Linux-2.6.12-rc2
[linux-2.6.git] / sound / isa / ad1816a / ad1816a_lib.c
1
2 /*
3     ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
4     Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
5
6     This program is free software; you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by
8     the Free Software Foundation; either version 2 of the License, or
9     (at your option) any later version.
10
11     This program is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14     GNU General Public License for more details.
15
16     You should have received a copy of the GNU General Public License
17     along with this program; if not, write to the Free Software
18     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19 */
20
21 #include <sound/driver.h>
22 #include <linux/delay.h>
23 #include <linux/init.h>
24 #include <linux/interrupt.h>
25 #include <linux/slab.h>
26 #include <linux/ioport.h>
27 #include <sound/core.h>
28 #include <sound/ad1816a.h>
29
30 #include <asm/io.h>
31 #include <asm/dma.h>
32
33 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
34 MODULE_DESCRIPTION("lowlevel code for Analog Devices AD1816A chip");
35 MODULE_LICENSE("GPL");
36
37 static inline int snd_ad1816a_busy_wait(ad1816a_t *chip)
38 {
39         int timeout;
40
41         for (timeout = 1000; timeout-- > 0; udelay(10))
42                 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY)
43                         return 0;
44
45         snd_printk("chip busy.\n");
46         return -EBUSY;
47 }
48
49 static inline unsigned char snd_ad1816a_in(ad1816a_t *chip, unsigned char reg)
50 {
51         snd_ad1816a_busy_wait(chip);
52         return inb(AD1816A_REG(reg));
53 }
54
55 static inline void snd_ad1816a_out(ad1816a_t *chip, unsigned char reg,
56                             unsigned char value)
57 {
58         snd_ad1816a_busy_wait(chip);
59         outb(value, AD1816A_REG(reg));
60 }
61
62 static inline void snd_ad1816a_out_mask(ad1816a_t *chip, unsigned char reg,
63                                  unsigned char mask, unsigned char value)
64 {
65         snd_ad1816a_out(chip, reg,
66                 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask));
67 }
68
69 static unsigned short snd_ad1816a_read(ad1816a_t *chip, unsigned char reg)
70 {
71         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
72         return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) |
73                 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8);
74 }
75
76 static void snd_ad1816a_write(ad1816a_t *chip, unsigned char reg,
77                               unsigned short value)
78 {
79         snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
80         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff);
81         snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff);
82 }
83
84 static void snd_ad1816a_write_mask(ad1816a_t *chip, unsigned char reg,
85                                    unsigned short mask, unsigned short value)
86 {
87         snd_ad1816a_write(chip, reg,
88                 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));
89 }
90
91
92 static unsigned char snd_ad1816a_get_format(ad1816a_t *chip,
93                                             unsigned int format, int channels)
94 {
95         unsigned char retval = AD1816A_FMT_LINEAR_8;
96
97         switch (format) {
98         case SNDRV_PCM_FORMAT_MU_LAW:
99                 retval = AD1816A_FMT_ULAW_8;
100                 break;
101         case SNDRV_PCM_FORMAT_A_LAW:
102                 retval = AD1816A_FMT_ALAW_8;
103                 break;
104         case SNDRV_PCM_FORMAT_S16_LE:
105                 retval = AD1816A_FMT_LINEAR_16_LIT;
106                 break;
107         case SNDRV_PCM_FORMAT_S16_BE:
108                 retval = AD1816A_FMT_LINEAR_16_BIG;
109         }
110         return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval;
111 }
112
113 static int snd_ad1816a_open(ad1816a_t *chip, unsigned int mode)
114 {
115         unsigned long flags;
116
117         spin_lock_irqsave(&chip->lock, flags);
118
119         if (chip->mode & mode) {
120                 spin_unlock_irqrestore(&chip->lock, flags);
121                 return -EAGAIN;
122         }
123
124         switch ((mode &= AD1816A_MODE_OPEN)) {
125         case AD1816A_MODE_PLAYBACK:
126                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
127                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
128                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
129                         AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff);
130                 break;
131         case AD1816A_MODE_CAPTURE:
132                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
133                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
134                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
135                         AD1816A_CAPTURE_IRQ_ENABLE, 0xffff);
136                 break;
137         case AD1816A_MODE_TIMER:
138                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
139                         AD1816A_TIMER_IRQ_PENDING, 0x00);
