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   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 <linux/mutex.h>
  33 #include <sound/core.h>
  34 #include <sound/info.h>
  35 #include <sound/control.h>
  36 #include <sound/pcm.h>
  37 #include <sound/rawmidi.h>
  38 #include <sound/mpu401.h>
  39 #include <sound/opl3.h>
  40 #include <sound/sb.h>
  41 #include <sound/asoundef.h>
  42 #include <sound/initval.h>
  43
  44 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  45 MODULE_DESCRIPTION("C-Media CMI8x38 PCI");
  46 MODULE_LICENSE("GPL");
  47 MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8738},"
  48                 "{C-Media,CMI8738B},"
  49                 "{C-Media,CMI8338A},"
  50                 "{C-Media,CMI8338B}}");
  51
  52 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
  53 #define SUPPORT_JOYSTICK 1
  54 #endif
  55
  56 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  57 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  58 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable switches */
  59 static long mpu_port[SNDRV_CARDS];
  60 static long fm_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)]=1};
  61 static int soft_ac3[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)]=1};
  62 #ifdef SUPPORT_JOYSTICK
  63 static int joystick_port[SNDRV_CARDS];
  64 #endif
  65
  66 module_param_array(index, int, NULL, 0444);
  67 MODULE_PARM_DESC(index, "Index value for C-Media PCI soundcard.");
  68 module_param_array(id, charp, NULL, 0444);
  69 MODULE_PARM_DESC(id, "ID string for C-Media PCI soundcard.");
  70 module_param_array(enable, bool, NULL, 0444);
  71 MODULE_PARM_DESC(enable, "Enable C-Media PCI soundcard.");
  72 module_param_array(mpu_port, long, NULL, 0444);
  73 MODULE_PARM_DESC(mpu_port, "MPU-401 port.");
  74 module_param_array(fm_port, long, NULL, 0444);
  75 MODULE_PARM_DESC(fm_port, "FM port.");
  76 module_param_array(soft_ac3, bool, NULL, 0444);
  77 MODULE_PARM_DESC(soft_ac3, "Sofware-conversion of raw SPDIF packets (model 033 only).");
  78 #ifdef SUPPORT_JOYSTICK
  79 module_param_array(joystick_port, int, NULL, 0444);
  80 MODULE_PARM_DESC(joystick_port, "Joystick port address.");
  81 #endif
  82
  83 /*
  84  * CM8x38 registers definition
  85  */
  86
  87 #define CM_REG_FUNCTRL0         0x00
  88 #define CM_RST_CH1              0x00080000
  89 #define CM_RST_CH0              0x00040000
  90 #define CM_CHEN1                0x00020000      /* ch1: enable */
  91 #define CM_CHEN0                0x00010000      /* ch0: enable */
  92 #define CM_PAUSE1               0x00000008      /* ch1: pause */
  93 #define CM_PAUSE0               0x00000004      /* ch0: pause */
  94 #define CM_CHADC1               0x00000002      /* ch1, 0:playback, 1:record */
  95 #define CM_CHADC0               0x00000001      /* ch0, 0:playback, 1:record */
  96
  97 #define CM_REG_FUNCTRL1         0x04
  98 #define CM_ASFC_MASK            0x0000E000      /* ADC sampling frequency */
  99 #define CM_ASFC_SHIFT           13
 100 #define CM_DSFC_MASK            0x00001C00      /* DAC sampling frequency */
 101 #define CM_DSFC_SHIFT           10
 102 #define CM_SPDF_1               0x00000200      /* SPDIF IN/OUT at channel B */
 103 #define CM_SPDF_0               0x00000100      /* SPDIF OUT only channel A */
 104 #define CM_SPDFLOOP             0x00000080      /* ext. SPDIIF/OUT -> IN loopback */
 105 #define CM_SPDO2DAC             0x00000040      /* SPDIF/OUT can be heard from internal DAC */
 106 #define CM_INTRM                0x00000020      /* master control block (MCB) interrupt enabled */
 107 #define CM_BREQ                 0x00000010      /* bus master enabled */
 108 #define CM_VOICE_EN             0x00000008      /* legacy voice (SB16,FM) */
 109 #define CM_UART_EN              0x00000004      /* UART */
 110 #define CM_JYSTK_EN             0x00000002      /* joy stick */
 111
 112 #define CM_REG_CHFORMAT         0x08
 113
 114 #define CM_CHB3D5C              0x80000000      /* 5,6 channels */
 115 #define CM_CHB3D                0x20000000      /* 4 channels */
 116
 117 #define CM_CHIP_MASK1           0x1f000000
 118 #define CM_CHIP_037             0x01000000
 119
 120 #define CM_SPDIF_SELECT1        0x00080000      /* for model <= 037 ? */
 121 #define CM_AC3EN1               0x00100000      /* enable AC3: model 037 */
 122 #define CM_SPD24SEL             0x00020000      /* 24bit spdif: model 037 */
 123 /* #define CM_SPDIF_INVERSE     0x00010000 */ /* ??? */
 124
 125 #define CM_ADCBITLEN_MASK       0x0000C000
 126 #define CM_ADCBITLEN_16         0x00000000
 127 #define CM_ADCBITLEN_15         0x00004000
 128 #define CM_ADCBITLEN_14         0x00008000
 129 #define CM_ADCBITLEN_13         0x0000C000
 130
 131 #define CM_ADCDACLEN_MASK       0x00003000
 132 #define CM_ADCDACLEN_060        0x00000000
 133 #define CM_ADCDACLEN_066        0x00001000
 134 #define CM_ADCDACLEN_130        0x00002000
 135 #define CM_ADCDACLEN_280        0x00003000
 136
 137 #define CM_CH1_SRATE_176K       0x00000800
 138 #define CM_CH1_SRATE_88K        0x00000400
 139 #define CM_CH0_SRATE_176K       0x00000200
 140 #define CM_CH0_SRATE_88K        0x00000100
 141
 142 #define CM_SPDIF_INVERSE2       0x00000080      /* model 055? */
 143
 144 #define CM_CH1FMT_MASK          0x0000000C
 145 #define CM_CH1FMT_SHIFT         2
 146 #define CM_CH0FMT_MASK          0x00000003
 147 #define CM_CH0FMT_SHIFT         0
 148
 149 #define CM_REG_INT_HLDCLR       0x0C
 150 #define CM_CHIP_MASK2           0xff000000
 151 #define CM_CHIP_039             0x04000000
 152 #define CM_CHIP_039_6CH         0x01000000
 153 #define CM_CHIP_055             0x08000000
 154 #define CM_CHIP_8768            0x20000000
 155 #define CM_TDMA_INT_EN          0x00040000
 156 #define CM_CH1_INT_EN           0x00020000
 157 #define CM_CH0_INT_EN           0x00010000
 158 #define CM_INT_HOLD             0x00000002
 159 #define CM_INT_CLEAR            0x00000001
 160
 161 #define CM_REG_INT_STATUS       0x10
 162 #define CM_INTR                 0x80000000
 163 #define CM_VCO                  0x08000000      /* Voice Control? CMI8738 */
 164 #define CM_MCBINT               0x04000000      /* Master Control Block abort cond.? */
 165 #define CM_UARTINT              0x00010000
 166 #define CM_LTDMAINT             0x00008000
 167 #define CM_HTDMAINT             0x00004000
 168 #define CM_XDO46                0x00000080      /* Modell 033? Direct programming EEPROM (read data register) */
 169 #define CM_LHBTOG               0x00000040      /* High/Low status from DMA ctrl register */
 170 #define CM_LEG_HDMA             0x00000020      /* Legacy is in High DMA channel */
 171 #define CM_LEG_STEREO           0x00000010      /* Legacy is in Stereo mode */
 172 #define CM_CH1BUSY              0x00000008
 173 #define CM_CH0BUSY              0x00000004
 174 #define CM_CHINT1               0x00000002
 175 #define CM_CHINT0               0x00000001
 176
 177 #define CM_REG_LEGACY_CTRL      0x14
 178 #define CM_NXCHG                0x80000000      /* h/w multi channels? */
 179 #define CM_VMPU_MASK            0x60000000      /* MPU401 i/o port address */
 180 #define CM_VMPU_330             0x00000000
 181 #define CM_VMPU_320             0x20000000
 182 #define CM_VMPU_310             0x40000000
 183 #define CM_VMPU_300             0x60000000
 184 #define CM_VSBSEL_MASK          0x0C000000      /* SB16 base address */
 185 #define CM_VSBSEL_220           0x00000000
 186 #define CM_VSBSEL_240           0x04000000
 187 #define CM_VSBSEL_260           0x08000000
 188 #define CM_VSBSEL_280           0x0C000000
 189 #define CM_FMSEL_MASK           0x03000000      /* FM OPL3 base address */
 190 #define CM_FMSEL_388            0x00000000
 191 #define CM_FMSEL_3C8            0x01000000
 192 #define CM_FMSEL_3E0            0x02000000
 193 #define CM_FMSEL_3E8            0x03000000
 194 #define CM_ENSPDOUT             0x00800000      /* enable XPDIF/OUT to I/O interface */
 195 #define CM_SPDCOPYRHT           0x00400000      /* set copyright spdif in/out */
 196 #define CM_DAC2SPDO             0x00200000      /* enable wave+fm_midi -> SPDIF/OUT */
 197 #define CM_SETRETRY             0x00010000      /* 0: legacy i/o wait (default), 1: legacy i/o bus retry */
 198 #define CM_CHB3D6C              0x00008000      /* 5.1 channels support */
 199 #define CM_LINE_AS_BASS         0x00006000      /* use line-in as bass */
 200
 201 #define CM_REG_MISC_CTRL        0x18
 202 #define CM_PWD                  0x80000000
 203 #define CM_RESET                0x40000000
 204 #define CM_SFIL_MASK            0x30000000
 205 #define CM_TXVX                 0x08000000
 206 #define CM_N4SPK3D              0x04000000      /* 4ch output */
 207 #define CM_SPDO5V               0x02000000      /* 5V spdif output (1 = 0.5v (coax)) */
 208 #define CM_SPDIF48K             0x01000000      /* write */
 209 #define CM_SPATUS48K            0x01000000      /* read */
 210 #define CM_ENDBDAC              0x00800000      /* enable dual dac */
 211 #define CM_XCHGDAC              0x00400000      /* 0: front=ch0, 1: front=ch1 */
 212 #define CM_SPD32SEL             0x00200000      /* 0: 16bit SPDIF, 1: 32bit */
 213 #define CM_SPDFLOOPI            0x00100000      /* int. SPDIF-IN -> int. OUT */
 214 #define CM_FM_EN                0x00080000      /* enalbe FM */
 215 #define CM_AC3EN2               0x00040000      /* enable AC3: model 039 */
 216 #define CM_VIDWPDSB             0x00010000
 217 #define CM_SPDF_AC97            0x00008000      /* 0: SPDIF/OUT 44.1K, 1: 48K */
 218 #define CM_MASK_EN              0x00004000
 219 #define CM_VIDWPPRT             0x00002000
 220 #define CM_SFILENB              0x00001000
 221 #define CM_MMODE_MASK           0x00000E00
 222 #define CM_SPDIF_SELECT2        0x00000100      /* for model > 039 ? */
 223 #define CM_ENCENTER             0x00000080
 224 #define CM_FLINKON              0x00000040
 225 #define CM_FLINKOFF             0x00000020
 226 #define CM_MIDSMP               0x00000010
 227 #define CM_UPDDMA_MASK          0x0000000C
 228 #define CM_TWAIT_MASK           0x00000003
 229
 230         /* byte */
 231 #define CM_REG_MIXER0           0x20
 232
 233 #define CM_REG_SB16_DATA        0x22
 234 #define CM_REG_SB16_ADDR        0x23
 235
 236 #define CM_REFFREQ_XIN          (315*1000*1000)/22      /* 14.31818 Mhz reference clock frequency pin XIN */
 237 #define CM_ADCMULT_XIN          512                     /* Guessed (487 best for 44.1kHz, not for 88/176kHz) */
 238 #define CM_TOLERANCE_RATE       0.001                   /* Tolerance sample rate pitch (1000ppm) */
 239 #define CM_MAXIMUM_RATE         80000000                /* Note more than 80MHz */
 240
 241 #define CM_REG_MIXER1           0x24
 242 #define CM_FMMUTE               0x80    /* mute FM */
 243 #define CM_FMMUTE_SHIFT         7
 244 #define CM_WSMUTE               0x40    /* mute PCM */
 245 #define CM_WSMUTE_SHIFT         6
 246 #define CM_SPK4                 0x20    /* lin-in -> rear line out */
 247 #define CM_SPK4_SHIFT           5
 248 #define CM_REAR2FRONT           0x10    /* exchange rear/front */
 249 #define CM_REAR2FRONT_SHIFT     4
 250 #define CM_WAVEINL              0x08    /* digital wave rec. left chan */
 251 #define CM_WAVEINL_SHIFT        3
 252 #define CM_WAVEINR              0x04    /* digical wave rec. right */
 253 #define CM_WAVEINR_SHIFT        2
 254 #define CM_X3DEN                0x02    /* 3D surround enable */
 255 #define CM_X3DEN_SHIFT          1
 256 #define CM_CDPLAY               0x01    /* enable SPDIF/IN PCM -> DAC */
 257 #define CM_CDPLAY_SHIFT         0
 258
 259 #define CM_REG_MIXER2           0x25
 260 #define CM_RAUXREN              0x80    /* AUX right capture */
 261 #define CM_RAUXREN_SHIFT        7
 262 #define CM_RAUXLEN              0x40    /* AUX left capture */
 263 #define CM_RAUXLEN_SHIFT        6
 264 #define CM_VAUXRM               0x20    /* AUX right mute */
 265 #define CM_VAUXRM_SHIFT         5
 266 #define CM_VAUXLM               0x10    /* AUX left mute */
 267 #define CM_VAUXLM_SHIFT         4
 268 #define CM_VADMIC_MASK          0x0e    /* mic gain level (0-3) << 1 */
 269 #define CM_VADMIC_SHIFT         1
 270 #define CM_MICGAINZ             0x01    /* mic boost */
 271 #define CM_MICGAINZ_SHIFT       0
 272
 273 #define CM_REG_MIXER3           0x24
 274 #define CM_REG_AUX_VOL          0x26
 275 #define CM_VAUXL_MASK           0xf0
 276 #define CM_VAUXR_MASK           0x0f
 277
 278 #define CM_REG_MISC             0x27
 279 #define CM_XGPO1                0x20
 280 // #define CM_XGPBIO            0x04
 281 #define CM_MIC_CENTER_LFE       0x04    /* mic as center/lfe out? (model 039 or later?) */
 282 #define CM_SPDIF_INVERSE        0x04    /* spdif input phase inverse (model 037) */
 283 #define CM_SPDVALID             0x02    /* spdif input valid check */
 284 #define CM_DMAUTO               0x01
 285
 286 #define CM_REG_AC97             0x28    /* hmmm.. do we have ac97 link? */
 287 /*
 288  * For CMI-8338 (0x28 - 0x2b) .. is this valid for CMI-8738
 289  * or identical with AC97 codec?
 290  */
 291 #define CM_REG_EXTERN_CODEC     CM_REG_AC97
 292
 293 /*
 294  * MPU401 pci port index address 0x40 - 0x4f (CMI-8738 spec ver. 0.6)
 295  */
 296 #define CM_REG_MPU_PCI          0x40
 297
 298 /*
 299  * FM pci port index address 0x50 - 0x5f (CMI-8738 spec ver. 0.6)
 300  */
 301 #define CM_REG_FM_PCI           0x50
 302
 303 /*
 304  * access from SB-mixer port
 305  */
 306 #define CM_REG_EXTENT_IND       0xf0
 307 #define CM_VPHONE_MASK          0xe0    /* Phone volume control (0-3) << 5 */
 308 #define CM_VPHONE_SHIFT         5
 309 #define CM_VPHOM                0x10    /* Phone mute control */
 310 #define CM_VSPKM                0x08    /* Speaker mute control, default high */
 311 #define CM_RLOOPREN             0x04    /* Rec. R-channel enable */
 312 #define CM_RLOOPLEN             0x02    /* Rec. L-channel enable */
 313 #define CM_VADMIC3              0x01    /* Mic record boost */
 314
 315 /*
 316  * CMI-8338 spec ver 0.5 (this is not valid for CMI-8738):
 317  * the 8 registers 0xf8 - 0xff are used for programming m/n counter by the PLL
 318  * unit (readonly?).
 319  */
 320 #define CM_REG_PLL              0xf8
 321
 322 /*
 323  * extended registers
 324  */
 325 #define CM_REG_CH0_FRAME1       0x80    /* base address */
 326 #define CM_REG_CH0_FRAME2       0x84
 327 #define CM_REG_CH1_FRAME1       0x88    /* 0-15: count of samples at bus master; buffer size */
 328 #define CM_REG_CH1_FRAME2       0x8C    /* 16-31: count of samples at codec; fragment size */
 329 #define CM_REG_EXT_MISC         0x90
 330 #define CM_REG_MISC_CTRL_8768   0x92    /* reg. name the same as 0x18 */
 331 #define CM_CHB3D8C              0x20    /* 7.1 channels support */
 332 #define CM_SPD32FMT             0x10    /* SPDIF/IN 32k */
 333 #define CM_ADC2SPDIF            0x08    /* ADC output to SPDIF/OUT */
 334 #define CM_SHAREADC             0x04    /* DAC in ADC as Center/LFE */
 335 #define CM_REALTCMP             0x02    /* monitor the CMPL/CMPR of ADC */
 336 #define CM_INVLRCK              0x01    /* invert ZVPORT's LRCK */
 337
 338 /*
 339  * size of i/o region
 340  */
 341 #define CM_EXTENT_CODEC   0x100
 342 #define CM_EXTENT_MIDI    0x2
 343 #define CM_EXTENT_SYNTH   0x4
 344
 345
 346 /*
 347  * channels for playback / capture
 348  */
 349 #define CM_CH_PLAY      0
 350 #define CM_CH_CAPT      1
 351
 352 /*
 353  * flags to check device open/close
 354  */
 355 #define CM_OPEN_NONE    0
 356 #define CM_OPEN_CH_MASK 0x01
 357 #define CM_OPEN_DAC     0x10
 358 #define CM_OPEN_ADC     0x20
 359 #define CM_OPEN_SPDIF   0x40
 360 #define CM_OPEN_MCHAN   0x80
 361 #define CM_OPEN_PLAYBACK        (CM_CH_PLAY | CM_OPEN_DAC)
 362 #define CM_OPEN_PLAYBACK2       (CM_CH_CAPT | CM_OPEN_DAC)
 363 #define CM_OPEN_PLAYBACK_MULTI  (CM_CH_PLAY | CM_OPEN_DAC | CM_OPEN_MCHAN)
 364 #define CM_OPEN_CAPTURE         (CM_CH_CAPT | CM_OPEN_ADC)
 365 #define CM_OPEN_SPDIF_PLAYBACK  (CM_CH_PLAY | CM_OPEN_DAC | CM_OPEN_SPDIF)
 366 #define CM_OPEN_SPDIF_CAPTURE   (CM_CH_CAPT | CM_OPEN_ADC | CM_OPEN_SPDIF)
 367
 368
 369 #if CM_CH_PLAY == 1
 370 #define CM_PLAYBACK_SRATE_176K  CM_CH1_SRATE_176K
 371 #define CM_PLAYBACK_SPDF        CM_SPDF_1
 372 #define CM_CAPTURE_SPDF         CM_SPDF_0
 373 #else
 374 #define CM_PLAYBACK_SRATE_176K CM_CH0_SRATE_176K
 375 #define CM_PLAYBACK_SPDF        CM_SPDF_0
 376 #define CM_CAPTURE_SPDF         CM_SPDF_1
 377 #endif
 378
 379
 380 /*
 381  * driver data
 382  */
 383
 384 struct cmipci_pcm {
 385         struct snd_pcm_substream *substream;
 386         int running;            /* dac/adc running? */
 387         unsigned int dma_size;  /* in frames */
 388         unsigned int period_size;       /* in frames */
 389         unsigned int offset;    /* physical address of the buffer */
 390         unsigned int fmt;       /* format bits */
 391         int ch;                 /* channel (0/1) */
 392         unsigned int is_dac;            /* is dac? */
 393         int bytes_per_frame;
 394         int shift;
 395 };
 396
 397 /* mixer elements toggled/resumed during ac3 playback */
 398 struct cmipci_mixer_auto_switches {
 399         const char *name;       /* switch to toggle */
 400         int toggle_on;          /* value to change when ac3 mode */
 401 };
 402 static const struct cmipci_mixer_auto_switches cm_saved_mixer[] = {
 403         {"PCM Playback Switch", 0},
 404         {"IEC958 Output Switch", 1},
 405         {"IEC958 Mix Analog", 0},
 406         // {"IEC958 Out To DAC", 1}, // no longer used
 407         {"IEC958 Loop", 0},
 408 };
 409 #define CM_SAVED_MIXERS         ARRAY_SIZE(cm_saved_mixer)
 410
 411 struct cmipci {
 412         struct snd_card *card;
 413
 414         struct pci_dev *pci;
 415         unsigned int device;    /* device ID */
 416         int irq;
 417
 418         unsigned long iobase;
 419         unsigned int ctrl;      /* FUNCTRL0 current value */
 420
 421         struct snd_pcm *pcm;            /* DAC/ADC PCM */
 422         struct snd_pcm *pcm2;   /* 2nd DAC */
 423         struct snd_pcm *pcm_spdif;      /* SPDIF */
 424
 425         int chip_version;
 426         int max_channels;
 427         unsigned int can_ac3_sw: 1;
 428         unsigned int can_ac3_hw: 1;
 429         unsigned int can_multi_ch: 1;
 430         unsigned int do_soft_ac3: 1;
 431
 432         unsigned int spdif_playback_avail: 1;   /* spdif ready? */
 433         unsigned int spdif_playback_enabled: 1; /* spdif switch enabled? */
 434         int spdif_counter;      /* for software AC3 */
 435
 436         unsigned int dig_status;
 437         unsigned int dig_pcm_status;
 438
 439         struct snd_pcm_hardware *hw_info[3]; /* for playbacks */
 440
 441         int opened[2];  /* open mode */
 442         struct mutex open_mutex;
 443
 444         unsigned int mixer_insensitive: 1;
 445         struct snd_kcontrol *mixer_res_ctl[CM_SAVED_MIXERS];
 446         int mixer_res_status[CM_SAVED_MIXERS];
 447
 448         struct cmipci_pcm channel[2];   /* ch0 - DAC, ch1 - ADC or 2nd DAC */
 449
 450         /* external MIDI */
 451         struct snd_rawmidi *rmidi;
 452
 453 #ifdef SUPPORT_JOYSTICK
 454         struct gameport *gameport;
 455 #endif
 456
 457         spinlock_t reg_lock;
 458
 459 #ifdef CONFIG_PM
 460         unsigned int saved_regs[0x20];
 461         unsigned char saved_mixers[0x20];
 462 #endif
 463 };
 464
 465
 466 /* read/write operations for dword register */
 467 static inline void snd_cmipci_write(struct cmipci *cm, unsigned int cmd, unsigned int data)
 468 {
 469         outl(data, cm->iobase + cmd);
 470 }
 471
 472 static inline unsigned int snd_cmipci_read(struct cmipci *cm, unsigned int cmd)
 473 {
 474         return inl(cm->iobase + cmd);
 475 }
 476
 477 /* read/write operations for word register */
 478 static inline void snd_cmipci_write_w(struct cmipci *cm, unsigned int cmd, unsigned short data)
 479 {
 480         outw(data, cm->iobase + cmd);
 481 }
 482
 483 static inline unsigned short snd_cmipci_read_w(struct cmipci *cm, unsigned int cmd)
 484 {
 485         return inw(cm->iobase + cmd);
 486 }
 487
 488 /* read/write operations for byte register */
 489 static inline void snd_cmipci_write_b(struct cmipci *cm, unsigned int cmd, unsigned char data)
 490 {
 491         outb(data, cm->iobase + cmd);
 492 }
 493
 494 static inline unsigned char snd_cmipci_read_b(struct cmipci *cm, unsigned int cmd)
 495 {
 496         return inb(cm->iobase + cmd);
 497 }
 498
 499 /* bit operations for dword register */
 500 static int snd_cmipci_set_bit(struct cmipci *cm, unsigned int cmd, unsigned int flag)
 501 {
 502         unsigned int val, oval;
 503         val = oval = inl(cm->iobase + cmd);
 504         val |= flag;
 505         if (val == oval)
 506                 return 0;
 507         outl(val, cm->iobase + cmd);
 508         return 1;
 509 }
 510
 511 static int snd_cmipci_clear_bit(struct cmipci *cm, unsigned int cmd, unsigned int flag)
 512 {
 513         unsigned int val, oval;
 514         val = oval = inl(cm->iobase + cmd);
 515         val &= ~flag;
 516         if (val == oval)
 517                 return 0;
 518         outl(val, cm->iobase + cmd);
 519         return 1;
 520 }
 521
 522 /* bit operations for byte register */
 523 static int snd_cmipci_set_bit_b(struct cmipci *cm, unsigned int cmd, unsigned char flag)
 524 {
 525         unsigned char val, oval;
 526         val = oval = inb(cm->iobase + cmd);
 527         val |= flag;
 528         if (val == oval)
 529                 return 0;
 530         outb(val, cm->iobase + cmd);
 531         return 1;
 532 }
 533
 534 static int snd_cmipci_clear_bit_b(struct cmipci *cm, unsigned int cmd, unsigned char flag)
 535 {
 536         unsigned char val, oval;
 537         val = oval = inb(cm->iobase + cmd);
 538         val &= ~flag;
 539         if (val == oval)
 540                 return 0;
 541         outb(val, cm->iobase + cmd);
 542         return 1;
 543 }
 544
 545
 546 /*
 547  * PCM interface
 548  */
 549
 550 /*
 551  * calculate frequency
 552  */
 553
 554 static unsigned int rates[] = { 5512, 11025, 22050, 44100, 8000, 16000, 32000, 48000 };
 555
 556 static unsigned int snd_cmipci_rate_freq(unsigned int rate)
 557 {
 558         unsigned int i;
 559         for (i = 0; i < ARRAY_SIZE(rates); i++) {
 560                 if (rates[i] == rate)
 561                         return i;
 562         }
 563         snd_BUG();
 564         return 0;
 565 }
 566
 567 #ifdef USE_VAR48KRATE
 568 /*
 569  * Determine PLL values for frequency setup, maybe the CMI8338 (CMI8738???)
 570  * does it this way .. maybe not.  Never get any information from C-Media about
 571  * that <werner@suse.de>.
 572  */
 573 static int snd_cmipci_pll_rmn(unsigned int rate, unsigned int adcmult, int *r, int *m, int *n)
 574 {
 575         unsigned int delta, tolerance;
 576         int xm, xn, xr;
 577
 578         for (*r = 0; rate < CM_MAXIMUM_RATE/adcmult; *r += (1<<5))
 579                 rate <<= 1;
 580         *n = -1;
 581         if (*r > 0xff)
 582                 goto out;
 583         tolerance = rate*CM_TOLERANCE_RATE;
 584
 585         for (xn = (1+2); xn < (0x1f+2); xn++) {
 586                 for (xm = (1+2); xm < (0xff+2); xm++) {
 587                         xr = ((CM_REFFREQ_XIN/adcmult) * xm) / xn;
 588
 589                         if (xr < rate)
 590                                 delta = rate - xr;
 591                         else
 592                                 delta = xr - rate;
 593
 594                         /*
 595                          * If we found one, remember this,
 596                          * and try to find a closer one
 597                          */
 598                         if (delta < tolerance) {
 599                                 tolerance = delta;
 600                                 *m = xm - 2;
 601                                 *n = xn - 2;
 602                         }
 603                 }
 604         }
 605 out:
 606         return (*n > -1);
 607 }
 608
 609 /*
 610  * Program pll register bits, I assume that the 8 registers 0xf8 upto 0xff
 611  * are mapped onto the 8 ADC/DAC sampling frequency which can be choosen
 612  * at the register CM_REG_FUNCTRL1 (0x04).
 613  * Problem: other ways are also possible (any information about that?)
 614  */
 615 static void snd_cmipci_set_pll(struct cmipci *cm, unsigned int rate, unsigned int slot)
 616 {
 617         unsigned int reg = CM_REG_PLL + slot;
 618         /*
 619          * Guess that this programs at reg. 0x04 the pos 15:13/12:10
 620          * for DSFC/ASFC (000 upto 111).
 621          */
 622
 623         /* FIXME: Init (Do we've to set an other register first before programming?) */
 624
 625         /* FIXME: Is this correct? Or shouldn't the m/n/r values be used for that? */
 626         snd_cmipci_write_b(cm, reg, rate>>8);
 627         snd_cmipci_write_b(cm, reg, rate&0xff);
 628
 629         /* FIXME: Setup (Do we've to set an other register first to enable this?) */
 630 }
 631 #endif /* USE_VAR48KRATE */
 632
 633 static int snd_cmipci_hw_params(struct snd_pcm_substream *substream,
 634                                 struct snd_pcm_hw_params *hw_params)
 635 {
 636         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 637 }
 638
 639 static int snd_cmipci_playback2_hw_params(struct snd_pcm_substream *substream,
 640                                           struct snd_pcm_hw_params *hw_params)
 641 {
 642         struct cmipci *cm = snd_pcm_substream_chip(substream);
 643         if (params_channels(hw_params) > 2) {
 644                 mutex_lock(&cm->open_mutex);
 645                 if (cm->opened[CM_CH_PLAY]) {
 646                         mutex_unlock(&cm->open_mutex);
 647                         return -EBUSY;
 648                 }
 649                 /* reserve the channel A */
 650                 cm->opened[CM_CH_PLAY] = CM_OPEN_PLAYBACK_MULTI;
 651                 mutex_unlock(&cm->open_mutex);
 652         }
 653         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 654 }
 655
 656 static void snd_cmipci_ch_reset(struct cmipci *cm, int ch)
 657 {
 658         int reset = CM_RST_CH0 << (cm->channel[ch].ch);
 659         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl | reset);
 660         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl & ~reset);
 661         udelay(10);
 662 }
 663
 664 static int snd_cmipci_hw_free(struct snd_pcm_substream *substream)
 665 {
 666         return snd_pcm_lib_free_pages(substream);
 667 }
 668
 669
 670 /*
 671  */
 672
 673 static unsigned int hw_channels[] = {1, 2, 4, 5, 6, 8};
 674 static struct snd_pcm_hw_constraint_list hw_constraints_channels_4 = {
 675         .count = 3,
 676         .list = hw_channels,
 677         .mask = 0,
 678 };
 679 static struct snd_pcm_hw_constraint_list hw_constraints_channels_6 = {
 680         .count = 5,
 681         .list = hw_channels,
 682         .mask = 0,
 683 };
 684 static struct snd_pcm_hw_constraint_list hw_constraints_channels_8 = {
 685         .count = 6,
 686         .list = hw_channels,
 687         .mask = 0,
 688 };
 689
 690 static int set_dac_channels(struct cmipci *cm, struct cmipci_pcm *rec, int channels)
 691 {
 692         if (channels > 2) {
 693                 if (! cm->can_multi_ch)
 694                         return -EINVAL;
 695                 if (rec->fmt != 0x03) /* stereo 16bit only */
 696                         return -EINVAL;
 697
 698                 spin_lock_irq(&cm->reg_lock);
 699                 snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG);
 700                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
 701                 if (channels > 4) {
 702                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
 703                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
 704                 } else {
 705                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
 706                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
 707                 }
 708                 if (channels >= 6) {
 709                         snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
 710                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
 711                 } else {
 712                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
 713                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
 714                 }
 715                 if (cm->chip_version == 68) {
 716                         if (channels == 8) {
 717                                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL_8768, CM_CHB3D8C);
 718                         } else {
 719                                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL_8768, CM_CHB3D8C);
 720                         }
 721                 }
 722                 spin_unlock_irq(&cm->reg_lock);
 723
 724         } else {
 725                 if (cm->can_multi_ch) {
 726                         spin_lock_irq(&cm->reg_lock);
 727                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG);
 728                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
 729                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
 730                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
 731                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
 732                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
 733                         spin_unlock_irq(&cm->reg_lock);
 734                 }
 735         }
 736         return 0;
 737 }
 738
 739
 740 /*
 741  * prepare playback/capture channel
 742  * channel to be used must have been set in rec->ch.
 743  */
 744 static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec,
 745                                  struct snd_pcm_substream *substream)
 746 {
 747         unsigned int reg, freq, val;
 748         struct snd_pcm_runtime *runtime = substream->runtime;
 749
 750         rec->fmt = 0;
 751         rec->shift = 0;
 752         if (snd_pcm_format_width(runtime->format) >= 16) {
 753                 rec->fmt |= 0x02;
 754                 if (snd_pcm_format_width(runtime->format) > 16)
 755                         rec->shift++; /* 24/32bit */
 756         }
 757         if (runtime->channels > 1)
 758                 rec->fmt |= 0x01;
 759         if (rec->is_dac && set_dac_channels(cm, rec, runtime->channels) < 0) {
 760                 snd_printd("cannot set dac channels\n");
 761                 return -EINVAL;
 762         }
 763
 764         rec->offset = runtime->dma_addr;
 765         /* buffer and period sizes in frame */
 766         rec->dma_size = runtime->buffer_size << rec->shift;
 767         rec->period_size = runtime->period_size << rec->shift;
 768         if (runtime->channels > 2) {
 769                 /* multi-channels */
 770                 rec->dma_size = (rec->dma_size * runtime->channels) / 2;
 771                 rec->period_size = (rec->period_size * runtime->channels) / 2;
 772         }
 773
 774         spin_lock_irq(&cm->reg_lock);
 775
 776         /* set buffer address */
 777         reg = rec->ch ? CM_REG_CH1_FRAME1 : CM_REG_CH0_FRAME1;
 778         snd_cmipci_write(cm, reg, rec->offset);
 779         /* program sample counts */
 780         reg = rec->ch ? CM_REG_CH1_FRAME2 : CM_REG_CH0_FRAME2;
 781         snd_cmipci_write_w(cm, reg, rec->dma_size - 1);
 782         snd_cmipci_write_w(cm, reg + 2, rec->period_size - 1);
 783
 784         /* set adc/dac flag */
 785         val = rec->ch ? CM_CHADC1 : CM_CHADC0;
 786         if (rec->is_dac)
 787                 cm->ctrl &= ~val;
 788         else
 789                 cm->ctrl |= val;
 790         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
 791         //snd_printd("cmipci: functrl0 = %08x\n", cm->ctrl);
 792
 793         /* set sample rate */
 794         freq = snd_cmipci_rate_freq(runtime->rate);
 795         val = snd_cmipci_read(cm, CM_REG_FUNCTRL1);
 796         if (rec->ch) {
 797                 val &= ~CM_ASFC_MASK;
 798                 val |= (freq << CM_ASFC_SHIFT) & CM_ASFC_MASK;
 799         } else {
 800                 val &= ~CM_DSFC_MASK;
 801                 val |= (freq << CM_DSFC_SHIFT) & CM_DSFC_MASK;
 802         }
 803         snd_cmipci_write(cm, CM_REG_FUNCTRL1, val);
 804         //snd_printd("cmipci: functrl1 = %08x\n", val);
 805
 806         /* set format */
 807         val = snd_cmipci_read(cm, CM_REG_CHFORMAT);
 808         if (rec->ch) {
 809                 val &= ~CM_CH1FMT_MASK;
 810                 val |= rec->fmt << CM_CH1FMT_SHIFT;
 811         } else {
 812                 val &= ~CM_CH0FMT_MASK;
 813                 val |= rec->fmt << CM_CH0FMT_SHIFT;
 814         }
 815         snd_cmipci_write(cm, CM_REG_CHFORMAT, val);
 816         //snd_printd("cmipci: chformat = %08x\n", val);
 817
 818         rec->running = 0;
 819         spin_unlock_irq(&cm->reg_lock);
 820
 821         return 0;
 822 }
 823
 824 /*
 825  * PCM trigger/stop
 826  */
 827 static int snd_cmipci_pcm_trigger(struct cmipci *cm, struct cmipci_pcm *rec,
 828                                   struct snd_pcm_substream *substream, int cmd)
 829 {
 830         unsigned int inthld, chen, reset, pause;
 831         int result = 0;
 832
 833         inthld = CM_CH0_INT_EN << rec->ch;
 834         chen = CM_CHEN0 << rec->ch;
 835         reset = CM_RST_CH0 << rec->ch;
 836         pause = CM_PAUSE0 << rec->ch;
 837
 838         spin_lock(&cm->reg_lock);
 839         switch (cmd) {
 840         case SNDRV_PCM_TRIGGER_START:
 841                 rec->running = 1;
 842                 /* set interrupt */
 843                 snd_cmipci_set_bit(cm, CM_REG_INT_HLDCLR, inthld);
 844                 cm->ctrl |= chen;
 845                 /* enable channel */
 846                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
 847                 //snd_printd("cmipci: functrl0 = %08x\n", cm->ctrl);
 848                 break;
 849         case SNDRV_PCM_TRIGGER_STOP:
 850                 rec->running = 0;
 851                 /* disable interrupt */
 852                 snd_cmipci_clear_bit(cm, CM_REG_INT_HLDCLR, inthld);
 853                 /* reset */
 854                 cm->ctrl &= ~chen;
 855                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl | reset);
 856                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl & ~reset);
 857                 break;
 858         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 859         case SNDRV_PCM_TRIGGER_SUSPEND:
 860                 cm->ctrl |= pause;
 861                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
 862                 break;
 863         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 864         case SNDRV_PCM_TRIGGER_RESUME:
 865                 cm->ctrl &= ~pause;
 866                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
 867                 break;
 868         default:
 869                 result = -EINVAL;
 870                 break;
 871         }
 872         spin_unlock(&cm->reg_lock);
 873         return result;
 874 }
 875
 876 /*
 877  * return the current pointer
 878  */
 879 static snd_pcm_uframes_t snd_cmipci_pcm_pointer(struct cmipci *cm, struct cmipci_pcm *rec,
 880                                                 struct snd_pcm_substream *substream)
 881 {
 882         size_t ptr;
 883         unsigned int reg;
 884         if (!rec->running)
 885                 return 0;
 886 #if 1 // this seems better..
 887         reg = rec->ch ? CM_REG_CH1_FRAME2 : CM_REG_CH0_FRAME2;
 888         ptr = rec->dma_size - (snd_cmipci_read_w(cm, reg) + 1);
 889         ptr >>= rec->shift;
 890 #else
 891         reg = rec->ch ? CM_REG_CH1_FRAME1 : CM_REG_CH0_FRAME1;
 892         ptr = snd_cmipci_read(cm, reg) - rec->offset;
 893         ptr = bytes_to_frames(substream->runtime, ptr);
 894 #endif
 895         if (substream->runtime->channels > 2)
 896                 ptr = (ptr * 2) / substream->runtime->channels;
 897         return ptr;
 898 }
 899
 900 /*
 901  * playback
 902  */
 903
 904 static int snd_cmipci_playback_trigger(struct snd_pcm_substream *substream,
 905                                        int cmd)
 906 {
 907         struct cmipci *cm = snd_pcm_substream_chip(substream);
 908         return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_PLAY], substream, cmd);
 909 }
 910
 911 static snd_pcm_uframes_t snd_cmipci_playback_pointer(struct snd_pcm_substream *substream)
 912 {
 913         struct cmipci *cm = snd_pcm_substream_chip(substream);
 914         return snd_cmipci_pcm_pointer(cm, &cm->channel[CM_CH_PLAY], substream);
 915 }
 916
 917
 918
 919 /*
 920  * capture
 921  */
 922
 923 static int snd_cmipci_capture_trigger(struct snd_pcm_substream *substream,
 924                                      int cmd)
 925 {
 926         struct cmipci *cm = snd_pcm_substream_chip(substream);
 927         return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_CAPT], substream, cmd);
 928 }
 929
 930 static snd_pcm_uframes_t snd_cmipci_capture_pointer(struct snd_pcm_substream *substream)
 931 {
 932         struct cmipci *cm = snd_pcm_substream_chip(substream);
 933         return snd_cmipci_pcm_pointer(cm, &cm->channel[CM_CH_CAPT], substream);
 934 }
 935
 936
 937 /*
 938  * hw preparation for spdif
 939  */
 940
 941 static int snd_cmipci_spdif_default_info(struct snd_kcontrol *kcontrol,
 942                                          struct snd_ctl_elem_info *uinfo)
 943 {
 944         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 945         uinfo->count = 1;
 946         return 0;
 947 }
 948
 949 static int snd_cmipci_spdif_default_get(struct snd_kcontrol *kcontrol,
 950                                         struct snd_ctl_elem_value *ucontrol)
 951 {
 952         struct cmipci *chip = snd_kcontrol_chip(kcontrol);
 953         int i;
 954
 955         spin_lock_irq(&chip->reg_lock);
 956         for (i = 0; i < 4; i++)
 957                 ucontrol->value.iec958.status[i] = (chip->dig_status >> (i * 8)) & 0xff;
 958         spin_unlock_irq(&chip->reg_lock);
 959         return 0;
 960 }
 961
 962 static int snd_cmipci_spdif_default_put(struct snd_kcontrol *kcontrol,
 963                                          struct snd_ctl_elem_value *ucontrol)
 964 {
 965         struct cmipci *chip = snd_kcontrol_chip(kcontrol);
 966         int i, change;
 967         unsigned int val;
 968
 969         val = 0;
 970         spin_lock_irq(&chip->reg_lock);
 971         for (i = 0; i < 4; i++)
 972                 val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
 973         change = val != chip->dig_status;
 974         chip->dig_status = val;
 975         spin_unlock_irq(&chip->reg_lock);
 976         return change;
 977 }
 978
 979 static struct snd_kcontrol_new snd_cmipci_spdif_default __devinitdata =
 980 {
 981         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
 982         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 983         .info =         snd_cmipci_spdif_default_info,
 984         .get =          snd_cmipci_spdif_default_get,
 985         .put =          snd_cmipci_spdif_default_put
 986 };
 987
 988 static int snd_cmipci_spdif_mask_info(struct snd_kcontrol *kcontrol,
 989                                       struct snd_ctl_elem_info *uinfo)
 990 {
 991         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 992         uinfo->count = 1;
 993         return 0;
 994 }
 995
 996 static int snd_cmipci_spdif_mask_get(struct snd_kcontrol *kcontrol,
 997                                      struct snd_ctl_elem_value *ucontrol)
 998 {
 999         ucontrol->value.iec958.status[0] = 0xff;
1000         ucontrol->value.iec958.status[1] = 0xff;
1001         ucontrol->value.iec958.status[2] = 0xff;
1002         ucontrol->value.iec958.status[3] = 0xff;
1003         return 0;
1004 }
1005
1006 static struct snd_kcontrol_new snd_cmipci_spdif_mask __devinitdata =
1007 {
1008         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1009         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1010         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1011         .info =         snd_cmipci_spdif_mask_info,
1012         .get =          snd_cmipci_spdif_mask_get,
1013 };
1014
1015 static int snd_cmipci_spdif_stream_info(struct snd_kcontrol *kcontrol,
1016                                         struct snd_ctl_elem_info *uinfo)
1017 {
1018         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1019         uinfo->count = 1;
1020         return 0;
1021 }
1022
1023 static int snd_cmipci_spdif_stream_get(struct snd_kcontrol *kcontrol,
1024                                        struct snd_ctl_elem_value *ucontrol)
1025 {
1026         struct cmipci *chip = snd_kcontrol_chip(kcontrol);
1027         int i;
1028
1029         spin_lock_irq(&chip->reg_lock);
1030         for (i = 0; i < 4; i++)
1031                 ucontrol->value.iec958.status[i] = (chip->dig_pcm_status >> (i * 8)) & 0xff;
1032         spin_unlock_irq(&chip->reg_lock);
1033         return 0;
1034 }
1035
1036 static int snd_cmipci_spdif_stream_put(struct snd_kcontrol *kcontrol,
1037                                        struct snd_ctl_elem_value *ucontrol)
1038 {
1039         struct cmipci *chip = snd_kcontrol_chip(kcontrol);
1040         int i, change;
1041         unsigned int val;
1042
1043         val = 0;
1044         spin_lock_irq(&chip->reg_lock);
1045         for (i = 0; i < 4; i++)
1046                 val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
1047         change = val != chip->dig_pcm_status;
1048         chip->dig_pcm_status = val;
1049         spin_unlock_irq(&chip->reg_lock);
1050         return change;
1051 }
1052
1053 static struct snd_kcontrol_new snd_cmipci_spdif_stream __devinitdata =
1054 {
1055         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1056         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1057         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
1058         .info =         snd_cmipci_spdif_stream_info,
1059         .get =          snd_cmipci_spdif_stream_get,
1060         .put =          snd_cmipci_spdif_stream_put
1061 };
1062
1063 /*
1064  */
1065
1066 /* save mixer setting and mute for AC3 playback */
1067 static int save_mixer_state(struct cmipci *cm)
1068 {
1069         if (! cm->mixer_insensitive) {
1070                 struct snd_ctl_elem_value *val;
1071                 unsigned int i;
1072
1073                 val = kmalloc(sizeof(*val), GFP_ATOMIC);
1074                 if (!val)
1075                         return -ENOMEM;
1076                 for (i = 0; i < CM_SAVED_MIXERS; i++) {
1077                         struct snd_kcontrol *ctl = cm->mixer_res_ctl[i];
1078                         if (ctl) {
1079                                 int event;
1080                                 memset(val, 0, sizeof(*val));
1081                                 ctl->get(ctl, val);
1082                                 cm->mixer_res_status[i] = val->value.integer.value[0];
1083                                 val->value.integer.value[0] = cm_saved_mixer[i].toggle_on;
1084                                 event = SNDRV_CTL_EVENT_MASK_INFO;
1085                                 if (cm->mixer_res_status[i] != val->value.integer.value[0]) {
1086                                         ctl->put(ctl, val); /* toggle */
1087                                         event |= SNDRV_CTL_EVENT_MASK_VALUE;
1088                                 }
1089                                 ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1090                                 snd_ctl_notify(cm->card, event, &ctl->id);
1091                         }
1092                 }
1093                 kfree(val);
1094                 cm->mixer_insensitive = 1;
1095         }
1096         return 0;
1097 }
1098
1099
1100 /* restore the previously saved mixer status */
1101 static void restore_mixer_state(struct cmipci *cm)
1102 {
1103         if (cm->mixer_insensitive) {
1104                 struct snd_ctl_elem_value *val;
1105                 unsigned int i;
1106
1107                 val = kmalloc(sizeof(*val), GFP_KERNEL);
1108                 if (!val)
1109                         return;
1110                 cm->mixer_insensitive = 0; /* at first clear this;
1111                                               otherwise the changes will be ignored */
1112                 for (i = 0; i < CM_SAVED_MIXERS; i++) {
1113                         struct snd_kcontrol *ctl = cm->mixer_res_ctl[i];
1114                         if (ctl) {
1115                                 int event;
1116
1117                                 memset(val, 0, sizeof(*val));
1118                                 ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1119                                 ctl->get(ctl, val);
1120                                 event = SNDRV_CTL_EVENT_MASK_INFO;
1121                                 if (val->value.integer.value[0] != cm->mixer_res_status[i]) {
1122                                         val->value.integer.value[0] = cm->mixer_res_status[i];
1123                                         ctl->put(ctl, val);
1124                                         event |= SNDRV_CTL_EVENT_MASK_VALUE;
1125                                 }
1126                                 snd_ctl_notify(cm->card, event, &ctl->id);
1127                         }
1128                 }
1129                 kfree(val);
1130         }
1131 }
1132
1133 /* spinlock held! */
1134 static void setup_ac3(struct cmipci *cm, struct snd_pcm_substream *subs, int do_ac3, int rate)
1135 {
1136         if (do_ac3) {
1137                 /* AC3EN for 037 */
1138                 snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_AC3EN1);
1139                 /* AC3EN for 039 */
1140                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_AC3EN2);
1141
1142                 if (cm->can_ac3_hw) {
1143                         /* SPD24SEL for 037, 0x02 */
1144                         /* SPD24SEL for 039, 0x20, but cannot be set */
1145                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1146                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1147                 } else { /* can_ac3_sw */
1148                         /* SPD32SEL for 037 & 039, 0x20 */
1149                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1150                         /* set 176K sample rate to fix 033 HW bug */
1151                         if (cm->chip_version == 33) {
1152                                 if (rate >= 48000) {
1153                                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1154                                 } else {
1155                                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1156                                 }
1157                         }
1158                 }
1159
1160         } else {
1161                 snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_AC3EN1);
1162                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_AC3EN2);
1163
1164                 if (cm->can_ac3_hw) {
1165                         /* chip model >= 37 */
1166                         if (snd_pcm_format_width(subs->runtime->format) > 16) {
1167                                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1168                                 snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1169                         } else {
1170                                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1171                                 snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1172                         }
1173                 } else {
1174                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1175                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1176                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1177                 }
1178         }
1179 }
1180
1181 static int setup_spdif_playback(struct cmipci *cm, struct snd_pcm_substream *subs, int up, int do_ac3)
1182 {
1183         int rate, err;
1184
1185         rate = subs->runtime->rate;
1186
1187         if (up && do_ac3)
1188                 if ((err = save_mixer_state(cm)) < 0)
1189                         return err;
1190
1191         spin_lock_irq(&cm->reg_lock);
1192         cm->spdif_playback_avail = up;
1193         if (up) {
1194                 /* they are controlled via "IEC958 Output Switch" */
1195                 /* snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); */
1196                 /* snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_SPDO2DAC); */
1197                 if (cm->spdif_playback_enabled)
1198                         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
1199                 setup_ac3(cm, subs, do_ac3, rate);
1200
1201                 if (rate == 48000)
1202                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
1203                 else
1204                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
1205
1206         } else {
1207                 /* they are controlled via "IEC958 Output Switch" */
1208                 /* snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); */
1209                 /* snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_SPDO2DAC); */
1210                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
1211                 setup_ac3(cm, subs, 0, 0);
1212         }
1213         spin_unlock_irq(&cm->reg_lock);
1214         return 0;
1215 }
1216
1217
1218 /*
1219  * preparation
1220  */
1221
1222 /* playback - enable spdif only on the certain condition */
1223 static int snd_cmipci_playback_prepare(struct snd_pcm_substream *substream)
1224 {
1225         struct cmipci *cm = snd_pcm_substream_chip(substream);
1226         int rate = substream->runtime->rate;
1227         int err, do_spdif, do_ac3 = 0;
1228
1229         do_spdif = ((rate == 44100 || rate == 48000) &&
1230                     substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE &&
1231                     substream->runtime->channels == 2);
1232         if (do_spdif && cm->can_ac3_hw)
1233                 do_ac3 = cm->dig_pcm_status & IEC958_AES0_NONAUDIO;
1234         if ((err = setup_spdif_playback(cm, substream, do_spdif, do_ac3)) < 0)
1235                 return err;
1236         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_PLAY], substream);
1237 }
1238
1239 /* playback  (via device #2) - enable spdif always */
1240 static int snd_cmipci_playback_spdif_prepare(struct snd_pcm_substream *substream)
1241 {
1242         struct cmipci *cm = snd_pcm_substream_chip(substream);
1243         int err, do_ac3;
1244
1245         if (cm->can_ac3_hw)
1246                 do_ac3 = cm->dig_pcm_status & IEC958_AES0_NONAUDIO;
1247         else
1248                 do_ac3 = 1; /* doesn't matter */
1249         if ((err = setup_spdif_playback(cm, substream, 1, do_ac3)) < 0)
1250                 return err;
1251         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_PLAY], substream);
1252 }
1253
1254 static int snd_cmipci_playback_hw_free(struct snd_pcm_substream *substream)
1255 {
1256         struct cmipci *cm = snd_pcm_substream_chip(substream);
1257         setup_spdif_playback(cm, substream, 0, 0);
1258         restore_mixer_state(cm);
1259         return snd_cmipci_hw_free(substream);
1260 }
1261
1262 /* capture */
1263 static int snd_cmipci_capture_prepare(struct snd_pcm_substream *substream)
1264 {
1265         struct cmipci *cm = snd_pcm_substream_chip(substream);
1266         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_CAPT], substream);
1267 }
1268
1269 /* capture with spdif (via device #2) */
1270 static int snd_cmipci_capture_spdif_prepare(struct snd_pcm_substream *substream)
1271 {
1272         struct cmipci *cm = snd_pcm_substream_chip(substream);
1273
1274         spin_lock_irq(&cm->reg_lock);
1275         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_CAPTURE_SPDF);
1276         spin_unlock_irq(&cm->reg_lock);
1277
1278         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_CAPT], substream);
1279 }
1280
1281 static int snd_cmipci_capture_spdif_hw_free(struct snd_pcm_substream *subs)
1282 {
1283         struct cmipci *cm = snd_pcm_substream_chip(subs);
1284
1285         spin_lock_irq(&cm->reg_lock);
1286         snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_CAPTURE_SPDF);
1287         spin_unlock_irq(&cm->reg_lock);
1288
1289         return snd_cmipci_hw_free(subs);
1290 }
1291
1292
1293 /*
1294  * interrupt handler
1295  */
1296 static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id)
1297 {
1298         struct cmipci *cm = dev_id;
1299         unsigned int status, mask = 0;
1300
1301         /* fastpath out, to ease interrupt sharing */
1302         status = snd_cmipci_read(cm, CM_REG_INT_STATUS);
1303         if (!(status & CM_INTR))
1304                 return IRQ_NONE;
1305
1306         /* acknowledge interrupt */
1307         spin_lock(&cm->reg_lock);
1308         if (status & CM_CHINT0)
1309                 mask |= CM_CH0_INT_EN;
1310         if (status & CM_CHINT1)
1311                 mask |= CM_CH1_INT_EN;
1312         snd_cmipci_clear_bit(cm, CM_REG_INT_HLDCLR, mask);
1313         snd_cmipci_set_bit(cm, CM_REG_INT_HLDCLR, mask);
1314         spin_unlock(&cm->reg_lock);
1315
1316         if (cm->rmidi && (status & CM_UARTINT))
1317                 snd_mpu401_uart_interrupt(irq, cm->rmidi->private_data);
1318
1319         if (cm->pcm) {
1320                 if ((status & CM_CHINT0) && cm->channel[0].running)
1321                         snd_pcm_period_elapsed(cm->channel[0].substream);
1322                 if ((status & CM_CHINT1) && cm->channel[1].running)
1323                         snd_pcm_period_elapsed(cm->channel[1].substream);
1324         }
1325         return IRQ_HANDLED;
1326 }
1327
1328 /*
1329  * h/w infos
1330  */
1331
1332 /* playback on channel A */
1333 static struct snd_pcm_hardware snd_cmipci_playback =
1334 {
1335         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1336                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1337                                  SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
1338         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1339         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1340         .rate_min =             5512,
1341         .rate_max =             48000,
1342         .channels_min =         1,
1343         .channels_max =         2,
1344         .buffer_bytes_max =     (128*1024),
1345         .period_bytes_min =     64,
1346         .period_bytes_max =     (128*1024),
1347         .periods_min =          2,
1348         .periods_max =          1024,
1349         .fifo_size =            0,
1350 };
1351
1352 /* capture on channel B */
1353 static struct snd_pcm_hardware snd_cmipci_capture =
1354 {
1355         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1356                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1357                                  SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
1358         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1359         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1360         .rate_min =             5512,
1361         .rate_max =             48000,
1362         .channels_min =         1,
1363         .channels_max =         2,
1364         .buffer_bytes_max =     (128*1024),
1365         .period_bytes_min =     64,
1366         .period_bytes_max =     (128*1024),
1367         .periods_min =          2,
1368         .periods_max =          1024,
1369         .fifo_size =            0,
1370 };
1371
1372 /* playback on channel B - stereo 16bit only? */
1373 static struct snd_pcm_hardware snd_cmipci_playback2 =
1374 {
1375         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1376                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1377                                  SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
1378         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1379         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1380         .rate_min =             5512,
1381         .rate_max =             48000,
1382         .channels_min =         2,
1383         .channels_max =         2,
1384         .buffer_bytes_max =     (128*1024),
1385         .period_bytes_min =     64,
1386         .period_bytes_max =     (128*1024),
1387         .periods_min =          2,
1388         .periods_max =          1024,
1389         .fifo_size =            0,
1390 };
1391
1392 /* spdif playback on channel A */
1393 static struct snd_pcm_hardware snd_cmipci_playback_spdif =
1394 {
1395         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1396                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1397                                  SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
1398         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1399         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1400         .rate_min =             44100,
1401         .rate_max =             48000,
1402         .channels_min =         2,
1403         .channels_max =         2,
1404         .buffer_bytes_max =     (128*1024),
1405         .period_bytes_min =     64,
1406         .period_bytes_max =     (128*1024),
1407         .periods_min =          2,
1408         .periods_max =          1024,
1409         .fifo_size =            0,
1410 };
1411
1412 /* spdif playback on channel A (32bit, IEC958 subframes) */
1413 static struct snd_pcm_hardware snd_cmipci_playback_iec958_subframe =
1414 {
1415         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1416                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1417                                  SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
1418         .formats =              SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
1419         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1420         .rate_min =             44100,
1421         .rate_max =             48000,
1422         .channels_min =         2,
1423         .channels_max =         2,
1424         .buffer_bytes_max =     (128*1024),
1425         .period_bytes_min =     64,
1426         .period_bytes_max =     (128*1024),
1427         .periods_min =          2,
1428         .periods_max =          1024,
1429         .fifo_size =            0,
1430 };
1431
1432 /* spdif capture on channel B */
1433 static struct snd_pcm_hardware snd_cmipci_capture_spdif =
1434 {
1435         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1436                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1437                                  SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
1438         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1439         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1440         .rate_min =             44100,
1441         .rate_max =             48000,
1442         .channels_min =         2,
1443         .channels_max =         2,
1444         .buffer_bytes_max =     (128*1024),
1445         .period_bytes_min =     64,
1446         .period_bytes_max =     (128*1024),
1447         .periods_min =          2,
1448         .periods_max =          1024,
1449         .fifo_size =            0,
1450 };
1451
1452 /*
1453  * check device open/close
1454  */
1455 static int open_device_check(struct cmipci *cm, int mode, struct snd_pcm_substream *subs)
1456 {
1457         int ch = mode & CM_OPEN_CH_MASK;
1458
1459         /* FIXME: a file should wait until the device becomes free
1460          * when it's opened on blocking mode.  however, since the current
1461          * pcm framework doesn't pass file pointer before actually opened,
1462          * we can't know whether blocking mode or not in open callback..
1463          */
1464         mutex_lock(&cm->open_mutex);
1465         if (cm->opened[ch]) {
1466                 mutex_unlock(&cm->open_mutex);
1467                 return -EBUSY;
1468         }
1469         cm->opened[ch] = mode;
1470         cm->channel[ch].substream = subs;
1471         if (! (mode & CM_OPEN_DAC)) {
1472                 /* disable dual DAC mode */
1473                 cm->channel[ch].is_dac = 0;
1474                 spin_lock_irq(&cm->reg_lock);
1475                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC);
1476                 spin_unlock_irq(&cm->reg_lock);
1477         }
1478         mutex_unlock(&cm->open_mutex);
1479         return 0;
1480 }
1481
1482 static void close_device_check(struct cmipci *cm, int mode)
1483 {
1484         int ch = mode & CM_OPEN_CH_MASK;
1485
1486         mutex_lock(&cm->open_mutex);
1487         if (cm->opened[ch] == mode) {
1488                 if (cm->channel[ch].substream) {
1489                         snd_cmipci_ch_reset(cm, ch);
1490                         cm->channel[ch].running = 0;
1491                         cm->channel[ch].substream = NULL;
1492                 }
1493                 cm->opened[ch] = 0;
1494                 if (! cm->channel[ch].is_dac) {
1495                         /* enable dual DAC mode again */
1496                         cm->channel[ch].is_dac = 1;
1497                         spin_lock_irq(&cm->reg_lock);
1498                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC);
1499                         spin_unlock_irq(&cm->reg_lock);
1500                 }
1501         }
1502         mutex_unlock(&cm->open_mutex);
1503 }
1504
1505 /*
1506  */
1507
1508 static int snd_cmipci_playback_open(struct snd_pcm_substream *substream)
1509 {
1510         struct cmipci *cm = snd_pcm_substream_chip(substream);
1511         struct snd_pcm_runtime *runtime = substream->runtime;
1512         int err;
1513
1514         if ((err = open_device_check(cm, CM_OPEN_PLAYBACK, substream)) < 0)
1515                 return err;
1516         runtime->hw = snd_cmipci_playback;
1517         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1518         cm->dig_pcm_status = cm->dig_status;
1519         return 0;
1520 }
1521
1522 static int snd_cmipci_capture_open(struct snd_pcm_substream *substream)
1523 {
1524         struct cmipci *cm = snd_pcm_substream_chip(substream);
1525         struct snd_pcm_runtime *runtime = substream->runtime;
1526         int err;
1527
1528         if ((err = open_device_check(cm, CM_OPEN_CAPTURE, substream)) < 0)
1529                 return err;
1530         runtime->hw = snd_cmipci_capture;
1531         if (cm->chip_version == 68) {   // 8768 only supports 44k/48k recording
1532                 runtime->hw.rate_min = 41000;
1533                 runtime->hw.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000;
1534         }
1535         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1536         return 0;
1537 }
1538
1539 static int snd_cmipci_playback2_open(struct snd_pcm_substream *substream)
1540 {
1541         struct cmipci *cm = snd_pcm_substream_chip(substream);
1542         struct snd_pcm_runtime *runtime = substream->runtime;
1543         int err;
1544
1545         if ((err = open_device_check(cm, CM_OPEN_PLAYBACK2, substream)) < 0) /* use channel B */
1546                 return err;
1547         runtime->hw = snd_cmipci_playback2;
1548         mutex_lock(&cm->open_mutex);
1549         if (! cm->opened[CM_CH_PLAY]) {
1550                 if (cm->can_multi_ch) {
1551                         runtime->hw.channels_max = cm->max_channels;
1552                         if (cm->max_channels == 4)
1553                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_4);
1554                         else if (cm->max_channels == 6)
1555                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_6);
1556                         else if (cm->max_channels == 8)
1557                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_8);
1558                 }
1559                 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1560         }
1561         mutex_unlock(&cm->open_mutex);
1562         return 0;
1563 }
1564
1565 static int snd_cmipci_playback_spdif_open(struct snd_pcm_substream *substream)
1566 {
1567         struct cmipci *cm = snd_pcm_substream_chip(substream);
1568         struct snd_pcm_runtime *runtime = substream->runtime;
1569         int err;
1570
1571         if ((err = open_device_check(cm, CM_OPEN_SPDIF_PLAYBACK, substream)) < 0) /* use channel A */
1572                 return err;
1573         if (cm->can_ac3_hw) {
1574                 runtime->hw = snd_cmipci_playback_spdif;
1575                 if (cm->chip_version >= 37)
1576                         runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1577         } else {
1578                 runtime->hw = snd_cmipci_playback_iec958_subframe;
1579         }
1580         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x40000);
1581         cm->dig_pcm_status = cm->dig_status;
1582         return 0;
1583 }
1584
1585 static int snd_cmipci_capture_spdif_open(struct snd_pcm_substream *substream)
1586 {
1587         struct cmipci *cm = snd_pcm_substream_chip(substream);
1588         struct snd_pcm_runtime *runtime = substream->runtime;
1589         int err;
1590
1591         if ((err = open_device_check(cm, CM_OPEN_SPDIF_CAPTURE, substream)) < 0) /* use channel B */
1592                 return err;
1593         runtime->hw = snd_cmipci_capture_spdif;
1594         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x40000);
1595         return 0;
1596 }
1597
1598
1599 /*
1600  */
1601
1602 static int snd_cmipci_playback_close(struct snd_pcm_substream *substream)
1603 {
1604         struct cmipci *cm = snd_pcm_substream_chip(substream);
1605         close_device_check(cm, CM_OPEN_PLAYBACK);
1606         return 0;
1607 }
1608
1609 static int snd_cmipci_capture_close(struct snd_pcm_substream *substream)
1610 {
1611         struct cmipci *cm = snd_pcm_substream_chip(substream);
1612         close_device_check(cm, CM_OPEN_CAPTURE);
1613         return 0;
1614 }
1615
1616 static int snd_cmipci_playback2_close(struct snd_pcm_substream *substream)
1617 {
1618         struct cmipci *cm = snd_pcm_substream_chip(substream);
1619         close_device_check(cm, CM_OPEN_PLAYBACK2);
1620         close_device_check(cm, CM_OPEN_PLAYBACK_MULTI);
1621         return 0;
1622 }
1623
1624 static int snd_cmipci_playback_spdif_close(struct snd_pcm_substream *substream)
1625 {
1626         struct cmipci *cm = snd_pcm_substream_chip(substream);
1627         close_device_check(cm, CM_OPEN_SPDIF_PLAYBACK);
1628         return 0;
1629 }
1630
1631 static int snd_cmipci_capture_spdif_close(struct snd_pcm_substream *substream)
1632 {
1633         struct cmipci *cm = snd_pcm_substream_chip(substream);
1634         close_device_check(cm, CM_OPEN_SPDIF_CAPTURE);
1635         return 0;
1636 }
1637
1638
1639 /*
1640  */
1641
1642 static struct snd_pcm_ops snd_cmipci_playback_ops = {
1643         .open =         snd_cmipci_playback_open,
1644         .close =        snd_cmipci_playback_close,
1645         .ioctl =        snd_pcm_lib_ioctl,
1646         .hw_params =    snd_cmipci_hw_params,
1647         .hw_free =      snd_cmipci_playback_hw_free,
1648         .prepare =      snd_cmipci_playback_prepare,
1649         .trigger =      snd_cmipci_playback_trigger,
1650         .pointer =      snd_cmipci_playback_pointer,
1651 };
1652
1653 static struct snd_pcm_ops snd_cmipci_capture_ops = {
1654         .open =         snd_cmipci_capture_open,
1655         .close =        snd_cmipci_capture_close,
1656         .ioctl =        snd_pcm_lib_ioctl,
1657         .hw_params =    snd_cmipci_hw_params,
1658         .hw_free =      snd_cmipci_hw_free,
1659         .prepare =      snd_cmipci_capture_prepare,
1660         .trigger =      snd_cmipci_capture_trigger,
1661         .pointer =      snd_cmipci_capture_pointer,
1662 };
1663
1664 static struct snd_pcm_ops snd_cmipci_playback2_ops = {
1665         .open =         snd_cmipci_playback2_open,
1666         .close =        snd_cmipci_playback2_close,
1667         .ioctl =        snd_pcm_lib_ioctl,
1668         .hw_params =    snd_cmipci_playback2_hw_params,
1669         .hw_free =      snd_cmipci_hw_free,
1670         .prepare =      snd_cmipci_capture_prepare,     /* channel B */
1671         .trigger =      snd_cmipci_capture_trigger,     /* channel B */
1672         .pointer =      snd_cmipci_capture_pointer,     /* channel B */
1673 };
1674
1675 static struct snd_pcm_ops snd_cmipci_playback_spdif_ops = {
1676         .open =         snd_cmipci_playback_spdif_open,
1677         .close =        snd_cmipci_playback_spdif_close,
1678         .ioctl =        snd_pcm_lib_ioctl,
1679         .hw_params =    snd_cmipci_hw_params,
1680         .hw_free =      snd_cmipci_playback_hw_free,
1681         .prepare =      snd_cmipci_playback_spdif_prepare,      /* set up rate */
1682         .trigger =      snd_cmipci_playback_trigger,
1683         .pointer =      snd_cmipci_playback_pointer,
1684 };
1685
1686 static struct snd_pcm_ops snd_cmipci_capture_spdif_ops = {
1687         .open =         snd_cmipci_capture_spdif_open,
1688         .close =        snd_cmipci_capture_spdif_close,
1689         .ioctl =        snd_pcm_lib_ioctl,
1690         .hw_params =    snd_cmipci_hw_params,
1691         .hw_free =      snd_cmipci_capture_spdif_hw_free,
1692         .prepare =      snd_cmipci_capture_spdif_prepare,
1693         .trigger =      snd_cmipci_capture_trigger,
1694         .pointer =      snd_cmipci_capture_pointer,
1695 };
1696
1697
1698 /*
1699  */
1700
1701 static int __devinit snd_cmipci_pcm_new(struct cmipci *cm, int device)
1702 {
1703         struct snd_pcm *pcm;
1704         int err;
1705
1706         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 1, &pcm);
1707         if (err < 0)
1708                 return err;
1709
1710         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback_ops);
1711         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cmipci_capture_ops);
1712
1713         pcm->private_data = cm;
1714         pcm->info_flags = 0;
1715         strcpy(pcm->name, "C-Media PCI DAC/ADC");
1716         cm->pcm = pcm;
1717
1718         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1719                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1720
1721         return 0;
1722 }
1723
1724 static int __devinit snd_cmipci_pcm2_new(struct cmipci *cm, int device)
1725 {
1726         struct snd_pcm *pcm;
1727         int err;
1728
1729         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 0, &pcm);
1730         if (err < 0)
1731                 return err;
1732
1733         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback2_ops);
1734
1735         pcm->private_data = cm;
1736         pcm->info_flags = 0;
1737         strcpy(pcm->name, "C-Media PCI 2nd DAC");
1738         cm->pcm2 = pcm;
1739
1740         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1741                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1742
1743         return 0;
1744 }
1745
1746 static int __devinit snd_cmipci_pcm_spdif_new(struct cmipci *cm, int device)
1747 {
1748         struct snd_pcm *pcm;
1749         int err;
1750
1751         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 1, &pcm);
1752         if (err < 0)
1753                 return err;
1754
1755         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback_spdif_ops);
1756         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cmipci_capture_spdif_ops);
1757
1758         pcm->private_data = cm;
1759         pcm->info_flags = 0;
1760         strcpy(pcm->name, "C-Media PCI IEC958");
1761         cm->pcm_spdif = pcm;
1762
1763         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1764                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1765
1766         return 0;
1767 }
1768
1769 /*
1770  * mixer interface:
1771  * - CM8338/8738 has a compatible mixer interface with SB16, but
1772  *   lack of some elements like tone control, i/o gain and AGC.
1773  * - Access to native registers:
1774  *   - A 3D switch
1775  *   - Output mute switches
1776  */
1777
1778 static void snd_cmipci_mixer_write(struct cmipci *s, unsigned char idx, unsigned char data)
1779 {
1780         outb(idx, s->iobase + CM_REG_SB16_ADDR);
1781         outb(data, s->iobase + CM_REG_SB16_DATA);
1782 }
1783
1784 static unsigned char snd_cmipci_mixer_read(struct cmipci *s, unsigned char idx)
1785 {
1786         unsigned char v;
1787
1788         outb(idx, s->iobase + CM_REG_SB16_ADDR);
1789         v = inb(s->iobase + CM_REG_SB16_DATA);
1790         return v;
1791 }
1792
1793 /*
1794  * general mixer element
1795  */
1796 struct cmipci_sb_reg {
1797         unsigned int left_reg, right_reg;
1798         unsigned int left_shift, right_shift;
1799         unsigned int mask;
1800         unsigned int invert: 1;
1801         unsigned int stereo: 1;
1802 };
1803
1804 #define COMPOSE_SB_REG(lreg,rreg,lshift,rshift,mask,invert,stereo) \
1805  ((lreg) | ((rreg) << 8) | (lshift << 16) | (rshift << 19) | (mask << 24) | (invert << 22) | (stereo << 23))
1806
1807 #define CMIPCI_DOUBLE(xname, left_reg, right_reg, left_shift, right_shift, mask, invert, stereo) \
1808 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1809   .info = snd_cmipci_info_volume, \
1810   .get = snd_cmipci_get_volume, .put = snd_cmipci_put_volume, \
1811   .private_value = COMPOSE_SB_REG(left_reg, right_reg, left_shift, right_shift, mask, invert, stereo), \
1812 }
1813
1814 #define CMIPCI_SB_VOL_STEREO(xname,reg,shift,mask) CMIPCI_DOUBLE(xname, reg, reg+1, shift, shift, mask, 0, 1)
1815 #define CMIPCI_SB_VOL_MONO(xname,reg,shift,mask) CMIPCI_DOUBLE(xname, reg, reg, shift, shift, mask, 0, 0)
1816 #define CMIPCI_SB_SW_STEREO(xname,lshift,rshift) CMIPCI_DOUBLE(xname, SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, lshift, rshift, 1, 0, 1)
1817 #define CMIPCI_SB_SW_MONO(xname,shift) CMIPCI_DOUBLE(xname, SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, shift, shift, 1, 0, 0)
1818
1819 static void cmipci_sb_reg_decode(struct cmipci_sb_reg *r, unsigned long val)
1820 {
1821         r->left_reg = val & 0xff;
1822         r->right_reg = (val >> 8) & 0xff;
1823         r->left_shift = (val >> 16) & 0x07;
1824         r->right_shift = (val >> 19) & 0x07;
1825         r->invert = (val >> 22) & 1;
1826         r->stereo = (val >> 23) & 1;
1827         r->mask = (val >> 24) & 0xff;
1828 }
1829
1830 static int snd_cmipci_info_volume(struct snd_kcontrol *kcontrol,
1831                                   struct snd_ctl_elem_info *uinfo)
1832 {
1833         struct cmipci_sb_reg reg;
1834
1835         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1836         uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1837         uinfo->count = reg.stereo + 1;
1838         uinfo->value.integer.min = 0;
1839         uinfo->value.integer.max = reg.mask;
1840         return 0;
1841 }
1842
1843 static int snd_cmipci_get_volume(struct snd_kcontrol *kcontrol,
1844                                  struct snd_ctl_elem_value *ucontrol)
1845 {
1846         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
1847         struct cmipci_sb_reg reg;
1848         int val;
1849
1850         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1851         spin_lock_irq(&cm->reg_lock);
1852         val = (snd_cmipci_mixer_read(cm, reg.left_reg) >> reg.left_shift) & reg.mask;
1853         if (reg.invert)
1854                 val = reg.mask - val;
1855         ucontrol->value.integer.value[0] = val;
1856         if (reg.stereo) {
1857                 val = (snd_cmipci_mixer_read(cm, reg.right_reg) >> reg.right_shift) & reg.mask;
1858                 if (reg.invert)
1859                         val = reg.mask - val;
1860                  ucontrol->value.integer.value[1] = val;
1861         }
1862         spin_unlock_irq(&cm->reg_lock);
1863         return 0;
1864 }
1865
1866 static int snd_cmipci_put_volume(struct snd_kcontrol *kcontrol,
1867                                  struct snd_ctl_elem_value *ucontrol)
1868 {
1869         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
1870         struct cmipci_sb_reg reg;
1871         int change;
1872         int left, right, oleft, oright;
1873
1874         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1875         left = ucontrol->value.integer.value[0] & reg.mask;
1876         if (reg.invert)
1877                 left = reg.mask - left;
1878         left <<= reg.left_shift;
1879         if (reg.stereo) {
1880                 right = ucontrol->value.integer.value[1] & reg.mask;
1881                 if (reg.invert)
1882                         right = reg.mask - right;
1883                 right <<= reg.right_shift;
1884         } else
1885                 right = 0;
1886         spin_lock_irq(&cm->reg_lock);
1887         oleft = snd_cmipci_mixer_read(cm, reg.left_reg);
1888         left |= oleft & ~(reg.mask << reg.left_shift);
1889         change = left != oleft;
1890         if (reg.stereo) {
1891                 if (reg.left_reg != reg.right_reg) {
1892                         snd_cmipci_mixer_write(cm, reg.left_reg, left);
1893                         oright = snd_cmipci_mixer_read(cm, reg.right_reg);
1894                 } else
1895                         oright = left;
1896                 right |= oright & ~(reg.mask << reg.right_shift);
1897                 change |= right != oright;
1898                 snd_cmipci_mixer_write(cm, reg.right_reg, right);
1899         } else
1900                 snd_cmipci_mixer_write(cm, reg.left_reg, left);
1901         spin_unlock_irq(&cm->reg_lock);
1902         return change;
1903 }
1904
1905 /*
1906  * input route (left,right) -> (left,right)
1907  */
1908 #define CMIPCI_SB_INPUT_SW(xname, left_shift, right_shift) \
1909 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1910   .info = snd_cmipci_info_input_sw, \
1911   .get = snd_cmipci_get_input_sw, .put = snd_cmipci_put_input_sw, \
1912   .private_value = COMPOSE_SB_REG(SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, left_shift, right_shift, 1, 0, 1), \
1913 }
1914
1915 static int snd_cmipci_info_input_sw(struct snd_kcontrol *kcontrol,
1916                                     struct snd_ctl_elem_info *uinfo)
1917 {
1918         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1919         uinfo->count = 4;
1920         uinfo->value.integer.min = 0;
1921         uinfo->value.integer.max = 1;
1922         return 0;
1923 }
1924
1925 static int snd_cmipci_get_input_sw(struct snd_kcontrol *kcontrol,
1926                                    struct snd_ctl_elem_value *ucontrol)
1927 {
1928         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
1929         struct cmipci_sb_reg reg;
1930         int val1, val2;
1931
1932         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1933         spin_lock_irq(&cm->reg_lock);
1934         val1 = snd_cmipci_mixer_read(cm, reg.left_reg);
1935         val2 = snd_cmipci_mixer_read(cm, reg.right_reg);
1936         spin_unlock_irq(&cm->reg_lock);
1937         ucontrol->value.integer.value[0] = (val1 >> reg.left_shift) & 1;
1938         ucontrol->value.integer.value[1] = (val2 >> reg.left_shift) & 1;
1939         ucontrol->value.integer.value[2] = (val1 >> reg.right_shift) & 1;
1940         ucontrol->value.integer.value[3] = (val2 >> reg.right_shift) & 1;
1941         return 0;
1942 }
1943
1944 static int snd_cmipci_put_input_sw(struct snd_kcontrol *kcontrol,
1945                                    struct snd_ctl_elem_value *ucontrol)
1946 {
1947         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
1948         struct cmipci_sb_reg reg;
1949         int change;
1950         int val1, val2, oval1, oval2;
1951
1952         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1953         spin_lock_irq(&cm->reg_lock);
1954         oval1 = snd_cmipci_mixer_read(cm, reg.left_reg);
1955         oval2 = snd_cmipci_mixer_read(cm, reg.right_reg);
1956         val1 = oval1 & ~((1 << reg.left_shift) | (1 << reg.right_shift));
1957         val2 = oval2 & ~((1 << reg.left_shift) | (1 << reg.right_shift));
1958         val1 |= (ucontrol->value.integer.value[0] & 1) << reg.left_shift;
1959         val2 |= (ucontrol->value.integer.value[1] & 1) << reg.left_shift;
1960         val1 |= (ucontrol->value.integer.value[2] & 1) << reg.right_shift;
1961         val2 |= (ucontrol->value.integer.value[3] & 1) << reg.right_shift;
1962         change = val1 != oval1 || val2 != oval2;
1963         snd_cmipci_mixer_write(cm, reg.left_reg, val1);
1964         snd_cmipci_mixer_write(cm, reg.right_reg, val2);
1965         spin_unlock_irq(&cm->reg_lock);
1966         return change;
1967 }
1968
1969 /*
1970  * native mixer switches/volumes
1971  */
1972
1973 #define CMIPCI_MIXER_SW_STEREO(xname, reg, lshift, rshift, invert) \
1974 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1975   .info = snd_cmipci_info_native_mixer, \
1976   .get = snd_cmipci_get_native_mixer, .put = snd_cmipci_put_native_mixer, \
1977   .private_value = COMPOSE_SB_REG(reg, reg, lshift, rshift, 1, invert, 1), \
1978 }
1979
1980 #define CMIPCI_MIXER_SW_MONO(xname, reg, shift, invert) \
1981 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1982   .info = snd_cmipci_info_native_mixer, \
1983   .get = snd_cmipci_get_native_mixer, .put = snd_cmipci_put_native_mixer, \
1984   .private_value = COMPOSE_SB_REG(reg, reg, shift, shift, 1, invert, 0), \
1985 }
1986
1987 #define CMIPCI_MIXER_VOL_STEREO(xname, reg, lshift, rshift, mask) \
1988 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1989   .info = snd_cmipci_info_native_mixer, \
1990   .get = snd_cmipci_get_native_mixer, .put = snd_cmipci_put_native_mixer, \
1991   .private_value = COMPOSE_SB_REG(reg, reg, lshift, rshift, mask, 0, 1), \
1992 }
1993
1994 #define CMIPCI_MIXER_VOL_MONO(xname, reg, shift, mask) \
1995 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1996   .info = snd_cmipci_info_native_mixer, \
1997   .get = snd_cmipci_get_native_mixer, .put = snd_cmipci_put_native_mixer, \
1998   .private_value = COMPOSE_SB_REG(reg, reg, shift, shift, mask, 0, 0), \
1999 }
2000
2001 static int snd_cmipci_info_native_mixer(struct snd_kcontrol *kcontrol,
2002                                         struct snd_ctl_elem_info *uinfo)
2003 {
2004         struct cmipci_sb_reg reg;
2005
2006         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
2007         uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
2008         uinfo->count = reg.stereo + 1;
2009         uinfo->value.integer.min = 0;
2010         uinfo->value.integer.max = reg.mask;
2011         return 0;
2012
2013 }
2014
2015 static int snd_cmipci_get_native_mixer(struct snd_kcontrol *kcontrol,
2016                                        struct snd_ctl_elem_value *ucontrol)
2017 {
2018         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2019         struct cmipci_sb_reg reg;
2020         unsigned char oreg, val;
2021
2022         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
2023         spin_lock_irq(&cm->reg_lock);
2024         oreg = inb(cm->iobase + reg.left_reg);
2025         val = (oreg >> reg.left_shift) & reg.mask;
2026         if (reg.invert)
2027                 val = reg.mask - val;
2028         ucontrol->value.integer.value[0] = val;
2029         if (reg.stereo) {
2030                 val = (oreg >> reg.right_shift) & reg.mask;
2031                 if (reg.invert)
2032                         val = reg.mask - val;
2033                 ucontrol->value.integer.value[1] = val;
2034         }
2035         spin_unlock_irq(&cm->reg_lock);
2036         return 0;
2037 }
2038
2039 static int snd_cmipci_put_native_mixer(struct snd_kcontrol *kcontrol,
2040                                        struct snd_ctl_elem_value *ucontrol)
2041 {
2042         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2043         struct cmipci_sb_reg reg;
2044         unsigned char oreg, nreg, 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 = ucontrol->value.integer.value[0] & reg.mask;
2050         if (reg.invert)
2051                 val = reg.mask - val;
2052         nreg = oreg & ~(reg.mask << reg.left_shift);
2053         nreg |= (val << reg.left_shift);
2054         if (reg.stereo) {
2055                 val = ucontrol->value.integer.value[1] & reg.mask;
2056                 if (reg.invert)
2057                         val = reg.mask - val;
2058                 nreg &= ~(reg.mask << reg.right_shift);
2059                 nreg |= (val << reg.right_shift);
2060         }
2061         outb(nreg, cm->iobase + reg.left_reg);
2062         spin_unlock_irq(&cm->reg_lock);
2063         return (nreg != oreg);
2064 }
2065
2066 /*
2067  * special case - check mixer sensitivity
2068  */
2069 static int snd_cmipci_get_native_mixer_sensitive(struct snd_kcontrol *kcontrol,
2070                                                  struct snd_ctl_elem_value *ucontrol)
2071 {
2072         //struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2073         return snd_cmipci_get_native_mixer(kcontrol, ucontrol);
2074 }
2075
2076 static int snd_cmipci_put_native_mixer_sensitive(struct snd_kcontrol *kcontrol,
2077                                                  struct snd_ctl_elem_value *ucontrol)
2078 {
2079         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2080         if (cm->mixer_insensitive) {
2081                 /* ignored */
2082                 return 0;
2083         }
2084         return snd_cmipci_put_native_mixer(kcontrol, ucontrol);
2085 }
2086
2087
2088 static struct snd_kcontrol_new snd_cmipci_mixers[] __devinitdata = {
2089         CMIPCI_SB_VOL_STEREO("Master Playback Volume", SB_DSP4_MASTER_DEV, 3, 31),
2090         CMIPCI_MIXER_SW_MONO("3D Control - Switch", CM_REG_MIXER1, CM_X3DEN_SHIFT, 0),
2091         CMIPCI_SB_VOL_STEREO("PCM Playback Volume", SB_DSP4_PCM_DEV, 3, 31),
2092         //CMIPCI_MIXER_SW_MONO("PCM Playback Switch", CM_REG_MIXER1, CM_WSMUTE_SHIFT, 1),
2093         { /* switch with sensitivity */
2094                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2095                 .name = "PCM Playback Switch",
2096                 .info = snd_cmipci_info_native_mixer,
2097                 .get = snd_cmipci_get_native_mixer_sensitive,
2098                 .put = snd_cmipci_put_native_mixer_sensitive,
2099                 .private_value = COMPOSE_SB_REG(CM_REG_MIXER1, CM_REG_MIXER1, CM_WSMUTE_SHIFT, CM_WSMUTE_SHIFT, 1, 1, 0),
2100         },
2101         CMIPCI_MIXER_SW_STEREO("PCM Capture Switch", CM_REG_MIXER1, CM_WAVEINL_SHIFT, CM_WAVEINR_SHIFT, 0),
2102         CMIPCI_SB_VOL_STEREO("Synth Playback Volume", SB_DSP4_SYNTH_DEV, 3, 31),
2103         CMIPCI_MIXER_SW_MONO("Synth Playback Switch", CM_REG_MIXER1, CM_FMMUTE_SHIFT, 1),
2104         CMIPCI_SB_INPUT_SW("Synth Capture Route", 6, 5),
2105         CMIPCI_SB_VOL_STEREO("CD Playback Volume", SB_DSP4_CD_DEV, 3, 31),
2106         CMIPCI_SB_SW_STEREO("CD Playback Switch", 2, 1),
2107         CMIPCI_SB_INPUT_SW("CD Capture Route", 2, 1),
2108         CMIPCI_SB_VOL_STEREO("Line Playback Volume", SB_DSP4_LINE_DEV, 3, 31),
2109         CMIPCI_SB_SW_STEREO("Line Playback Switch", 4, 3),
2110         CMIPCI_SB_INPUT_SW("Line Capture Route", 4, 3),
2111         CMIPCI_SB_VOL_MONO("Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31),
2112         CMIPCI_SB_SW_MONO("Mic Playback Switch", 0),
2113         CMIPCI_DOUBLE("Mic Capture Switch", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 0, 0, 1, 0, 0),
2114         CMIPCI_SB_VOL_MONO("PC Speaker Playback Volume", SB_DSP4_SPEAKER_DEV, 6, 3),
2115         CMIPCI_MIXER_VOL_STEREO("Aux Playback Volume", CM_REG_AUX_VOL, 4, 0, 15),
2116         CMIPCI_MIXER_SW_STEREO("Aux Playback Switch", CM_REG_MIXER2, CM_VAUXLM_SHIFT, CM_VAUXRM_SHIFT, 0),
2117         CMIPCI_MIXER_SW_STEREO("Aux Capture Switch", CM_REG_MIXER2, CM_RAUXLEN_SHIFT, CM_RAUXREN_SHIFT, 0),
2118         CMIPCI_MIXER_SW_MONO("Mic Boost Playback Switch", CM_REG_MIXER2, CM_MICGAINZ_SHIFT, 1),
2119         CMIPCI_MIXER_VOL_MONO("Mic Capture Volume", CM_REG_MIXER2, CM_VADMIC_SHIFT, 7),
2120         CMIPCI_SB_VOL_MONO("Phone Playback Volume", CM_REG_EXTENT_IND, 5, 7),
2121         CMIPCI_DOUBLE("Phone Playback Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 4, 4, 1, 0, 0),
2122         CMIPCI_DOUBLE("PC Speaker Playback Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 3, 3, 1, 0, 0),
2123         CMIPCI_DOUBLE("Mic Boost Capture Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 0, 0, 1, 0, 0),
2124 };
2125
2126 /*
2127  * other switches
2128  */
2129
2130 struct cmipci_switch_args {
2131         int reg;                /* register index */
2132         unsigned int mask;      /* mask bits */
2133         unsigned int mask_on;   /* mask bits to turn on */
2134         unsigned int is_byte: 1;                /* byte access? */
2135         unsigned int ac3_sensitive: 1;  /* access forbidden during
2136                                          * non-audio operation?
2137                                          */
2138 };
2139
2140 #define snd_cmipci_uswitch_info         snd_ctl_boolean_mono_info
2141
2142 static int _snd_cmipci_uswitch_get(struct snd_kcontrol *kcontrol,
2143                                    struct snd_ctl_elem_value *ucontrol,
2144                                    struct cmipci_switch_args *args)
2145 {
2146         unsigned int val;
2147         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2148
2149         spin_lock_irq(&cm->reg_lock);
2150         if (args->ac3_sensitive && cm->mixer_insensitive) {
2151                 ucontrol->value.integer.value[0] = 0;
2152                 spin_unlock_irq(&cm->reg_lock);
2153                 return 0;
2154         }
2155         if (args->is_byte)
2156                 val = inb(cm->iobase + args->reg);
2157         else
2158                 val = snd_cmipci_read(cm, args->reg);
2159         ucontrol->value.integer.value[0] = ((val & args->mask) == args->mask_on) ? 1 : 0;
2160         spin_unlock_irq(&cm->reg_lock);
2161         return 0;
2162 }
2163
2164 static int snd_cmipci_uswitch_get(struct snd_kcontrol *kcontrol,
2165                                   struct snd_ctl_elem_value *ucontrol)
2166 {
2167         struct cmipci_switch_args *args;
2168         args = (struct cmipci_switch_args *)kcontrol->private_value;
2169         snd_assert(args != NULL, return -EINVAL);
2170         return _snd_cmipci_uswitch_get(kcontrol, ucontrol, args);
2171 }
2172
2173 static int _snd_cmipci_uswitch_put(struct snd_kcontrol *kcontrol,
2174                                    struct snd_ctl_elem_value *ucontrol,
2175                                    struct cmipci_switch_args *args)
2176 {
2177         unsigned int val;
2178         int change;
2179         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2180
2181         spin_lock_irq(&cm->reg_lock);
2182         if (args->ac3_sensitive && cm->mixer_insensitive) {
2183                 /* ignored */
2184                 spin_unlock_irq(&cm->reg_lock);
2185                 return 0;
2186         }
2187         if (args->is_byte)
2188                 val = inb(cm->iobase + args->reg);
2189         else
2190                 val = snd_cmipci_read(cm, args->reg);
2191         change = (val & args->mask) != (ucontrol->value.integer.value[0] ?
2192                         args->mask_on : (args->mask & ~args->mask_on));
2193         if (change) {
2194                 val &= ~args->mask;
2195                 if (ucontrol->value.integer.value[0])
2196                         val |= args->mask_on;
2197                 else
2198                         val |= (args->mask & ~args->mask_on);
2199                 if (args->is_byte)
2200                         outb((unsigned char)val, cm->iobase + args->reg);
2201                 else
2202                         snd_cmipci_write(cm, args->reg, val);
2203         }
2204         spin_unlock_irq(&cm->reg_lock);
2205         return change;
2206 }
2207
2208 static int snd_cmipci_uswitch_put(struct snd_kcontrol *kcontrol,
2209                                   struct snd_ctl_elem_value *ucontrol)
2210 {
2211         struct cmipci_switch_args *args;
2212         args = (struct cmipci_switch_args *)kcontrol->private_value;
2213         snd_assert(args != NULL, return -EINVAL);
2214         return _snd_cmipci_uswitch_put(kcontrol, ucontrol, args);
2215 }
2216
2217 #define DEFINE_SWITCH_ARG(sname, xreg, xmask, xmask_on, xis_byte, xac3) \
2218 static struct cmipci_switch_args cmipci_switch_arg_##sname = { \
2219   .reg = xreg, \
2220   .mask = xmask, \
2221   .mask_on = xmask_on, \
2222   .is_byte = xis_byte, \
2223   .ac3_sensitive = xac3, \
2224 }
2225
2226 #define DEFINE_BIT_SWITCH_ARG(sname, xreg, xmask, xis_byte, xac3) \
2227         DEFINE_SWITCH_ARG(sname, xreg, xmask, xmask, xis_byte, xac3)
2228
2229 #if 0 /* these will be controlled in pcm device */
2230 DEFINE_BIT_SWITCH_ARG(spdif_in, CM_REG_FUNCTRL1, CM_SPDF_1, 0, 0);
2231 DEFINE_BIT_SWITCH_ARG(spdif_out, CM_REG_FUNCTRL1, CM_SPDF_0, 0, 0);
2232 #endif
2233 DEFINE_BIT_SWITCH_ARG(spdif_in_sel1, CM_REG_CHFORMAT, CM_SPDIF_SELECT1, 0, 0);
2234 DEFINE_BIT_SWITCH_ARG(spdif_in_sel2, CM_REG_MISC_CTRL, CM_SPDIF_SELECT2, 0, 0);
2235 DEFINE_BIT_SWITCH_ARG(spdif_enable, CM_REG_LEGACY_CTRL, CM_ENSPDOUT, 0, 0);
2236 DEFINE_BIT_SWITCH_ARG(spdo2dac, CM_REG_FUNCTRL1, CM_SPDO2DAC, 0, 1);
2237 DEFINE_BIT_SWITCH_ARG(spdi_valid, CM_REG_MISC, CM_SPDVALID, 1, 0);
2238 DEFINE_BIT_SWITCH_ARG(spdif_copyright, CM_REG_LEGACY_CTRL, CM_SPDCOPYRHT, 0, 0);
2239 DEFINE_BIT_SWITCH_ARG(spdif_dac_out, CM_REG_LEGACY_CTRL, CM_DAC2SPDO, 0, 1);
2240 DEFINE_SWITCH_ARG(spdo_5v, CM_REG_MISC_CTRL, CM_SPDO5V, 0, 0, 0); /* inverse: 0 = 5V */
2241 // DEFINE_BIT_SWITCH_ARG(spdo_48k, CM_REG_MISC_CTRL, CM_SPDF_AC97|CM_SPDIF48K, 0, 1);
2242 DEFINE_BIT_SWITCH_ARG(spdif_loop, CM_REG_FUNCTRL1, CM_SPDFLOOP, 0, 1);
2243 DEFINE_BIT_SWITCH_ARG(spdi_monitor, CM_REG_MIXER1, CM_CDPLAY, 1, 0);
2244 /* DEFINE_BIT_SWITCH_ARG(spdi_phase, CM_REG_CHFORMAT, CM_SPDIF_INVERSE, 0, 0); */
2245 DEFINE_BIT_SWITCH_ARG(spdi_phase, CM_REG_MISC, CM_SPDIF_INVERSE, 1, 0);
2246 DEFINE_BIT_SWITCH_ARG(spdi_phase2, CM_REG_CHFORMAT, CM_SPDIF_INVERSE2, 0, 0);
2247 #if CM_CH_PLAY == 1
2248 DEFINE_SWITCH_ARG(exchange_dac, CM_REG_MISC_CTRL, CM_XCHGDAC, 0, 0, 0); /* reversed */
2249 #else
2250 DEFINE_SWITCH_ARG(exchange_dac, CM_REG_MISC_CTRL, CM_XCHGDAC, CM_XCHGDAC, 0, 0);
2251 #endif
2252 DEFINE_BIT_SWITCH_ARG(fourch, CM_REG_MISC_CTRL, CM_N4SPK3D, 0, 0);
2253 // DEFINE_BIT_SWITCH_ARG(line_rear, CM_REG_MIXER1, CM_SPK4, 1, 0);
2254 // DEFINE_BIT_SWITCH_ARG(line_bass, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS, 0, 0);
2255 // DEFINE_BIT_SWITCH_ARG(joystick, CM_REG_FUNCTRL1, CM_JYSTK_EN, 0, 0); /* now module option */
2256 DEFINE_SWITCH_ARG(modem, CM_REG_MISC_CTRL, CM_FLINKON|CM_FLINKOFF, CM_FLINKON, 0, 0);
2257
2258 #define DEFINE_SWITCH(sname, stype, sarg) \
2259 { .name = sname, \
2260   .iface = stype, \
2261   .info = snd_cmipci_uswitch_info, \
2262   .get = snd_cmipci_uswitch_get, \
2263   .put = snd_cmipci_uswitch_put, \
2264   .private_value = (unsigned long)&cmipci_switch_arg_##sarg,\
2265 }
2266
2267 #define DEFINE_CARD_SWITCH(sname, sarg) DEFINE_SWITCH(sname, SNDRV_CTL_ELEM_IFACE_CARD, sarg)
2268 #define DEFINE_MIXER_SWITCH(sname, sarg) DEFINE_SWITCH(sname, SNDRV_CTL_ELEM_IFACE_MIXER, sarg)
2269
2270
2271 /*
2272  * callbacks for spdif output switch
2273  * needs toggle two registers..
2274  */
2275 static int snd_cmipci_spdout_enable_get(struct snd_kcontrol *kcontrol,
2276                                         struct snd_ctl_elem_value *ucontrol)
2277 {
2278         int changed;
2279         changed = _snd_cmipci_uswitch_get(kcontrol, ucontrol, &cmipci_switch_arg_spdif_enable);
2280         changed |= _snd_cmipci_uswitch_get(kcontrol, ucontrol, &cmipci_switch_arg_spdo2dac);
2281         return changed;
2282 }
2283
2284 static int snd_cmipci_spdout_enable_put(struct snd_kcontrol *kcontrol,
2285                                         struct snd_ctl_elem_value *ucontrol)
2286 {
2287         struct cmipci *chip = snd_kcontrol_chip(kcontrol);
2288         int changed;
2289         changed = _snd_cmipci_uswitch_put(kcontrol, ucontrol, &cmipci_switch_arg_spdif_enable);
2290         changed |= _snd_cmipci_uswitch_put(kcontrol, ucontrol, &cmipci_switch_arg_spdo2dac);
2291         if (changed) {
2292                 if (ucontrol->value.integer.value[0]) {
2293                         if (chip->spdif_playback_avail)
2294                                 snd_cmipci_set_bit(chip, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
2295                 } else {
2296                         if (chip->spdif_playback_avail)
2297                                 snd_cmipci_clear_bit(chip, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
2298                 }
2299         }
2300         chip->spdif_playback_enabled = ucontrol->value.integer.value[0];
2301         return changed;
2302 }
2303
2304
2305 static int snd_cmipci_line_in_mode_info(struct snd_kcontrol *kcontrol,
2306                                         struct snd_ctl_elem_info *uinfo)
2307 {
2308         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2309         static char *texts[3] = { "Line-In", "Rear Output", "Bass Output" };
2310         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2311         uinfo->count = 1;
2312         uinfo->value.enumerated.items = cm->chip_version >= 39 ? 3 : 2;
2313         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2314                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2315         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2316         return 0;
2317 }
2318
2319 static inline unsigned int get_line_in_mode(struct cmipci *cm)
2320 {
2321         unsigned int val;
2322         if (cm->chip_version >= 39) {
2323                 val = snd_cmipci_read(cm, CM_REG_LEGACY_CTRL);
2324                 if (val & CM_LINE_AS_BASS)
2325                         return 2;
2326         }
2327         val = snd_cmipci_read_b(cm, CM_REG_MIXER1);
2328         if (val & CM_SPK4)
2329                 return 1;
2330         return 0;
2331 }
2332
2333 static int snd_cmipci_line_in_mode_get(struct snd_kcontrol *kcontrol,
2334                                        struct snd_ctl_elem_value *ucontrol)
2335 {
2336         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2337
2338         spin_lock_irq(&cm->reg_lock);
2339         ucontrol->value.enumerated.item[0] = get_line_in_mode(cm);
2340         spin_unlock_irq(&cm->reg_lock);
2341         return 0;
2342 }
2343
2344 static int snd_cmipci_line_in_mode_put(struct snd_kcontrol *kcontrol,
2345                                        struct snd_ctl_elem_value *ucontrol)
2346 {
2347         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2348         int change;
2349
2350         spin_lock_irq(&cm->reg_lock);
2351         if (ucontrol->value.enumerated.item[0] == 2)
2352                 change = snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS);
2353         else
2354                 change = snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS);
2355         if (ucontrol->value.enumerated.item[0] == 1)
2356                 change |= snd_cmipci_set_bit_b(cm, CM_REG_MIXER1, CM_SPK4);
2357         else
2358                 change |= snd_cmipci_clear_bit_b(cm, CM_REG_MIXER1, CM_SPK4);
2359         spin_unlock_irq(&cm->reg_lock);
2360         return change;
2361 }
2362
2363 static int snd_cmipci_mic_in_mode_info(struct snd_kcontrol *kcontrol,
2364                                        struct snd_ctl_elem_info *uinfo)
2365 {
2366         static char *texts[2] = { "Mic-In", "Center/LFE Output" };
2367         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2368         uinfo->count = 1;
2369         uinfo->value.enumerated.items = 2;
2370         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2371                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2372         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2373         return 0;
2374 }
2375
2376 static int snd_cmipci_mic_in_mode_get(struct snd_kcontrol *kcontrol,
2377                                       struct snd_ctl_elem_value *ucontrol)
2378 {
2379         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2380         /* same bit as spdi_phase */
2381         spin_lock_irq(&cm->reg_lock);
2382         ucontrol->value.enumerated.item[0] =
2383                 (snd_cmipci_read_b(cm, CM_REG_MISC) & CM_SPDIF_INVERSE) ? 1 : 0;
2384         spin_unlock_irq(&cm->reg_lock);
2385         return 0;
2386 }
2387
2388 static int snd_cmipci_mic_in_mode_put(struct snd_kcontrol *kcontrol,
2389                                       struct snd_ctl_elem_value *ucontrol)
2390 {
2391         struct cmipci *cm = snd_kcontrol_chip(kcontrol);
2392         int change;
2393
2394         spin_lock_irq(&cm->reg_lock);
2395         if (ucontrol->value.enumerated.item[0])
2396                 change = snd_cmipci_set_bit_b(cm, CM_REG_MISC, CM_SPDIF_INVERSE);
2397         else
2398                 change = snd_cmipci_clear_bit_b(cm, CM_REG_MISC, CM_SPDIF_INVERSE);
2399         spin_unlock_irq(&cm->reg_lock);
2400         return change;
2401 }
2402
2403 /* both for CM8338/8738 */
2404 static struct snd_kcontrol_new snd_cmipci_mixer_switches[] __devinitdata = {
2405         DEFINE_MIXER_SWITCH("Four Channel Mode", fourch),
2406         {
2407                 .name = "Line-In Mode",
2408                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2409                 .info = snd_cmipci_line_in_mode_info,
2410                 .get = snd_cmipci_line_in_mode_get,
2411                 .put = snd_cmipci_line_in_mode_put,
2412         },
2413 };
2414
2415 /* for non-multichannel chips */
2416 static struct snd_kcontrol_new snd_cmipci_nomulti_switch __devinitdata =
2417 DEFINE_MIXER_SWITCH("Exchange DAC", exchange_dac);
2418
2419 /* only for CM8738 */
2420 static struct snd_kcontrol_new snd_cmipci_8738_mixer_switches[] __devinitdata = {
2421 #if 0 /* controlled in pcm device */
2422         DEFINE_MIXER_SWITCH("IEC958 In Record", spdif_in),
2423         DEFINE_MIXER_SWITCH("IEC958 Out", spdif_out),
2424         DEFINE_MIXER_SWITCH("IEC958 Out To DAC", spdo2dac),
2425 #endif
2426         // DEFINE_MIXER_SWITCH("IEC958 Output Switch", spdif_enable),
2427         { .name = "IEC958 Output Switch",
2428           .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2429           .info = snd_cmipci_uswitch_info,
2430           .get = snd_cmipci_spdout_enable_get,
2431           .put = snd_cmipci_spdout_enable_put,
2432         },
2433         DEFINE_MIXER_SWITCH("IEC958 In Valid", spdi_valid),
2434         DEFINE_MIXER_SWITCH("IEC958 Copyright", spdif_copyright),
2435         DEFINE_MIXER_SWITCH("IEC958 5V", spdo_5v),
2436 //      DEFINE_MIXER_SWITCH("IEC958 In/Out 48KHz", spdo_48k),
2437         DEFINE_MIXER_SWITCH("IEC958 Loop", spdif_loop),
2438         DEFINE_MIXER_SWITCH("IEC958 In Monitor", spdi_monitor),
2439 };
2440
2441 /* only for model 033/037 */
2442 static struct snd_kcontrol_new snd_cmipci_old_mixer_switches[] __devinitdata = {
2443         DEFINE_MIXER_SWITCH("IEC958 Mix Analog", spdif_dac_out),
2444         DEFINE_MIXER_SWITCH("IEC958 In Phase Inverse", spdi_phase),
2445         DEFINE_MIXER_SWITCH("IEC958 In Select", spdif_in_sel1),
2446 };
2447
2448 /* only for model 039 or later */
2449 static struct snd_kcontrol_new snd_cmipci_extra_mixer_switches[] __devinitdata = {
2450         DEFINE_MIXER_SWITCH("IEC958 In Select", spdif_in_sel2),
2451         DEFINE_MIXER_SWITCH("IEC958 In Phase Inverse", spdi_phase2),
2452         {
2453                 .name = "Mic-In Mode",
2454                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2455                 .info = snd_cmipci_mic_in_mode_info,
2456                 .get = snd_cmipci_mic_in_mode_get,
2457                 .put = snd_cmipci_mic_in_mode_put,
2458         }
2459 };
2460
2461 /* card control switches */
2462 static struct snd_kcontrol_new snd_cmipci_control_switches[] __devinitdata = {
2463         // DEFINE_CARD_SWITCH("Joystick", joystick), /* now module option */
2464         DEFINE_CARD_SWITCH("Modem", modem),
2465 };
2466
2467
2468 static int __devinit snd_cmipci_mixer_new(struct cmipci *cm, int pcm_spdif_device)
2469 {
2470         struct snd_card *card;
2471         struct snd_kcontrol_new *sw;
2472         struct snd_kcontrol *kctl;
2473         unsigned int idx;
2474         int err;
2475
2476         snd_assert(cm != NULL && cm->card != NULL, return -EINVAL);
2477
2478         card = cm->card;
2479
2480         strcpy(card->mixername, "CMedia PCI");
2481
2482         spin_lock_irq(&cm->reg_lock);
2483         snd_cmipci_mixer_write(cm, 0x00, 0x00);         /* mixer reset */
2484         spin_unlock_irq(&cm->reg_lock);
2485
2486         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_mixers); idx++) {
2487                 if (cm->chip_version == 68) {   // 8768 has no PCM volume
2488                         if (!strcmp(snd_cmipci_mixers[idx].name,
2489                                 "PCM Playback Volume"))
2490                                 continue;
2491                 }
2492                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cmipci_mixers[idx], cm))) < 0)
2493                         return err;
2494         }
2495
2496         /* mixer switches */
2497         sw = snd_cmipci_mixer_switches;
2498         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_mixer_switches); idx++, sw++) {
2499                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2500                 if (err < 0)
2501                         return err;
2502         }
2503         if (! cm->can_multi_ch) {
2504                 err = snd_ctl_add(cm->card, snd_ctl_new1(&snd_cmipci_nomulti_switch, cm));
2505                 if (err < 0)
2506                         return err;
2507         }
2508         if (cm->device == PCI_DEVICE_ID_CMEDIA_CM8738 ||
2509             cm->device == PCI_DEVICE_ID_CMEDIA_CM8738B) {
2510                 sw = snd_cmipci_8738_mixer_switches;
2511                 for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_8738_mixer_switches); idx++, sw++) {
2512                         err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2513                         if (err < 0)
2514                                 return err;
2515                 }
2516                 if (cm->can_ac3_hw) {
2517                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_default, cm))) < 0)
2518                                 return err;
2519                         kctl->id.device = pcm_spdif_device;
2520                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_mask, cm))) < 0)
2521                                 return err;
2522                         kctl->id.device = pcm_spdif_device;
2523                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_stream, cm))) < 0)
2524                                 return err;
2525                         kctl->id.device = pcm_spdif_device;
2526                 }
2527                 if (cm->chip_version <= 37) {
2528                         sw = snd_cmipci_old_mixer_switches;
2529                         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_old_mixer_switches); idx++, sw++) {
2530                                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2531                                 if (err < 0)
2532                                         return err;
2533                         }
2534                 }
2535         }
2536         if (cm->chip_version >= 39) {
2537                 sw = snd_cmipci_extra_mixer_switches;
2538                 for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_extra_mixer_switches); idx++, sw++) {
2539                         err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2540                         if (err < 0)
2541                                 return err;
2542                 }
2543         }
2544
2545         /* card switches */
2546         sw = snd_cmipci_control_switches;
2547         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_control_switches); idx++, sw++) {
2548                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2549                 if (err < 0)
2550                         return err;
2551         }
2552
2553         for (idx = 0; idx < CM_SAVED_MIXERS; idx++) {
2554                 struct snd_ctl_elem_id id;
2555                 struct snd_kcontrol *ctl;
2556                 memset(&id, 0, sizeof(id));
2557                 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2558                 strcpy(id.name, cm_saved_mixer[idx].name);
2559                 if ((ctl = snd_ctl_find_id(cm->card, &id)) != NULL)
2560                         cm->mixer_res_ctl[idx] = ctl;
2561         }
2562
2563         return 0;
2564 }
2565
2566
2567 /*
2568  * proc interface
2569  */
2570
2571 #ifdef CONFIG_PROC_FS
2572 static void snd_cmipci_proc_read(struct snd_info_entry *entry,
2573                                  struct snd_info_buffer *buffer)
2574 {
2575         struct cmipci *cm = entry->private_data;
2576         int i;
2577
2578         snd_iprintf(buffer, "%s\n\n", cm->card->longname);
2579         for (i = 0; i < 0x40; i++) {
2580                 int v = inb(cm->iobase + i);
2581                 if (i % 4 == 0)
2582                         snd_iprintf(buffer, "%02x: ", i);
2583                 snd_iprintf(buffer, "%02x", v);
2584                 if (i % 4 == 3)
2585                         snd_iprintf(buffer, "\n");
2586                 else
2587                         snd_iprintf(buffer, " ");
2588         }
2589 }
2590
2591 static void __devinit snd_cmipci_proc_init(struct cmipci *cm)
2592 {
2593         struct snd_info_entry *entry;
2594
2595         if (! snd_card_proc_new(cm->card, "cmipci", &entry))
2596                 snd_info_set_text_ops(entry, cm, snd_cmipci_proc_read);
2597 }
2598 #else /* !CONFIG_PROC_FS */
2599 static inline void snd_cmipci_proc_init(struct cmipci *cm) {}
2600 #endif
2601
2602
2603 static struct pci_device_id snd_cmipci_ids[] = {
2604         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2605         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2606         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2607         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2608         {PCI_VENDOR_ID_AL, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2609         {0,},
2610 };
2611
2612
2613 /*
2614  * check chip version and capabilities
2615  * driver name is modified according to the chip model
2616  */
2617 static void __devinit query_chip(struct cmipci *cm)
2618 {
2619         unsigned int detect;
2620
2621         /* check reg 0Ch, bit 24-31 */
2622         detect = snd_cmipci_read(cm, CM_REG_INT_HLDCLR) & CM_CHIP_MASK2;
2623         if (! detect) {
2624                 /* check reg 08h, bit 24-28 */
2625                 detect = snd_cmipci_read(cm, CM_REG_CHFORMAT) & CM_CHIP_MASK1;
2626                 switch (detect) {
2627                 case 0:
2628                         cm->chip_version = 33;
2629                         if (cm->do_soft_ac3)
2630                                 cm->can_ac3_sw = 1;
2631                         else
2632                                 cm->can_ac3_hw = 1;
2633                         break;
2634                 case 1:
2635                         cm->chip_version = 37;
2636                         cm->can_ac3_hw = 1;
2637                         break;
2638                 default:
2639                         cm->chip_version = 39;
2640                         cm->can_ac3_hw = 1;
2641                         break;
2642                 }
2643                 cm->max_channels = 2;
2644         } else {
2645                 if (detect & CM_CHIP_039) {
2646                         cm->chip_version = 39;
2647                         if (detect & CM_CHIP_039_6CH) /* 4 or 6 channels */
2648                                 cm->max_channels = 6;
2649                         else
2650                                 cm->max_channels = 4;
2651                 } else if (detect & CM_CHIP_8768) {
2652                         cm->chip_version = 68;
2653                         cm->max_channels = 8;
2654                 } else {
2655                         cm->chip_version = 55;
2656                         cm->max_channels = 6;
2657                 }
2658                 cm->can_ac3_hw = 1;
2659                 cm->can_multi_ch = 1;
2660         }
2661 }
2662
2663 #ifdef SUPPORT_JOYSTICK
2664 static int __devinit snd_cmipci_create_gameport(struct cmipci *cm, int dev)
2665 {
2666         static int ports[] = { 0x201, 0x200, 0 }; /* FIXME: majority is 0x201? */
2667         struct gameport *gp;
2668         struct resource *r = NULL;
2669         int i, io_port = 0;
2670
2671         if (joystick_port[dev] == 0)
2672                 return -ENODEV;
2673
2674         if (joystick_port[dev] == 1) { /* auto-detect */
2675                 for (i = 0; ports[i]; i++) {
2676                         io_port = ports[i];
2677                         r = request_region(io_port, 1, "CMIPCI gameport");
2678                         if (r)
2679                                 break;
2680                 }
2681         } else {
2682                 io_port = joystick_port[dev];
2683                 r = request_region(io_port, 1, "CMIPCI gameport");
2684         }
2685
2686         if (!r) {
2687                 printk(KERN_WARNING "cmipci: cannot reserve joystick ports\n");
2688                 return -EBUSY;
2689         }
2690
2691         cm->gameport = gp = gameport_allocate_port();
2692         if (!gp) {
2693                 printk(KERN_ERR "cmipci: cannot allocate memory for gameport\n");
2694                 release_and_free_resource(r);
2695                 return -ENOMEM;
2696         }
2697         gameport_set_name(gp, "C-Media Gameport");
2698         gameport_set_phys(gp, "pci%s/gameport0", pci_name(cm->pci));
2699         gameport_set_dev_parent(gp, &cm->pci->dev);
2700         gp->io = io_port;
2701         gameport_set_port_data(gp, r);
2702
2703         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
2704
2705         gameport_register_port(cm->gameport);
2706
2707         return 0;
2708 }
2709
2710 static void snd_cmipci_free_gameport(struct cmipci *cm)
2711 {
2712         if (cm->gameport) {
2713                 struct resource *r = gameport_get_port_data(cm->gameport);
2714
2715                 gameport_unregister_port(cm->gameport);
2716                 cm->gameport = NULL;
2717
2718                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
2719                 release_and_free_resource(r);
2720         }
2721 }
2722 #else
2723 static inline int snd_cmipci_create_gameport(struct cmipci *cm, int dev) { return -ENOSYS; }
2724 static inline void snd_cmipci_free_gameport(struct cmipci *cm) { }
2725 #endif
2726
2727 static int snd_cmipci_free(struct cmipci *cm)
2728 {
2729         if (cm->irq >= 0) {
2730                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2731                 snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT);
2732                 snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0);  /* disable ints */
2733                 snd_cmipci_ch_reset(cm, CM_CH_PLAY);
2734                 snd_cmipci_ch_reset(cm, CM_CH_CAPT);
2735                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, 0); /* disable channels */
2736                 snd_cmipci_write(cm, CM_REG_FUNCTRL1, 0);
2737
2738                 /* reset mixer */
2739                 snd_cmipci_mixer_write(cm, 0, 0);
2740
2741                 synchronize_irq(cm->irq);
2742
2743                 free_irq(cm->irq, cm);
2744         }
2745
2746         snd_cmipci_free_gameport(cm);
2747         pci_release_regions(cm->pci);
2748         pci_disable_device(cm->pci);
2749         kfree(cm);
2750         return 0;
2751 }
2752
2753 static int snd_cmipci_dev_free(struct snd_device *device)
2754 {
2755         struct cmipci *cm = device->device_data;
2756         return snd_cmipci_free(cm);
2757 }
2758
2759 static int __devinit snd_cmipci_create_fm(struct cmipci *cm, long fm_port)
2760 {
2761         long iosynth;
2762         unsigned int val;
2763         struct snd_opl3 *opl3;
2764         int err;
2765
2766         if (!fm_port)
2767                 goto disable_fm;
2768
2769         if (cm->chip_version > 33) {
2770                 /* first try FM regs in PCI port range */
2771                 iosynth = cm->iobase + CM_REG_FM_PCI;
2772                 err = snd_opl3_create(cm->card, iosynth, iosynth + 2,
2773                                       OPL3_HW_OPL3, 1, &opl3);
2774         } else {
2775                 err = -EIO;
2776         }
2777         if (err < 0) {
2778                 /* then try legacy ports */
2779                 val = snd_cmipci_read(cm, CM_REG_LEGACY_CTRL) & ~CM_FMSEL_MASK;
2780                 iosynth = fm_port;
2781                 switch (iosynth) {
2782                 case 0x3E8: val |= CM_FMSEL_3E8; break;
2783                 case 0x3E0: val |= CM_FMSEL_3E0; break;
2784                 case 0x3C8: val |= CM_FMSEL_3C8; break;
2785                 case 0x388: val |= CM_FMSEL_388; break;
2786                 default:
2787                         goto disable_fm;
2788                 }
2789                 snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
2790                 /* enable FM */
2791                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2792
2793                 if (snd_opl3_create(cm->card, iosynth, iosynth + 2,
2794                                     OPL3_HW_OPL3, 0, &opl3) < 0) {
2795                         printk(KERN_ERR "cmipci: no OPL device at %#lx, "
2796                                "skipping...\n", iosynth);
2797                         goto disable_fm;
2798                 }
2799         }
2800         if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
2801                 printk(KERN_ERR "cmipci: cannot create OPL3 hwdep\n");
2802                 return err;
2803         }
2804         return 0;
2805
2806  disable_fm:
2807         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_FMSEL_MASK);
2808         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2809         return 0;
2810 }
2811
2812 static int __devinit snd_cmipci_create(struct snd_card *card, struct pci_dev *pci,
2813                                        int dev, struct cmipci **rcmipci)
2814 {
2815         struct cmipci *cm;
2816         int err;
2817         static struct snd_device_ops ops = {
2818                 .dev_free =     snd_cmipci_dev_free,
2819         };
2820         unsigned int val;
2821         long iomidi;
2822         int integrated_midi = 0;
2823         int pcm_index, pcm_spdif_index;
2824         static struct pci_device_id intel_82437vx[] = {
2825                 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX) },
2826                 { },
2827         };
2828
2829         *rcmipci = NULL;
2830
2831         if ((err = pci_enable_device(pci)) < 0)
2832                 return err;
2833
2834         cm = kzalloc(sizeof(*cm), GFP_KERNEL);
2835         if (cm == NULL) {
2836                 pci_disable_device(pci);
2837                 return -ENOMEM;
2838         }
2839
2840         spin_lock_init(&cm->reg_lock);
2841         mutex_init(&cm->open_mutex);
2842         cm->device = pci->device;
2843         cm->card = card;
2844         cm->pci = pci;
2845         cm->irq = -1;
2846         cm->channel[0].ch = 0;
2847         cm->channel[1].ch = 1;
2848         cm->channel[0].is_dac = cm->channel[1].is_dac = 1; /* dual DAC mode */
2849
2850         if ((err = pci_request_regions(pci, card->driver)) < 0) {
2851                 kfree(cm);
2852                 pci_disable_device(pci);
2853                 return err;
2854         }
2855         cm->iobase = pci_resource_start(pci, 0);
2856
2857         if (request_irq(pci->irq, snd_cmipci_interrupt,
2858                         IRQF_SHARED, card->driver, cm)) {
2859                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2860                 snd_cmipci_free(cm);
2861                 return -EBUSY;
2862         }
2863         cm->irq = pci->irq;
2864
2865         pci_set_master(cm->pci);
2866
2867         /*
2868          * check chip version, max channels and capabilities
2869          */
2870
2871         cm->chip_version = 0;
2872         cm->max_channels = 2;
2873         cm->do_soft_ac3 = soft_ac3[dev];
2874
2875         if (pci->device != PCI_DEVICE_ID_CMEDIA_CM8338A &&
2876             pci->device != PCI_DEVICE_ID_CMEDIA_CM8338B)
2877                 query_chip(cm);
2878         /* added -MCx suffix for chip supporting multi-channels */
2879         if (cm->can_multi_ch)
2880                 sprintf(cm->card->driver + strlen(cm->card->driver),
2881                         "-MC%d", cm->max_channels);
2882         else if (cm->can_ac3_sw)
2883                 strcpy(cm->card->driver + strlen(cm->card->driver), "-SWIEC");
2884
2885         cm->dig_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
2886         cm->dig_pcm_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
2887
2888 #if CM_CH_PLAY == 1
2889         cm->ctrl = CM_CHADC0;   /* default FUNCNTRL0 */
2890 #else
2891         cm->ctrl = CM_CHADC1;   /* default FUNCNTRL0 */
2892 #endif
2893
2894         /* initialize codec registers */
2895         snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0);     /* disable ints */
2896         snd_cmipci_ch_reset(cm, CM_CH_PLAY);
2897         snd_cmipci_ch_reset(cm, CM_CH_CAPT);
2898         snd_cmipci_write(cm, CM_REG_FUNCTRL0, 0);       /* disable channels */
2899         snd_cmipci_write(cm, CM_REG_FUNCTRL1, 0);
2900
2901         snd_cmipci_write(cm, CM_REG_CHFORMAT, 0);
2902         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC|CM_N4SPK3D);
2903 #if CM_CH_PLAY == 1
2904         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
2905 #else
2906         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
2907 #endif
2908         /* Set Bus Master Request */
2909         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_BREQ);
2910
2911         /* Assume TX and compatible chip set (Autodetection required for VX chip sets) */
2912         switch (pci->device) {
2913         case PCI_DEVICE_ID_CMEDIA_CM8738:
2914         case PCI_DEVICE_ID_CMEDIA_CM8738B:
2915                 if (!pci_dev_present(intel_82437vx))
2916                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_TXVX);
2917                 break;
2918         default:
2919                 break;
2920         }
2921
2922         sprintf(card->shortname, "C-Media %s", card->driver);
2923         if (cm->chip_version < 68) {
2924                 val = pci->device < 0x110 ? 8338 : 8738;
2925                 sprintf(card->longname,
2926                         "C-Media CMI%d (model %d) at 0x%lx, irq %i",
2927                         val, cm->chip_version, cm->iobase, cm->irq);
2928         } else {
2929                 switch (snd_cmipci_read_b(cm, CM_REG_INT_HLDCLR + 3) & 0x03) {
2930                 case 0:
2931                         val = 8769;
2932                         break;
2933                 case 2:
2934                         val = 8762;
2935                         break;
2936                 default:
2937                         switch ((pci->subsystem_vendor << 16) |
2938                                 pci->subsystem_device) {
2939                         case 0x13f69761:
2940                         case 0x584d3741:
2941                         case 0x584d3751:
2942                         case 0x584d3761:
2943                         case 0x584d3771:
2944                         case 0x72848384:
2945                                 val = 8770;
2946                                 break;
2947                         default:
2948                                 val = 8768;
2949                                 break;
2950                         }
2951                 }
2952                 sprintf(card->longname, "C-Media CMI%d at 0x%lx, irq %i",
2953                         val, cm->iobase, cm->irq);
2954         }
2955
2956         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, cm, &ops)) < 0) {
2957                 snd_cmipci_free(cm);
2958                 return err;
2959         }
2960
2961         val = 0;
2962         if (cm->chip_version > 33 && mpu_port[dev] == 1) {
2963                 val = snd_cmipci_read_b(cm, CM_REG_MPU_PCI + 1);
2964                 if (val != 0x00 && val != 0xff) {
2965                         iomidi = cm->iobase + CM_REG_MPU_PCI;
2966                         integrated_midi = 1;
2967                 }
2968         }
2969         if (!integrated_midi) {
2970                 iomidi = mpu_port[dev];
2971                 switch (iomidi) {
2972                 case 0x320: val = CM_VMPU_320; break;
2973                 case 0x310: val = CM_VMPU_310; break;
2974                 case 0x300: val = CM_VMPU_300; break;
2975                 case 0x330: val = CM_VMPU_330; break;
2976                 default:
2977                             iomidi = 0; break;
2978                 }
2979                 if (iomidi > 0) {
2980                         snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
2981                         /* enable UART */
2982                         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_UART_EN);
2983                 }
2984         }
2985
2986         if (cm->chip_version < 68) {
2987                 err = snd_cmipci_create_fm(cm, fm_port[dev]);
2988                 if (err < 0)
2989                         return err;
2990         }
2991
2992         /* reset mixer */
2993         snd_cmipci_mixer_write(cm, 0, 0);
2994
2995         snd_cmipci_proc_init(cm);
2996
2997         /* create pcm devices */
2998         pcm_index = pcm_spdif_index = 0;
2999         if ((err = snd_cmipci_pcm_new(cm, pcm_index)) < 0)
3000                 return err;
3001         pcm_index++;
3002         if ((err = snd_cmipci_pcm2_new(cm, pcm_index)) < 0)
3003                 return err;
3004         pcm_index++;
3005         if (cm->can_ac3_hw || cm->can_ac3_sw) {
3006                 pcm_spdif_index = pcm_index;
3007                 if ((err = snd_cmipci_pcm_spdif_new(cm, pcm_index)) < 0)
3008                         return err;
3009         }
3010
3011         /* create mixer interface & switches */
3012         if ((err = snd_cmipci_mixer_new(cm, pcm_spdif_index)) < 0)
3013                 return err;
3014
3015         if (iomidi > 0) {
3016                 if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI,
3017                                                iomidi,
3018                                                (integrated_midi ?
3019                                                 MPU401_INFO_INTEGRATED : 0),
3020                                                cm->irq, 0, &cm->rmidi)) < 0) {
3021                         printk(KERN_ERR "cmipci: no UART401 device at 0x%lx\n", iomidi);
3022                 }
3023         }
3024
3025 #ifdef USE_VAR48KRATE
3026         for (val = 0; val < ARRAY_SIZE(rates); val++)
3027                 snd_cmipci_set_pll(cm, rates[val], val);
3028
3029         /*
3030          * (Re-)Enable external switch spdo_48k
3031          */
3032         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K|CM_SPDF_AC97);
3033 #endif /* USE_VAR48KRATE */
3034
3035         if (snd_cmipci_create_gameport(cm, dev) < 0)
3036                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
3037
3038         snd_card_set_dev(card, &pci->dev);
3039
3040         *rcmipci = cm;
3041         return 0;
3042 }
3043
3044 /*
3045  */
3046
3047 MODULE_DEVICE_TABLE(pci, snd_cmipci_ids);
3048
3049 static int __devinit snd_cmipci_probe(struct pci_dev *pci,
3050                                       const struct pci_device_id *pci_id)
3051 {
3052         static int dev;
3053         struct snd_card *card;
3054         struct cmipci *cm;
3055         int err;
3056
3057         if (dev >= SNDRV_CARDS)
3058                 return -ENODEV;
3059         if (! enable[dev]) {
3060                 dev++;
3061                 return -ENOENT;
3062         }
3063
3064         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
3065         if (card == NULL)
3066                 return -ENOMEM;
3067
3068         switch (pci->device) {
3069         case PCI_DEVICE_ID_CMEDIA_CM8738:
3070         case PCI_DEVICE_ID_CMEDIA_CM8738B:
3071                 strcpy(card->driver, "CMI8738");
3072                 break;
3073         case PCI_DEVICE_ID_CMEDIA_CM8338A:
3074         case PCI_DEVICE_ID_CMEDIA_CM8338B:
3075                 strcpy(card->driver, "CMI8338");
3076                 break;
3077         default:
3078                 strcpy(card->driver, "CMIPCI");
3079                 break;
3080         }
3081
3082         if ((err = snd_cmipci_create(card, pci, dev, &cm)) < 0) {
3083                 snd_card_free(card);
3084                 return err;
3085         }
3086         card->private_data = cm;
3087
3088         if ((err = snd_card_register(card)) < 0) {
3089                 snd_card_free(card);
3090                 return err;
3091         }
3092         pci_set_drvdata(pci, card);
3093         dev++;
3094         return 0;
3095
3096 }
3097
3098 static void __devexit snd_cmipci_remove(struct pci_dev *pci)
3099 {
3100         snd_card_free(pci_get_drvdata(pci));
3101         pci_set_drvdata(pci, NULL);
3102 }
3103
3104
3105 #ifdef CONFIG_PM
3106 /*
3107  * power management
3108  */
3109 static unsigned char saved_regs[] = {
3110         CM_REG_FUNCTRL1, CM_REG_CHFORMAT, CM_REG_LEGACY_CTRL, CM_REG_MISC_CTRL,
3111         CM_REG_MIXER0, CM_REG_MIXER1, CM_REG_MIXER2, CM_REG_MIXER3, CM_REG_PLL,
3112         CM_REG_CH0_FRAME1, CM_REG_CH0_FRAME2,
3113         CM_REG_CH1_FRAME1, CM_REG_CH1_FRAME2, CM_REG_EXT_MISC,
3114         CM_REG_INT_STATUS, CM_REG_INT_HLDCLR, CM_REG_FUNCTRL0,
3115 };
3116
3117 static unsigned char saved_mixers[] = {
3118         SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,
3119         SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,
3120         SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,
3121         SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,
3122         SB_DSP4_LINE_DEV, SB_DSP4_LINE_DEV + 1,
3123         SB_DSP4_MIC_DEV, SB_DSP4_SPEAKER_DEV,
3124         CM_REG_EXTENT_IND, SB_DSP4_OUTPUT_SW,
3125         SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,
3126 };
3127
3128 static int snd_cmipci_suspend(struct pci_dev *pci, pm_message_t state)
3129 {
3130         struct snd_card *card = pci_get_drvdata(pci);
3131         struct cmipci *cm = card->private_data;
3132         int i;
3133
3134         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3135
3136         snd_pcm_suspend_all(cm->pcm);
3137         snd_pcm_suspend_all(cm->pcm2);
3138         snd_pcm_suspend_all(cm->pcm_spdif);
3139
3140         /* save registers */
3141         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3142                 cm->saved_regs[i] = snd_cmipci_read(cm, saved_regs[i]);
3143         for (i = 0; i < ARRAY_SIZE(saved_mixers); i++)
3144                 cm->saved_mixers[i] = snd_cmipci_mixer_read(cm, saved_mixers[i]);
3145
3146         /* disable ints */
3147         snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0);
3148
3149         pci_disable_device(pci);
3150         pci_save_state(pci);
3151         pci_set_power_state(pci, pci_choose_state(pci, state));
3152         return 0;
3153 }
3154
3155 static int snd_cmipci_resume(struct pci_dev *pci)
3156 {
3157         struct snd_card *card = pci_get_drvdata(pci);
3158         struct cmipci *cm = card->private_data;
3159         int i;
3160
3161         pci_set_power_state(pci, PCI_D0);
3162         pci_restore_state(pci);
3163         if (pci_enable_device(pci) < 0) {
3164                 printk(KERN_ERR "cmipci: pci_enable_device failed, "
3165                        "disabling device\n");
3166                 snd_card_disconnect(card);
3167                 return -EIO;
3168         }
3169         pci_set_master(pci);
3170
3171         /* reset / initialize to a sane state */
3172         snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0);
3173         snd_cmipci_ch_reset(cm, CM_CH_PLAY);
3174         snd_cmipci_ch_reset(cm, CM_CH_CAPT);
3175         snd_cmipci_mixer_write(cm, 0, 0);
3176
3177         /* restore registers */
3178         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3179                 snd_cmipci_write(cm, saved_regs[i], cm->saved_regs[i]);
3180         for (i = 0; i < ARRAY_SIZE(saved_mixers); i++)
3181                 snd_cmipci_mixer_write(cm, saved_mixers[i], cm->saved_mixers[i]);
3182
3183         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
3184         return 0;
3185 }
3186 #endif /* CONFIG_PM */
3187
3188 static struct pci_driver driver = {
3189         .name = "C-Media PCI",
3190         .id_table = snd_cmipci_ids,
3191         .probe = snd_cmipci_probe,
3192         .remove = __devexit_p(snd_cmipci_remove),
3193 #ifdef CONFIG_PM
3194         .suspend = snd_cmipci_suspend,
3195         .resume = snd_cmipci_resume,
3196 #endif
3197 };
3198
3199 static int __init alsa_card_cmipci_init(void)
3200 {
3201         return pci_register_driver(&driver);
3202 }
3203
3204 static void __exit alsa_card_cmipci_exit(void)
3205 {
3206         pci_unregister_driver(&driver);
3207 }
3208
3209 module_init(alsa_card_cmipci_init)
3210 module_exit(alsa_card_cmipci_exit)