diff options
Diffstat (limited to 'drivers/media/dvb/frontends/stv6110x.c')
-rw-r--r-- | drivers/media/dvb/frontends/stv6110x.c | 188 |
1 files changed, 120 insertions, 68 deletions
diff --git a/drivers/media/dvb/frontends/stv6110x.c b/drivers/media/dvb/frontends/stv6110x.c index bcfcb652464..f931ed07e92 100644 --- a/drivers/media/dvb/frontends/stv6110x.c +++ b/drivers/media/dvb/frontends/stv6110x.c @@ -35,8 +35,6 @@ static unsigned int verbose; module_param(verbose, int, 0644); MODULE_PARM_DESC(verbose, "Set Verbosity level"); -static u8 stv6110x_regs[] = {0x07, 0x11, 0xdc, 0x85, 0x17, 0x01, 0xe6, 0x1e}; - static int stv6110x_read_reg(struct stv6110x_state *stv6110x, u8 reg, u8 *data) { int ret; @@ -58,12 +56,23 @@ static int stv6110x_read_reg(struct stv6110x_state *stv6110x, u8 reg, u8 *data) return 0; } -static int stv6110x_write_reg(struct stv6110x_state *stv6110x, u8 reg, u8 data) +static int stv6110x_write_regs(struct stv6110x_state *stv6110x, int start, u8 data[], int len) { int ret; const struct stv6110x_config *config = stv6110x->config; - u8 buf[] = { reg, data }; - struct i2c_msg msg = { .addr = config->addr, .flags = 0, . buf = buf, .len = 2 }; + u8 buf[len + 1]; + struct i2c_msg msg = { + .addr = config->addr, + .flags = 0, + .buf = buf, + .len = len + 1 + }; + + if (start + len > 8) + return -EINVAL; + + buf[0] = start; + memcpy(&buf[1], data, len); ret = i2c_transfer(stv6110x->i2c, &msg, 1); if (ret != 1) { @@ -74,18 +83,21 @@ static int stv6110x_write_reg(struct stv6110x_state *stv6110x, u8 reg, u8 data) return 0; } +static int stv6110x_write_reg(struct stv6110x_state *stv6110x, u8 reg, u8 data) +{ + return stv6110x_write_regs(stv6110x, reg, &data, 1); +} + static int stv6110x_init(struct dvb_frontend *fe) { struct stv6110x_state *stv6110x = fe->tuner_priv; int ret; - u8 i; - for (i = 0; i < ARRAY_SIZE(stv6110x_regs); i++) { - ret = stv6110x_write_reg(stv6110x, i, stv6110x_regs[i]); - if (ret < 0) { - dprintk(FE_ERROR, 1, "Initialization failed"); - return -1; - } + ret = stv6110x_write_regs(stv6110x, 0, stv6110x->regs, + ARRAY_SIZE(stv6110x->regs)); + if (ret < 0) { + dprintk(FE_ERROR, 1, "Initialization failed"); + return -1; } return 0; @@ -98,23 +110,23 @@ static int stv6110x_set_frequency(struct dvb_frontend *fe, u32 frequency) s32 pVal, pCalc, rDivOpt = 0, pCalcOpt = 1000; u8 i; - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL1], CTRL1_K, (REFCLOCK_MHz - 16)); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_K, (REFCLOCK_MHz - 16)); if (frequency <= 1023000) { - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_DIV4SEL, 1); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_PRESC32_ON, 0); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_DIV4SEL, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_PRESC32_ON, 0); pVal = 40; } else if (frequency <= 1300000) { - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_DIV4SEL, 1); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_PRESC32_ON, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_DIV4SEL, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_PRESC32_ON, 1); pVal = 40; } else if (frequency <= 2046000) { - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_DIV4SEL, 0); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_PRESC32_ON, 0); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_DIV4SEL, 0); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_PRESC32_ON, 0); pVal = 20; } else { - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_DIV4SEL, 0); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_PRESC32_ON, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_DIV4SEL, 0); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_PRESC32_ON, 1); pVal = 20; } @@ -130,21 +142,21 @@ static int stv6110x_set_frequency(struct dvb_frontend *fe, u32 frequency) divider = (frequency * R_DIV(rDivOpt) * pVal) / REFCLOCK_kHz; divider = (divider + 5) / 10; - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_R_DIV, rDivOpt); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG1], TNG1_N_DIV_11_8, MSB(divider)); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_TNG0], TNG0_N_DIV_7_0, LSB(divider)); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_R_DIV, rDivOpt); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_N_DIV_11_8, MSB(divider)); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG0], TNG0_N_DIV_7_0, LSB(divider)); /* VCO Auto calibration */ - STV6110x_SETFIELD(stv6110x_regs[STV6110x_STAT1], STAT1_CALVCO_STRT, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_STAT1], STAT1_CALVCO_STRT, 1); - stv6110x_write_reg(stv6110x, STV6110x_CTRL1, stv6110x_regs[STV6110x_CTRL1]); - stv6110x_write_reg(stv6110x, STV6110x_TNG1, stv6110x_regs[STV6110x_TNG1]); - stv6110x_write_reg(stv6110x, STV6110x_TNG0, stv6110x_regs[STV6110x_TNG0]); - stv6110x_write_reg(stv6110x, STV6110x_STAT1, stv6110x_regs[STV6110x_STAT1]); + stv6110x_write_reg(stv6110x, STV6110x_CTRL1, stv6110x->regs[STV6110x_CTRL1]); + stv6110x_write_reg(stv6110x, STV6110x_TNG1, stv6110x->regs[STV6110x_TNG1]); + stv6110x_write_reg(stv6110x, STV6110x_TNG0, stv6110x->regs[STV6110x_TNG0]); + stv6110x_write_reg(stv6110x, STV6110x_STAT1, stv6110x->regs[STV6110x_STAT1]); for (i = 0; i < TRIALS; i++) { - stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x_regs[STV6110x_STAT1]); - if (!STV6110x_GETFIELD(STAT1_CALVCO_STRT, stv6110x_regs[STV6110x_STAT1])) + stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x->regs[STV6110x_STAT1]); + if (!STV6110x_GETFIELD(STAT1_CALVCO_STRT, stv6110x->regs[STV6110x_STAT1])) break; msleep(1); } @@ -156,14 +168,14 @@ static int stv6110x_get_frequency(struct dvb_frontend *fe, u32 *frequency) { struct stv6110x_state *stv6110x = fe->tuner_priv; - stv6110x_read_reg(stv6110x, STV6110x_TNG1, &stv6110x_regs[STV6110x_TNG1]); - stv6110x_read_reg(stv6110x, STV6110x_TNG0, &stv6110x_regs[STV6110x_TNG0]); + stv6110x_read_reg(stv6110x, STV6110x_TNG1, &stv6110x->regs[STV6110x_TNG1]); + stv6110x_read_reg(stv6110x, STV6110x_TNG0, &stv6110x->regs[STV6110x_TNG0]); - *frequency = (MAKEWORD16(STV6110x_GETFIELD(TNG1_N_DIV_11_8, stv6110x_regs[STV6110x_TNG1]), - STV6110x_GETFIELD(TNG0_N_DIV_7_0, stv6110x_regs[STV6110x_TNG0]))) * REFCLOCK_kHz; + *frequency = (MAKEWORD16(STV6110x_GETFIELD(TNG1_N_DIV_11_8, stv6110x->regs[STV6110x_TNG1]), + STV6110x_GETFIELD(TNG0_N_DIV_7_0, stv6110x->regs[STV6110x_TNG0]))) * REFCLOCK_kHz; - *frequency /= (1 << (STV6110x_GETFIELD(TNG1_R_DIV, stv6110x_regs[STV6110x_TNG1]) + - STV6110x_GETFIELD(TNG1_DIV4SEL, stv6110x_regs[STV6110x_TNG1]))); + *frequency /= (1 << (STV6110x_GETFIELD(TNG1_R_DIV, stv6110x->regs[STV6110x_TNG1]) + + STV6110x_GETFIELD(TNG1_DIV4SEL, stv6110x->regs[STV6110x_TNG1]))); *frequency >>= 2; @@ -179,27 +191,27 @@ static int stv6110x_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth) halfbw = bandwidth >> 1; if (halfbw > 36000000) - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL3], CTRL3_CF, 31); /* LPF */ + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_CF, 31); /* LPF */ else if (halfbw < 5000000) - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL3], CTRL3_CF, 0); /* LPF */ + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_CF, 0); /* LPF */ else - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL3], CTRL3_CF, ((halfbw / 1000000) - 5)); /* LPF */ + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_CF, ((halfbw / 1000000) - 5)); /* LPF */ - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL3], CTRL3_RCCLK_OFF, 0x0); /* cal. clk activated */ - STV6110x_SETFIELD(stv6110x_regs[STV6110x_STAT1], STAT1_CALRC_STRT, 0x1); /* LPF auto cal */ + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_RCCLK_OFF, 0x0); /* cal. clk activated */ + STV6110x_SETFIELD(stv6110x->regs[STV6110x_STAT1], STAT1_CALRC_STRT, 0x1); /* LPF auto cal */ - stv6110x_write_reg(stv6110x, STV6110x_CTRL3, stv6110x_regs[STV6110x_CTRL3]); - stv6110x_write_reg(stv6110x, STV6110x_STAT1, stv6110x_regs[STV6110x_STAT1]); + stv6110x_write_reg(stv6110x, STV6110x_CTRL3, stv6110x->regs[STV6110x_CTRL3]); + stv6110x_write_reg(stv6110x, STV6110x_STAT1, stv6110x->regs[STV6110x_STAT1]); for (i = 0; i < TRIALS; i++) { - stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x_regs[STV6110x_STAT1]); - if (!STV6110x_GETFIELD(STAT1_CALRC_STRT, stv6110x_regs[STV6110x_STAT1])) + stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x->regs[STV6110x_STAT1]); + if (!STV6110x_GETFIELD(STAT1_CALRC_STRT, stv6110x->regs[STV6110x_STAT1])) break; msleep(1); } - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL3], CTRL3_RCCLK_OFF, 0x1); /* cal. done */ - stv6110x_write_reg(stv6110x, STV6110x_CTRL3, stv6110x_regs[STV6110x_CTRL3]); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_RCCLK_OFF, 0x1); /* cal. done */ + stv6110x_write_reg(stv6110x, STV6110x_CTRL3, stv6110x->regs[STV6110x_CTRL3]); return 0; } @@ -208,8 +220,8 @@ static int stv6110x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) { struct stv6110x_state *stv6110x = fe->tuner_priv; - stv6110x_read_reg(stv6110x, STV6110x_CTRL3, &stv6110x_regs[STV6110x_CTRL3]); - *bandwidth = (STV6110x_GETFIELD(CTRL3_CF, stv6110x_regs[STV6110x_CTRL3]) + 5) * 2000000; + stv6110x_read_reg(stv6110x, STV6110x_CTRL3, &stv6110x->regs[STV6110x_CTRL3]); + *bandwidth = (STV6110x_GETFIELD(CTRL3_CF, stv6110x->regs[STV6110x_CTRL3]) + 5) * 2000000; return 0; } @@ -222,20 +234,20 @@ static int stv6110x_set_refclock(struct dvb_frontend *fe, u32 refclock) switch (refclock) { default: case 1: - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL2], CTRL2_CO_DIV, 0); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 0); break; case 2: - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL2], CTRL2_CO_DIV, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 1); break; case 4: - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL2], CTRL2_CO_DIV, 2); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 2); break; case 8: case 0: - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL2], CTRL2_CO_DIV, 3); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 3); break; } - stv6110x_write_reg(stv6110x, STV6110x_CTRL2, stv6110x_regs[STV6110x_CTRL2]); + stv6110x_write_reg(stv6110x, STV6110x_CTRL2, stv6110x->regs[STV6110x_CTRL2]); return 0; } @@ -244,8 +256,8 @@ static int stv6110x_get_bbgain(struct dvb_frontend *fe, u32 *gain) { struct stv6110x_state *stv6110x = fe->tuner_priv; - stv6110x_read_reg(stv6110x, STV6110x_CTRL2, &stv6110x_regs[STV6110x_CTRL2]); - *gain = 2 * STV6110x_GETFIELD(CTRL2_BBGAIN, stv6110x_regs[STV6110x_CTRL2]); + stv6110x_read_reg(stv6110x, STV6110x_CTRL2, &stv6110x->regs[STV6110x_CTRL2]); + *gain = 2 * STV6110x_GETFIELD(CTRL2_BBGAIN, stv6110x->regs[STV6110x_CTRL2]); return 0; } @@ -254,8 +266,8 @@ static int stv6110x_set_bbgain(struct dvb_frontend *fe, u32 gain) { struct stv6110x_state *stv6110x = fe->tuner_priv; - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL2], CTRL2_BBGAIN, gain / 2); - stv6110x_write_reg(stv6110x, STV6110x_CTRL2, stv6110x_regs[STV6110x_CTRL2]); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_BBGAIN, gain / 2); + stv6110x_write_reg(stv6110x, STV6110x_CTRL2, stv6110x->regs[STV6110x_CTRL2]); return 0; } @@ -267,19 +279,19 @@ static int stv6110x_set_mode(struct dvb_frontend *fe, enum tuner_mode mode) switch (mode) { case TUNER_SLEEP: - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL1], CTRL1_SYN, 0); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL1], CTRL1_RX, 0); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL1], CTRL1_LPT, 0); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_SYN, 0); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_RX, 0); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_LPT, 0); break; case TUNER_WAKE: - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL1], CTRL1_SYN, 1); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL1], CTRL1_RX, 1); - STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL1], CTRL1_LPT, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_SYN, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_RX, 1); + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_LPT, 1); break; } - ret = stv6110x_write_reg(stv6110x, STV6110x_CTRL1, stv6110x_regs[STV6110x_CTRL1]); + ret = stv6110x_write_reg(stv6110x, STV6110x_CTRL1, stv6110x->regs[STV6110x_CTRL1]); if (ret < 0) { dprintk(FE_ERROR, 1, "I/O Error"); return -EIO; @@ -297,9 +309,9 @@ static int stv6110x_get_status(struct dvb_frontend *fe, u32 *status) { struct stv6110x_state *stv6110x = fe->tuner_priv; - stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x_regs[STV6110x_STAT1]); + stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x->regs[STV6110x_STAT1]); - if (STV6110x_GETFIELD(STAT1_LOCK, stv6110x_regs[STV6110x_STAT1])) + if (STV6110x_GETFIELD(STAT1_LOCK, stv6110x->regs[STV6110x_STAT1])) *status = TUNER_PHASELOCKED; else *status = 0; @@ -349,6 +361,8 @@ struct stv6110x_devctl *stv6110x_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c) { struct stv6110x_state *stv6110x; + u8 default_regs[] = {0x07, 0x11, 0xdc, 0x85, 0x17, 0x01, 0xe6, 0x1e}; + int ret; stv6110x = kzalloc(sizeof (struct stv6110x_state), GFP_KERNEL); if (stv6110x == NULL) @@ -357,6 +371,44 @@ struct stv6110x_devctl *stv6110x_attach(struct dvb_frontend *fe, stv6110x->i2c = i2c; stv6110x->config = config; stv6110x->devctl = &stv6110x_ctl; + memcpy(stv6110x->regs, default_regs, 8); + + /* setup divider */ + switch (stv6110x->config->clk_div) { + default: + case 1: + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 0); + break; + case 2: + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 1); + break; + case 4: + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 2); + break; + case 8: + case 0: + STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 3); + break; + } + + if (fe->ops.i2c_gate_ctrl) { + ret = fe->ops.i2c_gate_ctrl(fe, 1); + if (ret < 0) + goto error; + } + + ret = stv6110x_write_regs(stv6110x, 0, stv6110x->regs, + ARRAY_SIZE(stv6110x->regs)); + if (ret < 0) { + dprintk(FE_ERROR, 1, "Initialization failed"); + goto error; + } + + if (fe->ops.i2c_gate_ctrl) { + ret = fe->ops.i2c_gate_ctrl(fe, 0); + if (ret < 0) + goto error; + } fe->tuner_priv = stv6110x; fe->ops.tuner_ops = stv6110x_ops; |