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1 | /** |
2 | * Marvell Bluetooth driver: debugfs related functions | |
3 | * | |
4 | * Copyright (C) 2009, Marvell International Ltd. | |
5 | * | |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * | |
15 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
16 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
17 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
18 | * this warranty disclaimer. | |
19 | **/ | |
20 | ||
21 | #include <linux/debugfs.h> | |
22 | ||
23 | #include <net/bluetooth/bluetooth.h> | |
24 | #include <net/bluetooth/hci_core.h> | |
25 | ||
26 | #include "btmrvl_drv.h" | |
27 | ||
28 | struct btmrvl_debugfs_data { | |
29 | struct dentry *root_dir, *config_dir, *status_dir; | |
30 | ||
31 | /* config */ | |
32 | struct dentry *drvdbg; | |
33 | struct dentry *psmode; | |
34 | struct dentry *pscmd; | |
35 | struct dentry *hsmode; | |
36 | struct dentry *hscmd; | |
37 | struct dentry *gpiogap; | |
38 | struct dentry *hscfgcmd; | |
39 | ||
40 | /* status */ | |
41 | struct dentry *curpsmode; | |
42 | struct dentry *hsstate; | |
43 | struct dentry *psstate; | |
44 | struct dentry *txdnldready; | |
45 | }; | |
46 | ||
47 | static int btmrvl_open_generic(struct inode *inode, struct file *file) | |
48 | { | |
49 | file->private_data = inode->i_private; | |
50 | return 0; | |
51 | } | |
52 | ||
53 | static ssize_t btmrvl_hscfgcmd_write(struct file *file, | |
54 | const char __user *ubuf, | |
55 | size_t count, | |
56 | loff_t *ppos) | |
57 | { | |
58 | struct btmrvl_private *priv = | |
59 | (struct btmrvl_private *) file->private_data; | |
60 | ||
61 | long result, ret; | |
62 | char buf[16]; | |
63 | ||
64 | memset(buf, 0, sizeof(buf)); | |
65 | ||
66 | if (copy_from_user(&buf, ubuf, | |
67 | min_t(size_t, sizeof(buf) - 1, count))) | |
68 | return -EFAULT; | |
69 | ||
70 | ret = strict_strtol(buf, 10, &result); | |
71 | ||
72 | priv->btmrvl_dev.hscfgcmd = result; | |
73 | ||
74 | if (priv->btmrvl_dev.hscfgcmd) { | |
75 | btmrvl_prepare_command(priv); | |
76 | wake_up_interruptible(&priv->main_thread.wait_q); | |
77 | } | |
78 | ||
79 | return count; | |
80 | } | |
81 | ||
82 | static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user * userbuf, | |
83 | size_t count, loff_t *ppos) | |
84 | { | |
85 | struct btmrvl_private *priv = | |
86 | (struct btmrvl_private *) file->private_data; | |
87 | int ret; | |
88 | char buf[16]; | |
89 | ||
90 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", | |
91 | priv->btmrvl_dev.hscfgcmd); | |
92 | ||
93 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
94 | } | |
95 | ||
96 | static const struct file_operations btmrvl_hscfgcmd_fops = { | |
97 | .read = btmrvl_hscfgcmd_read, | |
98 | .write = btmrvl_hscfgcmd_write, | |
99 | .open = btmrvl_open_generic, | |
100 | }; | |
101 | ||
102 | static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf, | |
103 | size_t count, loff_t *ppos) | |
104 | { | |
105 | struct btmrvl_private *priv = | |
106 | (struct btmrvl_private *) file->private_data; | |
107 | long result, ret; | |
108 | char buf[16]; | |
109 | ||
110 | memset(buf, 0, sizeof(buf)); | |
111 | ||
112 | if (copy_from_user(&buf, ubuf, | |
113 | min_t(size_t, sizeof(buf) - 1, count))) | |
114 | return -EFAULT; | |
115 | ||
116 | ret = strict_strtol(buf, 10, &result); | |
117 | ||
118 | priv->btmrvl_dev.psmode = result; | |
119 | ||
120 | return count; | |
121 | } | |
122 | ||
123 | static ssize_t btmrvl_psmode_read(struct file *file, char __user * userbuf, | |
124 | size_t count, loff_t *ppos) | |
125 | { | |
126 | struct btmrvl_private *priv = | |
127 | (struct btmrvl_private *) file->private_data; | |
128 | int ret; | |
129 | char buf[16]; | |
130 | ||
131 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", | |
132 | priv->btmrvl_dev.psmode); | |
133 | ||
134 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
135 | } | |
136 | ||
137 | static const struct file_operations btmrvl_psmode_fops = { | |
138 | .read = btmrvl_psmode_read, | |
139 | .write = btmrvl_psmode_write, | |
140 | .open = btmrvl_open_generic, | |
141 | }; | |
142 | ||
143 | static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf, | |
144 | size_t count, loff_t *ppos) | |
145 | { | |
146 | struct btmrvl_private *priv = | |
147 | (struct btmrvl_private *) file->private_data; | |
148 | long result, ret; | |
149 | char buf[16]; | |
150 | ||
151 | memset(buf, 0, sizeof(buf)); | |
152 | ||
153 | if (copy_from_user(&buf, ubuf, | |
154 | min_t(size_t, sizeof(buf) - 1, count))) | |
155 | return -EFAULT; | |
156 | ||
157 | ret = strict_strtol(buf, 10, &result); | |
158 | ||
159 | priv->btmrvl_dev.pscmd = result; | |
160 | ||
161 | if (priv->btmrvl_dev.pscmd) { | |
162 | btmrvl_prepare_command(priv); | |
163 | wake_up_interruptible(&priv->main_thread.wait_q); | |
164 | } | |
165 | ||
166 | return count; | |
167 | ||
168 | } | |
169 | ||
170 | static ssize_t btmrvl_pscmd_read(struct file *file, char __user * userbuf, | |
171 | size_t count, loff_t *ppos) | |
172 | { | |
173 | struct btmrvl_private *priv = | |
174 | (struct btmrvl_private *) file->private_data; | |
175 | int ret; | |
176 | char buf[16]; | |
177 | ||
178 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd); | |
179 | ||
180 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
181 | } | |
182 | ||
183 | static const struct file_operations btmrvl_pscmd_fops = { | |
184 | .read = btmrvl_pscmd_read, | |
185 | .write = btmrvl_pscmd_write, | |
186 | .open = btmrvl_open_generic, | |
187 | }; | |
188 | ||
189 | static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf, | |
190 | size_t count, loff_t *ppos) | |
191 | { | |
192 | struct btmrvl_private *priv = | |
193 | (struct btmrvl_private *) file->private_data; | |
194 | long result, ret; | |
195 | char buf[16]; | |
196 | ||
197 | memset(buf, 0, sizeof(buf)); | |
198 | ||
199 | if (copy_from_user(&buf, ubuf, | |
200 | min_t(size_t, sizeof(buf) - 1, count))) | |
201 | return -EFAULT; | |
202 | ||
203 | ret = strict_strtol(buf, 16, &result); | |
204 | ||
205 | priv->btmrvl_dev.gpio_gap = result; | |
206 | ||
207 | return count; | |
208 | } | |
209 | ||
210 | static ssize_t btmrvl_gpiogap_read(struct file *file, char __user * userbuf, | |
211 | size_t count, loff_t *ppos) | |
212 | { | |
213 | struct btmrvl_private *priv = | |
214 | (struct btmrvl_private *) file->private_data; | |
215 | int ret; | |
216 | char buf[16]; | |
217 | ||
218 | ret = snprintf(buf, sizeof(buf) - 1, "0x%x\n", | |
219 | priv->btmrvl_dev.gpio_gap); | |
220 | ||
221 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
222 | } | |
223 | ||
224 | static const struct file_operations btmrvl_gpiogap_fops = { | |
225 | .read = btmrvl_gpiogap_read, | |
226 | .write = btmrvl_gpiogap_write, | |
227 | .open = btmrvl_open_generic, | |
228 | }; | |
229 | ||
230 | static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf, | |
231 | size_t count, loff_t *ppos) | |
232 | { | |
233 | struct btmrvl_private *priv = | |
234 | (struct btmrvl_private *) file->private_data; | |
235 | long result, ret; | |
236 | char buf[16]; | |
237 | ||
238 | memset(buf, 0, sizeof(buf)); | |
239 | ||
240 | if (copy_from_user(&buf, ubuf, | |
241 | min_t(size_t, sizeof(buf) - 1, count))) | |
242 | return -EFAULT; | |
243 | ||
244 | ret = strict_strtol(buf, 10, &result); | |
245 | ||
246 | priv->btmrvl_dev.hscmd = result; | |
247 | if (priv->btmrvl_dev.hscmd) { | |
248 | btmrvl_prepare_command(priv); | |
249 | wake_up_interruptible(&priv->main_thread.wait_q); | |
