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authorBing Zhao <bzhao@marvell.com>2009-06-02 17:29:37 -0400
committerMarcel Holtmann <marcel@holtmann.org>2009-08-22 17:25:32 -0400
commitfb784f0508d5aa39a23e72879a8dfb517c6f6e7f (patch)
treef8e105589bc592467e8bb306aadade361b4f5412 /drivers/bluetooth/btmrvl_debugfs.c
parent789221ecc870117b77e354d488d5d29f15410de8 (diff)
Bluetooth: Add debugfs support to btmrvl driver
/debug/btmrvl/config/ /debug/btmrvl/status/ See Documentation/btmrvl.txt for details. This patch incorporates a lot of comments given by Nicolas Pitre <nico@marvell.com>. Many thanks to Nicolas Pitre. Signed-off-by: Rahul Tank <rahult@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth/btmrvl_debugfs.c')
-rw-r--r--drivers/bluetooth/btmrvl_debugfs.c469
1 files changed, 469 insertions, 0 deletions
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c
new file mode 100644
index 000000000000..747bb0c723c3
--- /dev/null
+++ b/drivers/bluetooth/btmrvl_debugfs.c
@@ -0,0 +1,469 @@
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
28struct 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
47static int btmrvl_open_generic(struct inode *inode, struct file *file)
48{
49 file->private_data = inode->i_private;
50 return 0;
51}
52
53static 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
82static 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
96static const struct file_operations btmrvl_hscfgcmd_fops = {
97 .read = btmrvl_hscfgcmd_read,
98 .write = btmrvl_hscfgcmd_write,
99 .open = btmrvl_open_generic,
100};
101
102static 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
123static 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
137static const struct file_operations btmrvl_psmode_fops = {
138 .read = btmrvl_psmode_read,
139 .write = btmrvl_psmode_write,
140 .open = btmrvl_open_generic,
141};
142
143static 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
170static 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
183static const struct file_operations btmrvl_pscmd_fops = {
184 .read = btmrvl_pscmd_read,
185 .write = btmrvl_pscmd_write,
186 .open = btmrvl_open_generic,
187};
188
189static 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
210static 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
224static const struct file_operations btmrvl_gpiogap_fops = {
225 .read = btmrvl_gpiogap_read,
226 .write = btmrvl_gpiogap_write,
227 .open = btmrvl_open_generic,
228};
229
230static 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
255static 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
268static const struct file_operations btmrvl_hscmd_fops = {
269 .read = btmrvl_hscmd_read,
270 .write = btmrvl_hscmd_write,
271 .open = btmrvl_open_generic,
272};
273
274static 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
295static 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
309static const struct file_operations btmrvl_hsmode_fops = {
310 .read = btmrvl_hsmode_read,
311 .write = btmrvl_hsmode_write,
312 .open = btmrvl_open_generic,
313};
314
315static 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
328static const struct file_operations btmrvl_curpsmode_fops = {
329 .read = btmrvl_curpsmode_read,
330 .open = btmrvl_open_generic,
331};
332
333static 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
347static const struct file_operations btmrvl_psstate_fops = {
348 .read = btmrvl_psstate_read,
349 .open = btmrvl_open_generic,
350};
351
352static 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
366static const struct file_operations btmrvl_hsstate_fops = {
367 .read = btmrvl_hsstate_read,
368 .open = btmrvl_open_generic,
369};
370
371static 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
385static const struct file_operations btmrvl_txdnldready_fops = {
386 .read = btmrvl_txdnldready_read,
387 .open = btmrvl_open_generic,
388};
389
390void 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
443void 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}