2 * keyboard firmware based on PJRC USB keyboard example
4 /* Keyboard example with debug channel, for Teensy USB Development Board
5 * http://www.pjrc.com/teensy/usb_keyboard.html
6 * Copyright (c) 2008 PJRC.COM, LLC
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
29 #include <avr/pgmspace.h>
30 #include <avr/interrupt.h>
31 #include <util/delay.h>
33 #include "usb_keyboard.h"
34 #include "usb_mouse.h"
38 #include "jump_bootloader.h"
42 #define LED_CONFIG (DDRD |= (1<<6))
43 #define LED_ON (PORTD |= (1<<6))
44 #define LED_OFF (PORTD &= ~(1<<6))
45 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
47 #define MOUSE_MOVE_UNIT 10
48 #define MOUSE_DELAY_MS 200
49 #define MOUSE_DELAY_ACC 4
52 static void print_matrix(void);
55 uint16_t idle_count=0;
60 // set for 16 MHz clock
63 // Initialize the USB, and then wait for the host to set configuration.
64 // If the Teensy is powered without a PC connected to the USB port,
65 // this will wait forever.
67 while (!usb_configured()) /* wait */ ;
69 // Wait an extra second for the PC's operating system to load drivers
70 // and do whatever it does to actually be ready for input
71 // needs such long time in my PC.
72 for (int i =0; i < 6; i++) {
80 // Configure timer 0 to generate a timer overflow interrupt every
81 // 256*1024 clock cycles, or approx 61 Hz when using 16 MHz clock
82 // This demonstrates how to use interrupts to implement a simple
83 // inactivity timeout.
91 bool modified = false;
92 bool has_ghost = false;
97 uint8_t mouse_btn = 0;
98 int8_t mouse_wheel = 0;
99 int8_t mouse_hwheel = 0;
100 int mouse_repeat = 0;
102 print("\nt.m.k. keyboard 1.0\n");
105 modified = matrix_is_modified();
106 has_ghost = matrix_has_ghost();
109 // print matrix state for debug
117 keyboard_modifier_keys = 0;
118 for (int i = 0; i < 6; i++) keyboard_keys[i] = KB_NO;
126 // convert matrix state to HID report
127 for (int row = 0; row < MATRIX_ROWS; row++) {
128 for (int col = 0; col < MATRIX_COLS; col++) {
129 if (matrix[row] & 1<<col) continue;
131 uint8_t code = get_keycode(layer, row, col);
134 } else if (KB_LCTRL <= code && code <= KB_RGUI) {
135 // modifier keys(0xE0-0xE7)
136 keyboard_modifier_keys |= 1<<(code & 0x07);
137 } else if (code >= MS_UP) {
139 if (code == MS_UP) mouse_y -= MOUSE_MOVE_UNIT;
140 if (code == MS_DOWN) mouse_y += MOUSE_MOVE_UNIT;
141 if (code == MS_LEFT) mouse_x -= MOUSE_MOVE_UNIT;
142 if (code == MS_RIGHT) mouse_x += MOUSE_MOVE_UNIT;
143 if (code == MS_BTN1) mouse_btn |= 1<<0;
144 if (code == MS_BTN2) mouse_btn |= 1<<1;
145 if (code == MS_BTN3) mouse_btn |= 1<<2;
146 if (code == MS_BTN4) mouse_btn |= 1<<3;
147 if (code == MS_BTN5) mouse_btn |= 1<<4;
148 if (code == MS_WH_UP) mouse_wheel -= 1;
149 if (code == MS_WH_DOWN) mouse_wheel += 1;
150 if (code == MS_WH_LEFT) mouse_hwheel -= 1;
151 if (code == MS_WH_RIGHT) mouse_hwheel += 1;
155 keyboard_keys[key_index] = code;
162 // when 4 left modifier keys down
163 if (keyboard_modifier_keys == (MOD_LCTRL | MOD_LSHIFT | MOD_LALT | MOD_LGUI)) {
165 keyboard_modifier_keys = 0;
166 for (int i = 0; i < 6; i++) keyboard_keys[i] = KB_NO;
169 print("jump to bootloader...\n");
171 jump_bootloader(); // not return
174 if (mouse_x || mouse_y || mouse_wheel || mouse_hwheel || mouse_btn != mouse_buttons) {
175 mouse_buttons = mouse_btn;
176 usb_mouse_move(mouse_x, mouse_y, mouse_wheel, mouse_hwheel);
179 _delay_ms(MOUSE_DELAY_MS >> (mouse_repeat < MOUSE_DELAY_ACC ? mouse_repeat : MOUSE_DELAY_ACC));
198 static void print_matrix(void) {
199 print("\nr/c 01234567\n");
200 for (int row = 0; row < MATRIX_ROWS; row++) {
201 phex(row); print(": ");
202 pbin_reverse(matrix[row]);
203 if (matrix_has_ghost_in_row(row)) {
209 for (int i = 0; i < 6; i++) { phex(keyboard_keys[i]); print(" "); }
211 print("mod: "); phex(keyboard_modifier_keys); print("\n");
214 // This interrupt routine is run approx 61 times per second.
215 // A very simple inactivity timeout is implemented, where we
216 // will send a space character and print a message to the
217 // hid_listen debug message window.