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 | ||
bd15eba3 RC |
23 | #include <linux/init.h> |
24 | #include <linux/slab.h> | |
25 | #include <linux/time.h> | |
26 | #include <linux/wait.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/module.h> | |
d21838dd | 29 | #include <sound/driver.h> |
5f7591c0 | 30 | #include <sound/core.h> |
5f7591c0 | 31 | #include <sound/control.h> |
bd15eba3 | 32 | #include <sound/pcm.h> |
d5ee43af | 33 | #include <sound/pcm_params.h> |
5f7591c0 | 34 | #include <sound/initval.h> |
871242b9 | 35 | #include <linux/interrupt.h> |
5f7591c0 NS |
36 | |
37 | #include "saa7134.h" | |
38 | #include "saa7134-reg.h" | |
39 | ||
79dd0c69 RC |
40 | static unsigned int debug = 0; |
41 | module_param(debug, int, 0644); | |
42 | MODULE_PARM_DESC(debug,"enable debug messages [alsa]"); | |
43 | ||
b2c15ea9 RC |
44 | /* |
45 | * Configuration macros | |
46 | */ | |
47 | ||
bd15eba3 | 48 | /* defaults */ |
b2c15ea9 RC |
49 | #define MIXER_ADDR_TVTUNER 0 |
50 | #define MIXER_ADDR_LINE1 1 | |
51 | #define MIXER_ADDR_LINE2 2 | |
52 | #define MIXER_ADDR_LAST 2 | |
5f7591c0 | 53 | |
674434c6 | 54 | |
bd15eba3 RC |
55 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
56 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
ede22415 | 57 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; |
bd15eba3 | 58 | |
b54134be | 59 | module_param_array(index, int, NULL, 0444); |
ede22415 | 60 | module_param_array(enable, int, NULL, 0444); |
b54134be | 61 | MODULE_PARM_DESC(index, "Index value for SAA7134 capture interface(s)."); |
ede22415 | 62 | MODULE_PARM_DESC(enable, "Enable (or not) the SAA7134 capture interface(s)."); |
b54134be | 63 | |
79dd0c69 | 64 | #define dprintk(fmt, arg...) if (debug) \ |
f85c657f | 65 | printk(KERN_DEBUG "%s/alsa: " fmt, dev->name , ##arg) |
674434c6 MCC |
66 | |
67 | ||
bd15eba3 | 68 | |
b2c15ea9 RC |
69 | /* |
70 | * Main chip structure | |
71 | */ | |
674434c6 | 72 | |
bd15eba3 | 73 | typedef struct snd_card_saa7134 { |
f7cbb7fc | 74 | struct snd_card *card; |
bd15eba3 RC |
75 | spinlock_t mixer_lock; |
76 | int mixer_volume[MIXER_ADDR_LAST+1][2]; | |
77 | int capture_source[MIXER_ADDR_LAST+1][2]; | |
4ac97914 | 78 | struct pci_dev *pci; |
4aabf633 | 79 | struct saa7134_dev *dev; |
bd15eba3 | 80 | |
4ac97914 MCC |
81 | unsigned long iobase; |
82 | int irq; | |
bd15eba3 RC |
83 | |
84 | spinlock_t lock; | |
85 | } snd_card_saa7134_t; | |
86 | ||
07eef6ce NS |
87 | |
88 | ||
b2c15ea9 RC |
89 | /* |
90 | * PCM structure | |
91 | */ | |
92 | ||
bd15eba3 | 93 | typedef struct snd_card_saa7134_pcm { |
4aabf633 | 94 | struct saa7134_dev *dev; |
bd15eba3 RC |
95 | |
96 | spinlock_t lock; | |
4aabf633 | 97 | |
f7cbb7fc | 98 | struct snd_pcm_substream *substream; |
bd15eba3 | 99 | } snd_card_saa7134_pcm_t; |
5f7591c0 | 100 | |
f7cbb7fc | 101 | static struct snd_card *snd_saa7134_cards[SNDRV_CARDS]; |
5f7591c0 | 102 | |
79dd0c69 | 103 | |
b2c15ea9 RC |
104 | /* |
105 | * saa7134 DMA audio stop | |
106 | * | |
107 | * Called when the capture device is released or the buffer overflows | |
108 | * | |
c817e763 | 109 | * - Copied verbatim from saa7134-oss's dsp_dma_stop. |
b2c15ea9 RC |
110 | * |
111 | */ | |
112 | ||
bd15eba3 RC |
113 | static void saa7134_dma_stop(struct saa7134_dev *dev) |
114 | { | |
b54134be RC |
115 | dev->dmasound.dma_blk = -1; |
116 | dev->dmasound.dma_running = 0; | |
4ac97914 | 117 | saa7134_set_dmabits(dev); |
bd15eba3 | 118 | } |
5f7591c0 | 119 | |
b2c15ea9 RC |
120 | /* |
121 | * saa7134 DMA audio start | |
122 | * | |
123 | * Called when preparing the capture device for use | |
124 | * | |
c817e763 | 125 | * - Copied verbatim from saa7134-oss's dsp_dma_start. |
b2c15ea9 RC |
126 | * |
127 | */ | |
128 | ||
bd15eba3 RC |
129 | static void saa7134_dma_start(struct saa7134_dev *dev) |
130 | { | |
b54134be RC |
131 | dev->dmasound.dma_blk = 0; |
132 | dev->dmasound.dma_running = 1; | |
4ac97914 | 133 | saa7134_set_dmabits(dev); |
bd15eba3 | 134 | } |
5f7591c0 | 135 | |
b2c15ea9 RC |
136 | /* |
137 | * saa7134 audio DMA IRQ handler | |
138 | * | |
139 | * Called whenever we get an SAA7134_IRQ_REPORT_DONE_RA3 interrupt | |
140 | * Handles shifting between the 2 buffers, manages the read counters, | |
141 | * and notifies ALSA when periods elapse | |
142 | * | |
143 | * - Mostly copied from saa7134-oss's saa7134_irq_oss_done. | |
144 | * | |
145 | */ | |
146 | ||
943a4902 AB |
147 | static void saa7134_irq_alsa_done(struct saa7134_dev *dev, |
148 | unsigned long status) | |
bd15eba3 RC |
149 | { |
150 | int next_blk, reg = 0; | |
5f7591c0 | 151 | |
bd15eba3 | 152 | spin_lock(&dev->slock); |
b54134be | 153 | if (UNSET == dev->dmasound.dma_blk) { |
bd15eba3 RC |
154 | dprintk("irq: recording stopped\n"); |
155 | goto done; | |
156 | } | |
157 | if (0 != (status & 0x0f000000)) | |
158 | dprintk("irq: lost %ld\n", (status >> 24) & 0x0f); | |
159 | if (0 == (status & 0x10000000)) { | |
160 | /* odd */ | |
b54134be | 161 | if (0 == (dev->dmasound.dma_blk & 0x01)) |
bd15eba3 RC |
162 | reg = SAA7134_RS_BA1(6); |
163 | } else { | |
164 | /* even */ | |
b54134be | 165 | if (1 == (dev->dmasound.dma_blk & 0x01)) |
bd15eba3 RC |
166 | reg = SAA7134_RS_BA2(6); |
167 | } | |
168 | if (0 == reg) { | |
169 | dprintk("irq: field oops [%s]\n", | |
170 | (status & 0x10000000) ? "even" : "odd"); | |
171 | goto done; | |
172 | } | |
5f7591c0 | 173 | |
b54134be RC |
174 | if (dev->dmasound.read_count >= dev->dmasound.blksize * (dev->dmasound.blocks-2)) { |
175 | dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count, | |
176 | dev->dmasound.bufsize, dev->dmasound.blocks); | |
d5ee43af | 177 | spin_unlock(&dev->slock); |
b54134be | 178 | snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN); |
d5ee43af | 179 | return; |
bd15eba3 | 180 | } |
5f7591c0 | 181 | |
4ac97914 | 182 | /* next block addr */ |
b54134be RC |
183 | next_blk = (dev->dmasound.dma_blk + 2) % dev->dmasound.blocks; |
184 | saa_writel(reg,next_blk * dev->dmasound.blksize); | |
79dd0c69 | 185 | if (debug > 2) |
4ac97914 MCC |
186 | dprintk("irq: ok, %s, next_blk=%d, addr=%x, blocks=%u, size=%u, read=%u\n", |
187 | (status & 0x10000000) ? "even" : "odd ", next_blk, | |
b54134be | 188 | next_blk * dev->dmasound.blksize, dev->dmasound.blocks, dev->dmasound.blksize, dev->dmasound.read_count); |
5f7591c0 | 189 | |
4ac97914 | 190 | /* update status & wake waiting readers */ |
b54134be RC |
191 | dev->dmasound.dma_blk = (dev->dmasound.dma_blk + 1) % dev->dmasound.blocks; |
192 | dev->dmasound.read_count += dev->dmasound.blksize; | |
5f7591c0 | 193 | |
b54134be | 194 | dev->dmasound.recording_on = reg; |
5f7591c0 | 195 | |
b54134be | 196 | if (dev->dmasound.read_count >= snd_pcm_lib_period_bytes(dev->dmasound.substream)) { |
4ac97914 | 197 | spin_unlock(&dev->slock); |
b54134be | 198 | snd_pcm_period_elapsed(dev->dmasound.substream); |
4ac97914 | 199 | spin_lock(&dev->slock); |
bd15eba3 | 200 | } |
4aabf633 | 201 | |
bd15eba3 | 202 | done: |
4ac97914 | 203 | spin_unlock(&dev->slock); |
5f7591c0 | 204 | |
bd15eba3 | 205 | } |
5f7591c0 | 206 | |
79dd0c69 RC |
207 | /* |
208 | * IRQ request handler | |
209 | * | |
210 | * Runs along with saa7134's IRQ handler, discards anything that isn't | |
211 | * DMA sound | |
212 | * | |
213 | */ | |
214 | ||
215 | static irqreturn_t saa7134_alsa_irq(int irq, void *dev_id, struct pt_regs *regs) | |
216 | { | |
afd1a0c9 MCC |
217 | struct saa7134_dmasound *dmasound = dev_id; |
218 | struct saa7134_dev *dev = dmasound->priv_data; | |
4aabf633 | 219 | |
79dd0c69 RC |
220 | unsigned long report, status; |
221 | int loop, handled = 0; | |
222 | ||
223 | for (loop = 0; loop < 10; loop++) { | |
224 | report = saa_readl(SAA7134_IRQ_REPORT); | |
225 | status = saa_readl(SAA7134_IRQ_STATUS); | |
226 | ||
227 | if (report & SAA7134_IRQ_REPORT_DONE_RA3) { | |
228 | handled = 1; | |
229 | saa_writel(SAA7134_IRQ_REPORT,report); | |
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 | ||
240 | out: | |
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 | 254 | static 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 | 288 | static 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 | ||
309 | static int dsp_buffer_free(struct saa7134_dev *dev) | |
310 | { | |
311 | if (!dev->dmasound.blksize) | |
312 | BUG(); | |
313 | ||
314 | videobuf_dma_free(&dev->dmasound.dma); | |
315 | ||
316 | dev->dmasound.blocks = 0; | |
317 | dev->dmasound.blksize = 0; | |
318 | dev->dmasound.bufsize = 0; | |
319 | ||
320 | return 0; | |
321 | } | |
322 | ||
323 | ||
b2c15ea9 RC |
324 | /* |
325 | * ALSA PCM preparation | |
326 | * | |
327 | * - One of the ALSA capture callbacks. | |
328 | * | |
329 | * Called right after the capture device is opened, this function configures | |
330 | * the buffer using the previously defined functions, allocates the memory, | |
331 | * sets up the hardware registers, and then starts the DMA. When this function | |
332 | * returns, the audio should be flowing. | |
333 | * | |
334 | */ | |
5f7591c0 | 335 | |
f7cbb7fc | 336 | static int snd_card_saa7134_capture_prepare(struct snd_pcm_substream * substream) |
