Hello all,
I have a GeoVision GV-800(S) card, it has 4 CONEXANT BT878A chips.
It has 16 video inputs and 4 audio inputs, and it is almost identical
to the GV-800, as seen on http://bttv-gallery.de .
The only difference appears to be the analog mux, it has a CD22M3494
in place of the MT8816AP. The card has a blue PCB, as seen in this
picture: http://www.gsbr.com.br/imagem/kits/GeoVision%20GV%20800.jpg .
This card wasn't originally supported, and it was detected as
UNKNOWN/GENERIC. The video inputs weren't working, so I tried
"forcing" a few cards like the GeoVision GV-600, but there was still
no video. So I made a patch to support this card, based on the Kodicom
4400r.
The GV-800(S) is identified as follows:
# lspci
...
02:00.0 Multimedia video controller: Brooktree Corporation Bt878 Video
Capture (rev 11)
02:00.1 Multimedia controller: Brooktree Corporation Bt878 Audio
Capture (rev 11)
02:04.0 Multimedia video controller: Brooktree Corporation Bt878 Video
Capture (rev 11)
02:04.1 Multimedia controller: Brooktree Corporation Bt878 Audio
Capture (rev 11)
02:08.0 Multimedia video controller: Brooktree Corporation Bt878 Video
Capture (rev 11)
02:08.1 Multimedia controller: Brooktree Corporation Bt878 Audio
Capture (rev 11)
02:0c.0 Multimedia video controller: Brooktree Corporation Bt878 Video
Capture (rev 11)
02:0c.1 Multimedia controller: Brooktree Corporation Bt878 Audio
Capture (rev 11)
# lspci -nv
...
02:00.0 0400: 109e:036e (rev 11)
Subsystem: 800a:763d
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at cdfff000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data <?>
Capabilities: [4c] Power Management version 2
Kernel modules: bttv
02:00.1 0480: 109e:0878 (rev 11)
Subsystem: 800a:763d
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at cdffe000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data <?>
Capabilities: [4c] Power Management version 2
02:04.0 0400: 109e:036e (rev 11)
Subsystem: 800b:763d
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at cdffd000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data <?>
Capabilities: [4c] Power Management version 2
Kernel modules: bttv
02:04.1 0480: 109e:0878 (rev 11)
Subsystem: 800b:763d
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at cdffc000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data <?>
Capabilities: [4c] Power Management version 2
02:08.0 0400: 109e:036e (rev 11)
Subsystem: 800c:763d
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at cdffb000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data <?>
Capabilities: [4c] Power Management version 2
Kernel modules: bttv
02:08.1 0480: 109e:0878 (rev 11)
Subsystem: 800c:763d
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at cdffa000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data <?>
Capabilities: [4c] Power Management version 2
02:0c.0 0400: 109e:036e (rev 11)
Subsystem: 800d:763d
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at cdff9000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data <?>
Capabilities: [4c] Power Management version 2
Kernel modules: bttv
02:0c.1 0480: 109e:0878 (rev 11)
Subsystem: 800d:763d
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at cdff8000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data <?>
Capabilities: [4c] Power Management version 2
As you can see, the GV-800(S) card is almost identical to the GV-800
on bttv-gallery, so this patch might also work for that card. If not,
only a few changes should be required on the gv800s_write() function.
After this patch, the video inputs work correctly. The input order may
seem a little odd, but it's the order the original software/driver
uses, and I decided to keep that order to get the most out of the
card.
I tried to get the audio working with the snd-bt87x module, but I only
get noise from every audio input, even after selecting a different mux
with alsamixer. Also, after trying to play sound from those sources, I
randomly get a RISC error about an invalid RISC opcode, and then that
output stops working. I also can't change the sampling rate when
recording. Any pointers to adding audio support are welcome.
