1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * w6692.c mISDN driver for Winbond w6692 based cards 4 * 5 * Author Karsten Keil <kkeil@suse.de> 6 * based on the w6692 I4L driver from Petr Novak <petr.novak@i.cz> 7 * 8 * Copyright 2009 by Karsten Keil <keil@isdn4linux.de> 9 */ 10 11#include <linux/interrupt.h> 12#include <linux/module.h> 13#include <linux/pci.h> 14#include <linux/delay.h> 15#include <linux/mISDNhw.h> 16#include <linux/slab.h> 17#include "w6692.h" 18 19#define W6692_REV "2.0" 20 21#define DBUSY_TIMER_VALUE 80 22 23enum { 24 W6692_ASUS, 25 W6692_WINBOND, 26 W6692_USR 27}; 28 29/* private data in the PCI devices list */ 30struct w6692map { 31 u_int subtype; 32 char *name; 33}; 34 35static const struct w6692map w6692_map[] = 36{ 37 {W6692_ASUS, "Dynalink/AsusCom IS64PH"}, 38 {W6692_WINBOND, "Winbond W6692"}, 39 {W6692_USR, "USR W6692"} 40}; 41 42#define PCI_DEVICE_ID_USR_6692 0x3409 43 44struct w6692_ch { 45 struct bchannel bch; 46 u32 addr; 47 struct timer_list timer; 48 u8 b_mode; 49}; 50 51struct w6692_hw { 52 struct list_head list; 53 struct pci_dev *pdev; 54 char name[MISDN_MAX_IDLEN]; 55 u32 irq; 56 u32 irqcnt; 57 u32 addr; 58 u32 fmask; /* feature mask - bit set per card nr */ 59 int subtype; 60 spinlock_t lock; /* hw lock */ 61 u8 imask; 62 u8 pctl; 63 u8 xaddr; 64 u8 xdata; 65 u8 state; 66 struct w6692_ch bc[2]; 67 struct dchannel dch; 68 char log[64]; 69}; 70 71static LIST_HEAD(Cards); 72static DEFINE_RWLOCK(card_lock); /* protect Cards */ 73 74static int w6692_cnt; 75static int debug; 76static u32 led; 77static u32 pots; 78 79static void 80_set_debug(struct w6692_hw *card) 81{ 82 card->dch.debug = debug; 83 card->bc[0].bch.debug = debug; 84 card->bc[1].bch.debug = debug; 85} 86 87static int 88set_debug(const char *val, const struct kernel_param *kp) 89{ 90 int ret; 91 struct w6692_hw *card; 92 93 ret = param_set_uint(val, kp); 94 if (!ret) { 95 read_lock(&card_lock); 96 list_for_each_entry(card, &Cards, list) 97 _set_debug(card); 98 read_unlock(&card_lock); 99 } 100 return ret; 101} 102 103MODULE_AUTHOR("Karsten Keil"); 104MODULE_LICENSE("GPL v2"); 105MODULE_VERSION(W6692_REV); 106module_param_call(debug, set_debug, param_get_uint, &debug, S_IRUGO | S_IWUSR); 107MODULE_PARM_DESC(debug, "W6692 debug mask"); 108module_param(led, uint, S_IRUGO | S_IWUSR); 109MODULE_PARM_DESC(led, "W6692 LED support bitmask (one bit per card)"); 110module_param(pots, uint, S_IRUGO | S_IWUSR); 111MODULE_PARM_DESC(pots, "W6692 POTS support bitmask (one bit per card)"); 112 113static inline u8 114ReadW6692(struct w6692_hw *card, u8 offset) 115{ 116 return inb(card->addr + offset); 117} 118 119static inline void 120WriteW6692(struct w6692_hw *card, u8 offset, u8 value) 121{ 122 outb(value, card->addr + offset); 123} 124 125static inline u8 126ReadW6692B(struct w6692_ch *bc, u8 offset) 127{ 128 return inb(bc->addr + offset); 129} 130 131static inline void 132WriteW6692B(struct w6692_ch *bc, u8 offset, u8 value) 133{ 134 outb(value, bc->addr + offset); 135} 136 137static void 138enable_hwirq(struct w6692_hw *card) 139{ 140 WriteW6692(card, W_IMASK, card->imask); 141} 142 143static void 144disable_hwirq(struct w6692_hw *card) 145{ 146 WriteW6692(card, W_IMASK, 0xff); 147} 148 149static const char *W6692Ver[] = {"V00", "V01", "V10", "V11"}; 150 151static void 152W6692Version(struct w6692_hw *card) 153{ 154 int val; 155 156 val = ReadW6692(card, W_D_RBCH); 157 pr_notice("%s: Winbond W6692 version: %s\n", card->name, 158 W6692Ver[(val >> 6) & 3]); 159} 160 161static void 162w6692_led_handler(struct w6692_hw *card, int on) 163{ 164 if ((!(card->fmask & led)) || card->subtype == W6692_USR) 165 return; 166 if (on) { 167 card->xdata &= 0xfb; /* LED ON */ 168 WriteW6692(card, W_XDATA, card->xdata); 169 } else { 170 card->xdata |= 0x04; /* LED OFF */ 171 WriteW6692(card, W_XDATA, card->xdata); 172 } 173} 174 175static void 176ph_command(struct w6692_hw *card, u8 cmd) 177{ 178 pr_debug("%s: ph_command %x\n", card->name, cmd); 179 WriteW6692(card, W_CIX, cmd); 180} 181 182static void 183W6692_new_ph(struct w6692_hw *card) 184{ 185 if (card->state == W_L1CMD_RST) 186 ph_command(card, W_L1CMD_DRC); 187 schedule_event(&card->dch, FLG_PHCHANGE); 188} 189 190static void 191W6692_ph_bh(struct dchannel *dch) 192{ 193 struct w6692_hw *card = dch->hw; 194 195 switch (card->state) { 196 case W_L1CMD_RST: 197 dch->state = 0; 198 l1_event(dch->l1, HW_RESET_IND); 199 break; 200 case W_L1IND_CD: 201 dch->state = 3; 202 l1_event(dch->l1, HW_DEACT_CNF); 203 break; 204 case W_L1IND_DRD: 205 dch->state = 3; 206 l1_event(dch->l1, HW_DEACT_IND); 207 break; 208 case W_L1IND_CE: 209 dch->state = 4; 210 l1_event(dch->l1, HW_POWERUP_IND); 211 break; 212 case W_L1IND_LD: 213 if (dch->state <= 5) { 214 dch->state = 5; 215 l1_event(dch->l1, ANYSIGNAL); 216 } else { 217 dch->state = 8; 218 l1_event(dch->l1, LOSTFRAMING); 219 } 220 break; 221 case W_L1IND_ARD: 222 dch->state = 6; 223 l1_event(dch->l1, INFO2); 224 break; 225 case W_L1IND_AI8: 226 dch->state = 7; 227 l1_event(dch->l1, INFO4_P8); 228 break; 229 case W_L1IND_AI10: 230 dch->state = 7; 231 l1_event(dch->l1, INFO4_P10); 232 break; 233 default: 234 pr_debug("%s: TE unknown state %02x dch state %02x\n", 235 card->name, card->state, dch->state); 236 break; 237 } 238 pr_debug("%s: TE newstate %02x\n", card->name, dch->state); 239} 240 241static void 242W6692_empty_Dfifo(struct w6692_hw *card, int count) 243{ 244 struct dchannel *dch = &card->dch; 245 u8 *ptr; 246 247 pr_debug("%s: empty_Dfifo %d\n", card->name, count); 248 if (!dch->rx_skb) { 249 dch->rx_skb = mI_alloc_skb(card->dch.maxlen, GFP_ATOMIC); 250 if (!dch->rx_skb) { 251 pr_info("%s: D receive out of memory\n", card->name); 252 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); 253 return; 254 } 255 } 256 if ((dch->rx_skb->len + count) >= dch->maxlen) { 257 pr_debug("%s: empty_Dfifo overrun %d\n", card->name, 258 dch->rx_skb->len + count); 259 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); 260 return; 261 } 262 ptr = skb_put(dch->rx_skb, count); 263 insb(card->addr + W_D_RFIFO, ptr, count); 264 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); 265 if (debug & DEBUG_HW_DFIFO) { 266 snprintf(card->log, 63, "D-recv %s %d ", 267 card->name, count); 268 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); 269 } 270} 271 272static void 273W6692_fill_Dfifo(struct w6692_hw *card) 274{ 275 struct dchannel *dch = &card->dch; 276 int count; 277 u8 *ptr; 278 u8 cmd = W_D_CMDR_XMS; 279 280 pr_debug("%s: fill_Dfifo\n", card->name); 281 if (!dch->tx_skb) 282 return; 283 count = dch->tx_skb->len - dch->tx_idx; 284 if (count <= 0) 285 return; 286 if (count > W_D_FIFO_THRESH) 287 count = W_D_FIFO_THRESH; 288 else 289 cmd |= W_D_CMDR_XME; 290 ptr = dch->tx_skb->data + dch->tx_idx; 291 dch->tx_idx += count; 292 outsb(card->addr + W_D_XFIFO, ptr, count); 293 WriteW6692(card, W_D_CMDR, cmd); 294 if (test_and_set_bit(FLG_BUSY_TIMER, &dch->Flags)) { 295 pr_debug("%s: fill_Dfifo dbusytimer running\n", card->name); 296 del_timer(&dch->timer); 297 } 298 dch->timer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ) / 1000); 299 add_timer(&dch->timer); 300 if (debug & DEBUG_HW_DFIFO) { 301 snprintf(card->log, 63, "D-send %s %d ", 302 card->name, count); 303 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); 304 } 305} 306 307static void 308d_retransmit(struct w6692_hw *card) 309{ 310 struct dchannel *dch = &card->dch; 311 312 if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) 313 del_timer(&dch->timer); 314#ifdef FIXME 315 if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags)) 316 dchannel_sched_event(dch, D_CLEARBUSY); 317#endif 318 if (test_bit(FLG_TX_BUSY, &dch->Flags)) { 319 /* Restart frame */ 320 dch->tx_idx = 0; 321 W6692_fill_Dfifo(card); 322 } else if (dch->tx_skb) { /* should not happen */ 323 pr_info("%s: %s without TX_BUSY\n", card->name, __func__); 324 test_and_set_bit(FLG_TX_BUSY, &dch->Flags); 325 dch->tx_idx = 0; 326 W6692_fill_Dfifo(card); 327 } else { 328 pr_info("%s: XDU no TX_BUSY\n", card->name); 329 if (get_next_dframe(dch)) 330 W6692_fill_Dfifo(card); 331 } 332} 333 334static void 335handle_rxD(struct w6692_hw *card) { 336 u8 stat; 337 int count; 338 339 stat = ReadW6692(card, W_D_RSTA); 340 if (stat & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) { 341 if (stat & W_D_RSTA_RDOV) { 342 pr_debug("%s: D-channel RDOV\n", card->name); 343#ifdef ERROR_STATISTIC 344 card->dch.err_rx++; 345#endif 346 } 347 if (stat & W_D_RSTA_CRCE) { 348 pr_debug("%s: D-channel CRC error\n", card->name); 349#ifdef ERROR_STATISTIC 350 card->dch.err_crc++; 351#endif 352 } 353 if (stat & W_D_RSTA_RMB) { 354 pr_debug("%s: D-channel ABORT\n", card->name); 355#ifdef ERROR_STATISTIC 356 card->dch.err_rx++; 357#endif 358 } 359 dev_kfree_skb(card->dch.rx_skb); 360 card->dch.rx_skb = NULL; 361 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST); 362 } else { 363 count = ReadW6692(card, W_D_RBCL) & (W_D_FIFO_THRESH - 1); 364 if (count == 0) 365 count = W_D_FIFO_THRESH; 366 W6692_empty_Dfifo(card, count); 367 recv_Dchannel(&card->dch); 368 } 369} 370 371static void 372handle_txD(struct w6692_hw *card) { 373 if (test_and_clear_bit(FLG_BUSY_TIMER, &card->dch.Flags)) 374 del_timer(&card->dch.timer); 375 if (card->dch.tx_skb && card->dch.tx_idx < card->dch.tx_skb->len) { 376 W6692_fill_Dfifo(card); 377 } else { 378 dev_kfree_skb(card->dch.tx_skb); 379 if (get_next_dframe(&card->dch)) 380 W6692_fill_Dfifo(card); 381 } 382} 383 384static void 385handle_statusD(struct w6692_hw *card) 386{ 387 struct dchannel *dch = &card->dch; 388 u8 exval, v1, cir; 389 390 exval = ReadW6692(card, W_D_EXIR); 391 392 pr_debug("%s: D_EXIR %02x\n", card->name, exval); 393 if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) { 394 /* Transmit underrun/collision */ 395 pr_debug("%s: D-channel underrun/collision\n", card->name); 396#ifdef ERROR_STATISTIC 397 dch->err_tx++; 398#endif 399 d_retransmit(card); 400 } 401 