sound/pci/mixart/mixart.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Driver for Digigram miXart soundcards
   4  *
   5  * main file with alsa callbacks
   6  *
   7  * Copyright (c) 2003 by Digigram <alsa@digigram.com>
   8  */
   9
  10
  11 #include <linux/init.h>
  12 #include <linux/interrupt.h>
  13 #include <linux/pci.h>
  14 #include <linux/dma-mapping.h>
  15 #include <linux/module.h>
  16 #include <linux/mutex.h>
  17 #include <linux/slab.h>
  18
  19 #include <sound/core.h>
  20 #include <sound/initval.h>
  21 #include <sound/info.h>
  22 #include <sound/control.h>
  23 #include <sound/pcm.h>
  24 #include <sound/pcm_params.h>
  25 #include "mixart.h"
  26 #include "mixart_hwdep.h"
  27 #include "mixart_core.h"
  28 #include "mixart_mixer.h"
  29
  30 #define CARD_NAME "miXart"
  31
  32 MODULE_AUTHOR("Digigram <alsa@digigram.com>");
  33 MODULE_DESCRIPTION("Digigram " CARD_NAME);
  34 MODULE_LICENSE("GPL");
  35 MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
  36
  37 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;             /* Index 0-MAX */
  38 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;              /* ID for this card */
  39 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  40
  41 module_param_array(index, int, NULL, 0444);
  42 MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
  43 module_param_array(id, charp, NULL, 0444);
  44 MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
  45 module_param_array(enable, bool, NULL, 0444);
  46 MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
  47
  48 /*
  49  */
  50
  51 static const struct pci_device_id snd_mixart_ids[] = {
  52         { PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */
  53         { 0, }
  54 };
  55
  56 MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
  57
  58
  59 static int mixart_set_pipe_state(struct mixart_mgr *mgr,
  60                                  struct mixart_pipe *pipe, int start)
  61 {
  62         struct mixart_group_state_req group_state;
  63         struct mixart_group_state_resp group_state_resp;
  64         struct mixart_msg request;
  65         int err;
  66         u32 system_msg_uid;
  67
  68         switch(pipe->status) {
  69         case PIPE_RUNNING:
  70         case PIPE_CLOCK_SET:
  71                 if(start) return 0; /* already started */
  72                 break;
  73         case PIPE_STOPPED:
  74                 if(!start) return 0; /* already stopped */
  75                 break;
  76         default:
  77                 dev_err(&mgr->pci->dev,
  78                         "error mixart_set_pipe_state called with wrong pipe->status!\n");
  79                 return -EINVAL;      /* function called with wrong pipe status */
  80         }
  81
  82         system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
  83
  84         /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
  85
  86         request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
  87         request.uid = (struct mixart_uid){0,0};
  88         request.data = &system_msg_uid;
  89         request.size = sizeof(system_msg_uid);
  90
  91         err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
  92         if(err) {
  93                 dev_err(&mgr->pci->dev,
  94                         "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
  95                 return err;
  96         }
  97
  98         /* start or stop the pipe (1 pipe) */
  99
 100         memset(&group_state, 0, sizeof(group_state));
 101         group_state.pipe_count = 1;
 102         group_state.pipe_uid[0] = pipe->group_uid;
 103
 104         if(start)
 105                 request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
 106         else
 107                 request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
 108
 109         request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
 110         request.data = &group_state;
 111         request.size = sizeof(group_state);
 112
 113         err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
 114         if (err < 0 || group_state_resp.txx_status != 0) {
 115                 dev_err(&mgr->pci->dev,
 116                         "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n",
 117                         err, group_state_resp.txx_status);
 118                 return -EINVAL;
 119         }
 120
 121         if(start) {
 122                 u32 stat = 0;
 123
 124                 group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
 125
 126                 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
 127                 if (err < 0 || group_state_resp.txx_status != 0) {
 128                         dev_err(&mgr->pci->dev,
 129                                 "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n",
 130                                 err, group_state_resp.txx_status);
 131                         return -EINVAL;
 132                 }
 133
 134                 /* in case of start send a synchro top */
 135
 136                 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
 137                 request.uid = (struct mixart_uid){0,0};
 138                 request.data = NULL;
 139                 request.size = 0;
 140
 141                 err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
 142                 if (err < 0 || stat != 0) {
 143                         dev_err(&mgr->pci->dev,
 144                                 "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n",
 145                                 err, stat);
 146                         return -EINVAL;
 147                 }
 148
 149                 pipe->status = PIPE_RUNNING;
 150         }
 151         else /* !start */
 152                 pipe->status = PIPE_STOPPED;
 153
 154         return 0;
 155 }
 156
 157
 158 static int mixart_set_clock(struct mixart_mgr *mgr,
 159                             struct mixart_pipe *pipe, unsigned int rate)
 160 {
 161         struct mixart_msg request;
 162         struct mixart_clock_properties clock_properties;
 163         struct mixart_clock_properties_resp clock_prop_resp;
 164         int err;
 165
 166         switch(pipe->status) {
 167         case PIPE_CLOCK_SET:
 168                 break;
 169         case PIPE_RUNNING:
 170                 if(rate != 0)
 171                         break;
 172                 fallthrough;
 173         default:
 174                 if(rate == 0)
 175                         return 0; /* nothing to do */
 176                 else {
 177                         dev_err(&mgr->pci->dev,
 178                                 "error mixart_set_clock(%d) called with wrong pipe->status !\n",
 179                                 rate);
 180                         return -EINVAL;
 181                 }
 182         }
 183
 184         memset(&clock_properties, 0, sizeof(clock_properties));
 185         clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
 186         clock_properties.clock_mode = CM_STANDALONE;
 187         clock_properties.frequency = rate;
 188         clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
 189         clock_properties.uid_caller[0] = pipe->group_uid;
 190
 191         dev_dbg(&mgr->pci->dev, "mixart_set_clock to %d kHz\n", rate);
 192
 193         request.message_id = MSG_CLOCK_SET_PROPERTIES;
 194         request.uid = mgr->uid_console_manager;
 195         request.data = &clock_properties;
 196         request.size = sizeof(clock_properties);
 197
 198         err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
 199         if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
 200                 dev_err(&mgr->pci->dev,
 201                         "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n",
 202                         err, clock_prop_resp.status, clock_prop_resp.clock_mode);
 203                 return -EINVAL;
 204         }
 205
 206         if(rate)  pipe->status = PIPE_CLOCK_SET;
 207         else      pipe->status = PIPE_RUNNING;
 208
 209         return 0;
 210 }
 211
 212
 213 /*
 214  *  Allocate or reference output pipe for analog IOs (pcmp0/1)
 215  */
 216 struct mixart_pipe *
 217 snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
 218                         int monitoring)
 219 {
 220         int stream_count;
 221         struct mixart_pipe *pipe;
 222         struct mixart_msg request;
 223
 224         if(capture) {
 225                 if (pcm_number == MIXART_PCM_ANALOG) {
 226                         pipe = &(chip->pipe_in_ana);  /* analog inputs */
 227                 } else {
 228                         pipe = &(chip->pipe_in_dig); /* digital inputs */
 229                 }
 230                 request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
 231                 stream_count = MIXART_CAPTURE_STREAMS;
 232         } else {
 233                 if (pcm_number == MIXART_PCM_ANALOG) {
 234                         pipe = &(chip->pipe_out_ana);  /* analog outputs */
 235                 } else {
 236                         pipe = &(chip->pipe_out_dig);  /* digital outputs */
 237                 }
 238                 request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
 239                 stream_count = MIXART_PLAYBACK_STREAMS;
 240         }
 241
 242         /* a new stream is opened and there are already all streams in use */
 243         if( (monitoring == 0) && (pipe->references >= stream_count) ) {
 244                 return NULL;
 245         }
 246
 247         /* pipe is not yet defined */
 248         if( pipe->status == PIPE_UNDEFINED ) {
 249                 int err, i;
 250                 struct {
 251                         struct mixart_streaming_group_req sgroup_req;
 252                         struct mixart_streaming_group sgroup_resp;
 253                 } *buf;
 254
 255                 dev_dbg(chip->card->dev,
 256                         "add_ref_pipe audio chip(%d) pcm(%d)\n",
 257                         chip->chip_idx, pcm_number);
 258
 259                 buf = kmalloc(sizeof(*buf), GFP_KERNEL);
 260                 if (!buf)
 261                         return NULL;
 262
 263                 request.uid = (struct mixart_uid){0,0};      /* should be StreamManagerUID, but zero is OK if there is only one ! */
 264                 request.data = &buf->sgroup_req;
 265                 request.size = sizeof(buf->sgroup_req);
 266
 267                 memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
 268
 269                 buf->sgroup_req.stream_count = stream_count;
 270                 buf->sgroup_req.channel_count = 2;
 271                 buf->sgroup_req.latency = 256;
 272                 buf->sgroup_req.connector = pipe->uid_left_connector;  /* the left connector */
 273
 274                 for (i=0; i<stream_count; i++) {
 275                         int j;
 276                         struct mixart_flowinfo *flowinfo;
 277                         struct mixart_bufferinfo *bufferinfo;
 278
 279                         /* we don't yet know the format, so config 16 bit pcm audio for instance */
 280                         buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
 281                         buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
 282                         buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
 283
 284                         /* find the right bufferinfo_array */
 285                         j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
 286                         if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
 287
 288                         buf->sgroup_req.flow_entry[i] = j;
 289
 290                         flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
 291                         flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
 292                         flowinfo[j].bufferinfo_count = 1;               /* 1 will set the miXart to ring-buffer mode ! */
 293
 294                         bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
 295                         bufferinfo[j].buffer_address = 0;               /* buffer is not yet allocated */
 296                         bufferinfo[j].available_length = 0;             /* buffer is not yet allocated */
 297
 298                         /* construct the identifier of the stream buffer received in the interrupts ! */
 299                         bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
 300                         if(capture) {
 301                                 bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
 302                         }
 303                 }
 304
 305                 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
 306                 if((err < 0) || (buf->sgroup_resp.status != 0)) {
 307                         dev_err(chip->card->dev,
 308                                 "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n",
 309                                 err, buf->sgroup_resp.status);
 310                         kfree(buf);
 311                         return NULL;
 312                 }
 313
 314                 pipe->group_uid = buf->sgroup_resp.group;     /* id of the pipe, as returned by embedded */
 315                 pipe->stream_count = buf->sgroup_resp.stream_count;
 316                 /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
 317
 318                 pipe->status = PIPE_STOPPED;
 319                 kfree(buf);
 320         }
 321
 322         if(monitoring)  pipe->monitoring = 1;
