xref: /openbmc/linux/sound/pci/fm801.c (revision 2c684d89)
1 /*
2  *  The driver for the ForteMedia FM801 based soundcards
3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4  *
5  *   This program is free software; you can redistribute it and/or modify
6  *   it under the terms of the GNU General Public License as published by
7  *   the Free Software Foundation; either version 2 of the License, or
8  *   (at your option) any later version.
9  *
10  *   This program is distributed in the hope that it will be useful,
11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  *   GNU General Public License for more details.
14  *
15  */
16 
17 #include <linux/delay.h>
18 #include <linux/init.h>
19 #include <linux/interrupt.h>
20 #include <linux/io.h>
21 #include <linux/pci.h>
22 #include <linux/slab.h>
23 #include <linux/module.h>
24 #include <sound/core.h>
25 #include <sound/pcm.h>
26 #include <sound/tlv.h>
27 #include <sound/ac97_codec.h>
28 #include <sound/mpu401.h>
29 #include <sound/opl3.h>
30 #include <sound/initval.h>
31 
32 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
33 #include <media/tea575x.h>
34 #endif
35 
36 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
37 MODULE_DESCRIPTION("ForteMedia FM801");
38 MODULE_LICENSE("GPL");
39 MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
40 		"{Genius,SoundMaker Live 5.1}}");
41 
42 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
43 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
44 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
45 /*
46  *  Enable TEA575x tuner
47  *    1 = MediaForte 256-PCS
48  *    2 = MediaForte 256-PCP
49  *    3 = MediaForte 64-PCR
50  *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
51  *  High 16-bits are video (radio) device number + 1
52  */
53 static int tea575x_tuner[SNDRV_CARDS];
54 static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
55 
56 module_param_array(index, int, NULL, 0444);
57 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
58 module_param_array(id, charp, NULL, 0444);
59 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
60 module_param_array(enable, bool, NULL, 0444);
61 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
62 module_param_array(tea575x_tuner, int, NULL, 0444);
63 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).");
64 module_param_array(radio_nr, int, NULL, 0444);
65 MODULE_PARM_DESC(radio_nr, "Radio device numbers");
66 
67 
68 #define TUNER_DISABLED		(1<<3)
69 #define TUNER_ONLY		(1<<4)
70 #define TUNER_TYPE_MASK		(~TUNER_ONLY & 0xFFFF)
71 
72 /*
73  *  Direct registers
74  */
75 
76 #define fm801_writew(chip,reg,value)	outw((value), chip->port + FM801_##reg)
77 #define fm801_readw(chip,reg)		inw(chip->port + FM801_##reg)
78 
79 #define fm801_writel(chip,reg,value)	outl((value), chip->port + FM801_##reg)
80 
81 #define FM801_PCM_VOL		0x00	/* PCM Output Volume */
82 #define FM801_FM_VOL		0x02	/* FM Output Volume */
83 #define FM801_I2S_VOL		0x04	/* I2S Volume */
84 #define FM801_REC_SRC		0x06	/* Record Source */
85 #define FM801_PLY_CTRL		0x08	/* Playback Control */
86 #define FM801_PLY_COUNT		0x0a	/* Playback Count */
87 #define FM801_PLY_BUF1		0x0c	/* Playback Bufer I */
88 #define FM801_PLY_BUF2		0x10	/* Playback Buffer II */
89 #define FM801_CAP_CTRL		0x14	/* Capture Control */
90 #define FM801_CAP_COUNT		0x16	/* Capture Count */
91 #define FM801_CAP_BUF1		0x18	/* Capture Buffer I */
92 #define FM801_CAP_BUF2		0x1c	/* Capture Buffer II */
93 #define FM801_CODEC_CTRL	0x22	/* Codec Control */
94 #define FM801_I2S_MODE		0x24	/* I2S Mode Control */
95 #define FM801_VOLUME		0x26	/* Volume Up/Down/Mute Status */
96 #define FM801_I2C_CTRL		0x29	/* I2C Control */
97 #define FM801_AC97_CMD		0x2a	/* AC'97 Command */
98 #define FM801_AC97_DATA		0x2c	/* AC'97 Data */
99 #define FM801_MPU401_DATA	0x30	/* MPU401 Data */
100 #define FM801_MPU401_CMD	0x31	/* MPU401 Command */
101 #define FM801_GPIO_CTRL		0x52	/* General Purpose I/O Control */
102 #define FM801_GEN_CTRL		0x54	/* General Control */
103 #define FM801_IRQ_MASK		0x56	/* Interrupt Mask */
104 #define FM801_IRQ_STATUS	0x5a	/* Interrupt Status */
105 #define FM801_OPL3_BANK0	0x68	/* OPL3 Status Read / Bank 0 Write */
106 #define FM801_OPL3_DATA0	0x69	/* OPL3 Data 0 Write */
107 #define FM801_OPL3_BANK1	0x6a	/* OPL3 Bank 1 Write */
108 #define FM801_OPL3_DATA1	0x6b	/* OPL3 Bank 1 Write */
109 #define FM801_POWERDOWN		0x70	/* Blocks Power Down Control */
110 
111 /* codec access */
112 #define FM801_AC97_READ		(1<<7)	/* read=1, write=0 */
113 #define FM801_AC97_VALID	(1<<8)	/* port valid=1 */
114 #define FM801_AC97_BUSY		(1<<9)	/* busy=1 */
115 #define FM801_AC97_ADDR_SHIFT	10	/* codec id (2bit) */
116 
117 /* playback and record control register bits */
118 #define FM801_BUF1_LAST		(1<<1)
119 #define FM801_BUF2_LAST		(1<<2)
120 #define FM801_START		(1<<5)
121 #define FM801_PAUSE		(1<<6)
122 #define FM801_IMMED_STOP	(1<<7)
123 #define FM801_RATE_SHIFT	8
124 #define FM801_RATE_MASK		(15 << FM801_RATE_SHIFT)
125 #define FM801_CHANNELS_4	(1<<12)	/* playback only */
126 #define FM801_CHANNELS_6	(2<<12)	/* playback only */
127 #define FM801_CHANNELS_6MS	(3<<12)	/* playback only */
128 #define FM801_CHANNELS_MASK	(3<<12)
129 #define FM801_16BIT		(1<<14)
130 #define FM801_STEREO		(1<<15)
131 
132 /* IRQ status bits */
133 #define FM801_IRQ_PLAYBACK	(1<<8)
134 #define FM801_IRQ_CAPTURE	(1<<9)
135 #define FM801_IRQ_VOLUME	(1<<14)
136 #define FM801_IRQ_MPU		(1<<15)
137 
138 /* GPIO control register */
139 #define FM801_GPIO_GP0		(1<<0)	/* read/write */
140 #define FM801_GPIO_GP1		(1<<1)
141 #define FM801_GPIO_GP2		(1<<2)
142 #define FM801_GPIO_GP3		(1<<3)
143 #define FM801_GPIO_GP(x)	(1<<(0+(x)))
144 #define FM801_GPIO_GD0		(1<<8)	/* directions: 1 = input, 0 = output*/
145 #define FM801_GPIO_GD1		(1<<9)
146 #define FM801_GPIO_GD2		(1<<10)
147 #define FM801_GPIO_GD3		(1<<11)
148 #define FM801_GPIO_GD(x)	(1<<(8+(x)))
149 #define FM801_GPIO_GS0		(1<<12)	/* function select: */
150 #define FM801_GPIO_GS1		(1<<13)	/*    1 = GPIO */
151 #define FM801_GPIO_GS2		(1<<14)	/*    0 = other (S/PDIF, VOL) */
152 #define FM801_GPIO_GS3		(1<<15)
153 #define FM801_GPIO_GS(x)	(1<<(12+(x)))
154 
155 /**
156  * struct fm801 - describes FM801 chip
157  * @port:		I/O port number
158  * @multichannel:	multichannel support
159  * @secondary:		secondary codec
160  * @secondary_addr:	address of the secondary codec
161  * @tea575x_tuner:	tuner access method & flags
162  * @ply_ctrl:		playback control
163  * @cap_ctrl:		capture control
164  */
165 struct fm801 {
166 	int irq;
167 
168 	unsigned long port;
169 	unsigned int multichannel: 1,
170 		     secondary: 1;
171 	unsigned char secondary_addr;
172 	unsigned int tea575x_tuner;
173 
174 	unsigned short ply_ctrl;
175 	unsigned short cap_ctrl;
176 
177 	unsigned long ply_buffer;
178 	unsigned int ply_buf;
179 	unsigned int ply_count;
180 	unsigned int ply_size;
181 	unsigned int ply_pos;
182 
183 	unsigned long cap_buffer;
184 	unsigned int cap_buf;
185 	unsigned int cap_count;
186 	unsigned int cap_size;
187 	unsigned int cap_pos;
188 
189 	struct snd_ac97_bus *ac97_bus;
190 	struct snd_ac97 *ac97;
191 	struct snd_ac97 *ac97_sec;
192 
193 	struct pci_dev *pci;
194 	struct snd_card *card;
195 	struct snd_pcm *pcm;
196 	struct snd_rawmidi *rmidi;
197 	struct snd_pcm_substream *playback_substream;
198 	struct snd_pcm_substream *capture_substream;
199 	unsigned int p_dma_size;
200 	unsigned int c_dma_size;
201 
202 	spinlock_t reg_lock;
203 	struct snd_info_entry *proc_entry;
204 
205 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
206 	struct v4l2_device v4l2_dev;
207 	struct snd_tea575x tea;
208 #endif
209 
210 #ifdef CONFIG_PM_SLEEP
211 	u16 saved_regs[0x20];
212 #endif
213 };
214 
215 static const struct pci_device_id snd_fm801_ids[] = {
216 	{ 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
217 	{ 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
218 	{ 0, }
219 };
220 
221 MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
222 
223 /*
224  *  common I/O routines
225  */
226 
227 static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
228 {
229 	unsigned int idx;
230 
231 	for (idx = 0; idx < iterations; idx++) {
232 		if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
233 			return true;
234 		udelay(10);
235 	}
236 	return false;
237 }
238 
239 static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
240 {
241 	unsigned int idx;
242 
243 	for (idx = 0; idx < iterations; idx++) {
244 		if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
245 			return true;
246 		udelay(10);
247 	}
248 	return false;
249 }
250 
251 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
252 				 unsigned short mask, unsigned short value)
253 {
254 	int change;
255 	unsigned long flags;
256 	unsigned short old, new;
257 
258 	spin_lock_irqsave(&chip->reg_lock, flags);
259 	old = inw(chip->port + reg);
260 	new = (old & ~mask) | value;
261 	change = old != new;
262 	if (change)
263 		outw(new, chip->port + reg);
264 	spin_unlock_irqrestore(&chip->reg_lock, flags);
265 	return change;
266 }
267 
268 static void snd_fm801_codec_write(struct snd_ac97 *ac97,
269 				  unsigned short reg,
270 				  unsigned short val)
271 {
272 	struct fm801 *chip = ac97->private_data;
273 
274 	/*
275 	 *  Wait until the codec interface is not ready..
276 	 */
277 	if (!fm801_ac97_is_ready(chip, 100)) {
278 		dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
279 		return;
280 	}
281 
282 	/* write data and address */
283 	fm801_writew(chip, AC97_DATA, val);
284 	fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
285 	/*
286 	 *  Wait until the write command is not completed..
287 	 */
288 	if (!fm801_ac97_is_ready(chip, 1000))
289 		dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
290 		ac97->num);
291 }
292 
293 static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
294 {
295 	struct fm801 *chip = ac97->private_data;
296 
297 	/*
298 	 *  Wait until the codec interface is not ready..
299 	 */
300 	if (!fm801_ac97_is_ready(chip, 100)) {
301 		dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
302 		return 0;
303 	}
304 
305 	/* read command */
306 	fm801_writew(chip, AC97_CMD,
307 		     reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
308 	if (!fm801_ac97_is_ready(chip, 100)) {
309 		dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
310 			ac97->num);
311 		return 0;
312 	}
313 
314 	if (!fm801_ac97_is_valid(chip, 1000)) {
315 		dev_err(chip->card->dev,
316 			"AC'97 interface #%d is not valid (2)\n", ac97->num);
317 		return 0;
318 	}
319 
320 	return fm801_readw(chip, AC97_DATA);
321 }
322 
323 static unsigned int rates[] = {
324   5500,  8000,  9600, 11025,
325   16000, 19200, 22050, 32000,
326   38400, 44100, 48000
327 };
328 
329 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
330 	.count = ARRAY_SIZE(rates),
331 	.list = rates,
332 	.mask = 0,
333 };
334 
335 static unsigned int channels[] = {
336   2, 4, 6
337 };
338 
339 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
340 	.count = ARRAY_SIZE(channels),
341 	.list = channels,
342 	.mask = 0,
343 };
344 
345 /*
346  *  Sample rate routines
347  */
348 
349 static unsigned short snd_fm801_rate_bits(unsigned int rate)
350 {
351 	unsigned int idx;
352 
353 	for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
354 		if (rates[idx] == rate)
355 			return idx;
356 	snd_BUG();
357 	return ARRAY_SIZE(rates) - 1;
358 }
359 
360 /*
361  *  PCM part
362  */
363 
364 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
365 				      int cmd)
366 {
367 	struct fm801 *chip = snd_pcm_substream_chip(substream);
368 
369 	spin_lock(&chip->reg_lock);
370 	switch (cmd) {
371 	case SNDRV_PCM_TRIGGER_START:
372 		chip->ply_ctrl &= ~(FM801_BUF1_LAST |
373 				     FM801_BUF2_LAST |
374 				     FM801_PAUSE);
375 		chip->ply_ctrl |= FM801_START |
376 				   FM801_IMMED_STOP;
377 		break;
378 	case SNDRV_PCM_TRIGGER_STOP:
379 		chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
380 		break;
381 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
382 	case SNDRV_PCM_TRIGGER_SUSPEND:
383 		chip->ply_ctrl |= FM801_PAUSE;
384 		break;
385 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
386 	case SNDRV_PCM_TRIGGER_RESUME:
387 		chip->ply_ctrl &= ~FM801_PAUSE;
388 		break;
389 	default:
390 		spin_unlock(&chip->reg_lock);
391 		snd_BUG();
392 		return -EINVAL;
393 	}
394 	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
395 	spin_unlock(&chip->reg_lock);
396 	return 0;
397 }
398 
399 static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
400 				     int cmd)
401 {
402 	struct fm801 *chip = snd_pcm_substream_chip(substream);
403 
404 	spin_lock(&chip->reg_lock);
405 	switch (cmd) {
406 	case SNDRV_PCM_TRIGGER_START:
407 		chip->cap_ctrl &= ~(FM801_BUF1_LAST |
408 				     FM801_BUF2_LAST |
409 				     FM801_PAUSE);
410 		chip->cap_ctrl |= FM801_START |
411 				   FM801_IMMED_STOP;
412 		break;
413 	case SNDRV_PCM_TRIGGER_STOP:
414 		chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
415 		break;
416 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
417 	case SNDRV_PCM_TRIGGER_SUSPEND:
418 		chip->cap_ctrl |= FM801_PAUSE;
419 		break;
420 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
421 	case SNDRV_PCM_TRIGGER_RESUME:
422 		chip->cap_ctrl &= ~FM801_PAUSE;
423 		break;
424 	default:
425 		spin_unlock(&chip->reg_lock);
426 		snd_BUG();
427 		return -EINVAL;
428 	}
429 	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
430 	spin_unlock(&chip->reg_lock);
431 	return 0;
432 }
433 
434 static int snd_fm801_hw_params(struct snd_pcm_substream *substream,
435 			       struct snd_pcm_hw_params *hw_params)
436 {
437 	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
438 }
439 
440 static int snd_fm801_hw_free(struct snd_pcm_substream *substream)
441 {
442 	return snd_pcm_lib_free_pages(substream);
443 }
444 
445 static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
446 {
447 	struct fm801 *chip = snd_pcm_substream_chip(substream);
448 	struct snd_pcm_runtime *runtime = substream->runtime;
449 
450 	chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
451 	chip->ply_count = snd_pcm_lib_period_bytes(substream);
452 	spin_lock_irq(&chip->reg_lock);
453 	chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
454 			     FM801_STEREO | FM801_RATE_MASK |
455 			     FM801_CHANNELS_MASK);
456 	if (snd_pcm_format_width(runtime->format) == 16)
457 		chip->ply_ctrl |= FM801_16BIT;
458 	if (runtime->channels > 1) {
459 		chip->ply_ctrl |= FM801_STEREO;
460 		if (runtime->channels == 4)
461 			chip->ply_ctrl |= FM801_CHANNELS_4;
462 		else if (runtime->channels == 6)
463 			chip->ply_ctrl |= FM801_CHANNELS_6;
464 	}
465 	chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
466 	chip->ply_buf = 0;
467 	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
468 	fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
469 	chip->ply_buffer = runtime->dma_addr;
470 	chip->ply_pos = 0;
471 	fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
472 	fm801_writel(chip, PLY_BUF2,
473 		     chip->ply_buffer + (chip->ply_count % chip->ply_size));
474 	spin_unlock_irq(&chip->reg_lock);
475 	return 0;
476 }
477 
478 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
479 {
480 	struct fm801 *chip = snd_pcm_substream_chip(substream);
481 	struct snd_pcm_runtime *runtime = substream->runtime;
482 
483 	chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
484 	chip->cap_count = snd_pcm_lib_period_bytes(substream);
485 	spin_lock_irq(&chip->reg_lock);
486 	chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
487 			     FM801_STEREO | FM801_RATE_MASK);
488 	if (snd_pcm_format_width(runtime->format) == 16)
489 		chip->cap_ctrl |= FM801_16BIT;
490 	if (runtime->channels > 1)
491 		chip->cap_ctrl |= FM801_STEREO;
492 	chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
493 	chip->cap_buf = 0;
494 	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
495 	fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
496 	chip->cap_buffer = runtime->dma_addr;
497 	chip->cap_pos = 0;
498 	fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
499 	fm801_writel(chip, CAP_BUF2,
500 		     chip->cap_buffer + (chip->cap_count % chip->cap_size));
501 	spin_unlock_irq(&chip->reg_lock);
502 	return 0;
503 }
504 
505 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
506 {
507 	struct fm801 *chip = snd_pcm_substream_chip(substream);
508 	size_t ptr;
509 
510 	if (!(chip->ply_ctrl & FM801_START))
511 		return 0;
512 	spin_lock(&chip->reg_lock);
513 	ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
514 	if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
515 		ptr += chip->ply_count;
516 		ptr %= chip->ply_size;
517 	}
518 	spin_unlock(&chip->reg_lock);
519 	return bytes_to_frames(substream->runtime, ptr);
520 }
521 
522 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
523 {
524 	struct fm801 *chip = snd_pcm_substream_chip(substream);
525 	size_t ptr;
526 
527 	if (!(chip->cap_ctrl & FM801_START))
528 		return 0;
529 	spin_lock(&chip->reg_lock);
530 	ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
531 	if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
532 		ptr += chip->cap_count;
533 		ptr %= chip->cap_size;
534 	}
535 	spin_unlock(&chip->reg_lock);
536 	return bytes_to_frames(substream->runtime, ptr);
537 }
538 
539 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
540 {
541 	struct fm801 *chip = dev_id;
542 	unsigned short status;
543 	unsigned int tmp;
544 
545 	status = fm801_readw(chip, IRQ_STATUS);
546 	status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
547 	if (! status)
548 		return IRQ_NONE;
549 	/* ack first */
550 	fm801_writew(chip, IRQ_STATUS, status);
551 	if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
552 		spin_lock(&chip->reg_lock);
553 		chip->ply_buf++;
554 		chip->ply_pos += chip->ply_count;
555 		chip->ply_pos %= chip->ply_size;
556 		tmp = chip->ply_pos + chip->ply_count;
557 		tmp %= chip->ply_size;
558 		if (chip->ply_buf & 1)
559 			fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
560 		else
561 			fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
562 		spin_unlock(&chip->reg_lock);
563 		snd_pcm_period_elapsed(chip->playback_substream);
564 	}
565 	if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
566 		spin_lock(&chip->reg_lock);
567 		chip->cap_buf++;
568 		chip->cap_pos += chip->cap_count;
569 		chip->cap_pos %= chip->cap_size;
570 		tmp = chip->cap_pos + chip->cap_count;
571 		tmp %= chip->cap_size;
572 		if (chip->cap_buf & 1)
573 			fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
574 		else
575 			fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
576 		spin_unlock(&chip->reg_lock);
577 		snd_pcm_period_elapsed(chip->capture_substream);
578 	}
579 	if (chip->rmidi && (status & FM801_IRQ_MPU))
580 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
581 	if (status & FM801_IRQ_VOLUME)
582 		;/* TODO */
583 
584 	return IRQ_HANDLED;
585 }
586 
587 static struct snd_pcm_hardware snd_fm801_playback =
588 {
589 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
590 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
591 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
592 				 SNDRV_PCM_INFO_MMAP_VALID),
593 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
594 	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
595 	.rate_min =		5500,
596 	.rate_max =		48000,
597 	.channels_min =		1,
598 	.channels_max =		2,
599 	.buffer_bytes_max =	(128*1024),
600 	.period_bytes_min =	64,
601 	.period_bytes_max =	(128*1024),
602 	.periods_min =		1,
603 	.periods_max =		1024,
604 	.fifo_size =		0,
605 };
606 
607 static struct snd_pcm_hardware snd_fm801_capture =
608 {
609 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
610 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
611 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
612 				 SNDRV_PCM_INFO_MMAP_VALID),
613 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
614 	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
615 	.rate_min =		5500,
616 	.rate_max =		48000,
617 	.channels_min =		1,
618 	.channels_max =		2,
619 	.buffer_bytes_max =	(128*1024),
620 	.period_bytes_min =	64,
621 	.period_bytes_max =	(128*1024),
622 	.periods_min =		1,
623 	.periods_max =		1024,
624 	.fifo_size =		0,
625 };
626 
627 static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
628 {
629 	struct fm801 *chip = snd_pcm_substream_chip(substream);
630 	struct snd_pcm_runtime *runtime = substream->runtime;
631 	int err;
632 
633 	chip->playback_substream = substream;
634 	runtime->hw = snd_fm801_playback;
635 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
636 				   &hw_constraints_rates);
637 	if (chip->multichannel) {
638 		runtime->hw.channels_max = 6;
639 		snd_pcm_hw_constraint_list(runtime, 0,
640 					   SNDRV_PCM_HW_PARAM_CHANNELS,
641 					   &hw_constraints_channels);
642 	}
643 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
644 		return err;
645 	return 0;
646 }
647 
648 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
649 {
650 	struct fm801 *chip = snd_pcm_substream_chip(substream);
651 	struct snd_pcm_runtime *runtime = substream->runtime;
652 	int err;
653 
654 	chip->capture_substream = substream;
655 	runtime->hw = snd_fm801_capture;
656 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
657 				   &hw_constraints_rates);
658 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
659 		return err;
660 	return 0;
661 }
662 
663 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
664 {
665 	struct fm801 *chip = snd_pcm_substream_chip(substream);
666 
667 	chip->playback_substream = NULL;
668 	return 0;
669 }
670 
671 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
672 {
673 	struct fm801 *chip = snd_pcm_substream_chip(substream);
674 
675 	chip->capture_substream = NULL;
