mirror of
https://github.com/openstenoproject/qmk
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ADB to USB keyboard converter
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tmk
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134
ADB.txt
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134
ADB.txt
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ADB Protocol
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============
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Resources
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---------
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Apple IIgs Hardware Reference Second Edition [p80(Chapter6 p121)]
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ftp://ftp.apple.asimov.net/pub/apple_II/documentation/Apple%20IIgs%20Hardware%20Reference.pdf
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ADB Keycode
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http://72.0.193.250/Documentation/macppc/adbkeycodes/
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http://m0115.web.fc2.com/m0115.jpg
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ADB Signaling
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http://kbdbabel.sourceforge.net/doc/kbd_signaling_pcxt_ps2_adb.pdf
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ADB Overview & History
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http://en.wikipedia.org/wiki/Apple_Desktop_Bus
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Microchip Application Note: ADB device(with code for PIC16C)
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http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011062
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AVR ATtiny2131 ADB to PS/2 converter(Japanese)
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http://hp.vector.co.jp/authors/VA000177/html/KeyBoardA5DEA5CBA5A2II.html
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Pinouts
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-------
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Female socket from the front
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4o o3
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2o o1
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==
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1: Data
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2: Power SW(low when press Power key)
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3: Vcc(5V)
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4: GND
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Commands
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--------
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ADB command is 1byte and consists of 4bit-address, 2bit-command
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type and 2bit-register. The commands are always sent by Host.
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Command format:
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7 6 5 4 3 2 1 0
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| | | |------------ address
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| |-------- command type
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| |---- register
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bits commands
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------------------------------------------------------
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- - - - 0 0 0 0 Send Request(reset all devices)
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A A A A 0 0 0 1 Flush(reset a device)
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- - - - 0 0 1 0 Reserved
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- - - - 0 0 1 1 Reserved
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- - - - 0 1 - - Reserved
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A A A A 1 0 R R Listen(write to a device)
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A A A A 1 1 R R Talk(read from a device)
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The command to read keycodes from keyboard is 0x2C which
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consist of keyboard address 2 and Talk against register 0.
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Address:
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2: keyboard
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3: mice
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Registers:
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0: application(keyobard/mice use to store its data.)
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1: application
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2: application
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3: status and command
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Communication
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-------------
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This is a minimum information for keyboard communication.
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See "Resources" for detail.
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Signaling:
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~~~~____________~~||||||||||||__~~~~~_~~|||||||||||||||__~~~~
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|800us | |7 Command 0| | | |15-64 Data 0|Stopbit(0)
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+Attention | | | +Startbit(1)
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+Startbit(1) | +Tlt(140-260us)
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+stopbit(0)
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Bit cells:
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bit0: ______~~~
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65 :35us
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bit1: ___~~~~~~
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35 :65us
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bit0 low time: 60-70% of bit cell(42-91us)
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bit1 low time: 30-40% of bit cell(21-52us)
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bit cell time: 70-130us
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[from Apple IIgs Hardware Reference Second Edition]
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Criterion for bit0/1:
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After 55us if line is low/high then bit is 0/1.
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Attention & start bit:
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Host asserts low in 560-1040us then places start bit(1).
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Tlt(Stop to Start):
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Bus stays high in 140-260us then device places start bit(1).
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Global reset:
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Host asserts low in 2.8-5.2ms. All devices are forced to reset.
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Send request from device(Srq):
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Device can request to send at commad(Global only?) stop bit.
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keep low for 300us to request.
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Keyboard data(register0)
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This 16bit data can contains 2 keycodes and 2 released flags.
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First keycode is palced in upper nibble. When one keyocode is sent,
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lower nibble is 0xFF.
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Release flag is 1 when key is released.
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15 14 . . . . . 8 7 6 . . . . . 0
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| |keycode1 | |keycode2
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|released(1) |released(1)
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Keycodes:
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Scancode consists of 7bit keycode and 1bit release flag.
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Device can send two keycodes at once. If just one keycode is sent
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keycode1 contains it and keyocode2 is 0xFF.
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Power switch:
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You can read the state from PSW line(active low) however
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the switch has a special scancode 0x7F7F, so you can
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also read from Data line. It uses 0xFFFF for release scancode.
