229 lines
7.2 KiB
C
229 lines
7.2 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 Christopher Courtney, aka Drashna Jael're (@drashna) <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 "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, A6, A7, B0 } inputs
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*/
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/* matrix state(1:on, 0:off) */
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extern matrix_row_t matrix[MATRIX_ROWS]; // debounced values
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extern matrix_row_t raw_matrix[MATRIX_ROWS]; // raw values
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static matrix_row_t raw_matrix_right[MATRIX_COLS];
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#define ROWS_PER_HAND (MATRIX_ROWS / 2)
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#ifndef MOONLANDER_I2C_TIMEOUT
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# define MOONLANDER_I2C_TIMEOUT 100
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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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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, MOONLANDER_I2C_TIMEOUT)) {
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dprintf("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, MOONLANDER_I2C_TIMEOUT)) {
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dprintf("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_custom(void) {
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dprintf("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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mcp23018_init();
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}
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bool matrix_scan_custom(matrix_row_t current_matrix[]) {
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bool changed = false;
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// Try to re-init 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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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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case 6: break; // Left hand has 6 rows
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}
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// right side
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if (mcp23018_initd) {
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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, MOONLANDER_I2C_TIMEOUT)) {
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dprintf("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, MOONLANDER_I2C_TIMEOUT)) {
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dprintf("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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} else {
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data = 0;
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}
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if (raw_matrix_right[row] != data) {
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raw_matrix_right[row] = data;
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changed = true;
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}
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// left side
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if (row < ROWS_PER_HAND) {
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// i2c comm incur enough wait time
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if (!mcp23018_initd) {
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// need wait to settle pin state
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matrix_io_delay();
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}
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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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case 6: break;
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}
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if (current_matrix[row] != data) {
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current_matrix[row] = data;
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changed = true;
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}
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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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current_matrix[11 - row] = 0;
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for (uint8_t col = 0; col < MATRIX_COLS; col++) {
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current_matrix[11 - row] |= ((raw_matrix_right[6 - col] & (1 << row) ? 1 : 0) << col);
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}
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}
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return changed;
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}
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// DO NOT REMOVE
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// Needed for proper wake/sleep
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void matrix_power_up(void) {
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bool temp_launching = is_launching;
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matrix_init_custom();
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is_launching = temp_launching;
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if (!is_launching) {
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ML_LED_1(false);
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ML_LED_2(false);
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ML_LED_3(false);
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ML_LED_4(false);
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ML_LED_5(false);
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ML_LED_6(false);
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}
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// initialize matrix state: all keys off
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for (uint8_t i=0; i < MATRIX_ROWS; i++) {
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matrix[i] = 0;
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}
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}
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