2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
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.
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 ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19 #include <linux/debugfs.h>
20 #include <linux/uaccess.h>
25 #ifdef CONFIG_WCN36XX_DEBUGFS
27 static ssize_t read_file_bool_bmps(struct file *file, char __user *user_buf,
28 size_t count, loff_t *ppos)
30 struct wcn36xx *wcn = file->private_data;
31 struct wcn36xx_vif *vif_priv = NULL;
32 struct ieee80211_vif *vif = NULL;
35 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
36 vif = container_of((void *)vif_priv,
39 if (NL80211_IFTYPE_STATION == vif->type) {
40 if (vif_priv->pw_state == WCN36XX_BMPS)
50 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
53 static ssize_t write_file_bool_bmps(struct file *file,
54 const char __user *user_buf,
55 size_t count, loff_t *ppos)
57 struct wcn36xx *wcn = file->private_data;
58 struct wcn36xx_vif *vif_priv = NULL;
59 struct ieee80211_vif *vif = NULL;
64 buf_size = min(count, (sizeof(buf)-1));
65 if (copy_from_user(buf, user_buf, buf_size))
72 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
73 vif = container_of((void *)vif_priv,
76 if (NL80211_IFTYPE_STATION == vif->type) {
77 wcn36xx_enable_keep_alive_null_packet(wcn, vif);
78 wcn36xx_pmc_enter_bmps_state(wcn, vif);
85 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
86 vif = container_of((void *)vif_priv,
89 if (NL80211_IFTYPE_STATION == vif->type)
90 wcn36xx_pmc_exit_bmps_state(wcn, vif);
98 static const struct file_operations fops_wcn36xx_bmps = {
100 .read = read_file_bool_bmps,
101 .write = write_file_bool_bmps,
104 static ssize_t write_file_dump(struct file *file,
105 const char __user *user_buf,
106 size_t count, loff_t *ppos)
108 struct wcn36xx *wcn = file->private_data;
111 u32 arg[WCN36xx_MAX_DUMP_ARGS];
114 memset(buf, 0, sizeof(buf));
115 memset(arg, 0, sizeof(arg));
117 buf_size = min(count, (sizeof(buf) - 1));
118 if (copy_from_user(buf, user_buf, buf_size))
123 for (i = 0; i < WCN36xx_MAX_DUMP_ARGS; i++) {
125 begin = strsep(&tmp, " ");
129 if (kstrtou32(begin, 0, &arg[i]) != 0)
133 wcn36xx_info("DUMP args is %d %d %d %d %d\n", arg[0], arg[1], arg[2],
135 wcn36xx_smd_dump_cmd_req(wcn, arg[0], arg[1], arg[2], arg[3], arg[4]);
140 static const struct file_operations fops_wcn36xx_dump = {
142 .write = write_file_dump,
145 #define ADD_FILE(name, mode, fop, priv_data) \
148 d = debugfs_create_file(__stringify(name), \
149 mode, dfs->rootdir, \
151 dfs->file_##name.dentry = d; \
153 wcn36xx_warn("Create the debugfs entry failed");\
154 dfs->file_##name.dentry = NULL; \
159 void wcn36xx_debugfs_init(struct wcn36xx *wcn)
161 struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
163 dfs->rootdir = debugfs_create_dir(KBUILD_MODNAME,
164 wcn->hw->wiphy->debugfsdir);
165 if (IS_ERR(dfs->rootdir)) {
166 wcn36xx_warn("Create the debugfs failed\n");
170 ADD_FILE(bmps_switcher, S_IRUSR | S_IWUSR,
171 &fops_wcn36xx_bmps, wcn);
172 ADD_FILE(dump, S_IWUSR, &fops_wcn36xx_dump, wcn);
175 void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
177 struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
178 debugfs_remove_recursive(dfs->rootdir);
181 #endif /* CONFIG_WCN36XX_DEBUGFS */