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Implemented the timeout in hid_read_timeout() on Android

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This fixes detecting PS5 controllers connected over USB
This commit is contained in:
Sam Lantinga 2021-07-08 18:44:50 -07:00
parent e2234ee97c
commit f93e9047eb
1 changed files with 37 additions and 2 deletions
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39
src/hidapi/android/hid.cpp
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@ -1088,7 +1088,32 @@ int HID_API_EXPORT HID_API_CALL hid_write(hid_device *device, const unsigned ch
return -1; // Controller was disconnected return -1; // Controller was disconnected
} }
// TODO: Implement timeout? static uint32_t getms()
{
struct timeval now;
gettimeofday(&now, NULL);
return (uint32_t)(now.tv_sec * 1000 + now.tv_usec / 1000);
}
static void delayms(uint32_t ms)
{
int was_error;
struct timespec elapsed, tv;
/* Set the timeout interval */
elapsed.tv_sec = ms / 1000;
elapsed.tv_nsec = (ms % 1000) * 1000000;
do {
errno = 0;
tv.tv_sec = elapsed.tv_sec;
tv.tv_nsec = elapsed.tv_nsec;
was_error = nanosleep(&tv, &elapsed);
} while (was_error && (errno == EINTR));
}
int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *device, unsigned char *data, size_t length, int milliseconds) int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *device, unsigned char *data, size_t length, int milliseconds)
{ {
if ( device ) if ( device )
@ -1097,7 +1122,17 @@ int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *device, unsigned ch
hid_device_ref<CHIDDevice> pDevice = FindDevice( device->m_nId ); hid_device_ref<CHIDDevice> pDevice = FindDevice( device->m_nId );
if ( pDevice ) if ( pDevice )
{ {
return pDevice->GetInput( data, length ); int nResult = pDevice->GetInput( data, length );
if ( nResult == 0 && milliseconds > 0 )
{
uint32_t start = getms();
do
{
delayms( 1 );
nResult = pDevice->GetInput( data, length );
} while ( nResult == 0 && ( getms() - start ) < milliseconds );
}
return nResult;
} }
LOGV( "controller was disconnected" ); LOGV( "controller was disconnected" );
} }