1 /* 2 * Support for Digigram Lola PCI-e boards 3 * 4 * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de> 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the Free 8 * Software Foundation; either version 2 of the License, or (at your option) 9 * any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * You should have received a copy of the GNU General Public License along with 17 * this program; if not, write to the Free Software Foundation, Inc., 59 18 * Temple Place - Suite 330, Boston, MA 02111-1307, USA. 19 */ 20 21 #include <linux/kernel.h> 22 #include <linux/init.h> 23 #include <linux/module.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/delay.h> 26 #include <linux/interrupt.h> 27 #include <linux/slab.h> 28 #include <linux/pci.h> 29 #include <sound/core.h> 30 #include <sound/control.h> 31 #include <sound/pcm.h> 32 #include <sound/initval.h> 33 #include "lola.h" 34 35 /* Standard options */ 36 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 37 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 38 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 39 40 module_param_array(index, int, NULL, 0444); 41 MODULE_PARM_DESC(index, "Index value for Digigram Lola driver."); 42 module_param_array(id, charp, NULL, 0444); 43 MODULE_PARM_DESC(id, "ID string for Digigram Lola driver."); 44 module_param_array(enable, bool, NULL, 0444); 45 MODULE_PARM_DESC(enable, "Enable Digigram Lola driver."); 46 47 /* Lola-specific options */ 48 49 /* for instance use always max granularity which is compatible 50 * with all sample rates 51 */ 52 static int granularity[SNDRV_CARDS] = { 53 [0 ... (SNDRV_CARDS - 1)] = LOLA_GRANULARITY_MAX 54 }; 55 56 /* below a sample_rate of 16kHz the analogue audio quality is NOT excellent */ 57 static int sample_rate_min[SNDRV_CARDS] = { 58 [0 ... (SNDRV_CARDS - 1) ] = 16000 59 }; 60 61 module_param_array(granularity, int, NULL, 0444); 62 MODULE_PARM_DESC(granularity, "Granularity value"); 63 module_param_array(sample_rate_min, int, NULL, 0444); 64 MODULE_PARM_DESC(sample_rate_min, "Minimal sample rate"); 65 66 /* 67 */ 68 69 MODULE_LICENSE("GPL"); 70 MODULE_SUPPORTED_DEVICE("{{Digigram, Lola}}"); 71 MODULE_DESCRIPTION("Digigram Lola driver"); 72 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); 73 74 #ifdef CONFIG_SND_DEBUG_VERBOSE 75 static int debug; 76 module_param(debug, int, 0644); 77 #define verbose_debug(fmt, args...) \ 78 do { if (debug > 1) pr_debug(SFX fmt, ##args); } while (0) 79 #else 80 #define verbose_debug(fmt, args...) 81 #endif 82 83 /* 84 * pseudo-codec read/write via CORB/RIRB 85 */ 86 87 static int corb_send_verb(struct lola *chip, unsigned int nid, 88 unsigned int verb, unsigned int data, 89 unsigned int extdata) 90 { 91 unsigned long flags; 92 int ret = -EIO; 93 94 chip->last_cmd_nid = nid; 95 chip->last_verb = verb; 96 chip->last_data = data; 97 chip->last_extdata = extdata; 98 data |= (nid << 20) | (verb << 8); 99 100 spin_lock_irqsave(&chip->reg_lock, flags); 101 if (chip->rirb.cmds < LOLA_CORB_ENTRIES - 1) { 102 unsigned int wp = chip->corb.wp + 1; 103 wp %= LOLA_CORB_ENTRIES; 104 chip->corb.wp = wp; 105 chip->corb.buf[wp * 2] = cpu_to_le32(data); 106 chip->corb.buf[wp * 2 + 1] = cpu_to_le32(extdata); 107 lola_writew(chip, BAR0, CORBWP, wp); 108 chip->rirb.cmds++; 109 smp_wmb(); 110 ret = 0; 111 } 112 spin_unlock_irqrestore(&chip->reg_lock, flags); 113 return ret; 114 } 115 116 static void lola_queue_unsol_event(struct lola *chip, unsigned int res, 117 unsigned int res_ex) 118 { 119 lola_update_ext_clock_freq(chip, res); 120 } 121 122 /* retrieve RIRB entry - called from interrupt handler */ 123 static void lola_update_rirb(struct lola *chip) 124 { 125 unsigned int rp, wp; 126 u32 res, res_ex; 127 128 wp = lola_readw(chip, BAR0, RIRBWP); 129 if (wp == chip->rirb.wp) 130 return; 131 chip->rirb.wp = wp; 132 133 while (chip->rirb.rp != wp) { 134 chip->rirb.rp++; 135 chip->rirb.rp %= LOLA_CORB_ENTRIES; 136 137 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */ 138 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]); 139 res = le32_to_cpu(chip->rirb.buf[rp]); 140 if (res_ex & LOLA_RIRB_EX_UNSOL_EV) 141 lola_queue_unsol_event(chip, res, res_ex); 142 else if (chip->rirb.cmds) { 143 chip->res = res; 144 chip->res_ex = res_ex; 145 smp_wmb(); 146 chip->rirb.cmds--; 147 } 148 } 149 } 150 151 static int rirb_get_response(struct lola *chip, unsigned int *val, 152 unsigned int *extval) 153 { 154 unsigned long timeout; 155 156 again: 157 timeout = jiffies + msecs_to_jiffies(1000); 158 for (;;) { 159 if (chip->polling_mode) { 160 spin_lock_irq(&chip->reg_lock); 161 lola_update_rirb(chip); 162 spin_unlock_irq(&chip->reg_lock); 163 } 164 if (!chip->rirb.cmds) { 165 *val = chip->res; 166 if (extval) 167 *extval = chip->res_ex; 168 verbose_debug("get_response: %x, %x\n", 169 chip->res, chip->res_ex); 170 if (chip->res_ex & LOLA_RIRB_EX_ERROR) { 171 dev_warn(chip->card->dev, "RIRB ERROR: " 172 "NID=%x, verb=%x, data=%x, ext=%x\n", 173 chip->last_cmd_nid, 174 chip->last_verb, chip->last_data, 175 chip->last_extdata); 176 return -EIO; 177 } 178 return 0; 179 } 180 if (time_after(jiffies, timeout)) 181 break; 182 udelay(20); 183 cond_resched(); 184 } 185 dev_warn(chip->card->dev, "RIRB response error\n"); 186 if (!chip->polling_mode) { 187 dev_warn(chip->card->dev, "switching to polling mode\n"); 188 chip->polling_mode = 1; 189 goto again; 190 } 191 return -EIO; 192 } 193 194 /* aynchronous write of a codec verb with data */ 195 int lola_codec_write(struct lola *chip, unsigned int nid, unsigned int verb, 196 unsigned int data, unsigned int extdata) 197 { 198 verbose_debug("codec_write NID=%x, verb=%x, data=%x, ext=%x\n", 199 nid, verb, data, extdata); 200 return corb_send_verb(chip, nid, verb, data, extdata); 201 } 202 203 /* write a codec verb with data and read the returned status */ 204 int lola_codec_read(struct lola *chip, unsigned int nid, unsigned int verb, 205 unsigned int data, unsigned int extdata, 206 unsigned int *val, unsigned int *extval) 207 { 208 int err; 209 210 verbose_debug("codec_read NID=%x, verb=%x, data=%x, ext=%x\n", 211 nid, verb, data, extdata); 212 err = corb_send_verb(chip, nid, verb, data, extdata); 