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ALSA: ali5451: Fix out-of-bound position reporting
[deliverable/linux.git] / sound / pci / ali5451 / ali5451.c
1 /*
2 * Matt Wu <Matt_Wu@acersoftech.com.cn>
3 * Apr 26, 2001
4 * Routines for control of ALi pci audio M5451
5 *
6 * BUGS:
7 * --
8 *
9 * TODO:
10 * --
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public Lcodecnse as published by
14 * the Free Software Foundation; either version 2 of the Lcodecnse, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public Lcodecnse for more details.
21 *
22 * You should have received a copy of the GNU General Public Lcodecnse
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 */
27
28 #include <linux/io.h>
29 #include <linux/delay.h>
30 #include <linux/interrupt.h>
31 #include <linux/init.h>
32 #include <linux/pci.h>
33 #include <linux/slab.h>
34 #include <linux/module.h>
35 #include <linux/dma-mapping.h>
36 #include <sound/core.h>
37 #include <sound/pcm.h>
38 #include <sound/info.h>
39 #include <sound/ac97_codec.h>
40 #include <sound/mpu401.h>
41 #include <sound/initval.h>
42
43 MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
44 MODULE_DESCRIPTION("ALI M5451");
45 MODULE_LICENSE("GPL");
46 MODULE_SUPPORTED_DEVICE("{{ALI,M5451,pci},{ALI,M5451}}");
47
48 static int index = SNDRV_DEFAULT_IDX1; /* Index */
49 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
50 static int pcm_channels = 32;
51 static bool spdif;
52
53 module_param(index, int, 0444);
54 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
55 module_param(id, charp, 0444);
56 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
57 module_param(pcm_channels, int, 0444);
58 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
59 module_param(spdif, bool, 0444);
60 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
61
62 /* just for backward compatibility */
63 static bool enable;
64 module_param(enable, bool, 0444);
65
66
67 /*
68 * Constants definition
69 */
70
71 #define DEVICE_ID_ALI5451 ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
72
73
74 #define ALI_CHANNELS 32
75
76 #define ALI_PCM_IN_CHANNEL 31
77 #define ALI_SPDIF_IN_CHANNEL 19
78 #define ALI_SPDIF_OUT_CHANNEL 15
79 #define ALI_CENTER_CHANNEL 24
80 #define ALI_LEF_CHANNEL 23
81 #define ALI_SURR_LEFT_CHANNEL 26
82 #define ALI_SURR_RIGHT_CHANNEL 25
83 #define ALI_MODEM_IN_CHANNEL 21
84 #define ALI_MODEM_OUT_CHANNEL 20
85
86 #define SNDRV_ALI_VOICE_TYPE_PCM 01
87 #define SNDRV_ALI_VOICE_TYPE_OTH 02
88
89 #define ALI_5451_V02 0x02
90
91 /*
92 * Direct Registers
93 */
94
95 #define ALI_LEGACY_DMAR0 0x00 /* ADR0 */
96 #define ALI_LEGACY_DMAR4 0x04 /* CNT0 */
97 #define ALI_LEGACY_DMAR11 0x0b /* MOD */
98 #define ALI_LEGACY_DMAR15 0x0f /* MMR */
99 #define ALI_MPUR0 0x20
100 #define ALI_MPUR1 0x21
101 #define ALI_MPUR2 0x22
102 #define ALI_MPUR3 0x23
103
104 #define ALI_AC97_WRITE 0x40
105 #define ALI_AC97_READ 0x44
106
107 #define ALI_SCTRL 0x48
108 #define ALI_SPDIF_OUT_ENABLE 0x20
109 #define ALI_SCTRL_LINE_IN2 (1 << 9)
110 #define ALI_SCTRL_GPIO_IN2 (1 << 13)
111 #define ALI_SCTRL_LINE_OUT_EN (1 << 20)
112 #define ALI_SCTRL_GPIO_OUT_EN (1 << 23)
113 #define ALI_SCTRL_CODEC1_READY (1 << 24)
114 #define ALI_SCTRL_CODEC2_READY (1 << 25)
115 #define ALI_AC97_GPIO 0x4c
116 #define ALI_AC97_GPIO_ENABLE 0x8000
117 #define ALI_AC97_GPIO_DATA_SHIFT 16
118 #define ALI_SPDIF_CS 0x70
119 #define ALI_SPDIF_CTRL 0x74
120 #define ALI_SPDIF_IN_FUNC_ENABLE 0x02
121 #define ALI_SPDIF_IN_CH_STATUS 0x40
122 #define ALI_SPDIF_OUT_CH_STATUS 0xbf
123 #define ALI_START 0x80
124 #define ALI_STOP 0x84
125 #define ALI_CSPF 0x90
126 #define ALI_AINT 0x98
127 #define ALI_GC_CIR 0xa0
128 #define ENDLP_IE 0x00001000
129 #define MIDLP_IE 0x00002000
130 #define ALI_AINTEN 0xa4
131 #define ALI_VOLUME 0xa8
132 #define ALI_SBDELTA_DELTA_R 0xac
133 #define ALI_MISCINT 0xb0
134 #define ADDRESS_IRQ 0x00000020
135 #define TARGET_REACHED 0x00008000
136 #define MIXER_OVERFLOW 0x00000800
137 #define MIXER_UNDERFLOW 0x00000400
138 #define GPIO_IRQ 0x01000000
139 #define ALI_SBBL_SBCL 0xc0
140 #define ALI_SBCTRL_SBE2R_SBDD 0xc4
141 #define ALI_STIMER 0xc8
142 #define ALI_GLOBAL_CONTROL 0xd4
143 #define ALI_SPDIF_OUT_SEL_PCM 0x00000400 /* bit 10 */
144 #define ALI_SPDIF_IN_SUPPORT 0x00000800 /* bit 11 */
145 #define ALI_SPDIF_OUT_CH_ENABLE 0x00008000 /* bit 15 */
146 #define ALI_SPDIF_IN_CH_ENABLE 0x00080000 /* bit 19 */
147 #define ALI_PCM_IN_ENABLE 0x80000000 /* bit 31 */
148
149 #define ALI_CSO_ALPHA_FMS 0xe0
150 #define ALI_LBA 0xe4
151 #define ALI_ESO_DELTA 0xe8
152 #define ALI_GVSEL_PAN_VOC_CTRL_EC 0xf0
153 #define ALI_EBUF1 0xf4
154 #define ALI_EBUF2 0xf8
155
156 #define ALI_REG(codec, x) ((codec)->port + x)
157
158 #define MAX_CODECS 2
159
160
161 struct snd_ali;
162 struct snd_ali_voice;
163
164 struct snd_ali_channel_control {
165 /* register data */
166 struct REGDATA {
167 unsigned int start;
168 unsigned int stop;
169 unsigned int aint;
170 unsigned int ainten;
171 } data;
172
173 /* register addresses */
174 struct REGS {
175 unsigned int start;
176 unsigned int stop;
177 unsigned int aint;
178 unsigned int ainten;
179 unsigned int ac97read;
180 unsigned int ac97write;
181 } regs;
182
183 };
184
185 struct snd_ali_voice {
186 unsigned int number;
187 unsigned int use :1,
188 pcm :1,
189 midi :1,
190 mode :1,
191 synth :1,
192 running :1;
193
194 /* PCM data */
195 struct snd_ali *codec;
196 struct snd_pcm_substream *substream;
197 struct snd_ali_voice *extra;
198
199 int eso; /* final ESO value for channel */
200 int count; /* runtime->period_size */
201
202 /* --- */
203
204 void *private_data;
205 void (*private_free)(void *private_data);
206 };
207
208
209 struct snd_alidev {
210
211 struct snd_ali_voice voices[ALI_CHANNELS];
212
213 unsigned int chcnt; /* num of opened channels */
214 unsigned int chmap; /* bitmap for opened channels */
215 unsigned int synthcount;
216
217 };
218
219
220 #define ALI_GLOBAL_REGS 56
221 #define ALI_CHANNEL_REGS 8
222 struct snd_ali_image {
223 u32 regs[ALI_GLOBAL_REGS];
224 u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
225 };
226
227
228 struct snd_ali {
229 int irq;
230 unsigned long port;
231 unsigned char revision;
232
233 unsigned int hw_initialized :1;
234 unsigned int spdif_support :1;
235
236 struct pci_dev *pci;
237 struct pci_dev *pci_m1533;
238 struct pci_dev *pci_m7101;
239
240 struct snd_card *card;
241 struct snd_pcm *pcm[MAX_CODECS];
242 struct snd_alidev synth;
243 struct snd_ali_channel_control chregs;
244
245 /* S/PDIF Mask */
246 unsigned int spdif_mask;
247
248 unsigned int spurious_irq_count;
249 unsigned int spurious_irq_max_delta;
250
251 unsigned int num_of_codecs;
252
253 struct snd_ac97_bus *ac97_bus;
254 struct snd_ac97 *ac97[MAX_CODECS];
255 unsigned short ac97_ext_id;
256 unsigned short ac97_ext_status;
257
258 spinlock_t reg_lock;
259 spinlock_t voice_alloc;
260
261 #ifdef CONFIG_PM_SLEEP
262 struct snd_ali_image *image;
263 #endif
264 };
265
266 static const struct pci_device_id snd_ali_ids[] = {
267 {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
268 {0, }
269 };
270 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
271
272 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
273 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
274 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
275 unsigned short);
276
277 /*
278 * AC97 ACCESS
279 */
280
281 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
282 unsigned int port)
283 {
284 return (unsigned int)inl(ALI_REG(codec, port));
285 }
286
287 static inline void snd_ali_5451_poke(struct snd_ali *codec,
288 unsigned int port,
289 unsigned int val)
290 {
291 outl((unsigned int)val, ALI_REG(codec, port));
292 }
293
294 static int snd_ali_codec_ready(struct snd_ali *codec,
295 unsigned int port)
296 {
297 unsigned long end_time;
298 unsigned int res;
299
300 end_time = jiffies + msecs_to_jiffies(250);