 323         else            pipe->references++;
 324
 325         return pipe;
 326 }
 327
 328
 329 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
 330                              struct mixart_pipe *pipe, int monitoring)
 331 {
 332         int err = 0;
 333
 334         if(pipe->status == PIPE_UNDEFINED)
 335                 return 0;
 336
 337         if(monitoring)
 338                 pipe->monitoring = 0;
 339         else
 340                 pipe->references--;
 341
 342         if((pipe->references <= 0) && (pipe->monitoring == 0)) {
 343
 344                 struct mixart_msg request;
 345                 struct mixart_delete_group_resp delete_resp;
 346
 347                 /* release the clock */
 348                 err = mixart_set_clock( mgr, pipe, 0);
 349                 if( err < 0 ) {
 350                         dev_err(&mgr->pci->dev,
 351                                 "mixart_set_clock(0) return error!\n");
 352                 }
 353
 354                 /* stop the pipe */
 355                 err = mixart_set_pipe_state(mgr, pipe, 0);
 356                 if( err < 0 ) {
 357                         dev_err(&mgr->pci->dev, "error stopping pipe!\n");
 358                 }
 359
 360                 request.message_id = MSG_STREAM_DELETE_GROUP;
 361                 request.uid = (struct mixart_uid){0,0};
 362                 request.data = &pipe->group_uid;            /* the streaming group ! */
 363                 request.size = sizeof(pipe->group_uid);
 364
 365                 /* delete the pipe */
 366                 err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
 367                 if ((err < 0) || (delete_resp.status != 0)) {
 368                         dev_err(&mgr->pci->dev,
 369                                 "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n",
 370                                 err, delete_resp.status);
 371                 }
 372
 373                 pipe->group_uid = (struct mixart_uid){0,0};
 374                 pipe->stream_count = 0;
 375                 pipe->status = PIPE_UNDEFINED;
 376         }
 377
 378         return err;
 379 }
 380
 381 static int mixart_set_stream_state(struct mixart_stream *stream, int start)
 382 {
 383         struct snd_mixart *chip;
 384         struct mixart_stream_state_req stream_state_req;
 385         struct mixart_msg request;
 386
 387         if(!stream->substream)
 388                 return -EINVAL;
 389
 390         memset(&stream_state_req, 0, sizeof(stream_state_req));
 391         stream_state_req.stream_count = 1;
 392         stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
 393         stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
 394
 395         if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 396                 request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
 397         else
 398                 request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
 399
 400         request.uid = (struct mixart_uid){0,0};
 401         request.data = &stream_state_req;
 402         request.size = sizeof(stream_state_req);
 403
 404         stream->abs_period_elapsed = 0;            /* reset stream pos      */
 405         stream->buf_periods = 0;
 406         stream->buf_period_frag = 0;
 407
 408         chip = snd_pcm_substream_chip(stream->substream);
 409
 410         return snd_mixart_send_msg_nonblock(chip->mgr, &request);
 411 }
 412
 413 /*
 414  *  Trigger callback
 415  */
 416
 417 static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
 418 {
 419         struct mixart_stream *stream = subs->runtime->private_data;
 420
 421         switch (cmd) {
 422         case SNDRV_PCM_TRIGGER_START:
 423
 424                 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_START\n");
 425
 426                 /* START_STREAM */
 427                 if( mixart_set_stream_state(stream, 1) )
 428                         return -EINVAL;
 429
 430                 stream->status = MIXART_STREAM_STATUS_RUNNING;
 431
 432                 break;
 433         case SNDRV_PCM_TRIGGER_STOP:
 434
 435                 /* STOP_STREAM */
 436                 if( mixart_set_stream_state(stream, 0) )
 437                         return -EINVAL;
 438
 439                 stream->status = MIXART_STREAM_STATUS_OPEN;
 440
 441                 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_STOP\n");
 442
 443                 break;
 444
 445         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 446                 /* TODO */
 447                 stream->status = MIXART_STREAM_STATUS_PAUSE;
 448                 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_PUSH\n");
 449                 break;
 450         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 451                 /* TODO */
 452                 stream->status = MIXART_STREAM_STATUS_RUNNING;
 453                 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_RELEASE\n");
 454                 break;
 455         default:
 456                 return -EINVAL;
 457         }
 458         return 0;
 459 }
 460
 461 static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
 462 {
 463         unsigned long timeout = jiffies + HZ;
 464         while (atomic_read(&mgr->msg_processed) > 0) {
 465                 if (time_after(jiffies, timeout)) {
 466                         dev_err(&mgr->pci->dev,
 467                                 "mixart: cannot process nonblock events!\n");
 468                         return -EBUSY;
 469                 }
 470                 schedule_timeout_uninterruptible(1);
 471         }
 472         return 0;
 473 }
 474
 475 /*
 476  *  prepare callback for all pcms
 477  */
 478 static int snd_mixart_prepare(struct snd_pcm_substream *subs)
 479 {
 480         struct snd_mixart *chip = snd_pcm_substream_chip(subs);
 481         struct mixart_stream *stream = subs->runtime->private_data;
 482
 483         /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
 484
 485         dev_dbg(chip->card->dev, "snd_mixart_prepare\n");
 486
 487         mixart_sync_nonblock_events(chip->mgr);
 488
 489         /* only the first stream can choose the sample rate */
 490         /* the further opened streams will be limited to its frequency (see open) */
 491         if(chip->mgr->ref_count_rate == 1)
 492                 chip->mgr->sample_rate = subs->runtime->rate;
 493
 494         /* set the clock only once (first stream) on the same pipe */
 495         if(stream->pipe->references == 1) {
 496                 if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
 497                         return -EINVAL;
 498         }
 499
 500         return 0;
 501 }
 502
 503
 504 static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
 505 {
 506         int err;
 507         struct snd_mixart *chip;
 508         struct mixart_msg request;
 509         struct mixart_stream_param_desc stream_param;
 510         struct mixart_return_uid resp;
 511
 512         chip = snd_pcm_substream_chip(stream->substream);
 513
 514         memset(&stream_param, 0, sizeof(stream_param));
 515
 516         stream_param.coding_type = CT_LINEAR;
 517         stream_param.number_of_channel = stream->channels;
 518
 519         stream_param.sampling_freq = chip->mgr->sample_rate;
 520         if(stream_param.sampling_freq == 0)
 521                 stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
 522
 523         switch(format){
 524         case SNDRV_PCM_FORMAT_U8:
 525                 stream_param.sample_type = ST_INTEGER_8;
 526                 stream_param.sample_size = 8;
 527                 break;
 528         case SNDRV_PCM_FORMAT_S16_LE:
 529                 stream_param.sample_type = ST_INTEGER_16LE;
 530                 stream_param.sample_size = 16;
 531                 break;
 532         case SNDRV_PCM_FORMAT_S16_BE:
 533                 stream_param.sample_type = ST_INTEGER_16BE;
 534                 stream_param.sample_size = 16;
 535                 break;
 536         case SNDRV_PCM_FORMAT_S24_3LE:
 537                 stream_param.sample_type = ST_INTEGER_24LE;
 538                 stream_param.sample_size = 24;
 539                 break;
 540         case SNDRV_PCM_FORMAT_S24_3BE:
 541                 stream_param.sample_type = ST_INTEGER_24BE;
 542                 stream_param.sample_size = 24;
 543                 break;
 544         case SNDRV_PCM_FORMAT_FLOAT_LE:
 545                 stream_param.sample_type = ST_FLOATING_POINT_32LE;
 546                 stream_param.sample_size = 32;
 547                 break;
 548         case  SNDRV_PCM_FORMAT_FLOAT_BE:
 549                 stream_param.sample_type = ST_FLOATING_POINT_32BE;
 550                 stream_param.sample_size = 32;
 551                 break;
 552         default:
 553                 dev_err(chip->card->dev,
 554                         "error mixart_set_format() : unknown format\n");
 555                 return -EINVAL;
 556         }
 557
 558         dev_dbg(chip->card->dev,
 559                 "set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
 560                    stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
 561
 562         /* TODO: what else to configure ? */
 563         /* stream_param.samples_per_frame = 2; */
 564         /* stream_param.bytes_per_frame = 4; */
 565         /* stream_param.bytes_per_sample = 2; */
 566
 567         stream_param.pipe_count = 1;      /* set to 1 */
 568         stream_param.stream_count = 1;    /* set to 1 */
 569         stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
 570         stream_param.stream_desc[0].stream_idx = stream->substream->number;
 571
 572         request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
 573         request.uid = (struct mixart_uid){0,0};
 574         request.data = &stream_param;
 575         request.size = sizeof(stream_param);
 576
 577         err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
 578         if((err < 0) || resp.error_code) {
 579                 dev_err(chip->card->dev,
 580                         "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n",
 581                         err, resp.error_code);
 582                 return -EINVAL;
 583         }
 584         return 0;
 585 }
 586
 587
 588 /*
 589  *  HW_PARAMS callback for all pcms
 590  */
 591 static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
 592                                 struct snd_pcm_hw_params *hw)
 593 {
 594         struct snd_mixart *chip = snd_pcm_substream_chip(subs);
 595         struct mixart_mgr *mgr = chip->mgr;
 596         struct mixart_stream *stream = subs->runtime->private_data;
 597         snd_pcm_format_t format;
 598         int err;
 599         int channels;
 600
 601         /* set up channels */
 602         channels = params_channels(hw);
 603
 604         /*  set up format for the stream */
 605         format = params_format(hw);
 606
 607         mutex_lock(&mgr->setup_mutex);
 608
 609         /* update the stream levels */
 610         if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
 611                 int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
 612                 if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
 613                         mixart_update_playback_stream_level(chip, is_aes, subs->number);
 614                 else
 615                         mixart_update_capture_stream_level( chip, is_aes);
 616         }
 617
 618         stream->channels = channels;
 619
 620         /* set the format to the board */
 621         err = mixart_set_format(stream, format);
 622         if(err < 0) {
 623                 mutex_unlock(&mgr->setup_mutex);
 624                 return err;
 625         }
 626
 627         if (subs->runtime->buffer_changed) {
 628                 struct mixart_bufferinfo *bufferinfo;
 629                 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
 630                 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
 631                         i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
 632                 }
 633
 634                 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
 635                 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
 636                 bufferinfo[i].available_length = subs->runtime->dma_bytes;
 637                 /* bufferinfo[i].buffer_id  is already defined */
 638
 639                 dev_dbg(chip->card->dev,
 640                         "snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n",
 641                         i, bufferinfo[i].buffer_address,
 642                                 bufferinfo[i].available_length,
 643                                 subs->number);
 644         }
 645         mutex_unlock(&mgr->setup_mutex);
 646
 647         return 0;
 648 }
 649
 650 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
 651 {
 652         struct snd_mixart *chip = snd_pcm_substream_chip(subs);
 653         mixart_sync_nonblock_events(chip->mgr);
 654         return 0;
 655 }
 656
 657
 658
 659 /*
 660  *  TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
 661  */
 662 static const struct snd_pcm_hardware snd_mixart_analog_caps =
 663 {
 664         .info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 665                               SNDRV_PCM_INFO_MMAP_VALID |
 666                               SNDRV_PCM_INFO_PAUSE),
 667         .formats          = ( SNDRV_PCM_FMTBIT_U8 |
 668                               SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
