LXR linux/drivers/net/wireless/ath/ath9k/hif

   1/*
   2 * Copyright (c) 2010-2011 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 3
  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
  59struct 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
  72struct 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
  82struct cmd_buf {
  83        struct sk_buff *skb;
  84        struct hif_device_usb *hif_dev;
  85};
  86
  87#define HIF_USB_START BIT(0)
  88#define HIF_USB_READY BIT(1)
  89
  90struct hif_device_usb {
  91        struct usb_device *udev;
  92        struct usb_interface *interface;
  93        const struct usb_device_id *usb_device_id;
  94        const void *fw_data;
  95        size_t fw_size;
  96        struct completion fw_done;
  97        struct htc_target *htc_handle;
  98        struct hif_usb_tx tx;
  99        struct usb_anchor regout_submitted;
 100        struct usb_anchor rx_submitted;
 101        struct usb_anchor reg_in_submitted;
 102        struct usb_anchor mgmt_submitted;
 103        struct sk_buff *remain_skb;
 104        const char *fw_name;
 105        int rx_remain_len;
 106        int rx_pkt_len;
 107        int rx_transfer_len;
 108        int rx_pad_len;
 109        spinlock_t rx_lock;
 110        u8 flags; /* HIF_USB_* */
 111};
 112
 113int ath9k_hif_usb_init(void);
 114void ath9k_hif_usb_exit(void);
 115
 116#endif /* HTC_USB_H */
 117