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Merge tag 'v3.10.97' into update
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / pci / saa7134 / saa7134-alsa.c
CommitLineData
5f7591c0 1/*
bd15eba3 2 * SAA713x ALSA support for V4L
5f7591c0 3 *
bd15eba3
RC		 4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, version 2
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
5f7591c0 16 *
5f7591c0
NS		 17 */
18
bd15eba3
RC		 19#include <linux/init.h>
20#include <linux/slab.h>
21#include <linux/time.h>
22#include <linux/wait.h>
bd15eba3 23#include <linux/module.h>
5f7591c0 24#include <sound/core.h>
5f7591c0 25#include <sound/control.h>
bd15eba3 26#include <sound/pcm.h>
d5ee43af 27#include <sound/pcm_params.h>
5f7591c0 28#include <sound/initval.h>
871242b9 29#include <linux/interrupt.h>
5f7591c0
NS		 30
31#include "saa7134.h"
32#include "saa7134-reg.h"
33
ff699e6b 34static unsigned int debug;
79dd0c69
RC		 35module_param(debug, int, 0644);
36MODULE_PARM_DESC(debug,"enable debug messages [alsa]");
37
b2c15ea9
RC		 38/*
39 * Configuration macros
40 */
41
bd15eba3 42/* defaults */
736dadaa 43#define MIXER_ADDR_UNSELECTED -1
b2c15ea9
RC		 44#define MIXER_ADDR_TVTUNER 0
45#define MIXER_ADDR_LINE1 1
46#define MIXER_ADDR_LINE2 2
47#define MIXER_ADDR_LAST 2
5f7591c0 48
674434c6 49
bd15eba3
RC		 50static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
51static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
ede22415 52static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
bd15eba3 53
b54134be 54module_param_array(index, int, NULL, 0444);
ede22415 55module_param_array(enable, int, NULL, 0444);
b54134be 56MODULE_PARM_DESC(index, "Index value for SAA7134 capture interface(s).");
ede22415 57MODULE_PARM_DESC(enable, "Enable (or not) the SAA7134 capture interface(s).");
b54134be 58
79dd0c69 59#define dprintk(fmt, arg...) if (debug) \
f85c657f 60 printk(KERN_DEBUG "%s/alsa: " fmt, dev->name , ##arg)
674434c6
MCC		 61
62
bd15eba3 63
b2c15ea9
RC		 64/*
65 * Main chip structure
66 */
674434c6 67
bd15eba3 68typedef struct snd_card_saa7134 {
f7cbb7fc 69 struct snd_card *card;
bd15eba3
RC		 70 spinlock_t mixer_lock;
71 int mixer_volume[MIXER_ADDR_LAST+1][2];
736dadaa
OJ		 72 int capture_source_addr;
73 int capture_source[2];
74 struct snd_kcontrol *capture_ctl[MIXER_ADDR_LAST+1];
4ac97914 75 struct pci_dev *pci;
4aabf633 76 struct saa7134_dev *dev;
bd15eba3 77
4ac97914 78 unsigned long iobase;
aac0ca6a
RB		 79 s16 irq;
80 u16 mute_was_on;
bd15eba3
RC		 81
82 spinlock_t lock;
83} snd_card_saa7134_t;
84
07eef6ce 85
b2c15ea9
RC		 86/*
87 * PCM structure
88 */
89
bd15eba3 90typedef struct snd_card_saa7134_pcm {
4aabf633 91 struct saa7134_dev *dev;
bd15eba3
RC		 92
93 spinlock_t lock;
4aabf633 94
f7cbb7fc 95 struct snd_pcm_substream *substream;
bd15eba3 96} snd_card_saa7134_pcm_t;
5f7591c0 97
f7cbb7fc 98static struct snd_card *snd_saa7134_cards[SNDRV_CARDS];
5f7591c0 99
79dd0c69 100
b2c15ea9
RC		 101/*
102 * saa7134 DMA audio stop
103 *
104 * Called when the capture device is released or the buffer overflows
105 *
c817e763 106 * - Copied verbatim from saa7134-oss's dsp_dma_stop.
b2c15ea9
RC		 107 *
108 */
109
bd15eba3
RC		 110static void saa7134_dma_stop(struct saa7134_dev *dev)
111{
b54134be
RC		 112 dev->dmasound.dma_blk = -1;
113 dev->dmasound.dma_running = 0;
4ac97914 114 saa7134_set_dmabits(dev);
bd15eba3 115}
5f7591c0 116
b2c15ea9
RC		 117/*
118 * saa7134 DMA audio start
119 *
120 * Called when preparing the capture device for use
121 *
c817e763 122 * - Copied verbatim from saa7134-oss's dsp_dma_start.
b2c15ea9
RC		 123 *
124 */
125
bd15eba3
RC		 126static void saa7134_dma_start(struct saa7134_dev *dev)
127{
b54134be
RC		 128 dev->dmasound.dma_blk = 0;
129 dev->dmasound.dma_running = 1;
4ac97914 130 saa7134_set_dmabits(dev);
bd15eba3 131}
5f7591c0 132
b2c15ea9
RC		 133/*
134 * saa7134 audio DMA IRQ handler
135 *
136 * Called whenever we get an SAA7134_IRQ_REPORT_DONE_RA3 interrupt
137 * Handles shifting between the 2 buffers, manages the read counters,
138 * and notifies ALSA when periods elapse
139 *
140 * - Mostly copied from saa7134-oss's saa7134_irq_oss_done.
141 *
142 */
143
943a4902
AB		 144static void saa7134_irq_alsa_done(struct saa7134_dev *dev,
145 unsigned long status)
bd15eba3
RC		 146{
147 int next_blk, reg = 0;
5f7591c0 148
bd15eba3 149 spin_lock(&dev->slock);
b54134be 150 if (UNSET == dev->dmasound.dma_blk) {
bd15eba3
RC		 151 dprintk("irq: recording stopped\n");
152 goto done;
153 }
154 if (0 != (status & 0x0f000000))
155 dprintk("irq: lost %ld\n", (status >> 24) & 0x0f);
156 if (0 == (status & 0x10000000)) {
157 /* odd */
b54134be 158 if (0 == (dev->dmasound.dma_blk & 0x01))
bd15eba3
RC		 159 reg = SAA7134_RS_BA1(6);
160 } else {
161 /* even */
b54134be 162 if (1 == (dev->dmasound.dma_blk & 0x01))
bd15eba3
RC		 163 reg = SAA7134_RS_BA2(6);
164 }
165 if (0 == reg) {
166 dprintk("irq: field oops [%s]\n",
167 (status & 0x10000000) ? "even" : "odd");
168 goto done;
169 }
5f7591c0 170
b54134be
RC		 171 if (dev->dmasound.read_count >= dev->dmasound.blksize * (dev->dmasound.blocks-2)) {
172 dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count,
173 dev->dmasound.bufsize, dev->dmasound.blocks);
d5ee43af 174 spin_unlock(&dev->slock);
b534f8f9 175 snd_pcm_stream_lock(dev->dmasound.substream);
b54134be 176 snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN);
b534f8f9 177 snd_pcm_stream_unlock(dev->dmasound.substream);
d5ee43af 178 return;
bd15eba3 179 }
5f7591c0 180
4ac97914 181 /* next block addr */
b54134be
RC		 182 next_blk = (dev->dmasound.dma_blk + 2) % dev->dmasound.blocks;
183 saa_writel(reg,next_blk * dev->dmasound.blksize);
79dd0c69 184 if (debug > 2)
4ac97914
MCC		 185 dprintk("irq: ok, %s, next_blk=%d, addr=%x, blocks=%u, size=%u, read=%u\n",
186 (status & 0x10000000) ? "even" : "odd ", next_blk,
b54134be 187 next_blk * dev->dmasound.blksize, dev->dmasound.blocks, dev->dmasound.blksize, dev->dmasound.read_count);
5f7591c0 188
4ac97914 189 /* update status & wake waiting readers */
b54134be
RC		 190 dev->dmasound.dma_blk = (dev->dmasound.dma_blk + 1) % dev->dmasound.blocks;
191 dev->dmasound.read_count += dev->dmasound.blksize;
5f7591c0 192
b54134be 193 dev->dmasound.recording_on = reg;
5f7591c0 194
b54134be 195 if (dev->dmasound.read_count >= snd_pcm_lib_period_bytes(dev->dmasound.substream)) {
4ac97914 196 spin_unlock(&dev->slock);
b54134be 197 snd_pcm_period_elapsed(dev->dmasound.substream);
4ac97914 198 spin_lock(&dev->slock);
bd15eba3 199 }
4aabf633 200
bd15eba3 201 done:
4ac97914 202 spin_unlock(&dev->slock);
5f7591c0 203
bd15eba3 204}
5f7591c0 205
79dd0c69
RC		 206/*
207 * IRQ request handler
208 *
209 * Runs along with saa7134's IRQ handler, discards anything that isn't
210 * DMA sound
211 *
212 */
213
7d12e780 214static irqreturn_t saa7134_alsa_irq(int irq, void *dev_id)
79dd0c69 215{
afd1a0c9
MCC		 216 struct saa7134_dmasound *dmasound = dev_id;
217 struct saa7134_dev *dev = dmasound->priv_data;
4aabf633 218
79dd0c69
RC		 219 unsigned long report, status;
220 int loop, handled = 0;
221
222 for (loop = 0; loop < 10; loop++) {
223 report = saa_readl(SAA7134_IRQ_REPORT);
224 status = saa_readl(SAA7134_IRQ_STATUS);
225
226 if (report & SAA7134_IRQ_REPORT_DONE_RA3) {
227 handled = 1;
843b1378
HL		 228 saa_writel(SAA7134_IRQ_REPORT,
229 SAA7134_IRQ_REPORT_DONE_RA3);
79dd0c69
RC		 230 saa7134_irq_alsa_done(dev, status);
231 } else {
232 goto out;
233 }
234 }
235
236 if (loop == 10) {
237 dprintk("error! looping IRQ!");
238 }
239
240out:
241 return IRQ_RETVAL(handled);
242}
243
b2c15ea9
RC		 244/*
245 * ALSA capture trigger
246 *
247 * - One of the ALSA capture callbacks.
248 *
249 * Called whenever a capture is started or stopped. Must be defined,
250 * but there's nothing we want to do here
251 *
252 */
5f7591c0 253
f7cbb7fc 254static int snd_card_saa7134_capture_trigger(struct snd_pcm_substream * substream,
bd15eba3 255 int cmd)
5f7591c0 256{
f7cbb7fc 257 struct snd_pcm_runtime *runtime = substream->runtime;
4aabf633
RC		 258 snd_card_saa7134_pcm_t *pcm = runtime->private_data;
259 struct saa7134_dev *dev=pcm->dev;
b54134be
RC		 260 int err = 0;
261
d5ee43af 262 spin_lock(&dev->slock);
c817e763 263 if (cmd == SNDRV_PCM_TRIGGER_START) {
b54134be
RC		 264 /* start dma */
265 saa7134_dma_start(dev);
c817e763 266 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
b54134be
RC		 267 /* stop dma */
268 saa7134_dma_stop(dev);
c817e763
RC		 269 } else {
270 err = -EINVAL;
271 }
d5ee43af 272 spin_unlock(&dev->slock);
b54134be 273
c817e763 274 return err;
5f7591c0
NS		 275}
276
b2c15ea9
RC		 277/*
278 * DMA buffer initialization
279 *
280 * Uses V4L functions to initialize the DMA. Shouldn't be necessary in
281 * ALSA, but I was unable to use ALSA's own DMA, and had to force the
282 * usage of V4L's
283 *
c817e763
RC		 284 * - Copied verbatim from saa7134-oss.
