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Linux/sound/pci/fm801.c

  1 /*
  2  *  The driver for the ForteMedia FM801 based soundcards
  3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  4  *
  5  *   This program is free software; you can redistribute it and/or modify
  6  *   it under the terms of the GNU General Public License as published by
  7  *   the Free Software Foundation; either version 2 of the License, or
  8  *   (at your option) any later version.
  9  *
 10  *   This program is distributed in the hope that it will be useful,
 11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13  *   GNU General Public License for more details.
 14  *
 15  */
 16 
 17 #include <linux/delay.h>
 18 #include <linux/init.h>
 19 #include <linux/interrupt.h>
 20 #include <linux/io.h>
 21 #include <linux/pci.h>
 22 #include <linux/slab.h>
 23 #include <linux/module.h>
 24 #include <sound/core.h>
 25 #include <sound/pcm.h>
 26 #include <sound/tlv.h>
 27 #include <sound/ac97_codec.h>
 28 #include <sound/mpu401.h>
 29 #include <sound/opl3.h>
 30 #include <sound/initval.h>
 31 
 32 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
 33 #include <media/drv-intf/tea575x.h>
 34 #endif
 35 
 36 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 37 MODULE_DESCRIPTION("ForteMedia FM801");
 38 MODULE_LICENSE("GPL");
 39 MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
 40                 "{Genius,SoundMaker Live 5.1}}");
 41 
 42 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 43 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 44 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
 45 /*
 46  *  Enable TEA575x tuner
 47  *    1 = MediaForte 256-PCS
 48  *    2 = MediaForte 256-PCP
 49  *    3 = MediaForte 64-PCR
 50  *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
 51  *  High 16-bits are video (radio) device number + 1
 52  */
 53 static int tea575x_tuner[SNDRV_CARDS];
 54 static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
 55 
 56 module_param_array(index, int, NULL, 0444);
 57 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
 58 module_param_array(id, charp, NULL, 0444);
 59 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
 60 module_param_array(enable, bool, NULL, 0444);
 61 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
 62 module_param_array(tea575x_tuner, int, NULL, 0444);
 63 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).");
 64 module_param_array(radio_nr, int, NULL, 0444);
 65 MODULE_PARM_DESC(radio_nr, "Radio device numbers");
 66 
 67 
 68 #define TUNER_DISABLED          (1<<3)
 69 #define TUNER_ONLY              (1<<4)
 70 #define TUNER_TYPE_MASK         (~TUNER_ONLY & 0xFFFF)
 71 
 72 /*
 73  *  Direct registers
 74  */
 75 
 76 #define fm801_writew(chip,reg,value)    outw((value), chip->port + FM801_##reg)
 77 #define fm801_readw(chip,reg)           inw(chip->port + FM801_##reg)
 78 
 79 #define fm801_writel(chip,reg,value)    outl((value), chip->port + FM801_##reg)
 80 
 81 #define FM801_PCM_VOL           0x00    /* PCM Output Volume */
 82 #define FM801_FM_VOL            0x02    /* FM Output Volume */
 83 #define FM801_I2S_VOL           0x04    /* I2S Volume */
 84 #define FM801_REC_SRC           0x06    /* Record Source */
 85 #define FM801_PLY_CTRL          0x08    /* Playback Control */
 86 #define FM801_PLY_COUNT         0x0a    /* Playback Count */
 87 #define FM801_PLY_BUF1          0x0c    /* Playback Bufer I */
 88 #define FM801_PLY_BUF2          0x10    /* Playback Buffer II */
 89 #define FM801_CAP_CTRL          0x14    /* Capture Control */
 90 #define FM801_CAP_COUNT         0x16    /* Capture Count */
 91 #define FM801_CAP_BUF1          0x18    /* Capture Buffer I */
 92 #define FM801_CAP_BUF2          0x1c    /* Capture Buffer II */
 93 #define FM801_CODEC_CTRL        0x22    /* Codec Control */
 94 #define FM801_I2S_MODE          0x24    /* I2S Mode Control */
 95 #define FM801_VOLUME            0x26    /* Volume Up/Down/Mute Status */
 96 #define FM801_I2C_CTRL          0x29    /* I2C Control */
 97 #define FM801_AC97_CMD          0x2a    /* AC'97 Command */
 98 #define FM801_AC97_DATA         0x2c    /* AC'97 Data */
 99 #define FM801_MPU401_DATA       0x30    /* MPU401 Data */
100 #define FM801_MPU401_CMD        0x31    /* MPU401 Command */
101 #define FM801_GPIO_CTRL         0x52    /* General Purpose I/O Control */
102 #define FM801_GEN_CTRL          0x54    /* General Control */
103 #define FM801_IRQ_MASK          0x56    /* Interrupt Mask */
104 #define FM801_IRQ_STATUS        0x5a    /* Interrupt Status */
105 #define FM801_OPL3_BANK0        0x68    /* OPL3 Status Read / Bank 0 Write */
106 #define FM801_OPL3_DATA0        0x69    /* OPL3 Data 0 Write */
107 #define FM801_OPL3_BANK1        0x6a    /* OPL3 Bank 1 Write */
108 #define FM801_OPL3_DATA1        0x6b    /* OPL3 Bank 1 Write */
109 #define FM801_POWERDOWN         0x70    /* Blocks Power Down Control */
110 
111 /* codec access */
112 #define FM801_AC97_READ         (1<<7)  /* read=1, write=0 */
113 #define FM801_AC97_VALID        (1<<8)  /* port valid=1 */
114 #define FM801_AC97_BUSY         (1<<9)  /* busy=1 */
115 #define FM801_AC97_ADDR_SHIFT   10      /* codec id (2bit) */
116 
117 /* playback and record control register bits */
118 #define FM801_BUF1_LAST         (1<<1)
119 #define FM801_BUF2_LAST         (1<<2)
120 #define FM801_START             (1<<5)
121 #define FM801_PAUSE             (1<<6)
122 #define FM801_IMMED_STOP        (1<<7)
123 #define FM801_RATE_SHIFT        8
124 #define FM801_RATE_MASK         (15 << FM801_RATE_SHIFT)
125 #define FM801_CHANNELS_4        (1<<12) /* playback only */
126 #define FM801_CHANNELS_6        (2<<12) /* playback only */
127 #define FM801_CHANNELS_6MS      (3<<12) /* playback only */
