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