Hardware is based of:
Empia EM2874B
Micronas DRX 3913KA2
NXP TDA18271HDC2
Only DVB-C supported currently since missing firmware.
According to my tests, DRX 3913KA2 demodulator requires firmware
in order to support DVB-T mode.
Signed-off-by: Antti Palosaari <crope@xxxxxx>
---
drivers/media/video/em28xx/em28xx-cards.c | 24 ++++++++++++++++++++++++
drivers/media/video/em28xx/em28xx-dvb.c | 29 +++++++++++++++++++++++++++++
drivers/media/video/em28xx/em28xx.h | 1 +
3 files changed, 54 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index ce1b60f..d5c9613 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -353,6 +353,17 @@ static struct em28xx_reg_seq hauppauge_930c_digital[] = {
};
#endif
+/* 1b80:e425 MaxMedia UB425-TC
+ * GPIO_6 - demod reset, 0=active
+ * GPIO_7 - LED, 0=active
+ */
+static struct em28xx_reg_seq maxmedia_ub425_tc[] = {
+ {EM2874_R80_GPIO, 0x83, 0xff, 100},
+ {EM2874_R80_GPIO, 0xc3, 0xff, 100}, /* GPIO_6 = 1 */
+ {EM2874_R80_GPIO, 0x43, 0xff, 000}, /* GPIO_7 = 0 */
+ {-1, -1, -1, -1},
+};
+
/*
* Board definitions
*/
@@ -1908,6 +1919,17 @@ struct em28xx_board em28xx_boards[] = {
.amux = EM28XX_AMUX_LINE_IN,
} },
},
+ /* 1b80:e425 MaxMedia UB425-TC
+ * Empia EM2874B + Micronas DRX 3913KA2 + NXP TDA18271HDC2 */
+ [EM2874_BOARD_MAXMEDIA_UB425_TC] = {
+ .name = "MaxMedia UB425-TC",
+ .tuner_type = TUNER_ABSENT,
+ .tuner_gpio = maxmedia_ub425_tc,
+ .has_dvb = 1,
+ .i2c_speed = EM2874_I2C_SECONDARY_BUS_SELECT |
+ EM28XX_I2C_CLK_WAIT_ENABLE |
+ EM28XX_I2C_FREQ_400_KHZ,
+ },
};
const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
@@ -2059,6 +2081,8 @@ struct usb_device_id em28xx_id_table[] = {
.driver_info = EM2860_BOARD_HT_VIDBOX_NW03 },
{ USB_DEVICE(0x1b80, 0xe309), /* Sveon STV40 */
.driver_info = EM2860_BOARD_EASYCAP },
+ { USB_DEVICE(0x1b80, 0xe425),
+ .driver_info = EM2874_BOARD_MAXMEDIA_UB425_TC },
{ },
};
MODULE_DEVICE_TABLE(usb, em28xx_id_table);
diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c
index fbd9010..0b3e301 100644
--- a/drivers/media/video/em28xx/em28xx-dvb.c
+++ b/drivers/media/video/em28xx/em28xx-dvb.c
@@ -325,6 +325,12 @@ struct drxk_config hauppauge_930c_drxk = {
.chunk_size = 56,
};
+struct drxk_config maxmedia_ub425_tc_drxk = {
+ .adr = 0x29,
+ .single_master = 1,
+ .no_i2c_bridge = 1,
+};
+
static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
{
struct em28xx_dvb *dvb = fe->sec_priv;
@@ -936,6 +942,29 @@ static int em28xx_dvb_init(struct em28xx *dev)
dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap,
&em28xx_a8293_config);
break;
+ case EM2874_BOARD_MAXMEDIA_UB425_TC:
+ /* attach demodulator */
+ dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
+ &dev->i2c_adap);
+
+ if (dvb->fe[0]) {
+ /* disable I2C-gate */
+ dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
+
+ /* attach tuner */
+ if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0],
+ &dev->i2c_adap, 0x60)) {
+ dvb_frontend_detach(dvb->fe[0]);
+ result = -EINVAL;
+ goto out_free;
+ }
+ }
+
+ /* TODO: we need drx-3913k firmware in order to support DVB-T */
+ em28xx_info("MaxMedia UB425-TC: only DVB-C supported by that " \
+ "driver version\n");
+
+ break;
default:
em28xx_errdev("/2: The frontend of your DVB/ATSC card"
" isn't supported yet\n");
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h
index 2ae6815..59cdfa6 100644
--- a/drivers/media/video/em28xx/em28xx.h
+++ b/drivers/media/video/em28xx/em28xx.h
@@ -125,6 +125,7 @@
#define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81
#define EM2884_BOARD_CINERGY_HTC_STICK 82
#define EM2860_BOARD_HT_VIDBOX_NW03 83
+#define EM2874_BOARD_MAXMEDIA_UB425_TC 84
/* Limits minimum and default number of buffers */
#define EM28XX_MIN_BUF 4
--
1.7.7.6
--
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