There is RTL2832P devices having extra MN88473 demodulator. This
patch add support for such configuration. Logically MN88473 slave
demodulator is connected to RTL2832 master demodulator, both I2C
bus and TS input. RTL2832 is integrated to RTL2832U and RTL2832P
chips. Chip version RTL2832P has extra TS interface for connecting
slave demodulator.
Signed-off-by: Antti Palosaari <crope@xxxxxx>
---
drivers/media/usb/dvb-usb-v2/Kconfig | 1 +
drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 31 +++++++++++++++++++++++++++++++
drivers/media/usb/dvb-usb-v2/rtl28xxu.h | 3 ++-
3 files changed, 34 insertions(+), 1 deletion(-)
diff --git a/drivers/media/usb/dvb-usb-v2/Kconfig b/drivers/media/usb/dvb-usb-v2/Kconfig
index 9050933..f452a11 100644
--- a/drivers/media/usb/dvb-usb-v2/Kconfig
+++ b/drivers/media/usb/dvb-usb-v2/Kconfig
@@ -131,6 +131,7 @@ config DVB_USB_RTL28XXU
select DVB_RTL2832
select DVB_RTL2832_SDR if (MEDIA_SUBDRV_AUTOSELECT && MEDIA_SDR_SUPPORT)
select DVB_MN88472 if MEDIA_SUBDRV_AUTOSELECT
+ select DVB_MN88473 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_QT1010 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_MT2060 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_MXL5005S if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index e3c20f4..93f8afc 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -25,6 +25,7 @@
#include "rtl2830.h"
#include "rtl2832.h"
#include "mn88472.h"
+#include "mn88473.h"
#include "qt1010.h"
#include "mt2060.h"
@@ -422,6 +423,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
struct rtl28xxu_req req_mn88472 = {0xff38, CMD_I2C_RD, 1, buf};
+ struct rtl28xxu_req req_mn88473 = {0xff38, CMD_I2C_RD, 1, buf};
dev_dbg(&d->udev->dev, "%s:\n", __func__);
@@ -567,6 +569,13 @@ tuner_found:
priv->slave_demod = SLAVE_DEMOD_MN88472;
goto demod_found;
}
+
+ ret = rtl28xxu_ctrl_msg(d, &req_mn88473);
+ if (ret == 0 && buf[0] == 0x03) {
+ dev_dbg(&d->udev->dev, "%s: MN88473 found\n", __func__);
+ priv->slave_demod = SLAVE_DEMOD_MN88473;
+ goto demod_found;
+ }
}
demod_found:
@@ -889,6 +898,28 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
}
priv->i2c_client_slave_demod = client;
+ } else {
+ struct mn88473_config mn88473_config = {};
+
+ mn88473_config.fe = &adap->fe[1];
+ mn88473_config.i2c_wr_max = 22,
+ strlcpy(info.type, "mn88473", I2C_NAME_SIZE);
+ info.addr = 0x18;
+ info.platform_data = &mn88473_config;
+ request_module(info.type);
+ client = i2c_new_device(priv->demod_i2c_adapter, &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ priv->slave_demod = SLAVE_DEMOD_NONE;
+ goto err_slave_demod_failed;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ priv->slave_demod = SLAVE_DEMOD_NONE;
+ goto err_slave_demod_failed;
+ }
+
+ priv->i2c_client_slave_demod = client;
}
/* override init as we want configure RTL2832 as TS input */
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
index 58f2730..9c059ac 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
@@ -62,7 +62,8 @@ struct rtl28xxu_priv {
int (*init)(struct dvb_frontend *fe);
#define SLAVE_DEMOD_NONE 0
#define SLAVE_DEMOD_MN88472 1
- unsigned int slave_demod:1;
+ #define SLAVE_DEMOD_MN88473 2
+ unsigned int slave_demod:2;
};
enum rtl28xxu_chip_id {
--
http://palosaari.fi/
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