release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/otus/80211core/pub_usb.h

   1 /*
   2  * Copyright (c) 2007-2008 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef _PUB_USB_H
  18 #define _PUB_USB_H
  19
  20 #include "../oal_dt.h"
  21
  22 #define ZM_HAL_80211_MODE_AP              0
  23 #define ZM_HAL_80211_MODE_STA             1
  24 #define ZM_HAL_80211_MODE_IBSS_GENERAL    2
  25 #define ZM_HAL_80211_MODE_IBSS_WPA2PSK    3
  26
  27 /* USB module description                                               */
  28 /* Queue Management                                                     */
  29 /* 80211core requires OAL to implement a transmission queue in OAL's    */
  30 /* USB module. Because there is only limited on-chip memory, so USB     */
  31 /* data transfer may be pending until on-chip memory is available.      */
  32 /* 80211core also requires OAL's USB module to provide two functions    */
  33 /* zfwUsbGetFreeTxQSize() and zfwUsbGetMaxTxQSize() for 80211core to    */
  34 /* query the status of this transmission queue. The main purpose of     */
  35 /* this queue is for QoS/WMM. Though there are hardware priority        */
  36 /* queues on the chip, and also software priority queues in the         */
  37 /* 80211core. There is still one and only one USB channel. So           */
  38 /* 80211core will use the information that zfwUsbGetFreeTxQSize()       */
  39 /* returned to schedule the traffic from the software priority          */
  40 /* queues to the hardware priority queues. For example, if 80211core    */
  41 /* found that USB transmission queue is going to be full, it will       */
  42 /* not allow packets with lower priority to enter the USB channel.      */
  43
  44
  45 /* Structure for USB call back functions */
  46 struct zfCbUsbFuncTbl {
  47     void (*zfcbUsbRecv)(zdev_t *dev, zbuf_t *buf);
  48     void (*zfcbUsbRegIn)(zdev_t* dev, u32_t* rsp, u16_t rspLen);
  49     void (*zfcbUsbOutComplete)(zdev_t* dev, zbuf_t *buf, u8_t status, u8_t *hdr);
  50     void (*zfcbUsbRegOutComplete)(zdev_t* dev);
  51 };
  52
  53 /* Call back functions                                                  */
  54 /* Below are the functions that should be called by the OAL             */
  55
  56 /* When data is available in endpoint 3, OAL shall embed the data in */
  57 /* zbuf_t and supply to 80211core by calling this function           */
  58 /* void (*zfcbUsbRecv)(zdev_t *dev, zbuf_t *buf); */
  59
  60 /* When data is available in endpoint 2, OAL shall call this function */
  61 /* void (*zfcbUsbRegIn)(zdev_t* dev, u32_t* rsp, u16_t rspLen); */
  62
  63 /* When USB data transfer completed in endpoint 1, OAL shall call this function */
  64 /* void (*zfcbUsbOutComplete)(zdev_t* dev, zbuf_t *buf, u8_t status, u8_t *hdr); */
  65
  66
  67 /* Call out functions                                                   */
  68 /* Below are the functions that supply by the OAL for 80211core to      */
  69 /* manipulate the USB                                                   */
  70
  71 /* Return OAL's USB TxQ size */
  72 extern u32_t zfwUsbGetMaxTxQSize(zdev_t* dev);
  73
  74 /* Return OAL's TxQ available size */
  75 extern u32_t zfwUsbGetFreeTxQSize(zdev_t* dev);
  76
  77 /* Register call back function */
  78 extern void zfwUsbRegisterCallBack(zdev_t* dev, struct zfCbUsbFuncTbl *zfUsbFunc);
  79
  80 /* Enable USB interrupt endpoint */
  81 extern u32_t zfwUsbEnableIntEpt(zdev_t *dev, u8_t endpt);
  82
  83 /* Enable USB Rx endpoint */
  84 extern int zfwUsbEnableRxEpt(zdev_t* dev, u8_t endpt);
  85
  86 /* 80211core call this function to send a USB request over endpoint 0 */
  87 extern u32_t zfwUsbSubmitControl(zdev_t* dev, u8_t req, u16_t value,
  88         u16_t index, void *data, u32_t size);
  89 extern u32_t zfwUsbSubmitControlIo(zdev_t* dev, u8_t req, u8_t reqtype,
  90         u16_t value, u16_t index, void *data, u32_t size);
  91
  92 /* 80211core call this function to transfer data out over endpoint 1 */
  93 extern void zfwUsbCmd(zdev_t* dev, u8_t endpt, u32_t* cmd, u16_t cmdLen);
  94
  95 /* 80211core call this function to transfer data out over endpoint 4 */
  96 extern u32_t zfwUsbSend(zdev_t* dev, u8_t endpt, u8_t *hdr, u16_t hdrlen, u8_t *snap, u16_t snapLen,
  97                 u8_t *tail, u16_t tailLen, zbuf_t *buf, u16_t offset);
  98
  99 /* 80211core call this function to set USB configuration */
 100 extern u32_t zfwUsbSetConfiguration(zdev_t *dev, u16_t value);
 101
 102 #endif