xref: /linux/sound/pci/fm801.c (revision dde5199c988b16426cf9a4e0df4b7ae06790471e)
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 
26 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
27 MODULE_DESCRIPTION("ForteMedia FM801");
28 MODULE_LICENSE("GPL");
29 MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
30 		"{Genius,SoundMaker Live 5.1}}");
31 
32 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
33 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
34 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
35 /*
36  *  Enable TEA575x tuner
37  *    1 = MediaForte 256-PCS
38  *    2 = MediaForte 256-PCP
39  *    3 = MediaForte 64-PCR
40  *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
41  *  High 16-bits are video (radio) device number + 1
42  */
43 static int tea575x_tuner[SNDRV_CARDS];
44 static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
45 
46 module_param_array(index, int, NULL, 0444);
47 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
48 module_param_array(id, charp, NULL, 0444);
49 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
50 module_param_array(enable, bool, NULL, 0444);
51 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
52 module_param_array(tea575x_tuner, int, NULL, 0444);
53 MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only).");
54 module_param_array(radio_nr, int, NULL, 0444);
55 MODULE_PARM_DESC(radio_nr, "Radio device numbers");
56 
57 
58 #define TUNER_DISABLED		(1<<3)
59 #define TUNER_ONLY		(1<<4)
60 #define TUNER_TYPE_MASK		(~TUNER_ONLY & 0xFFFF)
61 
62 /*
63  *  Direct registers
64  */
65 
66 #define fm801_writew(chip,reg,value)	outw((value), chip->port + FM801_##reg)
67 #define fm801_readw(chip,reg)		inw(chip->port + FM801_##reg)
68 
69 #define fm801_writel(chip,reg,value)	outl((value), chip->port + FM801_##reg)
70 
71 #define FM801_PCM_VOL		0x00	/* PCM Output Volume */
72 #define FM801_FM_VOL		0x02	/* FM Output Volume */
73 #define FM801_I2S_VOL		0x04	/* I2S Volume */
74 #define FM801_REC_SRC		0x06	/* Record Source */
75 #define FM801_PLY_CTRL		0x08	/* Playback Control */
76 #define FM801_PLY_COUNT		0x0a	/* Playback Count */
77 #define FM801_PLY_BUF1		0x0c	/* Playback Bufer I */
78 #define FM801_PLY_BUF2		0x10	/* Playback Buffer II */
79 #define FM801_CAP_CTRL		0x14	/* Capture Control */
80 #define FM801_CAP_COUNT		0x16	/* Capture Count */
81 #define FM801_CAP_BUF1		0x18	/* Capture Buffer I */
82 #define FM801_CAP_BUF2		0x1c	/* Capture Buffer II */
83 #define FM801_CODEC_CTRL	0x22	/* Codec Control */
84 #define FM801_I2S_MODE		0x24	/* I2S Mode Control */
85 #define FM801_VOLUME		0x26	/* Volume Up/Down/Mute Status */
86 #define FM801_I2C_CTRL		0x29	/* I2C Control */
87 #define FM801_AC97_CMD		0x2a	/* AC'97 Command */
88 #define FM801_AC97_DATA		0x2c	/* AC'97 Data */
89 #define FM801_MPU401_DATA	0x30	/* MPU401 Data */
90 #define FM801_MPU401_CMD	0x31	/* MPU401 Command */
91 #define FM801_GPIO_CTRL		0x52	/* General Purpose I/O Control */
92 #define FM801_GEN_CTRL		0x54	/* General Control */
93 #define FM801_IRQ_MASK		0x56	/* Interrupt Mask */
94 #define FM801_IRQ_STATUS	0x5a	/* Interrupt Status */
95 #define FM801_OPL3_BANK0	0x68	/* OPL3 Status Read / Bank 0 Write */
96 #define FM801_OPL3_DATA0	0x69	/* OPL3 Data 0 Write */
97 #define FM801_OPL3_BANK1	0x6a	/* OPL3 Bank 1 Write */
98 #define FM801_OPL3_DATA1	0x6b	/* OPL3 Bank 1 Write */
99 #define FM801_POWERDOWN		0x70	/* Blocks Power Down Control */
100 
101 /* codec access */
102 #define FM801_AC97_READ		(1<<7)	/* read=1, write=0 */
103 #define FM801_AC97_VALID	(1<<8)	/* port valid=1 */
104 #define FM801_AC97_BUSY		(1<<9)	/* busy=1 */
105 #define FM801_AC97_ADDR_SHIFT	10	/* codec id (2bit) */
106 
107 /* playback and record control register bits */
108 #define FM801_BUF1_LAST		(1<<1)
109 #define FM801_BUF2_LAST		(1<<2)
110 #define FM801_START		(1<<5)
111 #define FM801_PAUSE		(1<<6)
112 #define FM801_IMMED_STOP	(1<<7)
113 #define FM801_RATE_SHIFT	8
114 #define FM801_RATE_MASK		(15 << FM801_RATE_SHIFT)
115 #define FM801_CHANNELS_4	(1<<12)	/* playback only */
116 #define FM801_CHANNELS_6	(2<<12)	/* playback only */
117 #define FM801_CHANNELS_6MS	(3<<12)	/* playback only */
118 #define FM801_CHANNELS_MASK	(3<<12)
119 #define FM801_16BIT		(1<<14)
120 #define FM801_STEREO		(1<<15)
121 
122 /* IRQ status bits */
123 #define FM801_IRQ_PLAYBACK	(1<<8)
124 #define FM801_IRQ_CAPTURE	(1<<9)
125 #define FM801_IRQ_VOLUME	(1<<14)
126 #define FM801_IRQ_MPU		(1<<15)
127 
128 /* GPIO control register */
129 #define FM801_GPIO_GP0		(1<<0)	/* read/write */