140                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
141                         AD1816A_TIMER_IRQ_ENABLE, 0xffff);
142         }
143         chip->mode |= mode;
144
145         spin_unlock_irqrestore(&chip->lock, flags);
146         return 0;
147 }
148
149 static void snd_ad1816a_close(ad1816a_t *chip, unsigned int mode)
150 {
151         unsigned long flags;
152
153         spin_lock_irqsave(&chip->lock, flags);
154
155         switch ((mode &= AD1816A_MODE_OPEN)) {
156         case AD1816A_MODE_PLAYBACK:
157                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
158                         AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
159                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
160                         AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000);
161                 break;
162         case AD1816A_MODE_CAPTURE:
163                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
164                         AD1816A_CAPTURE_IRQ_PENDING, 0x00);
165                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
166                         AD1816A_CAPTURE_IRQ_ENABLE, 0x0000);
167                 break;
168         case AD1816A_MODE_TIMER:
169                 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
170                         AD1816A_TIMER_IRQ_PENDING, 0x00);
171                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
172                         AD1816A_TIMER_IRQ_ENABLE, 0x0000);
173         }
174         if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN))
175                 chip->mode = 0;
176
177         spin_unlock_irqrestore(&chip->lock, flags);
178 }
179
180
181 static int snd_ad1816a_trigger(ad1816a_t *chip, unsigned char what,
182                                int channel, int cmd)
183 {
184         int error = 0;
185
186         switch (cmd) {
187         case SNDRV_PCM_TRIGGER_START:
188         case SNDRV_PCM_TRIGGER_STOP:
189                 spin_lock(&chip->lock);
190                 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
191                 if (what & AD1816A_PLAYBACK_ENABLE)
192                         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
193                                 AD1816A_PLAYBACK_ENABLE, cmd);
194                 if (what & AD1816A_CAPTURE_ENABLE)
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(snd_pcm_substream_t *substream, int cmd)
208 {
209         ad1816a_t *chip = snd_pcm_substream_chip(substream);
210         return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,
211                 SNDRV_PCM_STREAM_PLAYBACK, cmd);
212 }
213
214 static int snd_ad1816a_capture_trigger(snd_pcm_substream_t *substream, int cmd)
215 {
216         ad1816a_t *chip = snd_pcm_substream_chip(substream);
217         return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
218                 SNDRV_PCM_STREAM_CAPTURE, cmd);
219 }
220
221 static int snd_ad1816a_hw_params(snd_pcm_substream_t * substream,
222                                  snd_pcm_hw_params_t * 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(snd_pcm_substream_t * substream)
228 {
229         return snd_pcm_lib_free_pages(substream);
230 }
231
232 static int snd_ad1816a_playback_prepare(snd_pcm_substream_t *substream)
233 {
234         ad1816a_t *chip = snd_pcm_substream_chip(substream);
235         unsigned long flags;
236         snd_pcm_runtime_t *runtime = substream->runtime;
237         unsigned int size;
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         snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, runtime->rate);
249         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
250                 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
251                 snd_ad1816a_get_format(chip, runtime->format,
252                         runtime->channels));
253
254         snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,
255                 snd_pcm_lib_period_bytes(substream) / 4 - 1);
256
257         spin_unlock_irqrestore(&chip->lock, flags);
258         return 0;
259 }
260
261 static int snd_ad1816a_capture_prepare(snd_pcm_substream_t *substream)
262 {
263         ad1816a_t *chip = snd_pcm_substream_chip(substream);
264         unsigned long flags;
265         snd_pcm_runtime_t *runtime = substream->runtime;
266         unsigned int size;
267
268         spin_lock_irqsave(&chip->lock, flags);
269
270         chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
271         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
272                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
273
274         snd_dma_program(chip->dma2, runtime->dma_addr, size,
275                         DMA_MODE_READ | DMA_AUTOINIT);
276
277         snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, runtime->rate);
278         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
279                 AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
280                 snd_ad1816a_get_format(chip, runtime->format,
281                         runtime->channels));
