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 42 #define RTW_USB_EP_MAX 4 43 44 #define TX_DESC_QSEL_MAX 20 45 46 #define RTW_USB_VENDOR_ID_REALTEK 0x0bda 47 48 static inline struct rtw_usb *rtw_get_usb_priv(struct rtw_dev *rtwdev) 49 { 50 return (struct rtw_usb *)rtwdev->priv; 51 } 52 53 struct rx_usb_ctrl_block { 54 struct rtw_dev *rtwdev; 55 struct urb *rx_urb; 56 struct sk_buff *rx_skb; 57 }; 58 59 struct rtw_usb_tx_data { 60 u8 sn; 61 }; 62 63 struct rtw_usb { 64 struct rtw_dev *rtwdev; 65 struct usb_device *udev; 66 67 /* protects usb_data_index */ 68 spinlock_t usb_lock; 69 __le32 *usb_data; 70 unsigned int usb_data_index; 71 72 u8 pipe_interrupt; 73 u8 pipe_in; 74 u8 out_ep[RTW_USB_EP_MAX]; 75 int qsel_to_ep[TX_DESC_QSEL_MAX]; 76 77 struct workqueue_struct *txwq, *rxwq; 78 79 struct sk_buff_head tx_queue[RTW_USB_EP_MAX]; 80 struct work_struct tx_work; 81 82 struct rx_usb_ctrl_block rx_cb[RTW_USB_RXCB_NUM]; 83 struct sk_buff_head rx_queue; 84 struct work_struct rx_work; 85 }; 86 87 static inline struct rtw_usb_tx_data *rtw_usb_get_tx_data(struct sk_buff *skb) 88 { 89 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 90 91 BUILD_BUG_ON(sizeof(struct rtw_usb_tx_data) > 92 sizeof(info->status.status_driver_data)); 93 94 return (struct rtw_usb_tx_data *)info->status.status_driver_data; 95 } 96 97 int rtw_usb_probe(struct usb_interface *intf, const struct usb_device_id *id); 98 void rtw_usb_disconnect(struct usb_interface *intf); 99 100 #endif 101