diff options
Diffstat (limited to 'drivers/media/dvb/frontends/tda18271-common.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda18271-common.c | 57 |
1 files changed, 35 insertions, 22 deletions
diff --git a/drivers/media/dvb/frontends/tda18271-common.c b/drivers/media/dvb/frontends/tda18271-common.c index bca57099061..e27a7620a32 100644 --- a/drivers/media/dvb/frontends/tda18271-common.c +++ b/drivers/media/dvb/frontends/tda18271-common.c @@ -125,16 +125,16 @@ int tda18271_read_regs(struct dvb_frontend *fe) unsigned char buf = 0x00; int ret; struct i2c_msg msg[] = { - { .addr = priv->i2c_addr, .flags = 0, + { .addr = priv->i2c_props.addr, .flags = 0, .buf = &buf, .len = 1 }, - { .addr = priv->i2c_addr, .flags = I2C_M_RD, + { .addr = priv->i2c_props.addr, .flags = I2C_M_RD, .buf = regs, .len = 16 } }; tda18271_i2c_gate_ctrl(fe, 1); /* read all registers */ - ret = i2c_transfer(priv->i2c_adap, msg, 2); + ret = i2c_transfer(priv->i2c_props.adap, msg, 2); tda18271_i2c_gate_ctrl(fe, 0); @@ -155,16 +155,16 @@ int tda18271_read_extended(struct dvb_frontend *fe) unsigned char buf = 0x00; int ret, i; struct i2c_msg msg[] = { - { .addr = priv->i2c_addr, .flags = 0, + { .addr = priv->i2c_props.addr, .flags = 0, .buf = &buf, .len = 1 }, - { .addr = priv->i2c_addr, .flags = I2C_M_RD, + { .addr = priv->i2c_props.addr, .flags = I2C_M_RD, .buf = regdump, .len = TDA18271_NUM_REGS } }; tda18271_i2c_gate_ctrl(fe, 1); /* read all registers */ - ret = i2c_transfer(priv->i2c_adap, msg, 2); + ret = i2c_transfer(priv->i2c_props.adap, msg, 2); tda18271_i2c_gate_ctrl(fe, 0); @@ -192,7 +192,7 @@ int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len) struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; unsigned char buf[TDA18271_NUM_REGS + 1]; - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, + struct i2c_msg msg = { .addr = priv->i2c_props.addr, .flags = 0, .buf = buf, .len = len + 1 }; int i, ret; @@ -205,7 +205,7 @@ int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len) tda18271_i2c_gate_ctrl(fe, 1); /* write registers */ - ret = i2c_transfer(priv->i2c_adap, &msg, 1); + ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); tda18271_i2c_gate_ctrl(fe, 0); @@ -217,13 +217,29 @@ int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len) /*---------------------------------------------------------------------*/ +int tda18271_charge_pump_source(struct dvb_frontend *fe, + enum tda18271_pll pll, int force) +{ + struct tda18271_priv *priv = fe->tuner_priv; + unsigned char *regs = priv->tda18271_regs; + + int r_cp = (pll == TDA18271_CAL_PLL) ? R_EB7 : R_EB4; + + regs[r_cp] &= ~0x20; + regs[r_cp] |= ((force & 1) << 5); + tda18271_write_regs(fe, r_cp, 1); + + return 0; +} + int tda18271_init_regs(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; tda_dbg("initializing registers for device @ %d-%04x\n", - i2c_adapter_id(priv->i2c_adap), priv->i2c_addr); + i2c_adapter_id(priv->i2c_props.adap), + priv->i2c_props.addr); /* initialize registers */ switch (priv->id) { @@ -310,7 +326,12 @@ int tda18271_init_regs(struct dvb_frontend *fe) regs[R_EB22] = 0x48; regs[R_EB23] = 0xb0; - tda18271_write_regs(fe, 0x00, TDA18271_NUM_REGS); + if (priv->small_i2c) { + tda18271_write_regs(fe, 0x00, 0x10); + tda18271_write_regs(fe, 0x10, 0x10); + tda18271_write_regs(fe, 0x20, 0x07); + } else + tda18271_write_regs(fe, 0x00, TDA18271_NUM_REGS); /* setup agc1 gain */ regs[R_EB17] = 0x00; @@ -349,24 +370,15 @@ int tda18271_init_regs(struct dvb_frontend *fe) regs[R_MD2] = 0x08; regs[R_MD3] = 0x00; - switch (priv->id) { - case TDA18271HDC1: - tda18271_write_regs(fe, R_EP3, 11); - break; - case TDA18271HDC2: - tda18271_write_regs(fe, R_EP3, 12); - break; - }; + tda18271_write_regs(fe, R_EP3, 11); if ((priv->id) == TDA18271HDC2) { /* main pll cp source on */ - regs[R_EB4] = 0x61; - tda18271_write_regs(fe, R_EB4, 1); + tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1); msleep(1); /* main pll cp source off */ - regs[R_EB4] = 0x41; - tda18271_write_regs(fe, R_EB4, 1); + tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0); } msleep(5); /* pll locking */ @@ -398,6 +410,7 @@ int tda18271_init_regs(struct dvb_frontend *fe) tda18271_write_regs(fe, R_EP3, 11); msleep(5); /* pll locking */ + /* launch detector */ tda18271_write_regs(fe, R_EP1, 1); msleep(5); /* wanted mid measurement */ |