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ali5451.c

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linux-6.19.14/sound/pci/ali5451/ali5451.c C 
   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
  29MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
  30MODULE_DESCRIPTION("ALI M5451");
  31MODULE_LICENSE("GPL");
  32
  33static int index = SNDRV_DEFAULT_IDX1;	/* Index */
  34static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
  35static int pcm_channels = 32;
  36static bool spdif;
  37
  38module_param(index, int, 0444);
  39MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
  40module_param(id, charp, 0444);
  41MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
  42module_param(pcm_channels, int, 0444);
  43MODULE_PARM_DESC(pcm_channels, "PCM Channels");
  44module_param(spdif, bool, 0444);
  45MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
  46
  47/* just for backward compatibility */
  48static bool enable;
  49module_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
 146struct snd_ali;
 147struct snd_ali_voice;
 148
 149struct 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
 170struct 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
 194struct 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
 207struct snd_ali_image {
 208	u32 regs[ALI_GLOBAL_REGS];
 209	u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 210};
 211
 212
 213struct 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	struct snd_ali_image image;
 247};
 248
 249static const struct pci_device_id snd_ali_ids[] = {
 250	{PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
 251	{0, }
 252};
 253MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 254
 255static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
 256static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
 257static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
 258			       unsigned short);
 259
 260/*
 261 *  AC97 ACCESS
 262 */
 263
 264static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
 265					     unsigned int port)
 266{
 267	return (unsigned int)inl(ALI_REG(codec, port)); 
 268}
 269
 270static inline void snd_ali_5451_poke(struct snd_ali *codec,
 271				     unsigned int port,
 272				     unsigned int val)
 273{
 274	outl((unsigned int)val, ALI_REG(codec, port));
 275}
 276
 277static int snd_ali_codec_ready(struct snd_ali *codec,
 278			       unsigned int port)
 279{
 280	unsigned long end_time;
 281	unsigned int res;
 282	
 283	end_time = jiffies + msecs_to_jiffies(250);
 284
 285	for (;;) {
 286		res = snd_ali_5451_peek(codec,port);
 287		if (!(res & 0x8000))
 288			return 0;
 289		if (!time_after_eq(end_time, jiffies))
 290			break;
 291		schedule_timeout_uninterruptible(1);
 292	}
 293
 294	snd_ali_5451_poke(codec, port, res & ~0x8000);
 295	dev_dbg(codec->card->dev, "ali_codec_ready: codec is not ready.\n");
 296	return -EIO;
 297}
 298
 299static int snd_ali_stimer_ready(struct snd_ali *codec)
 300{
 301	unsigned long end_time;
 302	unsigned long dwChk1,dwChk2;
 303	
 304	dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 305	end_time = jiffies + msecs_to_jiffies(250);
 306
 307	for (;;) {
 308		dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 309		if (dwChk2 != dwChk1)
 310			return 0;
 311		if (!time_after_eq(end_time, jiffies))
 312			break;
 313		schedule_timeout_uninterruptible(1);
 314	}
 315
 316	dev_err(codec->card->dev, "ali_stimer_read: stimer is not ready.\n");
 317	return -EIO;
 318}
 319
 320static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
 321			       unsigned short reg,
 322			       unsigned short val)
 323{
 324	unsigned int dwVal;
 325	unsigned int port;
 326
 327	if (reg >= 0x80) {
 328		dev_err(codec->card->dev,
 329			"ali_codec_poke: reg(%xh) invalid.\n", reg);
 330		return;
 331	}
 332
 333	port = codec->chregs.regs.ac97write;
 334
 335	if (snd_ali_codec_ready(codec, port) < 0)
 336		return;
 337	if (snd_ali_stimer_ready(codec) < 0)
 338		return;
 339
 340	dwVal  = (unsigned int) (reg & 0xff);
 341	dwVal |= 0x8000 | (val << 16);
 342	if (secondary)
 343		dwVal |= 0x0080;
 344	if (codec->revision == ALI_5451_V02)
 345		dwVal |= 0x0100;
 346
 347	snd_ali_5451_poke(codec, port, dwVal);
 348
 349	return ;
 350}
 351
 352static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
 353					 int secondary,
 354					 unsigned short reg)
 355{
 356	unsigned int dwVal;
 357	unsigned int port;
 358
 359	if (reg >= 0x80) {
 360		dev_err(codec->card->dev,
 361			"ali_codec_peek: reg(%xh) invalid.\n", reg);
 362		return ~0;
 363	}
 364
 365	port = codec->chregs.regs.ac97read;
 366
 367	if (snd_ali_codec_ready(codec, port) < 0)
 368		return ~0;
 369	if (snd_ali_stimer_ready(codec) < 0)
 370		return ~0;
 371
 372	dwVal  = (unsigned int) (reg & 0xff);
 373	dwVal |= 0x8000;				/* bit 15*/
 374	if (secondary)
 375		dwVal |= 0x0080;
 376
 377	snd_ali_5451_poke(codec, port, dwVal);
 378
 379	if (snd_ali_stimer_ready(codec) < 0)
 380		return ~0;
 381	if (snd_ali_codec_ready(codec, port) < 0)
 382		return ~0;
 383	
 384	return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
 385}
 386
 387static void snd_ali_codec_write(struct snd_ac97 *ac97,
 388				unsigned short reg,
 389				unsigned short val )
 390{
 391	struct snd_ali *codec = ac97->private_data;
 392
 393	dev_dbg(codec->card->dev, "codec_write: reg=%xh data=%xh.\n", reg, val);
 394	if (reg == AC97_GPIO_STATUS) {
 395		outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
 396		     ALI_REG(codec, ALI_AC97_GPIO));
 397		return;
 398	}
 399	snd_ali_codec_poke(codec, ac97->num, reg, val);
 400	return ;
 401}
 402
 403
 404static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
 405					 unsigned short reg)
 406{
 407	struct snd_ali *codec = ac97->private_data;
 408
 409	dev_dbg(codec->card->dev, "codec_read reg=%xh.\n", reg);
 410	return snd_ali_codec_peek(codec, ac97->num, reg);
 411}
 412
 413/*
 414 *	AC97 Reset
 415 */
 416
 417static int snd_ali_reset_5451(struct snd_ali *codec)
 418{
 419	struct pci_dev *pci_dev;
 420	unsigned short wCount, wReg;
 421	unsigned int   dwVal;
 422	
 423	pci_dev = codec->pci_m1533;
 424	if (pci_dev) {
 425		pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 426		pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 427		mdelay(5);
 428		pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 429		pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 430		mdelay(5);
 431	}
 432	
 433	pci_dev = codec->pci;
 434	pci_read_config_dword(pci_dev, 0x44, &dwVal);
 435	pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 436	udelay(500);
 437	pci_read_config_dword(pci_dev, 0x44, &dwVal);
 438	pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 439	mdelay(5);
 440	
 441	wCount = 200;
 442	while(wCount--) {
 443		wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 444		if ((wReg & 0x000f) == 0x000f)
 445			return 0;
 446		mdelay(5);
 447	}
 448
 449	/* non-fatal if you have a non PM capable codec */
 450	/* dev_warn(codec->card->dev, "ali5451: reset time out\n"); */
 451	return 0;
 452}
 453
 454/*
 455 *  ALI 5451 Controller
 456 */
 457
 458static void snd_ali_enable_special_channel(struct snd_ali *codec,
 459					   unsigned int channel)
 460{
 461	unsigned long dwVal;
 462
 463	dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 464	dwVal |= 1 << (channel & 0x0000001f);
 465	outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 466}
 467
 468static void snd_ali_disable_special_channel(struct snd_ali *codec,
 469					    unsigned int channel)
 470{
 471	unsigned long dwVal;
 472
 473	dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 474	dwVal &= ~(1 << (channel & 0x0000001f));
 475	outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 476}
 477
 478static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 479{
 480	unsigned int gc;
 481
 482	gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 483	gc |= ENDLP_IE;
 484	gc |= MIDLP_IE;
 485	outl( gc, ALI_REG(codec, ALI_GC_CIR));
 486}
 487
 488static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 489{
 490	unsigned int gc;
 491
 492	gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 493	gc &= ~ENDLP_IE;
 494	gc &= ~MIDLP_IE;
 495	outl(gc, ALI_REG(codec, ALI_GC_CIR));
 496}
 497
 498static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 499				      unsigned int channel)
 500{
 501	unsigned int mask;
 502	struct snd_ali_channel_control *pchregs = &(codec->chregs);
 503
 504	dev_dbg(codec->card->dev, "disable_voice_irq channel=%d\n", channel);
 505
 506	mask = 1 << (channel & 0x1f);
 507	pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 508	pchregs->data.ainten &= ~mask;
 509	outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 510}
 511
 512static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 513{
 514	unsigned int idx =  channel & 0x1f;
 515
 516	if (codec->synth.chcnt >= ALI_CHANNELS){
 517		dev_err(codec->card->dev,
 518			   "ali_alloc_pcm_channel: no free channels.\n");
 519		return -1;
 520	}
 521
 522	if (!(codec->synth.chmap & (1 << idx))) {
 523		codec->synth.chmap |= 1 << idx;
 524		codec->synth.chcnt++;
 525		dev_dbg(codec->card->dev, "alloc_pcm_channel no. %d.\n", idx);
 526		return idx;
 527	}
 528	return -1;
 529}
 530
 531static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 532{
 533	int idx;
 534	int result = -1;
 535
 536	dev_dbg(codec->card->dev,
 537		"find_free_channel: for %s\n", rec ? "rec" : "pcm");
 538
 539	/* recording */
 540	if (rec) {
 541		if (codec->spdif_support &&
 542		    (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 543		     ALI_SPDIF_IN_SUPPORT))
 544			idx = ALI_SPDIF_IN_CHANNEL;
 545		else
 546			idx = ALI_PCM_IN_CHANNEL;
 547
 548		result = snd_ali_alloc_pcm_channel(codec, idx);
 549		if (result >= 0)
 550			return result;
 551		else {
 552			dev_err(codec->card->dev,
 553				"ali_find_free_channel: record channel is busy now.\n");
 554			return -1;
 555		}
 556	}
 557
 558	/* playback... */
 559	if (codec->spdif_support &&
 560	    (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 561	     ALI_SPDIF_OUT_CH_ENABLE)) {
 562		idx = ALI_SPDIF_OUT_CHANNEL;
 563		result = snd_ali_alloc_pcm_channel(codec, idx);
 564		if (result >= 0)
 565			return result;
 566		else
 567			dev_err(codec->card->dev,
 568				"ali_find_free_channel: S/PDIF out channel is in busy now.\n");
 569	}
 570
 571	for (idx = 0; idx < ALI_CHANNELS; idx++) {
 572		result = snd_ali_alloc_pcm_channel(codec, idx);
 573		if (result >= 0)
 574			return result;
 575	}
 576	dev_err(codec->card->dev, "ali_find_free_channel: no free channels.\n");
 577	return -1;
 578}
 579
 580static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 581{
 582	unsigned int idx = channel & 0x0000001f;
 583
 584	dev_dbg(codec->card->dev, "free_channel_pcm channel=%d\n", channel);
 585
 586	if (channel < 0 || channel >= ALI_CHANNELS)
 587		return;
 588
 589	if (!(codec->synth.chmap & (1 << idx))) {
 590		dev_err(codec->card->dev,
 591			"ali_free_channel_pcm: channel %d is not in use.\n",
 592			channel);
 593		return;
 594	} else {
 595		codec->synth.chmap &= ~(1 << idx);
 596		codec->synth.chcnt--;
 597	}
 598}
 599
 600static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 601{
 602	unsigned int mask = 1 << (channel & 0x1f);
 603
 604	dev_dbg(codec->card->dev, "stop_voice: channel=%d\n", channel);
 605	outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 606}
 607
 608/*
 609 *    S/PDIF Part
 610 */
 611
 612static void snd_ali_delay(struct snd_ali *codec,int interval)
 613{
 614	unsigned long  begintimer,currenttimer;
 615
 616	begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 617	currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 618
 619	while (currenttimer < begintimer + interval) {
 620		if (snd_ali_stimer_ready(codec) < 0)
 621			break;
 622		currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 623		cpu_relax();
 624	}
 625}
 626
 627static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 628{
 629	u16 wval;
 630	u16 count = 0;
 631	u8  bval, R1 = 0, R2;
 632
 633	bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 634	bval |= 0x1F;
 635	outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 636
 637	while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 638		count ++;
 639		snd_ali_delay(codec, 6);
 640		bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 641		R1 = bval & 0x1F;
 642	}
 643
 644	if (count > 50000) {
 645		dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 646		return;
 647	}
 648
 649	for (count = 0; count <= 50000; count++) {
 650		snd_ali_delay(codec, 6);
 651		bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 652		R2 = bval & 0x1F;
 653		if (R2 != R1)
 654			R1 = R2;
 655		else
 656			break;
 657	}
 658
 659	if (count > 50000) {
 660		dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 661		return;
 662	}
 663
 664	if (R2 >= 0x0b && R2 <= 0x0e) {
 665		wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 666		wval &= 0xe0f0;
 667		wval |= (0x09 << 8) | 0x05;
 668		outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 669
 670		bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 671		outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 672	} else if (R2 == 0x12) {
 673		wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 674		wval &= 0xe0f0;
 675		wval |= (0x0e << 8) | 0x08;
 676		outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 677
 678		bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 679		outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 680	}
 681}
 682
 683static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 684{
 685	u32	dwRate;
 686	u8	bval;
 687
 688	bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 689	bval &= 0x7f;
 690	bval |= 0x40;
 691	outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 692
 693	snd_ali_detect_spdif_rate(codec);
 694
 695	bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 696	bval &= 0x0f;
 697
 698	switch (bval) {
 699	case 0: dwRate = 44100; break;
 700	case 1: dwRate = 48000; break;
 701	case 2: dwRate = 32000; break;
 702	default: dwRate = 0; break;
 703	}
 704
 705	return dwRate;
 706}
 707
