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
43MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
44MODULE_DESCRIPTION("ForteMedia FM801");
45MODULE_LICENSE("GPL");
46MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
47		"{Genius,SoundMaker Live 5.1}}");
48
49static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
50static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
51static 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 */
60static int tea575x_tuner[SNDRV_CARDS];
61
62module_param_array(index, int, NULL, 0444);
63MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
64module_param_array(id, charp, NULL, 0444);
65MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
66module_param_array(enable, bool, NULL, 0444);
67MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
68module_param_array(tea575x_tuner, int, NULL, 0444);
69MODULE_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_DISABLED		(1<<3)
72#define TUNER_ONLY		(1<<4)
73#define TUNER_TYPE_MASK		(~TUNER_ONLY & 0xFFFF)
74
75/*
76 *  Direct registers
77 */
78
79#define FM801_REG(chip, reg)	(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
157 */
158
159struct fm801 {
160	int irq;
161
162	unsigned long port;	/* I/O port number */
163	unsigned int multichannel: 1,	/* multichannel support */
164		     secondary: 1;	/* secondary codec */
165	unsigned char secondary_addr;	/* address of the secondary codec */
166	unsigned int tea575x_tuner;	/* tuner access method & flags */
167
168	unsigned short ply_ctrl; /* playback control */
169	unsigned short cap_ctrl; /* capture control */
170
171	unsigned long ply_buffer;
172	unsigned int ply_buf;
173	unsigned int ply_count;
174	unsigned int ply_size;
175	unsigned int ply_pos;
176
177	unsigned long cap_buffer;
178	unsigned int cap_buf;
179	unsigned int cap_count;
180	unsigned int cap_size;
181	unsigned int cap_pos;
182
183	struct snd_ac97_bus *ac97_bus;
184	struct snd_ac97 *ac97;
185	struct snd_ac97 *ac97_sec;
186
187	struct pci_dev *pci;
188	struct snd_card *card;
189	struct snd_pcm *pcm;
190	struct snd_rawmidi *rmidi;
191	struct snd_pcm_substream *playback_substream;
192	struct snd_pcm_substream *capture_substream;
193	unsigned int p_dma_size;
194	unsigned int c_dma_size;
195
196	spinlock_t reg_lock;
197	struct snd_info_entry *proc_entry;
198
199#ifdef CONFIG_SND_FM801_TEA575X_BOOL
200	struct snd_tea575x tea;
201#endif
202
203#ifdef CONFIG_PM
204	u16 saved_regs[0x20];
205#endif
206};
207
208static DEFINE_PCI_DEVICE_TABLE(snd_fm801_ids) = {
209	{ 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
210	{ 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
211	{ 0, }
212};
213
214MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
215
216/*
217 *  common I/O routines
218 */
219
220static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
221				 unsigned short mask, unsigned short value)
222{
223	int change;
224	unsigned long flags;
225	unsigned short old, new;
226
227	spin_lock_irqsave(&chip->reg_lock, flags);
228	old = inw(chip->port + reg);
229	new = (old & ~mask) | value;
230	change = old != new;
231	if (change)
232		outw(new, chip->port + reg);
233	spin_unlock_irqrestore(&chip->reg_lock, flags);
234	return change;
235}
236
237static void snd_fm801_codec_write(struct snd_ac97 *ac97,
238				  unsigned short reg,
239				  unsigned short val)
240{
241	struct fm801 *chip = ac97->private_data;
242	int idx;
243
244	/*
245	 *  Wait until the codec interface is not ready..
246	 */
247	for (idx = 0; idx < 100; idx++) {
248		if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
249			goto ok1;
250		udelay(10);
251	}
252	snd_printk(KERN_ERR "AC'97 interface is busy (1)\n");
253	return;
254
255 ok1:
256	/* write data and address */
257	outw(val, FM801_REG(chip, AC97_DATA));
258	outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT), FM801_REG(chip, AC97_CMD));
259	/*
260	 *  Wait until the write command is not completed..
261         */
262	for (idx = 0; idx < 1000; idx++) {
263		if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
264			return;
265		udelay(10);
266	}
267	snd_printk(KERN_ERR "AC'97 interface #%d is busy (2)\n", ac97->num);
268}
269
270static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
271{
272	struct fm801 *chip = ac97->private_data;
273	int idx;
274
275	/*
276	 *  Wait until the codec interface is not ready..
277	 */
278	for (idx = 0; idx < 100; idx++) {
279		if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
280			goto ok1;
281		udelay(10);
282	}
283	snd_printk(KERN_ERR "AC'97 interface is busy (1)\n");
284	return 0;
285
286 ok1:
287	/* read command */
288	outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ,
289	     FM801_REG(chip, AC97_CMD));
290	for (idx = 0; idx < 100; idx++) {
291		if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
292			goto ok2;
293		udelay(10);
294	}
295	snd_printk(KERN_ERR "AC'97 interface #%d is busy (2)\n", ac97->num);
296	return 0;
297
298 ok2:
299	for (idx = 0; idx < 1000; idx++) {
300		if (inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_VALID)
301			goto ok3;
302		udelay(10);
303	}
304	snd_printk(KERN_ERR "AC'97 interface #%d is not valid (2)\n", ac97->num);
305	return 0;
306
307 ok3:
308	return inw(FM801_REG(chip, AC97_DATA));
309}
310
311static unsigned int rates[] = {
312  5500,  8000,  9600, 11025,
313  16000, 19200, 22050, 32000,
314  38400, 44100, 48000
315};
316
317static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
318	.count = ARRAY_SIZE(rates),
319	.list = rates,
320	.mask = 0,
321};
322
323static unsigned int channels[] = {
324  2, 4, 6
325};
326
327static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
328	.count = ARRAY_SIZE(channels),
329	.list = channels,
330	.mask = 0,
331};
332
333/*
334 *  Sample rate routines
335 */
336
337static unsigned short snd_fm801_rate_bits(unsigned int rate)
338{
339	unsigned int idx;
340
341	for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
342		if (rates[idx] == rate)
343			return idx;
344	snd_BUG();
345	return ARRAY_SIZE(rates) - 1;
346}
347
348/*
349 *  PCM part
350 */
351
352static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
353				      int cmd)
354{
355	struct fm801 *chip = snd_pcm_substream_chip(substream);
356
357	spin_lock(&chip->reg_lock);
358	switch (cmd) {
359	case SNDRV_PCM_TRIGGER_START:
360		chip->ply_ctrl &= ~(FM801_BUF1_LAST |
361				     FM801_BUF2_LAST |
362				     FM801_PAUSE);
363		chip->ply_ctrl |= FM801_START |
364				   FM801_IMMED_STOP;
365		break;
366	case SNDRV_PCM_TRIGGER_STOP:
367		chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
368		break;
369	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
370	case SNDRV_PCM_TRIGGER_SUSPEND:
371		chip->ply_ctrl |= FM801_PAUSE;
372		break;
373	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
374	case SNDRV_PCM_TRIGGER_RESUME:
375		chip->ply_ctrl &= ~FM801_PAUSE;
376		break;
377	default:
378		spin_unlock(&chip->reg_lock);
379		snd_BUG();
380		return -EINVAL;
381	}
382	outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
383	spin_unlock(&chip->reg_lock);
384	return 0;
385}
386
387static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
388				     int cmd)
389{
390	struct fm801 *chip = snd_pcm_substream_chip(substream);
391
392	spin_lock(&chip->reg_lock);
393	switch (cmd) {
394	case SNDRV_PCM_TRIGGER_START:
395		chip->cap_ctrl &= ~(FM801_BUF1_LAST |
396				     FM801_BUF2_LAST |
397				     FM801_PAUSE);
398		chip->cap_ctrl |= FM801_START |
399				   FM801_IMMED_STOP;
400		break;
401	case SNDRV_PCM_TRIGGER_STOP:
402		chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
403		break;
404	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
405	case SNDRV_PCM_TRIGGER_SUSPEND:
406		chip->cap_ctrl |= FM801_PAUSE;
407		break;
408	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
409	case SNDRV_PCM_TRIGGER_RESUME:
410		chip->cap_ctrl &= ~FM801_PAUSE;
411		break;
412	default:
413		spin_unlock(&chip->reg_lock);
414		snd_BUG();
415		return -EINVAL;
416	}
417	outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
418	spin_unlock(&chip->reg_lock);
419	return 0;
420}
421
422static int snd_fm801_hw_params(struct snd_pcm_substream *substream,
423			       struct snd_pcm_hw_params *hw_params)
424{
425	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
426}
427
428static int snd_fm801_hw_free(struct snd_pcm_substream *substream)
429{
430	return snd_pcm_lib_free_pages(substream);
431}
432
433static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
434{
435	struct fm801 *chip = snd_pcm_substream_chip(substream);
436	struct snd_pcm_runtime *runtime = substream->runtime;
437
438	chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
439	chip->ply_count = snd_pcm_lib_period_bytes(substream);
