From 54b5bafaacf0d7863b7bdb84dd69cbc80db77956 Mon Sep 17 00:00:00 2001 From: tmk Date: Thu, 14 Oct 2010 17:36:00 +0900 Subject: add directories for each keyboard: hhkb, macway --- hhkb/Makefile | 72 ++++++++++++++++ hhkb/doc/HHKB.txt | 186 ++++++++++++++++++++++++++++++++++++++++ hhkb/doc/HHKB_TP1684.jpg | Bin 0 -> 149082 bytes hhkb/doc/HHKB_chart1.jpg | Bin 0 -> 155342 bytes hhkb/doc/HHKB_chart2.jpg | Bin 0 -> 148225 bytes hhkb/doc/HHKB_connector.jpg | Bin 0 -> 193900 bytes hhkb/doc/HHKB_controller.jpg | Bin 0 -> 135100 bytes hhkb/doc/HHKB_keyswitch.jpg | Bin 0 -> 171469 bytes hhkb/doc/connector_contact.jpg | Bin 0 -> 192830 bytes hhkb/doc/logic_analyzer.jpg | Bin 0 -> 169564 bytes hhkb/doc/probe_contact.jpg | Bin 0 -> 208477 bytes hhkb/doc/teensy_install.jpg | Bin 0 -> 135851 bytes hhkb/doc/teensy_wiring.jpg | Bin 0 -> 154695 bytes hhkb/keymap.c | 189 +++++++++++++++++++++++++++++++++++++++++ hhkb/keymap.h | 20 +++++ hhkb/matrix.c | 91 ++++++++++++++++++++ 16 files changed, 558 insertions(+) create mode 100644 hhkb/Makefile create mode 100644 hhkb/doc/HHKB.txt create mode 100755 hhkb/doc/HHKB_TP1684.jpg create mode 100755 hhkb/doc/HHKB_chart1.jpg create mode 100755 hhkb/doc/HHKB_chart2.jpg create mode 100755 hhkb/doc/HHKB_connector.jpg create mode 100755 hhkb/doc/HHKB_controller.jpg create mode 100755 hhkb/doc/HHKB_keyswitch.jpg create mode 100755 hhkb/doc/connector_contact.jpg create mode 100755 hhkb/doc/logic_analyzer.jpg create mode 100755 hhkb/doc/probe_contact.jpg create mode 100755 hhkb/doc/teensy_install.jpg create mode 100755 hhkb/doc/teensy_wiring.jpg create mode 100644 hhkb/keymap.c create mode 100644 hhkb/keymap.h create mode 100644 hhkb/matrix.c (limited to 'hhkb') diff --git a/hhkb/Makefile b/hhkb/Makefile new file mode 100644 index 000000000..980980cfe --- /dev/null +++ b/hhkb/Makefile @@ -0,0 +1,72 @@ +# Hey Emacs, this is a -*- makefile -*- +#---------------------------------------------------------------------------- +# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al. +# +# Released to the Public Domain +# +# Additional material for this makefile was written by: +# Peter Fleury +# Tim Henigan +# Colin O'Flynn +# Reiner Patommel +# Markus Pfaff +# Sander Pool +# Frederik Rouleau +# Carlos Lamas +# +#---------------------------------------------------------------------------- +# On command line: +# +# make all = Make software. +# +# make clean = Clean out built project files. +# +# make coff = Convert ELF to AVR COFF. +# +# make extcoff = Convert ELF to AVR Extended COFF. +# +# make program = Download the hex file to the device, using avrdude. +# Please customize the avrdude settings below first! +# +# make debug = Start either simulavr or avarice as specified for debugging, +# with avr-gdb or avr-insight as the front end for debugging. +# +# make filename.s = Just compile filename.c into the assembler code only. +# +# make filename.i = Create a preprocessed source file for use in submitting +# bug reports to the GCC project. +# +# To rebuild project do "make clean" then "make all". +#---------------------------------------------------------------------------- + + +# Target file name (without extension). +TARGET = tmk_hhkb + +# Directory common source filess exist +COMMON_DIR = .. + +# Directory keyboard dependent files exist +TARGET_DIR = . + +# keyboard dependent files +TARGET_SRC = keymap.c \ + matrix.c + + +# MCU name, you MUST set this to match the board you are using +# type "make clean" after changing this, so all files will be rebuilt +#MCU = at90usb162 # Teensy 1.0 +#MCU = atmega32u4 # Teensy 2.0 +#MCU = at90usb646 # Teensy++ 1.0 +MCU = at90usb1286 # Teensy++ 2.0 + + +# Processor frequency. +# Normally the first thing your program should do is set the clock prescaler, +# so your program will run at the correct speed. You should also set this +# variable to same clock speed. The _delay_ms() macro uses this, and many +# examples use this variable to calculate timings. Do not add a "UL" here. +F_CPU = 16000000 + +include $(COMMON_DIR)/Makefile.common diff --git a/hhkb/doc/HHKB.txt b/hhkb/doc/HHKB.txt new file mode 100644 index 000000000..9440efebf --- /dev/null +++ b/hhkb/doc/HHKB.txt @@ -0,0 +1,186 @@ +Alternative Controller for HHKB pro +=================================== +I want to add vi cursor and mouse keys to HHKB. Original HHKB controller is not programmable and +firmware source code is not open. So, customizing HHKB needs to replace original controller with programmable one. +I used Teensy++ as alternative controller. Though a Teensy has enough ports to drive HHKB, +Teensy++ has clean pinout and it makes programing and wiring easier. + +This is just a proof of concept for replacing controller of HHKB, not a complete firmware. + +My prototype firmware source tree is here: + branch: hhkb(http://github.com/tmk/tmk_keyboard/tree/hhkb) +This firmware is a port of my previous project: + HHKB style Mod(http://geekhack.org/showwiki.php?title=Island:11930) +PJRC: + Teensy++/Teensy(http://www.pjrc.com/teensy/) + + +Pros: + * without pattern cutting, case mod and soldering + * can keep original controller intact + * can change HHKB behaviour as you like(by C programming) + +Cons: + * void your warranty + * unavailability of Teensy++/Teensy(because of PS3 cracking boom?) + +Features: + * customized keymap + * more keymap layers + * mouse keys for minimum mouse operation(never comfortable for normal use) + * and more...(in the future) + +Any suggestions or ideas are welcome. + + +NOTE: + My HHKB is just "Professional". This means followings may not be applied to "Professional2". + +DISCLAIMER: + I'm not a professional for electronics and MCU programming. This may damage your HHKB. + And my English writing is poor, I'm not sure I can convey my notions accurately. + + +Teensy++ installation +--------------------- +Angled USB mini B adapter is used to install Teensy++ laterally. +(teensy_install.jpg) + +Bread baord cables used for connect Teensy++. +(teensy_wiring.jpg) +(connector_contact.jpg) + + +HHKB internal +------------- +HHKB pro has two PCBs and some chips. + +Controller PCB: + M38K07M4 Renesas MCU with USB function + http://documentation.renesas.com/eng/products/mpumcu/rej03b0192_38k0ds.pdf + + (HHKB_controller.jpg) + +Keyswitch PCB: + HC4051 Analog Multiplexer: select a row line. + http://www.alldatasheet.com/datasheet-pdf/pdf/203989/KODENSHI/KK74HC4051A.html + LS145 BCD Decoder: select a column line. + http://www.alldatasheet.com/datasheet-pdf/pdf/27373/TI/SN74LS145D.html + BU9831 Non-volatile electronic potentiometer: for calibration? + http://www.alldatasheet.com/datasheet-pdf/pdf/36387/ROHM/BU9831.html + TP1684 Capacitive Sensing controller: no datasheet available. + + (HHKB_keyswitch.jpg) + + Topre original chip? + (HHKB_TP1684.jpg) + + +Two PCBs are connected by 15 lines. Vcc/GND uses 3 lines each, 9lines for keyboard signaling. + + Keyswitch PCB