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path: root/drivers/net/wireless/rt2x00/rt2500usb.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2500usb.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2500usb.c179
1 files changed, 102 insertions, 77 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 614600c5510..f4e6f6eb7fb 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -282,65 +282,20 @@ static void rt2500usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, &reg, sizeof(reg));
}
-static void rt2500usb_config_packet_filter(struct rt2x00_dev *rt2x00dev,
- const unsigned int filter)
-{
- int promisc = !!(filter & IFF_PROMISC);
- int multicast = !!(filter & IFF_MULTICAST);
- int broadcast = !!(filter & IFF_BROADCAST);
- u16 reg;
-
- rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME, !promisc);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST, !multicast);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, !broadcast);
- rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
-}
-
static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev, const int type)
{
+ struct interface *intf = &rt2x00dev->interface;
u16 reg;
rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
/*
- * Apply hardware packet filter.
- */
- rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
-
- if (!is_monitor_present(&rt2x00dev->interface) &&
- (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS, 1);
- else
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS, 0);
-
- /*
- * If there is a non-monitor interface present
- * the packet should be strict (even if a monitor interface is present!).
- * When there is only 1 interface present which is in monitor mode
- * we should start accepting _all_ frames.
- */
- if (is_interface_present(&rt2x00dev->interface)) {
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC, 1);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL, 1);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL, 1);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
- } else if (is_monitor_present(&rt2x00dev->interface)) {
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC, 0);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL, 0);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL, 0);
- rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 0);
- }
-
- rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
-
- /*
* Enable beacon config
*/
rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET,
(PREAMBLE + get_duration(IEEE80211_HEADER, 2)) >> 6);
- if (type == IEEE80211_IF_TYPE_STA)
+ if (is_interface_type(intf, IEEE80211_IF_TYPE_STA))
rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW, 0);
else
rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW, 2);
@@ -354,20 +309,16 @@ static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev, const int type)
rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
- if (is_interface_present(&rt2x00dev->interface)) {
- rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
- rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
- }
-
+ rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
+ rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
- if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
+ if (is_interface_type(intf, IEEE80211_IF_TYPE_IBSS) ||
+ is_interface_type(intf, IEEE80211_IF_TYPE_AP))
rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 2);
- else if (type == IEEE80211_IF_TYPE_STA)
+ else if (is_interface_type(intf, IEEE80211_IF_TYPE_STA))
rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 1);
- else if (is_monitor_present(&rt2x00dev->interface) &&
- !is_interface_present(&rt2x00dev->interface))
+ else
rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
-
rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
}
@@ -1084,7 +1035,7 @@ static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
*/
static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
struct data_desc *txd,
- struct data_entry_desc *desc,
+ struct txdata_entry_desc *desc,
struct ieee80211_hdr *ieee80211hdr,
unsigned int length,
struct ieee80211_tx_control *control)
@@ -1156,8 +1107,8 @@ static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
/*
* RX control handlers
*/
-static int rt2500usb_fill_rxdone(struct data_entry *entry,
- int *signal, int *rssi, int *ofdm, int *size)
+static void rt2500usb_fill_rxdone(struct data_entry *entry,
+ struct rxdata_entry_desc *desc)
{
struct urb *urb = entry->priv;
struct data_desc *rxd = (struct data_desc *)(entry->skb->data +
@@ -1169,21 +1120,22 @@ static int rt2500usb_fill_rxdone(struct data_entry *entry,
rt2x00_desc_read(rxd, 0, &word0);
rt2x00_desc_read(rxd, 1, &word1);
- if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR) ||
- rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR) ||
- rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
- return -EINVAL;
+ desc->flags = 0;
+ if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
+ desc->flags |= RX_FLAG_FAILED_FCS_CRC;
+ if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
+ desc->flags |= RX_FLAG_FAILED_PLCP_CRC;
/*
* Obtain the status about this packet.
*/
- *signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
- *rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
+ desc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
+ desc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
entry->ring->rt2x00dev->rssi_offset;
- *ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
- *size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
+ desc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
+ desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
- return 0;
+ return;
}
/*
@@ -1549,9 +1501,7 @@ static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
rt2x00dev->hw->flags =
IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
IEEE80211_HW_RX_INCLUDES_FCS |
- IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
- IEEE80211_HW_MONITOR_DURING_OPER |
- IEEE80211_HW_NO_PROBE_FILTERING;
+ IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
rt2x00dev->hw->max_signal = MAX_SIGNAL;
rt2x00dev->hw->max_rssi = MAX_RX_SSI;
@@ -1621,10 +1571,8 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
rt2500usb_probe_hw_mode(rt2x00dev);
/*
- * USB devices require scheduled packet filter toggling
- *This device requires the beacon ring
+ * This device requires the beacon ring
*/
- __set_bit(PACKET_FILTER_SCHEDULED, &rt2x00dev->flags);
__set_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags);
/*
@@ -1638,6 +1586,82 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
/*
* IEEE80211 stack callback functions.
*/
+static void rt2500usb_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ int mc_count,
+ struct dev_addr_list *mc_list)
+{
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+ struct interface *intf = &rt2x00dev->interface;
+ u16 reg;
+
+ /*
+ * Mask off any flags we are going to ignore from
+ * the total_flags field.
+ */
+ *total_flags &=
+ FIF_ALLMULTI |
+ FIF_FCSFAIL |
+ FIF_PLCPFAIL |
+ FIF_CONTROL |
+ FIF_OTHER_BSS |
+ FIF_PROMISC_IN_BSS;
+
+ /*
+ * Apply some rules to the filters:
+ * - Some filters imply different filters to be set.
+ * - Some things we can't filter out at all.
+ * - Some filters are set based on interface type.
+ */
+ if (mc_count)
+ *total_flags |= FIF_ALLMULTI;
+ if (changed_flags & FIF_OTHER_BSS ||
+ changed_flags & FIF_PROMISC_IN_BSS)
+ *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
+ if (is_interface_type(intf, IEEE80211_IF_TYPE_AP))
+ *total_flags |= FIF_PROMISC_IN_BSS;
+
+ /*
+ * Check if there is any work left for us.
+ */
+ if (intf->filter == *total_flags)
+ return;
+ intf->filter = *total_flags;
+
+ /*
+ * When in atomic context, reschedule and let rt2x00lib
+ * call this function again.
+ */
+ if (in_atomic()) {
+ queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
+ return;
+ }
+
+ /*
+ * Start configuration steps.
+ * Note that the version error will always be dropped
+ * and broadcast frames will always be accepted since
+ * there is no filter for it at this time.
+ */
+ rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
+ rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
+ !(*total_flags & FIF_FCSFAIL));
+ rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
+ !(*total_flags & FIF_PLCPFAIL));
+ rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
+ !(*total_flags & FIF_CONTROL));
+ rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
+ !(*total_flags & FIF_PROMISC_IN_BSS));
+ rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
+ !(*total_flags & FIF_PROMISC_IN_BSS));
+ rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
+ rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
+ !(*total_flags & FIF_ALLMULTI));
+ rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
+ rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
+}
+
static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct ieee80211_tx_control *control)
@@ -1714,11 +1738,13 @@ static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
static const struct ieee80211_ops rt2500usb_mac80211_ops = {
.tx = rt2x00mac_tx,
+ .start = rt2x00mac_start,
+ .stop = rt2x00mac_stop,
.add_interface = rt2x00mac_add_interface,
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.config_interface = rt2x00mac_config_interface,
- .set_multicast_list = rt2x00mac_set_multicast_list,
+ .configure_filter = rt2500usb_configure_filter,
.get_stats = rt2x00mac_get_stats,
.conf_tx = rt2x00mac_conf_tx,
.get_tx_stats = rt2x00mac_get_tx_stats,
@@ -1739,7 +1765,6 @@ static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
.fill_rxdone = rt2500usb_fill_rxdone,
.config_mac_addr = rt2500usb_config_mac_addr,
.config_bssid = rt2500usb_config_bssid,
- .config_packet_filter = rt2500usb_config_packet_filter,
.config_type = rt2500usb_config_type,
.config = rt2500usb_config,
};