sound/pci/cmipci.c

   1 /*
   2  * Driver for C-Media CMI8338 and 8738 PCI soundcards.
   3  * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de>
   4  *
   5  *   This program is free software; you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation; either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program; if not, write to the Free Software
  17  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18  */
  19
  20 /* Does not work. Warning may block system in capture mode */
  21 /* #define USE_VAR48KRATE */
  22
  23 #include <sound/driver.h>
  24 #include <asm/io.h>
  25 #include <linux/delay.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/init.h>
  28 #include <linux/pci.h>
  29 #include <linux/slab.h>
  30 #include <linux/gameport.h>
  31 #include <linux/moduleparam.h>
  32 #include <sound/core.h>
  33 #include <sound/info.h>
  34 #include <sound/control.h>
  35 #include <sound/pcm.h>
  36 #include <sound/rawmidi.h>
  37 #include <sound/mpu401.h>
  38 #include <sound/opl3.h>
  39 #include <sound/sb.h>
  40 #include <sound/asoundef.h>
  41 #include <sound/initval.h>
  42
  43 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  44 MODULE_DESCRIPTION("C-Media CMI8x38 PCI");
  45 MODULE_LICENSE("GPL");
  46 MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8738},"
  47                 "{C-Media,CMI8738B},"
  48                 "{C-Media,CMI8338A},"
  49                 "{C-Media,CMI8338B}}");
  50
  51 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
  52 #define SUPPORT_JOYSTICK 1
  53 #endif
  54
  55 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  56 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  57 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable switches */
  58 static long mpu_port[SNDRV_CARDS];
  59 static long fm_port[SNDRV_CARDS];
  60 static int soft_ac3[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)]=1};
  61 #ifdef SUPPORT_JOYSTICK
  62 static int joystick_port[SNDRV_CARDS];
  63 #endif
  64
  65 module_param_array(index, int, NULL, 0444);
  66 MODULE_PARM_DESC(index, "Index value for C-Media PCI soundcard.");
  67 module_param_array(id, charp, NULL, 0444);
  68 MODULE_PARM_DESC(id, "ID string for C-Media PCI soundcard.");
  69 module_param_array(enable, bool, NULL, 0444);
  70 MODULE_PARM_DESC(enable, "Enable C-Media PCI soundcard.");
  71 module_param_array(mpu_port, long, NULL, 0444);
  72 MODULE_PARM_DESC(mpu_port, "MPU-401 port.");
  73 module_param_array(fm_port, long, NULL, 0444);
  74 MODULE_PARM_DESC(fm_port, "FM port.");
  75 module_param_array(soft_ac3, bool, NULL, 0444);
  76 MODULE_PARM_DESC(soft_ac3, "Sofware-conversion of raw SPDIF packets (model 033 only).");
  77 #ifdef SUPPORT_JOYSTICK
  78 module_param_array(joystick_port, int, NULL, 0444);
  79 MODULE_PARM_DESC(joystick_port, "Joystick port address.");
  80 #endif
  81
  82 /*
  83  * CM8x38 registers definition
  84  */
  85
  86 #define CM_REG_FUNCTRL0         0x00
  87 #define CM_RST_CH1              0x00080000
  88 #define CM_RST_CH0              0x00040000
  89 #define CM_CHEN1                0x00020000      /* ch1: enable */
  90 #define CM_CHEN0                0x00010000      /* ch0: enable */
  91 #define CM_PAUSE1               0x00000008      /* ch1: pause */
  92 #define CM_PAUSE0               0x00000004      /* ch0: pause */
  93 #define CM_CHADC1               0x00000002      /* ch1, 0:playback, 1:record */
  94 #define CM_CHADC0               0x00000001      /* ch0, 0:playback, 1:record */
  95
  96 #define CM_REG_FUNCTRL1         0x04
  97 #define CM_ASFC_MASK            0x0000E000      /* ADC sampling frequency */
  98 #define CM_ASFC_SHIFT           13
  99 #define CM_DSFC_MASK            0x00001C00      /* DAC sampling frequency */
 100 #define CM_DSFC_SHIFT           10
 101 #define CM_SPDF_1               0x00000200      /* SPDIF IN/OUT at channel B */
 102 #define CM_SPDF_0               0x00000100      /* SPDIF OUT only channel A */
 103 #define CM_SPDFLOOP             0x00000080      /* ext. SPDIIF/OUT -> IN loopback */
 104 #define CM_SPDO2DAC             0x00000040      /* SPDIF/OUT can be heard from internal DAC */
 105 #define CM_INTRM                0x00000020      /* master control block (MCB) interrupt enabled */
 106 #define CM_BREQ                 0x00000010      /* bus master enabled */
 107 #define CM_VOICE_EN             0x00000008      /* legacy voice (SB16,FM) */
 108 #define CM_UART_EN              0x00000004      /* UART */
 109 #define CM_JYSTK_EN             0x00000002      /* joy stick */
 110
 111 #define CM_REG_CHFORMAT         0x08
 112
 113 #define CM_CHB3D5C              0x80000000      /* 5,6 channels */
 114 #define CM_CHB3D                0x20000000      /* 4 channels */
 115
 116 #define CM_CHIP_MASK1           0x1f000000
 117 #define CM_CHIP_037             0x01000000
 118
 119 #define CM_SPDIF_SELECT1        0x00080000      /* for model <= 037 ? */
 120 #define CM_AC3EN1               0x00100000      /* enable AC3: model 037 */
 121 #define CM_SPD24SEL             0x00020000      /* 24bit spdif: model 037 */
 122 /* #define CM_SPDIF_INVERSE     0x00010000 */ /* ??? */
 123
 124 #define CM_ADCBITLEN_MASK       0x0000C000
 125 #define CM_ADCBITLEN_16         0x00000000
 126 #define CM_ADCBITLEN_15         0x00004000
 127 #define CM_ADCBITLEN_14         0x00008000
 128 #define CM_ADCBITLEN_13         0x0000C000
 129
 130 #define CM_ADCDACLEN_MASK       0x00003000
 131 #define CM_ADCDACLEN_060        0x00000000
 132 #define CM_ADCDACLEN_066        0x00001000
 133 #define CM_ADCDACLEN_130        0x00002000
 134 #define CM_ADCDACLEN_280        0x00003000
 135
 136 #define CM_CH1_SRATE_176K       0x00000800
 137 #define CM_CH1_SRATE_88K        0x00000400
 138 #define CM_CH0_SRATE_176K       0x00000200
 139 #define CM_CH0_SRATE_88K        0x00000100
 140
 141 #define CM_SPDIF_INVERSE2       0x00000080      /* model 055? */
 142
 143 #define CM_CH1FMT_MASK          0x0000000C
 144 #define CM_CH1FMT_SHIFT         2
 145 #define CM_CH0FMT_MASK          0x00000003
 146 #define CM_CH0FMT_SHIFT         0
 147
 148 #define CM_REG_INT_HLDCLR       0x0C
 149 #define CM_CHIP_MASK2           0xff000000
 150 #define CM_CHIP_039             0x04000000
 151 #define CM_CHIP_039_6CH         0x01000000
 152 #define CM_CHIP_055             0x08000000
 153 #define CM_CHIP_8768            0x20000000
 154 #define CM_TDMA_INT_EN          0x00040000
 155 #define CM_CH1_INT_EN           0x00020000
 156 #define CM_CH0_INT_EN           0x00010000
 157 #define CM_INT_HOLD             0x00000002
 158 #define CM_INT_CLEAR            0x00000001
 159
 160 #define CM_REG_INT_STATUS       0x10
 161 #define CM_INTR                 0x80000000
 162 #define CM_VCO                  0x08000000      /* Voice Control? CMI8738 */
 163 #define CM_MCBINT               0x04000000      /* Master Control Block abort cond.? */
 164 #define CM_UARTINT              0x00010000
 165 #define CM_LTDMAINT             0x00008000
 166 #define CM_HTDMAINT             0x00004000
 167 #define CM_XDO46                0x00000080      /* Modell 033? Direct programming EEPROM (read data register) */
 168 #define CM_LHBTOG               0x00000040      /* High/Low status from DMA ctrl register */
 169 #define CM_LEG_HDMA             0x00000020      /* Legacy is in High DMA channel */
 170 #define CM_LEG_STEREO           0x00000010      /* Legacy is in Stereo mode */
 171 #define CM_CH1BUSY              0x00000008
 172 #define CM_CH0BUSY              0x00000004
 173 #define CM_CHINT1               0x00000002
 174 #define CM_CHINT0               0x00000001
 175
 176 #define CM_REG_LEGACY_CTRL      0x14
 177 #define CM_NXCHG                0x80000000      /* h/w multi channels? */
 178 #define CM_VMPU_MASK            0x60000000      /* MPU401 i/o port address */
 179 #define CM_VMPU_330             0x00000000
 180 #define CM_VMPU_320             0x20000000
 181 #define CM_VMPU_310             0x40000000
 182 #define CM_VMPU_300             0x60000000
 183 #define CM_VSBSEL_MASK          0x0C000000      /* SB16 base address */
 184 #define CM_VSBSEL_220           0x00000000
 185 #define CM_VSBSEL_240           0x04000000
 186 #define CM_VSBSEL_260           0x08000000
 187 #define CM_VSBSEL_280           0x0C000000
 188 #define CM_FMSEL_MASK           0x03000000      /* FM OPL3 base address */
 189 #define CM_FMSEL_388            0x00000000
 190 #define CM_FMSEL_3C8            0x01000000
 191 #define CM_FMSEL_3E0            0x02000000
 192 #define CM_FMSEL_3E8            0x03000000
 193 #define CM_ENSPDOUT             0x00800000      /* enable XPDIF/OUT to I/O interface */
 194 #define CM_SPDCOPYRHT           0x00400000      /* set copyright spdif in/out */
 195 #define CM_DAC2SPDO             0x00200000      /* enable wave+fm_midi -> SPDIF/OUT */
 196 #define CM_SETRETRY             0x00010000      /* 0: legacy i/o wait (default), 1: legacy i/o bus retry */
 197 #define CM_CHB3D6C              0x00008000      /* 5.1 channels support */
 198 #define CM_LINE_AS_BASS         0x00006000      /* use line-in as bass */
 199
 200 #define CM_REG_MISC_CTRL        0x18
 201 #define CM_PWD                  0x80000000
 202 #define CM_RESET                0x40000000
 203 #define CM_SFIL_MASK            0x30000000
 204 #define CM_TXVX                 0x08000000
 205 #define CM_N4SPK3D              0x04000000      /* 4ch output */
 206 #define CM_SPDO5V               0x02000000      /* 5V spdif output (1 = 0.5v (coax)) */
 207 #define CM_SPDIF48K             0x01000000      /* write */
 208 #define CM_SPATUS48K            0x01000000      /* read */
 209 #define CM_ENDBDAC              0x00800000      /* enable dual dac */
 210 #define CM_XCHGDAC              0x00400000      /* 0: front=ch0, 1: front=ch1 */
 211 #define CM_SPD32SEL             0x00200000      /* 0: 16bit SPDIF, 1: 32bit */
 212 #define CM_SPDFLOOPI            0x00100000      /* int. SPDIF-IN -> int. OUT */
 213 #define CM_FM_EN                0x00080000      /* enalbe FM */
 214 #define CM_AC3EN2               0x00040000      /* enable AC3: model 039 */
 215 #define CM_VIDWPDSB             0x00010000
 216 #define CM_SPDF_AC97            0x00008000      /* 0: SPDIF/OUT 44.1K, 1: 48K */
 217 #define CM_MASK_EN              0x00004000
 218 #define CM_VIDWPPRT             0x00002000
 219 #define CM_SFILENB              0x00001000
 220 #define CM_MMODE_MASK           0x00000E00
 221 #define CM_SPDIF_SELECT2        0x00000100      /* for model > 039 ? */
 222 #define CM_ENCENTER             0x00000080
 223 #define CM_FLINKON              0x00000040
 224 #define CM_FLINKOFF             0x00000020
 225 #define CM_MIDSMP               0x00000010
 226 #define CM_UPDDMA_MASK          0x0000000C
 227 #define CM_TWAIT_MASK           0x00000003
 228
 229         /* byte */
 230 #define CM_REG_MIXER0           0x20
 231
 232 #define CM_REG_SB16_DATA        0x22
 233 #define CM_REG_SB16_ADDR        0x23
 234
 235 #define CM_REFFREQ_XIN          (315*1000*1000)/22      /* 14.31818 Mhz reference clock frequency pin XIN */
 236 #define CM_ADCMULT_XIN          512                     /* Guessed (487 best for 44.1kHz, not for 88/176kHz) */
 237 #define CM_TOLERANCE_RATE       0.001                   /* Tolerance sample rate pitch (1000ppm) */
 238 #define CM_MAXIMUM_RATE         80000000                /* Note more than 80MHz */
 239
 240 #define CM_REG_MIXER1           0x24
 241 #define CM_FMMUTE               0x80    /* mute FM */
 242 #define CM_FMMUTE_SHIFT         7
 243 #define CM_WSMUTE               0x40    /* mute PCM */
 244 #define CM_WSMUTE_SHIFT         6
 245 #define CM_SPK4                 0x20    /* lin-in -> rear line out */
 246 #define CM_SPK4_SHIFT           5
 247 #define CM_REAR2FRONT           0x10    /* exchange rear/front */
 248 #define CM_REAR2FRONT_SHIFT     4
 249 #define CM_WAVEINL              0x08    /* digital wave rec. left chan */
 250 #define CM_WAVEINL_SHIFT        3
 251 #define CM_WAVEINR              0x04    /* digical wave rec. right */
 252 #define CM_WAVEINR_SHIFT        2
 253 #define CM_X3DEN                0x02    /* 3D surround enable */
 254 #define CM_X3DEN_SHIFT          1
 255 #define CM_CDPLAY               0x01    /* enable SPDIF/IN PCM -> DAC */
 256 #define CM_CDPLAY_SHIFT         0
 257
 258 #define CM_REG_MIXER2           0x25
 259 #define CM_RAUXREN              0x80    /* AUX right capture */
 260 #define CM_RAUXREN_SHIFT        7
 261 #define CM_RAUXLEN              0x40    /* AUX left capture */
 262 #define CM_RAUXLEN_SHIFT        6
 263 #define CM_VAUXRM               0x20    /* AUX right mute */
 264 #define CM_VAUXRM_SHIFT         5
 265 #define CM_VAUXLM               0x10    /* AUX left mute */
 266 #define CM_VAUXLM_SHIFT         4
 267 #define CM_VADMIC_MASK          0x0e    /* mic gain level (0-3) << 1 */
 268 #define CM_VADMIC_SHIFT         1
 269 #define CM_MICGAINZ             0x01    /* mic boost */
 270 #define CM_MICGAINZ_SHIFT       0
 271
 272 #define CM_REG_AUX_VOL          0x26
 273 #define CM_VAUXL_MASK           0xf0
 274 #define CM_VAUXR_MASK           0x0f
 275
 276 #define CM_REG_MISC             0x27
 277 #define CM_XGPO1                0x20
 278 // #define CM_XGPBIO            0x04
 279 #define CM_MIC_CENTER_LFE       0x04    /* mic as center/lfe out? (model 039 or later?) */
 280 #define CM_SPDIF_INVERSE        0x04    /* spdif input phase inverse (model 037) */
 281 #define CM_SPDVALID             0x02    /* spdif input valid check */
 282 #define CM_DMAUTO               0x01
 283
 284 #define CM_REG_AC97             0x28    /* hmmm.. do we have ac97 link? */
 285 /*
 286  * For CMI-8338 (0x28 - 0x2b) .. is this valid for CMI-8738
 287  * or identical with AC97 codec?
 288  */
 289 #define CM_REG_EXTERN_CODEC     CM_REG_AC97
 290
 291 /*
 292  * MPU401 pci port index address 0x40 - 0x4f (CMI-8738 spec ver. 0.6)
 293  */
 294 #define CM_REG_MPU_PCI          0x40
 295
 296 /*
 297  * FM pci port index address 0x50 - 0x5f (CMI-8738 spec ver. 0.6)
 298  */
 299 #define CM_REG_FM_PCI           0x50
 300
 301 /*
 302  * access from SB-mixer port
 303  */
 304 #define CM_REG_EXTENT_IND       0xf0
 305 #define CM_VPHONE_MASK          0xe0    /* Phone volume control (0-3) << 5 */
 306 #define CM_VPHONE_SHIFT         5
 307 #define CM_VPHOM                0x10    /* Phone mute control */
 308 #define CM_VSPKM                0x08    /* Speaker mute control, default high */
 309 #define CM_RLOOPREN             0x04    /* Rec. R-channel enable */
 310 #define CM_RLOOPLEN             0x02    /* Rec. L-channel enable */
 311 #define CM_VADMIC3              0x01    /* Mic record boost */
 312
 313 /*
 314  * CMI-8338 spec ver 0.5 (this is not valid for CMI-8738):
 315  * the 8 registers 0xf8 - 0xff are used for programming m/n counter by the PLL
 316  * unit (readonly?).
 317  */
 318 #define CM_REG_PLL              0xf8
 319
 320 /*
 321  * extended registers
 322  */
 323 #define CM_REG_CH0_FRAME1       0x80    /* base address */
 324 #define CM_REG_CH0_FRAME2       0x84
 325 #define CM_REG_CH1_FRAME1       0x88    /* 0-15: count of samples at bus master; buffer size */
 326 #define CM_REG_CH1_FRAME2       0x8C    /* 16-31: count of samples at codec; fragment size */
 327 #define CM_REG_MISC_CTRL_8768   0x92    /* reg. name the same as 0x18 */
 328 #define CM_CHB3D8C              0x20    /* 7.1 channels support */
 329 #define CM_SPD32FMT             0x10    /* SPDIF/IN 32k */
 330 #define CM_ADC2SPDIF            0x08    /* ADC output to SPDIF/OUT */
 331 #define CM_SHAREADC             0x04    /* DAC in ADC as Center/LFE */
 332 #define CM_REALTCMP             0x02    /* monitor the CMPL/CMPR of ADC */
 333 #define CM_INVLRCK              0x01    /* invert ZVPORT's LRCK */
 334
 335 /*
 336  * size of i/o region
 337  */
 338 #define CM_EXTENT_CODEC   0x100
 339 #define CM_EXTENT_MIDI    0x2
 340 #define CM_EXTENT_SYNTH   0x4
 341
 342
 343 /*
 344  * channels for playback / capture
 345  */
 346 #define CM_CH_PLAY      0
 347 #define CM_CH_CAPT      1
 348
 349 /*
 350  * flags to check device open/close
 351  */
 352 #define CM_OPEN_NONE    0
 353 #define CM_OPEN_CH_MASK 0x01
 354 #define CM_OPEN_DAC     0x10
 355 #define CM_OPEN_ADC     0x20
 356 #define CM_OPEN_SPDIF   0x40
 357 #define CM_OPEN_MCHAN   0x80
 358 #define CM_OPEN_PLAYBACK        (CM_CH_PLAY | CM_OPEN_DAC)
 359 #define CM_OPEN_PLAYBACK2       (CM_CH_CAPT | CM_OPEN_DAC)
 360 #define CM_OPEN_PLAYBACK_MULTI  (CM_CH_PLAY | CM_OPEN_DAC | CM_OPEN_MCHAN)
 361 #define CM_OPEN_CAPTURE         (CM_CH_CAPT | CM_OPEN_ADC)
 362 #define CM_OPEN_SPDIF_PLAYBACK  (CM_CH_PLAY | CM_OPEN_DAC | CM_OPEN_SPDIF)
 363 #define CM_OPEN_SPDIF_CAPTURE   (CM_CH_CAPT | CM_OPEN_ADC | CM_OPEN_SPDIF)
 364
 365
 366 #if CM_CH_PLAY == 1
 367 #define CM_PLAYBACK_SRATE_176K  CM_CH1_SRATE_176K
 368 #define CM_PLAYBACK_SPDF        CM_SPDF_1
 369 #define CM_CAPTURE_SPDF         CM_SPDF_0
 370 #else
 371 #define CM_PLAYBACK_SRATE_176K CM_CH0_SRATE_176K
 372 #define CM_PLAYBACK_SPDF        CM_SPDF_0
 373 #define CM_CAPTURE_SPDF         CM_SPDF_1
 374 #endif
 375
 376
 377 /*
 378  * driver data
 379  */
 380
 381 typedef struct snd_stru_cmipci cmipci_t;
 382 typedef struct snd_stru_cmipci_pcm cmipci_pcm_t;
 383
 384 struct snd_stru_cmipci_pcm {
 385         snd_pcm_substream_t *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 snd_stru_cmipci {
 412         snd_card_t *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         snd_pcm_t *pcm;         /* DAC/ADC PCM */
 422         snd_pcm_t *pcm2;        /* 2nd DAC */
 423         snd_pcm_t *pcm_spdif;   /* SPDIF */
 424
 425         int chip_version;
 426         int max_channels;
 427         unsigned int has_dual_dac: 1;
 428         unsigned int can_ac3_sw: 1;
 429         unsigned int can_ac3_hw: 1;
 430         unsigned int can_multi_ch: 1;
 431         unsigned int do_soft_ac3: 1;
 432
 433         unsigned int spdif_playback_avail: 1;   /* spdif ready? */
 434         unsigned int spdif_playback_enabled: 1; /* spdif switch enabled? */
 435         int spdif_counter;      /* for software AC3 */
 436
 437         unsigned int dig_status;
 438         unsigned int dig_pcm_status;
 439
 440         snd_pcm_hardware_t *hw_info[3]; /* for playbacks */
 441
 442         int opened[2];  /* open mode */
 443         struct semaphore open_mutex;
 444
 445         unsigned int mixer_insensitive: 1;
 446         snd_kcontrol_t *mixer_res_ctl[CM_SAVED_MIXERS];
 447         int mixer_res_status[CM_SAVED_MIXERS];
 448
 449         opl3_t *opl3;
 450         snd_hwdep_t *opl3hwdep;
 451
 452         cmipci_pcm_t channel[2];        /* ch0 - DAC, ch1 - ADC or 2nd DAC */
 453
 454         /* external MIDI */
 455         snd_rawmidi_t *rmidi;
 456
 457 #ifdef SUPPORT_JOYSTICK
 458         struct gameport *gameport;
 459 #endif
 460
 461         spinlock_t reg_lock;
 462 };
 463
 464
 465 /* read/write operations for dword register */
 466 static inline void snd_cmipci_write(cmipci_t *cm, unsigned int cmd, unsigned int data)
 467 {
 468         outl(data, cm->iobase + cmd);
 469 }
 470
 471 static inline unsigned int snd_cmipci_read(cmipci_t *cm, unsigned int cmd)
 472 {
 473         return inl(cm->iobase + cmd);
 474 }
 475
 476 /* read/write operations for word register */
 477 static inline void snd_cmipci_write_w(cmipci_t *cm, unsigned int cmd, unsigned short data)
 478 {
 479         outw(data, cm->iobase + cmd);
 480 }
 481
 482 static inline unsigned short snd_cmipci_read_w(cmipci_t *cm, unsigned int cmd)
 483 {
 484         return inw(cm->iobase + cmd);
 485 }
 486
 487 /* read/write operations for byte register */
 488 static inline void snd_cmipci_write_b(cmipci_t *cm, unsigned int cmd, unsigned char data)
 489 {
 490         outb(data, cm->iobase + cmd);
 491 }
 492
 493 static inline unsigned char snd_cmipci_read_b(cmipci_t *cm, unsigned int cmd)
 494 {
 495         return inb(cm->iobase + cmd);
 496 }
 497
 498 /* bit operations for dword register */
 499 static int snd_cmipci_set_bit(cmipci_t *cm, unsigned int cmd, unsigned int flag)
 500 {
 501         unsigned int val, oval;
 502         val = oval = inl(cm->iobase + cmd);
 503         val |= flag;
 504         if (val == oval)
 505                 return 0;
 506         outl(val, cm->iobase + cmd);
 507         return 1;
 508 }
 509
 510 static int snd_cmipci_clear_bit(cmipci_t *cm, unsigned int cmd, unsigned int flag)
 511 {
 512         unsigned int val, oval;
 513         val = oval = inl(cm->iobase + cmd);
 514         val &= ~flag;
 515         if (val == oval)
 516                 return 0;
 517         outl(val, cm->iobase + cmd);
 518         return 1;
 519 }
 520
 521 /* bit operations for byte register */
 522 static int snd_cmipci_set_bit_b(cmipci_t *cm, unsigned int cmd, unsigned char flag)
 523 {
 524         unsigned char val, oval;
 525         val = oval = inb(cm->iobase + cmd);
 526         val |= flag;
 527         if (val == oval)
 528                 return 0;
 529         outb(val, cm->iobase + cmd);
 530         return 1;
 531 }
 532
 533 static int snd_cmipci_clear_bit_b(cmipci_t *cm, unsigned int cmd, unsigned char flag)
 534 {
 535         unsigned char val, oval;
 536         val = oval = inb(cm->iobase + cmd);
 537         val &= ~flag;
 538         if (val == oval)
 539                 return 0;
 540         outb(val, cm->iobase + cmd);
 541         return 1;
 542 }
 543
 544
 545 /*
 546  * PCM interface
 547  */
 548
 549 /*
 550  * calculate frequency
 551  */
 552
 553 static unsigned int rates[] = { 5512, 11025, 22050, 44100, 8000, 16000, 32000, 48000 };
 554
 555 static unsigned int snd_cmipci_rate_freq(unsigned int rate)
 556 {
 557         unsigned int i;
 558         for (i = 0; i < ARRAY_SIZE(rates); i++) {
 559                 if (rates[i] == rate)
 560                         return i;
 561         }
 562         snd_BUG();
 563         return 0;
 564 }
 565
 566 #ifdef USE_VAR48KRATE
 567 /*
 568  * Determine PLL values for frequency setup, maybe the CMI8338 (CMI8738???)
 569  * does it this way .. maybe not.  Never get any information from C-Media about
 570  * that <werner@suse.de>.
 571  */
 572 static int snd_cmipci_pll_rmn(unsigned int rate, unsigned int adcmult, int *r, int *m, int *n)
 573 {
 574         unsigned int delta, tolerance;
 575         int xm, xn, xr;
 576
 577         for (*r = 0; rate < CM_MAXIMUM_RATE/adcmult; *r += (1<<5))
 578                 rate <<= 1;
 579         *n = -1;
 580         if (*r > 0xff)
 581                 goto out;
 582         tolerance = rate*CM_TOLERANCE_RATE;
 583
 584         for (xn = (1+2); xn < (0x1f+2); xn++) {
 585                 for (xm = (1+2); xm < (0xff+2); xm++) {
 586                         xr = ((CM_REFFREQ_XIN/adcmult) * xm) / xn;
 587
 588                         if (xr < rate)
 589                                 delta = rate - xr;
 590                         else
 591                                 delta = xr - rate;
 592
 593                         /*
 594                          * If we found one, remember this,
 595                          * and try to find a closer one
 596                          */
 597                         if (delta < tolerance) {
 598                                 tolerance = delta;
 599                                 *m = xm - 2;
 600                                 *n = xn - 2;
 601                         }
 602                 }
 603         }
 604 out:
 605         return (*n > -1);
 606 }
 607
 608 /*
 609  * Program pll register bits, I assume that the 8 registers 0xf8 upto 0xff
 610  * are mapped onto the 8 ADC/DAC sampling frequency which can be choosen
 611  * at the register CM_REG_FUNCTRL1 (0x04).
 612  * Problem: other ways are also possible (any information about that?)
 613  */
 614 static void snd_cmipci_set_pll(cmipci_t *cm, unsigned int rate, unsigned int slot)
 615 {
 616         unsigned int reg = CM_REG_PLL + slot;
 617         /*
 618          * Guess that this programs at reg. 0x04 the pos 15:13/12:10
 619          * for DSFC/ASFC (000 upto 111).
 620          */
 621
 622         /* FIXME: Init (Do we've to set an other register first before programming?) */
 623
 624         /* FIXME: Is this correct? Or shouldn't the m/n/r values be used for that? */
 625         snd_cmipci_write_b(cm, reg, rate>>8);
 626         snd_cmipci_write_b(cm, reg, rate&0xff);
 627
 628         /* FIXME: Setup (Do we've to set an other register first to enable this?) */
 629 }
 630 #endif /* USE_VAR48KRATE */
 631
 632 static int snd_cmipci_hw_params(snd_pcm_substream_t * substream,
 633                                 snd_pcm_hw_params_t * hw_params)
 634 {
 635         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 636 }
 637
 638 static int snd_cmipci_playback2_hw_params(snd_pcm_substream_t * substream,
 639                                           snd_pcm_hw_params_t * hw_params)
 640 {
 641         cmipci_t *cm = snd_pcm_substream_chip(substream);
 642         if (params_channels(hw_params) > 2) {
 643                 down(&cm->open_mutex);
 644                 if (cm->opened[CM_CH_PLAY]) {
 645                         up(&cm->open_mutex);
 646                         return -EBUSY;
 647                 }
 648                 /* reserve the channel A */
 649                 cm->opened[CM_CH_PLAY] = CM_OPEN_PLAYBACK_MULTI;
 650                 up(&cm->open_mutex);
 651         }
 652         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 653 }
 654
 655 static void snd_cmipci_ch_reset(cmipci_t *cm, int ch)
 656 {
 657         int reset = CM_RST_CH0 << (cm->channel[ch].ch);
 658         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl | reset);
 659         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl & ~reset);
 660         udelay(10);
 661 }
 662
 663 static int snd_cmipci_hw_free(snd_pcm_substream_t * substream)
 664 {
 665         return snd_pcm_lib_free_pages(substream);
 666 }
 667
 668
 669 /*
 670  */
 671
 672 static unsigned int hw_channels[] = {1, 2, 4, 5, 6, 8};
 673 static snd_pcm_hw_constraint_list_t hw_constraints_channels_4 = {
 674         .count = 3,
 675         .list = hw_channels,
 676         .mask = 0,
 677 };
 678 static snd_pcm_hw_constraint_list_t hw_constraints_channels_6 = {
 679         .count = 5,
 680         .list = hw_channels,
 681         .mask = 0,
 682 };
 683 static snd_pcm_hw_constraint_list_t hw_constraints_channels_8 = {
 684         .count = 6,
 685         .list = hw_channels,
 686         .mask = 0,
 687 };
 688
 689 static int set_dac_channels(cmipci_t *cm, cmipci_pcm_t *rec, int channels)
 690 {
 691         if (channels > 2) {
 692                 if (! cm->can_multi_ch)
 693                         return -EINVAL;
 694                 if (rec->fmt != 0x03) /* stereo 16bit only */
 695                         return -EINVAL;
 696
 697                 spin_lock_irq(&cm->reg_lock);
 698                 snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG);
 699                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
 700                 if (channels > 4) {
 701                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
 702                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
 703                 } else {
 704                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
 705                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
 706                 }
 707                 if (channels >= 6) {
 708                         snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
 709                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
 710                 } else {
 711                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
 712                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
 713                 }
 714                 if (cm->chip_version == 68) {
 715                         if (channels == 8) {
 716                                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL_8768, CM_CHB3D8C);
 717                         } else {
 718                                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL_8768, CM_CHB3D8C);
 719                         }
 720                 }
 721                 spin_unlock_irq(&cm->reg_lock);
 722
 723         } else {
 724                 if (cm->can_multi_ch) {
 725                         spin_lock_irq(&cm->reg_lock);
 726                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG);
 727                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D);
 728                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C);
 729                         snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C);
 730                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER);
 731                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
 732                         spin_unlock_irq(&cm->reg_lock);
 733                 }
 734         }
 735         return 0;
 736 }
 737
 738
 739 /*
 740  * prepare playback/capture channel
 741  * channel to be used must have been set in rec->ch.
 742  */
 743 static int snd_cmipci_pcm_prepare(cmipci_t *cm, cmipci_pcm_t *rec,
 744                                  snd_pcm_substream_t *substream)
 745 {
 746         unsigned int reg, freq, val;
 747         snd_pcm_runtime_t *runtime = substream->runtime;
 748
 749         rec->fmt = 0;
 750         rec->shift = 0;
 751         if (snd_pcm_format_width(runtime->format) >= 16) {
 752                 rec->fmt |= 0x02;
 753                 if (snd_pcm_format_width(runtime->format) > 16)
 754                         rec->shift++; /* 24/32bit */
 755         }
 756         if (runtime->channels > 1)
 757                 rec->fmt |= 0x01;
 758         if (rec->is_dac && set_dac_channels(cm, rec, runtime->channels) < 0) {
 759                 snd_printd("cannot set dac channels\n");
 760                 return -EINVAL;
 761         }
 762
 763         rec->offset = runtime->dma_addr;
 764         /* buffer and period sizes in frame */
 765         rec->dma_size = runtime->buffer_size << rec->shift;
 766         rec->period_size = runtime->period_size << rec->shift;
 767         if (runtime->channels > 2) {
 768                 /* multi-channels */
 769                 rec->dma_size = (rec->dma_size * runtime->channels) / 2;
 770                 rec->period_size = (rec->period_size * runtime->channels) / 2;
 771         }
 772
 773         spin_lock_irq(&cm->reg_lock);
 774
 775         /* set buffer address */
 776         reg = rec->ch ? CM_REG_CH1_FRAME1 : CM_REG_CH0_FRAME1;
 777         snd_cmipci_write(cm, reg, rec->offset);
 778         /* program sample counts */
 779         reg = rec->ch ? CM_REG_CH1_FRAME2 : CM_REG_CH0_FRAME2;
 780         snd_cmipci_write_w(cm, reg, rec->dma_size - 1);
 781         snd_cmipci_write_w(cm, reg + 2, rec->period_size - 1);
 782
 783         /* set adc/dac flag */
 784         val = rec->ch ? CM_CHADC1 : CM_CHADC0;
 785         if (rec->is_dac)
 786                 cm->ctrl &= ~val;
 787         else
 788                 cm->ctrl |= val;
 789         snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
 790         //snd_printd("cmipci: functrl0 = %08x\n", cm->ctrl);
 791
 792         /* set sample rate */
 793         freq = snd_cmipci_rate_freq(runtime->rate);
 794         val = snd_cmipci_read(cm, CM_REG_FUNCTRL1);
 795         if (rec->ch) {
 796                 val &= ~CM_ASFC_MASK;
 797                 val |= (freq << CM_ASFC_SHIFT) & CM_ASFC_MASK;
 798         } else {
 799                 val &= ~CM_DSFC_MASK;
 800                 val |= (freq << CM_DSFC_SHIFT) & CM_DSFC_MASK;
 801         }
 802         snd_cmipci_write(cm, CM_REG_FUNCTRL1, val);
 803         //snd_printd("cmipci: functrl1 = %08x\n", val);
 804
 805         /* set format */
 806         val = snd_cmipci_read(cm, CM_REG_CHFORMAT);
 807         if (rec->ch) {
 808                 val &= ~CM_CH1FMT_MASK;
 809                 val |= rec->fmt << CM_CH1FMT_SHIFT;
 810         } else {
 811                 val &= ~CM_CH0FMT_MASK;
 812                 val |= rec->fmt << CM_CH0FMT_SHIFT;
 813         }
 814         snd_cmipci_write(cm, CM_REG_CHFORMAT, val);
 815         //snd_printd("cmipci: chformat = %08x\n", val);
 816
 817         rec->running = 0;
 818         spin_unlock_irq(&cm->reg_lock);
 819
 820         return 0;
 821 }
 822
 823 /*
 824  * PCM trigger/stop
 825  */
 826 static int snd_cmipci_pcm_trigger(cmipci_t *cm, cmipci_pcm_t *rec,
 827                                  snd_pcm_substream_t *substream, int cmd)
 828 {
 829         unsigned int inthld, chen, reset, pause;
 830         int result = 0;
 831
 832         inthld = CM_CH0_INT_EN << rec->ch;
 833         chen = CM_CHEN0 << rec->ch;
 834         reset = CM_RST_CH0 << rec->ch;
 835         pause = CM_PAUSE0 << rec->ch;
 836
 837         spin_lock(&cm->reg_lock);
 838         switch (cmd) {
 839         case SNDRV_PCM_TRIGGER_START:
 840                 rec->running = 1;
 841                 /* set interrupt */
 842                 snd_cmipci_set_bit(cm, CM_REG_INT_HLDCLR, inthld);
 843                 cm->ctrl |= chen;
 844                 /* enable channel */
 845                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
 846                 //snd_printd("cmipci: functrl0 = %08x\n", cm->ctrl);
 847                 break;
 848         case SNDRV_PCM_TRIGGER_STOP:
 849                 rec->running = 0;
 850                 /* disable interrupt */
 851                 snd_cmipci_clear_bit(cm, CM_REG_INT_HLDCLR, inthld);
 852                 /* reset */
 853                 cm->ctrl &= ~chen;
 854                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl | reset);
 855                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl & ~reset);
 856                 break;
 857         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 858                 cm->ctrl |= pause;
 859                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
 860                 break;
 861         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 862                 cm->ctrl &= ~pause;
 863                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, cm->ctrl);
 864                 break;
 865         default:
 866                 result = -EINVAL;
 867                 break;
 868         }
 869         spin_unlock(&cm->reg_lock);
 870         return result;
 871 }
 872
 873 /*
 874  * return the current pointer
 875  */
 876 static snd_pcm_uframes_t snd_cmipci_pcm_pointer(cmipci_t *cm, cmipci_pcm_t *rec,
 877                                           snd_pcm_substream_t *substream)
 878 {
 879         size_t ptr;
 880         unsigned int reg;
 881         if (!rec->running)
 882                 return 0;
 883 #if 1 // this seems better..
 884         reg = rec->ch ? CM_REG_CH1_FRAME2 : CM_REG_CH0_FRAME2;
 885         ptr = rec->dma_size - (snd_cmipci_read_w(cm, reg) + 1);
 886         ptr >>= rec->shift;
 887 #else
 888         reg = rec->ch ? CM_REG_CH1_FRAME1 : CM_REG_CH0_FRAME1;
 889         ptr = snd_cmipci_read(cm, reg) - rec->offset;
 890         ptr = bytes_to_frames(substream->runtime, ptr);
 891 #endif
 892         if (substream->runtime->channels > 2)
 893                 ptr = (ptr * 2) / substream->runtime->channels;
 894         return ptr;
 895 }
 896
 897 /*
 898  * playback
 899  */
 900
 901 static int snd_cmipci_playback_trigger(snd_pcm_substream_t *substream,
 902                                        int cmd)
 903 {
 904         cmipci_t *cm = snd_pcm_substream_chip(substream);
 905         return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_PLAY], substream, cmd);
 906 }
 907
 908 static snd_pcm_uframes_t snd_cmipci_playback_pointer(snd_pcm_substream_t *substream)
 909 {
 910         cmipci_t *cm = snd_pcm_substream_chip(substream);
 911         return snd_cmipci_pcm_pointer(cm, &cm->channel[CM_CH_PLAY], substream);
 912 }
 913
 914
 915
 916 /*
 917  * capture
 918  */
 919
 920 static int snd_cmipci_capture_trigger(snd_pcm_substream_t *substream,
 921                                      int cmd)
 922 {
 923         cmipci_t *cm = snd_pcm_substream_chip(substream);
 924         return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_CAPT], substream, cmd);
 925 }
 926
 927 static snd_pcm_uframes_t snd_cmipci_capture_pointer(snd_pcm_substream_t *substream)
 928 {
 929         cmipci_t *cm = snd_pcm_substream_chip(substream);
 930         return snd_cmipci_pcm_pointer(cm, &cm->channel[CM_CH_CAPT], substream);
 931 }
 932
 933
 934 /*
 935  * hw preparation for spdif
 936  */
 937
 938 static int snd_cmipci_spdif_default_info(snd_kcontrol_t *kcontrol,
 939                                          snd_ctl_elem_info_t *uinfo)
 940 {
 941         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 942         uinfo->count = 1;
 943         return 0;
 944 }
 945
 946 static int snd_cmipci_spdif_default_get(snd_kcontrol_t *kcontrol,
 947                                         snd_ctl_elem_value_t *ucontrol)
 948 {
 949         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
 950         int i;
 951
 952         spin_lock_irq(&chip->reg_lock);
 953         for (i = 0; i < 4; i++)
 954                 ucontrol->value.iec958.status[i] = (chip->dig_status >> (i * 8)) & 0xff;
 955         spin_unlock_irq(&chip->reg_lock);
 956         return 0;
 957 }
 958
 959 static int snd_cmipci_spdif_default_put(snd_kcontrol_t * kcontrol,
 960                                          snd_ctl_elem_value_t * ucontrol)
 961 {
 962         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
 963         int i, change;
 964         unsigned int val;
 965
 966         val = 0;
 967         spin_lock_irq(&chip->reg_lock);
 968         for (i = 0; i < 4; i++)
 969                 val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
 970         change = val != chip->dig_status;
 971         chip->dig_status = val;
 972         spin_unlock_irq(&chip->reg_lock);
 973         return change;
 974 }
 975
 976 static snd_kcontrol_new_t snd_cmipci_spdif_default __devinitdata =
 977 {
 978         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
 979         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 980         .info =         snd_cmipci_spdif_default_info,
 981         .get =          snd_cmipci_spdif_default_get,
 982         .put =          snd_cmipci_spdif_default_put
 983 };
 984
 985 static int snd_cmipci_spdif_mask_info(snd_kcontrol_t *kcontrol,
 986                                       snd_ctl_elem_info_t *uinfo)
 987 {
 988         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 989         uinfo->count = 1;
 990         return 0;
 991 }
 992
 993 static int snd_cmipci_spdif_mask_get(snd_kcontrol_t * kcontrol,
 994                                      snd_ctl_elem_value_t *ucontrol)
 995 {
 996         ucontrol->value.iec958.status[0] = 0xff;
 997         ucontrol->value.iec958.status[1] = 0xff;
 998         ucontrol->value.iec958.status[2] = 0xff;
 999         ucontrol->value.iec958.status[3] = 0xff;
1000         return 0;
1001 }
1002
1003 static snd_kcontrol_new_t snd_cmipci_spdif_mask __devinitdata =
1004 {
1005         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1006         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1007         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1008         .info =         snd_cmipci_spdif_mask_info,
1009         .get =          snd_cmipci_spdif_mask_get,
1010 };
1011
1012 static int snd_cmipci_spdif_stream_info(snd_kcontrol_t *kcontrol,
1013                                         snd_ctl_elem_info_t *uinfo)
1014 {
1015         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1016         uinfo->count = 1;
1017         return 0;
1018 }
1019
1020 static int snd_cmipci_spdif_stream_get(snd_kcontrol_t *kcontrol,
1021                                        snd_ctl_elem_value_t *ucontrol)
1022 {
1023         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
1024         int i;
1025
1026         spin_lock_irq(&chip->reg_lock);
1027         for (i = 0; i < 4; i++)
1028                 ucontrol->value.iec958.status[i] = (chip->dig_pcm_status >> (i * 8)) & 0xff;
1029         spin_unlock_irq(&chip->reg_lock);
1030         return 0;
1031 }
1032
1033 static int snd_cmipci_spdif_stream_put(snd_kcontrol_t *kcontrol,
1034                                        snd_ctl_elem_value_t *ucontrol)
1035 {
1036         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
1037         int i, change;
1038         unsigned int val;
1039
1040         val = 0;
1041         spin_lock_irq(&chip->reg_lock);
1042         for (i = 0; i < 4; i++)
1043                 val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
1044         change = val != chip->dig_pcm_status;
1045         chip->dig_pcm_status = val;
1046         spin_unlock_irq(&chip->reg_lock);
1047         return change;
1048 }
1049
1050 static snd_kcontrol_new_t snd_cmipci_spdif_stream __devinitdata =
1051 {
1052         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1053         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1054         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
1055         .info =         snd_cmipci_spdif_stream_info,
1056         .get =          snd_cmipci_spdif_stream_get,
1057         .put =          snd_cmipci_spdif_stream_put
1058 };
1059
1060 /*
1061  */
1062
1063 /* save mixer setting and mute for AC3 playback */
1064 static int save_mixer_state(cmipci_t *cm)
1065 {
1066         if (! cm->mixer_insensitive) {
1067                 snd_ctl_elem_value_t *val;
1068                 unsigned int i;
1069
1070                 val = kmalloc(sizeof(*val), GFP_ATOMIC);
1071                 if (!val)
1072                         return -ENOMEM;
1073                 for (i = 0; i < CM_SAVED_MIXERS; i++) {
1074                         snd_kcontrol_t *ctl = cm->mixer_res_ctl[i];
1075                         if (ctl) {
1076                                 int event;
1077                                 memset(val, 0, sizeof(*val));
1078                                 ctl->get(ctl, val);
1079                                 cm->mixer_res_status[i] = val->value.integer.value[0];
1080                                 val->value.integer.value[0] = cm_saved_mixer[i].toggle_on;
1081                                 event = SNDRV_CTL_EVENT_MASK_INFO;
1082                                 if (cm->mixer_res_status[i] != val->value.integer.value[0]) {
1083                                         ctl->put(ctl, val); /* toggle */
1084                                         event |= SNDRV_CTL_EVENT_MASK_VALUE;
1085                                 }
1086                                 ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1087                                 snd_ctl_notify(cm->card, event, &ctl->id);
1088                         }
1089                 }
1090                 kfree(val);
1091                 cm->mixer_insensitive = 1;
1092         }
1093         return 0;
1094 }
1095
1096
1097 /* restore the previously saved mixer status */
1098 static void restore_mixer_state(cmipci_t *cm)
1099 {
1100         if (cm->mixer_insensitive) {
1101                 snd_ctl_elem_value_t *val;
1102                 unsigned int i;
1103
1104                 val = kmalloc(sizeof(*val), GFP_KERNEL);
1105                 if (!val)
1106                         return;
1107                 cm->mixer_insensitive = 0; /* at first clear this;
1108                                               otherwise the changes will be ignored */
1109                 for (i = 0; i < CM_SAVED_MIXERS; i++) {
1110                         snd_kcontrol_t *ctl = cm->mixer_res_ctl[i];
1111                         if (ctl) {
1112                                 int event;
1113
1114                                 memset(val, 0, sizeof(*val));
1115                                 ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1116                                 ctl->get(ctl, val);
1117                                 event = SNDRV_CTL_EVENT_MASK_INFO;
1118                                 if (val->value.integer.value[0] != cm->mixer_res_status[i]) {
1119                                         val->value.integer.value[0] = cm->mixer_res_status[i];
1120                                         ctl->put(ctl, val);
1121                                         event |= SNDRV_CTL_EVENT_MASK_VALUE;
1122                                 }
1123                                 snd_ctl_notify(cm->card, event, &ctl->id);
1124                         }
1125                 }
1126                 kfree(val);
1127         }
1128 }
1129
1130 /* spinlock held! */
1131 static void setup_ac3(cmipci_t *cm, snd_pcm_substream_t *subs, int do_ac3, int rate)
1132 {
1133         if (do_ac3) {
1134                 /* AC3EN for 037 */
1135                 snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_AC3EN1);
1136                 /* AC3EN for 039 */
1137                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_AC3EN2);
1138
1139                 if (cm->can_ac3_hw) {
1140                         /* SPD24SEL for 037, 0x02 */
1141                         /* SPD24SEL for 039, 0x20, but cannot be set */
1142                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1143                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1144                 } else { /* can_ac3_sw */
1145                         /* SPD32SEL for 037 & 039, 0x20 */
1146                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1147                         /* set 176K sample rate to fix 033 HW bug */
1148                         if (cm->chip_version == 33) {
1149                                 if (rate >= 48000) {
1150                                         snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1151                                 } else {
1152                                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1153                                 }
1154                         }
1155                 }
1156
1157         } else {
1158                 snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_AC3EN1);
1159                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_AC3EN2);
1160
1161                 if (cm->can_ac3_hw) {
1162                         /* chip model >= 37 */
1163                         if (snd_pcm_format_width(subs->runtime->format) > 16) {
1164                                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1165                                 snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1166                         } else {
1167                                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1168                                 snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1169                         }
1170                 } else {
1171                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPD32SEL);
1172                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_SPD24SEL);
1173                         snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_PLAYBACK_SRATE_176K);
1174                 }
1175         }
1176 }
1177
1178 static int setup_spdif_playback(cmipci_t *cm, snd_pcm_substream_t *subs, int up, int do_ac3)
1179 {
1180         int rate, err;
1181
1182         rate = subs->runtime->rate;
1183
1184         if (up && do_ac3)
1185                 if ((err = save_mixer_state(cm)) < 0)
1186                         return err;
1187
1188         spin_lock_irq(&cm->reg_lock);
1189         cm->spdif_playback_avail = up;
1190         if (up) {
1191                 /* they are controlled via "IEC958 Output Switch" */
1192                 /* snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); */
1193                 /* snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_SPDO2DAC); */
1194                 if (cm->spdif_playback_enabled)
1195                         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
1196                 setup_ac3(cm, subs, do_ac3, rate);
1197
1198                 if (rate == 48000)
1199                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
1200                 else
1201                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
1202
1203         } else {
1204                 /* they are controlled via "IEC958 Output Switch" */
1205                 /* snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); */
1206                 /* snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_SPDO2DAC); */
1207                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
1208                 setup_ac3(cm, subs, 0, 0);
1209         }
1210         spin_unlock_irq(&cm->reg_lock);
1211         return 0;
1212 }
1213
1214
1215 /*
1216  * preparation
1217  */
1218
1219 /* playback - enable spdif only on the certain condition */
1220 static int snd_cmipci_playback_prepare(snd_pcm_substream_t *substream)
1221 {
1222         cmipci_t *cm = snd_pcm_substream_chip(substream);
1223         int rate = substream->runtime->rate;
1224         int err, do_spdif, do_ac3 = 0;
1225
1226         do_spdif = ((rate == 44100 || rate == 48000) &&
1227                     substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE &&
1228                     substream->runtime->channels == 2);
1229         if (do_spdif && cm->can_ac3_hw)
1230                 do_ac3 = cm->dig_pcm_status & IEC958_AES0_NONAUDIO;
1231         if ((err = setup_spdif_playback(cm, substream, do_spdif, do_ac3)) < 0)
1232                 return err;
1233         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_PLAY], substream);
1234 }
1235
1236 /* playback  (via device #2) - enable spdif always */
1237 static int snd_cmipci_playback_spdif_prepare(snd_pcm_substream_t *substream)
1238 {
1239         cmipci_t *cm = snd_pcm_substream_chip(substream);
1240         int err, do_ac3;
1241
1242         if (cm->can_ac3_hw)
1243                 do_ac3 = cm->dig_pcm_status & IEC958_AES0_NONAUDIO;
1244         else
1245                 do_ac3 = 1; /* doesn't matter */
1246         if ((err = setup_spdif_playback(cm, substream, 1, do_ac3)) < 0)
1247                 return err;
1248         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_PLAY], substream);
1249 }
1250
1251 static int snd_cmipci_playback_hw_free(snd_pcm_substream_t *substream)
1252 {
1253         cmipci_t *cm = snd_pcm_substream_chip(substream);
1254         setup_spdif_playback(cm, substream, 0, 0);
1255         restore_mixer_state(cm);
1256         return snd_cmipci_hw_free(substream);
1257 }
1258
1259 /* capture */
1260 static int snd_cmipci_capture_prepare(snd_pcm_substream_t *substream)
1261 {
1262         cmipci_t *cm = snd_pcm_substream_chip(substream);
1263         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_CAPT], substream);
1264 }
1265
1266 /* capture with spdif (via device #2) */
1267 static int snd_cmipci_capture_spdif_prepare(snd_pcm_substream_t *substream)
1268 {
1269         cmipci_t *cm = snd_pcm_substream_chip(substream);
1270
1271         spin_lock_irq(&cm->reg_lock);
1272         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_CAPTURE_SPDF);
1273         spin_unlock_irq(&cm->reg_lock);
1274
1275         return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_CAPT], substream);
1276 }
1277
1278 static int snd_cmipci_capture_spdif_hw_free(snd_pcm_substream_t *subs)
1279 {
1280         cmipci_t *cm = snd_pcm_substream_chip(subs);
1281
1282         spin_lock_irq(&cm->reg_lock);
1283         snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_CAPTURE_SPDF);
1284         spin_unlock_irq(&cm->reg_lock);
1285
1286         return snd_cmipci_hw_free(subs);
1287 }
1288
1289
1290 /*
1291  * interrupt handler
1292  */
1293 static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1294 {
1295         cmipci_t *cm = dev_id;
1296         unsigned int status, mask = 0;
1297
1298         /* fastpath out, to ease interrupt sharing */
1299         status = snd_cmipci_read(cm, CM_REG_INT_STATUS);
1300         if (!(status & CM_INTR))
1301                 return IRQ_NONE;
1302
1303         /* acknowledge interrupt */
1304         spin_lock(&cm->reg_lock);
1305         if (status & CM_CHINT0)
1306                 mask |= CM_CH0_INT_EN;
1307         if (status & CM_CHINT1)
1308                 mask |= CM_CH1_INT_EN;
1309         snd_cmipci_clear_bit(cm, CM_REG_INT_HLDCLR, mask);
1310         snd_cmipci_set_bit(cm, CM_REG_INT_HLDCLR, mask);
1311         spin_unlock(&cm->reg_lock);
1312
1313         if (cm->rmidi && (status & CM_UARTINT))
1314                 snd_mpu401_uart_interrupt(irq, cm->rmidi->private_data, regs);
1315
1316         if (cm->pcm) {
1317                 if ((status & CM_CHINT0) && cm->channel[0].running)
1318                         snd_pcm_period_elapsed(cm->channel[0].substream);
1319                 if ((status & CM_CHINT1) && cm->channel[1].running)
1320                         snd_pcm_period_elapsed(cm->channel[1].substream);
1321         }
1322         return IRQ_HANDLED;
1323 }
1324
1325 /*
1326  * h/w infos
1327  */
1328
1329 /* playback on channel A */
1330 static snd_pcm_hardware_t snd_cmipci_playback =
1331 {
1332         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1333                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1334                                  SNDRV_PCM_INFO_MMAP_VALID),
1335         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1336         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1337         .rate_min =             5512,
1338         .rate_max =             48000,
1339         .channels_min =         1,
1340         .channels_max =         2,
1341         .buffer_bytes_max =     (128*1024),
1342         .period_bytes_min =     64,
1343         .period_bytes_max =     (128*1024),
1344         .periods_min =          2,
1345         .periods_max =          1024,
1346         .fifo_size =            0,
1347 };
1348
1349 /* capture on channel B */
1350 static snd_pcm_hardware_t snd_cmipci_capture =
1351 {
1352         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1353                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1354                                  SNDRV_PCM_INFO_MMAP_VALID),
1355         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1356         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1357         .rate_min =             5512,
1358         .rate_max =             48000,
1359         .channels_min =         1,
1360         .channels_max =         2,
1361         .buffer_bytes_max =     (128*1024),
1362         .period_bytes_min =     64,
1363         .period_bytes_max =     (128*1024),
1364         .periods_min =          2,
1365         .periods_max =          1024,
1366         .fifo_size =            0,
1367 };
1368
1369 /* playback on channel B - stereo 16bit only? */
1370 static snd_pcm_hardware_t snd_cmipci_playback2 =
1371 {
1372         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1373                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1374                                  SNDRV_PCM_INFO_MMAP_VALID),
1375         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1376         .rates =                SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000,
1377         .rate_min =             5512,
1378         .rate_max =             48000,
1379         .channels_min =         2,
1380         .channels_max =         2,
1381         .buffer_bytes_max =     (128*1024),
1382         .period_bytes_min =     64,
1383         .period_bytes_max =     (128*1024),
1384         .periods_min =          2,
1385         .periods_max =          1024,
1386         .fifo_size =            0,
1387 };
1388
1389 /* spdif playback on channel A */
1390 static snd_pcm_hardware_t snd_cmipci_playback_spdif =
1391 {
1392         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1393                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1394                                  SNDRV_PCM_INFO_MMAP_VALID),
1395         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1396         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1397         .rate_min =             44100,
1398         .rate_max =             48000,
1399         .channels_min =         2,
1400         .channels_max =         2,
1401         .buffer_bytes_max =     (128*1024),
1402         .period_bytes_min =     64,
1403         .period_bytes_max =     (128*1024),
1404         .periods_min =          2,
1405         .periods_max =          1024,
1406         .fifo_size =            0,
1407 };
1408
1409 /* spdif playback on channel A (32bit, IEC958 subframes) */
1410 static snd_pcm_hardware_t snd_cmipci_playback_iec958_subframe =
1411 {
1412         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1413                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1414                                  SNDRV_PCM_INFO_MMAP_VALID),
1415         .formats =              SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
1416         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1417         .rate_min =             44100,
1418         .rate_max =             48000,
1419         .channels_min =         2,
1420         .channels_max =         2,
1421         .buffer_bytes_max =     (128*1024),
1422         .period_bytes_min =     64,
1423         .period_bytes_max =     (128*1024),
1424         .periods_min =          2,
1425         .periods_max =          1024,
1426         .fifo_size =            0,
1427 };
1428
1429 /* spdif capture on channel B */
1430 static snd_pcm_hardware_t snd_cmipci_capture_spdif =
1431 {
1432         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1433                                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
1434                                  SNDRV_PCM_INFO_MMAP_VALID),
1435         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1436         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
1437         .rate_min =             44100,
1438         .rate_max =             48000,
1439         .channels_min =         2,
1440         .channels_max =         2,
1441         .buffer_bytes_max =     (128*1024),
1442         .period_bytes_min =     64,
1443         .period_bytes_max =     (128*1024),
1444         .periods_min =          2,
1445         .periods_max =          1024,
1446         .fifo_size =            0,
1447 };
1448
1449 /*
1450  * check device open/close
1451  */
1452 static int open_device_check(cmipci_t *cm, int mode, snd_pcm_substream_t *subs)
1453 {
1454         int ch = mode & CM_OPEN_CH_MASK;
1455
1456         /* FIXME: a file should wait until the device becomes free
1457          * when it's opened on blocking mode.  however, since the current
1458          * pcm framework doesn't pass file pointer before actually opened,
1459          * we can't know whether blocking mode or not in open callback..
1460          */
1461         down(&cm->open_mutex);
1462         if (cm->opened[ch]) {
1463                 up(&cm->open_mutex);
1464                 return -EBUSY;
1465         }
1466         cm->opened[ch] = mode;
1467         cm->channel[ch].substream = subs;
1468         if (! (mode & CM_OPEN_DAC)) {
1469                 /* disable dual DAC mode */
1470                 cm->channel[ch].is_dac = 0;
1471                 spin_lock_irq(&cm->reg_lock);
1472                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC);
1473                 spin_unlock_irq(&cm->reg_lock);
1474         }
1475         up(&cm->open_mutex);
1476         return 0;
1477 }
1478
1479 static void close_device_check(cmipci_t *cm, int mode)
1480 {
1481         int ch = mode & CM_OPEN_CH_MASK;
1482
1483         down(&cm->open_mutex);
1484         if (cm->opened[ch] == mode) {
1485                 if (cm->channel[ch].substream) {
1486                         snd_cmipci_ch_reset(cm, ch);
1487                         cm->channel[ch].running = 0;
1488                         cm->channel[ch].substream = NULL;
1489                 }
1490                 cm->opened[ch] = 0;
1491                 if (! cm->channel[ch].is_dac) {
1492                         /* enable dual DAC mode again */
1493                         cm->channel[ch].is_dac = 1;
1494                         spin_lock_irq(&cm->reg_lock);
1495                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC);
1496                         spin_unlock_irq(&cm->reg_lock);
1497                 }
1498         }
1499         up(&cm->open_mutex);
1500 }
1501
1502 /*
1503  */
1504
1505 static int snd_cmipci_playback_open(snd_pcm_substream_t *substream)
1506 {
1507         cmipci_t *cm = snd_pcm_substream_chip(substream);
1508         snd_pcm_runtime_t *runtime = substream->runtime;
1509         int err;
1510
1511         if ((err = open_device_check(cm, CM_OPEN_PLAYBACK, substream)) < 0)
1512                 return err;
1513         runtime->hw = snd_cmipci_playback;
1514         runtime->hw.channels_max = cm->max_channels;
1515         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1516         cm->dig_pcm_status = cm->dig_status;
1517         return 0;
1518 }
1519
1520 static int snd_cmipci_capture_open(snd_pcm_substream_t *substream)
1521 {
1522         cmipci_t *cm = snd_pcm_substream_chip(substream);
1523         snd_pcm_runtime_t *runtime = substream->runtime;
1524         int err;
1525
1526         if ((err = open_device_check(cm, CM_OPEN_CAPTURE, substream)) < 0)
1527                 return err;
1528         runtime->hw = snd_cmipci_capture;
1529         if (cm->chip_version == 68) {   // 8768 only supports 44k/48k recording
1530                 runtime->hw.rate_min = 41000;
1531                 runtime->hw.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000;
1532         }
1533         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1534         return 0;
1535 }
1536
1537 static int snd_cmipci_playback2_open(snd_pcm_substream_t *substream)
1538 {
1539         cmipci_t *cm = snd_pcm_substream_chip(substream);
1540         snd_pcm_runtime_t *runtime = substream->runtime;
1541         int err;
1542
1543         if ((err = open_device_check(cm, CM_OPEN_PLAYBACK2, substream)) < 0) /* use channel B */
1544                 return err;
1545         runtime->hw = snd_cmipci_playback2;
1546         down(&cm->open_mutex);
1547         if (! cm->opened[CM_CH_PLAY]) {
1548                 if (cm->can_multi_ch) {
1549                         runtime->hw.channels_max = cm->max_channels;
1550                         if (cm->max_channels == 4)
1551                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_4);
1552                         else if (cm->max_channels == 6)
1553                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_6);
1554                         else if (cm->max_channels == 8)
1555                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_8);
1556                 }
1557                 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
1558         }
1559         up(&cm->open_mutex);
1560         return 0;
1561 }
1562
1563 static int snd_cmipci_playback_spdif_open(snd_pcm_substream_t *substream)
1564 {
1565         cmipci_t *cm = snd_pcm_substream_chip(substream);
1566         snd_pcm_runtime_t *runtime = substream->runtime;
1567         int err;
1568
1569         if ((err = open_device_check(cm, CM_OPEN_SPDIF_PLAYBACK, substream)) < 0) /* use channel A */
1570                 return err;
1571         if (cm->can_ac3_hw) {
1572                 runtime->hw = snd_cmipci_playback_spdif;
1573                 if (cm->chip_version >= 37)
1574                         runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1575         } else {
1576                 runtime->hw = snd_cmipci_playback_iec958_subframe;
1577         }
1578         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x40000);
1579         cm->dig_pcm_status = cm->dig_status;
1580         return 0;
1581 }
1582
1583 static int snd_cmipci_capture_spdif_open(snd_pcm_substream_t * substream)
1584 {
1585         cmipci_t *cm = snd_pcm_substream_chip(substream);
1586         snd_pcm_runtime_t *runtime = substream->runtime;
1587         int err;
1588
1589         if ((err = open_device_check(cm, CM_OPEN_SPDIF_CAPTURE, substream)) < 0) /* use channel B */
1590                 return err;
1591         runtime->hw = snd_cmipci_capture_spdif;
1592         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x40000);
1593         return 0;
1594 }
1595
1596
1597 /*
1598  */
1599
1600 static int snd_cmipci_playback_close(snd_pcm_substream_t * substream)
1601 {
1602         cmipci_t *cm = snd_pcm_substream_chip(substream);
1603         close_device_check(cm, CM_OPEN_PLAYBACK);
1604         return 0;
1605 }
1606
1607 static int snd_cmipci_capture_close(snd_pcm_substream_t * substream)
1608 {
1609         cmipci_t *cm = snd_pcm_substream_chip(substream);
1610         close_device_check(cm, CM_OPEN_CAPTURE);
1611         return 0;
1612 }
1613
1614 static int snd_cmipci_playback2_close(snd_pcm_substream_t * substream)
1615 {
1616         cmipci_t *cm = snd_pcm_substream_chip(substream);
1617         close_device_check(cm, CM_OPEN_PLAYBACK2);
1618         close_device_check(cm, CM_OPEN_PLAYBACK_MULTI);
1619         return 0;
1620 }
1621
1622 static int snd_cmipci_playback_spdif_close(snd_pcm_substream_t * substream)
1623 {
1624         cmipci_t *cm = snd_pcm_substream_chip(substream);
1625         close_device_check(cm, CM_OPEN_SPDIF_PLAYBACK);
1626         return 0;
1627 }
1628
1629 static int snd_cmipci_capture_spdif_close(snd_pcm_substream_t * substream)
1630 {
1631         cmipci_t *cm = snd_pcm_substream_chip(substream);
1632         close_device_check(cm, CM_OPEN_SPDIF_CAPTURE);
1633         return 0;
1634 }
1635
1636
1637 /*
1638  */
1639
1640 static snd_pcm_ops_t snd_cmipci_playback_ops = {
1641         .open =         snd_cmipci_playback_open,
1642         .close =        snd_cmipci_playback_close,
1643         .ioctl =        snd_pcm_lib_ioctl,
1644         .hw_params =    snd_cmipci_hw_params,
1645         .hw_free =      snd_cmipci_playback_hw_free,
1646         .prepare =      snd_cmipci_playback_prepare,
1647         .trigger =      snd_cmipci_playback_trigger,
1648         .pointer =      snd_cmipci_playback_pointer,
1649 };
1650
1651 static snd_pcm_ops_t snd_cmipci_capture_ops = {
1652         .open =         snd_cmipci_capture_open,
1653         .close =        snd_cmipci_capture_close,
1654         .ioctl =        snd_pcm_lib_ioctl,
1655         .hw_params =    snd_cmipci_hw_params,
1656         .hw_free =      snd_cmipci_hw_free,
1657         .prepare =      snd_cmipci_capture_prepare,
1658         .trigger =      snd_cmipci_capture_trigger,
1659         .pointer =      snd_cmipci_capture_pointer,
1660 };
1661
1662 static snd_pcm_ops_t snd_cmipci_playback2_ops = {
1663         .open =         snd_cmipci_playback2_open,
1664         .close =        snd_cmipci_playback2_close,
1665         .ioctl =        snd_pcm_lib_ioctl,
1666         .hw_params =    snd_cmipci_playback2_hw_params,
1667         .hw_free =      snd_cmipci_hw_free,
1668         .prepare =      snd_cmipci_capture_prepare,     /* channel B */
1669         .trigger =      snd_cmipci_capture_trigger,     /* channel B */
1670         .pointer =      snd_cmipci_capture_pointer,     /* channel B */
1671 };
1672
1673 static snd_pcm_ops_t snd_cmipci_playback_spdif_ops = {
1674         .open =         snd_cmipci_playback_spdif_open,
1675         .close =        snd_cmipci_playback_spdif_close,
1676         .ioctl =        snd_pcm_lib_ioctl,
1677         .hw_params =    snd_cmipci_hw_params,
1678         .hw_free =      snd_cmipci_playback_hw_free,
1679         .prepare =      snd_cmipci_playback_spdif_prepare,      /* set up rate */
1680         .trigger =      snd_cmipci_playback_trigger,
1681         .pointer =      snd_cmipci_playback_pointer,
1682 };
1683
1684 static snd_pcm_ops_t snd_cmipci_capture_spdif_ops = {
1685         .open =         snd_cmipci_capture_spdif_open,
1686         .close =        snd_cmipci_capture_spdif_close,
1687         .ioctl =        snd_pcm_lib_ioctl,
1688         .hw_params =    snd_cmipci_hw_params,
1689         .hw_free =      snd_cmipci_capture_spdif_hw_free,
1690         .prepare =      snd_cmipci_capture_spdif_prepare,
1691         .trigger =      snd_cmipci_capture_trigger,
1692         .pointer =      snd_cmipci_capture_pointer,
1693 };
1694
1695
1696 /*
1697  */
1698
1699 static void snd_cmipci_pcm_free(snd_pcm_t *pcm)
1700 {
1701         snd_pcm_lib_preallocate_free_for_all(pcm);
1702 }
1703
1704 static int __devinit snd_cmipci_pcm_new(cmipci_t *cm, int device)
1705 {
1706         snd_pcm_t *pcm;
1707         int err;
1708
1709         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 1, &pcm);
1710         if (err < 0)
1711                 return err;
1712
1713         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback_ops);
1714         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cmipci_capture_ops);
1715
1716         pcm->private_data = cm;
1717         pcm->private_free = snd_cmipci_pcm_free;
1718         pcm->info_flags = 0;
1719         strcpy(pcm->name, "C-Media PCI DAC/ADC");
1720         cm->pcm = pcm;
1721
1722         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1723                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1724
1725         return 0;
1726 }
1727
1728 static int __devinit snd_cmipci_pcm2_new(cmipci_t *cm, int device)
1729 {
1730         snd_pcm_t *pcm;
1731         int err;
1732
1733         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 0, &pcm);
1734         if (err < 0)
1735                 return err;
1736
1737         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback2_ops);
1738
1739         pcm->private_data = cm;
1740         pcm->private_free = snd_cmipci_pcm_free;
1741         pcm->info_flags = 0;
1742         strcpy(pcm->name, "C-Media PCI 2nd DAC");
1743         cm->pcm2 = pcm;
1744
1745         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1746                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1747
1748         return 0;
1749 }
1750
1751 static int __devinit snd_cmipci_pcm_spdif_new(cmipci_t *cm, int device)
1752 {
1753         snd_pcm_t *pcm;
1754         int err;
1755
1756         err = snd_pcm_new(cm->card, cm->card->driver, device, 1, 1, &pcm);
1757         if (err < 0)
1758                 return err;
1759
1760         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cmipci_playback_spdif_ops);
1761         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cmipci_capture_spdif_ops);
1762
1763         pcm->private_data = cm;
1764         pcm->private_free = snd_cmipci_pcm_free;
1765         pcm->info_flags = 0;
1766         strcpy(pcm->name, "C-Media PCI IEC958");
1767         cm->pcm_spdif = pcm;
1768
1769         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1770                                               snd_dma_pci_data(cm->pci), 64*1024, 128*1024);
1771
1772         return 0;
1773 }
1774
1775 /*
1776  * mixer interface:
1777  * - CM8338/8738 has a compatible mixer interface with SB16, but
1778  *   lack of some elements like tone control, i/o gain and AGC.
1779  * - Access to native registers:
1780  *   - A 3D switch
1781  *   - Output mute switches
1782  */
1783
1784 static void snd_cmipci_mixer_write(cmipci_t *s, unsigned char idx, unsigned char data)
1785 {
1786         outb(idx, s->iobase + CM_REG_SB16_ADDR);
1787         outb(data, s->iobase + CM_REG_SB16_DATA);
1788 }
1789
1790 static unsigned char snd_cmipci_mixer_read(cmipci_t *s, unsigned char idx)
1791 {
1792         unsigned char v;
1793
1794         outb(idx, s->iobase + CM_REG_SB16_ADDR);
1795         v = inb(s->iobase + CM_REG_SB16_DATA);
1796         return v;
1797 }
1798
1799 /*
1800  * general mixer element
1801  */
1802 typedef struct cmipci_sb_reg {
1803         unsigned int left_reg, right_reg;
1804         unsigned int left_shift, right_shift;
1805         unsigned int mask;
1806         unsigned int invert: 1;
1807         unsigned int stereo: 1;
1808 } cmipci_sb_reg_t;
1809
1810 #define COMPOSE_SB_REG(lreg,rreg,lshift,rshift,mask,invert,stereo) \
1811  ((lreg) | ((rreg) << 8) | (lshift << 16) | (rshift << 19) | (mask << 24) | (invert << 22) | (stereo << 23))
1812
1813 #define CMIPCI_DOUBLE(xname, left_reg, right_reg, left_shift, right_shift, mask, invert, stereo) \
1814 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1815   .info = snd_cmipci_info_volume, \
1816   .get = snd_cmipci_get_volume, .put = snd_cmipci_put_volume, \
1817   .private_value = COMPOSE_SB_REG(left_reg, right_reg, left_shift, right_shift, mask, invert, stereo), \
1818 }
1819
1820 #define CMIPCI_SB_VOL_STEREO(xname,reg,shift,mask) CMIPCI_DOUBLE(xname, reg, reg+1, shift, shift, mask, 0, 1)
1821 #define CMIPCI_SB_VOL_MONO(xname,reg,shift,mask) CMIPCI_DOUBLE(xname, reg, reg, shift, shift, mask, 0, 0)
1822 #define CMIPCI_SB_SW_STEREO(xname,lshift,rshift) CMIPCI_DOUBLE(xname, SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, lshift, rshift, 1, 0, 1)
1823 #define CMIPCI_SB_SW_MONO(xname,shift) CMIPCI_DOUBLE(xname, SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, shift, shift, 1, 0, 0)
1824
1825 static void cmipci_sb_reg_decode(cmipci_sb_reg_t *r, unsigned long val)
1826 {
1827         r->left_reg = val & 0xff;
1828         r->right_reg = (val >> 8) & 0xff;
1829         r->left_shift = (val >> 16) & 0x07;
1830         r->right_shift = (val >> 19) & 0x07;
1831         r->invert = (val >> 22) & 1;
1832         r->stereo = (val >> 23) & 1;
1833         r->mask = (val >> 24) & 0xff;
1834 }
1835
1836 static int snd_cmipci_info_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
1837 {
1838         cmipci_sb_reg_t reg;
1839
1840         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1841         uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1842         uinfo->count = reg.stereo + 1;
1843         uinfo->value.integer.min = 0;
1844         uinfo->value.integer.max = reg.mask;
1845         return 0;
1846 }
1847
1848 static int snd_cmipci_get_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1849 {
1850         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
1851         cmipci_sb_reg_t reg;
1852         int val;
1853
1854         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1855         spin_lock_irq(&cm->reg_lock);
1856         val = (snd_cmipci_mixer_read(cm, reg.left_reg) >> reg.left_shift) & reg.mask;
1857         if (reg.invert)
1858                 val = reg.mask - val;
1859         ucontrol->value.integer.value[0] = val;
1860         if (reg.stereo) {
1861                 val = (snd_cmipci_mixer_read(cm, reg.right_reg) >> reg.right_shift) & reg.mask;
1862                 if (reg.invert)
1863                         val = reg.mask - val;
1864                  ucontrol->value.integer.value[1] = val;
1865         }
1866         spin_unlock_irq(&cm->reg_lock);
1867         return 0;
1868 }
1869
1870 static int snd_cmipci_put_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1871 {
1872         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
1873         cmipci_sb_reg_t reg;
1874         int change;
1875         int left, right, oleft, oright;
1876
1877         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1878         left = ucontrol->value.integer.value[0] & reg.mask;
1879         if (reg.invert)
1880                 left = reg.mask - left;
1881         left <<= reg.left_shift;
1882         if (reg.stereo) {
1883                 right = ucontrol->value.integer.value[1] & reg.mask;
1884                 if (reg.invert)
1885                         right = reg.mask - right;
1886                 right <<= reg.right_shift;
1887         } else
1888                 right = 0;
1889         spin_lock_irq(&cm->reg_lock);
1890         oleft = snd_cmipci_mixer_read(cm, reg.left_reg);
1891         left |= oleft & ~(reg.mask << reg.left_shift);
1892         change = left != oleft;
1893         if (reg.stereo) {
1894                 if (reg.left_reg != reg.right_reg) {
1895                         snd_cmipci_mixer_write(cm, reg.left_reg, left);
1896                         oright = snd_cmipci_mixer_read(cm, reg.right_reg);
1897                 } else
1898                         oright = left;
1899                 right |= oright & ~(reg.mask << reg.right_shift);
1900                 change |= right != oright;
1901                 snd_cmipci_mixer_write(cm, reg.right_reg, right);
1902         } else
1903                 snd_cmipci_mixer_write(cm, reg.left_reg, left);
1904         spin_unlock_irq(&cm->reg_lock);
1905         return change;
1906 }
1907
1908 /*
1909  * input route (left,right) -> (left,right)
1910  */
1911 #define CMIPCI_SB_INPUT_SW(xname, left_shift, right_shift) \
1912 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1913   .info = snd_cmipci_info_input_sw, \
1914   .get = snd_cmipci_get_input_sw, .put = snd_cmipci_put_input_sw, \
1915   .private_value = COMPOSE_SB_REG(SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, left_shift, right_shift, 1, 0, 1), \
1916 }
1917
1918 static int snd_cmipci_info_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
1919 {
1920         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1921         uinfo->count = 4;
1922         uinfo->value.integer.min = 0;
1923         uinfo->value.integer.max = 1;
1924         return 0;
1925 }
1926
1927 static int snd_cmipci_get_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1928 {
1929         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
1930         cmipci_sb_reg_t reg;
1931         int val1, val2;
1932
1933         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
1934         spin_lock_irq(&cm->reg_lock);
1935         val1 = snd_cmipci_mixer_read(cm, reg.left_reg);
1936         val2 = snd_cmipci_mixer_read(cm, reg.right_reg);
1937         spin_unlock_irq(&cm->reg_lock);
1938         ucontrol->value.integer.value[0] = (val1 >> reg.left_shift) & 1;
1939         ucontrol->value.integer.value[1] = (val2 >> reg.left_shift) & 1;
1940         ucontrol->value.integer.value[2] = (val1 >> reg.right_shift) & 1;
1941         ucontrol->value.integer.value[3] = (val2 >> reg.right_shift) & 1;
1942         return 0;
1943 }
1944
1945 static int snd_cmipci_put_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1946 {
1947         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
1948         cmipci_sb_reg_t 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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
2002 {
2003         cmipci_sb_reg_t reg;
2004
2005         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
2006         uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
2007         uinfo->count = reg.stereo + 1;
2008         uinfo->value.integer.min = 0;
2009         uinfo->value.integer.max = reg.mask;
2010         return 0;
2011
2012 }
2013
2014 static int snd_cmipci_get_native_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
2015 {
2016         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2017         cmipci_sb_reg_t reg;
2018         unsigned char oreg, val;
2019
2020         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
2021         spin_lock_irq(&cm->reg_lock);
2022         oreg = inb(cm->iobase + reg.left_reg);
2023         val = (oreg >> reg.left_shift) & reg.mask;
2024         if (reg.invert)
2025                 val = reg.mask - val;
2026         ucontrol->value.integer.value[0] = val;
2027         if (reg.stereo) {
2028                 val = (oreg >> reg.right_shift) & reg.mask;
2029                 if (reg.invert)
2030                         val = reg.mask - val;
2031                 ucontrol->value.integer.value[1] = val;
2032         }
2033         spin_unlock_irq(&cm->reg_lock);
2034         return 0;
2035 }
2036
2037 static int snd_cmipci_put_native_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
2038 {
2039         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2040         cmipci_sb_reg_t reg;
2041         unsigned char oreg, nreg, val;
2042
2043         cmipci_sb_reg_decode(&reg, kcontrol->private_value);
2044         spin_lock_irq(&cm->reg_lock);
2045         oreg = inb(cm->iobase + reg.left_reg);
2046         val = ucontrol->value.integer.value[0] & reg.mask;
2047         if (reg.invert)
2048                 val = reg.mask - val;
2049         nreg = oreg & ~(reg.mask << reg.left_shift);
2050         nreg |= (val << reg.left_shift);
2051         if (reg.stereo) {
2052                 val = ucontrol->value.integer.value[1] & reg.mask;
2053                 if (reg.invert)
2054                         val = reg.mask - val;
2055                 nreg &= ~(reg.mask << reg.right_shift);
2056                 nreg |= (val << reg.right_shift);
2057         }
2058         outb(nreg, cm->iobase + reg.left_reg);
2059         spin_unlock_irq(&cm->reg_lock);
2060         return (nreg != oreg);
2061 }
2062
2063 /*
2064  * special case - check mixer sensitivity
2065  */
2066 static int snd_cmipci_get_native_mixer_sensitive(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2067 {
2068         //cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2069         return snd_cmipci_get_native_mixer(kcontrol, ucontrol);
2070 }
2071
2072 static int snd_cmipci_put_native_mixer_sensitive(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2073 {
2074         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2075         if (cm->mixer_insensitive) {
2076                 /* ignored */
2077                 return 0;
2078         }
2079         return snd_cmipci_put_native_mixer(kcontrol, ucontrol);
2080 }
2081
2082
2083 static snd_kcontrol_new_t snd_cmipci_mixers[] __devinitdata = {
2084         CMIPCI_SB_VOL_STEREO("Master Playback Volume", SB_DSP4_MASTER_DEV, 3, 31),
2085         CMIPCI_MIXER_SW_MONO("3D Control - Switch", CM_REG_MIXER1, CM_X3DEN_SHIFT, 0),
2086         CMIPCI_SB_VOL_STEREO("PCM Playback Volume", SB_DSP4_PCM_DEV, 3, 31),
2087         //CMIPCI_MIXER_SW_MONO("PCM Playback Switch", CM_REG_MIXER1, CM_WSMUTE_SHIFT, 1),
2088         { /* switch with sensitivity */
2089                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2090                 .name = "PCM Playback Switch",
2091                 .info = snd_cmipci_info_native_mixer,
2092                 .get = snd_cmipci_get_native_mixer_sensitive,
2093                 .put = snd_cmipci_put_native_mixer_sensitive,
2094                 .private_value = COMPOSE_SB_REG(CM_REG_MIXER1, CM_REG_MIXER1, CM_WSMUTE_SHIFT, CM_WSMUTE_SHIFT, 1, 1, 0),
2095         },
2096         CMIPCI_MIXER_SW_STEREO("PCM Capture Switch", CM_REG_MIXER1, CM_WAVEINL_SHIFT, CM_WAVEINR_SHIFT, 0),
2097         CMIPCI_SB_VOL_STEREO("Synth Playback Volume", SB_DSP4_SYNTH_DEV, 3, 31),
2098         CMIPCI_MIXER_SW_MONO("Synth Playback Switch", CM_REG_MIXER1, CM_FMMUTE_SHIFT, 1),
2099         CMIPCI_SB_INPUT_SW("Synth Capture Route", 6, 5),
2100         CMIPCI_SB_VOL_STEREO("CD Playback Volume", SB_DSP4_CD_DEV, 3, 31),
2101         CMIPCI_SB_SW_STEREO("CD Playback Switch", 2, 1),
2102         CMIPCI_SB_INPUT_SW("CD Capture Route", 2, 1),
2103         CMIPCI_SB_VOL_STEREO("Line Playback Volume", SB_DSP4_LINE_DEV, 3, 31),
2104         CMIPCI_SB_SW_STEREO("Line Playback Switch", 4, 3),
2105         CMIPCI_SB_INPUT_SW("Line Capture Route", 4, 3),
2106         CMIPCI_SB_VOL_MONO("Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31),
2107         CMIPCI_SB_SW_MONO("Mic Playback Switch", 0),
2108         CMIPCI_DOUBLE("Mic Capture Switch", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 0, 0, 1, 0, 0),
2109         CMIPCI_SB_VOL_MONO("PC Speaker Playback Volume", SB_DSP4_SPEAKER_DEV, 6, 3),
2110         CMIPCI_MIXER_VOL_STEREO("Aux Playback Volume", CM_REG_AUX_VOL, 4, 0, 15),
2111         CMIPCI_MIXER_SW_STEREO("Aux Playback Switch", CM_REG_MIXER2, CM_VAUXLM_SHIFT, CM_VAUXRM_SHIFT, 0),
2112         CMIPCI_MIXER_SW_STEREO("Aux Capture Switch", CM_REG_MIXER2, CM_RAUXLEN_SHIFT, CM_RAUXREN_SHIFT, 0),
2113         CMIPCI_MIXER_SW_MONO("Mic Boost Playback Switch", CM_REG_MIXER2, CM_MICGAINZ_SHIFT, 1),
2114         CMIPCI_MIXER_VOL_MONO("Mic Capture Volume", CM_REG_MIXER2, CM_VADMIC_SHIFT, 7),
2115         CMIPCI_SB_VOL_MONO("Phone Playback Volume", CM_REG_EXTENT_IND, 5, 7),
2116         CMIPCI_DOUBLE("Phone Playback Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 4, 4, 1, 0, 0),
2117         CMIPCI_DOUBLE("PC Speaker Playnack Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 3, 3, 1, 0, 0),
2118         CMIPCI_DOUBLE("Mic Boost Capture Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 0, 0, 1, 0, 0),
2119 };
2120
2121 /*
2122  * other switches
2123  */
2124
2125 typedef struct snd_cmipci_switch_args {
2126         int reg;                /* register index */
2127         unsigned int mask;      /* mask bits */
2128         unsigned int mask_on;   /* mask bits to turn on */
2129         unsigned int is_byte: 1;                /* byte access? */
2130         unsigned int ac3_sensitive: 1;  /* access forbidden during non-audio operation? */
2131 } snd_cmipci_switch_args_t;
2132
2133 static int snd_cmipci_uswitch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
2134 {
2135         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2136         uinfo->count = 1;
2137         uinfo->value.integer.min = 0;
2138         uinfo->value.integer.max = 1;
2139         return 0;
2140 }
2141
2142 static int _snd_cmipci_uswitch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol, snd_cmipci_switch_args_t *args)
2143 {
2144         unsigned int val;
2145         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2146
2147         spin_lock_irq(&cm->reg_lock);
2148         if (args->ac3_sensitive && cm->mixer_insensitive) {
2149                 ucontrol->value.integer.value[0] = 0;
2150                 spin_unlock_irq(&cm->reg_lock);
2151                 return 0;
2152         }
2153         if (args->is_byte)
2154                 val = inb(cm->iobase + args->reg);
2155         else
2156                 val = snd_cmipci_read(cm, args->reg);
2157         ucontrol->value.integer.value[0] = ((val & args->mask) == args->mask_on) ? 1 : 0;
2158         spin_unlock_irq(&cm->reg_lock);
2159         return 0;
2160 }
2161
2162 static int snd_cmipci_uswitch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2163 {
2164         snd_cmipci_switch_args_t *args = (snd_cmipci_switch_args_t*)kcontrol->private_value;
2165         snd_assert(args != NULL, return -EINVAL);
2166         return _snd_cmipci_uswitch_get(kcontrol, ucontrol, args);
2167 }
2168
2169 static int _snd_cmipci_uswitch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol, snd_cmipci_switch_args_t *args)
2170 {
2171         unsigned int val;
2172         int change;
2173         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2174
2175         spin_lock_irq(&cm->reg_lock);
2176         if (args->ac3_sensitive && cm->mixer_insensitive) {
2177                 /* ignored */
2178                 spin_unlock_irq(&cm->reg_lock);
2179                 return 0;
2180         }
2181         if (args->is_byte)
2182                 val = inb(cm->iobase + args->reg);
2183         else
2184                 val = snd_cmipci_read(cm, args->reg);
2185         change = (val & args->mask) != (ucontrol->value.integer.value[0] ? args->mask : 0);
2186         if (change) {
2187                 val &= ~args->mask;
2188                 if (ucontrol->value.integer.value[0])
2189                         val |= args->mask_on;
2190                 else
2191                         val |= (args->mask & ~args->mask_on);
2192                 if (args->is_byte)
2193                         outb((unsigned char)val, cm->iobase + args->reg);
2194                 else
2195                         snd_cmipci_write(cm, args->reg, val);
2196         }
2197         spin_unlock_irq(&cm->reg_lock);
2198         return change;
2199 }
2200
2201 static int snd_cmipci_uswitch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2202 {
2203         snd_cmipci_switch_args_t *args = (snd_cmipci_switch_args_t*)kcontrol->private_value;
2204         snd_assert(args != NULL, return -EINVAL);
2205         return _snd_cmipci_uswitch_put(kcontrol, ucontrol, args);
2206 }
2207
2208 #define DEFINE_SWITCH_ARG(sname, xreg, xmask, xmask_on, xis_byte, xac3) \
2209 static snd_cmipci_switch_args_t cmipci_switch_arg_##sname = { \
2210   .reg = xreg, \
2211   .mask = xmask, \
2212   .mask_on = xmask_on, \
2213   .is_byte = xis_byte, \
2214   .ac3_sensitive = xac3, \
2215 }
2216
2217 #define DEFINE_BIT_SWITCH_ARG(sname, xreg, xmask, xis_byte, xac3) \
2218         DEFINE_SWITCH_ARG(sname, xreg, xmask, xmask, xis_byte, xac3)
2219
2220 #if 0 /* these will be controlled in pcm device */
2221 DEFINE_BIT_SWITCH_ARG(spdif_in, CM_REG_FUNCTRL1, CM_SPDF_1, 0, 0);
2222 DEFINE_BIT_SWITCH_ARG(spdif_out, CM_REG_FUNCTRL1, CM_SPDF_0, 0, 0);
2223 #endif
2224 DEFINE_BIT_SWITCH_ARG(spdif_in_sel1, CM_REG_CHFORMAT, CM_SPDIF_SELECT1, 0, 0);
2225 DEFINE_BIT_SWITCH_ARG(spdif_in_sel2, CM_REG_MISC_CTRL, CM_SPDIF_SELECT2, 0, 0);
2226 DEFINE_BIT_SWITCH_ARG(spdif_enable, CM_REG_LEGACY_CTRL, CM_ENSPDOUT, 0, 0);
2227 DEFINE_BIT_SWITCH_ARG(spdo2dac, CM_REG_FUNCTRL1, CM_SPDO2DAC, 0, 1);
2228 DEFINE_BIT_SWITCH_ARG(spdi_valid, CM_REG_MISC, CM_SPDVALID, 1, 0);
2229 DEFINE_BIT_SWITCH_ARG(spdif_copyright, CM_REG_LEGACY_CTRL, CM_SPDCOPYRHT, 0, 0);
2230 DEFINE_BIT_SWITCH_ARG(spdif_dac_out, CM_REG_LEGACY_CTRL, CM_DAC2SPDO, 0, 1);
2231 DEFINE_SWITCH_ARG(spdo_5v, CM_REG_MISC_CTRL, CM_SPDO5V, 0, 0, 0); /* inverse: 0 = 5V */
2232 // DEFINE_BIT_SWITCH_ARG(spdo_48k, CM_REG_MISC_CTRL, CM_SPDF_AC97|CM_SPDIF48K, 0, 1);
2233 DEFINE_BIT_SWITCH_ARG(spdif_loop, CM_REG_FUNCTRL1, CM_SPDFLOOP, 0, 1);
2234 DEFINE_BIT_SWITCH_ARG(spdi_monitor, CM_REG_MIXER1, CM_CDPLAY, 1, 0);
2235 /* DEFINE_BIT_SWITCH_ARG(spdi_phase, CM_REG_CHFORMAT, CM_SPDIF_INVERSE, 0, 0); */
2236 DEFINE_BIT_SWITCH_ARG(spdi_phase, CM_REG_MISC, CM_SPDIF_INVERSE, 1, 0);
2237 DEFINE_BIT_SWITCH_ARG(spdi_phase2, CM_REG_CHFORMAT, CM_SPDIF_INVERSE2, 0, 0);
2238 #if CM_CH_PLAY == 1
2239 DEFINE_SWITCH_ARG(exchange_dac, CM_REG_MISC_CTRL, CM_XCHGDAC, 0, 0, 0); /* reversed */
2240 #else
2241 DEFINE_SWITCH_ARG(exchange_dac, CM_REG_MISC_CTRL, CM_XCHGDAC, CM_XCHGDAC, 0, 0);
2242 #endif
2243 DEFINE_BIT_SWITCH_ARG(fourch, CM_REG_MISC_CTRL, CM_N4SPK3D, 0, 0);
2244 // DEFINE_BIT_SWITCH_ARG(line_rear, CM_REG_MIXER1, CM_SPK4, 1, 0);
2245 // DEFINE_BIT_SWITCH_ARG(line_bass, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS, 0, 0);
2246 // DEFINE_BIT_SWITCH_ARG(joystick, CM_REG_FUNCTRL1, CM_JYSTK_EN, 0, 0); /* now module option */
2247 DEFINE_SWITCH_ARG(modem, CM_REG_MISC_CTRL, CM_FLINKON|CM_FLINKOFF, CM_FLINKON, 0, 0);
2248
2249 #define DEFINE_SWITCH(sname, stype, sarg) \
2250 { .name = sname, \
2251   .iface = stype, \
2252   .info = snd_cmipci_uswitch_info, \
2253   .get = snd_cmipci_uswitch_get, \
2254   .put = snd_cmipci_uswitch_put, \
2255   .private_value = (unsigned long)&cmipci_switch_arg_##sarg,\
2256 }
2257
2258 #define DEFINE_CARD_SWITCH(sname, sarg) DEFINE_SWITCH(sname, SNDRV_CTL_ELEM_IFACE_CARD, sarg)
2259 #define DEFINE_MIXER_SWITCH(sname, sarg) DEFINE_SWITCH(sname, SNDRV_CTL_ELEM_IFACE_MIXER, sarg)
2260
2261
2262 /*
2263  * callbacks for spdif output switch
2264  * needs toggle two registers..
2265  */
2266 static int snd_cmipci_spdout_enable_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2267 {
2268         int changed;
2269         changed = _snd_cmipci_uswitch_get(kcontrol, ucontrol, &cmipci_switch_arg_spdif_enable);
2270         changed |= _snd_cmipci_uswitch_get(kcontrol, ucontrol, &cmipci_switch_arg_spdo2dac);
2271         return changed;
2272 }
2273
2274 static int snd_cmipci_spdout_enable_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2275 {
2276         cmipci_t *chip = snd_kcontrol_chip(kcontrol);
2277         int changed;
2278         changed = _snd_cmipci_uswitch_put(kcontrol, ucontrol, &cmipci_switch_arg_spdif_enable);
2279         changed |= _snd_cmipci_uswitch_put(kcontrol, ucontrol, &cmipci_switch_arg_spdo2dac);
2280         if (changed) {
2281                 if (ucontrol->value.integer.value[0]) {
2282                         if (chip->spdif_playback_avail)
2283                                 snd_cmipci_set_bit(chip, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
2284                 } else {
2285                         if (chip->spdif_playback_avail)
2286                                 snd_cmipci_clear_bit(chip, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
2287                 }
2288         }
2289         chip->spdif_playback_enabled = ucontrol->value.integer.value[0];
2290         return changed;
2291 }
2292
2293
2294 static int snd_cmipci_line_in_mode_info(snd_kcontrol_t *kcontrol,
2295                                         snd_ctl_elem_info_t *uinfo)
2296 {
2297         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2298         static char *texts[3] = { "Line-In", "Rear Output", "Bass Output" };
2299         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2300         uinfo->count = 1;
2301         uinfo->value.enumerated.items = cm->chip_version >= 39 ? 3 : 2;
2302         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2303                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2304         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2305         return 0;
2306 }
2307
2308 static inline unsigned int get_line_in_mode(cmipci_t *cm)
2309 {
2310         unsigned int val;
2311         if (cm->chip_version >= 39) {
2312                 val = snd_cmipci_read(cm, CM_REG_LEGACY_CTRL);
2313                 if (val & CM_LINE_AS_BASS)
2314                         return 2;
2315         }
2316         val = snd_cmipci_read_b(cm, CM_REG_MIXER1);
2317         if (val & CM_SPK4)
2318                 return 1;
2319         return 0;
2320 }
2321
2322 static int snd_cmipci_line_in_mode_get(snd_kcontrol_t *kcontrol,
2323                                        snd_ctl_elem_value_t *ucontrol)
2324 {
2325         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2326
2327         spin_lock_irq(&cm->reg_lock);
2328         ucontrol->value.enumerated.item[0] = get_line_in_mode(cm);
2329         spin_unlock_irq(&cm->reg_lock);
2330         return 0;
2331 }
2332
2333 static int snd_cmipci_line_in_mode_put(snd_kcontrol_t *kcontrol,
2334                                        snd_ctl_elem_value_t *ucontrol)
2335 {
2336         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2337         int change;
2338
2339         spin_lock_irq(&cm->reg_lock);
2340         if (ucontrol->value.enumerated.item[0] == 2)
2341                 change = snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS);
2342         else
2343                 change = snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_LINE_AS_BASS);
2344         if (ucontrol->value.enumerated.item[0] == 1)
2345                 change |= snd_cmipci_set_bit_b(cm, CM_REG_MIXER1, CM_SPK4);
2346         else
2347                 change |= snd_cmipci_clear_bit_b(cm, CM_REG_MIXER1, CM_SPK4);
2348         spin_unlock_irq(&cm->reg_lock);
2349         return change;
2350 }
2351
2352 static int snd_cmipci_mic_in_mode_info(snd_kcontrol_t *kcontrol,
2353                                        snd_ctl_elem_info_t *uinfo)
2354 {
2355         static char *texts[2] = { "Mic-In", "Center/LFE Output" };
2356         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2357         uinfo->count = 1;
2358         uinfo->value.enumerated.items = 2;
2359         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2360                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2361         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2362         return 0;
2363 }
2364
2365 static int snd_cmipci_mic_in_mode_get(snd_kcontrol_t *kcontrol,
2366                                       snd_ctl_elem_value_t *ucontrol)
2367 {
2368         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2369         /* same bit as spdi_phase */
2370         spin_lock_irq(&cm->reg_lock);
2371         ucontrol->value.enumerated.item[0] =
2372                 (snd_cmipci_read_b(cm, CM_REG_MISC) & CM_SPDIF_INVERSE) ? 1 : 0;
2373         spin_unlock_irq(&cm->reg_lock);
2374         return 0;
2375 }
2376
2377 static int snd_cmipci_mic_in_mode_put(snd_kcontrol_t *kcontrol,
2378                                       snd_ctl_elem_value_t *ucontrol)
2379 {
2380         cmipci_t *cm = snd_kcontrol_chip(kcontrol);
2381         int change;
2382
2383         spin_lock_irq(&cm->reg_lock);
2384         if (ucontrol->value.enumerated.item[0])
2385                 change = snd_cmipci_set_bit_b(cm, CM_REG_MISC, CM_SPDIF_INVERSE);
2386         else
2387                 change = snd_cmipci_clear_bit_b(cm, CM_REG_MISC, CM_SPDIF_INVERSE);
2388         spin_unlock_irq(&cm->reg_lock);
2389         return change;
2390 }
2391
2392 /* both for CM8338/8738 */
2393 static snd_kcontrol_new_t snd_cmipci_mixer_switches[] __devinitdata = {
2394         DEFINE_MIXER_SWITCH("Four Channel Mode", fourch),
2395         {
2396                 .name = "Line-In Mode",
2397                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2398                 .info = snd_cmipci_line_in_mode_info,
2399                 .get = snd_cmipci_line_in_mode_get,
2400                 .put = snd_cmipci_line_in_mode_put,
2401         },
2402 };
2403
2404 /* for non-multichannel chips */
2405 static snd_kcontrol_new_t snd_cmipci_nomulti_switch __devinitdata =
2406 DEFINE_MIXER_SWITCH("Exchange DAC", exchange_dac);
2407
2408 /* only for CM8738 */
2409 static snd_kcontrol_new_t snd_cmipci_8738_mixer_switches[] __devinitdata = {
2410 #if 0 /* controlled in pcm device */
2411         DEFINE_MIXER_SWITCH("IEC958 In Record", spdif_in),
2412         DEFINE_MIXER_SWITCH("IEC958 Out", spdif_out),
2413         DEFINE_MIXER_SWITCH("IEC958 Out To DAC", spdo2dac),
2414 #endif
2415         // DEFINE_MIXER_SWITCH("IEC958 Output Switch", spdif_enable),
2416         { .name = "IEC958 Output Switch",
2417           .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2418           .info = snd_cmipci_uswitch_info,
2419           .get = snd_cmipci_spdout_enable_get,
2420           .put = snd_cmipci_spdout_enable_put,
2421         },
2422         DEFINE_MIXER_SWITCH("IEC958 In Valid", spdi_valid),
2423         DEFINE_MIXER_SWITCH("IEC958 Copyright", spdif_copyright),
2424         DEFINE_MIXER_SWITCH("IEC958 5V", spdo_5v),
2425 //      DEFINE_MIXER_SWITCH("IEC958 In/Out 48KHz", spdo_48k),
2426         DEFINE_MIXER_SWITCH("IEC958 Loop", spdif_loop),
2427         DEFINE_MIXER_SWITCH("IEC958 In Monitor", spdi_monitor),
2428 };
2429
2430 /* only for model 033/037 */
2431 static snd_kcontrol_new_t snd_cmipci_old_mixer_switches[] __devinitdata = {
2432         DEFINE_MIXER_SWITCH("IEC958 Mix Analog", spdif_dac_out),
2433         DEFINE_MIXER_SWITCH("IEC958 In Phase Inverse", spdi_phase),
2434         DEFINE_MIXER_SWITCH("IEC958 In Select", spdif_in_sel1),
2435 };
2436
2437 /* only for model 039 or later */
2438 static snd_kcontrol_new_t snd_cmipci_extra_mixer_switches[] __devinitdata = {
2439         DEFINE_MIXER_SWITCH("IEC958 In Select", spdif_in_sel2),
2440         DEFINE_MIXER_SWITCH("IEC958 In Phase Inverse", spdi_phase2),
2441         {
2442                 .name = "Mic-In Mode",
2443                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2444                 .info = snd_cmipci_mic_in_mode_info,
2445                 .get = snd_cmipci_mic_in_mode_get,
2446                 .put = snd_cmipci_mic_in_mode_put,
2447         }
2448 };
2449
2450 /* card control switches */
2451 static snd_kcontrol_new_t snd_cmipci_control_switches[] __devinitdata = {
2452         // DEFINE_CARD_SWITCH("Joystick", joystick), /* now module option */
2453         DEFINE_CARD_SWITCH("Modem", modem),
2454 };
2455
2456
2457 static int __devinit snd_cmipci_mixer_new(cmipci_t *cm, int pcm_spdif_device)
2458 {
2459         snd_card_t *card;
2460         snd_kcontrol_new_t *sw;
2461         snd_kcontrol_t *kctl;
2462         unsigned int idx;
2463         int err;
2464
2465         snd_assert(cm != NULL && cm->card != NULL, return -EINVAL);
2466
2467         card = cm->card;
2468
2469         strcpy(card->mixername, "CMedia PCI");
2470
2471         spin_lock_irq(&cm->reg_lock);
2472         snd_cmipci_mixer_write(cm, 0x00, 0x00);         /* mixer reset */
2473         spin_unlock_irq(&cm->reg_lock);
2474
2475         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_mixers); idx++) {
2476                 if (cm->chip_version == 68) {   // 8768 has no PCM volume
2477                         if (!strcmp(snd_cmipci_mixers[idx].name,
2478                                 "PCM Playback Volume"))
2479                                 continue;
2480                 }
2481                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cmipci_mixers[idx], cm))) < 0)
2482                         return err;
2483         }
2484
2485         /* mixer switches */
2486         sw = snd_cmipci_mixer_switches;
2487         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_mixer_switches); idx++, sw++) {
2488                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2489                 if (err < 0)
2490                         return err;
2491         }
2492         if (! cm->can_multi_ch) {
2493                 err = snd_ctl_add(cm->card, snd_ctl_new1(&snd_cmipci_nomulti_switch, cm));
2494                 if (err < 0)
2495                         return err;
2496         }
2497         if (cm->device == PCI_DEVICE_ID_CMEDIA_CM8738 ||
2498             cm->device == PCI_DEVICE_ID_CMEDIA_CM8738B) {
2499                 sw = snd_cmipci_8738_mixer_switches;
2500                 for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_8738_mixer_switches); idx++, sw++) {
2501                         err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2502                         if (err < 0)
2503                                 return err;
2504                 }
2505                 if (cm->can_ac3_hw) {
2506                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_default, cm))) < 0)
2507                                 return err;
2508                         kctl->id.device = pcm_spdif_device;
2509                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_mask, cm))) < 0)
2510                                 return err;
2511                         kctl->id.device = pcm_spdif_device;
2512                         if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_cmipci_spdif_stream, cm))) < 0)
2513                                 return err;
2514                         kctl->id.device = pcm_spdif_device;
2515                 }
2516                 if (cm->chip_version <= 37) {
2517                         sw = snd_cmipci_old_mixer_switches;
2518                         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_old_mixer_switches); idx++, sw++) {
2519                                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2520                                 if (err < 0)
2521                                         return err;
2522                         }
2523                 }
2524         }
2525         if (cm->chip_version >= 39) {
2526                 sw = snd_cmipci_extra_mixer_switches;
2527                 for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_extra_mixer_switches); idx++, sw++) {
2528                         err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2529                         if (err < 0)
2530                                 return err;
2531                 }
2532         }
2533
2534         /* card switches */
2535         sw = snd_cmipci_control_switches;
2536         for (idx = 0; idx < ARRAY_SIZE(snd_cmipci_control_switches); idx++, sw++) {
2537                 err = snd_ctl_add(cm->card, snd_ctl_new1(sw, cm));
2538                 if (err < 0)
2539                         return err;
2540         }
2541
2542         for (idx = 0; idx < CM_SAVED_MIXERS; idx++) {
2543                 snd_ctl_elem_id_t id;
2544                 snd_kcontrol_t *ctl;
2545                 memset(&id, 0, sizeof(id));
2546                 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2547                 strcpy(id.name, cm_saved_mixer[idx].name);
2548                 if ((ctl = snd_ctl_find_id(cm->card, &id)) != NULL)
2549                         cm->mixer_res_ctl[idx] = ctl;
2550         }
2551
2552         return 0;
2553 }
2554
2555
2556 /*
2557  * proc interface
2558  */
2559
2560 #ifdef CONFIG_PROC_FS
2561 static void snd_cmipci_proc_read(snd_info_entry_t *entry,
2562                                  snd_info_buffer_t *buffer)
2563 {
2564         cmipci_t *cm = entry->private_data;
2565         int i;
2566
2567         snd_iprintf(buffer, "%s\n\n", cm->card->longname);
2568         for (i = 0; i < 0x40; i++) {
2569                 int v = inb(cm->iobase + i);
2570                 if (i % 4 == 0)
2571                         snd_iprintf(buffer, "%02x: ", i);
2572                 snd_iprintf(buffer, "%02x", v);
2573                 if (i % 4 == 3)
2574                         snd_iprintf(buffer, "\n");
2575                 else
2576                         snd_iprintf(buffer, " ");
2577         }
2578 }
2579
2580 static void __devinit snd_cmipci_proc_init(cmipci_t *cm)
2581 {
2582         snd_info_entry_t *entry;
2583
2584         if (! snd_card_proc_new(cm->card, "cmipci", &entry))
2585                 snd_info_set_text_ops(entry, cm, 1024, snd_cmipci_proc_read);
2586 }
2587 #else /* !CONFIG_PROC_FS */
2588 static inline void snd_cmipci_proc_init(cmipci_t *cm) {}
2589 #endif
2590
2591
2592 static struct pci_device_id snd_cmipci_ids[] = {
2593         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2594         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2595         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2596         {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2597         {PCI_VENDOR_ID_AL, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2598         {0,},
2599 };
2600
2601
2602 /*
2603  * check chip version and capabilities
2604  * driver name is modified according to the chip model
2605  */
2606 static void __devinit query_chip(cmipci_t *cm)
2607 {
2608         unsigned int detect;
2609
2610         /* check reg 0Ch, bit 24-31 */
2611         detect = snd_cmipci_read(cm, CM_REG_INT_HLDCLR) & CM_CHIP_MASK2;
2612         if (! detect) {
2613                 /* check reg 08h, bit 24-28 */
2614                 detect = snd_cmipci_read(cm, CM_REG_CHFORMAT) & CM_CHIP_MASK1;
2615                 if (! detect) {
2616                         cm->chip_version = 33;
2617                         cm->max_channels = 2;
2618                         if (cm->do_soft_ac3)
2619                                 cm->can_ac3_sw = 1;
2620                         else
2621                                 cm->can_ac3_hw = 1;
2622                         cm->has_dual_dac = 1;
2623                 } else {
2624                         cm->chip_version = 37;
2625                         cm->max_channels = 2;
2626                         cm->can_ac3_hw = 1;
2627                         cm->has_dual_dac = 1;
2628                 }
2629         } else {
2630                 /* check reg 0Ch, bit 26 */
2631                 if (detect & CM_CHIP_8768) {
2632                         cm->chip_version = 68;
2633                         cm->max_channels = 8;
2634                         cm->can_ac3_hw = 1;
2635                         cm->has_dual_dac = 1;
2636                         cm->can_multi_ch = 1;
2637                 } else if (detect & CM_CHIP_055) {
2638                         cm->chip_version = 55;
2639                         cm->max_channels = 6;
2640                         cm->can_ac3_hw = 1;
2641                         cm->has_dual_dac = 1;
2642                         cm->can_multi_ch = 1;
2643                 } else if (detect & CM_CHIP_039) {
2644                         cm->chip_version = 39;
2645                         if (detect & CM_CHIP_039_6CH) /* 4 or 6 channels */
2646                                 cm->max_channels = 6;
2647                         else
2648                                 cm->max_channels = 4;
2649                         cm->can_ac3_hw = 1;
2650                         cm->has_dual_dac = 1;
2651                         cm->can_multi_ch = 1;
2652                 } else {
2653                         printk(KERN_ERR "chip %x version not supported\n", detect);
2654                 }
2655         }
2656 }
2657
2658 #ifdef SUPPORT_JOYSTICK
2659 static int __devinit snd_cmipci_create_gameport(cmipci_t *cm, int dev)
2660 {
2661         static int ports[] = { 0x201, 0x200, 0 }; /* FIXME: majority is 0x201? */
2662         struct gameport *gp;
2663         struct resource *r = NULL;
2664         int i, io_port = 0;
2665
2666         if (joystick_port[dev] == 0)
2667                 return -ENODEV;
2668
2669         if (joystick_port[dev] == 1) { /* auto-detect */
2670                 for (i = 0; ports[i]; i++) {
2671                         io_port = ports[i];
2672                         r = request_region(io_port, 1, "CMIPCI gameport");
2673                         if (r)
2674                                 break;
2675                 }
2676         } else {
2677                 io_port = joystick_port[dev];
2678                 r = request_region(io_port, 1, "CMIPCI gameport");
2679         }
2680
2681         if (!r) {
2682                 printk(KERN_WARNING "cmipci: cannot reserve joystick ports\n");
2683                 return -EBUSY;
2684         }
2685
2686         cm->gameport = gp = gameport_allocate_port();
2687         if (!gp) {
2688                 printk(KERN_ERR "cmipci: cannot allocate memory for gameport\n");
2689                 release_resource(r);
2690                 kfree_nocheck(r);
2691                 return -ENOMEM;
2692         }
2693         gameport_set_name(gp, "C-Media Gameport");
2694         gameport_set_phys(gp, "pci%s/gameport0", pci_name(cm->pci));
2695         gameport_set_dev_parent(gp, &cm->pci->dev);
2696         gp->io = io_port;
2697         gameport_set_port_data(gp, r);
2698
2699         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
2700
2701         gameport_register_port(cm->gameport);
2702
2703         return 0;
2704 }
2705
2706 static void snd_cmipci_free_gameport(cmipci_t *cm)
2707 {
2708         if (cm->gameport) {
2709                 struct resource *r = gameport_get_port_data(cm->gameport);
2710
2711                 gameport_unregister_port(cm->gameport);
2712                 cm->gameport = NULL;
2713
2714                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
2715                 release_resource(r);
2716                 kfree_nocheck(r);
2717         }
2718 }
2719 #else
2720 static inline int snd_cmipci_create_gameport(cmipci_t *cm, int dev) { return -ENOSYS; }
2721 static inline void snd_cmipci_free_gameport(cmipci_t *cm) { }
2722 #endif
2723
2724 static int snd_cmipci_free(cmipci_t *cm)
2725 {
2726         if (cm->irq >= 0) {
2727                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2728                 snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT);
2729                 snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0);  /* disable ints */
2730                 snd_cmipci_ch_reset(cm, CM_CH_PLAY);
2731                 snd_cmipci_ch_reset(cm, CM_CH_CAPT);
2732                 snd_cmipci_write(cm, CM_REG_FUNCTRL0, 0); /* disable channels */
2733                 snd_cmipci_write(cm, CM_REG_FUNCTRL1, 0);
2734
2735                 /* reset mixer */
2736                 snd_cmipci_mixer_write(cm, 0, 0);
2737
2738                 synchronize_irq(cm->irq);
2739
2740                 free_irq(cm->irq, (void *)cm);
2741         }
2742
2743         snd_cmipci_free_gameport(cm);
2744         pci_release_regions(cm->pci);
2745         pci_disable_device(cm->pci);
2746         kfree(cm);
2747         return 0;
2748 }
2749
2750 static int snd_cmipci_dev_free(snd_device_t *device)
2751 {
2752         cmipci_t *cm = device->device_data;
2753         return snd_cmipci_free(cm);
2754 }
2755
2756 static int __devinit snd_cmipci_create(snd_card_t *card, struct pci_dev *pci,
2757                                        int dev, cmipci_t **rcmipci)
2758 {
2759         cmipci_t *cm;
2760         int err;
2761         static snd_device_ops_t ops = {
2762                 .dev_free =     snd_cmipci_dev_free,
2763         };
2764         unsigned int val = 0;
2765         long iomidi = mpu_port[dev];
2766         long iosynth = fm_port[dev];
2767         int pcm_index, pcm_spdif_index;
2768         static struct pci_device_id intel_82437vx[] = {
2769                 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX) },
2770                 { },
2771         };
2772
2773         *rcmipci = NULL;
2774
2775         if ((err = pci_enable_device(pci)) < 0)
2776                 return err;
2777
2778         cm = kzalloc(sizeof(*cm), GFP_KERNEL);
2779         if (cm == NULL) {
2780                 pci_disable_device(pci);
2781                 return -ENOMEM;
2782         }
2783
2784         spin_lock_init(&cm->reg_lock);
2785         init_MUTEX(&cm->open_mutex);
2786         cm->device = pci->device;
2787         cm->card = card;
2788         cm->pci = pci;
2789         cm->irq = -1;
2790         cm->channel[0].ch = 0;
2791         cm->channel[1].ch = 1;
2792         cm->channel[0].is_dac = cm->channel[1].is_dac = 1; /* dual DAC mode */
2793
2794         if ((err = pci_request_regions(pci, card->driver)) < 0) {
2795                 kfree(cm);
2796                 pci_disable_device(pci);
2797                 return err;
2798         }
2799         cm->iobase = pci_resource_start(pci, 0);
2800
2801         if (request_irq(pci->irq, snd_cmipci_interrupt, SA_INTERRUPT|SA_SHIRQ, card->driver, (void *)cm)) {
2802                 snd_printk("unable to grab IRQ %d\n", pci->irq);
2803                 snd_cmipci_free(cm);
2804                 return -EBUSY;
2805         }
2806         cm->irq = pci->irq;
2807
2808         pci_set_master(cm->pci);
2809
2810         /*
2811          * check chip version, max channels and capabilities
2812          */
2813
2814         cm->chip_version = 0;
2815         cm->max_channels = 2;
2816         cm->do_soft_ac3 = soft_ac3[dev];
2817
2818         if (pci->device != PCI_DEVICE_ID_CMEDIA_CM8338A &&
2819             pci->device != PCI_DEVICE_ID_CMEDIA_CM8338B)
2820                 query_chip(cm);
2821         /* added -MCx suffix for chip supporting multi-channels */
2822         if (cm->can_multi_ch)
2823                 sprintf(cm->card->driver + strlen(cm->card->driver),
2824                         "-MC%d", cm->max_channels);
2825         else if (cm->can_ac3_sw)
2826                 strcpy(cm->card->driver + strlen(cm->card->driver), "-SWIEC");
2827
2828         cm->dig_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
2829         cm->dig_pcm_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
2830
2831 #if CM_CH_PLAY == 1
2832         cm->ctrl = CM_CHADC0;   /* default FUNCNTRL0 */
2833 #else
2834         cm->ctrl = CM_CHADC1;   /* default FUNCNTRL0 */
2835 #endif
2836
2837         /* initialize codec registers */
2838         snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0);     /* disable ints */
2839         snd_cmipci_ch_reset(cm, CM_CH_PLAY);
2840         snd_cmipci_ch_reset(cm, CM_CH_CAPT);
2841         snd_cmipci_write(cm, CM_REG_FUNCTRL0, 0);       /* disable channels */
2842         snd_cmipci_write(cm, CM_REG_FUNCTRL1, 0);
2843
2844         snd_cmipci_write(cm, CM_REG_CHFORMAT, 0);
2845         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENDBDAC|CM_N4SPK3D);
2846 #if CM_CH_PLAY == 1
2847         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
2848 #else
2849         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC);
2850 #endif
2851         /* Set Bus Master Request */
2852         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_BREQ);
2853
2854         /* Assume TX and compatible chip set (Autodetection required for VX chip sets) */
2855         switch (pci->device) {
2856         case PCI_DEVICE_ID_CMEDIA_CM8738:
2857         case PCI_DEVICE_ID_CMEDIA_CM8738B:
2858                 if (!pci_dev_present(intel_82437vx))
2859                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_TXVX);
2860                 break;
2861         default:
2862                 break;
2863         }
2864
2865         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, cm, &ops)) < 0) {
2866                 snd_cmipci_free(cm);
2867                 return err;
2868         }
2869
2870         /* set MPU address */
2871         switch (iomidi) {
2872         case 0x320: val = CM_VMPU_320; break;
2873         case 0x310: val = CM_VMPU_310; break;
2874         case 0x300: val = CM_VMPU_300; break;
2875         case 0x330: val = CM_VMPU_330; break;
2876         default:
2877                 iomidi = 0; break;
2878         }
2879         if (iomidi > 0) {
2880                 snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
2881                 /* enable UART */
2882                 snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_UART_EN);
2883         }
2884
2885         /* set FM address */
2886         val = snd_cmipci_read(cm, CM_REG_LEGACY_CTRL) & ~CM_FMSEL_MASK;
2887         switch (iosynth) {
2888         case 0x3E8: val |= CM_FMSEL_3E8; break;
2889         case 0x3E0: val |= CM_FMSEL_3E0; break;
2890         case 0x3C8: val |= CM_FMSEL_3C8; break;
2891         case 0x388: val |= CM_FMSEL_388; break;
2892         default:
2893                 iosynth = 0; break;
2894         }
2895         if (iosynth > 0) {
2896                 snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
2897                 /* enable FM */
2898                 snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2899
2900                 if (snd_opl3_create(card, iosynth, iosynth + 2,
2901                                     OPL3_HW_OPL3, 0, &cm->opl3) < 0) {
2902                         printk(KERN_ERR "cmipci: no OPL device at 0x%lx, skipping...\n", iosynth);
2903                         iosynth = 0;
2904                 } else {
2905                         if ((err = snd_opl3_hwdep_new(cm->opl3, 0, 1, &cm->opl3hwdep)) < 0) {
2906                                 printk(KERN_ERR "cmipci: cannot create OPL3 hwdep\n");
2907                                 return err;
2908                         }
2909                 }
2910         }
2911         if (! iosynth) {
2912                 /* disable FM */
2913                 snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val & ~CM_FMSEL_MASK);
2914                 snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
2915         }
2916
2917         /* reset mixer */
2918         snd_cmipci_mixer_write(cm, 0, 0);
2919
2920         snd_cmipci_proc_init(cm);
2921
2922         /* create pcm devices */
2923         pcm_index = pcm_spdif_index = 0;
2924         if ((err = snd_cmipci_pcm_new(cm, pcm_index)) < 0)
2925                 return err;
2926         pcm_index++;
2927         if (cm->has_dual_dac) {
2928                 if ((err = snd_cmipci_pcm2_new(cm, pcm_index)) < 0)
2929                         return err;
2930                 pcm_index++;
2931         }
2932         if (cm->can_ac3_hw || cm->can_ac3_sw) {
2933                 pcm_spdif_index = pcm_index;
2934                 if ((err = snd_cmipci_pcm_spdif_new(cm, pcm_index)) < 0)
2935                         return err;
2936         }
2937
2938         /* create mixer interface & switches */
2939         if ((err = snd_cmipci_mixer_new(cm, pcm_spdif_index)) < 0)
2940                 return err;
2941
2942         if (iomidi > 0) {
2943                 if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI,
2944                                                iomidi, 0,
2945                                                cm->irq, 0, &cm->rmidi)) < 0) {
2946                         printk(KERN_ERR "cmipci: no UART401 device at 0x%lx\n", iomidi);
2947                 }
2948         }
2949
2950 #ifdef USE_VAR48KRATE
2951         for (val = 0; val < ARRAY_SIZE(rates); val++)
2952                 snd_cmipci_set_pll(cm, rates[val], val);
2953
2954         /*
2955          * (Re-)Enable external switch spdo_48k
2956          */
2957         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K|CM_SPDF_AC97);
2958 #endif /* USE_VAR48KRATE */
2959
2960         if (snd_cmipci_create_gameport(cm, dev) < 0)
2961                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
2962
2963         snd_card_set_dev(card, &pci->dev);
2964
2965         *rcmipci = cm;
2966         return 0;
2967 }
2968
2969 /*
2970  */
2971
2972 MODULE_DEVICE_TABLE(pci, snd_cmipci_ids);
2973
2974 static int __devinit snd_cmipci_probe(struct pci_dev *pci,
2975                                       const struct pci_device_id *pci_id)
2976 {
2977         static int dev;
2978         snd_card_t *card;
2979         cmipci_t *cm;
2980         int err;
2981
2982         if (dev >= SNDRV_CARDS)
2983                 return -ENODEV;
2984         if (! enable[dev]) {
2985                 dev++;
2986                 return -ENOENT;
2987         }
2988
2989         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2990         if (card == NULL)
2991                 return -ENOMEM;
2992
2993         switch (pci->device) {
2994         case PCI_DEVICE_ID_CMEDIA_CM8738:
2995         case PCI_DEVICE_ID_CMEDIA_CM8738B:
2996                 strcpy(card->driver, "CMI8738");
2997                 break;
2998         case PCI_DEVICE_ID_CMEDIA_CM8338A:
2999         case PCI_DEVICE_ID_CMEDIA_CM8338B:
3000                 strcpy(card->driver, "CMI8338");
3001                 break;
3002         default:
3003                 strcpy(card->driver, "CMIPCI");
3004                 break;
3005         }
3006
3007         if ((err = snd_cmipci_create(card, pci, dev, &cm)) < 0) {
3008                 snd_card_free(card);
3009                 return err;
3010         }
3011
3012         sprintf(card->shortname, "C-Media PCI %s", card->driver);
3013         sprintf(card->longname, "%s (model %d) at 0x%lx, irq %i",
3014                 card->shortname,
3015                 cm->chip_version,
3016                 cm->iobase,
3017                 cm->irq);
3018
3019         //snd_printd("%s is detected\n", card->longname);
3020
3021         if ((err = snd_card_register(card)) < 0) {
3022                 snd_card_free(card);
3023                 return err;
3024         }
3025         pci_set_drvdata(pci, card);
3026         dev++;
3027         return 0;
3028
3029 }
3030
3031 static void __devexit snd_cmipci_remove(struct pci_dev *pci)
3032 {
3033         snd_card_free(pci_get_drvdata(pci));
3034         pci_set_drvdata(pci, NULL);
3035 }
3036
3037
3038 static struct pci_driver driver = {
3039         .name = "C-Media PCI",
3040         .owner = THIS_MODULE,
3041         .id_table = snd_cmipci_ids,
3042         .probe = snd_cmipci_probe,
3043         .remove = __devexit_p(snd_cmipci_remove),
3044 };
3045
3046 static int __init alsa_card_cmipci_init(void)
3047 {
3048         return pci_register_driver(&driver);
3049 }
3050
3051 static void __exit alsa_card_cmipci_exit(void)
3052 {
3053         pci_unregister_driver(&driver);
3054 }
3055
3056 module_init(alsa_card_cmipci_init)
3057 module_exit(alsa_card_cmipci_exit)