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spi-topcliff-pch: add recovery processing in case wait-event timeout
[zen-stable.git] / sound / pci / mixart / mixart.c
blob487837c01c9ff3ae206e30cbd804e02c5de1725e
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
45 MODULE_AUTHOR("Digigram <alsa@digigram.com>");
46 MODULE_DESCRIPTION("Digigram " CARD_NAME);
47 MODULE_LICENSE("GPL");
48 MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
49
50 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
51 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
52 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
53
54 module_param_array(index, int, NULL, 0444);
55 MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
56 module_param_array(id, charp, NULL, 0444);
57 MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
58 module_param_array(enable, bool, NULL, 0444);
59 MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
60
61 /*
62 */
63
64 static DEFINE_PCI_DEVICE_TABLE(snd_mixart_ids) = {
65 { PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */
66 { 0, }
67 };
68
69 MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
70
71
72 static 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 snd_printk(KERN_ERR "error mixart_set_pipe_state called with wrong pipe->status!\n");
91 return -EINVAL; /* function called with wrong pipe status */
92 }
93
94 system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
95
96 /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
97
98 request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
99 request.uid = (struct mixart_uid){0,0};
100 request.data = &system_msg_uid;
101 request.size = sizeof(system_msg_uid);
102
103 err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
104 if(err) {
105 snd_printk(KERN_ERR "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
106 return err;
107 }
108
109 /* start or stop the pipe (1 pipe) */
110
111 memset(&group_state, 0, sizeof(group_state));
112 group_state.pipe_count = 1;
113 group_state.pipe_uid[0] = pipe->group_uid;
114
115 if(start)
116 request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
117 else
118 request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
119
120 request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
121 request.data = &group_state;
122 request.size = sizeof(group_state);
123
124 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
125 if (err < 0 || group_state_resp.txx_status != 0) {
126 snd_printk(KERN_ERR "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status);
127 return -EINVAL;
128 }
129
130 if(start) {
131 u32 stat;
132
133 group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
134
135 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
136 if (err < 0 || group_state_resp.txx_status != 0) {
137 snd_printk(KERN_ERR "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status);
138 return -EINVAL;
139 }
140
141 /* in case of start send a synchro top */
142
143 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
144 request.uid = (struct mixart_uid){0,0};
145 request.data = NULL;
146 request.size = 0;
147
148 err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
149 if (err < 0 || stat != 0) {
150 snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n", err, stat);
151 return -EINVAL;
152 }
153
154 pipe->status = PIPE_RUNNING;
155 }
156 else /* !start */
157 pipe->status = PIPE_STOPPED;
158
159 return 0;
160 }
161
162
163 static int mixart_set_clock(struct mixart_mgr *mgr,
164 struct mixart_pipe *pipe, unsigned int rate)
165 {
166 struct mixart_msg request;
167 struct mixart_clock_properties clock_properties;
168 struct mixart_clock_properties_resp clock_prop_resp;
169 int err;
170
171 switch(pipe->status) {
172 case PIPE_CLOCK_SET:
173 break;
174 case PIPE_RUNNING:
175 if(rate != 0)
176 break;
177 default:
178 if(rate == 0)
179 return 0; /* nothing to do */
180 else {
181 snd_printk(KERN_ERR "error mixart_set_clock(%d) called with wrong pipe->status !\n", rate);
182 return -EINVAL;
183 }
184 }
185
186 memset(&clock_properties, 0, sizeof(clock_properties));
187 clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
188 clock_properties.clock_mode = CM_STANDALONE;
189 clock_properties.frequency = rate;
190 clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
191 clock_properties.uid_caller[0] = pipe->group_uid;
192
193 snd_printdd("mixart_set_clock to %d kHz\n", rate);
194
195 request.message_id = MSG_CLOCK_SET_PROPERTIES;
196 request.uid = mgr->uid_console_manager;
197 request.data = &clock_properties;
198 request.size = sizeof(clock_properties);
199
200 err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
201 if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
202 snd_printk(KERN_ERR "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n", 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 snd_printdd("add_ref_pipe audio chip(%d) pcm(%d)\n", chip->chip_idx, pcm_number);
256
257 buf = kmalloc(sizeof(*buf), GFP_KERNEL);
258 if (!buf)
259 return NULL;
260
261 request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */
262 request.data = &buf->sgroup_req;
263 request.size = sizeof(buf->sgroup_req);
264
265 memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
266
267 buf->sgroup_req.stream_count = stream_count;
268 buf->sgroup_req.channel_count = 2;
269 buf->sgroup_req.latency = 256;
270 buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */
271
272 for (i=0; i<stream_count; i++) {
273 int j;
274 struct mixart_flowinfo *flowinfo;
275 struct mixart_bufferinfo *bufferinfo;
276
277 /* we don't yet know the format, so config 16 bit pcm audio for instance */
278 buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
279 buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
280 buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
281
282 /* find the right bufferinfo_array */
283 j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
284 if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
285
286 buf->sgroup_req.flow_entry[i] = j;
287
288 flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
289 flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
290 flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */
291
292 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
293 bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */
294 bufferinfo[j].available_length = 0; /* buffer is not yet allocated */
295
296 /* construct the identifier of the stream buffer received in the interrupts ! */
297 bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
298 if(capture) {
299 bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
300 }
301 }
302
303 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
304 if((err < 0) || (buf->sgroup_resp.status != 0)) {
305 snd_printk(KERN_ERR "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n", err, buf->sgroup_resp.status);
306 kfree(buf);
307 return NULL;
308 }
309
310 pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */
311 pipe->stream_count = buf->sgroup_resp.stream_count;
312 /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
313
314 pipe->status = PIPE_STOPPED;
315 kfree(buf);
316 }
317
318 if(monitoring) pipe->monitoring = 1;
319 else pipe->references++;
320
321 return pipe;
322 }
323
324
325 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
326 struct mixart_pipe *pipe, int monitoring)
327 {
328 int err = 0;
329
330 if(pipe->status == PIPE_UNDEFINED)
331 return 0;
332
333 if(monitoring)
334 pipe->monitoring = 0;
335 else
336 pipe->references--;
337
338 if((pipe->references <= 0) && (pipe->monitoring == 0)) {
339
340 struct mixart_msg request;
341 struct mixart_delete_group_resp delete_resp;
342
343 /* release the clock */
344 err = mixart_set_clock( mgr, pipe, 0);
345 if( err < 0 ) {
346 snd_printk(KERN_ERR "mixart_set_clock(0) return error!\n");
347 }
348
349 /* stop the pipe */
350 err = mixart_set_pipe_state(mgr, pipe, 0);
351 if( err < 0 ) {
352 snd_printk(KERN_ERR "error stopping pipe!\n");
353 }
354
355 request.message_id = MSG_STREAM_DELETE_GROUP;
356 request.uid = (struct mixart_uid){0,0};
357 request.data = &pipe->group_uid; /* the streaming group ! */
358 request.size = sizeof(pipe->group_uid);
359
360 /* delete the pipe */
361 err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
362 if ((err < 0) || (delete_resp.status != 0)) {
363 snd_printk(KERN_ERR "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n", err, delete_resp.status);
364 }
365
366 pipe->group_uid = (struct mixart_uid){0,0};
367 pipe->stream_count = 0;
368 pipe->status = PIPE_UNDEFINED;
369 }
370
371 return err;
372 }
373
374 static int mixart_set_stream_state(struct mixart_stream *stream, int start)
375 {
376 struct snd_mixart *chip;
377 struct mixart_stream_state_req stream_state_req;
378 struct mixart_msg request;
379
380 if(!stream->substream)
381 return -EINVAL;
382
383 memset(&stream_state_req, 0, sizeof(stream_state_req));
384 stream_state_req.stream_count = 1;
385 stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
386 stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
387
388 if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
389 request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
390 else
391 request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
392
393 request.uid = (struct mixart_uid){0,0};
394 request.data = &stream_state_req;
395 request.size = sizeof(stream_state_req);
396
397 stream->abs_period_elapsed = 0; /* reset stream pos */
398 stream->buf_periods = 0;
399 stream->buf_period_frag = 0;
400
401 chip = snd_pcm_substream_chip(stream->substream);
402
403 return snd_mixart_send_msg_nonblock(chip->mgr, &request);
404 }
405
406 /*
407 * Trigger callback
408 */
409
410 static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
411 {
412 struct mixart_stream *stream = subs->runtime->private_data;
413
414 switch (cmd) {
415 case SNDRV_PCM_TRIGGER_START:
416
417 snd_printdd("SNDRV_PCM_TRIGGER_START\n");
418
419 /* START_STREAM */
420 if( mixart_set_stream_state(stream, 1) )
421 return -EINVAL;
422
423 stream->status = MIXART_STREAM_STATUS_RUNNING;
424
425 break;
426 case SNDRV_PCM_TRIGGER_STOP:
427
428 /* STOP_STREAM */
429 if( mixart_set_stream_state(stream, 0) )
430 return -EINVAL;
431
432 stream->status = MIXART_STREAM_STATUS_OPEN;
433
434 snd_printdd("SNDRV_PCM_TRIGGER_STOP\n");
435
436 break;
437
438 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
439 /* TODO */
440 stream->status = MIXART_STREAM_STATUS_PAUSE;
441 snd_printdd("SNDRV_PCM_PAUSE_PUSH\n");
442 break;
443 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
444 /* TODO */
445 stream->status = MIXART_STREAM_STATUS_RUNNING;
446 snd_printdd("SNDRV_PCM_PAUSE_RELEASE\n");
447 break;
448 default:
449 return -EINVAL;
450 }
451 return 0;
452 }
453
454 static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
455 {
456 unsigned long timeout = jiffies + HZ;
457 while (atomic_read(&mgr->msg_processed) > 0) {
458 if (time_after(jiffies, timeout)) {
459 snd_printk(KERN_ERR "mixart: cannot process nonblock events!\n");
460 return -EBUSY;
461 }
462 schedule_timeout_uninterruptible(1);
463 }
464 return 0;
465 }
466
467 /*
468 * prepare callback for all pcms
469 */
470 static int snd_mixart_prepare(struct snd_pcm_substream *subs)
471 {
472 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
473 struct mixart_stream *stream = subs->runtime->private_data;
474
475 /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
476
477 snd_printdd("snd_mixart_prepare\n");
478
479 mixart_sync_nonblock_events(chip->mgr);
480
481 /* only the first stream can choose the sample rate */
482 /* the further opened streams will be limited to its frequency (see open) */
483 if(chip->mgr->ref_count_rate == 1)
484 chip->mgr->sample_rate = subs->runtime->rate;
485
486 /* set the clock only once (first stream) on the same pipe */
487 if(stream->pipe->references == 1) {
488 if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
489 return -EINVAL;
490 }
491
492 return 0;
493 }
494
495
496 static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
497 {
498 int err;
499 struct snd_mixart *chip;
500 struct mixart_msg request;
501 struct mixart_stream_param_desc stream_param;
502 struct mixart_return_uid resp;
503
504 chip = snd_pcm_substream_chip(stream->substream);
505
506 memset(&stream_param, 0, sizeof(stream_param));
507
508 stream_param.coding_type = CT_LINEAR;
509 stream_param.number_of_channel = stream->channels;
510
511 stream_param.sampling_freq = chip->mgr->sample_rate;
512 if(stream_param.sampling_freq == 0)
513 stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
514
515 switch(format){
516 case SNDRV_PCM_FORMAT_U8:
517 stream_param.sample_type = ST_INTEGER_8;
518 stream_param.sample_size = 8;
519 break;
520 case SNDRV_PCM_FORMAT_S16_LE:
521 stream_param.sample_type = ST_INTEGER_16LE;
522 stream_param.sample_size = 16;
523 break;
524 case SNDRV_PCM_FORMAT_S16_BE:
525 stream_param.sample_type = ST_INTEGER_16BE;
526 stream_param.sample_size = 16;
527 break;
528 case SNDRV_PCM_FORMAT_S24_3LE:
529 stream_param.sample_type = ST_INTEGER_24LE;
530 stream_param.sample_size = 24;
531 break;
532 case SNDRV_PCM_FORMAT_S24_3BE:
533 stream_param.sample_type = ST_INTEGER_24BE;
534 stream_param.sample_size = 24;
535 break;
536 case SNDRV_PCM_FORMAT_FLOAT_LE:
537 stream_param.sample_type = ST_FLOATING_POINT_32LE;
538 stream_param.sample_size = 32;
539 break;
540 case SNDRV_PCM_FORMAT_FLOAT_BE:
541 stream_param.sample_type = ST_FLOATING_POINT_32BE;
542 stream_param.sample_size = 32;
543 break;
544 default:
545 snd_printk(KERN_ERR "error mixart_set_format() : unknown format\n");
546 return -EINVAL;
547 }
548
549 snd_printdd("set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
550 stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
551
552 /* TODO: what else to configure ? */
553 /* stream_param.samples_per_frame = 2; */
554 /* stream_param.bytes_per_frame = 4; */
555 /* stream_param.bytes_per_sample = 2; */
556
557 stream_param.pipe_count = 1; /* set to 1 */
558 stream_param.stream_count = 1; /* set to 1 */