 708static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 709{	
 710	unsigned int dwVal;
 711
 712	dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 713	dwVal |= ALI_SPDIF_IN_SUPPORT;
 714	outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 715
 716	dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 717	dwVal |= 0x02;
 718	outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 719
 720	snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 721}
 722
 723static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 724{
 725	unsigned int dwVal;
 726	
 727	dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 728	dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 729	outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 730	
 731	snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);	
 732}
 733
 734
 735static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 736{
 737	unsigned char  bVal;
 738	unsigned int  dwRate;
 739	
 740	switch (rate) {
 741	case 32000: dwRate = 0x300; break;
 742	case 48000: dwRate = 0x200; break;
 743	default: dwRate = 0; break;
 744	}
 745	
 746	bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 747	bVal &= (unsigned char)(~(1<<6));
 748	
 749	bVal |= 0x80;		/* select right */
 750	outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 751	outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 752	
 753	bVal &= ~0x80;	/* select left */
 754	outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 755	outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 756}
 757
 758static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 759{
 760	unsigned short wVal;
 761	unsigned char bVal;
 762        struct pci_dev *pci_dev;
 763
 764        pci_dev = codec->pci_m1533;
 765        if (pci_dev == NULL)
 766                return;
 767        pci_read_config_byte(pci_dev, 0x61, &bVal);
 768        bVal |= 0x40;
 769        pci_write_config_byte(pci_dev, 0x61, bVal);
 770        pci_read_config_byte(pci_dev, 0x7d, &bVal);
 771        bVal |= 0x01;
 772        pci_write_config_byte(pci_dev, 0x7d, bVal);
 773
 774        pci_read_config_byte(pci_dev, 0x7e, &bVal);
 775        bVal &= (~0x20);
 776        bVal |= 0x10;
 777        pci_write_config_byte(pci_dev, 0x7e, bVal);
 778
 779	bVal = inb(ALI_REG(codec, ALI_SCTRL));
 780	outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 781
 782	bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 783	outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 784   
 785	wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 786	wVal |= ALI_SPDIF_OUT_SEL_PCM;
 787	outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 788	snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 789}
 790
 791static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 792{
 793	unsigned short wVal;
 794
 795	wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 796   	wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 797   	outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 798/*
 799	wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 800	if (flag & ALI_SPDIF_OUT_NON_PCM)
 801   		wVal |= 0x0002;
 802	else	
 803		wVal &= (~0x0002);
 804   	outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 805*/
 806	snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 807}
 808
 809static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 810{
 811	unsigned short wVal;
 812
 813  	wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 814   	wVal |= ALI_SPDIF_OUT_SEL_PCM;
 815   	outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 816
 817	snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 818}
 819
 820static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 821{
 822	unsigned char  bVal;
 823
 824	bVal = inb(ALI_REG(codec, ALI_SCTRL));
 825	outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 826
 827	snd_ali_disable_spdif_chnout(codec);
 828}
 829
 830static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 831{
 832	struct snd_ali_voice *pvoice;
 833	struct snd_ali_channel_control *pchregs;
 834	unsigned int old, mask;
 835
 836	pchregs = &(codec->chregs);
 837
 838	/* check if interrupt occurred for channel */
 839	old  = pchregs->data.aint;
 840	mask = 1U << (channel & 0x1f);
 841
 842	if (!(old & mask))
 843		return;
 844
 845	pvoice = &codec->synth.voices[channel];
 846
 847	udelay(100);
 848	spin_lock(&codec->reg_lock);
 849
 850	if (pvoice->pcm && pvoice->substream) {
 851		/* pcm interrupt */
 852		if (pvoice->running) {
 853			dev_dbg(codec->card->dev,
 854				"update_ptr: cso=%4.4x cspf=%d.\n",
 855				inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2)),
 856				(inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask);
 857			spin_unlock(&codec->reg_lock);
 858			snd_pcm_period_elapsed(pvoice->substream);
 859			spin_lock(&codec->reg_lock);
 860		} else {
 861			snd_ali_stop_voice(codec, channel);
 862			snd_ali_disable_voice_irq(codec, channel);
 863		}	
 864	} else if (codec->synth.voices[channel].synth) {
 865		/* synth interrupt */
 866	} else if (codec->synth.voices[channel].midi) {
 867		/* midi interrupt */
 868	} else {
 869		/* unknown interrupt */
 870		snd_ali_stop_voice(codec, channel);
 871		snd_ali_disable_voice_irq(codec, channel);
 872	}
 873	spin_unlock(&codec->reg_lock);
 874	outl(mask,ALI_REG(codec,pchregs->regs.aint));
 875	pchregs->data.aint = old & (~mask);
 876}
 877
 878static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 879{
 880	struct snd_ali 	*codec = dev_id;
 881	int channel;
 882	unsigned int audio_int;
 883	struct snd_ali_channel_control *pchregs;
 884
 885	if (codec == NULL || !codec->hw_initialized)
 886		return IRQ_NONE;
 887
 888	audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 889	if (!audio_int)
 890		return IRQ_NONE;
 891
 892	pchregs = &(codec->chregs);
 893	if (audio_int & ADDRESS_IRQ) {
 894		/* get interrupt status for all channels */
 895		pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 896		for (channel = 0; channel < ALI_CHANNELS; channel++)
 897			snd_ali_update_ptr(codec, channel);
 898	}
 899	outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 900		ALI_REG(codec, ALI_MISCINT));
 901
 902	return IRQ_HANDLED;
 903}
 904
 905
 906static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
 907						 int type, int rec, int channel)
 908{
 909	struct snd_ali_voice *pvoice;
 910	int idx;
 911
 912	dev_dbg(codec->card->dev, "alloc_voice: type=%d rec=%d\n", type, rec);
 913
 914	guard(spinlock_irq)(&codec->voice_alloc);
 915	if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
 916		idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
 917			snd_ali_find_free_channel(codec,rec);
 918		if (idx < 0) {
 919			dev_err(codec->card->dev, "ali_alloc_voice: err.\n");
 920			return NULL;
 921		}
 922		pvoice = &(codec->synth.voices[idx]);
 923		pvoice->codec = codec;
 924		pvoice->use = 1;
 925		pvoice->pcm = 1;
 926		pvoice->mode = rec;
 927		return pvoice;
 928	}
 929	return NULL;
 930}
 931
 932
 933static void snd_ali_free_voice(struct snd_ali * codec,
 934			       struct snd_ali_voice *pvoice)
 935{
 936	void (*private_free)(void *);
 937	void *private_data;
 938
 939	dev_dbg(codec->card->dev, "free_voice: channel=%d\n", pvoice->number);
 940	if (!pvoice->use)
 941		return;
 942	snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
 943	scoped_guard(spinlock_irq, &codec->voice_alloc) {
 944		private_free = pvoice->private_free;
 945		private_data = pvoice->private_data;
 946		pvoice->private_free = NULL;
 947		pvoice->private_data = NULL;
 948		if (pvoice->pcm)
 949			snd_ali_free_channel_pcm(codec, pvoice->number);
 950		pvoice->use = pvoice->pcm = pvoice->synth = 0;
 951		pvoice->substream = NULL;
 952	}
 953	if (private_free)
 954		private_free(private_data);
 955}
 956
 957
 958static void snd_ali_clear_voices(struct snd_ali *codec,
 959				 unsigned int v_min,
 960				 unsigned int v_max)
 961{
 962	unsigned int i;
 963
 964	for (i = v_min; i <= v_max; i++) {
 965		snd_ali_stop_voice(codec, i);
 966		snd_ali_disable_voice_irq(codec, i);
 967	}
 968}
 969
 970static void snd_ali_write_voice_regs(struct snd_ali *codec,
 971			 unsigned int Channel,
 972			 unsigned int LBA,
 973			 unsigned int CSO,
 974			 unsigned int ESO,
 975			 unsigned int DELTA,
 976			 unsigned int ALPHA_FMS,
 977			 unsigned int GVSEL,
 978			 unsigned int PAN,
 979			 unsigned int VOL,
 980			 unsigned int CTRL,
 981			 unsigned int EC)
 982{
 983	unsigned int ctlcmds[4];
 984	
 985	outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
 986
 987	ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
 988	ctlcmds[1] =  LBA;
 989	ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
 990	ctlcmds[3] =  (GVSEL << 31) |
 991		      ((PAN & 0x0000007f) << 24) |
 992		      ((VOL & 0x000000ff) << 16) |
 993		      ((CTRL & 0x0000000f) << 12) |
 994		      (EC & 0x00000fff);
 995
 996	outb(Channel, ALI_REG(codec, ALI_GC_CIR));
 997
 998	outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
 999	outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1000	outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1001	outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1002
1003	outl(0x30000000, ALI_REG(codec, ALI_EBUF1));	/* Still Mode */
1004	outl(0x30000000, ALI_REG(codec, ALI_EBUF2));	/* Still Mode */
1005}
1006
1007static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1008{
1009	unsigned int delta;
1010
1011	if (rate < 4000)
1012		rate = 4000;
1013	if (rate > 48000)
1014		rate = 48000;
1015
1016	if (rec) {
1017		if (rate == 44100)
1018			delta = 0x116a;
1019		else if (rate == 8000)
1020			delta = 0x6000;
1021		else if (rate == 48000)
1022			delta = 0x1000;
1023		else
1024			delta = ((48000 << 12) / rate) & 0x0000ffff;
1025	} else {
1026		if (rate == 44100)
1027			delta = 0xeb3;
1028		else if (rate == 8000)
1029			delta = 0x2ab;
1030		else if (rate == 48000)
1031			delta = 0x1000;
1032		else 
1033			delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1034	}
1035
1036	return delta;
1037}
1038
1039static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1040{
1041	unsigned int CTRL;
1042	struct snd_pcm_runtime *runtime = substream->runtime;
1043
1044	/* set ctrl mode
1045	   CTRL default: 8-bit (unsigned) mono, loop mode enabled
1046	 */
1047	CTRL = 0x00000001;
1048	if (snd_pcm_format_width(runtime->format) == 16)
1049		CTRL |= 0x00000008;	/* 16-bit data */
1050	if (!snd_pcm_format_unsigned(runtime->format))
1051		CTRL |= 0x00000002;	/* signed data */
1052	if (runtime->channels > 1)
1053		CTRL |= 0x00000004;	/* stereo data */
1054	return CTRL;
1055}
1056
1057/*
1058 *  PCM part
1059 */
1060
1061static int snd_ali_trigger(struct snd_pcm_substream *substream,
1062			       int cmd)
1063				    
1064{
1065	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1066	struct snd_pcm_substream *s;
1067	unsigned int what, whati;
1068	struct snd_ali_voice *pvoice, *evoice;
1069	unsigned int val;
1070	int do_start;
1071
1072	switch (cmd) {
1073	case SNDRV_PCM_TRIGGER_START:
1074	case SNDRV_PCM_TRIGGER_RESUME:
1075		do_start = 1;
1076		break;
1077	case SNDRV_PCM_TRIGGER_STOP:
1078	case SNDRV_PCM_TRIGGER_SUSPEND:
1079		do_start = 0;
1080		break;
1081	default:
1082		return -EINVAL;
1083	}
1084
1085	what = whati = 0;
1086	snd_pcm_group_for_each_entry(s, substream) {
1087		if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1088			pvoice = s->runtime->private_data;
1089			evoice = pvoice->extra;
1090			what |= 1 << (pvoice->number & 0x1f);
1091			if (evoice == NULL)
1092				whati |= 1 << (pvoice->number & 0x1f);
1093			else {
1094				whati |= 1 << (evoice->number & 0x1f);
1095				what |= 1 << (evoice->number & 0x1f);
1096			}
1097			if (do_start) {
1098				pvoice->running = 1;
1099				if (evoice != NULL)
1100					evoice->running = 1;
1101			} else {
1102				pvoice->running = 0;
1103				if (evoice != NULL)
1104					evoice->running = 0;
1105			}
1106			snd_pcm_trigger_done(s, substream);
1107		}
1108	}
1109	guard(spinlock)(&codec->reg_lock);
1110	if (!do_start)
1111		outl(what, ALI_REG(codec, ALI_STOP));
1112	val = inl(ALI_REG(codec, ALI_AINTEN));
1113	if (do_start)
1114		val |= whati;
1115	else
1116		val &= ~whati;
1117	outl(val, ALI_REG(codec, ALI_AINTEN));
1118	if (do_start)
1119		outl(what, ALI_REG(codec, ALI_START));
1120	dev_dbg(codec->card->dev, "trigger: what=%xh whati=%xh\n", what, whati);
1121
1122	return 0;
1123}
1124
1125static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1126				      struct snd_pcm_hw_params *hw_params)
1127{
1128	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1129	struct snd_pcm_runtime *runtime = substream->runtime;
1130	struct snd_ali_voice *pvoice = runtime->private_data;
1131	struct snd_ali_voice *evoice = pvoice->extra;
1132
1133	/* voice management */
1134
1135	if (params_buffer_size(hw_params) / 2 !=
1136	    params_period_size(hw_params)) {
1137		if (!evoice) {
1138			evoice = snd_ali_alloc_voice(codec,
1139						     SNDRV_ALI_VOICE_TYPE_PCM,
1140						     0, -1);
1141			if (!evoice)
1142				return -ENOMEM;
1143			pvoice->extra = evoice;
1144			evoice->substream = substream;
1145		}
1146	} else {
1147		if (evoice) {
1148			snd_ali_free_voice(codec, evoice);
1149			pvoice->extra = evoice = NULL;
1150		}
1151	}
1152
1153	return 0;
1154}
1155
1156static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1157{
1158	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1159	struct snd_pcm_runtime *runtime = substream->runtime;
1160	struct snd_ali_voice *pvoice = runtime->private_data;
1161	struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1162
1163	if (evoice) {
1164		snd_ali_free_voice(codec, evoice);
1165		pvoice->extra = NULL;
1166	}
1167	return 0;
1168}
1169
1170static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1171{
1172	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1173	struct snd_pcm_runtime *runtime = substream->runtime;
1174	struct snd_ali_voice *pvoice = runtime->private_data;
1175	struct snd_ali_voice *evoice = pvoice->extra;
1176
1177	unsigned int LBA;
1178	unsigned int Delta;
1179	unsigned int ESO;
1180	unsigned int CTRL;
1181	unsigned int GVSEL;
1182	unsigned int PAN;
