Commit 94c17334 authored by Matthias Schwarzott's avatar Matthias Schwarzott Committed by Mauro Carvalho Chehab

[media] si2165: Add DVB-C support for HVR-4400/HVR-5500

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: default avatarMatthias Schwarzott <zzam@gentoo.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 3b0c9807
......@@ -858,6 +858,71 @@ static int si2165_set_frontend_dvbt(struct dvb_frontend *fe)
return 0;
}
static const struct si2165_reg_value_pair dvbc_regs[] = {
/* standard = DVB-C */
{ 0x00ec, 0x05 },
{ 0x08f8, 0x00 },
/* 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 },
{ 0x00cb, 0x01 },
REG16(0x024c, 0x0000),
REG16(0x027c, 0x0000),
{ 0x0232, 0x03 },
{ 0x02f4, 0x0b },
{ 0x018b, 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;
ret = si2165_adjust_pll_divl(state, 14);
if (ret < 0)
return ret;
/* Oversampling */
ret = si2165_set_oversamp(state, dvb_rate);
if (ret < 0)
return ret;
ret = si2165_writereg32(state, 0x00c4, bw_hz);
if (ret < 0)
return ret;
ret = si2165_write_reg_list(state, dvbc_regs, ARRAY_SIZE(dvbc_regs));
if (ret < 0)
return ret;
return 0;
}
static const struct si2165_reg_value_pair agc_rewrite[] = {
{ 0x012a, 0x46 },
{ 0x012c, 0x00 },
......@@ -885,6 +950,11 @@ static int si2165_set_frontend(struct dvb_frontend *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;
}
......@@ -948,6 +1018,11 @@ static void si2165_release(struct dvb_frontend *fe)
static struct dvb_frontend_ops si2165_ops = {
.info = {
.name = "Silicon Labs ",
/* 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 |
......@@ -961,7 +1036,6 @@ 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 |
......@@ -1073,9 +1147,11 @@ struct dvb_frontend *si2165_attach(const struct si2165_config *config,
strlcat(state->fe.ops.info.name, " DVB-T",
sizeof(state->fe.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->fe.ops.delsys[n++] = SYS_DVBC_ANNEX_A;
strlcat(state->fe.ops.info.name, " DVB-C",
sizeof(state->fe.ops.info.name));
}
return &state->fe;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment