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 TA_LOAD_ADDRESS 0x00 24 #define FIRMWARE_RSI9113 "rsi_91x.fw" 25 #define QUEUE_NOT_FULL 1 26 #define QUEUE_FULL 0 27 28 static inline int rsi_init_event(struct rsi_event *pevent) 29 { 30 atomic_set(&pevent->event_condition, 1); 31 init_waitqueue_head(&pevent->event_queue); 32 return 0; 33 } 34 35 static inline int rsi_wait_event(struct rsi_event *event, u32 timeout) 36 { 37 int status = 0; 38 39 if (!timeout) 40 status = wait_event_interruptible(event->event_queue, 41 (atomic_read(&event->event_condition) == 0)); 42 else 43 status = wait_event_interruptible_timeout(event->event_queue, 44 (atomic_read(&event->event_condition) == 0), 45 timeout); 46 return status; 47 } 48 49 static inline void rsi_set_event(struct rsi_event *event) 50 { 51 atomic_set(&event->event_condition, 0); 52 wake_up_interruptible(&event->event_queue); 53 } 54 55 static inline void rsi_reset_event(struct rsi_event *event) 56 { 57 atomic_set(&event->event_condition, 1); 58 } 59 60 static inline int rsi_create_kthread(struct rsi_common *common, 61 struct rsi_thread *thread, 62 void *func_ptr, 63 u8 *name) 64 { 65 init_completion(&thread->completion); 66 thread->task = kthread_run(func_ptr, common, "%s", name); 67 if (IS_ERR(thread->task)) 68 return (int)PTR_ERR(thread->task); 69 70 return 0; 71 } 72 73 static inline int rsi_kill_thread(struct rsi_thread *handle) 74 { 75 atomic_inc(&handle->thread_done); 76 rsi_set_event(&handle->event); 77 78 wait_for_completion(&handle->completion); 79 return kthread_stop(handle->task); 80 } 81 82 void rsi_mac80211_detach(struct rsi_hw *hw); 83 u16 rsi_get_connected_channel(struct rsi_hw *adapter); 84 struct rsi_hw *rsi_91x_init(void); 85 void rsi_91x_deinit(struct rsi_hw *adapter); 86 int rsi_read_pkt(struct rsi_common *common, s32 rcv_pkt_len); 87 #endif 88