mirror of https://gitee.com/openkylin/linux.git
697 lines
20 KiB
C
697 lines
20 KiB
C
/*
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* Copyright (c) 2008-2009 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef ATH9K_H
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#define ATH9K_H
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#include <linux/etherdevice.h>
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#include <linux/device.h>
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#include <net/mac80211.h>
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#include <linux/leds.h>
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#include "hw.h"
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#include "rc.h"
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#include "debug.h"
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struct ath_node;
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/* Macro to expand scalars to 64-bit objects */
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#define ito64(x) (sizeof(x) == 8) ? \
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(((unsigned long long int)(x)) & (0xff)) : \
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(sizeof(x) == 16) ? \
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(((unsigned long long int)(x)) & 0xffff) : \
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((sizeof(x) == 32) ? \
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(((unsigned long long int)(x)) & 0xffffffff) : \
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(unsigned long long int)(x))
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/* increment with wrap-around */
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#define INCR(_l, _sz) do { \
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(_l)++; \
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(_l) &= ((_sz) - 1); \
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} while (0)
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/* decrement with wrap-around */
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#define DECR(_l, _sz) do { \
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(_l)--; \
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(_l) &= ((_sz) - 1); \
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} while (0)
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#define A_MAX(a, b) ((a) > (b) ? (a) : (b))
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#define ASSERT(exp) BUG_ON(!(exp))
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#define TSF_TO_TU(_h,_l) \
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((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
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#define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
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static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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struct ath_config {
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u32 ath_aggr_prot;
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u16 txpowlimit;
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u8 cabqReadytime;
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};
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/*************************/
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/* Descriptor Management */
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/*************************/
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#define ATH_TXBUF_RESET(_bf) do { \
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(_bf)->bf_stale = false; \
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(_bf)->bf_lastbf = NULL; \
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(_bf)->bf_next = NULL; \
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memset(&((_bf)->bf_state), 0, \
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sizeof(struct ath_buf_state)); \
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} while (0)
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#define ATH_RXBUF_RESET(_bf) do { \
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(_bf)->bf_stale = false; \
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} while (0)
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/**
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* enum buffer_type - Buffer type flags
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*
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* @BUF_HT: Send this buffer using HT capabilities
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* @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
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* @BUF_AGGR: Indicates whether the buffer can be aggregated
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* (used in aggregation scheduling)
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* @BUF_RETRY: Indicates whether the buffer is retried
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* @BUF_XRETRY: To denote excessive retries of the buffer
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*/
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enum buffer_type {
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BUF_HT = BIT(1),
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BUF_AMPDU = BIT(2),
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BUF_AGGR = BIT(3),
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BUF_RETRY = BIT(4),
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BUF_XRETRY = BIT(5),
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};
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struct ath_buf_state {
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int bfs_nframes;
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u16 bfs_al;
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u16 bfs_frmlen;
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int bfs_seqno;
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int bfs_tidno;
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int bfs_retries;
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u8 bf_type;
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u32 bfs_keyix;
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enum ath9k_key_type bfs_keytype;
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};
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#define bf_nframes bf_state.bfs_nframes
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#define bf_al bf_state.bfs_al
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#define bf_frmlen bf_state.bfs_frmlen
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#define bf_retries bf_state.bfs_retries
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#define bf_seqno bf_state.bfs_seqno
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#define bf_tidno bf_state.bfs_tidno
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#define bf_keyix bf_state.bfs_keyix
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#define bf_keytype bf_state.bfs_keytype
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#define bf_isht(bf) (bf->bf_state.bf_type & BUF_HT)
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#define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
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#define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
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#define bf_isretried(bf) (bf->bf_state.bf_type & BUF_RETRY)
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#define bf_isxretried(bf) (bf->bf_state.bf_type & BUF_XRETRY)
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struct ath_buf {
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struct list_head list;
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struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
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an aggregate) */
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struct ath_buf *bf_next; /* next subframe in the aggregate */
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struct sk_buff *bf_mpdu; /* enclosing frame structure */
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struct ath_desc *bf_desc; /* virtual addr of desc */
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dma_addr_t bf_daddr; /* physical addr of desc */
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dma_addr_t bf_buf_addr; /* physical addr of data buffer */
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bool bf_stale;
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u16 bf_flags;
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struct ath_buf_state bf_state;
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dma_addr_t bf_dmacontext;
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};
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struct ath_descdma {
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struct ath_desc *dd_desc;
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dma_addr_t dd_desc_paddr;
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u32 dd_desc_len;
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struct ath_buf *dd_bufptr;
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};
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int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
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struct list_head *head, const char *name,
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int nbuf, int ndesc);
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void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd,
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struct list_head *head);
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/***********/
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/* RX / TX */
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/***********/
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#define ATH_MAX_ANTENNA 3
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#define ATH_RXBUF 512
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#define WME_NUM_TID 16
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#define ATH_TXBUF 512
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#define ATH_TXMAXTRY 13
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#define ATH_11N_TXMAXTRY 10
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#define ATH_MGT_TXMAXTRY 4
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#define WME_BA_BMP_SIZE 64
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#define WME_MAX_BA WME_BA_BMP_SIZE
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#define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
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#define TID_TO_WME_AC(_tid) \
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((((_tid) == 0) || ((_tid) == 3)) ? WME_AC_BE : \
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(((_tid) == 1) || ((_tid) == 2)) ? WME_AC_BK : \
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(((_tid) == 4) || ((_tid) == 5)) ? WME_AC_VI : \
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WME_AC_VO)
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#define WME_AC_BE 0
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#define WME_AC_BK 1
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#define WME_AC_VI 2
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#define WME_AC_VO 3
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#define WME_NUM_AC 4
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#define ADDBA_EXCHANGE_ATTEMPTS 10
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#define ATH_AGGR_DELIM_SZ 4
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#define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */
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/* number of delimiters for encryption padding */
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#define ATH_AGGR_ENCRYPTDELIM 10
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/* minimum h/w qdepth to be sustained to maximize aggregation */
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#define ATH_AGGR_MIN_QDEPTH 2
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#define ATH_AMPDU_SUBFRAME_DEFAULT 32
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#define ATH_AMPDU_LIMIT_MAX (64 * 1024 - 1)
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#define ATH_AMPDU_LIMIT_DEFAULT ATH_AMPDU_LIMIT_MAX
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#define IEEE80211_SEQ_SEQ_SHIFT 4
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#define IEEE80211_SEQ_MAX 4096
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#define IEEE80211_MIN_AMPDU_BUF 0x8
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#define IEEE80211_HTCAP_MAXRXAMPDU_FACTOR 13
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#define IEEE80211_WEP_IVLEN 3
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#define IEEE80211_WEP_KIDLEN 1
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#define IEEE80211_WEP_CRCLEN 4
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#define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
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(IEEE80211_WEP_IVLEN + \
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IEEE80211_WEP_KIDLEN + \
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IEEE80211_WEP_CRCLEN))
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/* return whether a bit at index _n in bitmap _bm is set
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* _sz is the size of the bitmap */
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#define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
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((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
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/* return block-ack bitmap index given sequence and starting sequence */
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#define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
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/* returns delimiter padding required given the packet length */
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#define ATH_AGGR_GET_NDELIM(_len) \
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(((((_len) + ATH_AGGR_DELIM_SZ) < ATH_AGGR_MINPLEN) ? \
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(ATH_AGGR_MINPLEN - (_len) - ATH_AGGR_DELIM_SZ) : 0) >> 2)
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#define BAW_WITHIN(_start, _bawsz, _seqno) \
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((((_seqno) - (_start)) & 4095) < (_bawsz))
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#define ATH_DS_BA_SEQ(_ds) ((_ds)->ds_us.tx.ts_seqnum)
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#define ATH_DS_BA_BITMAP(_ds) (&(_ds)->ds_us.tx.ba_low)
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#define ATH_DS_TX_BA(_ds) ((_ds)->ds_us.tx.ts_flags & ATH9K_TX_BA)
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#define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)])
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enum ATH_AGGR_STATUS {
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ATH_AGGR_DONE,
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ATH_AGGR_BAW_CLOSED,
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ATH_AGGR_LIMITED,
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};
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struct ath_txq {
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u32 axq_qnum;
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u32 *axq_link;
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struct list_head axq_q;
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spinlock_t axq_lock;
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u32 axq_depth;
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u8 axq_aggr_depth;
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u32 axq_totalqueued;
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bool stopped;
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struct ath_buf *axq_linkbuf;
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/* first desc of the last descriptor that contains CTS */
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struct ath_desc *axq_lastdsWithCTS;
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/* final desc of the gating desc that determines whether
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lastdsWithCTS has been DMA'ed or not */
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struct ath_desc *axq_gatingds;
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struct list_head axq_acq;
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};
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#define AGGR_CLEANUP BIT(1)
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#define AGGR_ADDBA_COMPLETE BIT(2)
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#define AGGR_ADDBA_PROGRESS BIT(3)
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struct ath_atx_tid {
