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V4L/DVB (7366): Support for a 16-channel bt878 card 

I have what looks like a Geovision GV-600 (or 650) card. It has a large
chip in the middle labeled

CONEXANT
FUSION 878A
25878-13
E345881.1
0312 TAIWAN

It has an audio connector coming out from a chip labeled

ATMEL
0242
AT89C2051-24PI

It is identified as follows on my Debian GNU/Linux Etch (kernel 2.6.18)

...
01:0a.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
01:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
...
01:0a.0 0400: 109e:036e (rev 11)
        Subsystem: 008a:763c
        Flags: bus master, medium devsel, latency 64, IRQ 58
        Memory at dfffe000 (32-bit, prefetchable) [size=4K]
        Capabilities: [44] Vital Product Data
        Capabilities: [4c] Power Management version 2

01:0a.1 0480: 109e:0878 (rev 11)
        Subsystem: 008a:763c
        Flags: bus master, medium devsel, latency 64, IRQ 58
        Memory at dffff000 (32-bit, prefetchable) [size=4K]
        Capabilities: [44] Vital Product Data
        Capabilities: [4c] Power Management version 2

It was being detected as a GENERIC UNKNOWN CARD both by the 2.6.18
kernel and the latest v4l-dvb drivers, but it did not work at all. The
card has sixteen (16) BNC video inputs, four of them on the board itself
and twelve on three daughter-cards. It has a single bt878 chip, no tuner
and what looks like and audio input. After doing some research I managed
to get only eight channels working by forcing card=125 and those DID NOT
match channels 0-7 on the card, and no audio.

Based on what was working for card=125, I added the card definition
block, added a specific muxsel routine and got the card working fully
with xawtv, where the sixteen channels show up as Composite0 to
Composite15, matching the channel labels in the card and daughter-cards.
I have made no efforts yet to get audio working, but would appreciate
any pointers.

Signed-off-by: Ernesto Hernández-Novich <emhn@usb.ve>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
hifive-unleashed-5.1
Ernesto Hernández-Novich 2008-04-22 14:45:58 -03:00 committed by Mauro Carvalho Chehab
parent 76e41e4851
commit 97275ac514
3 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Documentation/video4linux/CARDLIST.bttv
View File

@ -148,3 +148,4 @@
147 -> VoodooTV 200 (USA) [121a:3000]
148 -> DViCO FusionHDTV 2 [dbc0:d200]
149 -> Typhoon TV-Tuner PCI (50684)
150 -> Geovision GV-600 [008a:763c]

28
drivers/media/video/bt8xx/bttv-cards.c
View File

@ -71,6 +71,8 @@ static void kodicom4400r_init(struct bttv *btv);
static void sigmaSLC_muxsel(struct bttv *btv, unsigned int input);
static void sigmaSQ_muxsel(struct bttv *btv, unsigned int input);
static void geovision_muxsel(struct bttv *btv, unsigned int input);
static int terratec_active_radio_upgrade(struct bttv *btv);
static int tea5757_read(struct bttv *btv);
static int tea5757_write(struct bttv *btv, int value);
@ -301,6 +303,7 @@ static struct CARD {
{ 0xd50018ac, BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE, "DViCO FusionHDTV 5 Lite" },
{ 0x00261822, BTTV_BOARD_TWINHAN_DST, "DNTV Live! Mini "},
{ 0xd200dbc0, BTTV_BOARD_DVICO_FUSIONHDTV_2, "DViCO FusionHDTV 2" },
{ 0x763c008a, BTTV_BOARD_GEOVISION_GV600, "GeoVision GV-600" },
{ 0, -1, NULL }
};
@ -2994,6 +2997,24 @@ struct tvcard bttv_tvcards[] = {
.tuner_addr = ADDR_UNSET,
.radio_addr = ADDR_UNSET,
},
[BTTV_BOARD_GEOVISION_GV600] = {
/* emhn@usb.ve */
.name = "Geovision GV-600",
.video_inputs = 16,
.audio_inputs = 0,
.tuner = UNSET,
.svhs = UNSET,
.gpiomask = 0x0,
.muxsel = { 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2 },
.muxsel_hook = geovision_muxsel,
.gpiomux = { 0 },
.no_msp34xx = 1,
.pll = PLL_28,
.tuner_type = UNSET,
.tuner_addr = ADDR_UNSET,
.radio_addr = ADDR_UNSET,
},
};
static const unsigned int bttv_num_tvcards = ARRAY_SIZE(bttv_tvcards);
@ -3333,6 +3354,13 @@ static void sigmaSLC_muxsel(struct bttv *btv, unsigned int input)
gpio_bits( 3<<9, inmux<<9 );
}
static void geovision_muxsel(struct bttv *btv, unsigned int input)
{
unsigned int inmux = input % 16;
gpio_inout(0xf, 0xf);
gpio_bits(0xf, inmux);
}
/* ----------------------------------------------------------------------- */
static void bttv_reset_audio(struct bttv *btv)

1
drivers/media/video/bt8xx/bttv.h
View File

@ -173,6 +173,7 @@
#define BTTV_BOARD_VOODOOTV_200 0x93
#define BTTV_BOARD_DVICO_FUSIONHDTV_2 0x94
#define BTTV_BOARD_TYPHOON_TVTUNERPCI 0x95
#define BTTV_BOARD_GEOVISION_GV600 0x96
/* more card-specific defines */