282
283         snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,
284                 snd_pcm_lib_period_bytes(substream) / 4 - 1);
285
286         spin_unlock_irqrestore(&chip->lock, flags);
287         return 0;
288 }
289
290
291 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(snd_pcm_substream_t *substream)
292 {
293         ad1816a_t *chip = snd_pcm_substream_chip(substream);
294         size_t ptr;
295         if (!(chip->mode & AD1816A_MODE_PLAYBACK))
296                 return 0;
297         ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
298         return bytes_to_frames(substream->runtime, ptr);
299 }
300
301 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(snd_pcm_substream_t *substream)
302 {
303         ad1816a_t *chip = snd_pcm_substream_chip(substream);
304         size_t ptr;
305         if (!(chip->mode & AD1816A_MODE_CAPTURE))
306                 return 0;
307         ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
308         return bytes_to_frames(substream->runtime, ptr);
309 }
310
311
312 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id, struct pt_regs *regs)
313 {
314         ad1816a_t *chip = dev_id;
315         unsigned char status;
316
317         spin_lock(&chip->lock);
318         status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);
319         spin_unlock(&chip->lock);
320
321         if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream)
322                 snd_pcm_period_elapsed(chip->playback_substream);
323
324         if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream)
325                 snd_pcm_period_elapsed(chip->capture_substream);
326
327         if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer)
328                 snd_timer_interrupt(chip->timer, chip->timer->sticks);
329
330         spin_lock(&chip->lock);
331         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
332         spin_unlock(&chip->lock);
333         return IRQ_HANDLED;
334 }
335
336
337 static snd_pcm_hardware_t snd_ad1816a_playback = {
338         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
339                                  SNDRV_PCM_INFO_MMAP_VALID),
340         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
341                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
342                                  SNDRV_PCM_FMTBIT_S16_BE),
343         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
344         .rate_min =             4000,
345         .rate_max =             55200,
346         .channels_min =         1,
347         .channels_max =         2,
348         .buffer_bytes_max =     (128*1024),
349         .period_bytes_min =     64,
350         .period_bytes_max =     (128*1024),
351         .periods_min =          1,
352         .periods_max =          1024,
353         .fifo_size =            0,
354 };
355
356 static snd_pcm_hardware_t snd_ad1816a_capture = {
357         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
358                                  SNDRV_PCM_INFO_MMAP_VALID),
359         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
360                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
361                                  SNDRV_PCM_FMTBIT_S16_BE),
362         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
363         .rate_min =             4000,
364         .rate_max =             55200,
365         .channels_min =         1,
366         .channels_max =         2,
367         .buffer_bytes_max =     (128*1024),
368         .period_bytes_min =     64,
369         .period_bytes_max =     (128*1024),
370         .periods_min =          1,
371         .periods_max =          1024,
372         .fifo_size =            0,
373 };
374
375 #if 0 /* not used now */
376 static int snd_ad1816a_timer_close(snd_timer_t *timer)
377 {
378         ad1816a_t *chip = snd_timer_chip(timer);
379         snd_ad1816a_close(chip, AD1816A_MODE_TIMER);
380         return 0;
381 }
382
383 static int snd_ad1816a_timer_open(snd_timer_t *timer)
384 {
385         ad1816a_t *chip = snd_timer_chip(timer);
386         snd_ad1816a_open(chip, AD1816A_MODE_TIMER);
387         return 0;
388 }
389
390 static unsigned long snd_ad1816a_timer_resolution(snd_timer_t *timer)
391 {
392         snd_assert(timer != NULL, return 0);
393
394         return 10000;
395 }
396
397 static int snd_ad1816a_timer_start(snd_timer_t *timer)
398 {
399         unsigned short bits;
400         unsigned long flags;
401         ad1816a_t *chip = snd_timer_chip(timer);
402         spin_lock_irqsave(&chip->lock, flags);
403         bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE);
404
405         if (!(bits & AD1816A_TIMER_ENABLE)) {
406                 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT,
407                         timer->sticks & 0xffff);
408
409                 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
410                         AD1816A_TIMER_ENABLE, 0xffff);
411         }
412         spin_unlock_irqrestore(&chip->lock, flags);
413         return 0;
414 }
415
416 static int snd_ad1816a_timer_stop(snd_timer_t *timer)
417 {
418         unsigned long flags;
419         ad1816a_t *chip = snd_timer_chip(timer);
420         spin_lock_irqsave(&chip->lock, flags);
421
422         snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
423                 AD1816A_TIMER_ENABLE, 0x0000);
424
425         spin_unlock_irqrestore(&chip->lock, flags);
426         return 0;
427 }
428
429 static struct _snd_timer_hardware snd_ad1816a_timer_table = {
430         .flags =        SNDRV_TIMER_HW_AUTO,
431         .resolution =   10000,
432         .ticks =        65535,
433         .open =         snd_ad1816a_timer_open,
434         .close =        snd_ad1816a_timer_close,
435         .c_resolution = snd_ad1816a_timer_resolution,
436         .start =        snd_ad1816a_timer_start,
437         .stop =         snd_ad1816a_timer_stop,
438 };
439 #endif /* not used now */
440
441
442 static int snd_ad1816a_playback_open(snd_pcm_substream_t *substream)
443 {
444         ad1816a_t *chip = snd_pcm_substream_chip(substream);
445         snd_pcm_runtime_t *runtime = substream->runtime;
446         int error;
447
448         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0)
449                 return error;
450         snd_pcm_set_sync(substream);
451         runtime->hw = snd_ad1816a_playback;
452         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
453         snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
454         chip->playback_substream = substream;
455         return 0;
456 }
457
458 static int snd_ad1816a_capture_open(snd_pcm_substream_t *substream)
459 {
460         ad1816a_t *chip = snd_pcm_substream_chip(substream);
461         snd_pcm_runtime_t *runtime = substream->runtime;
462         int error;
463
464         if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
465                 return error;
466         snd_pcm_set_sync(substream);
467         runtime->hw = snd_ad1816a_capture;
468         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
469         snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
470         chip->capture_substream = substream;
471         return 0;
472 }
473
474 static int snd_ad1816a_playback_close(snd_pcm_substream_t *substream)
475 {
476         ad1816a_t *chip = snd_pcm_substream_chip(substream);
477
478         chip->playback_substream = NULL;
479         snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
480         return 0;
481 }
482
483 static int snd_ad1816a_capture_close(snd_pcm_substream_t *substream)
484 {
485         ad1816a_t *chip = snd_pcm_substream_chip(substream);
486
487         chip->capture_substream = NULL;
488         snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
489         return 0;
490 }
491
492
493 static void snd_ad1816a_init(ad1816a_t *chip)
494 {
495         unsigned long flags;
496
497         spin_lock_irqsave(&chip->lock, flags);
498
499         snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
500         snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
501                 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
502         snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
503                 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
504         snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
505         snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
506                 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
507         snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
508         snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
509
510         spin_unlock_irqrestore(&chip->lock, flags);
511 }
512
513 static int snd_ad1816a_probe(ad1816a_t *chip)
514 {
515         unsigned long flags;
516
517         spin_lock_irqsave(&chip->lock, flags);
518
519         switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
520         case 0:
521                 chip->hardware = AD1816A_HW_AD1815;
522                 break;
523         case 1:
524                 chip->hardware = AD1816A_HW_AD18MAX10;
525                 break;
526         case 3:
527                 chip->hardware = AD1816A_HW_AD1816A;
528                 break;
529         default:
530                 chip->hardware = AD1816A_HW_AUTO;
531         }
532
533         spin_unlock_irqrestore(&chip->lock, flags);
534         return 0;
535 }
536
537 static int snd_ad1816a_free(ad1816a_t *chip)
538 {
539         if (chip->res_port) {
540                 release_resource(chip->res_port);
541                 kfree_nocheck(chip->res_port);
542         }
543         if (chip->irq >= 0)
544                 free_irq(chip->irq, (void *) chip);
545         if (chip->dma1 >= 0) {
546                 snd_dma_disable(chip->dma1);
547                 free_dma(chip->dma1);
548         }
549         if (chip->dma2 >= 0) {
550                 snd_dma_disable(chip->dma2);
551                 free_dma(chip->dma2);
552         }
553         kfree(chip);
554         return 0;
555 }
556
557 static int snd_ad1816a_dev_free(snd_device_t *device)
558 {
559         ad1816a_t *chip = device->device_data;
560         return snd_ad1816a_free(chip);
561 }
562
563 static const char *snd_ad1816a_chip_id(ad1816a_t *chip)