559 stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
560 stream_param.stream_desc[0].stream_idx = stream->substream->number;
561
562 request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
563 request.uid = (struct mixart_uid){0,0};
564 request.data = &stream_param;
565 request.size = sizeof(stream_param);
566
567 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
568 if((err < 0) || resp.error_code) {
569 snd_printk(KERN_ERR "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n", err, resp.error_code);
570 return -EINVAL;
571 }
572 return 0;
573 }
574
575
576 /*
577 * HW_PARAMS callback for all pcms
578 */
579 static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
580 struct snd_pcm_hw_params *hw)
581 {
582 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
583 struct mixart_mgr *mgr = chip->mgr;
584 struct mixart_stream *stream = subs->runtime->private_data;
585 snd_pcm_format_t format;
586 int err;
587 int channels;
588
589 /* set up channels */
590 channels = params_channels(hw);
591
592 /* set up format for the stream */
593 format = params_format(hw);
594
595 mutex_lock(&mgr->setup_mutex);
596
597 /* update the stream levels */
598 if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
599 int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
600 if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
601 mixart_update_playback_stream_level(chip, is_aes, subs->number);
602 else
603 mixart_update_capture_stream_level( chip, is_aes);
604 }
605
606 stream->channels = channels;
607
608 /* set the format to the board */
609 err = mixart_set_format(stream, format);
610 if(err < 0) {
611 mutex_unlock(&mgr->setup_mutex);
612 return err;
613 }
614
615 /* allocate buffer */
616 err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
617
618 if (err > 0) {
619 struct mixart_bufferinfo *bufferinfo;
620 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
621 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
622 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
623 }
624
625 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
626 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
627 bufferinfo[i].available_length = subs->runtime->dma_bytes;
628 /* bufferinfo[i].buffer_id is already defined */
629
630 snd_printdd("snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n", i,
631 bufferinfo[i].buffer_address,
632 bufferinfo[i].available_length,
633 subs->number);
634 }
635 mutex_unlock(&mgr->setup_mutex);
636
637 return err;
638 }
639
640 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
641 {
642 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
643 snd_pcm_lib_free_pages(subs);
644 mixart_sync_nonblock_events(chip->mgr);
645 return 0;
646 }
647
648
649
650 /*
651 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
652 */
653 static struct snd_pcm_hardware snd_mixart_analog_caps =
654 {
655 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
656 SNDRV_PCM_INFO_MMAP_VALID |
657 SNDRV_PCM_INFO_PAUSE),
658 .formats = ( SNDRV_PCM_FMTBIT_U8 |
659 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
660 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
661 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
662 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
663 .rate_min = 8000,
664 .rate_max = 48000,
665 .channels_min = 1,
666 .channels_max = 2,
667 .buffer_bytes_max = (32*1024),
668 .period_bytes_min = 256, /* 256 frames U8 mono*/
669 .period_bytes_max = (16*1024),
670 .periods_min = 2,
671 .periods_max = (32*1024/256),
672 };
673
674 static struct snd_pcm_hardware snd_mixart_digital_caps =
675 {
676 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
677 SNDRV_PCM_INFO_MMAP_VALID |
678 SNDRV_PCM_INFO_PAUSE),
679 .formats = ( SNDRV_PCM_FMTBIT_U8 |
680 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
681 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
682 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
683 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
684 .rate_min = 32000,
685 .rate_max = 48000,
686 .channels_min = 1,
687 .channels_max = 2,
688 .buffer_bytes_max = (32*1024),
689 .period_bytes_min = 256, /* 256 frames U8 mono*/
690 .period_bytes_max = (16*1024),
691 .periods_min = 2,
692 .periods_max = (32*1024/256),
693 };
694
695
696 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
697 {
698 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
699 struct mixart_mgr *mgr = chip->mgr;
700 struct snd_pcm_runtime *runtime = subs->runtime;
701 struct snd_pcm *pcm = subs->pcm;
702 struct mixart_stream *stream;
703 struct mixart_pipe *pipe;
704 int err = 0;
705 int pcm_number;
706
707 mutex_lock(&mgr->setup_mutex);
708
709 if ( pcm == chip->pcm ) {
710 pcm_number = MIXART_PCM_ANALOG;
711 runtime->hw = snd_mixart_analog_caps;
712 } else {
713 snd_BUG_ON(pcm != chip->pcm_dig);
714 pcm_number = MIXART_PCM_DIGITAL;
715 runtime->hw = snd_mixart_digital_caps;
716 }
717 snd_printdd("snd_mixart_playback_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
718
719 /* get stream info */
720 stream = &(chip->playback_stream[pcm_number][subs->number]);
721
722 if (stream->status != MIXART_STREAM_STATUS_FREE){
723 /* streams in use */
724 snd_printk(KERN_ERR "snd_mixart_playback_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
725 err = -EBUSY;
726 goto _exit_open;
727 }
728
729 /* get pipe pointer (out pipe) */
730 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
731
732 if (pipe == NULL) {
733 err = -EINVAL;
734 goto _exit_open;
735 }
736
737 /* start the pipe if necessary */
738 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
739 if( err < 0 ) {
740 snd_printk(KERN_ERR "error starting pipe!\n");
741 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
742 err = -EINVAL;
743 goto _exit_open;
744 }
745
746 stream->pipe = pipe;
747 stream->pcm_number = pcm_number;
748 stream->status = MIXART_STREAM_STATUS_OPEN;
749 stream->substream = subs;
750 stream->channels = 0; /* not configured yet */
751
752 runtime->private_data = stream;
753
754 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
755 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
756
757 /* if a sample rate is already used, another stream cannot change */
758 if(mgr->ref_count_rate++) {
759 if(mgr->sample_rate) {
760 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
761 }
762 }
763
764 _exit_open:
765 mutex_unlock(&mgr->setup_mutex);
766
767 return err;
768 }
769
770
771 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
772 {
773 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
774 struct mixart_mgr *mgr = chip->mgr;
775 struct snd_pcm_runtime *runtime = subs->runtime;
776 struct snd_pcm *pcm = subs->pcm;
777 struct mixart_stream *stream;
778 struct mixart_pipe *pipe;
779 int err = 0;
780 int pcm_number;
781
782 mutex_lock(&mgr->setup_mutex);
783
784 if ( pcm == chip->pcm ) {
785 pcm_number = MIXART_PCM_ANALOG;
786 runtime->hw = snd_mixart_analog_caps;
787 } else {
788 snd_BUG_ON(pcm != chip->pcm_dig);
789 pcm_number = MIXART_PCM_DIGITAL;
790 runtime->hw = snd_mixart_digital_caps;
791 }
792
793 runtime->hw.channels_min = 2; /* for instance, no mono */
794
795 snd_printdd("snd_mixart_capture_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
796
797 /* get stream info */
798 stream = &(chip->capture_stream[pcm_number]);
799
800 if (stream->status != MIXART_STREAM_STATUS_FREE){
801 /* streams in use */
802 snd_printk(KERN_ERR "snd_mixart_capture_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
803 err = -EBUSY;
804 goto _exit_open;
805 }
806
807 /* get pipe pointer (in pipe) */
808 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
809
810 if (pipe == NULL) {
811 err = -EINVAL;
812 goto _exit_open;
813 }
814
815 /* start the pipe if necessary */
816 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
817 if( err < 0 ) {
818 snd_printk(KERN_ERR "error starting pipe!\n");
819 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
820 err = -EINVAL;
821 goto _exit_open;
822 }
823
824 stream->pipe = pipe;
825 stream->pcm_number = pcm_number;
826 stream->status = MIXART_STREAM_STATUS_OPEN;
827 stream->substream = subs;
828 stream->channels = 0; /* not configured yet */
829
830 runtime->private_data = stream;
831
832 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
833 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
834
835 /* if a sample rate is already used, another stream cannot change */
836 if(mgr->ref_count_rate++) {
837 if(mgr->sample_rate) {
838 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
839 }
840 }
841
842 _exit_open:
843 mutex_unlock(&mgr->setup_mutex);
844
845 return err;
846 }
847
848
849
850 static int snd_mixart_close(struct snd_pcm_substream *subs)
851 {
852 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
853 struct mixart_mgr *mgr = chip->mgr;
854 struct mixart_stream *stream = subs->runtime->private_data;
855
856 mutex_lock(&mgr->setup_mutex);
857
858 snd_printdd("snd_mixart_close C%d/P%d/Sub%d\n", chip->chip_idx, stream->pcm_number, subs->number);
859
860 /* sample rate released */
861 if(--mgr->ref_count_rate == 0) {
862 mgr->sample_rate = 0;
863 }
864
865 /* delete pipe */
866 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
867
868 snd_printk(KERN_ERR "error snd_mixart_kill_ref_pipe C%dP%d\n", chip->chip_idx, stream->pcm_number);
869 }
870
871 stream->pipe = NULL;
872 stream->status = MIXART_STREAM_STATUS_FREE;
873 stream->substream = NULL;
874
875 mutex_unlock(&mgr->setup_mutex);
876 return 0;
877 }
878
879
880 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
881 {
882 struct snd_pcm_runtime *runtime = subs->runtime;
883 struct mixart_stream *stream = runtime->private_data;
884
885 return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
886 }
887
888
889
890 static struct snd_pcm_ops snd_mixart_playback_ops = {
891 .open = snd_mixart_playback_open,
892 .close = snd_mixart_close,
893 .ioctl = snd_pcm_lib_ioctl,
894 .prepare = snd_mixart_prepare,
895 .hw_params = snd_mixart_hw_params,
896 .hw_free = snd_mixart_hw_free,
897 .trigger = snd_mixart_trigger,
898 .pointer = snd_mixart_stream_pointer,
899 };
900
901 static struct snd_pcm_ops snd_mixart_capture_ops = {
902 .open = snd_mixart_capture_open,
903 .close = snd_mixart_close,
904 .ioctl = snd_pcm_lib_ioctl,
905 .prepare = snd_mixart_prepare,
906 .hw_params = snd_mixart_hw_params,
907 .hw_free = snd_mixart_hw_free,
908 .trigger = snd_mixart_trigger,
909 .pointer = snd_mixart_stream_pointer,
910 };
911
912 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
913 {
914 #if 0
915 struct snd_pcm_substream *subs;
916 int stream;
917
918 for (stream = 0; stream < 2; stream++) {
919 int idx = 0;
920 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
921 /* set up the unique device id with the chip index */
922 subs->dma_device.id = subs->pcm->device << 16 |
923 subs->stream << 8 | (subs->number + 1) |
924 (chip->chip_idx + 1) << 24;
925 }
926 #endif
927 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
928 snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024);
929 }
930
931 /*
932 */
933 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
934 {
935 int err;
936 struct snd_pcm *pcm;
937 char name[32];
938
939 sprintf(name, "miXart analog %d", chip->chip_idx);
940 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
941 MIXART_PLAYBACK_STREAMS,
942 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
943 snd_printk(KERN_ERR "cannot create the analog pcm %d\n", chip->chip_idx);
944 return err;
945 }
946
947 pcm->private_data = chip;
948
949 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
950 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
951
952 pcm->info_flags = 0;
953 strcpy(pcm->name, name);
954
955 preallocate_buffers(chip, pcm);
956
957 chip->pcm = pcm;
958 return 0;
959 }
960
961
962 /*
963 */
964 static int snd_mixart_pcm_digital(struct snd_mixart *chip)
965 {
966 int err;
967 struct snd_pcm *pcm;
968 char name[32];
969
970 sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
971 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
972 MIXART_PLAYBACK_STREAMS,
973 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
974 snd_printk(KERN_ERR "cannot create the digital pcm %d\n", chip->chip_idx);
975 return err;
976 }
977
978 pcm->private_data = chip;
979
980 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
981 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
982
983 pcm->info_flags = 0;
984 strcpy(pcm->name, name);
985
986 preallocate_buffers(chip, pcm);
987
988 chip->pcm_dig = pcm;
989 return 0;
990 }
991
992 static int snd_mixart_chip_free(struct snd_mixart *chip)
993 {
994 kfree(chip);
995 return 0;
996 }
997
998 static int snd_mixart_chip_dev_free(struct snd_device *device)
999 {
1000 struct snd_mixart *chip = device->device_data;
1001 return snd_mixart_chip_free(chip);
1002 }
1003
1004
1005 /*
1006 */
1007 static int __devinit snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1008 {
1009 int err;
1010 struct snd_mixart *chip;
1011 static struct snd_device_ops ops = {
1012 .dev_free = snd_mixart_chip_dev_free,
1013 };
1014
1015 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1016 if (! chip) {
1017 snd_printk(KERN_ERR "cannot allocate chip\n");
1018 return -ENOMEM;
1019 }
1020
1021 chip->card = card;
1022 chip->chip_idx = idx;
1023 chip->mgr = mgr;
1024
1025 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1026 snd_mixart_chip_free(chip);
1027 return err;
1028 }
1029
1030 mgr->chip[idx] = chip;
1031 snd_card_set_dev(card, &mgr->pci->dev);
1032
1033 return 0;
1034 }
1035
1036 int snd_mixart_create_pcm(struct snd_mixart* chip)
1037 {
1038 int err;
1039
1040 err = snd_mixart_pcm_analog(chip);
1041 if (err < 0)
1042 return err;
1043
1044 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1045
1046 err = snd_mixart_pcm_digital(chip);
1047 if (err < 0)
1048 return err;
1049 }
1050 return err;
1051 }
1052
1053
1054 /*
1055 * release all the cards assigned to a manager instance
1056 */
1057 static int snd_mixart_free(struct mixart_mgr *mgr)
1058 {
1059 unsigned int i;
1060
1061 for (i = 0; i < mgr->num_cards; i++) {
1062 if (mgr->chip[i])
1063 snd_card_free(mgr->chip[i]->card);
1064 }
1065
1066 /* stop mailbox */
1067 snd_mixart_exit_mailbox(mgr);
1068
1069 /* release irq */
1070 if (mgr->irq >= 0)
1071 free_irq(mgr->irq, mgr);
1072
1073 /* reset board if some firmware was loaded */
1074 if(mgr->dsp_loaded) {
1075 snd_mixart_reset_board(mgr);
1076 snd_printdd("reset miXart !\n");
1077 }
1078
1079 /* release the i/o ports */
1080 for (i = 0; i < 2; i++) {
1081 if (mgr->mem[i].virt)
1082 iounmap(mgr->mem[i].virt);
1083 }
1084 pci_release_regions(mgr->pci);
1085
1086 /* free flowarray */
1087 if(mgr->flowinfo.area) {
1088 snd_dma_free_pages(&mgr->flowinfo);
1089 mgr->flowinfo.area = NULL;
1090 }
1091 /* free bufferarray */
1092 if(mgr->bufferinfo.area) {
1093 snd_dma_free_pages(&mgr->bufferinfo);
1094 mgr->bufferinfo.area = NULL;
1095 }
1096
1097 pci_disable_device(mgr->pci);
1098 kfree(mgr);
1099 return 0;
1100 }
1101
1102 /*
1103 * proc interface
1104 */
1105
1106 /*
1107 mixart_BA0 proc interface for BAR 0 - read callback
1108 */
1109 static ssize_t snd_mixart_BA0_read(struct snd_info_entry *entry,
1110 void *file_private_data,
1111 struct file *file, char __user *buf,
1112 size_t count, loff_t pos)
1113 {
1114 struct mixart_mgr *mgr = entry->private_data;
1115
1116 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1117 if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count))
1118 return -EFAULT;
1119 return count;
1120 }
1121
1122 /*
1123 mixart_BA1 proc interface for BAR 1 - read callback
1124 */
1125 static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry,
1126 void *file_private_data,
1127 struct file *file, char __user *buf,
1128 size_t count, loff_t pos)
1129 {
1130 struct mixart_mgr *mgr = entry->private_data;
1131
1132 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1133 if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count))
1134 return -EFAULT;
1135 return count;
1136 }
1137
1138 static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1139 .read = snd_mixart_BA0_read,
1140 };
1141
1142 static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1143 .read = snd_mixart_BA1_read,
1144 };
1145
1146
1147 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1148 struct snd_info_buffer *buffer)
1149 {
1150 struct snd_mixart *chip = entry->private_data;
1151 u32 ref;
1152
1153 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1154
1155 /* stats available when embedded OS is running */
1156 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1157 snd_iprintf(buffer, "- hardware -\n");
1158 switch (chip->mgr->board_type ) {
1159 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1160 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1161 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1162 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1163 }
1164
1165 snd_iprintf(buffer, "- system load -\n");
1166
1167 /* get perf reference */
1168
1169 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1170
1171 if (ref) {
1172 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1173 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1174 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1175
1176 snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
1177 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
1178 snd_iprintf(buffer, "\tinterrups handling : %d\n\n", interr);
1179 }
1180 } /* endif elf loaded */
1181 }
1182
1183 static void __devinit snd_mixart_proc_init(struct snd_mixart *chip)
1184 {
1185 struct snd_info_entry *entry;
1186
1187 /* text interface to read perf and temp meters */
1188 if (! snd_card_proc_new(chip->card, "board_info", &entry)) {
1189 entry->private_data = chip;
1190 entry->c.text.read = snd_mixart_proc_read;
1191 }
1192
1193 if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1194 entry->content = SNDRV_INFO_CONTENT_DATA;
1195 entry->private_data = chip->mgr;
1196 entry->c.ops = &snd_mixart_proc_ops_BA0;
1197 entry->size = MIXART_BA0_SIZE;
1198 }
1199 if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1200 entry->content = SNDRV_INFO_CONTENT_DATA;
1201 entry->private_data = chip->mgr;
1202 entry->c.ops = &snd_mixart_proc_ops_BA1;
1203 entry->size = MIXART_BA1_SIZE;
1204 }
1205 }
1206 /* end of proc interface */
1207
1208
1209 /*
1210 * probe function - creates the card manager
1211 */
1212 static int __devinit snd_mixart_probe(struct pci_dev *pci,
1213 const struct pci_device_id *pci_id)
1214 {
1215 static int dev;
1216 struct mixart_mgr *mgr;
1217 unsigned int i;
1218 int err;
1219 size_t size;
1220
1221 /*
1222 */
1223 if (dev >= SNDRV_CARDS)
1224 return -ENODEV;
1225 if (! enable[dev]) {
1226 dev++;
1227 return -ENOENT;
1228 }
1229
1230 /* enable PCI device */
1231 if ((err = pci_enable_device(pci)) < 0)
1232 return err;
1233 pci_set_master(pci);
1234
1235 /* check if we can restrict PCI DMA transfers to 32 bits */
1236 if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1237 snd_printk(KERN_ERR "architecture does not support 32bit PCI busmaster DMA\n");
1238 pci_disable_device(pci);
1239 return -ENXIO;
1240 }
1241
1242 /*
1243 */
1244 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1245 if (! mgr) {
1246 pci_disable_device(pci);
1247 return -ENOMEM;
1248 }
1249
1250 mgr->pci = pci;
1251 mgr->irq = -1;
1252
1253 /* resource assignment */
1254 if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
1255 kfree(mgr);
1256 pci_disable_device(pci);
1257 return err;
1258 }
1259 for (i = 0; i < 2; i++) {
1260 mgr->mem[i].phys = pci_resource_start(pci, i);
1261 mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1262 if (!mgr->mem[i].virt) {
1263 printk(KERN_ERR "unable to remap resource 0x%lx\n",
1264 mgr->mem[i].phys);
1265 snd_mixart_free(mgr);
1266 return -EBUSY;
1267 }
1268 }
1269
1270 if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED,
1271 KBUILD_MODNAME, mgr)) {
1272 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1273 snd_mixart_free(mgr);
1274 return -EBUSY;
1275 }
1276 mgr->irq = pci->irq;
1277
1278 sprintf(mgr->shortname, "Digigram miXart");
1279 sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq);
1280
1281 /* ISR spinlock */
1282 spin_lock_init(&mgr->lock);
1283
1284 /* init mailbox */
1285 mgr->msg_fifo_readptr = 0;
1286 mgr->msg_fifo_writeptr = 0;
1287
1288 spin_lock_init(&mgr->msg_lock);
1289 mutex_init(&mgr->msg_mutex);
1290 init_waitqueue_head(&mgr->msg_sleep);
1291 atomic_set(&mgr->msg_processed, 0);
1292
1293 /* init setup mutex*/
1294 mutex_init(&mgr->setup_mutex);
1295
1296 /* init message taslket */
1297 tasklet_init(&mgr->msg_taskq, snd_mixart_msg_tasklet, (unsigned long) mgr);
1298
1299 /* card assignment */
1300 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1301 for (i = 0; i < mgr->num_cards; i++) {
1302 struct snd_card *card;
1303 char tmpid[16];
1304 int idx;
1305
1306 if (index[dev] < 0)
1307 idx = index[dev];
1308 else
1309 idx = index[dev] + i;
1310 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1311 err = snd_card_create(idx, tmpid, THIS_MODULE, 0, &card);
1312
1313 if (err < 0) {
1314 snd_printk(KERN_ERR "cannot allocate the card %d\n", i);
1315 snd_mixart_free(mgr);
1316 return err;
1317 }
1318
1319 strcpy(card->driver, CARD_NAME);
1320 sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1321 sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1322
1323 if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1324 snd_card_free(card);
1325 snd_mixart_free(mgr);
1326 return err;
1327 }
1328
1329 if(i==0) {
1330 /* init proc interface only for chip0 */
1331 snd_mixart_proc_init(mgr->chip[i]);
1332 }
1333
1334 if ((err = snd_card_register(card)) < 0) {
1335 snd_mixart_free(mgr);
1336 return err;
1337 }
1338 }
1339
1340 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1341 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1342
1343 /* create array of streaminfo */
1344 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1345 sizeof(struct mixart_flowinfo)) );
1346 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1347 size, &mgr->flowinfo) < 0) {
1348 snd_mixart_free(mgr);
1349 return -ENOMEM;
1350 }
1351 /* init streaminfo_array */
1352 memset(mgr->flowinfo.area, 0, size);
1353
1354 /* create array of bufferinfo */
1355 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1356 sizeof(struct mixart_bufferinfo)) );
1357 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1358 size, &mgr->bufferinfo) < 0) {
1359 snd_mixart_free(mgr);
1360 return -ENOMEM;
1361 }
1362 /* init bufferinfo_array */
1363 memset(mgr->bufferinfo.area, 0, size);
1364
1365 /* set up firmware */
1366 err = snd_mixart_setup_firmware(mgr);
1367 if (err < 0) {
1368 snd_mixart_free(mgr);
1369 return err;
1370 }
1371
1372 pci_set_drvdata(pci, mgr);
1373 dev++;
1374 return 0;
1375 }
1376
1377 static void __devexit snd_mixart_remove(struct pci_dev *pci)
1378 {
1379 snd_mixart_free(pci_get_drvdata(pci));
1380 pci_set_drvdata(pci, NULL);
1381 }
1382
1383 static struct pci_driver driver = {
1384 .name = KBUILD_MODNAME,
1385 .id_table = snd_mixart_ids,
1386 .probe = snd_mixart_probe,
1387 .remove = __devexit_p(snd_mixart_remove),
1388 };
1389
1390 static int __init alsa_card_mixart_init(void)
1391 {
1392 return pci_register_driver(&driver);
1393 }
1394
1395 static void __exit alsa_card_mixart_exit(void)
1396 {
1397 pci_unregister_driver(&driver);
1398 }
1399
1400 module_init(alsa_card_mixart_init)
1401 module_exit(alsa_card_mixart_exit)