271 lines
8.3 KiB
C
271 lines
8.3 KiB
C
/* Copyright 2020 ZSA Technology Labs, Inc <@zsa>
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* Copyright 2020 Jack Humbert <jack.humb@gmail.com>
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* Copyright 2020 Drashna Jael're <drashna@live.com>
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*
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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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*
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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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*
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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 "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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#include "debounce.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, A6, A7, B0 } 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[MATRIX_ROWS];
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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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#define ROWS_PER_HAND (MATRIX_ROWS / 2)
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#ifndef MATRIX_IO_DELAY
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# define MATRIX_IO_DELAY 20
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#endif
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extern bool mcp23018_leds[3];
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extern bool is_launching;
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__attribute__((weak)) void matrix_init_user(void) {}
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__attribute__((weak)) void matrix_scan_user(void) {}
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__attribute__((weak)) void matrix_init_kb(void) { matrix_init_user(); }
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__attribute__((weak)) void matrix_scan_kb(void) { matrix_scan_user(); }
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__attribute__((weak)) void matrix_io_delay(void) { wait_us(MATRIX_IO_DELAY); }
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bool mcp23018_initd = false;
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static uint8_t mcp23018_reset_loop;
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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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// #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, mcp23018_tx, 3, I2C_TIMEOUT)) {
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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, mcp23018_tx, 3, I2C_TIMEOUT)) {
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printf("error hori\n");
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} else {
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mcp23018_initd = is_launching = 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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setPinOutput(B10);
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setPinOutput(B11);
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setPinOutput(B12);
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setPinOutput(B13);
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setPinOutput(B14);
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setPinOutput(B15);
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// inputs
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setPinInputLow(A0);
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setPinInputLow(A1);
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setPinInputLow(A2);
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setPinInputLow(A3);
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setPinInputLow(A6);
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setPinInputLow(A7);
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setPinInputLow(B0);
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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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memset(matrix_debouncing_right, 0, MATRIX_COLS * 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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bool changed = false;
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matrix_row_t data = 0;
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// actual matrix
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for (uint8_t row = 0; row < ROWS_PER_HAND; row++) {
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// strobe row
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switch (row) {
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case 0: writePinHigh(B10); break;
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case 1: writePinHigh(B11); break;
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case 2: writePinHigh(B12); break;
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case 3: writePinHigh(B13); break;
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case 4: writePinHigh(B14); break;
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case 5: writePinHigh(B15); break;
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}
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// need wait to settle pin state
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matrix_io_delay();
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// read col data
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data = (
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(readPin(A0) << 0 ) |
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(readPin(A1) << 1 ) |
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(readPin(A2) << 2 ) |
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(readPin(A3) << 3 ) |
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(readPin(A6) << 4 ) |
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(readPin(A7) << 5 ) |
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(readPin(B0) << 6 )
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);
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// unstrobe row
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switch (row) {
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case 0: writePinLow(B10); break;
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case 1: writePinLow(B11); break;
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case 2: writePinLow(B12); break;
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case 3: writePinLow(B13); break;
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case 4: writePinLow(B14); break;
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case 5: writePinLow(B15); 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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changed = true;
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}
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}
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for (uint8_t row = 0; row <= ROWS_PER_HAND; row++) {
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// right side
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if (!mcp23018_initd) {
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if (++mcp23018_reset_loop == 0) {
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// if (++mcp23018_reset_loop >= 1300) {
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// since mcp23018_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans
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// this will be approx bit more frequent than once per second
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print("trying to reset mcp23018\n");
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mcp23018_init();
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if (!mcp23018_initd) {
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print("left side not responding\n");
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} else {
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print("left side attached\n");
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#ifdef RGB_MATRIX_ENABLE
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rgb_matrix_init();
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#endif
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}
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}
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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, mcp23018_tx, 3, I2C_TIMEOUT)) {
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printf("error hori\n");
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mcp23018_initd = false;
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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_readReg(MCP23018_DEFAULT_ADDRESS << 1, mcp23018_tx[0], &mcp23018_rx[0], 1, I2C_TIMEOUT)) {
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printf("error vert\n");
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mcp23018_initd = false;
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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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changed = true;
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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 < ROWS_PER_HAND; 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) > DEBOUNCE && mcp23018_initd) {
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for (int row = 0; row < ROWS_PER_HAND; 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 (uint8_t)changed;
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}
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bool matrix_is_on(uint8_t row, uint8_t col) { return (matrix[row] & (1 << col)); }
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matrix_row_t matrix_get_row(uint8_t row) { return matrix[row]; }
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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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