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path: root/drivers/media/dvb/frontends/stv6110x.c
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Diffstat (limited to 'drivers/media/dvb/frontends/stv6110x.c')
-rw-r--r--drivers/media/dvb/frontends/stv6110x.c188
1 files changed, 120 insertions, 68 deletions
diff --git a/drivers/media/dvb/frontends/stv6110x.c b/drivers/media/dvb/frontends/stv6110x.c
index bcfcb652464c..f931ed07e92d 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;
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-02 11:35:01 +0000