564 {
565         switch (chip->hardware) {
566         case AD1816A_HW_AD1816A: return "AD1816A";
567         case AD1816A_HW_AD1815: return "AD1815";
568         case AD1816A_HW_AD18MAX10: return "AD18max10";
569         default:
570                 snd_printk("Unknown chip version %d:%d.\n",
571                         chip->version, chip->hardware);
572                 return "AD1816A - unknown";
573         }
574 }
575
576 int snd_ad1816a_create(snd_card_t *card,
577                        unsigned long port, int irq, int dma1, int dma2,
578                        ad1816a_t **rchip)
579 {
580         static snd_device_ops_t ops = {
581                 .dev_free =     snd_ad1816a_dev_free,
582         };
583         int error;
584         ad1816a_t *chip;
585
586         *rchip = NULL;
587
588         chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
589         if (chip == NULL)
590                 return -ENOMEM;
591         chip->irq = -1;
592         chip->dma1 = -1;
593         chip->dma2 = -1;
594
595         if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
596                 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
597                 snd_ad1816a_free(chip);
598                 return -EBUSY;
599         }
600         if (request_irq(irq, snd_ad1816a_interrupt, SA_INTERRUPT, "AD1816A", (void *) chip)) {
601                 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
602                 snd_ad1816a_free(chip);
603                 return -EBUSY;
604         }
605         chip->irq = irq;
606         if (request_dma(dma1, "AD1816A - 1")) {
607                 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
608                 snd_ad1816a_free(chip);
609                 return -EBUSY;
610         }
611         chip->dma1 = dma1;
612         if (request_dma(dma2, "AD1816A - 2")) {
613                 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
614                 snd_ad1816a_free(chip);
615                 return -EBUSY;
616         }
617         chip->dma2 = dma2;
618
619         chip->card = card;
620         chip->port = port;
621         spin_lock_init(&chip->lock);
622
623         if ((error = snd_ad1816a_probe(chip))) {
624                 snd_ad1816a_free(chip);
625                 return error;
626         }
627
628         snd_ad1816a_init(chip);
629
630         /* Register device */
631         if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
632                 snd_ad1816a_free(chip);
633                 return error;
634         }
635
636         *rchip = chip;
637         return 0;
638 }
639
640 static snd_pcm_ops_t snd_ad1816a_playback_ops = {
641         .open =         snd_ad1816a_playback_open,
642         .close =        snd_ad1816a_playback_close,
643         .ioctl =        snd_pcm_lib_ioctl,
644         .hw_params =    snd_ad1816a_hw_params,
645         .hw_free =      snd_ad1816a_hw_free,
646         .prepare =      snd_ad1816a_playback_prepare,
647         .trigger =      snd_ad1816a_playback_trigger,
648         .pointer =      snd_ad1816a_playback_pointer,
649 };
650
651 static snd_pcm_ops_t snd_ad1816a_capture_ops = {
652         .open =         snd_ad1816a_capture_open,
653         .close =        snd_ad1816a_capture_close,
654         .ioctl =        snd_pcm_lib_ioctl,
655         .hw_params =    snd_ad1816a_hw_params,
656         .hw_free =      snd_ad1816a_hw_free,
657         .prepare =      snd_ad1816a_capture_prepare,
658         .trigger =      snd_ad1816a_capture_trigger,
659         .pointer =      snd_ad1816a_capture_pointer,
660 };
661
662 static void snd_ad1816a_pcm_free(snd_pcm_t *pcm)
663 {
664         ad1816a_t *chip = pcm->private_data;
665         chip->pcm = NULL;
666         snd_pcm_lib_preallocate_free_for_all(pcm);
667 }
668
669 int snd_ad1816a_pcm(ad1816a_t *chip, int device, snd_pcm_t **rpcm)
670 {
671         int error;
672         snd_pcm_t *pcm;
673
674         if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
675                 return error;
676
677         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
678         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
679
680         pcm->private_data = chip;
681         pcm->private_free = snd_ad1816a_pcm_free;
682         pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
683
684         strcpy(pcm->name, snd_ad1816a_chip_id(chip));
685         snd_ad1816a_init(chip);
686
687         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
688                                               snd_dma_isa_data(),
689                                               64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
690
691         chip->pcm = pcm;
692         if (rpcm)
693                 *rpcm = pcm;
694         return 0;
695 }
696
697 #if 0 /* not used now */
698 static void snd_ad1816a_timer_free(snd_timer_t *timer)
699 {
700         ad1816a_t *chip = timer->private_data;
701         chip->timer = NULL;
702 }
703
704 int snd_ad1816a_timer(ad1816a_t *chip, int device, snd_timer_t **rtimer)
705 {
706         snd_timer_t *timer;
707         snd_timer_id_t 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         timer->private_free = snd_ad1816a_timer_free;