301
302 for (;;) {
303 res = snd_ali_5451_peek(codec,port);
304 if (!(res & 0x8000))
305 return 0;
306 if (!time_after_eq(end_time, jiffies))
307 break;
308 schedule_timeout_uninterruptible(1);
309 }
310
311 snd_ali_5451_poke(codec, port, res & ~0x8000);
312 dev_dbg(codec->card->dev, "ali_codec_ready: codec is not ready.\n ");
313 return -EIO;
314 }
315
316 static int snd_ali_stimer_ready(struct snd_ali *codec)
317 {
318 unsigned long end_time;
319 unsigned long dwChk1,dwChk2;
320
321 dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
322 end_time = jiffies + msecs_to_jiffies(250);
323
324 for (;;) {
325 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
326 if (dwChk2 != dwChk1)
327 return 0;
328 if (!time_after_eq(end_time, jiffies))
329 break;
330 schedule_timeout_uninterruptible(1);
331 }
332
333 dev_err(codec->card->dev, "ali_stimer_read: stimer is not ready.\n");
334 return -EIO;
335 }
336
337 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
338 unsigned short reg,
339 unsigned short val)
340 {
341 unsigned int dwVal;
342 unsigned int port;
343
344 if (reg >= 0x80) {
345 dev_err(codec->card->dev,
346 "ali_codec_poke: reg(%xh) invalid.\n", reg);
347 return;
348 }
349
350 port = codec->chregs.regs.ac97write;
351
352 if (snd_ali_codec_ready(codec, port) < 0)
353 return;
354 if (snd_ali_stimer_ready(codec) < 0)
355 return;
356
357 dwVal = (unsigned int) (reg & 0xff);
358 dwVal |= 0x8000 | (val << 16);
359 if (secondary)
360 dwVal |= 0x0080;
361 if (codec->revision == ALI_5451_V02)
362 dwVal |= 0x0100;
363
364 snd_ali_5451_poke(codec, port, dwVal);
365
366 return ;
367 }
368
369 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
370 int secondary,
371 unsigned short reg)
372 {
373 unsigned int dwVal;
374 unsigned int port;
375
376 if (reg >= 0x80) {
377 dev_err(codec->card->dev,
378 "ali_codec_peek: reg(%xh) invalid.\n", reg);
379 return ~0;
380 }
381
382 port = codec->chregs.regs.ac97read;
383
384 if (snd_ali_codec_ready(codec, port) < 0)
385 return ~0;
386 if (snd_ali_stimer_ready(codec) < 0)
387 return ~0;
388
389 dwVal = (unsigned int) (reg & 0xff);
390 dwVal |= 0x8000; /* bit 15*/
391 if (secondary)
392 dwVal |= 0x0080;
393
394 snd_ali_5451_poke(codec, port, dwVal);
395
396 if (snd_ali_stimer_ready(codec) < 0)
397 return ~0;
398 if (snd_ali_codec_ready(codec, port) < 0)
399 return ~0;
400
401 return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
402 }
403
404 static void snd_ali_codec_write(struct snd_ac97 *ac97,
405 unsigned short reg,
406 unsigned short val )
407 {
408 struct snd_ali *codec = ac97->private_data;
409
410 dev_dbg(codec->card->dev, "codec_write: reg=%xh data=%xh.\n", reg, val);
411 if (reg == AC97_GPIO_STATUS) {
412 outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
413 ALI_REG(codec, ALI_AC97_GPIO));
414 return;
415 }
416 snd_ali_codec_poke(codec, ac97->num, reg, val);
417 return ;
418 }
419
420
421 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
422 unsigned short reg)
423 {
424 struct snd_ali *codec = ac97->private_data;
425
426 dev_dbg(codec->card->dev, "codec_read reg=%xh.\n", reg);
427 return snd_ali_codec_peek(codec, ac97->num, reg);
428 }
429
430 /*
431 * AC97 Reset
432 */
433
434 static int snd_ali_reset_5451(struct snd_ali *codec)
435 {
436 struct pci_dev *pci_dev;
437 unsigned short wCount, wReg;
438 unsigned int dwVal;
439
440 pci_dev = codec->pci_m1533;
441 if (pci_dev) {
442 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
443 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
444 mdelay(5);
445 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
446 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
447 mdelay(5);
448 }
449
450 pci_dev = codec->pci;
451 pci_read_config_dword(pci_dev, 0x44, &dwVal);
452 pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
453 udelay(500);
454 pci_read_config_dword(pci_dev, 0x44, &dwVal);
455 pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
456 mdelay(5);
457
458 wCount = 200;
459 while(wCount--) {
460 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
461 if ((wReg & 0x000f) == 0x000f)
462 return 0;
463 mdelay(5);
464 }
465
466 /* non-fatal if you have a non PM capable codec */
467 /* dev_warn(codec->card->dev, "ali5451: reset time out\n"); */
468 return 0;
469 }
470
471 /*
472 * ALI 5451 Controller
473 */
474
475 static void snd_ali_enable_special_channel(struct snd_ali *codec,
476 unsigned int channel)
477 {
478 unsigned long dwVal;
479
480 dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
481 dwVal |= 1 << (channel & 0x0000001f);
482 outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
483 }
484
485 static void snd_ali_disable_special_channel(struct snd_ali *codec,
486 unsigned int channel)
487 {
488 unsigned long dwVal;
489
490 dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
491 dwVal &= ~(1 << (channel & 0x0000001f));
492 outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
493 }
494
495 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
496 {
497 unsigned int gc;
498
499 gc = inl(ALI_REG(codec, ALI_GC_CIR));
500 gc |= ENDLP_IE;
501 gc |= MIDLP_IE;
502 outl( gc, ALI_REG(codec, ALI_GC_CIR));
503 }
504
505 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
506 {
507 unsigned int gc;
508
509 gc = inl(ALI_REG(codec, ALI_GC_CIR));
510 gc &= ~ENDLP_IE;
511 gc &= ~MIDLP_IE;
512 outl(gc, ALI_REG(codec, ALI_GC_CIR));
513 }
514
515 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
516 unsigned int channel)
517 {
518 unsigned int mask;
519 struct snd_ali_channel_control *pchregs = &(codec->chregs);
520
521 dev_dbg(codec->card->dev, "disable_voice_irq channel=%d\n", channel);
522
523 mask = 1 << (channel & 0x1f);
524 pchregs->data.ainten = inl(ALI_REG(codec, pchregs->regs.ainten));
525 pchregs->data.ainten &= ~mask;
526 outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
527 }
528
529 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
530 {
531 unsigned int idx = channel & 0x1f;
532
533 if (codec->synth.chcnt >= ALI_CHANNELS){
534 dev_err(codec->card->dev,
535 "ali_alloc_pcm_channel: no free channels.\n");
536 return -1;
537 }
538
539 if (!(codec->synth.chmap & (1 << idx))) {
540 codec->synth.chmap |= 1 << idx;
541 codec->synth.chcnt++;
542 dev_dbg(codec->card->dev, "alloc_pcm_channel no. %d.\n", idx);
543 return idx;
544 }
545 return -1;
546 }
547
548 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
549 {
550 int idx;
551 int result = -1;
552
553 dev_dbg(codec->card->dev,
554 "find_free_channel: for %s\n", rec ? "rec" : "pcm");
555
556 /* recording */
557 if (rec) {
558 if (codec->spdif_support &&
559 (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
560 ALI_SPDIF_IN_SUPPORT))
561 idx = ALI_SPDIF_IN_CHANNEL;
562 else
563 idx = ALI_PCM_IN_CHANNEL;
564
565 result = snd_ali_alloc_pcm_channel(codec, idx);
566 if (result >= 0)
567 return result;
568 else {
569 dev_err(codec->card->dev,
570 "ali_find_free_channel: record channel is busy now.\n");
571 return -1;
572 }
573 }
574
575 /* playback... */
576 if (codec->spdif_support &&
577 (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
578 ALI_SPDIF_OUT_CH_ENABLE)) {
579 idx = ALI_SPDIF_OUT_CHANNEL;
580 result = snd_ali_alloc_pcm_channel(codec, idx);
581 if (result >= 0)
582 return result;
583 else
584 dev_err(codec->card->dev,
585 "ali_find_free_channel: S/PDIF out channel is in busy now.\n");
586 }
587
588 for (idx = 0; idx < ALI_CHANNELS; idx++) {
589 result = snd_ali_alloc_pcm_channel(codec, idx);
590 if (result >= 0)
591 return result;
592 }
593 dev_err(codec->card->dev, "ali_find_free_channel: no free channels.\n");
594 return -1;
595 }
596
597 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
598 {
599 unsigned int idx = channel & 0x0000001f;
600
601 dev_dbg(codec->card->dev, "free_channel_pcm channel=%d\n", channel);
602
603 if (channel < 0 || channel >= ALI_CHANNELS)
604 return;
605
606 if (!(codec->synth.chmap & (1 << idx))) {
