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path: root/drivers/media/dvb
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Diffstat (limited to 'drivers/media/dvb')
-rw-r--r--drivers/media/dvb/frontends/stv090x.c211
1 files changed, 185 insertions, 26 deletions
diff --git a/drivers/media/dvb/frontends/stv090x.c b/drivers/media/dvb/frontends/stv090x.c
index dba2c0407fd1..e26bfd765460 100644
--- a/drivers/media/dvb/frontends/stv090x.c
+++ b/drivers/media/dvb/frontends/stv090x.c
@@ -3846,6 +3846,7 @@ static int stv090x_sleep(struct dvb_frontend *fe)
{
struct stv090x_state *state = fe->demodulator_priv;
u32 reg;
+ u8 full_standby = 0;
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
@@ -3858,24 +3859,119 @@ static int stv090x_sleep(struct dvb_frontend *fe)
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
- dprintk(FE_DEBUG, 1, "Set %s to sleep",
- state->device == STV0900 ? "STV0900" : "STV0903");
+ dprintk(FE_DEBUG, 1, "Set %s(%d) to sleep",
+ state->device == STV0900 ? "STV0900" : "STV0903",
+ state->demod);
- reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
- STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
- if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
- goto err;
+ mutex_lock(&state->internal->demod_lock);
- reg = stv090x_read_reg(state, STV090x_TSTTNR1);
- STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
- if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
- goto err;
+ switch (state->demod) {
+ case STV090x_DEMODULATOR_0:
+ /* power off ADC 1 */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR1);
+ STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
+ if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
+ goto err;
+ /* power off DiSEqC 1 */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR2);
+ STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 0);
+ if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
+ goto err;
+
+ /* check whether path 2 is already sleeping, that is when
+ ADC2 is off */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR3);
+ if (STV090x_GETFIELD(reg, ADC2_PON_FIELD) == 0)
+ full_standby = 1;
+
+ /* stop clocks */
+ reg = stv090x_read_reg(state, STV090x_STOPCLK1);
+ /* packet delineator 1 clock */
+ STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 1);
+ /* ADC 1 clock */
+ STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 1);
+ /* FEC clock is shared between the two paths, only stop it
+ when full standby is possible */
+ if (full_standby)
+ STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
+ if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
+ goto err;
+ reg = stv090x_read_reg(state, STV090x_STOPCLK2);
+ /* sampling 1 clock */
+ STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 1);
+ /* viterbi 1 clock */
+ STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 1);
+ /* TS clock is shared between the two paths, only stop it
+ when full standby is possible */
+ if (full_standby)
+ STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
+ if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
+ goto err;
+ break;
+ case STV090x_DEMODULATOR_1:
+ /* power off ADC 2 */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR3);
+ STV090x_SETFIELD(reg, ADC2_PON_FIELD, 0);
+ if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
+ goto err;
+ /* power off DiSEqC 2 */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR4);
+ STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 0);
+ if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
+ goto err;
+
+ /* check whether path 1 is already sleeping, that is when
+ ADC1 is off */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR1);
+ if (STV090x_GETFIELD(reg, ADC1_PON_FIELD) == 0)
+ full_standby = 1;
+
+ /* stop clocks */
+ reg = stv090x_read_reg(state, STV090x_STOPCLK1);
+ /* packet delineator 2 clock */
+ STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 1);
+ /* ADC 2 clock */
+ STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 1);
+ /* FEC clock is shared between the two paths, only stop it
+ when full standby is possible */
+ if (full_standby)
+ STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
+ if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
+ goto err;
+ reg = stv090x_read_reg(state, STV090x_STOPCLK2);
+ /* sampling 2 clock */
+ STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 1);
+ /* viterbi 2 clock */
+ STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 1);
+ /* TS clock is shared between the two paths, only stop it
+ when full standby is possible */
+ if (full_standby)
+ STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
+ if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
+ goto err;
+ break;
+
+ default:
+ dprintk(FE_ERROR, 1, "Wrong demodulator!");
+ break;
+ }
+
+ if (full_standby) {
+ /* general power off */
+ reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
+ STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
+ if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
+ goto err;
+ }
+
+ mutex_unlock(&state->internal->demod_lock);
return 0;
err_gateoff:
stv090x_i2c_gate_ctrl(state, 0);
err:
+ mutex_unlock(&state->internal->demod_lock);
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
@@ -3885,21 +3981,94 @@ static int stv090x_wakeup(struct dvb_frontend *fe)
struct stv090x_state *state = fe->demodulator_priv;
u32 reg;
- dprintk(FE_DEBUG, 1, "Wake %s from standby",
- state->device == STV0900 ? "STV0900" : "STV0903");
+ dprintk(FE_DEBUG, 1, "Wake %s(%d) from standby",
+ state->device == STV0900 ? "STV0900" : "STV0903",
+ state->demod);
+
+ mutex_lock(&state->internal->demod_lock);
+ /* general power on */
reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
goto err;
- reg = stv090x_read_reg(state, STV090x_TSTTNR1);
- STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
- if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
- goto err;
+ switch (state->demod) {
+ case STV090x_DEMODULATOR_0:
+ /* power on ADC 1 */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR1);
+ STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
+ if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
+ goto err;
+ /* power on DiSEqC 1 */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR2);
+ STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 1);
+ if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
+ goto err;
+
+ /* activate clocks */
+ reg = stv090x_read_reg(state, STV090x_STOPCLK1);
+ /* packet delineator 1 clock */
+ STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 0);
+ /* ADC 1 clock */
+ STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 0);
+ /* FEC clock */
+ STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
+ if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
+ goto err;
+ reg = stv090x_read_reg(state, STV090x_STOPCLK2);
+ /* sampling 1 clock */
+ STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 0);
+ /* viterbi 1 clock */
+ STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 0);
+ /* TS clock */
+ STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
+ if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
+ goto err;
+ break;
+ case STV090x_DEMODULATOR_1:
+ /* power on ADC 2 */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR3);
+ STV090x_SETFIELD(reg, ADC2_PON_FIELD, 1);
+ if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
+ goto err;
+ /* power on DiSEqC 2 */
+ reg = stv090x_read_reg(state, STV090x_TSTTNR4);
+ STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 1);
+ if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
+ goto err;
+
+ /* activate clocks */
+ reg = stv090x_read_reg(state, STV090x_STOPCLK1);
+ /* packet delineator 2 clock */
+ STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 0);
+ /* ADC 2 clock */
+ STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 0);
+ /* FEC clock */
+ STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
+ if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
+ goto err;
+ reg = stv090x_read_reg(state, STV090x_STOPCLK2);
+ /* sampling 2 clock */
+ STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 0);
+ /* viterbi 2 clock */
+ STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 0);
+ /* TS clock */
+ STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
+ if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
+ goto err;
+ break;
+
+ default:
+ dprintk(FE_ERROR, 1, "Wrong demodulator!");
+ break;
+ }
+
+ mutex_unlock(&state->internal->demod_lock);
return 0;
err:
+ mutex_unlock(&state->internal->demod_lock);
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
@@ -4622,20 +4791,10 @@ struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
mutex_init(&state->internal->demod_lock);
mutex_init(&state->internal->tuner_lock);
- if (stv090x_sleep(&state->frontend) < 0) {
- dprintk(FE_ERROR, 1, "Error putting device to sleep");
- goto error;
- }
-
if (stv090x_setup(&state->frontend) < 0) {
dprintk(FE_ERROR, 1, "Error setting up device");
goto error;
}
- if (stv090x_wakeup(&state->frontend) < 0) {
- dprintk(FE_ERROR, 1, "Error waking device");
- goto error;
- }
-
dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x",
state->device == STV0900 ? "STV0900" : "STV0903",
demod,
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-13 12:00:04 +0000