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TOMOYO Linux Cross Reference
Linux/sound/pci/fm801.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *  The driver for the ForteMedia FM801 based soundcards
  4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  5  */
  6 
  7 #include <linux/delay.h>
  8 #include <linux/init.h>
  9 #include <linux/interrupt.h>
 10 #include <linux/io.h>
 11 #include <linux/pci.h>
 12 #include <linux/slab.h>
 13 #include <linux/module.h>
 14 #include <sound/core.h>
 15 #include <sound/pcm.h>
 16 #include <sound/tlv.h>
 17 #include <sound/ac97_codec.h>
 18 #include <sound/mpu401.h>
 19 #include <sound/opl3.h>
 20 #include <sound/initval.h>
 21 
 22 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
 23 #include <media/drv-intf/tea575x.h>
 24 #endif
 25 
 26 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 27 MODULE_DESCRIPTION("ForteMedia FM801");
 28 MODULE_LICENSE("GPL");
 29 
 30 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 31 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 32 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
 33 /*
 34  *  Enable TEA575x tuner
 35  *    1 = MediaForte 256-PCS
 36  *    2 = MediaForte 256-PCP
 37  *    3 = MediaForte 64-PCR
 38  *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
 39  *  High 16-bits are video (radio) device number + 1
 40  */
 41 static int tea575x_tuner[SNDRV_CARDS];
 42 static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
 43 
 44 module_param_array(index, int, NULL, 0444);
 45 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
 46 module_param_array(id, charp, NULL, 0444);
 47 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
 48 module_param_array(enable, bool, NULL, 0444);
 49 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
 50 module_param_array(tea575x_tuner, int, NULL, 0444);
 51 MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only).");
 52 module_param_array(radio_nr, int, NULL, 0444);
 53 MODULE_PARM_DESC(radio_nr, "Radio device numbers");
 54 
 55 
 56 #define TUNER_DISABLED          (1<<3)
 57 #define TUNER_ONLY              (1<<4)
 58 #define TUNER_TYPE_MASK         (~TUNER_ONLY & 0xFFFF)
 59 
 60 /*
 61  *  Direct registers
 62  */
 63 
 64 #define fm801_writew(chip,reg,value)    outw((value), chip->port + FM801_##reg)
 65 #define fm801_readw(chip,reg)           inw(chip->port + FM801_##reg)
 66 
 67 #define fm801_writel(chip,reg,value)    outl((value), chip->port + FM801_##reg)
 68 
 69 #define FM801_PCM_VOL           0x00    /* PCM Output Volume */
 70 #define FM801_FM_VOL            0x02    /* FM Output Volume */
 71 #define FM801_I2S_VOL           0x04    /* I2S Volume */
 72 #define FM801_REC_SRC           0x06    /* Record Source */
 73 #define FM801_PLY_CTRL          0x08    /* Playback Control */
 74 #define FM801_PLY_COUNT         0x0a    /* Playback Count */
 75 #define FM801_PLY_BUF1          0x0c    /* Playback Bufer I */
 76 #define FM801_PLY_BUF2          0x10    /* Playback Buffer II */
 77 #define FM801_CAP_CTRL          0x14    /* Capture Control */
 78 #define FM801_CAP_COUNT         0x16    /* Capture Count */
 79 #define FM801_CAP_BUF1          0x18    /* Capture Buffer I */
 80 #define FM801_CAP_BUF2          0x1c    /* Capture Buffer II */
 81 #define FM801_CODEC_CTRL        0x22    /* Codec Control */
 82 #define FM801_I2S_MODE          0x24    /* I2S Mode Control */
 83 #define FM801_VOLUME            0x26    /* Volume Up/Down/Mute Status */
 84 #define FM801_I2C_CTRL          0x29    /* I2C Control */
 85 #define FM801_AC97_CMD          0x2a    /* AC'97 Command */
 86 #define FM801_AC97_DATA         0x2c    /* AC'97 Data */
 87 #define FM801_MPU401_DATA       0x30    /* MPU401 Data */
 88 #define FM801_MPU401_CMD        0x31    /* MPU401 Command */
 89 #define FM801_GPIO_CTRL         0x52    /* General Purpose I/O Control */
 90 #define FM801_GEN_CTRL          0x54    /* General Control */
 91 #define FM801_IRQ_MASK          0x56    /* Interrupt Mask */
 92 #define FM801_IRQ_STATUS        0x5a    /* Interrupt Status */
 93 #define FM801_OPL3_BANK0        0x68    /* OPL3 Status Read / Bank 0 Write */
 94 #define FM801_OPL3_DATA0        0x69    /* OPL3 Data 0 Write */
 95 #define FM801_OPL3_BANK1        0x6a    /* OPL3 Bank 1 Write */
 96 #define FM801_OPL3_DATA1        0x6b    /* OPL3 Bank 1 Write */
 97 #define FM801_POWERDOWN         0x70    /* Blocks Power Down Control */
 98 
 99 /* codec access */
100 #define FM801_AC97_READ         (1<<7)  /* read=1, write=0 */
101 #define FM801_AC97_VALID        (1<<8)  /* port valid=1 */
102 #define FM801_AC97_BUSY         (1<<9)  /* busy=1 */
103 #define FM801_AC97_ADDR_SHIFT   10      /* codec id (2bit) */
104 
105 /* playback and record control register bits */