1183	unsigned int VOL;
1184	unsigned int EC;
1185	
1186	dev_dbg(codec->card->dev, "playback_prepare ...\n");
1187
1188	guard(spinlock_irq)(&codec->reg_lock);
1189
1190	/* set Delta (rate) value */
1191	Delta = snd_ali_convert_rate(runtime->rate, 0);
1192
1193	if (pvoice->number == ALI_SPDIF_IN_CHANNEL || 
1194	    pvoice->number == ALI_PCM_IN_CHANNEL)
1195		snd_ali_disable_special_channel(codec, pvoice->number);
1196	else if (codec->spdif_support &&
1197		 (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1198		  ALI_SPDIF_OUT_CH_ENABLE)
1199		 && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1200		snd_ali_set_spdif_out_rate(codec, runtime->rate);
1201		Delta = 0x1000;
1202	}
1203	
1204	/* set Loop Back Address */
1205	LBA = runtime->dma_addr;
1206
1207	/* set interrupt count size */
1208	pvoice->count = runtime->period_size;
1209
1210	/* set target ESO for channel */
1211	pvoice->eso = runtime->buffer_size; 
1212
1213	dev_dbg(codec->card->dev, "playback_prepare: eso=%xh count=%xh\n",
1214		       pvoice->eso, pvoice->count);
1215
1216	/* set ESO to capture first MIDLP interrupt */
1217	ESO = pvoice->eso -1;
1218	/* set ctrl mode */
1219	CTRL = snd_ali_control_mode(substream);
1220
1221	GVSEL = 1;
1222	PAN = 0;
1223	VOL = 0;
1224	EC = 0;
1225	dev_dbg(codec->card->dev, "playback_prepare:\n");
1226	dev_dbg(codec->card->dev,
1227		"ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1228		       pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1229	snd_ali_write_voice_regs(codec,
1230				 pvoice->number,
1231				 LBA,
1232				 0,	/* cso */
1233				 ESO,
1234				 Delta,
1235				 0,	/* alpha */
1236				 GVSEL,
1237				 PAN,
1238				 VOL,
1239				 CTRL,
1240				 EC);
1241	if (evoice) {
1242		evoice->count = pvoice->count;
1243		evoice->eso = pvoice->count << 1;
1244		ESO = evoice->eso - 1;
1245		snd_ali_write_voice_regs(codec,
1246					 evoice->number,
1247					 LBA,
1248					 0,	/* cso */
1249					 ESO,
1250					 Delta,
1251					 0,	/* alpha */
1252					 GVSEL,
1253					 0x7f,
1254					 0x3ff,
1255					 CTRL,
1256					 EC);
1257	}
1258	return 0;
1259}
1260
1261
1262static int snd_ali_prepare(struct snd_pcm_substream *substream)
1263{
1264	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1265	struct snd_pcm_runtime *runtime = substream->runtime;
1266	struct snd_ali_voice *pvoice = runtime->private_data;
1267	unsigned int LBA;
1268	unsigned int Delta;
1269	unsigned int ESO;
1270	unsigned int CTRL;
1271	unsigned int GVSEL;
1272	unsigned int PAN;
1273	unsigned int VOL;
1274	unsigned int EC;
1275	u8	 bValue;
1276
1277	spin_lock_irq(&codec->reg_lock);
1278
1279	dev_dbg(codec->card->dev, "ali_prepare...\n");
1280
1281	snd_ali_enable_special_channel(codec,pvoice->number);
1282
1283	Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1284		 pvoice->number == ALI_MODEM_OUT_CHANNEL) ? 
1285		0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1286
1287	/* Prepare capture intr channel */
1288	if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1289
1290		unsigned int rate;
1291		
1292		spin_unlock_irq(&codec->reg_lock);
1293		if (codec->revision != ALI_5451_V02)
1294			return -1;
1295
1296		rate = snd_ali_get_spdif_in_rate(codec);
1297		if (rate == 0) {
1298			dev_warn(codec->card->dev,
1299				 "ali_capture_prepare: spdif rate detect err!\n");
1300			rate = 48000;
1301		}
1302		spin_lock_irq(&codec->reg_lock);
1303		bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1304		if (bValue & 0x10) {
1305			outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1306			dev_warn(codec->card->dev,
1307				 "clear SPDIF parity error flag.\n");
1308		}
1309
1310		if (rate != 48000)
1311			Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1312	}
1313
1314	/* set target ESO for channel  */
1315	pvoice->eso = runtime->buffer_size; 
1316
1317	/* set interrupt count size  */
1318	pvoice->count = runtime->period_size;
1319
1320	/* set Loop Back Address  */
1321	LBA = runtime->dma_addr;
1322
1323	/* set ESO to capture first MIDLP interrupt  */
1324	ESO = pvoice->eso - 1;
1325	CTRL = snd_ali_control_mode(substream);
1326	GVSEL = 0;
1327	PAN = 0x00;
1328	VOL = 0x00;
1329	EC = 0;
1330
1331	snd_ali_write_voice_regs(    codec,
1332				     pvoice->number,
1333				     LBA,
1334				     0,	/* cso */
1335				     ESO,
1336				     Delta,
1337				     0,	/* alpha */
1338				     GVSEL,
1339				     PAN,
1340				     VOL,
1341				     CTRL,
1342				     EC);
1343
1344	spin_unlock_irq(&codec->reg_lock);
1345
1346	return 0;
1347}
1348
1349
1350static snd_pcm_uframes_t
1351snd_ali_playback_pointer(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	unsigned int cso;
1357
1358	guard(spinlock)(&codec->reg_lock);
1359	if (!pvoice->running)
1360		return 0;
1361	outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1362	cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1363	dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
1364
1365	cso %= runtime->buffer_size;
1366	return cso;
1367}
1368
1369
1370static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1371{
1372	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1373	struct snd_pcm_runtime *runtime = substream->runtime;
1374	struct snd_ali_voice *pvoice = runtime->private_data;
1375	unsigned int cso;
1376
1377	guard(spinlock)(&codec->reg_lock);
1378	if (!pvoice->running)
1379		return 0;
1380	outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1381	cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1382
1383	cso %= runtime->buffer_size;
1384	return cso;
1385}
1386
1387static const struct snd_pcm_hardware snd_ali_playback =
1388{
1389	.info =		(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1390			 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1391			 SNDRV_PCM_INFO_MMAP_VALID |
1392			 SNDRV_PCM_INFO_RESUME |
1393			 SNDRV_PCM_INFO_SYNC_START),
1394	.formats =	(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1395			 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1396	.rates =	SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1397	.rate_min =		4000,
1398	.rate_max =		48000,
1399	.channels_min =		1,
1400	.channels_max =		2,
1401	.buffer_bytes_max =	(256*1024),
1402	.period_bytes_min =	64,
1403	.period_bytes_max =	(256*1024),
1404	.periods_min =		1,
1405	.periods_max =		1024,
1406	.fifo_size =		0,
1407};
1408
1409/*
1410 *  Capture support device description
1411 */
1412
1413static const struct snd_pcm_hardware snd_ali_capture =
1414{
1415	.info =		(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1416			 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1417			 SNDRV_PCM_INFO_MMAP_VALID |
1418			 SNDRV_PCM_INFO_RESUME |
1419			 SNDRV_PCM_INFO_SYNC_START),
1420	.formats =	(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1421			 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1422	.rates =	SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1423	.rate_min =		4000,
1424	.rate_max =		48000,
1425	.channels_min =		1,
1426	.channels_max =		2,
1427	.buffer_bytes_max =	(128*1024),
1428	.period_bytes_min =	64,
1429	.period_bytes_max =	(128*1024),
1430	.periods_min =		1,
1431	.periods_max =		1024,
1432	.fifo_size =		0,
1433};
1434
1435static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1436{
1437	struct snd_ali_voice *pvoice = runtime->private_data;
1438
1439	if (pvoice)
1440		snd_ali_free_voice(pvoice->codec, pvoice);
1441}
1442
1443static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1444			int channel, const struct snd_pcm_hardware *phw)
1445{
1446	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1447	struct snd_pcm_runtime *runtime = substream->runtime;
1448	struct snd_ali_voice *pvoice;
1449
1450	pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1451				     channel);
1452	if (!pvoice)
1453		return -EAGAIN;
1454
1455	pvoice->substream = substream;
1456	runtime->private_data = pvoice;
1457	runtime->private_free = snd_ali_pcm_free_substream;
1458
1459	runtime->hw = *phw;
1460	snd_pcm_set_sync(substream);
1461	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1462				     0, 64*1024);
1463	return 0;
1464}
1465
1466static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1467{
1468	return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1469}
1470
1471static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1472{
1473	return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1474}
1475
1476static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1477{
1478	return 0;
1479}
1480
1481static int snd_ali_close(struct snd_pcm_substream *substream)
1482{
1483	struct snd_ali *codec = snd_pcm_substream_chip(substream);
1484	struct snd_ali_voice *pvoice = substream->runtime->private_data;
1485
1486	snd_ali_disable_special_channel(codec,pvoice->number);
1487
1488	return 0;
1489}
1490
1491static const struct snd_pcm_ops snd_ali_playback_ops = {
1492	.open =		snd_ali_playback_open,
1493	.close =	snd_ali_playback_close,
1494	.hw_params =	snd_ali_playback_hw_params,
1495	.hw_free =	snd_ali_playback_hw_free,
1496	.prepare =	snd_ali_playback_prepare,
1497	.trigger =	snd_ali_trigger,
1498	.pointer =	snd_ali_playback_pointer,
1499};
1500
1501static const struct snd_pcm_ops snd_ali_capture_ops = {
1502	.open =		snd_ali_capture_open,
1503	.close =	snd_ali_close,
1504	.prepare =	snd_ali_prepare,
1505	.trigger =	snd_ali_trigger,
1506	.pointer =	snd_ali_pointer,
1507};
1508
1509/*
1510 * Modem PCM
1511 */
1512
1513static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1514				 struct snd_pcm_hw_params *hw_params)
1515{
1516	struct snd_ali *chip = snd_pcm_substream_chip(substream);
1517	unsigned int modem_num = chip->num_of_codecs - 1;
1518	snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1519		       params_rate(hw_params));
1520	snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1521	return 0;
1522}
1523
1524static const struct snd_pcm_hardware snd_ali_modem =
1525{
1526	.info =		(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1527			 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1528			 SNDRV_PCM_INFO_MMAP_VALID |
1529			 SNDRV_PCM_INFO_RESUME |
1530			 SNDRV_PCM_INFO_SYNC_START),
1531	.formats =	SNDRV_PCM_FMTBIT_S16_LE,
1532	.rates =	(SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1533			 SNDRV_PCM_RATE_16000),
1534	.rate_min =		8000,
1535	.rate_max =		16000,
1536	.channels_min =		1,
1537	.channels_max =		1,
1538	.buffer_bytes_max =	(256*1024),
1539	.period_bytes_min =	64,
1540	.period_bytes_max =	(256*1024),
1541	.periods_min =		1,
1542	.periods_max =		1024,
1543	.fifo_size =		0,
1544};
1545
1546static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1547			      int channel)
1548{
1549	static const unsigned int rates[] = {8000, 9600, 12000, 16000};
1550	static const struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1551		.count = ARRAY_SIZE(rates),
1552		.list = rates,
1553		.mask = 0,
1554	};
1555	int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1556
1557	if (err)
1558		return err;
1559	return snd_pcm_hw_constraint_list(substream->runtime, 0,
1560			SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1561}
1562
1563static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1564{
1565	return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1566}
1567
1568static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1569{
1570	return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1571}
1572
1573static const struct snd_pcm_ops snd_ali_modem_playback_ops = {
1574	.open =		snd_ali_modem_playback_open,
1575	.close =	snd_ali_close,
1576	.hw_params =	snd_ali_modem_hw_params,
1577	.prepare =	snd_ali_prepare,
1578	.trigger =	snd_ali_trigger,
1579	.pointer =	snd_ali_pointer,
1580};
1581
1582static const struct snd_pcm_ops snd_ali_modem_capture_ops = {
1583	.open =		snd_ali_modem_capture_open,
1584	.close =	snd_ali_close,
1585	.hw_params =	snd_ali_modem_hw_params,
1586	.prepare =	snd_ali_prepare,
1587	.trigger =	snd_ali_trigger,
1588	.pointer =	snd_ali_pointer,
1589};
1590
1591
1592struct ali_pcm_description {
1593	char *name;
1594	unsigned int playback_num;
1595	unsigned int capture_num;
1596	const struct snd_pcm_ops *playback_ops;
1597	const struct snd_pcm_ops *capture_ops;
1598	unsigned short class;
1599};
1600
1601
1602static void snd_ali_pcm_free(struct snd_pcm *pcm)
1603{
1604	struct snd_ali *codec = pcm->private_data;
1605	codec->pcm[pcm->device] = NULL;
1606}
1607
1608
1609static int snd_ali_pcm(struct snd_ali *codec, int device,
1610		       struct ali_pcm_description *desc)
1611{
1612	struct snd_pcm *pcm;
1613	int err;
1614
1615	err = snd_pcm_new(codec->card, desc->name, device,
1616			  desc->playback_num, desc->capture_num, &pcm);
1617	if (err < 0) {
1618		dev_err(codec->card->dev,
1619			"snd_ali_pcm: err called snd_pcm_new.\n");
1620		return err;
1621	}
1622	pcm->private_data = codec;
1623	pcm->private_free = snd_ali_pcm_free;
1624	if (desc->playback_ops)
1625		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1626				desc->playback_ops);
1627	if (desc->capture_ops)
1628		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1629				desc->capture_ops);
1630
1631	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1632				       &codec->pci->dev, 64*1024, 128*1024);
1633
1634	pcm->info_flags = 0;
1635	pcm->dev_class = desc->class;
1636	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1637	strscpy(pcm->name, desc->name);
1638	codec->pcm[0] = pcm;
1639	return 0;
1640}
1641
1642static struct ali_pcm_description ali_pcms[] = {
1643	{ .name = "ALI 5451",
1644	  .playback_num = ALI_CHANNELS,
1645	  .capture_num = 1,
1646	  .playback_ops = &snd_ali_playback_ops,
1647	  .capture_ops = &snd_ali_capture_ops
1648	},
1649	{ .name = "ALI 5451 modem",
1650	  .playback_num = 1,
1651	  .capture_num = 1,
1652	  .playback_ops = &snd_ali_modem_playback_ops,
1653	  .capture_ops = &snd_ali_modem_capture_ops,
1654	  .class = SNDRV_PCM_CLASS_MODEM
1655	}
1656};
1657
1658static int snd_ali_build_pcms(struct snd_ali *codec)
1659{
1660	int i, err;
1661	for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1662		err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1663		if (err < 0)
1664			return err;
1665	}
1666	return 0;
1667}
1668
1669
1670#define ALI5451_SPDIF(xname, xindex, value) \
