[media] em28xx: support for 2013:0251 PCTV QuatroStick nano (520e)
Hardware is based of: Empia EM2884 Micronas DRX 3926K NXP TDA18271HDC2 ... + analog parts. Analog is not supported currently. Only DVB-T and DVB-C. There seems to be still problems for locking DVB-C channels which have strong signal. Attenuator helps. I think it is demodulator IF/RF AGC issue. Lets fix it later. Patches are welcome. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Antti Palosaari
Mauro Carvalho Chehab
parent
02bbb814d8
commit
c247d7b107
3 changed files with 81 additions and 0 deletions
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@ -364,6 +364,20 @@ static struct em28xx_reg_seq maxmedia_ub425_tc[] = {
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{-1, -1, -1, -1},
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};
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/* 2013:0251 PCTV QuatroStick nano (520e)
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* GPIO_2: decoder reset, 0=active
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* GPIO_4: decoder suspend, 0=active
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* GPIO_6: demod reset, 0=active
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* GPIO_7: LED, 1=active
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*/
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static struct em28xx_reg_seq pctv_520e[] = {
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{EM2874_R80_GPIO, 0x10, 0xff, 100},
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{EM2874_R80_GPIO, 0x14, 0xff, 100}, /* GPIO_2 = 1 */
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{EM2874_R80_GPIO, 0x54, 0xff, 050}, /* GPIO_6 = 1 */
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{EM2874_R80_GPIO, 0xd4, 0xff, 000}, /* GPIO_7 = 1 */
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{ -1, -1, -1, -1},
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};
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/*
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* Board definitions
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*/
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@ -1930,6 +1944,18 @@ struct em28xx_board em28xx_boards[] = {
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EM28XX_I2C_CLK_WAIT_ENABLE |
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EM28XX_I2C_FREQ_400_KHZ,
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},
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/* 2013:0251 PCTV QuatroStick nano (520e)
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* Empia EM2884 + Micronas DRX 3926K + NXP TDA18271HDC2 */
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[EM2884_BOARD_PCTV_520E] = {
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.name = "PCTV QuatroStick nano (520e)",
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.tuner_type = TUNER_ABSENT,
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.tuner_gpio = pctv_520e,
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.has_dvb = 1,
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.ir_codes = RC_MAP_PINNACLE_PCTV_HD,
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.i2c_speed = EM2874_I2C_SECONDARY_BUS_SELECT |
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EM28XX_I2C_CLK_WAIT_ENABLE |
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EM28XX_I2C_FREQ_400_KHZ,
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},
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};
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const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
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@ -2083,6 +2109,8 @@ struct usb_device_id em28xx_id_table[] = {
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.driver_info = EM2860_BOARD_EASYCAP },
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{ USB_DEVICE(0x1b80, 0xe425),
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.driver_info = EM2874_BOARD_MAXMEDIA_UB425_TC },
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{ USB_DEVICE(0x2013, 0x0251),
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.driver_info = EM2884_BOARD_PCTV_520E },
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{ },
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};
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MODULE_DEVICE_TABLE(usb, em28xx_id_table);
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@ -331,6 +331,13 @@ struct drxk_config maxmedia_ub425_tc_drxk = {
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.no_i2c_bridge = 1,
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};
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struct drxk_config pctv_520e_drxk = {
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.adr = 0x29,
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.single_master = 1,
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.microcode_name = "dvb-demod-drxk-pctv.fw",
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.chunk_size = 58,
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};
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static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
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{
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struct em28xx_dvb *dvb = fe->sec_priv;
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@ -464,6 +471,33 @@ static void terratec_h5_init(struct em28xx *dev)
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em28xx_gpio_set(dev, terratec_h5_end);
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};
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static void pctv_520e_init(struct em28xx *dev)
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{
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/*
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* Init TDA8295(?) analog demodulator. Looks like I2C traffic to
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* digital demodulator and tuner are routed via TDA8295.
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*/
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int i;
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struct {
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unsigned char r[4];
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int len;
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} regs[] = {
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{{ 0x06, 0x02, 0x00, 0x31 }, 4},
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{{ 0x01, 0x02 }, 2},
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{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
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{{ 0x01, 0x00 }, 2},
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{{ 0x01, 0x00, 0xff, 0xaf }, 4},
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{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
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{{ 0x01, 0x00 }, 2},
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{{ 0x01, 0x00, 0x73, 0xaf }, 4},
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};
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dev->i2c_client.addr = 0x82 >> 1; /* 0x41 */
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for (i = 0; i < ARRAY_SIZE(regs); i++)
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i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
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};
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static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
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{
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/* Values extracted from a USB trace of the Terratec Windows driver */
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@ -964,6 +998,24 @@ static int em28xx_dvb_init(struct em28xx *dev)
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em28xx_info("MaxMedia UB425-TC: only DVB-C supported by that " \
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"driver version\n");
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break;
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case EM2884_BOARD_PCTV_520E:
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pctv_520e_init(dev);
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/* attach demodulator */
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dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
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&dev->i2c_adap);
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if (dvb->fe[0]) {
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/* attach tuner */
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if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
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&dev->i2c_adap,
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&em28xx_cxd2820r_tda18271_config)) {
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dvb_frontend_detach(dvb->fe[0]);
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result = -EINVAL;
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goto out_free;
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}
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}
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break;
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default:
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em28xx_errdev("/2: The frontend of your DVB/ATSC card"
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@ -126,6 +126,7 @@
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#define EM2884_BOARD_CINERGY_HTC_STICK 82
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#define EM2860_BOARD_HT_VIDBOX_NW03 83
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#define EM2874_BOARD_MAXMEDIA_UB425_TC 84
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#define EM2884_BOARD_PCTV_520E 85
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/* Limits minimum and default number of buffers */
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#define EM28XX_MIN_BUF 4
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