106 #define FM801_BUF1_LAST         (1<<1)
107 #define FM801_BUF2_LAST         (1<<2)
108 #define FM801_START             (1<<5)
109 #define FM801_PAUSE             (1<<6)
110 #define FM801_IMMED_STOP        (1<<7)
111 #define FM801_RATE_SHIFT        8
112 #define FM801_RATE_MASK         (15 << FM801_RATE_SHIFT)
113 #define FM801_CHANNELS_4        (1<<12) /* playback only */
114 #define FM801_CHANNELS_6        (2<<12) /* playback only */
115 #define FM801_CHANNELS_6MS      (3<<12) /* playback only */
116 #define FM801_CHANNELS_MASK     (3<<12)
117 #define FM801_16BIT             (1<<14)
118 #define FM801_STEREO            (1<<15)
119 
120 /* IRQ status bits */
121 #define FM801_IRQ_PLAYBACK      (1<<8)
122 #define FM801_IRQ_CAPTURE       (1<<9)
123 #define FM801_IRQ_VOLUME        (1<<14)
124 #define FM801_IRQ_MPU           (1<<15)
125 
126 /* GPIO control register */
127 #define FM801_GPIO_GP0          (1<<0)  /* read/write */
128 #define FM801_GPIO_GP1          (1<<1)
129 #define FM801_GPIO_GP2          (1<<2)
130 #define FM801_GPIO_GP3          (1<<3)
131 #define FM801_GPIO_GP(x)        (1<<(0+(x)))
132 #define FM801_GPIO_GD0          (1<<8)  /* directions: 1 = input, 0 = output*/
133 #define FM801_GPIO_GD1          (1<<9)
134 #define FM801_GPIO_GD2          (1<<10)
135 #define FM801_GPIO_GD3          (1<<11)
136 #define FM801_GPIO_GD(x)        (1<<(8+(x)))
137 #define FM801_GPIO_GS0          (1<<12) /* function select: */
138 #define FM801_GPIO_GS1          (1<<13) /*    1 = GPIO */
139 #define FM801_GPIO_GS2          (1<<14) /*    0 = other (S/PDIF, VOL) */
140 #define FM801_GPIO_GS3          (1<<15)
141 #define FM801_GPIO_GS(x)        (1<<(12+(x)))
142         
143 /**
144  * struct fm801 - describes FM801 chip
145  * @dev:                device for this chio
146  * @irq:                irq number
147  * @port:               I/O port number
148  * @multichannel:       multichannel support
149  * @secondary:          secondary codec
150  * @secondary_addr:     address of the secondary codec
151  * @tea575x_tuner:      tuner access method & flags
152  * @ply_ctrl:           playback control
153  * @cap_ctrl:           capture control
154  * @ply_buffer:         playback buffer
155  * @ply_buf:            playback buffer index
156  * @ply_count:          playback buffer count
157  * @ply_size:           playback buffer size
158  * @ply_pos:            playback position
159  * @cap_buffer:         capture buffer
160  * @cap_buf:            capture buffer index
161  * @cap_count:          capture buffer count
162  * @cap_size:           capture buffer size
163  * @cap_pos:            capture position
164  * @ac97_bus:           ac97 bus handle
165  * @ac97:               ac97 handle
166  * @ac97_sec:           ac97 secondary handle
167  * @card:               ALSA card
168  * @pcm:                PCM devices
169  * @rmidi:              rmidi device
170  * @playback_substream: substream for playback
171  * @capture_substream:  substream for capture
172  * @p_dma_size:         playback DMA size
173  * @c_dma_size:         capture DMA size
174  * @reg_lock:           lock
175  * @proc_entry:         /proc entry
176  * @v4l2_dev:           v4l2 device
177  * @tea:                tea575a structure
178  * @saved_regs:         context saved during suspend
179  */
180 struct fm801 {
181         struct device *dev;
182         int irq;
183 
184         unsigned long port;
185         unsigned int multichannel: 1,
186                      secondary: 1;
187         unsigned char secondary_addr;
188         unsigned int tea575x_tuner;
189 
190         unsigned short ply_ctrl;
191         unsigned short cap_ctrl;
192 
193         unsigned long ply_buffer;
194         unsigned int ply_buf;
195         unsigned int ply_count;
196         unsigned int ply_size;
197         unsigned int ply_pos;
198 
199         unsigned long cap_buffer;
200         unsigned int cap_buf;
201         unsigned int cap_count;
202         unsigned int cap_size;
203         unsigned int cap_pos;
204 
205         struct snd_ac97_bus *ac97_bus;
206         struct snd_ac97 *ac97;
207         struct snd_ac97 *ac97_sec;
208 
209         struct snd_card *card;
210         struct snd_pcm *pcm;
211         struct snd_rawmidi *rmidi;
212         struct snd_pcm_substream *playback_substream;
213         struct snd_pcm_substream *capture_substream;
214         unsigned int p_dma_size;
215         unsigned int c_dma_size;
216 
217         spinlock_t reg_lock;
218         struct snd_info_entry *proc_entry;
219 
220 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
221         struct v4l2_device v4l2_dev;
222         struct snd_tea575x tea;
223 #endif
224 
225 #ifdef CONFIG_PM_SLEEP
226         u16 saved_regs[0x20];
