diff options
Diffstat (limited to 'keyboards/k_type/matrix.c')
| -rw-r--r-- | keyboards/k_type/matrix.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/keyboards/k_type/matrix.c b/keyboards/k_type/matrix.c new file mode 100644 index 000000000..7f230bebb --- /dev/null +++ b/keyboards/k_type/matrix.c @@ -0,0 +1,138 @@ +//#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 "debug.h" + +/* 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(GPIOD, 5, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOD, 6, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOD, 7, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 1, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 2, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 3, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 4, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 5, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 6, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 7, PAL_MODE_INPUT_PULLDOWN); + + /* Row(strobe) */ + palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOB, 3, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOB, 18, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOB, 19, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOC, 0, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOC, 8, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOC, 9, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOD, 0, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOD, 1, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOD, 4, PAL_MODE_OUTPUT_PUSHPULL); + + memset(matrix, 0, MATRIX_ROWS); + memset(matrix_debouncing, 0, MATRIX_ROWS); + + matrix_init_quantum(); +} + +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, 2); break; + case 1: palSetPad(GPIOB, 3); break; + case 2: palSetPad(GPIOB, 18); break; + case 3: palSetPad(GPIOB, 19); break; + case 4: palSetPad(GPIOC, 0); break; + case 5: palSetPad(GPIOC, 8); break; + case 6: palSetPad(GPIOC, 9); break; + case 7: palSetPad(GPIOD, 0); break; + case 8: palSetPad(GPIOD, 1); break; + case 9: palSetPad(GPIOD, 4); break; + } + + // need wait to settle pin state + // if you wait too short, or have a too high update rate + // the keyboard might freeze, or there might not be enough + // processing power to update the LCD screen properly. + // 20us, or two ticks at 100000Hz seems to be OK + wait_us(20); + + // read col data: { PTD5, PTD6, PTD7, PTC1, PTC2, PTC3, PTC4, PTC5, PTC6, PTC7 } + data = ((palReadPort(GPIOC) & 0xFEUL) << 2) | + ((palReadPort(GPIOD) & 0xE0UL) >> 5); + + // un-strobe row + switch (row) { + case 0: palClearPad(GPIOB, 2); break; + case 1: palClearPad(GPIOB, 3); break; + case 2: palClearPad(GPIOB, 18); break; + case 3: palClearPad(GPIOB, 19); break; + case 4: palClearPad(GPIOC, 0); break; + case 5: palClearPad(GPIOC, 8); break; + case 6: palClearPad(GPIOC, 9); break; + case 7: palClearPad(GPIOD, 0); break; + case 8: palClearPad(GPIOD, 1); break; + case 9: palClearPad(GPIOD, 4); 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; + } + + matrix_scan_quantum(); + 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("%02X: ", 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"); + } + + wait_ms(50); +} |