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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/oss/dmasound/tas_common.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'sound/oss/dmasound/tas_common.h')
-rw-r--r-- | sound/oss/dmasound/tas_common.h | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/sound/oss/dmasound/tas_common.h b/sound/oss/dmasound/tas_common.h new file mode 100644 index 000000000000..3a6d48666db0 --- /dev/null +++ b/sound/oss/dmasound/tas_common.h @@ -0,0 +1,284 @@ +#ifndef _TAS_COMMON_H_ +#define _TAS_COMMON_H_ + +#include <linux/i2c.h> +#include <linux/soundcard.h> +#include <asm/string.h> + +#define I2C_DRIVERID_TAS_BASE (0xFEBA) + +#define SET_4_20(shadow, offset, val) \ + do { \ + (shadow)[(offset)+0] = ((val) >> 16) & 0xff; \ + (shadow)[(offset)+1] = ((val) >> 8) & 0xff; \ + (shadow)[(offset)+2] = ((val) >> 0) & 0xff; \ + } while (0) + +#define GET_4_20(shadow, offset) \ + (((u_int)((shadow)[(offset)+0]) << 16) | \ + ((u_int)((shadow)[(offset)+1]) << 8) | \ + ((u_int)((shadow)[(offset)+2]) << 0)) + + +#define TAS_BIQUAD_FAST_LOAD 0x01 + +#define TAS_DRCE_ENABLE 0x01 +#define TAS_DRCE_ABOVE_RATIO 0x02 +#define TAS_DRCE_BELOW_RATIO 0x04 +#define TAS_DRCE_THRESHOLD 0x08 +#define TAS_DRCE_ENERGY 0x10 +#define TAS_DRCE_ATTACK 0x20 +#define TAS_DRCE_DECAY 0x40 + +#define TAS_DRCE_ALL 0x7f + + +#define TAS_OUTPUT_HEADPHONES 0x00 +#define TAS_OUTPUT_INTERNAL_SPKR 0x01 +#define TAS_OUTPUT_EXTERNAL_SPKR 0x02 + + +union tas_biquad_t { + struct { + int b0,b1,b2,a1,a2; + } coeff; + int buf[5]; +}; + +struct tas_biquad_ctrl_t { + u_int channel:4; + u_int filter:4; + + union tas_biquad_t data; +}; + +struct tas_biquad_ctrl_list_t { + int flags; + int filter_count; + struct tas_biquad_ctrl_t biquads[0]; +}; + +struct tas_ratio_t { + unsigned short val; /* 8.8 */ + unsigned short expand; /* 0 = compress, !0 = expand. */ +}; + +struct tas_drce_t { + unsigned short enable; + struct tas_ratio_t above; + struct tas_ratio_t below; + short threshold; /* dB, 8.8 signed */ + unsigned short energy; /* seconds, 4.12 unsigned */ + unsigned short attack; /* seconds, 4.12 unsigned */ + unsigned short decay; /* seconds, 4.12 unsigned */ +}; + +struct tas_drce_ctrl_t { + uint flags; + + struct tas_drce_t data; +}; + +struct tas_gain_t +{ + unsigned int *master; + unsigned int *treble; + unsigned int *bass; + unsigned int *mixer; +}; + +typedef char tas_shadow_t[0x45]; + +struct tas_data_t +{ + struct i2c_client *client; + tas_shadow_t *shadow; + uint mixer[SOUND_MIXER_NRDEVICES]; +}; + +typedef int (*tas_hook_init_t)(struct i2c_client *); +typedef int (*tas_hook_post_init_t)(struct tas_data_t *); +typedef void (*tas_hook_uninit_t)(struct tas_data_t *); + +typedef int (*tas_hook_get_mixer_level_t)(struct tas_data_t *,int,uint *); +typedef int (*tas_hook_set_mixer_level_t)(struct tas_data_t *,int,uint); + +typedef int (*tas_hook_enter_sleep_t)(struct tas_data_t *); +typedef int (*tas_hook_leave_sleep_t)(struct tas_data_t *); + +typedef int (*tas_hook_supported_mixers_t)(struct tas_data_t *); +typedef int (*tas_hook_mixer_is_stereo_t)(struct tas_data_t *,int); +typedef int (*tas_hook_stereo_mixers_t)(struct tas_data_t *); + +typedef int (*tas_hook_output_device_change_t)(struct tas_data_t *,int,int,int); +typedef int (*tas_hook_device_ioctl_t)(struct tas_data_t *,u_int,u_long); + +struct tas_driver_hooks_t { + /* + * All hardware initialisation must be performed in + * post_init(), as tas_dmasound_init() does a hardware reset. + * + * init() is called before tas_dmasound_init() so that + * ouput_device_change() is always called after i2c driver + * initialisation. The implication is that + * output_device_change() must cope with the fact that it + * may be called before post_init(). + */ + + tas_hook_init_t init; + tas_hook_post_init_t post_init; + tas_hook_uninit_t uninit; + + tas_hook_get_mixer_level_t get_mixer_level; + tas_hook_set_mixer_level_t set_mixer_level; + + tas_hook_enter_sleep_t enter_sleep; + tas_hook_leave_sleep_t leave_sleep; + + tas_hook_supported_mixers_t supported_mixers; + tas_hook_mixer_is_stereo_t mixer_is_stereo; + tas_hook_stereo_mixers_t stereo_mixers; + + tas_hook_output_device_change_t output_device_change; + tas_hook_device_ioctl_t device_ioctl; +}; + +enum tas_write_mode_t { + WRITE_HW = 0x01, + WRITE_SHADOW = 0x02, + WRITE_NORMAL = 0x03, + FORCE_WRITE = 0x04 +}; + +static inline uint +tas_mono_to_stereo(uint mono) +{ + mono &=0xff; + return mono | (mono<<8); +} + +/* + * Todo: make these functions a bit more efficient ! + */ +static inline int +tas_write_register( struct tas_data_t *self, + uint reg_num, + uint reg_width, + char *data, + uint write_mode) +{ + int rc; + + if (reg_width==0 || data==NULL || self==NULL) + return -EINVAL; + if (!(write_mode & FORCE_WRITE) && + !memcmp(data,self->shadow[reg_num],reg_width)) + return 0; + + if (write_mode & WRITE_SHADOW) + memcpy(self->shadow[reg_num],data,reg_width); + if (write_mode & WRITE_HW) { + rc=i2c_smbus_write_block_data(self->client, + reg_num, + reg_width, + data); + if (rc < 0) { + printk("tas: I2C block write failed \n"); + return rc; + } + } + return 0; +} + +static inline int +tas_sync_register( struct tas_data_t *self, + uint reg_num, + uint reg_width) +{ + int rc; + + if (reg_width==0 || self==NULL) + return -EINVAL; + rc=i2c_smbus_write_block_data(self->client, + reg_num, + reg_width, + self->shadow[reg_num]); + if (rc < 0) { + printk("tas: I2C block write failed \n"); + return rc; + } + return 0; +} + +static inline int +tas_write_byte_register( struct tas_data_t *self, + uint reg_num, + char data, + uint write_mode) +{ + if (self==NULL) + return -1; + if (!(write_mode & FORCE_WRITE) && data != self->shadow[reg_num][0]) + return 0; + if (write_mode & WRITE_SHADOW) + self->shadow[reg_num][0]=data; + if (write_mode & WRITE_HW) { + if (i2c_smbus_write_byte_data(self->client, reg_num, data) < 0) { + printk("tas: I2C byte write failed \n"); + return -1; + } + } + return 0; +} + +static inline int +tas_sync_byte_register( struct tas_data_t *self, + uint reg_num, + uint reg_width) +{ + if (reg_width==0 || self==NULL) + return -1; + if (i2c_smbus_write_byte_data( + self->client, reg_num, self->shadow[reg_num][0]) < 0) { + printk("tas: I2C byte write failed \n"); + return -1; + } + return 0; +} + +static inline int +tas_read_register( struct tas_data_t *self, + uint reg_num, + uint reg_width, + char *data) +{ + if (reg_width==0 || data==NULL || self==NULL) + return -1; + memcpy(data,self->shadow[reg_num],reg_width); + return 0; +} + +extern int tas_register_driver(struct tas_driver_hooks_t *hooks); + +extern int tas_get_mixer_level(int mixer,uint *level); +extern int tas_set_mixer_level(int mixer,uint level); +extern int tas_enter_sleep(void); +extern int tas_leave_sleep(void); +extern int tas_supported_mixers(void); +extern int tas_mixer_is_stereo(int mixer); +extern int tas_stereo_mixers(void); +extern int tas_output_device_change(int,int,int); +extern int tas_device_ioctl(u_int, u_long); + +extern void tas_cleanup(void); +extern int tas_init(int driver_id,const char *driver_name); +extern int tas_post_init(void); + +#endif /* _TAS_COMMON_H_ */ +/* + * Local Variables: + * tab-width: 8 + * indent-tabs-mode: t + * c-basic-offset: 8 + * End: + */ |