5f7591c0 | 337 | { |
f7cbb7fc | 338 | struct snd_pcm_runtime *runtime = substream->runtime; |
d5ee43af | 339 | int bswap, sign; |
4ac97914 | 340 | u32 fmt, control; |
bd15eba3 | 341 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
4ac97914 | 342 | struct saa7134_dev *dev; |
4aabf633 | 343 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
bd15eba3 | 344 | |
4aabf633 | 345 | pcm->dev->dmasound.substream = substream; |
bd15eba3 | 346 | |
d5ee43af | 347 | dev = saa7134->dev; |
bd15eba3 | 348 | |
d5ee43af | 349 | if (snd_pcm_format_width(runtime->format) == 8) |
bd15eba3 | 350 | fmt = 0x00; |
d5ee43af | 351 | else |
bd15eba3 | 352 | fmt = 0x01; |
4ac97914 | 353 | |
d5ee43af | 354 | if (snd_pcm_format_signed(runtime->format)) |
bd15eba3 | 355 | sign = 1; |
d5ee43af | 356 | else |
bd15eba3 | 357 | sign = 0; |
bd15eba3 | 358 | |
d5ee43af RC |
359 | if (snd_pcm_format_big_endian(runtime->format)) |
360 | bswap = 1; | |
361 | else | |
362 | bswap = 0; | |
4ac97914 MCC |
363 | |
364 | switch (dev->pci->device) { | |
365 | case PCI_DEVICE_ID_PHILIPS_SAA7134: | |
366 | if (1 == runtime->channels) | |
367 | fmt |= (1 << 3); | |
368 | if (2 == runtime->channels) | |
369 | fmt |= (3 << 3); | |
370 | if (sign) | |
371 | fmt |= 0x04; | |
372 | ||
b54134be RC |
373 | fmt |= (MIXER_ADDR_TVTUNER == dev->dmasound.input) ? 0xc0 : 0x80; |
374 | saa_writeb(SAA7134_NUM_SAMPLES0, ((dev->dmasound.blksize - 1) & 0x0000ff)); | |
375 | saa_writeb(SAA7134_NUM_SAMPLES1, ((dev->dmasound.blksize - 1) & 0x00ff00) >> 8); | |
376 | saa_writeb(SAA7134_NUM_SAMPLES2, ((dev->dmasound.blksize - 1) & 0xff0000) >> 16); | |
4ac97914 MCC |
377 | saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt); |
378 | ||
379 | break; | |
380 | case PCI_DEVICE_ID_PHILIPS_SAA7133: | |
381 | case PCI_DEVICE_ID_PHILIPS_SAA7135: | |
382 | if (1 == runtime->channels) | |
383 | fmt |= (1 << 4); | |
384 | if (2 == runtime->channels) | |
385 | fmt |= (2 << 4); | |
386 | if (!sign) | |
387 | fmt |= 0x04; | |
b54134be | 388 | saa_writel(SAA7133_NUM_SAMPLES, dev->dmasound.blksize -1); |
4ac97914 | 389 | saa_writel(SAA7133_AUDIO_CHANNEL, 0x543210 | (fmt << 24)); |
4ac97914 MCC |
390 | break; |
391 | } | |
392 | ||
393 | dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n", | |
394 | runtime->format, runtime->channels, fmt, | |
395 | bswap ? 'b' : '-'); | |
396 | /* dma: setup channel 6 (= AUDIO) */ | |
397 | control = SAA7134_RS_CONTROL_BURST_16 | | |
398 | SAA7134_RS_CONTROL_ME | | |
b54134be | 399 | (dev->dmasound.pt.dma >> 12); |
4ac97914 MCC |
400 | if (bswap) |
401 | control |= SAA7134_RS_CONTROL_BSWAP; | |
bd15eba3 | 402 | |
4ac97914 | 403 | saa_writel(SAA7134_RS_BA1(6),0); |
b54134be | 404 | saa_writel(SAA7134_RS_BA2(6),dev->dmasound.blksize); |
4ac97914 MCC |
405 | saa_writel(SAA7134_RS_PITCH(6),0); |
406 | saa_writel(SAA7134_RS_CONTROL(6),control); | |
bd15eba3 | 407 | |
b54134be | 408 | dev->dmasound.rate = runtime->rate; |
5f7591c0 | 409 | |
bd15eba3 | 410 | return 0; |
5f7591c0 | 411 | |
bd15eba3 | 412 | } |
5f7591c0 | 413 | |
b2c15ea9 RC |
414 | /* |
415 | * ALSA pointer fetching | |
416 | * | |
417 | * - One of the ALSA capture callbacks. | |
418 | * | |
419 | * Called whenever a period elapses, it must return the current hardware | |
420 | * position of the buffer. | |
421 | * Also resets the read counter used to prevent overruns | |
422 | * | |
423 | */ | |
5f7591c0 | 424 | |
f7cbb7fc TI |
425 | static snd_pcm_uframes_t |
426 | snd_card_saa7134_capture_pointer(struct snd_pcm_substream * substream) | |
5f7591c0 | 427 | { |
f7cbb7fc | 428 | struct snd_pcm_runtime *runtime = substream->runtime; |
4aabf633 RC |
429 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
430 | struct saa7134_dev *dev=pcm->dev; | |
5f7591c0 | 431 | |
b54134be RC |
432 | if (dev->dmasound.read_count) { |
433 | dev->dmasound.read_count -= snd_pcm_lib_period_bytes(substream); | |
434 | dev->dmasound.read_offset += snd_pcm_lib_period_bytes(substream); | |
435 | if (dev->dmasound.read_offset == dev->dmasound.bufsize) | |
436 | dev->dmasound.read_offset = 0; | |
bd15eba3 | 437 | } |
5f7591c0 | 438 | |
b54134be | 439 | return bytes_to_frames(runtime, dev->dmasound.read_offset); |
bd15eba3 | 440 | } |
5f7591c0 | 441 | |
b2c15ea9 RC |
442 | /* |
443 | * ALSA hardware capabilities definition | |
444 | */ | |
5f7591c0 | 445 | |
f7cbb7fc | 446 | static struct snd_pcm_hardware snd_card_saa7134_capture = |
5f7591c0 | 447 | { |
4ac97914 | 448 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
f2421ca3 MCC |
449 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
