160 lines
3.6 KiB
C++
160 lines
3.6 KiB
C++
#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include "joystick.h"
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#if defined(USE_JOYSTICK)
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#include <linux/joystick.h>
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const u32 joystick_map_btn_usb[JOYSTICK_MAP_SIZE] = { DC_BTN_Y, DC_BTN_B, DC_BTN_A, DC_BTN_X, 0, 0, 0, 0, 0, DC_BTN_START };
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const u32 joystick_map_axis_usb[JOYSTICK_MAP_SIZE] = { DC_AXIS_X, DC_AXIS_Y, 0, 0, 0, 0, 0, 0, 0, 0 };
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const u32 joystick_map_btn_xbox360[JOYSTICK_MAP_SIZE] = { DC_BTN_A, DC_BTN_B, DC_BTN_X, DC_BTN_Y, 0, 0, 0, DC_BTN_START, 0, 0 };
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const u32 joystick_map_axis_xbox360[JOYSTICK_MAP_SIZE] = { DC_AXIS_X, DC_AXIS_Y, DC_AXIS_LT, 0, 0, DC_AXIS_RT, DC_DPAD_LEFT, DC_DPAD_UP, 0, 0 };
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const u32* joystick_map_btn = joystick_map_btn_usb;
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const u32* joystick_map_axis = joystick_map_axis_usb;
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int input_joystick_init(const char* device)
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{
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int axis_count = 0;
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int button_count = 0;
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char name[128] = "Unknown";
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printf("joystick: Trying to open device at '%s'\n", device);
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int fd = open(device, O_RDONLY);
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if(fd >= 0)
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{
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fcntl(fd, F_SETFL, O_NONBLOCK);
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ioctl(fd, JSIOCGAXES, &axis_count);
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ioctl(fd, JSIOCGBUTTONS, &button_count);
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ioctl(fd, JSIOCGNAME(sizeof(name)), &name);
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printf("joystick: Found '%s' with %d axis and %d buttons at '%s'.\n", name, axis_count, button_count, device);
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if (strcmp(name, "Microsoft X-Box 360 pad") == 0 ||
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strcmp(name, "Xbox Gamepad (userspace driver)") == 0 ||
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strcmp(name, "Xbox 360 Wireless Receiver (XBOX)") == 0)
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{
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joystick_map_btn = joystick_map_btn_xbox360;
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joystick_map_axis = joystick_map_axis_xbox360;
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printf("joystick: Using Xbox 360 map\n");
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}
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}
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else
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{
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perror("joystick open");
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}
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return fd;
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}
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bool input_joystick_handle(int fd, u32 port)
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{
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// Joystick must be connected
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if(fd < 0) {
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return false;
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}
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struct js_event JE;
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while(read(fd, &JE, sizeof(JE)) == sizeof(JE))
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if (JE.number < JOYSTICK_MAP_SIZE)
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{
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switch(JE.type & ~JS_EVENT_INIT)
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{
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case JS_EVENT_AXIS:
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{
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u32 mt = joystick_map_axis[JE.number] >> 16;
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u32 mo = joystick_map_axis[JE.number] & 0xFFFF;
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//printf("AXIS %d,%d\n",JE.number,JE.value);
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s8 v=(s8)(JE.value/256); //-127 ... + 127 range
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if (mt == 0)
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{
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kcode[port] |= mo;
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kcode[port] |= mo*2;
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if (v<-64)
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{
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kcode[port] &= ~mo;
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}
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else if (v>64)
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{
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kcode[port] &= ~(mo*2);
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}
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//printf("Mapped to %d %d %d\n",mo,kcode[port]&mo,kcode[port]&(mo*2));
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}
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else if (mt == 1)
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{
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if (v >= 0)
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{
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v++; //up to 255
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}
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//printf("AXIS %d,%d Mapped to %d %d %d\n",JE.number,JE.value,mo,v,v+127);
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if (mo == 0)
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{
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lt[port] = (v + 127);
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}
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else if (mo == 1)
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{
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rt[port] = (v + 127);
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}
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}
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else if (mt == 2)
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{
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// printf("AXIS %d,%d Mapped to %d %d [%d]",JE.number,JE.value,mo,v);
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if (mo == 0)
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{
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joyx[port] = v;
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}
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else if (mo == 1)
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{
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joyy[port] = v;
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}
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}
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}
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break;
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case JS_EVENT_BUTTON:
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{
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u32 mt = joystick_map_btn[JE.number] >> 16;
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u32 mo = joystick_map_btn[JE.number] & 0xFFFF;
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// printf("BUTTON %d,%d\n",JE.number,JE.value);
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if (mt == 0)
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{
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// printf("Mapped to %d\n",mo);
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if (JE.value)
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{
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kcode[port] &= ~mo;
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}
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else
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{
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kcode[port] |= mo;
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}
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}
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else if (mt == 1)
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{
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// printf("Mapped to %d %d\n",mo,JE.value?255:0);
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if (mo==0)
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{
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lt[port] = JE.value ? 255 : 0;
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}
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else if (mo==1)
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{
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rt[port] = JE.value ? 255 : 0;
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}
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}
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}
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break;
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}
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}
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return true;
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}
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#endif
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