Implement mouse cursor
Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
Change-Id: I66d6db7b3ed9cca50b469d125b36224332e06913
diff --git a/minuitwrp/events.c b/minuitwrp/events.c
index aecaf8f..94942ba 100644
--- a/minuitwrp/events.c
+++ b/minuitwrp/events.c
@@ -20,8 +20,11 @@
#include <dirent.h>
#include <sys/poll.h>
#include <limits.h>
-
#include <linux/input.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
#include "../common.h"
@@ -95,6 +98,9 @@
static struct pollfd ev_fds[MAX_DEVICES];
static struct ev evs[MAX_DEVICES];
static unsigned ev_count = 0;
+static struct timeval lastInputStat;
+static unsigned long lastInputMTime;
+static int has_mouse = 0;
static inline int ABS(int x) {
return x<0?-x:x;
@@ -239,12 +245,41 @@
return 0;
}
+#define BITS_PER_LONG (sizeof(long) * 8)
+#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
+#define OFF(x) ((x)%BITS_PER_LONG)
+#define LONG(x) ((x)/BITS_PER_LONG)
+#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
+static void check_mouse(int fd)
+{
+ if(has_mouse)
+ return;
+
+ unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
+ memset(bit, 0, sizeof(bit));
+ ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
+
+ if(!test_bit(EV_REL, bit[0]))
+ return;
+
+ ioctl(fd, EVIOCGBIT(EV_REL, KEY_MAX), bit[EV_REL]);
+ if(test_bit(REL_X, bit[EV_REL]) && test_bit(REL_Y, bit[EV_REL]))
+ has_mouse = 1;
+}
+
+int ev_has_mouse(void)
+{
+ return has_mouse;
+}
+
int ev_init(void)
{
DIR *dir;
struct dirent *de;
int fd;
+ has_mouse = 0;
+
dir = opendir("/dev/input");
if(dir != 0) {
while((de = readdir(dir))) {
@@ -260,23 +295,32 @@
/* Load virtualkeys if there are any */
vk_init(&evs[ev_count]);
+ check_mouse(fd);
+
ev_count++;
if(ev_count == MAX_DEVICES) break;
}
+ closedir(dir);
}
+ struct stat st;
+ if(stat("/dev/input", &st) >= 0)
+ lastInputMTime = st.st_mtime;
+ gettimeofday(&lastInputStat, NULL);
+
return 0;
}
void ev_exit(void)
{
- while (ev_count-- > 0) {
- if (evs[ev_count].vk_count) {
- free(evs[ev_count].vks);
- evs[ev_count].vk_count = 0;
+ while (ev_count-- > 0) {
+ if (evs[ev_count].vk_count) {
+ free(evs[ev_count].vks);
+ evs[ev_count].vk_count = 0;
+ }
+ close(ev_fds[ev_count].fd);
}
- close(ev_fds[ev_count].fd);
- }
+ ev_count = 0;
}
static int vk_inside_display(__s32 value, struct input_absinfo *info, int screen_size)
@@ -629,9 +673,25 @@
{
int r;
unsigned n;
+ struct timeval curr;
do {
- r = poll(ev_fds, ev_count, dont_wait ? 0 : -1);
+ gettimeofday(&curr, NULL);
+ if(curr.tv_sec - lastInputStat.tv_sec >= 2)
+ {
+ struct stat st;
+ stat("/dev/input", &st);
+ if (st.st_mtime > lastInputMTime)
+ {
+ LOGI("Reloading input devices\n");
+ ev_exit();
+ ev_init();
+ lastInputMTime = st.st_mtime;
+ }
+ lastInputStat = curr;
+ }
+
+ r = poll(ev_fds, ev_count, 0);
if(r > 0) {
for(n = 0; n < ev_count; n++) {
@@ -644,6 +704,8 @@
}
}
}
+
+ usleep(1000);
} while(dont_wait == 0);
return -1;