f5a4ac1ceef917303423927584d92f3017b41e1a
[linux-2.6.git] / sound / pci / cmipci.c
1 /*
2  * Driver for C-Media CMI8338 and 8738 PCI soundcards.
3  * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de>
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  *   You should have received a copy of the GNU General Public License
16  *   along with this program; if not, write to the Free Software
17  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
18  */
19  
20 /* Does not work. Warning may block system in capture mode */
21 /* #define USE_VAR48KRATE */
22
23 #include <sound/driver.h>
24 #include <asm/io.h>
25 #include <linux/delay.h>
26 #include <linux/interrupt.h>
27 #include <linux/init.h>
28 #include <linux/pci.h>
29 #include <linux/slab.h>
30 #include <linux/gameport.h>
31 #include <linux/moduleparam.h>
32 #include <sound/core.h>
33 #include <sound/info.h>
34 #include <sound/control.h>
35 #include <sound/pcm.h>
36 #include <sound/rawmidi.h>
37 #include <sound/mpu401.h>
38 #include <sound/opl3.h>
39 #include <sound/sb.h>
40 #include <sound/asoundef.h>
41 #include <sound/initval.h>
42
43 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
44 MODULE_DESCRIPTION("C-Media CMI8x38 PCI");
45 MODULE_LICENSE("GPL");
46 MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8738},"
47                 "{C-Media,CMI8738B},"
48                 "{C-Media,CMI8338A},"
49                 "{C-Media,CMI8338B}}");
50
51 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
52 #define SUPPORT_JOYSTICK 1
53 #endif
54
55 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
56 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
57 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable switches */
58 static long mpu_port[SNDRV_CARDS];
59 static long fm_port[SNDRV_CARDS];
60 static int soft_ac3[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)]=1};
61 #ifdef SUPPORT_JOYSTICK
62 static int joystick_port[SNDRV_CARDS];
63 #endif
64
65 module_param_array(index, int, NULL, 0444);
66 MODULE_PARM_DESC(index, "Index value for C-Media PCI soundcard.");
67 module_param_array(id, charp, NULL, 0444);
68 MODULE_PARM_DESC(id, "ID string for C-Media PCI soundcard.");
69 module_param_array(enable, bool, NULL, 0444);
70 MODULE_PARM_DESC(enable, "Enable C-Media PCI soundcard.");
71 module_param_array(mpu_port, long, NULL, 0444);
72 MODULE_PARM_DESC(mpu_port, "MPU-401 port.");
73 module_param_array(fm_port, long, NULL, 0444);
74 MODULE_PARM_DESC(fm_port, "FM port.");
75 module_param_array(soft_ac3, bool, NULL, 0444);
76 MODULE_PARM_DESC(soft_ac3, "Sofware-conversion of raw SPDIF packets (model 033 only).");
77 #ifdef SUPPORT_JOYSTICK
78 module_param_array(joystick_port, int, NULL, 0444);
79 MODULE_PARM_DESC(joystick_port, "Joystick port address.");
80 #endif
81
82 #ifndef PCI_DEVICE_ID_CMEDIA_CM8738
83 #define PCI_DEVICE_ID_CMEDIA_CM8738     0x0111
84 #endif
85 #ifndef PCI_DEVICE_ID_CMEDIA_CM8738B
86 #define PCI_DEVICE_ID_CMEDIA_CM8738B    0x0112
87 #endif
88
89 /*
90  * CM8x38 registers definition
91  */
92
93 #define CM_REG_FUNCTRL0         0x00
94 #define CM_RST_CH1              0x00080000
95 #define CM_RST_CH0              0x00040000
96 #define CM_CHEN1                0x00020000      /* ch1: enable */
97 #define CM_CHEN0                0x00010000      /* ch0: enable */
98 #define CM_PAUSE1               0x00000008      /* ch1: pause */
99 #define CM_PAUSE0               0x00000004      /* ch0: pause */
100 #define CM_CHADC1               0x00000002      /* ch1, 0:playback, 1:record */
101 #define CM_CHADC0               0x00000001      /* ch0, 0:playback, 1:record */
102
103 #define CM_REG_FUNCTRL1         0x04
104 #define CM_ASFC_MASK            0x0000E000      /* ADC sampling frequency */
105 #define CM_ASFC_SHIFT           13
106 #define CM_DSFC_MASK            0x00001C00      /* DAC sampling frequency */
107 #define CM_DSFC_SHIFT           10
108 #define CM_SPDF_1               0x00000200      /* SPDIF IN/OUT at channel B */
109 #define CM_SPDF_0               0x00000100      /* SPDIF OUT only channel A */
110 #define CM_SPDFLOOP             0x00000080      /* ext. SPDIIF/OUT -> IN loopback */
111 #define CM_SPDO2DAC             0x00000040      /* SPDIF/OUT can be heard from internal DAC */
112 #define CM_INTRM                0x00000020      /* master control block (MCB) interrupt enabled */
113 #define CM_BREQ                 0x00000010      /* bus master enabled */
114 #define CM_VOICE_EN             0x00000008      /* legacy voice (SB16,FM) */
115 #define CM_UART_EN              0x00000004      /* UART */
116 #define CM_JYSTK_EN             0x00000002      /* joy stick */
117
118 #define CM_REG_CHFORMAT         0x08
119
120 #define CM_CHB3D5C              0x80000000      /* 5,6 channels */
121 #define CM_CHB3D                0x20000000      /* 4 channels */
122
123 #define CM_CHIP_MASK1           0x1f000000
124 #define CM_CHIP_037             0x01000000
125
126 #define CM_SPDIF_SELECT1        0x00080000      /* for model <= 037 ? */
127 #define CM_AC3EN1               0x00100000      /* enable AC3: model 037 */
128 #define CM_SPD24SEL             0x00020000      /* 24bit spdif: model 037 */
129 /* #define CM_SPDIF_INVERSE     0x00010000 */ /* ??? */
130
131 #define CM_ADCBITLEN_MASK       0x0000C000      
132 #define CM_ADCBITLEN_16         0x00000000
133 #define CM_ADCBITLEN_15         0x00004000
134 #define CM_ADCBITLEN_14         0x00008000
135 #define CM_ADCBITLEN_13         0x0000C000
136
137 #define CM_ADCDACLEN_MASK       0x00003000
138 #define CM_ADCDACLEN_060        0x00000000
139 #define CM_ADCDACLEN_066        0x00001000
140 #define CM_ADCDACLEN_130        0x00002000
141 #define CM_ADCDACLEN_280        0x00003000
142
143 #define CM_CH1_SRATE_176K       0x00000800
144 #define CM_CH1_SRATE_88K        0x00000400
145 #define CM_CH0_SRATE_176K       0x00000200
146 #define CM_CH0_SRATE_88K        0x00000100
147
148 #define CM_SPDIF_INVERSE2       0x00000080      /* model 055? */
149
150 #define CM_CH1FMT_MASK          0x0000000C
151 #define CM_CH1FMT_SHIFT         2
152 #define CM_CH0FMT_MASK          0x00000003
153 #define CM_CH0FMT_SHIFT         0
154
155 #define CM_REG_INT_HLDCLR       0x0C
156 #define CM_CHIP_MASK2           0xff000000
157 #define CM_CHIP_039             0x04000000
158 #define CM_CHIP_039_6CH         0x01000000
159 #define CM_CHIP_055             0x08000000
160 #define CM_CHIP_8768            0x20000000
161 #define CM_TDMA_INT_EN          0x00040000
162 #define CM_CH1_INT_EN           0x00020000
163 #define CM_CH0_INT_EN           0x00010000
164 #define CM_INT_HOLD             0x00000002
165 #define CM_INT_CLEAR            0x00000001
166
167 #define CM_REG_INT_STATUS       0x10
168 #define CM_INTR                 0x80000000
169 #define CM_VCO                  0x08000000      /* Voice Control? CMI8738 */
170 #define CM_MCBINT               0x04000000      /* Master Control Block abort cond.? */
171 #define CM_UARTINT              0x00010000
172 #define CM_LTDMAINT             0x00008000
173 #define CM_HTDMAINT             0x00004000
174 #define CM_XDO46                0x00000080      /* Modell 033? Direct programming EEPROM (read data register) */
175 #define CM_LHBTOG               0x00000040      /* High/Low status from DMA ctrl register */
176 #define CM_LEG_HDMA             0x00000020      /* Legacy is in High DMA channel */
177 #define CM_LEG_STEREO           0x00000010      /* Legacy is in Stereo mode */
178 #define CM_CH1BUSY              0x00000008
179 #define CM_CH0BUSY              0x00000004
180 #define CM_CHINT1               0x00000002
181 #define CM_CHINT0               0x00000001
182
183 #define CM_REG_LEGACY_CTRL      0x14
184 #define CM_NXCHG                0x80000000      /* h/w multi channels? */
185 #define CM_VMPU_MASK            0x60000000      /* MPU401 i/o port address */
186 #define CM_VMPU_330             0x00000000
187 #define CM_VMPU_320             0x20000000
188 #define CM_VMPU_310             0x40000000
189 #define CM_VMPU_300             0x60000000
190 #define CM_VSBSEL_MASK          0x0C000000      /* SB16 base address */
191 #define CM_VSBSEL_220           0x00000000
192 #define CM_VSBSEL_240           0x04000000
193 #define CM_VSBSEL_260           0x08000000
194 #define CM_VSBSEL_280           0x0C000000
195 #define CM_FMSEL_MASK           0x03000000      /* FM OPL3 base address */
196 #define CM_FMSEL_388            0x00000000
197 #define CM_FMSEL_3C8            0x01000000
198 #define CM_FMSEL_3E0            0x02000000
199 #define CM_FMSEL_3E8            0x03000000
200 #define CM_ENSPDOUT             0x00800000      /* enable XPDIF/OUT to I/O interface */
201 #define CM_SPDCOPYRHT           0x00400000      /* set copyright spdif in/out */
202 #define CM_DAC2SPDO             0x00200000      /* enable wave+fm_midi -> SPDIF/OUT */
203 #define CM_SETRETRY             0x00010000      /* 0: legacy i/o wait (default), 1: legacy i/o bus retry */
204 #define CM_CHB3D6C              0x00008000      /* 5.1 channels support */
205 #define CM_LINE_AS_BASS         0x00006000      /* use line-in as bass */
206
207 #define CM_REG_MISC_CTRL        0x18
208 #define CM_PWD                  0x80000000
209 #define CM_RESET                0x40000000
210 #define CM_SFIL_MASK            0x30000000
211 #define CM_TXVX                 0x08000000
212 #define CM_N4SPK3D              0x04000000      /* 4ch output */
213 #define CM_SPDO5V               0x02000000      /* 5V spdif output (1 = 0.5v (coax)) */
214 #define CM_SPDIF48K             0x01000000      /* write */
215 #define CM_SPATUS48K            0x01000000      /* read */
216 #define CM_ENDBDAC              0x00800000      /* enable dual dac */
217 #define CM_XCHGDAC              0x00400000      /* 0: front=ch0, 1: front=ch1 */
218 #define CM_SPD32SEL             0x00200000      /* 0: 16bit SPDIF, 1: 32bit */
219 #define CM_SPDFLOOPI            0x00100000      /* int. SPDIF-IN -> int. OUT */
220 #define CM_FM_EN                0x00080000      /* enalbe FM */
221 #define CM_AC3EN2               0x00040000      /* enable AC3: model 039 */
222 #define CM_VIDWPDSB             0x00010000 
223 #define CM_SPDF_AC97            0x00008000      /* 0: SPDIF/OUT 44.1K, 1: 48K */
224 #define CM_MASK_EN              0x00004000
225 #define CM_VIDWPPRT             0x00002000
226 #define CM_SFILENB              0x00001000
227 #define CM_MMODE_MASK           0x00000E00
228 #define CM_SPDIF_SELECT2        0x00000100      /* for model > 039 ? */
229 #define CM_ENCENTER             0x00000080
230 #define CM_FLINKON              0x00000040
231 #define CM_FLINKOFF             0x00000020
232 #define CM_MIDSMP               0x00000010
233 #define CM_UPDDMA_MASK          0x0000000C
234 #define CM_TWAIT_MASK           0x00000003
235
236         /* byte */
237 #define CM_REG_MIXER0           0x20
238
239 #define CM_REG_SB16_DATA        0x22
240 #define CM_REG_SB16_ADDR        0x23
241
242 #define CM_REFFREQ_XIN          (315*1000*1000)/22      /* 14.31818 Mhz reference clock frequency pin XIN */
243 #define CM_ADCMULT_XIN          512                     /* Guessed (487 best for 44.1kHz, not for 88/176kHz) */
244 #define CM_TOLERANCE_RATE       0.001                   /* Tolerance sample rate pitch (1000ppm) */
245 #define CM_MAXIMUM_RATE         80000000                /* Note more than 80MHz */
246
247 #define CM_REG_MIXER1           0x24
248 #define CM_FMMUTE               0x80    /* mute FM */
249 #define CM_FMMUTE_SHIFT         7
250 #define CM_WSMUTE               0x40    /* mute PCM */
251 #define CM_WSMUTE_SHIFT         6
252 #define CM_SPK4                 0x20    /* lin-in -> rear line out */
253 #define CM_SPK4_SHIFT           5
254 #define CM_REAR2FRONT           0x10    /* exchange rear/front */
255 #define CM_REAR2FRONT_SHIFT     4
256 #define CM_WAVEINL              0x08    /* digital wave rec. left chan */
257 #define CM_WAVEINL_SHIFT        3
258 #define CM_WAVEINR              0x04    /* digical wave rec. right */
259 #define CM_WAVEINR_SHIFT        2
260 #define CM_X3DEN                0x02    /* 3D surround enable */
261 #define CM_X3DEN_SHIFT          1
262 #define CM_CDPLAY               0x01    /* enable SPDIF/IN PCM -> DAC */
263 #define CM_CDPLAY_SHIFT         0
264
265 #define CM_REG_MIXER2           0x25
266 #define CM_RAUXREN              0x80    /* AUX right capture */
267 #define CM_RAUXREN_SHIFT        7
268 #define CM_RAUXLEN              0x40    /* AUX left capture */
269 #define CM_RAUXLEN_SHIFT        6
270 #define CM_VAUXRM               0x20    /* AUX right mute */
271 #define CM_VAUXRM_SHIFT         5
272 #define CM_VAUXLM               0x10    /* AUX left mute */
273 #define CM_VAUXLM_SHIFT         4
274 #define CM_VADMIC_MASK          0x0e    /* mic gain level (0-3) << 1 */
275 #define CM_VADMIC_SHIFT         1
276 #define CM_MICGAINZ             0x01    /* mic boost */
277 #define CM_MICGAINZ_SHIFT       0
278
279 #define CM_REG_AUX_VOL          0x26
280 #define CM_VAUXL_MASK           0xf0
281 #define CM_VAUXR_MASK           0x0f
282
283 #define CM_REG_MISC             0x27
284 #define CM_XGPO1                0x20
285 // #define CM_XGPBIO            0x04
286 #define CM_MIC_CENTER_LFE       0x04    /* mic as center/lfe out? (model 039 or later?) */
287 #define CM_SPDIF_INVERSE        0x04    /* spdif input phase inverse (model 037) */
288 #define CM_SPDVALID             0x02    /* spdif input valid check */
289 #define CM_DMAUTO               0x01
290
291 #define CM_REG_AC97             0x28    /* hmmm.. do we have ac97 link? */
292 /*
293  * For CMI-8338 (0x28 - 0x2b) .. is this valid for CMI-8738
294  * or identical with AC97 codec?
295  */
296 #define CM_REG_EXTERN_CODEC     CM_REG_AC97
297
298 /*
299  * MPU401 pci port index address 0x40 - 0x4f (CMI-8738 spec ver. 0.6)
300  */
301 #define CM_REG_MPU_PCI          0x40
302
303 /*
304  * FM pci port index address 0x50 - 0x5f (CMI-8738 spec ver. 0.6)
305  */
306 #define CM_REG_FM_PCI           0x50
307
308 /*
309  * access from SB-mixer port
310  */
311 #define CM_REG_EXTENT_IND       0xf0
312 #define CM_VPHONE_MASK          0xe0    /* Phone volume control (0-3) << 5 */
313 #define CM_VPHONE_SHIFT         5
314 #define CM_VPHOM                0x10    /* Phone mute control */
315 #define CM_VSPKM                0x08    /* Speaker mute control, default high */
316 #define CM_RLOOPREN             0x04    /* Rec. R-channel enable */
317 #define CM_RLOOPLEN             0x02    /* Rec. L-channel enable */
318 #define CM_VADMIC3              0x01    /* Mic record boost */
319
320 /*
321  * CMI-8338 spec ver 0.5 (this is not valid for CMI-8738):
322  * the 8 registers 0xf8 - 0xff are used for programming m/n counter by the PLL
323  * unit (readonly?).
324  */
325 #define CM_REG_PLL              0xf8
326
327 /*
328  * extended registers
329  */
330 #define CM_REG_CH0_FRAME1       0x80    /* base address */
331 #define CM_REG_CH0_FRAME2       0x84
332 #define CM_REG_CH1_FRAME1       0x88    /* 0-15: count of samples at bus master; buffer size */
333 #define CM_REG_CH1_FRAME2       0x8C    /* 16-31: count of samples at codec; fragment size */
334 #define CM_REG_MISC_CTRL_8768   0x92    /* reg. name the same as 0x18 */
335 #define CM_CHB3D8C              0x20    /* 7.1 channels support */
336 #define CM_SPD32FMT             0x10    /* SPDIF/IN 32k */
337 #define CM_ADC2SPDIF            0x08    /* ADC output to SPDIF/OUT */
338 #define CM_SHAREADC             0x04    /* DAC in ADC as Center/LFE */
339 #define CM_REALTCMP             0x02    /* monitor the CMPL/CMPR of ADC */
340 #define CM_INVLRCK              0x01    /* invert ZVPORT's LRCK */
341
342 /*
343  * size of i/o region
344  */
345 #define CM_EXTENT_CODEC   0x100
346 #define CM_EXTENT_MIDI    0x2
347 #define CM_EXTENT_SYNTH   0x4
348
349
350 /*
351  * pci ids
352  */
353 #ifndef PCI_VENDOR_ID_CMEDIA
354 #define PCI_VENDOR_ID_CMEDIA         0x13F6
355 #endif
356 #ifndef PCI_DEVICE_ID_CMEDIA_CM8338A
357 #define PCI_DEVICE_ID_CMEDIA_CM8338A 0x0100
358 #endif
359 #ifndef PCI_DEVICE_ID_CMEDIA_CM8338B
360 #define PCI_DEVICE_ID_CMEDIA_CM8338B 0x0101
361 #endif
362 #ifndef PCI_DEVICE_ID_CMEDIA_CM8738
363 #define PCI_DEVICE_ID_CMEDIA_CM8738  0x0111
364 #endif
365 #ifndef PCI_DEVICE_ID_CMEDIA_CM8738B
366 #define PCI_DEVICE_ID_CMEDIA_CM8738B 0x0112
367 #endif
368
369 /*
370  * channels for playback / capture
371  */
372 #define CM_CH_PLAY      0
373 #define CM_CH_CAPT      1
374
375 /*
376  * flags to check device open/close
377  */
378 #define CM_OPEN_NONE    0
379 #define CM_OPEN_CH_MASK 0x01
380 #define CM_OPEN_DAC     0x10
381 #define CM_OPEN_ADC     0x20
382 #define CM_OPEN_SPDIF   0x40
383 #define CM_OPEN_MCHAN   0x80
384 #define CM_OPEN_PLAYBACK        (CM_CH_PLAY | CM_OPEN_DAC)
385 #define CM_OPEN_PLAYBACK2       (CM_CH_CAPT | CM_OPEN_DAC)
386 #define CM_OPEN_PLAYBACK_MULTI  (CM_CH_PLAY | CM_OPEN_DAC | CM_OPEN_MCHAN)
387 #define CM_OPEN_CAPTURE         (CM_CH_CAPT | CM_OPEN_ADC)
388 #define CM_OPEN_SPDIF_PLAYBACK  (CM_CH_PLAY | CM_OPEN_DAC | CM_OPEN_SPDIF)
389 #define CM_OPEN_SPDIF_CAPTURE   (CM_CH_CAPT | CM_OPEN_ADC | CM_OPEN_SPDIF)
390
391
392 #if CM_CH_PLAY == 1
393 #define CM_PLAYBACK_SRATE_176K  CM_CH1_SRATE_176K
394 #define CM_PLAYBACK_SPDF        CM_SPDF_1
395 #define CM_CAPTURE_SPDF         CM_SPDF_0
396 #else
397 #define CM_PLAYBACK_SRATE_176K CM_CH0_SRATE_176K
398 #define CM_PLAYBACK_SPDF        CM_SPDF_0
399 #define CM_CAPTURE_SPDF         CM_SPDF_1
400 #endif
401
402
403 /*
404  * driver data
405  */
406
407 typedef struct snd_stru_cmipci cmipci_t;
408 typedef struct snd_stru_cmipci_pcm cmipci_pcm_t;
409
410 struct snd_stru_cmipci_pcm {
411         snd_pcm_substream_t *substream;
412         int running;            /* dac/adc running? */
413         unsigned int dma_size;  /* in frames */
414         unsigned int period_size;       /* in frames */
415         unsigned int offset;    /* physical address of the buffer */
416         unsigned int fmt;       /* format bits */
417         int ch;                 /* channel (0/1) */
418         unsigned int is_dac;            /* is dac? */
419         int bytes_per_frame;
420         int shift;
421 };
422
423 /* mixer elements toggled/resumed during ac3 playback */
424 struct cmipci_mixer_auto_switches {
425         const char *name;       /* switch to toggle */
426         int toggle_on;          /* value to change when ac3 mode */
427 };
428 static const struct cmipci_mixer_auto_switches cm_saved_mixer[] = {
429         {"PCM Playback Switch", 0},
430         {"IEC958 Output Switch", 1},
431         {"IEC958 Mix Analog", 0},
432         // {"IEC958 Out To DAC", 1}, // no longer used
433         {"IEC958 Loop", 0},
434 };
435 #define CM_SAVED_MIXERS         ARRAY_SIZE(cm_saved_mixer)
436
437 struct snd_stru_cmipci {
438         snd_card_t *card;
439
440         struct pci_dev *pci;
441         unsigned int device;    /* device ID */
442         int irq;
443
444         unsigned long iobase;
445         unsigned int ctrl;      /* FUNCTRL0 current value */
446
447         snd_pcm_t *pcm;         /* DAC/ADC PCM */
448         snd_pcm_t *pcm2;        /* 2nd DAC */
449         snd_pcm_t *pcm_spdif;   /* SPDIF */
450
451         int chip_version;
452         int max_channels;
453         unsigned int has_dual_dac: 1;
454         unsigned int can_ac3_sw: 1;
455         unsigned int can_ac3_hw: 1;
456         unsigned int can_multi_ch: 1;
457         unsigned int do_soft_ac3: 1;
458
459         unsigned int spdif_playback_avail: 1;   /* spdif ready? */
460         unsigned int spdif_playback_enabled: 1; /* spdif switch enabled? */
461         int spdif_counter;      /* for software AC3 */
462
463         unsigned int dig_status;
464         unsigned int dig_pcm_status;
465
466         snd_pcm_hardware_t *hw_info[3]; /* for playbacks */
467
468         int opened[2];  /* open mode */
469         struct semaphore open_mutex;
470
471         unsigned int mixer_insensitive: 1;
472         snd_kcontrol_t *mixer_res_ctl[CM_SAVED_MIXERS];
473         int mixer_res_status[CM_SAVED_MIXERS];
474
475         opl3_t *opl3;
476         snd_hwdep_t *opl3hwdep;
477
478         cmipci_pcm_t channel[2];        /* ch0 - DAC, ch1 - ADC or 2nd DAC */
479
480         /* external MIDI */
481         snd_rawmidi_t *rmidi;
482
483 #ifdef SUPPORT_JOYSTICK
484         struct gameport *gameport;
485 #endif
486
487         spinlock_t reg_lock;
488 };
489
490
491 /* read/write operations for dword register */
492 static inline void snd_cmipci_write(cmipci_t *cm, unsigned int cmd, unsigned int data)
493 {
494         outl(data, cm->iobase + cmd);
495 }
496
497 static inline unsigned int snd_cmipci_read(cmipci_t *cm, unsigned int cmd)
498 {
499         return inl(cm->iobase + cmd);
500 }
501
502 /* read/write operations for word register */
503 static inline void snd_cmipci_write_w(cmipci_t *cm, unsigned int cmd, unsigned short data)
504 {
505         outw(data, cm->iobase + cmd);
506 }
507
508 static inline unsigned short snd_cmipci_read_w(cmipci_t *cm, unsigned int cmd)
509 {
510         return inw(cm->iobase + cmd);
511 }
512
513 /* read/write operations for byte register */
514 static inline void snd_cmipci_write_b(cmipci_t *cm, unsigned int cmd, unsigned char data)
515 {
516         outb(data, cm->iobase + cmd);
517 }
518
519 static inline unsigned char snd_cmipci_read_b(cmipci_t *cm, unsigned int cmd)
520 {
521         return inb(cm->iobase + cmd);
522 }
523
524 /* bit operations for dword register */
525 static int snd_cmipci_set_bit(cmipci_t *cm, unsigned int cmd, unsigned int flag)
526 {
527         unsigned int val, oval;
528         val = oval = inl(cm->iobase + cmd);
529         val |= flag;
530         if (val == oval)
531                 return 0;
532         outl(val, cm->iobase + cmd);
533         return 1;
534 }
535
536 static int snd_cmipci_clear_bit(cmipci_t *cm, unsigned int cmd, unsigned int flag)
537 {
538         unsigned int val, oval;
539         val = oval = inl(cm->iobase + cmd);
540         val &= ~flag;
541         if (val == oval)
542                 return 0;
543         outl(val, cm->iobase + cmd);
544         return 1;
545 }
546
547 /* bit operations for byte register */
548 static int snd_cmipci_set_bit_b(cmipci_t *cm, unsigned int cmd, unsigned char flag)
549 {
550         unsigned char val, oval;
551         val = oval = inb(cm->iobase + cmd);
552         val |= flag;
553         if (val == oval)
554                 return 0;
555         outb(val, cm->iobase + cmd);
556         return 1;
557 }
558
559 static int snd_cmipci_clear_bit_b(cmipci_t *cm, unsigned int cmd, unsigned char flag)
560 {
561         unsigned char val, oval;
562         val = oval = inb(cm->iobase + cmd);
563         val &= ~flag;
564         if (val == oval)
565                 return 0;
566         outb(val, cm->iobase + cmd);
567         return 1;
568 }
569
570
571 /*
572  * PCM interface
573  */
574
575 /*
576  * calculate frequency
577  */
578
579 static unsigned int rates[] = { 5512, 11025, 22050, 44100, 8000, 16000, 32000, 48000 };
580
581 static unsigned int snd_cmipci_rate_freq(unsigned int rate)
582 {
583         unsigned int i;
584         for (i = 0; i < ARRAY_SIZE(rates); i++) {
585                 if (rates[i] == rate)
586                         return i;
587         }
588         snd_BUG();
589         return 0;
590 }
591
592 #ifdef USE_VAR48KRATE
593 /*
594  * Determine PLL values for frequency setup, maybe the CMI8338 (CMI8738???)
595  * does it this way .. maybe not.  Never get any information from C-Media about
596  * that <werner@suse.de>.
597  */
598 static int snd_cmipci_pll_rmn(unsigned int rate, unsigned int adcmult, int *r, int *m, int *n)
599 {
600         unsigned int delta, tolerance;
601         int xm, xn, xr;
602
603         for (*r = 0; rate < CM_MAXIMUM_RATE/adcmult; *r += (1<<5))
604                 rate <<= 1;
605         *n = -1;
606         if (*r > 0xff)
607                 goto out;
608         tolerance = rate*CM_TOLERANCE_RATE;
609
610         for (xn = (1+2); xn < (0x1f+2); xn++) {
611                 for (xm = (1+2); xm < (0xff+2); xm++) {
612                         xr = ((CM_REFFREQ_XIN/adcmult) * xm) / xn;
613
614                         if (xr < rate)
615                                 delta = rate - xr;
616                         else
617                                 delta = xr - rate;
618
619                         /*
620                          * If we found one, remember this,
621                          * and try to find a closer one
622                          */
623                         if (delta < tolerance) {
624                                 tolerance = delta;
625                                 *m = xm - 2;
626                                 *n = xn - 2;
627                         }
628                 }
629         }
630 out:
631         return (*n > -1);
632 }
633
634 /*
635  * Program pll register bits, I assume that the 8 registers 0xf8 upto 0xff
636  * are mapped onto the 8 ADC/DAC sampling frequency which can be choosen
637  * at the register CM_REG_FUNCTRL1 (0x04).
638  * Problem: other ways are also possible (any information about that?)
639  */
640 static void snd_cmipci_set_pll(cmipci_t *cm, unsigned int rate, unsigned int slot)
641 {
642         unsigned int reg = CM_REG_PLL + slot;
643         /*
644          * Guess that this programs at reg. 0x04 the pos 15:13/12:10
645          * for DSFC/ASFC (000 upto 111).
646          */
647
648         /* FIXME: Init (Do we've to set an other register first before programming?) */
649
650         /* FIXME: Is this correct? Or shouldn't the m/n/r values be used for that? */
651         snd_cmipci_write_b(cm, reg, rate>>8);
652         snd_cmipci_write_b(cm, reg, rate&0xff);
653
654         /* FIXME: Setup (Do we've to set an other register first to enable this?) */
655 }
656 #endif /* USE_VAR48KRATE */
657
658 static int snd_cmipci_hw_params(snd_pcm_substream_t * substream,
659                                 snd_pcm_hw_params_t * hw_params)
660 {
661         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
662 }
663
664 static int snd_cmipci_playback2_hw_params(snd_pcm_substream_t * substream,
665                                           snd_pcm_hw_params_t * hw_params)
666 {
667         cmipci_t *cm = snd_pcm_substream_chip(substream);
668         if (params_channels(hw_params) > 2) {
669                 down(&cm->open_mutex);
670                 if (cm->opened[CM_CH_PLAY]) {
671                         up(&cm->open_mutex);
672                         return -EBUSY;
673                 }
674                 /* reserve the channel A */
675                 cm->opened[CM_CH_PLAY] = CM_OPEN_PLAYBACK_MULTI;
676                 up(&cm->open_mutex);
677         }
678         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
679 }
680
681 static void snd_cmipci_ch_reset(cmipci_t *cm, int ch)
682 {
683         int reset = CM_RST_CH0 << (cm->channel[ch].ch);
684         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl | reset);
685         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl & ~reset);
686         udelay(10);
687 }
688
689 static int snd_cmipci_hw_free(snd_pcm_substream_t * substream)
690 {
691         return snd_pcm_lib_free_pages(substream);
692 }
693
694
695 /*
696  */
697
698 static unsigned int hw_channels[] = {1, 2, 4, 5, 6, 8};
699 static snd_pcm_hw_constraint_list_t hw_constraints_channels_4 = {
700         .count = 3,
701         .list = hw_channels,
702         .mask = 0,
703 };
704 static snd_pcm_hw_constraint_list_t hw_constraints_channels_6 = {
705         .count = 5,
706         .list = hw_channels,
707         .mask = 0,
708 };
709 static snd_pcm_hw_constraint_list_t hw_constraints_channels_8 = {
710         .count = 6,
711         .list = hw_channels,
712         .mask = 0,
713 };
714
715 static int set_dac_channels(cmipci_t *cm, cmipci_pcm_t *rec, int channels)
716 {
717         if (channels > 2) {
718                 if (! cm->can_multi_ch)
719                         return -EINVAL;
720                 if (rec->fmt != 0x03) /* stereo 16bit only */
721                         return -EINVAL;
722
723                 spin_lock_irq(&cm->reg_lock);
724                 snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG);
725                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
726                 if (channels > 4) {
727                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
728                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
729                 } else {
730                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
731                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
732                 }
733                 if (channels >= 6) {
734                         snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
735                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
736                 } else {
737                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
738                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
739                 }
740                 if (cm->chip_version == 68) {
741                         if (channels == 8) {
742                                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL_8768, CM_CHB3D8C);
743                         } else {
744                                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL_8768, CM_CHB3D8C);
745                         }
746                 }
747                 spin_unlock_irq(&cm->reg_lock);
748
749         } else {
750                 if (cm->can_multi_ch) {
751                         spin_lock_irq(&cm->reg_lock);
752                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG);
753                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
754                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
755                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
756                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
757                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
758                         spin_unlock_irq(&cm->reg_lock);
759                 }
760         }
761         return 0;
762 }
763
764
765 /*
766  * prepare playback/capture channel
767  * channel to be used must have been set in rec->ch.
768  */
769 static int snd_cmipci_pcm_prepare(cmipci_t *cm, cmipci_pcm_t *rec,
770                                  snd_pcm_substream_t *substream)
771 {
772         unsigned int reg, freq, val;
773         snd_pcm_runtime_t *runtime = substream->runtime;
774
775         rec->fmt = 0;
776         rec->shift = 0;
777         if (snd_pcm_format_width(runtime->format) >= 16) {
778                 rec->fmt |= 0x02;
779                 if (snd_pcm_format_width(runtime->format) > 16)
780                         rec->shift++; /* 24/32bit */
781         }
782         if (runtime->channels > 1)
783                 rec->fmt |= 0x01;
784         if (rec->is_dac && set_dac_channels(cm, rec, runtime->channels) < 0) {
785                 snd_printd("cannot set dac channels\n");
786                 return -EINVAL;
787         }
788
789         rec->offset = runtime->dma_addr;
790         /* buffer and period sizes in frame */
791         rec->dma_size = runtime->buffer_size << rec->shift;
792         rec->period_size = runtime->period_size << rec->shift;
793         if (runtime->channels > 2) {
794                 /* multi-channels */
795                 rec->dma_size = (rec->dma_size * runtime->channels) / 2;
796                 rec->period_size = (rec->period_size * runtime->channels) / 2;
797         }
798
799         spin_lock_irq(&cm->reg_lock);
800
801         /* set buffer address */
802         reg = rec->ch ? CM_REG_CH1_FRAME1 : CM_REG_CH0_FRAME1;
803         snd_cmipci_write(cm, reg, rec->offset);
804         /* program sample counts */
805         reg = rec->ch ? CM_REG_CH1_FRAME2 : CM_REG_CH0_FRAME2;
806         snd_cmipci_write_w(cm, reg, rec->dma_size - 1);
807         snd_cmipci_write_w(cm, reg + 2, rec->period_size - 1);
808
809         /* set adc/dac flag */
810         val = rec->ch ? CM_CHADC1 : CM_CHADC0;
811         if (rec->is_dac)
812                 cm->ctrl &= ~val;
813         else
814                 cm->ctrl |= val;
815         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
816         //snd_printd("cmipci: functrl0 = %08x\n", cm->ctrl);
817
818         /* set sample rate */
819         freq = snd_cmipci_rate_freq(runtime->rate);
820         val = snd_cmipci_read(cm, CM_REG_FUNCTRL1);
821         if (rec->ch) {
822                 val &= ~CM_ASFC_MASK;
823                 val |= (freq << CM_ASFC_SHIFT) & CM_ASFC_MASK;
824         } else {
825                 val &= ~CM_DSFC_MASK;
826                 val |= (freq << CM_DSFC_SHIFT) & CM_DSFC_MASK;
827         }
828         snd_cmipci_write(cm, CM_REG_FUNCTRL1, val);
829         //snd_printd("cmipci: functrl1 = %08x\n", val);
830
831         /* set format */
832         val = snd_cmipci_read(cm, CM_REG_CHFORMAT);
833         if (rec->ch) {
834                 val &= ~CM_CH1FMT_MASK;
835                 val |= rec->fmt << CM_CH1FMT_SHIFT;
836         } else {
837                 val &= ~CM_CH0FMT_MASK;
838                 val |= rec->fmt << CM_CH0FMT_SHIFT;
839         }
840         snd_cmipci_write(cm, CM_REG_CHFORMAT, val);
841         //snd_printd("cmipci: chformat = %08x\n", val);
842
843         rec->running = 0;
844         spin_unlock_irq(&cm->reg_lock);
845
846         return 0;
847 }
848
849 /*
850  * PCM trigger/stop
851  */
852 static int snd_cmipci_pcm_trigger(cmipci_t *cm, cmipci_pcm_t *rec,
853                                  snd_pcm_substream_t *substream, int cmd)
854 {
855         unsigned int inthld, chen, reset, pause;
856         int result = 0;
857
858         inthld = CM_CH0_INT_EN << rec->ch;
859         chen = CM_CHEN0 << rec->ch;
860         reset = CM_RST_CH0 << rec->ch;
861         pause = CM_PAUSE0 << rec->ch;
862
863         spin_lock(&cm->reg_lock);
864         switch (cmd) {
865         case SNDRV_PCM_TRIGGER_START:
866                 rec->running = 1;
867                 /* set interrupt */
868                 snd_cmipci_set_bit(cm, CM_REG_INT_HLDCLR, inthld);
869                 cm->ctrl |= chen;
870                 /* enable channel */
871                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
872                 //snd_printd("cmipci: functrl0 = %08x\n", cm->ctrl);
873                 break;
874         case SNDRV_PCM_TRIGGER_STOP:
875                 rec->running = 0;
876                 /* disable interrupt */
877                 snd_cmipci_clear_bit(cm, CM_REG_INT_HLDCLR, inthld);
878                 /* reset */
879                 cm->ctrl &= ~chen;
880                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl | reset);
881                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl & ~reset);
882                 break;
883         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
884                 cm->ctrl |= pause;
885                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
886                 break;
887         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
888                 cm->ctrl &= ~pause;
889                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
890                 break;
891         default:
892                 result = -EINVAL;
893                 break;
894         }
895         spin_unlock(&cm->reg_lock);
896         return result;
897 }
898
899 /*
900  * return the current pointer
901  */
902 static snd_pcm_uframes_t snd_cmipci_pcm_pointer(cmipci_t *cm, cmipci_pcm_t *rec,
903                                           snd_pcm_substream_t *substream)
904 {
905         size_t ptr;
906         unsigned int reg;
907         if (!rec->running)
908                 return 0;
909 #if 1 // this seems better..
910         reg = rec->ch ? CM_REG_CH1_FRAME2 : CM_REG_CH0_FRAME2;
911         ptr = rec->dma_size - (snd_cmipci_read_w(cm, reg) + 1);
912         ptr >>= rec->shift;
913 #else
914         reg = rec->ch ? CM_REG_CH1_FRAME1 : CM_REG_CH0_FRAME1;
915         ptr = snd_cmipci_read(cm, reg) - rec->offset;
916         ptr = bytes_to_frames(substream->runtime, ptr);
917 #endif
918         if (substream->runtime->channels > 2)
919                 ptr = (ptr * 2) / substream->runtime->channels;
920         return ptr;
921 }
922
923 /*
924  * playback
925  */
926
927 static int snd_cmipci_playback_trigger(snd_pcm_substream_t *substream,
928                                        int cmd)
929 {
930         cmipci_t *cm = snd_pcm_substream_chip(substream);
931         return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_PLAY], substream, cmd);
932 }
933
934 static snd_pcm_uframes_t snd_cmipci_playback_pointer(snd_pcm_substream_t *substream)
935 {
936         cmipci_t *cm = snd_pcm_substream_chip(substream);
937         return snd_cmipci_pcm_pointer(cm, &cm->channel[CM_CH_PLAY], substream);
938 }
939
940
941
942 /*
943  * capture
944  */
945
946 static int snd_cmipci_capture_trigger(snd_pcm_substream_t *substream,
947                                      int cmd)
948 {
949         cmipci_t *cm = snd_pcm_substream_chip(substream);
950         return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_CAPT], substream, cmd);
951 }
952
953 static snd_pcm_uframes_t snd_cmipci_capture_pointer(snd_pcm_substream_t *substream)
954 {
955         cmipci_t *cm = snd_pcm_substream_chip(substream);
956         return snd_cmipci_pcm_pointer(cm, &cm->channel[CM_CH_CAPT], substream);
957 }
958
959
960 /*
961  * hw preparation for spdif
962  */
963
964 static int snd_cmipci_spdif_default_info(snd_kcontrol_t *kcontrol,
965                                          snd_ctl_elem_info_t *uinfo)
966 {
967         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
968         uinfo->count = 1;
969         return 0;
970 }
971
972 static int snd_cmipci_spdif_default_get(snd_kcontrol_t *kcontrol,
973                                         snd_ctl_elem_value_t *ucontrol)
974 {
975         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
976         int i;
977
978         spin_lock_irq(&chip->reg_lock);
979         for (i = 0; i < 4; i++)
980                 ucontrol->value.iec958.status[i] = (chip->dig_status >> (i * 8)) & 0xff;
981         spin_unlock_irq(&chip->reg_lock);
982         return 0;
983 }
984
985 static int snd_cmipci_spdif_default_put(snd_kcontrol_t * kcontrol,
986                                          snd_ctl_elem_value_t * ucontrol)
987 {
988         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
989         int i, change;
990         unsigned int val;
991
992         val = 0;
993         spin_lock_irq(&chip->reg_lock);
994         for (i = 0; i < 4; i++)
995                 val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
996         change = val != chip->dig_status;
997         chip->dig_status = val;
998         spin_unlock_irq(&chip->reg_lock);
999         return change;
1000 }
1001
1002 static snd_kcontrol_new_t snd_cmipci_spdif_default __devinitdata =
1003 {
1004         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1005         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1006         .info =         snd_cmipci_spdif_default_info,
1007         .get =          snd_cmipci_spdif_default_get,
1008         .put =          snd_cmipci_spdif_default_put
1009 };
1010
1011 static int snd_cmipci_spdif_mask_info(snd_kcontrol_t *kcontrol,
1012                                       snd_ctl_elem_info_t *uinfo)
1013 {
1014         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1015         uinfo->count = 1;
1016         return 0;
1017 }
1018
1019 static int snd_cmipci_spdif_mask_get(snd_kcontrol_t * kcontrol,
1020                                      snd_ctl_elem_value_t *ucontrol)
1021 {
1022         ucontrol->value.iec958.status[0] = 0xff;
1023         ucontrol->value.iec958.status[1] = 0xff;
1024         ucontrol->value.iec958.status[2] = 0xff;
1025         ucontrol->value.iec958.status[3] = 0xff;
1026         return 0;
1027 }
1028
1029 static snd_kcontrol_new_t snd_cmipci_spdif_mask __devinitdata =
1030 {
1031         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1032         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
1033         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1034         .info =         snd_cmipci_spdif_mask_info,
1035         .get =          snd_cmipci_spdif_mask_get,
1036 };
1037
1038 static int snd_cmipci_spdif_stream_info(snd_kcontrol_t *kcontrol,
1039                                         snd_ctl_elem_info_t *uinfo)
1040 {
1041         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1042         uinfo->count = 1;
1043         return 0;
1044 }
1045
1046 static int snd_cmipci_spdif_stream_get(snd_kcontrol_t *kcontrol,
1047                                        snd_ctl_elem_value_t *ucontrol)
1048 {
1049         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
1050         int i;
1051
1052         spin_lock_irq(&chip->reg_lock);
1053         for (i = 0; i < 4; i++)
1054                 ucontrol->value.iec958.status[i] = (chip->dig_pcm_status >> (i * 8)) & 0xff;
1055         spin_unlock_irq(&chip->reg_lock);
1056         return 0;
1057 }
1058
1059 static int snd_cmipci_spdif_stream_put(snd_kcontrol_t *kcontrol,
1060                                        snd_ctl_elem_value_t *ucontrol)
1061 {
1062         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
1063         int i, change;
1064         unsigned int val;
1065
1066         val = 0;
1067         spin_lock_irq(&chip->reg_lock);
1068         for (i = 0; i < 4; i++)
1069                 val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
1070         change = val != chip->dig_pcm_status;
1071         chip->dig_pcm_status = val;
1072         spin_unlock_irq(&chip->reg_lock);
1073         return change;
1074 }
1075
1076 static snd_kcontrol_new_t snd_cmipci_spdif_stream __devinitdata =
1077 {
1078         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1079         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1080         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
1081         .info =         snd_cmipci_spdif_stream_info,
1082         .get =          snd_cmipci_spdif_stream_get,
1083         .put =          snd_cmipci_spdif_stream_put
1084 };
1085
1086 /*
1087  */
1088
1089 /* save mixer setting and mute for AC3 playback */
1090 static int save_mixer_state(cmipci_t *cm)
1091 {
1092         if (! cm->mixer_insensitive) {
1093                 snd_ctl_elem_value_t *val;
1094                 unsigned int i;
1095
1096                 val = kmalloc(sizeof(*val), GFP_ATOMIC);
1097                 if (!val)
1098                         return -ENOMEM;
1099                 for (i = 0; i < CM_SAVED_MIXERS; i++) {
1100                         snd_kcontrol_t *ctl = cm->mixer_res_ctl[i];
1101                         if (ctl) {
1102                                 int event;
1103                                 memset(val, 0, sizeof(*val));
1104                                 ctl->get(ctl, val);
1105                                 cm->mixer_res_status[i] = val->value.integer.value[0];
1106                                 val->value.integer.value[0] = cm_saved_mixer[i].toggle_on;
1107                                 event = SNDRV_CTL_EVENT_MASK_INFO;
1108                                 if (cm->mixer_res_status[i] != val->value.integer.value[0]) {
1109                                         ctl->put(ctl, val); /* toggle */
1110                                         event |= SNDRV_CTL_EVENT_MASK_VALUE;
1111                                 }
1112                                 ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1113                                 snd_ctl_notify(cm->card, event, &ctl->id);
1114                         }
1115                 }
1116                 kfree(val);
1117                 cm->mixer_insensitive = 1;
1118         }
1119         return 0;
1120 }
1121
1122
1123 /* restore the previously saved mixer status */
1124 static void restore_mixer_state(cmipci_t *cm)
1125 {
1126         if (cm->mixer_insensitive) {
1127                 snd_ctl_elem_value_t *val;
1128                 unsigned int i;
1129
1130                 val = kmalloc(sizeof(*val), GFP_KERNEL);
1131                 if (!val)
1132                         return;
1133                 cm->mixer_insensitive = 0; /* at first clear this;
1134                                               otherwise the changes will be ignored */
1135                 for (i = 0; i < CM_SAVED_MIXERS; i++) {
1136                         snd_kcontrol_t *ctl = cm->mixer_res_ctl[i];
1137                         if (ctl) {
1138                                 int event;
1139
1140                                 memset(val, 0, sizeof(*val));
1141                                 ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1142                                 ctl->get(ctl, val);
1143                                 event = SNDRV_CTL_EVENT_MASK_INFO;
1144                                 if (val->value.integer.value[0] != cm->mixer_res_status[i]) {
1145                                         val->value.integer.value[0] = cm->mixer_res_status[i];
1146                                         ctl->put(ctl, val);
1147                                         event |= SNDRV_CTL_EVENT_MASK_VALUE;
1148                                 }
1149                                 snd_ctl_notify(cm->card, event, &ctl->id);
1150                         }
1151                 }
1152                 kfree(val);
1153         }
1154 }
1155
1156 /* spinlock held! */
1157 static void setup_ac3(cmipci_t *cm, snd_pcm_substream_t *subs, int do_ac3, int rate)
1158 {
1159         if (do_ac3) {
1160                 /* AC3EN for 037 */
1161                 snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_AC3EN1);
1162                 /* AC3EN for 039 */
1163                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_AC3EN2);
1164         
1165                 if (cm->can_ac3_hw) {
1166                         /* SPD24SEL for 037, 0x02 */
1167                         /* SPD24SEL for 039, 0x20, but cannot be set */
1168                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1169                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1170                 } else { /* can_ac3_sw */
1171                         /* SPD32SEL for 037 & 039, 0x20 */
1172                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1173                         /* set 176K sample rate to fix 033 HW bug */
1174                         if (cm->chip_version == 33) {
1175                                 if (rate >= 48000) {
1176                                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1177                                 } else {
1178                                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1179                                 }
1180                         }
1181                 }
1182
1183         } else {
1184                 snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_AC3EN1);
1185                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_AC3EN2);
1186
1187                 if (cm->can_ac3_hw) {
1188                         /* chip model >= 37 */
1189                         if (snd_pcm_format_width(subs->runtime->format) > 16) {
1190                                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1191                                 snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1192                         } else {
1193                                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1194                                 snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1195                         }
1196                 } else {
1197                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1198                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1199                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1200                 }
1201         }
1202 }
1203
1204 static int setup_spdif_playback(cmipci_t *cm, snd_pcm_substream_t *subs, int up, int do_ac3)
1205 {
1206         int rate, err;
1207
1208         rate = subs->runtime->rate;
1209
1210         if (up && do_ac3)
1211                 if ((err = save_mixer_state(cm)) < 0)
1212                         return err;
1213
1214         spin_lock_irq(&cm->reg_lock);
1215         cm->spdif_playback_avail = up;
1216         if (up) {
1217                 /* they are controlled via "IEC958 Output Switch" */
1218                 /* snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); */
1219                 /* snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_SPDO2DAC); */
1220                 if (cm->spdif_playback_enabled)
1221                         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
1222                 setup_ac3(cm, subs, do_ac3, rate);
1223
1224                 if (rate == 48000)
1225                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
1226                 else
1227                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
1228
1229         } else {
1230                 /* they are controlled via "IEC958 Output Switch" */
1231                 /* snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); */
1232                 /* snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_SPDO2DAC); */
1233                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
1234                 setup_ac3(cm, subs, 0, 0);
1235         }
1236         spin_unlock_irq(&cm->reg_lock);
1237         return 0;
1238 }
1239
1240
1241 /*
1242  * preparation
1243  */
1244
1245 /* playback - enable spdif only on the certain condition */
1246 static int snd_cmipci_playback_prepare(snd_pcm_substream_t *substream)
1247 {
1248         cmipci_t *cm = snd_pcm_substream_chip(substream);
1249         int rate = substream->runtime->rate;
1250         int err, do_spdif, do_ac3 = 0;
1251
1252         do_spdif = ((rate == 44100 || rate == 48000) &&
1253                     substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE &&
1254                     substream->runtime->channels == 2);
1255         if (do_spdif && cm->can_ac3_hw) 
1256                 do_ac3 = cm->dig_pcm_status & IEC958_AES0_NONAUDIO;
1257         if ((err = setup_spdif_playback(cm, substream, do_spdif, do_ac3)) < 0)
1258                 return err;
1259         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_PLAY], substream);
1260 }
1261
1262 /* playback  (via device #2) - enable spdif always */
1263 static int snd_cmipci_playback_spdif_prepare(snd_pcm_substream_t *substream)
1264 {
1265         cmipci_t *cm = snd_pcm_substream_chip(substream);
1266         int err, do_ac3;
1267
1268         if (cm->can_ac3_hw) 
1269                 do_ac3 = cm->dig_pcm_status & IEC958_AES0_NONAUDIO;
1270         else
1271                 do_ac3 = 1; /* doesn't matter */
1272         if ((err = setup_spdif_playback(cm, substream, 1, do_ac3)) < 0)
1273                 return err;
1274         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_PLAY], substream);
1275 }
1276
1277 static int snd_cmipci_playback_hw_free(snd_pcm_substream_t *substream)
1278 {
1279         cmipci_t *cm = snd_pcm_substream_chip(substream);
1280         setup_spdif_playback(cm, substream, 0, 0);
1281         restore_mixer_state(cm);
1282         return snd_cmipci_hw_free(substream);
1283 }
1284
1285 /* capture */
1286 static int snd_cmipci_capture_prepare(snd_pcm_substream_t *substream)
1287 {
1288         cmipci_t *cm = snd_pcm_substream_chip(substream);
1289         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_CAPT], substream);
1290 }
1291
1292 /* capture with spdif (via device #2) */
1293 static int snd_cmipci_capture_spdif_prepare(snd_pcm_substream_t *substream)
1294 {
1295         cmipci_t *cm = snd_pcm_substream_chip(substream);
1296
1297         spin_lock_irq(&cm->reg_lock);
1298         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_CAPTURE_SPDF);
1299         spin_unlock_irq(&cm->reg_lock);
1300
1301         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_CAPT], substream);
1302 }
1303
1304 static int snd_cmipci_capture_spdif_hw_free(snd_pcm_substream_t *subs)
1305 {
1306         cmipci_t *cm = snd_pcm_substream_chip(subs);
1307
1308         spin_lock_irq(&cm->reg_lock);
1309         snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_CAPTURE_SPDF);
1310         spin_unlock_irq(&cm->reg_lock);
1311
1312         return snd_cmipci_hw_free(subs);
1313 }
1314
1315
1316 /*
1317  * interrupt handler
1318  */
1319 static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1320 {
1321         cmipci_t *cm = dev_id;
1322         unsigned int status, mask = 0;
1323         
1324         /* fastpath out, to ease interrupt sharing */
1325         status = snd_cmipci_read(cm, CM_REG_INT_STATUS);
1326         if (!(status & CM_INTR))
1327                 return IRQ_NONE;
1328
1329         /* acknowledge interrupt */
1330         spin_lock(&cm->reg_lock);
1331         if (status & CM_CHINT0)
1332                 mask |= CM_CH0_INT_EN;
1333         if (status & CM_CHINT1)
1334                 mask |= CM_CH1_INT_EN;
1335         snd_cmipci_clear_bit(cm, CM_REG_INT_HLDCLR, mask);
1336         snd_cmipci_set_bit(cm, CM_REG_INT_HLDCLR, mask);
1337         spin_unlock(&cm->reg_lock);
1338
1339         if (cm->rmidi && (status & CM_UARTINT))
1340                 snd_mpu401_uart_interrupt(irq, cm->rmidi->private_data, regs);
1341
1342         if (cm->pcm) {
1343                 if ((status & CM_CHINT0) && cm->channel[0].running)
1344                         snd_pcm_period_elapsed(cm->channel[0].substream);
1345                 if ((status & CM_CHINT1) && cm->channel[1].running)
1346                         snd_pcm_period_elapsed(cm->channel[1].substream);
1347         }
1348         return IRQ_HANDLED;
1349 }
1350
1351 /*
1352  * h/w infos
1353  */
1354
1355 /* playback on channel A */
1356 static snd_pcm_hardware_t snd_cmipci_playback =
1357 {
1358         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1359                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1360                                  SNDRV_PCM_INFO_MMAP_VALID),
1361         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1362         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1363         .rate_min =             5512,
1364         .rate_max =             48000,
1365         .channels_min =         1,
1366         .channels_max =         2,
1367         .buffer_bytes_max =     (128*1024),
1368         .period_bytes_min =     64,
1369         .period_bytes_max =     (128*1024),
1370         .periods_min =          2,
1371         .periods_max =          1024,
1372         .fifo_size =            0,
1373 };
1374
1375 /* capture on channel B */
1376 static snd_pcm_hardware_t snd_cmipci_capture =
1377 {
1378         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1379                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1380                                  SNDRV_PCM_INFO_MMAP_VALID),
1381         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1382         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1383         .rate_min =             5512,
1384         .rate_max =             48000,
1385         .channels_min =         1,
1386         .channels_max =         2,
1387         .buffer_bytes_max =     (128*1024),
1388         .period_bytes_min =     64,
1389         .period_bytes_max =     (128*1024),
1390         .periods_min =          2,
1391         .periods_max =          1024,
1392         .fifo_size =            0,
1393 };
1394
1395 /* playback on channel B - stereo 16bit only? */
1396 static snd_pcm_hardware_t snd_cmipci_playback2 =
1397 {
1398         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1399                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1400                                  SNDRV_PCM_INFO_MMAP_VALID),
1401         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1402         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1403         .rate_min =             5512,
1404         .rate_max =             48000,
1405         .channels_min =         2,
1406         .channels_max =         2,
1407         .buffer_bytes_max =     (128*1024),
1408         .period_bytes_min =     64,
1409         .period_bytes_max =     (128*1024),
1410         .periods_min =          2,
1411         .periods_max =          1024,
1412         .fifo_size =            0,
1413 };
1414
1415 /* spdif playback on channel A */
1416 static snd_pcm_hardware_t snd_cmipci_playback_spdif =
1417 {
1418         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1419                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1420                                  SNDRV_PCM_INFO_MMAP_VALID),
1421         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1422         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1423         .rate_min =             44100,
1424         .rate_max =             48000,
1425         .channels_min =         2,
1426         .channels_max =         2,
1427         .buffer_bytes_max =     (128*1024),
1428         .period_bytes_min =     64,
1429         .period_bytes_max =     (128*1024),
1430         .periods_min =          2,
1431         .periods_max =          1024,
1432         .fifo_size =            0,
1433 };
1434
1435 /* spdif playback on channel A (32bit, IEC958 subframes) */
1436 static snd_pcm_hardware_t snd_cmipci_playback_iec958_subframe =
1437 {
1438         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1439                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1440                                  SNDRV_PCM_INFO_MMAP_VALID),
1441         .formats =              SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
1442         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1443         .rate_min =             44100,
1444         .rate_max =             48000,
1445         .channels_min =         2,
1446         .channels_max =         2,
1447         .buffer_bytes_max =     (128*1024),
1448         .period_bytes_min =     64,
1449         .period_bytes_max =     (128*1024),
1450         .periods_min =          2,
1451         .periods_max =          1024,
1452         .fifo_size =            0,
1453 };
1454
1455 /* spdif capture on channel B */
1456 static snd_pcm_hardware_t snd_cmipci_capture_spdif =
1457 {
1458         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1459                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1460                                  SNDRV_PCM_INFO_MMAP_VALID),
1461         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1462         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1463         .rate_min =             44100,
1464         .rate_max =             48000,
1465         .channels_min =         2,
1466         .channels_max =         2,
1467         .buffer_bytes_max =     (128*1024),
1468         .period_bytes_min =     64,
1469         .period_bytes_max =     (128*1024),
1470         .periods_min =          2,
1471         .periods_max =          1024,
1472         .fifo_size =            0,
1473 };
1474
1475 /*
1476  * check device open/close
1477  */
1478 static int open_device_check(cmipci_t *cm, int mode, snd_pcm_substream_t *subs)
1479 {
1480         int ch = mode & CM_OPEN_CH_MASK;
1481
1482         /* FIXME: a file should wait until the device becomes free
1483          * when it's opened on blocking mode.  however, since the current
1484          * pcm framework doesn't pass file pointer before actually opened,
1485          * we can't know whether blocking mode or not in open callback..
1486          */
1487         down(&cm->open_mutex);
1488         if (cm->opened[ch]) {
1489                 up(&cm->open_mutex);
1490                 return -EBUSY;
1491         }
1492         cm->opened[ch] = mode;
1493         cm->channel[ch].substream = subs;
1494         if (! (mode & CM_OPEN_DAC)) {
1495                 /* disable dual DAC mode */
1496                 cm->channel[ch].is_dac = 0;
1497                 spin_lock_irq(&cm->reg_lock);
1498                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC);
1499                 spin_unlock_irq(&cm->reg_lock);
1500         }
1501         up(&cm->open_mutex);
1502         return 0;
1503 }
1504
1505 static void close_device_check(cmipci_t *cm, int mode)
1506 {
1507         int ch = mode & CM_OPEN_CH_MASK;
1508
1509         down(&cm->open_mutex);
1510         if (cm->opened[ch] == mode) {
1511                 if (cm->channel[ch].substream) {
1512                         snd_cmipci_ch_reset(cm, ch);
1513                         cm->channel[ch].running = 0;
1514                         cm->channel[ch].substream = NULL;
1515                 }
1516                 cm->opened[ch] = 0;
1517                 if (! cm->channel[ch].is_dac) {
1518                         /* enable dual DAC mode again */
1519                         cm->channel[ch].is_dac = 1;
1520                         spin_lock_irq(&cm->reg_lock);
1521                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC);
1522                         spin_unlock_irq(&cm->reg_lock);
1523                 }
1524         }
1525         up(&cm->open_mutex);
1526 }
1527
1528 /*
1529  */
1530
1531 static int snd_cmipci_playback_open(snd_pcm_substream_t *substream)
1532 {
1533         cmipci_t *cm = snd_pcm_substream_chip(substream);
1534         snd_pcm_runtime_t *runtime = substream->runtime;
1535         int err;
1536
1537         if ((err = open_device_check(cm, CM_OPEN_PLAYBACK, substream)) < 0)
1538                 return err;
1539         runtime->hw = snd_cmipci_playback;
1540         runtime->hw.channels_max = cm->max_channels;
1541         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1542         cm->dig_pcm_status = cm->dig_status;
1543         return 0;
1544 }
1545
1546 static int snd_cmipci_capture_open(snd_pcm_substream_t *substream)
1547 {
1548         cmipci_t *cm = snd_pcm_substream_chip(substream);
1549         snd_pcm_runtime_t *runtime = substream->runtime;
1550         int err;
1551
1552         if ((err = open_device_check(cm, CM_OPEN_CAPTURE, substream)) < 0)
1553                 return err;
1554         runtime->hw = snd_cmipci_capture;
1555         if (cm->chip_version == 68) {   // 8768 only supports 44k/48k recording
1556                 runtime->hw.rate_min = 41000;
1557                 runtime->hw.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000;
1558         }
1559         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1560         return 0;
1561 }
1562
1563 static int snd_cmipci_playback2_open(snd_pcm_substream_t *substream)
1564 {
1565         cmipci_t *cm = snd_pcm_substream_chip(substream);
1566         snd_pcm_runtime_t *runtime = substream->runtime;
1567         int err;
1568
1569         if ((err = open_device_check(cm, CM_OPEN_PLAYBACK2, substream)) < 0) /* use channel B */
1570                 return err;
1571         runtime->hw = snd_cmipci_playback2;
1572         down(&cm->open_mutex);
1573         if (! cm->opened[CM_CH_PLAY]) {
1574                 if (cm->can_multi_ch) {
1575                         runtime->hw.channels_max = cm->max_channels;
1576                         if (cm->max_channels == 4)
1577                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_4);
1578                         else if (cm->max_channels == 6)
1579                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_6);
1580                         else if (cm->max_channels == 8)
1581                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_8);
1582                 }
1583                 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1584         }
1585         up(&cm->open_mutex);
1586         return 0;
1587 }
1588
1589 static int snd_cmipci_playback_spdif_open(snd_pcm_substream_t *substream)
1590 {
1591         cmipci_t *cm = snd_pcm_substream_chip(substream);
1592         snd_pcm_runtime_t *runtime = substream->runtime;
1593         int err;
1594
1595         if ((err = open_device_check(cm, CM_OPEN_SPDIF_PLAYBACK, substream)) < 0) /* use channel A */
1596                 return err;
1597         if (cm->can_ac3_hw) {
1598                 runtime->hw = snd_cmipci_playback_spdif;
1599                 if (cm->chip_version >= 37)
1600                         runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1601         } else {
1602                 runtime->hw = snd_cmipci_playback_iec958_subframe;
1603         }
1604         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x40000);
1605         cm->dig_pcm_status = cm->dig_status;
1606         return 0;
1607 }
1608
1609 static int snd_cmipci_capture_spdif_open(snd_pcm_substream_t * substream)
1610 {
1611         cmipci_t *cm = snd_pcm_substream_chip(substream);
1612         snd_pcm_runtime_t *runtime = substream->runtime;
1613         int err;
1614
1615         if ((err = open_device_check(cm, CM_OPEN_SPDIF_CAPTURE, substream)) < 0) /* use channel B */
1616                 return err;
1617         runtime->hw = snd_cmipci_capture_spdif;
1618         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x40000);
1619         return 0;
1620 }
1621
1622
1623 /*
1624  */
1625
1626 static int snd_cmipci_playback_close(snd_pcm_substream_t * substream)
1627 {
1628         cmipci_t *cm = snd_pcm_substream_chip(substream);
1629         close_device_check(cm, CM_OPEN_PLAYBACK);
1630         return 0;
1631 }
1632
1633 static int snd_cmipci_capture_close(snd_pcm_substream_t * substream)
1634 {
1635         cmipci_t *cm = snd_pcm_substream_chip(substream);
1636         close_device_check(cm, CM_OPEN_CAPTURE);
1637         return 0;
1638 }
1639
1640 static int snd_cmipci_playback2_close(snd_pcm_substream_t * substream)
1641 {
1642         cmipci_t *cm = snd_pcm_substream_chip(substream);
1643         close_device_check(cm, CM_OPEN_PLAYBACK2);
1644         close_device_check(cm, CM_OPEN_PLAYBACK_MULTI);
1645         return 0;
1646 }
1647
1648 static int snd_cmipci_playback_spdif_close(snd_pcm_substream_t * substream)
1649 {
1650         cmipci_t *cm = snd_pcm_substream_chip(substream);
1651         close_device_check(cm, CM_OPEN_SPDIF_PLAYBACK);
1652         return 0;
1653 }
1654
1655 static int snd_cmipci_capture_spdif_close(snd_pcm_substream_t * substream)
1656 {
1657         cmipci_t *cm = snd_pcm_substream_chip(substream);
1658         close_device_check(cm, CM_OPEN_SPDIF_CAPTURE);
1659         return 0;
1660 }
1661
1662
1663 /*
1664  */
1665
1666 static snd_pcm_ops_t snd_cmipci_playback_ops = {
1667         .open =         snd_cmipci_playback_open,
1668         .close =        snd_cmipci_playback_close,
1669         .ioctl =        snd_pcm_lib_ioctl,
1670         .hw_params =    snd_cmipci_hw_params,
1671         .hw_free =      snd_cmipci_playback_hw_free,
1672         .prepare =      snd_cmipci_playback_prepare,
1673         .trigger =      snd_cmipci_playback_trigger,
1674         .pointer =      snd_cmipci_playback_pointer,
1675 };
1676
1677 static snd_pcm_ops_t snd_cmipci_capture_ops = {
1678         .open =         snd_cmipci_capture_open,
1679         .close =        snd_cmipci_capture_close,
1680         .ioctl =        snd_pcm_lib_ioctl,
1681         .hw_params =    snd_cmipci_hw_params,
1682         .hw_free =      snd_cmipci_hw_free,
1683         .prepare =      snd_cmipci_capture_prepare,
1684         .trigger =      snd_cmipci_capture_trigger,
1685         .pointer =      snd_cmipci_capture_pointer,
1686 };
1687
1688 static snd_pcm_ops_t snd_cmipci_playback2_ops = {
1689         .open =         snd_cmipci_playback2_open,
1690         .close =        snd_cmipci_playback2_close,
1691         .ioctl =        snd_pcm_lib_ioctl,
1692         .hw_params =    snd_cmipci_playback2_hw_params,
1693         .hw_free =      snd_cmipci_hw_free,
1694         .prepare =      snd_cmipci_capture_prepare,     /* channel B */
1695         .trigger =      snd_cmipci_capture_trigger,     /* channel B */
1696         .pointer =      snd_cmipci_capture_pointer,     /* channel B */
1697 };
1698
1699 static snd_pcm_ops_t snd_cmipci_playback_spdif_ops = {
1700         .open =         snd_cmipci_playback_spdif_open,
1701         .close =        snd_cmipci_playback_spdif_close,
1702         .ioctl =        snd_pcm_lib_ioctl,
1703         .hw_params =    snd_cmipci_hw_params,
1704         .hw_free =      snd_cmipci_playback_hw_free,
1705         .prepare =      snd_cmipci_playback_spdif_prepare,      /* set up rate */
1706         .trigger =      snd_cmipci_playback_trigger,
1707         .pointer =      snd_cmipci_playback_pointer,
1708 };
1709
1710 static snd_pcm_ops_t snd_cmipci_capture_spdif_ops = {
1711         .open =         snd_cmipci_capture_spdif_open,
1712         .close =        snd_cmipci_capture_spdif_close,
1713         .ioctl =        snd_pcm_lib_ioctl,
1714         .hw_params =    snd_cmipci_hw_params,
1715         .hw_free =      snd_cmipci_capture_spdif_hw_free,
1716         .prepare =      snd_cmipci_capture_spdif_prepare,
1717         .trigger =      snd_cmipci_capture_trigger,
1718         .pointer =      snd_cmipci_capture_pointer,
1719 };
1720
1721
1722 /*
1723  */
1724
1725 static void snd_cmipci_pcm_free(snd_pcm_t *pcm)
1726 {
1727         snd_pcm_lib_preallocate_free_for_all(pcm);
1728 }
1729
1730 static int __devinit snd_cmipci_pcm_new(cmipci_t *cm, int device)
1731 {
1732         snd_pcm_t *pcm;
1733         int err;
1734
1735         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 1, &pcm);
1736         if (err < 0)
1737                 return err;
1738
1739         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback_ops);
1740         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cmipci_capture_ops);
1741
1742         pcm->private_data = cm;
1743         pcm->private_free = snd_cmipci_pcm_free;
1744         pcm->info_flags = 0;
1745         strcpy(pcm->name, "C-Media PCI DAC/ADC");
1746         cm->pcm = pcm;
1747
1748         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1749                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1750
1751         return 0;
1752 }
1753
1754 static int __devinit snd_cmipci_pcm2_new(cmipci_t *cm, int device)
1755 {
1756         snd_pcm_t *pcm;
1757         int err;
1758
1759         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 0, &pcm);
1760         if (err < 0)
1761                 return err;
1762
1763         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback2_ops);
1764
1765         pcm->private_data = cm;
1766         pcm->private_free = snd_cmipci_pcm_free;
1767         pcm->info_flags = 0;
1768         strcpy(pcm->name, "C-Media PCI 2nd DAC");
1769         cm->pcm2 = pcm;
1770
1771         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1772                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1773
1774         return 0;
1775 }
1776
1777 static int __devinit snd_cmipci_pcm_spdif_new(cmipci_t *cm, int device)
1778 {
1779         snd_pcm_t *pcm;
1780         int err;
1781
1782         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 1, &pcm);
1783         if (err < 0)
1784                 return err;
1785
1786         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback_spdif_ops);
1787         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cmipci_capture_spdif_ops);
1788
1789         pcm->private_data = cm;
1790         pcm->private_free = snd_cmipci_pcm_free;
1791         pcm->info_flags = 0;
1792         strcpy(pcm->name, "C-Media PCI IEC958");
1793         cm->pcm_spdif = pcm;
1794
1795         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1796                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1797
1798         return 0;
1799 }
1800
1801 /*
1802  * mixer interface:
1803  * - CM8338/8738 has a compatible mixer interface with SB16, but
1804  *   lack of some elements like tone control, i/o gain and AGC.
1805  * - Access to native registers:
1806  *   - A 3D switch
1807  *   - Output mute switches
1808  */
1809
1810 static void snd_cmipci_mixer_write(cmipci_t *s, unsigned char idx, unsigned char data)
1811 {
1812         outb(idx, s->iobase + CM_REG_SB16_ADDR);
1813         outb(data, s->iobase + CM_REG_SB16_DATA);
1814 }
1815
1816 static unsigned char snd_cmipci_mixer_read(cmipci_t *s, unsigned char idx)
1817 {
1818         unsigned char v;
1819
1820         outb(idx, s->iobase + CM_REG_SB16_ADDR);
1821         v = inb(s->iobase + CM_REG_SB16_DATA);
1822         return v;
1823 }
1824
1825 /*
1826  * general mixer element
1827  */
1828 typedef struct cmipci_sb_reg {
1829         unsigned int left_reg, right_reg;
1830         unsigned int left_shift, right_shift;
1831         unsigned int mask;
1832         unsigned int invert: 1;
1833         unsigned int stereo: 1;
1834 } cmipci_sb_reg_t;
1835
1836 #define COMPOSE_SB_REG(lreg,rreg,lshift,rshift,mask,invert,stereo) \
1837  ((lreg) | ((rreg) << 8) | (lshift << 16) | (rshift << 19) | (mask << 24) | (invert << 22) | (stereo << 23))
1838
1839 #define CMIPCI_DOUBLE(xname, left_reg, right_reg, left_shift, right_shift, mask, invert, stereo) \
1840 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1841   .info = snd_cmipci_info_volume, \
1842   .get = snd_cmipci_get_volume, .put = snd_cmipci_put_volume, \
1843   .private_value = COMPOSE_SB_REG(left_reg, right_reg, left_shift, right_shift, mask, invert, stereo), \
1844 }
1845
1846 #define CMIPCI_SB_VOL_STEREO(xname,reg,shift,mask) CMIPCI_DOUBLE(xname, reg, reg+1, shift, shift, mask, 0, 1)
1847 #define CMIPCI_SB_VOL_MONO(xname,reg,shift,mask) CMIPCI_DOUBLE(xname, reg, reg, shift, shift, mask, 0, 0)
1848 #define CMIPCI_SB_SW_STEREO(xname,lshift,rshift) CMIPCI_DOUBLE(xname, SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, lshift, rshift, 1, 0, 1)
1849 #define CMIPCI_SB_SW_MONO(xname,shift) CMIPCI_DOUBLE(xname, SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, shift, shift, 1, 0, 0)
1850
1851 static void cmipci_sb_reg_decode(cmipci_sb_reg_t *r, unsigned long val)
1852 {
1853         r->left_reg = val & 0xff;
1854         r->right_reg = (val >> 8) & 0xff;
1855         r->left_shift = (val >> 16) & 0x07;
1856         r->right_shift = (val >> 19) & 0x07;
1857         r->invert = (val >> 22) & 1;
1858         r->stereo = (val >> 23) & 1;
1859         r->mask = (val >> 24) & 0xff;
1860 }
1861
1862 static int snd_cmipci_info_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
1863 {
1864         cmipci_sb_reg_t reg;
1865
1866         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1867         uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1868         uinfo->count = reg.stereo + 1;
1869         uinfo->value.integer.min = 0;
1870         uinfo->value.integer.max = reg.mask;
1871         return 0;
1872 }
1873  
1874 static int snd_cmipci_get_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1875 {
1876         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
1877         cmipci_sb_reg_t reg;
1878         int val;
1879
1880         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1881         spin_lock_irq(&cm->reg_lock);
1882         val = (snd_cmipci_mixer_read(cm, reg.left_reg) >> reg.left_shift) & reg.mask;
1883         if (reg.invert)
1884                 val = reg.mask - val;
1885         ucontrol->value.integer.value[0] = val;
1886         if (reg.stereo) {
1887                 val = (snd_cmipci_mixer_read(cm, reg.right_reg) >> reg.right_shift) & reg.mask;
1888                 if (reg.invert)
1889                         val = reg.mask - val;
1890                  ucontrol->value.integer.value[1] = val;
1891         }
1892         spin_unlock_irq(&cm->reg_lock);
1893         return 0;
1894 }
1895
1896 static int snd_cmipci_put_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1897 {
1898         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
1899         cmipci_sb_reg_t reg;
1900         int change;
1901         int left, right, oleft, oright;
1902
1903         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1904         left = ucontrol->value.integer.value[0] & reg.mask;
1905         if (reg.invert)
1906                 left = reg.mask - left;
1907         left <<= reg.left_shift;
1908         if (reg.stereo) {
1909                 right = ucontrol->value.integer.value[1] & reg.mask;
1910                 if (reg.invert)
1911                         right = reg.mask - right;
1912                 right <<= reg.right_shift;
1913         } else
1914                 right = 0;
1915         spin_lock_irq(&cm->reg_lock);
1916         oleft = snd_cmipci_mixer_read(cm, reg.left_reg);
1917         left |= oleft & ~(reg.mask << reg.left_shift);
1918         change = left != oleft;
1919         if (reg.stereo) {
1920                 if (reg.left_reg != reg.right_reg) {
1921                         snd_cmipci_mixer_write(cm, reg.left_reg, left);
1922                         oright = snd_cmipci_mixer_read(cm, reg.right_reg);
1923                 } else
1924                         oright = left;
1925                 right |= oright & ~(reg.mask << reg.right_shift);
1926                 change |= right != oright;
1927                 snd_cmipci_mixer_write(cm, reg.right_reg, right);
1928         } else
1929                 snd_cmipci_mixer_write(cm, reg.left_reg, left);
1930         spin_unlock_irq(&cm->reg_lock);
1931         return change;
1932 }
1933
1934 /*
1935  * input route (left,right) -> (left,right)
1936  */
1937 #define CMIPCI_SB_INPUT_SW(xname, left_shift, right_shift) \
1938 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1939   .info = snd_cmipci_info_input_sw, \
1940   .get = snd_cmipci_get_input_sw, .put = snd_cmipci_put_input_sw, \
1941   .private_value = COMPOSE_SB_REG(SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, left_shift, right_shift, 1, 0, 1), \
1942 }
1943
1944 static int snd_cmipci_info_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
1945 {
1946         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1947         uinfo->count = 4;
1948         uinfo->value.integer.min = 0;
1949         uinfo->value.integer.max = 1;
1950         return 0;
1951 }
1952  
1953 static int snd_cmipci_get_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1954 {
1955         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
1956         cmipci_sb_reg_t reg;
1957         int val1, val2;
1958
1959         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1960         spin_lock_irq(&cm->reg_lock);
1961         val1 = snd_cmipci_mixer_read(cm, reg.left_reg);
1962         val2 = snd_cmipci_mixer_read(cm, reg.right_reg);
1963         spin_unlock_irq(&cm->reg_lock);
1964         ucontrol->value.integer.value[0] = (val1 >> reg.left_shift) & 1;
1965         ucontrol->value.integer.value[1] = (val2 >> reg.left_shift) & 1;
1966         ucontrol->value.integer.value[2] = (val1 >> reg.right_shift) & 1;
1967         ucontrol->value.integer.value[3] = (val2 >> reg.right_shift) & 1;
1968         return 0;
1969 }
1970
1971 static int snd_cmipci_put_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1972 {
1973         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
1974         cmipci_sb_reg_t reg;
1975         int change;
1976         int val1, val2, oval1, oval2;
1977
1978         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1979         spin_lock_irq(&cm->reg_lock);
1980         oval1 = snd_cmipci_mixer_read(cm, reg.left_reg);
1981         oval2 = snd_cmipci_mixer_read(cm, reg.right_reg);
1982         val1 = oval1 & ~((1 << reg.left_shift) | (1 << reg.right_shift));
1983         val2 = oval2 & ~((1 << reg.left_shift) | (1 << reg.right_shift));
1984         val1 |= (ucontrol->value.integer.value[0] & 1) << reg.left_shift;
1985         val2 |= (ucontrol->value.integer.value[1] & 1) << reg.left_shift;
1986         val1 |= (ucontrol->value.integer.value[2] & 1) << reg.right_shift;
1987         val2 |= (ucontrol->value.integer.value[3] & 1) << reg.right_shift;
1988         change = val1 != oval1 || val2 != oval2;
1989         snd_cmipci_mixer_write(cm, reg.left_reg, val1);
1990         snd_cmipci_mixer_write(cm, reg.right_reg, val2);
1991         spin_unlock_irq(&cm->reg_lock);
1992         return change;
1993 }
1994
1995 /*
1996  * native mixer switches/volumes
1997  */
1998
1999 #define CMIPCI_MIXER_SW_STEREO(xname, reg, lshift, rshift, invert) \
2000 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
2001   .info = snd_cmipci_info_native_mixer, \
2002   .get = snd_cmipci_get_native_mixer, .put = snd_cmipci_put_native_mixer, \
2003   .private_value = COMPOSE_SB_REG(reg, reg, lshift, rshift, 1, invert, 1), \
2004 }
2005
2006 #define CMIPCI_MIXER_SW_MONO(xname, reg, shift, invert) \
2007 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
2008   .info = snd_cmipci_info_native_mixer, \
2009   .get = snd_cmipci_get_native_mixer, .put = snd_cmipci_put_native_mixer, \
2010   .private_value = COMPOSE_SB_REG(reg, reg, shift, shift, 1, invert, 0), \
2011 }
2012
2013 #define CMIPCI_MIXER_VOL_STEREO(xname, reg, lshift, rshift, mask) \
2014 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
2015   .info = snd_cmipci_info_native_mixer, \
2016   .get = snd_cmipci_get_native_mixer, .put = snd_cmipci_put_native_mixer, \
2017   .private_value = COMPOSE_SB_REG(reg, reg, lshift, rshift, mask, 0, 1), \
2018 }
2019
2020 #define CMIPCI_MIXER_VOL_MONO(xname, reg, shift, mask) \
2021 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
2022   .info = snd_cmipci_info_native_mixer, \
2023   .get = snd_cmipci_get_native_mixer, .put = snd_cmipci_put_native_mixer, \
2024   .private_value = COMPOSE_SB_REG(reg, reg, shift, shift, mask, 0, 0), \
2025 }
2026
2027 static int snd_cmipci_info_native_mixer(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
2028 {
2029         cmipci_sb_reg_t reg;
2030
2031         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
2032         uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
2033         uinfo->count = reg.stereo + 1;
2034         uinfo->value.integer.min = 0;
2035         uinfo->value.integer.max = reg.mask;
2036         return 0;
2037
2038 }
2039
2040 static int snd_cmipci_get_native_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
2041 {
2042         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2043         cmipci_sb_reg_t reg;
2044         unsigned char oreg, val;
2045
2046         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
2047         spin_lock_irq(&cm->reg_lock);
2048         oreg = inb(cm->iobase + reg.left_reg);
2049         val = (oreg >> reg.left_shift) & reg.mask;
2050         if (reg.invert)
2051                 val = reg.mask - val;
2052         ucontrol->value.integer.value[0] = val;
2053         if (reg.stereo) {
2054                 val = (oreg >> reg.right_shift) & reg.mask;
2055                 if (reg.invert)
2056                         val = reg.mask - val;
2057                 ucontrol->value.integer.value[1] = val;
2058         }
2059         spin_unlock_irq(&cm->reg_lock);
2060         return 0;
2061 }
2062
2063 static int snd_cmipci_put_native_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
2064 {
2065         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2066         cmipci_sb_reg_t reg;
2067         unsigned char oreg, nreg, val;
2068
2069         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
2070         spin_lock_irq(&cm->reg_lock);
2071         oreg = inb(cm->iobase + reg.left_reg);
2072         val = ucontrol->value.integer.value[0] & reg.mask;
2073         if (reg.invert)
2074                 val = reg.mask - val;
2075         nreg = oreg & ~(reg.mask << reg.left_shift);
2076         nreg |= (val << reg.left_shift);
2077         if (reg.stereo) {
2078                 val = ucontrol->value.integer.value[1] & reg.mask;
2079                 if (reg.invert)
2080                         val = reg.mask - val;
2081                 nreg &= ~(reg.mask << reg.right_shift);
2082                 nreg |= (val << reg.right_shift);
2083         }
2084         outb(nreg, cm->iobase + reg.left_reg);
2085         spin_unlock_irq(&cm->reg_lock);
2086         return (nreg != oreg);
2087 }
2088
2089 /*
2090  * special case - check mixer sensitivity
2091  */
2092 static int snd_cmipci_get_native_mixer_sensitive(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2093 {
2094         //cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2095         return snd_cmipci_get_native_mixer(kcontrol, ucontrol);
2096 }
2097
2098 static int snd_cmipci_put_native_mixer_sensitive(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2099 {
2100         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2101         if (cm->mixer_insensitive) {
2102                 /* ignored */
2103                 return 0;
2104         }
2105         return snd_cmipci_put_native_mixer(kcontrol, ucontrol);
2106 }
2107
2108
2109 static snd_kcontrol_new_t snd_cmipci_mixers[] __devinitdata = {
2110         CMIPCI_SB_VOL_STEREO("Master Playback Volume", SB_DSP4_MASTER_DEV, 3, 31),
2111         CMIPCI_MIXER_SW_MONO("3D Control - Switch", CM_REG_MIXER1, CM_X3DEN_SHIFT, 0),
2112         CMIPCI_SB_VOL_STEREO("PCM Playback Volume", SB_DSP4_PCM_DEV, 3, 31),
2113         //CMIPCI_MIXER_SW_MONO("PCM Playback Switch", CM_REG_MIXER1, CM_WSMUTE_SHIFT, 1),
2114         { /* switch with sensitivity */
2115                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2116                 .name = "PCM Playback Switch",
2117                 .info = snd_cmipci_info_native_mixer,
2118                 .get = snd_cmipci_get_native_mixer_sensitive,
2119                 .put = snd_cmipci_put_native_mixer_sensitive,
2120                 .private_value = COMPOSE_SB_REG(CM_REG_MIXER1, CM_REG_MIXER1, CM_WSMUTE_SHIFT, CM_WSMUTE_SHIFT, 1, 1, 0),
2121         },
2122         CMIPCI_MIXER_SW_STEREO("PCM Capture Switch", CM_REG_MIXER1, CM_WAVEINL_SHIFT, CM_WAVEINR_SHIFT, 0),
2123         CMIPCI_SB_VOL_STEREO("Synth Playback Volume", SB_DSP4_SYNTH_DEV, 3, 31),
2124         CMIPCI_MIXER_SW_MONO("Synth Playback Switch", CM_REG_MIXER1, CM_FMMUTE_SHIFT, 1),
2125         CMIPCI_SB_INPUT_SW("Synth Capture Route", 6, 5),
2126         CMIPCI_SB_VOL_STEREO("CD Playback Volume", SB_DSP4_CD_DEV, 3, 31),
2127         CMIPCI_SB_SW_STEREO("CD Playback Switch", 2, 1),
2128         CMIPCI_SB_INPUT_SW("CD Capture Route", 2, 1),
2129         CMIPCI_SB_VOL_STEREO("Line Playback Volume", SB_DSP4_LINE_DEV, 3, 31),
2130         CMIPCI_SB_SW_STEREO("Line Playback Switch", 4, 3),
2131         CMIPCI_SB_INPUT_SW("Line Capture Route", 4, 3),
2132         CMIPCI_SB_VOL_MONO("Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31),
2133         CMIPCI_SB_SW_MONO("Mic Playback Switch", 0),
2134         CMIPCI_DOUBLE("Mic Capture Switch", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 0, 0, 1, 0, 0),
2135         CMIPCI_SB_VOL_MONO("PC Speaker Playback Volume", SB_DSP4_SPEAKER_DEV, 6, 3),
2136         CMIPCI_MIXER_VOL_STEREO("Aux Playback Volume", CM_REG_AUX_VOL, 4, 0, 15),
2137         CMIPCI_MIXER_SW_STEREO("Aux Playback Switch", CM_REG_MIXER2, CM_VAUXLM_SHIFT, CM_VAUXRM_SHIFT, 0),
2138         CMIPCI_MIXER_SW_STEREO("Aux Capture Switch", CM_REG_MIXER2, CM_RAUXLEN_SHIFT, CM_RAUXREN_SHIFT, 0),
2139         CMIPCI_MIXER_SW_MONO("Mic Boost Playback Switch", CM_REG_MIXER2, CM_MICGAINZ_SHIFT, 1),
2140         CMIPCI_MIXER_VOL_MONO("Mic Capture Volume", CM_REG_MIXER2, CM_VADMIC_SHIFT, 7),
2141         CMIPCI_SB_VOL_MONO("Phone Playback Volume", CM_REG_EXTENT_IND, 5, 7),
2142         CMIPCI_DOUBLE("Phone Playback Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 4, 4, 1, 0, 0),
2143         CMIPCI_DOUBLE("PC Speaker Playnack Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 3, 3, 1, 0, 0),
2144         CMIPCI_DOUBLE("Mic Boost Capture Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 0, 0, 1, 0, 0),
2145 };
2146
2147 /*
2148  * other switches
2149  */
2150
2151 typedef struct snd_cmipci_switch_args {
2152         int reg;                /* register index */
2153         unsigned int mask;      /* mask bits */
2154         unsigned int mask_on;   /* mask bits to turn on */
2155         unsigned int is_byte: 1;                /* byte access? */
2156         unsigned int ac3_sensitive: 1;  /* access forbidden during non-audio operation? */
2157 } snd_cmipci_switch_args_t;
2158
2159 static int snd_cmipci_uswitch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
2160 {
2161         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2162         uinfo->count = 1;
2163         uinfo->value.integer.min = 0;
2164         uinfo->value.integer.max = 1;
2165         return 0;
2166 }
2167
2168 static int _snd_cmipci_uswitch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol, snd_cmipci_switch_args_t *args)
2169 {
2170         unsigned int val;
2171         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2172
2173         spin_lock_irq(&cm->reg_lock);
2174         if (args->ac3_sensitive && cm->mixer_insensitive) {
2175                 ucontrol->value.integer.value[0] = 0;
2176                 spin_unlock_irq(&cm->reg_lock);
2177                 return 0;
2178         }
2179         if (args->is_byte)
2180                 val = inb(cm->iobase + args->reg);
2181         else
2182                 val = snd_cmipci_read(cm, args->reg);
2183         ucontrol->value.integer.value[0] = ((val & args->mask) == args->mask_on) ? 1 : 0;
2184         spin_unlock_irq(&cm->reg_lock);
2185         return 0;
2186 }
2187
2188 static int snd_cmipci_uswitch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2189 {
2190         snd_cmipci_switch_args_t *args = (snd_cmipci_switch_args_t*)kcontrol->private_value;
2191         snd_assert(args != NULL, return -EINVAL);
2192         return _snd_cmipci_uswitch_get(kcontrol, ucontrol, args);
2193 }
2194
2195 static int _snd_cmipci_uswitch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol, snd_cmipci_switch_args_t *args)
2196 {
2197         unsigned int val;
2198         int change;
2199         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2200
2201         spin_lock_irq(&cm->reg_lock);
2202         if (args->ac3_sensitive && cm->mixer_insensitive) {
2203                 /* ignored */
2204                 spin_unlock_irq(&cm->reg_lock);
2205                 return 0;
2206         }
2207         if (args->is_byte)
2208                 val = inb(cm->iobase + args->reg);
2209         else
2210                 val = snd_cmipci_read(cm, args->reg);
2211         change = (val & args->mask) != (ucontrol->value.integer.value[0] ? args->mask : 0);
2212         if (change) {
2213                 val &= ~args->mask;
2214                 if (ucontrol->value.integer.value[0])
2215                         val |= args->mask_on;
2216                 else
2217                         val |= (args->mask & ~args->mask_on);
2218                 if (args->is_byte)
2219                         outb((unsigned char)val, cm->iobase + args->reg);
2220                 else
2221                         snd_cmipci_write(cm, args->reg, val);
2222         }
2223         spin_unlock_irq(&cm->reg_lock);
2224         return change;
2225 }
2226
2227 static int snd_cmipci_uswitch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2228 {
2229         snd_cmipci_switch_args_t *args = (snd_cmipci_switch_args_t*)kcontrol->private_value;
2230         snd_assert(args != NULL, return -EINVAL);
2231         return _snd_cmipci_uswitch_put(kcontrol, ucontrol, args);
2232 }
2233
2234 #define DEFINE_SWITCH_ARG(sname, xreg, xmask, xmask_on, xis_byte, xac3) \
2235 static snd_cmipci_switch_args_t cmipci_switch_arg_##sname = { \
2236   .reg = xreg, \
2237   .mask = xmask, \
2238   .mask_on = xmask_on, \
2239   .is_byte = xis_byte, \
2240   .ac3_sensitive = xac3, \
2241 }
2242         
2243 #define DEFINE_BIT_SWITCH_ARG(sname, xreg, xmask, xis_byte, xac3) \
2244         DEFINE_SWITCH_ARG(sname, xreg, xmask, xmask, xis_byte, xac3)
2245
2246 #if 0 /* these will be controlled in pcm device */
2247 DEFINE_BIT_SWITCH_ARG(spdif_in, CM_REG_FUNCTRL1, CM_SPDF_1, 0, 0);
2248 DEFINE_BIT_SWITCH_ARG(spdif_out, CM_REG_FUNCTRL1, CM_SPDF_0, 0, 0);
2249 #endif
2250 DEFINE_BIT_SWITCH_ARG(spdif_in_sel1, CM_REG_CHFORMAT, CM_SPDIF_SELECT1, 0, 0);
2251 DEFINE_BIT_SWITCH_ARG(spdif_in_sel2, CM_REG_MISC_CTRL, CM_SPDIF_SELECT2, 0, 0);
2252 DEFINE_BIT_SWITCH_ARG(spdif_enable, CM_REG_LEGACY_CTRL, CM_ENSPDOUT, 0, 0);
2253 DEFINE_BIT_SWITCH_ARG(spdo2dac, CM_REG_FUNCTRL1, CM_SPDO2DAC, 0, 1);
2254 DEFINE_BIT_SWITCH_ARG(spdi_valid, CM_REG_MISC, CM_SPDVALID, 1, 0);
2255 DEFINE_BIT_SWITCH_ARG(spdif_copyright, CM_REG_LEGACY_CTRL, CM_SPDCOPYRHT, 0, 0);
2256 DEFINE_BIT_SWITCH_ARG(spdif_dac_out, CM_REG_LEGACY_CTRL, CM_DAC2SPDO, 0, 1);
2257 DEFINE_SWITCH_ARG(spdo_5v, CM_REG_MISC_CTRL, CM_SPDO5V, 0, 0, 0); /* inverse: 0 = 5V */
2258 // DEFINE_BIT_SWITCH_ARG(spdo_48k, CM_REG_MISC_CTRL, CM_SPDF_AC97|CM_SPDIF48K, 0, 1);
2259 DEFINE_BIT_SWITCH_ARG(spdif_loop, CM_REG_FUNCTRL1, CM_SPDFLOOP, 0, 1);
2260 DEFINE_BIT_SWITCH_ARG(spdi_monitor, CM_REG_MIXER1, CM_CDPLAY, 1, 0);
2261 /* DEFINE_BIT_SWITCH_ARG(spdi_phase, CM_REG_CHFORMAT, CM_SPDIF_INVERSE, 0, 0); */
2262 DEFINE_BIT_SWITCH_ARG(spdi_phase, CM_REG_MISC, CM_SPDIF_INVERSE, 1, 0);
2263 DEFINE_BIT_SWITCH_ARG(spdi_phase2, CM_REG_CHFORMAT, CM_SPDIF_INVERSE2, 0, 0);
2264 #if CM_CH_PLAY == 1
2265 DEFINE_SWITCH_ARG(exchange_dac, CM_REG_MISC_CTRL, CM_XCHGDAC, 0, 0, 0); /* reversed */
2266 #else
2267 DEFINE_SWITCH_ARG(exchange_dac, CM_REG_MISC_CTRL, CM_XCHGDAC, CM_XCHGDAC, 0, 0);
2268 #endif
2269 DEFINE_BIT_SWITCH_ARG(fourch, CM_REG_MISC_CTRL, CM_N4SPK3D, 0, 0);
2270 // DEFINE_BIT_SWITCH_ARG(line_rear, CM_REG_MIXER1, CM_SPK4, 1, 0);
2271 // DEFINE_BIT_SWITCH_ARG(line_bass, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS, 0, 0);
2272 // DEFINE_BIT_SWITCH_ARG(joystick, CM_REG_FUNCTRL1, CM_JYSTK_EN, 0, 0); /* now module option */
2273 DEFINE_SWITCH_ARG(modem, CM_REG_MISC_CTRL, CM_FLINKON|CM_FLINKOFF, CM_FLINKON, 0, 0);
2274
2275 #define DEFINE_SWITCH(sname, stype, sarg) \
2276 { .name = sname, \
2277   .iface = stype, \
2278   .info = snd_cmipci_uswitch_info, \
2279   .get = snd_cmipci_uswitch_get, \
2280   .put = snd_cmipci_uswitch_put, \
2281   .private_value = (unsigned long)&cmipci_switch_arg_##sarg,\
2282 }
2283
2284 #define DEFINE_CARD_SWITCH(sname, sarg) DEFINE_SWITCH(sname, SNDRV_CTL_ELEM_IFACE_CARD, sarg)
2285 #define DEFINE_MIXER_SWITCH(sname, sarg) DEFINE_SWITCH(sname, SNDRV_CTL_ELEM_IFACE_MIXER, sarg)
2286
2287
2288 /*
2289  * callbacks for spdif output switch
2290  * needs toggle two registers..
2291  */
2292 static int snd_cmipci_spdout_enable_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2293 {
2294         int changed;
2295         changed = _snd_cmipci_uswitch_get(kcontrol, ucontrol, &cmipci_switch_arg_spdif_enable);
2296         changed |= _snd_cmipci_uswitch_get(kcontrol, ucontrol, &cmipci_switch_arg_spdo2dac);
2297         return changed;
2298 }
2299
2300 static int snd_cmipci_spdout_enable_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2301 {
2302         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
2303         int changed;
2304         changed = _snd_cmipci_uswitch_put(kcontrol, ucontrol, &cmipci_switch_arg_spdif_enable);
2305         changed |= _snd_cmipci_uswitch_put(kcontrol, ucontrol, &cmipci_switch_arg_spdo2dac);
2306         if (changed) {
2307                 if (ucontrol->value.integer.value[0]) {
2308                         if (chip->spdif_playback_avail)
2309                                 snd_cmipci_set_bit(chip, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
2310                 } else {
2311                         if (chip->spdif_playback_avail)
2312                                 snd_cmipci_clear_bit(chip, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
2313                 }
2314         }
2315         chip->spdif_playback_enabled = ucontrol->value.integer.value[0];
2316         return changed;
2317 }
2318
2319
2320 static int snd_cmipci_line_in_mode_info(snd_kcontrol_t *kcontrol,
2321                                         snd_ctl_elem_info_t *uinfo)
2322 {
2323         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2324         static char *texts[3] = { "Line-In", "Rear Output", "Bass Output" };
2325         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2326         uinfo->count = 1;
2327         uinfo->value.enumerated.items = cm->chip_version >= 39 ? 3 : 2;
2328         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2329                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2330         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2331         return 0;
2332 }
2333
2334 static inline unsigned int get_line_in_mode(cmipci_t *cm)
2335 {
2336         unsigned int val;
2337         if (cm->chip_version >= 39) {
2338                 val = snd_cmipci_read(cm, CM_REG_LEGACY_CTRL);
2339                 if (val & CM_LINE_AS_BASS)
2340                         return 2;
2341         }
2342         val = snd_cmipci_read_b(cm, CM_REG_MIXER1);
2343         if (val & CM_SPK4)
2344                 return 1;
2345         return 0;
2346 }
2347
2348 static int snd_cmipci_line_in_mode_get(snd_kcontrol_t *kcontrol,
2349                                        snd_ctl_elem_value_t *ucontrol)
2350 {
2351         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2352
2353         spin_lock_irq(&cm->reg_lock);
2354         ucontrol->value.enumerated.item[0] = get_line_in_mode(cm);
2355         spin_unlock_irq(&cm->reg_lock);
2356         return 0;
2357 }
2358
2359 static int snd_cmipci_line_in_mode_put(snd_kcontrol_t *kcontrol,
2360                                        snd_ctl_elem_value_t *ucontrol)
2361 {
2362         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2363         int change;
2364
2365         spin_lock_irq(&cm->reg_lock);
2366         if (ucontrol->value.enumerated.item[0] == 2)
2367                 change = snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS);
2368         else
2369                 change = snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS);
2370         if (ucontrol->value.enumerated.item[0] == 1)
2371                 change |= snd_cmipci_set_bit_b(cm, CM_REG_MIXER1, CM_SPK4);
2372         else
2373                 change |= snd_cmipci_clear_bit_b(cm, CM_REG_MIXER1, CM_SPK4);
2374         spin_unlock_irq(&cm->reg_lock);
2375         return change;
2376 }
2377
2378 static int snd_cmipci_mic_in_mode_info(snd_kcontrol_t *kcontrol,
2379                                        snd_ctl_elem_info_t *uinfo)
2380 {
2381         static char *texts[2] = { "Mic-In", "Center/LFE Output" };
2382         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2383         uinfo->count = 1;
2384         uinfo->value.enumerated.items = 2;
2385         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2386                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2387         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2388         return 0;
2389 }
2390
2391 static int snd_cmipci_mic_in_mode_get(snd_kcontrol_t *kcontrol,
2392                                       snd_ctl_elem_value_t *ucontrol)
2393 {
2394         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2395         /* same bit as spdi_phase */
2396         spin_lock_irq(&cm->reg_lock);
2397         ucontrol->value.enumerated.item[0] = 
2398                 (snd_cmipci_read_b(cm, CM_REG_MISC) & CM_SPDIF_INVERSE) ? 1 : 0;
2399         spin_unlock_irq(&cm->reg_lock);
2400         return 0;
2401 }
2402
2403 static int snd_cmipci_mic_in_mode_put(snd_kcontrol_t *kcontrol,
2404                                       snd_ctl_elem_value_t *ucontrol)
2405 {
2406         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2407         int change;
2408
2409         spin_lock_irq(&cm->reg_lock);
2410         if (ucontrol->value.enumerated.item[0])
2411                 change = snd_cmipci_set_bit_b(cm, CM_REG_MISC, CM_SPDIF_INVERSE);
2412         else
2413                 change = snd_cmipci_clear_bit_b(cm, CM_REG_MISC, CM_SPDIF_INVERSE);
2414         spin_unlock_irq(&cm->reg_lock);
2415         return change;
2416 }
2417
2418 /* both for CM8338/8738 */
2419 static snd_kcontrol_new_t snd_cmipci_mixer_switches[] __devinitdata = {
2420         DEFINE_MIXER_SWITCH("Four Channel Mode", fourch),
2421         {
2422                 .name = "Line-In Mode",
2423                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2424                 .info = snd_cmipci_line_in_mode_info,
2425                 .get = snd_cmipci_line_in_mode_get,
2426                 .put = snd_cmipci_line_in_mode_put,
2427         },
2428 };
2429
2430 /* for non-multichannel chips */
2431 static snd_kcontrol_new_t snd_cmipci_nomulti_switch __devinitdata =
2432 DEFINE_MIXER_SWITCH("Exchange DAC", exchange_dac);
2433
2434 /* only for CM8738 */
2435 static snd_kcontrol_new_t snd_cmipci_8738_mixer_switches[] __devinitdata = {
2436 #if 0 /* controlled in pcm device */
2437         DEFINE_MIXER_SWITCH("IEC958 In Record", spdif_in),
2438         DEFINE_MIXER_SWITCH("IEC958 Out", spdif_out),
2439         DEFINE_MIXER_SWITCH("IEC958 Out To DAC", spdo2dac),
2440 #endif
2441         // DEFINE_MIXER_SWITCH("IEC958 Output Switch", spdif_enable),
2442         { .name = "IEC958 Output Switch",
2443           .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2444           .info = snd_cmipci_uswitch_info,
2445           .get = snd_cmipci_spdout_enable_get,
2446           .put = snd_cmipci_spdout_enable_put,
2447         },
2448         DEFINE_MIXER_SWITCH("IEC958 In Valid", spdi_valid),
2449         DEFINE_MIXER_SWITCH("IEC958 Copyright", spdif_copyright),
2450         DEFINE_MIXER_SWITCH("IEC958 5V", spdo_5v),
2451 //      DEFINE_MIXER_SWITCH("IEC958 In/Out 48KHz", spdo_48k),
2452         DEFINE_MIXER_SWITCH("IEC958 Loop", spdif_loop),
2453         DEFINE_MIXER_SWITCH("IEC958 In Monitor", spdi_monitor),
2454 };
2455
2456 /* only for model 033/037 */
2457 static snd_kcontrol_new_t snd_cmipci_old_mixer_switches[] __devinitdata = {
2458         DEFINE_MIXER_SWITCH("IEC958 Mix Analog", spdif_dac_out),
2459         DEFINE_MIXER_SWITCH("IEC958 In Phase Inverse", spdi_phase),
2460         DEFINE_MIXER_SWITCH("IEC958 In Select", spdif_in_sel1),
2461 };
2462
2463 /* only for model 039 or later */
2464 static snd_kcontrol_new_t snd_cmipci_extra_mixer_switches[] __devinitdata = {
2465         DEFINE_MIXER_SWITCH("IEC958 In Select", spdif_in_sel2),
2466         DEFINE_MIXER_SWITCH("IEC958 In Phase Inverse", spdi_phase2),
2467         {
2468                 .name = "Mic-In Mode",
2469                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2470                 .info = snd_cmipci_mic_in_mode_info,
2471                 .get = snd_cmipci_mic_in_mode_get,
2472                 .put = snd_cmipci_mic_in_mode_put,
2473         }
2474 };
2475
2476 /* card control switches */
2477 static snd_kcontrol_new_t snd_cmipci_control_switches[] __devinitdata = {
2478         // DEFINE_CARD_SWITCH("Joystick", joystick), /* now module option */
2479         DEFINE_CARD_SWITCH("Modem", modem),
2480 };
2481
2482
2483 static int __devinit snd_cmipci_mixer_new(cmipci_t *cm, int pcm_spdif_device)
2484 {
2485         snd_card_t *card;
2486         snd_kcontrol_new_t *sw;
2487         snd_kcontrol_t *kctl;
2488         unsigned int idx;
2489         int err;
2490
2491         snd_assert(cm != NULL && cm->card != NULL, return -EINVAL);
2492
2493         card = cm->card;
2494
2495         strcpy(card->mixername, "CMedia PCI");
2496
2497         spin_lock_irq(&cm->reg_lock);
2498         snd_cmipci_mixer_write(cm, 0x00, 0x00);         /* mixer reset */
2499         spin_unlock_irq(&cm->reg_lock);
2500
2501         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_mixers); idx++) {
2502                 if (cm->chip_version == 68) {   // 8768 has no PCM volume
2503                         if (!strcmp(snd_cmipci_mixers[idx].name,
2504                                 "PCM Playback Volume"))
2505                                 continue;
2506                 }
2507                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cmipci_mixers[idx], cm))) < 0)
2508                         return err;
2509         }
2510
2511         /* mixer switches */
2512         sw = snd_cmipci_mixer_switches;
2513         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_mixer_switches); idx++, sw++) {
2514                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2515                 if (err < 0)
2516                         return err;
2517         }
2518         if (! cm->can_multi_ch) {
2519                 err = snd_ctl_add(cm->card, snd_ctl_new1(&snd_cmipci_nomulti_switch, cm));
2520                 if (err < 0)
2521                         return err;
2522         }
2523         if (cm->device == PCI_DEVICE_ID_CMEDIA_CM8738 ||
2524             cm->device == PCI_DEVICE_ID_CMEDIA_CM8738B) {
2525                 sw = snd_cmipci_8738_mixer_switches;
2526                 for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_8738_mixer_switches); idx++, sw++) {
2527                         err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2528                         if (err < 0)
2529                                 return err;
2530                 }
2531                 if (cm->can_ac3_hw) {
2532                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_default, cm))) < 0)
2533                                 return err;
2534                         kctl->id.device = pcm_spdif_device;
2535                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_mask, cm))) < 0)
2536                                 return err;
2537                         kctl->id.device = pcm_spdif_device;
2538                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_stream, cm))) < 0)
2539                                 return err;
2540                         kctl->id.device = pcm_spdif_device;
2541                 }
2542                 if (cm->chip_version <= 37) {
2543                         sw = snd_cmipci_old_mixer_switches;
2544                         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_old_mixer_switches); idx++, sw++) {
2545                                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2546                                 if (err < 0)
2547                                         return err;
2548                         }
2549                 }
2550         }
2551         if (cm->chip_version >= 39) {
2552                 sw = snd_cmipci_extra_mixer_switches;
2553                 for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_extra_mixer_switches); idx++, sw++) {
2554                         err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2555                         if (err < 0)
2556                                 return err;
2557                 }
2558         }
2559
2560         /* card switches */
2561         sw = snd_cmipci_control_switches;
2562         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_control_switches); idx++, sw++) {
2563                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2564                 if (err < 0)
2565                         return err;
2566         }
2567
2568         for (idx = 0; idx < CM_SAVED_MIXERS; idx++) {
2569                 snd_ctl_elem_id_t id;
2570                 snd_kcontrol_t *ctl;
2571                 memset(&id, 0, sizeof(id));
2572                 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2573                 strcpy(id.name, cm_saved_mixer[idx].name);
2574                 if ((ctl = snd_ctl_find_id(cm->card, &id)) != NULL)
2575                         cm->mixer_res_ctl[idx] = ctl;
2576         }
2577
2578         return 0;
2579 }
2580
2581
2582 /*
2583  * proc interface
2584  */
2585
2586 #ifdef CONFIG_PROC_FS
2587 static void snd_cmipci_proc_read(snd_info_entry_t *entry, 
2588                                  snd_info_buffer_t *buffer)
2589 {
2590         cmipci_t *cm = entry->private_data;
2591         int i;
2592         
2593         snd_iprintf(buffer, "%s\n\n", cm->card->longname);
2594         for (i = 0; i < 0x40; i++) {
2595                 int v = inb(cm->iobase + i);
2596                 if (i % 4 == 0)
2597                         snd_iprintf(buffer, "%02x: ", i);
2598                 snd_iprintf(buffer, "%02x", v);
2599                 if (i % 4 == 3)
2600                         snd_iprintf(buffer, "\n");
2601                 else
2602                         snd_iprintf(buffer, " ");
2603         }
2604 }
2605
2606 static void __devinit snd_cmipci_proc_init(cmipci_t *cm)
2607 {
2608         snd_info_entry_t *entry;
2609
2610         if (! snd_card_proc_new(cm->card, "cmipci", &entry))
2611                 snd_info_set_text_ops(entry, cm, 1024, snd_cmipci_proc_read);
2612 }
2613 #else /* !CONFIG_PROC_FS */
2614 static inline void snd_cmipci_proc_init(cmipci_t *cm) {}
2615 #endif
2616
2617
2618 static struct pci_device_id snd_cmipci_ids[] = {
2619         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2620         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2621         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2622         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2623         {PCI_VENDOR_ID_AL, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2624         {0,},
2625 };
2626
2627
2628 /*
2629  * check chip version and capabilities
2630  * driver name is modified according to the chip model
2631  */
2632 static void __devinit query_chip(cmipci_t *cm)
2633 {
2634         unsigned int detect;
2635
2636         /* check reg 0Ch, bit 24-31 */
2637         detect = snd_cmipci_read(cm, CM_REG_INT_HLDCLR) & CM_CHIP_MASK2;
2638         if (! detect) {
2639                 /* check reg 08h, bit 24-28 */
2640                 detect = snd_cmipci_read(cm, CM_REG_CHFORMAT) & CM_CHIP_MASK1;
2641                 if (! detect) {
2642                         cm->chip_version = 33;
2643                         cm->max_channels = 2;
2644                         if (cm->do_soft_ac3)
2645                                 cm->can_ac3_sw = 1;
2646                         else
2647                                 cm->can_ac3_hw = 1;
2648                         cm->has_dual_dac = 1;
2649                 } else {
2650                         cm->chip_version = 37;
2651                         cm->max_channels = 2;
2652                         cm->can_ac3_hw = 1;
2653                         cm->has_dual_dac = 1;
2654                 }
2655         } else {
2656                 /* check reg 0Ch, bit 26 */
2657                 if (detect & CM_CHIP_8768) {
2658                         cm->chip_version = 68;
2659                         cm->max_channels = 8;
2660                         cm->can_ac3_hw = 1;
2661                         cm->has_dual_dac = 1;
2662                         cm->can_multi_ch = 1;
2663                 } else if (detect & CM_CHIP_055) {
2664                         cm->chip_version = 55;
2665                         cm->max_channels = 6;
2666                         cm->can_ac3_hw = 1;
2667                         cm->has_dual_dac = 1;
2668                         cm->can_multi_ch = 1;
2669                 } else if (detect & CM_CHIP_039) {
2670                         cm->chip_version = 39;
2671                         if (detect & CM_CHIP_039_6CH) /* 4 or 6 channels */
2672                                 cm->max_channels = 6;
2673                         else
2674                                 cm->max_channels = 4;
2675                         cm->can_ac3_hw = 1;
2676                         cm->has_dual_dac = 1;
2677                         cm->can_multi_ch = 1;
2678                 } else {
2679                         printk(KERN_ERR "chip %x version not supported\n", detect);
2680                 }
2681         }
2682 }
2683
2684 #ifdef SUPPORT_JOYSTICK
2685 static int __devinit snd_cmipci_create_gameport(cmipci_t *cm, int dev)
2686 {
2687         static int ports[] = { 0x201, 0x200, 0 }; /* FIXME: majority is 0x201? */
2688         struct gameport *gp;
2689         struct resource *r = NULL;
2690         int i, io_port = 0;
2691
2692         if (joystick_port[dev] == 0)
2693                 return -ENODEV;
2694
2695         if (joystick_port[dev] == 1) { /* auto-detect */
2696                 for (i = 0; ports[i]; i++) {
2697                         io_port = ports[i];
2698                         r = request_region(io_port, 1, "CMIPCI gameport");
2699                         if (r)
2700                                 break;
2701                 }
2702         } else {
2703                 io_port = joystick_port[dev];
2704                 r = request_region(io_port, 1, "CMIPCI gameport");
2705         }
2706
2707         if (!r) {
2708                 printk(KERN_WARNING "cmipci: cannot reserve joystick ports\n");
2709                 return -EBUSY;
2710         }
2711
2712         cm->gameport = gp = gameport_allocate_port();
2713         if (!gp) {
2714                 printk(KERN_ERR "cmipci: cannot allocate memory for gameport\n");
2715                 release_resource(r);
2716                 kfree_nocheck(r);
2717                 return -ENOMEM;
2718         }
2719         gameport_set_name(gp, "C-Media Gameport");
2720         gameport_set_phys(gp, "pci%s/gameport0", pci_name(cm->pci));
2721         gameport_set_dev_parent(gp, &cm->pci->dev);
2722         gp->io = io_port;
2723         gameport_set_port_data(gp, r);
2724
2725         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
2726
2727         gameport_register_port(cm->gameport);
2728
2729         return 0;
2730 }
2731
2732 static void snd_cmipci_free_gameport(cmipci_t *cm)
2733 {
2734         if (cm->gameport) {
2735                 struct resource *r = gameport_get_port_data(cm->gameport);
2736
2737                 gameport_unregister_port(cm->gameport);
2738                 cm->gameport = NULL;
2739
2740                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
2741                 release_resource(r);
2742                 kfree_nocheck(r);
2743         }
2744 }
2745 #else
2746 static inline int snd_cmipci_create_gameport(cmipci_t *cm, int dev) { return -ENOSYS; }
2747 static inline void snd_cmipci_free_gameport(cmipci_t *cm) { }
2748 #endif
2749
2750 static int snd_cmipci_free(cmipci_t *cm)
2751 {
2752         if (cm->irq >= 0) {
2753                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2754                 snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT);
2755                 snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0);  /* disable ints */
2756                 snd_cmipci_ch_reset(cm, CM_CH_PLAY);
2757                 snd_cmipci_ch_reset(cm, CM_CH_CAPT);
2758                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, 0); /* disable channels */
2759                 snd_cmipci_write(cm, CM_REG_FUNCTRL1, 0);
2760
2761                 /* reset mixer */
2762                 snd_cmipci_mixer_write(cm, 0, 0);
2763
2764                 synchronize_irq(cm->irq);
2765
2766                 free_irq(cm->irq, (void *)cm);
2767         }
2768
2769         snd_cmipci_free_gameport(cm);
2770         pci_release_regions(cm->pci);
2771         pci_disable_device(cm->pci);
2772         kfree(cm);
2773         return 0;
2774 }
2775
2776 static int snd_cmipci_dev_free(snd_device_t *device)
2777 {
2778         cmipci_t *cm = device->device_data;
2779         return snd_cmipci_free(cm);
2780 }
2781
2782 static int __devinit snd_cmipci_create(snd_card_t *card, struct pci_dev *pci,
2783                                        int dev, cmipci_t **rcmipci)
2784 {
2785         cmipci_t *cm;
2786         int err;
2787         static snd_device_ops_t ops = {
2788                 .dev_free =     snd_cmipci_dev_free,
2789         };
2790         unsigned int val = 0;
2791         long iomidi = mpu_port[dev];
2792         long iosynth = fm_port[dev];
2793         int pcm_index, pcm_spdif_index;
2794         static struct pci_device_id intel_82437vx[] = {
2795                 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX) },
2796                 { },
2797         };
2798
2799         *rcmipci = NULL;
2800
2801         if ((err = pci_enable_device(pci)) < 0)
2802                 return err;
2803
2804         cm = kcalloc(1, sizeof(*cm), GFP_KERNEL);
2805         if (cm == NULL) {
2806                 pci_disable_device(pci);
2807                 return -ENOMEM;
2808         }
2809
2810         spin_lock_init(&cm->reg_lock);
2811         init_MUTEX(&cm->open_mutex);
2812         cm->device = pci->device;
2813         cm->card = card;
2814         cm->pci = pci;
2815         cm->irq = -1;
2816         cm->channel[0].ch = 0;
2817         cm->channel[1].ch = 1;
2818         cm->channel[0].is_dac = cm->channel[1].is_dac = 1; /* dual DAC mode */
2819
2820         if ((err = pci_request_regions(pci, card->driver)) < 0) {
2821                 kfree(cm);
2822                 pci_disable_device(pci);
2823                 return err;
2824         }
2825         cm->iobase = pci_resource_start(pci, 0);
2826
2827         if (request_irq(pci->irq, snd_cmipci_interrupt, SA_INTERRUPT|SA_SHIRQ, card->driver, (void *)cm)) {
2828                 snd_printk("unable to grab IRQ %d\n", pci->irq);
2829                 snd_cmipci_free(cm);
2830                 return -EBUSY;
2831         }
2832         cm->irq = pci->irq;
2833
2834         pci_set_master(cm->pci);
2835
2836         /*
2837          * check chip version, max channels and capabilities
2838          */
2839
2840         cm->chip_version = 0;
2841         cm->max_channels = 2;
2842         cm->do_soft_ac3 = soft_ac3[dev];
2843
2844         if (pci->device != PCI_DEVICE_ID_CMEDIA_CM8338A &&
2845             pci->device != PCI_DEVICE_ID_CMEDIA_CM8338B)
2846                 query_chip(cm);
2847         /* added -MCx suffix for chip supporting multi-channels */
2848         if (cm->can_multi_ch)
2849                 sprintf(cm->card->driver + strlen(cm->card->driver),
2850                         "-MC%d", cm->max_channels);
2851         else if (cm->can_ac3_sw)
2852                 strcpy(cm->card->driver + strlen(cm->card->driver), "-SWIEC");
2853
2854         cm->dig_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
2855         cm->dig_pcm_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
2856
2857 #if CM_CH_PLAY == 1
2858         cm->ctrl = CM_CHADC0;   /* default FUNCNTRL0 */
2859 #else
2860         cm->ctrl = CM_CHADC1;   /* default FUNCNTRL0 */
2861 #endif
2862
2863         /* initialize codec registers */
2864         snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0);     /* disable ints */
2865         snd_cmipci_ch_reset(cm, CM_CH_PLAY);
2866         snd_cmipci_ch_reset(cm, CM_CH_CAPT);
2867         snd_cmipci_write(cm, CM_REG_FUNCTRL0, 0);       /* disable channels */
2868         snd_cmipci_write(cm, CM_REG_FUNCTRL1, 0);
2869
2870         snd_cmipci_write(cm, CM_REG_CHFORMAT, 0);
2871         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC|CM_N4SPK3D);
2872 #if CM_CH_PLAY == 1
2873         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
2874 #else
2875         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
2876 #endif
2877         /* Set Bus Master Request */
2878         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_BREQ);
2879
2880         /* Assume TX and compatible chip set (Autodetection required for VX chip sets) */
2881         switch (pci->device) {
2882         case PCI_DEVICE_ID_CMEDIA_CM8738:
2883         case PCI_DEVICE_ID_CMEDIA_CM8738B:
2884                 if (!pci_dev_present(intel_82437vx)) 
2885                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_TXVX);
2886                 break;
2887         default:
2888                 break;
2889         }
2890
2891         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, cm, &ops)) < 0) {
2892                 snd_cmipci_free(cm);
2893                 return err;
2894         }
2895
2896         /* set MPU address */
2897         switch (iomidi) {
2898         case 0x320: val = CM_VMPU_320; break;
2899         case 0x310: val = CM_VMPU_310; break;
2900         case 0x300: val = CM_VMPU_300; break;
2901         case 0x330: val = CM_VMPU_330; break;
2902         default:
2903                 iomidi = 0; break;
2904         }
2905         if (iomidi > 0) {
2906                 snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
2907                 /* enable UART */
2908                 snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_UART_EN);
2909         }
2910
2911         /* set FM address */
2912         val = snd_cmipci_read(cm, CM_REG_LEGACY_CTRL) & ~CM_FMSEL_MASK;
2913         switch (iosynth) {
2914         case 0x3E8: val |= CM_FMSEL_3E8; break;
2915         case 0x3E0: val |= CM_FMSEL_3E0; break;
2916         case 0x3C8: val |= CM_FMSEL_3C8; break;
2917         case 0x388: val |= CM_FMSEL_388; break;
2918         default:
2919                 iosynth = 0; break;
2920         }
2921         if (iosynth > 0) {
2922                 snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
2923                 /* enable FM */
2924                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2925
2926                 if (snd_opl3_create(card, iosynth, iosynth + 2,
2927                                     OPL3_HW_OPL3, 0, &cm->opl3) < 0) {
2928                         printk(KERN_ERR "cmipci: no OPL device at 0x%lx, skipping...\n", iosynth);
2929                         iosynth = 0;
2930                 } else {
2931                         if ((err = snd_opl3_hwdep_new(cm->opl3, 0, 1, &cm->opl3hwdep)) < 0) {
2932                                 printk(KERN_ERR "cmipci: cannot create OPL3 hwdep\n");
2933                                 return err;
2934                         }
2935                 }
2936         }
2937         if (! iosynth) {
2938                 /* disable FM */
2939                 snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val & ~CM_FMSEL_MASK);
2940                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2941         }
2942
2943         /* reset mixer */
2944         snd_cmipci_mixer_write(cm, 0, 0);
2945
2946         snd_cmipci_proc_init(cm);
2947
2948         /* create pcm devices */
2949         pcm_index = pcm_spdif_index = 0;
2950         if ((err = snd_cmipci_pcm_new(cm, pcm_index)) < 0)
2951                 return err;
2952         pcm_index++;
2953         if (cm->has_dual_dac) {
2954                 if ((err = snd_cmipci_pcm2_new(cm, pcm_index)) < 0)
2955                         return err;
2956                 pcm_index++;
2957         }
2958         if (cm->can_ac3_hw || cm->can_ac3_sw) {
2959                 pcm_spdif_index = pcm_index;
2960                 if ((err = snd_cmipci_pcm_spdif_new(cm, pcm_index)) < 0)
2961                         return err;
2962         }
2963
2964         /* create mixer interface & switches */
2965         if ((err = snd_cmipci_mixer_new(cm, pcm_spdif_index)) < 0)
2966                 return err;
2967
2968         if (iomidi > 0) {
2969                 if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI,
2970                                                iomidi, 0,
2971                                                cm->irq, 0, &cm->rmidi)) < 0) {
2972                         printk(KERN_ERR "cmipci: no UART401 device at 0x%lx\n", iomidi);
2973                 }
2974         }
2975
2976 #ifdef USE_VAR48KRATE
2977         for (val = 0; val < ARRAY_SIZE(rates); val++)
2978                 snd_cmipci_set_pll(cm, rates[val], val);
2979
2980         /*
2981          * (Re-)Enable external switch spdo_48k
2982          */
2983         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K|CM_SPDF_AC97);
2984 #endif /* USE_VAR48KRATE */
2985
2986         if (snd_cmipci_create_gameport(cm, dev) < 0)
2987                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
2988
2989         snd_card_set_dev(card, &pci->dev);
2990
2991         *rcmipci = cm;
2992         return 0;
2993 }
2994
2995 /*
2996  */
2997
2998 MODULE_DEVICE_TABLE(pci, snd_cmipci_ids);
2999
3000 static int __devinit snd_cmipci_probe(struct pci_dev *pci,
3001                                       const struct pci_device_id *pci_id)
3002 {
3003         static int dev;
3004         snd_card_t *card;
3005         cmipci_t *cm;
3006         int err;
3007
3008         if (dev >= SNDRV_CARDS)
3009                 return -ENODEV;
3010         if (! enable[dev]) {
3011                 dev++;
3012                 return -ENOENT;
3013         }
3014
3015         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
3016         if (card == NULL)
3017                 return -ENOMEM;
3018         
3019         switch (pci->device) {
3020         case PCI_DEVICE_ID_CMEDIA_CM8738:
3021         case PCI_DEVICE_ID_CMEDIA_CM8738B:
3022                 strcpy(card->driver, "CMI8738");
3023                 break;
3024         case PCI_DEVICE_ID_CMEDIA_CM8338A:
3025         case PCI_DEVICE_ID_CMEDIA_CM8338B:
3026                 strcpy(card->driver, "CMI8338");
3027                 break;
3028         default:
3029                 strcpy(card->driver, "CMIPCI");
3030                 break;
3031         }
3032
3033         if ((err = snd_cmipci_create(card, pci, dev, &cm)) < 0) {
3034                 snd_card_free(card);
3035                 return err;
3036         }
3037
3038         sprintf(card->shortname, "C-Media PCI %s", card->driver);
3039         sprintf(card->longname, "%s (model %d) at 0x%lx, irq %i",
3040                 card->shortname,
3041                 cm->chip_version,
3042                 cm->iobase,
3043                 cm->irq);
3044
3045         //snd_printd("%s is detected\n", card->longname);
3046
3047         if ((err = snd_card_register(card)) < 0) {
3048                 snd_card_free(card);
3049                 return err;
3050         }
3051         pci_set_drvdata(pci, card);
3052         dev++;
3053         return 0;
3054
3055 }
3056
3057 static void __devexit snd_cmipci_remove(struct pci_dev *pci)
3058 {
3059         snd_card_free(pci_get_drvdata(pci));
3060         pci_set_drvdata(pci, NULL);
3061 }
3062
3063
3064 static struct pci_driver driver = {
3065         .name = "C-Media PCI",
3066         .id_table = snd_cmipci_ids,
3067         .probe = snd_cmipci_probe,
3068         .remove = __devexit_p(snd_cmipci_remove),
3069 };
3070         
3071 static int __init alsa_card_cmipci_init(void)
3072 {
3073         return pci_register_driver(&driver);
3074 }
3075
3076 static void __exit alsa_card_cmipci_exit(void)
3077 {
3078         pci_unregister_driver(&driver);
3079 }
3080
3081 module_init(alsa_card_cmipci_init)
3082 module_exit(alsa_card_cmipci_exit)