summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/rndis_wlan.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/rndis_wlan.c')
-rw-r--r--drivers/net/wireless/rndis_wlan.c402
1 files changed, 352 insertions, 50 deletions
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index 71b5971da59..848cc2cce24 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -129,6 +129,7 @@ MODULE_PARM_DESC(workaround_interval,
#define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
#define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
#define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
+#define OID_802_11_POWER_MODE cpu_to_le32(0x0d010216)
#define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
@@ -156,6 +157,12 @@ MODULE_PARM_DESC(workaround_interval,
#define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
+/* Known device types */
+#define RNDIS_UNKNOWN 0
+#define RNDIS_BCM4320A 1
+#define RNDIS_BCM4320B 2
+
+
/* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
* slightly modified for datatype endianess, etc
*/
@@ -233,6 +240,12 @@ enum ndis_80211_addwep_bits {
NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
};
+enum ndis_80211_power_mode {
+ NDIS_80211_POWER_MODE_CAM,
+ NDIS_80211_POWER_MODE_MAX_PSP,
+ NDIS_80211_POWER_MODE_FAST_PSP,
+};
+
struct ndis_80211_auth_request {
__le32 length;
u8 bssid[6];
@@ -472,12 +485,16 @@ struct rndis_wlan_private {
struct mutex command_lock;
unsigned long work_pending;
int last_qual;
+ s32 cqm_rssi_thold;
+ u32 cqm_rssi_hyst;
+ int last_cqm_event_rssi;
struct ieee80211_supported_band band;
struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
+ int device_type;
int caps;
int multicast_size;
@@ -493,10 +510,10 @@ struct rndis_wlan_private {
/* hardware state */
bool radio_on;
+ int power_mode;
int infra_mode;
bool connected;
u8 bssid[ETH_ALEN];
- struct ndis_80211_ssid essid;
__le32 current_command_oid;
/* encryption stuff */
@@ -547,7 +564,7 @@ static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool pairwise, const u8 *mac_addr);
static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
- u8 key_index);
+ u8 key_index, bool unicast, bool multicast);
static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
u8 *mac, struct station_info *sinfo);
@@ -563,7 +580,14 @@ static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
-static struct cfg80211_ops rndis_config_ops = {
+static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
+ bool enabled, int timeout);
+
+static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
+ struct net_device *dev,
+ s32 rssi_thold, u32 rssi_hyst);
+
+static const struct cfg80211_ops rndis_config_ops = {
.change_virtual_intf = rndis_change_virtual_intf,
.scan = rndis_scan,
.set_wiphy_params = rndis_set_wiphy_params,
@@ -582,6 +606,8 @@ static struct cfg80211_ops rndis_config_ops = {
.set_pmksa = rndis_set_pmksa,
.del_pmksa = rndis_del_pmksa,
.flush_pmksa = rndis_flush_pmksa,
+ .set_power_mgmt = rndis_set_power_mgmt,
+ .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
};
static void *rndis_wiphy_privid = &rndis_wiphy_privid;
@@ -680,6 +706,7 @@ static const char *oid_to_string(__le32 oid)
OID_STR(OID_802_11_ADD_KEY);
OID_STR(OID_802_11_REMOVE_KEY);
OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
+ OID_STR(OID_802_11_CAPABILITY);
OID_STR(OID_802_11_PMKID);
OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
@@ -690,6 +717,7 @@ static const char *oid_to_string(__le32 oid)
OID_STR(OID_802_11_RTS_THRESHOLD);
OID_STR(OID_802_11_SUPPORTED_RATES);
OID_STR(OID_802_11_CONFIGURATION);
+ OID_STR(OID_802_11_POWER_MODE);
OID_STR(OID_802_11_BSSID_LIST);
#undef OID_STR
}
@@ -810,7 +838,8 @@ exit_unlock:
return ret;
}
-static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
+static int rndis_set_oid(struct usbnet *dev, __le32 oid, const void *data,
+ int len)
{
struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
union {
@@ -994,7 +1023,18 @@ static int level_to_qual(int level)
*/
static int set_infra_mode(struct usbnet *usbdev, int mode);
static void restore_keys(struct usbnet *usbdev);
-static int rndis_check_bssid_list(struct usbnet *usbdev);
+static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
+ bool *matched);
+
+static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
+{
+ __le32 tmp;
+
+ /* Note: OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
+ tmp = cpu_to_le32(1);
+ return rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
+ sizeof(tmp));
+}
static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
{
@@ -1007,7 +1047,6 @@ static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
return ret;
}
if (ret == 0) {
- memcpy(&priv->essid, ssid, sizeof(priv->essid));
priv->radio_on = true;
netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
}
@@ -1015,7 +1054,7 @@ static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
return ret;
}
-static int set_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
+static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
{
int ret;
@@ -1031,7 +1070,9 @@ static int set_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
static int clear_bssid(struct usbnet *usbdev)
{
- u8 broadcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ static const u8 broadcast_mac[ETH_ALEN] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ };
return set_bssid(usbdev, broadcast_mac);
}
@@ -1904,14 +1945,14 @@ static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
struct usbnet *usbdev = netdev_priv(dev);
struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
int ret;
- __le32 tmp;
+ int delay = SCAN_DELAY_JIFFIES;
netdev_dbg(usbdev->net, "cfg80211.scan\n");
/* Get current bssid list from device before new scan, as new scan
* clears internal bssid list.
*/
- rndis_check_bssid_list(usbdev);
+ rndis_check_bssid_list(usbdev, NULL, NULL);
if (!request)
return -EINVAL;
@@ -1921,13 +1962,13 @@ static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
priv->scan_request = request;
- tmp = cpu_to_le32(1);
- ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
- sizeof(tmp));
+ ret = rndis_start_bssid_list_scan(usbdev);
if (ret == 0) {
+ if (priv->device_type == RNDIS_BCM4320A)
+ delay = HZ;
+
/* Wait before retrieving scan results from device */
- queue_delayed_work(priv->workqueue, &priv->scan_work,
- SCAN_DELAY_JIFFIES);
+ queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
}
return ret;
@@ -1946,8 +1987,8 @@ static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
int ie_len, bssid_len;
u8 *ie;
- netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM]\n",
- bssid->ssid.essid, bssid->mac);
+ netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
+ bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
/* parse bssid structure */
bssid_len = le32_to_cpu(bssid->length);
@@ -1981,49 +2022,98 @@ static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
GFP_KERNEL);
}
-static int rndis_check_bssid_list(struct usbnet *usbdev)
+static struct ndis_80211_bssid_ex *next_bssid_list_item(
+ struct ndis_80211_bssid_ex *bssid,
+ int *bssid_len, void *buf, int len)
+{
+ void *buf_end, *bssid_end;
+
+ buf_end = (char *)buf + len;
+ bssid_end = (char *)bssid + *bssid_len;
+
+ if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
+ *bssid_len = 0;
+ return NULL;
+ } else {
+ bssid = (void *)((char *)bssid + *bssid_len);
+ *bssid_len = le32_to_cpu(bssid->length);
+ return bssid;
+ }
+}
+
+static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
+ int bssid_len, void *buf, int len)
+{
+ void *buf_end, *bssid_end;
+
+ if (!bssid || bssid_len <= 0 || bssid_len > len)
+ return false;
+
+ buf_end = (char *)buf + len;
+ bssid_end = (char *)bssid + bssid_len;
+
+ return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
+}
+
+static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
+ bool *matched)
{
void *buf = NULL;
struct ndis_80211_bssid_list_ex *bssid_list;
struct ndis_80211_bssid_ex *bssid;
- int ret = -EINVAL, len, count, bssid_len;
- bool resized = false;
+ int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
- netdev_dbg(usbdev->net, "check_bssid_list\n");
+ netdev_dbg(usbdev->net, "%s()\n", __func__);
len = CONTROL_BUFFER_SIZE;
resize_buf:
- buf = kmalloc(len, GFP_KERNEL);
+ buf = kzalloc(len, GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto out;
}
- ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
- if (ret != 0)
+ /* BSSID-list might have got bigger last time we checked, keep
+ * resizing until it won't get any bigger.
