| Message ID | f917d4dd0902281024veec9c7ay4ee9e609b16c1c2a@mail.gmail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
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 */
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 <bchristo@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 <bchristo@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 <bchristo@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 <bchristo@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 */