#ifndef WLAN_DEV_H

#define WLAN_DEV_H

/**

 * Copyright (C) 2007,2008 Nokia Corporation. All rights reserved.

 *

 * @author jukka.rissanen@nokia.com

 *

 * @file libicd-network-wlan-dev.h

 */

#include <glib.h>

#include <dbus/dbus.h>

#include <wlancond.h>

#include <icd/network_api_defines.h>

/* Difference between network attributes value and wlan capabilities:

 *

 *                                    WLAN

 *             Network             capability             Combined

 *   LSB      attribute         (from wlancond.h)

 *  ----      ---------            ----------             --------

 *    0                               mode                  mode

 *    1                               mode                  mode

 *    2                               mode                  mode

 *    3                          autoconnect attempt       method

 *    4                             encrypt method         method

 *    5                             encrypt method         method

 *    6                             encrypt method         method

 *    7                             encrypt method          WPA2

 *    8                               WPA2                algorithm

 *    9                               WPS                 algorithm

 *   10                              WPS PIN              algorithm

 *   11                             WPS push button       algorithm

 *   12                             WPS configured          WPS

 *   13                                                    WPS PIN

 *   14                                                  WPS push button

 *   15                                                  WPS configured 

 *   16                               rate

 *   17                               rate

 *   18                               rate

 *   19                               rate

 *   20                               rate

 *   21                               rate

 *   22                               rate

 *   23        iap name               rate                 iap name

 *   24         silent                rate                  silent

 *   25                               rate

 *   26      

 *   27

 *   28                           security algorithm

 *   29      always online        security algorithm      always online

 *   30                           security algorithm

 *   31                           security algorithm

 *   MSB

 *

 *

 * Same view from different angle.

 *

 *   MSB                            LSB   (of 32 bits)

 *    10987654321098765432109876543210

 *

 *                    WWWWaaaaWmmmmmmm    Combined format

 *                    PPPPllllPeeeeooo 

 *                    SSSSggggAttttddd 

 *                    cbp oooo2hhhheee

 *                    fti      oooo 

 *                    gnn      dddd

 *

 *    aaaa                   Wmmmm mmm    Capability format

 *    llll                   Peeee ooo 

 *    gggg                   Atttt ddd 

 *    oooo                   2hhhh eee

 *                            oooo 

 *                            dddd

 *

 *

 * Note that WPS bits in nwattrs are moved towards MSB because algorithm

 * was there first and we do not want to break binary compatibility.

 */

/* capability bits inside network attributes var */

#define NWATTR_WPS_MASK       0x0000F000

#define NWATTR_ALGORITHM_MASK 0x00000F00

#define NWATTR_WPA2_MASK      0x00000080

#define NWATTR_METHOD_MASK    0x00000078

#define NWATTR_MODE_MASK      0x00000007

#define CAP_LOCALMASK         0x0FFFE008

/* how much to shift between capability and network attributes var */

#define CAP_SHIFT_WPS        3

#define CAP_SHIFT_ALGORITHM 20

#define CAP_SHIFT_WPA2       1

#define CAP_SHIFT_METHOD     1

#define CAP_SHIFT_MODE       0

#define CAP_SHIFT_ALWAYS_ONLINE 26

/* ------------------------------------------------------------------------- */

/* From combined to capability */

static inline dbus_uint32_t nwattr2cap(guint nwattrs, dbus_uint32_t *cap)

{

	guint oldval = *cap;

	*cap &= CAP_LOCALMASK; /* clear old capabilities */

	*cap |=

		((nwattrs & ICD_NW_ATTR_ALWAYS_ONLINE) >> CAP_SHIFT_ALWAYS_ONLINE) |

		((nwattrs & NWATTR_WPS_MASK) >> CAP_SHIFT_WPS) |

		((nwattrs & NWATTR_ALGORITHM_MASK) << CAP_SHIFT_ALGORITHM) |

		((nwattrs & NWATTR_WPA2_MASK) << CAP_SHIFT_WPA2) |

		((nwattrs & NWATTR_METHOD_MASK) << CAP_SHIFT_METHOD) |

		(nwattrs & NWATTR_MODE_MASK);

	return oldval;

}

/* ------------------------------------------------------------------------- */

/* From capability to combined */

static inline guint cap2nwattr(dbus_uint32_t cap, guint *nwattrs)

{

	guint oldval = *nwattrs;

	*nwattrs &= ~ICD_NW_ATTR_LOCALMASK; /* clear old capabilities */

        *nwattrs |=

#ifdef WLANCOND_WPS_MASK

		((cap & WLANCOND_WPS_MASK) << CAP_SHIFT_WPS) |

#endif

		((cap & (WLANCOND_ENCRYPT_ALG_MASK |

			 WLANCOND_ENCRYPT_GROUP_ALG_MASK)) >> CAP_SHIFT_ALGORITHM)|

		((cap & WLANCOND_ENCRYPT_WPA2_MASK) >> CAP_SHIFT_WPA2) |

		((cap & WLANCOND_ENCRYPT_METHOD_MASK) >> CAP_SHIFT_METHOD) |

		(cap & WLANCOND_MODE_MASK);

	return oldval;

}

#endif