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 
14 struct 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  */
29 enum 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  */
40 struct cfcnfg *get_cfcnfg(struct net *net);
41 
42 /**
43  * cfcnfg_create() - Create the CAIF configuration object.
44  */
45 struct cfcnfg *cfcnfg_create(void);
46 
47 /**
48  * cfcnfg_remove() -  Remove the CFCNFG object
49  * @cfg: config object
50  */
51 void 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  */
65 int
66 cfcnfg_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  */
79 int 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  */
87 int cfcnfg_set_phy_state(struct cfcnfg *cnfg, struct cflayer *phy_layer,
88 				bool up);
89 
90 #endif				/* CFCNFG_H_ */
91