linux/sound/pci/mixart/mixart.c
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   1/*
   2 * Driver for Digigram miXart soundcards
   3 *
   4 * main file with alsa callbacks
   5 *
   6 * Copyright (c) 2003 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 <linux/init.h>
  25#include <linux/interrupt.h>
  26#include <linux/pci.h>
  27#include <linux/dma-mapping.h>
  28#include <linux/module.h>
  29#include <linux/mutex.h>
  30#include <linux/slab.h>
  31
  32#include <sound/core.h>
  33#include <sound/initval.h>
  34#include <sound/info.h>
  35#include <sound/control.h>
  36#include <sound/pcm.h>
  37#include <sound/pcm_params.h>
  38#include "mixart.h"
  39#include "mixart_hwdep.h"
  40#include "mixart_core.h"
  41#include "mixart_mixer.h"
  42
  43#define CARD_NAME "miXart"
  44
  45MODULE_AUTHOR("Digigram <alsa@digigram.com>");
  46MODULE_DESCRIPTION("Digigram " CARD_NAME);
  47MODULE_LICENSE("GPL");
  48MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
  49
  50static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;             /* Index 0-MAX */
  51static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;              /* ID for this card */
  52static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  53
  54module_param_array(index, int, NULL, 0444);
  55MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
  56module_param_array(id, charp, NULL, 0444);
  57MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
  58module_param_array(enable, bool, NULL, 0444);
  59MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
  60
  61/*
  62 */
  63
  64static const struct pci_device_id snd_mixart_ids[] = {
  65        { PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */
  66        { 0, }
  67};
  68
  69MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
  70
  71
  72static int mixart_set_pipe_state(struct mixart_mgr *mgr,
  73                                 struct mixart_pipe *pipe, int start)
  74{
  75        struct mixart_group_state_req group_state;
  76        struct mixart_group_state_resp group_state_resp;
  77        struct mixart_msg request;
  78        int err;
  79        u32 system_msg_uid;
  80
  81        switch(pipe->status) {
  82        case PIPE_RUNNING:
  83        case PIPE_CLOCK_SET:
  84                if(start) return 0; /* already started */
  85                break;
  86        case PIPE_STOPPED:
  87                if(!start) return 0; /* already stopped */
  88                break;
  89        default:
  90                dev_err(&mgr->pci->dev,
  91                        "error mixart_set_pipe_state called with wrong pipe->status!\n");
  92                return -EINVAL;      /* function called with wrong pipe status */
  93        }
  94
  95        system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
  96
  97        /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
  98
  99        request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
 100        request.uid = (struct mixart_uid){0,0};
 101        request.data = &system_msg_uid;
 102        request.size = sizeof(system_msg_uid);
 103
 104        err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
 105        if(err) {
 106                dev_err(&mgr->pci->dev,
 107                        "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
 108                return err;
 109        }
 110
 111        /* start or stop the pipe (1 pipe) */
 112
 113        memset(&group_state, 0, sizeof(group_state));
 114        group_state.pipe_count = 1;
 115        group_state.pipe_uid[0] = pipe->group_uid;
 116
 117        if(start)
 118                request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
 119        else
 120                request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
 121
 122        request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
 123        request.data = &group_state;
 124        request.size = sizeof(group_state);
 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_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n",
 130                        err, group_state_resp.txx_status);
 131                return -EINVAL;
 132        }
 133
 134        if(start) {
 135                u32 stat = 0;
 136
 137                group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
 138
 139                err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
 140                if (err < 0 || group_state_resp.txx_status != 0) {
 141                        dev_err(&mgr->pci->dev,
 142                                "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n",
 143                                err, group_state_resp.txx_status);
 144                        return -EINVAL;
 145                }
 146
 147                /* in case of start send a synchro top */
 148
 149                request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
 150                request.uid = (struct mixart_uid){0,0};
 151                request.data = NULL;
 152                request.size = 0;
 153
 154                err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
 155                if (err < 0 || stat != 0) {
 156                        dev_err(&mgr->pci->dev,
 157                                "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n",
 158                                err, stat);
 159                        return -EINVAL;
 160                }
 161
 162                pipe->status = PIPE_RUNNING;
 163        }
 164        else /* !start */
 165                pipe->status = PIPE_STOPPED;
 166
 167        return 0;
 168}
 169
 170
 171static int mixart_set_clock(struct mixart_mgr *mgr,
 172                            struct mixart_pipe *pipe, unsigned int rate)
 173{
 174        struct mixart_msg request;
 175        struct mixart_clock_properties clock_properties;
 176        struct mixart_clock_properties_resp clock_prop_resp;
 177        int err;
 178
 179        switch(pipe->status) {
 180        case PIPE_CLOCK_SET:
 181                break;
 182        case PIPE_RUNNING:
 183                if(rate != 0)
 184                        break;
 185        default:
 186                if(rate == 0)
 187                        return 0; /* nothing to do */
 188                else {
 189                        dev_err(&mgr->pci->dev,
 190                                "error mixart_set_clock(%d) called with wrong pipe->status !\n",
 191                                rate);
 192                        return -EINVAL;
 193                }
 194        }
 195
 196        memset(&clock_properties, 0, sizeof(clock_properties));
 197        clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
 198        clock_properties.clock_mode = CM_STANDALONE;
 199        clock_properties.frequency = rate;
 200        clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
 201        clock_properties.uid_caller[0] = pipe->group_uid;
 202
 203        dev_dbg(&mgr->pci->dev, "mixart_set_clock to %d kHz\n", rate);
 204
 205        request.message_id = MSG_CLOCK_SET_PROPERTIES;
 206        request.uid = mgr->uid_console_manager;
 207        request.data = &clock_properties;
 208        request.size = sizeof(clock_properties);
 209
 210        err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
 211        if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
 212                dev_err(&mgr->pci->dev,
 213                        "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n",
 214                        err, clock_prop_resp.status, clock_prop_resp.clock_mode);
 215                return -EINVAL;
 216        }
 217
 218        if(rate)  pipe->status = PIPE_CLOCK_SET;
 219        else      pipe->status = PIPE_RUNNING;
 220
 221        return 0;
 222}
 223
 224
 225/*
 226 *  Allocate or reference output pipe for analog IOs (pcmp0/1)
 227 */
 228struct mixart_pipe *
 229snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
 230                        int monitoring)
 231{
 232        int stream_count;
 233        struct mixart_pipe *pipe;
 234        struct mixart_msg request;
 235
 236        if(capture) {
 237                if (pcm_number == MIXART_PCM_ANALOG) {
 238                        pipe = &(chip->pipe_in_ana);  /* analog inputs */
 239                } else {
 240                        pipe = &(chip->pipe_in_dig); /* digital inputs */
 241                }
 242                request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
 243                stream_count = MIXART_CAPTURE_STREAMS;
 244        } else {
 245                if (pcm_number == MIXART_PCM_ANALOG) {
 246                        pipe = &(chip->pipe_out_ana);  /* analog outputs */
 247                } else {
 248                        pipe = &(chip->pipe_out_dig);  /* digital outputs */
 249                }
 250                request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
 251                stream_count = MIXART_PLAYBACK_STREAMS;
 252        }
 253
 254        /* a new stream is opened and there are already all streams in use */
 255        if( (monitoring == 0) && (pipe->references >= stream_count) ) {
 256                return NULL;
 257        }
 258
 259        /* pipe is not yet defined */
 260        if( pipe->status == PIPE_UNDEFINED ) {
 261                int err, i;
 262                struct {
 263                        struct mixart_streaming_group_req sgroup_req;
 264                        struct mixart_streaming_group sgroup_resp;
 265                } *buf;
 266
 267                dev_dbg(chip->card->dev,
 268                        "add_ref_pipe audio chip(%d) pcm(%d)\n",
 269                        chip->chip_idx, pcm_number);
 270
 271                buf = kmalloc(sizeof(*buf), GFP_KERNEL);
 272                if (!buf)
 273                        return NULL;
 274
 275                request.uid = (struct mixart_uid){0,0};      /* should be StreamManagerUID, but zero is OK if there is only one ! */
 276                request.data = &buf->sgroup_req;
 277                request.size = sizeof(buf->sgroup_req);
 278
 279                memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
 280
 281                buf->sgroup_req.stream_count = stream_count;
 282                buf->sgroup_req.channel_count = 2;
 283                buf->sgroup_req.latency = 256;
 284                buf->sgroup_req.connector = pipe->uid_left_connector;  /* the left connector */
 285
 286                for (i=0; i<stream_count; i++) {
 287                        int j;
 288                        struct mixart_flowinfo *flowinfo;
 289                        struct mixart_bufferinfo *bufferinfo;
 290                        
 291                        /* we don't yet know the format, so config 16 bit pcm audio for instance */
 292                        buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
 293                        buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
 294                        buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
 295
 296                        /* find the right bufferinfo_array */
 297                        j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
 298                        if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
 299
 300                        buf->sgroup_req.flow_entry[i] = j;
 301
 302                        flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
 303                        flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
 304                        flowinfo[j].bufferinfo_count = 1;               /* 1 will set the miXart to ring-buffer mode ! */
 305
 306                        bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
 307                        bufferinfo[j].buffer_address = 0;               /* buffer is not yet allocated */
 308                        bufferinfo[j].available_length = 0;             /* buffer is not yet allocated */
 309
 310                        /* construct the identifier of the stream buffer received in the interrupts ! */
 311                        bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
 312                        if(capture) {
 313                                bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
 314                        }
 315                }
 316
 317                err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
 318                if((err < 0) || (buf->sgroup_resp.status != 0)) {
 319                        dev_err(chip->card->dev,
 320                                "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n",
 321                                err, buf->sgroup_resp.status);
 322                        kfree(buf);
 323                        return NULL;
 324                }
 325
 326                pipe->group_uid = buf->sgroup_resp.group;     /* id of the pipe, as returned by embedded */
 327                pipe->stream_count = buf->sgroup_resp.stream_count;
 328                /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
 329
 330                pipe->status = PIPE_STOPPED;
 331                kfree(buf);
 332        }
 333
 334        if(monitoring)  pipe->monitoring = 1;
 335        else            pipe->references++;
 336
 337        return pipe;
 338}
 339
 340
 341int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
 342                             struct mixart_pipe *pipe, int monitoring)
 343{
 344        int err = 0;
 345
 346        if(pipe->status == PIPE_UNDEFINED)
 347                return 0;
 348
 349        if(monitoring)
 350                pipe->monitoring = 0;
 351        else
 352                pipe->references--;
 353
 354        if((pipe->references <= 0) && (pipe->monitoring == 0)) {
 355
 356                struct mixart_msg request;
 357                struct mixart_delete_group_resp delete_resp;
 358
 359                /* release the clock */
 360                err = mixart_set_clock( mgr, pipe, 0);
 361                if( err < 0 ) {
 362                        dev_err(&mgr->pci->dev,
 363                                "mixart_set_clock(0) return error!\n");
 364                }
 365
 366                /* stop the pipe */
 367                err = mixart_set_pipe_state(mgr, pipe, 0);
 368                if( err < 0 ) {
 369                        dev_err(&mgr->pci->dev, "error stopping pipe!\n");
 370                }
 371
 372                request.message_id = MSG_STREAM_DELETE_GROUP;
 373                request.uid = (struct mixart_uid){0,0};
 374                request.data = &pipe->group_uid;            /* the streaming group ! */
 375                request.size = sizeof(pipe->group_uid);
 376
 377                /* delete the pipe */
 378                err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
 379                if ((err < 0) || (delete_resp.status != 0)) {
 380                        dev_err(&mgr->pci->dev,
 381                                "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n",
 382                                err, delete_resp.status);
 383                }
 384
 385                pipe->group_uid = (struct mixart_uid){0,0};
 386                pipe->stream_count = 0;
 387                pipe->status = PIPE_UNDEFINED;
 388        }
 389
 390        return err;
 391}
 392
 393static int mixart_set_stream_state(struct mixart_stream *stream, int start)
 394{
 395        struct snd_mixart *chip;
 396        struct mixart_stream_state_req stream_state_req;
 397        struct mixart_msg request;
 398
 399        if(!stream->substream)
 400                return -EINVAL;
 401
 402        memset(&stream_state_req, 0, sizeof(stream_state_req));
 403        stream_state_req.stream_count = 1;
 404        stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
 405        stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
 406
 407        if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 408                request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
 409        else
 410                request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
 411
 412        request.uid = (struct mixart_uid){0,0};
 413        request.data = &stream_state_req;
 414        request.size = sizeof(stream_state_req);
 415
 416        stream->abs_period_elapsed = 0;            /* reset stream pos      */
 417        stream->buf_periods = 0;
 418        stream->buf_period_frag = 0;
 419
 420        chip = snd_pcm_substream_chip(stream->substream);
 421
 422        return snd_mixart_send_msg_nonblock(chip->mgr, &request);
 423}
 424
 425/*
 426 *  Trigger callback
 427 */
 428
 429static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
 430{
 431        struct mixart_stream *stream = subs->runtime->private_data;
 432
 433        switch (cmd) {
 434        case SNDRV_PCM_TRIGGER_START:
 435
 436                dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_START\n");
 437
 438                /* START_STREAM */
 439                if( mixart_set_stream_state(stream, 1) )
 440                        return -EINVAL;
 441
 442                stream->status = MIXART_STREAM_STATUS_RUNNING;
 443
 444                break;
 445        case SNDRV_PCM_TRIGGER_STOP:
 446
 447                /* STOP_STREAM */
 448                if( mixart_set_stream_state(stream, 0) )
 449                        return -EINVAL;
 450
 451                stream->status = MIXART_STREAM_STATUS_OPEN;
 452
 453                dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_STOP\n");
 454
 455                break;
 456
 457        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 458                /* TODO */
 459                stream->status = MIXART_STREAM_STATUS_PAUSE;
 460                dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_PUSH\n");
 461                break;
 462        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 463                /* TODO */
 464                stream->status = MIXART_STREAM_STATUS_RUNNING;
 465                dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_RELEASE\n");
 466                break;
 467        default:
 468                return -EINVAL;
 469        }
 470        return 0;
 471}
 472
 473static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
 474{
 475        unsigned long timeout = jiffies + HZ;
 476        while (atomic_read(&mgr->msg_processed) > 0) {
 477                if (time_after(jiffies, timeout)) {
 478                        dev_err(&mgr->pci->dev,
 479                                "mixart: cannot process nonblock events!\n");
 480                        return -EBUSY;
 481                }
 482                schedule_timeout_uninterruptible(1);
 483        }
 484        return 0;
 485}
 486
 487/*
 488 *  prepare callback for all pcms
 489 */
 490static int snd_mixart_prepare(struct snd_pcm_substream *subs)
 491{
 492        struct snd_mixart *chip = snd_pcm_substream_chip(subs);
 493        struct mixart_stream *stream = subs->runtime->private_data;
 494
 495        /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
 496
 497        dev_dbg(chip->card->dev, "snd_mixart_prepare\n");
 498
 499        mixart_sync_nonblock_events(chip->mgr);
 500
 501        /* only the first stream can choose the sample rate */
 502        /* the further opened streams will be limited to its frequency (see open) */
 503        if(chip->mgr->ref_count_rate == 1)
 504                chip->mgr->sample_rate = subs->runtime->rate;
 505
 506        /* set the clock only once (first stream) on the same pipe */
 507        if(stream->pipe->references == 1) {
 508                if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
 509                        return -EINVAL;
 510        }
 511
 512        return 0;
 513}
 514
 515
 516static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
 517{
 518        int err;
 519        struct snd_mixart *chip;
 520        struct mixart_msg request;
 521        struct mixart_stream_param_desc stream_param;
 522        struct mixart_return_uid resp;
 523
 524        chip = snd_pcm_substream_chip(stream->substream);
 525
 526        memset(&stream_param, 0, sizeof(stream_param));
 527
 528        stream_param.coding_type = CT_LINEAR;
 529        stream_param.number_of_channel = stream->channels;
 530
 531        stream_param.sampling_freq = chip->mgr->sample_rate;
 532        if(stream_param.sampling_freq == 0)
 533                stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
 534
 535        switch(format){
 536        case SNDRV_PCM_FORMAT_U8:
 537                stream_param.sample_type = ST_INTEGER_8;
 538                stream_param.sample_size = 8;
 539                break;
 540        case SNDRV_PCM_FORMAT_S16_LE:
 541                stream_param.sample_type = ST_INTEGER_16LE;
 542                stream_param.sample_size = 16;
 543                break;
 544        case SNDRV_PCM_FORMAT_S16_BE:
 545                stream_param.sample_type = ST_INTEGER_16BE;
 546                stream_param.sample_size = 16;
 547                break;
 548        case SNDRV_PCM_FORMAT_S24_3LE:
 549                stream_param.sample_type = ST_INTEGER_24LE;
 550                stream_param.sample_size = 24;
 551                break;
 552        case SNDRV_PCM_FORMAT_S24_3BE:
 553                stream_param.sample_type = ST_INTEGER_24BE;
 554                stream_param.sample_size = 24;
 555                break;
 556        case SNDRV_PCM_FORMAT_FLOAT_LE:
 557                stream_param.sample_type = ST_FLOATING_POINT_32LE;
 558                stream_param.sample_size = 32;
 559                break;
 560        case  SNDRV_PCM_FORMAT_FLOAT_BE:
 561                stream_param.sample_type = ST_FLOATING_POINT_32BE;
 562                stream_param.sample_size = 32;
 563                break;
 564        default:
 565                dev_err(chip->card->dev,
 566                        "error mixart_set_format() : unknown format\n");
 567                return -EINVAL;
 568        }
 569
 570        dev_dbg(chip->card->dev,
 571                "set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
 572                   stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
 573
 574        /* TODO: what else to configure ? */
 575        /* stream_param.samples_per_frame = 2; */
 576        /* stream_param.bytes_per_frame = 4; */
 577        /* stream_param.bytes_per_sample = 2; */
 578
 579        stream_param.pipe_count = 1;      /* set to 1 */
 580        stream_param.stream_count = 1;    /* set to 1 */
 581        stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
 582        stream_param.stream_desc[0].stream_idx = stream->substream->number;
 583
 584        request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
 585        request.uid = (struct mixart_uid){0,0};
 586        request.data = &stream_param;
 587        request.size = sizeof(stream_param);
 588
 589        err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
 590        if((err < 0) || resp.error_code) {
 591                dev_err(chip->card->dev,
 592                        "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n",
 593                        err, resp.error_code);
 594                return -EINVAL;
 595        }
 596        return 0;
 597}
 598
 599
 600/*
 601 *  HW_PARAMS callback for all pcms
 602 */
 603static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
 604                                struct snd_pcm_hw_params *hw)
 605{
 606        struct snd_mixart *chip = snd_pcm_substream_chip(subs);
 607        struct mixart_mgr *mgr = chip->mgr;
 608        struct mixart_stream *stream = subs->runtime->private_data;
 609        snd_pcm_format_t format;
 610        int err;
 611        int channels;
 612
 613        /* set up channels */
 614        channels = params_channels(hw);
 615
 616        /*  set up format for the stream */
 617        format = params_format(hw);
 618
 619        mutex_lock(&mgr->setup_mutex);
 620
 621        /* update the stream levels */
 622        if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
 623                int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
 624                if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
 625                        mixart_update_playback_stream_level(chip, is_aes, subs->number);
 626                else
 627                        mixart_update_capture_stream_level( chip, is_aes);
 628        }
 629
 630        stream->channels = channels;
 631
 632        /* set the format to the board */
 633        err = mixart_set_format(stream, format);
 634        if(err < 0) {
 635                mutex_unlock(&mgr->setup_mutex);
 636                return err;
 637        }
 638
 639        /* allocate buffer */
 640        err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
 641
 642        if (err > 0) {
 643                struct mixart_bufferinfo *bufferinfo;
 644                int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
 645                if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
 646                        i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
 647                }
 648                
 649                bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
 650                bufferinfo[i].buffer_address = subs->runtime->dma_addr;
 651                bufferinfo[i].available_length = subs->runtime->dma_bytes;
 652                /* bufferinfo[i].buffer_id  is already defined */
 653
 654                dev_dbg(chip->card->dev,
 655                        "snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n",
 656                        i, bufferinfo[i].buffer_address,
 657                                bufferinfo[i].available_length,
 658                                subs->number);
 659        }
 660        mutex_unlock(&mgr->setup_mutex);
 661
 662        return err;
 663}
 664
 665static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
 666{
 667        struct snd_mixart *chip = snd_pcm_substream_chip(subs);
 668        snd_pcm_lib_free_pages(subs);
 669        mixart_sync_nonblock_events(chip->mgr);
 670        return 0;
 671}
 672
 673
 674
 675/*
 676 *  TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
 677 */
 678static struct snd_pcm_hardware snd_mixart_analog_caps =
 679{
 680        .info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 681                              SNDRV_PCM_INFO_MMAP_VALID |
 682                              SNDRV_PCM_INFO_PAUSE),
 683        .formats          = ( SNDRV_PCM_FMTBIT_U8 |
 684                              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
 685                              SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
 686                              SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
 687        .rates            = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 688        .rate_min         = 8000,
 689        .rate_max         = 48000,
 690        .channels_min     = 1,
 691        .channels_max     = 2,
 692        .buffer_bytes_max = (32*1024),
 693        .period_bytes_min = 256,                  /* 256 frames U8 mono*/
 694        .period_bytes_max = (16*1024),
 695        .periods_min      = 2,
 696        .periods_max      = (32*1024/256),
 697};
 698
 699static struct snd_pcm_hardware snd_mixart_digital_caps =
 700{
 701        .info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 702                              SNDRV_PCM_INFO_MMAP_VALID |
 703                              SNDRV_PCM_INFO_PAUSE),
 704        .formats          = ( SNDRV_PCM_FMTBIT_U8 |
 705                              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
 706                              SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
 707                              SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
 708        .rates            = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
 709        .rate_min         = 32000,
 710        .rate_max         = 48000,
 711        .channels_min     = 1,
 712        .channels_max     = 2,
 713        .buffer_bytes_max = (32*1024),
 714        .period_bytes_min = 256,                  /* 256 frames U8 mono*/
 715        .period_bytes_max = (16*1024),
 716        .periods_min      = 2,
 717        .periods_max      = (32*1024/256),
 718};
 719
 720
 721static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
 722{
 723        struct snd_mixart            *chip = snd_pcm_substream_chip(subs);
 724        struct mixart_mgr        *mgr = chip->mgr;
 725        struct snd_pcm_runtime *runtime = subs->runtime;
 726        struct snd_pcm *pcm = subs->pcm;
 727        struct mixart_stream     *stream;
 728        struct mixart_pipe       *pipe;
 729        int err = 0;
 730        int pcm_number;
 731
 732        mutex_lock(&mgr->setup_mutex);
 733
 734        if ( pcm == chip->pcm ) {
 735                pcm_number = MIXART_PCM_ANALOG;
 736                runtime->hw = snd_mixart_analog_caps;
 737        } else {
 738                snd_BUG_ON(pcm != chip->pcm_dig);
 739                pcm_number = MIXART_PCM_DIGITAL;
 740                runtime->hw = snd_mixart_digital_caps;
 741        }
 742        dev_dbg(chip->card->dev,
 743                "snd_mixart_playback_open C%d/P%d/Sub%d\n",
 744                chip->chip_idx, pcm_number, subs->number);
 745
 746        /* get stream info */
 747        stream = &(chip->playback_stream[pcm_number][subs->number]);
 748
 749        if (stream->status != MIXART_STREAM_STATUS_FREE){
 750                /* streams in use */
 751                dev_err(chip->card->dev,
 752                        "snd_mixart_playback_open C%d/P%d/Sub%d in use\n",
 753                        chip->chip_idx, pcm_number, subs->number);
 754                err = -EBUSY;
 755                goto _exit_open;
 756        }
 757
 758        /* get pipe pointer (out pipe) */
 759        pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
 760
 761        if (pipe == NULL) {
 762                err = -EINVAL;
 763                goto _exit_open;
 764        }
 765
 766        /* start the pipe if necessary */
 767        err = mixart_set_pipe_state(chip->mgr, pipe, 1);
 768        if( err < 0 ) {
 769                dev_err(chip->card->dev, "error starting pipe!\n");
 770                snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
 771                err = -EINVAL;
 772                goto _exit_open;
 773        }
 774
 775        stream->pipe        = pipe;
 776        stream->pcm_number  = pcm_number;
 777        stream->status      = MIXART_STREAM_STATUS_OPEN;
 778        stream->substream   = subs;
 779        stream->channels    = 0; /* not configured yet */
 780
 781        runtime->private_data = stream;
 782
 783        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
 784        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
 785
 786        /* if a sample rate is already used, another stream cannot change */
 787        if(mgr->ref_count_rate++) {
 788                if(mgr->sample_rate) {
 789                        runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
 790                }
 791        }
 792
 793 _exit_open:
 794        mutex_unlock(&mgr->setup_mutex);
 795
 796        return err;
 797}
 798
 799
 800static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
 801{
 802        struct snd_mixart            *chip = snd_pcm_substream_chip(subs);
 803        struct mixart_mgr        *mgr = chip->mgr;
 804        struct snd_pcm_runtime *runtime = subs->runtime;
 805        struct snd_pcm *pcm = subs->pcm;
 806        struct mixart_stream     *stream;
 807        struct mixart_pipe       *pipe;
 808        int err = 0;
 809        int pcm_number;
 810
 811        mutex_lock(&mgr->setup_mutex);
 812
 813        if ( pcm == chip->pcm ) {
 814                pcm_number = MIXART_PCM_ANALOG;
 815                runtime->hw = snd_mixart_analog_caps;
 816        } else {
 817                snd_BUG_ON(pcm != chip->pcm_dig);
 818                pcm_number = MIXART_PCM_DIGITAL;
 819                runtime->hw = snd_mixart_digital_caps;
 820        }
 821
 822        runtime->hw.channels_min = 2; /* for instance, no mono */
 823
 824        dev_dbg(chip->card->dev, "snd_mixart_capture_open C%d/P%d/Sub%d\n",
 825                chip->chip_idx, pcm_number, subs->number);
 826
 827        /* get stream info */
 828        stream = &(chip->capture_stream[pcm_number]);
 829
 830        if (stream->status != MIXART_STREAM_STATUS_FREE){
 831                /* streams in use */
 832                dev_err(chip->card->dev,
 833                        "snd_mixart_capture_open C%d/P%d/Sub%d in use\n",
 834                        chip->chip_idx, pcm_number, subs->number);
 835                err = -EBUSY;
 836                goto _exit_open;
 837        }
 838
 839        /* get pipe pointer (in pipe) */
 840        pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
 841
 842        if (pipe == NULL) {
 843                err = -EINVAL;
 844                goto _exit_open;
 845        }
 846
 847        /* start the pipe if necessary */
 848        err = mixart_set_pipe_state(chip->mgr, pipe, 1);
 849        if( err < 0 ) {
 850                dev_err(chip->card->dev, "error starting pipe!\n");
 851                snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
 852                err = -EINVAL;
 853                goto _exit_open;
 854        }
 855
 856        stream->pipe        = pipe;
 857        stream->pcm_number  = pcm_number;
 858        stream->status      = MIXART_STREAM_STATUS_OPEN;
 859        stream->substream   = subs;
 860        stream->channels    = 0; /* not configured yet */
 861
 862        runtime->private_data = stream;
 863
 864        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
 865        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
 866
 867        /* if a sample rate is already used, another stream cannot change */
 868        if(mgr->ref_count_rate++) {
 869                if(mgr->sample_rate) {
 870                        runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
 871                }
 872        }
 873
 874 _exit_open:
 875        mutex_unlock(&mgr->setup_mutex);
 876
 877        return err;
 878}
 879
 880
 881
 882static int snd_mixart_close(struct snd_pcm_substream *subs)
 883{
 884        struct snd_mixart *chip = snd_pcm_substream_chip(subs);
 885        struct mixart_mgr *mgr = chip->mgr;
 886        struct mixart_stream *stream = subs->runtime->private_data;
 887
 888        mutex_lock(&mgr->setup_mutex);
 889
 890        dev_dbg(chip->card->dev, "snd_mixart_close C%d/P%d/Sub%d\n",
 891                chip->chip_idx, stream->pcm_number, subs->number);
 892
 893        /* sample rate released */
 894        if(--mgr->ref_count_rate == 0) {
 895                mgr->sample_rate = 0;
 896        }
 897
 898        /* delete pipe */
 899        if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
 900
 901                dev_err(chip->card->dev,
 902                        "error snd_mixart_kill_ref_pipe C%dP%d\n",
 903                        chip->chip_idx, stream->pcm_number);
 904        }
 905
 906        stream->pipe      = NULL;
 907        stream->status    = MIXART_STREAM_STATUS_FREE;
 908        stream->substream = NULL;
 909
 910        mutex_unlock(&mgr->setup_mutex);
 911        return 0;
 912}
 913
 914
 915static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
 916{
 917        struct snd_pcm_runtime *runtime = subs->runtime;
 918        struct mixart_stream   *stream  = runtime->private_data;
 919
 920        return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
 921}
 922
 923
 924
 925static struct snd_pcm_ops snd_mixart_playback_ops = {
 926        .open      = snd_mixart_playback_open,
 927        .close     = snd_mixart_close,
 928        .ioctl     = snd_pcm_lib_ioctl,
 929        .prepare   = snd_mixart_prepare,
 930        .hw_params = snd_mixart_hw_params,
 931        .hw_free   = snd_mixart_hw_free,
 932        .trigger   = snd_mixart_trigger,
 933        .pointer   = snd_mixart_stream_pointer,
 934};
 935
 936static struct snd_pcm_ops snd_mixart_capture_ops = {
 937        .open      = snd_mixart_capture_open,
 938        .close     = snd_mixart_close,
 939        .ioctl     = snd_pcm_lib_ioctl,
 940        .prepare   = snd_mixart_prepare,
 941        .hw_params = snd_mixart_hw_params,
 942        .hw_free   = snd_mixart_hw_free,
 943        .trigger   = snd_mixart_trigger,
 944        .pointer   = snd_mixart_stream_pointer,
 945};
 946
 947static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
 948{
 949#if 0
 950        struct snd_pcm_substream *subs;
 951        int stream;
 952
 953        for (stream = 0; stream < 2; stream++) {
 954                int idx = 0;
 955                for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
 956                        /* set up the unique device id with the chip index */
 957                        subs->dma_device.id = subs->pcm->device << 16 |
 958                                subs->stream << 8 | (subs->number + 1) |
 959                                (chip->chip_idx + 1) << 24;
 960        }
 961#endif
 962        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 963                                              snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024);
 964}
 965
 966/*
 967 */
 968static int snd_mixart_pcm_analog(struct snd_mixart *chip)
 969{
 970        int err;
 971        struct snd_pcm *pcm;
 972        char name[32];
 973
 974        sprintf(name, "miXart analog %d", chip->chip_idx);
 975        if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
 976                               MIXART_PLAYBACK_STREAMS,
 977                               MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
 978                dev_err(chip->card->dev,
 979                        "cannot create the analog pcm %d\n", chip->chip_idx);
 980                return err;
 981        }
 982
 983        pcm->private_data = chip;
 984
 985        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
 986        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
 987
 988        pcm->info_flags = 0;
 989        pcm->nonatomic = true;
 990        strcpy(pcm->name, name);
 991
 992        preallocate_buffers(chip, pcm);
 993
 994        chip->pcm = pcm;
 995        return 0;
 996}
 997
 998
 999/*
1000 */
1001static int snd_mixart_pcm_digital(struct snd_mixart *chip)
1002{
1003        int err;
1004        struct snd_pcm *pcm;
1005        char name[32];
1006
1007        sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
1008        if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
1009                               MIXART_PLAYBACK_STREAMS,
1010                               MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
1011                dev_err(chip->card->dev,
1012                        "cannot create the digital pcm %d\n", chip->chip_idx);
1013                return err;
1014        }
1015
1016        pcm->private_data = chip;
1017
1018        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
1019        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
1020
1021        pcm->info_flags = 0;
1022        pcm->nonatomic = true;
1023        strcpy(pcm->name, name);
1024
1025        preallocate_buffers(chip, pcm);
1026
1027        chip->pcm_dig = pcm;
1028        return 0;
1029}
1030
1031static int snd_mixart_chip_free(struct snd_mixart *chip)
1032{
1033        kfree(chip);
1034        return 0;
1035}
1036
1037static int snd_mixart_chip_dev_free(struct snd_device *device)
1038{
1039        struct snd_mixart *chip = device->device_data;
1040        return snd_mixart_chip_free(chip);
1041}
1042
1043
1044/*
1045 */
1046static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1047{
1048        int err;
1049        struct snd_mixart *chip;
1050        static struct snd_device_ops ops = {
1051                .dev_free = snd_mixart_chip_dev_free,
1052        };
1053
1054        chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1055        if (! chip) {
1056                dev_err(card->dev, "cannot allocate chip\n");
1057                return -ENOMEM;
1058        }
1059
1060        chip->card = card;
1061        chip->chip_idx = idx;
1062        chip->mgr = mgr;
1063
1064        if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1065                snd_mixart_chip_free(chip);
1066                return err;
1067        }
1068
1069        mgr->chip[idx] = chip;
1070        return 0;
1071}
1072
1073int snd_mixart_create_pcm(struct snd_mixart* chip)
1074{
1075        int err;
1076
1077        err = snd_mixart_pcm_analog(chip);
1078        if (err < 0)
1079                return err;
1080
1081        if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1082
1083                err = snd_mixart_pcm_digital(chip);
1084                if (err < 0)
1085                        return err;
1086        }
1087        return err;
1088}
1089
1090
1091/*
1092 * release all the cards assigned to a manager instance
1093 */
1094static int snd_mixart_free(struct mixart_mgr *mgr)
1095{
1096        unsigned int i;
1097
1098        for (i = 0; i < mgr->num_cards; i++) {
1099                if (mgr->chip[i])
1100                        snd_card_free(mgr->chip[i]->card);
1101        }
1102
1103        /* stop mailbox */
1104        snd_mixart_exit_mailbox(mgr);
1105
1106        /* release irq  */
1107        if (mgr->irq >= 0)
1108                free_irq(mgr->irq, mgr);
1109
1110        /* reset board if some firmware was loaded */
1111        if(mgr->dsp_loaded) {
1112                snd_mixart_reset_board(mgr);
1113                dev_dbg(&mgr->pci->dev, "reset miXart !\n");
1114        }
1115
1116        /* release the i/o ports */
1117        for (i = 0; i < 2; ++i)
1118                iounmap(mgr->mem[i].virt);
1119
1120        pci_release_regions(mgr->pci);
1121
1122        /* free flowarray */
1123        if(mgr->flowinfo.area) {
1124                snd_dma_free_pages(&mgr->flowinfo);
1125                mgr->flowinfo.area = NULL;
1126        }
1127        /* free bufferarray */
1128        if(mgr->bufferinfo.area) {
1129                snd_dma_free_pages(&mgr->bufferinfo);
1130                mgr->bufferinfo.area = NULL;
1131        }
1132
1133        pci_disable_device(mgr->pci);
1134        kfree(mgr);
1135        return 0;
1136}
1137
1138/*
1139 * proc interface
1140 */
1141
1142/*
1143  mixart_BA0 proc interface for BAR 0 - read callback
1144 */
1145static ssize_t snd_mixart_BA0_read(struct snd_info_entry *entry,
1146                                   void *file_private_data,
1147                                   struct file *file, char __user *buf,
1148                                   size_t count, loff_t pos)
1149{
1150        struct mixart_mgr *mgr = entry->private_data;
1151
1152        count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1153        if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count))
1154                return -EFAULT;
1155        return count;
1156}
1157
1158/*
1159  mixart_BA1 proc interface for BAR 1 - read callback
1160 */
1161static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry,
1162                                   void *file_private_data,
1163                                   struct file *file, char __user *buf,
1164                                   size_t count, loff_t pos)
1165{
1166        struct mixart_mgr *mgr = entry->private_data;
1167
1168        count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1169        if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count))
1170                return -EFAULT;
1171        return count;
1172}
1173
1174static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1175        .read   = snd_mixart_BA0_read,
1176};
1177
1178static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1179        .read   = snd_mixart_BA1_read,
1180};
1181
1182
1183static void snd_mixart_proc_read(struct snd_info_entry *entry, 
1184                                 struct snd_info_buffer *buffer)
1185{
1186        struct snd_mixart *chip = entry->private_data;        
1187        u32 ref; 
1188
1189        snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1190
1191        /* stats available when embedded OS is running */
1192        if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1193                snd_iprintf(buffer, "- hardware -\n");
1194                switch (chip->mgr->board_type ) {
1195                case MIXART_DAUGHTER_TYPE_NONE     : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1196                case MIXART_DAUGHTER_TYPE_AES      : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1197                case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1198                default:                             snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1199                }
1200
1201                snd_iprintf(buffer, "- system load -\n");        
1202
1203                /* get perf reference */
1204
1205                ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1206
1207                if (ref) {
1208                        u32 mailbox   = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1209                        u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1210                        u32 interr    = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1211
1212                        snd_iprintf(buffer, "\tstreaming          : %d\n", streaming);
1213                        snd_iprintf(buffer, "\tmailbox            : %d\n", mailbox);
1214                        snd_iprintf(buffer, "\tinterrupts handling : %d\n\n", interr);
1215                }
1216        } /* endif elf loaded */
1217}
1218
1219static void snd_mixart_proc_init(struct snd_mixart *chip)
1220{
1221        struct snd_info_entry *entry;
1222
1223        /* text interface to read perf and temp meters */
1224        if (! snd_card_proc_new(chip->card, "board_info", &entry)) {
1225                entry->private_data = chip;
1226                entry->c.text.read = snd_mixart_proc_read;
1227        }
1228
1229        if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1230                entry->content = SNDRV_INFO_CONTENT_DATA;
1231                entry->private_data = chip->mgr;        
1232                entry->c.ops = &snd_mixart_proc_ops_BA0;
1233                entry->size = MIXART_BA0_SIZE;
1234        }
1235        if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1236                entry->content = SNDRV_INFO_CONTENT_DATA;
1237                entry->private_data = chip->mgr;
