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wl12xx: add testmode operation to read the BD_ADDR from Fuse ROM

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Add a testmode command to retrieve the BD_ADDR that is stored in the
Fuse ROM in newer PGs.  In old PGs this operation is not supported.
The caller can then derive the MAC addresses from it.

Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Luciano Coelho 2012-01-13 14:04:29 +02:00
parent 5e037e7480
commit 75f25548be
1 changed files with 50 additions and 0 deletions
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50
drivers/net/wireless/wl12xx/testmode.c
View File

@ -30,6 +30,7 @@
#include "acx.h"
#include "reg.h"
#include "ps.h"
#include "io.h"
#define WL1271_TM_MAX_DATA_LENGTH 1024
@ -41,6 +42,7 @@ enum wl1271_tm_commands {
WL1271_TM_CMD_NVS_PUSH, /* Not in use. Keep to not break ABI */
WL1271_TM_CMD_SET_PLT_MODE,
WL1271_TM_CMD_RECOVER,
WL1271_TM_CMD_GET_MAC,
__WL1271_TM_CMD_AFTER_LAST
};
@ -264,6 +266,52 @@ static int wl1271_tm_cmd_recover(struct wl1271 *wl, struct nlattr *tb[])
return 0;
}
static int wl12xx_tm_cmd_get_mac(struct wl1271 *wl, struct nlattr *tb[])
{
struct sk_buff *skb;
u8 mac_addr[ETH_ALEN];
int ret = 0;
mutex_lock(&wl->mutex);
if (wl->state != WL1271_STATE_PLT) {
ret = -EINVAL;
goto out;
}
if (wl->fuse_oui_addr == 0 && wl->fuse_nic_addr == 0) {
ret = -EOPNOTSUPP;
goto out;
}
mac_addr[0] = (u8)(wl->fuse_oui_addr >> 16);
mac_addr[1] = (u8)(wl->fuse_oui_addr >> 8);
mac_addr[2] = (u8) wl->fuse_oui_addr;
mac_addr[3] = (u8)(wl->fuse_nic_addr >> 16);
mac_addr[4] = (u8)(wl->fuse_nic_addr >> 8);
mac_addr[5] = (u8) wl->fuse_nic_addr;
skb = cfg80211_testmode_alloc_reply_skb(wl->hw->wiphy, ETH_ALEN);
if (!skb) {
ret = -ENOMEM;
goto out;
}
NLA_PUT(skb, WL1271_TM_ATTR_DATA, ETH_ALEN, mac_addr);
ret = cfg80211_testmode_reply(skb);
if (ret < 0)
goto out;
out:
mutex_unlock(&wl->mutex);
return ret;
nla_put_failure:
kfree_skb(skb);
ret = -EMSGSIZE;
goto out;
}
int wl1271_tm_cmd(struct ieee80211_hw *hw, void *data, int len)
{
struct wl1271 *wl = hw->priv;
@ -288,6 +336,8 @@ int wl1271_tm_cmd(struct ieee80211_hw *hw, void *data, int len)
return wl1271_tm_cmd_set_plt_mode(wl, tb);
case WL1271_TM_CMD_RECOVER:
return wl1271_tm_cmd_recover(wl, tb);
case WL1271_TM_CMD_GET_MAC:
return wl12xx_tm_cmd_get_mac(wl, tb);
default:
return -EOPNOTSUPP;
}