1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) ST-Ericsson AB 2010
4 * Author:	Sjur Brendeland
5 */
6
7#ifndef CFCNFG_H_
8#define CFCNFG_H_
9#include <linux/spinlock.h>
10#include <linux/netdevice.h>
11#include <net/caif/caif_layer.h>
12#include <net/caif/cfctrl.h>
13
14struct cfcnfg;
15
16/**
17 * enum cfcnfg_phy_preference - Physical preference HW Abstraction
18 *
19 * @CFPHYPREF_UNSPECIFIED:	Default physical interface
20 *
21 * @CFPHYPREF_LOW_LAT:		Default physical interface for low-latency
22 *				traffic
23 * @CFPHYPREF_HIGH_BW:		Default physical interface for high-bandwidth
24 *				traffic
25 * @CFPHYPREF_LOOP:		TEST only Loopback interface simulating modem
26 *				responses.
27 *
28 */
29enum cfcnfg_phy_preference {
30	CFPHYPREF_UNSPECIFIED,
31	CFPHYPREF_LOW_LAT,
32	CFPHYPREF_HIGH_BW,
33	CFPHYPREF_LOOP
34};
35
36/**
37 * cfcnfg_create() - Get the CAIF configuration object given network.
38 * @net:	Network for the CAIF configuration object.
39 */
40struct cfcnfg *get_cfcnfg(struct net *net);
41
42/**
43 * cfcnfg_create() - Create the CAIF configuration object.
44 */
45struct cfcnfg *cfcnfg_create(void);
46
47/**
48 * cfcnfg_remove() -  Remove the CFCNFG object
49 * @cfg: config object
50 */
51void cfcnfg_remove(struct cfcnfg *cfg);
52
53/**
54 * cfcnfg_add_phy_layer() - Adds a physical layer to the CAIF stack.
55 * @cnfg:	Pointer to a CAIF configuration object, created by
56 *		cfcnfg_create().
57 * @dev:	Pointer to link layer device
58 * @phy_layer:	Specify the physical layer. The transmit function
59 *		MUST be set in the structure.
60 * @pref:	The phy (link layer) preference.
61 * @link_support: Protocol implementation for link layer specific protocol.
62 * @fcs:	Specify if checksum is used in CAIF Framing Layer.
63 * @head_room:	Head space needed by link specific protocol.
64 */
65int
66cfcnfg_add_phy_layer(struct cfcnfg *cnfg,
67		     struct net_device *dev, struct cflayer *phy_layer,
68		     enum cfcnfg_phy_preference pref,
69		     struct cflayer *link_support,
70		     bool fcs, int head_room);
71
72/**
73 * cfcnfg_del_phy_layer - Deletes an phy layer from the CAIF stack.
74 *
75 * @cnfg:	Pointer to a CAIF configuration object, created by
76 *		cfcnfg_create().
77 * @phy_layer:	Adaptation layer to be removed.
78 */
79int cfcnfg_del_phy_layer(struct cfcnfg *cnfg, struct cflayer *phy_layer);
80
81/**
82 * cfcnfg_set_phy_state() - Set the state of the physical interface device.
83 * @cnfg:	Configuration object
84 * @phy_layer:	Physical Layer representation
85 * @up:	State of device
86 */
87int cfcnfg_set_phy_state(struct cfcnfg *cnfg, struct cflayer *phy_layer,
88				bool up);
89
90#endif				/* CFCNFG_H_ */
91