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   1 #ifndef _TAS_COMMON_H_
   2 #define _TAS_COMMON_H_
   3
   4 #include <linux/i2c.h>
   5 #include <linux/soundcard.h>
   6 #include <asm/string.h>
   7
   8 #define I2C_DRIVERID_TAS_BASE   (0xFEBA)
   9
  10 #define SET_4_20(shadow, offset, val)                        \
  11         do {                                                 \
  12                 (shadow)[(offset)+0] = ((val) >> 16) & 0xff; \
  13                 (shadow)[(offset)+1] = ((val) >> 8)  & 0xff; \
  14                 (shadow)[(offset)+2] = ((val) >> 0)  & 0xff; \
  15         } while (0)
  16
  17 #define GET_4_20(shadow, offset)                             \
  18         (((u_int)((shadow)[(offset)+0]) << 16) |             \
  19          ((u_int)((shadow)[(offset)+1]) <<  8) |             \
  20          ((u_int)((shadow)[(offset)+2]) <<  0))
  21
  22
  23 #define TAS_BIQUAD_FAST_LOAD 0x01
  24
  25 #define TAS_DRCE_ENABLE           0x01
  26 #define TAS_DRCE_ABOVE_RATIO      0x02
  27 #define TAS_DRCE_BELOW_RATIO      0x04
  28 #define TAS_DRCE_THRESHOLD        0x08
  29 #define TAS_DRCE_ENERGY           0x10
  30 #define TAS_DRCE_ATTACK           0x20
  31 #define TAS_DRCE_DECAY            0x40
  32
  33 #define TAS_DRCE_ALL              0x7f
  34
  35
  36 #define TAS_OUTPUT_HEADPHONES     0x00
  37 #define TAS_OUTPUT_INTERNAL_SPKR  0x01
  38 #define TAS_OUTPUT_EXTERNAL_SPKR  0x02
  39
  40
  41 union tas_biquad_t {
  42         struct {
  43                 int b0,b1,b2,a1,a2;
  44         } coeff;
  45         int buf[5];
  46 };
  47
  48 struct tas_biquad_ctrl_t {
  49         u_int channel:4;
  50         u_int filter:4;
  51
  52         union tas_biquad_t data;
  53 };
  54
  55 struct tas_biquad_ctrl_list_t {
  56         int flags;
  57         int filter_count;
  58         struct tas_biquad_ctrl_t biquads[0];
  59 };
  60
  61 struct tas_ratio_t {
  62         unsigned short val;    /* 8.8                        */
  63         unsigned short expand; /* 0 = compress, !0 = expand. */
  64 };
  65
  66 struct tas_drce_t {
  67         unsigned short enable;
  68         struct tas_ratio_t above;
  69         struct tas_ratio_t below;
  70         short threshold;       /* dB,       8.8 signed    */
  71         unsigned short energy; /* seconds,  4.12 unsigned */
  72         unsigned short attack; /* seconds,  4.12 unsigned */
  73         unsigned short decay;  /* seconds,  4.12 unsigned */
  74 };
  75
  76 struct tas_drce_ctrl_t {
  77         uint flags;
  78
  79         struct tas_drce_t data;
  80 };
  81
  82 struct tas_gain_t
  83 {
  84   unsigned int *master;
  85   unsigned int *treble;
  86   unsigned int *bass;
  87   unsigned int *mixer;
  88 };
  89
  90 typedef char tas_shadow_t[0x45];
  91
  92 struct tas_data_t
  93 {
  94         struct i2c_client *client;
  95         tas_shadow_t *shadow;
  96         uint mixer[SOUND_MIXER_NRDEVICES];
  97 };
  98
  99 typedef int (*tas_hook_init_t)(struct i2c_client *);
 100 typedef int (*tas_hook_post_init_t)(struct tas_data_t *);
 101 typedef void (*tas_hook_uninit_t)(struct tas_data_t *);
 102
 103 typedef int (*tas_hook_get_mixer_level_t)(struct tas_data_t *,int,uint *);
 104 typedef int (*tas_hook_set_mixer_level_t)(struct tas_data_t *,int,uint);
 105
 106 typedef int (*tas_hook_enter_sleep_t)(struct tas_data_t *);
 107 typedef int (*tas_hook_leave_sleep_t)(struct tas_data_t *);
 108
 109 typedef int (*tas_hook_supported_mixers_t)(struct tas_data_t *);
 110 typedef int (*tas_hook_mixer_is_stereo_t)(struct tas_data_t *,int);
 111 typedef int (*tas_hook_stereo_mixers_t)(struct tas_data_t *);
 112
 113 typedef int (*tas_hook_output_device_change_t)(struct tas_data_t *,int,int,int);
 114 typedef int (*tas_hook_device_ioctl_t)(struct tas_data_t *,u_int,u_long);
 115
 116 struct tas_driver_hooks_t {
 117         /*
 118          * All hardware initialisation must be performed in
 119          * post_init(), as tas_dmasound_init() does a hardware reset.
 120          *
 121          * init() is called before tas_dmasound_init() so that
 122          * ouput_device_change() is always called after i2c driver
 123          * initialisation. The implication is that
 124          * output_device_change() must cope with the fact that it
 125          * may be called before post_init().
