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[ALSA] semaphore -> mutex (PCI part)
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / pci / mixart / mixart.c
blobe79fb264532b6028b60ecc2f7d82b9e231554295
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 <sound/driver.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
27 #include <linux/pci.h>
28 #include <linux/moduleparam.h>
29 #include <linux/mutex.h>
30 #include <sound/core.h>
31 #include <sound/initval.h>
32 #include <sound/info.h>
33 #include <sound/control.h>
34 #include <sound/pcm.h>
35 #include <sound/pcm_params.h>
36 #include "mixart.h"
37 #include "mixart_hwdep.h"
38 #include "mixart_core.h"
39 #include "mixart_mixer.h"
40
41 #define CARD_NAME "miXart"
42
43 MODULE_AUTHOR("Digigram <alsa@digigram.com>");
44 MODULE_DESCRIPTION("Digigram " CARD_NAME);
45 MODULE_LICENSE("GPL");
46 MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
47
48 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
49 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
50 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
51
52 module_param_array(index, int, NULL, 0444);
53 MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
54 module_param_array(id, charp, NULL, 0444);
55 MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
56 module_param_array(enable, bool, NULL, 0444);
57 MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
58
59 /*
60 */
61
62 static struct pci_device_id snd_mixart_ids[] = {
63 { 0x1057, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* MC8240 */
64 { 0, }
65 };
66
67 MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
68
69
70 static int mixart_set_pipe_state(struct mixart_mgr *mgr,
71 struct mixart_pipe *pipe, int start)
72 {
73 struct mixart_group_state_req group_state;
74 struct mixart_group_state_resp group_state_resp;
75 struct mixart_msg request;
76 int err;
77 u32 system_msg_uid;
78
79 switch(pipe->status) {
80 case PIPE_RUNNING:
81 case PIPE_CLOCK_SET:
82 if(start) return 0; /* already started */
83 break;
84 case PIPE_STOPPED:
85 if(!start) return 0; /* already stopped */
86 break;
87 default:
88 snd_printk(KERN_ERR "error mixart_set_pipe_state called with wrong pipe->status!\n");
89 return -EINVAL; /* function called with wrong pipe status */
90 }
91
92 system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
93
94 /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
95
96 request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
97 request.uid = (struct mixart_uid){0,0};
98 request.data = &system_msg_uid;
99 request.size = sizeof(system_msg_uid);
100
101 err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
102 if(err) {
103 snd_printk(KERN_ERR "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
104 return err;
105 }
106
107 /* start or stop the pipe (1 pipe) */
108
109 memset(&group_state, 0, sizeof(group_state));
110 group_state.pipe_count = 1;
111 group_state.pipe_uid[0] = pipe->group_uid;
112
113 if(start)
114 request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
115 else
116 request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
117
118 request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
119 request.data = &group_state;
120 request.size = sizeof(group_state);
121
122 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
123 if (err < 0 || group_state_resp.txx_status != 0) {
124 snd_printk(KERN_ERR "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status);
125 return -EINVAL;
126 }
127
128 if(start) {
129 u32 stat;
130
131 group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
132
133 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
134 if (err < 0 || group_state_resp.txx_status != 0) {
135 snd_printk(KERN_ERR "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status);
136 return -EINVAL;
137 }
138
139 /* in case of start send a synchro top */
140
141 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
142 request.uid = (struct mixart_uid){0,0};
143 request.data = NULL;
144 request.size = 0;
145
146 err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
147 if (err < 0 || stat != 0) {
148 snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n", err, stat);
149 return -EINVAL;
150 }
151
152 pipe->status = PIPE_RUNNING;
153 }
154 else /* !start */
155 pipe->status = PIPE_STOPPED;
156
157 return 0;
158 }
159
160
161 static int mixart_set_clock(struct mixart_mgr *mgr,
162 struct mixart_pipe *pipe, unsigned int rate)
163 {
164 struct mixart_msg request;
165 struct mixart_clock_properties clock_properties;
166 struct mixart_clock_properties_resp clock_prop_resp;
167 int err;
168
169 switch(pipe->status) {
170 case PIPE_CLOCK_SET:
171 break;
172 case PIPE_RUNNING:
173 if(rate != 0)
174 break;
175 default:
176 if(rate == 0)
177 return 0; /* nothing to do */
178 else {
179 snd_printk(KERN_ERR "error mixart_set_clock(%d) called with wrong pipe->status !\n", rate);
180 return -EINVAL;
181 }
182 }
183
184 memset(&clock_properties, 0, sizeof(clock_properties));
185 clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
186 clock_properties.clock_mode = CM_STANDALONE;
187 clock_properties.frequency = rate;
188 clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
189 clock_properties.uid_caller[0] = pipe->group_uid;
190
191 snd_printdd("mixart_set_clock to %d kHz\n", rate);
192
193 request.message_id = MSG_CLOCK_SET_PROPERTIES;
194 request.uid = mgr->uid_console_manager;
195 request.data = &clock_properties;
196 request.size = sizeof(clock_properties);
197
198 err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
199 if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
200 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);
201 return -EINVAL;
202 }
203
204 if(rate) pipe->status = PIPE_CLOCK_SET;
205 else pipe->status = PIPE_RUNNING;
206
207 return 0;
208 }
209
210
211 /*
212 * Allocate or reference output pipe for analog IOs (pcmp0/1)
213 */
214 struct mixart_pipe *
215 snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
216 int monitoring)
217 {
218 int stream_count;
219 struct mixart_pipe *pipe;
220 struct mixart_msg request;
221
222 if(capture) {
223 if (pcm_number == MIXART_PCM_ANALOG) {
224 pipe = &(chip->pipe_in_ana); /* analog inputs */
225 } else {
226 pipe = &(chip->pipe_in_dig); /* digital inputs */
227 }
228 request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
229 stream_count = MIXART_CAPTURE_STREAMS;
230 } else {
231 if (pcm_number == MIXART_PCM_ANALOG) {
232 pipe = &(chip->pipe_out_ana); /* analog outputs */
233 } else {
234 pipe = &(chip->pipe_out_dig); /* digital outputs */
235 }
236 request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
237 stream_count = MIXART_PLAYBACK_STREAMS;
238 }
239
240 /* a new stream is opened and there are already all streams in use */
241 if( (monitoring == 0) && (pipe->references >= stream_count) ) {
242 return NULL;
243 }
244
245 /* pipe is not yet defined */
246 if( pipe->status == PIPE_UNDEFINED ) {
247 int err, i;
248 struct {
249 struct mixart_streaming_group_req sgroup_req;
250 struct mixart_streaming_group sgroup_resp;
251 } *buf;
252
253 snd_printdd("add_ref_pipe audio chip(%d) pcm(%d)\n", chip->chip_idx, pcm_number);
254
255 buf = kmalloc(sizeof(*buf), GFP_KERNEL);
256 if (!buf)
257 return NULL;
258
259 request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */
260 request.data = &buf->sgroup_req;
261 request.size = sizeof(buf->sgroup_req);
262
263 memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
264
265 buf->sgroup_req.stream_count = stream_count;
266 buf->sgroup_req.channel_count = 2;
267 buf->sgroup_req.latency = 256;
268 buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */
269
270 for (i=0; i<stream_count; i++) {
271 int j;
272 struct mixart_flowinfo *flowinfo;
273 struct mixart_bufferinfo *bufferinfo;
274
275 /* we don't yet know the format, so config 16 bit pcm audio for instance */
276 buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
277 buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
278 buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
279
280 /* find the right bufferinfo_array */
281 j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
282 if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
283
284 buf->sgroup_req.flow_entry[i] = j;
285
286 flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
287 flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
288 flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */
289
290 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
291 bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */
292 bufferinfo[j].available_length = 0; /* buffer is not yet allocated */
293
294 /* construct the identifier of the stream buffer received in the interrupts ! */
295 bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
296 if(capture) {
297 bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
298 }
299 }
300
301 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
302 if((err < 0) || (buf->sgroup_resp.status != 0)) {
303 snd_printk(KERN_ERR "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n", err, buf->sgroup_resp.status);
304 kfree(buf);
305 return NULL;
306 }
307
308 pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */
309 pipe->stream_count = buf->sgroup_resp.stream_count;
310 /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
311
312 pipe->status = PIPE_STOPPED;
313 kfree(buf);
314 }
315
316 if(monitoring) pipe->monitoring = 1;
317 else pipe->references++;
318
319 return pipe;
320 }
321
322
323 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
324 struct mixart_pipe *pipe, int monitoring)
325 {
326 int err = 0;
327
328 if(pipe->status == PIPE_UNDEFINED)
329 return 0;
330
331 if(monitoring)
332 pipe->monitoring = 0;
333 else
334 pipe->references--;
335
336 if((pipe->references <= 0) && (pipe->monitoring == 0)) {
337
338 struct mixart_msg request;
339 struct mixart_delete_group_resp delete_resp;
340
341 /* release the clock */
342 err = mixart_set_clock( mgr, pipe, 0);
343 if( err < 0 ) {
344 snd_printk(KERN_ERR "mixart_set_clock(0) return error!\n");
345 }
346
347 /* stop the pipe */
348 err = mixart_set_pipe_state(mgr, pipe, 0);
349 if( err < 0 ) {
350 snd_printk(KERN_ERR "error stopping pipe!\n");
351 }
352
353 request.message_id = MSG_STREAM_DELETE_GROUP;
354 request.uid = (struct mixart_uid){0,0};
