1 files changed, 226 insertions, 0 deletions

diff --git a/keyboards/dichotomy/matrix.c b/keyboards/dichotomy/matrix.c
new file mode 100755
index 000000000..ed83bd452
--- /dev/null
+++ b/keyboards/dichotomy/matrix.c
@@ -0,0 +1,226 @@
+/*
+Copyright 2012 Jun Wako
+Copyright 2014 Jack Humbert
+
+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 "dichotomy.h"
+#include "pointing_device.h"
+#include "report.h"
+#include "protocol/serial.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 matrix_bitpop(i)       bitpop(matrix[i])
+#    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 matrix_bitpop(i)       bitpop16(matrix[i])
+#    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 matrix_bitpop(i)       bitpop32(matrix[i])
+#    define ROW_SHIFTER  ((uint32_t)1)
+#endif
+
+#define MAIN_ROWMASK 0xFFF0;
+#define LOWER_ROWMASK 0x3FC0;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+    matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+    matrix_scan_kb();
+}
+
+__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_quantum();
+    serial_init();
+}
+
+uint8_t matrix_scan(void)
+{
+    //xprintf("\r\nTRYING TO SCAN");
+
+    uint32_t timeout = 0;
+
+    //the s character requests the RF slave to send the matrix
+    SERIAL_UART_DATA = 's';
+
+    //trust the external keystates entirely, erase the last data
+    uint8_t uart_data[11] = {0};
+
+    //there are 10 bytes corresponding to 10 columns, and an end byte
+    for (uint8_t i = 0; i < 11; 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(!SERIAL_UART_RXD_PRESENT){
+            timeout++;
+            if (timeout > 10000){
+                xprintf("\r\nTime out in keyboard.");
+                break;
+            }
+        }
+        uart_data[i] = SERIAL_UART_DATA;
+    }
+
+    //check for the end packet, the key state bytes use the LSBs, so 0xE0
+    //will only show up here if the correct bytes were recieved
+            uint8_t checksum = 0x00;
+            for (uint8_t z=0; z<10; z++){
+                checksum = checksum^uart_data[z];
+            }
+            checksum = checksum ^ (uart_data[10] & 0xF0);
+            // Smash the checksum from 1 byte into 4 bits
+            checksum = (checksum ^ ((checksum & 0xF0)>>4)) & 0x0F;
+//xprintf("\r\nGOT RAW PACKET: \r\n%d\r\n%d\r\n%d\r\n%d\r\n%d\r\n%d\r\n%d\r\n%d\r\n%d\r\n%d\r\n%d\r\n%d",uart_data[0],uart_data[1],uart_data[2],uart_data[3],uart_data[4],uart_data[5],uart_data[6],uart_data[7],uart_data[8],uart_data[9],uart_data[10],checksum);
+    if ((uart_data[10] & 0x0F) == checksum) { //this is an arbitrary binary checksum (1001) (that would be 0x9.)
+        //xprintf("\r\nGOT PACKET: \r\n%d\r\n%d\r\n%d\r\n%d\r\n%d\r\n%d",uart_data[0],uart_data[1],uart_data[2],uart_data[3],uart_data[4],uart_data[5]);
+        //shifting and transferring the keystates to the QMK matrix variable
+                //bits 1-12 are row 1, 13-24 are row 2, 25-36 are row 3,
+                //bits 37-42 are row 4 (only 6 wide, 1-3 are 0, and 10-12 are 0)
+                //bits 43-48 are row 5 (same as row 4)
+                /* ASSUMING MSB FIRST */
+                matrix[0] = (((uint16_t) uart_data[0] << 8) | ((uint16_t) uart_data[1])) & MAIN_ROWMASK;
+                matrix[1] = ((uint16_t) uart_data[1] << 12) | ((uint16_t) uart_data[2] << 4);
+                matrix[2] = (((uint16_t) uart_data[3] << 8) | ((uint16_t) uart_data[4])) & MAIN_ROWMASK;
+                matrix[3] = (((uint16_t) uart_data[4] << 9) | ((uint16_t) uart_data[5] << 1)) & LOWER_ROWMASK;
+                matrix[4] = (((uint16_t) uart_data[5] << 7) | ((uart_data[10] & 1<<7) ? 1:0) << 13 | ((uart_data[10] & 1<<6) ? 1:0) << 6) & LOWER_ROWMASK;
+                /* 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...
+                        /*uint8_t halfOne = (matrix[i]>>8);
+                        uint8_t halfTwo = (matrix[i] & 0xFF);
+                        halfOne = ((halfOne * 0x0802LU & 0x22110LU) | (halfOne * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16;
+                        halfTwo = ((halfTwo * 0x0802LU & 0x22110LU) | (halfTwo * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16;
+                        matrix[i] = ((halfTwo<<8) & halfOne);*/
+                        //matrix[i] = ((matrix[i] * 0x0802LU & 0x22110LU) | (matrix[i] * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16;
+                        matrix[i] = bitrev16(matrix[i]);
+                        //bithack mirror!  Doesn't make any sense, but works - and efficiently.
+        }
+        //if (uart_data[6]!=0 || uart_data[7]!=0){
+        //if (maxCount<101){
+        //      xprintf("\r\nMouse data: x=%d, y=%d",(int8_t)uart_data[6],(int8_t)uart_data[7]);
+        //}
+        report_mouse_t currentReport = {};
+        //check for the end packet, bytes 1-4 are movement and scroll
+        //but byte 5 has bits 0-3 for the scroll button state
+        //(1000 if pressed, 0000 if not) and bits 4-7 are always 1
+        //We can use this to verify the report sent properly.
+
+        currentReport = pointing_device_get_report();
+        //shifting and transferring the info to the mouse report varaible
+        //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 10 was %d but checksum was %d",(uart_data[10] & 0x0F), (checksum & 0x0F));
+    }
+    //matrix_print();
+
+    matrix_scan_quantum();
+    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");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += matrix_bitpop(i);
+    }
+    return count;
+}