Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[pandora-kernel.git] / drivers / net / wireless / ath / ath5k / pci.c

diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c
index 66598a0..296c316 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/pci.c
+++ b/drivers/net/wireless/ath/ath5k/pci.c
@@ -17,6 +17,7 @@
 #include <linux/nl80211.h>
 #include <linux/pci.h>
 #include <linux/pci-aspm.h>
+#include <linux/etherdevice.h>
 #include "../ath.h"
 #include "ath5k.h"
 #include "debug.h"
@@ -57,7 +58,7 @@ static void ath5k_pci_read_cachesize(struct ath_common *common, int *csz)
        *csz = (int)u8tmp;
 
        /*
-        * This check was put in to avoid "unplesant" consequences if
+        * This check was put in to avoid "unpleasant" consequences if
         * the bootrom has not fully initialized all PCI devices.
         * Sometimes the cache line size register is not set
         */
@@ -108,11 +109,42 @@ int ath5k_hw_read_srev(struct ath5k_hw *ah)
        return 0;
 }
 
+/*
+ * Read the MAC address from eeprom or platform_data
+ */
+static int ath5k_pci_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
+{
+       u8 mac_d[ETH_ALEN] = {};
+       u32 total, offset;
+       u16 data;
+       int octet;
+
+       AR5K_EEPROM_READ(0x20, data);
+
+       for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) {
+               AR5K_EEPROM_READ(offset, data);
+
+               total += data;
+               mac_d[octet + 1] = data & 0xff;
+               mac_d[octet] = data >> 8;
+               octet += 2;
+       }
+
+       if (!total || total == 3 * 0xffff)
+               return -EINVAL;
+
+       memcpy(mac, mac_d, ETH_ALEN);
+
+       return 0;
+}
+
+
 /* Common ath_bus_opts structure */
 static const struct ath_bus_ops ath_pci_bus_ops = {
        .ath_bus_type = ATH_PCI,
        .read_cachesize = ath5k_pci_read_cachesize,
        .eeprom_read = ath5k_pci_eeprom_read,
+       .eeprom_read_mac = ath5k_pci_eeprom_read_mac,
 };
 
 /********************\