Clean up vmeta IRQ control

Rather than having two functions, one to enable and another to disable,
we can combine the two and take an argument to indicate what action is
required.  As these aren't part of the library API, we're free to make
this change.

1 files changed, 4 insertions, 15 deletions

diff --git a/vmeta_lib.c b/vmeta_lib.c
index c483754..6959a1f 100644
--- a/vmeta_lib.c
+++ b/vmeta_lib.c
@@ -261,24 +261,13 @@ static int vmeta_ioctl_ulong(unsigned cmd, unsigned long arg)
 	return ioctl(vdec->fd, cmd, arg);
 }
 
-// enable vmeta interrupt
-static void vdec_os_api_irq_enable(void)
+// control vmeta interrupt
+static void vdec_os_api_irq_ctrl(int state)
 {
 	vdec_os_driver_cb_t *vdec = vdec_iface;
-	int irq_on = 1;
-	write(vdec->fd, &irq_on, sizeof(int));
+	write(vdec->fd, &state, sizeof(state));
 }
 
-#if 0 // Not used
-// disable vmeta interrupt
-static void vdec_os_api_irq_disable(void)
-{
-	vdec_os_driver_cb_t *vdec = vdec_iface;
-	int irq_on = 0;
-	write(vdec->fd, &irq_on, sizeof(int));
-}
-#endif
-
 SIGN32 vdec_os_api_set_sync_timeout_isr(UNSG32 timeout)
 {
 	syncTimeout = timeout;
@@ -294,7 +283,7 @@ SIGN32 vdec_os_api_sync_event()
 	ufds.fd = vdec->fd;
 	ufds.events = POLLIN;
 
-	vdec_os_api_irq_enable();
+	vdec_os_api_irq_ctrl(1);
 	result = poll(&ufds, 1, syncTimeout);
 	if(result > 0)
 		return VDEC_OS_DRIVER_OK;