linux/sound/pci/pcxhr/pcxhr.c
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   1/*
   2 * Driver for Digigram pcxhr compatible soundcards
   3 *
   4 * main file with alsa callbacks
   5 *
   6 * Copyright (c) 2004 by Digigram <alsa@digigram.com>
   7 *
   8 *   This program is free software; you can redistribute it and/or modify
   9 *   it under the terms of the GNU General Public License as published by
  10 *   the Free Software Foundation; either version 2 of the License, or
  11 *   (at your option) any later version.
  12 *
  13 *   This program is distributed in the hope that it will be useful,
  14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 *   GNU General Public License for more details.
  17 *
  18 *   You should have received a copy of the GNU General Public License
  19 *   along with this program; if not, write to the Free Software
  20 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21 */
  22
  23
  24#include <sound/driver.h>
  25#include <linux/init.h>
  26#include <linux/interrupt.h>
  27#include <linux/slab.h>
  28#include <linux/pci.h>
  29#include <linux/dma-mapping.h>
  30#include <linux/delay.h>
  31#include <linux/moduleparam.h>
  32#include <linux/mutex.h>
  33
  34#include <sound/core.h>
  35#include <sound/initval.h>
  36#include <sound/info.h>
  37#include <sound/control.h>
  38#include <sound/pcm.h>
  39#include <sound/pcm_params.h>
  40#include "pcxhr.h"
  41#include "pcxhr_mixer.h"
  42#include "pcxhr_hwdep.h"
  43#include "pcxhr_core.h"
  44
  45#define DRIVER_NAME "pcxhr"
  46
  47MODULE_AUTHOR("Markus Bollinger <bollinger@digigram.com>");
  48MODULE_DESCRIPTION("Digigram " DRIVER_NAME " " PCXHR_DRIVER_VERSION_STRING);
  49MODULE_LICENSE("GPL");
  50MODULE_SUPPORTED_DEVICE("{{Digigram," DRIVER_NAME "}}");
  51
  52static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;              /* Index 0-MAX */
  53static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;               /* ID for this card */
  54static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  55static int mono[SNDRV_CARDS];                                   /* capture in mono only */
  56
  57module_param_array(index, int, NULL, 0444);
  58MODULE_PARM_DESC(index, "Index value for Digigram " DRIVER_NAME " soundcard");
  59module_param_array(id, charp, NULL, 0444);
  60MODULE_PARM_DESC(id, "ID string for Digigram " DRIVER_NAME " soundcard");
  61module_param_array(enable, bool, NULL, 0444);
  62MODULE_PARM_DESC(enable, "Enable Digigram " DRIVER_NAME " soundcard");
  63module_param_array(mono, bool, NULL, 0444);
  64MODULE_PARM_DESC(mono, "Mono capture mode (default is stereo)");
  65
  66enum {
  67        PCI_ID_VX882HR,
  68        PCI_ID_PCX882HR,
  69        PCI_ID_VX881HR,
  70        PCI_ID_PCX881HR,
  71        PCI_ID_PCX1222HR,
  72        PCI_ID_PCX1221HR,
  73        PCI_ID_LAST
  74};
  75
  76static struct pci_device_id pcxhr_ids[] = {
  77        { 0x10b5, 0x9656, 0x1369, 0xb001, 0, 0, PCI_ID_VX882HR, },   /* VX882HR */
  78        { 0x10b5, 0x9656, 0x1369, 0xb101, 0, 0, PCI_ID_PCX882HR, },  /* PCX882HR */
  79        { 0x10b5, 0x9656, 0x1369, 0xb201, 0, 0, PCI_ID_VX881HR, },   /* VX881HR */
  80        { 0x10b5, 0x9656, 0x1369, 0xb301, 0, 0, PCI_ID_PCX881HR, },  /* PCX881HR */
  81        { 0x10b5, 0x9656, 0x1369, 0xb501, 0, 0, PCI_ID_PCX1222HR, }, /* PCX1222HR */
  82        { 0x10b5, 0x9656, 0x1369, 0xb701, 0, 0, PCI_ID_PCX1221HR, }, /* PCX1221HR */
  83        { 0, }
  84};
  85
  86MODULE_DEVICE_TABLE(pci, pcxhr_ids);
  87
  88struct board_parameters {
  89        char* board_name;
  90        short playback_chips;
  91        short capture_chips;
  92        short firmware_num;
  93};
  94static struct board_parameters pcxhr_board_params[] = {
  95[PCI_ID_VX882HR] =      { "VX882HR",   4, 4, 41, },
  96[PCI_ID_PCX882HR] =     { "PCX882HR",  4, 4, 41, },
  97[PCI_ID_VX881HR] =      { "VX881HR",   4, 4, 41, },
  98[PCI_ID_PCX881HR] =     { "PCX881HR",  4, 4, 41, },
  99[PCI_ID_PCX1222HR] =    { "PCX1222HR", 6, 1, 42, },
 100[PCI_ID_PCX1221HR] =    { "PCX1221HR", 6, 1, 42, },
 101};
 102
 103
 104static int pcxhr_pll_freq_register(unsigned int freq, unsigned int* pllreg,
 105                                   unsigned int* realfreq)
 106{
 107        unsigned int reg;
 108
 109        if (freq < 6900 || freq > 110250)
 110                return -EINVAL;
 111        reg = (28224000 * 10) / freq;
 112        reg = (reg + 5) / 10;
 113        if (reg < 0x200)
 114                *pllreg = reg + 0x800;
 115        else if (reg < 0x400)
 116                *pllreg = reg & 0x1ff;
 117        else if (reg < 0x800) {
 118                *pllreg = ((reg >> 1) & 0x1ff) + 0x200;
 119                reg &= ~1;
 120        } else {
 121                *pllreg = ((reg >> 2) & 0x1ff) + 0x400;
 122                reg &= ~3;
 123        }
 124        if (realfreq)
 125                *realfreq = ((28224000 * 10) / reg + 5) / 10;
 126        return 0;
 127}
 128
 129
 130#define PCXHR_FREQ_REG_MASK             0x1f
 131#define PCXHR_FREQ_QUARTZ_48000         0x00
 132#define PCXHR_FREQ_QUARTZ_24000         0x01
 133#define PCXHR_FREQ_QUARTZ_12000         0x09
 134#define PCXHR_FREQ_QUARTZ_32000         0x08
 135#define PCXHR_FREQ_QUARTZ_16000         0x04
 136#define PCXHR_FREQ_QUARTZ_8000          0x0c
 137#define PCXHR_FREQ_QUARTZ_44100         0x02
 138#define PCXHR_FREQ_QUARTZ_22050         0x0a
 139#define PCXHR_FREQ_QUARTZ_11025         0x06
 140#define PCXHR_FREQ_PLL                  0x05
 141#define PCXHR_FREQ_QUARTZ_192000        0x10
 142#define PCXHR_FREQ_QUARTZ_96000         0x18
 143#define PCXHR_FREQ_QUARTZ_176400        0x14
 144#define PCXHR_FREQ_QUARTZ_88200         0x1c
 145#define PCXHR_FREQ_QUARTZ_128000        0x12
 146#define PCXHR_FREQ_QUARTZ_64000         0x1a
 147
 148#define PCXHR_FREQ_WORD_CLOCK           0x0f
 149#define PCXHR_FREQ_SYNC_AES             0x0e
 150#define PCXHR_FREQ_AES_1                0x07
 151#define PCXHR_FREQ_AES_2                0x0b
 152#define PCXHR_FREQ_AES_3                0x03
 153#define PCXHR_FREQ_AES_4                0x0d
 154
 155#define PCXHR_MODIFY_CLOCK_S_BIT        0x04
 156
 157#define PCXHR_IRQ_TIMER_FREQ            92000
 158#define PCXHR_IRQ_TIMER_PERIOD          48
 159
 160static int pcxhr_get_clock_reg(struct pcxhr_mgr *mgr, unsigned int rate,
 161                               unsigned int *reg, unsigned int *freq)
 162{
 163        unsigned int val, realfreq, pllreg;
 164        struct pcxhr_rmh rmh;
 165        int err;
 166
 167        realfreq = rate;
 168        switch (mgr->use_clock_type) {
 169        case PCXHR_CLOCK_TYPE_INTERNAL :        /* clock by quartz or pll */
 170                switch (rate) {
 171                case 48000 :    val = PCXHR_FREQ_QUARTZ_48000;  break;
 172                case 24000 :    val = PCXHR_FREQ_QUARTZ_24000;  break;
 173                case 12000 :    val = PCXHR_FREQ_QUARTZ_12000;  break;
 174                case 32000 :    val = PCXHR_FREQ_QUARTZ_32000;  break;
 175                case 16000 :    val = PCXHR_FREQ_QUARTZ_16000;  break;
 176                case 8000 :     val = PCXHR_FREQ_QUARTZ_8000;   break;
 177                case 44100 :    val = PCXHR_FREQ_QUARTZ_44100;  break;
 178                case 22050 :    val = PCXHR_FREQ_QUARTZ_22050;  break;
 179                case 11025 :    val = PCXHR_FREQ_QUARTZ_11025;  break;
 180                case 192000 :   val = PCXHR_FREQ_QUARTZ_192000; break;
 181                case 96000 :    val = PCXHR_FREQ_QUARTZ_96000;  break;
 182                case 176400 :   val = PCXHR_FREQ_QUARTZ_176400; break;
 183                case 88200 :    val = PCXHR_FREQ_QUARTZ_88200;  break;
 184                case 128000 :   val = PCXHR_FREQ_QUARTZ_128000; break;
 185                case 64000 :    val = PCXHR_FREQ_QUARTZ_64000;  break;
 186                default :
 187                        val = PCXHR_FREQ_PLL;
 188                        /* get the value for the pll register */
 189                        err = pcxhr_pll_freq_register(rate, &pllreg, &realfreq);
 190                        if (err)
 191                                return err;
 192                        pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
 193                        rmh.cmd[0] |= IO_NUM_REG_GENCLK;
 194                        rmh.cmd[1]  = pllreg & MASK_DSP_WORD;
 195                        rmh.cmd[2]  = pllreg >> 24;
 196                        rmh.cmd_len = 3;
 197                        err = pcxhr_send_msg(mgr, &rmh);
 198                        if (err < 0) {
 199                                snd_printk(KERN_ERR
 200                                           "error CMD_ACCESS_IO_WRITE for PLL register : %x!\n",
 201                                           err );
 202                                return err;
 203                        }
 204                }
 205                break;
 206        case PCXHR_CLOCK_TYPE_WORD_CLOCK :      val = PCXHR_FREQ_WORD_CLOCK;    break;
 207        case PCXHR_CLOCK_TYPE_AES_SYNC :        val = PCXHR_FREQ_SYNC_AES;      break;
 208        case PCXHR_CLOCK_TYPE_AES_1 :           val = PCXHR_FREQ_AES_1;         break;
 209        case PCXHR_CLOCK_TYPE_AES_2 :           val = PCXHR_FREQ_AES_2;         break;
 210        case PCXHR_CLOCK_TYPE_AES_3 :           val = PCXHR_FREQ_AES_3;         break;
 211        case PCXHR_CLOCK_TYPE_AES_4 :           val = PCXHR_FREQ_AES_4;         break;
 212        default : return -EINVAL;
 213        }
 214        *reg = val;
 215        *freq = realfreq;
 216        return 0;
 217}
 218
 219
 220int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate)
 221{
 222        unsigned int val, realfreq, speed;
 223        struct pcxhr_rmh rmh;
 224        int err, changed;
 225
 226        if (rate == 0)
 227                return 0; /* nothing to do */
 228
 229        err = pcxhr_get_clock_reg(mgr, rate, &val, &realfreq);
 230        if (err)
 231                return err;
 232
 233        /* codec speed modes */
 234        if (rate < 55000)
 235                speed = 0;      /* single speed */
 236        else if (rate < 100000)
 237                speed = 1;      /* dual speed */
 238        else
 239                speed = 2;      /* quad speed */
 240        if (mgr->codec_speed != speed) {
 241                pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);      /* mute outputs */
 242                rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
 243                err = pcxhr_send_msg(mgr, &rmh);
 244                if (err)
 245                        return err;
 246
 247                pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);      /* set speed ratio */
 248                rmh.cmd[0] |= IO_NUM_SPEED_RATIO;
 249                rmh.cmd[1] = speed;
 250                rmh.cmd_len = 2;
 251                err = pcxhr_send_msg(mgr, &rmh);
 252                if (err)
 253                        return err;
 254        }
 255        /* set the new frequency */
 256        snd_printdd("clock register : set %x\n", val);
 257        err = pcxhr_write_io_num_reg_cont(mgr, PCXHR_FREQ_REG_MASK, val, &changed);
 258        if (err)
 259                return err;
 260        mgr->sample_rate_real = realfreq;
 261        mgr->cur_clock_type = mgr->use_clock_type;
 262
 263        /* unmute after codec speed modes */
 264        if (mgr->codec_speed != speed) {
 265                pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);       /* unmute outputs */
 266                rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
 267                err = pcxhr_send_msg(mgr, &rmh);
 268                if (err)
 269                        return err;
 270                mgr->codec_speed = speed;                       /* save new codec speed */
 271        }
 272
 273        if (changed) {
 274                pcxhr_init_rmh(&rmh, CMD_MODIFY_CLOCK);
 275                rmh.cmd[0] |= PCXHR_MODIFY_CLOCK_S_BIT;         /* resync fifos  */
 276                if (rate < PCXHR_IRQ_TIMER_FREQ)
 277                        rmh.cmd[1] = PCXHR_IRQ_TIMER_PERIOD;
 278                else
 279                        rmh.cmd[1] = PCXHR_IRQ_TIMER_PERIOD * 2;
 280                rmh.cmd[2] = rate;
 281                rmh.cmd_len = 3;
 282                err = pcxhr_send_msg(mgr, &rmh);
 283                if (err)
 284                        return err;
 285        }
 286        snd_printdd("pcxhr_set_clock to %dHz (realfreq=%d)\n", rate, realfreq);
 287        return 0;
 288}
 289
 290
 291int pcxhr_get_external_clock(struct pcxhr_mgr *mgr, enum pcxhr_clock_type clock_type,
 292                             int *sample_rate)
 293{
 294        struct pcxhr_rmh rmh;
 295        unsigned char reg;
 296        int err, rate;
 297
 298        switch (clock_type) {
 299        case PCXHR_CLOCK_TYPE_WORD_CLOCK :      reg = REG_STATUS_WORD_CLOCK;    break;
 300        case PCXHR_CLOCK_TYPE_AES_SYNC :        reg = REG_STATUS_AES_SYNC;      break;
 301        case PCXHR_CLOCK_TYPE_AES_1 :           reg = REG_STATUS_AES_1;         break;
 302        case PCXHR_CLOCK_TYPE_AES_2 :           reg = REG_STATUS_AES_2;         break;
 303        case PCXHR_CLOCK_TYPE_AES_3 :           reg = REG_STATUS_AES_3;         break;
 304        case PCXHR_CLOCK_TYPE_AES_4 :           reg = REG_STATUS_AES_4;         break;
 305        default : return -EINVAL;
 306        }
 307        pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
 308        rmh.cmd_len = 2;
 309        rmh.cmd[0] |= IO_NUM_REG_STATUS;
 310        if (mgr->last_reg_stat != reg) {
 311                rmh.cmd[1]  = reg;
 312                err = pcxhr_send_msg(mgr, &rmh);
 313                if (err)
 314                        return err;
 315                udelay(100);            /* wait minimum 2 sample_frames at 32kHz ! */
 316                mgr->last_reg_stat = reg;
 317        }
 318        rmh.cmd[1]  = REG_STATUS_CURRENT;
 319        err = pcxhr_send_msg(mgr, &rmh);
 320        if (err)
 321                return err;
 322        switch (rmh.stat[1] & 0x0f) {
 323        case REG_STATUS_SYNC_32000 :    rate = 32000; break;
 324        case REG_STATUS_SYNC_44100 :    rate = 44100; break;
