1 /*
2 * Copyright (c) 2021, 2023 Qualcomm Innovation Center, Inc. All rights reserved.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 /**
18 * DOC: wlan_hdd_sysfs_bmiss.c
19 *
20 * Implementation for creating sysfs file bmiss
21 */
22
23 #include <wlan_hdd_includes.h>
24 #include <wlan_hdd_sysfs.h>
25 #include "osif_vdev_sync.h"
26 #include <wlan_hdd_sysfs_bmiss.h>
27 #include <wlan_hdd_stats.h>
28 #include <wlan_cp_stats_mc_ucfg_api.h>
29
30 static struct infra_cp_stats_event*
wlan_hdd_get_bmiss(struct hdd_adapter * adapter)31 wlan_hdd_get_bmiss(struct hdd_adapter *adapter)
32 {
33 struct hdd_station_ctx *hdd_sta_ctx;
34 uint8_t peer_mac[QDF_MAC_ADDR_SIZE];
35 int errno;
36
37 hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter->deflink);
38 if (!hdd_sta_ctx) {
39 hdd_debug("hdd_sta_ctx received NULL");
40 return NULL;
41 }
42 qdf_mem_copy(peer_mac, hdd_sta_ctx->conn_info.bssid.bytes,
43 QDF_MAC_ADDR_SIZE);
44 return wlan_cfg80211_mc_bmiss_get_infra_cp_stats(adapter->deflink->vdev,
45 peer_mac, &errno);
46 }
47
48 static ssize_t
__hdd_sysfs_bmiss_show(struct net_device * net_dev,char * buf)49 __hdd_sysfs_bmiss_show(struct net_device *net_dev, char *buf)
50 {
51 struct hdd_adapter *adapter;
52 struct hdd_context *hdd_ctx;
53 struct infra_cp_stats_event *ev_ptr;
54 ssize_t ret = 0;
55 int idx = 0;
56
57 adapter = netdev_priv(net_dev);
58 if (hdd_validate_adapter(adapter))
59 return -EINVAL;
60
61 hdd_ctx = WLAN_HDD_GET_CTX(adapter);
62 ret = wlan_hdd_validate_context(hdd_ctx);
63 if (ret)
64 return ret;
65
66 if (!wlan_hdd_validate_modules_state(hdd_ctx))
67 return -EINVAL;
68
69 ev_ptr = wlan_hdd_get_bmiss(adapter);
70 if (!ev_ptr) {
71 hdd_err_rl("GET_BMISS failed");
72 return ret;
73 }
74
75 ret = scnprintf(buf, PAGE_SIZE, "num_pre_bmiss:%u\n",
76 ev_ptr->bmiss_infra_cp_stats->num_pre_bmiss);
77 if (ret <= 0)
78 return ret;
79
80 for (idx = 0; idx < BMISS_STATS_RSSI_SAMPLES_MAX; idx++) {
81 if ((PAGE_SIZE - ret) <= 0)
82 return ret;
83
84 ret += scnprintf(
85 buf + ret, PAGE_SIZE - ret,
86 "rssi_sample%d-rssi:%d\n", idx,
87 ev_ptr->bmiss_infra_cp_stats->rssi_samples[idx].rssi);
88 if ((PAGE_SIZE - ret) <= 0)
89 return ret;
90
91 ret += scnprintf(
92 buf + ret, PAGE_SIZE - ret,
93 "rssi_sample%d-sample_time:%u\n", idx,
94 ev_ptr->bmiss_infra_cp_stats->rssi_samples[idx].sample_time);
95 }
96 if ((PAGE_SIZE - ret) <= 0)
97 return ret;
98
99 ret += scnprintf(buf + ret, PAGE_SIZE - ret,
100 "rssi_sample_curr_index:%u\n"
101 "num_first_bmiss:%u\n"
102 "num_final_bmiss:%u\n"
103 "num_null_sent_in_first_bmiss:%u\n"
104 "num_null_failed_in_first_bmiss:%u\n"
105 "num_null_sent_in_final_bmiss:%u\n"
106 "num_null_failed_in_final_bmiss:%u\n"
107 "cons_bmiss_stats.num_of_bmiss_sequences:%u\n"
108 "cons_bmiss_stats.num_bitmask_wraparound:%u\n"
109 "cons_bmiss_stats.num_bcn_hist_lost:%u\n",
110 ev_ptr->bmiss_infra_cp_stats->rssi_sample_curr_index,
111 ev_ptr->bmiss_infra_cp_stats->num_first_bmiss,
112 ev_ptr->bmiss_infra_cp_stats->num_final_bmiss,
113 ev_ptr->bmiss_infra_cp_stats->num_null_sent_in_first_bmiss,
114 ev_ptr->bmiss_infra_cp_stats->num_null_failed_in_first_bmiss,
115 ev_ptr->bmiss_infra_cp_stats->num_null_sent_in_final_bmiss,
116 ev_ptr->bmiss_infra_cp_stats->num_null_failed_in_final_bmiss,
117 ev_ptr->bmiss_infra_cp_stats->cons_bmiss_stats.num_of_bmiss_sequences,
118 ev_ptr->bmiss_infra_cp_stats->cons_bmiss_stats.num_bitmask_wraparound,
119 ev_ptr->bmiss_infra_cp_stats->cons_bmiss_stats.num_bcn_hist_lost);
120
121 qdf_mem_free(ev_ptr->bmiss_infra_cp_stats);
122 qdf_mem_free(ev_ptr);
123 return ret;
124 }
125
126 static ssize_t
hdd_sysfs_bmiss_show(struct device * dev,struct device_attribute * attr,char * buf)127 hdd_sysfs_bmiss_show(struct device *dev, struct device_attribute *attr,
128 char *buf)
129 {
130 struct net_device *net_dev;
131 struct osif_vdev_sync *vdev_sync;
132 ssize_t err_size;
133
134 net_dev = container_of(dev, struct net_device, dev);
135 err_size = osif_vdev_sync_op_start(net_dev, &vdev_sync);
136 if (err_size)
137 return err_size;
138
139 err_size = __hdd_sysfs_bmiss_show(net_dev, buf);
140 osif_vdev_sync_op_stop(vdev_sync);
141 return err_size;
142 }
143
144 static DEVICE_ATTR(bmiss, 0440, hdd_sysfs_bmiss_show, NULL);
145
hdd_sysfs_bmiss_create(struct hdd_adapter * adapter)146 int hdd_sysfs_bmiss_create(struct hdd_adapter *adapter)
147 {
148 int error;
149
150 error = device_create_file(&adapter->dev->dev,
151 &dev_attr_bmiss);
152 if (!error)
153 hdd_err("could not create bmiss sysfs file");
154 return error;
155 }
156
hdd_sysfs_bmiss_destroy(struct hdd_adapter * adapter)157 void hdd_sysfs_bmiss_destroy(struct hdd_adapter *adapter)
158 {
159 device_remove_file(&adapter->dev->dev, &dev_attr_bmiss);
160 }
161
162