path: root/drivers/staging/otus/wwrap.c

/*
 * Copyright (c) 2007-2008 Atheros Communications Inc.
 *
 * 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.
 */
/*  Module Name : wwrap.c                                               */
/*  Abstract                                                            */
/*      This module contains wrapper functions.                         */
/*                                                                      */
/*  NOTES                                                               */
/*      Platform dependent.                                             */
/*                                                                      */

/* Please include your header files here */
#include "oal_dt.h"
#include "usbdrv.h"

#include <linux/netlink.h>
#include <linux/slab.h>
#include <net/iw_handler.h>

extern void zfiRecv80211(zdev_t* dev, zbuf_t* buf, struct zsAdditionInfo* addInfo);
extern void zfCoreRecv(zdev_t* dev, zbuf_t* buf, struct zsAdditionInfo* addInfo);
extern void zfIdlChkRsp(zdev_t* dev, u32_t* rsp, u16_t rspLen);
extern void zfIdlRsp(zdev_t* dev, u32_t *rsp, u16_t rspLen);



//extern struct zsWdsStruct wds[ZM_WDS_PORT_NUMBER];
extern struct zsVapStruct vap[ZM_VAP_PORT_NUMBER];

u32_t zfLnxUsbSubmitTxData(zdev_t* dev);
u32_t zfLnxUsbIn(zdev_t* dev, urb_t *urb, zbuf_t *buf);
u32_t zfLnxSubmitRegInUrb(zdev_t *dev);
u32_t zfLnxUsbSubmitBulkUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
        void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context);
u32_t zfLnxUsbSubmitIntUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
        void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context,
        u32_t interval);

u16_t zfLnxGetFreeTxUrb(zdev_t *dev)
{
    struct usbdrv_private *macp = dev->ml_priv;
    u16_t idx;
    unsigned long irqFlag;

    spin_lock_irqsave(&macp->cs_lock, irqFlag);

    //idx = ((macp->TxUrbTail + 1) & (ZM_MAX_TX_URB_NUM - 1));

    //if (idx != macp->TxUrbHead)
    if (macp->TxUrbCnt != 0)
    {
        idx = macp->TxUrbTail;
        macp->TxUrbTail = ((macp->TxUrbTail + 1) & (ZM_MAX_TX_URB_NUM - 1));
        macp->TxUrbCnt--;
    }
    else
    {
        //printk(KERN_ERR "macp->TxUrbCnt: %d\n", macp->TxUrbCnt);
        idx = 0xffff;
    }

    spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
    return idx;
}

void zfLnxPutTxUrb(zdev_t *dev)
{
    struct usbdrv_private *macp = dev->ml_priv;
    u16_t idx;
    unsigned long irqFlag;

    spin_lock_irqsave(&macp->cs_lock, irqFlag);

    idx = ((macp->TxUrbHead + 1) & (ZM_MAX_TX_URB_NUM - 1));

    //if (idx != macp->TxUrbTail)
    if (macp->TxUrbCnt < ZM_MAX_TX_URB_NUM)
    {
        macp->TxUrbHead = idx;
        macp->TxUrbCnt++;
    }
    else
    {
        printk("UsbTxUrbQ inconsistent: TxUrbHead: %d, TxUrbTail: %d\n",
                macp->TxUrbHead, macp->TxUrbTail);
    }

    spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
}

u16_t zfLnxCheckTxBufferCnt(zdev_t *dev)
{
    struct usbdrv_private *macp = dev->ml_priv;
    u16_t TxBufCnt;
    unsigned long irqFlag;

    spin_lock_irqsave(&macp->cs_lock, irqFlag);

    TxBufCnt = macp->TxBufCnt;

    spin_unlock_irqrestore(&macp->cs_lock, irqFlag