mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-04 06:16:46 +07:00
55eb94f9e9
The file nfc.h was moved from include/net to include/net/nfc, since new NFC header files will be added to include/net/nfc. Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
166 lines
4.1 KiB
C
166 lines
4.1 KiB
C
/*
|
|
* Copyright (C) 2011 Instituto Nokia de Tecnologia
|
|
*
|
|
* Authors:
|
|
* Lauro Ramos Venancio <lauro.venancio@openbossa.org>
|
|
* Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the
|
|
* Free Software Foundation, Inc.,
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __NET_NFC_H
|
|
#define __NET_NFC_H
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/skbuff.h>
|
|
|
|
#define nfc_dev_info(dev, fmt, arg...) dev_info((dev), "NFC: " fmt "\n", ## arg)
|
|
#define nfc_dev_err(dev, fmt, arg...) dev_err((dev), "NFC: " fmt "\n", ## arg)
|
|
#define nfc_dev_dbg(dev, fmt, arg...) dev_dbg((dev), fmt "\n", ## arg)
|
|
|
|
struct nfc_dev;
|
|
|
|
/**
|
|
* data_exchange_cb_t - Definition of nfc_data_exchange callback
|
|
*
|
|
* @context: nfc_data_exchange cb_context parameter
|
|
* @skb: response data
|
|
* @err: If an error has occurred during data exchange, it is the
|
|
* error number. Zero means no error.
|
|
*
|
|
* When a rx or tx package is lost or corrupted or the target gets out
|
|
* of the operating field, err is -EIO.
|
|
*/
|
|
typedef void (*data_exchange_cb_t)(void *context, struct sk_buff *skb,
|
|
int err);
|
|
|
|
struct nfc_ops {
|
|
int (*dev_up)(struct nfc_dev *dev);
|
|
int (*dev_down)(struct nfc_dev *dev);
|
|
int (*start_poll)(struct nfc_dev *dev, u32 protocols);
|
|
void (*stop_poll)(struct nfc_dev *dev);
|
|
int (*activate_target)(struct nfc_dev *dev, u32 target_idx,
|
|
u32 protocol);
|
|
void (*deactivate_target)(struct nfc_dev *dev, u32 target_idx);
|
|
int (*data_exchange)(struct nfc_dev *dev, u32 target_idx,
|
|
struct sk_buff *skb, data_exchange_cb_t cb,
|
|
void *cb_context);
|
|
};
|
|
|
|
struct nfc_target {
|
|
u32 idx;
|
|
u32 supported_protocols;
|
|
u16 sens_res;
|
|
u8 sel_res;
|
|
};
|
|
|
|
struct nfc_genl_data {
|
|
u32 poll_req_pid;
|
|
struct mutex genl_data_mutex;
|
|
};
|
|
|
|
struct nfc_dev {
|
|
unsigned idx;
|
|
unsigned target_idx;
|
|
struct nfc_target *targets;
|
|
int n_targets;
|
|
int targets_generation;
|
|
spinlock_t targets_lock;
|
|
struct device dev;
|
|
bool dev_up;
|
|
bool polling;
|
|
bool remote_activated;
|
|
struct nfc_genl_data genl_data;
|
|
u32 supported_protocols;
|
|
|
|
int tx_headroom;
|
|
int tx_tailroom;
|
|
|
|
struct nfc_ops *ops;
|
|
};
|
|
#define to_nfc_dev(_dev) container_of(_dev, struct nfc_dev, dev)
|
|
|
|
extern struct class nfc_class;
|
|
|
|
struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
|
|
u32 supported_protocols,
|
|
int tx_headroom,
|
|
int tx_tailroom);
|
|
|
|
/**
|
|
* nfc_free_device - free nfc device
|
|
*
|
|
* @dev: The nfc device to free
|
|
*/
|
|
static inline void nfc_free_device(struct nfc_dev *dev)
|
|
{
|
|
put_device(&dev->dev);
|
|
}
|
|
|
|
int nfc_register_device(struct nfc_dev *dev);
|
|
|
|
void nfc_unregister_device(struct nfc_dev *dev);
|
|
|
|
/**
|
|
* nfc_set_parent_dev - set the parent device
|
|
*
|
|
* @nfc_dev: The nfc device whose parent is being set
|
|
* @dev: The parent device
|
|
*/
|
|
static inline void nfc_set_parent_dev(struct nfc_dev *nfc_dev,
|
|
struct device *dev)
|
|
{
|
|
nfc_dev->dev.parent = dev;
|
|
}
|
|
|
|
/**
|
|
* nfc_set_drvdata - set driver specifc data
|
|
*
|
|
* @dev: The nfc device
|
|
* @data: Pointer to driver specifc data
|
|
*/
|
|
static inline void nfc_set_drvdata(struct nfc_dev *dev, void *data)
|
|
{
|
|
dev_set_drvdata(&dev->dev, data);
|
|
}
|
|
|
|
/**
|
|
* nfc_get_drvdata - get driver specifc data
|
|
*
|
|
* @dev: The nfc device
|
|
*/
|
|
static inline void *nfc_get_drvdata(struct nfc_dev *dev)
|
|
{
|
|
return dev_get_drvdata(&dev->dev);
|
|
}
|
|
|
|
/**
|
|
* nfc_device_name - get the nfc device name
|
|
*
|
|
* @dev: The nfc device whose name to return
|
|
*/
|
|
static inline const char *nfc_device_name(struct nfc_dev *dev)
|
|
{
|
|
return dev_name(&dev->dev);
|
|
}
|
|
|
|
struct sk_buff *nfc_alloc_skb(unsigned int size, gfp_t gfp);
|
|
|
|
int nfc_targets_found(struct nfc_dev *dev, struct nfc_target *targets,
|
|
int ntargets);
|
|
|
|
#endif /* __NET_NFC_H */
|