drivers/staging/otus/wrap_usb.c

   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 /*  Module Name : wrap_usb.c                                            */
  18 /*                                                                      */
  19 /*  Abstract                                                            */
  20 /*     This module contains wrapper functions for USB management        */
  21 /*                                                                      */
  22 /*  NOTES                                                               */
  23 /*     Platform dependent.                                              */
  24 /*                                                                      */
  25 /************************************************************************/
  26
  27 #include "oal_dt.h"
  28 #include "usbdrv.h"
  29
  30 #include <linux/netlink.h>
  31
  32 #if WIRELESS_EXT > 12
  33 #include <net/iw_handler.h>
  34 #endif
  35
  36 extern void zfLnxInitUsbTxQ(zdev_t* dev);
  37 extern void zfLnxInitUsbRxQ(zdev_t* dev);
  38 extern u32_t zfLnxSubmitRegInUrb(zdev_t *dev);
  39 u32_t zfLnxUsbOut(zdev_t* dev, u8_t *hdr, u16_t hdrlen, u8_t *snap, u16_t snapLen,
  40         u8_t *tail, u16_t tailLen, zbuf_t *buf, u16_t offset);
  41 u32_t zfLnxUsbWriteReg(zdev_t* dev, u32_t* cmd, u16_t cmdLen);
  42
  43 void zfwUsbRegisterCallBack(zdev_t* dev, struct zfCbUsbFuncTbl *zfUsbFunc) {
  44     struct usbdrv_private *macp = dev->ml_priv;
  45
  46     macp->usbCbFunctions.zfcbUsbRecv = zfUsbFunc->zfcbUsbRecv;
  47     macp->usbCbFunctions.zfcbUsbRegIn = zfUsbFunc->zfcbUsbRegIn;
  48     macp->usbCbFunctions.zfcbUsbOutComplete = zfUsbFunc->zfcbUsbOutComplete;
  49
  50     return;
  51 }
  52
  53 u32_t zfwUsbGetFreeTxQSize(zdev_t* dev)
  54 {
  55     struct usbdrv_private *macp = dev->ml_priv;
  56     u32_t        freeTxQSize;
  57     unsigned long irqFlag;
  58     //zmw_declare_for_critical_section();
  59
  60     //zmw_enter_critical_section(dev);
  61     spin_lock_irqsave(&macp->cs_lock, irqFlag);
  62
  63     freeTxQSize = ZM_MAX_TX_BUF_NUM - macp->TxBufCnt;
  64
  65     //zmw_leave_critical_section(dev);
  66     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
  67
  68     return freeTxQSize;
  69 }
  70
  71 u32_t zfwUsbGetMaxTxQSize(zdev_t* dev)
  72 {
  73     return ZM_MAX_TX_BUF_NUM;
  74 }
  75
  76 u32_t zfwUsbEnableIntEpt(zdev_t *dev, u8_t endpt)
  77 {
  78     /* Initialize USB TxQ */
  79     zfLnxInitUsbTxQ(dev);
  80
  81     /* Initialize USB RxQ */
  82     zfLnxInitUsbRxQ(dev);
  83
  84     /* Initialize USB Register In URB */
  85     //zfwUsbSubmitRegIn(dev);
  86     /* Initialize USB Register In URB */
  87     zfLnxSubmitRegInUrb(dev);
  88
  89     return 0;
  90 }
  91
  92 int zfwUsbEnableRxEpt(zdev_t* dev, u8_t endpt)
  93 {
  94     return 0;
  95 }
  96
  97 u32_t zfwUsbSubmitControl(zdev_t* dev, u8_t req, u16_t value, u16_t index, void *data, u32_t size)
  98 {
  99     int result = 0;
 100     u32_t ret = 0;
 101     struct usbdrv_private *macp = dev->ml_priv;
 102     u8_t* buf;
 103
 104     if (size > 0)
 105     {
 106         buf = kmalloc(size, GFP_KERNEL);
 107         memcpy(buf, (u8_t*)data, size);
 108     }
 109     else
 110     {
 111         buf = NULL;
 112     }
 113
 114 #if 0
 115     printk(KERN_ERR "req = 0x%02x\n", req);
 116     printk(KERN_ERR "value = 0x%04x\n", value);
 117     printk(KERN_ERR "index = 0x%04x\n", index);
 118     printk(KERN_ERR "data = 0x%lx\n", (u32_t) data);
 119     printk(KERN_ERR "size = %ld\n", size);
 120 #endif
 121
 122     result = usb_control_msg(macp->udev, usb_sndctrlpipe(macp->udev, 0),
 123             req, USB_DIR_OUT | 0x40, value, index, buf, size, HZ);
 124
 125     if (result < 0)
 126     {
 127         printk("zfwUsbSubmitControl() failed, result=0x%x\n", result);
 128         ret = 1;
 129     }
 130     kfree(buf);
 131
 132     return ret;
 133 }
 134
 135 void zfwUsbCmd(zdev_t* dev, u8_t endpt, u32_t* cmd, u16_t cmdLen)
 136 {
 137     struct usbdrv_private *macp = dev->ml_priv;
 138     u32_t ret;
 139
 140     //MPUsbCommand(dev, endpt, cmd, cmdLen);
 141     ret = zfLnxUsbWriteReg(dev, cmd, cmdLen);
 142
 143     /* if zfLnxUsbWriteReg() return error, free and allocate urb, resend again */
 144     if (ret != 0)
 145     {
 146         usb_free_urb(macp->RegOutUrb);
 147         macp->RegOutUrb = usb_alloc_urb(0, GFP_ATOMIC);
 148         ret = zfLnxUsbWriteReg(dev, cmd, cmdLen);
 149     }
 150 }
 151
 152 u32_t zfwUsbSend(zdev_t* dev, u8_t endpt, u8_t *hdr, u16_t hdrlen, u8_t *snap, u16_t snapLen,
 153                 u8_t *tail, u16_t tailLen, zbuf_t *buf, u16_t offset)
 154 {
 155     u32_t status;
 156
 157 #ifdef ZM_CONFIG_BIG_ENDIAN
 158     u32_t ii = 0;
 159     u16_t *pc = NULL;
 160
 161     pc = (u16_t *)hdr;
 162     for(ii=0; ii<(hdrlen>>1); ii++)
 163     {
 164         pc[ii] = cpu_to_le16(pc[ii]);
 165     }
 166
 167     pc = (u16_t *)snap;
 168     for(ii=0; ii<(snapLen>>1); ii++)
 169     {
 170         pc[ii] = cpu_to_le16(pc[ii]);
 171     }
 172
 173     pc = (u16_t *)tail;
 174     for(ii=0; ii<(tailLen>>1); ii++)
 175     {
 176         pc[ii] = cpu_to_le16(pc[ii]);
 177     }
 178 #endif
 179
 180     status = zfLnxUsbOut(dev, hdr, hdrlen, snap, snapLen, tail, tailLen, buf, offset);
 181     if ( status == 0 )
 182     {
 183         return 0;
 184     }
 185     else
 186     {
 187         return 1;
 188     }
 189 }
 190
 191 /* Leave an empty line below to remove warning message on some compiler */