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