196 lines
6.3 KiB
C
196 lines
6.3 KiB
C
#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 "printf.h"
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#include "backlight.h"
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#include "matrix.h"
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#include "action.h"
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#include "keycode.h"
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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_COLS];
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static bool debouncing = false;
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static uint16_t debouncing_time = 0;
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static uint8_t encoder_state = 0;
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static int8_t encoder_value = 0;
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static int8_t encoder_LUT[] = { 0, -1, 1, 0, 1, 0, 0, -1, -1, 0, 0, 1, 0, 1, -1, 0 };
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__attribute__ ((weak))
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void matrix_init_user(void) {}
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__attribute__ ((weak))
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void matrix_scan_user(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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void matrix_init(void) {
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printf("matrix init\n");
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//debug_matrix = true;
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// encoder setup
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palSetPadMode(GPIOB, 13, PAL_MODE_INPUT_PULLUP);
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palSetPadMode(GPIOB, 14, PAL_MODE_INPUT_PULLUP);
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encoder_state = (palReadPad(GPIOB, 13) << 0) | (palReadPad(GPIOB, 14) << 1);
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// actual matrix setup
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palSetPadMode(GPIOB, 8, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 0, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 1, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 2, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 0, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 3, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 1, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 6, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 7, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 12, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOC, 13, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 11, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 9, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOC, 15, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOC, 14, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 10, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 9, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 8, PAL_MODE_INPUT_PULLDOWN);
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memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t));
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memset(matrix_debouncing, 0, MATRIX_COLS * sizeof(matrix_row_t));
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matrix_init_quantum();
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}
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__attribute__ ((weak))
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void encoder_update(bool clockwise) { }
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#ifndef ENCODER_RESOLUTION
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#define ENCODER_RESOLUTION 4
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#endif
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uint8_t matrix_scan(void) {
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// encoder on B13 and B14
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encoder_state <<= 2;
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encoder_state |= (palReadPad(GPIOB, 13) << 0) | (palReadPad(GPIOB, 14) << 1);
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encoder_value += encoder_LUT[encoder_state & 0xF];
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if (encoder_value >= ENCODER_RESOLUTION) {
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encoder_update(0);
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}
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if (encoder_value <= -ENCODER_RESOLUTION) { // direction is arbitrary here, but this clockwise
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encoder_update(1);
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}
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encoder_value %= ENCODER_RESOLUTION;
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// actual matrix
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for (int col = 0; col < MATRIX_COLS; col++) {
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matrix_row_t data = 0;
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// strobe col { PB8, PB2, PB10, PA0, PA1, PA2, PB0, PA3, PB1, PA6, PA7, PB1, PA6, PA7, PB12, PC3, PB11, }
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switch (col) {
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case 0: palSetPad(GPIOB, 8); break;
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case 1: palSetPad(GPIOB, 2); break;
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case 2: palSetPad(GPIOB, 10); break;
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case 3: palSetPad(GPIOA, 0); break;
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case 4: palSetPad(GPIOA, 1); break;
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case 5: palSetPad(GPIOA, 2); break;
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case 6: palSetPad(GPIOB, 0); break;
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case 7: palSetPad(GPIOA, 3); break;
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case 8: palSetPad(GPIOB, 1); break;
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case 9: palSetPad(GPIOA, 6); break;
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case 10: palSetPad(GPIOA, 7); break;
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case 11: palSetPad(GPIOB, 12); break;
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case 12: palSetPad(GPIOC, 13); break;
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case 13: palSetPad(GPIOB, 11); break;
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case 14: palSetPad(GPIOB, 9); break;
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}
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// need wait to settle pin state
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wait_us(20);
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// read row data { PC15, PC14, PA10, PA9, PA8 }
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data = (
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(palReadPad(GPIOC, 15) << 0 ) |
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(palReadPad(GPIOC, 14) << 1 ) |
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(palReadPad(GPIOA, 10) << 2 ) |
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(palReadPad(GPIOA, 9) << 3 ) |
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(palReadPad(GPIOA, 8) << 4 )
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);
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// unstrobe col { PB8, PB2, PB10, PA0, PA1, PA2, PB0, PA3, PB1, PA6, PA7, PB1, PA6, PA7, PB12, PC3, PB11, }
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switch (col) {
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case 0: palClearPad(GPIOB, 8); break;
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case 1: palClearPad(GPIOB, 2); break;
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case 2: palClearPad(GPIOB, 10); break;
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case 3: palClearPad(GPIOA, 0); break;
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case 4: palClearPad(GPIOA, 1); break;
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case 5: palClearPad(GPIOA, 2); break;
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case 6: palClearPad(GPIOB, 0); break;
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case 7: palClearPad(GPIOA, 3); break;
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case 8: palClearPad(GPIOB, 1); break;
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case 9: palClearPad(GPIOA, 6); break;
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case 10: palClearPad(GPIOA, 7); break;
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case 11: palClearPad(GPIOB, 12); break;
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case 12: palClearPad(GPIOC, 13); break;
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case 13: palClearPad(GPIOB, 11); break;
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case 14: palClearPad(GPIOB, 9); break;
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}
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if (matrix_debouncing[col] != data) {
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matrix_debouncing[col] = data;
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debouncing = true;
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debouncing_time = timer_read();
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}
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}
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if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
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for (int row = 0; row < MATRIX_ROWS; row++) {
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matrix[row] = 0;
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for (int col = 0; col < MATRIX_COLS; col++) {
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matrix[row] |= ((matrix_debouncing[col] & (1 << row) ? 1 : 0) << col);
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}
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}
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debouncing = false;
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}
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matrix_scan_quantum();
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return 1;
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}
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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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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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printf("\nr/c 01234567\n");
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
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printf("%X0: ", row);
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matrix_row_t data = matrix_get_row(row);
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for (int col = 0; col < MATRIX_COLS; col++) {
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if (data & (1<<col))
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printf("1");
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else
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printf("0");
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}
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printf("\n");
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}
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}
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