diff options
| author | Felix Fietkau | 2011-04-13 21:56:44 +0200 |
|---|---|---|
| committer | John W. Linville | 2011-04-14 21:35:09 +0200 |
| commit | fa9bfd61e03e8dbcf110a93b373234d17a732233 (patch) | |
| tree | d2d3b0e6ac74ffba6eda683246098bb7d34016a5 /drivers/net/wireless/ath/ath5k/pci.c | |
| parent | ath: unshare struct ath_bus_ops between ath5k and ath9k (diff) | |
| download | kernel-qcow2-linux-fa9bfd61e03e8dbcf110a93b373234d17a732233.tar.gz kernel-qcow2-linux-fa9bfd61e03e8dbcf110a93b373234d17a732233.tar.xz kernel-qcow2-linux-fa9bfd61e03e8dbcf110a93b373234d17a732233.zip | |
ath5k: add a new bus op for reading the mac address
On AHB, the calibration data usually does not contain a valid MAC address,
the correct MAC address is stored in the board config.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/pci.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/pci.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c index 66598a0d1df0..5cc4a2fe47b6 100644 --- 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" @@ -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, }; /********************\ |