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sched: Re-add lost cpu_allowed check to sched_fair.c::select_task_rq_fair()
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / pci / mixart / mixart.c
bloba83d1968a8450f49816add1bf2bbc2ffbba962c6
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 { PCI_VDEVICE(MOTOROLA, 0x0003), 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 mutex_unlock(&mgr->setup_mutex);
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 |
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 |
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_BUG_ON(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_BUG_ON(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 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 mgr->chip[idx] = chip;
1030 snd_card_set_dev(card, &mgr->pci->dev);
1031
1032 return 0;
1033 }
1034
1035 int snd_mixart_create_pcm(struct snd_mixart* chip)
1036 {
1037 int err;
1038
1039 err = snd_mixart_pcm_analog(chip);
1040 if (err < 0)
1041 return err;
1042
1043 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1044
1045 err = snd_mixart_pcm_digital(chip);
1046 if (err < 0)
1047 return err;
1048 }
1049 return err;
1050 }
1051
1052
1053 /*
1054 * release all the cards assigned to a manager instance
1055 */
1056 static int snd_mixart_free(struct mixart_mgr *mgr)
1057 {
1058 unsigned int i;
1059
1060 for (i = 0; i < mgr->num_cards; i++) {
1061 if (mgr->chip[i])
1062 snd_card_free(mgr->chip[i]->card);
1063 }
1064
1065 /* stop mailbox */
1066 snd_mixart_exit_mailbox(mgr);
1067
1068 /* release irq */
1069 if (mgr->irq >= 0)
1070 free_irq(mgr->irq, mgr);
1071
1072 /* reset board if some firmware was loaded */
1073 if(mgr->dsp_loaded) {
1074 snd_mixart_reset_board(mgr);
1075 snd_printdd("reset miXart !\n");
1076 }
1077
1078 /* release the i/o ports */
1079 for (i = 0; i < 2; i++) {
1080 if (mgr->mem[i].virt)
1081 iounmap(mgr->mem[i].virt);
1082 }
1083 pci_release_regions(mgr->pci);
1084
1085 /* free flowarray */
1086 if(mgr->flowinfo.area) {
1087 snd_dma_free_pages(&mgr->flowinfo);
1088 mgr->flowinfo.area = NULL;
1089 }
1090 /* free bufferarray */
1091 if(mgr->bufferinfo.area) {
1092 snd_dma_free_pages(&mgr->bufferinfo);
1093 mgr->bufferinfo.area = NULL;
1094 }
1095
1096 pci_disable_device(mgr->pci);
1097 kfree(mgr);
1098 return 0;
1099 }
1100
1101 /*
1102 * proc interface
1103 */
1104 static long long snd_mixart_BA0_llseek(struct snd_info_entry *entry,
1105 void *private_file_data,
1106 struct file *file,
1107 long long offset,
1108 int orig)
1109 {
1110 offset = offset & ~3; /* 4 bytes aligned */
1111
1112 switch(orig) {
1113 case SEEK_SET:
1114 file->f_pos = offset;
1115 break;
1116 case SEEK_CUR:
1117 file->f_pos += offset;
1118 break;
1119 case SEEK_END: /* offset is negative */
1120 file->f_pos = MIXART_BA0_SIZE + offset;
1121 break;
1122 default:
1123 return -EINVAL;
1124 }
1125 if(file->f_pos > MIXART_BA0_SIZE)
1126 file->f_pos = MIXART_BA0_SIZE;
1127 return file->f_pos;
1128 }
1129
1130 static long long snd_mixart_BA1_llseek(struct snd_info_entry *entry,
1131 void *private_file_data,
1132 struct file *file,
1133 long long offset,
1134 int orig)
1135 {
1136 offset = offset & ~3; /* 4 bytes aligned */
1137
1138 switch(orig) {
1139 case SEEK_SET:
1140 file->f_pos = offset;
1141 break;
1142 case SEEK_CUR:
1143 file->f_pos += offset;
1144 break;
1145 case SEEK_END: /* offset is negative */
1146 file->f_pos = MIXART_BA1_SIZE + offset;
1147 break;
1148 default:
1149 return -EINVAL;
1150 }
1151 if(file->f_pos > MIXART_BA1_SIZE)
1152 file->f_pos = MIXART_BA1_SIZE;
1153 return file->f_pos;
1154 }
1155
1156 /*
1157 mixart_BA0 proc interface for BAR 0 - read callback
1158 */
1159 static long snd_mixart_BA0_read(struct snd_info_entry *entry, void *file_private_data,
1160 struct file *file, char __user *buf,
1161 unsigned long count, unsigned long pos)
1162 {
1163 struct mixart_mgr *mgr = entry->private_data;
1164
1165 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1166 if(count <= 0)
1167 return 0;
1168 if(pos + count > MIXART_BA0_SIZE)
1169 count = (long)(MIXART_BA0_SIZE - pos);
1170 if(copy_to_user_fromio(buf, MIXART_MEM( mgr, pos ), count))
1171 return -EFAULT;
1172 return count;
1173 }
1174
1175 /*
1176 mixart_BA1 proc interface for BAR 1 - read callback
1177 */
1178 static long snd_mixart_BA1_read(struct snd_info_entry *entry, void *file_private_data,
1179 struct file *file, char __user *buf,
1180 unsigned long count, unsigned long pos)
1181 {
1182 struct mixart_mgr *mgr = entry->private_data;
1183
1184 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1185 if(count <= 0)
1186 return 0;
1187 if(pos + count > MIXART_BA1_SIZE)
1188 count = (long)(MIXART_BA1_SIZE - pos);
1189 if(copy_to_user_fromio(buf, MIXART_REG( mgr, pos ), count))
1190 return -EFAULT;
1191 return count;
1192 }
1193
1194 static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1195 .read = snd_mixart_BA0_read,
1196 .llseek = snd_mixart_BA0_llseek
1197 };
1198
1199 static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1200 .read = snd_mixart_BA1_read,
1201 .llseek = snd_mixart_BA1_llseek
1202 };
1203
1204
1205 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1206 struct snd_info_buffer *buffer)
1207 {
1208 struct snd_mixart *chip = entry->private_data;
1209 u32 ref;
1210
1211 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1212
1213 /* stats available when embedded OS is running */
1214 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1215 snd_iprintf(buffer, "- hardware -\n");
1216 switch (chip->mgr->board_type ) {
1217 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1218 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1219 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1220 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1221 }
1222
1223 snd_iprintf(buffer, "- system load -\n");
1224
1225 /* get perf reference */
1226
1227 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1228
1229 if (ref) {
1230 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1231 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1232 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1233
1234 snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
1235 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
1236 snd_iprintf(buffer, "\tinterrups handling : %d\n\n", interr);
1237 }
1238 } /* endif elf loaded */
1239 }
1240
1241 static void __devinit snd_mixart_proc_init(struct snd_mixart *chip)
1242 {
1243 struct snd_info_entry *entry;
1244
1245 /* text interface to read perf and temp meters */
1246 if (! snd_card_proc_new(chip->card, "board_info", &entry)) {
1247 entry->private_data = chip;
1248 entry->c.text.read = snd_mixart_proc_read;
1249 }
1250
1251 if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1252 entry->content = SNDRV_INFO_CONTENT_DATA;
1253 entry->private_data = chip->mgr;
1254 entry->c.ops = &snd_mixart_proc_ops_BA0;
1255 entry->size = MIXART_BA0_SIZE;
1256 }
1257 if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1258 entry->content = SNDRV_INFO_CONTENT_DATA;
1259 entry->private_data = chip->mgr;
1260 entry->c.ops = &snd_mixart_proc_ops_BA1;
1261 entry->size = MIXART_BA1_SIZE;
1262 }
1263 }
1264 /* end of proc interface */
1265
1266
1267 /*
1268 * probe function - creates the card manager
1269 */
1270 static int __devinit snd_mixart_probe(struct pci_dev *pci,
1271 const struct pci_device_id *pci_id)
1272 {
1273 static int dev;
1274 struct mixart_mgr *mgr;
1275 unsigned int i;
1276 int err;
1277 size_t size;
1278
1279 /*
1280 */
1281 if (dev >= SNDRV_CARDS)
1282 return -ENODEV;
1283 if (! enable[dev]) {
1284 dev++;
1285 return -ENOENT;
1286 }
1287
1288 /* enable PCI device */
1289 if ((err = pci_enable_device(pci)) < 0)
1290 return err;
1291 pci_set_master(pci);
1292
1293 /* check if we can restrict PCI DMA transfers to 32 bits */
1294 if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1295 snd_printk(KERN_ERR "architecture does not support 32bit PCI busmaster DMA\n");
1296 pci_disable_device(pci);
1297 return -ENXIO;
1298 }
1299
1300 /*
1301 */
1302 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1303 if (! mgr) {
1304 pci_disable_device(pci);
1305 return -ENOMEM;
1306 }
1307
1308 mgr->pci = pci;
1309 mgr->irq = -1;
1310
1311 /* resource assignment */
