http://linuxtv.org/wiki/index.php/Ga...B_TVBox_UTV380
Overview/Features
It has Television and S-Video inputs via Two separate 3.5mm tail cables
It falls under V4L's "Em28xx devices" category (being based upon an EM2860 usb bridge)
Components Used
Verified using dmesg as well as physical inspection of the PCB.
Empia EM2860 (USB video bridge)
Empia EMP202 (AC'97 audio processor)
NXP/Philips SAA7113 (video decoder)
Xceive XC2028ACQ (Analog chip tuner)
24C04 (EEPROM)
HCF4052 (4-channel Analog multiplexer)
Other Pictures
Current Status
Currently it works after patching the v4l-dvb.
Need to test the sound and Composite inputs.
Update: I tried the sox command to route the /dev/dsp1 to /dev/dsp, but it thrown error saying /dev/dsp1 is already locked and cannot open. I think it is due to the pulse audio already locked it. But still I can't get any sound may be some gpio registers deed to be set or the device definition needs some change. Any inputs are welcome. I am testing this on ubuntu Lucid 10.04 64-bit.
Will release the patch soon.
I need help on releasing this as a Patch upstream.
Anybody interested can contact me jeevas.v AT gmail.com
To make it work
I have done these changes to make it work.
1. extract the Xcieve firmware for xc2028 and copy to /lib/firmware as mentioned in the em28xx page.
2. extract the latest v4l-dvb source as mentioned in the em28xx page.
3. go to v4l-dvb/linux/media/video/em28xx folder.
4. edit em28xx.h file and add the device:
.
.
#define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73
#define EM2800_BOARD_VC211A 74
#define EM2882_BOARD_DIKOM_DK300 75
#define EM2860_BOARD_GADMEI_UTV380 76
.
.
5 edit em28xx-cards.c and add the card in card definitions
.
.
.
[EM2860_BOARD_GADMEI_UTV380] = {
.name = "Gadmei UTV380",
.tuner_type = TUNER_XC2028,
.tuner_gpio = default_tuner_gpio,
.has_dvb = 0,
.decoder = EM28XX_SAA711X,
.input = { {
.type = EM28XX_VMUX_TELEVISION,
.vmux = SAA7115_COMPOSITE2,
.amux = EM28XX_AMUX_VIDEO,
}, {
.type = EM28XX_VMUX_COMPOSITE1,
.vmux = SAA7115_COMPOSITE0,
.amux = EM28XX_AMUX_LINE_IN,
} }
},
.
.
.
And also add the card's usb id in the list if it is not already there.
.
.
{ USB_DEVICE(0xeb1a, 0x50a3),
.driver_info = EM2860_BOARD_GADMEI_UTV380 },
.
.
6. Edit em28xx-core.c and make sure that the AC97 audio processor is properly detected. In this case I have to add one more vendor based on the dmesg output.
.
.
/* Try to identify what audio processor we have */
if (((vid == 0xffffffff)||(vid == 0x83847650)) && (feat == 0x6a90))
dev->audio_mode.ac97 = EM28XX_AC97_EM202;
else if ((vid >> 8) == 0x838476)
dev->audio_mode.ac97 = EM28XX_AC97_SIGMATEL;
.
.
7. Then execute the following commands to build and install the kernel modules.
sudo make distclean
sudo make menuconfig (Due to some error I have to disable one of the modules in the list to get past the compilation).
sudo make
sudo make install
8. After this restart your machine, plugin your device and start your favourite tv app and enjoy.
Identification
Output of lsusb -v:
$ lsusb -v -d eb1a:50a3
Bus 002 Device 004: ID eb1a:50a3 eMPIA Technology, Inc. Gadmei UTV380 TV Box Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0xeb1a eMPIA Technology, Inc.
idProduct 0x50a3 Gadmei UTV380 TV Box
bcdDevice 1.00
iManufacturer 0
iProduct 1 UTV380
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 555
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 7
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 255
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 11
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 39
bInCollection 1
baInterfaceNr( 0) 2
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0603 Line Connector
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 2
bSourceID 1
bControlSize 1
bmaControls( 0) 0x03
Mute
Volume
bmaControls( 1) 0x00
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 2
iTerminal 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 0
bDescriptorType 0
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 3
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 8000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0024 1x 36 bytes
bInterval 4
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
External Links
