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266 lines
7.5 KiB
266 lines
7.5 KiB
/*
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Copyright 2018 Jack Humbert <jack.humb@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#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 "action.h"
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#include "keycode.h"
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#include <string.h>
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#include "moonlander.h"
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#include "i2c_master.h"
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/*
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#define MATRIX_ROW_PINS { B10, B11, B12, B13, B14, B15 } outputs
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#define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6 } inputs
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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[6];
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static matrix_row_t matrix_debouncing_right[MATRIX_COLS];
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static bool debouncing = false;
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static uint16_t debouncing_time = 0;
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static bool debouncing_right = false;
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static uint16_t debouncing_time_right = 0;
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extern bool mcp23018_leds[3];
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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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bool mcp23018_initd = false;
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uint8_t mcp23018_tx[3];
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uint8_t mcp23018_rx[1];
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void mcp23018_init(void) {
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i2c_init();
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i2c_start(MCP23018_DEFAULT_ADDRESS << 1);
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// #define MCP23_ROW_PINS { GPB5, GBP4, GBP3, GBP2, GBP1, GBP0 } outputs
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// #define MCP23_COL_PINS { GPA0, GBA1, GBA2, GBA3, GBA4, GBA5, GBA6 } inputs
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mcp23018_tx[0] = 0x00; // IODIRA
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mcp23018_tx[1] = 0b00000000; // A is output
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mcp23018_tx[2] = 0b00111111; // B is inputs
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if (MSG_OK != i2c_transmit(MCP23018_DEFAULT_ADDRESS << 1,
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mcp23018_tx, 3, 100
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)) {
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printf("error hori\n");
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} else {
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mcp23018_tx[0] = 0x0C; // GPPUA
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mcp23018_tx[1] = 0b10000000; // A is not pulled-up
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mcp23018_tx[2] = 0b11111111; // B is pulled-up
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if (MSG_OK != i2c_transmit(MCP23018_DEFAULT_ADDRESS << 1,
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mcp23018_tx, 3, 100
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)) {
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printf("error hori\n");
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} else {
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mcp23018_initd = true;
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}
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}
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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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// outputs
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palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 11, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 12, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 13, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 14, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOB, 15, PAL_MODE_OUTPUT_PUSHPULL);
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// inputs
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palSetPadMode(GPIOA, 0, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 1, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 2, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 3, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 6, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOA, 7, PAL_MODE_INPUT_PULLDOWN);
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palSetPadMode(GPIOB, 0, PAL_MODE_INPUT_PULLDOWN);
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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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mcp23018_init();
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matrix_init_quantum();
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}
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uint8_t matrix_scan(void) {
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matrix_row_t data = 0;
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// actual matrix
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for (int row = 0; row < 6; row++) {
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// strobe row
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switch (row) {
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case 0: palSetPad(GPIOB, 10); break;
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case 1: palSetPad(GPIOB, 11); break;
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case 2: palSetPad(GPIOB, 12); break;
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case 3: palSetPad(GPIOB, 13); break;
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case 4: palSetPad(GPIOB, 14); break;
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case 5: palSetPad(GPIOB, 15); 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
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data = (
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(palReadPad(GPIOA, 0) << 0 ) |
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(palReadPad(GPIOA, 1) << 1 ) |
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(palReadPad(GPIOA, 2) << 2 ) |
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(palReadPad(GPIOA, 3) << 3 ) |
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(palReadPad(GPIOA, 6) << 4 ) |
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(palReadPad(GPIOA, 7) << 5 ) |
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(palReadPad(GPIOB, 0) << 6 )
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);
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// unstrobe row
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switch (row) {
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case 0: palClearPad(GPIOB, 10); break;
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case 1: palClearPad(GPIOB, 11); break;
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case 2: palClearPad(GPIOB, 12); break;
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case 3: palClearPad(GPIOB, 13); break;
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case 4: palClearPad(GPIOB, 14); break;
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case 5: palClearPad(GPIOB, 15); break;
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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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for (int row = 0; row < 7; row++) {
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// right side
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if (!mcp23018_initd) {
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printf("trying to init right\n");
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mcp23018_init();
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}
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// #define MCP23_ROW_PINS { GPB5, GBP4, GBP3, GBP2, GBP1, GBP0 } outputs
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// #define MCP23_COL_PINS { GPA0, GBA1, GBA2, GBA3, GBA4, GBA5, GBA6 } inputs
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// select row
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mcp23018_tx[0] = 0x12; // GPIOA
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mcp23018_tx[1] = (0b01111111 & ~(1<<(row))) | ((uint8_t)mcp23018_leds[2] << 7); // activate row
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mcp23018_tx[2] = ((uint8_t)mcp23018_leds[1] << 6) | ((uint8_t)mcp23018_leds[0] << 7); // activate row
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if (MSG_OK != i2c_transmit(MCP23018_DEFAULT_ADDRESS << 1,
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mcp23018_tx, 3, 100
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)) {
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printf("error hori\n");
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}
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// read col
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mcp23018_tx[0] = 0x13; // GPIOB
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if (MSG_OK != i2c_transmit_receive(MCP23018_DEFAULT_ADDRESS << 1,
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mcp23018_tx, 1,
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mcp23018_rx, 1
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)) {
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printf("error vert\n");
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}
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data = ~(mcp23018_rx[0] & 0b00111111);
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// data = 0x01;
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if (matrix_debouncing_right[row] != data) {
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matrix_debouncing_right[row] = data;
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debouncing_right = true;
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debouncing_time_right = timer_read();
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}
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}
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if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCING_DELAY) {
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for (int row = 0; row < 6; 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 (debouncing_right && timer_elapsed(debouncing_time_right) > DEBOUNCING_DELAY) {
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for (int row = 0; row < 6; row++) {
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matrix[11 - row] = 0;
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for (int col = 0; col < MATRIX_COLS; col++) {
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matrix[11 - row] |= ((matrix_debouncing_right[6 - col] & (1 << row) ? 1 : 0) << col);
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}
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}
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debouncing_right = false;
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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_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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