ALSA: fm801: Constify snd_fm801_tea575x_gpios
[muen/linux.git] / sound / pci / fm801.c
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 MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
30                 "{Genius,SoundMaker Live 5.1}}");
31
32 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
33 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
34 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
35 /*
36  *  Enable TEA575x tuner
37  *    1 = MediaForte 256-PCS
38  *    2 = MediaForte 256-PCP
39  *    3 = MediaForte 64-PCR
40  *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
41  *  High 16-bits are video (radio) device number + 1
42  */
43 static int tea575x_tuner[SNDRV_CARDS];
44 static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
45
46 module_param_array(index, int, NULL, 0444);
47 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
48 module_param_array(id, charp, NULL, 0444);
49 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
50 module_param_array(enable, bool, NULL, 0444);
51 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
52 module_param_array(tea575x_tuner, int, NULL, 0444);
53 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).");
54 module_param_array(radio_nr, int, NULL, 0444);
55 MODULE_PARM_DESC(radio_nr, "Radio device numbers");
56
57
58 #define TUNER_DISABLED          (1<<3)
59 #define TUNER_ONLY              (1<<4)
60 #define TUNER_TYPE_MASK         (~TUNER_ONLY & 0xFFFF)
61
62 /*
63  *  Direct registers
64  */
65
66 #define fm801_writew(chip,reg,value)    outw((value), chip->port + FM801_##reg)
67 #define fm801_readw(chip,reg)           inw(chip->port + FM801_##reg)
68
69 #define fm801_writel(chip,reg,value)    outl((value), chip->port + FM801_##reg)
70
71 #define FM801_PCM_VOL           0x00    /* PCM Output Volume */
72 #define FM801_FM_VOL            0x02    /* FM Output Volume */
73 #define FM801_I2S_VOL           0x04    /* I2S Volume */
74 #define FM801_REC_SRC           0x06    /* Record Source */
75 #define FM801_PLY_CTRL          0x08    /* Playback Control */
76 #define FM801_PLY_COUNT         0x0a    /* Playback Count */
77 #define FM801_PLY_BUF1          0x0c    /* Playback Bufer I */
78 #define FM801_PLY_BUF2          0x10    /* Playback Buffer II */
79 #define FM801_CAP_CTRL          0x14    /* Capture Control */
80 #define FM801_CAP_COUNT         0x16    /* Capture Count */
81 #define FM801_CAP_BUF1          0x18    /* Capture Buffer I */
82 #define FM801_CAP_BUF2          0x1c    /* Capture Buffer II */
83 #define FM801_CODEC_CTRL        0x22    /* Codec Control */
84 #define FM801_I2S_MODE          0x24    /* I2S Mode Control */
85 #define FM801_VOLUME            0x26    /* Volume Up/Down/Mute Status */
86 #define FM801_I2C_CTRL          0x29    /* I2C Control */
87 #define FM801_AC97_CMD          0x2a    /* AC'97 Command */
88 #define FM801_AC97_DATA         0x2c    /* AC'97 Data */
89 #define FM801_MPU401_DATA       0x30    /* MPU401 Data */
90 #define FM801_MPU401_CMD        0x31    /* MPU401 Command */
91 #define FM801_GPIO_CTRL         0x52    /* General Purpose I/O Control */
92 #define FM801_GEN_CTRL          0x54    /* General Control */
93 #define FM801_IRQ_MASK          0x56    /* Interrupt Mask */
94 #define FM801_IRQ_STATUS        0x5a    /* Interrupt Status */
95 #define FM801_OPL3_BANK0        0x68    /* OPL3 Status Read / Bank 0 Write */
96 #define FM801_OPL3_DATA0        0x69    /* OPL3 Data 0 Write */
97 #define FM801_OPL3_BANK1        0x6a    /* OPL3 Bank 1 Write */
98 #define FM801_OPL3_DATA1        0x6b    /* OPL3 Bank 1 Write */
99 #define FM801_POWERDOWN         0x70    /* Blocks Power Down Control */
100
101 /* codec access */
102 #define FM801_AC97_READ         (1<<7)  /* read=1, write=0 */
103 #define FM801_AC97_VALID        (1<<8)  /* port valid=1 */
104 #define FM801_AC97_BUSY         (1<<9)  /* busy=1 */
105 #define FM801_AC97_ADDR_SHIFT   10      /* codec id (2bit) */
106
107 /* playback and record control register bits */
108 #define FM801_BUF1_LAST         (1<<1)
109 #define FM801_BUF2_LAST         (1<<2)
110 #define FM801_START             (1<<5)
111 #define FM801_PAUSE             (1<<6)
112 #define FM801_IMMED_STOP        (1<<7)
113 #define FM801_RATE_SHIFT        8
114 #define FM801_RATE_MASK         (15 << FM801_RATE_SHIFT)
115 #define FM801_CHANNELS_4        (1<<12) /* playback only */
116 #define FM801_CHANNELS_6        (2<<12) /* playback only */
117 #define FM801_CHANNELS_6MS      (3<<12) /* playback only */
118 #define FM801_CHANNELS_MASK     (3<<12)
119 #define FM801_16BIT             (1<<14)
120 #define FM801_STEREO            (1<<15)
121
122 /* IRQ status bits */
123 #define FM801_IRQ_PLAYBACK      (1<<8)
124 #define FM801_IRQ_CAPTURE       (1<<9)
125 #define FM801_IRQ_VOLUME        (1<<14)
126 #define FM801_IRQ_MPU           (1<<15)
127
128 /* GPIO control register */
129 #define FM801_GPIO_GP0          (1<<0)  /* read/write */
130 #define FM801_GPIO_GP1          (1<<1)
131 #define FM801_GPIO_GP2          (1<<2)
132 #define FM801_GPIO_GP3          (1<<3)
133 #define FM801_GPIO_GP(x)        (1<<(0+(x)))
