1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Interrupt bottom half (BH).
4  *
5  * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
6  * Copyright (c) 2010, ST-Ericsson
7  */
8 #ifndef WFX_BH_H
9 #define WFX_BH_H
10 
11 #include <linux/atomic.h>
12 #include <linux/wait.h>
13 #include <linux/completion.h>
14 #include <linux/workqueue.h>
15 
16 struct wfx_dev;
17 
18 struct wfx_hif {
19 	struct work_struct bh;
20 	struct completion ctrl_ready;
21 	wait_queue_head_t tx_buffers_empty;
22 	atomic_t ctrl_reg;
23 	int rx_seqnum;
24 	int tx_seqnum;
25 	int tx_buffers_used;
26 };
27 
28 void wfx_bh_register(struct wfx_dev *wdev);
29 void wfx_bh_unregister(struct wfx_dev *wdev);
30 void wfx_bh_request_rx(struct wfx_dev *wdev);
31 void wfx_bh_request_tx(struct wfx_dev *wdev);
32 void wfx_bh_poll_irq(struct wfx_dev *wdev);
33 
34 #endif
35