1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0+
2*4882a593Smuzhiyun /* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
3*4882a593Smuzhiyun
4*4882a593Smuzhiyun #include "util.h"
5*4882a593Smuzhiyun #include "qtn_hw_ids.h"
6*4882a593Smuzhiyun
qtnf_sta_list_init(struct qtnf_sta_list * list)7*4882a593Smuzhiyun void qtnf_sta_list_init(struct qtnf_sta_list *list)
8*4882a593Smuzhiyun {
9*4882a593Smuzhiyun if (unlikely(!list))
10*4882a593Smuzhiyun return;
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun INIT_LIST_HEAD(&list->head);
13*4882a593Smuzhiyun atomic_set(&list->size, 0);
14*4882a593Smuzhiyun }
15*4882a593Smuzhiyun
qtnf_sta_list_lookup(struct qtnf_sta_list * list,const u8 * mac)16*4882a593Smuzhiyun struct qtnf_sta_node *qtnf_sta_list_lookup(struct qtnf_sta_list *list,
17*4882a593Smuzhiyun const u8 *mac)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun struct qtnf_sta_node *node;
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun if (unlikely(!mac))
22*4882a593Smuzhiyun return NULL;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun list_for_each_entry(node, &list->head, list) {
25*4882a593Smuzhiyun if (ether_addr_equal(node->mac_addr, mac))
26*4882a593Smuzhiyun return node;
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun return NULL;
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun
qtnf_sta_list_lookup_index(struct qtnf_sta_list * list,size_t index)32*4882a593Smuzhiyun struct qtnf_sta_node *qtnf_sta_list_lookup_index(struct qtnf_sta_list *list,
33*4882a593Smuzhiyun size_t index)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun struct qtnf_sta_node *node;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun if (qtnf_sta_list_size(list) <= index)
38*4882a593Smuzhiyun return NULL;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun list_for_each_entry(node, &list->head, list) {
41*4882a593Smuzhiyun if (index-- == 0)
42*4882a593Smuzhiyun return node;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun return NULL;
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun
qtnf_sta_list_add(struct qtnf_vif * vif,const u8 * mac)48*4882a593Smuzhiyun struct qtnf_sta_node *qtnf_sta_list_add(struct qtnf_vif *vif,
49*4882a593Smuzhiyun const u8 *mac)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun struct qtnf_sta_list *list = &vif->sta_list;
52*4882a593Smuzhiyun struct qtnf_sta_node *node;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun if (unlikely(!mac))
55*4882a593Smuzhiyun return NULL;
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun node = qtnf_sta_list_lookup(list, mac);
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun if (node)
60*4882a593Smuzhiyun goto done;
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun node = kzalloc(sizeof(*node), GFP_KERNEL);
63*4882a593Smuzhiyun if (unlikely(!node))
64*4882a593Smuzhiyun goto done;
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun ether_addr_copy(node->mac_addr, mac);
67*4882a593Smuzhiyun list_add_tail(&node->list, &list->head);
68*4882a593Smuzhiyun atomic_inc(&list->size);
69*4882a593Smuzhiyun ++vif->generation;
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun done:
72*4882a593Smuzhiyun return node;
73*4882a593Smuzhiyun }
74*4882a593Smuzhiyun
qtnf_sta_list_del(struct qtnf_vif * vif,const u8 * mac)75*4882a593Smuzhiyun bool qtnf_sta_list_del(struct qtnf_vif *vif, const u8 *mac)
76*4882a593Smuzhiyun {
77*4882a593Smuzhiyun struct qtnf_sta_list *list = &vif->sta_list;
78*4882a593Smuzhiyun struct qtnf_sta_node *node;
79*4882a593Smuzhiyun bool ret = false;
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun node = qtnf_sta_list_lookup(list, mac);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun if (node) {
84*4882a593Smuzhiyun list_del(&node->list);
85*4882a593Smuzhiyun atomic_dec(&list->size);
86*4882a593Smuzhiyun kfree(node);
87*4882a593Smuzhiyun ++vif->generation;
88*4882a593Smuzhiyun ret = true;
89*4882a593Smuzhiyun }
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun return ret;
92*4882a593Smuzhiyun }
93*4882a593Smuzhiyun
qtnf_sta_list_free(struct qtnf_sta_list * list)94*4882a593Smuzhiyun void qtnf_sta_list_free(struct qtnf_sta_list *list)
95*4882a593Smuzhiyun {
96*4882a593Smuzhiyun struct qtnf_sta_node *node, *tmp;
97*4882a593Smuzhiyun
98*4882a593Smuzhiyun atomic_set(&list->size, 0);
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun list_for_each_entry_safe(node, tmp, &list->head, list) {
101*4882a593Smuzhiyun list_del(&node->list);
102*4882a593Smuzhiyun kfree(node);
103*4882a593Smuzhiyun }
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun INIT_LIST_HEAD(&list->head);
106*4882a593Smuzhiyun }
107*4882a593Smuzhiyun
qtnf_chipid_to_string(unsigned long chip_id)108*4882a593Smuzhiyun const char *qtnf_chipid_to_string(unsigned long chip_id)
109*4882a593Smuzhiyun {
110*4882a593Smuzhiyun switch (chip_id) {
111*4882a593Smuzhiyun case QTN_CHIP_ID_TOPAZ:
112*4882a593Smuzhiyun return "Topaz";
113*4882a593Smuzhiyun case QTN_CHIP_ID_PEARL:
114*4882a593Smuzhiyun return "Pearl revA";
115*4882a593Smuzhiyun case QTN_CHIP_ID_PEARL_B:
116*4882a593Smuzhiyun return "Pearl revB";
117*4882a593Smuzhiyun case QTN_CHIP_ID_PEARL_C:
118*4882a593Smuzhiyun return "Pearl revC";
119*4882a593Smuzhiyun default:
120*4882a593Smuzhiyun return "unknown";
121*4882a593Smuzhiyun }
122*4882a593Smuzhiyun }
123*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(qtnf_chipid_to_string);
124