676 	return 0;
677 }
678 
679 static struct snd_pcm_ops snd_fm801_playback_ops = {
680 	.open =		snd_fm801_playback_open,
681 	.close =	snd_fm801_playback_close,
682 	.ioctl =	snd_pcm_lib_ioctl,
683 	.hw_params =	snd_fm801_hw_params,
684 	.hw_free =	snd_fm801_hw_free,
685 	.prepare =	snd_fm801_playback_prepare,
686 	.trigger =	snd_fm801_playback_trigger,
687 	.pointer =	snd_fm801_playback_pointer,
688 };
689 
690 static struct snd_pcm_ops snd_fm801_capture_ops = {
691 	.open =		snd_fm801_capture_open,
692 	.close =	snd_fm801_capture_close,
693 	.ioctl =	snd_pcm_lib_ioctl,
694 	.hw_params =	snd_fm801_hw_params,
695 	.hw_free =	snd_fm801_hw_free,
696 	.prepare =	snd_fm801_capture_prepare,
697 	.trigger =	snd_fm801_capture_trigger,
698 	.pointer =	snd_fm801_capture_pointer,
699 };
700 
701 static int snd_fm801_pcm(struct fm801 *chip, int device)
702 {
703 	struct snd_pcm *pcm;
704 	int err;
705 
706 	if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
707 		return err;
708 
709 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
710 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
711 
712 	pcm->private_data = chip;
713 	pcm->info_flags = 0;
714 	strcpy(pcm->name, "FM801");
715 	chip->pcm = pcm;
716 
717 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
718 					      snd_dma_pci_data(chip->pci),
719 					      chip->multichannel ? 128*1024 : 64*1024, 128*1024);
720 
721 	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
722 				     snd_pcm_alt_chmaps,
723 				     chip->multichannel ? 6 : 2, 0,
724 				     NULL);
725 }
726 
727 /*
728  *  TEA5757 radio
729  */
730 
731 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
732 
733 /* GPIO to TEA575x maps */
734 struct snd_fm801_tea575x_gpio {
735 	u8 data, clk, wren, most;
736 	char *name;
737 };
738 
739 static struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
740 	{ .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
741 	{ .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
742 	{ .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
743 };
744 
745 #define get_tea575x_gpio(chip) \
746 	(&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
747 
748 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
749 {
750 	struct fm801 *chip = tea->private_data;
751 	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
752 	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
753 
754 	reg &= ~(FM801_GPIO_GP(gpio.data) |
755 		 FM801_GPIO_GP(gpio.clk) |
756 		 FM801_GPIO_GP(gpio.wren));
757 
758 	reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
759 	reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
760 	/* WRITE_ENABLE is inverted */
761 	reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
762 
763 	fm801_writew(chip, GPIO_CTRL, reg);
764 }
765 
766 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
767 {
768 	struct fm801 *chip = tea->private_data;
769 	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
770 	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
771 	u8 ret;
772 
773 	ret = 0;
774 	if (reg & FM801_GPIO_GP(gpio.data))
775 		ret |= TEA575X_DATA;
776 	if (reg & FM801_GPIO_GP(gpio.most))
777 		ret |= TEA575X_MOST;
778 	return ret;
779 }
780 
781 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
782 {
783 	struct fm801 *chip = tea->private_data;
784 	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
785 	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
786 
787 	/* use GPIO lines and set write enable bit */
788 	reg |= FM801_GPIO_GS(gpio.data) |
789 	       FM801_GPIO_GS(gpio.wren) |
790 	       FM801_GPIO_GS(gpio.clk) |
791 	       FM801_GPIO_GS(gpio.most);
792 	if (output) {
793 		/* all of lines are in the write direction */
794 		/* clear data and clock lines */
795 		reg &= ~(FM801_GPIO_GD(gpio.data) |
796 			 FM801_GPIO_GD(gpio.wren) |
797 			 FM801_GPIO_GD(gpio.clk) |
798 			 FM801_GPIO_GP(gpio.data) |
799 			 FM801_GPIO_GP(gpio.clk) |
800 			 FM801_GPIO_GP(gpio.wren));
801 	} else {
802 		/* use GPIO lines, set data direction to input */
803 		reg |= FM801_GPIO_GD(gpio.data) |
804 		       FM801_GPIO_GD(gpio.most) |
805 		       FM801_GPIO_GP(gpio.data) |
806 		       FM801_GPIO_GP(gpio.most) |
807 		       FM801_GPIO_GP(gpio.wren);
808 		/* all of lines are in the write direction, except data */
809 		/* clear data, write enable and clock lines */
810 		reg &= ~(FM801_GPIO_GD(gpio.wren) |
811 			 FM801_GPIO_GD(gpio.clk) |
812 			 FM801_GPIO_GP(gpio.clk));
813 	}
814 
815 	fm801_writew(chip, GPIO_CTRL, reg);
816 }
817 
818 static struct snd_tea575x_ops snd_fm801_tea_ops = {
819 	.set_pins = snd_fm801_tea575x_set_pins,
820 	.get_pins = snd_fm801_tea575x_get_pins,
821 	.set_direction = snd_fm801_tea575x_set_direction,
822 };
823 #endif
824 
825 /*
826  *  Mixer routines
827  */
828 
829 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
830 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
831   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
832   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
833 
834 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
835 				 struct snd_ctl_elem_info *uinfo)
836 {
837 	int mask = (kcontrol->private_value >> 16) & 0xff;
838 
839 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
840 	uinfo->count = 1;
841 	uinfo->value.integer.min = 0;
842 	uinfo->value.integer.max = mask;
843 	return 0;
844 }
845 
846 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
847 				struct snd_ctl_elem_value *ucontrol)
848 {
849 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
850 	int reg = kcontrol->private_value & 0xff;
851 	int shift = (kcontrol->private_value >> 8) & 0xff;
852 	int mask = (kcontrol->private_value >> 16) & 0xff;
853 	int invert = (kcontrol->private_value >> 24) & 0xff;
854 
855 	ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift) & mask;
856 	if (invert)
857 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
858 	return 0;
