qmk_firmware

matrix.c (5283B)

---

 /*
 Copyright 2012 Jun Wako
 Copyright 2014 Jack Humbert
 Copyright 2019 @filoxo
 
 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 <http://www.gnu.org/licenses/>.
 */
 #include <stdint.h>
 #include <stdbool.h>
 #if defined(__AVR__)
 #include <avr/io.h>
 #endif
 #include "wait.h"
 #include "print.h"
 #include "debug.h"
 #include "util.h"
 #include "matrix.h"
 #include "timer.h"
 #include "honeycomb.h"
 #include "pointing_device.h"
 #include "report.h"
 #include "uart.h"
 
 #if (MATRIX_COLS <= 8)
 # define print_matrix_header()  print("\nr/c 01234567\n")
 # define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
 # define ROW_SHIFTER ((uint8_t)1)
 #elif (MATRIX_COLS <= 16)
 # define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
 # define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
 # define ROW_SHIFTER ((uint16_t)1)
 #elif (MATRIX_COLS <= 32)
 # define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
 # define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
 # define ROW_SHIFTER  ((uint32_t)1)
 #endif
 
 #define UART_MATRIX_RESPONSE_TIMEOUT 10000
 
 /* matrix state(1:on, 0:off) */
 static matrix_row_t matrix[MATRIX_ROWS];
 //extern int8_t encoderValue;
 int8_t encoderValue = 0;
 
 __attribute__ ((weak))
 void matrix_init_kb(void) {
     matrix_init_user();
 }
 
 __attribute__ ((weak))
 void matrix_scan_kb(void) {
     matrix_scan_user();
 }
 
 __attribute__ ((weak))
 void matrix_init_user(void) {
 }
 
 __attribute__ ((weak))
 void matrix_scan_user(void) {
 }
 
 inline
 uint8_t matrix_rows(void) {
     return MATRIX_ROWS;
 }
 
 inline
 uint8_t matrix_cols(void) {
     return MATRIX_COLS;
 }
 
 void matrix_init(void) {
 
     matrix_init_kb();
     uart_init(1000000);
 }
 
 uint8_t matrix_scan(void)
 {
     uint32_t timeout = 0;
 
     // The 's' character requests the RF slave to send the matrix
     uart_write('s');
 
     // Trust the external keystates entirely, erase the last data
     uint8_t uart_data[4] = {0};
 
     // There are 3 bytes corresponding to the data, and a checksum
     for (uint8_t i = 0; i < 4; i++) {
         // Wait for the serial data, timeout if it's been too long
         // This only happened in testing with a loose wire, but does no
         // harm to leave it in here
         while(!uart_available()){
             timeout++;
             if (timeout > UART_MATRIX_RESPONSE_TIMEOUT) {
                 break;
             }
         }
 
         if (timeout < UART_MATRIX_RESPONSE_TIMEOUT) {
             uart_data[i] = uart_read();
         } else {
             uart_data[i] = 0x00;
         }
     }
 
     // Check for the end packet, it's our checksum.
     // Will only be a match if the correct bytes were recieved
     if (uart_data[3] == (uart_data[0] ^ uart_data[1] ^ uart_data[2])) { // This is an arbitrary checksum calculated by XORing all the data.
         // Transferring the keystates to the QMK matrix variable
 		/* ASSUMING MSB FIRST */
 		matrix[0] = ((uint16_t) uart_data[0] << 8) | ((uint16_t) uart_data[1]);
 		encoderValue += (int8_t) uart_data[2];
 		if ((uart_data[0] | uart_data[1] | uart_data[2])!=0){
 			xprintf("\r\n0x%0X%02X%02X",uart_data[0],uart_data[1], uart_data[2]);
 		}
 		/* OK, TURNS OUT THAT WAS A BAD ASSUMPTION */
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
 			// I've unpacked these into the mirror image of what QMK expects them to be, so...
 			matrix[i] = bitrev16(matrix[i]);
 			// So I'll reverse it, and this should be fine now.
         }
 
         // A mouse report for scrolling would go here, but I don't plan on doing scrolling with the encoder. So.
 
     	report_mouse_t currentReport = {};
 /*
     	currentReport = pointing_device_get_report();
             //mouseReport.x = 127 max -127 min
     	currentReport.x = (int8_t) uart_data[6];
             //mouseReport.y = 127 max -127 min
     	currentReport.y = (int8_t) uart_data[7];
             //mouseReport.v = 127 max -127 min (scroll vertical)
     	currentReport.v = (int8_t) uart_data[8];
             //mouseReport.h = 127 max -127 min (scroll horizontal)
     	currentReport.h = (int8_t) uart_data[9];
         */
     	/*
     	currentReport.x = 0;
     	currentReport.y = 0;
     	currentReport.v = 0;
         currentReport.h = 0;*/
 
         pointing_device_set_report(currentReport);
     } else {
         xprintf("\r\nRequested packet, data 3 was %d",uart_data[3]);
     }
 
     matrix_scan_kb();
     return 1;
 }
 
 inline
 bool matrix_is_on(uint8_t row, uint8_t col)
 {
     return (matrix[row] & ((matrix_row_t)1<col));
 }
 
 inline
 matrix_row_t matrix_get_row(uint8_t row)
 {
     return matrix[row];
 }
 
 void matrix_print(void)
 {
     print_matrix_header();
 
     for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
         print_hex8(row); print(": ");
         print_matrix_row(row);
         print("\n");
     }
 }