[media] OMAP_VOUT: CLEANUP: Remove redundant code from omap_vout_isr

Currently, there is a lot of redundant code is between DPI and VENC panels, this
can be made common by moving out field/interlace specific code to a separate
function called omapvid_handle_interlace_display(). There is no functional
change made.

Signed-off-by: Archit Taneja <archit@ti.com>
Reviewed-by: Sumit Semwal <sumit.semwal@ti.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 11f5638..7bfe577 100644 (file)
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -523,10 +523,50 @@ static int omapvid_apply_changes(struct omap_vout_device *vout)
        return 0;
 }
 
+static int omapvid_handle_interlace_display(struct omap_vout_device *vout,
+               unsigned int irqstatus, struct timeval timevalue)
+{
+       u32 fid;
+
+       if (vout->first_int) {
+               vout->first_int = 0;
+               goto err;
+       }
+
+       if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
+               fid = 1;
+       else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
+               fid = 0;
+       else
+               goto err;
+
+       vout->field_id ^= 1;
+       if (fid != vout->field_id) {
+               if (fid == 0)
+                       vout->field_id = fid;
+       } else if (0 == fid) {
+               if (vout->cur_frm == vout->next_frm)
+                       goto err;
+
+               vout->cur_frm->ts = timevalue;
+               vout->cur_frm->state = VIDEOBUF_DONE;
+               wake_up_interruptible(&vout->cur_frm->done);
+               vout->cur_frm = vout->next_frm;
+       } else {
+               if (list_empty(&vout->dma_queue) ||
+                               (vout->cur_frm != vout->next_frm))
+                       goto err;
+       }
+
+       return vout->field_id;
+err:
+       return 0;
+}
+
 static void omap_vout_isr(void *arg, unsigned int irqstatus)
 {
-       int ret;
-       u32 addr, fid;
+       int ret, fid;
+       u32 addr;
        struct omap_overlay *ovl;
        struct timeval timevalue;
        struct omapvideo_info *ovid;
@@ -547,107 +587,59 @@ static void omap_vout_isr(void *arg, unsigned int irqstatus)
        spin_lock(&vout->vbq_lock);
        do_gettimeofday(&timevalue);
 
-       if (cur_display->type != OMAP_DISPLAY_TYPE_VENC) {
-               switch (cur_display->type) {
-               case OMAP_DISPLAY_TYPE_DPI:
-                       if (!(irqstatus & (DISPC_IRQ_VSYNC | DISPC_IRQ_VSYNC2)))
-                               goto vout_isr_err;
-                       break;
-               case OMAP_DISPLAY_TYPE_HDMI:
-                       if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
-                               goto vout_isr_err;
-                       break;
-               default:
+       switch (cur_display->type) {
+       case OMAP_DISPLAY_TYPE_DPI:
+               if (!(irqstatus & (DISPC_IRQ_VSYNC | DISPC_IRQ_VSYNC2)))
                        goto vout_isr_err;
-               }
-               if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
-                       vout->cur_frm->ts = timevalue;
-                       vout->cur_frm->state = VIDEOBUF_DONE;
-                       wake_up_interruptible(&vout->cur_frm->done);
-                       vout->cur_frm = vout->next_frm;
-               }
-               vout->first_int = 0;
-               if (list_empty(&vout->dma_queue))
+               break;
+       case OMAP_DISPLAY_TYPE_VENC:
+               fid = omapvid_handle_interlace_display(vout, irqstatus,
+                               timevalue);
+               if (!fid)
                        goto vout_isr_err;
+               break;
+       case OMAP_DISPLAY_TYPE_HDMI:
+               if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
+                       goto vout_isr_err;
+               break;
+       default:
+               goto vout_isr_err;
+       }
 
-               vout->next_frm = list_entry(vout->dma_queue.next,
-                               struct videobuf_buffer, queue);
-               list_del(&vout->next_frm->queue);
-
-               vout->next_frm->state = VIDEOBUF_ACTIVE;
-
-               addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
-                       + vout->cropped_offset;
+       if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
+               vout->cur_frm->ts = timevalue;
+               vout->cur_frm->state = VIDEOBUF_DONE;
+               wake_up_interruptible(&vout->cur_frm->done);
+               vout->cur_frm = vout->next_frm;
+       }
 
-               /* First save the configuration in ovelray structure */
-               ret = omapvid_init(vout, addr);
-               if (ret)
-                       printk(KERN_ERR VOUT_NAME
-                               "failed to set overlay info\n");
-               /* Enable the pipeline and set the Go bit */
-               ret = omapvid_apply_changes(vout);
-               if (ret)
-                       printk(KERN_ERR VOUT_NAME "failed to change mode\n");
-       } else {
+       vout->first_int = 0;
+       if (list_empty(&vout->dma_queue))
+               goto vout_isr_err;
 
-               if (vout->first_int) {
-                       vout->first_int = 0;
-                       goto vout_isr_err;
-               }
-               if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
-                       fid = 1;
-               else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
-                       fid = 0;
-               else
-                       goto vout_isr_err;
+       vout->next_frm = list_entry(vout->dma_queue.next,
+                       struct videobuf_buffer, queue);
+       list_del(&vout->next_frm->queue);
 
-               vout->field_id ^= 1;
-               if (fid != vout->field_id) {
-                       if (0 == fid)
-                               vout->field_id = fid;
+       vout->next_frm->state = VIDEOBUF_ACTIVE;
 
-                       goto vout_isr_err;
-               }
-               if (0 == fid) {
-                       if (vout->cur_frm == vout->next_frm)
-                               goto vout_isr_err;
-
-                       vout->cur_frm->ts = timevalue;
-                       vout->cur_frm->state = VIDEOBUF_DONE;
-                       wake_up_interruptible(&vout->cur_frm->done);
-                       vout->cur_frm = vout->next_frm;
-               } else if (1 == fid) {
-                       if (list_empty(&vout->dma_queue) ||
-                                       (vout->cur_frm != vout->next_frm))
-                               goto vout_isr_err;
-
-                       vout->next_frm = list_entry(vout->dma_queue.next,
-                                       struct videobuf_buffer, queue);
-                       list_del(&vout->next_frm->queue);
-
-                       vout->next_frm->state = VIDEOBUF_ACTIVE;
-                       addr = (unsigned long)
-                               vout->queued_buf_addr[vout->next_frm->i] +
-                               vout->cropped_offset;
-                       /* First save the configuration in ovelray structure */
-                       ret = omapvid_init(vout, addr);
-                       if (ret)
-                               printk(KERN_ERR VOUT_NAME
-                                               "failed to set overlay info\n");
-                       /* Enable the pipeline and set the Go bit */
-                       ret = omapvid_apply_changes(vout);
-                       if (ret)
-                               printk(KERN_ERR VOUT_NAME
-                                               "failed to change mode\n");
-               }
+       addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
+               + vout->cropped_offset;
 
-       }
+       /* First save the configuration in ovelray structure */
+       ret = omapvid_init(vout, addr);
+       if (ret)
+               printk(KERN_ERR VOUT_NAME
+                       "failed to set overlay info\n");
+       /* Enable the pipeline and set the Go bit */
+       ret = omapvid_apply_changes(vout);
+       if (ret)
+               printk(KERN_ERR VOUT_NAME "failed to change mode\n");
 
 vout_isr_err:
        spin_unlock(&vout->vbq_lock);
 }
 
-
 /* Video buffer call backs */
 
 /*