1 /******************************************************************************
2  *
3  * Copyright(c) 2009-2012  Realtek Corporation. All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  *
14  * The full GNU General Public License is included in this distribution in the
15  * file called LICENSE.
16  *
17  * Contact Information:
18  * wlanfae <wlanfae@realtek.com>
19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20  * Hsinchu 300, Taiwan.
21  *
22  *****************************************************************************/
23 
24 #ifndef __RTL_USB_H__
25 #define __RTL_USB_H__
26 
27 #include <linux/skbuff.h>
28 
29 #define RTL_RX_DESC_SIZE		24
30 
31 #define RTL_USB_DEVICE(vend, prod, cfg) \
32 	.match_flags = USB_DEVICE_ID_MATCH_DEVICE, \
33 	.idVendor = (vend), \
34 	.idProduct = (prod), \
35 	.driver_info = (kernel_ulong_t)&(cfg)
36 
37 #define USB_HIGH_SPEED_BULK_SIZE	512
38 #define USB_FULL_SPEED_BULK_SIZE	64
39 
40 
41 #define RTL_USB_MAX_TXQ_NUM		4		/* max tx queue */
42 #define RTL_USB_MAX_EP_NUM		6		/* max ep number */
43 #define RTL_USB_MAX_TX_URBS_NUM		8
44 
45 enum rtl_txq {
46 	/* These definitions shall be consistent with value
47 	 * returned by skb_get_queue_mapping
48 	 *------------------------------------*/
49 	RTL_TXQ_BK,
50 	RTL_TXQ_BE,
51 	RTL_TXQ_VI,
52 	RTL_TXQ_VO,
53 	/*------------------------------------*/
54 	RTL_TXQ_BCN,
55 	RTL_TXQ_MGT,
56 	RTL_TXQ_HI,
57 
58 	/* Must be last */
59 	__RTL_TXQ_NUM,
60 };
61 
62 struct rtl_ep_map {
63 	u32 ep_mapping[__RTL_TXQ_NUM];
64 };
65 
66 struct _trx_info {
67 	struct rtl_usb *rtlusb;
68 	u32 ep_num;
69 };
70 
71 static inline void _rtl_install_trx_info(struct rtl_usb *rtlusb,
72 					 struct sk_buff *skb,
73 					 u32 ep_num)
74 {
75 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
76 	info->rate_driver_data[0] = rtlusb;
77 	info->rate_driver_data[1] = (void *)(__kernel_size_t)ep_num;
78 }
79 
80 
81 /*  Add suspend/resume later */
82 enum rtl_usb_state {
83 	USB_STATE_STOP	= 0,
84 	USB_STATE_START	= 1,
85 };
86 
87 #define IS_USB_STOP(rtlusb_ptr) (USB_STATE_STOP == (rtlusb_ptr)->state)
88 #define IS_USB_START(rtlusb_ptr) (USB_STATE_START == (rtlusb_ptr)->state)
89 #define SET_USB_STOP(rtlusb_ptr) \
90 	do {							\
91 		(rtlusb_ptr)->state = USB_STATE_STOP;		\
92 	} while (0)
93 
94 #define SET_USB_START(rtlusb_ptr)				\
95 	do { \
96 		(rtlusb_ptr)->state = USB_STATE_START;		\
97 	} while (0)
98 
99 struct rtl_usb {
100 	struct usb_device *udev;
101 	struct usb_interface *intf;
102 	enum rtl_usb_state state;
103 
104 	/* Bcn control register setting */
105 	u32 reg_bcn_ctrl_val;
106 	/* for 88/92cu card disable */
107 	u8	disableHWSM;
108 	/*QOS & EDCA */
109 	enum acm_method acm_method;
110 	/* irq  . HIMR,HIMR_EX */
111 	u32 irq_mask[2];
112 	bool irq_enabled;
113 
114 	u16 (*usb_mq_to_hwq)(__le16 fc, u16 mac80211_queue_index);
115 
116 	/* Tx */
117 	u8 out_ep_nums ;
118 	u8 out_queue_sel;
119 	struct rtl_ep_map ep_map;
120 
121 	u32 max_bulk_out_size;
122 	u32 tx_submitted_urbs;
123 	struct sk_buff_head tx_skb_queue[RTL_USB_MAX_EP_NUM];
124 
125 	struct usb_anchor tx_pending[RTL_USB_MAX_EP_NUM];
126 	struct usb_anchor tx_submitted;
127 
128 	struct sk_buff *(*usb_tx_aggregate_hdl)(struct ieee80211_hw *,
129 						struct sk_buff_head *);
130 	int (*usb_tx_post_hdl)(struct ieee80211_hw *,
131 			       struct urb *, struct sk_buff *);
132 	void (*usb_tx_cleanup)(struct ieee80211_hw *, struct sk_buff *);
133 
134 	/* Rx */
135 	u8 in_ep_nums;
136 	u32 in_ep;		/* Bulk IN endpoint number */
137 	u32 rx_max_size;	/* Bulk IN max buffer size */
138 	u32 rx_urb_num;		/* How many Bulk INs are submitted to host. */
139 	struct usb_anchor	rx_submitted;
140 	struct usb_anchor	rx_cleanup_urbs;
141 	struct tasklet_struct   rx_work_tasklet;
142 	struct sk_buff_head	rx_queue;
143 	void (*usb_rx_segregate_hdl)(struct ieee80211_hw *, struct sk_buff *,
144 				     struct sk_buff_head *);
145 	void (*usb_rx_hdl)(struct ieee80211_hw *, struct sk_buff *);
146 };
147 
148 struct rtl_usb_priv {
149 	struct rtl_usb dev;
150 	struct rtl_led_ctl ledctl;
151 };
152 
153 #define rtl_usbpriv(hw)	 (((struct rtl_usb_priv *)(rtl_priv(hw))->priv))
154 #define rtl_usbdev(usbpriv)	(&((usbpriv)->dev))
155 
156 
157 
158 int rtl_usb_probe(struct usb_interface *intf,
159 		  const struct usb_device_id *id,
160 		  struct rtl_hal_cfg *rtl92cu_hal_cfg);
161 void rtl_usb_disconnect(struct usb_interface *intf);
162 int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message);
163 int rtl_usb_resume(struct usb_interface *pusb_intf);
164 
165 #endif
166