sound/pci/lola/lola.c

   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 = (u32 *)chip->rb.area;
 373         chip->rirb.addr = chip->rb.addr + 2048;
 374         chip->rirb.buf = (u32 *)(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         if (chip->bar[0].remap_addr)
 555                 iounmap(chip->bar[0].remap_addr);
 556         if (chip->bar[1].remap_addr)
 557                 iounmap(chip->bar[1].remap_addr);
 558         if (chip->rb.area)
 559                 snd_dma_free_pages(&chip->rb);
 560         pci_release_regions(chip->pci);
 561         pci_disable_device(chip->pci);
 562         kfree(chip);
 563 }
 564
 565 static int lola_dev_free(struct snd_device *device)
 566 {
 567         lola_free(device->device_data);
 568         return 0;
 569 }
 570
 571 static int lola_create(struct snd_card *card, struct pci_dev *pci,
 572                        int dev, struct lola **rchip)
 573 {
 574         struct lola *chip;
 575         int err;
 576         unsigned int dever;
 577         static struct snd_device_ops ops = {
 578                 .dev_free = lola_dev_free,
 579         };
 580
 581         *rchip = NULL;
 582
 583         err = pci_enable_device(pci);
 584         if (err < 0)
 585                 return err;
 586
 587         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 588         if (!chip) {
 589                 pci_disable_device(pci);
 590                 return -ENOMEM;
 591         }
 592
 593         spin_lock_init(&chip->reg_lock);
 594         mutex_init(&chip->open_mutex);
 595         chip->card = card;
 596         chip->pci = pci;
 597         chip->irq = -1;
 598
 599         chip->granularity = granularity[dev];
 600         switch (chip->granularity) {
 601         case 8:
 602                 chip->sample_rate_max = 48000;
 603                 break;
 604         case 16:
 605                 chip->sample_rate_max = 96000;
 606                 break;
 607         case 32:
 608                 chip->sample_rate_max = 192000;
 609                 break;
 610         default:
 611                 dev_warn(chip->card->dev,
 612                            "Invalid granularity %d, reset to %d\n",
 613                            chip->granularity, LOLA_GRANULARITY_MAX);
 614                 chip->granularity = LOLA_GRANULARITY_MAX;
 615                 chip->sample_rate_max = 192000;
 616                 break;
 617         }
 618         chip->sample_rate_min = sample_rate_min[dev];
 619         if (chip->sample_rate_min > chip->sample_rate_max) {
 620                 dev_warn(chip->card->dev,
 621                            "Invalid sample_rate_min %d, reset to 16000\n",
 622                            chip->sample_rate_min);
 623                 chip->sample_rate_min = 16000;
 624         }
 625
 626         err = pci_request_regions(pci, DRVNAME);
 627         if (err < 0) {
 628                 kfree(chip);
 629                 pci_disable_device(pci);
 630                 return err;
 631         }
 632
 633         chip->bar[0].addr = pci_resource_start(pci, 0);
 634         chip->bar[0].remap_addr = pci_ioremap_bar(pci, 0);
 635         chip->bar[1].addr = pci_resource_start(pci, 2);
 636         chip->bar[1].remap_addr = pci_ioremap_bar(pci, 2);
 637         if (!chip->bar[0].remap_addr || !chip->bar[1].remap_addr) {
 638                 dev_err(chip->card->dev, "ioremap error\n");
 639                 err = -ENXIO;
 640                 goto errout;
 641         }
 642
 643         pci_set_master(pci);
 644
 645         err = reset_controller(chip);
 646         if (err < 0)
 647                 goto errout;
 648
 649         if (request_irq(pci->irq, lola_interrupt, IRQF_SHARED,
 650                         KBUILD_MODNAME, chip)) {
 651                 dev_err(chip->card->dev, "unable to grab IRQ %d\n", pci->irq);
 652                 err = -EBUSY;
 653                 goto errout;
 654         }
 655         chip->irq = pci->irq;
 656         synchronize_irq(chip->irq);
 657
 658         dever = lola_readl(chip, BAR1, DEVER);
 659         chip->pcm[CAPT].num_streams = (dever >> 0) & 0x3ff;
 660         chip->pcm[PLAY].num_streams = (dever >> 10) & 0x3ff;
 661         chip->version = (dever >> 24) & 0xff;
 662         dev_dbg(chip->card->dev, "streams in=%d, out=%d, version=0x%x\n",
 663                     chip->pcm[CAPT].num_streams, chip->pcm[PLAY].num_streams,
 664                     chip->version);
 665
 666         /* Test LOLA_BAR1_DEVER */
 667         if (chip->pcm[CAPT].num_streams > MAX_STREAM_IN_COUNT ||
 668             chip->pcm[PLAY].num_streams > MAX_STREAM_OUT_COUNT ||
 669             (!chip->pcm[CAPT].num_streams &&
 670              !chip->pcm[PLAY].num_streams)) {
 671                 dev_err(chip->card->dev, "invalid DEVER = %x\n", dever);
 672                 err = -EINVAL;
 673                 goto errout;
 674         }
 675
 676         err = setup_corb_rirb(chip);
 677         if (err < 0)
 678                 goto errout;
 679
 680         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 681         if (err < 0) {
 682                 dev_err(chip->card->dev, "Error creating device [card]!\n");
 683                 goto errout;
 684         }
 685
 686         strcpy(card->driver, "Lola");
 687         strlcpy(card->shortname, "Digigram Lola", sizeof(card->shortname));
 688         snprintf(card->longname, sizeof(card->longname),
 689                  "%s at 0x%lx irq %i",
 690                  card->shortname, chip->bar[0].addr, chip->irq);
 691         strcpy(card->mixername, card->shortname);
 692
 693         lola_irq_enable(chip);
 694
 695         chip->initialized = 1;
 696         *rchip = chip;
 697         return 0;
 698
 699  errout:
 700         lola_free(chip);
 701         return err;
 702 }
 703
 704 static int lola_probe(struct pci_dev *pci,
 705                       const struct pci_device_id *pci_id)
 706 {
 707         static int dev;
 708         struct snd_card *card;
 709         struct lola *chip;
 710         int err;
 711
 712         if (dev >= SNDRV_CARDS)
 713                 return -ENODEV;
 714         if (!enable[dev]) {
 715                 dev++;
 716                 return -ENOENT;
 717         }
 718
 719         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
 720                            0, &card);
 721         if (err < 0) {
 722                 dev_err(card->dev, "Error creating card!\n");
 723                 return err;
 724         }
 725
 726         err = lola_create(card, pci, dev, &chip);
 727         if (err < 0)
 728                 goto out_free;
 729         card->private_data = chip;
 730
 731         err = lola_parse_tree(chip);
 732         if (err < 0)
 733                 goto out_free;
 734
 735         err = lola_create_pcm(chip);
 736         if (err < 0)
 737                 goto out_free;
 738
 739         err = lola_create_mixer(chip);
 740         if (err < 0)
 741                 goto out_free;
 742
 743         lola_proc_debug_new(chip);
 744
 745         err = snd_card_register(card);
 746         if (err < 0)
 747                 goto out_free;
 748
 749         pci_set_drvdata(pci, card);
 750         dev++;
 751         return err;
 752 out_free:
 753         snd_card_free(card);
 754         return err;
 755 }
 756
 757 static void lola_remove(struct pci_dev *pci)
 758 {
 759         snd_card_free(pci_get_drvdata(pci));
 760 }
 761
 762 /* PCI IDs */
 763 static const struct pci_device_id lola_ids[] = {
 764         { PCI_VDEVICE(DIGIGRAM, 0x0001) },
 765         { 0, }
 766 };
 767 MODULE_DEVICE_TABLE(pci, lola_ids);
 768
 769 /* pci_driver definition */
 770 static struct pci_driver lola_driver = {
 771         .name = KBUILD_MODNAME,
 772         .id_table = lola_ids,
 773         .probe = lola_probe,
 774         .remove = lola_remove,
 775 };
 776
 777 module_pci_driver(lola_driver);