1/* 2 * w6692.c mISDN driver for Winbond w6692 based cards 3 * 4 * Author Karsten Keil <kkeil@suse.de> 5 * based on the w6692 I4L driver from Petr Novak <petr.novak@i.cz> 6 * 7 * Copyright 2009 by Karsten Keil <keil@isdn4linux.de> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * 22 */ 23 24#include <linux/module.h> 25#include <linux/pci.h> 26#include <linux/delay.h> 27#include <linux/mISDNhw.h> 28#include <linux/slab.h> 29#include "w6692.h" 30 31#define W6692_REV "2.0" 32 33#define DBUSY_TIMER_VALUE 80 34 35enum { 36 W6692_ASUS, 37 W6692_WINBOND, 38 W6692_USR 39}; 40 41/* private data in the PCI devices list */ 42struct w6692map { 43 u_int subtype; 44 char *name; 45}; 46 47static const struct w6692map w6692_map[] = 48{ 49 {W6692_ASUS, "Dynalink/AsusCom IS64PH"}, 50 {W6692_WINBOND, "Winbond W6692"}, 51 {W6692_USR, "USR W6692"} 52}; 53 54#ifndef PCI_VENDOR_ID_USR 55#define PCI_VENDOR_ID_USR 0x16ec 56#define PCI_DEVICE_ID_USR_6692 0x3409 57#endif 58 59struct w6692_ch { 60 struct bchannel bch; 61 u32 addr; 62 struct timer_list timer; 63 u8 b_mode; 64}; 65 66struct w6692_hw { 67 struct list_head list; 68 struct pci_dev *pdev; 69 char name[MISDN_MAX_IDLEN]; 70 u32 irq; 71 u32 irqcnt; 72 u32 addr; 73 u32 fmask; /* feature mask - bit set per card nr */ 74 int subtype; 75 spinlock_t lock; /* hw lock */ 76 u8 imask; 77 u8 pctl; 78 u8 xaddr; 79 u8 xdata; 80 u8 state; 81 struct w6692_ch bc[2]; 82 struct dchannel dch; 83 char log[64]; 84}; 85 86static LIST_HEAD(Cards); 87static DEFINE_RWLOCK(card_lock); /* protect Cards */ 88 89static int w6692_cnt; 90static int debug; 91static u32 led; 92static u32 pots; 93 94static void 95_set_debug(struct w6692_hw *card) 96{ 97 card->dch.debug = debug; 98 card->bc[0].bch.debug = debug; 99 card->bc[1].bch.debug = debug; 100} 101 102static int 103set_debug(const char *val, struct kernel_param *kp) 104{ 105 int ret; 106 struct w6692_hw *card; 107 108 ret = param_set_uint(val, kp); 109 if (!ret) { 110 read_lock(&card_lock); 111 list_for_each_entry(card, &Cards, list) 112 _set_debug(card); 113 read_unlock(&card_lock); 114 } 115 return ret; 116} 117 118MODULE_AUTHOR("Karsten Keil"); 119MODULE_LICENSE("GPL v2"); 120MODULE_VERSION(W6692_REV); 121module_param_call(debug, set_debug, param_get_uint, &debug, S_IRUGO | S_IWUSR); 122MODULE_PARM_DESC(debug, "W6692 debug mask"); 123module_param(led, uint, S_IRUGO | S_IWUSR); 124MODULE_PARM_DESC(led, "W6692 LED support bitmask (one bit per card)"); 125module_param(pots, uint, S_IRUGO | S_IWUSR); 126MODULE_PARM_DESC(pots, "W6692 POTS support bitmask (one bit per card)"); 127 128static inline u8 129ReadW6692(struct w6692_hw *card, u8 offset) 130{ 131 return inb(card->addr + offset); 132} 133 134static inline void 135WriteW6692(struct w6692_hw *card, u8 offset, u8 value) 136{ 137 outb(value, card->addr + offset); 138} 139 140static inline u8 141ReadW6692B(struct w6692_ch *bc, u8 offset) 142{ 143 return inb(bc->addr + offset); 144} 145 146static inline void 147WriteW6692B(struct w6692_ch *bc, u8 offset, u8 value) 148{ 149 outb(value, bc->addr + offset); 150} 151 152static void 153enable_hwirq(struct w6692_hw *card) 154{ 155 WriteW6692(card, W_IMASK, card->imask); 156} 157 158static void 159disable_hwirq(struct w6692_hw *card) 160{ 161 WriteW6692(card, W_IMASK, 0xff); 162} 163 164static const char *W6692Ver[] = {"V00", "V01", "V10", "V11"}; 165 166static void 167W6692Version(struct w6692_hw *card) 168{ 169 int val; 170 171 val = ReadW6692(card, W_D_RBCH); 172 pr_notice("%s: Winbond W6692 version: %s\n", card->name, 173 W6692Ver[(val >> 6) & 3]); 174} 175 176static void 177w6692_led_handler(struct w6692_hw *card, int on) 178{ 179 if ((!(card->fmask & led)) || card->subtype == W6692_USR) 180 return; 181 if (on) { 182 card->xdata &= 0xfb; /* LED ON */ 183 WriteW6692(card, W_XDATA, card->xdata); 184 } else { 185 card->xdata |= 0x04; /* LED OFF */ 186 WriteW6692(card, W_XDATA, card->xdata); 187 } 188} 189 190static void 191ph_command(struct w6692_hw *card, u8 cmd) 192{ 193 pr_debug("%s: ph_command %x\n", card->name, cmd); 194 WriteW6692(card, W_CIX, cmd); 195} 196 197static void 198W6692_new_ph(struct w6692_hw *card) 199{ 200 if (card->state == W_L1CMD_RST) 201 ph_command(card, W_L1CMD_DRC); 202 schedule_event(&card->dch, FLG_PHCHANGE); 203} 204 205static void 206W6692_ph_bh(struct dchannel *dch) 207{ 208 struct w6692_hw *card = dch->hw; 209 210 switch (card->state) { 211 case W_L1CMD_RST: 212 dch->state = 0; 213 l1_event(dch->l1, HW_RESET_IND); 214 break; 215 case W_L1IND_CD: 216 dch->state = 3; 217 l1_event(dch->l1, HW_DEACT_CNF); 218 break; 219 case W_L1IND_DRD: 220 dch->state = 3; 221 l1_event(dch->l1, HW_DEACT_IND); 222 break; 223 case W_L1IND_CE: 224 dch->state = 4; 225 l1_event(dch->l1, HW_POWERUP_IND); 226 break; 227 case W_L1IND_LD: 228 if (dch->state <= 5) { 229 dch->state = 5; 230 l1_event(dch->l1, ANYSIGNAL); 231 } else { 232 dch->state = 8; 233 l1_event(dch->l1, LOSTFRAMING); 234 } 235 break; 236 case W_L1IND_ARD: 237 dch->state = 6; 238 l1_event(dch->l1, INFO2); 239 break; 240 case W_L1IND_AI8: 241 dch->state = 7; 242 l1_event(dch->l1, INFO4_P8); 243 break; 244 case W_L1IND_AI10: 245 dch->state = 7; 246 l1_event(dch->l1, INFO4_P10); 247 break; 248 default: 249 pr_debug("%s: TE unknown state %02x dch state %02x\n", 250 card->name, card->state, dch->state); 251 break; 252 } 253 pr_debug("%s: TE newstate %02x\n", card->name, dch->state); 254} 255 256static void 257W6692_empty_Dfifo(struct w6692_hw *card, int count) 258{ 259 struct dchannel *dch = &card->dch; 260 u8 *ptr; 261 262 pr_debug("%s: empty_Dfifo %d\n", card->name, count); 263 if (!dch->rx_skb) { 264 dch->rx_skb = mI_alloc_skb(card->dch.maxlen, GFP_ATOMIC); 265 if (!dch->rx_skb) { 266 pr_info("%s: D receive out of memory\n", card->name); 267 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); 268 return; 269 } 270 } 271 if ((dch->rx_skb->len + count) >= dch->maxlen) { 272 pr_debug("%s: empty_Dfifo overrun %d\n", card->name, 273 dch->rx_skb->len + count); 274 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); 275 return; 276 } 277 ptr = skb_put(dch->rx_skb, count); 278 insb(card->addr + W_D_RFIFO, ptr, count); 279 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); 280 if (debug & DEBUG_HW_DFIFO) { 281 snprintf(card->log, 63, "D-recv %s %d ", 282 card->name, count); 283 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); 284 } 285} 286 287static void 288W6692_fill_Dfifo(struct w6692_hw *card) 289{ 290 struct dchannel *dch = &card->dch; 291 int count; 292 u8 *ptr; 293 u8 cmd = W_D_CMDR_XMS; 294 295 pr_debug("%s: fill_Dfifo\n", card->name); 296 if (!dch->tx_skb) 297 return; 298 count = dch->tx_skb->len - dch->tx_idx; 299 if (count <= 0) 300 return; 301 if (count > W_D_FIFO_THRESH) 302 count = W_D_FIFO_THRESH; 303 else 304 cmd |= W_D_CMDR_XME; 305 ptr = dch->tx_skb->data + dch->tx_idx; 306 dch->tx_idx += count; 307 outsb(card->addr + W_D_XFIFO, ptr, count); 308 WriteW6692(card, W_D_CMDR, cmd); 309 if (test_and_set_bit(FLG_BUSY_TIMER, &dch->Flags)) { 310 pr_debug("%s: fill_Dfifo dbusytimer running\n", card->name); 311 del_timer(&dch->timer); 312 } 313 init_timer(&dch->timer); 314 dch->timer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ)/1000); 315 add_timer(&dch->timer); 316 if (debug & DEBUG_HW_DFIFO) { 317 snprintf(card->log, 63, "D-send %s %d ", 318 card->name, count); 319 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); 320 } 321} 322 323static void 324d_retransmit(struct w6692_hw *card) 325{ 326 struct dchannel *dch = &card->dch; 327 328 if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) 329 del_timer(&dch->timer); 330#ifdef FIXME 331 if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags)) 332 dchannel_sched_event(dch, D_CLEARBUSY); 333#endif 334 if (test_bit(FLG_TX_BUSY, &dch->Flags)) { 335 /* Restart frame */ 336 dch->tx_idx = 0; 337 W6692_fill_Dfifo(card); 338 } else if (dch->tx_skb) { /* should not happen */ 339 pr_info("%s: %s without TX_BUSY\n", card->name, __func__); 340 test_and_set_bit(FLG_TX_BUSY, &dch->Flags); 341 dch->tx_idx = 0; 342 W6692_fill_Dfifo(card); 343 } else { 344 pr_info("%s: XDU no TX_BUSY\n", card->name); 345 if (get_next_dframe(dch)) 346 W6692_fill_Dfifo(card); 347 } 348} 349 350static void 351handle_rxD(struct w6692_hw *card) { 352 u8 stat; 353 int count; 354 355 stat = ReadW6692(card, W_D_RSTA); 356 if (stat & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) { 357 if (stat & W_D_RSTA_RDOV) { 358 pr_debug("%s: D-channel RDOV\n", card->name); 359#ifdef ERROR_STATISTIC 360 card->dch.err_rx++; 361#endif 362 } 363 if (stat & W_D_RSTA_CRCE) { 364 pr_debug("%s: D-channel CRC error\n", card->name); 365#ifdef ERROR_STATISTIC 366 card->dch.err_crc++; 367#endif 368 } 369 if (stat & W_D_RSTA_RMB) { 370 pr_debug("%s: D-channel ABORT\n", card->name); 371#ifdef ERROR_STATISTIC 372 card->dch.err_rx++; 373#endif 374 } 375 if (card->dch.rx_skb) 376 dev_kfree_skb(card->dch.rx_skb); 377 card->dch.rx_skb = NULL; 378 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST); 379 } else { 380 count = ReadW6692(card, W_D_RBCL) & (W_D_FIFO_THRESH - 1); 381 if (count == 0) 382 count = W_D_FIFO_THRESH; 383 W6692_empty_Dfifo(card, count); 384 recv_Dchannel(&card->dch); 385 } 386} 387 388static void 389handle_txD(struct w6692_hw *card) { 390 if (test_and_clear_bit(FLG_BUSY_TIMER, &card->dch.Flags)) 391 del_timer(&card->dch.timer); 392 if (card->dch.tx_skb && card->dch.tx_idx < card->dch.tx_skb->len) { 393 W6692_fill_Dfifo(card); 394 } else { 395 if (card->dch.tx_skb) 396 dev_kfree_skb(card->dch.tx_skb); 397 if (get_next_dframe(&card->dch)) 398 W6692_fill_Dfifo(card); 399 } 400} 401 402static void 403handle_statusD(struct w6692_hw *card) 404{ 405 struct dchannel *dch = &card->dch; 406 u8 exval, v1, cir; 407 408 exval = ReadW6692(card, W_D_EXIR); 409 410 pr_debug("%s: D_EXIR %02x\n", card->name, exval); 411 if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) { 412 /* Transmit underrun/collision */ 413 pr_debug("%s: D-channel underrun/collision\n", card->name); 414#ifdef ERROR_STATISTIC 415 dch->err_tx++; 416#endif 417 d_retransmit(card); 418 } 419 if (exval & W_D_EXI_RDOV) { /* RDOV */ 420 pr_debug("%s: D-channel RDOV\n", card->name); 421 WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST); 422 } 423 if (exval & W_D_EXI_TIN2) /* TIN2 - never */ 424 pr_debug("%s: spurious TIN2 interrupt\n", card->name); 425 if (exval & W_D_EXI_MOC) { /* MOC - not supported */ 426 v1 = ReadW6692(card, W_MOSR); 427 pr_debug("%s: spurious MOC interrupt MOSR %02x\n", 428 card->name, v1); 429 } 430 if (exval & W_D_EXI_ISC) { /* ISC - Level1 change */ 431 cir = ReadW6692(card, W_CIR); 432 pr_debug("%s: ISC CIR %02X\n", card->name, cir); 433 if (cir & W_CIR_ICC) { 434 v1 = cir & W_CIR_COD_MASK; 435 pr_debug("%s: ph_state_change %x -> %x\n", card->name, 436 dch->state, v1); 437 card->state = v1; 438 if (card->fmask & led) { 439 switch (v1) { 440 case W_L1IND_AI8: 441 case W_L1IND_AI10: 442 w6692_led_handler(card, 1); 443 break; 444 default: 445 w6692_led_handler(card, 0); 446 break; 447 } 448 } 449 W6692_new_ph(card); 450 } 451 if (cir & W_CIR_SCC) { 452 v1 = ReadW6692(card, W_SQR); 453 pr_debug("%s: SCC SQR %02X\n", card->name, v1); 454 } 455 } 456 if (exval & W_D_EXI_WEXP) 457 pr_debug("%s: spurious WEXP interrupt!\n", card->name); 458 if (exval & W_D_EXI_TEXP) 459 pr_debug("%s: spurious TEXP interrupt!\n", card->name); 460} 461 462static void 463W6692_empty_Bfifo(struct w6692_ch *wch, int count) 464{ 465 struct w6692_hw *card = wch->bch.hw; 466 u8 *ptr; 467 468 pr_debug("%s: empty_Bfifo %d\n", card->name, count); 469 if (unlikely(wch->bch.state == ISDN_P_NONE)) { 470 pr_debug("%s: empty_Bfifo ISDN_P_NONE\n", card->name); 471 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); 472 if (wch->bch.rx_skb) 473 skb_trim(wch->bch.rx_skb, 0); 474 return; 475 } 476 if (!wch->bch.rx_skb) { 477 wch->bch.rx_skb = mI_alloc_skb(wch->bch.maxlen, GFP_ATOMIC); 478 if (unlikely(!wch->bch.rx_skb)) { 479 pr_info("%s: B receive out of memory\n", card->name); 480 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | 481 W_B_CMDR_RACT); 482 return; 483 } 484 } 485 if (wch->bch.rx_skb->len + count > wch->bch.maxlen) { 486 pr_debug("%s: empty_Bfifo incoming packet too large\n", 487 card->name); 488 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); 489 skb_trim(wch->bch.rx_skb, 0); 490 return; 491 } 492 ptr = skb_put(wch->bch.rx_skb, count); 493 insb(wch->addr + W_B_RFIFO, ptr, count); 494 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); 495 if (debug & DEBUG_HW_DFIFO) { 496 snprintf(card->log, 63, "B%1d-recv %s %d ", 497 wch->bch.nr, card->name, count); 498 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); 499 } 500} 501 502static void 503W6692_fill_Bfifo(struct w6692_ch *wch) 504{ 505 struct w6692_hw *card = wch->bch.hw; 506 int count; 507 u8 *ptr, cmd = W_B_CMDR_RACT | W_B_CMDR_XMS; 508 509 pr_debug("%s: fill Bfifo\n", card->name); 510 if (!wch->bch.tx_skb) 511 return; 512 count = wch->bch.tx_skb->len - wch->bch.tx_idx; 513 if (count <= 0) 514 return; 515 ptr = wch->bch.tx_skb->data + wch->bch.tx_idx; 516 if (count > W_B_FIFO_THRESH) 517 count = W_B_FIFO_THRESH; 518 else if (test_bit(FLG_HDLC, &wch->bch.Flags)) 519 cmd |= W_B_CMDR_XME; 520 521 pr_debug("%s: fill Bfifo%d/%d\n", card->name, 522 count, wch->bch.tx_idx); 523 wch->bch.tx_idx += count; 524 outsb(wch->addr + W_B_XFIFO, ptr, count); 525 WriteW6692B(wch, W_B_CMDR, cmd); 526 if (debug & DEBUG_HW_DFIFO) { 527 snprintf(card->log, 63, "B%1d-send %s %d ", 528 wch->bch.nr, card->name, count); 529 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); 530 } 531} 532 533 534static int 535disable_pots(struct w6692_ch *wch) 536{ 537 struct w6692_hw *card = wch->bch.hw; 538 539 if (!(card->fmask & pots)) 540 return -ENODEV; 541 wch->b_mode &= ~(W_B_MODE_EPCM | W_B_MODE_BSW0); 542 WriteW6692B(wch, W_B_MODE, wch->b_mode); 543 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | 544 W_B_CMDR_XRST); 545 return 0; 546} 547 548static int 549w6692_mode(struct w6692_ch *wch, u32 pr) 550{ 551 struct w6692_hw *card; 552 553 card = wch->bch.hw; 554 pr_debug("%s: B%d protocol %x-->%x\n", card->name, 555 wch->bch.nr, wch->bch.state, pr); 556 switch (pr) { 557 case ISDN_P_NONE: 558 if ((card->fmask & pots) && (wch->b_mode & W_B_MODE_EPCM)) 559 disable_pots(wch); 560 wch->b_mode = 0; 561 mISDN_clear_bchannel(&wch->bch); 562 WriteW6692B(wch, W_B_MODE, wch->b_mode); 563 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); 564 test_and_clear_bit(FLG_HDLC, &wch->bch.Flags); 565 test_and_clear_bit(FLG_TRANSPARENT, &wch->bch.Flags); 566 break; 567 case ISDN_P_B_RAW: 568 wch->b_mode = W_B_MODE_MMS; 569 WriteW6692B(wch, W_B_MODE, wch->b_mode); 570 WriteW6692B(wch, W_B_EXIM, 0); 571 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | 572 W_B_CMDR_XRST); 573 test_and_set_bit(FLG_TRANSPARENT, &wch->bch.Flags); 574 break; 575 case ISDN_P_B_HDLC: 576 wch->b_mode = W_B_MODE_ITF; 577 WriteW6692B(wch, W_B_MODE, wch->b_mode); 578 WriteW6692B(wch, W_B_ADM1, 0xff); 579 WriteW6692B(wch, W_B_ADM2, 0xff); 580 WriteW6692B(wch, W_B_EXIM, 0); 581 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | 582 W_B_CMDR_XRST); 583 test_and_set_bit(FLG_HDLC, &wch->bch.Flags); 584 break; 585 default: 586 pr_info("%s: protocol %x not known\n", card->name, pr); 587 return -ENOPROTOOPT; 588 } 589 wch->bch.state = pr; 590 return 0; 591} 592 593static void 594send_next(struct w6692_ch *wch) 595{ 596 if (wch->bch.tx_skb && wch->bch.tx_idx < wch->bch.tx_skb->len) 597 W6692_fill_Bfifo(wch); 598 else { 599 if (wch->bch.tx_skb) { 600 /* send confirm, on trans, free on hdlc. */ 601 if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) 602 confirm_Bsend(&wch->bch); 603 dev_kfree_skb(wch->bch.tx_skb); 604 } 605 if (get_next_bframe(&wch->bch)) 606 W6692_fill_Bfifo(wch); 607 } 608} 609 610static void 611W6692B_interrupt(struct w6692_hw *card, int ch) 612{ 613 struct w6692_ch *wch = &card->bc[ch]; 614 int count; 615 u8 stat, star = 0; 616 617 stat = ReadW6692B(wch, W_B_EXIR); 618 pr_debug("%s: B%d EXIR %02x\n", card->name, wch->bch.nr, stat); 619 if (stat & W_B_EXI_RME) { 620 star = ReadW6692B(wch, W_B_STAR); 621 if (star & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) { 622 if ((star & W_B_STAR_RDOV) && 623 test_bit(FLG_ACTIVE, &wch->bch.Flags)) { 624 pr_debug("%s: B%d RDOV proto=%x\n", card->name, 625 wch->bch.nr, wch->bch.state); 626#ifdef ERROR_STATISTIC 627 wch->bch.err_rdo++; 628#endif 629 } 630 if (test_bit(FLG_HDLC, &wch->bch.Flags)) { 631 if (star & W_B_STAR_CRCE) { 632 pr_debug("%s: B%d CRC error\n", 633 card->name, wch->bch.nr); 634#ifdef ERROR_STATISTIC 635 wch->bch.err_crc++; 636#endif 637 } 638 if (star & W_B_STAR_RMB) { 639 pr_debug("%s: B%d message abort\n", 640 card->name, wch->bch.nr); 641#ifdef ERROR_STATISTIC 642 wch->bch.err_inv++; 643#endif 644 } 645 } 646 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | 647 W_B_CMDR_RRST | W_B_CMDR_RACT); 648 if (wch->bch.rx_skb) 649 skb_trim(wch->bch.rx_skb, 0); 650 } else { 651 count = ReadW6692B(wch, W_B_RBCL) & 652 (W_B_FIFO_THRESH - 1); 653 if (count == 0) 654 count = W_B_FIFO_THRESH; 655 W6692_empty_Bfifo(wch, count); 656 recv_Bchannel(&wch->bch, 0); 657 } 658 } 659 if (stat & W_B_EXI_RMR) { 660 if (!(stat & W_B_EXI_RME)) 661 star = ReadW6692B(wch, W_B_STAR); 662 if (star & W_B_STAR_RDOV) { 663 pr_debug("%s: B%d RDOV proto=%x\n", card->name, 664 wch->bch.nr, wch->bch.state); 665#ifdef ERROR_STATISTIC 666 wch->bch.err_rdo++; 667#endif 668 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | 669 W_B_CMDR_RRST | W_B_CMDR_RACT); 670 } else { 671 W6692_empty_Bfifo(wch, W_B_FIFO_THRESH); 672 if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags) && 673 wch->bch.rx_skb && (wch->bch.rx_skb->len > 0)) 674 recv_Bchannel(&wch->bch, 0); 675 } 676 } 677 if (stat & W_B_EXI_RDOV) { 678 /* only if it is not handled yet */ 679 if (!(star & W_B_STAR_RDOV)) { 680 pr_debug("%s: B%d RDOV IRQ proto=%x\n", card->name, 681 wch->bch.nr, wch->bch.state); 682#ifdef ERROR_STATISTIC 683 wch->bch.err_rdo++; 684#endif 685 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | 686 W_B_CMDR_RRST | W_B_CMDR_RACT); 687 } 688 } 689 if (stat & W_B_EXI_XFR) { 690 if (!(stat & (W_B_EXI_RME | W_B_EXI_RMR))) { 691 star = ReadW6692B(wch, W_B_STAR); 692 pr_debug("%s: B%d star %02x\n", card->name, 693 wch->bch.nr, star); 694 } 695 if (star & W_B_STAR_XDOW) { 696 pr_debug("%s: B%d XDOW proto=%x\n", card->name, 697 wch->bch.nr, wch->bch.state); 698#ifdef ERROR_STATISTIC 699 wch->bch.err_xdu++; 700#endif 701 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST | 702 W_B_CMDR_RACT); 703 /* resend */ 704 if (wch->bch.tx_skb) { 705 if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) 706 wch->bch.tx_idx = 0; 707 } 708 } 709 send_next(wch); 710 if (stat & W_B_EXI_XDUN) 711 return; /* handle XDOW only once */ 712 } 713 if (stat & W_B_EXI_XDUN) { 714 pr_debug("%s: B%d XDUN proto=%x\n", card->name, 715 wch->bch.nr, wch->bch.state); 716#ifdef ERROR_STATISTIC 717 wch->bch.err_xdu++; 718#endif 719 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT); 720 /* resend */ 721 if (wch->bch.tx_skb) { 722 if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) 723 wch->bch.tx_idx = 0; 724 } 725 send_next(wch); 726 } 727} 728 729static irqreturn_t 730w6692_irq(int intno, void *dev_id) 731{ 732 struct w6692_hw *card = dev_id; 733 u8 ista; 734 735 spin_lock(&card->lock); 736 ista = ReadW6692(card, W_ISTA); 737 if ((ista | card->imask) == card->imask) { 738 /* possible a shared IRQ reqest */ 739 spin_unlock(&card->lock); 740 return IRQ_NONE; 741 } 742 card->irqcnt++; 743 pr_debug("%s: ista %02x\n", card->name, ista); 744 ista &= ~card->imask; 745 if (ista & W_INT_B1_EXI) 746 W6692B_interrupt(card, 0); 747 if (ista & W_INT_B2_EXI) 748 W6692B_interrupt(card, 1); 749 if (ista & W_INT_D_RME) 750 handle_rxD(card); 751 if (ista & W_INT_D_RMR) 752 W6692_empty_Dfifo(card, W_D_FIFO_THRESH); 753 if (ista & W_INT_D_XFR) 754 handle_txD(card); 755 if (ista & W_INT_D_EXI) 756 handle_statusD(card); 757 if (ista & (W_INT_XINT0 | W_INT_XINT1)) /* XINT0/1 - never */ 758 pr_debug("%s: W6692 spurious XINT!