xref: /linux/sound/pci/fm801.c (revision 14b9f27886ce69c5f11445d107dd020f6fc5754b)
1 /*
2  *  The driver for the ForteMedia FM801 based soundcards
3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4  *
5  *  Support FM only card by Andy Shevchenko <andy@smile.org.ua>
6  *
7  *   This program is free software; you can redistribute it and/or modify
8  *   it under the terms of the GNU General Public License as published by
9  *   the Free Software Foundation; either version 2 of the License, or
10  *   (at your option) any later version.
11  *
12  *   This program is distributed in the hope that it will be useful,
13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *   GNU General Public License for more details.
16  *
17  *   You should have received a copy of the GNU General Public License
18  *   along with this program; if not, write to the Free Software
19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  *
21  */
22 
23 #include <linux/delay.h>
24 #include <linux/init.h>
25 #include <linux/interrupt.h>
26 #include <linux/pci.h>
27 #include <linux/slab.h>
28 #include <linux/moduleparam.h>
29 #include <sound/core.h>
30 #include <sound/pcm.h>
31 #include <sound/tlv.h>
32 #include <sound/ac97_codec.h>
33 #include <sound/mpu401.h>
34 #include <sound/opl3.h>
35 #include <sound/initval.h>
36 
37 #include <asm/io.h>
38 
39 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
40 #include <sound/tea575x-tuner.h>
41 #endif
42 
43 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
44 MODULE_DESCRIPTION("ForteMedia FM801");
45 MODULE_LICENSE("GPL");
46 MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
47 		"{Genius,SoundMaker Live 5.1}}");
48 
49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
50 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
51 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
52 /*
53  *  Enable TEA575x tuner
54  *    1 = MediaForte 256-PCS
55  *    2 = MediaForte 256-PCP
56  *    3 = MediaForte 64-PCR
57  *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
58  *  High 16-bits are video (radio) device number + 1
59  */
60 static int tea575x_tuner[SNDRV_CARDS];
61 
62 module_param_array(index, int, NULL, 0444);
63 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
64 module_param_array(id, charp, NULL, 0444);
65 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
66 module_param_array(enable, bool, NULL, 0444);
67 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
68 module_param_array(tea575x_tuner, int, NULL, 0444);
69 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).");
70 
71 #define TUNER_ONLY		(1<<4)
72 #define TUNER_TYPE_MASK		(~TUNER_ONLY & 0xFFFF)
73 
74 /*
75  *  Direct registers
76  */
77 
78 #define FM801_REG(chip, reg)	(chip->port + FM801_##reg)
79 
80 #define FM801_PCM_VOL		0x00	/* PCM Output Volume */
81 #define FM801_FM_VOL		0x02	/* FM Output Volume */
82 #define FM801_I2S_VOL		0x04	/* I2S Volume */
83 #define FM801_REC_SRC		0x06	/* Record Source */
84 #define FM801_PLY_CTRL		0x08	/* Playback Control */
85 #define FM801_PLY_COUNT		0x0a	/* Playback Count */
86 #define FM801_PLY_BUF1		0x0c	/* Playback Bufer I */
87 #define FM801_PLY_BUF2		0x10	/* Playback Buffer II */
88 #define FM801_CAP_CTRL		0x14	/* Capture Control */
89 #define FM801_CAP_COUNT		0x16	/* Capture Count */
90 #define FM801_CAP_BUF1		0x18	/* Capture Buffer I */
91 #define FM801_CAP_BUF2		0x1c	/* Capture Buffer II */
92 #define FM801_CODEC_CTRL	0x22	/* Codec Control */
93 #define FM801_I2S_MODE		0x24	/* I2S Mode Control */
94 #define FM801_VOLUME		0x26	/* Volume Up/Down/Mute Status */
95 #define FM801_I2C_CTRL		0x29	/* I2C Control */
96 #define FM801_AC97_CMD		0x2a	/* AC'97 Command */
97 #define FM801_AC97_DATA		0x2c	/* AC'97 Data */
98 #define FM801_MPU401_DATA	0x30	/* MPU401 Data */
99 #define FM801_MPU401_CMD	0x31	/* MPU401 Command */
100 #define FM801_GPIO_CTRL		0x52	/* General Purpose I/O Control */
101 #define FM801_GEN_CTRL		0x54	/* General Control */
102 #define FM801_IRQ_MASK		0x56	/* Interrupt Mask */
103 #define FM801_IRQ_STATUS	0x5a	/* Interrupt Status */
104 #define FM801_OPL3_BANK0	0x68	/* OPL3 Status Read / Bank 0 Write */
105 #define FM801_OPL3_DATA0	0x69	/* OPL3 Data 0 Write */
106 #define FM801_OPL3_BANK1	0x6a	/* OPL3 Bank 1 Write */
107 #define FM801_OPL3_DATA1	0x6b	/* OPL3 Bank 1 Write */
108 #define FM801_POWERDOWN		0x70	/* Blocks Power Down Control */
109 
110 /* codec access */
111 #define FM801_AC97_READ		(1<<7)	/* read=1, write=0 */
112 #define FM801_AC97_VALID	(1<<8)	/* port valid=1 */
113 #define FM801_AC97_BUSY		(1<<9)	/* busy=1 */
114 #define FM801_AC97_ADDR_SHIFT	10	/* codec id (2bit) */
115 
116 /* playback and record control register bits */
117 #define FM801_BUF1_LAST		(1<<1)
118 #define FM801_BUF2_LAST		(1<<2)
119 #define FM801_START		(1<<5)
120 #define FM801_PAUSE		(1<<6)
121 #define FM801_IMMED_STOP	(1<<7)
122 #define FM801_RATE_SHIFT	8
123 #define FM801_RATE_MASK		(15 << FM801_RATE_SHIFT)
124 #define FM801_CHANNELS_4	(1<<12)	/* playback only */
125 #define FM801_CHANNELS_6	(2<<12)	/* playback only */
126 #define FM801_CHANNELS_6MS	(3<<12)	/* playback only */
127 #define FM801_CHANNELS_MASK	(3<<12)
128 #define FM801_16BIT		(1<<14)
129 #define FM801_STEREO		(1<<15)
130 
131 /* IRQ status bits */
132 #define FM801_IRQ_PLAYBACK	(1<<8)
133 #define FM801_IRQ_CAPTURE	(1<<9)
134 #define FM801_IRQ_VOLUME	(1<<14)
135 #define FM801_IRQ_MPU		(1<<15)
136 
137 /* GPIO control register */
138 #define FM801_GPIO_GP0		(1<<0)	/* read/write */
139 #define FM801_GPIO_GP1		(1<<1)
140 #define FM801_GPIO_GP2		(1<<2)
141 #define FM801_GPIO_GP3		(1<<3)
142 #define FM801_GPIO_GP(x)	(1<<(0+(x)))
143 #define FM801_GPIO_GD0		(1<<8)	/* directions: 1 = input, 0 = output*/
144 #define FM801_GPIO_GD1		(1<<9)
145 #define FM801_GPIO_GD2		(1<<10)
146 #define FM801_GPIO_GD3		(1<<11)
147 #define FM801_GPIO_GD(x)	(1<<(8+(x)))
148 #define FM801_GPIO_GS0		(1<<12)	/* function select: */
149 #define FM801_GPIO_GS1		(1<<13)	/*    1 = GPIO */
150 #define FM801_GPIO_GS2		(1<<14)	/*    0 = other (S/PDIF, VOL) */
151 #define FM801_GPIO_GS3		(1<<15)
152 #define FM801_GPIO_GS(x)	(1<<(12+(x)))
153 
154 /*
155 
156  */
157 
158 struct fm801 {
159 	int irq;
160 
161 	unsigned long port;	/* I/O port number */
162 	unsigned int multichannel: 1,	/* multichannel support */
163 		     secondary: 1;	/* secondary codec */
164 	unsigned char secondary_addr;	/* address of the secondary codec */
165 	unsigned int tea575x_tuner;	/* tuner access method & flags */
166 
167 	unsigned short ply_ctrl; /* playback control */
168 	unsigned short cap_ctrl; /* capture control */
169 
170 	unsigned long ply_buffer;
171 	unsigned int ply_buf;
172 	unsigned int ply_count;
173 	unsigned int ply_size;
174 	unsigned int ply_pos;
175 
176 	unsigned long cap_buffer;
177 	unsigned int cap_buf;
178 	unsigned int cap_count;
179 	unsigned int cap_size;
180 	unsigned int cap_pos;
181 
182 	struct snd_ac97_bus *ac97_bus;
183 	struct snd_ac97 *ac97;
184 	struct snd_ac97 *ac97_sec;
185 
186 	struct pci_dev *pci;
187 	struct snd_card *card;
188 	struct snd_pcm *pcm;
189 	struct snd_rawmidi *rmidi;
190 	struct snd_pcm_substream *playback_substream;
191 	struct snd_pcm_substream *capture_substream;
192 	unsigned int p_dma_size;
193 	unsigned int c_dma_size;
194 
195 	spinlock_t reg_lock;
196 	struct snd_info_entry *proc_entry;
197 
198 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
199 	struct snd_tea575x tea;
200 #endif
201 
202 #ifdef CONFIG_PM
203 	u16 saved_regs[0x20];
204 #endif
205 };
206 
207 static DEFINE_PCI_DEVICE_TABLE(snd_fm801_ids) = {
208 	{ 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
209 	{ 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
210 	{ 0, }
211 };
212 
213 MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
214 
215 /*
216  *  common I/O routines
217  */
218 
219 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
220 				 unsigned short mask, unsigned short value)
221 {
222 	int change;
223 	unsigned long flags;
224 	unsigned short old, new;
225 
226 	spin_lock_irqsave(&chip->reg_lock, flags);
227 	old = inw(chip->port + reg);
228 	new = (old & ~mask) | value;
229 	change = old != new;
230 	if (change)
231 		outw(new, chip->port + reg);
232 	spin_unlock_irqrestore(&chip->reg_lock, flags);
233 	return change;
234 }
235 
236 static void snd_fm801_codec_write(struct snd_ac97 *ac97,
237 				  unsigned short reg,
238 				  unsigned short val)
239 {
240 	struct fm801 *chip = ac97->private_data;
241 	int idx;
242 
243 	/*
244 	 *  Wait until the codec interface is not ready..
245 	 */
246 	for (idx = 0; idx < 100; idx++) {
247 		if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
248 			goto ok1;
249 		udelay(10);
250 	}
251 	snd_printk(KERN_ERR "AC'97 interface is busy (1)\n");
252 	return;
253 
254  ok1:
255 	/* write data and address */
256 	outw(val, FM801_REG(chip, AC97_DATA));
257 	outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT), FM801_REG(chip, AC97_CMD));
258 	/*
259 	 *  Wait until the write command is not completed..
260          */
261 	for (idx = 0; idx < 1000; idx++) {
262 		if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
263 			return;
264 		udelay(10);
265 	}
266 	snd_printk(KERN_ERR "AC'97 interface #%d is busy (2)\n", ac97->num);
267 }
268 
269 static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
270 {
271 	struct fm801 *chip = ac97->private_data;
272 	int idx;
273 
274 	/*
275 	 *  Wait until the codec interface is not ready..
276 	 */
277 	for (idx = 0; idx < 100; idx++) {
278 		if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
279 			goto ok1;
280 		udelay(10);
281 	}
282 	snd_printk(KERN_ERR "AC'97 interface is busy (1)\n");
283 	return 0;
284 
285  ok1:
286 	/* read command */
287 	outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ,
288 	     FM801_REG(chip, AC97_CMD));
289 	for (idx = 0; idx < 100; idx++) {
290 		if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
291 			goto ok2;
292 		udelay(10);
293 	}
294 	snd_printk(KERN_ERR "AC'97 interface #%d is busy (2)\n", ac97->num);
295 	return 0;
296 
297  ok2:
298 	for (idx = 0; idx < 1000; idx++) {
299 		if (inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_VALID)
300 			goto ok3;
301 		udelay(10);
302 	}
303 	snd_printk(KERN_ERR "AC'97 interface #%d is not valid (2)\n", ac97->num);
304 	return 0;
305 
306  ok3:
307 	return inw(FM801_REG(chip, AC97_DATA));
308 }
309 
310 static unsigned int rates[] = {
311   5500,  8000,  9600, 11025,
312   16000, 19200, 22050, 32000,
313   38400, 44100, 48000
314 };
315 
316 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
317 	.count = ARRAY_SIZE(rates),
318 	.list = rates,
319 	.mask = 0,
320 };
321 
322 static unsigned int channels[] = {
323   2, 4, 6
324 };
325 
326 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
327 	.count = ARRAY_SIZE(channels),
328 	.list = channels,
329 	.mask = 0,
330 };
331 
332 /*
333  *  Sample rate routines
334  */
335 
336 static unsigned short snd_fm801_rate_bits(unsigned int rate)
337 {
338 	unsigned int idx;
339 
340 	for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
341 		if (rates[idx] == rate)
342 			return idx;
343 	snd_BUG();
344 	return ARRAY_SIZE(rates) - 1;
345 }
346 
347 /*
348  *  PCM part
349  */
350 
351 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
352 				      int cmd)
353 {
354 	struct fm801 *chip = snd_pcm_substream_chip(substream);
355 
356 	spin_lock(&chip->reg_lock);
357 	switch (cmd) {
358 	case SNDRV_PCM_TRIGGER_START:
359 		chip->ply_ctrl &= ~(FM801_BUF1_LAST |
360 				     FM801_BUF2_LAST |
361 				     FM801_PAUSE);
362 		chip->ply_ctrl |= FM801_START |
363 				   FM801_IMMED_STOP;
364 		break;
365 	case SNDRV_PCM_TRIGGER_STOP:
366 		chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
367 		break;
368 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
369 	case SNDRV_PCM_TRIGGER_SUSPEND:
370 		chip->ply_ctrl |= FM801_PAUSE;
371 		break;
372 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
373 	case SNDRV_PCM_TRIGGER_RESUME:
374 		chip->ply_ctrl &= ~FM801_PAUSE;
375 		break;
376 	default:
377 		spin_unlock(&chip->reg_lock);
378 		snd_BUG();
379 		return -EINVAL;
380 	}
381 	outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
382 	spin_unlock(&chip->reg_lock);
383 	return 0;
384 }
385 
386 static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
387 				     int cmd)
388 {
389 	struct fm801 *chip = snd_pcm_substream_chip(substream);
390 
391 	spin_lock(&chip->reg_lock);
392 	switch (cmd) {
393 	case SNDRV_PCM_TRIGGER_START:
394 		chip->cap_ctrl &= ~(FM801_BUF1_LAST |
395 				     FM801_BUF2_LAST |
396 				     FM801_PAUSE);
397 		chip->cap_ctrl |= FM801_START |
398 				   FM801_IMMED_STOP;
399 		break;
400 	case SNDRV_PCM_TRIGGER_STOP:
401 		chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
402 		break;
403 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
404 	case SNDRV_PCM_TRIGGER_SUSPEND:
405 		chip->cap_ctrl |= FM801_PAUSE;
406 		break;
407 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
408 	case SNDRV_PCM_TRIGGER_RESUME:
409 		chip->cap_ctrl &= ~FM801_PAUSE;
410 		break;
411 	default:
412 		spin_unlock(&chip->reg_lock);
413 		snd_BUG();
414 		return -EINVAL;
415 	}
416 	outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
417 	spin_unlock(&chip->reg_lock);
418 	return 0;
419 }
420 
421 static int snd_fm801_hw_params(struct snd_pcm_substream *substream,
422 			       struct snd_pcm_hw_params *hw_params)
423 {
424 	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
425 }
426 
427 static int snd_fm801_hw_free(struct snd_pcm_substream *substream)
428 {
429 	return snd_pcm_lib_free_pages(substream);
430 }
431 
432 static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
433 {
434 	struct fm801 *chip = snd_pcm_substream_chip(substream);
435 	struct snd_pcm_runtime *runtime = substream->runtime;
436 
437 	chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
438 	chip->ply_count = snd_pcm_lib_period_bytes(substream);
439 	spin_lock_irq(&chip->reg_lock);
440 	chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
441 			     FM801_STEREO | FM801_RATE_MASK |
442 			     FM801_CHANNELS_MASK);
443 	if (snd_pcm_format_width(runtime->format) == 16)
444 		chip->ply_ctrl |= FM801_16BIT;
445 	if (runtime->channels > 1) {
446 		chip->ply_ctrl |= FM801_STEREO;
447 		if (runtime->channels == 4)
448 			chip->ply_ctrl |= FM801_CHANNELS_4;
449 		else if (runtime->channels == 6)
450 			chip->ply_ctrl |= FM801_CHANNELS_6;
451 	}
452 	chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
453 	chip->ply_buf = 0;
454 	outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
455 	outw(chip->ply_count - 1, FM801_REG(chip, PLY_COUNT));
456 	chip->ply_buffer = runtime->dma_addr;
457 	chip->ply_pos = 0;
458 	outl(chip->ply_buffer, FM801_REG(chip, PLY_BUF1));
459 	outl(chip->ply_buffer + (chip->ply_count % chip->ply_size), FM801_REG(chip, PLY_BUF2));
460 	spin_unlock_irq(&chip->reg_lock);
461 	return 0;
462 }
463 
464 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
465 {
466 	struct fm801 *chip = snd_pcm_substream_chip(substream);
467 	struct snd_pcm_runtime *runtime = substream->runtime;
468 
469 	chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
470 	chip->cap_count = snd_pcm_lib_period_bytes(substream);
471 	spin_lock_irq(&chip->reg_lock);
472 	chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
473 			     FM801_STEREO | FM801_RATE_MASK);
474 	if (snd_pcm_format_width(runtime->format) == 16)
475 		chip->cap_ctrl |= FM801_16BIT;
476 	if (runtime->channels > 1)
477 		chip->cap_ctrl |= FM801_STEREO;
478 	chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
479 	chip->cap_buf = 0;
480 	outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
481 	outw(chip->cap_count - 1, FM801_REG(chip, CAP_COUNT));
482 	chip->cap_buffer = runtime->dma_addr;
483 	chip->cap_pos = 0;
484 	outl(chip->cap_buffer, FM801_REG(chip, CAP_BUF1));
485 	outl(chip->cap_buffer + (chip->cap_count % chip->cap_size), FM801_REG(chip, CAP_BUF2));
486 	spin_unlock_irq(&chip->reg_lock);
487 	return 0;
488 }
489 
490 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
491 {
492 	struct fm801 *chip = snd_pcm_substream_chip(substream);
493 	size_t ptr;
494 
495 	if (!(chip->ply_ctrl & FM801_START))
496 		return 0;
497 	spin_lock(&chip->reg_lock);
498 	ptr = chip->ply_pos + (chip->ply_count - 1) - inw(FM801_REG(chip, PLY_COUNT));
499 	if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_PLAYBACK) {
500 		ptr += chip->ply_count;
501 		ptr %= chip->ply_size;
502 	}
503 	spin_unlock(&chip->reg_lock);
504 	return bytes_to_frames(substream->runtime, ptr);
505 }
506 
507 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
508 {
509 	struct fm801 *chip = snd_pcm_substream_chip(substream);
510 	size_t ptr;
511 
512 	if (!(chip->cap_ctrl & FM801_START))
513 		return 0;
514 	spin_lock(&chip->reg_lock);
515 	ptr = chip->cap_pos + (chip->cap_count - 1) - inw(FM801_REG(chip, CAP_COUNT));
516 	if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_CAPTURE) {
517 		ptr += chip->cap_count;
518 		ptr %= chip->cap_size;
519 	}
520 	spin_unlock(&chip->reg_lock);
521 	return bytes_to_frames(substream->runtime, ptr);
522 }
523 
524 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
525 {
526 	struct fm801 *chip = dev_id;
527 	unsigned short status;
528 	unsigned int tmp;
529 
530 	status = inw(FM801_REG(chip, IRQ_STATUS));
531 	status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
532 	if (! status)
533 		return IRQ_NONE;
534 	/* ack first */
535 	outw(status, FM801_REG(chip, IRQ_STATUS));
536 	if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
537 		spin_lock(&chip->reg_lock);
538 		chip->ply_buf++;
539 		chip->ply_pos += chip->ply_count;
540 		chip->ply_pos %= chip->ply_size;
541 		tmp = chip->ply_pos + chip->ply_count;
542 		tmp %= chip->ply_size;
543 		outl(chip->ply_buffer + tmp,
544 				(chip->ply_buf & 1) ?
545 					FM801_REG(chip, PLY_BUF1) :
546 					FM801_REG(chip, PLY_BUF2));
547 		spin_unlock(&chip->reg_lock);
548 		snd_pcm_period_elapsed(chip->playback_substream);
549 	}
550 	if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
551 		spin_lock(&chip->reg_lock);
552 		chip->cap_buf++;
553 		chip->cap_pos += chip->cap_count;
554 		chip->cap_pos %= chip->cap_size;
555 		tmp = chip->cap_pos + chip->cap_count;
556 		tmp %= chip->cap_size;
557 		outl(chip->cap_buffer + tmp,
558 				(chip->cap_buf & 1) ?
559 					FM801_REG(chip, CAP_BUF1) :
560 					FM801_REG(chip, CAP_BUF2));
561 		spin_unlock(&chip->reg_lock);
562 		snd_pcm_period_elapsed(chip->capture_substream);
563 	}
564 	if (chip->rmidi && (status & FM801_IRQ_MPU))
565 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
566 	if (status & FM801_IRQ_VOLUME)
567 		;/* TODO */
568 
569 	return IRQ_HANDLED;
570 }
571 
572 static struct snd_pcm_hardware snd_fm801_playback =
573 {
574 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
575 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
576 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
577 				 SNDRV_PCM_INFO_MMAP_VALID),
578 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
579 	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
580 	.rate_min =		5500,
581 	.rate_max =		48000,
582 	.channels_min =		1,
583 	.channels_max =		2,
584 	.buffer_bytes_max =	(128*1024),
585 	.period_bytes_min =	64,
586 	.period_bytes_max =	(128*1024),
587 	.periods_min =		1,
588 	.periods_max =		1024,
589 	.fifo_size =		0,
590 };
591 
592 static struct snd_pcm_hardware snd_fm801_capture =
593 {
594 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
595 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
596 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
597 				 SNDRV_PCM_INFO_MMAP_VALID),
598 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
599 	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
600 	.rate_min =		5500,
601 	.rate_max =		48000,
602 	.channels_min =		1,
603 	.channels_max =		2,
604 	.buffer_bytes_max =	(128*1024),
605 	.period_bytes_min =	64,
606 	.period_bytes_max =	(128*1024),
607 	.periods_min =		1,
608 	.periods_max =		1024,
609 	.fifo_size =		0,
610 };
611 
612 static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
613 {
614 	struct fm801 *chip = snd_pcm_substream_chip(substream);
615 	struct snd_pcm_runtime *runtime = substream->runtime;
616 	int err;
617 
618 	chip->playback_substream = substream;
619 	runtime->hw = snd_fm801_playback;
620 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
621 				   &hw_constraints_rates);
622 	if (chip->multichannel) {
623 		runtime->hw.channels_max = 6;
624 		snd_pcm_hw_constraint_list(runtime, 0,
625 					   SNDRV_PCM_HW_PARAM_CHANNELS,
626 					   &hw_constraints_channels);
627 	}
628 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
629 		return err;
630 	return 0;
631 }
632 
633 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
634 {
635 	struct fm801 *chip = snd_pcm_substream_chip(substream);
636 	struct snd_pcm_runtime *runtime = substream->runtime;
637 	int err;
638 
639 	chip->capture_substream = substream;
640 	runtime->hw = snd_fm801_capture;
641 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
642 				   &hw_constraints_rates);
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_playback_close(struct snd_pcm_substream *substream)
649 {
650 	struct fm801 *chip = snd_pcm_substream_chip(substream);
651 
652 	chip->playback_substream = NULL;
653 	return 0;
654 }
655 
656 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
657 {
658 	struct fm801 *chip = snd_pcm_substream_chip(substream);
659 
660 	chip->capture_substream = NULL;
661 	return 0;
662 }
663 
664 static struct snd_pcm_ops snd_fm801_playback_ops = {
665 	.open =		snd_fm801_playback_open,
666 	.close =	snd_fm801_playback_close,
667 	.ioctl =	snd_pcm_lib_ioctl,
668 	.hw_params =	snd_fm801_hw_params,
669 	.hw_free =	snd_fm801_hw_free,
670 	.prepare =	snd_fm801_playback_prepare,
671 	.trigger =	snd_fm801_playback_trigger,
672 	.pointer =	snd_fm801_playback_pointer,
673 };
674 
675 static struct snd_pcm_ops snd_fm801_capture_ops = {
676 	.open =		snd_fm801_capture_open,
677 	.close =	snd_fm801_capture_close,
678 	.ioctl =	snd_pcm_lib_ioctl,
679 	.hw_params =	snd_fm801_hw_params,
680 	.hw_free =	snd_fm801_hw_free,
681 	.prepare =	snd_fm801_capture_prepare,
682 	.trigger =	snd_fm801_capture_trigger,
683 	.pointer =	snd_fm801_capture_pointer,
684 };
685 
686 static int __devinit snd_fm801_pcm(struct fm801 *chip, int device, struct snd_pcm ** rpcm)
687 {
688 	struct snd_pcm *pcm;
689 	int err;
690 
691 	if (rpcm)
692 		*rpcm = NULL;
693 	if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
694 		return err;
695 
696 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
697 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
698 
699 	pcm->private_data = chip;
700 	pcm->info_flags = 0;
701 	strcpy(pcm->name, "FM801");
702 	chip->pcm = pcm;
703 
704 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
705 					      snd_dma_pci_data(chip->pci),
706 					      chip->multichannel ? 128*1024 : 64*1024, 128*1024);
707 
708 	if (rpcm)
709 		*rpcm = pcm;
710 	return 0;
711 }
712 
713 /*
714  *  TEA5757 radio
715  */
716 
717 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
718 
719 /* GPIO to TEA575x maps */
720 struct snd_fm801_tea575x_gpio {
721 	u8 data, clk, wren, most;
722 	char *name;
723 };
724 
725 static struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
726 	{ .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
727 	{ .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
728 	{ .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
729 };
730 
731 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
732 {
733 	struct fm801 *chip = tea->private_data;
734 	unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
735 	struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
736 
737 	reg &= ~(FM801_GPIO_GP(gpio.data) |
738 		 FM801_GPIO_GP(gpio.clk) |
739 		 FM801_GPIO_GP(gpio.wren));
740 
741 	reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
742 	reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
743 	/* WRITE_ENABLE is inverted */
744 	reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
745 
746 	outw(reg, FM801_REG(chip, GPIO_CTRL));
747 }
748 
749 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
750 {
751 	struct fm801 *chip = tea->private_data;
752 	unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
753 	struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
754 
755 	return  (reg & FM801_GPIO_GP(gpio.data)) ? TEA575X_DATA : 0 |
756 		(reg & FM801_GPIO_GP(gpio.most)) ? TEA575X_MOST : 0;
757 }
758 
759 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
760 {
761 	struct fm801 *chip = tea->private_data;
762 	unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
763 	struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
764 
765 	/* use GPIO lines and set write enable bit */
766 	reg |= FM801_GPIO_GS(gpio.data) |
767 	       FM801_GPIO_GS(gpio.wren) |
768 	       FM801_GPIO_GS(gpio.clk) |
769 	       FM801_GPIO_GS(gpio.most);
770 	if (output) {
771 		/* all of lines are in the write direction */
772 		/* clear data and clock lines */
773 		reg &= ~(FM801_GPIO_GD(gpio.data) |
774 			 FM801_GPIO_GD(gpio.wren) |
775 			 FM801_GPIO_GD(gpio.clk) |
776 			 FM801_GPIO_GP(gpio.data) |
777 			 FM801_GPIO_GP(gpio.clk) |
778 			 FM801_GPIO_GP(gpio.wren));
779 	} else {
780 		/* use GPIO lines, set data direction to input */
781 		reg |= FM801_GPIO_GD(gpio.data) |
782 		       FM801_GPIO_GD(gpio.most) |
783 		       FM801_GPIO_GP(gpio.data) |
784 		       FM801_GPIO_GP(gpio.most) |
785 		       FM801_GPIO_GP(gpio.wren);
786 		/* all of lines are in the write direction, except data */
787 		/* clear data, write enable and clock lines */
788 		reg &= ~(FM801_GPIO_GD(gpio.wren) |
789 			 FM801_GPIO_GD(gpio.clk) |
790 			 FM801_GPIO_GP(gpio.clk));
791 	}
792 
793 	outw(reg, FM801_REG(chip, GPIO_CTRL));
794 }
795 
796 static struct snd_tea575x_ops snd_fm801_tea_ops = {
797 	.set_pins = snd_fm801_tea575x_set_pins,
798 	.get_pins = snd_fm801_tea575x_get_pins,
799 	.set_direction = snd_fm801_tea575x_set_direction,
800 };
801 #endif
802 
803 /*
804  *  Mixer routines
805  */
806 
807 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
808 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
809   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
810   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
811 
812 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
813 				 struct snd_ctl_elem_info *uinfo)
814 {
815 	int mask = (kcontrol->private_value >> 16) & 0xff;
816 
817 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
818 	uinfo->count = 1;
819 	uinfo->value.integer.min = 0;
820 	uinfo->value.integer.max = mask;
821 	return 0;
822 }
823 
824 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
825 				struct snd_ctl_elem_value *ucontrol)
826 {
827 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
828 	int reg = kcontrol->private_value & 0xff;
829 	int shift = (kcontrol->private_value >> 8) & 0xff;
830 	int mask = (kcontrol->private_value >> 16) & 0xff;
831 	int invert = (kcontrol->private_value >> 24) & 0xff;
832 
833 	ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift) & mask;
834 	if (invert)
835 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
836 	return 0;
837 }
838 
839 static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
840 				struct snd_ctl_elem_value *ucontrol)
841 {
842 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
843 	int reg = kcontrol->private_value & 0xff;
844 	int shift = (kcontrol->private_value >> 8) & 0xff;
845 	int mask = (kcontrol->private_value >> 16) & 0xff;
846 	int invert = (kcontrol->private_value >> 24) & 0xff;
847 	unsigned short val;
848 
849 	val = (ucontrol->value.integer.value[0] & mask);
850 	if (invert)
851 		val = mask - val;
852 	return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
853 }
854 
855 #define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
856 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
857   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
858   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
859 #define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
860 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
861   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
862   .name = xname, .info = snd_fm801_info_double, \
863   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
864   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
865   .tlv = { .p = (xtlv) } }
866 
867 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
868 				 struct snd_ctl_elem_info *uinfo)
869 {
870 	int mask = (kcontrol->private_value >> 16) & 0xff;
871 
872 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
873 	uinfo->count = 2;
874 	uinfo->value.integer.min = 0;
875 	uinfo->value.integer.max = mask;
876 	return 0;
877 }
878 
879 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
880 				struct snd_ctl_elem_value *ucontrol)
881 {
882 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
883         int reg = kcontrol->private_value & 0xff;
884 	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
885 	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
886 	int mask = (kcontrol->private_value >> 16) & 0xff;
887 	int invert = (kcontrol->private_value >> 24) & 0xff;
888 
889 	spin_lock_irq(&chip->reg_lock);
890 	ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift_left) & mask;
891 	ucontrol->value.integer.value[1] = (inw(chip->port + reg) >> shift_right) & mask;
892 	spin_unlock_irq(&chip->reg_lock);
893 	if (invert) {
894 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
895 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
896 	}
897 	return 0;
898 }
899 
900 static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
901 				struct snd_ctl_elem_value *ucontrol)
902 {
903 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
904 	int reg = kcontrol->private_value & 0xff;
905 	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
906 	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
907 	int mask = (kcontrol->private_value >> 16) & 0xff;
908 	int invert = (kcontrol->private_value >> 24) & 0xff;
909 	unsigned short val1, val2;
910 
911 	val1 = ucontrol->value.integer.value[0] & mask;
912 	val2 = ucontrol->value.integer.value[1] & mask;
913 	if (invert) {
914 		val1 = mask - val1;
915 		val2 = mask - val2;
916 	}
917 	return snd_fm801_update_bits(chip, reg,
918 				     (mask << shift_left) | (mask << shift_right),
919 				     (val1 << shift_left ) | (val2 << shift_right));
920 }
921 
922 static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
923 			      struct snd_ctl_elem_info *uinfo)
924 {
925 	static char *texts[5] = {
926 		"AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
927 	};
928 
929 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
930 	uinfo->count = 1;
931 	uinfo->value.enumerated.items = 5;
932 	if (uinfo->value.enumerated.item > 4)
933 		uinfo->value.enumerated.item = 4;
934 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
935 	return 0;
936 }
937 
938 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
939 			     struct snd_ctl_elem_value *ucontrol)
940 {
941 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
942         unsigned short val;
943 
944 	val = inw(FM801_REG(chip, REC_SRC)) & 7;
945 	if (val > 4)
946 		val = 4;
947         ucontrol->value.enumerated.item[0] = val;
948         return 0;
949 }
950 
951 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
952 			     struct snd_ctl_elem_value *ucontrol)
953 {
954 	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
955         unsigned short val;
956 
957         if ((val = ucontrol->value.enumerated.item[0]) > 4)
958                 return -EINVAL;
959 	return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
960 }
961 
962 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
963 
964 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
965 
966 static struct snd_kcontrol_new snd_fm801_controls[] __devinitdata = {
967 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
968 		 db_scale_dsp),
969 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
970 FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
971 		 db_scale_dsp),
972 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
973 FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
974 		 db_scale_dsp),
975 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
976 {
977 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
978 	.name = "Digital Capture Source",
979 	.info = snd_fm801_info_mux,
980 	.get = snd_fm801_get_mux,
981 	.put = snd_fm801_put_mux,
982 }
983 };
984 
985 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
986 
987 static struct snd_kcontrol_new snd_fm801_controls_multi[] __devinitdata = {
988 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
989 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
990 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
991 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
992 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
993 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
994 };
995 
996 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
997 {
998 	struct fm801 *chip = bus->private_data;
999 	chip->ac97_bus = NULL;
1000 }
1001 
1002 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1003 {
1004 	struct fm801 *chip = ac97->private_data;
1005 	if (ac97->num == 0) {
1006 		chip->ac97 = NULL;
1007 	} else {
1008 		chip->ac97_sec = NULL;
1009 	}
1010 }
1011 
1012 static int __devinit snd_fm801_mixer(struct fm801 *chip)
1013 {
1014 	struct snd_ac97_template ac97;
1015 	unsigned int i;
1016 	int err;
1017 	static struct snd_ac97_bus_ops ops = {
1018 		.write = snd_fm801_codec_write,
1019 		.read = snd_fm801_codec_read,
1020 	};
1021 
1022 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1023 		return err;
1024 	chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1025 
1026 	memset(&ac97, 0, sizeof(ac97));
1027 	ac97.private_data = chip;
1028 	ac97.private_free = snd_fm801_mixer_free_ac97;
1029 	if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1030 		return err;
1031 	if (chip->secondary) {
1032 		ac97.num = 1;
1033 		ac97.addr = chip->secondary_addr;
1034 		if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1035 			return err;
1036 	}
1037 	for (i = 0; i < FM801_CONTROLS; i++)
1038 		snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls[i], chip));
1039 	if (chip->multichannel) {
1040 		for (i = 0; i < FM801_CONTROLS_MULTI; i++)
1041 			snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1042 	}
1043 	return 0;
1044 }
1045 
1046 /*
1047  *  initialization routines
1048  */
1049 
1050 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1051 			  unsigned short reg, unsigned long waits)
1052 {
1053 	unsigned long timeout = jiffies + waits;
1054 
1055 	outw(FM801_AC97_READ | (codec_id << FM801_AC97_ADDR_SHIFT) | reg,
1056 	     FM801_REG(chip, AC97_CMD));
1057 	udelay(5);
1058 	do {
1059 		if ((inw(FM801_REG(chip, AC97_CMD)) & (FM801_AC97_VALID|FM801_AC97_BUSY))
1060 		    == FM801_AC97_VALID)
1061 			return 0;
1062 		schedule_timeout_uninterruptible(1);
1063 	} while (time_after(timeout, jiffies));
1064 	return -EIO;
1065 }
1066 
1067 static int snd_fm801_chip_init(struct fm801 *chip, int resume)
1068 {
1069 	unsigned short cmdw;
1070 
1071 	if (chip->tea575x_tuner & TUNER_ONLY)
1072 		goto __ac97_ok;
1073 
1074 	/* codec cold reset + AC'97 warm reset */
1075 	outw((1<<5) | (1<<6), FM801_REG(chip, CODEC_CTRL));
1076 	inw(FM801_REG(chip, CODEC_CTRL)); /* flush posting data */
1077 	udelay(100);
1078 	outw(0, FM801_REG(chip, CODEC_CTRL));
1079 
1080 	if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0)
1081 		if (!resume) {
1082 			snd_printk(KERN_INFO "Primary AC'97 codec not found, "
1083 					    "assume SF64-PCR (tuner-only)\n");
1084 			chip->tea575x_tuner = 3 | TUNER_ONLY;
1085 			goto __ac97_ok;
1086 		}
1087 
1088 	if (chip->multichannel) {
1089 		if (chip->secondary_addr) {
1090 			wait_for_codec(chip, chip->secondary_addr,
1091 				       AC97_VENDOR_ID1, msecs_to_jiffies(50));
1092 		} else {
1093 			/* my card has the secondary codec */
1094 			/* at address #3, so the loop is inverted */
1095 			int i;
1096 			for (i = 3; i > 0; i--) {
1097 				if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1098 						     msecs_to_jiffies(50))) {
1099 					cmdw = inw(FM801_REG(chip, AC97_DATA));
1100 					if (cmdw != 0xffff && cmdw != 0) {
1101 						chip->secondary = 1;
1102 						chip->secondary_addr = i;
1103 						break;
1104 					}
1105 				}
1106 			}
1107 		}
1108 
1109 		/* the recovery phase, it seems that probing for non-existing codec might */
1110 		/* cause timeout problems */
1111 		wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1112 	}
1113 
1114       __ac97_ok:
1115 
1116 	/* init volume */
1117 	outw(0x0808, FM801_REG(chip, PCM_VOL));
1118 	outw(0x9f1f, FM801_REG(chip, FM_VOL));
1119 	outw(0x8808, FM801_REG(chip, I2S_VOL));
1120 
1121 	/* I2S control - I2S mode */
1122 	outw(0x0003, FM801_REG(chip, I2S_MODE));
1123 
1124 	/* interrupt setup */
1125 	cmdw = inw(FM801_REG(chip, IRQ_MASK));
1126 	if (chip->irq < 0)
1127 		cmdw |= 0x00c3;		/* mask everything, no PCM nor MPU */
1128 	else
1129 		cmdw &= ~0x0083;	/* unmask MPU, PLAYBACK & CAPTURE */
1130 	outw(cmdw, FM801_REG(chip, IRQ_MASK));
1131 
1132 	/* interrupt clear */
1133 	outw(FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU, FM801_REG(chip, IRQ_STATUS));
1134 
1135 	return 0;
1136 }
1137 
1138 
1139 static int snd_fm801_free(struct fm801 *chip)
1140 {
1141 	unsigned short cmdw;
1142 
1143 	if (chip->irq < 0)
1144 		goto __end_hw;
1145 
1146 	/* interrupt setup - mask everything */
1147 	cmdw = inw(FM801_REG(chip, IRQ_MASK));
1148 	cmdw |= 0x00c3;
1149 	outw(cmdw, FM801_REG(chip, IRQ_MASK));
1150 
1151       __end_hw:
1152 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1153 	snd_tea575x_exit(&chip->tea);
1154 #endif
1155 	if (chip->irq >= 0)
1156 		free_irq(chip->irq, chip);
1157 	pci_release_regions(chip->pci);
1158 	pci_disable_device(chip->pci);
1159 
1160 	kfree(chip);
1161 	return 0;
1162 }
1163 
1164 static int snd_fm801_dev_free(struct snd_device *device)
1165 {
1166 	struct fm801 *chip = device->device_data;
1167 	return snd_fm801_free(chip);
1168 }
1169 
1170 static int __devinit snd_fm801_create(struct snd_card *card,
1171 				      struct pci_dev * pci,
1172 				      int tea575x_tuner,
1173 				      struct fm801 ** rchip)
1174 {
1175 	struct fm801 *chip;
1176 	int err;
1177 	static struct snd_device_ops ops = {
1178 		.dev_free =	snd_fm801_dev_free,
1179 	};
1180 
1181 	*rchip = NULL;
1182 	if ((err = pci_enable_device(pci)) < 0)
1183 		return err;
1184 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1185 	if (chip == NULL) {
1186 		pci_disable_device(pci);
1187 		return -ENOMEM;
1188 	}
1189 	spin_lock_init(&chip->reg_lock);
1190 	chip->card = card;
1191 	chip->pci = pci;
1192 	chip->irq = -1;
1193 	chip->tea575x_tuner = tea575x_tuner;
1194 	if ((err = pci_request_regions(pci, "FM801")) < 0) {
1195 		kfree(chip);
1196 		pci_disable_device(pci);
1197 		return err;
1198 	}
1199 	chip->port = pci_resource_start(pci, 0);
1200 	if ((tea575x_tuner & TUNER_ONLY) == 0) {
1201 		if (request_irq(pci->irq, snd_fm801_interrupt, IRQF_SHARED,
1202 				"FM801", chip)) {
1203 			snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->irq);
1204 			snd_fm801_free(chip);
1205 			return -EBUSY;
1206 		}
1207 		chip->irq = pci->irq;
1208 		pci_set_master(pci);
1209 	}
1210 
1211 	if (pci->revision >= 0xb1)	/* FM801-AU */
1212 		chip->multichannel = 1;
1213 
1214 	snd_fm801_chip_init(chip, 0);
1215 	/* init might set tuner access method */
1216 	tea575x_tuner = chip->tea575x_tuner;
1217 
1218 	if (chip->irq >= 0 && (tea575x_tuner & TUNER_ONLY)) {
1219 		pci_clear_master(pci);
1220 		free_irq(chip->irq, chip);
1221 		chip->irq = -1;
1222 	}
1223 
1224 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1225 		snd_fm801_free(chip);
1226 		return err;
1227 	}
1228 
1229 	snd_card_set_dev(card, &pci->dev);
1230 
1231 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1232 	chip->tea.private_data = chip;
1233 	chip->tea.ops = &snd_fm801_tea_ops;
1234 	sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1235 	if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1236 	    (tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1237 		if (snd_tea575x_init(&chip->tea)) {
1238 			snd_printk(KERN_ERR "TEA575x radio not found\n");
1239 			snd_fm801_free(chip);
1240 			return -ENODEV;
1241 		}
1242 	} else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1243 		/* autodetect tuner connection */
1244 		for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1245 			chip->tea575x_tuner = tea575x_tuner;
1246 			if (!snd_tea575x_init(&chip->tea)) {
1247 				snd_printk(KERN_INFO "detected TEA575x radio type %s\n",
1248 					snd_fm801_tea575x_gpios[tea575x_tuner - 1].name);
1249 				break;
1250 			}
1251 		}
1252 		if (tea575x_tuner == 4) {
1253 			snd_printk(KERN_ERR "TEA575x radio not found\n");
1254 			snd_fm801_free(chip);
1255 			return -ENODEV;
1256 		}
1257 	}
1258 	strlcpy(chip->tea.card, snd_fm801_tea575x_gpios[(tea575x_tuner & TUNER_TYPE_MASK) - 1].name, sizeof(chip->tea.card));
1259 #endif
1260 
1261 	*rchip = chip;
1262 	return 0;
1263 }
1264 
1265 static int __devinit snd_card_fm801_probe(struct pci_dev *pci,
1266 					  const struct pci_device_id *pci_id)
1267 {
1268 	static int dev;
1269 	struct snd_card *card;
1270 	struct fm801 *chip;
1271 	struct snd_opl3 *opl3;
1272 	int err;
1273 
1274         if (dev >= SNDRV_CARDS)
1275                 return -ENODEV;
1276 	if (!enable[dev]) {
1277 		dev++;
1278 		return -ENOENT;
1279 	}
1280 
1281 	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1282 	if (err < 0)
1283 		return err;
1284 	if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], &chip)) < 0) {
1285 		snd_card_free(card);
1286 		return err;
1287 	}
1288 	card->private_data = chip;
1289 
1290 	strcpy(card->driver, "FM801");
1291 	strcpy(card->shortname, "ForteMedia FM801-");
1292 	strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1293 	sprintf(card->longname, "%s at 0x%lx, irq %i",
1294 		card->shortname, chip->port, chip->irq);
1295 
1296 	if (chip->tea575x_tuner & TUNER_ONLY)
1297 		goto __fm801_tuner_only;
1298 
1299 	if ((err = snd_fm801_pcm(chip, 0, NULL)) < 0) {
1300 		snd_card_free(card);
1301 		return err;
1302 	}
1303 	if ((err = snd_fm801_mixer(chip)) < 0) {
1304 		snd_card_free(card);
1305 		return err;
1306 	}
1307 	if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1308 				       FM801_REG(chip, MPU401_DATA),
1309 				       MPU401_INFO_INTEGRATED,
1310 				       chip->irq, 0, &chip->rmidi)) < 0) {
1311 		snd_card_free(card);
1312 		return err;
1313 	}
1314 	if ((err = snd_opl3_create(card, FM801_REG(chip, OPL3_BANK0),
1315 				   FM801_REG(chip, OPL3_BANK1),
1316 				   OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1317 		snd_card_free(card);
1318 		return err;
1319 	}
1320 	if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1321 		snd_card_free(card);
1322 		return err;
1323 	}
1324 
1325       __fm801_tuner_only:
1326 	if ((err = snd_card_register(card)) < 0) {
1327 		snd_card_free(card);
1328 		return err;
1329 	}
1330 	pci_set_drvdata(pci, card);
1331 	dev++;
1332 	return 0;
1333 }
1334 
1335 static void __devexit snd_card_fm801_remove(struct pci_dev *pci)
1336 {
1337 	snd_card_free(pci_get_drvdata(pci));
1338 	pci_set_drvdata(pci, NULL);
1339 }
1340 
1341 #ifdef CONFIG_PM
1342 static unsigned char saved_regs[] = {
1343 	FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1344 	FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1345 	FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1346 	FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1347 };
1348 
1349 static int snd_fm801_suspend(struct pci_dev *pci, pm_message_t state)
1350 {
1351 	struct snd_card *card = pci_get_drvdata(pci);
1352 	struct fm801 *chip = card->private_data;
1353 	int i;
1354 
1355 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1356 	snd_pcm_suspend_all(chip->pcm);
1357 	snd_ac97_suspend(chip->ac97);
1358 	snd_ac97_suspend(chip->ac97_sec);
1359 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1360 		chip->saved_regs[i] = inw(chip->port + saved_regs[i]);
1361 	/* FIXME: tea575x suspend */
1362 
1363 	pci_disable_device(pci);
1364 	pci_save_state(pci);
1365 	pci_set_power_state(pci, pci_choose_state(pci, state));
1366 	return 0;
1367 }
1368 
1369 static int snd_fm801_resume(struct pci_dev *pci)
1370 {
1371 	struct snd_card *card = pci_get_drvdata(pci);
1372 	struct fm801 *chip = card->private_data;
1373 	int i;
1374 
1375 	pci_set_power_state(pci, PCI_D0);
1376 	pci_restore_state(pci);
1377 	if (pci_enable_device(pci) < 0) {
1378 		printk(KERN_ERR "fm801: pci_enable_device failed, "
1379 		       "disabling device\n");
1380 		snd_card_disconnect(card);
1381 		return -EIO;
1382 	}
1383 	pci_set_master(pci);
1384 
1385 	snd_fm801_chip_init(chip, 1);
1386 	snd_ac97_resume(chip->ac97);
1387 	snd_ac97_resume(chip->ac97_sec);
1388 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1389 		outw(chip->saved_regs[i], chip->port + saved_regs[i]);
1390 
1391 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1392 	return 0;
1393 }
1394 #endif
1395 
1396 static struct pci_driver driver = {
1397 	.name = "FM801",
1398 	.id_table = snd_fm801_ids,
1399 	.probe = snd_card_fm801_probe,
1400 	.remove = __devexit_p(snd_card_fm801_remove),
1401 #ifdef CONFIG_PM
1402 	.suspend = snd_fm801_suspend,
1403 	.resume = snd_fm801_resume,
1404 #endif
1405 };
1406 
1407 static int __init alsa_card_fm801_init(void)
1408 {
1409 	return pci_register_driver(&driver);
1410 }
1411 
1412 static void __exit alsa_card_fm801_exit(void)
1413 {
1414 	pci_unregister_driver(&driver);
1415 }
1416 
1417 module_init(alsa_card_fm801_init)
1418 module_exit(alsa_card_fm801_exit)
1419