450 | SNDRV_PCM_INFO_MMAP_VALID), | |
b54134be RC |
451 | .formats = SNDRV_PCM_FMTBIT_S16_LE | \ |
452 | SNDRV_PCM_FMTBIT_S16_BE | \ | |
453 | SNDRV_PCM_FMTBIT_S8 | \ | |
454 | SNDRV_PCM_FMTBIT_U8 | \ | |
455 | SNDRV_PCM_FMTBIT_U16_LE | \ | |
456 | SNDRV_PCM_FMTBIT_U16_BE, | |
457 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000, | |
458 | .rate_min = 32000, | |
459 | .rate_max = 48000, | |
460 | .channels_min = 1, | |
461 | .channels_max = 2, | |
462 | .buffer_bytes_max = (256*1024), | |
bd15eba3 | 463 | .period_bytes_min = 64, |
b54134be RC |
464 | .period_bytes_max = (256*1024), |
465 | .periods_min = 2, | |
466 | .periods_max = 1024, | |
bd15eba3 | 467 | }; |
5f7591c0 | 468 | |
f7cbb7fc | 469 | static void snd_card_saa7134_runtime_free(struct snd_pcm_runtime *runtime) |
bd15eba3 | 470 | { |
4aabf633 | 471 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
bd15eba3 | 472 | |
4aabf633 | 473 | kfree(pcm); |
5f7591c0 NS |
474 | } |
475 | ||
bd15eba3 | 476 | |
b2c15ea9 RC |
477 | /* |
478 | * ALSA hardware params | |
479 | * | |
480 | * - One of the ALSA capture callbacks. | |
481 | * | |
482 | * Called on initialization, right before the PCM preparation | |
b2c15ea9 RC |
483 | * |
484 | */ | |
485 | ||
f7cbb7fc TI |
486 | static int snd_card_saa7134_hw_params(struct snd_pcm_substream * substream, |
487 | struct snd_pcm_hw_params * hw_params) | |
5f7591c0 | 488 | { |
d5ee43af RC |
489 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
490 | struct saa7134_dev *dev; | |
491 | unsigned int period_size, periods; | |
492 | int err; | |
493 | ||
494 | period_size = params_period_bytes(hw_params); | |
495 | periods = params_periods(hw_params); | |
496 | ||
497 | snd_assert(period_size >= 0x100 && period_size <= 0x10000, | |
498 | return -EINVAL); | |
499 | snd_assert(periods >= 2, return -EINVAL); | |
500 | snd_assert(period_size * periods <= 1024 * 1024, return -EINVAL); | |
501 | ||
502 | dev = saa7134->dev; | |
503 | ||
504 | if (dev->dmasound.blocks == periods && | |
505 | dev->dmasound.blksize == period_size) | |
506 | return 0; | |
507 | ||
508 | /* release the old buffer */ | |
509 | if (substream->runtime->dma_area) { | |
510 | saa7134_pgtable_free(dev->pci, &dev->dmasound.pt); | |
511 | videobuf_dma_pci_unmap(dev->pci, &dev->dmasound.dma); | |
512 | dsp_buffer_free(dev); | |
513 | substream->runtime->dma_area = NULL; | |
514 | } | |
515 | dev->dmasound.blocks = periods; | |
516 | dev->dmasound.blksize = period_size; | |
517 | dev->dmasound.bufsize = period_size * periods; | |
518 | ||
519 | err = dsp_buffer_init(dev); | |
520 | if (0 != err) { | |
521 | dev->dmasound.blocks = 0; | |
522 | dev->dmasound.blksize = 0; | |
523 | dev->dmasound.bufsize = 0; | |
524 | return err; | |
525 | } | |
526 | ||
527 | if (0 != (err = videobuf_dma_pci_map(dev->pci, &dev->dmasound.dma))) { | |
528 | dsp_buffer_free(dev); | |
529 | return err; | |
530 | } | |
531 | if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->dmasound.pt))) { | |
532 | videobuf_dma_pci_unmap(dev->pci, &dev->dmasound.dma); | |
533 | dsp_buffer_free(dev); | |
534 | return err; | |
535 | } | |
536 | if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->dmasound.pt, | |
537 | dev->dmasound.dma.sglist, | |
538 | dev->dmasound.dma.sglen, | |
539 | 0))) { | |
540 | saa7134_pgtable_free(dev->pci, &dev->dmasound.pt); | |
541 | videobuf_dma_pci_unmap(dev->pci, &dev->dmasound.dma); | |
542 | dsp_buffer_free(dev); | |
543 | return err; | |
544 | } | |
545 | ||
546 | /* I should be able to use runtime->dma_addr in the control | |
547 | byte, but it doesn't work. So I allocate the DMA using the | |
548 | V4L functions, and force ALSA to use that as the DMA area */ | |
549 | ||
550 | substream->runtime->dma_area = dev->dmasound.dma.vmalloc; | |
551 | ||
552 | return 1; | |
bd15eba3 | 553 | |
5f7591c0 NS |
554 | } |
555 | ||
b2c15ea9 RC |
556 | /* |
557 | * ALSA hardware release | |
558 | * | |
559 | * - One of the ALSA capture callbacks. | |
560 | * | |
561 | * Called after closing the device, but before snd_card_saa7134_capture_close | |
d5ee43af | 562 | * It stops the DMA audio and releases the buffers. |
b2c15ea9 RC |
563 | * |
564 | */ | |
565 | ||
f7cbb7fc | 566 | static int snd_card_saa7134_hw_free(struct snd_pcm_substream * substream) |
5f7591c0 | 567 | { |
d5ee43af RC |
568 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
569 | struct saa7134_dev *dev; | |
5f7591c0 | 570 | |
d5ee43af | 571 | dev = saa7134->dev; |
5f7591c0 | 572 | |
d5ee43af RC |
573 | if (substream->runtime->dma_area) { |
574 | saa7134_pgtable_free(dev->pci, &dev->dmasound.pt); | |
575 | videobuf_dma_pci_unmap(dev->pci, &dev->dmasound.dma); | |
576 | dsp_buffer_free(dev); | |
577 | substream->runtime->dma_area = NULL; | |
578 | } | |
bd15eba3 | 579 | |
4ac97914 | 580 | return 0; |
5f7591c0 NS |
581 | } |
582 | ||
b2c15ea9 RC |
583 | /* |
584 | * ALSA capture finish | |
585 | * | |
586 | * - One of the ALSA capture callbacks. | |
587 | * | |
d5ee43af | 588 | * Called after closing the device. |
b2c15ea9 RC |
589 | * |
590 | */ | |
bd15eba3 | 591 | |
f7cbb7fc | 592 | static int snd_card_saa7134_capture_close(struct snd_pcm_substream * substream) |
5f7591c0 | 593 | { |
4ac97914 | 594 | return 0; |
5f7591c0 NS |
595 | } |
596 | ||
b2c15ea9 RC |
597 | /* |
598 | * ALSA capture start | |
599 | * | |
600 | * - One of the ALSA capture callbacks. | |
601 | * | |
602 | * Called when opening the device. It creates and populates the PCM | |
603 | * structure | |
604 | * | |
605 | */ | |
5f7591c0 | 606 | |
f7cbb7fc | 607 | static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream) |
b2c15ea9 | 608 | { |
f7cbb7fc | 609 | struct snd_pcm_runtime *runtime = substream->runtime; |
4aabf633 | 610 | snd_card_saa7134_pcm_t *pcm; |
4ac97914 | 611 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
4aabf633 | 612 | struct saa7134_dev *dev = saa7134->dev; |
b2c15ea9 | 613 | int err; |
5f7591c0 | 614 | |
b54134be | 615 | down(&dev->dmasound.lock); |
5f7591c0 | 616 | |
b54134be RC |
617 | dev->dmasound.read_count = 0; |
618 | dev->dmasound.read_offset = 0; | |
bd15eba3 | 619 | |
b54134be | 620 | up(&dev->dmasound.lock); |
5f7591c0 | 621 | |
4aabf633 RC |
622 | pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); |
623 | if (pcm == NULL) | |
bd15eba3 | 624 | return -ENOMEM; |
bd15eba3 | 625 | |
4aabf633 RC |
626 | pcm->dev=saa7134->dev; |
627 | ||
628 | spin_lock_init(&pcm->lock); | |
bd15eba3 | 629 | |
4aabf633 RC |
630 | pcm->substream = substream; |
631 | runtime->private_data = pcm; | |
bd15eba3 RC |
632 | runtime->private_free = snd_card_saa7134_runtime_free; |
633 | runtime->hw = snd_card_saa7134_capture; | |
634 | ||
4ac97914 MCC |
635 | if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) |
636 | return err; | |
5f7591c0 NS |
637 | |
638 | return 0; | |
639 | } | |
640 | ||
b2c15ea9 RC |
641 | /* |
642 | * ALSA capture callbacks definition | |
643 | */ | |
5f7591c0 | 644 | |
f7cbb7fc | 645 | static struct snd_pcm_ops snd_card_saa7134_capture_ops = { |
bd15eba3 RC |
646 | .open = snd_card_saa7134_capture_open, |
647 | .close = snd_card_saa7134_capture_close, | |
648 | .ioctl = snd_pcm_lib_ioctl, | |
649 | .hw_params = snd_card_saa7134_hw_params, | |
650 | .hw_free = snd_card_saa7134_hw_free, | |
651 | .prepare = snd_card_saa7134_capture_prepare, | |
652 | .trigger = snd_card_saa7134_capture_trigger, | |
653 | .pointer = snd_card_saa7134_capture_pointer, | |
5f7591c0 NS |
654 | }; |
655 | ||
b2c15ea9 RC |
656 | /* |
657 | * ALSA PCM setup | |
658 | * | |
659 | * Called when initializing the board. Sets up the name and hooks up | |
660 | * the callbacks | |
661 | * | |
662 | */ | |
663 | ||
664 | static int snd_card_saa7134_pcm(snd_card_saa7134_t *saa7134, int device) | |
bd15eba3 | 665 | { |
f7cbb7fc | 666 | struct snd_pcm *pcm; |
bd15eba3 | 667 | int err; |
5f7591c0 | 668 | |
bd15eba3 RC |
669 | if ((err = snd_pcm_new(saa7134->card, "SAA7134 PCM", device, 0, 1, &pcm)) < 0) |
670 | return err; | |
671 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_saa7134_capture_ops); | |
672 | pcm->private_data = saa7134; | |
673 | pcm->info_flags = 0; | |
674 | strcpy(pcm->name, "SAA7134 PCM"); | |
bd15eba3 RC |
675 | return 0; |
676 | } | |
5f7591c0 | 677 | |
bd15eba3 RC |
678 | #define SAA713x_VOLUME(xname, xindex, addr) \ |
679 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ | |
680 | .info = snd_saa7134_volume_info, \ | |
681 | .get = snd_saa7134_volume_get, .put = snd_saa7134_volume_put, \ | |
682 | .private_value = addr } | |
5f7591c0 | 683 | |
f7cbb7fc TI |
684 | static int snd_saa7134_volume_info(struct snd_kcontrol * kcontrol, |
685 | struct snd_ctl_elem_info * uinfo) | |
bd15eba3 RC |
686 | { |
687 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
688 | uinfo->count = 2; | |
689 | uinfo->value.integer.min = 0; | |
690 | uinfo->value.integer.max = 20; | |
691 | return 0; | |
692 | } | |
5f7591c0 | 693 | |
f7cbb7fc TI |
694 | static int snd_saa7134_volume_get(struct snd_kcontrol * kcontrol, |
695 | struct snd_ctl_elem_value * ucontrol) | |
bd15eba3 RC |
696 | { |
