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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) ST-Ericsson AB 2010
* Author: Sjur Brendeland
*/
#ifndef CFCNFG_H_
#define CFCNFG_H_
#include <linux/spinlock.h>
#include <linux/netdevice.h>
#include <net/caif/caif_layer.h>
#include <net/caif/cfctrl.h>
struct cfcnfg;
/**
* enum cfcnfg_phy_preference - Physical preference HW Abstraction
*
* @CFPHYPREF_UNSPECIFIED: Default physical interface
*
* @CFPHYPREF_LOW_LAT: Default physical interface for low-latency
* traffic
* @CFPHYPREF_HIGH_BW: Default physical interface for high-bandwidth
* traffic
* @CFPHYPREF_LOOP: TEST only Loopback interface simulating modem
* responses.
*
*/
enum cfcnfg_phy_preference {
CFPHYPREF_UNSPECIFIED,
CFPHYPREF_LOW_LAT,
CFPHYPREF_HIGH_BW,
CFPHYPREF_LOOP
};
/**
* cfcnfg_create() - Get the CAIF configuration object given network.
* @net: Network for the CAIF configuration object.
*/
struct cfcnfg *get_cfcnfg(struct net *net);
/**
* cfcnfg_create() - Create the CAIF configuration object.
*/
struct cfcnfg *cfcnfg_create(void);
/**
* cfcnfg_remove() - Remove the CFCNFG object
* @cfg: config object
*/
void cfcnfg_remove(struct cfcnfg *cfg);
/**
* cfcnfg_add_phy_layer() - Adds a physical layer to the CAIF stack.
* @cnfg: Pointer to a CAIF configuration object, created by
* cfcnfg_create().
* @dev: Pointer to link layer device
* @phy_layer: Specify the physical layer. The transmit function
* MUST be set in the structure.
* @pref: The phy (link layer) preference.
* @link_support: Protocol implementation for link layer specific protocol.
* @fcs: Specify if checksum is used in CAIF Framing Layer.
* @head_room: Head space needed by link specific protocol.
*/
int
cfcnfg_add_phy_layer(struct cfcnfg *cnfg,
struct net_device *dev, struct cflayer *phy_layer,
enum cfcnfg_phy_preference pref,
struct cflayer *link_support,
bool fcs, int head_room);
/**
* cfcnfg_del_phy_layer - Deletes an phy layer from the CAIF stack.
*
* @cnfg: Pointer to a CAIF configuration object, created by
* cfcnfg_create().
* @phy_layer: Adaptation layer to be removed.
*/
int cfcnfg_del_phy_layer(struct cfcnfg *cnfg, struct cflayer *phy_layer);
/**
* cfcnfg_set_phy_state() - Set the state of the physical interface device.
* @cnfg: Configuration object
* @phy_layer: Physical Layer representation
* @up: State of device
*/
int cfcnfg_set_phy_state(struct cfcnfg *cnfg, struct cflayer *phy_layer,
bool up);
#endif /* CFCNFG_H_ */