1312 if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
1313 kfree(mgr);
1314 pci_disable_device(pci);
1315 return err;
1316 }
1317 for (i = 0; i < 2; i++) {
1318 mgr->mem[i].phys = pci_resource_start(pci, i);
1319 mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1320 if (!mgr->mem[i].virt) {
1321 printk(KERN_ERR "unable to remap resource 0x%lx\n",
1322 mgr->mem[i].phys);
1323 snd_mixart_free(mgr);
1324 return -EBUSY;
1325 }
1326 }
1327
1328 if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED,
1329 CARD_NAME, mgr)) {
1330 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1331 snd_mixart_free(mgr);
1332 return -EBUSY;
1333 }
1334 mgr->irq = pci->irq;
1335
1336 sprintf(mgr->shortname, "Digigram miXart");
1337 sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq);
1338
1339 /* ISR spinlock */
1340 spin_lock_init(&mgr->lock);
1341
1342 /* init mailbox */
1343 mgr->msg_fifo_readptr = 0;
1344 mgr->msg_fifo_writeptr = 0;
1345
1346 spin_lock_init(&mgr->msg_lock);
1347 mutex_init(&mgr->msg_mutex);
1348 init_waitqueue_head(&mgr->msg_sleep);
1349 atomic_set(&mgr->msg_processed, 0);
1350
1351 /* init setup mutex*/
1352 mutex_init(&mgr->setup_mutex);
1353
1354 /* init message taslket */
1355 tasklet_init(&mgr->msg_taskq, snd_mixart_msg_tasklet, (unsigned long) mgr);
1356
1357 /* card assignment */
1358 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1359 for (i = 0; i < mgr->num_cards; i++) {
1360 struct snd_card *card;
1361 char tmpid[16];
1362 int idx;
1363
1364 if (index[dev] < 0)
1365 idx = index[dev];
1366 else
1367 idx = index[dev] + i;
1368 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1369 err = snd_card_create(idx, tmpid, THIS_MODULE, 0, &card);
1370
1371 if (err < 0) {
1372 snd_printk(KERN_ERR "cannot allocate the card %d\n", i);
1373 snd_mixart_free(mgr);
1374 return err;
1375 }
1376
1377 strcpy(card->driver, CARD_NAME);
1378 sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1379 sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1380
1381 if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1382 snd_card_free(card);
1383 snd_mixart_free(mgr);
1384 return err;
1385 }
1386
1387 if(i==0) {
1388 /* init proc interface only for chip0 */
1389 snd_mixart_proc_init(mgr->chip[i]);
1390 }
1391
1392 if ((err = snd_card_register(card)) < 0) {
1393 snd_mixart_free(mgr);
1394 return err;
1395 }
1396 }
1397
1398 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1399 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1400
1401 /* create array of streaminfo */
1402 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1403 sizeof(struct mixart_flowinfo)) );
1404 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1405 size, &mgr->flowinfo) < 0) {
1406 snd_mixart_free(mgr);
1407 return -ENOMEM;
1408 }
1409 /* init streaminfo_array */
1410 memset(mgr->flowinfo.area, 0, size);
1411
1412 /* create array of bufferinfo */
1413 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1414 sizeof(struct mixart_bufferinfo)) );
1415 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1416 size, &mgr->bufferinfo) < 0) {
1417 snd_mixart_free(mgr);
1418 return -ENOMEM;
1419 }
1420 /* init bufferinfo_array */
1421 memset(mgr->bufferinfo.area, 0, size);
1422
1423 /* set up firmware */
1424 err = snd_mixart_setup_firmware(mgr);
1425 if (err < 0) {
1426 snd_mixart_free(mgr);
1427 return err;
1428 }
1429
1430 pci_set_drvdata(pci, mgr);
1431 dev++;
1432 return 0;
1433 }
1434
1435 static void __devexit snd_mixart_remove(struct pci_dev *pci)
1436 {
1437 snd_mixart_free(pci_get_drvdata(pci));
1438 pci_set_drvdata(pci, NULL);
1439 }
1440
1441 static struct pci_driver driver = {
1442 .name = "Digigram miXart",
1443 .id_table = snd_mixart_ids,
1444 .probe = snd_mixart_probe,
1445 .remove = __devexit_p(snd_mixart_remove),
1446 };
1447
1448 static int __init alsa_card_mixart_init(void)
1449 {
1450 return pci_register_driver(&driver);
1451 }
1452
1453 static void __exit alsa_card_mixart_exit(void)
1454 {
1455 pci_unregister_driver(&driver);
1456 }
1457
1458 module_init(alsa_card_mixart_init)
1459 module_exit(alsa_card_mixart_exit)
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree