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Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization"
[pv_ops_mirror.git] / sound / pci / mixart / mixart.c
blobac007cec08791fbcd73f8a014257ea5e96377840
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/dma-mapping.h>
29 #include <linux/moduleparam.h>
30 #include <linux/mutex.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 int 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 struct pci_device_id snd_mixart_ids[] = {
65 { 0x1057, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 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 return err;
612 }
613
614 /* allocate buffer */
615 err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
616
617 if (err > 0) {
618 struct mixart_bufferinfo *bufferinfo;
619 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
620 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
621 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
622 }
623
624 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
625 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
626 bufferinfo[i].available_length = subs->runtime->dma_bytes;
627 /* bufferinfo[i].buffer_id is already defined */
628
629 snd_printdd("snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n", i,
630 bufferinfo[i].buffer_address,
631 bufferinfo[i].available_length,
632 subs->number);
633 }
634 mutex_unlock(&mgr->setup_mutex);
635
636 return err;
637 }
638
639 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
640 {
641 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
642 snd_pcm_lib_free_pages(subs);
643 mixart_sync_nonblock_events(chip->mgr);
644 return 0;
645 }
646
647
648
649 /*
650 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
651 */
652 static struct snd_pcm_hardware snd_mixart_analog_caps =
653 {
654 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
655 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
656 SNDRV_PCM_INFO_PAUSE),
657 .formats = ( SNDRV_PCM_FMTBIT_U8 |
658 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
659 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
660 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
661 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
662 .rate_min = 8000,
663 .rate_max = 48000,
664 .channels_min = 1,
665 .channels_max = 2,
666 .buffer_bytes_max = (32*1024),
667 .period_bytes_min = 256, /* 256 frames U8 mono*/
668 .period_bytes_max = (16*1024),
669 .periods_min = 2,
670 .periods_max = (32*1024/256),
671 };
672
673 static struct snd_pcm_hardware snd_mixart_digital_caps =
674 {
675 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
676 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
677 SNDRV_PCM_INFO_PAUSE),
678 .formats = ( SNDRV_PCM_FMTBIT_U8 |
679 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
680 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
681 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
682 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
683 .rate_min = 32000,
684 .rate_max = 48000,
685 .channels_min = 1,
686 .channels_max = 2,
687 .buffer_bytes_max = (32*1024),
688 .period_bytes_min = 256, /* 256 frames U8 mono*/
689 .period_bytes_max = (16*1024),
690 .periods_min = 2,
691 .periods_max = (32*1024/256),
692 };
693
694
695 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
696 {
697 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
698 struct mixart_mgr *mgr = chip->mgr;
699 struct snd_pcm_runtime *runtime = subs->runtime;
700 struct snd_pcm *pcm = subs->pcm;
701 struct mixart_stream *stream;
702 struct mixart_pipe *pipe;
703 int err = 0;
704 int pcm_number;
705
706 mutex_lock(&mgr->setup_mutex);
707
708 if ( pcm == chip->pcm ) {
709 pcm_number = MIXART_PCM_ANALOG;
710 runtime->hw = snd_mixart_analog_caps;
711 } else {
712 snd_assert ( pcm == chip->pcm_dig );
713 pcm_number = MIXART_PCM_DIGITAL;
714 runtime->hw = snd_mixart_digital_caps;
715 }
716 snd_printdd("snd_mixart_playback_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
717
718 /* get stream info */
719 stream = &(chip->playback_stream[pcm_number][subs->number]);
720
721 if (stream->status != MIXART_STREAM_STATUS_FREE){
722 /* streams in use */
723 snd_printk(KERN_ERR "snd_mixart_playback_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
724 err = -EBUSY;
725 goto _exit_open;
726 }
727
728 /* get pipe pointer (out pipe) */
729 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
730
731 if (pipe == NULL) {
732 err = -EINVAL;
733 goto _exit_open;
734 }
735
736 /* start the pipe if necessary */
737 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
738 if( err < 0 ) {
739 snd_printk(KERN_ERR "error starting pipe!\n");
740 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
741 err = -EINVAL;
742 goto _exit_open;
743 }
744
745 stream->pipe = pipe;
746 stream->pcm_number = pcm_number;
747 stream->status = MIXART_STREAM_STATUS_OPEN;
748 stream->substream = subs;
749 stream->channels = 0; /* not configured yet */
750
751 runtime->private_data = stream;
752
753 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
754 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
755
756 /* if a sample rate is already used, another stream cannot change */
757 if(mgr->ref_count_rate++) {
758 if(mgr->sample_rate) {
759 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
760 }
761 }
762
763 _exit_open:
764 mutex_unlock(&mgr->setup_mutex);
765
766 return err;
767 }
768
769
770 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
771 {
772 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
773 struct mixart_mgr *mgr = chip->mgr;
774 struct snd_pcm_runtime *runtime = subs->runtime;
775 struct snd_pcm *pcm = subs->pcm;
776 struct mixart_stream *stream;
777 struct mixart_pipe *pipe;
778 int err = 0;
779 int pcm_number;
780
781 mutex_lock(&mgr->setup_mutex);
782
783 if ( pcm == chip->pcm ) {
784 pcm_number = MIXART_PCM_ANALOG;
785 runtime->hw = snd_mixart_analog_caps;
786 } else {
787 snd_assert ( pcm == chip->pcm_dig );
788 pcm_number = MIXART_PCM_DIGITAL;
789 runtime->hw = snd_mixart_digital_caps;
790 }
791
792 runtime->hw.channels_min = 2; /* for instance, no mono */
793
794 snd_printdd("snd_mixart_capture_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
795
796 /* get stream info */
797 stream = &(chip->capture_stream[pcm_number]);
798
799 if (stream->status != MIXART_STREAM_STATUS_FREE){
800 /* streams in use */
801 snd_printk(KERN_ERR "snd_mixart_capture_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
802 err = -EBUSY;
803 goto _exit_open;
804 }
805
806 /* get pipe pointer (in pipe) */
807 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
808
809 if (pipe == NULL) {
810 err = -EINVAL;
811 goto _exit_open;
812 }
813
814 /* start the pipe if necessary */
815 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
816 if( err < 0 ) {
817 snd_printk(KERN_ERR "error starting pipe!\n");
818 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
819 err = -EINVAL;
820 goto _exit_open;
821 }
822
823 stream->pipe = pipe;
824 stream->pcm_number = pcm_number;
825 stream->status = MIXART_STREAM_STATUS_OPEN;
826 stream->substream = subs;
827 stream->channels = 0; /* not configured yet */
828
829 runtime->private_data = stream;
830
831 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
832 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
833
834 /* if a sample rate is already used, another stream cannot change */
835 if(mgr->ref_count_rate++) {
836 if(mgr->sample_rate) {
837 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
838 }
839 }
840
841 _exit_open:
842 mutex_unlock(&mgr->setup_mutex);
843
844 return err;
845 }
846
847
848
849 static int snd_mixart_close(struct snd_pcm_substream *subs)
850 {
851 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
852 struct mixart_mgr *mgr = chip->mgr;
853 struct mixart_stream *stream = subs->runtime->private_data;
854
855 mutex_lock(&mgr->setup_mutex);
856
857 snd_printdd("snd_mixart_close C%d/P%d/Sub%d\n", chip->chip_idx, stream->pcm_number, subs->number);
858
859 /* sample rate released */
860 if(--mgr->ref_count_rate == 0) {
861 mgr->sample_rate = 0;
862 }
863
864 /* delete pipe */
865 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
866
867 snd_printk(KERN_ERR "error snd_mixart_kill_ref_pipe C%dP%d\n", chip->chip_idx, stream->pcm_number);
868 }
869
870 stream->pipe = NULL;
871 stream->status = MIXART_STREAM_STATUS_FREE;
872 stream->substream = NULL;
873
874 mutex_unlock(&mgr->setup_mutex);
875 return 0;
876 }
877
878
879 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
880 {
881 struct snd_pcm_runtime *runtime = subs->runtime;
882 struct mixart_stream *stream = runtime->private_data;
883
884 return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
885 }
886
887
888
889 static struct snd_pcm_ops snd_mixart_playback_ops = {
890 .open = snd_mixart_playback_open,
891 .close = snd_mixart_close,
892 .ioctl = snd_pcm_lib_ioctl,
893 .prepare = snd_mixart_prepare,
894 .hw_params = snd_mixart_hw_params,
895 .hw_free = snd_mixart_hw_free,
896 .trigger = snd_mixart_trigger,
897 .pointer = snd_mixart_stream_pointer,
898 };
899
900 static struct snd_pcm_ops snd_mixart_capture_ops = {
901 .open = snd_mixart_capture_open,
902 .close = snd_mixart_close,
903 .ioctl = snd_pcm_lib_ioctl,
904 .prepare = snd_mixart_prepare,
905 .hw_params = snd_mixart_hw_params,
906 .hw_free = snd_mixart_hw_free,
907 .trigger = snd_mixart_trigger,
908 .pointer = snd_mixart_stream_pointer,
909 };
910
911 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
912 {
913 #if 0
914 struct snd_pcm_substream *subs;
915 int stream;
916
917 for (stream = 0; stream < 2; stream++) {
918 int idx = 0;
919 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
920 /* set up the unique device id with the chip index */
921 subs->dma_device.id = subs->pcm->device << 16 |
922 subs->stream << 8 | (subs->number + 1) |
923 (chip->chip_idx + 1) << 24;
924 }
925 #endif
926 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
927 snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024);
928 }
929
930 /*
931 */
932 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
933 {
934 int err;
935 struct snd_pcm *pcm;
936 char name[32];
937
938 sprintf(name, "miXart analog %d", chip->chip_idx);
939 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
940 MIXART_PLAYBACK_STREAMS,
941 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
942 snd_printk(KERN_ERR "cannot create the analog pcm %d\n", chip->chip_idx);
943 return err;
944 }
945
946 pcm->private_data = chip;
947
948 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
949 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
950
951 pcm->info_flags = 0;
952 strcpy(pcm->name, name);
953
954 preallocate_buffers(chip, pcm);
955
956 chip->pcm = pcm;
957 return 0;
958 }
959
960
961 /*
962 */
963 static int snd_mixart_pcm_digital(struct snd_mixart *chip)
964 {
965 int err;
966 struct snd_pcm *pcm;
967 char name[32];
968
969 sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
970 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
971 MIXART_PLAYBACK_STREAMS,
972 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
973 snd_printk(KERN_ERR "cannot create the digital pcm %d\n", chip->chip_idx);
974 return err;
975 }
976
977 pcm->private_data = chip;
978
979 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
980 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
981
982 pcm->info_flags = 0;
983 strcpy(pcm->name, name);
984
985 preallocate_buffers(chip, pcm);
986
987 chip->pcm_dig = pcm;
988 return 0;
989 }
990
991 static int snd_mixart_chip_free(struct snd_mixart *chip)
992 {
993 kfree(chip);
994 return 0;
995 }
996
997 static int snd_mixart_chip_dev_free(struct snd_device *device)
998 {
999 struct snd_mixart *chip = device->device_data;
1000 return snd_mixart_chip_free(chip);
1001 }
1002
1003
1004 /*
1005 */
1006 static int __devinit snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1007 {
1008 int err;
1009 struct snd_mixart *chip;
1010 static struct snd_device_ops ops = {
1011 .dev_free = snd_mixart_chip_dev_free,
1012 };
1013
1014 mgr->chip[idx] = chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1015 if (! chip) {
1016 snd_printk(KERN_ERR "cannot allocate chip\n");
1017 return -ENOMEM;
1018 }
1019
1020 chip->card = card;
1021 chip->chip_idx = idx;
1022 chip->mgr = mgr;
1023
1024 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1025 snd_mixart_chip_free(chip);
1026 return err;
1027 }
1028
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 = ioremap_nocache(mgr->mem[i].phys,
1319 pci_resource_len(pci, i));
1320 }
1321
1322 if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED,
1323 CARD_NAME, mgr)) {
1324 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1325 snd_mixart_free(mgr);
1326 return -EBUSY;
1327 }
1328 mgr->irq = pci->irq;
1329
1330 sprintf(mgr->shortname, "Digigram miXart");
1331 sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq);
1332
1333 /* ISR spinlock */
1334 spin_lock_init(&mgr->lock);
1335
1336 /* init mailbox */
1337 mgr->msg_fifo_readptr = 0;
1338 mgr->msg_fifo_writeptr = 0;
1339
1340 spin_lock_init(&mgr->msg_lock);
1341 mutex_init(&mgr->msg_mutex);
1342 init_waitqueue_head(&mgr->msg_sleep);
1343 atomic_set(&mgr->msg_processed, 0);
1344
1345 /* init setup mutex*/
1346 mutex_init(&mgr->setup_mutex);
1347
1348 /* init message taslket */
1349 tasklet_init(&mgr->msg_taskq, snd_mixart_msg_tasklet, (unsigned long) mgr);
1350
1351 /* card assignment */
1352 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1353 for (i = 0; i < mgr->num_cards; i++) {
1354 struct snd_card *card;
1355 char tmpid[16];
1356 int idx;
1357
1358 if (index[dev] < 0)
1359 idx = index[dev];
1360 else
1361 idx = index[dev] + i;
1362 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1363 card = snd_card_new(idx, tmpid, THIS_MODULE, 0);
1364
1365 if (! card) {
1366 snd_printk(KERN_ERR "cannot allocate the card %d\n", i);
1367 snd_mixart_free(mgr);
1368 return -ENOMEM;
1369 }
1370
1371 strcpy(card->driver, CARD_NAME);
1372 sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1373 sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1374
1375 if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1376 snd_mixart_free(mgr);
1377 return err;
1378 }
1379
1380 if(i==0) {
1381 /* init proc interface only for chip0 */
1382 snd_mixart_proc_init(mgr->chip[i]);
1383 }
1384
1385 if ((err = snd_card_register(card)) < 0) {
1386 snd_mixart_free(mgr);
1387 return err;
1388 }
1389 }
1390
1391 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1392 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1393
1394 /* create array of streaminfo */
1395 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1396 sizeof(struct mixart_flowinfo)) );
1397 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1398 size, &mgr->flowinfo) < 0) {
1399 snd_mixart_free(mgr);
1400 return -ENOMEM;
1401 }
1402 /* init streaminfo_array */
1403 memset(mgr->flowinfo.area, 0, size);
1404
1405 /* create array of bufferinfo */
1406 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1407 sizeof(struct mixart_bufferinfo)) );
1408 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1409 size, &mgr->bufferinfo) < 0) {
1410 snd_mixart_free(mgr);
1411 return -ENOMEM;
1412 }
1413 /* init bufferinfo_array */
1414 memset(mgr->bufferinfo.area, 0, size);
1415
1416 /* set up firmware */
1417 err = snd_mixart_setup_firmware(mgr);
1418 if (err < 0) {
1419 snd_mixart_free(mgr);
1420 return err;
1421 }
1422
1423 pci_set_drvdata(pci, mgr);
1424 dev++;
1425 return 0;
1426 }
1427
1428 static void __devexit snd_mixart_remove(struct pci_dev *pci)
1429 {
1430 snd_mixart_free(pci_get_drvdata(pci));
1431 pci_set_drvdata(pci, NULL);
1432 }
1433
1434 static struct pci_driver driver = {
1435 .name = "Digigram miXart",
1436 .id_table = snd_mixart_ids,
1437 .probe = snd_mixart_probe,
1438 .remove = __devexit_p(snd_mixart_remove),
1439 };
1440
1441 static int __init alsa_card_mixart_init(void)
1442 {
1443 return pci_register_driver(&driver);
1444 }
1445
1446 static void __exit alsa_card_mixart_exit(void)
1447 {
1448 pci_unregister_driver(&driver);
1449 }
1450
1451 module_init(alsa_card_mixart_init)
1452 module_exit(alsa_card_mixart_exit)
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