frodovdr/dddvb
1
0
Fork 0
mirror of https://github.com/DigitalDevices/dddvb.git synced 2023-10-10 13:37:43 +02:00
Code Issues Releases Wiki Activity

simplify i2c functions

Browse Source
This commit is contained in:
Ralph Metzler 2017-10-25 23:07:43 +02:00
parent b7c9038f51
commit 021eae2eac
1 changed files with 12 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
frontends/stv0910.c
View File

@ -140,41 +140,18 @@ struct slookup {
u16 reg_value;
};
static inline int i2c_write(struct i2c_adapter *adap, u8 adr,
u8 *data, int len)
{
struct i2c_msg msg = {.addr = adr, .flags = 0,
.buf = data, .len = len};
return (i2c_transfer(adap, &msg, 1) == 1) ? 0 : -1;
}
static int i2c_write_reg16(struct i2c_adapter *adap, u8 adr, u16 reg, u8 val)
{
u8 msg[3] = {reg >> 8, reg & 0xff, val};
return i2c_write(adap, adr, msg, 3);
}
static int write_reg(struct stv *state, u16 reg, u8 val)
{
return i2c_write_reg16(state->base->i2c, state->base->adr, reg, val);
u8 data[3] = {reg >> 8, reg & 0xff, val};
struct i2c_msg msg = {.addr = state->base->adr, .flags = 0,
.buf = data, .len = 3};
return (i2c_transfer(state->base->i2c, &msg, 1) == 1) ? 0 : -1;
}
static inline int i2c_read_reg16(struct i2c_adapter *adapter, u8 adr,
u16 reg, u8 *val)
static int write_reg_off(struct stv *state, u16 reg, u8 val)
{
u8 msg[2] = {reg >> 8, reg & 0xff};
struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0,
.buf = msg, .len = 2},
{.addr = adr, .flags = I2C_M_RD,
.buf = val, .len = 1 } };
return (i2c_transfer(adapter, msgs, 2) == 2) ? 0 : -1;
}
static int read_reg(struct stv *state, u16 reg, u8 *val)
{
return i2c_read_reg16(state->base->i2c, state->base->adr, reg, val);
return write_reg(state, reg + state->regoff, val);
}
static inline int i2c_read_regs16(struct i2c_adapter *adapter, u8 adr,
@ -194,6 +171,11 @@ static int read_regs(struct stv *state, u16 reg, u8 *val, int len)
reg, val, len);
}
static int read_reg(struct stv *state, u16 reg, u8 *val)
{
return read_regs(state, reg, val, 1);
}
static int write_shared_reg(struct stv *state, u16 reg, u8 mask, u8 val)
{
int status;