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END_OF_ADB
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180
adb.c
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180
adb.c
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#include <stdbool.h>
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#include <util/delay.h>
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#include <avr/io.h>
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#include "adb.h"
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static inline void data_lo(void);
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static inline void data_hi(void);
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static inline bool data_in(void);
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#ifdef ADB_PSW_BIT
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static inline void psw_lo(void);
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static inline void psw_hi(void);
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static inline bool psw_in(void);
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#endif
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static inline void attention(void);
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static inline void place_bit0(void);
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static inline void place_bit1(void);
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static inline void send_byte(uint8_t data);
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static inline bool read_bit(void);
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static inline uint8_t read_byte(void);
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static inline uint8_t wait_data_lo(uint8_t us);
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static inline uint8_t wait_data_hi(uint8_t us);
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void adb_host_init(void)
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{
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data_hi();
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#ifdef ADB_PSW_BIT
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psw_hi();
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#endif
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}
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#ifdef ADB_PSW_BIT
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bool adb_host_psw(void)
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{
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return psw_in();
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}
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#endif
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uint16_t adb_host_kbd_recv(void)
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{
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uint16_t data = 0;
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attention();
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send_byte(0x2C); // Addr:2, Cmd:talk(11), Reg:0(00)
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place_bit0(); // Stopbit
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if (!wait_data_lo(0xFF)) // Stop to Start(140-260us)
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return 0; // No data to send
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if (!read_bit()) // Startbit(1)
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return -2;
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data = read_byte();
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data = (data<<8) | read_byte();
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if (read_bit()) // Stopbit(0)
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return -3;
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return data;
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}
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static inline void data_lo()
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{
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ADB_DDR |= (1<<ADB_DATA_BIT);
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ADB_PORT &= ~(1<<ADB_DATA_BIT);
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}
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static inline void data_hi()
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{
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ADB_PORT |= (1<<ADB_DATA_BIT);
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ADB_DDR &= ~(1<<ADB_DATA_BIT);
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}
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static inline bool data_in()
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{
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ADB_PORT |= (1<<ADB_DATA_BIT);
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ADB_DDR &= ~(1<<ADB_DATA_BIT);
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return ADB_PIN&(1<<ADB_DATA_BIT);
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}
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#ifdef ADB_PSW_BIT
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static inline void psw_lo()
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{
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ADB_DDR |= (1<<ADB_PSW_BIT);
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ADB_PORT &= ~(1<<ADB_PSW_BIT);
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}
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static inline void psw_hi()
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{
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ADB_PORT |= (1<<ADB_PSW_BIT);
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ADB_DDR &= ~(1<<ADB_PSW_BIT);
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}
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static inline bool psw_in()
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{
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ADB_PORT |= (1<<ADB_PSW_BIT);
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ADB_DDR &= ~(1<<ADB_PSW_BIT);
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return ADB_PIN&(1<<ADB_PSW_BIT);
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}
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#endif
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static inline void attention(void)
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{
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data_lo();
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_delay_us(700);
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place_bit1();
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}
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static inline void place_bit0(void)
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{
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data_lo();
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_delay_us(65);
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data_hi();
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_delay_us(35);
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}
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static inline void place_bit1(void)
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{
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data_lo();
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_delay_us(35);
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data_hi();
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_delay_us(65);
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}
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static inline void send_byte(uint8_t data)
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{
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for (int i = 0; i < 8; i++) {
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if (data&(0x80>>i))
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place_bit1();
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else
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place_bit0();
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}
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}
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static inline bool read_bit(void)
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{
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// ADB Bit Cells
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//
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// bit0: ______~~~
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// 65 :35us
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//
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// bit1: ___~~~~~~
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// 35 :65us
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//
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// bit0 low time: 60-70% of bit cell(42-91us)
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// bit1 low time: 30-40% of bit cell(21-52us)
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// bit cell time: 70-130us
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// [from Apple IIgs Hardware Reference Second Edition]
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//
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// After 55us if data line is low/high then bit is 0/1.
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// Too simple to rely on?
