 isar->open = &isar_open;
1673 ret = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
1674 (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)) |
1675 (1 << (ISDN_P_B_L2DTMF & ISDN_P_B_MASK)) |
1676 (1 << (ISDN_P_B_MODEM_ASYNC & ISDN_P_B_MASK)) |
1677 (1 << (ISDN_P_B_T30_FAX & ISDN_P_B_MASK));
1681 EXPORT_SYMBOL(mISDNisar_init);
1683 static int __init isar_mod_init(void)
1685 pr_notice("mISDN: ISAR driver Rev. %s\n", ISAR_REV);
1689 static void __exit isar_mod_cleanup(void)
1691 pr_notice("mISDN: ISAR module unloaded\n");
1693 module_init(isar_mod_init);
1694 module_exit(isar_mod_cleanup);