@@ -0,0 +1,134 @@ | |||
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 |
@@ -0,0 +1,180 @@ | |||
#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; | |||
} |
@@ -0,0 +1,18 @@ | |||
#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 |
@@ -0,0 +1,82 @@ | |||
# 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 |
@@ -0,0 +1,19 @@ | |||
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 |
@@ -0,0 +1,47 @@ | |||
#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 |
@@ -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); | |||
} | |||
} |