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bool bit;
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wait_data_lo(75); // wait the beginning of bit cell
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_delay_us(55);
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bit = data_in();
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wait_data_hi(36); // wait high part of bit cell
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return bit;
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}
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static inline uint8_t read_byte(void)
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{
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uint8_t data = 0;
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for (int i = 0; i < 8; i++) {
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data <<= 1;
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if (read_bit())
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data = data | 1;
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}
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return data;
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}
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static inline uint8_t wait_data_lo(uint8_t us)
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{
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while (data_in() && us) {
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_delay_us(1);
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us--;
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}
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return us;
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}
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static inline uint8_t wait_data_hi(uint8_t us)
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{
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while (!data_in() && us) {
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_delay_us(1);
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us--;
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}
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return us;
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}
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18
adb.h
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18
adb.h
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#ifndef ADB_H
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#define ADB_H
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#include <stdbool.h>
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#if !(defined(ADB_PORT) && \
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defined(ADB_PIN) && \
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defined(ADB_DDR) && \
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defined(ADB_DATA_BIT))
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# error "ADB port setting is required in config.h"
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#endif
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// ADB host
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void adb_host_init(void);
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bool adb_host_psw(void);
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uint16_t adb_host_kbd_recv(void);
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#endif
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82
adb/Makefile
Normal file
82
adb/Makefile
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# Hey Emacs, this is a -*- makefile -*-
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#----------------------------------------------------------------------------
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# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.
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#
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# Released to the Public Domain
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#
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# Additional material for this makefile was written by:
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# Peter Fleury
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# Tim Henigan
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# Colin O'Flynn
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# Reiner Patommel
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# Markus Pfaff
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# Sander Pool
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# Frederik Rouleau
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# Carlos Lamas
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#
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#----------------------------------------------------------------------------
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# On command line:
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#
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# make all = Make software.
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#
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# make clean = Clean out built project files.
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#
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# make coff = Convert ELF to AVR COFF.
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#
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# make extcoff = Convert ELF to AVR Extended COFF.
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#
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# make program = Download the hex file to the device, using avrdude.
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# Please customize the avrdude settings below first!
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#
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# make debug = Start either simulavr or avarice as specified for debugging,
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# with avr-gdb or avr-insight as the front end for debugging.
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#
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# make filename.s = Just compile filename.c into the assembler code only.
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#
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# make filename.i = Create a preprocessed source file for use in submitting
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# bug reports to the GCC project.
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#
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# To rebuild project do "make clean" then "make all".
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#----------------------------------------------------------------------------
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# Target file name (without extension).
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TARGET = tmk_adb
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# Directory common source filess exist
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COMMON_DIR = ..
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# Directory keyboard dependent files exist
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TARGET_DIR = .
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# keyboard dependent files
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TARGET_SRC = keymap.c \
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matrix.c \
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adb.c
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# MCU name, you MUST set this to match the board you are using
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# type "make clean" after changing this, so all files will be rebuilt
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#MCU = at90usb162 # Teensy 1.0
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MCU = atmega32u4 # Teensy 2.0
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#MCU = at90usb646 # Teensy++ 1.0
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#MCU = at90usb1286 # Teensy++ 2.0
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# Processor frequency.
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# Normally the first thing your program should do is set the clock prescaler,
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# so your program will run at the correct speed. You should also set this
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# variable to same clock speed. The _delay_ms() macro uses this, and many
|
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# examples use this variable to calculate timings. Do not add a "UL" here.
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F_CPU = 16000000
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# Build Options
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# comment out to disable the options.
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#
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MOUSEKEY_ENABLE = yes # Mouse keys
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#PS2_MOUSE_ENABLE = yes # PS/2 mouse(TrackPoint) support
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USB_EXTRA_ENABLE = yes # Enhanced feature for Windows(Audio control and System control)
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#USB_NKRO_ENABLE = yes # USB Nkey Rollover
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include $(COMMON_DIR)/Makefile.common
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19
adb/README
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19
adb/README
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ADB to USB keyboard converter
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=============================
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This firmware converts ADB keyboard protocol to USB.
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Build
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-----
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0. Connect ADB keyboard to Teensy by 3 lines(Vcc, GND, Data).
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PSW line is optional. See ADB.txt for details.
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1. Define following macros for ADB connection in config.h:
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ADB_PORT
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ADB_PIN
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ADB_DDR
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ADB_DATA_BIT
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ADB_PSW_BIT
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2. make
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3. program Teensy.
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EOF
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47
adb/config.h
Normal file
47
adb/config.h
Normal file
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#ifndef CONFIG_H
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#define CONFIG_H
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/* controller configuration */
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#include "controller_teensy.h"
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#define VENDOR_ID 0xFEED
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#define PRODUCT_ID 0x0ADB
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#define MANUFACTURER t.m.k.
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#define PRODUCT ADB keyboard converter
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#define DESCRIPTION convert ADB keyboard to USB
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/* matrix size */
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#define MATRIX_ROWS 16 // keycode bit: 3-0
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#define MATRIX_COLS 8 // keycode bit: 6-4
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/* define if matrix has ghost */
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//#define MATRIX_HAS_GHOST
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/* USB NKey Rollover */
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#ifdef USB_NKRO_ENABLE
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#endif
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/* mouse keys */
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#ifdef MOUSEKEY_ENABLE
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# define MOUSEKEY_DELAY_TIME 192
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#endif
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/* PS/2 mouse */
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#ifdef PS2_MOUSE_ENABLE
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# define PS2_CLOCK_PORT PORTF
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# define PS2_CLOCK_PIN PINF
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# define PS2_CLOCK_DDR DDRF
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# define PS2_CLOCK_BIT 0
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# define PS2_DATA_PORT PORTF
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# define PS2_DATA_PIN PINF
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# define PS2_DATA_DDR DDRF
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# define PS2_DATA_BIT 1
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#endif
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/* ADB port setting */
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#define ADB_PORT PORTF
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#define ADB_PIN PINF
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#define ADB_DDR DDRF
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#define ADB_DATA_BIT 0
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//#define ADB_PSW_BIT 1 // optional
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#endif
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135
adb/keymap.c
Normal file
135
adb/keymap.c
Normal file
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@ -0,0 +1,135 @@
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/*
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* Keymap for ADB keyboard
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include <avr/pgmspace.h>
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#include "usb_keyboard.h"
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#include "usb_keycodes.h"
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#include "print.h"
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#include "debug.h"
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#include "util.h"
|
||||
#include "keymap_skel.h"
|
||||
|
||||
|
||||
// Convert physical keyboard layout to matrix array.
|
||||
// This is a macro to define keymap easily in keyboard layout form.
|
||||
|
||||
// TODO: ADB to USB default keymap
|
||||
// TODO: keymap macro template for m0116/m0115
|
||||
/* Apple Keyboard m0116
|
||||
K7F, \
|
||||
K35, K12, K13, K14, K15, K17, K16, K1A, K1C, K19, K1D, K1B, K18, K33, K47, K51, K4B, K43, \
|
||||
K30, K0C, K0D, K0E, K0F, K10, K11, K20, K22, K1F, K23, K21, K1E, K59, K5B, K5C, K4E, \
|
||||
K36, K00, K01, K02, K03, K05, K04, K26, K28, K25, K29, K27, K24, K56, K57, K58, K45, \
|
||||
K38, K06, K07, K08, K09, K0B, K2D, K2E, K2B, K2F, K2C, K7B, K53, K54, K55, \
|
||||
K39, K3A, K37, K32, K31, K2A, K3B, K3C, K3D, K3E, K52, K41, K4C \
|
||||
*/
|
||||
|
||||
/* no tenkey
|
||||
K7F, \
|
||||
K35, K12, K13, K14, K15, K17, K16, K1A, K1C, K19, K1D, K1B, K18, K33, \
|
||||
K30, K0C, K0D, K0E, K0F, K10, K11, K20, K22, K1F, K23, K21, K1E, \
|
||||
K36, K00, K01, K02, K03, K05, K04, K26, K28, K25, K29, K27, K24, \
|
||||
K38, K06, K07, K08, K09, K0B, K2D, K2E, K2B, K2F, K2C, K7B, \
|
||||
K39, K3A, K37, K32, K31, K2A, K3B, K3C, K3D, K3E \
|
||||
*/
|
||||
#define KEYMAP( \
|
||||
K7F, \
|
||||
K35, K12, K13, K14, K15, K17, K16, K1A, K1C, K19, K1D, K1B, K18, K33, \
|
||||
K30, K0C, K0D, K0E, K0F, K10, K11, K20, K22, K1F, K23, K21, K1E, \
|
||||
K36, K00, K01, K02, K03, K05, K04, K26, K28, K25, K29, K27, K24, \
|
||||
K38, K06, K07, K08, K09, K0B, K2D, K2E, K2B, K2F, K2C, K7B, \
|
||||
K39, K3A, K37, K32, K31, K2A, K3B, K3C, K3D, K3E \
|
||||
) { \
|
||||
{ K00, K01, K02, K03, K04, K05, K06, K07 }, \
|
||||
{ K08, K09, 000, K0B, K0C, K0D, K0E, K0F }, \
|
||||
{ K10, K11, K12, K13, K14, K15, K16, K17 }, \
|
||||
{ K18, K19, K1A, K1B, K1C, K1D, K1E, K1F }, \
|
||||
{ K20, K21, K22, K23, K24, K25, K26, K27 }, \
|
||||
{ K28, K29, K2A, K2B, K2C, K2D, K2E, K2F }, \
|
||||
{ K30, K31, K32, K33, 000, K35, K36, K37 }, \
|
||||
{ K38, K39, K3A, K3B, K3C, K3D, K3E, 000 }, \
|
||||
{ 000, 000, 000, 000, 000, 000, 000, 000 }, \
|
||||
{ 000, 000, 000, 000, 000, 000, 000, 000 }, \
|
||||
{ 000, 000, 000, 000, 000, 000, 000, 000 }, \
|
||||
{ 000, 000, 000, 000, 000, 000, 000, 000 }, \
|
||||
{ 000, 000, 000, 000, 000, 000, 000, 000 }, \
|
||||
{ 000, 000, 000, 000, 000, 000, 000, 000 }, \
|
||||
{ 000, 000, 000, 000, 000, 000, 000, 000 }, \
|
||||
{ 000, 000, 000, K7B, 000, 000, 000, K7F }, \
|
||||
}
|
||||
|
||||
#define KEYCODE(layer, row, col) (pgm_read_byte(&keymaps[(layer)][(row)][(col)]))
|
||||
|
||||
|
||||
// Assign Fn key(0-7) to a layer to which switch with the Fn key pressed.
|
||||
static const uint8_t PROGMEM fn_layer[] = {
|
||||
0, // FN_0
|
||||
0, // FN_1
|
||||
0, // FN_2
|
||||
0, // FN_3
|
||||
0, // FN_4
|
||||
0, // FN_5
|
||||
0, // FN_6
|
||||
0 // FN_7
|
||||
};
|
||||
|
||||
// Assign Fn key(0-7) to a keycode sent when release Fn key without use of the layer.
|
||||
// See layer.c for details.
|
||||
static const uint8_t PROGMEM fn_keycode[] = {
|
||||
KB_NO, // FN_0
|
||||
KB_NO, // FN_1
|
||||
KB_NO, // FN_2
|
||||
KB_NO, // FN_3
|
||||
KB_NO, // FN_4
|
||||
KB_NO, // FN_5
|
||||
KB_NO, // FN_6
|
||||
KB_NO // FN_7
|
||||
};
|
||||
|
||||
static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
|
||||
/* Layer 0: Default Layer
|
||||
* ,---------------------------------------------------------.
|
||||
* |Esc| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backs|
|
||||
* |---------------------------------------------------------|
|
||||
* |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| |
|
||||
* |-----------------------------------------------------' |
|
||||
* |Contro| A| S| D| F| G| H| J| K| L|Fn3| '|Return|
|
||||
* |---------------------------------------------------------|
|
||||
* |Shift | Z| X| C| V| B| N| M| ,| .| /|Shift |
|
||||
* |---------------------------------------------------------|
|
||||
* |Shi|Alt|Gui l `| | \|Lef|Rig|Dow|Up |
|
||||
* `---------------------------------------------------------'
|
||||
*/
|
||||
KEYMAP(KB_PWR, \
|
||||
KB_ESC, KB_1, KB_2, KB_3, KB_4, KB_5, KB_6, KB_7, KB_8, KB_9, KB_0, KB_MINS,KB_EQL, KB_BSPC, \
|
||||
KB_TAB, KB_Q, KB_W, KB_E, KB_R, KB_T, KB_Y, KB_U, KB_I, KB_O, KB_P, KB_LBRC,KB_RBRC, \
|
||||
KB_LCTL,KB_A, KB_S, KB_D, KB_F, KB_G, KB_H, KB_J, KB_K, KB_L, KB_SCLN,KB_QUOT,KB_ENT, \
|
||||
KB_LSFT,KB_Z, KB_X, KB_C, KB_V, KB_B, KB_N, KB_M, KB_COMM,KB_DOT, KB_SLSH,KB_RSFT, \
|
||||
KB_LSFT,KB_LALT,KB_LGUI,KB_GRV, KB_SPC, KB_BSLS,KB_LEFT,KB_RGHT,KB_DOWN,KB_UP),
|
||||
|
||||
};
|
||||
|
||||
|
||||
uint8_t keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t col)
|
||||
{
|
||||
return KEYCODE(layer, row, col);
|
||||
}
|
||||
|
||||
uint8_t keymap_fn_layer(uint8_t fn_bits)
|
||||
{
|
||||
return pgm_read_byte(&fn_layer[biton(fn_bits)]);
|
||||
}
|
||||
|
||||
uint8_t keymap_fn_keycode(uint8_t fn_bits)
|
||||
{
|
||||
return pgm_read_byte(&fn_keycode[(biton(fn_bits))]);
|
||||
}
|
||||
|
||||
// define a condition to enter special function mode
|
||||
bool keymap_is_special_mode(uint8_t fn_bits)
|
||||
{
|
||||
//return (usb_keyboard_mods == (BIT_LCTRL | BIT_LSHIFT | BIT_LALT | BIT_LGUI));
|
||||
return (usb_keyboard_mods == (BIT_RSHIFT));
|
||||
}
|
||||
194
adb/matrix.c
Normal file
194
adb/matrix.c
Normal file
|
|
@ -0,0 +1,194 @@
|
|||
/*
|
||||
* scan matrix
|
||||
*/
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <avr/io.h>
|
||||
#include <util/delay.h>
|
||||
#include "print.h"
|
||||
#include "util.h"
|
||||
#include "debug.h"
|
||||
#include "adb.h"
|
||||
#include "matrix_skel.h"
|
||||
|
||||
|
||||
#if (MATRIX_COLS > 16)
|
||||
# error "MATRIX_COLS must not exceed 16"
|
||||
#endif
|
||||
#if (MATRIX_ROWS > 255)
|
||||
# error "MATRIX_ROWS must not exceed 255"
|
||||
#endif
|
||||
|
||||
|
||||
static bool _matrix_is_modified = false;
|
||||
|
||||
// matrix state buffer(1:on, 0:off)
|
||||
#if (MATRIX_COLS <= 8)
|
||||
static uint8_t *matrix;
|
||||
static uint8_t _matrix0[MATRIX_ROWS];
|
||||
#else
|
||||
static uint16_t *matrix;
|
||||
static uint16_t _matrix0[MATRIX_ROWS];
|
||||
#endif
|
||||
|
||||
#ifdef MATRIX_HAS_GHOST
|
||||
static bool matrix_has_ghost_in_row(uint8_t row);
|
||||
#endif
|
||||
static void _register_key(uint8_t key);
|
||||
|
||||
|
||||
inline
|
||||
uint8_t matrix_rows(void)
|
||||
{
|
||||
return MATRIX_ROWS;
|
||||
}
|
||||
|
||||
inline
|
||||
uint8_t matrix_cols(void)
|
||||
{
|
||||
return MATRIX_COLS;
|
||||
}
|
||||
|
||||
void matrix_init(void)
|
||||
{
|
||||
adb_host_init();
|
||||
|
||||
// initialize matrix state: all keys off
|
||||
for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
|
||||
matrix = _matrix0;
|
||||
|
||||
print_enable = true;
|
||||
debug_enable = true;
|
||||
debug_matrix = true;
|
||||
debug_keyboard = true;
|
||||
debug_mouse = true;
|
||||
print("debug enabled.\n");
|
||||
return;
|
||||
}
|
||||
|
||||
uint8_t matrix_scan(void)
|
||||
{
|
||||
uint16_t codes;
|
||||
uint8_t key0, key1;
|
||||
|
||||
_matrix_is_modified = false;
|
||||
|
||||
codes = adb_host_kbd_recv();
|
||||
key0 = codes>>8;
|
||||
key1 = codes&0xFF;
|
||||
if (debug_matrix) {
|
||||
//print("adb_host_kbd_recv: "); phex16(codes); print("\n");
|
||||
}
|
||||
|
||||
if (codes == 0) { // no keys
|
||||
return 0;
|
||||
} else if (key0 == 0xFF && key1 != 0xFF) { // error
|
||||
return codes&0xFF;
|
||||
} else {
|
||||
_matrix_is_modified = true;
|
||||
_register_key(key0);
|
||||
if (key1 != 0xFF) // key1 is 0xFF when no second key.
