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authorJuuso Oikarinen <juuso.oikarinen@nokia.com>2010-02-18 13:25:43 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-02-19 15:52:43 -0500
commit7b21b6f8216494ab6b8b4dc9d15e48051a0f0a66 (patch)
treee28d461fba550ed5ea660e408b69dd0666161250
parent152ee6e09e2ce54d7d1cc9d338b82c0bf3cbbc95 (diff)
wl1271: Retrieve device mac address from the nvs file
Instead of always randomizing the MAC address, retrieve and configure the MAC address from the device specific nvs file. For now, randomize an address only if the address in the NVS is zero. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_boot.c8
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_main.c36
2 files changed, 27 insertions, 17 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_boot.c b/drivers/net/wireless/wl12xx/wl1271_boot.c
index bc3fe0275ca..57ba78d83e8 100644
--- a/drivers/net/wireless/wl12xx/wl1271_boot.c
+++ b/drivers/net/wireless/wl12xx/wl1271_boot.c
@@ -228,14 +228,6 @@ static int wl1271_boot_upload_nvs(struct wl1271 *wl)
nvs_len = sizeof(wl->nvs->nvs);
nvs_ptr = (u8 *)wl->nvs->nvs;
- /* Update the device MAC address into the nvs */
- nvs_ptr[11] = wl->mac_addr[0];
- nvs_ptr[10] = wl->mac_addr[1];
- nvs_ptr[6] = wl->mac_addr[2];
- nvs_ptr[5] = wl->mac_addr[3];
- nvs_ptr[4] = wl->mac_addr[4];
- nvs_ptr[3] = wl->mac_addr[5];
-
/*
* Layout before the actual NVS tables:
* 1 byte : burst length.
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 282c2bbfec8..b5d53a3fcc5 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -467,6 +467,32 @@ out:
return ret;
}
+static int wl1271_update_mac_addr(struct wl1271 *wl)
+{
+ int ret = 0;
+ u8 *nvs_ptr = (u8 *)wl->nvs->nvs;
+
+ /* get mac address from the NVS */
+ wl->mac_addr[0] = nvs_ptr[11];
+ wl->mac_addr[1] = nvs_ptr[10];
+ wl->mac_addr[2] = nvs_ptr[6];
+ wl->mac_addr[3] = nvs_ptr[5];
+ wl->mac_addr[4] = nvs_ptr[4];
+ wl->mac_addr[5] = nvs_ptr[3];
+
+ /* FIXME: if it is a zero-address, we should bail out. Now, instead,
+ we randomize an address */
+ if (is_zero_ether_addr(wl->mac_addr)) {
+ static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf};
+ memcpy(wl->mac_addr, nokia_oui, 3);
+ get_random_bytes(wl->mac_addr + 3, 3);
+ }
+
+ SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
+
+ return ret;
+}
+
static int wl1271_fetch_nvs(struct wl1271 *wl)
{
const struct firmware *fw;
@@ -496,7 +522,7 @@ static int wl1271_fetch_nvs(struct wl1271 *wl)
memcpy(wl->nvs, fw->data, sizeof(struct wl1271_nvs_file));
- ret = 0;
+ ret = wl1271_update_mac_addr(wl);
out:
release_firmware(fw);
@@ -1893,7 +1919,6 @@ static int __devinit wl1271_probe(struct spi_device *spi)
struct ieee80211_hw *hw;
struct wl1271 *wl;
int ret, i;
- static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf};
pdata = spi->dev.platform_data;
if (!pdata) {
@@ -1938,13 +1963,6 @@ static int __devinit wl1271_probe(struct spi_device *spi)
spin_lock_init(&wl->wl_lock);
- /*
- * In case our MAC address is not correctly set,
- * we use a random but Nokia MAC.
- */
- memcpy(wl->mac_addr, nokia_oui, 3);
- get_random_bytes(wl->mac_addr + 3, 3);
-
wl->state = WL1271_STATE_OFF;
mutex_init(&wl->mutex);