1238                entry->c.ops = &snd_mixart_proc_ops_BA1;
1239                entry->size = MIXART_BA1_SIZE;
1240        }
1241}
1242/* end of proc interface */
1243
1244
1245/*
1246 *    probe function - creates the card manager
1247 */
1248static int snd_mixart_probe(struct pci_dev *pci,
1249                            const struct pci_device_id *pci_id)
1250{
1251        static int dev;
1252        struct mixart_mgr *mgr;
1253        unsigned int i;
1254        int err;
1255        size_t size;
1256
1257        /*
1258         */
1259        if (dev >= SNDRV_CARDS)
1260                return -ENODEV;
1261        if (! enable[dev]) {
1262                dev++;
1263                return -ENOENT;
1264        }
1265
1266        /* enable PCI device */
1267        if ((err = pci_enable_device(pci)) < 0)
1268                return err;
1269        pci_set_master(pci);
1270
1271        /* check if we can restrict PCI DMA transfers to 32 bits */
1272        if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1273                dev_err(&pci->dev,
1274                        "architecture does not support 32bit PCI busmaster DMA\n");
1275                pci_disable_device(pci);
1276                return -ENXIO;
1277        }
1278
1279        /*
1280         */
1281        mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1282        if (! mgr) {
1283                pci_disable_device(pci);
1284                return -ENOMEM;
1285        }
1286
1287        mgr->pci = pci;
1288        mgr->irq = -1;
1289
1290        /* resource assignment */
1291        if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
1292                kfree(mgr);
1293                pci_disable_device(pci);
1294                return err;
1295        }
1296        for (i = 0; i < 2; i++) {
1297                mgr->mem[i].phys = pci_resource_start(pci, i);
1298                mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1299                if (!mgr->mem[i].virt) {
1300                        dev_err(&pci->dev, "unable to remap resource 0x%lx\n",
1301                               mgr->mem[i].phys);
1302                        snd_mixart_free(mgr);
1303                        return -EBUSY;
1304                }
1305        }
1306
1307        if (request_threaded_irq(pci->irq, snd_mixart_interrupt,
1308                                 snd_mixart_threaded_irq, IRQF_SHARED,
1309                                 KBUILD_MODNAME, mgr)) {
1310                dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
1311                snd_mixart_free(mgr);
1312                return -EBUSY;
1313        }
1314        mgr->irq = pci->irq;
1315
1316        sprintf(mgr->shortname, "Digigram miXart");
1317        sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq);
1318
1319        /* init mailbox  */
1320        mgr->msg_fifo_readptr = 0;
1321        mgr->msg_fifo_writeptr = 0;
1322
1323        mutex_init(&mgr->lock);
1324        mutex_init(&mgr->msg_lock);
1325        init_waitqueue_head(&mgr->msg_sleep);
1326        atomic_set(&mgr->msg_processed, 0);
1327
1328        /* init setup mutex*/
1329        mutex_init(&mgr->setup_mutex);
1330
1331        /* card assignment */
1332        mgr->num_cards = MIXART_MAX_CARDS; /* 4  FIXME: configurable? */
1333        for (i = 0; i < mgr->num_cards; i++) {
1334                struct snd_card *card;
1335                char tmpid[16];
1336                int idx;
1337
1338                if (index[dev] < 0)
1339                        idx = index[dev];
1340                else
1341                        idx = index[dev] + i;
1342                snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1343                err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
1344                                   0, &card);
1345
1346                if (err < 0) {
1347                        dev_err(&pci->dev, "cannot allocate the card %d\n", i);
1348                        snd_mixart_free(mgr);
1349                        return err;
1350                }
1351
1352                strcpy(card->driver, CARD_NAME);
1353                sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1354                sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1355
1356                if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1357                        snd_card_free(card);
1358                        snd_mixart_free(mgr);
1359                        return err;
1360                }
1361
1362                if(i==0) {
1363                        /* init proc interface only for chip0 */
1364                        snd_mixart_proc_init(mgr->chip[i]);
1365                }
1366
1367                if ((err = snd_card_register(card)) < 0) {
1368                        snd_mixart_free(mgr);
1369                        return err;
1370                }
1371        }
1372
1373        /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1374        mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1375
1376        /* create array of streaminfo */
1377        size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1378                            sizeof(struct mixart_flowinfo)) );
1379        if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1380                                size, &mgr->flowinfo) < 0) {
1381                snd_mixart_free(mgr);
1382                return -ENOMEM;
1383        }
1384        /* init streaminfo_array */
1385        memset(mgr->flowinfo.area, 0, size);
1386
1387        /* create array of bufferinfo */
1388        size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1389                            sizeof(struct mixart_bufferinfo)) );
1390        if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1391                                size, &mgr->bufferinfo) < 0) {
1392                snd_mixart_free(mgr);
1393                return -ENOMEM;
1394        }
1395        /* init bufferinfo_array */
1396        memset(mgr->bufferinfo.area, 0, size);
1397
1398        /* set up firmware */
1399        err = snd_mixart_setup_firmware(mgr);
1400        if (err < 0) {
1401                snd_mixart_free(mgr);
1402                return err;
1403        }
1404
1405        pci_set_drvdata(pci, mgr);
1406        dev++;
1407        return 0;
1408}
1409
1410static void snd_mixart_remove(struct pci_dev *pci)
1411{
1412        snd_mixart_free(pci_get_drvdata(pci));
1413}
1414
1415static struct pci_driver mixart_driver = {
1416        .name = KBUILD_MODNAME,
1417        .id_table = snd_mixart_ids,
1418        .probe = snd_mixart_probe,
1419        .remove = snd_mixart_remove,
1420};
1421
1422module_pci_driver(mixart_driver);
1423