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[ALSA] Remove zero-initialization of static variables
[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 <sound/driver.h>
29 #include <asm/io.h>
30 #include <linux/delay.h>
31 #include <linux/interrupt.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/slab.h>
35 #include <linux/moduleparam.h>
36 #include <linux/dma-mapping.h>
37 #include <sound/core.h>
38 #include <sound/pcm.h>
39 #include <sound/info.h>
40 #include <sound/ac97_codec.h>
41 #include <sound/mpu401.h>
42 #include <sound/initval.h>
43
44 MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
45 MODULE_DESCRIPTION("ALI M5451");
46 MODULE_LICENSE("GPL");
47 MODULE_SUPPORTED_DEVICE("{{ALI,M5451,pci},{ALI,M5451}}");
48
49 static int index = SNDRV_DEFAULT_IDX1; /* Index */
50 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
51 static int pcm_channels = 32;
52 static int spdif;
53
54 module_param(index, int, 0444);
55 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
56 module_param(id, charp, 0444);
57 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
58 module_param(pcm_channels, int, 0444);
59 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
60 module_param(spdif, bool, 0444);
61 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
62
63 /* just for backward compatibility */
64 static int enable;
65 module_param(enable, bool, 0444);
66
67
68 /*
69 * Debug part definitions
70 */
71
72 //#define ALI_DEBUG
73
74 #ifdef ALI_DEBUG
75 #define snd_ali_printk(format, args...) printk(format, ##args);
76 #else
77 #define snd_ali_printk(format, args...)
78 #endif
79
80 /*
81 * Constants definition
82 */
83
84 #define DEVICE_ID_ALI5451 ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
85
86
87 #define ALI_CHANNELS 32
88
89 #define ALI_PCM_IN_CHANNEL 31
90 #define ALI_SPDIF_IN_CHANNEL 19
91 #define ALI_SPDIF_OUT_CHANNEL 15
92 #define ALI_CENTER_CHANNEL 24
93 #define ALI_LEF_CHANNEL 23
94 #define ALI_SURR_LEFT_CHANNEL 26
95 #define ALI_SURR_RIGHT_CHANNEL 25
96 #define ALI_MODEM_IN_CHANNEL 21
97 #define ALI_MODEM_OUT_CHANNEL 20
98
99 #define SNDRV_ALI_VOICE_TYPE_PCM 01
100 #define SNDRV_ALI_VOICE_TYPE_OTH 02
101
102 #define ALI_5451_V02 0x02
103
104 /*
105 * Direct Registers
106 */
107
108 #define ALI_LEGACY_DMAR0 0x00 // ADR0
109 #define ALI_LEGACY_DMAR4 0x04 // CNT0
110 #define ALI_LEGACY_DMAR11 0x0b // MOD
111 #define ALI_LEGACY_DMAR15 0x0f // MMR
112 #define ALI_MPUR0 0x20
113 #define ALI_MPUR1 0x21
114 #define ALI_MPUR2 0x22
115 #define ALI_MPUR3 0x23
116
117 #define ALI_AC97_WRITE 0x40
118 #define ALI_AC97_READ 0x44
119
120 #define ALI_SCTRL 0x48
121 #define ALI_SPDIF_OUT_ENABLE 0x20
122 #define ALI_SCTRL_LINE_IN2 (1 << 9)
123 #define ALI_SCTRL_GPIO_IN2 (1 << 13)
124 #define ALI_SCTRL_LINE_OUT_EN (1 << 20)
125 #define ALI_SCTRL_GPIO_OUT_EN (1 << 23)
126 #define ALI_SCTRL_CODEC1_READY (1 << 24)
127 #define ALI_SCTRL_CODEC2_READY (1 << 25)
128 #define ALI_AC97_GPIO 0x4c
129 #define ALI_AC97_GPIO_ENABLE 0x8000
130 #define ALI_AC97_GPIO_DATA_SHIFT 16
131 #define ALI_SPDIF_CS 0x70
132 #define ALI_SPDIF_CTRL 0x74
133 #define ALI_SPDIF_IN_FUNC_ENABLE 0x02
134 #define ALI_SPDIF_IN_CH_STATUS 0x40
135 #define ALI_SPDIF_OUT_CH_STATUS 0xbf
136 #define ALI_START 0x80
137 #define ALI_STOP 0x84
138 #define ALI_CSPF 0x90
139 #define ALI_AINT 0x98
140 #define ALI_GC_CIR 0xa0
141 #define ENDLP_IE 0x00001000
142 #define MIDLP_IE 0x00002000
143 #define ALI_AINTEN 0xa4
144 #define ALI_VOLUME 0xa8
145 #define ALI_SBDELTA_DELTA_R 0xac
146 #define ALI_MISCINT 0xb0
147 #define ADDRESS_IRQ 0x00000020
148 #define TARGET_REACHED 0x00008000
149 #define MIXER_OVERFLOW 0x00000800
150 #define MIXER_UNDERFLOW 0x00000400
151 #define GPIO_IRQ 0x01000000
152 #define ALI_SBBL_SBCL 0xc0
153 #define ALI_SBCTRL_SBE2R_SBDD 0xc4
154 #define ALI_STIMER 0xc8
155 #define ALI_GLOBAL_CONTROL 0xd4
156 #define ALI_SPDIF_OUT_SEL_PCM 0x00000400 /* bit 10 */
157 #define ALI_SPDIF_IN_SUPPORT 0x00000800 /* bit 11 */
158 #define ALI_SPDIF_OUT_CH_ENABLE 0x00008000 /* bit 15 */
159 #define ALI_SPDIF_IN_CH_ENABLE 0x00080000 /* bit 19 */
160 #define ALI_PCM_IN_ENABLE 0x80000000 /* bit 31 */
161
162 #define ALI_CSO_ALPHA_FMS 0xe0
163 #define ALI_LBA 0xe4
164 #define ALI_ESO_DELTA 0xe8
165 #define ALI_GVSEL_PAN_VOC_CTRL_EC 0xf0
166 #define ALI_EBUF1 0xf4
167 #define ALI_EBUF2 0xf8
168
169 #define ALI_REG(codec, x) ((codec)->port + x)
170
171 #define MAX_CODECS 2
172
173
174 struct snd_ali;
175 struct snd_ali_voice;
176
177 struct snd_ali_channel_control {
178 // register data
179 struct REGDATA {
180 unsigned int start;
181 unsigned int stop;
182 unsigned int aint;
183 unsigned int ainten;
184 } data;
185
186 // register addresses
187 struct REGS {
188 unsigned int start;
189 unsigned int stop;
190 unsigned int aint;
191 unsigned int ainten;
192 unsigned int ac97read;
193 unsigned int ac97write;
194 } regs;
195
196 };
197
198 struct snd_ali_voice {
199 unsigned int number;
200 unsigned int use: 1,
201 pcm: 1,
202 midi: 1,
203 mode: 1,
204 synth: 1;
205
206 /* PCM data */
207 struct snd_ali *codec;
208 struct snd_pcm_substream *substream;
209 struct snd_ali_voice *extra;
210
211 unsigned int running: 1;
212
213 int eso; /* final ESO value for channel */
214 int count; /* runtime->period_size */
215
216 /* --- */
217
218 void *private_data;
219 void (*private_free)(void *private_data);
220 };
221
222
223 struct snd_alidev {
224
225 struct snd_ali_voice voices[ALI_CHANNELS];
226
227 unsigned int chcnt; /* num of opened channels */
228 unsigned int chmap; /* bitmap for opened channels */
229 unsigned int synthcount;
230
231 };
232
233
234 #ifdef CONFIG_PM
235 #define ALI_GLOBAL_REGS 56
236 #define ALI_CHANNEL_REGS 8
237 struct snd_ali_image {
238 unsigned long regs[ALI_GLOBAL_REGS];
239 unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
240 };
241 #endif
242
243
244 struct snd_ali {
245 unsigned long irq;
246 unsigned long port;
247 unsigned char revision;
248
249 unsigned int hw_initialized: 1;
250 unsigned int spdif_support: 1;
251
252 struct pci_dev *pci;
253 struct pci_dev *pci_m1533;
254 struct pci_dev *pci_m7101;
255
256 struct snd_card *card;
257 struct snd_pcm *pcm[MAX_CODECS];
258 struct snd_alidev synth;
259 struct snd_ali_channel_control chregs;
260
261 /* S/PDIF Mask */
262 unsigned int spdif_mask;
263
264 unsigned int spurious_irq_count;
265 unsigned int spurious_irq_max_delta;
266
267 unsigned int num_of_codecs;
268
269 struct snd_ac97_bus *ac97_bus;
270 struct snd_ac97 *ac97[MAX_CODECS];
271 unsigned short ac97_ext_id;
272 unsigned short ac97_ext_status;
273
274 spinlock_t reg_lock;
275 spinlock_t voice_alloc;
276
277 #ifdef CONFIG_PM
278 struct snd_ali_image *image;
279 #endif
280 };
281
282 static struct pci_device_id snd_ali_ids[] __devinitdata = {
283 {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
284 {0, }
285 };
286 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
287
288 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
289 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
290 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short, unsigned short);
291
292 /*
293 * Debug Part
294 */
295
296 #ifdef ALI_DEBUG
297
298 static void ali_read_regs(struct snd_ali *codec, int channel)
299 {
300 int i,j;
301 unsigned int dwVal;
302
303 printk("channel %d registers map:\n", channel);
304 outb((unsigned char)(channel & 0x001f), ALI_REG(codec,ALI_GC_CIR));
305
306 printk(" ");
307 for(j=0;j<8;j++)
308 printk("%2.2x ", j*4);
309 printk("\n");
310
311 for (i=0; i<=0xf8/4;i++) {
312 if(i%8 == 0)
313 printk("%2.2x ", (i*4/0x10)*0x10);
314 dwVal = inl(ALI_REG(codec,i*4));
315 printk("%8.8x ", dwVal);
316 if ((i+1)%8 == 0)
317 printk("\n");
318 }
319 printk("\n");
320 }
321 static void ali_read_cfg(unsigned int vendor, unsigned deviceid)
322 {
323 unsigned int dwVal;
324 struct pci_dev *pci_dev;
325 int i,j;
326
327 pci_dev = pci_get_device(vendor, deviceid, NULL);
328 if (pci_dev == NULL)
329 return ;
330
331 printk("\nM%x PCI CFG\n", deviceid);
332 printk(" ");
333 for(j=0;j<8;j++)
334 printk("%d ",j);
335 printk("\n");
336
337 for(i=0;i<8;i++) {
338 printk("%d ",i);
339 for(j=0;j<8;j++)
340 {
341 pci_read_config_dword(pci_dev, i*0x20+j*4, &dwVal);
342 printk("%8.8x ", dwVal);
343 }
344 printk("\n");
345 }
346 pci_dev_put(pci_dev);
347 }
348 static void ali_read_ac97regs(struct snd_ali *codec, int secondary)
349 {
350 unsigned short i,j;
351 unsigned short wVal;
352
353 printk("\ncodec %d registers map:\n", secondary);
354
355 printk(" ");
356 for(j=0;j<8;j++)
357 printk("%2.2x ",j*2);
358 printk("\n");
359
360 for (i=0; i<64;i++) {
361 if(i%8 == 0)
362 printk("%2.2x ", (i/8)*0x10);
363 wVal = snd_ali_codec_peek(codec, secondary, i*2);
364 printk("%4.4x ", wVal);
365 if ((i+1)%8 == 0)
366 printk("\n");
367 }
368 printk("\n");
369 }
370
371 #endif
372
373 /*
374 * AC97 ACCESS
375 */
376
377 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
378 unsigned int port )
379 {
380 return (unsigned int)inl(ALI_REG(codec, port));
381 }
382
383 static inline void snd_ali_5451_poke( struct snd_ali *codec,
384 unsigned int port,
385 unsigned int val )
386 {
387 outl((unsigned int)val, ALI_REG(codec, port));
388 }
389
390 static int snd_ali_codec_ready( struct snd_ali *codec,
391 unsigned int port )
392 {
393 unsigned long end_time;
394 unsigned int res;
395
396 end_time = jiffies + msecs_to_jiffies(250);
397 do {
398 res = snd_ali_5451_peek(codec,port);
399 if (! (res & 0x8000))
400 return 0;
401 schedule_timeout_uninterruptible(1);
402 } while (time_after_eq(end_time, jiffies));
403 snd_ali_5451_poke(codec, port, res & ~0x8000);
404 snd_printdd("ali_codec_ready: codec is not ready.\n ");
405 return -EIO;
406 }
407
408 static int snd_ali_stimer_ready(struct snd_ali *codec)
409 {
410 unsigned long end_time;
411 unsigned long dwChk1,dwChk2;
412
413 dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
414 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
415
416 end_time = jiffies + msecs_to_jiffies(250);
417 do {
418 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
419 if (dwChk2 != dwChk1)
420 return 0;
421 schedule_timeout_uninterruptible(1);
422 } while (time_after_eq(end_time, jiffies));
423 snd_printk(KERN_ERR "ali_stimer_read: stimer is not ready.\n");
424 return -EIO;
425 }
426
427 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
428 unsigned short reg,
429 unsigned short val)
430 {
431 unsigned int dwVal = 0;
432 unsigned int port = 0;
433
434 if (reg >= 0x80) {
435 snd_printk(KERN_ERR "ali_codec_poke: reg(%xh) invalid.\n", reg);
436 return;
437 }
438
439 port = codec->chregs.regs.ac97write;
440
441 if (snd_ali_codec_ready(codec, port) < 0)
442 return;
443 if (snd_ali_stimer_ready(codec) < 0)
444 return;
445
446 dwVal = (unsigned int) (reg & 0xff);
447 dwVal |= 0x8000 | (val << 16);
448 if (secondary) dwVal |= 0x0080;
449 if (codec->revision == ALI_5451_V02) dwVal |= 0x0100;
450
451 snd_ali_5451_poke(codec,port,dwVal);
452
453 return ;
454 }
455
456 static unsigned short snd_ali_codec_peek( struct snd_ali *codec,
457 int secondary,
458 unsigned short reg)
459 {
460 unsigned int dwVal = 0;
461 unsigned int port = 0;
462
463 if (reg >= 0x80) {
464 snd_printk(KERN_ERR "ali_codec_peek: reg(%xh) invalid.\n", reg);
465 return ~0;
466 }
467
468 port = codec->chregs.regs.ac97read;
469
470 if (snd_ali_codec_ready(codec, port) < 0)
471 return ~0;
472 if (snd_ali_stimer_ready(codec) < 0)
473 return ~0;
474
475 dwVal = (unsigned int) (reg & 0xff);
476 dwVal |= 0x8000; /* bit 15*/
477 if (secondary) dwVal |= 0x0080;
478
479 snd_ali_5451_poke(codec, port, dwVal);
480
481 if (snd_ali_stimer_ready(codec) < 0)
482 return ~0;
483 if (snd_ali_codec_ready(codec, port) < 0)
484 return ~0;
485
486 return (snd_ali_5451_peek(codec, port) & 0xffff0000)>>16;
487 }
488
489 static void snd_ali_codec_write(struct snd_ac97 *ac97,
490 unsigned short reg,
491 unsigned short val )
492 {
493 struct snd_ali *codec = ac97->private_data;
494
495 snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
496 if(reg == AC97_GPIO_STATUS) {
497 outl((val << ALI_AC97_GPIO_DATA_SHIFT)|ALI_AC97_GPIO_ENABLE,
498 ALI_REG(codec, ALI_AC97_GPIO));
499 return;
500 }
501 snd_ali_codec_poke(codec, ac97->num, reg, val);
502 return ;
503 }
504
505
506 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
507 {
508 struct snd_ali *codec = ac97->private_data;
509
510 snd_ali_printk("codec_read reg=%xh.\n", reg);
511 return (snd_ali_codec_peek(codec, ac97->num, reg));
512 }
513
514 /*
515 * AC97 Reset
516 */
517
518 static int snd_ali_reset_5451(struct snd_ali *codec)
519 {
520 struct pci_dev *pci_dev = NULL;
521 unsigned short wCount, wReg;
522 unsigned int dwVal;
523
524 if ((pci_dev = codec->pci_m1533) != NULL) {
525 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
526 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
527 udelay(5000);
528 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
529 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
530 udelay(5000);
531 }
532
533 pci_dev = codec->pci;
534 pci_read_config_dword(pci_dev, 0x44, &dwVal);
535 pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
536 udelay(500);
537 pci_read_config_dword(pci_dev, 0x44, &dwVal);
538 pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
539 udelay(5000);
540
541 wCount = 200;
542 while(wCount--) {
543 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
544 if((wReg & 0x000f) == 0x000f)
545 return 0;
546 udelay(5000);
547 }
548
549 /* non-fatal if you have a non PM capable codec */
550 /* snd_printk(KERN_WARNING "ali5451: reset time out\n"); */
551 return 0;
552 }
553
554 #ifdef CODEC_RESET
555
556 static int snd_ali_reset_codec(struct snd_ali *codec)
557 {
558 struct pci_dev *pci_dev = NULL;
559 unsigned char bVal = 0;
560 unsigned int dwVal;
561 unsigned short wCount, wReg;
562
563 pci_dev = codec->pci_m1533;
564
565 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
566 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
567 udelay(5000);
568 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
569 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
570 udelay(5000);
571
572 bVal = inb(ALI_REG(codec,ALI_SCTRL));
573 bVal |= 0x02;
574 outb(ALI_REG(codec,ALI_SCTRL),bVal);
575 udelay(5000);
576 bVal = inb(ALI_REG(codec,ALI_SCTRL));
577 bVal &= 0xfd;
578 outb(ALI_REG(codec,ALI_SCTRL),bVal);
579 udelay(15000);
580
581 wCount = 200;
582 while(wCount--) {
583 wReg = snd_ali_codec_read(codec->ac97, AC97_POWERDOWN);
584 if((wReg & 0x000f) == 0x000f)
585 return 0;
586 udelay(5000);
587 }
588 return -1;
589 }
590
591 #endif
592
593 /*
594 * ALI 5451 Controller
595 */
596
597 static void snd_ali_enable_special_channel(struct snd_ali *codec, unsigned int channel)
598 {
599 unsigned long dwVal = 0;
600
601 dwVal = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
602 dwVal |= 1 << (channel & 0x0000001f);
603 outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
604 }
605
606 static void snd_ali_disable_special_channel(struct snd_ali *codec, unsigned int channel)
607 {
608 unsigned long dwVal = 0;
609
610 dwVal = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
611 dwVal &= ~(1 << (channel & 0x0000001f));
612 outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
613 }
614
615 static void snd_ali_enable_address_interrupt(struct snd_ali * codec)
616 {
617 unsigned int gc;
618
619 gc = inl(ALI_REG(codec, ALI_GC_CIR));
620 gc |= ENDLP_IE;
621 gc |= MIDLP_IE;
622 outl( gc, ALI_REG(codec, ALI_GC_CIR));
623 }
624
625 static void snd_ali_disable_address_interrupt(struct snd_ali * codec)
626 {
627 unsigned int gc;
628
629 gc = inl(ALI_REG(codec, ALI_GC_CIR));
630 gc &= ~ENDLP_IE;
631 gc &= ~MIDLP_IE;
632 outl(gc, ALI_REG(codec, ALI_GC_CIR));
633 }
634
635 #if 0 // not used
636 static void snd_ali_enable_voice_irq(struct snd_ali *codec, unsigned int channel)
637 {
638 unsigned int mask;
639 struct snd_ali_channel_control *pchregs = &(codec->chregs);
640
641 snd_ali_printk("enable_voice_irq channel=%d\n",channel);
642
643 mask = 1 << (channel & 0x1f);
644 pchregs->data.ainten = inl(ALI_REG(codec,pchregs->regs.ainten));
645 pchregs->data.ainten |= mask;
646 outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
647 }
648 #endif
649
650 static void snd_ali_disable_voice_irq(struct snd_ali *codec, unsigned int channel)
651 {
652 unsigned int mask;
653 struct snd_ali_channel_control *pchregs = &(codec->chregs);
654
655 snd_ali_printk("disable_voice_irq channel=%d\n",channel);
656
657 mask = 1 << (channel & 0x1f);
658 pchregs->data.ainten = inl(ALI_REG(codec,pchregs->regs.ainten));
659 pchregs->data.ainten &= ~mask;
660 outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
661 }
662
663 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
664 {
665 unsigned int idx = channel & 0x1f;
666
667 if (codec->synth.chcnt >= ALI_CHANNELS){
668 snd_printk(KERN_ERR "ali_alloc_pcm_channel: no free channels.\n");
669 return -1;
670 }
671
672 if (!(codec->synth.chmap & (1 << idx))) {
673 codec->synth.chmap |= 1 << idx;
674 codec->synth.chcnt++;
675 snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
676 return idx;
677 }
678 return -1;
679 }
680
681 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
682 {
683 int idx;
684 int result = -1;
685
686 snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
687
688 // recording
689 if (rec) {
690 if (codec->spdif_support &&
691 (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT))
692 idx = ALI_SPDIF_IN_CHANNEL;
693 else
694 idx = ALI_PCM_IN_CHANNEL;
695
696 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
697 return result;
698 } else {
699 snd_printk(KERN_ERR "ali_find_free_channel: record channel is busy now.\n");
700 return -1;
701 }
702 }
703
704 //playback...
705 if (codec->spdif_support &&
706 (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)) {
707 idx = ALI_SPDIF_OUT_CHANNEL;
708 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
709 return result;
710 } else {
711 snd_printk(KERN_ERR "ali_find_free_channel: S/PDIF out channel is in busy now.\n");
712 }
713 }
714
715 for (idx = 0; idx < ALI_CHANNELS; idx++) {
716 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0)
717 return result;
718 }
719 snd_printk(KERN_ERR "ali_find_free_channel: no free channels.\n");
720 return -1;
721 }
722
723 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
724 {
725 unsigned int idx = channel & 0x0000001f;
726
727 snd_ali_printk("free_channel_pcm channel=%d\n",channel);
728
729 if (channel < 0 || channel >= ALI_CHANNELS)
730 return;
731
732 if (!(codec->synth.chmap & (1 << idx))) {
733 snd_printk(KERN_ERR "ali_free_channel_pcm: channel %d is not in use.\n",channel);
734 return;
735 } else {
736 codec->synth.chmap &= ~(1 << idx);
737 codec->synth.chcnt--;
738 }
739 }
740
741 #if 0 // not used
742 static void snd_ali_start_voice(struct snd_ali * codec, unsigned int channel)
743 {
744 unsigned int mask = 1 << (channel & 0x1f);
745
746 snd_ali_printk("start_voice: channel=%d\n",channel);
747 outl(mask, ALI_REG(codec,codec->chregs.regs.start));
748 }
749 #endif
750
751 static void snd_ali_stop_voice(struct snd_ali * codec, unsigned int channel)
752 {
753 unsigned int mask = 1 << (channel & 0x1f);
754
755 snd_ali_printk("stop_voice: channel=%d\n",channel);
756 outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
757 }
758
759 /*
760 * S/PDIF Part
761 */
762
763 static void snd_ali_delay(struct snd_ali *codec,int interval)
764 {
765 unsigned long begintimer,currenttimer;
766
767 begintimer = inl(ALI_REG(codec, ALI_STIMER));
768 currenttimer = inl(ALI_REG(codec, ALI_STIMER));
769
770 while (currenttimer < begintimer + interval) {
771 if(snd_ali_stimer_ready(codec) < 0)
772 break;
773 currenttimer = inl(ALI_REG(codec, ALI_STIMER));
774 }
775 }
776
777 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
778 {
779 u16 wval = 0;
780 u16 count = 0;
781 u8 bval = 0, R1 = 0, R2 = 0;
782
783 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
784 bval |= 0x1F;
785 outb(bval,ALI_REG(codec,ALI_SPDIF_CTRL + 1));
786
787 while (((R1 < 0x0B )||(R1 > 0x0E)) && (R1 != 0x12) && count <= 50000) {
788 count ++;
789 snd_ali_delay(codec, 6);
790 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
791 R1 = bval & 0x1F;
792 }
793
794 if (count > 50000) {
795 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
796 return;
797 }
798
799 count = 0;
800 while (count++ <= 50000) {
801 snd_ali_delay(codec, 6);
802 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
803 R2 = bval & 0x1F;
804 if (R2 != R1) R1 = R2; else break;
805 }
806
807 if (count > 50000) {
808 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
809 return;
810 }
811
812 if (R2 >= 0x0b && R2 <= 0x0e) {
813 wval = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
814 wval &= 0xE0F0;
815 wval |= (u16)0x09 << 8 | (u16)0x05;
816 outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
817
818 bval = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
819 outb(bval|0x02,ALI_REG(codec,ALI_SPDIF_CS + 3));
820 } else if (R2 == 0x12) {
821 wval = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
822 wval &= 0xE0F0;
823 wval |= (u16)0x0E << 8 | (u16)0x08;
824 outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
825
826 bval = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
827 outb(bval|0x03,ALI_REG(codec,ALI_SPDIF_CS + 3));
828 }
829 }
830
831 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
832 {
833 u32 dwRate = 0;
834 u8 bval = 0;
835
836 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
837 bval &= 0x7F;
838 bval |= 0x40;
839 outb(bval, ALI_REG(codec,ALI_SPDIF_CTRL));
840
841 snd_ali_detect_spdif_rate(codec);
842
843 bval = inb(ALI_REG(codec,ALI_SPDIF_CS + 3));
844 bval &= 0x0F;
845
846 if (bval == 0) dwRate = 44100;
847 if (bval == 1) dwRate = 48000;
848 if (bval == 2) dwRate = 32000;
849
850 return dwRate;
851 }
852
853 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
854 {
855 unsigned int dwVal;
856
857 dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
858 dwVal |= ALI_SPDIF_IN_SUPPORT;
859 outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
860
861 dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
862 dwVal |= 0x02;
863 outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
864
865 snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
866 }
867
868 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
869 {
870 unsigned int dwVal;
871
872 dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
873 dwVal &= ~ALI_SPDIF_IN_SUPPORT;
874 outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
875
876 snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
877 }
878
879
880 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
881 {
882 unsigned char bVal;
883 unsigned int dwRate = 0;
884
885 if (rate == 32000) dwRate = 0x300;
886 if (rate == 44100) dwRate = 0;
887 if (rate == 48000) dwRate = 0x200;
888
889 bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
890 bVal &= (unsigned char)(~(1<<6));
891
892 bVal |= 0x80; //select right
893 outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
894 outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
895
896 bVal &= (~0x80); //select left
897 outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
898 outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
899 }
900
901 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
902 {
903 unsigned short wVal;
904 unsigned char bVal;
905
906 struct pci_dev *pci_dev = NULL;
907
908 pci_dev = codec->pci_m1533;
909 if (pci_dev == NULL)
910 return;
911 pci_read_config_byte(pci_dev, 0x61, &bVal);
912 bVal |= 0x40;
913 pci_write_config_byte(pci_dev, 0x61, bVal);
914 pci_read_config_byte(pci_dev, 0x7d, &bVal);
915 bVal |= 0x01;
916 pci_write_config_byte(pci_dev, 0x7d, bVal);
917
918 pci_read_config_byte(pci_dev, 0x7e, &bVal);
919 bVal &= (~0x20);
920 bVal |= 0x10;
921 pci_write_config_byte(pci_dev, 0x7e, bVal);
922
923 bVal = inb(ALI_REG(codec, ALI_SCTRL));
924 outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
925
926 bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
927 outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
928
929 {
930 wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
931 wVal |= ALI_SPDIF_OUT_SEL_PCM;
932 outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
933 snd_ali_disable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
934 }
935 }
936
937 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
938 {
939 unsigned short wVal = 0;
940
941 wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
942 wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
943 outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
944 /*
945 wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
946 if (flag & ALI_SPDIF_OUT_NON_PCM)
947 wVal |= 0x0002;
948 else
949 wVal &= (~0x0002);
950 outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
951 */
952 snd_ali_enable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
953 }
954
955 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
956 {
957 unsigned short wVal = 0;
958 wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
959 wVal |= ALI_SPDIF_OUT_SEL_PCM;
960 outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
961
962 snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
963 }
964
965 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
966 {
967 unsigned char bVal;
968
969 bVal = inb(ALI_REG(codec, ALI_SCTRL));
970 outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
971
972 snd_ali_disable_spdif_chnout(codec);
973 }
974
975 static void snd_ali_update_ptr(struct snd_ali *codec,int channel)
976 {
977 struct snd_ali_voice *pvoice = NULL;
978 struct snd_pcm_runtime *runtime;
979 struct snd_ali_channel_control *pchregs = NULL;
980 unsigned int old, mask;
981 #ifdef ALI_DEBUG
982 unsigned int temp, cspf;
983 #endif
984
985 pchregs = &(codec->chregs);
986
987 // check if interrupt occurred for channel
988 old = pchregs->data.aint;
989 mask = ((unsigned int) 1L) << (channel & 0x1f);
990
991 if (!(old & mask))
992 return;
993
994 pvoice = &codec->synth.voices[channel];
995 runtime = pvoice->substream->runtime;
996
997 udelay(100);
998 spin_lock(&codec->reg_lock);
999
1000 if (pvoice->pcm && pvoice->substream) {
1001 /* pcm interrupt */
1002 #ifdef ALI_DEBUG
1003 outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
1004 temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1005 cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
1006 #endif
1007 if (pvoice->running) {
1008 snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",(u16)temp,cspf);
1009 spin_unlock(&codec->reg_lock);
1010 snd_pcm_period_elapsed(pvoice->substream);
1011 spin_lock(&codec->reg_lock);
1012 } else {
1013 snd_ali_stop_voice(codec, channel);
1014 snd_ali_disable_voice_irq(codec, channel);
1015 }
1016 } else if (codec->synth.voices[channel].synth) {
1017 /* synth interrupt */
1018 } else if (codec->synth.voices[channel].midi) {
1019 /* midi interrupt */
1020 } else {
1021 /* unknown interrupt */
1022 snd_ali_stop_voice(codec, channel);
1023 snd_ali_disable_voice_irq(codec, channel);
1024 }
1025 spin_unlock(&codec->reg_lock);
1026 outl(mask,ALI_REG(codec,pchregs->regs.aint));
1027 pchregs->data.aint = old & (~mask);
1028 }
1029
1030 static void snd_ali_interrupt(struct snd_ali * codec)
1031 {
1032 int channel;
1033 unsigned int audio_int;
1034 struct snd_ali_channel_control *pchregs = NULL;
1035 pchregs = &(codec->chregs);
1036
1037 audio_int = inl(ALI_REG(codec, ALI_MISCINT));
1038 if (audio_int & ADDRESS_IRQ) {
1039 // get interrupt status for all channels
1040 pchregs->data.aint = inl(ALI_REG(codec,pchregs->regs.aint));
1041 for (channel = 0; channel < ALI_CHANNELS; channel++) {
1042 snd_ali_update_ptr(codec, channel);
1043 }
1044 }
1045 outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
1046 ALI_REG(codec,ALI_MISCINT));
1047 }
1048
1049
1050 static irqreturn_t snd_ali_card_interrupt(int irq,
1051 void *dev_id,
1052 struct pt_regs *regs)
1053 {
1054 struct snd_ali *codec = dev_id;
1055
1056 if (codec == NULL)
1057 return IRQ_NONE;
1058 snd_ali_interrupt(codec);
1059 return IRQ_HANDLED;
1060 }
1061
1062
1063 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec, int type, int rec, int channel)
1064 {
1065 struct snd_ali_voice *pvoice = NULL;
1066 int idx;
1067
1068 snd_ali_printk("alloc_voice: type=%d rec=%d\n",type,rec);
1069
1070 spin_lock_irq(&codec->voice_alloc);
1071 if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
1072 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
1073 snd_ali_find_free_channel(codec,rec);
1074 if(idx < 0) {
1075 snd_printk(KERN_ERR "ali_alloc_voice: err.\n");
1076 spin_unlock_irq(&codec->voice_alloc);
1077 return NULL;
1078 }
1079 pvoice = &(codec->synth.voices[idx]);
1080 pvoice->codec = codec;
1081 pvoice->use = 1;
1082 pvoice->pcm = 1;
1083 pvoice->mode = rec;
1084 spin_unlock_irq(&codec->voice_alloc);
1085 return pvoice;
1086 }
1087 spin_unlock_irq(&codec->voice_alloc);
1088 return NULL;
1089 }
1090
1091
1092 static void snd_ali_free_voice(struct snd_ali * codec, struct snd_ali_voice *pvoice)
1093 {
1094 void (*private_free)(void *);
1095 void *private_data;
1096
1097 snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
1098 if (pvoice == NULL || !pvoice->use)
1099 return;
1100 snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
1101 spin_lock_irq(&codec->voice_alloc);
1102 private_free = pvoice->private_free;
1103 private_data = pvoice->private_data;
1104 pvoice->private_free = NULL;
1105 pvoice->private_data = NULL;
1106 if (pvoice->pcm) {
1107 snd_ali_free_channel_pcm(codec, pvoice->number);
1108 }
1109 pvoice->use = pvoice->pcm = pvoice->synth = 0;
1110 pvoice->substream = NULL;
1111 spin_unlock_irq(&codec->voice_alloc);
1112 if (private_free)
1113 private_free(private_data);
1114 }
1115
1116
1117 static void snd_ali_clear_voices(struct snd_ali * codec,
1118 unsigned int v_min,
1119 unsigned int v_max)
1120 {
1121 unsigned int i;
1122
1123 for (i = v_min; i <= v_max; i++) {
1124 snd_ali_stop_voice(codec, i);
1125 snd_ali_disable_voice_irq(codec, i);
1126 }
1127 }
1128
1129 static void snd_ali_write_voice_regs(struct snd_ali * codec,
1130 unsigned int Channel,
1131 unsigned int LBA,
1132 unsigned int CSO,
1133 unsigned int ESO,
1134 unsigned int DELTA,
1135 unsigned int ALPHA_FMS,
1136 unsigned int GVSEL,
1137 unsigned int PAN,
1138 unsigned int VOL,
1139 unsigned int CTRL,
1140 unsigned int EC)
1141 {
1142 unsigned int ctlcmds[4];
1143
1144 outb((unsigned char)(Channel & 0x001f),ALI_REG(codec,ALI_GC_CIR));
1145
1146 ctlcmds[0] = (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1147 ctlcmds[1] = LBA;
1148 ctlcmds[2] = (ESO << 16) | (DELTA & 0x0ffff);
1149 ctlcmds[3] = (GVSEL << 31) |
1150 ((PAN & 0x0000007f) << 24) |
1151 ((VOL & 0x000000ff) << 16) |
1152 ((CTRL & 0x0000000f) << 12) |
1153 (EC & 0x00000fff);
1154
1155 outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1156
1157 outl(ctlcmds[0], ALI_REG(codec,ALI_CSO_ALPHA_FMS));
1158 outl(ctlcmds[1], ALI_REG(codec,ALI_LBA));
1159 outl(ctlcmds[2], ALI_REG(codec,ALI_ESO_DELTA));
1160 outl(ctlcmds[3], ALI_REG(codec,ALI_GVSEL_PAN_VOC_CTRL_EC));
1161
1162 outl(0x30000000, ALI_REG(codec, ALI_EBUF1)); /* Still Mode */
1163 outl(0x30000000, ALI_REG(codec, ALI_EBUF2)); /* Still Mode */
1164 }
1165
1166 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1167 {
1168 unsigned int delta;
1169
1170 if (rate < 4000) rate = 4000;
1171 if (rate > 48000) rate = 48000;
1172
1173 if (rec) {
1174 if (rate == 44100)
1175 delta = 0x116a;
1176 else if (rate == 8000)
1177 delta = 0x6000;
1178 else if (rate == 48000)
1179 delta = 0x1000;
1180 else
1181 delta = ((48000 << 12) / rate) & 0x0000ffff;
1182 } else {
1183 if (rate == 44100)
1184 delta = 0xeb3;
1185 else if (rate == 8000)
1186 delta = 0x2ab;
1187 else if (rate == 48000)
1188 delta = 0x1000;
1189 else
1190 delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1191 }
1192
1193 return delta;
1194 }
1195
1196 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1197 {
1198 unsigned int CTRL;
1199 struct snd_pcm_runtime *runtime = substream->runtime;
1200
1201 /* set ctrl mode
1202 CTRL default: 8-bit (unsigned) mono, loop mode enabled
1203 */
1204 CTRL = 0x00000001;
1205 if (snd_pcm_format_width(runtime->format) == 16)
1206 CTRL |= 0x00000008; // 16-bit data
1207 if (!snd_pcm_format_unsigned(runtime->format))
1208 CTRL |= 0x00000002; // signed data
1209 if (runtime->channels > 1)
1210 CTRL |= 0x00000004; // stereo data
1211 return CTRL;
1212 }
1213
1214 /*
1215 * PCM part
1216 */
1217
1218 static int snd_ali_ioctl(struct snd_pcm_substream *substream,
1219 unsigned int cmd, void *arg)
1220 {
1221 return snd_pcm_lib_ioctl(substream, cmd, arg);
1222 }
1223
1224 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1225 int cmd)
1226
1227 {
1228 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1229 struct list_head *pos;
1230 struct snd_pcm_substream *s;
1231 unsigned int what, whati, capture_flag;
1232 struct snd_ali_voice *pvoice = NULL, *evoice = NULL;
1233 unsigned int val;
1234 int do_start;
1235
1236 switch (cmd) {
1237 case SNDRV_PCM_TRIGGER_START:
1238 case SNDRV_PCM_TRIGGER_RESUME:
1239 do_start = 1; break;
1240 case SNDRV_PCM_TRIGGER_STOP:
1241 case SNDRV_PCM_TRIGGER_SUSPEND:
1242 do_start = 0; break;
1243 default:
1244 return -EINVAL;
1245 }
1246
1247 what = whati = capture_flag = 0;
1248 snd_pcm_group_for_each(pos, substream) {
1249 s = snd_pcm_group_substream_entry(pos);
1250 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1251 pvoice = s->runtime->private_data;
1252 evoice = pvoice->extra;
1253 what |= 1 << (pvoice->number & 0x1f);
1254 if (evoice == NULL) {
1255 whati |= 1 << (pvoice->number & 0x1f);
1256 } else {
1257 whati |= 1 << (evoice->number & 0x1f);
1258 what |= 1 << (evoice->number & 0x1f);
1259 }
1260 if (do_start) {
1261 pvoice->running = 1;
1262 if (evoice != NULL)
1263 evoice->running = 1;
1264 } else {
1265 pvoice->running = 0;
1266 if (evoice != NULL)
1267 evoice->running = 0;
1268 }
1269 snd_pcm_trigger_done(s, substream);
1270 if (pvoice->mode)
1271 capture_flag = 1;
1272 }
1273 }
1274 spin_lock(&codec->reg_lock);
1275 if (! do_start) {
1276 outl(what, ALI_REG(codec, ALI_STOP));
1277 }
1278 val = inl(ALI_REG(codec, ALI_AINTEN));
1279 if (do_start) {
1280 val |= whati;
1281 } else {
1282 val &= ~whati;
1283 }
1284 outl(val, ALI_REG(codec, ALI_AINTEN));
1285 if (do_start) {
1286 outl(what, ALI_REG(codec, ALI_START));
1287 }
1288 snd_ali_printk("trigger: what=%xh whati=%xh\n",what,whati);
1289 spin_unlock(&codec->reg_lock);
1290
1291 return 0;
1292 }
1293
1294 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1295 struct snd_pcm_hw_params *hw_params)
1296 {
1297 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1298 struct snd_pcm_runtime *runtime = substream->runtime;
1299 struct snd_ali_voice *pvoice = runtime->private_data;
1300 struct snd_ali_voice *evoice = pvoice->extra;
1301 int err;
1302 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1303 if (err < 0) return err;
1304
1305 /* voice management */
1306
1307 if (params_buffer_size(hw_params)/2 != params_period_size(hw_params)) {
1308 if (evoice == NULL) {
1309 evoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0, -1);
1310 if (evoice == NULL)
1311 return -ENOMEM;
1312 pvoice->extra = evoice;
1313 evoice->substream = substream;
1314 }
1315 } else {
1316 if (evoice != NULL) {
1317 snd_ali_free_voice(codec, evoice);
1318 pvoice->extra = evoice = NULL;
1319 }
1320 }
1321
1322 return 0;
1323 }
1324
1325 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1326 {
1327 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1328 struct snd_pcm_runtime *runtime = substream->runtime;
1329 struct snd_ali_voice *pvoice = runtime->private_data;
1330 struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1331
1332 snd_pcm_lib_free_pages(substream);
1333 if (evoice != NULL) {
1334 snd_ali_free_voice(codec, evoice);
1335 pvoice->extra = NULL;
1336 }
1337 return 0;
1338 }
1339
1340 static int snd_ali_hw_params(struct snd_pcm_substream *substream,
1341 struct snd_pcm_hw_params *hw_params)
1342 {
1343 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1344 }
1345
1346 static int snd_ali_hw_free(struct snd_pcm_substream *substream)
1347 {
1348 return snd_pcm_lib_free_pages(substream);
1349 }
1350
1351 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1352 {
1353 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1354 struct snd_pcm_runtime *runtime = substream->runtime;
1355 struct snd_ali_voice *pvoice = runtime->private_data;
1356 struct snd_ali_voice *evoice = pvoice->extra;
1357
1358 unsigned int LBA;
1359 unsigned int Delta;
1360 unsigned int ESO;
1361 unsigned int CTRL;
1362 unsigned int GVSEL;
1363 unsigned int PAN;
1364 unsigned int VOL;
1365 unsigned int EC;
1366
1367 snd_ali_printk("playback_prepare ...\n");
1368
1369 spin_lock_irq(&codec->reg_lock);
1370
1371 /* set Delta (rate) value */
1372 Delta = snd_ali_convert_rate(runtime->rate, 0);
1373
1374 if ((pvoice->number == ALI_SPDIF_IN_CHANNEL) ||
1375 (pvoice->number == ALI_PCM_IN_CHANNEL))
1376 snd_ali_disable_special_channel(codec, pvoice->number);
1377 else if (codec->spdif_support &&
1378 (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)
1379 && (pvoice->number == ALI_SPDIF_OUT_CHANNEL)) {
1380 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1381 Delta = 0x1000;
1382 }
1383
1384 /* set Loop Back Address */
1385 LBA = runtime->dma_addr;
1386
1387 /* set interrupt count size */
1388 pvoice->count = runtime->period_size;
1389
1390 /* set target ESO for channel */
1391 pvoice->eso = runtime->buffer_size;
1392
1393 snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",pvoice->eso,pvoice->count);
1394
1395 /* set ESO to capture first MIDLP interrupt */
1396 ESO = pvoice->eso -1;
1397 /* set ctrl mode */
1398 CTRL = snd_ali_control_mode(substream);
1399
1400 GVSEL = 1;
1401 PAN = 0;
1402 VOL = 0;
1403 EC = 0;
1404 snd_ali_printk("playback_prepare:\n ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1405 snd_ali_write_voice_regs( codec,
1406 pvoice->number,
1407 LBA,
1408 0, /* cso */
1409 ESO,
1410 Delta,
1411 0, /* alpha */
1412 GVSEL,
1413 PAN,
1414 VOL,
1415 CTRL,
1416 EC);
1417 if (evoice != NULL) {
1418 evoice->count = pvoice->count;
1419 evoice->eso = pvoice->count << 1;
1420 ESO = evoice->eso - 1;
1421 snd_ali_write_voice_regs(codec,
1422 evoice->number,
1423 LBA,
1424 0, /* cso */
1425 ESO,
1426 Delta,
1427 0, /* alpha */
1428 GVSEL,
1429 (unsigned int)0x7f,
1430 (unsigned int)0x3ff,
1431 CTRL,
1432 EC);
1433 }
1434 spin_unlock_irq(&codec->reg_lock);
1435 return 0;
1436 }
1437
1438
1439 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1440 {
1441 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1442 struct snd_pcm_runtime *runtime = substream->runtime;
1443 struct snd_ali_voice *pvoice = runtime->private_data;
1444 unsigned int LBA;
1445 unsigned int Delta;
1446 unsigned int ESO;
1447 unsigned int CTRL;
1448 unsigned int GVSEL;
1449 unsigned int PAN;
1450 unsigned int VOL;
1451 unsigned int EC;
1452 u8 bValue;
1453
1454 spin_lock_irq(&codec->reg_lock);
1455
1456 snd_ali_printk("ali_prepare...\n");
1457
1458 snd_ali_enable_special_channel(codec,pvoice->number);
1459
1460 Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1461 pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1462 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1463
1464 // Prepare capture intr channel
1465 if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1466
1467 unsigned int rate;
1468
1469 spin_unlock_irq(&codec->reg_lock);
1470 if (codec->revision != ALI_5451_V02)
1471 return -1;
1472
1473 rate = snd_ali_get_spdif_in_rate(codec);
1474 if (rate == 0) {
1475 snd_printk(KERN_WARNING "ali_capture_preapre: spdif rate detect err!\n");
1476 rate = 48000;
1477 }
1478 spin_lock_irq(&codec->reg_lock);
1479 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1480 if (bValue & 0x10) {
1481 outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1482 printk(KERN_WARNING "clear SPDIF parity error flag.\n");
1483 }
1484
1485 if (rate != 48000)
1486 Delta = ((rate << 12)/runtime->rate)&0x00ffff;
1487 }
1488
1489 // set target ESO for channel
1490 pvoice->eso = runtime->buffer_size;
1491
1492 // set interrupt count size
1493 pvoice->count = runtime->period_size;
1494
1495 // set Loop Back Address
1496 LBA = runtime->dma_addr;
1497
1498 // set ESO to capture first MIDLP interrupt
1499 ESO = pvoice->eso - 1;
1500 CTRL = snd_ali_control_mode(substream);
1501 GVSEL = 0;
1502 PAN = 0x00;
1503 VOL = 0x00;
1504 EC = 0;
1505
1506 snd_ali_write_voice_regs( codec,
1507 pvoice->number,
1508 LBA,
1509 0, /* cso */
1510 ESO,
1511 Delta,
1512 0, /* alpha */
1513 GVSEL,
1514 PAN,
1515 VOL,
1516 CTRL,
1517 EC);
1518
1519
1520 spin_unlock_irq(&codec->reg_lock);
1521
1522 return 0;
1523 }
1524
1525
1526 static snd_pcm_uframes_t snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1527 {
1528 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1529 struct snd_pcm_runtime *runtime = substream->runtime;
1530 struct snd_ali_voice *pvoice = runtime->private_data;
1531 unsigned int cso;
1532
1533 spin_lock(&codec->reg_lock);
1534 if (!pvoice->running) {
1535 spin_unlock(&codec->reg_lock);
1536 return 0;
1537 }
1538 outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1539 cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1540 spin_unlock(&codec->reg_lock);
1541 snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
1542
1543 return cso;
1544 }
1545
1546
1547 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1548 {
1549 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1550 struct snd_pcm_runtime *runtime = substream->runtime;
1551 struct snd_ali_voice *pvoice = runtime->private_data;
1552 unsigned int cso;
1553
1554 spin_lock(&codec->reg_lock);
1555 if (!pvoice->running) {
1556 spin_unlock_irq(&codec->reg_lock);
1557 return 0;
1558 }
1559 outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1560 cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1561 spin_unlock(&codec->reg_lock);
1562
1563 return cso;
1564 }
1565
1566 static struct snd_pcm_hardware snd_ali_playback =
1567 {
1568 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1569 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1570 SNDRV_PCM_INFO_MMAP_VALID |
1571 SNDRV_PCM_INFO_RESUME |
1572 SNDRV_PCM_INFO_SYNC_START),
