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@ -34,311 +34,21 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. |
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#include "matrix_scanrate.h" |
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#endif |
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#ifdef USE_I2C |
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# include "i2c.h" |
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#else // USE_SERIAL |
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# error "only i2c supported" |
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#endif |
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#ifndef DEBOUNCING_DELAY |
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# define DEBOUNCING_DELAY 5 |
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#endif |
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#if (MATRIX_COLS <= 8) |
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# define print_matrix_header() print("\nr/c 01234567\n") |
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# define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row)) |
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# define matrix_bitpop(i) bitpop(matrix[i]) |
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# define ROW_SHIFTER ((uint8_t)1) |
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#else |
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# error "Currently only supports 8 COLS" |
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#endif |
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#define ERROR_DISCONNECT_COUNT 5 |
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#define ROWS_PER_HAND (MATRIX_ROWS/2) |
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static uint8_t error_count = 0; |
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static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; |
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static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; |
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/* matrix state(1:on, 0:off) */ |
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static matrix_row_t matrix[MATRIX_ROWS]; |
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static matrix_row_t matrix_debouncing[MATRIX_ROWS]; |
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static matrix_row_t* debouncing_matrix_hand_offsetted; //pointer to matrix_debouncing for our hand |
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static matrix_row_t* matrix_hand_offsetted; // pointer to matrix for our hand |
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//Debouncing counters |
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typedef uint8_t debounce_counter_t; |
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#define DEBOUNCE_COUNTER_MODULO 250 |
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#define DEBOUNCE_COUNTER_INACTIVE 251 |
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static debounce_counter_t debounce_counters[MATRIX_ROWS * MATRIX_COLS]; |
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static debounce_counter_t *debounce_counters_hand_offsetted; |
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#if (DIODE_DIRECTION == ROW2COL) |
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error "Only Col2Row supported"; |
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#endif |
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static void init_cols(void); |
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static void unselect_rows(void); |
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static void select_row(uint8_t row); |
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static void unselect_row(uint8_t row); |
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static matrix_row_t optimized_col_reader(void); |
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__attribute__ ((weak)) |
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void matrix_init_kb(void) { |
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matrix_init_user(); |
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} |
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__attribute__ ((weak)) |
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void matrix_scan_kb(void) { |
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matrix_scan_user(); |
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} |
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__attribute__ ((weak)) |
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void matrix_init_user(void) { |
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} |
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__attribute__ ((weak)) |
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void matrix_scan_user(void) { |
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} |
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__attribute__ ((weak)) |
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void matrix_slave_scan_user(void) { |
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} |
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inline |
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uint8_t matrix_rows(void) |
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{ |
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return MATRIX_ROWS; |
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} |
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inline |
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uint8_t matrix_cols(void) |
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{ |
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return MATRIX_COLS; |
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} |
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void matrix_init(void) |
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{ |
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#ifdef DISABLE_JTAG |
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// JTAG disable for PORT F. write JTD bit twice within four cycles. |
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MCUCR |= (1<<JTD); |
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MCUCR |= (1<<JTD); |
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#endif |
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debug_enable = true; |
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debug_matrix = false; |
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debug_mouse = false; |
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// initialize row and col |
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unselect_rows(); |
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init_cols(); |
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TX_RX_LED_INIT; |
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// initialize matrix state: all keys off |
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for (uint8_t i=0; i < MATRIX_ROWS; i++) { |
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matrix[i] = 0; |
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matrix_debouncing[i] = 0; |
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} |
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int my_hand_offset = isLeftHand ? 0 : (ROWS_PER_HAND); |
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debouncing_matrix_hand_offsetted = matrix_debouncing + my_hand_offset; |
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matrix_hand_offsetted = matrix + my_hand_offset; |
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debounce_counters_hand_offsetted = debounce_counters + my_hand_offset; |
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for (uint8_t i = 0; i < MATRIX_ROWS * MATRIX_COLS; i++) { |
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debounce_counters[i] = DEBOUNCE_COUNTER_INACTIVE; |
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} |
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matrix_init_quantum(); |
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} |
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//#define TIMER_DIFF(a, b, max) ((a) >= (b) ? (a) - (b) : (max) - (b) + (a)) |
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void update_debounce_counters(uint8_t current_time) |
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{ |
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debounce_counter_t *debounce_pointer = debounce_counters_hand_offsetted; |
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for (uint8_t row = 0; row < ROWS_PER_HAND; row++) |
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{ |
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for (uint8_t col = 0; col < MATRIX_COLS; col++) |
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{ |
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if (*debounce_pointer != DEBOUNCE_COUNTER_INACTIVE) |
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{ |
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if (TIMER_DIFF(current_time, *debounce_pointer, DEBOUNCE_COUNTER_MODULO) >= |
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DEBOUNCING_DELAY) { |
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*debounce_pointer = DEBOUNCE_COUNTER_INACTIVE; |
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} |
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} |
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debounce_pointer++; |
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} |
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} |
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} |
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void transfer_matrix_values(uint8_t current_time) |
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{ |
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//upload from debounce_matrix to final matrix; |
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debounce_counter_t *debounce_pointer = debounce_counters_hand_offsetted; |
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for (uint8_t row = 0; row < ROWS_PER_HAND; row++) |
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{ |
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matrix_row_t row_value = matrix_hand_offsetted[row]; |
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matrix_row_t debounce_value = debouncing_matrix_hand_offsetted[row]; |
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for (uint8_t col = 0; col < MATRIX_COLS; col++) |
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{ |
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bool final_value = debounce_value & (1 << col); |
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bool current_value = row_value & (1 << col); |
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if (*debounce_pointer == DEBOUNCE_COUNTER_INACTIVE |
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&& (current_value != final_value)) |
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{ |
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*debounce_pointer = current_time; |
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row_value ^= (1 << col); |
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} |
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debounce_pointer++; |
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} |
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matrix_hand_offsetted[row] = row_value; |
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} |
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} |
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uint8_t _matrix_scan(void) |
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{ |
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uint8_t current_time = timer_read() % DEBOUNCE_COUNTER_MODULO; |
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// Set row, read cols |
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for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) { |
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select_row(current_row); |
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asm volatile ("nop"); asm volatile("nop"); |
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debouncing_matrix_hand_offsetted[current_row] = optimized_col_reader(); |
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// Unselect row |
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unselect_row(current_row); |
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} |
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update_debounce_counters(current_time); |
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transfer_matrix_values(current_time); |
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return 1; |
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} |
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// Get rows from other half over i2c |
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int i2c_transaction(void) { |
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int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; |
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int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); |
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if (err) goto i2c_error; |
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// start of matrix stored at 0x00 |
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err = i2c_master_write(I2C_KEYMAP_START); |
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if (err) goto i2c_error; |
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// Start read |
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err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ); |
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if (err) goto i2c_error; |
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if (!err) { |
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int i; |
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for (i = 0; i < ROWS_PER_HAND-1; ++i) { |
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matrix[slaveOffset+i] = i2c_master_read(I2C_ACK); |
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} |
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matrix[slaveOffset+i] = i2c_master_read(I2C_NACK); |
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i2c_master_stop(); |
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} else { |
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i2c_error: // the cable is disconnceted, or something else went wrong |
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i2c_reset_state(); |
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return err; |
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} |
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return 0; |
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} |
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uint8_t matrix_scan(void) |
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void matrix_scan_user(void) |
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{ |
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#ifdef DEBUG_MATRIX_SCAN_RATE |
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matrix_check_scan_rate(); |
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matrix_time_between_scans(); |
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#endif |
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uint8_t ret = _matrix_scan(); |
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if( i2c_transaction() ) { |
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// turn on the indicator led when halves are disconnected |
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TXLED1; |
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error_count++; |
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if (error_count > ERROR_DISCONNECT_COUNT) { |
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// reset other half if disconnected |
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int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; |
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for (int i = 0; i < ROWS_PER_HAND; ++i) { |
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matrix[slaveOffset+i] = 0; |
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} |
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} |
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} else { |
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// turn off the indicator led on no error |
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TXLED0; |
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error_count = 0; |
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} |
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matrix_scan_quantum(); |
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return ret; |
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} |
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void matrix_slave_scan(void) { |
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_matrix_scan(); |
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int offset = (isLeftHand) ? 0 : ROWS_PER_HAND; |
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for (int i = 0; i < ROWS_PER_HAND; ++i) { |
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i2c_slave_buffer[I2C_KEYMAP_START+i] = matrix[offset+i]; |
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} |
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matrix_slave_scan_user(); |
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} |
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inline |
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bool matrix_is_on(uint8_t row, uint8_t col) |
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{ |
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return (matrix[row] & ((matrix_row_t)1<<col)); |
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} |
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inline |
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matrix_row_t matrix_get_row(uint8_t row) |
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{ |
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return matrix[row]; |
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} |
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void matrix_print(void) |
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{ |
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print("\nr/c 0123456789ABCDEF\n"); |
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) { |
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phex(row); print(": "); |
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pbin_reverse16(matrix_get_row(row)); |
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print("\n"); |
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} |
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} |
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uint8_t matrix_key_count(void) |
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{ |
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uint8_t count = 0; |
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) { |
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count += bitpop16(matrix[i]); |
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} |
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return count; |
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} |
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static void init_cols(void) |
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{ |
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for(uint8_t x = 0; x < MATRIX_COLS; x++) { |
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uint8_t pin = col_pins[x]; |
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_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN |
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_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI |
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} |
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} |
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inline |
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static matrix_row_t optimized_col_reader(void) { |
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// Copy this code to split_common/matrix.c, |
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// and call it instead of the unoptimized col_reader. Scan-rate jumps from 1200->1920 |
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// Also remove the sleep_us(30), not necessary for this keyboard. |
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// In usb_descriptor.c, set .PollingIntervalMS = 0x01 |
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#define ROW_SHIFTER ((uint8_t)1) |
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inline static matrix_row_t optimized_col_reader(void) { |
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//MATRIX_COL_PINS { B6, B2, B3, B1, F7, F6, F5, F4 } |
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return (PINB & (1 << 6) ? 0 : (ROW_SHIFTER << 0)) | |
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(PINB & (1 << 2) ? 0 : (ROW_SHIFTER << 1)) | |
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@ -351,26 +61,3 @@ static matrix_row_t optimized_col_reader(void) { |
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} |
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static void select_row(uint8_t row) |
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{ |
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uint8_t pin = row_pins[row]; |
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_SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT |
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_SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW |
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} |
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static void unselect_row(uint8_t row) |
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{ |
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uint8_t pin = row_pins[row]; |
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_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN |
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_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI |
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} |
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static void unselect_rows(void) |
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{ |
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for(uint8_t x = 0; x < ROWS_PER_HAND; x++) { |
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uint8_t pin = row_pins[x]; |
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_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN |
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_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI |
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} |
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} |
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