\n", card->name); 759/* End IRQ Handler */ 760 spin_unlock(&card->lock); 761 return IRQ_HANDLED; 762} 763 764static void 765dbusy_timer_handler(struct dchannel *dch) 766{ 767 struct w6692_hw *card = dch->hw; 768 int rbch, star; 769 u_long flags; 770 771 if (test_bit(FLG_BUSY_TIMER, &dch->Flags)) { 772 spin_lock_irqsave(&card->lock, flags); 773 rbch = ReadW6692(card, W_D_RBCH); 774 star = ReadW6692(card, W_D_STAR); 775 pr_debug("%s: D-Channel Busy RBCH %02x STAR %02x\n", 776 card->name, rbch, star); 777 if (star & W_D_STAR_XBZ) /* D-Channel Busy */ 778 test_and_set_bit(FLG_L1_BUSY, &dch->Flags); 779 else { 780 /* discard frame; reset transceiver */ 781 test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags); 782 if (dch->tx_idx) 783 dch->tx_idx = 0; 784 else 785 pr_info("%s: W6692 D-Channel Busy no tx_idx\n", 786 card->name); 787 /* Transmitter reset */ 788 WriteW6692(card, W_D_CMDR, W_D_CMDR_XRST); 789 } 790 spin_unlock_irqrestore(&card->lock, flags); 791 } 792} 793 794void initW6692(struct w6692_hw *card) 795{ 796 u8 val; 797 798 card->dch.timer.function = (void *)dbusy_timer_handler; 799 card->dch.timer.data = (u_long)&card->dch; 800 init_timer(&card->dch.timer); 801 w6692_mode(&card->bc[0], ISDN_P_NONE); 802 w6692_mode(&card->bc[1], ISDN_P_NONE); 803 WriteW6692(card, W_D_CTL, 0x00); 804 disable_hwirq(card); 805 WriteW6692(card, W_D_SAM, 0xff); 806 WriteW6692(card, W_D_TAM, 0xff); 807 WriteW6692(card, W_D_MODE, W_D_MODE_RACT); 808 card->state = W_L1CMD_RST; 809 ph_command(card, W_L1CMD_RST); 810 ph_command(card, W_L1CMD_ECK); 811 /* enable all IRQ but extern */ 812 card->imask = 0x18; 813 WriteW6692(card, W_D_EXIM, 0x00); 814 WriteW6692B(&card->bc[0], W_B_EXIM, 0); 815 WriteW6692B(&card->bc[1], W_B_EXIM, 0); 816 /* Reset D-chan receiver and transmitter */ 817 WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST); 818 /* Reset B-chan receiver and transmitter */ 819 WriteW6692B(&card->bc[0], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); 820 WriteW6692B(&card->bc[1], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); 821 /* enable peripheral */ 822 if (card->subtype == W6692_USR) { 823 /* seems that USR implemented some power control features 824 * Pin 79 is connected to the oscilator circuit so we 825 * have to handle it here 826 */ 827 card->pctl = 0x80; 828 card->xdata = 0; 829 WriteW6692(card, W_PCTL, card->pctl); 830 WriteW6692(card, W_XDATA, card->xdata); 831 } else { 832 card->pctl = W_PCTL_OE5 | W_PCTL_OE4 | W_PCTL_OE2 | 833 W_PCTL_OE1 | W_PCTL_OE0; 834 card->xaddr = 0x00;/* all sw off */ 835 if (card->fmask & pots) 836 card->xdata |= 0x06; /* POWER UP/ LED OFF / ALAW */ 837 if (card->fmask & led) 838 card->xdata |= 0x04; /* LED OFF */ 839 if ((card->fmask & pots) || (card->fmask & led)) { 840 WriteW6692(card, W_PCTL, card->pctl); 841 WriteW6692(card, W_XADDR, card->xaddr); 842 WriteW6692(card, W_XDATA, card->xdata); 843 val = ReadW6692(card, W_XADDR); 844 if (debug & DEBUG_HW) 845 pr_notice("%s: W_XADDR=%02x\n", 846 card->name, val); 847 } 848 } 849} 850 851static void 852reset_w6692(struct w6692_hw *card) 853{ 854 WriteW6692(card, W_D_CTL, W_D_CTL_SRST); 855 mdelay(10); 856 WriteW6692(card, W_D_CTL, 0); 857} 858 859static int 860init_card(struct w6692_hw *card) 861{ 862 int cnt = 3; 863 u_long flags; 864 865 spin_lock_irqsave(&card->lock, flags); 866 disable_hwirq(card); 867 spin_unlock_irqrestore(&card->lock, flags); 868 if (request_irq(card->irq, w6692_irq, IRQF_SHARED, card->name, card)) { 869 pr_info("%s: couldn't get interrupt %d\n", card->name, 870 card->irq); 871 return -EIO; 872 } 873 while (cnt--) { 874 spin_lock_irqsave(&card->lock, flags); 875 initW6692(card); 876 enable_hwirq(card); 877 spin_unlock_irqrestore(&card->lock, flags); 878 /* Timeout 10ms */ 879 msleep_interruptible(10); 880 if (debug & DEBUG_HW) 881 pr_notice("%s: IRQ %d count %d\n", card->name, 882 card->irq, card->irqcnt); 883 if (!card->irqcnt) { 884 pr_info("%s: IRQ(%d) getting no IRQs during init %d\n", 885 card->name, card->irq, 3 - cnt); 886 reset_w6692(card); 887 } else 888 return 0; 889 } 890 free_irq(card->irq, card); 891 return -EIO; 892} 893 894static int 895w6692_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb) 896{ 897 struct bchannel *bch = container_of(ch, struct