Commit | Line | Data |
---|---|---|
5f7591c0 | 1 | /* |
bd15eba3 | 2 | * SAA713x ALSA support for V4L |
5f7591c0 | 3 | * |
5f7591c0 | 4 | * |
bd15eba3 | 5 | * Caveats: |
bd15eba3 | 6 | * - Volume doesn't work (it's always at max) |
bd15eba3 RC |
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, version 2 | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
5f7591c0 | 20 | * |
5f7591c0 NS |
21 | */ |
22 | ||
5f7591c0 | 23 | #include <sound/driver.h> |
bd15eba3 RC |
24 | #include <linux/init.h> |
25 | #include <linux/slab.h> | |
26 | #include <linux/time.h> | |
27 | #include <linux/wait.h> | |
28 | #include <linux/moduleparam.h> | |
29 | #include <linux/module.h> | |
5f7591c0 | 30 | #include <sound/core.h> |
5f7591c0 | 31 | #include <sound/control.h> |
bd15eba3 | 32 | #include <sound/pcm.h> |
5f7591c0 | 33 | #include <sound/initval.h> |
871242b9 | 34 | #include <linux/interrupt.h> |
5f7591c0 NS |
35 | |
36 | #include "saa7134.h" | |
37 | #include "saa7134-reg.h" | |
38 | ||
79dd0c69 RC |
39 | static unsigned int debug = 0; |
40 | module_param(debug, int, 0644); | |
41 | MODULE_PARM_DESC(debug,"enable debug messages [alsa]"); | |
42 | ||
b2c15ea9 RC |
43 | /* |
44 | * Configuration macros | |
45 | */ | |
46 | ||
bd15eba3 | 47 | /* defaults */ |
b2c15ea9 RC |
48 | #define MIXER_ADDR_TVTUNER 0 |
49 | #define MIXER_ADDR_LINE1 1 | |
50 | #define MIXER_ADDR_LINE2 2 | |
51 | #define MIXER_ADDR_LAST 2 | |
5f7591c0 | 52 | |
bd15eba3 RC |
53 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
54 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
55 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0}; | |
56 | ||
b54134be RC |
57 | module_param_array(index, int, NULL, 0444); |
58 | MODULE_PARM_DESC(index, "Index value for SAA7134 capture interface(s)."); | |
59 | ||
c817e763 RC |
60 | int position; |
61 | ||
79dd0c69 | 62 | #define dprintk(fmt, arg...) if (debug) \ |
b2c15ea9 | 63 | printk(KERN_DEBUG "%s/alsa: " fmt, dev->name , ## arg) |
bd15eba3 | 64 | |
b2c15ea9 RC |
65 | /* |
66 | * Main chip structure | |
67 | */ | |
bd15eba3 RC |
68 | typedef struct snd_card_saa7134 { |
69 | snd_card_t *card; | |
70 | spinlock_t mixer_lock; | |
71 | int mixer_volume[MIXER_ADDR_LAST+1][2]; | |
72 | int capture_source[MIXER_ADDR_LAST+1][2]; | |
4ac97914 | 73 | struct pci_dev *pci; |
4aabf633 | 74 | struct saa7134_dev *dev; |
bd15eba3 | 75 | |
4ac97914 MCC |
76 | unsigned long iobase; |
77 | int irq; | |
bd15eba3 RC |
78 | |
79 | spinlock_t lock; | |
80 | } snd_card_saa7134_t; | |
81 | ||
07eef6ce NS |
82 | |
83 | ||
b2c15ea9 RC |
84 | /* |
85 | * PCM structure | |
86 | */ | |
87 | ||
bd15eba3 | 88 | typedef struct snd_card_saa7134_pcm { |
4aabf633 | 89 | struct saa7134_dev *dev; |
bd15eba3 RC |
90 | |
91 | spinlock_t lock; | |
4aabf633 | 92 | |
bd15eba3 RC |
93 | snd_pcm_substream_t *substream; |
94 | } snd_card_saa7134_pcm_t; | |
5f7591c0 | 95 | |
b54134be | 96 | static snd_card_t *snd_saa7134_cards[SNDRV_CARDS]; |
5f7591c0 | 97 | |
79dd0c69 | 98 | |
b2c15ea9 RC |
99 | /* |
100 | * saa7134 DMA audio stop | |
101 | * | |
102 | * Called when the capture device is released or the buffer overflows | |
103 | * | |
c817e763 | 104 | * - Copied verbatim from saa7134-oss's dsp_dma_stop. |
b2c15ea9 RC |
105 | * |
106 | */ | |
107 | ||
bd15eba3 RC |
108 | static void saa7134_dma_stop(struct saa7134_dev *dev) |
109 | { | |
b54134be RC |
110 | dev->dmasound.dma_blk = -1; |
111 | dev->dmasound.dma_running = 0; | |
4ac97914 | 112 | saa7134_set_dmabits(dev); |
bd15eba3 | 113 | } |
5f7591c0 | 114 | |
b2c15ea9 RC |
115 | /* |
116 | * saa7134 DMA audio start | |
117 | * | |
118 | * Called when preparing the capture device for use | |
119 | * | |
c817e763 | 120 | * - Copied verbatim from saa7134-oss's dsp_dma_start. |
b2c15ea9 RC |
121 | * |
122 | */ | |
123 | ||
bd15eba3 RC |
124 | static void saa7134_dma_start(struct saa7134_dev *dev) |
125 | { | |
b54134be RC |
126 | dev->dmasound.dma_blk = 0; |
127 | dev->dmasound.dma_running = 1; | |
4ac97914 | 128 | saa7134_set_dmabits(dev); |
bd15eba3 | 129 | } |
5f7591c0 | 130 | |
b2c15ea9 RC |
131 | /* |
132 | * saa7134 audio DMA IRQ handler | |
133 | * | |
134 | * Called whenever we get an SAA7134_IRQ_REPORT_DONE_RA3 interrupt | |
135 | * Handles shifting between the 2 buffers, manages the read counters, | |
136 | * and notifies ALSA when periods elapse | |
137 | * | |
138 | * - Mostly copied from saa7134-oss's saa7134_irq_oss_done. | |
139 | * | |
140 | */ | |
141 | ||
bd15eba3 RC |
142 | void saa7134_irq_alsa_done(struct saa7134_dev *dev, unsigned long status) |
143 | { | |
144 | int next_blk, reg = 0; | |
5f7591c0 | 145 | |
bd15eba3 | 146 | spin_lock(&dev->slock); |
b54134be | 147 | if (UNSET == dev->dmasound.dma_blk) { |
bd15eba3 RC |
148 | dprintk("irq: recording stopped\n"); |
149 | goto done; | |
150 | } | |
151 | if (0 != (status & 0x0f000000)) | |
152 | dprintk("irq: lost %ld\n", (status >> 24) & 0x0f); | |
153 | if (0 == (status & 0x10000000)) { | |
154 | /* odd */ | |
b54134be | 155 | if (0 == (dev->dmasound.dma_blk & 0x01)) |
bd15eba3 RC |
156 | reg = SAA7134_RS_BA1(6); |
157 | } else { | |
158 | /* even */ | |
b54134be | 159 | if (1 == (dev->dmasound.dma_blk & 0x01)) |
bd15eba3 RC |
160 | reg = SAA7134_RS_BA2(6); |
161 | } | |
162 | if (0 == reg) { | |
163 | dprintk("irq: field oops [%s]\n", | |
164 | (status & 0x10000000) ? "even" : "odd"); | |
165 | goto done; | |
166 | } | |
5f7591c0 | 167 | |
b54134be RC |
168 | if (dev->dmasound.read_count >= dev->dmasound.blksize * (dev->dmasound.blocks-2)) { |
169 | dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count, | |
170 | dev->dmasound.bufsize, dev->dmasound.blocks); | |
171 | snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN); | |
bd15eba3 RC |
172 | goto done; |
173 | } | |
5f7591c0 | 174 | |
4ac97914 | 175 | /* next block addr */ |
b54134be RC |
176 | next_blk = (dev->dmasound.dma_blk + 2) % dev->dmasound.blocks; |
177 | saa_writel(reg,next_blk * dev->dmasound.blksize); | |
79dd0c69 | 178 | if (debug > 2) |
4ac97914 MCC |
179 | dprintk("irq: ok, %s, next_blk=%d, addr=%x, blocks=%u, size=%u, read=%u\n", |
180 | (status & 0x10000000) ? "even" : "odd ", next_blk, | |
b54134be | 181 | next_blk * dev->dmasound.blksize, dev->dmasound.blocks, dev->dmasound.blksize, dev->dmasound.read_count); |
5f7591c0 | 182 | |
4ac97914 | 183 | /* update status & wake waiting readers */ |
b54134be RC |
184 | dev->dmasound.dma_blk = (dev->dmasound.dma_blk + 1) % dev->dmasound.blocks; |
185 | dev->dmasound.read_count += dev->dmasound.blksize; | |
5f7591c0 | 186 | |
b54134be | 187 | dev->dmasound.recording_on = reg; |
5f7591c0 | 188 | |
b54134be | 189 | if (dev->dmasound.read_count >= snd_pcm_lib_period_bytes(dev->dmasound.substream)) { |
4ac97914 | 190 | spin_unlock(&dev->slock); |
b54134be | 191 | snd_pcm_period_elapsed(dev->dmasound.substream); |
4ac97914 | 192 | spin_lock(&dev->slock); |
bd15eba3 | 193 | } |
4aabf633 | 194 | |
bd15eba3 | 195 | done: |
4ac97914 | 196 | spin_unlock(&dev->slock); |
5f7591c0 | 197 | |
bd15eba3 | 198 | } |
5f7591c0 | 199 | |
79dd0c69 RC |
200 | /* |
201 | * IRQ request handler | |
202 | * | |
203 | * Runs along with saa7134's IRQ handler, discards anything that isn't | |
204 | * DMA sound | |
205 | * | |
206 | */ | |
207 | ||
208 | static irqreturn_t saa7134_alsa_irq(int irq, void *dev_id, struct pt_regs *regs) | |
209 | { | |
4aabf633 RC |
210 | struct saa7134_dmasound *dmasound = dev_id; |
211 | struct saa7134_dev *dev = dmasound->priv_data; | |
212 | ||
79dd0c69 RC |
213 | unsigned long report, status; |
214 | int loop, handled = 0; | |
215 | ||
216 | for (loop = 0; loop < 10; loop++) { | |
217 | report = saa_readl(SAA7134_IRQ_REPORT); | |
218 | status = saa_readl(SAA7134_IRQ_STATUS); | |
219 | ||
220 | if (report & SAA7134_IRQ_REPORT_DONE_RA3) { | |
221 | handled = 1; | |
222 | saa_writel(SAA7134_IRQ_REPORT,report); | |
223 | saa7134_irq_alsa_done(dev, status); | |
224 | } else { | |
225 | goto out; | |
226 | } | |
227 | } | |
228 | ||
229 | if (loop == 10) { | |
230 | dprintk("error! looping IRQ!"); | |
231 | } | |
232 | ||
233 | out: | |
234 | return IRQ_RETVAL(handled); | |
235 | } | |
236 | ||
b2c15ea9 RC |
237 | /* |
238 | * ALSA capture trigger | |
239 | * | |
240 | * - One of the ALSA capture callbacks. | |
241 | * | |
242 | * Called whenever a capture is started or stopped. Must be defined, | |
243 | * but there's nothing we want to do here | |
244 | * | |
245 | */ | |
5f7591c0 | 246 | |
bd15eba3 RC |
247 | static int snd_card_saa7134_capture_trigger(snd_pcm_substream_t * substream, |
248 | int cmd) | |
5f7591c0 | 249 | { |
b54134be | 250 | snd_pcm_runtime_t *runtime = substream->runtime; |
4aabf633 RC |
251 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
252 | struct saa7134_dev *dev=pcm->dev; | |
b54134be RC |
253 | int err = 0; |
254 | ||
255 | spin_lock_irq(&dev->slock); | |
c817e763 | 256 | if (cmd == SNDRV_PCM_TRIGGER_START) { |
b54134be RC |
257 | /* start dma */ |
258 | saa7134_dma_start(dev); | |
c817e763 | 259 | } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
b54134be RC |
260 | /* stop dma */ |
261 | saa7134_dma_stop(dev); | |
c817e763 RC |
262 | } else { |
263 | err = -EINVAL; | |
264 | } | |
b54134be RC |
265 | spin_unlock_irq(&dev->slock); |
266 | ||
c817e763 | 267 | return err; |
5f7591c0 NS |
268 | } |
269 | ||
b2c15ea9 RC |
270 | /* |
271 | * DMA buffer config | |
272 | * | |
273 | * Sets the values that will later be used as the size of the buffer, | |
274 | * size of the fragments, and total number of fragments. | |
275 | * Must be called during the preparation stage, before memory is | |
276 | * allocated | |
277 | * | |
c817e763 RC |
278 | * - Copied verbatim from saa7134-oss. |
279 | * | |
b2c15ea9 RC |
280 | */ |
281 | ||
bd15eba3 | 282 | static int dsp_buffer_conf(struct saa7134_dev *dev, int blksize, int blocks) |
5f7591c0 | 283 | { |
4ac97914 MCC |
284 | if (blksize < 0x100) |
285 | blksize = 0x100; | |
286 | if (blksize > 0x10000) | |
287 | blksize = 0x10000; | |
288 | ||
289 | if (blocks < 2) | |
290 | blocks = 2; | |
291 | if ((blksize * blocks) > 1024*1024) | |
292 | blocks = 1024*1024 / blksize; | |
293 | ||
b54134be RC |
294 | dev->dmasound.blocks = blocks; |
295 | dev->dmasound.blksize = blksize; | |
296 | dev->dmasound.bufsize = blksize * blocks; | |
4ac97914 MCC |
297 | |
298 | dprintk("buffer config: %d blocks / %d bytes, %d kB total\n", | |
299 | blocks,blksize,blksize * blocks / 1024); | |
300 | return 0; | |
5f7591c0 NS |
301 | } |
302 | ||
b2c15ea9 RC |
303 | /* |
304 | * DMA buffer initialization | |
305 | * | |
306 | * Uses V4L functions to initialize the DMA. Shouldn't be necessary in | |
307 | * ALSA, but I was unable to use ALSA's own DMA, and had to force the | |
308 | * usage of V4L's | |
309 | * | |
c817e763 RC |
310 | * - Copied verbatim from saa7134-oss. |
311 | * | |
b2c15ea9 RC |
312 | */ |
313 | ||
bd15eba3 | 314 | static int dsp_buffer_init(struct saa7134_dev *dev) |
5f7591c0 | 315 | { |
4ac97914 MCC |
316 | int err; |
317 | ||
4aabf633 RC |
318 | BUG_ON(!dev->dmasound.bufsize); |
319 | ||
b54134be RC |
320 | videobuf_dma_init(&dev->dmasound.dma); |
321 | err = videobuf_dma_init_kernel(&dev->dmasound.dma, PCI_DMA_FROMDEVICE, | |
322 | (dev->dmasound.bufsize + PAGE_SIZE) >> PAGE_SHIFT); | |
4ac97914 MCC |
323 | if (0 != err) |
324 | return err; | |
325 | return 0; | |
5f7591c0 NS |
326 | } |
327 | ||
b2c15ea9 RC |
328 | /* |
329 | * ALSA PCM preparation | |
330 | * | |
331 | * - One of the ALSA capture callbacks. | |
332 | * | |
333 | * Called right after the capture device is opened, this function configures | |
334 | * the buffer using the previously defined functions, allocates the memory, | |
335 | * sets up the hardware registers, and then starts the DMA. When this function | |
336 | * returns, the audio should be flowing. | |
337 | * | |
338 | */ | |
5f7591c0 | 339 | |
b2c15ea9 | 340 | static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream) |
5f7591c0 | 341 | { |
bd15eba3 | 342 | snd_pcm_runtime_t *runtime = substream->runtime; |
4ac97914 MCC |
343 | int err, bswap, sign; |
344 | u32 fmt, control; | |
bd15eba3 | 345 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
4ac97914 | 346 | struct saa7134_dev *dev; |
4aabf633 | 347 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
4ac97914 MCC |
348 | unsigned long size; |
349 | unsigned count; | |
bd15eba3 | 350 | |
4ac97914 MCC |
351 | size = snd_pcm_lib_buffer_bytes(substream); |
352 | count = snd_pcm_lib_period_bytes(substream); | |
bd15eba3 | 353 | |
4aabf633 | 354 | pcm->dev->dmasound.substream = substream; |
bd15eba3 | 355 | |
4aabf633 | 356 | dev=saa7134->dev; |
bd15eba3 | 357 | |
4aabf633 | 358 | dsp_buffer_conf(dev,count,(size/count)); |
bd15eba3 | 359 | |
4ac97914 MCC |
360 | err = dsp_buffer_init(dev); |
361 | if (0 != err) | |
c817e763 | 362 | return err; |
bd15eba3 | 363 | |
4ac97914 | 364 | /* prepare buffer */ |
b54134be | 365 | if (0 != (err = videobuf_dma_pci_map(dev->pci,&dev->dmasound.dma))) |
4ac97914 | 366 | return err; |
b54134be | 367 | if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->dmasound.pt))) |
4ac97914 | 368 | goto fail1; |
b54134be RC |
369 | if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->dmasound.pt, |
370 | dev->dmasound.dma.sglist, | |
371 | dev->dmasound.dma.sglen, | |
f2421ca3 | 372 | 0))) |
4ac97914 | 373 | goto fail2; |
bd15eba3 RC |
374 | |
375 | ||
376 | ||
4ac97914 MCC |
377 | switch (runtime->format) { |
378 | case SNDRV_PCM_FORMAT_U8: | |
379 | case SNDRV_PCM_FORMAT_S8: | |
bd15eba3 RC |
380 | fmt = 0x00; |
381 | break; | |
4ac97914 MCC |
382 | case SNDRV_PCM_FORMAT_U16_LE: |
383 | case SNDRV_PCM_FORMAT_U16_BE: | |
384 | case SNDRV_PCM_FORMAT_S16_LE: | |
385 | case SNDRV_PCM_FORMAT_S16_BE: | |
bd15eba3 RC |
386 | fmt = 0x01; |
387 | break; | |
4ac97914 MCC |
388 | default: |
389 | err = -EINVAL; | |
390 | return 1; | |
391 | } | |
392 | ||
393 | switch (runtime->format) { | |
394 | case SNDRV_PCM_FORMAT_S8: | |
395 | case SNDRV_PCM_FORMAT_S16_LE: | |
396 | case SNDRV_PCM_FORMAT_S16_BE: | |
bd15eba3 RC |
397 | sign = 1; |
398 | break; | |
4ac97914 | 399 | default: |
bd15eba3 RC |
400 | sign = 0; |
401 | break; | |
4ac97914 | 402 | } |
bd15eba3 | 403 | |
4ac97914 MCC |
404 | switch (runtime->format) { |
405 | case SNDRV_PCM_FORMAT_U16_BE: | |
406 | case SNDRV_PCM_FORMAT_S16_BE: | |
bd15eba3 | 407 | bswap = 1; break; |
4ac97914 | 408 | default: |
bd15eba3 | 409 | bswap = 0; break; |
4ac97914 MCC |
410 | } |
411 | ||
412 | switch (dev->pci->device) { | |
413 | case PCI_DEVICE_ID_PHILIPS_SAA7134: | |
414 | if (1 == runtime->channels) | |
415 | fmt |= (1 << 3); | |
416 | if (2 == runtime->channels) | |
417 | fmt |= (3 << 3); | |
418 | if (sign) | |
419 | fmt |= 0x04; | |
420 | ||
b54134be RC |
421 | fmt |= (MIXER_ADDR_TVTUNER == dev->dmasound.input) ? 0xc0 : 0x80; |
422 | saa_writeb(SAA7134_NUM_SAMPLES0, ((dev->dmasound.blksize - 1) & 0x0000ff)); | |
423 | saa_writeb(SAA7134_NUM_SAMPLES1, ((dev->dmasound.blksize - 1) & 0x00ff00) >> 8); | |
424 | saa_writeb(SAA7134_NUM_SAMPLES2, ((dev->dmasound.blksize - 1) & 0xff0000) >> 16); | |
4ac97914 MCC |
425 | saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt); |
426 | ||
427 | break; | |
428 | case PCI_DEVICE_ID_PHILIPS_SAA7133: | |
429 | case PCI_DEVICE_ID_PHILIPS_SAA7135: | |
430 | if (1 == runtime->channels) | |
431 | fmt |= (1 << 4); | |
432 | if (2 == runtime->channels) | |
433 | fmt |= (2 << 4); | |
434 | if (!sign) | |
435 | fmt |= 0x04; | |
b54134be | 436 | saa_writel(SAA7133_NUM_SAMPLES, dev->dmasound.blksize -1); |
4ac97914 | 437 | saa_writel(SAA7133_AUDIO_CHANNEL, 0x543210 | (fmt << 24)); |
4ac97914 MCC |
438 | break; |
439 | } | |
440 | ||
441 | dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n", | |
442 | runtime->format, runtime->channels, fmt, | |
443 | bswap ? 'b' : '-'); | |
444 | /* dma: setup channel 6 (= AUDIO) */ | |
445 | control = SAA7134_RS_CONTROL_BURST_16 | | |
446 | SAA7134_RS_CONTROL_ME | | |
b54134be | 447 | (dev->dmasound.pt.dma >> 12); |
4ac97914 MCC |
448 | if (bswap) |
449 | control |= SAA7134_RS_CONTROL_BSWAP; | |
bd15eba3 | 450 | |
b2c15ea9 | 451 | /* I should be able to use runtime->dma_addr in the control |
4ac97914 MCC |
452 | byte, but it doesn't work. So I allocate the DMA using the |
453 | V4L functions, and force ALSA to use that as the DMA area */ | |
b2c15ea9 | 454 | |
b54134be | 455 | runtime->dma_area = dev->dmasound.dma.vmalloc; |
b2c15ea9 | 456 | |
4ac97914 | 457 | saa_writel(SAA7134_RS_BA1(6),0); |
b54134be | 458 | saa_writel(SAA7134_RS_BA2(6),dev->dmasound.blksize); |
4ac97914 MCC |
459 | saa_writel(SAA7134_RS_PITCH(6),0); |
460 | saa_writel(SAA7134_RS_CONTROL(6),control); | |
bd15eba3 | 461 | |
b54134be | 462 | dev->dmasound.rate = runtime->rate; |
5f7591c0 | 463 | |
bd15eba3 RC |
464 | return 0; |
465 | fail2: | |
b54134be | 466 | saa7134_pgtable_free(dev->pci,&dev->dmasound.pt); |
bd15eba3 | 467 | fail1: |
b54134be | 468 | videobuf_dma_pci_unmap(dev->pci,&dev->dmasound.dma); |
4ac97914 | 469 | return err; |
5f7591c0 | 470 | |
5f7591c0 | 471 | |
bd15eba3 | 472 | } |
5f7591c0 | 473 | |
b2c15ea9 RC |
474 | /* |
475 | * ALSA pointer fetching | |
476 | * | |
477 | * - One of the ALSA capture callbacks. | |
478 | * | |
479 | * Called whenever a period elapses, it must return the current hardware | |
480 | * position of the buffer. | |
481 | * Also resets the read counter used to prevent overruns | |
482 | * | |
483 | */ | |
5f7591c0 | 484 | |
b2c15ea9 | 485 | static snd_pcm_uframes_t snd_card_saa7134_capture_pointer(snd_pcm_substream_t * substream) |
5f7591c0 | 486 | { |
5f7591c0 | 487 | snd_pcm_runtime_t *runtime = substream->runtime; |
4aabf633 RC |
488 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
489 | struct saa7134_dev *dev=pcm->dev; | |
5f7591c0 | 490 | |
b54134be RC |
491 | if (dev->dmasound.read_count) { |
492 | dev->dmasound.read_count -= snd_pcm_lib_period_bytes(substream); | |
493 | dev->dmasound.read_offset += snd_pcm_lib_period_bytes(substream); | |
494 | if (dev->dmasound.read_offset == dev->dmasound.bufsize) | |
495 | dev->dmasound.read_offset = 0; | |
bd15eba3 | 496 | } |
5f7591c0 | 497 | |
b54134be | 498 | return bytes_to_frames(runtime, dev->dmasound.read_offset); |
bd15eba3 | 499 | } |
5f7591c0 | 500 | |
b2c15ea9 RC |
501 | /* |
502 | * ALSA hardware capabilities definition | |
503 | */ | |
5f7591c0 | 504 | |
bd15eba3 | 505 | static snd_pcm_hardware_t snd_card_saa7134_capture = |
5f7591c0 | 506 | { |
4ac97914 | 507 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
f2421ca3 MCC |
508 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
509 | SNDRV_PCM_INFO_MMAP_VALID), | |
b54134be RC |
510 | .formats = SNDRV_PCM_FMTBIT_S16_LE | \ |
511 | SNDRV_PCM_FMTBIT_S16_BE | \ | |
512 | SNDRV_PCM_FMTBIT_S8 | \ | |
513 | SNDRV_PCM_FMTBIT_U8 | \ | |
514 | SNDRV_PCM_FMTBIT_U16_LE | \ | |
515 | SNDRV_PCM_FMTBIT_U16_BE, | |
516 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000, | |
517 | .rate_min = 32000, | |
518 | .rate_max = 48000, | |
519 | .channels_min = 1, | |
520 | .channels_max = 2, | |
521 | .buffer_bytes_max = (256*1024), | |
bd15eba3 | 522 | .period_bytes_min = 64, |
b54134be RC |
523 | .period_bytes_max = (256*1024), |
524 | .periods_min = 2, | |
525 | .periods_max = 1024, | |
bd15eba3 | 526 | }; |
5f7591c0 | 527 | |
bd15eba3 RC |
528 | static void snd_card_saa7134_runtime_free(snd_pcm_runtime_t *runtime) |
529 | { | |
4aabf633 | 530 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
bd15eba3 | 531 | |
4aabf633 | 532 | kfree(pcm); |
5f7591c0 NS |
533 | } |
534 | ||
bd15eba3 | 535 | |
b2c15ea9 RC |
536 | /* |
537 | * ALSA hardware params | |
538 | * | |
539 | * - One of the ALSA capture callbacks. | |
540 | * | |
541 | * Called on initialization, right before the PCM preparation | |
542 | * Usually used in ALSA to allocate the DMA, but since we don't use the | |
e8b23c02 | 543 | * ALSA DMA it does nothing |
b2c15ea9 RC |
544 | * |
545 | */ | |
546 | ||
bd15eba3 RC |
547 | static int snd_card_saa7134_hw_params(snd_pcm_substream_t * substream, |
548 | snd_pcm_hw_params_t * hw_params) | |
5f7591c0 | 549 | { |
e8b23c02 | 550 | return 0; |
bd15eba3 | 551 | |
5f7591c0 NS |
552 | } |
553 | ||
b2c15ea9 RC |
554 | /* |
555 | * ALSA hardware release | |
556 | * | |
557 | * - One of the ALSA capture callbacks. | |
558 | * | |
559 | * Called after closing the device, but before snd_card_saa7134_capture_close | |
560 | * Usually used in ALSA to free the DMA, but since we don't use the | |
4aabf633 | 561 | * ALSA DMA it does nothing |
b2c15ea9 RC |
562 | * |
563 | */ | |
564 | ||
bd15eba3 | 565 | static int snd_card_saa7134_hw_free(snd_pcm_substream_t * substream) |
5f7591c0 | 566 | { |
e8b23c02 | 567 | return 0; |
5f7591c0 NS |
568 | } |
569 | ||
b2c15ea9 RC |
570 | /* |
571 | * DMA buffer release | |
572 | * | |
573 | * Called after closing the device, during snd_card_saa7134_capture_close | |
574 | * | |
575 | */ | |
576 | ||
bd15eba3 | 577 | static int dsp_buffer_free(struct saa7134_dev *dev) |
5f7591c0 | 578 | { |
b54134be | 579 | if (!dev->dmasound.blksize) |
4ac97914 | 580 | BUG(); |
5f7591c0 | 581 | |
b54134be | 582 | videobuf_dma_free(&dev->dmasound.dma); |
5f7591c0 | 583 | |
b54134be RC |
584 | dev->dmasound.blocks = 0; |
585 | dev->dmasound.blksize = 0; | |
586 | dev->dmasound.bufsize = 0; | |
bd15eba3 | 587 | |
4ac97914 | 588 | return 0; |
5f7591c0 NS |
589 | } |
590 | ||
b2c15ea9 RC |
591 | /* |
592 | * ALSA capture finish | |
593 | * | |
594 | * - One of the ALSA capture callbacks. | |
595 | * | |
596 | * Called after closing the device. It stops the DMA audio and releases | |
597 | * the buffers | |
598 | * | |
599 | */ | |
bd15eba3 | 600 | |
b2c15ea9 | 601 | static int snd_card_saa7134_capture_close(snd_pcm_substream_t * substream) |
5f7591c0 | 602 | { |
4ac97914 | 603 | snd_card_saa7134_t *chip = snd_pcm_substream_chip(substream); |
4aabf633 | 604 | struct saa7134_dev *dev = chip->dev; |
bd15eba3 | 605 | |
4ac97914 | 606 | /* unlock buffer */ |
b54134be RC |
607 | saa7134_pgtable_free(dev->pci,&dev->dmasound.pt); |
608 | videobuf_dma_pci_unmap(dev->pci,&dev->dmasound.dma); | |
5f7591c0 | 609 | |
4ac97914 MCC |
610 | dsp_buffer_free(dev); |
611 | return 0; | |
5f7591c0 NS |
612 | } |
613 | ||
b2c15ea9 RC |
614 | /* |
615 | * ALSA capture start | |
616 | * | |
617 | * - One of the ALSA capture callbacks. | |
618 | * | |
619 | * Called when opening the device. It creates and populates the PCM | |
620 | * structure | |
621 | * | |
622 | */ | |
5f7591c0 | 623 | |
b2c15ea9 RC |
624 | static int snd_card_saa7134_capture_open(snd_pcm_substream_t * substream) |
625 | { | |
626 | snd_pcm_runtime_t *runtime = substream->runtime; | |
4aabf633 | 627 | snd_card_saa7134_pcm_t *pcm; |
4ac97914 | 628 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
4aabf633 | 629 | struct saa7134_dev *dev = saa7134->dev; |
b2c15ea9 | 630 | int err; |
5f7591c0 | 631 | |
b54134be | 632 | down(&dev->dmasound.lock); |
5f7591c0 | 633 | |
b54134be RC |
634 | dev->dmasound.read_count = 0; |
635 | dev->dmasound.read_offset = 0; | |
bd15eba3 | 636 | |
b54134be | 637 | up(&dev->dmasound.lock); |
5f7591c0 | 638 | |
4aabf633 RC |
639 | pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); |
640 | if (pcm == NULL) | |
bd15eba3 | 641 | return -ENOMEM; |
bd15eba3 | 642 | |
4aabf633 RC |
643 | pcm->dev=saa7134->dev; |
644 | ||
645 | spin_lock_init(&pcm->lock); | |
bd15eba3 | 646 | |
4aabf633 RC |
647 | pcm->substream = substream; |
648 | runtime->private_data = pcm; | |
bd15eba3 RC |
649 | runtime->private_free = snd_card_saa7134_runtime_free; |
650 | runtime->hw = snd_card_saa7134_capture; | |
651 | ||
4ac97914 MCC |
652 | if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) |
653 | return err; | |
5f7591c0 NS |
654 | |
655 | return 0; | |
656 | } | |
657 | ||
b2c15ea9 RC |
658 | /* |
659 | * ALSA capture callbacks definition | |
660 | */ | |
5f7591c0 | 661 | |
bd15eba3 RC |
662 | static snd_pcm_ops_t snd_card_saa7134_capture_ops = { |
663 | .open = snd_card_saa7134_capture_open, | |
664 | .close = snd_card_saa7134_capture_close, | |
665 | .ioctl = snd_pcm_lib_ioctl, | |
666 | .hw_params = snd_card_saa7134_hw_params, | |
667 | .hw_free = snd_card_saa7134_hw_free, | |
668 | .prepare = snd_card_saa7134_capture_prepare, | |
669 | .trigger = snd_card_saa7134_capture_trigger, | |
670 | .pointer = snd_card_saa7134_capture_pointer, | |
5f7591c0 NS |
671 | }; |
672 | ||
b2c15ea9 RC |
673 | /* |
674 | * ALSA PCM setup | |
675 | * | |
676 | * Called when initializing the board. Sets up the name and hooks up | |
677 | * the callbacks | |
678 | * | |
679 | */ | |
680 | ||
681 | static int snd_card_saa7134_pcm(snd_card_saa7134_t *saa7134, int device) | |
bd15eba3 RC |
682 | { |
683 | snd_pcm_t *pcm; | |
684 | int err; | |
5f7591c0 | 685 | |
bd15eba3 RC |
686 | if ((err = snd_pcm_new(saa7134->card, "SAA7134 PCM", device, 0, 1, &pcm)) < 0) |
687 | return err; | |
688 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_saa7134_capture_ops); | |
689 | pcm->private_data = saa7134; | |
690 | pcm->info_flags = 0; | |
691 | strcpy(pcm->name, "SAA7134 PCM"); | |
bd15eba3 RC |
692 | return 0; |
693 | } | |
5f7591c0 | 694 | |
bd15eba3 RC |
695 | #define SAA713x_VOLUME(xname, xindex, addr) \ |
696 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ | |
697 | .info = snd_saa7134_volume_info, \ | |
698 | .get = snd_saa7134_volume_get, .put = snd_saa7134_volume_put, \ | |
699 | .private_value = addr } | |
5f7591c0 | 700 | |
bd15eba3 RC |
701 | static int snd_saa7134_volume_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo) |
702 | { | |
703 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
704 | uinfo->count = 2; | |
705 | uinfo->value.integer.min = 0; | |
706 | uinfo->value.integer.max = 20; | |
707 | return 0; | |
708 | } | |
5f7591c0 | 709 | |
bd15eba3 RC |
710 | static int snd_saa7134_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
711 | { | |
712 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); | |
bd15eba3 RC |
713 | int addr = kcontrol->private_value; |
714 | ||
bd15eba3 RC |
715 | ucontrol->value.integer.value[0] = chip->mixer_volume[addr][0]; |
716 | ucontrol->value.integer.value[1] = chip->mixer_volume[addr][1]; | |
bd15eba3 RC |
717 | return 0; |
718 | } | |
5f7591c0 | 719 | |
bd15eba3 | 720 | static int snd_saa7134_volume_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
5f7591c0 | 721 | { |
bd15eba3 RC |
722 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); |
723 | unsigned long flags; | |
724 | int change, addr = kcontrol->private_value; | |
725 | int left, right; | |
726 | ||
727 | left = ucontrol->value.integer.value[0]; | |
728 | if (left < 0) | |
729 | left = 0; | |
730 | if (left > 20) | |
731 | left = 20; | |
732 | right = ucontrol->value.integer.value[1]; | |
733 | if (right < 0) | |
734 | right = 0; | |
735 | if (right > 20) | |
736 | right = 20; | |
737 | spin_lock_irqsave(&chip->mixer_lock, flags); | |
738 | change = chip->mixer_volume[addr][0] != left || | |
4ac97914 | 739 | chip->mixer_volume[addr][1] != right; |
bd15eba3 RC |
740 | chip->mixer_volume[addr][0] = left; |
741 | chip->mixer_volume[addr][1] = right; | |
742 | spin_unlock_irqrestore(&chip->mixer_lock, flags); | |
743 | return change; | |
744 | } | |
5f7591c0 | 745 | |
bd15eba3 RC |
746 | #define SAA713x_CAPSRC(xname, xindex, addr) \ |
747 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ | |
748 | .info = snd_saa7134_capsrc_info, \ | |
749 | .get = snd_saa7134_capsrc_get, .put = snd_saa7134_capsrc_put, \ | |
750 | .private_value = addr } | |
5f7591c0 | 751 | |
bd15eba3 RC |
752 | static int snd_saa7134_capsrc_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo) |
753 | { | |
754 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
b2c15ea9 | 755 | uinfo->count = 2; |
bd15eba3 RC |
756 | uinfo->value.integer.min = 0; |
757 | uinfo->value.integer.max = 1; | |
758 | return 0; | |
759 | } | |
5f7591c0 | 760 | |
bd15eba3 RC |
761 | static int snd_saa7134_capsrc_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
762 | { | |
763 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); | |
764 | unsigned long flags; | |
765 | int addr = kcontrol->private_value; | |
766 | ||
767 | spin_lock_irqsave(&chip->mixer_lock, flags); | |
768 | ucontrol->value.integer.value[0] = chip->capture_source[addr][0]; | |
769 | ucontrol->value.integer.value[1] = chip->capture_source[addr][1]; | |
770 | spin_unlock_irqrestore(&chip->mixer_lock, flags); | |
4aabf633 | 771 | |
5f7591c0 NS |
772 | return 0; |
773 | } | |
774 | ||
bd15eba3 | 775 | static int snd_saa7134_capsrc_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
5f7591c0 | 776 | { |
bd15eba3 | 777 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); |
bd15eba3 RC |
778 | int change, addr = kcontrol->private_value; |
779 | int left, right; | |
4ac97914 | 780 | u32 anabar, xbarin; |
bd15eba3 RC |
781 | int analog_io, rate; |
782 | struct saa7134_dev *dev; | |
783 | ||
4aabf633 | 784 | dev = chip->dev; |
bd15eba3 RC |
785 | |
786 | left = ucontrol->value.integer.value[0] & 1; | |
787 | right = ucontrol->value.integer.value[1] & 1; | |
c817e763 | 788 | spin_lock_irq(&chip->mixer_lock); |
bd15eba3 | 789 | |
b2c15ea9 | 790 | change = chip->capture_source[addr][0] != left || |
4ac97914 | 791 | chip->capture_source[addr][1] != right; |
bd15eba3 RC |
792 | chip->capture_source[addr][0] = left; |
793 | chip->capture_source[addr][1] = right; | |
b54134be | 794 | dev->dmasound.input=addr; |
c817e763 | 795 | spin_unlock_irq(&chip->mixer_lock); |
bd15eba3 RC |
796 | |
797 | ||
b2c15ea9 | 798 | if (change) { |
4ac97914 | 799 | switch (dev->pci->device) { |
bd15eba3 RC |
800 | |
801 | case PCI_DEVICE_ID_PHILIPS_SAA7134: | |
4ac97914 MCC |
802 | switch (addr) { |
803 | case MIXER_ADDR_TVTUNER: | |
804 | saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0xc0); | |
805 | saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00); | |
806 | break; | |
807 | case MIXER_ADDR_LINE1: | |
808 | case MIXER_ADDR_LINE2: | |
809 | analog_io = (MIXER_ADDR_LINE1 == addr) ? 0x00 : 0x08; | |
b54134be | 810 | rate = (32000 == dev->dmasound.rate) ? 0x01 : 0x03; |
4ac97914 MCC |
811 | saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, analog_io); |
812 | saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0x80); | |
813 | saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, rate); | |
814 | break; | |
815 | } | |
816 | ||
817 | break; | |
bd15eba3 RC |
818 | case PCI_DEVICE_ID_PHILIPS_SAA7133: |
819 | case PCI_DEVICE_ID_PHILIPS_SAA7135: | |
4ac97914 | 820 | xbarin = 0x03; // adc |
bd15eba3 | 821 | anabar = 0; |
4ac97914 MCC |
822 | switch (addr) { |
823 | case MIXER_ADDR_TVTUNER: | |
824 | xbarin = 0; // Demodulator | |
825 | anabar = 2; // DACs | |
826 | break; | |
827 | case MIXER_ADDR_LINE1: | |
828 | anabar = 0; // aux1, aux1 | |
829 | break; | |
830 | case MIXER_ADDR_LINE2: | |
831 | anabar = 9; // aux2, aux2 | |
832 | break; | |
833 | } | |
bd15eba3 RC |
834 | |
835 | /* output xbar always main channel */ | |
4ac97914 | 836 | saa_dsp_writel(dev, SAA7133_DIGITAL_OUTPUT_SEL1, 0xbbbb10); |
bd15eba3 RC |
837 | |
838 | if (left || right) { // We've got data, turn the input on | |
4ac97914 MCC |
839 | saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1, xbarin); |
840 | saa_writel(SAA7133_ANALOG_IO_SELECT, anabar); | |
bd15eba3 | 841 | } else { |
4ac97914 MCC |
842 | saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1, 0); |
843 | saa_writel(SAA7133_ANALOG_IO_SELECT, 0); | |
bd15eba3 | 844 | } |
a866623c | 845 | break; |
b2c15ea9 | 846 | } |
4ac97914 | 847 | } |
bd15eba3 RC |
848 | |
849 | return change; | |
5f7591c0 NS |
850 | } |
851 | ||
bd15eba3 RC |
852 | static snd_kcontrol_new_t snd_saa7134_controls[] = { |
853 | SAA713x_VOLUME("Video Volume", 0, MIXER_ADDR_TVTUNER), | |
854 | SAA713x_CAPSRC("Video Capture Switch", 0, MIXER_ADDR_TVTUNER), | |
855 | SAA713x_VOLUME("Line Volume", 1, MIXER_ADDR_LINE1), | |
856 | SAA713x_CAPSRC("Line Capture Switch", 1, MIXER_ADDR_LINE1), | |
857 | SAA713x_VOLUME("Line Volume", 2, MIXER_ADDR_LINE2), | |
858 | SAA713x_CAPSRC("Line Capture Switch", 2, MIXER_ADDR_LINE2), | |
859 | }; | |
5f7591c0 | 860 | |
b2c15ea9 RC |
861 | /* |
862 | * ALSA mixer setup | |
863 | * | |
864 | * Called when initializing the board. Sets up the name and hooks up | |
865 | * the callbacks | |
866 | * | |
867 | */ | |
868 | ||
869 | static int snd_card_saa7134_new_mixer(snd_card_saa7134_t * chip) | |
bd15eba3 RC |
870 | { |
871 | snd_card_t *card = chip->card; | |
872 | unsigned int idx; | |
873 | int err; | |
874 | ||
875 | snd_assert(chip != NULL, return -EINVAL); | |
876 | strcpy(card->mixername, "SAA7134 Mixer"); | |
5f7591c0 | 877 | |
bd15eba3 RC |
878 | for (idx = 0; idx < ARRAY_SIZE(snd_saa7134_controls); idx++) { |
879 | if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_saa7134_controls[idx], chip))) < 0) | |
880 | return err; | |
881 | } | |
882 | return 0; | |
883 | } | |
884 | ||
c817e763 | 885 | static void snd_saa7134_free(snd_card_t * card) |
5f7591c0 | 886 | { |
c817e763 | 887 | return; |
5f7591c0 NS |
888 | } |
889 | ||
bd15eba3 | 890 | static int snd_saa7134_dev_free(snd_device_t *device) |
5f7591c0 | 891 | { |
4ac97914 | 892 | snd_card_saa7134_t *chip = device->device_data; |
c817e763 | 893 | |
4aabf633 RC |
894 | if (chip->dev->dmasound.priv_data == NULL) |
895 | return 0; | |
896 | ||
c817e763 RC |
897 | if (chip->irq >= 0) { |
898 | synchronize_irq(chip->irq); | |
4aabf633 | 899 | free_irq(chip->irq, &chip->dev->dmasound); |
c817e763 RC |
900 | } |
901 | ||
4aabf633 RC |
902 | chip->dev->dmasound.priv_data = NULL; |
903 | ||
c817e763 | 904 | return 0; |
bd15eba3 | 905 | } |
5f7591c0 | 906 | |
b2c15ea9 RC |
907 | /* |
908 | * ALSA initialization | |
909 | * | |
c817e763 RC |
910 | * Called by the init routine, once for each saa7134 device present, |
911 | * it creates the basic structures and registers the ALSA devices | |
b2c15ea9 RC |
912 | * |
913 | */ | |
914 | ||
4aabf633 | 915 | int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum) |
bd15eba3 | 916 | { |
79dd0c69 | 917 | |
bd15eba3 | 918 | snd_card_t *card; |
b2c15ea9 | 919 | snd_card_saa7134_t *chip; |
bd15eba3 | 920 | int err; |
4ac97914 MCC |
921 | static snd_device_ops_t ops = { |
922 | .dev_free = snd_saa7134_dev_free, | |
923 | }; | |
5f7591c0 | 924 | |
79dd0c69 | 925 | |
4aabf633 | 926 | if (devnum >= SNDRV_CARDS) |
4ac97914 | 927 | return -ENODEV; |
4aabf633 | 928 | if (!enable[devnum]) |
bd15eba3 | 929 | return -ENODEV; |
b2c15ea9 | 930 | |
4aabf633 | 931 | card = snd_card_new(index[devnum], id[devnum], THIS_MODULE, sizeof(snd_card_saa7134_t)); |
b54134be | 932 | |
bd15eba3 RC |
933 | if (card == NULL) |
934 | return -ENOMEM; | |
5f7591c0 | 935 | |
bd15eba3 | 936 | strcpy(card->driver, "SAA7134"); |
5f7591c0 | 937 | |
bd15eba3 | 938 | /* Card "creation" */ |
b2c15ea9 | 939 | |
c817e763 RC |
940 | card->private_free = snd_saa7134_free; |
941 | chip = (snd_card_saa7134_t *) card->private_data; | |
5f7591c0 | 942 | |
4ac97914 | 943 | spin_lock_init(&chip->lock); |
b54134be | 944 | spin_lock_init(&chip->mixer_lock); |
5f7591c0 | 945 | |
4aabf633 | 946 | chip->dev = dev; |
5f7591c0 | 947 | |
4ac97914 | 948 | chip->card = card; |
b2c15ea9 | 949 | |
4aabf633 RC |
950 | chip->pci = dev->pci; |
951 | chip->irq = dev->pci->irq; | |
952 | chip->iobase = pci_resource_start(dev->pci, 0); | |
953 | ||
5f7591c0 | 954 | |
4aabf633 RC |
955 | err = request_irq(dev->pci->irq, saa7134_alsa_irq, |
956 | SA_SHIRQ | SA_INTERRUPT, dev->name, | |
957 | (void*) &dev->dmasound); | |
79dd0c69 RC |
958 | |
959 | if (err < 0) { | |
960 | printk(KERN_ERR "%s: can't get IRQ %d for ALSA\n", | |
4aabf633 | 961 | dev->name, dev->pci->irq); |
b54134be | 962 | goto __nodev; |
79dd0c69 RC |
963 | } |
964 | ||
4aabf633 RC |
965 | init_MUTEX(&dev->dmasound.lock); |
966 | ||
4ac97914 | 967 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { |
b54134be | 968 | goto __nodev; |
4ac97914 | 969 | } |
5f7591c0 | 970 | |
bd15eba3 RC |
971 | if ((err = snd_card_saa7134_new_mixer(chip)) < 0) |
972 | goto __nodev; | |
5f7591c0 | 973 | |
bd15eba3 RC |
974 | if ((err = snd_card_saa7134_pcm(chip, 0)) < 0) |
975 | goto __nodev; | |
b2c15ea9 | 976 | |
bd15eba3 | 977 | snd_card_set_dev(card, &chip->pci->dev); |
5f7591c0 | 978 | |
bd15eba3 | 979 | /* End of "creation" */ |
5f7591c0 | 980 | |
bd15eba3 | 981 | strcpy(card->shortname, "SAA7134"); |
4ac97914 | 982 | sprintf(card->longname, "%s at 0x%lx irq %d", |
4aabf633 | 983 | chip->dev->name, chip->iobase, chip->irq); |
5f7591c0 | 984 | |
bd15eba3 | 985 | if ((err = snd_card_register(card)) == 0) { |
4aabf633 | 986 | snd_saa7134_cards[devnum] = card; |
bd15eba3 RC |
987 | return 0; |
988 | } | |
989 | ||
990 | __nodev: | |
991 | snd_card_free(card); | |
bd15eba3 | 992 | return err; |
5f7591c0 NS |
993 | } |
994 | ||
79dd0c69 RC |
995 | /* |
996 | * Module initializer | |
997 | * | |
998 | * Loops through present saa7134 cards, and assigns an ALSA device | |
999 | * to each one | |
1000 | * | |
1001 | */ | |
1002 | ||
1003 | static int saa7134_alsa_init(void) | |
1004 | { | |
4aabf633 | 1005 | struct saa7134_dev *dev = NULL; |
c817e763 | 1006 | struct list_head *list; |
79dd0c69 | 1007 | |
c817e763 | 1008 | position = 0; |
79dd0c69 | 1009 | |
c817e763 RC |
1010 | printk(KERN_INFO "saa7134 ALSA driver for DMA sound loaded\n"); |
1011 | ||
1012 | list_for_each(list,&saa7134_devlist) { | |
4aabf633 RC |
1013 | dev = list_entry(list, struct saa7134_dev, devlist); |
1014 | if (dev->dmasound.priv_data == NULL) { | |
1015 | dev->dmasound.priv_data = dev; | |
1016 | alsa_card_saa7134_create(dev,position); | |
1017 | position++; | |
1018 | } else { | |
1019 | printk(KERN_ERR "saa7134 ALSA: DMA sound is being handled by OSS. ignoring %s\n",dev->name); | |
1020 | return -EBUSY; | |
1021 | } | |
c817e763 | 1022 | } |
79dd0c69 | 1023 | |
4aabf633 | 1024 | if (dev == NULL) |
79dd0c69 RC |
1025 | printk(KERN_INFO "saa7134 ALSA: no saa7134 cards found\n"); |
1026 | ||
1027 | return 0; | |
79dd0c69 RC |
1028 | } |
1029 | ||
1030 | /* | |
1031 | * Module destructor | |
1032 | */ | |
1033 | ||
1034 | void saa7134_alsa_exit(void) | |
5f7591c0 | 1035 | { |
4ac97914 | 1036 | int idx; |
b54134be | 1037 | |
79dd0c69 | 1038 | for (idx = 0; idx < SNDRV_CARDS; idx++) { |
4ac97914 | 1039 | snd_card_free(snd_saa7134_cards[idx]); |
bd15eba3 | 1040 | } |
b54134be | 1041 | |
79dd0c69 | 1042 | printk(KERN_INFO "saa7134 ALSA driver for DMA sound unloaded\n"); |
b54134be | 1043 | |
79dd0c69 | 1044 | return; |
5f7591c0 | 1045 | } |
79dd0c69 RC |
1046 | |
1047 | module_init(saa7134_alsa_init); | |
1048 | module_exit(saa7134_alsa_exit); | |
1049 | MODULE_LICENSE("GPL"); | |
1050 | MODULE_AUTHOR("Ricardo Cerqueira"); |