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-rw-r--r--drivers/media/usb/dvb-usb-v2/rtl28xxu.c135
-rw-r--r--drivers/media/usb/dvb-usb-v2/rtl28xxu.h4
2 files changed, 108 insertions, 31 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index 5ea52c7616f..d9ee1a9c5cb 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -24,6 +24,7 @@
#include "rtl2830.h"
#include "rtl2832.h"
+#include "mn88472.h"
#include "qt1010.h"
#include "mt2060.h"
@@ -420,6 +421,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
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};
dev_dbg(&d->udev->dev, "%s:\n", __func__);
@@ -449,7 +451,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0xa1) {
priv->tuner = TUNER_RTL2832_FC0012;
priv->tuner_name = "FC0012";
- goto found;
+ goto tuner_found;
}
/* check FC0013 ID register; reg=00 val=a3 */
@@ -457,7 +459,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0xa3) {
priv->tuner = TUNER_RTL2832_FC0013;
priv->tuner_name = "FC0013";
- goto found;
+ goto tuner_found;
}
/* check MT2266 ID register; reg=00 val=85 */
@@ -465,7 +467,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0x85) {
priv->tuner = TUNER_RTL2832_MT2266;
priv->tuner_name = "MT2266";
- goto found;
+ goto tuner_found;
}
/* check FC2580 ID register; reg=01 val=56 */
@@ -473,7 +475,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0x56) {
priv->tuner = TUNER_RTL2832_FC2580;
priv->tuner_name = "FC2580";
- goto found;
+ goto tuner_found;
}
/* check MT2063 ID register; reg=00 val=9e || 9c */
@@ -481,7 +483,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
priv->tuner = TUNER_RTL2832_MT2063;
priv->tuner_name = "MT2063";
- goto found;
+ goto tuner_found;
}
/* check MAX3543 ID register; reg=00 val=38 */
@@ -489,7 +491,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0x38) {
priv->tuner = TUNER_RTL2832_MAX3543;
priv->tuner_name = "MAX3543";
- goto found;
+ goto tuner_found;
}
/* check TUA9001 ID register; reg=7e val=2328 */
@@ -497,7 +499,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
priv->tuner = TUNER_RTL2832_TUA9001;
priv->tuner_name = "TUA9001";
- goto found;
+ goto tuner_found;
}
/* check MXL5007R ID register; reg=d9 val=14 */
@@ -505,7 +507,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0x14) {
priv->tuner = TUNER_RTL2832_MXL5007T;
priv->tuner_name = "MXL5007T";
- goto found;
+ goto tuner_found;
}
/* check E4000 ID register; reg=02 val=40 */
@@ -513,7 +515,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0x40) {
priv->tuner = TUNER_RTL2832_E4000;
priv->tuner_name = "E4000";
- goto found;
+ goto tuner_found;
}
/* check TDA18272 ID register; reg=00 val=c760 */
@@ -521,7 +523,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
priv->tuner = TUNER_RTL2832_TDA18272;
priv->tuner_name = "TDA18272";
- goto found;
+ goto tuner_found;
}
/* check R820T ID register; reg=00 val=69 */
@@ -529,7 +531,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0x69) {
priv->tuner = TUNER_RTL2832_R820T;
priv->tuner_name = "R820T";
- goto found;
+ goto tuner_found;
}
/* check R828D ID register; reg=00 val=69 */
@@ -537,13 +539,37 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
if (ret == 0 && buf[0] == 0x69) {
priv->tuner = TUNER_RTL2832_R828D;
priv->tuner_name = "R828D";
- goto found;
+ goto tuner_found;
}
-
-found:
+tuner_found:
dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
+ /* probe slave demod */
+ if (priv->tuner == TUNER_RTL2832_R828D) {
+ /* power on MN88472 demod on GPIO0 */
+ ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x01, 0x01);
+ if (ret)
+ goto err;
+
+ ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
+ if (ret)
+ goto err;
+
+ ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
+ if (ret)
+ goto err;
+
+ /* check MN88472 answers */
+ ret = rtl28xxu_ctrl_msg(d, &req_mn88472);
+ if (ret == 0 && buf[0] == 0x02) {
+ dev_dbg(&d->udev->dev, "%s: MN88472 found\n", __func__);
+ priv->slave_demod = SLAVE_DEMOD_MN88472;
+ goto demod_found;
+ }
+ }
+
+demod_found:
/* close demod I2C gate */
ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
if (ret < 0)
@@ -818,7 +844,44 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
/* set fe callback */
adap->fe[0]->callback = rtl2832u_frontend_callback;
+ if (priv->slave_demod) {
+ struct i2c_board_info info = {};
+ struct i2c_client *client;
+
+ /*
+ * We continue on reduced mode, without DVB-T2/C, using master
+ * demod, when slave demod fails.
+ */
+ ret = 0;
+
+ /* attach slave demodulator */
+ if (priv->slave_demod == SLAVE_DEMOD_MN88472) {
+ struct mn88472_config mn88472_config = {};
+
+ mn88472_config.fe = &adap->fe[1];
+ mn88472_config.i2c_wr_max = 22,
+ strlcpy(info.type, "mn88472", I2C_NAME_SIZE);
+ info.addr = 0x18;
+ info.platform_data = &mn88472_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;
+ }
+ }
+
return 0;
+err_slave_demod_failed:
err:
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
return ret;
@@ -1024,25 +1087,19 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
&rtl28xxu_rtl2832_r820t_config, NULL);
break;
case TUNER_RTL2832_R828D:
- /* power off mn88472 demod on GPIO0 */
- ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
- if (ret)
- goto err;
-
- ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
- if (ret)
- goto err;
-
- ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
- if (ret)
- goto err;
-
- fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
+ fe = dvb_attach(r820t_attach, adap->fe[0],
+ priv->demod_i2c_adapter,
&rtl2832u_r828d_config);
-
- /* Use tuner to get the signal strength */
adap->fe[0]->ops.read_signal_strength =
adap->fe[0]->ops.tuner_ops.get_rf_strength;
+
+ if (adap->fe[1]) {
+ fe = dvb_attach(r820t_attach, adap->fe[1],
+ priv->demod_i2c_adapter,
+ &rtl2832u_r828d_config);
+ adap->fe[1]->ops.read_signal_strength =
+ adap->fe[1]->ops.tuner_ops.get_rf_strength;
+ }
break;
default:
dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
@@ -1097,11 +1154,19 @@ err:
static void rtl28xxu_exit(struct dvb_usb_device *d)
{
struct rtl28xxu_priv *priv = d->priv;
- struct i2c_client *client = priv->client;
+ struct i2c_client *client;
dev_dbg(&d->udev->dev, "%s:\n", __func__);
/* remove I2C tuner */
+ client = priv->client;
+ if (client) {
+ module_put(client->dev.driver->owner);
+ i2c_unregister_device(client);
+ }
+
+ /* remove I2C slave demod */
+ client = priv->i2c_client_slave_demod;
if (client) {
module_put(client->dev.driver->owner);
i2c_unregister_device(client);
@@ -1235,6 +1300,7 @@ err:
static int rtl2832u_frontend_ctrl(struct dvb_frontend *fe, int onoff)
{
struct dvb_usb_device *d = fe_to_d(fe);
+ struct dvb_usb_adapter *adap = fe_to_adap(fe);
int ret;
u8 val;
@@ -1250,6 +1316,13 @@ static int rtl2832u_frontend_ctrl(struct dvb_frontend *fe, int onoff)
if (ret)
goto err;
+ /* bypass slave demod TS through master demod */
+ if (fe->id == 1 && onoff) {
+ ret = rtl2832_enable_external_ts_if(adap->fe[0]);
+ if (ret)
+ goto err;
+ }
+
return 0;
err:
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
index a26cab10f38..c1b00b9831c 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
@@ -58,6 +58,10 @@ struct rtl28xxu_priv {
struct i2c_adapter *demod_i2c_adapter;
bool rc_active;
struct i2c_client *client;
+ struct i2c_client *i2c_client_slave_demod;
+ #define SLAVE_DEMOD_NONE 0
+ #define SLAVE_DEMOD_MN88472 1
+ unsigned int slave_demod:1;
};
enum rtl28xxu_chip_id {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-25 07:18:07 +0000