diff options
Diffstat (limited to 'keyboards/redox')
| -rw-r--r-- | keyboards/redox/i2c.c | 162 | ||||
| -rw-r--r-- | keyboards/redox/i2c.h | 49 | ||||
| -rw-r--r-- | keyboards/redox/keymaps/default/keymap.c | 1 | ||||
| -rw-r--r-- | keyboards/redox/keymaps/italian/keymap.c | 1 | ||||
| -rw-r--r-- | keyboards/redox/matrix.c | 459 | ||||
| -rw-r--r-- | keyboards/redox/rules.mk | 7 | ||||
| -rw-r--r-- | keyboards/redox/serial.c | 228 | ||||
| -rw-r--r-- | keyboards/redox/serial.h | 26 | ||||
| -rw-r--r-- | keyboards/redox/split_util.c | 86 | ||||
| -rw-r--r-- | keyboards/redox/split_util.h | 21 |
10 files changed, 1 insertions, 1039 deletions
diff --git a/keyboards/redox/i2c.c b/keyboards/redox/i2c.c deleted file mode 100644 index 084c890c4..000000000 --- a/keyboards/redox/i2c.c +++ /dev/null @@ -1,162 +0,0 @@ -#include <util/twi.h> -#include <avr/io.h> -#include <stdlib.h> -#include <avr/interrupt.h> -#include <util/twi.h> -#include <stdbool.h> -#include "i2c.h" - -#ifdef USE_I2C - -// Limits the amount of we wait for any one i2c transaction. -// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is -// 9 bits, a single transaction will take around 90μs to complete. -// -// (F_CPU/SCL_CLOCK) => # of μC cycles to transfer a bit -// poll loop takes at least 8 clock cycles to execute -#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8 - -#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE) - -volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE]; - -static volatile uint8_t slave_buffer_pos; -static volatile bool slave_has_register_set = false; - -// Wait for an i2c operation to finish -inline static -void i2c_delay(void) { - uint16_t lim = 0; - while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT) - lim++; - - // easier way, but will wait slightly longer - // _delay_us(100); -} - -// Setup twi to run at 100kHz -void i2c_master_init(void) { - // no prescaler - TWSR = 0; - // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10. - // Check datasheets for more info. - TWBR = ((F_CPU/SCL_CLOCK)-16)/2; -} - -// Start a transaction with the given i2c slave address. The direction of the -// transfer is set with I2C_READ and I2C_WRITE. -// returns: 0 => success -// 1 => error -uint8_t i2c_master_start(uint8_t address) { - TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA); - - i2c_delay(); - - // check that we started successfully - if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START)) - return 1; - - TWDR = address; - TWCR = (1<<TWINT) | (1<<TWEN); - - i2c_delay(); - - if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) ) - return 1; // slave did not acknowledge - else - return 0; // success -} - - -// Finish the i2c transaction. -void i2c_master_stop(void) { - TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO); - - uint16_t lim = 0; - while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT) - lim++; -} - -// Write one byte to the i2c slave. -// returns 0 => slave ACK -// 1 => slave NACK -uint8_t i2c_master_write(uint8_t data) { - TWDR = data; - TWCR = (1<<TWINT) | (1<<TWEN); - - i2c_delay(); - - // check if the slave acknowledged us - return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1; -} - -// Read one byte from the i2c slave. If ack=1 the slave is acknowledged, -// if ack=0 the acknowledge bit is not set. -// returns: byte read from i2c device -uint8_t i2c_master_read(int ack) { - TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA); - - i2c_delay(); - return TWDR; -} - -void i2c_reset_state(void) { - TWCR = 0; -} - -void i2c_slave_init(uint8_t address) { - TWAR = address << 0; // slave i2c address - // TWEN - twi enable - // TWEA - enable address acknowledgement - // TWINT - twi interrupt flag - // TWIE - enable the twi interrupt - TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN); -} - -ISR(TWI_vect); - -ISR(TWI_vect) { - uint8_t ack = 1; - switch(TW_STATUS) { - case TW_SR_SLA_ACK: - // this device has been addressed as a slave receiver - slave_has_register_set = false; - break; - - case TW_SR_DATA_ACK: - // this device has received data as a slave receiver - // The first byte that we receive in this transaction sets the location - // of the read/write location of the slaves memory that it exposes over - // i2c. After that, bytes will be written at slave_buffer_pos, incrementing - // slave_buffer_pos after each write. - if(!slave_has_register_set) { - slave_buffer_pos = TWDR; - // don't acknowledge the master if this memory loctaion is out of bounds - if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) { - ack = 0; - slave_buffer_pos = 0; - } - slave_has_register_set = true; - } else { - i2c_slave_buffer[slave_buffer_pos] = TWDR; - BUFFER_POS_INC(); - } - break; - - case TW_ST_SLA_ACK: - case TW_ST_DATA_ACK: - // master has addressed this device as a slave transmitter and is - // requesting data. - TWDR = i2c_slave_buffer[slave_buffer_pos]; - BUFFER_POS_INC(); - break; - - case TW_BUS_ERROR: // something went wrong, reset twi state - TWCR = 0; - default: - break; - } - // Reset everything, so we are ready for the next TWI interrupt - TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN); -} -#endif diff --git a/keyboards/redox/i2c.h b/keyboards/redox/i2c.h deleted file mode 100644 index 43e596988..000000000 --- a/keyboards/redox/i2c.h +++ /dev/null @@ -1,49 +0,0 @@ -#ifndef I2C_H -#define I2C_H - -#include <stdint.h> - -#ifndef F_CPU -#define F_CPU 16000000UL -#endif - -#define I2C_READ 1 -#define I2C_WRITE 0 - -#define I2C_ACK 1 -#define I2C_NACK 0 - -#define SLAVE_BUFFER_SIZE 0x10 - -// i2c SCL clock frequency -#define SCL_CLOCK 100000L - -extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE]; - -void i2c_master_init(void); -uint8_t i2c_master_start(uint8_t address); -void i2c_master_stop(void); -uint8_t i2c_master_write(uint8_t data); -uint8_t i2c_master_read(int); -void i2c_reset_state(void); -void i2c_slave_init(uint8_t address); - - -static inline unsigned char i2c_start_read(unsigned char addr) { - return i2c_master_start((addr << 1) | I2C_READ); -} - -static inline unsigned char i2c_start_write(unsigned char addr) { - return i2c_master_start((addr << 1) | I2C_WRITE); -} - -// from SSD1306 scrips -extern unsigned char i2c_rep_start(unsigned char addr); -extern void i2c_start_wait(unsigned char addr); -extern unsigned char i2c_readAck(void); -extern unsigned char i2c_readNak(void); -extern unsigned char i2c_read(unsigned char ack); - -#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak(); - -#endif diff --git a/keyboards/redox/keymaps/default/keymap.c b/keyboards/redox/keymaps/default/keymap.c index bbaf756c4..3031a0c8e 100644 --- a/keyboards/redox/keymaps/default/keymap.c +++ b/keyboards/redox/keymaps/default/keymap.c @@ -1,7 +1,6 @@ #include QMK_KEYBOARD_H extern keymap_config_t keymap_config; -extern rgblight_config_t rgblight_config; // Each layer gets a name for readability, which is then used in the keymap matrix below. // The underscores don't mean anything - you can have a layer called STUFF or any other name. diff --git a/keyboards/redox/keymaps/italian/keymap.c b/keyboards/redox/keymaps/italian/keymap.c index d8fd76d02..c590d2d2d 100644 --- a/keyboards/redox/keymaps/italian/keymap.c +++ b/keyboards/redox/keymaps/italian/keymap.c @@ -1,7 +1,6 @@ #include QMK_KEYBOARD_H extern keymap_config_t keymap_config; -extern rgblight_config_t rgblight_config; // Each layer gets a name for readability, which is then used in the keymap matrix below. // The underscores don't mean anything - you can have a layer called STUFF or any other name. diff --git a/keyboards/redox/matrix.c b/keyboards/redox/matrix.c deleted file mode 100644 index 00a5e6648..000000000 --- a/keyboards/redox/matrix.c +++ /dev/null @@ -1,459 +0,0 @@ -/* -Copyright 2018 Mattia Dal Ben <matthewdibi@gmail.com> - -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 USE_I2C -# include "i2c.h" -#else // USE_SERIAL -# include "serial.h" -#endif - -#ifndef DEBOUNCING_DELAY -# define DEBOUNCING_DELAY 5 -#endif - -#if (DEBOUNCING_DELAY > 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 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 -#if (DIODE_DIRECTION == COL2ROW) - unselect_rows(); - init_cols(); -#elif (DIODE_DIRECTION == ROW2COL) - unselect_cols(); - init_rows(); -#endif - - 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 (DEBOUNCING_DELAY > 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 (DEBOUNCING_DELAY > 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 (DEBOUNCING_DELAY > 0) - if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) { - for (uint8_t i = 0; i < ROWS_PER_HAND; i++) { - matrix[i+offset] = matrix_debouncing[i+offset]; - } - debouncing = false; - } -# endif - - return 1; -} - -#ifdef USE_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(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]; - } - return 0; -} -#endif - -uint8_t matrix_scan(void) -{ - uint8_t ret = _matrix_scan(); - -#ifdef USE_I2C - if( i2c_transaction() ) { -#else // USE_SERIAL - if( serial_transaction() ) { -#endif - // 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; - -#ifdef USE_I2C - for (int i = 0; i < ROWS_PER_HAND; ++i) { - i2c_slave_buffer[i] = matrix[offset+i]; - } -#else // USE_SERIAL - for (int i = 0; i < ROWS_PER_HAND; ++i) { - serial_slave_buffer[i] = matrix[offset+i]; - } -#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 diff --git a/keyboards/redox/rules.mk b/keyboards/redox/rules.mk index 3e79bf1fe..c74a3bda2 100644 --- a/keyboards/redox/rules.mk +++ b/keyboards/redox/rules.mk @@ -1,8 +1,3 @@ -SRC += matrix.c \ - i2c.c \ - split_util.c \ - serial.c - # MCU name #MCU = at90usb1286 MCU = atmega32u4 @@ -75,6 +70,6 @@ RGBLIGHT_ENABLE = no # Enable WS2812 RGB underlight. Do not enable this SUBPROJECT_rev1 = yes USE_I2C = yes -CUSTOM_MATRIX = yes +SPLIT_KEYBOARD = yes DEFAULT_FOLDER = redox/rev1 diff --git a/keyboards/redox/serial.c b/keyboards/redox/serial.c deleted file mode 100644 index 6faed09ce..000000000 --- a/keyboards/redox/serial.c +++ /dev/null @@ -1,228 +0,0 @@ -/* - * WARNING: be careful changing this code, it is very timing dependent - */ - -#ifndef F_CPU -#define F_CPU 16000000 -#endif - -#include <avr/io.h> -#include <avr/interrupt.h> -#include <util/delay.h> -#include <stdbool.h> -#include "serial.h" - -#ifdef USE_SERIAL - -// Serial pulse period in microseconds. Its probably a bad idea to lower this -// value. -#define SERIAL_DELAY 24 - -uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0}; -uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0}; - -#define SLAVE_DATA_CORRUPT (1<<0) -volatile uint8_t status = 0; - -inline static -void serial_delay(void) { - _delay_us(SERIAL_DELAY); -} - -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(void) { - SERIAL_PIN_DDR &= ~SERIAL_PIN_MASK; - SERIAL_PIN_PORT |= SERIAL_PIN_MASK; -} - -inline static -uint8_t serial_read_pin(void) { - return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK); -} - -inline static -void serial_low(void) { - SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK; -} - -inline static -void serial_high(void) { - SERIAL_PIN_PORT |= SERIAL_PIN_MASK; -} - -void serial_master_init(void) { - serial_output(); - serial_high(); -} - -void serial_slave_init(void) { - serial_input(); - - // Enable INT0 - EIMSK |= _BV(INT0); - // Trigger on falling edge of INT0 - EICRA &= ~(_BV(ISC00) | _BV(ISC01)); -} - -// Used by the master to synchronize timing with the slave. -static -void sync_recv(void) { - serial_input(); - // This shouldn't hang if the slave disconnects because the - // serial line will float to high if the slave does disconnect. - while (!serial_read_pin()); - serial_delay(); -} - -// Used by the slave to send a synchronization signal to the master. -static -void sync_send(void) { - serial_output(); - - serial_low(); - serial_delay(); - - serial_high(); -} - -// Reads a byte from the serial line -static -uint8_t serial_read_byte(void) { - uint8_t byte = 0; - serial_input(); - for ( uint8_t i = 0; i < 8; ++i) { - byte = (byte << 1) | serial_read_pin(); - serial_delay(); - _delay_us(1); - } - - return byte; -} - -// Sends a byte with MSB ordering -static -void serial_write_byte(uint8_t data) { - uint8_t b = 8; - serial_output(); - while( b-- ) { - if(data & (1 << b)) { - serial_high(); - } else { - serial_low(); - } - serial_delay(); - } -} - -// interrupt handle to be used by the slave device -ISR(SERIAL_PIN_INTERRUPT) { - sync_send(); - - uint8_t checksum = 0; - for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) { - serial_write_byte(serial_slave_buffer[i]); - sync_send(); - checksum += serial_slave_buffer[i]; - } - serial_write_byte(checksum); - sync_send(); - - // wait for the sync to finish sending - serial_delay(); - - // read the middle of pulses - _delay_us(SERIAL_DELAY/2); - - uint8_t checksum_computed = 0; - for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) { - serial_master_buffer[i] = serial_read_byte(); - sync_send(); - checksum_computed += serial_master_buffer[i]; - } - uint8_t checksum_received = serial_read_byte(); - sync_send(); - - serial_input(); // end transaction - - if ( checksum_computed != checksum_received ) { - status |= SLAVE_DATA_CORRUPT; - } else { - status &= ~SLAVE_DATA_CORRUPT; - } -} - -inline -bool serial_slave_DATA_CORRUPT(void) { - return status & SLAVE_DATA_CORRUPT; -} - -// Copies the serial_slave_buffer to the master and sends the -// serial_master_buffer to the slave. -// -// Returns: -// 0 => no error -// 1 => slave did not respond -int serial_update_buffers(void) { - // this code is very time dependent, so we need to disable interrupts - cli(); - - // signal to the slave that we want to start a transaction - serial_output(); - serial_low(); - _delay_us(1); - - // wait for the slaves response - serial_input(); - serial_high(); - _delay_us(SERIAL_DELAY); - - // check if the slave is present - if (serial_read_pin()) { - // slave failed to pull the line low, assume not present - sei(); - return 1; - } - - // if the slave is present syncronize with it - sync_recv(); - - uint8_t checksum_computed = 0; - // receive data from the slave - for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) { - serial_slave_buffer[i] = serial_read_byte(); - sync_recv(); - checksum_computed += serial_slave_buffer[i]; - } - uint8_t checksum_received = serial_read_byte(); - sync_recv(); - - if (checksum_computed != checksum_received) { - sei(); - return 1; - } - - uint8_t checksum = 0; - // send data to the slave - for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) { - serial_write_byte(serial_master_buffer[i]); - sync_recv(); - checksum += serial_master_buffer[i]; - } - serial_write_byte(checksum); - sync_recv(); - - // always, release the line when not in use - serial_output(); - serial_high(); - - sei(); - return 0; -} - -#endif diff --git a/keyboards/redox/serial.h b/keyboards/redox/serial.h deleted file mode 100644 index 15fe4db7b..000000000 --- a/keyboards/redox/serial.h +++ /dev/null @@ -1,26 +0,0 @@ -#ifndef MY_SERIAL_H -#define MY_SERIAL_H - -#include "config.h" -#include <stdbool.h> - -/* TODO: some defines for interrupt setup */ -#define SERIAL_PIN_DDR DDRD -#define SERIAL_PIN_PORT PORTD -#define SERIAL_PIN_INPUT PIND -#define SERIAL_PIN_MASK _BV(PD0) -#define SERIAL_PIN_INTERRUPT INT0_vect - -#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2 -#define SERIAL_MASTER_BUFFER_LENGTH 1 - -// Buffers for master - slave communication -extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH]; -extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH]; - -void serial_master_init(void); -void serial_slave_init(void); -int serial_update_buffers(void); -bool serial_slave_data_corrupt(void); - -#endif diff --git a/keyboards/redox/split_util.c b/keyboards/redox/split_util.c deleted file mode 100644 index 346cbc908..000000000 --- a/keyboards/redox/split_util.c +++ /dev/null @@ -1,86 +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" - -#ifdef USE_I2C -# include "i2c.h" -#else -# include "serial.h" -#endif - -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) { - 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 (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 (!has_usb()) { - keyboard_slave_loop(); - } -} diff --git a/keyboards/redox/split_util.h b/keyboards/redox/split_util.h deleted file mode 100644 index a0a8dd3bf..000000000 --- a/keyboards/redox/split_util.h +++ /dev/null @@ -1,21 +0,0 @@ -#ifndef SPLIT_KEYBOARD_UTIL_H -#define SPLIT_KEYBOARD_UTIL_H - -#include <stdbool.h> -#include "eeconfig.h" - - -#define SLAVE_I2C_ADDRESS 0x32 - -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 |