#include <stdint.h> #include <stdbool.h> #include <string.h> #include "hal.h" #include "timer.h" #include "wait.h" #include "print.h" #include "matrix.h" /* * Infinity Pinusage: * 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. * INFINITY PRODUCTION (NO LED) * col: { PTD1, PTD2, PTD3, PTD4, PTD5, PTD6, PTD7 } * row: { PTB0, PTB1, PTB2, PTB3, PTB16, PTB17, PTC4, PTC5, PTD0 } * INFINITY PRODUCTION (WITH LED) * col: { PTD1, PTD2, PTD3, PTD4, PTD5, PTD6, PTD7 } * row: { PTC0, PTC1, PTC2, PTC3, PTC4, PTC5, PTC6, PTC7, PTD0 } */ /* 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) { /* Column(sense) */ palSetPadMode(GPIOD, 1, PAL_MODE_INPUT_PULLDOWN); palSetPadMode(GPIOD, 2, PAL_MODE_INPUT_PULLDOWN); palSetPadMode(GPIOD, 3, PAL_MODE_INPUT_PULLDOWN); palSetPadMode(GPIOD, 4, PAL_MODE_INPUT_PULLDOWN); palSetPadMode(GPIOD, 5, PAL_MODE_INPUT_PULLDOWN); palSetPadMode(GPIOD, 6, PAL_MODE_INPUT_PULLDOWN); palSetPadMode(GPIOD, 7, PAL_MODE_INPUT_PULLDOWN); #ifdef INFINITY_LED /* Row(strobe) */ palSetPadMode(GPIOC, 0, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 1, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 2, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 3, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 4, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 5, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 6, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 7, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOD, 0, PAL_MODE_OUTPUT_PUSHPULL); #else /* Row(strobe) */ palSetPadMode(GPIOB, 0, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOB, 1, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOB, 3, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOB, 16, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOB, 17, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 4, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOC, 5, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOD, 0, PAL_MODE_OUTPUT_PUSHPULL); #endif memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t)); memset(matrix_debouncing, 0, MATRIX_ROWS * sizeof(matrix_row_t)); matrix_init_quantum(); } uint8_t matrix_scan(void) { for (int row = 0; row < MATRIX_ROWS; row++) { matrix_row_t data = 0; #ifdef INFINITY_LED // strobe row switch (row) { case 0: palSetPad(GPIOC, 0); break; case 1: palSetPad(GPIOC, 1); break; case 2: palSetPad(GPIOC, 2); break; case 3: palSetPad(GPIOC, 3); break; case 4: palSetPad(GPIOC, 4); break; case 5: palSetPad(GPIOC, 5); break; case 6: palSetPad(GPIOC, 6); break; case 7: palSetPad(GPIOC, 7); break; case 8: palSetPad(GPIOD, 0); break; } #else // strobe row switch (row) { case 0: palSetPad(GPIOB, 0); break; case 1: palSetPad(GPIOB, 1); break; case 2: palSetPad(GPIOB, 2); break; case 3: palSetPad(GPIOB, 3); break; case 4: palSetPad(GPIOB, 16); break; case 5: palSetPad(GPIOB, 17); break; case 6: palSetPad(GPIOC, 4); break; case 7: palSetPad(GPIOC, 5); break; case 8: palSetPad(GPIOD, 0); break; } #endif // 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 data = (palReadPort(GPIOD)>>1); #ifdef INFINITY_LED // un-strobe row switch (row) { case 0: palClearPad(GPIOC, 0); break; case 1: palClearPad(GPIOC, 1); break; case 2: palClearPad(GPIOC, 2); break; case 3: palClearPad(GPIOC, 3); break; case 4: palClearPad(GPIOC, 4); break; case 5: palClearPad(GPIOC, 5); break; case 6: palClearPad(GPIOC, 6); break; case 7: palClearPad(GPIOC, 7); break; case 8: palClearPad(GPIOD, 0); break; } #else // un-strobe row switch (row) { case 0: palClearPad(GPIOB, 0); break; case 1: palClearPad(GPIOB, 1); break; case 2: palClearPad(GPIOB, 2); break; case 3: palClearPad(GPIOB, 3); break; case 4: palClearPad(GPIOB, 16); break; case 5: palClearPad(GPIOB, 17); break; case 6: palClearPad(GPIOC, 4); break; case 7: palClearPad(GPIOC, 5); break; case 8: palClearPad(GPIOD, 0); break; } #endif 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: "); 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"); } } __attribute__ ((weak)) void matrix_init_kb(void) { matrix_init_user(); } __attribute__ ((weak)) void matrix_scan_kb(void) { matrix_scan_user(); } __attribute__ ((weak)) void matrix_init_user(void) { } __attribute__ ((weak)) void matrix_scan_user(void) { }