//------------------------------------------------------------------------------
// Copyright (c) 2004-2010 Atheros Communications Inc.
// All rights reserved.
//
// 
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
//
//
// Author(s): ="Atheros"
//------------------------------------------------------------------------------

/*
 * This driver is a pseudo ethernet driver to access the Atheros AR6000
 * WLAN Device
 */

#include "ar6000_drv.h"
#include "cfg80211.h"
#include "htc.h"
#include "wmi_filter_linux.h"
#include "epping_test.h"
#include "wlan_config.h"
#include "ar3kconfig.h"
#include "ar6k_pal.h"
#include "AR6002/addrs.h"


/* LINUX_HACK_FUDGE_FACTOR -- this is used to provide a workaround for linux behavior.  When
 *  the meta data was added to the header it was found that linux did not correctly provide
 *  enough headroom.  However when more headroom was requested beyond what was truly needed
 *  Linux gave the requested headroom. Therefore to get the necessary headroom from Linux
 *  the driver requests more than is needed by the amount = LINUX_HACK_FUDGE_FACTOR */
#define LINUX_HACK_FUDGE_FACTOR 16
#define BDATA_BDADDR_OFFSET     28

u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
u8 null_mac[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0};

#ifdef DEBUG

#define  ATH_DEBUG_DBG_LOG       ATH_DEBUG_MAKE_MODULE_MASK(0)
#define  ATH_DEBUG_WLAN_CONNECT  ATH_DEBUG_MAKE_MODULE_MASK(1)
#define  ATH_DEBUG_WLAN_SCAN     ATH_DEBUG_MAKE_MODULE_MASK(2)
#define  ATH_DEBUG_WLAN_TX       ATH_DEBUG_MAKE_MODULE_MASK(3)
#define  ATH_DEBUG_WLAN_RX       ATH_DEBUG_MAKE_MODULE_MASK(4)
#define  ATH_DEBUG_HTC_RAW       ATH_DEBUG_MAKE_MODULE_MASK(5)
#define  ATH_DEBUG_HCI_BRIDGE    ATH_DEBUG_MAKE_MODULE_MASK(6)

static struct ath_debug_mask_description driver_debug_desc[] = {
    { ATH_DEBUG_DBG_LOG      , "Target Debug Logs"},
    { ATH_DEBUG_WLAN_CONNECT , "WLAN connect"},
    { ATH_DEBUG_WLAN_SCAN    , "WLAN scan"},
    { ATH_DEBUG_WLAN_TX      , "WLAN Tx"},
    { ATH_DEBUG_WLAN_RX      , "WLAN Rx"},
    { ATH_DEBUG_HTC_RAW      , "HTC Raw IF tracing"},
    { ATH_DEBUG_HCI_BRIDGE   , "HCI Bridge Setup"},
    { ATH_DEBUG_HCI_RECV     , "HCI Recv tracing"},
    { ATH_DEBUG_HCI_DUMP     , "HCI Packet dumps"},
};

ATH_DEBUG_INSTANTIATE_MODULE_VAR(driver,
                                 "driver",
                                 "Linux Driver Interface",
                                 ATH_DEBUG_MASK_DEFAULTS | ATH_DEBUG_WLAN_SCAN |
                                 ATH_DEBUG_HCI_BRIDGE,
                                 ATH_DEBUG_DESCRIPTION_COUNT(driver_debug_desc),
                                 driver_debug_desc);

#endif


#define IS_MAC_NULL(mac) (mac[0]==0 && mac[1]==0 && mac[2]==0 && mac[3]==0 && mac[4]==0 && mac[5]==0)
#define IS_MAC_BCAST(mac) (*mac==0xff)

#define DESCRIPTION "Driver to access the Atheros AR600x Device, version " __stringify(__VER_MAJOR_) "." __stringify(__VER_MINOR_) "." __stringify(__VER_PATCH_) "." __stringify(__BUILD_NUMBER_)

MODULE_AUTHOR("Atheros Communications, Inc.");
MODULE_DESCRIPTION(DESCRIPTION);
MODULE_LICENSE("Dual BSD/GPL");

#ifndef REORG_APTC_HEURISTICS
#undef ADAPTIVE_POWER_THROUGHPUT_CONTROL
#endif /* REORG_APTC_HEURISTICS */

#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
#define APTC_TRAFFIC_SAMPLING_INTERVAL     100  /* msec */
#define APTC_UPPER_THROUGHPUT_THRESHOLD    3000 /* Kbps */
#define APTC_LOWER_THROUGHPUT_THRESHOLD    2000 /* Kbps */

typedef struct aptc_traffic_record {
    bool timerScheduled;
    struct timeval samplingTS;
    unsigned long bytesReceived;
    unsigned long bytesTransmitted;
} APTC_TRAFFIC_RECORD;

A_TIMER aptcTimer;
APTC_TRAFFIC_RECORD aptcTR;
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */

#ifdef EXPORT_HCI_BRIDGE_INTERFACE
// callbacks registered by HCI transport driver
struct hci_transport_callbacks ar6kHciTransCallbacks = { NULL };
#endif

unsigned int processDot11Hdr = 0;

char ifname[IFNAMSIZ] = {0,};

int wlaninitmode = WLAN_INIT_MODE_DEFAULT;
static bool bypasswmi;
unsigned int debuglevel = 0;
int tspecCompliance = ATHEROS_COMPLIANCE;
unsigned int busspeedlow = 0;
unsigned int onebitmode = 0;
unsigned int skipflash = 0;
unsigned int wmitimeout = 2;
unsigned int wlanNodeCaching = 1;
unsigned int enableuartprint = ENABLEUARTPRINT_DEFAULT;
unsigned int logWmiRawMsgs = 0;
unsigned int enabletimerwar = 0;
unsigned int num_device = 1;
unsigned int regscanmode;
unsigned int fwmode = 1;
unsigned int mbox_yield_limit = 99;
unsigned int enablerssicompensation = 0;
int reduce_credit_dribble = 1 + HTC_CONNECT_FLAGS_THRESHOLD_LEVEL_ONE_HALF;
int allow_trace_signal = 0;
#ifdef CONFIG_HOST_TCMD_SUPPORT
unsigned int testmode =0;
#endif

unsigned int irqprocmode = HIF_DEVICE_IRQ_SYNC_ONLY;//HIF_DEVICE_IRQ_ASYNC_SYNC;
unsigned int panic_on_assert = 1;
unsigned int nohifscattersupport = NOHIFSCATTERSUPPORT_DEFAULT;

unsigned int setuphci = SETUPHCI_DEFAULT;
unsigned int loghci = 0;
unsigned int setupbtdev = SETUPBTDEV_DEFAULT;
#ifndef EXPORT_HCI_BRIDGE_INTERFACE
unsigned int ar3khcibaud = AR3KHCIBAUD_DEFAULT;
unsigned int hciuartscale = HCIUARTSCALE_DEFAULT;
unsigned int hciuartstep = HCIUARTSTEP_DEFAULT;
#endif
unsigned int csumOffload=0;
unsigned int csumOffloadTest=0;
unsigned int eppingtest=0;
unsigned int mac_addr_method;
unsigned int firmware_bridge;

module_param_string(ifname, ifname, sizeof(ifname), 0644);
module_param(wlaninitmode, int, 0644);
module_param(bypasswmi, bool, 0644);
module_param(debuglevel, uint, 0644);
module_param(tspecCompliance, int, 0644);
module_param(onebitmode, uint, 0644);
module_param(busspeedlow, uint, 0644);
module_param(skipflash, uint, 0644);
module_param(wmitimeout, uint, 0644);
module_param(wlanNodeCaching, uint, 0644);
module_param(logWmiRawMsgs, uint, 0644);
module_param(enableuartprint, uint, 0644);
module_param(enabletimerwar, uint, 0644);
module_param(fwmode, uint, 0644);
module_param(mbox_yield_limit, uint, 0644);
module_param(reduce_credit_dribble, int, 0644);
module_param(allow_trace_signal, int, 0644);
module_param(enablerssicompensation, uint, 0644);
module_param(processDot11Hdr, uint, 0644);
module_param(csumOffload, uint, 0644);
#ifdef CONFIG_HOST_TCMD_SUPPORT
module_param(testmode, uint, 0644);
#endif
module_param(irqprocmode, uint, 0644);
module_param(nohifscattersupport, uint, 0644);
module_param(panic_on_assert, uint, 0644);
module_param(setuphci, uint, 0644);
module_param(loghci, uint, 0644);
module_param(setupbtdev, uint, 0644);
#ifndef EXPORT_HCI_BRIDGE_INTERFACE
module_param(ar3khcibaud, uint, 0644);
module_param(hciuartscale, uint, 0644);
module_param(hciuartstep, uint, 0644);
#endif
module_param(eppingtest, uint, 0644);

/* in 2.6.10 and later this is now a pointer to a uint */
unsigned int _mboxnum = HTC_MAILBOX_NUM_MAX;
#define mboxnum &_mboxnum

#ifdef DEBUG
u32 g_dbg_flags = DBG_DEFAULTS;
unsigned int debugflags = 0;
int debugdriver = 0;
unsigned int debughtc = 0;
unsigned int debugbmi = 0;
unsigned int debughif = 0;
unsigned int txcreditsavailable[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int txcreditsconsumed[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int txcreditintrenable[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int txcreditintrenableaggregate[HTC_MAILBOX_NUM_MAX] = {0};
module_param(debugflags, uint, 0644);
module_param(debugdriver, int, 0644);
module_param(debughtc, uint, 0644);
module_param(debugbmi, uint, 0644);
module_param(debughif, uint, 0644);
module_param_array(txcreditsavailable, uint, mboxnum, 0644);
module_param_array(txcreditsconsumed, uint, mboxnum, 0644);
module_param_array(txcreditintrenable, uint, mboxnum, 0644);
module_param_array(txcreditintrenableaggregate, uint, mboxnum, 0644);

#endif /* DEBUG */

unsigned int resetok = 1;
unsigned int tx_attempt[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int tx_post[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int tx_complete[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int hifBusRequestNumMax = 40;
unsigned int war23838_disabled = 0;
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
unsigned int enableAPTCHeuristics = 1;
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
module_param_array(tx_attempt, uint, mboxnum, 0644);
module_param_array(tx_post, uint, mboxnum, 0644);
module_param_array(tx_complete, uint, mboxnum, 0644);
module_param(hifBusRequestNumMax, uint, 0644);
module_param(war23838_disabled, uint, 0644);
module_param(resetok, uint, 0644);
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
module_param(enableAPTCHeuristics, uint, 0644);
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */

#ifdef BLOCK_TX_PATH_FLAG
int blocktx = 0;
module_param(blocktx, int, 0644);
#endif /* BLOCK_TX_PATH_FLAG */

typedef struct user_rssi_compensation_t {
    u16 customerID;
    union {
    u16 a_enable;
    u16 bg_enable;
    u16 enable;
    };
    s16 bg_param_a;
    s16 bg_param_b;
    s16 a_param_a;
    s16 a_param_b;
    u32 reserved;
} USER_RSSI_CPENSATION;

static USER_RSSI_CPENSATION rssi_compensation_param;

static s16 rssi_compensation_table[96];

int reconnect_flag = 0;
static ar6k_pal_config_t ar6k_pal_config_g;

/* Function declarations */
static int ar6000_init_module(void);
static void ar6000_cleanup_module(void);

int ar6000_init(struct net_device *dev);
static int ar6000_open(struct net_device *dev);
static int ar6000_close(struct net_device *dev);
static void ar6000_init_control_info(struct ar6_softc *ar);
static int ar6000_data_tx(struct sk_buff *skb, struct net_device *dev);

void ar6000_destroy(struct net_device *dev, unsigned int unregister);
static void ar6000_detect_error(unsigned long ptr);
static void	ar6000_set_multicast_list(struct net_device *dev);
static struct net_device_stats *ar6000_get_stats(struct net_device *dev);

static void disconnect_timer_handler(unsigned long ptr);

void read_rssi_compensation_param(struct ar6_softc *ar);

/*
 * HTC service connection handlers
 */
static int ar6000_avail_ev(void *context, void *hif_handle);

static int ar6000_unavail_ev(void *context, void *hif_handle);

int ar6000_configure_target(struct ar6_softc *ar);

static void ar6000_target_failure(void *Instance, int Status);

static void ar6000_rx(void *Context, struct htc_packet *pPacket);

static void ar6000_rx_refill(void *Context,HTC_ENDPOINT_ID Endpoint);

static void ar6000_tx_complete(void *Context, struct htc_packet_queue *pPackets);

static HTC_SEND_FULL_ACTION ar6000_tx_queue_full(void *Context, struct htc_packet *pPacket);

static void ar6000_alloc_netbufs(A_NETBUF_QUEUE_T *q, u16 num);
static void ar6000_deliver_frames_to_nw_stack(void * dev, void *osbuf);
//static void ar6000_deliver_frames_to_bt_stack(void * dev, void *osbuf);

static struct htc_packet *ar6000_alloc_amsdu_rxbuf(void *Context, HTC_ENDPOINT_ID Endpoint, int Length);

static void ar6000_refill_amsdu_rxbufs(struct ar6_softc *ar, int Count);

static void ar6000_cleanup_amsdu_rxbufs(struct ar6_softc *ar);

static ssize_t
ar6000_sysfs_bmi_read(struct file *fp, struct kobject *kobj,
                      struct bin_attribute *bin_attr,
                      char *buf, loff_t pos, size_t count);

static ssize_t
ar6000_sysfs_bmi_write(struct file *fp, struct kobject *kobj,
                       struct bin_attribute *bin_attr,
                       char *buf, loff_t pos, size_t count);

static int
ar6000_sysfs_bmi_init(struct ar6_softc *ar);

void  ar6k_cleanup_hci_pal(struct ar6_softc *ar);

static void
ar6000_sysfs_bmi_deinit(struct ar6_softc *ar);

int
ar6000_sysfs_bmi_get_config(struct ar6_softc *ar, u32 mode);

/*
 * Static variables
 */

struct net_device *ar6000_devices[MAX_AR6000];
static int is_netdev_registered;
DECLARE_WAIT_QUEUE_HEAD(arEvent);
static void ar6000_cookie_init(struct ar6_softc *ar);
static void ar6000_cookie_cleanup(struct ar6_softc *ar);
static void ar6000_free_cookie(struct ar6_softc *ar, struct ar_cookie * cookie);
static struct ar_cookie *ar6000_alloc_cookie(struct ar6_softc *ar);

static int ar6000_reinstall_keys(struct ar6_softc *ar,u8 key_op_ctrl);

#ifdef CONFIG_AP_VIRTUAL_ADAPTER_SUPPORT
struct net_device *arApNetDev;
#endif /* CONFIG_AP_VIRTUAL_ADAPTER_SUPPORT */

static struct ar_cookie s_ar_cookie_mem[MAX_COOKIE_NUM];

#define HOST_INTEREST_ITEM_ADDRESS(ar, item) \
        (((ar)->arTargetType == TARGET_TYPE_AR6002) ? AR6002_HOST_INTEREST_ITEM_ADDRESS(item) : \
        (((ar)->arTargetType == TARGET_TYPE_AR6003) ? AR6003_HOST_INTEREST_ITEM_ADDRESS(item) : 0))


static struct net_device_ops ar6000_netdev_ops = {
    .ndo_init               = NULL,
    .ndo_open               = ar6000_open,
    .ndo_stop               = ar6000_close,
    .ndo_get_stats          = ar6000_get_stats,
    .ndo_start_xmit         = ar6000_data_tx,
    .ndo_set_multicast_list = ar6000_set_multicast_list,
};

/* Debug log support */

/*
 * Flag to govern whether the debug logs should be parsed in the kernel
 * or reported to the application.
 */
#define REPORT_DEBUG_LOGS_TO_APP

int
ar6000_set_host_app_area(struct ar6_softc *ar)
{
    u32 address, data;
    struct host_app_area_s host_app_area;

    /* Fetch the address of the host_app_area_s instance in the host interest area */
    address = TARG_VTOP(ar->arTargetType, HOST_INTEREST_ITEM_ADDRESS(ar, hi_app_host_interest));
    if (ar6000_ReadRegDiag(ar->arHifDevice, &address, &data) != 0) {
        return A_ERROR;
    }
    address = TARG_VTOP(ar->arTargetType, data);
    host_app_area.wmi_protocol_ver = WMI_PROTOCOL_VERSION;
    if (ar6000_WriteDataDiag(ar->arHifDevice, address,
                             (u8 *)&host_app_area,
                             sizeof(struct host_app_area_s)) != 0)
    {
        return A_ERROR;
    }

    return 0;
}

u32 dbglog_get_debug_hdr_ptr(struct ar6_softc *ar)
{
    u32 param;
    u32 address;
    int status;

    address = TARG_VTOP(ar->arTargetType, HOST_INTEREST_ITEM_ADDRESS(ar, hi_dbglog_hdr));
    if ((status = ar6000_ReadDataDiag(ar->arHifDevice, address,
                                      (u8 *)&param, 4)) != 0)
    {
        param = 0;
    }

    return param;
}

/*
 * The dbglog module has been initialized. Its ok to access the relevant
 * data stuctures over the diagnostic window.
 */
void
ar6000_dbglog_init_done(struct ar6_softc *ar)
{
    ar->dbglog_init_done = true;
}

u32 dbglog_get_debug_fragment(s8 *datap, u32 len, u32 limit)
{
    s32 *buffer;
    u32 count;
    u32 numargs;
    u32 length;
    u32 fraglen;

    count = fraglen = 0;
    buffer = (s32 *)datap;
    length = (limit >> 2);

    if (len <= limit) {
        fraglen = len;
    } else {
        while (count < length) {
            numargs = DBGLOG_GET_NUMARGS(buffer[count]);
            fraglen = (count << 2);
            count += numargs + 1;
        }
    }

    return fraglen;
}

void
dbglog_parse_debug_logs(s8 *datap, u32 len)
{
    s32 *buffer;
    u32 count;
    u32 timestamp;
    u32 debugid;
    u32 moduleid;
    u32 numargs;
    u32 length;

    count = 0;
    buffer = (s32 *)datap;
    length = (len >> 2);
    while (count < length) {
        debugid = DBGLOG_GET_DBGID(buffer[count]);
        moduleid = DBGLOG_GET_MODULEID(buffer[count]);
        numargs = DBGLOG_GET_NUMARGS(buffer[count]);
        timestamp = DBGLOG_GET_TIMESTAMP(buffer[count]);
        switch (numargs) {
            case 0:
            AR_DEBUG_PRINTF(ATH_DEBUG_DBG_LOG,("%d %d (%d)\n", moduleid, debugid, timestamp));
            break;

            case 1:
            AR_DEBUG_PRINTF(ATH_DEBUG_DBG_LOG,("%d %d (%d): 0x%x\n", moduleid, debugid,
                            timestamp, buffer[count+1]));
            break;

            case 2:
            AR_DEBUG_PRINTF(ATH_DEBUG_DBG_LOG,("%d %d (%d): 0x%x, 0x%x\n", moduleid, debugid,
                            timestamp, buffer[count+1], buffer[count+2]));
            break;

            default:
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Invalid args: %d\n", numargs));
        }
        count += numargs + 1;
    }
}

int
ar6000_dbglog_get_debug_logs(struct ar6_softc *ar)
{
    u32 data[8]; /* Should be able to accommodate struct dbglog_buf_s */
    u32 address;
    u32 length;
    u32 dropped;
    u32 firstbuf;
    u32 debug_hdr_ptr;

    if (!ar->dbglog_init_done) return A_ERROR;


    AR6000_SPIN_LOCK(&ar->arLock, 0);

    if (ar->dbgLogFetchInProgress) {
        AR6000_SPIN_UNLOCK(&ar->arLock, 0);
        return A_EBUSY;
    }

        /* block out others */
    ar->dbgLogFetchInProgress = true;

    AR6000_SPIN_UNLOCK(&ar->arLock, 0);

    debug_hdr_ptr = dbglog_get_debug_hdr_ptr(ar);
    printk("debug_hdr_ptr: 0x%x\n", debug_hdr_ptr);

    /* Get the contents of the ring buffer */
    if (debug_hdr_ptr) {
        address = TARG_VTOP(ar->arTargetType, debug_hdr_ptr);
        length = 4 /* sizeof(dbuf) */ + 4 /* sizeof(dropped) */;
        A_MEMZERO(data, sizeof(data));
        ar6000_ReadDataDiag(ar->arHifDevice, address, (u8 *)data, length);
        address = TARG_VTOP(ar->arTargetType, data[0] /* dbuf */);
        firstbuf = address;
        dropped = data[1]; /* dropped */
        length = 4 /* sizeof(next) */ + 4 /* sizeof(buffer) */ + 4 /* sizeof(bufsize) */ + 4 /* sizeof(length) */ + 4 /* sizeof(count) */ + 4 /* sizeof(free) */;
        A_MEMZERO(data, sizeof(data));
        ar6000_ReadDataDiag(ar->arHifDevice, address, (u8 *)&data, length);

        do {
            address = TARG_VTOP(ar->arTargetType, data[1] /* buffer*/);
            length = data[3]; /* length */
            if ((length) && (length <= data[2] /* bufsize*/)) {
                /* Rewind the index if it is about to overrun the buffer */
                if (ar->log_cnt > (DBGLOG_HOST_LOG_BUFFER_SIZE - length)) {
                    ar->log_cnt = 0;
                }
                if(0 != ar6000_ReadDataDiag(ar->arHifDevice, address,
                                    (u8 *)&ar->log_buffer[ar->log_cnt], length))
                {
                    break;
                }
                ar6000_dbglog_event(ar, dropped, (s8 *)&ar->log_buffer[ar->log_cnt], length);
                ar->log_cnt += length;
            } else {
                AR_DEBUG_PRINTF(ATH_DEBUG_DBG_LOG,("Length: %d (Total size: %d)\n",
                                data[3], data[2]));
            }

            address = TARG_VTOP(ar->arTargetType, data[0] /* next */);
            length = 4 /* sizeof(next) */ + 4 /* sizeof(buffer) */ + 4 /* sizeof(bufsize) */ + 4 /* sizeof(length) */ + 4 /* sizeof(count) */ + 4 /* sizeof(free) */;
            A_MEMZERO(data, sizeof(data));
            if(0 != ar6000_ReadDataDiag(ar->arHifDevice, address,
                                (u8 *)&data, length))
            {
                break;
            }

        } while (address != firstbuf);
    }

    ar->dbgLogFetchInProgress = false;

    return 0;
}

void
ar6000_dbglog_event(struct ar6_softc *ar, u32 dropped,
                    s8 *buffer, u32 length)
{
#ifdef REPORT_DEBUG_LOGS_TO_APP
    #define MAX_WIRELESS_EVENT_SIZE 252
    /*
     * Break it up into chunks of MAX_WIRELESS_EVENT_SIZE bytes of messages.
     * There seems to be a limitation on the length of message that could be
     * transmitted to the user app via this mechanism.
     */
    u32 send, sent;

    sent = 0;
    send = dbglog_get_debug_fragment(&buffer[sent], length - sent,
                                     MAX_WIRELESS_EVENT_SIZE);
    while (send) {
        sent += send;
        send = dbglog_get_debug_fragment(&buffer[sent], length - sent,
                                         MAX_WIRELESS_EVENT_SIZE);
    }
#else
    AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Dropped logs: 0x%x\nDebug info length: %d\n",
                    dropped, length));

    /* Interpret the debug logs */
    dbglog_parse_debug_logs((s8 *)buffer, length);
#endif /* REPORT_DEBUG_LOGS_TO_APP */
}


static int __init
ar6000_init_module(void)
{
    static int probed = 0;
    int r;
    OSDRV_CALLBACKS osdrvCallbacks;

    a_module_debug_support_init();

#ifdef DEBUG
        /* check for debug mask overrides */
    if (debughtc != 0) {
        ATH_DEBUG_SET_DEBUG_MASK(htc,debughtc);
    }
    if (debugbmi != 0) {
        ATH_DEBUG_SET_DEBUG_MASK(bmi,debugbmi);
    }
    if (debughif != 0) {
        ATH_DEBUG_SET_DEBUG_MASK(hif,debughif);
    }
    if (debugdriver != 0) {
        ATH_DEBUG_SET_DEBUG_MASK(driver,debugdriver);
    }

#endif

    A_REGISTER_MODULE_DEBUG_INFO(driver);

    A_MEMZERO(&osdrvCallbacks,sizeof(osdrvCallbacks));
    osdrvCallbacks.deviceInsertedHandler = ar6000_avail_ev;
    osdrvCallbacks.deviceRemovedHandler = ar6000_unavail_ev;
#ifdef CONFIG_PM
    osdrvCallbacks.deviceSuspendHandler = ar6000_suspend_ev;
    osdrvCallbacks.deviceResumeHandler = ar6000_resume_ev;
    osdrvCallbacks.devicePowerChangeHandler = ar6000_power_change_ev;
#endif

#ifdef DEBUG
    /* Set the debug flags if specified at load time */
    if(debugflags != 0)
    {
        g_dbg_flags = debugflags;
    }
#endif

    if (probed) {
        return -ENODEV;
    }
    probed++;

#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
    memset(&aptcTR, 0, sizeof(APTC_TRAFFIC_RECORD));
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */

    r = HIFInit(&osdrvCallbacks);
    if (r)
        return r;

    return 0;
}

static void __exit
ar6000_cleanup_module(void)
{
    int i = 0;
    struct net_device *ar6000_netdev;

#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
    /* Delete the Adaptive Power Control timer */
    if (timer_pending(&aptcTimer)) {
        del_timer_sync(&aptcTimer);
    }
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */

    for (i=0; i < MAX_AR6000; i++) {
        if (ar6000_devices[i] != NULL) {
            ar6000_netdev = ar6000_devices[i];
            ar6000_devices[i] = NULL;
            ar6000_destroy(ar6000_netdev, 1);
        }
    }

    HIFShutDownDevice(NULL);

    a_module_debug_support_cleanup();

    AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("ar6000_cleanup: success\n"));
}

#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
void
aptcTimerHandler(unsigned long arg)
{
    u32 numbytes;
    u32 throughput;
    struct ar6_softc *ar;
    int status;

    ar = (struct ar6_softc *)arg;
    A_ASSERT(ar != NULL);
    A_ASSERT(!timer_pending(&aptcTimer));

    AR6000_SPIN_LOCK(&ar->arLock, 0);

    /* Get the number of bytes transferred */
    numbytes = aptcTR.bytesTransmitted + aptcTR.bytesReceived;
    aptcTR.bytesTransmitted = aptcTR.bytesReceived = 0;

    /* Calculate and decide based on throughput thresholds */
    throughput = ((numbytes * 8)/APTC_TRAFFIC_SAMPLING_INTERVAL); /* Kbps */
    if (throughput < APTC_LOWER_THROUGHPUT_THRESHOLD) {
        /* Enable Sleep and delete the timer */
        A_ASSERT(ar->arWmiReady == true);
        AR6000_SPIN_UNLOCK(&ar->arLock, 0);
        status = wmi_powermode_cmd(ar->arWmi, REC_POWER);
        AR6000_SPIN_LOCK(&ar->arLock, 0);
        A_ASSERT(status == 0);
        aptcTR.timerScheduled = false;
    } else {
        A_TIMEOUT_MS(&aptcTimer, APTC_TRAFFIC_SAMPLING_INTERVAL, 0);
    }

    AR6000_SPIN_UNLOCK(&ar->arLock, 0);
}
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */

static void
ar6000_alloc_netbufs(A_NETBUF_QUEUE_T *q, u16 num)
{
    void * osbuf;

    while(num) {
        if((osbuf = A_NETBUF_ALLOC(AR6000_BUFFER_SIZE))) {
            A_NETBUF_ENQUEUE(q, osbuf);
        } else {
            break;
        }
        num--;
    }

    if(num) {
        A_PRINTF("%s(), allocation of netbuf failed", __func__);
    }
}

static struct bin_attribute bmi_attr = {
    .attr = {.name = "bmi", .mode = 0600},
    .read = ar6000_sysfs_bmi_read,
    .write = ar6000_sysfs_bmi_write,
};

static ssize_t
ar6000_sysfs_bmi_read(struct file *fp, struct kobject *kobj,
                      struct bin_attribute *bin_attr,
                      char *buf, loff_t pos, size_t count)
{
    int index;
    struct ar6_softc *ar;
    struct hif_device_os_device_info   *osDevInfo;

    AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("BMI: Read %d bytes\n", (u32)count));
    for (index=0; index < MAX_AR6000; index++) {
        ar = (struct ar6_softc *)ar6k_priv(ar6000_devices[index]);
        osDevInfo = &ar->osDevInfo;
        if (kobj == (&(((struct device *)osDevInfo->pOSDevice)->kobj))) {
            break;
        }
    }

    if (index == MAX_AR6000) return 0;

    if ((BMIRawRead(ar->arHifDevice, (u8*)buf, count, true)) != 0) {
        return 0;
    }

    return count;
}

static ssize_t
ar6000_sysfs_bmi_write(struct file *fp, struct kobject *kobj,
                       struct bin_attribute *bin_attr,
                       char *buf, loff_t pos, size_t count)
{
    int index;
    struct ar6_softc *ar;
    struct hif_device_os_device_info   *osDevInfo;

    AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("BMI: Write %d bytes\n", (u32)count));
    for (index=0; index < MAX_AR6000; index++) {
        ar = (struct ar6_softc *)ar6k_priv(ar6000_devices[index]);
        osDevInfo = &ar->osDevInfo;
        if (kobj == (&(((struct device *)osDevInfo->pOSDevice)->kobj))) {
            break;
        }
    }

    if (index == MAX_AR6000) return 0;

    if ((BMIRawWrite(ar->arHifDevice, (u8*)buf, count)) != 0) {
        return 0;
    }

    return count;
}

static int
ar6000_sysfs_bmi_init(struct ar6_softc *ar)
{
    int status;

    AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("BMI: Creating sysfs entry\n"));
    A_MEMZERO(&ar->osDevInfo, sizeof(struct hif_device_os_device_info));

    /* Get the underlying OS device */
    status = HIFConfigureDevice(ar->arHifDevice,
                                HIF_DEVICE_GET_OS_DEVICE,
                                &ar->osDevInfo,
                                sizeof(struct hif_device_os_device_info));

    if (status) {
        AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("BMI: Failed to get OS device info from HIF\n"));
        return A_ERROR;
    }

    /* Create a bmi entry in the sysfs filesystem */
    if ((sysfs_create_bin_file(&(((struct device *)ar->osDevInfo.pOSDevice)->kobj), &bmi_attr)) < 0)
    {
        AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMI: Failed to create entry for bmi in sysfs filesystem\n"));
        return A_ERROR;
    }

    return 0;
}

static void
ar6000_sysfs_bmi_deinit(struct ar6_softc *ar)
{
    AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("BMI: Deleting sysfs entry\n"));

    sysfs_remove_bin_file(&(((struct device *)ar->osDevInfo.pOSDevice)->kobj), &bmi_attr);
}

#define bmifn(fn) do { \
    if ((fn) < 0) { \
        AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("BMI operation failed: %d\n", __LINE__)); \
        return A_ERROR; \
    } \
} while(0)

#ifdef SOFTMAC_FILE_USED
#define AR6002_MAC_ADDRESS_OFFSET     0x0A
#define AR6003_MAC_ADDRESS_OFFSET     0x16
static
void calculate_crc(u32 TargetType, u8 *eeprom_data)
{
    u16 *ptr_crc;
    u16 *ptr16_eeprom;
    u16 checksum;
    u32 i;
    u32 eeprom_size;

    if (TargetType == TARGET_TYPE_AR6001)
    {
        eeprom_size = 512;
        ptr_crc = (u16 *)eeprom_data;
    }
    else if (TargetType == TARGET_TYPE_AR6003)
    {
        eeprom_size = 1024;
        ptr_crc = (u16 *)((u8 *)eeprom_data + 0x04);
    }
    else
    {
        eeprom_size = 768;
        ptr_crc = (u16 *)((u8 *)eeprom_data + 0x04);
    }


    // Clear the crc
    *ptr_crc = 0;

    // Recalculate new CRC
    checksum = 0;
    ptr16_eeprom = (u16 *)eeprom_data;
    for (i = 0;i < eeprom_size; i += 2)
    {
        checksum = checksum ^ (*ptr16_eeprom);
        ptr16_eeprom++;
    }
    checksum = 0xFFFF ^ checksum;
    *ptr_crc = checksum;
}

static void 
ar6000_softmac_update(struct ar6_softc *ar, u8 *eeprom_data, size_t size)
{
    const char *source = "random generated";
    const struct firmware *softmac_entry;
    u8 *ptr_mac;
    switch (ar->arTargetType) {
    case TARGET_TYPE_AR6002:
        ptr_mac = (u8 *)((u8 *)eeprom_data + AR6002_MAC_ADDRESS_OFFSET);
        break;
    case TARGET_TYPE_AR6003:
        ptr_mac = (u8 *)((u8 *)eeprom_data + AR6003_MAC_ADDRESS_OFFSET);
        break;
    default:
	AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Invalid Target Type\n"));
        return;
    }
	printk(KERN_DEBUG "MAC from EEPROM %pM\n", ptr_mac);

    /* create a random MAC in case we cannot read file from system */
    ptr_mac[0] = 0;
    ptr_mac[1] = 0x03;
    ptr_mac[2] = 0x7F;
    ptr_mac[3] = random32() & 0xff; 
    ptr_mac[4] = random32() & 0xff; 
    ptr_mac[5] = random32() & 0xff; 
    if ((A_REQUEST_FIRMWARE(&softmac_entry, "softmac", ((struct device *)ar->osDevInfo.pOSDevice))) == 0)
    {
        char *macbuf = A_MALLOC_NOWAIT(softmac_entry->size+1);
        if (macbuf) {            
            unsigned int softmac[6];
            memcpy(macbuf, softmac_entry->data, softmac_entry->size);
            macbuf[softmac_entry->size] = '\0';
            if (sscanf(macbuf, "%02x:%02x:%02x:%02x:%02x:%02x", 
                        &softmac[0], &softmac[1], &softmac[2],
                        &softmac[3], &softmac[4], &softmac[5])==6) {
                int i;
                for (i=0; i<6; ++i) {
                    ptr_mac[i] = softmac[i] & 0xff;
                }
                source = "softmac file";
            }
            kfree(macbuf);
        }
        A_RELEASE_FIRMWARE(softmac_entry);
    }
	printk(KERN_DEBUG "MAC from %s %pM\n", source, ptr_mac);
   calculate_crc(ar->arTargetType, eeprom_data);
}
#endif /* SOFTMAC_FILE_USED */

static int
ar6000_transfer_bin_file(struct ar6_softc *ar, AR6K_BIN_FILE file, u32 address, bool compressed)
{
    int status;
    const char *filename;
    const struct firmware *fw_entry;
    u32 fw_entry_size;
    u8 **buf;
    size_t *buf_len;

    switch (file) {
        case AR6K_OTP_FILE:
		buf = &ar->fw_otp;
		buf_len = &ar->fw_otp_len;
            if (ar->arVersion.target_ver == AR6003_REV1_VERSION) {
                filename = AR6003_REV1_OTP_FILE;
            } else if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
                filename = AR6003_REV2_OTP_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV3_VERSION) {
                        filename = AR6003_REV3_OTP_FILE;
            } else {
                AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unknown firmware revision: %d\n", ar->arVersion.target_ver));
                return A_ERROR;
            }
            break;

        case AR6K_FIRMWARE_FILE:
		buf = &ar->fw;
		buf_len = &ar->fw_len;
            if (ar->arVersion.target_ver == AR6003_REV1_VERSION) {
                filename = AR6003_REV1_FIRMWARE_FILE;
            } else if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
                filename = AR6003_REV2_FIRMWARE_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV3_VERSION) {
                        filename = AR6003_REV3_FIRMWARE_FILE;
            } else {
                AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unknown firmware revision: %d\n", ar->arVersion.target_ver));
                return A_ERROR;
            }
            
            if (eppingtest) {
                bypasswmi = true;
                if (ar->arVersion.target_ver == AR6003_REV1_VERSION) {
                    filename = AR6003_REV1_EPPING_FIRMWARE_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
                    filename = AR6003_REV2_EPPING_FIRMWARE_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV3_VERSION) {
                        filename = AR6003_REV3_EPPING_FIRMWARE_FILE;
                } else {
                    AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("eppingtest : unsupported firmware revision: %d\n", 
                        ar->arVersion.target_ver));
                    return A_ERROR;
                }
                compressed = false;
            }
            
#ifdef CONFIG_HOST_TCMD_SUPPORT
            if(testmode) {
                if (ar->arVersion.target_ver == AR6003_REV1_VERSION) {
                    filename = AR6003_REV1_TCMD_FIRMWARE_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
                    filename = AR6003_REV2_TCMD_FIRMWARE_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV3_VERSION) {
                        filename = AR6003_REV3_TCMD_FIRMWARE_FILE;
                } else {
                    AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unknown firmware revision: %d\n", ar->arVersion.target_ver));
                    return A_ERROR;
                }
                compressed = false;
            }
#endif 
#ifdef HTC_RAW_INTERFACE
            if (!eppingtest && bypasswmi) {
                if (ar->arVersion.target_ver == AR6003_REV1_VERSION) {
                    filename = AR6003_REV1_ART_FIRMWARE_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
                    filename = AR6003_REV2_ART_FIRMWARE_FILE;
                } else {
                    AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unknown firmware revision: %d\n", ar->arVersion.target_ver));
                    return A_ERROR;
                }
                compressed = false;
            }
#endif 
            break;

        case AR6K_PATCH_FILE:
		buf = &ar->fw_patch;
		buf_len = &ar->fw_patch_len;
            if (ar->arVersion.target_ver == AR6003_REV1_VERSION) {
                filename = AR6003_REV1_PATCH_FILE;
            } else if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
                filename = AR6003_REV2_PATCH_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV3_VERSION) {
                        filename = AR6003_REV3_PATCH_FILE;
            } else {
                AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unknown firmware revision: %d\n", ar->arVersion.target_ver));
                return A_ERROR;
            }
            break;

        case AR6K_BOARD_DATA_FILE:
		buf = &ar->fw_data;
		buf_len = &ar->fw_data_len;
            if (ar->arVersion.target_ver == AR6003_REV1_VERSION) {
                filename = AR6003_REV1_BOARD_DATA_FILE;
            } else if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
                filename = AR6003_REV2_BOARD_DATA_FILE;
                } else if (ar->arVersion.target_ver == AR6003_REV3_VERSION) {
                        filename = AR6003_REV3_BOARD_DATA_FILE;
            } else {
                AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unknown firmware revision: %d\n", ar->arVersion.target_ver));
                return A_ERROR;
            }
            break;

        default:
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unknown file type: %d\n", file));
            return A_ERROR;
    }

    if (*buf == NULL) {
	    if ((A_REQUEST_FIRMWARE(&fw_entry, filename, ((struct device *)ar->osDevInfo.pOSDevice))) != 0) {
		    AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Failed to get %s\n", filename));
		    return A_ENOENT;
	    }

	    *buf = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
	    *buf_len = fw_entry->size;
	    A_RELEASE_FIRMWARE(fw_entry);
    }

#ifdef SOFTMAC_FILE_USED
    if (file==AR6K_BOARD_DATA_FILE && *buf_len) {
        ar6000_softmac_update(ar, *buf, *buf_len);
    }
#endif 


    fw_entry_size = *buf_len;

    /* Load extended board data for AR6003 */
    if ((file==AR6K_BOARD_DATA_FILE) && *buf) {
        u32 board_ext_address;
        u32 board_ext_data_size;
        u32 board_data_size;

        board_ext_data_size = (((ar)->arTargetType == TARGET_TYPE_AR6002) ? AR6002_BOARD_EXT_DATA_SZ : \
                               (((ar)->arTargetType == TARGET_TYPE_AR6003) ? AR6003_BOARD_EXT_DATA_SZ : 0));

        board_data_size = (((ar)->arTargetType == TARGET_TYPE_AR6002) ? AR6002_BOARD_DATA_SZ : \
                          (((ar)->arTargetType == TARGET_TYPE_AR6003) ? AR6003_BOARD_DATA_SZ : 0));
        
        /* Determine where in Target RAM to write Board Data */
        bmifn(BMIReadMemory(ar->arHifDevice, HOST_INTEREST_ITEM_ADDRESS(ar, hi_board_ext_data), (u8 *)&board_ext_address, 4));
        AR_DEBUG_PRINTF(ATH_DEBUG_INFO, ("Board extended Data download address: 0x%x\n", board_ext_address));

        /* check whether the target has allocated memory for extended board data and file contains extended board data */
        if ((board_ext_address) && (*buf_len == (board_data_size + board_ext_data_size))) {
            u32 param;

            status = BMIWriteMemory(ar->arHifDevice, board_ext_address, (u8 *)(*buf + board_data_size), board_ext_data_size);

            if (status) {
                AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("BMI operation failed: %d\n", __LINE__));
                return A_ERROR;
            }

            /* Record the fact that extended board Data IS initialized */
            param = (board_ext_data_size << 16) | 1;
            bmifn(BMIWriteMemory(ar->arHifDevice,
            HOST_INTEREST_ITEM_ADDRESS(ar, hi_board_ext_data_config),
				       (unsigned char *)&param, 4));
        }
        fw_entry_size = board_data_size;
    }

    if (compressed) {
        status = BMIFastDownload(ar->arHifDevice, address, *buf, fw_entry_size);
    } else {
        status = BMIWriteMemory(ar->arHifDevice, address, *buf, fw_entry_size);
    }

    if (status) {
        AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("BMI operation failed: %d\n", __LINE__));
        return A_ERROR;
    }

    return 0;
}

int
ar6000_update_bdaddr(struct ar6_softc *ar)
{

        if (setupbtdev != 0) {
            u32 address;

           if (BMIReadMemory(ar->arHifDevice,
		HOST_INTEREST_ITEM_ADDRESS(ar, hi_board_data), (u8 *)&address, 4) != 0)
           {
    	      	AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMIReadMemory for hi_board_data failed\n"));
           	return A_ERROR;
           }

           if (BMIReadMemory(ar->arHifDevice, address + BDATA_BDADDR_OFFSET, (u8 *)ar->bdaddr, 6) != 0)
           {
    	    	AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMIReadMemory for BD address failed\n"));
           	return A_ERROR;
           }
	   AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BDADDR 0x%x:0x%x:0x%x:0x%x:0x%x:0x%x\n", ar->bdaddr[0],
								ar->bdaddr[1], ar->bdaddr[2], ar->bdaddr[3],
								ar->bdaddr[4], ar->bdaddr[5]));
        }

return 0;
}

int
ar6000_sysfs_bmi_get_config(struct ar6_softc *ar, u32 mode)
{
    AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("BMI: Requesting device specific configuration\n"));

    if (mode == WLAN_INIT_MODE_UDEV) {
        char version[16];
        const struct firmware *fw_entry;

        /* Get config using udev through a script in user space */
        sprintf(version, "%2.2x", ar->arVersion.target_ver);
        if ((A_REQUEST_FIRMWARE(&fw_entry, version, ((struct device *)ar->osDevInfo.pOSDevice))) != 0)
        {
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("BMI: Failure to get configuration for target version: %s\n", version));
            return A_ERROR;
        }

        A_RELEASE_FIRMWARE(fw_entry);
    } else {
        /* The config is contained within the driver itself */
        int status;
        u32 param, options, sleep, address;

        /* Temporarily disable system sleep */
        address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
        bmifn(BMIReadSOCRegister(ar->arHifDevice, address, &param));
        options = param;
        param |= AR6K_OPTION_SLEEP_DISABLE;
        bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));

        address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
        bmifn(BMIReadSOCRegister(ar->arHifDevice, address, &param));
        sleep = param;
        param |= WLAN_SYSTEM_SLEEP_DISABLE_SET(1);
        bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));
        AR_DEBUG_PRINTF(ATH_DEBUG_INFO, ("old options: %d, old sleep: %d\n", options, sleep));

        if (ar->arTargetType == TARGET_TYPE_AR6003) {
            /* Program analog PLL register */
            bmifn(BMIWriteSOCRegister(ar->arHifDevice, ANALOG_INTF_BASE_ADDRESS + 0x284, 0xF9104001));
            /* Run at 80/88MHz by default */
            param = CPU_CLOCK_STANDARD_SET(1);
        } else {
            /* Run at 40/44MHz by default */
            param = CPU_CLOCK_STANDARD_SET(0);
        }
        address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
        bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));

        param = 0;
        if (ar->arTargetType == TARGET_TYPE_AR6002) {
            bmifn(BMIReadMemory(ar->arHifDevice, HOST_INTEREST_ITEM_ADDRESS(ar, hi_ext_clk_detected), (u8 *)&param, 4));
        }

        /* LPO_CAL.ENABLE = 1 if no external clk is detected */
        if (param != 1) {
            address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
            param = LPO_CAL_ENABLE_SET(1);
            bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));
        }

        /* Venus2.0: Lower SDIO pad drive strength,
         * temporary WAR to avoid SDIO CRC error */
        if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("AR6K: Temporary WAR to avoid SDIO CRC error\n"));
            param = 0x20;
            address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
            bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));

            address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
            bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));

            address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
            bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));

            address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
            bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));
        }

#ifdef FORCE_INTERNAL_CLOCK
        /* Ignore external clock, if any, and force use of internal clock */
        if (ar->arTargetType == TARGET_TYPE_AR6003) {
            /* hi_ext_clk_detected = 0 */
            param = 0;
            bmifn(BMIWriteMemory(ar->arHifDevice, HOST_INTEREST_ITEM_ADDRESS(ar, hi_ext_clk_detected), (u8 *)&param, 4));

            /* CLOCK_CONTROL &= ~LF_CLK32 */
            address = RTC_BASE_ADDRESS + CLOCK_CONTROL_ADDRESS;
            bmifn(BMIReadSOCRegister(ar->arHifDevice, address, &param));
            param &= (~CLOCK_CONTROL_LF_CLK32_SET(1));
            bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));
        }
#endif /* FORCE_INTERNAL_CLOCK */

        /* Transfer Board Data from Target EEPROM to Target RAM */
        if (ar->arTargetType == TARGET_TYPE_AR6003) {
            /* Determine where in Target RAM to write Board Data */
            bmifn(BMIReadMemory(ar->arHifDevice, HOST_INTEREST_ITEM_ADDRESS(ar, hi_board_data), (u8 *)&address, 4));
            AR_DEBUG_PRINTF(ATH_DEBUG_INFO, ("Board Data download address: 0x%x\n", address));

            /* Write EEPROM data to Target RAM */
            if ((ar6000_transfer_bin_file(ar, AR6K_BOARD_DATA_FILE, address, false)) != 0) {
                return A_ERROR;
            }

            /* Record the fact that Board Data IS initialized */
            param = 1;
            bmifn(BMIWriteMemory(ar->arHifDevice, HOST_INTEREST_ITEM_ADDRESS(ar, hi_board_data_initialized), (u8 *)&param, 4));

            /* Transfer One time Programmable data */
	    AR6K_APP_LOAD_ADDRESS(address, ar->arVersion.target_ver);
	    if (ar->arVersion.target_ver == AR6003_REV3_VERSION)
		  address = 0x1234;
            status = ar6000_transfer_bin_file(ar, AR6K_OTP_FILE, address, true);
            if (status == 0) {
                /* Execute the OTP code */
                param = 0;
                AR6K_APP_START_OVERRIDE_ADDRESS(address, ar->arVersion.target_ver);
                bmifn(BMIExecute(ar->arHifDevice, address, &param));
            } else if (status != A_ENOENT) {
                return A_ERROR;
            } 
        } else {
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Programming of board data for chip %d not supported\n", ar->arTargetType));
            return A_ERROR;
        }

        /* Download Target firmware */
        AR6K_APP_LOAD_ADDRESS(address, ar->arVersion.target_ver);
        if (ar->arVersion.target_ver == AR6003_REV3_VERSION)
                address = 0x1234;
        if ((ar6000_transfer_bin_file(ar, AR6K_FIRMWARE_FILE, address, true)) != 0) {
            return A_ERROR;
        }

        /* Set starting address for firmware */
        AR6K_APP_START_OVERRIDE_ADDRESS(address, ar->arVersion.target_ver);
        bmifn(BMISetAppStart(ar->arHifDevice, address));

	if(ar->arTargetType == TARGET_TYPE_AR6003) {
		AR6K_DATASET_PATCH_ADDRESS(address, ar->arVersion.target_ver);
		if ((ar6000_transfer_bin_file(ar, AR6K_PATCH_FILE,
					      address, false)) != 0)
			return A_ERROR;
		param = address;
		bmifn(BMIWriteMemory(ar->arHifDevice,
		HOST_INTEREST_ITEM_ADDRESS(ar, hi_dset_list_head),
					   (unsigned char *)&param, 4));
	}

        /* Restore system sleep */
        address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
        bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, sleep));

        address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
        param = options | 0x20;
        bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));

        if (ar->arTargetType == TARGET_TYPE_AR6003) {
            /* Configure GPIO AR6003 UART */
#ifndef CONFIG_AR600x_DEBUG_UART_TX_PIN
#define CONFIG_AR600x_DEBUG_UART_TX_PIN 8
#endif
            param = CONFIG_AR600x_DEBUG_UART_TX_PIN;
            bmifn(BMIWriteMemory(ar->arHifDevice, HOST_INTEREST_ITEM_ADDRESS(ar, hi_dbg_uart_txpin), (u8 *)&param, 4));

#if (CONFIG_AR600x_DEBUG_UART_TX_PIN == 23)
            {
                address = GPIO_BASE_ADDRESS + CLOCK_GPIO_ADDRESS;
                bmifn(BMIReadSOCRegister(ar->arHifDevice, address, &param));
                param |= CLOCK_GPIO_BT_CLK_OUT_EN_SET(1);
                bmifn(BMIWriteSOCRegister(ar->arHifDevice, address, param));
            }
#endif

            /* Configure GPIO for BT Reset */
#ifdef ATH6KL_CONFIG_GPIO_BT_RESET
#define CONFIG_AR600x_BT_RESET_PIN	0x16
            param = CONFIG_AR600x_BT_RESET_PIN;
            bmifn(BMIWriteMemory(ar->arHifDevice, HOST_INTEREST_ITEM_ADDRESS(ar, hi_hci_uart_support_pins), (u8 *)&param, 4));
#endif /* ATH6KL_CONFIG_GPIO_BT_RESET */

            /* Configure UART flow control polarity */
#ifndef CONFIG_ATH6KL_BT_UART_FC_POLARITY
#define CONFIG_ATH6KL_BT_UART_FC_POLARITY 0
#endif

#if (CONFIG_ATH6KL_BT_UART_FC_POLARITY == 1)
            if (ar->arVersion.target_ver == AR6003_REV2_VERSION) {
                param = ((CONFIG_ATH6KL_BT_UART_FC_POLARITY << 1) & 0x2);
                bmifn(BMIWriteMemory(ar->arHifDevice, HOST_INTEREST_ITEM_ADDRESS(ar, hi_hci_uart_pwr_mgmt_params), (u8 *)&param, 4));
            }
#endif /* CONFIG_ATH6KL_BT_UART_FC_POLARITY */
        }

#ifdef HTC_RAW_INTERFACE
        if (!eppingtest && bypasswmi) {
            /* Don't run BMIDone for ART mode and force resetok=0 */
            resetok = 0;
            msleep(1000);
        }
#endif /* HTC_RAW_INTERFACE */
    }

    return 0;
}

int
ar6000_configure_target(struct ar6_softc *ar)
{
    u32 param;
    if (enableuartprint) {
        param = 1;
        if (BMIWriteMemory(ar->arHifDevice,
                           HOST_INTEREST_ITEM_ADDRESS(ar, hi_serial_enable),
                           (u8 *)&param,
                           4)!= 0)
        {
             AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMIWriteMemory for enableuartprint failed \n"));
             return A_ERROR;
        }
        AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("Serial console prints enabled\n"));
    }

    /* Tell target which HTC version it is used*/
    param = HTC_PROTOCOL_VERSION;
    if (BMIWriteMemory(ar->arHifDevice,
                       HOST_INTEREST_ITEM_ADDRESS(ar, hi_app_host_interest),
                       (u8 *)&param,
                       4)!= 0)
    {
         AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMIWriteMemory for htc version failed \n"));
         return A_ERROR;
    }

#ifdef CONFIG_HOST_TCMD_SUPPORT
    if(testmode) {
        ar->arTargetMode = AR6000_TCMD_MODE;
    }else {
        ar->arTargetMode = AR6000_WLAN_MODE;
    }
#endif
    if (enabletimerwar) {
        u32 param;

        if (BMIReadMemory(ar->arHifDevice,
            HOST_INTEREST_ITEM_ADDRESS(ar, hi_option_flag),
            (u8 *)&param,
            4)!= 0)
        {
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMIReadMemory for enabletimerwar failed \n"));
            return A_ERROR;
        }

        param |= HI_OPTION_TIMER_WAR;

        if (BMIWriteMemory(ar->arHifDevice,
            HOST_INTEREST_ITEM_ADDRESS(ar, hi_option_flag),
            (u8 *)&param,
            4) != 0)
        {
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMIWriteMemory for enabletimerwar failed \n"));
            return A_ERROR;
        }
        AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("Timer WAR enabled\n"));
    }

    /* set the firmware mode to STA/IBSS/AP */
    {
        u32 param;

        if (BMIReadMemory(ar->arHifDevice,
            HOST_INTEREST_ITEM_ADDRESS(ar, hi_option_flag),
            (u8 *)&param,
            4)!= 0)
        {
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMIReadMemory for setting fwmode failed \n"));
            return A_ERROR;
        }

        param |= (num_device << HI_OPTION_NUM_DEV_SHIFT);
        param |= (fwmode << HI_OPTION_FW_MODE_SHIFT);
        param |= (mac_addr_method << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
        param |= (firmware_bridge << HI_OPTION_FW_BRIDGE_SHIFT);


        if (BMIWriteMemory(ar->arHifDevice,
            HOST_INTEREST_ITEM_ADDRESS(ar, hi_option_flag),
            (u8 *)&param,
            4) != 0)
        {
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("BMIWriteMemory for setting fwmode failed \n"));
            return A_ERROR;
        }
        AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("Firmware mode set\n"));…