128 #define FM801_CHANNELS_MASK     (3<<12)
129 #define FM801_16BIT             (1<<14)
130 #define FM801_STEREO            (1<<15)
131 
132 /* IRQ status bits */
133 #define FM801_IRQ_PLAYBACK      (1<<8)
134 #define FM801_IRQ_CAPTURE       (1<<9)
135 #define FM801_IRQ_VOLUME        (1<<14)
136 #define FM801_IRQ_MPU           (1<<15)
137 
138 /* GPIO control register */
139 #define FM801_GPIO_GP0          (1<<0)  /* read/write */
140 #define FM801_GPIO_GP1          (1<<1)
141 #define FM801_GPIO_GP2          (1<<2)
142 #define FM801_GPIO_GP3          (1<<3)
143 #define FM801_GPIO_GP(x)        (1<<(0+(x)))
144 #define FM801_GPIO_GD0          (1<<8)  /* directions: 1 = input, 0 = output*/
145 #define FM801_GPIO_GD1          (1<<9)
146 #define FM801_GPIO_GD2          (1<<10)
147 #define FM801_GPIO_GD3          (1<<11)
148 #define FM801_GPIO_GD(x)        (1<<(8+(x)))
149 #define FM801_GPIO_GS0          (1<<12) /* function select: */
150 #define FM801_GPIO_GS1          (1<<13) /*    1 = GPIO */
151 #define FM801_GPIO_GS2          (1<<14) /*    0 = other (S/PDIF, VOL) */
152 #define FM801_GPIO_GS3          (1<<15)
153 #define FM801_GPIO_GS(x)        (1<<(12+(x)))
154         
155 /**
156  * struct fm801 - describes FM801 chip
157  * @port:               I/O port number
158  * @multichannel:       multichannel support
159  * @secondary:          secondary codec
160  * @secondary_addr:     address of the secondary codec
161  * @tea575x_tuner:      tuner access method & flags
162  * @ply_ctrl:           playback control
163  * @cap_ctrl:           capture control
164  */
165 struct fm801 {
166         struct device *dev;
167         int irq;
168 
169         unsigned long port;
170         unsigned int multichannel: 1,
171                      secondary: 1;
172         unsigned char secondary_addr;
173         unsigned int tea575x_tuner;
174 
175         unsigned short ply_ctrl;
176         unsigned short cap_ctrl;
177 
178         unsigned long ply_buffer;
179         unsigned int ply_buf;
180         unsigned int ply_count;
181         unsigned int ply_size;
182         unsigned int ply_pos;
183 
184         unsigned long cap_buffer;
185         unsigned int cap_buf;
186         unsigned int cap_count;
187         unsigned int cap_size;
188         unsigned int cap_pos;
189 
190         struct snd_ac97_bus *ac97_bus;
191         struct snd_ac97 *ac97;
192         struct snd_ac97 *ac97_sec;
193 
194         struct snd_card *card;
195         struct snd_pcm *pcm;
196         struct snd_rawmidi *rmidi;
197         struct snd_pcm_substream *playback_substream;
198         struct snd_pcm_substream *capture_substream;
199         unsigned int p_dma_size;
200         unsigned int c_dma_size;
201 
202         spinlock_t reg_lock;
203         struct snd_info_entry *proc_entry;
204 
205 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
206         struct v4l2_device v4l2_dev;
207         struct snd_tea575x tea;
208 #endif
209 
210 #ifdef CONFIG_PM_SLEEP
211         u16 saved_regs[0x20];
212 #endif
213 };
214 
215 /*
216  * IO accessors
217  */
218 
219 static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
220 {
221         outw(value, chip->port + offset);
222 }
223 
224 static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
225 {
226         return inw(chip->port + offset);
227 }
228 
229 static const struct pci_device_id snd_fm801_ids[] = {
230         { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
231         { 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
232         { 0, }
233 };
234 
235 MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
236 
237 /*
238  *  common I/O routines
239  */
240 
241 static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
242 {
243         unsigned int idx;
244 
245         for (idx = 0; idx < iterations; idx++) {
246                 if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
247                         return true;
248                 udelay(10);
249         }
250         return false;
251 }
252 
253 static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
254 {
255         unsigned int idx;
256 
257         for (idx = 0; idx < iterations; idx++) {
258                 if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
259                         return true;
260                 udelay(10);
261         }
262         return false;
263 }
264 
265 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
266                                  unsigned short mask, unsigned short value)
267 {
268         int change;
269         unsigned long flags;
270         unsigned short old, new;
271 
272         spin_lock_irqsave(&chip->reg_lock, flags);
273         old = fm801_ioread16(chip, reg);
274         new = (old & ~mask) | value;
275         change = old != new;
276         if (change)
277                 fm801_iowrite16(chip, reg, new);
278         spin_unlock_irqrestore(&chip->reg_lock, flags);
279         return change;
280 }
281 
282 static void snd_fm801_codec_write(struct snd_ac97 *ac97,
283                                   unsigned short reg,
284                                   unsigned short val)
285 {
286         struct fm801 *chip = ac97->private_data;
287 
288         /*
289          *  Wait until the codec interface is not ready..
290          */
291         if (!fm801_ac97_is_ready(chip, 100)) {
292                 dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
293                 return;
294         }
295 
296         /* write data and address */
297         fm801_writew(chip, AC97_DATA, val);
298         fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
299         /*
300          *  Wait until the write command is not completed..
301          */
302         if (!fm801_ac97_is_ready(chip, 1000))
303                 dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