 325        case REG_STATUS_SYNC_48000 :    rate = 48000; break;
 326        case REG_STATUS_SYNC_64000 :    rate = 64000; break;
 327        case REG_STATUS_SYNC_88200 :    rate = 88200; break;
 328        case REG_STATUS_SYNC_96000 :    rate = 96000; break;
 329        case REG_STATUS_SYNC_128000 :   rate = 128000; break;
 330        case REG_STATUS_SYNC_176400 :   rate = 176400; break;
 331        case REG_STATUS_SYNC_192000 :   rate = 192000; break;
 332        default: rate = 0;
 333        }
 334        snd_printdd("External clock is at %d Hz\n", rate);
 335        *sample_rate = rate;
 336        return 0;
 337}
 338
 339
 340/*
 341 *  start or stop playback/capture substream
 342 */
 343static int pcxhr_set_stream_state(struct pcxhr_stream *stream)
 344{
 345        int err;
 346        struct snd_pcxhr *chip;
 347        struct pcxhr_rmh rmh;
 348        int stream_mask, start;
 349
 350        if (stream->status == PCXHR_STREAM_STATUS_SCHEDULE_RUN)
 351                start = 1;
 352        else {
 353                if (stream->status != PCXHR_STREAM_STATUS_SCHEDULE_STOP) {
 354                        snd_printk(KERN_ERR "ERROR pcxhr_set_stream_state CANNOT be stopped\n");
 355                        return -EINVAL;
 356                }
 357                start = 0;
 358        }
 359        if (!stream->substream)
 360                return -EINVAL;
 361
 362        stream->timer_abs_periods = 0;
 363        stream->timer_period_frag = 0;            /* reset theoretical stream pos */
 364        stream->timer_buf_periods = 0;
 365        stream->timer_is_synced = 0;
 366
 367        stream_mask = stream->pipe->is_capture ? 1 : 1<<stream->substream->number;
 368
 369        pcxhr_init_rmh(&rmh, start ? CMD_START_STREAM : CMD_STOP_STREAM);
 370        pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture,
 371                                  stream->pipe->first_audio, 0, stream_mask);
 372
 373        chip = snd_pcm_substream_chip(stream->substream);
 374
 375        err = pcxhr_send_msg(chip->mgr, &rmh);
 376        if (err)
 377                snd_printk(KERN_ERR "ERROR pcxhr_set_stream_state err=%x;\n", err);
 378        stream->status = start ? PCXHR_STREAM_STATUS_STARTED : PCXHR_STREAM_STATUS_STOPPED;
 379        return err;
 380}
 381
 382#define HEADER_FMT_BASE_LIN             0xfed00000
 383#define HEADER_FMT_BASE_FLOAT           0xfad00000
 384#define HEADER_FMT_INTEL                0x00008000
 385#define HEADER_FMT_24BITS               0x00004000
 386#define HEADER_FMT_16BITS               0x00002000
 387#define HEADER_FMT_UPTO11               0x00000200
 388#define HEADER_FMT_UPTO32               0x00000100
 389#define HEADER_FMT_MONO                 0x00000080
 390
 391static int pcxhr_set_format(struct pcxhr_stream *stream)
 392{
 393        int err, is_capture, sample_rate, stream_num;
 394        struct snd_pcxhr *chip;
 395        struct pcxhr_rmh rmh;
 396        unsigned int header;
 397
 398        switch (stream->format) {
 399        case SNDRV_PCM_FORMAT_U8:
 400                header = HEADER_FMT_BASE_LIN;
 401                break;
 402        case SNDRV_PCM_FORMAT_S16_LE:
 403                header = HEADER_FMT_BASE_LIN | HEADER_FMT_16BITS | HEADER_FMT_INTEL;
 404                break;
 405        case SNDRV_PCM_FORMAT_S16_BE:
 406                header = HEADER_FMT_BASE_LIN | HEADER_FMT_16BITS;
 407                break;
 408        case SNDRV_PCM_FORMAT_S24_3LE:
 409                header = HEADER_FMT_BASE_LIN | HEADER_FMT_24BITS | HEADER_FMT_INTEL;
 410                break;
 411        case SNDRV_PCM_FORMAT_S24_3BE:
 412                header = HEADER_FMT_BASE_LIN | HEADER_FMT_24BITS;
 413                break;
 414        case SNDRV_PCM_FORMAT_FLOAT_LE:
 415                header = HEADER_FMT_BASE_FLOAT | HEADER_FMT_INTEL;
 416                break;
 417        default:
 418                snd_printk(KERN_ERR "error pcxhr_set_format() : unknown format\n");
 419                return -EINVAL;
 420        }
 421        chip = snd_pcm_substream_chip(stream->substream);
 422
 423        sample_rate = chip->mgr->sample_rate;
 424        if (sample_rate <= 32000 && sample_rate !=0) {
 425                if (sample_rate <= 11025)
 426                        header |= HEADER_FMT_UPTO11;
 427                else
 428                        header |= HEADER_FMT_UPTO32;
 429        }
 430        if (stream->channels == 1)
 431                header |= HEADER_FMT_MONO;
 432
 433        is_capture = stream->pipe->is_capture;
 434        stream_num = is_capture ? 0 : stream->substream->number;
 435
 436        pcxhr_init_rmh(&rmh, is_capture ? CMD_FORMAT_STREAM_IN : CMD_FORMAT_STREAM_OUT);
 437        pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio, stream_num, 0);
 438        if (is_capture)
 439                rmh.cmd[0] |= 1<<12;
 440        rmh.cmd[1] = 0;
 441        rmh.cmd[2] = header >> 8;
 442        rmh.cmd[3] = (header & 0xff) << 16;
 443        rmh.cmd_len = 4;
 444        err = pcxhr_send_msg(chip->mgr, &rmh);
 445        if (err)
 446                snd_printk(KERN_ERR "ERROR pcxhr_set_format err=%x;\n", err);
 447        return err;
 448}
 449
 450static int pcxhr_update_r_buffer(struct pcxhr_stream *stream)
 451{
 452        int err, is_capture, stream_num;
 453        struct pcxhr_rmh rmh;
 454        struct snd_pcm_substream *subs = stream->substream;
 455        struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 456
 457        is_capture = (subs->stream == SNDRV_PCM_STREAM_CAPTURE);
 458        stream_num = is_capture ? 0 : subs->number;
 459
 460        snd_printdd("pcxhr_update_r_buffer(pcm%c%d) : addr(%p) bytes(%zx) subs(%d)\n",
 461                    is_capture ? 'c' : 'p',
 462                    chip->chip_idx, (void*)subs->runtime->dma_addr,
 463                    subs->runtime->dma_bytes, subs->number);
 464
 465        pcxhr_init_rmh(&rmh, CMD_UPDATE_R_BUFFERS);
 466        pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio, stream_num, 0);
 467
 468        snd_assert(subs->runtime->dma_bytes < 0x200000);        /* max buffer size is 2 MByte */
 469        rmh.cmd[1] = subs->runtime->dma_bytes * 8;              /* size in bits */
 470        rmh.cmd[2] = subs->runtime->dma_addr >> 24;             /* most significant byte */
 471        rmh.cmd[2] |= 1<<19;                                    /* this is a circular buffer */
 472        rmh.cmd[3] = subs->runtime->dma_addr & MASK_DSP_WORD;   /* least 3 significant bytes */
 473        rmh.cmd_len = 4;
 474        err = pcxhr_send_msg(chip->mgr, &rmh);
 475        if (err)
 476                snd_printk(KERN_ERR "ERROR CMD_UPDATE_R_BUFFERS err=%x;\n", err);
 477        return err;
 478}
 479
 480
 481#if 0
 482static int pcxhr_pipe_sample_count(struct pcxhr_stream *stream, snd_pcm_uframes_t *sample_count)
 483{
 484        struct pcxhr_rmh rmh;
 485        int err;
 486        pcxhr_t *chip = snd_pcm_substream_chip(stream->substream);
 487        pcxhr_init_rmh(&rmh, CMD_PIPE_SAMPLE_COUNT);
 488        pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture, 0, 0,
