Catch ipw2200 up to equivelancy with v1.0.1

This commit contains the following fixes:

Fixed #559: iwconfig rate support (thanks to Florian Hackenberger)

Improved link signal quality calculation (thanks to Bill Moss)

Fixed a problem with sensitivity threshold during association

Added iwpriv for turning forcing long preamble support:
  % iwpriv eth1 set_preamble 1|0

Fixed #542 and #377 support for short preamble

Fixed locked BSSID reporting channel number (thanks to Pedro
Ramalhais)

Fixed type-o with scan watchdog timeout message (thanks to Pedro
Ramalhais)

Changed logic for displaying get_mode output so the code is easier to
follow (thanks to Pedro Ramalhais)

Added initial support for WPA (thanks to Yi Zhu) -- tested with
wpa_supplicant (either tip w/ ipw driver, or with -Dipw2100) with
both CCMP and TKIP

Fixed problem with CCMP not working due to uninitialized 802.11
header fields (thanks to Pedro Ramalhais)

Bug references are to defects stored on http://bughost.orgSigned-off-by: James Ketrenos <jketreno@linux.intel.com>

drivers/net/wireless/ipw2200.h

@@ -168,7 +168,8 @@ enum connection_manager_assoc_states {
 #define DCT_FLAG_CTS_REQUIRED              0x02
 
 /* use short preamble */
-#define DCT_FLAG_SHORT_PREMBL              0x04
+#define DCT_FLAG_LONG_PREAMBLE             0x00
+#define DCT_FLAG_SHORT_PREAMBLE            0x04
 
 /* RTS/CTS first */
 #define DCT_FLAG_RTS_REQD                  0x08
@@ -899,7 +900,7 @@ struct ipw_cmd {
 #define CFG_STATIC_ESSID        (1<<1)	/* Restrict assoc. to single SSID */
 #define CFG_STATIC_BSSID        (1<<2)	/* Restrict assoc. to single BSSID */
 #define CFG_CUSTOM_MAC          (1<<3)
-#define CFG_PREAMBLE            (1<<4)
+#define CFG_PREAMBLE_LONG       (1<<4)
 #define CFG_ADHOC_PERSIST       (1<<5)
 #define CFG_ASSOCIATE           (1<<6)
 #define CFG_FIXED_RATE          (1<<7)
@@ -1206,12 +1207,18 @@ do { if (ipw_debug_level & (level)) \
 /*
  * RESET Register Bit Indexes
  */
-#define CBD_RESET_REG_PRINCETON_RESET 0x00000001	/* Bit 0 (LSB) */
-#define CX2_RESET_REG_SW_RESET        0x00000080	/* Bit 7       */
-#define CX2_RESET_REG_MASTER_DISABLED 0x00000100	/* Bit 8       */
-#define CX2_RESET_REG_STOP_MASTER     0x00000200	/* Bit 9       */
-#define CX2_ARC_KESHET_CONFIG         0x08000000	/* Bit 27      */
-#define CX2_START_STANDBY             0x00000004	/* Bit 2       */
+#define CBD_RESET_REG_PRINCETON_RESET (1<<0)
+#define CX2_START_STANDBY             (1<<2)
+#define CX2_ACTIVITY_LED              (1<<4)
+#define CX2_ASSOCIATED_LED            (1<<5)
+#define CX2_OFDM_LED                  (1<<6)
+#define CX2_RESET_REG_SW_RESET        (1<<7)
+#define CX2_RESET_REG_MASTER_DISABLED (1<<8)
+#define CX2_RESET_REG_STOP_MASTER     (1<<9)
+#define CX2_GATE_ODMA                 (1<<25)
+#define CX2_GATE_IDMA                 (1<<26)
+#define CX2_ARC_KESHET_CONFIG         (1<<27)
+#define CX2_GATE_ADMA                 (1<<29)
 
 #define CX2_CSR_CIS_UPPER_BOUND	0x00000200
 #define CX2_DOMAIN_0_END 0x1000