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ec4bec227b
Add debug fs for isp4 driver and add more detailed descriptive error info to some of the log message Co-developed-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Co-developed-by: Svetoslav Stoilov <Svetoslav.Stoilov@amd.com> Signed-off-by: Svetoslav Stoilov <Svetoslav.Stoilov@amd.com> Signed-off-by: Bin Du <Bin.Du@amd.com> Reviewed-by: Sultan Alsawaf <sultan@kerneltoast.com> Tested-by: Alexey Zagorodnikov <xglooom@gmail.com> Tested-by: Kate Hsuan <hpa@redhat.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
128 lines
3.1 KiB
C
128 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2025 Advanced Micro Devices, Inc.
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*/
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#ifndef _ISP4_SUBDEV_H_
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#define _ISP4_SUBDEV_H_
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#include <linux/debugfs.h>
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#include <linux/delay.h>
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#include <linux/firmware.h>
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#include <linux/pm_runtime.h>
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#include <linux/types.h>
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#include <linux/uaccess.h>
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#include <media/v4l2-device.h>
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#include "isp4_fw_cmd_resp.h"
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#include "isp4_hw_reg.h"
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#include "isp4_interface.h"
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#include "isp4_video.h"
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/*
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* One is for none sensor specific response which is not used now.
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* Another is for sensor specific response
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*/
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#define ISP4SD_MAX_FW_RESP_STREAM_NUM 2
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/* Indicates the ISP status */
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enum isp4sd_status {
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ISP4SD_STATUS_PWR_OFF,
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ISP4SD_STATUS_PWR_ON,
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ISP4SD_STATUS_FW_RUNNING,
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ISP4SD_STATUS_MAX
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};
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/* Indicates sensor and output stream status */
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enum isp4sd_start_status {
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ISP4SD_START_STATUS_OFF,
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ISP4SD_START_STATUS_STARTED,
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ISP4SD_START_STATUS_START_FAIL,
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};
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struct isp4sd_img_buf_node {
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struct list_head node;
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struct isp4if_img_buf_info buf_info;
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};
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/* This is ISP output after processing Bayer raw sensor input */
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struct isp4sd_output_info {
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enum isp4sd_start_status start_status;
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u32 image_size;
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};
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/*
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* Struct for sensor info used as ISP input or source.
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* status: sensor status.
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* output_info: ISP output after processing the sensor input.
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* start_stream_cmd_sent: indicates if ISP4FW_CMD_ID_START_STREAM was sent
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* to firmware.
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* buf_sent_cnt: number of buffers sent to receive images.
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*/
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struct isp4sd_sensor_info {
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struct isp4sd_output_info output_info;
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enum isp4sd_start_status status;
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bool start_stream_cmd_sent;
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u32 buf_sent_cnt;
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};
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/*
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* The thread is created by the driver to handle firmware responses which will
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* be waken up when a firmware-to-driver response interrupt occurs.
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*/
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struct isp4sd_thread_handler {
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struct task_struct *thread;
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wait_queue_head_t waitq;
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bool resp_ready;
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};
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struct isp4_subdev_thread_param {
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u32 idx;
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struct isp4_subdev *isp_subdev;
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};
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struct isp4_subdev {
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struct v4l2_subdev sdev;
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struct isp4_interface ispif;
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struct isp4vid_dev isp_vdev;
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struct media_pad sdev_pad;
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enum isp4sd_status isp_status;
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/* mutex used to synchronize the operation with firmware */
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struct mutex ops_mutex;
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struct isp4sd_thread_handler
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fw_resp_thread[ISP4SD_MAX_FW_RESP_STREAM_NUM];
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u32 host2fw_seq_num;
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struct isp4sd_sensor_info sensor_info;
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/* gpio descriptor */
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struct gpio_desc *enable_gpio;
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struct device *dev;
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void __iomem *mmio;
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struct isp4_subdev_thread_param
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isp_resp_para[ISP4SD_MAX_FW_RESP_STREAM_NUM];
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int irq[ISP4SD_MAX_FW_RESP_STREAM_NUM];
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bool irq_enabled;
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/* spin lock to access ISP_SYS_INT0_EN exclusively */
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spinlock_t irq_lock;
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#ifdef CONFIG_DEBUG_FS
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bool enable_fw_log;
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struct dentry *debugfs_dir;
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char *fw_log_output;
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#endif
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};
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int isp4sd_init(struct isp4_subdev *isp_subdev, struct v4l2_device *v4l2_dev,
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int irq[ISP4SD_MAX_FW_RESP_STREAM_NUM]);
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void isp4sd_deinit(struct isp4_subdev *isp_subdev);
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int isp4sd_ioc_send_img_buf(struct v4l2_subdev *sd,
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struct isp4if_img_buf_info *buf_info);
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int isp4sd_pwron_and_init(struct v4l2_subdev *sd);
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int isp4sd_pwroff_and_deinit(struct v4l2_subdev *sd);
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#endif /* _ISP4_SUBDEV_H_ */
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