285 *
b2c15ea9
RC		 286 */
287
bd15eba3 288static int dsp_buffer_init(struct saa7134_dev *dev)
5f7591c0 289{
4ac97914
MCC		 290 int err;
291
4aabf633
RC		 292 BUG_ON(!dev->dmasound.bufsize);
293
b54134be
RC		 294 videobuf_dma_init(&dev->dmasound.dma);
295 err = videobuf_dma_init_kernel(&dev->dmasound.dma, PCI_DMA_FROMDEVICE,
296 (dev->dmasound.bufsize + PAGE_SIZE) >> PAGE_SHIFT);
4ac97914
MCC		 297 if (0 != err)
298 return err;
299 return 0;
5f7591c0
NS		 300}
301
d5ee43af
RC		 302/*
303 * DMA buffer release
304 *
305 * Called after closing the device, during snd_card_saa7134_capture_close
306 *
307 */
308
309static int dsp_buffer_free(struct saa7134_dev *dev)
310{
ae24601b 311 BUG_ON(!dev->dmasound.blksize);
d5ee43af
RC		 312
313 videobuf_dma_free(&dev->dmasound.dma);
314
315 dev->dmasound.blocks = 0;
316 dev->dmasound.blksize = 0;
317 dev->dmasound.bufsize = 0;
318
b930e1d8 319 return 0;
d5ee43af
RC		 320}
321
736dadaa
OJ		 322/*
323 * Setting the capture source and updating the ALSA controls
324 */
325static int snd_saa7134_capsrc_set(struct snd_kcontrol *kcontrol,
326 int left, int right, bool force_notify)
327{
328 snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
329 int change = 0, addr = kcontrol->private_value;
330 int active, old_addr;
331 u32 anabar, xbarin;
332 int analog_io, rate;
333 struct saa7134_dev *dev;
334
335 dev = chip->dev;
336
337 spin_lock_irq(&chip->mixer_lock);
338
339 active = left != 0 || right != 0;
340 old_addr = chip->capture_source_addr;
341
342 /* The active capture source cannot be deactivated */
343 if (active) {
344 change = old_addr != addr ||
345 chip->capture_source[0] != left ||
346 chip->capture_source[1] != right;
347
348 chip->capture_source[0] = left;
349 chip->capture_source[1] = right;
350 chip->capture_source_addr = addr;
351 dev->dmasound.input = addr;
352 }
353 spin_unlock_irq(&chip->mixer_lock);
354
355 if (change) {
356 switch (dev->pci->device) {
357
358 case PCI_DEVICE_ID_PHILIPS_SAA7134:
359 switch (addr) {
360 case MIXER_ADDR_TVTUNER:
361 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL,
362 0xc0, 0xc0);
363 saa_andorb(SAA7134_SIF_SAMPLE_FREQ,
364 0x03, 0x00);
365 break;
366 case MIXER_ADDR_LINE1:
367 case MIXER_ADDR_LINE2:
368 analog_io = (MIXER_ADDR_LINE1 == addr) ?
369 0x00 : 0x08;
370 rate = (32000 == dev->dmasound.rate) ?
371 0x01 : 0x03;
372 saa_andorb(SAA7134_ANALOG_IO_SELECT,
373 0x08, analog_io);
374 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL,
375 0xc0, 0x80);
376 saa_andorb(SAA7134_SIF_SAMPLE_FREQ,
377 0x03, rate);
378 break;
379 }
380
381 break;
382 case PCI_DEVICE_ID_PHILIPS_SAA7133:
383 case PCI_DEVICE_ID_PHILIPS_SAA7135:
384 xbarin = 0x03; /* adc */
385 anabar = 0;
386 switch (addr) {
387 case MIXER_ADDR_TVTUNER:
388 xbarin = 0; /* Demodulator */
389 anabar = 2; /* DACs */
390 break;
391 case MIXER_ADDR_LINE1:
392 anabar = 0; /* aux1, aux1 */
393 break;
394 case MIXER_ADDR_LINE2:
395 anabar = 9; /* aux2, aux2 */
396 break;
397 }
398
399 /* output xbar always main channel */
400 saa_dsp_writel(dev, SAA7133_DIGITAL_OUTPUT_SEL1,
401 0xbbbb10);
402
403 if (left || right) {
404 /* We've got data, turn the input on */
405 saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1,
406 xbarin);
407 saa_writel(SAA7133_ANALOG_IO_SELECT, anabar);
408 } else {
409 saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1,
410 0);
411 saa_writel(SAA7133_ANALOG_IO_SELECT, 0);
412 }
413 break;
414 }
415 }
416
417 if (change) {
418 if (force_notify)
419 snd_ctl_notify(chip->card,
420 SNDRV_CTL_EVENT_MASK_VALUE,
421 &chip->capture_ctl[addr]->id);
422
423 if (old_addr != MIXER_ADDR_UNSELECTED && old_addr != addr)
424 snd_ctl_notify(chip->card,
425 SNDRV_CTL_EVENT_MASK_VALUE,
426 &chip->capture_ctl[old_addr]->id);
427 }
428
429 return change;
430}
d5ee43af 431
b2c15ea9
RC		 432/*
433 * ALSA PCM preparation
434 *
435 * - One of the ALSA capture callbacks.
436 *
437 * Called right after the capture device is opened, this function configures
438 * the buffer using the previously defined functions, allocates the memory,
439 * sets up the hardware registers, and then starts the DMA. When this function
440 * returns, the audio should be flowing.
