tmk
15 years ago
parent
1f5cd6d7dc
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56e098d76e
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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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@ -0,0 +1,180 @@ |
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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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@ -0,0 +1,18 @@ |
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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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@ -0,0 +1,82 @@ |
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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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@ -0,0 +1,19 @@ |
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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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@ -0,0 +1,47 @@ |
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#ifndef CONFIG_H |
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#define CONFIG_H |
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|
/* controller configuration */ |
||||||
|
#include "controller_teensy.h" |
||||||
|
|
||||||
|
#define VENDOR_ID 0xFEED |
||||||
|
#define PRODUCT_ID 0x0ADB |
||||||
|
#define MANUFACTURER t.m.k. |
||||||
|
#define PRODUCT ADB keyboard converter |
||||||
|
#define DESCRIPTION convert ADB keyboard to USB |
||||||
|
|
||||||
|
/* matrix size */ |
||||||
|
#define MATRIX_ROWS 16 // keycode bit: 3-0
|
||||||
|
#define MATRIX_COLS 8 // keycode bit: 6-4
|
||||||
|
/* define if matrix has ghost */ |
||||||
|
//#define MATRIX_HAS_GHOST
|
||||||
|
|
||||||
|
/* USB NKey Rollover */ |
||||||
|
#ifdef USB_NKRO_ENABLE |
||||||
|
#endif |
||||||
|
|
||||||
|
/* mouse keys */ |
||||||
|
#ifdef MOUSEKEY_ENABLE |
||||||
|
# define MOUSEKEY_DELAY_TIME 192 |
||||||
|
#endif |
||||||
|
|
||||||
|
/* PS/2 mouse */ |
||||||
|
#ifdef PS2_MOUSE_ENABLE |
||||||
|
# define PS2_CLOCK_PORT PORTF |
||||||
|
# define PS2_CLOCK_PIN PINF |
||||||
|
# define PS2_CLOCK_DDR DDRF |
||||||
|
# define PS2_CLOCK_BIT 0 |
||||||
|
# define PS2_DATA_PORT PORTF |
||||||
|
# define PS2_DATA_PIN PINF |
||||||
|
# define PS2_DATA_DDR DDRF |
||||||
|
# define PS2_DATA_BIT 1 |
||||||
|
#endif |
||||||
|
|
||||||
|
/* ADB port setting */ |
||||||
|
#define ADB_PORT PORTF |
||||||
|
#define ADB_PIN PINF |
||||||
|
#define ADB_DDR DDRF |
||||||
|
#define ADB_DATA_BIT 0 |
||||||
|
//#define ADB_PSW_BIT 1 // optional
|
||||||
|
|
||||||
|
#endif |
||||||
@ -0,0 +1,135 @@ |
|||||||
|
/*
|
||||||
|
* Keymap for ADB keyboard |
||||||
|
*/ |
||||||
|
#include <stdint.h> |
||||||
|
#include <stdbool.h> |
||||||
|
#include <avr/pgmspace.h> |
||||||
|
#include "usb_keyboard.h" |
||||||
|
#include "usb_keycodes.h" |
||||||
|
#include "print.h" |
||||||
|
#include "debug.h" |
||||||
|
#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)); |
||||||
|
} |
||||||
@ -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 new issue