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Diffstat (limited to 'tmk_core/protocol/m0110.c')
| -rw-r--r-- | tmk_core/protocol/m0110.c | 591 |
1 files changed, 591 insertions, 0 deletions
diff --git a/tmk_core/protocol/m0110.c b/tmk_core/protocol/m0110.c new file mode 100644 index 0000000000..0d3a5aaa42 --- /dev/null +++ b/tmk_core/protocol/m0110.c @@ -0,0 +1,591 @@ +/* +Copyright 2011,2012 Jun WAKO <wakojun@gmail.com> + +This software is licensed with a Modified BSD License. +All of this is supposed to be Free Software, Open Source, DFSG-free, +GPL-compatible, and OK to use in both free and proprietary applications. +Additions and corrections to this file are welcome. + + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + +* Neither the name of the copyright holders nor the names of + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. +*/ +/* M0110A Support was contributed by skagon@github */ + +#include <stdbool.h> +#include <avr/io.h> +#include <avr/interrupt.h> +#include <util/delay.h> +#include "m0110.h" +#include "debug.h" + + +static inline uint8_t raw2scan(uint8_t raw); +static inline uint8_t inquiry(void); +static inline uint8_t instant(void); +static inline void clock_lo(void); +static inline void clock_hi(void); +static inline bool clock_in(void); +static inline void data_lo(void); +static inline void data_hi(void); +static inline bool data_in(void); +static inline uint16_t wait_clock_lo(uint16_t us); +static inline uint16_t wait_clock_hi(uint16_t us); +static inline uint16_t wait_data_lo(uint16_t us); +static inline uint16_t wait_data_hi(uint16_t us); +static inline void idle(void); +static inline void request(void); + + +#define WAIT_US(stat, us, err) do { \ + if (!wait_##stat(us)) { \ + m0110_error = err; \ + goto ERROR; \ + } \ +} while (0) + +#define WAIT_MS(stat, ms, err) do { \ + uint16_t _ms = ms; \ + while (_ms) { \ + if (wait_##stat(1000)) { \ + break; \ + } \ + _ms--; \ + } \ + if (_ms == 0) { \ + m0110_error = err; \ + goto ERROR; \ + } \ +} while (0) + +#define KEY(raw) ((raw) & 0x7f) +#define IS_BREAK(raw) (((raw) & 0x80) == 0x80) + + +uint8_t m0110_error = 0; + + +void m0110_init(void) +{ + idle(); + _delay_ms(1000); + +/* Not needed to initialize in fact. + uint8_t data; + m0110_send(M0110_MODEL); + data = m0110_recv(); + print("m0110_init model: "); phex(data); print("\n"); + + m0110_send(M0110_TEST); + data = m0110_recv(); + print("m0110_init test: "); phex(data); print("\n"); +*/ +} + +uint8_t m0110_send(uint8_t data) +{ + m0110_error = 0; + + request(); + WAIT_MS(clock_lo, 250, 1); // keyboard may block long time + for (uint8_t bit = 0x80; bit; bit >>= 1) { + WAIT_US(clock_lo, 250, 3); + if (data&bit) { + data_hi(); + } else { + data_lo(); + } + WAIT_US(clock_hi, 200, 4); + } + _delay_us(100); // hold last bit for 80us + idle(); + return 1; +ERROR: + print("m0110_send err: "); phex(m0110_error); print("\n"); + _delay_ms(500); + idle(); + return 0; +} + +uint8_t m0110_recv(void) +{ + uint8_t data = 0; + m0110_error = 0; + + WAIT_MS(clock_lo, 250, 1); // keyboard may block long time + for (uint8_t i = 0; i < 8; i++) { + data <<= 1; + WAIT_US(clock_lo, 200, 2); + WAIT_US(clock_hi, 200, 3); + if (data_in()) { + data |= 1; + } + } + idle(); + return data; +ERROR: + print("m0110_recv err: "); phex(m0110_error); print("\n"); + _delay_ms(500); + idle(); + return 0xFF; +} + +/* +Handling for exceptional case of key combinations for M0110A + +Shift and Calc/Arrow key could be operated simultaneously: + + Case Shift Arrow Events Interpret + ------------------------------------------------------------------- + 1 Down Down 71, 79, DD Calc(d)*a *b + 2 Down Up 71, 79, UU Arrow&Calc(u)*a + 3 Up Down F1, 79, DD Shift(u) *c + 4 Up Up F1, 79, UU Shift(u) and Arrow&Calc(u)*a + + Case Shift Calc Events Interpret + ------------------------------------------------------------------- + 5(1) Down Down 71, 71, 79, DD Shift(d) and Cacl(d) + 6(2) Down Up F1, 71, 79, UU Shift(u) and Arrow&Calc(u)*a + 7(1) Up Down F1, 71, 79, DD Shift(u) and Calc(d) + 8(4) Up Up F1, F1, 79, UU Shift(ux2) and Arrow&Calc(u)*a + +During Calc key is hold: + Case Shift Arrow Events Interpret + ------------------------------------------------------------------- + A(3) ---- Down F1, 79, DD Shift(u) *c + B ---- Up 79, UU Arrow&Calc(u)*a + C Down ---- F1, 71 Shift(u) and Shift(d) + D Up ---- F1 Shift(u) + E Hold Down 79, DD Normal + F Hold Up 79, UU Arrow&Calc(u)*a + G(1) Down Down F1, 71, 79, DD Shift(u)*b and Calc(d)*a + H(2) Down Up F1, 71, 79, UU Shift(u) and Arrow&Calc(u)*a + I(3) Up Down F1, F1, 79, DD Shift(ux2) *c + J(4) Up Up F1, 79, UU Shift(u) and Arrow&Calc(u)*a + + Case Shift Calc Events Interpret + ------------------------------------------------------------------- + K(1) ---- Down 71, 79, DD Calc(d)*a + L(4) ---- Up F1, 79, UU Shift(u) and Arrow&Calc(u)*a + M(1) Hold Down 71, 79, DD Calc(d)*a + N Hold Up 79, UU Arrow&Calc(u)*a + + Where DD/UU indicates part of Keypad Down/Up event. + *a: Impossible to distinguish btween Arrow and Calc event. + *b: Shift(d) event is ignored. + *c: Arrow/Calc(d) event is ignored. +*/ +uint8_t m0110_recv_key(void) +{ + static uint8_t keybuf = 0x00; + static uint8_t keybuf2 = 0x00; + static uint8_t rawbuf = 0x00; + uint8_t raw, raw2, raw3; + + if (keybuf) { + raw = keybuf; + keybuf = 0x00; + return raw; + } + if (keybuf2) { + raw = keybuf2; + keybuf2 = 0x00; + return raw; + } + + if (rawbuf) { + raw = rawbuf; + rawbuf = 0x00; + } else { + raw = instant(); // Use INSTANT for better response. Should be INQUIRY ? + } + switch (KEY(raw)) { + case M0110_KEYPAD: + raw2 = instant(); + switch (KEY(raw2)) { + case M0110_ARROW_UP: + case M0110_ARROW_DOWN: + case M0110_ARROW_LEFT: + case M0110_ARROW_RIGHT: + if (IS_BREAK(raw2)) { + // Case B,F,N: + keybuf = (raw2scan(raw2) | M0110_CALC_OFFSET); // Calc(u) + return (raw2scan(raw2) | M0110_KEYPAD_OFFSET); // Arrow(u) + } + break; + } + // Keypad or Arrow + return (raw2scan(raw2) | M0110_KEYPAD_OFFSET); + break; + case M0110_SHIFT: + raw2 = instant(); + switch (KEY(raw2)) { + case M0110_SHIFT: + // Case: 5-8,C,G,H + rawbuf = raw2; + return raw2scan(raw); // Shift(d/u) + break; + case M0110_KEYPAD: + // Shift + Arrow, Calc, or etc. + raw3 = instant(); + switch (KEY(raw3)) { + case M0110_ARROW_UP: + case M0110_ARROW_DOWN: + case M0110_ARROW_LEFT: + case M0110_ARROW_RIGHT: + if (IS_BREAK(raw)) { + if (IS_BREAK(raw3)) { + // Case 4: + print("(4)\n"); + keybuf2 = raw2scan(raw); // Shift(u) + keybuf = (raw2scan(raw3) | M0110_CALC_OFFSET); // Calc(u) + return (raw2scan(raw3) | M0110_KEYPAD_OFFSET); // Arrow(u) + } else { + // Case 3: + print("(3)\n"); + return (raw2scan(raw)); // Shift(u) + } + } else { + if (IS_BREAK(raw3)) { + // Case 2: + print("(2)\n"); + keybuf = (raw2scan(raw3) | M0110_CALC_OFFSET); // Calc(u) + return (raw2scan(raw3) | M0110_KEYPAD_OFFSET); // Arrow(u) + } else { + // Case 1: + print("(1)\n"); + return (raw2scan(raw3) | M0110_CALC_OFFSET); // Calc(d) + } + } + break; + default: + // Shift + Keypad + keybuf = (raw2scan(raw3) | M0110_KEYPAD_OFFSET); + return raw2scan(raw); // Shift(d/u) + break; + } + break; + default: + // Shift + Normal keys + keybuf = raw2scan(raw2); + return raw2scan(raw); // Shift(d/u) + break; + } + break; + default: + // Normal keys + return raw2scan(raw); + break; + } +} + + +static inline uint8_t raw2scan(uint8_t raw) { + return (raw == M0110_NULL) ? M0110_NULL : ( + (raw == M0110_ERROR) ? M0110_ERROR : ( + ((raw&0x80) | ((raw&0x7F)>>1)) + ) + ); +} + +static inline uint8_t inquiry(void) +{ + m0110_send(M0110_INQUIRY); + return m0110_recv(); +} + +static inline uint8_t instant(void) +{ + m0110_send(M0110_INSTANT); + uint8_t data = m0110_recv(); + if (data != M0110_NULL) { + debug_hex(data); debug(" "); + } + return data; +} + +static inline void clock_lo() +{ + M0110_CLOCK_PORT &= ~(1<<M0110_CLOCK_BIT); + M0110_CLOCK_DDR |= (1<<M0110_CLOCK_BIT); +} +static inline void clock_hi() +{ + /* input with pull up */ + M0110_CLOCK_DDR &= ~(1<<M0110_CLOCK_BIT); + M0110_CLOCK_PORT |= (1<<M0110_CLOCK_BIT); +} +static inline bool clock_in() +{ + M0110_CLOCK_DDR &= ~(1<<M0110_CLOCK_BIT); + M0110_CLOCK_PORT |= (1<<M0110_CLOCK_BIT); + _delay_us(1); + return M0110_CLOCK_PIN&(1<<M0110_CLOCK_BIT); +} +static inline void data_lo() +{ + M0110_DATA_PORT &= ~(1<<M0110_DATA_BIT); + M0110_DATA_DDR |= (1<<M0110_DATA_BIT); +} +static inline void data_hi() +{ + /* input with pull up */ + M0110_DATA_DDR &= ~(1<<M0110_DATA_BIT); + M0110_DATA_PORT |= (1<<M0110_DATA_BIT); +} +static inline bool data_in() +{ + M0110_DATA_DDR &= ~(1<<M0110_DATA_BIT); + M0110_DATA_PORT |= (1<<M0110_DATA_BIT); + _delay_us(1); + return M0110_DATA_PIN&(1<<M0110_DATA_BIT); +} + +static inline uint16_t wait_clock_lo(uint16_t us) +{ + while (clock_in() && us) { asm(""); _delay_us(1); us--; } + return us; +} +static inline uint16_t wait_clock_hi(uint16_t us) +{ + while (!clock_in() && us) { asm(""); _delay_us(1); us--; } + return us; +} +static inline uint16_t wait_data_lo(uint16_t us) +{ + while (data_in() && us) { asm(""); _delay_us(1); us--; } + return us; +} +static inline uint16_t wait_data_hi(uint16_t us) +{ + while (!data_in() && us) { asm(""); _delay_us(1); us--; } + return us; +} + +static inline void idle(void) +{ + clock_hi(); + data_hi(); +} + +static inline void request(void) +{ + clock_hi(); + data_lo(); +} + + + +/* +Primitive M0110 Library for AVR +============================== + + +Signaling +--------- +CLOCK is always from KEYBOARD. DATA are sent with MSB first. + +1) IDLE: both lines are high. + CLOCK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + DATA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +2) KEYBOARD->HOST: HOST reads bit on rising edge. + CLOCK ~~~~~~~~~~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~~~~~~~~~ + DATA ~~~~~~~~~~~~X777777X666666X555555X444444X333333X222222X111111X000000X~~~~~~~ + <--> 160us(clock low) + <---> 180us(clock high) + +3) HOST->KEYBOARD: HOST asserts bit on falling edge. + CLOCK ~~~~~~~~~~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~~~~~~~~~ + DATA ~~~~~~|_____X777777X666666X555555X444444X333333X222222X111111X000000X~~~~~~~ + <----> 840us(request to send by host) <---> 80us(hold DATA) + <--> 180us(clock low) + <---> 220us(clock high) + + +Protocol +-------- +COMMAND: + Inquiry 0x10 get key event with block + Instant 0x12 get key event + Model 0x14 get model number(M0110 responds with 0x09) + bit 7 1 if another device connected(used when keypad exists?) + bit4-6 next device model number + bit1-3 keyboard model number + bit 0 always 1 + Test 0x16 test(ACK:0x7D/NAK:0x77) + +KEY EVENT: + bit 7 key state(0:press 1:release) + bit 6-1 scan code(see below) + bit 0 always 1 + To get scan code use this: ((bits&(1<<7)) | ((bits&0x7F))>>1). + + Note: On the M0110A, Keypad keys and Arrow keys are preceded by 0x79. + Moreover, some Keypad keys(=, /, * and +) are preceded by 0x71 on press and 0xF1 on release. + +ARROW KEYS: + Arrow keys and Calc keys(+,*,/,= on keypad) share same byte sequence and preceding byte of + Calc keys(0x71 and 0xF1) means press and release event of SHIFT. This causes a very confusing situation, + it is difficult or impossible to tell Calc key from Arrow key plus SHIFT in some cases. + + Raw key events: + press release + ---------------- ---------------- + Left: 0x79, 0x0D 0x79, 0x8D + Right: 0x79, 0x05 0x79, 0x85 + Up: 0x79, 0x1B 0x79, 0x9B + Down: 0x79, 0x11 0x79, 0x91 + Pad+: 0x71, 0x79, 0x0D 0xF1, 0x79, 0x8D + Pad*: 0x71, 0x79, 0x05 0xF1, 0x79, 0x85 + Pad/: 0x71, 0x79, 0x1B 0xF1, 0x79, 0x9B + Pad=: 0x71, 0x79, 0x11 0xF1, 0x79, 0x91 + + +RAW CODE: + M0110A + ,---------------------------------------------------------. ,---------------. + | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Bcksp| |Clr| =| /| *| + |---------------------------------------------------------| |---------------| + |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| | | 7| 8| 9| -| + |-----------------------------------------------------' | |---------------| + |CapsLo| A| S| D| F| G| H| J| K| L| ;| '|Return| | 4| 5| 6| +| + |---------------------------------------------------------| |---------------| + |Shift | Z| X| C| V| B| N| M| ,| ,| /|Shft|Up | | 1| 2| 3| | + |---------------------------------------------------------' |-----------|Ent| + |Optio|Mac | Space | \|Lft|Rgt|Dn | | 0| .| | + `---------------------------------------------------------' `---------------' + ,---------------------------------------------------------. ,---------------. + | 65| 25| 27| 29| 2B| 2F| 2D| 35| 39| 33| 3B| 37| 31| 67| |+0F|*11|*1B|*05| + |---------------------------------------------------------| |---------------| + | 61| 19| 1B| 1D| 1F| 23| 21| 41| 45| 3F| 47| 43| 3D| | |+33|+37|+39|+1D| + |-----------------------------------------------------' | |---------------| + | 73| 01| 03| 05| 07| 0B| 09| 4D| 51| 4B| 53| 4F| 49| |+2D|+2F|+31|*0D| + |---------------------------------------------------------| |---------------| + | 71| 0D| 0F| 11| 13| 17| 5B| 5D| 27| 5F| 59| 71|+1B| |+27|+29|+2B| | + |---------------------------------------------------------' |-----------|+19| + | 75| 6F| 63 | 55|+0D|+05|+11| | +25|+03| | + `---------------------------------------------------------' `---------------' + + 0x79, 0xDD / 0xF1, 0xUU + * 0x71, 0x79,DD / 0xF1, 0x79, 0xUU + + +MODEL NUMBER: + M0110: 0x09 00001001 : model number 4 (100) + M0110A: 0x0B 00001011 : model number 5 (101) + M0110 & M0120: ??? + + +Scan Code +--------- + m0110_recv_key() function returns following scan codes instead of M0110 raw codes. + Scan codes are 1 byte size and MSB(bit7) is set when key is released. + + scancode = ((raw&0x80) | ((raw&0x7F)>>1)) + + M0110 M0120 + ,---------------------------------------------------------. ,---------------. + | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backs| |Clr| -|Lft|Rgt| + |---------------------------------------------------------| |---------------| + |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \| | 7| 8| 9|Up | + |---------------------------------------------------------| |---------------| + |CapsLo| A| S| D| F| G| H| J| K| L| ;| '|Return| | 4| 5| 6|Dn | + |---------------------------------------------------------| |---------------| + |Shift | Z| X| C| V| B| N| M| ,| ,| /| | | 1| 2| 3| | + `---------------------------------------------------------' |-----------|Ent| + |Opt|Mac | Space |Enter|Opt| | 0| .| | + `------------------------------------------------' `---------------' + ,---------------------------------------------------------. ,---------------. + | 32| 12| 13| 14| 15| 17| 16| 1A| 1C| 19| 1D| 1B| 18| 33| | 47| 4E| 46| 42| + |---------------------------------------------------------| |---------------| + | 30| 0C| 0D| 0E| 0F| 10| 11| 20| 22| 1F| 23| 21| 1E| 2A| | 59| 5B| 5C| 4D| + |---------------------------------------------------------| |---------------| + | 39| 00| 01| 02| 03| 05| 04| 26| 28| 25| 29| 27| 24| | 56| 57| 58| 48| + |---------------------------------------------------------| |---------------| + | 38| 06| 07| 08| 09| 0B| 2D| 2E| 2B| 2F| 2C| 38| | 53| 54| 55| | + `---------------------------------------------------------' |-----------| 4C| + | 3A| 37| 31 | 34| 3A| | 52| 41| | + `------------------------------------------------' `---------------' + + International keyboard(See page 22 of "Technical Info for 128K/512K") + ,---------------------------------------------------------. + | 32| 12| 13| 14| 15| 17| 16| 1A| 1C| 19| 1D| 1B| 18| 33| + |---------------------------------------------------------| + | 30| 0C| 0D| 0E| 0F| 10| 11| 20| 22| 1F| 23| 21| 1E| 2A| + |------------------------------------------------------ | + | 39| 00| 01| 02| 03| 05| 04| 26| 28| 25| 29| 27| 24| | + |---------------------------------------------------------| + | 38| 06| 07| 08| 09| 0B| 2D| 2E| 2B| 2F| 2C| 0A| 38| + `---------------------------------------------------------' + | 3A| 37| 34 | 31| 3A| + `------------------------------------------------' + + M0110A + ,---------------------------------------------------------. ,---------------. + | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Bcksp| |Clr| =| /| *| + |---------------------------------------------------------| |---------------| + |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| | | 7| 8| 9| -| + |-----------------------------------------------------' | |---------------| + |CapsLo| A| S| D| F| G| H| J| K| L| ;| '|Return| | 4| 5| 6| +| + |---------------------------------------------------------| |---------------| + |Shift | Z| X| C| V| B| N| M| ,| ,| /|Shft|Up | | 1| 2| 3| | + |---------------------------------------------------------' |-----------|Ent| + |Optio|Mac | Space | \|Lft|Rgt|Dn | | 0| .| | + `---------------------------------------------------------' `---------------' + ,---------------------------------------------------------. ,---------------. + | 32| 12| 13| 14| 15| 17| 16| 1A| 1C| 19| 1D| 1B| 18| 33| | 47| 68| 6D| 62| + |---------------------------------------------------------| |---------------| + | 30| 0C| 0D| 0E| 0F| 10| 11| 20| 22| 1F| 23| 21| 1E| | | 59| 5B| 5C| 4E| + |-----------------------------------------------------' | |---------------| + | 39| 00| 01| 02| 03| 05| 04| 26| 28| 25| 29| 27| 24| | 56| 57| 58| 66| + |---------------------------------------------------------| |---------------| + | 38| 06| 07| 08| 09| 0B| 2D| 2E| 2B| 2F| 2C| 38| 4D| | 53| 54| 55| | + |---------------------------------------------------------' |-----------| 4C| + | 3A| 37| 31 | 2A| 46| 42| 48| | 52| 41| | + `---------------------------------------------------------' `---------------' + + +References +---------- +Technical Info for 128K/512K and Plus + ftp://ftp.apple.asimov.net/pub/apple_II/documentation/macintosh/Mac%20Hardware%20Info%20-%20Mac%20128K.pdf + ftp://ftp.apple.asimov.net/pub/apple_II/documentation/macintosh/Mac%20Hardware%20Info%20-%20Mac%20Plus.pdf +Protocol: + Page 20 of Tech Info for 128K/512K + http://www.mac.linux-m68k.org/devel/plushw.php +Connector: + Page 20 of Tech Info for 128K/512K + http://www.kbdbabel.org/conn/kbd_connector_macplus.png +Signaling: + http://www.kbdbabel.org/signaling/kbd_signaling_mac.png + http://typematic.blog.shinobi.jp/Entry/14/ +M0110 raw scan codes: + Page 22 of Tech Info for 128K/512K + Page 07 of Tech Info for Plus + http://m0115.web.fc2.com/m0110.jpg + http://m0115.web.fc2.com/m0110a.jpg +*/ |