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