134 #define FM801_GPIO_GD0          (1<<8)  /* directions: 1 = input, 0 = output*/
135 #define FM801_GPIO_GD1          (1<<9)
136 #define FM801_GPIO_GD2          (1<<10)
137 #define FM801_GPIO_GD3          (1<<11)
138 #define FM801_GPIO_GD(x)        (1<<(8+(x)))
139 #define FM801_GPIO_GS0          (1<<12) /* function select: */
140 #define FM801_GPIO_GS1          (1<<13) /*    1 = GPIO */
141 #define FM801_GPIO_GS2          (1<<14) /*    0 = other (S/PDIF, VOL) */
142 #define FM801_GPIO_GS3          (1<<15)
143 #define FM801_GPIO_GS(x)        (1<<(12+(x)))
144         
145 /**
146  * struct fm801 - describes FM801 chip
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  */
155 struct fm801 {
156         struct device *dev;
157         int irq;
158
159         unsigned long port;
160         unsigned int multichannel: 1,
161                      secondary: 1;
162         unsigned char secondary_addr;
163         unsigned int tea575x_tuner;
164
165         unsigned short ply_ctrl;
166         unsigned short cap_ctrl;
167
168         unsigned long ply_buffer;
169         unsigned int ply_buf;
170         unsigned int ply_count;
171         unsigned int ply_size;
172         unsigned int ply_pos;
173
174         unsigned long cap_buffer;
175         unsigned int cap_buf;
176         unsigned int cap_count;
177         unsigned int cap_size;
178         unsigned int cap_pos;
179
180         struct snd_ac97_bus *ac97_bus;
181         struct snd_ac97 *ac97;
182         struct snd_ac97 *ac97_sec;
183
184         struct snd_card *card;
185         struct snd_pcm *pcm;
186         struct snd_rawmidi *rmidi;
187         struct snd_pcm_substream *playback_substream;
188         struct snd_pcm_substream *capture_substream;
189         unsigned int p_dma_size;
190         unsigned int c_dma_size;
191
192         spinlock_t reg_lock;
193         struct snd_info_entry *proc_entry;
194
195 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
196         struct v4l2_device v4l2_dev;
197         struct snd_tea575x tea;
198 #endif
199
200 #ifdef CONFIG_PM_SLEEP
201         u16 saved_regs[0x20];
202 #endif
203 };
204
205 /*
206  * IO accessors
207  */
208
209 static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
210 {
211         outw(value, chip->port + offset);
212 }
213
214 static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
215 {
216         return inw(chip->port + offset);
217 }
218
219 static const struct pci_device_id snd_fm801_ids[] = {
220         { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
221         { 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
222         { 0, }
223 };
224
225 MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
226
227 /*
228  *  common I/O routines
229  */
230
231 static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
232 {
233         unsigned int idx;
234
235         for (idx = 0; idx < iterations; idx++) {
236                 if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
237                         return true;
238                 udelay(10);
239         }
240         return false;
241 }
242
243 static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
244 {
245         unsigned int idx;
246
247         for (idx = 0; idx < iterations; idx++) {
248                 if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
249                         return true;
250                 udelay(10);
251         }
252         return false;
253 }
254
255 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
256                                  unsigned short mask, unsigned short value)
257 {
258         int change;
259         unsigned long flags;
260         unsigned short old, new;
261
262         spin_lock_irqsave(&chip->reg_lock, flags);
263         old = fm801_ioread16(chip, reg);
264         new = (old & ~mask) | value;
265         change = old != new;
266         if (change)
267                 fm801_iowrite16(chip, reg, new);
268         spin_unlock_irqrestore(&chip->reg_lock, flags);
269         return change;
270 }
271
272 static void snd_fm801_codec_write(struct snd_ac97 *ac97,
273                                   unsigned short reg,
274                                   unsigned short val)
275 {
276         struct fm801 *chip = ac97->private_data;
277
278         /*
279          *  Wait until the codec interface is not ready..
280          */
281         if (!fm801_ac97_is_ready(chip, 100)) {
282                 dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
283                 return;
284         }
285
286         /* write data and address */
287         fm801_writew(chip, AC97_DATA, val);
288         fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
289         /*
290          *  Wait until the write command is not completed..
291          */
292         if (!fm801_ac97_is_ready(chip, 1000))
293                 dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
294                 ac97->num);
295 }
296
297 static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
298 {
299         struct fm801 *chip = ac97->private_data;
300
301         /*
302          *  Wait until the codec interface is not ready..
303          */
304         if (!fm801_ac97_is_ready(chip, 100)) {
305                 dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
306                 return 0;
307         }
308
309         /* read command */
310         fm801_writew(chip, AC97_CMD,
311                      reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
312         if (!fm801_ac97_is_ready(chip, 100)) {
313                 dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
314                         ac97->num);
315                 return 0;
316         }
317
318         if (!fm801_ac97_is_valid(chip, 1000)) {
319                 dev_err(chip->card->dev,
320                         "AC'97 interface #%d is not valid (2)\n", ac97->num);
321                 return 0;
322         }
323
324         return fm801_readw(chip, AC97_DATA);
325 }
326
327 static const unsigned int rates[] = {
328   5500,  8000,  9600, 11025,
329   16000, 19200, 22050, 32000,
330   38400, 44100, 48000
331 };
332
333 static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
334         .count = ARRAY_SIZE(rates),
335         .list = rates,
336         .mask = 0,
337 };
338
339 static const unsigned int channels[] = {
340   2, 4, 6
341 };
342
343 static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
344         .count = ARRAY_SIZE(channels),
345         .list = channels,
346         .mask = 0,
347 };
348
349 /*
350  *  Sample rate routines
351  */
352
353 static unsigned short snd_fm801_rate_bits(unsigned int rate)
354 {
355         unsigned int idx;
356
357         for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
358                 if (rates[idx] == rate)
359                         return idx;
360         snd_BUG();
361         return ARRAY_SIZE(rates) - 1;
362 }
363
364 /*
365  *  PCM part
366  */
367
368 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
369                                       int cmd)
370 {
371         struct fm801 *chip = snd_pcm_substream_chip(substream);
372
373         spin_lock(&chip->reg_lock);
374         switch (cmd) {
375         case SNDRV_PCM_TRIGGER_START:
376                 chip->ply_ctrl &= ~(FM801_BUF1_LAST |
377                                      FM801_BUF2_LAST |
378                                      FM801_PAUSE);
379                 chip->ply_ctrl |= FM801_START |
380                                    FM801_IMMED_STOP;
381                 break;
382         case SNDRV_PCM_TRIGGER_STOP:
383                 chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
384                 break;
385         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
386         case SNDRV_PCM_TRIGGER_SUSPEND:
387                 chip->ply_ctrl |= FM801_PAUSE;
388                 break;
389         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
390         case SNDRV_PCM_TRIGGER_RESUME:
391                 chip->ply_ctrl &= ~FM801_PAUSE;
392                 break;
393         default:
394                 spin_unlock(&chip->reg_lock);
395                 snd_BUG();
396                 return -EINVAL;
397         }
398         fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
399         spin_unlock(&chip->reg_lock);
400         return 0;
401 }
402
403 static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
404                                      int cmd)
405 {
406         struct fm801 *chip = snd_pcm_substream_chip(substream);
407
408         spin_lock(&chip->reg_lock);
409         switch (cmd) {
410         case SNDRV_PCM_TRIGGER_START:
411                 chip->cap_ctrl &= ~(FM801_BUF1_LAST |
412                                      FM801_BUF2_LAST |
413                                      FM801_PAUSE);
414                 chip->cap_ctrl |= FM801_START |
415                                    FM801_IMMED_STOP;
416                 break;
417         case SNDRV_PCM_TRIGGER_STOP:
418                 chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
419                 break;
420         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
421         case SNDRV_PCM_TRIGGER_SUSPEND:
422                 chip->cap_ctrl |= FM801_PAUSE;
423                 break;
424         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
425         case SNDRV_PCM_TRIGGER_RESUME:
426                 chip->cap_ctrl &= ~FM801_PAUSE;
427                 break;
428         default:
429                 spin_unlock(&chip->reg_lock);
430                 snd_BUG();
431                 return -EINVAL;
432         }
433         fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
434         spin_unlock(&chip->reg_lock);
435         return 0;
436 }
437
438 static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
439 {
440         struct fm801 *chip = snd_pcm_substream_chip(substream);
441         struct snd_pcm_runtime *runtime = substream->runtime;
442
443         chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
444         chip->ply_count = snd_pcm_lib_period_bytes(substream);
445         spin_lock_irq(&chip->reg_lock);
446         chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
447                              FM801_STEREO | FM801_RATE_MASK |
448                              FM801_CHANNELS_MASK);
449         if (snd_pcm_format_width(runtime->format) == 16)
450                 chip->ply_ctrl |= FM801_16BIT;
451         if (runtime->channels > 1) {
452                 chip->ply_ctrl |= FM801_STEREO;
453                 if (runtime->channels == 4)
454                         chip->ply_ctrl |= FM801_CHANNELS_4;
455                 else if (runtime->channels == 6)
456                         chip->ply_ctrl |= FM801_CHANNELS_6;
457         }
458         chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
459         chip->ply_buf = 0;
460         fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
461         fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
462         chip->ply_buffer = runtime->dma_addr;
463         chip->ply_pos = 0;
464         fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
465         fm801_writel(chip, PLY_BUF2,
466                      chip->ply_buffer + (chip->ply_count % chip->ply_size));
467         spin_unlock_irq(&chip->reg_lock);
468         return 0;
469 }
470
471 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
472 {
473         struct fm801 *chip = snd_pcm_substream_chip(substream);
474         struct snd_pcm_runtime *runtime = substream->runtime;
475
476         chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
477         chip->cap_count = snd_pcm_lib_period_bytes(substream);
478         spin_lock_irq(&chip->reg_lock);
479         chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
480                              FM801_STEREO | FM801_RATE_MASK);
481         if (snd_pcm_format_width(runtime->format) == 16)
482                 chip->cap_ctrl |= FM801_16BIT;
483         if (runtime->channels > 1)
484                 chip->cap_ctrl |= FM801_STEREO;
485         chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
486         chip->cap_buf = 0;
487         fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
488         fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
489         chip->cap_buffer = runtime->dma_addr;
490         chip->cap_pos = 0;
491         fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
492         fm801_writel(chip, CAP_BUF2,
493                      chip->cap_buffer + (chip->cap_count % chip->cap_size));
494         spin_unlock_irq(&chip->reg_lock);
495         return 0;
496 }
497
498 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
499 {
500         struct fm801 *chip = snd_pcm_substream_chip(substream);
501         size_t ptr;
502
503         if (!(chip->ply_ctrl & FM801_START))
504                 return 0;
505         spin_lock(&chip->reg_lock);
506         ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
507         if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
508                 ptr += chip->ply_count;
509                 ptr %= chip->ply_size;
510         }
511         spin_unlock(&chip->reg_lock);
512         return bytes_to_frames(substream->runtime, ptr);
513 }
514
515 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
516 {
517         struct fm801 *chip = snd_pcm_substream_chip(substream);
518         size_t ptr;
519
520         if (!(chip->cap_ctrl & FM801_START))
521                 return 0;
522         spin_lock(&chip->reg_lock);
523         ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
524         if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
525                 ptr += chip->cap_count;
526                 ptr %= chip->cap_size;
527         }
528         spin_unlock(&chip->reg_lock);
529         return bytes_to_frames(substream->runtime, ptr);
530 }
531
532 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
533 {
534         struct fm801 *chip = dev_id;
535         unsigned short status;
536         unsigned int tmp;
537
538         status = fm801_readw(chip, IRQ_STATUS);
539         status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
540         if (! status)
541                 return IRQ_NONE;
542         /* ack first */
543         fm801_writew(chip, IRQ_STATUS, status);
544         if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
545                 spin_lock(&chip->reg_lock);
546                 chip->ply_buf++;
547                 chip->ply_pos += chip->ply_count;
548                 chip->ply_pos %= chip->ply_size;
549                 tmp = chip->ply_pos + chip->ply_count;
550                 tmp %= chip->ply_size;
551                 if (chip->ply_buf & 1)
552                         fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
553                 else
554                         fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
555                 spin_unlock(&chip->reg_lock);
556                 snd_pcm_period_elapsed(chip->playback_substream);
557         }
558         if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
559                 spin_lock(&chip->reg_lock);
560                 chip->cap_buf++;
561                 chip->cap_pos += chip->cap_count;
562                 chip->cap_pos %= chip->cap_size;
563                 tmp = chip->cap_pos + chip->cap_count;
564                 tmp %= chip->cap_size;
565                 if (chip->cap_buf & 1)
566                         fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
567                 else
568                         fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
569                 spin_unlock(&chip->reg_lock);
570                 snd_pcm_period_elapsed(chip->capture_substream);
571         }
572         if (chip->rmidi && (status & FM801_IRQ_MPU))
573                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
574         if (status & FM801_IRQ_VOLUME) {
575                 /* TODO */
576         }
577
578         return IRQ_HANDLED;
579 }
580
581 static const struct snd_pcm_hardware snd_fm801_playback =
582 {
583         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
584                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
585                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
586                                  SNDRV_PCM_INFO_MMAP_VALID),
587         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
588         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
589         .rate_min =             5500,
590         .rate_max =             48000,
591         .channels_min =         1,
592         .channels_max =         2,
593         .buffer_bytes_max =     (128*1024),
594         .period_bytes_min =     64,
595         .period_bytes_max =     (128*1024),
596         .periods_min =          1,
597         .periods_max =          1024,
598         .fifo_size =            0,
599 };
600
601 static const struct snd_pcm_hardware snd_fm801_capture =
602 {
603         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
604                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
605                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
606                                  SNDRV_PCM_INFO_MMAP_VALID),
607         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
608         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
609         .rate_min =             5500,
610         .rate_max =             48000,
611         .channels_min =         1,
612         .channels_max =         2,
613         .buffer_bytes_max =     (128*1024),
614         .period_bytes_min =     64,
615         .period_bytes_max =     (128*1024),
616         .periods_min =          1,
617         .periods_max =          1024,
618         .fifo_size =            0,
619 };
620
621 static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
622 {
623         struct fm801 *chip = snd_pcm_substream_chip(substream);
624         struct snd_pcm_runtime *runtime = substream->runtime;
625         int err;
626
627         chip->playback_substream = substream;
628         runtime->hw = snd_fm801_playback;
629         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
630                                    &hw_constraints_rates);
631         if (chip->multichannel) {
632                 runtime->hw.channels_max = 6;
633                 snd_pcm_hw_constraint_list(runtime, 0,
634                                            SNDRV_PCM_HW_PARAM_CHANNELS,
635                                            &hw_constraints_channels);
636         }
637         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
638                 return err;
639         return 0;
640 }
641
642 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
643 {
644         struct fm801 *chip = snd_pcm_substream_chip(substream);
645         struct snd_pcm_runtime *runtime = substream->runtime;
646         int err;
647
648         chip->capture_substream = substream;
649         runtime->hw = snd_fm801_capture;
650         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
651                                    &hw_constraints_rates);
652         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
653                 return err;
654         return 0;
655 }
656
657 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
658 {
659         struct fm801 *chip = snd_pcm_substream_chip(substream);
660
661         chip->playback_substream = NULL;
662         return 0;
663 }
664
665 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
666 {
667         struct fm801 *chip = snd_pcm_substream_chip(substream);
668
669         chip->capture_substream = NULL;
670         return 0;
671 }
672
673 static const struct snd_pcm_ops snd_fm801_playback_ops = {
674         .open =         snd_fm801_playback_open,
675         .close =        snd_fm801_playback_close,
676         .prepare =      snd_fm801_playback_prepare,
677         .trigger =      snd_fm801_playback_trigger,
678         .pointer =      snd_fm801_playback_pointer,
679 };
680
681 static const struct snd_pcm_ops snd_fm801_capture_ops = {
682         .open =         snd_fm801_capture_open,
683         .close =        snd_fm801_capture_close,
684         .prepare =      snd_fm801_capture_prepare,
685         .trigger =      snd_fm801_capture_trigger,
686         .pointer =      snd_fm801_capture_pointer,
687 };
688
689 static int snd_fm801_pcm(struct fm801 *chip, int device)
690 {
691         struct pci_dev *pdev = to_pci_dev(chip->dev);
692         struct snd_pcm *pcm;
693         int err;
694
695         if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
696                 return err;
697
698         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
699         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
700
701         pcm->private_data = chip;
702         pcm->info_flags = 0;
703         strcpy(pcm->name, "FM801");
704         chip->pcm = pcm;
705
706         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &pdev->dev,
707                                        chip->multichannel ? 128*1024 : 64*1024, 128*1024);
708
709         return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
710                                      snd_pcm_alt_chmaps,
711                                      chip->multichannel ? 6 : 2, 0,
712                                      NULL);
713 }
714
715 /*
716  *  TEA5757 radio
717  */
718
719 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
720
721 /* GPIO to TEA575x maps */
722 struct snd_fm801_tea575x_gpio {
723         u8 data, clk, wren, most;
724         char *name;
725 };
726
727 static const struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
728         { .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
729         { .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
730         { .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
731 };
732
733 #define get_tea575x_gpio(chip) \
734         (&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
735
736 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
737 {
738         struct fm801 *chip = tea->private_data;
739         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
740         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
741
742         reg &= ~(FM801_GPIO_GP(gpio.data) |
743                  FM801_GPIO_GP(gpio.clk) |
744                  FM801_GPIO_GP(gpio.wren));
745
746         reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
747         reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
748         /* WRITE_ENABLE is inverted */
749         reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
750
751         fm801_writew(chip, GPIO_CTRL, reg);
752 }
753
754 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
755 {
756         struct fm801 *chip = tea->private_data;
757         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
758         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
759         u8 ret;
760
761         ret = 0;
762         if (reg & FM801_GPIO_GP(gpio.data))
763                 ret |= TEA575X_DATA;
764         if (reg & FM801_GPIO_GP(gpio.most))
765                 ret |= TEA575X_MOST;
766         return ret;
767 }
768
769 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
770 {
771         struct fm801 *chip = tea->private_data;
772         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
773         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
774
775         /* use GPIO lines and set write enable bit */
776         reg |= FM801_GPIO_GS(gpio.data) |
777                FM801_GPIO_GS(gpio.wren) |
778                FM801_GPIO_GS(gpio.clk) |
779                FM801_GPIO_GS(gpio.most);
780         if (output) {
781                 /* all of lines are in the write direction */
782                 /* clear data and clock lines */
783                 reg &= ~(FM801_GPIO_GD(gpio.data) |
784                          FM801_GPIO_GD(gpio.wren) |
785                          FM801_GPIO_GD(gpio.clk) |
786                          FM801_GPIO_GP(gpio.data) |
787                          FM801_GPIO_GP(gpio.clk) |
788                          FM801_GPIO_GP(gpio.wren));
789         } else {
790                 /* use GPIO lines, set data direction to input */
791                 reg |= FM801_GPIO_GD(gpio.data) |
792                        FM801_GPIO_GD(gpio.most) |
793                        FM801_GPIO_GP(gpio.data) |
794                        FM801_GPIO_GP(gpio.most) |
795                        FM801_GPIO_GP(gpio.wren);
796                 /* all of lines are in the write direction, except data */
797                 /* clear data, write enable and clock lines */
798                 reg &= ~(FM801_GPIO_GD(gpio.wren) |
799                          FM801_GPIO_GD(gpio.clk) |
800                          FM801_GPIO_GP(gpio.clk));
801         }
802
803         fm801_writew(chip, GPIO_CTRL, reg);
804 }
805
806 static const struct snd_tea575x_ops snd_fm801_tea_ops = {
807         .set_pins = snd_fm801_tea575x_set_pins,
808         .get_pins = snd_fm801_tea575x_get_pins,
809         .set_direction = snd_fm801_tea575x_set_direction,
810 };
811 #endif
812
813 /*
814  *  Mixer routines
815  */
816
817 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
818 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
819   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
820   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
821
822 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
823                                  struct snd_ctl_elem_info *uinfo)
824 {
825         int mask = (kcontrol->private_value >> 16) & 0xff;
826
827         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
828         uinfo->count = 1;
829         uinfo->value.integer.min = 0;
830         uinfo->value.integer.max = mask;
831         return 0;
832 }
833
834 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
835                                 struct snd_ctl_elem_value *ucontrol)
836 {
837         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
838         int reg = kcontrol->private_value & 0xff;
839         int shift = (kcontrol->private_value >> 8) & 0xff;
840         int mask = (kcontrol->private_value >> 16) & 0xff;
841         int invert = (kcontrol->private_value >> 24) & 0xff;
842         long *value = ucontrol->value.integer.value;
843
844         value[0] = (fm801_ioread16(chip, reg) >> shift) & mask;
845         if (invert)
846                 value[0] = mask - value[0];
847         return 0;
848 }
849
850 static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
851                                 struct snd_ctl_elem_value *ucontrol)
852 {
853         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
854         int reg = kcontrol->private_value & 0xff;
855         int shift = (kcontrol->private_value >> 8) & 0xff;
856         int mask = (kcontrol->private_value >> 16) & 0xff;
857         int invert = (kcontrol->private_value >> 24) & 0xff;
858         unsigned short val;
859
860         val = (ucontrol->value.integer.value[0] & mask);
861         if (invert)
862                 val = mask - val;
863         return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
864 }
865
866 #define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
867 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
868   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
869   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
870 #define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
871 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
872   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
873   .name = xname, .info = snd_fm801_info_double, \
874   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
875   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
876   .tlv = { .p = (xtlv) } }
877
878 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
879                                  struct snd_ctl_elem_info *uinfo)
880 {
881         int mask = (kcontrol->private_value >> 16) & 0xff;
882
883         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
884         uinfo->count = 2;
885         uinfo->value.integer.min = 0;
886         uinfo->value.integer.max = mask;
887         return 0;
888 }
889
890 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
891                                 struct snd_ctl_elem_value *ucontrol)
892 {
893         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
894         int reg = kcontrol->private_value & 0xff;
895         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
896         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
897         int mask = (kcontrol->private_value >> 16) & 0xff;
898         int invert = (kcontrol->private_value >> 24) & 0xff;
899         long *value = ucontrol->value.integer.value;
900
901         spin_lock_irq(&chip->reg_lock);
902         value[0] = (fm801_ioread16(chip, reg) >> shift_left) & mask;
903         value[1] = (fm801_ioread16(chip, reg) >> shift_right) & mask;
904         spin_unlock_irq(&chip->reg_lock);
905         if (invert) {
906                 value[0] = mask - value[0];
907                 value[1] = mask - value[1];
908         }
909         return 0;
910 }
911
912 static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
913                                 struct snd_ctl_elem_value *ucontrol)
914 {
915         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
916         int reg = kcontrol->private_value & 0xff;
917         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
918         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
919         int mask = (kcontrol->private_value >> 16) & 0xff;
920         int invert = (kcontrol->private_value >> 24) & 0xff;
921         unsigned short val1, val2;
922  
923         val1 = ucontrol->value.integer.value[0] & mask;
924         val2 = ucontrol->value.integer.value[1] & mask;
925         if (invert) {
926                 val1 = mask - val1;
927                 val2 = mask - val2;
928         }
929         return snd_fm801_update_bits(chip, reg,
930                                      (mask << shift_left) | (mask << shift_right),
931                                      (val1 << shift_left ) | (val2 << shift_right));
932 }
933
934 static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
935                               struct snd_ctl_elem_info *uinfo)
936 {
937         static const char * const texts[5] = {
938                 "AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
939         };
940  
941         return snd_ctl_enum_info(uinfo, 1, 5, texts);
942 }
943
944 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
945                              struct snd_ctl_elem_value *ucontrol)
946 {
947         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
948         unsigned short val;
949  
950         val = fm801_readw(chip, REC_SRC) & 7;
951         if (val > 4)
952                 val = 4;
953         ucontrol->value.enumerated.item[0] = val;
954         return 0;
955 }
956
957 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
958                              struct snd_ctl_elem_value *ucontrol)
959 {
960         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
961         unsigned short val;
962  
963         if ((val = ucontrol->value.enumerated.item[0]) > 4)
964                 return -EINVAL;
965         return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
966 }
967
968 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
969
970 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
971
972 static const struct snd_kcontrol_new snd_fm801_controls[] = {
973 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
974                  db_scale_dsp),
975 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
976 FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
977                  db_scale_dsp),
978 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
979 FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
980                  db_scale_dsp),
981 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
982 {
983         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
984         .name = "Digital Capture Source",
985         .info = snd_fm801_info_mux,
986         .get = snd_fm801_get_mux,
987         .put = snd_fm801_put_mux,
988 }
989 };
990
991 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
992
993 static const struct snd_kcontrol_new snd_fm801_controls_multi[] = {
994 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
995 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
996 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
997 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
998 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
999 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1000 };
1001
1002 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1003 {
1004         struct fm801 *chip = bus->private_data;
1005         chip->ac97_bus = NULL;
1006 }
1007
1008 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1009 {
1010         struct fm801 *chip = ac97->private_data;
1011         if (ac97->num == 0) {
1012                 chip->ac97 = NULL;
1013         } else {
1014                 chip->ac97_sec = NULL;
1015         }
1016 }
1017
1018 static int snd_fm801_mixer(struct fm801 *chip)
1019 {
1020         struct snd_ac97_template ac97;
1021         unsigned int i;
1022         int err;
1023         static const struct snd_ac97_bus_ops ops = {
1024                 .write = snd_fm801_codec_write,
1025                 .read = snd_fm801_codec_read,
1026         };
1027
1028         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1029                 return err;
1030         chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1031
1032         memset(&ac97, 0, sizeof(ac97));
1033         ac97.private_data = chip;
1034         ac97.private_free = snd_fm801_mixer_free_ac97;
1035         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1036                 return err;
1037         if (chip->secondary) {
1038                 ac97.num = 1;
1039                 ac97.addr = chip->secondary_addr;
1040                 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1041                         return err;
1042         }
1043         for (i = 0; i < FM801_CONTROLS; i++) {
1044                 err = snd_ctl_add(chip->card,
1045                         snd_ctl_new1(&snd_fm801_controls[i], chip));
1046                 if (err < 0)
1047                         return err;
1048         }
1049         if (chip->multichannel) {
1050                 for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1051                         err = snd_ctl_add(chip->card,
1052                                 snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1053                         if (err < 0)
1054                                 return err;
1055                 }
1056         }
1057         return 0;
1058 }
1059
1060 /*
1061  *  initialization routines
1062  */
1063
1064 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1065                           unsigned short reg, unsigned long waits)
1066 {
1067         unsigned long timeout = jiffies + waits;
1068
1069         fm801_writew(chip, AC97_CMD,
1070                      reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1071         udelay(5);
1072         do {
1073                 if ((fm801_readw(chip, AC97_CMD) &
1074                      (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1075                         return 0;
1076                 schedule_timeout_uninterruptible(1);
1077         } while (time_after(timeout, jiffies));
1078         return -EIO;
1079 }
1080
1081 static int reset_codec(struct fm801 *chip)
1082 {
1083         /* codec cold reset + AC'97 warm reset */
1084         fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1085         fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1086         udelay(100);
1087         fm801_writew(chip, CODEC_CTRL, 0);
1088
1089         return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1090 }
1091
1092 static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1093 {
1094         unsigned short cmdw;
1095
1096         if (chip->multichannel) {
1097                 if (chip->secondary_addr) {
1098                         wait_for_codec(chip, chip->secondary_addr,
1099                                        AC97_VENDOR_ID1, msecs_to_jiffies(50));
1100                 } else {
1101                         /* my card has the secondary codec */
1102                         /* at address #3, so the loop is inverted */
1103                         int i;
1104                         for (i = 3; i > 0; i--) {
1105                                 if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1106                                                      msecs_to_jiffies(50))) {
1107                                         cmdw = fm801_readw(chip, AC97_DATA);
1108                                         if (cmdw != 0xffff && cmdw != 0) {
1109                                                 chip->secondary = 1;
1110                                                 chip->secondary_addr = i;
1111                                                 break;
1112                                         }
1113                                 }
1114                         }
1115                 }
1116
1117                 /* the recovery phase, it seems that probing for non-existing codec might */
1118                 /* cause timeout problems */
1119                 wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1120         }
1121 }
1122
1123 static void snd_fm801_chip_init(struct fm801 *chip)
1124 {
1125         unsigned short cmdw;
1126
1127         /* init volume */
1128         fm801_writew(chip, PCM_VOL, 0x0808);
1129         fm801_writew(chip, FM_VOL, 0x9f1f);
1130         fm801_writew(chip, I2S_VOL, 0x8808);
1131
1132         /* I2S control - I2S mode */
1133         fm801_writew(chip, I2S_MODE, 0x0003);
1134
1135         /* interrupt setup */
1136         cmdw = fm801_readw(chip, IRQ_MASK);
1137         if (chip->irq < 0)
1138                 cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
1139         else
1140                 cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
1141         fm801_writew(chip, IRQ_MASK, cmdw);
1142
1143         /* interrupt clear */
1144         fm801_writew(chip, IRQ_STATUS,
1145                      FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1146 }
1147
1148 static int snd_fm801_free(struct fm801 *chip)
1149 {
1150         unsigned short cmdw;
1151
1152         if (chip->irq < 0)
1153                 goto __end_hw;
1154
1155         /* interrupt setup - mask everything */
1156         cmdw = fm801_readw(chip, IRQ_MASK);
1157         cmdw |= 0x00c3;
1158         fm801_writew(chip, IRQ_MASK, cmdw);
1159
1160         devm_free_irq(chip->dev, chip->irq, chip);
1161
1162       __end_hw:
1163 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1164         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1165                 snd_tea575x_exit(&chip->tea);
1166                 v4l2_device_unregister(&chip->v4l2_dev);
1167         }
1168 #endif
1169         return 0;
1170 }
1171
1172 static int snd_fm801_dev_free(struct snd_device *device)
1173 {
1174         struct fm801 *chip = device->device_data;
1175         return snd_fm801_free(chip);
1176 }
1177
1178 static int snd_fm801_create(struct snd_card *card,
1179                             struct pci_dev *pci,
1180                             int tea575x_tuner,
1181                             int radio_nr,
1182                             struct fm801 **rchip)
1183 {
1184         struct fm801 *chip;
1185         int err;
1186         static const struct snd_device_ops ops = {
1187                 .dev_free =     snd_fm801_dev_free,
1188         };
1189
1190         *rchip = NULL;
1191         if ((err = pcim_enable_device(pci)) < 0)
1192                 return err;
1193         chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1194         if (chip == NULL)
1195                 return -ENOMEM;
1196         spin_lock_init(&chip->reg_lock);
1197         chip->card = card;
1198         chip->dev = &pci->dev;
1199         chip->irq = -1;
1200         chip->tea575x_tuner = tea575x_tuner;
1201         if ((err = pci_request_regions(pci, "FM801")) < 0)
1202                 return err;
1203         chip->port = pci_resource_start(pci, 0);
1204
1205         if (pci->revision >= 0xb1)      /* FM801-AU */
1206                 chip->multichannel = 1;
1207
1208         if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1209                 if (reset_codec(chip) < 0) {
1210                         dev_info(chip->card->dev,
1211                                  "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1212                         chip->tea575x_tuner = 3 | TUNER_ONLY;
1213                 } else {
1214                         snd_fm801_chip_multichannel_init(chip);
1215                 }
1216         }
1217
1218         if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1219                 if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1220                                 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1221                         dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1222                         snd_fm801_free(chip);
1223                         return -EBUSY;
1224                 }
1225                 chip->irq = pci->irq;
1226                 card->sync_irq = chip->irq;
1227                 pci_set_master(pci);
1228         }
1229
1230         snd_fm801_chip_init(chip);
1231
1232         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1233                 snd_fm801_free(chip);
1234                 return err;
1235         }
1236
1237 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1238         err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1239         if (err < 0) {
1240                 snd_fm801_free(chip);
1241                 return err;
1242         }
1243         chip->tea.v4l2_dev = &chip->v4l2_dev;
1244         chip->tea.radio_nr = radio_nr;
1245         chip->tea.private_data = chip;
1246         chip->tea.ops = &snd_fm801_tea_ops;
1247         sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1248         if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1249             (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1250                 if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1251                         dev_err(card->dev, "TEA575x radio not found\n");
1252                         snd_fm801_free(chip);
1253                         return -ENODEV;
1254                 }
1255         } else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1256                 unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1257
1258                 /* autodetect tuner connection */
1259                 for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1260                         chip->tea575x_tuner = tea575x_tuner;
1261                         if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1262                                 dev_info(card->dev,
1263                                          "detected TEA575x radio type %s\n",
1264                                            get_tea575x_gpio(chip)->name);
1265                                 break;
1266                         }
1267                 }
1268                 if (tea575x_tuner == 4) {
1269                         dev_err(card->dev, "TEA575x radio not found\n");
1270                         chip->tea575x_tuner = TUNER_DISABLED;
1271                 }
1272
1273                 chip->tea575x_tuner |= tuner_only;
1274         }
1275         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1276                 strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1277                         sizeof(chip->tea.card));
1278         }
1279 #endif
1280
1281         *rchip = chip;
1282         return 0;
1283 }
1284
1285 static int snd_card_fm801_probe(struct pci_dev *pci,
1286                                 const struct pci_device_id *pci_id)
1287 {
1288         static int dev;
1289         struct snd_card *card;
1290         struct fm801 *chip;
1291         struct snd_opl3 *opl3;
1292         int err;
1293
1294         if (dev >= SNDRV_CARDS)
1295                 return -ENODEV;
1296         if (!enable[dev]) {
1297                 dev++;
1298                 return -ENOENT;
1299         }
1300
1301         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1302                            0, &card);
1303         if (err < 0)
1304                 return err;
1305         if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip)) < 0) {
1306                 snd_card_free(card);
1307                 return err;
1308         }
1309         card->private_data = chip;
1310
1311         strcpy(card->driver, "FM801");
1312         strcpy(card->shortname, "ForteMedia FM801-");
1313         strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1314         sprintf(card->longname, "%s at 0x%lx, irq %i",
1315                 card->shortname, chip->port, chip->irq);
1316
1317         if (chip->tea575x_tuner & TUNER_ONLY)
1318                 goto __fm801_tuner_only;
1319
1320         if ((err = snd_fm801_pcm(chip, 0)) < 0) {
1321                 snd_card_free(card);
1322                 return err;
1323         }
1324         if ((err = snd_fm801_mixer(chip)) < 0) {
1325                 snd_card_free(card);
1326                 return err;
1327         }
1328         if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1329                                        chip->port + FM801_MPU401_DATA,
1330                                        MPU401_INFO_INTEGRATED |
1331                                        MPU401_INFO_IRQ_HOOK,
1332                                        -1, &chip->rmidi)) < 0) {
1333                 snd_card_free(card);
1334                 return err;
1335         }
1336         if ((err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1337                                    chip->port + FM801_OPL3_BANK1,
1338                                    OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1339                 snd_card_free(card);
1340                 return err;
1341         }
1342         if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1343                 snd_card_free(card);
1344                 return err;
1345         }
1346
1347       __fm801_tuner_only:
1348         if ((err = snd_card_register(card)) < 0) {
1349                 snd_card_free(card);
1350                 return err;
1351         }
1352         pci_set_drvdata(pci, card);
1353         dev++;
1354         return 0;
1355 }
1356
1357 static void snd_card_fm801_remove(struct pci_dev *pci)
1358 {
1359         snd_card_free(pci_get_drvdata(pci));
1360 }
1361
1362 #ifdef CONFIG_PM_SLEEP
1363 static unsigned char saved_regs[] = {
1364         FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1365         FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1366         FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1367         FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1368 };
1369
1370 static int snd_fm801_suspend(struct device *dev)
1371 {
1372         struct snd_card *card = dev_get_drvdata(dev);
1373         struct fm801 *chip = card->private_data;
1374         int i;
1375
1376         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1377
1378         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1379                 chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1380
1381         if (chip->tea575x_tuner & TUNER_ONLY) {
1382                 /* FIXME: tea575x suspend */
1383         } else {
1384                 snd_ac97_suspend(chip->ac97);
1385                 snd_ac97_suspend(chip->ac97_sec);
1386         }
1387
1388         return 0;
1389 }
1390
1391 static int snd_fm801_resume(struct device *dev)
1392 {
1393         struct snd_card *card = dev_get_drvdata(dev);
1394         struct fm801 *chip = card->private_data;
1395         int i;
1396
1397         if (chip->tea575x_tuner & TUNER_ONLY) {
1398                 snd_fm801_chip_init(chip);
1399         } else {
1400                 reset_codec(chip);
1401                 snd_fm801_chip_multichannel_init(chip);
1402                 snd_fm801_chip_init(chip);
1403                 snd_ac97_resume(chip->ac97);
1404                 snd_ac97_resume(chip->ac97_sec);
1405         }
1406
1407         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1408                 fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1409
1410 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1411         if (!(chip->tea575x_tuner & TUNER_DISABLED))
1412                 snd_tea575x_set_freq(&chip->tea);
1413 #endif
1414
1415         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1416         return 0;
1417 }
1418
1419 static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1420 #define SND_FM801_PM_OPS        &snd_fm801_pm
1421 #else
1422 #define SND_FM801_PM_OPS        NULL
1423 #endif /* CONFIG_PM_SLEEP */
1424
1425 static struct pci_driver fm801_driver = {
1426         .name = KBUILD_MODNAME,
1427         .id_table = snd_fm801_ids,
1428         .probe = snd_card_fm801_probe,
1429         .remove = snd_card_fm801_remove,
1430         .driver = {
1431                 .pm = SND_FM801_PM_OPS,
1432         },
1433 };
1434
1435 module_pci_driver(fm801_driver);