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ptrace, x86: fix the usage of ptrace_fork()
[linux-2.6/mini2440.git] / sound / pci / mixart / mixart.c
blobf23a73577c2219cb7da2b03317bf1106b7e1f981
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/moduleparam.h>
29 #include <linux/mutex.h>
30
31 #include <sound/core.h>
32 #include <sound/initval.h>
33 #include <sound/info.h>
34 #include <sound/control.h>
35 #include <sound/pcm.h>
36 #include <sound/pcm_params.h>
37 #include "mixart.h"
38 #include "mixart_hwdep.h"
39 #include "mixart_core.h"
40 #include "mixart_mixer.h"
41
42 #define CARD_NAME "miXart"
43
44 MODULE_AUTHOR("Digigram <alsa@digigram.com>");
45 MODULE_DESCRIPTION("Digigram " CARD_NAME);
46 MODULE_LICENSE("GPL");
47 MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
48
49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
50 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
51 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
52
53 module_param_array(index, int, NULL, 0444);
54 MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
55 module_param_array(id, charp, NULL, 0444);
56 MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
57 module_param_array(enable, bool, NULL, 0444);
58 MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
59
60 /*
61 */
62
63 static struct pci_device_id snd_mixart_ids[] = {
64 { 0x1057, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* MC8240 */
65 { 0, }
66 };
67
68 MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
69
70
71 static int mixart_set_pipe_state(struct mixart_mgr *mgr,
72 struct mixart_pipe *pipe, int start)
73 {
74 struct mixart_group_state_req group_state;
75 struct mixart_group_state_resp group_state_resp;
76 struct mixart_msg request;
77 int err;
78 u32 system_msg_uid;
79
80 switch(pipe->status) {
81 case PIPE_RUNNING:
82 case PIPE_CLOCK_SET:
83 if(start) return 0; /* already started */
84 break;
85 case PIPE_STOPPED:
86 if(!start) return 0; /* already stopped */
87 break;
88 default:
89 snd_printk(KERN_ERR "error mixart_set_pipe_state called with wrong pipe->status!\n");
90 return -EINVAL; /* function called with wrong pipe status */
91 }
92
93 system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
94
95 /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
96
97 request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
98 request.uid = (struct mixart_uid){0,0};
99 request.data = &system_msg_uid;
100 request.size = sizeof(system_msg_uid);
101
102 err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
103 if(err) {
104 snd_printk(KERN_ERR "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
105 return err;
106 }
107
108 /* start or stop the pipe (1 pipe) */
109
110 memset(&group_state, 0, sizeof(group_state));
111 group_state.pipe_count = 1;
112 group_state.pipe_uid[0] = pipe->group_uid;
113
114 if(start)
115 request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
116 else
117 request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
118
119 request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
120 request.data = &group_state;
121 request.size = sizeof(group_state);
122
123 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
124 if (err < 0 || group_state_resp.txx_status != 0) {
125 snd_printk(KERN_ERR "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status);
126 return -EINVAL;
127 }
128
129 if(start) {
130 u32 stat;
131
132 group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
133
134 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
135 if (err < 0 || group_state_resp.txx_status != 0) {
136 snd_printk(KERN_ERR "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status);
137 return -EINVAL;
138 }
139
140 /* in case of start send a synchro top */
141
142 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
143 request.uid = (struct mixart_uid){0,0};
144 request.data = NULL;
145 request.size = 0;
146
147 err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
148 if (err < 0 || stat != 0) {
149 snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n", err, stat);
150 return -EINVAL;
151 }
152
153 pipe->status = PIPE_RUNNING;
154 }
155 else /* !start */
156 pipe->status = PIPE_STOPPED;
157
158 return 0;
159 }
160
161
162 static int mixart_set_clock(struct mixart_mgr *mgr,
163 struct mixart_pipe *pipe, unsigned int rate)
164 {
165 struct mixart_msg request;
166 struct mixart_clock_properties clock_properties;
167 struct mixart_clock_properties_resp clock_prop_resp;
168 int err;
169
170 switch(pipe->status) {
171 case PIPE_CLOCK_SET:
172 break;
173 case PIPE_RUNNING:
174 if(rate != 0)
175 break;
176 default:
177 if(rate == 0)
178 return 0; /* nothing to do */
179 else {
180 snd_printk(KERN_ERR "error mixart_set_clock(%d) called with wrong pipe->status !\n", rate);
181 return -EINVAL;
182 }
183 }
184
185 memset(&clock_properties, 0, sizeof(clock_properties));
186 clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
187 clock_properties.clock_mode = CM_STANDALONE;
188 clock_properties.frequency = rate;
189 clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
190 clock_properties.uid_caller[0] = pipe->group_uid;
191
