#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/firmware.h>
+#include <linux/mutex.h>
+#include <linux/etherdevice.h>
#include <net/mac80211.h>
/*
* Module information.
- * DRV_NAME should be set within the individual module source files.
*/
-#define DRV_VERSION "2.0.9"
+#define DRV_VERSION "2.0.14"
#define DRV_PROJECT "http://rt2x00.serialmonkey.com"
/*
#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \
printk(__kernlvl "%s -> %s: %s - " __msg, \
- DRV_NAME, __FUNCTION__, __lvl, ##__args)
+ KBUILD_MODNAME, __FUNCTION__, __lvl, ##__args)
#ifdef CONFIG_RT2X00_DEBUG
#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
*/
static inline int is_rts_frame(u16 fc)
{
- return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
- ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_RTS));
+ return (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_RTS));
}
static inline int is_cts_frame(u16 fc)
{
- return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
- ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_CTS));
+ return (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_CTS));
}
static inline int is_probe_resp(u16 fc)
{
- return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
- ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP));
+ return (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP));
+}
+
+static inline int is_beacon(u16 fc)
+{
+ return (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON));
}
/*
};
/*
- * To optimize the quality of the link we need to store
- * the quality of received frames and periodically
- * optimize the link.
+ * Antenna setup values.
*/
-struct link {
- /*
- * Link tuner counter
- * The number of times the link has been tuned
- * since the radio has been switched on.
- */
- u32 count;
+struct antenna_setup {
+ enum antenna rx;
+ enum antenna tx;
+};
+/*
+ * Quality statistics about the currently active link.
+ */
+struct link_qual {
/*
* Statistics required for Link tuning.
* For the average RSSI value we use the "Walking average" approach.
* the new values correctly allowing a effective link tuning.
*/
int avg_rssi;
- int vgc_level;
int false_cca;
/*
#define WEIGHT_RSSI 20
#define WEIGHT_RX 40
#define WEIGHT_TX 40
+};
+
+/*
+ * Antenna settings about the currently active link.
+ */
+struct link_ant {
+ /*
+ * Antenna flags
+ */
+ unsigned int flags;
+#define ANTENNA_RX_DIVERSITY 0x00000001
+#define ANTENNA_TX_DIVERSITY 0x00000002
+#define ANTENNA_MODE_SAMPLE 0x00000004
+
+ /*
+ * Currently active TX/RX antenna setup.
+ * When software diversity is used, this will indicate
+ * which antenna is actually used at this time.
+ */
+ struct antenna_setup active;
+
+ /*
+ * RSSI information for the different antenna's.
+ * These statistics are used to determine when
+ * to switch antenna when using software diversity.
+ *
+ * rssi[0] -> Antenna A RSSI
+ * rssi[1] -> Antenna B RSSI
+ */
+ int rssi_history[2];
+
+ /*
+ * Current RSSI average of the currently active antenna.
+ * Similar to the avg_rssi in the link_qual structure
+ * this value is updated by using the walking average.
+ */
+ int rssi_ant;
+};
+
+/*
+ * To optimize the quality of the link we need to store
+ * the quality of received frames and periodically
+ * optimize the link.
+ */
+struct link {
+ /*
+ * Link tuner counter
+ * The number of times the link has been tuned
+ * since the radio has been switched on.
+ */
+ u32 count;
+
+ /*
+ * Quality measurement values.
+ */
+ struct link_qual qual;
+
+ /*
+ * TX/RX antenna setup.
+ */
+ struct link_ant ant;
+
+ /*
+ * Active VGC level
+ */
+ int vgc_level;
/*
* Work structure for scheduling periodic link tuning.
};
/*
- * Clear all counters inside the link structure.
- * This can be easiest achieved by memsetting everything
- * except for the work structure at the end.
+ * Small helper macro to work with moving/walking averages.
*/
-static inline void rt2x00_clear_link(struct link *link)
-{
- memset(link, 0x00, sizeof(*link) - sizeof(link->work));
- link->rx_percentage = 50;
- link->tx_percentage = 50;
-}
+#define MOVING_AVERAGE(__avg, __val, __samples) \
+ ( (((__avg) * ((__samples) - 1)) + (__val)) / (__samples) )
/*
- * Update the rssi using the walking average approach.
+ * When we lack RSSI information return something less then -80 to
+ * tell the driver to tune the device to maximum sensitivity.
*/
-static inline void rt2x00_update_link_rssi(struct link *link, int rssi)
-{
- if (!link->avg_rssi)
- link->avg_rssi = rssi;
- else
- link->avg_rssi = ((link->avg_rssi * 7) + rssi) / 8;
-}
+#define DEFAULT_RSSI ( -128 )
/*
- * When the avg_rssi is unset or no frames have been received),
- * we need to return the default value which needs to be less
- * than -80 so the device will select the maximum sensitivity.
+ * Link quality access functions.
*/
static inline int rt2x00_get_link_rssi(struct link *link)
{
- return (link->avg_rssi && link->rx_success) ? link->avg_rssi : -128;
+ if (link->qual.avg_rssi && link->qual.rx_success)
+ return link->qual.avg_rssi;
+ return DEFAULT_RSSI;
+}
+
+static inline int rt2x00_get_link_ant_rssi(struct link *link)
+{
+ if (link->ant.rssi_ant && link->qual.rx_success)
+ return link->ant.rssi_ant;
+ return DEFAULT_RSSI;
+}
+
+static inline int rt2x00_get_link_ant_rssi_history(struct link *link,
+ enum antenna ant)
+{
+ if (link->ant.rssi_history[ant - ANTENNA_A])
+ return link->ant.rssi_history[ant - ANTENNA_A];
+ return DEFAULT_RSSI;
+}
+
+static inline int rt2x00_update_ant_rssi(struct link *link, int rssi)
+{
+ int old_rssi = link->ant.rssi_history[link->ant.active.rx - ANTENNA_A];
+ link->ant.rssi_history[link->ant.active.rx - ANTENNA_A] = rssi;
+ return old_rssi;
}
/*
* to us by the 80211 stack, and is used to request
* new beacons.
*/
- int id;
+ struct ieee80211_vif *id;
/*
* Current working type (IEEE80211_IF_TYPE_*).
- * When set to INVALID_INTERFACE, no interface is configured.
*/
int type;
-#define INVALID_INTERFACE IEEE80211_IF_TYPE_INVALID
/*
* MAC of the device.
* BBSID of the AP to associate with.
*/
u8 bssid[ETH_ALEN];
-
- /*
- * Store the packet filter mode for the current interface.
- */
- unsigned int filter;
};
static inline int is_interface_present(struct interface *intf)
const struct rf_channel *channels;
};
+/*
+ * Configuration structure wrapper around the
+ * mac80211 configuration structure.
+ * When mac80211 configures the driver, rt2x00lib
+ * can precalculate values which are equal for all
+ * rt2x00 drivers. Those values can be stored in here.
+ */
+struct rt2x00lib_conf {
+ struct ieee80211_conf *conf;
+ struct rf_channel rf;
+
+ struct antenna_setup ant;
+
+ int phymode;
+
+ int basic_rates;
+ int slot_time;
+
+ short sifs;
+ short pifs;
+ short difs;
+ short eifs;
+};
+
/*
* rt2x00lib callback functions.
*/
int (*initialize) (struct rt2x00_dev *rt2x00dev);
void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
+ /*
+ * Ring initialization handlers
+ */
+ void (*init_rxentry) (struct rt2x00_dev *rt2x00dev,
+ struct data_entry *entry);
+ void (*init_txentry) (struct rt2x00_dev *rt2x00dev,
+ struct data_entry *entry);
+
/*
* Radio control handlers.
