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This commit is contained in:
Kacper Donat
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build/skiller-sgk3.pdf
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build/skiller-sgk3.pdf
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doc/color-keyboard.tex
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doc/color-keyboard.tex
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\def\row{0}
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\node[key] at (0,\row) {00\\00};
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\node[key] at (2,\row) {00\\03};
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\node[key] at (3,\row) {00\\06};
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\node[key] at (4,\row) {00\\09};
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\node[key] at (5,\row) {00\\0C};
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\node[key] at (6.5,\row) {00\\0F};
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\node[key] at (7.5,\row) {00\\12};
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\node[key] at (8.5,\row) {00\\15};
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\node[key] at (9.5,\row) {00\\18};
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\node[key] at (11,\row) {00\\1B};
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\node[key] at (12,\row) {00\\1E};
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\node[key] at (13,\row) {00\\21};
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\node[key] at (14,\row) {00\\24};
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\node[key] at (15.25,\row) {00\\2a};
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\node[key] at (16.25,\row) {00\\2d};
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\node[key] at (17.25,\row) {00\\30};
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\def\row{1.5}
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\node[key] at (0,\row) {00\\3f};
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\node[key] at (1,\row) {00\\42};
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\node[key] at (2,\row) {00\\45};
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\node[key] at (3,\row) {00\\48};
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\node[key] at (4,\row) {00\\4b};
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\node[key] at (5,\row) {00\\4e};
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\node[key] at (6,\row) {00\\51};
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\node[key] at (7,\row) {00\\54};
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\node[key] at (8,\row) {00\\57};
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\node[key] at (9,\row) {00\\5A};
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\node[key] at (10,\row) {00\\5D};
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\node[key] at (11,\row) {00\\60};
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\node[key] at (12,\row) {00\\63};
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\node[key, text width=14.5mm] at (13,\row) {00\\66};
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\node[key] at (15.25,\row) {F12};
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\node[key] at (16.25,\row) {F12};
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\node[key] at (17.25,\row) {F12};
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\node[key] at (18.5,\row) {F12};
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\node[key] at (19.5,\row) {F12};
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\node[key] at (20.5,\row) {F12};
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\node[key] at (21.5,\row) {F12};
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\def\row{2.5}
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\node[key, text width=10.75mm] at (0,\row) {0000};
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\node[key] at (1.5,\row) {0000};
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\node[key] at (2.5,\row) {0003};
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\node[key] at (3.5,\row) {0006};
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\node[key] at (4.5,\row) {0009};
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\node[key] at (5.5,\row) {000C};
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\node[key] at (6.5,\row) {000F};
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\node[key] at (7.5,\row) {F6};
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\node[key] at (8.5,\row) {F7};
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\node[key] at (9.5,\row) {F8};
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\node[key] at (10.5,\row) {F9};
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\node[key] at (11.5,\row) {F10};
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\node[key] at (12.5,\row) {F11};
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\node[key, text width=10.75mm] at (13.5,\row) {F12};
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\node[key] at (15.25,\row) {F12};
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\node[key] at (16.25,\row) {F12};
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\node[key] at (17.25,\row) {F12};
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\node[key] at (18.5,\row) {F12};
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\node[key] at (19.5,\row) {F12};
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\node[key] at (20.5,\row) {F12};
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\node[key, minimum height=12.5mm] at (21.5,\row) {F12};
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\def\row{3.5}
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\node[key, text width=13.0mm] at (0,\row) {0000};
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\node[key] at (1.8,\row) {0000};
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\node[key] at (2.8,\row) {0003};
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\node[key] at (3.8,\row) {0006};
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\node[key] at (4.8,\row) {0009};
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\node[key] at (5.8,\row) {000C};
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\node[key] at (6.8,\row) {000F};
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\node[key] at (7.8,\row) {F6};
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\node[key] at (8.8,\row) {F7};
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\node[key] at (9.8,\row) {F8};
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\node[key] at (10.8,\row) {F9};
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\node[key] at (11.8,\row) {F10};
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\node[key, text width=16mm] at (12.8,\row) {F12};
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\node[key] at (18.5,\row) {F12};
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\node[key] at (19.5,\row) {F12};
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\node[key] at (20.5,\row) {F12};
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\def\row{4.5}
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\node[key, text width=16.75mm] at (0,\row) {0000};
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\node[key] at (2.3,\row) {0000};
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\node[key] at (3.3,\row) {0003};
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\node[key] at (4.3,\row) {0006};
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\node[key] at (5.3,\row) {0009};
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\node[key] at (6.3,\row) {000C};
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\node[key] at (7.3,\row) {000F};
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\node[key] at (8.3,\row) {F6};
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\node[key] at (9.3,\row) {F7};
