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iccom_core.h
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iccom_core.h
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/*
* Copyright (c) 2016, Renesas Electronics Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License Version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef ICCOM_CORE_H
#define ICCOM_CORE_H
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/miscdevice.h>
#include <linux/list.h>
#define VERSION_OF_RENESAS "1.0.0"
#define ICCOM_ON (1U) /* FLAG ON */
#define ICCOM_OFF (0U) /* FLAG OFF */
#define ICCOM_MAX_ICCOM_DEV_NAME (128)
/* ioctl request command */
#define ICCOM_IOC_CANCEL_RECEIVE (1)
struct iccom {
struct list_head list;
int8_t name[ICCOM_MAX_ICCOM_DEV_NAME];
void *priv; /* set iccom_hardware_info. */
const struct iccom_ops *ops;
struct device *dev;
struct miscdevice miscdev;
uint32_t flg;
struct iccom_channel *channel;
struct mutex mutex_channel_open;
};
struct iccom_channel {
struct iccom *iccom;
void *priv; /* set iccom_communication_info. */
};
struct iccom_cmd {
uint8_t *buf;
size_t count;
};
struct iccom_ops {
struct module *owner;
const char *type;
int32_t (*open)(struct iccom *iccom,
struct iccom_channel **channel_out);
int32_t (*close)(struct iccom_channel *channel);
ssize_t (*read)(struct iccom_channel *channel, struct iccom_cmd *cmd);
ssize_t (*write)(struct iccom_channel *channel, struct iccom_cmd *cmd);
int32_t (*ioctl)(struct iccom_channel *channel, int32_t req, void *arg);
};
struct iccom *iccom_core_alloc(struct device *dev, int32_t channel_no,
const struct iccom_ops *ops, size_t len);
int32_t iccom_core_free(struct iccom *iccom);
int32_t iccom_core_add(struct iccom *iccom);
int32_t iccom_core_del(struct iccom *iccom);
struct iccom *iccom_core_get_iccom(const int8_t *devname);
#endif /* ICCOM_CORE_H */