 669                               SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
 670                               SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
 671         .rates            = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 672         .rate_min         = 8000,
 673         .rate_max         = 48000,
 674         .channels_min     = 1,
 675         .channels_max     = 2,
 676         .buffer_bytes_max = (32*1024),
 677         .period_bytes_min = 256,                  /* 256 frames U8 mono*/
 678         .period_bytes_max = (16*1024),
 679         .periods_min      = 2,
 680         .periods_max      = (32*1024/256),
 681 };
 682
 683 static const struct snd_pcm_hardware snd_mixart_digital_caps =
 684 {
 685         .info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 686                               SNDRV_PCM_INFO_MMAP_VALID |
 687                               SNDRV_PCM_INFO_PAUSE),
 688         .formats          = ( SNDRV_PCM_FMTBIT_U8 |
 689                               SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
 690                               SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
 691                               SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
 692         .rates            = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
 693         .rate_min         = 32000,
 694         .rate_max         = 48000,
 695         .channels_min     = 1,
 696         .channels_max     = 2,
 697         .buffer_bytes_max = (32*1024),
 698         .period_bytes_min = 256,                  /* 256 frames U8 mono*/
 699         .period_bytes_max = (16*1024),
 700         .periods_min      = 2,
 701         .periods_max      = (32*1024/256),
 702 };
 703
 704
 705 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
 706 {
 707         struct snd_mixart            *chip = snd_pcm_substream_chip(subs);
 708         struct mixart_mgr        *mgr = chip->mgr;
 709         struct snd_pcm_runtime *runtime = subs->runtime;
 710         struct snd_pcm *pcm = subs->pcm;
 711         struct mixart_stream     *stream;
 712         struct mixart_pipe       *pipe;
 713         int err = 0;
 714         int pcm_number;
 715
 716         mutex_lock(&mgr->setup_mutex);
 717
 718         if ( pcm == chip->pcm ) {
 719                 pcm_number = MIXART_PCM_ANALOG;
 720                 runtime->hw = snd_mixart_analog_caps;
 721         } else {
 722                 snd_BUG_ON(pcm != chip->pcm_dig);
 723                 pcm_number = MIXART_PCM_DIGITAL;
 724                 runtime->hw = snd_mixart_digital_caps;
 725         }
 726         dev_dbg(chip->card->dev,
 727                 "snd_mixart_playback_open C%d/P%d/Sub%d\n",
 728                 chip->chip_idx, pcm_number, subs->number);
 729
 730         /* get stream info */
 731         stream = &(chip->playback_stream[pcm_number][subs->number]);
 732
 733         if (stream->status != MIXART_STREAM_STATUS_FREE){
 734                 /* streams in use */
 735                 dev_err(chip->card->dev,
 736                         "snd_mixart_playback_open C%d/P%d/Sub%d in use\n",
 737                         chip->chip_idx, pcm_number, subs->number);
 738                 err = -EBUSY;
 739                 goto _exit_open;
 740         }
 741
 742         /* get pipe pointer (out pipe) */
 743         pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
 744
 745         if (pipe == NULL) {
 746                 err = -EINVAL;
 747                 goto _exit_open;
 748         }
 749
 750         /* start the pipe if necessary */
 751         err = mixart_set_pipe_state(chip->mgr, pipe, 1);
 752         if( err < 0 ) {
 753                 dev_err(chip->card->dev, "error starting pipe!\n");
 754                 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
 755                 err = -EINVAL;
 756                 goto _exit_open;
 757         }
 758
 759         stream->pipe        = pipe;
 760         stream->pcm_number  = pcm_number;
 761         stream->status      = MIXART_STREAM_STATUS_OPEN;
 762         stream->substream   = subs;
 763         stream->channels    = 0; /* not configured yet */
 764
 765         runtime->private_data = stream;
 766
 767         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
 768         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
 769
 770         /* if a sample rate is already used, another stream cannot change */
 771         if(mgr->ref_count_rate++) {
 772                 if(mgr->sample_rate) {
 773                         runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
 774                 }
 775         }
 776
 777  _exit_open:
 778         mutex_unlock(&mgr->setup_mutex);
 779
 780         return err;
 781 }
 782
 783
 784 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
 785 {
 786         struct snd_mixart            *chip = snd_pcm_substream_chip(subs);
 787         struct mixart_mgr        *mgr = chip->mgr;
 788         struct snd_pcm_runtime *runtime = subs->runtime;
 789         struct snd_pcm *pcm = subs->pcm;
 790         struct mixart_stream     *stream;
 791         struct mixart_pipe       *pipe;
 792         int err = 0;
 793         int pcm_number;
 794
 795         mutex_lock(&mgr->setup_mutex);
 796
 797         if ( pcm == chip->pcm ) {
 798                 pcm_number = MIXART_PCM_ANALOG;
 799                 runtime->hw = snd_mixart_analog_caps;
 800         } else {
 801                 snd_BUG_ON(pcm != chip->pcm_dig);
 802                 pcm_number = MIXART_PCM_DIGITAL;
 803                 runtime->hw = snd_mixart_digital_caps;
 804         }
 805
 806         runtime->hw.channels_min = 2; /* for instance, no mono */
 807
 808         dev_dbg(chip->card->dev, "snd_mixart_capture_open C%d/P%d/Sub%d\n",
 809                 chip->chip_idx, pcm_number, subs->number);
 810
 811         /* get stream info */
 812         stream = &(chip->capture_stream[pcm_number]);
 813
 814         if (stream->status != MIXART_STREAM_STATUS_FREE){
 815                 /* streams in use */
 816                 dev_err(chip->card->dev,
 817                         "snd_mixart_capture_open C%d/P%d/Sub%d in use\n",
 818                         chip->chip_idx, pcm_number, subs->number);
 819                 err = -EBUSY;
 820                 goto _exit_open;
 821         }
 822
 823         /* get pipe pointer (in pipe) */
 824         pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
 825
 826         if (pipe == NULL) {
 827                 err = -EINVAL;
 828                 goto _exit_open;
 829         }
 830
 831         /* start the pipe if necessary */
 832         err = mixart_set_pipe_state(chip->mgr, pipe, 1);
 833         if( err < 0 ) {
 834                 dev_err(chip->card->dev, "error starting pipe!\n");
