git.oblomov.eu Git - linux-2.6/blob - sound/pci/pcxhr/pcxhr.c

   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
  47 MODULE_AUTHOR("Markus Bollinger <bollinger@digigram.com>");
  48 MODULE_DESCRIPTION("Digigram " DRIVER_NAME " " PCXHR_DRIVER_VERSION_STRING);
  49 MODULE_LICENSE("GPL");
  50 MODULE_SUPPORTED_DEVICE("{{Digigram," DRIVER_NAME "}}");
  51
  52 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;              /* Index 0-MAX */
  53 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;               /* ID for this card */
  54 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  55 static int mono[SNDRV_CARDS];                                   /* capture in mono only */
  56
  57 module_param_array(index, int, NULL, 0444);
  58 MODULE_PARM_DESC(index, "Index value for Digigram " DRIVER_NAME " soundcard");
  59 module_param_array(id, charp, NULL, 0444);
  60 MODULE_PARM_DESC(id, "ID string for Digigram " DRIVER_NAME " soundcard");
  61 module_param_array(enable, bool, NULL, 0444);
  62 MODULE_PARM_DESC(enable, "Enable Digigram " DRIVER_NAME " soundcard");
  63 module_param_array(mono, bool, NULL, 0444);
  64 MODULE_PARM_DESC(mono, "Mono capture mode (default is stereo)");
  65
  66 enum {
  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
  76 static 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
  86 MODULE_DEVICE_TABLE(pci, pcxhr_ids);
  87
  88 struct board_parameters {
  89         char* board_name;
  90         short playback_chips;
  91         short capture_chips;
  92         short firmware_num;
  93 };
  94 static 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
 104 static 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
 160 static 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
 220 int 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
 291 int 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  */
 343 static 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
 391 static 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
 450 static 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
 482 static 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
 500 static 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
 510 static 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  */
 638 static 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
 693 static 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  */
 712 static 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  */
 769 static 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
 811 static 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  */
 821 static 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
 844 static 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
 917 static 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
 942 static 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
 964 static 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  */
 977 int 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
1007 static int pcxhr_chip_free(struct snd_pcxhr *chip)
1008 {
1009         kfree(chip);
1010         return 0;
1011 }
1012
1013 static 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  */
1022 static 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 */
1062 static 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 }
1123 static 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
1149 static 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  */
1163 static 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  */
1200 static 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
1348 static void __devexit pcxhr_remove(struct pci_dev *pci)
1349 {
1350         pcxhr_free(pci_get_drvdata(pci));
1351         pci_set_drvdata(pci, NULL);
1352 }
1353
1354 static 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
1361 static int __init pcxhr_module_init(void)
1362 {
1363         return pci_register_driver(&driver);
1364 }
1365
1366 static void __exit pcxhr_module_exit(void)
1367 {
1368         pci_unregister_driver(&driver);
1369 }
1370
1371 module_init(pcxhr_module_init)
1372 module_exit(pcxhr_module_exit)