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authorWey-Yi Guy <wey-yi.w.guy@intel.com>2009-11-13 11:56:23 -0800
committerJohn W. Linville <linville@tuxdriver.com>2009-11-18 17:09:02 -0500
commit85f0d9e87794818356146996826b829100daa6bc (patch)
tree6420ac21cd980e3685a6adfc2d77a2cd26c92ab0 /drivers/net/wireless/iwlwifi/iwl-eeprom.h
parentdfef948ed2ba69cf041840b5e860d6b4e16fa0b1 (diff)
iwlwifi: validate enhanced tx power entry
Validate enhanced tx power entry read from EEPROM before applying the tx power value. Different versions of EEPROM might contain different size of table; always a good idea to make sure the entry is valid before applying to the targeted channel. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-eeprom.h')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-eeprom.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
index 5ba5a4e9e49..5cd2b66bbe4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
@@ -127,19 +127,21 @@ struct iwl_eeprom_channel {
* Enhanced regulatory tx power portion of eeprom image can be broken down
* into individual structures; each one is 8 bytes in size and contain the
* following information
+ * @common: (desc + channel) not used by driver, should _NOT_ be "zero"
* @chain_a_max_pwr: chain a max power in 1/2 dBm
* @chain_b_max_pwr: chain b max power in 1/2 dBm
* @chain_c_max_pwr: chain c max power in 1/2 dBm
+ * @reserved: not used, should be "zero"
* @mimo2_max_pwr: mimo2 max power in 1/2 dBm
* @mimo3_max_pwr: mimo3 max power in 1/2 dBm
*
*/
struct iwl_eeprom_enhanced_txpwr {
- u16 reserved;
+ u16 common;
s8 chain_a_max;
s8 chain_b_max;
s8 chain_c_max;
- s8 reserved1;
+ s8 reserved;
s8 mimo2_max;
s8 mimo3_max;
} __attribute__ ((packed));