xref: /openbmc/linux/drivers/net/wireless/rsi/rsi_usb.h (revision 42bc47b3)
1 /**
2  * @section LICENSE
3  * Copyright (c) 2014 Redpine Signals Inc.
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #ifndef __RSI_USB_INTF__
19 #define __RSI_USB_INTF__
20 
21 #include <linux/usb.h>
22 #include "rsi_main.h"
23 #include "rsi_common.h"
24 
25 #define USB_INTERNAL_REG_1           0x25000
26 #define RSI_USB_READY_MAGIC_NUM      0xab
27 #define FW_STATUS_REG                0x41050012
28 #define RSI_TA_HOLD_REG              0x22000844
29 #define RSI_FW_WDT_DISABLE_REQ	     0x69
30 
31 #define USB_VENDOR_REGISTER_READ     0x15
32 #define USB_VENDOR_REGISTER_WRITE    0x16
33 #define RSI_USB_TX_HEAD_ROOM         128
34 
35 #define MAX_RX_URBS                  2
36 #define MAX_BULK_EP                  8
37 #define WLAN_EP                      1
38 #define BT_EP                        2
39 
40 #define RSI_USB_BUF_SIZE	     4096
41 #define RSI_USB_CTRL_BUF_SIZE	     0x04
42 
43 struct rx_usb_ctrl_block {
44 	u8 *data;
45 	struct urb *rx_urb;
46 	struct sk_buff *rx_skb;
47 	u8 ep_num;
48 };
49 
50 struct rsi_91x_usbdev {
51 	void *priv;
52 	struct rsi_thread rx_thread;
53 	u8 endpoint;
54 	struct usb_device *usbdev;
55 	struct usb_interface *pfunction;
56 	struct rx_usb_ctrl_block rx_cb[MAX_RX_URBS];
57 	u8 *tx_buffer;
58 	__le16 bulkin_size[MAX_BULK_EP];
59 	u8 bulkin_endpoint_addr[MAX_BULK_EP];
60 	__le16 bulkout_size[MAX_BULK_EP];
61 	u8 bulkout_endpoint_addr[MAX_BULK_EP];
62 	u32 tx_blk_size;
63 	u8 write_fail;
64 	struct sk_buff_head rx_q;
65 };
66 
67 static inline int rsi_usb_check_queue_status(struct rsi_hw *adapter, u8 q_num)
68 {
69 	/* In USB, there isn't any need to check the queue status */
70 	return QUEUE_NOT_FULL;
71 }
72 
73 static inline int rsi_usb_event_timeout(struct rsi_hw *adapter)
74 {
75 	return EVENT_WAIT_FOREVER;
76 }
77 
78 void rsi_usb_rx_thread(struct rsi_common *common);
79 #endif
80