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 IS_AR7010_DEVICE(_v) (((_v) == AR9280_USB) || ((_v) == AR9287_USB))
  21
  22 #define AR9271_FIRMWARE       0x501000
  23 #define AR9271_FIRMWARE_TEXT  0x903000
  24 #define AR7010_FIRMWARE_TEXT  0x906000
  25
  26 #define FIRMWARE_DOWNLOAD       0x30
  27 #define FIRMWARE_DOWNLOAD_COMP  0x31
  28
  29 #define ATH_USB_RX_STREAM_MODE_TAG 0x4e00
  30 #define ATH_USB_TX_STREAM_MODE_TAG 0x697e
  31
  32 /* FIXME: Verify these numbers (with Windows) */
  33 #define MAX_TX_URB_NUM  8
  34 #define MAX_TX_BUF_NUM  256
  35 #define MAX_TX_BUF_SIZE 32768
  36 #define MAX_TX_AGGR_NUM 20
  37
  38 #define MAX_RX_URB_NUM  8
  39 #define MAX_RX_BUF_SIZE 16384
  40 #define MAX_PKT_NUM_IN_TRANSFER 10
  41
  42 #define MAX_REG_OUT_URB_NUM  1
  43 #define MAX_REG_IN_URB_NUM   64
  44
  45 #define MAX_REG_IN_BUF_SIZE 64
  46
  47 /* USB Endpoint definition */
  48 #define USB_WLAN_TX_PIPE  1
  49 #define USB_WLAN_RX_PIPE  2
  50 #define USB_REG_IN_PIPE   3
  51 #define USB_REG_OUT_PIPE  4
  52
  53 #define HIF_USB_MAX_RXPIPES 2
  54 #define HIF_USB_MAX_TXPIPES 4
  55
  56 struct tx_buf {
  57         u8 *buf;
  58         u16 len;
  59         u16 offset;
  60         struct urb *urb;
  61         struct sk_buff_head skb_queue;
  62         struct hif_device_usb *hif_dev;
  63         struct list_head list;
  64 };
  65
  66 #define HIF_USB_TX_STOP  BIT(0)
  67 #define HIF_USB_TX_FLUSH BIT(1)
  68
  69 struct hif_usb_tx {
  70         u8 flags;
  71         u8 tx_buf_cnt;
  72         u16 tx_skb_cnt;
  73         struct sk_buff_head tx_skb_queue;
  74         struct list_head tx_buf;
  75         struct list_head tx_pending;
  76         spinlock_t tx_lock;
  77 };
  78
  79 struct cmd_buf {
  80         struct sk_buff *skb;
  81         struct hif_device_usb *hif_dev;
  82 };
  83
  84 #define HIF_USB_START BIT(0)
  85
  86 struct hif_device_usb {
  87         u16 device_id;
  88         struct usb_device *udev;
  89         struct usb_interface *interface;
  90         const struct firmware *firmware;
  91         struct htc_target *htc_handle;
  92         struct hif_usb_tx tx;
  93         struct usb_anchor regout_submitted;
  94         struct usb_anchor rx_submitted;
  95         struct usb_anchor reg_in_submitted;
  96         struct usb_anchor mgmt_submitted;
  97         struct sk_buff *remain_skb;
  98         const char *fw_name;
  99         int rx_remain_len;
 100         int rx_pkt_len;
 101         int rx_transfer_len;
 102         int rx_pad_len;
 103         spinlock_t rx_lock;
 104         u8 flags; /* HIF_USB_* */
 105 };
 106
 107 int ath9k_hif_usb_init(void);
 108 void ath9k_hif_usb_exit(void);
 109
 110 #endif /* HTC_USB_H */