forked from Minki/linux
0579119f7d
mac80211 interface interations functions have peculiar locking issues. This patch introduces internal (to ath10k) vif list that will be used for vif iteration purposes. kvalo: remove extra INIT_LIST_HEAD() Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
446 lines
9.9 KiB
C
446 lines
9.9 KiB
C
/*
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* Copyright (c) 2005-2011 Atheros Communications Inc.
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* Copyright (c) 2011-2013 Qualcomm Atheros, 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 _CORE_H_
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#define _CORE_H_
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#include <linux/completion.h>
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#include <linux/if_ether.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include "htt.h"
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#include "htc.h"
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#include "hw.h"
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#include "targaddrs.h"
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#include "wmi.h"
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#include "../ath.h"
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#include "../regd.h"
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#define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB)
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#define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
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#define WO(_f) ((_f##_OFFSET) >> 2)
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#define ATH10K_SCAN_ID 0
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#define WMI_READY_TIMEOUT (5 * HZ)
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#define ATH10K_FLUSH_TIMEOUT_HZ (5*HZ)
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#define ATH10K_NUM_CHANS 38
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/* Antenna noise floor */
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#define ATH10K_DEFAULT_NOISE_FLOOR -95
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#define ATH10K_MAX_NUM_MGMT_PENDING 16
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struct ath10k;
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struct ath10k_skb_cb {
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dma_addr_t paddr;
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bool is_mapped;
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bool is_aborted;
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u8 vdev_id;
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struct {
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u8 tid;
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bool is_offchan;
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u8 frag_len;
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u8 pad_len;
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} __packed htt;
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} __packed;
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static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
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{
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BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
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IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
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return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
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}
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static inline int ath10k_skb_map(struct device *dev, struct sk_buff *skb)
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{
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if (ATH10K_SKB_CB(skb)->is_mapped)
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return -EINVAL;
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ATH10K_SKB_CB(skb)->paddr = dma_map_single(dev, skb->data, skb->len,
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DMA_TO_DEVICE);
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if (unlikely(dma_mapping_error(dev, ATH10K_SKB_CB(skb)->paddr)))
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return -EIO;
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ATH10K_SKB_CB(skb)->is_mapped = true;
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return 0;
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}
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static inline int ath10k_skb_unmap(struct device *dev, struct sk_buff *skb)
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{
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if (!ATH10K_SKB_CB(skb)->is_mapped)
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return -EINVAL;
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dma_unmap_single(dev, ATH10K_SKB_CB(skb)->paddr, skb->len,
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DMA_TO_DEVICE);
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ATH10K_SKB_CB(skb)->is_mapped = false;
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return 0;
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}
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static inline u32 host_interest_item_address(u32 item_offset)
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{
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return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
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}
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struct ath10k_bmi {
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bool done_sent;
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};
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#define ATH10K_MAX_MEM_REQS 16
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struct ath10k_mem_chunk {
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void *vaddr;
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dma_addr_t paddr;
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u32 len;
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u32 req_id;
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};
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struct ath10k_wmi {
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enum ath10k_htc_ep_id eid;
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struct completion service_ready;
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struct completion unified_ready;
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wait_queue_head_t tx_credits_wq;
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struct wmi_cmd_map *cmd;
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struct wmi_vdev_param_map *vdev_param;
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struct wmi_pdev_param_map *pdev_param;
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u32 num_mem_chunks;
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struct ath10k_mem_chunk mem_chunks[ATH10K_MAX_MEM_REQS];
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};
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struct ath10k_peer_stat {
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u8 peer_macaddr[ETH_ALEN];
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u32 peer_rssi;
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u32 peer_tx_rate;
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};
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struct ath10k_target_stats {
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/* PDEV stats */
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s32 ch_noise_floor;
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u32 tx_frame_count;
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u32 rx_frame_count;
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u32 rx_clear_count;
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u32 cycle_count;