607 dev_err(codec->card->dev,
608 "ali_free_channel_pcm: channel %d is not in use.\n",
609 channel);
610 return;
611 } else {
612 codec->synth.chmap &= ~(1 << idx);
613 codec->synth.chcnt--;
614 }
615 }
616
617 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
618 {
619 unsigned int mask = 1 << (channel & 0x1f);
620
621 dev_dbg(codec->card->dev, "stop_voice: channel=%d\n", channel);
622 outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
623 }
624
625 /*
626 * S/PDIF Part
627 */
628
629 static void snd_ali_delay(struct snd_ali *codec,int interval)
630 {
631 unsigned long begintimer,currenttimer;
632
633 begintimer = inl(ALI_REG(codec, ALI_STIMER));
634 currenttimer = inl(ALI_REG(codec, ALI_STIMER));
635
636 while (currenttimer < begintimer + interval) {
637 if (snd_ali_stimer_ready(codec) < 0)
638 break;
639 currenttimer = inl(ALI_REG(codec, ALI_STIMER));
640 cpu_relax();
641 }
642 }
643
644 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
645 {
646 u16 wval;
647 u16 count = 0;
648 u8 bval, R1 = 0, R2;
649
650 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
651 bval |= 0x1F;
652 outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
653
654 while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
655 count ++;
656 snd_ali_delay(codec, 6);
657 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
658 R1 = bval & 0x1F;
659 }
660
661 if (count > 50000) {
662 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
663 return;
664 }
665
666 for (count = 0; count <= 50000; count++) {
667 snd_ali_delay(codec, 6);
668 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
669 R2 = bval & 0x1F;
670 if (R2 != R1)
671 R1 = R2;
672 else
673 break;
674 }
675
676 if (count > 50000) {
677 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
678 return;
679 }
680
681 if (R2 >= 0x0b && R2 <= 0x0e) {
682 wval = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
683 wval &= 0xe0f0;
684 wval |= (0x09 << 8) | 0x05;
685 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
686
687 bval = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
688 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
689 } else if (R2 == 0x12) {
690 wval = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
691 wval &= 0xe0f0;
692 wval |= (0x0e << 8) | 0x08;
693 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
694
695 bval = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
696 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
697 }
698 }
699
700 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
701 {
702 u32 dwRate;
703 u8 bval;
704
705 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
706 bval &= 0x7f;
707 bval |= 0x40;
708 outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
709
710 snd_ali_detect_spdif_rate(codec);
711
712 bval = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
713 bval &= 0x0f;
714
715 switch (bval) {
716 case 0: dwRate = 44100; break;
717 case 1: dwRate = 48000; break;
718 case 2: dwRate = 32000; break;
719 default: dwRate = 0; break;
720 }
721
722 return dwRate;
723 }
724
725 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
726 {
727 unsigned int dwVal;
728
729 dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
730 dwVal |= ALI_SPDIF_IN_SUPPORT;
731 outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
732
733 dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
734 dwVal |= 0x02;
735 outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
736
737 snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
738 }
739
740 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
741 {
742 unsigned int dwVal;
743
744 dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
745 dwVal &= ~ALI_SPDIF_IN_SUPPORT;
746 outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
747
748 snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
749 }
750
751
752 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
753 {
754 unsigned char bVal;
755 unsigned int dwRate;
756
757 switch (rate) {
758 case 32000: dwRate = 0x300; break;
759 case 48000: dwRate = 0x200; break;
760 default: dwRate = 0; break;
761 }
762
763 bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
764 bVal &= (unsigned char)(~(1<<6));
765
766 bVal |= 0x80; /* select right */
767 outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
768 outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
769
770 bVal &= ~0x80; /* select left */
771 outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
772 outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
773 }
774
775 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
776 {
777 unsigned short wVal;
778 unsigned char bVal;
779 struct pci_dev *pci_dev;
780
781 pci_dev = codec->pci_m1533;
782 if (pci_dev == NULL)
783 return;
784 pci_read_config_byte(pci_dev, 0x61, &bVal);
785 bVal |= 0x40;
786 pci_write_config_byte(pci_dev, 0x61, bVal);
787 pci_read_config_byte(pci_dev, 0x7d, &bVal);
788 bVal |= 0x01;
789 pci_write_config_byte(pci_dev, 0x7d, bVal);
790
791 pci_read_config_byte(pci_dev, 0x7e, &bVal);
792 bVal &= (~0x20);
793 bVal |= 0x10;
794 pci_write_config_byte(pci_dev, 0x7e, bVal);
795
796 bVal = inb(ALI_REG(codec, ALI_SCTRL));
797 outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
798
799 bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
800 outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
801
802 wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
803 wVal |= ALI_SPDIF_OUT_SEL_PCM;
804 outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
805 snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
806 }
807
808 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
809 {
810 unsigned short wVal;
811
812 wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
813 wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
814 outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
815 /*
816 wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
817 if (flag & ALI_SPDIF_OUT_NON_PCM)
818 wVal |= 0x0002;
819 else
820 wVal &= (~0x0002);
821 outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
822 */
823 snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
824 }
825
826 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
827 {
828 unsigned short wVal;
829
830 wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
831 wVal |= ALI_SPDIF_OUT_SEL_PCM;
832 outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
833
834 snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
835 }
836
837 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
838 {
839 unsigned char bVal;
840
841 bVal = inb(ALI_REG(codec, ALI_SCTRL));
842 outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
843
844 snd_ali_disable_spdif_chnout(codec);
845 }
846
847 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
848 {
849 struct snd_ali_voice *pvoice;
850 struct snd_ali_channel_control *pchregs;
851 unsigned int old, mask;
852
853 pchregs = &(codec->chregs);
854
855 /* check if interrupt occurred for channel */
856 old = pchregs->data.aint;
857 mask = 1U << (channel & 0x1f);
858
859 if (!(old & mask))
860 return;
861
862 pvoice = &codec->synth.voices[channel];
863
864 udelay(100);
865 spin_lock(&codec->reg_lock);
866
867 if (pvoice->pcm && pvoice->substream) {
868 /* pcm interrupt */
869 if (pvoice->running) {
870 dev_dbg(codec->card->dev,
871 "update_ptr: cso=%4.4x cspf=%d.\n",
872 inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2)),
873 (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask);
874 spin_unlock(&codec->reg_lock);
875 snd_pcm_period_elapsed(pvoice->substream);
876 spin_lock(&codec->reg_lock);
877 } else {
878 snd_ali_stop_voice(codec, channel);
879 snd_ali_disable_voice_irq(codec, channel);
880 }
881 } else if (codec->synth.voices[channel].synth) {
882 /* synth interrupt */
883 } else if (codec->synth.voices[channel].midi) {
884 /* midi interrupt */
885 } else {
886 /* unknown interrupt */
