The QAM standard is set using this scu_command:
SCU_RAM_COMMAND_STANDARD_QAM |
SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM
The driver implements a version that has 4 parameters, however,
Terratec H5 needs to break this into two separate commands, otherwise,
DVB-C doesn't work.
With this fix, scan is now properly working and getting the
channel list:
>>> tune to: 609000000:INVERSION_AUTO:5217000:FEC_3_4:QAM_256
>>> tuning status == 0x00
>>> tuning status == 0x07
>>> tuning status == 0x1f
0x0093 0x0026: pmt_pid 0x0758 (null) -- SporTV2 (running, scrambled)
0x0093 0x0027: pmt_pid 0x0748 (null) -- SporTV (running, scrambled)
0x0093 0x0036: pmt_pid 0x0768 (null) -- FX (running, scrambled)
0x0093 0x0052: pmt_pid 0x0788 (null) -- The History Channel (running, scrambled)
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
diff --git a/drivers/media/dvb/frontends/drxk_hard.c
b/drivers/media/dvb/frontends/drxk_hard.c
index 5745f52..f74a176 100644
--- a/drivers/media/dvb/frontends/drxk_hard.c
+++ b/drivers/media/dvb/frontends/drxk_hard.c
@@ -5389,7 +5389,7 @@ static int SetQAM(struct drxk_state *state, u16
IntermediateFreqkHz,
{
int status;
u8 parameterLen;
- u16 setEnvParameters[5];
+ u16 setEnvParameters[5] = { 0, 0, 0, 0, 0 };
u16 setParamParameters[4] = { 0, 0, 0, 0 };
u16 cmdResult;
@@ -5456,9 +5456,25 @@ static int SetQAM(struct drxk_state *state, u16
IntermediateFreqkHz,
setParamParameters[1] = DRXK_QAM_I12_J17; /* interleave mode */
status = scu_command(state, SCU_RAM_COMMAND_STANDARD_QAM |
SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM, 4, setParamParameters, 1, &cmdResult);
+ if (status < 0) {
+ /* Fall-back to the simpler call */
+ setParamParameters[0] = QAM_TOP_ANNEX_A;
+ if (state->m_OperationMode == OM_QAM_ITU_C)
+ setEnvParameters[0] = QAM_TOP_ANNEX_C; /* Annex */
+ else
+ setEnvParameters[0] = 0;
+
+ status = scu_command(state, SCU_RAM_COMMAND_STANDARD_QAM |
SCU_RAM_COMMAND_CMD_DEMOD_SET_ENV, 1, setEnvParameters, 1, &cmdResult);
if (status < 0)
goto error;
+ setParamParameters[0] = state->m_Constellation; /*
constellation */
+ setParamParameters[1] = DRXK_QAM_I12_J17; /* interleave
mode */
+
+ status = scu_command(state, SCU_RAM_COMMAND_STANDARD_QAM |
SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM, 2, setParamParameters, 1, &cmdResult);
+ }
+ if (status < 0)
+ goto error;
/* STEP 3: enable the system in a mode where the ADC provides valid
signal
setup constellation independent registers */
--
1.7.1
--
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