C++ (Cpp) vpif_schedule_next_buffer Examples

Example #1

/**
 * vpif_channel_isr : ISR handler for vpif capture
 * @irq: irq number
 * @dev_id: dev_id ptr
 *
 * It changes status of the captured buffer, takes next buffer from the queue
 * and sets its address in VPIF  registers
 */
static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
{
	struct vpif_device *dev = &vpif_obj;
	struct common_obj *common;
	struct channel_obj *ch;
	enum v4l2_field field;
	int channel_id = 0;
	int fid = -1, i;

	channel_id = *(int *)(dev_id);
	ch = dev->dev[channel_id];

	field = ch->common[VPIF_VIDEO_INDEX].fmt.fmt.pix.field;

	for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) {
		common = &ch->common[i];
		/* skip If streaming is not started in this channel */
		if (0 == common->started)
			continue;

		/* Check the field format */
		if (1 == ch->vpifparams.std_info.frm_fmt) {
			/* Progressive mode */
			if (list_empty(&common->dma_queue))
				continue;

			if (!channel_first_int[i][channel_id])
				vpif_process_buffer_complete(common);

			channel_first_int[i][channel_id] = 0;

			vpif_schedule_next_buffer(common);


			channel_first_int[i][channel_id] = 0;
		} else {
			/**
			 * Interlaced mode. If it is first interrupt, ignore
			 * it
			 */
			if (channel_first_int[i][channel_id]) {
				channel_first_int[i][channel_id] = 0;
				continue;
			}
			if (0 == i) {
				ch->field_id ^= 1;
				/* Get field id from VPIF registers */
				fid = vpif_channel_getfid(ch->channel_id);
				if (fid != ch->field_id) {
					/**
					 * If field id does not match stored
					 * field id, make them in sync
					 */
					if (0 == fid)
						ch->field_id = fid;
					return IRQ_HANDLED;
				}
			}
			/* device field id and local field id are in sync */
			if (0 == fid) {
				/* this is even field */
				if (common->cur_frm == common->next_frm)
					continue;

				/* mark the current buffer as done */
				vpif_process_buffer_complete(common);
			} else if (1 == fid) {
				/* odd field */
				if (list_empty(&common->dma_queue) ||
				    (common->cur_frm != common->next_frm))
					continue;

				vpif_schedule_next_buffer(common);
			}
		}
	}
	return IRQ_HANDLED;
}

Example #2

File: vpif_capture.c Project: DirtyDroidX/android_kernel_htc_m8ul

static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
{
	struct vpif_device *dev = &vpif_obj;
	struct common_obj *common;
	struct channel_obj *ch;
	enum v4l2_field field;
	int channel_id = 0;
	int fid = -1, i;

	channel_id = *(int *)(dev_id);
	ch = dev->dev[channel_id];

	field = ch->common[VPIF_VIDEO_INDEX].fmt.fmt.pix.field;

	for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) {
		common = &ch->common[i];
		
		if (0 == common->started)
			continue;

		
		if (1 == ch->vpifparams.std_info.frm_fmt) {
			
			if (list_empty(&common->dma_queue))
				continue;

			if (!channel_first_int[i][channel_id])
				vpif_process_buffer_complete(common);

			channel_first_int[i][channel_id] = 0;

			vpif_schedule_next_buffer(common);


			channel_first_int[i][channel_id] = 0;
		} else {
			if (channel_first_int[i][channel_id]) {
				channel_first_int[i][channel_id] = 0;
				continue;
			}
			if (0 == i) {
				ch->field_id ^= 1;
				
				fid = vpif_channel_getfid(ch->channel_id);
				if (fid != ch->field_id) {
					if (0 == fid)
						ch->field_id = fid;
					return IRQ_HANDLED;
				}
			}
			
			if (0 == fid) {
				
				if (common->cur_frm == common->next_frm)
					continue;

				
				vpif_process_buffer_complete(common);
			} else if (1 == fid) {
				
				if (list_empty(&common->dma_queue) ||
				    (common->cur_frm != common->next_frm))
					continue;

				vpif_schedule_next_buffer(common);
			}
		}
	}
	return IRQ_HANDLED;
}