 835                 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
 836                 err = -EINVAL;
 837                 goto _exit_open;
 838         }
 839
 840         stream->pipe        = pipe;
 841         stream->pcm_number  = pcm_number;
 842         stream->status      = MIXART_STREAM_STATUS_OPEN;
 843         stream->substream   = subs;
 844         stream->channels    = 0; /* not configured yet */
 845
 846         runtime->private_data = stream;
 847
 848         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
 849         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
 850
 851         /* if a sample rate is already used, another stream cannot change */
 852         if(mgr->ref_count_rate++) {
 853                 if(mgr->sample_rate) {
 854                         runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
 855                 }
 856         }
 857
 858  _exit_open:
 859         mutex_unlock(&mgr->setup_mutex);
 860
 861         return err;
 862 }
 863
 864
 865
 866 static int snd_mixart_close(struct snd_pcm_substream *subs)
 867 {
 868         struct snd_mixart *chip = snd_pcm_substream_chip(subs);
 869         struct mixart_mgr *mgr = chip->mgr;
 870         struct mixart_stream *stream = subs->runtime->private_data;
 871
 872         mutex_lock(&mgr->setup_mutex);
 873
 874         dev_dbg(chip->card->dev, "snd_mixart_close C%d/P%d/Sub%d\n",
 875                 chip->chip_idx, stream->pcm_number, subs->number);
 876
 877         /* sample rate released */
 878         if(--mgr->ref_count_rate == 0) {
 879                 mgr->sample_rate = 0;
 880         }
 881
 882         /* delete pipe */
 883         if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
 884
 885                 dev_err(chip->card->dev,
 886                         "error snd_mixart_kill_ref_pipe C%dP%d\n",
 887                         chip->chip_idx, stream->pcm_number);
 888         }
 889
 890         stream->pipe      = NULL;
 891         stream->status    = MIXART_STREAM_STATUS_FREE;
 892         stream->substream = NULL;
 893
 894         mutex_unlock(&mgr->setup_mutex);
 895         return 0;
 896 }
 897
 898
 899 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
 900 {
 901         struct snd_pcm_runtime *runtime = subs->runtime;
 902         struct mixart_stream   *stream  = runtime->private_data;
 903
 904         return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
 905 }
 906
 907
 908
 909 static const struct snd_pcm_ops snd_mixart_playback_ops = {
 910         .open      = snd_mixart_playback_open,
 911         .close     = snd_mixart_close,
 912         .prepare   = snd_mixart_prepare,
 913         .hw_params = snd_mixart_hw_params,
 914         .hw_free   = snd_mixart_hw_free,
 915         .trigger   = snd_mixart_trigger,
 916         .pointer   = snd_mixart_stream_pointer,
 917 };
 918
 919 static const struct snd_pcm_ops snd_mixart_capture_ops = {
 920         .open      = snd_mixart_capture_open,
 921         .close     = snd_mixart_close,
 922         .prepare   = snd_mixart_prepare,
 923         .hw_params = snd_mixart_hw_params,
 924         .hw_free   = snd_mixart_hw_free,
 925         .trigger   = snd_mixart_trigger,
 926         .pointer   = snd_mixart_stream_pointer,
 927 };
 928
 929 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
 930 {
 931 #if 0
 932         struct snd_pcm_substream *subs;
 933         int stream;
 934
 935         for (stream = 0; stream < 2; stream++) {
 936                 int idx = 0;
 937                 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
 938                         /* set up the unique device id with the chip index */
 939                         subs->dma_device.id = subs->pcm->device << 16 |
 940                                 subs->stream << 8 | (subs->number + 1) |
 941                                 (chip->chip_idx + 1) << 24;
 942         }
 943 #endif
 944         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
 945                                        &chip->mgr->pci->dev,
 946                                        32*1024, 32*1024);
 947 }
 948
 949 /*
 950  */
 951 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
 952 {
 953         int err;
 954         struct snd_pcm *pcm;
 955         char name[32];
 956
 957         sprintf(name, "miXart analog %d", chip->chip_idx);
 958         if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
 959                                MIXART_PLAYBACK_STREAMS,
 960                                MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
 961                 dev_err(chip->card->dev,
 962                         "cannot create the analog pcm %d\n", chip->chip_idx);
 963                 return err;
 964         }
 965
 966         pcm->private_data = chip;
 967
 968         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
 969         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
 970
 971         pcm->info_flags = 0;
 972         pcm->nonatomic = true;
 973         strcpy(pcm->name, name);
 974
 975         preallocate_buffers(chip, pcm);
 976
 977         chip->pcm = pcm;
 978         return 0;
 979 }
 980
 981
 982 /*
 983  */
 984 static int snd_mixart_pcm_digital(struct snd_mixart *chip)
 985 {
 986         int err;
 987         struct snd_pcm *pcm;
 988         char name[32];
 989
 990         sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
 991         if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
 992                                MIXART_PLAYBACK_STREAMS,
 993                                MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
 994                 dev_err(chip->card->dev,
 995                         "cannot create the digital pcm %d\n", chip->chip_idx);
 996                 return err;
 997         }
 998
 999         pcm->private_data = chip;
1000
1001         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
1002         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
1003
1004         pcm->info_flags = 0;
1005         pcm->nonatomic = true;
1006         strcpy(pcm->name, name);
1007
1008         preallocate_buffers(chip, pcm);
1009
1010         chip->pcm_dig = pcm;
1011         return 0;
1012 }
1013
1014 static int snd_mixart_chip_free(struct snd_mixart *chip)
1015 {
1016         kfree(chip);
1017         return 0;
1018 }
1019
1020 static int snd_mixart_chip_dev_free(struct snd_device *device)
1021 {
1022         struct snd_mixart *chip = device->device_data;
1023         return snd_mixart_chip_free(chip);
1024 }
1025
1026
1027 /*
1028  */
1029 static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1030 {
1031         int err;
1032         struct snd_mixart *chip;
1033         static const struct snd_device_ops ops = {
