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path: root/drivers/media/video/ivtv/ivtv-irq.c
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Diffstat (limited to 'drivers/media/video/ivtv/ivtv-irq.c')
-rw-r--r--drivers/media/video/ivtv/ivtv-irq.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/media/video/ivtv/ivtv-irq.c b/drivers/media/video/ivtv/ivtv-irq.c
index 12d36ca91d5..fea1ec33b0d 100644
--- a/drivers/media/video/ivtv/ivtv-irq.c
+++ b/drivers/media/video/ivtv/ivtv-irq.c
@@ -25,6 +25,7 @@
#include "ivtv-mailbox.h"
#include "ivtv-vbi.h"
#include "ivtv-yuv.h"
+#include <media/v4l2-event.h>
#define DMA_MAGIC_COOKIE 0x000001fe
@@ -752,7 +753,7 @@ static void ivtv_irq_vsync(struct ivtv *itv)
* to determine the line being displayed and ensure we handle
* one vsync per frame.
*/
- unsigned int frame = read_reg(0x28c0) & 1;
+ unsigned int frame = read_reg(IVTV_REG_DEC_LINE_FIELD) & 1;
struct yuv_playback_info *yi = &itv->yuv_info;
int last_dma_frame = atomic_read(&yi->next_dma_frame);
struct yuv_frame_info *f = &yi->new_frame_info[last_dma_frame];
@@ -778,6 +779,14 @@ static void ivtv_irq_vsync(struct ivtv *itv)
}
}
if (frame != (itv->last_vsync_field & 1)) {
+ static const struct v4l2_event evtop = {
+ .type = V4L2_EVENT_VSYNC,
+ .u.vsync.field = V4L2_FIELD_TOP,
+ };
+ static const struct v4l2_event evbottom = {
+ .type = V4L2_EVENT_VSYNC,
+ .u.vsync.field = V4L2_FIELD_BOTTOM,
+ };
struct ivtv_stream *s = ivtv_get_output_stream(itv);
itv->last_vsync_field += 1;
@@ -791,10 +800,12 @@ static void ivtv_irq_vsync(struct ivtv *itv)
if (test_bit(IVTV_F_I_EV_VSYNC_ENABLED, &itv->i_flags)) {
set_bit(IVTV_F_I_EV_VSYNC, &itv->i_flags);
wake_up(&itv->event_waitq);
+ if (s)
+ wake_up(&s->waitq);
}
+ if (s && s->vdev)
+ v4l2_event_queue(s->vdev, frame ? &evtop : &evbottom);
wake_up(&itv->vsync_waitq);
- if (s)
- wake_up(&s->waitq);
/* Send VBI to saa7127 */
if (frame && (itv->output_mode == OUT_PASSTHROUGH ||
@@ -852,9 +863,11 @@ irqreturn_t ivtv_irq_handler(int irq, void *dev_id)
*/
if (~itv->irqmask & IVTV_IRQ_DEC_VSYNC) {
/* vsync is enabled, see if we're in a new field */
- if ((itv->last_vsync_field & 1) != (read_reg(0x28c0) & 1)) {
+ if ((itv->last_vsync_field & 1) !=
+ (read_reg(IVTV_REG_DEC_LINE_FIELD) & 1)) {
/* New field, looks like we missed it */
- IVTV_DEBUG_YUV("VSync interrupt missed %d\n",read_reg(0x28c0)>>16);
+ IVTV_DEBUG_YUV("VSync interrupt missed %d\n",
+ read_reg(IVTV_REG_DEC_LINE_FIELD) >> 16);
vsync_force = 1;
}
}