+++ /dev/null
-/*
- Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
- <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, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- Module: rt2x00
- Abstract: rt2x00 queue datastructures and routines
- */
-
-#ifndef RT2X00QUEUE_H
-#define RT2X00QUEUE_H
-
-#include <linux/prefetch.h>
-
-/**
- * DOC: Entry frame size
- *
- * Ralink PCI devices demand the Frame size to be a multiple of 128 bytes,
- * for USB devices this restriction does not apply, but the value of
- * 2432 makes sense since it is big enough to contain the maximum fragment
- * size according to the ieee802.11 specs.
- * The aggregation size depends on support from the driver, but should
- * be something around 3840 bytes.
- */
-#define DATA_FRAME_SIZE 2432
-#define MGMT_FRAME_SIZE 256
-#define AGGREGATION_SIZE 3840
-
-/**
- * enum data_queue_qid: Queue identification
- *
- * @QID_AC_VO: AC VO queue
- * @QID_AC_VI: AC VI queue
- * @QID_AC_BE: AC BE queue
- * @QID_AC_BK: AC BK queue
- * @QID_HCCA: HCCA queue
- * @QID_MGMT: MGMT queue (prio queue)
- * @QID_RX: RX queue
- * @QID_OTHER: None of the above (don't use, only present for completeness)
- * @QID_BEACON: Beacon queue (value unspecified, don't send it to device)
- * @QID_ATIM: Atim queue (value unspecified, don't send it to device)
- */
-enum data_queue_qid {
- QID_AC_VO = 0,
- QID_AC_VI = 1,
- QID_AC_BE = 2,
- QID_AC_BK = 3,
- QID_HCCA = 4,
- QID_MGMT = 13,
- QID_RX = 14,
- QID_OTHER = 15,
- QID_BEACON,
- QID_ATIM,
-};
-
-/**
- * enum skb_frame_desc_flags: Flags for &struct skb_frame_desc
- *
- * @SKBDESC_DMA_MAPPED_RX: &skb_dma field has been mapped for RX
- * @SKBDESC_DMA_MAPPED_TX: &skb_dma field has been mapped for TX
- * @SKBDESC_IV_STRIPPED: Frame contained a IV/EIV provided by
- * mac80211 but was stripped for processing by the driver.
- * @SKBDESC_NOT_MAC80211: Frame didn't originate from mac80211,
- * don't try to pass it back.
- * @SKBDESC_DESC_IN_SKB: The descriptor is at the start of the
- * skb, instead of in the desc field.
- */
-enum skb_frame_desc_flags {
- SKBDESC_DMA_MAPPED_RX = 1 << 0,
- SKBDESC_DMA_MAPPED_TX = 1 << 1,
- SKBDESC_IV_STRIPPED = 1 << 2,
- SKBDESC_NOT_MAC80211 = 1 << 3,
- SKBDESC_DESC_IN_SKB = 1 << 4,
-};
-
-/**
- * struct skb_frame_desc: Descriptor information for the skb buffer
- *
- * This structure is placed over the driver_data array, this means that
- * this structure should not exceed the size of that array (40 bytes).
- *
- * @flags: Frame flags, see &enum skb_frame_desc_flags.
- * @desc_len: Length of the frame descriptor.
- * @tx_rate_idx: the index of the TX rate, used for TX status reporting
- * @tx_rate_flags: the TX rate flags, used for TX status reporting
- * @desc: Pointer to descriptor part of the frame.
- * Note that this pointer could point to something outside
- * of the scope of the skb->data pointer.
- * @iv: IV/EIV data used during encryption/decryption.
- * @skb_dma: (PCI-only) the DMA address associated with the sk buffer.
- * @entry: The entry to which this sk buffer belongs.
- */
-struct skb_frame_desc {
- u8 flags;
-
- u8 desc_len;
- u8 tx_rate_idx;
- u8 tx_rate_flags;
-
- void *desc;
-
- __le32 iv[2];
-
- dma_addr_t skb_dma;
-
- struct queue_entry *entry;
-};
-
-/**
- * get_skb_frame_desc - Obtain the rt2x00 frame descriptor from a sk_buff.
- * @skb: &struct sk_buff from where we obtain the &struct skb_frame_desc
- */
-static inline struct skb_frame_desc* get_skb_frame_desc(struct sk_buff *skb)
-{
- BUILD_BUG_ON(sizeof(struct skb_frame_desc) >
- IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
- return (struct skb_frame_desc *)&IEEE80211_SKB_CB(skb)->driver_data;
-}
-
-/**
- * enum rxdone_entry_desc_flags: Flags for &struct rxdone_entry_desc
- *
- * @RXDONE_SIGNAL_PLCP: Signal field contains the plcp value.
- * @RXDONE_SIGNAL_BITRATE: Signal field contains the bitrate value.
- * @RXDONE_SIGNAL_MCS: Signal field contains the mcs value.
- * @RXDONE_MY_BSS: Does this frame originate from device's BSS.
- * @RXDONE_CRYPTO_IV: Driver provided IV/EIV data.
- * @RXDONE_CRYPTO_ICV: Driver provided ICV data.
- * @RXDONE_L2PAD: 802.11 payload has been padded to 4-byte boundary.
- */
-enum rxdone_entry_desc_flags {
- RXDONE_SIGNAL_PLCP = BIT(0),
- RXDONE_SIGNAL_BITRATE = BIT(1),
- RXDONE_SIGNAL_MCS = BIT(2),
- RXDONE_MY_BSS = BIT(3),
- RXDONE_CRYPTO_IV = BIT(4),
- RXDONE_CRYPTO_ICV = BIT(5),
- RXDONE_L2PAD = BIT(6),
-};
-
-/**
- * RXDONE_SIGNAL_MASK - Define to mask off all &rxdone_entry_desc_flags flags
- * except for the RXDONE_SIGNAL_* flags. This is useful to convert the dev_flags
- * from &rxdone_entry_desc to a signal value type.
- */
-#define RXDONE_SIGNAL_MASK \
- ( RXDONE_SIGNAL_PLCP | RXDONE_SIGNAL_BITRATE | RXDONE_SIGNAL_MCS )
-
-/**
- * struct rxdone_entry_desc: RX Entry descriptor
- *
- * Summary of information that has been read from the RX frame descriptor.
- *
- * @timestamp: RX Timestamp
- * @signal: Signal of the received frame.
- * @rssi: RSSI of the received frame.
- * @size: Data size of the received frame.
- * @flags: MAC80211 receive flags (See &enum mac80211_rx_flags).
- * @dev_flags: Ralink receive flags (See &enum rxdone_entry_desc_flags).
- * @rate_mode: Rate mode (See @enum rate_modulation).
- * @cipher: Cipher type used during decryption.
- * @cipher_status: Decryption status.
- * @iv: IV/EIV data used during decryption.
- * @icv: ICV data used during decryption.
- */
-struct rxdone_entry_desc {
- u64 timestamp;
- int signal;
- int rssi;
- int size;
- int flags;
- int dev_flags;
- u16 rate_mode;
- u8 cipher;
- u8 cipher_status;
-
- __le32 iv[2];
- __le32 icv;
-};
-
-/**
- * enum txdone_entry_desc_flags: Flags for &struct txdone_entry_desc
- *
- * Every txdone report has to contain the basic result of the
- * transmission, either &TXDONE_UNKNOWN, &TXDONE_SUCCESS or
- * &TXDONE_FAILURE. The flag &TXDONE_FALLBACK can be used in
- * conjunction with all of these flags but should only be set
- * if retires > 0. The flag &TXDONE_EXCESSIVE_RETRY can only be used
- * in conjunction with &TXDONE_FAILURE.
- *
- * @TXDONE_UNKNOWN: Hardware could not determine success of transmission.
- * @TXDONE_SUCCESS: Frame was successfully send
- * @TXDONE_FALLBACK: Hardware used fallback rates for retries
- * @TXDONE_FAILURE: Frame was not successfully send
- * @TXDONE_EXCESSIVE_RETRY: In addition to &TXDONE_FAILURE, the
- * frame transmission failed due to excessive retries.
- */
-enum txdone_entry_desc_flags {
- TXDONE_UNKNOWN,
- TXDONE_SUCCESS,
- TXDONE_FALLBACK,
- TXDONE_FAILURE,
- TXDONE_EXCESSIVE_RETRY,
- TXDONE_AMPDU,
-};
-
-/**
- * struct txdone_entry_desc: TX done entry descriptor
- *
- * Summary of information that has been read from the TX frame descriptor
- * after the device is done with transmission.
- *
- * @flags: TX done flags (See &enum txdone_entry_desc_flags).
- * @retry: Retry count.
- */
-struct txdone_entry_desc {
- unsigned long flags;
- int retry;
-};
-
-/**
- * enum txentry_desc_flags: Status flags for TX entry descriptor
- *
- * @ENTRY_TXD_RTS_FRAME: This frame is a RTS frame.
- * @ENTRY_TXD_CTS_FRAME: This frame is a CTS-to-self frame.
- * @ENTRY_TXD_GENERATE_SEQ: This frame requires sequence counter.
- * @ENTRY_TXD_FIRST_FRAGMENT: This is the first frame.
- * @ENTRY_TXD_MORE_FRAG: This frame is followed by another fragment.
- * @ENTRY_TXD_REQ_TIMESTAMP: Require timestamp to be inserted.
- * @ENTRY_TXD_BURST: This frame belongs to the same burst event.
- * @ENTRY_TXD_ACK: An ACK is required for this frame.
- * @ENTRY_TXD_RETRY_MODE: When set, the long retry count is used.
- * @ENTRY_TXD_ENCRYPT: This frame should be encrypted.
- * @ENTRY_TXD_ENCRYPT_PAIRWISE: Use pairwise key table (instead of shared).
- * @ENTRY_TXD_ENCRYPT_IV: Generate IV/EIV in hardware.
- * @ENTRY_TXD_ENCRYPT_MMIC: Generate MIC in hardware.
- * @ENTRY_TXD_HT_AMPDU: This frame is part of an AMPDU.
- * @ENTRY_TXD_HT_BW_40: Use 40MHz Bandwidth.
- * @ENTRY_TXD_HT_SHORT_GI: Use short GI.
- * @ENTRY_TXD_HT_MIMO_PS: The receiving STA is in dynamic SM PS mode.
- */
-enum txentry_desc_flags {
- ENTRY_TXD_RTS_FRAME,
- ENTRY_TXD_CTS_FRAME,
- ENTRY_TXD_GENERATE_SEQ,
- ENTRY_TXD_FIRST_FRAGMENT,
- ENTRY_TXD_MORE_FRAG,
- ENTRY_TXD_REQ_TIMESTAMP,
- ENTRY_TXD_BURST,
- ENTRY_TXD_ACK,
- ENTRY_TXD_RETRY_MODE,
- ENTRY_TXD_ENCRYPT,
- ENTRY_TXD_ENCRYPT_PAIRWISE,
- ENTRY_TXD_ENCRYPT_IV,
- ENTRY_TXD_ENCRYPT_MMIC,
- ENTRY_TXD_HT_AMPDU,
- ENTRY_TXD_HT_BW_40,
- ENTRY_TXD_HT_SHORT_GI,
- ENTRY_TXD_HT_MIMO_PS,
-};
-
-/**
- * struct txentry_desc: TX Entry descriptor
- *
- * Summary of information for the frame descriptor before sending a TX frame.
- *
- * @flags: Descriptor flags (See &enum queue_entry_flags).
- * @length: Length of the entire frame.
- * @header_length: Length of 802.11 header.
- * @length_high: PLCP length high word.
- * @length_low: PLCP length low word.
- * @signal: PLCP signal.
- * @service: PLCP service.
- * @msc: MCS.
- * @stbc: Use Space Time Block Coding (only available for MCS rates < 8).
- * @ba_size: Size of the recepients RX reorder buffer - 1.
- * @rate_mode: Rate mode (See @enum rate_modulation).
- * @mpdu_density: MDPU density.
- * @retry_limit: Max number of retries.
- * @ifs: IFS value.
- * @txop: IFS value for 11n capable chips.
- * @cipher: Cipher type used for encryption.
- * @key_idx: Key index used for encryption.
- * @iv_offset: Position where IV should be inserted by hardware.
- * @iv_len: Length of IV data.
- */
-struct txentry_desc {
- unsigned long flags;
-
- u16 length;
- u16 header_length;
-
- union {
- struct {
- u16 length_high;
- u16 length_low;
- u16 signal;
- u16 service;
- enum ifs ifs;
- } plcp;
-
- struct {
- u16 mcs;
- u8 stbc;
- u8 ba_size;
- u8 mpdu_density;
- enum txop txop;
- int wcid;
- } ht;
- } u;
-
- enum rate_modulation rate_mode;
-
- short retry_limit;
-
- enum cipher cipher;
- u16 key_idx;
- u16 iv_offset;
- u16 iv_len;
-};
-
-/**
- * enum queue_entry_flags: Status flags for queue entry
- *
- * @ENTRY_BCN_ASSIGNED: This entry has been assigned to an interface.
