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fm801.c

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linux-6.19.14/sound/pci/fm801.c C 
   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  The driver for the ForteMedia FM801 based soundcards
   4 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   5 */
   6
   7#include <linux/delay.h>
   8#include <linux/init.h>
   9#include <linux/interrupt.h>
  10#include <linux/io.h>
  11#include <linux/pci.h>
  12#include <linux/slab.h>
  13#include <linux/module.h>
  14#include <sound/core.h>
  15#include <sound/pcm.h>
  16#include <sound/tlv.h>
  17#include <sound/ac97_codec.h>
  18#include <sound/mpu401.h>
  19#include <sound/opl3.h>
  20#include <sound/initval.h>
  21
  22#ifdef CONFIG_SND_FM801_TEA575X_BOOL
  23#include <media/drv-intf/tea575x.h>
  24#endif
  25
  26MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  27MODULE_DESCRIPTION("ForteMedia FM801");
  28MODULE_LICENSE("GPL");
  29
  30static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
  31static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
  32static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
  33/*
  34 *  Enable TEA575x tuner
  35 *    1 = MediaForte 256-PCS
  36 *    2 = MediaForte 256-PCP
  37 *    3 = MediaForte 64-PCR
  38 *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
  39 *  High 16-bits are video (radio) device number + 1
  40 */
  41static int tea575x_tuner[SNDRV_CARDS];
  42static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
  43
  44module_param_array(index, int, NULL, 0444);
  45MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
  46module_param_array(id, charp, NULL, 0444);
  47MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
  48module_param_array(enable, bool, NULL, 0444);
  49MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
  50module_param_array(tea575x_tuner, int, NULL, 0444);
  51MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only).");
  52module_param_array(radio_nr, int, NULL, 0444);
  53MODULE_PARM_DESC(radio_nr, "Radio device numbers");
  54
  55
  56#define TUNER_DISABLED		(1<<3)
  57#define TUNER_ONLY		(1<<4)
  58#define TUNER_TYPE_MASK		(~TUNER_ONLY & 0xFFFF)
  59
  60/*
  61 *  Direct registers
  62 */
  63
  64#define fm801_writew(chip,reg,value)	outw((value), chip->port + FM801_##reg)
  65#define fm801_readw(chip,reg)		inw(chip->port + FM801_##reg)
  66
  67#define fm801_writel(chip,reg,value)	outl((value), chip->port + FM801_##reg)
  68
  69#define FM801_PCM_VOL		0x00	/* PCM Output Volume */
  70#define FM801_FM_VOL		0x02	/* FM Output Volume */
  71#define FM801_I2S_VOL		0x04	/* I2S Volume */
  72#define FM801_REC_SRC		0x06	/* Record Source */
  73#define FM801_PLY_CTRL		0x08	/* Playback Control */
  74#define FM801_PLY_COUNT		0x0a	/* Playback Count */
  75#define FM801_PLY_BUF1		0x0c	/* Playback Bufer I */
  76#define FM801_PLY_BUF2		0x10	/* Playback Buffer II */
  77#define FM801_CAP_CTRL		0x14	/* Capture Control */
  78#define FM801_CAP_COUNT		0x16	/* Capture Count */
  79#define FM801_CAP_BUF1		0x18	/* Capture Buffer I */
  80#define FM801_CAP_BUF2		0x1c	/* Capture Buffer II */
  81#define FM801_CODEC_CTRL	0x22	/* Codec Control */
  82#define FM801_I2S_MODE		0x24	/* I2S Mode Control */
  83#define FM801_VOLUME		0x26	/* Volume Up/Down/Mute Status */
  84#define FM801_I2C_CTRL		0x29	/* I2C Control */
  85#define FM801_AC97_CMD		0x2a	/* AC'97 Command */
  86#define FM801_AC97_DATA		0x2c	/* AC'97 Data */
  87#define FM801_MPU401_DATA	0x30	/* MPU401 Data */
  88#define FM801_MPU401_CMD	0x31	/* MPU401 Command */
  89#define FM801_GPIO_CTRL		0x52	/* General Purpose I/O Control */
  90#define FM801_GEN_CTRL		0x54	/* General Control */
  91#define FM801_IRQ_MASK		0x56	/* Interrupt Mask */
  92#define FM801_IRQ_STATUS	0x5a	/* Interrupt Status */
  93#define FM801_OPL3_BANK0	0x68	/* OPL3 Status Read / Bank 0 Write */
  94#define FM801_OPL3_DATA0	0x69	/* OPL3 Data 0 Write */
  95#define FM801_OPL3_BANK1	0x6a	/* OPL3 Bank 1 Write */
  96#define FM801_OPL3_DATA1	0x6b	/* OPL3 Bank 1 Write */
  97#define FM801_POWERDOWN		0x70	/* Blocks Power Down Control */
  98
  99/* codec access */
 100#define FM801_AC97_READ		(1<<7)	/* read=1, write=0 */
 101#define FM801_AC97_VALID	(1<<8)	/* port valid=1 */
 102#define FM801_AC97_BUSY		(1<<9)	/* busy=1 */
 103#define FM801_AC97_ADDR_SHIFT	10	/* codec id (2bit) */
 104
 105/* playback and record control register bits */
 106#define FM801_BUF1_LAST		(1<<1)
 107#define FM801_BUF2_LAST		(1<<2)
 108#define FM801_START		(1<<5)
 109#define FM801_PAUSE		(1<<6)
 110#define FM801_IMMED_STOP	(1<<7)
 111#define FM801_RATE_SHIFT	8
 112#define FM801_RATE_MASK		(15 << FM801_RATE_SHIFT)
 113#define FM801_CHANNELS_4	(1<<12)	/* playback only */
 114#define FM801_CHANNELS_6	(2<<12)	/* playback only */
 115#define FM801_CHANNELS_6MS	(3<<12)	/* playback only */
 116#define FM801_CHANNELS_MASK	(3<<12)
 117#define FM801_16BIT		(1<<14)
 118#define FM801_STEREO		(1<<15)
 119
 120/* IRQ status bits */
 121#define FM801_IRQ_PLAYBACK	(1<<8)
 122#define FM801_IRQ_CAPTURE	(1<<9)
