/*
* Copyright (c) 2015 South Silicon Valley Microelectronics Inc.
* Copyright (c) 2015 iComm Corporation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
#ifndef _AMPDU_H_
#define _AMPDU_H_
#include
#include
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
#include "linux_2_6_35.h"
#endif
#define Enable_ampdu_debug_log (0)
#define Enable_AMPDU_Live_Time (0)
#define Enable_HW_AUTO_CRC_32 (1)
#define Enable_AMPDU_Rx (1)
#define Enable_AMPDU_Tx (1)
#define Enable_AMPDU_FW_Retry (1)
#define Enable_AMPDU_delay_work (1)
#define USE_FLUSH_RETRY
#define USE_AMPDU_TX_STATUS_ARRAY
#define SSV_AMPDU_FLOW_CONTROL
#define AMPDU_CHECK_SKB_SEQNO
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0))
#define REPORT_TX_STATUS_DIRECTLY
#endif
#define SSV_AMPDU_aggr_num_max MAX_AGGR_NUM
#define SSV_AMPDU_seq_num_max (4096)
#define SSV_AMPDU_retry_counter_max (3)
#define SSV_AMPDU_tx_group_id_max (64)
#define SSV_AMPDU_MAX_SSN (4096)
#define SSV_AMPDU_BA_WINDOW_SIZE (64)
#define SSV_AMPDU_WINDOW_SIZE (64)
#define SSV_GET_MAX_AMPDU_SIZE(sh) (((sh)->tx_page_available/(sh)->ampdu_divider) << HW_MMU_PAGE_SHIFT)
#define SSV_AMPDU_FLOW_CONTROL_UPPER_BOUND (64)
#define SSV_AMPDU_FLOW_CONTROL_LOWER_BOUND (48)
#define SSV_AMPDU_timer_period (50)
#define SSV_AMPDU_TX_TIME_THRESHOLD (50)
#define SSV_AMPDU_MPDU_LIVE_TIME (SSV_AMPDU_retry_counter_max*8)
#define SSV_AMPDU_BA_TIME (50)
#define SSV_ILLEGAL_SN (0xffff)
#define AMPDU_BUFFER_SIZE (32*1024)
#define AMPDU_SIGNATURE (0x4E)
#define AMPDU_DELIMITER_LEN (4)
#define AMPDU_FCS_LEN (4)
#define AMPDU_RESERVED_LEN (3)
#define AMPDU_TX_NAV_MCS_567 (48)
#define SSV_SEQ_NUM_SHIFT (4)
#define SSV_RETRY_BIT_SHIFT (11)
#define IEEE80211_SEQ_SEQ_SHIFT (4)
#define IEEE80211_AMPDU_BA_LEN (34)
#define SSV6200_AMPDU_TRIGGER_INDEX 0
#define SSV_SN_STATUS_Release (0xaa)
#define SSV_SN_STATUS_Retry (0xbb)
#define SSV_SN_STATUS_Wait_BA (0xcc)
#define SSV_SN_STATUS_Discard (0xdd)
#define AMPDU_HCI_SEND_TAIL_WITH_FLOWCTRL (0)
#define AMPDU_HCI_SEND_HEAD_WITH_FLOWCTRL (1)
#define AMPDU_HCI_SEND_TAIL_WITHOUT_FLOWCTRL (2)
#define AMPDU_HCI_SEND_HEAD_WITHOUT_FLOWCTRL (3)
#define SSV_BAR_CTRL_ACK_POLICY_NORMAL (0x0000)
#define SSV_BAR_CTRL_CBMTID_COMPRESSED_BA (0x0004)
#define SSV_BAR_CTRL_TID_INFO_SHIFT (12)
#define AMPDU_STATE_START BIT(0)
#define AMPDU_STATE_OPERATION BIT(1)
#define AMPDU_STATE_STOP BIT(2)
typedef enum{
AMPDU_REKEY_PAUSE_STOP=0,
AMPDU_REKEY_PAUSE_START,
AMPDU_REKEY_PAUSE_ONGOING,
AMPDU_REKEY_PAUSE_DEFER,
AMPDU_REKEY_PAUSE_HWKEY_SYNC,
}AMPDU_REKEY_PAUSE_STATE;
#define SSV_a_minus_b_in_c(a,b,c) (((a)>=(b))?((a)-(b)):((c)-(b)+(a)))
#define SSV_AMPDU_SN_a_minus_b(a,b) (SSV_a_minus_b_in_c((a), (b), SSV_AMPDU_seq_num_max))
#define AMPDU_HCI_SEND(_sh,_sk,_q,_flag) (_sh)->hci.hci_ops->hci_tx((_sk), (_q), (_flag))
#define AMPDU_HCI_Q_EMPTY(_sh,_q) (_sh)->hci.hci_ops->hci_txq_empty((_q))
struct ampdu_hdr_st
{
u32 first_sn;
struct sk_buff_head mpdu_q;
u32 max_size;
u32 size;
struct AMPDU_TID_st *ampdu_tid;
u16 ssn[MAX_AGGR_NUM];
u16 mpdu_num;
struct fw_rc_retry_params rates[SSV62XX_TX_MAX_RATES];
struct ieee80211_sta *sta;
};
enum AMPDU_TX_STATUS_E {
AMPDU_ST_NON_AMPDU,
AMPDU_ST_AGGREGATED,
AMPDU_ST_SENT,
AMPDU_ST_RETRY,
AMPDU_ST_DROPPED,
AMPDU_ST_DONE,
};
typedef struct AMPDU_MIB_st
{
u32 ampdu_mib_mpdu_counter;
u32 ampdu_mib_retry_counter;
u32 ampdu_mib_ampdu_counter;
u32 ampdu_mib_aggr_retry_counter;
u32 ampdu_mib_bar_counter;
u32 ampdu_mib_discard_counter;
u32 ampdu_mib_total_BA_counter;
u32 ampdu_mib_BA_counter;
u32 ampdu_mib_pass_counter;
u32 ampdu_mib_dist[SSV_AMPDU_aggr_num_max + 1];
} AMPDU_MIB;
typedef struct AMPDU_TID_st
{
struct list_head list;
volatile unsigned long timestamp;
u32 tidno;
u16 ac;
struct ieee80211_sta *sta;
u16 ssv_baw_size;
u8 agg_num_max;
u8 state;
#ifdef AMPDU_CHECK_SKB_SEQNO
u32 last_seqno;
#endif
struct sk_buff_head ampdu_skb_tx_queue;
spinlock_t ampdu_skb_tx_queue_lock;
struct sk_buff_head retry_queue;
struct sk_buff_head release_queue;
struct sk_buff *aggr_pkts[SSV_AMPDU_BA_WINDOW_SIZE];
volatile u32 aggr_pkt_num;
volatile u16 ssv_baw_head;
spinlock_t pkt_array_lock;
#ifdef ENABLE_AGGREGATE_IN_TIME
struct sk_buff *cur_ampdu_pkt;
struct sk_buff_head early_aggr_ampdu_q;
u32 early_aggr_skb_num;
#endif
struct sk_buff_head ampdu_skb_wait_encry_queue;
u32 ampdu_mib_reset;
struct AMPDU_MIB_st mib;
#ifdef CONFIG_SSV6XXX_DEBUGFS
struct dentry *debugfs_dir;
struct sk_buff_head ba_q;
#endif
} AMPDU_TID, *p_AMPDU_TID;
typedef struct AMPDU_DELIMITER_st
{
u16 reserved:4;
u16 length:12;
u8 crc;
u8 signature;
} AMPDU_DELIMITER, *p_AMPDU_DELIMITER;
typedef struct AMPDU_BLOCKACK_st
{
u16 frame_control;
u16 duration;
u8 ra_addr[ETH_ALEN];
u8 ta_addr[ETH_ALEN];
u16 BA_ack_ploicy:1;
u16 multi_tid:1;
u16 compress_bitmap:1;
u16 reserved:9;
u16 tid_info:4;
u16 BA_fragment_sn:4;
u16 BA_ssn:12;
u32 BA_sn_bit_map[2];
} AMPDU_BLOCKACK, *p_AMPDU_BLOCKACK;
struct ssv_bar {
unsigned short frame_control;
unsigned short duration;
unsigned char ra[6];
unsigned char ta[6];
unsigned short control;
unsigned short start_seq_num;
} __packed;
#if Enable_ampdu_debug_log
#define ampdu_db_log(format, args...) printk("~~~ampdu [%s:%d] "format, __FUNCTION__, __LINE__, ##args)
#define ampdu_db_log_simple(format, args...) printk(format, ##args)
#else
#define ampdu_db_log(...) do {} while (0)
#define ampdu_db_log_simple(...) do {} while (0)
#endif
#if Enable_AMPDU_delay_work
void ssv6200_ampdu_delayed_work_callback_func(struct work_struct *work);
#else
void ssv6200_ampdu_timer_callback_func(unsigned long data);
#endif
void ssv6200_ampdu_init(struct ieee80211_hw *hw);
void ssv6200_ampdu_deinit(struct ieee80211_hw *hw);
void ssv6200_ampdu_release_skb(struct sk_buff *skb, struct ieee80211_hw *hw);
void ssv6200_ampdu_tx_start(u16 tid, struct ieee80211_sta *sta, struct ieee80211_hw *hw, u16 *ssn);
void ssv6200_ampdu_tx_operation(u16 tid, struct ieee80211_sta *sta, struct ieee80211_hw *hw, u8 buffer_size);
void ssv6200_ampdu_tx_stop(u16 tid, struct ieee80211_sta *sta, struct ieee80211_hw *hw);
bool ssv6200_ampdu_tx_handler(struct ieee80211_hw *hw, struct sk_buff *skb);
u32 ssv6xxx_ampdu_flush(struct ieee80211_hw *hw);
void ssv6200_ampdu_timeout_tx (struct ieee80211_hw *hw);
struct cfg_host_event;
void ssv6200_ampdu_no_BA_handler(struct ieee80211_hw *hw, struct sk_buff *skb);
void ssv6200_ampdu_BA_handler(struct ieee80211_hw *hw, struct sk_buff *skb);
void ssv6200_ampdu_tx_update_state(void *priv, struct ieee80211_sta *sta, struct sk_buff *skb);
void ssv6200_ampdu_tx_add_sta(struct ieee80211_hw *hw, struct ieee80211_sta *sta);
void ssv6xxx_ampdu_postprocess_BA (struct ieee80211_hw *hw);
void ssv6xxx_ampdu_check_timeout (struct ieee80211_hw *hw);
void ssv6xxx_ampdu_sent (struct ieee80211_hw *hw, struct sk_buff *ampdu);
extern void ssv6xxx_set_ampdu_rx_add_work(struct work_struct *work);
extern void ssv6xxx_set_ampdu_rx_del_work(struct work_struct *work);
void ssv6xxx_mib_reset (struct ieee80211_hw *hw);
ssize_t ssv6xxx_mib_dump (struct ieee80211_hw *hw, char *mib_str, ssize_t length);
#if 0
void tx_work(struct work_struct *work);
void retry_work(struct work_struct *work);
#endif
void encry_work(struct work_struct *work);
void sync_hw_key_work(struct work_struct *work);
#endif