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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_VSC_H_
#define _LINUX_VSC_H_
#include <linux/types.h>
/**
* @brief VSC camera ownership definition
*/
enum vsc_camera_owner {
VSC_CAMERA_NONE = 0,
VSC_CAMERA_CVF,
VSC_CAMERA_IPU,
};
/**
* @brief VSC privacy status definition
*/
enum vsc_privacy_status {
VSC_PRIVACY_ON = 0,
VSC_PRIVACY_OFF,
};
/**
* @brief VSC MIPI configuration definition
*/
struct vsc_mipi_config {
uint32_t freq;
uint32_t lane_num;
};
/**
* @brief VSC camera status definition
*/
struct vsc_camera_status {
enum vsc_camera_owner owner;
enum vsc_privacy_status status;
uint32_t exposure_level;
};
/**
* @brief VSC privacy callback type definition
*
* @param context Privacy callback handle
* @param status Current privacy status
*/
typedef void (*vsc_privacy_callback_t)(void *handle,
enum vsc_privacy_status status);
/**
* @brief Acquire camera sensor ownership to IPU
*
* @param config[IN] The pointer of MIPI configuration going to set
* @param callback[IN] The pointer of privacy callback function
* @param handle[IN] Privacy callback function runtime handle from IPU driver
* @param status[OUT] The pointer of camera status after the acquire
*
* @retval 0 If success
* @retval -EIO IO error
* @retval -EINVAL Invalid argument
* @retval -EAGAIN VSC device not ready
* @retval negative values for other errors
*/
int vsc_acquire_camera_sensor(struct vsc_mipi_config *config,
vsc_privacy_callback_t callback,
void *handle,
struct vsc_camera_status *status);
/**
* @brief Release camera sensor ownership
*
* @param status[OUT] Camera status after the release
*
* @retval 0 If success
* @retval -EIO IO error
* @retval -EINVAL Invalid argument
* @retval -EAGAIN VSC device not ready
* @retval negative values for other errors
*/
int vsc_release_camera_sensor(struct vsc_camera_status *status);
#endif