[ALSA] Add even more 'const' to everything related to TLV
[linux-2.6.git] / sound / isa / ad1816a / ad1816a_lib.c
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 <sound/driver.h>
21 #include <linux/delay.h>
22 #include <linux/init.h>
23 #include <linux/interrupt.h>
24 #include <linux/slab.h>
25 #include <linux/ioport.h>
26 #include <sound/core.h>
27 #include <sound/tlv.h>
28 #include <sound/ad1816a.h>
29
30 #include <asm/io.h>
31 #include <asm/dma.h>
32
33 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip)
34 {
35         int timeout;
36
37         for (timeout = 1000; timeout-- > 0; udelay(10))
38                 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY)
39                         return 0;
40
41         snd_printk("chip busy.\n");
42         return -EBUSY;
43 }
44
45 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg)
46 {
47         snd_ad1816a_busy_wait(chip);
48         return inb(AD1816A_REG(reg));
49 }
50
51 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg,
52                             unsigned char value)
53 {
54         snd_ad1816a_busy_wait(chip);
55         outb(value, AD1816A_REG(reg));
56 }
57
58 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg,
59                                  unsigned char mask, unsigned char value)
60 {
61         snd_ad1816a_out(chip, reg,
62                 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask));
63 }
64
65 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg)
66 {
67         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
68         return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) |
69                 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8);
70 }
71
72 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg,
73                               unsigned short value)
74 {
75         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
76         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff);
77         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff);
78 }
79
80 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,
81                                    unsigned short mask, unsigned short value)
82 {
83         snd_ad1816a_write(chip, reg,
84                 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));
85 }
86
87
88 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,
89                                             unsigned int format, 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("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 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 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 #if 0 /* not used now */
382 static int snd_ad1816a_timer_close(struct snd_timer *timer)
383 {
384         struct snd_ad1816a *chip = snd_timer_chip(timer);
385         snd_ad1816a_close(chip, AD1816A_MODE_TIMER);
386         return 0;
387 }
388
389 static int snd_ad1816a_timer_open(struct snd_timer *timer)
390 {
391         struct snd_ad1816a *chip = snd_timer_chip(timer);
392         snd_ad1816a_open(chip, AD1816A_MODE_TIMER);
393         return 0;
394 }
395
396 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer)
397 {
398         snd_assert(timer != NULL, 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
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         snd_pcm_set_sync(substream);
457         runtime->hw = snd_ad1816a_playback;
458         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
459         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
460         chip->playback_substream = substream;
461         return 0;
462 }
463
464 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream)
465 {
466         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
467         struct snd_pcm_runtime *runtime = substream->runtime;
468         int error;
469
470         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
471                 return error;
472         snd_pcm_set_sync(substream);
473         runtime->hw = snd_ad1816a_capture;
474         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
475         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
476         chip->capture_substream = substream;
477         return 0;
478 }
479
480 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream)
481 {
482         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
483
484         chip->playback_substream = NULL;
485         snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
486         return 0;
487 }
488
489 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
490 {
491         struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
492
493         chip->capture_substream = NULL;
494         snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
495         return 0;
496 }
497
498
499 static void __devinit snd_ad1816a_init(struct snd_ad1816a *chip)
500 {
501         unsigned long flags;
502
503         spin_lock_irqsave(&chip->lock, flags);
504
505         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
506         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
507                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
508         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
509                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
510         snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
511         snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
512                 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
513         snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
514         snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
515
516         spin_unlock_irqrestore(&chip->lock, flags);
517 }
518
519 static int __devinit snd_ad1816a_probe(struct snd_ad1816a *chip)
520 {
521         unsigned long flags;
522
523         spin_lock_irqsave(&chip->lock, flags);
524
525         switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
526         case 0:
527                 chip->hardware = AD1816A_HW_AD1815;
528                 break;
529         case 1:
530                 chip->hardware = AD1816A_HW_AD18MAX10;
531                 break;
532         case 3:
533                 chip->hardware = AD1816A_HW_AD1816A;
534                 break;
535         default:
536                 chip->hardware = AD1816A_HW_AUTO;
537         }
538
539         spin_unlock_irqrestore(&chip->lock, flags);
540         return 0;
541 }
542
543 static int snd_ad1816a_free(struct snd_ad1816a *chip)
544 {
545         release_and_free_resource(chip->res_port);
546         if (chip->irq >= 0)
547                 free_irq(chip->irq, (void *) chip);
548         if (chip->dma1 >= 0) {
549                 snd_dma_disable(chip->dma1);
550                 free_dma(chip->dma1);
551         }
552         if (chip->dma2 >= 0) {
553                 snd_dma_disable(chip->dma2);
554                 free_dma(chip->dma2);
555         }
556         kfree(chip);
557         return 0;
558 }
559
560 static int snd_ad1816a_dev_free(struct snd_device *device)
561 {
562         struct snd_ad1816a *chip = device->device_data;
563         return snd_ad1816a_free(chip);
564 }
565
566 static const char __devinit *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
567 {
568         switch (chip->hardware) {
569         case AD1816A_HW_AD1816A: return "AD1816A";
570         case AD1816A_HW_AD1815: return "AD1815";
571         case AD1816A_HW_AD18MAX10: return "AD18max10";
572         default:
573                 snd_printk("Unknown chip version %d:%d.\n",
574                         chip->version, chip->hardware);
575                 return "AD1816A - unknown";
576         }
577 }
578
579 int __devinit snd_ad1816a_create(struct snd_card *card,
580                                  unsigned long port, int irq, int dma1, int dma2,
581                                  struct snd_ad1816a **rchip)
582 {
583         static struct snd_device_ops ops = {
584                 .dev_free =     snd_ad1816a_dev_free,
585         };
586         int error;
587         struct snd_ad1816a *chip;
588
589         *rchip = NULL;
590
591         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
592         if (chip == NULL)
593                 return -ENOMEM;
594         chip->irq = -1;
595         chip->dma1 = -1;
596         chip->dma2 = -1;
597
598         if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
599                 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
600                 snd_ad1816a_free(chip);
601                 return -EBUSY;
602         }
603         if (request_irq(irq, snd_ad1816a_interrupt, IRQF_DISABLED, "AD1816A", (void *) chip)) {
604                 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
605                 snd_ad1816a_free(chip);
606                 return -EBUSY;
607         }
608         chip->irq = irq;
609         if (request_dma(dma1, "AD1816A - 1")) {
610                 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
611                 snd_ad1816a_free(chip);
612                 return -EBUSY;
613         }
614         chip->dma1 = dma1;
615         if (request_dma(dma2, "AD1816A - 2")) {
616                 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
617                 snd_ad1816a_free(chip);
618                 return -EBUSY;
619         }
620         chip->dma2 = dma2;
621
622         chip->card = card;
623         chip->port = port;
624         spin_lock_init(&chip->lock);
625
626         if ((error = snd_ad1816a_probe(chip))) {
627                 snd_ad1816a_free(chip);
628                 return error;
629         }
630
631         snd_ad1816a_init(chip);
632
633         /* Register device */
634         if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
635                 snd_ad1816a_free(chip);
636                 return error;
637         }
638
639         *rchip = chip;
640         return 0;
641 }
642
643 static struct snd_pcm_ops snd_ad1816a_playback_ops = {
644         .open =         snd_ad1816a_playback_open,
645         .close =        snd_ad1816a_playback_close,
646         .ioctl =        snd_pcm_lib_ioctl,
647         .hw_params =    snd_ad1816a_hw_params,
648         .hw_free =      snd_ad1816a_hw_free,
649         .prepare =      snd_ad1816a_playback_prepare,
650         .trigger =      snd_ad1816a_playback_trigger,
651         .pointer =      snd_ad1816a_playback_pointer,
652 };
653
654 static struct snd_pcm_ops snd_ad1816a_capture_ops = {
655         .open =         snd_ad1816a_capture_open,
656         .close =        snd_ad1816a_capture_close,
657         .ioctl =        snd_pcm_lib_ioctl,
658         .hw_params =    snd_ad1816a_hw_params,
659         .hw_free =      snd_ad1816a_hw_free,
660         .prepare =      snd_ad1816a_capture_prepare,
661         .trigger =      snd_ad1816a_capture_trigger,
662         .pointer =      snd_ad1816a_capture_pointer,
663 };
664
665 int __devinit snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm)
666 {
667         int error;
668         struct snd_pcm *pcm;
669
670         if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
671                 return error;
672
673         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
674         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
675
676         pcm->private_data = chip;
677         pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
678
679         strcpy(pcm->name, snd_ad1816a_chip_id(chip));
680         snd_ad1816a_init(chip);
681
682         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
683                                               snd_dma_isa_data(),
684                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
685
686         chip->pcm = pcm;
687         if (rpcm)
688                 *rpcm = pcm;
689         return 0;
690 }
691
692 #if 0 /* not used now */
693 int __devinit snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd_timer **rtimer)
694 {
695         struct snd_timer *timer;
696         struct snd_timer_id tid;
697         int error;
698
699         tid.dev_class = SNDRV_TIMER_CLASS_CARD;
700         tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
701         tid.card = chip->card->number;
702         tid.device = device;
703         tid.subdevice = 0;
704         if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
705                 return error;
706         strcpy(timer->name, snd_ad1816a_chip_id(chip));
707         timer->private_data = chip;
708         chip->timer = timer;
709         timer->hw = snd_ad1816a_timer_table;
710         if (rtimer)
711                 *rtimer = timer;
712         return 0;
713 }
714 #endif /* not used now */
715
716 /*
717  *
718  */
719
720 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
721 {
722         static char *texts[8] = {
723                 "Line", "Mix", "CD", "Synth", "Video",
724                 "Mic", "Phone",
725         };
726
727         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
728         uinfo->count = 2;
729         uinfo->value.enumerated.items = 7;
730         if (uinfo->value.enumerated.item > 6)
731                 uinfo->value.enumerated.item = 6;
732         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
733         return 0;
734 }
735
736 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
737 {
738         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
739         unsigned long flags;
740         unsigned short val;
741         
742         spin_lock_irqsave(&chip->lock, flags);
743         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
744         spin_unlock_irqrestore(&chip->lock, flags);
745         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
746         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
747         return 0;
748 }
749
750 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
751 {
752         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
753         unsigned long flags;
754         unsigned short val;
755         int change;
756         
757         if (ucontrol->value.enumerated.item[0] > 6 ||
758             ucontrol->value.enumerated.item[1] > 6)
759                 return -EINVAL;
760         val = (ucontrol->value.enumerated.item[0] << 12) |
761               (ucontrol->value.enumerated.item[1] << 4);
762         spin_lock_irqsave(&chip->lock, flags);
763         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
764         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
765         spin_unlock_irqrestore(&chip->lock, flags);
766         return change;
767 }
768
769 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv)       \
770 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
771   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
772   .name = xname, .info = snd_ad1816a_info_single, \
773   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
774   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
775   .tlv = { .p = (xtlv) } }
776 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
777 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
778   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
779   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
780
781 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
782 {
783         int mask = (kcontrol->private_value >> 16) & 0xff;
784
785         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
786         uinfo->count = 1;
787         uinfo->value.integer.min = 0;
788         uinfo->value.integer.max = mask;
789         return 0;
790 }
791
792 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
793 {
794         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
795         unsigned long flags;
796         int reg = kcontrol->private_value & 0xff;
797         int shift = (kcontrol->private_value >> 8) & 0xff;
798         int mask = (kcontrol->private_value >> 16) & 0xff;
799         int invert = (kcontrol->private_value >> 24) & 0xff;
800         
801         spin_lock_irqsave(&chip->lock, flags);
802         ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
803         spin_unlock_irqrestore(&chip->lock, flags);
804         if (invert)
805                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
806         return 0;
807 }
808
809 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
810 {
811         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
812         unsigned long flags;
813         int reg = kcontrol->private_value & 0xff;
814         int shift = (kcontrol->private_value >> 8) & 0xff;
815         int mask = (kcontrol->private_value >> 16) & 0xff;
816         int invert = (kcontrol->private_value >> 24) & 0xff;
817         int change;
818         unsigned short old_val, val;
819         
820         val = (ucontrol->value.integer.value[0] & mask);
821         if (invert)
822                 val = mask - val;
823         val <<= shift;
824         spin_lock_irqsave(&chip->lock, flags);
825         old_val = snd_ad1816a_read(chip, reg);
826         val = (old_val & ~(mask << shift)) | val;
827         change = val != old_val;
828         snd_ad1816a_write(chip, reg, val);
829         spin_unlock_irqrestore(&chip->lock, flags);
830         return change;
831 }
832
833 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
834 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
835   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
836   .name = xname, .info = snd_ad1816a_info_double,               \
837   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
838   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
839   .tlv = { .p = (xtlv) } }
840
841 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
842 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
843   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
844   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
845
846 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
847 {
848         int mask = (kcontrol->private_value >> 16) & 0xff;
849
850         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
851         uinfo->count = 2;
852         uinfo->value.integer.min = 0;
853         uinfo->value.integer.max = mask;
854         return 0;
855 }
856
857 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
858 {
859         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
860         unsigned long flags;
861         int reg = kcontrol->private_value & 0xff;
862         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
863         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
864         int mask = (kcontrol->private_value >> 16) & 0xff;
865         int invert = (kcontrol->private_value >> 24) & 0xff;
866         unsigned short val;
867         
868         spin_lock_irqsave(&chip->lock, flags);
869         val = snd_ad1816a_read(chip, reg);
870         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
871         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
872         spin_unlock_irqrestore(&chip->lock, flags);
873         if (invert) {
874                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
875                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
876         }
877         return 0;
878 }
879
880 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
881 {
882         struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
883         unsigned long flags;
884         int reg = kcontrol->private_value & 0xff;
885         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
886         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
887         int mask = (kcontrol->private_value >> 16) & 0xff;
888         int invert = (kcontrol->private_value >> 24) & 0xff;
889         int change;
890         unsigned short old_val, val1, val2;
891         
892         val1 = ucontrol->value.integer.value[0] & mask;
893         val2 = ucontrol->value.integer.value[1] & mask;
894         if (invert) {
895                 val1 = mask - val1;
896                 val2 = mask - val2;
897         }
898         val1 <<= shift_left;
899         val2 <<= shift_right;
900         spin_lock_irqsave(&chip->lock, flags);
901         old_val = snd_ad1816a_read(chip, reg);
902         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
903         change = val1 != old_val;
904         snd_ad1816a_write(chip, reg, val1);
905         spin_unlock_irqrestore(&chip->lock, flags);
906         return change;
907 }
908
909 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
910 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
911 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
912 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
913 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
914
915 static struct snd_kcontrol_new snd_ad1816a_controls[] __devinitdata = {
916 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
917 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
918                    db_scale_5bit),
919 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
920 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1,
921                    db_scale_6bit),
922 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
923 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1,
924                    db_scale_5bit_12db_max),
925 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
926 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1,
927                    db_scale_5bit_12db_max),
928 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
929 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1,
930                    db_scale_5bit_12db_max),
931 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
932 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1,
933                    db_scale_6bit),
934 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
935 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1,
936                    db_scale_5bit_12db_max),
937 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
938 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
939 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1,
940                    db_scale_5bit_12db_max),
941 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
942 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1,
943                    db_scale_4bit),
944 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
945 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1,
946                    db_scale_5bit),
947 {
948         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
949         .name = "Capture Source",
950         .info = snd_ad1816a_info_mux,
951         .get = snd_ad1816a_get_mux,
952         .put = snd_ad1816a_put_mux,
953 },
954 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
955 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0,
956                    db_scale_rec_gain),
957 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
958 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
959 };
960                                         
961 int __devinit snd_ad1816a_mixer(struct snd_ad1816a *chip)
962 {
963         struct snd_card *card;
964         unsigned int idx;
965         int err;
966
967         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
968
969         card = chip->card;
970
971         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
972
973         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
974                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
975                         return err;
976         }
977         return 0;
978 }