441 *
442 */
5f7591c0 443
f7cbb7fc 444static int snd_card_saa7134_capture_prepare(struct snd_pcm_substream * substream)
5f7591c0 445{
f7cbb7fc 446 struct snd_pcm_runtime *runtime = substream->runtime;
d5ee43af 447 int bswap, sign;
4ac97914 448 u32 fmt, control;
bd15eba3 449 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
4ac97914 450 struct saa7134_dev *dev;
4aabf633 451 snd_card_saa7134_pcm_t *pcm = runtime->private_data;
bd15eba3 452
4aabf633 453 pcm->dev->dmasound.substream = substream;
bd15eba3 454
d5ee43af 455 dev = saa7134->dev;
bd15eba3 456
d5ee43af 457 if (snd_pcm_format_width(runtime->format) == 8)
bd15eba3 458 fmt = 0x00;
d5ee43af 459 else
bd15eba3 460 fmt = 0x01;
4ac97914 461
d5ee43af 462 if (snd_pcm_format_signed(runtime->format))
bd15eba3 463 sign = 1;
d5ee43af 464 else
bd15eba3 465 sign = 0;
bd15eba3 466
d5ee43af
RC		 467 if (snd_pcm_format_big_endian(runtime->format))
468 bswap = 1;
469 else
470 bswap = 0;
4ac97914
MCC		 471
472 switch (dev->pci->device) {
473 case PCI_DEVICE_ID_PHILIPS_SAA7134:
474 if (1 == runtime->channels)
475 fmt |= (1 << 3);
476 if (2 == runtime->channels)
477 fmt |= (3 << 3);
478 if (sign)
479 fmt |= 0x04;
480
b54134be
RC		 481 fmt |= (MIXER_ADDR_TVTUNER == dev->dmasound.input) ? 0xc0 : 0x80;
482 saa_writeb(SAA7134_NUM_SAMPLES0, ((dev->dmasound.blksize - 1) & 0x0000ff));
483 saa_writeb(SAA7134_NUM_SAMPLES1, ((dev->dmasound.blksize - 1) & 0x00ff00) >> 8);
484 saa_writeb(SAA7134_NUM_SAMPLES2, ((dev->dmasound.blksize - 1) & 0xff0000) >> 16);
4ac97914
MCC		 485 saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt);
486
487 break;
488 case PCI_DEVICE_ID_PHILIPS_SAA7133:
489 case PCI_DEVICE_ID_PHILIPS_SAA7135:
490 if (1 == runtime->channels)
491 fmt |= (1 << 4);
492 if (2 == runtime->channels)
493 fmt |= (2 << 4);
494 if (!sign)
495 fmt |= 0x04;
b54134be 496 saa_writel(SAA7133_NUM_SAMPLES, dev->dmasound.blksize -1);
4ac97914 497 saa_writel(SAA7133_AUDIO_CHANNEL, 0x543210 | (fmt << 24));
4ac97914
MCC		 498 break;
499 }
500
501 dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n",
502 runtime->format, runtime->channels, fmt,
503 bswap ? 'b' : '-');
504 /* dma: setup channel 6 (= AUDIO) */
505 control = SAA7134_RS_CONTROL_BURST_16 |
506 SAA7134_RS_CONTROL_ME |
b54134be 507 (dev->dmasound.pt.dma >> 12);
4ac97914
MCC		 508 if (bswap)
509 control |= SAA7134_RS_CONTROL_BSWAP;
bd15eba3 510
4ac97914 511 saa_writel(SAA7134_RS_BA1(6),0);
b54134be 512 saa_writel(SAA7134_RS_BA2(6),dev->dmasound.blksize);
4ac97914
MCC		 513 saa_writel(SAA7134_RS_PITCH(6),0);
514 saa_writel(SAA7134_RS_CONTROL(6),control);
bd15eba3 515
b54134be 516 dev->dmasound.rate = runtime->rate;
5f7591c0 517
736dadaa
OJ		 518 /* Setup and update the card/ALSA controls */
519 snd_saa7134_capsrc_set(saa7134->capture_ctl[dev->dmasound.input], 1, 1,
520 true);
521
bd15eba3 522 return 0;
5f7591c0 523
bd15eba3 524}
5f7591c0 525
b2c15ea9
RC		 526/*
527 * ALSA pointer fetching
528 *
529 * - One of the ALSA capture callbacks.
530 *
531 * Called whenever a period elapses, it must return the current hardware
532 * position of the buffer.
533 * Also resets the read counter used to prevent overruns
534 *
535 */
5f7591c0 536
f7cbb7fc
TI		 537static snd_pcm_uframes_t
538snd_card_saa7134_capture_pointer(struct snd_pcm_substream * substream)
5f7591c0 539{
f7cbb7fc 540 struct snd_pcm_runtime *runtime = substream->runtime;
4aabf633
RC		 541 snd_card_saa7134_pcm_t *pcm = runtime->private_data;
542 struct saa7134_dev *dev=pcm->dev;
5f7591c0 543
b54134be
RC		 544 if (dev->dmasound.read_count) {
545 dev->dmasound.read_count -= snd_pcm_lib_period_bytes(substream);
546 dev->dmasound.read_offset += snd_pcm_lib_period_bytes(substream);
547 if (dev->dmasound.read_offset == dev->dmasound.bufsize)
548 dev->dmasound.read_offset = 0;
bd15eba3 549 }
5f7591c0 550
b54134be 551 return bytes_to_frames(runtime, dev->dmasound.read_offset);
bd15eba3 552}
5f7591c0 553
b2c15ea9
RC		 554/*
555 * ALSA hardware capabilities definition
7b543602
OJ		 556 *
557 * Report only 32kHz for ALSA:
558 *
559 * - SAA7133/35 uses DDEP (DemDec Easy Programming mode), which works in 32kHz
560 * only
561 * - SAA7134 for TV mode uses DemDec mode (32kHz)
562 * - Radio works in 32kHz only
563 * - When recording 48kHz from Line1/Line2, switching of capture source to TV
564 * means
565 * switching to 32kHz without any frequency translation
b2c15ea9 566 */
5f7591c0 567
f7cbb7fc 568static struct snd_pcm_hardware snd_card_saa7134_capture =
5f7591c0 569{
4ac97914 570 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
f2421ca3
MCC		 571 SNDRV_PCM_INFO_BLOCK_TRANSFER |
572 SNDRV_PCM_INFO_MMAP_VALID),
b54134be
RC		 573 .formats = SNDRV_PCM_FMTBIT_S16_LE | \
574 SNDRV_PCM_FMTBIT_S16_BE | \
575 SNDRV_PCM_FMTBIT_S8 | \
576 SNDRV_PCM_FMTBIT_U8 | \
577 SNDRV_PCM_FMTBIT_U16_LE | \
578 SNDRV_PCM_FMTBIT_U16_BE,
7b543602 579 .rates = SNDRV_PCM_RATE_32000,
b54134be 580 .rate_min = 32000,
7b543602 581 .rate_max = 32000,
b54134be
RC		 582 .channels_min = 1,
583 .channels_max = 2,
584 .buffer_bytes_max = (256*1024),
bd15eba3 585 .period_bytes_min = 64,
b54134be 586 .period_bytes_max = (256*1024),
174eb8e8 587 .periods_min = 4,
b54134be 588 .periods_max = 1024,
bd15eba3 589};
5f7591c0 590
f7cbb7fc 591static void snd_card_saa7134_runtime_free(struct snd_pcm_runtime *runtime)
bd15eba3 592{
4aabf633 593 snd_card_saa7134_pcm_t *pcm = runtime->private_data;
bd15eba3 594
4aabf633 595 kfree(pcm);
5f7591c0
NS		 596}
597
bd15eba3 598
b2c15ea9
RC		 599/*
600 * ALSA hardware params
601 *
602 * - One of the ALSA capture callbacks.
603 *
604 * Called on initialization, right before the PCM preparation
b2c15ea9
RC		 605 *
606 */
607
f7cbb7fc
TI		 608static int snd_card_saa7134_hw_params(struct snd_pcm_substream * substream,
609 struct snd_pcm_hw_params * hw_params)
5f7591c0 610{
d5ee43af
RC		 611 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
612 struct saa7134_dev *dev;
613 unsigned int period_size, periods;
614 int err;
615
616 period_size = params_period_bytes(hw_params);
617 periods = params_periods(hw_params);
618
5e246b85
TI		 619 if (period_size < 0x100 || period_size > 0x10000)
620 return -EINVAL;
621 if (periods < 4)
622 return -EINVAL;
623 if (period_size * periods > 1024 * 1024)
624 return -EINVAL;
d5ee43af
RC		 625
626 dev = saa7134->dev;
627
628 if (dev->dmasound.blocks == periods &&
629 dev->dmasound.blksize == period_size)
630 return 0;
631
632 /* release the old buffer */
633 if (substream->runtime->dma_area) {
634 saa7134_pgtable_free(dev->pci, &dev->dmasound.pt);
95268403 635 videobuf_dma_unmap(&dev->pci->dev, &dev->dmasound.dma);
d5ee43af
RC		 636 dsp_buffer_free(dev);
637 substream->runtime->dma_area = NULL;
638 }
639 dev->dmasound.blocks = periods;
640 dev->dmasound.blksize = period_size;
641 dev->dmasound.bufsize = period_size * periods;
642
643 err = dsp_buffer_init(dev);
644 if (0 != err) {
645 dev->dmasound.blocks = 0;
646 dev->dmasound.blksize = 0;
647 dev->dmasound.bufsize = 0;
648 return err;
649 }
650
95268403 651 if (0 != (err = videobuf_dma_map(&dev->pci->dev, &dev->dmasound.dma))) {
d5ee43af
RC		 652 dsp_buffer_free(dev);
653 return err;
654 }
655 if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->dmasound.pt))) {
95268403 656 videobuf_dma_unmap(&dev->pci->dev, &dev->dmasound.dma);
d5ee43af
RC		 657 dsp_buffer_free(dev);
658 return err;
659 }
660 if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->dmasound.pt,
661 dev->dmasound.dma.sglist,
662 dev->dmasound.dma.sglen,
663 0))) {
664 saa7134_pgtable_free(dev->pci, &dev->dmasound.pt);
95268403 665 videobuf_dma_unmap(&dev->pci->dev, &dev->dmasound.dma);
d5ee43af
RC		 666 dsp_buffer_free(dev);
667 return err;
668 }
669
670 /* I should be able to use runtime->dma_addr in the control
671 byte, but it doesn't work. So I allocate the DMA using the
672 V4L functions, and force ALSA to use that as the DMA area */
673
bb6dbe74 674 substream->runtime->dma_area = dev->dmasound.dma.vaddr;
32d111a9
AP		 675 substream->runtime->dma_bytes = dev->dmasound.bufsize;
676 substream->runtime->dma_addr = 0;
d5ee43af 677
32d111a9 678 return 0;
bd15eba3 679
5f7591c0
NS		 680}
681
b2c15ea9
RC		 682/*
683 * ALSA hardware release
684 *
685 * - One of the ALSA capture callbacks.
686 *
687 * Called after closing the device, but before snd_card_saa7134_capture_close
d5ee43af 688 * It stops the DMA audio and releases the buffers.
b2c15ea9
RC		 689 *
690 */
691
f7cbb7fc 692static int snd_card_saa7134_hw_free(struct snd_pcm_substream * substream)
5f7591c0 693{
d5ee43af
RC		 694 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
695 struct saa7134_dev *dev;
5f7591c0 696
d5ee43af 697 dev = saa7134->dev;
5f7591c0 698
d5ee43af
RC		 699 if (substream->runtime->dma_area) {
700 saa7134_pgtable_free(dev->pci, &dev->dmasound.pt);
95268403 701 videobuf_dma_unmap(&dev->pci->dev, &dev->dmasound.dma);
d5ee43af
RC		 702 dsp_buffer_free(dev);
703 substream->runtime->dma_area = NULL;
704 }
bd15eba3 705
4ac97914 706 return 0;
5f7591c0
NS		 707}
708
b2c15ea9
RC		 709/*
710 * ALSA capture finish
711 *
712 * - One of the ALSA capture callbacks.
713 *
d5ee43af 714 * Called after closing the device.
b2c15ea9
RC		 715 *
716 */
bd15eba3 717
f7cbb7fc 718static int snd_card_saa7134_capture_close(struct snd_pcm_substream * substream)
5f7591c0 719{
dafcaaf8
RC		 720 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
721 struct saa7134_dev *dev = saa7134->dev;
722
aac0ca6a
RB		 723 if (saa7134->mute_was_on) {
724 dev->ctl_mute = 1;
725 saa7134_tvaudio_setmute(dev);
726 }
4ac97914 727 return 0;
5f7591c0
NS		 728}
729
b2c15ea9
RC		 730/*
731 * ALSA capture start
732 *
733 * - One of the ALSA capture callbacks.
734 *
735 * Called when opening the device. It creates and populates the PCM
736 * structure
737 *
738 */
5f7591c0 739
f7cbb7fc 740static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream)
b2c15ea9 741{
f7cbb7fc 742 struct snd_pcm_runtime *runtime = substream->runtime;
4aabf633 743 snd_card_saa7134_pcm_t *pcm;
4ac97914 744 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
83ee87a3 745 struct saa7134_dev *dev;
5cfbacd0 746 int amux, err;
5f7591c0 747
83ee87a3
MCC		 748 if (!saa7134) {
749 printk(KERN_ERR "BUG: saa7134 can't find device struct."