192 snd_printdd("mixart_set_clock to %d kHz\n", rate);
193
194 request.message_id = MSG_CLOCK_SET_PROPERTIES;
195 request.uid = mgr->uid_console_manager;
196 request.data = &clock_properties;
197 request.size = sizeof(clock_properties);
198
199 err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
200 if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
201 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);
202 return -EINVAL;
203 }
204
205 if(rate) pipe->status = PIPE_CLOCK_SET;
206 else pipe->status = PIPE_RUNNING;
207
208 return 0;
209 }
210
211
212 /*
213 * Allocate or reference output pipe for analog IOs (pcmp0/1)
214 */
215 struct mixart_pipe *
216 snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
217 int monitoring)
218 {
219 int stream_count;
220 struct mixart_pipe *pipe;
221 struct mixart_msg request;
222
223 if(capture) {
224 if (pcm_number == MIXART_PCM_ANALOG) {
225 pipe = &(chip->pipe_in_ana); /* analog inputs */
226 } else {
227 pipe = &(chip->pipe_in_dig); /* digital inputs */
228 }
229 request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
230 stream_count = MIXART_CAPTURE_STREAMS;
231 } else {
232 if (pcm_number == MIXART_PCM_ANALOG) {
233 pipe = &(chip->pipe_out_ana); /* analog outputs */
234 } else {
235 pipe = &(chip->pipe_out_dig); /* digital outputs */
236 }
237 request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
238 stream_count = MIXART_PLAYBACK_STREAMS;
239 }
240
241 /* a new stream is opened and there are already all streams in use */
242 if( (monitoring == 0) && (pipe->references >= stream_count) ) {
243 return NULL;
244 }
245
246 /* pipe is not yet defined */
247 if( pipe->status == PIPE_UNDEFINED ) {
248 int err, i;
249 struct {
250 struct mixart_streaming_group_req sgroup_req;
251 struct mixart_streaming_group sgroup_resp;
252 } *buf;
253
254 snd_printdd("add_ref_pipe audio chip(%d) pcm(%d)\n", chip->chip_idx, pcm_number);
255
256 buf = kmalloc(sizeof(*buf), GFP_KERNEL);
257 if (!buf)
258 return NULL;
259
260 request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */
261 request.data = &buf->sgroup_req;
262 request.size = sizeof(buf->sgroup_req);
263
264 memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
265
266 buf->sgroup_req.stream_count = stream_count;
267 buf->sgroup_req.channel_count = 2;
268 buf->sgroup_req.latency = 256;
269 buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */
270
271 for (i=0; i<stream_count; i++) {
272 int j;
273 struct mixart_flowinfo *flowinfo;
274 struct mixart_bufferinfo *bufferinfo;
275
276 /* we don't yet know the format, so config 16 bit pcm audio for instance */
277 buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
278 buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
279 buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
280
281 /* find the right bufferinfo_array */
282 j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
283 if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
284
285 buf->sgroup_req.flow_entry[i] = j;
286
287 flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
288 flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
289 flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */
290
291 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
292 bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */
293 bufferinfo[j].available_length = 0; /* buffer is not yet allocated */
294
295 /* construct the identifier of the stream buffer received in the interrupts ! */
296 bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
297 if(capture) {
298 bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
299 }
300 }
301
302 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
303 if((err < 0) || (buf->sgroup_resp.status != 0)) {
304 snd_printk(KERN_ERR "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n", err, buf->sgroup_resp.status);
305 kfree(buf);
306 return NULL;
307 }
308
309 pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */
310 pipe->stream_count = buf->sgroup_resp.stream_count;
311 /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
312
313 pipe->status = PIPE_STOPPED;
314 kfree(buf);
315 }
316
317 if(monitoring) pipe->monitoring = 1;
318 else pipe->references++;
319
320 return pipe;
321 }
322
323
324 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
325 struct mixart_pipe *pipe, int monitoring)
326 {
327 int err = 0;
328
329 if(pipe->status == PIPE_UNDEFINED)
330 return 0;
331
332 if(monitoring)
333 pipe->monitoring = 0;
334 else
335 pipe->references--;
336
337 if((pipe->references <= 0) && (pipe->monitoring == 0)) {
338
339 struct mixart_msg request;
340 struct mixart_delete_group_resp delete_resp;
341
342 /* release the clock */
343 err = mixart_set_clock( mgr, pipe, 0);
344 if( err < 0 ) {
345 snd_printk(KERN_ERR "mixart_set_clock(0) return error!\n");
346 }
347
348 /* stop the pipe */
349 err = mixart_set_pipe_state(mgr, pipe, 0);
350 if( err < 0 ) {
351 snd_printk(KERN_ERR "error stopping pipe!\n");
352 }
353
354 request.message_id = MSG_STREAM_DELETE_GROUP;
355 request.uid = (struct mixart_uid){0,0};
356 request.data = &pipe->group_uid; /* the streaming group ! */
357 request.size = sizeof(pipe->group_uid);