+ */
+ new_len = len;
+ ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &new_len);
+ if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
goto out;
- if (!resized && len > CONTROL_BUFFER_SIZE) {
- resized = true;
+ if (new_len > len) {
+ len = new_len;
kfree(buf);
goto resize_buf;
}
+ len = new_len;
+
bssid_list = buf;
- bssid = bssid_list->bssid;
- bssid_len = le32_to_cpu(bssid->length);
count = le32_to_cpu(bssid_list->num_items);
- netdev_dbg(usbdev->net, "check_bssid_list: %d BSSIDs found (buflen: %d)\n",
- count, len);
+ real_count = 0;
+ netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
+
+ bssid_len = 0;
+ bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
- while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
- rndis_bss_info_update(usbdev, bssid);
+ /* Device returns incorrect 'num_items'. Workaround by ignoring the
+ * received 'num_items' and walking through full bssid buffer instead.
+ */
+ while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
+ if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
+ matched) {
+ if (compare_ether_addr(bssid->mac, match_bssid))
+ *matched = true;
+ }
- bssid = (void *)bssid + bssid_len;
- bssid_len = le32_to_cpu(bssid->length);
- count--;
+ real_count++;
+ bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
}
+ netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
+ " %d\n", __func__, count, real_count);
+
out:
kfree(buf);
return ret;
@@ -2041,7 +2131,7 @@ static void rndis_get_scan_results(struct work_struct *work)
if (!priv->scan_request)
return;
- ret = rndis_check_bssid_list(usbdev);
+ ret = rndis_check_bssid_list(usbdev, NULL, NULL);
cfg80211_scan_done(priv->scan_request, ret < 0);
@@ -2355,7 +2445,7 @@ static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
}
static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
- u8 key_index)
+ u8 key_index, bool unicast, bool multicast)
{
struct rndis_wlan_private *priv = wiphy_priv(wiphy);
struct usbnet *usbdev = priv->usbdev;
@@ -2365,6 +2455,9 @@ static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
priv->encr_tx_key_index = key_index;
+ if (is_wpa_key(priv, key_index))
+ return 0;
+
key = priv->encr_keys[key_index];
return add_wep_key(usbdev, key.material, key.len, key_index);
@@ -2495,6 +2588,136 @@ static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
}
+static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
+ bool enabled, int timeout)
+{
+ struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+ struct usbnet *usbdev = priv->usbdev;
+ int power_mode;
+ __le32 mode;
+ int ret;
+
+ netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
+ enabled ? "enabled" : "disabled",
+ timeout);
+
+ if (enabled)
+ power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
+ else
+ power_mode = NDIS_80211_POWER_MODE_CAM;
+
+ if (power_mode == priv->power_mode)
+ return 0;
+
+ priv->power_mode = power_mode;
+
+ mode = cpu_to_le32(power_mode);
+ ret = rndis_set_oid(usbdev, OID_802_11_POWER_MODE, &mode, sizeof(mode));
+
+ netdev_dbg(usbdev->net, "%s(): OID_802_11_POWER_MODE -> %d\n",
+ __func__, ret);
+
+ return ret;
+}
+
+static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
+ struct net_device *dev,
+ s32 rssi_thold, u32 rssi_hyst)
+{
+ struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+
+ priv->cqm_rssi_thold = rssi_thold;
+ priv->cqm_rssi_hyst = rssi_hyst;
+ priv->last_cqm_event_rssi = 0;
+
+ return 0;
+}
+
+static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
+ struct ndis_80211_assoc_info *info)
+{
+ struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+ struct ieee80211_channel *channel;
+ struct ndis_80211_conf config;
+ struct ndis_80211_ssid ssid;
+ s32 signal;
+ u64 timestamp;
+ u16 capability;
+ u16 beacon_interval;
+ __le32 rssi;
+ u8 ie_buf[34];
+ int len, ret, ie_len;
+
+ /* Get signal quality, in case of error use rssi=0 and ignore error. */
+ len = sizeof(rssi);
+ rssi = 0;
+ ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
+ signal = level_to_qual(le32_to_cpu(rssi));
+
+ netdev_dbg(usbdev->net, "%s(): OID_802_11_RSSI -> %d, "
+ "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
+ level_to_qual(le32_to_cpu(rssi)));
+
+ /* Get AP capabilities */
+ if (info) {
+ capability = le16_to_cpu(info->resp_ie.capa);
+ } else {
+ /* Set atleast ESS/IBSS capability */
+ capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
+ WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
+ }
+
+ /* Get channel and beacon interval */
+ len = sizeof(config);
+ ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
+ netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n",
+ __func__, ret);
+ if (ret >= 0) {
+ beacon_interval = le16_to_cpu(config.beacon_period);
+ channel = ieee80211_get_channel(priv->wdev.wiphy,
+ KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
+ if (!channel) {
+ netdev_warn(usbdev->net, "%s(): could not get channel."
+ "\n", __func__);
+ return;
+ }
+ } else {
+ netdev_warn(usbdev->net, "%s(): could not get configuration.\n",
+ __func__);
+ return;
+ }
+
+ /* Get SSID, in case of error, use zero length SSID and ignore error. */
+ len = sizeof(ssid);
+ memset(&ssid, 0, sizeof(ssid));
+ ret = rndis_query_oid(usbdev, OID_802_11_SSID, &ssid, &len);
+ netdev_dbg(usbdev->net, "%s(): OID_802_11_SSID -> %d, len: %d, ssid: "
+ "'%.32s'\n", __func__, ret,
+ le32_to_cpu(ssid.length), ssid.essid);
+
+ if (le32_to_cpu(ssid.length) > 32)
+ ssid.length = cpu_to_le32(32);
+
+ ie_buf[0] = WLAN_EID_SSID;
+ ie_buf[1] = le32_to_cpu(ssid.length);
+ memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
+
+ ie_len = le32_to_cpu(ssid.length) + 2;
+
+ /* no tsf */
+ timestamp = 0;
+
+ netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
+ "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
+ "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
+ bssid, (u32)timestamp, capability, beacon_interval, ie_len,
+ ssid.essid, signal);
+
+ cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
+ timestamp, capability, beacon_interval, ie_buf, ie_len,
+ signal, GFP_KERNEL);
+}
+
/*
* workers, indication handlers, device poller
*/
@@ -2507,6 +2730,7 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
u8 *req_ie, *resp_ie;
int ret, offset;
bool roamed = false;
+ bool match_bss;
if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
/* received media connect indication while connected, either
@@ -2558,6 +2782,13 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
resp_ie_len =
CONTROL_BUFFER_SIZE - offset;
}
+ } else {
+ /* Since rndis_wlan_craft_connected_bss() might use info
+ * later and expects info to contain valid data if
+ * non-null, free info and set NULL here.
+ */
+ kfree(info);
+ info = NULL;
}
} else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
return;
@@ -2569,13 +2800,26 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
bssid, roamed ? " roamed" : "");
- /* Internal bss list in device always contains at least the currently
+ /* Internal bss list in device should contain at least the currently
* connected bss and we can get it to cfg80211 with
* rndis_check_bssid_list().
- * NOTE: This is true for Broadcom chip, but not mentioned in RNDIS
- * spec.
+ *
+ * NDIS spec says: "If the device is associated, but the associated
+ * BSSID is not in its BSSID scan list, then the driver must add an
+ * entry for the BSSID at the end of the data that it returns in
+ * response to query of OID_802_11_BSSID_LIST."
+ *
+ * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
*/
- rndis_check_bssid_list(usbdev);
+ match_bss = false;
+ rndis_check_bssid_list(usbdev, bssid, &match_bss);
+
+ if (!is_zero_ether_addr(bssid) && !match_bss) {
+ /* Couldn't get bss from device, we need to manually craft bss
+ * for cfg80211.
+ */
+ rndis_wlan_craft_connected_bss(usbdev, bssid, info);
+ }
if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
if (!roamed)
@@ -2918,6 +3162,32 @@ static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
return retval;
}
+static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
+{
+ struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+ enum nl80211_cqm_rssi_threshold_event event;
+ int thold, hyst, last_event;
+
+ if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
+ return;
+ if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
+ return;
+
+ last_event = priv->last_cqm_event_rssi;
+ thold = priv->cqm_rssi_thold;
+ hyst = priv->cqm_rssi_hyst;
+
+ if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
+ event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
+ else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
+ event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
+ else
+ return;
+
+ priv->last_cqm_event_rssi = rssi;
+ cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
+}
+
#define DEVICE_POLLER_JIFFIES (HZ)
static void rndis_device_poller(struct work_struct *work)
{
@@ -2934,13 +3204,28 @@ static void rndis_device_poller(struct work_struct *work)
* also polls device with rndis_command() and catches for media link
* indications.
*/
- if (!is_associated(usbdev))
+ if (!is_associated(usbdev)) {
+ /* Workaround bad scanning in BCM4320a devices with active
+ * background scanning when not associated.
+ */
+ if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
+ !priv->scan_request) {
+ /* Get previous scan results */
+ rndis_check_bssid_list(usbdev, NULL, NULL);
+
+ /* Initiate new scan */
+ rndis_start_bssid_list_scan(usbdev);
+ }
+
goto end;
+ }
len = sizeof(rssi);
ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
- if (ret == 0)
+ if (ret == 0) {
priv->last_qual = level_to_qual(le32_to_cpu(rssi));
+ rndis_do_cqm(usbdev, le32_to_cpu(rssi));
+ }
netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
@@ -2992,10 +3277,12 @@ end:
/*
* driver/device initialization
*/
-static void rndis_copy_module_params(struct usbnet *usbdev)
+static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
{
struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+ priv->device_type = device_type;
+
priv->param_country[0] = modparam_country[0];
priv->param_country[1] = modparam_country[1];
priv->param_country[2] = 0;
@@ -3038,12 +3325,25 @@ static void rndis_copy_module_params(struct usbnet *usbdev)
priv->param_workaround_interval = modparam_workaround_interval;
}
+static int unknown_early_init(struct usbnet *usbdev)
+{
+ /* copy module parameters for unknown so that iwconfig reports txpower
+ * and workaround parameter is copied to private structure correctly.
+ */
+ rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
+
+ /* This is unknown device, so do not try set configuration parameters.
+ */
+
+ return 0;
+}
+
static int bcm4320a_early_init(struct usbnet *usbdev)
{
/* copy module parameters for bcm4320a so that iwconfig reports txpower
* and workaround parameter is copied to private structure correctly.
*/
- rndis_copy_module_params(usbdev);
+ rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
/* bcm4320a doesn't handle configuration parameters well. Try
* set any and you get partially zeroed mac and broken device.
@@ -3057,7 +3357,7 @@ static int bcm4320b_early_init(struct usbnet *usbdev)
struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
char buf[8];
- rndis_copy_module_params(usbdev);
+ rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
/* Early initialization settings, setting these won't have effect
* if called after generic_rndis_bind().
@@ -3187,13 +3487,15 @@ static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
set_default_iw_params(usbdev);
+ priv->power_mode = -1;
+
/* set default rts/frag */
rndis_set_wiphy_params(wiphy,
WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
- /* turn radio on */
- priv->radio_on = true;
- disassociate(usbdev, true);
+ /* turn radio off on init */
+ priv->radio_on = false;
+ disassociate(usbdev, false);
netif_carrier_off(usbdev->net);
return 0;
@@ -3320,7 +3622,7 @@ static const struct driver_info rndis_wlan_info = {
.tx_fixup = rndis_tx_fixup,
.reset = rndis_wlan_reset,
.stop = rndis_wlan_stop,
- .early_init = bcm4320a_early_init,
+ .early_init = unknown_early_init,
.indication = rndis_wlan_indication,
};