diff --git a/keyboards/lily58/rev1/config.h b/keyboards/lily58/rev1/config.h index 39b15fc5b60..24dc41151fa 100644 --- a/keyboards/lily58/rev1/config.h +++ b/keyboards/lily58/rev1/config.h @@ -35,6 +35,8 @@ along with this program. If not, see . #define MATRIX_ROW_PINS { C6, D7, E6, B4, B5 } #define MATRIX_COL_PINS { F6, F7, B1, B3, B2, B6 } +#define SOFT_SERIAL_PIN D2 +#define SERIAL_USE_MULTI_TRANSACTION /* define if matrix has ghost */ //#define MATRIX_HAS_GHOST diff --git a/keyboards/lily58/rev1/matrix.c b/keyboards/lily58/rev1/matrix.c deleted file mode 100755 index d3ba1c924e7..00000000000 --- a/keyboards/lily58/rev1/matrix.c +++ /dev/null @@ -1,357 +0,0 @@ -/* -Copyright 2012 Jun Wako - -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 . -*/ - -/* - * scan matrix - */ -#include -#include -#include -#include -#include -#include -#include -#include "print.h" -#include "debug.h" -#include "util.h" -#include "matrix.h" -#include "split_util.h" -#include "quantum.h" - -#ifdef USE_MATRIX_I2C -# include "i2c.h" -#else // USE_SERIAL -# include "split_scomm.h" -#endif - -#ifndef DEBOUNCE -# define DEBOUNCE 5 -#endif - -#define ERROR_DISCONNECT_COUNT 5 - -static uint8_t debouncing = DEBOUNCE; -static const int ROWS_PER_HAND = MATRIX_ROWS/2; -static uint8_t error_count = 0; -uint8_t is_master = 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]; - -static matrix_row_t read_cols(void); -static void init_cols(void); -static void unselect_rows(void); -static void select_row(uint8_t row); -static uint8_t matrix_master_scan(void); - - -__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) -{ - split_keyboard_setup(); - - // initialize row and col - unselect_rows(); - init_cols(); - - setPinOutput(B0); - setPinOutput(D5); - writePinHigh(B0); - writePinHigh(D5); - - // initialize matrix state: all keys off - for (uint8_t i=0; i < MATRIX_ROWS; i++) { - matrix[i] = 0; - matrix_debouncing[i] = 0; - } - - is_master = has_usb(); - - matrix_init_quantum(); -} - -uint8_t _matrix_scan(void) -{ - // Right hand is stored after the left in the matirx so, we need to offset it - int offset = isLeftHand ? 0 : (ROWS_PER_HAND); - - for (uint8_t i = 0; i < ROWS_PER_HAND; i++) { - select_row(i); - _delay_us(30); // without this wait read unstable value. - matrix_row_t cols = read_cols(); - if (matrix_debouncing[i+offset] != cols) { - matrix_debouncing[i+offset] = cols; - debouncing = DEBOUNCE; - } - unselect_rows(); - } - - if (debouncing) { - if (--debouncing) { - _delay_ms(1); - } else { - for (uint8_t i = 0; i < ROWS_PER_HAND; i++) { - matrix[i+offset] = matrix_debouncing[i+offset]; - } - } - } - - return 1; -} - -#ifdef USE_MATRIX_I2C - -// Get rows from other half over i2c -int i2c_transaction(void) { - int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; - - int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); - if (err) goto i2c_error; - - // start of matrix stored at 0x00 - err = i2c_master_write(0x00); - if (err) goto i2c_error; - - // Start read - err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ); - if (err) goto i2c_error; - - if (!err) { - int i; - for (i = 0; i < ROWS_PER_HAND-1; ++i) { - matrix[slaveOffset+i] = i2c_master_read(I2C_ACK); - } - matrix[slaveOffset+i] = i2c_master_read(I2C_NACK); - i2c_master_stop(); - } else { -i2c_error: // the cable is disconnceted, or something else went wrong - i2c_reset_state(); - return err; - } - - return 0; -} - -#else // USE_SERIAL - -int serial_transaction(int master_changed) { - int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; -#ifdef SERIAL_USE_MULTI_TRANSACTION - int ret=serial_update_buffers(master_changed); -#else - int ret=serial_update_buffers(); -#endif - if (ret ) { - if(ret==2) writePinLow(B0); - return 1; - } - writePinHigh(B0); - memcpy(&matrix[slaveOffset], - (void *)serial_slave_buffer, SERIAL_SLAVE_BUFFER_LENGTH); - return 0; -} -#endif - -uint8_t matrix_scan(void) -{ - if (is_master) { - matrix_master_scan(); - }else{ - matrix_slave_scan(); - int offset = (isLeftHand) ? ROWS_PER_HAND : 0; - memcpy(&matrix[offset], - (void *)serial_master_buffer, SERIAL_MASTER_BUFFER_LENGTH); - matrix_scan_quantum(); - } - return 1; -} - - -uint8_t matrix_master_scan(void) { - - int ret = _matrix_scan(); - int mchanged = 1; - - int offset = (isLeftHand) ? 0 : ROWS_PER_HAND; - -#ifdef USE_MATRIX_I2C -// for (int i = 0; i < ROWS_PER_HAND; ++i) { - /* i2c_slave_buffer[i] = matrix[offset+i]; */ -// i2c_slave_buffer[i] = matrix[offset+i]; -// } -#else // USE_SERIAL - #ifdef SERIAL_USE_MULTI_TRANSACTION - mchanged = memcmp((void *)serial_master_buffer, - &matrix[offset], SERIAL_MASTER_BUFFER_LENGTH); - #endif - memcpy((void *)serial_master_buffer, - &matrix[offset], SERIAL_MASTER_BUFFER_LENGTH); -#endif - -#ifdef USE_MATRIX_I2C - if( i2c_transaction() ) { -#else // USE_SERIAL - if( serial_transaction(mchanged) ) { -#endif - // turn on the indicator led when halves are disconnected - writePinLow(D5); - - 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 - writePinHigh(D5); - error_count = 0; - } - matrix_scan_quantum(); - return ret; -} - -void matrix_slave_scan(void) { - _matrix_scan(); - - int offset = (isLeftHand) ? 0 : ROWS_PER_HAND; - -#ifdef USE_MATRIX_I2C - for (int i = 0; i < ROWS_PER_HAND; ++i) { - /* i2c_slave_buffer[i] = matrix[offset+i]; */ - i2c_slave_buffer[i] = matrix[offset+i]; - } -#else // USE_SERIAL - #ifdef SERIAL_USE_MULTI_TRANSACTION - int change = 0; - #endif - for (int i = 0; i < ROWS_PER_HAND; ++i) { - #ifdef SERIAL_USE_MULTI_TRANSACTION - if( serial_slave_buffer[i] != matrix[offset+i] ) - change = 1; - #endif - serial_slave_buffer[i] = matrix[offset+i]; - } - #ifdef SERIAL_USE_MULTI_TRANSACTION - slave_buffer_change_count += change; - #endif -#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<> 4) + 1) &= ~_BV(col_pins[x] & 0xF); - _SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF); - } -} - -static matrix_row_t read_cols(void) -{ - matrix_row_t result = 0; - for(int x = 0; x < MATRIX_COLS; x++) { - result |= (_SFR_IO8(col_pins[x] >> 4) & _BV(col_pins[x] & 0xF)) ? 0 : (1 << x); - } - return result; -} - -static void unselect_rows(void) -{ - for(int x = 0; x < ROWS_PER_HAND; x++) { - _SFR_IO8((row_pins[x] >> 4) + 1) &= ~_BV(row_pins[x] & 0xF); - _SFR_IO8((row_pins[x] >> 4) + 2) |= _BV(row_pins[x] & 0xF); - } -} - -static void select_row(uint8_t row) -{ - _SFR_IO8((row_pins[row] >> 4) + 1) |= _BV(row_pins[row] & 0xF); - _SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF); -} diff --git a/keyboards/lily58/rev1/serial_config.h b/keyboards/lily58/rev1/serial_config.h deleted file mode 100755 index 4fab8e8ddfc..00000000000 --- a/keyboards/lily58/rev1/serial_config.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef SOFT_SERIAL_PIN -#define SOFT_SERIAL_PIN D2 -#define SERIAL_USE_MULTI_TRANSACTION -#endif diff --git a/keyboards/lily58/rev1/split_util.c b/keyboards/lily58/rev1/split_util.c deleted file mode 100755 index 316c1c389e9..00000000000 --- a/keyboards/lily58/rev1/split_util.c +++ /dev/null @@ -1,100 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include "split_util.h" -#include "matrix.h" -#include "keyboard.h" -#include "wait.h" - -#ifdef USE_MATRIX_I2C -# include "i2c.h" -#else -# include "split_scomm.h" -#endif - -#ifndef SPLIT_USB_TIMEOUT -# define SPLIT_USB_TIMEOUT 2500 -#endif - -volatile bool isLeftHand = true; - -bool waitForUsb(void) { - for (uint8_t i = 0; i < (SPLIT_USB_TIMEOUT / 100); i++) { - // This will return true of a USB connection has been established - if (UDADDR & _BV(ADDEN)) { - return true; - } - wait_ms(100); - } - - // Avoid NO_USB_STARTUP_CHECK - Disable USB as the previous checks seem to enable it somehow - (USBCON &= ~(_BV(USBE) | _BV(OTGPADE))); - - return false; -} - -__attribute__((weak)) bool is_keyboard_left(void) { -#if defined(SPLIT_HAND_PIN) - // Test pin SPLIT_HAND_PIN for High/Low, if low it's right hand - setPinInput(SPLIT_HAND_PIN); - return readPin(SPLIT_HAND_PIN); -#elif defined(EE_HANDS) - return eeconfig_read_handedness(); -#elif defined(MASTER_RIGHT) - return !has_usb(); -#endif - - return has_usb(); -} - -__attribute__((weak)) bool has_usb(void) { - static enum { UNKNOWN, MASTER, SLAVE } usbstate = UNKNOWN; - - // only check once, as this is called often - if (usbstate == UNKNOWN) { -#if defined(SPLIT_USB_DETECT) - usbstate = waitForUsb() ? MASTER : SLAVE; -#elif defined(__AVR__) - USBCON |= (1 << OTGPADE); // enables VBUS pad - wait_us(5); - - usbstate = (USBSTA & (1 << VBUS)) ? MASTER : SLAVE; // checks state of VBUS -#else - usbstate = MASTER; -#endif - } - - return (usbstate == MASTER); -} - -static void keyboard_master_setup(void) { - -#ifdef USE_MATRIX_I2C - i2c_master_init(); -#else - serial_master_init(); -#endif -} - -static void keyboard_slave_setup(void) { - -#ifdef USE_MATRIX_I2C - i2c_slave_init(SLAVE_I2C_ADDRESS); -#else - serial_slave_init(); -#endif -} - -void split_keyboard_setup(void) { - isLeftHand = is_keyboard_left(); - - if (has_usb()) { - keyboard_master_setup(); - } else { - keyboard_slave_setup(); - } - sei(); -} diff --git a/keyboards/lily58/serial.c b/keyboards/lily58/serial.c deleted file mode 100755 index f6293c3dc23..00000000000 --- a/keyboards/lily58/serial.c +++ /dev/null @@ -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 -#include -#include -#include -#include -#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 //////////////////////////////// -#ifndef SERIAL_USE_MULTI_TRANSACTION -/* --- USE Simple API (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 Simple API (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)