355 request.data = &pipe->group_uid; /* the streaming group ! */
356 request.size = sizeof(pipe->group_uid);
357
358 /* delete the pipe */
359 err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
360 if ((err < 0) || (delete_resp.status != 0)) {
361 snd_printk(KERN_ERR "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n", err, delete_resp.status);
362 }
363
364 pipe->group_uid = (struct mixart_uid){0,0};
365 pipe->stream_count = 0;
366 pipe->status = PIPE_UNDEFINED;
367 }
368
369 return err;
370 }
371
372 static int mixart_set_stream_state(struct mixart_stream *stream, int start)
373 {
374 struct snd_mixart *chip;
375 struct mixart_stream_state_req stream_state_req;
376 struct mixart_msg request;
377
378 if(!stream->substream)
379 return -EINVAL;
380
381 memset(&stream_state_req, 0, sizeof(stream_state_req));
382 stream_state_req.stream_count = 1;
383 stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
384 stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
385
386 if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
387 request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
388 else
389 request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
390
391 request.uid = (struct mixart_uid){0,0};
392 request.data = &stream_state_req;
393 request.size = sizeof(stream_state_req);
394
395 stream->abs_period_elapsed = 0; /* reset stream pos */
396 stream->buf_periods = 0;
397 stream->buf_period_frag = 0;
398
399 chip = snd_pcm_substream_chip(stream->substream);
400
401 return snd_mixart_send_msg_nonblock(chip->mgr, &request);
402 }
403
404 /*
405 * Trigger callback
406 */
407
408 static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
409 {
410 struct mixart_stream *stream = subs->runtime->private_data;
411
412 switch (cmd) {
413 case SNDRV_PCM_TRIGGER_START:
414
415 snd_printdd("SNDRV_PCM_TRIGGER_START\n");
416
417 /* START_STREAM */
418 if( mixart_set_stream_state(stream, 1) )
419 return -EINVAL;
420
421 stream->status = MIXART_STREAM_STATUS_RUNNING;
422
423 break;
424 case SNDRV_PCM_TRIGGER_STOP:
425
426 /* STOP_STREAM */
427 if( mixart_set_stream_state(stream, 0) )
428 return -EINVAL;
429
430 stream->status = MIXART_STREAM_STATUS_OPEN;
431
432 snd_printdd("SNDRV_PCM_TRIGGER_STOP\n");
433
434 break;
435
436 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
437 /* TODO */
438 stream->status = MIXART_STREAM_STATUS_PAUSE;
439 snd_printdd("SNDRV_PCM_PAUSE_PUSH\n");
440 break;
441 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
442 /* TODO */
443 stream->status = MIXART_STREAM_STATUS_RUNNING;
444 snd_printdd("SNDRV_PCM_PAUSE_RELEASE\n");
445 break;
446 default:
447 return -EINVAL;
448 }
449 return 0;
450 }
451
452 static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
453 {
454 unsigned long timeout = jiffies + HZ;
455 while (atomic_read(&mgr->msg_processed) > 0) {
456 if (time_after(jiffies, timeout)) {
457 snd_printk(KERN_ERR "mixart: cannot process nonblock events!\n");
458 return -EBUSY;
459 }
460 schedule_timeout_uninterruptible(1);
461 }
462 return 0;
463 }
464
465 /*
466 * prepare callback for all pcms
467 */
468 static int snd_mixart_prepare(struct snd_pcm_substream *subs)
469 {
470 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
471 struct mixart_stream *stream = subs->runtime->private_data;
472
473 /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
474
475 snd_printdd("snd_mixart_prepare\n");
476
477 mixart_sync_nonblock_events(chip->mgr);
478
479 /* only the first stream can choose the sample rate */
480 /* the further opened streams will be limited to its frequency (see open) */
481 if(chip->mgr->ref_count_rate == 1)
482 chip->mgr->sample_rate = subs->runtime->rate;
483
484 /* set the clock only once (first stream) on the same pipe */
485 if(stream->pipe->references == 1) {
486 if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
487 return -EINVAL;
488 }
489
490 return 0;
491 }
492
493
494 static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
495 {
496 int err;
497 struct snd_mixart *chip;
498 struct mixart_msg request;
499 struct mixart_stream_param_desc stream_param;
500 struct mixart_return_uid resp;
501
502 chip = snd_pcm_substream_chip(stream->substream);
503
504 memset(&stream_param, 0, sizeof(stream_param));
505
506 stream_param.coding_type = CT_LINEAR;
507 stream_param.number_of_channel = stream->channels;
508
509 stream_param.sampling_freq = chip->mgr->sample_rate;
510 if(stream_param.sampling_freq == 0)
511 stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
512
513 switch(format){
514 case SNDRV_PCM_FORMAT_U8:
515 stream_param.sample_type = ST_INTEGER_8;
516 stream_param.sample_size = 8;
517 break;
518 case SNDRV_PCM_FORMAT_S16_LE:
519 stream_param.sample_type = ST_INTEGER_16LE;
520 stream_param.sample_size = 16;
521 break;
522 case SNDRV_PCM_FORMAT_S16_BE:
523 stream_param.sample_type = ST_INTEGER_16BE;
524 stream_param.sample_size = 16;
525 break;
526 case SNDRV_PCM_FORMAT_S24_3LE:
527 stream_param.sample_type = ST_INTEGER_24LE;
528 stream_param.sample_size = 24;
529 break;
530 case SNDRV_PCM_FORMAT_S24_3BE:
531 stream_param.sample_type = ST_INTEGER_24BE;
532 stream_param.sample_size = 24;
533 break;
534 case SNDRV_PCM_FORMAT_FLOAT_LE:
535 stream_param.sample_type = ST_FLOATING_POINT_32LE;
536 stream_param.sample_size = 32;
537 break;
538 case SNDRV_PCM_FORMAT_FLOAT_BE:
539 stream_param.sample_type = ST_FLOATING_POINT_32BE;
540 stream_param.sample_size = 32;
541 break;
542 default:
543 snd_printk(KERN_ERR "error mixart_set_format() : unknown format\n");
544 return -EINVAL;
545 }
546
547 snd_printdd("set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
548 stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
549
550 /* TODO: what else to configure ? */
551 /* stream_param.samples_per_frame = 2; */
552 /* stream_param.bytes_per_frame = 4; */
553 /* stream_param.bytes_per_sample = 2; */
554
555 stream_param.pipe_count = 1; /* set to 1 */
556 stream_param.stream_count = 1; /* set to 1 */
557 stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
558 stream_param.stream_desc[0].stream_idx = stream->substream->number;
559
560 request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
561 request.uid = (struct mixart_uid){0,0};
562 request.data = &stream_param;
563 request.size = sizeof(stream_param);
564
565 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
566 if((err < 0) || resp.error_code) {
567 snd_printk(KERN_ERR "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n", err, resp.error_code);
568 return -EINVAL;
569 }
570 return 0;
571 }
572
573
574 /*
575 * HW_PARAMS callback for all pcms
576 */
577 static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
578 struct snd_pcm_hw_params *hw)
579 {
580 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
581 struct mixart_mgr *mgr = chip->mgr;
582 struct mixart_stream *stream = subs->runtime->private_data;
583 snd_pcm_format_t format;
584 int err;
585 int channels;
586
587 /* set up channels */
588 channels = params_channels(hw);
589
590 /* set up format for the stream */
591 format = params_format(hw);
592
593 mutex_lock(&mgr->setup_mutex);
594
595 /* update the stream levels */
596 if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
597 int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
598 if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
599 mixart_update_playback_stream_level(chip, is_aes, subs->number);
600 else
601 mixart_update_capture_stream_level( chip, is_aes);
602 }
603
604 stream->channels = channels;
605
606 /* set the format to the board */
607 err = mixart_set_format(stream, format);
608 if(err < 0) {
609 return err;
610 }
611
612 /* allocate buffer */
613 err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
614
615 if (err > 0) {
616 struct mixart_bufferinfo *bufferinfo;
617 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
618 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
619 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
620 }
621
622 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
623 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
624 bufferinfo[i].available_length = subs->runtime->dma_bytes;
625 /* bufferinfo[i].buffer_id is already defined */
626
627 snd_printdd("snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n", i,
628 bufferinfo[i].buffer_address,
629 bufferinfo[i].available_length,
630 subs->number);
631 }
632 mutex_unlock(&mgr->setup_mutex);
633
634 return err;
635 }
636
637 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
638 {
639 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
640 snd_pcm_lib_free_pages(subs);
641 mixart_sync_nonblock_events(chip->mgr);
642 return 0;
643 }
644
645
646
647 /*
648 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
649 */
650 static struct snd_pcm_hardware snd_mixart_analog_caps =
651 {
652 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
653 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
654 SNDRV_PCM_INFO_PAUSE),
655 .formats = ( SNDRV_PCM_FMTBIT_U8 |
656 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
657 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
658 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
659 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
660 .rate_min = 8000,
661 .rate_max = 48000,
662 .channels_min = 1,
663 .channels_max = 2,
664 .buffer_bytes_max = (32*1024),
665 .period_bytes_min = 256, /* 256 frames U8 mono*/
666 .period_bytes_max = (16*1024),
667 .periods_min = 2,
668 .periods_max = (32*1024/256),
669 };
670
671 static struct snd_pcm_hardware snd_mixart_digital_caps =
672 {
673 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
674 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
675 SNDRV_PCM_INFO_PAUSE),
676 .formats = ( SNDRV_PCM_FMTBIT_U8 |
677 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
678 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
679 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
680 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
681 .rate_min = 32000,
682 .rate_max = 48000,
683 .channels_min = 1,
684 .channels_max = 2,
685 .buffer_bytes_max = (32*1024),
686 .period_bytes_min = 256, /* 256 frames U8 mono*/
687 .period_bytes_max = (16*1024),
688 .periods_min = 2,
689 .periods_max = (32*1024/256),
690 };
691
692
693 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
694 {
