From c34c78838f02693a70808e38309629e85aa50266 Mon Sep 17 00:00:00 2001

From: Jarod Wilson <jarod@redhat.com>

Date: Thu, 20 May 2010 10:03:13 -0400

Subject: [PATCH] dvb: add support for kworld 340u and ub435-q to em28xx-dvb

This adds support for the KWorld PlusTV 340U and KWorld UB345-Q ATSC

sticks, which are really the same device. The sticks have an eMPIA

em2870 usb bridge chipset, an LG Electronics LGDT3304 ATSC/QAM

demodulator and an NXP TDA18271HD tuner -- early versions of the 340U

have a a TDA18271HD/C1, later models and the UB435-Q have a C2.

The stick has been tested succesfully with both VSB_8 and QAM_256 signals.

Its using lgdt3304 support added to the lgdt3305 driver by a prior patch,

rather than the current lgdt3304 driver, as its severely lacking in

functionality by comparison (see said patch for details).

Signed-off-by: Jarod Wilson <jarod@redhat.com>

---

 drivers/media/video/em28xx/em28xx-cards.c |   28 ++++++++++++++++++++++++

 drivers/media/video/em28xx/em28xx-dvb.c   |   33 +++++++++++++++++++++++++++++

 drivers/media/video/em28xx/em28xx.h       |    1 +

 3 files changed, 62 insertions(+), 0 deletions(-)

diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c

index b0fb083..6312e76 100644

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

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

@@ -158,6 +158,22 @@ static struct em28xx_reg_seq evga_indtube_digital[] = {

 	{ -1,			-1,	-1,		-1},

 };

+/*

+ * KWorld PlusTV 340U and UB435-Q (ATSC) GPIOs map:

+ * EM_GPIO_0 - currently unknown

+ * EM_GPIO_1 - LED disable/enable (1 = off, 0 = on)

+ * EM_GPIO_2 - currently unknown

+ * EM_GPIO_3 - currently unknown

+ * EM_GPIO_4 - TDA18271HD/C1 tuner (1 = active, 0 = in reset)

+ * EM_GPIO_5 - LGDT3304 ATSC/QAM demod (1 = active, 0 = in reset)

+ * EM_GPIO_6 - currently unknown

+ * EM_GPIO_7 - currently unknown

+ */

+static struct em28xx_reg_seq kworld_a340_digital[] = {

+	{EM28XX_R08_GPIO,	0x6d,		~EM_GPIO_4,	10},

+	{ -1,			-1,		-1,		-1},

+};

+

 /* Pinnacle Hybrid Pro eb1a:2881 */

 static struct em28xx_reg_seq pinnacle_hybrid_pro_analog[] = {

 	{EM28XX_R08_GPIO,	0xfd,   ~EM_GPIO_4,	10},

@@ -1649,6 +1665,16 @@ struct em28xx_board em28xx_boards[] = {

 		.tuner_gpio    = reddo_dvb_c_usb_box,

 		.has_dvb       = 1,

 	},

+	/* 1b80:a340 - Empia EM2870, NXP TDA18271HD and LG DT3304, sold

+	 * initially as the KWorld PlusTV 340U, then as the UB435-Q.

+	 * Early variants have a TDA18271HD/C1, later ones a TDA18271HD/C2 */

+	[EM2870_BOARD_KWORLD_A340] = {

+		.name       = "KWorld PlusTV 340U or UB435-Q (ATSC)",

+		.tuner_type = TUNER_ABSENT,	/* Digital-only TDA18271HD */

+		.has_dvb    = 1,

+		.dvb_gpio   = kworld_a340_digital,

+		.tuner_gpio = default_tuner_gpio,

+	},

 };

 const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);

@@ -1768,6 +1794,8 @@ struct usb_device_id em28xx_id_table[] = {

 			.driver_info = EM2820_BOARD_IODATA_GVMVP_SZ },

 	{ USB_DEVICE(0xeb1a, 0x50a6),

 			.driver_info = EM2860_BOARD_GADMEI_UTV330 },

+	{ USB_DEVICE(0x1b80, 0xa340),

+			.driver_info = EM2870_BOARD_KWORLD_A340 },

 	{ },

 };

 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 bcd3c37..ce8a9ee 100644

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

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

@@ -30,11 +30,13 @@

 #include "tuner-simple.h"

 #include "lgdt330x.h"

+#include "lgdt3305.h"

 #include "zl10353.h"

 #include "s5h1409.h"

 #include "mt352.h"

 #include "mt352_priv.h" /* FIXME */

 #include "tda1002x.h"

+#include "tda18271.h"

 MODULE_DESCRIPTION("driver for em28xx based DVB cards");

 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");

@@ -231,6 +233,18 @@ static struct lgdt330x_config em2880_lgdt3303_dev = {

 	.demod_chip = LGDT3303,

 };

+static struct lgdt3305_config em2870_lgdt3304_dev = {

+	.i2c_addr           = 0x0e,

+	.demod_chip         = LGDT3304,

+	.spectral_inversion = 1,

+	.deny_i2c_rptr      = 1,

+	.mpeg_mode          = LGDT3305_MPEG_PARALLEL,

+	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,

+	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,

+	.vsb_if_khz         = 3250,

+	.qam_if_khz         = 4000,

+};

+

 static struct zl10353_config em28xx_zl10353_with_xc3028 = {

 	.demod_address = (0x1e >> 1),

 	.no_tuner = 1,

@@ -247,6 +261,17 @@ static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {

 	.mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK

 };

+static struct tda18271_std_map kworld_a340_std_map = {

+	.atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,

+		      .if_lvl = 1, .rfagc_top = 0x37, },

+	.qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,

+		      .if_lvl = 1, .rfagc_top = 0x37, },

+};

+

+static struct tda18271_config kworld_a340_config = {

+	.std_map           = &kworld_a340_std_map,

+};

+

 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {

 	.demod_address = (0x1e >> 1),

 	.no_tuner = 1,

@@ -570,6 +595,14 @@ static int dvb_init(struct em28xx *dev)

 			}

 		}

 		break;

+	case EM2870_BOARD_KWORLD_A340:

+		dvb->frontend = dvb_attach(lgdt3305_attach,

+					   &em2870_lgdt3304_dev,

+					   &dev->i2c_adap);

+		if (dvb->frontend != NULL)

+			dvb_attach(tda18271_attach, dvb->frontend, 0x60,

+				   &dev->i2c_adap, &kworld_a340_config);

+		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 ba6fe5d..9f3fdad 100644

--- a/drivers/media/video/em28xx/em28xx.h

+++ b/drivers/media/video/em28xx/em28xx.h

@@ -112,6 +112,7 @@

 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX          73

 #define EM2800_BOARD_VC211A			  74

 #define EM2882_BOARD_DIKOM_DK300		  75

+#define EM2870_BOARD_KWORLD_A340		  76

 /* Limits minimum and default number of buffers */

 #define EM28XX_MIN_BUF 4

-- 

1.7.0.1