1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Portions copyright (C) 2017 Broadcom Limited
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 #include <stdint.h>
20 #include <fcntl.h>
21 #include <sys/socket.h>
22 #include <netlink/genl/genl.h>
23 #include <netlink/genl/family.h>
24 #include <netlink/genl/ctrl.h>
25 #include <linux/rtnetlink.h>
26 #include <netpacket/packet.h>
27 #include <linux/filter.h>
28 #include <linux/errqueue.h>
29
30 #include <linux/pkt_sched.h>
31 #include <netlink/object-api.h>
32 #include <netlink/netlink.h>
33 #include <netlink/socket.h>
34 #include <netlink/handlers.h>
35
36 #include "sync.h"
37
38 #define LOG_TAG "WifiHAL"
39
40 #include <log/log.h>
41
42 #include "wifi_hal.h"
43 #include "common.h"
44 #include "cpp_bindings.h"
45
46 enum {
47 LSTATS_SUBCMD_GET_INFO = ANDROID_NL80211_SUBCMD_LSTATS_RANGE_START,
48 };
49
50 class GetLinkStatsCommand : public WifiCommand
51 {
52 wifi_stats_result_handler mHandler;
53 public:
GetLinkStatsCommand(wifi_interface_handle iface,wifi_stats_result_handler handler)54 GetLinkStatsCommand(wifi_interface_handle iface, wifi_stats_result_handler handler)
55 : WifiCommand("GetLinkStatsCommand", iface, 0), mHandler(handler)
56 { }
57
create()58 virtual int create() {
59 // ALOGI("Creating message to get link statistics; iface = %d", mIfaceInfo->id);
60
61 int ret = mMsg.create(GOOGLE_OUI, LSTATS_SUBCMD_GET_INFO);
62 if (ret < 0) {
63 ALOGE("Failed to create %x - %d", LSTATS_SUBCMD_GET_INFO, ret);
64 return ret;
65 }
66
67 return ret;
68 }
69
70 protected:
handleResponse(WifiEvent & reply)71 virtual int handleResponse(WifiEvent& reply) {
72
73 // ALOGI("In GetLinkStatsCommand::handleResponse");
74
75 if (reply.get_cmd() != NL80211_CMD_VENDOR) {
76 ALOGD("Ignoring reply with cmd = %d", reply.get_cmd());
77 return NL_SKIP;
78 }
79
80 int id = reply.get_vendor_id();
81 int subcmd = reply.get_vendor_subcmd();
82
83 // ALOGI("Id = %0x, subcmd = %d", id, subcmd);
84
85 void *data = reply.get_vendor_data();
86 int len = reply.get_vendor_data_len();
87 wifi_radio_stat *radio_stat = (wifi_radio_stat *)data;
88 if (!radio_stat) {
89 ALOGE("Invalid stats pointer received");
90 return NL_SKIP;
91 }
92 radio_stat->tx_time_per_levels = (u32*)((char*)data + sizeof(wifi_radio_stat) + sizeof(wifi_iface_stat));
93 if (radio_stat->num_channels > 11) {
94 ALOGE("Incorrect number of channels = %d", radio_stat->num_channels);
95 // dump data before num_channels
96 ALOGE("radio: = %d", radio_stat->radio);
97 ALOGE("on_time: = %d", radio_stat->on_time);
98 ALOGE("tx_time: = %d", radio_stat->tx_time);
99 ALOGE("rx_time: = %d", radio_stat->rx_time);
100 ALOGE("on_time_scan: = %d", radio_stat->on_time_scan);
101 ALOGE("on_time_nbd: = %d", radio_stat->on_time_nbd);
102 ALOGE("on_time_gscan: = %d", radio_stat->on_time_gscan);
103 ALOGE("on_time_pno_scan: = %d", radio_stat->on_time_pno_scan);
104 ALOGE("on_time_hs20: = %d", radio_stat->on_time_hs20);
105 return NL_SKIP;
106 }
107 wifi_iface_stat *iface_stat = (wifi_iface_stat *)((char* )data + sizeof(wifi_radio_stat));
108
109 if(*mHandler.on_link_stats_results == NULL) {
110 ALOGE("*mHandler.on_link_stats_results is NULL");
111 } else {
112 (*mHandler.on_link_stats_results)(id, iface_stat, 1, radio_stat);
113 }
114 return NL_OK;
115 }
116
117 };
118
wifi_get_link_stats(wifi_request_id id,wifi_interface_handle iface,wifi_stats_result_handler handler)119 wifi_error wifi_get_link_stats(wifi_request_id id,
120 wifi_interface_handle iface, wifi_stats_result_handler handler)
121 {
122 GetLinkStatsCommand command(iface, handler);
123 return (wifi_error) command.requestResponse();
124 }
125
wifi_set_link_stats(wifi_interface_handle,wifi_link_layer_params)126 wifi_error wifi_set_link_stats(
127 wifi_interface_handle /* iface */, wifi_link_layer_params /* params */)
128 {
129 /* Return success here since bcom HAL does not need set link stats. */
130 return WIFI_SUCCESS;
131 }
132
wifi_clear_link_stats(wifi_interface_handle,u32,u32 *,u8,u8 *)133 wifi_error wifi_clear_link_stats(
134 wifi_interface_handle /* iface */, u32 /* stats_clear_req_mask */,
135 u32 * /* stats_clear_rsp_mask */, u8 /* stop_req */, u8 * /* stop_rsp */)
136 {
137 /* Return success here since bcom HAL does not support clear link stats. */
138 return WIFI_SUCCESS;
139 }
140