linux/drivers/net/wireless/ath/ath9k/hif_usb.h
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   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/* old firmware images */
  21#define FIRMWARE_AR7010_1_1     "htc_7010.fw"
  22#define FIRMWARE_AR9271         "htc_9271.fw"
  23
  24/* supported Major FW version */
  25#define MAJOR_VERSION_REQ 1
  26#define MINOR_VERSION_REQ 3
  27/* minimal and maximal supported Minor FW version. */
  28#define FIRMWARE_MINOR_IDX_MAX  4
  29#define FIRMWARE_MINOR_IDX_MIN  3
  30#define HTC_FW_PATH     "ath9k_htc"
  31
  32#define HTC_9271_MODULE_FW  HTC_FW_PATH "/htc_9271-" \
  33                        __stringify(MAJOR_VERSION_REQ) \
  34                        "." __stringify(FIRMWARE_MINOR_IDX_MAX) ".0.fw"
  35#define HTC_7010_MODULE_FW  HTC_FW_PATH "/htc_7010-" \
  36                        __stringify(MAJOR_VERSION_REQ) \
  37                        "." __stringify(FIRMWARE_MINOR_IDX_MAX) ".0.fw"
  38
  39extern int htc_use_dev_fw;
  40
  41#define IS_AR7010_DEVICE(_v) (((_v) == AR9280_USB) || ((_v) == AR9287_USB))
  42
  43#define AR9271_FIRMWARE       0x501000
  44#define AR9271_FIRMWARE_TEXT  0x903000
  45#define AR7010_FIRMWARE_TEXT  0x906000
  46
  47#define FIRMWARE_DOWNLOAD       0x30
  48#define FIRMWARE_DOWNLOAD_COMP  0x31
  49
  50#define ATH_USB_RX_STREAM_MODE_TAG 0x4e00
  51#define ATH_USB_TX_STREAM_MODE_TAG 0x697e
  52
  53/* FIXME: Verify these numbers (with Windows) */
  54#define MAX_TX_URB_NUM  8
  55#define MAX_TX_BUF_NUM  256
  56#define MAX_TX_BUF_SIZE 32768
  57#define MAX_TX_AGGR_NUM 20
  58
  59#define MAX_RX_URB_NUM  8
  60#define MAX_RX_BUF_SIZE 16384
  61#define MAX_PKT_NUM_IN_TRANSFER 10
  62
  63#define MAX_REG_OUT_URB_NUM  1
  64#define MAX_REG_IN_URB_NUM   64
  65
  66#define MAX_REG_IN_BUF_SIZE 64
  67
  68/* USB Endpoint definition */
  69#define USB_WLAN_TX_PIPE  1
  70#define USB_WLAN_RX_PIPE  2
  71#define USB_REG_IN_PIPE   3
  72#define USB_REG_OUT_PIPE  4
  73
  74#define HIF_USB_MAX_RXPIPES 2
  75#define HIF_USB_MAX_TXPIPES 4
  76
  77struct tx_buf {
  78        u8 *buf;
  79        u16 len;
  80        u16 offset;
  81        struct urb *urb;
  82        struct sk_buff_head skb_queue;
  83        struct hif_device_usb *hif_dev;
  84        struct list_head list;
  85};
  86
  87#define HIF_USB_TX_STOP  BIT(0)
  88#define HIF_USB_TX_FLUSH BIT(1)
  89
  90struct hif_usb_tx {
  91        u8 flags;
  92        u8 tx_buf_cnt;
  93        u16 tx_skb_cnt;
  94        struct sk_buff_head tx_skb_queue;
  95        struct list_head tx_buf;
  96        struct list_head tx_pending;
  97        spinlock_t tx_lock;
  98};
  99
 100struct cmd_buf {
 101        struct sk_buff *skb;
 102        struct hif_device_usb *hif_dev;
 103};
 104
 105#define HIF_USB_START BIT(0)
 106#define HIF_USB_READY BIT(1)
 107
 108struct hif_device_usb {
 109        struct usb_device *udev;
 110        struct usb_interface *interface;
 111        const struct usb_device_id *usb_device_id;
 112        const void *fw_data;
 113        size_t fw_size;
 114        struct completion fw_done;
 115        struct htc_target *htc_handle;
 116        struct hif_usb_tx tx;
 117        struct usb_anchor regout_submitted;
 118        struct usb_anchor rx_submitted;
 119        struct usb_anchor reg_in_submitted;
 120        struct usb_anchor mgmt_submitted;
 121        struct sk_buff *remain_skb;
 122        char fw_name[32];
 123        int fw_minor_index;
 124        int rx_remain_len;
 125        int rx_pkt_len;
 126        int rx_transfer_len;
 127        int rx_pad_len;
 128        spinlock_t rx_lock;
 129        u8 flags; /* HIF_USB_* */
 130};
 131
 132int ath9k_hif_usb_init(void);
 133void ath9k_hif_usb_exit(void);
 134
 135#endif /* HTC_USB_H */
 136