usb.h

  1/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
  2/* Copyright(c) 2018-2019  Realtek Corporation
  3 */
  4
  5#ifndef __RTW_USB_H_
  6#define __RTW_USB_H_
  7
  8#define FW_8192C_START_ADDRESS		0x1000
  9#define FW_8192C_END_ADDRESS		0x5fff
 10
 11#define RTW_USB_MAX_RXTX_COUNT		128
 12#define RTW_USB_VENQT_MAX_BUF_SIZE	254
 13#define MAX_USBCTRL_VENDORREQ_TIMES	10
 14
 15#define RTW_USB_CMD_READ		0xc0
 16#define RTW_USB_CMD_WRITE		0x40
 17#define RTW_USB_CMD_REQ			0x05
 18
 19#define RTW_USB_VENQT_CMD_IDX		0x00
 20
 21#define RTW_USB_TX_SEL_HQ		BIT(0)
 22#define RTW_USB_TX_SEL_LQ		BIT(1)
 23#define RTW_USB_TX_SEL_NQ		BIT(2)
 24#define RTW_USB_TX_SEL_EQ		BIT(3)
 25
 26#define RTW_USB_BULK_IN_ADDR		0x80
 27#define RTW_USB_INT_IN_ADDR		0x81
 28
 29#define RTW_USB_HW_QUEUE_ENTRY		8
 30
 31#define RTW_USB_PACKET_OFFSET_SZ	8
 32#define RTW_USB_MAX_XMITBUF_SZ		(1024 * 20)
 33#define RTW_USB_MAX_RECVBUF_SZ		32768
 34
 35#define RTW_USB_RECVBUFF_ALIGN_SZ	8
 36
 37#define RTW_USB_RXAGG_SIZE		6
 38#define RTW_USB_RXAGG_TIMEOUT		10
 39
 40#define RTW_USB_RXCB_NUM		4
 41#define RTW_USB_RX_SKB_NUM		8
 42
 43#define RTW_USB_EP_MAX			4
 44
 45#define TX_DESC_QSEL_MAX		20
 46
 47#define RTW_USB_VENDOR_ID_REALTEK	0x0bda
 48
 49static inline struct rtw_usb *rtw_get_usb_priv(struct rtw_dev *rtwdev)
 50{
 51	return (struct rtw_usb *)rtwdev->priv;
 52}
 53
 54struct rx_usb_ctrl_block {
 55	struct rtw_dev *rtwdev;
 56	struct urb *rx_urb;
 57	struct sk_buff *rx_skb;
 58};
 59
 60struct rtw_usb_tx_data {
 61	u8 sn;
 62};
 63
 64struct rtw_usb {
 65	struct rtw_dev *rtwdev;
 66	struct usb_device *udev;
 67
 68	/* protects usb_data_index */
 69	spinlock_t usb_lock;
 70	__le32 *usb_data;
 71	unsigned int usb_data_index;
 72
 73	u8 pipe_interrupt;
 74	u8 pipe_in;
 75	u8 out_ep[RTW_USB_EP_MAX];
 76	int qsel_to_ep[TX_DESC_QSEL_MAX];
 77
 78	struct workqueue_struct *txwq, *rxwq;
 79
 80	struct sk_buff_head tx_queue[RTW_USB_EP_MAX];
 81	struct work_struct tx_work;
 82
 83	struct rx_usb_ctrl_block rx_cb[RTW_USB_RXCB_NUM];
 84	struct sk_buff_head rx_queue;
 85	struct sk_buff_head rx_free_queue;
 86	struct work_struct rx_work;
 87	struct work_struct rx_urb_work;
 88};
 89
 90static inline struct rtw_usb_tx_data *rtw_usb_get_tx_data(struct sk_buff *skb)
 91{
 92	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 93
 94	BUILD_BUG_ON(sizeof(struct rtw_usb_tx_data) >
 95		     sizeof(info->status.status_driver_data));
 96
 97	return (struct rtw_usb_tx_data *)info->status.status_driver_data;
 98}
 99
100int rtw_usb_probe(struct usb_interface *intf, const struct usb_device_id *id);
101void rtw_usb_disconnect(struct usb_interface *intf);
102
103#endif