1/* SPDX-License-Identifier: GPL-2.0+ */
 2/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
 3
 4#ifndef _QTN_FMAC_TRANS_H_
 5#define _QTN_FMAC_TRANS_H_
 6
 7#include <linux/kernel.h>
 8#include <linux/module.h>
 9#include <linux/skbuff.h>
10#include <linux/mutex.h>
11
12#include "qlink.h"
13
14#define QTNF_CMD_FLAG_RESP_REQ		BIT(0)
15
16#define QTNF_MAX_CMD_BUF_SIZE	2048
17#define QTNF_DEF_CMD_HROOM	4
18
19struct qtnf_bus;
20
21struct qtnf_cmd_ctl_node {
22	struct completion cmd_resp_completion;
23	struct sk_buff *resp_skb;
24	u16 seq_num;
25	bool waiting_for_resp;
26	spinlock_t resp_lock; /* lock for resp_skb & waiting_for_resp changes */
27};
28
29struct qtnf_qlink_transport {
30	struct qtnf_cmd_ctl_node curr_cmd;
31	struct sk_buff_head event_queue;
32	size_t event_queue_max_len;
33};
34
35void qtnf_trans_init(struct qtnf_bus *bus);
36void qtnf_trans_free(struct qtnf_bus *bus);
37
38int qtnf_trans_send_next_cmd(struct qtnf_bus *bus);
39int qtnf_trans_handle_rx_ctl_packet(struct qtnf_bus *bus, struct sk_buff *skb);
40int qtnf_trans_send_cmd_with_resp(struct qtnf_bus *bus,
41				  struct sk_buff *cmd_skb,
42				  struct sk_buff **response_skb);
43
44#endif /* _QTN_FMAC_TRANS_H_ */