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- #include <stdint.h>
- #include <stdbool.h>
- #include <string.h>
- #include <hal.h>
- #include "timer.h"
- #include "wait.h"
- #include "print.h"
- #include "matrix.h"
- #include "i2c_master.h"
- #include QMK_KEYBOARD_H
-
- #ifndef DEBOUNCE
- #define DEBOUNCE 10
- #endif
-
- static uint8_t mcp23017_reset_loop = 0;
-
- volatile matrix_row_t matrix[MATRIX_ROWS];
- volatile matrix_row_t raw_matrix[MATRIX_ROWS];
- volatile uint8_t debounce_matrix[MATRIX_ROWS * MATRIX_COLS];
-
- static matrix_row_t read_cols(uint8_t row);
-
- static void init_cols(void);
-
- static void unselect_rows(void);
-
- static void select_row(uint8_t row);
-
- static void init_rows(void);
-
- __attribute__((weak)) void matrix_init_user(void) {}
-
- __attribute__((weak)) void matrix_scan_user(void) {}
-
- __attribute__((weak)) void matrix_init_kb(void) {
- matrix_init_user();
- }
-
- __attribute__((weak)) void matrix_scan_kb(void) {
- matrix_scan_user();
- }
-
- void matrix_init(void) {
- mcp23017_status = init_mcp23017();
- (void) mcp23017_reset_loop;
- init_rows();
- unselect_rows();
- init_cols();
-
-
- for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
- matrix[i] = 0;
- raw_matrix[i] = 0;
- for (uint8_t j = 0; j < MATRIX_COLS; ++j) {
- debounce_matrix[i * MATRIX_COLS + j] = 0;
- }
- }
- matrix_init_quantum();
- }
-
- void matrix_power_up(void) {
- mcp23017_status = init_mcp23017();
-
- init_rows();
- unselect_rows();
- init_cols();
-
- for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
- matrix[i] = 0;
- }
- }
-
- matrix_row_t debounce_mask(matrix_row_t rawcols, uint8_t row) {
- matrix_row_t result = 0;
- matrix_row_t change = rawcols ^raw_matrix[row];
- raw_matrix[row] = rawcols;
- for (uint8_t i = 0; i < MATRIX_COLS; ++i) {
- if (debounce_matrix[row * MATRIX_COLS + i]) {
- --debounce_matrix[row * MATRIX_COLS + i];
- } else {
- result |= (1 << i);
- }
- if (change & (1 << i)) {
- debounce_matrix[row * MATRIX_COLS + i] = DEBOUNCE;
- }
- }
- return result;
- }
-
- matrix_row_t debounce_read_cols(uint8_t row) {
- // Read the row without debouncing filtering and store it for later usage.
- matrix_row_t cols = read_cols(row);
- // Get the Debounce mask.
- matrix_row_t mask = debounce_mask(cols, row);
- // debounce the row and return the result.
- return (cols & mask) | (matrix[row] & ~mask);;
- }
-
- uint8_t matrix_scan(void) {
- if (mcp23017_status) {
- if (++mcp23017_reset_loop == 0) {
- mcp23017_status = init_mcp23017();
- if (!mcp23017_status) {
- ergodox_blink_all_leds();
- }
- }
- }
- for (uint8_t i = 0; i < MATRIX_ROWS_PER_SIDE; i++) {
- select_row(i);
- select_row(i + MATRIX_ROWS_PER_SIDE);
-
- matrix[i] = debounce_read_cols(i);
- matrix[i + MATRIX_ROWS_PER_SIDE] = debounce_read_cols(i + MATRIX_ROWS_PER_SIDE);
-
- unselect_rows();
- }
- matrix_scan_quantum();
- return 0;
- }
-
- bool matrix_is_modified(void) {
- return true;
- }
-
- inline
- bool matrix_is_on(uint8_t row, uint8_t col) {
- return (matrix[row] & (1 << col));
- }
-
- inline
- matrix_row_t matrix_get_row(uint8_t row) {
- return matrix[row];
- }
-
- void matrix_print(void) {
- }
-
- static matrix_row_t read_cols(uint8_t row) {
- if (row < MATRIX_ROWS_PER_SIDE) {
- uint8_t data = 0xFF;
- if (!mcp23017_status) {
- uint8_t regAddr = I2C_GPIOB;
- mcp23017_status = i2c_readReg(I2C_ADDR, regAddr, &data, 1, 10);
- }
- if (mcp23017_status) {
- return 0;
- }
- return (~data) & 0x3F;
- } else {
- uint8_t data_p = (GPIOB -> IDR);
- uint8_t data = data_p;
- return ((~data) & 0x3f);
- }
- }
-
- static void init_cols(void) {
- palSetPadMode(GPIOB, 0, PAL_MODE_INPUT_PULLUP);
- palSetPadMode(GPIOB, 1, PAL_MODE_INPUT_PULLUP);
- palSetPadMode(GPIOB, 2, PAL_MODE_INPUT_PULLUP);
- palSetPadMode(GPIOB, 3, PAL_MODE_INPUT_PULLUP);
- palSetPadMode(GPIOB, 4, PAL_MODE_INPUT_PULLUP);
- palSetPadMode(GPIOB, 5, PAL_MODE_INPUT_PULLUP);
- }
-
- static void init_rows(void) {
- palSetPadMode(GPIOB, 8, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPadMode(GPIOB, 9, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPadMode(GPIOB, 11, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPadMode(GPIOB, 12, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPadMode(GPIOB, 13, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPadMode(GPIOB, 14, PAL_MODE_OUTPUT_PUSHPULL);
- }
-
- static void unselect_rows(void) {
- GPIOB->BSRR = 0b1111111 << 8;
- }
-
- static void select_row(uint8_t row) {
- if (row < MATRIX_ROWS_PER_SIDE) {
- if (!mcp23017_status) {
- uint8_t data = (0xFF & ~(1 << row));
- mcp23017_status = i2c_writeReg(I2C_ADDR, I2C_GPIOA, &data, 1, 10);
- }
- } else {
- GPIOB->BRR = 0x1 << (row+1);
- }
- }
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