sound/pci/ice1712/ice1712.h

   1 #ifndef __SOUND_ICE1712_H
   2 #define __SOUND_ICE1712_H
   3
   4 /*
   5  *   ALSA driver for ICEnsemble ICE1712 (Envy24)
   6  *
   7  *      Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  *
  23  */
  24
  25 #include <sound/control.h>
  26 #include <sound/ac97_codec.h>
  27 #include <sound/rawmidi.h>
  28 #include <sound/i2c.h>
  29 #include <sound/ak4xxx-adda.h>
  30 #include <sound/ak4114.h>
  31 #include <sound/pt2258.h>
  32 #include <sound/pcm.h>
  33 #include <sound/mpu401.h>
  34
  35
  36 /*
  37  *  Direct registers
  38  */
  39
  40 #define ICEREG(ice, x) ((ice)->port + ICE1712_REG_##x)
  41
  42 #define ICE1712_REG_CONTROL             0x00    /* byte */
  43 #define   ICE1712_RESET                 0x80    /* reset whole chip */
  44 #define   ICE1712_SERR_LEVEL            0x04    /* SERR# level otherwise edge */
  45 #define   ICE1712_NATIVE                0x01    /* native mode otherwise SB */
  46 #define ICE1712_REG_IRQMASK             0x01    /* byte */
  47 #define   ICE1712_IRQ_MPU1              0x80
  48 #define   ICE1712_IRQ_TIMER             0x40
  49 #define   ICE1712_IRQ_MPU2              0x20
  50 #define   ICE1712_IRQ_PROPCM            0x10
  51 #define   ICE1712_IRQ_FM                0x08    /* FM/MIDI - legacy */
  52 #define   ICE1712_IRQ_PBKDS             0x04    /* playback DS channels */
  53 #define   ICE1712_IRQ_CONCAP            0x02    /* consumer capture */
  54 #define   ICE1712_IRQ_CONPBK            0x01    /* consumer playback */
  55 #define ICE1712_REG_IRQSTAT             0x02    /* byte */
  56 /* look to ICE1712_IRQ_* */
  57 #define ICE1712_REG_INDEX               0x03    /* byte - indirect CCIxx regs */
  58 #define ICE1712_REG_DATA                0x04    /* byte - indirect CCIxx regs */
  59 #define ICE1712_REG_NMI_STAT1           0x05    /* byte */
  60 #define ICE1712_REG_NMI_DATA            0x06    /* byte */
  61 #define ICE1712_REG_NMI_INDEX           0x07    /* byte */
  62 #define ICE1712_REG_AC97_INDEX          0x08    /* byte */
  63 #define ICE1712_REG_AC97_CMD            0x09    /* byte */
  64 #define   ICE1712_AC97_COLD             0x80    /* cold reset */
  65 #define   ICE1712_AC97_WARM             0x40    /* warm reset */
  66 #define   ICE1712_AC97_WRITE            0x20    /* W: write, R: write in progress */
  67 #define   ICE1712_AC97_READ             0x10    /* W: read, R: read in progress */
  68 #define   ICE1712_AC97_READY            0x08    /* codec ready status bit */
  69 #define   ICE1712_AC97_PBK_VSR          0x02    /* playback VSR */
  70 #define   ICE1712_AC97_CAP_VSR          0x01    /* capture VSR */
  71 #define ICE1712_REG_AC97_DATA           0x0a    /* word (little endian) */
  72 #define ICE1712_REG_MPU1_CTRL           0x0c    /* byte */
  73 #define ICE1712_REG_MPU1_DATA           0x0d    /* byte */
  74 #define ICE1712_REG_I2C_DEV_ADDR        0x10    /* byte */
  75 #define   ICE1712_I2C_WRITE             0x01    /* write direction */
  76 #define ICE1712_REG_I2C_BYTE_ADDR       0x11    /* byte */
  77 #define ICE1712_REG_I2C_DATA            0x12    /* byte */
  78 #define ICE1712_REG_I2C_CTRL            0x13    /* byte */
  79 #define   ICE1712_I2C_EEPROM            0x80    /* EEPROM exists */
  80 #define   ICE1712_I2C_BUSY              0x01    /* busy bit */
  81 #define ICE1712_REG_CONCAP_ADDR         0x14    /* dword - consumer capture */
  82 #define ICE1712_REG_CONCAP_COUNT        0x18    /* word - current/base count */
