--- /dev/null
+/******************************************************************************
+
+ 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 <asm/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;
+}
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
+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));
+}
+
+const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee)
+{
+ return &ieee->geo;
+}
+
+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;
+}
+
+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];
+}
+
+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);
Code Review / kvmfornfv.git / blobdiff