]>
Commit | Line | Data |
---|---|---|
712b6cf5 TW |
1 | /****************************************************************************** |
2 | * | |
3 | * GPL LICENSE SUMMARY | |
4 | * | |
5 | * Copyright(c) 2008 Intel Corporation. All rights reserved. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of version 2 of the GNU General Public License as | |
9 | * published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
19 | * USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution | |
22 | * in the file called LICENSE.GPL. | |
23 | * | |
24 | * Contact Information: | |
25 | * Tomas Winkler <tomas.winkler@intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | *****************************************************************************/ | |
28 | ||
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/debugfs.h> | |
32 | ||
33 | #include <linux/ieee80211.h> | |
34 | #include <net/mac80211.h> | |
35 | ||
36 | ||
37 | #include "iwl-4965.h" | |
38 | #include "iwl-debug.h" | |
fee1247a | 39 | #include "iwl-core.h" |
3395f6e9 | 40 | #include "iwl-io.h" |
712b6cf5 TW |
41 | |
42 | ||
43 | /* create and remove of files */ | |
44 | #define DEBUGFS_ADD_DIR(name, parent) do { \ | |
45 | dbgfs->dir_##name = debugfs_create_dir(#name, parent); \ | |
46 | if (!(dbgfs->dir_##name)) \ | |
47 | goto err; \ | |
48 | } while (0) | |
49 | ||
50 | #define DEBUGFS_ADD_FILE(name, parent) do { \ | |
51 | dbgfs->dbgfs_##parent##_files.file_##name = \ | |
52 | debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \ | |
53 | &iwl_dbgfs_##name##_ops); \ | |
54 | if (!(dbgfs->dbgfs_##parent##_files.file_##name)) \ | |
55 | goto err; \ | |
56 | } while (0) | |
57 | ||
58 | #define DEBUGFS_REMOVE(name) do { \ | |
59 | debugfs_remove(name); \ | |
60 | name = NULL; \ | |
61 | } while (0); | |
62 | ||
63 | /* file operation */ | |
64 | #define DEBUGFS_READ_FUNC(name) \ | |
65 | static ssize_t iwl_dbgfs_##name##_read(struct file *file, \ | |
66 | char __user *user_buf, \ | |
67 | size_t count, loff_t *ppos); | |
68 | ||
69 | #define DEBUGFS_WRITE_FUNC(name) \ | |
70 | static ssize_t iwl_dbgfs_##name##_write(struct file *file, \ | |
71 | const char __user *user_buf, \ | |
72 | size_t count, loff_t *ppos); | |
73 | ||
74 | ||
75 | static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file) | |
76 | { | |
77 | file->private_data = inode->i_private; | |
78 | return 0; | |
79 | } | |
80 | ||
81 | #define DEBUGFS_READ_FILE_OPS(name) \ | |
82 | DEBUGFS_READ_FUNC(name); \ | |
83 | static const struct file_operations iwl_dbgfs_##name##_ops = { \ | |
84 | .read = iwl_dbgfs_##name##_read, \ | |
85 | .open = iwl_dbgfs_open_file_generic, \ | |
86 | }; | |
87 | ||
88 | #define DEBUGFS_READ_WRITE_FILE_OPS(name) \ | |
89 | DEBUGFS_READ_FUNC(name); \ | |
90 | DEBUGFS_WRITE_FUNC(name); \ | |
91 | static const struct file_operations iwl_dbgfs_##name##_ops = { \ | |
92 | .write = iwl_dbgfs_##name##_write, \ | |
93 | .read = iwl_dbgfs_##name##_read, \ | |
94 | .open = iwl_dbgfs_open_file_generic, \ | |
95 | }; | |
96 | ||
97 | ||
98 | static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file, | |
99 | char __user *user_buf, | |
100 | size_t count, loff_t *ppos) { | |
101 | ||
102 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
103 | char buf[256]; | |
104 | int pos = 0; | |
db0589f3 | 105 | const size_t bufsz = sizeof(buf); |
712b6cf5 | 106 | |
db0589f3 AK |
107 | pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n", |
108 | priv->tx_stats[0].cnt); | |
109 | pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n", | |
110 | priv->tx_stats[1].cnt); | |
111 | pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n", | |
112 | priv->tx_stats[2].cnt); | |
712b6cf5 TW |
113 | |
114 | return simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
115 | } | |
116 | ||
117 | static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file, | |
118 | char __user *user_buf, | |
119 | size_t count, loff_t *ppos) { | |
120 | ||
121 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
122 | char buf[256]; | |
123 | int pos = 0; | |
db0589f3 | 124 | const size_t bufsz = sizeof(buf); |
712b6cf5 | 125 | |
db0589f3 AK |
126 | pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n", |
127 | priv->rx_stats[0].cnt); | |
128 | pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n", | |
129 | priv->rx_stats[1].cnt); | |
130 | pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n", | |
131 | priv->rx_stats[2].cnt); | |
712b6cf5 TW |
132 | |
133 | return simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
134 | } | |
135 | ||
136 | #define BYTE1_MASK 0x000000ff; | |
137 | #define BYTE2_MASK 0x0000ffff; | |
138 | #define BYTE3_MASK 0x00ffffff; | |
139 | static ssize_t iwl_dbgfs_sram_read(struct file *file, | |
140 | char __user *user_buf, | |
141 | size_t count, loff_t *ppos) | |
142 | { | |
143 | u32 val; | |
144 | char buf[1024]; | |
145 | ssize_t ret; | |
146 | int i; | |
147 | int pos = 0; | |
148 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
db0589f3 | 149 | const size_t bufsz = sizeof(buf); |
712b6cf5 TW |
150 | |
151 | printk(KERN_DEBUG "offset is: 0x%x\tlen is: 0x%x\n", | |
152 | priv->dbgfs->sram_offset, priv->dbgfs->sram_len); | |
153 | ||
3395f6e9 | 154 | iwl_grab_nic_access(priv); |
712b6cf5 | 155 | for (i = priv->dbgfs->sram_len; i > 0; i -= 4) { |
3395f6e9 | 156 | val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \ |
712b6cf5 TW |
157 | priv->dbgfs->sram_len - i); |
158 | if (i < 4) { | |
159 | switch (i) { | |
160 | case 1: | |
161 | val &= BYTE1_MASK; | |
162 | break; | |
163 | case 2: | |
164 | val &= BYTE2_MASK; | |
165 | break; | |
166 | case 3: | |
167 | val &= BYTE3_MASK; | |
168 | break; | |
169 | } | |
170 | } | |
db0589f3 | 171 | pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val); |
712b6cf5 | 172 | } |
db0589f3 | 173 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); |
3395f6e9 | 174 | iwl_release_nic_access(priv); |
712b6cf5 TW |
175 | |
176 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
177 | return ret; | |
178 | } | |
179 | ||
180 | static ssize_t iwl_dbgfs_sram_write(struct file *file, | |
181 | const char __user *user_buf, | |
182 | size_t count, loff_t *ppos) | |
183 | { | |
184 | struct iwl_priv *priv = file->private_data; | |
185 | char buf[64]; | |
186 | int buf_size; | |
187 | u32 offset, len; | |
188 | ||
189 | memset(buf, 0, sizeof(buf)); | |
190 | buf_size = min(count, sizeof(buf) - 1); | |
191 | if (copy_from_user(buf, user_buf, buf_size)) | |
192 | return -EFAULT; | |
193 | ||
194 | if (sscanf(buf, "%x,%x", &offset, &len) == 2) { | |
195 | priv->dbgfs->sram_offset = offset; | |
196 | priv->dbgfs->sram_len = len; | |
197 | } else { | |
198 | priv->dbgfs->sram_offset = 0; | |
199 | priv->dbgfs->sram_len = 0; | |
200 | } | |
201 | ||
202 | return count; | |
203 | } | |
204 | ||
205 | static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, | |
206 | size_t count, loff_t *ppos) | |
207 | { | |
208 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
209 | struct iwl4965_station_entry *station; | |
5425e490 | 210 | int max_sta = priv->hw_params.max_stations; |
712b6cf5 TW |
211 | char *buf; |
212 | int i, j, pos = 0; | |
213 | ssize_t ret; | |
214 | /* Add 30 for initial string */ | |
215 | const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations); | |
216 | DECLARE_MAC_BUF(mac); | |
217 | ||
218 | buf = kmalloc(bufsz, GFP_KERNEL); | |
219 | if(!buf) | |
220 | return -ENOMEM; | |
221 | ||
db0589f3 | 222 | pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n", |
712b6cf5 TW |
223 | priv->num_stations); |
224 | ||
225 | for (i = 0; i < max_sta; i++) { | |
226 | station = &priv->stations[i]; | |
227 | if (station->used) { | |
db0589f3 AK |
228 | pos += scnprintf(buf + pos, bufsz - pos, |
229 | "station %d:\ngeneral data:\n", i+1); | |
712b6cf5 | 230 | print_mac(mac, station->sta.sta.addr); |
db0589f3 | 231 | pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n", |
712b6cf5 | 232 | station->sta.sta.sta_id); |
db0589f3 | 233 | pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n", |
712b6cf5 | 234 | station->sta.mode); |
db0589f3 AK |
235 | pos += scnprintf(buf + pos, bufsz - pos, |
236 | "flags: 0x%x\n", | |
712b6cf5 | 237 | station->sta.station_flags_msk); |
db0589f3 AK |
238 | pos += scnprintf(buf + pos, bufsz - pos, |
239 | "ps_status: %u\n", station->ps_status); | |
240 | pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n"); | |
241 | pos += scnprintf(buf + pos, bufsz - pos, | |
344234de DM |
242 | "seq_num\t\ttxq_id"); |
243 | #ifdef CONFIG_IWL4965_HT | |
db0589f3 | 244 | pos += scnprintf(buf + pos, bufsz - pos, |
344234de | 245 | "\tframe_count\twait_for_ba\t"); |
db0589f3 AK |
246 | pos += scnprintf(buf + pos, bufsz - pos, |
247 | "start_idx\tbitmap0\t"); | |
248 | pos += scnprintf(buf + pos, bufsz - pos, | |
344234de DM |
249 | "bitmap1\trate_n_flags"); |
250 | #endif | |
251 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); | |
712b6cf5 TW |
252 | |
253 | for (j = 0; j < MAX_TID_COUNT; j++) { | |
db0589f3 | 254 | pos += scnprintf(buf + pos, bufsz - pos, |
344234de | 255 | "[%d]:\t\t%u", j, |
db0589f3 | 256 | station->tid[j].seq_number); |
344234de | 257 | #ifdef CONFIG_IWL4965_HT |
db0589f3 | 258 | pos += scnprintf(buf + pos, bufsz - pos, |
344234de | 259 | "\t%u\t\t%u\t\t%u\t\t", |
712b6cf5 TW |
260 | station->tid[j].agg.txq_id, |
261 | station->tid[j].agg.frame_count, | |
262 | station->tid[j].agg.wait_for_ba); | |
db0589f3 | 263 | pos += scnprintf(buf + pos, bufsz - pos, |
344234de | 264 | "%u\t%llu\t%u", |
712b6cf5 | 265 | station->tid[j].agg.start_idx, |
16788599 | 266 | (unsigned long long)station->tid[j].agg.bitmap, |
712b6cf5 | 267 | station->tid[j].agg.rate_n_flags); |
344234de DM |
268 | #endif |
269 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); | |
712b6cf5 | 270 | } |
db0589f3 | 271 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); |
712b6cf5 TW |
272 | } |
273 | } | |
274 | ||
275 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
276 | kfree(buf); | |
277 | return ret; | |
278 | } | |
279 | ||
280 | ||
281 | DEBUGFS_READ_WRITE_FILE_OPS(sram); | |
282 | DEBUGFS_READ_FILE_OPS(stations); | |
283 | DEBUGFS_READ_FILE_OPS(rx_statistics); | |
284 | DEBUGFS_READ_FILE_OPS(tx_statistics); | |
285 | ||
286 | /* | |
287 | * Create the debugfs files and directories | |
288 | * | |
289 | */ | |
290 | int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) | |
291 | { | |
292 | struct iwl_debugfs *dbgfs; | |
293 | ||
294 | dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL); | |
295 | if (!dbgfs) { | |
296 | goto err; | |
297 | } | |
298 | ||
299 | priv->dbgfs = dbgfs; | |
300 | dbgfs->name = name; | |
301 | dbgfs->dir_drv = debugfs_create_dir(name, NULL); | |
302 | if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)){ | |
303 | goto err; | |
304 | } | |
305 | ||
306 | DEBUGFS_ADD_DIR(data, dbgfs->dir_drv); | |
307 | DEBUGFS_ADD_FILE(sram, data); | |
308 | DEBUGFS_ADD_FILE(stations, data); | |
309 | DEBUGFS_ADD_FILE(rx_statistics, data); | |
310 | DEBUGFS_ADD_FILE(tx_statistics, data); | |
311 | ||
312 | return 0; | |
313 | ||
314 | err: | |
315 | IWL_ERROR("Can't open the debugfs directory\n"); | |
316 | iwl_dbgfs_unregister(priv); | |
317 | return -ENOENT; | |
318 | } | |
319 | EXPORT_SYMBOL(iwl_dbgfs_register); | |
320 | ||
321 | /** | |
322 | * Remove the debugfs files and directories | |
323 | * | |
324 | */ | |
325 | void iwl_dbgfs_unregister(struct iwl_priv *priv) | |
326 | { | |
327 | if (!(priv->dbgfs)) | |
328 | return; | |
329 | ||
330 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics); | |
331 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics); | |
332 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram); | |
333 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations); | |
334 | DEBUGFS_REMOVE(priv->dbgfs->dir_data); | |
335 | DEBUGFS_REMOVE(priv->dbgfs->dir_drv); | |
336 | kfree(priv->dbgfs); | |
337 | priv->dbgfs = NULL; | |
338 | } | |
339 | EXPORT_SYMBOL(iwl_dbgfs_unregister); | |
340 | ||
341 |