linux/sound/pci/lola/lola.c
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   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 */
  36static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  37static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  38static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  39
  40module_param_array(index, int, NULL, 0444);
  41MODULE_PARM_DESC(index, "Index value for Digigram Lola driver.");
  42module_param_array(id, charp, NULL, 0444);
  43MODULE_PARM_DESC(id, "ID string for Digigram Lola driver.");
  44module_param_array(enable, bool, NULL, 0444);
  45MODULE_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 */
  52static 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 */
  57static int sample_rate_min[SNDRV_CARDS] = {
  58        [0 ... (SNDRV_CARDS - 1) ] = 16000
  59};
  60
  61module_param_array(granularity, int, NULL, 0444);
  62MODULE_PARM_DESC(granularity, "Granularity value");
  63module_param_array(sample_rate_min, int, NULL, 0444);
  64MODULE_PARM_DESC(sample_rate_min, "Minimal sample rate");
  65
  66/*
  67 */
  68
  69MODULE_LICENSE("GPL");
  70MODULE_SUPPORTED_DEVICE("{{Digigram, Lola}}");
  71MODULE_DESCRIPTION("Digigram Lola driver");
  72MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  73
  74#ifdef CONFIG_SND_DEBUG_VERBOSE
  75static int debug;
  76module_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
  87static 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
 116static 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 */
 123static 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
 151static 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 */
 195int 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 */
 204int 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 */
 220int 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 */
 229static 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 */
 309static 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
 336static 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
 352static 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
 359static 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
 425static 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
 432static 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
 448static 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
 540static void lola_stop_hw(struct lola *chip)
 541{
 542        stop_corb_rirb(chip);
 543        lola_irq_disable(chip);
 544}
 545
 546static 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
 563static int lola_dev_free(struct snd_device *device)
 564{
 565        lola_free(device->device_data);
 566        return 0;
 567}
 568
 569static 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
 702static 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;
 750out_free:
 751        snd_card_free(card);
 752        return err;
 753}
 754
 755static void lola_remove(struct pci_dev *pci)
 756{
 757        snd_card_free(pci_get_drvdata(pci));
 758}
 759
 760/* PCI IDs */
 761static const struct pci_device_id lola_ids[] = {
 762        { PCI_VDEVICE(DIGIGRAM, 0x0001) },
 763        { 0, }
 764};
 765MODULE_DEVICE_TABLE(pci, lola_ids);
 766
 767/* pci_driver definition */
 768static struct pci_driver lola_driver = {
 769        .name = KBUILD_MODNAME,
 770        .id_table = lola_ids,
 771        .probe = lola_probe,
 772        .remove = lola_remove,
 773};
 774
 775module_pci_driver(lola_driver);
 776