129 lines
4 KiB
C
129 lines
4 KiB
C
|
#include <stdint.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include "hal.h"
|
||
|
|
#include "timer.h"
|
||
|
|
#include "wait.h"
|
||
|
|
#include "print.h"
|
||
|
|
#include "matrix.h"
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* JM60
|
||
|
|
* Column pins are input with internal pull-down. Row pins are output and strobe with high.
|
||
|
|
* Key is high or 1 when it turns on.
|
||
|
|
*
|
||
|
|
* col: { PTA15, PTC10, PTC11, PTC12, PTD2, PTB3, PTB4, PTB5, PTB6, PTB7, PTB8, PTB9, PTA2, PTA3 }
|
||
|
|
* row: { PTB11, PTB10, PTB2, PTB1, PTB0}
|
||
|
|
*/
|
||
|
|
/* matrix state(1:on, 0:off) */
|
||
|
|
static matrix_row_t matrix[MATRIX_ROWS];
|
||
|
|
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
|
||
|
|
static bool debouncing = false;
|
||
|
|
static uint16_t debouncing_time = 0;
|
||
|
|
|
||
|
|
|
||
|
|
void matrix_init(void)
|
||
|
|
{
|
||
|
|
//debug_matrix = true;
|
||
|
|
/* Column(sense) */
|
||
|
|
palSetPadMode(GPIOA, 15, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOC, 10, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOC, 11, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOC, 12, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOD, 2, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOB, 3, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOB, 4, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOB, 5, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOB, 6, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOB, 7, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOB, 8, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOB, 9, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOA, 2, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
palSetPadMode(GPIOA, 3, PAL_MODE_INPUT_PULLDOWN);
|
||
|
|
|
||
|
|
/* Row(strobe) */
|
||
|
|
palSetPadMode(GPIOB, 11, PAL_MODE_OUTPUT_PUSHPULL);
|
||
|
|
palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL);
|
||
|
|
palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL);
|
||
|
|
palSetPadMode(GPIOB, 1, PAL_MODE_OUTPUT_PUSHPULL);
|
||
|
|
palSetPadMode(GPIOB, 0, PAL_MODE_OUTPUT_PUSHPULL);
|
||
|
|
|
||
|
|
memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t));
|
||
|
|
memset(matrix_debouncing, 0, MATRIX_ROWS * sizeof(matrix_row_t));
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t matrix_scan(void)
|
||
|
|
{
|
||
|
|
for (int row = 0; row < MATRIX_ROWS; row++) {
|
||
|
|
matrix_row_t data = 0;
|
||
|
|
|
||
|
|
// strobe row
|
||
|
|
switch (row) {
|
||
|
|
case 0: palSetPad(GPIOB, 11); break;
|
||
|
|
case 1: palSetPad(GPIOB, 10); break;
|
||
|
|
case 2: palSetPad(GPIOB, 2); break;
|
||
|
|
case 3: palSetPad(GPIOB, 1); break;
|
||
|
|
case 4: palSetPad(GPIOB, 0); break;
|
||
|
|
}
|
||
|
|
|
||
|
|
wait_us(20); // need wait to settle pin state
|
||
|
|
|
||
|
|
// read col data: { PTA15, PTC10, PTC11, PTC12, PTD2, PTB3, PTB4, PTB5, PTB6, PTB7, PTB8, PTB9, PTA2, PTA3 }
|
||
|
|
data = ((palReadPort(GPIOA) & 0x8000UL) >> 15) | // 0
|
||
|
|
((palReadPort(GPIOC) & 0x1C00UL) >> 9) | // 1, 2, 3
|
||
|
|
((palReadPort(GPIOD) & 0x0004UL) << 2) | // 4
|
||
|
|
((palReadPort(GPIOB) & 0x03F8UL) << 2) | // 5, 6, 7, 8, 9, 10, 11
|
||
|
|
((palReadPort(GPIOA) & 0x000CUL) << 10); // 12, 13
|
||
|
|
|
||
|
|
// un-strobe row
|
||
|
|
switch (row) {
|
||
|
|
case 0: palClearPad(GPIOB, 11); break;
|
||
|
|
case 1: palClearPad(GPIOB, 10); break;
|
||
|
|
case 2: palClearPad(GPIOB, 2); break;
|
||
|
|
case 3: palClearPad(GPIOB, 1); break;
|
||
|
|
case 4: palClearPad(GPIOB, 0); break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (matrix_debouncing[row] != data) {
|
||
|
|
matrix_debouncing[row] = data;
|
||
|
|
debouncing = true;
|
||
|
|
debouncing_time = timer_read();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
|
||
|
|
for (int row = 0; row < MATRIX_ROWS; row++) {
|
||
|
|
matrix[row] = matrix_debouncing[row];
|
||
|
|
}
|
||
|
|
debouncing = false;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool matrix_is_on(uint8_t row, uint8_t col)
|
||
|
|
{
|
||
|
|
return (matrix[row] & (1<<col));
|
||
|
|
}
|
||
|
|
|
||
|
|
matrix_row_t matrix_get_row(uint8_t row)
|
||
|
|
{
|
||
|
|
return matrix[row];
|
||
|
|
}
|
||
|
|
|
||
|
|
void matrix_print(void)
|
||
|
|
{
|
||
|
|
xprintf("\nr/c 01234567\n");
|
||
|
|
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
|
||
|
|
xprintf("%X0: ", row);
|
||
|
|
matrix_row_t data = matrix_get_row(row);
|
||
|
|
for (int col = 0; col < MATRIX_COLS; col++) {
|
||
|
|
if (data & (1<<col))
|
||
|
|
xprintf("1");
|
||
|
|
else
|
||
|
|
xprintf("0");
|
||
|
|
}
|
||
|
|
xprintf("\n");
|
||
|
|
}
|
||
|
|
}
|