#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:
*/
