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/* SPDX-License-Identifier: ISC */
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
* Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
* Copyright (c) 2016-2017 Erik Stromdahl <erik.stromdahl@gmail.com>
*/
#ifndef _USB_H_
#define _USB_H_
/* constants */
#define TX_URB_COUNT 32
#define RX_URB_COUNT 32
#define ATH10K_USB_RX_BUFFER_SIZE 4096
#define ATH10K_USB_PIPE_INVALID ATH10K_USB_PIPE_MAX
/* USB endpoint definitions */
#define ATH10K_USB_EP_ADDR_APP_CTRL_IN 0x81
#define ATH10K_USB_EP_ADDR_APP_DATA_IN 0x82
#define ATH10K_USB_EP_ADDR_APP_DATA2_IN 0x83
#define ATH10K_USB_EP_ADDR_APP_INT_IN 0x84
#define ATH10K_USB_EP_ADDR_APP_CTRL_OUT 0x01
#define ATH10K_USB_EP_ADDR_APP_DATA_LP_OUT 0x02
#define ATH10K_USB_EP_ADDR_APP_DATA_MP_OUT 0x03
#define ATH10K_USB_EP_ADDR_APP_DATA_HP_OUT 0x04
/* diagnostic command definitions */
#define ATH10K_USB_CONTROL_REQ_SEND_BMI_CMD 1
#define ATH10K_USB_CONTROL_REQ_RECV_BMI_RESP 2
#define ATH10K_USB_CONTROL_REQ_DIAG_CMD 3
#define ATH10K_USB_CONTROL_REQ_DIAG_RESP 4
#define ATH10K_USB_CTRL_DIAG_CC_READ 0
#define ATH10K_USB_CTRL_DIAG_CC_WRITE 1
#define ATH10K_USB_IS_BULK_EP(attr) (((attr) & 3) == 0x02)
#define ATH10K_USB_IS_INT_EP(attr) (((attr) & 3) == 0x03)
#define ATH10K_USB_IS_ISOC_EP(attr) (((attr) & 3) == 0x01)
#define ATH10K_USB_IS_DIR_IN(addr) ((addr) & 0x80)
struct ath10k_usb_ctrl_diag_cmd_write {
__le32 cmd;
__le32 address;
__le32 value;
__le32 padding;
} __packed;
struct ath10k_usb_ctrl_diag_cmd_read {
__le32 cmd;
__le32 address;
} __packed;
struct ath10k_usb_ctrl_diag_resp_read {
u8 value[4];
} __packed;
/* tx/rx pipes for usb */
enum ath10k_usb_pipe_id {
ATH10K_USB_PIPE_TX_CTRL = 0,
ATH10K_USB_PIPE_TX_DATA_LP,
ATH10K_USB_PIPE_TX_DATA_MP,
ATH10K_USB_PIPE_TX_DATA_HP,
ATH10K_USB_PIPE_RX_CTRL,
ATH10K_USB_PIPE_RX_DATA,
ATH10K_USB_PIPE_RX_DATA2,
ATH10K_USB_PIPE_RX_INT,
ATH10K_USB_PIPE_MAX
};
struct ath10k_usb_pipe {
struct list_head urb_list_head;
struct usb_anchor urb_submitted;
u32 urb_alloc;
u32 urb_cnt;
u32 urb_cnt_thresh;
unsigned int usb_pipe_handle;
u32 flags;
u8 ep_address;
u8 logical_pipe_num;
struct ath10k_usb *ar_usb;
u16 max_packet_size;
struct work_struct io_complete_work;
struct sk_buff_head io_comp_queue;
struct usb_endpoint_descriptor *ep_desc;
};
#define ATH10K_USB_PIPE_FLAG_TX BIT(0)
/* usb device object */
struct ath10k_usb {
/* protects pipe->urb_list_head and pipe->urb_cnt */
spinlock_t cs_lock;
struct usb_device *udev;
struct usb_interface *interface;
struct ath10k_usb_pipe pipes[ATH10K_USB_PIPE_MAX];
u8 *diag_cmd_buffer;
u8 *diag_resp_buffer;
struct ath10k *ar;
};
/* usb urb object */
struct ath10k_urb_context {
struct list_head link;
struct ath10k_usb_pipe *pipe;
struct sk_buff *skb;
struct ath10k *ar;
};
static inline struct ath10k_usb *ath10k_usb_priv(struct ath10k *ar)
{
return (struct ath10k_usb *)ar->drv_priv;
}
#endif
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