mirror of
https://github.com/moparisthebest/uinput-mapper
synced 2024-11-22 08:12:14 -05:00
Second joystick; proper closing of inputs.
This commit is contained in:
Merlijn Wajer
parent
dc4c56bdfa
commit
f4ca6c4231
166
map.c
166
map.c
@ -18,7 +18,7 @@
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <signal.h>
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#include <linux/input.h>
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#include <linux/uinput.h>
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@ -52,6 +52,7 @@ static int get_key_num(char* name)
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return -1;
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}
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static int js[2];
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/* TODO:
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* - Use atexit() to free joysticks
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@ -59,25 +60,24 @@ static int get_key_num(char* name)
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* - Add proper datastructures to keep track
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*/
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void free_js(int sig) {
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int j;
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for(j = 0; j < 2; j++) {
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printf("Freeing joystick: %d\n", j);
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if (ioctl(js[j], UI_DEV_DESTROY) < 0) {
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perror("Error freeing joystick");
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}
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close(js[j]);
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}
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exit(1);
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}
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int main(int argc, char** argv) {
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int i, nowrite;
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int in, uin; /* fds */
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int i, j, nowrite;
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int in; /* fds */
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struct input_event e, je;
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struct uinput_user_dev uidev;
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/*
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* KEY_LEFT -> ABS_HAT0X
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* KEY_RIGHT -> ABS_HAT0X
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* KEY_UP -> ABS_HAT0Y
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* KEY_DOWN -> ABS_HAT0Y
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*
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* KEY_LEFTCTRL -> BTN_0
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* KEY_LEFTALT -> BTN_1
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* KEY_SPACE -> BTN_2
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*
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* KEY_1 -> BTN_3
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*/
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int abskeyevs[] = {
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ABS_HAT0X,
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ABS_HAT0Y,
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@ -85,7 +85,7 @@ int main(int argc, char** argv) {
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};
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int evkeys[] = {
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BTN_JOYSTICK,
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BTN_JOYSTICK, /* We need this to show up as Joystick */
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BTN_0,
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BTN_1,
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BTN_2,
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@ -93,6 +93,11 @@ int main(int argc, char** argv) {
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0
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};
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if(signal(SIGINT, free_js)) {
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printf("Atexit registration failed\n");
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return 1;
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}
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/* Open input and uinput */
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in = open(INPUT_PATH, O_RDONLY);
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if(in < 0) {
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@ -100,60 +105,62 @@ int main(int argc, char** argv) {
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return 1;
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}
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uin = open(UINPUT_PATH, O_WRONLY | O_NONBLOCK);
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if (uin < 0) {
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perror("open uin");
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return 2;
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}
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/* Register device opts */
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if (ioctl(uin, UI_SET_EVBIT, EV_ABS) < 0) {
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perror("ioctl EV_ABS");
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return 1;
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}
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if (ioctl(uin, UI_SET_EVBIT, EV_KEY) < 0) {
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perror("ioctl EV_KEY");
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return 1;
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}
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/* Every ``button'' needs to be registered */
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i = 0;
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while(abskeyevs[i] != 0) {
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if (ioctl(uin, UI_SET_ABSBIT, abskeyevs[i]) < 0) {
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perror("ioctl dynamic");
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for(j = 0; j < 2; j++) {
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js[j] = open(UINPUT_PATH, O_WRONLY | O_NONBLOCK);
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if (js[j] < 0) {
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perror("open js[j]");
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return 1;
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}
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i++;
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}
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i = 0;
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while(evkeys[i] != 0) {
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if (ioctl(uin, UI_SET_KEYBIT, evkeys[i]) < 0) {
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perror("ioctl dynamic 2");
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/* Register device opts */
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if (ioctl(js[j], UI_SET_EVBIT, EV_ABS) < 0) {
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perror("ioctl EV_ABS");
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return 1;
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}
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i++;
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}
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if (ioctl(js[j], UI_SET_EVBIT, EV_KEY) < 0) {
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perror("ioctl EV_KEY");
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return 1;
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}
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/* Every ``button'' needs to be registered */
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i = 0;
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while(abskeyevs[i] != 0) {
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if (ioctl(js[j], UI_SET_ABSBIT, abskeyevs[i]) < 0) {
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perror("ioctl dynamic");
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return 1;
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}
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i++;
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}
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i = 0;
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while(evkeys[i] != 0) {
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if (ioctl(js[j], UI_SET_KEYBIT, evkeys[i]) < 0) {
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perror("ioctl dynamic 2");
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return 1;
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}
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i++;
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}
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/* Allocate device info */
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memset(&uidev, '\0', sizeof(struct uinput_user_dev));
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snprintf(uidev.name, UINPUT_MAX_NAME_SIZE, "key2joy:1");
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/* Allocate device info */
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memset(&uidev, '\0', sizeof(struct uinput_user_dev));
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snprintf(uidev.name, UINPUT_MAX_NAME_SIZE, "key2joy:1");
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uidev.id.bustype = BUS_USB;
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uidev.id.vendor = 0x42;
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uidev.id.product = 0xbebe;
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uidev.id.version = 1;
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uidev.id.bustype = BUS_USB;
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uidev.id.vendor = 0x42;
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uidev.id.product = 0xbebe;
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uidev.id.version = 1;
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if (write(uin, &uidev, sizeof(uidev)) < 0) {
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perror("write");
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return -1;
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}
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if (write(js[j], &uidev, sizeof(uidev)) < 0) {
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perror("write");
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return -1;
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}
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if (ioctl(uin, UI_DEV_CREATE)) {
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perror("ioctl create");
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return 1;
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if (ioctl(js[j], UI_DEV_CREATE)) {
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perror("ioctl create");
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return 1;
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}
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}
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/* Do it! */
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@ -165,30 +172,47 @@ int main(int argc, char** argv) {
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memset(&je, '\0', sizeof(struct input_event));
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nowrite = 0;
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j = 0;
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if (e.type == EV_KEY) {
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switch(e.code) {
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case KEY_UP:
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je.type = EV_ABS; je.code = ABS_HAT0Y; je.value = -e.value; break;
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je.type = EV_ABS; je.code = ABS_HAT0Y; je.value = -e.value; j = 0; break;
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case KEY_DOWN:
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je.type = EV_ABS; je.code = ABS_HAT0Y; je.value = e.value; break;
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je.type = EV_ABS; je.code = ABS_HAT0Y; je.value = e.value; j = 0; break;
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case KEY_LEFT:
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je.type = EV_ABS; je.code = ABS_HAT0X; je.value = -e.value; break;
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je.type = EV_ABS; je.code = ABS_HAT0X; je.value = -e.value; j = 0; break;
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case KEY_RIGHT:
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je.type = EV_ABS; je.code = ABS_HAT0X; je.value = e.value; break;
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je.type = EV_ABS; je.code = ABS_HAT0X; je.value = e.value; j = 0; break;
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case KEY_LEFTCTRL:
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je.type = EV_KEY; je.code = BTN_0; je.value = e.value; break;
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je.type = EV_KEY; je.code = BTN_0; je.value = e.value; j = 0; break;
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case KEY_LEFTALT:
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je.type = EV_KEY; je.code = BTN_1; je.value = e.value; break;
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je.type = EV_KEY; je.code = BTN_1; je.value = e.value; j = 0; break;
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case KEY_SPACE:
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je.type = EV_KEY; je.code = BTN_2; je.value = e.value; break;
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je.type = EV_KEY; je.code = BTN_2; je.value = e.value; j = 0; break;
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case KEY_1:
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je.type = EV_KEY; je.code = BTN_3; je.value = e.value; break;
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je.type = EV_KEY; je.code = BTN_3; je.value = e.value; j = 0; break;
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case KEY_R:
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je.type = EV_ABS; je.code = ABS_HAT0Y; je.value = -e.value; j = 1; break;
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case KEY_F:
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je.type = EV_ABS; je.code = ABS_HAT0Y; je.value = e.value; j = 1; break;
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case KEY_D:
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je.type = EV_ABS; je.code = ABS_HAT0X; je.value = -e.value; j = 1; break;
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case KEY_G:
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je.type = EV_ABS; je.code = ABS_HAT0X; je.value = e.value; j = 1; break;
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case KEY_A:
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je.type = EV_KEY; je.code = BTN_0; je.value = e.value; j = 1; break;
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case KEY_S:
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je.type = EV_KEY; je.code = BTN_1; je.value = e.value; j = 1; break;
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case KEY_Q:
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je.type = EV_KEY; je.code = BTN_2; je.value = e.value; j = 1; break;
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case KEY_2:
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je.type = EV_KEY; je.code = BTN_3; je.value = e.value; j = 1; break;
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default:
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nowrite = 1;
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}
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if (nowrite == 0) {
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if(write(uin, &je, sizeof(struct input_event)) < 0) {
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if(write(js[j], &je, sizeof(struct input_event)) < 0) {
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perror("EV_ABS Write event");
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return -1;
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}
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@ -204,7 +228,7 @@ int main(int argc, char** argv) {
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je.code = 0;
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je.value = 0;
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if (write(uin, &je, sizeof(struct input_event)) < 0) {
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if (write(js[j], &je, sizeof(struct input_event)) < 0) {
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perror("SYN write event");
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return -1;
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}
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