213 if (err < 0) 214 return err; 215 err = rirb_get_response(chip, val, extval); 216 return err; 217 } 218 219 /* flush all pending codec writes */ 220 int lola_codec_flush(struct lola *chip) 221 { 222 unsigned int tmp; 223 return rirb_get_response(chip, &tmp, NULL); 224 } 225 226 /* 227 * interrupt handler 228 */ 229 static irqreturn_t lola_interrupt(int irq, void *dev_id) 230 { 231 struct lola *chip = dev_id; 232 unsigned int notify_ins, notify_outs, error_ins, error_outs; 233 int handled = 0; 234 int i; 235 236 notify_ins = notify_outs = error_ins = error_outs = 0; 237 spin_lock(&chip->reg_lock); 238 for (;;) { 239 unsigned int status, in_sts, out_sts; 240 unsigned int reg; 241 242 status = lola_readl(chip, BAR1, DINTSTS); 243 if (!status || status == -1) 244 break; 245 246 in_sts = lola_readl(chip, BAR1, DIINTSTS); 247 out_sts = lola_readl(chip, BAR1, DOINTSTS); 248 249 /* clear Input Interrupts */ 250 for (i = 0; in_sts && i < chip->pcm[CAPT].num_streams; i++) { 251 if (!(in_sts & (1 << i))) 252 continue; 253 in_sts &= ~(1 << i); 254 reg = lola_dsd_read(chip, i, STS); 255 if (reg & LOLA_DSD_STS_DESE) /* error */ 256 error_ins |= (1 << i); 257 if (reg & LOLA_DSD_STS_BCIS) /* notify */ 258 notify_ins |= (1 << i); 259 /* clear */ 260 lola_dsd_write(chip, i, STS, reg); 261 } 262 263 /* clear Output Interrupts */ 264 for (i = 0; out_sts && i < chip->pcm[PLAY].num_streams; i++) { 265 if (!(out_sts & (1 << i))) 266 continue; 267 out_sts &= ~(1 << i); 268 reg = lola_dsd_read(chip, i + MAX_STREAM_IN_COUNT, STS); 269 if (reg & LOLA_DSD_STS_DESE) /* error */ 270 error_outs |= (1 << i); 271 if (reg & LOLA_DSD_STS_BCIS) /* notify */ 272 notify_outs |= (1 << i); 273 lola_dsd_write(chip, i + MAX_STREAM_IN_COUNT, STS, reg); 274 } 275 276 if (status & LOLA_DINT_CTRL) { 277 unsigned char rbsts; /* ring status is byte access */ 278 rbsts = lola_readb(chip, BAR0, RIRBSTS); 279 rbsts &= LOLA_RIRB_INT_MASK; 280 if (rbsts) 281 lola_writeb(chip, BAR0, RIRBSTS, rbsts); 282 rbsts = lola_readb(chip, BAR0, CORBSTS); 283 rbsts &= LOLA_CORB_INT_MASK; 284 if (rbsts) 285 lola_writeb(chip, BAR0, CORBSTS, rbsts); 286 287 lola_update_rirb(chip); 288 } 289 290 if (status & (LOLA_DINT_FIFOERR | LOLA_DINT_MUERR)) { 291 /* clear global fifo error interrupt */ 292 lola_writel(chip, BAR1, DINTSTS, 293 (status & (LOLA_DINT_FIFOERR | LOLA_DINT_MUERR))); 294 } 295 handled = 1; 296 } 297 spin_unlock(&chip->reg_lock); 298 299 lola_pcm_update(chip, &chip->pcm[CAPT], notify_ins); 300 lola_pcm_update(chip, &chip->pcm[PLAY], notify_outs); 301 302 return IRQ_RETVAL(handled); 303 } 304 305 306 /* 307 * controller 308 */ 309 static int reset_controller(struct lola *chip) 310 { 311 unsigned int gctl = lola_readl(chip, BAR0, GCTL); 312 unsigned long end_time; 313 314 if (gctl) { 315 /* to be sure */ 316 lola_writel(chip, BAR1, BOARD_MODE, 0); 317 return 0; 318 } 319 320 chip->cold_reset = 1; 321 lola_writel(chip, BAR0, GCTL, LOLA_GCTL_RESET); 322 end_time = jiffies + msecs_to_jiffies(200); 323 do { 324 msleep(1); 325 gctl = lola_readl(chip, BAR0, GCTL); 326 if (gctl) 327 break; 328 } while (time_before(jiffies, end_time)); 329 if (!gctl) { 330 dev_err(chip->card->dev, "cannot reset controller\n"); 331 return -EIO; 332 } 333 return 0; 334 } 335 336 static void lola_irq_enable(struct lola *chip) 337 { 338 unsigned int val; 339 340 /* enalbe all I/O streams */ 341 val = (1 << chip->pcm[PLAY].num_streams) - 1; 342 lola_writel(chip, BAR1, DOINTCTL, val); 343 val = (1 << chip->pcm[CAPT].num_streams) - 1; 344 lola_writel(chip, BAR1, DIINTCTL, val); 345 346 /* enable global irqs */ 347 val = LOLA_DINT_GLOBAL | LOLA_DINT_CTRL | LOLA_DINT_FIFOERR | 348 LOLA_DINT_MUERR; 349 lola_writel(chip, BAR1, DINTCTL, val); 350 } 351 352 static void lola_irq_disable(struct lola *chip) 353 { 354 lola_writel(chip, BAR1, DINTCTL, 0); 355 lola_writel(chip, BAR1, DIINTCTL, 0); 356 lola_writel(chip, BAR1, DOINTCTL, 0); 357 } 358 359 static int setup_corb_rirb(struct lola *chip) 360 { 361 int err; 362 unsigned char tmp; 363 unsigned long end_time; 364 365 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, 366 snd_dma_pci_data(chip->pci), 367 PAGE_SIZE, &chip->rb); 368 if (err < 0) 369 return err; 370 371 chip->corb.addr = chip->rb.addr; 372 chip->corb.buf = (__le32 *)chip->rb.area; 373 chip->rirb.addr = chip->rb.addr + 2048; 374 chip->rirb.buf = (__le32 *)(chip->rb.area + 2048); 375 376 /* disable ringbuffer DMAs */ 377 lola_writeb(chip, BAR0, RIRBCTL, 0); 378 lola_writeb(chip, BAR0, CORBCTL, 0); 379 380 end_time = jiffies + msecs_to_jiffies(200); 381 do { 382 if (!lola_readb(chip, BAR0, RIRBCTL) && 383 !lola_readb(chip, BAR0, CORBCTL)) 384 break; 385 msleep(1); 386 } while (time_before(jiffies, end_time)); 387 388 /* CORB set up */ 389 lola_writel(chip, BAR0, CORBLBASE, (u32)chip->corb.addr); 390 lola_writel(chip, BAR0, CORBUBASE, upper_32_bits(chip->corb.addr)); 391 /* set the corb size to 256 entries */ 392 lola_writeb(chip, BAR0, CORBSIZE, 0x02); 393 /* set the corb write pointer to 0 */ 394 lola_writew(chip, BAR0, CORBWP, 0); 395 /* reset the corb hw read pointer */ 396 lola_writew(chip, BAR0, CORBRP, LOLA_RBRWP_CLR); 397 /* enable corb dma */ 398 lola_writeb(chip, BAR0, CORBCTL, LOLA_RBCTL_DMA_EN); 399 /* clear flags if set */ 400 tmp = lola_readb(chip, BAR0, CORBSTS) & LOLA_CORB_INT_MASK; 401 if (tmp) 402 lola_writeb(chip, BAR0, CORBSTS, tmp); 403 chip->corb.wp = 0; 404 405 /* RIRB set up */ 406 lola_writel(chip, BAR0, RIRBLBASE, (u32)chip->rirb.addr); 407 lola_writel(chip, BAR0, RIRBUBASE, upper_32_bits(chip->rirb.addr)); 408 /* set the rirb size to 256 entries */ 409 lola_writeb(chip, BAR0, RIRBSIZE, 0x02); 410 /* reset the rirb hw write pointer */ 411 lola_writew(chip, BAR0, RIRBWP, LOLA_RBRWP_CLR); 412 /* set N=1, get RIRB response interrupt for new entry */ 413 lola_writew(chip, BAR0, RINTCNT, 1); 414 /* enable rirb dma and response irq */ 415 lola_writeb(chip, BAR0, RIRBCTL, LOLA_RBCTL_DMA_EN | LOLA_RBCTL_IRQ_EN); 416 /* clear flags if set */ 417 tmp = lola_readb(chip, BAR0, RIRBSTS) & LOLA_RIRB_INT_MASK; 418 if (tmp) 419 lola_writeb(chip, BAR0, RIRBSTS, tmp); 420 chip->rirb.rp = chip->rirb.cmds = 0; 421 422 return 0; 423 } 424 425 static void stop_corb_rirb(struct lola *chip) 426 { 427 /* disable ringbuffer DMAs */ 428 lola_writeb(chip, BAR0, RIRBCTL, 0); 429 lola_writeb(chip, BAR0, CORBCTL, 0); 430 } 431 432 static void lola_reset_setups(struct lola *chip) 433 { 434 /* update the granularity */ 435 lola_set_granularity(chip, chip->granularity, true); 436 /* update the sample clock */ 437 lola_set_clock_index(chip, chip->clock.cur_index); 438 /* enable unsolicited events of the clock widget */ 439 lola_enable_clock_events(chip); 440 /* update the analog gains */ 441 lola_setup_all_analog_gains(chip, CAPT, false); /* input, update */ 442 /* update SRC configuration if applicable */ 443 lola_set_src_config(chip, chip->input_src_mask, false); 444 /* update the analog outputs */ 445 lola_setup_all_analog_gains(chip, PLAY, false); /* output, update */ 446 } 447 448 static int lola_parse_tree(struct lola *chip) 449 { 450 unsigned int val; 451 int nid, err; 452 453 err = lola_read_param(chip, 0, LOLA_PAR_VENDOR_ID, &val); 454 if (err < 0) { 455 dev_err(chip->card->dev, "Can't read VENDOR_ID\n"); 456 return err; 457 } 458 val >>= 16; 459 if (val != 0x1369) { 460 dev_err(chip->card->dev, "Unknown codec vendor 0x%x\n", val); 461 return -EINVAL; 462 } 463 464 err = lola_read_param(chip, 1, LOLA_PAR_FUNCTION_TYPE, &val); 465 if (err < 0) { 466 dev_err(chip->card->dev, "Can't read FUNCTION_TYPE\n"); 467 return err; 468 } 469 if (val != 1) { 470 dev_err(chip->card->dev, "Unknown function type %d\n", val); 471 return -EINVAL; 472 } 473 474 err = lola_read_param(chip, 1, LOLA_PAR_SPECIFIC_CAPS, &val); 475 if (err < 0) { 476 dev_err(chip->card->dev, "Can't read SPECCAPS\n"); 477 return err; 478 } 479 chip->lola_caps = val; 480 chip->pin[CAPT].num_pins = LOLA_AFG_INPUT_PIN_COUNT(chip->lola_caps); 481 chip->pin[PLAY].num_pins = LOLA_AFG_OUTPUT_PIN_COUNT(chip->lola_caps); 482 dev_dbg(chip->card->dev, "speccaps=0x%x, pins in=%d, out=%d\n", 483 chip->lola_caps, 484 chip->pin[CAPT].num_pins, chip->pin[PLAY].num_pins); 485 486 if (chip->pin[CAPT].num_pins > MAX_AUDIO_INOUT_COUNT || 487 chip->pin[PLAY].num_pins > MAX_AUDIO_INOUT_COUNT) { 488 dev_err(chip->card->dev, "Invalid Lola-spec caps 0x%x\n", val); 489 return -EINVAL; 490 } 491 492 nid = 0x02; 493 err = lola_init_pcm(chip, CAPT, &nid); 494 if (err < 0) 495 return err; 496 err = lola_init_pcm(chip, PLAY, &nid); 497 if (err < 0) 498 return err; 499 500 err = lola_init_pins(chip, CAPT, &nid); 501 if (err < 0) 502 return err; 503 err = lola_init_pins(chip, PLAY, &nid); 504 if (err < 0) 505 return err; 506 507 if (LOLA_AFG_CLOCK_WIDGET_PRESENT(chip->lola_caps)) { 508 err = lola_init_clock_widget(chip, nid); 509 if (err < 0) 510 return err; 511 nid++; 512 } 513 if (LOLA_AFG_MIXER_WIDGET_PRESENT(chip->lola_caps)) { 514 err = lola_init_mixer_widget(chip, nid); 515 if (err < 0) 516 return err; 517 nid++; 518 } 519 520 /* enable unsolicited events of the clock widget */ 521 err = lola_enable_clock_events(chip); 522 if (err < 0) 523 return err; 524 525 /* if last ResetController was not a ColdReset, we don't know 526 * the state of the card; initialize here again 527 */ 528 if (!chip->cold_reset) { 529 lola_reset_setups(chip); 530 chip->cold_reset = 1; 531 } else { 532 /* set the granularity if it is not the default */ 533 if (chip->granularity != LOLA_GRANULARITY_MIN) 534 lola_set_granularity(chip, chip->granularity, true); 535 } 536 537 return 0; 538 } 539 540 static void lola_stop_hw(struct lola *chip) 541 { 542 stop_corb_rirb(chip); 543 lola_irq_disable(chip); 544 } 545 546 static void lola_free(struct lola *chip) 547 { 548 if (chip->initialized) 549 lola_stop_hw(chip); 550 lola_free_pcm(chip); 551 lola_free_mixer(chip); 552 if (chip->irq >= 0) 553 free_irq(chip->irq, (void *)chip); 554 iounmap(chip->bar[0].remap_addr); 555 iounmap(chip->bar[1].remap_addr); 556 if (chip->rb.area) 557 snd_dma_free_pages(&chip->rb); 558 pci_release_regions(chip->pci); 559 pci_disable_device(chip->pci); 560 kfree(chip); 561 } 562 563 static int lola_dev_free(struct snd_device *device) 564 { 565 lola_free(device->device_data); 566 return 0; 567 } 568 569 static int lola_create(struct snd_card *card, struct pci_dev *pci, 570 int dev, struct lola **rchip) 571 { 572 struct lola *chip; 573 int err; 574 unsigned int dever; 575 static struct snd_device_ops ops = { 576 .dev_free = lola_dev_free, 577 }; 578 579 *rchip = NULL; 580 581 err = pci_enable_device(pci); 582 if (err < 0) 583 return err; 584 585 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 586 if (!chip) { 587 pci_disable_device(pci); 588 return -ENOMEM; 589 } 590 591 spin_lock_init(&chip->reg_lock); 592 mutex_init(&chip->open_mutex); 593 chip->card = card; 594 chip->pci = pci; 595 chip->irq = -1; 596 597 chip->granularity = granularity[dev]; 598 switch (chip->granularity) { 599 case 8: 600 chip->sample_rate_max = 48000; 601 break; 602 case 16: 603 chip->sample_rate_max = 96000; 604 break; 605 case 32: 606 chip->sample_rate_max = 192000; 607 break; 608 default: 609 dev_warn(chip->card->dev, 610 "Invalid granularity %d, reset to %d\n", 611 chip->granularity, LOLA_GRANULARITY_MAX); 612 chip->granularity = LOLA_GRANULARITY_MAX; 613 chip->sample_rate_max = 192000; 614 break; 615 } 616 chip->sample_rate_min = sample_rate_min[dev]; 617 if (chip->sample_rate_min > chip->sample_rate_max) { 618 dev_warn(chip->card->dev, 619 "Invalid sample_rate_min %d, reset to 16000\n", 620 chip->sample_rate_min); 621 chip->sample_rate_min = 16000; 622 } 623 624 err = pci_request_regions(pci, DRVNAME); 625 if (err < 0) { 626 kfree(chip); 627 pci_disable_device(pci); 628 return err; 629 } 630 631 chip->bar[0].addr = pci_resource_start(pci, 0); 632 chip->bar[0].remap_addr = pci_ioremap_bar(pci, 0); 633 chip->bar[1].addr = pci_resource_start(pci, 2); 634 chip->bar[1].remap_addr = pci_ioremap_bar(pci, 2); 635 if (!chip->bar[0].remap_addr || !chip->bar[1].remap_addr) { 636 dev_err(chip->card->dev, "ioremap error\n"); 637 err = -ENXIO; 638 goto errout; 639 } 640 641 pci_set_master(pci); 642 643 err = reset_controller(chip); 644 if (err < 0) 645 goto errout; 646 647 if (request_irq(pci->irq, lola_interrupt, IRQF_SHARED, 648 KBUILD_MODNAME, chip)) { 649 dev_err(chip->card->dev, "unable to grab IRQ %d\n", pci->irq); 650 err = -EBUSY; 651 goto errout; 652 } 653 chip->irq = pci->irq; 654 synchronize_irq(chip->irq); 655 656 dever = lola_readl(chip, BAR1, DEVER); 657 chip->pcm[CAPT].num_streams = (dever >> 0) & 0x3ff; 658 chip->pcm[PLAY].num_streams = (dever >> 10) & 0x3ff; 659 chip->version = (dever >> 24) & 0xff; 660 dev_dbg(chip->card->dev, "streams in=%d, out=%d, version=0x%x\n", 661 chip->pcm[CAPT].num_streams, chip->pcm[PLAY].num_streams, 662 chip->version); 663 664 /* Test LOLA_BAR1_DEVER */ 665 if (chip->pcm[CAPT].num_streams > MAX_STREAM_IN_COUNT || 666 chip->pcm[PLAY].num_streams > MAX_STREAM_OUT_COUNT || 667 (!chip->pcm[CAPT].num_streams && 668 !chip->pcm[PLAY].num_streams)) { 669 dev_err(chip->card->dev, "invalid DEVER = %x\n", dever); 670 err = -EINVAL; 671 goto errout; 672 } 673 674 err = setup_corb_rirb(chip); 675 if (err < 0) 676 goto errout; 677 678 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 679 if (err < 0) { 680 dev_err(chip->card->dev, "Error creating device [card]!\n"); 681 goto errout; 682 } 683 684 strcpy(card->driver, "Lola"); 685 strlcpy(card->shortname, "Digigram Lola", sizeof(card->shortname)); 686 snprintf(card->longname, sizeof(card->longname), 687 "%s at 0x%lx irq %i", 688 card->shortname, chip->bar[0].addr, chip->irq); 689 strcpy(card->mixername, card->shortname); 690 691 lola_irq_enable(chip); 692 693 chip->initialized = 1; 694 *rchip = chip; 695 return 0; 696 697 errout: 698 lola_free(chip); 699 return err; 700 } 701 702 static int lola_probe(struct pci_dev *pci, 703 const struct pci_device_id *pci_id) 704 { 705 static int dev; 706 struct snd_card *card; 707 struct lola *chip; 708 int err; 709 710 if (dev >= SNDRV_CARDS) 711 return -ENODEV; 712 if (!enable[dev]) { 713 dev++; 714 return -ENOENT; 715 } 716 717 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 718 0, &card); 719 if (err < 0) { 720 dev_err(&pci->dev, "Error creating card!\n"); 721 return err; 722 } 723 724 err = lola_create(card, pci, dev, &chip); 725 if (err < 0) 726 goto out_free; 727 card->private_data = chip; 728 729 err = lola_parse_tree(chip); 730 if (err < 0) 731 goto out_free; 732 733 err = lola_create_pcm(chip); 734 if (err < 0) 735 goto out_free; 736 737 err = lola_create_mixer(chip); 738 if (err < 0) 739 goto out_free; 740 741 lola_proc_debug_new(chip); 742 743 err = snd_card_register(card); 744 if (err < 0) 745 goto out_free; 746 747 pci_set_drvdata(pci, card); 748 dev++; 749 return err; 750 out_free: 751 snd_card_free(card); 752 return err; 753 } 754 755 static void lola_remove(struct pci_dev *pci) 756 { 757 snd_card_free(pci_get_drvdata(pci)); 758 } 759 760 /* PCI IDs */ 761 static const struct pci_device_id lola_ids[] = { 762 { PCI_VDEVICE(DIGIGRAM, 0x0001) }, 763 { 0, } 764 }; 765 MODULE_DEVICE_TABLE(pci, lola_ids); 766 767 /* pci_driver definition */ 768 static struct pci_driver lola_driver = { 769 .name = KBUILD_MODNAME, 770 .id_table = lola_ids, 771 .probe = lola_probe, 772 .remove = lola_remove, 773 }; 774 775 module_pci_driver(lola_driver); 776