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         int i;
 643
 644         switch (cmd) {
 645         case SNDRV_PCM_TRIGGER_START:
 646                 snd_printdd("SNDRV_PCM_TRIGGER_START\n");
 647                 i = 0;
 648                 snd_pcm_group_for_each_entry(s, subs) {
 649                         stream = s->runtime->private_data;
 650                         stream->status = PCXHR_STREAM_STATUS_SCHEDULE_RUN;
 651                         snd_pcm_trigger_done(s, subs);
 652                         i++;
 653                 }
 654                 if (i==1) {
 655                         snd_printdd("Only one Substream %c %d\n",
 656                                     stream->pipe->is_capture ? 'C' : 'P',
 657                                     stream->pipe->first_audio);
 658                         if (pcxhr_set_format(stream))
 659                                 return -EINVAL;
 660                         if (pcxhr_update_r_buffer(stream))
 661                                 return -EINVAL;
 662
 663                         if (pcxhr_set_stream_state(stream))
 664                                 return -EINVAL;
 665                         stream->status = PCXHR_STREAM_STATUS_RUNNING;
 666                 } else {
 667                         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 668                         tasklet_hi_schedule(&chip->mgr->trigger_taskq);
 669                 }
 670                 break;
 671         case SNDRV_PCM_TRIGGER_STOP:
 672                 snd_printdd("SNDRV_PCM_TRIGGER_STOP\n");
 673                 snd_pcm_group_for_each_entry(s, subs) {
 674                         stream = s->runtime->private_data;
 675                         stream->status = PCXHR_STREAM_STATUS_SCHEDULE_STOP;
 676                         if (pcxhr_set_stream_state(stream))
 677                                 return -EINVAL;
 678                         snd_pcm_trigger_done(s, subs);
 679                 }
 680                 break;
 681         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 682         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 683                 /* TODO */
 684         default:
 685                 return -EINVAL;
 686         }
 687         return 0;
 688 }
 689
 690
 691 static int pcxhr_hardware_timer(struct pcxhr_mgr *mgr, int start)
 692 {
 693         struct pcxhr_rmh rmh;
 694         int err;
 695
 696         pcxhr_init_rmh(&rmh, CMD_SET_TIMER_INTERRUPT);
 697         if (start) {
 698                 mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID;    /* last dsp time invalid */
 699                 rmh.cmd[0] |= PCXHR_GRANULARITY;
 700         }
 701         err = pcxhr_send_msg(mgr, &rmh);
 702         if (err < 0)
 703                 snd_printk(KERN_ERR "error pcxhr_hardware_timer err(%x)\n", err);
 704         return err;
 705 }
 706
 707 /*
 708  *  prepare callback for all pcms
 709  */
 710 static int pcxhr_prepare(struct snd_pcm_substream *subs)
 711 {
 712         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 713         struct pcxhr_mgr *mgr = chip->mgr;
 714         /*
 715         struct pcxhr_stream *stream = (pcxhr_stream_t*)subs->runtime->private_data;
 716         */
 717         int err = 0;
 718
 719         snd_printdd("pcxhr_prepare : period_size(%lx) periods(%x) buffer_size(%lx)\n",
 720                     subs->runtime->period_size, subs->runtime->periods,
 721                     subs->runtime->buffer_size);
 722
 723         /*
 724         if(subs->runtime->period_size <= PCXHR_GRANULARITY) {
 725                 snd_printk(KERN_ERR "pcxhr_prepare : error period_size too small (%x)\n",
 726                            (unsigned int)subs->runtime->period_size);
 727                 return -EINVAL;
 728         }
 729         */
 730
 731         mutex_lock(&mgr->setup_mutex);
 732
 733         do {
 734                 /* if the stream was stopped before, format and buffer were reset */
 735                 /*
 736                 if(stream->status == PCXHR_STREAM_STATUS_STOPPED) {
 737                         err = pcxhr_set_format(stream);
 738                         if(err) break;
 739                         err = pcxhr_update_r_buffer(stream);
 740                         if(err) break;
 741                 }
 742                 */
 743
 744                 /* only the first stream can choose the sample rate */
 745                 /* the further opened streams will be limited to its frequency (see open) */
 746                 /* set the clock only once (first stream) */
 747                 if (mgr->sample_rate != subs->runtime->rate) {
 748                         err = pcxhr_set_clock(mgr, subs->runtime->rate);
 749                         if (err)
 750                                 break;
 751                         if (mgr->sample_rate == 0)
 752                                 /* start the DSP-timer */
 753                                 err = pcxhr_hardware_timer(mgr, 1);
 754                         mgr->sample_rate = subs->runtime->rate;
 755                 }
 756         } while(0);     /* do only once (so we can use break instead of goto) */
 757
 758         mutex_unlock(&mgr->setup_mutex);
 759
 760         return err;
 761 }
 762
 763
 764 /*
 765  *  HW_PARAMS callback for all pcms
 766  */
 767 static int pcxhr_hw_params(struct snd_pcm_substream *subs,
 768                            struct snd_pcm_hw_params *hw)
 769 {
 770         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 771         struct pcxhr_mgr *mgr = chip->mgr;
 772         struct pcxhr_stream *stream = subs->runtime->private_data;
 773         snd_pcm_format_t format;
 774         int err;
 775         int channels;
 776
 777         /* set up channels */
 778         channels = params_channels(hw);
 779
 780         /*  set up format for the stream */
 781         format = params_format(hw);
 782
 783         mutex_lock(&mgr->setup_mutex);
 784
 785         stream->channels = channels;
 786         stream->format = format;
 787
 788         /* set the format to the board */
 789         /*
 790         err = pcxhr_set_format(stream);
 791         if(err) {
 792                 mutex_unlock(&mgr->setup_mutex);
 793                 return err;
 794         }
 795         */
 796         /* allocate buffer */
 797         err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
 798
 799         /*
 800         if (err > 0) {
 801                 err = pcxhr_update_r_buffer(stream);
 802         }
 803         */
 804         mutex_unlock(&mgr->setup_mutex);
 805
 806         return err;
 807 }
 808
 809 static int pcxhr_hw_free(struct snd_pcm_substream *subs)
 810 {
 811         snd_pcm_lib_free_pages(subs);
 812         return 0;
 813 }
 814
 815
 816 /*
 817  *  CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
 818  */
 819 static struct snd_pcm_hardware pcxhr_caps =
 820 {
 821         .info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 822                               SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
 823                               0 /*SNDRV_PCM_INFO_PAUSE*/),
 824         .formats          = ( SNDRV_PCM_FMTBIT_U8 |
 825                               SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
 826                               SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
 827                               SNDRV_PCM_FMTBIT_FLOAT_LE ),
 828         .rates            = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_192000,
 829         .rate_min         = 8000,
 830         .rate_max         = 192000,
 831         .channels_min     = 1,
 832         .channels_max     = 2,
 833         .buffer_bytes_max = (32*1024),
 834         /* 1 byte == 1 frame U8 mono (PCXHR_GRANULARITY is frames!) */
 835         .period_bytes_min = (2*PCXHR_GRANULARITY),
 836         .period_bytes_max = (16*1024),
 837         .periods_min      = 2,
 838         .periods_max      = (32*1024/PCXHR_GRANULARITY),
 839 };
 840
 841
 842 static int pcxhr_open(struct snd_pcm_substream *subs)
 843 {
 844         struct snd_pcxhr       *chip = snd_pcm_substream_chip(subs);
 845         struct pcxhr_mgr       *mgr = chip->mgr;
 846         struct snd_pcm_runtime *runtime = subs->runtime;
 847         struct pcxhr_stream    *stream;
 848         int                 is_capture;
 849
 850         mutex_lock(&mgr->setup_mutex);
 851
 852         /* copy the struct snd_pcm_hardware struct */
 853         runtime->hw = pcxhr_caps;
 854
 855         if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK ) {
 856                 snd_printdd("pcxhr_open playback chip%d subs%d\n",
 857                             chip->chip_idx, subs->number);
 858                 is_capture = 0;
 859                 stream = &chip->playback_stream[subs->number];
 860         } else {
 861                 snd_printdd("pcxhr_open capture chip%d subs%d\n",
 862                             chip->chip_idx, subs->number);
 863                 is_capture = 1;
 864                 if (mgr->mono_capture)
 865                         runtime->hw.channels_max = 1;
 866                 else
 867                         runtime->hw.channels_min = 2;
 868                 stream = &chip->capture_stream[subs->number];
 869         }
 870         if (stream->status != PCXHR_STREAM_STATUS_FREE){
 871                 /* streams in use */
 872                 snd_printk(KERN_ERR "pcxhr_open chip%d subs%d in use\n",
 873                            chip->chip_idx, subs->number);
 874                 mutex_unlock(&mgr->setup_mutex);
 875                 return -EBUSY;
 876         }
 877
 878         /* if a sample rate is already used or fixed by external clock,
 879          * the stream cannot change
 880          */
 881         if (mgr->sample_rate)
 882                 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
 883         else {
 884                 if (mgr->use_clock_type != PCXHR_CLOCK_TYPE_INTERNAL) {
 885                         int external_rate;
 886                         if (pcxhr_get_external_clock(mgr, mgr->use_clock_type,
 887                                                      &external_rate) ||
 888                             external_rate == 0) {
 889                                 /* cannot detect the external clock rate */
 890                                 mutex_unlock(&mgr->setup_mutex);
 891                                 return -EBUSY;
 892                         }
 893                         runtime->hw.rate_min = runtime->hw.rate_max = external_rate;
 894                 }
 895         }
 896
 897         stream->status      = PCXHR_STREAM_STATUS_OPEN;
 898         stream->substream   = subs;
 899         stream->channels    = 0; /* not configured yet */
 900
 901         runtime->private_data = stream;
 902
 903         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 4);
 904         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);
 905
 906         mgr->ref_count_rate++;
 907
 908         mutex_unlock(&mgr->setup_mutex);
 909         return 0;
 910 }
 911
 912
 913 static int pcxhr_close(struct snd_pcm_substream *subs)
 914 {
 915         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 916         struct pcxhr_mgr *mgr = chip->mgr;
 917         struct pcxhr_stream *stream = subs->runtime->private_data;
 918
 919         mutex_lock(&mgr->setup_mutex);
 920
 921         snd_printdd("pcxhr_close chip%d subs%d\n", chip->chip_idx, subs->number);
 922
 923         /* sample rate released */
 924         if (--mgr->ref_count_rate == 0) {
 925                 mgr->sample_rate = 0;           /* the sample rate is no more locked */
 926                 pcxhr_hardware_timer(mgr, 0);   /* stop the DSP-timer */
 927         }
 928
 929         stream->status    = PCXHR_STREAM_STATUS_FREE;
 930         stream->substream = NULL;
 931
 932         mutex_unlock(&mgr->setup_mutex);
 933
 934         return 0;
 935 }
 936
 937
 938 static snd_pcm_uframes_t pcxhr_stream_pointer(struct snd_pcm_substream *subs)
 939 {
 940         unsigned long flags;
 941         u_int32_t timer_period_frag;
 942         int timer_buf_periods;
 943         struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
 944         struct snd_pcm_runtime *runtime = subs->runtime;
 945         struct pcxhr_stream *stream  = runtime->private_data;
 946
