1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/iris/iris_utils.c b/drivers/media/platform/qcom/iris/iris_utils.c
new file mode 100644
index 000000000000..83c70d6a2d90
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_utils.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/pm_runtime.h>
+#include <media/v4l2-mem2mem.h>
+
+#include "iris_instance.h"
+#include "iris_utils.h"
+
+bool iris_res_is_less_than(u32 width, u32 height,
+			   u32 ref_width, u32 ref_height)
+{
+	u32 num_mbs = NUM_MBS_PER_FRAME(height, width);
+	u32 max_side = max(ref_width, ref_height);
+
+	if (num_mbs < NUM_MBS_PER_FRAME(ref_height, ref_width) &&
+	    width < max_side &&
+	    height < max_side)
+		return true;
+
+	return false;
+}
+
+int iris_get_mbpf(struct iris_inst *inst)
+{
+	struct v4l2_format *inp_f = inst->fmt_src;
+	u32 height = max(inp_f->fmt.pix_mp.height, inst->crop.height);
+	u32 width = max(inp_f->fmt.pix_mp.width, inst->crop.width);
+
+	return NUM_MBS_PER_FRAME(height, width);
+}
+
+bool iris_split_mode_enabled(struct iris_inst *inst)
+{
+	return inst->fmt_dst->fmt.pix_mp.pixelformat == V4L2_PIX_FMT_NV12;
+}
+
+void iris_helper_buffers_done(struct iris_inst *inst, unsigned int type,
+			      enum vb2_buffer_state state)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
+	struct vb2_v4l2_buffer *buf;
+
+	if (V4L2_TYPE_IS_OUTPUT(type)) {
+		while ((buf = v4l2_m2m_src_buf_remove(m2m_ctx)))
+			v4l2_m2m_buf_done(buf, state);
+	} else if (V4L2_TYPE_IS_CAPTURE(type)) {
+		while ((buf = v4l2_m2m_dst_buf_remove(m2m_ctx)))
+			v4l2_m2m_buf_done(buf, state);
+	}
+}
+
+int iris_wait_for_session_response(struct iris_inst *inst, bool is_flush)
+{
+	struct iris_core *core = inst->core;
+	u32 hw_response_timeout_val;
+	struct completion *done;
+	int ret;
+
+	hw_response_timeout_val = core->iris_platform_data->hw_response_timeout;
+	done = is_flush ? &inst->flush_completion : &inst->completion;
+
+	mutex_unlock(&inst->lock);
+	ret = wait_for_completion_timeout(done, msecs_to_jiffies(hw_response_timeout_val));
+	mutex_lock(&inst->lock);
+	if (!ret) {
+		iris_inst_change_state(inst, IRIS_INST_ERROR);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+struct iris_inst *iris_get_instance(struct iris_core *core, u32 session_id)
+{
+	struct iris_inst *inst;
+
+	mutex_lock(&core->lock);
+	list_for_each_entry(inst, &core->instances, list) {
+		if (inst->session_id == session_id) {
+			mutex_unlock(&core->lock);
+			return inst;
+		}
+	}
+
+	mutex_unlock(&core->lock);
+	return NULL;
+}