1573 .formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1574 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1575 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1576 .rate_min = 4000,
1577 .rate_max = 48000,
1578 .channels_min = 1,
1579 .channels_max = 2,
1580 .buffer_bytes_max = (256*1024),
1581 .period_bytes_min = 64,
1582 .period_bytes_max = (256*1024),
1583 .periods_min = 1,
1584 .periods_max = 1024,
1585 .fifo_size = 0,
1586 };
1587
1588 /*
1589 * Capture support device description
1590 */
1591
1592 static struct snd_pcm_hardware snd_ali_capture =
1593 {
1594 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1595 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1596 SNDRV_PCM_INFO_MMAP_VALID |
1597 SNDRV_PCM_INFO_RESUME |
1598 SNDRV_PCM_INFO_SYNC_START),
1599 .formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1600 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1601 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1602 .rate_min = 4000,
1603 .rate_max = 48000,
1604 .channels_min = 1,
1605 .channels_max = 2,
1606 .buffer_bytes_max = (128*1024),
1607 .period_bytes_min = 64,
1608 .period_bytes_max = (128*1024),
1609 .periods_min = 1,
1610 .periods_max = 1024,
1611 .fifo_size = 0,
1612 };
1613
1614 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1615 {
1616 struct snd_ali_voice *pvoice = runtime->private_data;
1617 struct snd_ali *codec;
1618
1619 if (pvoice) {
1620 codec = pvoice->codec;
1621 snd_ali_free_voice(pvoice->codec, pvoice);
1622 }
1623 }
1624
1625 static int snd_ali_open(struct snd_pcm_substream *substream, int rec, int channel,
1626 struct snd_pcm_hardware *phw)
1627 {
1628 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1629 struct snd_pcm_runtime *runtime = substream->runtime;
1630 struct snd_ali_voice *pvoice;
1631
1632 pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec, channel);
1633 if (pvoice == NULL)
1634 return -EAGAIN;
1635
1636 pvoice->substream = substream;
1637 runtime->private_data = pvoice;
1638 runtime->private_free = snd_ali_pcm_free_substream;
1639
1640 runtime->hw = *phw;
1641 snd_pcm_set_sync(substream);
1642 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1643 return 0;
1644 }
1645
1646 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1647 {
1648 return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1649 }
1650
1651 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1652 {
1653 return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1654 }
1655
1656 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1657 {
1658 return 0;
1659 }
1660
1661 static int snd_ali_close(struct snd_pcm_substream *substream)
1662 {
1663 struct snd_ali *codec = snd_pcm_substream_chip(substream);
1664 struct snd_ali_voice *pvoice = substream->runtime->private_data;
1665
1666 snd_ali_disable_special_channel(codec,pvoice->number);
1667
1668 return 0;
1669 }
1670
1671 static struct snd_pcm_ops snd_ali_playback_ops = {
1672 .open = snd_ali_playback_open,
1673 .close = snd_ali_playback_close,
1674 .ioctl = snd_ali_ioctl,
1675 .hw_params = snd_ali_playback_hw_params,
1676 .hw_free = snd_ali_playback_hw_free,
1677 .prepare = snd_ali_playback_prepare,
1678 .trigger = snd_ali_trigger,
1679 .pointer = snd_ali_playback_pointer,
1680 };
1681
1682 static struct snd_pcm_ops snd_ali_capture_ops = {
1683 .open = snd_ali_capture_open,
1684 .close = snd_ali_close,
1685 .ioctl = snd_ali_ioctl,
1686 .hw_params = snd_ali_hw_params,
1687 .hw_free = snd_ali_hw_free,
1688 .prepare = snd_ali_prepare,
1689 .trigger = snd_ali_trigger,
1690 .pointer = snd_ali_pointer,
1691 };
1692
1693 /*
1694 * Modem PCM
1695 */
1696
1697 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1698 struct snd_pcm_hw_params *hw_params)
1699 {
1700 struct snd_ali *chip = snd_pcm_substream_chip(substream);
1701 unsigned int modem_num = chip->num_of_codecs - 1;
1702 snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE, params_rate(hw_params));
1703 snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1704 return snd_ali_hw_params(substream, hw_params);
1705 }
1706
1707 static struct snd_pcm_hardware snd_ali_modem =
1708 {
1709 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1710 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1711 SNDRV_PCM_INFO_MMAP_VALID |
1712 SNDRV_PCM_INFO_RESUME |
1713 SNDRV_PCM_INFO_SYNC_START),
1714 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1715 .rates = SNDRV_PCM_RATE_KNOT|SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000,
1716 .rate_min = 8000,
1717 .rate_max = 16000,
1718 .channels_min = 1,
1719 .channels_max = 1,
1720 .buffer_bytes_max = (256*1024),
1721 .period_bytes_min = 64,
1722 .period_bytes_max = (256*1024),
1723 .periods_min = 1,
1724 .periods_max = 1024,
1725 .fifo_size = 0,
1726 };
1727
1728 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec, int channel)
1729 {
1730 static unsigned int rates [] = {8000,9600,12000,16000};
1731 static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1732 .count = ARRAY_SIZE(rates),
1733 .list = rates,
1734 .mask = 0,
1735 };
1736 int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1737 if (err)
1738 return err;
1739 return snd_pcm_hw_constraint_list(substream->runtime, 0,
1740 SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1741 }
1742
1743 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1744 {
1745 return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1746 }
1747
1748 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1749 {
1750 return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1751 }
1752
1753 static struct snd_pcm_ops snd_ali_modem_playback_ops = {
1754 .open = snd_ali_modem_playback_open,
1755 .close = snd_ali_close,
1756 .ioctl = snd_pcm_lib_ioctl,
1757 .hw_params = snd_ali_modem_hw_params,
1758 .hw_free = snd_ali_hw_free,
1759 .prepare = snd_ali_prepare,
1760 .trigger = snd_ali_trigger,
1761 .pointer = snd_ali_pointer,
1762 };
1763
1764 static struct snd_pcm_ops snd_ali_modem_capture_ops = {
1765 .open = snd_ali_modem_capture_open,
1766 .close = snd_ali_close,
1767 .ioctl = snd_pcm_lib_ioctl,
1768 .hw_params = snd_ali_modem_hw_params,
1769 .hw_free = snd_ali_hw_free,
1770 .prepare = snd_ali_prepare,
1771 .trigger = snd_ali_trigger,
1772 .pointer = snd_ali_pointer,
1773 };
1774
1775
1776 struct ali_pcm_description {
1777 char *name;
1778 unsigned int playback_num;
1779 unsigned int capture_num;
1780 struct snd_pcm_ops *playback_ops;
1781 struct snd_pcm_ops *capture_ops;
1782 unsigned short class;
1783 };
1784
1785
1786 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1787 {
1788 struct snd_ali *codec = pcm->private_data;
1789 codec->pcm[pcm->device] = NULL;
1790 }
1791
1792
1793 static int __devinit snd_ali_pcm(struct snd_ali * codec, int device, struct ali_pcm_description *desc)
1794 {
1795 struct snd_pcm *pcm;
1796 int err;
1797
1798 err = snd_pcm_new(codec->card, desc->name, device,
1799 desc->playback_num, desc->capture_num, &pcm);
1800 if (err < 0) {
1801 snd_printk(KERN_ERR "snd_ali_pcm: err called snd_pcm_new.\n");
1802 return err;
1803 }
1804 pcm->private_data = codec;
1805 pcm->private_free = snd_ali_pcm_free;
1806 if (desc->playback_ops)
1807 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, desc->playback_ops);
1808 if (desc->capture_ops)
1809 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, desc->capture_ops);
1810
1811 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1812 snd_dma_pci_data(codec->pci), 64*1024, 128*1024);
1813
1814 pcm->info_flags = 0;
1815 pcm->dev_class = desc->class;
1816 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1817 strcpy(pcm->name, desc->name);
1818 codec->pcm[0] = pcm;
1819 return 0;
1820 }
1821
1822 static struct ali_pcm_description ali_pcms[] = {
1823 { "ALI 5451", ALI_CHANNELS, 1, &snd_ali_playback_ops, &snd_ali_capture_ops },
1824 { "ALI 5451 modem", 1, 1, &snd_ali_modem_playback_ops, &snd_ali_modem_capture_ops, SNDRV_PCM_CLASS_MODEM }
1825 };
1826
1827 static int __devinit snd_ali_build_pcms(struct snd_ali *codec)
1828 {
1829 int i, err;
1830 for(i = 0 ; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms) ; i++)
1831 if((err = snd_ali_pcm(codec, i, &ali_pcms[i])) < 0)
1832 return err;
1833 return 0;
1834 }
1835
1836
1837 #define ALI5451_SPDIF(xname, xindex, value) \
1838 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1839 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1840 .put = snd_ali5451_spdif_put, .private_value = value}
1841
1842 static int snd_ali5451_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1843 {
1844 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1845 uinfo->count = 1;
1846 uinfo->value.integer.min = 0;
1847 uinfo->value.integer.max = 1;
1848 return 0;
1849 }
1850
1851 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1852 {
1853 struct snd_ali *codec = kcontrol->private_data;
1854 unsigned int enable;
1855
1856 enable = ucontrol->value.integer.value[0] ? 1 : 0;
1857
1858 spin_lock_irq(&codec->reg_lock);
1859 switch(kcontrol->private_value) {
1860 case 0:
1861 enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1862 break;
1863 case 1:
1864 enable = ((codec->spdif_mask & 0x02) && (codec->spdif_mask & 0x04)) ? 1 : 0;
1865 break;
1866 case 2:
1867 enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1868 break;
1869 default:
1870 break;
1871 }
1872 ucontrol->value.integer.value[0] = enable;
1873 spin_unlock_irq(&codec->reg_lock);
1874 return 0;
1875 }
1876
1877 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1878 {
1879 struct snd_ali *codec = kcontrol->private_data;
1880 unsigned int change = 0, enable = 0;
1881
1882 enable = ucontrol->value.integer.value[0] ? 1 : 0;
1883
1884 spin_lock_irq(&codec->reg_lock);
1885 switch (kcontrol->private_value) {
1886 case 0:
1887 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1888 change = change ^ enable;
1889 if (change) {
1890 if (enable) {
1891 codec->spdif_mask |= 0x02;
1892 snd_ali_enable_spdif_out(codec);
1893 } else {
1894 codec->spdif_mask &= ~(0x02);
1895 codec->spdif_mask &= ~(0x04);
1896 snd_ali_disable_spdif_out(codec);
1897 }
1898 }
1899 break;
1900 case 1:
1901 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1902 change = change ^ enable;
1903 if (change && (codec->spdif_mask & 0x02)) {
1904 if (enable) {
1905 codec->spdif_mask |= 0x04;
1906 snd_ali_enable_spdif_chnout(codec);
1907 } else {
1908 codec->spdif_mask &= ~(0x04);
1909 snd_ali_disable_spdif_chnout(codec);
1910 }
1911 }
1912 break;
1913 case 2:
1914 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1915 change = change ^ enable;
1916 if (change) {
1917 if (enable) {
1918 codec->spdif_mask |= 0x01;
1919 snd_ali_enable_spdif_in(codec);
1920 } else {
1921 codec->spdif_mask &= ~(0x01);
1922 snd_ali_disable_spdif_in(codec);
1923 }
1924 }
1925 break;
1926 default:
1927 break;
1928 }
1929 spin_unlock_irq(&codec->reg_lock);
1930
1931 return change;
1932 }
1933
1934 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] __devinitdata = {
1935 /* spdif aplayback switch */
1936 /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1937 ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1938 /* spdif out to spdif channel */
1939 ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1940 /* spdif in from spdif channel */
1941 ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1942 };
1943
1944 static void snd_ali_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1945 {
1946 struct snd_ali *codec = bus->private_data;
1947 codec->ac97_bus = NULL;
1948 }
1949
1950 static void snd_ali_mixer_free_ac97(struct snd_ac97 *ac97)
1951 {
1952 struct snd_ali *codec = ac97->private_data;
1953 codec->ac97[ac97->num] = NULL;
1954 }
1955
1956 static int __devinit snd_ali_mixer(struct snd_ali * codec)
1957 {
1958 struct snd_ac97_template ac97;
1959 unsigned int idx;
1960 int i, err;
1961 static struct snd_ac97_bus_ops ops = {
1962 .write = snd_ali_codec_write,
1963 .read = snd_ali_codec_read,
1964 };
1965
1966 if ((err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus)) < 0)
1967 return err;
1968 codec->ac97_bus->private_free = snd_ali_mixer_free_ac97_bus;
1969
1970 memset(&ac97, 0, sizeof(ac97));
1971 ac97.private_data = codec;
1972 ac97.private_free = snd_ali_mixer_free_ac97;
1973
1974 for ( i = 0 ; i < codec->num_of_codecs ; i++) {
1975 ac97.num = i;
1976 if ((err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i])) < 0) {
1977 snd_printk(KERN_ERR "ali mixer %d creating error.\n", i);
1978 if(i == 0)
1979 return err;
1980 codec->num_of_codecs = 1;
1981 break;
1982 }
1983 }
1984
1985 if (codec->spdif_support) {
1986 for(idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1987 err=snd_ctl_add(codec->card, snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1988 if (err < 0) return err;
1989 }
1990 }
1991 return 0;
1992 }
1993
1994 #ifdef CONFIG_PM
1995 static int ali_suspend(struct pci_dev *pci, pm_message_t state)
1996 {
1997 struct snd_card *card = pci_get_drvdata(pci);
1998 struct snd_ali *chip = card->private_data;
1999 struct snd_ali_image *im;
2000 int i, j;
2001
2002 im = chip->image;
2003 if (! im)
2004 return 0;
2005
2006 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2007 for(i = 0 ; i < chip->num_of_codecs ; i++) {
2008 snd_pcm_suspend_all(chip->pcm[i]);
2009 snd_ac97_suspend(chip->ac97[i]);
2010 }
2011
2012 spin_lock_irq(&chip->reg_lock);
2013
2014 im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
2015 // im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START));
2016 im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
2017
2018 // disable all IRQ bits
2019 outl(0, ALI_REG(chip, ALI_MISCINT));
2020
2021 for (i = 0; i < ALI_GLOBAL_REGS; i++) {
2022 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
2023 continue;
2024 im->regs[i] = inl(ALI_REG(chip, i*4));
2025 }
2026
2027 for (i = 0; i < ALI_CHANNELS; i++) {
2028 outb(i, ALI_REG(chip, ALI_GC_CIR));
2029 for (j = 0; j < ALI_CHANNEL_REGS; j++)
2030 im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
2031 }
2032
2033 // stop all HW channel
2034 outl(0xffffffff, ALI_REG(chip, ALI_STOP));
2035
2036 spin_unlock_irq(&chip->reg_lock);
2037 pci_disable_device(pci);
2038 pci_save_state(pci);
2039 return 0;
2040 }
2041
2042 static int ali_resume(struct pci_dev *pci)
2043 {
2044 struct snd_card *card = pci_get_drvdata(pci);
2045 struct snd_ali *chip = card->private_data;
2046 struct snd_ali_image *im;
2047 int i, j;
2048
2049 im = chip->image;
2050 if (! im)
2051 return 0;
2052
2053 pci_restore_state(pci);
2054 pci_enable_device(pci);
2055
2056 spin_lock_irq(&chip->reg_lock);
2057
2058 for (i = 0; i < ALI_CHANNELS; i++) {
2059 outb(i, ALI_REG(chip, ALI_GC_CIR));
2060 for (j = 0; j < ALI_CHANNEL_REGS; j++)
2061 outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
2062 }
2063
2064 for (i = 0; i < ALI_GLOBAL_REGS; i++) {
2065 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) || (i*4 == ALI_START))
2066 continue;
2067 outl(im->regs[i], ALI_REG(chip, i*4));
2068 }
2069
2070 // start HW channel
2071 outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
2072 // restore IRQ enable bits
2073 outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
2074
2075 spin_unlock_irq(&chip->reg_lock);
2076
2077 for(i = 0 ; i < chip->num_of_codecs ; i++)
2078 snd_ac97_resume(chip->ac97[i]);
2079
2080 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2081 return 0;
2082 }
2083 #endif /* CONFIG_PM */
2084
2085 static int snd_ali_free(struct snd_ali * codec)
2086 {
2087 if (codec->hw_initialized)
2088 snd_ali_disable_address_interrupt(codec);
2089 if (codec->irq >= 0) {
2090 synchronize_irq(codec->irq);
2091 free_irq(codec->irq, (void *)codec);
2092 }
2093 if (codec->port)
2094 pci_release_regions(codec->pci);
2095 pci_disable_device(codec->pci);
2096 #ifdef CONFIG_PM
2097 kfree(codec->image);
2098 #endif
2099 pci_dev_put(codec->pci_m1533);
2100 pci_dev_put(codec->pci_m7101);
2101 kfree(codec);
2102 return 0;
2103 }
2104
2105 static int snd_ali_chip_init(struct snd_ali *codec)
2106 {
2107 unsigned int legacy;
2108 unsigned char temp;
2109 struct pci_dev *pci_dev = NULL;
2110
2111 snd_ali_printk("chip initializing ... \n");
2112
2113 if (snd_ali_reset_5451(codec)) {
2114 snd_printk(KERN_ERR "ali_chip_init: reset 5451 error.\n");
2115 return -1;
2116 }
2117
2118 if (codec->revision == ALI_5451_V02) {
2119 pci_dev = codec->pci_m1533;
2120 pci_read_config_byte(pci_dev, 0x59, &temp);
2121 temp |= 0x80;
2122 pci_write_config_byte(pci_dev, 0x59, temp);
2123
2124 pci_dev = codec->pci_m7101;
2125 pci_read_config_byte(pci_dev, 0xb8, &temp);
2126 temp |= 0x20;
2127 pci_write_config_byte(pci_dev, 0xB8, temp);
2128 }
2129
2130 pci_read_config_dword(codec->pci, 0x44, &legacy);
2131 legacy &= 0xff00ff00;
2132 legacy |= 0x000800aa;
2133 pci_write_config_dword(codec->pci, 0x44, legacy);
2134
2135 outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2136 outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2137 outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2138 outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2139 outb(0x10, ALI_REG(codec, ALI_MPUR2));
2140
2141 codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2142 codec->ac97_ext_status = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_STATUS);
2143 if (codec->spdif_support) {
2144 snd_ali_enable_spdif_out(codec);
2145 codec->spdif_mask = 0x00000002;
2146 }
2147
2148 codec->num_of_codecs = 1;
2149
2150 /* secondary codec - modem */
2151 if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2152 codec->num_of_codecs++;
2153 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2154 (ALI_SCTRL_LINE_IN2|ALI_SCTRL_GPIO_IN2|ALI_SCTRL_LINE_OUT_EN),
2155 ALI_REG(codec, ALI_SCTRL));
2156 }
2157
2158 snd_ali_printk("chip initialize succeed.\n");
2159 return 0;
2160
2161 }
2162
2163 /* proc for register dump */
2164 static void snd_ali_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buf)
2165 {
2166 struct snd_ali *codec = entry->private_data;
2167 int i;
2168 for(i = 0 ; i < 256 ; i+= 4)
2169 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2170 }
2171
2172 static void __devinit snd_ali_proc_init(struct snd_ali *codec)
2173 {
2174 struct snd_info_entry *entry;
2175 if(!snd_card_proc_new(codec->card, "ali5451", &entry))
2176 snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
2177 }
2178
2179 static int __devinit snd_ali_resources(struct snd_ali *codec)
2180 {
2181 int err;
2182
2183 snd_ali_printk("resouces allocation ...\n");
2184 if ((err = pci_request_regions(codec->pci, "ALI 5451")) < 0)
2185 return err;
2186 codec->port = pci_resource_start(codec->pci, 0);
2187
2188 if (request_irq(codec->pci->irq, snd_ali_card_interrupt, SA_INTERRUPT|SA_SHIRQ, "ALI 5451", (void *)codec)) {
2189 snd_printk(KERN_ERR "Unable to request irq.\n");
2190 return -EBUSY;
2191 }
2192 codec->irq = codec->pci->irq;
2193 snd_ali_printk("resouces allocated.\n");
2194 return 0;
2195 }
2196 static int snd_ali_dev_free(struct snd_device *device)
2197 {
2198 struct snd_ali *codec=device->device_data;
2199 snd_ali_free(codec);
2200 return 0;
2201 }
2202
2203 static int __devinit snd_ali_create(struct snd_card *card,
2204 struct pci_dev *pci,
2205 int pcm_streams,
2206 int spdif_support,
2207 struct snd_ali ** r_ali)
2208 {
2209 struct snd_ali *codec;
2210 int i, err;
2211 unsigned short cmdw;
2212 static struct snd_device_ops ops = {
2213 .dev_free = snd_ali_dev_free,
2214 };
2215
2216 *r_ali = NULL;
2217
2218 snd_ali_printk("creating ...\n");
2219
2220 /* enable PCI device */
2221 if ((err = pci_enable_device(pci)) < 0)
2222 return err;
2223 /* check, if we can restrict PCI DMA transfers to 31 bits */
2224 if (pci_set_dma_mask(pci, DMA_31BIT_MASK) < 0 ||
2225 pci_set_consistent_dma_mask(pci, DMA_31BIT_MASK) < 0) {
2226 snd_printk(KERN_ERR "architecture does not support 31bit PCI busmaster DMA\n");
2227 pci_disable_device(pci);
2228 return -ENXIO;
2229 }
2230
2231 if ((codec = kzalloc(sizeof(*codec), GFP_KERNEL)) == NULL) {
2232 pci_disable_device(pci);
2233 return -ENOMEM;
2234 }
2235
2236 spin_lock_init(&codec->reg_lock);
2237 spin_lock_init(&codec->voice_alloc);
2238
2239 codec->card = card;
2240 codec->pci = pci;
2241 codec->irq = -1;
2242 pci_read_config_byte(pci, PCI_REVISION_ID, &codec->revision);
2243 codec->spdif_support = spdif_support;
2244
2245 if (pcm_streams < 1)
2246 pcm_streams = 1;
2247 if (pcm_streams > 32)
2248 pcm_streams = 32;
2249
2250 pci_set_master(pci);
2251 pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2252 if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2253 cmdw |= PCI_COMMAND_IO;
2254 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2255 }
2256 pci_set_master(pci);
2257
2258 if (snd_ali_resources(codec)) {
2259 snd_ali_free(codec);
2260 return -EBUSY;
2261 }
2262
2263 synchronize_irq(pci->irq);
2264
2265 codec->synth.chmap = 0;
2266 codec->synth.chcnt = 0;
2267 codec->spdif_mask = 0;
2268 codec->synth.synthcount = 0;
2269
2270 if (codec->revision == ALI_5451_V02)
2271 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2272 else
2273 codec->chregs.regs.ac97read = ALI_AC97_READ;
2274 codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2275
2276 codec->chregs.regs.start = ALI_START;
2277 codec->chregs.regs.stop = ALI_STOP;
2278 codec->chregs.regs.aint = ALI_AINT;
2279 codec->chregs.regs.ainten = ALI_AINTEN;
2280
2281 codec->chregs.data.start = 0x00;
2282 codec->chregs.data.stop = 0x00;
2283 codec->chregs.data.aint = 0x00;
2284 codec->chregs.data.ainten = 0x00;
2285
2286 /* M1533: southbridge */
2287 codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2288 if (! codec->pci_m1533) {
2289 snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
2290 snd_ali_free(codec);
2291 return -ENODEV;
2292 }
2293 /* M7101: power management */
2294 codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2295 if (! codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2296 snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
2297 snd_ali_free(codec);
2298 return -ENODEV;
2299 }
2300
2301 snd_ali_printk("snd_device_new is called.\n");
2302 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops)) < 0) {
2303 snd_ali_free(codec);
2304 return err;
2305 }
2306
2307 /* initialise synth voices*/
2308 for (i = 0; i < ALI_CHANNELS; i++ ) {
2309 codec->synth.voices[i].number = i;
2310 }
2311
2312 if ((err = snd_ali_chip_init(codec)) < 0) {
2313 snd_printk(KERN_ERR "ali create: chip init error.\n");
2314 return err;
2315 }
2316
2317 #ifdef CONFIG_PM
2318 codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2319 if (! codec->image)
2320 snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2321 #endif
2322
2323 snd_ali_enable_address_interrupt(codec);
2324 codec->hw_initialized = 1;
2325
2326 *r_ali = codec;
2327 snd_ali_printk("created.\n");
2328 return 0;
2329 }
2330
2331 static int __devinit snd_ali_probe(struct pci_dev *pci,
2332 const struct pci_device_id *pci_id)
2333 {
2334 struct snd_card *card;
2335 struct snd_ali *codec;
2336 int err;
2337
2338 snd_ali_printk("probe ...\n");
2339
2340 card = snd_card_new(index, id, THIS_MODULE, 0);
2341 if (card == NULL)
2342 return -ENOMEM;
2343
2344 if ((err = snd_ali_create(card, pci, pcm_channels, spdif, &codec)) < 0) {
2345 snd_card_free(card);
2346 return err;
2347 }
2348 card->private_data = codec;
2349
2350 snd_ali_printk("mixer building ...\n");
2351 if ((err = snd_ali_mixer(codec)) < 0) {
2352 snd_card_free(card);
2353 return err;
2354 }
2355
2356 snd_ali_printk("pcm building ...\n");
2357 if ((err = snd_ali_build_pcms(codec)) < 0) {
2358 snd_card_free(card);
2359 return err;
2360 }
2361
2362 snd_ali_proc_init(codec);
2363
2364 strcpy(card->driver, "ALI5451");
2365 strcpy(card->shortname, "ALI 5451");
2366
2367 sprintf(card->longname, "%s at 0x%lx, irq %li",
2368 card->shortname, codec->port, codec->irq);
2369
2370 snd_ali_printk("register card.\n");
2371 if ((err = snd_card_register(card)) < 0) {
2372 snd_card_free(card);
2373 return err;
2374 }
2375 pci_set_drvdata(pci, card);
2376 return 0;
2377 }
2378
2379 static void __devexit snd_ali_remove(struct pci_dev *pci)
2380 {
2381 snd_card_free(pci_get_drvdata(pci));
2382 pci_set_drvdata(pci, NULL);
2383 }
2384
2385 static struct pci_driver driver = {
2386 .name = "ALI 5451",
2387 .id_table = snd_ali_ids,
2388 .probe = snd_ali_probe,
2389 .remove = __devexit_p(snd_ali_remove),
2390 #ifdef CONFIG_PM
2391 .suspend = ali_suspend,
2392 .resume = ali_resume,
2393 #endif
2394 };
2395
2396 static int __init alsa_card_ali_init(void)
2397 {
2398 return pci_register_driver(&driver);
2399 }
2400
2401 static void __exit alsa_card_ali_exit(void)
2402 {
2403 pci_unregister_driver(&driver);
2404 }
2405
2406 module_init(alsa_card_ali_init)
2407 module_exit(alsa_card_ali_exit)
Linux kernel - Deliverables
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