859 }
860 
861 static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
862 				struct snd_ctl_elem_value *ucontrol)
863 {
864 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
865 	int reg = kcontrol->private_value & 0xff;
866 	int shift = (kcontrol->private_value >> 8) & 0xff;
867 	int mask = (kcontrol->private_value >> 16) & 0xff;
868 	int invert = (kcontrol->private_value >> 24) & 0xff;
869 	unsigned short val;
870 
871 	val = (ucontrol->value.integer.value[0] & mask);
872 	if (invert)
873 		val = mask - val;
874 	return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
875 }
876 
877 #define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
878 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
879   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
880   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
881 #define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
882 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
883   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
884   .name = xname, .info = snd_fm801_info_double, \
885   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
886   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
887   .tlv = { .p = (xtlv) } }
888 
889 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
890 				 struct snd_ctl_elem_info *uinfo)
891 {
892 	int mask = (kcontrol->private_value >> 16) & 0xff;
893 
894 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
895 	uinfo->count = 2;
896 	uinfo->value.integer.min = 0;
897 	uinfo->value.integer.max = mask;
898 	return 0;
899 }
900 
901 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
902 				struct snd_ctl_elem_value *ucontrol)
903 {
904 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
905         int reg = kcontrol->private_value & 0xff;
906 	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
907 	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
908 	int mask = (kcontrol->private_value >> 16) & 0xff;
909 	int invert = (kcontrol->private_value >> 24) & 0xff;
910 
911 	spin_lock_irq(&chip->reg_lock);
912 	ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift_left) & mask;
913 	ucontrol->value.integer.value[1] = (inw(chip->port + reg) >> shift_right) & mask;
914 	spin_unlock_irq(&chip->reg_lock);
915 	if (invert) {
916 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
917 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
918 	}
919 	return 0;
920 }
921 
922 static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
923 				struct snd_ctl_elem_value *ucontrol)
924 {
925 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
926 	int reg = kcontrol->private_value & 0xff;
927 	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
928 	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
929 	int mask = (kcontrol->private_value >> 16) & 0xff;
930 	int invert = (kcontrol->private_value >> 24) & 0xff;
931 	unsigned short val1, val2;
932 
933 	val1 = ucontrol->value.integer.value[0] & mask;
934 	val2 = ucontrol->value.integer.value[1] & mask;
935 	if (invert) {
936 		val1 = mask - val1;
937 		val2 = mask - val2;
938 	}
939 	return snd_fm801_update_bits(chip, reg,
940 				     (mask << shift_left) | (mask << shift_right),
941 				     (val1 << shift_left ) | (val2 << shift_right));
942 }
943 
944 static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
945 			      struct snd_ctl_elem_info *uinfo)
946 {
947 	static const char * const texts[5] = {
948 		"AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
949 	};
950 
951 	return snd_ctl_enum_info(uinfo, 1, 5, texts);
952 }
953 
954 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
955 			     struct snd_ctl_elem_value *ucontrol)
956 {
957 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
958         unsigned short val;
959 
960 	val = fm801_readw(chip, REC_SRC) & 7;
961 	if (val > 4)
962 		val = 4;
963         ucontrol->value.enumerated.item[0] = val;
964         return 0;
965 }
966 
967 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
968 			     struct snd_ctl_elem_value *ucontrol)
969 {
970 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
971         unsigned short val;
972 
973         if ((val = ucontrol->value.enumerated.item[0]) > 4)
974                 return -EINVAL;
975 	return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
976 }
977 
978 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
979 
980 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
981 
982 static struct snd_kcontrol_new snd_fm801_controls[] = {
983 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
984 		 db_scale_dsp),
985 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
986 FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
987 		 db_scale_dsp),
988 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
989 FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
990 		 db_scale_dsp),
991 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
992 {
993 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
994 	.name = "Digital Capture Source",
995 	.info = snd_fm801_info_mux,
996 	.get = snd_fm801_get_mux,
997 	.put = snd_fm801_put_mux,
998 }
999 };
1000 
1001 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
1002 
1003 static struct snd_kcontrol_new snd_fm801_controls_multi[] = {
1004 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
1005 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
1006 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
1007 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
1008 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
1009 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1010 };
1011 
1012 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1013 {
1014 	struct fm801 *chip = bus->private_data;
1015 	chip->ac97_bus = NULL;
1016 }
1017 
1018 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1019 {
1020 	struct fm801 *chip = ac97->private_data;
1021 	if (ac97->num == 0) {
1022 		chip->ac97 = NULL;
1023 	} else {
1024 		chip->ac97_sec = NULL;
1025 	}
1026 }
1027 
1028 static int snd_fm801_mixer(struct fm801 *chip)
1029 {
1030 	struct snd_ac97_template ac97;
1031 	unsigned int i;
1032 	int err;
1033 	static struct snd_ac97_bus_ops ops = {
1034 		.write = snd_fm801_codec_write,
1035 		.read = snd_fm801_codec_read,
1036 	};
1037 
1038 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1039 		return err;
1040 	chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1041 
1042 	memset(&ac97, 0, sizeof(ac97));
1043 	ac97.private_data = chip;
1044 	ac97.private_free = snd_fm801_mixer_free_ac97;
1045 	if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1046 		return err;
1047 	if (chip->secondary) {
1048 		ac97.num = 1;
1049 		ac97.addr = chip->secondary_addr;
1050 		if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1051 			return err;
1052 	}
1053 	for (i = 0; i < FM801_CONTROLS; i++)
1054 		snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls[i], chip));
1055 	if (chip->multichannel) {
1056 		for (i = 0; i < FM801_CONTROLS_MULTI; i++)
1057 			snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1058 	}
1059 	return 0;
1060 }
1061 
1062 /*
1063  *  initialization routines
1064  */
1065 
1066 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1067 			  unsigned short reg, unsigned long waits)
1068 {
1069 	unsigned long timeout = jiffies + waits;
1070 
1071 	fm801_writew(chip, AC97_CMD,
1072 		     reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1073 	udelay(5);
1074 	do {
1075 		if ((fm801_readw(chip, AC97_CMD) &
1076 		     (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1077 			return 0;
1078 		schedule_timeout_uninterruptible(1);
1079 	} while (time_after(timeout, jiffies));
1080 	return -EIO;
1081 }
1082 
1083 static int snd_fm801_chip_init(struct fm801 *chip, int resume)
1084 {
1085 	unsigned short cmdw;
1086 
1087 	if (chip->tea575x_tuner & TUNER_ONLY)
1088 		goto __ac97_ok;
1089 
1090 	/* codec cold reset + AC'97 warm reset */
1091 	fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1092 	fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1093 	udelay(100);
1094 	fm801_writew(chip, CODEC_CTRL, 0);
1095 
1096 	if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0)
1097 		if (!resume) {
1098 			dev_info(chip->card->dev,
1099 				 "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1100 			chip->tea575x_tuner = 3 | TUNER_ONLY;
1101 			goto __ac97_ok;
1102 		}
1103 
1104 	if (chip->multichannel) {
1105 		if (chip->secondary_addr) {
1106 			wait_for_codec(chip, chip->secondary_addr,
1107 				       AC97_VENDOR_ID1, msecs_to_jiffies(50));
1108 		} else {
1109 			/* my card has the secondary codec */
1110 			/* at address #3, so the loop is inverted */
1111 			int i;
1112 			for (i = 3; i > 0; i--) {
1113 				if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1114 						     msecs_to_jiffies(50))) {
1115 					cmdw = fm801_readw(chip, AC97_DATA);
1116 					if (cmdw != 0xffff && cmdw != 0) {
1117 						chip->secondary = 1;
1118 						chip->secondary_addr = i;
1119 						break;
1120 					}
1121 				}
1122 			}
1123 		}
1124 
1125 		/* the recovery phase, it seems that probing for non-existing codec might */
1126 		/* cause timeout problems */
1127 		wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1128 	}
1129 
1130       __ac97_ok:
1131 
1132 	/* init volume */
1133 	fm801_writew(chip, PCM_VOL, 0x0808);
1134 	fm801_writew(chip, FM_VOL, 0x9f1f);
1135 	fm801_writew(chip, I2S_VOL, 0x8808);
1136 
1137 	/* I2S control - I2S mode */
1138 	fm801_writew(chip, I2S_MODE, 0x0003);
1139 
1140 	/* interrupt setup */
1141 	cmdw = fm801_readw(chip, IRQ_MASK);
1142 	if (chip->irq < 0)
1143 		cmdw |= 0x00c3;		/* mask everything, no PCM nor MPU */
1144 	else
1145 		cmdw &= ~0x0083;	/* unmask MPU, PLAYBACK & CAPTURE */
1146 	fm801_writew(chip, IRQ_MASK, cmdw);
1147 
1148 	/* interrupt clear */
1149 	fm801_writew(chip, IRQ_STATUS,
1150 		     FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1151 
1152 	return 0;
1153 }
1154 
1155 
1156 static int snd_fm801_free(struct fm801 *chip)
1157 {
1158 	unsigned short cmdw;
1159 
1160 	if (chip->irq < 0)
1161 		goto __end_hw;
1162 
1163 	/* interrupt setup - mask everything */
1164 	cmdw = fm801_readw(chip, IRQ_MASK);
1165 	cmdw |= 0x00c3;
1166 	fm801_writew(chip, IRQ_MASK, cmdw);
1167 
1168       __end_hw:
1169 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1170 	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1171 		snd_tea575x_exit(&chip->tea);
1172 		v4l2_device_unregister(&chip->v4l2_dev);
1173 	}
1174 #endif
1175 	return 0;
1176 }
1177 
1178 static int snd_fm801_dev_free(struct snd_device *device)
1179 {
1180 	struct fm801 *chip = device->device_data;
1181 	return snd_fm801_free(chip);
1182 }
1183 
1184 static int snd_fm801_create(struct snd_card *card,
1185 			    struct pci_dev *pci,
1186 			    int tea575x_tuner,
1187 			    int radio_nr,
1188 			    struct fm801 **rchip)
1189 {
1190 	struct fm801 *chip;
1191 	int err;
1192 	static struct snd_device_ops ops = {
1193 		.dev_free =	snd_fm801_dev_free,
1194 	};
1195 
1196 	*rchip = NULL;
1197 	if ((err = pcim_enable_device(pci)) < 0)
1198 		return err;
1199 	chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1200 	if (chip == NULL)
1201 		return -ENOMEM;
1202 	spin_lock_init(&chip->reg_lock);
1203 	chip->card = card;
1204 	chip->pci = pci;
1205 	chip->irq = -1;
1206 	chip->tea575x_tuner = tea575x_tuner;
1207 	if ((err = pci_request_regions(pci, "FM801")) < 0)
1208 		return err;
1209 	chip->port = pci_resource_start(pci, 0);
1210 	if ((tea575x_tuner & TUNER_ONLY) == 0) {
1211 		if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1212 				IRQF_SHARED, KBUILD_MODNAME, chip)) {
1213 			dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1214 			snd_fm801_free(chip);
1215 			return -EBUSY;
1216 		}
1217 		chip->irq = pci->irq;
1218 		pci_set_master(pci);
1219 	}
1220 
1221 	if (pci->revision >= 0xb1)	/* FM801-AU */
1222 		chip->multichannel = 1;
1223 
1224 	snd_fm801_chip_init(chip, 0);
1225 	/* init might set tuner access method */
1226 	tea575x_tuner = chip->tea575x_tuner;
1227 
1228 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1229 		snd_fm801_free(chip);
1230 		return err;
1231 	}
1232 
1233 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1234 	err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1235 	if (err < 0) {
1236 		snd_fm801_free(chip);
1237 		return err;
1238 	}
1239 	chip->tea.v4l2_dev = &chip->v4l2_dev;
1240 	chip->tea.radio_nr = radio_nr;
1241 	chip->tea.private_data = chip;
1242 	chip->tea.ops = &snd_fm801_tea_ops;
1243 	sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1244 	if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1245 	    (tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1246 		if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1247 			dev_err(card->dev, "TEA575x radio not found\n");
1248 			snd_fm801_free(chip);
1249 			return -ENODEV;
1250 		}
1251 	} else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1252 		/* autodetect tuner connection */
1253 		for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1254 			chip->tea575x_tuner = tea575x_tuner;
1255 			if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1256 				dev_info(card->dev,
1257 					 "detected TEA575x radio type %s\n",
1258 					   get_tea575x_gpio(chip)->name);
1259 				break;
1260 			}
1261 		}
1262 		if (tea575x_tuner == 4) {
1263 			dev_err(card->dev, "TEA575x radio not found\n");
1264 			chip->tea575x_tuner = TUNER_DISABLED;
1265 		}
1266 	}
1267 	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1268 		strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1269 			sizeof(chip->tea.card));
1270 	}
1271 #endif
1272 
1273 	*rchip = chip;
1274 	return 0;
1275 }
1276 
1277 static int snd_card_fm801_probe(struct pci_dev *pci,
1278 				const struct pci_device_id *pci_id)
1279 {
1280 	static int dev;
1281 	struct snd_card *card;
1282 	struct fm801 *chip;
1283 	struct snd_opl3 *opl3;
1284 	int err;
1285 
1286         if (dev >= SNDRV_CARDS)
1287                 return -ENODEV;
1288 	if (!enable[dev]) {
1289 		dev++;
1290 		return -ENOENT;
1291 	}
1292 
1293 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1294 			   0, &card);
1295 	if (err < 0)
1296 		return err;
1297 	if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip)) < 0) {
1298 		snd_card_free(card);
1299 		return err;
1300 	}
1301 	card->private_data = chip;
1302 
1303 	strcpy(card->driver, "FM801");
1304 	strcpy(card->shortname, "ForteMedia FM801-");
1305 	strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1306 	sprintf(card->longname, "%s at 0x%lx, irq %i",
1307 		card->shortname, chip->port, chip->irq);
1308 
1309 	if (chip->tea575x_tuner & TUNER_ONLY)
1310 		goto __fm801_tuner_only;
1311 
1312 	if ((err = snd_fm801_pcm(chip, 0)) < 0) {
1313 		snd_card_free(card);
1314 		return err;
1315 	}
1316 	if ((err = snd_fm801_mixer(chip)) < 0) {
1317 		snd_card_free(card);
1318 		return err;
1319 	}
1320 	if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1321 				       chip->port + FM801_MPU401_DATA,
1322 				       MPU401_INFO_INTEGRATED |
1323 				       MPU401_INFO_IRQ_HOOK,
1324 				       -1, &chip->rmidi)) < 0) {
1325 		snd_card_free(card);
1326 		return err;
1327 	}
1328 	if ((err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1329 				   chip->port + FM801_OPL3_BANK1,
1330 				   OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1331 		snd_card_free(card);
1332 		return err;
1333 	}
1334 	if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1335 		snd_card_free(card);
1336 		return err;
1337 	}
1338 
1339       __fm801_tuner_only:
1340 	if ((err = snd_card_register(card)) < 0) {
1341 		snd_card_free(card);
1342 		return err;
1343 	}
1344 	pci_set_drvdata(pci, card);
1345 	dev++;
1346 	return 0;
1347 }
1348 
1349 static void snd_card_fm801_remove(struct pci_dev *pci)
1350 {
1351 	snd_card_free(pci_get_drvdata(pci));
1352 }
1353 
1354 #ifdef CONFIG_PM_SLEEP
1355 static unsigned char saved_regs[] = {
1356 	FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1357 	FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1358 	FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1359 	FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1360 };
1361 
1362 static int snd_fm801_suspend(struct device *dev)
1363 {
1364 	struct snd_card *card = dev_get_drvdata(dev);
1365 	struct fm801 *chip = card->private_data;
1366 	int i;
1367 
1368 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1369 	snd_pcm_suspend_all(chip->pcm);
1370 	snd_ac97_suspend(chip->ac97);
1371 	snd_ac97_suspend(chip->ac97_sec);
1372 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1373 		chip->saved_regs[i] = inw(chip->port + saved_regs[i]);
1374 	/* FIXME: tea575x suspend */
1375 	return 0;
1376 }
1377 
1378 static int snd_fm801_resume(struct device *dev)
1379 {
1380 	struct snd_card *card = dev_get_drvdata(dev);
1381 	struct fm801 *chip = card->private_data;
1382 	int i;
1383 
1384 	snd_fm801_chip_init(chip, 1);
1385 	snd_ac97_resume(chip->ac97);
1386 	snd_ac97_resume(chip->ac97_sec);
1387 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1388 		outw(chip->saved_regs[i], chip->port + saved_regs[i]);
1389 
1390 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1391 	return 0;
1392 }
1393 
1394 static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1395 #define SND_FM801_PM_OPS	&snd_fm801_pm
1396 #else
1397 #define SND_FM801_PM_OPS	NULL
1398 #endif /* CONFIG_PM_SLEEP */
1399 
1400 static struct pci_driver fm801_driver = {
1401 	.name = KBUILD_MODNAME,
1402 	.id_table = snd_fm801_ids,
1403 	.probe = snd_card_fm801_probe,
1404 	.remove = snd_card_fm801_remove,
1405 	.driver = {
1406 		.pm = SND_FM801_PM_OPS,
1407 	},
1408 };
1409 
1410 module_pci_driver(fm801_driver);
1411