th_xbox360gamepad.c

00001 /****************************************************************************
00002  *    Copyright 2010 Andy Kirkham, Stellar Technologies Ltd
00003  *    
00004  *    This file is part of the Satellite Observers Workbench (SOWB).
00005  *
00006  *    SOWB is free software: you can redistribute it and/or modify
00007  *    it under the terms of the GNU General Public License as published by
00008  *    the Free Software Foundation, either version 3 of the License, or
00009  *    (at your option) any later version.
00010  *
00011  *    SOWB is distributed in the hope that it will be useful,
00012  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *    GNU General Public License for more details.
00015  *
00016  *    You should have received a copy of the GNU General Public License
00017  *    along with SOWB.  If not, see <http://www.gnu.org/licenses/>.
00018  *
00019  *    $Id: main.cpp 5 2010-07-12 20:51:11Z ajk $
00020  *    
00021  ***************************************************************************/
00022  
00023 #ifndef TH_XBOX360GAMEPAD_C
00024 #define TH_XBOX360GAMEPAD_C
00025 #endif
00026 
00027 #include "mbed.h"
00028 #include "usbeh.h"
00029 #include "usbeh_endpoint.h"
00030 #include "usbeh_device.h"
00031 #include "usbeh_controller.h"
00032 #include "usbeh_api.h"
00033 #include "xbox360gamepad.h"
00034 #include "th_xbox360gamepad.h"
00035 
00036 #include "main.h"
00037 #include "debug.h"
00038 
00039 
00040 const char *button_text[] = { "","LS","RS","XBOX","Unused","A","B","X","Y","DPAD UP","DPAD DOWN","DPAD LEFT","DPAG RIGHT","START","BACK","LEFT HAT","RIGHT HAT" };
00041 
00042 /* Define globals to hold Xbox360 stick data. */
00043 XBOX360_STICK *stick;
00044 XBOX360_STICK stick_left_previous;
00045 XBOX360_STICK stick_right_previous;   
00046 unsigned char trigger_left = 0, trigger_left_last = 0;
00047 unsigned char trigger_right = 0, trigger_right_last = 0;
00048 
00049 void th_xbox360gamepad_init(void) {
00050     stick = xbox360gamepad_get_stick_left();
00051     stick_left_previous.x = stick->x;
00052     stick_left_previous.y = stick->y;
00053     stick = xbox360gamepad_get_stick_right();
00054     stick_right_previous.x = stick->x;
00055     stick_right_previous.y = stick->y;    
00056 }
00057         
00058 void th_xbox360gamepad(void) {
00059     unsigned char button;
00060     if ((button = xbox360gamepad_get_button()) != 0) {
00061         if (button > 0) {
00062             debug_printf("Button ");
00063             if (button > (BUTT_RIGHT_HAT_PRESS + 16)) {
00064                 debug_printf("%s held\r\n", button_text[button - 32]);
00065             }
00066             else if (button > BUTT_RIGHT_HAT_PRESS) { 
00067                 debug_printf("%s released\r\n", button_text[button - 16]);
00068             }
00069             else {
00070                 debug_printf("%s pressed\r\n", button_text[button]);
00071                 switch (button) {
00072                     case BUTT_A_PRESS:
00073                         xbox360gamepad_led(LED_1_FLASH_THEN_ON);
00074                         break;
00075                     case BUTT_B_PRESS:
00076                         xbox360gamepad_led(LED_2_FLASH_THEN_ON);
00077                         break;
00078                     case BUTT_X_PRESS:
00079                         xbox360gamepad_led(LED_3_FLASH_THEN_ON);
00080                         break;
00081                     case BUTT_Y_PRESS:
00082                         xbox360gamepad_led(LED_4_FLASH_THEN_ON);
00083                         break;
00084                 }
00085             }
00086         }
00087     }
00088 
00089     if ((trigger_left = xbox360gamepad_get_trigger_left()) != trigger_left_last) {
00090         debug_printf("Left trigger: %d\r\n", trigger_left);
00091         trigger_left_last = trigger_left;
00092     }
00093 
00094     if ((trigger_right = xbox360gamepad_get_trigger_right()) != trigger_right_last) {
00095         debug_printf("Right trigger: %d\r\n", trigger_right);
00096         trigger_right_last = trigger_right;
00097     }
00098         
00099     unsigned char xbox360gamepad_get_trigger_right(void);
00100       
00101     stick = xbox360gamepad_get_stick_left();
00102     if (stick->x/STICK_DIVISOR != stick_left_previous.x/STICK_DIVISOR || stick->y/STICK_DIVISOR != stick_left_previous.y/STICK_DIVISOR) {
00103         stick_left_previous.x = stick->x;
00104         stick_left_previous.y = stick->y;
00105         // Don't bother printing for now, the sticks are too sensitive!
00106         int x = stick->x/STICK_DIVISOR, y = stick->y/STICK_DIVISOR;
00107         if (1 || (x > 10 || x < -10) || (y > 10 || y < -10) ) {
00108             debug_printf("New LEFT stick position x = %d y = %d\r\n", stick->x/STICK_DIVISOR, stick->y/STICK_DIVISOR);
00109         }
00110     }
00111 
00112     stick = xbox360gamepad_get_stick_right();
00113     if (stick->x/STICK_DIVISOR != stick_right_previous.x/STICK_DIVISOR || stick->y/STICK_DIVISOR != stick_right_previous.y/STICK_DIVISOR) {
00114         stick_right_previous.x = stick->x;
00115         stick_right_previous.y = stick->y;
00116         // Don't bother printing for now, the sticks are too sensitive!
00117         int x = stick->x/STICK_DIVISOR, y = stick->y/STICK_DIVISOR;
00118         if (1 || (x > 10 || x < -10) || (y > 10 || y < -10) ) {
00119             debug_printf("New RIGHT stick position x = %d y = %d\r\n", stick->x/STICK_DIVISOR, stick->y/STICK_DIVISOR);
00120         }
00121     }    
00122 }
00123