xref: /openbmc/linux/sound/pci/ali5451/ali5451.c (revision 5bc15640)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Matt Wu <Matt_Wu@acersoftech.com.cn>
4  *  Apr 26, 2001
5  *  Routines for control of ALi pci audio M5451
6  *
7  *  BUGS:
8  *    --
9  *
10  *  TODO:
11  *    --
12  */
13 
14 #include <linux/io.h>
15 #include <linux/delay.h>
16 #include <linux/interrupt.h>
17 #include <linux/init.h>
18 #include <linux/pci.h>
19 #include <linux/slab.h>
20 #include <linux/module.h>
21 #include <linux/dma-mapping.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/info.h>
25 #include <sound/ac97_codec.h>
26 #include <sound/mpu401.h>
27 #include <sound/initval.h>
28 
29 MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
30 MODULE_DESCRIPTION("ALI M5451");
31 MODULE_LICENSE("GPL");
32 
33 static int index = SNDRV_DEFAULT_IDX1;	/* Index */
34 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
35 static int pcm_channels = 32;
36 static bool spdif;
37 
38 module_param(index, int, 0444);
39 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
40 module_param(id, charp, 0444);
41 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
42 module_param(pcm_channels, int, 0444);
43 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
44 module_param(spdif, bool, 0444);
45 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
46 
47 /* just for backward compatibility */
48 static bool enable;
49 module_param(enable, bool, 0444);
50 
51 
52 /*
53  *  Constants definition
54  */
55 
56 #define DEVICE_ID_ALI5451	((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
57 
58 
59 #define ALI_CHANNELS		32
60 
61 #define ALI_PCM_IN_CHANNEL	31
62 #define ALI_SPDIF_IN_CHANNEL	19
63 #define ALI_SPDIF_OUT_CHANNEL	15
64 #define ALI_CENTER_CHANNEL	24
65 #define ALI_LEF_CHANNEL		23
66 #define ALI_SURR_LEFT_CHANNEL	26
67 #define ALI_SURR_RIGHT_CHANNEL	25
68 #define ALI_MODEM_IN_CHANNEL    21
69 #define ALI_MODEM_OUT_CHANNEL   20
70 
71 #define	SNDRV_ALI_VOICE_TYPE_PCM	01
72 #define SNDRV_ALI_VOICE_TYPE_OTH	02
73 
74 #define	ALI_5451_V02		0x02
75 
76 /*
77  *  Direct Registers
78  */
79 
80 #define ALI_LEGACY_DMAR0        0x00  /* ADR0 */
81 #define ALI_LEGACY_DMAR4        0x04  /* CNT0 */
82 #define ALI_LEGACY_DMAR11       0x0b  /* MOD  */
83 #define ALI_LEGACY_DMAR15       0x0f  /* MMR  */
84 #define ALI_MPUR0		0x20
85 #define ALI_MPUR1		0x21
86 #define ALI_MPUR2		0x22
87 #define ALI_MPUR3		0x23
88 
89 #define	ALI_AC97_WRITE		0x40
90 #define ALI_AC97_READ		0x44
91 
92 #define ALI_SCTRL		0x48
93 #define   ALI_SPDIF_OUT_ENABLE		0x20
94 #define   ALI_SCTRL_LINE_IN2		(1 << 9)
95 #define   ALI_SCTRL_GPIO_IN2		(1 << 13)
96 #define   ALI_SCTRL_LINE_OUT_EN 	(1 << 20)
97 #define   ALI_SCTRL_GPIO_OUT_EN 	(1 << 23)
98 #define   ALI_SCTRL_CODEC1_READY	(1 << 24)
99 #define   ALI_SCTRL_CODEC2_READY	(1 << 25)
100 #define ALI_AC97_GPIO		0x4c
101 #define   ALI_AC97_GPIO_ENABLE		0x8000
102 #define   ALI_AC97_GPIO_DATA_SHIFT	16
103 #define ALI_SPDIF_CS		0x70
104 #define ALI_SPDIF_CTRL		0x74
105 #define   ALI_SPDIF_IN_FUNC_ENABLE	0x02
106 #define   ALI_SPDIF_IN_CH_STATUS	0x40
107 #define   ALI_SPDIF_OUT_CH_STATUS	0xbf
108 #define ALI_START		0x80
109 #define ALI_STOP		0x84
110 #define ALI_CSPF		0x90
111 #define ALI_AINT		0x98
112 #define ALI_GC_CIR		0xa0
113 	#define ENDLP_IE		0x00001000
114 	#define MIDLP_IE		0x00002000
115 #define ALI_AINTEN		0xa4
116 #define ALI_VOLUME		0xa8
117 #define ALI_SBDELTA_DELTA_R     0xac
118 #define ALI_MISCINT		0xb0
119 	#define ADDRESS_IRQ		0x00000020
120 	#define TARGET_REACHED		0x00008000
121 	#define MIXER_OVERFLOW		0x00000800
122 	#define MIXER_UNDERFLOW		0x00000400
123 	#define GPIO_IRQ		0x01000000
124 #define ALI_SBBL_SBCL           0xc0
125 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
126 #define ALI_STIMER		0xc8
127 #define ALI_GLOBAL_CONTROL	0xd4
128 #define   ALI_SPDIF_OUT_SEL_PCM		0x00000400 /* bit 10 */
129 #define   ALI_SPDIF_IN_SUPPORT		0x00000800 /* bit 11 */
130 #define   ALI_SPDIF_OUT_CH_ENABLE	0x00008000 /* bit 15 */
131 #define   ALI_SPDIF_IN_CH_ENABLE	0x00080000 /* bit 19 */
132 #define   ALI_PCM_IN_ENABLE		0x80000000 /* bit 31 */
133 
134 #define ALI_CSO_ALPHA_FMS	0xe0
135 #define ALI_LBA			0xe4
136 #define ALI_ESO_DELTA		0xe8
137 #define ALI_GVSEL_PAN_VOC_CTRL_EC	0xf0
138 #define ALI_EBUF1		0xf4
139 #define ALI_EBUF2		0xf8
140 
141 #define ALI_REG(codec, x) ((codec)->port + x)
142 
143 #define MAX_CODECS 2
144 
145 
146 struct snd_ali;
147 struct snd_ali_voice;
148 
149 struct snd_ali_channel_control {
150 	/* register data */
151 	struct REGDATA {
152 		unsigned int start;
153 		unsigned int stop;
154 		unsigned int aint;
155 		unsigned int ainten;
156 	} data;
157 
158 	/* register addresses */
159 	struct REGS {
160 		unsigned int start;
161 		unsigned int stop;
162 		unsigned int aint;
163 		unsigned int ainten;
164 		unsigned int ac97read;
165 		unsigned int ac97write;
166 	} regs;
167 
168 };
169 
170 struct snd_ali_voice {
171 	unsigned int number;
172 	unsigned int use :1,
173 		pcm :1,
174 		midi :1,
175 		mode :1,
176 		synth :1,
177 		running :1;
178 
179 	/* PCM data */
180 	struct snd_ali *codec;
181 	struct snd_pcm_substream *substream;
182 	struct snd_ali_voice *extra;
183 
184 	int eso;                /* final ESO value for channel */
185 	int count;              /* runtime->period_size */
186 
187 	/* --- */
188 
189 	void *private_data;
190 	void (*private_free)(void *private_data);
191 };
192 
193 
194 struct snd_alidev {
195 
196 	struct snd_ali_voice voices[ALI_CHANNELS];
197 
198 	unsigned int	chcnt;			/* num of opened channels */
199 	unsigned int	chmap;			/* bitmap for opened channels */
200 	unsigned int synthcount;
201 
202 };
203 
204 
205 #define ALI_GLOBAL_REGS		56
206 #define ALI_CHANNEL_REGS	8
207 struct snd_ali_image {
208 	u32 regs[ALI_GLOBAL_REGS];
209 	u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
210 };
211 
212 
213 struct snd_ali {
214 	int		irq;
215 	unsigned long	port;
216 	unsigned char	revision;
217 
218 	unsigned int hw_initialized :1;
219 	unsigned int spdif_support :1;
220 
221 	struct pci_dev	*pci;
222 	struct pci_dev	*pci_m1533;
223 	struct pci_dev	*pci_m7101;
224 
225 	struct snd_card	*card;
226 	struct snd_pcm	*pcm[MAX_CODECS];
227 	struct snd_alidev	synth;
228 	struct snd_ali_channel_control chregs;
229 
230 	/* S/PDIF Mask */
231 	unsigned int	spdif_mask;
232 
233 	unsigned int spurious_irq_count;
234 	unsigned int spurious_irq_max_delta;
235 
236 	unsigned int num_of_codecs;
237 
238 	struct snd_ac97_bus *ac97_bus;
239 	struct snd_ac97 *ac97[MAX_CODECS];
240 	unsigned short	ac97_ext_id;
241 	unsigned short	ac97_ext_status;
242 
243 	spinlock_t	reg_lock;
244 	spinlock_t	voice_alloc;
245 
246 #ifdef CONFIG_PM_SLEEP
247 	struct snd_ali_image *image;
248 #endif
249 };
250 
251 static const struct pci_device_id snd_ali_ids[] = {
252 	{PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
253 	{0, }
254 };
255 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
256 
257 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
258 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
259 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
260 			       unsigned short);
261 
262 /*
263  *  AC97 ACCESS
264  */
265 
snd_ali_5451_peek(struct snd_ali * codec,unsigned int port)266 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
267 					     unsigned int port)
268 {
269 	return (unsigned int)inl(ALI_REG(codec, port));
270 }
271 
snd_ali_5451_poke(struct snd_ali * codec,unsigned int port,unsigned int val)272 static inline void snd_ali_5451_poke(struct snd_ali *codec,
273 				     unsigned int port,
274 				     unsigned int val)
275 {
276 	outl((unsigned int)val, ALI_REG(codec, port));
277 }
278 
snd_ali_codec_ready(struct snd_ali * codec,unsigned int port)279 static int snd_ali_codec_ready(struct snd_ali *codec,
280 			       unsigned int port)
281 {
282 	unsigned long end_time;
283 	unsigned int res;
284 
285 	end_time = jiffies + msecs_to_jiffies(250);
286 
287 	for (;;) {
288 		res = snd_ali_5451_peek(codec,port);
289 		if (!(res & 0x8000))
290 			return 0;
291 		if (!time_after_eq(end_time, jiffies))
292 			break;
293 		schedule_timeout_uninterruptible(1);
294 	}
295 
296 	snd_ali_5451_poke(codec, port, res & ~0x8000);
297 	dev_dbg(codec->card->dev, "ali_codec_ready: codec is not ready.\n ");
298 	return -EIO;
299 }
300 
snd_ali_stimer_ready(struct snd_ali * codec)301 static int snd_ali_stimer_ready(struct snd_ali *codec)
302 {
303 	unsigned long end_time;
304 	unsigned long dwChk1,dwChk2;
305 
306 	dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
307 	end_time = jiffies + msecs_to_jiffies(250);
308 
309 	for (;;) {
310 		dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
311 		if (dwChk2 != dwChk1)
312 			return 0;
313 		if (!time_after_eq(end_time, jiffies))
314 			break;
315 		schedule_timeout_uninterruptible(1);
316 	}
317 
318 	dev_err(codec->card->dev, "ali_stimer_read: stimer is not ready.\n");
319 	return -EIO;
320 }
321 
snd_ali_codec_poke(struct snd_ali * codec,int secondary,unsigned short reg,unsigned short val)322 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
323 			       unsigned short reg,
324 			       unsigned short val)
325 {
326 	unsigned int dwVal;
327 	unsigned int port;
328 
329 	if (reg >= 0x80) {
330 		dev_err(codec->card->dev,
331 			"ali_codec_poke: reg(%xh) invalid.\n", reg);
332 		return;
333 	}
334 
335 	port = codec->chregs.regs.ac97write;
336 
337 	if (snd_ali_codec_ready(codec, port) < 0)
338 		return;
339 	if (snd_ali_stimer_ready(codec) < 0)
340 		return;
341 
342 	dwVal  = (unsigned int) (reg & 0xff);
343 	dwVal |= 0x8000 | (val << 16);
344 	if (secondary)
345 		dwVal |= 0x0080;
346 	if (codec->revision == ALI_5451_V02)
347 		dwVal |= 0x0100;
348 
349 	snd_ali_5451_poke(codec, port, dwVal);
350 
351 	return ;
352 }
353 
snd_ali_codec_peek(struct snd_ali * codec,int secondary,unsigned short reg)354 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
355 					 int secondary,
356 					 unsigned short reg)
357 {
358 	unsigned int dwVal;
359 	unsigned int port;
360 
361 	if (reg >= 0x80) {
362 		dev_err(codec->card->dev,
363 			"ali_codec_peek: reg(%xh) invalid.\n", reg);
364 		return ~0;
365 	}
366 
367 	port = codec->chregs.regs.ac97read;
368 
369 	if (snd_ali_codec_ready(codec, port) < 0)
370 		return ~0;
371 	if (snd_ali_stimer_ready(codec) < 0)
372 		return ~0;
373 
374 	dwVal  = (unsigned int) (reg & 0xff);
375 	dwVal |= 0x8000;				/* bit 15*/
376 	if (secondary)
377 		dwVal |= 0x0080;
378 
379 	snd_ali_5451_poke(codec, port, dwVal);
380 
381 	if (snd_ali_stimer_ready(codec) < 0)
382 		return ~0;
383 	if (snd_ali_codec_ready(codec, port) < 0)
384 		return ~0;
385 
386 	return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
387 }
388 
snd_ali_codec_write(struct snd_ac97 * ac97,unsigned short reg,unsigned short val)389 static void snd_ali_codec_write(struct snd_ac97 *ac97,
390 				unsigned short reg,
391 				unsigned short val )
392 {
393 	struct snd_ali *codec = ac97->private_data;
394 
395 	dev_dbg(codec->card->dev, "codec_write: reg=%xh data=%xh.\n", reg, val);
396 	if (reg == AC97_GPIO_STATUS) {
397 		outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
398 		     ALI_REG(codec, ALI_AC97_GPIO));
399 		return;
400 	}
401 	snd_ali_codec_poke(codec, ac97->num, reg, val);
402 	return ;
403 }
404 
405 
snd_ali_codec_read(struct snd_ac97 * ac97,unsigned short reg)406 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
407 					 unsigned short reg)
408 {
409 	struct snd_ali *codec = ac97->private_data;
410 
411 	dev_dbg(codec->card->dev, "codec_read reg=%xh.\n", reg);
412 	return snd_ali_codec_peek(codec, ac97->num, reg);
413 }
414 
415 /*
416  *	AC97 Reset
417  */
418 
snd_ali_reset_5451(struct snd_ali * codec)419 static int snd_ali_reset_5451(struct snd_ali *codec)
420 {
421 	struct pci_dev *pci_dev;
422 	unsigned short wCount, wReg;
423 	unsigned int   dwVal;
424 
425 	pci_dev = codec->pci_m1533;
426 	if (pci_dev) {
427 		pci_read_config_dword(pci_dev, 0x7c, &dwVal);
428 		pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
429 		mdelay(5);
430 		pci_read_config_dword(pci_dev, 0x7c, &dwVal);
431 		pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
432 		mdelay(5);
433 	}
434 
435 	pci_dev = codec->pci;
436 	pci_read_config_dword(pci_dev, 0x44, &dwVal);
437 	pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
438 	udelay(500);
439 	pci_read_config_dword(pci_dev, 0x44, &dwVal);
440 	pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
441 	mdelay(5);
442 
443 	wCount = 200;
444 	while(wCount--) {
445 		wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
446 		if ((wReg & 0x000f) == 0x000f)
447 			return 0;
448 		mdelay(5);
449 	}
450 
451 	/* non-fatal if you have a non PM capable codec */
452 	/* dev_warn(codec->card->dev, "ali5451: reset time out\n"); */
453 	return 0;
454 }
455 
456 /*
457  *  ALI 5451 Controller
458  */
459 
snd_ali_enable_special_channel(struct snd_ali * codec,unsigned int channel)460 static void snd_ali_enable_special_channel(struct snd_ali *codec,
461 					   unsigned int channel)
462 {
463 	unsigned long dwVal;
464 
465 	dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
466 	dwVal |= 1 << (channel & 0x0000001f);
467 	outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
468 }
469 
snd_ali_disable_special_channel(struct snd_ali * codec,unsigned int channel)470 static void snd_ali_disable_special_channel(struct snd_ali *codec,
471 					    unsigned int channel)
472 {
473 	unsigned long dwVal;
474 
475 	dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
476 	dwVal &= ~(1 << (channel & 0x0000001f));
477 	outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
478 }
479 
snd_ali_enable_address_interrupt(struct snd_ali * codec)480 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
481 {
482 	unsigned int gc;
483 
484 	gc  = inl(ALI_REG(codec, ALI_GC_CIR));
485 	gc |= ENDLP_IE;
486 	gc |= MIDLP_IE;
487 	outl( gc, ALI_REG(codec, ALI_GC_CIR));
488 }
489 
snd_ali_disable_address_interrupt(struct snd_ali * codec)490 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
491 {
492 	unsigned int gc;
493 
494 	gc  = inl(ALI_REG(codec, ALI_GC_CIR));
495 	gc &= ~ENDLP_IE;
496 	gc &= ~MIDLP_IE;
497 	outl(gc, ALI_REG(codec, ALI_GC_CIR));
498 }
499 
snd_ali_disable_voice_irq(struct snd_ali * codec,unsigned int channel)500 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
501 				      unsigned int channel)
502 {
503 	unsigned int mask;
504 	struct snd_ali_channel_control *pchregs = &(codec->chregs);
505 
506 	dev_dbg(codec->card->dev, "disable_voice_irq channel=%d\n", channel);
507 
508 	mask = 1 << (channel & 0x1f);
509 	pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
510 	pchregs->data.ainten &= ~mask;
511 	outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
512 }
513 
snd_ali_alloc_pcm_channel(struct snd_ali * codec,int channel)514 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
515 {
516 	unsigned int idx =  channel & 0x1f;
517 
518 	if (codec->synth.chcnt >= ALI_CHANNELS){
519 		dev_err(codec->card->dev,
520 			   "ali_alloc_pcm_channel: no free channels.\n");
521 		return -1;
522 	}
523 
524 	if (!(codec->synth.chmap & (1 << idx))) {
525 		codec->synth.chmap |= 1 << idx;
526 		codec->synth.chcnt++;
527 		dev_dbg(codec->card->dev, "alloc_pcm_channel no. %d.\n", idx);
528 		return idx;
529 	}
530 	return -1;
531 }
532 
snd_ali_find_free_channel(struct snd_ali * codec,int rec)533 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
534 {
535 	int idx;
536 	int result = -1;
537 
538 	dev_dbg(codec->card->dev,
539 		"find_free_channel: for %s\n", rec ? "rec" : "pcm");
540 
541 	/* recording */
542 	if (rec) {
543 		if (codec->spdif_support &&
544 		    (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
545 		     ALI_SPDIF_IN_SUPPORT))
546 			idx = ALI_SPDIF_IN_CHANNEL;
547 		else
548 			idx = ALI_PCM_IN_CHANNEL;
549 
550 		result = snd_ali_alloc_pcm_channel(codec, idx);
551 		if (result >= 0)
552 			return result;
553 		else {
554 			dev_err(codec->card->dev,
555 				"ali_find_free_channel: record channel is busy now.\n");
556 			return -1;
557 		}
558 	}
559 
560 	/* playback... */
561 	if (codec->spdif_support &&
562 	    (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
563 	     ALI_SPDIF_OUT_CH_ENABLE)) {
564 		idx = ALI_SPDIF_OUT_CHANNEL;
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: S/PDIF out channel is in busy now.\n");
571 	}
572 
573 	for (idx = 0; idx < ALI_CHANNELS; idx++) {
574 		result = snd_ali_alloc_pcm_channel(codec, idx);
575 		if (result >= 0)
576 			return result;
577 	}
578 	dev_err(codec->card->dev, "ali_find_free_channel: no free channels.\n");
579 	return -1;
580 }
581 
snd_ali_free_channel_pcm(struct snd_ali * codec,int channel)582 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
583 {
584 	unsigned int idx = channel & 0x0000001f;
585 
586 	dev_dbg(codec->card->dev, "free_channel_pcm channel=%d\n", channel);
587 
588 	if (channel < 0 || channel >= ALI_CHANNELS)
589 		return;
590 
591 	if (!(codec->synth.chmap & (1 << idx))) {
592 		dev_err(codec->card->dev,
593 			"ali_free_channel_pcm: channel %d is not in use.\n",
594 			channel);
595 		return;
596 	} else {
597 		codec->synth.chmap &= ~(1 << idx);
598 		codec->synth.chcnt--;
599 	}
600 }
601 
snd_ali_stop_voice(struct snd_ali * codec,unsigned int channel)602 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
603 {
604 	unsigned int mask = 1 << (channel & 0x1f);
605 
606 	dev_dbg(codec->card->dev, "stop_voice: channel=%d\n", channel);
607 	outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
608 }
609 
610 /*
611  *    S/PDIF Part
612  */
613 
snd_ali_delay(struct snd_ali * codec,int interval)614 static void snd_ali_delay(struct snd_ali *codec,int interval)
615 {
616 	unsigned long  begintimer,currenttimer;
617 
618 	begintimer   = inl(ALI_REG(codec, ALI_STIMER));
619 	currenttimer = inl(ALI_REG(codec, ALI_STIMER));
620 
621 	while (currenttimer < begintimer + interval) {
622 		if (snd_ali_stimer_ready(codec) < 0)
623 			break;
624 		currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
625 		cpu_relax();
626 	}
627 }
628 
snd_ali_detect_spdif_rate(struct snd_ali * codec)629 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
630 {
631 	u16 wval;
632 	u16 count = 0;
633 	u8  bval, R1 = 0, R2;
634 
635 	bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
636 	bval |= 0x1F;
637 	outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
638 
639 	while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
640 		count ++;
641 		snd_ali_delay(codec, 6);
642 		bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
643 		R1 = bval & 0x1F;
644 	}
645 
646 	if (count > 50000) {
647 		dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
648 		return;
649 	}
650 
651 	for (count = 0; count <= 50000; count++) {
652 		snd_ali_delay(codec, 6);
653 		bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
654 		R2 = bval & 0x1F;
655 		if (R2 != R1)
656 			R1 = R2;
657 		else
658 			break;
659 	}
660 
661 	if (count > 50000) {
662 		dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
663 		return;
664 	}
665 
666 	if (R2 >= 0x0b && R2 <= 0x0e) {
667 		wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
668 		wval &= 0xe0f0;
669 		wval |= (0x09 << 8) | 0x05;
670 		outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
671 
672 		bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
673 		outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
674 	} else if (R2 == 0x12) {
675 		wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
676 		wval &= 0xe0f0;
677 		wval |= (0x0e << 8) | 0x08;
678 		outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
679 
680 		bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
681 		outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
682 	}
683 }
684 
snd_ali_get_spdif_in_rate(struct snd_ali * codec)685 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
686 {
687 	u32	dwRate;
688 	u8	bval;
689 
690 	bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
691 	bval &= 0x7f;
692 	bval |= 0x40;
693 	outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
694 
695 	snd_ali_detect_spdif_rate(codec);
696 
697 	bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
698 	bval &= 0x0f;
699 
700 	switch (bval) {
701 	case 0: dwRate = 44100; break;
702 	case 1: dwRate = 48000; break;
703 	case 2: dwRate = 32000; break;
704 	default: dwRate = 0; break;
705 	}
706 
707 	return dwRate;
708 }
709 
snd_ali_enable_spdif_in(struct snd_ali * codec)710 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
711 {
712 	unsigned int dwVal;
713 
714 	dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
715 	dwVal |= ALI_SPDIF_IN_SUPPORT;
716 	outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
717 
718 	dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
719 	dwVal |= 0x02;
720 	outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
721 
722 	snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
723 }
724 
snd_ali_disable_spdif_in(struct snd_ali * codec)725 static void snd_ali_disable_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 	snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
734 }
735 
736 
snd_ali_set_spdif_out_rate(struct snd_ali * codec,unsigned int rate)737 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
738 {
739 	unsigned char  bVal;
740 	unsigned int  dwRate;
741 
742 	switch (rate) {
743 	case 32000: dwRate = 0x300; break;
744 	case 48000: dwRate = 0x200; break;
745 	default: dwRate = 0; break;
746 	}
747 
748 	bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
749 	bVal &= (unsigned char)(~(1<<6));
750 
751 	bVal |= 0x80;		/* select right */
752 	outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
753 	outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
754 
755 	bVal &= ~0x80;	/* select left */
756 	outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
757 	outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
758 }
759 
snd_ali_enable_spdif_out(struct snd_ali * codec)760 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
761 {
762 	unsigned short wVal;
763 	unsigned char bVal;
764         struct pci_dev *pci_dev;
765 
766         pci_dev = codec->pci_m1533;
767         if (pci_dev == NULL)
768                 return;
769         pci_read_config_byte(pci_dev, 0x61, &bVal);
770         bVal |= 0x40;
771         pci_write_config_byte(pci_dev, 0x61, bVal);
772         pci_read_config_byte(pci_dev, 0x7d, &bVal);
773         bVal |= 0x01;
774         pci_write_config_byte(pci_dev, 0x7d, bVal);
775 
776         pci_read_config_byte(pci_dev, 0x7e, &bVal);
777         bVal &= (~0x20);
778         bVal |= 0x10;
779         pci_write_config_byte(pci_dev, 0x7e, bVal);
780 
781 	bVal = inb(ALI_REG(codec, ALI_SCTRL));
782 	outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
783 
784 	bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
785 	outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
786 
787 	wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
788 	wVal |= ALI_SPDIF_OUT_SEL_PCM;
789 	outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
790 	snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
791 }
792 
snd_ali_enable_spdif_chnout(struct snd_ali * codec)793 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
794 {
795 	unsigned short wVal;
796 
797 	wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
798    	wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
799    	outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
800 /*
801 	wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
802 	if (flag & ALI_SPDIF_OUT_NON_PCM)
803    		wVal |= 0x0002;
804 	else
805 		wVal &= (~0x0002);
806    	outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
807 */
808 	snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
809 }
810 
snd_ali_disable_spdif_chnout(struct snd_ali * codec)811 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
812 {
813 	unsigned short wVal;
814 
815   	wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
816    	wVal |= ALI_SPDIF_OUT_SEL_PCM;
817    	outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
818 
819 	snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
820 }
821 
snd_ali_disable_spdif_out(struct snd_ali * codec)822 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
823 {
824 	unsigned char  bVal;
825 
826 	bVal = inb(ALI_REG(codec, ALI_SCTRL));
827 	outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
828 
829 	snd_ali_disable_spdif_chnout(codec);
830 }
831 
snd_ali_update_ptr(struct snd_ali * codec,int channel)832 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
833 {
834 	struct snd_ali_voice *pvoice;
835 	struct snd_ali_channel_control *pchregs;
836 	unsigned int old, mask;
837 
838 	pchregs = &(codec->chregs);
839 
840 	/* check if interrupt occurred for channel */
841 	old  = pchregs->data.aint;
842 	mask = 1U << (channel & 0x1f);
843 
844 	if (!(old & mask))
845 		return;
846 
847 	pvoice = &codec->synth.voices[channel];
848 
849 	udelay(100);
850 	spin_lock(&codec->reg_lock);
851 
852 	if (pvoice->pcm && pvoice->substream) {
853 		/* pcm interrupt */
854 		if (pvoice->running) {
855 			dev_dbg(codec->card->dev,
856 				"update_ptr: cso=%4.4x cspf=%d.\n",
857 				inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2)),
858 				(inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask);
859 			spin_unlock(&codec->reg_lock);
860 			snd_pcm_period_elapsed(pvoice->substream);
861 			spin_lock(&codec->reg_lock);
862 		} else {
863 			snd_ali_stop_voice(codec, channel);
864 			snd_ali_disable_voice_irq(codec, channel);
865 		}
866 	} else if (codec->synth.voices[channel].synth) {
867 		/* synth interrupt */
868 	} else if (codec->synth.voices[channel].midi) {
869 		/* midi interrupt */
870 	} else {
871 		/* unknown interrupt */
872 		snd_ali_stop_voice(codec, channel);
873 		snd_ali_disable_voice_irq(codec, channel);
874 	}
875 	spin_unlock(&codec->reg_lock);
876 	outl(mask,ALI_REG(codec,pchregs->regs.aint));
877 	pchregs->data.aint = old & (~mask);
878 }
879 
snd_ali_card_interrupt(int irq,void * dev_id)880 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
881 {
882 	struct snd_ali 	*codec = dev_id;
883 	int channel;
884 	unsigned int audio_int;
885 	struct snd_ali_channel_control *pchregs;
886 
887 	if (codec == NULL || !codec->hw_initialized)
888 		return IRQ_NONE;
889 
890 	audio_int = inl(ALI_REG(codec, ALI_MISCINT));
891 	if (!audio_int)
892 		return IRQ_NONE;
893 
894 	pchregs = &(codec->chregs);
895 	if (audio_int & ADDRESS_IRQ) {
896 		/* get interrupt status for all channels */
897 		pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
898 		for (channel = 0; channel < ALI_CHANNELS; channel++)
899 			snd_ali_update_ptr(codec, channel);
900 	}
901 	outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
902 		ALI_REG(codec, ALI_MISCINT));
903 
904 	return IRQ_HANDLED;
905 }
906 
907 
snd_ali_alloc_voice(struct snd_ali * codec,int type,int rec,int channel)908 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
909 						 int type, int rec, int channel)
910 {
911 	struct snd_ali_voice *pvoice;
912 	int idx;
913 
914 	dev_dbg(codec->card->dev, "alloc_voice: type=%d rec=%d\n", type, rec);
915 
916 	spin_lock_irq(&codec->voice_alloc);
917 	if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
918 		idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
919 			snd_ali_find_free_channel(codec,rec);
920 		if (idx < 0) {
921 			dev_err(codec->card->dev, "ali_alloc_voice: err.\n");
922 			spin_unlock_irq(&codec->voice_alloc);
923 			return NULL;
924 		}
925 		pvoice = &(codec->synth.voices[idx]);
926 		pvoice->codec = codec;
927 		pvoice->use = 1;
928 		pvoice->pcm = 1;
929 		pvoice->mode = rec;
930 		spin_unlock_irq(&codec->voice_alloc);
931 		return pvoice;
932 	}
933 	spin_unlock_irq(&codec->voice_alloc);
934 	return NULL;
935 }
936 
937 
snd_ali_free_voice(struct snd_ali * codec,struct snd_ali_voice * pvoice)938 static void snd_ali_free_voice(struct snd_ali * codec,
939 			       struct snd_ali_voice *pvoice)
940 {
941 	void (*private_free)(void *);
942 	void *private_data;
943 
944 	dev_dbg(codec->card->dev, "free_voice: channel=%d\n", pvoice->number);
945 	if (!pvoice->use)
946 		return;
947 	snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
948 	spin_lock_irq(&codec->voice_alloc);
949 	private_free = pvoice->private_free;
950 	private_data = pvoice->private_data;
951 	pvoice->private_free = NULL;
952 	pvoice->private_data = NULL;
953 	if (pvoice->pcm)
954 		snd_ali_free_channel_pcm(codec, pvoice->number);
955 	pvoice->use = pvoice->pcm = pvoice->synth = 0;
956 	pvoice->substream = NULL;
957 	spin_unlock_irq(&codec->voice_alloc);
958 	if (private_free)
959 		private_free(private_data);
960 }
961 
962 
snd_ali_clear_voices(struct snd_ali * codec,unsigned int v_min,unsigned int v_max)963 static void snd_ali_clear_voices(struct snd_ali *codec,
964 				 unsigned int v_min,
965 				 unsigned int v_max)
966 {
967 	unsigned int i;
968 
969 	for (i = v_min; i <= v_max; i++) {
970 		snd_ali_stop_voice(codec, i);
971 		snd_ali_disable_voice_irq(codec, i);
972 	}
973 }
974 
snd_ali_write_voice_regs(struct snd_ali * codec,unsigned int Channel,unsigned int LBA,unsigned int CSO,unsigned int ESO,unsigned int DELTA,unsigned int ALPHA_FMS,unsigned int GVSEL,unsigned int PAN,unsigned int VOL,unsigned int CTRL,unsigned int EC)975 static void snd_ali_write_voice_regs(struct snd_ali *codec,
976 			 unsigned int Channel,
977 			 unsigned int LBA,
978 			 unsigned int CSO,
979 			 unsigned int ESO,
980 			 unsigned int DELTA,
981 			 unsigned int ALPHA_FMS,
982 			 unsigned int GVSEL,
983 			 unsigned int PAN,
984 			 unsigned int VOL,
985 			 unsigned int CTRL,
986 			 unsigned int EC)
987 {
988 	unsigned int ctlcmds[4];
989 
990 	outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
991 
992 	ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
993 	ctlcmds[1] =  LBA;
994 	ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
995 	ctlcmds[3] =  (GVSEL << 31) |
996 		      ((PAN & 0x0000007f) << 24) |
997 		      ((VOL & 0x000000ff) << 16) |
998 		      ((CTRL & 0x0000000f) << 12) |
999 		      (EC & 0x00000fff);
1000 
1001 	outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1002 
1003 	outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1004 	outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1005 	outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1006 	outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1007 
1008 	outl(0x30000000, ALI_REG(codec, ALI_EBUF1));	/* Still Mode */
1009 	outl(0x30000000, ALI_REG(codec, ALI_EBUF2));	/* Still Mode */
1010 }
1011 
snd_ali_convert_rate(unsigned int rate,int rec)1012 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1013 {
1014 	unsigned int delta;
1015 
1016 	if (rate < 4000)
1017 		rate = 4000;
1018 	if (rate > 48000)
1019 		rate = 48000;
1020 
1021 	if (rec) {
1022 		if (rate == 44100)
1023 			delta = 0x116a;
1024 		else if (rate == 8000)
1025 			delta = 0x6000;
1026 		else if (rate == 48000)
1027 			delta = 0x1000;
1028 		else
1029 			delta = ((48000 << 12) / rate) & 0x0000ffff;
1030 	} else {
1031 		if (rate == 44100)
1032 			delta = 0xeb3;
1033 		else if (rate == 8000)
1034 			delta = 0x2ab;
1035 		else if (rate == 48000)
1036 			delta = 0x1000;
1037 		else
1038 			delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1039 	}
1040 
1041 	return delta;
1042 }
1043 
snd_ali_control_mode(struct snd_pcm_substream * substream)1044 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1045 {
1046 	unsigned int CTRL;
1047 	struct snd_pcm_runtime *runtime = substream->runtime;
1048 
1049 	/* set ctrl mode
1050 	   CTRL default: 8-bit (unsigned) mono, loop mode enabled
1051 	 */
1052 	CTRL = 0x00000001;
1053 	if (snd_pcm_format_width(runtime->format) == 16)
1054 		CTRL |= 0x00000008;	/* 16-bit data */
1055 	if (!snd_pcm_format_unsigned(runtime->format))
1056 		CTRL |= 0x00000002;	/* signed data */
1057 	if (runtime->channels > 1)
1058 		CTRL |= 0x00000004;	/* stereo data */
1059 	return CTRL;
1060 }
1061 
1062 /*
1063  *  PCM part
1064  */
1065 
snd_ali_trigger(struct snd_pcm_substream * substream,int cmd)1066 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1067 			       int cmd)
1068 
1069 {
1070 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1071 	struct snd_pcm_substream *s;
1072 	unsigned int what, whati;
1073 	struct snd_ali_voice *pvoice, *evoice;
1074 	unsigned int val;
1075 	int do_start;
1076 
1077 	switch (cmd) {
1078 	case SNDRV_PCM_TRIGGER_START:
1079 	case SNDRV_PCM_TRIGGER_RESUME:
1080 		do_start = 1;
1081 		break;
1082 	case SNDRV_PCM_TRIGGER_STOP:
1083 	case SNDRV_PCM_TRIGGER_SUSPEND:
1084 		do_start = 0;
1085 		break;
1086 	default:
1087 		return -EINVAL;
1088 	}
1089 
1090 	what = whati = 0;
1091 	snd_pcm_group_for_each_entry(s, substream) {
1092 		if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1093 			pvoice = s->runtime->private_data;
1094 			evoice = pvoice->extra;
1095 			what |= 1 << (pvoice->number & 0x1f);
1096 			if (evoice == NULL)
1097 				whati |= 1 << (pvoice->number & 0x1f);
1098 			else {
1099 				whati |= 1 << (evoice->number & 0x1f);
1100 				what |= 1 << (evoice->number & 0x1f);
1101 			}
1102 			if (do_start) {
1103 				pvoice->running = 1;
1104 				if (evoice != NULL)
1105 					evoice->running = 1;
1106 			} else {
1107 				pvoice->running = 0;
1108 				if (evoice != NULL)
1109 					evoice->running = 0;
1110 			}
1111 			snd_pcm_trigger_done(s, substream);
1112 		}
1113 	}
1114 	spin_lock(&codec->reg_lock);
1115 	if (!do_start)
1116 		outl(what, ALI_REG(codec, ALI_STOP));
1117 	val = inl(ALI_REG(codec, ALI_AINTEN));
1118 	if (do_start)
1119 		val |= whati;
1120 	else
1121 		val &= ~whati;
1122 	outl(val, ALI_REG(codec, ALI_AINTEN));
1123 	if (do_start)
1124 		outl(what, ALI_REG(codec, ALI_START));
1125 	dev_dbg(codec->card->dev, "trigger: what=%xh whati=%xh\n", what, whati);
1126 	spin_unlock(&codec->reg_lock);
1127 
1128 	return 0;
1129 }
1130 
snd_ali_playback_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)1131 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1132 				      struct snd_pcm_hw_params *hw_params)
1133 {
1134 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1135 	struct snd_pcm_runtime *runtime = substream->runtime;
1136 	struct snd_ali_voice *pvoice = runtime->private_data;
1137 	struct snd_ali_voice *evoice = pvoice->extra;
1138 
1139 	/* voice management */
1140 
1141 	if (params_buffer_size(hw_params) / 2 !=
1142 	    params_period_size(hw_params)) {
1143 		if (!evoice) {
1144 			evoice = snd_ali_alloc_voice(codec,
1145 						     SNDRV_ALI_VOICE_TYPE_PCM,
1146 						     0, -1);
1147 			if (!evoice)
1148 				return -ENOMEM;
1149 			pvoice->extra = evoice;
1150 			evoice->substream = substream;
1151 		}
1152 	} else {
1153 		if (evoice) {
1154 			snd_ali_free_voice(codec, evoice);
1155 			pvoice->extra = evoice = NULL;
1156 		}
1157 	}
1158 
1159 	return 0;
1160 }
1161 
snd_ali_playback_hw_free(struct snd_pcm_substream * substream)1162 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1163 {
1164 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1165 	struct snd_pcm_runtime *runtime = substream->runtime;
1166 	struct snd_ali_voice *pvoice = runtime->private_data;
1167 	struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1168 
1169 	if (evoice) {
1170 		snd_ali_free_voice(codec, evoice);
1171 		pvoice->extra = NULL;
1172 	}
1173 	return 0;
1174 }
1175 
snd_ali_playback_prepare(struct snd_pcm_substream * substream)1176 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1177 {
1178 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1179 	struct snd_pcm_runtime *runtime = substream->runtime;
1180 	struct snd_ali_voice *pvoice = runtime->private_data;
1181 	struct snd_ali_voice *evoice = pvoice->extra;
1182 
1183 	unsigned int LBA;
1184 	unsigned int Delta;
1185 	unsigned int ESO;
1186 	unsigned int CTRL;
1187 	unsigned int GVSEL;
1188 	unsigned int PAN;
1189 	unsigned int VOL;
1190 	unsigned int EC;
1191 
1192 	dev_dbg(codec->card->dev, "playback_prepare ...\n");
1193 
1194 	spin_lock_irq(&codec->reg_lock);
1195 
1196 	/* set Delta (rate) value */
1197 	Delta = snd_ali_convert_rate(runtime->rate, 0);
1198 
1199 	if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1200 	    pvoice->number == ALI_PCM_IN_CHANNEL)
1201 		snd_ali_disable_special_channel(codec, pvoice->number);
1202 	else if (codec->spdif_support &&
1203 		 (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1204 		  ALI_SPDIF_OUT_CH_ENABLE)
1205 		 && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1206 		snd_ali_set_spdif_out_rate(codec, runtime->rate);
1207 		Delta = 0x1000;
1208 	}
1209 
1210 	/* set Loop Back Address */
1211 	LBA = runtime->dma_addr;
1212 
1213 	/* set interrupt count size */
1214 	pvoice->count = runtime->period_size;
1215 
1216 	/* set target ESO for channel */
1217 	pvoice->eso = runtime->buffer_size;
1218 
1219 	dev_dbg(codec->card->dev, "playback_prepare: eso=%xh count=%xh\n",
1220 		       pvoice->eso, pvoice->count);
1221 
1222 	/* set ESO to capture first MIDLP interrupt */
1223 	ESO = pvoice->eso -1;
1224 	/* set ctrl mode */
1225 	CTRL = snd_ali_control_mode(substream);
1226 
1227 	GVSEL = 1;
1228 	PAN = 0;
1229 	VOL = 0;
1230 	EC = 0;
1231 	dev_dbg(codec->card->dev, "playback_prepare:\n");
1232 	dev_dbg(codec->card->dev,
1233 		"ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1234 		       pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1235 	snd_ali_write_voice_regs(codec,
1236 				 pvoice->number,
1237 				 LBA,
1238 				 0,	/* cso */
1239 				 ESO,
1240 				 Delta,
1241 				 0,	/* alpha */
1242 				 GVSEL,
1243 				 PAN,
1244 				 VOL,
1245 				 CTRL,
1246 				 EC);
1247 	if (evoice) {
1248 		evoice->count = pvoice->count;
1249 		evoice->eso = pvoice->count << 1;
1250 		ESO = evoice->eso - 1;
1251 		snd_ali_write_voice_regs(codec,
1252 					 evoice->number,
1253 					 LBA,
1254 					 0,	/* cso */
1255 					 ESO,
1256 					 Delta,
1257 					 0,	/* alpha */
1258 					 GVSEL,
1259 					 0x7f,
1260 					 0x3ff,
1261 					 CTRL,
1262 					 EC);
1263 	}
1264 	spin_unlock_irq(&codec->reg_lock);
1265 	return 0;
1266 }
1267 
1268 
snd_ali_prepare(struct snd_pcm_substream * substream)1269 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1270 {
1271 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1272 	struct snd_pcm_runtime *runtime = substream->runtime;
1273 	struct snd_ali_voice *pvoice = runtime->private_data;
1274 	unsigned int LBA;
1275 	unsigned int Delta;
1276 	unsigned int ESO;
1277 	unsigned int CTRL;
1278 	unsigned int GVSEL;
1279 	unsigned int PAN;
1280 	unsigned int VOL;
1281 	unsigned int EC;
1282 	u8	 bValue;
1283 
1284 	spin_lock_irq(&codec->reg_lock);
1285 
1286 	dev_dbg(codec->card->dev, "ali_prepare...\n");
1287 
1288 	snd_ali_enable_special_channel(codec,pvoice->number);
1289 
1290 	Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1291 		 pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1292 		0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1293 
1294 	/* Prepare capture intr channel */
1295 	if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1296 
1297 		unsigned int rate;
1298 
1299 		spin_unlock_irq(&codec->reg_lock);
1300 		if (codec->revision != ALI_5451_V02)
1301 			return -1;
1302 
1303 		rate = snd_ali_get_spdif_in_rate(codec);
1304 		if (rate == 0) {
1305 			dev_warn(codec->card->dev,
1306 				 "ali_capture_prepare: spdif rate detect err!\n");
1307 			rate = 48000;
1308 		}
1309 		spin_lock_irq(&codec->reg_lock);
1310 		bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1311 		if (bValue & 0x10) {
1312 			outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1313 			dev_warn(codec->card->dev,
1314 				 "clear SPDIF parity error flag.\n");
1315 		}
1316 
1317 		if (rate != 48000)
1318 			Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1319 	}
1320 
1321 	/* set target ESO for channel  */
1322 	pvoice->eso = runtime->buffer_size;
1323 
1324 	/* set interrupt count size  */
1325 	pvoice->count = runtime->period_size;
1326 
1327 	/* set Loop Back Address  */
1328 	LBA = runtime->dma_addr;
1329 
1330 	/* set ESO to capture first MIDLP interrupt  */
1331 	ESO = pvoice->eso - 1;
1332 	CTRL = snd_ali_control_mode(substream);
1333 	GVSEL = 0;
1334 	PAN = 0x00;
1335 	VOL = 0x00;
1336 	EC = 0;
1337 
1338 	snd_ali_write_voice_regs(    codec,
1339 				     pvoice->number,
1340 				     LBA,
1341 				     0,	/* cso */
1342 				     ESO,
1343 				     Delta,
1344 				     0,	/* alpha */
1345 				     GVSEL,
1346 				     PAN,
1347 				     VOL,
1348 				     CTRL,
1349 				     EC);
1350 
1351 	spin_unlock_irq(&codec->reg_lock);
1352 
1353 	return 0;
1354 }
1355 
1356 
1357 static snd_pcm_uframes_t
snd_ali_playback_pointer(struct snd_pcm_substream * substream)1358 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1359 {
1360 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1361 	struct snd_pcm_runtime *runtime = substream->runtime;
1362 	struct snd_ali_voice *pvoice = runtime->private_data;
1363 	unsigned int cso;
1364 
1365 	spin_lock(&codec->reg_lock);
1366 	if (!pvoice->running) {
1367 		spin_unlock(&codec->reg_lock);
1368 		return 0;
1369 	}
1370 	outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1371 	cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1372 	spin_unlock(&codec->reg_lock);
1373 	dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
1374 
1375 	cso %= runtime->buffer_size;
1376 	return cso;
1377 }
1378 
1379 
snd_ali_pointer(struct snd_pcm_substream * substream)1380 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1381 {
1382 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1383 	struct snd_pcm_runtime *runtime = substream->runtime;
1384 	struct snd_ali_voice *pvoice = runtime->private_data;
1385 	unsigned int cso;
1386 
1387 	spin_lock(&codec->reg_lock);
1388 	if (!pvoice->running) {
1389 		spin_unlock(&codec->reg_lock);
1390 		return 0;
1391 	}
1392 	outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1393 	cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1394 	spin_unlock(&codec->reg_lock);
1395 
1396 	cso %= runtime->buffer_size;
1397 	return cso;
1398 }
1399 
1400 static const struct snd_pcm_hardware snd_ali_playback =
1401 {
1402 	.info =		(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1403 			 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1404 			 SNDRV_PCM_INFO_MMAP_VALID |
1405 			 SNDRV_PCM_INFO_RESUME |
1406 			 SNDRV_PCM_INFO_SYNC_START),
1407 	.formats =	(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1408 			 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1409 	.rates =	SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1410 	.rate_min =		4000,
1411 	.rate_max =		48000,
1412 	.channels_min =		1,
1413 	.channels_max =		2,
1414 	.buffer_bytes_max =	(256*1024),
1415 	.period_bytes_min =	64,
1416 	.period_bytes_max =	(256*1024),
1417 	.periods_min =		1,
1418 	.periods_max =		1024,
1419 	.fifo_size =		0,
1420 };
1421 
1422 /*
1423  *  Capture support device description
1424  */
1425 
1426 static const struct snd_pcm_hardware snd_ali_capture =
1427 {
1428 	.info =		(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1429 			 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1430 			 SNDRV_PCM_INFO_MMAP_VALID |
1431 			 SNDRV_PCM_INFO_RESUME |
1432 			 SNDRV_PCM_INFO_SYNC_START),
1433 	.formats =	(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1434 			 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1435 	.rates =	SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1436 	.rate_min =		4000,
1437 	.rate_max =		48000,
1438 	.channels_min =		1,
1439 	.channels_max =		2,
1440 	.buffer_bytes_max =	(128*1024),
1441 	.period_bytes_min =	64,
1442 	.period_bytes_max =	(128*1024),
1443 	.periods_min =		1,
1444 	.periods_max =		1024,
1445 	.fifo_size =		0,
1446 };
1447 
snd_ali_pcm_free_substream(struct snd_pcm_runtime * runtime)1448 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1449 {
1450 	struct snd_ali_voice *pvoice = runtime->private_data;
1451 
1452 	if (pvoice)
1453 		snd_ali_free_voice(pvoice->codec, pvoice);
1454 }
1455 
snd_ali_open(struct snd_pcm_substream * substream,int rec,int channel,const struct snd_pcm_hardware * phw)1456 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1457 			int channel, const struct snd_pcm_hardware *phw)
1458 {
1459 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1460 	struct snd_pcm_runtime *runtime = substream->runtime;
1461 	struct snd_ali_voice *pvoice;
1462 
1463 	pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1464 				     channel);
1465 	if (!pvoice)
1466 		return -EAGAIN;
1467 
1468 	pvoice->substream = substream;
1469 	runtime->private_data = pvoice;
1470 	runtime->private_free = snd_ali_pcm_free_substream;
1471 
1472 	runtime->hw = *phw;
1473 	snd_pcm_set_sync(substream);
1474 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1475 				     0, 64*1024);
1476 	return 0;
1477 }
1478 
snd_ali_playback_open(struct snd_pcm_substream * substream)1479 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1480 {
1481 	return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1482 }
1483 
snd_ali_capture_open(struct snd_pcm_substream * substream)1484 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1485 {
1486 	return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1487 }
1488 
snd_ali_playback_close(struct snd_pcm_substream * substream)1489 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1490 {
1491 	return 0;
1492 }
1493 
snd_ali_close(struct snd_pcm_substream * substream)1494 static int snd_ali_close(struct snd_pcm_substream *substream)
1495 {
1496 	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1497 	struct snd_ali_voice *pvoice = substream->runtime->private_data;
1498 
1499 	snd_ali_disable_special_channel(codec,pvoice->number);
1500 
1501 	return 0;
1502 }
1503 
1504 static const struct snd_pcm_ops snd_ali_playback_ops = {
1505 	.open =		snd_ali_playback_open,
1506 	.close =	snd_ali_playback_close,
1507 	.hw_params =	snd_ali_playback_hw_params,
1508 	.hw_free =	snd_ali_playback_hw_free,
1509 	.prepare =	snd_ali_playback_prepare,
1510 	.trigger =	snd_ali_trigger,
1511 	.pointer =	snd_ali_playback_pointer,
1512 };
1513 
1514 static const struct snd_pcm_ops snd_ali_capture_ops = {
1515 	.open =		snd_ali_capture_open,
1516 	.close =	snd_ali_close,
1517 	.prepare =	snd_ali_prepare,
1518 	.trigger =	snd_ali_trigger,
1519 	.pointer =	snd_ali_pointer,
1520 };
1521 
1522 /*
1523  * Modem PCM
1524  */
1525 
snd_ali_modem_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)1526 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1527 				 struct snd_pcm_hw_params *hw_params)
1528 {
1529 	struct snd_ali *chip = snd_pcm_substream_chip(substream);
1530 	unsigned int modem_num = chip->num_of_codecs - 1;
1531 	snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1532 		       params_rate(hw_params));
1533 	snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1534 	return 0;
1535 }
1536 
1537 static const struct snd_pcm_hardware snd_ali_modem =
1538 {
1539 	.info =		(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1540 			 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1541 			 SNDRV_PCM_INFO_MMAP_VALID |
1542 			 SNDRV_PCM_INFO_RESUME |
1543 			 SNDRV_PCM_INFO_SYNC_START),
1544 	.formats =	SNDRV_PCM_FMTBIT_S16_LE,
1545 	.rates =	(SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1546 			 SNDRV_PCM_RATE_16000),
1547 	.rate_min =		8000,
1548 	.rate_max =		16000,
1549 	.channels_min =		1,
1550 	.channels_max =		1,
1551 	.buffer_bytes_max =	(256*1024),
1552 	.period_bytes_min =	64,
1553 	.period_bytes_max =	(256*1024),
1554 	.periods_min =		1,
1555 	.periods_max =		1024,
1556 	.fifo_size =		0,
1557 };
1558 
snd_ali_modem_open(struct snd_pcm_substream * substream,int rec,int channel)1559 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1560 			      int channel)
1561 {
1562 	static const unsigned int rates[] = {8000, 9600, 12000, 16000};
1563 	static const struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1564 		.count = ARRAY_SIZE(rates),
1565 		.list = rates,
1566 		.mask = 0,
1567 	};
1568 	int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1569 
1570 	if (err)
1571 		return err;
1572 	return snd_pcm_hw_constraint_list(substream->runtime, 0,
1573 			SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1574 }
1575 
snd_ali_modem_playback_open(struct snd_pcm_substream * substream)1576 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1577 {
1578 	return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1579 }
1580 
snd_ali_modem_capture_open(struct snd_pcm_substream * substream)1581 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1582 {
1583 	return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1584 }
1585 
1586 static const struct snd_pcm_ops snd_ali_modem_playback_ops = {
1587 	.open =		snd_ali_modem_playback_open,
1588 	.close =	snd_ali_close,
1589 	.hw_params =	snd_ali_modem_hw_params,
1590 	.prepare =	snd_ali_prepare,
1591 	.trigger =	snd_ali_trigger,
1592 	.pointer =	snd_ali_pointer,
1593 };
1594 
1595 static const struct snd_pcm_ops snd_ali_modem_capture_ops = {
1596 	.open =		snd_ali_modem_capture_open,
1597 	.close =	snd_ali_close,
1598 	.hw_params =	snd_ali_modem_hw_params,
1599 	.prepare =	snd_ali_prepare,
1600 	.trigger =	snd_ali_trigger,
1601 	.pointer =	snd_ali_pointer,
1602 };
1603 
1604 
1605 struct ali_pcm_description {
1606 	char *name;
1607 	unsigned int playback_num;
1608 	unsigned int capture_num;
1609 	const struct snd_pcm_ops *playback_ops;
1610 	const struct snd_pcm_ops *capture_ops;
1611 	unsigned short class;
1612 };
1613 
1614 
snd_ali_pcm_free(struct snd_pcm * pcm)1615 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1616 {
1617 	struct snd_ali *codec = pcm->private_data;
1618 	codec->pcm[pcm->device] = NULL;
1619 }
1620 
1621 
snd_ali_pcm(struct snd_ali * codec,int device,struct ali_pcm_description * desc)1622 static int snd_ali_pcm(struct snd_ali *codec, int device,
1623 		       struct ali_pcm_description *desc)
1624 {
1625 	struct snd_pcm *pcm;
1626 	int err;
1627 
1628 	err = snd_pcm_new(codec->card, desc->name, device,
1629 			  desc->playback_num, desc->capture_num, &pcm);
1630 	if (err < 0) {
1631 		dev_err(codec->card->dev,
1632 			"snd_ali_pcm: err called snd_pcm_new.\n");
1633 		return err;
1634 	}
1635 	pcm->private_data = codec;
1636 	pcm->private_free = snd_ali_pcm_free;
1637 	if (desc->playback_ops)
1638 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1639 				desc->playback_ops);
1640 	if (desc->capture_ops)
1641 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1642 				desc->capture_ops);
1643 
1644 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1645 				       &codec->pci->dev, 64*1024, 128*1024);
1646 
1647 	pcm->info_flags = 0;