440	spin_lock_irq(&chip->reg_lock);
441	chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
442			     FM801_STEREO | FM801_RATE_MASK |
443			     FM801_CHANNELS_MASK);
444	if (snd_pcm_format_width(runtime->format) == 16)
445		chip->ply_ctrl |= FM801_16BIT;
446	if (runtime->channels > 1) {
447		chip->ply_ctrl |= FM801_STEREO;
448		if (runtime->channels == 4)
449			chip->ply_ctrl |= FM801_CHANNELS_4;
450		else if (runtime->channels == 6)
451			chip->ply_ctrl |= FM801_CHANNELS_6;
452	}
453	chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
454	chip->ply_buf = 0;
455	outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
456	outw(chip->ply_count - 1, FM801_REG(chip, PLY_COUNT));
457	chip->ply_buffer = runtime->dma_addr;
458	chip->ply_pos = 0;
459	outl(chip->ply_buffer, FM801_REG(chip, PLY_BUF1));
460	outl(chip->ply_buffer + (chip->ply_count % chip->ply_size), FM801_REG(chip, PLY_BUF2));
461	spin_unlock_irq(&chip->reg_lock);
462	return 0;
463}
464
465static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
466{
467	struct fm801 *chip = snd_pcm_substream_chip(substream);
468	struct snd_pcm_runtime *runtime = substream->runtime;
469
470	chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
471	chip->cap_count = snd_pcm_lib_period_bytes(substream);
472	spin_lock_irq(&chip->reg_lock);
473	chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
474			     FM801_STEREO | FM801_RATE_MASK);
475	if (snd_pcm_format_width(runtime->format) == 16)
476		chip->cap_ctrl |= FM801_16BIT;
477	if (runtime->channels > 1)
478		chip->cap_ctrl |= FM801_STEREO;
479	chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
480	chip->cap_buf = 0;
481	outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
482	outw(chip->cap_count - 1, FM801_REG(chip, CAP_COUNT));
483	chip->cap_buffer = runtime->dma_addr;
484	chip->cap_pos = 0;
485	outl(chip->cap_buffer, FM801_REG(chip, CAP_BUF1));
486	outl(chip->cap_buffer + (chip->cap_count % chip->cap_size), FM801_REG(chip, CAP_BUF2));
487	spin_unlock_irq(&chip->reg_lock);
488	return 0;
489}
490
491static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
492{
493	struct fm801 *chip = snd_pcm_substream_chip(substream);
494	size_t ptr;
495
496	if (!(chip->ply_ctrl & FM801_START))
497		return 0;
498	spin_lock(&chip->reg_lock);
499	ptr = chip->ply_pos + (chip->ply_count - 1) - inw(FM801_REG(chip, PLY_COUNT));
500	if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_PLAYBACK) {
501		ptr += chip->ply_count;
502		ptr %= chip->ply_size;
503	}
504	spin_unlock(&chip->reg_lock);
505	return bytes_to_frames(substream->runtime, ptr);
506}
507
508static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
509{
510	struct fm801 *chip = snd_pcm_substream_chip(substream);
511	size_t ptr;
512
513	if (!(chip->cap_ctrl & FM801_START))
514		return 0;
515	spin_lock(&chip->reg_lock);
516	ptr = chip->cap_pos + (chip->cap_count - 1) - inw(FM801_REG(chip, CAP_COUNT));
517	if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_CAPTURE) {
518		ptr += chip->cap_count;
519		ptr %= chip->cap_size;
520	}
521	spin_unlock(&chip->reg_lock);
522	return bytes_to_frames(substream->runtime, ptr);
523}
524
525static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
526{
527	struct fm801 *chip = dev_id;
528	unsigned short status;
529	unsigned int tmp;
530
531	status = inw(FM801_REG(chip, IRQ_STATUS));
532	status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
533	if (! status)
534		return IRQ_NONE;
535	/* ack first */
536	outw(status, FM801_REG(chip, IRQ_STATUS));
537	if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
538		spin_lock(&chip->reg_lock);
539		chip->ply_buf++;
540		chip->ply_pos += chip->ply_count;
541		chip->ply_pos %= chip->ply_size;
542		tmp = chip->ply_pos + chip->ply_count;
543		tmp %= chip->ply_size;
544		outl(chip->ply_buffer + tmp,
545				(chip->ply_buf & 1) ?
546					FM801_REG(chip, PLY_BUF1) :
547					FM801_REG(chip, PLY_BUF2));
548		spin_unlock(&chip->reg_lock);
549		snd_pcm_period_elapsed(chip->playback_substream);
550	}
551	if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
552		spin_lock(&chip->reg_lock);
553		chip->cap_buf++;
554		chip->cap_pos += chip->cap_count;
555		chip->cap_pos %= chip->cap_size;
556		tmp = chip->cap_pos + chip->cap_count;
557		tmp %= chip->cap_size;
558		outl(chip->cap_buffer + tmp,
559				(chip->cap_buf & 1) ?
560					FM801_REG(chip, CAP_BUF1) :
561					FM801_REG(chip, CAP_BUF2));
562		spin_unlock(&chip->reg_lock);
563		snd_pcm_period_elapsed(chip->capture_substream);
564	}
565	if (chip->rmidi && (status & FM801_IRQ_MPU))
566		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
567	if (status & FM801_IRQ_VOLUME)
568		;/* TODO */
569
570	return IRQ_HANDLED;
571}
572
573static struct snd_pcm_hardware snd_fm801_playback =
574{
575	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
576				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
577				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
578				 SNDRV_PCM_INFO_MMAP_VALID),
579	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
580	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
581	.rate_min =		5500,
582	.rate_max =		48000,
583	.channels_min =		1,
584	.channels_max =		2,
585	.buffer_bytes_max =	(128*1024),
586	.period_bytes_min =	64,
587	.period_bytes_max =	(128*1024),
588	.periods_min =		1,
589	.periods_max =		1024,
590	.fifo_size =		0,
591};
592
593static struct snd_pcm_hardware snd_fm801_capture =
594{
595	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
596				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
597				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
598				 SNDRV_PCM_INFO_MMAP_VALID),
599	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
600	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
601	.rate_min =		5500,
602	.rate_max =		48000,
603	.channels_min =		1,
604	.channels_max =		2,
605	.buffer_bytes_max =	(128*1024),
606	.period_bytes_min =	64,
607	.period_bytes_max =	(128*1024),
608	.periods_min =		1,
609	.periods_max =		1024,
610	.fifo_size =		0,
611};
612
613static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
614{
615	struct fm801 *chip = snd_pcm_substream_chip(substream);
616	struct snd_pcm_runtime *runtime = substream->runtime;
617	int err;
618
619	chip->playback_substream = substream;
620	runtime->hw = snd_fm801_playback;
621	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
622				   &hw_constraints_rates);
623	if (chip->multichannel) {
624		runtime->hw.channels_max = 6;
625		snd_pcm_hw_constraint_list(runtime, 0,
626					   SNDRV_PCM_HW_PARAM_CHANNELS,
627					   &hw_constraints_channels);
628	}
629	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
630		return err;
631	return 0;
632}
633
634static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
635{
636	struct fm801 *chip = snd_pcm_substream_chip(substream);
637	struct snd_pcm_runtime *runtime = substream->runtime;
638	int err;
639
640	chip->capture_substream = substream;
641	runtime->hw = snd_fm801_capture;
642	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
643				   &hw_constraints_rates);
644	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
645		return err;
646	return 0;
647}
648
649static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
650{
651	struct fm801 *chip = snd_pcm_substream_chip(substream);
652
653	chip->playback_substream = NULL;
654	return 0;
655}
656
657static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
658{
659	struct fm801 *chip = snd_pcm_substream_chip(substream);
660
661	chip->capture_substream = NULL;
662	return 0;
663}
664
665static struct snd_pcm_ops snd_fm801_playback_ops = {
666	.open =		snd_fm801_playback_open,
667	.close =	snd_fm801_playback_close,
668	.ioctl =	snd_pcm_lib_ioctl,
669	.hw_params =	snd_fm801_hw_params,
670	.hw_free =	snd_fm801_hw_free,
671	.prepare =	snd_fm801_playback_prepare,
672	.trigger =	snd_fm801_playback_trigger,
673	.pointer =	snd_fm801_playback_pointer,
674};
675
676static struct snd_pcm_ops snd_fm801_capture_ops = {
677	.open =		snd_fm801_capture_open,
678	.close =	snd_fm801_capture_close,
679	.ioctl =	snd_pcm_lib_ioctl,
680	.hw_params =	snd_fm801_hw_params,
681	.hw_free =	snd_fm801_hw_free,
682	.prepare =	snd_fm801_capture_prepare,
683	.trigger =	snd_fm801_capture_trigger,
684	.pointer =	snd_fm801_capture_pointer,
685};
686
687static int __devinit snd_fm801_pcm(struct fm801 *chip, int device, struct snd_pcm ** rpcm)
688{
689	struct snd_pcm *pcm;
690	int err;
691
692	if (rpcm)
693		*rpcm = NULL;
694	if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
695		return err;
696
697	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
698	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
699
700	pcm->private_data = chip;
701	pcm->info_flags = 0;
702	strcpy(pcm->name, "FM801");
703	chip->pcm = pcm;
704
705	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
706					      snd_dma_pci_data(chip->pci),
707					      chip->multichannel ? 128*1024 : 64*1024, 128*1024);
708
709	if (rpcm)
710		*rpcm = pcm;
711	return 0;
712}
713
714/*
715 *  TEA5757 radio
716 */
717
718#ifdef CONFIG_SND_FM801_TEA575X_BOOL
719
720/* GPIO to TEA575x maps */
721struct snd_fm801_tea575x_gpio {
722	u8 data, clk, wren, most;
723	char *name;
724};
725
726static struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
727	{ .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
728	{ .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
729	{ .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
730};
731
732static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
733{
734	struct fm801 *chip = tea->private_data;
735	unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
736	struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
737
738	reg &= ~(FM801_GPIO_GP(gpio.data) |
739		 FM801_GPIO_GP(gpio.clk) |
740		 FM801_GPIO_GP(gpio.wren));
741
742	reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
743	reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
744	/* WRITE_ENABLE is inverted */
745	reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
746
747	outw(reg, FM801_REG(chip, GPIO_CTRL));
748}
749
750static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
751{
752	struct fm801 *chip = tea->private_data;
753	unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
754	struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
755
756	return  (reg & FM801_GPIO_GP(gpio.data)) ? TEA575X_DATA : 0 |
757		(reg & FM801_GPIO_GP(gpio.most)) ? TEA575X_MOST : 0;
758}
759
760static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
761{
762	struct fm801 *chip = tea->private_data;
763	unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
764	struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
765
766	/* use GPIO lines and set write enable bit */
767	reg |= FM801_GPIO_GS(gpio.data) |
768	       FM801_GPIO_GS(gpio.wren) |
769	       FM801_GPIO_GS(gpio.clk) |
770	       FM801_GPIO_GS(gpio.most);
771	if (output) {
772		/* all of lines are in the write direction */
773		/* clear data and clock lines */
774		reg &= ~(FM801_GPIO_GD(gpio.data) |
775			 FM801_GPIO_GD(gpio.wren) |
776			 FM801_GPIO_GD(gpio.clk) |
777			 FM801_GPIO_GP(gpio.data) |
778			 FM801_GPIO_GP(gpio.clk) |
779			 FM801_GPIO_GP(gpio.wren));
780	} else {
781		/* use GPIO lines, set data direction to input */
782		reg |= FM801_GPIO_GD(gpio.data) |
783		       FM801_GPIO_GD(gpio.most) |
784		       FM801_GPIO_GP(gpio.data) |
785		       FM801_GPIO_GP(gpio.most) |
786		       FM801_GPIO_GP(gpio.wren);
787		/* all of lines are in the write direction, except data */
788		/* clear data, write enable and clock lines */
789		reg &= ~(FM801_GPIO_GD(gpio.wren) |
790			 FM801_GPIO_GD(gpio.clk) |
791			 FM801_GPIO_GP(gpio.clk));
792	}
793
794	outw(reg, FM801_REG(chip, GPIO_CTRL));
795}
796
797static struct snd_tea575x_ops snd_fm801_tea_ops = {
798	.set_pins = snd_fm801_tea575x_set_pins,
799	.get_pins = snd_fm801_tea575x_get_pins,
800	.set_direction = snd_fm801_tea575x_set_direction,
801};
802#endif
803
804/*
805 *  Mixer routines
806 */
807
808#define FM801_SINGLE(xname, reg, shift, mask, invert) \
809{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
810  .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
811  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
812
813static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
814				 struct snd_ctl_elem_info *uinfo)
815{
816	int mask = (kcontrol->private_value >> 16) & 0xff;
817
818	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
819	uinfo->count = 1;
820	uinfo->value.integer.min = 0;
821	uinfo->value.integer.max = mask;
822	return 0;
823}
824
825static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
826				struct snd_ctl_elem_value *ucontrol)
827{
828	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
829	int reg = kcontrol->private_value & 0xff;
830	int shift = (kcontrol->private_value >> 8) & 0xff;
831	int mask = (kcontrol->private_value >> 16) & 0xff;
832	int invert = (kcontrol->private_value >> 24) & 0xff;
833
834	ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift) & mask;
835	if (invert)
836		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
837	return 0;
838}
839
840static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
841				struct snd_ctl_elem_value *ucontrol)
842{
843	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
844	int reg = kcontrol->private_value & 0xff;
845	int shift = (kcontrol->private_value >> 8) & 0xff;
846	int mask = (kcontrol->private_value >> 16) & 0xff;
847	int invert = (kcontrol->private_value >> 24) & 0xff;
848	unsigned short val;
849
850	val = (ucontrol->value.integer.value[0] & mask);
851	if (invert)
852		val = mask - val;
853	return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
854}
855
856#define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
857{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
858  .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
859  .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
860#define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
861{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
862  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
863  .name = xname, .info = snd_fm801_info_double, \
864  .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
865  .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
866  .tlv = { .p = (xtlv) } }
867
868static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
869				 struct snd_ctl_elem_info *uinfo)
870{
871	int mask = (kcontrol->private_value >> 16) & 0xff;
872
873	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
874	uinfo->count = 2;
875	uinfo->value.integer.min = 0;
876	uinfo->value.integer.max = mask;
877	return 0;
878}
879
880static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
881				struct snd_ctl_elem_value *ucontrol)
882{
883	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
884        int reg = kcontrol->private_value & 0xff;
885	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
886	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
887	int mask = (kcontrol->private_value >> 16) & 0xff;
888	int invert = (kcontrol->private_value >> 24) & 0xff;
889
890	spin_lock_irq(&chip->reg_lock);
891	ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift_left) & mask;
892	ucontrol->value.integer.value[1] = (inw(chip->port + reg) >> shift_right) & mask;
893	spin_unlock_irq(&chip->reg_lock);
894	if (invert) {
895		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
896		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
897	}
898	return 0;
899}
900
901static int snd_fm801_put_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	unsigned short val1, val2;
911
912	val1 = ucontrol->value.integer.value[0] & mask;
913	val2 = ucontrol->value.integer.value[1] & mask;
914	if (invert) {
915		val1 = mask - val1;
916		val2 = mask - val2;
917	}
918	return snd_fm801_update_bits(chip, reg,
919				     (mask << shift_left) | (mask << shift_right),
920				     (val1 << shift_left ) | (val2 << shift_right));
921}
922
923static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
924			      struct snd_ctl_elem_info *uinfo)
925{
926	static char *texts[5] = {
927		"AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
928	};
929
930	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
931	uinfo->count = 1;
932	uinfo->value.enumerated.items = 5;
933	if (uinfo->value.enumerated.item > 4)
934		uinfo->value.enumerated.item = 4;
935	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
936	return 0;
937}
938
939static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
940			     struct snd_ctl_elem_value *ucontrol)
941{
942	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
943        unsigned short val;
944
945	val = inw(FM801_REG(chip, REC_SRC)) & 7;
946	if (val > 4)
947		val = 4;
948        ucontrol->value.enumerated.item[0] = val;
949        return 0;
950}
951
952static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
953			     struct snd_ctl_elem_value *ucontrol)
954{
955	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
956        unsigned short val;
957
958        if ((val = ucontrol->value.enumerated.item[0]) > 4)
959                return -EINVAL;
960	return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
961}
962
963static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
964
965#define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
966
967static struct snd_kcontrol_new snd_fm801_controls[] __devinitdata = {
968FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
969		 db_scale_dsp),
970FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
971FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
972		 db_scale_dsp),
973FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
974FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
975		 db_scale_dsp),
976FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
977{
978	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
979	.name = "Digital Capture Source",
980	.info = snd_fm801_info_mux,
981	.get = snd_fm801_get_mux,
982	.put = snd_fm801_put_mux,
983}
984};
985
986#define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
987
988static struct snd_kcontrol_new snd_fm801_controls_multi[] __devinitdata = {
989FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
990FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
991FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
992FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
993FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
994FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
995};
996
997static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
998{
999	struct fm801 *chip = bus->private_data;
1000	chip->ac97_bus = NULL;
1001}
1002
1003static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1004{
1005	struct fm801 *chip = ac97->private_data;
1006	if (ac97->num == 0) {
1007		chip->ac97 = NULL;
1008	} else {
1009		chip->ac97_sec = NULL;
1010	}
1011}
1012
1013static int __devinit snd_fm801_mixer(struct fm801 *chip)
1014{
1015	struct snd_ac97_template ac97;
1016	unsigned int i;
1017	int err;
1018	static struct snd_ac97_bus_ops ops = {
1019		.write = snd_fm801_codec_write,
1020		.read = snd_fm801_codec_read,
1021	};
1022
1023	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1024		return err;
1025	chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1026
1027	memset(&ac97, 0, sizeof(ac97));
1028	ac97.private_data = chip;
1029	ac97.private_free = snd_fm801_mixer_free_ac97;
1030	if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1031		return err;
1032	if (chip->secondary) {
1033		ac97.num = 1;
1034		ac97.addr = chip->secondary_addr;
1035		if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1036			return err;
1037	}
1038	for (i = 0; i < FM801_CONTROLS; i++)
1039		snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls[i], chip));
1040	if (chip->multichannel) {
1041		for (i = 0; i < FM801_CONTROLS_MULTI; i++)
1042			snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1043	}
1044	return 0;
1045}
1046
1047/*
1048 *  initialization routines
1049 */
1050
1051static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1052			  unsigned short reg, unsigned long waits)
1053{
1054	unsigned long timeout = jiffies + waits;
1055
1056	outw(FM801_AC97_READ | (codec_id << FM801_AC97_ADDR_SHIFT) | reg,
1057	     FM801_REG(chip, AC97_CMD));
1058	udelay(5);
1059	do {
1060		if ((inw(FM801_REG(chip, AC97_CMD)) & (FM801_AC97_VALID|FM801_AC97_BUSY))
1061		    == FM801_AC97_VALID)
1062			return 0;
1063		schedule_timeout_uninterruptible(1);
1064	} while (time_after(timeout, jiffies));
1065	return -EIO;
1066}
1067
1068static int snd_fm801_chip_init(struct fm801 *chip, int resume)
1069{
1070	unsigned short cmdw;
1071
1072	if (chip->tea575x_tuner & TUNER_ONLY)
1073		goto __ac97_ok;
1074
1075	/* codec cold reset + AC'97 warm reset */
1076	outw((1<<5) | (1<<6), FM801_REG(chip, CODEC_CTRL));
1077	inw(FM801_REG(chip, CODEC_CTRL)); /* flush posting data */
1078	udelay(100);
1079	outw(0, FM801_REG(chip, CODEC_CTRL));
1080
1081	if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0)
1082		if (!resume) {
1083			snd_printk(KERN_INFO "Primary AC'97 codec not found, "
1084					    "assume SF64-PCR (tuner-only)\n");
1085			chip->tea575x_tuner = 3 | TUNER_ONLY;
1086			goto __ac97_ok;
1087		}
1088
1089	if (chip->multichannel) {
1090		if (chip->secondary_addr) {
1091			wait_for_codec(chip, chip->secondary_addr,
1092				       AC97_VENDOR_ID1, msecs_to_jiffies(50));
1093		} else {
1094			/* my card has the secondary codec */
1095			/* at address #3, so the loop is inverted */
1096			int i;
1097			for (i = 3; i > 0; i--) {
1098				if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1099						     msecs_to_jiffies(50))) {
1100					cmdw = inw(FM801_REG(chip, AC97_DATA));
1101					if (cmdw != 0xffff && cmdw != 0) {
1102						chip->secondary = 1;
1103						chip->secondary_addr = i;
1104						break;
1105					}
1106				}
1107			}
1108		}
1109
1110		/* the recovery phase, it seems that probing for non-existing codec might */
1111		/* cause timeout problems */
1112		wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1113	}
1114
1115      __ac97_ok:
1116
1117	/* init volume */
1118	outw(0x0808, FM801_REG(chip, PCM_VOL));
1119	outw(0x9f1f, FM801_REG(chip, FM_VOL));
1120	outw(0x8808, FM801_REG(chip, I2S_VOL));
1121
1122	/* I2S control - I2S mode */
1123	outw(0x0003, FM801_REG(chip, I2S_MODE));
1124
1125	/* interrupt setup */
1126	cmdw = inw(FM801_REG(chip, IRQ_MASK));
1127	if (chip->irq < 0)
1128		cmdw |= 0x00c3;		/* mask everything, no PCM nor MPU */
1129	else
1130		cmdw &= ~0x0083;	/* unmask MPU, PLAYBACK & CAPTURE */
1131	outw(cmdw, FM801_REG(chip, IRQ_MASK));
1132
1133	/* interrupt clear */
1134	outw(FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU, FM801_REG(chip, IRQ_STATUS));
1135
1136	return 0;
1137}
1138
1139
1140static int snd_fm801_free(struct fm801 *chip)
1141{
1142	unsigned short cmdw;
1143
1144	if (chip->irq < 0)
1145		goto __end_hw;
1146
1147	/* interrupt setup - mask everything */
1148	cmdw = inw(FM801_REG(chip, IRQ_MASK));
1149	cmdw |= 0x00c3;
1150	outw(cmdw, FM801_REG(chip, IRQ_MASK));
1151
1152      __end_hw:
1153#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1154	if (!(chip->tea575x_tuner & TUNER_DISABLED))
1155		snd_tea575x_exit(&chip->tea);
1156#endif
1157	if (chip->irq >= 0)
1158		free_irq(chip->irq, chip);
1159	pci_release_regions(chip->pci);
1160	pci_disable_device(chip->pci);
1161
1162	kfree(chip);
1163	return 0;
1164}
1165
1166static int snd_fm801_dev_free(struct snd_device *device)
1167{
1168	struct fm801 *chip = device->device_data;
1169	return snd_fm801_free(chip);
1170}
1171
1172static int __devinit snd_fm801_create(struct snd_card *card,
1173				      struct pci_dev * pci,
1174				      int tea575x_tuner,
1175				      struct fm801 ** rchip)
1176{
1177	struct fm801 *chip;
1178	int err;
1179	static struct snd_device_ops ops = {
1180		.dev_free =	snd_fm801_dev_free,
1181	};
1182
1183	*rchip = NULL;
1184	if ((err = pci_enable_device(pci)) < 0)
1185		return err;
1186	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1187	if (chip == NULL) {
1188		pci_disable_device(pci);
1189		return -ENOMEM;
1190	}
1191	spin_lock_init(&chip->reg_lock);
1192	chip->card = card;
1193	chip->pci = pci;
1194	chip->irq = -1;
1195	chip->tea575x_tuner = tea575x_tuner;
1196	if ((err = pci_request_regions(pci, "FM801")) < 0) {
1197		kfree(chip);
1198		pci_disable_device(pci);
1199		return err;
1200	}
1201	chip->port = pci_resource_start(pci, 0);
1202	if ((tea575x_tuner & TUNER_ONLY) == 0) {
1203		if (request_irq(pci->irq, snd_fm801_interrupt, IRQF_SHARED,
1204				"FM801", chip)) {
1205			snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->irq);
1206			snd_fm801_free(chip);
1207			return -EBUSY;
1208		}
1209		chip->irq = pci->irq;
1210		pci_set_master(pci);
1211	}
1212
1213	if (pci->revision >= 0xb1)	/* FM801-AU */
1214		chip->multichannel = 1;
1215
1216	snd_fm801_chip_init(chip, 0);
1217	/* init might set tuner access method */
1218	tea575x_tuner = chip->tea575x_tuner;
1219
1220	if (chip->irq >= 0 && (tea575x_tuner & TUNER_ONLY)) {
1221		pci_clear_master(pci);
1222		free_irq(chip->irq, chip);
1223		chip->irq = -1;
1224	}
1225
1226	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1227		snd_fm801_free(chip);
1228		return err;
1229	}
1230
1231	snd_card_set_dev(card, &pci->dev);
1232
1233#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1234	chip->tea.private_data = chip;
1235	chip->tea.ops = &snd_fm801_tea_ops;
1236	sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1237	if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1238	    (tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1239		if (snd_tea575x_init(&chip->tea)) {
1240			snd_printk(KERN_ERR "TEA575x radio not found\n");
1241			return -ENODEV;
1242		}
1243	} else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1244		/* autodetect tuner connection */
1245		for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1246			chip->tea575x_tuner = tea575x_tuner;
1247			if (!snd_tea575x_init(&chip->tea)) {
1248				snd_printk(KERN_INFO "detected TEA575x radio type %s\n",
1249					snd_fm801_tea575x_gpios[tea575x_tuner - 1].name);
1250				break;
1251			}
1252		}
1253		if (tea575x_tuner == 4) {
1254			snd_printk(KERN_ERR "TEA575x radio not found\n");
1255			chip->tea575x_tuner = TUNER_DISABLED;
1256		}
1257	}
1258	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1259		strlcpy(chip->tea.card,
1260			snd_fm801_tea575x_gpios[(tea575x_tuner &
1261						 TUNER_TYPE_MASK) - 1].name,
1262			sizeof(chip->tea.card));
1263	}
1264#endif
1265
1266	*rchip = chip;
1267	return 0;
1268}
1269
1270static int __devinit snd_card_fm801_probe(struct pci_dev *pci,
1271					  const struct pci_device_id *pci_id)
1272{
1273	static int dev;
1274	struct snd_card *card;
1275	struct fm801 *chip;
1276	struct snd_opl3 *opl3;
1277	int err;
1278
1279        if (dev >= SNDRV_CARDS)
1280                return -ENODEV;
1281	if (!enable[dev]) {
1282		dev++;
1283		return -ENOENT;
1284	}
1285
1286	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1287	if (err < 0)
1288		return err;
1289	if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], &chip)) < 0) {
1290		snd_card_free(card);
1291		return err;
1292	}
1293	card->private_data = chip;
1294
1295	strcpy(card->driver, "FM801");
1296	strcpy(card->shortname, "ForteMedia FM801-");
1297	strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1298	sprintf(card->longname, "%s at 0x%lx, irq %i",
1299		card->shortname, chip->port, chip->irq);
1300
1301	if (chip->tea575x_tuner & TUNER_ONLY)
1302		goto __fm801_tuner_only;
1303
1304	if ((err = snd_fm801_pcm(chip, 0, NULL)) < 0) {
1305		snd_card_free(card);
1306		return err;
1307	}
1308	if ((err = snd_fm801_mixer(chip)) < 0) {
1309		snd_card_free(card);
1310		return err;
1311	}
1312	if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1313				       FM801_REG(chip, MPU401_DATA),
1314				       MPU401_INFO_INTEGRATED,
1315				       chip->irq, 0, &chip->rmidi)) < 0) {
1316		snd_card_free(card);
1317		return err;
1318	}
1319	if ((err = snd_opl3_create(card, FM801_REG(chip, OPL3_BANK0),
1320				   FM801_REG(chip, OPL3_BANK1),
1321				   OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1322		snd_card_free(card);
1323		return err;
1324	}
1325	if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1326		snd_card_free(card);
1327		return err;
1328	}
1329
1330      __fm801_tuner_only:
1331	if ((err = snd_card_register(card)) < 0) {
1332		snd_card_free(card);
1333		return err;
1334	}
1335	pci_set_drvdata(pci, card);
1336	dev++;
1337	return 0;
1338}
1339
1340static void __devexit snd_card_fm801_remove(struct pci_dev *pci)
1341{
1342	snd_card_free(pci_get_drvdata(pci));
1343	pci_set_drvdata(pci, NULL);
1344}
1345
1346#ifdef CONFIG_PM
1347static unsigned char saved_regs[] = {
1348	FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1349	FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1350	FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1351	FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1352};
1353
1354static int snd_fm801_suspend(struct pci_dev *pci, pm_message_t state)
1355{
1356	struct snd_card *card = pci_get_drvdata(pci);
1357	struct fm801 *chip = card->private_data;
1358	int i;
1359
1360	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1361	snd_pcm_suspend_all(chip->pcm);
1362	snd_ac97_suspend(chip->ac97);
1363	snd_ac97_suspend(chip->ac97_sec);
1364	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1365		chip->saved_regs[i] = inw(chip->port + saved_regs[i]);
1366	/* FIXME: tea575x suspend */
1367
1368	pci_disable_device(pci);
1369	pci_save_state(pci);
1370	pci_set_power_state(pci, pci_choose_state(pci, state));
1371	return 0;
1372}
1373
1374static int snd_fm801_resume(struct pci_dev *pci)
1375{
1376	struct snd_card *card = pci_get_drvdata(pci);
1377	struct fm801 *chip = card->private_data;
1378	int i;
1379
1380	pci_set_power_state(pci, PCI_D0);
1381	pci_restore_state(pci);
1382	if (pci_enable_device(pci) < 0) {
1383		printk(KERN_ERR "fm801: pci_enable_device failed, "
1384		       "disabling device\n");
1385		snd_card_disconnect(card);
1386		return -EIO;
1387	}
1388	pci_set_master(pci);
1389
1390	snd_fm801_chip_init(chip, 1);
1391	snd_ac97_resume(chip->ac97);
1392	snd_ac97_resume(chip->ac97_sec);
1393	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1394		outw(chip->saved_regs[i], chip->port + saved_regs[i]);
1395
1396	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1397	return 0;
1398}
1399#endif
1400
1401static struct pci_driver driver = {
1402	.name = "FM801",
1403	.id_table = snd_fm801_ids,
1404	.probe = snd_card_fm801_probe,
1405	.remove = __devexit_p(snd_card_fm801_remove),
1406#ifdef CONFIG_PM
1407	.suspend = snd_fm801_suspend,
1408	.resume = snd_fm801_resume,
1409#endif
1410};
1411
1412static int __init alsa_card_fm801_init(void)
1413{
1414	return pci_register_driver(&driver);
1415}
1416
1417static void __exit alsa_card_fm801_exit(void)
1418{
1419	pci_unregister_driver(&driver);
1420}
1421
1422module_init(alsa_card_fm801_init)
1423module_exit(alsa_card_fm801_exit)
1424