/* SPDX-License-Identifier: GPL-2.0+ *//* * Copyright (C) 2025 Advanced Micro Devices, Inc. */ #ifndef _ISP4_SUBDEV_H_#define _ISP4_SUBDEV_H_ #include <linux/debugfs.h>#include <linux/delay.h>#include <linux/firmware.h>#include <linux/pm_runtime.h>#include <linux/types.h>#include <linux/uaccess.h>#include <media/v4l2-device.h> #include "isp4_fw_cmd_resp.h"#include "isp4_hw_reg.h"#include "isp4_interface.h"#include "isp4_video.h" /* * One is for none sensor specific response which is not used now. * Another is for sensor specific response */#define ISP4SD_MAX_FW_RESP_STREAM_NUM 2 /* Indicates the ISP status */enum isp4sd_status {	ISP4SD_STATUS_PWR_OFF,	ISP4SD_STATUS_PWR_ON,	ISP4SD_STATUS_FW_RUNNING,	ISP4SD_STATUS_MAX}; /* Indicates sensor and output stream status */enum isp4sd_start_status {	ISP4SD_START_STATUS_OFF,	ISP4SD_START_STATUS_STARTED,	ISP4SD_START_STATUS_START_FAIL,}; struct isp4sd_img_buf_node {	struct list_head node;	struct isp4if_img_buf_info buf_info;}; /* This is ISP output after processing Bayer raw sensor input */struct isp4sd_output_info {	enum isp4sd_start_status start_status;	u32 image_size;}; /* * Struct for sensor info used as ISP input or source. * status: sensor status. * output_info: ISP output after processing the sensor input. * start_stream_cmd_sent: indicates if ISP4FW_CMD_ID_START_STREAM was sent * to firmware. * buf_sent_cnt: number of buffers sent to receive images. */struct isp4sd_sensor_info {	struct isp4sd_output_info output_info;	enum isp4sd_start_status status;	bool start_stream_cmd_sent;	u32 buf_sent_cnt;}; /* * The thread is created by the driver to handle firmware responses which will * be waken up when a firmware-to-driver response interrupt occurs. */struct isp4sd_thread_handler {	struct task_struct *thread;	wait_queue_head_t waitq;	bool resp_ready;}; struct isp4_subdev_thread_param {	u32 idx;	struct isp4_subdev *isp_subdev;}; struct isp4_subdev {	struct v4l2_subdev sdev;	struct isp4_interface ispif;	struct isp4vid_dev isp_vdev; 	struct media_pad sdev_pad; 	enum isp4sd_status isp_status;	/* mutex used to synchronize the operation with firmware */	struct mutex ops_mutex; 	struct isp4sd_thread_handler		fw_resp_thread[ISP4SD_MAX_FW_RESP_STREAM_NUM]; 	u32 host2fw_seq_num; 	struct isp4sd_sensor_info sensor_info; 	/* gpio descriptor */	struct gpio_desc *enable_gpio;	struct device *dev;	void __iomem *mmio;	struct isp4_subdev_thread_param		isp_resp_para[ISP4SD_MAX_FW_RESP_STREAM_NUM];	int irq[ISP4SD_MAX_FW_RESP_STREAM_NUM];	bool irq_enabled;	/* spin lock to access ISP_SYS_INT0_EN exclusively */	spinlock_t irq_lock;#ifdef CONFIG_DEBUG_FS	bool enable_fw_log;	struct dentry *debugfs_dir;	char *fw_log_output;#endif}; int isp4sd_init(struct isp4_subdev *isp_subdev, struct v4l2_device *v4l2_dev,		int irq[ISP4SD_MAX_FW_RESP_STREAM_NUM]);void isp4sd_deinit(struct isp4_subdev *isp_subdev);int isp4sd_ioc_send_img_buf(struct v4l2_subdev *sd,			    struct isp4if_img_buf_info *buf_info);int isp4sd_pwron_and_init(struct v4l2_subdev *sd);int isp4sd_pwroff_and_deinit(struct v4l2_subdev *sd); #endif /* _ISP4_SUBDEV_H_ */