Signed-off-by: Bruno Christo <bchri...@inf.ufsm.br>
diff -r c770b20d15c6 linux/Documentation/video4linux/CARDLIST.bttv
--- a/linux/Documentation/video4linux/CARDLIST.bttv Fri Feb 27
21:29:59 2009 -0300
+++ b/linux/Documentation/video4linux/CARDLIST.bttv Fri Feb 27
22:12:29 2009 -0300
@@ -155,3 +155,5 @@
154 -> PHYTEC VD-012-X1 (bt878)
155 -> PHYTEC VD-012-X2 (bt878)
156 -> IVCE-8784
[0000:f050,0001:f050,0002:f050,0003:f050]
+157 -> Geovision GV-800(S) (master) [800a:763d]
+158 -> Geovision GV-800(S) (slave)
[800b:763d,800c:763d,800d:763d]
diff -r c770b20d15c6 linux/drivers/media/video/bt8xx/bttv-cards.c
--- a/linux/drivers/media/video/bt8xx/bttv-cards.c Fri Feb 27 21:29:59
2009 -0300
+++ b/linux/drivers/media/video/bt8xx/bttv-cards.c Fri Feb 27 22:12:29
2009 -0300
@@ -75,6 +75,9 @@
static void geovision_muxsel(struct bttv *btv, unsigned int input);
static void phytec_muxsel(struct bttv *btv, unsigned int input);
+
+static void gv800s_muxsel(struct bttv *btv, unsigned int input);
+static void gv800s_init(struct bttv *btv);
static int terratec_active_radio_upgrade(struct bttv *btv);
static int tea5757_read(struct bttv *btv);
@@ -312,6 +315,10 @@
{ 0xd200dbc0, BTTV_BOARD_DVICO_FUSIONHDTV_2, "DViCO FusionHDTV 2" },
{ 0x763c008a, BTTV_BOARD_GEOVISION_GV600, "GeoVision GV-600" },
{ 0x18011000, BTTV_BOARD_ENLTV_FM_2, "Encore ENL TV-FM-2" },
+ { 0x763d800a, BTTV_BOARD_GEOVISION_GV800S, "GeoVision GV-800(S)
(master)" },
+ { 0x763d800b, BTTV_BOARD_GEOVISION_GV800S_SL, "GeoVision GV-800(S)
(slave)" },
+ { 0x763d800c, BTTV_BOARD_GEOVISION_GV800S_SL, "GeoVision GV-800(S)
(slave)" },
+ { 0x763d800d, BTTV_BOARD_GEOVISION_GV800S_SL, "GeoVision GV-800(S)
(slave)" },
{ 0, -1, NULL }
};
@@ -2847,7 +2854,60 @@
.pll = PLL_28,
.tuner_type = TUNER_ABSENT,
.tuner_addr = ADDR_UNSET,
- }
+ },
+ [BTTV_BOARD_GEOVISION_GV800S] = {
+ /* Bruno Christo <bchri...@inf.ufsm.br>
+ *
+ * GeoVision GV-800(S) has 4 Conexant Fusion 878A:
+ * 1 audio input per BT878A = 4 audio inputs
+ * 4 video inputs per BT878A = 16 video inputs
+ * This is the first BT878A chip of the GV-800(S). It's the
+ * "master" chip and it controls the video inputs through an
+ * analog multiplexer (a CD22M3494) via some GPIO pins. The
+ * slaves should use card type 0x9e (following this one).
+ * There is a EEPROM on the card which is currently not handled.
+ * The audio input is not working yet.
+ */
+ .name = "Geovision GV-800(S) (master)",
+ .video_inputs = 4,
+ /* .audio_inputs= 1, */
+ .tuner_type = TUNER_ABSENT,
+ .tuner_addr = ADDR_UNSET,
+ .svhs = NO_SVHS,
+ .gpiomask = 0xf107f,
+ .no_gpioirq = 1,
+ .muxsel = MUXSEL(2, 2, 2, 2),
+ .pll = PLL_28,
+ .no_msp34xx = 1,
+ .no_tda7432 = 1,
+ .no_tda9875 = 1,
+ .muxsel_hook = gv800s_muxsel,
+ },
+ [BTTV_BOARD_GEOVISION_GV800S_SL] = {
+ /* Bruno Christo <bchri...@inf.ufsm.br>
+ *
+ * GeoVision GV-800(S) has 4 Conexant Fusion 878A:
+ * 1 audio input per BT878A = 4 audio inputs
+ * 4 video inputs per BT878A = 16 video inputs
+ * The 3 other BT878A chips are "slave" chips of the GV-800(S)
+ * and should use this card type.
+ * The audio input is not working yet.
+ */
+ .name = "Geovision GV-800(S) (slave)",
+ .video_inputs = 4,
+ /* .audio_inputs= 1, */
+ .tuner_type = TUNER_ABSENT,
+ .tuner_addr = ADDR_UNSET,
+ .svhs = NO_SVHS,
+ .gpiomask = 0x00,
+ .no_gpioirq = 1,
+ .muxsel = MUXSEL(2, 2, 2, 2),
+ .pll = PLL_28,
+ .no_msp34xx = 1,
+ .no_tda7432 = 1,
+ .no_tda9875 = 1,
+ .muxsel_hook = gv800s_muxsel,
+ },
};
static const unsigned int bttv_num_tvcards = ARRAY_SIZE(bttv_tvcards);
@@ -3376,6 +3436,9 @@
case BTTV_BOARD_KODICOM_4400R:
kodicom4400r_init(btv);
break;
+ case BTTV_BOARD_GEOVISION_GV800S:
+ gv800s_init(btv);
+ break;
}
/* pll configuration */
@@ -4595,6 +4658,123 @@
gpio_bits(0x3, mux);
}
+/*
+ * GeoVision GV-800(S) functions
+ * Bruno Christo <bchri...@inf.ufsm.br>
+*/
+
+/* This is a function to control the analog switch, which determines which
+ * camera is routed to which controller. The switch comprises an X-address
+ * (gpio bits 0-3, representing the camera, ranging from 0-15), and a
+ * Y-address (gpio bits 4-6, representing the controller, ranging from 0-3).
+ * A data value (gpio bit 18) of '1' enables the switch, and '0' disables
+ * the switch. A STROBE bit (gpio bit 17) latches the data value into the
+ * specified address. There is also a chip select (gpio bit 16).
+ * The idea is to set the address and chip select together, bring
+ * STROBE high, write the data, and finally bring STROBE back to low.
