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>
diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index b963bde..417dd55 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -71,6 +71,8 @@
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 @@
{ 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 @@
.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 @@
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)