|
||||
_register_key(key1);
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
bool matrix_is_modified(void)
|
||||
{
|
||||
return _matrix_is_modified;
|
||||
}
|
||||
|
||||
inline
|
||||
bool matrix_has_ghost(void)
|
||||
{
|
||||
#ifdef MATRIX_HAS_GHOST
|
||||
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
||||
if (matrix_has_ghost_in_row(i))
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
return false;
|
||||
}
|
||||
|
||||
inline
|
||||
bool matrix_is_on(uint8_t row, uint8_t col)
|
||||
{
|
||||
return (matrix[row] & (1<<col));
|
||||
}
|
||||
|
||||
inline
|
||||
#if (MATRIX_COLS <= 8)
|
||||
uint8_t matrix_get_row(uint8_t row)
|
||||
#else
|
||||
uint16_t matrix_get_row(uint8_t row)
|
||||
#endif
|
||||
{
|
||||
return matrix[row];
|
||||
}
|
||||
|
||||
void matrix_print(void)
|
||||
{
|
||||
#if (MATRIX_COLS <= 8)
|
||||
print("\nr/c 01234567\n");
|
||||
#else
|
||||
print("\nr/c 0123456789ABCDEF\n");
|
||||
#endif
|
||||
for (uint8_t row = 0; row < matrix_rows(); row++) {
|
||||
phex(row); print(": ");
|
||||
#if (MATRIX_COLS <= 8)
|
||||
pbin_reverse(matrix_get_row(row));
|
||||
#else
|
||||
pbin_reverse16(matrix_get_row(row));
|
||||
#endif
|
||||
#ifdef MATRIX_HAS_GHOST
|
||||
if (matrix_has_ghost_in_row(row)) {
|
||||
print(" <ghost");
|
||||
}
|
||||
#endif
|
||||
print("\n");
|
||||
}
|
||||
}
|
||||
|
||||
uint8_t matrix_key_count(void)
|
||||
{
|
||||
uint8_t count = 0;
|
||||
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
||||
#if (MATRIX_COLS <= 8)
|
||||
count += bitpop(matrix[i]);
|
||||
#else
|
||||
count += bitpop16(matrix[i]);
|
||||
#endif
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
#ifdef MATRIX_HAS_GHOST
|
||||
inline
|
||||
static bool matrix_has_ghost_in_row(uint8_t row)
|
||||
{
|
||||
// no ghost exists in case less than 2 keys on
|
||||
if (((matrix[row] - 1) & matrix[row]) == 0)
|
||||
return false;
|
||||
|
||||
// ghost exists in case same state as other row
|
||||
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
|
||||
if (i != row && (matrix[i] & matrix[row]) == matrix[row])
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
#endif
|
||||
|
||||
inline
|
||||
static void _register_key(uint8_t key)
|
||||
{
|
||||
uint8_t col, row;
|
||||
col = key&0x07;
|
||||
row = (key>>3)&0x0F;
|
||||
if (key&0x80) {
|
||||
matrix[row] &= ~(1<<col);
|
||||
} else {
|
||||
matrix[row] |= (1<<col);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue