root/arch/powerpc/include/uapi/asm/papr-indices.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_PAPR_INDICES_H_
#define _UAPI_PAPR_INDICES_H_

#include <linux/types.h>
#include <asm/ioctl.h>
#include <asm/papr-miscdev.h>

#define LOC_CODE_SIZE                   80
#define RTAS_GET_INDICES_BUF_SIZE       SZ_4K

struct papr_indices_io_block {
        union {
                struct {
                        __u8 is_sensor; /* 0 for indicator and 1 for sensor */
                        __u32 indice_type;
                } indices;
                struct {
                        __u32 token; /* Sensor or indicator token */
                        __u32 state; /* get / set state */
                        /*
                         * PAPR+ 12.3.2.4 Converged Location Code Rules - Length
                         * Restrictions. 79 characters plus null.
                         */
                        char location_code_str[LOC_CODE_SIZE]; /* location code */
                } dynamic_param;
        };
};

/*
 * ioctls for /dev/papr-indices.
 * PAPR_INDICES_IOC_GET: Returns a get-indices handle fd to read data
 * PAPR_DYNAMIC_SENSOR_IOC_GET: Gets the state of the input sensor
 * PAPR_DYNAMIC_INDICATOR_IOC_SET: Sets the new state for the input indicator
 */
#define PAPR_INDICES_IOC_GET            _IOW(PAPR_MISCDEV_IOC_ID, 3, struct papr_indices_io_block)
#define PAPR_DYNAMIC_SENSOR_IOC_GET     _IOWR(PAPR_MISCDEV_IOC_ID, 4, struct papr_indices_io_block)
#define PAPR_DYNAMIC_INDICATOR_IOC_SET  _IOW(PAPR_MISCDEV_IOC_ID, 5, struct papr_indices_io_block)


#endif /* _UAPI_PAPR_INDICES_H_ */