/*
- Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+ Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
#define RT2X00_H
#include <linux/bitops.h>
-#include <linux/prefetch.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/firmware.h>
+#include <linux/leds.h>
+#include <linux/mutex.h>
+#include <linux/etherdevice.h>
#include <net/mac80211.h>
#include "rt2x00debug.h"
+#include "rt2x00leds.h"
#include "rt2x00reg.h"
-#include "rt2x00ring.h"
+#include "rt2x00queue.h"
/*
* Module information.
- * DRV_NAME should be set within the individual module source files.
*/
-#define DRV_VERSION "2.0.9"
+#define DRV_VERSION "2.1.7"
#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...) \
DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)
/*
- * Ring sizes.
- * Ralink PCI devices demand the Frame size to be a multiple of 128 bytes.
- * DATA_FRAME_SIZE is used for TX, RX, ATIM and PRIO rings.
- * MGMT_FRAME_SIZE is used for the BEACON ring.
- */
-#define DATA_FRAME_SIZE 2432
-#define MGMT_FRAME_SIZE 256
-
-/*
- * Number of entries in a packet ring.
- * PCI devices only need 1 Beacon entry,
- * but USB devices require a second because they
- * have to send a Guardian byte first.
- */
-#define RX_ENTRIES 12
-#define TX_ENTRIES 12
-#define ATIM_ENTRIES 1
-#define BEACON_ENTRIES 2
-
-/*
* Standard timing and size defines.
* These values should follow the ieee80211 specifications.
*/
#define EIFS ( SIFS + (8 * (IEEE80211_HEADER + ACK_SIZE)) )
/*
- * IEEE802.11 header defines
- */
-static inline int is_rts_frame(u16 fc)
-{
- 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));
-}
-
-static inline int is_probe_resp(u16 fc)
-{
- return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
- ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP));
-}
-
-/*
* Chipset identification
* The chipset on the device is composed of a RT and RF chip.
* The chipset combination is important for determining device capabilities.
};
/*
- * 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 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
- * Configuration details about the current interface.
+ * Per interface configuration details, this structure
+ * is allocated as the private data for ieee80211_vif.
*/
-struct interface {
+struct rt2x00_intf {
/*
- * Interface identification. The value is assigned
- * to us by the 80211 stack, and is used to request
- * new beacons.
+ * All fields within the rt2x00_intf structure
+ * must be protected with a spinlock.
*/
- int id;
+ spinlock_t lock;
/*
- * Current working type (IEEE80211_IF_TYPE_*).
- * When set to INVALID_INTERFACE, no interface is configured.
+ * BSS configuration. Copied from the structure
+ * passed to us through the bss_info_changed()
+ * callback funtion.
*/
- int type;
-#define INVALID_INTERFACE IEEE80211_IF_TYPE_INVALID
+ struct ieee80211_bss_conf conf;
/*
* MAC of the device.
u8 bssid[ETH_ALEN];
/*
- * Store the packet filter mode for the current interface.
+ * Entry in the beacon queue which belongs to
+ * this interface. Each interface has its own
+ * dedicated beacon entry.
*/
- unsigned int filter;
-};
+ struct queue_entry *beacon;
-static inline int is_interface_present(struct interface *intf)
-{
- return !!intf->id;
-}
+ /*
+ * Actions that needed rescheduling.
+ */
+ unsigned int delayed_flags;
+#define DELAYED_UPDATE_BEACON 0x00000001
+#define DELAYED_CONFIG_ERP 0x00000002
+#define DELAYED_LED_ASSOC 0x00000004
+};
-static inline int is_interface_type(struct interface *intf, int type)
+static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
{
- return intf->type == type;
+ return (struct rt2x00_intf *)vif->drv_priv;
}
-/*
+/**
+ * struct hw_mode_spec: Hardware specifications structure
+ *
* Details about the supported modes, rates and channels
* of a particular chipset. This is used by rt2x00lib
* to build the ieee80211_hw_mode array for mac80211.
+ *
+ * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
+ * @supported_rates: Rate types which are supported (CCK, OFDM).
+ * @num_channels: Number of supported channels. This is used as array size
+ * for @tx_power_a, @tx_power_bg and @channels.
+ * @channels: Device/chipset specific channel values (See &struct rf_channel).
+ * @tx_power_a: TX power values for all 5.2GHz channels (may be NULL).
+ * @tx_power_bg: TX power values for all 2.4GHz channels (may be NULL).
+ * @tx_power_default: Default TX power value to use when either
+ * @tx_power_a or @tx_power_bg is missing.
