1156 lines
31 KiB
C
1156 lines
31 KiB
C
/*
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* Copyright (c) 2008-2011 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 <linux/interrupt.h>
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#include <linux/kstrtox.h>
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#include <linux/leds.h>
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#include <linux/completion.h>
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#include <linux/time.h>
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#include <linux/hw_random.h>
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#include "common.h"
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#include "debug.h"
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#include "mci.h"
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#include "dfs.h"
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struct ath_node;
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struct ath_vif;
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extern struct ieee80211_ops ath9k_ops;
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extern int ath9k_modparam_nohwcrypt;
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extern int ath9k_led_blink;
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extern bool is_ath9k_unloaded;
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extern int ath9k_use_chanctx;
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/*************************/
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/* Descriptor Management */
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/*************************/
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#define ATH_TXSTATUS_RING_SIZE 512
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/* Macro to expand scalars to 64-bit objects */
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#define ito64(x) (sizeof(x) == 1) ? \
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(((unsigned long long int)(x)) & (0xff)) : \
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(sizeof(x) == 2) ? \
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(((unsigned long long int)(x)) & 0xffff) : \
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((sizeof(x) == 4) ? \
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(((unsigned long long int)(x)) & 0xffffffff) : \
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(unsigned long long int)(x))
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#define ATH_TXBUF_RESET(_bf) do { \
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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 DS2PHYS(_dd, _ds) \
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((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
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#define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
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#define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
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struct ath_descdma {
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void *dd_desc;
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dma_addr_t dd_desc_paddr;
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u32 dd_desc_len;
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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, bool is_tx);
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/***********/
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/* RX / TX */
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/***********/
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#define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
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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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#define ATH_RXBUF 512
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#define ATH_TXBUF 512
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#define ATH_TXBUF_RESERVE 5
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#define ATH_TXMAXTRY 13
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#define ATH_MAX_SW_RETRIES 30
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#define TID_TO_WME_AC(_tid) \
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((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \
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(((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \
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(((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \
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IEEE80211_AC_VO)
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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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/* minimum h/w qdepth for non-aggregated traffic */
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#define ATH_NON_AGGR_MIN_QDEPTH 8
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#define ATH_HW_CHECK_POLL_INT 1000
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#define ATH_TXFIFO_DEPTH 8
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#define ATH_TX_ERROR 0x01
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/* Stop tx traffic 1ms before the GO goes away */
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#define ATH_P2P_PS_STOP_TIME 1000
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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_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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/* return the seqno for _start + _offset */
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#define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (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_MINPLEN) ? 0 : \
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DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ))
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#define BAW_WITHIN(_start, _bawsz, _seqno) \
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((((_seqno) - (_start)) & 4095) < (_bawsz))
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#define ATH_AN_2_TID(_an, _tidno) ath_node_to_tid(_an, _tidno)
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#define IS_HT_RATE(rate) (rate & 0x80)
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#define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
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#define IS_OFDM_RATE(rate) ((rate >= 0x8) && (rate <= 0xf))
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enum {
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WLAN_RC_PHY_OFDM,
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WLAN_RC_PHY_CCK,
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};
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struct ath_txq {
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int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
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u32 axq_qnum; /* ath9k hardware queue number */
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void *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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u32 axq_ampdu_depth;
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bool axq_tx_inprogress;
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struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
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u8 txq_headidx;
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u8 txq_tailidx;
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int pending_frames;
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struct sk_buff_head complete_q;
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};
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struct ath_frame_info {
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struct ath_buf *bf;
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u16 framelen;
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s8 txq;
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u8 keyix;
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u8 rtscts_rate;
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u8 retries : 6;
