Author: wmb Date: Sat Oct 1 19:32:47 2011 New Revision: 2556 URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2556
Log: OLPC XO-1.75 - trac #11236 - Added YCrCb (YUV) support to the XO-1.75 camera test, in the process factoring out the Omnivision sensor code and the base selftest infrastructure into separate files so that XO-1, XO-1.5, and XO-1.75 don't have to duplicate that code. This addresses the stated request of 11236, but does not really change the underlying reality with respect to testing H/VSYNC, since the XO-1.75 camera test has always used CCIR601 separate-sync-lines signaling instead of CCIR656 in-stream sync.
Added: dev/olpc/cameratest.fth dev/olpc/ov7670.fth Modified: dev/olpc/mmp2camera/ccic.fth dev/olpc/mmp2camera/loadpkg.fth dev/olpc/mmp2camera/platform.fth
Added: dev/olpc/cameratest.fth ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ dev/olpc/cameratest.fth Sat Oct 1 19:32:47 2011 (r2556) @@ -0,0 +1,82 @@ +\ See license at end of file +purpose: Common code for OLPC Camera selftest + +d# 5,000 constant movie-time +0 constant test-x +0 constant test-y + +\ Thanks to Cortland Setlow (AKA Blaketh) for the autobrightness code +\ and the full-screen + mirrored display. + +: autobright ( -- ) + read-agc 3 + 3 rshift h# f min " bright!" " $call-screen" evaluate +; +: full-brightness ( -- ) h# f " bright!" " $call-screen" evaluate ; + +: timeout-read ( adr len timeout -- actual ) + >r 0 -rot r> 0 ?do ( actual adr len ) + 2dup read ?dup if 3 roll drop -rot leave then + 1 ms + loop 2drop +; + +: shoot-still ( -- error? ) + d# 1000 snap if true exit then ( buf ) + display-frame ( autobright ) + false +; + +: shoot-movie ( -- error? ) + get-msecs movie-time + ( timeout ) + begin ( timeout ) + shoot-still if drop true exit then ( timeout ) + dup get-msecs - 0<= ( timeout reached ) + until ( timeout ) + drop false +; + +: selftest ( -- error? ) + camera-blocked? if false exit then + open 0= if true exit then + d# 300 ms + start-display + unmirrored resync ( ) + shoot-still ?dup if stop-display close exit then ( error? ) + d# 1,000 ms + mirrored resync shoot-movie full-brightness ( error? ) + stop-display close ( error? ) + ?dup 0= if confirm-selftest? then ( error? ) +; + +: xselftest ( -- error? ) + open 0= if true exit then + h# 10 0 do + shoot-still drop d# 500 ms camera-config config-check + i dump-regs + loop + 0 close ( error? ) +; + +\ LICENSE_BEGIN +\ Copyright (c) 2009 FirmWorks +\ +\ Permission is hereby granted, free of charge, to any person obtaining +\ a copy of this software and associated documentation files (the +\ "Software"), to deal in the Software without restriction, including +\ without limitation the rights to use, copy, modify, merge, publish, +\ distribute, sublicense, and/or sell copies of the Software, and to +\ permit persons to whom the Software is furnished to do so, subject to +\ the following conditions: +\ +\ The above copyright notice and this permission notice