drivers/net/wireless/ath/ath9k/hif_usb.h

   1 /*
   2  * Copyright (c) 2010 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 HTC_USB_H
  18 #define HTC_USB_H
  19
  20 #define AR9271_FIRMWARE       0x501000
  21 #define AR9271_FIRMWARE_TEXT  0x903000
  22
  23 #define FIRMWARE_DOWNLOAD       0x30
  24 #define FIRMWARE_DOWNLOAD_COMP  0x31
  25
  26 #define ATH_USB_RX_STREAM_MODE_TAG 0x4e00
  27 #define ATH_USB_TX_STREAM_MODE_TAG 0x697e
  28
  29 /* FIXME: Verify these numbers (with Windows) */
  30 #define MAX_TX_URB_NUM  8
  31 #define MAX_TX_BUF_NUM  1024
  32 #define MAX_TX_BUF_SIZE 32768
  33 #define MAX_TX_AGGR_NUM 20
  34
  35 #define MAX_RX_URB_NUM  8
  36 #define MAX_RX_BUF_SIZE 16384
  37
  38 #define MAX_REG_OUT_URB_NUM  1
  39 #define MAX_REG_OUT_BUF_NUM  8
  40
  41 #define MAX_REG_IN_BUF_SIZE 64
  42
  43 /* USB Endpoint definition */
  44 #define USB_WLAN_TX_PIPE  1
  45 #define USB_WLAN_RX_PIPE  2
  46 #define USB_REG_IN_PIPE   3
  47 #define USB_REG_OUT_PIPE  4
  48
  49 #define HIF_USB_MAX_RXPIPES 2
  50 #define HIF_USB_MAX_TXPIPES 4
  51
  52 struct tx_buf {
  53         u8 *buf;
  54         u16 len;
  55         u16 offset;
  56         struct urb *urb;
  57         struct sk_buff_head skb_queue;
  58         struct hif_device_usb *hif_dev;
  59         struct list_head list;
  60 };
  61
  62 #define HIF_USB_TX_STOP  BIT(0)
  63 #define HIF_USB_TX_FLUSH BIT(1)
  64
  65 struct hif_usb_tx {
  66         u8 flags;
  67         u8 tx_buf_cnt;
  68         u16 tx_skb_cnt;
  69         struct sk_buff_head tx_skb_queue;
  70         struct list_head tx_buf;
  71         struct list_head tx_pending;
  72         spinlock_t tx_lock;
  73 };
  74
  75 struct cmd_buf {
  76         struct sk_buff *skb;
  77         struct hif_device_usb *hif_dev;
  78 };
  79
  80 #define HIF_USB_START BIT(0)
  81
  82 struct hif_device_usb {
  83         u16 device_id;
  84         struct usb_device *udev;
  85         struct usb_interface *interface;
  86         const struct firmware *firmware;
  87         struct htc_target *htc_handle;
  88         struct hif_usb_tx tx;
  89         struct urb *reg_in_urb;
  90         struct usb_anchor rx_submitted;
  91         struct sk_buff *remain_skb;
  92         int rx_remain_len;
  93         int rx_pkt_len;
  94         int rx_transfer_len;
  95         int rx_pad_len;
  96         u8 flags; /* HIF_USB_* */
  97 };
  98
  99 int ath9k_hif_usb_init(void);
 100 void ath9k_hif_usb_exit(void);
 101
 102 #endif /* HTC_USB_H */