include/net/caif/cfcnfg.h

   1 /*
   2  * Copyright (C) ST-Ericsson AB 2010
   3  * Author:      Sjur Brendeland/sjur.brandeland@stericsson.com
   4  * License terms: GNU General Public License (GPL) version 2
   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_type -  Types of physical layers defined in CAIF Stack
  18  *
  19  * @CFPHYTYPE_FRAG:     Fragmented frames physical interface.
  20  * @CFPHYTYPE_CAIF:     Generic CAIF physical interface
  21  */
  22 enum cfcnfg_phy_type {
  23         CFPHYTYPE_FRAG = 1,
  24         CFPHYTYPE_CAIF,
  25         CFPHYTYPE_MAX
  26 };
  27
  28 /**
  29  * enum cfcnfg_phy_preference - Physical preference HW Abstraction
  30  *
  31  * @CFPHYPREF_UNSPECIFIED:      Default physical interface
  32  *
  33  * @CFPHYPREF_LOW_LAT:          Default physical interface for low-latency
  34  *                              traffic
  35  * @CFPHYPREF_HIGH_BW:          Default physical interface for high-bandwidth
  36  *                              traffic
  37  * @CFPHYPREF_LOOP:             TEST only Loopback interface simulating modem
  38  *                              responses.
  39  *
  40  */
  41 enum cfcnfg_phy_preference {
  42         CFPHYPREF_UNSPECIFIED,
  43         CFPHYPREF_LOW_LAT,
  44         CFPHYPREF_HIGH_BW,
  45         CFPHYPREF_LOOP
  46 };
  47
  48 /**
  49  * cfcnfg_create() - Get the CAIF configuration object given network.
  50  * @net:        Network for the CAIF configuration object.
  51  */
  52 struct cfcnfg *get_cfcnfg(struct net *net);
  53
  54 /**
  55  * cfcnfg_create() - Create the CAIF configuration object.
  56  */
  57 struct cfcnfg *cfcnfg_create(void);
  58
  59 /**
  60  * cfcnfg_remove() -  Remove the CFCNFG object
  61  * @cfg: config object
  62  */
  63 void cfcnfg_remove(struct cfcnfg *cfg);
  64
  65 /**
  66  * cfcnfg_add_phy_layer() - Adds a physical layer to the CAIF stack.
  67  * @cnfg:       Pointer to a CAIF configuration object, created by
  68  *              cfcnfg_create().
  69  * @phy_type:   Specifies the type of physical interface, e.g.
  70  *                      CFPHYTYPE_FRAG.
  71  * @dev:        Pointer to link layer device
  72  * @phy_layer:  Specify the physical layer. The transmit function
  73  *              MUST be set in the structure.
  74  * @pref:       The phy (link layer) preference.
  75  * @fcs:        Specify if checksum is used in CAIF Framing Layer.
  76  * @stx:        Specify if Start Of Frame eXtention is used.
  77  */
  78
  79 void
  80 cfcnfg_add_phy_layer(struct cfcnfg *cnfg, enum cfcnfg_phy_type phy_type,
  81                      struct net_device *dev, struct cflayer *phy_layer,
  82                      enum cfcnfg_phy_preference pref,
  83                      bool fcs, bool stx);
  84
  85 /**
  86  * cfcnfg_del_phy_layer - Deletes an phy layer from the CAIF stack.
  87  *
  88  * @cnfg:       Pointer to a CAIF configuration object, created by
  89  *              cfcnfg_create().
  90  * @phy_layer:  Adaptation layer to be removed.
  91  */
  92 int cfcnfg_del_phy_layer(struct cfcnfg *cnfg, struct cflayer *phy_layer);
  93
  94 /**
  95  * cfcnfg_set_phy_state() - Set the state of the physical interface device.
  96  * @cnfg:       Configuration object
  97  * @phy_layer:  Physical Layer representation
  98  * @up: State of device
  99  */
 100 int cfcnfg_set_phy_state(struct cfcnfg *cnfg, struct cflayer *phy_layer,
 101                                 bool up);
 102
 103 #endif                          /* CFCNFG_H_ */