750 " Can't proceed with open\n");
751 return -ENODEV;
752 }
753 dev = saa7134->dev;
3593cab5 754 mutex_lock(&dev->dmasound.lock);
5f7591c0 755
b54134be
RC		 756 dev->dmasound.read_count = 0;
757 dev->dmasound.read_offset = 0;
bd15eba3 758
5cfbacd0
HH		 759 amux = dev->input->amux;
760 if ((amux < 1) || (amux > 3))
761 amux = 1;
762 dev->dmasound.input = amux - 1;
763
3593cab5 764 mutex_unlock(&dev->dmasound.lock);
5f7591c0 765
4aabf633
RC		 766 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
767 if (pcm == NULL)
bd15eba3 768 return -ENOMEM;
bd15eba3 769
4aabf633
RC		 770 pcm->dev=saa7134->dev;
771
772 spin_lock_init(&pcm->lock);
bd15eba3 773
4aabf633
RC		 774 pcm->substream = substream;
775 runtime->private_data = pcm;
bd15eba3
RC		 776 runtime->private_free = snd_card_saa7134_runtime_free;
777 runtime->hw = snd_card_saa7134_capture;
778
aac0ca6a
RB		 779 if (dev->ctl_mute != 0) {
780 saa7134->mute_was_on = 1;
781 dev->ctl_mute = 0;
782 saa7134_tvaudio_setmute(dev);
783 }
dafcaaf8 784
174eb8e8
HL		 785 err = snd_pcm_hw_constraint_integer(runtime,
786 SNDRV_PCM_HW_PARAM_PERIODS);
787 if (err < 0)
788 return err;
789
790 err = snd_pcm_hw_constraint_step(runtime, 0,
791 SNDRV_PCM_HW_PARAM_PERIODS, 2);
792 if (err < 0)
4ac97914 793 return err;
5f7591c0
NS		 794
795 return 0;
796}
797
32d111a9
AP		 798/*
799 * page callback (needed for mmap)
800 */
801
802static struct page *snd_card_saa7134_page(struct snd_pcm_substream *substream,
803 unsigned long offset)
804{
805 void *pageptr = substream->runtime->dma_area + offset;
806 return vmalloc_to_page(pageptr);
807}
808
b2c15ea9
RC		 809/*
810 * ALSA capture callbacks definition
811 */
5f7591c0 812
f7cbb7fc 813static struct snd_pcm_ops snd_card_saa7134_capture_ops = {
bd15eba3
RC		 814 .open = snd_card_saa7134_capture_open,
815 .close = snd_card_saa7134_capture_close,
816 .ioctl = snd_pcm_lib_ioctl,
817 .hw_params = snd_card_saa7134_hw_params,
818 .hw_free = snd_card_saa7134_hw_free,
819 .prepare = snd_card_saa7134_capture_prepare,
820 .trigger = snd_card_saa7134_capture_trigger,
821 .pointer = snd_card_saa7134_capture_pointer,
32d111a9 822 .page = snd_card_saa7134_page,
5f7591c0
NS		 823};
824
b2c15ea9
RC		 825/*
826 * ALSA PCM setup
827 *
828 * Called when initializing the board. Sets up the name and hooks up
829 * the callbacks
830 *
831 */
832
833static int snd_card_saa7134_pcm(snd_card_saa7134_t *saa7134, int device)
bd15eba3 834{
f7cbb7fc 835 struct snd_pcm *pcm;
bd15eba3 836 int err;
5f7591c0 837
bd15eba3
RC		 838 if ((err = snd_pcm_new(saa7134->card, "SAA7134 PCM", device, 0, 1, &pcm)) < 0)
839 return err;
840 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_saa7134_capture_ops);
841 pcm->private_data = saa7134;
842 pcm->info_flags = 0;
843 strcpy(pcm->name, "SAA7134 PCM");
bd15eba3
RC		 844 return 0;
845}
5f7591c0 846
bd15eba3
RC		 847#define SAA713x_VOLUME(xname, xindex, addr) \
848{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
849 .info = snd_saa7134_volume_info, \
850 .get = snd_saa7134_volume_get, .put = snd_saa7134_volume_put, \
851 .private_value = addr }
5f7591c0 852
f7cbb7fc
TI		 853static int snd_saa7134_volume_info(struct snd_kcontrol * kcontrol,
854 struct snd_ctl_elem_info * uinfo)
bd15eba3
RC		 855{
856 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
857 uinfo->count = 2;
858 uinfo->value.integer.min = 0;
859 uinfo->value.integer.max = 20;
860 return 0;
861}
5f7591c0 862
f7cbb7fc
TI		 863static int snd_saa7134_volume_get(struct snd_kcontrol * kcontrol,
864 struct snd_ctl_elem_value * ucontrol)
bd15eba3
RC		 865{
866 snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
bd15eba3
RC		 867 int addr = kcontrol->private_value;
868
bd15eba3
RC		 869 ucontrol->value.integer.value[0] = chip->mixer_volume[addr][0];
870 ucontrol->value.integer.value[1] = chip->mixer_volume[addr][1];
bd15eba3
RC		 871 return 0;
872}
5f7591c0 873
f7cbb7fc
TI		 874static int snd_saa7134_volume_put(struct snd_kcontrol * kcontrol,
875 struct snd_ctl_elem_value * ucontrol)
5f7591c0 876{
bd15eba3 877 snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
5cfbacd0
HH		 878 struct saa7134_dev *dev = chip->dev;
879
bd15eba3
RC		 880 int change, addr = kcontrol->private_value;
881 int left, right;
882
883 left = ucontrol->value.integer.value[0];
884 if (left < 0)
885 left = 0;
886 if (left > 20)
887 left = 20;
888 right = ucontrol->value.integer.value[1];
889 if (right < 0)
890 right = 0;
891 if (right > 20)
892 right = 20;
d5ee43af 893 spin_lock_irq(&chip->mixer_lock);
5cfbacd0
HH		 894 change = 0;
895 if (chip->mixer_volume[addr][0] != left) {
896 change = 1;
897 right = left;
898 }
899 if (chip->mixer_volume[addr][1] != right) {
900 change = 1;
901 left = right;
902 }
903 if (change) {
904 switch (dev->pci->device) {
905 case PCI_DEVICE_ID_PHILIPS_SAA7134:
906 switch (addr) {
907 case MIXER_ADDR_TVTUNER:
908 left = 20;
909 break;
910 case MIXER_ADDR_LINE1:
911 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x10,
912 (left > 10) ? 0x00 : 0x10);
913 break;
914 case MIXER_ADDR_LINE2:
915 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x20,
916 (left > 10) ? 0x00 : 0x20);
917 break;
918 }
919 break;
920 case PCI_DEVICE_ID_PHILIPS_SAA7133:
921 case PCI_DEVICE_ID_PHILIPS_SAA7135:
922 switch (addr) {
923 case MIXER_ADDR_TVTUNER:
924 left = 20;
925 break;
926 case MIXER_ADDR_LINE1:
927 saa_andorb(0x0594, 0x10,
928 (left > 10) ? 0x00 : 0x10);
929 break;
930 case MIXER_ADDR_LINE2:
931 saa_andorb(0x0594, 0x20,
932 (left > 10) ? 0x00 : 0x20);
933 break;
934 }
935 break;
936 }
937 chip->mixer_volume[addr][0] = left;
938 chip->mixer_volume[addr][1] = right;
939 }
d5ee43af 940 spin_unlock_irq(&chip->mixer_lock);
bd15eba3
RC		 941 return change;
942}
5f7591c0 943
bd15eba3
RC		 944#define SAA713x_CAPSRC(xname, xindex, addr) \
945{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
946 .info = snd_saa7134_capsrc_info, \
947 .get = snd_saa7134_capsrc_get, .put = snd_saa7134_capsrc_put, \
948 .private_value = addr }
5f7591c0 949
f7cbb7fc
TI		 950static int snd_saa7134_capsrc_info(struct snd_kcontrol * kcontrol,
951 struct snd_ctl_elem_info * uinfo)
bd15eba3
RC		 952{
953 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
b2c15ea9 954 uinfo->count = 2;
bd15eba3
RC		 955 uinfo->value.integer.min = 0;
956 uinfo->value.integer.max = 1;
957 return 0;
958}
5f7591c0 959
f7cbb7fc
TI		 960static int snd_saa7134_capsrc_get(struct snd_kcontrol * kcontrol,
961 struct snd_ctl_elem_value * ucontrol)
bd15eba3
RC		 962{
963 snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
bd15eba3
RC		 964 int addr = kcontrol->private_value;
965
d5ee43af 966 spin_lock_irq(&chip->mixer_lock);
736dadaa
OJ		 967 if (chip->capture_source_addr == addr) {
968 ucontrol->value.integer.value[0] = chip->capture_source[0];
969 ucontrol->value.integer.value[1] = chip->capture_source[1];
970 } else {
971 ucontrol->value.integer.value[0] = 0;
972 ucontrol->value.integer.value[1] = 0;
973 }
d5ee43af 974 spin_unlock_irq(&chip->mixer_lock);
4aabf633 975
5f7591c0
NS		 976 return 0;
977}
978
f7cbb7fc
TI		 979static int snd_saa7134_capsrc_put(struct snd_kcontrol * kcontrol,
980 struct snd_ctl_elem_value * ucontrol)
5f7591c0 981{
bd15eba3 982 int left, right;
bd15eba3
RC		 983 left = ucontrol->value.integer.value[0] & 1;
984 right = ucontrol->value.integer.value[1] & 1;
bd15eba3 985
736dadaa 986 return snd_saa7134_capsrc_set(kcontrol, left, right, false);
5f7591c0
NS		 987}
988
736dadaa 989static struct snd_kcontrol_new snd_saa7134_volume_controls[] = {
bd15eba3 990SAA713x_VOLUME("Video Volume", 0, MIXER_ADDR_TVTUNER),
bd15eba3 991SAA713x_VOLUME("Line Volume", 1, MIXER_ADDR_LINE1),
bd15eba3 992SAA713x_VOLUME("Line Volume", 2, MIXER_ADDR_LINE2),
736dadaa
OJ		 993};
994
995static struct snd_kcontrol_new snd_saa7134_capture_controls[] = {
996SAA713x_CAPSRC("Video Capture Switch", 0, MIXER_ADDR_TVTUNER),
997SAA713x_CAPSRC("Line Capture Switch", 1, MIXER_ADDR_LINE1),
bd15eba3
RC		 998SAA713x_CAPSRC("Line Capture Switch", 2, MIXER_ADDR_LINE2),
999};
5f7591c0 1000
b2c15ea9
RC		 1001/*
1002 * ALSA mixer setup
1003 *
1004 * Called when initializing the board. Sets up the name and hooks up
1005 * the callbacks
1006 *
1007 */
1008
1009static int snd_card_saa7134_new_mixer(snd_card_saa7134_t * chip)
bd15eba3 1010{
f7cbb7fc 1011 struct snd_card *card = chip->card;
736dadaa 1012 struct snd_kcontrol *kcontrol;
bd15eba3 1013 unsigned int idx;
736dadaa 1014 int err, addr;
bd15eba3 1015
bd15eba3 1016 strcpy(card->mixername, "SAA7134 Mixer");
5f7591c0 1017
736dadaa
OJ		 1018 for (idx = 0; idx < ARRAY_SIZE(snd_saa7134_volume_controls); idx++) {
1019 kcontrol = snd_ctl_new1(&snd_saa7134_volume_controls[idx],
1020 chip);
1021 err = snd_ctl_add(card, kcontrol);
1022 if (err < 0)
bd15eba3
RC		 1023 return err;
1024 }
736dadaa
OJ		 1025
1026 for (idx = 0; idx < ARRAY_SIZE(snd_saa7134_capture_controls); idx++) {
1027 kcontrol = snd_ctl_new1(&snd_saa7134_capture_controls[idx],
1028 chip);
1029 addr = snd_saa7134_capture_controls[idx].private_value;
1030 chip->capture_ctl[addr] = kcontrol;
1031 err = snd_ctl_add(card, kcontrol);
1032 if (err < 0)
1033 return err;
1034 }
1035
1036 chip->capture_source_addr = MIXER_ADDR_UNSELECTED;
bd15eba3
RC		 1037 return 0;
1038}
1039
f7cbb7fc 1040static void snd_saa7134_free(struct snd_card * card)
5f7591c0 1041{
d5ee43af 1042 snd_card_saa7134_t *chip = card->private_data;
c817e763 1043
4aabf633 1044 if (chip->dev->dmasound.priv_data == NULL)
d5ee43af 1045 return;
4aabf633 1046
f000fd80 1047 if (chip->irq >= 0)
4aabf633 1048 free_irq(chip->irq, &chip->dev->dmasound);
c817e763 1049
4aabf633
RC		 1050 chip->dev->dmasound.priv_data = NULL;
1051
bd15eba3 1052}
5f7591c0 1053
b2c15ea9
RC		 1054/*
1055 * ALSA initialization
1056 *
c817e763
RC		 1057 * Called by the init routine, once for each saa7134 device present,
1058 * it creates the basic structures and registers the ALSA devices
b2c15ea9
RC		 1059 *
1060 */
1061
943a4902 1062static int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum)
bd15eba3 1063{
79dd0c69 1064
f7cbb7fc 1065 struct snd_card *card;
b2c15ea9 1066 snd_card_saa7134_t *chip;
bd15eba3 1067 int err;
5f7591c0 1068
79dd0c69 1069
4aabf633 1070 if (devnum >= SNDRV_CARDS)
4ac97914 1071 return -ENODEV;
4aabf633 1072 if (!enable[devnum])
bd15eba3 1073 return -ENODEV;
b2c15ea9 1074
758021bf
TI		 1075 err = snd_card_create(index[devnum], id[devnum], THIS_MODULE,
1076 sizeof(snd_card_saa7134_t), &card);
1077 if (err < 0)
1078 return err;
5f7591c0 1079
bd15eba3 1080 strcpy(card->driver, "SAA7134");
5f7591c0 1081
bd15eba3 1082 /* Card "creation" */
b2c15ea9 1083
c817e763 1084 card->private_free = snd_saa7134_free;
abf84383 1085 chip = card->private_data;
5f7591c0 1086
4ac97914 1087 spin_lock_init(&chip->lock);
b54134be 1088 spin_lock_init(&chip->mixer_lock);
5f7591c0 1089
4aabf633 1090 chip->dev = dev;
5f7591c0 1091
4ac97914 1092 chip->card = card;
b2c15ea9 1093
4aabf633 1094 chip->pci = dev->pci;
4aabf633
RC		 1095 chip->iobase = pci_resource_start(dev->pci, 0);
1096
5f7591c0 1097
4aabf633 1098 err = request_irq(dev->pci->irq, saa7134_alsa_irq,
8076fe32 1099 IRQF_SHARED | IRQF_DISABLED, dev->name,
4aabf633 1100 (void*) &dev->dmasound);
79dd0c69
RC		 1101
1102 if (err < 0) {
1103 printk(KERN_ERR "%s: can't get IRQ %d for ALSA\n",
4aabf633 1104 dev->name, dev->pci->irq);
b54134be 1105 goto __nodev;
79dd0c69
RC		 1106 }
1107
d5ee43af 1108 chip->irq = dev->pci->irq;
4aabf633 1109
3593cab5 1110 mutex_init(&dev->dmasound.lock);
5f7591c0 1111
bd15eba3
RC		 1112 if ((err = snd_card_saa7134_new_mixer(chip)) < 0)
1113 goto __nodev;
5f7591c0 1114
bd15eba3
RC		 1115 if ((err = snd_card_saa7134_pcm(chip, 0)) < 0)
1116 goto __nodev;
b2c15ea9 1117
bd15eba3 1118 snd_card_set_dev(card, &chip->pci->dev);
5f7591c0 1119
bd15eba3 1120 /* End of "creation" */
5f7591c0 1121
bd15eba3 1122 strcpy(card->shortname, "SAA7134");
4ac97914 1123 sprintf(card->longname, "%s at 0x%lx irq %d",
4aabf633 1124 chip->dev->name, chip->iobase, chip->irq);
5f7591c0 1125
f5b974cb
RC		 1126 printk(KERN_INFO "%s/alsa: %s registered as card %d\n",dev->name,card->longname,index[devnum]);
1127
bd15eba3 1128 if ((err = snd_card_register(card)) == 0) {
4aabf633 1129 snd_saa7134_cards[devnum] = card;
bd15eba3
RC		 1130 return 0;
1131 }
1132
1133__nodev:
1134 snd_card_free(card);
bd15eba3 1135 return err;
5f7591c0
NS		 1136}
1137
f5b974cb
RC		 1138
1139static int alsa_device_init(struct saa7134_dev *dev)
1140{
1141 dev->dmasound.priv_data = dev;
1142 alsa_card_saa7134_create(dev,dev->nr);
1143 return 1;
1144}
1145
1146static int alsa_device_exit(struct saa7134_dev *dev)
1147{
d5ce15e8
MCC		 1148 if (!snd_saa7134_cards[dev->nr])
1149 return 1;
f5b974cb
RC		 1150
1151 snd_card_free(snd_saa7134_cards[dev->nr]);
1152 snd_saa7134_cards[dev->nr] = NULL;
1153 return 1;
1154}
1155
79dd0c69
RC		 1156/*
1157 * Module initializer
1158 *
1159 * Loops through present saa7134 cards, and assigns an ALSA device
1160 * to each one
1161 *
1162 */
1163
1164static int saa7134_alsa_init(void)
1165{
4aabf633 1166 struct saa7134_dev *dev = NULL;
c817e763 1167 struct list_head *list;
79dd0c69 1168
166fb6b4
AB		 1169 saa7134_dmasound_init = alsa_device_init;
1170 saa7134_dmasound_exit = alsa_device_exit;
7bb95296 1171
afd1a0c9 1172 printk(KERN_INFO "saa7134 ALSA driver for DMA sound loaded\n");
c817e763
RC		 1173
1174 list_for_each(list,&saa7134_devlist) {
4aabf633 1175 dev = list_entry(list, struct saa7134_dev, devlist);
40c41c8c
MCC		 1176 if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130)
1177 printk(KERN_INFO "%s/alsa: %s doesn't support digital audio\n",
1178 dev->name, saa7134_boards[dev->board].name);
1179 else
1180 alsa_device_init(dev);
c817e763 1181 }
79dd0c69 1182
4aabf633 1183 if (dev == NULL)
79dd0c69
RC		 1184 printk(KERN_INFO "saa7134 ALSA: no saa7134 cards found\n");
1185
1186 return 0;
674434c6 1187
79dd0c69
RC		 1188}
1189
1190/*
1191 * Module destructor
1192 */
1193
943a4902 1194static void saa7134_alsa_exit(void)
5f7591c0 1195{
4ac97914 1196 int idx;
b54134be 1197
79dd0c69 1198 for (idx = 0; idx < SNDRV_CARDS; idx++) {
d5ce15e8
MCC		 1199 if (snd_saa7134_cards[idx])
1200 snd_card_free(snd_saa7134_cards[idx]);
bd15eba3 1201 }
b54134be 1202
78457018
AB		 1203 saa7134_dmasound_init = NULL;
1204 saa7134_dmasound_exit = NULL;
79dd0c69 1205 printk(KERN_INFO "saa7134 ALSA driver for DMA sound unloaded\n");
b54134be 1206
79dd0c69 1207 return;
5f7591c0 1208}
79dd0c69 1209
c7ac6b42
LT		 1210/* We initialize this late, to make sure the sound system is up and running */
1211late_initcall(saa7134_alsa_init);
79dd0c69
RC		 1212module_exit(saa7134_alsa_exit);
1213MODULE_LICENSE("GPL");
1214MODULE_AUTHOR("Ricardo Cerqueira");
kernel source for telekom puls (alcatel/mediatek)