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\node[key] at (10.3,\row) {F8};
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\node[key] at (11.3,\row) {F9};
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\node[key, text width=19.75mm] at (12.3,\row) {F12};
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\node[key] at (16.25,\row) {F12};
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\node[key] at (18.5,\row) {F12};
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\node[key] at (19.5,\row) {F12};
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\node[key] at (20.5,\row) {F12};
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\node[key, minimum height=12.5mm] at (21.5,\row) {F12};
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\def\row{5.5}
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\node[key, text width=8.875mm] at (0,\row) {0000};
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\node[key, text width=8.875mm] at (1.25,\row) {0000};
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\node[key, text width=8.875mm] at (2.5,\row) {0003};
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\node[key, text width=46.375mm] at (3.75,\row) {0006};
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\node[key, text width=8.875mm] at (10,\row) {F12};
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\node[key, text width=8.875mm] at (11.25,\row) {F12};
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\node[key, text width=8.875mm] at (12.5,\row) {F12};
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\node[key, text width=8.875mm] at (13.75,\row) {F12};
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\node[key] at (15.25,\row) {F12};
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\node[key] at (16.25,\row) {F12};
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\node[key] at (17.25,\row) {F12};
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\node[key] at (18.5,\row) {F12};
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\node[key] at (19.5,\row) {F12};
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\node[key] at (20.5,\row) {F12};
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111
doc/random.txt
111
doc/random.txt
@ -1,111 +0,0 @@
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?? ?? ?? ???? ?? ?? rrggbb
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04 79 01 1103 65 0100 ff0000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 fa 00 1103 65 0100 008000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 7c 01 1103 68 0100 ff0000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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?? ???? com? keyc ?? rrggbb
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04 0100 0100 0000 00 000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 be03 1103 c000 00 fffbf0 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ; a
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04 0200 0200 0000 00 000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 0d03 11 03 0e01 00 fffbf0 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ; b
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04 0703 11 03 0801 00 fffbf0 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ; c
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04 c403 11 03 c600 00 fffbf0 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ; d
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04 9703 11 03 9900 00 fffbf0 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ; o
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04 d202 11 03 c000 00 ffff00 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ; a
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04 5401 11 03 c000 00 000080 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 9700 11 03 0201 00 000080 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 5701 11 03 c300 00 000080 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 d000 11 03 3b01 00 000080 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 9400 11 03 0000 00 000080 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 4409 11 36 0000 00 0000fe 00800000800000800000800000800000800000800000800000800000800000800000800000000000800000800000ff000000000000
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04 1800 06 01 0f00 00 020000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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04 4402 04 2c 0000 00 aa5502150000000000000050000000000102030405060708090a0b0c0d0e0f00101214000000000000000000000000000000000000000000
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esc == 00, left to right, top to bottom.
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Magic Number: 0x04
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Control sum: Sum of all the other bytes
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Some kind of command: 0x0311
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Some kind of address: 0x0000
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Some kind of 0x00: 0x00
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Payload:
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bbggrr: 0x800000
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Command types:
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- 0x01 - lights off
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- 0x02 - lights on
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- 0x06 - change settings
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- 0x00 - mode
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- 0x01 - brightness
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- 0x02 - pulse speed
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- 0x03 - direction
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- 0x04 - Is RGB
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- 0x05 - color (3 bytes)
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- 0x11 - change color
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02 // number of repetitions
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03 // a chuj wie
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delay ?? ?? Key code
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05 A0 02 0F
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05 20 02 0F
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05 A0 02 12
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05 20 02 12
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05 A0 02 0F
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00 20 02 0F
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6D 00 65 00 68 00 // meh
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0000 AA 55 34 00 01 00 01 00 00 00 00 00 00 00 00 00
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0010 12 00 06 00 01 03 05 A0 02 0F 05 20 02 0F 05 A0
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0020 02 12 05 20 02 12 05 A0 02 0F 00 20 02 0F 6D 00
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0030 65 00 68 00
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0000 AA 55
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60 00 // długość
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02 00 // ilość wpisów ?
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01 00
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0E 00
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00 0E
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32 76
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03 00
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14 00
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36 00
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06 00
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06 00 // number of keystrokes
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02 // number of repetitions
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03 // ??
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05 A0 02 0F
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05 20 02 0F
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05 A0 02 12
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05 20 02 12
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05 A0 02 0F
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00 20 02 0F
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6D 00 65 00 68 00 // name: meh
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08 00
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01
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03
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05 A0 01 20 // 05 = delay, 05*10ms A0 - press, 0x01 - modifier 0x20 - keycode
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05 A0 02 0F
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05 20 02 0F
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05 A0 02 12
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05 20 02 12
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05 A0 02 0F
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05 20 02 0F
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00 20 01 20
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6B 00 65 00 6B 00
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@ -1,5 +1,5 @@
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\documentclass[]{article}
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\usepackage[T1]{fontenc}
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\usepackage{fontspec}
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\usepackage{listings}
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\usepackage{titling}
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\usepackage[utf8]{inputenc}
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@ -12,15 +12,153 @@
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\usepackage{amstext}
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\usepackage{tikz}
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\usepackage{pgfplots}
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\usepackage{bytefield}
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\usetikzlibrary{intersections,calc,positioning,arrows}
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%opening
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\title {Sharkoon Skiller MECH SGK3 USB control protocol}
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\author {Kacper Donat <kacper@kadet.net>}
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\tikzstyle{key}=[draw, rounded corners=.3mm, outer sep=2pt]
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\DeclareRobustCommand{\key}[1]{\tikz[baseline={(K.base)}]{\node[key] (K) {#1}}}
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\begin{document}
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{\huge \noindent \textbf{\thetitle} \vspace{5mm}} \\
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{\large \theauthor} \\
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\section{Basic hardware information}
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Port: USB, ID \texttt{0c45:8513}
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\section{Basic info}
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\begin{table}[H]
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\begin{tabular}{l|r}
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\textbf{Property} & \textbf{Value} \\ \hline
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\textbf{VendorID} & 0c45\\
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\textbf{ProductID} & 8513 \\
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\textbf{Control Interface Index} & 1 \\ \hline
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\textbf{Endianness} & Big Endian
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\end{tabular}
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\end{table}
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\section{Protocol}
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Commands are submited to keybord via USB control transfer, state updates are send by keyboard via USB interrupts.
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After every command, keyboard should send state update.
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Every packet has length of 64 bytes, and consist of 8 bytes header followed by payload, which can be up to 56 bytes
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long. It's not possible to split packet into two, instead we should use addressing feature described later.
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\begin{figure}[H]
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\centering
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\begin{bytefield}[bitwidth=4em]{8}
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\bitheader{0-7} \\
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\bitbox{1}{04h} & \bitbox{2}{checksum} & \bitbox{1}{cmd} & \bitbox{1}{len} & \bitbox{2}{addr} & \bitbox{1}{00h} \\
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\wordbox{3}{payload \\ up to len bytes}
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\end{bytefield}
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\end{figure}
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\subsection{Header}
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Every packet starts with magic byte \texttt{04h}, probably used to determine control packets. Every value is written
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in Big Endian manner, ie. LOW byte commes first. Header is ended with one null byte used for padding.
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\subsubsection{checksum}
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Magic value is followed by 2-byte long checksum. Checksum calculation method is really trivial - it's just a sum of all
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bytes after checksum.
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\begin{equation}
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\mathtt{checksum} = \sum_{i=3}^{64} \mathtt{Byte}_i
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\end{equation}
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\subsubsection{command}
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Command is 1-byte long identifier, which determines payload kind and action taken by keyboard. Commands can be used
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to update keyboard state, or to read state.
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\begin{table}[H]
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\centering
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\begin{tabular}{l|r|l}
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\textbf{Command} & \textbf{Value} & \textbf{Description} \\ \hline
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\texttt{SK\_CMD\_DISABLE\_LED} & \texttt{01h} & Disables key backlight, takes some time. \\
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\texttt{SK\_CMD\_ENABLE\_LED} & \texttt{02h} & Enables key backlight, takes some time. \\
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\texttt{SK\_CMD\_READ\_???} & \texttt{03h} & Reads some state. \\
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\texttt{SK\_CMD\_READ\_???} & \texttt{05h} & Reads some state. \\
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\texttt{SK\_CMD\_SET\_MODE} & \texttt{06h} & Changes keyboard mode or mode settings. \\
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\texttt{SK\_CMD\_MAP\_KEYS} & \texttt{08h} & Writes key mapping to controller. \\
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\texttt{SK\_CMD\_WRITE\_MACRO} & \texttt{0Ah} & Saves macros in controller memory. \\
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\texttt{SK\_CMD\_SET\_COLOR} & \texttt{11h} & Changes LED RGB values in key given keys, or key range. \\
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\end{tabular}
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\end{table}
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All commands will be described more precisely in later sections.
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\subsubsection{len}
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Length of payload, up to 56.
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\subsubsection{addr}
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Address of changed value/register, command specific, if not needed should be set to \texttt{0000h}.
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\section{commands}
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\subsection{\texttt{SK\_CMD\_DISABLE\_LED} (\texttt{01h})}
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This command disables all LEDs\footnote{And maybe other things, hard to test.} on keyboard. It's useful when we
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need to change few values and don't want to constantly blink diodes.
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\subsection{\texttt{SK\_CMD\_ENABLE\_LED} (\texttt{02h})}
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This command re-enables all LEDs on keyboard. It's useful when we need to change few values and don't want to
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constantly blink diodes. Both operations are quite long to execute, they can took about 1s.
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\subsection{\texttt{SK\_CMD\_SET\_COLOR} (\texttt{11h})}
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This command can be used to change color of 1 or few LEDs at once. This operation takes less than 100ms, and
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refreshes all diodes (in simpler words - they blink).
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\subsubsection{Addressing}
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The \texttt{addr} header value identifies starting address of specific LED in keyboard. Rule of thumb is that keys
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are addressed from left to right, top to bottom staring with \key{Esc} addressed \texttt{0000h}. Key address map can
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be seen below.
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\begin{figure}[H]
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||||
\resizebox{\linewidth}{!}{
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||||
\begin{tikzpicture}[
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x=.75cm, y=-.65cm,
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key/.append style={
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||||
text width=.7cm,
|
||||
minimum height=6mm,
|
||||
inner sep=0,
|
||||
align=center,
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||||
font=\scriptsize\tt,
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anchor=north west
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}
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]
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\input{color-keyboard.tex}
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\end{tikzpicture}
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}
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\end{figure}
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\subsubsection{Payload}
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Payload of this command consist of consecutive RGB values, 1-byte per channel, we could describe this struct like that:
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\begin{verbatim}
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typedef struct {
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||||
struct {
|
||||
uint8_t r;
|
||||
uint8_t g;
|
||||
uint8_t b;
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||||
} color[SK_MAX_PAYLOAD / 3];
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||||
} skillerctl_payload_color_t;
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\end{verbatim}
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||||
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||||
\subsubsection{Examples}
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||||
\begin{figure}[h]
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||||
\begin{verbatim}
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||||
0000 04 13 01 11 03 00 00 01 ff 00 00 00 00 00 00 00
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||||
0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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||||
0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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||||
0030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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||||
\end{verbatim}
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||||
\caption{setting color of \key{Esc} to red (\texttt{ff0000h})}
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||||
\end{figure}
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||||
\begin{figure}[h]
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||||
\begin{verbatim}
|
||||
0000 04 13 01 11 09 00 00 01 ff ff ff ff ff ff ff ff
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||||
0010 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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||||
0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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||||
0030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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||||
\end{verbatim}
|
||||
\caption{setting color of \key{Esc}, \key{F1}, \key{F2} to white (\texttt{ffffffh})}
|
||||
\end{figure}
|
||||
|
||||
\end{document}
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||||
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50
src/\
50
src/\
@ -1,50 +0,0 @@
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#ifndef KEYS_H
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||||
#define KEYS_H
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
#define SK_KEY_BAD 0xffff
|
||||
#define SK_KEY_ESC 0x0000
|
||||
#define SK_KEY_F1 0x0003
|
||||
#define SK_KEY_F2 0x0006
|
||||
#define SK_KEY_F3 0x0009
|
||||
#define SK_KEY_F4 0x000C
|
||||
#define SK_KEY_F5 0x000F
|
||||
#define SK_KEY_F6 0x0012
|
||||
#define SK_KEY_F7 0x0015
|
||||
#define SK_KEY_F8 0x0018
|
||||
#define SK_KEY_F9 0x001B
|
||||
#define SK_KEY_F10 0x001E
|
||||
#define SK_KEY_F11 0x0021
|
||||
#define SK_KEY_F12 0x0024
|
||||
#define SK_KEY_PRTSC 0x002a
|
||||
#define SK_KEY_SCROLL_LOCK 0x002d
|
||||
#define SK_KEY_BREAK 0x0030
|
||||
#define SK_KEY_TILDE 0x003f
|
||||
#define SK_KEY_1 0x003f
|
||||
#define SK_KEY_2 0x003f
|
||||
#define SK_KEY_3 0x003f
|
||||
#define SK_KEY_4 0x003f
|
||||
#define SK_KEY_5 0x003f
|
||||
#define SK_KEY_6 0x003f
|
||||
#define SK_KEY_7 0x003f
|
||||
#define SK_KEY_8 0x003f
|
||||
#define SK_KEY_9 0x003f
|
||||
#define SK_KEY_0 0x003f
|
||||
#define SK_KEY_MINUS 0x003f
|
||||
#define SK_KEY_EQUALS 0x003f
|
||||
#define SK_KEY_BACKSPACE 0x003f
|
||||
#define SK_KEY_INSERT 0x003f
|
||||
#define SK_KEY_HOME 0x003f
|
||||
#define SK_KEY_PGUP 0x003f
|
||||
#define SK_KEY_NUMLOCK 0x003f
|
||||
#define SK_KEY_NUMDIV 0x003f
|
||||
#define SK_KEY_NUMASTERIX 0x003f
|
||||
#define SK_KEY_NUMMINUS 0x003f
|
||||
|
||||
typedef uint16_t skillerctl_keyaddr_t;
|
||||
|
||||
skillerctl_keyaddr_t skillerctl_keyaddr(const char* name);
|
||||
|
||||
#endif /* KEYS_H */
|
||||
|
||||
@ -112,6 +112,7 @@
|
||||
typedef uint16_t skillerctl_keyaddr_t;
|
||||
|
||||
skillerctl_keyaddr_t skillerctl_keyaddr(const char* name);
|
||||
|
||||
char* skillerctl_keystr(skillerctl_keyaddr_t key);
|
||||
|
||||
#endif /* KEYS_H */
|
||||
|
||||
19
src/usb.c
19
src/usb.c
@ -31,12 +31,19 @@ void skillerctl_send_command(libusb_device_handle *handle, skillerctl_packet_t *
|
||||
printf("Sending packet to keyboard: \n");
|
||||
hexdump(buffer, SK_PACKET_SIZE);
|
||||
|
||||
libusb_control_transfer(handle, 0x21, 9, 0x0204, 0x0001, buffer, SK_PACKET_SIZE, 250);
|
||||
libusb_interrupt_transfer(handle, SK_PORT_STATE, buffer, sizeof(buffer), &length, 250);
|
||||
ASSERT(libusb_control_transfer(
|
||||
handle,
|
||||
LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_INTERFACE,
|
||||
LIBUSB_REQUEST_SET_CONFIGURATION,
|
||||
SK_CONFIGURATION,
|
||||
SK_INTERFACE_CONTROL,
|
||||
buffer, SK_PACKET_SIZE,
|
||||
250
|
||||
));
|
||||
|
||||
ASSERT(libusb_interrupt_transfer(handle, SK_PORT_STATE, buffer, sizeof(buffer), &length, 250));
|
||||
|
||||
printf("State from keyboard: \n");
|
||||
hexdump(buffer, SK_PACKET_SIZE);
|
||||
|
||||
// we need to pretend that we're doing important stuff
|
||||
usleep(100000);
|
||||
hexdump(buffer, length);
|
||||
usleep(5000);
|
||||
}
|
||||
|
||||
@ -10,6 +10,11 @@
|
||||
#define SK_PORT_STATE 0x82
|
||||
#define SK_PORT_HID 0x81
|
||||
|
||||
#define SK_INTERFACE_HID 0
|
||||
#define SK_INTERFACE_CONTROL 1
|
||||
|
||||
#define SK_CONFIGURATION 0x0204
|
||||
|
||||
libusb_device* skillerctl_find_device(libusb_device **devices, size_t count);
|
||||
|
||||
void skillerctl_send_command(libusb_device_handle *handle, skillerctl_packet_t *packet);
|
||||
|
||||
16
src/utils.h
16
src/utils.h
@ -1,8 +1,24 @@
|
||||
#ifndef UTILS_H_
|
||||
#define UTILS_H_
|
||||
|
||||
#define ASSERT(line) do { \
|
||||
int r = line; \
|
||||
if (r < LIBUSB_SUCCESS && r < LIBUSB_ERROR_COUNT) { \
|
||||
printf("%s (%d) on %s:%d\n%s\n", libusb_error_name(r), r, __FILE__, __LINE__, #line);\
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#define ASSERT_RETURN(line, ret) do { \
|
||||
int r = line; \
|
||||
if (r < LIBUSB_SUCCESS) { \
|
||||
printf("%s on %s:%d\n%s\n", libusb_error_name(r),__FILE__, __LINE__, #line);\
|
||||
return ret;\
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
|
||||
void hexdump(void* bytes, size_t length);
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user