@ -1,423 +0,0 @@ | |||
/* | |||
Copyright 2017 Danny Nguyen <danny@keeb.io> | |||
This program is free software: you can redistribute it and/or modify | |||
it under the terms of the GNU General Public License as published by | |||
the Free Software Foundation, either version 2 of the License, or | |||
(at your option) any later version. | |||
This program is distributed in the hope that it will be useful, | |||
but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
GNU General Public License for more details. | |||
You should have received a copy of the GNU General Public License | |||
along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
*/ | |||
/* | |||
* scan matrix | |||
*/ | |||
#include <stdint.h> | |||
#include <stdbool.h> | |||
#include <avr/io.h> | |||
#include "wait.h" | |||
#include "print.h" | |||
#include "debug.h" | |||
#include "util.h" | |||
#include "matrix.h" | |||
#include "split_util.h" | |||
#include "pro_micro.h" | |||
#include "config.h" | |||
#include "timer.h" | |||
#ifdef BACKLIGHT_ENABLE | |||
#include "backlight.h" | |||
extern backlight_config_t backlight_config; | |||
#endif | |||
#include "serial.h" | |||
#ifndef DEBOUNCE | |||
# define DEBOUNCE 5 | |||
#endif | |||
#if (DEBOUNCE > 0) | |||
static uint16_t debouncing_time; | |||
static bool debouncing = false; | |||
#endif | |||
#if (MATRIX_COLS <= 8) | |||
# define print_matrix_header() print("\nr/c 01234567\n") | |||
# define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row)) | |||
# define matrix_bitpop(i) bitpop(matrix[i]) | |||
# define ROW_SHIFTER ((uint8_t)1) | |||
#else | |||
# error "Currently only supports 8 COLS" | |||
#endif | |||
static matrix_row_t matrix_debouncing[MATRIX_ROWS]; | |||
#define ERROR_DISCONNECT_COUNT 5 | |||
#define SERIAL_LED_ADDR 0x00 | |||
#define ROWS_PER_HAND (MATRIX_ROWS/2) | |||
static uint8_t error_count = 0; | |||
static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; | |||
static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; | |||
/* matrix state(1:on, 0:off) */ | |||
static matrix_row_t matrix[MATRIX_ROWS]; | |||
static matrix_row_t matrix_debouncing[MATRIX_ROWS]; | |||
#if (DIODE_DIRECTION == COL2ROW) | |||
static void init_cols(void); | |||
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row); | |||
static void unselect_rows(void); | |||
static void select_row(uint8_t row); | |||
static void unselect_row(uint8_t row); | |||
#elif (DIODE_DIRECTION == ROW2COL) | |||
static void init_rows(void); | |||
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col); | |||
static void unselect_cols(void); | |||
static void unselect_col(uint8_t col); | |||
static void select_col(uint8_t col); | |||
#endif | |||
__attribute__ ((weak)) | |||
void matrix_init_kb(void) { | |||
matrix_init_user(); | |||
} | |||
__attribute__ ((weak)) | |||
void matrix_scan_kb(void) { | |||
matrix_scan_user(); | |||
} | |||
__attribute__ ((weak)) | |||
void matrix_init_user(void) { | |||
} | |||
__attribute__ ((weak)) | |||
void matrix_scan_user(void) { | |||
} | |||
inline | |||
uint8_t matrix_rows(void) | |||
{ | |||
return MATRIX_ROWS; | |||
} | |||
inline | |||
uint8_t matrix_cols(void) | |||
{ | |||
return MATRIX_COLS; | |||
} | |||
void matrix_init(void) | |||
{ | |||
debug_enable = true; | |||
debug_matrix = true; | |||
debug_mouse = true; | |||
// initialize row and col | |||
unselect_rows(); | |||
init_cols(); | |||
TX_RX_LED_INIT; | |||
// initialize matrix state: all keys off | |||
for (uint8_t i=0; i < MATRIX_ROWS; i++) { | |||
matrix[i] = 0; | |||
matrix_debouncing[i] = 0; | |||
} | |||
matrix_init_quantum(); | |||
} | |||
uint8_t _matrix_scan(void) | |||
{ | |||
int offset = isLeftHand ? 0 : (ROWS_PER_HAND); | |||
#if (DIODE_DIRECTION == COL2ROW) | |||
// Set row, read cols | |||
for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) { | |||
# if (DEBOUNCE > 0) | |||
bool matrix_changed = read_cols_on_row(matrix_debouncing+offset, current_row); | |||
if (matrix_changed) { | |||
debouncing = true; | |||
debouncing_time = timer_read(); | |||
} | |||
# else | |||
read_cols_on_row(matrix+offset, current_row); | |||
# endif | |||
} | |||
#elif (DIODE_DIRECTION == ROW2COL) | |||
// Set col, read rows | |||
for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) { | |||
# if (DEBOUNCE > 0) | |||
bool matrix_changed = read_rows_on_col(matrix_debouncing+offset, current_col); | |||
if (matrix_changed) { | |||
debouncing = true; | |||
debouncing_time = timer_read(); | |||
} | |||
# else | |||
read_rows_on_col(matrix+offset, current_col); | |||
# endif | |||
} | |||
#endif | |||
# if (DEBOUNCE > 0) | |||
if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCE)) { | |||
for (uint8_t i = 0; i < ROWS_PER_HAND; i++) { | |||
matrix[i+offset] = matrix_debouncing[i+offset]; | |||
} | |||
debouncing = false; | |||
} | |||
# endif | |||
return 1; | |||
} | |||
int serial_transaction(void) { | |||
int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; | |||
if (serial_update_buffers()) { | |||
return 1; | |||
} | |||
for (int i = 0; i < ROWS_PER_HAND; ++i) { | |||
matrix[slaveOffset+i] = serial_slave_buffer[i]; | |||
} | |||
#ifdef BACKLIGHT_ENABLE | |||
// Write backlight level for slave to read | |||
serial_master_buffer[SERIAL_LED_ADDR] = backlight_config.enable ? backlight_config.level : 0; | |||
#endif | |||
return 0; | |||
} | |||
uint8_t matrix_scan(void) | |||
{ | |||
uint8_t ret = _matrix_scan(); | |||
if( serial_transaction() ) { | |||
// turn on the indicator led when halves are disconnected | |||
TXLED1; | |||
error_count++; | |||
if (error_count > ERROR_DISCONNECT_COUNT) { | |||
// reset other half if disconnected | |||
int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; | |||
for (int i = 0; i < ROWS_PER_HAND; ++i) { | |||
matrix[slaveOffset+i] = 0; | |||
} | |||
} | |||
} else { | |||
// turn off the indicator led on no error | |||
TXLED0; | |||
error_count = 0; | |||
} | |||
matrix_scan_quantum(); | |||
return ret; | |||
} | |||
void matrix_slave_scan(void) { | |||
_matrix_scan(); | |||
int offset = (isLeftHand) ? 0 : ROWS_PER_HAND; | |||
for (int i = 0; i < ROWS_PER_HAND; ++i) { | |||
serial_slave_buffer[i] = matrix[offset+i]; | |||
} | |||
#ifdef BACKLIGHT_ENABLE | |||
// Read backlight level sent from master and update level on slave | |||
backlight_set(serial_master_buffer[SERIAL_LED_ADDR]); | |||
#endif | |||
} | |||
bool matrix_is_modified(void) | |||
{ | |||
if (debouncing) return false; | |||
return true; | |||
} | |||
inline | |||
bool matrix_is_on(uint8_t row, uint8_t col) | |||
{ | |||
return (matrix[row] & ((matrix_row_t)1<<col)); | |||
} | |||
inline | |||
matrix_row_t matrix_get_row(uint8_t row) | |||
{ | |||
return matrix[row]; | |||
} | |||
void matrix_print(void) | |||
{ | |||
print("\nr/c 0123456789ABCDEF\n"); | |||
for (uint8_t row = 0; row < MATRIX_ROWS; row++) { | |||
phex(row); print(": "); | |||
pbin_reverse16(matrix_get_row(row)); | |||
print("\n"); | |||
} | |||
} | |||
uint8_t matrix_key_count(void) | |||
{ | |||
uint8_t count = 0; | |||
for (uint8_t i = 0; i < MATRIX_ROWS; i++) { | |||
count += bitpop16(matrix[i]); | |||
} | |||
return count; | |||
} | |||
#if (DIODE_DIRECTION == COL2ROW) | |||
static void init_cols(void) | |||
{ | |||
for(uint8_t x = 0; x < MATRIX_COLS; x++) { | |||
uint8_t pin = col_pins[x]; | |||
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN | |||
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI | |||
} | |||
} | |||
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) | |||
{ | |||
// Store last value of row prior to reading | |||
matrix_row_t last_row_value = current_matrix[current_row]; | |||
// Clear data in matrix row | |||
current_matrix[current_row] = 0; | |||
// Select row and wait for row selecton to stabilize | |||
select_row(current_row); | |||
wait_us(30); | |||
// For each col... | |||
for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) { | |||
// Select the col pin to read (active low) | |||
uint8_t pin = col_pins[col_index]; | |||
uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF)); | |||
// Populate the matrix row with the state of the col pin | |||
current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index); | |||
} | |||
// Unselect row | |||
unselect_row(current_row); | |||
return (last_row_value != current_matrix[current_row]); | |||
} | |||
static void select_row(uint8_t row) | |||
{ | |||
uint8_t pin = row_pins[row]; | |||
_SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT | |||
_SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW | |||
} | |||
static void unselect_row(uint8_t row) | |||
{ | |||
uint8_t pin = row_pins[row]; | |||
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN | |||
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI | |||
} | |||
static void unselect_rows(void) | |||
{ | |||
for(uint8_t x = 0; x < ROWS_PER_HAND; x++) { | |||
uint8_t pin = row_pins[x]; | |||
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN | |||
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI | |||
} | |||
} | |||
#elif (DIODE_DIRECTION == ROW2COL) | |||
static void init_rows(void) | |||
{ | |||
for(uint8_t x = 0; x < ROWS_PER_HAND; x++) { | |||
uint8_t pin = row_pins[x]; | |||
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN | |||
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI | |||
} | |||
} | |||
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) | |||
{ | |||
bool matrix_changed = false; | |||
// Select col and wait for col selecton to stabilize | |||
select_col(current_col); | |||
wait_us(30); | |||
// For each row... | |||
for(uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++) | |||
{ | |||
// Store last value of row prior to reading | |||
matrix_row_t last_row_value = current_matrix[row_index]; | |||
// Check row pin state | |||
if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0) | |||
{ | |||
// Pin LO, set col bit | |||
current_matrix[row_index] |= (ROW_SHIFTER << current_col); | |||
} | |||
else | |||
{ | |||
// Pin HI, clear col bit | |||
current_matrix[row_index] &= ~(ROW_SHIFTER << current_col); | |||
} | |||
// Determine if the matrix changed state | |||
if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) | |||
{ | |||
matrix_changed = true; | |||
} | |||
} | |||
// Unselect col | |||
unselect_col(current_col); | |||
return matrix_changed; | |||
} | |||
static void select_col(uint8_t col) | |||
{ | |||
uint8_t pin = col_pins[col]; | |||
_SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT | |||
_SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW | |||
} | |||
static void unselect_col(uint8_t col) | |||
{ | |||
uint8_t pin = col_pins[col]; | |||
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN | |||
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI | |||
} | |||
static void unselect_cols(void) | |||
{ | |||
for(uint8_t x = 0; x < MATRIX_COLS; x++) { | |||
uint8_t pin = col_pins[x]; | |||
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN | |||
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI | |||
} | |||
} | |||
#endif |
@ -1,22 +1 @@ | |||
#include "rev1.h" | |||
#ifdef SSD1306OLED | |||
void led_set_kb(uint8_t usb_led) { | |||
// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here | |||
led_set_user(usb_led); | |||
} | |||
#endif | |||
void matrix_init_kb(void) { | |||
// // green led on | |||
// DDRD |= (1<<5); | |||
// PORTD &= ~(1<<5); | |||
// // orange led on | |||
// DDRB |= (1<<0); | |||
// PORTB &= ~(1<<0); | |||
matrix_init_user(); | |||
}; | |||
@ -0,0 +1,3 @@ | |||
# Revision Specific Build Options | |||
# change yes to no to disable | |||
# |
@ -1,589 +0,0 @@ | |||
/* | |||
* WARNING: be careful changing this code, it is very timing dependent | |||
* | |||
* 2018-10-28 checked | |||
* avr-gcc 4.9.2 | |||
* avr-gcc 5.4.0 | |||
* avr-gcc 7.3.0 | |||
*/ | |||
#ifndef F_CPU | |||
#define F_CPU 16000000 | |||
#endif | |||
#include <avr/io.h> | |||
#include <avr/interrupt.h> | |||
#include <util/delay.h> | |||
#include <stddef.h> | |||
#include <stdbool.h> | |||
#include "serial.h" | |||
#ifdef SOFT_SERIAL_PIN | |||
#ifdef __AVR_ATmega32U4__ | |||
// if using ATmega32U4 I2C, can not use PD0 and PD1 in soft serial. | |||
#ifdef USE_I2C | |||
#if SOFT_SERIAL_PIN == D0 || SOFT_SERIAL_PIN == D1 | |||
#error Using ATmega32U4 I2C, so can not use PD0, PD1 | |||
#endif | |||
#endif | |||
#if SOFT_SERIAL_PIN >= D0 && SOFT_SERIAL_PIN <= D3 | |||
#define SERIAL_PIN_DDR DDRD | |||
#define SERIAL_PIN_PORT PORTD | |||
#define SERIAL_PIN_INPUT PIND | |||
#if SOFT_SERIAL_PIN == D0 | |||
#define SERIAL_PIN_MASK _BV(PD0) | |||
#define EIMSK_BIT _BV(INT0) | |||
#define EICRx_BIT (~(_BV(ISC00) | _BV(ISC01))) | |||
#define SERIAL_PIN_INTERRUPT INT0_vect | |||
#elif SOFT_SERIAL_PIN == D1 | |||
#define SERIAL_PIN_MASK _BV(PD1) | |||
#define EIMSK_BIT _BV(INT1) | |||
#define EICRx_BIT (~(_BV(ISC10) | _BV(ISC11))) | |||
#define SERIAL_PIN_INTERRUPT INT1_vect | |||
#elif SOFT_SERIAL_PIN == D2 | |||
#define SERIAL_PIN_MASK _BV(PD2) | |||
#define EIMSK_BIT _BV(INT2) | |||
#define EICRx_BIT (~(_BV(ISC20) | _BV(ISC21))) | |||
#define SERIAL_PIN_INTERRUPT INT2_vect | |||
#elif SOFT_SERIAL_PIN == D3 | |||
#define SERIAL_PIN_MASK _BV(PD3) | |||
#define EIMSK_BIT _BV(INT3) | |||
#define EICRx_BIT (~(_BV(ISC30) | _BV(ISC31))) | |||
#define SERIAL_PIN_INTERRUPT INT3_vect | |||
#endif | |||
#elif SOFT_SERIAL_PIN == E6 | |||
#define SERIAL_PIN_DDR DDRE | |||
#define SERIAL_PIN_PORT PORTE | |||
#define SERIAL_PIN_INPUT PINE | |||
#define SERIAL_PIN_MASK _BV(PE6) | |||
#define EIMSK_BIT _BV(INT6) | |||
#define EICRx_BIT (~(_BV(ISC60) | _BV(ISC61))) | |||
#define SERIAL_PIN_INTERRUPT INT6_vect | |||
#else | |||
#error invalid SOFT_SERIAL_PIN value | |||
#endif | |||
#else | |||
#error serial.c now support ATmega32U4 only | |||
#endif | |||
//////////////// for backward compatibility //////////////////////////////// | |||
#if !defined(SERIAL_USE_SINGLE_TRANSACTION) && !defined(SERIAL_USE_MULTI_TRANSACTION) | |||
/* --- USE OLD API (compatible with let's split serial.c) */ | |||
#if SERIAL_SLAVE_BUFFER_LENGTH > 0 | |||
uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0}; | |||
#endif | |||
#if SERIAL_MASTER_BUFFER_LENGTH > 0 | |||
uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0}; | |||
#endif | |||
uint8_t volatile status0 = 0; | |||
SSTD_t transactions[] = { | |||
{ (uint8_t *)&status0, | |||
#if SERIAL_MASTER_BUFFER_LENGTH > 0 | |||
sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer, | |||
#else | |||
0, (uint8_t *)NULL, | |||
#endif | |||
#if SERIAL_SLAVE_BUFFER_LENGTH > 0 | |||
sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer | |||
#else | |||
0, (uint8_t *)NULL, | |||
#endif | |||
} | |||
}; | |||
void serial_master_init(void) | |||
{ soft_serial_initiator_init(transactions, TID_LIMIT(transactions)); } | |||
void serial_slave_init(void) | |||
{ soft_serial_target_init(transactions, TID_LIMIT(transactions)); } | |||
// 0 => no error | |||
// 1 => slave did not respond | |||
// 2 => checksum error | |||
int serial_update_buffers() | |||
{ | |||
int result; | |||
result = soft_serial_transaction(); | |||
return result; | |||
} | |||
#endif // end of OLD API (compatible with let's split serial.c) | |||
//////////////////////////////////////////////////////////////////////////// | |||
#define ALWAYS_INLINE __attribute__((always_inline)) | |||
#define NO_INLINE __attribute__((noinline)) | |||
#define _delay_sub_us(x) __builtin_avr_delay_cycles(x) | |||
// parity check | |||
#define ODD_PARITY 1 | |||
#define EVEN_PARITY 0 | |||
#define PARITY EVEN_PARITY | |||
#ifdef SERIAL_DELAY | |||
// custom setup in config.h | |||
// #define TID_SEND_ADJUST 2 | |||
// #define SERIAL_DELAY 6 // micro sec | |||
// #define READ_WRITE_START_ADJUST 30 // cycles | |||
// #define READ_WRITE_WIDTH_ADJUST 8 // cycles | |||
#else | |||
// ============ Standard setups ============ | |||
#ifndef SELECT_SOFT_SERIAL_SPEED | |||
#define SELECT_SOFT_SERIAL_SPEED 1 | |||
// 0: about 189kbps | |||
// 1: about 137kbps (default) | |||
// 2: about 75kbps | |||
// 3: about 39kbps | |||
// 4: about 26kbps | |||
// 5: about 20kbps | |||
#endif | |||
#if __GNUC__ < 6 | |||
#define TID_SEND_ADJUST 14 | |||
#else | |||
#define TID_SEND_ADJUST 2 | |||
#endif | |||
#if SELECT_SOFT_SERIAL_SPEED == 0 | |||
// Very High speed | |||
#define SERIAL_DELAY 4 // micro sec | |||
#if __GNUC__ < 6 | |||
#define READ_WRITE_START_ADJUST 33 // cycles | |||
#define READ_WRITE_WIDTH_ADJUST 3 // cycles | |||
#else | |||
#define READ_WRITE_START_ADJUST 34 // cycles | |||
#define READ_WRITE_WIDTH_ADJUST 7 // cycles | |||
#endif | |||
#elif SELECT_SOFT_SERIAL_SPEED == 1 | |||
// High speed | |||
#define SERIAL_DELAY 6 // micro sec | |||
#if __GNUC__ < 6 | |||
#define READ_WRITE_START_ADJUST 30 // cycles | |||
#define READ_WRITE_WIDTH_ADJUST 3 // cycles | |||
#else | |||
#define READ_WRITE_START_ADJUST 33 // cycles | |||
#define READ_WRITE_WIDTH_ADJUST 7 // cycles | |||
#endif | |||
#elif SELECT_SOFT_SERIAL_SPEED == 2 | |||
// Middle speed | |||
#define SERIAL_DELAY 12 // micro sec | |||
#define READ_WRITE_START_ADJUST 30 // cycles | |||
#if __GNUC__ < 6 | |||
#define READ_WRITE_WIDTH_ADJUST 3 // cycles | |||
#else | |||
#define READ_WRITE_WIDTH_ADJUST 7 // cycles | |||
#endif | |||
#elif SELECT_SOFT_SERIAL_SPEED == 3 | |||
// Low speed | |||
#define SERIAL_DELAY 24 // micro sec | |||
#define READ_WRITE_START_ADJUST 30 // cycles | |||
#if __GNUC__ < 6 | |||
#define READ_WRITE_WIDTH_ADJUST 3 // cycles | |||
#else | |||
#define READ_WRITE_WIDTH_ADJUST 7 // cycles | |||
#endif | |||
#elif SELECT_SOFT_SERIAL_SPEED == 4 | |||
// Very Low speed | |||
#define SERIAL_DELAY 36 // micro sec | |||
#define READ_WRITE_START_ADJUST 30 // cycles | |||
#if __GNUC__ < 6 | |||
#define READ_WRITE_WIDTH_ADJUST 3 // cycles | |||
#else | |||
#define READ_WRITE_WIDTH_ADJUST 7 // cycles | |||
#endif | |||
#elif SELECT_SOFT_SERIAL_SPEED == 5 | |||
// Ultra Low speed | |||
#define SERIAL_DELAY 48 // micro sec | |||
#define READ_WRITE_START_ADJUST 30 // cycles | |||
#if __GNUC__ < 6 | |||
#define READ_WRITE_WIDTH_ADJUST 3 // cycles | |||
#else | |||
#define READ_WRITE_WIDTH_ADJUST 7 // cycles | |||
#endif | |||
#else | |||
#error invalid SELECT_SOFT_SERIAL_SPEED value | |||
#endif /* SELECT_SOFT_SERIAL_SPEED */ | |||
#endif /* SERIAL_DELAY */ | |||
#define SERIAL_DELAY_HALF1 (SERIAL_DELAY/2) | |||
#define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY/2) | |||
#define SLAVE_INT_WIDTH_US 1 | |||
#ifndef SERIAL_USE_MULTI_TRANSACTION | |||
#define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY | |||
#else | |||
#define SLAVE_INT_ACK_WIDTH_UNIT 2 | |||
#define SLAVE_INT_ACK_WIDTH 4 | |||
#endif | |||
static SSTD_t *Transaction_table = NULL; | |||
static uint8_t Transaction_table_size = 0; | |||
inline static void serial_delay(void) ALWAYS_INLINE; | |||
inline static | |||
void serial_delay(void) { | |||
_delay_us(SERIAL_DELAY); | |||
} | |||
inline static void serial_delay_half1(void) ALWAYS_INLINE; | |||
inline static | |||
void serial_delay_half1(void) { | |||
_delay_us(SERIAL_DELAY_HALF1); | |||
} | |||
inline static void serial_delay_half2(void) ALWAYS_INLINE; | |||
inline static | |||
void serial_delay_half2(void) { | |||
_delay_us(SERIAL_DELAY_HALF2); | |||
} | |||
inline static void serial_output(void) ALWAYS_INLINE; | |||
inline static | |||
void serial_output(void) { | |||
SERIAL_PIN_DDR |= SERIAL_PIN_MASK; | |||
} | |||
// make the serial pin an input with pull-up resistor | |||
inline static void serial_input_with_pullup(void) ALWAYS_INLINE; | |||
inline static | |||
void serial_input_with_pullup(void) { | |||
SERIAL_PIN_DDR &= ~SERIAL_PIN_MASK; | |||
SERIAL_PIN_PORT |= SERIAL_PIN_MASK; | |||
} | |||
inline static uint8_t serial_read_pin(void) ALWAYS_INLINE; | |||
inline static | |||
uint8_t serial_read_pin(void) { | |||
return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK); | |||
} | |||
inline static void serial_low(void) ALWAYS_INLINE; | |||
inline static | |||
void serial_low(void) { | |||
SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK; | |||
} | |||
inline static void serial_high(void) ALWAYS_INLINE; | |||
inline static | |||
void serial_high(void) { | |||
SERIAL_PIN_PORT |= SERIAL_PIN_MASK; | |||
} | |||
void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size) | |||
{ | |||
Transaction_table = sstd_table; | |||
Transaction_table_size = (uint8_t)sstd_table_size; | |||
serial_output(); | |||
serial_high(); | |||
} | |||
void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size) | |||
{ | |||
Transaction_table = sstd_table; | |||
Transaction_table_size = (uint8_t)sstd_table_size; | |||
serial_input_with_pullup(); | |||
// Enable INT0-INT3,INT6 | |||
EIMSK |= EIMSK_BIT; | |||
#if SERIAL_PIN_MASK == _BV(PE6) | |||
// Trigger on falling edge of INT6 | |||
EICRB &= EICRx_BIT; | |||
#else | |||
// Trigger on falling edge of INT0-INT3 | |||
EICRA &= EICRx_BIT; | |||
#endif | |||
} | |||
// Used by the sender to synchronize timing with the reciver. | |||
static void sync_recv(void) NO_INLINE; | |||
static | |||
void sync_recv(void) { | |||
for (uint8_t i = 0; i < SERIAL_DELAY*5 && serial_read_pin(); i++ ) { | |||
} | |||
// This shouldn't hang if the target disconnects because the | |||
// serial line will float to high if the target does disconnect. | |||
while (!serial_read_pin()); | |||
} | |||
// Used by the reciver to send a synchronization signal to the sender. | |||
static void sync_send(void) NO_INLINE; | |||
static | |||
void sync_send(void) { | |||
serial_low(); | |||
serial_delay(); | |||
serial_high(); | |||
} | |||
// Reads a byte from the serial line | |||
static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) NO_INLINE; | |||
static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) { | |||
uint8_t byte, i, p, pb; | |||
_delay_sub_us(READ_WRITE_START_ADJUST); | |||
for( i = 0, byte = 0, p = PARITY; i < bit; i++ ) { | |||
serial_delay_half1(); // read the middle of pulses | |||
if( serial_read_pin() ) { | |||
byte = (byte << 1) | 1; p ^= 1; | |||
} else { | |||
byte = (byte << 1) | 0; p ^= 0; | |||
} | |||
_delay_sub_us(READ_WRITE_WIDTH_ADJUST); | |||
serial_delay_half2(); | |||
} | |||
/* recive parity bit */ | |||
serial_delay_half1(); // read the middle of pulses | |||
pb = serial_read_pin(); | |||
_delay_sub_us(READ_WRITE_WIDTH_ADJUST); | |||
serial_delay_half2(); | |||
*pterrcount += (p != pb)? 1 : 0; | |||
return byte; | |||
} | |||
// Sends a byte with MSB ordering | |||
void serial_write_chunk(uint8_t data, uint8_t bit) NO_INLINE; | |||
void serial_write_chunk(uint8_t data, uint8_t bit) { | |||
uint8_t b, p; | |||
for( p = PARITY, b = 1<<(bit-1); b ; b >>= 1) { | |||
if(data & b) { | |||
serial_high(); p ^= 1; | |||
} else { | |||
serial_low(); p ^= 0; | |||
} | |||
serial_delay(); | |||
} | |||
/* send parity bit */ | |||
if(p & 1) { serial_high(); } | |||
else { serial_low(); } | |||
serial_delay(); | |||
serial_low(); // sync_send() / senc_recv() need raise edge | |||
} | |||
static void serial_send_packet(uint8_t *buffer, uint8_t size) NO_INLINE; | |||
static | |||
void serial_send_packet(uint8_t *buffer, uint8_t size) { | |||
for (uint8_t i = 0; i < size; ++i) { | |||
uint8_t data; | |||
data = buffer[i]; | |||
sync_send(); | |||
serial_write_chunk(data,8); | |||
} | |||
} | |||
static uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) NO_INLINE; | |||
static | |||
uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) { | |||
uint8_t pecount = 0; | |||
for (uint8_t i = 0; i < size; ++i) { | |||
uint8_t data; | |||
sync_recv(); | |||
data = serial_read_chunk(&pecount, 8); | |||
buffer[i] = data; | |||
} | |||
return pecount == 0; | |||
} | |||
inline static | |||
void change_sender2reciver(void) { | |||
sync_send(); //0 | |||
serial_delay_half1(); //1 | |||
serial_low(); //2 | |||
serial_input_with_pullup(); //2 | |||
serial_delay_half1(); //3 | |||
} | |||
inline static | |||
void change_reciver2sender(void) { | |||
sync_recv(); //0 | |||
serial_delay(); //1 | |||
serial_low(); //3 | |||
serial_output(); //3 | |||
serial_delay_half1(); //4 | |||
} | |||
static inline uint8_t nibble_bits_count(uint8_t bits) | |||
{ | |||
bits = (bits & 0x5) + (bits >> 1 & 0x5); | |||
bits = (bits & 0x3) + (bits >> 2 & 0x3); | |||
return bits; | |||
} | |||
// interrupt handle to be used by the target device | |||
ISR(SERIAL_PIN_INTERRUPT) { | |||
#ifndef SERIAL_USE_MULTI_TRANSACTION | |||
serial_low(); | |||
serial_output(); | |||
SSTD_t *trans = Transaction_table; | |||
#else | |||
// recive transaction table index | |||
uint8_t tid, bits; | |||
uint8_t pecount = 0; | |||
sync_recv(); | |||
bits = serial_read_chunk(&pecount,7); | |||
tid = bits>>3; | |||
bits = (bits&7) != nibble_bits_count(tid); | |||
if( bits || pecount> 0 || tid > Transaction_table_size ) { | |||
return; | |||
} | |||
serial_delay_half1(); | |||
serial_high(); // response step1 low->high | |||
serial_output(); | |||
_delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT*SLAVE_INT_ACK_WIDTH); | |||
SSTD_t *trans = &Transaction_table[tid]; | |||
serial_low(); // response step2 ack high->low | |||
#endif | |||
// target send phase | |||
if( trans->target2initiator_buffer_size > 0 ) | |||
serial_send_packet((uint8_t *)trans->target2initiator_buffer, | |||
trans->target2initiator_buffer_size); | |||
// target switch to input | |||
change_sender2reciver(); | |||
// target recive phase | |||
if( trans->initiator2target_buffer_size > 0 ) { | |||
if (serial_recive_packet((uint8_t *)trans->initiator2target_buffer, | |||
trans->initiator2target_buffer_size) ) { | |||
*trans->status = TRANSACTION_ACCEPTED; | |||
} else { | |||
*trans->status = TRANSACTION_DATA_ERROR; | |||
} | |||
} else { | |||
*trans->status = TRANSACTION_ACCEPTED; | |||
} | |||
sync_recv(); //weit initiator output to high | |||
} | |||
///////// | |||
// start transaction by initiator | |||
// | |||
// int soft_serial_transaction(int sstd_index) | |||
// | |||
// Returns: | |||
// TRANSACTION_END | |||
// TRANSACTION_NO_RESPONSE | |||
// TRANSACTION_DATA_ERROR | |||
// this code is very time dependent, so we need to disable interrupts | |||
#ifndef SERIAL_USE_MULTI_TRANSACTION | |||
int soft_serial_transaction(void) { | |||
SSTD_t *trans = Transaction_table; | |||
#else | |||
int soft_serial_transaction(int sstd_index) { | |||
if( sstd_index > Transaction_table_size ) | |||
return TRANSACTION_TYPE_ERROR; | |||
SSTD_t *trans = &Transaction_table[sstd_index]; | |||
#endif | |||
cli(); | |||
// signal to the target that we want to start a transaction | |||
serial_output(); | |||
serial_low(); | |||
_delay_us(SLAVE_INT_WIDTH_US); | |||
#ifndef SERIAL_USE_MULTI_TRANSACTION | |||
// wait for the target response | |||
serial_input_with_pullup(); | |||
_delay_us(SLAVE_INT_RESPONSE_TIME); | |||
// check if the target is present | |||
if (serial_read_pin()) { | |||
// target failed to pull the line low, assume not present | |||
serial_output(); | |||
serial_high(); | |||
*trans->status = TRANSACTION_NO_RESPONSE; | |||
sei(); | |||
return TRANSACTION_NO_RESPONSE; | |||
} | |||
#else | |||
// send transaction table index | |||
int tid = (sstd_index<<3) | (7 & nibble_bits_count(sstd_index)); | |||
sync_send(); | |||
_delay_sub_us(TID_SEND_ADJUST); | |||
serial_write_chunk(tid, 7); | |||
serial_delay_half1(); | |||
// wait for the target response (step1 low->high) | |||
serial_input_with_pullup(); | |||
while( !serial_read_pin() ) { | |||
_delay_sub_us(2); | |||
} | |||
// check if the target is present (step2 high->low) | |||
for( int i = 0; serial_read_pin(); i++ ) { | |||
if (i > SLAVE_INT_ACK_WIDTH + 1) { | |||
// slave failed to pull the line low, assume not present | |||
serial_output(); | |||
serial_high(); | |||
*trans->status = TRANSACTION_NO_RESPONSE; | |||
sei(); | |||
return TRANSACTION_NO_RESPONSE; | |||
} | |||
_delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT); | |||
} | |||
#endif | |||
// initiator recive phase | |||
// if the target is present syncronize with it | |||
if( trans->target2initiator_buffer_size > 0 ) { | |||
if (!serial_recive_packet((uint8_t *)trans->target2initiator_buffer, | |||
trans->target2initiator_buffer_size) ) { | |||
serial_output(); | |||
serial_high(); | |||
*trans->status = TRANSACTION_DATA_ERROR; | |||
sei(); | |||
return TRANSACTION_DATA_ERROR; | |||
} | |||
} | |||
// initiator switch to output | |||
change_reciver2sender(); | |||
// initiator send phase | |||
if( trans->initiator2target_buffer_size > 0 ) { | |||
serial_send_packet((uint8_t *)trans->initiator2target_buffer, | |||
trans->initiator2target_buffer_size); | |||
} | |||
// always, release the line when not in use | |||
sync_send(); | |||
*trans->status = TRANSACTION_END; | |||
sei(); | |||
return TRANSACTION_END; | |||
} | |||
#ifdef SERIAL_USE_MULTI_TRANSACTION | |||
int soft_serial_get_and_clean_status(int sstd_index) { | |||
SSTD_t *trans = &Transaction_table[sstd_index]; | |||
cli(); | |||
int retval = *trans->status; | |||
*trans->status = 0;; | |||
sei(); | |||
return retval; | |||
} | |||
#endif | |||
#endif | |||
// Helix serial.c history | |||
// 2018-1-29 fork from let's split and add PD2, modify sync_recv() (#2308, bceffdefc) | |||
// 2018-6-28 bug fix master to slave comm and speed up (#3255, 1038bbef4) | |||
// (adjusted with avr-gcc 4.9.2) | |||
// 2018-7-13 remove USE_SERIAL_PD2 macro (#3374, f30d6dd78) | |||
// (adjusted with avr-gcc 4.9.2) | |||
// 2018-8-11 add support multi-type transaction (#3608, feb5e4aae) | |||
// (adjusted with avr-gcc 4.9.2) | |||
// 2018-10-21 fix serial and RGB animation conflict (#4191, 4665e4fff) | |||
// (adjusted with avr-gcc 7.3.0) | |||
// 2018-10-28 re-adjust compiler depend value of delay (#4269, 8517f8a66) | |||
// (adjusted with avr-gcc 5.4.0, 7.3.0) |
@ -1,89 +0,0 @@ | |||
#ifndef SOFT_SERIAL_H | |||
#define SOFT_SERIAL_H | |||
#include <stdbool.h> | |||
// ///////////////////////////////////////////////////////////////// | |||
// Need Soft Serial defines in config.h | |||
// ///////////////////////////////////////////////////////////////// | |||
// ex. | |||
// #define SOFT_SERIAL_PIN ?? // ?? = D0,D1,D2,D3,E6 | |||
// OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5 | |||
// // 1: about 137kbps (default) | |||
// // 2: about 75kbps | |||
// // 3: about 39kbps | |||
// // 4: about 26kbps | |||
// // 5: about 20kbps | |||
// | |||
// //// USE OLD API (compatible with let's split serial.c) | |||
// ex. | |||
// #define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2 | |||
// #define SERIAL_MASTER_BUFFER_LENGTH 1 | |||
// | |||
// //// USE NEW API | |||
// //// USE simple API (using signle-type transaction function) | |||
// #define SERIAL_USE_SINGLE_TRANSACTION | |||
// //// USE flexible API (using multi-type transaction function) | |||
// #define SERIAL_USE_MULTI_TRANSACTION | |||
// | |||
// ///////////////////////////////////////////////////////////////// | |||
//////////////// for backward compatibility //////////////////////////////// | |||
#if !defined(SERIAL_USE_SINGLE_TRANSACTION) && !defined(SERIAL_USE_MULTI_TRANSACTION) | |||
/* --- USE OLD API (compatible with let's split serial.c) */ | |||
#if SERIAL_SLAVE_BUFFER_LENGTH > 0 | |||
extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH]; | |||
#endif | |||
#if SERIAL_MASTER_BUFFER_LENGTH > 0 | |||
extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH]; | |||
#endif | |||
void serial_master_init(void); | |||
void serial_slave_init(void); | |||
int serial_update_buffers(void); | |||
#endif // end of USE OLD API | |||
//////////////////////////////////////////////////////////////////////////// | |||
// Soft Serial Transaction Descriptor | |||
typedef struct _SSTD_t { | |||
uint8_t *status; | |||
uint8_t initiator2target_buffer_size; | |||
uint8_t *initiator2target_buffer; | |||
uint8_t target2initiator_buffer_size; | |||
uint8_t *target2initiator_buffer; | |||
} SSTD_t; | |||
#define TID_LIMIT( table ) (sizeof(table) / sizeof(SSTD_t)) | |||
// initiator is transaction start side | |||
void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size); | |||
// target is interrupt accept side | |||
void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size); | |||
// initiator resullt | |||
#define TRANSACTION_END 0 | |||
#define TRANSACTION_NO_RESPONSE 0x1 | |||
#define TRANSACTION_DATA_ERROR 0x2 | |||
#define TRANSACTION_TYPE_ERROR 0x4 | |||
#ifndef SERIAL_USE_MULTI_TRANSACTION | |||
int soft_serial_transaction(void); | |||
#else | |||
int soft_serial_transaction(int sstd_index); | |||
#endif | |||
// target status | |||
// *SSTD_t.status has | |||
// initiator: | |||
// TRANSACTION_END | |||
// or TRANSACTION_NO_RESPONSE | |||
// or TRANSACTION_DATA_ERROR | |||
// target: | |||
// TRANSACTION_DATA_ERROR | |||
// or TRANSACTION_ACCEPTED | |||
#define TRANSACTION_ACCEPTED 0x8 | |||
#ifdef SERIAL_USE_MULTI_TRANSACTION | |||
int soft_serial_get_and_clean_status(int sstd_index); | |||
#endif | |||
#endif /* SOFT_SERIAL_H */ |
@ -1,10 +0,0 @@ | |||
#ifndef SOFT_SERIAL_CONFIG_H | |||
#define SOFT_SERIAL_CONFIG_H | |||
/* Soft Serial defines */ | |||
#define SOFT_SERIAL_PIN D2 | |||
#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2 | |||
#define SERIAL_MASTER_BUFFER_LENGTH 1 | |||
#endif /* SOFT_SERIAL_CONFIG_H */ |
@ -1,85 +0,0 @@ | |||
#include <avr/io.h> | |||
#include <avr/wdt.h> | |||
#include <avr/power.h> | |||
#include <avr/interrupt.h> | |||
#include <util/delay.h> | |||
#include <avr/eeprom.h> | |||
#include "split_util.h" | |||
#include "matrix.h" | |||
#include "keyboard.h" | |||
#include "config.h" | |||
#include "timer.h" | |||
#include "serial.h" | |||
volatile bool isLeftHand = true; | |||
static void setup_handedness(void) { | |||
#ifdef EE_HANDS | |||
isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS); | |||
#else | |||
// I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c | |||
#if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT) | |||
isLeftHand = !has_usb(); | |||
#else | |||
isLeftHand = has_usb(); | |||
#endif | |||
#endif | |||
} | |||
static void keyboard_master_setup(void) { | |||
#ifdef USE_I2C | |||
i2c_master_init(); | |||
#ifdef SSD1306OLED | |||
matrix_master_OLED_init (); | |||
#endif | |||
#else | |||
serial_master_init(); | |||
#endif | |||
} | |||
static void keyboard_slave_setup(void) { | |||
timer_init(); | |||
#ifdef USE_I2C | |||
i2c_slave_init(SLAVE_I2C_ADDRESS); | |||
#else | |||
serial_slave_init(); | |||
#endif | |||
} | |||
bool has_usb(void) { | |||
/* return (UDADDR & _BV(ADDEN)); */ | |||
USBCON |= (1 << OTGPADE); //enables VBUS pad | |||
_delay_us(5); | |||
return (USBSTA & (1<<VBUS)); //checks state of VBUS | |||
} | |||
void split_keyboard_setup(void) { | |||
setup_handedness(); | |||
if (isLeftHand) { | |||
/* if (has_usb()) { */ | |||
keyboard_master_setup(); | |||
} else { | |||
keyboard_slave_setup(); | |||
} | |||
sei(); | |||
} | |||
void keyboard_slave_loop(void) { | |||
matrix_init(); | |||
while (1) { | |||
matrix_slave_scan(); | |||
} | |||
} | |||
// this code runs before the usb and keyboard is initialized | |||
void matrix_setup(void) { | |||
split_keyboard_setup(); | |||
if (!isLeftHand) { | |||
/* if (!has_usb()) { */ | |||
keyboard_slave_loop(); | |||
} | |||
} |
@ -1,18 +0,0 @@ | |||
#ifndef SPLIT_KEYBOARD_UTIL_H | |||
#define SPLIT_KEYBOARD_UTIL_H | |||
#include <stdbool.h> | |||
#include "eeconfig.h" | |||
extern volatile bool isLeftHand; | |||
// slave version of matix scan, defined in matrix.c | |||
void matrix_slave_scan(void); | |||
void split_keyboard_setup(void); | |||
bool has_usb(void); | |||
void keyboard_slave_loop(void); | |||
void matrix_master_OLED_init (void); | |||
#endif |