1034                 .dev_free = snd_mixart_chip_dev_free,
1035         };
1036
1037         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1038         if (!chip)
1039                 return -ENOMEM;
1040
1041         chip->card = card;
1042         chip->chip_idx = idx;
1043         chip->mgr = mgr;
1044         card->sync_irq = mgr->irq;
1045
1046         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1047                 snd_mixart_chip_free(chip);
1048                 return err;
1049         }
1050
1051         mgr->chip[idx] = chip;
1052         return 0;
1053 }
1054
1055 int snd_mixart_create_pcm(struct snd_mixart* chip)
1056 {
1057         int err;
1058
1059         err = snd_mixart_pcm_analog(chip);
1060         if (err < 0)
1061                 return err;
1062
1063         if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1064
1065                 err = snd_mixart_pcm_digital(chip);
1066                 if (err < 0)
1067                         return err;
1068         }
1069         return err;
1070 }
1071
1072
1073 /*
1074  * release all the cards assigned to a manager instance
1075  */
1076 static int snd_mixart_free(struct mixart_mgr *mgr)
1077 {
1078         unsigned int i;
1079
1080         for (i = 0; i < mgr->num_cards; i++) {
1081                 if (mgr->chip[i])
1082                         snd_card_free(mgr->chip[i]->card);
1083         }
1084
1085         /* stop mailbox */
1086         snd_mixart_exit_mailbox(mgr);
1087
1088         /* release irq  */
1089         if (mgr->irq >= 0)
1090                 free_irq(mgr->irq, mgr);
1091
1092         /* reset board if some firmware was loaded */
1093         if(mgr->dsp_loaded) {
1094                 snd_mixart_reset_board(mgr);
1095                 dev_dbg(&mgr->pci->dev, "reset miXart !\n");
1096         }
1097
1098         /* release the i/o ports */
1099         for (i = 0; i < 2; ++i)
1100                 iounmap(mgr->mem[i].virt);
1101
1102         pci_release_regions(mgr->pci);
1103
1104         /* free flowarray */
1105         if(mgr->flowinfo.area) {
1106                 snd_dma_free_pages(&mgr->flowinfo);
1107                 mgr->flowinfo.area = NULL;
1108         }
1109         /* free bufferarray */
1110         if(mgr->bufferinfo.area) {
1111                 snd_dma_free_pages(&mgr->bufferinfo);
1112                 mgr->bufferinfo.area = NULL;
1113         }
1114
1115         pci_disable_device(mgr->pci);
1116         kfree(mgr);
1117         return 0;
1118 }
1119
1120 /*
1121  * proc interface
1122  */
1123
1124 /*
1125   mixart_BA0 proc interface for BAR 0 - read callback
1126  */
1127 static ssize_t snd_mixart_BA0_read(struct snd_info_entry *entry,
1128                                    void *file_private_data,
1129                                    struct file *file, char __user *buf,
1130                                    size_t count, loff_t pos)
1131 {
1132         struct mixart_mgr *mgr = entry->private_data;
1133
1134         count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1135         if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count))
1136                 return -EFAULT;
1137         return count;
1138 }
1139
1140 /*
1141   mixart_BA1 proc interface for BAR 1 - read callback
1142  */
1143 static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry,
1144                                    void *file_private_data,
1145                                    struct file *file, char __user *buf,
1146                                    size_t count, loff_t pos)
1147 {
1148         struct mixart_mgr *mgr = entry->private_data;
1149
1150         count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1151         if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count))
1152                 return -EFAULT;
1153         return count;
1154 }
1155
1156 static const struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1157         .read   = snd_mixart_BA0_read,
1158 };
1159
1160 static const struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1161         .read   = snd_mixart_BA1_read,
1162 };
1163
1164
1165 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1166                                  struct snd_info_buffer *buffer)
1167 {
1168         struct snd_mixart *chip = entry->private_data;
1169         u32 ref;
1170
1171         snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1172
1173         /* stats available when embedded OS is running */
1174         if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1175                 snd_iprintf(buffer, "- hardware -\n");
1176                 switch (chip->mgr->board_type ) {
1177                 case MIXART_DAUGHTER_TYPE_NONE     : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1178                 case MIXART_DAUGHTER_TYPE_AES      : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1179                 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1180                 default:                             snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1181                 }
1182
1183                 snd_iprintf(buffer, "- system load -\n");
1184
1185                 /* get perf reference */
1186
1187                 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1188
1189                 if (ref) {
1190                         u32 mailbox   = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1191                         u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1192                         u32 interr    = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1193
1194                         snd_iprintf(buffer, "\tstreaming          : %d\n", streaming);
1195                         snd_iprintf(buffer, "\tmailbox            : %d\n", mailbox);
1196                         snd_iprintf(buffer, "\tinterrupts handling : %d\n\n", interr);
1197                 }
1198         } /* endif elf loaded */
1199 }
1200
1201 static void snd_mixart_proc_init(struct snd_mixart *chip)
1202 {
1203         struct snd_info_entry *entry;
1204
1205         /* text interface to read perf and temp meters */
1206         snd_card_ro_proc_new(chip->card, "board_info", chip,
1207                              snd_mixart_proc_read);
1208
1209         if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1210                 entry->content = SNDRV_INFO_CONTENT_DATA;
1211                 entry->private_data = chip->mgr;
1212                 entry->c.ops = &snd_mixart_proc_ops_BA0;
1213                 entry->size = MIXART_BA0_SIZE;
1214         }
1215         if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1216                 entry->content = SNDRV_INFO_CONTENT_DATA;
1217                 entry->private_data = chip->mgr;
1218                 entry->c.ops = &snd_mixart_proc_ops_BA1;
1219                 entry->size = MIXART_BA1_SIZE;