shall be +\ included in all copies or substantial portions of the Software. +\ +\ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +\ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +\ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +\ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +\ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +\ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +\ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +\ +\ LICENSE_END
Modified: dev/olpc/mmp2camera/ccic.fth ============================================================================== --- dev/olpc/mmp2camera/ccic.fth Fri Sep 30 03:30:43 2011 (r2555) +++ dev/olpc/mmp2camera/ccic.fth Sat Oct 1 19:32:47 2011 (r2556) @@ -1,5 +1,12 @@ +\ See license at end of file +purpose: Driver for OLPC camera connected to Marvell MMP2 CCIC port + \ ========================== video capture operations ==========================
+0 value camera-base +: cl! ( l adr -- ) camera-base + rl! ; +: cl@ ( adr -- l ) camera-base + rl@ ; + d# 640 constant VGA_WIDTH d# 480 constant VGA_HEIGHT
@@ -36,18 +43,16 @@ \ 0100.0000 for HSYNC active low \ 0080.0000 for VSYNC falling edge h# 0000.0000 constant polarities -h# 20 constant rgb-sensor -h# 080 constant rgb-fb -h# 00 constant rgb-endian \ 0c bits +h# 0.8000 constant ycrcb4:2:2-format \ YCrCb input and output, 422 packed format (8000), no swapping +h# a0 constant rgb-format \ RGB input (20) and output (80), no swapping
-\ VGA RGB565 : setup-image ( -- ) VGA_WIDTH 2* h# 24 cl! \ 640*2 stride, UV stride in high bits = 0
VGA_WIDTH 2* VGA_HEIGHT wljoin h# 34 cl! \ Image size register 0 0 wljoin h# 38 cl! \ Image offset
- polarities rgb-fb or rgb-sensor or rgb-endian or h# 3c cl! \ CTRL0 + use-ycrcb? if ycrcb4:2:2-format else rgb-format then polarities or h# 3c cl! \ CTRL0 ;
: interrupts-off ( -- ) 0 h# 2c cl! h# ffffffff h# 30 cl! ; @@ -96,7 +101,7 @@
: init ( -- ) power-on - ov-smb-setup smb-on + camera-smb-setup smb-on camera-init ;
@@ -114,6 +119,7 @@ then ;
+: resync ( -- ) ;
: snap ( timeout -- true | buf# false ) 0 do @@ -140,21 +146,24 @@ : open ( -- flag ) my-address my-space h# 1000 " map-in" $call-parent to camera-base init + my-args " yuv" $= to use-ycrcb? ov7670-detected? 0= if false exit then alloc-dma-bufs read-setup true ;
+\ There are no pin conflicts on this platform, so the camera can't be blocked +false constant camera-blocked? + : start-display ( -- ) - 0 'dma-buf-phys VGA_WIDTH VGA_HEIGHT " start-video" $call-screen + 0 'dma-buf-phys VGA_WIDTH VGA_HEIGHT use-ycrcb? " start-video" $call-screen ; : stop-display ( -- ) " stop-video" $call-screen ;
: close ( -- ) - stop-display ctlr-stop interrupts-off power-off @@ -165,17 +174,28 @@
\ ============================= selftest operation ===========================
-d# 5,000 constant movie-time -0 constant test-x -0 constant test-y - \ Thanks to Cortland Setlow (AKA Blaketh) for the autobrightness code -\ and the full-screen + mirrored display.
-: autobright ( -- ) - read-agc 3 + 3 rshift h# f min " bright!" $call-screen +[ifdef] notdef \ Unnecessary, since that we don't use 24bpp +VGA_WIDTH value rect-w +VGA_HEIGHT value rect-h + +d# 1200 3 * value dst-pitch +d# 1200 VGA_WIDTH - 2/ value dst-x +d# 800 VGA_HEIGHT - 2/ value dst-y + +VGA_WIDTH 2* value src-pitch + +: >dst-adr ( adr -- adr' ) dst-y dst-pitch * dst-x + 3 * + ; + +: copy16>24 ( src-adr dst-base -- ) + >dst-adr ( src-adr dst-adr ) + rect-h 0 ?do ( src-adr dst-adr ) + 2dup rect-w copy16>24-line ( scr-adr dst-adr ) + swap src-pitch + swap dst-pitch + ( scr-adr' dst-adr' ) + loop ( src-adr dst-adr ) + 2drop ( ) ; -: full-brightness ( -- ) h# f " bright!" $call-screen ;
code copy16>24-line ( src-adr dst-adr #pixels -- ) mov r2,tos \ #pixels in r2 @@ -199,93 +219,11 @@ decs r2,1 0= until c; +[then]
-VGA_WIDTH value rect-w -VGA_HEIGHT value rect-h - -d# 1200 3 * value dst-pitch -d# 1200 VGA_WIDTH - 2/ value dst-x -d# 800 VGA_HEIGHT - 2/ value dst-y - -: >dst-adr ( adr -- adr' ) dst-y dst-pitch * dst-x + 3 * + ; - -VGA_WIDTH 2* value src-pitch - -: copy16>24 ( src-adr dst-base -- ) - >dst-adr ( src-adr dst-adr ) - rect-h 0 ?do ( src-adr dst-adr ) - 2dup rect-w copy16>24-line ( scr-adr dst-adr ) - swap src-pitch + swap dst-pitch + ( scr-adr' dst-adr' ) - loop ( src-adr dst-adr ) - 2drop ( ) -; - -: display-frame ( buf# -- ) +: display-frame ( buf -- ) 'dma-buf-phys " set-video-dma-adr" $call-screen \ 'dma-buf fb-pa copy16>24 -\ autobright -; - -: timeout-read ( adr len timeout -- actual ) - >r 0 -rot r> 0 ?do ( actual adr len ) - 2dup read ?dup if 3 roll drop -rot leave then - 1 ms - loop 2drop -; - -: shoot-still ( -- error? ) - d# 1000 snap if true exit then ( buf# ) - display-frame - false -; - -: shoot-movie ( -- error? ) - get-msecs movie-time + ( timeout ) - begin ( timeout ) - shoot-still if drop true exit then ( timeout ) - dup get-msecs - 0<= ( timeout reached ) - until ( timeout ) - drop false -; - -: mirrored ( -- ) h# 1e ov@ h# 20 or h# 1e ov! ; -: unmirrored ( -- ) h# 1e ov@ h# 20 invert and h# 1e ov! ; - -: selftest ( -- error? ) - open 0= if true exit then - d# 300 ms - start-display - unmirrored shoot-still ?dup if close exit then ( error? ) - d# 1,000 ms - mirrored shoot-movie full-brightness ( error? ) - close ( error? ) - ?dup 0= if confirm-selftest? then ( error? ) -; - -: dump-regs ( run# -- ) - 0 d# 16 " at-xy" eval - ." Pass " .d - key upc h# 47 = if ." Good" else ." Bad" then cr \ 47 is G - - ." 0 1 2 3 4 5 6 7 8 9 a b c d e f" cr - ." -----------------------------------------------" cr - h# ca 0 do - i 2 u.r ." : " - i h# 10 bounds do - i h# ca < if i ov@ 3 u.r then - loop - cr - h# 10 +loop -; - -: xselftest ( -- error? ) - open 0= if true exit then - - h# 10 0 do - shoot-still drop d# 500 ms camera-config config-check - i dump-regs - loop - 0 close ( error? ) ;
\ LICENSE_BEGIN
Modified: dev/olpc/mmp2camera/loadpkg.fth ============================================================================== --- dev/olpc/mmp2camera/loadpkg.fth Fri Sep 30 03:30:43 2011 (r2555) +++ dev/olpc/mmp2camera/loadpkg.fth Sat Oct 1 19:32:47 2011 (r2556) @@ -23,8 +23,7 @@ [then]
fload ${BP}/dev/olpc/mmp2camera/platform.fth - fload ${BP}/dev/olpc/mmp2camera/ov.fth + fload ${BP}/dev/olpc/ov7670.fth fload ${BP}/dev/olpc/mmp2camera/ccic.fth + fload ${BP}/dev/olpc/cameratest.fth end-package - -
Modified: dev/olpc/mmp2camera/platform.fth ============================================================================== --- dev/olpc/mmp2camera/platform.fth Fri Sep 30 03:30:43 2011 (r2555) +++ dev/olpc/mmp2camera/platform.fth Sat Oct 1 19:32:47 2011 (r2556) @@ -1,17 +1,17 @@ \ See license at end of file -purpose: Driver for OLPC camera connected to Via VX855 Video Capture Port +purpose: Platform specifics for OLPC camera connected to Marvell MMP2 CMOS Camera Interface Controller (CCIC)
headers hex
-" OV7670" " sensor" string-property - -: ov-smb-setup ( -- ) +: camera-smb-setup ( -- ) 1 to smb-dly-us d# 108 to smb-clock-gpio# d# 109 to smb-data-gpio# h# 42 to smb-slave ; +: ov@ ( reg -- data ) camera-smb-setup smb-byte@ ; +: ov! ( data reg -- ) camera-smb-setup smb-byte! ;
: reset-sensor ( -- ) d# 102 gpio-clr 1 ms d# 102 gpio-set ;
@@ -27,6 +27,26 @@ \ PIXMCLK on GPIO69, PIXCLK on GPIO70, PIXDATA[7:0] on GPIO[59:66] \ CAM_SCL on GPIO108, CAM_SDA on GPIO109 (bitbang)
-0 value camera-base -: cl! ( l adr -- ) camera-base + rl! ; -: cl@ ( adr -- l ) camera-base + rl@ ; +\ LICENSE_BEGIN +\ Copyright (c) 2011 FirmWorks +\ +\ Permission is hereby granted, free of charge, to any person obtaining +\ a copy of this software and associated documentation files (the +\ "Software"), to deal in the Software without restriction, including +\ without limitation the rights to use, copy, modify, merge, publish, +\ distribute, sublicense, and/or sell copies of the Software, and to +\ permit persons to whom the Software is furnished to do so, subject to +\ the following conditions: +\ +\ The above copyright notice and this permission notice shall be +\ included in all copies or substantial portions of the Software. +\ +\ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +\ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +\ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +\ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +\ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +\ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +\ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +\ +\ LICENSE_END
Added: dev/olpc/ov7670.fth ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ dev/olpc/ov7670.fth Sat Oct 1 19:32:47 2011 (r2556) @@ -0,0 +1,312 @@ +\ See license at end of file +purpose: Omnivision OV7670 image sensor driver + +" OV7670" " sensor" string-property + +\ ============================= camera operations ============================= + +\ Check for the expected value +: ovc ( val adr -- ) + 2dup ov@ ( val reg# val actual ) + tuck <> if ( val reg# actual ) + ." Bad camera I2C value at " swap 2 u.r ( val actual ) + ." expected " swap 2 u.r ." got " 2 u.r cr ( ) + else ( val reg# actual ) + 3drop ( ) + then ( ) +; + +0 value use-ycrcb? + +false value ov7670-detected? + +: ((camera-init) ( -- ) + 80 12 ov! 2 ms \ reset (reads back different) + 01 11 ov! \ 30 fps + 04 3a ov! \ UYVY or VYUY + 00 12 ov! \ VGA + + \ Hardware window + 13 17 ov! \ Horiz start high bits + 01 18 ov! \ Horiz stop high bits + b6 32 ov! \ HREF pieces + 02 19 ov! \ Vert start high bits + 7a 1a ov! \ Vert stop high bits + 0a 03 ov! \ GAIN, VSTART, VSTOP pieces + + \ Mystery scaling numbers + 00 0c ov! \ Control 3 + 00 3e ov! \ Control 14 + 3a 70 ov! 35 71 ov! 11 72 ov! f0 73 ov! + 02 a2 ov! + 00 15 ov! \ Control 10 + + \ Gamma curve values + 20 7a ov! 10 7b ov! 1e 7c ov! 35 7d ov! + 5a 7e ov! 69 7f ov! 76 80 ov! 80 81 ov! + 88 82 ov! 8f 83 ov! 96 84 ov! a3 85 ov! + af 86 ov! c4 87 ov! d7 88 ov! e8 89 ov! + + \ AGC and AEC parameters + e0 13 ov! \ Control 8 + 00 00 ov! \ Gain lower 8 bits !! Linux then sets REG_AECH to 0 + 00 10 ov! + 40 0d ov! \ Control 4 magic reserved bit + 18 14 ov! \ Control 9: 4x gain + magic reserved bit + 05 a5 ov! \ 50hz banding step limit + 07 ab ov! \ 60hz banding step limit + 95 24 ov! \ AGC upper limit + 33 25 ov! \ AGC lower limit + e3 24 ov! \ AGC/AEC fast mode op region + 78 9f ov! \ Hist AEC/AGC control 1 + 68 a0 ov! \ Hist AEC/AGC control 2 + 03 a1 ov! \ Magic + d8 a6 ov! \ Hist AEC/AGC control 3 + d8 a7 ov! \ Hist AEC/AGC control 4 + f0 a8 ov! \ Hist AEC/AGC control 5 + 90 a9 ov! \ Hist AEC/AGC control 6 + 94 aa ov! \ Hist AEC/AGC control 7 + e5 13 ov! \ Control 8 + + \ Mostly magic + 61 0e ov! 4b 0f ov! 02 16 ov! 07 1e ov! + 02 21 ov! 91 22 ov! 07 29 ov! 0b 33 ov! + 0b 35 ov! 1d 37 ov! 71 38 ov! 2a 39 ov! + 78 3c ov! 40 4d ov! 20 4e ov! 00 69 ov! + 4a 6b ov! 10 74 ov! 4f 8d ov! 00 8e ov! + 00 8f ov! 00 90 ov! 00 91 ov! 00 96 ov! + 00 9a ov! 84 b0 ov! 0c b1 ov! 0e b2 ov! + 82 b3 ov! 0a b8 ov! + + \ More magic, some of which tweaks white balance + 0a 43 ov! f0 44 ov! 34 45 ov! 58 46 ov! + 28 47 ov! 3a 48 ov! 88 59 ov! 88 5a ov! + 44 5b ov! 67 5c ov! 49 5d ov! 0e 5e ov! + 0a 6c ov! 55 6d ov! 11 6e ov! + 9f 6f ov! \ 9e for advance AWB + 40 6a ov! + 40 01 ov! \ Blue gain + 60 02 ov! \ Red gain + e7 13 ov! \ Control 8 + + \ Matrix coefficients + 80 4f ov! 80 50 ov! 00 51 ov! 22 52 ov! + 5e 53 ov! 80 54 ov! 9e 58 ov! + + 08 41 ov! \ AWB gain enable + 00 3f ov! \ Edge enhancement factor + 05 75 ov! e1 76 ov! 00 4c ov! 01 77 ov! + c3 3d ov! \ Control 13 + 09 4b ov! 60 c9 ov! \ Reads back differently + 38 41 ov! \ Control 16 + 40 56 ov! + + 11 34 ov! + 12 3b ov! \ Control 11 + 88 a4 ov! 00 96 ov! 30 97 ov! 20 98 ov! + 30 99 ov! 84 9a ov! 29 9b ov! 03 9c ov! + 4c 9d ov! 3f 9e ov! 04 78 ov! + + \ Extra-weird stuff. Some sort of multiplexor register + 01 79 ov! f0 c8 ov! + 0f 79 ov! 00 c8 ov! + 10 79 ov! 7e c8 