130 #define FM801_GPIO_GP1		(1<<1)
131 #define FM801_GPIO_GP2		(1<<2)
132 #define FM801_GPIO_GP3		(1<<3)
133 #define FM801_GPIO_GP(x)	(1<<(0+(x)))
134 #define FM801_GPIO_GD0		(1<<8)	/* directions: 1 = input, 0 = output*/
135 #define FM801_GPIO_GD1		(1<<9)
136 #define FM801_GPIO_GD2		(1<<10)
137 #define FM801_GPIO_GD3		(1<<11)
138 #define FM801_GPIO_GD(x)	(1<<(8+(x)))
139 #define FM801_GPIO_GS0		(1<<12)	/* function select: */
140 #define FM801_GPIO_GS1		(1<<13)	/*    1 = GPIO */
141 #define FM801_GPIO_GS2		(1<<14)	/*    0 = other (S/PDIF, VOL) */
142 #define FM801_GPIO_GS3		(1<<15)
143 #define FM801_GPIO_GS(x)	(1<<(12+(x)))
144 
145 /**
146  * struct fm801 - describes FM801 chip
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  */
155 struct fm801 {
156 	struct device *dev;
157 	int irq;
158 
159 	unsigned long port;
160 	unsigned int multichannel: 1,
161 		     secondary: 1;
162 	unsigned char secondary_addr;
163 	unsigned int tea575x_tuner;
164 
165 	unsigned short ply_ctrl;
166 	unsigned short cap_ctrl;
167 
168 	unsigned long ply_buffer;
169 	unsigned int ply_buf;
170 	unsigned int ply_count;
171 	unsigned int ply_size;
172 	unsigned int ply_pos;
173 
174 	unsigned long cap_buffer;
175 	unsigned int cap_buf;
176 	unsigned int cap_count;
177 	unsigned int cap_size;
178 	unsigned int cap_pos;
179 
180 	struct snd_ac97_bus *ac97_bus;
181 	struct snd_ac97 *ac97;
182 	struct snd_ac97 *ac97_sec;
183 
184 	struct snd_card *card;
185 	struct snd_pcm *pcm;
186 	struct snd_rawmidi *rmidi;
187 	struct snd_pcm_substream *playback_substream;
188 	struct snd_pcm_substream *capture_substream;
189 	unsigned int p_dma_size;
190 	unsigned int c_dma_size;
191 
192 	spinlock_t reg_lock;
193 	struct snd_info_entry *proc_entry;
194 
195 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
196 	struct v4l2_device v4l2_dev;
197 	struct snd_tea575x tea;
198 #endif
199 
200 #ifdef CONFIG_PM_SLEEP
201 	u16 saved_regs[0x20];
202 #endif
203 };
204 
205 /*
206  * IO accessors
207  */
208 
209 static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
210 {
211 	outw(value, chip->port + offset);
212 }
213 
214 static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
215 {
216 	return inw(chip->port + offset);
217 }
218 
219 static const struct pci_device_id snd_fm801_ids[] = {
220 	{ 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
221 	{ 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
222 	{ 0, }
223 };
224 
225 MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
226 
227 /*
228  *  common I/O routines
229  */
230 
231 static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
232 {
233 	unsigned int idx;
234 
235 	for (idx = 0; idx < iterations; idx++) {
236 		if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
237 			return true;
238 		udelay(10);
239 	}
240 	return false;
241 }
242 
243 static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
244 {
245 	unsigned int idx;
246 
247 	for (idx = 0; idx < iterations; idx++) {
248 		if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
249 			return true;
250 		udelay(10);
251 	}
252 	return false;
253 }
254 
255 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
256 				 unsigned short mask, unsigned short value)
257 {
258 	int change;
259 	unsigned long flags;
260 	unsigned short old, new;
261 
262 	spin_lock_irqsave(&chip->reg_lock, flags);
263 	old = fm801_ioread16(chip, reg);
264 	new = (old & ~mask) | value;
265 	change = old != new;
266 	if (change)
267 		fm801_iowrite16(chip, reg, new);
268 	spin_unlock_irqrestore(&chip->reg_lock, flags);
269 	return change;
270 }
271 
272 static void snd_fm801_codec_write(struct snd_ac97 *ac97,
273 				  unsigned short reg,
274 				  unsigned short val)
275 {
276 	struct fm801 *chip = ac97->private_data;
277 
278 	/*
279 	 *  Wait until the codec interface is not ready..
280 	 */
281 	if (!fm801_ac97_is_ready(chip, 100)) {
282 		dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
283 		return;
284 	}
285 
286 	/* write data and address */
287 	fm801_writew(chip, AC97_DATA, val);
288 	fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
289 	/*
290 	 *  Wait until the write command is not completed..
291 	 */
292 	if (!fm801_ac97_is_ready(chip, 1000))
293 		dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
294 		ac97->num);
295 }
296 
297 static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
298 {
299 	struct fm801 *chip = ac97->private_data;
300 
301 	/*
302 	 *  Wait until the codec interface is not ready..
303 	 */
304 	if (!fm801_ac97_is_ready(chip, 100)) {
305 		dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
306 		return 0;
307 	}
308 
309 	/* read command */
310 	fm801_writew(chip, AC97_CMD,
311 		     reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
312 	if (!fm801_ac97_is_ready(chip, 100)) {
313 		dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
314 			ac97->num);
315 		return 0;
316 	}
317 
318 	if (!fm801_ac97_is_valid(chip, 1000)) {
319 		dev_err(chip->card->dev,
320 			"AC'97 interface #%d is not valid (2)\n", ac97->num);
321 		return 0;
322 	}
323 
324 	return fm801_readw(chip, AC97_DATA);
325 }
326 
327 static const unsigned int rates[] = {
328   5500,  8000,  9600, 11025,
329   16000, 19200, 22050, 32000,
330   38400, 44100, 48000
331 };
332 
333 static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
334 	.count = ARRAY_SIZE(rates),
335 	.list = rates,
336 	.mask = 0,
337 };
338 
339 static const unsigned int channels[] = {
340   2, 4, 6
341 };
342 
343 static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
344 	.count = ARRAY_SIZE(channels),
345 	.list = channels,
346 	.mask = 0,
347 };
348 
349 /*
350  *  Sample rate routines
351  */
352 
353 static unsigned short snd_fm801_rate_bits(unsigned int rate)
354 {
355 	unsigned int idx;
356 
357 	for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
358 		if (rates[idx] == rate)
359 			return idx;
360 	snd_BUG();
361 	return ARRAY_SIZE(rates) - 1;
362 }
363 
364 /*
365  *  PCM part
366  */
367 
368 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
369 				      int cmd)
370 {
371 	struct fm801 *chip = snd_pcm_substream_chip(substream);
372 
373 	spin_lock(&chip->reg_lock);
374 	switch (cmd) {
375 	case SNDRV_PCM_TRIGGER_START:
376 		chip->ply_ctrl &= ~(FM801_BUF1_LAST |
377 				     FM801_BUF2_LAST |
378 				     FM801_PAUSE);
379 		chip->ply_ctrl |= FM801_START |
380 				   FM801_IMMED_STOP;
381 		break;
382 	case SNDRV_PCM_TRIGGER_STOP:
383 		chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
384 		break;
385 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
386 	case SNDRV_PCM_TRIGGER_SUSPEND:
387 		chip->ply_ctrl |= FM801_PAUSE;
388 		break;
389 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
390 	case SNDRV_PCM_TRIGGER_RESUME:
391 		chip->ply_ctrl &= ~FM801_PAUSE;
392 		break;
393 	default:
394 		spin_unlock(&chip->reg_lock);
395 		snd_BUG();
396 		return -EINVAL;
397 	}
398 	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
399 	spin_unlock(&chip->reg_lock);
400 	return 0;
401 }
402 
403 static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
404 				     int cmd)
405 {
406 	struct fm801 *chip = snd_pcm_substream_chip(substream);
407 
408 	spin_lock(&chip->reg_lock);
409 	switch (cmd) {
410 	case SNDRV_PCM_TRIGGER_START:
411 		chip->cap_ctrl &= ~(FM801_BUF1_LAST |
412 				     FM801_BUF2_LAST |
413 				     FM801_PAUSE);
414 		chip->cap_ctrl |= FM801_START |
415 				   FM801_IMMED_STOP;
416 		break;
417 	case SNDRV_PCM_TRIGGER_STOP:
418 		chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
419 		break;
420 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
421 	case SNDRV_PCM_TRIGGER_SUSPEND:
422 		chip->cap_ctrl |= FM801_PAUSE;
423 		break;
424 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
425 	case SNDRV_PCM_TRIGGER_RESUME:
426 		chip->cap_ctrl &= ~FM801_PAUSE;
427 		break;
428 	default:
429 		spin_unlock(&chip->reg_lock);
430 		snd_BUG();
431 		return -EINVAL;
432 	}
433 	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
434 	spin_unlock(&chip->reg_lock);
435 	return 0;
436 }
437 
438 static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
439 {
440 	struct fm801 *chip = snd_pcm_substream_chip(substream);
441 	struct snd_pcm_runtime *runtime = substream->runtime;
442 
443 	chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
444 	chip->ply_count = snd_pcm_lib_period_bytes(substream);
445 	spin_lock_irq(&chip->reg_lock);
446 	chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
447 			     FM801_STEREO | FM801_RATE_MASK |
448 			     FM801_CHANNELS_MASK);
449 	if (snd_pcm_format_width(runtime->format) == 16)
450 		chip->ply_ctrl |= FM801_16BIT;
451 	if (runtime->channels > 1) {
452 		chip->ply_ctrl |= FM801_STEREO;
453 		if (runtime->channels == 4)
454 			chip->ply_ctrl |= FM801_CHANNELS_4;
455 		else if (runtime->channels == 6)
456 			chip->ply_ctrl |= FM801_CHANNELS_6;
457 	}
458 	chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
459 	chip->ply_buf = 0;
460 	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
461 	fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
462 	chip->ply_buffer = runtime->dma_addr;
463 	chip->ply_pos = 0;
464 	fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
465 	fm801_writel(chip, PLY_BUF2,
466 		     chip->ply_buffer + (chip->ply_count % chip->ply_size));
467 	spin_unlock_irq(&chip->reg_lock);
468 	return 0;
469 }
470 
471 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
472 {
473 	struct fm801 *chip = snd_pcm_substream_chip(substream);
474 	struct snd_pcm_runtime *runtime = substream->runtime;
475 
476 	chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
477 	chip->cap_count = snd_pcm_lib_period_bytes(substream);
478 	spin_lock_irq(&chip->reg_lock);
479 	chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
480 			     FM801_STEREO | FM801_RATE_MASK);
481 	if (snd_pcm_format_width(runtime->format) == 16)
482 		chip->cap_ctrl |= FM801_16BIT;
483 	if (runtime->channels > 1)
484 		chip->cap_ctrl |= FM801_STEREO;
485 	chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
486 	chip->cap_buf = 0;
487 	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
488 	fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
489 	chip->cap_buffer = runtime->dma_addr;
490 	chip->cap_pos = 0;
491 	fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
492 	fm801_writel(chip, CAP_BUF2,
493 		     chip->cap_buffer + (chip->cap_count % chip->cap_size));
494 	spin_unlock_irq(&chip->reg_lock);
495 	return 0;
496 }
497 
498 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
499 {
500 	struct fm801 *chip = snd_pcm_substream_chip(substream);
501 	size_t ptr;
502 
503 	if (!(chip->ply_ctrl & FM801_START))
504 		return 0;
505 	spin_lock(&chip->reg_lock);
506 	ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
507 	if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
508 		ptr += chip->ply_count;
509 		ptr %= chip->ply_size;
510 	}
511 	spin_unlock(&chip->reg_lock);
512 	return bytes_to_frames(substream->runtime, ptr);
513 }
514 
515 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
516 {
517 	struct fm801 *chip = snd_pcm_substream_chip(substream);
518 	size_t ptr;
519 
520 	if (!(chip->cap_ctrl & FM801_START))
521 		return 0;
522 	spin_lock(&chip->reg_lock);
523 	ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
524 	if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
525 		ptr += chip->cap_count;
526 		ptr %= chip->cap_size;
527 	}
528 	spin_unlock(&chip->reg_lock);
529 	return bytes_to_frames(substream->runtime, ptr);
530 }
531 
532 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
533 {
534 	struct fm801 *chip = dev_id;
535 	unsigned short status;
536 	unsigned int tmp;
537 
538 	status = fm801_readw(chip, IRQ_STATUS);
539 	status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
540 	if (! status)
541 		return IRQ_NONE;
542 	/* ack first */
543 	fm801_writew(chip, IRQ_STATUS, status);
544 	if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
545 		spin_lock(&chip->reg_lock);
546 		chip->ply_buf++;
547 		chip->ply_pos += chip->ply_count;
548 		chip->ply_pos %= chip->ply_size;
549 		tmp = chip->ply_pos + chip->ply_count;
550 		tmp %= chip->ply_size;
551 		if (chip->ply_buf & 1)
552 			fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
553 		else
554 			fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
555 		spin_unlock(&chip->reg_lock);
556 		snd_pcm_period_elapsed(chip->playback_substream);
557 	}
558 	if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
559 		spin_lock(&chip->reg_lock);
560 		chip->cap_buf++;
561 		chip->cap_pos += chip->cap_count;
562 		chip->cap_pos %= chip->cap_size;
563 		tmp = chip->cap_pos + chip->cap_count;
564 		tmp %= chip->cap_size;
565 		if (chip->cap_buf & 1)
566 			fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
567 		else
568 			fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
569 		spin_unlock(&chip->reg_lock);
570 		snd_pcm_period_elapsed(chip->capture_substream);
571 	}
572 	if (chip->rmidi && (status & FM801_IRQ_MPU))
573 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
574 	if (status & FM801_IRQ_VOLUME) {
575 		/* TODO */
576 	}
577 
578 	return IRQ_HANDLED;
579 }
580 
581 static const struct snd_pcm_hardware snd_fm801_playback =
582 {
583 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
584 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
585 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
586 				 SNDRV_PCM_INFO_MMAP_VALID),
587 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
588 	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
589 	.rate_min =		5500,
590 	.rate_max =		48000,
591 	.channels_min =		1,
592 	.channels_max =		2,
593 	.buffer_bytes_max =	(128*1024),
594 	.period_bytes_min =	64,
595 	.period_bytes_max =	(128*1024),
596 	.periods_min =		1,
597 	.periods_max =		1024,
598 	.fifo_size =		0,
599 };
600 
601 static const struct snd_pcm_hardware snd_fm801_capture =
602 {
603 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
604 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
605 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
606 				 SNDRV_PCM_INFO_MMAP_VALID),
607 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
608 	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
609 	.rate_min =		5500,
610 	.rate_max =		48000,
611 	.channels_min =		1,
612 	.channels_max =		2,
613 	.buffer_bytes_max =	(128*1024),
614 	.period_bytes_min =	64,
615 	.period_bytes_max =	(128*1024),
616 	.periods_min =		1,
617 	.periods_max =		1024,
618 	.fifo_size =		0,
619 };
620 
621 static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
622 {
623 	struct fm801 *chip = snd_pcm_substream_chip(substream);
624 	struct snd_pcm_runtime *runtime = substream->runtime;
625 	int err;
626 
627 	chip->playback_substream = substream;
628 	runtime->hw = snd_fm801_playback;
629 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
630 				   &hw_constraints_rates);
631 	if (chip->multichannel) {
632 		runtime->hw.channels_max = 6;
633 		snd_pcm_hw_constraint_list(runtime, 0,
634 					   SNDRV_PCM_HW_PARAM_CHANNELS,
635 					   &hw_constraints_channels);
636 	}
637 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
638 		return err;
639 	return 0;
640 }
641 
642 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
643 {
644 	struct fm801 *chip = snd_pcm_substream_chip(substream);
645 	struct snd_pcm_runtime *runtime = substream->runtime;
646 	int err;
647 
648 	chip->capture_substream = substream;
649 	runtime->hw = snd_fm801_capture;
650 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
651 				   &hw_constraints_rates);
652 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
653 		return err;
654 	return 0;
655 }
656 
657 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
658 {
659 	struct fm801 *chip = snd_pcm_substream_chip(substream);
660 
661 	chip->playback_substream = NULL;
662 	return 0;
663 }
664 
665 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
666 {
667 	struct fm801 *chip = snd_pcm_substream_chip(substream);
668 
669 	chip->capture_substream = NULL;
670 	return 0;
671 }
672 
673 static const struct snd_pcm_ops snd_fm801_playback_ops = {
674 	.open =		snd_fm801_playback_open,
675 	.close =	snd_fm801_playback_close,
676 	.prepare =	snd_fm801_playback_prepare,
677 	.trigger =	snd_fm801_playback_trigger,
678 	.pointer =	snd_fm801_playback_pointer,
679 };
680 
681 static const struct snd_pcm_ops snd_fm801_capture_ops = {
682 	.open =		snd_fm801_capture_open,
683 	.close =	snd_fm801_capture_close,
684 	.prepare =	snd_fm801_capture_prepare,
685 	.trigger =	snd_fm801_capture_trigger,
686 	.pointer =	snd_fm801_capture_pointer,
687 };
688 
689 static int snd_fm801_pcm(struct fm801 *chip, int device)
690 {
691 	struct pci_dev *pdev = to_pci_dev(chip->dev);
692 	struct snd_pcm *pcm;
693 	int err;
694 
695 	if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
696 		return err;
697 
698 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
699 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
700 
701 	pcm->private_data = chip;
702 	pcm->info_flags = 0;
703 	strcpy(pcm->name, "FM801");
704 	chip->pcm = pcm;
705 
706 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &pdev->dev,
707 				       chip->multichannel ? 128*1024 : 64*1024, 128*1024);
708 
709 	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
710 				     snd_pcm_alt_chmaps,
711 				     chip->multichannel ? 6 : 2, 0,
712 				     NULL);
713 }
714 
715 /*
716  *  TEA5757 radio
717  */
718 
719 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
720 
721 /* GPIO to TEA575x maps */
722 struct snd_fm801_tea575x_gpio {
723 	u8 data, clk, wren, most;
724 	char *name;
725 };
726 
727 static struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
728 	{ .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
729 	{ .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
730 	{ .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
731 };
732 
733 #define get_tea575x_gpio(chip) \
734 	(&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
735 
736 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
737 {
738 	struct fm801 *chip = tea->private_data;
739 	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
740 	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
741 
742 	reg &= ~(FM801_GPIO_GP(gpio.data) |
743 		 FM801_GPIO_GP(gpio.clk) |
744 		 FM801_GPIO_GP(gpio.wren));
745 
746 	reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
747 	reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
748 	/* WRITE_ENABLE is inverted */
749 	reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
750 
751 	fm801_writew(chip, GPIO_CTRL, reg);
752 }
753 
754 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
755 {
756 	struct fm801 *chip = tea->private_data;
757 	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
758 	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
759 	u8 ret;
760 
761 	ret = 0;
762 	if (reg & FM801_GPIO_GP(gpio.data))
763 		ret |= TEA575X_DATA;
764 	if (reg & FM801_GPIO_GP(gpio.most))
765 		ret |= TEA575X_MOST;
766 	return ret;
767 }
768 
769 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
770 {
771 	struct fm801 *chip = tea->private_data;
772 	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
773 	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
774 
775 	/* use GPIO lines and set write enable bit */
776 	reg |= FM801_GPIO_GS(gpio.data) |
777 	       FM801_GPIO_GS(gpio.wren) |
778 	       FM801_GPIO_GS(gpio.clk) |
779 	       FM801_GPIO_GS(gpio.most);
780 	if (output) {
781 		/* all of lines are in the write direction */
782 		/* clear data and clock lines */
783 		reg &= ~(FM801_GPIO_GD(gpio.data) |
784 			 FM801_GPIO_GD(gpio.wren) |
785 			 FM801_GPIO_GD(gpio.clk) |
786 			 FM801_GPIO_GP(gpio.data) |
787 			 FM801_GPIO_GP(gpio.clk) |
788 			 FM801_GPIO_GP(gpio.wren));
789 	} else {
790 		/* use GPIO lines, set data direction to input */
791 		reg |= FM801_GPIO_GD(gpio.data) |
792 		       FM801_GPIO_GD(gpio.most) |
793 		       FM801_GPIO_GP(gpio.data) |
794 		       FM801_GPIO_GP(gpio.most) |
795 		       FM801_GPIO_GP(gpio.wren);
796 		/* all of lines are in the write direction, except data */
797 		/* clear data, write enable and clock lines */
798 		reg &= ~(FM801_GPIO_GD(gpio.wren) |
799 			 FM801_GPIO_GD(gpio.clk) |
800 			 FM801_GPIO_GP(gpio.clk));
801 	}
802 
803 	fm801_writew(chip, GPIO_CTRL, reg);
804 }
805 
806 static const struct snd_tea575x_ops snd_fm801_tea_ops = {
807 	.set_pins = snd_fm801_tea575x_set_pins,
808 	.get_pins = snd_fm801_tea575x_get_pins,
809 	.set_direction = snd_fm801_tea575x_set_direction,
810 };
811 #endif
812 
813 /*
814  *  Mixer routines
815  */
816 
817 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
818 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
819   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
820   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
821 
822 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
823 				 struct snd_ctl_elem_info *uinfo)
824 {
825 	int mask = (kcontrol->private_value >> 16) & 0xff;
826 
827 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
828 	uinfo->count = 1;
829 	uinfo->value.integer.min = 0;
830 	uinfo->value.integer.max = mask;
831 	return 0;
832 }
833 
834 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
835 				struct snd_ctl_elem_value *ucontrol)
836 {
837 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
838 	int reg = kcontrol->private_value & 0xff;
839 	int shift = (kcontrol->private_value >> 8) & 0xff;
840 	int mask = (kcontrol->private_value >> 16) & 0xff;
841 	int invert = (kcontrol->private_value >> 24) & 0xff;
842 	long *value = ucontrol->value.integer.value;
843 
844 	value[0] = (fm801_ioread16(chip, reg) >> shift) & mask;
845 	if (invert)
846 		value[0] = mask - value[0];
847 	return 0;
848 }
849 
850 static int snd_fm801_put_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 	unsigned short val;
859 
860 	val = (ucontrol->value.integer.value[0] & mask);
861 	if (invert)
862 		val = mask - val;
863 	return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
864 }
865 
866 #define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
867 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
868   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
869   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
870 #define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
871 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
872   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
873   .name = xname, .info = snd_fm801_info_double, \
874   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
875   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
876   .tlv = { .p = (xtlv) } }
877 
878 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
879 				 struct snd_ctl_elem_info *uinfo)
880 {
881 	int mask = (kcontrol->private_value >> 16) & 0xff;
882 
883 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
884 	uinfo->count = 2;
885 	uinfo->value.integer.min = 0;
886 	uinfo->value.integer.max = mask;
887 	return 0;
888 }
889 
890 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
891 				struct snd_ctl_elem_value *ucontrol)
892 {
893 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
894         int reg = kcontrol->private_value & 0xff;
895 	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
896 	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
897 	int mask = (kcontrol->private_value >> 16) & 0xff;
898 	int invert = (kcontrol->private_value >> 24) & 0xff;
899 	long *value = ucontrol->value.integer.value;
900 
901 	spin_lock_irq(&chip->reg_lock);
902 	value[0] = (fm801_ioread16(chip, reg) >> shift_left) & mask;
903 	value[1] = (fm801_ioread16(chip, reg) >> shift_right) & mask;
904 	spin_unlock_irq(&chip->reg_lock);
905 	if (invert) {
906 		value[0] = mask - value[0];
907 		value[1] = mask - value[1];
908 	}
909 	return 0;
910 }
911 
912 static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
913 				struct snd_ctl_elem_value *ucontrol)
914 {
915 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
916 	int reg = kcontrol->private_value & 0xff;
917 	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
918 	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
919 	int mask = (kcontrol->private_value >> 16) & 0xff;
920 	int invert = (kcontrol->private_value >> 24) & 0xff;
921 	unsigned short val1, val2;
922 
923 	val1 = ucontrol->value.integer.value[0] & mask;
924 	val2 = ucontrol->value.integer.value[1] & mask;
925 	if (invert) {
926 		val1 = mask - val1;
927 		val2 = mask - val2;
928 	}
929 	return snd_fm801_update_bits(chip, reg,
930 				     (mask << shift_left) | (mask << shift_right),
931 				     (val1 << shift_left ) | (val2 << shift_right));
932 }
933 
934 static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
935 			      struct snd_ctl_elem_info *uinfo)
936 {
937 	static const char * const texts[5] = {
938 		"AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
939 	};
940 
941 	return snd_ctl_enum_info(uinfo, 1, 5, texts);
942 }
943 
944 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
945 			     struct snd_ctl_elem_value *ucontrol)
946 {
947 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
948         unsigned short val;
949 
950 	val = fm801_readw(chip, REC_SRC) & 7;
951 	if (val > 4)
952 		val = 4;
953         ucontrol->value.enumerated.item[0] = val;
954         return 0;
955 }
956 
957 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
958 			     struct snd_ctl_elem_value *ucontrol)
959 {
960 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
961         unsigned short val;
962 
963         if ((val = ucontrol->value.enumerated.item[0]) > 4)
964                 return -EINVAL;
965 	return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
966 }
967 
968 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
969 
970 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
971 
972 static struct snd_kcontrol_new snd_fm801_controls[] = {
973 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
974 		 db_scale_dsp),
975 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
976 FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
977 		 db_scale_dsp),
978 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
979 FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
980 		 db_scale_dsp),
981 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
982 {
983 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
984 	.name = "Digital Capture Source",
985 	.info = snd_fm801_info_mux,
986 	.get = snd_fm801_get_mux,
987 	.put = snd_fm801_put_mux,
988 }
989 };
990 
991 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
992 
993 static struct snd_kcontrol_new snd_fm801_controls_multi[] = {
994 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
995 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
996 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
997 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
998 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
999 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1000 };
1001 
1002 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1003 {
1004 	struct fm801 *chip = bus->private_data;
1005 	chip->ac97_bus = NULL;
1006 }
1007 
1008 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1009 {
1010 	struct fm801 *chip = ac97->private_data;
1011 	if (ac97->num == 0) {
1012 		chip->ac97 = NULL;
1013 	} else {
1014 		chip->ac97_sec = NULL;
1015 	}
1016 }
1017 
1018 static 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 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1029 		return err;
1030 	chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1031 
1032 	memset(&ac97, 0, sizeof(ac97));
1033 	ac97.private_data = chip;
1034 	ac97.private_free = snd_fm801_mixer_free_ac97;
1035 	if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1036 		return err;
1037 	if (chip->secondary) {
1038 		ac97.num = 1;
1039 		ac97.addr = chip->secondary_addr;
1040 		if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1041 			return err;
1042 	}