 489                                  1<<stream->pipe->first_audio);
 490        err = pcxhr_send_msg(chip->mgr, &rmh);
 491        if (err == 0) {
 492                *sample_count = ((snd_pcm_uframes_t)rmh.stat[0]) << 24;
 493                *sample_count += (snd_pcm_uframes_t)rmh.stat[1];
 494        }
 495        snd_printdd("PIPE_SAMPLE_COUNT = %lx\n", *sample_count);
 496        return err;
 497}
 498#endif
 499
 500static inline int pcxhr_stream_scheduled_get_pipe(struct pcxhr_stream *stream,
 501                                                  struct pcxhr_pipe **pipe)
 502{
 503        if (stream->status == PCXHR_STREAM_STATUS_SCHEDULE_RUN) {
 504                *pipe = stream->pipe;
 505                return 1;
 506        }
 507        return 0;
 508}
 509
 510static void pcxhr_trigger_tasklet(unsigned long arg)
 511{
 512        unsigned long flags;
 513        int i, j, err;
 514        struct pcxhr_pipe *pipe;
 515        struct snd_pcxhr *chip;
 516        struct pcxhr_mgr *mgr = (struct pcxhr_mgr*)(arg);
 517        int capture_mask = 0;
 518        int playback_mask = 0;
 519
 520#ifdef CONFIG_SND_DEBUG_DETECT
 521        struct timeval my_tv1, my_tv2;
 522        do_gettimeofday(&my_tv1);
 523#endif
 524        mutex_lock(&mgr->setup_mutex);
 525
 526        /* check the pipes concerned and build pipe_array */
 527        for (i = 0; i < mgr->num_cards; i++) {
 528                chip = mgr->chip[i];
 529                for (j = 0; j < chip->nb_streams_capt; j++) {
 530                        if (pcxhr_stream_scheduled_get_pipe(&chip->capture_stream[j], &pipe))
 531                                capture_mask |= (1 << pipe->first_audio);
 532                }
 533                for (j = 0; j < chip->nb_streams_play; j++) {
 534                        if (pcxhr_stream_scheduled_get_pipe(&chip->playback_stream[j], &pipe)) {
 535                                playback_mask |= (1 << pipe->first_audio);
 536                                break;  /* add only once, as all playback streams of
 537                                         * one chip use the same pipe
 538                                         */
 539                        }
 540                }
 541        }
 542        if (capture_mask == 0 && playback_mask == 0) {
 543                mutex_unlock(&mgr->setup_mutex);
 544                snd_printk(KERN_ERR "pcxhr_trigger_tasklet : no pipes\n");
 545                return;
 546        }
 547
 548        snd_printdd("pcxhr_trigger_tasklet : playback_mask=%x capture_mask=%x\n",
 549                    playback_mask, capture_mask);
 550
 551        /* synchronous stop of all the pipes concerned */
 552        err = pcxhr_set_pipe_state(mgr,  playback_mask, capture_mask, 0);
 553        if (err) {
 554                mutex_unlock(&mgr->setup_mutex);
 555                snd_printk(KERN_ERR "pcxhr_trigger_tasklet : error stop pipes (P%x C%x)\n",
 556                           playback_mask, capture_mask);
 557                return;
 558        }
 559
 560        /* unfortunately the dsp lost format and buffer info with the stop pipe */
 561        for (i = 0; i < mgr->num_cards; i++) {
 562                struct pcxhr_stream *stream;
 563                chip = mgr->chip[i];
 564                for (j = 0; j < chip->nb_streams_capt; j++) {
 565                        stream = &chip->capture_stream[j];
 566                        if (pcxhr_stream_scheduled_get_pipe(stream, &pipe)) {
 567                                err = pcxhr_set_format(stream);
 568                                err = pcxhr_update_r_buffer(stream);
 569                        }
 570                }
 571                for (j = 0; j < chip->nb_streams_play; j++) {
 572                        stream = &chip->playback_stream[j];
 573                        if (pcxhr_stream_scheduled_get_pipe(stream, &pipe)) {
 574                                err = pcxhr_set_format(stream);
 575                                err = pcxhr_update_r_buffer(stream);
 576                        }
 577                }
 578        }
 579        /* start all the streams */
 580        for (i = 0; i < mgr->num_cards; i++) {
 581                struct pcxhr_stream *stream;
 582                chip = mgr->chip[i];
 583                for (j = 0; j < chip->nb_streams_capt; j++) {
 584                        stream = &chip->capture_stream[j];
 585                        if (pcxhr_stream_scheduled_get_pipe(stream, &pipe))
 586                                err = pcxhr_set_stream_state(stream);
 587                }
 588                for (j = 0; j < chip->nb_streams_play; j++) {
 589                        stream = &chip->playback_stream[j];
 590                        if (pcxhr_stream_scheduled_get_pipe(stream, &pipe))
 591                                err = pcxhr_set_stream_state(stream);
 592                }
 593        }
 594
 595        /* synchronous start of all the pipes concerned */
 596        err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
 597        if (err) {
 598                mutex_unlock(&mgr->setup_mutex);
 599                snd_printk(KERN_ERR "pcxhr_trigger_tasklet : error start pipes (P%x C%x)\n",
 600                           playback_mask, capture_mask);
 601                return;
 602        }
 603
 604        /* put the streams into the running state now (increment pointer by interrupt) */
 605        spin_lock_irqsave(&mgr->lock, flags);
 606        for ( i =0; i < mgr->num_cards; i++) {
 607                struct pcxhr_stream *stream;
 608                chip = mgr->chip[i];
 609                for(j = 0; j < chip->nb_streams_capt; j++) {
 610                        stream = &chip->capture_stream[j];
 611                        if(stream->status == PCXHR_STREAM_STATUS_STARTED)
 612                                stream->status = PCXHR_STREAM_STATUS_RUNNING;
 613                }
 614                for (j = 0; j < chip->nb_streams_play; j++) {
 615                        stream = &chip->playback_stream[j];
 616                        if (stream->status == PCXHR_STREAM_STATUS_STARTED) {
 617                                /* playback will already have advanced ! */
 618                                stream->timer_period_frag += PCXHR_GRANULARITY;
 619                                stream->status = PCXHR_STREAM_STATUS_RUNNING;
 620                        }
 621                }
 622        }
 623        spin_unlock_irqrestore(&mgr->lock, flags);
 624
 625        mutex_unlock(&mgr->setup_mutex);
 626
 627#ifdef CONFIG_SND_DEBUG_DETECT
 628        do_gettimeofday(&my_tv2);
 629        snd_printdd("***TRIGGER TASKLET*** TIME = %ld (err = %x)\n",
 630                    my_tv2.tv_usec - my_tv1.tv_usec, err);
 631#endif
 632}
 633
 634
 635/*
 636 *  trigger callback
 637 */
 638static int pcxhr_trigger(struct snd_pcm_substream *subs, int cmd)
 639{
 640        struct pcxhr_stream *stream;
 641        struct snd_pcm_substream *s;
 642
 643        switch (cmd) {
 644        case SNDRV_PCM_TRIGGER_START:
 645                snd_printdd("SNDRV_PCM_TRIGGER_START\n");
 646                if (snd_pcm_stream_linked(subs)) {
 647                        struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 648                        snd_pcm_group_for_each_entry(s, subs) {
 649                                if (snd_pcm_substream_chip(s) != chip)
 650                                        continue;
 651                                stream = s->runtime->private_data;
 652                                stream->status =
 653                                        PCXHR_STREAM_STATUS_SCHEDULE_RUN;
 654                                snd_pcm_trigger_done(s, subs);
 655                        }
 656                        tasklet_hi_schedule(&chip->mgr->trigger_taskq);
 657                } else {
 658                        stream = subs->runtime->private_data;
 659                        snd_printdd("Only one Substream %c %d\n",
 660                                    stream->pipe->is_capture ? 'C' : 'P',
 661                                    stream->pipe->first_audio);
 662                        if (pcxhr_set_format(stream))
 663                                return -EINVAL;
 664                        if (pcxhr_update_r_buffer(stream))
 665                                return -EINVAL;
 666
 667                        stream->status = PCXHR_STREAM_STATUS_SCHEDULE_RUN;
 668                        if (pcxhr_set_stream_state(stream))
 669                                return -EINVAL;
 670                        stream->status = PCXHR_STREAM_STATUS_RUNNING;
 671                }
 672                break;
 673        case SNDRV_PCM_TRIGGER_STOP:
 674                snd_printdd("SNDRV_PCM_TRIGGER_STOP\n");
 675                snd_pcm_group_for_each_entry(s, subs) {
 676                        stream = s->runtime->private_data;
 677                        stream->status = PCXHR_STREAM_STATUS_SCHEDULE_STOP;
 678                        if (pcxhr_set_stream_state(stream))
 679                                return -EINVAL;
 680                        snd_pcm_trigger_done(s, subs);
 681                }
 682                break;
 683        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 684        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 685                /* TODO */
 686        default:
 687                return -EINVAL;
 688        }
 689        return 0;
 690}
 691
 692
 693static int pcxhr_hardware_timer(struct pcxhr_mgr *mgr, int start)
 694{
 695        struct pcxhr_rmh rmh;
 696        int err;
 697
 698        pcxhr_init_rmh(&rmh, CMD_SET_TIMER_INTERRUPT);
 699        if (start) {
 700                mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID;    /* last dsp time invalid */
 701                rmh.cmd[0] |= PCXHR_GRANULARITY;
 702        }
 703        err = pcxhr_send_msg(mgr, &rmh);
 704        if (err < 0)
 705                snd_printk(KERN_ERR "error pcxhr_hardware_timer err(%x)\n", err);
 706        return err;
 707}
 708
 709/*
 710 *  prepare callback for all pcms
 711 */
 712static int pcxhr_prepare(struct snd_pcm_substream *subs)
 713{
 714        struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 715        struct pcxhr_mgr *mgr = chip->mgr;
 716        /*
 717        struct pcxhr_stream *stream = (pcxhr_stream_t*)subs->runtime->private_data;
 718        */
 719        int err = 0;
 720
 721        snd_printdd("pcxhr_prepare : period_size(%lx) periods(%x) buffer_size(%lx)\n",
 722                    subs->runtime->period_size, subs->runtime->periods,
 723                    subs->runtime->buffer_size);
 724
 725        /*
 726        if(subs->runtime->period_size <= PCXHR_GRANULARITY) {
 727                snd_printk(KERN_ERR "pcxhr_prepare : error period_size too small (%x)\n",
 728                           (unsigned int)subs->runtime->period_size);
 729                return -EINVAL;
 730        }
 731        */
 732
 733        mutex_lock(&mgr->setup_mutex);
 734
 735        do {
 736                /* if the stream was stopped before, format and buffer were reset */
 737                /*
 738                if(stream->status == PCXHR_STREAM_STATUS_STOPPED) {
 739                        err = pcxhr_set_format(stream);
 740                        if(err) break;
 741                        err = pcxhr_update_r_buffer(stream);
 742                        if(err) break;
 743                }
 744                */
 745
 746                /* only the first stream can choose the sample rate */
 747                /* the further opened streams will be limited to its frequency (see open) */
 748                /* set the clock only once (first stream) */
 749                if (mgr->sample_rate != subs->runtime->rate) {
 750                        err = pcxhr_set_clock(mgr, subs->runtime->rate);
 751                        if (err)
 752                                break;
 753                        if (mgr->sample_rate == 0)
 754                                /* start the DSP-timer */
 755                                err = pcxhr_hardware_timer(mgr, 1);
 756                        mgr->sample_rate = subs->runtime->rate;
 757                }
 758        } while(0);     /* do only once (so we can use break instead of goto) */
 759
 760        mutex_unlock(&mgr->setup_mutex);
 761
 762        return err;
 763}
 764
 765
 766/*
 767 *  HW_PARAMS callback for all pcms
 768 */
 769static int pcxhr_hw_params(struct snd_pcm_substream *subs,
 770                           struct snd_pcm_hw_params *hw)
 771{
 772        struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 773        struct pcxhr_mgr *mgr = chip->mgr;
 774        struct pcxhr_stream *stream = subs->runtime->private_data;
 775        snd_pcm_format_t format;
 776        int err;
 777        int channels;
 778
 779        /* set up channels */
 780        channels = params_channels(hw);
 781
 782        /*  set up format for the stream */
 783        format = params_format(hw);
 784
 785        mutex_lock(&mgr->setup_mutex);
 786
 787        stream->channels = channels;
 788        stream->format = format;
 789
 790        /* set the format to the board */
 791        /*
 792        err = pcxhr_set_format(stream);
 793        if(err) {
 794                mutex_unlock(&mgr->setup_mutex);
 795                return err;
 796        }
 797        */
 798        /* allocate buffer */
 799        err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
 800
 801        /*
 802        if (err > 0) {
 803                err = pcxhr_update_r_buffer(stream);
 804        }
 805        */
 806        mutex_unlock(&mgr->setup_mutex);
 807
 808        return err;
 809}
 810
 811static int pcxhr_hw_free(struct snd_pcm_substream *subs)
 812{
 813        snd_pcm_lib_free_pages(subs);
 814        return 0;
 815}
 816
 817
 818/*
 819 *  CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
 820 */
 821static struct snd_pcm_hardware pcxhr_caps =
 822{
 823        .info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 824                              SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
 825                              0 /*SNDRV_PCM_INFO_PAUSE*/),
 826        .formats          = ( SNDRV_PCM_FMTBIT_U8 |
