acxusb.h

   1 #ifndef _ACXUSB_H_
   2 #define _ACXUSB_H_
   3
   4 /*
   5  * acxusb.h: USB specific constants and structures.
   6  *
   7  * Copyright (c) 2008 Francis Galiegue <fgaliegue@gmail.com> for the ACX100
   8  * driver project.
   9  *
  10  * This file is licensed under the GPLv2. See the README file for details.
  11  */
  12 #ifdef ACX_MAC80211_USB
  13
  14 /* Used for usb_txbuffer.desc field */
  15 #define USB_TXBUF_TXDESC        0xA
  16 /* Size of header (everything up to data[]) */
  17 #define USB_TXBUF_HDRSIZE       14
  18 typedef struct usb_txbuffer {
  19         u16     desc;
  20         u16     mpdu_len;
  21         u8      queue_index;
  22         u8      rate;
  23         u32     hostdata;
  24         u8      ctrl1;
  25         u8      ctrl2;
  26         u16     data_len;
  27         /* wlan packet content is placed here: */
  28         u8      data[30 + 2312 + 4]; /*WLAN_A4FR_MAXLEN_WEP_FCS]*/
  29 } __attribute__ ((packed)) usb_txbuffer_t;
  30
  31 /* USB returns either rx packets (see rxbuffer) or
  32 ** these "tx status" structs: */
  33 typedef struct usb_txstatus {
  34         u16     mac_cnt_rcvd;           /* only 12 bits are len! (0xfff) */
  35         u8      queue_index;
  36         u8      mac_status;             /* seen 0x20 on tx failure */
  37         u32     hostdata;
  38         u8      rate;
  39         u8      ack_failures;
  40         u8      rts_failures;
  41         u8      rts_ok;
  42 //      struct ieee80211_tx_status txstatus;
  43 //      struct sk_buff *skb;
  44 } __attribute__ ((packed)) usb_txstatus_t;
  45
  46 typedef struct usb_tx {
  47         unsigned        busy:1;
  48         struct urb      *urb;
  49         acx_device_t    *adev;
  50         /* actual USB bulk output data block is here: */
  51         usb_txbuffer_t  bulkout;
  52 } usb_tx_t;
  53
  54 struct usb_rx_plain {
  55         unsigned        busy:1;
  56         struct urb      *urb;
  57         acx_device_t    *adev;
  58         rxbuffer_t      bulkin;
  59 };
  60
  61 typedef struct usb_rx {
  62         unsigned        busy:1;
  63         struct urb      *urb;
  64         acx_device_t    *adev;
  65         rxbuffer_t      bulkin;
  66         /* Make entire structure 4k */
  67         u8 padding[4*1024 - sizeof(struct usb_rx_plain)];
  68 } usb_rx_t;
  69 #endif /* ACX_USB */
  70 #endif /* _ACXUSB_H_ */
  71