1043 	for (i = 0; i < FM801_CONTROLS; i++) {
1044 		err = snd_ctl_add(chip->card,
1045 			snd_ctl_new1(&snd_fm801_controls[i], chip));
1046 		if (err < 0)
1047 			return err;
1048 	}
1049 	if (chip->multichannel) {
1050 		for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1051 			err = snd_ctl_add(chip->card,
1052 				snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1053 			if (err < 0)
1054 				return err;
1055 		}
1056 	}
1057 	return 0;
1058 }
1059 
1060 /*
1061  *  initialization routines
1062  */
1063 
1064 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1065 			  unsigned short reg, unsigned long waits)
1066 {
1067 	unsigned long timeout = jiffies + waits;
1068 
1069 	fm801_writew(chip, AC97_CMD,
1070 		     reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1071 	udelay(5);
1072 	do {
1073 		if ((fm801_readw(chip, AC97_CMD) &
1074 		     (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1075 			return 0;
1076 		schedule_timeout_uninterruptible(1);
1077 	} while (time_after(timeout, jiffies));
1078 	return -EIO;
1079 }
1080 
1081 static int reset_codec(struct fm801 *chip)
1082 {
1083 	/* codec cold reset + AC'97 warm reset */
1084 	fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1085 	fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1086 	udelay(100);
1087 	fm801_writew(chip, CODEC_CTRL, 0);
1088 
1089 	return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1090 }
1091 
1092 static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1093 {
1094 	unsigned short cmdw;
1095 
1096 	if (chip->multichannel) {
1097 		if (chip->secondary_addr) {
1098 			wait_for_codec(chip, chip->secondary_addr,
1099 				       AC97_VENDOR_ID1, msecs_to_jiffies(50));
1100 		} else {
1101 			/* my card has the secondary codec */
1102 			/* at address #3, so the loop is inverted */
1103 			int i;
1104 			for (i = 3; i > 0; i--) {
1105 				if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1106 						     msecs_to_jiffies(50))) {
1107 					cmdw = fm801_readw(chip, AC97_DATA);
1108 					if (cmdw != 0xffff && cmdw != 0) {
1109 						chip->secondary = 1;
1110 						chip->secondary_addr = i;
1111 						break;
1112 					}
1113 				}
1114 			}
1115 		}
1116 
1117 		/* the recovery phase, it seems that probing for non-existing codec might */
1118 		/* cause timeout problems */
1119 		wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1120 	}
1121 }
1122 
1123 static void snd_fm801_chip_init(struct fm801 *chip)
1124 {
1125 	unsigned short cmdw;
1126 
1127 	/* init volume */
1128 	fm801_writew(chip, PCM_VOL, 0x0808);
1129 	fm801_writew(chip, FM_VOL, 0x9f1f);
1130 	fm801_writew(chip, I2S_VOL, 0x8808);
1131 
1132 	/* I2S control - I2S mode */
1133 	fm801_writew(chip, I2S_MODE, 0x0003);
1134 
1135 	/* interrupt setup */
1136 	cmdw = fm801_readw(chip, IRQ_MASK);
1137 	if (chip->irq < 0)
1138 		cmdw |= 0x00c3;		/* mask everything, no PCM nor MPU */
1139 	else
1140 		cmdw &= ~0x0083;	/* unmask MPU, PLAYBACK & CAPTURE */
1141 	fm801_writew(chip, IRQ_MASK, cmdw);
1142 
1143 	/* interrupt clear */
1144 	fm801_writew(chip, IRQ_STATUS,
1145 		     FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1146 }
1147 
1148 static int snd_fm801_free(struct fm801 *chip)
1149 {
1150 	unsigned short cmdw;
1151 
1152 	if (chip->irq < 0)
1153 		goto __end_hw;
1154 
1155 	/* interrupt setup - mask everything */
1156 	cmdw = fm801_readw(chip, IRQ_MASK);
1157 	cmdw |= 0x00c3;
1158 	fm801_writew(chip, IRQ_MASK, cmdw);
1159 
1160 	devm_free_irq(chip->dev, chip->irq, chip);
1161 
1162       __end_hw:
1163 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1164 	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1165 		snd_tea575x_exit(&chip->tea);
1166 		v4l2_device_unregister(&chip->v4l2_dev);
1167 	}
1168 #endif
1169 	return 0;
1170 }
1171 
1172 static int snd_fm801_dev_free(struct snd_device *device)
1173 {
1174 	struct fm801 *chip = device->device_data;
1175 	return snd_fm801_free(chip);
1176 }
1177 
1178 static int snd_fm801_create(struct snd_card *card,
1179 			    struct pci_dev *pci,
1180 			    int tea575x_tuner,
1181 			    int radio_nr,
1182 			    struct fm801 **rchip)
1183 {
1184 	struct fm801 *chip;
1185 	int err;
1186 	static const struct snd_device_ops ops = {
1187 		.dev_free =	snd_fm801_dev_free,
1188 	};
1189 
1190 	*rchip = NULL;
1191 	if ((err = pcim_enable_device(pci)) < 0)
1192 		return err;
1193 	chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1194 	if (chip == NULL)
1195 		return -ENOMEM;
1196 	spin_lock_init(&chip->reg_lock);
1197 	chip->card = card;
1198 	chip->dev = &pci->dev;
1199 	chip->irq = -1;
1200 	chip->tea575x_tuner = tea575x_tuner;
1201 	if ((err = pci_request_regions(pci, "FM801")) < 0)
1202 		return err;
1203 	chip->port = pci_resource_start(pci, 0);
1204 
1205 	if (pci->revision >= 0xb1)	/* FM801-AU */
1206 		chip->multichannel = 1;
1207 
1208 	if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1209 		if (reset_codec(chip) < 0) {
1210 			dev_info(chip->card->dev,
1211 				 "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1212 			chip->tea575x_tuner = 3 | TUNER_ONLY;
1213 		} else {
1214 			snd_fm801_chip_multichannel_init(chip);
1215 		}
1216 	}
1217 
1218 	if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1219 		if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1220 				IRQF_SHARED, KBUILD_MODNAME, chip)) {
1221 			dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1222 			snd_fm801_free(chip);
1223 			return -EBUSY;
1224 		}
1225 		chip->irq = pci->irq;
1226 		card->sync_irq = chip->irq;
1227 		pci_set_master(pci);
1228 	}
1229 
1230 	snd_fm801_chip_init(chip);
1231 
1232 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1233 		snd_fm801_free(chip);
1234 		return err;
1235 	}
1236 
1237 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1238 	err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1239 	if (err < 0) {
1240 		snd_fm801_free(chip);