250 | } | |
251 | ||
252 | return count; | |
253 | } | |
254 | ||
255 | static ssize_t btmrvl_hscmd_read(struct file *file, char __user * userbuf, | |
256 | size_t count, loff_t *ppos) | |
257 | { | |
258 | struct btmrvl_private *priv = | |
259 | (struct btmrvl_private *) file->private_data; | |
260 | int ret; | |
261 | char buf[16]; | |
262 | ||
263 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd); | |
264 | ||
265 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
266 | } | |
267 | ||
268 | static const struct file_operations btmrvl_hscmd_fops = { | |
269 | .read = btmrvl_hscmd_read, | |
270 | .write = btmrvl_hscmd_write, | |
271 | .open = btmrvl_open_generic, | |
272 | }; | |
273 | ||
274 | static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf, | |
275 | size_t count, loff_t *ppos) | |
276 | { | |
277 | struct btmrvl_private *priv = | |
278 | (struct btmrvl_private *) file->private_data; | |
279 | long result, ret; | |
280 | char buf[16]; | |
281 | ||
282 | memset(buf, 0, sizeof(buf)); | |
283 | ||
284 | if (copy_from_user(&buf, ubuf, | |
285 | min_t(size_t, sizeof(buf) - 1, count))) | |
286 | return -EFAULT; | |
287 | ||
288 | ret = strict_strtol(buf, 10, &result); | |
289 | ||
290 | priv->btmrvl_dev.hsmode = result; | |
291 | ||
292 | return count; | |
293 | } | |
294 | ||
295 | static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf, | |
296 | size_t count, loff_t *ppos) | |
297 | { | |
298 | struct btmrvl_private *priv = | |
299 | (struct btmrvl_private *) file->private_data; | |
300 | int ret; | |
301 | char buf[16]; | |
302 | ||
303 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", | |
304 | priv->btmrvl_dev.hsmode); | |
305 | ||
306 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
307 | } | |
308 | ||
309 | static const struct file_operations btmrvl_hsmode_fops = { | |
310 | .read = btmrvl_hsmode_read, | |
311 | .write = btmrvl_hsmode_write, | |
312 | .open = btmrvl_open_generic, | |
313 | }; | |
314 | ||
315 | static ssize_t btmrvl_curpsmode_read(struct file *file, char __user * userbuf, | |
316 | size_t count, loff_t *ppos) | |
317 | { | |
318 | struct btmrvl_private *priv = | |
319 | (struct btmrvl_private *) file->private_data; | |
320 | int ret; | |
321 | char buf[16]; | |
322 | ||
323 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->psmode); | |
324 | ||
325 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
326 | } | |
327 | ||
328 | static const struct file_operations btmrvl_curpsmode_fops = { | |
329 | .read = btmrvl_curpsmode_read, | |
330 | .open = btmrvl_open_generic, | |
331 | }; | |
332 | ||
333 | static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf, | |
334 | size_t count, loff_t *ppos) | |
335 | { | |
336 | struct btmrvl_private *priv = | |
337 | (struct btmrvl_private *) file->private_data; | |
338 | int ret; | |
339 | char buf[16]; | |
340 | ||
341 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", | |
342 | priv->adapter->ps_state); | |
343 | ||
344 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
345 | } | |
346 | ||
347 | static const struct file_operations btmrvl_psstate_fops = { | |
348 | .read = btmrvl_psstate_read, | |
349 | .open = btmrvl_open_generic, | |
350 | }; | |
351 | ||
352 | static ssize_t btmrvl_hsstate_read(struct file *file, char __user * userbuf, | |
353 | size_t count, loff_t *ppos) | |
354 | { | |
355 | struct btmrvl_private *priv = | |
356 | (struct btmrvl_private *) file->private_data; | |
357 | int ret; | |
358 | char buf[16]; | |
359 | ||
360 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", | |
361 | priv->adapter->hs_state); | |
362 | ||
363 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
364 | } | |
365 | ||
366 | static const struct file_operations btmrvl_hsstate_fops = { | |
367 | .read = btmrvl_hsstate_read, | |
368 | .open = btmrvl_open_generic, | |
369 | }; | |
370 | ||
371 | static ssize_t btmrvl_txdnldready_read(struct file *file, char __user * userbuf, | |
372 | size_t count, loff_t *ppos) | |
373 | { | |
374 | struct btmrvl_private *priv = | |
375 | (struct btmrvl_private *) file->private_data; | |
376 | int ret; | |
377 | char buf[16]; | |
378 | ||
379 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", | |
380 | priv->btmrvl_dev.tx_dnld_rdy); | |
381 | ||
382 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
383 | } | |
384 | ||
385 | static const struct file_operations btmrvl_txdnldready_fops = { | |
386 | .read = btmrvl_txdnldready_read, | |
387 | .open = btmrvl_open_generic, | |
388 | }; | |
389 | ||
390 | void btmrvl_debugfs_init(struct hci_dev *hdev) | |
391 | { | |
392 | struct btmrvl_private *priv = | |
393 | (struct btmrvl_private *) hdev->driver_data; | |
394 | struct btmrvl_debugfs_data *dbg; | |
395 | ||
396 | dbg = kzalloc(sizeof(*dbg), GFP_KERNEL); | |
397 | priv->debugfs_data = dbg; | |
398 | ||
399 | if (!dbg) { | |
400 | BT_ERR("Can not allocate memory for btmrvl_debugfs_data."); | |
401 | return; | |
402 | } | |
403 | ||
404 | dbg->root_dir = debugfs_create_dir("btmrvl", NULL); | |
405 | ||
406 | dbg->config_dir = debugfs_create_dir("config", dbg->root_dir); | |
407 | ||
408 | dbg->psmode = debugfs_create_file("psmode", 0644, dbg->config_dir, | |
409 | hdev->driver_data, | |
410 | &btmrvl_psmode_fops); | |
411 | dbg->pscmd = | |
412 | debugfs_create_file("pscmd", 0644, dbg->config_dir, | |
413 | hdev->driver_data, &btmrvl_pscmd_fops); | |
414 | dbg->gpiogap = | |
415 | debugfs_create_file("gpiogap", 0644, dbg->config_dir, | |
416 | hdev->driver_data, &btmrvl_gpiogap_fops); | |
417 | dbg->hsmode = | |
418 | debugfs_create_file("hsmode", 0644, dbg->config_dir, | |
419 | hdev->driver_data, &btmrvl_hsmode_fops); | |
420 | dbg->hscmd = | |
421 | debugfs_create_file("hscmd", 0644, dbg->config_dir, | |
422 | hdev->driver_data, &btmrvl_hscmd_fops); | |
423 | dbg->hscfgcmd = | |
424 | debugfs_create_file("hscfgcmd", 0644, dbg->config_dir, | |
425 | hdev->driver_data, &btmrvl_hscfgcmd_fops); | |
426 | ||
427 | dbg->status_dir = debugfs_create_dir("status", dbg->root_dir); | |
428 | dbg->curpsmode = debugfs_create_file("curpsmode", 0444, | |
429 | dbg->status_dir, | |
430 | hdev->driver_data, | |
431 | &btmrvl_curpsmode_fops); | |
432 | dbg->psstate = | |
433 | debugfs_create_file("psstate", 0444, dbg->status_dir, | |
434 | hdev->driver_data, &btmrvl_psstate_fops); | |
435 | dbg->hsstate = | |
436 | debugfs_create_file("hsstate", 0444, dbg->status_dir, | |
437 | hdev->driver_data, &btmrvl_hsstate_fops); | |
438 | dbg->txdnldready = | |
439 | debugfs_create_file("txdnldready", 0444, dbg->status_dir, | |
440 | hdev->driver_data, &btmrvl_txdnldready_fops); | |
441 | } | |
442 | ||
443 | void btmrvl_debugfs_remove(struct hci_dev *hdev) | |
444 | { | |
445 | struct btmrvl_private *priv = | |
446 | (struct btmrvl_private *) hdev->driver_data; | |
447 | struct btmrvl_debugfs_data *dbg = priv->debugfs_data; | |
448 | ||
449 | if (!dbg) | |
450 | return; | |
451 | ||
452 | debugfs_remove(dbg->psmode); | |
453 | debugfs_remove(dbg->pscmd); | |
454 | debugfs_remove(dbg->gpiogap); | |
455 | debugfs_remove(dbg->hsmode); | |
456 | debugfs_remove(dbg->hscmd); | |
457 | debugfs_remove(dbg->hscfgcmd); | |
458 | debugfs_remove(dbg->config_dir); | |
459 | ||
460 | debugfs_remove(dbg->curpsmode); | |
461 | debugfs_remove(dbg->psstate); | |
462 | debugfs_remove(dbg->hsstate); | |
463 | debugfs_remove(dbg->txdnldready); | |
464 | debugfs_remove(dbg->status_dir); | |
465 | ||
466 | debugfs_remove(dbg->root_dir); | |
467 | ||
468 | kfree(dbg); | |
469 | } |