[RT2x00]: add driver for Ralink wireless hardware
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
new file mode 100644
index 0000000..80b079d
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -0,0 +1,807 @@
+/*
+ Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+ <http://rt2x00.serialmonkey.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the
+ Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ Module: rt2x00
+ Abstract: rt2x00 global information.
+ */
+
+#ifndef RT2X00_H
+#define RT2X00_H
+
+#include <linux/bitops.h>
+#include <linux/prefetch.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/firmware.h>
+
+#include <net/mac80211.h>
+
+#include "rt2x00debug.h"
+#include "rt2x00reg.h"
+#include "rt2x00ring.h"
+
+/*
+ * Module information.
+ * DRV_NAME should be set within the individual module source files.
+ */
+#define DRV_VERSION "2.0.8"
+#define DRV_PROJECT "http://rt2x00.serialmonkey.com"
+
+/*
+ * Debug definitions.
+ * Debug output has to be enabled during compile time.
+ */
+#define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \
+ printk(__kernlvl "%s -> %s: %s - " __msg, \
+ wiphy_name((__dev)->hw->wiphy), __FUNCTION__, __lvl, ##__args)
+
+#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \
+ printk(__kernlvl "%s -> %s: %s - " __msg, \
+ DRV_NAME, __FUNCTION__, __lvl, ##__args)
+
+#ifdef CONFIG_RT2X00_DEBUG
+#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
+ DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args);
+#else
+#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
+ do { } while (0)
+#endif /* CONFIG_RT2X00_DEBUG */
+
+/*
+ * Various debug levels.
+ * The debug levels PANIC and ERROR both indicate serious problems,
+ * for this reason they should never be ignored.
+ * The special ERROR_PROBE message is for messages that are generated
+ * when the rt2x00_dev is not yet initialized.
+ */
+#define PANIC(__dev, __msg, __args...) \
+ DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
+#define ERROR(__dev, __msg, __args...) \
+ DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
+#define ERROR_PROBE(__msg, __args...) \
+ DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
+#define WARNING(__dev, __msg, __args...) \
+ DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
+#define NOTICE(__dev, __msg, __args...) \
+ DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
+#define INFO(__dev, __msg, __args...) \
+ DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
+#define DEBUG(__dev, __msg, __args...) \
+ DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
+#define EEPROM(__dev, __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 ACK_SIZE 14
+#define IEEE80211_HEADER 24
+#define PLCP 48
+#define BEACON 100
+#define PREAMBLE 144
+#define SHORT_PREAMBLE 72
+#define SLOT_TIME 20
+#define SHORT_SLOT_TIME 9
+#define SIFS 10
+#define PIFS ( SIFS + SLOT_TIME )
+#define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
+#define DIFS ( PIFS + SLOT_TIME )
+#define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
+#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.
+ */
+struct rt2x00_chip {
+ u16 rt;
+#define RT2460 0x0101
+#define RT2560 0x0201
+#define RT2570 0x1201
+#define RT2561 0x0301
+#define RT2561s 0x0302
+#define RT2661 0x0401
+#define RT2571 0x1300
+
+ u16 rf;
+ u32 rev;
+};
+
+/*
+ * RF register values that belong to a particular channel.
+ */
+struct rf_channel {
+ int channel;
+ u32 rf1;
+ u32 rf2;
+ u32 rf3;
+ u32 rf4;
+};
+
+/*
+ * 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;
+
+ /*
+ * 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;
+ int vgc_level;
+ 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
+ *
+ * This value should then be checked to not be greated then 100.
+ */
+ 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
+
+ /*
+ * Work structure for scheduling periodic link tuning.
+ */
+ struct delayed_work work;
+};
+
+/*
+ * Clear all counters inside the link structure.
+ * This can be easiest achieved by memsetting everything
+ * except for the work structure at the end.
+ */
+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;
+}
+
+/*
+ * Update the rssi using the walking average approach.
+ */
+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;
+}
+
+/*
+ * 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.
+ */
+static inline int rt2x00_get_link_rssi(struct link *link)
+{
+ return (link->avg_rssi && link->rx_success) ? link->avg_rssi : -128;
+}
+
+/*
+ * Interface structure
+ * Configuration details about the current interface.
+ */
+struct interface {
+ /*
+ * Interface identification. The value is assigned
+ * to us by the 80211 stack, and is used to request
+ * new beacons.
+ */
+ int id;
+
+ /*
+ * Current working type (IEEE80211_IF_TYPE_*).
+ * This excludes the type IEEE80211_IF_TYPE_MNTR
+ * since that is counted seperately in the monitor_count
+ * field.
+ * When set to INVALID_INTERFACE, no interface is configured.
+ */
+ int type;
+#define INVALID_INTERFACE IEEE80211_IF_TYPE_MGMT
+
+ /*
+ * MAC of the device.
+ */
+ u8 mac[ETH_ALEN];
+
+ /*
+ * BBSID of the AP to associate with.
+ */
+ u8 bssid[ETH_ALEN];
+
+ /*
+ * Store the packet filter mode for the current interface.
+ * monitor mode always disabled filtering. But in such
+ * cases we still need to store the value here in case
+ * the monitor mode interfaces are removed, while a
+ * non-monitor mode interface remains.
+ */
+ unsigned short filter;
+
+ /*
+ * Monitor mode count, the number of interfaces
+ * in monitor mode that that have been added.
+ */
+ unsigned short monitor_count;
+};
+
+static inline int is_interface_present(struct interface *intf)
+{
+ return !!intf->id;
+}
+
+static inline int is_monitor_present(struct interface *intf)
+{
+ return !!intf->monitor_count;
+}
+
+/*
+ * 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.
+ */
+struct hw_mode_spec {
+ /*
+ * Number of modes, rates and channels.
+ */
+ int num_modes;
+ int num_rates;
+ int num_channels;
+
+ /*
+ * txpower values.
+ */
+ const u8 *tx_power_a;
+ const u8 *tx_power_bg;
+ u8 tx_power_default;
+
+ /*
+ * Device/chipset specific value.
+ */
+ const struct rf_channel *channels;
+};
+
+/*
+ * rt2x00lib callback functions.
+ */
+struct rt2x00lib_ops {
+ /*
+ * Interrupt handlers.
+ */
+ irq_handler_t irq_handler;
+
+ /*
+ * Device init handlers.
+ */
+ int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
+ char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
+ int (*load_firmware) (struct rt2x00_dev *rt2x00dev, void *data,
+ const size_t len);
+
+ /*
+ * Device initialization/deinitialization handlers.
+ */
+ int (*initialize) (struct rt2x00_dev *rt2x00dev);
+ void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
+
+ /*
+ * 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 (*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 data_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);
+ void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev,
+ unsigned int queue);
+
+ /*
+ * RX control handlers
+ */
+ int (*fill_rxdone) (struct data_entry *entry,
+ int *signal, int *rssi, int *ofdm, int *size);
+
+ /*
+ * Configuration handlers.
+ */
+ void (*config_mac_addr) (struct rt2x00_dev *rt2x00dev, u8 *mac);
+ void (*config_bssid) (struct rt2x00_dev *rt2x00dev, u8 *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) (struct rt2x00_dev *rt2x00dev, const unsigned int flags,
+ struct ieee80211_conf *conf);
+#define CONFIG_UPDATE_PHYMODE ( 1 << 1 )
+#define CONFIG_UPDATE_CHANNEL ( 1 << 2 )
+#define CONFIG_UPDATE_TXPOWER ( 1 << 3 )
+#define CONFIG_UPDATE_ANTENNA ( 1 << 4 )
+#define CONFIG_UPDATE_SLOT_TIME ( 1 << 5 )
+#define CONFIG_UPDATE_BEACON_INT ( 1 << 6 )
+#define CONFIG_UPDATE_ALL 0xffff
+};
+
+/*
+ * rt2x00 driver callback operation structure.
+ */
+struct rt2x00_ops {
+ const char *name;
+ const unsigned int rxd_size;
+ const unsigned int txd_size;
+ const unsigned int eeprom_size;
+ const unsigned int rf_size;
+ const struct rt2x00lib_ops *lib;
+ const struct ieee80211_ops *hw;
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+ const struct rt2x00debug *debugfs;
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * rt2x00 device structure.
+ */
+struct rt2x00_dev {
+ /*
+ * Device structure.
+ * 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.
+ */
+ void *dev;
+#define rt2x00dev_pci(__dev) ( (struct pci_dev*)(__dev)->dev )
+#define rt2x00dev_usb(__dev) ( (struct usb_interface*)(__dev)->dev )
+
+ /*
+ * Callback functions.
+ */
+ const struct rt2x00_ops *ops;
+
+ /*
+ * 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
+
+ /*
+ * rfkill structure for RF state switching support.
+ * This will only be compiled in when required.
+ */
+#ifdef CONFIG_RT2X00_LIB_RFKILL
+ struct rfkill *rfkill;
+ struct input_polled_dev *poll_dev;
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
+
+ /*
+ * If enabled, the debugfs interface structures
+ * required for deregistration of debugfs.
+ */
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+ const struct rt2x00debug_intf *debugfs_intf;
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+ /*
+ * Device flags.
+ * In these flags the current status and some
+ * of the device capabilities are stored.
+ */
+ unsigned long flags;
+#define DEVICE_ENABLED_RADIO 1
+#define DEVICE_ENABLED_RADIO_HW 2
+#define DEVICE_INITIALIZED 3
+#define DEVICE_INITIALIZED_HW 4
+#define REQUIRE_FIRMWARE 5
+#define PACKET_FILTER_SCHEDULED 6
+#define PACKET_FILTER_PENDING 7
+#define INTERFACE_RESUME 8
+#define INTERFACE_ENABLED 9
+#define INTERFACE_ENABLED_MONITOR 10
+#define REQUIRE_BEACON_RING 11
+#define DEVICE_SUPPORT_HW_BUTTON 12
+#define CONFIG_FRAME_TYPE 13
+#define CONFIG_RF_SEQUENCE 14
+/* Hole: Add new Flag here */
+#define CONFIG_EXTERNAL_LNA_A 16
+#define CONFIG_EXTERNAL_LNA_BG 17
+#define CONFIG_DOUBLE_ANTENNA 18
+#define CONFIG_DISABLE_LINK_TUNING 19
+
+ /*
+ * Chipset identification.
+ */
+ struct rt2x00_chip chip;
+
+ /*
+ * hw capability specifications.
+ */
+ struct hw_mode_spec spec;
+
+ /*
+ * Register pointers
+ * csr_addr: Base register address. (PCI)
+ * csr_cache: CSR cache for usb_control_msg. (USB)
+ */
+ void __iomem *csr_addr;
+ void *csr_cache;
+
+ /*
+ * Interface configuration.
+ */
+ struct interface interface;
+
+ /*
+ * Link quality
+ */
+ struct link link;
+
+ /*
+ * EEPROM data.
+ */
+ __le16 *eeprom;
+
+ /*
+ * Active RF register values.
+ * These are stored here so we don't need
+ * to read the rf registers and can directly
+ * use this value instead.
+ * This field should be accessed by using
+ * rt2x00_rf_read() and rt2x00_rf_write().
+ */
+ u32 *rf;
+
+ /*
+ * Current TX power value.
+ */
+ u16 tx_power;
+
+ /*
+ * LED register (for rt61pci & rt73usb).
+ */
+ u16 led_reg;
+
+ /*
+ * Led mode (LED_MODE_*)
+ */
+ u8 led_mode;
+
+ /*
+ * Rssi <-> Dbm offset
+ */
+ u8 rssi_offset;
+
+ /*
+ * Frequency offset (for rt61pci & rt73usb).
+ */
+ u8 freq_offset;
+
+ /*
+ * Low level statistics which will have
+ * to be kept up to date while device is running.
+ */
+ struct ieee80211_low_level_stats low_level_stats;
+
+ /*
+ * RX configuration information.
+ */
+ struct ieee80211_rx_status rx_status;
+
+ /*
+ * Beacon scheduled work.
+ */
+ struct work_struct beacon_work;
+
+ /*
+ * Data ring arrays for RX, TX and Beacon.
+ * The Beacon array also contains the Atim ring
+ * if that is supported by the device.
+ */
+ int data_rings;
+ struct data_ring *rx;
+ struct data_ring *tx;
+ struct data_ring *bcn;
+
+ /*
+ * Firmware image.
+ */
+ const struct firmware *fw;
+};
+
+/*
+ * 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,
+ const unsigned int word, u32 *data)
+{
+ *data = rt2x00dev->rf[word];
+}
+
+static inline void rt2x00_rf_write(const 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,
+ const unsigned int word)
+{
+ return (void *)&rt2x00dev->eeprom[word];
+}
+
+static inline void rt2x00_eeprom_read(const 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,
+ const unsigned int word, u16 data)
+{
+ rt2x00dev->eeprom[word] = cpu_to_le16(data);
+}
+
+/*
+ * Chipset handlers
+ */
+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 char rt2x00_rt(const struct rt2x00_chip *chipset, const u16 chip)
+{
+ return (chipset->rt == chip);
+}
+
+static inline char rt2x00_rf(const struct rt2x00_chip *chipset, const u16 chip)
+{
+ return (chipset->rf == chip);
+}
+
+static inline u16 rt2x00_get_rev(const struct rt2x00_chip *chipset)
+{
+ return chipset->rev;
+}
+
+static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset, const u32 mask)
+{
+ return chipset->rev & mask;
+}
+
+/*
+ * Duration calculations
+ * The rate variable passed is: 100kbs.
+ * To convert from bytes to bits we multiply size with 8,
+ * then the size is multiplied with 10 to make the
+ * real rate -> rate argument correction.
+ */
+static inline u16 get_duration(const unsigned int size, const u8 rate)
+{
+ return ((size * 8 * 10) / rate);
+}
+
+static inline u16 get_duration_res(const unsigned int size, const u8 rate)
+{
+ return ((size * 8 * 10) % rate);
+}
+
+/*
+ * Library functions.
+ */
+struct data_ring *rt2x00lib_get_ring(struct rt2x00_dev *rt2x00dev,
+ const unsigned int queue);
+
+/*
+ * Interrupt context handlers.
+ */
+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,
+ const int signal, const int rssi, const int ofdm);
+
+/*
+ * TX descriptor initializer
+ */
+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);
+
+/*
+ * mac80211 handlers.
+ */
+int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_tx_control *control);
+int rt2x00mac_start(struct ieee80211_hw *hw);
+void rt2x00mac_stop(struct ieee80211_hw *hw);
+int rt2x00mac_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf);
+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,
+ struct ieee80211_if_conf *conf);
+void rt2x00mac_set_multicast_list(struct ieee80211_hw *hw,
+ unsigned short flags, int mc_count);
+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,
+ const struct ieee80211_tx_queue_params *params);
+
+/*
+ * Driver allocation handlers.
+ */
+int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
+#ifdef CONFIG_PM
+int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
+int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
+#endif /* CONFIG_PM */
+
+#endif /* RT2X00_H */