1241 		return err;
1242 	}
1243 	chip->tea.v4l2_dev = &chip->v4l2_dev;
1244 	chip->tea.radio_nr = radio_nr;
1245 	chip->tea.private_data = chip;
1246 	chip->tea.ops = &snd_fm801_tea_ops;
1247 	sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1248 	if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1249 	    (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1250 		if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1251 			dev_err(card->dev, "TEA575x radio not found\n");
1252 			snd_fm801_free(chip);
1253 			return -ENODEV;
1254 		}
1255 	} else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1256 		unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1257 
1258 		/* autodetect tuner connection */
1259 		for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1260 			chip->tea575x_tuner = tea575x_tuner;
1261 			if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1262 				dev_info(card->dev,
1263 					 "detected TEA575x radio type %s\n",
1264 					   get_tea575x_gpio(chip)->name);
1265 				break;
1266 			}
1267 		}
1268 		if (tea575x_tuner == 4) {
1269 			dev_err(card->dev, "TEA575x radio not found\n");
1270 			chip->tea575x_tuner = TUNER_DISABLED;
1271 		}
1272 
1273 		chip->tea575x_tuner |= tuner_only;
1274 	}
1275 	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1276 		strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1277 			sizeof(chip->tea.card));
1278 	}
1279 #endif
1280 
1281 	*rchip = chip;
1282 	return 0;
1283 }
1284 
1285 static int snd_card_fm801_probe(struct pci_dev *pci,
1286 				const struct pci_device_id *pci_id)
1287 {
1288 	static int dev;
1289 	struct snd_card *card;
1290 	struct fm801 *chip;
1291 	struct snd_opl3 *opl3;
1292 	int err;
1293 
1294         if (dev >= SNDRV_CARDS)
1295                 return -ENODEV;
1296 	if (!enable[dev]) {
1297 		dev++;
1298 		return -ENOENT;
1299 	}
1300 
1301 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1302 			   0, &card);
1303 	if (err < 0)
1304 		return err;
1305 	if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip)) < 0) {
1306 		snd_card_free(card);
1307 		return err;
1308 	}
1309 	card->private_data = chip;
1310 
1311 	strcpy(card->driver, "FM801");
1312 	strcpy(card->shortname, "ForteMedia FM801-");
1313 	strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1314 	sprintf(card->longname, "%s at 0x%lx, irq %i",
1315 		card->shortname, chip->port, chip->irq);
1316 
1317 	if (chip->tea575x_tuner & TUNER_ONLY)
1318 		goto __fm801_tuner_only;
1319 
1320 	if ((err = snd_fm801_pcm(chip, 0)) < 0) {
1321 		snd_card_free(card);
1322 		return err;
1323 	}
1324 	if ((err = snd_fm801_mixer(chip)) < 0) {
1325 		snd_card_free(card);
1326 		return err;
1327 	}
1328 	if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1329 				       chip->port + FM801_MPU401_DATA,
1330 				       MPU401_INFO_INTEGRATED |
1331 				       MPU401_INFO_IRQ_HOOK,
1332 				       -1, &chip->rmidi)) < 0) {
1333 		snd_card_free(card);
1334 		return err;
1335 	}
1336 	if ((err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1337 				   chip->port + FM801_OPL3_BANK1,
1338 				   OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1339 		snd_card_free(card);
1340 		return err;
1341 	}
1342 	if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1343 		snd_card_free(card);
1344 		return err;
1345 	}
1346 
1347       __fm801_tuner_only:
1348 	if ((err = snd_card_register(card)) < 0) {
1349 		snd_card_free(card);
1350 		return err;
1351 	}
1352 	pci_set_drvdata(pci, card);
1353 	dev++;
1354 	return 0;
1355 }
1356 
1357 static void snd_card_fm801_remove(struct pci_dev *pci)
1358 {
1359 	snd_card_free(pci_get_drvdata(pci));
1360 }
1361 
1362 #ifdef CONFIG_PM_SLEEP
1363 static unsigned char saved_regs[] = {
1364 	FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1365 	FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1366 	FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1367 	FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1368 };
1369 
1370 static int snd_fm801_suspend(struct device *dev)
1371 {
1372 	struct snd_card *card = dev_get_drvdata(dev);
1373 	struct fm801 *chip = card->private_data;
1374 	int i;
1375 
1376 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1377 
1378 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1379 		chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1380 
1381 	if (chip->tea575x_tuner & TUNER_ONLY) {
1382 		/* FIXME: tea575x suspend */
1383 	} else {
1384 		snd_ac97_suspend(chip->ac97);
1385 		snd_ac97_suspend(chip->ac97_sec);
1386 	}
1387 
1388 	return 0;
1389 }
1390 
1391 static int snd_fm801_resume(struct device *dev)
1392 {
1393 	struct snd_card *card = dev_get_drvdata(dev);
1394 	struct fm801 *chip = card->private_data;
1395 	int i;
1396 
1397 	if (chip->tea575x_tuner & TUNER_ONLY) {
1398 		snd_fm801_chip_init(chip);
1399 	} else {
1400 		reset_codec(chip);
1401 		snd_fm801_chip_multichannel_init(chip);
1402 		snd_fm801_chip_init(chip);
1403 		snd_ac97_resume(chip->ac97);
1404 		snd_ac97_resume(chip->ac97_sec);
1405 	}
1406 
1407 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1408 		fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1409 
1410 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1411 	if (!(chip->tea575x_tuner & TUNER_DISABLED))
1412 		snd_tea575x_set_freq(&chip->tea);
1413 #endif
1414 
1415 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1416 	return 0;
1417 }
1418 
1419 static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1420 #define SND_FM801_PM_OPS	&snd_fm801_pm
1421 #else
1422 #define SND_FM801_PM_OPS	NULL
1423 #endif /* CONFIG_PM_SLEEP */
1424 
1425 static struct pci_driver fm801_driver = {
1426 	.name = KBUILD_MODNAME,
1427 	.id_table = snd_fm801_ids,
1428 	.probe = snd_card_fm801_probe,
1429 	.remove = snd_card_fm801_remove,
1430 	.driver = {
1431 		.pm = SND_FM801_PM_OPS,
1432 	},
1433 };
1434 
1435 module_pci_driver(fm801_driver);
1436