include/linux/ac97_codec.h

   1 #ifndef _AC97_CODEC_H_
   2 #define _AC97_CODEC_H_
   3
   4 #include <linux/types.h>
   5 #include <linux/soundcard.h>
   6
   7 /* AC97 1.0 */
   8 #define  AC97_RESET               0x0000      //
   9 #define  AC97_MASTER_VOL_STEREO   0x0002      // Line Out
  10 #define  AC97_HEADPHONE_VOL       0x0004      //
  11 #define  AC97_MASTER_VOL_MONO     0x0006      // TAD Output
  12 #define  AC97_MASTER_TONE         0x0008      //
  13 #define  AC97_PCBEEP_VOL          0x000a      // none
  14 #define  AC97_PHONE_VOL           0x000c      // TAD Input (mono)
  15 #define  AC97_MIC_VOL             0x000e      // MIC Input (mono)
  16 #define  AC97_LINEIN_VOL          0x0010      // Line Input (stereo)
  17 #define  AC97_CD_VOL              0x0012      // CD Input (stereo)
  18 #define  AC97_VIDEO_VOL           0x0014      // none
  19 #define  AC97_AUX_VOL             0x0016      // Aux Input (stereo)
  20 #define  AC97_PCMOUT_VOL          0x0018      // Wave Output (stereo)
  21 #define  AC97_RECORD_SELECT       0x001a      //
  22 #define  AC97_RECORD_GAIN         0x001c
  23 #define  AC97_RECORD_GAIN_MIC     0x001e
  24 #define  AC97_GENERAL_PURPOSE     0x0020
  25 #define  AC97_3D_CONTROL          0x0022
  26 #define  AC97_MODEM_RATE          0x0024
  27 #define  AC97_POWER_CONTROL       0x0026
  28
  29 /* AC'97 2.0 */
  30 #define AC97_EXTENDED_ID          0x0028       /* Extended Audio ID */
  31 #define AC97_EXTENDED_STATUS      0x002A       /* Extended Audio Status */
  32 #define AC97_PCM_FRONT_DAC_RATE   0x002C       /* PCM Front DAC Rate */
  33 #define AC97_PCM_SURR_DAC_RATE    0x002E       /* PCM Surround DAC Rate */
  34 #define AC97_PCM_LFE_DAC_RATE     0x0030       /* PCM LFE DAC Rate */
  35 #define AC97_PCM_LR_ADC_RATE      0x0032       /* PCM LR ADC Rate */
  36 #define AC97_PCM_MIC_ADC_RATE     0x0034       /* PCM MIC ADC Rate */
  37 #define AC97_CENTER_LFE_MASTER    0x0036       /* Center + LFE Master Volume */
  38 #define AC97_SURROUND_MASTER      0x0038       /* Surround (Rear) Master Volume */
  39 #define AC97_RESERVED_3A          0x003A       /* Reserved in AC '97 < 2.2 */
  40
  41 /* AC'97 2.2 */
  42 #define AC97_SPDIF_CONTROL        0x003A       /* S/PDIF Control */
  43
  44 /* range 0x3c-0x58 - MODEM */
  45 #define AC97_EXTENDED_MODEM_ID    0x003C
  46 #define AC97_EXTEND_MODEM_STAT    0x003E
  47 #define AC97_LINE1_RATE           0x0040
  48 #define AC97_LINE2_RATE           0x0042
  49 #define AC97_HANDSET_RATE         0x0044
  50 #define AC97_LINE1_LEVEL          0x0046
  51 #define AC97_LINE2_LEVEL          0x0048
  52 #define AC97_HANDSET_LEVEL        0x004A
  53 #define AC97_GPIO_CONFIG          0x004C
  54 #define AC97_GPIO_POLARITY        0x004E
  55 #define AC97_GPIO_STICKY          0x0050
  56 #define AC97_GPIO_WAKE_UP         0x0052
  57 #define AC97_GPIO_STATUS          0x0054
  58 #define AC97_MISC_MODEM_STAT      0x0056
  59 #define AC97_RESERVED_58          0x0058
  60
  61 /* registers 0x005a - 0x007a are vendor reserved */
  62
  63 #define AC97_VENDOR_ID1           0x007c
  64 #define AC97_VENDOR_ID2           0x007e
  65
  66 /* volume control bit defines */
  67 #define AC97_MUTE                 0x8000
  68 #define AC97_MICBOOST             0x0040
  69 #define AC97_LEFTVOL              0x3f00
  70 #define AC97_RIGHTVOL             0x003f
  71
  72 /* record mux defines */
  73 #define AC97_RECMUX_MIC           0x0000
  74 #define AC97_RECMUX_CD            0x0101
  75 #define AC97_RECMUX_VIDEO         0x0202
  76 #define AC97_RECMUX_AUX           0x0303
  77 #define AC97_RECMUX_LINE          0x0404
  78 #define AC97_RECMUX_STEREO_MIX    0x0505
  79 #define AC97_RECMUX_MONO_MIX      0x0606
  80 #define AC97_RECMUX_PHONE         0x0707
  81
  82 /* general purpose register bit defines */
  83 #define AC97_GP_LPBK              0x0080       /* Loopback mode */
  84 #define AC97_GP_MS                0x0100       /* Mic Select 0=Mic1, 1=Mic2 */
  85 #define AC97_GP_MIX               0x0200       /* Mono output select 0=Mix, 1=Mic */
  86 #define AC97_GP_RLBK              0x0400       /* Remote Loopback - Modem line codec */
  87 #define AC97_GP_LLBK              0x0800       /* Local Loopback - Modem Line codec */
  88 #define AC97_GP_LD                0x1000       /* Loudness 1=on */
  89 #define AC97_GP_3D                0x2000       /* 3D Enhancement 1=on */
  90 #define AC97_GP_ST                0x4000       /* Stereo Enhancement 1=on */
  91 #define AC97_GP_POP               0x8000       /* Pcm Out Path, 0=pre 3D, 1=post 3D */
  92
  93 /* extended audio status and control bit defines */
  94 #define AC97_EA_VRA               0x0001       /* Variable bit rate enable bit */
  95 #define AC97_EA_DRA               0x0002       /* Double-rate audio enable bit */
  96 #define AC97_EA_SPDIF             0x0004       /* S/PDIF Enable bit */
  97 #define AC97_EA_VRM               0x0008       /* Variable bit rate for MIC enable bit */
  98 #define AC97_EA_CDAC              0x0040       /* PCM Center DAC is ready (Read only) */
  99 #define AC97_EA_SDAC              0x0040       /* PCM Surround DACs are ready (Read only) */
 100 #define AC97_EA_LDAC              0x0080       /* PCM LFE DAC is ready (Read only) */
 101 #define AC97_EA_MDAC              0x0100       /* MIC ADC is ready (Read only) */
 102 #define AC97_EA_SPCV              0x0400       /* S/PDIF configuration valid (Read only) */
 103 #define AC97_EA_PRI               0x0800       /* Turns the PCM Center DAC off */
 104 #define AC97_EA_PRJ               0x1000       /* Turns the PCM Surround DACs off */
 105 #define AC97_EA_PRK               0x2000       /* Turns the PCM LFE DAC off */
 106 #define AC97_EA_PRL               0x4000       /* Turns the MIC ADC off */
 107 #define AC97_EA_SLOT_MASK         0xffcf       /* Mask for slot assignment bits */
 108 #define AC97_EA_SPSA_3_4          0x0000       /* Slot assigned to 3 & 4 */
 109 #define AC97_EA_SPSA_7_8          0x0010       /* Slot assigned to 7 & 8 */
 110 #define AC97_EA_SPSA_6_9          0x0020       /* Slot assigned to 6 & 9 */
 111 #define AC97_EA_SPSA_10_11        0x0030       /* Slot assigned to 10 & 11 */
 112
 113 /* S/PDIF control bit defines */
 114 #define AC97_SC_PRO               0x0001       /* Professional status */
 115 #define AC97_SC_NAUDIO            0x0002       /* Non audio stream */
 116 #define AC97_SC_COPY              0x0004       /* Copyright status */
 117 #define AC97_SC_PRE               0x0008       /* Preemphasis status */
 118 #define AC97_SC_CC_MASK           0x07f0       /* Category Code mask */
 119 #define AC97_SC_L                 0x0800       /* Generation Level status */
 120 #define AC97_SC_SPSR_MASK         0xcfff       /* S/PDIF Sample Rate bits */
 121 #define AC97_SC_SPSR_44K          0x0000       /* Use 44.1kHz Sample rate */
 122 #define AC97_SC_SPSR_48K          0x2000       /* Use 48kHz Sample rate */
 123 #define AC97_SC_SPSR_32K          0x3000       /* Use 32kHz Sample rate */
 124 #define AC97_SC_DRS               0x4000       /* Double Rate S/PDIF */
 125 #define AC97_SC_V                 0x8000       /* Validity status */
 126
 127 /* powerdown control and status bit defines */
 128
 129 /* status */
 130 #define AC97_PWR_MDM              0x0010       /* Modem section ready */
 131 #define AC97_PWR_REF              0x0008       /* Vref nominal */
 132 #define AC97_PWR_ANL              0x0004       /* Analog section ready */
 133 #define AC97_PWR_DAC              0x0002       /* DAC section ready */
 134 #define AC97_PWR_ADC              0x0001       /* ADC section ready */
 135
 136 /* control */
 137 #define AC97_PWR_PR0              0x0100       /* ADC and Mux powerdown */
 138 #define AC97_PWR_PR1              0x0200       /* DAC powerdown */
 139 #define AC97_PWR_PR2              0x0400       /* Output mixer powerdown (Vref on) */
 140 #define AC97_PWR_PR3              0x0800       /* Output mixer powerdown (Vref off) */
 141 #define AC97_PWR_PR4              0x1000       /* AC-link powerdown */
 142 #define AC97_PWR_PR5              0x2000       /* Internal Clk disable */
 143 #define AC97_PWR_PR6              0x4000       /* HP amp powerdown */
 144 #define AC97_PWR_PR7              0x8000       /* Modem off - if supported */
 145
 146 /* extended audio ID register bit defines */
 147 #define AC97_EXTID_VRA            0x0001
 148 #define AC97_EXTID_DRA            0x0002
 149 #define AC97_EXTID_SPDIF          0x0004
 150 #define AC97_EXTID_VRM            0x0008
 151 #define AC97_EXTID_DSA0           0x0010
 152 #define AC97_EXTID_DSA1           0x0020
 153 #define AC97_EXTID_CDAC           0x0040
 154 #define AC97_EXTID_SDAC           0x0080
 155 #define AC97_EXTID_LDAC           0x0100
 156 #define AC97_EXTID_AMAP           0x0200
 157 #define AC97_EXTID_REV0           0x0400
 158 #define AC97_EXTID_REV1           0x0800
 159 #define AC97_EXTID_ID0            0x4000
 160 #define AC97_EXTID_ID1            0x8000
 161
 162 /* extended status register bit defines */
 163 #define AC97_EXTSTAT_VRA          0x0001
 164 #define AC97_EXTSTAT_DRA          0x0002
 165 #define AC97_EXTSTAT_SPDIF        0x0004
 166 #define AC97_EXTSTAT_VRM          0x0008
 167 #define AC97_EXTSTAT_SPSA0        0x0010
 168 #define AC97_EXTSTAT_SPSA1        0x0020
 169 #define AC97_EXTSTAT_CDAC         0x0040
 170 #define AC97_EXTSTAT_SDAC         0x0080
 171 #define AC97_EXTSTAT_LDAC         0x0100
 172 #define AC97_EXTSTAT_MADC         0x0200
 173 #define AC97_EXTSTAT_SPCV         0x0400
 174 #define AC97_EXTSTAT_PRI          0x0800
 175 #define AC97_EXTSTAT_PRJ          0x1000
 176 #define AC97_EXTSTAT_PRK          0x2000
 177 #define AC97_EXTSTAT_PRL          0x4000
 178
 179 /* useful power states */
 180 #define AC97_PWR_D0               0x0000      /* everything on */
 181 #define AC97_PWR_D1              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR4
 182 #define AC97_PWR_D2              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4
 183 #define AC97_PWR_D3              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4
 184 #define AC97_PWR_ANLOFF          AC97_PWR_PR2|AC97_PWR_PR3  /* analog section off */
 185
 186 /* Total number of defined registers.  */
 187 #define AC97_REG_CNT 64
 188
 189
 190 /* OSS interface to the ac97s.. */
 191 #define AC97_STEREO_MASK (SOUND_MASK_VOLUME|SOUND_MASK_PCM|\
 192         SOUND_MASK_LINE|SOUND_MASK_CD|\
 193         SOUND_MASK_ALTPCM|SOUND_MASK_IGAIN|\
 194         SOUND_MASK_LINE1|SOUND_MASK_VIDEO)
 195
 196 #define AC97_SUPPORTED_MASK (AC97_STEREO_MASK | \
 197         SOUND_MASK_BASS|SOUND_MASK_TREBLE|\
 198         SOUND_MASK_SPEAKER|SOUND_MASK_MIC|\
 199         SOUND_MASK_PHONEIN|SOUND_MASK_PHONEOUT)
 200
 201 #define AC97_RECORD_MASK (SOUND_MASK_MIC|\
 202         SOUND_MASK_CD|SOUND_MASK_IGAIN|SOUND_MASK_VIDEO|\
 203         SOUND_MASK_LINE1| SOUND_MASK_LINE|\
 204         SOUND_MASK_PHONEIN)
 205
 206 /* original check is not good enough in case FOO is greater than
 207  * SOUND_MIXER_NRDEVICES because the supported_mixers has exactly
 208  * SOUND_MIXER_NRDEVICES elements.
 209  * before matching the given mixer against the bitmask in supported_mixers we
 210  * check if mixer number exceeds maximum allowed size which is as mentioned
 211  * above SOUND_MIXER_NRDEVICES */
 212 #define supported_mixer(CODEC,FOO) ((FOO >= 0) && \
 213                                     (FOO < SOUND_MIXER_NRDEVICES) && \
 214                                     (CODEC)->supported_mixers & (1<<FOO) )
 215
 216 struct ac97_codec {
 217         /* Linked list of codecs */
 218         struct list_head list;
 219
 220         /* AC97 controller connected with */
 221         void *private_data;
 222
 223         char *name;
 224         int id;
 225         int dev_mixer;
 226         int type;
 227         u32 model;
 228
 229         int modem:1;
 230
 231         struct ac97_ops *codec_ops;
 232
 233         /* controller specific lower leverl ac97 accessing routines.
 234            must be re-entrant safe */
 235         u16  (*codec_read)  (struct ac97_codec *codec, u8 reg);
 236         void (*codec_write) (struct ac97_codec *codec, u8 reg, u16 val);
 237
 238         /* Wait for codec-ready.  Ok to sleep here.  */
 239         void  (*codec_wait)  (struct ac97_codec *codec);
 240
 241         /* callback used by helper drivers for interesting ac97 setups */
 242         void  (*codec_unregister) (struct ac97_codec *codec);
 243
 244         struct ac97_driver *driver;
 245         void *driver_private;   /* Private data for the driver */
 246
 247         spinlock_t lock;
 248
 249         /* OSS mixer masks */
 250         int modcnt;
 251         int supported_mixers;
 252         int stereo_mixers;
 253         int record_sources;
 254
 255         /* Property flags */
 256         int flags;
 257
 258         int bit_resolution;
 259
 260         /* OSS mixer interface */
 261         int  (*read_mixer) (struct ac97_codec *codec, int oss_channel);
 262         void (*write_mixer)(struct ac97_codec *codec, int oss_channel,
 263                             unsigned int left, unsigned int right);
 264         int  (*recmask_io) (struct ac97_codec *codec, int rw, int mask);
 265         int  (*mixer_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);
 266
 267         /* saved OSS mixer states */
 268         unsigned int mixer_state[SOUND_MIXER_NRDEVICES];
 269
 270         /* Software Modem interface */
 271         int  (*modem_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);
 272 };
 273
 274 /*
 275  *      Operation structures for each known AC97 chip
 276  */
 277
 278 struct ac97_ops
 279 {
 280         /* Initialise */
 281         int (*init)(struct ac97_codec *c);
 282         /* Amplifier control */
 283         int (*amplifier)(struct ac97_codec *codec, int on);
 284         /* Digital mode control */
 285         int (*digital)(struct ac97_codec *codec, int slots, int rate, int mode);
 286 #define AUDIO_DIGITAL           0x8000
 287 #define AUDIO_PRO               0x4000
 288 #define AUDIO_DRS               0x2000
 289 #define AUDIO_CCMASK            0x003F
 290
 291 #define AC97_DELUDED_MODEM      1       /* Audio codec reports its a modem */
 292 #define AC97_NO_PCM_VOLUME      2       /* Volume control is missing       */
 293 };
 294
 295 extern int ac97_read_proc (char *page_out, char **start, off_t off,
 296                            int count, int *eof, void *data);
 297 extern int ac97_probe_codec(struct ac97_codec *);
 298 extern unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate);
 299 extern unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate);
 300 extern int ac97_save_state(struct ac97_codec *codec);
 301 extern int ac97_restore_state(struct ac97_codec *codec);
 302
 303 extern struct ac97_codec *ac97_alloc_codec(void);
 304 extern void ac97_release_codec(struct ac97_codec *codec);
 305
 306 struct ac97_driver {
 307         struct list_head list;
 308         char *name;
 309         u32 codec_id;
 310         u32 codec_mask;
 311         int (*probe) (struct ac97_codec *codec, struct ac97_driver *driver);
 312         void (*remove) (struct ac97_codec *codec, struct ac97_driver *driver);
 313 };
 314
 315 extern int ac97_register_driver(struct ac97_driver *driver);
 316 extern void ac97_unregister_driver(struct ac97_driver *driver);
 317
 318 #endif /* _AC97_CODEC_H_ */