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1/*
2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
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 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.
15 */
16
17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19#include <linux/debugfs.h>
20#include <linux/uaccess.h>
21#include "wcn36xx.h"
22#include "debug.h"
23#include "pmc.h"
24#include "firmware.h"
25
26#ifdef CONFIG_WCN36XX_DEBUGFS
27
28static ssize_t read_file_bool_bmps(struct file *file, char __user *user_buf,
29 size_t count, loff_t *ppos)
30{
31 struct wcn36xx *wcn = file->private_data;
32 struct wcn36xx_vif *vif_priv = NULL;
33 struct ieee80211_vif *vif = NULL;
34 char buf[3];
35
36 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
37 vif = wcn36xx_priv_to_vif(vif_priv);
38 if (NL80211_IFTYPE_STATION == vif->type) {
39 if (vif_priv->pw_state == WCN36XX_BMPS)
40 buf[0] = '1';
41 else
42 buf[0] = '0';
43 break;
44 }
45 }
46 buf[1] = '\n';
47 buf[2] = 0x00;
48
49 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
50}
51
52static ssize_t write_file_bool_bmps(struct file *file,
53 const char __user *user_buf,
54 size_t count, loff_t *ppos)
55{
56 struct wcn36xx *wcn = file->private_data;
57 struct wcn36xx_vif *vif_priv = NULL;
58 struct ieee80211_vif *vif = NULL;
59
60 char buf[32];
61 int buf_size;
62
63 buf_size = min(count, (sizeof(buf)-1));
64 if (copy_from_user(buf, user_buf, buf_size))
65 return -EFAULT;
66
67 switch (buf[0]) {
68 case 'y':
69 case 'Y':
70 case '1':
71 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
72 vif = wcn36xx_priv_to_vif(vif_priv);
73 if (NL80211_IFTYPE_STATION == vif->type) {
74 wcn36xx_enable_keep_alive_null_packet(wcn, vif);
75 wcn36xx_pmc_enter_bmps_state(wcn, vif);
76 }
77 }
78 break;
79 case 'n':
80 case 'N':
81 case '0':
82 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
83 vif = wcn36xx_priv_to_vif(vif_priv);
84 if (NL80211_IFTYPE_STATION == vif->type)
85 wcn36xx_pmc_exit_bmps_state(wcn, vif);
86 }
87 break;
88 }
89
90 return count;
91}
92
93static const struct file_operations fops_wcn36xx_bmps = {
94 .open = simple_open,
95 .read = read_file_bool_bmps,
96 .write = write_file_bool_bmps,
97};
98
99static ssize_t write_file_dump(struct file *file,
100 const char __user *user_buf,
101 size_t count, loff_t *ppos)
102{
103 struct wcn36xx *wcn = file->private_data;
104 char buf[255], *tmp;
105 int buf_size;
106 u32 arg[WCN36xx_MAX_DUMP_ARGS];
107 int i;
108
109 memset(buf, 0, sizeof(buf));
110 memset(arg, 0, sizeof(arg));
111
112 buf_size = min(count, (sizeof(buf) - 1));
113 if (copy_from_user(buf, user_buf, buf_size))
114 return -EFAULT;
115
116 tmp = buf;
117
118 for (i = 0; i < WCN36xx_MAX_DUMP_ARGS; i++) {
119 char *begin;
120 begin = strsep(&tmp, " ");
121 if (begin == NULL)
122 break;
123
124 if (kstrtos32(begin, 0, &arg[i]) != 0)
125 break;
126 }
127
128 wcn36xx_info("DUMP args is %d %d %d %d %d\n", arg[0], arg[1], arg[2],
129 arg[3], arg[4]);
130 wcn36xx_smd_dump_cmd_req(wcn, arg[0], arg[1], arg[2], arg[3], arg[4]);
131
132 return count;
133}
134
135static const struct file_operations fops_wcn36xx_dump = {
136 .open = simple_open,
137 .write = write_file_dump,
138};
139
140static ssize_t read_file_firmware_feature_caps(struct file *file,
141 char __user *user_buf,
142 size_t count, loff_t *ppos)
143{
144 struct wcn36xx *wcn = file->private_data;
145 size_t len = 0, buf_len = 2048;
146 char *buf;
147 int i;
148 int ret;
149
150 buf = kzalloc(buf_len, GFP_KERNEL);
151 if (!buf)
152 return -ENOMEM;
153
154 mutex_lock(&wcn->hal_mutex);
155 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
156 if (wcn36xx_firmware_get_feat_caps(wcn->fw_feat_caps, i)) {
157 len += scnprintf(buf + len, buf_len - len, "%s\n",
158 wcn36xx_firmware_get_cap_name(i));
159 }
160 if (len >= buf_len)
161 break;
162 }
163 mutex_unlock(&wcn->hal_mutex);
164
165 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
166 kfree(buf);
167
168 return ret;
169}
170
171static const struct file_operations fops_wcn36xx_firmware_feat_caps = {
172 .open = simple_open,
173 .read = read_file_firmware_feature_caps,
174};
175
176#define ADD_FILE(name, mode, fop, priv_data) \
177 do { \
178 struct dentry *d; \
179 d = debugfs_create_file(__stringify(name), \
180 mode, dfs->rootdir, \
181 priv_data, fop); \
182 dfs->file_##name.dentry = d; \
183 if (IS_ERR(d)) { \
184 wcn36xx_warn("Create the debugfs entry failed");\
185 dfs->file_##name.dentry = NULL; \
186 } \
187 } while (0)
188
189
190void wcn36xx_debugfs_init(struct wcn36xx *wcn)
191{
192 struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
193
194 dfs->rootdir = debugfs_create_dir(KBUILD_MODNAME,
195 wcn->hw->wiphy->debugfsdir);
196 if (IS_ERR(dfs->rootdir)) {
197 wcn36xx_warn("Create the debugfs failed\n");
198 dfs->rootdir = NULL;
199 }
200
201 ADD_FILE(bmps_switcher, 0600, &fops_wcn36xx_bmps, wcn);
202 ADD_FILE(dump, 0200, &fops_wcn36xx_dump, wcn);
203 ADD_FILE(firmware_feat_caps, 0200,
204 &fops_wcn36xx_firmware_feat_caps, wcn);
205}
206
207void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
208{
209 struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
210 debugfs_remove_recursive(dfs->rootdir);
211}
212
213#endif /* CONFIG_WCN36XX_DEBUGFS */
1/*
2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
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 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.
15 */
16
17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19#include <linux/debugfs.h>
20#include <linux/uaccess.h>
21#include "wcn36xx.h"
22#include "debug.h"
23#include "pmc.h"
24#include "firmware.h"
25
26#ifdef CONFIG_WCN36XX_DEBUGFS
27
28static ssize_t read_file_bool_bmps(struct file *file, char __user *user_buf,
29 size_t count, loff_t *ppos)
30{
31 struct wcn36xx *wcn = file->private_data;
32 struct wcn36xx_vif *vif_priv = NULL;
33 struct ieee80211_vif *vif = NULL;
34 char buf[3];
35
36 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
37 vif = wcn36xx_priv_to_vif(vif_priv);
38 if (NL80211_IFTYPE_STATION == vif->type) {
39 if (vif_priv->pw_state == WCN36XX_BMPS)
40 buf[0] = '1';
41 else
42 buf[0] = '0';
43 break;
44 }
45 }
46 buf[1] = '\n';
47 buf[2] = 0x00;
48
49 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
50}
51
52static ssize_t write_file_bool_bmps(struct file *file,
53 const char __user *user_buf,
54 size_t count, loff_t *ppos)
55{
56 struct wcn36xx *wcn = file->private_data;
57 struct wcn36xx_vif *vif_priv = NULL;
58 struct ieee80211_vif *vif = NULL;
59
60 char buf[32];
61 int buf_size;
62
63 buf_size = min(count, (sizeof(buf)-1));
64 if (copy_from_user(buf, user_buf, buf_size))
65 return -EFAULT;
66
67 switch (buf[0]) {
68 case 'y':
69 case 'Y':
70 case '1':
71 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
72 vif = wcn36xx_priv_to_vif(vif_priv);
73 if (NL80211_IFTYPE_STATION == vif->type) {
74 wcn36xx_enable_keep_alive_null_packet(wcn, vif);
75 wcn36xx_pmc_enter_bmps_state(wcn, vif);