 947         spin_lock_irqsave(&chip->mgr->lock, flags);
 948
 949         /* get the period fragment and the nb of periods in the buffer */
 950         timer_period_frag = stream->timer_period_frag;
 951         timer_buf_periods = stream->timer_buf_periods;
 952
 953         spin_unlock_irqrestore(&chip->mgr->lock, flags);
 954
 955         return (snd_pcm_uframes_t)((timer_buf_periods * runtime->period_size) +
 956                                    timer_period_frag);
 957 }
 958
 959
 960 static struct snd_pcm_ops pcxhr_ops = {
 961         .open      = pcxhr_open,
 962         .close     = pcxhr_close,
 963         .ioctl     = snd_pcm_lib_ioctl,
 964         .prepare   = pcxhr_prepare,
 965         .hw_params = pcxhr_hw_params,
 966         .hw_free   = pcxhr_hw_free,
 967         .trigger   = pcxhr_trigger,
 968         .pointer   = pcxhr_stream_pointer,
 969 };
 970
 971 /*
 972  */
 973 int pcxhr_create_pcm(struct snd_pcxhr *chip)
 974 {
 975         int err;
 976         struct snd_pcm *pcm;
 977         char name[32];
 978
 979         sprintf(name, "pcxhr %d", chip->chip_idx);
 980         if ((err = snd_pcm_new(chip->card, name, 0,
 981                                chip->nb_streams_play,
 982                                chip->nb_streams_capt, &pcm)) < 0) {
 983                 snd_printk(KERN_ERR "cannot create pcm %s\n", name);
 984                 return err;
 985         }
 986         pcm->private_data = chip;
 987
 988         if (chip->nb_streams_play)
 989                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcxhr_ops);
 990         if (chip->nb_streams_capt)
 991                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcxhr_ops);
 992
 993         pcm->info_flags = 0;
 994         strcpy(pcm->name, name);
 995
 996         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 997                                               snd_dma_pci_data(chip->mgr->pci),
 998                                               32*1024, 32*1024);
 999         chip->pcm = pcm;
1000         return 0;
1001 }
1002
1003 static int pcxhr_chip_free(struct snd_pcxhr *chip)
1004 {
1005         kfree(chip);
1006         return 0;
1007 }
1008
1009 static int pcxhr_chip_dev_free(struct snd_device *device)
1010 {
1011         struct snd_pcxhr *chip = device->device_data;
1012         return pcxhr_chip_free(chip);
1013 }
1014
1015
1016 /*
1017  */
1018 static int __devinit pcxhr_create(struct pcxhr_mgr *mgr, struct snd_card *card, int idx)
1019 {
1020         int err;
1021         struct snd_pcxhr *chip;
1022         static struct snd_device_ops ops = {
1023                 .dev_free = pcxhr_chip_dev_free,
1024         };
1025
1026         mgr->chip[idx] = chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1027         if (! chip) {
1028                 snd_printk(KERN_ERR "cannot allocate chip\n");
1029                 return -ENOMEM;
1030         }
1031
1032         chip->card = card;
1033         chip->chip_idx = idx;
1034         chip->mgr = mgr;
1035
1036         if (idx < mgr->playback_chips)
1037                 /* stereo or mono streams */
1038                 chip->nb_streams_play = PCXHR_PLAYBACK_STREAMS;
1039
1040         if (idx < mgr->capture_chips) {
1041                 if (mgr->mono_capture)
1042                         chip->nb_streams_capt = 2;      /* 2 mono streams (left+right) */
1043                 else
1044                         chip->nb_streams_capt = 1;      /* or 1 stereo stream */
1045         }
1046
1047         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1048                 pcxhr_chip_free(chip);
1049                 return err;
1050         }
1051
1052         snd_card_set_dev(card, &mgr->pci->dev);
1053
1054         return 0;
1055 }
1056
1057 /* proc interface */
1058 static void pcxhr_proc_info(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1059 {
1060         struct snd_pcxhr *chip = entry->private_data;
1061         struct pcxhr_mgr *mgr = chip->mgr;
1062
1063         snd_iprintf(buffer, "\n%s\n", mgr->longname);
1064
1065         /* stats available when embedded DSP is running */
1066         if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1067                 struct pcxhr_rmh rmh;
1068                 short ver_maj = (mgr->dsp_version >> 16) & 0xff;
1069                 short ver_min = (mgr->dsp_version >> 8) & 0xff;
1070                 short ver_build = mgr->dsp_version & 0xff;
1071                 snd_iprintf(buffer, "module version %s\n", PCXHR_DRIVER_VERSION_STRING);
1072                 snd_iprintf(buffer, "dsp version %d.%d.%d\n", ver_maj, ver_min, ver_build);
1073                 if (mgr->board_has_analog)
1074                         snd_iprintf(buffer, "analog io available\n");
1075                 else
1076                         snd_iprintf(buffer, "digital only board\n");
1077
1078                 /* calc cpu load of the dsp */
1079                 pcxhr_init_rmh(&rmh, CMD_GET_DSP_RESOURCES);
1080                 if( ! pcxhr_send_msg(mgr, &rmh) ) {
1081                         int cur = rmh.stat[0];
1082                         int ref = rmh.stat[1];
1083                         if (ref > 0) {
1084                                 if (mgr->sample_rate_real != 0 &&
1085                                     mgr->sample_rate_real != 48000) {
1086                                         ref = (ref * 48000) / mgr->sample_rate_real;
1087                                         if (mgr->sample_rate_real >= PCXHR_IRQ_TIMER_FREQ)
1088                                                 ref *= 2;
1089                                 }
1090                                 cur = 100 - (100 * cur) / ref;
1091                                 snd_iprintf(buffer, "cpu load    %d%%\n", cur);
1092                                 snd_iprintf(buffer, "buffer pool %d/%d kWords\n",
1093                                             rmh.stat[2], rmh.stat[3]);
1094                         }
1095                 }
1096                 snd_iprintf(buffer, "dma granularity : %d\n", PCXHR_GRANULARITY);
1097                 snd_iprintf(buffer, "dsp time errors : %d\n", mgr->dsp_time_err);
1098                 snd_iprintf(buffer, "dsp async pipe xrun errors : %d\n",
1099                             mgr->async_err_pipe_xrun);
1100                 snd_iprintf(buffer, "dsp async stream xrun errors : %d\n",
1101                             mgr->async_err_stream_xrun);
1102                 snd_iprintf(buffer, "dsp async last other error : %x\n",
1103                             mgr->async_err_other_last);
1104                 /* debug zone dsp */
1105                 rmh.cmd[0] = 0x4200 + PCXHR_SIZE_MAX_STATUS;
1106                 rmh.cmd_len = 1;
1107                 rmh.stat_len = PCXHR_SIZE_MAX_STATUS;
1108                 rmh.dsp_stat = 0;
1109                 rmh.cmd_idx = CMD_LAST_INDEX;
1110                 if( ! pcxhr_send_msg(mgr, &rmh) ) {
1111                         int i;
1112                         for (i = 0; i < rmh.stat_len; i++)
1113                                 snd_iprintf(buffer, "debug[%02d] = %06x\n", i,  rmh.stat[i]);
1114                 }
1115         } else
1116                 snd_iprintf(buffer, "no firmware loaded\n");
1117         snd_iprintf(buffer, "\n");
1118 }
1119 static void pcxhr_proc_sync(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1120 {
1121         struct snd_pcxhr *chip = entry->private_data;
1122         struct pcxhr_mgr *mgr = chip->mgr;
1123         static char *texts[7] = {
1124                 "Internal", "Word", "AES Sync", "AES 1", "AES 2", "AES 3", "AES 4"
1125         };
1126
1127         snd_iprintf(buffer, "\n%s\n", mgr->longname);
1128         snd_iprintf(buffer, "Current Sample Clock\t: %s\n", texts[mgr->cur_clock_type]);
1129         snd_iprintf(buffer, "Current Sample Rate\t= %d\n", mgr->sample_rate_real);
1130
1131         /* commands available when embedded DSP is running */
1132         if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1133                 int i, err, sample_rate;
1134                 for (i = PCXHR_CLOCK_TYPE_WORD_CLOCK; i< (3 + mgr->capture_chips); i++) {
1135                         err = pcxhr_get_external_clock(mgr, i, &sample_rate);
1136                         if (err)
1137                                 break;
