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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/isa/ad1816a/ad1816a_lib.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/isa/ad1816a/ad1816a_lib.c')
-rw-r--r--sound/isa/ad1816a/ad1816a_lib.c974
1 files changed, 974 insertions, 0 deletions
diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
new file mode 100644
index 000000000000..625b2eff14a1
--- /dev/null
+++ b/sound/isa/ad1816a/ad1816a_lib.c
@@ -0,0 +1,974 @@
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
33MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
34MODULE_DESCRIPTION("lowlevel code for Analog Devices AD1816A chip");
35MODULE_LICENSE("GPL");
36
37static 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
49static 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
55static 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
62static 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
69static 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
76static 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
84static 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
92static 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
113static 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
149static 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
181static 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
207static 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
214static 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
221static 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
227static int snd_ad1816a_hw_free(snd_pcm_substream_t * substream)
228{
229 return snd_pcm_lib_free_pages(substream);
230}
231
232static 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
261static 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
291static 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
301static 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
312static 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
337static 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
356static 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 */
376static 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
383static 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
390static unsigned long snd_ad1816a_timer_resolution(snd_timer_t *timer)
391{
392 snd_assert(timer != NULL, return 0);
393
394 return 10000;
395}
396
397static 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
416static 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
429static 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
442static 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
458static 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
474static 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
483static 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
493static 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
513static 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
537static 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
557static 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
563static 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
576int 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
640static 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
651static 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
662static 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
669int 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 */
698static void snd_ad1816a_timer_free(snd_timer_t *timer)
699{
700 ad1816a_t *chip = timer->private_data;
701 chip->timer = NULL;
702}
703
704int 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
732static 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
748static 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
762static 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
786static 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
797static 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
814static 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
843static 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
854static 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
877static 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
906static snd_kcontrol_new_t snd_ad1816a_controls[] = {
907AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
908AD1816A_DOUBLE("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1),
909AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
910AD1816A_DOUBLE("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1),
911AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
912AD1816A_DOUBLE("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1),
913AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
914AD1816A_DOUBLE("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1),
915AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
916AD1816A_DOUBLE("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1),
917AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
918AD1816A_DOUBLE("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1),
919AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
920AD1816A_SINGLE("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1),
921AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
922AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
923AD1816A_DOUBLE("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1),
924AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
925AD1816A_SINGLE("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1),
926AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
927AD1816A_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},
935AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
936AD1816A_DOUBLE("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0),
937AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
938AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
939};
940
941int 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
960EXPORT_SYMBOL(snd_ad1816a_create);
961EXPORT_SYMBOL(snd_ad1816a_pcm);
962EXPORT_SYMBOL(snd_ad1816a_mixer);
963
964static int __init alsa_ad1816a_init(void)
965{
966 return 0;
967}
968
969static void __exit alsa_ad1816a_exit(void)
970{
971}
972
973module_init(alsa_ad1816a_init)
974module_exit(alsa_ad1816a_exit)
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 10:08:57 -0500