LXR linux/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
  43struct ath10k_usb_ctrl_diag_cmd_write {
  44        __le32 cmd;
  45        __le32 address;
  46        __le32 value;
  47        __le32 padding;
  48} __packed;
  49
  50struct ath10k_usb_ctrl_diag_cmd_read {
  51        __le32 cmd;
  52        __le32 address;
  53} __packed;
  54
  55struct ath10k_usb_ctrl_diag_resp_read {
  56        u8 value[4];
  57} __packed;
  58
  59/* tx/rx pipes for usb */
  60enum 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
  72struct 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 */
  92struct 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 */
 105struct 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
 112static inline struct ath10k_usb *ath10k_usb_priv(struct ath10k *ar)
 113{
 114        return (struct ath10k_usb *)ar->drv_priv;
 115}
 116
 117#endif
 118