if (exval & W_D_EXI_RDOV) { /* RDOV */ 402 pr_debug("%s: D-channel RDOV\n", card->name); 403 WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST); 404 } 405 if (exval & W_D_EXI_TIN2) /* TIN2 - never */ 406 pr_debug("%s: spurious TIN2 interrupt\n", card->name); 407 if (exval & W_D_EXI_MOC) { /* MOC - not supported */ 408 v1 = ReadW6692(card, W_MOSR); 409 pr_debug("%s: spurious MOC interrupt MOSR %02x\n", 410 card->name, v1); 411 } 412 if (exval & W_D_EXI_ISC) { /* ISC - Level1 change */ 413 cir = ReadW6692(card, W_CIR); 414 pr_debug("%s: ISC CIR %02X\n", card->name, cir); 415 if (cir & W_CIR_ICC) { 416 v1 = cir & W_CIR_COD_MASK; 417 pr_debug("%s: ph_state_change %x -> %x\n", card->name, 418 dch->state, v1); 419 card->state = v1; 420 if (card->fmask & led) { 421 switch (v1) { 422 case W_L1IND_AI8: 423 case W_L1IND_AI10: 424 w6692_led_handler(card, 1); 425 break; 426 default: 427 w6692_led_handler(card, 0); 428 break; 429 } 430 } 431 W6692_new_ph(card); 432 } 433 if (cir & W_CIR_SCC) { 434 v1 = ReadW6692(card, W_SQR); 435 pr_debug("%s: SCC SQR %02X\n", card->name, v1); 436 } 437 } 438 if (exval & W_D_EXI_WEXP) 439 pr_debug("%s: spurious WEXP interrupt!\n", card->name); 440 if (exval & W_D_EXI_TEXP) 441 pr_debug("%s: spurious TEXP interrupt!\n", card->name); 442} 443 444static void 445W6692_empty_Bfifo(struct w6692_ch *wch, int count) 446{ 447 struct w6692_hw *card = wch->bch.hw; 448 u8 *ptr; 449 int maxlen; 450 451 pr_debug("%s: empty_Bfifo %d\n", card->name, count); 452 if (unlikely(wch->bch.state == ISDN_P_NONE)) { 453 pr_debug("%s: empty_Bfifo ISDN_P_NONE\n", card->name); 454 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); 455 if (wch->bch.rx_skb) 456 skb_trim(wch->bch.rx_skb, 0); 457 return; 458 } 459 if (test_bit(FLG_RX_OFF, &wch->bch.Flags)) { 460 wch->bch.dropcnt += count; 461 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); 462 return; 463 } 464 maxlen = bchannel_get_rxbuf(&wch->bch, count); 465 if (maxlen < 0) { 466 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); 467 if (wch->bch.rx_skb) 468 skb_trim(wch->bch.rx_skb, 0); 469 pr_warn("%s.B%d: No bufferspace for %d bytes\n", 470 card->name, wch->bch.nr, count); 471 return; 472 } 473 ptr = skb_put(wch->bch.rx_skb, count); 474 insb(wch->addr + W_B_RFIFO, ptr, count); 475 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); 476 if (debug & DEBUG_HW_DFIFO) { 477 snprintf(card->log, 63, "B%1d-recv %s %d ", 478 wch->bch.nr, card->name, count); 479 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); 480 } 481} 482 483static void 484W6692_fill_Bfifo(struct w6692_ch *wch) 485{ 486 struct w6692_hw *card = wch->bch.hw; 487 int count, fillempty = 0; 488 u8 *ptr, cmd = W_B_CMDR_RACT | W_B_CMDR_XMS; 489 490 pr_debug("%s: fill Bfifo\n", card->name); 491 if (!wch->bch.tx_skb) { 492 if (!test_bit(FLG_TX_EMPTY, &wch->bch.Flags)) 493 return; 494 ptr = wch->bch.fill; 495 count = W_B_FIFO_THRESH; 496 fillempty = 1; 497 } else { 498 count = wch->bch.tx_skb->len - wch->bch.tx_idx; 499 if (count <= 0) 500 return; 501 ptr = wch->bch.tx_skb->data + wch->bch.tx_idx; 502 } 503 if (count > W_B_FIFO_THRESH) 504 count = W_B_FIFO_THRESH; 505 else if (test_bit(FLG_HDLC, &wch->bch.Flags)) 506 cmd |= W_B_CMDR_XME; 507 508 pr_debug("%s: fill Bfifo%d/%d\n", card->name, 509 count, wch->bch.tx_idx); 510 wch->bch.tx_idx += count; 511 if (fillempty) { 512 while (count > 0) { 513 outsb(wch->addr + W_B_XFIFO, ptr, MISDN_BCH_FILL_SIZE); 514 count -= MISDN_BCH_FILL_SIZE; 515 } 516 } else { 517 outsb(wch->addr + W_B_XFIFO, ptr, count); 518 } 519 WriteW6692B(wch, W_B_CMDR, cmd); 520 if ((debug & DEBUG_HW_BFIFO) && !fillempty) { 521 snprintf(card->log, 63, "B%1d-send %s %d ", 522 wch->bch.nr, card->name, count); 523 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); 524 } 525} 526 527#if 0 528static int 529setvolume(struct w6692_ch *wch, int mic, struct sk_buff *skb) 530{ 531 struct w6692_hw *card = wch->bch.hw; 532 u16 *vol = (u16 *)skb->data; 533 u8 val; 534 535 if ((!(card->fmask & pots)) || 536 !test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) 537 return -ENODEV; 538 if (skb->len < 2) 539 return -EINVAL; 540 if (*vol > 7) 541 return -EINVAL; 542 val = *vol & 7; 543 val = 7 - val; 544 if (mic) { 545 val <<= 3; 546 card->xaddr &= 0xc7; 547 } else { 548 card->xaddr &= 0xf8; 549 } 550 card->xaddr |= val; 551 WriteW6692(card, W_XADDR, card->xaddr); 552 return 0; 553} 554 555static int 556enable_pots(struct w6692_ch *wch) 557{ 558 struct w6692_hw *card = wch->bch.hw; 559 560 if ((!(card->fmask & pots)) || 561 !test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) 562 return -ENODEV; 563 wch->b_mode |= W_B_MODE_EPCM | W_B_MODE_BSW0; 564 WriteW6692B(wch, W_B_MODE, wch->b_mode); 565 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); 566 card->pctl |= ((wch->bch.nr & 2) ? W_PCTL_PCX : 0); 567 WriteW6692(card, W_PCTL, card->pctl); 568 return 0; 569} 570#endif 571 572static int 573disable_pots(struct w6692_ch *wch) 574{ 575 struct w6692_hw *card = wch->bch.hw; 576 577 if (!(card->fmask & pots)) 578 return -ENODEV; 579 wch->b_mode &= ~(W_B_MODE_EPCM | W_B_MODE_BSW0); 580 WriteW6692B(wch, W_B_MODE, wch->b_mode); 581 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | 582 W_B_CMDR_XRST); 583 return 0; 584} 585 586static int 587w6692_mode(struct w6692_ch *wch, u32 pr) 588{ 589 struct w6692_hw *card; 590 591 card = wch->bch.hw; 592 pr_debug("%s: B%d protocol %x-->%x\n", card->name, 593 wch->bch.nr, wch->bch.state, pr); 594 switch (pr) { 595 case ISDN_P_NONE: 596 if ((card->fmask & pots) && (wch->b_mode & W_B_MODE_EPCM)) 597 disable_pots(wch); 598 wch->b_mode = 0; 599 mISDN_clear_bchannel(&wch->bch); 600 WriteW6692B(wch, W_B_MODE, wch->b_mode); 601 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); 602 test_and_clear_bit(FLG_HDLC, &wch->bch.Flags); 603 test_and_clear_bit(FLG_TRANSPARENT, &wch->bch.Flags); 604 break; 605 case ISDN_P_B_RAW: 606 wch->b_mode = W_B_MODE_MMS; 607 WriteW6692B(wch, W_B_MODE, wch->b_mode); 608 WriteW6692B(wch, W_B_EXIM, 0); 609 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | 610 W_B_CMDR_XRST); 611 test_and_set_bit(FLG_TRANSPARENT, &wch->bch.Flags); 612 break; 613 case ISDN_P_B_HDLC: 614 wch->b_mode = W_B_MODE_ITF; 615 WriteW6692B(wch, W_B_MODE, wch->b_mode); 616 WriteW6692B(wch, W_B_ADM1, 0xff); 617 WriteW6692B(wch, W_B_ADM2, 0xff); 618 WriteW6692B(wch, W_B_EXIM, 0); 619 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | 620 W_B_CMDR_XRST); 621 test_and_set_bit(FLG_HDLC, &wch->bch.Flags); 622 break; 623 default: 624 pr_info("%s: protocol %x not known\n", card->name, pr); 625 return -ENOPROTOOPT; 626 } 627 wch->bch.state = pr; 628 return 0; 629} 630 631static void 632send_next(struct w6692_ch *wch) 633{ 634 if (wch->bch.tx_skb && wch->bch.tx_idx < wch->bch.tx_skb->len) { 635 W6692_fill_Bfifo(wch); 636 } else { 637 dev_kfree_skb(wch->bch.tx_skb); 638 if (get_next_bframe(&wch->bch)) { 639 W6692_fill_Bfifo(wch); 640 test_and_clear_bit(FLG_TX_EMPTY, &wch->bch.Flags); 641 } else if (test_bit(FLG_TX_EMPTY, &wch->bch.Flags)) { 642 W6692_fill_Bfifo(wch); 643 } 644 } 645} 646 647static void 648W6692B_interrupt(struct w6692_hw *card, int ch) 649{ 650 struct w6692_ch *wch = &card->bc[ch]; 651 int count; 652 u8 stat, star = 0; 653 654 stat = ReadW6692B(wch, W_B_EXIR); 655 pr_debug("%s: B%d EXIR %02x\n", card->name, wch->bch.nr, stat); 656 if (stat & W_B_EXI_RME) { 657 star = ReadW6692B(wch, W_B_STAR); 658 if (star & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) { 659 if ((star & W_B_STAR_RDOV) && 660 test_bit(FLG_ACTIVE, &wch->bch.Flags)) { 661 pr_debug("%s: B%d RDOV proto=%x\n", card->name, 662 wch->bch.nr, wch->bch.state); 663#ifdef ERROR_STATISTIC 664 wch->bch.err_rdo++; 665#endif 666 } 667 if (test_bit(FLG_HDLC, &wch->bch.Flags)) { 668 if (star & W_B_STAR_CRCE) { 669 pr_debug("%s: B%d CRC error\n", 670 card->name, wch->bch.nr); 671#ifdef ERROR_STATISTIC 672 wch->bch.err_crc++; 673#endif 674 } 675 if (star & W_B_STAR_RMB) { 676 pr_debug("%s: B%d message abort\n", 677 card->name, wch->bch.nr); 678#ifdef ERROR_STATISTIC 679 wch->bch.err_inv++; 680#endif 681 } 682 } 683 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | 684 W_B_CMDR_RRST | W_B_CMDR_RACT); 685 if (wch->bch.rx_skb) 686 skb_trim(wch->bch.rx_skb, 0); 687 } else { 688 count = ReadW6692B(wch, W_B_RBCL) & 689 (W_B_FIFO_THRESH - 1); 690 if (count == 0) 691 count = W_B_FIFO_THRESH; 692 W6692_empty_Bfifo(wch, count); 693 recv_Bchannel(&wch->bch, 0, false); 694 } 695 } 696 if (stat & W_B_EXI_RMR) { 697 if (!(stat & W_B_EXI_RME)) 698 star = ReadW6692B(wch, W_B_STAR); 699 if (star & W_B_STAR_RDOV) { 700 pr_debug("%s: B%d RDOV proto=%x\n", card->name, 701 wch->bch.nr, wch->bch.state); 702#ifdef ERROR_STATISTIC 703 wch->bch.err_rdo++; 704#endif 705 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | 706 W_B_CMDR_RRST | W_B_CMDR_RACT); 707 } else { 708 W6692_empty_Bfifo(wch, W_B_FIFO_THRESH); 709 if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) 710 recv_Bchannel(&wch->bch, 0, false); 711 } 712 } 713 if (stat & W_B_EXI_RDOV) { 714 /* only if it is not handled yet */ 715 if (!(star & W_B_STAR_RDOV)) { 716 pr_debug("%s: B%d RDOV IRQ proto=%x\n", card->name, 717 wch->bch.nr, wch->bch.state); 718#ifdef ERROR_STATISTIC 719 wch->bch.err_rdo++; 720#endif 721 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | 722 W_B_CMDR_RRST | W_B_CMDR_RACT); 723 } 724 } 725 if (stat & W_B_EXI_XFR) { 726 if (!