/*
- Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
+ Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
+ Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
#include <linux/leds.h>
#include <linux/mutex.h>
#include <linux/etherdevice.h>
+#include <linux/input-polldev.h>
#include <net/mac80211.h>
/*
* Module information.
*/
-#define DRV_VERSION "2.2.3"
+#define DRV_VERSION "2.3.0"
#define DRV_PROJECT "http://rt2x00.serialmonkey.com"
/*
#define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
/*
+ * Determine the alignment requirement,
+ * to make sure the 802.11 payload is padded to a 4-byte boundrary
+ * we must determine the address of the payload and calculate the
+ * amount of bytes needed to move the data.
+ */
+#define ALIGN_SIZE(__skb, __header) \
+ ( ((unsigned long)((__skb)->data + (__header))) & 3 )
+
+/*
+ * Constants for extra TX headroom for alignment purposes.
+ */
+#define RT2X00_ALIGN_SIZE 4 /* Only whole frame needs alignment */
+#define RT2X00_L2PAD_SIZE 8 /* Both header & payload need alignment */
+
+/*
* Standard timing and size defines.
* These values should follow the ieee80211 specifications.
*/
GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
/*
+ * Structure for average calculation
+ * The avg field contains the actual average value,
+ * but avg_weight is internally used during calculations
+ * to prevent rounding errors.
+ */
+struct avg_val {
+ int avg;
+ int avg_weight;
+};
+
+enum rt2x00_chip_intf {
+ RT2X00_CHIP_INTF_PCI,
+ RT2X00_CHIP_INTF_USB,
+};
+
+/*
* Chipset identification
* The chipset on the device is composed of a RT and RF chip.
* The chipset combination is important for determining device capabilities.
#define RT2561 0x0302
#define RT2661 0x0401
#define RT2571 0x1300
+#define RT2860 0x0601 /* 2.4GHz PCI/CB */
+#define RT2860D 0x0681 /* 2.4GHz, 5GHz PCI/CB */
+#define RT2890 0x0701 /* 2.4GHz PCIe */
+#define RT2890D 0x0781 /* 2.4GHz, 5GHz PCIe */
+#define RT2880 0x2880 /* WSOC */
+#define RT3052 0x3052 /* WSOC */
+#define RT3090 0x3090 /* 2.4GHz PCIe */
+#define RT2870 0x1600
+#define RT3070 0x1800
u16 rf;
u32 rev;
+
+ enum rt2x00_chip_intf intf;
};
/*
*/
struct link_qual {
/*
- * Statistics required for Link tuning.
- * For the average RSSI value we use the "Walking average" approach.
- * When adding RSSI to the average value the following calculation
- * is needed:
- *
- * avg_rssi = ((avg_rssi * 7) + rssi) / 8;
- *
- * The advantage of this approach is that we only need 1 variable
- * to store the average in (No need for a count and a total).
- * But more importantly, normal average values will over time
- * move less and less towards newly added values this results
- * that with link tuning, the device can have a very good RSSI
- * for a few minutes but when the device is moved away from the AP
- * the average will not decrease fast enough to compensate.
- * The walking average compensates this and will move towards
- * the new values correctly allowing a effective link tuning.
- */
- int avg_rssi;
+ * Statistics required for Link tuning by driver
+ * The rssi value is provided by rt2x00lib during the
+ * link_tuner() callback function.
+ * The false_cca field is filled during the link_stats()
+ * callback function and could be used during the
+ * link_tuner() callback function.
+ */
+ int rssi;
int false_cca;
/*
- * Statistics required for Signal quality calculation.
- * For calculating the Signal quality we have to determine
- * the total number of success and failed RX and TX frames.
- * After that we also use the average RSSI value to help
- * determining the signal quality.
- * For the calculation we will use the following algorithm:
- *
- * rssi_percentage = (avg_rssi * 100) / rssi_offset
- * rx_percentage = (rx_success * 100) / rx_total
- * tx_percentage = (tx_success * 100) / tx_total
- * avg_signal = ((WEIGHT_RSSI * avg_rssi) +
- * (WEIGHT_TX * tx_percentage) +
- * (WEIGHT_RX * rx_percentage)) / 100
+ * VGC levels
+ * Hardware driver will tune the VGC level during each call
+ * to the link_tuner() callback function. This vgc_level is
+ * is determined based on the link quality statistics like
+ * average RSSI and the false CCA count.
*
- * This value should then be checked to not be greated then 100.
+ * In some cases the drivers need to differentiate between
+ * the currently "desired" VGC level and the level configured
+ * in the hardware. The latter is important to reduce the
+ * number of BBP register reads to reduce register access
+ * overhead. For this reason we store both values here.
+ */
+ u8 vgc_level;
+ u8 vgc_level_reg;
+
+ /*
+ * Statistics required for Signal quality calculation.
+ * These fields might be changed during the link_stats()
+ * callback function.
*/
- int rx_percentage;
int rx_success;
int rx_failed;
- int tx_percentage;
int tx_success;
int tx_failed;
-#define WEIGHT_RSSI 20
-#define WEIGHT_RX 40
-#define WEIGHT_TX 40
};
/*
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
+ * RSSI history information for the antenna.
+ * Used to determine when to switch antenna
+ * when using software diversity.
*/
- int rssi_history[2];
+ int rssi_history;
/*
* 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;
+ struct avg_val rssi_ant;
};
/*
struct link_ant ant;
/*
- * Active VGC level
+ * Currently active average RSSI value
*/
- int vgc_level;
+ struct avg_val avg_rssi;
/*
* Work structure for scheduling periodic link tuning.
};
/*
- * Small helper macro to work with moving/walking averages.
- */
-#define MOVING_AVERAGE(__avg, __val, __samples) \
- ( (((__avg) * ((__samples) - 1)) + (__val)) / (__samples) )
-
-/*
- * When we lack RSSI information return something less then -80 to
- * tell the driver to tune the device to maximum sensitivity.
- */
-#define DEFAULT_RSSI ( -128 )
-
-/*
- * Link quality access functions.
- */
-static inline int rt2x00_get_link_rssi(struct link *link)
-{
- 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 void rt2x00_reset_link_ant_rssi(struct link *link)
-{
- link->ant.rssi_ant = 0;
-}
-
-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;
-}
-
-/*
* Interface structure
* Per interface configuration details, this structure
* is allocated as the private data for ieee80211_vif.
u8 bssid[ETH_ALEN];
/*
+ * beacon->skb must be protected with the mutex.
+ */
+ struct mutex beacon_skb_mutex;
+
+ /*
* Entry in the beacon queue which belongs to
* this interface. Each interface has its own
* dedicated beacon entry.
*/
unsigned int delayed_flags;
#define DELAYED_UPDATE_BEACON 0x00000001
-#define DELAYED_CONFIG_ERP 0x00000002
-#define DELAYED_LED_ASSOC 0x00000004
/*
* Software sequence counter, this is only required
* for @tx_power_a, @tx_power_bg and @channels.
* @channels: Device/chipset specific channel values (See &struct rf_channel).
* @channels_info: Additional information for channels (See &struct channel_info).
+ * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
*/
struct hw_mode_spec {
unsigned int supported_bands;
unsigned int num_channels;
const struct rf_channel *channels;
const struct channel_info *channels_info;
+
+ struct ieee80211_sta_ht_cap ht;
};
/*
int short_preamble;
int cts_protection;
- int ack_timeout;
- int ack_consume_time;
-
- u64 basic_rates;
+ u32 basic_rates;
int slot_time;
short pifs;
short difs;
short eifs;
+
+ u16 beacon_int;
};
/*
*/
int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
- u16 (*get_firmware_crc) (const void *data, const size_t len);
- int (*load_firmware) (struct rt2x00_dev *rt2x00dev, const void *data,
- const size_t len);
+ int (*check_firmware) (struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len);
+ int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len);
/*
* Device initialization/deinitialization handlers.