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struct list_head list;
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struct list_head buf_q;
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struct ath_node *an;
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struct ath_atx_ac *ac;
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struct ath_buf *tx_buf[ATH_TID_MAX_BUFS];
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u16 seq_start;
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u16 seq_next;
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u16 baw_size;
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int tidno;
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int baw_head; /* first un-acked tx buffer */
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int baw_tail; /* next unused tx buffer slot */
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int sched;
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int paused;
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u8 state;
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};
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struct ath_atx_ac {
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int sched;
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int qnum;
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struct list_head list;
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struct list_head tid_q;
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};
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struct ath_tx_control {
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struct ath_txq *txq;
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int if_id;
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enum ath9k_internal_frame_type frame_type;
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};
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#define ATH_TX_ERROR 0x01
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#define ATH_TX_XRETRY 0x02
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#define ATH_TX_BAR 0x04
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struct ath_node {
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struct ath_softc *an_sc;
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struct ath_atx_tid tid[WME_NUM_TID];
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struct ath_atx_ac ac[WME_NUM_AC];
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u16 maxampdu;
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u8 mpdudensity;
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};
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struct ath_tx {
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u16 seq_no;
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u32 txqsetup;
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int hwq_map[ATH9K_WME_AC_VO+1];
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spinlock_t txbuflock;
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struct list_head txbuf;
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struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
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struct ath_descdma txdma;
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};
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struct ath_rx {
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u8 defant;
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u8 rxotherant;
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u32 *rxlink;
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int bufsize;
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unsigned int rxfilter;
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spinlock_t rxflushlock;
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spinlock_t rxbuflock;
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struct list_head rxbuf;
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struct ath_descdma rxdma;
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};
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int ath_startrecv(struct ath_softc *sc);
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bool ath_stoprecv(struct ath_softc *sc);
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void ath_flushrecv(struct ath_softc *sc);
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u32 ath_calcrxfilter(struct ath_softc *sc);
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int ath_rx_init(struct ath_softc *sc, int nbufs);
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void ath_rx_cleanup(struct ath_softc *sc);
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int ath_rx_tasklet(struct ath_softc *sc, int flush);
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struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
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void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
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int ath_tx_setup(struct ath_softc *sc, int haltype);
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void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx);
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void ath_draintxq(struct ath_softc *sc,
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struct ath_txq *txq, bool retry_tx);
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void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
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void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
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void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
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int ath_tx_init(struct ath_softc *sc, int nbufs);
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void ath_tx_cleanup(struct ath_softc *sc);
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struct ath_txq *ath_test_get_txq(struct ath_softc *sc, struct sk_buff *skb);
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int ath_txq_update(struct ath_softc *sc, int qnum,
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struct ath9k_tx_queue_info *q);
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int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
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struct ath_tx_control *txctl);
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void ath_tx_tasklet(struct ath_softc *sc);
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void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb);
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bool ath_tx_aggr_check(struct ath_softc *sc, struct ath_node *an, u8 tidno);
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int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
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u16 tid, u16 *ssn);
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int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
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void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
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/********/
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/* VIFs */
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/********/
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struct ath_vif {
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int av_bslot;
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__le64 tsf_adjust; /* TSF adjustment for staggered beacons */
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enum nl80211_iftype av_opmode;
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struct ath_buf *av_bcbuf;
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struct ath_tx_control av_btxctl;
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u8 bssid[ETH_ALEN]; /* current BSSID from config_interface */
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};
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/*******************/
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/* Beacon Handling */
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/*******************/
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/*
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* Regardless of the number of beacons we stagger, (i.e. regardless of the
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* number of BSSIDs) if a given beacon does not go out even after waiting this
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* number of beacon intervals, the game's up.
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*/
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#define BSTUCK_THRESH (9 * ATH_BCBUF)
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#define ATH_BCBUF 4
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#define ATH_DEFAULT_BINTVAL 100 /* TU */
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#define ATH_DEFAULT_BMISS_LIMIT 10
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#define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
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struct ath_beacon_config {
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u16 beacon_interval;
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u16 listen_interval;
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u16 dtim_period;
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u16 bmiss_timeout;
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u8 dtim_count;
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};
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struct ath_beacon {
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enum {
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OK, /* no change needed */
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UPDATE, /* update pending */
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COMMIT /* beacon sent, commit change */
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} updateslot; /* slot time update fsm */
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u32 beaconq;
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u32 bmisscnt;
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u32 ast_be_xmit;
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u64 bc_tstamp;
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struct ieee80211_vif *bslot[ATH_BCBUF];
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struct ath_wiphy *bslot_aphy[ATH_BCBUF];
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int slottime;
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int slotupdate;
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struct ath9k_tx_queue_info beacon_qi;
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struct ath_descdma bdma;
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struct ath_txq *cabq;
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struct list_head bbuf;
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};
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void ath_beacon_tasklet(unsigned long data);
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void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif);
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int ath_beaconq_setup(struct ath_hw *ah);
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int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif);
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void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp);
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/*******/
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/* ANI */
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/*******/
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#define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
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#define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
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#define ATH_ANI_POLLINTERVAL 100 /* 100 ms */
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#define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
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#define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
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struct ath_ani {
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bool caldone;
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int16_t noise_floor;
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unsigned int longcal_timer;
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unsigned int shortcal_timer;
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unsigned int resetcal_timer;
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unsigned int checkani_timer;
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struct timer_list timer;
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};
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/********************/
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/* LED Control */
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/********************/
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#define ATH_LED_PIN 1
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#define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */
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#define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */
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enum ath_led_type {
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ATH_LED_RADIO,
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ATH_LED_ASSOC,
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ATH_LED_TX,
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ATH_LED_RX
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};
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struct ath_led {
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struct ath_softc *sc;
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struct led_classdev led_cdev;
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enum ath_led_type led_type;
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char name[32];
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bool registered;
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};
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/********************/
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/* Main driver core */
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/********************/
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/*
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* Default cache line size, in bytes.
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* Used when PCI device not fully initialized by bootrom/BIOS
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*/
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#define DEFAULT_CACHELINE 32
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#define ATH_DEFAULT_NOISE_FLOOR -95
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#define ATH_REGCLASSIDS_MAX 10
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#define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
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#define ATH_MAX_SW_RETRIES 10
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#define ATH_CHAN_MAX 255
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#define IEEE80211_WEP_NKID 4 /* number of key ids */
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/*
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* The key cache is used for h/w cipher state and also for
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* tracking station state such as the current tx antenna.
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* We also setup a mapping table between key cache slot indices
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* and station state to short-circuit node lookups on rx.
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* Different parts have different size key caches. We handle
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* up to ATH_KEYMAX entries (could dynamically allocate state).
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*/
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#define ATH_KEYMAX 128 /* max key cache size we handle */
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#define ATH_TXPOWER_MAX 100 /* .5 dBm units */
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#define ATH_RSSI_DUMMY_MARKER 0x127
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#define ATH_RATE_DUMMY_MARKER 0
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#define SC_OP_INVALID BIT(0)
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#define SC_OP_BEACONS BIT(1)
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#define SC_OP_RXAGGR BIT(2)
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#define SC_OP_TXAGGR BIT(3)
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#define SC_OP_FULL_RESET BIT(4)
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#define SC_OP_PREAMBLE_SHORT BIT(5)
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#define SC_OP_PROTECT_ENABLE BIT(6)
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#define SC_OP_RXFLUSH BIT(7)
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#define SC_OP_LED_ASSOCIATED BIT(8)
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#define SC_OP_WAIT_FOR_BEACON BIT(12)
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#define SC_OP_LED_ON BIT(13)
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#define SC_OP_SCANNING BIT(14)
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#define SC_OP_TSF_RESET BIT(15)
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#define SC_OP_WAIT_FOR_CAB BIT(16)
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#define SC_OP_WAIT_FOR_PSPOLL_DATA BIT(17)
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#define SC_OP_WAIT_FOR_TX_ACK BIT(18)
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#define SC_OP_BEACON_SYNC BIT(19)
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struct ath_bus_ops {
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void (*read_cachesize)(struct ath_softc *sc, int *csz);
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void (*cleanup)(struct ath_softc *sc);
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bool (*eeprom_read)(struct ath_hw *ah, u32 off, u16 *data);
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};
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struct ath_wiphy;
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struct ath_softc {
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struct ieee80211_hw *hw;
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struct device *dev;
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spinlock_t wiphy_lock; /* spinlock to protect ath_wiphy data */
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struct ath_wiphy *pri_wiphy;
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struct ath_wiphy **sec_wiphy; /* secondary wiphys (virtual radios); may
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* have NULL entries */
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int num_sec_wiphy; /* number of sec_wiphy pointers in the array */
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int chan_idx;
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int chan_is_ht;
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struct ath_wiphy *next_wiphy;
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struct work_struct chan_work;
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int wiphy_select_failures;
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unsigned long wiphy_select_first_fail;
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struct delayed_work wiphy_work;
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unsigned long wiphy_scheduler_int;
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int wiphy_scheduler_index;
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struct tasklet_struct intr_tq;
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struct tasklet_struct bcon_tasklet;
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struct ath_hw *sc_ah;
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void __iomem *mem;
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int irq;
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spinlock_t sc_resetlock;
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spinlock_t sc_serial_rw;
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struct mutex mutex;
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u8 curbssid[ETH_ALEN];
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u8 bssidmask[ETH_ALEN];
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u32 intrstatus;
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u32 sc_flags; /* SC_OP_* */
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u16 curtxpow;
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u16 curaid;
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u16 cachelsz;
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u8 nbcnvifs;
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u16 nvifs;
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u8 tx_chainmask;
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u8 rx_chainmask;
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u32 keymax;
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DECLARE_BITMAP(keymap, ATH_KEYMAX);
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u8 splitmic;
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atomic_t ps_usecount;
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enum ath9k_int imask;
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enum ath9k_ht_extprotspacing ht_extprotspacing;
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enum ath9k_ht_macmode tx_chan_width;
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struct ath_config config;
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struct ath_rx rx;
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struct ath_tx tx;
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struct ath_beacon beacon;
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struct ieee80211_rate rates[IEEE80211_NUM_BANDS][ATH_RATE_MAX];
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const struct ath_rate_table *hw_rate_table[ATH9K_MODE_MAX];
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const struct ath_rate_table *cur_rate_table;
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struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
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struct ath_led radio_led;
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struct ath_led assoc_led;
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struct ath_led tx_led;
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struct ath_led rx_led;
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struct delayed_work ath_led_blink_work;
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int led_on_duration;
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int led_off_duration;
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int led_on_cnt;
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int led_off_cnt;
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int beacon_interval;
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struct ath_ani ani;
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struct ath9k_node_stats nodestats;
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#ifdef CONFIG_ATH9K_DEBUG
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struct ath9k_debug debug;
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#endif
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struct ath_bus_ops *bus_ops;
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struct ath_beacon_config cur_beacon_conf;
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};