(stat & (W_B_EXI_RME | W_B_EXI_RMR))) { 727 star = ReadW6692B(wch, W_B_STAR); 728 pr_debug("%s: B%d star %02x\n", card->name, 729 wch->bch.nr, star); 730 } 731 if (star & W_B_STAR_XDOW) { 732 pr_warn("%s: B%d XDOW proto=%x\n", card->name, 733 wch->bch.nr, wch->bch.state); 734#ifdef ERROR_STATISTIC 735 wch->bch.err_xdu++; 736#endif 737 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST | 738 W_B_CMDR_RACT); 739 /* resend */ 740 if (wch->bch.tx_skb) { 741 if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) 742 wch->bch.tx_idx = 0; 743 } 744 } 745 send_next(wch); 746 if (star & W_B_STAR_XDOW) 747 return; /* handle XDOW only once */ 748 } 749 if (stat & W_B_EXI_XDUN) { 750 pr_warn("%s: B%d XDUN proto=%x\n", card->name, 751 wch->bch.nr, wch->bch.state); 752#ifdef ERROR_STATISTIC 753 wch->bch.err_xdu++; 754#endif 755 /* resend - no XRST needed */ 756 if (wch->bch.tx_skb) { 757 if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) 758 wch->bch.tx_idx = 0; 759 } else if (test_bit(FLG_FILLEMPTY, &wch->bch.Flags)) { 760 test_and_set_bit(FLG_TX_EMPTY, &wch->bch.Flags); 761 } 762 send_next(wch); 763 } 764} 765 766static irqreturn_t 767w6692_irq(int intno, void *dev_id) 768{ 769 struct w6692_hw *card = dev_id; 770 u8 ista; 771 772 spin_lock(&card->lock); 773 ista = ReadW6692(card, W_ISTA); 774 if ((ista | card->imask) == card->imask) { 775 /* possible a shared IRQ reqest */ 776 spin_unlock(&card->lock); 777 return IRQ_NONE; 778 } 779 card->irqcnt++; 780 pr_debug("%s: ista %02x\n", card->name, ista); 781 ista &= ~card->imask; 782 if (ista & W_INT_B1_EXI) 783 W6692B_interrupt(card, 0); 784 if (ista & W_INT_B2_EXI) 785 W6692B_interrupt(card, 1); 786 if (ista & W_INT_D_RME) 787 handle_rxD(card); 788 if (ista & W_INT_D_RMR) 789 W6692_empty_Dfifo(card, W_D_FIFO_THRESH); 790 if (ista & W_INT_D_XFR) 791 handle_txD(card); 792 if (ista & W_INT_D_EXI) 793 handle_statusD(card); 794 if (ista & (W_INT_XINT0 | W_INT_XINT1)) /* XINT0/1 - never */ 795 pr_debug("%s: W6692 spurious XINT!\n", card->name); 796/* End IRQ Handler */ 797 spin_unlock(&card->lock); 798 return IRQ_HANDLED; 799} 800 801static void 802dbusy_timer_handler(struct timer_list *t) 803{ 804 struct dchannel *dch = from_timer(dch, t, timer); 805 struct w6692_hw *card = dch->hw; 806 int rbch, star; 807 u_long flags; 808 809 if (test_bit(FLG_BUSY_TIMER, &dch->Flags)) { 810 spin_lock_irqsave(&card->lock, flags); 811 rbch = ReadW6692(card, W_D_RBCH); 812 star = ReadW6692(card, W_D_STAR); 813 pr_debug("%s: D-Channel Busy RBCH %02x STAR %02x\n", 814 card->name, rbch, star); 815 if (star & W_D_STAR_XBZ) /* D-Channel Busy */ 816 test_and_set_bit(FLG_L1_BUSY, &dch->Flags); 817 else { 818 /* discard frame; reset transceiver */ 819 test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags); 820 if (dch->tx_idx) 821 dch->tx_idx = 0; 822 else 823 pr_info("%s: W6692 D-Channel Busy no tx_idx\n", 824 card->name); 825 /* Transmitter reset */ 826 WriteW6692(card, W_D_CMDR, W_D_CMDR_XRST); 827 } 828 spin_unlock_irqrestore(&card->lock, flags); 829 } 830} 831 832static void initW6692(struct w6692_hw *card) 833{ 834 u8 val; 835 836 timer_setup(&card->dch.timer, dbusy_timer_handler, 0); 837 w6692_mode(&card->bc[0], ISDN_P_NONE); 838 w6692_mode(&card->bc[1], ISDN_P_NONE); 839 WriteW6692(card, W_D_CTL, 0x00); 840 disable_hwirq(card); 841 WriteW6692(card, W_D_SAM, 0xff); 842 WriteW6692(card, W_D_TAM, 0xff); 843 WriteW6692(card, W_D_MODE, W_D_MODE_RACT); 844 card->state = W_L1CMD_RST; 845 ph_command(card, W_L1CMD_RST); 846 ph_command(card, W_L1CMD_ECK); 847 /* enable all IRQ but extern */ 848 card->imask = 0x18; 849 WriteW6692(card, W_D_EXIM, 0x00); 850 WriteW6692B(&card->bc[0], W_B_EXIM, 0); 851 WriteW6692B(&card->bc[1], W_B_EXIM, 0); 852 /* Reset D-chan receiver and transmitter */ 853 WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST); 854 /* Reset B-chan receiver and transmitter */ 855 WriteW6692B(&card->bc[0], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); 856 WriteW6692B(&card->bc[1], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); 857 /* enable peripheral */ 858 if (card->subtype == W6692_USR) { 859 /* seems that USR implemented some power control features 860 * Pin 79 is connected to the oscilator circuit so we 861 * have to handle it here 862 */ 863 card->pctl = 0x80; 864 card->xdata = 0; 865 WriteW6692(card, W_PCTL, card->pctl); 866 WriteW6692(card, W_XDATA, card->xdata); 867 } else { 868 card->pctl = W_PCTL_OE5 | W_PCTL_OE4 | W_PCTL_OE2 | 869 W_PCTL_OE1 | W_PCTL_OE0; 870 card->xaddr = 0x00;/* all sw off */ 871 if (card->fmask & pots) 872 card->xdata |= 0x06; /* POWER UP/ LED OFF / ALAW */ 873 if (card->fmask & led) 874 card->xdata |= 0x04; /* LED OFF */ 875 if ((card->fmask & pots) || (card->fmask & led)) { 876 WriteW6692(card, W_PCTL, card->pctl); 877 WriteW6692(card, W_XADDR, card->xaddr); 878 WriteW6692(card, W_XDATA, card->xdata); 879 val = ReadW6692(card, W_XADDR); 880 if (debug & DEBUG_HW) 881 pr_notice("%s: W_XADDR=%02x\n", 882 card->name, val); 883 } 884 } 885} 886 887static void 888reset_w6692(struct w6692_hw *card) 889{ 890 WriteW6692(card, W_D_CTL, W_D_CTL_SRST); 891 mdelay(10); 892 WriteW6692(card, W_D_CTL, 0); 893} 894 895static int 896init_card(struct w6692_hw *card) 897{ 898 int cnt = 3; 899 u_long flags; 900 901 spin_lock_irqsave(&card->lock, flags); 902 disable_hwirq(card); 903 spin_unlock_irqrestore(&card->lock, flags); 904 if (request_irq(card->irq, w6692_irq, IRQF_SHARED, card->name, card)) { 905 pr_info("%s: couldn't get interrupt %d\n", card->name, 906 card->irq); 907 return -EIO; 908 } 909 while (cnt--) { 910 spin_lock_irqsave(&card->lock, flags); 911 initW6692(card); 912 enable_hwirq(card); 913 spin_unlock_irqrestore(&card->lock, flags); 914 /* Timeout 10ms */ 915 msleep_interruptible(10); 916 if (debug & DEBUG_HW) 917 pr_notice("%s: IRQ %d count %d\n", card->name, 918 card->irq, card->irqcnt); 919 if (!card->irqcnt) { 920 pr_info("%s: IRQ(%d) getting no IRQs during init %d\n", 921 card->name, card->irq, 3 - cnt); 922 reset_w6692(card); 923 } else 924 return 0; 925 } 926 free_irq(card->irq, card); 927 return -EIO; 928} 929 930static int 931w6692_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb) 932{ 933 struct bchannel *bch = container_of(ch, struct bchannel, ch); 934 struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch); 935 struct w6692_hw *card = bch->hw; 936 int ret = -EINVAL; 937 struct mISDNhead *hh = mISDN_HEAD_P(skb); 938 unsigned long flags; 939 940 switch (hh->prim) { 941 case PH_DATA_REQ: 942 spin_lock_irqsave(&card->lock, flags); 943 ret = bchannel_senddata(bch, skb); 944 if (ret > 0) { /* direct TX */ 945 ret = 0; 946 W6692_fill_Bfifo(bc); 947 } 948 spin_unlock_irqrestore(&card->lock, flags); 949 return ret; 950 case PH_ACTIVATE_REQ: 951 spin_lock_irqsave(&card->lock, flags); 952 if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) 953 ret = w6692_mode(bc, ch->protocol); 954 else 955 ret = 0; 956 spin_unlock_irqrestore(&card->lock, flags); 957 if (!ret) 958 _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0, 959 NULL, GFP_KERNEL); 960 break; 961 case PH_DEACTIVATE_REQ: 962 spin_lock_irqsave(&card->lock, flags); 963 mISDN_clear_bchannel(bch); 964 w6692_mode(bc, ISDN_P_NONE); 965 spin_unlock_irqrestore(&card->lock, flags); 966 _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0, 967 NULL, GFP_KERNEL); 968 ret = 0; 969 break; 970 default: 971 pr_info("%s: %s unknown prim(%x,%x)\n", 972 card->name, __func__, hh->prim, hh->id); 973 ret = -EINVAL; 974 } 975 if (!ret) 976 dev_kfree_skb(skb); 977 return ret; 978} 979 980static int 981channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) 982{ 983 return mISDN_ctrl_bchannel(bch, cq); 984} 985 986static int 987open_bchannel(struct w6692_hw *card, struct channel_req *rq) 988{ 989 struct bchannel *bch; 990 991 if (rq->adr.channel == 0 || rq->adr.channel > 2) 992 return -EINVAL; 993 if (rq->protocol == ISDN_P_NONE) 994 return -EINVAL; 995 bch = &card->bc[rq->adr.channel - 1].bch; 996 if (test_and_set_bit(FLG_OPEN, &bch->Flags)) 997 return -EBUSY; /* b-channel can be only open once */ 998 bch->ch.protocol = rq->protocol; 999 rq->ch = &bch->ch; 1000 return 0; 1001} 1002 1003static int 1004channel_ctrl(struct w6692_hw *card, struct mISDN_ctrl_req *cq) 1005{ 1006 int ret = 0; 1007 1008 switch (cq->op) { 1009 case MISDN_CTRL_GETOP: 1010 cq->op = MISDN_CTRL_L1_TIMER3; 1011 break; 1012 case MISDN_CTRL_L1_TIMER3: 1013 ret = l1_event(card->dch.l1, HW_TIMER3_VALUE | (cq->p1 & 0xff)); 1014 break; 1015 default: 1016 pr_info("%s: unknown CTRL OP %x\n", card->name, cq->op); 1017 ret = -EINVAL; 1018 break; 1019 } 1020 return ret; 1021} 1022 1023static int 1024w6692_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg) 1025{ 1026 struct bchannel *bch = container_of(ch, struct bchannel, ch); 1027 struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch); 1028 struct w6692_hw *card = bch->hw; 1029 int ret = -EINVAL; 1030 u_long flags; 1031 1032 pr_debug("%s: %s cmd:%x %p\n", card->name, __func__, cmd, arg); 1033 switch (cmd) { 1034 case CLOSE_CHANNEL: 1035 test_and_clear_bit(FLG_OPEN, &bch->Flags); 1036 cancel_work_sync(&bch->workq); 1037 spin_lock_irqsave(&card->lock, flags); 1038 mISDN_clear_bchannel(bch); 1039 w6692_mode(bc, ISDN_P_NONE); 1040 spin_unlock_irqrestore(&card->lock, flags); 1041 ch->protocol = ISDN_P_NONE; 1042 ch->peer = NULL; 1043 module_put(THIS_MODULE); 1044 ret = 0; 1045 break; 1046 case CONTROL_CHANNEL: 1047 ret = channel_bctrl(bch, arg); 1048 break; 1049 default: 1050 pr_info("%s: %s unknown prim(%x)\n", 1051 card->name, __func__, cmd); 1052 } 1053 return ret; 1054} 1055 1056static int 1057w6692_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb) 1058{ 1059 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); 1060 struct dchannel *dch = container_of(dev, struct dchannel, dev); 1061 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); 1062 int ret = -EINVAL; 1063 struct mISDNhead *hh = mISDN_HEAD_P(skb); 1064 u32 id; 1065 u_long flags; 1066 1067 switch (hh->prim) { 1068 case PH_DATA_REQ: 1069 spin_lock_irqsave(&card->lock, flags); 1070 ret = dchannel_senddata(dch, skb); 1071 if (ret > 0) { /* direct TX */ 1072 id = hh->id; /* skb can be freed */ 1073 W6692_fill_Dfifo(card); 1074 ret = 0; 1075 spin_unlock_irqrestore(&card->lock, flags); 1076 queue_ch_frame(ch, PH_DATA_CNF, id, NULL); 1077 } else 1078 spin_unlock_irqrestore(&card->lock, flags); 1079 return ret; 1080 case PH_ACTIVATE_REQ: 1081 ret = l1_event(dch->l1, hh->prim); 1082 break; 1083 