*/
struct hw_mode_spec {
+ unsigned int supported_bands;
+#define SUPPORT_BAND_2GHZ 0x00000001
+#define SUPPORT_BAND_5GHZ 0x00000002
+
+ unsigned int supported_rates;
+#define SUPPORT_RATE_CCK 0x00000001
+#define SUPPORT_RATE_OFDM 0x00000002
+
+ unsigned int num_channels;
+ const struct rf_channel *channels;
+
+ const u8 *tx_power_a;
+ const u8 *tx_power_bg;
+ u8 tx_power_default;
+};
+
+/*
+ * 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;
+
+ enum ieee80211_band band;
+
+ u32 basic_rates;
+ u32 slot_time;
+
+ short sifs;
+ short pifs;
+ short difs;
+ short eifs;
+};
+
+/*
+ * Configuration structure for erp settings.
+ */
+struct rt2x00lib_erp {
+ int short_preamble;
+
+ int ack_timeout;
+ int ack_consume_time;
+};
+
+/*
+ * Configuration structure wrapper around the
+ * rt2x00 interface configuration handler.
+ */
+struct rt2x00intf_conf {
/*
- * Number of modes, rates and channels.
+ * Interface type
*/
- int num_modes;
- int num_rates;
- int num_channels;
+ enum ieee80211_if_types type;
/*
- * txpower values.
+ * TSF sync value, this is dependant on the operation type.
*/
- const u8 *tx_power_a;
- const u8 *tx_power_bg;
- u8 tx_power_default;
+ enum tsf_sync sync;
/*
- * Device/chipset specific value.
+ * The MAC and BSSID addressess are simple array of bytes,
+ * these arrays are little endian, so when sending the addressess
+ * to the drivers, copy the it into a endian-signed variable.
+ *
+ * Note that all devices (except rt2500usb) have 32 bits
+ * register word sizes. This means that whatever variable we
+ * pass _must_ be a multiple of 32 bits. Otherwise the device
+ * might not accept what we are sending to it.
+ * This will also make it easier for the driver to write
+ * the data to the device.
*/
- const struct rf_channel *channels;
+ __le32 mac[2];
+ __le32 bssid[2];
};
/*
*/
int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
+ u16 (*get_firmware_crc) (void *data, const size_t len);
int (*load_firmware) (struct rt2x00_dev *rt2x00dev, void *data,
const size_t len);
void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
/*
+ * queue initialization handlers
+ */
+ void (*init_rxentry) (struct rt2x00_dev *rt2x00dev,
+ struct queue_entry *entry);
+ void (*init_txentry) (struct rt2x00_dev *rt2x00dev,
+ struct queue_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 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);
+ struct sk_buff *skb,
+ struct txentry_desc *txdesc);
+ int (*write_tx_data) (struct queue_entry *entry);
+ int (*get_tx_data_len) (struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb);
void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev,
- unsigned int queue);
+ const enum data_queue_qid queue);
/*
* RX control handlers
*/
- void (*fill_rxdone) (struct data_entry *entry,
- struct rxdata_entry_desc *desc);
+ void (*fill_rxdone) (struct queue_entry *entry,
+ struct rxdone_entry_desc *rxdesc);
/*
* Configuration handlers.
*/
- void (*config_mac_addr) (struct rt2x00_dev *rt2x00dev, __le32 *mac);
- void (*config_bssid) (struct rt2x00_dev *rt2x00dev, __le32 *bssid);
- void (*config_type) (struct rt2x00_dev *rt2x00dev, const int type);
- void (*config) (struct rt2x00_dev *rt2x00dev, const unsigned int flags,
- struct ieee80211_conf *conf);
+ void (*config_filter) (struct rt2x00_dev *rt2x00dev,
+ const unsigned int filter_flags);
+ void (*config_intf) (struct rt2x00_dev *rt2x00dev,
+ struct rt2x00_intf *intf,
+ struct rt2x00intf_conf *conf,
+ const unsigned int flags);
+#define CONFIG_UPDATE_TYPE ( 1 << 1 )
+#define CONFIG_UPDATE_MAC ( 1 << 2 )
+#define CONFIG_UPDATE_BSSID ( 1 << 3 )
+
+ void (*config_erp) (struct rt2x00_dev *rt2x00dev,
+ struct rt2x00lib_erp *erp);
+ void (*config) (struct rt2x00_dev *rt2x00dev,
+ struct rt2x00lib_conf *libconf,
+ const unsigned int flags);
#define CONFIG_UPDATE_PHYMODE ( 1 << 1 )
#define CONFIG_UPDATE_CHANNEL ( 1 << 2 )
#define CONFIG_UPDATE_TXPOWER ( 1 << 3 )
*/
struct rt2x00_ops {
const char *name;
- const unsigned int rxd_size;
- const unsigned int txd_size;
+ const unsigned int max_sta_intf;
+ const unsigned int max_ap_intf;
const unsigned int eeprom_size;
const unsigned int rf_size;
+ const unsigned int tx_queues;
+ const struct data_queue_desc *rx;
+ const struct data_queue_desc *tx;
+ const struct data_queue_desc *bcn;
+ const struct data_queue_desc *atim;
const struct rt2x00lib_ops *lib;
const struct ieee80211_ops *hw;
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
* Driver features
*/
DRIVER_REQUIRE_FIRMWARE,
- DRIVER_REQUIRE_BEACON_RING,
+ DRIVER_REQUIRE_BEACON_GUARD,
+ DRIVER_REQUIRE_ATIM_QUEUE,
+ DRIVER_REQUIRE_SCHEDULED,
+ DRIVER_REQUIRE_DMA,
/*
* Driver configuration
* When accessing this variable, the rt2x00dev_{pci,usb}
* macro's should be used for correct typecasting.
*/
- void *dev;
-#define rt2x00dev_pci(__dev) ( (struct pci_dev*)(__dev)->dev )
-#define rt2x00dev_usb(__dev) ( (struct usb_interface*)(__dev)->dev )
+ struct device *dev;
/*
* Callback functions.
* IEEE80211 control structure.
*/
struct ieee80211_hw *hw;
- struct ieee80211_hw_mode *hwmodes;
- unsigned int curr_hwmode;
-#define HWMODE_B 0
-#define HWMODE_G 1
-#define HWMODE_A 2
+ struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
+ 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 input_polled_dev *poll_dev;
#endif /* CONFIG_RT2X00_LIB_RFKILL */
* 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 */
/*
+ * LED structure for changing the LED status
+ * by mac8011 or the kernel.
+ */
+#ifdef CONFIG_RT2X00_LIB_LEDS
+ struct rt2x00_led led_radio;
+ struct rt2x00_led led_assoc;
+ struct rt2x00_led led_qual;
+ u16 led_mcu_reg;
+#endif /* CONFIG_RT2X00_LIB_LEDS */
+
+ /*
* Device flags.
* In these flags the current status and some
* of the device capabilities are stored.
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)
- * csr_cache: CSR cache for usb_control_msg. (USB)
+ * csr.base: CSR base register address. (PCI)
+ * csr.cache: CSR cache for usb_control_msg. (USB)
+ */
+ union csr {
+ void __iomem *base;
+ void *cache;
+ } csr;
+
+ /*
+ * 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.
*/
- void __iomem *csr_addr;
- void *csr_cache;
+ struct mutex usb_cache_mutex;
/*
- * Interface configuration.
+ * Current packet filter configuration for the device.
+ * This contains all currently active FIF_* flags send
+ * to us by mac80211 during configure_filter().
*/
- struct interface interface;
+ unsigned int packet_filter;
+
+ /*
+ * Interface details:
+ * - Open ap interface count.
+ * - Open sta interface count.
+ * - Association count.
+ */
+ unsigned int intf_ap_count;
+ unsigned int intf_sta_count;
+ unsigned int intf_associated;
/*
* Link quality
u32 *rf;
/*
- * Current TX power value.
+ * USB Max frame size (for rt2500usb & rt73usb).
*/
- u16 tx_power;
+ u16 usb_maxpacket;
/*
- * LED register (for rt61pci & rt73usb).
- */
- u16 led_reg;
-
- /*
- * Led mode (LED_MODE_*)
+ * Current TX power value.
*/
- u8 led_mode;
+ u16 tx_power;
/*
* Rssi <-> Dbm offset
/*
* Scheduled work.
*/
- struct work_struct beacon_work;
+ struct work_struct intf_work;
struct work_struct filter_work;
/*
- * Data ring arrays for RX, TX and Beacon.
- * The Beacon array also contains the Atim ring
+ * Data queue arrays for RX, TX and Beacon.
+ * The Beacon array also contains the Atim queue
* if that is supported by the device.
*/
- int data_rings;
- struct data_ring *rx;
- struct data_ring *tx;
- struct data_ring *bcn;
+ unsigned int data_queues;
+ struct data_queue *rx;
+ struct data_queue *tx;
+ struct data_queue *bcn;
/*
* Firmware image.
};
/*
- * For-each loop for the ring array.
- * All rings have been allocated as a single array,
- * this means we can create a very simply loop macro
- * that is capable of looping through all rings.
- * ring_end(), txring_end() and ring_loop() are helper macro's which
- * should not be used directly. Instead the following should be used:
- * ring_for_each() - Loops through all rings (RX, TX, Beacon & Atim)
- * txring_for_each() - Loops through TX data rings (TX only)
- * txringall_for_each() - Loops through all TX rings (TX, Beacon & Atim)
- */
-#define ring_end(__dev) \
- &(__dev)->rx[(__dev)->data_rings]
-
-#define txring_end(__dev) \
- &(__dev)->tx[(__dev)->hw->queues]
-
-#define ring_loop(__entry, __start, __end) \
- for ((__entry) = (__start); \
- prefetch(&(__entry)[1]), (__entry) != (__end); \
- (__entry) = &(__entry)[1])
-
-#define ring_for_each(__dev, __entry) \
- ring_loop(__entry, (__dev)->rx, ring_end(__dev))
-
-#define txring_for_each(__dev, __entry) \
- ring_loop(__entry, (__dev)->tx, txring_end(__dev))
-
-#define txringall_for_each(__dev, __entry) \
- ring_loop(__entry, (__dev)->tx, ring_end(__dev))
-
-/*
* 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));
}
/*
return ((size * 8 * 10) % rate);
}
-/*
- * Library functions.
+/**
+ * rt2x00queue_alloc_rxskb - allocate a skb for RX purposes.
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @queue: The queue for which the skb will be applicable.
*/
-struct data_ring *rt2x00lib_get_ring(struct rt2x00_dev *rt2x00dev,
- const unsigned int queue);
+struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev,
+ struct queue_entry *entry);
-/*
- * Interrupt context handlers.
+/**
+ * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @skb: The skb to map.
*/
-void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
-void rt2x00lib_txdone(struct data_entry *entry,
- const int status, const int retry);
-void rt2x00lib_rxdone(struct data_entry *entry, struct sk_buff *skb,
- struct rxdata_entry_desc *desc);
+void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
+
+/**
+ * rt2x00queue_unmap_skb - Unmap a skb from DMA.
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @skb: The skb to unmap.
+ */
+void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
+
+/**
+ * rt2x00queue_free_skb - free a skb
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @skb: The skb to free.
+ */
+void rt2x00queue_free_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
+
+/**
+ * rt2x00queue_create_tx_descriptor - Create TX descriptor from mac80211 input
+ * @entry: The entry which will be used to transfer the TX frame.
+ * @txdesc: rt2x00 TX descriptor which will be initialized by this function.
+ *
+ * This function will initialize the &struct txentry_desc based on information
+ * from mac80211. This descriptor can then be used by rt2x00lib and the drivers
+ * to correctly initialize the hardware descriptor.
+ * Note that before calling this function the skb->cb array must be untouched
+ * by rt2x00lib. Only after this function completes will it be save to
+ * overwrite the skb->cb information.
+ * The reason for this is that mac80211 writes its own tx information into
+ * the skb->cb array, and this function will use that information to initialize
+ * the &struct txentry_desc structure.
+ */
+void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
+ struct txentry_desc *txdesc);
+
+/**
+ * rt2x00queue_write_tx_descriptor - Write TX descriptor to hardware
+ * @entry: The entry which will be used to transfer the TX frame.
+ * @txdesc: TX descriptor which will be used to write hardware descriptor
+ *
+ * This function will write a TX descriptor initialized by
+ * &rt2x00queue_create_tx_descriptor to the hardware. After this call
+ * has completed the frame is now owned by the hardware, the hardware
+ * queue will have automatically be kicked unless this frame was generated
+ * by rt2x00lib, in which case the frame is "special" and must be kicked
+ * by the caller.
+ */
+void rt2x00queue_write_tx_descriptor(struct queue_entry *entry,
+ struct txentry_desc *txdesc);
+
+/**
+ * rt2x00queue_get_queue - Convert queue index to queue pointer
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @queue: rt2x00 queue index (see &enum data_queue_qid).
+ */
+struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev,
+ const enum data_queue_qid queue);
+
+/**
+ * rt2x00queue_get_entry - Get queue entry where the given index points to.
+ * @queue: Pointer to &struct data_queue from where we obtain the entry.
+ * @index: Index identifier for obtaining the correct index.
+ */
+struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
+ enum queue_index index);
+
+/**
+ * rt2x00queue_index_inc - Index incrementation function
+ * @queue: Queue (&struct data_queue) to perform the action on.
+ * @index: Index type (&enum queue_index) to perform the action on.
+ *
+ * This function will increase the requested index on the queue,
+ * it will grab the appropriate locks and handle queue overflow events by
+ * resetting the index to the start of the queue.
+ */
+void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index);
+
/*
- * TX descriptor initializer
+ * Interrupt context handlers.
*/
-void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
- struct data_desc *txd,
- struct ieee80211_hdr *ieee80211hdr,
- unsigned int length,
- struct ieee80211_tx_control *control);
+void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_txdone(struct queue_entry *entry,
+ struct txdone_entry_desc *txdesc);
+void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
+ struct queue_entry *entry);
/*
* mac80211 handlers.
*/
-int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control);
+int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
int rt2x00mac_start(struct ieee80211_hw *hw);
void rt2x00mac_stop(struct ieee80211_hw *hw);
int rt2x00mac_add_interface(struct ieee80211_hw *hw,
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);
+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);
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);
-int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue,
+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, u16 queue,
const struct ieee80211_tx_queue_params *params);
/*