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 
fm801_iowrite16(struct fm801 * chip,unsigned short offset,u16 value)234 static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
235 {
236 	outw(value, chip->port + offset);
237 }
238 
fm801_ioread16(struct fm801 * chip,unsigned short offset)239 static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
240 {
241 	return inw(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 
fm801_ac97_is_ready(struct fm801 * chip,unsigned int iterations)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 
fm801_ac97_is_valid(struct fm801 * chip,unsigned int iterations)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 
snd_fm801_update_bits(struct fm801 * chip,unsigned short reg,unsigned short mask,unsigned short value)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, reg);
289 	new = (old & ~mask) | value;
290 	change = old != new;
291 	if (change)
292 		fm801_iowrite16(chip, reg, new);
293 	spin_unlock_irqrestore(&chip->reg_lock, flags);
294 	return change;
295 }
296 
snd_fm801_codec_write(struct snd_ac97 * ac97,unsigned short reg,unsigned short val)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, 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, 1000))
318 		dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
319 		ac97->num);
320 }
321 
snd_fm801_codec_read(struct snd_ac97 * ac97,unsigned short reg)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, 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, 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, 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 
snd_fm801_rate_bits(unsigned int rate)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 
snd_fm801_playback_trigger(struct snd_pcm_substream * substream,int cmd)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(&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(&chip->reg_lock);
420 		snd_BUG();
421 		return -EINVAL;
422 	}
423 	fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
424 	spin_unlock(&chip->reg_lock);
425 	return 0;
426 }
427 
snd_fm801_capture_trigger(struct snd_pcm_substream * substream,int cmd)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(&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(&chip->reg_lock);
455 		snd_BUG();
456 		return -EINVAL;
457 	}
458 	fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
459 	spin_unlock(&chip->reg_lock);
460 	return 0;
461 }
462 
snd_fm801_playback_prepare(struct snd_pcm_substream * substream)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(&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(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(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(&chip->reg_lock);
493 	return 0;
494 }
495 
snd_fm801_capture_prepare(struct snd_pcm_substream * substream)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(&chip->reg_lock);
504 	chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
505 			     FM801_STEREO | FM801_RATE_MASK);
506 	if (snd_pcm_format_width(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(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(&chip->reg_lock);
520 	return 0;
521 }
522 
snd_fm801_playback_pointer(struct snd_pcm_substream * substream)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(&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(&chip->reg_lock);
537 	return bytes_to_frames(substream->runtime, ptr);
538 }
539 
snd_fm801_capture_pointer(struct snd_pcm_substream * substream)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(&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(&chip->reg_lock);
554 	return bytes_to_frames(substream->runtime, ptr);
555 }
556 
snd_fm801_interrupt(int irq,void * dev_id)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(&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(&chip->reg_lock);
581 		snd_pcm_period_elapsed(chip->playback_substream);
582 	}
583 	if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
584 		spin_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(&chip->reg_lock);
595 		snd_pcm_period_elapsed(chip->capture_substream);
596 	}
597 	if (chip->rmidi && (status & FM801_IRQ_MPU))
598 		snd_mpu401_uart_interrupt(irq, 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 
snd_fm801_playback_open(struct snd_pcm_substream * substream)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, 0, SNDRV_PCM_HW_PARAM_RATE,
655 				   &hw_constraints_rates);
656 	if (chip->multichannel) {
657 		runtime->hw.channels_max = 6;
658 		snd_pcm_hw_constraint_list(runtime, 0,
659 					   SNDRV_PCM_HW_PARAM_CHANNELS,
660 					   &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 
snd_fm801_capture_open(struct snd_pcm_substream * substream)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, 0, SNDRV_PCM_HW_PARAM_RATE,
677 				   &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 
snd_fm801_playback_close(struct snd_pcm_substream * substream)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 
snd_fm801_capture_close(struct snd_pcm_substream * substream)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 
snd_fm801_pcm(struct fm801 * chip,int device)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(chip->card, "FM801", device, 1, 1, &pcm);
723 	if (err < 0)
724 		return err;
725 
726 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
727 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
728 
729 	pcm->private_data = chip;
730 	pcm->info_flags = 0;
731 	strcpy(pcm->name, "FM801");
732 	chip->pcm = pcm;
733 
734 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &pdev->dev,
735 				       chip->multichannel ? 128*1024 : 64*1024, 128*1024);
736 
737 	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
738 				     snd_pcm_alt_chmaps,
739 				     chip->multichannel ? 6 : 2, 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 
snd_fm801_tea575x_set_pins(struct snd_tea575x * tea,u8 pins)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 
snd_fm801_tea575x_get_pins(struct snd_tea575x * tea)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 
snd_fm801_tea575x_set_direction(struct snd_tea575x * tea,bool output)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 
snd_fm801_info_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)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 
snd_fm801_get_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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, reg) >> shift) & mask;
873 	if (invert)
874 		value[0] = mask - value[0];
875 	return 0;
876 }
877 
snd_fm801_put_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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 << shift, 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 
snd_fm801_info_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)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 
snd_fm801_get_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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(&chip->reg_lock);
930 	value[0] = (fm801_ioread16(chip, reg) >> shift_left) & mask;
931 	value[1] = (fm801_ioread16(chip, reg) >> shift_right) & mask;
932 	spin_unlock_irq(&chip->reg_lock);
933 	if (invert) {
934 		value[0] = mask - value[0];
935 		value[1] = mask - value[1];
936 	}
937 	return 0;
938 }
939 
snd_fm801_put_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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 << shift_left) | (mask << shift_right),
959 				     (val1 << shift_left ) | (val2 << shift_right));
960 }
961 
snd_fm801_info_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)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(uinfo, 1, 5, texts);
970 }
971 
snd_fm801_get_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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 
snd_fm801_put_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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, 7, 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 
snd_fm801_mixer(struct fm801 * chip)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(chip->card, 0, &ops, chip, &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(chip->ac97_bus, &ac97, &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(chip->ac97_bus, &ac97, &chip->ac97_sec);
1054 		if (err < 0)
1055 			return err;
1056 	}
1057 	for (i = 0; i < FM801_CONTROLS; i++) {
1058 		err = snd_ctl_add(chip->card,
1059 			snd_ctl_new1(&snd_fm801_controls[i], 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(chip->card,
1066 				snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1067 			if (err < 0)
1068 				return err;
1069 		}
1070 	}
1071 	return 0;
1072 }
1073 
1074 /*
1075  *  initialization routines
1076  */
1077 
wait_for_codec(struct fm801 * chip,unsigned int codec_id,unsigned short reg,unsigned long waits)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(1);
1091 	} while (time_after(timeout, jiffies));
1092 	return -EIO;
1093 }
1094 
reset_codec(struct fm801 * chip)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, 0, AC97_RESET, msecs_to_jiffies(750));
1104 }
1105 
snd_fm801_chip_multichannel_init(struct fm801 * chip)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, chip->secondary_addr,
1113 				       AC97_VENDOR_ID1, msecs_to_jiffies(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, i, AC97_VENDOR_ID1,
1120 						     msecs_to_jiffies(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, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1134 	}
1135 }
1136 
snd_fm801_chip_init(struct fm801 * chip)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 
snd_fm801_free(struct snd_card * card)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(&chip->tea);
1175 		v4l2_device_unregister(&chip->v4l2_dev);
1176 	}
1177 #endif
1178 }
1179 
snd_fm801_create(struct snd_card * card,struct pci_dev * pci,int tea575x_tuner,int radio_nr)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(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(&pci->dev, pci->irq, snd_fm801_interrupt,
1216 				IRQF_SHARED, KBUILD_MODNAME, 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(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(&pci->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(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1237 	if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1238 	    (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1239 		if (snd_tea575x_init(&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(&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(chip->tea.card, get_tea575x_gpio(chip)->name,
1265 			sizeof(chip->tea.card));
1266 	}
1267 #endif
1268 	return 0;
1269 }
1270 
__snd_card_fm801_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)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(&pci->dev, index[dev], id[dev], THIS_MODULE,
1288 				sizeof(*chip), &card);
1289 	if (err < 0)
1290 		return err;
1291 	chip = card->private_data;
1292 	err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev]);
1293 	if (err < 0)
1294 		return err;
1295 
1296 	strcpy(card->driver, "FM801");
1297 	strcpy(card->shortname, "ForteMedia FM801-");
1298 	strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1299 	sprintf(card->longname, "%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, 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, 0, MPU401_HW_FM801,
1312 				  chip->port + FM801_MPU401_DATA,
1313 				  MPU401_INFO_INTEGRATED |
1314 				  MPU401_INFO_IRQ_HOOK,
1315 				  -1, &chip->rmidi);
1316 	if (err < 0)
1317 		return err;
1318 	err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1319 			      chip->port + FM801_OPL3_BANK1,
1320 			      OPL3_HW_OPL3_FM801, 1, &opl3);
1321 	if (err < 0)
1322 		return err;
1323 	err = snd_opl3_hwdep_new(opl3, 0, 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(pci, card);
1332 	dev++;
1333 	return 0;
1334 }
1335 
snd_card_fm801_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)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(&pci->dev, __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 
snd_fm801_suspend(struct device * dev)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, saved_regs[i]);
1360 
1361 	if (chip->tea575x_tuner & TUNER_ONLY) {
1362 		/* FIXME: tea575x suspend */
1363 	} else {
1364 		snd_ac97_suspend(chip->ac97);
1365 		snd_ac97_suspend(chip->ac97_sec);
1366 	}
1367 
1368 	return 0;
1369 }
1370 
snd_fm801_resume(struct device * dev)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(chip->ac97);
1384 		snd_ac97_resume(chip->ac97_sec);
1385 	}
1386 
1387 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1388 		fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1389 
1390 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1391 	if (!(chip->tea575x_tuner & TUNER_DISABLED))
1392 		snd_tea575x_set_freq(&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