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[media] rtl28xxu: add support for Rafael Micro r820t 

This tuner is used on some rtl2882 dongles. Add it to the driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tested-by: Antti Palosaari <crope@iki.fi>
This commit is contained in:
Mauro Carvalho Chehab 2013-04-06 09:40:11 -03:00
parent a80abc58fe
commit 6889ab2a25
3 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/media/usb/dvb-usb-v2/Kconfig
View File

@ -143,6 +143,7 @@ config DVB_USB_RTL28XXU
select MEDIA_TUNER_FC0013 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_E4000 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_FC2580 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_R820T if MEDIA_SUBDRV_AUTOSELECT
help
Say Y here to support the Realtek RTL28xxU DVB USB receiver.

30
drivers/media/usb/dvb-usb-v2/rtl28xxu.c
View File

@ -33,6 +33,7 @@
#include "e4000.h"
#include "fc2580.h"
#include "tua9001.h"
#include "r820t.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
@ -375,6 +376,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 5, buf};
dev_dbg(&d->udev->dev, "%s:\n", __func__);
@ -479,6 +481,14 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
goto found;
}
/* check R820T by reading tuner stats at I2C addr 0x1a */
ret = rtl28xxu_ctrl_msg(d, &req_r820t);
if (ret == 0) {
priv->tuner = TUNER_RTL2832_R820T;
priv->tuner_name = "R820T";
goto found;
}
found:
dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
@ -589,6 +599,12 @@ static struct rtl2832_config rtl28xxu_rtl2832_e4000_config = {
.tuner = TUNER_RTL2832_E4000,
};
static struct rtl2832_config rtl28xxu_rtl2832_r820t_config = {
.i2c_addr = 0x10,
.xtal = 28800000,
.tuner = TUNER_RTL2832_R820T,
};
static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
int cmd, int arg)
{
@ -728,6 +744,9 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
case TUNER_RTL2832_E4000:
rtl2832_config = &rtl28xxu_rtl2832_e4000_config;
break;
case TUNER_RTL2832_R820T:
rtl2832_config = &rtl28xxu_rtl2832_r820t_config;
break;
default:
dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
KBUILD_MODNAME, priv->tuner_name);
@ -840,6 +859,13 @@ static const struct fc0012_config rtl2832u_fc0012_config = {
.xtal_freq = FC_XTAL_28_8_MHZ,
};
static const struct r820t_config rtl2832u_r820t_config = {
.i2c_addr = 0x1a,
.xtal = 28800000,
.max_i2c_msg_len = 2,
.rafael_chip = CHIP_R820T,
};
static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
{
int ret;
@ -889,6 +915,10 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
fe = dvb_attach(tua9001_attach, adap->fe[0], &d->i2c_adap,
&rtl2832u_tua9001_config);
break;
case TUNER_RTL2832_R820T:
fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
&rtl2832u_r820t_config);
break;
default:
fe = NULL;
dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,

1
drivers/media/usb/dvb-usb-v2/rtl28xxu.h
View File

@ -82,6 +82,7 @@ enum rtl28xxu_tuner {
TUNER_RTL2832_E4000,
TUNER_RTL2832_TDA18272,
TUNER_RTL2832_FC0013,
TUNER_RTL2832_R820T,
};
struct rtl28xxu_req {