76 }
77 }
78 break;
79 case 'n':
80 case 'N':
81 case '0':
82 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
83 vif = wcn36xx_priv_to_vif(vif_priv);
84 if (NL80211_IFTYPE_STATION == vif->type)
85 wcn36xx_pmc_exit_bmps_state(wcn, vif);
86 }
87 break;
88 }
89
90 return count;
91}
92
93static const struct file_operations fops_wcn36xx_bmps = {
94 .open = simple_open,
95 .read = read_file_bool_bmps,
96 .write = write_file_bool_bmps,
97};
98
99static ssize_t write_file_dump(struct file *file,
100 const char __user *user_buf,
101 size_t count, loff_t *ppos)
102{
103 struct wcn36xx *wcn = file->private_data;
104 char buf[255], *tmp;
105 int buf_size;
106 u32 arg[WCN36xx_MAX_DUMP_ARGS];
107 int i;
108
109 memset(buf, 0, sizeof(buf));
110 memset(arg, 0, sizeof(arg));
111
112 buf_size = min(count, (sizeof(buf) - 1));
113 if (copy_from_user(buf, user_buf, buf_size))
114 return -EFAULT;
115
116 tmp = buf;
117
118 for (i = 0; i < WCN36xx_MAX_DUMP_ARGS; i++) {
119 char *begin;
120 begin = strsep(&tmp, " ");
121 if (begin == NULL)
122 break;
123
124 if (kstrtos32(begin, 0, &arg[i]) != 0)
125 break;
126 }
127
128 wcn36xx_info("DUMP args is %d %d %d %d %d\n", arg[0], arg[1], arg[2],
129 arg[3], arg[4]);
130 wcn36xx_smd_dump_cmd_req(wcn, arg[0], arg[1], arg[2], arg[3], arg[4]);
131
132 return count;
133}
134
135static const struct file_operations fops_wcn36xx_dump = {
136 .open = simple_open,
137 .write = write_file_dump,
138};
139
140static ssize_t read_file_firmware_feature_caps(struct file *file,
141 char __user *user_buf,
142 size_t count, loff_t *ppos)
143{
144 struct wcn36xx *wcn = file->private_data;
145 size_t len = 0, buf_len = 2048;
146 char *buf;
147 int i;
148 int ret;
149
150 buf = kzalloc(buf_len, GFP_KERNEL);
151 if (!buf)
152 return -ENOMEM;
153
154 mutex_lock(&wcn->hal_mutex);
155 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
156 if (wcn36xx_firmware_get_feat_caps(wcn->fw_feat_caps, i)) {
157 len += scnprintf(buf + len, buf_len - len, "%s\n",
158 wcn36xx_firmware_get_cap_name(i));
159 }
160 if (len >= buf_len)
161 break;
162 }
163 mutex_unlock(&wcn->hal_mutex);
164
165 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
166 kfree(buf);
167
168 return ret;
169}
170
171static const struct file_operations fops_wcn36xx_firmware_feat_caps = {
172 .open = simple_open,
173 .read = read_file_firmware_feature_caps,
174};
175
176#define ADD_FILE(name, mode, fop, priv_data) \
177 do { \
178 struct dentry *d; \
179 d = debugfs_create_file(__stringify(name), \
180 mode, dfs->rootdir, \
181 priv_data, fop); \
182 dfs->file_##name.dentry = d; \
183 if (IS_ERR(d)) { \
184 wcn36xx_warn("Create the debugfs entry failed");\
185 dfs->file_##name.dentry = NULL; \
186 } \
187 } while (0)
188
189
190void wcn36xx_debugfs_init(struct wcn36xx *wcn)
191{
192 struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
193
194 dfs->rootdir = debugfs_create_dir(KBUILD_MODNAME,
195 wcn->hw->wiphy->debugfsdir);
196 if (IS_ERR(dfs->rootdir)) {
197 wcn36xx_warn("Create the debugfs failed\n");
198 dfs->rootdir = NULL;
199 }
200
201 ADD_FILE(bmps_switcher, 0600, &fops_wcn36xx_bmps, wcn);
202 ADD_FILE(dump, 0200, &fops_wcn36xx_dump, wcn);
203 ADD_FILE(firmware_feat_caps, 0200,
204 &fops_wcn36xx_firmware_feat_caps, wcn);
205}
206
207void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
208{
209 struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
210 debugfs_remove_recursive(dfs->rootdir);
211}
212
213#endif /* CONFIG_WCN36XX_DEBUGFS */