int (*rfkill_poll) (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);
+ void (*reset_tuner) (struct rt2x00_dev *rt2x00dev,
+ struct link_qual *qual);
+ void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
+ struct link_qual *qual, const u32 count);
/*
* TX control handlers
int (*get_tx_data_len) (struct queue_entry *entry);
void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev,
const enum data_queue_qid queue);
+ void (*kill_tx_queue) (struct rt2x00_dev *rt2x00dev,
+ const enum data_queue_qid queue);
/*
* RX control handlers
const unsigned int eeprom_size;
const unsigned int rf_size;
const unsigned int tx_queues;
+ const unsigned int extra_tx_headroom;
const struct data_queue_desc *rx;
const struct data_queue_desc *tx;
const struct data_queue_desc *bcn;
DEVICE_STATE_REGISTERED_HW,
DEVICE_STATE_INITIALIZED,
DEVICE_STATE_STARTED,
- DEVICE_STATE_STARTED_SUSPEND,
DEVICE_STATE_ENABLED_RADIO,
- DEVICE_STATE_DISABLED_RADIO_HW,
/*
* Driver requirements
DRIVER_REQUIRE_FIRMWARE,
DRIVER_REQUIRE_BEACON_GUARD,
DRIVER_REQUIRE_ATIM_QUEUE,
- DRIVER_REQUIRE_SCHEDULED,
DRIVER_REQUIRE_DMA,
+ DRIVER_REQUIRE_COPY_IV,
+ DRIVER_REQUIRE_L2PAD,
/*
* Driver features
*/
CONFIG_SUPPORT_HW_BUTTON,
CONFIG_SUPPORT_HW_CRYPTO,
+ DRIVER_SUPPORT_CONTROL_FILTERS,
+ DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL,
/*
* Driver configuration
CONFIG_EXTERNAL_LNA_BG,
CONFIG_DOUBLE_ANTENNA,
CONFIG_DISABLE_LINK_TUNING,
- CONFIG_CRYPTO_COPY_IV,
+ CONFIG_CHANNEL_HT40,
};
/*
* The structure stored in here depends on the
* system bus (PCI or USB).
* When accessing this variable, the rt2x00dev_{pci,usb}
- * macro's should be used for correct typecasting.
+ * macros should be used for correct typecasting.
*/
struct device *dev;
enum ieee80211_band curr_band;
/*
- * rfkill structure for RF state switching support.
- * This will only be compiled in when required.
- */
-#ifdef CONFIG_RT2X00_LIB_RFKILL
- unsigned long rfkill_state;
-#define RFKILL_STATE_ALLOCATED 1
-#define RFKILL_STATE_REGISTERED 2
- struct rfkill *rfkill;
- struct delayed_work rfkill_work;
-#endif /* CONFIG_RT2X00_LIB_RFKILL */
-
- /*
* If enabled, the debugfs interface structures
* required for deregistration of debugfs.
*/
unsigned long flags;
/*
+ * Device information, Bus IRQ and name (PCI, SoC)
+ */
+ int irq;
+ const char *name;
+
+ /*
* Chipset identification.
*/
struct rt2x00_chip chip;
u8 freq_offset;
/*
+ * Calibration information (for rt2800usb & rt2800pci).
+ * [0] -> BW20
+ * [1] -> BW40
+ */
+ u8 calibration[2];
+
+ /*
+ * Beacon interval.
+ */
+ u16 beacon_int;
+
+ /*
* Low level statistics which will have
* to be kept up to date while device is running.
*/
* due to RTNL locking requirements.
*/
struct work_struct intf_work;
- struct work_struct filter_work;
/*
* Data queue arrays for RX, TX and Beacon.
* Firmware image.
*/
const struct firmware *fw;
+
+ /*
+ * Driver specific data.
+ */
+ void *priv;
};
/*
+ * Register defines.
+ * Some registers require multiple attempts before success,
+ * in those cases REGISTER_BUSY_COUNT attempts should be
+ * taken with a REGISTER_BUSY_DELAY interval.
+ */
+#define REGISTER_BUSY_COUNT 5
+#define REGISTER_BUSY_DELAY 100
+
+/*
* Generic RF access.
* The RF is being accessed by word index.
*/
static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u32 *data)
{
- *data = rt2x00dev->rf[word];
+ BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
+ *data = rt2x00dev->rf[word - 1];
}
static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u32 data)
{
- rt2x00dev->rf[word] = data;
+ BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
+ rt2x00dev->rf[word - 1] = data;
}
/*
static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
const u16 rt, const u16 rf, const u32 rev)
{
- INFO(rt2x00dev,
- "Chipset detected - rt: %04x, rf: %04x, rev: %08x.\n",
- rt, rf, rev);
-
rt2x00dev->chip.rt = rt;
rt2x00dev->chip.rf = rf;
rt2x00dev->chip.rev = rev;
}
+static inline void rt2x00_set_chip_rt(struct rt2x00_dev *rt2x00dev,
+ const u16 rt)
+{
+ rt2x00dev->chip.rt = rt;
+}
+
+static inline void rt2x00_set_chip_rf(struct rt2x00_dev *rt2x00dev,
+ const u16 rf, const u32 rev)
+{
+ rt2x00_set_chip(rt2x00dev, rt2x00dev->chip.rt, rf, rev);
+}
+
+static inline void rt2x00_print_chip(struct rt2x00_dev *rt2x00dev)
+{
+ INFO(rt2x00dev,
+ "Chipset detected - rt: %04x, rf: %04x, rev: %08x.\n",
+ rt2x00dev->chip.rt, rt2x00dev->chip.rf, rt2x00dev->chip.rev);
+}
+
static inline char rt2x00_rt(const struct rt2x00_chip *chipset, const u16 chip)
{
return (chipset->rt == chip);
return (chipset->rf == chip);
}
-static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset)
+static inline u32 rt2x00_rev(const struct rt2x00_chip *chipset)
{
return chipset->rev;
}
-static inline u16 rt2x00_check_rev(const struct rt2x00_chip *chipset,
- const u32 rev)
+static inline bool rt2x00_check_rev(const struct rt2x00_chip *chipset,
+ const u32 mask, const u32 rev)
+{
+ return ((chipset->rev & mask) == rev);
+}
+
+static inline void rt2x00_set_chip_intf(struct rt2x00_dev *rt2x00dev,
+ enum rt2x00_chip_intf intf)
+{
+ rt2x00dev->chip.intf = intf;
+}
+
+static inline bool rt2x00_intf(const struct rt2x00_chip *chipset,
+ enum rt2x00_chip_intf intf)
+{
+ return (chipset->intf == intf);
+}
+
+static inline bool rt2x00_intf_is_pci(struct rt2x00_dev *rt2x00dev)
+{
+ return rt2x00_intf(&rt2x00dev->chip, RT2X00_CHIP_INTF_PCI);
+}
+
+static inline bool rt2x00_intf_is_usb(struct rt2x00_dev *rt2x00dev)
{
- return (((chipset->rev & 0xffff0) == rev) &&
- !!(chipset->rev & 0x0000f));
+ return rt2x00_intf(&rt2x00dev->chip, RT2X00_CHIP_INTF_USB);
}
/**
void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_if_init_conf *conf);
int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
-int rt2x00mac_config_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_if_conf *conf);
void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
- int mc_count, struct dev_addr_list *mc_list);
+ u64 multicast);
+int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
+ bool set);
#ifdef CONFIG_RT2X00_LIB_CRYPTO
int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- const u8 *local_address, const u8 *address,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key);
#else
#define rt2x00mac_set_key NULL
u32 changes);
int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params);
+void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
/*
* Driver allocation handlers.
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff