1 files changed, 161 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-channel.h b/drivers/net/wireless/iwlwifi/iwl-channel.h
new file mode 100644
index 000000000000..023c3f240cea
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-channel.h
@@ -0,0 +1,161 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2005 - 2007 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+#ifndef __iwl_channel_h__
+#define __iwl_channel_h__
+
+#define IWL_NUM_SCAN_RATES         (2)
+
+struct iwl_channel_tgd_info {
+        u8 type;
+        s8 max_power;
+};
+
+struct iwl_channel_tgh_info {
+        s64 last_radar_time;
+};
+
+/* current Tx power values to use, one for each rate for each channel.
+ * requested power is limited by:
+ * -- regulatory EEPROM limits for this channel
+ * -- hardware capabilities (clip-powers)
+ * -- spectrum management
+ * -- user preference (e.g. iwconfig)
+ * when requested power is set, base power index must also be set. */
+struct iwl_channel_power_info {
+        struct iwl_tx_power tpc;        /* actual radio and DSP gain settings */
+        s8 power_table_index;   /* actual (compenst'd) index into gain table */
+        s8 base_power_index;    /* gain index for power at factory temp. */
+        s8 requested_power;     /* power (dBm) requested for this chnl/rate */
+};
+
+/* current scan Tx power values to use, one for each scan rate for each
+ * channel. */
+struct iwl_scan_power_info {
+        struct iwl_tx_power tpc;        /* actual radio and DSP gain settings */
+        s8 power_table_index;   /* actual (compenst'd) index into gain table */
+        s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
+};
+
+/* Channel unlock period is 15 seconds. If no beacon or probe response
+ * has been received within 15 seconds on a locked channel then the channel
+ * remains locked. */
+#define TX_UNLOCK_PERIOD 15
+
+/* CSA lock period is 15 seconds.  If a CSA has been received on a channel in
+ * the last 15 seconds, the channel is locked */
+#define CSA_LOCK_PERIOD 15
+/*
+ * One for each channel, holds all channel setup data
+ * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
+ *     with one another!
+ */
+#define IWL4965_MAX_RATE (33)
+
+struct iwl_channel_info {
+        struct iwl_channel_tgd_info tgd;
+        struct iwl_channel_tgh_info tgh;
+        struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
+        struct iwl_eeprom_channel fat_eeprom;   /* EEPROM regulatory limit for
+                                                 * FAT channel */
+
+        u8 channel;       /* channel number */
+        u8 flags;         /* flags copied from EEPROM */
+        s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
+        s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
+        s8 min_power;     /* always 0 */
+        s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
+
+        u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
+        u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
+        u8 phymode;       /* MODE_IEEE80211{A,B,G} */
+
+        /* Radio/DSP gain settings for each "normal" data Tx rate.
+         * These include, in addition to RF and DSP gain, a few fields for
+         *   remembering/modifying gain settings (indexes). */
+        struct iwl_channel_power_info power_info[IWL4965_MAX_RATE];
+
+#if IWL == 4965
+        /* FAT channel info */
+        s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
+        s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
+        s8 fat_min_power;       /* always 0 */
+        s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
+        u8 fat_flags;           /* flags copied from EEPROM */
+        u8 fat_extension_channel;
+#endif
+
+        /* Radio/DSP gain settings for each scan rate, for directed scans. */
+        struct iwl_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
+};
+
+struct iwl_clip_group {
+        /* maximum power level to prevent clipping for each rate, derived by
+         *   us from this band's saturation power in EEPROM */
+        const s8 clip_powers[IWL_MAX_RATES];
+};
+
+static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
+{
+        if (ch_info == NULL)
+                return 0;
+        return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
+}
+
+static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
+{
+        return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
+}
+
+static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
+{
+        return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
+}
+
+static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
+{
+        return ch_info->phymode == MODE_IEEE80211A;
+}
+
+static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
+{
+        return ((ch_info->phymode == MODE_IEEE80211B) ||
+                (ch_info->phymode == MODE_IEEE80211G));
+}
+
+static inline int is_channel_passive(const struct iwl_channel_info *ch)
+{
+        return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
+}
+
+static inline int is_channel_ibss(const struct iwl_channel_info *ch)
+{
+        return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
+}
+
+extern const struct iwl_channel_info *iwl_get_channel_info(
+        const struct iwl_priv *priv, int phymode, u16 channel);
+
+#endif