diff options
| -rw-r--r-- | keyboards/lets_split/matrix.c | 242 | ||||
| -rw-r--r-- | keyboards/lets_split/split_util.c | 2 |
2 files changed, 197 insertions, 47 deletions
diff --git a/keyboards/lets_split/matrix.c b/keyboards/lets_split/matrix.c index 81dfb1445..4def27239 100644 --- a/keyboards/lets_split/matrix.c +++ b/keyboards/lets_split/matrix.c @@ -21,9 +21,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #include <stdint.h> #include <stdbool.h> #include <avr/io.h> -#include <avr/wdt.h> -#include <avr/interrupt.h> -#include <util/delay.h> +#include "wait.h" #include "print.h" #include "debug.h" #include "util.h" @@ -31,6 +29,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #include "split_util.h" #include "pro_micro.h" #include "config.h" +#include "timer.h" #ifdef USE_I2C # include "i2c.h" @@ -38,14 +37,29 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. # include "serial.h" #endif -#ifndef DEBOUNCE -# define DEBOUNCE 5 +#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 -static uint8_t debouncing = DEBOUNCE; -static const int ROWS_PER_HAND = MATRIX_ROWS/2; +#define ROWS_PER_HAND (MATRIX_ROWS/2) + static uint8_t error_count = 0; static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; @@ -55,11 +69,19 @@ static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; 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); - +#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_quantum(void) { matrix_init_kb(); @@ -118,33 +140,54 @@ void matrix_init(void) } 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); +#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(); + PORTD ^= (1 << 2); + } + +# 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 - 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(); } +#endif - if (debouncing) { - if (--debouncing) { - _delay_ms(1); - } else { +# 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; } @@ -200,9 +243,7 @@ int serial_transaction(void) { uint8_t matrix_scan(void) { - int ret = _matrix_scan(); - - + uint8_t ret = _matrix_scan(); #ifdef USE_I2C if( i2c_transaction() ) { @@ -233,11 +274,10 @@ uint8_t matrix_scan(void) void matrix_slave_scan(void) { _matrix_scan(); - int offset = (isLeftHand) ? 0 : (MATRIX_ROWS / 2); + 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]; */ i2c_slave_buffer[i] = matrix[offset+i]; } #else // USE_SERIAL @@ -284,33 +324,141 @@ uint8_t matrix_key_count(void) return count; } -static void init_cols(void) +#if (DIODE_DIRECTION == COL2ROW) + +static void init_cols(void) { - for(int x = 0; x < MATRIX_COLS; x++) { - _SFR_IO8((col_pins[x] >> 4) + 1) &= ~_BV(col_pins[x] & 0xF); - _SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF); + 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 matrix_row_t read_cols(void) +static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) { - 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); + // 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); } - return result; + + // 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(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); + 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 void select_row(uint8_t row) +#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) { - _SFR_IO8((row_pins[row] >> 4) + 1) |= _BV(row_pins[row] & 0xF); - _SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF); + 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/lets_split/split_util.c b/keyboards/lets_split/split_util.c index 39639c3b4..346cbc908 100644 --- a/keyboards/lets_split/split_util.c +++ b/keyboards/lets_split/split_util.c @@ -8,6 +8,7 @@ #include "matrix.h" #include "keyboard.h" #include "config.h" +#include "timer.h" #ifdef USE_I2C # include "i2c.h" @@ -42,6 +43,7 @@ static void keyboard_master_setup(void) { } static void keyboard_slave_setup(void) { + timer_init(); #ifdef USE_I2C i2c_slave_init(SLAVE_I2C_ADDRESS); #else |