304                 ac97->num);
305 }
306 
307 static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
308 {
309         struct fm801 *chip = ac97->private_data;
310 
311         /*
312          *  Wait until the codec interface is not ready..
313          */
314         if (!fm801_ac97_is_ready(chip, 100)) {
315                 dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
316                 return 0;
317         }
318 
319         /* read command */
320         fm801_writew(chip, AC97_CMD,
321                      reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
322         if (!fm801_ac97_is_ready(chip, 100)) {
323                 dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
324                         ac97->num);
325                 return 0;
326         }
327 
328         if (!fm801_ac97_is_valid(chip, 1000)) {
329                 dev_err(chip->card->dev,
330                         "AC'97 interface #%d is not valid (2)\n", ac97->num);
331                 return 0;
332         }
333 
334         return fm801_readw(chip, AC97_DATA);
335 }
336 
337 static unsigned int rates[] = {
338   5500,  8000,  9600, 11025,
339   16000, 19200, 22050, 32000,
340   38400, 44100, 48000
341 };
342 
343 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
344         .count = ARRAY_SIZE(rates),
345         .list = rates,
346         .mask = 0,
347 };
348 
349 static unsigned int channels[] = {
350   2, 4, 6
351 };
352 
353 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
354         .count = ARRAY_SIZE(channels),
355         .list = channels,
356         .mask = 0,
357 };
358 
359 /*
360  *  Sample rate routines
361  */
362 
363 static unsigned short snd_fm801_rate_bits(unsigned int rate)
364 {
365         unsigned int idx;
366 
367         for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
368                 if (rates[idx] == rate)
369                         return idx;
370         snd_BUG();
371         return ARRAY_SIZE(rates) - 1;
372 }
373 
374 /*
375  *  PCM part
376  */
377 
378 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
379                                       int cmd)
380 {
381         struct fm801 *chip = snd_pcm_substream_chip(substream);
382 
383         spin_lock(&chip->reg_lock);
384         switch (cmd) {
385         case SNDRV_PCM_TRIGGER_START:
386                 chip->ply_ctrl &= ~(FM801_BUF1_LAST |
387                                      FM801_BUF2_LAST |
388                                      FM801_PAUSE);
389                 chip->ply_ctrl |= FM801_START |
390                                    FM801_IMMED_STOP;
391                 break;
392         case SNDRV_PCM_TRIGGER_STOP:
393                 chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
394                 break;
395         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
396         case SNDRV_PCM_TRIGGER_SUSPEND:
397                 chip->ply_ctrl |= FM801_PAUSE;
398                 break;
399         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
400         case SNDRV_PCM_TRIGGER_RESUME:
401                 chip->ply_ctrl &= ~FM801_PAUSE;
402                 break;
403         default:
404                 spin_unlock(&chip->reg_lock);
405                 snd_BUG();
406                 return -EINVAL;
407         }
408         fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
409         spin_unlock(&chip->reg_lock);
410         return 0;
411 }
412 
413 static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
414                                      int cmd)
415 {
416         struct fm801 *chip = snd_pcm_substream_chip(substream);
417 
418         spin_lock(&chip->reg_lock);
419         switch (cmd) {
420         case SNDRV_PCM_TRIGGER_START:
421                 chip->cap_ctrl &= ~(FM801_BUF1_LAST |
422                                      FM801_BUF2_LAST |
423                                      FM801_PAUSE);
424                 chip->cap_ctrl |= FM801_START |
425                                    FM801_IMMED_STOP;
426                 break;
427         case SNDRV_PCM_TRIGGER_STOP:
428                 chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
429                 break;
430         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
431         case SNDRV_PCM_TRIGGER_SUSPEND:
432                 chip->cap_ctrl |= FM801_PAUSE;
433                 break;
434         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
435         case SNDRV_PCM_TRIGGER_RESUME:
436                 chip->cap_ctrl &= ~FM801_PAUSE;
437                 break;
438         default:
439                 spin_unlock(&chip->reg_lock);
440                 snd_BUG();
441                 return -EINVAL;
442         }
443         fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
444         spin_unlock(&chip->reg_lock);
445         return 0;
446 }
447 
448 static int snd_fm801_hw_params(struct snd_pcm_substream *substream,
449                                struct snd_pcm_hw_params *hw_params)
450 {
451         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
452 }
453 
454 static int snd_fm801_hw_free(struct snd_pcm_substream *substream)
455 {
456         return snd_pcm_lib_free_pages(substream);
457 }
458 
459 static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
460 {
461         struct fm801 *chip = snd_pcm_substream_chip(substream);
462         struct snd_pcm_runtime *runtime = substream->runtime;
463 
464         chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
465         chip->ply_count = snd_pcm_lib_period_bytes(substream);
466         spin_lock_irq(&chip->reg_lock);
467         chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
468                              FM801_STEREO | FM801_RATE_MASK |
469                              FM801_CHANNELS_MASK);
470         if (snd_pcm_format_width(runtime->format) == 16)
471                 chip->ply_ctrl |= FM801_16BIT;
472         if (runtime->channels > 1) {
473                 chip->ply_ctrl |= FM801_STEREO;
474                 if (runtime->channels == 4)
475                         chip->ply_ctrl |= FM801_CHANNELS_4;
476                 else if (runtime->channels == 6)
477                         chip->ply_ctrl |= FM801_CHANNELS_6;
478         }
479         chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
480         chip->ply_buf = 0;
481         fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
482         fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
483         chip->ply_buffer = runtime->dma_addr;
484         chip->ply_pos = 0;
485         fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
486         fm801_writel(chip, PLY_BUF2,
487                      chip->ply_buffer + (chip->ply_count % chip->ply_size));
488         spin_unlock_irq(&chip->reg_lock);
489         return 0;
490 }
491 
492 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
493 {
494         struct fm801 *chip = snd_pcm_substream_chip(substream);
495         struct snd_pcm_runtime *runtime = substream->runtime;
496 
497         chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
498         chip->cap_count = snd_pcm_lib_period_bytes(substream);
499         spin_lock_irq(&chip->reg_lock);
500         chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
501                              FM801_STEREO | FM801_RATE_MASK);
502         if (snd_pcm_format_width(runtime->format) == 16)
503                 chip->cap_ctrl |= FM801_16BIT;
504         if (runtime->channels > 1)
505                 chip->cap_ctrl |= FM801_STEREO;
506         chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
507         chip->cap_buf = 0;
508         fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
509         fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
510         chip->cap_buffer = runtime->dma_addr;
511         chip->cap_pos = 0;
512         fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
513         fm801_writel(chip, CAP_BUF2,
514                      chip->cap_buffer + (chip->cap_count % chip->cap_size));
515         spin_unlock_irq(&chip->reg_lock);
516         return 0;
517 }
518 
519 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
520 {
521         struct fm801 *chip = snd_pcm_substream_chip(substream);
522         size_t ptr;
523 
524         if (!(chip->ply_ctrl & FM801_START))
525                 return 0;
526         spin_lock(&chip->reg_lock);
527         ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
528         if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
529                 ptr += chip->ply_count;
530                 ptr %= chip->ply_size;
531         }
532         spin_unlock(&chip->reg_lock);
533         return bytes_to_frames(substream->runtime, ptr);
534 }
535 
536 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
537 {
538         struct fm801 *chip = snd_pcm_substream_chip(substream);
539         size_t ptr;
540 
541         if (!(chip->cap_ctrl & FM801_START))
542                 return 0;
543         spin_lock(&chip->reg_lock);
544         ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
545         if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
546                 ptr += chip->cap_count;
547                 ptr %= chip->cap_size;
548         }
549         spin_unlock(&chip->reg_lock);
550         return bytes_to_frames(substream->runtime, ptr);
551 }
552 
553 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
554 {
555         struct fm801 *chip = dev_id;
556         unsigned short status;
557         unsigned int tmp;
558 
559         status = fm801_readw(chip, IRQ_STATUS);
560         status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
561         if (! status)
562                 return IRQ_NONE;
563         /* ack first */
564         fm801_writew(chip, IRQ_STATUS, status);
565         if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
566                 spin_lock(&chip->reg_lock);
567                 chip->ply_buf++;
568                 chip->ply_pos += chip->ply_count;
569                 chip->ply_pos %= chip->ply_size;
570                 tmp = chip->ply_pos + chip->ply_count;
571                 tmp %= chip->ply_size;
572                 if (chip->ply_buf & 1)
573                         fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
574                 else
575                         fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
576                 spin_unlock(&chip->reg_lock);
577                 snd_pcm_period_elapsed(chip->playback_substream);
578         }
579         if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
580                 spin_lock(&chip->reg_lock);
581                 chip->cap_buf++;
582                 chip->cap_pos += chip->cap_count;
583                 chip->cap_pos %= chip->cap_size;
584                 tmp = chip->cap_pos + chip->cap_count;
585                 tmp %= chip->cap_size;
586                 if (chip->cap_buf & 1)
587                         fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
588                 else
589                         fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
590                 spin_unlock(&chip->reg_lock);
591                 snd_pcm_period_elapsed(chip->capture_substream);
592         }
593         if (chip->rmidi && (status & FM801_IRQ_MPU))
594                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
595         if (status & FM801_IRQ_VOLUME) {
596                 /* TODO */
597         }
598 
599         return IRQ_HANDLED;
600 }
601 
602 static struct snd_pcm_hardware snd_fm801_playback =
603 {
604         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
605                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
606                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
607                                  SNDRV_PCM_INFO_MMAP_VALID),
608         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
609         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
610         .rate_min =             5500,
611         .rate_max =             48000,
612         .channels_min =         1,
613         .channels_max =         2,
614         .buffer_bytes_max =     (128*1024),
615         .period_bytes_min =     64,
616         .period_bytes_max =     (128*1024),
617         .periods_min =          1,
618         .periods_max =          1024,
619         .fifo_size =            0,
620 };
621 
622 static struct snd_pcm_hardware snd_fm801_capture =
623 {
624         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
625                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
626                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
627                                  SNDRV_PCM_INFO_MMAP_VALID),
628         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
629         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
630         .rate_min =             5500,
631         .rate_max =             48000,
632         .channels_min =         1,
633         .channels_max =         2,
634         .buffer_bytes_max =     (128*1024),
635         .period_bytes_min =     64,
636         .period_bytes_max =     (128*1024),
637         .periods_min =          1,
638         .periods_max =          1024,
639         .fifo_size =            0,
640 };
641 
642 static int snd_fm801_playback_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->playback_substream = substream;
649         runtime->hw = snd_fm801_playback;
650         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
651                                    &hw_constraints_rates);
652         if (chip->multichannel) {
653                 runtime->hw.channels_max = 6;
654                 snd_pcm_hw_constraint_list(runtime, 0,
655                                            SNDRV_PCM_HW_PARAM_CHANNELS,
656                                            &hw_constraints_channels);
657         }
658         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
659                 return err;
660         return 0;
661 }
662 
663 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
664 {
665         struct fm801 *chip = snd_pcm_substream_chip(substream);
666         struct snd_pcm_runtime *runtime = substream->runtime;
667         int err;
668 
669         chip->capture_substream = substream;
670         runtime->hw = snd_fm801_capture;
671         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
672                                    &hw_constraints_rates);
673         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
674                 return err;
675         return 0;
676 }
677 
678 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
679 {
680         struct fm801 *chip = snd_pcm_substream_chip(substream);
681 
682         chip->playback_substream = NULL;
683         return 0;
684 }
685 
686 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
687 {
688         struct fm801 *chip = snd_pcm_substream_chip(substream);
689 
690         chip->capture_substream = NULL;
691         return 0;
692 }
693 
694 static struct snd_pcm_ops snd_fm801_playback_ops = {
695         .open =         snd_fm801_playback_open,
696         .close =        snd_fm801_playback_close,
697         .ioctl =        snd_pcm_lib_ioctl,
698         .hw_params =    snd_fm801_hw_params,
699         .hw_free =      snd_fm801_hw_free,
700         .prepare =      snd_fm801_playback_prepare,
701         .trigger =      snd_fm801_playback_trigger,
702         .pointer =      snd_fm801_playback_pointer,
703 };
704 
705 static struct snd_pcm_ops snd_fm801_capture_ops = {
706         .open =         snd_fm801_capture_open,
707         .close =        snd_fm801_capture_close,
708         .ioctl =        snd_pcm_lib_ioctl,
709         .hw_params =    snd_fm801_hw_params,
710         .hw_free =      snd_fm801_hw_free,
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         if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
723                 return err;
724 
725         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
726         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
727 
728         pcm->private_data = chip;
729         pcm->info_flags = 0;
730         strcpy(pcm->name, "FM801");
731         chip->pcm = pcm;
732 
733         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
734                                               snd_dma_pci_data(pdev),
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 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         if ((val = ucontrol->value.enumerated.item[0]) > 4)
992                 return -EINVAL;
993         return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
994 }
995 
996 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
997 
998 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
999 
1000 static struct snd_kcontrol_new snd_fm801_controls[] = {
1001 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
1002                  db_scale_dsp),
1003 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
1004 FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
1005                  db_scale_dsp),
1006 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
1007 FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
1008                  db_scale_dsp),
1009 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
1010 {
1011         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1012         .name = "Digital Capture Source",
1013         .info = snd_fm801_info_mux,
1014         .get = snd_fm801_get_mux,
1015         .put = snd_fm801_put_mux,
1016 }
1017 };
1018 
1019 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
1020 
1021 static struct snd_kcontrol_new snd_fm801_controls_multi[] = {
1022 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
1023 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
1024 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
1025 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
1026 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
1027 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1028 };
1029 
1030 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1031 {
1032         struct fm801 *chip = bus->private_data;
1033         chip->ac97_bus = NULL;
1034 }
1035 
1036 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1037 {
1038         struct fm801 *chip = ac97->private_data;
1039         if (ac97->num == 0) {
1040                 chip->ac97 = NULL;
1041         } else {
1042                 chip->ac97_sec = NULL;
1043         }
1044 }
1045 
1046 static int snd_fm801_mixer(struct fm801 *chip)
1047 {
1048         struct snd_ac97_template ac97;
1049         unsigned int i;
1050         int err;
1051         static struct snd_ac97_bus_ops ops = {
1052                 .write = snd_fm801_codec_write,
1053                 .read = snd_fm801_codec_read,
1054         };
1055 
1056         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1057                 return err;
1058         chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1059 
1060         memset(&ac97, 0, sizeof(ac97));
1061         ac97.private_data = chip;
1062         ac97.private_free = snd_fm801_mixer_free_ac97;
1063         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1064                 return err;
1065         if (chip->secondary) {
1066                 ac97.num = 1;
1067                 ac97.addr = chip->secondary_addr;
1068                 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1069                         return err;
1070         }
1071         for (i = 0; i < FM801_CONTROLS; i++)
1072                 snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls[i], chip));
1073         if (chip->multichannel) {
1074                 for (i = 0; i < FM801_CONTROLS_MULTI; i++)
1075                         snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1076         }
1077         return 0;
1078 }
1079 
1080 /*
1081  *  initialization routines
1082  */
1083 
1084 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1085                           unsigned short reg, unsigned long waits)
1086 {
1087         unsigned long timeout = jiffies + waits;
1088 
1089         fm801_writew(chip, AC97_CMD,
1090                      reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1091         udelay(5);
1092         do {
1093                 if ((fm801_readw(chip, AC97_CMD) &
1094                      (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1095                         return 0;
1096                 schedule_timeout_uninterruptible(1);
1097         } while (time_after(timeout, jiffies));
1098         return -EIO;
1099 }
1100 
1101 static int reset_codec(struct fm801 *chip)
1102 {
1103         /* codec cold reset + AC'97 warm reset */
1104         fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1105         fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1106         udelay(100);
1107         fm801_writew(chip, CODEC_CTRL, 0);
1108 
1109         return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1110 }
1111 
1112 static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1113 {
1114         unsigned short cmdw;
1115 
1116         if (chip->multichannel) {
1117                 if (chip->secondary_addr) {
1118                         wait_for_codec(chip, chip->secondary_addr,
1119                                        AC97_VENDOR_ID1, msecs_to_jiffies(50));
1120                 } else {
1121                         /* my card has the secondary codec */
1122                         /* at address #3, so the loop is inverted */
1123                         int i;
1124                         for (i = 3; i > 0; i--) {
1125                                 if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1126                                                      msecs_to_jiffies(50))) {
1127                                         cmdw = fm801_readw(chip, AC97_DATA);
1128                                         if (cmdw != 0xffff && cmdw != 0) {
1129                                                 chip->secondary = 1;
1130                                                 chip->secondary_addr = i;
1131                                                 break;
1132                                         }
1133                                 }
1134                         }
1135                 }
1136 
1137                 /* the recovery phase, it seems that probing for non-existing codec might */
1138                 /* cause timeout problems */
1139                 wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1140         }
1141 }
1142 
1143 static void snd_fm801_chip_init(struct fm801 *chip)
1144 {
1145         unsigned short cmdw;
1146 
1147         /* init volume */
1148         fm801_writew(chip, PCM_VOL, 0x0808);
1149         fm801_writew(chip, FM_VOL, 0x9f1f);
1150         fm801_writew(chip, I2S_VOL, 0x8808);
1151 
1152         /* I2S control - I2S mode */
1153         fm801_writew(chip, I2S_MODE, 0x0003);
1154 
1155         /* interrupt setup */
1156         cmdw = fm801_readw(chip, IRQ_MASK);
1157         if (chip->irq < 0)
1158                 cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
1159         else
1160                 cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
1161         fm801_writew(chip, IRQ_MASK, cmdw);
1162 
1163         /* interrupt clear */
1164         fm801_writew(chip, IRQ_STATUS,
1165                      FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1166 }
1167 
1168 static int snd_fm801_free(struct fm801 *chip)
1169 {
1170         unsigned short cmdw;
1171 
1172         if (chip->irq < 0)
1173                 goto __end_hw;
1174 
1175         /* interrupt setup - mask everything */
1176         cmdw = fm801_readw(chip, IRQ_MASK);
1177         cmdw |= 0x00c3;
1178         fm801_writew(chip, IRQ_MASK, cmdw);
1179 
1180         devm_free_irq(chip->dev, chip->irq, chip);
1181 
1182       __end_hw:
1183 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1184         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1185                 snd_tea575x_exit(&chip->tea);
1186                 v4l2_device_unregister(&chip->v4l2_dev);
1187         }
1188 #endif
1189         return 0;
1190 }
1191 
1192 static int snd_fm801_dev_free(struct snd_device *device)
1193 {
1194         struct fm801 *chip = device->device_data;
1195         return snd_fm801_free(chip);
1196 }
1197 
1198 static int snd_fm801_create(struct snd_card *card,
1199                             struct pci_dev *pci,
1200                             int tea575x_tuner,
1201                             int radio_nr,
1202                             struct fm801 **rchip)
1203 {
1204         struct fm801 *chip;
1205         int err;
1206         static struct snd_device_ops ops = {
1207                 .dev_free =     snd_fm801_dev_free,
1208         };
1209 
1210         *rchip = NULL;
1211         if ((err = pcim_enable_device(pci)) < 0)
1212                 return err;
1213         chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1214         if (chip == NULL)
1215                 return -ENOMEM;
1216         spin_lock_init(&chip->reg_lock);
1217         chip->card = card;
1218         chip->dev = &pci->dev;
1219         chip->irq = -1;
1220         chip->tea575x_tuner = tea575x_tuner;
1221         if ((err = pci_request_regions(pci, "FM801")) < 0)
1222                 return err;
1223         chip->port = pci_resource_start(pci, 0);
1224 
1225         if (pci->revision >= 0xb1)      /* FM801-AU */
1226                 chip->multichannel = 1;
1227 
1228         if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1229                 if (reset_codec(chip) < 0) {
1230                         dev_info(chip->card->dev,
1231                                  "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1232                         chip->tea575x_tuner = 3 | TUNER_ONLY;
1233                 } else {
1234                         snd_fm801_chip_multichannel_init(chip);
1235                 }
1236         }
1237 
1238         snd_fm801_chip_init(chip);
1239 
1240         if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1241                 if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1242                                 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1243                         dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1244                         snd_fm801_free(chip);
1245                         return -EBUSY;
1246                 }
1247                 chip->irq = pci->irq;
1248                 pci_set_master(pci);
1249         }
1250 
1251         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1252                 snd_fm801_free(chip);
1253                 return err;
1254         }
1255 
1256 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1257         err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1258         if (err < 0) {
1259                 snd_fm801_free(chip);
1260                 return err;
1261         }
1262         chip->tea.v4l2_dev = &chip->v4l2_dev;
1263         chip->tea.radio_nr = radio_nr;
1264         chip->tea.private_data = chip;
1265         chip->tea.ops = &snd_fm801_tea_ops;
1266         sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1267         if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1268             (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1269                 if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1270                         dev_err(card->dev, "TEA575x radio not found\n");
1271                         snd_fm801_free(chip);
1272                         return -ENODEV;
1273                 }
1274         } else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1275                 unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1276 
1277                 /* autodetect tuner connection */
1278                 for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1279                         chip->tea575x_tuner = tea575x_tuner;
1280                         if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1281                                 dev_info(card->dev,
1282                                          "detected TEA575x radio type %s\n",
1283                                            get_tea575x_gpio(chip)->name);
1284                                 break;
1285                         }
1286                 }
1287                 if (tea575x_tuner == 4) {
1288                         dev_err(card->dev, "TEA575x radio not found\n");
1289                         chip->tea575x_tuner = TUNER_DISABLED;
1290                 }
1291 
1292                 chip->tea575x_tuner |= tuner_only;
1293         }
1294         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1295                 strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1296                         sizeof(chip->tea.card));
1297         }
1298 #endif
1299 
1300         *rchip = chip;
1301         return 0;
1302 }
1303 
1304 static int snd_card_fm801_probe(struct pci_dev *pci,
1305                                 const struct pci_device_id *pci_id)
1306 {
1307         static int dev;
1308         struct snd_card *card;
1309         struct fm801 *chip;
1310         struct snd_opl3 *opl3;
1311         int err;
1312 
1313         if (dev >= SNDRV_CARDS)
1314                 return -ENODEV;
1315         if (!enable[dev]) {
1316                 dev++;
1317                 return -ENOENT;
1318         }
1319 
1320         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1321                            0, &card);
1322         if (err < 0)
1323                 return err;
1324         if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip)) < 0) {
1325                 snd_card_free(card);
1326                 return err;
1327         }
1328         card->private_data = chip;
1329 
1330         strcpy(card->driver, "FM801");
1331         strcpy(card->shortname, "ForteMedia FM801-");
1332         strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1333         sprintf(card->longname, "%s at 0x%lx, irq %i",
1334                 card->shortname, chip->port, chip->irq);
1335 
1336         if (chip->tea575x_tuner & TUNER_ONLY)
1337                 goto __fm801_tuner_only;
1338 
1339         if ((err = snd_fm801_pcm(chip, 0)) < 0) {
1340                 snd_card_free(card);
1341                 return err;
1342         }
1343         if ((err = snd_fm801_mixer(chip)) < 0) {
1344                 snd_card_free(card);
1345                 return err;
1346         }
1347         if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1348                                        chip->port + FM801_MPU401_DATA,
1349                                        MPU401_INFO_INTEGRATED |
1350                                        MPU401_INFO_IRQ_HOOK,
1351                                        -1, &chip->rmidi)) < 0) {
1352                 snd_card_free(card);
1353                 return err;
1354         }
1355         if ((err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1356                                    chip->port + FM801_OPL3_BANK1,
1357                                    OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1358                 snd_card_free(card);
1359                 return err;
1360         }
1361         if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1362                 snd_card_free(card);
1363                 return err;
1364         }
1365 
1366       __fm801_tuner_only:
1367         if ((err = snd_card_register(card)) < 0) {
1368                 snd_card_free(card);
1369                 return err;
1370         }
1371         pci_set_drvdata(pci, card);
1372         dev++;
1373         return 0;
1374 }
1375 
1376 static void snd_card_fm801_remove(struct pci_dev *pci)
1377 {
1378         snd_card_free(pci_get_drvdata(pci));
1379 }
1380 
1381 #ifdef CONFIG_PM_SLEEP
1382 static unsigned char saved_regs[] = {
1383         FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1384         FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1385         FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1386         FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1387 };
1388 
1389 static int snd_fm801_suspend(struct device *dev)
1390 {
1391         struct snd_card *card = dev_get_drvdata(dev);
1392         struct fm801 *chip = card->private_data;
1393         int i;
1394 
1395         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1396 
1397         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1398                 chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1399 
1400         if (chip->tea575x_tuner & TUNER_ONLY) {
1401                 /* FIXME: tea575x suspend */
1402         } else {
1403                 snd_pcm_suspend_all(chip->pcm);
1404                 snd_ac97_suspend(chip->ac97);
1405                 snd_ac97_suspend(chip->ac97_sec);
1406         }
1407 
1408         return 0;
1409 }
1410 
1411 static int snd_fm801_resume(struct device *dev)
1412 {
1413         struct snd_card *card = dev_get_drvdata(dev);
1414         struct fm801 *chip = card->private_data;
1415         int i;
1416 
1417         if (chip->tea575x_tuner & TUNER_ONLY) {
1418                 snd_fm801_chip_init(chip);
1419         } else {
1420                 reset_codec(chip);
1421                 snd_fm801_chip_multichannel_init(chip);
1422                 snd_fm801_chip_init(chip);
1423                 snd_ac97_resume(chip->ac97);
1424                 snd_ac97_resume(chip->ac97_sec);
1425         }
1426 
1427         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1428                 fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1429 
1430 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1431         if (!(chip->tea575x_tuner & TUNER_DISABLED))
1432                 snd_tea575x_set_freq(&chip->tea);
1433 #endif
1434 
1435         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1436         return 0;
1437 }
1438 
1439 static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1440 #define SND_FM801_PM_OPS        &snd_fm801_pm
1441 #else
1442 #define SND_FM801_PM_OPS        NULL
1443 #endif /* CONFIG_PM_SLEEP */
1444 
1445 static struct pci_driver fm801_driver = {
1446         .name = KBUILD_MODNAME,
1447         .id_table = snd_fm801_ids,
1448         .probe = snd_card_fm801_probe,
1449         .remove = snd_card_fm801_remove,
1450         .driver = {
1451                 .pm = SND_FM801_PM_OPS,
1452         },
1453 };
1454 
1455 module_pci_driver(fm801_driver);
1456 

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