 827                              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
 828                              SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
 829                              SNDRV_PCM_FMTBIT_FLOAT_LE ),
 830        .rates            = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_192000,
 831        .rate_min         = 8000,
 832        .rate_max         = 192000,
 833        .channels_min     = 1,
 834        .channels_max     = 2,
 835        .buffer_bytes_max = (32*1024),
 836        /* 1 byte == 1 frame U8 mono (PCXHR_GRANULARITY is frames!) */
 837        .period_bytes_min = (2*PCXHR_GRANULARITY),
 838        .period_bytes_max = (16*1024),
 839        .periods_min      = 2,
 840        .periods_max      = (32*1024/PCXHR_GRANULARITY),
 841};
 842
 843
 844static int pcxhr_open(struct snd_pcm_substream *subs)
 845{
 846        struct snd_pcxhr       *chip = snd_pcm_substream_chip(subs);
 847        struct pcxhr_mgr       *mgr = chip->mgr;
 848        struct snd_pcm_runtime *runtime = subs->runtime;
 849        struct pcxhr_stream    *stream;
 850        int                 is_capture;
 851
 852        mutex_lock(&mgr->setup_mutex);
 853
 854        /* copy the struct snd_pcm_hardware struct */
 855        runtime->hw = pcxhr_caps;
 856
 857        if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK ) {
 858                snd_printdd("pcxhr_open playback chip%d subs%d\n",
 859                            chip->chip_idx, subs->number);
 860                is_capture = 0;
 861                stream = &chip->playback_stream[subs->number];
 862        } else {
 863                snd_printdd("pcxhr_open capture chip%d subs%d\n",
 864                            chip->chip_idx, subs->number);
 865                is_capture = 1;
 866                if (mgr->mono_capture)
 867                        runtime->hw.channels_max = 1;
 868                else
 869                        runtime->hw.channels_min = 2;
 870                stream = &chip->capture_stream[subs->number];
 871        }
 872        if (stream->status != PCXHR_STREAM_STATUS_FREE){
 873                /* streams in use */
 874                snd_printk(KERN_ERR "pcxhr_open chip%d subs%d in use\n",
 875                           chip->chip_idx, subs->number);
 876                mutex_unlock(&mgr->setup_mutex);
 877                return -EBUSY;
 878        }
 879
 880        /* if a sample rate is already used or fixed by external clock,
 881         * the stream cannot change
 882         */
 883        if (mgr->sample_rate)
 884                runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
 885        else {
 886                if (mgr->use_clock_type != PCXHR_CLOCK_TYPE_INTERNAL) {
 887                        int external_rate;
 888                        if (pcxhr_get_external_clock(mgr, mgr->use_clock_type,
 889                                                     &external_rate) ||
 890                            external_rate == 0) {
 891                                /* cannot detect the external clock rate */
 892                                mutex_unlock(&mgr->setup_mutex);
 893                                return -EBUSY;
 894                        }
 895                        runtime->hw.rate_min = runtime->hw.rate_max = external_rate;
 896                }
 897        }
 898
 899        stream->status      = PCXHR_STREAM_STATUS_OPEN;
 900        stream->substream   = subs;
 901        stream->channels    = 0; /* not configured yet */
 902
 903        runtime->private_data = stream;
 904
 905        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 4);
 906        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);
 907
 908        snd_pcm_set_sync(subs);
 909
 910        mgr->ref_count_rate++;
 911
 912        mutex_unlock(&mgr->setup_mutex);
 913        return 0;
 914}
 915
 916
 917static int pcxhr_close(struct snd_pcm_substream *subs)
 918{
 919        struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 920        struct pcxhr_mgr *mgr = chip->mgr;
 921        struct pcxhr_stream *stream = subs->runtime->private_data;
 922
 923        mutex_lock(&mgr->setup_mutex);
 924
 925        snd_printdd("pcxhr_close chip%d subs%d\n", chip->chip_idx, subs->number);
 926
 927        /* sample rate released */
 928        if (--mgr->ref_count_rate == 0) {
 929                mgr->sample_rate = 0;           /* the sample rate is no more locked */
 930                pcxhr_hardware_timer(mgr, 0);   /* stop the DSP-timer */
 931        }
 932
 933        stream->status    = PCXHR_STREAM_STATUS_FREE;
 934        stream->substream = NULL;
 935
 936        mutex_unlock(&mgr->setup_mutex);
 937
 938        return 0;
 939}
 940
 941
 942static snd_pcm_uframes_t pcxhr_stream_pointer(struct snd_pcm_substream *subs)
 943{
 944        unsigned long flags;
 945        u_int32_t timer_period_frag;
 946        int timer_buf_periods;
 947        struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 948        struct snd_pcm_runtime *runtime = subs->runtime;
 949        struct pcxhr_stream *stream  = runtime->private_data;
 950
 951        spin_lock_irqsave(&chip->mgr->lock, flags);
 952
 953        /* get the period fragment and the nb of periods in the buffer */
 954        timer_period_frag = stream->timer_period_frag;
 955        timer_buf_periods = stream->timer_buf_periods;
 956
 957        spin_unlock_irqrestore(&chip->mgr->lock, flags);
 958
 959        return (snd_pcm_uframes_t)((timer_buf_periods * runtime->period_size) +
 960                                   timer_period_frag);
 961}
 962
 963
 964static struct snd_pcm_ops pcxhr_ops = {
 965        .open      = pcxhr_open,
 966        .close     = pcxhr_close,
 967        .ioctl     = snd_pcm_lib_ioctl,
 968        .prepare   = pcxhr_prepare,
 969        .hw_params = pcxhr_hw_params,
 970        .hw_free   = pcxhr_hw_free,
 971        .trigger   = pcxhr_trigger,
 972        .pointer   = pcxhr_stream_pointer,
 973};
 974
 975/*
 976 */
 977int pcxhr_create_pcm(struct snd_pcxhr *chip)
 978{
 979        int err;
 980        struct snd_pcm *pcm;
 981        char name[32];
 982
 983        sprintf(name, "pcxhr %d", chip->chip_idx);
 984        if ((err = snd_pcm_new(chip->card, name, 0,
 985                               chip->nb_streams_play,
 986                               chip->nb_streams_capt, &pcm)) < 0) {
 987                snd_printk(KERN_ERR "cannot create pcm %s\n", name);
 988                return err;
 989        }
 990        pcm->private_data = chip;
 991
 992        if (chip->nb_streams_play)
 993                snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcxhr_ops);
 994        if (chip->nb_streams_capt)
 995                snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcxhr_ops);
 996
 997        pcm->info_flags = 0;
 998        strcpy(pcm->name, name);
 999
1000        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1001                                              snd_dma_pci_data(chip->mgr->pci),
1002                                              32*1024, 32*1024);
1003        chip->pcm = pcm;
1004        return 0;
1005}
1006
1007static int pcxhr_chip_free(struct snd_pcxhr *chip)
1008{
1009        kfree(chip);
1010        return 0;
1011}
1012
1013static int pcxhr_chip_dev_free(struct snd_device *device)
1014{
1015        struct snd_pcxhr *chip = device->device_data;
1016        return pcxhr_chip_free(chip);
1017}
1018
1019
1020/*
1021 */
1022static int __devinit pcxhr_create(struct pcxhr_mgr *mgr, struct snd_card *card, int idx)
1023{
1024        int err;
1025        struct snd_pcxhr *chip;
1026        static struct snd_device_ops ops = {
1027                .dev_free = pcxhr_chip_dev_free,
1028        };
1029
1030        mgr->chip[idx] = chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1031        if (! chip) {
1032                snd_printk(KERN_ERR "cannot allocate chip\n");
1033                return -ENOMEM;
1034        }
1035
1036        chip->card = card;
1037        chip->chip_idx = idx;
1038        chip->mgr = mgr;
1039
1040        if (idx < mgr->playback_chips)
1041                /* stereo or mono streams */
1042                chip->nb_streams_play = PCXHR_PLAYBACK_STREAMS;
1043
1044        if (idx < mgr->capture_chips) {
1045                if (mgr->mono_capture)
1046                        chip->nb_streams_capt = 2;      /* 2 mono streams (left+right) */
1047                else
1048                        chip->nb_streams_capt = 1;      /* or 1 stereo stream */
1049        }
1050
1051        if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1052                pcxhr_chip_free(chip);
1053                return err;
1054        }
1055
1056        snd_card_set_dev(card, &mgr->pci->dev);
1057
1058        return 0;
1059}
1060
1061/* proc interface */
1062static void pcxhr_proc_info(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1063{
1064        struct snd_pcxhr *chip = entry->private_data;
1065        struct pcxhr_mgr *mgr = chip->mgr;
1066
1067        snd_iprintf(buffer, "\n%s\n", mgr->longname);
1068
1069        /* stats available when embedded DSP is running */
1070        if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1071                struct pcxhr_rmh rmh;
1072                short ver_maj = (mgr->dsp_version >> 16) & 0xff;
1073                short ver_min = (mgr->dsp_version >> 8) & 0xff;
1074                short ver_build = mgr->dsp_version & 0xff;
1075                snd_iprintf(buffer, "module version %s\n", PCXHR_DRIVER_VERSION_STRING);
1076                snd_iprintf(buffer, "dsp version %d.%d.%d\n", ver_maj, ver_min, ver_build);
1077                if (mgr->board_has_analog)
1078                        snd_iprintf(buffer, "analog io available\n");
1079                else
1080                        snd_iprintf(buffer, "digital only board\n");
1081
1082                /* calc cpu load of the dsp */
1083                pcxhr_init_rmh(&rmh, CMD_GET_DSP_RESOURCES);
1084                if( ! pcxhr_send_msg(mgr, &rmh) ) {
1085                        int cur = rmh.stat[0];
1086                        int ref = rmh.stat[1];
1087                        if (ref > 0) {
1088                                if (mgr->sample_rate_real != 0 &&
1089                                    mgr->sample_rate_real != 48000) {
1090                                        ref = (ref * 48000) / mgr->sample_rate_real;
1091                                        if (mgr->sample_rate_real >= PCXHR_IRQ_TIMER_FREQ)
1092                                                ref *= 2;
1093                                }
1094                                cur = 100 - (100 * cur) / ref;
1095                                snd_iprintf(buffer, "cpu load    %d%%\n", cur);
1096                                snd_iprintf(buffer, "buffer pool %d/%d kWords\n",
1097                                            rmh.stat[2], rmh.stat[3]);
1098                        }
1099                }
1100                snd_iprintf(buffer, "dma granularity : %d\n", PCXHR_GRANULARITY);
1101                snd_iprintf(buffer, "dsp time errors : %d\n", mgr->dsp_time_err);
1102                snd_iprintf(buffer, "dsp async pipe xrun errors : %d\n",
1103                            mgr->async_err_pipe_xrun);
1104                snd_iprintf(buffer, "dsp async stream xrun errors : %d\n",
1105                            mgr->async_err_stream_xrun);
1106                snd_iprintf(buffer, "dsp async last other error : %x\n",
1107                            mgr->async_err_other_last);
1108                /* debug zone dsp */
1109                rmh.cmd[0] = 0x4200 + PCXHR_SIZE_MAX_STATUS;
1110                rmh.cmd_len = 1;
1111                rmh.stat_len = PCXHR_SIZE_MAX_STATUS;
1112                rmh.dsp_stat = 0;
1113                rmh.cmd_idx = CMD_LAST_INDEX;
1114                if( ! pcxhr_send_msg(mgr, &rmh) ) {
1115                        int i;
1116                        for (i = 0; i < rmh.stat_len; i++)
1117                                snd_iprintf(buffer, "debug[%02d] = %06x\n", i,  rmh.stat[i]);
1118                }
1119        } else
1120                snd_iprintf(buffer, "no firmware loaded\n");
1121        snd_iprintf(buffer, "\n");
1122}
1123static void pcxhr_proc_sync(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1124{
1125        struct snd_pcxhr *chip = entry->private_data;
1126        struct pcxhr_mgr *mgr = chip->mgr;
1127        static char *texts[7] = {
1128                "Internal", "Word", "AES Sync", "AES 1", "AES 2", "AES 3", "AES 4"
1129        };
1130
1131        snd_iprintf(buffer, "\n%s\n", mgr->longname);
1132        snd_iprintf(buffer, "Current Sample Clock\t: %s\n", texts[mgr->cur_clock_type]);
1133        snd_iprintf(buffer, "Current Sample Rate\t= %d\n", mgr->sample_rate_real);
1134
1135        /* commands available when embedded DSP is running */
1136        if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1137                int i, err, sample_rate;
1138                for (i = PCXHR_CLOCK_TYPE_WORD_CLOCK; i< (3 + mgr->capture_chips); i++) {
1139                        err = pcxhr_get_external_clock(mgr, i, &sample_rate);
1140                        if (err)
1141                                break;
1142                        snd_iprintf(buffer, "%s Clock\t\t= %d\n", texts[i], sample_rate);
1143                }
1144        } else
1145                snd_iprintf(buffer, "no firmware loaded\n");
1146        snd_iprintf(buffer, "\n");
1147}
1148
1149static void __devinit pcxhr_proc_init(struct snd_pcxhr *chip)
1150{
1151        struct snd_info_entry *entry;
1152
1153        if (! snd_card_proc_new(chip->card, "info", &entry))
1154                snd_info_set_text_ops(entry, chip, pcxhr_proc_info);
1155        if (! snd_card_proc_new(chip->card, "sync", &entry))
1156                snd_info_set_text_ops(entry, chip, pcxhr_proc_sync);
1157}
1158/* end of proc interface */
1159
1160/*
1161 * release all the cards assigned to a manager instance
1162 */
1163static int pcxhr_free(struct pcxhr_mgr *mgr)
1164{
1165        unsigned int i;
1166
1167        for (i = 0; i < mgr->num_cards; i++) {
1168                if (mgr->chip[i])
