Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) { |
Benjamin Herrenschmidt | 367636e | 2006-02-08 15:04:18 +1100 | [diff] [blame] | 181 | rc=i2c_smbus_write_i2c_block_data(self->client, |
| 182 | reg_num, |
| 183 | reg_width, |
| 184 | data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Benjamin Herrenschmidt | 367636e | 2006-02-08 15:04:18 +1100 | [diff] [blame] | 202 | rc=i2c_smbus_write_i2c_block_data(self->client, |
| 203 | reg_num, |
| 204 | reg_width, |
| 205 | self->shadow[reg_num]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |