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Merge branch 'topic/snd_card_new-err' into topic/asoc
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / parisc / harmony.c
CommitLineData
1da177e4
LT		 1/* Hewlett-Packard Harmony audio driver
2 *
3 * This is a driver for the Harmony audio chipset found
4 * on the LASI ASIC of various early HP PA-RISC workstations.
5 *
6 * Copyright (C) 2004, Kyle McMartin <kyle@{debian.org,parisc-linux.org}>
7 *
8 * Based on the previous Harmony incarnations by,
9 * Copyright 2000 (c) Linuxcare Canada, Alex deVries
10 * Copyright 2000-2003 (c) Helge Deller
11 * Copyright 2001 (c) Matthieu Delahaye
12 * Copyright 2001 (c) Jean-Christophe Vaugeois
13 * Copyright 2003 (c) Laurent Canet
14 * Copyright 2004 (c) Stuart Brady
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License, version 2, as
18 * published by the Free Software Foundation.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 *
29 * Notes:
30 * - graveyard and silence buffers last for lifetime of
31 * the driver. playback and capture buffers are allocated
32 * per _open()/_close().
33 *
34 * TODO:
35 *
36 */
37
38#include <linux/init.h>
39#include <linux/slab.h>
40#include <linux/time.h>
41#include <linux/wait.h>
42#include <linux/delay.h>
43#include <linux/module.h>
44#include <linux/interrupt.h>
45#include <linux/spinlock.h>
46#include <linux/dma-mapping.h>
47
1da177e4
LT		 48#include <sound/core.h>
49#include <sound/pcm.h>
50#include <sound/control.h>
51#include <sound/rawmidi.h>
52#include <sound/initval.h>
53#include <sound/info.h>
54
55#include <asm/io.h>
56#include <asm/hardware.h>
57#include <asm/parisc-device.h>
58
59#include "harmony.h"
60
03f9ae25
TI		 61static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
62static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
63module_param(index, int, 0444);
64MODULE_PARM_DESC(index, "Index value for Harmony driver.");
65module_param(id, charp, 0444);
66MODULE_PARM_DESC(id, "ID string for Harmony driver.");
67
68
1da177e4
LT		 69static struct parisc_device_id snd_harmony_devtable[] = {
70 /* bushmaster / flounder */
71 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A },
72 /* 712 / 715 */
73 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B },
74 /* pace */
75 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E },
76 /* outfield / coral II */
77 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F },
78 { 0, }
79};
80
81MODULE_DEVICE_TABLE(parisc, snd_harmony_devtable);
82
83#define NAME "harmony"
84#define PFX NAME ": "
85
86static unsigned int snd_harmony_rates[] = {
87 5512, 6615, 8000, 9600,
88 11025, 16000, 18900, 22050,
89 27428, 32000, 33075, 37800,
90 44100, 48000
91};
92
93static unsigned int rate_bits[14] = {
94 HARMONY_SR_5KHZ, HARMONY_SR_6KHZ, HARMONY_SR_8KHZ,
95 HARMONY_SR_9KHZ, HARMONY_SR_11KHZ, HARMONY_SR_16KHZ,
96 HARMONY_SR_18KHZ, HARMONY_SR_22KHZ, HARMONY_SR_27KHZ,
97 HARMONY_SR_32KHZ, HARMONY_SR_33KHZ, HARMONY_SR_37KHZ,
98 HARMONY_SR_44KHZ, HARMONY_SR_48KHZ
99};
100
67b1020d 101static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1da177e4
LT		 102 .count = ARRAY_SIZE(snd_harmony_rates),
103 .list = snd_harmony_rates,
104 .mask = 0,
105};
106
67b1020d
TI		 107static inline unsigned long
108harmony_read(struct snd_harmony *h, unsigned r)
1da177e4
LT		 109{
110 return __raw_readl(h->iobase + r);
111}
112
67b1020d
TI		 113static inline void
114harmony_write(struct snd_harmony *h, unsigned r, unsigned long v)
1da177e4
LT		 115{
116 __raw_writel(v, h->iobase + r);
117}
118
67b1020d
TI		 119static inline void
120harmony_wait_for_control(struct snd_harmony *h)
1da177e4
LT		 121{
122 while (harmony_read(h, HARMONY_CNTL) & HARMONY_CNTL_C) ;
123}
124
67b1020d
TI		 125static inline void
126harmony_reset(struct snd_harmony *h)
1da177e4
LT		 127{
128 harmony_write(h, HARMONY_RESET, 1);
129 mdelay(50);
130 harmony_write(h, HARMONY_RESET, 0);
131}
132
133static void
67b1020d 134harmony_disable_interrupts(struct snd_harmony *h)
1da177e4
LT		 135{
136 u32 dstatus;
137 harmony_wait_for_control(h);
138 dstatus = harmony_read(h, HARMONY_DSTATUS);
139 dstatus &= ~HARMONY_DSTATUS_IE;
140 harmony_write(h, HARMONY_DSTATUS, dstatus);
141}
142
143static void
67b1020d 144harmony_enable_interrupts(struct snd_harmony *h)
1da177e4
LT		 145{
146 u32 dstatus;
147 harmony_wait_for_control(h);
148 dstatus = harmony_read(h, HARMONY_DSTATUS);
149 dstatus |= HARMONY_DSTATUS_IE;
150 harmony_write(h, HARMONY_DSTATUS, dstatus);
151}
152
153static void
67b1020d 154harmony_mute(struct snd_harmony *h)
1da177e4
LT		 155{
156 unsigned long flags;
157
158 spin_lock_irqsave(&h->mixer_lock, flags);
159 harmony_wait_for_control(h);
160 harmony_write(h, HARMONY_GAINCTL, HARMONY_GAIN_SILENCE);
161 spin_unlock_irqrestore(&h->mixer_lock, flags);
162}
163
164static void
67b1020d 165harmony_unmute(struct snd_harmony *h)
1da177e4
LT		 166{
167 unsigned long flags;
168
169 spin_lock_irqsave(&h->mixer_lock, flags);
170 harmony_wait_for_control(h);
171 harmony_write(h, HARMONY_GAINCTL, h->st.gain);
172 spin_unlock_irqrestore(&h->mixer_lock, flags);
173}
174
175static void
67b1020d 176harmony_set_control(struct snd_harmony *h)
1da177e4
LT		 177{
178 u32 ctrl;
179 unsigned long flags;
180
181 spin_lock_irqsave(&h->lock, flags);
182
183 ctrl = (HARMONY_CNTL_C |
184 (h->st.format << 6) |
185 (h->st.stereo << 5) |
186 (h->st.rate));
187
188 harmony_wait_for_control(h);
189 harmony_write(h, HARMONY_CNTL, ctrl);
190
191 spin_unlock_irqrestore(&h->lock, flags);
192}
193
194static irqreturn_t
7d12e780 195snd_harmony_interrupt(int irq, void *dev)
1da177e4
LT		 196{
197 u32 dstatus;
67b1020d 198 struct snd_harmony *h = dev;
1da177e4
LT		 199
200 spin_lock(&h->lock);
201 harmony_disable_interrupts(h);
202 harmony_wait_for_control(h);
203 dstatus = harmony_read(h, HARMONY_DSTATUS);
204 spin_unlock(&h->lock);
205
206 if (dstatus & HARMONY_DSTATUS_PN) {
3a165680 207 if (h->psubs && h->st.playing) {
1da177e4
LT		 208 spin_lock(&h->lock);
209 h->pbuf.buf += h->pbuf.count; /* PAGE_SIZE */
210 h->pbuf.buf %= h->pbuf.size; /* MAX_BUFS*PAGE_SIZE */
211
212 harmony_write(h, HARMONY_PNXTADD,
213 h->pbuf.addr + h->pbuf.buf);
214 h->stats.play_intr++;
215 spin_unlock(&h->lock);
216 snd_pcm_period_elapsed(h->psubs);
217 } else {
218 spin_lock(&h->lock);
219 harmony_write(h, HARMONY_PNXTADD, h->sdma.addr);
220 h->stats.silence_intr++;
221 spin_unlock(&h->lock);
222 }
223 }
224
225 if (dstatus & HARMONY_DSTATUS_RN) {
3a165680 226 if (h->csubs && h->st.capturing) {
1da177e4
LT		 227 spin_lock(&h->lock);
228 h->cbuf.buf += h->cbuf.count;
229 h->cbuf.buf %= h->cbuf.size;
230
231 harmony_write(h, HARMONY_RNXTADD,
232 h->cbuf.addr + h->cbuf.buf);
233 h->stats.rec_intr++;
234 spin_unlock(&h->lock);
235 snd_pcm_period_elapsed(h->csubs);
236 } else {
237 spin_lock(&h->lock);
238 harmony_write(h, HARMONY_RNXTADD, h->gdma.addr);
239 h->stats.graveyard_intr++;
240 spin_unlock(&h->lock);
241 }
242 }
243
244 spin_lock(&h->lock);
245 harmony_enable_interrupts(h);
246 spin_unlock(&h->lock);
247
248 return IRQ_HANDLED;
249}
250
251static unsigned int
252snd_harmony_rate_bits(int rate)
253{
254 unsigned int i;
255
256 for (i = 0; i < ARRAY_SIZE(snd_harmony_rates); i++)
257 if (snd_harmony_rates[i] == rate)
258 return rate_bits[i];
259
260 return HARMONY_SR_44KHZ;
261}
262
67b1020d 263static struct snd_pcm_hardware snd_harmony_playback =
1da177e4
LT		 264{
265 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
266 SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID |
267 SNDRV_PCM_INFO_BLOCK_TRANSFER),
268 .formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW |
269 SNDRV_PCM_FMTBIT_A_LAW),
270 .rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 |
271 SNDRV_PCM_RATE_KNOT),
272 .rate_min = 5512,
273 .rate_max = 48000,
274 .channels_min = 1,
275 .channels_max = 2,
276 .buffer_bytes_max = MAX_BUF_SIZE,
277 .period_bytes_min = BUF_SIZE,
278 .period_bytes_max = BUF_SIZE,
279 .periods_min = 1,
280 .periods_max = MAX_BUFS,
281 .fifo_size = 0,
282};
283
67b1020d 284static struct snd_pcm_hardware snd_harmony_capture =
1da177e4
LT		 285{
286 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
287 SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID |
288 SNDRV_PCM_INFO_BLOCK_TRANSFER),
289 .formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW |
290 SNDRV_PCM_FMTBIT_A_LAW),
291 .rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 |
292 SNDRV_PCM_RATE_KNOT),
293 .rate_min = 5512,
294 .rate_max = 48000,
295 .channels_min = 1,
296 .channels_max = 2,
297 .buffer_bytes_max = MAX_BUF_SIZE,
298 .period_bytes_min = BUF_SIZE,
299 .period_bytes_max = BUF_SIZE,
300 .periods_min = 1,
301 .periods_max = MAX_BUFS,
302 .fifo_size = 0,
303};
304
305static int
67b1020d 306snd_harmony_playback_trigger(struct snd_pcm_substream *ss, int cmd)
1da177e4 307{
67b1020d 308 struct snd_harmony *h = snd_pcm_substream_chip(ss);
1da177e4
LT		 309
310 if (h->st.capturing)
311 return -EBUSY;
312
03f9ae25 313 spin_lock(&h->lock);
1da177e4
LT		 314 switch (cmd) {
315 case SNDRV_PCM_TRIGGER_START:
316 h->st.playing = 1;
317 harmony_write(h, HARMONY_PNXTADD, h->pbuf.addr);
318 harmony_write(h, HARMONY_RNXTADD, h->gdma.addr);
319 harmony_unmute(h);
320 harmony_enable_interrupts(h);
321 break;
322 case SNDRV_PCM_TRIGGER_STOP:
323 h->st.playing = 0;
324 harmony_mute(h);
3a165680 325 harmony_write(h, HARMONY_PNXTADD, h->sdma.addr);
1da177e4
LT		 326 harmony_disable_interrupts(h);
327 break;
328 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
329 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
330 case SNDRV_PCM_TRIGGER_SUSPEND:
331 default:
03f9ae25 332 spin_unlock(&h->lock);
1da177e4
LT		 333 snd_BUG();
334 return -EINVAL;
335 }
03f9ae25 336 spin_unlock(&h->lock);
1da177e4
LT		 337
338 return 0;
339}
340
341static int
67b1020d 342snd_harmony_capture_trigger(struct snd_pcm_substream *ss, int cmd)
1da177e4 343{
67b1020d 344 struct snd_harmony *h = snd_pcm_substream_chip(ss);
1da177e4
LT		 345
346 if (h->st.playing)
347 return -EBUSY;
348
03f9ae25 349 spin_lock(&h->lock);
1da177e4
LT		 350 switch (cmd) {
351 case SNDRV_PCM_TRIGGER_START:
352 h->st.capturing = 1;
353 harmony_write(h, HARMONY_PNXTADD, h->sdma.addr);
354 harmony_write(h, HARMONY_RNXTADD, h->cbuf.addr);
355 harmony_unmute(h);
356 harmony_enable_interrupts(h);
357 break;
358 case SNDRV_PCM_TRIGGER_STOP:
359 h->st.capturing = 0;
3a165680
SB		 360 harmony_mute(h);
361 harmony_write(h, HARMONY_RNXTADD, h->gdma.addr);
362 harmony_disable_interrupts(h);
1da177e4
LT		 363 break;
364 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
365 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
366 case SNDRV_PCM_TRIGGER_SUSPEND:
367 default:
03f9ae25 368 spin_unlock(&h->lock);
1da177e4
LT		 369 snd_BUG();
370 return -EINVAL;
371 }
03f9ae25 372 spin_unlock(&h->lock);
1da177e4
LT		 373
374 return 0;
375}
376
377static int
67b1020d 378snd_harmony_set_data_format(struct snd_harmony *h, int fmt, int force)
1da177e4
LT		 379{
380 int o = h->st.format;
381 int n;
382
383 switch(fmt) {
384 case SNDRV_PCM_FORMAT_S16_BE:
385 n = HARMONY_DF_16BIT_LINEAR;
386 break;
387 case SNDRV_PCM_FORMAT_A_LAW:
388 n = HARMONY_DF_8BIT_ALAW;
389 break;
390 case SNDRV_PCM_FORMAT_MU_LAW:
391 n = HARMONY_DF_8BIT_ULAW;
392 break;
393 default:
394 n = HARMONY_DF_16BIT_LINEAR;
395 break;
396 }
397
398 if (force || o != n) {
399 snd_pcm_format_set_silence(fmt, h->sdma.area, SILENCE_BUFSZ /
400 (snd_pcm_format_physical_width(fmt)
401 / 8));
402 }
403
404 return n;
405}
406
407static int
67b1020d 408snd_harmony_playback_prepare(struct snd_pcm_substream *ss)
1da177e4 409{
67b1020d
TI		 410 struct snd_harmony *h = snd_pcm_substream_chip(ss);
411 struct snd_pcm_runtime *rt = ss->runtime;
1da177e4
LT		 412
413 if (h->st.capturing)
414 return -EBUSY;
415
416 h->pbuf.size = snd_pcm_lib_buffer_bytes(ss);
417 h->pbuf.count = snd_pcm_lib_period_bytes(ss);
3a165680
SB		 418 if (h->pbuf.buf >= h->pbuf.size)
419 h->pbuf.buf = 0;
1da177e4
LT		 420 h->st.playing = 0;
421
422 h->st.rate = snd_harmony_rate_bits(rt->rate);
423 h->st.format = snd_harmony_set_data_format(h, rt->format, 0);
424
425 if (rt->channels == 2)
426 h->st.stereo = HARMONY_SS_STEREO;
427 else
428 h->st.stereo = HARMONY_SS_MONO;
429
430 harmony_set_control(h);
431
432 h->pbuf.addr = rt->dma_addr;
433
434 return 0;
435}
436
437static int
67b1020d 438snd_harmony_capture_prepare(struct snd_pcm_substream *ss)
1da177e4 439{
67b1020d
TI		 440 struct snd_harmony *h = snd_pcm_substream_chip(ss);
441 struct snd_pcm_runtime *rt = ss->runtime;
1da177e4
LT		 442
443 if (h->st.playing)
444 return -EBUSY;
445
446 h->cbuf.size = snd_pcm_lib_buffer_bytes(ss);
447 h->cbuf.count = snd_pcm_lib_period_bytes(ss);
3a165680
SB		 448 if (h->cbuf.buf >= h->cbuf.size)
449 h->cbuf.buf = 0;
1da177e4
LT		 450 h->st.capturing = 0;
451
452 h->st.rate = snd_harmony_rate_bits(rt->rate);
453 h->st.format = snd_harmony_set_data_format(h, rt->format, 0);
454
455 if (rt->channels == 2)
456 h->st.stereo = HARMONY_SS_STEREO;
457 else
458 h->st.stereo = HARMONY_SS_MONO;
459
460 harmony_set_control(h);
461
462 h->cbuf.addr = rt->dma_addr;
463
464 return 0;
465}
466
467static snd_pcm_uframes_t
67b1020d 468snd_harmony_playback_pointer(struct snd_pcm_substream *ss)
1da177e4 469{
67b1020d
TI		 470 struct snd_pcm_runtime *rt = ss->runtime;
471 struct snd_harmony *h = snd_pcm_substream_chip(ss);
1da177e4
LT		 472 unsigned long pcuradd;
473 unsigned long played;
474
475 if (!(h->st.playing) || (h->psubs == NULL))
476 return 0;
477
478 if ((h->pbuf.addr == 0) || (h->pbuf.size == 0))
479 return 0;
480
481 pcuradd = harmony_read(h, HARMONY_PCURADD);
482 played = pcuradd - h->pbuf.addr;
483
484#ifdef HARMONY_DEBUG
485 printk(KERN_DEBUG PFX "playback_pointer is 0x%lx-0x%lx = %d bytes\n",
486 pcuradd, h->pbuf.addr, played);
487#endif
488
489 if (pcuradd > h->pbuf.addr + h->pbuf.size) {
490 return 0;
491 }
492
493 return bytes_to_frames(rt, played);
494}
495
496static snd_pcm_uframes_t
67b1020d 497snd_harmony_capture_pointer(struct snd_pcm_substream *ss)
1da177e4 498{
67b1020d
TI		 499 struct snd_pcm_runtime *rt = ss->runtime;
500 struct snd_harmony *h = snd_pcm_substream_chip(ss);
1da177e4
LT		 501 unsigned long rcuradd;
502 unsigned long caught;
503
504 if (!(h->st.capturing) || (h->csubs == NULL))
505 return 0;
506
507 if ((h->cbuf.addr == 0) || (h->cbuf.size == 0))
508 return 0;
509
510 rcuradd = harmony_read(h, HARMONY_RCURADD);
511 caught = rcuradd - h->cbuf.addr;
512
513#ifdef HARMONY_DEBUG
514 printk(KERN_DEBUG PFX "capture_pointer is 0x%lx-0x%lx = %d bytes\n",
515 rcuradd, h->cbuf.addr, caught);
516#endif
517
518 if (rcuradd > h->cbuf.addr + h->cbuf.size) {
519 return 0;
520 }
521
522 return bytes_to_frames(rt, caught);
523}
524
525static int
67b1020d 526snd_harmony_playback_open(struct snd_pcm_substream *ss)
1da177e4 527{
67b1020d
TI		 528 struct snd_harmony *h = snd_pcm_substream_chip(ss);
529 struct snd_pcm_runtime *rt = ss->runtime;
1da177e4
LT		 530 int err;
531
532 h->psubs = ss;
533 rt->hw = snd_harmony_playback;
534 snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE,
535 &hw_constraint_rates);
536
537 err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS);
538 if (err < 0)
539 return err;
540
541 return 0;
542}
543
544static int
67b1020d 545snd_harmony_capture_open(struct snd_pcm_substream *ss)
1da177e4 546{
67b1020d
TI		 547 struct snd_harmony *h = snd_pcm_substream_chip(ss);
548 struct snd_pcm_runtime *rt = ss->runtime;
1da177e4
LT		 549 int err;
550
551 h->csubs = ss;
552 rt->hw = snd_harmony_capture;
553 snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE,
554 &hw_constraint_rates);
555
556 err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS);
557 if (err < 0)
558 return err;
559
560 return 0;
561}
562
563static int
67b1020d 564snd_harmony_playback_close(struct snd_pcm_substream *ss)
1da177e4 565{
67b1020d 566 struct snd_harmony *h = snd_pcm_substream_chip(ss);
1da177e4
LT		 567 h->psubs = NULL;
568 return 0;
569}
570
571static int
67b1020d 572snd_harmony_capture_close(struct snd_pcm_substream *ss)
1da177e4 573{
67b1020d 574 struct snd_harmony *h = snd_pcm_substream_chip(ss);
1da177e4
LT		 575 h->csubs = NULL;
576 return 0;
577}
578
579static int
67b1020d
TI		 580snd_harmony_hw_params(struct snd_pcm_substream *ss,
581 struct snd_pcm_hw_params *hw)
1da177e4
LT		 582{
583 int err;
67b1020d 584 struct snd_harmony *h = snd_pcm_substream_chip(ss);
1da177e4
LT		 585
586 err = snd_pcm_lib_malloc_pages(ss, params_buffer_bytes(hw));
587 if (err > 0 && h->dma.type == SNDRV_DMA_TYPE_CONTINUOUS)
588 ss->runtime->dma_addr = __pa(ss->runtime->dma_area);
589
590 return err;
591}
592
593static int
67b1020d 594snd_harmony_hw_free(struct snd_pcm_substream *ss)
1da177e4
LT		 595{
596 return snd_pcm_lib_free_pages(ss);
597}
598
67b1020d 599static struct snd_pcm_ops snd_harmony_playback_ops = {
1da177e4
LT		 600 .open = snd_harmony_playback_open,
601 .close = snd_harmony_playback_close,
602 .ioctl = snd_pcm_lib_ioctl,
603 .hw_params = snd_harmony_hw_params,
604 .hw_free = snd_harmony_hw_free,
605 .prepare = snd_harmony_playback_prepare,
606 .trigger = snd_harmony_playback_trigger,
607 .pointer = snd_harmony_playback_pointer,
608};
609
67b1020d 610static struct snd_pcm_ops snd_harmony_capture_ops = {
1da177e4
LT		 611 .open = snd_harmony_capture_open,
612 .close = snd_harmony_capture_close,
613 .ioctl = snd_pcm_lib_ioctl,
614 .hw_params = snd_harmony_hw_params,
615 .hw_free = snd_harmony_hw_free,
616 .prepare = snd_harmony_capture_prepare,
617 .trigger = snd_harmony_capture_trigger,
618 .pointer = snd_harmony_capture_pointer,
619};
620
621static int
67b1020d 622snd_harmony_pcm_init(struct snd_harmony *h)
1da177e4 623{
67b1020d 624 struct snd_pcm *pcm;
1da177e4
LT		 625 int err;
626
627 harmony_disable_interrupts(h);
628
629 err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm);
630 if (err < 0)
631 return err;
632
633 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
634 &snd_harmony_playback_ops);
635 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
636 &snd_harmony_capture_ops);
637
638 pcm->private_data = h;
639 pcm->info_flags = 0;
640 strcpy(pcm->name, "harmony");
641 h->pcm = pcm;
642
643 h->psubs = NULL;
644 h->csubs = NULL;
645
646 /* initialize graveyard buffer */
647 h->dma.type = SNDRV_DMA_TYPE_DEV;
648 h->dma.dev = &h->dev->dev;
649 err = snd_dma_alloc_pages(h->dma.type,
650 h->dma.dev,
651 BUF_SIZE*GRAVEYARD_BUFS,
652 &h->gdma);
653 if (err < 0) {
654 printk(KERN_ERR PFX "cannot allocate graveyard buffer!\n");
655 return err;
656 }
657
658 /* initialize silence buffers */
659 err = snd_dma_alloc_pages(h->dma.type,
660 h->dma.dev,
661 BUF_SIZE*SILENCE_BUFS,
662 &h->sdma);
663 if (err < 0) {
664 printk(KERN_ERR PFX "cannot allocate silence buffer!\n");
665 return err;
666 }
667
668 /* pre-allocate space for DMA */
669 err = snd_pcm_lib_preallocate_pages_for_all(pcm, h->dma.type,
670 h->dma.dev,
671 MAX_BUF_SIZE,
672 MAX_BUF_SIZE);
673 if (err < 0) {
674 printk(KERN_ERR PFX "buffer allocation error: %d\n", err);
675 return err;
676 }
677
678 h->st.format = snd_harmony_set_data_format(h,
679 SNDRV_PCM_FORMAT_S16_BE, 1);
680
681 return 0;
682}
683
684static void
67b1020d 685snd_harmony_set_new_gain(struct snd_harmony *h)
1da177e4
LT		 686{
687 harmony_wait_for_control(h);
688 harmony_write(h, HARMONY_GAINCTL, h->st.gain);
689}
690
691static int
67b1020d
TI		 692snd_harmony_mixercontrol_info(struct snd_kcontrol *kc,
693 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 694{
695 int mask = (kc->private_value >> 16) & 0xff;
696 int left_shift = (kc->private_value) & 0xff;
697 int right_shift = (kc->private_value >> 8) & 0xff;
698
699 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN :
700 SNDRV_CTL_ELEM_TYPE_INTEGER;
701 uinfo->count = left_shift == right_shift ? 1 : 2;
702 uinfo->value.integer.min = 0;
703 uinfo->value.integer.max = mask;
704
705 return 0;
706}
707
708static int
67b1020d
TI		 709snd_harmony_volume_get(struct snd_kcontrol *kc,
710 struct snd_ctl_elem_value *ucontrol)
1da177e4 711{
67b1020d 712 struct snd_harmony *h = snd_kcontrol_chip(kc);
1da177e4
LT		 713 int shift_left = (kc->private_value) & 0xff;
714 int shift_right = (kc->private_value >> 8) & 0xff;
715 int mask = (kc->private_value >> 16) & 0xff;
716 int invert = (kc->private_value >> 24) & 0xff;
717 int left, right;
1da177e4 718
03f9ae25 719 spin_lock_irq(&h->mixer_lock);
1da177e4
LT		 720
721 left = (h->st.gain >> shift_left) & mask;
722 right = (h->st.gain >> shift_right) & mask;
1da177e4
LT		 723 if (invert) {
724 left = mask - left;
725 right = mask - right;
726 }
3a165680 727
1da177e4 728 ucontrol->value.integer.value[0] = left;
3a165680
SB		 729 if (shift_left != shift_right)
730 ucontrol->value.integer.value[1] = right;
1da177e4 731
03f9ae25 732 spin_unlock_irq(&h->mixer_lock);
1da177e4
LT		 733
734 return 0;
735}
736
737static int
67b1020d
TI		 738snd_harmony_volume_put(struct snd_kcontrol *kc,
739 struct snd_ctl_elem_value *ucontrol)
1da177e4 740{
67b1020d 741 struct snd_harmony *h = snd_kcontrol_chip(kc);
1da177e4
LT		 742 int shift_left = (kc->private_value) & 0xff;
743 int shift_right = (kc->private_value >> 8) & 0xff;
744 int mask = (kc->private_value >> 16) & 0xff;
745 int invert = (kc->private_value >> 24) & 0xff;
746 int left, right;
747 int old_gain = h->st.gain;
1da177e4 748
03f9ae25 749 spin_lock_irq(&h->mixer_lock);
3a165680 750
1da177e4 751 left = ucontrol->value.integer.value[0] & mask;
3a165680 752 if (invert)
1da177e4 753 left = mask - left;
3a165680
SB		 754 h->st.gain &= ~( (mask << shift_left ) );
755 h->st.gain |= (left << shift_left);
756
757 if (shift_left != shift_right) {
758 right = ucontrol->value.integer.value[1] & mask;
759 if (invert)
760 right = mask - right;
761 h->st.gain &= ~( (mask << shift_right) );
762 h->st.gain |= (right << shift_right);
1da177e4 763 }
3a165680
SB		 764
765 snd_harmony_set_new_gain(h);
766
03f9ae25 767 spin_unlock_irq(&h->mixer_lock);
3a165680
SB		 768
769 return h->st.gain != old_gain;
770}
771
772static int
67b1020d
TI		 773snd_harmony_captureroute_info(struct snd_kcontrol *kc,
774 struct snd_ctl_elem_info *uinfo)
3a165680
SB		 775{
776 static char *texts[2] = { "Line", "Mic" };
777 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
778 uinfo->count = 1;
779 uinfo->value.enumerated.items = 2;
780 if (uinfo->value.enumerated.item > 1)
781 uinfo->value.enumerated.item = 1;
782 strcpy(uinfo->value.enumerated.name,
783 texts[uinfo->value.enumerated.item]);
784 return 0;
785}
786
787static int
67b1020d
TI		 788snd_harmony_captureroute_get(struct snd_kcontrol *kc,
789 struct snd_ctl_elem_value *ucontrol)
3a165680 790{
67b1020d 791 struct snd_harmony *h = snd_kcontrol_chip(kc);
3a165680 792 int value;
3a165680 793
03f9ae25 794 spin_lock_irq(&h->mixer_lock);
3a165680
SB		 795
796 value = (h->st.gain >> HARMONY_GAIN_IS_SHIFT) & 1;
797 ucontrol->value.enumerated.item[0] = value;
798
03f9ae25 799 spin_unlock_irq(&h->mixer_lock);
3a165680
SB		 800
801 return 0;
802}
803
804static int
67b1020d
TI		 805snd_harmony_captureroute_put(struct snd_kcontrol *kc,
806 struct snd_ctl_elem_value *ucontrol)
3a165680 807{
67b1020d 808 struct snd_harmony *h = snd_kcontrol_chip(kc);
3a165680
SB		 809 int value;
810 int old_gain = h->st.gain;
1da177e4 811
03f9ae25 812 spin_lock_irq(&h->mixer_lock);
1da177e4 813
3a165680
SB		 814 value = ucontrol->value.enumerated.item[0] & 1;
815 h->st.gain &= ~HARMONY_GAIN_IS_MASK;
816 h->st.gain |= value << HARMONY_GAIN_IS_SHIFT;
817
1da177e4
LT		 818 snd_harmony_set_new_gain(h);
819
03f9ae25 820 spin_unlock_irq(&h->mixer_lock);
1da177e4 821
3a165680 822 return h->st.gain != old_gain;
1da177e4
LT		 823}
824
67b1020d 825#define HARMONY_CONTROLS ARRAY_SIZE(snd_harmony_controls)
1da177e4
LT		 826
827#define HARMONY_VOLUME(xname, left_shift, right_shift, mask, invert) \
828{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
829 .info = snd_harmony_mixercontrol_info, \
830 .get = snd_harmony_volume_get, .put = snd_harmony_volume_put, \
831 .private_value = ((left_shift) | ((right_shift) << 8) | \
832 ((mask) << 16) | ((invert) << 24)) }
833
67b1020d 834static struct snd_kcontrol_new snd_harmony_controls[] = {
3a165680 835 HARMONY_VOLUME("Master Playback Volume", HARMONY_GAIN_LO_SHIFT,
1da177e4
LT		 836 HARMONY_GAIN_RO_SHIFT, HARMONY_GAIN_OUT, 1),
837 HARMONY_VOLUME("Capture Volume", HARMONY_GAIN_LI_SHIFT,
838 HARMONY_GAIN_RI_SHIFT, HARMONY_GAIN_IN, 0),
3a165680
SB		 839 HARMONY_VOLUME("Monitor Volume", HARMONY_GAIN_MA_SHIFT,
840 HARMONY_GAIN_MA_SHIFT, HARMONY_GAIN_MA, 1),
841 {
842 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
843 .name = "Input Route",
844 .info = snd_harmony_captureroute_info,
845 .get = snd_harmony_captureroute_get,
846 .put = snd_harmony_captureroute_put
847 },
848 HARMONY_VOLUME("Internal Speaker Switch", HARMONY_GAIN_SE_SHIFT,
849 HARMONY_GAIN_SE_SHIFT, 1, 0),
850 HARMONY_VOLUME("Line-Out Switch", HARMONY_GAIN_LE_SHIFT,
851 HARMONY_GAIN_LE_SHIFT, 1, 0),
852 HARMONY_VOLUME("Headphones Switch", HARMONY_GAIN_HE_SHIFT,
853 HARMONY_GAIN_HE_SHIFT, 1, 0),
1da177e4
LT		 854};
855
992378a0 856static void __devinit
67b1020d 857snd_harmony_mixer_reset(struct snd_harmony *h)
1da177e4
LT		 858{
859 harmony_mute(h);
860 harmony_reset(h);
861 h->st.gain = HARMONY_GAIN_DEFAULT;
862 harmony_unmute(h);
863}
864
992378a0 865static int __devinit
67b1020d 866snd_harmony_mixer_init(struct snd_harmony *h)
1da177e4 867{
67b1020d 868 struct snd_card *card = h->card;
1da177e4
LT		 869 int idx, err;
870
5e246b85 871 if (snd_BUG_ON(!h))
c86a456b 872 return -EINVAL;
1da177e4
LT		 873 strcpy(card->mixername, "Harmony Gain control interface");
874
875 for (idx = 0; idx < HARMONY_CONTROLS; idx++) {
876 err = snd_ctl_add(card,
877 snd_ctl_new1(&snd_harmony_controls[idx], h));
878 if (err < 0)
879 return err;
880 }
881
882 snd_harmony_mixer_reset(h);
883
884 return 0;
885}
886
887static int
67b1020d 888snd_harmony_free(struct snd_harmony *h)
1da177e4
LT		 889{
890 if (h->gdma.addr)
891 snd_dma_free_pages(&h->gdma);
892 if (h->sdma.addr)
893 snd_dma_free_pages(&h->sdma);
894
895 if (h->irq >= 0)
896 free_irq(h->irq, h);
897
898 if (h->iobase)
899 iounmap(h->iobase);
900
901 parisc_set_drvdata(h->dev, NULL);
902
903 kfree(h);
904 return 0;
905}
906
907static int
67b1020d 908snd_harmony_dev_free(struct snd_device *dev)
1da177e4 909{
67b1020d 910 struct snd_harmony *h = dev->device_data;
1da177e4
LT		 911 return snd_harmony_free(h);
912}
913
914static int __devinit
67b1020d 915snd_harmony_create(struct snd_card *card,
1da177e4 916 struct parisc_device *padev,
67b1020d 917 struct snd_harmony **rchip)
1da177e4
LT		 918{
919 int err;
67b1020d
TI		 920 struct snd_harmony *h;
921 static struct snd_device_ops ops = {
1da177e4
LT		 922 .dev_free = snd_harmony_dev_free,
923 };
924
925 *rchip = NULL;
926
03f9ae25 927 h = kzalloc(sizeof(*h), GFP_KERNEL);
1da177e4
LT		 928 if (h == NULL)
929 return -ENOMEM;
930
53f01bba 931 h->hpa = padev->hpa.start;
1da177e4
LT		 932 h->card = card;
933 h->dev = padev;
03f9ae25 934 h->irq = -1;
53f01bba 935 h->iobase = ioremap_nocache(padev->hpa.start, HARMONY_SIZE);
1da177e4
LT		 936 if (h->iobase == NULL) {
937 printk(KERN_ERR PFX "unable to remap hpa 0x%lx\n",
53f01bba 938 padev->hpa.start);
1da177e4
LT		 939 err = -EBUSY;
940 goto free_and_ret;
941 }
942
03f9ae25 943 err = request_irq(padev->irq, snd_harmony_interrupt, 0,
1da177e4
LT		 944 "harmony", h);
945 if (err) {
946 printk(KERN_ERR PFX "could not obtain interrupt %d",
03f9ae25 947 padev->irq);
1da177e4
LT		 948 goto free_and_ret;
949 }
03f9ae25 950 h->irq = padev->irq;
1da177e4
LT		 951
952 spin_lock_init(&h->mixer_lock);
953 spin_lock_init(&h->lock);
954
955 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
956 h, &ops)) < 0) {
957 goto free_and_ret;
958 }
959
a76af199
TI		 960 snd_card_set_dev(card, &padev->dev);
961
1da177e4
LT		 962 *rchip = h;
963
964 return 0;
965
966free_and_ret:
967 snd_harmony_free(h);
968 return err;
969}
970
971static int __devinit
972snd_harmony_probe(struct parisc_device *padev)
973{
974 int err;
67b1020d
TI		 975 struct snd_card *card;
976 struct snd_harmony *h;
1da177e4 977
bd7dd77c
TI		 978 err = snd_card_create(index, id, THIS_MODULE, 0, &card);
979 if (err < 0)
980 return err;
1da177e4
LT		 981
982 err = snd_harmony_create(card, padev, &h);
03f9ae25 983 if (err < 0)
1da177e4 984 goto free_and_ret;
1da177e4
LT		 985
986 err = snd_harmony_pcm_init(h);
03f9ae25 987 if (err < 0)
1da177e4 988 goto free_and_ret;
1da177e4
LT		 989
990 err = snd_harmony_mixer_init(h);
03f9ae25 991 if (err < 0)
1da177e4 992 goto free_and_ret;
1da177e4
LT		 993
994 strcpy(card->driver, "harmony");
995 strcpy(card->shortname, "Harmony");
996 sprintf(card->longname, "%s at 0x%lx, irq %i",
997 card->shortname, h->hpa, h->irq);
998
999 err = snd_card_register(card);
03f9ae25 1000 if (err < 0)
1da177e4 1001 goto free_and_ret;
1da177e4 1002
03f9ae25 1003 parisc_set_drvdata(padev, card);
1da177e4
LT		 1004 return 0;
1005
1006free_and_ret:
1007 snd_card_free(card);
1008 return err;
1009}
1010
1011static int __devexit
1012snd_harmony_remove(struct parisc_device *padev)
1013{
03f9ae25
TI		 1014 snd_card_free(parisc_get_drvdata(padev));
1015 parisc_set_drvdata(padev, NULL);
1da177e4
LT		 1016 return 0;
1017}
1018
1019static struct parisc_driver snd_harmony_driver = {
1020 .name = "harmony",
1021 .id_table = snd_harmony_devtable,
1022 .probe = snd_harmony_probe,
1023 .remove = snd_harmony_remove,
1024};
1025
1026static int __init
1027alsa_harmony_init(void)
1028{
03f9ae25 1029 return register_parisc_driver(&snd_harmony_driver);
1da177e4
LT		 1030}
1031
1032static void __exit
1033alsa_harmony_fini(void)
1034{
67b1020d 1035 unregister_parisc_driver(&snd_harmony_driver);
1da177e4
LT		 1036}
1037
1038MODULE_LICENSE("GPL");
1039MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>");
1040MODULE_DESCRIPTION("Harmony sound driver");
1041
1042module_init(alsa_harmony_init);
1043module_exit(alsa_harmony_fini);
kernel source for telekom puls (alcatel/mediatek)