1	// SPDX-License-Identifier: GPL-2.0-or-later
2	/*
3	* The driver for the ForteMedia FM801 based soundcards
4	* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
5	*/
6
7	#include <linux/delay.h>
8	#include <linux/init.h>
9	#include <linux/interrupt.h>
10	#include <linux/io.h>
11	#include <linux/pci.h>
12	#include <linux/slab.h>
13	#include <linux/module.h>
14	#include <sound/core.h>
15	#include <sound/pcm.h>
16	#include <sound/tlv.h>
17	#include <sound/ac97_codec.h>
18	#include <sound/mpu401.h>
19	#include <sound/opl3.h>
20	#include <sound/initval.h>
21
22	#ifdef CONFIG_SND_FM801_TEA575X_BOOL
23	#include <media/drv-intf/tea575x.h>
24	#endif
25
26	MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
27	MODULE_DESCRIPTION("ForteMedia FM801");
28	MODULE_LICENSE("GPL");
29
30	static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
31	static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
32	static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
33	/*
34	* Enable TEA575x tuner
35	* 1 = MediaForte 256-PCS
36	* 2 = MediaForte 256-PCP
37	* 3 = MediaForte 64-PCR
38	* 16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
39	* High 16-bits are video (radio) device number + 1
40	*/
41	static int tea575x_tuner[SNDRV_CARDS];
42	static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
43
44	module_param_array(index, int, NULL, 0444);
45	MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
46	module_param_array(id, charp, NULL, 0444);
47	MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
48	module_param_array(enable, bool, NULL, 0444);
49	MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
50	module_param_array(tea575x_tuner, int, NULL, 0444);
51	MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only).");
52	module_param_array(radio_nr, int, NULL, 0444);
53	MODULE_PARM_DESC(radio_nr, "Radio device numbers");
54
55
56	#define TUNER_DISABLED (1<<3)
57	#define TUNER_ONLY (1<<4)
58	#define TUNER_TYPE_MASK (~TUNER_ONLY & 0xFFFF)
59
60	/*
61	* Direct registers
62	*/
63
64	#define fm801_writew(chip,reg,value) outw((value), chip->port + FM801_##reg)
65	#define fm801_readw(chip,reg) inw(chip->port + FM801_##reg)
66
67	#define fm801_writel(chip,reg,value) outl((value), chip->port + FM801_##reg)
68
69	#define FM801_PCM_VOL 0x00 /* PCM Output Volume */
70	#define FM801_FM_VOL 0x02 /* FM Output Volume */
71	#define FM801_I2S_VOL 0x04 /* I2S Volume */
72	#define FM801_REC_SRC 0x06 /* Record Source */
73	#define FM801_PLY_CTRL 0x08 /* Playback Control */
74	#define FM801_PLY_COUNT 0x0a /* Playback Count */
75	#define FM801_PLY_BUF1 0x0c /* Playback Bufer I */
76	#define FM801_PLY_BUF2 0x10 /* Playback Buffer II */
77	#define FM801_CAP_CTRL 0x14 /* Capture Control */
78	#define FM801_CAP_COUNT 0x16 /* Capture Count */
79	#define FM801_CAP_BUF1 0x18 /* Capture Buffer I */
80	#define FM801_CAP_BUF2 0x1c /* Capture Buffer II */
81	#define FM801_CODEC_CTRL 0x22 /* Codec Control */
82	#define FM801_I2S_MODE 0x24 /* I2S Mode Control */
83	#define FM801_VOLUME 0x26 /* Volume Up/Down/Mute Status */
84	#define FM801_I2C_CTRL 0x29 /* I2C Control */
85	#define FM801_AC97_CMD 0x2a /* AC'97 Command */
86	#define FM801_AC97_DATA 0x2c /* AC'97 Data */
87	#define FM801_MPU401_DATA 0x30 /* MPU401 Data */
88	#define FM801_MPU401_CMD 0x31 /* MPU401 Command */
89	#define FM801_GPIO_CTRL 0x52 /* General Purpose I/O Control */
90	#define FM801_GEN_CTRL 0x54 /* General Control */
91	#define FM801_IRQ_MASK 0x56 /* Interrupt Mask */
92	#define FM801_IRQ_STATUS 0x5a /* Interrupt Status */
93	#define FM801_OPL3_BANK0 0x68 /* OPL3 Status Read / Bank 0 Write */
94	#define FM801_OPL3_DATA0 0x69 /* OPL3 Data 0 Write */
95	#define FM801_OPL3_BANK1 0x6a /* OPL3 Bank 1 Write */
96	#define FM801_OPL3_DATA1 0x6b /* OPL3 Bank 1 Write */
97	#define FM801_POWERDOWN 0x70 /* Blocks Power Down Control */
98
99	/* codec access */
100	#define FM801_AC97_READ (1<<7) /* read=1, write=0 */
101	#define FM801_AC97_VALID (1<<8) /* port valid=1 */
102	#define FM801_AC97_BUSY (1<<9) /* busy=1 */
103	#define FM801_AC97_ADDR_SHIFT 10 /* codec id (2bit) */
104
105	/* playback and record control register bits */
106	#define FM801_BUF1_LAST (1<<1)
107	#define FM801_BUF2_LAST (1<<2)
108	#define FM801_START (1<<5)
109	#define FM801_PAUSE (1<<6)
110	#define FM801_IMMED_STOP (1<<7)
111	#define FM801_RATE_SHIFT 8
112	#define FM801_RATE_MASK (15 << FM801_RATE_SHIFT)
113	#define FM801_CHANNELS_4 (1<<12) /* playback only */
114	#define FM801_CHANNELS_6 (2<<12) /* playback only */
115	#define FM801_CHANNELS_6MS (3<<12) /* playback only */
116	#define FM801_CHANNELS_MASK (3<<12)
117	#define FM801_16BIT (1<<14)
118	#define FM801_STEREO (1<<15)
119
120	/* IRQ status bits */
121	#define FM801_IRQ_PLAYBACK (1<<8)
122	#define FM801_IRQ_CAPTURE (1<<9)
123	#define FM801_IRQ_VOLUME (1<<14)
124	#define FM801_IRQ_MPU (1<<15)
125
126	/* GPIO control register */
127	#define FM801_GPIO_GP0 (1<<0) /* read/write */
128	#define FM801_GPIO_GP1 (1<<1)
129	#define FM801_GPIO_GP2 (1<<2)
130	#define FM801_GPIO_GP3 (1<<3)
131	#define FM801_GPIO_GP(x) (1<<(0+(x)))
132	#define FM801_GPIO_GD0 (1<<8) /* directions: 1 = input, 0 = output*/
133	#define FM801_GPIO_GD1 (1<<9)
134	#define FM801_GPIO_GD2 (1<<10)
135	#define FM801_GPIO_GD3 (1<<11)
136	#define FM801_GPIO_GD(x) (1<<(8+(x)))
137	#define FM801_GPIO_GS0 (1<<12) /* function select: */
138	#define FM801_GPIO_GS1 (1<<13) /* 1 = GPIO */
139	#define FM801_GPIO_GS2 (1<<14) /* 0 = other (S/PDIF, VOL) */
140	#define FM801_GPIO_GS3 (1<<15)
141	#define FM801_GPIO_GS(x) (1<<(12+(x)))
142
143	/**
144	* struct fm801 - describes FM801 chip
145	* @dev: device for this chio
146	* @irq: irq number
147	* @port: I/O port number
148	* @multichannel: multichannel support
149	* @secondary: secondary codec
150	* @secondary_addr: address of the secondary codec
151	* @tea575x_tuner: tuner access method & flags
152	* @ply_ctrl: playback control
153	* @cap_ctrl: capture control
154	* @ply_buffer: playback buffer
155	* @ply_buf: playback buffer index
156	* @ply_count: playback buffer count
157	* @ply_size: playback buffer size
158	* @ply_pos: playback position
159	* @cap_buffer: capture buffer
160	* @cap_buf: capture buffer index
161	* @cap_count: capture buffer count
162	* @cap_size: capture buffer size
163	* @cap_pos: capture position
164	* @ac97_bus: ac97 bus handle
165	* @ac97: ac97 handle
166	* @ac97_sec: ac97 secondary handle
167	* @card: ALSA card
168	* @pcm: PCM devices
169	* @rmidi: rmidi device
170	* @playback_substream: substream for playback
171	* @capture_substream: substream for capture
172	* @p_dma_size: playback DMA size
173	* @c_dma_size: capture DMA size
174	* @reg_lock: lock
175	* @proc_entry: /proc entry
176	* @v4l2_dev: v4l2 device
177	* @tea: tea575a structure
178	* @saved_regs: context saved during suspend
179	*/
180	struct fm801 {
181	struct device *dev;
182	int irq;
183
184	unsigned long port;
185	unsigned int multichannel: 1,
186	secondary: 1;
187	unsigned char secondary_addr;
188	unsigned int tea575x_tuner;
189
190	unsigned short ply_ctrl;
191	unsigned short cap_ctrl;
192
193	unsigned long ply_buffer;
194	unsigned int ply_buf;
195	unsigned int ply_count;
196	unsigned int ply_size;
197	unsigned int ply_pos;
198
199	unsigned long cap_buffer;
200	unsigned int cap_buf;
201	unsigned int cap_count;
202	unsigned int cap_size;
203	unsigned int cap_pos;
204
205	struct snd_ac97_bus *ac97_bus;
206	struct snd_ac97 *ac97;
207	struct snd_ac97 *ac97_sec;
208
209	struct snd_card *card;
210	struct snd_pcm *pcm;
211	struct snd_rawmidi *rmidi;
212	struct snd_pcm_substream *playback_substream;
213	struct snd_pcm_substream *capture_substream;
214	unsigned int p_dma_size;
215	unsigned int c_dma_size;
216
217	spinlock_t reg_lock;
218	struct snd_info_entry *proc_entry;
219
220	#ifdef CONFIG_SND_FM801_TEA575X_BOOL
221	struct v4l2_device v4l2_dev;
222	struct snd_tea575x tea;
223	#endif
224
225	#ifdef CONFIG_PM_SLEEP
226	u16 saved_regs[0x20];
227	#endif
228	};
229
230	/*
231	* IO accessors
232	*/
233
234	static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
235	{
236	outw(value, port: chip->port + offset);
237	}
238
239	static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
240	{
241	return inw(port: chip->port + offset);
242	}
243
244	static const struct pci_device_id snd_fm801_ids[] = {
245	{ 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, }, /* FM801 */
246	{ 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, }, /* Gallant Odyssey Sound 4 */
247	{ 0, }
248	};
249
250	MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
251
252	/*
253	* common I/O routines
254	*/
255
256	static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
257	{
258	unsigned int idx;
259
260	for (idx = 0; idx < iterations; idx++) {
261	if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
262	return true;
263	udelay(10);
264	}
265	return false;
266	}
267
268	static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
269	{
270	unsigned int idx;
271
272	for (idx = 0; idx < iterations; idx++) {
273	if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
274	return true;
275	udelay(10);
276	}
277	return false;
278	}
279
280	static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
281	unsigned short mask, unsigned short value)
282	{
283	int change;
284	unsigned long flags;
285	unsigned short old, new;
286
287	spin_lock_irqsave(&chip->reg_lock, flags);
288	old = fm801_ioread16(chip, offset: reg);
289	new = (old & ~mask) | value;
290	change = old != new;
291	if (change)
292	fm801_iowrite16(chip, offset: reg, value: new);
293	spin_unlock_irqrestore(lock: &chip->reg_lock, flags);
294	return change;
295	}
296
297	static void snd_fm801_codec_write(struct snd_ac97 *ac97,
298	unsigned short reg,
299	unsigned short val)
300	{
301	struct fm801 *chip = ac97->private_data;
302
303	/*
304	* Wait until the codec interface is not ready..
305	*/
306	if (!fm801_ac97_is_ready(chip, iterations: 100)) {
307	dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
308	return;
309	}
310
311	/* write data and address */
312	fm801_writew(chip, AC97_DATA, val);
313	fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
314	/*
315	* Wait until the write command is not completed..
316	*/
317	if (!fm801_ac97_is_ready(chip, iterations: 1000))
318	dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
319	ac97->num);
320	}
321
322	static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
323	{
324	struct fm801 *chip = ac97->private_data;
325
326	/*
327	* Wait until the codec interface is not ready..
328	*/
329	if (!fm801_ac97_is_ready(chip, iterations: 100)) {
330	dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
331	return 0;
332	}
333
334	/* read command */
335	fm801_writew(chip, AC97_CMD,
336	reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
337	if (!fm801_ac97_is_ready(chip, iterations: 100)) {
338	dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
339	ac97->num);
340	return 0;
341	}
342
343	if (!fm801_ac97_is_valid(chip, iterations: 1000)) {
344	dev_err(chip->card->dev,
345	"AC'97 interface #%d is not valid (2)\n", ac97->num);
346	return 0;
347	}
348
349	return fm801_readw(chip, AC97_DATA);
350	}
351
352	static const unsigned int rates[] = {
353	5500, 8000, 9600, 11025,
354	16000, 19200, 22050, 32000,
355	38400, 44100, 48000
356	};
357
358	static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
359	.count = ARRAY_SIZE(rates),
360	.list = rates,
361	.mask = 0,
362	};
363
364	static const unsigned int channels[] = {
365	2, 4, 6
366	};
367
368	static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
369	.count = ARRAY_SIZE(channels),
370	.list = channels,
371	.mask = 0,
372	};
373
374	/*
375	* Sample rate routines
376	*/
377
378	static unsigned short snd_fm801_rate_bits(unsigned int rate)
379	{
380	unsigned int idx;
381
382	for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
383	if (rates[idx] == rate)
384	return idx;
385	snd_BUG();
386	return ARRAY_SIZE(rates) - 1;
387	}
388
389	/*
390	* PCM part
391	*/
392
393	static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
394	int cmd)
395	{
396	struct fm801 *chip = snd_pcm_substream_chip(substream);
397
398	spin_lock(lock: &chip->reg_lock);
399	switch (cmd) {
400	case SNDRV_PCM_TRIGGER_START:
401	chip->ply_ctrl &= ~(FM801_BUF1_LAST |
402	FM801_BUF2_LAST |
403	FM801_PAUSE);
404	chip->ply_ctrl |= FM801_START |
405	FM801_IMMED_STOP;
406	break;
407	case SNDRV_PCM_TRIGGER_STOP:
408	chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
409	break;
410	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
411	case SNDRV_PCM_TRIGGER_SUSPEND:
412	chip->ply_ctrl |= FM801_PAUSE;
413	break;
414	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
415	case SNDRV_PCM_TRIGGER_RESUME:
416	chip->ply_ctrl &= ~FM801_PAUSE;
417	break;
418	default:
419	spin_unlock(lock: &chip->reg_lock);
420	snd_BUG();
421	return -EINVAL;
422	}
423	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
424	spin_unlock(lock: &chip->reg_lock);
425	return 0;
426	}
427
428	static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
429	int cmd)
430	{
431	struct fm801 *chip = snd_pcm_substream_chip(substream);
432
433	spin_lock(lock: &chip->reg_lock);
434	switch (cmd) {
435	case SNDRV_PCM_TRIGGER_START:
436	chip->cap_ctrl &= ~(FM801_BUF1_LAST |
437	FM801_BUF2_LAST |
438	FM801_PAUSE);
439	chip->cap_ctrl |= FM801_START |
440	FM801_IMMED_STOP;
441	break;
442	case SNDRV_PCM_TRIGGER_STOP:
443	chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
444	break;
445	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
446	case SNDRV_PCM_TRIGGER_SUSPEND:
447	chip->cap_ctrl |= FM801_PAUSE;
448	break;
449	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
450	case SNDRV_PCM_TRIGGER_RESUME:
451	chip->cap_ctrl &= ~FM801_PAUSE;
452	break;
453	default:
454	spin_unlock(lock: &chip->reg_lock);
455	snd_BUG();
456	return -EINVAL;
457	}
458	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
459	spin_unlock(lock: &chip->reg_lock);
460	return 0;
461	}
462
463	static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
464	{
465	struct fm801 *chip = snd_pcm_substream_chip(substream);
466	struct snd_pcm_runtime *runtime = substream->runtime;
467
468	chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
469	chip->ply_count = snd_pcm_lib_period_bytes(substream);
470	spin_lock_irq(lock: &chip->reg_lock);
471	chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
472	FM801_STEREO | FM801_RATE_MASK |
473	FM801_CHANNELS_MASK);
474	if (snd_pcm_format_width(format: runtime->format) == 16)
475	chip->ply_ctrl |= FM801_16BIT;
476	if (runtime->channels > 1) {
477	chip->ply_ctrl |= FM801_STEREO;
478	if (runtime->channels == 4)
479	chip->ply_ctrl |= FM801_CHANNELS_4;
480	else if (runtime->channels == 6)
481	chip->ply_ctrl |= FM801_CHANNELS_6;
482	}
483	chip->ply_ctrl |= snd_fm801_rate_bits(rate: runtime->rate) << FM801_RATE_SHIFT;
484	chip->ply_buf = 0;
485	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
486	fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
487	chip->ply_buffer = runtime->dma_addr;
488	chip->ply_pos = 0;
489	fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
490	fm801_writel(chip, PLY_BUF2,
491	chip->ply_buffer + (chip->ply_count % chip->ply_size));
492	spin_unlock_irq(lock: &chip->reg_lock);
493	return 0;
494	}
495
496	static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
497	{
498	struct fm801 *chip = snd_pcm_substream_chip(substream);
499	struct snd_pcm_runtime *runtime = substream->runtime;
500
501	chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
502	chip->cap_count = snd_pcm_lib_period_bytes(substream);
503	spin_lock_irq(lock: &chip->reg_lock);
504	chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
505	FM801_STEREO | FM801_RATE_MASK);
506	if (snd_pcm_format_width(format: runtime->format) == 16)
507	chip->cap_ctrl |= FM801_16BIT;
508	if (runtime->channels > 1)
509	chip->cap_ctrl |= FM801_STEREO;
510	chip->cap_ctrl |= snd_fm801_rate_bits(rate: runtime->rate) << FM801_RATE_SHIFT;
511	chip->cap_buf = 0;
512	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
513	fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
514	chip->cap_buffer = runtime->dma_addr;
515	chip->cap_pos = 0;
516	fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
517	fm801_writel(chip, CAP_BUF2,
518	chip->cap_buffer + (chip->cap_count % chip->cap_size));
519	spin_unlock_irq(lock: &chip->reg_lock);
520	return 0;
521	}
522
523	static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
524	{
525	struct fm801 *chip = snd_pcm_substream_chip(substream);
526	size_t ptr;
527
528	if (!(chip->ply_ctrl & FM801_START))
529	return 0;
530	spin_lock(lock: &chip->reg_lock);
531	ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
532	if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
533	ptr += chip->ply_count;
534	ptr %= chip->ply_size;
535	}
536	spin_unlock(lock: &chip->reg_lock);
537	return bytes_to_frames(runtime: substream->runtime, size: ptr);
538	}
539
540	static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
541	{
542	struct fm801 *chip = snd_pcm_substream_chip(substream);
543	size_t ptr;
544
545	if (!(chip->cap_ctrl & FM801_START))
546	return 0;
547	spin_lock(lock: &chip->reg_lock);
548	ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
549	if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
550	ptr += chip->cap_count;
551	ptr %= chip->cap_size;
552	}
553	spin_unlock(lock: &chip->reg_lock);
554	return bytes_to_frames(runtime: substream->runtime, size: ptr);
555	}
556
557	static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
558	{
559	struct fm801 *chip = dev_id;
560	unsigned short status;
561	unsigned int tmp;
562
563	status = fm801_readw(chip, IRQ_STATUS);
564	status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
565	if (! status)
566	return IRQ_NONE;
567	/* ack first */
568	fm801_writew(chip, IRQ_STATUS, status);
569	if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
570	spin_lock(lock: &chip->reg_lock);
571	chip->ply_buf++;
572	chip->ply_pos += chip->ply_count;
573	chip->ply_pos %= chip->ply_size;
574	tmp = chip->ply_pos + chip->ply_count;
575	tmp %= chip->ply_size;
576	if (chip->ply_buf & 1)
577	fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
578	else
579	fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
580	spin_unlock(lock: &chip->reg_lock);
581	snd_pcm_period_elapsed(substream: chip->playback_substream);
582	}
583	if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
584	spin_lock(lock: &chip->reg_lock);
585	chip->cap_buf++;
586	chip->cap_pos += chip->cap_count;
587	chip->cap_pos %= chip->cap_size;
588	tmp = chip->cap_pos + chip->cap_count;
589	tmp %= chip->cap_size;
590	if (chip->cap_buf & 1)
591	fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
592	else
593	fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
594	spin_unlock(lock: &chip->reg_lock);
595	snd_pcm_period_elapsed(substream: chip->capture_substream);
596	}
597	if (chip->rmidi && (status & FM801_IRQ_MPU))
598	snd_mpu401_uart_interrupt(irq, dev_id: chip->rmidi->private_data);
599	if (status & FM801_IRQ_VOLUME) {
600	/* TODO */
601	}
602
603	return IRQ_HANDLED;
604	}
605
606	static const struct snd_pcm_hardware snd_fm801_playback =
607	{
608	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
609	SNDRV_PCM_INFO_BLOCK_TRANSFER |
610	SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
611	SNDRV_PCM_INFO_MMAP_VALID),
612	.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
613	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
614	.rate_min = 5500,
615	.rate_max = 48000,
616	.channels_min = 1,
617	.channels_max = 2,
618	.buffer_bytes_max = (128*1024),
619	.period_bytes_min = 64,
620	.period_bytes_max = (128*1024),
621	.periods_min = 1,
622	.periods_max = 1024,
623	.fifo_size = 0,
624	};
625
626	static const struct snd_pcm_hardware snd_fm801_capture =
627	{
628	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
629	SNDRV_PCM_INFO_BLOCK_TRANSFER |
630	SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
631	SNDRV_PCM_INFO_MMAP_VALID),
632	.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
633	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
634	.rate_min = 5500,
635	.rate_max = 48000,
636	.channels_min = 1,
637	.channels_max = 2,
638	.buffer_bytes_max = (128*1024),
639	.period_bytes_min = 64,
640	.period_bytes_max = (128*1024),
641	.periods_min = 1,
642	.periods_max = 1024,
643	.fifo_size = 0,
644	};
645
646	static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
647	{
648	struct fm801 *chip = snd_pcm_substream_chip(substream);
649	struct snd_pcm_runtime *runtime = substream->runtime;
650	int err;
651
652	chip->playback_substream = substream;
653	runtime->hw = snd_fm801_playback;
654	snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE,
655	l: &hw_constraints_rates);
656	if (chip->multichannel) {
657	runtime->hw.channels_max = 6;
658	snd_pcm_hw_constraint_list(runtime, cond: 0,
659	SNDRV_PCM_HW_PARAM_CHANNELS,
660	l: &hw_constraints_channels);
661	}
662	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
663	if (err < 0)
664	return err;
665	return 0;
666	}
667
668	static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
669	{
670	struct fm801 *chip = snd_pcm_substream_chip(substream);
671	struct snd_pcm_runtime *runtime = substream->runtime;
672	int err;
673
674	chip->capture_substream = substream;
675	runtime->hw = snd_fm801_capture;
676	snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE,
677	l: &hw_constraints_rates);
678	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
679	if (err < 0)
680	return err;
681	return 0;
682	}
683
684	static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
685	{
686	struct fm801 *chip = snd_pcm_substream_chip(substream);
687
688	chip->playback_substream = NULL;
689	return 0;
690	}
691
692	static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
693	{
694	struct fm801 *chip = snd_pcm_substream_chip(substream);
695
696	chip->capture_substream = NULL;
697	return 0;
698	}
699
700	static const struct snd_pcm_ops snd_fm801_playback_ops = {
701	.open = snd_fm801_playback_open,
702	.close = snd_fm801_playback_close,
703	.prepare = snd_fm801_playback_prepare,
704	.trigger = snd_fm801_playback_trigger,
705	.pointer = snd_fm801_playback_pointer,
706	};
707
708	static const struct snd_pcm_ops snd_fm801_capture_ops = {
709	.open = snd_fm801_capture_open,
710	.close = snd_fm801_capture_close,
711	.prepare = snd_fm801_capture_prepare,
712	.trigger = snd_fm801_capture_trigger,
713	.pointer = snd_fm801_capture_pointer,
714	};
715
716	static int snd_fm801_pcm(struct fm801 *chip, int device)
717	{
718	struct pci_dev *pdev = to_pci_dev(chip->dev);
719	struct snd_pcm *pcm;
720	int err;
721
722	err = snd_pcm_new(card: chip->card, id: "FM801", device, playback_count: 1, capture_count: 1, rpcm: &pcm);
723	if (err < 0)
724	return err;
725
726	snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_PLAYBACK, ops: &snd_fm801_playback_ops);
727	snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_CAPTURE, ops: &snd_fm801_capture_ops);
728
729	pcm->private_data = chip;
730	pcm->info_flags = 0;
731	strcpy(p: pcm->name, q: "FM801");
732	chip->pcm = pcm;
733
734	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, data: &pdev->dev,
735	size: chip->multichannel ? 128*1024 : 64*1024, max: 128*1024);
736
737	return snd_pcm_add_chmap_ctls(pcm, stream: SNDRV_PCM_STREAM_PLAYBACK,
738	chmap: snd_pcm_alt_chmaps,
739	max_channels: chip->multichannel ? 6 : 2, private_value: 0,
740	NULL);
741	}
742
743	/*
744	* TEA5757 radio
745	*/
746
747	#ifdef CONFIG_SND_FM801_TEA575X_BOOL
748
749	/* GPIO to TEA575x maps */
750	struct snd_fm801_tea575x_gpio {
751	u8 data, clk, wren, most;
752	char *name;
753	};
754
755	static const struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
756	{ .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
757	{ .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
758	{ .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
759	};
760
761	#define get_tea575x_gpio(chip) \
762	(&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
763
764	static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
765	{
766	struct fm801 *chip = tea->private_data;
767	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
768	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
769
770	reg &= ~(FM801_GPIO_GP(gpio.data) |
771	FM801_GPIO_GP(gpio.clk) |
772	FM801_GPIO_GP(gpio.wren));
773
774	reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
775	reg |= (pins & TEA575X_CLK) ? FM801_GPIO_GP(gpio.clk) : 0;
776	/* WRITE_ENABLE is inverted */
777	reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
778
779	fm801_writew(chip, GPIO_CTRL, reg);
780	}
781
782	static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
783	{
784	struct fm801 *chip = tea->private_data;
785	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
786	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
787	u8 ret;
788
789	ret = 0;
790	if (reg & FM801_GPIO_GP(gpio.data))
791	ret |= TEA575X_DATA;
792	if (reg & FM801_GPIO_GP(gpio.most))
793	ret |= TEA575X_MOST;
794	return ret;
795	}
796
797	static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
798	{
799	struct fm801 *chip = tea->private_data;
800	unsigned short reg = fm801_readw(chip, GPIO_CTRL);
801	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
802
803	/* use GPIO lines and set write enable bit */
804	reg |= FM801_GPIO_GS(gpio.data) |
805	FM801_GPIO_GS(gpio.wren) |
806	FM801_GPIO_GS(gpio.clk) |
807	FM801_GPIO_GS(gpio.most);
808	if (output) {
809	/* all of lines are in the write direction */
810	/* clear data and clock lines */
811	reg &= ~(FM801_GPIO_GD(gpio.data) |
812	FM801_GPIO_GD(gpio.wren) |
813	FM801_GPIO_GD(gpio.clk) |
814	FM801_GPIO_GP(gpio.data) |
815	FM801_GPIO_GP(gpio.clk) |
816	FM801_GPIO_GP(gpio.wren));
817	} else {
818	/* use GPIO lines, set data direction to input */
819	reg |= FM801_GPIO_GD(gpio.data) |
820	FM801_GPIO_GD(gpio.most) |
821	FM801_GPIO_GP(gpio.data) |
822	FM801_GPIO_GP(gpio.most) |
823	FM801_GPIO_GP(gpio.wren);
824	/* all of lines are in the write direction, except data */
825	/* clear data, write enable and clock lines */
826	reg &= ~(FM801_GPIO_GD(gpio.wren) |
827	FM801_GPIO_GD(gpio.clk) |
828	FM801_GPIO_GP(gpio.clk));
829	}
830
831	fm801_writew(chip, GPIO_CTRL, reg);
832	}
833
834	static const struct snd_tea575x_ops snd_fm801_tea_ops = {
835	.set_pins = snd_fm801_tea575x_set_pins,
836	.get_pins = snd_fm801_tea575x_get_pins,
837	.set_direction = snd_fm801_tea575x_set_direction,
838	};
839	#endif
840
841	/*
842	* Mixer routines
843	*/
844
845	#define FM801_SINGLE(xname, reg, shift, mask, invert) \
846	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
847	.get = snd_fm801_get_single, .put = snd_fm801_put_single, \
848	.private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
849
850	static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
851	struct snd_ctl_elem_info *uinfo)
852	{
853	int mask = (kcontrol->private_value >> 16) & 0xff;
854
855	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
856	uinfo->count = 1;
857	uinfo->value.integer.min = 0;
858	uinfo->value.integer.max = mask;
859	return 0;
860	}
861
862	static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
863	struct snd_ctl_elem_value *ucontrol)
864	{
865	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
866	int reg = kcontrol->private_value & 0xff;
867	int shift = (kcontrol->private_value >> 8) & 0xff;
868	int mask = (kcontrol->private_value >> 16) & 0xff;
869	int invert = (kcontrol->private_value >> 24) & 0xff;
870	long *value = ucontrol->value.integer.value;
871
872	value[0] = (fm801_ioread16(chip, offset: reg) >> shift) & mask;
873	if (invert)
874	value[0] = mask - value[0];
875	return 0;
876	}
877
878	static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
879	struct snd_ctl_elem_value *ucontrol)
880	{
881	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
882	int reg = kcontrol->private_value & 0xff;
883	int shift = (kcontrol->private_value >> 8) & 0xff;
884	int mask = (kcontrol->private_value >> 16) & 0xff;
885	int invert = (kcontrol->private_value >> 24) & 0xff;
886	unsigned short val;
887
888	val = (ucontrol->value.integer.value[0] & mask);
889	if (invert)
890	val = mask - val;
891	return snd_fm801_update_bits(chip, reg, mask: mask << shift, value: val << shift);
892	}
893
894	#define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
895	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
896	.get = snd_fm801_get_double, .put = snd_fm801_put_double, \
897	.private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
898	#define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
899	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
900	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
901	.name = xname, .info = snd_fm801_info_double, \
902	.get = snd_fm801_get_double, .put = snd_fm801_put_double, \
903	.private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
904	.tlv = { .p = (xtlv) } }
905
906	static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
907	struct snd_ctl_elem_info *uinfo)
908	{
909	int mask = (kcontrol->private_value >> 16) & 0xff;
910
911	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
912	uinfo->count = 2;
913	uinfo->value.integer.min = 0;
914	uinfo->value.integer.max = mask;
915	return 0;
916	}
917
918	static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
919	struct snd_ctl_elem_value *ucontrol)
920	{
921	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
922	int reg = kcontrol->private_value & 0xff;
923	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
924	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
925	int mask = (kcontrol->private_value >> 16) & 0xff;
926	int invert = (kcontrol->private_value >> 24) & 0xff;
927	long *value = ucontrol->value.integer.value;
928
929	spin_lock_irq(lock: &chip->reg_lock);
930	value[0] = (fm801_ioread16(chip, offset: reg) >> shift_left) & mask;
931	value[1] = (fm801_ioread16(chip, offset: reg) >> shift_right) & mask;
932	spin_unlock_irq(lock: &chip->reg_lock);
933	if (invert) {
934	value[0] = mask - value[0];
935	value[1] = mask - value[1];
936	}
937	return 0;
938	}
939
940	static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
941	struct snd_ctl_elem_value *ucontrol)
942	{
943	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
944	int reg = kcontrol->private_value & 0xff;
945	int shift_left = (kcontrol->private_value >> 8) & 0x0f;
946	int shift_right = (kcontrol->private_value >> 12) & 0x0f;
947	int mask = (kcontrol->private_value >> 16) & 0xff;
948	int invert = (kcontrol->private_value >> 24) & 0xff;
949	unsigned short val1, val2;
950
951	val1 = ucontrol->value.integer.value[0] & mask;
952	val2 = ucontrol->value.integer.value[1] & mask;
953	if (invert) {
954	val1 = mask - val1;
955	val2 = mask - val2;
956	}
957	return snd_fm801_update_bits(chip, reg,
958	mask: (mask << shift_left) | (mask << shift_right),
959	value: (val1 << shift_left ) | (val2 << shift_right));
960	}
961
962	static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
963	struct snd_ctl_elem_info *uinfo)
964	{
965	static const char * const texts[5] = {
966	"AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
967	};
968
969	return snd_ctl_enum_info(info: uinfo, channels: 1, items: 5, names: texts);
970	}
971
972	static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
973	struct snd_ctl_elem_value *ucontrol)
974	{
975	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
976	unsigned short val;
977
978	val = fm801_readw(chip, REC_SRC) & 7;
979	if (val > 4)
980	val = 4;
981	ucontrol->value.enumerated.item[0] = val;
982	return 0;
983	}
984
985	static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
986	struct snd_ctl_elem_value *ucontrol)
987	{
988	struct fm801 *chip = snd_kcontrol_chip(kcontrol);
989	unsigned short val;
990
991	val = ucontrol->value.enumerated.item[0];
992	if (val > 4)
993	return -EINVAL;
994	return snd_fm801_update_bits(chip, FM801_REC_SRC, mask: 7, value: val);
995	}
996
997	static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
998
999	#define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
1000
1001	static const struct snd_kcontrol_new snd_fm801_controls[] = {
1002	FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
1003	db_scale_dsp),
1004	FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
1005	FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
1006	db_scale_dsp),
1007	FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
1008	FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
1009	db_scale_dsp),
1010	FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
1011	{
1012	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1013	.name = "Digital Capture Source",
1014	.info = snd_fm801_info_mux,
1015	.get = snd_fm801_get_mux,
1016	.put = snd_fm801_put_mux,
1017	}
1018	};
1019
1020	#define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
1021
1022	static const struct snd_kcontrol_new snd_fm801_controls_multi[] = {
1023	FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
1024	FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
1025	FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
1026	FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
1027	FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
1028	FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1029	};
1030
1031	static int snd_fm801_mixer(struct fm801 *chip)
1032	{
1033	struct snd_ac97_template ac97;
1034	unsigned int i;
1035	int err;
1036	static const struct snd_ac97_bus_ops ops = {
1037	.write = snd_fm801_codec_write,
1038	.read = snd_fm801_codec_read,
1039	};
1040
1041	err = snd_ac97_bus(card: chip->card, num: 0, ops: &ops, private_data: chip, rbus: &chip->ac97_bus);
1042	if (err < 0)
1043	return err;
1044
1045	memset(&ac97, 0, sizeof(ac97));
1046	ac97.private_data = chip;
1047	err = snd_ac97_mixer(bus: chip->ac97_bus, template: &ac97, rac97: &chip->ac97);
1048	if (err < 0)
1049	return err;
1050	if (chip->secondary) {
1051	ac97.num = 1;
1052	ac97.addr = chip->secondary_addr;
1053	err = snd_ac97_mixer(bus: chip->ac97_bus, template: &ac97, rac97: &chip->ac97_sec);
1054	if (err < 0)
1055	return err;
1056	}
1057	for (i = 0; i < FM801_CONTROLS; i++) {
1058	err = snd_ctl_add(card: chip->card,
1059	kcontrol: snd_ctl_new1(kcontrolnew: &snd_fm801_controls[i], private_data: chip));
1060	if (err < 0)
1061	return err;
1062	}
1063	if (chip->multichannel) {
1064	for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1065	err = snd_ctl_add(card: chip->card,
1066	kcontrol: snd_ctl_new1(kcontrolnew: &snd_fm801_controls_multi[i], private_data: chip));
1067	if (err < 0)
1068	return err;
1069	}
1070	}
1071	return 0;
1072	}
1073
1074	/*
1075	* initialization routines
1076	*/
1077
1078	static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1079	unsigned short reg, unsigned long waits)
1080	{
1081	unsigned long timeout = jiffies + waits;
1082
1083	fm801_writew(chip, AC97_CMD,
1084	reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1085	udelay(5);
1086	do {
1087	if ((fm801_readw(chip, AC97_CMD) &
1088	(FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1089	return 0;
1090	schedule_timeout_uninterruptible(timeout: 1);
1091	} while (time_after(timeout, jiffies));
1092	return -EIO;
1093	}
1094
1095	static int reset_codec(struct fm801 *chip)
1096	{
1097	/* codec cold reset + AC'97 warm reset */
1098	fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1099	fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1100	udelay(100);
1101	fm801_writew(chip, CODEC_CTRL, 0);
1102
1103	return wait_for_codec(chip, codec_id: 0, AC97_RESET, waits: msecs_to_jiffies(m: 750));
1104	}
1105
1106	static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1107	{
1108	unsigned short cmdw;
1109
1110	if (chip->multichannel) {
1111	if (chip->secondary_addr) {
1112	wait_for_codec(chip, codec_id: chip->secondary_addr,
1113	AC97_VENDOR_ID1, waits: msecs_to_jiffies(m: 50));
1114	} else {
1115	/* my card has the secondary codec */
1116	/* at address #3, so the loop is inverted */
1117	int i;
1118	for (i = 3; i > 0; i--) {
1119	if (!wait_for_codec(chip, codec_id: i, AC97_VENDOR_ID1,
1120	waits: msecs_to_jiffies(m: 50))) {
1121	cmdw = fm801_readw(chip, AC97_DATA);
1122	if (cmdw != 0xffff && cmdw != 0) {
1123	chip->secondary = 1;
1124	chip->secondary_addr = i;
1125	break;
1126	}
1127	}
1128	}
1129	}
1130
1131	/* the recovery phase, it seems that probing for non-existing codec might */
1132	/* cause timeout problems */
1133	wait_for_codec(chip, codec_id: 0, AC97_VENDOR_ID1, waits: msecs_to_jiffies(m: 750));
1134	}
1135	}
1136
1137	static void snd_fm801_chip_init(struct fm801 *chip)
1138	{
1139	unsigned short cmdw;
1140
1141	/* init volume */
1142	fm801_writew(chip, PCM_VOL, 0x0808);
1143	fm801_writew(chip, FM_VOL, 0x9f1f);
1144	fm801_writew(chip, I2S_VOL, 0x8808);
1145
1146	/* I2S control - I2S mode */
1147	fm801_writew(chip, I2S_MODE, 0x0003);
1148
1149	/* interrupt setup */
1150	cmdw = fm801_readw(chip, IRQ_MASK);
1151	if (chip->irq < 0)
1152	cmdw |= 0x00c3; /* mask everything, no PCM nor MPU */
1153	else
1154	cmdw &= ~0x0083; /* unmask MPU, PLAYBACK & CAPTURE */
1155	fm801_writew(chip, IRQ_MASK, cmdw);
1156
1157	/* interrupt clear */
1158	fm801_writew(chip, IRQ_STATUS,
1159	FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1160	}
1161
1162	static void snd_fm801_free(struct snd_card *card)
1163	{
1164	struct fm801 *chip = card->private_data;
1165	unsigned short cmdw;
1166
1167	/* interrupt setup - mask everything */
1168	cmdw = fm801_readw(chip, IRQ_MASK);
1169	cmdw |= 0x00c3;
1170	fm801_writew(chip, IRQ_MASK, cmdw);
1171
1172	#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1173	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1174	snd_tea575x_exit(tea: &chip->tea);
1175	v4l2_device_unregister(v4l2_dev: &chip->v4l2_dev);
1176	}
1177	#endif
1178	}
1179
1180	static int snd_fm801_create(struct snd_card *card,
1181	struct pci_dev *pci,
1182	int tea575x_tuner,
1183	int radio_nr)
1184	{
1185	struct fm801 *chip = card->private_data;
1186	int err;
1187
1188	err = pcim_enable_device(pdev: pci);
1189	if (err < 0)
1190	return err;
1191	spin_lock_init(&chip->reg_lock);
1192	chip->card = card;
1193	chip->dev = &pci->dev;
1194	chip->irq = -1;
1195	chip->tea575x_tuner = tea575x_tuner;
1196	err = pci_request_regions(pci, "FM801");
1197	if (err < 0)
1198	return err;
1199	chip->port = pci_resource_start(pci, 0);
1200
1201	if (pci->revision >= 0xb1) /* FM801-AU */
1202	chip->multichannel = 1;
1203
1204	if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1205	if (reset_codec(chip) < 0) {
1206	dev_info(chip->card->dev,
1207	"Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1208	chip->tea575x_tuner = 3 | TUNER_ONLY;
1209	} else {
1210	snd_fm801_chip_multichannel_init(chip);
1211	}
1212	}
1213
1214	if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1215	if (devm_request_irq(dev: &pci->dev, irq: pci->irq, handler: snd_fm801_interrupt,
1216	IRQF_SHARED, KBUILD_MODNAME, dev_id: chip)) {
1217	dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1218	return -EBUSY;
1219	}
1220	chip->irq = pci->irq;
1221	card->sync_irq = chip->irq;
1222	pci_set_master(dev: pci);
1223	}
1224
1225	card->private_free = snd_fm801_free;
1226	snd_fm801_chip_init(chip);
1227
1228	#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1229	err = v4l2_device_register(dev: &pci->dev, v4l2_dev: &chip->v4l2_dev);
1230	if (err < 0)
1231	return err;
1232	chip->tea.v4l2_dev = &chip->v4l2_dev;
1233	chip->tea.radio_nr = radio_nr;
1234	chip->tea.private_data = chip;
1235	chip->tea.ops = &snd_fm801_tea_ops;
1236	sprintf(buf: chip->tea.bus_info, fmt: "PCI:%s", pci_name(pdev: pci));
1237	if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1238	(chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1239	if (snd_tea575x_init(tea: &chip->tea, THIS_MODULE)) {
1240	dev_err(card->dev, "TEA575x radio not found\n");
1241	return -ENODEV;
1242	}
1243	} else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1244	unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1245
1246	/* autodetect tuner connection */
1247	for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1248	chip->tea575x_tuner = tea575x_tuner;
1249	if (!snd_tea575x_init(tea: &chip->tea, THIS_MODULE)) {
1250	dev_info(card->dev,
1251	"detected TEA575x radio type %s\n",
1252	get_tea575x_gpio(chip)->name);
1253	break;
1254	}
1255	}
1256	if (tea575x_tuner == 4) {
1257	dev_err(card->dev, "TEA575x radio not found\n");
1258	chip->tea575x_tuner = TUNER_DISABLED;
1259	}
1260
1261	chip->tea575x_tuner |= tuner_only;
1262	}
1263	if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1264	strscpy(p: chip->tea.card, get_tea575x_gpio(chip)->name,
1265	size: sizeof(chip->tea.card));
1266	}
1267	#endif
1268	return 0;
1269	}
1270
1271	static int __snd_card_fm801_probe(struct pci_dev *pci,
1272	const struct pci_device_id *pci_id)
1273	{
1274	static int dev;
1275	struct snd_card *card;
1276	struct fm801 *chip;
1277	struct snd_opl3 *opl3;
1278	int err;
1279
1280	if (dev >= SNDRV_CARDS)
1281	return -ENODEV;
1282	if (!enable[dev]) {
1283	dev++;
1284	return -ENOENT;
1285	}
1286
1287	err = snd_devm_card_new(parent: &pci->dev, idx: index[dev], xid: id[dev], THIS_MODULE,
1288	extra_size: sizeof(*chip), card_ret: &card);
1289	if (err < 0)
1290	return err;
1291	chip = card->private_data;
1292	err = snd_fm801_create(card, pci, tea575x_tuner: tea575x_tuner[dev], radio_nr: radio_nr[dev]);
1293	if (err < 0)
1294	return err;
1295
1296	strcpy(p: card->driver, q: "FM801");
1297	strcpy(p: card->shortname, q: "ForteMedia FM801-");
1298	strcat(p: card->shortname, q: chip->multichannel ? "AU" : "AS");
1299	sprintf(buf: card->longname, fmt: "%s at 0x%lx, irq %i",
1300	card->shortname, chip->port, chip->irq);
1301
1302	if (chip->tea575x_tuner & TUNER_ONLY)
1303	goto __fm801_tuner_only;
1304
1305	err = snd_fm801_pcm(chip, device: 0);
1306	if (err < 0)
1307	return err;
1308	err = snd_fm801_mixer(chip);
1309	if (err < 0)
1310	return err;
1311	err = snd_mpu401_uart_new(card, device: 0, MPU401_HW_FM801,
1312	port: chip->port + FM801_MPU401_DATA,
1313	MPU401_INFO_INTEGRATED |
1314	MPU401_INFO_IRQ_HOOK,
1315	irq: -1, rrawmidi: &chip->rmidi);
1316	if (err < 0)
1317	return err;
1318	err = snd_opl3_create(card, l_port: chip->port + FM801_OPL3_BANK0,
1319	r_port: chip->port + FM801_OPL3_BANK1,
1320	OPL3_HW_OPL3_FM801, integrated: 1, opl3: &opl3);
1321	if (err < 0)
1322	return err;
1323	err = snd_opl3_hwdep_new(opl3, device: 0, seq_device: 1, NULL);
1324	if (err < 0)
1325	return err;
1326
1327	__fm801_tuner_only:
1328	err = snd_card_register(card);
1329	if (err < 0)
1330	return err;
1331	pci_set_drvdata(pdev: pci, data: card);
1332	dev++;
1333	return 0;
1334	}
1335
1336	static int snd_card_fm801_probe(struct pci_dev *pci,
1337	const struct pci_device_id *pci_id)
1338	{
1339	return snd_card_free_on_error(dev: &pci->dev, ret: __snd_card_fm801_probe(pci, pci_id));
1340	}
1341
1342	#ifdef CONFIG_PM_SLEEP
1343	static const unsigned char saved_regs[] = {
1344	FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1345	FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1346	FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1347	FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1348	};
1349
1350	static int snd_fm801_suspend(struct device *dev)
1351	{
1352	struct snd_card *card = dev_get_drvdata(dev);
1353	struct fm801 *chip = card->private_data;
1354	int i;
1355
1356	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1357
1358	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1359	chip->saved_regs[i] = fm801_ioread16(chip, offset: saved_regs[i]);
1360
1361	if (chip->tea575x_tuner & TUNER_ONLY) {
1362	/* FIXME: tea575x suspend */
1363	} else {
1364	snd_ac97_suspend(ac97: chip->ac97);
1365	snd_ac97_suspend(ac97: chip->ac97_sec);
1366	}
1367
1368	return 0;
1369	}
1370
1371	static int snd_fm801_resume(struct device *dev)
1372	{
1373	struct snd_card *card = dev_get_drvdata(dev);
1374	struct fm801 *chip = card->private_data;
1375	int i;
1376
1377	if (chip->tea575x_tuner & TUNER_ONLY) {
1378	snd_fm801_chip_init(chip);
1379	} else {
1380	reset_codec(chip);
1381	snd_fm801_chip_multichannel_init(chip);
1382	snd_fm801_chip_init(chip);
1383	snd_ac97_resume(ac97: chip->ac97);
1384	snd_ac97_resume(ac97: chip->ac97_sec);
1385	}
1386
1387	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1388	fm801_iowrite16(chip, offset: saved_regs[i], value: chip->saved_regs[i]);
1389
1390	#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1391	if (!(chip->tea575x_tuner & TUNER_DISABLED))
1392	snd_tea575x_set_freq(tea: &chip->tea);
1393	#endif
1394
1395	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1396	return 0;
1397	}
1398
1399	static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1400	#define SND_FM801_PM_OPS &snd_fm801_pm
1401	#else
1402	#define SND_FM801_PM_OPS NULL
1403	#endif /* CONFIG_PM_SLEEP */
1404
1405	static struct pci_driver fm801_driver = {
1406	.name = KBUILD_MODNAME,
1407	.id_table = snd_fm801_ids,
1408	.probe = snd_card_fm801_probe,
1409	.driver = {
1410	.pm = SND_FM801_PM_OPS,
1411	},
1412	};
1413
1414	module_pci_driver(fm801_driver);
1415