drivers/net/wireless/ath/ath10k/usb.h

   1 /* SPDX-License-Identifier: ISC */
   2 /*
   3  * Copyright (c) 2004-2011 Atheros Communications Inc.
   4  * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
   5  * Copyright (c) 2016-2017 Erik Stromdahl <erik.stromdahl@gmail.com>
   6  */
   7
   8 #ifndef _USB_H_
   9 #define _USB_H_
  10
  11 /* constants */
  12 #define TX_URB_COUNT               32
  13 #define RX_URB_COUNT               32
  14 #define ATH10K_USB_RX_BUFFER_SIZE  4096
  15
  16 #define ATH10K_USB_PIPE_INVALID ATH10K_USB_PIPE_MAX
  17
  18 /* USB endpoint definitions */
  19 #define ATH10K_USB_EP_ADDR_APP_CTRL_IN          0x81
  20 #define ATH10K_USB_EP_ADDR_APP_DATA_IN          0x82
  21 #define ATH10K_USB_EP_ADDR_APP_DATA2_IN         0x83
  22 #define ATH10K_USB_EP_ADDR_APP_INT_IN           0x84
  23
  24 #define ATH10K_USB_EP_ADDR_APP_CTRL_OUT         0x01
  25 #define ATH10K_USB_EP_ADDR_APP_DATA_LP_OUT      0x02
  26 #define ATH10K_USB_EP_ADDR_APP_DATA_MP_OUT      0x03
  27 #define ATH10K_USB_EP_ADDR_APP_DATA_HP_OUT      0x04
  28
  29 /* diagnostic command defnitions */
  30 #define ATH10K_USB_CONTROL_REQ_SEND_BMI_CMD        1
  31 #define ATH10K_USB_CONTROL_REQ_RECV_BMI_RESP       2
  32 #define ATH10K_USB_CONTROL_REQ_DIAG_CMD            3
  33 #define ATH10K_USB_CONTROL_REQ_DIAG_RESP           4
  34
  35 #define ATH10K_USB_CTRL_DIAG_CC_READ               0
  36 #define ATH10K_USB_CTRL_DIAG_CC_WRITE              1
  37
  38 #define ATH10K_USB_IS_BULK_EP(attr) (((attr) & 3) == 0x02)
  39 #define ATH10K_USB_IS_INT_EP(attr)  (((attr) & 3) == 0x03)
  40 #define ATH10K_USB_IS_ISOC_EP(attr) (((attr) & 3) == 0x01)
  41 #define ATH10K_USB_IS_DIR_IN(addr)  ((addr) & 0x80)
  42
  43 struct ath10k_usb_ctrl_diag_cmd_write {
  44         __le32 cmd;
  45         __le32 address;
  46         __le32 value;
  47         __le32 padding;
  48 } __packed;
  49
  50 struct ath10k_usb_ctrl_diag_cmd_read {
  51         __le32 cmd;
  52         __le32 address;
  53 } __packed;
  54
  55 struct ath10k_usb_ctrl_diag_resp_read {
  56         u8 value[4];
  57 } __packed;
  58
  59 /* tx/rx pipes for usb */
  60 enum ath10k_usb_pipe_id {
  61         ATH10K_USB_PIPE_TX_CTRL = 0,
  62         ATH10K_USB_PIPE_TX_DATA_LP,
  63         ATH10K_USB_PIPE_TX_DATA_MP,
  64         ATH10K_USB_PIPE_TX_DATA_HP,
  65         ATH10K_USB_PIPE_RX_CTRL,
  66         ATH10K_USB_PIPE_RX_DATA,
  67         ATH10K_USB_PIPE_RX_DATA2,
  68         ATH10K_USB_PIPE_RX_INT,
  69         ATH10K_USB_PIPE_MAX
  70 };
  71
  72 struct ath10k_usb_pipe {
  73         struct list_head urb_list_head;
  74         struct usb_anchor urb_submitted;
  75         u32 urb_alloc;
  76         u32 urb_cnt;
  77         u32 urb_cnt_thresh;
  78         unsigned int usb_pipe_handle;
  79         u32 flags;
  80         u8 ep_address;
  81         u8 logical_pipe_num;
  82         struct ath10k_usb *ar_usb;
  83         u16 max_packet_size;
  84         struct work_struct io_complete_work;
  85         struct sk_buff_head io_comp_queue;
  86         struct usb_endpoint_descriptor *ep_desc;
  87 };
  88
  89 #define ATH10K_USB_PIPE_FLAG_TX BIT(0)
  90
  91 /* usb device object */
  92 struct ath10k_usb {
  93         /* protects pipe->urb_list_head and  pipe->urb_cnt */
  94         spinlock_t cs_lock;
  95
  96         struct usb_device *udev;
  97         struct usb_interface *interface;
  98         struct ath10k_usb_pipe pipes[ATH10K_USB_PIPE_MAX];
  99         u8 *diag_cmd_buffer;
 100         u8 *diag_resp_buffer;
 101         struct ath10k *ar;
 102 };
 103
 104 /* usb urb object */
 105 struct ath10k_urb_context {
 106         struct list_head link;
 107         struct ath10k_usb_pipe *pipe;
 108         struct sk_buff *skb;
 109         struct ath10k *ar;
 110 };
 111
 112 static inline struct ath10k_usb *ath10k_usb_priv(struct ath10k *ar)
 113 {
 114         return (struct ath10k_usb *)ar->drv_priv;
 115 }
 116
 117 #endif