 126          */
 127
 128         tas_hook_init_t                   init;
 129         tas_hook_post_init_t              post_init;
 130         tas_hook_uninit_t                 uninit;
 131
 132         tas_hook_get_mixer_level_t        get_mixer_level;
 133         tas_hook_set_mixer_level_t        set_mixer_level;
 134
 135         tas_hook_enter_sleep_t            enter_sleep;
 136         tas_hook_leave_sleep_t            leave_sleep;
 137
 138         tas_hook_supported_mixers_t       supported_mixers;
 139         tas_hook_mixer_is_stereo_t        mixer_is_stereo;
 140         tas_hook_stereo_mixers_t          stereo_mixers;
 141
 142         tas_hook_output_device_change_t   output_device_change;
 143         tas_hook_device_ioctl_t           device_ioctl;
 144 };
 145
 146 enum tas_write_mode_t {
 147         WRITE_HW     = 0x01,
 148         WRITE_SHADOW = 0x02,
 149         WRITE_NORMAL = 0x03,
 150         FORCE_WRITE  = 0x04
 151 };
 152
 153 static inline uint
 154 tas_mono_to_stereo(uint mono)
 155 {
 156         mono &=0xff;
 157         return mono | (mono<<8);
 158 }
 159
 160 /*
 161  * Todo: make these functions a bit more efficient !
 162  */
 163 static inline int
 164 tas_write_register(     struct tas_data_t *self,
 165                         uint reg_num,
 166                         uint reg_width,
 167                         char *data,
 168                         uint write_mode)
 169 {
 170         int rc;
 171
 172         if (reg_width==0 || data==NULL || self==NULL)
 173                 return -EINVAL;
 174         if (!(write_mode & FORCE_WRITE) &&
 175             !memcmp(data,self->shadow[reg_num],reg_width))
 176                 return 0;
 177
 178         if (write_mode & WRITE_SHADOW)
 179                 memcpy(self->shadow[reg_num],data,reg_width);
 180         if (write_mode & WRITE_HW) {
 181                 rc=i2c_smbus_write_block_data(self->client,
 182                                               reg_num,
 183                                               reg_width,
 184                                               data);
 185                 if (rc < 0) {
 186                         printk("tas: I2C block write failed \n");
 187                         return rc;
 188                 }
 189         }
 190         return 0;
 191 }
 192
 193 static inline int
 194 tas_sync_register(      struct tas_data_t *self,
 195                         uint reg_num,
 196                         uint reg_width)
 197 {
 198         int rc;
 199
 200         if (reg_width==0 || self==NULL)
 201                 return -EINVAL;
 202         rc=i2c_smbus_write_block_data(self->client,
 203                                       reg_num,
 204                                       reg_width,
 205                                       self->shadow[reg_num]);
 206         if (rc < 0) {
 207                 printk("tas: I2C block write failed \n");
 208                 return rc;
 209         }
 210         return 0;
 211 }
 212
 213 static inline int
 214 tas_write_byte_register(        struct tas_data_t *self,
 215                                 uint reg_num,
 216                                 char data,
 217                                 uint write_mode)
 218 {
 219         if (self==NULL)
 220                 return -1;
 221         if (!(write_mode & FORCE_WRITE) && data != self->shadow[reg_num][0])
 222                 return 0;
 223         if (write_mode & WRITE_SHADOW)
 224                 self->shadow[reg_num][0]=data;
 225         if (write_mode & WRITE_HW) {
 226                 if (i2c_smbus_write_byte_data(self->client, reg_num, data) < 0) {
 227                         printk("tas: I2C byte write failed \n");
 228                         return -1;
 229                 }
 230         }
 231         return 0;
 232 }
 233
 234 static inline int
 235 tas_sync_byte_register( struct tas_data_t *self,
 236                         uint reg_num,
 237                         uint reg_width)
 238 {
 239         if (reg_width==0 || self==NULL)
 240                 return -1;
 241         if (i2c_smbus_write_byte_data(
 242             self->client, reg_num, self->shadow[reg_num][0]) < 0) {
 243                 printk("tas: I2C byte write failed \n");
 244                 return -1;
 245         }
 246         return 0;
 247 }
 248
 249 static inline int
 250 tas_read_register(      struct tas_data_t *self,
 251                         uint reg_num,
 252                         uint reg_width,
 253                         char *data)
 254 {
 255         if (reg_width==0 || data==NULL || self==NULL)
 256                 return -1;
 257         memcpy(data,self->shadow[reg_num],reg_width);
 258         return 0;
 259 }
 260
 261 extern int tas_register_driver(struct tas_driver_hooks_t *hooks);
 262
 263 extern int tas_get_mixer_level(int mixer,uint *level);
 264 extern int tas_set_mixer_level(int mixer,uint level);
 265 extern int tas_enter_sleep(void);
 266 extern int tas_leave_sleep(void);
 267 extern int tas_supported_mixers(void);
 268 extern int tas_mixer_is_stereo(int mixer);
 269 extern int tas_stereo_mixers(void);
 270 extern int tas_output_device_change(int,int,int);
 271 extern int tas_device_ioctl(u_int, u_long);
 272
 273 extern void tas_cleanup(void);
 274 extern int tas_init(int driver_id,const char *driver_name);
 275 extern int tas_post_init(void);
 276
 277 #endif /* _TAS_COMMON_H_ */
 278 /*
 279  * Local Variables:
 280  * tab-width: 8
 281  * indent-tabs-mode: t
 282  * c-basic-offset: 8
 283  * End:
 284  */