+ */
+static void gv800s_write(struct bttv *btv,
+ unsigned char xaddr,
+ unsigned char yaddr,
+ unsigned char data) {
+ /* On the "master" 878A:
+ * GPIO bits 0-9 are used for the analog switch:
+ * 00 - 03: camera selector
+ * 04 - 06: 878A (controller) selector
+ * 16: cselect
+ * 17: strobe
+ * 18: data (1->on, 0->off)
+ * 19: reset
+ */
+ const u32 ADDR = ((xaddr&0xf) | (yaddr&3)<<4);
+ const u32 CSELECT = 1<<16;
+ const u32 STROBE = 1<<17;
+ const u32 DATA = data<<18;
+
+ gpio_bits(0x1007f, ADDR | CSELECT); /* write ADDR and CSELECT */
+ gpio_bits(0x20000, STROBE); /* STROBE high */
+ gpio_bits(0x40000, DATA); /* write DATA */
+ gpio_bits(0x20000, ~STROBE); /* STROBE low */
+}
+
+/*
+ * GeoVision GV-800(S) muxsel
+ *
+ * Each of the 4 cards (controllers) use this function.
+ * The controller using this function selects the input through the GPIO pins
+ * of the "master" card. A pointer to this card is stored in master[btv->c.nr].
+ *
+ * The parameter 'input' is the requested camera number (0-4) on the
controller.
+ * The map array has the address of each input. Note that the addresses in the
+ * array are in the sequence the original GeoVision driver uses, that is, set
+ * every controller to input 0, then to input 1, 2, 3, repeat. This means that
+ * the physical "camera 1" connector corresponds to controller 0 input 0,
+ * "camera 2" corresponds to controller 1 input 0, and so on.
+ *
+ * After getting the input address, the function then writes the appropriate
+ * data to the analog switch, and housekeeps the local copy of the switch
+ * information.
+ */
+static void gv800s_muxsel(struct bttv *btv, unsigned int input)
+{
+ struct bttv *mctlr;
+ char *sw_status;
+ int xaddr, yaddr;
+ static unsigned int map[4][4] = {{ 0x0, 0x4, 0xa, 0x6 },
+ { 0x1, 0x5, 0xb, 0x7 },
+ { 0x2, 0x8, 0xc, 0xe },
+ { 0x3, 0x9, 0xd, 0xf }};
+ input = input%4;
+ mctlr = master[btv->c.nr];
+ if (mctlr == NULL) {
+ // do nothing until the "master" is detected
+ return;
+ }
+ yaddr = (btv->c.nr - mctlr->c.nr) & 3;
+ sw_status = (char *)(&mctlr->mbox_we);
+ xaddr = map[yaddr][input] & 0xf;
+
+ // Check if the controller/camera pair has changed, ignore otherwise
+ if (sw_status[yaddr] != xaddr)
+ {
+ // disable the old switch, enable the new one and save status
+ gv800s_write(mctlr, sw_status[yaddr], yaddr, 0);
+ sw_status[yaddr] = xaddr;
+ gv800s_write(mctlr, xaddr, yaddr, 1);
+ }
+}
+
+/* GeoVision GV-800(S) "master" chip init */
+static void gv800s_init(struct bttv *btv)
+{
+ char *sw_status = (char *)(&btv->mbox_we);
+ int ix;
+
+ gpio_inout(0xf107f, 0xf107f);
+ gpio_write(1<<19); /* reset the analog MUX */
+ gpio_write(0);
+
+ /* Preset camera 0 to the 4 controllers */
+ for (ix = 0; ix < 4; ix++) {
+ sw_status[ix] = ix;
+ gv800s_write(btv, ix, ix, 1);
+ }
+
+ /* Inputs on the "master" controller need this brightness fix */
+ bttv_I2CWrite(btv, 0x18, 0x5, 0x90, 1);
+
+ if (btv->c.nr>BTTV_MAX-4)
+ return;
+ /*
+ * Store the "master" controller pointer in the master
+ * array for later use in the muxsel function.
+ */
+ master[btv->c.nr] = btv;
+ master[btv->c.nr+1] = btv;
+ master[btv->c.nr+2] = btv;
+ master[btv->c.nr+3] = btv;
+}
+
/* ----------------------------------------------------------------------- */
/* motherboard chipset specific stuff */
diff -r c770b20d15c6 linux/drivers/media/video/bt8xx/bttv.h
--- a/linux/drivers/media/video/bt8xx/bttv.h Fri Feb 27 21:29:59 2009 -0300
+++ b/linux/drivers/media/video/bt8xx/bttv.h Fri Feb 27 22:12:29 2009 -0300
@@ -182,6 +182,8 @@
#define BTTV_BOARD_VD012_X1 0x9a
#define BTTV_BOARD_VD012_X2 0x9b
#define BTTV_BOARD_IVCE8784 0x9c
+#define BTTV_BOARD_GEOVISION_GV800S 0x9d
+#define BTTV_BOARD_GEOVISION_GV800S_SL 0x9e
/* more card-specific defines */
--
Bruno Christo
Bacharel em Ciência da Computação - UFSM
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