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Commit 3553085c authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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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: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 67de3311

drivers/media/video/em28xx/em28xx-cards.c

+24 −0
Original line number Diff line number Diff line
@@ -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);

drivers/media/video/em28xx/em28xx-dvb.c

+29 −0
Original line number Diff line number Diff line
@@ -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");

drivers/media/video/em28xx/em28xx.h

+1 −0
Original line number Diff line number Diff line
@@ -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