diff options
Diffstat (limited to 'keyboards/preonic/rev3/matrix.c')
| -rw-r--r-- | keyboards/preonic/rev3/matrix.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/keyboards/preonic/rev3/matrix.c b/keyboards/preonic/rev3/matrix.c new file mode 100644 index 000000000..05f6da71b --- /dev/null +++ b/keyboards/preonic/rev3/matrix.c @@ -0,0 +1,209 @@ +#include <stdint.h> +#include <stdbool.h> +#include <string.h> +#include "hal.h" +#include "timer.h" +#include "wait.h" +#include "printf.h" +#include "backlight.h" +#include "matrix.h" +#include "action.h" +#include "keycode.h" +#include <string.h> + +/* + * col: { B11, B10, B2, B1, A7, B0 } + * row: { A10, A9, A8, B15, C13, C14, C15, A2 } + */ +/* matrix state(1:on, 0:off) */ +static matrix_row_t matrix[MATRIX_ROWS]; +static matrix_col_t matrix_debouncing[MATRIX_COLS]; +static bool debouncing = false; +static uint16_t debouncing_time = 0; + +static uint8_t encoder_state = 0; +static int8_t encoder_value = 0; +static int8_t encoder_LUT[] = { 0, -1, 1, 0, 1, 0, 0, -1, -1, 0, 0, 1, 0, 1, -1, 0 }; + +static bool dip_switch[4] = {0, 0, 0, 0}; + +__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) { + printf("matrix init\n"); + //debug_matrix = true; + + // dip switch setup + palSetPadMode(GPIOB, 14, PAL_MODE_INPUT_PULLUP); + palSetPadMode(GPIOA, 15, PAL_MODE_INPUT_PULLUP); + palSetPadMode(GPIOA, 10, PAL_MODE_INPUT_PULLUP); + palSetPadMode(GPIOB, 9, PAL_MODE_INPUT_PULLUP); + + // encoder setup + palSetPadMode(GPIOB, 12, PAL_MODE_INPUT_PULLUP); + palSetPadMode(GPIOB, 13, PAL_MODE_INPUT_PULLUP); + + encoder_state = (palReadPad(GPIOB, 12) << 0) | (palReadPad(GPIOB, 13) << 1); + + // actual matrix setup + 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(GPIOA, 7, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOB, 0, PAL_MODE_OUTPUT_PUSHPULL); + + palSetPadMode(GPIOA, 10, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOA, 9, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOA, 8, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOB, 15, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 13, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 14, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 15, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOA, 2, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOA, 3, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOA, 6, PAL_MODE_INPUT_PULLDOWN); + + + memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t)); + memset(matrix_debouncing, 0, MATRIX_COLS * sizeof(matrix_col_t)); + + + matrix_init_quantum(); +} + +__attribute__ ((weak)) +void dip_update(uint8_t index, bool active) { } + +__attribute__ ((weak)) +void encoder_update(bool clockwise) { } + +bool last_dip_switch[4] = {0}; + +#ifndef ENCODER_RESOLUTION + #define ENCODER_RESOLUTION 4 +#endif + +uint8_t matrix_scan(void) { + // dip switch + dip_switch[0] = !palReadPad(GPIOB, 14); + dip_switch[1] = !palReadPad(GPIOA, 15); + dip_switch[2] = !palReadPad(GPIOA, 10); + dip_switch[3] = !palReadPad(GPIOB, 9); + for (uint8_t i = 0; i < 4; i++) { + if (last_dip_switch[i] ^ dip_switch[i]) + dip_update(i, dip_switch[i]); + } + memcpy(last_dip_switch, dip_switch, sizeof(&dip_switch)); + + // encoder on B12 and B13 + encoder_state <<= 2; + encoder_state |= (palReadPad(GPIOB, 12) << 0) | (palReadPad(GPIOB, 13) << 1); + encoder_value += encoder_LUT[encoder_state & 0xF]; + if (encoder_value >= ENCODER_RESOLUTION) { + encoder_update(0); + } + if (encoder_value <= -ENCODER_RESOLUTION) { // direction is arbitrary here, but this clockwise + encoder_update(1); + } + encoder_value %= ENCODER_RESOLUTION; + + // actual matrix + for (int col = 0; col < MATRIX_COLS; col++) { + matrix_col_t data = 0; + + // strobe col { B11, B10, B2, B1, A7, B0 } + switch (col) { + 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(GPIOA, 7); break; + case 5: palSetPad(GPIOB, 0); break; + } + + // need wait to settle pin state + wait_us(20); + + // read row data { A10, A9, A8, B15, C13, C14, C15, A2 } + data = ( + (palReadPad(GPIOA, 10) << 0 ) | + (palReadPad(GPIOA, 9) << 1 ) | + (palReadPad(GPIOA, 8) << 2 ) | + (palReadPad(GPIOB, 15) << 3 ) | + (palReadPad(GPIOC, 13) << 4 ) | + (palReadPad(GPIOC, 14) << 5 ) | + (palReadPad(GPIOC, 15) << 6 ) | + (palReadPad(GPIOA, 2) << 7 ) | + (palReadPad(GPIOA, 3) << 8 ) | + (palReadPad(GPIOA, 6) << 9 ) + ); + + // unstrobe col { B11, B10, B2, B1, A7, B0 } + switch (col) { + 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(GPIOA, 7); break; + case 5: palClearPad(GPIOB, 0); break; + } + + if (matrix_debouncing[col] != data) { + matrix_debouncing[col] = data; + debouncing = true; + debouncing_time = timer_read(); + } + } + + if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) { + for (int row = 0; row < MATRIX_ROWS; row++) { + matrix[row] = 0; + for (int col = 0; col < MATRIX_COLS; col++) { + matrix[row] |= ((matrix_debouncing[col] & (1 << row) ? 1 : 0) << col); + } + } + 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) { + printf("\nr/c 01234567\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + printf("%X0: ", row); + matrix_row_t data = matrix_get_row(row); + for (int col = 0; col < MATRIX_COLS; col++) { + if (data & (1<<col)) + printf("1"); + else + printf("0"); + } + printf("\n"); + } +} |