1648 	pcm->dev_class = desc->class;
1649 	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1650 	strcpy(pcm->name, desc->name);
1651 	codec->pcm[0] = pcm;
1652 	return 0;
1653 }
1654 
1655 static struct ali_pcm_description ali_pcms[] = {
1656 	{ .name = "ALI 5451",
1657 	  .playback_num = ALI_CHANNELS,
1658 	  .capture_num = 1,
1659 	  .playback_ops = &snd_ali_playback_ops,
1660 	  .capture_ops = &snd_ali_capture_ops
1661 	},
1662 	{ .name = "ALI 5451 modem",
1663 	  .playback_num = 1,
1664 	  .capture_num = 1,
1665 	  .playback_ops = &snd_ali_modem_playback_ops,
1666 	  .capture_ops = &snd_ali_modem_capture_ops,
1667 	  .class = SNDRV_PCM_CLASS_MODEM
1668 	}
1669 };
1670 
snd_ali_build_pcms(struct snd_ali * codec)1671 static int snd_ali_build_pcms(struct snd_ali *codec)
1672 {
1673 	int i, err;
1674 	for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1675 		err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1676 		if (err < 0)
1677 			return err;
1678 	}
1679 	return 0;
1680 }
1681 
1682 
1683 #define ALI5451_SPDIF(xname, xindex, value) \
1684 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1685 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1686 .put = snd_ali5451_spdif_put, .private_value = value}
1687 
1688 #define snd_ali5451_spdif_info		snd_ctl_boolean_mono_info
1689 
snd_ali5451_spdif_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1690 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1691 				 struct snd_ctl_elem_value *ucontrol)
1692 {
1693 	struct snd_ali *codec = kcontrol->private_data;
1694 	unsigned int spdif_enable;
1695 
1696 	spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1697 
1698 	spin_lock_irq(&codec->reg_lock);
1699 	switch (kcontrol->private_value) {
1700 	case 0:
1701 		spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1702 		break;
1703 	case 1:
1704 		spdif_enable = ((codec->spdif_mask & 0x02) &&
1705 			  (codec->spdif_mask & 0x04)) ? 1 : 0;
1706 		break;
1707 	case 2:
1708 		spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1709 		break;
1710 	default:
1711 		break;
1712 	}
1713 	ucontrol->value.integer.value[0] = spdif_enable;
1714 	spin_unlock_irq(&codec->reg_lock);
1715 	return 0;
1716 }
1717 
snd_ali5451_spdif_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1718 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1719 				 struct snd_ctl_elem_value *ucontrol)
1720 {
1721 	struct snd_ali *codec = kcontrol->private_data;
1722 	unsigned int change = 0, spdif_enable = 0;
1723 
1724 	spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1725 
1726 	spin_lock_irq(&codec->reg_lock);
1727 	switch (kcontrol->private_value) {
1728 	case 0:
1729 		change = (codec->spdif_mask & 0x02) ? 1 : 0;
1730 		change = change ^ spdif_enable;
1731 		if (change) {
1732 			if (spdif_enable) {
1733 				codec->spdif_mask |= 0x02;
1734 				snd_ali_enable_spdif_out(codec);
1735 			} else {
1736 				codec->spdif_mask &= ~(0x02);
1737 				codec->spdif_mask &= ~(0x04);
1738 				snd_ali_disable_spdif_out(codec);
1739 			}
1740 		}
1741 		break;
1742 	case 1:
1743 		change = (codec->spdif_mask & 0x04) ? 1 : 0;
1744 		change = change ^ spdif_enable;
1745 		if (change && (codec->spdif_mask & 0x02)) {
1746 			if (spdif_enable) {
1747 				codec->spdif_mask |= 0x04;
1748 				snd_ali_enable_spdif_chnout(codec);
1749 			} else {
1750 				codec->spdif_mask &= ~(0x04);
1751 				snd_ali_disable_spdif_chnout(codec);
1752 			}
1753 		}
1754 		break;
1755 	case 2:
1756 		change = (codec->spdif_mask & 0x01) ? 1 : 0;
1757 		change = change ^ spdif_enable;
1758 		if (change) {
1759 			if (spdif_enable) {
1760 				codec->spdif_mask |= 0x01;
1761 				snd_ali_enable_spdif_in(codec);
1762 			} else {
1763 				codec->spdif_mask &= ~(0x01);
1764 				snd_ali_disable_spdif_in(codec);
1765 			}
1766 		}
1767 		break;
1768 	default:
1769 		break;
1770 	}
1771 	spin_unlock_irq(&codec->reg_lock);
1772 
1773 	return change;
1774 }
1775 
1776 static const struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1777 	/* spdif aplayback switch */
1778 	/* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1779 	ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1780 	/* spdif out to spdif channel */
1781 	ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1782 	/* spdif in from spdif channel */
1783 	ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1784 };
1785 
snd_ali_mixer(struct snd_ali * codec)1786 static int snd_ali_mixer(struct snd_ali *codec)
1787 {
1788 	struct snd_ac97_template ac97;
1789 	unsigned int idx;
1790 	int i, err;
1791 	static const struct snd_ac97_bus_ops ops = {
1792 		.write = snd_ali_codec_write,
1793 		.read = snd_ali_codec_read,
1794 	};
1795 
1796 	err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1797 	if (err < 0)
1798 		return err;
1799 
1800 	memset(&ac97, 0, sizeof(ac97));
1801 	ac97.private_data = codec;
1802 
1803 	for (i = 0; i < codec->num_of_codecs; i++) {
1804 		ac97.num = i;
1805 		err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1806 		if (err < 0) {
1807 			dev_err(codec->card->dev,
1808 				   "ali mixer %d creating error.\n", i);
1809 			if (i == 0)
1810 				return err;
1811 			codec->num_of_codecs = 1;
1812 			break;
1813 		}
1814 	}
1815 
1816 	if (codec->spdif_support) {
1817 		for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1818 			err = snd_ctl_add(codec->card,
1819 					  snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1820 			if (err < 0)
1821 				return err;
1822 		}
1823 	}
1824 	return 0;
1825 }
1826 
1827 #ifdef CONFIG_PM_SLEEP
ali_suspend(struct device * dev)1828 static int ali_suspend(struct device *dev)
1829 {
1830 	struct snd_card *card = dev_get_drvdata(dev);
1831 	struct snd_ali *chip = card->private_data;
1832 	struct snd_ali_image *im;
1833 	int i, j;
1834 
1835 	im = chip->image;
1836 	if (!im)
1837 		return 0;
1838 
1839 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1840 	for (i = 0; i < chip->num_of_codecs; i++)
1841 		snd_ac97_suspend(chip->ac97[i]);
1842 
1843 	spin_lock_irq(&chip->reg_lock);
1844 
1845 	im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1846 	/* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1847 	im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1848 
1849 	/* disable all IRQ bits */
1850 	outl(0, ALI_REG(chip, ALI_MISCINT));
1851 
1852 	for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1853 		if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1854 			continue;
1855 		im->regs[i] = inl(ALI_REG(chip, i*4));
1856 	}
1857 
1858 	for (i = 0; i < ALI_CHANNELS; i++) {
1859 		outb(i, ALI_REG(chip, ALI_GC_CIR));
1860 		for (j = 0; j < ALI_CHANNEL_REGS; j++)
1861 			im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1862 	}
1863 
1864 	/* stop all HW channel */
1865 	outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1866 
1867 	spin_unlock_irq(&chip->reg_lock);
1868 	return 0;
1869 }
1870 
ali_resume(struct device * dev)1871 static int ali_resume(struct device *dev)
1872 {
1873 	struct snd_card *card = dev_get_drvdata(dev);
1874 	struct snd_ali *chip = card->private_data;
1875 	struct snd_ali_image *im;
1876 	int i, j;
1877 
1878 	im = chip->image;
1879 	if (!im)
1880 		return 0;
1881 
1882 	spin_lock_irq(&chip->reg_lock);
1883 
1884 	for (i = 0; i < ALI_CHANNELS; i++) {
1885 		outb(i, ALI_REG(chip, ALI_GC_CIR));
1886 		for (j = 0; j < ALI_CHANNEL_REGS; j++)
1887 			outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1888 	}
1889 
1890 	for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1891 		if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1892 		    (i*4 == ALI_START))
1893 			continue;
1894 		outl(im->regs[i], ALI_REG(chip, i*4));
1895 	}
1896 
1897 	/* start HW channel */
1898 	outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1899 	/* restore IRQ enable bits */
1900 	outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1901 
1902 	spin_unlock_irq(&chip->reg_lock);
1903 
1904 	for (i = 0 ; i < chip->num_of_codecs; i++)
1905 		snd_ac97_resume(chip->ac97[i]);
1906 
1907 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1908 	return 0;
1909 }
1910 
1911 static SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1912 #define ALI_PM_OPS	&ali_pm
1913 #else
1914 #define ALI_PM_OPS	NULL
1915 #endif /* CONFIG_PM_SLEEP */
1916 
snd_ali_free(struct snd_card * card)1917 static void snd_ali_free(struct snd_card *card)
1918 {
1919 	struct snd_ali *codec = card->private_data;
1920 
1921 	if (codec->hw_initialized)
1922 		snd_ali_disable_address_interrupt(codec);
1923 	pci_dev_put(codec->pci_m1533);
1924 	pci_dev_put(codec->pci_m7101);
1925 }
1926 
snd_ali_chip_init(struct snd_ali * codec)1927 static int snd_ali_chip_init(struct snd_ali *codec)
1928 {
1929 	unsigned int legacy;
1930 	unsigned char temp;
1931 	struct pci_dev *pci_dev;
1932 
1933 	dev_dbg(codec->card->dev, "chip initializing ...\n");
1934 
1935 	if (snd_ali_reset_5451(codec)) {
1936 		dev_err(codec->card->dev, "ali_chip_init: reset 5451 error.\n");
1937 		return -1;
1938 	}
1939 
1940 	if (codec->revision == ALI_5451_V02) {
1941         	pci_dev = codec->pci_m1533;
1942 		pci_read_config_byte(pci_dev, 0x59, &temp);
1943 		temp |= 0x80;
1944 		pci_write_config_byte(pci_dev, 0x59, temp);
1945 
1946 		pci_dev = codec->pci_m7101;
1947 		pci_read_config_byte(pci_dev, 0xb8, &temp);
1948 		temp |= 0x20;
1949 		pci_write_config_byte(pci_dev, 0xB8, temp);
1950 	}
1951 
1952 	pci_read_config_dword(codec->pci, 0x44, &legacy);
1953 	legacy &= 0xff00ff00;
1954 	legacy |= 0x000800aa;
1955 	pci_write_config_dword(codec->pci, 0x44, legacy);
1956 
1957 	outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
1958 	outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
1959 	outl(0xffffffff, ALI_REG(codec, ALI_AINT));
1960 	outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
1961 	outb(0x10, 	 ALI_REG(codec, ALI_MPUR2));
1962 
1963 	codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
1964 	codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
1965 						    AC97_EXTENDED_STATUS);
1966 	if (codec->spdif_support) {
1967 		snd_ali_enable_spdif_out(codec);
1968 		codec->spdif_mask = 0x00000002;
1969 	}
1970 
1971 	codec->num_of_codecs = 1;
1972 
1973 	/* secondary codec - modem */
1974 	if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
1975 		codec->num_of_codecs++;
1976 		outl(inl(ALI_REG(codec, ALI_SCTRL)) |
1977 		     (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
1978 		      ALI_SCTRL_LINE_OUT_EN),
1979 		     ALI_REG(codec, ALI_SCTRL));
1980 	}
1981 
1982 	dev_dbg(codec->card->dev, "chip initialize succeed.\n");
1983 	return 0;
1984 
1985 }
1986 
1987 /* proc for register dump */
snd_ali_proc_read(struct snd_info_entry * entry,struct snd_info_buffer * buf)1988 static void snd_ali_proc_read(struct snd_info_entry *entry,
1989 			      struct snd_info_buffer *buf)
1990 {
1991 	struct snd_ali *codec = entry->private_data;
1992 	int i;
1993 	for (i = 0; i < 256 ; i+= 4)
1994 		snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
1995 }
1996 
snd_ali_proc_init(struct snd_ali * codec)1997 static void snd_ali_proc_init(struct snd_ali *codec)
1998 {
1999 	snd_card_ro_proc_new(codec->card, "ali5451", codec, snd_ali_proc_read);
2000 }
2001 
snd_ali_resources(struct snd_ali * codec)2002 static int snd_ali_resources(struct snd_ali *codec)
2003 {
2004 	int err;
2005 
2006 	dev_dbg(codec->card->dev, "resources allocation ...\n");
2007 	err = pci_request_regions(codec->pci, "ALI 5451");
2008 	if (err < 0)
2009 		return err;
2010 	codec->port = pci_resource_start(codec->pci, 0);
2011 
2012 	if (devm_request_irq(&codec->pci->dev, codec->pci->irq,
2013 			     snd_ali_card_interrupt,
2014 			     IRQF_SHARED, KBUILD_MODNAME, codec)) {
2015 		dev_err(codec->card->dev, "Unable to request irq.\n");
2016 		return -EBUSY;
2017 	}
2018 	codec->irq = codec->pci->irq;
2019 	codec->card->sync_irq = codec->irq;
2020 	dev_dbg(codec->card->dev, "resources allocated.\n");
2021 	return 0;
2022 }
2023 
snd_ali_create(struct snd_card * card,struct pci_dev * pci,int pcm_streams,int spdif_support)2024 static int snd_ali_create(struct snd_card *card,
2025 			  struct pci_dev *pci,
2026 			  int pcm_streams,
2027 			  int spdif_support)
2028 {
2029 	struct snd_ali *codec = card->private_data;
2030 	int i, err;
2031 	unsigned short cmdw;
2032 
2033 	dev_dbg(card->dev, "creating ...\n");
2034 
2035 	/* enable PCI device */
2036 	err = pcim_enable_device(pci);
2037 	if (err < 0)
2038 		return err;
2039 	/* check, if we can restrict PCI DMA transfers to 31 bits */
2040 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(31))) {
2041 		dev_err(card->dev,
2042 			"architecture does not support 31bit PCI busmaster DMA\n");
2043 		return -ENXIO;
2044 	}
2045 
2046 	spin_lock_init(&codec->reg_lock);
2047 	spin_lock_init(&codec->voice_alloc);
2048 
2049 	codec->card = card;
2050 	codec->pci = pci;
2051 	codec->irq = -1;
2052 	codec->revision = pci->revision;
2053 	codec->spdif_support = spdif_support;
2054 
2055 	if (pcm_streams < 1)
2056 		pcm_streams = 1;
2057 	if (pcm_streams > 32)
2058 		pcm_streams = 32;
2059 
2060 	pci_set_master(pci);
2061 	pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2062 	if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2063 		cmdw |= PCI_COMMAND_IO;
2064 		pci_write_config_word(pci, PCI_COMMAND, cmdw);
2065 	}
2066 
2067 	if (snd_ali_resources(codec))
2068 		return -EBUSY;
2069 	card->private_free = snd_ali_free;
2070 
2071 	codec->synth.chmap = 0;
2072 	codec->synth.chcnt = 0;
2073 	codec->spdif_mask = 0;
2074 	codec->synth.synthcount = 0;
2075 
2076 	if (codec->revision == ALI_5451_V02)
2077 		codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2078 	else
2079 		codec->chregs.regs.ac97read = ALI_AC97_READ;
2080 	codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2081 
2082 	codec->chregs.regs.start  = ALI_START;
2083 	codec->chregs.regs.stop   = ALI_STOP;
2084 	codec->chregs.regs.aint   = ALI_AINT;
2085 	codec->chregs.regs.ainten = ALI_AINTEN;
2086 
2087 	codec->chregs.data.start  = 0x00;
2088 	codec->chregs.data.stop   = 0x00;
2089 	codec->chregs.data.aint   = 0x00;
2090 	codec->chregs.data.ainten = 0x00;
2091 
2092 	/* M1533: southbridge */
2093 	codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2094 	if (!codec->pci_m1533) {
2095 		dev_err(card->dev, "cannot find ALi 1533 chip.\n");
2096 		return -ENODEV;
2097 	}
2098 	/* M7101: power management */
2099 	codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2100 	if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2101 		dev_err(card->dev, "cannot find ALi 7101 chip.\n");
2102 		return -ENODEV;
2103 	}
2104 
2105 	/* initialise synth voices*/
2106 	for (i = 0; i < ALI_CHANNELS; i++)
2107 		codec->synth.voices[i].number = i;
2108 
2109 	err = snd_ali_chip_init(codec);
2110 	if (err < 0) {
2111 		dev_err(card->dev, "ali create: chip init error.\n");
2112 		return err;
2113 	}
2114 
2115 #ifdef CONFIG_PM_SLEEP
2116 	codec->image = devm_kmalloc(&pci->dev, sizeof(*codec->image),
2117 				    GFP_KERNEL);
2118 	if (!codec->image)
2119 		dev_warn(card->dev, "can't allocate apm buffer\n");
2120 #endif
2121 
2122 	snd_ali_enable_address_interrupt(codec);
2123 	codec->hw_initialized = 1;
2124 	return 0;
2125 }
2126 
__snd_ali_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)2127 static int __snd_ali_probe(struct pci_dev *pci,
2128 			   const struct pci_device_id *pci_id)
2129 {
2130 	struct snd_card *card;
2131 	struct snd_ali *codec;
2132 	int err;
2133 
2134 	dev_dbg(&pci->dev, "probe ...\n");
2135 
2136 	err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
2137 				sizeof(*codec), &card);
2138 	if (err < 0)
2139 		return err;
2140 	codec = card->private_data;
2141 
2142 	err = snd_ali_create(card, pci, pcm_channels, spdif);
2143 	if (err < 0)
2144 		return err;
2145 
2146 	dev_dbg(&pci->dev, "mixer building ...\n");
2147 	err = snd_ali_mixer(codec);
2148 	if (err < 0)
2149 		return err;
2150 
2151 	dev_dbg(&pci->dev, "pcm building ...\n");
2152 	err = snd_ali_build_pcms(codec);
2153 	if (err < 0)
2154 		return err;
2155 
2156 	snd_ali_proc_init(codec);
2157 
2158 	strcpy(card->driver, "ALI5451");
2159 	strcpy(card->shortname, "ALI 5451");
2160 
2161 	sprintf(card->longname, "%s at 0x%lx, irq %i",
2162 		card->shortname, codec->port, codec->irq);
2163 
2164 	dev_dbg(&pci->dev, "register card.\n");
2165 	err = snd_card_register(card);
2166 	if (err < 0)
2167 		return err;
2168 
2169 	pci_set_drvdata(pci, card);
2170 	return 0;
2171 }
2172 
snd_ali_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)2173 static int snd_ali_probe(struct pci_dev *pci,
2174 			 const struct pci_device_id *pci_id)
2175 {
2176 	return snd_card_free_on_error(&pci->dev, __snd_ali_probe(pci, pci_id));
2177 }
2178 
2179 static struct pci_driver ali5451_driver = {
2180 	.name = KBUILD_MODNAME,
2181 	.id_table = snd_ali_ids,
2182 	.probe = snd_ali_probe,
2183 	.driver = {
2184 		.pm = ALI_PM_OPS,
2185 	},
2186 };
2187 
2188 module_pci_driver(ali5451_driver);
2189