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u8 dyn_smps : 1;
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u8 baw_tracked : 1;
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u8 tx_power;
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enum ath9k_key_type keytype:2;
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};
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struct ath_rxbuf {
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struct list_head list;
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struct sk_buff *bf_mpdu;
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void *bf_desc;
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dma_addr_t bf_daddr;
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dma_addr_t bf_buf_addr;
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};
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/**
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* enum buffer_type - Buffer type flags
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*
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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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*/
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enum buffer_type {
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BUF_AMPDU = BIT(0),
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BUF_AGGR = BIT(1),
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};
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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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struct ath_buf_state {
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u8 bf_type;
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u8 bfs_paprd;
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u8 ndelim;
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bool stale;
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u16 seqno;
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unsigned long bfs_paprd_timestamp;
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};
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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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void *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, for DMA */
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struct ieee80211_tx_rate rates[4];
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struct ath_buf_state bf_state;
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};
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struct ath_atx_tid {
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struct list_head list;
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struct sk_buff_head retry_q;
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struct ath_node *an;
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struct ath_txq *txq;
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unsigned long tx_buf[BITS_TO_LONGS(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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u8 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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s8 bar_index;
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bool active;
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bool clear_ps_filter;
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};
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void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
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struct ath_node {
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struct ath_softc *sc;
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struct ieee80211_sta *sta; /* station struct we're part of */
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struct ieee80211_vif *vif; /* interface with which we're associated */
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u16 maxampdu;
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u8 mpdudensity;
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s8 ps_key;
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bool sleeping;
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bool no_ps_filter;
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#ifdef CONFIG_ATH9K_STATION_STATISTICS
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struct ath_rx_rate_stats rx_rate_stats;
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#endif
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u8 key_idx[4];
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int ackto;
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struct list_head list;
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};
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struct ath_tx_control {
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struct ath_txq *txq;
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struct ath_node *an;
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struct ieee80211_sta *sta;
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u8 paprd;
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};
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/**
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* @txq_map: Index is mac80211 queue number. This is
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* not necessarily the same as the hardware queue number
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* (axq_qnum).
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*/
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struct ath_tx {
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u32 txqsetup;
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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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struct ath_txq *txq_map[IEEE80211_NUM_ACS];
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struct ath_txq *uapsdq;
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u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
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};
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struct ath_rx_edma {
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struct sk_buff_head rx_fifo;
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u32 rx_fifo_hwsize;
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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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bool discard_next;
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u32 *rxlink;
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u32 num_pkts;
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struct list_head rxbuf;
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struct ath_descdma rxdma;
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struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
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struct ath_rxbuf *buf_hold;
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struct sk_buff *frag;
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u32 ampdu_ref;
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};
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/*******************/
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/* Channel Context */
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/*******************/
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struct ath_acq {
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struct list_head acq_new;
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struct list_head acq_old;
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spinlock_t lock;
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};
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struct ath_chanctx {
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struct cfg80211_chan_def chandef;
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struct list_head vifs;
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struct ath_acq acq[IEEE80211_NUM_ACS];
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int hw_queue_base;
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/* do not dereference, use for comparison only */
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struct ieee80211_vif *primary_sta;
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struct ath_beacon_config beacon;
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struct ath9k_hw_cal_data caldata;
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struct timespec64 tsf_ts;
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u64 tsf_val;
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u32 last_beacon;
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int flush_timeout;
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u16 txpower;
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u16 cur_txpower;
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bool offchannel;
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bool stopped;
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bool active;
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bool assigned;
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bool switch_after_beacon;
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short nvifs;
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short nvifs_assigned;
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unsigned int rxfilter;
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};
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enum ath_chanctx_event {
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ATH_CHANCTX_EVENT_BEACON_PREPARE,
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ATH_CHANCTX_EVENT_BEACON_SENT,
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ATH_CHANCTX_EVENT_TSF_TIMER,
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ATH_CHANCTX_EVENT_BEACON_RECEIVED,
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ATH_CHANCTX_EVENT_AUTHORIZED,
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ATH_CHANCTX_EVENT_SWITCH,
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ATH_CHANCTX_EVENT_ASSIGN,
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ATH_CHANCTX_EVENT_UNASSIGN,
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ATH_CHANCTX_EVENT_CHANGE,
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ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
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};
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enum ath_chanctx_state {
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ATH_CHANCTX_STATE_IDLE,
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ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
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ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
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ATH_CHANCTX_STATE_SWITCH,
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ATH_CHANCTX_STATE_FORCE_ACTIVE,
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};
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struct ath_chanctx_sched {
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bool beacon_pending;
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bool beacon_adjust;
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bool offchannel_pending;
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bool wait_switch;
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bool force_noa_update;
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bool extend_absence;
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bool mgd_prepare_tx;
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enum ath_chanctx_state state;
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u8 beacon_miss;
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u32 next_tbtt;
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u32 switch_start_time;
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unsigned int offchannel_duration;
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unsigned int channel_switch_time;
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/* backup, in case the hardware timer fails */
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struct timer_list timer;
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};
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enum ath_offchannel_state {
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ATH_OFFCHANNEL_IDLE,
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ATH_OFFCHANNEL_PROBE_SEND,
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ATH_OFFCHANNEL_PROBE_WAIT,
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ATH_OFFCHANNEL_SUSPEND,
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ATH_OFFCHANNEL_ROC_START,
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ATH_OFFCHANNEL_ROC_WAIT,
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ATH_OFFCHANNEL_ROC_DONE,
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};
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enum ath_roc_complete_reason {
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ATH_ROC_COMPLETE_EXPIRE,
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ATH_ROC_COMPLETE_ABORT,
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ATH_ROC_COMPLETE_CANCEL,
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};
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struct ath_offchannel {
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struct ath_chanctx chan;
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struct timer_list timer;
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struct cfg80211_scan_request *scan_req;
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struct ieee80211_vif *scan_vif;
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int scan_idx;
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enum ath_offchannel_state state;
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struct ieee80211_channel *roc_chan;
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struct ieee80211_vif *roc_vif;
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int roc_duration;
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int duration;
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};
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static inline struct ath_atx_tid *
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ath_node_to_tid(struct ath_node *an, u8 tidno)
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{
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struct ieee80211_sta *sta = an->sta;
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struct ieee80211_vif *vif = an->vif;
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struct ieee80211_txq *txq;
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BUG_ON(!vif);
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if (sta)
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txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
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else
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txq = vif->txq;
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return (struct ath_atx_tid *) txq->drv_priv;
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}
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#define case_rtn_string(val) case val: return #val
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#define ath_for_each_chanctx(_sc, _ctx) \
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for (ctx = &sc->chanctx[0]; \
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ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
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ctx++)
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void ath_chanctx_init(struct ath_softc *sc);
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void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
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struct cfg80211_chan_def *chandef);
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#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
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static inline struct ath_chanctx *
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ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
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{
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struct ath_chanctx **ptr = (void *) ctx->drv_priv;
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return *ptr;
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}
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bool ath9k_is_chanctx_enabled(void);
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void ath9k_fill_chanctx_ops(void);
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void ath9k_init_channel_context(struct ath_softc *sc);
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void ath9k_offchannel_init(struct ath_softc *sc);
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void ath9k_deinit_channel_context(struct ath_softc *sc);
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int ath9k_init_p2p(struct ath_softc *sc);
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void ath9k_deinit_p2p(struct ath_softc *sc);
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void ath9k_p2p_remove_vif(struct ath_softc *sc,
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struct ieee80211_vif *vif);
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void ath9k_p2p_beacon_sync(struct ath_softc *sc);
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void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
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struct ieee80211_vif *vif);
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void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
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struct sk_buff *skb);
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void ath9k_p2p_ps_timer(void *priv);
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void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
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void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
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void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
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void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
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enum ath_chanctx_event ev);
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void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
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enum ath_chanctx_event ev);
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void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
|
|
enum ath_chanctx_event ev);
|
|
void ath_chanctx_set_next(struct ath_softc *sc, bool force);
|
|
void ath_offchannel_next(struct ath_softc *sc);
|
|
void ath_scan_complete(struct ath_softc *sc, bool abort);
|
|
void ath_roc_complete(struct ath_softc *sc,
|
|
enum ath_roc_complete_reason reason);
|
|
struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
|
|
|
|
#else
|
|
|
|
static inline bool ath9k_is_chanctx_enabled(void)
|
|
{
|
|
return false;
|
|
}
|
|
static inline void ath9k_fill_chanctx_ops(void)
|
|
{
|
|
}
|
|
static inline void ath9k_init_channel_context(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath9k_offchannel_init(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
|
|
enum ath_chanctx_event ev)
|
|
{
|
|
}
|
|
static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
|
|
enum ath_chanctx_event ev)
|
|
{
|
|
}
|
|
static inline void ath_chanctx_event(struct ath_softc *sc,
|
|
struct ieee80211_vif *vif,
|
|
enum ath_chanctx_event ev)
|
|
{
|
|
}
|
|
static inline int ath9k_init_p2p(struct ath_softc *sc)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void ath9k_deinit_p2p(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
}
|
|
static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
}
|
|
static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
|
|
struct sk_buff *skb)
|
|
{
|
|
}
|
|
static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
|
|
struct ath_chanctx *ctx)
|
|
{
|
|
}
|
|
static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
|
|
struct ath_chanctx *ctx)
|
|
{
|
|
}
|
|
static inline void ath_chanctx_check_active(struct ath_softc *sc,
|
|
struct ath_chanctx *ctx)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
|
|
|
|
static inline void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
|
|
{
|
|
spin_lock_bh(&txq->axq_lock);
|
|
}
|
|
static inline void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
|
|
{
|
|
spin_unlock_bh(&txq->axq_lock);
|
|
}
|
|
|
|
void ath_startrecv(struct ath_softc *sc);
|
|
bool ath_stoprecv(struct ath_softc *sc);
|
|
u32 ath_calcrxfilter(struct ath_softc *sc);
|
|
int ath_rx_init(struct ath_softc *sc, int nbufs);
|
|
void ath_rx_cleanup(struct ath_softc *sc);
|
|
int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
|
|
struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
|
|
void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
|
|
void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
|
|
bool ath_drain_all_txq(struct ath_softc *sc);
|
|
void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
|
|
void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
|
|
void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
|
|
void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
|
|
void ath_txq_schedule_all(struct ath_softc *sc);
|
|
int ath_tx_init(struct ath_softc *sc, int nbufs);
|
|
int ath_txq_update(struct ath_softc *sc, int qnum,
|
|
struct ath9k_tx_queue_info *q);
|
|
u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen,
|
|
int width, int half_gi, bool shortPreamble);
|
|
void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
|
|
void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
|
|
int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
|
|
struct ath_tx_control *txctl);
|
|
void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
|
|
struct sk_buff *skb);
|
|
void ath_tx_tasklet(struct ath_softc *sc);
|
|
void ath_tx_edma_tasklet(struct ath_softc *sc);
|
|
int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
|
|
u16 tid, u16 *ssn);
|
|
void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
|
|
|
|
void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
|
|
void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
|
|
struct ath_node *an);
|
|
void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
|
|
struct ieee80211_sta *sta,
|
|
u16 tids, int nframes,
|
|
enum ieee80211_frame_release_type reason,
|
|
bool more_data);
|
|
void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
|
|
|
|
/********/
|
|
/* VIFs */
|
|
/********/
|
|
|
|
#define P2P_DEFAULT_CTWIN 10
|
|
|
|
struct ath_vif {
|
|
struct list_head list;
|
|
|
|
u16 seq_no;
|
|
|
|
/* BSS info */
|
|
u8 bssid[ETH_ALEN] __aligned(2);
|
|
u16 aid;
|
|
bool assoc;
|
|
|
|
struct ieee80211_vif *vif;
|
|
struct ath_node mcast_node;
|
|
int av_bslot;
|
|
__le64 tsf_adjust; /* TSF adjustment for staggered beacons */
|
|
struct ath_buf *av_bcbuf;
|
|
struct ath_chanctx *chanctx;
|
|
|
|
/* P2P Client */
|
|
struct ieee80211_noa_data noa;
|
|
|
|
/* P2P GO */
|
|
u8 noa_index;
|
|
u32 offchannel_start;
|
|
u32 offchannel_duration;
|
|
|
|
/* These are used for both periodic and one-shot */
|
|
u32 noa_start;
|
|
u32 noa_duration;
|
|
bool periodic_noa;
|
|
bool oneshot_noa;
|
|
};
|
|
|
|
struct ath9k_vif_iter_data {
|
|
u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
|
|
u8 mask[ETH_ALEN]; /* bssid mask */
|
|
bool has_hw_macaddr;
|
|
u8 slottime;
|
|
bool beacons;
|
|
|
|
int naps; /* number of AP vifs */
|
|
int nmeshes; /* number of mesh vifs */
|
|
int nstations; /* number of station vifs */
|
|
int nadhocs; /* number of adhoc vifs */
|
|
int nocbs; /* number of OCB vifs */
|
|
int nbcnvifs; /* number of beaconing vifs */
|
|
struct ieee80211_vif *primary_beacon_vif;
|
|
struct ieee80211_vif *primary_sta;
|
|
};
|
|
|
|
void ath9k_calculate_iter_data(struct ath_softc *sc,
|
|
struct ath_chanctx *ctx,
|
|
struct ath9k_vif_iter_data *iter_data);
|
|
void ath9k_calculate_summary_state(struct ath_softc *sc,
|
|
struct ath_chanctx *ctx);
|
|
void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif);
|
|
|
|
/*******************/
|
|
/* Beacon Handling */
|
|
/*******************/
|
|
|
|
/*
|
|
* Regardless of the number of beacons we stagger, (i.e. regardless of the
|
|
* number of BSSIDs) if a given beacon does not go out even after waiting this
|
|
* number of beacon intervals, the game's up.
|
|
*/
|
|
#define BSTUCK_THRESH 9
|
|
#define ATH_BCBUF 8
|
|
#define ATH_DEFAULT_BINTVAL 100 /* TU */
|
|
#define ATH_DEFAULT_BMISS_LIMIT 10
|
|
|
|
#define TSF_TO_TU(_h,_l) \
|
|
((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
|
|
|
|
struct ath_beacon {
|
|
enum {
|
|
OK, /* no change needed */
|
|
UPDATE, /* update pending */
|
|
COMMIT /* beacon sent, commit change */
|
|
} updateslot; /* slot time update fsm */
|
|
|
|
u32 beaconq;
|
|
u32 bmisscnt;
|
|
struct ieee80211_vif *bslot[ATH_BCBUF];
|
|
int slottime;
|
|
int slotupdate;
|
|
struct ath_descdma bdma;
|
|
struct ath_txq *cabq;
|
|
struct list_head bbuf;
|
|
|
|
bool tx_processed;
|
|
bool tx_last;
|
|
};
|
|
|
|
void ath9k_beacon_tasklet(struct tasklet_struct *t);
|
|
void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
|
|
bool beacons);
|
|
void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
|
|
void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
|
|
void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc);
|
|
void ath9k_set_beacon(struct ath_softc *sc);
|
|
bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
|
|
void ath9k_csa_update(struct ath_softc *sc);
|
|
|
|
/*******************/
|
|
/* Link Monitoring */
|
|
/*******************/
|
|
|
|
#define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
|
|
#define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
|
|
#define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
|
|
#define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
|
|
#define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
|
|
#define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
|
|
#define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
|
|
#define ATH_ANI_MAX_SKIP_COUNT 10
|
|
#define ATH_PAPRD_TIMEOUT 100 /* msecs */
|
|
#define ATH_PLL_WORK_INTERVAL 100
|
|
|
|
void ath_hw_check_work(struct work_struct *work);
|
|
void ath_reset_work(struct work_struct *work);
|
|
bool ath_hw_check(struct ath_softc *sc);
|
|
void ath_hw_pll_work(struct work_struct *work);
|
|
void ath_paprd_calibrate(struct work_struct *work);
|
|
void ath_ani_calibrate(struct timer_list *t);
|
|
void ath_start_ani(struct ath_softc *sc);
|
|
void ath_stop_ani(struct ath_softc *sc);
|
|
void ath_check_ani(struct ath_softc *sc);
|
|
int ath_update_survey_stats(struct ath_softc *sc);
|
|
void ath_update_survey_nf(struct ath_softc *sc, int channel);
|
|
void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
|
|
void ath_ps_full_sleep(struct timer_list *t);
|
|
void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
|
|
bool sw_pending, bool timeout_override);
|
|
|
|
/**********/
|
|
/* BTCOEX */
|
|
/**********/
|
|
|
|
#define ATH_DUMP_BTCOEX(_s, _val) \
|
|
do { \
|
|
len += scnprintf(buf + len, size - len, \
|
|
"%20s : %10d\n", _s, (_val)); \
|
|
} while (0)
|
|
|
|
enum bt_op_flags {
|
|
BT_OP_PRIORITY_DETECTED,
|
|
BT_OP_SCAN,
|
|
};
|
|
|
|
struct ath_btcoex {
|
|
spinlock_t btcoex_lock;
|
|
struct timer_list period_timer; /* Timer for BT period */
|
|
struct timer_list no_stomp_timer;
|
|
u32 bt_priority_cnt;
|
|
unsigned long bt_priority_time;
|
|
unsigned long op_flags;
|
|
int bt_stomp_type; /* Types of BT stomping */
|
|
u32 btcoex_no_stomp; /* in msec */
|
|
u32 btcoex_period; /* in msec */
|
|
u32 btscan_no_stomp; /* in msec */
|
|
u32 duty_cycle;
|
|
u32 bt_wait_time;
|
|
int rssi_count;
|
|
struct ath_mci_profile mci;
|
|
u8 stomp_audio;
|
|
};
|
|
|
|
#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
|
|
int ath9k_init_btcoex(struct ath_softc *sc);
|
|
void ath9k_deinit_btcoex(struct ath_softc *sc);
|
|
void ath9k_start_btcoex(struct ath_softc *sc);
|
|
void ath9k_stop_btcoex(struct ath_softc *sc);
|
|
void ath9k_btcoex_timer_resume(struct ath_softc *sc);
|
|
void ath9k_btcoex_timer_pause(struct ath_softc *sc);
|
|
void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
|
|
u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
|
|
void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
|
|
int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
|
|
#else
|
|
static inline int ath9k_init_btcoex(struct ath_softc *sc)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath9k_start_btcoex(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath9k_stop_btcoex(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
|
|
u32 status)
|
|
{
|
|
}
|
|
static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
|
|
u32 max_4ms_framelen)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
|
|
|
|
/********************/
|
|
/* LED Control */
|
|
/********************/
|
|
|
|
#define ATH_LED_PIN_DEF 1
|
|
#define ATH_LED_PIN_9287 8
|
|
#define ATH_LED_PIN_9300 10
|
|
#define ATH_LED_PIN_9485 6
|
|
#define ATH_LED_PIN_9462 4
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
void ath_init_leds(struct ath_softc *sc);
|
|
void ath_deinit_leds(struct ath_softc *sc);
|
|
#else
|
|
static inline void ath_init_leds(struct ath_softc *sc)
|
|
{
|
|
}
|
|
|
|
static inline void ath_deinit_leds(struct ath_softc *sc)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/************************/
|
|
/* Wake on Wireless LAN */
|
|
/************************/
|
|
|
|
#ifdef CONFIG_ATH9K_WOW
|
|
void ath9k_init_wow(struct ieee80211_hw *hw);
|
|
void ath9k_deinit_wow(struct ieee80211_hw *hw);
|
|
int ath9k_suspend(struct ieee80211_hw *hw,
|
|
struct cfg80211_wowlan *wowlan);
|
|
int ath9k_resume(struct ieee80211_hw *hw);
|
|
void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
|
|
#else
|
|
static inline void ath9k_init_wow(struct ieee80211_hw *hw)
|
|
{
|
|
}
|
|
static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
|
|
{
|
|
}
|
|
static inline int ath9k_suspend(struct ieee80211_hw *hw,
|
|
struct cfg80211_wowlan *wowlan)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int ath9k_resume(struct ieee80211_hw *hw)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
|
|
{
|
|
}
|
|
#endif /* CONFIG_ATH9K_WOW */
|
|
|
|
/*******************************/
|
|
/* Antenna diversity/combining */
|
|
/*******************************/
|
|
|
|
#define ATH_ANT_RX_CURRENT_SHIFT 4
|
|
#define ATH_ANT_RX_MAIN_SHIFT 2
|
|
#define ATH_ANT_RX_MASK 0x3
|
|
|
|
#define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
|
|
#define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
|
|
#define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
|
|
#define ATH_ANT_DIV_COMB_INIT_COUNT 95
|
|
#define ATH_ANT_DIV_COMB_MAX_COUNT 100
|
|
#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
|
|
#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
|
|
#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
|
|
#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
|
|
|
|
#define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
|
|
#define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
|
|
#define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
|
|
|
|
struct ath_ant_comb {
|
|
u16 count;
|
|
u16 total_pkt_count;
|
|
bool scan;
|
|
bool scan_not_start;
|
|
int main_total_rssi;
|
|
int alt_total_rssi;
|
|
int alt_recv_cnt;
|
|
int main_recv_cnt;
|
|
int rssi_lna1;
|
|
int rssi_lna2;
|
|
int rssi_add;
|
|
int rssi_sub;
|
|
int rssi_first;
|
|
int rssi_second;
|
|
int rssi_third;
|
|
int ant_ratio;
|
|
int ant_ratio2;
|
|
bool alt_good;
|
|
int quick_scan_cnt;
|
|
enum ath9k_ant_div_comb_lna_conf main_conf;
|
|
enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
|
|
enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
|
|
bool first_ratio;
|
|
bool second_ratio;
|
|
unsigned long scan_start_time;
|
|
|
|
/*
|
|
* Card-specific config values.
|
|
*/
|
|
int low_rssi_thresh;
|
|
int fast_div_bias;
|
|
};
|
|
|
|
void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
|
|
|
|
/********************/
|
|
/* Main driver core */
|
|
/********************/
|
|
|
|
#define ATH9K_PCI_CUS198 0x0001
|
|
#define ATH9K_PCI_CUS230 0x0002
|
|
#define ATH9K_PCI_CUS217 0x0004
|
|
#define ATH9K_PCI_CUS252 0x0008
|
|
#define ATH9K_PCI_WOW 0x0010
|
|
#define ATH9K_PCI_BT_ANT_DIV 0x0020
|
|
#define ATH9K_PCI_D3_L1_WAR 0x0040
|
|
#define ATH9K_PCI_AR9565_1ANT 0x0080
|
|
#define ATH9K_PCI_AR9565_2ANT 0x0100
|
|
#define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200
|
|
#define ATH9K_PCI_KILLER 0x0400
|
|
#define ATH9K_PCI_LED_ACT_HI 0x0800
|
|
|
|
/*
|
|
* Default cache line size, in bytes.
|
|
* Used when PCI device not fully initialized by bootrom/BIOS
|
|
*/
|
|
#define DEFAULT_CACHELINE 32
|
|
#define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
|
|
#define ATH_TXPOWER_MAX 100 /* .5 dBm units */
|
|
#define MAX_GTT_CNT 5
|
|
|
|
/* Powersave flags */
|
|
#define PS_WAIT_FOR_BEACON BIT(0)
|
|
#define PS_WAIT_FOR_CAB BIT(1)
|
|
#define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
|
|
#define PS_WAIT_FOR_TX_ACK BIT(3)
|
|
#define PS_BEACON_SYNC BIT(4)
|
|
#define PS_WAIT_FOR_ANI BIT(5)
|
|
|
|
#define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
|
|
|
|
struct ath_softc {
|
|
struct ieee80211_hw *hw;
|
|
struct device *dev;
|
|
|
|
struct survey_info *cur_survey;
|
|
struct survey_info survey[ATH9K_NUM_CHANNELS];
|
|
|
|
spinlock_t intr_lock;
|
|
struct tasklet_struct intr_tq;
|
|
struct tasklet_struct bcon_tasklet;
|
|
struct ath_hw *sc_ah;
|
|
void __iomem *mem;
|
|
int irq;
|
|
spinlock_t sc_serial_rw;
|
|
spinlock_t sc_pm_lock;
|
|
spinlock_t sc_pcu_lock;
|
|
struct mutex mutex;
|
|
struct work_struct paprd_work;
|
|
struct work_struct hw_reset_work;
|
|
struct completion paprd_complete;
|
|
wait_queue_head_t tx_wait;
|
|
|
|
#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
|
|
struct work_struct chanctx_work;
|
|
struct ath_gen_timer *p2p_ps_timer;
|
|
struct ath_vif *p2p_ps_vif;
|
|
struct ath_chanctx_sched sched;
|
|
struct ath_offchannel offchannel;
|
|
struct ath_chanctx *next_chan;
|
|
struct completion go_beacon;
|
|
struct timespec64 last_event_time;
|
|
#endif
|
|
|
|
unsigned long driver_data;
|
|
|
|
u8 gtt_cnt;
|
|
u32 intrstatus;
|
|
u16 ps_flags; /* PS_* */
|
|
bool ps_enabled;
|
|
bool ps_idle;
|
|
short nbcnvifs;
|
|
unsigned long ps_usecount;
|
|
|
|
struct ath_rx rx;
|
|
struct ath_tx tx;
|
|
struct ath_beacon beacon;
|
|
|
|
struct cfg80211_chan_def cur_chandef;
|
|
struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
|
|
struct ath_chanctx *cur_chan;
|
|
spinlock_t chan_lock;
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
bool led_registered;
|
|
char led_name[32];
|
|
struct led_classdev led_cdev;
|
|
#endif
|
|
|
|
#ifdef CONFIG_ATH9K_DEBUGFS
|
|
struct ath9k_debug debug;
|
|
#endif
|
|
struct delayed_work hw_check_work;
|
|
struct delayed_work hw_pll_work;
|
|
struct timer_list sleep_timer;
|
|
|
|
