media: iris: implement reqbuf ioctl with vb2_queue_setup

Implement the reqbuf IOCTL op and the vb2_queue_setup vb2 op in the
driver with necessary hooks.

Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
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, 52 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..d5c8e052922c
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_utils.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/pm_runtime.h>
+
+#include "iris_instance.h"
+#include "iris_utils.h"
+
+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);
+}
+
+int iris_wait_for_session_response(struct iris_inst *inst)
+{
+	struct iris_core *core = inst->core;
+	u32 hw_response_timeout_val;
+	int ret;
+
+	hw_response_timeout_val = core->iris_platform_data->hw_response_timeout;
+
+	mutex_unlock(&inst->lock);
+	ret = wait_for_completion_timeout(&inst->completion,
+					  msecs_to_jiffies(hw_response_timeout_val));
+	mutex_lock(&inst->lock);
+	if (!ret)
+		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;
+}