From 220b1c9db40d95271dcdd8d8050e46a2a3143c65 Mon Sep 17 00:00:00 2001 From: Drashna Jaelre Date: Sat, 22 Aug 2020 07:44:42 -0700 Subject: [Keyboard] Add ZSA Moonlander (#9853) --- keyboards/moonlander/matrix.c | 270 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 270 insertions(+) create mode 100644 keyboards/moonlander/matrix.c (limited to 'keyboards/moonlander/matrix.c') diff --git a/keyboards/moonlander/matrix.c b/keyboards/moonlander/matrix.c new file mode 100644 index 0000000000..774b01187d --- /dev/null +++ b/keyboards/moonlander/matrix.c @@ -0,0 +1,270 @@ +/* Copyright 2020 ZSA Technology Labs, Inc <@zsa> + * Copyright 2020 Jack Humbert + * Copyright 2020 Drashna Jael're + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . +*/ + + + +#include +#include +#include +#include "hal.h" +#include "timer.h" +#include "wait.h" +#include "printf.h" +#include "matrix.h" +#include "action.h" +#include "keycode.h" +#include +#include "moonlander.h" +#include "i2c_master.h" +#include "debounce.h" + +/* +#define MATRIX_ROW_PINS { B10, B11, B12, B13, B14, B15 } outputs +#define MATRIX_COL_PINS { A0, A1, A2, A3, A6, A7, B0 } inputs + */ +/* matrix state(1:on, 0:off) */ +static matrix_row_t matrix[MATRIX_ROWS]; +static matrix_row_t matrix_debouncing[MATRIX_ROWS]; +static matrix_row_t matrix_debouncing_right[MATRIX_COLS]; +static bool debouncing = false; +static uint16_t debouncing_time = 0; +static bool debouncing_right = false; +static uint16_t debouncing_time_right = 0; + +#define ROWS_PER_HAND (MATRIX_ROWS / 2) + +#ifndef MATRIX_IO_DELAY +# define MATRIX_IO_DELAY 20 +#endif + +extern bool mcp23018_leds[3]; +extern bool is_launching; + +__attribute__((weak)) void matrix_init_user(void) {} + +__attribute__((weak)) void matrix_scan_user(void) {} + +__attribute__((weak)) void matrix_init_kb(void) { matrix_init_user(); } + +__attribute__((weak)) void matrix_scan_kb(void) { matrix_scan_user(); } + +__attribute__((weak)) void matrix_io_delay(void) { wait_us(MATRIX_IO_DELAY); } + +bool mcp23018_initd = false; +static uint8_t mcp23018_reset_loop; + +uint8_t mcp23018_tx[3]; +uint8_t mcp23018_rx[1]; + +void mcp23018_init(void) { + i2c_init(); + + // #define MCP23_ROW_PINS { GPB5, GBP4, GBP3, GBP2, GBP1, GBP0 } outputs + // #define MCP23_COL_PINS { GPA0, GBA1, GBA2, GBA3, GBA4, GBA5, GBA6 } inputs + + mcp23018_tx[0] = 0x00; // IODIRA + mcp23018_tx[1] = 0b00000000; // A is output + mcp23018_tx[2] = 0b00111111; // B is inputs + + if (MSG_OK != i2c_transmit(MCP23018_DEFAULT_ADDRESS << 1, mcp23018_tx, 3, I2C_TIMEOUT)) { + printf("error hori\n"); + } else { + mcp23018_tx[0] = 0x0C; // GPPUA + mcp23018_tx[1] = 0b10000000; // A is not pulled-up + mcp23018_tx[2] = 0b11111111; // B is pulled-up + + if (MSG_OK != i2c_transmit(MCP23018_DEFAULT_ADDRESS << 1, mcp23018_tx, 3, I2C_TIMEOUT)) { + printf("error hori\n"); + } else { + mcp23018_initd = is_launching = true; + } + } +} + +void matrix_init(void) { + printf("matrix init\n"); + // debug_matrix = true; + + // outputs + setPinOutput(B10); + setPinOutput(B11); + setPinOutput(B12); + setPinOutput(B13); + setPinOutput(B14); + setPinOutput(B15); + + // inputs + setPinInputLow(A0); + setPinInputLow(A1); + setPinInputLow(A2); + setPinInputLow(A3); + setPinInputLow(A6); + setPinInputLow(A7); + setPinInputLow(B0); + + memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t)); + memset(matrix_debouncing, 0, MATRIX_ROWS * sizeof(matrix_row_t)); + memset(matrix_debouncing_right, 0, MATRIX_COLS * sizeof(matrix_row_t)); + + mcp23018_init(); + + matrix_init_quantum(); +} + +uint8_t matrix_scan(void) { + bool changed = false; + + matrix_row_t data = 0; + // actual matrix + for (uint8_t row = 0; row < ROWS_PER_HAND; row++) { + // strobe row + switch (row) { + case 0: writePinHigh(B10); break; + case 1: writePinHigh(B11); break; + case 2: writePinHigh(B12); break; + case 3: writePinHigh(B13); break; + case 4: writePinHigh(B14); break; + case 5: writePinHigh(B15); break; + } + + // need wait to settle pin state + matrix_io_delay(); + + // read col data + data = ( + (readPin(A0) << 0 ) | + (readPin(A1) << 1 ) | + (readPin(A2) << 2 ) | + (readPin(A3) << 3 ) | + (readPin(A6) << 4 ) | + (readPin(A7) << 5 ) | + (readPin(B0) << 6 ) + ); + + // unstrobe row + switch (row) { + case 0: writePinLow(B10); break; + case 1: writePinLow(B11); break; + case 2: writePinLow(B12); break; + case 3: writePinLow(B13); break; + case 4: writePinLow(B14); break; + case 5: writePinLow(B15); break; + } + + if (matrix_debouncing[row] != data) { + matrix_debouncing[row] = data; + debouncing = true; + debouncing_time = timer_read(); + changed = true; + } + } + + for (uint8_t row = 0; row <= ROWS_PER_HAND; row++) { + // right side + + if (!mcp23018_initd) { + if (++mcp23018_reset_loop == 0) { + // if (++mcp23018_reset_loop >= 1300) { + // since mcp23018_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans + // this will be approx bit more frequent than once per second + print("trying to reset mcp23018\n"); + mcp23018_init(); + if (!mcp23018_initd) { + print("left side not responding\n"); + } else { + print("left side attached\n"); +#ifdef RGB_MATRIX_ENABLE + rgb_matrix_init(); +#endif + } + } + } + + // #define MCP23_ROW_PINS { GPB5, GBP4, GBP3, GBP2, GBP1, GBP0 } outputs + // #define MCP23_COL_PINS { GPA0, GBA1, GBA2, GBA3, GBA4, GBA5, GBA6 } inputs + + // select row + + mcp23018_tx[0] = 0x12; // GPIOA + mcp23018_tx[1] = (0b01111111 & ~(1 << (row))) | ((uint8_t)!mcp23018_leds[2] << 7); // activate row + mcp23018_tx[2] = ((uint8_t)!mcp23018_leds[1] << 6) | ((uint8_t)!mcp23018_leds[0] << 7); // activate row + + if (MSG_OK != i2c_transmit(MCP23018_DEFAULT_ADDRESS << 1, mcp23018_tx, 3, I2C_TIMEOUT)) { + printf("error hori\n"); + mcp23018_initd = false; + } + + // read col + + mcp23018_tx[0] = 0x13; // GPIOB + if (MSG_OK != i2c_readReg(MCP23018_DEFAULT_ADDRESS << 1, mcp23018_tx[0], &mcp23018_rx[0], 1, I2C_TIMEOUT)) { + printf("error vert\n"); + mcp23018_initd = false; + } + + data = ~(mcp23018_rx[0] & 0b00111111); + // data = 0x01; + + if (matrix_debouncing_right[row] != data) { + matrix_debouncing_right[row] = data; + debouncing_right = true; + debouncing_time_right = timer_read(); + changed = true; + } + } + + if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) { + for (int row = 0; row < ROWS_PER_HAND; row++) { + matrix[row] = matrix_debouncing[row]; + } + debouncing = false; + } + + if (debouncing_right && timer_elapsed(debouncing_time_right) > DEBOUNCE && mcp23018_initd) { + for (int row = 0; row < ROWS_PER_HAND; row++) { + matrix[11 - row] = 0; + for (int col = 0; col < MATRIX_COLS; col++) { + matrix[11 - row] |= ((matrix_debouncing_right[6 - col] & (1 << row) ? 1 : 0) << col); + } + } + debouncing_right = false; + } + + matrix_scan_quantum(); + + return (uint8_t)changed; +} + +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) { + printf("\nr/c 01234567\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + printf("%X0: ", row); + matrix_row_t data = matrix_get_row(row); + for (int col = 0; col < MATRIX_COLS; col++) { + if (data & (1 << col)) + printf("1"); + else + printf("0"); + } + printf("\n"); + } +} -- cgit v1.2.3