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 MAJOR_VERSION_REQ 1
  21 #define MINOR_VERSION_REQ 2
  22
  23 #define IS_AR7010_DEVICE(_v) (((_v) == AR9280_USB) || ((_v) == AR9287_USB))
  24
  25 #define AR9271_FIRMWARE       0x501000
  26 #define AR9271_FIRMWARE_TEXT  0x903000
  27 #define AR7010_FIRMWARE_TEXT  0x906000
  28
  29 #define FIRMWARE_DOWNLOAD       0x30
  30 #define FIRMWARE_DOWNLOAD_COMP  0x31
  31
  32 #define ATH_USB_RX_STREAM_MODE_TAG 0x4e00
  33 #define ATH_USB_TX_STREAM_MODE_TAG 0x697e
  34
  35 /* FIXME: Verify these numbers (with Windows) */
  36 #define MAX_TX_URB_NUM  8
  37 #define MAX_TX_BUF_NUM  256
  38 #define MAX_TX_BUF_SIZE 32768
  39 #define MAX_TX_AGGR_NUM 20
  40
  41 #define MAX_RX_URB_NUM  8
  42 #define MAX_RX_BUF_SIZE 16384
  43 #define MAX_PKT_NUM_IN_TRANSFER 10
  44
  45 #define MAX_REG_OUT_URB_NUM  1
  46 #define MAX_REG_IN_URB_NUM   64
  47
  48 #define MAX_REG_IN_BUF_SIZE 64
  49
  50 /* USB Endpoint definition */
  51 #define USB_WLAN_TX_PIPE  1
  52 #define USB_WLAN_RX_PIPE  2
  53 #define USB_REG_IN_PIPE   3
  54 #define USB_REG_OUT_PIPE  4
  55
  56 #define HIF_USB_MAX_RXPIPES 2
  57 #define HIF_USB_MAX_TXPIPES 4
  58
  59 struct tx_buf {
  60         u8 *buf;
  61         u16 len;
  62         u16 offset;
  63         struct urb *urb;
  64         struct sk_buff_head skb_queue;
  65         struct hif_device_usb *hif_dev;
  66         struct list_head list;
  67 };
  68
  69 #define HIF_USB_TX_STOP  BIT(0)
  70 #define HIF_USB_TX_FLUSH BIT(1)
  71
  72 struct hif_usb_tx {
  73         u8 flags;
  74         u8 tx_buf_cnt;
  75         u16 tx_skb_cnt;
  76         struct sk_buff_head tx_skb_queue;
  77         struct list_head tx_buf;
  78         struct list_head tx_pending;
  79         spinlock_t tx_lock;
  80 };
  81
  82 struct cmd_buf {
  83         struct sk_buff *skb;
  84         struct hif_device_usb *hif_dev;
  85 };
  86
  87 #define HIF_USB_START BIT(0)
  88
  89 struct hif_device_usb {
  90         u16 device_id;
  91         struct usb_device *udev;
  92         struct usb_interface *interface;
  93         const struct firmware *firmware;
  94         struct htc_target *htc_handle;
  95         struct hif_usb_tx tx;
  96         struct usb_anchor regout_submitted;
  97         struct usb_anchor rx_submitted;
  98         struct usb_anchor reg_in_submitted;
  99         struct usb_anchor mgmt_submitted;
 100         struct sk_buff *remain_skb;
 101         const char *fw_name;
 102         int rx_remain_len;
 103         int rx_pkt_len;
 104         int rx_transfer_len;
 105         int rx_pad_len;
 106         spinlock_t rx_lock;
 107         u8 flags; /* HIF_USB_* */
 108 };
 109
 110 int ath9k_hif_usb_init(void);
 111 void ath9k_hif_usb_exit(void);
 112
 113 #endif /* HTC_USB_H */