f9123f09e83e7922aa5a518081d8d711d231e9a9
[pandora-kernel.git] / 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  *  Support FM only card by Andy Shevchenko <andy@smile.org.ua>
6  *
7  *   This program is free software; you can redistribute it and/or modify
8  *   it under the terms of the GNU General Public License as published by
9  *   the Free Software Foundation; either version 2 of the License, or
10  *   (at your option) any later version.
11  *
12  *   This program is distributed in the hope that it will be useful,
13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *   GNU General Public License for more details.
16  *
17  *   You should have received a copy of the GNU General Public License
18  *   along with this program; if not, write to the Free Software
19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  *
21  */
22
23 #include <linux/delay.h>
24 #include <linux/init.h>
25 #include <linux/interrupt.h>
26 #include <linux/pci.h>
27 #include <linux/slab.h>
28 #include <linux/moduleparam.h>
29 #include <sound/core.h>
30 #include <sound/pcm.h>
31 #include <sound/tlv.h>
32 #include <sound/ac97_codec.h>
33 #include <sound/mpu401.h>
34 #include <sound/opl3.h>
35 #include <sound/initval.h>
36
37 #include <asm/io.h>
38
39 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
40 #include <sound/tea575x-tuner.h>
41 #endif
42
43 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
44 MODULE_DESCRIPTION("ForteMedia FM801");
45 MODULE_LICENSE("GPL");
46 MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
47                 "{Genius,SoundMaker Live 5.1}}");
48
49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
50 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
51 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
52 /*
53  *  Enable TEA575x tuner
54  *    1 = MediaForte 256-PCS
55  *    2 = MediaForte 256-PCP
56  *    3 = MediaForte 64-PCR
57  *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
58  *  High 16-bits are video (radio) device number + 1
59  */
60 static int tea575x_tuner[SNDRV_CARDS];
61
62 module_param_array(index, int, NULL, 0444);
63 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
64 module_param_array(id, charp, NULL, 0444);
65 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
66 module_param_array(enable, bool, NULL, 0444);
67 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
68 module_param_array(tea575x_tuner, int, NULL, 0444);
69 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).");
70
71 #define TUNER_ONLY              (1<<4)
72 #define TUNER_TYPE_MASK         (~TUNER_ONLY & 0xFFFF)
73
74 /*
75  *  Direct registers
76  */
77
78 #define FM801_REG(chip, reg)    (chip->port + FM801_##reg)
79
80 #define FM801_PCM_VOL           0x00    /* PCM Output Volume */
81 #define FM801_FM_VOL            0x02    /* FM Output Volume */
82 #define FM801_I2S_VOL           0x04    /* I2S Volume */
83 #define FM801_REC_SRC           0x06    /* Record Source */
84 #define FM801_PLY_CTRL          0x08    /* Playback Control */
85 #define FM801_PLY_COUNT         0x0a    /* Playback Count */
86 #define FM801_PLY_BUF1          0x0c    /* Playback Bufer I */
87 #define FM801_PLY_BUF2          0x10    /* Playback Buffer II */
88 #define FM801_CAP_CTRL          0x14    /* Capture Control */
89 #define FM801_CAP_COUNT         0x16    /* Capture Count */
90 #define FM801_CAP_BUF1          0x18    /* Capture Buffer I */
91 #define FM801_CAP_BUF2          0x1c    /* Capture Buffer II */
92 #define FM801_CODEC_CTRL        0x22    /* Codec Control */
93 #define FM801_I2S_MODE          0x24    /* I2S Mode Control */
94 #define FM801_VOLUME            0x26    /* Volume Up/Down/Mute Status */
95 #define FM801_I2C_CTRL          0x29    /* I2C Control */
96 #define FM801_AC97_CMD          0x2a    /* AC'97 Command */
97 #define FM801_AC97_DATA         0x2c    /* AC'97 Data */
98 #define FM801_MPU401_DATA       0x30    /* MPU401 Data */
99 #define FM801_MPU401_CMD        0x31    /* MPU401 Command */
100 #define FM801_GPIO_CTRL         0x52    /* General Purpose I/O Control */
101 #define FM801_GEN_CTRL          0x54    /* General Control */
102 #define FM801_IRQ_MASK          0x56    /* Interrupt Mask */
103 #define FM801_IRQ_STATUS        0x5a    /* Interrupt Status */
104 #define FM801_OPL3_BANK0        0x68    /* OPL3 Status Read / Bank 0 Write */
105 #define FM801_OPL3_DATA0        0x69    /* OPL3 Data 0 Write */
106 #define FM801_OPL3_BANK1        0x6a    /* OPL3 Bank 1 Write */
107 #define FM801_OPL3_DATA1        0x6b    /* OPL3 Bank 1 Write */
108 #define FM801_POWERDOWN         0x70    /* Blocks Power Down Control */
109
110 /* codec access */
111 #define FM801_AC97_READ         (1<<7)  /* read=1, write=0 */
112 #define FM801_AC97_VALID        (1<<8)  /* port valid=1 */
113 #define FM801_AC97_BUSY         (1<<9)  /* busy=1 */
114 #define FM801_AC97_ADDR_SHIFT   10      /* codec id (2bit) */
115
116 /* playback and record control register bits */
117 #define FM801_BUF1_LAST         (1<<1)
118 #define FM801_BUF2_LAST         (1<<2)
119 #define FM801_START             (1<<5)
120 #define FM801_PAUSE             (1<<6)
121 #define FM801_IMMED_STOP        (1<<7)
122 #define FM801_RATE_SHIFT        8
123 #define FM801_RATE_MASK         (15 << FM801_RATE_SHIFT)
124 #define FM801_CHANNELS_4        (1<<12) /* playback only */
125 #define FM801_CHANNELS_6        (2<<12) /* playback only */
126 #define FM801_CHANNELS_6MS      (3<<12) /* playback only */
127 #define FM801_CHANNELS_MASK     (3<<12)
128 #define FM801_16BIT             (1<<14)
129 #define FM801_STEREO            (1<<15)
130
131 /* IRQ status bits */
132 #define FM801_IRQ_PLAYBACK      (1<<8)
133 #define FM801_IRQ_CAPTURE       (1<<9)
134 #define FM801_IRQ_VOLUME        (1<<14)
135 #define FM801_IRQ_MPU           (1<<15)
136
137 /* GPIO control register */
138 #define FM801_GPIO_GP0          (1<<0)  /* read/write */
139 #define FM801_GPIO_GP1          (1<<1)
140 #define FM801_GPIO_GP2          (1<<2)
141 #define FM801_GPIO_GP3          (1<<3)
142 #define FM801_GPIO_GP(x)        (1<<(0+(x)))
143 #define FM801_GPIO_GD0          (1<<8)  /* directions: 1 = input, 0 = output*/
144 #define FM801_GPIO_GD1          (1<<9)
145 #define FM801_GPIO_GD2          (1<<10)
146 #define FM801_GPIO_GD3          (1<<11)
147 #define FM801_GPIO_GD(x)        (1<<(8+(x)))
148 #define FM801_GPIO_GS0          (1<<12) /* function select: */
149 #define FM801_GPIO_GS1          (1<<13) /*    1 = GPIO */
150 #define FM801_GPIO_GS2          (1<<14) /*    0 = other (S/PDIF, VOL) */
151 #define FM801_GPIO_GS3          (1<<15)
152 #define FM801_GPIO_GS(x)        (1<<(12+(x)))
153         
154 /*
155
156  */
157
158 struct fm801 {
159         int irq;
160
161         unsigned long port;     /* I/O port number */
162         unsigned int multichannel: 1,   /* multichannel support */
163                      secondary: 1;      /* secondary codec */
164         unsigned char secondary_addr;   /* address of the secondary codec */
165         unsigned int tea575x_tuner;     /* tuner access method & flags */
166
167         unsigned short ply_ctrl; /* playback control */
168         unsigned short cap_ctrl; /* capture control */
169
170         unsigned long ply_buffer;
171         unsigned int ply_buf;
172         unsigned int ply_count;
173         unsigned int ply_size;
174         unsigned int ply_pos;
175
176         unsigned long cap_buffer;
177         unsigned int cap_buf;
178         unsigned int cap_count;
179         unsigned int cap_size;
180         unsigned int cap_pos;
181
182         struct snd_ac97_bus *ac97_bus;
183         struct snd_ac97 *ac97;
184         struct snd_ac97 *ac97_sec;
185
186         struct pci_dev *pci;
187         struct snd_card *card;
188         struct snd_pcm *pcm;
189         struct snd_rawmidi *rmidi;
190         struct snd_pcm_substream *playback_substream;
191         struct snd_pcm_substream *capture_substream;
192         unsigned int p_dma_size;
193         unsigned int c_dma_size;
194
195         spinlock_t reg_lock;
196         struct snd_info_entry *proc_entry;
197
198 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
199         struct snd_tea575x tea;
200 #endif
201
202 #ifdef CONFIG_PM
203         u16 saved_regs[0x20];
204 #endif
205 };
206
207 static DEFINE_PCI_DEVICE_TABLE(snd_fm801_ids) = {
208         { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
209         { 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
210         { 0, }
211 };
212
213 MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
214
215 /*
216  *  common I/O routines
217  */
218
219 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
220                                  unsigned short mask, unsigned short value)
221 {
222         int change;
223         unsigned long flags;
224         unsigned short old, new;
225
226         spin_lock_irqsave(&chip->reg_lock, flags);
227         old = inw(chip->port + reg);
228         new = (old & ~mask) | value;
229         change = old != new;
230         if (change)
231                 outw(new, chip->port + reg);
232         spin_unlock_irqrestore(&chip->reg_lock, flags);
233         return change;
234 }
235
236 static void snd_fm801_codec_write(struct snd_ac97 *ac97,
237                                   unsigned short reg,
238                                   unsigned short val)
239 {
240         struct fm801 *chip = ac97->private_data;
241         int idx;
242
243         /*
244          *  Wait until the codec interface is not ready..
245          */
246         for (idx = 0; idx < 100; idx++) {
247                 if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
248                         goto ok1;
249                 udelay(10);
250         }
251         snd_printk(KERN_ERR "AC'97 interface is busy (1)\n");
252         return;
253
254  ok1:
255         /* write data and address */
256         outw(val, FM801_REG(chip, AC97_DATA));
257         outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT), FM801_REG(chip, AC97_CMD));
258         /*
259          *  Wait until the write command is not completed..
260          */
261         for (idx = 0; idx < 1000; idx++) {
262                 if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
263                         return;
264                 udelay(10);
265         }
266         snd_printk(KERN_ERR "AC'97 interface #%d is busy (2)\n", ac97->num);
267 }
268
269 static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
270 {
271         struct fm801 *chip = ac97->private_data;
272         int idx;
273
274         /*
275          *  Wait until the codec interface is not ready..