227 #endif
228 };
229 
230 /*
231  * IO accessors
232  */
233 
234 static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
235 {
236         outw(value, chip->port + offset);
237 }
238 
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 
256 static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
257 {
258         unsigned int idx;
259 
260         for (idx = 0; idx < iterations; idx++) {
261                 if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
262                         return true;
263                 udelay(10);
264         }
265         return false;
266 }
267 
268 static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
269 {
270         unsigned int idx;
271 
272         for (idx = 0; idx < iterations; idx++) {
273                 if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
274                         return true;
275                 udelay(10);
276         }
277         return false;
278 }
279 
280 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
281                                  unsigned short mask, unsigned short value)
282 {
283         int change;
284         unsigned long flags;
285         unsigned short old, new;
286 
287         spin_lock_irqsave(&chip->reg_lock, flags);
288         old = fm801_ioread16(chip, 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 
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 
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 
378 static unsigned short snd_fm801_rate_bits(unsigned int rate)
379 {
380         unsigned int idx;
381 
382         for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
383                 if (rates[idx] == rate)
384                         return idx;
385         snd_BUG();
386         return ARRAY_SIZE(rates) - 1;
387 }
388 
389 /*
390  *  PCM part
391  */
392 
393 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
394                                       int cmd)
395 {
396         struct fm801 *chip = snd_pcm_substream_chip(substream);
397 
398         spin_lock(&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 
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 
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 
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 
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 
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 
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 
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 
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 
684 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
685 {
686         struct fm801 *chip = snd_pcm_substream_chip(substream);
687 
688         chip->playback_substream = NULL;
689         return 0;
690 }
691 
692 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
693 {
694         struct fm801 *chip = snd_pcm_substream_chip(substream);
695 
696         chip->capture_substream = NULL;
697         return 0;
698 }
699 
700 static const struct snd_pcm_ops snd_fm801_playback_ops = {
701         .open =         snd_fm801_playback_open,
702         .close =        snd_fm801_playback_close,
703         .prepare =      snd_fm801_playback_prepare,
704         .trigger =      snd_fm801_playback_trigger,
705         .pointer =      snd_fm801_playback_pointer,
706 };
707 
708 static const struct snd_pcm_ops snd_fm801_capture_ops = {
709         .open =         snd_fm801_capture_open,
710         .close =        snd_fm801_capture_close,
711         .prepare =      snd_fm801_capture_prepare,
712         .trigger =      snd_fm801_capture_trigger,
713         .pointer =      snd_fm801_capture_pointer,
714 };
715 
716 static int snd_fm801_pcm(struct fm801 *chip, int device)
717 {
718         struct pci_dev *pdev = to_pci_dev(chip->dev);
719         struct snd_pcm *pcm;
720         int err;
721 
722         err = snd_pcm_new(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 
764 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
765 {
766         struct fm801 *chip = tea->private_data;
767         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
768         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
769 
770         reg &= ~(FM801_GPIO_GP(gpio.data) |
771                  FM801_GPIO_GP(gpio.clk) |
772                  FM801_GPIO_GP(gpio.wren));
773 
774         reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
775         reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
776         /* WRITE_ENABLE is inverted */
777         reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
778 
779         fm801_writew(chip, GPIO_CTRL, reg);
780 }
781 
782 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
783 {
784         struct fm801 *chip = tea->private_data;
785         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
786         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
787         u8 ret;
788 
789         ret = 0;
790         if (reg & FM801_GPIO_GP(gpio.data))
791                 ret |= TEA575X_DATA;
792         if (reg & FM801_GPIO_GP(gpio.most))
793                 ret |= TEA575X_MOST;
794         return ret;
795 }
796 
797 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
798 {
799         struct fm801 *chip = tea->private_data;
800         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
801         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
802 
803         /* use GPIO lines and set write enable bit */
804         reg |= FM801_GPIO_GS(gpio.data) |
805                FM801_GPIO_GS(gpio.wren) |
806                FM801_GPIO_GS(gpio.clk) |
807                FM801_GPIO_GS(gpio.most);
808         if (output) {
809                 /* all of lines are in the write direction */
810                 /* clear data and clock lines */
811                 reg &= ~(FM801_GPIO_GD(gpio.data) |
812                          FM801_GPIO_GD(gpio.wren) |
813                          FM801_GPIO_GD(gpio.clk) |
814                          FM801_GPIO_GP(gpio.data) |
815                          FM801_GPIO_GP(gpio.clk) |
816                          FM801_GPIO_GP(gpio.wren));
817         } else {
818                 /* use GPIO lines, set data direction to input */
819                 reg |= FM801_GPIO_GD(gpio.data) |
820                        FM801_GPIO_GD(gpio.most) |
821                        FM801_GPIO_GP(gpio.data) |
822                        FM801_GPIO_GP(gpio.most) |
823                        FM801_GPIO_GP(gpio.wren);
824                 /* all of lines are in the write direction, except data */
825                 /* clear data, write enable and clock lines */
826                 reg &= ~(FM801_GPIO_GD(gpio.wren) |
827                          FM801_GPIO_GD(gpio.clk) |
828                          FM801_GPIO_GP(gpio.clk));
829         }
830 
831         fm801_writew(chip, GPIO_CTRL, reg);
832 }
833 
834 static const struct snd_tea575x_ops snd_fm801_tea_ops = {
835         .set_pins = snd_fm801_tea575x_set_pins,
836         .get_pins = snd_fm801_tea575x_get_pins,
837         .set_direction = snd_fm801_tea575x_set_direction,
838 };
839 #endif
840 
841 /*
842  *  Mixer routines
843  */
844 
845 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
846 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
847   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
848   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
849 
850 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
851                                  struct snd_ctl_elem_info *uinfo)
852 {
853         int mask = (kcontrol->private_value >> 16) & 0xff;
854 
855         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
856         uinfo->count = 1;
857         uinfo->value.integer.min = 0;
858         uinfo->value.integer.max = mask;
859         return 0;
860 }
861 
862 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
863                                 struct snd_ctl_elem_value *ucontrol)
864 {
865         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
866         int reg = kcontrol->private_value & 0xff;
867         int shift = (kcontrol->private_value >> 8) & 0xff;
868         int mask = (kcontrol->private_value >> 16) & 0xff;
869         int invert = (kcontrol->private_value >> 24) & 0xff;
870         long *value = ucontrol->value.integer.value;
871 
872         value[0] = (fm801_ioread16(chip, reg) >> shift) & mask;
873         if (invert)
874                 value[0] = mask - value[0];
875         return 0;
876 }
877 
878 static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
879                                 struct snd_ctl_elem_value *ucontrol)
880 {
881         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
882         int reg = kcontrol->private_value & 0xff;
883         int shift = (kcontrol->private_value >> 8) & 0xff;
884         int mask = (kcontrol->private_value >> 16) & 0xff;
885         int invert = (kcontrol->private_value >> 24) & 0xff;
886         unsigned short val;
887 
888         val = (ucontrol->value.integer.value[0] & mask);
889         if (invert)
890                 val = mask - val;
891         return snd_fm801_update_bits(chip, reg, mask << 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 
906 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
907                                  struct snd_ctl_elem_info *uinfo)
908 {
909         int mask = (kcontrol->private_value >> 16) & 0xff;
910 
911         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
912         uinfo->count = 2;
913         uinfo->value.integer.min = 0;
914         uinfo->value.integer.max = mask;
915         return 0;
916 }
917 
918 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
919                                 struct snd_ctl_elem_value *ucontrol)
920 {
921         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
922         int reg = kcontrol->private_value & 0xff;
923         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
924         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
925         int mask = (kcontrol->private_value >> 16) & 0xff;
926         int invert = (kcontrol->private_value >> 24) & 0xff;
927         long *value = ucontrol->value.integer.value;
928 
929         spin_lock_irq(&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 
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 
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 
972 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
973                              struct snd_ctl_elem_value *ucontrol)
974 {
975         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
976         unsigned short val;
977  
978         val = fm801_readw(chip, REC_SRC) & 7;
979         if (val > 4)
980                 val = 4;
981         ucontrol->value.enumerated.item[0] = val;
982         return 0;
983 }
984 
985 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
986                              struct snd_ctl_elem_value *ucontrol)
987 {
988         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
989         unsigned short val;
990  
991         val = ucontrol->value.enumerated.item[0];
992         if (val > 4)
993                 return -EINVAL;
994         return snd_fm801_update_bits(chip, FM801_REC_SRC, 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 
1031 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1032 {
1033         struct fm801 *chip = bus->private_data;
1034         chip->ac97_bus = NULL;
1035 }
1036 
1037 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1038 {
1039         struct fm801 *chip = ac97->private_data;
1040         if (ac97->num == 0) {
1041                 chip->ac97 = NULL;
1042         } else {
1043                 chip->ac97_sec = NULL;
1044         }
1045 }
1046 
1047 static int snd_fm801_mixer(struct fm801 *chip)
1048 {
1049         struct snd_ac97_template ac97;
1050         unsigned int i;
1051         int err;
1052         static const struct snd_ac97_bus_ops ops = {
1053                 .write = snd_fm801_codec_write,
1054                 .read = snd_fm801_codec_read,
1055         };
1056 
1057         err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus);
1058         if (err < 0)
1059                 return err;
1060         chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1061 
1062         memset(&ac97, 0, sizeof(ac97));
1063         ac97.private_data = chip;
1064         ac97.private_free = snd_fm801_mixer_free_ac97;
1065         err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97);
1066         if (err < 0)
1067                 return err;
1068         if (chip->secondary) {
1069                 ac97.num = 1;
1070                 ac97.addr = chip->secondary_addr;
1071                 err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec);
1072                 if (err < 0)
1073                         return err;
1074         }
1075         for (i = 0; i < FM801_CONTROLS; i++) {
1076                 err = snd_ctl_add(chip->card,
1077                         snd_ctl_new1(&snd_fm801_controls[i], chip));
1078                 if (err < 0)
1079                         return err;
1080         }
1081         if (chip->multichannel) {
1082                 for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1083                         err = snd_ctl_add(chip->card,
1084                                 snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1085                         if (err < 0)
1086                                 return err;
1087                 }
1088         }
1089         return 0;
1090 }
1091 
1092 /*
1093  *  initialization routines
1094  */
1095 
1096 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1097                           unsigned short reg, unsigned long waits)
1098 {
1099         unsigned long timeout = jiffies + waits;
1100 
1101         fm801_writew(chip, AC97_CMD,
1102                      reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1103         udelay(5);
1104         do {
1105                 if ((fm801_readw(chip, AC97_CMD) &
1106                      (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1107                         return 0;
1108                 schedule_timeout_uninterruptible(1);
1109         } while (time_after(timeout, jiffies));
1110         return -EIO;
1111 }
1112 
1113 static int reset_codec(struct fm801 *chip)
1114 {
1115         /* codec cold reset + AC'97 warm reset */
1116         fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1117         fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1118         udelay(100);
1119         fm801_writew(chip, CODEC_CTRL, 0);
1120 
1121         return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1122 }
1123 
1124 static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1125 {
1126         unsigned short cmdw;
1127 
1128         if (chip->multichannel) {
1129                 if (chip->secondary_addr) {
1130                         wait_for_codec(chip, chip->secondary_addr,
1131                                        AC97_VENDOR_ID1, msecs_to_jiffies(50));
1132                 } else {
1133                         /* my card has the secondary codec */
1134                         /* at address #3, so the loop is inverted */
1135                         int i;
1136                         for (i = 3; i > 0; i--) {
1137                                 if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1138                                                      msecs_to_jiffies(50))) {
1139                                         cmdw = fm801_readw(chip, AC97_DATA);
1140                                         if (cmdw != 0xffff && cmdw != 0) {
1141                                                 chip->secondary = 1;
1142                                                 chip->secondary_addr = i;
1143                                                 break;
1144                                         }
1145                                 }
1146                         }
1147                 }
1148 
1149                 /* the recovery phase, it seems that probing for non-existing codec might */
1150                 /* cause timeout problems */
1151                 wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1152         }
1153 }
1154 
1155 static void snd_fm801_chip_init(struct fm801 *chip)
1156 {
1157         unsigned short cmdw;
1158 
1159         /* init volume */
1160         fm801_writew(chip, PCM_VOL, 0x0808);
1161         fm801_writew(chip, FM_VOL, 0x9f1f);
1162         fm801_writew(chip, I2S_VOL, 0x8808);
1163 
1164         /* I2S control - I2S mode */
1165         fm801_writew(chip, I2S_MODE, 0x0003);
1166 
1167         /* interrupt setup */
1168         cmdw = fm801_readw(chip, IRQ_MASK);
1169         if (chip->irq < 0)
1170                 cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
1171         else
1172                 cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
1173         fm801_writew(chip, IRQ_MASK, cmdw);
1174 
1175         /* interrupt clear */
1176         fm801_writew(chip, IRQ_STATUS,
1177                      FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1178 }
1179 
1180 static int snd_fm801_free(struct fm801 *chip)
1181 {
1182         unsigned short cmdw;
1183 
1184         if (chip->irq < 0)
1185                 goto __end_hw;
1186 
1187         /* interrupt setup - mask everything */
1188         cmdw = fm801_readw(chip, IRQ_MASK);
1189         cmdw |= 0x00c3;
1190         fm801_writew(chip, IRQ_MASK, cmdw);
1191 
1192         devm_free_irq(chip->dev, chip->irq, chip);
1193 
1194       __end_hw:
1195 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1196         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1197                 snd_tea575x_exit(&chip->tea);
1198                 v4l2_device_unregister(&chip->v4l2_dev);
1199         }
1200 #endif
1201         return 0;
1202 }
1203 
1204 static int snd_fm801_dev_free(struct snd_device *device)
1205 {
1206         struct fm801 *chip = device->device_data;
1207         return snd_fm801_free(chip);
1208 }
1209 
1210 static int snd_fm801_create(struct snd_card *card,
1211                             struct pci_dev *pci,
1212                             int tea575x_tuner,
1213                             int radio_nr,
1214                             struct fm801 **rchip)
1215 {
1216         struct fm801 *chip;
1217         int err;
1218         static const struct snd_device_ops ops = {
1219                 .dev_free =     snd_fm801_dev_free,
1220         };
1221 
1222         *rchip = NULL;
1223         err = pcim_enable_device(pci);
1224         if (err < 0)
1225                 return err;
1226         chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1227         if (chip == NULL)
1228                 return -ENOMEM;
1229         spin_lock_init(&chip->reg_lock);
1230         chip->card = card;
1231         chip->dev = &pci->dev;
1232         chip->irq = -1;
1233         chip->tea575x_tuner = tea575x_tuner;
1234         err = pci_request_regions(pci, "FM801");
1235         if (err < 0)
1236                 return err;
1237         chip->port = pci_resource_start(pci, 0);
1238 
1239         if (pci->revision >= 0xb1)      /* FM801-AU */
1240                 chip->multichannel = 1;
1241 
1242         if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1243                 if (reset_codec(chip) < 0) {
1244                         dev_info(chip->card->dev,
1245                                  "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1246                         chip->tea575x_tuner = 3 | TUNER_ONLY;
1247                 } else {
1248                         snd_fm801_chip_multichannel_init(chip);
1249                 }
1250         }
1251 
1252         if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1253                 if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1254                                 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1255                         dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1256                         snd_fm801_free(chip);
1257                         return -EBUSY;
1258                 }
1259                 chip->irq = pci->irq;
1260                 card->sync_irq = chip->irq;
1261                 pci_set_master(pci);
1262         }
1263 
1264         snd_fm801_chip_init(chip);
1265 
1266         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1267         if (err < 0) {
1268                 snd_fm801_free(chip);
1269                 return err;
1270         }
1271 
1272 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1273         err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1274         if (err < 0) {
1275                 snd_fm801_free(chip);
1276                 return err;
1277         }
1278         chip->tea.v4l2_dev = &chip->v4l2_dev;
1279         chip->tea.radio_nr = radio_nr;
1280         chip->tea.private_data = chip;
1281         chip->tea.ops = &snd_fm801_tea_ops;
1282         sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1283         if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1284             (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1285                 if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1286                         dev_err(card->dev, "TEA575x radio not found\n");
1287                         snd_fm801_free(chip);
1288                         return -ENODEV;
1289                 }
1290         } else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1291                 unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1292 
1293                 /* autodetect tuner connection */
1294                 for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1295                         chip->tea575x_tuner = tea575x_tuner;
1296                         if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1297                                 dev_info(card->dev,
1298                                          "detected TEA575x radio type %s\n",
1299                                            get_tea575x_gpio(chip)->name);
1300                                 break;
1301                         }
1302                 }
1303                 if (tea575x_tuner == 4) {
1304                         dev_err(card->dev, "TEA575x radio not found\n");
1305                         chip->tea575x_tuner = TUNER_DISABLED;
1306                 }
1307 
1308                 chip->tea575x_tuner |= tuner_only;
1309         }
1310         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1311                 strscpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1312                         sizeof(chip->tea.card));
1313         }
1314 #endif
1315 
1316         *rchip = chip;
1317         return 0;
1318 }
1319 
1320 static int snd_card_fm801_probe(struct pci_dev *pci,
1321                                 const struct pci_device_id *pci_id)
1322 {
1323         static int dev;
1324         struct snd_card *card;
1325         struct fm801 *chip;
1326         struct snd_opl3 *opl3;
1327         int err;
1328 
1329         if (dev >= SNDRV_CARDS)
1330                 return -ENODEV;
1331         if (!enable[dev]) {
1332                 dev++;
1333                 return -ENOENT;
1334         }
1335 
1336         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1337                            0, &card);
1338         if (err < 0)
1339                 return err;
1340         err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip);
1341         if (err < 0) {
1342                 snd_card_free(card);
1343                 return err;
1344         }
1345         card->private_data = chip;
1346 
1347         strcpy(card->driver, "FM801");
1348         strcpy(card->shortname, "ForteMedia FM801-");
1349         strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1350         sprintf(card->longname, "%s at 0x%lx, irq %i",
1351                 card->shortname, chip->port, chip->irq);
1352 
1353         if (chip->tea575x_tuner & TUNER_ONLY)
1354                 goto __fm801_tuner_only;
1355 
1356         err = snd_fm801_pcm(chip, 0);
1357         if (err < 0) {
1358                 snd_card_free(card);
1359                 return err;
1360         }
1361         err = snd_fm801_mixer(chip);
1362         if (err < 0) {
1363                 snd_card_free(card);
1364                 return err;
1365         }
1366         err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1367                                   chip->port + FM801_MPU401_DATA,
1368                                   MPU401_INFO_INTEGRATED |
1369                                   MPU401_INFO_IRQ_HOOK,
1370                                   -1, &chip->rmidi);
1371         if (err < 0) {
1372                 snd_card_free(card);
1373                 return err;
1374         }
1375         err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1376                               chip->port + FM801_OPL3_BANK1,
1377                               OPL3_HW_OPL3_FM801, 1, &opl3);
1378         if (err < 0) {
1379                 snd_card_free(card);
1380                 return err;
1381         }
1382         err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
1383         if (err < 0) {
1384                 snd_card_free(card);
1385                 return err;
1386         }
1387 
1388       __fm801_tuner_only:
1389         err = snd_card_register(card);
1390         if (err < 0) {
1391                 snd_card_free(card);
1392                 return err;
1393         }
1394         pci_set_drvdata(pci, card);
1395         dev++;
1396         return 0;
1397 }
1398 
1399 static void snd_card_fm801_remove(struct pci_dev *pci)
1400 {
1401         snd_card_free(pci_get_drvdata(pci));
1402 }
1403 
1404 #ifdef CONFIG_PM_SLEEP
1405 static const unsigned char saved_regs[] = {
1406         FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1407         FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1408         FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1409         FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1410 };
1411 
1412 static int snd_fm801_suspend(struct device *dev)
1413 {
1414         struct snd_card *card = dev_get_drvdata(dev);
1415         struct fm801 *chip = card->private_data;
1416         int i;
1417 
1418         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1419 
1420         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1421                 chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1422 
1423         if (chip->tea575x_tuner & TUNER_ONLY) {
1424                 /* FIXME: tea575x suspend */
1425         } else {
1426                 snd_ac97_suspend(chip->ac97);
1427                 snd_ac97_suspend(chip->ac97_sec);
1428         }
1429 
1430         return 0;
1431 }
1432 
1433 static int snd_fm801_resume(struct device *dev)
1434 {
1435         struct snd_card *card = dev_get_drvdata(dev);
1436         struct fm801 *chip = card->private_data;
1437         int i;
1438 
1439         if (chip->tea575x_tuner & TUNER_ONLY) {
1440                 snd_fm801_chip_init(chip);
1441         } else {
1442                 reset_codec(chip);
1443                 snd_fm801_chip_multichannel_init(chip);
1444                 snd_fm801_chip_init(chip);
1445                 snd_ac97_resume(chip->ac97);
1446                 snd_ac97_resume(chip->ac97_sec);
1447         }
1448 
1449         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1450                 fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1451 
1452 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1453         if (!(chip->tea575x_tuner & TUNER_DISABLED))
1454                 snd_tea575x_set_freq(&chip->tea);
1455 #endif
1456 
1457         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1458         return 0;
1459 }
1460 
1461 static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1462 #define SND_FM801_PM_OPS        &snd_fm801_pm
1463 #else
1464 #define SND_FM801_PM_OPS        NULL
1465 #endif /* CONFIG_PM_SLEEP */
1466 
1467 static struct pci_driver fm801_driver = {
1468         .name = KBUILD_MODNAME,
1469         .id_table = snd_fm801_ids,
1470         .probe = snd_card_fm801_probe,
1471         .remove = snd_card_fm801_remove,
1472         .driver = {
1473                 .pm = SND_FM801_PM_OPS,
1474         },
1475 };
1476 
1477 module_pci_driver(fm801_driver);
1478 

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