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