887 snd_ali_stop_voice(codec, channel);
888 snd_ali_disable_voice_irq(codec, channel);
889 }
890 spin_unlock(&codec->reg_lock);
891 outl(mask,ALI_REG(codec,pchregs->regs.aint));
892 pchregs->data.aint = old & (~mask);
893 }
894
895 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
896 {
897 struct snd_ali *codec = dev_id;
898 int channel;
899 unsigned int audio_int;
900 struct snd_ali_channel_control *pchregs;
901
902 if (codec == NULL || !codec->hw_initialized)
903 return IRQ_NONE;
904
905 audio_int = inl(ALI_REG(codec, ALI_MISCINT));
906 if (!audio_int)
907 return IRQ_NONE;
908
909 pchregs = &(codec->chregs);
910 if (audio_int & ADDRESS_IRQ) {
911 /* get interrupt status for all channels */
912 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
913 for (channel = 0; channel < ALI_CHANNELS; channel++)
914 snd_ali_update_ptr(codec, channel);
915 }
916 outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
917 ALI_REG(codec, ALI_MISCINT));
918
919 return IRQ_HANDLED;
920 }
921
922
923 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
924 int type, int rec, int channel)
925 {
926 struct snd_ali_voice *pvoice;
927 int idx;
928
929 dev_dbg(codec->card->dev, "alloc_voice: type=%d rec=%d\n", type, rec);
930
931 spin_lock_irq(&codec->voice_alloc);
932 if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
933 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
934 snd_ali_find_free_channel(codec,rec);
935 if (idx < 0) {
936 dev_err(codec->card->dev, "ali_alloc_voice: err.\n");
937 spin_unlock_irq(&codec->voice_alloc);
938 return NULL;
939 }
940 pvoice = &(codec->synth.voices[idx]);
941 pvoice->codec = codec;
942 pvoice->use = 1;
943 pvoice->pcm = 1;
944 pvoice->mode = rec;
945 spin_unlock_irq(&codec->voice_alloc);
946 return pvoice;
947 }
948 spin_unlock_irq(&codec->voice_alloc);
949 return NULL;
950 }
951
952
953 static void snd_ali_free_voice(struct snd_ali * codec,
954 struct snd_ali_voice *pvoice)
955 {
956 void (*private_free)(void *);
957 void *private_data;
958
959 dev_dbg(codec->card->dev, "free_voice: channel=%d\n", pvoice->number);
960 if (!pvoice->use)
961 return;
962 snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
963 spin_lock_irq(&codec->voice_alloc);
964 private_free = pvoice->private_free;
965 private_data = pvoice->private_data;
966 pvoice->private_free = NULL;
967 pvoice->private_data = NULL;
968 if (pvoice->pcm)
969 snd_ali_free_channel_pcm(codec, pvoice->number);
970 pvoice->use = pvoice->pcm = pvoice->synth = 0;
971 pvoice->substream = NULL;
972 spin_unlock_irq(&codec->voice_alloc);
973 if (private_free)
974 private_free(private_data);
975 }
976
977
978 static void snd_ali_clear_voices(struct snd_ali *codec,
979 unsigned int v_min,
980 unsigned int v_max)
981 {
982 unsigned int i;
983
984 for (i = v_min; i <= v_max; i++) {
985 snd_ali_stop_voice(codec, i);
986 snd_ali_disable_voice_irq(codec, i);
987 }
988 }
989
990 static void snd_ali_write_voice_regs(struct snd_ali *codec,
991 unsigned int Channel,
992 unsigned int LBA,
993 unsigned int CSO,
994 unsigned int ESO,
995 unsigned int DELTA,
996 unsigned int ALPHA_FMS,
997 unsigned int GVSEL,
998 unsigned int PAN,
999 unsigned int VOL,
1000 unsigned int CTRL,
1001 unsigned int EC)
1002 {
1003 unsigned int ctlcmds[4];
1004
1005 outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
1006
1007 ctlcmds[0] = (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1008 ctlcmds[1] = LBA;
1009 ctlcmds[2] = (ESO << 16) | (DELTA & 0x0ffff);
1010 ctlcmds[3] = (GVSEL << 31) |
1011 ((PAN & 0x0000007f) << 24) |
1012 ((VOL & 0x000000ff) << 16) |
1013 ((CTRL & 0x0000000f) << 12) |
1014 (EC & 0x00000fff);
1015
1016 outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1017
1018 outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1019 outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1020 outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1021 outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1022
1023 outl(0x30000000, ALI_REG(codec, ALI_EBUF1)); /* Still Mode */
1024 outl(0x30000000, ALI_REG(codec, ALI_EBUF2)); /* Still Mode */
1025 }
1026
1027 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1028 {
1029 unsigned int delta;
1030
1031 if (rate < 4000)
1032 rate = 4000;
1033 if (rate > 48000)
1034 rate = 48000;
1035
1036 if (rec) {
1037 if (rate == 44100)
1038 delta = 0x116a;
1039 else if (rate == 8000)
1040 delta = 0x6000;
1041 else if (rate == 48000)
1042 delta = 0x1000;
1043 else
1044 delta = ((48000 << 12) / rate) & 0x0000ffff;
1045 } else {
1046 if (rate == 44100)
1047 delta = 0xeb3;
1048 else if (rate == 8000)
1049 delta = 0x2ab;
1050 else if (rate == 48000)
1051 delta = 0x1000;
1052 else
1053 delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1054 }
1055
1056 return delta;
1057 }
1058
1059 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1060 {
1061 unsigned int CTRL;
1062 struct snd_pcm_runtime *runtime = substream->runtime;
1063
1064 /* set ctrl mode
1065 CTRL default: 8-bit (unsigned) mono, loop mode enabled
1066 */
1067 CTRL = 0x00000001;
1068 if (snd_pcm_format_width(runtime->format) == 16)
1069 CTRL |= 0x00000008; /* 16-bit data */
1070 if (!snd_pcm_format_unsigned(runtime->format))
1071 CTRL |= 0x00000002; /* signed data */
1072 if (runtime->channels > 1)
1073 CTRL |= 0x00000004; /* stereo data */
1074 return CTRL;
1075 }
1076
1077 /*
1078 * PCM part
1079 */
1080
1081 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1082 int cmd)
1083
1084 {
1085 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1086 struct snd_pcm_substream *s;
1087 unsigned int what, whati, capture_flag;
1088 struct snd_ali_voice *pvoice, *evoice;
1089 unsigned int val;
1090 int do_start;
1091
1092 switch (cmd) {
1093 case SNDRV_PCM_TRIGGER_START:
1094 case SNDRV_PCM_TRIGGER_RESUME:
1095 do_start = 1;
1096 break;
1097 case SNDRV_PCM_TRIGGER_STOP:
1098 case SNDRV_PCM_TRIGGER_SUSPEND:
1099 do_start = 0;
1100 break;
1101 default:
1102 return -EINVAL;
1103 }
1104
1105 what = whati = capture_flag = 0;
1106 snd_pcm_group_for_each_entry(s, substream) {
1107 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1108 pvoice = s->runtime->private_data;
1109 evoice = pvoice->extra;
1110 what |= 1 << (pvoice->number & 0x1f);
1111 if (evoice == NULL)
1112 whati |= 1 << (pvoice->number & 0x1f);
1113 else {
1114 whati |= 1 << (evoice->number & 0x1f);
1115 what |= 1 << (evoice->number & 0x1f);
1116 }
1117 if (do_start) {
1118 pvoice->running = 1;
1119 if (evoice != NULL)
1120 evoice->running = 1;
1121 } else {
1122 pvoice->running = 0;
1123 if (evoice != NULL)
1124 evoice->running = 0;
1125 }
1126 snd_pcm_trigger_done(s, substream);
1127 if (pvoice->mode)
1128 capture_flag = 1;
1129 }
1130 }
1131 spin_lock(&codec->reg_lock);
1132 if (!do_start)
1133 outl(what, ALI_REG(codec, ALI_STOP));
1134 val = inl(ALI_REG(codec, ALI_AINTEN));
1135 if (do_start)
1136 val |= whati;
1137 else
1138 val &= ~whati;
1139 outl(val, ALI_REG(codec, ALI_AINTEN));
1140 if (do_start)
1141 outl(what, ALI_REG(codec, ALI_START));
1142 dev_dbg(codec->card->dev, "trigger: what=%xh whati=%xh\n", what, whati);
1143 spin_unlock(&codec->reg_lock);
1144
1145 return 0;
1146 }
1147
1148 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1149 struct snd_pcm_hw_params *hw_params)
1150 {
1151 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1152 struct snd_pcm_runtime *runtime = substream->runtime;
1153 struct snd_ali_voice *pvoice = runtime->private_data;
1154 struct snd_ali_voice *evoice = pvoice->extra;
1155 int err;
1156
1157 err = snd_pcm_lib_malloc_pages(substream,
1158 params_buffer_bytes(hw_params));
1159 if (err < 0)
1160 return err;
1161
1162 /* voice management */
1163
1164 if (params_buffer_size(hw_params) / 2 !=
1165 params_period_size(hw_params)) {
1166 if (!evoice) {
1167 evoice = snd_ali_alloc_voice(codec,
1168 SNDRV_ALI_VOICE_TYPE_PCM,
1169 0, -1);
1170 if (!evoice)
1171 return -ENOMEM;
1172 pvoice->extra = evoice;
1173 evoice->substream = substream;
1174 }
1175 } else {
1176 if (evoice) {
1177 snd_ali_free_voice(codec, evoice);
1178 pvoice->extra = evoice = NULL;
1179 }
1180 }
1181
1182 return 0;
1183 }
1184
1185 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1186 {
1187 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1188 struct snd_pcm_runtime *runtime = substream->runtime;
1189 struct snd_ali_voice *pvoice = runtime->private_data;
1190 struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1191
1192 snd_pcm_lib_free_pages(substream);
1193 if (evoice) {
1194 snd_ali_free_voice(codec, evoice);
1195 pvoice->extra = NULL;
1196 }
1197 return 0;
1198 }
1199
1200 static int snd_ali_hw_params(struct snd_pcm_substream *substream,
1201 struct snd_pcm_hw_params *hw_params)
1202 {
1203 return snd_pcm_lib_malloc_pages(substream,
1204 params_buffer_bytes(hw_params));
1205 }
1206
1207 static int snd_ali_hw_free(struct snd_pcm_substream *substream)
1208 {
1209 return snd_pcm_lib_free_pages(substream);
1210 }
1211
1212 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1213 {
1214 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1215 struct snd_pcm_runtime *runtime = substream->runtime;
1216 struct snd_ali_voice *pvoice = runtime->private_data;
1217 struct snd_ali_voice *evoice = pvoice->extra;
1218
1219 unsigned int LBA;
1220 unsigned int Delta;
1221 unsigned int ESO;
1222 unsigned int CTRL;
1223 unsigned int GVSEL;
1224 unsigned int PAN;
1225 unsigned int VOL;
1226 unsigned int EC;
1227
1228 dev_dbg(codec->card->dev, "playback_prepare ...\n");
1229
1230 spin_lock_irq(&codec->reg_lock);
1231
1232 /* set Delta (rate) value */
1233 Delta = snd_ali_convert_rate(runtime->rate, 0);
1234
1235 if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1236 pvoice->number == ALI_PCM_IN_CHANNEL)
1237 snd_ali_disable_special_channel(codec, pvoice->number);
1238 else if (codec->spdif_support &&
1239 (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1240 ALI_SPDIF_OUT_CH_ENABLE)
1241 && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1242 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1243 Delta = 0x1000;
1244 }
1245
1246 /* set Loop Back Address */
1247 LBA = runtime->dma_addr;
1248
1249 /* set interrupt count size */
1250 pvoice->count = runtime->period_size;
1251
1252 /* set target ESO for channel */
1253 pvoice->eso = runtime->buffer_size;
1254
1255 dev_dbg(codec->card->dev, "playback_prepare: eso=%xh count=%xh\n",
1256 pvoice->eso, pvoice->count);
1257
1258 /* set ESO to capture first MIDLP interrupt */
1259 ESO = pvoice->eso -1;
1260 /* set ctrl mode */
1261 CTRL = snd_ali_control_mode(substream);
1262
1263 GVSEL = 1;
1264 PAN = 0;
1265 VOL = 0;
1266 EC = 0;
1267 dev_dbg(codec->card->dev, "playback_prepare:\n");
1268 dev_dbg(codec->card->dev,
1269 "ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1270 pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1271 snd_ali_write_voice_regs(codec,
1272 pvoice->number,
1273 LBA,
1274 0, /* cso */
1275 ESO,
1276 Delta,
1277 0, /* alpha */
1278 GVSEL,
1279 PAN,
1280 VOL,
1281 CTRL,
1282 EC);
1283 if (evoice) {
1284 evoice->count = pvoice->count;
1285 evoice->eso = pvoice->count << 1;
1286 ESO = evoice->eso - 1;
1287 snd_ali_write_voice_regs(codec,
1288 evoice->number,
1289 LBA,
1290 0, /* cso */
1291 ESO,
1292 Delta,
1293 0, /* alpha */
1294 GVSEL,
1295 0x7f,
1296 0x3ff,
1297 CTRL,
1298 EC);
1299 }
1300 spin_unlock_irq(&codec->reg_lock);
1301 return 0;
1302 }
1303
1304
1305 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1306 {
1307 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1308 struct snd_pcm_runtime *runtime = substream->runtime;
1309 struct snd_ali_voice *pvoice = runtime->private_data;
1310 unsigned int LBA;
1311 unsigned int Delta;
1312 unsigned int ESO;
1313 unsigned int CTRL;
1314 unsigned int GVSEL;
1315 unsigned int PAN;
1316 unsigned int VOL;
1317 unsigned int EC;
1318 u8 bValue;
1319
1320 spin_lock_irq(&codec->reg_lock);
1321
1322 dev_dbg(codec->card->dev, "ali_prepare...\n");
1323
1324 snd_ali_enable_special_channel(codec,pvoice->number);
1325
1326 Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1327 pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1328 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1329
1330 /* Prepare capture intr channel */
1331 if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1332
1333 unsigned int rate;
1334
1335 spin_unlock_irq(&codec->reg_lock);
1336 if (codec->revision != ALI_5451_V02)
1337 return -1;
1338
1339 rate = snd_ali_get_spdif_in_rate(codec);
1340 if (rate == 0) {
1341 dev_warn(codec->card->dev,
1342 "ali_capture_preapre: spdif rate detect err!\n");
1343 rate = 48000;
1344 }
1345 spin_lock_irq(&codec->reg_lock);
1346 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1347 if (bValue & 0x10) {
1348 outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1349 dev_warn(codec->card->dev,
1350 "clear SPDIF parity error flag.\n");
1351 }
1352
1353 if (rate != 48000)
1354 Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1355 }
1356
1357 /* set target ESO for channel */
1358 pvoice->eso = runtime->buffer_size;
1359
1360 /* set interrupt count size */
1361 pvoice->count = runtime->period_size;
1362
1363 /* set Loop Back Address */
1364 LBA = runtime->dma_addr;
1365
1366 /* set ESO to capture first MIDLP interrupt */
1367 ESO = pvoice->eso - 1;
1368 CTRL = snd_ali_control_mode(substream);
1369 GVSEL = 0;
1370 PAN = 0x00;
1371 VOL = 0x00;
1372 EC = 0;
1373
1374 snd_ali_write_voice_regs( codec,
1375 pvoice->number,
1376 LBA,
1377 0, /* cso */
1378 ESO,
1379 Delta,
1380 0, /* alpha */
1381 GVSEL,
1382 PAN,
1383 VOL,
1384 CTRL,
1385 EC);
1386
1387 spin_unlock_irq(&codec->reg_lock);
1388
1389 return 0;
1390 }
1391
1392
1393 static snd_pcm_uframes_t
1394 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1395 {
1396 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1397 struct snd_pcm_runtime *runtime = substream->runtime;
1398 struct snd_ali_voice *pvoice = runtime->private_data;
1399 unsigned int cso;
1400
1401 spin_lock(&codec->reg_lock);
1402 if (!pvoice->running) {
1403 spin_unlock(&codec->reg_lock);
1404 return 0;
1405 }
1406 outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1407 cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1408 spin_unlock(&codec->reg_lock);
1409 dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
1410
1411 cso %= runtime->buffer_size;
1412 return cso;
1413 }
1414
1415
1416 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1417 {
1418 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1419 struct snd_pcm_runtime *runtime = substream->runtime;
1420 struct snd_ali_voice *pvoice = runtime->private_data;
1421 unsigned int cso;
1422
1423 spin_lock(&codec->reg_lock);
1424 if (!pvoice->running) {
1425 spin_unlock(&codec->reg_lock);
1426 return 0;
1427 }
1428 outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1429 cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1430 spin_unlock(&codec->reg_lock);
1431
1432 cso %= runtime->buffer_size;
1433 return cso;
1434 }
1435
1436 static struct snd_pcm_hardware snd_ali_playback =
1437 {
1438 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1439 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1440 SNDRV_PCM_INFO_MMAP_VALID |
1441 SNDRV_PCM_INFO_RESUME |
1442 SNDRV_PCM_INFO_SYNC_START),
1443 .formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1444 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1445 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1446 .rate_min = 4000,
1447 .rate_max = 48000,
1448 .channels_min = 1,
1449 .channels_max = 2,
1450 .buffer_bytes_max = (256*1024),
1451 .period_bytes_min = 64,
1452 .period_bytes_max = (256*1024),
1453 .periods_min = 1,
1454 .periods_max = 1024,
1455 .fifo_size = 0,
1456 };
1457
1458 /*
1459 * Capture support device description
1460 */
1461
1462 static struct snd_pcm_hardware snd_ali_capture =
1463 {
1464 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1465 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1466 SNDRV_PCM_INFO_MMAP_VALID |
1467 SNDRV_PCM_INFO_RESUME |
1468 SNDRV_PCM_INFO_SYNC_START),
1469 .formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1470 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1471 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1472 .rate_min = 4000,
1473 .rate_max = 48000,
1474 .channels_min = 1,
1475 .channels_max = 2,
1476 .buffer_bytes_max = (128*1024),
1477 .period_bytes_min = 64,
1478 .period_bytes_max = (128*1024),
1479 .periods_min = 1,
1480 .periods_max = 1024,
1481 .fifo_size = 0,
1482 };
1483
1484 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1485 {
1486 struct snd_ali_voice *pvoice = runtime->private_data;
1487 struct snd_ali *codec;
1488
1489 if (pvoice) {
1490 codec = pvoice->codec;
1491 snd_ali_free_voice(pvoice->codec, pvoice);
1492 }
1493 }
1494
1495 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1496 int channel, struct snd_pcm_hardware *phw)
1497 {
1498 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1499 struct snd_pcm_runtime *runtime = substream->runtime;
1500 struct snd_ali_voice *pvoice;
1501
1502 pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1503 channel);
1504 if (!pvoice)
1505 return -EAGAIN;
1506
1507 pvoice->substream = substream;
1508 runtime->private_data = pvoice;
1509 runtime->private_free = snd_ali_pcm_free_substream;
1510
1511 runtime->hw = *phw;
1512 snd_pcm_set_sync(substream);
1513 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1514 0, 64*1024);
1515 return 0;
1516 }
1517
1518 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1519 {
1520 return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1521 }
1522
1523 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1524 {
1525 return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1526 }
1527
1528 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1529 {
1530 return 0;
1531 }
1532
1533 static int snd_ali_close(struct snd_pcm_substream *substream)
1534 {
1535 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1536 struct snd_ali_voice *pvoice = substream->runtime->private_data;
1537
1538 snd_ali_disable_special_channel(codec,pvoice->number);
1539
1540 return 0;
1541 }
1542
1543 static struct snd_pcm_ops snd_ali_playback_ops = {
1544 .open = snd_ali_playback_open,
1545 .close = snd_ali_playback_close,
1546 .ioctl = snd_pcm_lib_ioctl,
1547 .hw_params = snd_ali_playback_hw_params,
1548 .hw_free = snd_ali_playback_hw_free,
1549 .prepare = snd_ali_playback_prepare,
1550 .trigger = snd_ali_trigger,
1551 .pointer = snd_ali_playback_pointer,
1552 };
1553
1554 static struct snd_pcm_ops snd_ali_capture_ops = {
1555 .open = snd_ali_capture_open,
1556 .close = snd_ali_close,
1557 .ioctl = snd_pcm_lib_ioctl,
1558 .hw_params = snd_ali_hw_params,
1559 .hw_free = snd_ali_hw_free,
1560 .prepare = snd_ali_prepare,
1561 .trigger = snd_ali_trigger,
1562 .pointer = snd_ali_pointer,
1563 };
1564
1565 /*
1566 * Modem PCM
1567 */
1568
1569 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1570 struct snd_pcm_hw_params *hw_params)
1571 {
1572 struct snd_ali *chip = snd_pcm_substream_chip(substream);
1573 unsigned int modem_num = chip->num_of_codecs - 1;
1574 snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1575 params_rate(hw_params));
1576 snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1577 return snd_ali_hw_params(substream, hw_params);
1578 }
1579
1580 static struct snd_pcm_hardware snd_ali_modem =
1581 {
1582 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1583 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1584 SNDRV_PCM_INFO_MMAP_VALID |
1585 SNDRV_PCM_INFO_RESUME |
1586 SNDRV_PCM_INFO_SYNC_START),
1587 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1588 .rates = (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1589 SNDRV_PCM_RATE_16000),
1590 .rate_min = 8000,
1591 .rate_max = 16000,
1592 .channels_min = 1,
1593 .channels_max = 1,
1594 .buffer_bytes_max = (256*1024),
1595 .period_bytes_min = 64,
1596 .period_bytes_max = (256*1024),
1597 .periods_min = 1,
1598 .periods_max = 1024,
1599 .fifo_size = 0,
1600 };
1601
1602 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1603 int channel)
1604 {
1605 static unsigned int rates[] = {8000, 9600, 12000, 16000};
1606 static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1607 .count = ARRAY_SIZE(rates),
1608 .list = rates,
1609 .mask = 0,
1610 };
1611 int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1612
1613 if (err)
1614 return err;
1615 return snd_pcm_hw_constraint_list(substream->runtime, 0,
1616 SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1617 }
1618
1619 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1620 {
1621 return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1622 }
1623
1624 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1625 {
1626 return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1627 }
1628
1629 static struct snd_pcm_ops snd_ali_modem_playback_ops = {
1630 .open = snd_ali_modem_playback_open,
1631 .close = snd_ali_close,
1632 .ioctl = snd_pcm_lib_ioctl,
1633 .hw_params = snd_ali_modem_hw_params,
1634 .hw_free = snd_ali_hw_free,
1635 .prepare = snd_ali_prepare,
1636 .trigger = snd_ali_trigger,
1637 .pointer = snd_ali_pointer,
1638 };
1639
1640 static struct snd_pcm_ops snd_ali_modem_capture_ops = {
1641 .open = snd_ali_modem_capture_open,
1642 .close = snd_ali_close,
1643 .ioctl = snd_pcm_lib_ioctl,
1644 .hw_params = snd_ali_modem_hw_params,
1645 .hw_free = snd_ali_hw_free,
1646 .prepare = snd_ali_prepare,
1647 .trigger = snd_ali_trigger,
1648 .pointer = snd_ali_pointer,
1649 };
1650
1651
1652 struct ali_pcm_description {
1653 char *name;
1654 unsigned int playback_num;
1655 unsigned int capture_num;
1656 struct snd_pcm_ops *playback_ops;
1657 struct snd_pcm_ops *capture_ops;
1658 unsigned short class;
1659 };
1660
1661
1662 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1663 {
1664 struct snd_ali *codec = pcm->private_data;
1665 codec->pcm[pcm->device] = NULL;
1666 }
1667
1668
1669 static int snd_ali_pcm(struct snd_ali *codec, int device,
1670 struct ali_pcm_description *desc)
1671 {
1672 struct snd_pcm *pcm;
1673 int err;
1674
1675 err = snd_pcm_new(codec->card, desc->name, device,
1676 desc->playback_num, desc->capture_num, &pcm);
1677 if (err < 0) {
1678 dev_err(codec->card->dev,
1679 "snd_ali_pcm: err called snd_pcm_new.\n");
1680 return err;
1681 }
1682 pcm->private_data = codec;
1683 pcm->private_free = snd_ali_pcm_free;
1684 if (desc->playback_ops)
1685 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1686 desc->playback_ops);
1687 if (desc->capture_ops)
1688 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1689 desc->capture_ops);
1690
1691 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1692 snd_dma_pci_data(codec->pci),
1693 64*1024, 128*1024);
1694
1695 pcm->info_flags = 0;
1696 pcm->dev_class = desc->class;
1697 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1698 strcpy(pcm->name, desc->name);
1699 codec->pcm[0] = pcm;
1700 return 0;
1701 }
1702
1703 static struct ali_pcm_description ali_pcms[] = {
1704 { .name = "ALI 5451",
1705 .playback_num = ALI_CHANNELS,
1706 .capture_num = 1,
1707 .playback_ops = &snd_ali_playback_ops,
1708 .capture_ops = &snd_ali_capture_ops
1709 },
1710 { .name = "ALI 5451 modem",
1711 .playback_num = 1,
1712 .capture_num = 1,
1713 .playback_ops = &snd_ali_modem_playback_ops,
1714 .capture_ops = &snd_ali_modem_capture_ops,
1715 .class = SNDRV_PCM_CLASS_MODEM
1716 }
1717 };
1718
1719 static int snd_ali_build_pcms(struct snd_ali *codec)
1720 {
1721 int i, err;
1722 for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1723 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1724 if (err < 0)
1725 return err;
1726 }
1727 return 0;
1728 }
1729
1730
1731 #define ALI5451_SPDIF(xname, xindex, value) \
1732 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1733 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1734 .put = snd_ali5451_spdif_put, .private_value = value}
1735
1736 #define snd_ali5451_spdif_info snd_ctl_boolean_mono_info
1737
1738 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1739 struct snd_ctl_elem_value *ucontrol)
1740 {
1741 struct snd_ali *codec = kcontrol->private_data;
1742 unsigned int spdif_enable;
1743
1744 spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1745
1746 spin_lock_irq(&codec->reg_lock);
1747 switch (kcontrol->private_value) {
1748 case 0:
1749 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1750 break;
1751 case 1:
1752 spdif_enable = ((codec->spdif_mask & 0x02) &&
1753 (codec->spdif_mask & 0x04)) ? 1 : 0;
1754 break;
1755 case 2:
1756 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1757 break;
1758 default:
1759 break;
1760 }
1761 ucontrol->value.integer.value[0] = spdif_enable;
1762 spin_unlock_irq(&codec->reg_lock);
1763 return 0;
1764 }
1765
1766 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1767 struct snd_ctl_elem_value *ucontrol)
1768 {
1769 struct snd_ali *codec = kcontrol->private_data;
1770 unsigned int change = 0, spdif_enable = 0;
1771
1772 spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1773
1774 spin_lock_irq(&codec->reg_lock);
1775 switch (kcontrol->private_value) {
1776 case 0:
1777 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1778 change = change ^ spdif_enable;
1779 if (change) {
1780 if (spdif_enable) {
1781 codec->spdif_mask |= 0x02;
1782 snd_ali_enable_spdif_out(codec);
1783 } else {
1784 codec->spdif_mask &= ~(0x02);
1785 codec->spdif_mask &= ~(0x04);
1786 snd_ali_disable_spdif_out(codec);
1787 }
1788 }
1789 break;
1790 case 1:
1791 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1792 change = change ^ spdif_enable;
1793 if (change && (codec->spdif_mask & 0x02)) {
1794 if (spdif_enable) {
1795 codec->spdif_mask |= 0x04;
1796 snd_ali_enable_spdif_chnout(codec);
1797 } else {
1798 codec->spdif_mask &= ~(0x04);
1799 snd_ali_disable_spdif_chnout(codec);
1800 }
1801 }
1802 break;
1803 case 2:
1804 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1805 change = change ^ spdif_enable;
1806 if (change) {
1807 if (spdif_enable) {
1808 codec->spdif_mask |= 0x01;
1809 snd_ali_enable_spdif_in(codec);
1810 } else {
1811 codec->spdif_mask &= ~(0x01);
1812 snd_ali_disable_spdif_in(codec);
1813 }
1814 }
1815 break;
1816 default:
1817 break;
1818 }
1819 spin_unlock_irq(&codec->reg_lock);
1820
1821 return change;
1822 }
1823
1824 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1825 /* spdif aplayback switch */
1826 /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1827 ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1828 /* spdif out to spdif channel */
1829 ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1830 /* spdif in from spdif channel */
1831 ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1832 };
1833
1834 static int snd_ali_mixer(struct snd_ali *codec)
1835 {
1836 struct snd_ac97_template ac97;
1837 unsigned int idx;
1838 int i, err;
1839 static struct snd_ac97_bus_ops ops = {
1840 .write = snd_ali_codec_write,
1841 .read = snd_ali_codec_read,
1842 };
1843
1844 err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1845 if (err < 0)
1846 return err;
1847
1848 memset(&ac97, 0, sizeof(ac97));
1849 ac97.private_data = codec;
1850
1851 for (i = 0; i < codec->num_of_codecs; i++) {
1852 ac97.num = i;
1853 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1854 if (err < 0) {
1855 dev_err(codec->card->dev,
1856 "ali mixer %d creating error.\n", i);
1857 if (i == 0)
1858 return err;
1859 codec->num_of_codecs = 1;
1860 break;
1861 }
1862 }
1863
1864 if (codec->spdif_support) {
1865 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1866 err = snd_ctl_add(codec->card,
1867 snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1868 if (err < 0)
1869 return err;
1870 }
1871 }
1872 return 0;
1873 }
1874
1875 #ifdef CONFIG_PM_SLEEP
1876 static int ali_suspend(struct device *dev)
1877 {
1878 struct snd_card *card = dev_get_drvdata(dev);
1879 struct snd_ali *chip = card->private_data;
1880 struct snd_ali_image *im;
1881 int i, j;
1882
1883 im = chip->image;
1884 if (!im)
1885 return 0;
1886
1887 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1888 for (i = 0; i < chip->num_of_codecs; i++) {
1889 snd_pcm_suspend_all(chip->pcm[i]);
1890 snd_ac97_suspend(chip->ac97[i]);
1891 }
1892
1893 spin_lock_irq(&chip->reg_lock);
1894
1895 im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1896 /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1897 im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1898
1899 /* disable all IRQ bits */
1900 outl(0, ALI_REG(chip, ALI_MISCINT));
1901
1902 for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1903 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1904 continue;
1905 im->regs[i] = inl(ALI_REG(chip, i*4));
1906 }
1907
1908 for (i = 0; i < ALI_CHANNELS; i++) {
1909 outb(i, ALI_REG(chip, ALI_GC_CIR));
1910 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1911 im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1912 }
1913
1914 /* stop all HW channel */
1915 outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1916
1917 spin_unlock_irq(&chip->reg_lock);
1918 return 0;
1919 }
1920
1921 static int ali_resume(struct device *dev)
1922 {
1923 struct snd_card *card = dev_get_drvdata(dev);
1924 struct snd_ali *chip = card->private_data;
1925 struct snd_ali_image *im;
1926 int i, j;
1927
1928 im = chip->image;
1929 if (!im)
1930 return 0;
1931
1932 spin_lock_irq(&chip->reg_lock);
1933
1934 for (i = 0; i < ALI_CHANNELS; i++) {
1935 outb(i, ALI_REG(chip, ALI_GC_CIR));
1936 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1937 outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1938 }
1939
1940 for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1941 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1942 (i*4 == ALI_START))
1943 continue;
1944 outl(im->regs[i], ALI_REG(chip, i*4));
1945 }
1946
1947 /* start HW channel */
1948 outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1949 /* restore IRQ enable bits */
1950 outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1951
1952 spin_unlock_irq(&chip->reg_lock);
1953
1954 for (i = 0 ; i < chip->num_of_codecs; i++)
1955 snd_ac97_resume(chip->ac97[i]);
1956
1957 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1958 return 0;
1959 }
1960
1961 static SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1962 #define ALI_PM_OPS &ali_pm
1963 #else
1964 #define ALI_PM_OPS NULL
1965 #endif /* CONFIG_PM_SLEEP */
1966
1967 static int snd_ali_free(struct snd_ali * codec)
1968 {
1969 if (codec->hw_initialized)
1970 snd_ali_disable_address_interrupt(codec);
1971 if (codec->irq >= 0)
1972 free_irq(codec->irq, codec);
1973 if (codec->port)
1974 pci_release_regions(codec->pci);
1975 pci_disable_device(codec->pci);
1976 #ifdef CONFIG_PM_SLEEP
1977 kfree(codec->image);
1978 #endif
1979 pci_dev_put(codec->pci_m1533);
1980 pci_dev_put(codec->pci_m7101);
1981 kfree(codec);
1982 return 0;
1983 }
1984
1985 static int snd_ali_chip_init(struct snd_ali *codec)
1986 {
1987 unsigned int legacy;
1988 unsigned char temp;
1989 struct pci_dev *pci_dev;
1990
1991 dev_dbg(codec->card->dev, "chip initializing ...\n");
1992
1993 if (snd_ali_reset_5451(codec)) {
1994 dev_err(codec->card->dev, "ali_chip_init: reset 5451 error.\n");
1995 return -1;
1996 }
1997
1998 if (codec->revision == ALI_5451_V02) {
1999 pci_dev = codec->pci_m1533;
2000 pci_read_config_byte(pci_dev, 0x59, &temp);
2001 temp |= 0x80;
2002 pci_write_config_byte(pci_dev, 0x59, temp);
2003
2004 pci_dev = codec->pci_m7101;
2005 pci_read_config_byte(pci_dev, 0xb8, &temp);
2006 temp |= 0x20;