bchannel, ch); 898 struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch); 899 struct w6692_hw *card = bch->hw; 900 int ret = -EINVAL; 901 struct mISDNhead *hh = mISDN_HEAD_P(skb); 902 u32 id; 903 u_long flags; 904 905 switch (hh->prim) { 906 case PH_DATA_REQ: 907 spin_lock_irqsave(&card->lock, flags); 908 ret = bchannel_senddata(bch, skb); 909 if (ret > 0) { /* direct TX */ 910 id = hh->id; /* skb can be freed */ 911 ret = 0; 912 W6692_fill_Bfifo(bc); 913 spin_unlock_irqrestore(&card->lock, flags); 914 if (!test_bit(FLG_TRANSPARENT, &bch->Flags)) 915 queue_ch_frame(ch, PH_DATA_CNF, id, NULL); 916 } else 917 spin_unlock_irqrestore(&card->lock, flags); 918 return ret; 919 case PH_ACTIVATE_REQ: 920 spin_lock_irqsave(&card->lock, flags); 921 if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) 922 ret = w6692_mode(bc, ch->protocol); 923 else 924 ret = 0; 925 spin_unlock_irqrestore(&card->lock, flags); 926 if (!ret) 927 _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0, 928 NULL, GFP_KERNEL); 929 break; 930 case PH_DEACTIVATE_REQ: 931 spin_lock_irqsave(&card->lock, flags); 932 mISDN_clear_bchannel(bch); 933 w6692_mode(bc, ISDN_P_NONE); 934 spin_unlock_irqrestore(&card->lock, flags); 935 _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0, 936 NULL, GFP_KERNEL); 937 ret = 0; 938 break; 939 default: 940 pr_info("%s: %s unknown prim(%x,%x)\n", 941 card->name, __func__, hh->prim, hh->id); 942 ret = -EINVAL; 943 } 944 if (!ret) 945 dev_kfree_skb(skb); 946 return ret; 947} 948 949static int 950channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) 951{ 952 int ret = 0; 953 954 switch (cq->op) { 955 case MISDN_CTRL_GETOP: 956 cq->op = 0; 957 break; 958 /* Nothing implemented yet */ 959 case MISDN_CTRL_FILL_EMPTY: 960 default: 961 pr_info("%s: unknown Op %x\n", __func__, cq->op); 962 ret = -EINVAL; 963 break; 964 } 965 return ret; 966} 967 968static int 969open_bchannel(struct w6692_hw *card, struct channel_req *rq) 970{ 971 struct bchannel *bch; 972 973 if (rq->adr.channel > 2) 974 return -EINVAL; 975 if (rq->protocol == ISDN_P_NONE) 976 return -EINVAL; 977 bch = &card->bc[rq->adr.channel - 1].bch; 978 if (test_and_set_bit(FLG_OPEN, &bch->Flags)) 979 return -EBUSY; /* b-channel can be only open once */ 980 test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags); 981 bch->ch.protocol = rq->protocol; 982 rq->ch = &bch->ch; 983 return 0; 984} 985 986static int 987channel_ctrl(struct w6692_hw *card, struct mISDN_ctrl_req *cq) 988{ 989 int ret = 0; 990 991 switch (cq->op) { 992 case MISDN_CTRL_GETOP: 993 cq->op = 0; 994 break; 995 default: 996 pr_info("%s: unknown CTRL OP %x\n", card->name, cq->op); 997 ret = -EINVAL; 998 break; 999 } 1000 return ret; 1001} 1002 1003static int 1004w6692_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg) 1005{ 1006 struct bchannel *bch = container_of(ch, struct bchannel, ch); 1007 struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch); 1008 struct w6692_hw *card = bch->hw; 1009 int ret = -EINVAL; 1010 u_long flags; 1011 1012 pr_debug("%s: %s cmd:%x %p\n", card->name, __func__, cmd, arg); 1013 switch (cmd) { 1014 case CLOSE_CHANNEL: 1015 test_and_clear_bit(FLG_OPEN, &bch->Flags); 1016 if (test_bit(FLG_ACTIVE, &bch->Flags)) { 1017 spin_lock_irqsave(&card->lock, flags); 1018 mISDN_freebchannel(bch); 1019 w6692_mode(bc, ISDN_P_NONE); 1020 spin_unlock_irqrestore(&card->lock, flags); 1021 } else { 1022 skb_queue_purge(&bch->rqueue); 1023 bch->rcount = 0; 1024 } 1025 ch->protocol = ISDN_P_NONE; 1026 ch->peer = NULL; 1027 module_put(THIS_MODULE); 1028 ret = 0; 1029 break; 1030 case CONTROL_CHANNEL: 1031 ret = channel_bctrl(bch, arg); 1032 break; 1033 default: 1034 pr_info("%s: %s unknown prim(%x)\n", 1035 card->name, __func__, cmd); 1036 } 1037 return ret; 1038} 1039 1040static int 1041w6692_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb) 1042{ 1043 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); 1044 struct dchannel *dch = container_of(dev, struct dchannel, dev); 1045 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); 1046 int ret = -EINVAL; 1047 struct mISDNhead *hh = mISDN_HEAD_P(skb); 1048 u32 id; 1049 u_long flags; 1050 1051 switch (hh->prim) { 1052 case PH_DATA_REQ: 1053 spin_lock_irqsave(&card->lock, flags); 1054 ret = dchannel_senddata(dch, skb); 1055 if (ret > 0) { /* direct TX */ 1056 id = hh->id; /* skb can be freed */ 1057 W6692_fill_Dfifo(card); 1058 ret = 0; 1059 spin_unlock_irqrestore(&card->lock, flags); 1060 queue_ch_frame(ch, PH_DATA_CNF, id, NULL); 1061 } else 1062 spin_unlock_irqrestore(&card->lock, flags); 1063 return ret; 1064 case PH_ACTIVATE_REQ: 1065 ret = l1_event(dch->l1, hh->prim); 1066 break; 1067 case PH_DEACTIVATE_REQ: 1068 test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); 1069 ret = l1_event(dch->l1, hh->prim); 1070 break; 1071 } 1072 1073 if (!ret) 1074 dev_kfree_skb(skb); 