ADB Protocol | |||||
============ | |||||
Resources | |||||
--------- | |||||
Apple IIgs Hardware Reference Second Edition [p80(Chapter6 p121)] | |||||
ftp://ftp.apple.asimov.net/pub/apple_II/documentation/Apple%20IIgs%20Hardware%20Reference.pdf | |||||
ADB Keycode | |||||
http://72.0.193.250/Documentation/macppc/adbkeycodes/ | |||||
http://m0115.web.fc2.com/m0115.jpg | |||||
ADB Signaling | |||||
http://kbdbabel.sourceforge.net/doc/kbd_signaling_pcxt_ps2_adb.pdf | |||||
ADB Overview & History | |||||
http://en.wikipedia.org/wiki/Apple_Desktop_Bus | |||||
Microchip Application Note: ADB device(with code for PIC16C) | |||||
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011062 | |||||
AVR ATtiny2131 ADB to PS/2 converter(Japanese) | |||||
http://hp.vector.co.jp/authors/VA000177/html/KeyBoardA5DEA5CBA5A2II.html | |||||
Pinouts | |||||
------- | |||||
Female socket from the front | |||||
4o o3 | |||||
2o o1 | |||||
== | |||||
1: Data | |||||
2: Power SW(low when press Power key) | |||||
3: Vcc(5V) | |||||
4: GND | |||||
Commands | |||||
-------- | |||||
ADB command is 1byte and consists of 4bit-address, 2bit-command | |||||
type and 2bit-register. The commands are always sent by Host. | |||||
Command format: | |||||
7 6 5 4 3 2 1 0 | |||||
| | | |------------ address | |||||
| |-------- command type | |||||
| |---- register | |||||
bits commands | |||||
------------------------------------------------------ | |||||
- - - - 0 0 0 0 Send Request(reset all devices) | |||||
A A A A 0 0 0 1 Flush(reset a device) | |||||
- - - - 0 0 1 0 Reserved | |||||
- - - - 0 0 1 1 Reserved | |||||
- - - - 0 1 - - Reserved | |||||
A A A A 1 0 R R Listen(write to a device) | |||||
A A A A 1 1 R R Talk(read from a device) | |||||
The command to read keycodes from keyboard is 0x2C which | |||||
consist of keyboard address 2 and Talk against register 0. | |||||
Address: | |||||
2: keyboard | |||||
3: mice | |||||
Registers: | |||||
0: application(keyobard/mice use to store its data.) | |||||
1: application | |||||
2: application | |||||
3: status and command | |||||
Communication | |||||
------------- | |||||
This is a minimum information for keyboard communication. | |||||
See "Resources" for detail. | |||||
Signaling: | |||||
~~~~____________~~||||||||||||__~~~~~_~~|||||||||||||||__~~~~ | |||||
|800us | |7 Command 0| | | |15-64 Data 0|Stopbit(0) | |||||
+Attention | | | +Startbit(1) | |||||
+Startbit(1) | +Tlt(140-260us) | |||||
+stopbit(0) | |||||
Bit cells: | |||||
bit0: ______~~~ | |||||
65 :35us | |||||
bit1: ___~~~~~~ | |||||
35 :65us | |||||
bit0 low time: 60-70% of bit cell(42-91us) | |||||
bit1 low time: 30-40% of bit cell(21-52us) | |||||
bit cell time: 70-130us | |||||
[from Apple IIgs Hardware Reference Second Edition] | |||||
Criterion for bit0/1: | |||||
After 55us if line is low/high then bit is 0/1. | |||||
Attention & start bit: | |||||
Host asserts low in 560-1040us then places start bit(1). | |||||
Tlt(Stop to Start): | |||||
Bus stays high in 140-260us then device places start bit(1). | |||||
Global reset: | |||||
Host asserts low in 2.8-5.2ms. All devices are forced to reset. | |||||
Send request from device(Srq): | |||||
Device can request to send at commad(Global only?) stop bit. | |||||
keep low for 300us to request. | |||||
Keyboard data(register0) | |||||
This 16bit data can contains 2 keycodes and 2 released flags. | |||||
First keycode is palced in upper nibble. When one keyocode is sent, | |||||
lower nibble is 0xFF. | |||||
Release flag is 1 when key is released. | |||||
15 14 . . . . . 8 7 6 . . . . . 0 | |||||
| |keycode1 | |keycode2 | |||||
|released(1) |released(1) | |||||
Keycodes: | |||||
Scancode consists of 7bit keycode and 1bit release flag. | |||||
Device can send two keycodes at once. If just one keycode is sent | |||||
keycode1 contains it and keyocode2 is 0xFF. | |||||
Power switch: | |||||
You can read the state from PSW line(active low) however | |||||
the switch has a special scancode 0x7F7F, so you can | |||||
also read from Data line. It uses 0xFFFF for release scancode. | |||||
END_OF_ADB |
#include <stdbool.h> | |||||
#include <util/delay.h> | |||||
#include <avr/io.h> | |||||
#include "adb.h" | |||||
static inline void data_lo(void); | |||||
static inline void data_hi(void); | |||||
static inline bool data_in(void); | |||||
#ifdef ADB_PSW_BIT | |||||
static inline void psw_lo(void); | |||||
static inline void psw_hi(void); | |||||
static inline bool psw_in(void); | |||||
#endif | |||||
static inline void attention(void); | |||||
static inline void place_bit0(void); | |||||
static inline void place_bit1(void); | |||||
static inline void send_byte(uint8_t data); | |||||
static inline bool read_bit(void); | |||||
static inline uint8_t read_byte(void); | |||||
static inline uint8_t wait_data_lo(uint8_t us); | |||||
static inline uint8_t wait_data_hi(uint8_t us); | |||||
void adb_host_init(void) | |||||
{ | |||||
data_hi(); | |||||
#ifdef ADB_PSW_BIT | |||||
psw_hi(); | |||||
#endif | |||||
} | |||||
#ifdef ADB_PSW_BIT | |||||
bool adb_host_psw(void) | |||||
{ | |||||
return psw_in(); | |||||
} | |||||
#endif | |||||
uint16_t adb_host_kbd_recv(void) | |||||
{ | |||||
uint16_t data = 0; | |||||
attention(); | |||||
send_byte(0x2C); // Addr:2, Cmd:talk(11), Reg:0(00) | |||||
place_bit0(); // Stopbit | |||||
if (!wait_data_lo(0xFF)) // Stop to Start(140-260us) | |||||
return 0; // No data to send | |||||
if (!read_bit()) // Startbit(1) | |||||
return -2; | |||||
data = read_byte(); | |||||
data = (data<<8) | read_byte(); | |||||
if (read_bit()) // Stopbit(0) | |||||
return -3; | |||||
return data; | |||||
} | |||||
static inline void data_lo() | |||||
{ | |||||
ADB_DDR |= (1<<ADB_DATA_BIT); | |||||
ADB_PORT &= ~(1<<ADB_DATA_BIT); | |||||
} | |||||
static inline void data_hi() | |||||
{ | |||||
ADB_PORT |= (1<<ADB_DATA_BIT); | |||||
ADB_DDR &= ~(1<<ADB_DATA_BIT); | |||||
} | |||||
static inline bool data_in() | |||||
{ | |||||
ADB_PORT |= (1<<ADB_DATA_BIT); | |||||
ADB_DDR &= ~(1<<ADB_DATA_BIT); | |||||
return ADB_PIN&(1<<ADB_DATA_BIT); | |||||
} | |||||
#ifdef ADB_PSW_BIT | |||||
static inline void psw_lo() | |||||
{ | |||||
ADB_DDR |= (1<<ADB_PSW_BIT); | |||||
ADB_PORT &= ~(1<<ADB_PSW_BIT); | |||||
} | |||||
static inline void psw_hi() | |||||
{ | |||||
ADB_PORT |= (1<<ADB_PSW_BIT); | |||||
ADB_DDR &= ~(1<<ADB_PSW_BIT); | |||||
} | |||||
static inline bool psw_in() | |||||
{ | |||||
ADB_PORT |= (1<<ADB_PSW_BIT); | |||||
ADB_DDR &= ~(1<<ADB_PSW_BIT); | |||||
return ADB_PIN&(1<<ADB_PSW_BIT); | |||||
} | |||||
#endif | |||||
static inline void attention(void) | |||||
{ | |||||
data_lo(); | |||||
_delay_us(700); | |||||
place_bit1(); | |||||
} | |||||
static inline void place_bit0(void) | |||||
{ | |||||
data_lo(); | |||||
_delay_us(65); | |||||
data_hi(); | |||||
_delay_us(35); | |||||
} | |||||
static inline void place_bit1(void) | |||||
{ | |||||
data_lo(); | |||||
_delay_us(35); | |||||
data_hi(); | |||||
_delay_us(65); | |||||
} | |||||
static inline void send_byte(uint8_t data) | |||||
{ | |||||
for (int i = 0; i < 8; i++) { | |||||
if (data&(0x80>>i)) | |||||
place_bit1(); | |||||
else | |||||
place_bit0(); | |||||
} | |||||
} | |||||
static inline bool read_bit(void) | |||||
{ | |||||
// ADB Bit Cells | |||||
// | |||||
// bit0: ______~~~ | |||||
// 65 :35us | |||||
// | |||||
// bit1: ___~~~~~~ | |||||
// 35 :65us | |||||
// | |||||
// bit0 low time: 60-70% of bit cell(42-91us) | |||||
// bit1 low time: 30-40% of bit cell(21-52us) | |||||
// bit cell time: 70-130us | |||||
// [from Apple IIgs Hardware Reference Second Edition] | |||||
// | |||||
// After 55us if data line is low/high then bit is 0/1. | |||||
// Too simple to rely on? | |||||
bool bit; | |||||
wait_data_lo(75); // wait the beginning of bit cell | |||||
_delay_us(55); | |||||
bit = data_in(); | |||||
wait_data_hi(36); // wait high part of bit cell | |||||
return bit; | |||||
} | |||||
static inline uint8_t read_byte(void) | |||||
{ | |||||
uint8_t data = 0; | |||||
for (int i = 0; i < 8; i++) { | |||||
data <<= 1; | |||||
if (read_bit()) | |||||
data = data | 1; | |||||
} | |||||
return data; | |||||
} | |||||
static inline uint8_t wait_data_lo(uint8_t us) | |||||
{ | |||||
while (data_in() && us) { | |||||
_delay_us(1); | |||||
us--; | |||||
} | |||||
return us; | |||||
} | |||||
static inline uint8_t wait_data_hi(uint8_t us) | |||||
{ | |||||
while (!data_in() && us) { | |||||
_delay_us(1); | |||||
us--; | |||||
} | |||||
return us; | |||||
} |
#ifndef ADB_H | |||||
#define ADB_H | |||||
#include <stdbool.h> | |||||
#if !(defined(ADB_PORT) && \ | |||||
defined(ADB_PIN) && \ | |||||
defined(ADB_DDR) && \ | |||||
defined(ADB_DATA_BIT)) | |||||
# error "ADB port setting is required in config.h" | |||||
#endif | |||||
// ADB host | |||||
void adb_host_init(void); | |||||
bool adb_host_psw(void); | |||||
uint16_t adb_host_kbd_recv(void); | |||||
#endif |
# Hey Emacs, this is a -*- makefile -*- | |||||
#---------------------------------------------------------------------------- | |||||
# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al. | |||||
# | |||||
# Released to the Public Domain | |||||
# | |||||
# Additional material for this makefile was written by: | |||||
# Peter Fleury | |||||
# Tim Henigan | |||||
# Colin O'Flynn | |||||
# Reiner Patommel | |||||
# Markus Pfaff | |||||
# Sander Pool | |||||
# Frederik Rouleau | |||||
# Carlos Lamas | |||||
# | |||||
#---------------------------------------------------------------------------- | |||||
# On command line: | |||||
# | |||||
# make all = Make software. | |||||
# | |||||
# make clean = Clean out built project files. | |||||
# | |||||
# make coff = Convert ELF to AVR COFF. | |||||
# | |||||
# make extcoff = Convert ELF to AVR Extended COFF. | |||||
# | |||||
# make program = Download the hex file to the device, using avrdude. | |||||
# Please customize the avrdude settings below first! | |||||
# | |||||
# make debug = Start either simulavr or avarice as specified for debugging, | |||||
# with avr-gdb or avr-insight as the front end for debugging. | |||||
# | |||||
# make filename.s = Just compile filename.c into the assembler code only. | |||||
# | |||||
# make filename.i = Create a preprocessed source file for use in submitting | |||||
# bug reports to the GCC project. | |||||
# | |||||
# To rebuild project do "make clean" then "make all". | |||||
#---------------------------------------------------------------------------- | |||||
# Target file name (without extension). | |||||
TARGET = tmk_adb | |||||
# Directory common source filess exist | |||||
COMMON_DIR = .. | |||||
# Directory keyboard dependent files exist | |||||
TARGET_DIR = . | |||||
# keyboard dependent files | |||||
TARGET_SRC = keymap.c \ | |||||
matrix.c \ | |||||
adb.c | |||||
# MCU name, you MUST set this to match the board you are using | |||||
# type "make clean" after changing this, so all files will be rebuilt | |||||
#MCU = at90usb162 # Teensy 1.0 | |||||
MCU = atmega32u4 # Teensy 2.0 | |||||
#MCU = at90usb646 # Teensy++ 1.0 | |||||
#MCU = at90usb1286 # Teensy++ 2.0 | |||||
# Processor frequency. | |||||
# Normally the first thing your program should do is set the clock prescaler, | |||||
# so your program will run at the correct speed. You should also set this | |||||
# variable to same clock speed. The _delay_ms() macro uses this, and many | |||||
# examples use this variable to calculate timings. Do not add a "UL" here. | |||||
F_CPU = 16000000 | |||||
# Build Options | |||||
# comment out to disable the options. | |||||
# | |||||
MOUSEKEY_ENABLE = yes # Mouse keys | |||||
#PS2_MOUSE_ENABLE = yes # PS/2 mouse(TrackPoint) support | |||||
USB_EXTRA_ENABLE = yes # Enhanced feature for Windows(Audio control and System control) | |||||
#USB_NKRO_ENABLE = yes # USB Nkey Rollover | |||||
include $(COMMON_DIR)/Makefile.common |
ADB to USB keyboard converter | |||||
============================= | |||||
This firmware converts ADB keyboard protocol to USB. | |||||
Build | |||||
----- | |||||
0. Connect ADB keyboard to Teensy by 3 lines(Vcc, GND, Data). | |||||
PSW line is optional. See ADB.txt for details. | |||||
1. Define following macros for ADB connection in config.h: | |||||
ADB_PORT | |||||
ADB_PIN | |||||
ADB_DDR | |||||
ADB_DATA_BIT | |||||
ADB_PSW_BIT | |||||
2. make | |||||
3. program Teensy. | |||||
EOF |
#ifndef CONFIG_H | |||||
#define CONFIG_H | |||||
/* 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 |
/* | |||||
* 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)); | |||||
} |
/* | |||||
* 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); | |||||
} | |||||
} |