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* Copyright (c) 2010-2011 Atheros Communications Inc.
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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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* 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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#include <linux/etherdevice.h>
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#include <linux/rtnetlink.h>
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#include <linux/firmware.h>
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#include <linux/sched.h>
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#include <linux/circ_buf.h>
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#include <net/cfg80211.h>
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#define ATH6KL_MAX_RX_BUFFERS 16
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#define ATH6KL_BUFFER_SIZE 1664
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#define ATH6KL_MAX_AMSDU_RX_BUFFERS 4
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#define ATH6KL_AMSDU_REFILL_THRESHOLD 3
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#define ATH6KL_AMSDU_BUFFER_SIZE (WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH + 128)
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#define MAX_MSDU_SUBFRAME_PAYLOAD_LEN 1508
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#define MIN_MSDU_SUBFRAME_PAYLOAD_LEN 46
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#define USER_SAVEDKEYS_STAT_INIT 0
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#define USER_SAVEDKEYS_STAT_RUN 1
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#define ATH6KL_TX_TIMEOUT 10
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#define ATH6KL_MAX_ENDPOINTS 4
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#define MAX_NODE_NUM 15
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/* Extra bytes for htc header alignment */
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#define ATH6KL_HTC_ALIGN_BYTES 3
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/* MAX_HI_COOKIE_NUM are reserved for high priority traffic */
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#define MAX_DEF_COOKIE_NUM 180
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#define MAX_HI_COOKIE_NUM 18 /* 10% of MAX_COOKIE_NUM */
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#define MAX_COOKIE_NUM (MAX_DEF_COOKIE_NUM + MAX_HI_COOKIE_NUM)
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#define MAX_DEFAULT_SEND_QUEUE_DEPTH (MAX_DEF_COOKIE_NUM / WMM_NUM_AC)
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#define DISCON_TIMER_INTVAL 10000 /* in msec */
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#define A_DEFAULT_LISTEN_INTERVAL 100
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#define A_MAX_WOW_LISTEN_INTERVAL 1000
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/* includes also the null byte */
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#define ATH6KL_FIRMWARE_MAGIC "QCA-ATH6KL"
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enum ath6kl_fw_ie_type {
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ATH6KL_FW_IE_FW_VERSION = 0,
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ATH6KL_FW_IE_TIMESTAMP = 1,
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ATH6KL_FW_IE_OTP_IMAGE = 2,
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ATH6KL_FW_IE_FW_IMAGE = 3,
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ATH6KL_FW_IE_PATCH_IMAGE = 4,
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ATH6KL_FW_IE_RESERVED_RAM_SIZE = 5,
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ATH6KL_FW_IE_CAPABILITIES = 6,
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ATH6KL_FW_IE_PATCH_ADDR = 7,
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enum ath6kl_fw_capability {
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ATH6KL_FW_CAPABILITY_HOST_P2P = 0,
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/* this needs to be last */
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ATH6KL_FW_CAPABILITY_MAX,
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#define ATH6KL_CAPABILITY_LEN (ALIGN(ATH6KL_FW_CAPABILITY_MAX, 32) / 32)
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/* AR6003 1.0 definitions */
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#define AR6003_REV1_VERSION 0x300002ba
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/* AR6003 2.0 definitions */
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#define AR6003_REV2_VERSION 0x30000384
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#define AR6003_REV2_PATCH_DOWNLOAD_ADDRESS 0x57e910
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#define AR6003_REV2_OTP_FILE "ath6k/AR6003/hw2.0/otp.bin.z77"
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#define AR6003_REV2_FIRMWARE_FILE "ath6k/AR6003/hw2.0/athwlan.bin.z77"
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#define AR6003_REV2_TCMD_FIRMWARE_FILE "ath6k/AR6003/hw2.0/athtcmd_ram.bin"
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#define AR6003_REV2_PATCH_FILE "ath6k/AR6003/hw2.0/data.patch.bin"
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#define AR6003_REV2_FIRMWARE_2_FILE "ath6k/AR6003/hw2.0/fw-2.bin"
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#define AR6003_REV2_BOARD_DATA_FILE "ath6k/AR6003/hw2.0/bdata.bin"
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#define AR6003_REV2_DEFAULT_BOARD_DATA_FILE "ath6k/AR6003/hw2.0/bdata.SD31.bin"
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/* AR6003 3.0 definitions */
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#define AR6003_REV3_VERSION 0x30000582
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#define AR6003_REV3_OTP_FILE "ath6k/AR6003/hw2.1.1/otp.bin"
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#define AR6003_REV3_FIRMWARE_FILE "ath6k/AR6003/hw2.1.1/athwlan.bin"
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#define AR6003_REV3_TCMD_FIRMWARE_FILE "ath6k/AR6003/hw2.1.1/athtcmd_ram.bin"
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#define AR6003_REV3_PATCH_FILE "ath6k/AR6003/hw2.1.1/data.patch.bin"
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#define AR6003_REV3_FIRMWARE_2_FILE "ath6k/AR6003/hw2.1.1/fw-2.bin"
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#define AR6003_REV3_BOARD_DATA_FILE "ath6k/AR6003/hw2.1.1/bdata.bin"
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#define AR6003_REV3_DEFAULT_BOARD_DATA_FILE \
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"ath6k/AR6003/hw2.1.1/bdata.SD31.bin"
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/* AR6004 1.0 definitions */
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#define AR6004_REV1_VERSION 0x30000623
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#define AR6004_REV1_FIRMWARE_FILE "ath6k/AR6004/hw6.1/fw.ram.bin"
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#define AR6004_REV1_FIRMWARE_2_FILE "ath6k/AR6004/hw6.1/fw-2.bin"
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#define AR6004_REV1_BOARD_DATA_FILE "ath6k/AR6004/hw6.1/bdata.bin"
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#define AR6004_REV1_DEFAULT_BOARD_DATA_FILE "ath6k/AR6004/hw6.1/bdata.DB132.bin"
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#define AR6004_REV1_EPPING_FIRMWARE_FILE "ath6k/AR6004/hw6.1/endpointping.bin"
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/* Per STA data, used in AP mode */
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#define STA_PS_AWAKE BIT(0)
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#define STA_PS_SLEEP BIT(1)
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#define STA_PS_POLLED BIT(2)
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/* HTC TX packet tagging definitions */
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#define ATH6KL_CONTROL_PKT_TAG HTC_TX_PACKET_TAG_USER_DEFINED
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#define ATH6KL_DATA_PKT_TAG (ATH6KL_CONTROL_PKT_TAG + 1)
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#define AR6003_CUST_DATA_SIZE 16
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#define AGGR_WIN_IDX(x, y) ((x) % (y))
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#define AGGR_INCR_IDX(x, y) AGGR_WIN_IDX(((x) + 1), (y))
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#define AGGR_DCRM_IDX(x, y) AGGR_WIN_IDX(((x) - 1), (y))
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#define ATH6KL_MAX_SEQ_NO 0xFFF
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#define ATH6KL_NEXT_SEQ_NO(x) (((x) + 1) & ATH6KL_MAX_SEQ_NO)
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#define NUM_OF_TIDS 8
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#define AGGR_SZ_DEFAULT 8
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#define AGGR_WIN_SZ_MIN 2
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#define AGGR_WIN_SZ_MAX 8
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#define TID_WINDOW_SZ(_x) ((_x) << 1)
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#define AGGR_NUM_OF_FREE_NETBUFS 16
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#define AGGR_RX_TIMEOUT 400 /* in ms */
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#define WMI_TIMEOUT (2 * HZ)
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#define MBOX_YIELD_LIMIT 99
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/* configuration lags */
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* ATH6KL_CONF_IGNORE_ERP_BARKER: Ignore the barker premable in
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* ERP IE of beacon to determine the short premable support when
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* sending (Re)Assoc req.
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* ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN: Don't send the power
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* module state transition failure events which happen during
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#define ATH6KL_CONF_IGNORE_ERP_BARKER BIT(0)
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#define ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN BIT(1)
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#define ATH6KL_CONF_ENABLE_11N BIT(2)
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#define ATH6KL_CONF_ENABLE_TX_BURST BIT(3)
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enum wlan_low_pwr_state {
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WLAN_POWER_STATE_CUT_PWR,
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WLAN_POWER_STATE_DEEP_SLEEP,
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struct skb_hold_q *hold_q;
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struct sk_buff_head q;
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struct timer_list timer;
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struct net_device *dev;
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struct rxtid rx_tid[NUM_OF_TIDS];
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struct sk_buff_head free_q;
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struct rxtid_stats stat[NUM_OF_TIDS];
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struct ath6kl_wep_key {
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#define ATH6KL_KEY_SEQ_LEN 8
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u8 key[WLAN_MAX_KEY_LEN];
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u8 seq[ATH6KL_KEY_SEQ_LEN];
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struct ath6kl_node_mapping {
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u8 mac_addr[ETH_ALEN];
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struct ath6kl_cookie {
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struct htc_packet htc_pkt;
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struct ath6kl_cookie *arc_list_next;
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u8 wpa_ie[ATH6KL_MAX_IE];
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struct sk_buff_head psq;
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struct ath6kl_version {
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struct target_stats {
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u64 tx_rts_success_cnt;
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u64 tx_pkt_per_ac[4];
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u64 tx_mult_retry_cnt;
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u64 rx_key_cache_miss;
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u64 tkip_local_mic_fail;
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u64 tkip_cnter_measures_invoked;
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u64 pwr_save_fail_cnt;
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u16 wow_evt_discarded;
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s16 noise_floor_calib;
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s16 cs_ave_beacon_rssi;
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u8 cs_ave_beacon_snr;
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u8 cs_last_roam_msec;
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u8 wow_host_pkt_wakeups;
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u8 wow_host_evt_wakeups;
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struct ath6kl_mbox_info {
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* 802.11i defines an extended IV for use with non-WEP ciphers.
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* When the EXTIV bit is set in the key id byte an additional
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* 4 bytes immediately follow the IV for TKIP. For CCMP the
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* EXTIV bit is likewise set but the 8 bytes represent the
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* CCMP header rather than IV+extended-IV.
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#define ATH6KL_KEYBUF_SIZE 16
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#define ATH6KL_MICBUF_SIZE (8+8) /* space for both tx and rx */
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#define ATH6KL_KEY_XMIT 0x01
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#define ATH6KL_KEY_RECV 0x02
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#define ATH6KL_KEY_DEFAULT 0x80 /* default xmit key */
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/* Initial group key for AP mode */
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struct ath6kl_req_key {
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u8 key[WLAN_MAX_KEY_LEN];
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#define WMI_ENABLED 0
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#define STATS_UPDATE_PEND 3
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#define CONNECT_PEND 4
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#define WMM_ENABLED 5
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#define NETQ_STOPPED 6
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#define WMI_CTRL_EP_FULL 7
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#define DTIM_EXPIRED 8
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#define DESTROY_IN_PROGRESS 9
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#define NETDEV_REGISTERED 10
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#define WLAN_ENABLED 12
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#define CLEAR_BSSFILTER_ON_BEACON 14
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#define DTIM_PERIOD_AVAIL 15
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struct net_device *net_dev;
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struct ath6kl_bmi bmi;
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const struct ath6kl_hif_ops *hif_ops;
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int tx_pending[ENDPOINT_MAX];
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int total_tx_data_pend;
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struct htc_target *htc_target;
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struct semaphore sem;
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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u8 prwise_crypto_len;
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struct ath6kl_wep_key wep_key_list[WMI_MAX_KEY_INDEX + 1];
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u8 req_bssid[ETH_ALEN];
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u8 lrssi_roam_threshold;
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struct ath6kl_version version;
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struct net_device_stats net_stats;
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struct target_stats target_stats;
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struct ath6kl_node_mapping node_map[MAX_NODE_NUM];
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struct ath6kl_cookie *cookie_list;
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enum htc_endpoint_id ac2ep_map[WMM_NUM_AC];
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bool ac_stream_active[WMM_NUM_AC];
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u8 ac_stream_pri_map[WMM_NUM_AC];
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u8 hiac_stream_active_pri;
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u8 ep2ac_map[ENDPOINT_MAX];
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enum htc_endpoint_id ctrl_ep;
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struct htc_credit_state_info credit_state_info;
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u32 connect_ctrl_flags;
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struct ath6kl_sta sta_list[AP_MAX_NUM_STA];
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struct ath6kl_req_key ap_mode_bkey;
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struct sk_buff_head mcastpsq;
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spinlock_t mcastpsq_lock;
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struct aggr_info *aggr_cntxt;
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struct wmi_ap_mode_stat ap_stats;
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u8 ap_country_code[3];
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struct list_head amsdu_rx_buffer_queue;
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struct timer_list disconnect_timer;
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struct wireless_dev *wdev;
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struct cfg80211_scan_request *scan_req;
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struct ath6kl_key keys[WMI_MAX_KEY_INDEX + 1];
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enum sme_state sme_state;
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enum wlan_low_pwr_state wlan_pwr_state;
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struct wmi_scan_params_cmd sc_params;
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#define AR_MCAST_FILTER_MAC_ADDR_SIZE 4
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size_t rx_report_len;
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u32 dataset_patch_addr;
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u32 app_start_override_addr;
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u32 board_ext_data_addr;
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u32 reserved_ram_size;
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wait_queue_head_t event_wq;
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struct ath6kl_mbox_info mbox_info;
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struct ath6kl_cookie cookie_mem[MAX_COOKIE_NUM];
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unsigned long fw_capabilities[ATH6KL_CAPABILITY_LEN];
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struct workqueue_struct *ath6kl_wq;
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struct dentry *debugfs_phy;
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bool probe_req_report;
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u16 assoc_bss_beacon_int;
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u8 assoc_bss_dtim_period;
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#ifdef CONFIG_ATH6KL_DEBUG
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struct circ_buf fwlog_buf;
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spinlock_t fwlog_lock;
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unsigned int dbgfs_diag_reg;
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u32 diag_reg_addr_wr;
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unsigned int invalid_rate;
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#endif /* CONFIG_ATH6KL_DEBUG */
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static inline void *ath6kl_priv(struct net_device *dev)
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return wdev_priv(dev->ieee80211_ptr);
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static inline void ath6kl_deposit_credit_to_ep(struct htc_credit_state_info
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struct htc_endpoint_credit_dist
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*ep_dist, int credits)
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ep_dist->credits += credits;
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ep_dist->cred_assngd += credits;
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cred_info->cur_free_credits -= credits;
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static inline u32 ath6kl_get_hi_item_addr(struct ath6kl *ar,
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if (ar->target_type == TARGET_TYPE_AR6003)
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addr = ATH6KL_AR6003_HI_START_ADDR + item_offset;
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else if (ar->target_type == TARGET_TYPE_AR6004)
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addr = ATH6KL_AR6004_HI_START_ADDR + item_offset;
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void ath6kl_destroy(struct net_device *dev, unsigned int unregister);
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int ath6kl_configure_target(struct ath6kl *ar);
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void ath6kl_detect_error(unsigned long ptr);
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void disconnect_timer_handler(unsigned long ptr);
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void init_netdev(struct net_device *dev);
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void ath6kl_cookie_init(struct ath6kl *ar);
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void ath6kl_cookie_cleanup(struct ath6kl *ar);
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void ath6kl_rx(struct htc_target *target, struct htc_packet *packet);
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void ath6kl_tx_complete(void *context, struct list_head *packet_queue);
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enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
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struct htc_packet *packet);
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void ath6kl_stop_txrx(struct ath6kl *ar);
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void ath6kl_cleanup_amsdu_rxbufs(struct ath6kl *ar);
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int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value);
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int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length);
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int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value);
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int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length);
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int ath6kl_read_fwlogs(struct ath6kl *ar);
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void ath6kl_init_profile_info(struct ath6kl *ar);
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void ath6kl_tx_data_cleanup(struct ath6kl *ar);
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void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile,
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struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar);
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void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie);
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int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev);
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struct aggr_info *aggr_init(struct net_device *dev);
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void ath6kl_rx_refill(struct htc_target *target,
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enum htc_endpoint_id endpoint);
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void ath6kl_refill_amsdu_rxbufs(struct ath6kl *ar, int count);
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struct htc_packet *ath6kl_alloc_amsdu_rxbuf(struct htc_target *target,
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enum htc_endpoint_id endpoint,
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void aggr_module_destroy(struct aggr_info *aggr_info);
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void aggr_reset_state(struct aggr_info *aggr_info);
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struct ath6kl_sta *ath6kl_find_sta(struct ath6kl *ar, u8 * node_addr);
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struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid);
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void ath6kl_ready_event(void *devt, u8 * datap, u32 sw_ver, u32 abi_ver);
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int ath6kl_control_tx(void *devt, struct sk_buff *skb,
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enum htc_endpoint_id eid);
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void ath6kl_connect_event(struct ath6kl *ar, u16 channel,
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u8 *bssid, u16 listen_int,
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u16 beacon_int, enum network_type net_type,
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u8 beacon_ie_len, u8 assoc_req_len,
611
u8 assoc_resp_len, u8 *assoc_info);
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void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel);
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void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr,
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u8 keymgmt, u8 ucipher, u8 auth,
615
u8 assoc_req_len, u8 *assoc_info);
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void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason,
617
u8 *bssid, u8 assoc_resp_len,
618
u8 *assoc_info, u16 prot_reason_status);
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void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast);
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void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr);
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void ath6kl_scan_complete_evt(struct ath6kl *ar, int status);
622
void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len);
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void ath6kl_indicate_tx_activity(void *devt, u8 traffic_class, bool active);
624
enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac);
626
void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid);
628
void ath6kl_dtimexpiry_event(struct ath6kl *ar);
629
void ath6kl_disconnect(struct ath6kl *ar);
630
void ath6kl_deep_sleep_enable(struct ath6kl *ar);
631
void aggr_recv_delba_req_evt(struct ath6kl *ar, u8 tid);
632
void aggr_recv_addba_req_evt(struct ath6kl *ar, u8 tid, u16 seq_no,
634
void ath6kl_wakeup_event(void *dev);
635
void ath6kl_target_failure(struct ath6kl *ar);