358
359 /* delete the pipe */
360 err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
361 if ((err < 0) || (delete_resp.status != 0)) {
362 snd_printk(KERN_ERR "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n", err, delete_resp.status);
363 }
364
365 pipe->group_uid = (struct mixart_uid){0,0};
366 pipe->stream_count = 0;
367 pipe->status = PIPE_UNDEFINED;
368 }
369
370 return err;
371 }
372
373 static int mixart_set_stream_state(struct mixart_stream *stream, int start)
374 {
375 struct snd_mixart *chip;
376 struct mixart_stream_state_req stream_state_req;
377 struct mixart_msg request;
378
379 if(!stream->substream)
380 return -EINVAL;
381
382 memset(&stream_state_req, 0, sizeof(stream_state_req));
383 stream_state_req.stream_count = 1;
384 stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
385 stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
386
387 if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
388 request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
389 else
390 request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
391
392 request.uid = (struct mixart_uid){0,0};
393 request.data = &stream_state_req;
394 request.size = sizeof(stream_state_req);
395
396 stream->abs_period_elapsed = 0; /* reset stream pos */
397 stream->buf_periods = 0;
398 stream->buf_period_frag = 0;
399
400 chip = snd_pcm_substream_chip(stream->substream);
401
402 return snd_mixart_send_msg_nonblock(chip->mgr, &request);
403 }
404
405 /*
406 * Trigger callback
407 */
408
409 static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
410 {
411 struct mixart_stream *stream = subs->runtime->private_data;
412
413 switch (cmd) {
414 case SNDRV_PCM_TRIGGER_START:
415
416 snd_printdd("SNDRV_PCM_TRIGGER_START\n");
417
418 /* START_STREAM */
419 if( mixart_set_stream_state(stream, 1) )
420 return -EINVAL;
421
422 stream->status = MIXART_STREAM_STATUS_RUNNING;
423
424 break;
425 case SNDRV_PCM_TRIGGER_STOP:
426
427 /* STOP_STREAM */
428 if( mixart_set_stream_state(stream, 0) )
429 return -EINVAL;
430
431 stream->status = MIXART_STREAM_STATUS_OPEN;
432
433 snd_printdd("SNDRV_PCM_TRIGGER_STOP\n");
434
435 break;
436
437 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
438 /* TODO */
439 stream->status = MIXART_STREAM_STATUS_PAUSE;
440 snd_printdd("SNDRV_PCM_PAUSE_PUSH\n");
441 break;
442 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
443 /* TODO */
444 stream->status = MIXART_STREAM_STATUS_RUNNING;
445 snd_printdd("SNDRV_PCM_PAUSE_RELEASE\n");
446 break;
447 default:
448 return -EINVAL;
449 }
450 return 0;
451 }
452
453 static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
454 {
455 unsigned long timeout = jiffies + HZ;
456 while (atomic_read(&mgr->msg_processed) > 0) {
457 if (time_after(jiffies, timeout)) {
458 snd_printk(KERN_ERR "mixart: cannot process nonblock events!\n");
459 return -EBUSY;
460 }
461 schedule_timeout_uninterruptible(1);
462 }
463 return 0;
464 }
465
466 /*
467 * prepare callback for all pcms
468 */
469 static int snd_mixart_prepare(struct snd_pcm_substream *subs)
470 {
471 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
472 struct mixart_stream *stream = subs->runtime->private_data;
473
474 /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
475
476 snd_printdd("snd_mixart_prepare\n");
477
478 mixart_sync_nonblock_events(chip->mgr);
479
480 /* only the first stream can choose the sample rate */
481 /* the further opened streams will be limited to its frequency (see open) */
482 if(chip->mgr->ref_count_rate == 1)
483 chip->mgr->sample_rate = subs->runtime->rate;
484
485 /* set the clock only once (first stream) on the same pipe */
486 if(stream->pipe->references == 1) {
487 if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
488 return -EINVAL;
489 }
490
491 return 0;
492 }
493
494
495 static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
496 {
497 int err;
498 struct snd_mixart *chip;
499 struct mixart_msg request;
500 struct mixart_stream_param_desc stream_param;
501 struct mixart_return_uid resp;
502
503 chip = snd_pcm_substream_chip(stream->substream);
504
505 memset(&stream_param, 0, sizeof(stream_param));
506
507 stream_param.coding_type = CT_LINEAR;
508 stream_param.number_of_channel = stream->channels;
509
510 stream_param.sampling_freq = chip->mgr->sample_rate;
511 if(stream_param.sampling_freq == 0)
512 stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
513
514 switch(format){
515 case SNDRV_PCM_FORMAT_U8:
516 stream_param.sample_type = ST_INTEGER_8;
517 stream_param.sample_size = 8;
518 break;
519 case SNDRV_PCM_FORMAT_S16_LE:
520 stream_param.sample_type = ST_INTEGER_16LE;
521 stream_param.sample_size = 16;
522 break;
523 case SNDRV_PCM_FORMAT_S16_BE:
524 stream_param.sample_type = ST_INTEGER_16BE;
525 stream_param.sample_size = 16;
526 break;
527 case SNDRV_PCM_FORMAT_S24_3LE:
528 stream_param.sample_type = ST_INTEGER_24LE;
529 stream_param.sample_size = 24;
530 break;
531 case SNDRV_PCM_FORMAT_S24_3BE:
532 stream_param.sample_type = ST_INTEGER_24BE;
533 stream_param.sample_size = 24;
534 break;
535 case SNDRV_PCM_FORMAT_FLOAT_LE:
536 stream_param.sample_type = ST_FLOATING_POINT_32LE;
537 stream_param.sample_size = 32;
538 break;
539 case SNDRV_PCM_FORMAT_FLOAT_BE:
540 stream_param.sample_type = ST_FLOATING_POINT_32BE;
541 stream_param.sample_size = 32;
542 break;
543 default:
544 snd_printk(KERN_ERR "error mixart_set_format() : unknown format\n");
545 return -EINVAL;
546 }
547
548 snd_printdd("set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
549 stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
550
551 /* TODO: what else to configure ? */
552 /* stream_param.samples_per_frame = 2; */
553 /* stream_param.bytes_per_frame = 4; */
554 /* stream_param.bytes_per_sample = 2; */
555
556 stream_param.pipe_count = 1; /* set to 1 */
557 stream_param.stream_count = 1; /* set to 1 */
558 stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
559 stream_param.stream_desc[0].stream_idx = stream->substream->number;
560
561 request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
562 request.uid = (struct mixart_uid){0,0};
563 request.data = &stream_param;
564 request.size = sizeof(stream_param);
565
566 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
567 if((err < 0) || resp.error_code) {
568 snd_printk(KERN_ERR "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n", err, resp.error_code);
569 return -EINVAL;
570 }
571 return 0;
572 }
573
574
575 /*
576 * HW_PARAMS callback for all pcms
577 */
578 static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
579 struct snd_pcm_hw_params *hw)
580 {
581 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
582 struct mixart_mgr *mgr = chip->mgr;
583 struct mixart_stream *stream = subs->runtime->private_data;
584 snd_pcm_format_t format;
585 int err;
586 int channels;
587
588 /* set up channels */
589 channels = params_channels(hw);
590
591 /* set up format for the stream */
592 format = params_format(hw);
593
594 mutex_lock(&mgr->setup_mutex);
595
596 /* update the stream levels */
597 if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
598 int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
599 if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
600 mixart_update_playback_stream_level(chip, is_aes, subs->number);
601 else
602 mixart_update_capture_stream_level( chip, is_aes);
603 }
604
605 stream->channels = channels;
606
607 /* set the format to the board */
608 err = mixart_set_format(stream, format);
609 if(err < 0) {
610 return err;
611 }
612
613 /* allocate buffer */
614 err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
615
616 if (err > 0) {
617 struct mixart_bufferinfo *bufferinfo;
618 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
619 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
620 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
621 }
622
623 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
624 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
625 bufferinfo[i].available_length = subs->runtime->dma_bytes;
626 /* bufferinfo[i].buffer_id is already defined */
627
628 snd_printdd("snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n", i,
629 bufferinfo[i].buffer_address,
630 bufferinfo[i].available_length,
631 subs->number);
632 }
633 mutex_unlock(&mgr->setup_mutex);
634
635 return err;
636 }
637
638 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
639 {
640 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
641 snd_pcm_lib_free_pages(subs);
642 mixart_sync_nonblock_events(chip->mgr);
643 return 0;
644 }
645
646
647
648 /*
649 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
650 */
651 static struct snd_pcm_hardware snd_mixart_analog_caps =
652 {
653 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
654 SNDRV_PCM_INFO_MMAP_VALID |
655 SNDRV_PCM_INFO_PAUSE),
656 .formats = ( SNDRV_PCM_FMTBIT_U8 |
657 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
658 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
659 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
660 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
661 .rate_min = 8000,
662 .rate_max = 48000,
663 .channels_min = 1,
664 .channels_max = 2,
665 .buffer_bytes_max = (32*1024),
666 .period_bytes_min = 256, /* 256 frames U8 mono*/
667 .period_bytes_max = (16*1024),
668 .periods_min = 2,
669 .periods_max = (32*1024/256),
670 };
671
672 static struct snd_pcm_hardware snd_mixart_digital_caps =
673 {
674 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
675 SNDRV_PCM_INFO_MMAP_VALID |
676 SNDRV_PCM_INFO_PAUSE),
677 .formats = ( SNDRV_PCM_FMTBIT_U8 |
678 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
679 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
680 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
681 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
682 .rate_min = 32000,
683 .rate_max = 48000,
684 .channels_min = 1,
685 .channels_max = 2,
686 .buffer_bytes_max = (32*1024),
687 .period_bytes_min = 256, /* 256 frames U8 mono*/
688 .period_bytes_max = (16*1024),
689 .periods_min = 2,
690 .periods_max = (32*1024/256),
691 };
692
693
694 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
695 {
696 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
697 struct mixart_mgr *mgr = chip->mgr;
698 struct snd_pcm_runtime *runtime = subs->runtime;
699 struct snd_pcm *pcm = subs->pcm;
700 struct mixart_stream *stream;
701 struct mixart_pipe *pipe;
702 int err = 0;
703 int pcm_number;
704
705 mutex_lock(&mgr->setup_mutex);
706
707 if ( pcm == chip->pcm ) {
708 pcm_number = MIXART_PCM_ANALOG;
709 runtime->hw = snd_mixart_analog_caps;
710 } else {
711 snd_BUG_ON(pcm != chip->pcm_dig);
712 pcm_number = MIXART_PCM_DIGITAL;
713 runtime->hw = snd_mixart_digital_caps;
714 }
715 snd_printdd("snd_mixart_playback_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
716
717 /* get stream info */
718 stream = &(chip->playback_stream[pcm_number][subs->number]);
719
720 if (stream->status != MIXART_STREAM_STATUS_FREE){
721 /* streams in use */
722 snd_printk(KERN_ERR "snd_mixart_playback_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
723 err = -EBUSY;
724 goto _exit_open;
725 }
726
727 /* get pipe pointer (out pipe) */
728 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
729
730 if (pipe == NULL) {
731 err = -EINVAL;
732 goto _exit_open;
733 }
734
735 /* start the pipe if necessary */
736 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
737 if( err < 0 ) {
738 snd_printk(KERN_ERR "error starting pipe!\n");
739 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
740 err = -EINVAL;
741 goto _exit_open;
742 }
743
744 stream->pipe = pipe;
745 stream->pcm_number = pcm_number;
746 stream->status = MIXART_STREAM_STATUS_OPEN;
747 stream->substream = subs;
748 stream->channels = 0; /* not configured yet */
749
750 runtime->private_data = stream;
751
752 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
753 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
754
755 /* if a sample rate is already used, another stream cannot change */
756 if(mgr->ref_count_rate++) {
757 if(mgr->sample_rate) {
758 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
759 }
760 }
761
762 _exit_open:
763 mutex_unlock(&mgr->setup_mutex);
764
765 return err;
766 }
767
768
769 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
770 {
771 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
772 struct mixart_mgr *mgr = chip->mgr;
773 struct snd_pcm_runtime *runtime = subs->runtime;
774 struct snd_pcm *pcm = subs->pcm;
775 struct mixart_stream *stream;
776 struct mixart_pipe *pipe;
777 int err = 0;
778 int pcm_number;
779
780 mutex_lock(&mgr->setup_mutex);
781
782 if ( pcm == chip->pcm ) {
783 pcm_number = MIXART_PCM_ANALOG;
784 runtime->hw = snd_mixart_analog_caps;
785 } else {
786 snd_BUG_ON(pcm != chip->pcm_dig);
787 pcm_number = MIXART_PCM_DIGITAL;
788 runtime->hw = snd_mixart_digital_caps;
789 }
790
791 runtime->hw.channels_min = 2; /* for instance, no mono */
792
793 snd_printdd("snd_mixart_capture_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
794
795 /* get stream info */
796 stream = &(chip->capture_stream[pcm_number]);
797
798 if (stream->status != MIXART_STREAM_STATUS_FREE){
799 /* streams in use */
800 snd_printk(KERN_ERR "snd_mixart_capture_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
801 err = -EBUSY;
802 goto _exit_open;
803 }
804
805 /* get pipe pointer (in pipe) */
806 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
807
808 if (pipe == NULL) {
809 err = -EINVAL;
810 goto _exit_open;
811 }
812
813 /* start the pipe if necessary */
814 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
815 if( err < 0 ) {
816 snd_printk(KERN_ERR "error starting pipe!\n");
817 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
818 err = -EINVAL;
819 goto _exit_open;
820 }
821
822 stream->pipe = pipe;
823 stream->pcm_number = pcm_number;
824 stream->status = MIXART_STREAM_STATUS_OPEN;
825 stream->substream = subs;
826 stream->channels = 0; /* not configured yet */
827
828 runtime->private_data = stream;
829
830 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
831 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
832
833 /* if a sample rate is already used, another stream cannot change */
834 if(mgr->ref_count_rate++) {
835 if(mgr->sample_rate) {
836 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
837 }
838 }
839
840 _exit_open:
841 mutex_unlock(&mgr->setup_mutex);
842
843 return err;
844 }
845
846
847
848 static int snd_mixart_close(struct snd_pcm_substream *subs)
849 {
850 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
851 struct mixart_mgr *mgr = chip->mgr;
852 struct mixart_stream *stream = subs->runtime->private_data;
853
854 mutex_lock(&mgr->setup_mutex);
855
856 snd_printdd("snd_mixart_close C%d/P%d/Sub%d\n", chip->chip_idx, stream->pcm_number, subs->number);
857
858 /* sample rate released */
859 if(--mgr->ref_count_rate == 0) {
860 mgr->sample_rate = 0;
861 }
862
863 /* delete pipe */
864 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
865
866 snd_printk(KERN_ERR "error snd_mixart_kill_ref_pipe C%dP%d\n", chip->chip_idx, stream->pcm_number);
867 }
868
869 stream->pipe = NULL;
870 stream->status = MIXART_STREAM_STATUS_FREE;
871 stream->substream = NULL;
872
873 mutex_unlock(&mgr->setup_mutex);
874 return 0;
875 }
876
877
878 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
879 {
880 struct snd_pcm_runtime *runtime = subs->runtime;
