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input: proper support for absolute events

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Matheus
2026-05-12 21:06:15 -03:00
parent 3d02764ca9
commit 885a6d8a9f
2 changed files with 7 additions and 8 deletions
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kernel-src/include/kernel/input.h
+1
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@@ -212,6 +212,7 @@ struct input_device {
bitmap_t key_bits; bitmap_t key_bits;
bitmap_t rel_bits; bitmap_t rel_bits;
bitmap_t abs_bits; bitmap_t abs_bits;
input_absinfo_t abs_info[INPUT_ABS_CNT];
uint16_t id_bus; uint16_t id_bus;
uint16_t id_vendor; uint16_t id_vendor;
kernel-src/io/input.c
+6 -8
View File
@@ -334,14 +334,7 @@ static int input_listener_ioctl(int minor, unsigned long request, void *arg, int
if (!bitmap_get(&lis->device->abs_bits, abs_code)) if (!bitmap_get(&lis->device->abs_bits, abs_code))
return EINVAL; return EINVAL;
input_absinfo_t absinfo; return USERCOPY_POSSIBLY_TO_USER(arg, &lis->device->abs_info[abs_code], sizeof(input_absinfo_t));
absinfo.value = -1;
absinfo.min = -1;
absinfo.max = -1;
absinfo.fuzz = 0;
absinfo.flat = 0;
absinfo.res = 0;
return USERCOPY_POSSIBLY_TO_USER(arg, &absinfo, sizeof(input_absinfo_t));
} else { } else {
printf("input_ioctl: unhandled ioctl %lu (%u, %u, %u)\n", request, number, type, size); printf("input_ioctl: unhandled ioctl %lu (%u, %u, %u)\n", request, number, type, size);
return ENOTTY; return ENOTTY;
@@ -478,6 +471,11 @@ void input_queue_packet(input_device_t *dev, input_event_t *events, int count) {
long ipl = spinlock_acquire_raise_ipl(&dev->lock, IPL_INPUT); long ipl = spinlock_acquire_raise_ipl(&dev->lock, IPL_INPUT);
for (int i = 0; i < count; ++i) {
if (events[i].type == INPUT_EV_ABS && events[i].code < INPUT_ABS_CNT)
dev->abs_info[events[i].code].value = events[i].value;
}
list_for_each(&dev->listeners, node) { list_for_each(&dev->listeners, node) {
input_listener_t *lis = container_of(node, input_listener_t, node); input_listener_t *lis = container_of(node, input_listener_t, node);
input_queue_packet_internal(lis, events, count); input_queue_packet_internal(lis, events, count);