#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
|
|
struct ath_btcoex btcoex;
|
|
struct ath_mci_coex mci_coex;
|
|
struct work_struct mci_work;
|
|
#endif
|
|
|
|
struct ath_descdma txsdma;
|
|
|
|
struct ath_ant_comb ant_comb;
|
|
u8 ant_tx, ant_rx;
|
|
struct dfs_pattern_detector *dfs_detector;
|
|
u64 dfs_prev_pulse_ts;
|
|
u32 wow_enabled;
|
|
|
|
struct ath_spec_scan_priv spec_priv;
|
|
|
|
struct ieee80211_vif *tx99_vif;
|
|
struct sk_buff *tx99_skb;
|
|
bool tx99_state;
|
|
s16 tx99_power;
|
|
|
|
#ifdef CONFIG_ATH9K_WOW
|
|
u32 wow_intr_before_sleep;
|
|
bool force_wow;
|
|
#endif
|
|
|
|
#ifdef CONFIG_ATH9K_HWRNG
|
|
struct hwrng rng_ops;
|
|
u32 rng_last;
|
|
char rng_name[sizeof("ath9k_65535")];
|
|
#endif
|
|
};
|
|
|
|
/********/
|
|
/* TX99 */
|
|
/********/
|
|
|
|
#ifdef CONFIG_ATH9K_TX99
|
|
void ath9k_tx99_init_debug(struct ath_softc *sc);
|
|
int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
|
|
struct ath_tx_control *txctl);
|
|
#else
|
|
static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
|
|
{
|
|
}
|
|
static inline int ath9k_tx99_send(struct ath_softc *sc,
|
|
struct sk_buff *skb,
|
|
struct ath_tx_control *txctl)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_ATH9K_TX99 */
|
|
|
|
/***************************/
|
|
/* Random Number Generator */
|
|
/***************************/
|
|
#ifdef CONFIG_ATH9K_HWRNG
|
|
void ath9k_rng_start(struct ath_softc *sc);
|
|
void ath9k_rng_stop(struct ath_softc *sc);
|
|
#else
|
|
static inline void ath9k_rng_start(struct ath_softc *sc)
|
|
{
|
|
}
|
|
|
|
static inline void ath9k_rng_stop(struct ath_softc *sc)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static inline void ath_read_cachesize(struct ath_common *common, int *csz)
|
|
{
|
|
common->bus_ops->read_cachesize(common, csz);
|
|
}
|
|
|
|
void ath9k_tasklet(struct tasklet_struct *t);
|
|
int ath_cabq_update(struct ath_softc *);
|
|
u8 ath9k_parse_mpdudensity(u8 mpdudensity);
|
|
irqreturn_t ath_isr(int irq, void *dev);
|
|
int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
|
|
void ath_cancel_work(struct ath_softc *sc);
|
|
void ath_restart_work(struct ath_softc *sc);
|
|
int ath9k_init_device(u16 devid, struct ath_softc *sc,
|
|
const struct ath_bus_ops *bus_ops);
|
|
void ath9k_deinit_device(struct ath_softc *sc);
|
|
void ath9k_reload_chainmask_settings(struct ath_softc *sc);
|
|
u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
|
|
void ath_start_rfkill_poll(struct ath_softc *sc);
|
|
void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
|
|
void ath9k_ps_wakeup(struct ath_softc *sc);
|
|
void ath9k_ps_restore(struct ath_softc *sc);
|
|
|
|
#ifdef CONFIG_ATH9K_PCI
|
|
int ath_pci_init(void);
|
|
void ath_pci_exit(void);
|
|
#else
|
|
static inline int ath_pci_init(void) { return 0; };
|
|
static inline void ath_pci_exit(void) {};
|
|
#endif
|
|
|
|
#ifdef CONFIG_ATH9K_AHB
|
|
int ath_ahb_init(void);
|
|
void ath_ahb_exit(void);
|
|
#else
|
|
static inline int ath_ahb_init(void) { return 0; };
|
|
static inline void ath_ahb_exit(void) {};
|
|
#endif
|
|
|
|
#endif /* ATH9K_H */
|