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[media] em28xx: support for 1b80:e425 MaxMedia UB425-TC 

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@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Antti Palosaari 2012-03-18 18:09:01 -03:00 committed by Mauro Carvalho Chehab
parent 67de3311a0
commit 3553085cb4
3 changed files with 54 additions and 0 deletions
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24
drivers/media/video/em28xx/em28xx-cards.c
View File

@ -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);

29
drivers/media/video/em28xx/em28xx-dvb.c
View File

@ -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");

1
drivers/media/video/em28xx/em28xx.h
View File

@ -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