- * As long as this bit is set, this entry may only be touched
- * through the interface structure.
- * @ENTRY_OWNER_DEVICE_DATA: This entry is owned by the device for data
- * transfer (either TX or RX depending on the queue). The entry should
- * only be touched after the device has signaled it is done with it.
- * @ENTRY_DATA_PENDING: This entry contains a valid frame and is waiting
- * for the signal to start sending.
- * @ENTRY_DATA_IO_FAILED: Hardware indicated that an IO error occurred
- * while transferring the data to the hardware. No TX status report will
- * be expected from the hardware.
- * @ENTRY_DATA_STATUS_PENDING: The entry has been send to the device and
- * returned. It is now waiting for the status reporting before the
- * entry can be reused again.
- */
-enum queue_entry_flags {
- ENTRY_BCN_ASSIGNED,
- ENTRY_BCN_ENABLED,
- ENTRY_OWNER_DEVICE_DATA,
- ENTRY_DATA_PENDING,
- ENTRY_DATA_IO_FAILED,
- ENTRY_DATA_STATUS_PENDING,
- ENTRY_DATA_STATUS_SET,
-};
-
-/**
- * struct queue_entry: Entry inside the &struct data_queue
- *
- * @flags: Entry flags, see &enum queue_entry_flags.
- * @last_action: Timestamp of last change.
- * @queue: The data queue (&struct data_queue) to which this entry belongs.
- * @skb: The buffer which is currently being transmitted (for TX queue),
- * or used to directly receive data in (for RX queue).
- * @entry_idx: The entry index number.
- * @priv_data: Private data belonging to this queue entry. The pointer
- * points to data specific to a particular driver and queue type.
- * @status: Device specific status
- */
-struct queue_entry {
- unsigned long flags;
- unsigned long last_action;
-
- struct data_queue *queue;
-
- struct sk_buff *skb;
-
- unsigned int entry_idx;
-
- u32 status;
-
- void *priv_data;
-};
-
-/**
- * enum queue_index: Queue index type
- *
- * @Q_INDEX: Index pointer to the current entry in the queue, if this entry is
- * owned by the hardware then the queue is considered to be full.
- * @Q_INDEX_DMA_DONE: Index pointer for the next entry which will have been
- * transferred to the hardware.
- * @Q_INDEX_DONE: Index pointer to the next entry which will be completed by
- * the hardware and for which we need to run the txdone handler. If this
- * entry is not owned by the hardware the queue is considered to be empty.
- * @Q_INDEX_MAX: Keep last, used in &struct data_queue to determine the size
- * of the index array.
- */
-enum queue_index {
- Q_INDEX,
- Q_INDEX_DMA_DONE,
- Q_INDEX_DONE,
- Q_INDEX_MAX,
-};
-
-/**
- * enum data_queue_flags: Status flags for data queues
- *
- * @QUEUE_STARTED: The queue has been started. Fox RX queues this means the
- * device might be DMA'ing skbuffers. TX queues will accept skbuffers to
- * be transmitted and beacon queues will start beaconing the configured
- * beacons.
- * @QUEUE_PAUSED: The queue has been started but is currently paused.
- * When this bit is set, the queue has been stopped in mac80211,
- * preventing new frames to be enqueued. However, a few frames
- * might still appear shortly after the pausing...
- */
-enum data_queue_flags {
- QUEUE_STARTED,
- QUEUE_PAUSED,
-};
-
-/**
- * struct data_queue: Data queue
- *
- * @rt2x00dev: Pointer to main &struct rt2x00dev where this queue belongs to.
- * @entries: Base address of the &struct queue_entry which are
- * part of this queue.
- * @qid: The queue identification, see &enum data_queue_qid.
- * @flags: Entry flags, see &enum queue_entry_flags.
- * @status_lock: The mutex for protecting the start/stop/flush
- * handling on this queue.
- * @tx_lock: Spinlock to serialize tx operations on this queue.
- * @index_lock: Spinlock to protect index handling. Whenever @index, @index_done or
- * @index_crypt needs to be changed this lock should be grabbed to prevent
- * index corruption due to concurrency.
- * @count: Number of frames handled in the queue.
- * @limit: Maximum number of entries in the queue.
- * @threshold: Minimum number of free entries before queue is kicked by force.
- * @length: Number of frames in queue.
- * @index: Index pointers to entry positions in the queue,
- * use &enum queue_index to get a specific index field.
- * @txop: maximum burst time.
- * @aifs: The aifs value for outgoing frames (field ignored in RX queue).
- * @cw_min: The cw min value for outgoing frames (field ignored in RX queue).
- * @cw_max: The cw max value for outgoing frames (field ignored in RX queue).
- * @data_size: Maximum data size for the frames in this queue.
- * @desc_size: Hardware descriptor size for the data in this queue.
- * @priv_size: Size of per-queue_entry private data.
- * @usb_endpoint: Device endpoint used for communication (USB only)
- * @usb_maxpacket: Max packet size for given endpoint (USB only)
- */
-struct data_queue {
- struct rt2x00_dev *rt2x00dev;
- struct queue_entry *entries;
-
- enum data_queue_qid qid;
- unsigned long flags;
-
- struct mutex status_lock;
- spinlock_t tx_lock;
- spinlock_t index_lock;
-
- unsigned int count;
- unsigned short limit;
- unsigned short threshold;
- unsigned short length;
- unsigned short index[Q_INDEX_MAX];
-
- unsigned short txop;
- unsigned short aifs;
- unsigned short cw_min;
- unsigned short cw_max;
-
- unsigned short data_size;
- unsigned char desc_size;
- unsigned char winfo_size;
- unsigned short priv_size;
-
- unsigned short usb_endpoint;
- unsigned short usb_maxpacket;
-};
-
-/**
- * queue_end - Return pointer to the last queue (HELPER MACRO).
- * @__dev: Pointer to &struct rt2x00_dev
- *
- * Using the base rx pointer and the maximum number of available queues,
- * this macro will return the address of 1 position beyond the end of the
- * queues array.
- */
-#define queue_end(__dev) \
- &(__dev)->rx[(__dev)->data_queues]
-
-/**
- * tx_queue_end - Return pointer to the last TX queue (HELPER MACRO).
- * @__dev: Pointer to &struct rt2x00_dev
- *
- * Using the base tx pointer and the maximum number of available TX
- * queues, this macro will return the address of 1 position beyond
- * the end of the TX queue array.
- */
-#define tx_queue_end(__dev) \
- &(__dev)->tx[(__dev)->ops->tx_queues]
-
-/**
- * queue_next - Return pointer to next queue in list (HELPER MACRO).
- * @__queue: Current queue for which we need the next queue
- *
- * Using the current queue address we take the address directly
- * after the queue to take the next queue. Note that this macro
- * should be used carefully since it does not protect against
- * moving past the end of the list. (See macros &queue_end and
- * &tx_queue_end for determining the end of the queue).
- */
-#define queue_next(__queue) \
- &(__queue)[1]
-
-/**
- * queue_loop - Loop through the queues within a specific range (HELPER MACRO).
- * @__entry: Pointer where the current queue entry will be stored in.
- * @__start: Start queue pointer.
- * @__end: End queue pointer.
- *
- * This macro will loop through all queues between &__start and &__end.
- */
-#define queue_loop(__entry, __start, __end) \
- for ((__entry) = (__start); \
- prefetch(queue_next(__entry)), (__entry) != (__end);\
- (__entry) = queue_next(__entry))
-
-/**
- * queue_for_each - Loop through all queues
- * @__dev: Pointer to &struct rt2x00_dev
- * @__entry: Pointer where the current queue entry will be stored in.
- *
- * This macro will loop through all available queues.
- */
-#define queue_for_each(__dev, __entry) \
- queue_loop(__entry, (__dev)->rx, queue_end(__dev))
-
-/**
- * tx_queue_for_each - Loop through the TX queues
- * @__dev: Pointer to &struct rt2x00_dev
- * @__entry: Pointer where the current queue entry will be stored in.
- *
- * This macro will loop through all TX related queues excluding
- * the Beacon and Atim queues.
- */
-#define tx_queue_for_each(__dev, __entry) \
- queue_loop(__entry, (__dev)->tx, tx_queue_end(__dev))
-
-/**
- * txall_queue_for_each - Loop through all TX related queues
- * @__dev: Pointer to &struct rt2x00_dev
- * @__entry: Pointer where the current queue entry will be stored in.
- *
- * This macro will loop through all TX related queues including
- * the Beacon and Atim queues.
- */
-#define txall_queue_for_each(__dev, __entry) \
- queue_loop(__entry, (__dev)->tx, queue_end(__dev))
-
-/**
- * rt2x00queue_for_each_entry - Loop through all entries in the queue
- * @queue: Pointer to @data_queue
- * @start: &enum queue_index Pointer to start index
- * @end: &enum queue_index Pointer to end index
- * @data: Data to pass to the callback function
- * @fn: The function to call for each &struct queue_entry
- *
- * This will walk through all entries in the queue, in chronological
- * order. This means it will start at the current @start pointer
- * and will walk through the queue until it reaches the @end pointer.
- *
- * If fn returns true for an entry rt2x00queue_for_each_entry will stop
- * processing and return true as well.
- */
-bool rt2x00queue_for_each_entry(struct data_queue *queue,
- enum queue_index start,
- enum queue_index end,
- void *data,
- bool (*fn)(struct queue_entry *entry,
- void *data));
-
-/**
- * rt2x00queue_empty - Check if the queue is empty.
- * @queue: Queue to check if empty.
- */
-static inline int rt2x00queue_empty(struct data_queue *queue)
-{
- return queue->length == 0;
-}
-
-/**
- * rt2x00queue_full - Check if the queue is full.
- * @queue: Queue to check if full.
- */
-static inline int rt2x00queue_full(struct data_queue *queue)
-{
- return queue->length == queue->limit;
-}
-
-/**
- * rt2x00queue_free - Check the number of available entries in queue.
- * @queue: Queue to check.
- */
-static inline int rt2x00queue_available(struct data_queue *queue)
-{
- return queue->limit - queue->length;
-}
-
-/**
- * rt2x00queue_threshold - Check if the queue is below threshold
- * @queue: Queue to check.
- */
-static inline int rt2x00queue_threshold(struct data_queue *queue)
-{
- return rt2x00queue_available(queue) < queue->threshold;
-}
-/**
- * rt2x00queue_dma_timeout - Check if a timeout occurred for DMA transfers
- * @entry: Queue entry to check.
- */
-static inline int rt2x00queue_dma_timeout(struct queue_entry *entry)
-{
- if (!test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
- return false;
- return time_after(jiffies, entry->last_action + msecs_to_jiffies(100));
-}
-
-/**
- * _rt2x00_desc_read - Read a word from the hardware descriptor.
- * @desc: Base descriptor address
- * @word: Word index from where the descriptor should be read.
- * @value: Address where the descriptor value should be written into.
- */
-static inline void _rt2x00_desc_read(__le32 *desc, const u8 word, __le32 *value)
-{
- *value = desc[word];
-}
-
-/**
- * rt2x00_desc_read - Read a word from the hardware descriptor, this
- * function will take care of the byte ordering.
- * @desc: Base descriptor address
- * @word: Word index from where the descriptor should be read.
- * @value: Address where the descriptor value should be written into.
- */
-static inline void rt2x00_desc_read(__le32 *desc, const u8 word, u32 *value)
-{
- __le32 tmp;
- _rt2x00_desc_read(desc, word, &tmp);
- *value = le32_to_cpu(tmp);
-}
-
-/**
- * rt2x00_desc_write - write a word to the hardware descriptor, this
- * function will take care of the byte ordering.
- * @desc: Base descriptor address
- * @word: Word index from where the descriptor should be written.
- * @value: Value that should be written into the descriptor.
- */
-static inline void _rt2x00_desc_write(__le32 *desc, const u8 word, __le32 value)
-{
- desc[word] = value;
-}
-
-/**
- * rt2x00_desc_write - write a word to the hardware descriptor.
- * @desc: Base descriptor address
- * @word: Word index from where the descriptor should be written.
- * @value: Value that should be written into the descriptor.
- */
-static inline void rt2x00_desc_write(__le32 *desc, const u8 word, u32 value)
-{
- _rt2x00_desc_write(desc, word, cpu_to_le32(value));
-}
-
-#endif /* RT2X00QUEUE_H */
projects / cascardo / linux.git / blobdiff