1671{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1672.info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1673.put = snd_ali5451_spdif_put, .private_value = value}
1674
1675#define snd_ali5451_spdif_info		snd_ctl_boolean_mono_info
1676
1677static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1678				 struct snd_ctl_elem_value *ucontrol)
1679{
1680	struct snd_ali *codec = snd_kcontrol_chip(kcontrol);
1681	unsigned int spdif_enable;
1682
1683	spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1684
1685	guard(spinlock_irq)(&codec->reg_lock);
1686	switch (kcontrol->private_value) {
1687	case 0:
1688		spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1689		break;
1690	case 1:
1691		spdif_enable = ((codec->spdif_mask & 0x02) &&
1692			  (codec->spdif_mask & 0x04)) ? 1 : 0;
1693		break;
1694	case 2:
1695		spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1696		break;
1697	default:
1698		break;
1699	}
1700	ucontrol->value.integer.value[0] = spdif_enable;
1701	return 0;
1702}
1703
1704static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1705				 struct snd_ctl_elem_value *ucontrol)
1706{
1707	struct snd_ali *codec = snd_kcontrol_chip(kcontrol);
1708	unsigned int change = 0, spdif_enable = 0;
1709
1710	spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1711
1712	guard(spinlock_irq)(&codec->reg_lock);
1713	switch (kcontrol->private_value) {
1714	case 0:
1715		change = (codec->spdif_mask & 0x02) ? 1 : 0;
1716		change = change ^ spdif_enable;
1717		if (change) {
1718			if (spdif_enable) {
1719				codec->spdif_mask |= 0x02;
1720				snd_ali_enable_spdif_out(codec);
1721			} else {
1722				codec->spdif_mask &= ~(0x02);
1723				codec->spdif_mask &= ~(0x04);
1724				snd_ali_disable_spdif_out(codec);
1725			}
1726		}
1727		break;
1728	case 1: 
1729		change = (codec->spdif_mask & 0x04) ? 1 : 0;
1730		change = change ^ spdif_enable;
1731		if (change && (codec->spdif_mask & 0x02)) {
1732			if (spdif_enable) {
1733				codec->spdif_mask |= 0x04;
1734				snd_ali_enable_spdif_chnout(codec);
1735			} else {
1736				codec->spdif_mask &= ~(0x04);
1737				snd_ali_disable_spdif_chnout(codec);
1738			}
1739		}
1740		break;
1741	case 2:
1742		change = (codec->spdif_mask & 0x01) ? 1 : 0;
1743		change = change ^ spdif_enable;
1744		if (change) {
1745			if (spdif_enable) {
1746				codec->spdif_mask |= 0x01;
1747				snd_ali_enable_spdif_in(codec);
1748			} else {
1749				codec->spdif_mask &= ~(0x01);
1750				snd_ali_disable_spdif_in(codec);
1751			}
1752		}
1753		break;
1754	default:
1755		break;
1756	}
1757	
1758	return change;
1759}
1760
1761static const struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1762	/* spdif aplayback switch */
1763	/* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1764	ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1765	/* spdif out to spdif channel */
1766	ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1767	/* spdif in from spdif channel */
1768	ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1769};
1770
1771static int snd_ali_mixer(struct snd_ali *codec)
1772{
1773	struct snd_ac97_template ac97;
1774	unsigned int idx;
1775	int i, err;
1776	static const struct snd_ac97_bus_ops ops = {
1777		.write = snd_ali_codec_write,
1778		.read = snd_ali_codec_read,
1779	};
1780
1781	err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1782	if (err < 0)
1783		return err;
1784
1785	memset(&ac97, 0, sizeof(ac97));
1786	ac97.private_data = codec;
1787
1788	for (i = 0; i < codec->num_of_codecs; i++) {
1789		ac97.num = i;
1790		err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1791		if (err < 0) {
1792			dev_err(codec->card->dev,
1793				   "ali mixer %d creating error.\n", i);
1794			if (i == 0)
1795				return err;
1796			codec->num_of_codecs = 1;
1797			break;
1798		}
1799	}
1800
1801	if (codec->spdif_support) {
1802		for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1803			err = snd_ctl_add(codec->card,
1804					  snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1805			if (err < 0)
1806				return err;
1807		}
1808	}
1809	return 0;
1810}
1811
1812static int ali_suspend(struct device *dev)
1813{
1814	struct snd_card *card = dev_get_drvdata(dev);
1815	struct snd_ali *chip = card->private_data;
1816	struct snd_ali_image *im = &chip->image;
1817	int i, j;
1818
1819	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1820	for (i = 0; i < chip->num_of_codecs; i++)
1821		snd_ac97_suspend(chip->ac97[i]);
1822
1823	guard(spinlock_irq)(&chip->reg_lock);
1824	
1825	im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1826	/* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1827	im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1828	
1829	/* disable all IRQ bits */
1830	outl(0, ALI_REG(chip, ALI_MISCINT));
1831	
1832	for (i = 0; i < ALI_GLOBAL_REGS; i++) {	
1833		if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1834			continue;
1835		im->regs[i] = inl(ALI_REG(chip, i*4));
1836	}
1837	
1838	for (i = 0; i < ALI_CHANNELS; i++) {
1839		outb(i, ALI_REG(chip, ALI_GC_CIR));
1840		for (j = 0; j < ALI_CHANNEL_REGS; j++) 
1841			im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1842	}
1843
1844	/* stop all HW channel */
1845	outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1846
1847	return 0;
1848}
1849
1850static int ali_resume(struct device *dev)
1851{
1852	struct snd_card *card = dev_get_drvdata(dev);
1853	struct snd_ali *chip = card->private_data;
1854	struct snd_ali_image *im = &chip->image;
1855	int i, j;
1856
1857	scoped_guard(spinlock_irq, &chip->reg_lock) {
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				outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1862		}
1863	
1864		for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1865			if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1866			    (i*4 == ALI_START))
1867				continue;
1868			outl(im->regs[i], ALI_REG(chip, i*4));
1869		}
1870
1871		/* start HW channel */
1872		outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1873		/* restore IRQ enable bits */
1874		outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1875	}
1876
1877	for (i = 0 ; i < chip->num_of_codecs; i++)
1878		snd_ac97_resume(chip->ac97[i]);
1879	
1880	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1881	return 0;
1882}
1883
1884static DEFINE_SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1885
1886static void snd_ali_free(struct snd_card *card)
1887{
1888	struct snd_ali *codec = card->private_data;
1889
1890	if (codec->hw_initialized)
1891		snd_ali_disable_address_interrupt(codec);
1892	pci_dev_put(codec->pci_m1533);
1893	pci_dev_put(codec->pci_m7101);
1894}
1895
1896static int snd_ali_chip_init(struct snd_ali *codec)
1897{
1898	unsigned int legacy;
1899	unsigned char temp;
1900	struct pci_dev *pci_dev;
1901
1902	dev_dbg(codec->card->dev, "chip initializing ...\n");
1903
1904	if (snd_ali_reset_5451(codec)) {
1905		dev_err(codec->card->dev, "ali_chip_init: reset 5451 error.\n");
1906		return -1;
1907	}
1908
1909	if (codec->revision == ALI_5451_V02) {
1910        	pci_dev = codec->pci_m1533;
1911		pci_read_config_byte(pci_dev, 0x59, &temp);
