xref: /freebsd/sys/contrib/dev/iwlwifi/mvm/rs.c (revision 4f5890a0fb086324a657f3cd7ba1abc57274e0db)
1 /*-
2  * Copyright (c) 2020-2021 The FreeBSD Foundation
3  *
4  * This software was developed by Björn Zeeb under sponsorship from
5  * the FreeBSD Foundation.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 /*
32  * XXX-BZ:
33  * This file is left as a wrapper to make mvm compile and we will only
34  * deal with it on a need basis.  Most newer chipsets do this in firmware.
35  */
36 
37 #include <sys/errno.h>
38 
39 #include "mvm.h"
40 
41 
42 int
43 iwl_mvm_rate_control_register(void)
44 {
45 
46 	return (0);
47 }
48 
49 int
50 iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *sta, bool enable)
51 {
52 
53 	return (0);
54 }
55 
56 void
57 iwl_mvm_rate_control_unregister(void)
58 {
59 }
60 
61 void
62 iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
63     enum nl80211_band band, bool t)
64 {
65 }
66 
67 void
68 iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta, int tid,
69     struct ieee80211_tx_info *ba_info, bool t)
70 {
71 }
72 
73 void
74 rs_update_last_rssi(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
75     struct ieee80211_rx_status *rx_status)
76 {
77 
78 	/*
79 	 * Assumption based on mvm/sta.h is that this should update
80 	 * mvmsta->lq_sta.rs_drv but so far we only saw a iwl_lq_cmd (lq)
81 	 * access in that struct so nowhere to put rssi information.
82 	 * So the only thing would be if this is required internally
83 	 * to functions in this file.
84 	 */
85 }
86 
87 int
88 rs_pretty_print_rate_v1(char *buf, int bufsz, const u32 rate)
89 {
90 
91 	return (0);
92 }
93