 123#define FM801_IRQ_VOLUME	(1<<14)
 124#define FM801_IRQ_MPU		(1<<15)
 125
 126/* GPIO control register */
 127#define FM801_GPIO_GP0		(1<<0)	/* read/write */
 128#define FM801_GPIO_GP1		(1<<1)
 129#define FM801_GPIO_GP2		(1<<2)
 130#define FM801_GPIO_GP3		(1<<3)
 131#define FM801_GPIO_GP(x)	(1<<(0+(x)))
 132#define FM801_GPIO_GD0		(1<<8)	/* directions: 1 = input, 0 = output*/
 133#define FM801_GPIO_GD1		(1<<9)
 134#define FM801_GPIO_GD2		(1<<10)
 135#define FM801_GPIO_GD3		(1<<11)
 136#define FM801_GPIO_GD(x)	(1<<(8+(x)))
 137#define FM801_GPIO_GS0		(1<<12)	/* function select: */
 138#define FM801_GPIO_GS1		(1<<13)	/*    1 = GPIO */
 139#define FM801_GPIO_GS2		(1<<14)	/*    0 = other (S/PDIF, VOL) */
 140#define FM801_GPIO_GS3		(1<<15)
 141#define FM801_GPIO_GS(x)	(1<<(12+(x)))
 142	
 143/**
 144 * struct fm801 - describes FM801 chip
 145 * @dev:		device for this chio
 146 * @irq:		irq number
 147 * @port:		I/O port number
 148 * @multichannel:	multichannel support
 149 * @secondary:		secondary codec
 150 * @secondary_addr:	address of the secondary codec
 151 * @tea575x_tuner:	tuner access method & flags
 152 * @ply_ctrl:		playback control
 153 * @cap_ctrl:		capture control
 154 * @ply_buffer:		playback buffer
 155 * @ply_buf:		playback buffer index
 156 * @ply_count:		playback buffer count
 157 * @ply_size:		playback buffer size
 158 * @ply_pos:		playback position
 159 * @cap_buffer:		capture buffer
 160 * @cap_buf:		capture buffer index
 161 * @cap_count:		capture buffer count
 162 * @cap_size:		capture buffer size
 163 * @cap_pos:		capture position
 164 * @ac97_bus:		ac97 bus handle
 165 * @ac97:		ac97 handle
 166 * @ac97_sec:		ac97 secondary handle
 167 * @card:		ALSA card
 168 * @pcm:		PCM devices
 169 * @rmidi:		rmidi device
 170 * @playback_substream:	substream for playback
 171 * @capture_substream:	substream for capture
 172 * @p_dma_size:		playback DMA size
 173 * @c_dma_size:		capture DMA size
 174 * @reg_lock:		lock
 175 * @proc_entry:		/proc entry
 176 * @v4l2_dev:		v4l2 device
 177 * @tea:		tea575a structure
 178 * @saved_regs:		context saved during suspend
 179 */
 180struct fm801 {
 181	struct device *dev;
 182	int irq;
 183
 184	unsigned long port;
 185	unsigned int multichannel: 1,
 186		     secondary: 1;
 187	unsigned char secondary_addr;
 188	unsigned int tea575x_tuner;
 189
 190	unsigned short ply_ctrl;
 191	unsigned short cap_ctrl;
 192
 193	unsigned long ply_buffer;
 194	unsigned int ply_buf;
 195	unsigned int ply_count;
 196	unsigned int ply_size;
 197	unsigned int ply_pos;
 198
 199	unsigned long cap_buffer;
 200	unsigned int cap_buf;
 201	unsigned int cap_count;
 202	unsigned int cap_size;
 203	unsigned int cap_pos;
 204
 205	struct snd_ac97_bus *ac97_bus;
 206	struct snd_ac97 *ac97;
 207	struct snd_ac97 *ac97_sec;
 208
 209	struct snd_card *card;
 210	struct snd_pcm *pcm;
 211	struct snd_rawmidi *rmidi;
 212	struct snd_pcm_substream *playback_substream;
 213	struct snd_pcm_substream *capture_substream;
 214	unsigned int p_dma_size;
 215	unsigned int c_dma_size;
 216
 217	spinlock_t reg_lock;
 218	struct snd_info_entry *proc_entry;
 219
 220#ifdef CONFIG_SND_FM801_TEA575X_BOOL
 221	struct v4l2_device v4l2_dev;
 222	struct snd_tea575x tea;
 223#endif
 224
 225	u16 saved_regs[0x20];
 226};
 227
 228/*
 229 * IO accessors
 230 */
 231
 232static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
 233{
 234	outw(value, chip->port + offset);
 235}
 236
 237static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
 238{
 239	return inw(chip->port + offset);
 240}
 241
 242static const struct pci_device_id snd_fm801_ids[] = {
 243	{ 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
 244	{ 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
 245	{ 0, }
 246};
 247
 248MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
 249
 250/*
 251 *  common I/O routines
 252 */
 253
 254static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
 255{
 256	unsigned int idx;
 257
 258	for (idx = 0; idx < iterations; idx++) {
 259		if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
 260			return true;
 261		udelay(10);
 262	}
 263	return false;
 264}
 265
 266static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
 267{
 268	unsigned int idx;
 269
 270	for (idx = 0; idx < iterations; idx++) {
 271		if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
 272			return true;
 273		udelay(10);
 274	}
 275	return false;
 276}
 277
 278static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
 279				 unsigned short mask, unsigned short value)
 280{
 281	int change;
 282	unsigned short old, new;
 283
 284	guard(spinlock_irqsave)(&chip->reg_lock);
 285	old = fm801_ioread16(chip, reg);
 286	new = (old & ~mask) | value;
 287	change = old != new;
 288	if (change)
 289		fm801_iowrite16(chip, reg, new);
 290	return change;
 291}
 292
 293static void snd_fm801_codec_write(struct snd_ac97 *ac97,
 294				  unsigned short reg,
 295				  unsigned short val)
 296{
 297	struct fm801 *chip = ac97->private_data;
 298
 299	/*
 300	 *  Wait until the codec interface is not ready..
 301	 */
 302	if (!fm801_ac97_is_ready(chip, 100)) {
 303		dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
 304		return;
 305	}
 306
 307	/* write data and address */
 308	fm801_writew(chip, AC97_DATA, val);
 309	fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
 310	/*
 311	 *  Wait until the write command is not completed..
 312	 */
 313	if (!fm801_ac97_is_ready(chip, 1000))
 314		dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
 315		ac97->num);
 316}
 317
 318static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 319{
 320	struct fm801 *chip = ac97->private_data;
 321
 322	/*
 323	 *  Wait until the codec interface is not ready..
 324	 */
 325	if (!fm801_ac97_is_ready(chip, 100)) {
 326		dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
 327		return 0;
 328	}
 329
 330	/* read command */
 331	fm801_writew(chip, AC97_CMD,
 332		     reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
 333	if (!fm801_ac97_is_ready(chip, 100)) {
 334		dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
 335			ac97->num);
 336		return 0;
 337	}
 338
 339	if (!fm801_ac97_is_valid(chip, 1000)) {
 340		dev_err(chip->card->dev,
 341			"AC'97 interface #%d is not valid (2)\n", ac97->num);
 342		return 0;
 343	}
 344
 345	return fm801_readw(chip, AC97_DATA);
 346}
 347
 348static const unsigned int rates[] = {
 349  5500,  8000,  9600, 11025,
 350  16000, 19200, 22050, 32000,
 351  38400, 44100, 48000
 352};
 353
 354static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
 355	.count = ARRAY_SIZE(rates),
 356	.list = rates,
 357	.mask = 0,
 358};
 359
 360static const unsigned int channels[] = {
 361  2, 4, 6
 362};
 363
 364static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
 365	.count = ARRAY_SIZE(channels),
 366	.list = channels,
 367	.mask = 0,
 368};
 369
 370/*
 371 *  Sample rate routines
 372 */
 373
 374static unsigned short snd_fm801_rate_bits(unsigned int rate)
 375{
 376	unsigned int idx;
 377
 378	for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
 379		if (rates[idx] == rate)
 380			return idx;
 381	snd_BUG();
 382	return ARRAY_SIZE(rates) - 1;
 383}
 384
 385/*
 386 *  PCM part
 387 */
 388
 389static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
 390				      int cmd)
 391{
 392	struct fm801 *chip = snd_pcm_substream_chip(substream);
 393
 394	guard(spinlock)(&chip->reg_lock);
 395	switch (cmd) {
 396	case SNDRV_PCM_TRIGGER_START:
 397		chip->ply_ctrl &= ~(FM801_BUF1_LAST |
 398				     FM801_BUF2_LAST |
 399				     FM801_PAUSE);
 400		chip->ply_ctrl |= FM801_START |
 401				   FM801_IMMED_STOP;
 402		break;
 403	case SNDRV_PCM_TRIGGER_STOP:
 404		chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
 405		break;
 406	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 407	case SNDRV_PCM_TRIGGER_SUSPEND:
 408		chip->ply_ctrl |= FM801_PAUSE;
 409		break;
 410	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 411	case SNDRV_PCM_TRIGGER_RESUME:
 412		chip->ply_ctrl &= ~FM801_PAUSE;
 413		break;
 414	default:
 415		snd_BUG();
 416		return -EINVAL;
 417	}
 418	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 419	return 0;
 420}
 421
 422static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
 423				     int cmd)
 424{
 425	struct fm801 *chip = snd_pcm_substream_chip(substream);
 426
 427	guard(spinlock)(&chip->reg_lock);
 428	switch (cmd) {
 429	case SNDRV_PCM_TRIGGER_START:
 430		chip->cap_ctrl &= ~(FM801_BUF1_LAST |
 431				     FM801_BUF2_LAST |
 432				     FM801_PAUSE);
 433		chip->cap_ctrl |= FM801_START |
 434				   FM801_IMMED_STOP;
 435		break;
 436	case SNDRV_PCM_TRIGGER_STOP:
 437		chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
 438		break;
 439	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 440	case SNDRV_PCM_TRIGGER_SUSPEND:
 441		chip->cap_ctrl |= FM801_PAUSE;
 442		break;
 443	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 444	case SNDRV_PCM_TRIGGER_RESUME:
 445		chip->cap_ctrl &= ~FM801_PAUSE;
 446		break;
 447	default:
 448		snd_BUG();
 449		return -EINVAL;
 450	}
 451	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 452	return 0;
 453}
 454
 455static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
 456{
 457	struct fm801 *chip = snd_pcm_substream_chip(substream);
 458	struct snd_pcm_runtime *runtime = substream->runtime;
 459
 460	chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
 461	chip->ply_count = snd_pcm_lib_period_bytes(substream);
 462	guard(spinlock_irq)(&chip->reg_lock);
 463	chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
 464			     FM801_STEREO | FM801_RATE_MASK |
 465			     FM801_CHANNELS_MASK);
 466	if (snd_pcm_format_width(runtime->format) == 16)
 467		chip->ply_ctrl |= FM801_16BIT;
 468	if (runtime->channels > 1) {
 469		chip->ply_ctrl |= FM801_STEREO;
 470		if (runtime->channels == 4)
 471			chip->ply_ctrl |= FM801_CHANNELS_4;
 472		else if (runtime->channels == 6)
 473			chip->ply_ctrl |= FM801_CHANNELS_6;
 474	}
 475	chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 476	chip->ply_buf = 0;
 477	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 478	fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
 479	chip->ply_buffer = runtime->dma_addr;
 480	chip->ply_pos = 0;
 481	fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
 482	fm801_writel(chip, PLY_BUF2,
 483		     chip->ply_buffer + (chip->ply_count % chip->ply_size));
 484	return 0;
 485}
 486
 487static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
 488{
 489	struct fm801 *chip = snd_pcm_substream_chip(substream);
 490	struct snd_pcm_runtime *runtime = substream->runtime;
 491
 492	chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
 493	chip->cap_count = snd_pcm_lib_period_bytes(substream);
 494	guard(spinlock_irq)(&chip->reg_lock);
 495	chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
 496			     FM801_STEREO | FM801_RATE_MASK);
 497	if (snd_pcm_format_width(runtime->format) == 16)
 498		chip->cap_ctrl |= FM801_16BIT;
 499	if (runtime->channels > 1)
 500		chip->cap_ctrl |= FM801_STEREO;
 501	chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 502	chip->cap_buf = 0;
 503	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 504	fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
 505	chip->cap_buffer = runtime->dma_addr;
 506	chip->cap_pos = 0;
 507	fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
 508	fm801_writel(chip, CAP_BUF2,
 509		     chip->cap_buffer + (chip->cap_count % chip->cap_size));
 510	return 0;
 511}
 512
 513static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
 514{
 515	struct fm801 *chip = snd_pcm_substream_chip(substream);
 516	size_t ptr;
 517
 518	if (!(chip->ply_ctrl & FM801_START))
 519		return 0;
 520	guard(spinlock)(&chip->reg_lock);
 521	ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
 522	if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
 523		ptr += chip->ply_count;
 524		ptr %= chip->ply_size;
 525	}
 526	return bytes_to_frames(substream->runtime, ptr);
 527}
 528
 529static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
 530{
 531	struct fm801 *chip = snd_pcm_substream_chip(substream);
 532	size_t ptr;
 533
 534	if (!(chip->cap_ctrl & FM801_START))
 535		return 0;
 536	guard(spinlock)(&chip->reg_lock);
 537	ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
 538	if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
 539		ptr += chip->cap_count;
 540		ptr %= chip->cap_size;
 541	}
 542	return bytes_to_frames(substream->runtime, ptr);
 543}
 544
 545static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
 546{
 547	struct fm801 *chip = dev_id;
 548	unsigned short status;
 549	unsigned int tmp;
 550
 551	status = fm801_readw(chip, IRQ_STATUS);
 552	status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
 553	if (! status)
 554		return IRQ_NONE;
 555	/* ack first */
 556	fm801_writew(chip, IRQ_STATUS, status);
 557	if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
 558		scoped_guard(spinlock, &chip->reg_lock) {
 559			chip->ply_buf++;
 560			chip->ply_pos += chip->ply_count;
 561			chip->ply_pos %= chip->ply_size;
 562			tmp = chip->ply_pos + chip->ply_count;
 563			tmp %= chip->ply_size;
 564			if (chip->ply_buf & 1)
 565				fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
 566			else
 567				fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
 568		}
 569		snd_pcm_period_elapsed(chip->playback_substream);
 570	}
 571	if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
 572		scoped_guard(spinlock, &chip->reg_lock) {
 573			chip->cap_buf++;
 574			chip->cap_pos += chip->cap_count;
 575			chip->cap_pos %= chip->cap_size;
 576			tmp = chip->cap_pos + chip->cap_count;
 577			tmp %= chip->cap_size;
 578			if (chip->cap_buf & 1)
 579				fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
 580			else
 581				fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
 582		}
 583		snd_pcm_period_elapsed(chip->capture_substream);
 584	}
 585	if (chip->rmidi && (status & FM801_IRQ_MPU))
 586		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
 587	if (status & FM801_IRQ_VOLUME) {
 588		/* TODO */
 589	}
 590
 591	return IRQ_HANDLED;
 592}
 593
 594static const struct snd_pcm_hardware snd_fm801_playback =
 595{
 596	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 597				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 598				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 599				 SNDRV_PCM_INFO_MMAP_VALID),
 600	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 601	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 602	.rate_min =		5500,
 603	.rate_max =		48000,
 604	.channels_min =		1,
 605	.channels_max =		2,
 606	.buffer_bytes_max =	(128*1024),
 607	.period_bytes_min =	64,
 608	.period_bytes_max =	(128*1024),
 609	.periods_min =		1,
 610	.periods_max =		1024,
 611	.fifo_size =		0,
 612};
 613
 614static const struct snd_pcm_hardware snd_fm801_capture =
 615{
 616	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 617				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 618				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 619				 SNDRV_PCM_INFO_MMAP_VALID),
 620	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 621	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 622	.rate_min =		5500,
 623	.rate_max =		48000,
 624	.channels_min =		1,
 625	.channels_max =		2,
 626	.buffer_bytes_max =	(128*1024),
 627	.period_bytes_min =	64,
 628	.period_bytes_max =	(128*1024),
 629	.periods_min =		1,
 630	.periods_max =		1024,
 631	.fifo_size =		0,
 632};
 633
 634static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
 635{
 636	struct fm801 *chip = snd_pcm_substream_chip(substream);
 637	struct snd_pcm_runtime *runtime = substream->runtime;
 638	int err;
 639
 640	chip->playback_substream = substream;
 641	runtime->hw = snd_fm801_playback;
 642	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 643				   &hw_constraints_rates);
 644	if (chip->multichannel) {
 645		runtime->hw.channels_max = 6;
 646		snd_pcm_hw_constraint_list(runtime, 0,
 647					   SNDRV_PCM_HW_PARAM_CHANNELS,
 648					   &hw_constraints_channels);
 649	}
 650	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 651	if (err < 0)
 652		return err;
 653	return 0;
 654}
 655
 656static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
 657{
 658	struct fm801 *chip = snd_pcm_substream_chip(substream);
 659	struct snd_pcm_runtime *runtime = substream->runtime;
 660	int err;
 661
 662	chip->capture_substream = substream;
 663	runtime->hw = snd_fm801_capture;
 664	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 665				   &hw_constraints_rates);
 666	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 667	if (err < 0)
 668		return err;
 669	return 0;
 670}
 671
 672static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
 673{
 674	struct fm801 *chip = snd_pcm_substream_chip(substream);
 675
 676	chip->playback_substream = NULL;
 677	return 0;
 678}
 679
 680static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
 681{
 682	struct fm801 *chip = snd_pcm_substream_chip(substream);
 683
 684	chip->capture_substream = NULL;
 685	return 0;
 686}
 687
 688static const struct snd_pcm_ops snd_fm801_playback_ops = {
 689	.open =		snd_fm801_playback_open,
 690	.close =	snd_fm801_playback_close,
 691	.prepare =	snd_fm801_playback_prepare,
 692	.trigger =	snd_fm801_playback_trigger,
 693	.pointer =	snd_fm801_playback_pointer,
 694};
 695
 696static const struct snd_pcm_ops snd_fm801_capture_ops = {
 697	.open =		snd_fm801_capture_open,
 698	.close =	snd_fm801_capture_close,
 699	.prepare =	snd_fm801_capture_prepare,
 700	.trigger =	snd_fm801_capture_trigger,
 701	.pointer =	snd_fm801_capture_pointer,
 702};
 703
 704static int snd_fm801_pcm(struct fm801 *chip, int device)
 705{
 706	struct pci_dev *pdev = to_pci_dev(chip->dev);
 707	struct snd_pcm *pcm;
 708	int err;
 709
 710	err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm);
 711	if (err < 0)
 712		return err;
 713
 714	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
 715	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
 716
 717	pcm->private_data = chip;
 718	pcm->info_flags = 0;
 719	strscpy(pcm->name, "FM801");
 720	chip->pcm = pcm;
 721
 722	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &pdev->dev,
 723				       chip->multichannel ? 128*1024 : 64*1024, 128*1024);
 724
 725	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 726				     snd_pcm_alt_chmaps,
 727				     chip->multichannel ? 6 : 2, 0,
 728				     NULL);
 729}
 730
 731/*
 732 *  TEA5757 radio
 733 */
 734
 735#ifdef CONFIG_SND_FM801_TEA575X_BOOL
 736
 737/* GPIO to TEA575x maps */
 738struct snd_fm801_tea575x_gpio {
 739	u8 data, clk, wren, most;
 740	char *name;
 741};
 742
 743static const struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
 744	{ .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
 745	{ .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
 746	{ .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
 747};
 748
 749#define get_tea575x_gpio(chip) \
 750	(&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
 751
 752static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
 753{
 754	struct fm801 *chip = tea->private_data;
 755	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 756	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 757
 758	reg &= ~(FM801_GPIO_GP(gpio.data) |
 759		 FM801_GPIO_GP(gpio.clk) |
 760		 FM801_GPIO_GP(gpio.wren));
 761
 762	reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
 763	reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
 764	/* WRITE_ENABLE is inverted */
 765	reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
 766
 767	fm801_writew(chip, GPIO_CTRL, reg);
 768}
 769
 770static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
 771{
 772	struct fm801 *chip = tea->private_data;
 773	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 774	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 775	u8 ret;
 776
 777	ret = 0;
 778	if (reg & FM801_GPIO_GP(gpio.data))
 779		ret |= TEA575X_DATA;
 780	if (reg & FM801_GPIO_GP(gpio.most))
 781		ret |= TEA575X_MOST;
 782	return ret;
 783}
 784
 785static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
 786{
 787	struct fm801 *chip = tea->private_data;
 788	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 789	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 790
 791	/* use GPIO lines and set write enable bit */
 792	reg |= FM801_GPIO_GS(gpio.data) |
 793	       FM801_GPIO_GS(gpio.wren) |
 794	       FM801_GPIO_GS(gpio.clk) |
 795	       FM801_GPIO_GS(gpio.most);
 796	if (output) {
 797		/* all of lines are in the write direction */
 798		/* clear data and clock lines */
 799		reg &= ~(FM801_GPIO_GD(gpio.data) |
 800			 FM801_GPIO_GD(gpio.wren) |
 801			 FM801_GPIO_GD(gpio.clk) |
 802			 FM801_GPIO_GP(gpio.data) |
 803			 FM801_GPIO_GP(gpio.clk) |
 804			 FM801_GPIO_GP(gpio.wren));
 805	} else {
 806		/* use GPIO lines, set data direction to input */
 807		reg |= FM801_GPIO_GD(gpio.data) |
 808		       FM801_GPIO_GD(gpio.most) |
 809		       FM801_GPIO_GP(gpio.data) |
 810		       FM801_GPIO_GP(gpio.most) |
 811		       FM801_GPIO_GP(gpio.wren);
 812		/* all of lines are in the write direction, except data */
 813		/* clear data, write enable and clock lines */
 814		reg &= ~(FM801_GPIO_GD(gpio.wren) |
 815			 FM801_GPIO_GD(gpio.clk) |
 816			 FM801_GPIO_GP(gpio.clk));
 817	}
 818
 819	fm801_writew(chip, GPIO_CTRL, reg);
 820}
 821
 822static const struct snd_tea575x_ops snd_fm801_tea_ops = {
 823	.set_pins = snd_fm801_tea575x_set_pins,
 824	.get_pins = snd_fm801_tea575x_get_pins,
 825	.set_direction = snd_fm801_tea575x_set_direction,
 826};
 827#endif
 828
 829/*
 830 *  Mixer routines
 831 */
 832
 833#define FM801_SINGLE(xname, reg, shift, mask, invert) \
 834{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
 835  .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
 836  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 837
 838static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
 839				 struct snd_ctl_elem_info *uinfo)
 840{
 841	int mask = (kcontrol->private_value >> 16) & 0xff;
 842
 843	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 844	uinfo->count = 1;
 845	uinfo->value.integer.min = 0;
 846	uinfo->value.integer.max = mask;
 847	return 0;
 848}
 849
 850static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
 851				struct snd_ctl_elem_value *ucontrol)
 852{
 853	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 854	int reg = kcontrol->private_value & 0xff;
 855	int shift = (kcontrol->private_value >> 8) & 0xff;
 856	int mask = (kcontrol->private_value >> 16) & 0xff;
 857	int invert = (kcontrol->private_value >> 24) & 0xff;
 858	long *value = ucontrol->value.integer.value;
 859
 860	value[0] = (fm801_ioread16(chip, reg) >> shift) & mask;
 861	if (invert)
 862		value[0] = mask - value[0];
 863	return 0;
 864}
 865
 866static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
 867				struct snd_ctl_elem_value *ucontrol)
 868{
 869	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 870	int reg = kcontrol->private_value & 0xff;
 871	int shift = (kcontrol->private_value >> 8) & 0xff;
 872	int mask = (kcontrol->private_value >> 16) & 0xff;
 873	int invert = (kcontrol->private_value >> 24) & 0xff;
 874	unsigned short val;
 875
 876	val = (ucontrol->value.integer.value[0] & mask);
 877	if (invert)
 878		val = mask - val;
 879	return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
 880}
 881
 882#define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 883{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
 884  .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 885  .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 886#define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 887{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 888  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 889  .name = xname, .info = snd_fm801_info_double, \
 890  .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 891  .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 892  .tlv = { .p = (xtlv) } }
 893
 894static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
 895				 struct snd_ctl_elem_info *uinfo)
 896{
 897	int mask = (kcontrol->private_value >> 16) & 0xff;
 898
 899	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 900	uinfo->count = 2;
 901	uinfo->value.integer.min = 0;
 902	uinfo->value.integer.max = mask;
 903	return 0;
 904}
 905
 906static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
 907				struct snd_ctl_elem_value *ucontrol)
 908{
 909	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 910        int reg = kcontrol->private_value & 0xff;
 911	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 912	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 913	int mask = (kcontrol->private_value >> 16) & 0xff;
 914	int invert = (kcontrol->private_value >> 24) & 0xff;
 915	long *value = ucontrol->value.integer.value;
 916
 917	guard(spinlock_irq)(&chip->reg_lock);
 918	value[0] = (fm801_ioread16(chip, reg) >> shift_left) & mask;
 919	value[1] = (fm801_ioread16(chip, reg) >> shift_right) & mask;
 920	if (invert) {
 921		value[0] = mask - value[0];
 922		value[1] = mask - value[1];
 923	}
 924	return 0;
 925}
 926
 927static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
 928				struct snd_ctl_elem_value *ucontrol)
 929{
 930	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 931	int reg = kcontrol->private_value & 0xff;
 932	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 933	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 934	int mask = (kcontrol->private_value >> 16) & 0xff;
 935	int invert = (kcontrol->private_value >> 24) & 0xff;
 936	unsigned short val1, val2;
 937 
 938	val1 = ucontrol->value.integer.value[0] & mask;
 939	val2 = ucontrol->value.integer.value[1] & mask;
 940	if (invert) {
 941		val1 = mask - val1;
 942		val2 = mask - val2;
 943	}
 944	return snd_fm801_update_bits(chip, reg,
 945				     (mask << shift_left) | (mask << shift_right),
 946				     (val1 << shift_left ) | (val2 << shift_right));
 947}
 948
 949static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
 950			      struct snd_ctl_elem_info *uinfo)
 951{
 952	static const char * const texts[5] = {
 953		"AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
 954	};
 955 
 956	return snd_ctl_enum_info(uinfo, 1, 5, texts);
 957}
 958
 959static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
 960			     struct snd_ctl_elem_value *ucontrol)
 961{
 962	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 963        unsigned short val;
 964 
 965	val = fm801_readw(chip, REC_SRC) & 7;
 966	if (val > 4)
 967		val = 4;
 968        ucontrol->value.enumerated.item[0] = val;
 969        return 0;
 970}
 971
 972static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
 973			     struct snd_ctl_elem_value *ucontrol)
 974{
 975	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 976        unsigned short val;
 977 
 978	val = ucontrol->value.enumerated.item[0];
 979	if (val > 4)
 980                return -EINVAL;
 981	return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
 982}
 983
 984static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
 985
 986#define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
 987
 988static const struct snd_kcontrol_new snd_fm801_controls[] = {
 989FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
 990		 db_scale_dsp),
 991FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
 992FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
 993		 db_scale_dsp),
 994FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
 995FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
 996		 db_scale_dsp),
 997FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
 998{
 999	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1000	.name = "Digital Capture Source",
1001	.info = snd_fm801_info_mux,
1002	.get = snd_fm801_get_mux,
1003	.put = snd_fm801_put_mux,
1004}
1005};
1006
1007#define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
1008
1009static const struct snd_kcontrol_new snd_fm801_controls_multi[] = {
1010FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
1011FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
1012FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
1013FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
1014FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
1015FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1016};
1017
1018static int snd_fm801_mixer(struct fm801 *chip)
1019{
1020	struct snd_ac97_template ac97;
1021	unsigned int i;
1022	int err;
1023	static const struct snd_ac97_bus_ops ops = {
1024		.write = snd_fm801_codec_write,
1025		.read = snd_fm801_codec_read,
1026	};
1027
1028	err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus);
1029	if (err < 0)
1030		return err;
1031
1032	memset(&ac97, 0, sizeof(ac97));
1033	ac97.private_data = chip;
1034	err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97);
1035	if (err < 0)
1036		return err;
1037	if (chip->secondary) {
1038		ac97.num = 1;
1039		ac97.addr = chip->secondary_addr;
1040		err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec);
1041		if (err < 0)
1042			return err;
1043	}
1044	for (i = 0; i < FM801_CONTROLS; i++) {
1045		err = snd_ctl_add(chip->card,
1046			snd_ctl_new1(&snd_fm801_controls[i], chip));
1047		if (err < 0)
1048			return err;
1049	}
1050	if (chip->multichannel) {
1051		for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1052			err = snd_ctl_add(chip->card,
1053				snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1054			if (err < 0)
1055				return err;
1056		}
1057	}
1058	return 0;
1059}
1060
1061/*
1062 *  initialization routines
1063 */
1064
1065static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1066			  unsigned short reg, unsigned long waits)
1067{
1068	unsigned long timeout = jiffies + waits;
1069
1070	fm801_writew(chip, AC97_CMD,
1071		     reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1072	udelay(5);
1073	do {
1074		if ((fm801_readw(chip, AC97_CMD) &
1075		     (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1076			return 0;
1077		schedule_timeout_uninterruptible(1);
1078	} while (time_after(timeout, jiffies));
1079	return -EIO;
1080}
1081
1082static int reset_codec(struct fm801 *chip)
1083{
1084	/* codec cold reset + AC'97 warm reset */
1085	fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1086	fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1087	udelay(100);
1088	fm801_writew(chip, CODEC_CTRL, 0);
1089
1090	return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1091}
1092
1093static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1094{
1095	unsigned short cmdw;
1096
1097	if (chip->multichannel) {
1098		if (chip->secondary_addr) {
1099			wait_for_codec(chip, chip->secondary_addr,
1100				       AC97_VENDOR_ID1, msecs_to_jiffies(50));
1101		} else {
1102			/* my card has the secondary codec */
1103			/* at address #3, so the loop is inverted */
1104			int i;
1105			for (i = 3; i > 0; i--) {
1106				if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1107						     msecs_to_jiffies(50))) {
1108					cmdw = fm801_readw(chip, AC97_DATA);
1109					if (cmdw != 0xffff && cmdw != 0) {
1110						chip->secondary = 1;
1111						chip->secondary_addr = i;
1112						break;
1113					}
1114				}
1115			}
1116		}
1117
1118		/* the recovery phase, it seems that probing for non-existing codec might */
1119		/* cause timeout problems */
1120		wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1121	}
1122}
1123
1124static void snd_fm801_chip_init(struct fm801 *chip)
1125{
1126	unsigned short cmdw;
1127
1128	/* init volume */
1129	fm801_writew(chip, PCM_VOL, 0x0808);
1130	fm801_writew(chip, FM_VOL, 0x9f1f);
1131	fm801_writew(chip, I2S_VOL, 0x8808);
1132
1133	/* I2S control - I2S mode */
1134	fm801_writew(chip, I2S_MODE, 0x0003);
1135
1136	/* interrupt setup */
1137	cmdw = fm801_readw(chip, IRQ_MASK);
1138	if (chip->irq < 0)
1139		cmdw |= 0x00c3;		/* mask everything, no PCM nor MPU */
1140	else
1141		cmdw &= ~0x0083;	/* unmask MPU, PLAYBACK & CAPTURE */
1142	fm801_writew(chip, IRQ_MASK, cmdw);
1143
1144	/* interrupt clear */
1145	fm801_writew(chip, IRQ_STATUS,
1146		     FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1147}
1148
1149static void snd_fm801_free(struct snd_card *card)
1150{
1151	struct fm801 *chip = card->private_data;
1152	unsigned short cmdw;
1153
1154	/* interrupt setup - mask everything */
1155	cmdw = fm801_readw(chip, IRQ_MASK);
1156	cmdw |= 0x00c3;
1157	fm801_writew(chip, IRQ_MASK, cmdw);
1158
1159#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1160	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1161		snd_tea575x_exit(&chip->tea);
1162		v4l2_device_unregister(&chip->v4l2_dev);
1163	}
1164#endif
1165}
1166
1167static int snd_fm801_create(struct snd_card *card,
1168			    struct pci_dev *pci,
1169			    int tea575x_tuner,
1170			    int radio_nr)
1171{
1172	struct fm801 *chip = card->private_data;
1173	int err;
1174
1175	err = pcim_enable_device(pci);
1176	if (err < 0)
1177		return err;
1178	spin_lock_init(&chip->reg_lock);
1179	chip->card = card;
1180	chip->dev = &pci->dev;
1181	chip->irq = -1;
1182	chip->tea575x_tuner = tea575x_tuner;
1183	err = pcim_request_all_regions(pci, "FM801");
1184	if (err < 0)
1185		return err;
1186	chip->port = pci_resource_start(pci, 0);
1187
1188	if (pci->revision >= 0xb1)	/* FM801-AU */
1189		chip->multichannel = 1;
1190
1191	if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1192		if (reset_codec(chip) < 0) {
1193			dev_info(chip->card->dev,
1194				 "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1195			chip->tea575x_tuner = 3 | TUNER_ONLY;
1196		} else {
1197			snd_fm801_chip_multichannel_init(chip);
1198		}
1199	}
1200
1201	if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1202		if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1203				IRQF_SHARED, KBUILD_MODNAME, chip)) {
1204			dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1205			return -EBUSY;
1206		}
1207		chip->irq = pci->irq;
1208		card->sync_irq = chip->irq;
1209		pci_set_master(pci);
1210	}
1211
1212	card->private_free = snd_fm801_free;
1213	snd_fm801_chip_init(chip);
1214
1215#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1216	err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1217	if (err < 0)
1218		return err;
1219	chip->tea.v4l2_dev = &chip->v4l2_dev;
1220	chip->tea.radio_nr = radio_nr;
1221	chip->tea.private_data = chip;
1222	chip->tea.ops = &snd_fm801_tea_ops;
1223	sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1224	if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1225	    (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1226		if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1227			dev_err(card->dev, "TEA575x radio not found\n");
1228			return -ENODEV;
1229		}
1230	} else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1231		unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1232
1233		/* autodetect tuner connection */
1234		for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1235			chip->tea575x_tuner = tea575x_tuner;
1236			if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1237				dev_info(card->dev,
1238					 "detected TEA575x radio type %s\n",
1239					   get_tea575x_gpio(chip)->name);
1240				break;
1241			}
1242		}
1243		if (tea575x_tuner == 4) {
1244			dev_err(card->dev, "TEA575x radio not found\n");
1245			chip->tea575x_tuner = TUNER_DISABLED;
1246		}
1247
1248		chip->tea575x_tuner |= tuner_only;
1249	}
1250	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1251		strscpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1252			sizeof(chip->tea.card));
1253	}
1254#endif
1255	return 0;
1256}
1257
1258static int __snd_card_fm801_probe(struct pci_dev *pci,
1259				  const struct pci_device_id *pci_id)
1260{
1261	static int dev;
1262	struct snd_card *card;
1263	struct fm801 *chip;
1264	struct snd_opl3 *opl3;
1265	int err;
1266
1267        if (dev >= SNDRV_CARDS)
1268                return -ENODEV;
1269	if (!enable[dev]) {
1270		dev++;
1271		return -ENOENT;
1272	}
1273
1274	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1275				sizeof(*chip), &card);
1276	if (err < 0)
1277		return err;
1278	chip = card->private_data;
1279	err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev]);
1280	if (err < 0)
1281		return err;
1282
1283	strscpy(card->driver, "FM801");
1284	strscpy(card->shortname, "ForteMedia FM801-");
1285	strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1286	sprintf(card->longname, "%s at 0x%lx, irq %i",
1287		card->shortname, chip->port, chip->irq);
1288
1289	if (chip->tea575x_tuner & TUNER_ONLY)
1290		goto __fm801_tuner_only;
1291
1292	err = snd_fm801_pcm(chip, 0);
1293	if (err < 0)
1294		return err;
1295	err = snd_fm801_mixer(chip);
1296	if (err < 0)
1297		return err;
1298	err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1299				  chip->port + FM801_MPU401_DATA,
1300				  MPU401_INFO_INTEGRATED |
1301				  MPU401_INFO_IRQ_HOOK,
1302				  -1, &chip->rmidi);
1303	if (err < 0)
1304		return err;
1305	err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1306			      chip->port + FM801_OPL3_BANK1,
1307			      OPL3_HW_OPL3_FM801, 1, &opl3);
1308	if (err < 0)
1309		return err;
1310	err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
1311	if (err < 0)
1312		return err;
1313
1314      __fm801_tuner_only:
1315	err = snd_card_register(card);
1316	if (err < 0)
1317		return err;
1318	pci_set_drvdata(pci, card);
1319	dev++;
1320	return 0;
1321}
1322
1323static int snd_card_fm801_probe(struct pci_dev *pci,
1324				const struct pci_device_id *pci_id)
1325{
1326	return snd_card_free_on_error(&pci->dev, __snd_card_fm801_probe(pci, pci_id));
1327}
1328
1329static const unsigned char saved_regs[] = {
1330	FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1331	FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1332	FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1333	FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1334};
1335
1336static int snd_fm801_suspend(struct device *dev)
1337{
1338	struct snd_card *card = dev_get_drvdata(dev);
1339	struct fm801 *chip = card->private_data;
1340	int i;
1341
1342	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1343
1344	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1345		chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1346
1347	if (chip->tea575x_tuner & TUNER_ONLY) {
1348		/* FIXME: tea575x suspend */
1349	} else {
1350		snd_ac97_suspend(chip->ac97);
1351		snd_ac97_suspend(chip->ac97_sec);
1352	}
1353
1354	return 0;
1355}
1356
1357static int snd_fm801_resume(struct device *dev)
1358{
1359	struct snd_card *card = dev_get_drvdata(dev);
1360	struct fm801 *chip = card->private_data;
1361	int i;
1362
1363	if (chip->tea575x_tuner & TUNER_ONLY) {
1364		snd_fm801_chip_init(chip);
1365	} else {
1366		reset_codec(chip);
1367		snd_fm801_chip_multichannel_init(chip);
1368		snd_fm801_chip_init(chip);
1369		snd_ac97_resume(chip->ac97);
1370		snd_ac97_resume(chip->ac97_sec);
1371	}
1372
1373	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1374		fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1375
1376#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1377	if (!(chip->tea575x_tuner & TUNER_DISABLED))
1378		snd_tea575x_set_freq(&chip->tea);
1379#endif
1380
1381	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1382	return 0;
1383}
1384
1385static DEFINE_SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1386
1387static struct pci_driver fm801_driver = {
1388	.name = KBUILD_MODNAME,
1389	.id_table = snd_fm801_ids,
1390	.probe = snd_card_fm801_probe,
1391	.driver = {
1392		.pm = &snd_fm801_pm,
1393	},
1394};
1395
1396module_pci_driver(fm801_driver);
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