1220         }
1221 }
1222 /* end of proc interface */
1223
1224
1225 /*
1226  *    probe function - creates the card manager
1227  */
1228 static int snd_mixart_probe(struct pci_dev *pci,
1229                             const struct pci_device_id *pci_id)
1230 {
1231         static int dev;
1232         struct mixart_mgr *mgr;
1233         unsigned int i;
1234         int err;
1235         size_t size;
1236
1237         /*
1238          */
1239         if (dev >= SNDRV_CARDS)
1240                 return -ENODEV;
1241         if (! enable[dev]) {
1242                 dev++;
1243                 return -ENOENT;
1244         }
1245
1246         /* enable PCI device */
1247         if ((err = pci_enable_device(pci)) < 0)
1248                 return err;
1249         pci_set_master(pci);
1250
1251         /* check if we can restrict PCI DMA transfers to 32 bits */
1252         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1253                 dev_err(&pci->dev,
1254                         "architecture does not support 32bit PCI busmaster DMA\n");
1255                 pci_disable_device(pci);
1256                 return -ENXIO;
1257         }
1258
1259         /*
1260          */
1261         mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1262         if (! mgr) {
1263                 pci_disable_device(pci);
1264                 return -ENOMEM;
1265         }
1266
1267         mgr->pci = pci;
1268         mgr->irq = -1;
1269
1270         /* resource assignment */
1271         if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
1272                 kfree(mgr);
1273                 pci_disable_device(pci);
1274                 return err;
1275         }
1276         for (i = 0; i < 2; i++) {
1277                 mgr->mem[i].phys = pci_resource_start(pci, i);
1278                 mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1279                 if (!mgr->mem[i].virt) {
1280                         dev_err(&pci->dev, "unable to remap resource 0x%lx\n",
1281                                mgr->mem[i].phys);
1282                         snd_mixart_free(mgr);
1283                         return -EBUSY;
1284                 }
1285         }
1286
1287         if (request_threaded_irq(pci->irq, snd_mixart_interrupt,
1288                                  snd_mixart_threaded_irq, IRQF_SHARED,
1289                                  KBUILD_MODNAME, mgr)) {
1290                 dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
1291                 snd_mixart_free(mgr);
1292                 return -EBUSY;
1293         }
1294         mgr->irq = pci->irq;
1295
1296         /* init mailbox  */
1297         mgr->msg_fifo_readptr = 0;
1298         mgr->msg_fifo_writeptr = 0;
1299
1300         mutex_init(&mgr->lock);
1301         mutex_init(&mgr->msg_lock);
1302         init_waitqueue_head(&mgr->msg_sleep);
1303         atomic_set(&mgr->msg_processed, 0);
1304
1305         /* init setup mutex*/
1306         mutex_init(&mgr->setup_mutex);
1307
1308         /* card assignment */
1309         mgr->num_cards = MIXART_MAX_CARDS; /* 4  FIXME: configurable? */
1310         for (i = 0; i < mgr->num_cards; i++) {
1311                 struct snd_card *card;
1312                 char tmpid[16];
1313                 int idx;
1314
1315                 if (index[dev] < 0)
1316                         idx = index[dev];
1317                 else
1318                         idx = index[dev] + i;
1319                 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1320                 err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
1321                                    0, &card);
1322
1323                 if (err < 0) {
1324                         dev_err(&pci->dev, "cannot allocate the card %d\n", i);
1325                         snd_mixart_free(mgr);
1326                         return err;
1327                 }
1328
1329                 strcpy(card->driver, CARD_NAME);
1330                 snprintf(card->shortname, sizeof(card->shortname),
1331                          "Digigram miXart [PCM #%d]", i);
1332                 snprintf(card->longname, sizeof(card->longname),
1333                         "Digigram miXart at 0x%lx & 0x%lx, irq %i [PCM #%d]",
1334                         mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq, i);
1335
1336                 if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1337                         snd_card_free(card);
1338                         snd_mixart_free(mgr);
1339                         return err;
1340                 }
1341
1342                 if(i==0) {
1343                         /* init proc interface only for chip0 */
1344                         snd_mixart_proc_init(mgr->chip[i]);
1345                 }
1346
1347                 if ((err = snd_card_register(card)) < 0) {
1348                         snd_mixart_free(mgr);
1349                         return err;
1350                 }
1351         }
1352
1353         /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1354         mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1355
1356         /* create array of streaminfo */
1357         size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1358                             sizeof(struct mixart_flowinfo)) );
1359         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1360                                 size, &mgr->flowinfo) < 0) {
1361                 snd_mixart_free(mgr);
1362                 return -ENOMEM;
1363         }
1364         /* init streaminfo_array */
1365         memset(mgr->flowinfo.area, 0, size);
1366
1367         /* create array of bufferinfo */
1368         size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1369                             sizeof(struct mixart_bufferinfo)) );
1370         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1371                                 size, &mgr->bufferinfo) < 0) {
1372                 snd_mixart_free(mgr);
1373                 return -ENOMEM;
1374         }
1375         /* init bufferinfo_array */
1376         memset(mgr->bufferinfo.area, 0, size);
1377
1378         /* set up firmware */
1379         err = snd_mixart_setup_firmware(mgr);
1380         if (err < 0) {
1381                 snd_mixart_free(mgr);
1382                 return err;
1383         }
1384
1385         pci_set_drvdata(pci, mgr);
1386         dev++;
1387         return 0;
1388 }
1389
1390 static void snd_mixart_remove(struct pci_dev *pci)
1391 {
1392         snd_mixart_free(pci_get_drvdata(pci));
1393 }
1394
1395 static struct pci_driver mixart_driver = {
1396         .name = KBUILD_MODNAME,
1397         .id_table = snd_mixart_ids,
1398         .probe = snd_mixart_probe,
1399         .remove = snd_mixart_remove,
1400 };
1401
1402 module_pci_driver(mixart_driver);