1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ */ 2*4882a593Smuzhiyun /* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #ifndef _QTN_FMAC_TRANS_H_ 5*4882a593Smuzhiyun #define _QTN_FMAC_TRANS_H_ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #include <linux/kernel.h> 8*4882a593Smuzhiyun #include <linux/module.h> 9*4882a593Smuzhiyun #include <linux/skbuff.h> 10*4882a593Smuzhiyun #include <linux/mutex.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include "qlink.h" 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #define QTNF_CMD_FLAG_RESP_REQ BIT(0) 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #define QTNF_MAX_CMD_BUF_SIZE 2048 17*4882a593Smuzhiyun #define QTNF_DEF_CMD_HROOM 4 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun struct qtnf_bus; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun struct qtnf_cmd_ctl_node { 22*4882a593Smuzhiyun struct completion cmd_resp_completion; 23*4882a593Smuzhiyun struct sk_buff *resp_skb; 24*4882a593Smuzhiyun u16 seq_num; 25*4882a593Smuzhiyun bool waiting_for_resp; 26*4882a593Smuzhiyun spinlock_t resp_lock; /* lock for resp_skb & waiting_for_resp changes */ 27*4882a593Smuzhiyun }; 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun struct qtnf_qlink_transport { 30*4882a593Smuzhiyun struct qtnf_cmd_ctl_node curr_cmd; 31*4882a593Smuzhiyun struct sk_buff_head event_queue; 32*4882a593Smuzhiyun size_t event_queue_max_len; 33*4882a593Smuzhiyun }; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun void qtnf_trans_init(struct qtnf_bus *bus); 36*4882a593Smuzhiyun void qtnf_trans_free(struct qtnf_bus *bus); 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun int qtnf_trans_send_next_cmd(struct qtnf_bus *bus); 39*4882a593Smuzhiyun int qtnf_trans_handle_rx_ctl_packet(struct qtnf_bus *bus, struct sk_buff *skb); 40*4882a593Smuzhiyun int qtnf_trans_send_cmd_with_resp(struct qtnf_bus *bus, 41*4882a593Smuzhiyun struct sk_buff *cmd_skb, 42*4882a593Smuzhiyun struct sk_buff **response_skb); 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #endif /* _QTN_FMAC_TRANS_H_ */ 45