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input: add hack to allow abs-only devices

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this is mainly for pandora nubs.


git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@926 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2011-03-21 00:53:04 +00:00
parent 090c1b1a30
commit 0c9246818b
2 changed files with 29 additions and 21 deletions
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48
linux/in_evdev.c
View file

@ -49,6 +49,8 @@ typedef struct {
#define KEYBITS_BIT_CLEAR(x) (keybits[(x)/sizeof(keybits[0])/8] &= \
~(1 << ((x) & (sizeof(keybits[0])*8-1))))
int in_evdev_allow_abs_only;
static const char * const in_evdev_prefix = "evdev:";
static const char * const in_evdev_keys[KEY_CNT] = {
[0 ... KEY_MAX] = NULL,
@ -151,7 +153,7 @@ static void in_evdev_probe(void)
for (i = 0;; i++)
{
int support = 0, count = 0;
int u, ret, fd, kc_first, kc_last;
int u, ret, fd, kc_first = KEY_MAX, kc_last = 0;
in_evdev_t *dev;
char name[64];
@ -170,30 +172,29 @@ static void in_evdev_probe(void)
goto skip;
}
if (!(support & (1 << EV_KEY)))
goto skip;
if (support & (1 << EV_KEY)) {
ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
if (ret == -1) {
printf("in_evdev: ioctl failed on %s\n", name);
goto skip;
}
ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
if (ret == -1) {
printf("in_evdev: ioctl failed on %s\n", name);
goto skip;
}
/* check for interesting keys */
kc_first = KEY_MAX;
kc_last = 0;
for (u = 0; u < KEY_CNT; u++) {
if (KEYBITS_BIT(u)) {
if (u < kc_first)
kc_first = u;
if (u > kc_last)
kc_last = u;
if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH)
count++;
/* check for interesting keys */
for (u = 0; u < KEY_CNT; u++) {
if (KEYBITS_BIT(u)) {
if (u < kc_first)
kc_first = u;
if (u > kc_last)
kc_last = u;
if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH)
count++;
if (u == BTN_TOUCH) /* we can't deal with ts currently */
goto skip;
}
}
}
if (count == 0)
if (count == 0 && !in_evdev_allow_abs_only)
goto skip;
dev = calloc(1, sizeof(*dev));
@ -237,6 +238,11 @@ static void in_evdev_probe(void)
}
no_abs:
if (count == 0 && dev->abs_lzone == 0) {
free(dev);
goto skip;
}
dev->fd = fd;
dev->kc_first = kc_first;
dev->kc_last = kc_last;

2
linux/in_evdev.h
View file

@ -1,4 +1,6 @@
extern int in_evdev_allow_abs_only;
void in_evdev_init(void *vdrv);
int in_evdev_update(void *drv_data, const int *binds, int *result);