1138                         snd_iprintf(buffer, "%s Clock\t\t= %d\n", texts[i], sample_rate);
1139                 }
1140         } else
1141                 snd_iprintf(buffer, "no firmware loaded\n");
1142         snd_iprintf(buffer, "\n");
1143 }
1144
1145 static void __devinit pcxhr_proc_init(struct snd_pcxhr *chip)
1146 {
1147         struct snd_info_entry *entry;
1148
1149         if (! snd_card_proc_new(chip->card, "info", &entry))
1150                 snd_info_set_text_ops(entry, chip, pcxhr_proc_info);
1151         if (! snd_card_proc_new(chip->card, "sync", &entry))
1152                 snd_info_set_text_ops(entry, chip, pcxhr_proc_sync);
1153 }
1154 /* end of proc interface */
1155
1156 /*
1157  * release all the cards assigned to a manager instance
1158  */
1159 static int pcxhr_free(struct pcxhr_mgr *mgr)
1160 {
1161         unsigned int i;
1162
1163         for (i = 0; i < mgr->num_cards; i++) {
1164                 if (mgr->chip[i])
1165                         snd_card_free(mgr->chip[i]->card);
1166         }
1167
1168         /* reset board if some firmware was loaded */
1169         if(mgr->dsp_loaded) {
1170                 pcxhr_reset_board(mgr);
1171                 snd_printdd("reset pcxhr !\n");
1172         }
1173
1174         /* release irq  */
1175         if (mgr->irq >= 0)
1176                 free_irq(mgr->irq, mgr);
1177
1178         pci_release_regions(mgr->pci);
1179
1180         /* free hostport purgebuffer */
1181         if (mgr->hostport.area) {
1182                 snd_dma_free_pages(&mgr->hostport);
1183                 mgr->hostport.area = NULL;
1184         }
1185
1186         kfree(mgr->prmh);
1187
1188         pci_disable_device(mgr->pci);
1189         kfree(mgr);
1190         return 0;
1191 }
1192
1193 /*
1194  *    probe function - creates the card manager
1195  */
1196 static int __devinit pcxhr_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1197 {
1198         static int dev;
1199         struct pcxhr_mgr *mgr;
1200         unsigned int i;
1201         int err;
1202         size_t size;
1203         char *card_name;
1204
1205         if (dev >= SNDRV_CARDS)
1206                 return -ENODEV;
1207         if (! enable[dev]) {
1208                 dev++;
1209                 return -ENOENT;
1210         }
1211
1212         /* enable PCI device */
1213         if ((err = pci_enable_device(pci)) < 0)
1214                 return err;
1215         pci_set_master(pci);
1216
1217         /* check if we can restrict PCI DMA transfers to 32 bits */
1218         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1219                 snd_printk(KERN_ERR "architecture does not support 32bit PCI busmaster DMA\n");
1220                 pci_disable_device(pci);
1221                 return -ENXIO;
1222         }
1223
1224         /* alloc card manager */
1225         mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1226         if (! mgr) {
1227                 pci_disable_device(pci);
1228                 return -ENOMEM;
1229         }
1230
1231         snd_assert(pci_id->driver_data < PCI_ID_LAST, return -ENODEV);
1232         card_name = pcxhr_board_params[pci_id->driver_data].board_name;
1233         mgr->playback_chips = pcxhr_board_params[pci_id->driver_data].playback_chips;
1234         mgr->capture_chips  = pcxhr_board_params[pci_id->driver_data].capture_chips;
1235         mgr->firmware_num  = pcxhr_board_params[pci_id->driver_data].firmware_num;
1236         mgr->mono_capture = mono[dev];
1237
1238         /* resource assignment */
1239         if ((err = pci_request_regions(pci, card_name)) < 0) {
1240                 kfree(mgr);
1241                 pci_disable_device(pci);
1242                 return err;
1243         }
1244         for (i = 0; i < 3; i++)
1245                 mgr->port[i] = pci_resource_start(pci, i);
1246
1247         mgr->pci = pci;
1248         mgr->irq = -1;
1249
1250         if (request_irq(pci->irq, pcxhr_interrupt, IRQF_SHARED,
1251                         card_name, mgr)) {
1252                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1253                 pcxhr_free(mgr);