1912		temp |= 0x80;
1913		pci_write_config_byte(pci_dev, 0x59, temp);
1914	
1915		pci_dev = codec->pci_m7101;
1916		pci_read_config_byte(pci_dev, 0xb8, &temp);
1917		temp |= 0x20;
1918		pci_write_config_byte(pci_dev, 0xB8, temp);
1919	}
1920
1921	pci_read_config_dword(codec->pci, 0x44, &legacy);
1922	legacy &= 0xff00ff00;
1923	legacy |= 0x000800aa;
1924	pci_write_config_dword(codec->pci, 0x44, legacy);
1925
1926	outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
1927	outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
1928	outl(0xffffffff, ALI_REG(codec, ALI_AINT));
1929	outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
1930	outb(0x10, 	 ALI_REG(codec, ALI_MPUR2));
1931
1932	codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
1933	codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
1934						    AC97_EXTENDED_STATUS);
1935	if (codec->spdif_support) {
1936		snd_ali_enable_spdif_out(codec);
1937		codec->spdif_mask = 0x00000002;
1938	}
1939
1940	codec->num_of_codecs = 1;
1941
1942	/* secondary codec - modem */
1943	if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
1944		codec->num_of_codecs++;
1945		outl(inl(ALI_REG(codec, ALI_SCTRL)) |
1946		     (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
1947		      ALI_SCTRL_LINE_OUT_EN),
1948		     ALI_REG(codec, ALI_SCTRL));
1949	}
1950
1951	dev_dbg(codec->card->dev, "chip initialize succeed.\n");
1952	return 0;
1953
1954}
1955
1956/* proc for register dump */
1957static void snd_ali_proc_read(struct snd_info_entry *entry,
1958			      struct snd_info_buffer *buf)
1959{
1960	struct snd_ali *codec = entry->private_data;
1961	int i;
1962	for (i = 0; i < 256 ; i+= 4)
1963		snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
1964}
1965
1966static void snd_ali_proc_init(struct snd_ali *codec)
1967{
1968	snd_card_ro_proc_new(codec->card, "ali5451", codec, snd_ali_proc_read);
1969}
1970
1971static int snd_ali_resources(struct snd_ali *codec)
1972{
1973	int err;
1974
1975	dev_dbg(codec->card->dev, "resources allocation ...\n");
1976	err = pcim_request_all_regions(codec->pci, "ALI 5451");
1977	if (err < 0)
1978		return err;
1979	codec->port = pci_resource_start(codec->pci, 0);
1980
1981	if (devm_request_irq(&codec->pci->dev, codec->pci->irq,
1982			     snd_ali_card_interrupt,
1983			     IRQF_SHARED, KBUILD_MODNAME, codec)) {
1984		dev_err(codec->card->dev, "Unable to request irq.\n");
1985		return -EBUSY;
1986	}
1987	codec->irq = codec->pci->irq;
1988	codec->card->sync_irq = codec->irq;
1989	dev_dbg(codec->card->dev, "resources allocated.\n");
1990	return 0;
1991}
1992
1993static int snd_ali_create(struct snd_card *card,
1994			  struct pci_dev *pci,
1995			  int pcm_streams,
1996			  int spdif_support)
1997{
1998	struct snd_ali *codec = card->private_data;
1999	int i, err;
2000	unsigned short cmdw;
2001
2002	dev_dbg(card->dev, "creating ...\n");
2003
2004	/* enable PCI device */
2005	err = pcim_enable_device(pci);
2006	if (err < 0)
2007		return err;
2008	/* check, if we can restrict PCI DMA transfers to 31 bits */
2009	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(31))) {
2010		dev_err(card->dev,
2011			"architecture does not support 31bit PCI busmaster DMA\n");
2012		return -ENXIO;
2013	}
2014
2015	spin_lock_init(&codec->reg_lock);
2016	spin_lock_init(&codec->voice_alloc);
2017
2018	codec->card = card;
2019	codec->pci = pci;
2020	codec->irq = -1;
2021	codec->revision = pci->revision;
2022	codec->spdif_support = spdif_support;
2023
2024	if (pcm_streams < 1)
2025		pcm_streams = 1;
2026	if (pcm_streams > 32)
2027		pcm_streams = 32;
2028	
2029	pci_set_master(pci);
2030	pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2031	if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2032		cmdw |= PCI_COMMAND_IO;
2033		pci_write_config_word(pci, PCI_COMMAND, cmdw);
2034	}
2035	
2036	if (snd_ali_resources(codec))
2037		return -EBUSY;
2038	card->private_free = snd_ali_free;
2039
2040	codec->synth.chmap = 0;
2041	codec->synth.chcnt = 0;
2042	codec->spdif_mask = 0;
2043	codec->synth.synthcount = 0;
2044
2045	if (codec->revision == ALI_5451_V02)
2046		codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2047	else
2048		codec->chregs.regs.ac97read = ALI_AC97_READ;
2049	codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2050
2051	codec->chregs.regs.start  = ALI_START;
2052	codec->chregs.regs.stop   = ALI_STOP;
2053	codec->chregs.regs.aint   = ALI_AINT;
2054	codec->chregs.regs.ainten = ALI_AINTEN;
2055
2056	codec->chregs.data.start  = 0x00;
2057	codec->chregs.data.stop   = 0x00;
2058	codec->chregs.data.aint   = 0x00;
2059	codec->chregs.data.ainten = 0x00;
2060
2061	/* M1533: southbridge */
2062	codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2063	if (!codec->pci_m1533) {
2064		dev_err(card->dev, "cannot find ALi 1533 chip.\n");
2065		return -ENODEV;
2066	}
2067	/* M7101: power management */
2068	codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2069	if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2070		dev_err(card->dev, "cannot find ALi 7101 chip.\n");
2071		return -ENODEV;
2072	}
2073
2074	/* initialise synth voices*/
2075	for (i = 0; i < ALI_CHANNELS; i++)
2076		codec->synth.voices[i].number = i;
2077
2078	err = snd_ali_chip_init(codec);
2079	if (err < 0) {
2080		dev_err(card->dev, "ali create: chip init error.\n");
2081		return err;
2082	}
2083
2084	snd_ali_enable_address_interrupt(codec);
2085	codec->hw_initialized = 1;
2086	return 0;
2087}
2088
2089static int __snd_ali_probe(struct pci_dev *pci,
2090			   const struct pci_device_id *pci_id)
2091{
2092	struct snd_card *card;
2093	struct snd_ali *codec;
2094	int err;
2095
2096	dev_dbg(&pci->dev, "probe ...\n");
2097
2098	err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
2099				sizeof(*codec), &card);
2100	if (err < 0)
2101		return err;
2102	codec = card->private_data;
2103
2104	err = snd_ali_create(card, pci, pcm_channels, spdif);
2105	if (err < 0)
2106		return err;
2107
2108	dev_dbg(&pci->dev, "mixer building ...\n");
2109	err = snd_ali_mixer(codec);
2110	if (err < 0)
2111		return err;
2112	
2113	dev_dbg(&pci->dev, "pcm building ...\n");
2114	err = snd_ali_build_pcms(codec);
2115	if (err < 0)
2116		return err;
2117
2118	snd_ali_proc_init(codec);
2119
2120	strscpy(card->driver, "ALI5451");
2121	strscpy(card->shortname, "ALI 5451");
2122	
2123	sprintf(card->longname, "%s at 0x%lx, irq %i",
2124		card->shortname, codec->port, codec->irq);
2125
2126	dev_dbg(&pci->dev, "register card.\n");
2127	err = snd_card_register(card);
2128	if (err < 0)
2129		return err;
2130
2131	pci_set_drvdata(pci, card);
2132	return 0;
2133}
2134
2135static int snd_ali_probe(struct pci_dev *pci,
2136			 const struct pci_device_id *pci_id)
2137{
2138	return snd_card_free_on_error(&pci->dev, __snd_ali_probe(pci, pci_id));
2139}
2140
2141static struct pci_driver ali5451_driver = {
2142	.name = KBUILD_MODNAME,
2143	.id_table = snd_ali_ids,
2144	.probe = snd_ali_probe,
2145	.driver = {
2146		.pm = &ali_pm,
2147	},
2148};                                
2149
2150module_pci_driver(ali5451_driver);
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