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V4L/DVB (6900): cx23885: enable EZ-QAM mode for Hauppauge WinTV HVR-1800

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Add module option 'alt_tuner' disabled by default.

When set to one, the dvb_frontend of HVR1800 will consist of:
s5h1409 demod + tda18271 tuner

When set zero (default), the dvb_frontend of HVR1800 will consist of:
s5h1409 demod + mt2131 tuner

If the tda18271 is used in digital mode, you will not be able to
tune an analog channel at the same time.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky 2007-12-07 01:40:36 -03:00 committed by Mauro Carvalho Chehab
parent 4cd8a7bd65
commit 3ba71d2194
2 changed files with 48 additions and 2 deletions
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3
drivers/media/video/cx23885/cx23885-cards.c
View File

@ -246,7 +246,8 @@ void cx23885_gpio_setup(struct cx23885_dev *dev)
/* GPIO-11-14 cx23417 addr0-3 */
/* GPIO-15-18 cx23417 READY, CS, RD, WR */
/* GPIO-19 IR_RX */
// FIXME: Analog requires the tuner is brought out of reset
cx_set(GP0_IO, 0x00040004); /* Bring the tuner out of reset */
break;
}
}

47
drivers/media/video/cx23885/cx23885-dvb.c
View File

@ -32,6 +32,7 @@
#include "s5h1409.h"
#include "mt2131.h"
#include "tda8290.h"
#include "lgdt330x.h"
#include "xc5000.h"
#include "dvb-pll.h"
@ -45,6 +46,12 @@ static unsigned int debug = 0;
/* ------------------------------------------------------------------ */
static unsigned int alt_tuner;
module_param(alt_tuner, int, 0644);
MODULE_PARM_DESC(alt_tuner, "Enable alternate tuner configuration");
/* ------------------------------------------------------------------ */
static int dvb_buf_setup(struct videobuf_queue *q,
unsigned int *count, unsigned int *size)
{
@ -119,6 +126,15 @@ static struct s5h1409_config hauppauge_generic_config = {
.status_mode = S5H1409_DEMODLOCKING
};
static struct s5h1409_config hauppauge_ezqam_config = {
.demod_address = 0x32 >> 1,
.output_mode = S5H1409_SERIAL_OUTPUT,
.gpio = S5H1409_GPIO_OFF,
.qam_if = 4000,
.inversion = S5H1409_INVERSION_ON,
.status_mode = S5H1409_DEMODLOCKING
};
static struct s5h1409_config hauppauge_hvr1800lp_config = {
.demod_address = 0x32 >> 1,
.output_mode = S5H1409_SERIAL_OUTPUT,
@ -203,7 +219,6 @@ static int dvb_register(struct cx23885_tsport *port)
/* init frontend */
switch (dev->board) {
case CX23885_BOARD_HAUPPAUGE_HVR1250:
case CX23885_BOARD_HAUPPAUGE_HVR1800:
i2c_bus = &dev->i2c_bus[0];
port->dvb.frontend = dvb_attach(s5h1409_attach,
&hauppauge_generic_config,
@ -214,6 +229,33 @@ static int dvb_register(struct cx23885_tsport *port)
&hauppauge_generic_tunerconfig, 0);
}
break;
case CX23885_BOARD_HAUPPAUGE_HVR1800:
i2c_bus = &dev->i2c_bus[0];
switch (alt_tuner) {
case 1:
port->dvb.frontend =
dvb_attach(s5h1409_attach,
&hauppauge_ezqam_config,
&i2c_bus->i2c_adap);
if (port->dvb.frontend != NULL) {
dvb_attach(tda829x_attach, port->dvb.frontend,
&dev->i2c_bus[1].i2c_adap, 0x42,
NULL);
}
break;
case 0:
default:
port->dvb.frontend =
dvb_attach(s5h1409_attach,
&hauppauge_generic_config,
&i2c_bus->i2c_adap);
if (port->dvb.frontend != NULL)
dvb_attach(mt2131_attach, port->dvb.frontend,
&i2c_bus->i2c_adap,
&hauppauge_generic_tunerconfig, 0);
break;
}
break;
case CX23885_BOARD_HAUPPAUGE_HVR1800lp:
i2c_bus = &dev->i2c_bus[0];
port->dvb.frontend = dvb_attach(s5h1409_attach,
@ -284,6 +326,9 @@ static int dvb_register(struct cx23885_tsport *port)
/* Put the analog decoder in standby to keep it quiet */
cx23885_call_i2c_clients(i2c_bus, TUNER_SET_STANDBY, NULL);
if (port->dvb.frontend->ops.analog_ops.standby)
port->dvb.frontend->ops.analog_ops.standby(port->dvb.frontend);
/* register everything */
return videobuf_dvb_register(&port->dvb, THIS_MODULE, port,
&dev->pci->dev);