C++ (Cpp) v4l2_subdev_notify_eventの例

コード例 #1

ファイル: imx-media-fim.c プロジェクト: SantoshShilimkar/linux

static void send_fim_event(struct imx_media_fim *fim, unsigned long error)
{
	static const struct v4l2_event ev = {
		.type = V4L2_EVENT_IMX_FRAME_INTERVAL_ERROR,
	};

	v4l2_subdev_notify_event(fim->sd, &ev);
}

コード例 #2

ファイル: adv7180.c プロジェクト: 513855417/linux

static irqreturn_t adv7180_irq(int irq, void *devid)
{
	struct adv7180_state *state = devid;
	u8 isr3;

	mutex_lock(&state->mutex);
	isr3 = adv7180_read(state, ADV7180_REG_ISR3);
	/* clear */
	adv7180_write(state, ADV7180_REG_ICR3, isr3);

	if (isr3 & ADV7180_IRQ3_AD_CHANGE) {
		static const struct v4l2_event src_ch = {
			.type = V4L2_EVENT_SOURCE_CHANGE,
			.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
		};

		v4l2_subdev_notify_event(&state->sd, &src_ch);
	}
	mutex_unlock(&state->mutex);

	return IRQ_HANDLED;
}

static int adv7180_init(struct adv7180_state *state)
{
	int ret;

	/* ITU-R BT.656-4 compatible */
	ret = adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
			ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
	if (ret < 0)
		return ret;

	/* Manually set V bit end position in NTSC mode */
	return adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END,
					ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
}