695 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
696 struct mixart_mgr *mgr = chip->mgr;
697 struct snd_pcm_runtime *runtime = subs->runtime;
698 struct snd_pcm *pcm = subs->pcm;
699 struct mixart_stream *stream;
700 struct mixart_pipe *pipe;
701 int err = 0;
702 int pcm_number;
703
704 mutex_lock(&mgr->setup_mutex);
705
706 if ( pcm == chip->pcm ) {
707 pcm_number = MIXART_PCM_ANALOG;
708 runtime->hw = snd_mixart_analog_caps;
709 } else {
710 snd_assert ( pcm == chip->pcm_dig );
711 pcm_number = MIXART_PCM_DIGITAL;
712 runtime->hw = snd_mixart_digital_caps;
713 }
714 snd_printdd("snd_mixart_playback_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
715
716 /* get stream info */
717 stream = &(chip->playback_stream[pcm_number][subs->number]);
718
719 if (stream->status != MIXART_STREAM_STATUS_FREE){
720 /* streams in use */
721 snd_printk(KERN_ERR "snd_mixart_playback_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
722 err = -EBUSY;
723 goto _exit_open;
724 }
725
726 /* get pipe pointer (out pipe) */
727 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
728
729 if (pipe == NULL) {
730 err = -EINVAL;
731 goto _exit_open;
732 }
733
734 /* start the pipe if necessary */
735 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
736 if( err < 0 ) {
737 snd_printk(KERN_ERR "error starting pipe!\n");
738 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
739 err = -EINVAL;
740 goto _exit_open;
741 }
742
743 stream->pipe = pipe;
744 stream->pcm_number = pcm_number;
745 stream->status = MIXART_STREAM_STATUS_OPEN;
746 stream->substream = subs;
747 stream->channels = 0; /* not configured yet */
748
749 runtime->private_data = stream;
750
751 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
752 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
753
754 /* if a sample rate is already used, another stream cannot change */
755 if(mgr->ref_count_rate++) {
756 if(mgr->sample_rate) {
757 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
758 }
759 }
760
761 _exit_open:
762 mutex_unlock(&mgr->setup_mutex);
763
764 return err;
765 }
766
767
768 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
769 {
770 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
771 struct mixart_mgr *mgr = chip->mgr;
772 struct snd_pcm_runtime *runtime = subs->runtime;
773 struct snd_pcm *pcm = subs->pcm;
774 struct mixart_stream *stream;
775 struct mixart_pipe *pipe;
776 int err = 0;
777 int pcm_number;
778
779 mutex_lock(&mgr->setup_mutex);
780
781 if ( pcm == chip->pcm ) {
782 pcm_number = MIXART_PCM_ANALOG;
783 runtime->hw = snd_mixart_analog_caps;
784 } else {
785 snd_assert ( pcm == chip->pcm_dig );
786 pcm_number = MIXART_PCM_DIGITAL;
787 runtime->hw = snd_mixart_digital_caps;
788 }
789
790 runtime->hw.channels_min = 2; /* for instance, no mono */
791
792 snd_printdd("snd_mixart_capture_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
793
794 /* get stream info */
795 stream = &(chip->capture_stream[pcm_number]);
796
797 if (stream->status != MIXART_STREAM_STATUS_FREE){
798 /* streams in use */
799 snd_printk(KERN_ERR "snd_mixart_capture_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
800 err = -EBUSY;
801 goto _exit_open;
802 }
803
804 /* get pipe pointer (in pipe) */
805 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
806
807 if (pipe == NULL) {
808 err = -EINVAL;
809 goto _exit_open;
810 }
811
812 /* start the pipe if necessary */
813 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
814 if( err < 0 ) {
815 snd_printk(KERN_ERR "error starting pipe!\n");
816 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
817 err = -EINVAL;
818 goto _exit_open;
819 }
820
821 stream->pipe = pipe;
822 stream->pcm_number = pcm_number;
823 stream->status = MIXART_STREAM_STATUS_OPEN;
824 stream->substream = subs;
825 stream->channels = 0; /* not configured yet */
826
827 runtime->private_data = stream;
828
829 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
830 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
831
832 /* if a sample rate is already used, another stream cannot change */
833 if(mgr->ref_count_rate++) {
834 if(mgr->sample_rate) {
835 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
836 }
837 }
838
839 _exit_open:
840 mutex_unlock(&mgr->setup_mutex);
841
842 return err;
843 }
844
845
846
847 static int snd_mixart_close(struct snd_pcm_substream *subs)
848 {
849 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
850 struct mixart_mgr *mgr = chip->mgr;
851 struct mixart_stream *stream = subs->runtime->private_data;
852
853 mutex_lock(&mgr->setup_mutex);
854
855 snd_printdd("snd_mixart_close C%d/P%d/Sub%d\n", chip->chip_idx, stream->pcm_number, subs->number);
856
857 /* sample rate released */
858 if(--mgr->ref_count_rate == 0) {
859 mgr->sample_rate = 0;
860 }
861
862 /* delete pipe */
863 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
864
865 snd_printk(KERN_ERR "error snd_mixart_kill_ref_pipe C%dP%d\n", chip->chip_idx, stream->pcm_number);
866 }
867
868 stream->pipe = NULL;
869 stream->status = MIXART_STREAM_STATUS_FREE;
870 stream->substream = NULL;
871
872 mutex_unlock(&mgr->setup_mutex);
873 return 0;
874 }
875
876
877 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
878 {
879 struct snd_pcm_runtime *runtime = subs->runtime;
880 struct mixart_stream *stream = runtime->private_data;
881
882 return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
883 }
884
885
886
887 static struct snd_pcm_ops snd_mixart_playback_ops = {
888 .open = snd_mixart_playback_open,
889 .close = snd_mixart_close,
890 .ioctl = snd_pcm_lib_ioctl,
891 .prepare = snd_mixart_prepare,
892 .hw_params = snd_mixart_hw_params,
893 .hw_free = snd_mixart_hw_free,
894 .trigger = snd_mixart_trigger,
895 .pointer = snd_mixart_stream_pointer,
896 };
897
898 static struct snd_pcm_ops snd_mixart_capture_ops = {
899 .open = snd_mixart_capture_open,
900 .close = snd_mixart_close,
901 .ioctl = snd_pcm_lib_ioctl,
902 .prepare = snd_mixart_prepare,
903 .hw_params = snd_mixart_hw_params,
904 .hw_free = snd_mixart_hw_free,
905 .trigger = snd_mixart_trigger,
906 .pointer = snd_mixart_stream_pointer,
907 };
908
909 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
910 {
911 #if 0
912 struct snd_pcm_substream *subs;
913 int stream;
914
915 for (stream = 0; stream < 2; stream++) {
916 int idx = 0;
917 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
918 /* set up the unique device id with the chip index */
919 subs->dma_device.id = subs->pcm->device << 16 |
920 subs->stream << 8 | (subs->number + 1) |
921 (chip->chip_idx + 1) << 24;
922 }
923 #endif
924 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
925 snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024);
926 }
927
928 /*
929 */
930 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
931 {
932 int err;
933 struct snd_pcm *pcm;
934 char name[32];
935
936 sprintf(name, "miXart analog %d", chip->chip_idx);
937 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
938 MIXART_PLAYBACK_STREAMS,
939 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
940 snd_printk(KERN_ERR "cannot create the analog pcm %d\n", chip->chip_idx);
941 return err;
942 }
943
944 pcm->private_data = chip;
945
946 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
947 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
948
949 pcm->info_flags = 0;
950 strcpy(pcm->name, name);
951
952 preallocate_buffers(chip, pcm);
953
954 chip->pcm = pcm;
955 return 0;
956 }
957
958
959 /*
960 */
961 static int snd_mixart_pcm_digital(struct snd_mixart *chip)
962 {
963 int err;
964 struct snd_pcm *pcm;
965 char name[32];
966
967 sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
968 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
969 MIXART_PLAYBACK_STREAMS,
970 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
971 snd_printk(KERN_ERR "cannot create the digital pcm %d\n", chip->chip_idx);
972 return err;
973 }
974
975 pcm->private_data = chip;
976
977 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
978 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
979
980 pcm->info_flags = 0;
981 strcpy(pcm->name, name);
982
983 preallocate_buffers(chip, pcm);
984
985 chip->pcm_dig = pcm;
986 return 0;
987 }
988
989 static int snd_mixart_chip_free(struct snd_mixart *chip)
990 {
991 kfree(chip);
992 return 0;
993 }
994
995 static int snd_mixart_chip_dev_free(struct snd_device *device)
996 {
997 struct snd_mixart *chip = device->device_data;
998 return snd_mixart_chip_free(chip);
999 }
1000
1001
1002 /*
1003 */
1004 static int __devinit snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1005 {
1006 int err;
1007 struct snd_mixart *chip;
1008 static struct snd_device_ops ops = {
1009 .dev_free = snd_mixart_chip_dev_free,
1010 };
1011
1012 mgr->chip[idx] = chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1013 if (! chip) {
1014 snd_printk(KERN_ERR "cannot allocate chip\n");
1015 return -ENOMEM;
1016 }
1017
1018 chip->card = card;
1019 chip->chip_idx = idx;
1020 chip->mgr = mgr;
1021
1022 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1023 snd_mixart_chip_free(chip);
1024 return err;
1025 }
1026
1027 snd_card_set_dev(card, &mgr->pci->dev);
1028
1029 return 0;
1030 }
1031
1032 int snd_mixart_create_pcm(struct snd_mixart* chip)
1033 {
1034 int err;
1035
1036 err = snd_mixart_pcm_analog(chip);
1037 if (err < 0)
1038 return err;
1039
1040 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1041
1042 err = snd_mixart_pcm_digital(chip);
1043 if (err < 0)
1044 return err;
1045 }
1046 return err;
1047 }
1048
1049
1050 /*
1051 * release all the cards assigned to a manager instance
1052 */
1053 static int snd_mixart_free(struct mixart_mgr *mgr)
1054 {
1055 unsigned int i;
1056
1057 for (i = 0; i < mgr->num_cards; i++) {
1058 if (mgr->chip[i])
1059 snd_card_free(mgr->chip[i]->card);
1060 }
1061
1062 /* stop mailbox */
1063 snd_mixart_exit_mailbox(mgr);
1064
1065 /* release irq */
1066 if (mgr->irq >= 0)
1067 free_irq(mgr->irq, (void *)mgr);
1068
1069 /* reset board if some firmware was loaded */
1070 if(mgr->dsp_loaded) {
1071 snd_mixart_reset_board(mgr);
1072 snd_printdd("reset miXart !\n");
1073 }
1074
1075 /* release the i/o ports */
1076 for (i = 0; i < 2; i++) {
1077 if (mgr->mem[i].virt)
1078 iounmap(mgr->mem[i].virt);
1079 }
1080 pci_release_regions(mgr->pci);
1081
1082 /* free flowarray */
1083 if(mgr->flowinfo.area) {
1084 snd_dma_free_pages(&mgr->flowinfo);
1085 mgr->flowinfo.area = NULL;
1086 }
1087 /* free bufferarray */
1088 if(mgr->bufferinfo.area) {
1089 snd_dma_free_pages(&mgr->bufferinfo);
1090 mgr->bufferinfo.area = NULL;
1091 }
1092
1093 pci_disable_device(mgr->pci);
1094 kfree(mgr);
1095 return 0;
1096 }
1097
1098 /*
1099 * proc interface
1100 */
1101 static long long snd_mixart_BA0_llseek(struct snd_info_entry *entry,
1102 void *private_file_data,
1103 struct file *file,
1104 long long offset,
1105 int orig)
1106 {
1107 offset = offset & ~3; /* 4 bytes aligned */
1108
1109 switch(orig) {
1110 case 0: /* SEEK_SET */
1111 file->f_pos = offset;
1112 break;
1113 case 1: /* SEEK_CUR */
1114 file->f_pos += offset;
1115 break;
1116 case 2: /* SEEK_END, offset is negative */
1117 file->f_pos = MIXART_BA0_SIZE + offset;
1118 break;
1119 default:
1120 return -EINVAL;
1121 }
1122 if(file->f_pos > MIXART_BA0_SIZE)
1123 file->f_pos = MIXART_BA0_SIZE;
1124 return file->f_pos;
1125 }
1126
1127 static long long snd_mixart_BA1_llseek(struct snd_info_entry *entry,
1128 void *private_file_data,
1129 struct file *file,
1130 long long offset,
1131 int orig)
1132 {
1133 offset = offset & ~3; /* 4 bytes aligned */
1134
1135 switch(orig) {
1136 case 0: /* SEEK_SET */
1137 file->f_pos = offset;
1138 break;
1139 case 1: /* SEEK_CUR */
1140 file->f_pos += offset;
1141 break;
1142 case 2: /* SEEK_END, offset is negative */
1143 file->f_pos = MIXART_BA1_SIZE + offset;
1144 break;
1145 default:
1146 return -EINVAL;
1147 }
1148 if(file->f_pos > MIXART_BA1_SIZE)
1149 file->f_pos = MIXART_BA1_SIZE;
1150 return file->f_pos;
1151 }
1152
1153 /*
1154 mixart_BA0 proc interface for BAR 0 - read callback
1155 */
1156 static long snd_mixart_BA0_read(struct snd_info_entry *entry, void *file_private_data,
1157 struct file *file, char __user *buf,
1158 unsigned long count, unsigned long pos)
1159 {
1160 struct mixart_mgr *mgr = entry->private_data;
1161
1162 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1163 if(count <= 0)
1164 return 0;
1165 if(pos + count > MIXART_BA0_SIZE)
1166 count = (long)(MIXART_BA0_SIZE - pos);
1167 if(copy_to_user_fromio(buf, MIXART_MEM( mgr, pos ), count))
1168 return -EFAULT;
1169 return count;
1170 }
1171
1172 /*
1173 mixart_BA1 proc interface for BAR 1 - read callback
1174 */
1175 static long snd_mixart_BA1_read(struct snd_info_entry *entry, void *file_private_data,
1176 struct file *file, char __user *buf,
1177 unsigned long count, unsigned long pos)
1178 {
1179 struct mixart_mgr *mgr = entry->private_data;
1180
1181 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1182 if(count <= 0)
1183 return 0;
1184 if(pos + count > MIXART_BA1_SIZE)
1185 count = (long)(MIXART_BA1_SIZE - pos);
1186 if(copy_to_user_fromio(buf, MIXART_REG( mgr, pos ), count))
1187 return -EFAULT;
1188 return count;
1189 }
1190
1191 static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1192 .read = snd_mixart_BA0_read,
1193 .llseek = snd_mixart_BA0_llseek
1194 };
1195
1196 static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1197 .read = snd_mixart_BA1_read,
1198 .llseek = snd_mixart_BA1_llseek
1199 };
1200
1201
1202 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1203 struct snd_info_buffer *buffer)
1204 {
1205 struct snd_mixart *chip = entry->private_data;
1206 u32 ref;
1207
1208 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1209
1210 /* stats available when embedded OS is running */
1211 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1212 snd_iprintf(buffer, "- hardware -\n");
1213 switch (chip->mgr->board_type ) {
1214 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1215 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1216 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1217 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1218 }
1219
1220 snd_iprintf(buffer, "- system load -\n");
1221
1222 /* get perf reference */
1223
1224 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1225
1226 if (ref) {
1227 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1228 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1229 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1230
1231 snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
1232 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
1233 snd_iprintf(buffer, "\tinterrups handling : %d\n\n", interr);
1234 }
1235 } /* endif elf loaded */
1236 }
1237
1238 static void __devinit snd_mixart_proc_init(struct snd_mixart *chip)
1239 {
1240 struct snd_info_entry *entry;
1241
1242 /* text interface to read perf and temp meters */
1243 if (! snd_card_proc_new(chip->card, "board_info", &entry)) {
1244 entry->private_data = chip;
1245 entry->c.text.read_size = 1024;
1246 entry->c.text.read = snd_mixart_proc_read;
1247 }
1248
1249 if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1250 entry->content = SNDRV_INFO_CONTENT_DATA;
1251 entry->private_data = chip->mgr;
1252 entry->c.ops = &snd_mixart_proc_ops_BA0;
1253 entry->size = MIXART_BA0_SIZE;
1254 }
1255 if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1256 entry->content = SNDRV_INFO_CONTENT_DATA;
1257 entry->private_data = chip->mgr;
1258 entry->c.ops = &snd_mixart_proc_ops_BA1;
1259 entry->size = MIXART_BA1_SIZE;
1260 }
1261 }
1262 /* end of proc interface */
1263
1264
1265 /*
1266 * probe function - creates the card manager
1267 */
1268 static int __devinit snd_mixart_probe(struct pci_dev *pci,
1269 const struct pci_device_id *pci_id)
1270 {
1271 static int dev;
1272 struct mixart_mgr *mgr;
1273 unsigned int i;
1274 int err;
1275 size_t size;
1276
1277 /*
1278 */
1279 if (dev >= SNDRV_CARDS)
1280 return -ENODEV;
1281 if (! enable[dev]) {
1282 dev++;
1283 return -ENOENT;
1284 }
1285
1286 /* enable PCI device */
1287 if ((err = pci_enable_device(pci)) < 0)
1288 return err;
1289 pci_set_master(pci);
1290
1291 /* check if we can restrict PCI DMA transfers to 32 bits */
1292 if (pci_set_dma_mask(pci, 0xffffffff) < 0) {
1293 snd_printk(KERN_ERR "architecture does not support 32bit PCI busmaster DMA\n");
1294 pci_disable_device(pci);
1295 return -ENXIO;
1296 }
1297
1298 /*
1299 */
1300 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1301 if (! mgr) {
1302 pci_disable_device(pci);
1303 return -ENOMEM;
1304 }
1305
1306 mgr->pci = pci;
1307 mgr->irq = -1;
1308
1309 /* resource assignment */
1310 if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
1311 kfree(mgr);
1312 pci_disable_device(pci);
1313 return err;
1314 }
1315 for (i = 0; i < 2; i++) {
1316 mgr->mem[i].phys = pci_resource_start(pci, i);
1317 mgr->mem[i].virt = ioremap_nocache(mgr->mem[i].phys,
1318 pci_resource_len(pci, i));
1319 }
1320
1321 if (request_irq(pci->irq, snd_mixart_interrupt, SA_INTERRUPT|SA_SHIRQ, CARD_NAME, (void *)mgr)) {
1322 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1323 snd_mixart_free(mgr);
1324 return -EBUSY;
1325 }
1326 mgr->irq = pci->irq;
1327
1328 sprintf(mgr->shortname, "Digigram miXart");
1329 sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq);
1330
1331 /* ISR spinlock */
1332 spin_lock_init(&mgr->lock);
1333
1334 /* init mailbox */
1335 mgr->msg_fifo_readptr = 0;
1336 mgr->msg_fifo_writeptr = 0;
1337
1338 spin_lock_init(&mgr->msg_lock);
1339 mutex_init(&mgr->msg_mutex);
1340 init_waitqueue_head(&mgr->msg_sleep);
1341 atomic_set(&mgr->msg_processed, 0);
1342
1343 /* init setup mutex*/
1344 mutex_init(&mgr->setup_mutex);
1345
1346 /* init message taslket */
1347 tasklet_init(&mgr->msg_taskq, snd_mixart_msg_tasklet, (unsigned long) mgr);
1348
1349 /* card assignment */
1350 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1351 for (i = 0; i < mgr->num_cards; i++) {
1352 struct snd_card *card;
1353 char tmpid[16];
1354 int idx;
1355
1356 if (index[dev] < 0)
1357 idx = index[dev];
1358 else
1359 idx = index[dev] + i;
1360 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1361 card = snd_card_new(idx, tmpid, THIS_MODULE, 0);
1362
1363 if (! card) {
1364 snd_printk(KERN_ERR "cannot allocate the card %d\n", i);
1365 snd_mixart_free(mgr);
1366 return -ENOMEM;
1367 }
1368
1369 strcpy(card->driver, CARD_NAME);
1370 sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1371 sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1372
1373 if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1374 snd_mixart_free(mgr);
1375 return err;
1376 }
1377
1378 if(i==0) {
1379 /* init proc interface only for chip0 */
1380 snd_mixart_proc_init(mgr->chip[i]);
1381 }
1382
1383 if ((err = snd_card_register(card)) < 0) {
1384 snd_mixart_free(mgr);
1385 return err;
1386 }
1387 }
1388
1389 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1390 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1391
1392 /* create array of streaminfo */
1393 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1394 sizeof(struct mixart_flowinfo)) );
1395 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1396 size, &mgr->flowinfo) < 0) {
1397 snd_mixart_free(mgr);
1398 return -ENOMEM;
1399 }
1400 /* init streaminfo_array */
1401 memset(mgr->flowinfo.area, 0, size);
1402
1403 /* create array of bufferinfo */
1404 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1405 sizeof(struct mixart_bufferinfo)) );
1406 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1407 size, &mgr->bufferinfo) < 0) {
1408 snd_mixart_free(mgr);
1409 return -ENOMEM;
1410 }
1411 /* init bufferinfo_array */
1412 memset(mgr->bufferinfo.area, 0, size);
1413
1414 /* set up firmware */
1415 err = snd_mixart_setup_firmware(mgr);
1416 if (err < 0) {
1417 snd_mixart_free(mgr);
1418 return err;
1419 }
1420
1421 pci_set_drvdata(pci, mgr);
1422 dev++;
1423 return 0;
1424 }
1425
1426 static void __devexit snd_mixart_remove(struct pci_dev *pci)
1427 {
1428 snd_mixart_free(pci_get_drvdata(pci));
1429 pci_set_drvdata(pci, NULL);
1430 }
1431
1432 static struct pci_driver driver = {
1433 .name = "Digigram miXart",
1434 .id_table = snd_mixart_ids,
1435 .probe = snd_mixart_probe,
1436 .remove = __devexit_p(snd_mixart_remove),
1437 };
1438
1439 static int __init alsa_card_mixart_init(void)
1440 {
1441 return pci_register_driver(&driver);
1442 }
1443
1444 static void __exit alsa_card_mixart_exit(void)
1445 {
1446 pci_unregister_driver(&driver);
1447 }
1448
1449 module_init(alsa_card_mixart_init)
1450 module_exit(alsa_card_mixart_exit)
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree