572 lines
15 KiB
C
572 lines
15 KiB
C
#include "virt_evdev.h"
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#include "devices_status.h"
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#include "logic.h"
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static const char* uinput_path = "/dev/uinput";
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static int create_gamepad_uinput(void) {
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int fd = open(uinput_path, O_WRONLY | O_NONBLOCK);
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if(fd < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_setup dev = {0};
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strncpy(dev.name, OUTPUT_DEV_NAME, UINPUT_MAX_NAME_SIZE-1);
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#if defined(OUTPUT_DEV_BUS_TYPE)
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dev.id.bustype = OUTPUT_DEV_BUS_TYPE;
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#else
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dev.id.bustype = BUS_VIRTUAL;
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#endif
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dev.id.vendor = OUTPUT_DEV_VENDOR_ID;
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dev.id.product = OUTPUT_DEV_PRODUCT_ID;
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#if defined(OUTPUT_DEV_VERSION)
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dev.id.version = OUTPUT_DEV_VERSION;
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#endif
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//if (ioctl(fd, /*UI_SET_PHYS_STR*/ 18, PHYS_STR) != 0) {
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// fprintf(stderr, "Controller and gyroscope will NOT be recognized as a single device!\n");
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//}
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if (ioctl(fd, UI_SET_PHYS, PHYS_STR) != 0) {
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fprintf(stderr, "Error setting the phys of the virtual controller.\n");
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}
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#if !defined(UI_SET_PHYS_STR)
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#warning Will not change the PHYS
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#endif
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#if !defined(UI_SET_UNIQ_STR)
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#warning Will not change the UNIQ
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#endif
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#if defined(UI_SET_PHYS_STR)
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ioctl(fd, UI_SET_PHYS_STR(18), PHYS_STR);
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#else
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fprintf(stderr, "UI_SET_PHYS_STR unavailable.\n");
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#endif
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#if defined(UI_SET_UNIQ_STR)
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ioctl(fd, UI_SET_UNIQ_STR(18), PHYS_STR);
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#else
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fprintf(stderr, "UI_SET_UNIQ_STR unavailable.\n");
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#endif
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//ioctl(fd, UI_SET_PROPBIT, INPUT_PROP_BUTTONPAD);
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ioctl(fd, UI_SET_EVBIT, EV_ABS);
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ioctl(fd, UI_SET_EVBIT, EV_KEY);
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ioctl(fd, UI_SET_EVBIT, EV_SYN);
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#if defined(INCLUDE_TIMESTAMP)
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ioctl(fd, UI_SET_EVBIT, EV_MSC);
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ioctl(fd, UI_SET_MSCBIT, MSC_TIMESTAMP);
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#endif
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ioctl(fd, UI_SET_ABSBIT, ABS_X);
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ioctl(fd, UI_SET_ABSBIT, ABS_Y);
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ioctl(fd, UI_SET_ABSBIT, ABS_Z);
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ioctl(fd, UI_SET_ABSBIT, ABS_RX);
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ioctl(fd, UI_SET_ABSBIT, ABS_RY);
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ioctl(fd, UI_SET_ABSBIT, ABS_RZ);
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ioctl(fd, UI_SET_ABSBIT, ABS_HAT0X);
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ioctl(fd, UI_SET_ABSBIT, ABS_HAT0Y);
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ioctl(fd, UI_SET_ABSBIT, ABS_HAT2X);
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ioctl(fd, UI_SET_ABSBIT, ABS_HAT2Y);
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ioctl(fd, UI_SET_KEYBIT, BTN_SOUTH);
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ioctl(fd, UI_SET_KEYBIT, BTN_EAST);
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ioctl(fd, UI_SET_KEYBIT, BTN_NORTH);
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ioctl(fd, UI_SET_KEYBIT, BTN_WEST);
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ioctl(fd, UI_SET_KEYBIT, BTN_TL);
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ioctl(fd, UI_SET_KEYBIT, BTN_TR);
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ioctl(fd, UI_SET_KEYBIT, BTN_TL2);
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ioctl(fd, UI_SET_KEYBIT, BTN_TR2);
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ioctl(fd, UI_SET_KEYBIT, BTN_SELECT);
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ioctl(fd, UI_SET_KEYBIT, BTN_START);
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ioctl(fd, UI_SET_KEYBIT, BTN_MODE);
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ioctl(fd, UI_SET_KEYBIT, BTN_THUMBL);
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ioctl(fd, UI_SET_KEYBIT, BTN_THUMBR);
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ioctl(fd, UI_SET_KEYBIT, BTN_GEAR_DOWN);
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ioctl(fd, UI_SET_KEYBIT, BTN_GEAR_UP);
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ioctl(fd, UI_SET_KEYBIT, BTN_DPAD_UP);
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ioctl(fd, UI_SET_KEYBIT, BTN_DPAD_DOWN);
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ioctl(fd, UI_SET_KEYBIT, BTN_DPAD_LEFT);
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ioctl(fd, UI_SET_KEYBIT, BTN_DPAD_RIGHT);
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const struct uinput_abs_setup devAbsX = {
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.code = ABS_X,
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.absinfo = {
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.value = 0,
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.minimum = -32768,
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.maximum = +32768,
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.resolution = 1,
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.fuzz = 16,
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.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsX) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsY = {
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.code = ABS_Y,
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.absinfo = {
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.value = 0,
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.minimum = -32768,
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.maximum = +32768,
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.resolution = 1,
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.fuzz = 16,
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.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsY) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsZ = {
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.code = ABS_Z,
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.absinfo = {
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.value = 0,
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.minimum = 0,
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.maximum = 255,
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.resolution = 1,
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//.fuzz = 16,
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//.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsZ) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsRX = {
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.code = ABS_RX,
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.absinfo = {
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.value = 0,
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.minimum = -32768,
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.maximum = +32768,
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.resolution = 1,
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.fuzz = 16,
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.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsRX) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsRY = {
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.code = ABS_RY,
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.absinfo = {
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.value = -1,
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.minimum = -32768,
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.maximum = +32768,
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.resolution = 1,
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.fuzz = 16,
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.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsRY) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsRZ = {
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.code = ABS_RZ,
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.absinfo = {
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.value = 0,
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.minimum = 0,
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.maximum = 255,
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.resolution = 1,
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//.fuzz = 16,
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//.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsRZ) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsHat0X = {
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.code = ABS_HAT0X,
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.absinfo = {
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.value = 0,
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.minimum = -1,
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.maximum = 1,
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.resolution = 1,
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//.fuzz = 16,
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//.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsHat0X) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsHat0Y = {
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.code = ABS_HAT0Y,
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.absinfo = {
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.value = 0,
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.minimum = -1,
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.maximum = 1,
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.resolution = 1,
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//.fuzz = 16,
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//.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsHat0Y) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsHat2X = {
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.code = ABS_HAT2X,
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.absinfo = {
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.value = 0,
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.minimum = 0,
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.maximum = 255,
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.resolution = 51,
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//.fuzz = 16,
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//.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsHat2X) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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struct uinput_abs_setup devAbsHat2Y = {
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.code = ABS_HAT2Y,
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.absinfo = {
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.value = 0,
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.minimum = 0,
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.maximum = 255,
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.resolution = 51,
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//.fuzz = 16,
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//.flat = 128,
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}
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};
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if(ioctl(fd, UI_ABS_SETUP, &devAbsHat2Y) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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if(ioctl(fd, UI_DEV_SETUP, &dev) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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if(ioctl(fd, UI_DEV_CREATE) < 0) {
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fd = -1;
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close(fd);
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goto create_gamepad_uinput_err;
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}
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create_gamepad_uinput_err:
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return fd;
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}
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static int create_imu_uinput() {
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int fd = open(uinput_path, O_WRONLY | O_NONBLOCK);
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if(fd < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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struct uinput_setup dev = {0};
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strncpy(dev.name, OUTPUT_DEV_NAME, UINPUT_MAX_NAME_SIZE-1);
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#if defined(OUTPUT_DEV_BUS_TYPE)
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dev.id.bustype = OUTPUT_DEV_BUS_TYPE;
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#else
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dev.id.bustype = BUS_VIRTUAL;
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#endif
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dev.id.vendor = OUTPUT_DEV_VENDOR_ID;
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dev.id.product = OUTPUT_DEV_PRODUCT_ID;
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#if defined(OUTPUT_DEV_VERSION)
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dev.id.version = OUTPUT_DEV_VERSION;
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#endif
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//if (ioctl(fd, /*UI_SET_PHYS_STR*/ 18, PHYS_STR) != 0) {
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// fprintf(stderr, "Controller and gyroscope will NOT be recognized as a single device!\n");
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//}
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if (ioctl(fd, UI_SET_PHYS, PHYS_STR) != 0) {
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fprintf(stderr, "Error setting the phys of the virtual controller.\n");
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}
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#if !defined(UI_SET_PHYS_STR)
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#warning Will not change the PHYS
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#endif
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#if !defined(UI_SET_UNIQ_STR)
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#warning Will not change the UNIQ
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#endif
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#if defined(UI_SET_PHYS_STR)
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ioctl(fd, UI_SET_PHYS_STR(18), PHYS_STR);
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#else
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fprintf(stderr, "UI_SET_PHYS_STR unavailable.\n");
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#endif
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#if defined(UI_SET_UNIQ_STR)
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ioctl(fd, UI_SET_UNIQ_STR(18), PHYS_STR);
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#else
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fprintf(stderr, "UI_SET_UNIQ_STR unavailable.\n");
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#endif
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ioctl(fd, UI_SET_PROPBIT, INPUT_PROP_ACCELEROMETER);
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ioctl(fd, UI_SET_EVBIT, EV_ABS);
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#if defined(INCLUDE_TIMESTAMP)
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ioctl(fd, UI_SET_EVBIT, EV_MSC);
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ioctl(fd, UI_SET_MSCBIT, MSC_TIMESTAMP);
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#endif
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ioctl(fd, UI_SET_ABSBIT, ABS_X);
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ioctl(fd, UI_SET_ABSBIT, ABS_Y);
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ioctl(fd, UI_SET_ABSBIT, ABS_Z);
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ioctl(fd, UI_SET_ABSBIT, ABS_RX);
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ioctl(fd, UI_SET_ABSBIT, ABS_RY);
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ioctl(fd, UI_SET_ABSBIT, ABS_RZ);
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//ioctl(fd, UI_SET_KEYBIT, BTN_TRIGGER);
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//ioctl(fd, UI_SET_KEYBIT, BTN_THUMB);
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struct uinput_abs_setup devAbsX = {0};
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devAbsX.code = ABS_X;
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devAbsX.absinfo.minimum = -ACCEL_RANGE;
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devAbsX.absinfo.maximum = ACCEL_RANGE;
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devAbsX.absinfo.resolution = 255; // 255 units = 1g
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devAbsX.absinfo.fuzz = 5;
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devAbsX.absinfo.flat = 0;
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if(ioctl(fd, UI_ABS_SETUP, &devAbsX) < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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struct uinput_abs_setup devAbsY = {0};
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devAbsY.code = ABS_Y;
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devAbsY.absinfo.minimum = -ACCEL_RANGE;
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devAbsY.absinfo.maximum = ACCEL_RANGE;
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devAbsY.absinfo.resolution = 255; // 255 units = 1g
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devAbsY.absinfo.fuzz = 5;
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devAbsY.absinfo.flat = 0;
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if(ioctl(fd, UI_ABS_SETUP, &devAbsY) < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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struct uinput_abs_setup devAbsZ = {0};
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devAbsZ.code = ABS_Z;
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devAbsZ.absinfo.minimum = -ACCEL_RANGE;
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devAbsZ.absinfo.maximum = ACCEL_RANGE;
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devAbsZ.absinfo.resolution = 255; // 255 units = 1g
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devAbsZ.absinfo.fuzz = 5;
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devAbsZ.absinfo.flat = 0;
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if(ioctl(fd, UI_ABS_SETUP, &devAbsZ) < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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struct uinput_abs_setup devAbsRX = {0};
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devAbsRX.code = ABS_RX;
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devAbsRX.absinfo.minimum = -GYRO_RANGE;
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devAbsRX.absinfo.maximum = GYRO_RANGE;
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devAbsRX.absinfo.resolution = 1; // 1 unit = 1 degree/s
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devAbsRX.absinfo.fuzz = 0;
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devAbsRX.absinfo.flat = GYRO_DEADZONE;
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if(ioctl(fd, UI_ABS_SETUP, &devAbsRX) < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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struct uinput_abs_setup devAbsRY = {0};
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devAbsRY.code = ABS_RY;
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devAbsRY.absinfo.minimum = -GYRO_RANGE;
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devAbsRY.absinfo.maximum = GYRO_RANGE;
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devAbsRY.absinfo.resolution = 1; // 1 unit = 1 degree/s
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devAbsRY.absinfo.fuzz = 0;
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devAbsRY.absinfo.flat = GYRO_DEADZONE;
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if(ioctl(fd, UI_ABS_SETUP, &devAbsRY) < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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struct uinput_abs_setup devAbsRZ = {0};
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devAbsRZ.code = ABS_RZ;
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devAbsRZ.absinfo.minimum = -GYRO_RANGE;
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devAbsRZ.absinfo.maximum = GYRO_RANGE;
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devAbsRZ.absinfo.resolution = 1; // 1 unit = 1 degree/s
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devAbsRZ.absinfo.fuzz = 0;
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devAbsRZ.absinfo.flat = GYRO_DEADZONE;
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if(ioctl(fd, UI_ABS_SETUP, &devAbsRZ) < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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if(ioctl(fd, UI_DEV_SETUP, &dev) < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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if(ioctl(fd, UI_DEV_CREATE) < 0) {
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fd = -1;
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close(fd);
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goto create_imu_uinput_err;
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}
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create_imu_uinput_err:
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return fd;
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}
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void *virt_evdev_thread_func(void *ptr) {
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devices_status_t *const stats = (devices_status_t*)ptr;
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const int gamepad_fd = create_gamepad_uinput();
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if (gamepad_fd < 0) {
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fprintf(stderr, "Unable to create the virtual evdev gamepad device: %d\n", gamepad_fd);
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return NULL;
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}
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const int imu_fd = create_imu_uinput();
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if (imu_fd < 0) {
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fprintf(stderr, "Unable to create the virtual evdev imu device: %d\n", gamepad_fd);
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return NULL;
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}
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for (;;) {
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usleep(1250);
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const int lock_res = pthread_mutex_lock(&stats->mutex);
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if (lock_res != 0) {
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printf("Unable to lock gamepad mutex: %d\n", lock_res);
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continue;
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}
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// main virtual device logic
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{
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//event(fd, &stats->gamepad);
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if (stats->gamepad.connected) {
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// TODO: do whatever it takes...
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} else {
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pthread_mutex_unlock(&stats->mutex);
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printf("kbd&mouse has been terminated: closing the device.\n");
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break;
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}
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}
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pthread_mutex_unlock(&stats->mutex);
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}
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return NULL;
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}
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/*
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static void emit_ev(output_dev_t *const out_dev, const in_message_t *const msg) {
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// if events are flagged as do not emit... Do NOT emit!
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if (msg->flags & INPUT_FILTER_FLAGS_DO_NOT_EMIT) {
|
|
return;
|
|
}
|
|
|
|
int fd = out_dev->gamepad_fd;
|
|
const uint32_t msg_flags = msg->data.event.ev_flags;
|
|
if ((msg_flags & EV_MESSAGE_FLAGS_IMU) != 0) {
|
|
fd = out_dev->imu_fd;
|
|
} else if ((msg_flags & EV_MESSAGE_FLAGS_MOUSE) != 0) {
|
|
fd = out_dev->mouse_fd;
|
|
} else {
|
|
fd = out_dev->gamepad_fd;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < msg->data.event.ev_count; ++i) {
|
|
struct input_event ev = {
|
|
.code = msg->data.event.ev[i].code,
|
|
.type = msg->data.event.ev[i].type,
|
|
.value = msg->data.event.ev[i].value,
|
|
.time = msg->data.event.ev[i].time,
|
|
};
|
|
|
|
if ((msg_flags & EV_MESSAGE_FLAGS_PRESERVE_TIME) == 0) {
|
|
gettimeofday(&ev.time, NULL);
|
|
}
|
|
|
|
#if defined(INCLUDE_OUTPUT_DEBUG)
|
|
printf(
|
|
"Output: Received event %s (%s): %d\n",
|
|
libevdev_event_type_get_name(ev.type),
|
|
libevdev_event_code_get_name(ev.type, ev.code),
|
|
ev.value
|
|
);
|
|
#endif
|
|
|
|
const ssize_t written = write(fd, (void*)&ev, sizeof(ev));
|
|
if (written != sizeof(ev)) {
|
|
fprintf(
|
|
stderr,
|
|
"Error writing event %s %s %d: written %ld bytes out of %ld\n",
|
|
libevdev_event_type_get_name(ev.type),
|
|
libevdev_event_code_get_name(ev.type, ev.code),
|
|
ev.value,
|
|
written,
|
|
sizeof(ev)
|
|
);
|
|
}
|
|
}
|
|
|
|
#if defined(INCLUDE_TIMESTAMP)
|
|
gettimeofday(&now, NULL);
|
|
const struct input_event timestamp_ev = {
|
|
.code = MSC_TIMESTAMP,
|
|
.type = EV_MSC,
|
|
.value = (now.tv_sec - secAtInit)*1000000 + (now.tv_usec - usecAtInit),
|
|
.time = now,
|
|
};
|
|
const ssize_t timestamp_written = write(fd, (void*)×tamp_ev, sizeof(timestamp_ev));
|
|
if (timestamp_written != sizeof(timestamp_ev)) {
|
|
fprintf(stderr, "Error in sync: written %ld bytes out of %ld\n", timestamp_written, sizeof(timestamp_ev));
|
|
}
|
|
#endif
|
|
|
|
struct timeval now = {0};
|
|
gettimeofday(&now, NULL);
|
|
const struct input_event syn_ev = {
|
|
.code = SYN_REPORT,
|
|
.type = EV_SYN,
|
|
.value = 0,
|
|
.time = now,
|
|
};
|
|
const ssize_t sync_written = write(fd, (void*)&syn_ev, sizeof(syn_ev));
|
|
if (sync_written != sizeof(syn_ev)) {
|
|
fprintf(stderr, "Error in sync: written %ld bytes out of %ld\n", sync_written, sizeof(syn_ev));
|
|
}
|
|
}
|
|
*/
|