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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/powerpc/include/uapi/asm/papr-indices.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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#ifndef _UAPI_PAPR_INDICES_H_

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#define _UAPI_PAPR_INDICES_H_

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#include <linux/types.h>

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#include <asm/ioctl.h>

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#include <asm/papr-miscdev.h>

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#define LOC_CODE_SIZE			80

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#define RTAS_GET_INDICES_BUF_SIZE	SZ_4K

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struct papr_indices_io_block {

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	union {

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		struct {

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			__u8 is_sensor; /* 0 for indicator and 1 for sensor */

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			__u32 indice_type;

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		} indices;

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		struct {

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			__u32 token; /* Sensor or indicator token */

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			__u32 state; /* get / set state */

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			/*

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			 * PAPR+ 12.3.2.4 Converged Location Code Rules - Length

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			 * Restrictions. 79 characters plus null.

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			 */

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			char location_code_str[LOC_CODE_SIZE]; /* location code */

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		} dynamic_param;

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	};

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};

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/*

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 * ioctls for /dev/papr-indices.

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 * PAPR_INDICES_IOC_GET: Returns a get-indices handle fd to read data

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 * PAPR_DYNAMIC_SENSOR_IOC_GET: Gets the state of the input sensor

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 * PAPR_DYNAMIC_INDICATOR_IOC_SET: Sets the new state for the input indicator

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 */

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#define PAPR_INDICES_IOC_GET		_IOW(PAPR_MISCDEV_IOC_ID, 3, struct papr_indices_io_block)

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#define PAPR_DYNAMIC_SENSOR_IOC_GET	_IOWR(PAPR_MISCDEV_IOC_ID, 4, struct papr_indices_io_block)

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#define PAPR_DYNAMIC_INDICATOR_IOC_SET	_IOW(PAPR_MISCDEV_IOC_ID, 5, struct papr_indices_io_block)

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#endif /* _UAPI_PAPR_INDICES_H_ */

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