1 /*
2 ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
3 Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 #include <linux/delay.h>
21 #include <linux/init.h>
22 #include <linux/interrupt.h>
23 #include <linux/slab.h>
24 #include <linux/ioport.h>
25 #include <sound/core.h>
26 #include <sound/tlv.h>
27 #include <sound/ad1816a.h>
28
29 #include <asm/io.h>
30 #include <asm/dma.h>
31
snd_ad1816a_busy_wait(struct snd_ad1816a * chip)32 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip)
33 {
34 int timeout;
35
36 for (timeout = 1000; timeout-- > 0; udelay(10))
37 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY)
38 return 0;
39
40 snd_printk("chip busy.\n");
41 return -EBUSY;
42 }
43
snd_ad1816a_in(struct snd_ad1816a * chip,unsigned char reg)44 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg)
45 {
46 snd_ad1816a_busy_wait(chip);
47 return inb(AD1816A_REG(reg));
48 }
49
snd_ad1816a_out(struct snd_ad1816a * chip,unsigned char reg,unsigned char value)50 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg,
51 unsigned char value)
52 {
53 snd_ad1816a_busy_wait(chip);
54 outb(value, AD1816A_REG(reg));
55 }
56
snd_ad1816a_out_mask(struct snd_ad1816a * chip,unsigned char reg,unsigned char mask,unsigned char value)57 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg,
58 unsigned char mask, unsigned char value)
59 {
60 snd_ad1816a_out(chip, reg,
61 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask));
62 }
63
snd_ad1816a_read(struct snd_ad1816a * chip,unsigned char reg)64 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg)
65 {
66 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
67 return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) |
68 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8);
69 }
70
snd_ad1816a_write(struct snd_ad1816a * chip,unsigned char reg,unsigned short value)71 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg,
72 unsigned short value)
73 {
74 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
75 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff);
76 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff);
77 }
78
snd_ad1816a_write_mask(struct snd_ad1816a * chip,unsigned char reg,unsigned short mask,unsigned short value)79 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,
80 unsigned short mask, unsigned short value)
81 {
82 snd_ad1816a_write(chip, reg,
83 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));
84 }
85
86
snd_ad1816a_get_format(struct snd_ad1816a * chip,unsigned int format,int channels)87 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,
88 unsigned int format, int channels)
89 {
90 unsigned char retval = AD1816A_FMT_LINEAR_8;
91
92 switch (format) {
93 case SNDRV_PCM_FORMAT_MU_LAW:
94 retval = AD1816A_FMT_ULAW_8;
95 break;
96 case SNDRV_PCM_FORMAT_A_LAW:
97 retval = AD1816A_FMT_ALAW_8;
98 break;
99 case SNDRV_PCM_FORMAT_S16_LE:
100 retval = AD1816A_FMT_LINEAR_16_LIT;
101 break;
102 case SNDRV_PCM_FORMAT_S16_BE:
103 retval = AD1816A_FMT_LINEAR_16_BIG;
104 }
105 return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval;
106 }
107
snd_ad1816a_open(struct snd_ad1816a * chip,unsigned int mode)108 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode)
109 {
110 unsigned long flags;
111
112 spin_lock_irqsave(&chip->lock, flags);
113
114 if (chip->mode & mode) {
115 spin_unlock_irqrestore(&chip->lock, flags);
116 return -EAGAIN;
117 }
118
119 switch ((mode &= AD1816A_MODE_OPEN)) {
120 case AD1816A_MODE_PLAYBACK:
121 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
122 AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
123 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
124 AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff);
125 break;
126 case AD1816A_MODE_CAPTURE:
127 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
128 AD1816A_CAPTURE_IRQ_PENDING, 0x00);
129 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
130 AD1816A_CAPTURE_IRQ_ENABLE, 0xffff);
131 break;
132 case AD1816A_MODE_TIMER:
133 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
134 AD1816A_TIMER_IRQ_PENDING, 0x00);
135 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
136 AD1816A_TIMER_IRQ_ENABLE, 0xffff);
137 }
138 chip->mode |= mode;
139
140 spin_unlock_irqrestore(&chip->lock, flags);
141 return 0;
142 }
143
snd_ad1816a_close(struct snd_ad1816a * chip,unsigned int mode)144 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)
145 {
146 unsigned long flags;
147
148 spin_lock_irqsave(&chip->lock, flags);
149
150 switch ((mode &= AD1816A_MODE_OPEN)) {
151 case AD1816A_MODE_PLAYBACK:
152 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
153 AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
154 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