1075 return ret; 1076} 1077 1078static int 1079w6692_l1callback(struct dchannel *dch, u32 cmd) 1080{ 1081 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); 1082 u_long flags; 1083 1084 pr_debug("%s: cmd(%x) state(%02x)\n", card->name, cmd, card->state); 1085 switch (cmd) { 1086 case INFO3_P8: 1087 spin_lock_irqsave(&card->lock, flags); 1088 ph_command(card, W_L1CMD_AR8); 1089 spin_unlock_irqrestore(&card->lock, flags); 1090 break; 1091 case INFO3_P10: 1092 spin_lock_irqsave(&card->lock, flags); 1093 ph_command(card, W_L1CMD_AR10); 1094 spin_unlock_irqrestore(&card->lock, flags); 1095 break; 1096 case HW_RESET_REQ: 1097 spin_lock_irqsave(&card->lock, flags); 1098 if (card->state != W_L1IND_DRD) 1099 ph_command(card, W_L1CMD_RST); 1100 ph_command(card, W_L1CMD_ECK); 1101 spin_unlock_irqrestore(&card->lock, flags); 1102 break; 1103 case HW_DEACT_REQ: 1104 skb_queue_purge(&dch->squeue); 1105 if (dch->tx_skb) { 1106 dev_kfree_skb(dch->tx_skb); 1107 dch->tx_skb = NULL; 1108 } 1109 dch->tx_idx = 0; 1110 if (dch->rx_skb) { 1111 dev_kfree_skb(dch->rx_skb); 1112 dch->rx_skb = NULL; 1113 } 1114 test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); 1115 if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) 1116 del_timer(&dch->timer); 1117 break; 1118 case HW_POWERUP_REQ: 1119 spin_lock_irqsave(&card->lock, flags); 1120 ph_command(card, W_L1CMD_ECK); 1121 spin_unlock_irqrestore(&card->lock, flags); 1122 break; 1123 case PH_ACTIVATE_IND: 1124 test_and_set_bit(FLG_ACTIVE, &dch->Flags); 1125 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, 1126 GFP_ATOMIC); 1127 break; 1128 case PH_DEACTIVATE_IND: 1129 test_and_clear_bit(FLG_ACTIVE, &dch->Flags); 1130 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, 1131 GFP_ATOMIC); 1132 break; 1133 default: 1134 pr_debug("%s: %s unknown command %x\n", card->name, 1135 __func__, cmd); 1136 return -1; 1137 } 1138 return 0; 1139} 1140 1141static int 1142open_dchannel(struct w6692_hw *card, struct channel_req *rq) 1143{ 1144 pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__, 1145 card->dch.dev.id, __builtin_return_address(1)); 1146 if (rq->protocol != ISDN_P_TE_S0) 1147 return -EINVAL; 1148 if (rq->adr.channel == 1) 1149 /* E-Channel not supported */ 1150 return -EINVAL; 1151 rq->ch = &card->dch.dev.D; 1152 rq->ch->protocol = rq->protocol; 1153 if (card->dch.state == 7) 1154 _queue_data(rq->ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 1155 0, NULL, GFP_KERNEL); 1156 return 0; 1157} 1158 1159static int 1160w6692_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg) 1161{ 1162 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); 1163 struct dchannel *dch = container_of(dev, struct dchannel, dev); 1164 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); 1165 struct channel_req *rq; 1166 int err = 0; 1167 1168 pr_debug("%s: DCTRL: %x %p\n", card->name, cmd, arg); 1169 switch (cmd) { 1170 case OPEN_CHANNEL: 1171 rq = arg; 1172 if (rq->protocol == ISDN_P_TE_S0) 1173 err = open_dchannel(card, rq); 1174 else 1175 err = open_bchannel(card, rq); 1176 if (err) 1177 break; 1178 if (!try_module_get(THIS_MODULE)) 1179 pr_info("%s: cannot get module\n", card->name); 1180 break; 1181 case CLOSE_CHANNEL: 1182 pr_debug("%s: dev(%d) close from %p\n", card->name, 1183 dch->dev.id, __builtin_return_address(0)); 1184 module_put(THIS_MODULE); 1185 break; 1186 case CONTROL_CHANNEL: 1187 err = channel_ctrl(card, arg); 1188 break; 1189 default: 1190 pr_debug("%s: unknown DCTRL command %x\n", card->name, cmd); 1191 return -EINVAL; 1192 } 1193 return err; 1194} 1195 1196static int 1197setup_w6692(struct w6692_hw *card) 1198{ 1199 u32 val; 1200 1201 if (!request_region(card->addr, 256, card->name)) { 1202 pr_info("%s: config port %x-%x already in use\n", card->name, 1203 card->addr, card->addr + 255); 1204 return -EIO; 1205 } 1206 W6692Version(card); 1207 card->bc[0].addr = card->addr; 1208 card->bc[1].addr = card->addr + 0x40; 1209 val = ReadW6692(card, W_ISTA); 1210 if (debug & DEBUG_HW) 1211 pr_notice("%s ISTA=%02x\n", card->name, val); 1212 val = ReadW6692(card, W_IMASK); 1213 if (debug & DEBUG_HW) 1214 pr_notice("%s IMASK=%02x\n", card->name, val); 1215 val = ReadW6692(card, W_D_EXIR); 1216 if (debug & DEBUG_HW) 1217 pr_notice("%s D_EXIR=%02x\n", card->name, val); 1218 val = ReadW6692(card, W_D_EXIM); 1219 if (debug & DEBUG_HW) 1220 pr_notice("%s D_EXIM=%02x\n", card->name, val); 1221 val = ReadW6692(card, W_D_RSTA); 1222 if (debug & DEBUG_HW) 1223 pr_notice("%s D_RSTA=%02x\n", card->name, val); 1224 return 0; 1225} 1226 1227static void 1228release_card(struct w6692_hw *card) 1229{ 1230 u_long flags; 1231 1232 spin_lock_irqsave(&card->lock, flags); 1233 disable_hwirq(card); 1234 w6692_mode(&card->bc[0], ISDN_P_NONE); 1235 w6692_mode(&card->bc[1], ISDN_P_NONE); 1236 if ((card->fmask & led) || card->subtype == W6692_USR) { 1237 card->xdata |= 0x04; /* LED OFF */ 1238 WriteW6692(card, W_XDATA, card->xdata); 1239 } 1240 spin_unlock_irqrestore(&card->lock, flags); 1241 free_irq(card->irq, card); 1242 l1_event(card->dch.l1, CLOSE_CHANNEL); 1243 mISDN_unregister_device(&card->dch.dev); 1244 release_region(card->addr, 256); 1245 mISDN_freebchannel(&card->bc[1].bch); 1246 mISDN_freebchannel(&card->bc[0].bch); 1247 mISDN_freedchannel(&card->dch); 1248 write_lock_irqsave(&card_lock, flags); 1249 list_del(&card->list); 1250 write_unlock_irqrestore(&card_lock, flags); 1251 pci_disable_device(card->pdev); 1252 pci_set_drvdata(card->pdev, NULL); 1253 kfree(card); 1254} 1255 1256static int 1257setup_instance(struct w6692_hw *card) 1258{ 1259 int i, err; 1260 u_long flags; 1261 1262 snprintf(card->name, MISDN_MAX_IDLEN - 1, "w6692.%d", w6692_cnt + 1); 1263 write_lock_irqsave(&card_lock, flags); 1264 list_add_tail(&card->list, &Cards); 1265 write_unlock_irqrestore(&card_lock, flags); 1266 card->fmask = (1 << w6692_cnt); 1267 _set_debug(card); 1268 spin_lock_init(&card->lock); 1269 mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, W6692_ph_bh); 1270 card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0); 1271 card->dch.dev.D.send = w6692_l2l1D; 1272 card->dch.dev.D.ctrl = w6692_dctrl; 1273 card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | 1274 (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); 1275 card->dch.hw = card; 1276 card->dch.dev.nrbchan = 2; 1277 for (i = 0; i < 2; i++) { 1278 mISDN_initbchannel(&card->bc[i].bch, MAX_DATA_MEM); 1279 card->bc[i].bch.hw = card; 1280 card->bc[i].bch.nr = i + 1; 1281 card->bc[i].bch.ch.nr = i + 1; 1282 card->bc[i].bch.ch.send = w6692_l2l1B; 1283 card->bc[i].bch.ch.ctrl = w6692_bctrl; 1284 set_channelmap(i + 1, card->dch.dev.channelmap); 1285 list_add(&card->bc[i].bch.ch.list, &card->dch.dev.bchannels); 1286 } 1287 err = setup_w6692(card); 1288 if (err) 1289 goto error_setup; 1290 err = mISDN_register_device(&card->dch.dev, &card->pdev->dev, 1291 card->name); 1292 if (err) 1293 goto error_reg; 1294 err = init_card(card); 1295 if (err) 1296 goto error_init; 1297 err = create_l1(&card->dch, w6692_l1callback); 1298 if (!err) { 1299 w6692_cnt++; 1300 pr_notice("W6692 %d cards installed\n", w6692_cnt); 1301 return 0; 1302 } 1303 1304 free_irq(card->irq, card); 1305error_init: 1306 mISDN_unregister_device(&card->dch.dev); 1307error_reg: 1308 release_region(card->addr, 256); 1309error_setup: 1310 mISDN_freebchannel(&card->bc[1].bch); 1311 mISDN_freebchannel(&card->bc[0].bch); 1312 mISDN_freedchannel(&card->dch); 1313 write_lock_irqsave(&card_lock, flags); 1314 list_del(&card->list); 1315 write_unlock_irqrestore(&card_lock, flags); 1316 kfree(card); 1317 return err; 1318} 1319 1320static int __devinit 1321w6692_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1322{ 1323 int err = -ENOMEM; 1324 struct w6692_hw *card; 1325 struct w6692map *m = (struct w6692map *)ent->driver_data; 1326 1327 card = kzalloc(sizeof(struct w6692_hw), GFP_KERNEL); 1328 if (!card) { 1329 pr_info("No kmem for w6692 card\n"); 1330 return err; 1331 } 1332 card->pdev = pdev; 1333 card->subtype = m->subtype; 1334 err = pci_enable_device(pdev); 1335 if (err) { 1336 kfree(card); 1337 return err; 1338 } 1339 1340 printk(KERN_INFO "mISDN_w6692: found adapter %s at %s\n", 1341 m->name, pci_name(pdev)); 1342 1343 card->addr = pci_resource_start(pdev, 1); 1344 card->irq = pdev->irq; 1345 pci_set_drvdata(pdev, card); 1346 err = setup_instance(card); 1347 if (err) 1348 pci_set_drvdata(pdev, NULL); 1349 return err; 1350} 1351 1352static void __devexit 1353w6692_remove_pci(struct pci_dev *pdev) 1354{ 1355 struct w6692_hw *card = pci_get_drvdata(pdev); 1356 1357 if (card) 1358 release_card(card); 1359 else 1360 if (debug) 1361 pr_notice("%s: drvdata already removed\n", __func__); 1362} 1363 1364static struct pci_device_id w6692_ids[] = { 1365 { PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH, 1366 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[0]}, 1367 { PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, 1368 PCI_VENDOR_ID_USR, PCI_DEVICE_ID_USR_6692, 0, 0, 1369 (ulong)&w6692_map[2]}, 1370 { PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, 1371 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[1]}, 1372 { } 1373}; 1374MODULE_DEVICE_TABLE(pci, w6692_ids); 1375 1376static struct pci_driver w6692_driver = { 1377 .name = "w6692", 1378 .probe = w6692_probe, 1379 .remove = __devexit_p(w6692_remove_pci), 1380 .id_table = w6692_ids, 1381}; 1382 1383static int __init w6692_init(void) 1384{ 1385 int err; 1386 1387 pr_notice("Winbond W6692 PCI driver Rev. %s\n", W6692_REV); 1388 1389 err = pci_register_driver(&w6692_driver); 1390 return err; 1391} 1392 1393static void __exit w6692_cleanup(void) 1394{ 1395 pci_unregister_driver(&w6692_driver); 1396} 1397 1398module_init(w6692_init); 1399module_exit(w6692_cleanup); 1400