media: coda: implement decoder source change event (236306be) · Commits · 戴 / test

drivers/media/platform/coda/coda-common.c

+20 −0

Original line number	Diff line number	Diff line
		@@ -1255,9 +1255,16 @@ static int coda_s_parm(struct file file, void fh, struct v4l2_streamparm *a)
		static int coda_subscribe_event(struct v4l2_fh *fh,
		const struct v4l2_event_subscription *sub)
		{
		struct coda_ctx *ctx = fh_to_ctx(fh);

		switch (sub->type) {
		case V4L2_EVENT_EOS:
		return v4l2_event_subscribe(fh, sub, 0, NULL);
		case V4L2_EVENT_SOURCE_CHANGE:
		if (ctx->inst_type == CODA_INST_DECODER)
		return v4l2_event_subscribe(fh, sub, 0, NULL);
		else
		return -EINVAL;
		default:
		return v4l2_ctrl_subscribe_event(fh, sub);
		}
		@@ -1642,6 +1649,16 @@ void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
		}
		}

		static void coda_queue_source_change_event(struct coda_ctx *ctx)
		{
		static const struct v4l2_event source_change_event = {
		.type = V4L2_EVENT_SOURCE_CHANGE,
		.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
		};

		v4l2_event_queue_fh(&ctx->fh, &source_change_event);
		}

		static void coda_buf_queue(struct vb2_buffer *vb)
		{
		struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
		@@ -1696,6 +1713,9 @@ static void coda_buf_queue(struct vb2_buffer *vb)
		&ctx->seq_init_work);
		flush_work(&ctx->seq_init_work);
		}

		if (ctx->initialized)
		coda_queue_source_change_event(ctx);
		}
		} else {
		if (ctx->inst_type == CODA_INST_ENCODER &&