1254                 return -EBUSY;
1255         }
1256         mgr->irq = pci->irq;
1257
1258         sprintf(mgr->shortname, "Digigram %s", card_name);
1259         sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, 0x%lx irq %i", mgr->shortname,
1260                 mgr->port[0], mgr->port[1], mgr->port[2], mgr->irq);
1261
1262         /* ISR spinlock  */
1263         spin_lock_init(&mgr->lock);
1264         spin_lock_init(&mgr->msg_lock);
1265
1266         /* init setup mutex*/
1267         mutex_init(&mgr->setup_mutex);
1268
1269         /* init taslket */
1270         tasklet_init(&mgr->msg_taskq, pcxhr_msg_tasklet, (unsigned long) mgr);
1271         tasklet_init(&mgr->trigger_taskq, pcxhr_trigger_tasklet, (unsigned long) mgr);
1272         mgr->prmh = kmalloc(sizeof(*mgr->prmh) +
1273                             sizeof(u32) * (PCXHR_SIZE_MAX_LONG_STATUS - PCXHR_SIZE_MAX_STATUS),
1274                             GFP_KERNEL);
1275         if (! mgr->prmh) {
1276                 pcxhr_free(mgr);
1277                 return -ENOMEM;
1278         }
1279
1280         for (i=0; i < PCXHR_MAX_CARDS; i++) {
1281                 struct snd_card *card;
1282                 char tmpid[16];
1283                 int idx;
1284
1285                 if (i >= max(mgr->playback_chips, mgr->capture_chips))
1286                         break;
1287                 mgr->num_cards++;
1288
1289                 if (index[dev] < 0)
1290                         idx = index[dev];
1291                 else
1292                         idx = index[dev] + i;
1293
1294                 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : card_name, i);
1295                 card = snd_card_new(idx, tmpid, THIS_MODULE, 0);
1296
1297                 if (! card) {
1298                         snd_printk(KERN_ERR "cannot allocate the card %d\n", i);
1299                         pcxhr_free(mgr);
1300                         return -ENOMEM;
1301                 }
1302
1303                 strcpy(card->driver, DRIVER_NAME);
1304                 sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1305                 sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1306
1307                 if ((err = pcxhr_create(mgr, card, i)) < 0) {
1308                         pcxhr_free(mgr);
1309                         return err;
1310                 }
1311
1312                 if (i == 0)
1313                         /* init proc interface only for chip0 */
1314                         pcxhr_proc_init(mgr->chip[i]);
1315
1316                 if ((err = snd_card_register(card)) < 0) {
1317                         pcxhr_free(mgr);
1318                         return err;
1319                 }
1320         }
1321
1322         /* create hostport purgebuffer */
1323         size = PAGE_ALIGN(sizeof(struct pcxhr_hostport));
1324         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1325                                 size, &mgr->hostport) < 0) {
1326                 pcxhr_free(mgr);
1327                 return -ENOMEM;
1328         }
1329         /* init purgebuffer */
1330         memset(mgr->hostport.area, 0, size);
1331
1332         /* create a DSP loader */
1333         err = pcxhr_setup_firmware(mgr);
1334         if (err < 0) {
1335                 pcxhr_free(mgr);
1336                 return err;
1337         }
1338
1339         pci_set_drvdata(pci, mgr);
1340         dev++;
1341         return 0;
1342 }
1343
1344 static void __devexit pcxhr_remove(struct pci_dev *pci)
1345 {
1346         pcxhr_free(pci_get_drvdata(pci));
1347         pci_set_drvdata(pci, NULL);
1348 }
1349
1350 static struct pci_driver driver = {
1351         .name = "Digigram pcxhr",
1352         .id_table = pcxhr_ids,
1353         .probe = pcxhr_probe,
1354         .remove = __devexit_p(pcxhr_remove),
1355 };
1356
1357 static int __init pcxhr_module_init(void)
1358 {
1359         return pci_register_driver(&driver);
1360 }
1361
1362 static void __exit pcxhr_module_exit(void)
1363 {
1364         pci_unregister_driver(&driver);
1365 }
1366
1367 module_init(pcxhr_module_init)
1368 module_exit(pcxhr_module_exit)