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u32 phy_err_count;
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u32 chan_tx_power;
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/* PDEV TX stats */
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s32 comp_queued;
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s32 comp_delivered;
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s32 msdu_enqued;
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s32 mpdu_enqued;
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s32 wmm_drop;
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s32 local_enqued;
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s32 local_freed;
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s32 hw_queued;
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s32 hw_reaped;
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s32 underrun;
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s32 tx_abort;
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s32 mpdus_requed;
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u32 tx_ko;
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u32 data_rc;
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u32 self_triggers;
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u32 sw_retry_failure;
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u32 illgl_rate_phy_err;
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u32 pdev_cont_xretry;
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u32 pdev_tx_timeout;
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u32 pdev_resets;
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u32 phy_underrun;
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u32 txop_ovf;
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/* PDEV RX stats */
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s32 mid_ppdu_route_change;
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s32 status_rcvd;
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s32 r0_frags;
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s32 r1_frags;
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s32 r2_frags;
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s32 r3_frags;
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s32 htt_msdus;
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s32 htt_mpdus;
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s32 loc_msdus;
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s32 loc_mpdus;
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s32 oversize_amsdu;
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s32 phy_errs;
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s32 phy_err_drop;
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s32 mpdu_errs;
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/* VDEV STATS */
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/* PEER STATS */
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u8 peers;
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struct ath10k_peer_stat peer_stat[TARGET_NUM_PEERS];
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/* TODO: Beacon filter stats */
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};
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#define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
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struct ath10k_peer {
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struct list_head list;
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int vdev_id;
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u8 addr[ETH_ALEN];
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DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
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struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
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};
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#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
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struct ath10k_vif {
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struct list_head list;
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u32 vdev_id;
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enum wmi_vdev_type vdev_type;
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enum wmi_vdev_subtype vdev_subtype;
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u32 beacon_interval;
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u32 dtim_period;
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struct sk_buff *beacon;
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struct ath10k *ar;
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struct ieee80211_vif *vif;
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struct work_struct wep_key_work;
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struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
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u8 def_wep_key_idx;
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u8 def_wep_key_newidx;
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u16 tx_seq_no;
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union {
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struct {
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u8 bssid[ETH_ALEN];
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u32 uapsd;
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} sta;
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struct {
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/* 127 stations; wmi limit */
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u8 tim_bitmap[16];
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u8 tim_len;
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u32 ssid_len;
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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bool hidden_ssid;
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/* P2P_IE with NoA attribute for P2P_GO case */
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u32 noa_len;
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u8 *noa_data;
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} ap;
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struct {
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u8 bssid[ETH_ALEN];
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} ibss;
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} u;
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};
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struct ath10k_vif_iter {
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u32 vdev_id;
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struct ath10k_vif *arvif;
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};
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struct ath10k_debug {
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struct dentry *debugfs_phy;
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struct ath10k_target_stats target_stats;
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u32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
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struct completion event_stats_compl;
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unsigned long htt_stats_mask;
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struct delayed_work htt_stats_dwork;
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};
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enum ath10k_state {
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ATH10K_STATE_OFF = 0,
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ATH10K_STATE_ON,
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/* When doing firmware recovery the device is first powered down.
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* mac80211 is supposed to call in to start() hook later on. It is
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* however possible that driver unloading and firmware crash overlap.
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* mac80211 can wait on conf_mutex in stop() while the device is
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* stopped in ath10k_core_restart() work holding conf_mutex. The state
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* RESTARTED means that the device is up and mac80211 has started hw
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* reconfiguration. Once mac80211 is done with the reconfiguration we
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* set the state to STATE_ON in restart_complete(). */
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ATH10K_STATE_RESTARTING,
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ATH10K_STATE_RESTARTED,
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/* The device has crashed while restarting hw. This state is like ON
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* but commands are blocked in HTC and -ECOMM response is given. This
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* prevents completion timeouts and makes the driver more responsive to
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* userspace commands. This is also prevents recursive recovery. */
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ATH10K_STATE_WEDGED,
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};
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enum ath10k_fw_features {
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/* wmi_mgmt_rx_hdr contains extra RSSI information */
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ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0,
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/* firmware from 10X branch */
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ATH10K_FW_FEATURE_WMI_10X = 1,
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/* firmware support tx frame management over WMI, otherwise it's HTT */
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ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX = 2,
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/* keep last */
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ATH10K_FW_FEATURE_COUNT,
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};
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struct ath10k {
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struct ath_common ath_common;
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struct ieee80211_hw *hw;
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struct device *dev;
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u8 mac_addr[ETH_ALEN];
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u32 chip_id;
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u32 target_version;
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u8 fw_version_major;
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u32 fw_version_minor;
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u16 fw_version_release;
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u16 fw_version_build;
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u32 phy_capability;
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u32 hw_min_tx_power;
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u32 hw_max_tx_power;
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u32 ht_cap_info;
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u32 vht_cap_info;
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u32 num_rf_chains;
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DECLARE_BITMAP(fw_features, ATH10K_FW_FEATURE_COUNT);
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struct targetdef *targetdef;
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struct hostdef *hostdef;
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bool p2p;
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struct {
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void *priv;
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const struct ath10k_hif_ops *ops;
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} hif;
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wait_queue_head_t event_queue;
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bool is_target_paused;
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struct ath10k_bmi bmi;
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struct ath10k_wmi wmi;
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struct ath10k_htc htc;
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struct ath10k_htt htt;
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struct ath10k_hw_params {
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u32 id;
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const char *name;
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u32 patch_load_addr;
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struct ath10k_hw_params_fw {
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const char *dir;
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const char *fw;
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const char *otp;
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const char *board;
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} fw;
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} hw_params;
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const struct firmware *board;
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const void *board_data;
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size_t board_len;
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const struct firmware *otp;
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const void *otp_data;
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size_t otp_len;
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const struct firmware *firmware;
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const void *firmware_data;
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size_t firmware_len;
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int fw_api;
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struct {
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struct completion started;
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struct completion completed;
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struct completion on_channel;
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struct timer_list timeout;
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bool is_roc;
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bool in_progress;
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bool aborting;
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int vdev_id;
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int roc_freq;
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} scan;
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struct {
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struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
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} mac;
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/* should never be NULL; needed for regular htt rx */
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struct ieee80211_channel *rx_channel;
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/* valid during scan; needed for mgmt rx during scan */
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struct ieee80211_channel *scan_channel;
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int free_vdev_map;
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int monitor_vdev_id;
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bool monitor_enabled;
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bool monitor_present;
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unsigned int filter_flags;
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struct wmi_pdev_set_wmm_params_arg wmm_params;
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struct completion install_key_done;
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struct completion vdev_setup_done;
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struct workqueue_struct *workqueue;
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/* prevents concurrent FW reconfiguration */
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struct mutex conf_mutex;
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/* protects shared structure data */
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spinlock_t data_lock;
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struct list_head arvifs;
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struct list_head peers;
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wait_queue_head_t peer_mapping_wq;
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struct work_struct offchan_tx_work;
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struct sk_buff_head offchan_tx_queue;
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struct completion offchan_tx_completed;
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struct sk_buff *offchan_tx_skb;
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struct work_struct wmi_mgmt_tx_work;
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struct sk_buff_head wmi_mgmt_tx_queue;
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enum ath10k_state state;
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struct work_struct restart_work;
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/* cycle count is reported twice for each visited channel during scan.
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* access protected by data_lock */
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u32 survey_last_rx_clear_count;
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u32 survey_last_cycle_count;
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struct survey_info survey[ATH10K_NUM_CHANS];
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#ifdef CONFIG_ATH10K_DEBUGFS
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struct ath10k_debug debug;
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#endif
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};
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struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
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const struct ath10k_hif_ops *hif_ops);
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void ath10k_core_destroy(struct ath10k *ar);
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int ath10k_core_start(struct ath10k *ar);
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void ath10k_core_stop(struct ath10k *ar);
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int ath10k_core_register(struct ath10k *ar, u32 chip_id);
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void ath10k_core_unregister(struct ath10k *ar);
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#endif /* _CORE_H_ */
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