V4L/DVB (6539): em28xx: add support for vgear pockettv

attached patch adds support for the vgear pockettv.
It seems to require a write to another register for audio to work.
I checked my old cinergydrv and we did the same register write there. I
therefore enabled it for all em2800 based devices.
Signed-off-by: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

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

@@ -328,6 +328,29 @@ struct em28xx_board em28xx_boards[] = {
 			.amux     = 1,
 		}},
 	},
+	[EM2800_BOARD_VGEAR_POCKETTV] = {
+		.name         = "V-Gear PocketTV",
+		.is_em2800    = 1,
+		.vchannels    = 3,
+		.norm         = VIDEO_MODE_PAL,
+		.tuner_type   = TUNER_LG_PAL_NEW_TAPC,
+		.tda9887_conf = TDA9887_PRESENT,
+		.has_tuner    = 1,
+		.decoder      = EM28XX_SAA7113,
+		.input          = {{
+			.type     = EM28XX_VMUX_TELEVISION,
+			.vmux     = SAA7115_COMPOSITE2,
+			.amux     = 0,
+		},{
+			.type     = EM28XX_VMUX_COMPOSITE1,
+			.vmux     = SAA7115_COMPOSITE0,
+			.amux     = 1,
+		},{
+			.type     = EM28XX_VMUX_SVIDEO,
+			.vmux     = SAA7115_SVIDEO3,
+			.amux     = 1,
+		}},
+	},
 	[EM2820_BOARD_PROLINK_PLAYTV_USB2] = {
 		.name         = "Pixelview Prolink PlayTV USB 2.0",
 		.vchannels    = 3,

drivers/media/video/em28xx/em28xx.h

@@ -47,6 +47,7 @@
 #define EM2820_BOARD_KWORLD_PVRTV2800RF		12
 #define EM2880_BOARD_TERRATEC_PRODIGY_XS	13
 #define EM2820_BOARD_PROLINK_PLAYTV_USB2	14
+#define EM2800_BOARD_VGEAR_POCKETTV             15
 
 #define UNSET -1
 
@@ -335,6 +336,9 @@ extern struct em28xx_board em28xx_boards[];
 extern struct usb_device_id em28xx_id_table[];
 extern const unsigned int em28xx_bcount;
 
+/* em2800 registers */
+#define EM2800_AUDIOSRC_REG 0x08
+
 /* em28xx registers */
 #define CHIPID_REG	0x0a
 #define USBSUSP_REG	0x0c	/* */
@@ -390,6 +394,8 @@ extern const unsigned int em28xx_bcount;
 #define VIDEO_AC97	0x14
 
 /* register settings */
+#define EM2800_AUDIO_SRC_TUNER  0x0d
+#define EM2800_AUDIO_SRC_LINE   0x0c
 #define EM28XX_AUDIO_SRC_TUNER	0xc0
 #define EM28XX_AUDIO_SRC_LINE	0x80
 
@@ -411,6 +417,12 @@ extern const unsigned int em28xx_bcount;
 
 inline static int em28xx_audio_source(struct em28xx *dev, int input)
 {
+	if(dev->is_em2800){
+		u8 tmp = EM2800_AUDIO_SRC_TUNER;
+		if(input == EM28XX_AUDIO_SRC_LINE)
+			tmp = EM2800_AUDIO_SRC_LINE;
+		em28xx_write_regs(dev, EM2800_AUDIOSRC_REG, &tmp, 1);
+	}
 	return em28xx_write_reg_bits(dev, AUDIOSRC_REG, input, 0xc0);
 }