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Howto select one of 16 inputs on Digi-Flower boards?

PATCH In review Perry Gilfillan 2 participants 4 messages Aug 3, 2008 – Sep 29, 2008 Media (V4L/DVB)

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Perry Gilfillan

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I've recently laid hands on a few Digi-Flower capture cards and found no indication that anyone has ever taken the time to poke at these cards with a digital multi-meter to discover how they are laid out.

I have two versions, the DVR2000B-R02, and the DVR2510-MP2. The DVR2000B has four Fusion 878A decoders, while the DVR2510 has two. I'm going to concentrate on the DVR2000B since the second should for the most part be identical.

They both can support 16 composite inputs that are multiplexed through pairs of 74HC4051A Analog Multiplexer/Demutiplexers. Which of the 16 inputs is routed to any of the four 878A's is controlled by GPIO pins.

Each 878A device controls a pair of M/D'ers:

      GPIO[0,1,2] => M/D[1][A,B,C] (select pins)
      GPIO[18]    => M/D[1][Enable]

      GPIO[0,1,2] => M/D[2][A,B,C] (select pins)
      GPIO[20]    => M/D[2][Enable]

When an input has been routed the signal is split between the 878A's MUX0 and a 4581CS Sync Separator. As far as I can tell the only output of the 4581CS that is used is the Odd/Even field output that is routed to GPIO[15] on the respective 878A

                      74HC4051A
Comp-In (1-8)  => M/D[1] (X0-7) -> (Output) \   [ L/C/R ](inductor/
                                             |= [network] capacitor/

Comp-In (9-16) => M/D[2] (X0-7) -> (Output) / resistor)

4581CS Sync Separator
L/C/R / Comp-In -> Odd/Even => GPIO[15]
[network] =|

             \ 878A: MUX0

I think this pretty much describes what would be needed to implement these cards, but the actual doing begins to exceed my limited abilities. If those of you that are familiar with the 150 some odd cards that do work, and which of them might be similar in implementation to these cards, and can point out the relevant parts, I'll have a go at it.

There is also a fifth pair of Mux/Demux chips that are used to send one of 16 inputs to an RCA jack via a 6db video amp. This routing function is controlled by an Atmel AT89C2051 (8051 family) micro controller. I have not determined how to talk to the micro controller at this time.

There is also a set of 8 external device I/O ports to send or receive On/Off signals from motion detectors or drive alarm circuits, and an on board WatchDog relay output. These are controlled by GPIO[3-10,12-13] of the first 878A. More details later.

More information on the Digi-Flower DVR2000B (DVR2510 is not listed here) cards made by Anko: http://www.anko-tech.com/products/df2000.htm

lspci data for the DVR2000B ( these numbers seem very generic.. how can the specific card be known?)

02:00.0 PCI bridge [0604]: Hint Corp HB6 Universal PCI-PCI bridge (non-transparent mode) [3388:0021] (rev 11) 03:0c.0 Multimedia video controller [0400]: Brooktree Corporation Bt878 Video Capture [109e:036e] (rev 11) 03:0c.1 Multimedia controller [0480]: Brooktree Corporation Bt878 Audio Capture [109e:0878] (rev 11) 03:0d.0 Multimedia video controller [0400]: Brooktree Corporation Bt878 Video Capture [109e:036e] (rev 11) 03:0d.1 Multimedia controller [0480]: Brooktree Corporation Bt878 Audio Capture [109e:0878] (rev 11) 03:0e.0 Multimedia video controller [0400]: Brooktree Corporation Bt878 Video Capture [109e:036e] (rev 11) 03:0e.1 Multimedia controller [0480]: Brooktree Corporation Bt878 Audio Capture [109e:0878] (rev 11) 03:0f.0 Multimedia video controller [0400]: Brooktree Corporation Bt878 Video Capture [109e:036e] (rev 11) 03:0f.1 Multimedia controller [0480]: Brooktree Corporation Bt878 Audio Capture [109e:0878] (rev 11)

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#1 lore raw

PATCH 1/1 bttv: Re: Howto select one of 16 inputs on Digi-Flower boards?

Quoted 2 lines · Perry Gilfillan

I've recently laid hands on a few Digi-Flower capture cards and found no indication that anyone has ever taken the time to poke at these cards with a digital multi-meter to discover how they are laid out.

I've succeeded in getting the basic capture functionality to work with this card and have a couple of ZoneMinder systems running, so I'd like to submit this patch.

I've copied my earlier description of the board layout and function to the ZoneMinder Wiki for those that are interested.

http://www.zoneminder.com/wiki/index.php/Digiflower

media/video/bt8xx/bttv.h renamed from media/video/bt8xx/bttv.h.orig +1 -0
@@ -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_DIGIFLOWER_DVR2000B     0x96
 
 /* more card-specific defines */
 #define PT2254_L_CHANNEL 0x10
media/video/bt8xx/bttv-cards.c renamed from media/video/bt8xx/bttv-cards.c.orig +37 -0
@@ -81,6 +81,8 @@ static void tibetCS16_init(struct bttv *
 static void kodicom4400r_muxsel(struct bttv *btv, unsigned int input);
 static void kodicom4400r_init(struct bttv *btv);
 
+static void digiflower_dvr2000b_muxsel(struct bttv *btv, unsigned int input);
+
 static void sigmaSLC_muxsel(struct bttv *btv, unsigned int input);
 static void sigmaSQ_muxsel(struct bttv *btv, unsigned int input);
 

@@ -314,6 +316,7 @@ 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" },
+	{ 0x00000000, BTTV_BOARD_DIGIFLOWER_DVR2000B,	"Digi-Flower DVR2000B" },
 
 	{ 0, -1, NULL }
 };

@@ -3005,6 +3008,25 @@ struct tvcard bttv_tvcards[] = {
 		.tuner_addr     = ADDR_UNSET,
 		.radio_addr     = ADDR_UNSET,
 	},
+	[BTTV_BOARD_DIGIFLOWER_DVR2000B] = {
+		.name           = "Digi-Flower DVR2000B (master?)",
+		.video_inputs   = 16,
+		.audio_inputs   = 0,
+		.tuner          = UNSET,
+		.svhs           = UNSET,
+		.tuner_type     = TUNER_ABSENT,
+		.tuner_addr	= ADDR_UNSET,
+		.radio_addr     = ADDR_UNSET,
+		.no_gpioirq     = 1,
+		.gpiomask2      = 0x140007,
+		.muxsel         = { 2,6,10,14, 2,6,10,14, 2,6,10,14, 2,6,10,14 },
+		.muxsel_hook	= digiflower_dvr2000b_muxsel,
+                .gpiomux        = { 0, 0, 0, 0 }, /* card has no audio */
+		.no_msp34xx     = 1,
+		.no_tda9875     = 1,
+		.no_tda7432     = 1,
+		.pll            = PLL_28,
+	},
 };
 
 static const unsigned int bttv_num_tvcards = ARRAY_SIZE(bttv_tvcards);

@@ -4887,6 +4909,21 @@ static void kodicom4400r_init(struct btt
 	master[btv->c.nr+2] = btv;
 }
 
+/* DB1 = Top connector fan-out.  DB2 = Bottom connector fan-out. */
+#define DB1    0x100000
+#define DB2    0x040000
+
+static void digiflower_dvr2000b_muxsel(struct bttv *btv, unsigned int input)
+{
+	static const int masks[] = {
+		DB1,   DB1|1, DB1|2, DB1|3,
+		DB1|4, DB1|5, DB1|6, DB1|7,
+		DB2,   DB2|1, DB2|2, DB2|3,
+		DB2|4, DB2|5, DB2|6, DB2|7,
+	};
+	gpio_write(masks[input%16]);
+}
+
 /* The Grandtec X-Guard framegrabber card uses two Dual 4-channel
  * video multiplexers to provide up to 16 video inputs. These
  * multiplexers are controlled by the lower 8 GPIO pins of the

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#2 lore raw

Re: [PATCH] bttv: Re: Howto select one of 16 inputs on Digi-Flower boards?

Hi Perry,

Quoted 6 lines · On Fri, 26 Sep 2008 20:42:03 -0500 Perry Gilfillan <[email protected]> wrote:
Quoted 4 lines · Perry Gilfillan

I've recently laid hands on a few Digi-Flower capture cards and found no indication that anyone has ever taken the time to poke at these cards with a digital multi-meter to discover how they are laid out.

Quoted 8 lines

I've succeeded in getting the basic capture functionality to work with this card and have a couple of ZoneMinder systems running, so I'd like to submit this patch.

I've copied my earlier description of the board layout and function to the ZoneMinder Wiki for those that are interested.

http://www.zoneminder.com/wiki/index.php/Digiflower

Could you provide your Signed-off-by [1]?

[1] More info about submitting a patch is available at:
http://linuxtv.org/hg/v4l-dvb/raw-file/tip/README.patches

Cheers,
Mauro.

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#3 lore raw

PATCH 1/1 bttv: Re: Howto select one of 16 inputs on Digi-Flower boards?

In reply to Perry Gilfillan
Quoted 2 lines · Perry Gilfillan

I've recently laid hands on a few Digi-Flower capture cards and found no indication that anyone has ever taken the time to poke at these cards with a digital multi-meter to discover how they are laid out.

I've succeeded in getting the basic capture functionality to work with this card and have a couple of ZoneMinder systems running, so I'd like to submit this patch.

I've copied my earlier description of the board layout and function to the ZoneMinder Wiki for those that are interested.

http://www.zoneminder.com/wiki/index.php/Digiflower

Signed-off-by Perry Gilfillan <[email protected]>
media/video/bt8xx/bttv.h renamed from media/video/bt8xx/bttv.h.orig +1 -0
@@ -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_DIGIFLOWER_DVR2000B     0x96
 
 /* more card-specific defines */
 #define PT2254_L_CHANNEL 0x10
media/video/bt8xx/bttv-cards.c renamed from media/video/bt8xx/bttv-cards.c.orig +37 -0
@@ -81,6 +81,8 @@ static void tibetCS16_init(struct bttv *
 static void kodicom4400r_muxsel(struct bttv *btv, unsigned int input);
 static void kodicom4400r_init(struct bttv *btv);
 
+static void digiflower_dvr2000b_muxsel(struct bttv *btv, unsigned int input);
+
 static void sigmaSLC_muxsel(struct bttv *btv, unsigned int input);
 static void sigmaSQ_muxsel(struct bttv *btv, unsigned int input);
 

@@ -314,6 +316,7 @@ 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" },
+	{ 0x00000000, BTTV_BOARD_DIGIFLOWER_DVR2000B,	"Digi-Flower DVR2000B" },
 
 	{ 0, -1, NULL }
 };

@@ -3005,6 +3008,25 @@ struct tvcard bttv_tvcards[] = {
 		.tuner_addr     = ADDR_UNSET,
 		.radio_addr     = ADDR_UNSET,
 	},
+	[BTTV_BOARD_DIGIFLOWER_DVR2000B] = {
+		.name           = "Digi-Flower DVR2000B (master?)",
+		.video_inputs   = 16,
+		.audio_inputs   = 0,
+		.tuner          = UNSET,
+		.svhs           = UNSET,
+		.tuner_type     = TUNER_ABSENT,
+		.tuner_addr	= ADDR_UNSET,
+		.radio_addr     = ADDR_UNSET,
+		.no_gpioirq     = 1,
+		.gpiomask2      = 0x140007,
+		.muxsel         = { 2, 6, 10, 14, 2, 6, 10, 14, 2, 6, 10, 14, 2, 6, 10, 14 },
+		.muxsel_hook	= digiflower_dvr2000b_muxsel,
+		.gpiomux        = { 0, 0, 0, 0 }, /* card has no audio */
+		.no_msp34xx     = 1,
+		.no_tda9875     = 1,
+		.no_tda7432     = 1,
+		.pll            = PLL_28,
+	},
 };
 
 static const unsigned int bttv_num_tvcards = ARRAY_SIZE(bttv_tvcards);

@@ -4887,6 +4909,21 @@ static void kodicom4400r_init(struct btt
 	master[btv->c.nr+2] = btv;
 }
 
+/* DB1 = Top connector fan-out.  DB2 = Bottom connector fan-out. */
+#define DB1    0x100000
+#define DB2    0x040000
+
+static void digiflower_dvr2000b_muxsel(struct bttv *btv, unsigned int input)
+{
+	static const int masks[] = {
+		DB1,   DB1|1, DB1|2, DB1|3,
+		DB1|4, DB1|5, DB1|6, DB1|7,
+		DB2,   DB2|1, DB2|2, DB2|3,
+		DB2|4, DB2|5, DB2|6, DB2|7,
+	};
+	gpio_write(masks[input%16]);
+}
+
 /* The Grandtec X-Guard framegrabber card uses two Dual 4-channel
  * video multiplexers to provide up to 16 video inputs. These
  * multiplexers are controlled by the lower 8 GPIO pins of the

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