720         chip->timer = timer;
721         timer->hw = snd_ad1816a_timer_table;
722         if (rtimer)
723                 *rtimer = timer;
724         return 0;
725 }
726 #endif /* not used now */
727
728 /*
729  *
730  */
731
732 static int snd_ad1816a_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
733 {
734         static char *texts[8] = {
735                 "Line", "Mix", "CD", "Synth", "Video",
736                 "Mic", "Phone",
737         };
738
739         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
740         uinfo->count = 2;
741         uinfo->value.enumerated.items = 7;
742         if (uinfo->value.enumerated.item > 6)
743                 uinfo->value.enumerated.item = 6;
744         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
745         return 0;
746 }
747
748 static int snd_ad1816a_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
749 {
750         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
751         unsigned long flags;
752         unsigned short val;
753         
754         spin_lock_irqsave(&chip->lock, flags);
755         val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
756         spin_unlock_irqrestore(&chip->lock, flags);
757         ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
758         ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
759         return 0;
760 }
761
762 static int snd_ad1816a_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
763 {
764         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
765         unsigned long flags;
766         unsigned short val;
767         int change;
768         
769         if (ucontrol->value.enumerated.item[0] > 6 ||
770             ucontrol->value.enumerated.item[1] > 6)
771                 return -EINVAL;
772         val = (ucontrol->value.enumerated.item[0] << 12) |
773               (ucontrol->value.enumerated.item[1] << 4);
774         spin_lock_irqsave(&chip->lock, flags);
775         change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
776         snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
777         spin_unlock_irqrestore(&chip->lock, flags);
778         return change;
779 }
780
781 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
782 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
783   .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
784   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
785
786 static int snd_ad1816a_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
787 {
788         int mask = (kcontrol->private_value >> 16) & 0xff;
789
790         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
791         uinfo->count = 1;
792         uinfo->value.integer.min = 0;
793         uinfo->value.integer.max = mask;
794         return 0;
795 }
796
797 static int snd_ad1816a_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
798 {
799         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
800         unsigned long flags;
801         int reg = kcontrol->private_value & 0xff;
802         int shift = (kcontrol->private_value >> 8) & 0xff;
803         int mask = (kcontrol->private_value >> 16) & 0xff;
804         int invert = (kcontrol->private_value >> 24) & 0xff;
805         
806         spin_lock_irqsave(&chip->lock, flags);
807         ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
808         spin_unlock_irqrestore(&chip->lock, flags);
809         if (invert)
810                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
811         return 0;
812 }
813
814 static int snd_ad1816a_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
815 {
816         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
817         unsigned long flags;
818         int reg = kcontrol->private_value & 0xff;
819         int shift = (kcontrol->private_value >> 8) & 0xff;
820         int mask = (kcontrol->private_value >> 16) & 0xff;
821         int invert = (kcontrol->private_value >> 24) & 0xff;
822         int change;
823         unsigned short old_val, val;
824         
825         val = (ucontrol->value.integer.value[0] & mask);
826         if (invert)
827                 val = mask - val;
828         val <<= shift;
829         spin_lock_irqsave(&chip->lock, flags);
830         old_val = snd_ad1816a_read(chip, reg);
831         val = (old_val & ~(mask << shift)) | val;
832         change = val != old_val;
833         snd_ad1816a_write(chip, reg, val);
834         spin_unlock_irqrestore(&chip->lock, flags);
835         return change;
836 }
837
838 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
839 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
840   .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
841   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
842
843 static int snd_ad1816a_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
844 {
845         int mask = (kcontrol->private_value >> 16) & 0xff;
846
847         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
848         uinfo->count = 2;
849         uinfo->value.integer.min = 0;
850         uinfo->value.integer.max = mask;
851         return 0;
852 }
853
854 static int snd_ad1816a_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
855 {
856         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
857         unsigned long flags;
858         int reg = kcontrol->private_value & 0xff;
859         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
860         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
861         int mask = (kcontrol->private_value >> 16) & 0xff;
862         int invert = (kcontrol->private_value >> 24) & 0xff;
863         unsigned short val;
864         
865         spin_lock_irqsave(&chip->lock, flags);
866         val = snd_ad1816a_read(chip, reg);
867         ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
868         ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
869         spin_unlock_irqrestore(&chip->lock, flags);
870         if (invert) {
871                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
872                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
873         }
874         return 0;
875 }
876
877 static int snd_ad1816a_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
878 {
879         ad1816a_t *chip = snd_kcontrol_chip(kcontrol);
880         unsigned long flags;
881         int reg = kcontrol->private_value & 0xff;
882         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
883         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
884         int mask = (kcontrol->private_value >> 16) & 0xff;
885         int invert = (kcontrol->private_value >> 24) & 0xff;
886         int change;
887         unsigned short old_val, val1, val2;
888         
889         val1 = ucontrol->value.integer.value[0] & mask;
890         val2 = ucontrol->value.integer.value[1] & mask;
891         if (invert) {
892                 val1 = mask - val1;
893                 val2 = mask - val2;
894         }
895         val1 <<= shift_left;
896         val2 <<= shift_right;
897         spin_lock_irqsave(&chip->lock, flags);
898         old_val = snd_ad1816a_read(chip, reg);
899         val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
900         change = val1 != old_val;
901         snd_ad1816a_write(chip, reg, val1);
902         spin_unlock_irqrestore(&chip->lock, flags);
903         return change;
904 }
905
906 static snd_kcontrol_new_t snd_ad1816a_controls[] = {
907 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
908 AD1816A_DOUBLE("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1),
909 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
910 AD1816A_DOUBLE("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1),
911 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
912 AD1816A_DOUBLE("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1),
913 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
914 AD1816A_DOUBLE("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1),
915 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
916 AD1816A_DOUBLE("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1),
917 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
918 AD1816A_DOUBLE("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1),
919 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
920 AD1816A_SINGLE("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1),
921 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
922 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
923 AD1816A_DOUBLE("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1),
924 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
925 AD1816A_SINGLE("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1),
926 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
927 AD1816A_SINGLE("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1),
928 {
929         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
930         .name = "Capture Source",
931         .info = snd_ad1816a_info_mux,
932         .get = snd_ad1816a_get_mux,
933         .put = snd_ad1816a_put_mux,
934 },
935 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
936 AD1816A_DOUBLE("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0),
937 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
938 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
939 };
940                                         
941 int snd_ad1816a_mixer(ad1816a_t *chip)
942 {
943         snd_card_t *card;
944         unsigned int idx;
945         int err;
946
947         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
948
949         card = chip->card;
950
951         strcpy(card->mixername, snd_ad1816a_chip_id(chip));
952
953         for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
954                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
955                         return err;
956         }
957         return 0;
958 }
959
960 EXPORT_SYMBOL(snd_ad1816a_create);
961 EXPORT_SYMBOL(snd_ad1816a_pcm);
962 EXPORT_SYMBOL(snd_ad1816a_mixer);
963
964 static int __init alsa_ad1816a_init(void)
965 {
966         return 0;
967 }
968
969 static void __exit alsa_ad1816a_exit(void)
970 {
971 }
972
973 module_init(alsa_ad1816a_init)
974 module_exit(alsa_ad1816a_exit)