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