connector Teensy++ pins + ------------------------------------------------------------------------------- + 1 Vcc(5V) 5V + 2 Vcc(5V) + 3 Vcc(5V) + 4 TP1684 KEY: Low(0) when key pressed PE6 input(with pullup) + 5 TP1684 unknown:how to use PE7 input(with pullup) + 6 HC4051 A(bit0) select 8 rows(0 to 7) PB0 output + 7 HC4051 B(bit1) PB1 output + 8 HC4051 C(bit2) PB2 output + 9 LS145 A(bit0) select 8 columns(0 to 7) PB3 output + 10 LS145 B(bit1) PB4 output + 11 LS145 C(bit2) PB5 output + 12 LS145 D(enable) Low(0) enable selected column PB6 output + 13 GND + 14 GND + 15 GND GND + + (HHKB_connector.jpg) + + +Keyswitch matrix +---------------- +60 keyswitches in 8*8 matrix. ghost free. bounce free. + + COL 0 1 2 3 4 5 6 7 +ROW --------------------------------------------------------------- + 0| 2 q w s a z x c + 1| 3 4 r e d f v b + 2| 5 6 y t g h n _NONE_ + 3| 1 Esc Tab Control LShift LAlt LMeta Space + 4| 7 8 u i k j m _NONE_ + 5| \ ` Delete Return Fn RShift RAlt RMeta + 6| 9 0 o p ; l , _NONE_ + 7| - + ] [ ' / . _NONE_ + + +Matrix diagram: + +-------------------------+-+-+-+-+-+-+-+ Vcc + |bias control? - - - - - - - - --- + | 3.9K*8 R R R R R R R R | + +--------^+ +--------+ - - - - - - - - | + | TP 1684 | | HC4051 <0-------|-|-|-|-|-|-|-|--|R|-+ + | |capa. | <1-------|-|-|-|-|-|-|-|--|R|-+ + | |sense | <2-------|-|-|-|-|-|-|-|--|R|-+ + | <------| <3-------|-|-|-|-|-|-|-|--|R|-+ + | | | <4-------|-|-|-|-|-|-|-|--|R|-+ + | | | <5-------|-|-|-|-|-|-|-|--|R|-+ + | |calib.| <6-------|-|-|-|-|-|-|-|--|R|-+ + | <-+? | <7-------|-|-|-|-|-|-|-|--|R|-+ + +---V-----+ | +-^-^-^--+ 0 1 2 3 4 5 6 7 33K*8 + KEY ??? | A B C +-----------------+ + | | +-^----+ | | | | LS145 | + Vcc | | |BU9831| | | | +-^--^--^--^------+ + --- | | +------+ | | | A B C D +------+ + | | | | | | | | | | | | + 1-3 4 5 6 7 8 9 10 11 12 13-15 | + +--------------------------------------------------+ | + | connector | --- + +--------------------------------------------------+ GND + to controller + + +Signals charts: + While pressing space bar, watched HHKB original controller signals by logic analyzer. + Row and column is looping between 0-7 each for selecting a key. + A key is scaned every about 15ms, so scan rate is 66Hz. + + (HHKB_chart1.jpg) + + Space bar locate at ROW:3 COL:7. Key are selected by HC4051(C,B,A) and LS145(C,B,A). + Key state can be read on TP1684(4/KEY) while asserting low on LS145(D). + Usage of TP1684(5) is unknown. Key state can be read without using this signal. + + (HHKB_chart2.jpg) + + +Matrix scan pseudo code: + for (row: 0-7) { + SELECT_ROW(row); // set HC4051(A,B,C) + + for (col: 0-7) { + SELECT_COL(col); // set LS145(A,B,C) + + _delay_us(50); + + ENALBLE_COL(); // set LS145(D) to low + + _delay_us(10); + + if (KEY == 0) { // read TP1684(KEY) + // key pressed + } else { + // not pressed + } + } + } + + +Keymap layers +------------- +Followings are added layers with additional Fn keys. They are not final decision. + +see keymap_hhkb.c + +EOF diff --git a/hhkb/doc/HHKB_TP1684.jpg b/hhkb/doc/HHKB_TP1684.jpg new file mode 100755 index 000000000..0a0316409 Binary files /dev/null and b/hhkb/doc/HHKB_TP1684.jpg differ diff --git a/hhkb/doc/HHKB_chart1.jpg b/hhkb/doc/HHKB_chart1.jpg new file mode 100755 index 000000000..1f09bd185 Binary files /dev/null and b/hhkb/doc/HHKB_chart1.jpg differ diff --git a/hhkb/doc/HHKB_chart2.jpg b/hhkb/doc/HHKB_chart2.jpg new file mode 100755 index 000000000..45f5ada90 Binary files /dev/null and b/hhkb/doc/HHKB_chart2.jpg differ diff --git a/hhkb/doc/HHKB_connector.jpg b/hhkb/doc/HHKB_connector.jpg new file mode 100755 index 000000000..e8a09e9b2 Binary files /dev/null and b/hhkb/doc/HHKB_connector.jpg differ diff --git a/hhkb/doc/HHKB_controller.jpg b/hhkb/doc/HHKB_controller.jpg new file mode 100755 index 000000000..e3dae8e86 Binary files /dev/null and b/hhkb/doc/HHKB_controller.jpg differ diff --git a/hhkb/doc/HHKB_keyswitch.jpg b/hhkb/doc/HHKB_keyswitch.jpg new file mode 100755 index 000000000..3afc269e7 Binary files /dev/null and b/hhkb/doc/HHKB_keyswitch.jpg differ diff --git a/hhkb/doc/connector_contact.jpg b/hhkb/doc/connector_contact.jpg new file mode 100755 index 000000000..5304bc8d7 Binary files /dev/null and b/hhkb/doc/connector_contact.jpg differ diff --git a/hhkb/doc/logic_analyzer.jpg b/hhkb/doc/logic_analyzer.jpg new file mode 100755 index 000000000..f1b438ae7 Binary files /dev/null and b/hhkb/doc/logic_analyzer.jpg differ diff --git a/hhkb/doc/probe_contact.jpg b/hhkb/doc/probe_contact.jpg new file mode 100755 index 000000000..dc79afa0c Binary files /dev/null and b/hhkb/doc/probe_contact.jpg differ diff --git a/hhkb/doc/teensy_install.jpg b/hhkb/doc/teensy_install.jpg new file mode 100755 index 000000000..873d988ed Binary files /dev/null and b/hhkb/doc/teensy_install.jpg differ diff --git a/hhkb/doc/teensy_wiring.jpg b/hhkb/doc/teensy_wiring.jpg new file mode 100755 index 000000000..1c4eb6743 Binary files /dev/null and b/hhkb/doc/teensy_wiring.jpg differ diff --git a/hhkb/keymap.c b/hhkb/keymap.c new file mode 100644 index 000000000..d7e6bbe3b --- /dev/null +++ b/hhkb/keymap.c @@ -0,0 +1,189 @@ +/* + * keymap for HHKB pro + */ +#include +#include +#include "matrix.h" +#include "keymap.h" +#include "usb_keyboard.h" + +int current_layer = 0; +bool key_sent = false; + +/* + * Layer0(Default Layer) + * ,-----------------------------------------------------------. + * |Esc| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =| \| `| + * |-----------------------------------------------------------| + * |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]|Backs| + * |-----------------------------------------------------------| + * |Contro| A| S| D| F| G| H| J| K| L| ;| '|Return | + * |-----------------------------------------------------------| + * |Shift | Z| X| C| V| B| N| M| ,| .| /|Fn2 |Fn1| + * `-----------------------------------------------------------' + * |Gui|Alt |Space |Fn3 |Gui| + * `-------------------------------------------' + * + * Layer1(Fn) HHKB mode + * ,-----------------------------------------------------------. + * |Pow| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del| + * |-----------------------------------------------------------| + * |Caps | | | | | | | |Psc|Slk|Pus|Up | |Backs| + * |-----------------------------------------------------------| + * |Contro|VoD|VoU|Mut| | | *| /|Hom|PgU|Lef|Rig|Enter | + * |-----------------------------------------------------------| + * |Shift | | | | | | +| -|End|PgD|Dow|Shift |xxx| + * `-----------------------------------------------------------' + * |Gui |Alt |Space |Alt |Gui| + * `--------------------------------------------' + * + * Layer3(RALT) vi mode + * ,-----------------------------------------------------------. + * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del| + * |-----------------------------------------------------------| + * |Tab | | | | | |Hom|PgD|PgUlEnd| | | |Backs| + * |-----------------------------------------------------------| + * |Contro| | | | | |Lef|Dow|Up |Rig| | |Return | + * |-----------------------------------------------------------| + * |Shift | | | | | |McL|McD|McU|McR|Mb1|Mb2 | | + * `-----------------------------------------------------------' + * |Gui|Alt |Sapce |xxxxx|Mb3| + * `-------------------------------------------' + * + * Layer4(semicolon) mouse mode + * ,-----------------------------------------------------------. + * |Esc| | | | | | | | | | | | | | | + * |-----------------------------------------------------------| + * |Tab | | | | | |MwL|MwD|MwU|MwR| | | |Backs| + * |-----------------------------------------------------------| + * |Contro| | | | | |McL|McD|McU|McR|xxx| |Return | + * |-----------------------------------------------------------| + * |Shift | | | | | | |Mb1|Mb2|Mb3| |Shift | | + * `-----------------------------------------------------------' + * |Gui |Alt |Mb1 |Alt |Gui| + * `--------------------------------------------' + * + * Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel + */ + +/* keycode sent when Fn key released without using layer keys. */ +static const uint8_t PROGMEM FnKey[] = { + KB_NO, // this must be KB_NO. (not used) + KB_NO, // FN_1 + KB_RALT, // FN_2 + KB_SCOLON, // FN_3 +}; + +static const uint8_t PROGMEM Keymap[][MATRIX_ROWS][MATRIX_COLS] = { +/* plain keymap + { + { KB_2, KB_Q, KB_W, KB_S, KB_A, KB_Z, KB_X, KB_C }, + { KB_3, KB_4, KB_R, KB_E, KB_D, KB_F, KB_V, KB_B }, + { KB_5, KB_6, KB_Y, KB_T, KB_G, KB_H, KB_N, KB_NO }, + { KB_1, KB_ESCAPE, KB_TAB, KB_LCTRL, KB_LSHIFT, KB_LGUI, KB_LALT, KB_SPACE }, + { KB_7, KB_8, KB_U, KB_I, KB_K, KB_J, KB_M, KB_NO }, + { KB_BSLASH, KB_GRAVE, KB_BSPACE, KB_ENTER, FN_1, KB_RSHIFT, KB_RGUI, KB_RALT }, + { KB_9, KB_0, KB_O, KB_P, KB_SCOLON, KB_L, KB_COMMA, KB_NO }, + { KB_MINUS, KB_EQUAL, KB_RBRACKET,KB_LBRACKET,KB_QUOTE, KB_SLASH, KB_DOT, KB_NO }, + }, +*/ + // 0: default + { + { KB_2, KB_Q, KB_W, KB_S, KB_A, KB_Z, KB_X, KB_C }, + { KB_3, KB_4, KB_R, KB_E, KB_D, KB_F, KB_V, KB_B }, + { KB_5, KB_6, KB_Y, KB_T, KB_G, KB_H, KB_N, KB_NO }, + { KB_1, KB_ESCAPE, KB_TAB, KB_LCTRL, KB_LSHIFT, KB_LGUI, KB_LALT, KB_SPACE }, + { KB_7, KB_8, KB_U, KB_I, KB_K, KB_J, KB_M, KB_NO }, + { KB_BSLASH, KB_GRAVE, KB_BSPACE, KB_ENTER, FN_1, KB_RSHIFT, KB_RGUI, FN_2 }, + { KB_9, KB_0, KB_O, KB_P, FN_3, KB_L, KB_COMMA, KB_NO }, + { KB_MINUS, KB_EQUAL, KB_RBRACKET,KB_LBRACKET,KB_QUOTE, KB_SLASH, KB_DOT, KB_NO }, + }, + // 1: FN_1 HHKB mode(Fn) + { + { KB_F2, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO }, + { KB_F3, KB_F4, KB_NO, KB_NO, KB_MUTE, KB_F20, KB_NO, KB_NO }, + { KB_F5, KB_F6, KB_NO, KB_NO, KB_NO, KP_ASTERISK,KP_PLUS, KB_NO }, + { KB_F1, KB_POWER, KB_CAPSLOCK,KB_LCTRL, KB_LSHIFT, KB_LGUI, KB_LALT, KB_SPACE }, + { KB_F7, KB_F8, KB_NO, KB_PSCREEN, KB_HOME, KP_SLASH, KB_MINUS, KB_NO }, + { KB_INSERT, KB_DELETE, KB_BSPACE, KP_ENTER, KB_NO, KB_RSHIFT, KB_RGUI, KB_RALT }, + { KB_F9, KB_F10, KB_SCKLOCK, KB_BREAK, KB_LEFT, KB_PGUP, KB_END, KB_NO }, + { KB_F11, KB_F12, KB_NO, KB_UP, KB_RIGHT, KB_DOWN, KB_PGDOWN, KB_NO }, + }, + // 2: FN_2 vi mode(RALT) + { + { KB_F2, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO }, + { KB_F3, KB_F4, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO }, + { KB_F5, KB_F6, KB_HOME, KB_NO, KB_NO, KB_LEFT, MS_LEFT, KB_NO }, + { KB_F1, KB_ESCAPE, KB_TAB, KB_LCTRL, KB_LSHIFT, KB_LGUI, KB_LALT, KB_SPACE }, + { KB_F7, KB_F8, KB_PGDOWN, KB_PGUP, KB_UP, KB_DOWN, MS_DOWN, KB_NO }, + { KB_INSERT, KB_DELETE, KB_BSPACE, KB_ENTER, KB_NO, MS_BTN2, MS_BTN3, KB_NO }, + { KB_F9, KB_F10, KB_END, KB_NO, KB_NO, KB_RIGHT, MS_UP, KB_NO }, + { KB_F11, KB_F12, MS_WH_UP, MS_WH_DOWN, KB_NO, MS_BTN1, MS_RIGHT, KB_NO }, + }, + // 3: FN_3 vi mouse mode(SCOLON) + { + { KB_F2, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO }, + { KB_F3, KB_F4, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO, KB_NO }, + { KB_F5, KB_F6, MS_WH_LEFT, KB_NO, KB_NO, MS_LEFT, KB_NO, KB_NO }, + { KB_F1, KB_ESCAPE, KB_TAB, KB_LCTRL, KB_LSHIFT, KB_LGUI, KB_LALT, MS_BTN1 }, + { KB_F7, KB_F8, MS_WH_DOWN, MS_WH_UP, MS_UP, MS_DOWN, MS_BTN1, KB_NO }, + { KB_NO, KB_NO, KB_BSPACE, KB_ENTER, KB_NO, KB_RSHIFT, KB_RGUI, KB_RALT }, + { KB_F9, KB_F10, MS_WH_RIGHT,KB_NO, KB_NO, MS_RIGHT, MS_BTN2, KB_NO }, + { KB_F11, KB_F12, KB_NO, KB_NO, KB_NO, KB_NO, MS_BTN3, KB_NO }, + }, +}; + + +uint8_t get_keycode(int layer, int row, int col) +{ + if (row >= MATRIX_ROWS) + return KB_NO; + if (col >= MATRIX_COLS) + return KB_NO; + return pgm_read_byte(&Keymap[layer][row][col]); +} + +int get_layer(void) { + // keep modifier state when Fn key pressed + static uint8_t preserved_modifiers = 0; + int layer = 0; + uint8_t modifiers = 0; + for (int row = 0; row < MATRIX_ROWS; row++) { + for (int col = 0; col < MATRIX_ROWS; col++) { + if (matrix[row] & 1< +#include +#include "usb_keycodes.h" + + +#define MATRIX_ROWS 8 +#define MATRIX_COLS 8 + + +extern int current_layer; +extern bool key_sent; + + +int get_layer(void); +uint8_t get_keycode(int layer, int row, int col); + +#endif diff --git a/hhkb/matrix.c b/hhkb/matrix.c new file mode 100644 index 000000000..3034a6361 --- /dev/null +++ b/hhkb/matrix.c @@ -0,0 +1,91 @@ +/* + * scan matrix + */ +#include +#include +#include "keymap.h" +#include "matrix.h" +#include "print.h" + +// matrix is active low. (key on: 0/key off: 1) +// +// HHKB has no ghost and no bounce. +// row: HC4051 select input channel(0-8) +// PB0, PB1, PB2(A, B, C) +// col: LS145 select low output line(0-8) +// PB3, PB4, PB5, PB6(A, B, C, D) +// use D as ENABLE: (enable: 0/unenable: 1) +// key: KEY: (on: 0/ off:1) +// UNKNOWN: unknown whether input or output +// PE6,PE7(KEY, UNKNOWN) +#define COL_ENABLE (1<<6) +#define KEY_SELELCT(ROW, COL) (PORTB = COL_ENABLE|(((COL)&0x07)<<3)|((ROW)&0x07)) +#define KEY_ENABLE (PORTB &= ~COL_ENABLE) +#define KEY_UNABLE (PORTB |= COL_ENABLE) +#define KEY_ON ((PINE&(1<<6)) ? false : true) + +// matrix state buffer +uint8_t *matrix; +uint8_t *matrix_prev; +static uint8_t _matrix0[MATRIX_ROWS]; +static uint8_t _matrix1[MATRIX_ROWS]; + + +// this must be called once before matrix_scan. +void matrix_init(void) +{ + // row & col output(PB0-6) + DDRB = 0xFF; + PORTB = KEY_SELELCT(0, 0); + // KEY & VALID input with pullup(PE6,7) + DDRE = 0x3F; + PORTE = 0xC0; + + // initialize matrix state: all keys off + for (int i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0xFF; + for (int i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0xFF; + matrix = _matrix0; + matrix_prev = _matrix1; +} + +uint8_t matrix_scan(void) +{ + uint8_t *tmp; + + tmp = matrix_prev; + matrix_prev = matrix; + matrix = tmp; + + for (int row = 0; row < MATRIX_ROWS; row++) { + for (int col = 0; col < MATRIX_COLS; col++) { + KEY_SELELCT(row, col); + _delay_us(50); // from logic analyzer chart + KEY_ENABLE; + _delay_us(10); // from logic analyzer chart + if (KEY_ON) { + matrix[row] &= ~(1<