  83 #define ICE1712_REG_SERR_SHADOW         0x1b    /* byte */
  84 #define ICE1712_REG_MPU2_CTRL           0x1c    /* byte */
  85 #define ICE1712_REG_MPU2_DATA           0x1d    /* byte */
  86 #define ICE1712_REG_TIMER               0x1e    /* word */
  87
  88 /*
  89  *  Indirect registers
  90  */
  91
  92 #define ICE1712_IREG_PBK_COUNT_LO       0x00
  93 #define ICE1712_IREG_PBK_COUNT_HI       0x01
  94 #define ICE1712_IREG_PBK_CTRL           0x02
  95 #define ICE1712_IREG_PBK_LEFT           0x03    /* left volume */
  96 #define ICE1712_IREG_PBK_RIGHT          0x04    /* right volume */
  97 #define ICE1712_IREG_PBK_SOFT           0x05    /* soft volume */
  98 #define ICE1712_IREG_PBK_RATE_LO        0x06
  99 #define ICE1712_IREG_PBK_RATE_MID       0x07
 100 #define ICE1712_IREG_PBK_RATE_HI        0x08
 101 #define ICE1712_IREG_CAP_COUNT_LO       0x10
 102 #define ICE1712_IREG_CAP_COUNT_HI       0x11
 103 #define ICE1712_IREG_CAP_CTRL           0x12
 104 #define ICE1712_IREG_GPIO_DATA          0x20
 105 #define ICE1712_IREG_GPIO_WRITE_MASK    0x21
 106 #define ICE1712_IREG_GPIO_DIRECTION     0x22
 107 #define ICE1712_IREG_CONSUMER_POWERDOWN 0x30
 108 #define ICE1712_IREG_PRO_POWERDOWN      0x31
 109
 110 /*
 111  *  Consumer section direct DMA registers
 112  */
 113
 114 #define ICEDS(ice, x) ((ice)->dmapath_port + ICE1712_DS_##x)
 115
 116 #define ICE1712_DS_INTMASK              0x00    /* word - interrupt mask */
 117 #define ICE1712_DS_INTSTAT              0x02    /* word - interrupt status */
 118 #define ICE1712_DS_DATA                 0x04    /* dword - channel data */
 119 #define ICE1712_DS_INDEX                0x08    /* dword - channel index */
 120
 121 /*
 122  *  Consumer section channel registers
 123  */
 124
 125 #define ICE1712_DSC_ADDR0               0x00    /* dword - base address 0 */
 126 #define ICE1712_DSC_COUNT0              0x01    /* word - count 0 */
 127 #define ICE1712_DSC_ADDR1               0x02    /* dword - base address 1 */
 128 #define ICE1712_DSC_COUNT1              0x03    /* word - count 1 */
 129 #define ICE1712_DSC_CONTROL             0x04    /* byte - control & status */
 130 #define   ICE1712_BUFFER1               0x80    /* buffer1 is active */
 131 #define   ICE1712_BUFFER1_AUTO          0x40    /* buffer1 auto init */
 132 #define   ICE1712_BUFFER0_AUTO          0x20    /* buffer0 auto init */
 133 #define   ICE1712_FLUSH                 0x10    /* flush FIFO */
 134 #define   ICE1712_STEREO                0x08    /* stereo */
 135 #define   ICE1712_16BIT                 0x04    /* 16-bit data */
 136 #define   ICE1712_PAUSE                 0x02    /* pause */
 137 #define   ICE1712_START                 0x01    /* start */
 138 #define ICE1712_DSC_RATE                0x05    /* dword - rate */
 139 #define ICE1712_DSC_VOLUME              0x06    /* word - volume control */
 140
 141 /*
 142  *  Professional multi-track direct control registers
 143  */
 144
 145 #define ICEMT(ice, x) ((ice)->profi_port + ICE1712_MT_##x)
 146
 147 #define ICE1712_MT_IRQ                  0x00    /* byte - interrupt mask */
 148 #define   ICE1712_MULTI_CAPTURE         0x80    /* capture IRQ */
 149 #define   ICE1712_MULTI_PLAYBACK        0x40    /* playback IRQ */
 150 #define   ICE1712_MULTI_CAPSTATUS       0x02    /* capture IRQ status */
 151 #define   ICE1712_MULTI_PBKSTATUS       0x01    /* playback IRQ status */
 152 #define ICE1712_MT_RATE                 0x01    /* byte - sampling rate select */
 153 #define   ICE1712_SPDIF_MASTER          0x10    /* S/PDIF input is master clock */
 154 #define ICE1712_MT_I2S_FORMAT           0x02    /* byte - I2S data format */
 155 #define ICE1712_MT_AC97_INDEX           0x04    /* byte - AC'97 index */
 156 #define ICE1712_MT_AC97_CMD             0x05    /* byte - AC'97 command & status */
 157 /* look to ICE1712_AC97_* */
 158 #define ICE1712_MT_AC97_DATA            0x06    /* word - AC'97 data */
 159 #define ICE1712_MT_PLAYBACK_ADDR        0x10    /* dword - playback address */
 160 #define ICE1712_MT_PLAYBACK_SIZE        0x14    /* word - playback size */
 161 #define ICE1712_MT_PLAYBACK_COUNT       0x16    /* word - playback count */
 162 #define ICE1712_MT_PLAYBACK_CONTROL     0x18    /* byte - control */
 163 #define   ICE1712_CAPTURE_START_SHADOW  0x04    /* capture start */
 164 #define   ICE1712_PLAYBACK_PAUSE        0x02    /* playback pause */
 165 #define   ICE1712_PLAYBACK_START        0x01    /* playback start */
 166 #define ICE1712_MT_CAPTURE_ADDR         0x20    /* dword - capture address */
 167 #define ICE1712_MT_CAPTURE_SIZE         0x24    /* word - capture size */
 168 #define ICE1712_MT_CAPTURE_COUNT        0x26    /* word - capture count */
 169 #define ICE1712_MT_CAPTURE_CONTROL      0x28    /* byte - control */
 170 #define   ICE1712_CAPTURE_START         0x01    /* capture start */
 171 #define ICE1712_MT_ROUTE_PSDOUT03       0x30    /* word */
 172 #define ICE1712_MT_ROUTE_SPDOUT         0x32    /* word */
 173 #define ICE1712_MT_ROUTE_CAPTURE        0x34    /* dword */
 174 #define ICE1712_MT_MONITOR_VOLUME       0x38    /* word */
 175 #define ICE1712_MT_MONITOR_INDEX        0x3a    /* byte */
 176 #define ICE1712_MT_MONITOR_RATE         0x3b    /* byte */
 177 #define ICE1712_MT_MONITOR_ROUTECTRL    0x3c    /* byte */
 178 #define   ICE1712_ROUTE_AC97            0x01    /* route digital mixer output to AC'97 */
 179 #define ICE1712_MT_MONITOR_PEAKINDEX    0x3e    /* byte */
 180 #define ICE1712_MT_MONITOR_PEAKDATA     0x3f    /* byte */
 181
 182 /*
 183  *  Codec configuration bits
 184  */
 185
 186 /* PCI[60] System Configuration */
 187 #define ICE1712_CFG_CLOCK       0xc0
 188 #define   ICE1712_CFG_CLOCK512  0x00    /* 22.5692Mhz, 44.1kHz*512 */
 189 #define   ICE1712_CFG_CLOCK384  0x40    /* 16.9344Mhz, 44.1kHz*384 */
 190 #define   ICE1712_CFG_EXT       0x80    /* external clock */
 191 #define ICE1712_CFG_2xMPU401    0x20    /* two MPU401 UARTs */
 192 #define ICE1712_CFG_NO_CON_AC97 0x10    /* consumer AC'97 codec is not present */
 193 #define ICE1712_CFG_ADC_MASK    0x0c    /* one, two, three, four stereo ADCs */
 194 #define ICE1712_CFG_DAC_MASK    0x03    /* one, two, three, four stereo DACs */
 195 /* PCI[61] AC-Link Configuration */
 196 #define ICE1712_CFG_PRO_I2S     0x80    /* multitrack converter: I2S or AC'97 */
 197 #define ICE1712_CFG_AC97_PACKED 0x01    /* split or packed mode - AC'97 */
 198 /* PCI[62] I2S Features */
 199 #define ICE1712_CFG_I2S_VOLUME  0x80    /* volume/mute capability */
 200 #define ICE1712_CFG_I2S_96KHZ   0x40    /* supports 96kHz sampling */
 201 #define ICE1712_CFG_I2S_RESMASK 0x30    /* resolution mask, 16,18,20,24-bit */
 202 #define ICE1712_CFG_I2S_OTHER   0x0f    /* other I2S IDs */
 203 /* PCI[63] S/PDIF Configuration */
 204 #define ICE1712_CFG_I2S_CHIPID  0xfc    /* I2S chip ID */
 205 #define ICE1712_CFG_SPDIF_IN    0x02    /* S/PDIF input is present */
 206 #define ICE1712_CFG_SPDIF_OUT   0x01    /* S/PDIF output is present */
 207
 208 /*
 209  * DMA mode values
 210  * identical with DMA_XXX on i386 architecture.
 211  */
 212 #define ICE1712_DMA_MODE_WRITE          0x48
 213 #define ICE1712_DMA_AUTOINIT            0x10
 214
 215
 216 /*
 217  *
 218  */
 219
 220 struct snd_ice1712;
 221
 222 struct snd_ice1712_eeprom {
 223         unsigned int subvendor; /* PCI[2c-2f] */
 224         unsigned char size;     /* size of EEPROM image in bytes */
 225         unsigned char version;  /* must be 1 (or 2 for vt1724) */
 226         unsigned char data[32];
 227         unsigned int gpiomask;
 228         unsigned int gpiostate;
 229         unsigned int gpiodir;
 230 };
 231
 232 enum {
 233         ICE_EEP1_CODEC = 0,     /* 06 */
 234         ICE_EEP1_ACLINK,        /* 07 */
 235         ICE_EEP1_I2SID,         /* 08 */
 236         ICE_EEP1_SPDIF,         /* 09 */
 237         ICE_EEP1_GPIO_MASK,     /* 0a */
 238         ICE_EEP1_GPIO_STATE,    /* 0b */
 239         ICE_EEP1_GPIO_DIR,      /* 0c */
 240         ICE_EEP1_AC97_MAIN_LO,  /* 0d */
 241         ICE_EEP1_AC97_MAIN_HI,  /* 0e */
 242         ICE_EEP1_AC97_PCM_LO,   /* 0f */
 243         ICE_EEP1_AC97_PCM_HI,   /* 10 */
 244         ICE_EEP1_AC97_REC_LO,   /* 11 */
 245         ICE_EEP1_AC97_REC_HI,   /* 12 */
 246         ICE_EEP1_AC97_RECSRC,   /* 13 */
 247         ICE_EEP1_DAC_ID,        /* 14 */
 248         ICE_EEP1_DAC_ID1,
 249         ICE_EEP1_DAC_ID2,
 250         ICE_EEP1_DAC_ID3,
 251         ICE_EEP1_ADC_ID,        /* 18 */
 252         ICE_EEP1_ADC_ID1,
 253         ICE_EEP1_ADC_ID2,
 254         ICE_EEP1_ADC_ID3
 255 };
 256
 257 #define ice_has_con_ac97(ice)   (!((ice)->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_NO_CON_AC97))
 258
 259
 260 struct snd_ak4xxx_private {
 261         unsigned int cif: 1;            /* CIF mode */
 262         unsigned char caddr;            /* C0 and C1 bits */
 263         unsigned int data_mask;         /* DATA gpio bit */
 264         unsigned int clk_mask;          /* CLK gpio bit */
 265         unsigned int cs_mask;           /* bit mask for select/deselect address */
 266         unsigned int cs_addr;           /* bits to select address */
 267         unsigned int cs_none;           /* bits to deselect address */
 268         unsigned int add_flags;         /* additional bits at init */
 269         unsigned int mask_flags;        /* total mask bits */
 270         struct snd_akm4xxx_ops {
 271                 void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate);
 272         } ops;
 273 };
 274
 275 struct snd_ice1712_spdif {
 276         unsigned char cs8403_bits;
 277         unsigned char cs8403_stream_bits;
 278         struct snd_kcontrol *stream_ctl;
 279
 280         struct snd_ice1712_spdif_ops {
 281                 void (*open)(struct snd_ice1712 *, struct snd_pcm_substream *);
 282                 void (*setup_rate)(struct snd_ice1712 *, int rate);
 283                 void (*close)(struct snd_ice1712 *, struct snd_pcm_substream *);
 284                 void (*default_get)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
 285                 int (*default_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
 286                 void (*stream_get)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
 287                 int (*stream_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
 288         } ops;
 289 };
 290
 291
 292 struct snd_ice1712 {
 293         unsigned long conp_dma_size;
 294         unsigned long conc_dma_size;
 295         unsigned long prop_dma_size;
 296         unsigned long proc_dma_size;
 297         int irq;
 298
 299         unsigned long port;
 300         unsigned long ddma_port;
 301         unsigned long dmapath_port;
 302         unsigned long profi_port;
 303
 304         struct pci_dev *pci;
 305         struct snd_card *card;
 306         struct snd_pcm *pcm;
 307         struct snd_pcm *pcm_ds;
 308         struct snd_pcm *pcm_pro;
 309         struct snd_pcm_substream *playback_con_substream;
 310         struct snd_pcm_substream *playback_con_substream_ds[6];
 311         struct snd_pcm_substream *capture_con_substream;
 312         struct snd_pcm_substream *playback_pro_substream;
 313         struct snd_pcm_substream *capture_pro_substream;
 314         unsigned int playback_pro_size;
 315         unsigned int capture_pro_size;
 316         unsigned int playback_con_virt_addr[6];
 317         unsigned int playback_con_active_buf[6];
 318         unsigned int capture_con_virt_addr;
 319         unsigned int ac97_ext_id;
 320         struct snd_ac97 *ac97;
 321         struct snd_rawmidi *rmidi[2];
 322
 323         spinlock_t reg_lock;
 324         struct snd_info_entry *proc_entry;
 325
 326         struct snd_ice1712_eeprom eeprom;
 327
 328         unsigned int pro_volumes[20];
 329         unsigned int omni: 1;           /* Delta Omni I/O */
 330         unsigned int dxr_enable: 1;     /* Terratec DXR enable for DMX6FIRE */
 331         unsigned int vt1724: 1;
 332         unsigned int vt1720: 1;
 333         unsigned int has_spdif: 1;      /* VT1720/4 - has SPDIF I/O */
 334         unsigned int force_pdma4: 1;    /* VT1720/4 - PDMA4 as non-spdif */
 335         unsigned int force_rdma1: 1;    /* VT1720/4 - RDMA1 as non-spdif */
 336         unsigned int num_total_dacs;    /* total DACs */
 337         unsigned int num_total_adcs;    /* total ADCs */
 338         unsigned int cur_rate;          /* current rate */
 339
 340         struct mutex open_mutex;
 341         struct snd_pcm_substream *pcm_reserved[4];
 342         struct snd_pcm_hw_constraint_list *hw_rates; /* card-specific rate constraints */
 343
 344         unsigned int akm_codecs;
 345         struct snd_akm4xxx *akm;
 346         struct snd_ice1712_spdif spdif;
 347
 348         struct mutex i2c_mutex; /* I2C mutex for ICE1724 registers */
 349         struct snd_i2c_bus *i2c;                /* I2C bus */
 350         struct snd_i2c_device *cs8427;  /* CS8427 I2C device */
 351         unsigned int cs8427_timeout;    /* CS8427 reset timeout in HZ/100 */
 352
 353         struct ice1712_gpio {
 354                 unsigned int direction;         /* current direction bits */
 355                 unsigned int write_mask;        /* current mask bits */
 356                 unsigned int saved[2];          /* for ewx_i2c */
 357                 /* operators */
 358                 void (*set_mask)(struct snd_ice1712 *ice, unsigned int data);
 359                 void (*set_dir)(struct snd_ice1712 *ice, unsigned int data);
 360                 void (*set_data)(struct snd_ice1712 *ice, unsigned int data);
 361                 unsigned int (*get_data)(struct snd_ice1712 *ice);
 362                 /* misc operators - move to another place? */
 363                 void (*set_pro_rate)(struct snd_ice1712 *ice, unsigned int rate);
 364                 void (*i2s_mclk_changed)(struct snd_ice1712 *ice);
 365         } gpio;
 366         struct mutex gpio_mutex;
 367
 368         /* other board-specific data */
 369         void *spec;
 370 };
 371
 372
 373 /*
 374  * gpio access functions
 375  */
 376 static inline void snd_ice1712_gpio_set_dir(struct snd_ice1712 *ice, unsigned int bits)
 377 {
 378         ice->gpio.set_dir(ice, bits);
 379 }
 380
 381 static inline void snd_ice1712_gpio_set_mask(struct snd_ice1712 *ice, unsigned int bits)
 382 {
 383         ice->gpio.set_mask(ice, bits);
 384 }
 385
 386 static inline void snd_ice1712_gpio_write(struct snd_ice1712 *ice, unsigned int val)
 387 {
 388         ice->gpio.set_data(ice, val);
 389 }
 390
 391 static inline unsigned int snd_ice1712_gpio_read(struct snd_ice1712 *ice)
 392 {
 393         return ice->gpio.get_data(ice);
 394 }
 395
 396 /*
 397  * save and restore gpio status
 398  * The access to gpio will be protected by mutex, so don't forget to
 399  * restore!
 400  */
 401 static inline void snd_ice1712_save_gpio_status(struct snd_ice1712 *ice)
 402 {
 403         mutex_lock(&ice->gpio_mutex);
 404         ice->gpio.saved[0] = ice->gpio.direction;
 405         ice->gpio.saved[1] = ice->gpio.write_mask;
 406 }
 407
 408 static inline void snd_ice1712_restore_gpio_status(struct snd_ice1712 *ice)
 409 {
 410         ice->gpio.set_dir(ice, ice->gpio.saved[0]);
 411         ice->gpio.set_mask(ice, ice->gpio.saved[1]);
 412         ice->gpio.direction = ice->gpio.saved[0];
 413         ice->gpio.write_mask = ice->gpio.saved[1];
 414         mutex_unlock(&ice->gpio_mutex);
 415 }
 416
 417 /* for bit controls */
 418 #define ICE1712_GPIO(xiface, xname, xindex, mask, invert, xaccess) \
 419 { .iface = xiface, .name = xname, .access = xaccess, .info = snd_ctl_boolean_mono_info, \
 420   .get = snd_ice1712_gpio_get, .put = snd_ice1712_gpio_put, \
 421   .private_value = mask | (invert << 24) }
 422
 423 int snd_ice1712_gpio_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
 424 int snd_ice1712_gpio_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
 425
 426 /*
 427  * set gpio direction, write mask and data
 428  */
 429 static inline void snd_ice1712_gpio_write_bits(struct snd_ice1712 *ice,
 430                                                unsigned int mask, unsigned int bits)
 431 {
 432         ice->gpio.direction |= mask;
 433         snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
 434         snd_ice1712_gpio_set_mask(ice, ~mask);
 435         snd_ice1712_gpio_write(ice, mask & bits);
 436 }
 437
 438 static inline int snd_ice1712_gpio_read_bits(struct snd_ice1712 *ice,
 439                                               unsigned int mask)
 440 {
 441         ice->gpio.direction &= ~mask;
 442         snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
 443         return  (snd_ice1712_gpio_read(ice) & mask);
 444 }
 445
 446 int snd_ice1712_spdif_build_controls(struct snd_ice1712 *ice);
 447
 448 int snd_ice1712_akm4xxx_init(struct snd_akm4xxx *ak, const struct snd_akm4xxx *template,
 449                              const struct snd_ak4xxx_private *priv, struct snd_ice1712 *ice);
 450 void snd_ice1712_akm4xxx_free(struct snd_ice1712 *ice);
 451 int snd_ice1712_akm4xxx_build_controls(struct snd_ice1712 *ice);
 452
 453 int snd_ice1712_init_cs8427(struct snd_ice1712 *ice, int addr);
 454
 455 static inline void snd_ice1712_write(struct snd_ice1712 * ice, u8 addr, u8 data)
 456 {
 457         outb(addr, ICEREG(ice, INDEX));
 458         outb(data, ICEREG(ice, DATA));
 459 }
 460
 461 static inline u8 snd_ice1712_read(struct snd_ice1712 * ice, u8 addr)
 462 {
 463         outb(addr, ICEREG(ice, INDEX));
 464         return inb(ICEREG(ice, DATA));
 465 }
 466
 467
 468 /*
 469  * entry pointer
 470  */
 471
 472 struct snd_ice1712_card_info {
 473         unsigned int subvendor;
 474         char *name;
 475         char *model;
 476         char *driver;
 477         int (*chip_init)(struct snd_ice1712 *);
 478         int (*build_controls)(struct snd_ice1712 *);
 479         unsigned int no_mpu401: 1;
 480         unsigned int mpu401_1_info_flags;
 481         unsigned int mpu401_2_info_flags;
 482         const char *mpu401_1_name;
 483         const char *mpu401_2_name;
 484         const unsigned int eeprom_size;
 485         const unsigned char *eeprom_data;
 486 };
 487
 488
 489 #endif /* __SOUND_ICE1712_H */