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  *   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÁ968_†I|¥�+ÁÀ È    /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_SHM_H_
#define _LINUX_SHM_H_

#include <linux/list.h>
#include <asm/page.h>
#include <uapi/linux/shm.h>
#include <asm/shmparam.h>

struct file;

#ifdef CONFIG_SYSVIPC
struct sysv_shm {
	struct list_head shm_clist;
};

long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr,
	      unsigned long shmlba);
bool is_file_shm_hugepages(struct file *file);
void exit_shm(struct task_struct *task);
#define shm_init_task(task) INIT_LIST_HEAD(&(task)->sysvshm.shm_clist)
#else
struct sysv_shm {
	/* empty */
};

static inline long do_shmat(int shmid, char __user *shmaddr,
			    int shmflg, unsigned long *addr,
			    unsigned long shmlba)
{
	return -ENOSYS;
}
static inline bool is_file_shm_hugepages(struct file *file)
{
	return false;
}
static inline void exit_shm(struct task_struct *task)
{
}
static inline void shm_init_task(struct task_struct *task)
{
}
#endif

#endif /* _LINUX_SHM_H_ */
     ˆ¿Âƒ|-¾ÁÀ #´    /* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net>
 */

#ifndef __LINUX_W1_H
#define __LINUX_W1_H

#include <linux/device.h>

/**
 * struct w1_reg_num - broken out slave device id
 *
 * @family: identifies the type of device
 * @id: along with family is the unique device id
 * @crc: checksum of the other bytes
 */
struct w1_reg_num {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	__u64	family:8,
		id:48,
		crc:8;
#elif defined(__BIG_ENDIAN_BITFIELD)
	__u64	crc:8,
		id:48,
		family:8;
#else
#error "Please fix <asm/byteorder.h>"
#endif
};

#ifdef __KERNEL__

#define W1_MAXNAMELEN		32

#define W1_SEARCH		0xF0
#define W1_ALARM_SEARCH		0xEC
#define W1_CONVERT_TEMP		0x44
#define W1_SKIP_ROM		0xCC
#define W1_COPY_SCRATCHPAD	0x48
#define W1_WRITE_SCRATCHPAD	0x4E
#define W1_READ_SCRATCHPAD	0xBE
#define W1_READ_ROM		0x33
#define W1_READ_PSUPPLY		0xB4
#define W1_MATCH_ROM		0x55
#define W1_RESUME_CMD		0xA5

/**
 * struct w1_slave - holds a single slave device on the bus
 *
 * @owner: Points to the one wire "wire" kernel module.
 * @name: Device id is ascii.
 * @w1_slave_entry: data for the linked list
 * @reg_num: the slave id in binary
 * @refcnt: reference count, delete when 0
 * @flags: bit flags for W1_SLAVE_ACTIVE W1_SLAVE_DETACH
 * @ttl: decrement per search this slave isn't found, deatch at 0
 * @master: bus which this slave is on
 * @family: module for device family type
 * @family_data: pointer for use by the family module
 * @dev: kernel device identifier
 * @hwmon: pointer to hwmon device
 *
 */
struct w1_slave {
	struct module		*owner;
	unsigned char		name[W1_MAXNAMELEN];
	struct list_head	w1_slave_entry;
	struct w1_reg_num	reg_num;
	atomic_t		refcnt;
	int			ttl;
	unsigned long		flags;

	struct w1_master	*master;
	struct w1_family	*family;
	void			*family_data;
	struct device		dev;
	struct device		*hwmon;
};

typedef void (*w1_slave_found_callback)(struct w1_master *, u64);

/**
 * struct w1_bus_master - operations available on a bus master
 *
 * @data: the first parameter in all the functions below
 *
 * @read_bit: Sample the line level @return the level read (0 or 1)
 *
 * @write_bit: Sets the line level
 *
 * @touch_bit: the lowest-level function for devices that really support the
 * 1-wire protocol.
 * touch_bit(0) = write-0 cycle
 * touch_bit(1) = write-1 / read cycle
 * @return the bit read (0 or 1)
 *
 * @read_byte: Reads a bytes. Same as 8 touch_bit(1) calls.
 * @return the byte read
 *
 * @write_byte: Writes a byte. Same as 8 touch_bit(x) calls.
 *
 * @read_block: Same as a series of read_byte() calls
 * @return the number of bytes read
 *
 * @write_block: Same as a series of write_byte() calls
 *
 * @triplet: Combines two reads and a smart write for ROM searches
 * @return bit0=Id bit1=comp_id bit2=dir_taken
 *
 * @reset_bus: long write-0 with a read for the presence pulse detection
 * @return -1=Error, 0=Device present, 1=No device present
 *
 * @set_pullup: Put out a strong pull-up pulse of the specified duration.
 * @re