*/
int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
enum dev_state state);
int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
- void (*link_stats) (struct rt2x00_dev *rt2x00dev);
+ void (*link_stats) (struct rt2x00_dev *rt2x00dev,
+ struct link_qual *qual);
void (*reset_tuner) (struct rt2x00_dev *rt2x00dev);
void (*link_tuner) (struct rt2x00_dev *rt2x00dev);
* TX control handlers
*/
void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev,
- struct data_desc *txd,
+ struct sk_buff *skb,
struct txdata_entry_desc *desc,
- struct ieee80211_hdr *ieee80211hdr,
- unsigned int length,
struct ieee80211_tx_control *control);
int (*write_tx_data) (struct rt2x00_dev *rt2x00dev,
struct data_ring *ring, struct sk_buff *skb,
struct ieee80211_tx_control *control);
+ int (*get_tx_data_len) (struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb);
void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev,
unsigned int queue);
*/
void (*config_mac_addr) (struct rt2x00_dev *rt2x00dev, __le32 *mac);
void (*config_bssid) (struct rt2x00_dev *rt2x00dev, __le32 *bssid);
- void (*config_packet_filter) (struct rt2x00_dev *rt2x00dev,
- const unsigned int filter);
- void (*config_type) (struct rt2x00_dev *rt2x00dev, const int type);
+ void (*config_type) (struct rt2x00_dev *rt2x00dev, const int type,
+ const int tsf_sync);
+ void (*config_preamble) (struct rt2x00_dev *rt2x00dev,
+ const int short_preamble,
+ const int ack_timeout,
+ const int ack_consume_time);
void (*config) (struct rt2x00_dev *rt2x00dev, const unsigned int flags,
- struct ieee80211_conf *conf);
+ struct rt2x00lib_conf *libconf);
#define CONFIG_UPDATE_PHYMODE ( 1 << 1 )
#define CONFIG_UPDATE_CHANNEL ( 1 << 2 )
#define CONFIG_UPDATE_TXPOWER ( 1 << 3 )
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
};
+/*
+ * rt2x00 device flags
+ */
+enum rt2x00_flags {
+ /*
+ * Device state flags
+ */
+ DEVICE_PRESENT,
+ DEVICE_REGISTERED_HW,
+ DEVICE_INITIALIZED,
+ DEVICE_STARTED,
+ DEVICE_STARTED_SUSPEND,
+ DEVICE_ENABLED_RADIO,
+ DEVICE_DISABLED_RADIO_HW,
+
+ /*
+ * Driver features
+ */
+ DRIVER_REQUIRE_FIRMWARE,
+ DRIVER_REQUIRE_BEACON_RING,
+
+ /*
+ * Driver configuration
+ */
+ CONFIG_SUPPORT_HW_BUTTON,
+ CONFIG_FRAME_TYPE,
+ CONFIG_RF_SEQUENCE,
+ CONFIG_EXTERNAL_LNA_A,
+ CONFIG_EXTERNAL_LNA_BG,
+ CONFIG_DOUBLE_ANTENNA,
+ CONFIG_DISABLE_LINK_TUNING,
+ CONFIG_SHORT_PREAMBLE,
+};
+
/*
* rt2x00 device structure.
*/
* required for deregistration of debugfs.
*/
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
- const struct rt2x00debug_intf *debugfs_intf;
+ struct rt2x00debug_intf *debugfs_intf;
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
/*
* of the device capabilities are stored.
*/
unsigned long flags;
-#define DEVICE_PRESENT 1
-#define DEVICE_REGISTERED_HW 2
-#define DEVICE_INITIALIZED 3
-#define DEVICE_STARTED 4
-#define DEVICE_ENABLED_RADIO 5
-#define DEVICE_ENABLED_RADIO_HW 6
-#define DRIVER_REQUIRE_FIRMWARE 7
-#define DRIVER_REQUIRE_BEACON_RING 8
-#define CONFIG_SUPPORT_HW_BUTTON 9
-#define CONFIG_FRAME_TYPE 10
-#define CONFIG_RF_SEQUENCE 11
-#define CONFIG_EXTERNAL_LNA_A 12
-#define CONFIG_EXTERNAL_LNA_BG 13
-#define CONFIG_DOUBLE_ANTENNA 14
-#define CONFIG_DISABLE_LINK_TUNING 15
-#define DEVICE_STARTED_SUSPEND 16
/*
* Chipset identification.
*/
struct hw_mode_spec spec;
+ /*
+ * This is the default TX/RX antenna setup as indicated
+ * by the device's EEPROM. When mac80211 sets its
+ * antenna value to 0 we should be using these values.
+ */
+ struct antenna_setup default_ant;
+
/*
* Register pointers
* csr_addr: Base register address. (PCI)
void __iomem *csr_addr;
void *csr_cache;
+ /*
+ * Mutex to protect register accesses on USB devices.
+ * There are 2 reasons this is needed, one is to ensure
+ * use of the csr_cache (for USB devices) by one thread
+ * isn't corrupted by another thread trying to access it.
+ * The other is that access to BBP and RF registers
+ * require multiple BUS transactions and if another thread
+ * attempted to access one of those registers at the same
+ * time one of the writes could silently fail.
+ */
+ struct mutex usb_cache_mutex;
+
+ /*
+ * Current packet filter configuration for the device.
+ * This contains all currently active FIF_* flags send
+ * to us by mac80211 during configure_filter().
+ */
+ unsigned int packet_filter;
+
/*
* Interface configuration.
*/
*/
u32 *rf;
+ /*
+ * USB Max frame size (for rt2500usb & rt73usb).
+ */
+ u16 usb_maxpacket;
+
/*
* Current TX power value.
*/
*/
struct work_struct beacon_work;
struct work_struct filter_work;
+ struct work_struct config_work;
/*
* Data ring arrays for RX, TX and Beacon.
* Generic RF access.
* The RF is being accessed by word index.
*/
-static inline void rt2x00_rf_read(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u32 *data)
{
*data = rt2x00dev->rf[word];
}
-static inline void rt2x00_rf_write(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u32 data)
{
rt2x00dev->rf[word] = data;
* Generic EEPROM access.
* The EEPROM is being accessed by word index.
*/
-static inline void *rt2x00_eeprom_addr(const struct rt2x00_dev *rt2x00dev,
+static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
const unsigned int word)
{
return (void *)&rt2x00dev->eeprom[word];
}
-static inline void rt2x00_eeprom_read(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u16 *data)
{
*data = le16_to_cpu(rt2x00dev->eeprom[word]);
}
-static inline void rt2x00_eeprom_write(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u16 data)
{
rt2x00dev->eeprom[word] = cpu_to_le16(data);
return (chipset->rf == chip);
}
-static inline u16 rt2x00_get_rev(const struct rt2x00_chip *chipset)
+static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset)
{
return chipset->rev;
}
-static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset, const u32 mask)
+static inline u16 rt2x00_check_rev(const struct rt2x00_chip *chipset,
+ const u32 rev)
{
- return chipset->rev & mask;
+ return (((chipset->rev & 0xffff0) == rev) &&
+ !!(chipset->rev & 0x0000f));
}
/*
* TX descriptor initializer
*/
void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
- struct data_desc *txd,
- struct ieee80211_hdr *ieee80211hdr,
- unsigned int length,
+ struct sk_buff *skb,
struct ieee80211_tx_control *control);
/*
void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_if_init_conf *conf);
int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
-int rt2x00mac_config_interface(struct ieee80211_hw *hw, int if_id,
+int rt2x00mac_config_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
struct ieee80211_if_conf *conf);
int rt2x00mac_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats);
int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw,
struct ieee80211_tx_queue_stats *stats);
+void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf,
+ u32 changes);
int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue,
const struct ieee80211_tx_queue_params *params);
projects / linux-2.6-omap-h63xx.git / blobdiff