case PH_DEACTIVATE_REQ: 1084 test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); 1085 ret = l1_event(dch->l1, hh->prim); 1086 break; 1087 } 1088 1089 if (!ret) 1090 dev_kfree_skb(skb); 1091 return ret; 1092} 1093 1094static int 1095w6692_l1callback(struct dchannel *dch, u32 cmd) 1096{ 1097 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); 1098 u_long flags; 1099 1100 pr_debug("%s: cmd(%x) state(%02x)\n", card->name, cmd, card->state); 1101 switch (cmd) { 1102 case INFO3_P8: 1103 spin_lock_irqsave(&card->lock, flags); 1104 ph_command(card, W_L1CMD_AR8); 1105 spin_unlock_irqrestore(&card->lock, flags); 1106 break; 1107 case INFO3_P10: 1108 spin_lock_irqsave(&card->lock, flags); 1109 ph_command(card, W_L1CMD_AR10); 1110 spin_unlock_irqrestore(&card->lock, flags); 1111 break; 1112 case HW_RESET_REQ: 1113 spin_lock_irqsave(&card->lock, flags); 1114 if (card->state != W_L1IND_DRD) 1115 ph_command(card, W_L1CMD_RST); 1116 ph_command(card, W_L1CMD_ECK); 1117 spin_unlock_irqrestore(&card->lock, flags); 1118 break; 1119 case HW_DEACT_REQ: 1120 skb_queue_purge(&dch->squeue); 1121 if (dch->tx_skb) { 1122 dev_kfree_skb(dch->tx_skb); 1123 dch->tx_skb = NULL; 1124 } 1125 dch->tx_idx = 0; 1126 if (dch->rx_skb) { 1127 dev_kfree_skb(dch->rx_skb); 1128 dch->rx_skb = NULL; 1129 } 1130 test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); 1131 if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) 1132 del_timer(&dch->timer); 1133 break; 1134 case HW_POWERUP_REQ: 1135 spin_lock_irqsave(&card->lock, flags); 1136 ph_command(card, W_L1CMD_ECK); 1137 spin_unlock_irqrestore(&card->lock, flags); 1138 break; 1139 case PH_ACTIVATE_IND: 1140 test_and_set_bit(FLG_ACTIVE, &dch->Flags); 1141 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, 1142 GFP_ATOMIC); 1143 break; 1144 case PH_DEACTIVATE_IND: 1145 test_and_clear_bit(FLG_ACTIVE, &dch->Flags); 1146 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, 1147 GFP_ATOMIC); 1148 break; 1149 default: 1150 pr_debug("%s: %s unknown command %x\n", card->name, 1151 __func__, cmd); 1152 return -1; 1153 } 1154 return 0; 1155} 1156 1157static int 1158open_dchannel(struct w6692_hw *card, struct channel_req *rq, void *caller) 1159{ 1160 pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__, 1161 card->dch.dev.id, caller); 1162 if (rq->protocol != ISDN_P_TE_S0) 1163 return -EINVAL; 1164 if (rq->adr.channel == 1) 1165 /* E-Channel not supported */ 1166 return -EINVAL; 1167 rq->ch = &card->dch.dev.D; 1168 rq->ch->protocol = rq->protocol; 1169 if (card->dch.state == 7) 1170 _queue_data(rq->ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 1171 0, NULL, GFP_KERNEL); 1172 return 0; 1173} 1174 1175static int 1176w6692_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg) 1177{ 1178 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); 1179 struct dchannel *dch = container_of(dev, struct dchannel, dev); 1180 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); 1181 struct channel_req *rq; 1182 int err = 0; 1183 1184 pr_debug("%s: DCTRL: %x %p\n", card->name, cmd, arg); 1185 switch (cmd) { 1186 case OPEN_CHANNEL: 1187 rq = arg; 1188 if (rq->protocol == ISDN_P_TE_S0) 1189 err = open_dchannel(card, rq, __builtin_return_address(0)); 1190 else 1191 err = open_bchannel(card, rq); 1192 if (err) 1193 break; 1194 if (!try_module_get(THIS_MODULE)) 1195 pr_info("%s: cannot get module\n", card->name); 1196 break; 1197 case CLOSE_CHANNEL: 1198 pr_debug("%s: dev(%d) close from %p\n", card->name, 1199 dch->dev.id, __builtin_return_address(0)); 1200 module_put(THIS_MODULE); 1201 break; 1202 case CONTROL_CHANNEL: 1203 err = channel_ctrl(card, arg); 1204 break; 1205 default: 1206 pr_debug("%s: unknown DCTRL command %x\n", card->name, cmd); 1207 return -EINVAL; 1208 } 1209 return err; 1210} 1211 1212static int 1213setup_w6692(struct w6692_hw *card) 1214{ 1215 u32 val; 1216 1217 if (!request_region(card->addr, 256, card->name)) { 1218 pr_info("%s: config port %x-%x already in use\n", card->name, 1219 card->addr, card->addr + 255); 1220 return -EIO; 1221 } 1222 W6692Version(card); 1223 card->bc[0].addr = card->addr; 1224 card->bc[1].addr = card->addr + 0x40; 1225 val = ReadW6692(card, W_ISTA); 1226 if (debug & DEBUG_HW) 1227 pr_notice("%s ISTA=%02x\n", card->name, val); 1228 val = ReadW6692(card, W_IMASK); 1229 if (debug & DEBUG_HW) 1230 pr_notice("%s IMASK=%02x\n", card->name, val); 1231 val = ReadW6692(card, W_D_EXIR); 1232 if (debug & DEBUG_HW) 1233 pr_notice("%s D_EXIR=%02x\n", card->name, val); 1234 val = ReadW6692(card, W_D_EXIM); 1235 if (debug & DEBUG_HW) 1236 pr_notice("%s D_EXIM=%02x\n", card->name, val); 1237 val = ReadW6692(card, W_D_RSTA); 1238 if (debug & DEBUG_HW) 1239 pr_notice("%s D_RSTA=%02x\n", card->name, val); 1240 return 0; 1241} 1242 1243static void 1244release_card(struct w6692_hw *card) 1245{ 1246 u_long flags; 1247 1248 spin_lock_irqsave(&card->lock, flags); 1249 disable_hwirq(card); 1250 w6692_mode(&card->bc[0], ISDN_P_NONE); 1251 w6692_mode(&card->bc[1], ISDN_P_NONE); 1252 if ((card->fmask & led) || card->subtype == W6692_USR) { 1253 card->xdata |= 0x04; /* LED OFF */ 1254 WriteW6692(card, W_XDATA, card->xdata); 1255 } 1256 spin_unlock_irqrestore(&card->lock, flags); 1257 free_irq(card->irq, card); 1258 l1_event(card->dch.l1, CLOSE_CHANNEL); 1259 mISDN_unregister_device(&card->dch.dev); 1260 release_region(card->addr, 256); 1261 mISDN_freebchannel(&card->bc[1].bch); 1262 mISDN_freebchannel(&card->bc[0].bch); 1263 mISDN_freedchannel(&card->dch); 1264 write_lock_irqsave(&card_lock, flags); 1265 list_del(&card->list); 1266 write_unlock_irqrestore(&card_lock, flags); 1267 pci_disable_device(card->pdev); 1268 pci_set_drvdata(card->pdev, NULL); 1269 kfree(card); 1270} 1271 1272static int 1273setup_instance(struct w6692_hw *card) 1274{ 1275 int i, err; 1276 u_long flags; 1277 1278 snprintf(card->name, MISDN_MAX_IDLEN - 1, "w6692.%d", w6692_cnt + 1); 1279 write_lock_irqsave(&card_lock, flags); 1280 list_add_tail(&card->list, &Cards); 1281 write_unlock_irqrestore(&card_lock, flags); 1282 card->fmask = (1 << w6692_cnt); 1283 _set_debug(card); 1284 spin_lock_init(&card->lock); 1285 mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, W6692_ph_bh); 1286 card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0); 1287 card->dch.dev.D.send = w6692_l2l1D; 1288 card->dch.dev.D.ctrl = w6692_dctrl; 1289 card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | 1290 (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); 1291 card->dch.hw = card; 1292 card->dch.dev.nrbchan = 2; 1293 for (i = 0; i < 2; i++) { 1294 mISDN_initbchannel(&card->bc[i].bch, MAX_DATA_MEM, 1295 W_B_FIFO_THRESH); 1296 card->bc[i].bch.hw = card; 1297 card->bc[i].bch.nr = i + 1; 1298 card->bc[i].bch.ch.nr = i + 1; 1299 card->bc[i].bch.ch.send = w6692_l2l1B; 1300 card->bc[i].bch.ch.ctrl = w6692_bctrl; 1301 set_channelmap(i + 1, card->dch.dev.channelmap); 1302 list_add(&card->bc[i].bch.ch.list, &card->dch.dev.bchannels); 1303 } 1304 err = setup_w6692(card); 1305 if (err) 1306 goto error_setup; 1307 err = mISDN_register_device(&card->dch.dev, &card->pdev->dev, 1308 card->name); 1309 if (err) 1310 goto error_reg; 1311 err = init_card(card); 1312 if (err) 1313 goto error_init; 1314 err = create_l1(&card->dch, w6692_l1callback); 1315 if (!err) { 1316 w6692_cnt++; 1317 pr_notice("W6692 %d cards installed\n", w6692_cnt); 1318 return 0; 1319 } 1320 1321 free_irq(card->irq, card); 1322error_init: 1323 mISDN_unregister_device(&card->dch.dev); 1324error_reg: 1325 release_region(card->addr, 256); 1326error_setup: 1327 mISDN_freebchannel(&card->bc[1].bch); 1328 mISDN_freebchannel(&card->bc[0].bch); 1329 mISDN_freedchannel(&card->dch); 1330 write_lock_irqsave(&card_lock, flags); 1331 list_del(&card->list); 1332 write_unlock_irqrestore(&card_lock, flags); 1333 kfree(card); 1334 return err; 1335} 1336 1337static int 1338w6692_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1339{ 1340 int err = -ENOMEM; 1341 struct w6692_hw *card; 1342 struct w6692map *m = (struct w6692map *)ent->driver_data; 1343 1344 card = kzalloc(sizeof(struct w6692_hw), GFP_KERNEL); 1345 if (!card) { 1346 pr_info("No kmem for w6692 card\n"); 1347 return err; 1348 } 1349 card->pdev = pdev; 1350 card->subtype = m->subtype; 1351 err = pci_enable_device(pdev); 1352 if (err) { 1353 kfree(card); 1354 return err; 1355 } 1356 1357 printk(KERN_INFO "mISDN_w6692: found adapter %s at %s\n", 1358 m->name, pci_name(pdev)); 1359 1360 card->addr = pci_resource_start(pdev, 1); 1361 card->irq = pdev->irq; 1362 pci_set_drvdata(pdev, card); 1363 err = setup_instance(card); 1364 if (err) 1365 pci_set_drvdata(pdev, NULL); 1366 return err; 1367} 1368 1369static void 1370w6692_remove_pci(struct pci_dev *pdev) 1371{ 1372 struct w6692_hw *card = pci_get_drvdata(pdev); 1373 1374 if (card) 1375 release_card(card); 1376 else 1377 if (debug) 1378 pr_notice("%s: drvdata already removed\n", __func__); 1379} 1380 1381static const struct pci_device_id w6692_ids[] = { 1382 { PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH, 1383 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[0]}, 1384 { PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, 1385 PCI_VENDOR_ID_USR, PCI_DEVICE_ID_USR_6692, 0, 0, 1386 (ulong)&w6692_map[2]}, 1387 { PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, 1388 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[1]}, 1389 { } 1390}; 1391MODULE_DEVICE_TABLE(pci, w6692_ids); 1392 1393static struct pci_driver w6692_driver = { 1394 .name = "w6692", 1395 .probe = w6692_probe, 1396 .remove = w6692_remove_pci, 1397 .id_table = w6692_ids, 1398}; 1399 1400static int __init w6692_init(void) 1401{ 1402 int err; 1403 1404 pr_notice("Winbond W6692 PCI driver Rev. %s\n", W6692_REV); 1405 1406 err = pci_register_driver(&w6692_driver); 1407 return err; 1408} 1409 1410static void __exit w6692_cleanup(void) 1411{ 1412 pci_unregister_driver(&w6692_driver); 1413} 1414 1415module_init(w6692_init); 1416module_exit(w6692_cleanup); 1417