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TOMOYO Linux Cross Reference
Linux/sound/isa/ad1816a/ad1816a_lib.c

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  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 <linux/io.h>
 26 #include <sound/core.h>
 27 #include <sound/tlv.h>
 28 #include <sound/ad1816a.h>
 29 
 30 #include <asm/dma.h>
 31 
 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(KERN_WARNING "chip busy.\n");
 41         return -EBUSY;
 42 }
 43 
 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 
 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 
 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 
 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 
 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 
 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 
 87 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,
 88                                             snd_pcm_format_t format,
 89                                             int channels)
 90 {
 91         unsigned char retval = AD1816A_FMT_LINEAR_8;
 92 
 93         switch (format) {
 94         case SNDRV_PCM_FORMAT_MU_LAW:
 95                 retval = AD1816A_FMT_ULAW_8;
 96                 break;
 97         case SNDRV_PCM_FORMAT_A_LAW:
 98                 retval = AD1816A_FMT_ALAW_8;
 99                 break;
100         case SNDRV_PCM_FORMAT_S16_LE:
101                 retval = AD1816A_FMT_LINEAR_16_LIT;
102                 break;
103         case SNDRV_PCM_FORMAT_S16_BE:
104                 retval = AD1816A_FMT_LINEAR_16_BIG;
105         }
106         return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval;
107 }
108 
109 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode)
110 {
111         unsigned long flags;
112 
113         spin_lock_irqsave(&chip->lock, flags);
114 
115         if (chip->mode & mode) {
116                 spin_unlock_irqrestore(&chip->lock, flags);
117                 return -EAGAIN;
118         }
119 
120         switch ((mode &= AD1816A_MODE_OPEN)) {
121         case AD1816A_MODE_PLAYBACK:
122                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
123                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
124                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
125                         AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff);
126                 break;
127         case AD1816A_MODE_CAPTURE:
128                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
129                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
130                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
131                         AD1816A_CAPTURE_IRQ_ENABLE, 0xffff);
132                 break;
133         case AD1816A_MODE_TIMER:
134                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
135                         AD1816A_TIMER_IRQ_PENDING, 0x00);
136                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
137                         AD1816A_TIMER_IRQ_ENABLE, 0xffff);
138         }
139         chip->mode |= mode;
140 
141         spin_unlock_irqrestore(&chip->lock, flags);
142         return 0;
143 }
144 
145 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)
146 {
147         unsigned long flags;
148 
149         spin_lock_irqsave(&chip->lock, flags);
150 
151         switch ((mode &= AD1816A_MODE_OPEN)) {
152         case AD1816A_MODE_PLAYBACK:
153                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
154                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
155                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
156                         AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000);
157                 break;
158         case AD1816A_MODE_CAPTURE:
159                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
160                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
161                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
162                         AD1816A_CAPTURE_IRQ_ENABLE, 0x0000);
163                 break;
164         case AD1816A_MODE_TIMER:
165                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
166                         AD1816A_TIMER_IRQ_PENDING, 0x00);
167                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
168                         AD1816A_TIMER_IRQ_ENABLE, 0x0000);
169         }
170         if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN))
171                 chip->mode = 0;
172 
173         spin_unlock_irqrestore(&chip->lock, flags);
174 }
175 
176 
177 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,
178                                int channel, int cmd, int iscapture)
179 {
180         int error = 0;
181 
182         switch (cmd) {
183         case SNDRV_PCM_TRIGGER_START:
184         case SNDRV_PCM_TRIGGER_STOP:
185                 spin_lock(&chip->lock);
186                 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
187                 /* if (what & AD1816A_PLAYBACK_ENABLE) */
188                 /* That is not valid, because playback and capture enable
189                  * are the same bit pattern, just to different addresses
190                  */
191                 if (! iscapture)
192                         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
193                                 AD1816A_PLAYBACK_ENABLE, cmd);
194                 else
195                         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
196                                 AD1816A_CAPTURE_ENABLE, cmd);
197                 spin_unlock(&chip->lock);
198                 break;
199         default:
200                 snd_printk(KERN_WARNING "invalid trigger mode 0x%x.\n", what);
201                 error = -EINVAL;
202         }
203 
204         return error;
205 }
206 
207 static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd)
208 {
209         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
210         return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,
211                                    SNDRV_PCM_STREAM_PLAYBACK, cmd, 0);
212 }
213 
214 static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd)
215 {
216         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
217         return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
218                                    SNDRV_PCM_STREAM_CAPTURE, cmd, 1);
219 }
220 
221 static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream,
222                                  struct snd_pcm_hw_params *hw_params)
223 {
224         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
225 }
226 
227 static int snd_ad1816a_hw_free(struct snd_pcm_substream *substream)
228 {
229         return snd_pcm_lib_free_pages(substream);
230 }
231 
232 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream)
233 {
234         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
235         unsigned long flags;
236         struct snd_pcm_runtime *runtime = substream->runtime;
237         unsigned int size, rate;
238 
239         spin_lock_irqsave(&chip->lock, flags);
240 
241         chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
242         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
243                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
244 
245         snd_dma_program(chip->dma1, runtime->dma_addr, size,
246                         DMA_MODE_WRITE | DMA_AUTOINIT);
247 
248         rate = runtime->rate;
249         if (chip->clock_freq)
250                 rate = (rate * 33000) / chip->clock_freq;
251         snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate);
252         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
253                 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
254                 snd_ad1816a_get_format(chip, runtime->format,
255                         runtime->channels));
256 
257         snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,
258                 snd_pcm_lib_period_bytes(substream) / 4 - 1);
259 
260         spin_unlock_irqrestore(&chip->lock, flags);
261         return 0;
262 }
263 
264 static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream)
265 {
266         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
267         unsigned long flags;
268         struct snd_pcm_runtime *runtime = substream->runtime;
269         unsigned int size, rate;
270 
271         spin_lock_irqsave(&chip->lock, flags);
272 
273         chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
274         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
275                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
276 
277         snd_dma_program(chip->dma2, runtime->dma_addr, size,
278                         DMA_MODE_READ | DMA_AUTOINIT);
279 
280         rate = runtime->rate;
281         if (chip->clock_freq)
282                 rate = (rate * 33000) / chip->clock_freq;
283         snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate);
284         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
285                 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
286                 snd_ad1816a_get_format(chip, runtime->format,
287                         runtime->channels));
288 
289         snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,
290                 snd_pcm_lib_period_bytes(substream) / 4 - 1);
291 
292         spin_unlock_irqrestore(&chip->lock, flags);
293         return 0;
294 }
295 
296 
297 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream)
298 {
299         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
300         size_t ptr;
301         if (!(chip->mode & AD1816A_MODE_PLAYBACK))
302                 return 0;
303         ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
304         return bytes_to_frames(substream->runtime, ptr);
305 }
306 
307 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream)
308 {
309         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
310         size_t ptr;
311         if (!(chip->mode & AD1816A_MODE_CAPTURE))
312                 return 0;
313         ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
314         return bytes_to_frames(substream->runtime, ptr);
315 }
316 
317 
318 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
319 {
320         struct snd_ad1816a *chip = dev_id;
321         unsigned char status;
322 
323         spin_lock(&chip->lock);
324         status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);
325         spin_unlock(&chip->lock);
326 
327         if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream)
328                 snd_pcm_period_elapsed(chip->playback_substream);
329 
330         if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream)
331                 snd_pcm_period_elapsed(chip->capture_substream);
332 
333         if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer)
334                 snd_timer_interrupt(chip->timer, chip->timer->sticks);
335 
336         spin_lock(&chip->lock);
337         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
338         spin_unlock(&chip->lock);
339         return IRQ_HANDLED;
340 }
341 
342 
343 static const struct snd_pcm_hardware snd_ad1816a_playback = {
344         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
345                                  SNDRV_PCM_INFO_MMAP_VALID),
346         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
347                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
348                                  SNDRV_PCM_FMTBIT_S16_BE),
349         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
350         .rate_min =             4000,
351         .rate_max =             55200,
352         .channels_min =         1,
353         .channels_max =         2,
354         .buffer_bytes_max =     (128*1024),
355         .period_bytes_min =     64,
356         .period_bytes_max =     (128*1024),
357         .periods_min =          1,
358         .periods_max =          1024,
359         .fifo_size =            0,
360 };
361 
362 static const struct snd_pcm_hardware snd_ad1816a_capture = {
363         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
364                                  SNDRV_PCM_INFO_MMAP_VALID),
365         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
366                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
367                                  SNDRV_PCM_FMTBIT_S16_BE),
368         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
369         .rate_min =             4000,
370         .rate_max =             55200,
371         .channels_min =         1,
372         .channels_max =         2,
373         .buffer_bytes_max =     (128*1024),
374         .period_bytes_min =     64,
375         .period_bytes_max =     (128*1024),
376         .periods_min =          1,
377         .periods_max =          1024,
378         .fifo_size =            0,
379 };
380 
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 
446 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream)
447 {
448         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
449         struct snd_pcm_runtime *runtime = substream->runtime;
450         int error;
451 
452         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0)
453                 return error;
454         runtime->hw = snd_ad1816a_playback;
455         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
456         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
457         chip->playback_substream = substream;
458         return 0;
459 }
460 
461 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream)
462 {
463         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
464         struct snd_pcm_runtime *runtime = substream->runtime;
465         int error;
466 
467         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
468                 return error;
469         runtime->hw = snd_ad1816a_capture;
470         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
471         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
472         chip->capture_substream = substream;
473         return 0;
474 }
475 
476 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream)
477 {
478         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
479 
480         chip->playback_substream = NULL;
481         snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
482         return 0;
483 }
484 
485 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
486 {
487         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
488 
489         chip->capture_substream = NULL;
490         snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
491         return 0;
492 }
493 
494 
495 static void snd_ad1816a_init(struct snd_ad1816a *chip)
496 {
497         unsigned long flags;
498 
499         spin_lock_irqsave(&chip->lock, flags);
500 
501         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
502         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
503                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
504         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
505                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
506         snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
507         snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
508                 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
509         snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
510         snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
511 
512         spin_unlock_irqrestore(&chip->lock, flags);
513 }
514 
515 #ifdef CONFIG_PM
516 void snd_ad1816a_suspend(struct snd_ad1816a *chip)
517 {
518         int reg;
519         unsigned long flags;
520 
521         snd_pcm_suspend_all(chip->pcm);
522         spin_lock_irqsave(&chip->lock, flags);
523         for (reg = 0; reg < 48; reg++)
524                 chip->image[reg] = snd_ad1816a_read(chip, reg);
525         spin_unlock_irqrestore(&chip->lock, flags);
526 }
527 
528 void snd_ad1816a_resume(struct snd_ad1816a *chip)
529 {
530         int reg;
531         unsigned long flags;
532 
533         snd_ad1816a_init(chip);
534         spin_lock_irqsave(&chip->lock, flags);
535         for (reg = 0; reg < 48; reg++)
536                 snd_ad1816a_write(chip, reg, chip->image[reg]);
537         spin_unlock_irqrestore(&chip->lock, flags);
538 }
539 #endif
540 
541 static int snd_ad1816a_probe(struct snd_ad1816a *chip)
542 {
543         unsigned long flags;
544 
545         spin_lock_irqsave(&chip->lock, flags);
546 
547         switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
548         case 0:
549                 chip->hardware = AD1816A_HW_AD1815;
550                 break;
551         case 1:
552                 chip->hardware = AD1816A_HW_AD18MAX10;
553                 break;
554         case 3:
555                 chip->hardware = AD1816A_HW_AD1816A;
556                 break;
557         default:
558                 chip->hardware = AD1816A_HW_AUTO;
559         }
560 
561         spin_unlock_irqrestore(&chip->lock, flags);
562         return 0;
563 }
564 
565 static int snd_ad1816a_free(struct snd_ad1816a *chip)
566 {
567         release_and_free_resource(chip->res_port);
568         if (chip->irq >= 0)
569                 free_irq(chip->irq, (void *) chip);
570         if (chip->dma1 >= 0) {
571                 snd_dma_disable(chip->dma1);
572                 free_dma(chip->dma1);
573         }
574         if (chip->dma2 >= 0) {
575                 snd_dma_disable(chip->dma2);
576                 free_dma(chip->dma2);
577         }
578         return 0;
579 }
580 
581 static int snd_ad1816a_dev_free(struct snd_device *device)
582 {
583         struct snd_ad1816a *chip = device->device_data;
584         return snd_ad1816a_free(chip);
585 }
586 
587 static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
588 {
589         switch (chip->hardware) {
590         case AD1816A_HW_AD1816A: return "AD1816A";
591         case AD1816A_HW_AD1815: return "AD1815";
592         case AD1816A_HW_AD18MAX10: return "AD18max10";
593         default:
594                 snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n",
595                         chip->version, chip->hardware);
596                 return "AD1816A - unknown";
597         }
598 }
599 
600 int snd_ad1816a_create(struct snd_card *card,
601                        unsigned long port, int irq, int dma1, int dma2,
602                        struct snd_ad1816a *chip)
603 {
604         static struct snd_device_ops ops = {
605                 .dev_free =     snd_ad1816a_dev_free,
606         };
607         int error;
608 
609         chip->irq = -1;
610         chip->dma1 = -1;
611         chip->dma2 = -1;
612 
613         if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
614                 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
615                 snd_ad1816a_free(chip);
616                 return -EBUSY;
617         }
618         if (request_irq(irq, snd_ad1816a_interrupt, 0, "AD1816A", (void *) chip)) {
619                 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
620                 snd_ad1816a_free(chip);
621                 return -EBUSY;
622         }
623         chip->irq = irq;
624         if (request_dma(dma1, "AD1816A - 1")) {
625                 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
626                 snd_ad1816a_free(chip);
627                 return -EBUSY;
628         }
629         chip->dma1 = dma1;
630         if (request_dma(dma2, "AD1816A - 2")) {
631                 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
632                 snd_ad1816a_free(chip);
633                 return -EBUSY;
634         }
635         chip->dma2 = dma2;
636 
637         chip->card = card;
638         chip->port = port;
639         spin_lock_init(&chip->lock);
640 
641         if ((error = snd_ad1816a_probe(chip))) {
642                 snd_ad1816a_free(chip);
643                 return error;
644         }
645 
646         snd_ad1816a_init(chip);
647 
648         /* Register device */
649         if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
650                 snd_ad1816a_free(chip);
651                 return error;
652         }
653 
654         return 0;
655 }
656 
657 static const struct snd_pcm_ops snd_ad1816a_playback_ops = {
658         .open =         snd_ad1816a_playback_open,
659         .close =        snd_ad1816a_playback_close,
660         .ioctl =        snd_pcm_lib_ioctl,
661         .hw_params =    snd_ad1816a_hw_params,
662         .hw_free =      snd_ad1816a_hw_free,
663         .prepare =      snd_ad1816a_playback_prepare,
664         .trigger =      snd_ad1816a_playback_trigger,
665         .pointer =      snd_ad1816a_playback_pointer,
666 };
667 
668 static const struct snd_pcm_ops snd_ad1816a_capture_ops = {
669         .open =         snd_ad1816a_capture_open,
670         .close =        snd_ad1816a_capture_close,
671         .ioctl =        snd_pcm_lib_ioctl,
672         .hw_params =    snd_ad1816a_hw_params,
673         .hw_free =      snd_ad1816a_hw_free,
674         .prepare =      snd_ad1816a_capture_prepare,
675         .trigger =      snd_ad1816a_capture_trigger,
676         .pointer =      snd_ad1816a_capture_pointer,
677 };
678 
679 int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device)
680 {
681         int error;
682         struct snd_pcm *pcm;
683 
684         if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
685                 return error;
686 
687         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
688         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
689 
690         pcm->private_data = chip;
691         pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
692 
693         strcpy(pcm->name, snd_ad1816a_chip_id(chip));
694         snd_ad1816a_init(chip);
695 
696         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
697                                               snd_dma_isa_data(),
698                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
699 
700         chip->pcm = pcm;
701         return 0;
702 }
703 
704 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device)
705 {
706         struct snd_timer *timer;
707         struct snd_timer_id tid;
708         int error;
709 
710         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
711         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
712         tid.card = chip->card->number;
713         tid.device = device;
714         tid.subdevice = 0;
715         if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
716                 return error;
717         strcpy(timer->name, snd_ad1816a_chip_id(chip));
718         timer->private_data = chip;
719         chip->timer = timer;
720         timer->hw = snd_ad1816a_timer_table;
721         return 0;
722 }
723 
724 /*
725  *
726  */
727 
728 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
729 {
730         static const char * const texts[8] = {
731                 "Line", "Mix", "CD", "Synth", "Video",
732                 "Mic", "Phone",
733         };
734 
735         return snd_ctl_enum_info(uinfo, 2, 7, texts);
736 }
737 
738 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
739 {
740         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
741         unsigned long flags;
742         unsigned short val;
743         
744         spin_lock_irqsave(&chip->lock, flags);
745         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
746         spin_unlock_irqrestore(&chip->lock, flags);
747         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
748         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
749         return 0;
750 }
751 
752 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
753 {
754         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
755         unsigned long flags;
756         unsigned short val;
757         int change;
758         
759         if (ucontrol->value.enumerated.item[0] > 6 ||
760             ucontrol->value.enumerated.item[1] > 6)
761                 return -EINVAL;
762         val = (ucontrol->value.enumerated.item[0] << 12) |
763               (ucontrol->value.enumerated.item[1] << 4);
764         spin_lock_irqsave(&chip->lock, flags);
765         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
766         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
767         spin_unlock_irqrestore(&chip->lock, flags);
768         return change;
769 }
770 
771 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv)       \
772 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
773   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
774   .name = xname, .info = snd_ad1816a_info_single, \
775   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
776   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
777   .tlv = { .p = (xtlv) } }
778 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
779 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
780   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
781   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
782 
783 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
784 {
785         int mask = (kcontrol->private_value >> 16) & 0xff;
786 
787         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
788         uinfo->count = 1;
789         uinfo->value.integer.min = 0;
790         uinfo->value.integer.max = mask;
791         return 0;
792 }
793 
794 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
795 {
796         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
797         unsigned long flags;
798         int reg = kcontrol->private_value & 0xff;
799         int shift = (kcontrol->private_value >> 8) & 0xff;
800         int mask = (kcontrol->private_value >> 16) & 0xff;
801         int invert = (kcontrol->private_value >> 24) & 0xff;
802         
803         spin_lock_irqsave(&chip->lock, flags);
804         ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
805         spin_unlock_irqrestore(&chip->lock, flags);
806         if (invert)
807                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
808         return 0;
809 }
810 
811 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
812 {
813         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
814         unsigned long flags;
815         int reg = kcontrol->private_value & 0xff;
816         int shift = (kcontrol->private_value >> 8) & 0xff;
817         int mask = (kcontrol->private_value >> 16) & 0xff;
818         int invert = (kcontrol->private_value >> 24) & 0xff;
819         int change;
820         unsigned short old_val, val;
821         
822         val = (ucontrol->value.integer.value[0] & mask);
823         if (invert)
824                 val = mask - val;
825         val <<= shift;
826         spin_lock_irqsave(&chip->lock, flags);
827         old_val = snd_ad1816a_read(chip, reg);
828         val = (old_val & ~(mask << shift)) | val;
829         change = val != old_val;
830         snd_ad1816a_write(chip, reg, val);
831         spin_unlock_irqrestore(&chip->lock, flags);
832         return change;
833 }
834 
835 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
836 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
837   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
838   .name = xname, .info = snd_ad1816a_info_double,               \
839   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
840   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
841   .tlv = { .p = (xtlv) } }
842 
843 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
844 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
845   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
846   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
847 
848 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
849 {
850         int mask = (kcontrol->private_value >> 16) & 0xff;
851 
852         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
853         uinfo->count = 2;
854         uinfo->value.integer.min = 0;
855         uinfo->value.integer.max = mask;
856         return 0;
857 }
858 
859 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
860 {
861         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
862         unsigned long flags;
863         int reg = kcontrol->private_value & 0xff;
864         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
865         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
866         int mask = (kcontrol->private_value >> 16) & 0xff;
867         int invert = (kcontrol->private_value >> 24) & 0xff;
868         unsigned short val;
869         
870         spin_lock_irqsave(&chip->lock, flags);
871         val = snd_ad1816a_read(chip, reg);
872         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
873         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
874         spin_unlock_irqrestore(&chip->lock, flags);
875         if (invert) {
876                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
877                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
878         }
879         return 0;
880 }
881 
882 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
883 {
884         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
885         unsigned long flags;
886         int reg = kcontrol->private_value & 0xff;
887         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
888         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
889         int mask = (kcontrol->private_value >> 16) & 0xff;
890         int invert = (kcontrol->private_value >> 24) & 0xff;
891         int change;
892         unsigned short old_val, val1, val2;
893         
894         val1 = ucontrol->value.integer.value[0] & mask;
895         val2 = ucontrol->value.integer.value[1] & mask;
896         if (invert) {
897                 val1 = mask - val1;
898                 val2 = mask - val2;
899         }
900         val1 <<= shift_left;
901         val2 <<= shift_right;
902         spin_lock_irqsave(&chip->lock, flags);
903         old_val = snd_ad1816a_read(chip, reg);
904         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
905         change = val1 != old_val;
906         snd_ad1816a_write(chip, reg, val1);
907         spin_unlock_irqrestore(&chip->lock, flags);
908         return change;
909 }
910 
911 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
912 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
913 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
914 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
915 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
916 
917 static struct snd_kcontrol_new snd_ad1816a_controls[] = {
918 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
919 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
920                    db_scale_5bit),
921 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
922 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1,
923                    db_scale_6bit),
924 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
925 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1,
926                    db_scale_5bit_12db_max),
927 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
928 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1,
929                    db_scale_5bit_12db_max),
930 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
931 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1,
932                    db_scale_5bit_12db_max),
933 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
934 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1,
935                    db_scale_6bit),
936 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
937 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1,
938                    db_scale_5bit_12db_max),
939 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
940 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
941 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1,
942                    db_scale_5bit_12db_max),
943 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
944 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1,
945                    db_scale_4bit),
946 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
947 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1,
948                    db_scale_5bit),
949 {
950         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
951         .name = "Capture Source",
952         .info = snd_ad1816a_info_mux,
953         .get = snd_ad1816a_get_mux,
954         .put = snd_ad1816a_put_mux,
955 },
956 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
957 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0,
958                    db_scale_rec_gain),
959 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
960 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
961 };
962                                         
963 int snd_ad1816a_mixer(struct snd_ad1816a *chip)
964 {
965         struct snd_card *card;
966         unsigned int idx;
967         int err;
968 
969         if (snd_BUG_ON(!chip || !chip->card))
970                 return -EINVAL;
971 
972         card = chip->card;
973 
974         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
975 
976         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
977                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
978                         return err;
979         }
980         return 0;
981 }
982 

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