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struct ath_wiphy {
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struct ath_softc *sc; /* shared for all virtual wiphys */
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struct ieee80211_hw *hw;
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enum ath_wiphy_state {
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ATH_WIPHY_INACTIVE,
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ATH_WIPHY_ACTIVE,
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ATH_WIPHY_PAUSING,
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ATH_WIPHY_PAUSED,
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ATH_WIPHY_SCAN,
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} state;
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int chan_idx;
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int chan_is_ht;
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};
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int ath_reset(struct ath_softc *sc, bool retry_tx);
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int ath_get_hal_qnum(u16 queue, struct ath_softc *sc);
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int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc);
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int ath_cabq_update(struct ath_softc *);
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static inline void ath_read_cachesize(struct ath_softc *sc, int *csz)
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{
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sc->bus_ops->read_cachesize(sc, csz);
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}
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static inline void ath_bus_cleanup(struct ath_softc *sc)
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{
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sc->bus_ops->cleanup(sc);
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}
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extern struct ieee80211_ops ath9k_ops;
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irqreturn_t ath_isr(int irq, void *dev);
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void ath_cleanup(struct ath_softc *sc);
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int ath_attach(u16 devid, struct ath_softc *sc);
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void ath_detach(struct ath_softc *sc);
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const char *ath_mac_bb_name(u32 mac_bb_version);
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const char *ath_rf_name(u16 rf_version);
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void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
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void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
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struct ath9k_channel *ichan);
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void ath_update_chainmask(struct ath_softc *sc, int is_ht);
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int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
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struct ath9k_channel *hchan);
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void ath_radio_enable(struct ath_softc *sc);
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void ath_radio_disable(struct ath_softc *sc);
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#ifdef CONFIG_PCI
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int ath_pci_init(void);
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void ath_pci_exit(void);
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#else
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static inline int ath_pci_init(void) { return 0; };
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static inline void ath_pci_exit(void) {};
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#endif
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#ifdef CONFIG_ATHEROS_AR71XX
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int ath_ahb_init(void);
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void ath_ahb_exit(void);
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#else
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static inline int ath_ahb_init(void) { return 0; };
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static inline void ath_ahb_exit(void) {};
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#endif
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static inline void ath9k_ps_wakeup(struct ath_softc *sc)
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{
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if (atomic_inc_return(&sc->ps_usecount) == 1)
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if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) {
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sc->sc_ah->restore_mode = sc->sc_ah->power_mode;
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ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
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}
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}
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static inline void ath9k_ps_restore(struct ath_softc *sc)
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{
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if (atomic_dec_and_test(&sc->ps_usecount))
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if ((sc->hw->conf.flags & IEEE80211_CONF_PS) &&
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!(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
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SC_OP_WAIT_FOR_CAB |
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SC_OP_WAIT_FOR_PSPOLL_DATA |
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SC_OP_WAIT_FOR_TX_ACK)))
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ath9k_hw_setpower(sc->sc_ah,
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sc->sc_ah->restore_mode);
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}
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void ath9k_set_bssid_mask(struct ieee80211_hw *hw);
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int ath9k_wiphy_add(struct ath_softc *sc);
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int ath9k_wiphy_del(struct ath_wiphy *aphy);
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void ath9k_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb);
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int ath9k_wiphy_pause(struct ath_wiphy *aphy);
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int ath9k_wiphy_unpause(struct ath_wiphy *aphy);
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int ath9k_wiphy_select(struct ath_wiphy *aphy);
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void ath9k_wiphy_set_scheduler(struct ath_softc *sc, unsigned int msec_int);
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void ath9k_wiphy_chan_work(struct work_struct *work);
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bool ath9k_wiphy_started(struct ath_softc *sc);
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void ath9k_wiphy_pause_all_forced(struct ath_softc *sc,
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struct ath_wiphy *selected);
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bool ath9k_wiphy_scanning(struct ath_softc *sc);
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void ath9k_wiphy_work(struct work_struct *work);
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void ath9k_iowrite32(struct ath_hw *ah, u32 reg_offset, u32 val);
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unsigned int ath9k_ioread32(struct ath_hw *ah, u32 reg_offset);
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#endif /* ATH9K_H */
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