697 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); | |
bd15eba3 RC |
698 | int addr = kcontrol->private_value; |
699 | ||
bd15eba3 RC |
700 | ucontrol->value.integer.value[0] = chip->mixer_volume[addr][0]; |
701 | ucontrol->value.integer.value[1] = chip->mixer_volume[addr][1]; | |
bd15eba3 RC |
702 | return 0; |
703 | } | |
5f7591c0 | 704 | |
f7cbb7fc TI |
705 | static int snd_saa7134_volume_put(struct snd_kcontrol * kcontrol, |
706 | struct snd_ctl_elem_value * ucontrol) | |
5f7591c0 | 707 | { |
bd15eba3 | 708 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); |
bd15eba3 RC |
709 | int change, addr = kcontrol->private_value; |
710 | int left, right; | |
711 | ||
712 | left = ucontrol->value.integer.value[0]; | |
713 | if (left < 0) | |
714 | left = 0; | |
715 | if (left > 20) | |
716 | left = 20; | |
717 | right = ucontrol->value.integer.value[1]; | |
718 | if (right < 0) | |
719 | right = 0; | |
720 | if (right > 20) | |
721 | right = 20; | |
d5ee43af | 722 | spin_lock_irq(&chip->mixer_lock); |
bd15eba3 | 723 | change = chip->mixer_volume[addr][0] != left || |
4ac97914 | 724 | chip->mixer_volume[addr][1] != right; |
bd15eba3 RC |
725 | chip->mixer_volume[addr][0] = left; |
726 | chip->mixer_volume[addr][1] = right; | |
d5ee43af | 727 | spin_unlock_irq(&chip->mixer_lock); |
bd15eba3 RC |
728 | return change; |
729 | } | |
5f7591c0 | 730 | |
bd15eba3 RC |
731 | #define SAA713x_CAPSRC(xname, xindex, addr) \ |
732 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ | |
733 | .info = snd_saa7134_capsrc_info, \ | |
734 | .get = snd_saa7134_capsrc_get, .put = snd_saa7134_capsrc_put, \ | |
735 | .private_value = addr } | |
5f7591c0 | 736 | |
f7cbb7fc TI |
737 | static int snd_saa7134_capsrc_info(struct snd_kcontrol * kcontrol, |
738 | struct snd_ctl_elem_info * uinfo) | |
bd15eba3 RC |
739 | { |
740 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
b2c15ea9 | 741 | uinfo->count = 2; |
bd15eba3 RC |
742 | uinfo->value.integer.min = 0; |
743 | uinfo->value.integer.max = 1; | |
744 | return 0; | |
745 | } | |
5f7591c0 | 746 | |
f7cbb7fc TI |
747 | static int snd_saa7134_capsrc_get(struct snd_kcontrol * kcontrol, |
748 | struct snd_ctl_elem_value * ucontrol) | |
bd15eba3 RC |
749 | { |
750 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); | |
bd15eba3 RC |
751 | int addr = kcontrol->private_value; |
752 | ||
d5ee43af | 753 | spin_lock_irq(&chip->mixer_lock); |
bd15eba3 RC |
754 | ucontrol->value.integer.value[0] = chip->capture_source[addr][0]; |
755 | ucontrol->value.integer.value[1] = chip->capture_source[addr][1]; | |
d5ee43af | 756 | spin_unlock_irq(&chip->mixer_lock); |
4aabf633 | 757 | |
5f7591c0 NS |
758 | return 0; |
759 | } | |
760 | ||
f7cbb7fc TI |
761 | static int snd_saa7134_capsrc_put(struct snd_kcontrol * kcontrol, |
762 | struct snd_ctl_elem_value * ucontrol) | |
5f7591c0 | 763 | { |
bd15eba3 | 764 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); |
bd15eba3 RC |
765 | int change, addr = kcontrol->private_value; |
766 | int left, right; | |
4ac97914 | 767 | u32 anabar, xbarin; |
bd15eba3 RC |
768 | int analog_io, rate; |
769 | struct saa7134_dev *dev; | |
770 | ||
4aabf633 | 771 | dev = chip->dev; |
bd15eba3 RC |
772 | |
773 | left = ucontrol->value.integer.value[0] & 1; | |
774 | right = ucontrol->value.integer.value[1] & 1; | |
c817e763 | 775 | spin_lock_irq(&chip->mixer_lock); |
bd15eba3 | 776 | |
b2c15ea9 | 777 | change = chip->capture_source[addr][0] != left || |
4ac97914 | 778 | chip->capture_source[addr][1] != right; |
bd15eba3 RC |
779 | chip->capture_source[addr][0] = left; |
780 | chip->capture_source[addr][1] = right; | |
b54134be | 781 | dev->dmasound.input=addr; |
c817e763 | 782 | spin_unlock_irq(&chip->mixer_lock); |
bd15eba3 RC |
783 | |
784 | ||
b2c15ea9 | 785 | if (change) { |
4ac97914 | 786 | switch (dev->pci->device) { |
bd15eba3 RC |
787 | |
788 | case PCI_DEVICE_ID_PHILIPS_SAA7134: | |
4ac97914 MCC |
789 | switch (addr) { |
790 | case MIXER_ADDR_TVTUNER: | |
791 | saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0xc0); | |
792 | saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00); | |
793 | break; | |
794 | case MIXER_ADDR_LINE1: | |
795 | case MIXER_ADDR_LINE2: | |
796 | analog_io = (MIXER_ADDR_LINE1 == addr) ? 0x00 : 0x08; | |
b54134be | 797 | rate = (32000 == dev->dmasound.rate) ? 0x01 : 0x03; |
4ac97914 MCC |
798 | saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, analog_io); |
799 | saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0x80); | |
800 | saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, rate); | |
801 | break; | |
802 | } | |
803 | ||
804 | break; | |
bd15eba3 RC |
805 | case PCI_DEVICE_ID_PHILIPS_SAA7133: |
806 | case PCI_DEVICE_ID_PHILIPS_SAA7135: | |
4ac97914 | 807 | xbarin = 0x03; // adc |
bd15eba3 | 808 | anabar = 0; |
4ac97914 MCC |
809 | switch (addr) { |
810 | case MIXER_ADDR_TVTUNER: | |
811 | xbarin = 0; // Demodulator | |
812 | anabar = 2; // DACs | |
813 | break; | |
814 | case MIXER_ADDR_LINE1: | |
815 | anabar = 0; // aux1, aux1 | |
816 | break; | |
817 | case MIXER_ADDR_LINE2: | |
818 | anabar = 9; // aux2, aux2 | |
819 | break; | |
820 | } | |
bd15eba3 RC |
821 | |
822 | /* output xbar always main channel */ | |
4ac97914 | 823 | saa_dsp_writel(dev, SAA7133_DIGITAL_OUTPUT_SEL1, 0xbbbb10); |
bd15eba3 RC |
824 | |
825 | if (left || right) { // We've got data, turn the input on | |
4ac97914 MCC |
826 | saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1, xbarin); |
827 | saa_writel(SAA7133_ANALOG_IO_SELECT, anabar); | |
bd15eba3 | 828 | } else { |
4ac97914 MCC |
829 | saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1, 0); |
830 | saa_writel(SAA7133_ANALOG_IO_SELECT, 0); | |
bd15eba3 | 831 | } |
a866623c | 832 | break; |
b2c15ea9 | 833 | } |
4ac97914 | 834 | } |
bd15eba3 RC |
835 | |
836 | return change; | |
5f7591c0 NS |
837 | } |
838 | ||
f7cbb7fc | 839 | static struct snd_kcontrol_new snd_saa7134_controls[] = { |
bd15eba3 RC |
840 | SAA713x_VOLUME("Video Volume", 0, MIXER_ADDR_TVTUNER), |
841 | SAA713x_CAPSRC("Video Capture Switch", 0, MIXER_ADDR_TVTUNER), | |
842 | SAA713x_VOLUME("Line Volume", 1, MIXER_ADDR_LINE1), | |
843 | SAA713x_CAPSRC("Line Capture Switch", 1, MIXER_ADDR_LINE1), | |
844 | SAA713x_VOLUME("Line Volume", 2, MIXER_ADDR_LINE2), | |
845 | SAA713x_CAPSRC("Line Capture Switch", 2, MIXER_ADDR_LINE2), | |
846 | }; | |
5f7591c0 | 847 | |
b2c15ea9 RC |
848 | /* |
849 | * ALSA mixer setup | |
850 | * | |
851 | * Called when initializing the board. Sets up the name and hooks up | |
852 | * the callbacks | |
853 | * | |
854 | */ | |
855 | ||
856 | static int snd_card_saa7134_new_mixer(snd_card_saa7134_t * chip) | |
bd15eba3 | 857 | { |
f7cbb7fc | 858 | struct snd_card *card = chip->card; |
bd15eba3 RC |
859 | unsigned int idx; |
860 | int err; | |
861 | ||
862 | snd_assert(chip != NULL, return -EINVAL); | |
863 | strcpy(card->mixername, "SAA7134 Mixer"); | |
5f7591c0 | 864 | |
bd15eba3 RC |
865 | for (idx = 0; idx < ARRAY_SIZE(snd_saa7134_controls); idx++) { |
866 | if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_saa7134_controls[idx], chip))) < 0) | |
867 | return err; | |
868 | } | |
869 | return 0; | |
870 | } | |
871 | ||
f7cbb7fc | 872 | static void snd_saa7134_free(struct snd_card * card) |
5f7591c0 | 873 | { |
d5ee43af | 874 | snd_card_saa7134_t *chip = card->private_data; |
c817e763 | 875 | |
4aabf633 | 876 | if (chip->dev->dmasound.priv_data == NULL) |
d5ee43af | 877 | return; |
4aabf633 | 878 | |
c817e763 RC |
879 | if (chip->irq >= 0) { |
880 | synchronize_irq(chip->irq); | |
4aabf633 | 881 | free_irq(chip->irq, &chip->dev->dmasound); |
c817e763 RC |
882 | } |
883 | ||
4aabf633 RC |
884 | chip->dev->dmasound.priv_data = NULL; |
885 | ||
bd15eba3 | 886 | } |
5f7591c0 | 887 | |
b2c15ea9 RC |
888 | /* |
889 | * ALSA initialization | |
890 | * | |
c817e763 RC |
891 | * Called by the init routine, once for each saa7134 device present, |
892 | * it creates the basic structures and registers the ALSA devices | |
b2c15ea9 RC |
893 | * |
894 | */ | |
895 | ||
943a4902 | 896 | static int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum) |
bd15eba3 | 897 | { |
79dd0c69 | 898 | |
f7cbb7fc | 899 | struct snd_card *card; |
b2c15ea9 | 900 | snd_card_saa7134_t *chip; |
bd15eba3 | 901 | int err; |
5f7591c0 | 902 | |
79dd0c69 | 903 | |
4aabf633 | 904 | if (devnum >= SNDRV_CARDS) |
4ac97914 | 905 | return -ENODEV; |
4aabf633 | 906 | if (!enable[devnum]) |
bd15eba3 | 907 | return -ENODEV; |
b2c15ea9 | 908 | |
4aabf633 | 909 | card = snd_card_new(index[devnum], id[devnum], THIS_MODULE, sizeof(snd_card_saa7134_t)); |
b54134be | 910 | |
bd15eba3 RC |
911 | if (card == NULL) |
912 | return -ENOMEM; | |
5f7591c0 | 913 | |
bd15eba3 | 914 | strcpy(card->driver, "SAA7134"); |
5f7591c0 | 915 | |
bd15eba3 | 916 | /* Card "creation" */ |
b2c15ea9 | 917 | |
c817e763 RC |
918 | card->private_free = snd_saa7134_free; |
919 | chip = (snd_card_saa7134_t *) card->private_data; | |
5f7591c0 | 920 | |
4ac97914 | 921 | spin_lock_init(&chip->lock); |
b54134be | 922 | spin_lock_init(&chip->mixer_lock); |
5f7591c0 | 923 | |
4aabf633 | 924 | chip->dev = dev; |
5f7591c0 | 925 | |
4ac97914 | 926 | chip->card = card; |
b2c15ea9 | 927 | |
4aabf633 | 928 | chip->pci = dev->pci; |
4aabf633 RC |
929 | chip->iobase = pci_resource_start(dev->pci, 0); |
930 | ||
5f7591c0 | 931 | |
4aabf633 RC |
932 | err = request_irq(dev->pci->irq, saa7134_alsa_irq, |
933 | SA_SHIRQ | SA_INTERRUPT, dev->name, | |
934 | (void*) &dev->dmasound); | |
79dd0c69 RC |
935 | |
936 | if (err < 0) { | |
937 | printk(KERN_ERR "%s: can't get IRQ %d for ALSA\n", | |
4aabf633 | 938 | dev->name, dev->pci->irq); |
b54134be | 939 | goto __nodev; |
79dd0c69 RC |
940 | } |
941 | ||
d5ee43af | 942 | chip->irq = dev->pci->irq; |
4aabf633 | 943 | |
d5ee43af | 944 | init_MUTEX(&dev->dmasound.lock); |
5f7591c0 | 945 | |
bd15eba3 RC |
946 | if ((err = snd_card_saa7134_new_mixer(chip)) < 0) |
947 | goto __nodev; | |
5f7591c0 | 948 | |
bd15eba3 RC |
949 | if ((err = snd_card_saa7134_pcm(chip, 0)) < 0) |
950 | goto __nodev; | |
b2c15ea9 | 951 | |
bd15eba3 | 952 | snd_card_set_dev(card, &chip->pci->dev); |
5f7591c0 | 953 | |
bd15eba3 | 954 | /* End of "creation" */ |
5f7591c0 | 955 | |
bd15eba3 | 956 | strcpy(card->shortname, "SAA7134"); |
4ac97914 | 957 | sprintf(card->longname, "%s at 0x%lx irq %d", |
4aabf633 | 958 | chip->dev->name, chip->iobase, chip->irq); |
5f7591c0 | 959 | |
f5b974cb RC |
960 | printk(KERN_INFO "%s/alsa: %s registered as card %d\n",dev->name,card->longname,index[devnum]); |
961 | ||
bd15eba3 | 962 | if ((err = snd_card_register(card)) == 0) { |
4aabf633 | 963 | snd_saa7134_cards[devnum] = card; |
bd15eba3 RC |
964 | return 0; |
965 | } | |
966 | ||
967 | __nodev: | |
968 | snd_card_free(card); | |
bd15eba3 | 969 | return err; |
5f7591c0 NS |
970 | } |
971 | ||
f5b974cb RC |
972 | |
973 | static int alsa_device_init(struct saa7134_dev *dev) | |
974 | { | |
975 | dev->dmasound.priv_data = dev; | |
976 | alsa_card_saa7134_create(dev,dev->nr); | |
977 | return 1; | |
978 | } | |
979 | ||
980 | static int alsa_device_exit(struct saa7134_dev *dev) | |
981 | { | |
982 | ||
983 | snd_card_free(snd_saa7134_cards[dev->nr]); | |
984 | snd_saa7134_cards[dev->nr] = NULL; | |
985 | return 1; | |
986 | } | |
987 | ||
79dd0c69 RC |
988 | /* |
989 | * Module initializer | |
990 | * | |
991 | * Loops through present saa7134 cards, and assigns an ALSA device | |
992 | * to each one | |
993 | * | |
994 | */ | |
995 | ||
996 | static int saa7134_alsa_init(void) | |
997 | { | |
4aabf633 | 998 | struct saa7134_dev *dev = NULL; |
c817e763 | 999 | struct list_head *list; |
79dd0c69 | 1000 | |
7bb95296 RC |
1001 | if (!dmasound_init && !dmasound_exit) { |
1002 | dmasound_init = alsa_device_init; | |
1003 | dmasound_exit = alsa_device_exit; | |
1004 | } else { | |
1005 | printk(KERN_WARNING "saa7134 ALSA: can't load, DMA sound handler already assigned (probably to OSS)\n"); | |
1006 | return -EBUSY; | |
1007 | } | |
1008 | ||
afd1a0c9 | 1009 | printk(KERN_INFO "saa7134 ALSA driver for DMA sound loaded\n"); |
c817e763 RC |
1010 | |
1011 | list_for_each(list,&saa7134_devlist) { | |
4aabf633 RC |
1012 | dev = list_entry(list, struct saa7134_dev, devlist); |
1013 | if (dev->dmasound.priv_data == NULL) { | |
f5b974cb | 1014 | alsa_device_init(dev); |
4aabf633 RC |
1015 | } else { |
1016 | printk(KERN_ERR "saa7134 ALSA: DMA sound is being handled by OSS. ignoring %s\n",dev->name); | |
1017 | return -EBUSY; | |
1018 | } | |
c817e763 | 1019 | } |
79dd0c69 | 1020 | |
4aabf633 | 1021 | if (dev == NULL) |
79dd0c69 RC |
1022 | printk(KERN_INFO "saa7134 ALSA: no saa7134 cards found\n"); |
1023 | ||
1024 | return 0; | |
674434c6 | 1025 | |
79dd0c69 RC |
1026 | } |
1027 | ||
1028 | /* | |
1029 | * Module destructor | |
1030 | */ | |
1031 | ||
943a4902 | 1032 | static void saa7134_alsa_exit(void) |
5f7591c0 | 1033 | { |
4ac97914 | 1034 | int idx; |
b54134be | 1035 | |
79dd0c69 | 1036 | for (idx = 0; idx < SNDRV_CARDS; idx++) { |
4ac97914 | 1037 | snd_card_free(snd_saa7134_cards[idx]); |
bd15eba3 | 1038 | } |
b54134be | 1039 | |
7bb95296 RC |
1040 | dmasound_init = NULL; |
1041 | dmasound_exit = NULL; | |
79dd0c69 | 1042 | printk(KERN_INFO "saa7134 ALSA driver for DMA sound unloaded\n"); |
b54134be | 1043 | |
79dd0c69 | 1044 | return; |
5f7591c0 | 1045 | } |
79dd0c69 | 1046 | |
c7ac6b42 LT |
1047 | /* We initialize this late, to make sure the sound system is up and running */ |
1048 | late_initcall(saa7134_alsa_init); | |
79dd0c69 RC |
1049 | module_exit(saa7134_alsa_exit); |
1050 | MODULE_LICENSE("GPL"); | |
1051 | MODULE_AUTHOR("Ricardo Cerqueira"); | |
674434c6 MCC |
1052 | |
1053 | ||
1054 |