881 struct mixart_stream *stream = runtime->private_data;
882
883 return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
884 }
885
886
887
888 static struct snd_pcm_ops snd_mixart_playback_ops = {
889 .open = snd_mixart_playback_open,
890 .close = snd_mixart_close,
891 .ioctl = snd_pcm_lib_ioctl,
892 .prepare = snd_mixart_prepare,
893 .hw_params = snd_mixart_hw_params,
894 .hw_free = snd_mixart_hw_free,
895 .trigger = snd_mixart_trigger,
896 .pointer = snd_mixart_stream_pointer,
897 };
898
899 static struct snd_pcm_ops snd_mixart_capture_ops = {
900 .open = snd_mixart_capture_open,
901 .close = snd_mixart_close,
902 .ioctl = snd_pcm_lib_ioctl,
903 .prepare = snd_mixart_prepare,
904 .hw_params = snd_mixart_hw_params,
905 .hw_free = snd_mixart_hw_free,
906 .trigger = snd_mixart_trigger,
907 .pointer = snd_mixart_stream_pointer,
908 };
909
910 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
911 {
912 #if 0
913 struct snd_pcm_substream *subs;
914 int stream;
915
916 for (stream = 0; stream < 2; stream++) {
917 int idx = 0;
918 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
919 /* set up the unique device id with the chip index */
920 subs->dma_device.id = subs->pcm->device << 16 |
921 subs->stream << 8 | (subs->number + 1) |
922 (chip->chip_idx + 1) << 24;
923 }
924 #endif
925 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
926 snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024);
927 }
928
929 /*
930 */
931 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
932 {
933 int err;
934 struct snd_pcm *pcm;
935 char name[32];
936
937 sprintf(name, "miXart analog %d", chip->chip_idx);
938 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
939 MIXART_PLAYBACK_STREAMS,
940 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
941 snd_printk(KERN_ERR "cannot create the analog pcm %d\n", chip->chip_idx);
942 return err;
943 }
944
945 pcm->private_data = chip;
946
947 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
948 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
949
950 pcm->info_flags = 0;
951 strcpy(pcm->name, name);
952
953 preallocate_buffers(chip, pcm);
954
955 chip->pcm = pcm;
956 return 0;
957 }
958
959
960 /*
961 */
962 static int snd_mixart_pcm_digital(struct snd_mixart *chip)
963 {
964 int err;
965 struct snd_pcm *pcm;
966 char name[32];
967
968 sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
969 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
970 MIXART_PLAYBACK_STREAMS,
971 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
972 snd_printk(KERN_ERR "cannot create the digital pcm %d\n", chip->chip_idx);
973 return err;
974 }
975
976 pcm->private_data = chip;
977
978 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
979 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
980
981 pcm->info_flags = 0;
982 strcpy(pcm->name, name);
983
984 preallocate_buffers(chip, pcm);
985
986 chip->pcm_dig = pcm;
987 return 0;
988 }
989
990 static int snd_mixart_chip_free(struct snd_mixart *chip)
991 {
992 kfree(chip);
993 return 0;
994 }
995
996 static int snd_mixart_chip_dev_free(struct snd_device *device)
997 {
998 struct snd_mixart *chip = device->device_data;
999 return snd_mixart_chip_free(chip);
1000 }
1001
1002
1003 /*
1004 */
1005 static int __devinit snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1006 {
1007 int err;
1008 struct snd_mixart *chip;
1009 static struct snd_device_ops ops = {
1010 .dev_free = snd_mixart_chip_dev_free,
1011 };
1012
1013 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1014 if (! chip) {
1015 snd_printk(KERN_ERR "cannot allocate chip\n");
1016 return -ENOMEM;
1017 }
1018
1019 chip->card = card;
1020 chip->chip_idx = idx;
1021 chip->mgr = mgr;
1022
1023 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1024 snd_mixart_chip_free(chip);
1025 return err;
1026 }
1027
1028 mgr->chip[idx] = chip;
1029 snd_card_set_dev(card, &mgr->pci->dev);
1030
1031 return 0;
1032 }
1033
1034 int snd_mixart_create_pcm(struct snd_mixart* chip)
1035 {
1036 int err;
1037
1038 err = snd_mixart_pcm_analog(chip);
1039 if (err < 0)
1040 return err;
1041
1042 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1043
1044 err = snd_mixart_pcm_digital(chip);
1045 if (err < 0)
1046 return err;
1047 }
1048 return err;
1049 }
1050
1051
1052 /*
1053 * release all the cards assigned to a manager instance
1054 */
1055 static int snd_mixart_free(struct mixart_mgr *mgr)
1056 {
1057 unsigned int i;
1058
1059 for (i = 0; i < mgr->num_cards; i++) {
1060 if (mgr->chip[i])
1061 snd_card_free(mgr->chip[i]->card);
1062 }
1063
1064 /* stop mailbox */
1065 snd_mixart_exit_mailbox(mgr);
1066
1067 /* release irq */
1068 if (mgr->irq >= 0)
1069 free_irq(mgr->irq, mgr);
1070
1071 /* reset board if some firmware was loaded */
1072 if(mgr->dsp_loaded) {
1073 snd_mixart_reset_board(mgr);
1074 snd_printdd("reset miXart !\n");
1075 }
1076
1077 /* release the i/o ports */
1078 for (i = 0; i < 2; i++) {
1079 if (mgr->mem[i].virt)
1080 iounmap(mgr->mem[i].virt);
1081 }
1082 pci_release_regions(mgr->pci);
1083
1084 /* free flowarray */
1085 if(mgr->flowinfo.area) {
1086 snd_dma_free_pages(&mgr->flowinfo);
1087 mgr->flowinfo.area = NULL;
1088 }
1089 /* free bufferarray */
