media: iris: handle streamoff/on from client in dynamic resolution change

The decoder is stopped after it completes the dynamic resolution change
sequence. Handle VIDIOC_STREAMOFF() and VIDIOC_STREAMON() on the CAPTURE
queue to resume the decoding process.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell XPS 13 9345)
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

1 files changed, 58 insertions, 0 deletions

diff --git a/drivers/media/platform/qcom/iris/iris_buffer.c b/drivers/media/platform/qcom/iris/iris_buffer.c
index de1267c387f1..dc096e5e95bf 100644
--- a/drivers/media/platform/qcom/iris/iris_buffer.c
+++ b/drivers/media/platform/qcom/iris/iris_buffer.c
@@ -404,6 +404,47 @@ int iris_destroy_internal_buffers(struct iris_inst *inst, u32 plane)
 	return 0;
 }
 
+static int iris_release_internal_buffers(struct iris_inst *inst,
+					 enum iris_buffer_type buffer_type)
+{
+	const struct iris_hfi_command_ops *hfi_ops = inst->core->hfi_ops;
+	struct iris_buffers *buffers = &inst->buffers[buffer_type];
+	struct iris_buffer *buffer, *next;
+	int ret;
+
+	list_for_each_entry_safe(buffer, next, &buffers->list, list) {
+		if (buffer->attr & BUF_ATTR_PENDING_RELEASE)
+			continue;
+		if (!(buffer->attr & BUF_ATTR_QUEUED))
+			continue;
+		ret = hfi_ops->session_release_buf(inst, buffer);
+		if (ret)
+			return ret;
+		buffer->attr |= BUF_ATTR_PENDING_RELEASE;
+	}
+
+	return 0;
+}
+
+static int iris_release_input_internal_buffers(struct iris_inst *inst)
+{
+	const struct iris_platform_data *platform_data = inst->core->iris_platform_data;
+	const u32 *internal_buf_type;
+	u32 internal_buffer_count, i;
+	int ret;
+
+	internal_buf_type = platform_data->dec_ip_int_buf_tbl;
+	internal_buffer_count = platform_data->dec_ip_int_buf_tbl_size;
+
+	for (i = 0; i < internal_buffer_count; i++) {
+		ret = iris_release_internal_buffers(inst, internal_buf_type[i]);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
 int iris_alloc_and_queue_persist_bufs(struct iris_inst *inst)
 {
 	struct iris_buffers *buffers = &inst->buffers[BUF_PERSIST];
@@ -435,6 +476,23 @@ int iris_alloc_and_queue_persist_bufs(struct iris_inst *inst)
 	return 0;
 }
 
+int iris_alloc_and_queue_input_int_bufs(struct iris_inst *inst)
+{
+	int ret;
+
+	iris_get_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+
+	ret = iris_release_input_internal_buffers(inst);
+	if (ret)
+		return ret;
+
+	ret = iris_create_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+	if (ret)
+		return ret;
+
+	return iris_queue_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+}
+
 int iris_queue_deferred_buffers(struct iris_inst *inst, enum iris_buffer_type buf_type)
 {
 	struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;