276          */
277         for (idx = 0; idx < 100; idx++) {
278                 if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
279                         goto ok1;
280                 udelay(10);
281         }
282         snd_printk(KERN_ERR "AC'97 interface is busy (1)\n");
283         return 0;
284
285  ok1:
286         /* read command */
287         outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ,
288              FM801_REG(chip, AC97_CMD));
289         for (idx = 0; idx < 100; idx++) {
290                 if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
291                         goto ok2;
292                 udelay(10);
293         }
294         snd_printk(KERN_ERR "AC'97 interface #%d is busy (2)\n", ac97->num);
295         return 0;
296
297  ok2:
298         for (idx = 0; idx < 1000; idx++) {
299                 if (inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_VALID)
300                         goto ok3;
301                 udelay(10);
302         }
303         snd_printk(KERN_ERR "AC'97 interface #%d is not valid (2)\n", ac97->num);
304         return 0;
305
306  ok3:
307         return inw(FM801_REG(chip, AC97_DATA));
308 }
309
310 static unsigned int rates[] = {
311   5500,  8000,  9600, 11025,
312   16000, 19200, 22050, 32000,
313   38400, 44100, 48000
314 };
315
316 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
317         .count = ARRAY_SIZE(rates),
318         .list = rates,
319         .mask = 0,
320 };
321
322 static unsigned int channels[] = {
323   2, 4, 6
324 };
325
326 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
327         .count = ARRAY_SIZE(channels),
328         .list = channels,
329         .mask = 0,
330 };
331
332 /*
333  *  Sample rate routines
334  */
335
336 static unsigned short snd_fm801_rate_bits(unsigned int rate)
337 {
338         unsigned int idx;
339
340         for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
341                 if (rates[idx] == rate)
342                         return idx;
343         snd_BUG();
344         return ARRAY_SIZE(rates) - 1;
345 }
346
347 /*
348  *  PCM part
349  */
350
351 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
352                                       int cmd)
353 {
354         struct fm801 *chip = snd_pcm_substream_chip(substream);
355
356         spin_lock(&chip->reg_lock);
357         switch (cmd) {
358         case SNDRV_PCM_TRIGGER_START:
359                 chip->ply_ctrl &= ~(FM801_BUF1_LAST |
360                                      FM801_BUF2_LAST |
361                                      FM801_PAUSE);
362                 chip->ply_ctrl |= FM801_START |
363                                    FM801_IMMED_STOP;
364                 break;
365         case SNDRV_PCM_TRIGGER_STOP:
366                 chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
367                 break;
368         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
369         case SNDRV_PCM_TRIGGER_SUSPEND:
370                 chip->ply_ctrl |= FM801_PAUSE;
371                 break;
372         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
373         case SNDRV_PCM_TRIGGER_RESUME:
374                 chip->ply_ctrl &= ~FM801_PAUSE;
375                 break;
376         default:
377                 spin_unlock(&chip->reg_lock);
378                 snd_BUG();
379                 return -EINVAL;
380         }
381         outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
382         spin_unlock(&chip->reg_lock);
383         return 0;
384 }
385
386 static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
387                                      int cmd)
388 {
389         struct fm801 *chip = snd_pcm_substream_chip(substream);
390
391         spin_lock(&chip->reg_lock);
392         switch (cmd) {
393         case SNDRV_PCM_TRIGGER_START:
394                 chip->cap_ctrl &= ~(FM801_BUF1_LAST |
395                                      FM801_BUF2_LAST |
396                                      FM801_PAUSE);
397                 chip->cap_ctrl |= FM801_START |
398                                    FM801_IMMED_STOP;
399                 break;
400         case SNDRV_PCM_TRIGGER_STOP:
401                 chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
402                 break;
403         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
404         case SNDRV_PCM_TRIGGER_SUSPEND:
405                 chip->cap_ctrl |= FM801_PAUSE;
406                 break;
407         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
408         case SNDRV_PCM_TRIGGER_RESUME:
409                 chip->cap_ctrl &= ~FM801_PAUSE;
410                 break;
411         default:
412                 spin_unlock(&chip->reg_lock);
413                 snd_BUG();
414                 return -EINVAL;
415         }
416         outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
417         spin_unlock(&chip->reg_lock);
418         return 0;
419 }
420
421 static int snd_fm801_hw_params(struct snd_pcm_substream *substream,
422                                struct snd_pcm_hw_params *hw_params)
423 {
424         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
425 }
426
427 static int snd_fm801_hw_free(struct snd_pcm_substream *substream)
428 {
429         return snd_pcm_lib_free_pages(substream);
430 }
431
432 static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
433 {
434         struct fm801 *chip = snd_pcm_substream_chip(substream);
435         struct snd_pcm_runtime *runtime = substream->runtime;
436
437         chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
438         chip->ply_count = snd_pcm_lib_period_bytes(substream);
439         spin_lock_irq(&chip->reg_lock);
440         chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
441                              FM801_STEREO | FM801_RATE_MASK |
442                              FM801_CHANNELS_MASK);
443         if (snd_pcm_format_width(runtime->format) == 16)
444                 chip->ply_ctrl |= FM801_16BIT;
445         if (runtime->channels > 1) {
446                 chip->ply_ctrl |= FM801_STEREO;
447                 if (runtime->channels == 4)
448                         chip->ply_ctrl |= FM801_CHANNELS_4;
449                 else if (runtime->channels == 6)
450                         chip->ply_ctrl |= FM801_CHANNELS_6;
451         }
452         chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
453         chip->ply_buf = 0;
454         outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
455         outw(chip->ply_count - 1, FM801_REG(chip, PLY_COUNT));
456         chip->ply_buffer = runtime->dma_addr;
457         chip->ply_pos = 0;
458         outl(chip->ply_buffer, FM801_REG(chip, PLY_BUF1));
459         outl(chip->ply_buffer + (chip->ply_count % chip->ply_size), FM801_REG(chip, PLY_BUF2));
460         spin_unlock_irq(&chip->reg_lock);
461         return 0;
462 }
463
464 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
465 {
466         struct fm801 *chip = snd_pcm_substream_chip(substream);
467         struct snd_pcm_runtime *runtime = substream->runtime;
468
469         chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
470         chip->cap_count = snd_pcm_lib_period_bytes(substream);
471         spin_lock_irq(&chip->reg_lock);
472         chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
473                              FM801_STEREO | FM801_RATE_MASK);
474         if (snd_pcm_format_width(runtime->format) == 16)
475                 chip->cap_ctrl |= FM801_16BIT;
476         if (runtime->channels > 1)
477                 chip->cap_ctrl |= FM801_STEREO;
478         chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
479         chip->cap_buf = 0;
480         outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
481         outw(chip->cap_count - 1, FM801_REG(chip, CAP_COUNT));
482         chip->cap_buffer = runtime->dma_addr;
483         chip->cap_pos = 0;
484         outl(chip->cap_buffer, FM801_REG(chip, CAP_BUF1));
485         outl(chip->cap_buffer + (chip->cap_count % chip->cap_size), FM801_REG(chip, CAP_BUF2));
486         spin_unlock_irq(&chip->reg_lock);
487         return 0;
488 }
489
490 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
491 {
492         struct fm801 *chip = snd_pcm_substream_chip(substream);
493         size_t ptr;
494
495         if (!(chip->ply_ctrl & FM801_START))
496                 return 0;
497         spin_lock(&chip->reg_lock);
498         ptr = chip->ply_pos + (chip->ply_count - 1) - inw(FM801_REG(chip, PLY_COUNT));
499         if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_PLAYBACK) {
500                 ptr += chip->ply_count;
501                 ptr %= chip->ply_size;
502         }
503         spin_unlock(&chip->reg_lock);
504         return bytes_to_frames(substream->runtime, ptr);
505 }
506
507 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
508 {
509         struct fm801 *chip = snd_pcm_substream_chip(substream);
510         size_t ptr;
511
512         if (!(chip->cap_ctrl & FM801_START))
513                 return 0;
514         spin_lock(&chip->reg_lock);
515         ptr = chip->cap_pos + (chip->cap_count - 1) - inw(FM801_REG(chip, CAP_COUNT));
516         if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_CAPTURE) {
517                 ptr += chip->cap_count;
518                 ptr %= chip->cap_size;
519         }
520         spin_unlock(&chip->reg_lock);
521         return bytes_to_frames(substream->runtime, ptr);
522 }
523
524 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
525 {
526         struct fm801 *chip = dev_id;
527         unsigned short status;
528         unsigned int tmp;
529
530         status = inw(FM801_REG(chip, IRQ_STATUS));
531         status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
532         if (! status)
533                 return IRQ_NONE;
534         /* ack first */
535         outw(status, FM801_REG(chip, IRQ_STATUS));
536         if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
537                 spin_lock(&chip->reg_lock);
538                 chip->ply_buf++;
539                 chip->ply_pos += chip->ply_count;
540                 chip->ply_pos %= chip->ply_size;
541                 tmp = chip->ply_pos + chip->ply_count;
542                 tmp %= chip->ply_size;
543                 outl(chip->ply_buffer + tmp,
544                                 (chip->ply_buf & 1) ?
545                                         FM801_REG(chip, PLY_BUF1) :
546                                         FM801_REG(chip, PLY_BUF2));
547                 spin_unlock(&chip->reg_lock);
548                 snd_pcm_period_elapsed(chip->playback_substream);
549         }
550         if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
551                 spin_lock(&chip->reg_lock);
552                 chip->cap_buf++;
553                 chip->cap_pos += chip->cap_count;
554                 chip->cap_pos %= chip->cap_size;
555                 tmp = chip->cap_pos + chip->cap_count;
556                 tmp %= chip->cap_size;
557                 outl(chip->cap_buffer + tmp,
558                                 (chip->cap_buf & 1) ?
559                                         FM801_REG(chip, CAP_BUF1) :
560                                         FM801_REG(chip, CAP_BUF2));
561                 spin_unlock(&chip->reg_lock);
562                 snd_pcm_period_elapsed(chip->capture_substream);
563         }
564         if (chip->rmidi && (status & FM801_IRQ_MPU))
565                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
566         if (status & FM801_IRQ_VOLUME)
567                 ;/* TODO */
568
569         return IRQ_HANDLED;
570 }
571
572 static struct snd_pcm_hardware snd_fm801_playback =
573 {
574         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
575                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
576                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
577                                  SNDRV_PCM_INFO_MMAP_VALID),
578         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
579         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
580         .rate_min =             5500,
581         .rate_max =             48000,
582         .channels_min =         1,
583         .channels_max =         2,
584         .buffer_bytes_max =     (128*1024),
585         .period_bytes_min =     64,
586         .period_bytes_max =     (128*1024),
587         .periods_min =          1,
588         .periods_max =          1024,
589         .fifo_size =            0,
590 };
591
592 static struct snd_pcm_hardware snd_fm801_capture =
593 {
594         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
595                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
596                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
597                                  SNDRV_PCM_INFO_MMAP_VALID),
598         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
599         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
600         .rate_min =             5500,
601         .rate_max =             48000,
602         .channels_min =         1,
603         .channels_max =         2,
604         .buffer_bytes_max =     (128*1024),
605         .period_bytes_min =     64,
606         .period_bytes_max =     (128*1024),
607         .periods_min =          1,
608         .periods_max =          1024,
609         .fifo_size =            0,
610 };
611
612 static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
613 {
614         struct fm801 *chip = snd_pcm_substream_chip(substream);
615         struct snd_pcm_runtime *runtime = substream->runtime;
616         int err;
617
618         chip->playback_substream = substream;
619         runtime->hw = snd_fm801_playback;
620         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
621                                    &hw_constraints_rates);
622         if (chip->multichannel) {
623                 runtime->hw.channels_max = 6;
624                 snd_pcm_hw_constraint_list(runtime, 0,
625                                            SNDRV_PCM_HW_PARAM_CHANNELS,
626                                            &hw_constraints_channels);
627         }
628         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
629                 return err;
630         return 0;
631 }
632
633 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
634 {
635         struct fm801 *chip = snd_pcm_substream_chip(substream);
636         struct snd_pcm_runtime *runtime = substream->runtime;
637         int err;
638
639         chip->capture_substream = substream;
640         runtime->hw = snd_fm801_capture;
641         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
642                                    &hw_constraints_rates);
643         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
644                 return err;
645         return 0;
646 }
647
648 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
649 {
650         struct fm801 *chip = snd_pcm_substream_chip(substream);
651
652         chip->playback_substream = NULL;
653         return 0;
654 }
655
656 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
657 {
658         struct fm801 *chip = snd_pcm_substream_chip(substream);
659
660         chip->capture_substream = NULL;
661         return 0;
662 }
663
664 static struct snd_pcm_ops snd_fm801_playback_ops = {
665         .open =         snd_fm801_playback_open,
666         .close =        snd_fm801_playback_close,
667         .ioctl =        snd_pcm_lib_ioctl,
668         .hw_params =    snd_fm801_hw_params,
669         .hw_free =      snd_fm801_hw_free,
670         .prepare =      snd_fm801_playback_prepare,
671         .trigger =      snd_fm801_playback_trigger,
672         .pointer =      snd_fm801_playback_pointer,
673 };
674
675 static struct snd_pcm_ops snd_fm801_capture_ops = {
676         .open =         snd_fm801_capture_open,
677         .close =        snd_fm801_capture_close,
678         .ioctl =        snd_pcm_lib_ioctl,
679         .hw_params =    snd_fm801_hw_params,
680         .hw_free =      snd_fm801_hw_free,
681         .prepare =      snd_fm801_capture_prepare,
682         .trigger =      snd_fm801_capture_trigger,
683         .pointer =      snd_fm801_capture_pointer,
684 };
685
686 static int __devinit snd_fm801_pcm(struct fm801 *chip, int device, struct snd_pcm ** rpcm)
687 {
688         struct snd_pcm *pcm;
689         int err;
690
691         if (rpcm)
692                 *rpcm = NULL;
693         if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
694                 return err;
695
696         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
697         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
698
699         pcm->private_data = chip;
700         pcm->info_flags = 0;
701         strcpy(pcm->name, "FM801");
702         chip->pcm = pcm;
703
704         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
705                                               snd_dma_pci_data(chip->pci),
706                                               chip->multichannel ? 128*1024 : 64*1024, 128*1024);
707
708         if (rpcm)
709                 *rpcm = pcm;
710         return 0;
711 }
712
713 /*
714  *  TEA5757 radio
715  */
716
717 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
718
719 /* GPIO to TEA575x maps */
720 struct snd_fm801_tea575x_gpio {
721         u8 data, clk, wren, most;
722         char *name;
723 };
724
725 static struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
726         { .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
727         { .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
728         { .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
729 };
730
731 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
732 {
733         struct fm801 *chip = tea->private_data;
734         unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
735         struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
736
737         reg &= ~(FM801_GPIO_GP(gpio.data) |
738                  FM801_GPIO_GP(gpio.clk) |
739                  FM801_GPIO_GP(gpio.wren));
740
741         reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
742         reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
743         /* WRITE_ENABLE is inverted */
744         reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
745
746         outw(reg, FM801_REG(chip, GPIO_CTRL));
747 }
748
749 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
750 {
751         struct fm801 *chip = tea->private_data;
752         unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
753         struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
754
755         return  (reg & FM801_GPIO_GP(gpio.data)) ? TEA575X_DATA : 0 |
756                 (reg & FM801_GPIO_GP(gpio.most)) ? TEA575X_MOST : 0;
757 }
758
759 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
760 {
761         struct fm801 *chip = tea->private_data;
762         unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
763         struct snd_fm801_tea575x_gpio gpio = snd_fm801_tea575x_gpios[(chip->tea575x_tuner & TUNER_TYPE_MASK) - 1];
764
765         /* use GPIO lines and set write enable bit */
766         reg |= FM801_GPIO_GS(gpio.data) |
767                FM801_GPIO_GS(gpio.wren) |
768                FM801_GPIO_GS(gpio.clk) |
769                FM801_GPIO_GS(gpio.most);
770         if (output) {
771                 /* all of lines are in the write direction */
772                 /* clear data and clock lines */
773                 reg &= ~(FM801_GPIO_GD(gpio.data) |
774                          FM801_GPIO_GD(gpio.wren) |
775                          FM801_GPIO_GD(gpio.clk) |
776                          FM801_GPIO_GP(gpio.data) |
777                          FM801_GPIO_GP(gpio.clk) |
778                          FM801_GPIO_GP(gpio.wren));
779         } else {
780                 /* use GPIO lines, set data direction to input */
781                 reg |= FM801_GPIO_GD(gpio.data) |
782                        FM801_GPIO_GD(gpio.most) |
783                        FM801_GPIO_GP(gpio.data) |
784                        FM801_GPIO_GP(gpio.most) |
785                        FM801_GPIO_GP(gpio.wren);
786                 /* all of lines are in the write direction, except data */
787                 /* clear data, write enable and clock lines */
788                 reg &= ~(FM801_GPIO_GD(gpio.wren) |
789                          FM801_GPIO_GD(gpio.clk) |
790                          FM801_GPIO_GP(gpio.clk));
791         }
792
793         outw(reg, FM801_REG(chip, GPIO_CTRL));
794 }
795
796 static struct snd_tea575x_ops snd_fm801_tea_ops = {
797         .set_pins = snd_fm801_tea575x_set_pins,
798         .get_pins = snd_fm801_tea575x_get_pins,
799         .set_direction = snd_fm801_tea575x_set_direction,
800 };
801 #endif
802
803 /*
804  *  Mixer routines
805  */
806
807 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
808 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
809   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
810   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
811
812 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
813                                  struct snd_ctl_elem_info *uinfo)
814 {
815         int mask = (kcontrol->private_value >> 16) & 0xff;
816
817         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
818         uinfo->count = 1;
819         uinfo->value.integer.min = 0;
820         uinfo->value.integer.max = mask;
821         return 0;
822 }
823
824 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
825                                 struct snd_ctl_elem_value *ucontrol)
826 {
827         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
828         int reg = kcontrol->private_value & 0xff;
829         int shift = (kcontrol->private_value >> 8) & 0xff;
830         int mask = (kcontrol->private_value >> 16) & 0xff;
831         int invert = (kcontrol->private_value >> 24) & 0xff;
832
833         ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift) & mask;
834         if (invert)
835                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
836         return 0;
837 }
838
839 static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
840                                 struct snd_ctl_elem_value *ucontrol)
841 {
842         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
843         int reg = kcontrol->private_value & 0xff;
844         int shift = (kcontrol->private_value >> 8) & 0xff;
845         int mask = (kcontrol->private_value >> 16) & 0xff;
846         int invert = (kcontrol->private_value >> 24) & 0xff;
847         unsigned short val;
848
849         val = (ucontrol->value.integer.value[0] & mask);
850         if (invert)
851                 val = mask - val;
852         return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
853 }
854
855 #define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
856 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
857   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
858   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
859 #define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
860 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
861   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
862   .name = xname, .info = snd_fm801_info_double, \
863   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
864   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
865   .tlv = { .p = (xtlv) } }
866
867 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
868                                  struct snd_ctl_elem_info *uinfo)
869 {
870         int mask = (kcontrol->private_value >> 16) & 0xff;
871
872         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
873         uinfo->count = 2;
874         uinfo->value.integer.min = 0;
875         uinfo->value.integer.max = mask;
876         return 0;
877 }
878
879 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
880                                 struct snd_ctl_elem_value *ucontrol)
881 {
882         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
883         int reg = kcontrol->private_value & 0xff;
884         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
885         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
886         int mask = (kcontrol->private_value >> 16) & 0xff;
887         int invert = (kcontrol->private_value >> 24) & 0xff;
888
889         spin_lock_irq(&chip->reg_lock);
890         ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift_left) & mask;
891         ucontrol->value.integer.value[1] = (inw(chip->port + reg) >> shift_right) & mask;
892         spin_unlock_irq(&chip->reg_lock);
893         if (invert) {
894                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
895                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
896         }
897         return 0;
898 }
899
900 static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
901                                 struct snd_ctl_elem_value *ucontrol)
902 {
903         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
904         int reg = kcontrol->private_value & 0xff;
905         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
906         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
907         int mask = (kcontrol->private_value >> 16) & 0xff;
908         int invert = (kcontrol->private_value >> 24) & 0xff;
909         unsigned short val1, val2;
910  
911         val1 = ucontrol->value.integer.value[0] & mask;
912         val2 = ucontrol->value.integer.value[1] & mask;
913         if (invert) {
914                 val1 = mask - val1;
915                 val2 = mask - val2;
916         }
917         return snd_fm801_update_bits(chip, reg,
918                                      (mask << shift_left) | (mask << shift_right),
919                                      (val1 << shift_left ) | (val2 << shift_right));
920 }
921
922 static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
923                               struct snd_ctl_elem_info *uinfo)
924 {
925         static char *texts[5] = {
926                 "AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
927         };
928  
929         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
930         uinfo->count = 1;
931         uinfo->value.enumerated.items = 5;
932         if (uinfo->value.enumerated.item > 4)
933                 uinfo->value.enumerated.item = 4;
934         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
935         return 0;
936 }
937
938 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
939                              struct snd_ctl_elem_value *ucontrol)
940 {
941         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
942         unsigned short val;
943  
944         val = inw(FM801_REG(chip, REC_SRC)) & 7;
945         if (val > 4)
946                 val = 4;
947         ucontrol->value.enumerated.item[0] = val;
948         return 0;
949 }
950
951 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
952                              struct snd_ctl_elem_value *ucontrol)
953 {
954         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
955         unsigned short val;
956  
957         if ((val = ucontrol->value.enumerated.item[0]) > 4)
958                 return -EINVAL;
959         return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
960 }
961
962 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
963
964 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
965
966 static struct snd_kcontrol_new snd_fm801_controls[] __devinitdata = {
967 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
968                  db_scale_dsp),
969 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
970 FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
971                  db_scale_dsp),
972 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
973 FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
974                  db_scale_dsp),
975 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
976 {
977         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
978         .name = "Digital Capture Source",
979         .info = snd_fm801_info_mux,
980         .get = snd_fm801_get_mux,
981         .put = snd_fm801_put_mux,
982 }
983 };
984
985 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
986
987 static struct snd_kcontrol_new snd_fm801_controls_multi[] __devinitdata = {
988 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
989 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
990 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
991 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
992 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
993 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
994 };
995
996 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
997 {
998         struct fm801 *chip = bus->private_data;
999         chip->ac97_bus = NULL;
1000 }
1001
1002 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1003 {
1004         struct fm801 *chip = ac97->private_data;
1005         if (ac97->num == 0) {
1006                 chip->ac97 = NULL;
1007         } else {
1008                 chip->ac97_sec = NULL;
1009         }
1010 }
1011
1012 static int __devinit snd_fm801_mixer(struct fm801 *chip)
1013 {
1014         struct snd_ac97_template ac97;
1015         unsigned int i;
1016         int err;
1017         static struct snd_ac97_bus_ops ops = {
1018                 .write = snd_fm801_codec_write,
1019                 .read = snd_fm801_codec_read,
1020         };
1021
1022         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1023                 return err;
1024         chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1025
1026         memset(&ac97, 0, sizeof(ac97));
1027         ac97.private_data = chip;
1028         ac97.private_free = snd_fm801_mixer_free_ac97;
1029         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1030                 return err;
1031         if (chip->secondary) {
1032                 ac97.num = 1;
1033                 ac97.addr = chip->secondary_addr;
1034                 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1035                         return err;
1036         }
1037         for (i = 0; i < FM801_CONTROLS; i++)
1038                 snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls[i], chip));
1039         if (chip->multichannel) {
1040                 for (i = 0; i < FM801_CONTROLS_MULTI; i++)
1041                         snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1042         }
1043         return 0;
1044 }
1045
1046 /*
1047  *  initialization routines
1048  */
1049
1050 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1051                           unsigned short reg, unsigned long waits)
1052 {
1053         unsigned long timeout = jiffies + waits;
1054
1055         outw(FM801_AC97_READ | (codec_id << FM801_AC97_ADDR_SHIFT) | reg,
1056              FM801_REG(chip, AC97_CMD));
1057         udelay(5);
1058         do {
1059                 if ((inw(FM801_REG(chip, AC97_CMD)) & (FM801_AC97_VALID|FM801_AC97_BUSY))
1060                     == FM801_AC97_VALID)
1061                         return 0;
1062                 schedule_timeout_uninterruptible(1);
1063         } while (time_after(timeout, jiffies));
1064         return -EIO;
1065 }
1066
1067 static int snd_fm801_chip_init(struct fm801 *chip, int resume)
1068 {
1069         unsigned short cmdw;
1070
1071         if (chip->tea575x_tuner & TUNER_ONLY)
1072                 goto __ac97_ok;
1073
1074         /* codec cold reset + AC'97 warm reset */
1075         outw((1<<5) | (1<<6), FM801_REG(chip, CODEC_CTRL));
1076         inw(FM801_REG(chip, CODEC_CTRL)); /* flush posting data */
1077         udelay(100);
1078         outw(0, FM801_REG(chip, CODEC_CTRL));
1079
1080         if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0)
1081                 if (!resume) {
1082                         snd_printk(KERN_INFO "Primary AC'97 codec not found, "
1083                                             "assume SF64-PCR (tuner-only)\n");
1084                         chip->tea575x_tuner = 3 | TUNER_ONLY;
1085                         goto __ac97_ok;
1086                 }
1087
1088         if (chip->multichannel) {
1089                 if (chip->secondary_addr) {
1090                         wait_for_codec(chip, chip->secondary_addr,
1091                                        AC97_VENDOR_ID1, msecs_to_jiffies(50));
1092                 } else {
1093                         /* my card has the secondary codec */
1094                         /* at address #3, so the loop is inverted */
1095                         int i;
1096                         for (i = 3; i > 0; i--) {
1097                                 if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1098                                                      msecs_to_jiffies(50))) {
1099                                         cmdw = inw(FM801_REG(chip, AC97_DATA));
1100                                         if (cmdw != 0xffff && cmdw != 0) {
1101                                                 chip->secondary = 1;
1102                                                 chip->secondary_addr = i;
1103                                                 break;
1104                                         }
1105                                 }
1106                         }
1107                 }
1108
1109                 /* the recovery phase, it seems that probing for non-existing codec might */
1110                 /* cause timeout problems */
1111                 wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1112         }
1113
1114       __ac97_ok:
1115
1116         /* init volume */
1117         outw(0x0808, FM801_REG(chip, PCM_VOL));
1118         outw(0x9f1f, FM801_REG(chip, FM_VOL));
1119         outw(0x8808, FM801_REG(chip, I2S_VOL));
1120
1121         /* I2S control - I2S mode */
1122         outw(0x0003, FM801_REG(chip, I2S_MODE));
1123
1124         /* interrupt setup */
1125         cmdw = inw(FM801_REG(chip, IRQ_MASK));
1126         if (chip->irq < 0)
1127                 cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
1128         else
1129                 cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
1130         outw(cmdw, FM801_REG(chip, IRQ_MASK));
1131
1132         /* interrupt clear */
1133         outw(FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU, FM801_REG(chip, IRQ_STATUS));
1134
1135         return 0;
1136 }
1137
1138
1139 static int snd_fm801_free(struct fm801 *chip)
1140 {
1141         unsigned short cmdw;
1142
1143         if (chip->irq < 0)
1144                 goto __end_hw;
1145
1146         /* interrupt setup - mask everything */
1147         cmdw = inw(FM801_REG(chip, IRQ_MASK));
1148         cmdw |= 0x00c3;
1149         outw(cmdw, FM801_REG(chip, IRQ_MASK));
1150
1151       __end_hw:
1152 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1153         snd_tea575x_exit(&chip->tea);
1154 #endif
1155         if (chip->irq >= 0)
1156                 free_irq(chip->irq, chip);
1157         pci_release_regions(chip->pci);
1158         pci_disable_device(chip->pci);
1159
1160         kfree(chip);
1161         return 0;
1162 }
1163
1164 static int snd_fm801_dev_free(struct snd_device *device)
1165 {
1166         struct fm801 *chip = device->device_data;
1167         return snd_fm801_free(chip);
1168 }
1169
1170 static int __devinit snd_fm801_create(struct snd_card *card,
1171                                       struct pci_dev * pci,
1172                                       int tea575x_tuner,
1173                                       struct fm801 ** rchip)
1174 {
1175         struct fm801 *chip;
1176         int err;
1177         static struct snd_device_ops ops = {
1178                 .dev_free =     snd_fm801_dev_free,
1179         };
1180
1181         *rchip = NULL;
1182         if ((err = pci_enable_device(pci)) < 0)
1183                 return err;
1184         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1185         if (chip == NULL) {
1186                 pci_disable_device(pci);
1187                 return -ENOMEM;
1188         }
1189         spin_lock_init(&chip->reg_lock);
1190         chip->card = card;
1191         chip->pci = pci;
1192         chip->irq = -1;
1193         chip->tea575x_tuner = tea575x_tuner;
1194         if ((err = pci_request_regions(pci, "FM801")) < 0) {
1195                 kfree(chip);
1196                 pci_disable_device(pci);
1197                 return err;
1198         }
1199         chip->port = pci_resource_start(pci, 0);
1200         if ((tea575x_tuner & TUNER_ONLY) == 0) {
1201                 if (request_irq(pci->irq, snd_fm801_interrupt, IRQF_SHARED,
1202                                 KBUILD_MODNAME, chip)) {
1203                         snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->irq);
1204                         snd_fm801_free(chip);
1205                         return -EBUSY;
1206                 }
1207                 chip->irq = pci->irq;
1208                 pci_set_master(pci);
1209         }
1210
1211         if (pci->revision >= 0xb1)      /* FM801-AU */
1212                 chip->multichannel = 1;
1213
1214         snd_fm801_chip_init(chip, 0);
1215         /* init might set tuner access method */
1216         tea575x_tuner = chip->tea575x_tuner;
1217
1218         if (chip->irq >= 0 && (tea575x_tuner & TUNER_ONLY)) {
1219                 pci_clear_master(pci);
1220                 free_irq(chip->irq, chip);
1221                 chip->irq = -1;
1222         }
1223
1224         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1225                 snd_fm801_free(chip);
1226                 return err;
1227         }
1228
1229         snd_card_set_dev(card, &pci->dev);
1230
1231 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1232         chip->tea.private_data = chip;
1233         chip->tea.ops = &snd_fm801_tea_ops;
1234         sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1235         if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1236             (tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1237                 if (snd_tea575x_init(&chip->tea)) {
1238                         snd_printk(KERN_ERR "TEA575x radio not found\n");
1239                         snd_fm801_free(chip);
1240                         return -ENODEV;
1241                 }
1242         } else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1243                 /* autodetect tuner connection */
1244                 for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1245                         chip->tea575x_tuner = tea575x_tuner;
1246                         if (!snd_tea575x_init(&chip->tea)) {
1247                                 snd_printk(KERN_INFO "detected TEA575x radio type %s\n",
1248                                         snd_fm801_tea575x_gpios[tea575x_tuner - 1].name);
1249                                 break;
1250                         }
1251                 }
1252                 if (tea575x_tuner == 4) {
1253                         snd_printk(KERN_ERR "TEA575x radio not found\n");
1254                         snd_fm801_free(chip);
1255                         return -ENODEV;
1256                 }
1257         }
1258         strlcpy(chip->tea.card, snd_fm801_tea575x_gpios[(tea575x_tuner & TUNER_TYPE_MASK) - 1].name, sizeof(chip->tea.card));
1259 #endif
1260
1261         *rchip = chip;
1262         return 0;
1263 }
1264
1265 static int __devinit snd_card_fm801_probe(struct pci_dev *pci,
1266                                           const struct pci_device_id *pci_id)
1267 {
1268         static int dev;
1269         struct snd_card *card;
1270         struct fm801 *chip;
1271         struct snd_opl3 *opl3;
1272         int err;
1273
1274         if (dev >= SNDRV_CARDS)
1275                 return -ENODEV;
1276         if (!enable[dev]) {
1277                 dev++;
1278                 return -ENOENT;
1279         }
1280
1281         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1282         if (err < 0)
1283                 return err;
1284         if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], &chip)) < 0) {
1285                 snd_card_free(card);
1286                 return err;
1287         }
1288         card->private_data = chip;
1289
1290         strcpy(card->driver, "FM801");
1291         strcpy(card->shortname, "ForteMedia FM801-");
1292         strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1293         sprintf(card->longname, "%s at 0x%lx, irq %i",
1294                 card->shortname, chip->port, chip->irq);
1295
1296         if (chip->tea575x_tuner & TUNER_ONLY)
1297                 goto __fm801_tuner_only;
1298
1299         if ((err = snd_fm801_pcm(chip, 0, NULL)) < 0) {
1300                 snd_card_free(card);
1301                 return err;
1302         }
1303         if ((err = snd_fm801_mixer(chip)) < 0) {
1304                 snd_card_free(card);
1305                 return err;
1306         }
1307         if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1308                                        FM801_REG(chip, MPU401_DATA),
1309                                        MPU401_INFO_INTEGRATED,
1310                                        chip->irq, 0, &chip->rmidi)) < 0) {
1311                 snd_card_free(card);
1312                 return err;
1313         }
1314         if ((err = snd_opl3_create(card, FM801_REG(chip, OPL3_BANK0),
1315                                    FM801_REG(chip, OPL3_BANK1),
1316                                    OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1317                 snd_card_free(card);
1318                 return err;
1319         }
1320         if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1321                 snd_card_free(card);
1322                 return err;
1323         }
1324
1325       __fm801_tuner_only:
1326         if ((err = snd_card_register(card)) < 0) {
1327                 snd_card_free(card);
1328                 return err;
1329         }
1330         pci_set_drvdata(pci, card);
1331         dev++;
1332         return 0;
1333 }
1334
1335 static void __devexit snd_card_fm801_remove(struct pci_dev *pci)
1336 {
1337         snd_card_free(pci_get_drvdata(pci));
1338         pci_set_drvdata(pci, NULL);
1339 }
1340
1341 #ifdef CONFIG_PM
1342 static unsigned char saved_regs[] = {
1343         FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1344         FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1345         FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1346         FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1347 };
1348
1349 static int snd_fm801_suspend(struct pci_dev *pci, pm_message_t state)
1350 {
1351         struct snd_card *card = pci_get_drvdata(pci);
1352         struct fm801 *chip = card->private_data;
1353         int i;
1354
1355         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1356         snd_pcm_suspend_all(chip->pcm);
1357         snd_ac97_suspend(chip->ac97);
1358         snd_ac97_suspend(chip->ac97_sec);
1359         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1360                 chip->saved_regs[i] = inw(chip->port + saved_regs[i]);
1361         /* FIXME: tea575x suspend */
1362
1363         pci_disable_device(pci);
1364         pci_save_state(pci);
1365         pci_set_power_state(pci, pci_choose_state(pci, state));
1366         return 0;
1367 }
1368
1369 static int snd_fm801_resume(struct pci_dev *pci)
1370 {
1371         struct snd_card *card = pci_get_drvdata(pci);
1372         struct fm801 *chip = card->private_data;
1373         int i;
1374
1375         pci_set_power_state(pci, PCI_D0);
1376         pci_restore_state(pci);
1377         if (pci_enable_device(pci) < 0) {
1378                 printk(KERN_ERR "fm801: pci_enable_device failed, "
1379                        "disabling device\n");
1380                 snd_card_disconnect(card);
1381                 return -EIO;
1382         }
1383         pci_set_master(pci);
1384
1385         snd_fm801_chip_init(chip, 1);
1386         snd_ac97_resume(chip->ac97);
1387         snd_ac97_resume(chip->ac97_sec);
1388         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1389                 outw(chip->saved_regs[i], chip->port + saved_regs[i]);
1390
1391         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1392         return 0;
1393 }
1394 #endif
1395
1396 static struct pci_driver driver = {
1397         .name = KBUILD_MODNAME,
1398         .id_table = snd_fm801_ids,
1399         .probe = snd_card_fm801_probe,
1400         .remove = __devexit_p(snd_card_fm801_remove),
1401 #ifdef CONFIG_PM
1402         .suspend = snd_fm801_suspend,
1403         .resume = snd_fm801_resume,
1404 #endif
1405 };
1406
1407 static int __init alsa_card_fm801_init(void)
1408 {
1409         return pci_register_driver(&driver);
1410 }
1411
1412 static void __exit alsa_card_fm801_exit(void)
1413 {
1414         pci_unregister_driver(&driver);
1415 }
1416
1417 module_init(alsa_card_fm801_init)
1418 module_exit(alsa_card_fm801_exit)