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222 lines
5.9 KiB
222 lines
5.9 KiB
#include <stdint.h>
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#include <stdbool.h>
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#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 "usb_main.h"
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#include "twi2c.h"
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/* QMK Handwire
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*
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* Column pins are input with internal pull-down.
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* Row pins are output and strobe with high.
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* Key is high or 1 when it turns on.
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*
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* col: { A13, A14, A15, B3, B4, B5, B6 }
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* row: { B10, B2, B1, B0, A7, A6 }
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*/
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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_ROWS];
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static bool debouncing = false;
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static uint16_t debouncing_time = 0;
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static bool master = false;
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static bool right_hand = false;
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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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// C13 is connected to VCC on the right hand
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palSetPadMode(GPIOC, 13, PAL_MODE_INPUT);
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wait_us(20);
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right_hand = palReadPad(GPIOC, 13);
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// if USB is active, this is the master
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// master = usbGetDriverStateI(&USB_DRIVER) == USB_ACTIVE;
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master = right_hand;
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if (master) {
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twi2c_master_init();
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} else {
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twi2c_slave_init();
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}
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/* Column(sense) */
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palSetPadMode(GPIOA, 13, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 14, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 15, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOB, 3, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOB, 4, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOB, 5, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOB, 6, PAL_MODE_INPUT_PULLDOWN);
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/* Row(strobe) */
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palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 1, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 0, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 7, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 6, PAL_MODE_OUTPUT_PUSHPULL);
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memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t));
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memset(matrix_debouncing, 0, MATRIX_ROWS * sizeof(matrix_row_t));
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// palClearPad(GPIOB, 7); // Turn off capslock
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matrix_init_quantum();
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}
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matrix_row_t matrix_scan_common(uint8_t row) {
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matrix_row_t data;
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// strobe row { A6, A7, B0, B1, B2, B10 }
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switch (row) {
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case 5: palSetPad(GPIOA, 6); break;
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case 4: palSetPad(GPIOA, 7); break;
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case 3: palSetPad(GPIOB, 0); break;
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case 2: palSetPad(GPIOB, 1); break;
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case 1: palSetPad(GPIOB, 2); break;
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case 0: palSetPad(GPIOB, 10); 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 col data { B6, B5, B4, B3, A15, A14, A13 }
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data = (
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(palReadPad(GPIOB, 6) << 6 ) |
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(palReadPad(GPIOB, 5) << 5 ) |
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(palReadPad(GPIOB, 4) << 4 ) |
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(palReadPad(GPIOB, 3) << 3 ) |
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(palReadPad(GPIOA, 15) << 2 ) |
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(palReadPad(GPIOA, 14) << 1 ) |
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(palReadPad(GPIOA, 13) << 0 )
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);
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// unstrobe row { A6, A7, B0, B1, B2, B10 }
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switch (row) {
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case 5: palClearPad(GPIOA, 6); break;
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case 4: palClearPad(GPIOA, 7); break;
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case 3: palClearPad(GPIOB, 0); break;
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case 2: palClearPad(GPIOB, 1); break;
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case 1: palClearPad(GPIOB, 2); break;
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case 0: palClearPad(GPIOB, 10); break;
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}
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return data;
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}
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const uint8_t command[2] = { 0x01, 0x00 };
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uint8_t other_matrix[MATRIX_ROWS] = { 0 };
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void matrix_scan_master(void) {
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msg_t resp;
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// resp = twi2c_master_send(slaveI2Caddress/2, command, 2, other_matrix, US2ST(100));
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resp = i2cMasterTransmitTimeout(&I2C_DRIVER, slaveI2Caddress/2, command, 2, other_matrix, MATRIX_ROWS / 2, MS2ST(100));
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// resp = i2cMasterReceiveTimeout(&I2C_DRIVER, slaveI2Caddress/2, other_matrix, MATRIX_ROWS / 2, US2ST(100));
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// printf("%x\n", resp);
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// if (resp != MSG_OK) {
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// for (i = 0; i < MATRIX_ROWS / 2; i++) {
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// resp = i2cMasterReceiveTimeout(&I2C_DRIVER, slaveI2Caddress/2, other_matrix, MATRIX_ROWS / 2, US2ST(100));
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// }
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// }
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if (resp == MSG_OK) {
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uint8_t * matrix_pointer;
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if (right_hand) {
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matrix_pointer = matrix;
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} else {
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matrix_pointer = matrix + (MATRIX_ROWS / 2);
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}
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memcpy(matrix_pointer, other_matrix, MATRIX_ROWS / 2);
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}
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}
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uint8_t matrix_scan(void) {
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for (int row = 0; row < MATRIX_ROWS; row++) {
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matrix_row_t data = 0;
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if ((right_hand && row >= 6) || (!right_hand && row < 6)) {
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data = matrix_scan_common(row % 6);
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}
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if (matrix_debouncing[row] != data) {
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matrix_debouncing[row] = 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] = matrix_debouncing[row];
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}
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debouncing = false;
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}
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if (master) {
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matrix_scan_master();
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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_copy(matrix_row_t * copy) {
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uint8_t * matrix_pointer;
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if (right_hand) {
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matrix_pointer = matrix + (MATRIX_ROWS / 2);
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} else {
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matrix_pointer = matrix;
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}
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memcpy(copy, matrix_pointer, MATRIX_ROWS / 2);
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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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