It works only for HVR-4400/HVR-5500.
For WinTV-HVR-930C-HD it fails with bad/no reception
for unknown reasons.
Signed-off-by: Matthias Schwarzott <zzam@xxxxxxxxxx>
---
drivers/media/dvb-frontends/si2165.c | 132 +++++++++++++++++++++++++++++++----
1 file changed, 120 insertions(+), 12 deletions(-)
diff --git a/drivers/media/dvb-frontends/si2165.c b/drivers/media/dvb-frontends/si2165.c
index c87d927..97a6eac 100644
--- a/drivers/media/dvb-frontends/si2165.c
+++ b/drivers/media/dvb-frontends/si2165.c
@@ -760,7 +760,7 @@ static int si2165_set_oversamp(struct si2165_state *state, u32 dvb_rate)
do_div(oversamp, dvb_rate);
reg_value = oversamp & 0x3fffffff;
- /* oversamp, usbdump contained 0x03100000; */
+ dprintk("%s: Write oversamp=%#x\n", __func__, reg_value);
return si2165_writereg32(state, 0x00e4, reg_value);
}
@@ -823,7 +823,7 @@ static const struct si2165_reg_value_pair dvbt_regs[] = {
{ 0x0387, 0x00 }
};
-static int si2165_set_parameters(struct dvb_frontend *fe)
+static int si2165_set_frontend_dvbt(struct dvb_frontend *fe)
{
int ret;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
@@ -851,9 +851,6 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
if (ret < 0)
return ret;
- ret = si2165_set_if_freq_shift(state);
- if (ret < 0)
- return ret;
ret = si2165_writereg8(state, 0x08f8, 0x00);
if (ret < 0)
return ret;
@@ -874,6 +871,110 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
if (ret < 0)
return ret;
+ return 0;
+}
+
+static const struct si2165_reg_value_pair dvbc_regs[] = {
+ /* agc2 */
+ { 0x016e, 0x50 },
+ { 0x016c, 0x0e },
+ { 0x016d, 0x10 },
+ /* agc */
+ { 0x015b, 0x03 },
+ { 0x0150, 0x68 },
+ /* agc */
+ { 0x01a0, 0x68 },
+ { 0x01c8, 0x50 },
+
+ { 0x0278, 0x0d },
+
+ { 0x023a, 0x05 },
+ { 0x0261, 0x09 },
+ REG16(0x0350, 0x3e80),
+ { 0x02f4, 0x00 }
+};
+
+static int si2165_set_frontend_dvbc(struct dvb_frontend *fe)
+{
+ struct si2165_state *state = fe->demodulator_priv;
+ int ret;
+ struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+ const u32 dvb_rate = p->symbol_rate;
+ const u32 bw_hz = p->bandwidth_hz;
+
+ if (!state->has_dvbc)
+ return -EINVAL;
+
+ if (dvb_rate == 0)
+ return -EINVAL;
+
+ /* standard = DVB-C */
+ ret = si2165_writereg8(state, 0x00ec, 0x05);
+ if (ret < 0)
+ return ret;
+ ret = si2165_adjust_pll_divl(state, 14);
+ if (ret < 0)
+ return ret;
+
+ ret = si2165_writereg8(state, 0x08f8, 0x00);
+ if (ret < 0)
+ return ret;
+
+ /* Oversampling */
+ ret = si2165_set_oversamp(state, dvb_rate);
+ if (ret < 0)
+ return ret;
+
+ ret = si2165_write_reg_list(state, dvbc_regs, ARRAY_SIZE(dvbc_regs));
+ if (ret < 0)
+ return ret;
+
+ /* dsp_addr_jump */
+ ret = si2165_writereg32(state, 0x0348, 0xf4000000);
+ if (ret < 0)
+ return ret;
+
+ si2165_writereg32(state, 0x00c4, bw_hz);
+ si2165_writereg8(state, 0x00cb, 0x01);
+ si2165_writereg8(state, 0x00c0, 0x00);
+ si2165_writereg16(state, 0x024c, 0x0000);
+ si2165_writereg16(state, 0x027c, 0x0000);
+ si2165_writereg8(state, 0x0232, 0x03);
+ si2165_writereg8(state, 0x02f4, 0x0b);
+ si2165_writereg8(state, 0x00c0, 0x00);
+ si2165_writereg8(state, 0x018b, 0x00);
+
+ return 0;
+}
+
+static int si2165_set_frontend(struct dvb_frontend *fe)
+{
+ struct si2165_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+ u32 delsys = p->delivery_system;
+ int ret;
+ u8 val[3];
+
+ /* initial setting of if freq shift */
+ ret = si2165_set_if_freq_shift(state);
+ if (ret < 0)
+ return ret;
+
+ switch (delsys) {
+ case SYS_DVBT:
+ ret = si2165_set_frontend_dvbt(fe);
+ if (ret < 0)
+ return ret;
+ break;
+ case SYS_DVBC_ANNEX_A:
+ ret = si2165_set_frontend_dvbc(fe);
+ if (ret < 0)
+ return ret;
+ break;
+ default:
+ return -EINVAL;
+ }
+
if (fe->ops.tuner_ops.set_params)
fe->ops.tuner_ops.set_params(fe);
@@ -889,6 +990,7 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
ret = si2165_writereg8(state, 0x0341, 0x00);
if (ret < 0)
return ret;
+
/* reset all */
ret = si2165_writereg8(state, 0x00c0, 0x00);
if (ret < 0)
@@ -902,7 +1004,7 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
ret = si2165_write_reg_list(state, agc_rewrite,
ARRAY_SIZE(agc_rewrite));
if (ret < 0)
- goto error;
+ return ret;
/* start_synchro */
ret = si2165_writereg8(state, 0x02e0, 0x01);
@@ -927,7 +1029,12 @@ static void si2165_release(struct dvb_frontend *fe)
static struct dvb_frontend_ops si2165_ops = {
.info = {
.name = "Silicon Labs ",
- .caps = FE_CAN_FEC_1_2 |
+ /* For DVB-C */
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 7200000,
+ /* For DVB-T */
+ .frequency_stepsize = 166667,
+ .caps = FE_CAN_FEC_1_2 |
FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 |
@@ -940,7 +1047,6 @@ static struct dvb_frontend_ops si2165_ops = {
FE_CAN_QAM_128 |
FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
- FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_HIERARCHY_AUTO |
FE_CAN_MUTE_TS |
@@ -953,7 +1059,7 @@ static struct dvb_frontend_ops si2165_ops = {
.init = si2165_init,
.sleep = si2165_sleep,
- .set_frontend = si2165_set_parameters,
+ .set_frontend = si2165_set_frontend,
.read_status = si2165_read_status,
.release = si2165_release,
@@ -1052,9 +1158,11 @@ struct dvb_frontend *si2165_attach(const struct si2165_config *config,
strlcat(state->frontend.ops.info.name, " DVB-T",
sizeof(state->frontend.ops.info.name));
}
- if (state->has_dvbc)
- dev_warn(&state->i2c->dev, "%s: DVB-C is not yet supported.\n",
- KBUILD_MODNAME);
+ if (state->has_dvbc) {
+ state->frontend.ops.delsys[n++] = SYS_DVBC_ANNEX_A;
+ strlcat(state->frontend.ops.info.name, " DVB-C",
+ sizeof(state->frontend.ops.info.name));
+ }
return &state->frontend;
--
2.6.3
--
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