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Release 4.11 drivers/net/wireless/intel/ipw2x00/libipw_geo.c

/******************************************************************************

  Copyright(c) 2005 Intel Corporation. All rights reserved.

  This program is free software; you can redistribute it and/or modify it
  under the terms of version 2 of the GNU General Public License as
  published by the Free Software Foundation.

  This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc., 59
  Temple Place - Suite 330, Boston, MA  02111-1307, USA.

  The full GNU General Public License is included in this distribution in the
  file called LICENSE.

  Contact Information:
  Intel Linux Wireless <ilw@linux.intel.com>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

******************************************************************************/
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/if_arp.h>
#include <linux/in6.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/proc_fs.h>
#include <linux/skbuff.h>
#include <linux/tcp.h>
#include <linux/types.h>
#include <linux/wireless.h>
#include <linux/etherdevice.h>
#include <linux/uaccess.h>

#include "libipw.h"


int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel) { int i; /* Driver needs to initialize the geography map before using * these helper functions */ if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) return 0; if (ieee->freq_band & LIBIPW_24GHZ_BAND) for (i = 0; i < ieee->geo.bg_channels; i++) /* NOTE: If G mode is currently supported but * this is a B only channel, we don't see it * as valid. */ if ((ieee->geo.bg[i].channel == channel) && !(ieee->geo.bg[i].flags & LIBIPW_CH_INVALID) && (!(ieee->mode & IEEE_G) || !(ieee->geo.bg[i].flags & LIBIPW_CH_B_ONLY))) return LIBIPW_24GHZ_BAND; if (ieee->freq_band & LIBIPW_52GHZ_BAND) for (i = 0; i < ieee->geo.a_channels; i++) if ((ieee->geo.a[i].channel == channel) && !(ieee->geo.a[i].flags & LIBIPW_CH_INVALID)) return LIBIPW_52GHZ_BAND; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
James Ketrenos14475.39%125.00%
Yi Zhu3216.75%125.00%
John W. Linville94.71%125.00%
Pete Zaitcev63.14%125.00%
Total191100.00%4100.00%


int libipw_channel_to_index(struct libipw_device *ieee, u8 channel) { int i; /* Driver needs to initialize the geography map before using * these helper functions */ if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) return -1; if (ieee->freq_band & LIBIPW_24GHZ_BAND) for (i = 0; i < ieee->geo.bg_channels; i++) if (ieee->geo.bg[i].channel == channel) return i; if (ieee->freq_band & LIBIPW_52GHZ_BAND) for (i = 0; i < ieee->geo.a_channels; i++) if (ieee->geo.a[i].channel == channel) return i; return -1; }

Contributors

PersonTokensPropCommitsCommitProp
James Ketrenos11891.47%133.33%
Pete Zaitcev75.43%133.33%
John W. Linville43.10%133.33%
Total129100.00%3100.00%


u32 libipw_channel_to_freq(struct libipw_device * ieee, u8 channel) { const struct libipw_channel * ch; /* Driver needs to initialize the geography map before using * these helper functions */ if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) return 0; ch = libipw_get_channel(ieee, channel); if (!ch->channel) return 0; return ch->freq; }

Contributors

PersonTokensPropCommitsCommitProp
Larry Finger6193.85%150.00%
John W. Linville46.15%150.00%
Total65100.00%2100.00%


u8 libipw_freq_to_channel(struct libipw_device * ieee, u32 freq) { int i; /* Driver needs to initialize the geography map before using * these helper functions */ if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) return 0; freq /= 100000; if (ieee->freq_band & LIBIPW_24GHZ_BAND) for (i = 0; i < ieee->geo.bg_channels; i++) if (ieee->geo.bg[i].freq == freq) return ieee->geo.bg[i].channel; if (ieee->freq_band & LIBIPW_52GHZ_BAND) for (i = 0; i < ieee->geo.a_channels; i++) if (ieee->geo.a[i].freq == freq) return ieee->geo.a[i].channel; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
James Ketrenos13993.29%133.33%
Pete Zaitcev64.03%133.33%
John W. Linville42.68%133.33%
Total149100.00%3100.00%


void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo) { memcpy(ieee->geo.name, geo->name, 3); ieee->geo.name[3] = '\0'; ieee->geo.bg_channels = geo->bg_channels; ieee->geo.a_channels = geo->a_channels; memcpy(ieee->geo.bg, geo->bg, geo->bg_channels * sizeof(struct libipw_channel)); memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels * sizeof(struct libipw_channel)); }

Contributors

PersonTokensPropCommitsCommitProp
James Ketrenos10494.55%133.33%
John W. Linville54.55%133.33%
Stanislav Yakovlev10.91%133.33%
Total110100.00%3100.00%


const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee) { return &ieee->geo; }

Contributors

PersonTokensPropCommitsCommitProp
James Ketrenos1684.21%150.00%
John W. Linville315.79%150.00%
Total19100.00%2100.00%


u8 libipw_get_channel_flags(struct libipw_device * ieee, u8 channel) { int index = libipw_channel_to_index(ieee, channel); if (index == -1) return LIBIPW_CH_INVALID; if (channel <= LIBIPW_24GHZ_CHANNELS) return ieee->geo.bg[index].flags; return ieee->geo.a[index].flags; }

Contributors

PersonTokensPropCommitsCommitProp
Yi Zhu5892.06%150.00%
John W. Linville57.94%150.00%
Total63100.00%2100.00%

static const struct libipw_channel bad_channel = { .channel = 0, .flags = LIBIPW_CH_INVALID, .max_power = 0, };
const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee, u8 channel) { int index = libipw_channel_to_index(ieee, channel); if (index == -1) return &bad_channel; if (channel <= LIBIPW_24GHZ_CHANNELS) return &ieee->geo.bg[index]; return &ieee->geo.a[index]; }

Contributors

PersonTokensPropCommitsCommitProp
Yi Zhu6092.31%150.00%
John W. Linville57.69%150.00%
Total65100.00%2100.00%

EXPORT_SYMBOL(libipw_get_channel); EXPORT_SYMBOL(libipw_get_channel_flags); EXPORT_SYMBOL(libipw_is_valid_channel); EXPORT_SYMBOL(libipw_freq_to_channel); EXPORT_SYMBOL(libipw_channel_to_freq); EXPORT_SYMBOL(libipw_channel_to_index); EXPORT_SYMBOL(libipw_set_geo); EXPORT_SYMBOL(libipw_get_geo);

Overall Contributors

PersonTokensPropCommitsCommitProp
James Ketrenos59065.12%112.50%
Yi Zhu17919.76%112.50%
Larry Finger657.17%112.50%
John W. Linville505.52%112.50%
Pete Zaitcev192.10%112.50%
Reinette Chatre10.11%112.50%
Linus Torvalds10.11%112.50%
Stanislav Yakovlev10.11%112.50%
Total906100.00%8100.00%
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