8 #include <linux/input.h>
11 #include "../common/common.h"
12 #include "../common/input.h"
15 #define BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
16 (1 << ((x) & (sizeof(keybits[0])*8-1))))
18 int in_evdev_probe(void)
24 int u, ret, fd, keybits[KEY_MAX/sizeof(int)];
25 int support = 0, count = 0;
28 snprintf(name, sizeof(name), "/dev/input/event%d", i);
29 fd = open(name, O_RDONLY|O_NONBLOCK);
33 /* check supported events */
34 ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
36 printf("in_evdev: ioctl failed on %s\n", name);
40 if (!(support & (1 << EV_KEY)))
43 ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
45 printf("in_evdev: ioctl failed on %s\n", name);
49 /* check for interesting keys */
50 for (u = 0; u < KEY_MAX; u++) {
51 if (BIT(u) && u != KEY_POWER && u != KEY_SLEEP)
58 strcpy(name, "evdev:");
59 ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
60 printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
61 name+6, count, support);
62 in_register(name, IN_DRVID_EVDEV, (void *)fd);
72 void in_evdev_free(void *drv_data)
77 int in_evdev_bind_count(void)
82 int in_evdev_update(void *drv_data, int *binds)
84 struct input_event ev[16];
85 int keybits[KEY_MAX/sizeof(int)];
86 int fd = (int)drv_data;
87 int result = 0, changed = 0;
91 rd = read(fd, ev, sizeof(ev));
92 if (rd < (int)sizeof(ev[0])) {
94 perror("in_evdev: read failed");
105 ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
107 perror("in_evdev: ioctl failed");
112 for (u = 0; u < KEY_MAX; u++) {
123 int in_evdev_update_menu(void **data, int count)
125 const int *fds = (const int *)data;
126 static int result = 0;
127 int i, ret, fdmax = -1;
128 int oldresult = result;
131 /* switch to blocking mode */
132 for (i = 0; i < count; i++) {
133 if (fds[i] > fdmax) fdmax = fds[i];
135 flags = (long)fcntl(fds[i], F_GETFL);
136 if ((int)flags == -1) {
137 perror("in_evdev: F_GETFL fcntl failed");
140 flags &= ~O_NONBLOCK;
141 ret = fcntl(fds[i], F_SETFL, flags);
143 perror("in_evdev: F_SETFL fcntl failed");
148 struct input_event ev[64];
153 for (i = 0; i < count; i++)
154 FD_SET(fds[i], &fdset);
156 ret = select(fdmax + 1, &fdset, NULL, NULL, NULL);
159 perror("in_evdev: select failed");
164 for (i = 0; i < count; i++)
165 if (FD_ISSET(fds[i], &fdset))
168 rd = read(fd, ev, sizeof(ev[0]) * 64);
169 if (rd < (int) sizeof(ev[0])) {
170 perror("in_evdev: error reading");
175 #define mapkey(o,k) \
177 if (ev[i].value) result |= k; \
180 for (i = 0; i < rd / sizeof(ev[0]); i++)
182 if (ev[i].type != EV_KEY || ev[i].value < 0 || ev[i].value > 1)
185 switch (ev[i].code) {
187 mapkey(KEY_UP, PBTN_UP);
188 mapkey(KEY_DOWN, PBTN_DOWN);
189 mapkey(KEY_LEFT, PBTN_LEFT);
190 mapkey(KEY_RIGHT, PBTN_RIGHT);
191 mapkey(KEY_ENTER, PBTN_EAST);
192 mapkey(KEY_ESC, PBTN_SOUTH);
197 if (oldresult != result) break;
200 /* switch back to non-blocking mode */
201 for (i = 0; i < count; i++) {
202 if (fds[i] > fdmax) fdmax = fds[i];
204 flags = (long)fcntl(fds[i], F_GETFL);
205 if ((int)flags == -1) {
206 perror("in_evdev: F_GETFL fcntl failed");
210 ret = fcntl(fds[i], F_SETFL, flags);
212 perror("in_evdev: F_SETFL fcntl failed");