2007 pci_write_config_byte(pci_dev, 0xB8, temp);
2008 }
2009
2010 pci_read_config_dword(codec->pci, 0x44, &legacy);
2011 legacy &= 0xff00ff00;
2012 legacy |= 0x000800aa;
2013 pci_write_config_dword(codec->pci, 0x44, legacy);
2014
2015 outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2016 outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2017 outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2018 outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2019 outb(0x10, ALI_REG(codec, ALI_MPUR2));
2020
2021 codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2022 codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
2023 AC97_EXTENDED_STATUS);
2024 if (codec->spdif_support) {
2025 snd_ali_enable_spdif_out(codec);
2026 codec->spdif_mask = 0x00000002;
2027 }
2028
2029 codec->num_of_codecs = 1;
2030
2031 /* secondary codec - modem */
2032 if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2033 codec->num_of_codecs++;
2034 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2035 (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
2036 ALI_SCTRL_LINE_OUT_EN),
2037 ALI_REG(codec, ALI_SCTRL));
2038 }
2039
2040 dev_dbg(codec->card->dev, "chip initialize succeed.\n");
2041 return 0;
2042
2043 }
2044
2045 /* proc for register dump */
2046 static void snd_ali_proc_read(struct snd_info_entry *entry,
2047 struct snd_info_buffer *buf)
2048 {
2049 struct snd_ali *codec = entry->private_data;
2050 int i;
2051 for (i = 0; i < 256 ; i+= 4)
2052 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2053 }
2054
2055 static void snd_ali_proc_init(struct snd_ali *codec)
2056 {
2057 struct snd_info_entry *entry;
2058 if (!snd_card_proc_new(codec->card, "ali5451", &entry))
2059 snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
2060 }
2061
2062 static int snd_ali_resources(struct snd_ali *codec)
2063 {
2064 int err;
2065
2066 dev_dbg(codec->card->dev, "resources allocation ...\n");
2067 err = pci_request_regions(codec->pci, "ALI 5451");
2068 if (err < 0)
2069 return err;
2070 codec->port = pci_resource_start(codec->pci, 0);
2071
2072 if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2073 IRQF_SHARED, KBUILD_MODNAME, codec)) {
2074 dev_err(codec->card->dev, "Unable to request irq.\n");
2075 return -EBUSY;
2076 }
2077 codec->irq = codec->pci->irq;
2078 dev_dbg(codec->card->dev, "resources allocated.\n");
2079 return 0;
2080 }
2081 static int snd_ali_dev_free(struct snd_device *device)
2082 {
2083 struct snd_ali *codec = device->device_data;
2084 snd_ali_free(codec);
2085 return 0;
2086 }
2087
2088 static int snd_ali_create(struct snd_card *card,
2089 struct pci_dev *pci,
2090 int pcm_streams,
2091 int spdif_support,
2092 struct snd_ali **r_ali)
2093 {
2094 struct snd_ali *codec;
2095 int i, err;
2096 unsigned short cmdw;
2097 static struct snd_device_ops ops = {
2098 .dev_free = snd_ali_dev_free,
2099 };
2100
2101 *r_ali = NULL;
2102
2103 dev_dbg(card->dev, "creating ...\n");
2104
2105 /* enable PCI device */
2106 err = pci_enable_device(pci);
2107 if (err < 0)
2108 return err;
2109 /* check, if we can restrict PCI DMA transfers to 31 bits */
2110 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(31)) < 0 ||
2111 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(31)) < 0) {
2112 dev_err(card->dev,
2113 "architecture does not support 31bit PCI busmaster DMA\n");
2114 pci_disable_device(pci);
2115 return -ENXIO;
2116 }
2117
2118 codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2119 if (!codec) {
2120 pci_disable_device(pci);
2121 return -ENOMEM;
2122 }
2123
2124 spin_lock_init(&codec->reg_lock);
2125 spin_lock_init(&codec->voice_alloc);
2126
2127 codec->card = card;
2128 codec->pci = pci;
2129 codec->irq = -1;
2130 codec->revision = pci->revision;
2131 codec->spdif_support = spdif_support;
2132
2133 if (pcm_streams < 1)
2134 pcm_streams = 1;
2135 if (pcm_streams > 32)
2136 pcm_streams = 32;
2137
2138 pci_set_master(pci);
2139 pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2140 if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2141 cmdw |= PCI_COMMAND_IO;
2142 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2143 }
2144 pci_set_master(pci);
2145
2146 if (snd_ali_resources(codec)) {
2147 snd_ali_free(codec);
2148 return -EBUSY;
2149 }
2150
2151 synchronize_irq(pci->irq);
2152
2153 codec->synth.chmap = 0;
2154 codec->synth.chcnt = 0;
2155 codec->spdif_mask = 0;
2156 codec->synth.synthcount = 0;
2157
2158 if (codec->revision == ALI_5451_V02)
2159 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2160 else
2161 codec->chregs.regs.ac97read = ALI_AC97_READ;
2162 codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2163
2164 codec->chregs.regs.start = ALI_START;
2165 codec->chregs.regs.stop = ALI_STOP;
2166 codec->chregs.regs.aint = ALI_AINT;
2167 codec->chregs.regs.ainten = ALI_AINTEN;
2168
2169 codec->chregs.data.start = 0x00;
2170 codec->chregs.data.stop = 0x00;
2171 codec->chregs.data.aint = 0x00;
2172 codec->chregs.data.ainten = 0x00;
2173
2174 /* M1533: southbridge */
2175 codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2176 if (!codec->pci_m1533) {
2177 dev_err(card->dev, "cannot find ALi 1533 chip.\n");
2178 snd_ali_free(codec);
2179 return -ENODEV;
2180 }
2181 /* M7101: power management */
2182 codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2183 if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2184 dev_err(card->dev, "cannot find ALi 7101 chip.\n");
2185 snd_ali_free(codec);
2186 return -ENODEV;
2187 }
2188
2189 dev_dbg(card->dev, "snd_device_new is called.\n");
2190 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2191 if (err < 0) {
2192 snd_ali_free(codec);
2193 return err;
2194 }
2195
2196 /* initialise synth voices*/
2197 for (i = 0; i < ALI_CHANNELS; i++)
2198 codec->synth.voices[i].number = i;
2199
2200 err = snd_ali_chip_init(codec);
2201 if (err < 0) {
2202 dev_err(card->dev, "ali create: chip init error.\n");
2203 return err;
2204 }
2205
2206 #ifdef CONFIG_PM_SLEEP
2207 codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2208 if (!codec->image)
2209 dev_warn(card->dev, "can't allocate apm buffer\n");
2210 #endif
2211
2212 snd_ali_enable_address_interrupt(codec);
2213 codec->hw_initialized = 1;
2214
2215 *r_ali = codec;
2216 dev_dbg(card->dev, "created.\n");
2217 return 0;
2218 }
2219
2220 static int snd_ali_probe(struct pci_dev *pci,
2221 const struct pci_device_id *pci_id)
2222 {
2223 struct snd_card *card;
2224 struct snd_ali *codec;
2225 int err;
2226
2227 dev_dbg(&pci->dev, "probe ...\n");
2228
2229 err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2230 if (err < 0)
2231 return err;
2232
2233 err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2234 if (err < 0)
2235 goto error;
2236 card->private_data = codec;
2237
2238 dev_dbg(&pci->dev, "mixer building ...\n");
2239 err = snd_ali_mixer(codec);
2240 if (err < 0)
2241 goto error;
2242
2243 dev_dbg(&pci->dev, "pcm building ...\n");
2244 err = snd_ali_build_pcms(codec);
2245 if (err < 0)
2246 goto error;
2247
2248 snd_ali_proc_init(codec);
2249
2250 strcpy(card->driver, "ALI5451");
2251 strcpy(card->shortname, "ALI 5451");
2252
2253 sprintf(card->longname, "%s at 0x%lx, irq %i",
2254 card->shortname, codec->port, codec->irq);
2255
2256 dev_dbg(&pci->dev, "register card.\n");
2257 err = snd_card_register(card);
2258 if (err < 0)
2259 goto error;
2260
2261 pci_set_drvdata(pci, card);
2262 return 0;
2263
2264 error:
2265 snd_card_free(card);
2266 return err;
2267 }
2268
2269 static void snd_ali_remove(struct pci_dev *pci)
2270 {
2271 snd_card_free(pci_get_drvdata(pci));
2272 }
2273
2274 static struct pci_driver ali5451_driver = {
2275 .name = KBUILD_MODNAME,
2276 .id_table = snd_ali_ids,
2277 .probe = snd_ali_probe,
2278 .remove = snd_ali_remove,
2279 .driver = {
2280 .pm = ALI_PM_OPS,
2281 },
2282 };
2283
2284 module_pci_driver(ali5451_driver);
Linux kernel - Deliverables
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