keyboard: Add preliminary keyboard controller
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9a67dfb1b2
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1
keyboard/.gitignore
vendored
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1
keyboard/.gitignore
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@ -0,0 +1 @@
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build-*
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4
keyboard/avr/.gitignore
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4
keyboard/avr/.gitignore
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*.hex
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*.o
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*.pro.user
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26
keyboard/avr/Makefile
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keyboard/avr/Makefile
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MCU=atmega8
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CFLAGS=-g -Wall -mcall-prologues -mmcu=$(MCU) -Os -DF_CPU=8000000
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LDFLAGS=-Wl,-gc-sections -Wl,-relax
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CC=avr-gcc
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TARGET=main
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OBJECT_FILES=main.o
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all: $(TARGET).hex
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clean:
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rm -f *.o *.hex *.obj *.hex
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%.hex: %.obj
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avr-objcopy -R .eeprom -O ihex $< $@
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%.obj: $(OBJECT_FILES)
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$(CC) $(CFLAGS) $(OBJECT_FILES) $(LDFLAGS) -o $@
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program: $(TARGET).hex
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avrdude -p $(MCU) -c usbasp -U flash:w:$(TARGET).hex
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#avrdude -p $(MCU) -P /dev/ttyUSB1 -c arduino -b 57600 -U flash:w:$(TARGET).hex
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fuse:
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avrdude -p m8 -c usbasp -U lfuse:w:0xe4:m -U hfuse:w:0xd9:m
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.phony: program fuse
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9
keyboard/avr/keyboard-controller.pro
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9
keyboard/avr/keyboard-controller.pro
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TEMPLATE = app
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CONFIG += console
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CONFIG -= app_bundle
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CONFIG -= qt
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INCLUDEPATH += /usr/avr/include
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SOURCES += \
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main.c
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257
keyboard/avr/main.c
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257
keyboard/avr/main.c
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#include <avr/io.h>
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#include <util/delay.h>
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#define MATRIX_X(t) t##B
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#define MATRIX_Y1(t) t##C
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#define MATRIX_Y2(t) t##D
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#define MATRIX_Y_SPLIT 6
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#define MATRIX_Y2_DELTA (-1)
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#define MASK_Y1 0b00111111
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#define MASK_Y2 0b11100000
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#define DELAY_ROW_SWITCH() _delay_ms(1) //_delay_us(1)
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#define BAUDRATE 9600
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#define UBRR 51 // (F_CPU / BAUDRATE) / 32
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/* Keycode from include/linux/input.h */
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#define KEY_RESERVED 0
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#define KEY_ESC 1
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#define KEY_1 2
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#define KEY_2 3
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#define KEY_3 4
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#define KEY_4 5
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#define KEY_5 6
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#define KEY_6 7
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#define KEY_7 8
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#define KEY_8 9
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#define KEY_9 10
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#define KEY_0 11
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#define KEY_MINUS 12
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#define KEY_EQUAL 13
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#define KEY_BACKSPACE 14
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#define KEY_TAB 15
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#define KEY_Q 16
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#define KEY_W 17
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#define KEY_E 18
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#define KEY_R 19
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#define KEY_T 20
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#define KEY_Y 21
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#define KEY_U 22
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#define KEY_I 23
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#define KEY_O 24
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#define KEY_P 25
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#define KEY_LEFTBRACE 26
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#define KEY_RIGHTBRACE 27
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#define KEY_ENTER 28
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#define KEY_LEFTCTRL 29
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#define KEY_A 30
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#define KEY_S 31
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#define KEY_D 32
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#define KEY_F 33
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#define KEY_G 34
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#define KEY_H 35
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#define KEY_J 36
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#define KEY_K 37
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#define KEY_L 38
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#define KEY_SEMICOLON 39
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#define KEY_APOSTROPHE 40
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#define KEY_GRAVE 41
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#define KEY_LEFTSHIFT 42
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#define KEY_BACKSLASH 43
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#define KEY_Z 44
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#define KEY_X 45
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#define KEY_C 46
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#define KEY_V 47
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#define KEY_B 48
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#define KEY_N 49
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#define KEY_M 50
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#define KEY_COMMA 51
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#define KEY_DOT 52
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#define KEY_SLASH 53
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#define KEY_RIGHTSHIFT 54
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#define KEY_KPASTERISK 55
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#define KEY_LEFTALT 56
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#define KEY_SPACE 57
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#define KEY_CAPSLOCK 58
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#define KEY_F1 59
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#define KEY_F2 60
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#define KEY_F3 61
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#define KEY_F4 62
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#define KEY_F5 63
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#define KEY_F6 64
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#define KEY_F7 65
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#define KEY_F8 66
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#define KEY_F9 67
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#define KEY_F10 68
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#define KEY_NUMLOCK 69
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#define KEY_SCROLLLOCK 70
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#define KEY_KP7 71
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#define KEY_KP8 72
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#define KEY_KP9 73
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#define KEY_KPMINUS 74
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#define KEY_KP4 75
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#define KEY_KP5 76
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#define KEY_KP6 77
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#define KEY_KPPLUS 78
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#define KEY_KP1 79
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#define KEY_KP2 80
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#define KEY_KP3 81
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#define KEY_KP0 82
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#define KEY_KPDOT 83
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#define KEY_ZENKAKUHANKAKU 85
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#define KEY_102ND 86
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#define KEY_F11 87
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#define KEY_F12 88
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#define KEY_RO 89
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#define KEY_KATAKANA 90
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#define KEY_HIRAGANA 91
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#define KEY_HENKAN 92
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#define KEY_KATAKANAHIRAGANA 93
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#define KEY_MUHENKAN 94
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#define KEY_KPJPCOMMA 95
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#define KEY_KPENTER 96
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#define KEY_RIGHTCTRL 97
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#define KEY_KPSLASH 98
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#define KEY_SYSRQ 99
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#define KEY_RIGHTALT 100
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#define KEY_LINEFEED 101
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#define KEY_HOME 102
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#define KEY_UP 103
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#define KEY_PAGEUP 104
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#define KEY_LEFT 105
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#define KEY_RIGHT 106
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#define KEY_END 107
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#define KEY_DOWN 108
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#define KEY_PAGEDOWN 109
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#define KEY_INSERT 110
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#define KEY_DELETE 111
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#define KEY_MACRO 112
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#define KEY_MUTE 113
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#define KEY_VOLUMEDOWN 114
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#define KEY_VOLUMEUP 115
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#define KEY_POWER 116 /* SC System Power Down */
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#define KEY_KPEQUAL 117
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#define KEY_KPPLUSMINUS 118
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#define KEY_PAUSE 119
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#define KEY_SCALE 120 /* AL Compiz Scale (Expose) */
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#define KEY_KPCOMMA 121
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#define KEY_HANGEUL 122
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#define KEY_HANGUEL KEY_HANGEUL
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#define KEY_HANJA 123
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#define KEY_YEN 124
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#define KEY_LEFTMETA 125
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#define KEY_RIGHTMETA 126
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#define KEY_COMPOSE 127
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#define SKEY_FN 255
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#define KEYCODE_FN 127
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static uint8_t keycode_translation_matrix[2][9][8] = {
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{ /* Standard keymap */
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{KEY_4, KEY_3, 3, 4, 5, 6, 7, 8},
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{KEY_5, KEY_6, 13, 14, 15, 16, 17, 18},
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{KEY_8, KEY_7, 23, 24, 25, 26, 27, 28},
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{KEY_1, KEY_2, 33, 34, 35, 36, 37, 38},
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{KEY_9, 42, 43, 44, 45, 46, 47, 48},
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{51, KEY_0, 53, 54, 55, 56, 57, 58},
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{61, 62, 63, 64, 65, 66, 67, 68},
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{71, 72, 73, 74, 75, SKEY_FN, 77, 78},
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{81, 82, 83, 84, 85, 86, 87, 88}
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},
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{ /* FN keymap */
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{ 1, 2, 3, 4, 5, 6, 7, 8},
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{11, 12, 13, 14, 15, 16, 17, 18},
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{21, 22, 23, 24, 25, 26, 27, 28},
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{31, 32, 33, 34, 35, 36, 37, 38},
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{41, 42, 43, 44, 45, 46, 47, 48},
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{51, 52, 53, 54, 55, 56, 57, 58},
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{61, 62, 63, 64, 65, 66, 67, 68},
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{71, 72, 73, 74, 75, SKEY_FN, 77, 78},
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{81, 82, 83, 84, 85, 86, 87, 88}
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}
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};
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uint8_t matrix_state_last_vector[9] = {0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF,
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0xFF};
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uint8_t fn_active = 0;
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void process_key_event(uint8_t col, uint8_t row, uint8_t state)
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{
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char c;
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uint8_t keycode;
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keycode = keycode_translation_matrix[fn_active][col][row];
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if (keycode == SKEY_FN) {
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fn_active = state;
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#ifdef KEYCODE_FN
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while (!(UCSRA & (1 << UDRE)));
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UDR = KEYCODE_FN | (state << 7);
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#endif
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} else {
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c = keycode | (state << 7);
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while (!(UCSRA & (1 << UDRE)));
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UDR = c;
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}
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}
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void matrix_scan_col(uint8_t col)
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{
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uint8_t matrix_state;
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uint8_t row;
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uint8_t bit;
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if (col < MATRIX_Y_SPLIT) {
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MATRIX_Y2(DDR) &= ~(MASK_Y2);
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MATRIX_Y1(DDR) = (MATRIX_Y1(DDR) & ~(MASK_Y1)) |
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(1 << col);
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} else {
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MATRIX_Y2(DDR) = (MATRIX_Y2(DDR) & ~(MASK_Y2)) |
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(1 << (col + MATRIX_Y2_DELTA));
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MATRIX_Y1(DDR) &= ~(MASK_Y1);
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}
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DELAY_ROW_SWITCH();
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matrix_state = MATRIX_X(PIN);
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for (row = 0; row < 8; ++row) {
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bit = (1 << row);
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if ((matrix_state ^ matrix_state_last_vector[col]) & bit) {
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process_key_event(col, row, !(matrix_state & bit));
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}
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}
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matrix_state_last_vector[col] = matrix_state;
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}
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int main()
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{
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int col;
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/* Config I/O */
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MATRIX_X(DDR) = 0; /* Columns as input */
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MATRIX_X(PORT) = 0xFF; /* Enable pull-ups for columns */
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MATRIX_Y1(DDR) &= ~MASK_Y1; /* Disable rows */
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MATRIX_Y2(DDR) &= ~MASK_Y2; /* Disable rows */
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MATRIX_Y1(PORT) &= ~MASK_Y1; /* Pull row low when selected */
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MATRIX_Y2(PORT) &= ~MASK_Y2; /* Pull row low when selected */
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UCSRB = (1 << TXEN);
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UBRRH = (UBRR >> 8) & 0xFF;
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UBRRL = UBRR & 0xFF;
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fn_active = 0;
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/* Continuously scan matrix */
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while (1) {
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for (col = 0; col < 9; ++col) {
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matrix_scan_col(col);
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}
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}
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}
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3
keyboard/keyboard-test-uart/.gitignore
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3
keyboard/keyboard-test-uart/.gitignore
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*.o
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*.user
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main
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4
keyboard/keyboard-test-uart/CMakeLists.txt
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keyboard/keyboard-test-uart/CMakeLists.txt
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cmake_minimum_required(VERSION 2.8)
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project(keyboard-test-uart)
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add_executable(${PROJECT_NAME} "main.c")
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158
keyboard/keyboard-test-uart/main.c
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158
keyboard/keyboard-test-uart/main.c
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#include <stdio.h>
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#define DN 0
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#define UP 1
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static char *keycode_table[] = {
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"NULL",
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"ESC",
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"1",
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"2",
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"3",
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"4",
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"5",
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"6",
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"7",
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"8",
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"9",
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"0",
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"-",
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"=",
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"BS",
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"TAB",
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"Q",
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"W",
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"E",
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"R",
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"T",
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"Y",
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"U",
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"I",
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"O",
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"P",
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"[",
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"]",
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"ENTER",
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"L CTRL",
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"A",
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"S",
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"D",
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"F",
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"G",
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"H",
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"J",
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"K",
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"L",
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";",
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"'",
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"`",
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"L SHIFT",
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"\\",
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"Z",
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"X",
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"C",
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"V",
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"B",
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"N",
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"M",
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",",
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".",
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"/",
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"R SHIFT",
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"*",
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"L ALT",
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"SPACE",
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"CAPS LOCK",
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"F1",
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"F2",
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"F3",
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"F4",
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"F5",
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"F6",
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"F7",
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"F8",
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"F9",
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"F10",
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"NUM LOCK",
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"SCROLL LOCK",
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"HOME 7",
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"UP 8",
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"PGUP 9",
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"-",
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"LEFT 4",
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"KP 5",
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"RT ARROW 6",
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"+",
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"END 1",
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"DOWN 2",
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"PGDN 3",
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"INS",
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"DEL",
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"84",
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"85",
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"86",
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"F11",
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"F12",
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"89",
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"90",
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"91",
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"92",
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"93",
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"94",
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"95",
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"R ENTER",
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"R CTRL",
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"/",
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"PRT SCR",
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"R ALT",
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"101",
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"Home",
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"Up",
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"PgUp",
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"Left",
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"Right",
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"End",
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"Down",
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"PgDn",
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"Insert",
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"Del",
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"112",
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"113",
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"114",
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"115",
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"116",
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"117",
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"118",
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"Pause"
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};
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int main()
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{
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FILE *f;
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char c;
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int ev = 0;
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f = fopen("/dev/ttyUSB1", "rwb");
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if (f) {
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while (1) {
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c = getc(f);
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if (c < 0) {
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c += 128;
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ev = DN;
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} else {
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ev = UP;
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}
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printf("Key %3d (%s) %s\n",
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c, keycode_table[c], (ev == UP ? "UP" : "DOWN"));
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}
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fclose(f);
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} else {
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fprintf(stderr, "Error: Could not open serial device.");
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}
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return 0;
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}
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