1 /**
2  * Copyright (c) 2014 Redpine Signals Inc.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #ifndef __RSI_COMMON_H__
18 #define __RSI_COMMON_H__
19 
20 #include <linux/kthread.h>
21 
22 #define EVENT_WAIT_FOREVER              0
23 #define FIRMWARE_RSI9113                "rs9113_wlan_qspi.rps"
24 #define QUEUE_NOT_FULL                  1
25 #define QUEUE_FULL                      0
26 
27 static inline int rsi_init_event(struct rsi_event *pevent)
28 {
29 	atomic_set(&pevent->event_condition, 1);
30 	init_waitqueue_head(&pevent->event_queue);
31 	return 0;
32 }
33 
34 static inline int rsi_wait_event(struct rsi_event *event, u32 timeout)
35 {
36 	int status = 0;
37 
38 	if (!timeout)
39 		status = wait_event_interruptible(event->event_queue,
40 				(atomic_read(&event->event_condition) == 0));
41 	else
42 		status = wait_event_interruptible_timeout(event->event_queue,
43 				(atomic_read(&event->event_condition) == 0),
44 				timeout);
45 	return status;
46 }
47 
48 static inline void rsi_set_event(struct rsi_event *event)
49 {
50 	atomic_set(&event->event_condition, 0);
51 	wake_up_interruptible(&event->event_queue);
52 }
53 
54 static inline void rsi_reset_event(struct rsi_event *event)
55 {
56 	atomic_set(&event->event_condition, 1);
57 }
58 
59 static inline int rsi_create_kthread(struct rsi_common *common,
60 				     struct rsi_thread *thread,
61 				     void *func_ptr,
62 				     u8 *name)
63 {
64 	init_completion(&thread->completion);
65 	thread->task = kthread_run(func_ptr, common, "%s", name);
66 	if (IS_ERR(thread->task))
67 		return (int)PTR_ERR(thread->task);
68 
69 	return 0;
70 }
71 
72 static inline int rsi_kill_thread(struct rsi_thread *handle)
73 {
74 	atomic_inc(&handle->thread_done);
75 	rsi_set_event(&handle->event);
76 
77 	wait_for_completion(&handle->completion);
78 	return kthread_stop(handle->task);
79 }
80 
81 void rsi_mac80211_detach(struct rsi_hw *hw);
82 u16 rsi_get_connected_channel(struct rsi_hw *adapter);
83 struct rsi_hw *rsi_91x_init(void);
84 void rsi_91x_deinit(struct rsi_hw *adapter);
85 int rsi_read_pkt(struct rsi_common *common, s32 rcv_pkt_len);
86 #endif
87