1169                        snd_card_free(mgr->chip[i]->card);
1170        }
1171
1172        /* reset board if some firmware was loaded */
1173        if(mgr->dsp_loaded) {
1174                pcxhr_reset_board(mgr);
1175                snd_printdd("reset pcxhr !\n");
1176        }
1177
1178        /* release irq  */
1179        if (mgr->irq >= 0)
1180                free_irq(mgr->irq, mgr);
1181
1182        pci_release_regions(mgr->pci);
1183
1184        /* free hostport purgebuffer */
1185        if (mgr->hostport.area) {
1186                snd_dma_free_pages(&mgr->hostport);
1187                mgr->hostport.area = NULL;
1188        }
1189
1190        kfree(mgr->prmh);
1191
1192        pci_disable_device(mgr->pci);
1193        kfree(mgr);
1194        return 0;
1195}
1196
1197/*
1198 *    probe function - creates the card manager
1199 */
1200static int __devinit pcxhr_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1201{
1202        static int dev;
1203        struct pcxhr_mgr *mgr;
1204        unsigned int i;
1205        int err;
1206        size_t size;
1207        char *card_name;
1208
1209        if (dev >= SNDRV_CARDS)
1210                return -ENODEV;
1211        if (! enable[dev]) {
1212                dev++;
1213                return -ENOENT;
1214        }
1215
1216        /* enable PCI device */
1217        if ((err = pci_enable_device(pci)) < 0)
1218                return err;
1219        pci_set_master(pci);
1220
1221        /* check if we can restrict PCI DMA transfers to 32 bits */
1222        if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1223                snd_printk(KERN_ERR "architecture does not support 32bit PCI busmaster DMA\n");
1224                pci_disable_device(pci);
1225                return -ENXIO;
1226        }
1227
1228        /* alloc card manager */
1229        mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1230        if (! mgr) {
1231                pci_disable_device(pci);
1232                return -ENOMEM;
1233        }
1234
1235        snd_assert(pci_id->driver_data < PCI_ID_LAST, return -ENODEV);
1236        card_name = pcxhr_board_params[pci_id->driver_data].board_name;
1237        mgr->playback_chips = pcxhr_board_params[pci_id->driver_data].playback_chips;
1238        mgr->capture_chips  = pcxhr_board_params[pci_id->driver_data].capture_chips;
1239        mgr->firmware_num  = pcxhr_board_params[pci_id->driver_data].firmware_num;
1240        mgr->mono_capture = mono[dev];
1241
1242        /* resource assignment */
1243        if ((err = pci_request_regions(pci, card_name)) < 0) {
1244                kfree(mgr);
1245                pci_disable_device(pci);
1246                return err;
1247        }
1248        for (i = 0; i < 3; i++)
1249                mgr->port[i] = pci_resource_start(pci, i);
1250
1251        mgr->pci = pci;
1252        mgr->irq = -1;
1253
1254        if (request_irq(pci->irq, pcxhr_interrupt, IRQF_SHARED,
1255                        card_name, mgr)) {
1256                snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1257                pcxhr_free(mgr);
1258                return -EBUSY;
1259        }
1260        mgr->irq = pci->irq;
1261
1262        sprintf(mgr->shortname, "Digigram %s", card_name);
1263        sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, 0x%lx irq %i", mgr->shortname,
1264                mgr->port[0], mgr->port[1], mgr->port[2], mgr->irq);
1265
1266        /* ISR spinlock  */
1267        spin_lock_init(&mgr->lock);
1268        spin_lock_init(&mgr->msg_lock);
1269
1270        /* init setup mutex*/
1271        mutex_init(&mgr->setup_mutex);
1272
1273        /* init taslket */
1274        tasklet_init(&mgr->msg_taskq, pcxhr_msg_tasklet, (unsigned long) mgr);
1275        tasklet_init(&mgr->trigger_taskq, pcxhr_trigger_tasklet, (unsigned long) mgr);
1276        mgr->prmh = kmalloc(sizeof(*mgr->prmh) + 
1277                            sizeof(u32) * (PCXHR_SIZE_MAX_LONG_STATUS - PCXHR_SIZE_MAX_STATUS),
1278                            GFP_KERNEL);
1279        if (! mgr->prmh) {
1280                pcxhr_free(mgr);
1281                return -ENOMEM;
1282        }
1283
1284        for (i=0; i < PCXHR_MAX_CARDS; i++) {
1285                struct snd_card *card;
1286                char tmpid[16];
1287                int idx;
1288
1289                if (i >= max(mgr->playback_chips, mgr->capture_chips))
1290                        break;
1291                mgr->num_cards++;
1292
1293                if (index[dev] < 0)
1294                        idx = index[dev];
1295                else
1296                        idx = index[dev] + i;
1297
1298                snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : card_name, i);
1299                card = snd_card_new(idx, tmpid, THIS_MODULE, 0);
1300
1301                if (! card) {
1302                        snd_printk(KERN_ERR "cannot allocate the card %d\n", i);
1303                        pcxhr_free(mgr);
1304                        return -ENOMEM;
1305                }
1306
1307                strcpy(card->driver, DRIVER_NAME);
1308                sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1309                sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1310
1311                if ((err = pcxhr_create(mgr, card, i)) < 0) {
1312                        pcxhr_free(mgr);
1313                        return err;
1314                }
1315
1316                if (i == 0)
1317                        /* init proc interface only for chip0 */
1318                        pcxhr_proc_init(mgr->chip[i]);
1319
1320                if ((err = snd_card_register(card)) < 0) {
1321                        pcxhr_free(mgr);
1322                        return err;
1323                }
1324        }
1325
1326        /* create hostport purgebuffer */
1327        size = PAGE_ALIGN(sizeof(struct pcxhr_hostport));
1328        if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1329                                size, &mgr->hostport) < 0) {
1330                pcxhr_free(mgr);
1331                return -ENOMEM;
1332        }
1333        /* init purgebuffer */
1334        memset(mgr->hostport.area, 0, size);
1335
1336        /* create a DSP loader */
1337        err = pcxhr_setup_firmware(mgr);
1338        if (err < 0) {
1339                pcxhr_free(mgr);
1340                return err;
1341        }
1342
1343        pci_set_drvdata(pci, mgr);
1344        dev++;
1345        return 0;
1346}
1347
1348static void __devexit pcxhr_remove(struct pci_dev *pci)
1349{
1350        pcxhr_free(pci_get_drvdata(pci));
1351        pci_set_drvdata(pci, NULL);
1352}
1353
1354static struct pci_driver driver = {
1355        .name = "Digigram pcxhr",
1356        .id_table = pcxhr_ids,
1357        .probe = pcxhr_probe,
1358        .remove = __devexit_p(pcxhr_remove),
1359};
1360
1361static int __init pcxhr_module_init(void)
1362{
1363        return pci_register_driver(&driver);
1364}
1365
1366static void __exit pcxhr_module_exit(void)
1367{
1368        pci_unregister_driver(&driver);
1369}
1370
1371module_init(pcxhr_module_init)
1372module_exit(pcxhr_module_exit)
1373