ov! + 0a 79 ov! 80 c8 ov! + 0b 79 ov! 01 c8 ov! + 0c 79 ov! 0f c8 ov! + 0d 79 ov! 20 c8 ov! + 09 79 ov! 80 c8 ov! + 02 79 ov! c0 c8 ov! + 03 79 ov! 40 c8 ov! + 05 79 ov! 30 c8 ov! + 26 79 ov! + + \ OVT says that rewrite this works around a bug in 565 mode. + \ The symptom of the bug is red and green speckles in the image. +\ 01 11 ov! \ 30 fps def 80 !! Linux doesn't do this +; + +: config-check ( -- ) + 01 11 ovc \ 30 fps + 04 3a ovc \ UYVY or VYUY + ( 00 12 ovc ) \ VGA + + \ Hardware window + 13 17 ovc \ Horiz start high bits + 01 18 ovc \ Horiz stop high bits + b6 32 ovc \ HREF pieces + 02 19 ovc \ Vert start high bits + 7a 1a ovc \ Vert stop high bits + 0a 03 ovc \ GAIN, VSTART, VSTOP pieces + + \ Mystery scaling numbers + 00 0c ovc \ Control 3 + 00 3e ovc \ Control 14 + 3a 70 ovc 35 71 ovc 11 72 ovc f0 73 ovc + 02 a2 ovc + 00 15 ovc \ Control 10 + + \ Gamma curve values + 20 7a ovc 10 7b ovc 1e 7c ovc 35 7d ovc + 5a 7e ovc 69 7f ovc 76 80 ovc 80 81 ovc + 88 82 ovc 8f 83 ovc 96 84 ovc a3 85 ovc + af 86 ovc c4 87 ovc d7 88 ovc e8 89 ovc + + \ AGC and AEC parameters + ( e0 13 ovc ) \ Control 8 + ( 00 00 ovc ) \ Gain lower 8 bits + ( 00 10 ovc ) \ Automatic exposure control 9:2 + 40 0d ovc \ Control 4 magic reserved bit + ( 18 14 ovc ) \ Control 9: 4x gain + magic reserved bit + 05 a5 ovc \ 50hz banding step limit + 07 ab ovc \ 60hz banding step limit + ( 95 24 ovc ) \ AGC upper limit + 33 25 ovc \ AGC lower limit + e3 24 ovc \ AGC/AEC fast mode op region + 78 9f ovc \ Hist AEC/AGC control 1 + 68 a0 ovc \ Hist AEC/AGC control 2 + 03 a1 ovc \ Magic + d8 a6 ovc \ Hist AEC/AGC control 3 + d8 a7 ovc \ Hist AEC/AGC control 4 + f0 a8 ovc \ Hist AEC/AGC control 5 + 90 a9 ovc \ Hist AEC/AGC control 6 + 94 aa ovc \ Hist AEC/AGC control 7 + ( e5 13 ovc ) \ Control 8 + + \ Mostly magic + 61 0e ovc 4b 0f ovc 02 16 ovc 07 1e ovc + 02 21 ovc 91 22 ovc 07 29 ovc 0b 33 ovc + 0b 35 ovc 1d 37 ovc 71 38 ovc 2a 39 ovc + 78 3c ovc 40 4d ovc 20 4e ovc 00 69 ovc + 4a 6b ovc 10 74 ovc 4f 8d ovc 00 8e ovc + 00 8f ovc 00 90 ovc 00 91 ovc 00 96 ovc + ( 00 9a ovc ) 84 b0 ovc 0c b1 ovc 0e b2 ovc + 82 b3 ovc 0a b8 ovc + + \ More magic, some of which tweaks white balance + 0a 43 ovc f0 44 ovc 34 45 ovc 58 46 ovc + 28 47 ovc 3a 48 ovc 88 59 ovc 88 5a ovc + 44 5b ovc 67 5c ovc 49 5d ovc 0e 5e ovc + 0a 6c ovc 55 6d ovc 11 6e ovc + 9f 6f ovc \ 9e for advance AWB + ( 40 6a ovc ) + ( 40 01 ovc ) \ Blue gain + ( 60 02 ovc ) \ Red gain + e7 13 ovc \ Control 8 + + \ Matrix coefficients + b3 4f ovc b3 50 ovc 00 51 ovc 3d 52 ovc + a7 53 ovc e4 54 ovc 9e 58 ovc + + \ 08 41 ovc \ AWB gain enable + ( 00 3f ovc ) \ Edge enhancement factor + 05 75 ovc e1 76 ovc ( 00 4c ovc ) 01 77 ovc + c0 3d ovc \ Control 13 + 09 4b ovc ( 60 c9 ovc ) + 38 41 ovc \ Control 16 + 40 56 ovc + + 11 34 ovc + 12 3b ovc \ Control 11 + 88 a4 ovc 00 96 ovc 30 97 ovc 20 98 ovc + 30 99 ovc 84 9a ovc 29 9b ovc 03 9c ovc + 5c 9d ovc 3f 9e ovc 04 78 ovc + +; + +: camera-init ( -- ) + false to ov7670-detected? + ((camera-init) + 1d ov@ 1c ov@ bwjoin 7fa2 <> if exit then \ Manufacturing ID + b ov@ a ov@ bwjoin 7673 <> if exit then \ Product ID + true to ov7670-detected? +; + +\ VGA RGB565 +: init-rgb565 ( -- ) + 04 12 ov! \ VGA, RGB565 + 00 8c ov! \ No RGB444 + 00 04 ov! \ Control 1: CCIR601 (H/VSYNC framing) + 10 40 ov! \ RGB565 output + 38 14 ov! \ 16x gain ceiling + b3 4f ov! \ v-red + b3 50 ov! \ v-green + 00 51 ov! \ v-blue + 3d 52 ov! \ u-red + a7 53 ov! \ u-green + e4 54 ov! \ u-blue + c0 3d ov! \ Gamma enable, UV saturation auto adjust + + \ OVT says that rewrite this works around a bug in 565 mode. + \ The symptom of the bug is red and green speckles in the image. + 01 11 ov! \ 30 fps def 80 !! Linux doesn't do this +; + +: read-agc ( -- n ) + 3 ov@ h# c0 and 2 lshift 0 ov@ or +; + +: read-aec ( -- n ) + 7 ov@ h# 3f and d# 10 lshift + h# 10 ov@ 2 lshift or + 4 ov@ 3 and or +; + +: set-hw ( vstop vstart hstop hstart -- ) + dup 3 >> 17 ov! \ Horiz start high bits + over 3 >> 18 ov! \ Horiz stop high bits + 32 ov@ swap 7 and or swap 7 and 3 << or 10 ms 32 ov! \ Horiz bottom bits + + dup 2 >> 19 ov! \ Vert start high bits + over 2 >> 1a ov! \ Vert start high bits + 03 ov@ swap 3 and or swap 3 and 2 << or 10 ms 03 ov! \ Vert bottom bits +; + +: camera-config ( -- ) + ((camera-init) + use-ycrcb? 0= if init-rgb565 then + d# 490 d# 10 d# 14 d# 158 set-hw \ VGA window info +; + +: dump-regs ( run# -- ) + 0 d# 16 " at-xy" eval + ." Pass " .d + key upc h# 47 = if ." Good" else ." Bad" then cr \ 47 is G + + ." 0 1 2 3 4 5 6 7 8 9 a b c d e f" cr + ." -----------------------------------------------" cr + h# ca 0 do + i 2 u.r ." : " + i h# 10 bounds do + i h# ca < if i ov@ 3 u.r then + loop + cr + h# 10 +loop +; + +: mirrored ( -- ) h# 1e ov@ h# 20 or h# 1e ov! ; +: unmirrored ( -- ) h# 1e ov@ h# 20 invert and h# 1e ov! ; + +\ LICENSE_BEGIN +\ Copyright (c) 2011 FirmWorks +\ +\ Permission is hereby granted, free of charge, to any person obtaining +\ a copy of this software and associated documentation files (the +\ "Software"), to deal in the Software without restriction, including +\ without limitation the rights to use, copy, modify, merge, publish, +\ distribute, sublicense, and/or sell copies of the Software, and to +\ permit persons to whom the Software is furnished to do so, subject to +\ the following conditions: +\ +\ The above copyright notice and this permission notice shall be +\ included in all copies or substantial portions of the Software. +\ +\ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +\ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +\ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +\ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +\ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +\ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +\ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +\ +\ LICENSE_END
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