1090 if(mgr->bufferinfo.area) {
1091 snd_dma_free_pages(&mgr->bufferinfo);
1092 mgr->bufferinfo.area = NULL;
1093 }
1094
1095 pci_disable_device(mgr->pci);
1096 kfree(mgr);
1097 return 0;
1098 }
1099
1100 /*
1101 * proc interface
1102 */
1103 static long long snd_mixart_BA0_llseek(struct snd_info_entry *entry,
1104 void *private_file_data,
1105 struct file *file,
1106 long long offset,
1107 int orig)
1108 {
1109 offset = offset & ~3; /* 4 bytes aligned */
1110
1111 switch(orig) {
1112 case SEEK_SET:
1113 file->f_pos = offset;
1114 break;
1115 case SEEK_CUR:
1116 file->f_pos += offset;
1117 break;
1118 case SEEK_END: /* offset is negative */
1119 file->f_pos = MIXART_BA0_SIZE + offset;
1120 break;
1121 default:
1122 return -EINVAL;
1123 }
1124 if(file->f_pos > MIXART_BA0_SIZE)
1125 file->f_pos = MIXART_BA0_SIZE;
1126 return file->f_pos;
1127 }
1128
1129 static long long snd_mixart_BA1_llseek(struct snd_info_entry *entry,
1130 void *private_file_data,
1131 struct file *file,
1132 long long offset,
1133 int orig)
1134 {
1135 offset = offset & ~3; /* 4 bytes aligned */
1136
1137 switch(orig) {
1138 case SEEK_SET:
1139 file->f_pos = offset;
1140 break;
1141 case SEEK_CUR:
1142 file->f_pos += offset;
1143 break;
1144 case SEEK_END: /* offset is negative */
1145 file->f_pos = MIXART_BA1_SIZE + offset;
1146 break;
1147 default:
1148 return -EINVAL;
1149 }
1150 if(file->f_pos > MIXART_BA1_SIZE)
1151 file->f_pos = MIXART_BA1_SIZE;
1152 return file->f_pos;
1153 }
1154
1155 /*
1156 mixart_BA0 proc interface for BAR 0 - read callback
1157 */
1158 static long snd_mixart_BA0_read(struct snd_info_entry *entry, void *file_private_data,
1159 struct file *file, char __user *buf,
1160 unsigned long count, unsigned long pos)
1161 {
1162 struct mixart_mgr *mgr = entry->private_data;
1163
1164 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1165 if(count <= 0)
1166 return 0;
1167 if(pos + count > MIXART_BA0_SIZE)
1168 count = (long)(MIXART_BA0_SIZE - pos);
1169 if(copy_to_user_fromio(buf, MIXART_MEM( mgr, pos ), count))
1170 return -EFAULT;
1171 return count;
1172 }
1173
1174 /*
1175 mixart_BA1 proc interface for BAR 1 - read callback
1176 */
1177 static long snd_mixart_BA1_read(struct snd_info_entry *entry, void *file_private_data,
1178 struct file *file, char __user *buf,
1179 unsigned long count, unsigned long pos)
1180 {
1181 struct mixart_mgr *mgr = entry->private_data;
1182
1183 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1184 if(count <= 0)
1185 return 0;
1186 if(pos + count > MIXART_BA1_SIZE)
1187 count = (long)(MIXART_BA1_SIZE - pos);
1188 if(copy_to_user_fromio(buf, MIXART_REG( mgr, pos ), count))
1189 return -EFAULT;
1190 return count;
1191 }
1192
1193 static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1194 .read = snd_mixart_BA0_read,
1195 .llseek = snd_mixart_BA0_llseek
1196 };
1197
1198 static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1199 .read = snd_mixart_BA1_read,
1200 .llseek = snd_mixart_BA1_llseek
1201 };
1202
1203
1204 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1205 struct snd_info_buffer *buffer)
1206 {
1207 struct snd_mixart *chip = entry->private_data;
1208 u32 ref;
1209
1210 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1211
1212 /* stats available when embedded OS is running */
1213 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1214 snd_iprintf(buffer, "- hardware -\n");
1215 switch (chip->mgr->board_type ) {
1216 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1217 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1218 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1219 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1220 }
1221
1222 snd_iprintf(buffer, "- system load -\n");
1223
1224 /* get perf reference */
1225
1226 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1227
1228 if (ref) {
1229 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1230 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1231 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1232
1233 snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
1234 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
1235 snd_iprintf(buffer, "\tinterrups handling : %d\n\n", interr);
1236 }
1237 } /* endif elf loaded */
1238 }
1239
1240 static void __devinit snd_mixart_proc_init(struct snd_mixart *chip)
1241 {
1242 struct snd_info_entry *entry;
1243
1244 /* text interface to read perf and temp meters */
1245 if (! snd_card_proc_new(chip->card, "board_info", &entry)) {
1246 entry->private_data = chip;
1247 entry->c.text.read = snd_mixart_proc_read;
1248 }
1249
1250 if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1251 entry->content = SNDRV_INFO_CONTENT_DATA;
1252 entry->private_data = chip->mgr;
1253 entry->c.ops = &snd_mixart_proc_ops_BA0;
1254 entry->size = MIXART_BA0_SIZE;
1255 }
1256 if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1257 entry->content = SNDRV_INFO_CONTENT_DATA;
1258 entry->private_data = chip->mgr;
1259 entry->c.ops = &snd_mixart_proc_ops_BA1;
1260 entry->size = MIXART_BA1_SIZE;
1261 }
1262 }
1263 /* end of proc interface */
1264
1265
1266 /*
1267 * probe function - creates the card manager
1268 */
1269 static int __devinit snd_mixart_probe(struct pci_dev *pci,
1270 const struct pci_device_id *pci_id)
1271 {
1272 static int dev;
1273 struct mixart_mgr *mgr;
1274 unsigned int i;
1275 int err;
1276 size_t size;
1277
1278 /*
1279 */
1280 if (dev >= SNDRV_CARDS)
1281 return -ENODEV;
1282 if (! enable[dev]) {
1283 dev++;
1284 return -ENOENT;
1285 }
1286
1287 /* enable PCI device */
1288 if ((err = pci_enable_device(pci)) < 0)
1289 return err;
1290 pci_set_master(pci);
1291
1292 /* check if we can restrict PCI DMA transfers to 32 bits */
1293 if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1294 snd_printk(KERN_ERR "architecture does not support 32bit PCI busmaster DMA\n");
1295 pci_disable_device(pci);
1296 return -ENXIO;
1297 }
1298
1299 /*
1300 */
1301 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1302 if (! mgr) {
1303 pci_disable_device(pci);
1304 return -ENOMEM;
1305 }
1306
1307 mgr->pci = pci;
1308 mgr->irq = -1;
1309
1310 /* resource assignment */
1311 if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
1312 kfree(mgr);
1313 pci_disable_device(pci);
1314 return err;
1315 }
1316 for (i = 0; i < 2; i++) {
1317 mgr->mem[i].phys = pci_resource_start(pci, i);
1318 mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1319 if (!mgr->mem[i].virt) {
1320 printk(KERN_ERR "unable to remap resource 0x%lx\n",
1321 mgr->mem[i].phys);
1322 snd_mixart_free(mgr);
1323 return -EBUSY;
1324 }
1325 }
1326
1327 if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED,
1328 CARD_NAME, mgr)) {
1329 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1330 snd_mixart_free(mgr);
1331 return -EBUSY;
1332 }
1333 mgr->irq = pci->irq;
1334
1335 sprintf(mgr->shortname, "Digigram miXart");
1336 sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq);
1337
1338 /* ISR spinlock */
1339 spin_lock_init(&mgr->lock);
1340
1341 /* init mailbox */
1342 mgr->msg_fifo_readptr = 0;
1343 mgr->msg_fifo_writeptr = 0;
1344
1345 spin_lock_init(&mgr->msg_lock);
1346 mutex_init(&mgr->msg_mutex);
1347 init_waitqueue_head(&mgr->msg_sleep);
1348 atomic_set(&mgr->msg_processed, 0);
1349
1350 /* init setup mutex*/
1351 mutex_init(&mgr->setup_mutex);
1352
1353 /* init message taslket */
1354 tasklet_init(&mgr->msg_taskq, snd_mixart_msg_tasklet, (unsigned long) mgr);
1355
1356 /* card assignment */
1357 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1358 for (i = 0; i < mgr->num_cards; i++) {
1359 struct snd_card *card;
1360 char tmpid[16];
1361 int idx;
1362
1363 if (index[dev] < 0)
1364 idx = index[dev];
1365 else
1366 idx = index[dev] + i;
1367 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1368 card = snd_card_new(idx, tmpid, THIS_MODULE, 0);
1369
1370 if (! card) {
1371 snd_printk(KERN_ERR "cannot allocate the card %d\n", i);
1372 snd_mixart_free(mgr);
1373 return -ENOMEM;
1374 }
1375
1376 strcpy(card->driver, CARD_NAME);
1377 sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1378 sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1379
1380 if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1381 snd_card_free(card);
1382 snd_mixart_free(mgr);
1383 return err;
1384 }
1385
1386 if(i==0) {
1387 /* init proc interface only for chip0 */
1388 snd_mixart_proc_init(mgr->chip[i]);
1389 }
1390
1391 if ((err = snd_card_register(card)) < 0) {
1392 snd_mixart_free(mgr);
1393 return err;
1394 }
1395 }
1396
1397 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1398 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1399
1400 /* create array of streaminfo */
1401 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1402 sizeof(struct mixart_flowinfo)) );
1403 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1404 size, &mgr->flowinfo) < 0) {
1405 snd_mixart_free(mgr);
1406 return -ENOMEM;
1407 }
1408 /* init streaminfo_array */
1409 memset(mgr->flowinfo.area, 0, size);
1410
1411 /* create array of bufferinfo */
1412 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1413 sizeof(struct mixart_bufferinfo)) );
1414 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1415 size, &mgr->bufferinfo) < 0) {
1416 snd_mixart_free(mgr);
1417 return -ENOMEM;
1418 }
1419 /* init bufferinfo_array */
1420 memset(mgr->bufferinfo.area, 0, size);
1421
1422 /* set up firmware */
1423 err = snd_mixart_setup_firmware(mgr);
1424 if (err < 0) {
1425 snd_mixart_free(mgr);
1426 return err;
1427 }
1428
1429 pci_set_drvdata(pci, mgr);
1430 dev++;
1431 return 0;
1432 }
1433
1434 static void __devexit snd_mixart_remove(struct pci_dev *pci)
1435 {
1436 snd_mixart_free(pci_get_drvdata(pci));
1437 pci_set_drvdata(pci, NULL);
1438 }
1439
1440 static struct pci_driver driver = {
1441 .name = "Digigram miXart",
1442 .id_table = snd_mixart_ids,
1443 .probe = snd_mixart_probe,
1444 .remove = __devexit_p(snd_mixart_remove),
1445 };
1446
1447 static int __init alsa_card_mixart_init(void)
1448 {
1449 return pci_register_driver(&driver);
1450 }
1451
1452 static void __exit alsa_card_mixart_exit(void)
1453 {
1454 pci_unregister_driver(&driver);
1455 }
1456
1457 module_init(alsa_card_mixart_init)
1458 module_exit(alsa_card_mixart_exit)
Support for the Chinese Samsung S3C2440 based development boards