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[media] drxk: Make the QAM demodulator command parameters configurable 

Currently there are two different implementations (in the firmware) for
the QAM demodulator command: one takes 4 and the other takes 2
parameters. The driver shows an error in dmesg When using the
4-parameter command with firmware that implements the 2-parameter
command. Unfortunately this happens every time when chaning the
frequency (on DVB-C).

This patch simply makes configurable, how many command parameters will
be used. All existing drxk_config instances using the "drxk_a3.mc" were
updated because this firmware is the only loadable firmware where the
QAM demodulator command takes 4 parameters. Some firmwares in the ROM
might also use it. The drxk instances in the em28xx-dvb driver were also
updated to silence the warnings.

If no qam_demod_parameter_count is given in the drxk_config struct, then
the correct number of parameters will be auto-detected.

[mchehab@redhat.com: Fix a small CodingStyle issue at one comment]
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Martin Blumenstingl 2012-07-04 17:36:55 -03:00 committed by Mauro Carvalho Chehab
parent 22a09b439a
commit 9e23f50a76
6 changed files with 105 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/media/dvb/ddbridge/ddbridge-core.c
View File

@ -578,6 +578,7 @@ static int demod_attach_drxk(struct ddb_input *input)
memset(&config, 0, sizeof(config));
config.microcode_name = "drxk_a3.mc";
config.qam_demod_parameter_count = 4;
config.adr = 0x29 + (input->nr & 1);
fe = input->fe = dvb_attach(drxk_attach, &config, i2c);

11
drivers/media/dvb/frontends/drxk.h
View File

@ -20,6 +20,14 @@
* means that 1=DVBC, 0 = DVBT. Zero means the opposite.
* @mpeg_out_clk_strength: DRXK Mpeg output clock drive strength.
* @microcode_name: Name of the firmware file with the microcode
* @qam_demod_parameter_count: The number of parameters used for the command
* to set the demodulator parameters. All
* firmwares are using the 2-parameter commmand.
* An exception is the "drxk_a3.mc" firmware,
* which uses the 4-parameter command.
* A value of 0 (default) or lower indicates that
* the correct number of parameters will be
* automatically detected.
*
* On the *_gpio vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is
* UIO-3.
@ -38,7 +46,8 @@ struct drxk_config {
u8 mpeg_out_clk_strength;
int chunk_size;
const char *microcode_name;
const char *microcode_name;
int qam_demod_parameter_count;
};
#if defined(CONFIG_DVB_DRXK) || (defined(CONFIG_DVB_DRXK_MODULE) \

114
drivers/media/dvb/frontends/drxk_hard.c
View File

@ -5415,12 +5415,67 @@ static int GetQAMLockStatus(struct drxk_state *state, u32 *pLockStatus)
#define QAM_LOCKRANGE__M 0x10
#define QAM_LOCKRANGE_NORMAL 0x10
static int QAMDemodulatorCommand(struct drxk_state *state,
int numberOfParameters)
{
int status;
u16 cmdResult;
u16 setParamParameters[4] = { 0, 0, 0, 0 };
setParamParameters[0] = state->m_Constellation; /* modulation */
setParamParameters[1] = DRXK_QAM_I12_J17; /* interleave mode */
if (numberOfParameters == 2) {
u16 setEnvParameters[1] = { 0 };
if (state->m_OperationMode == OM_QAM_ITU_C)
setEnvParameters[0] = QAM_TOP_ANNEX_C;
else
setEnvParameters[0] = QAM_TOP_ANNEX_A;
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;
status = scu_command(state,
SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM,
numberOfParameters, setParamParameters,
1, &cmdResult);
} else if (numberOfParameters == 4) {
if (state->m_OperationMode == OM_QAM_ITU_C)
setParamParameters[2] = QAM_TOP_ANNEX_C;
else
setParamParameters[2] = QAM_TOP_ANNEX_A;
setParamParameters[3] |= (QAM_MIRROR_AUTO_ON);
/* Env parameters */
/* check for LOCKRANGE Extented */
/* setParamParameters[3] |= QAM_LOCKRANGE_NORMAL; */
status = scu_command(state,
SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM,
numberOfParameters, setParamParameters,
1, &cmdResult);
} else {
printk(KERN_WARNING "drxk: Unknown QAM demodulator parameter "
"count %d\n", numberOfParameters);
}
error:
if (status < 0)
printk(KERN_WARNING "drxk: Warning %d on %s\n",
status, __func__);
return status;
}
static int SetQAM(struct drxk_state *state, u16 IntermediateFreqkHz,
s32 tunerFreqOffset)
{
int status;
u16 setParamParameters[4] = { 0, 0, 0, 0 };
u16 cmdResult;
int qamDemodParamCount = state->qam_demod_parameter_count;
dprintk(1, "\n");
/*
@ -5472,34 +5527,40 @@ static int SetQAM(struct drxk_state *state, u16 IntermediateFreqkHz,
}
if (status < 0)
goto error;
setParamParameters[0] = state->m_Constellation; /* modulation */
setParamParameters[1] = DRXK_QAM_I12_J17; /* interleave mode */
if (state->m_OperationMode == OM_QAM_ITU_C)
setParamParameters[2] = QAM_TOP_ANNEX_C;
else
setParamParameters[2] = QAM_TOP_ANNEX_A;
setParamParameters[3] |= (QAM_MIRROR_AUTO_ON);
/* Env parameters */
/* check for LOCKRANGE Extented */
/* setParamParameters[3] |= QAM_LOCKRANGE_NORMAL; */
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 */
if (state->m_OperationMode == OM_QAM_ITU_C)
setParamParameters[0] = QAM_TOP_ANNEX_C;
else
setParamParameters[0] = QAM_TOP_ANNEX_A;
status = scu_command(state, SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_ENV, 1, setParamParameters, 1, &cmdResult);
if (status < 0)
goto error;
setParamParameters[0] = state->m_Constellation; /* modulation */
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);
/* Use the 4-parameter if it's requested or we're probing for
* the correct command. */
if (state->qam_demod_parameter_count == 4
|| !state->qam_demod_parameter_count) {
qamDemodParamCount = 4;
status = QAMDemodulatorCommand(state, qamDemodParamCount);
}
if (status < 0)
/* Use the 2-parameter command if it was requested or if we're
* probing for the correct command and the 4-parameter command
* failed. */
if (state->qam_demod_parameter_count == 2
|| (!state->qam_demod_parameter_count && status < 0)) {
qamDemodParamCount = 2;
status = QAMDemodulatorCommand(state, qamDemodParamCount);
}
if (status < 0) {
dprintk(1, "Could not set demodulator parameters. Make "
"sure qam_demod_parameter_count (%d) is correct for "
"your firmware (%s).\n",
state->qam_demod_parameter_count,
state->microcode_name);
goto error;
} else if (!state->qam_demod_parameter_count) {
dprintk(1, "Auto-probing the correct QAM demodulator command "
"parameters was successful - using %d parameters.\n",
qamDemodParamCount);
/* One of our commands was successful. We don't need to
/* auto-probe anymore, now that we got the correct command. */
state->qam_demod_parameter_count = qamDemodParamCount;
}
/*
* STEP 3: enable the system in a mode where the ADC provides valid
@ -6502,6 +6563,7 @@ struct dvb_frontend *drxk_attach(const struct drxk_config *config,
state->demod_address = adr;
state->single_master = config->single_master;
state->microcode_name = config->microcode_name;
state->qam_demod_parameter_count = config->qam_demod_parameter_count;
state->no_i2c_bridge = config->no_i2c_bridge;
state->antenna_gpio = config->antenna_gpio;
state->antenna_dvbt = config->antenna_dvbt;

1
drivers/media/dvb/frontends/drxk_hard.h
View File

@ -353,6 +353,7 @@ struct drxk_state {
const char *microcode_name;
struct completion fw_wait_load;
const struct firmware *fw;
int qam_demod_parameter_count;
};
#define NEVER_LOCK 0

1
drivers/media/dvb/ngene/ngene-cards.c
View File

@ -217,6 +217,7 @@ static int demod_attach_drxk(struct ngene_channel *chan,
memset(&config, 0, sizeof(config));
config.microcode_name = "drxk_a3.mc";
config.qam_demod_parameter_count = 4;
config.adr = 0x29 + (chan->number ^ 2);
chan->fe = dvb_attach(drxk_attach, &config, i2c);

4
drivers/media/video/em28xx/em28xx-dvb.c
View File

@ -315,6 +315,7 @@ static struct drxk_config terratec_h5_drxk = {
.single_master = 1,
.no_i2c_bridge = 1,
.microcode_name = "dvb-usb-terratec-h5-drxk.fw",
.qam_demod_parameter_count = 2,
};
static struct drxk_config hauppauge_930c_drxk = {
@ -323,6 +324,7 @@ static struct drxk_config hauppauge_930c_drxk = {
.no_i2c_bridge = 1,
.microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
.chunk_size = 56,
.qam_demod_parameter_count = 2,
};
struct drxk_config terratec_htc_stick_drxk = {
@ -331,6 +333,7 @@ struct drxk_config terratec_htc_stick_drxk = {
.no_i2c_bridge = 1,
.microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
.chunk_size = 54,
.qam_demod_parameter_count = 2,
/* Required for the antenna_gpio to disable LNA. */
.antenna_dvbt = true,
/* The windows driver uses the same. This will disable LNA. */
@ -347,6 +350,7 @@ static struct drxk_config pctv_520e_drxk = {
.adr = 0x29,
.single_master = 1,
.microcode_name = "dvb-demod-drxk-pctv.fw",
.qam_demod_parameter_count = 2,
.chunk_size = 58,
.antenna_dvbt = true, /* disable LNA */
.antenna_gpio = (1 << 2), /* disable LNA */