155 AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000);
156 break;
157 case AD1816A_MODE_CAPTURE:
158 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
159 AD1816A_CAPTURE_IRQ_PENDING, 0x00);
160 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
161 AD1816A_CAPTURE_IRQ_ENABLE, 0x0000);
162 break;
163 case AD1816A_MODE_TIMER:
164 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
165 AD1816A_TIMER_IRQ_PENDING, 0x00);
166 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
167 AD1816A_TIMER_IRQ_ENABLE, 0x0000);
168 }
169 if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN))
170 chip->mode = 0;
171
172 spin_unlock_irqrestore(&chip->lock, flags);
173 }
174
175
snd_ad1816a_trigger(struct snd_ad1816a * chip,unsigned char what,int channel,int cmd,int iscapture)176 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,
177 int channel, int cmd, int iscapture)
178 {
179 int error = 0;
180
181 switch (cmd) {
182 case SNDRV_PCM_TRIGGER_START:
183 case SNDRV_PCM_TRIGGER_STOP:
184 spin_lock(&chip->lock);
185 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
186 /* if (what & AD1816A_PLAYBACK_ENABLE) */
187 /* That is not valid, because playback and capture enable
188 * are the same bit pattern, just to different addresses
189 */
190 if (! iscapture)
191 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
192 AD1816A_PLAYBACK_ENABLE, cmd);
193 else
194 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
195 AD1816A_CAPTURE_ENABLE, cmd);
196 spin_unlock(&chip->lock);
197 break;
198 default:
199 snd_printk("invalid trigger mode 0x%x.\n", what);
200 error = -EINVAL;
201 }
202
203 return error;
204 }
205
snd_ad1816a_playback_trigger(struct snd_pcm_substream * substream,int cmd)206 static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd)
207 {
208 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
209 return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,
210 SNDRV_PCM_STREAM_PLAYBACK, cmd, 0);
211 }
212
snd_ad1816a_capture_trigger(struct snd_pcm_substream * substream,int cmd)213 static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd)
214 {
215 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
216 return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
217 SNDRV_PCM_STREAM_CAPTURE, cmd, 1);
218 }
219
snd_ad1816a_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)220 static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream,
221 struct snd_pcm_hw_params *hw_params)
222 {
223 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
224 }
225
snd_ad1816a_hw_free(struct snd_pcm_substream * substream)226 static int snd_ad1816a_hw_free(struct snd_pcm_substream *substream)
227 {
228 return snd_pcm_lib_free_pages(substream);
229 }
230
snd_ad1816a_playback_prepare(struct snd_pcm_substream * substream)231 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream)
232 {
233 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
234 unsigned long flags;
235 struct snd_pcm_runtime *runtime = substream->runtime;
236 unsigned int size, rate;
237
238 spin_lock_irqsave(&chip->lock, flags);
239
240 chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
241 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
242 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
243
244 snd_dma_program(chip->dma1, runtime->dma_addr, size,
245 DMA_MODE_WRITE | DMA_AUTOINIT);
246
247 rate = runtime->rate;
248 if (chip->clock_freq)
249 rate = (rate * 33000) / chip->clock_freq;
250 snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate);
251 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
252 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
253 snd_ad1816a_get_format(chip, runtime->format,
254 runtime->channels));
255
256 snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,
257 snd_pcm_lib_period_bytes(substream) / 4 - 1);
258
259 spin_unlock_irqrestore(&chip->lock, flags);
260 return 0;
261 }
262
snd_ad1816a_capture_prepare(struct snd_pcm_substream * substream)263 static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream)
264 {
265 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
266 unsigned long flags;
267 struct snd_pcm_runtime *runtime = substream->runtime;
268 unsigned int size, rate;
269
270 spin_lock_irqsave(&chip->lock, flags);
271
272 chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
273 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
274 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
275
276 snd_dma_program(chip->dma2, runtime->dma_addr, size,
277 DMA_MODE_READ | DMA_AUTOINIT);
278
279 rate = runtime->rate;
280 if (chip->clock_freq)
281 rate = (rate * 33000) / chip->clock_freq;
282 snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate);
283 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
284 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
285 snd_ad1816a_get_format(chip, runtime->format,
286 runtime->channels));
287
288 snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,
289 snd_pcm_lib_period_bytes(substream) / 4 - 1);
290
291 spin_unlock_irqrestore(&chip->lock, flags);
292 return 0;
293 }
294
295
snd_ad1816a_playback_pointer(struct snd_pcm_substream * substream)296 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream)
297 {
298 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
299 size_t ptr;
300 if (!(chip->mode & AD1816A_MODE_PLAYBACK))
301 return 0;
302 ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
303 return bytes_to_frames(substream->runtime, ptr);
304 }
305
snd_ad1816a_capture_pointer(struct snd_pcm_substream * substream)306 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream)
307 {
308 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
309 size_t ptr;
310 if (!(chip->mode & AD1816A_MODE_CAPTURE))
311 return 0;
312 ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
313 return bytes_to_frames(substream->runtime, ptr);
314 }
315
316
snd_ad1816a_interrupt(int irq,void * dev_id)317 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
318 {
319 struct snd_ad1816a *chip = dev_id;
320 unsigned char status;
321
322 spin_lock(&chip->lock);
323 status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);
324 spin_unlock(&chip->lock);
325
326 if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream)
327 snd_pcm_period_elapsed(chip->playback_substream);
328
329 if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream)
330 snd_pcm_period_elapsed(chip->capture_substream);
331
332 if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer)
333 snd_timer_interrupt(chip->timer, chip->timer->sticks);
334
335 spin_lock(&chip->lock);
336 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
337 spin_unlock(&chip->lock);
338 return IRQ_HANDLED;
339 }
340
341
342 static struct snd_pcm_hardware snd_ad1816a_playback = {
343 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
344 SNDRV_PCM_INFO_MMAP_VALID),
345 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
346 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
347 SNDRV_PCM_FMTBIT_S16_BE),
348 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
349 .rate_min = 4000,
350 .rate_max = 55200,
351 .channels_min = 1,
352 .channels_max = 2,
353 .buffer_bytes_max = (128*1024),
354 .period_bytes_min = 64,
355 .period_bytes_max = (128*1024),
356 .periods_min = 1,
357 .periods_max = 1024,
358 .fifo_size = 0,
359 };
360
361 static struct snd_pcm_hardware snd_ad1816a_capture = {
362 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
363 SNDRV_PCM_INFO_MMAP_VALID),
364 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
365 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
366 SNDRV_PCM_FMTBIT_S16_BE),
367 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
368 .rate_min = 4000,
369 .rate_max = 55200,
370 .channels_min = 1,
371 .channels_max = 2,
372 .buffer_bytes_max = (128*1024),
373 .period_bytes_min = 64,
374 .period_bytes_max = (128*1024),
375 .periods_min = 1,
376 .periods_max = 1024,
377 .fifo_size = 0,
378 };
379
380 #if 0 /* not used now */
381 static int snd_ad1816a_timer_close(struct snd_timer *timer)
382 {
383 struct snd_ad1816a *chip = snd_timer_chip(timer);
384 snd_ad1816a_close(chip, AD1816A_MODE_TIMER);
385 return 0;
386 }
387
388 static int snd_ad1816a_timer_open(struct snd_timer *timer)
389 {
390 struct snd_ad1816a *chip = snd_timer_chip(timer);
391 snd_ad1816a_open(chip, AD1816A_MODE_TIMER);
392 return 0;
393 }
394
395 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer)
396 {
397 if (snd_BUG_ON(!timer))
398 return 0;
399
400 return 10000;
401 }
402
403 static int snd_ad1816a_timer_start(struct snd_timer *timer)
404 {
405 unsigned short bits;
406 unsigned long flags;
407 struct snd_ad1816a *chip = snd_timer_chip(timer);
408 spin_lock_irqsave(&chip->lock, flags);
409 bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE);
410
411 if (!(bits & AD1816A_TIMER_ENABLE)) {
412 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT,
413 timer->sticks & 0xffff);
414
415 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
416 AD1816A_TIMER_ENABLE, 0xffff);
417 }
418 spin_unlock_irqrestore(&chip->lock, flags);
419 return 0;
420 }
421
422 static int snd_ad1816a_timer_stop(struct snd_timer *timer)
423 {
424 unsigned long flags;
425 struct snd_ad1816a *chip = snd_timer_chip(timer);
426 spin_lock_irqsave(&chip->lock, flags);
427
428 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
429 AD1816A_TIMER_ENABLE, 0x0000);
430
431 spin_unlock_irqrestore(&chip->lock, flags);
432 return 0;
433 }
434
435 static struct snd_timer_hardware snd_ad1816a_timer_table = {
436 .flags = SNDRV_TIMER_HW_AUTO,
437 .resolution = 10000,
438 .ticks = 65535,
439 .open = snd_ad1816a_timer_open,
440 .close = snd_ad1816a_timer_close,
441 .c_resolution = snd_ad1816a_timer_resolution,
442 .start = snd_ad1816a_timer_start,
443 .stop = snd_ad1816a_timer_stop,
444 };
445 #endif /* not used now */
446
447
snd_ad1816a_playback_open(struct snd_pcm_substream * substream)448 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream)
449 {
450 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
451 struct snd_pcm_runtime *runtime = substream->runtime;
452 int error;
453
454 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0)
455 return error;
456 runtime->hw = snd_ad1816a_playback;
457 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
458 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
459 chip->playback_substream = substream;
460 return 0;
461 }
462
snd_ad1816a_capture_open(struct snd_pcm_substream * substream)463 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream)
464 {
465 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
466 struct snd_pcm_runtime *runtime = substream->runtime;
467 int error;
468
469 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
470 return error;
471 runtime->hw = snd_ad1816a_capture;
472 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
473 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
474 chip->capture_substream = substream;
475 return 0;
476 }
477
snd_ad1816a_playback_close(struct snd_pcm_substream * substream)478 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream)
479 {
480 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
481
482 chip->playback_substream = NULL;
483 snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
484 return 0;
485 }
486
snd_ad1816a_capture_close(struct snd_pcm_substream * substream)487 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
488 {
489 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
490
491 chip->capture_substream = NULL;
492 snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
493 return 0;
494 }
495
496
snd_ad1816a_init(struct snd_ad1816a * chip)497 static void __devinit snd_ad1816a_init(struct snd_ad1816a *chip)
498 {
499 unsigned long flags;
500
501 spin_lock_irqsave(&chip->lock, flags);
502
503 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
504 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
505 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
506 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
507 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
508 snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
509 snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
510 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
511 snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
512 snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
513
514 spin_unlock_irqrestore(&chip->lock, flags);
515 }
516
snd_ad1816a_probe(struct snd_ad1816a * chip)517 static int __devinit snd_ad1816a_probe(struct snd_ad1816a *chip)
518 {
519 unsigned long flags;
520
521 spin_lock_irqsave(&chip->lock, flags);
522
523 switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
524 case 0:
525 chip->hardware = AD1816A_HW_AD1815;
526 break;
527 case 1:
528 chip->hardware = AD1816A_HW_AD18MAX10;
529 break;
530 case 3:
531 chip->hardware = AD1816A_HW_AD1816A;
532 break;
533 default:
534 chip->hardware = AD1816A_HW_AUTO;
535 }
536
537 spin_unlock_irqrestore(&chip->lock, flags);
538 return 0;
539 }
540
snd_ad1816a_free(struct snd_ad1816a * chip)541 static int snd_ad1816a_free(struct snd_ad1816a *chip)
542 {
543 release_and_free_resource(chip->res_port);
544 if (chip->irq >= 0)
545 free_irq(chip->irq, (void *) chip);
546 if (chip->dma1 >= 0) {
547 snd_dma_disable(chip->dma1);
548 free_dma(chip->dma1);
549 }
550 if (chip->dma2 >= 0) {
551 snd_dma_disable(chip->dma2);
552 free_dma(chip->dma2);
553 }
554 kfree(chip);
555 return 0;
556 }
557
snd_ad1816a_dev_free(struct snd_device * device)558 static int snd_ad1816a_dev_free(struct snd_device *device)
559 {
560 struct snd_ad1816a *chip = device->device_data;
561 return snd_ad1816a_free(chip);
562 }
563
snd_ad1816a_chip_id(struct snd_ad1816a * chip)564 static const char __devinit *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
565 {
566 switch (chip->hardware) {
567 case AD1816A_HW_AD1816A: return "AD1816A";
568 case AD1816A_HW_AD1815: return "AD1815";
569 case AD1816A_HW_AD18MAX10: return "AD18max10";
570 default:
571 snd_printk("Unknown chip version %d:%d.\n",
572 chip->version, chip->hardware);
573 return "AD1816A - unknown";
574 }
575 }
576
snd_ad1816a_create(struct snd_card * card,unsigned long port,int irq,int dma1,int dma2,struct snd_ad1816a ** rchip)577 int __devinit snd_ad1816a_create(struct snd_card *card,
578 unsigned long port, int irq, int dma1, int dma2,
579 struct snd_ad1816a **rchip)
580 {
581 static struct snd_device_ops ops = {
582 .dev_free = snd_ad1816a_dev_free,
583 };
584 int error;
585 struct snd_ad1816a *chip;
586
587 *rchip = NULL;
588
589 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
590 if (chip == NULL)
591 return -ENOMEM;
592 chip->irq = -1;
593 chip->dma1 = -1;
594 chip->dma2 = -1;
595
596 if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
597 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
598 snd_ad1816a_free(chip);
599 return -EBUSY;
600 }
601 if (request_irq(irq, snd_ad1816a_interrupt, IRQF_DISABLED, "AD1816A", (void *) chip)) {
602 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
603 snd_ad1816a_free(chip);
604 return -EBUSY;
605 }
606 chip->irq = irq;
607 if (request_dma(dma1, "AD1816A - 1")) {
608 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
609 snd_ad1816a_free(chip);
610 return -EBUSY;
611 }
612 chip->dma1 = dma1;
613 if (request_dma(dma2, "AD1816A - 2")) {
614 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
615 snd_ad1816a_free(chip);
616 return -EBUSY;
617 }
618 chip->dma2 = dma2;
619
620 chip->card = card;
621 chip->port = port;
622 spin_lock_init(&chip->lock);
623
624 if ((error = snd_ad1816a_probe(chip))) {
625 snd_ad1816a_free(chip);
626 return error;
627 }
628
629 snd_ad1816a_init(chip);
630
631 /* Register device */
632 if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
633 snd_ad1816a_free(chip);
634 return error;
635 }
636
637 *rchip = chip;
638 return 0;
639 }
640
641 static struct snd_pcm_ops snd_ad1816a_playback_ops = {
642 .open = snd_ad1816a_playback_open,
643 .close = snd_ad1816a_playback_close,
644 .ioctl = snd_pcm_lib_ioctl,
645 .hw_params = snd_ad1816a_hw_params,
646 .hw_free = snd_ad1816a_hw_free,
647 .prepare = snd_ad1816a_playback_prepare,
648 .trigger = snd_ad1816a_playback_trigger,
649 .pointer = snd_ad1816a_playback_pointer,
650 };
651
652 static struct snd_pcm_ops snd_ad1816a_capture_ops = {
653 .open = snd_ad1816a_capture_open,
654 .close = snd_ad1816a_capture_close,
655 .ioctl = snd_pcm_lib_ioctl,
656 .hw_params = snd_ad1816a_hw_params,
657 .hw_free = snd_ad1816a_hw_free,
658 .prepare = snd_ad1816a_capture_prepare,
659 .trigger = snd_ad1816a_capture_trigger,
660 .pointer = snd_ad1816a_capture_pointer,
661 };
662
snd_ad1816a_pcm(struct snd_ad1816a * chip,int device,struct snd_pcm ** rpcm)663 int __devinit snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm)
664 {
665 int error;
666 struct snd_pcm *pcm;
667
668 if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
669 return error;
670
671 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
672 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
673
674 pcm->private_data = chip;
675 pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
676
677 strcpy(pcm->name, snd_ad1816a_chip_id(chip));
678 snd_ad1816a_init(chip);
679
680 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
681 snd_dma_isa_data(),
682 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
683
684 chip->pcm = pcm;
685 if (rpcm)
686 *rpcm = pcm;
687 return 0;
688 }
689
690 #if 0 /* not used now */
691 int __devinit snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd_timer **rtimer)
692 {
693 struct snd_timer *timer;
694 struct snd_timer_id tid;
695 int error;
696
697 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
698 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
699 tid.card = chip->card->number;
700 tid.device = device;
701 tid.subdevice = 0;
702 if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
703 return error;
704 strcpy(timer->name, snd_ad1816a_chip_id(chip));
705 timer->private_data = chip;
706 chip->timer = timer;
707 timer->hw = snd_ad1816a_timer_table;
708 if (rtimer)
709 *rtimer = timer;
710 return 0;
711 }
712 #endif /* not used now */
713
714 /*
715 *
716 */
717
snd_ad1816a_info_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)718 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
719 {
720 static char *texts[8] = {
721 "Line", "Mix", "CD", "Synth", "Video",
722 "Mic", "Phone",
723 };
724
725 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
726 uinfo->count = 2;
727 uinfo->value.enumerated.items = 7;
728 if (uinfo->value.enumerated.item > 6)
729 uinfo->value.enumerated.item = 6;
730 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
731 return 0;
732 }
733
snd_ad1816a_get_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)734 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
735 {
736 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
737 unsigned long flags;
738 unsigned short val;
739
740 spin_lock_irqsave(&chip->lock, flags);
741 val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
742 spin_unlock_irqrestore(&chip->lock, flags);
743 ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
744 ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
745 return 0;
746 }
747
snd_ad1816a_put_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)748 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
749 {
750 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
751 unsigned long flags;
752 unsigned short val;
753 int change;
754
755 if (ucontrol->value.enumerated.item[0] > 6 ||
756 ucontrol->value.enumerated.item[1] > 6)
757 return -EINVAL;
758 val = (ucontrol->value.enumerated.item[0] << 12) |
759 (ucontrol->value.enumerated.item[1] << 4);
760 spin_lock_irqsave(&chip->lock, flags);
761 change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
762 snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
763 spin_unlock_irqrestore(&chip->lock, flags);
764 return change;
765 }
766
767 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv) \
768 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
769 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
770 .name = xname, .info = snd_ad1816a_info_single, \
771 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
772 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
773 .tlv = { .p = (xtlv) } }
774 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
775 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
776 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
777 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
778
snd_ad1816a_info_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)779 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
780 {
781 int mask = (kcontrol->private_value >> 16) & 0xff;
782
783 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
784 uinfo->count = 1;
785 uinfo->value.integer.min = 0;
786 uinfo->value.integer.max = mask;
787 return 0;
788 }
789
snd_ad1816a_get_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)790 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
791 {
792 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
793 unsigned long flags;
794 int reg = kcontrol->private_value & 0xff;
795 int shift = (kcontrol->private_value >> 8) & 0xff;
796 int mask = (kcontrol->private_value >> 16) & 0xff;
797 int invert = (kcontrol->private_value >> 24) & 0xff;
798
799 spin_lock_irqsave(&chip->lock, flags);
800 ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
801 spin_unlock_irqrestore(&chip->lock, flags);
802 if (invert)
803 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
804 return 0;
805 }
806
snd_ad1816a_put_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)807 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
808 {
809 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
810 unsigned long flags;
811 int reg = kcontrol->private_value & 0xff;
812 int shift = (kcontrol->private_value >> 8) & 0xff;
813 int mask = (kcontrol->private_value >> 16) & 0xff;
814 int invert = (kcontrol->private_value >> 24) & 0xff;
815 int change;
816 unsigned short old_val, val;
817
818 val = (ucontrol->value.integer.value[0] & mask);
819 if (invert)
820 val = mask - val;
821 val <<= shift;
822 spin_lock_irqsave(&chip->lock, flags);
823 old_val = snd_ad1816a_read(chip, reg);
824 val = (old_val & ~(mask << shift)) | val;
825 change = val != old_val;
826 snd_ad1816a_write(chip, reg, val);
827 spin_unlock_irqrestore(&chip->lock, flags);
828 return change;
829 }
830
831 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
832 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
833 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
834 .name = xname, .info = snd_ad1816a_info_double, \
835 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
836 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
837 .tlv = { .p = (xtlv) } }
838
839 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
840 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
841 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
842 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
843
snd_ad1816a_info_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)844 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
845 {
846 int mask = (kcontrol->private_value >> 16) & 0xff;
847
848 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
849 uinfo->count = 2;
850 uinfo->value.integer.min = 0;
851 uinfo->value.integer.max = mask;
852 return 0;
853 }
854
snd_ad1816a_get_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)855 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
856 {
857 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
858 unsigned long flags;
859 int reg = kcontrol->private_value & 0xff;
860 int shift_left = (kcontrol->private_value >> 8) & 0x0f;
861 int shift_right = (kcontrol->private_value >> 12) & 0x0f;
862 int mask = (kcontrol->private_value >> 16) & 0xff;
863 int invert = (kcontrol->private_value >> 24) & 0xff;
864 unsigned short val;
865
866 spin_lock_irqsave(&chip->lock, flags);
867 val = snd_ad1816a_read(chip, reg);
868 ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
869 ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
870 spin_unlock_irqrestore(&chip->lock, flags);
871 if (invert) {
872 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
873 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
874 }
875 return 0;
876 }
877
snd_ad1816a_put_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)878 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
879 {
880 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
881 unsigned long flags;
882 int reg = kcontrol->private_value & 0xff;
883 int shift_left = (kcontrol->private_value >> 8) & 0x0f;
884 int shift_right = (kcontrol->private_value >> 12) & 0x0f;
885 int mask = (kcontrol->private_value >> 16) & 0xff;
886 int invert = (kcontrol->private_value >> 24) & 0xff;
887 int change;
888 unsigned short old_val, val1, val2;
889
890 val1 = ucontrol->value.integer.value[0] & mask;
891 val2 = ucontrol->value.integer.value[1] & mask;
892 if (invert) {
893 val1 = mask - val1;
894 val2 = mask - val2;
895 }
896 val1 <<= shift_left;
897 val2 <<= shift_right;
898 spin_lock_irqsave(&chip->lock, flags);
899 old_val = snd_ad1816a_read(chip, reg);
900 val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
901 change = val1 != old_val;
902 snd_ad1816a_write(chip, reg, val1);
903 spin_unlock_irqrestore(&chip->lock, flags);
904 return change;
905 }
906
907 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
908 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
909 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
910 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
911 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
912
913 static struct snd_kcontrol_new snd_ad1816a_controls[] __devinitdata = {
914 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
915 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
916 db_scale_5bit),
917 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
918 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1,
919 db_scale_6bit),
920 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
921 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1,
922 db_scale_5bit_12db_max),
923 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
924 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1,
925 db_scale_5bit_12db_max),
926 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
927 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1,
928 db_scale_5bit_12db_max),
929 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
930 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1,
931 db_scale_6bit),
932 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
933 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1,
934 db_scale_5bit_12db_max),
935 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
936 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
937 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1,
938 db_scale_5bit_12db_max),
939 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
940 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1,
941 db_scale_4bit),
942 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
943 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1,
944 db_scale_5bit),
945 {
946 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
947 .name = "Capture Source",
948 .info = snd_ad1816a_info_mux,
949 .get = snd_ad1816a_get_mux,
950 .put = snd_ad1816a_put_mux,
951 },
952 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
953 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0,
954 db_scale_rec_gain),
955 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
956 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
957 };
958
snd_ad1816a_mixer(struct snd_ad1816a * chip)959 int __devinit snd_ad1816a_mixer(struct snd_ad1816a *chip)
960 {
961 struct snd_card *card;
962 unsigned int idx;
963 int err;
964
965 if (snd_BUG_ON(!chip || !chip->card))
966 return -EINVAL;
967
968 card = chip->card;
969
970 strcpy(card->mixername, snd_ad1816a_chip_id(chip));
971
972 for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
973 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
974 return err;
975 }
976 return 0;
977 }
978