tegra: Make tegra_vi01_device accessible
[linux-2.6.git] / drivers / bluetooth / btmrvl_debugfs.c
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 #include <linux/slab.h>
23
24 #include <net/bluetooth/bluetooth.h>
25 #include <net/bluetooth/hci_core.h>
26
27 #include "btmrvl_drv.h"
28
29 struct btmrvl_debugfs_data {
30         struct dentry *config_dir;
31         struct dentry *status_dir;
32
33         /* config */
34         struct dentry *psmode;
35         struct dentry *pscmd;
36         struct dentry *hsmode;
37         struct dentry *hscmd;
38         struct dentry *gpiogap;
39         struct dentry *hscfgcmd;
40
41         /* status */
42         struct dentry *curpsmode;
43         struct dentry *hsstate;
44         struct dentry *psstate;
45         struct dentry *txdnldready;
46 };
47
48 static int btmrvl_open_generic(struct inode *inode, struct file *file)
49 {
50         file->private_data = inode->i_private;
51         return 0;
52 }
53
54 static ssize_t btmrvl_hscfgcmd_write(struct file *file,
55                         const char __user *ubuf, size_t count, loff_t *ppos)
56 {
57         struct btmrvl_private *priv = file->private_data;
58         char buf[16];
59         long result, ret;
60
61         memset(buf, 0, sizeof(buf));
62
63         if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
64                 return -EFAULT;
65
66         ret = strict_strtol(buf, 10, &result);
67         if (ret)
68                 return ret;
69
70         priv->btmrvl_dev.hscfgcmd = result;
71
72         if (priv->btmrvl_dev.hscfgcmd) {
73                 btmrvl_prepare_command(priv);
74                 wake_up_interruptible(&priv->main_thread.wait_q);
75         }
76
77         return count;
78 }
79
80 static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
81                                                 size_t count, loff_t *ppos)
82 {
83         struct btmrvl_private *priv = file->private_data;
84         char buf[16];
85         int ret;
86
87         ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
88                                                 priv->btmrvl_dev.hscfgcmd);
89
90         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
91 }
92
93 static const struct file_operations btmrvl_hscfgcmd_fops = {
94         .read   = btmrvl_hscfgcmd_read,
95         .write  = btmrvl_hscfgcmd_write,
96         .open   = btmrvl_open_generic,
97         .llseek = default_llseek,
98 };
99
100 static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf,
101                                                 size_t count, loff_t *ppos)
102 {
103         struct btmrvl_private *priv = file->private_data;
104         char buf[16];
105         long result, ret;
106
107         memset(buf, 0, sizeof(buf));
108
109         if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
110                 return -EFAULT;
111
112         ret = strict_strtol(buf, 10, &result);
113         if (ret)
114                 return ret;
115
116         priv->btmrvl_dev.psmode = result;
117
118         return count;
119 }
120
121 static ssize_t btmrvl_psmode_read(struct file *file, char __user *userbuf,
122                                                 size_t count, loff_t *ppos)
123 {
124         struct btmrvl_private *priv = file->private_data;
125         char buf[16];
126         int ret;
127
128         ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
129                                                 priv->btmrvl_dev.psmode);
130
131         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
132 }
133
134 static const struct file_operations btmrvl_psmode_fops = {
135         .read   = btmrvl_psmode_read,
136         .write  = btmrvl_psmode_write,
137         .open   = btmrvl_open_generic,
138         .llseek = default_llseek,
139 };
140
141 static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
142                                                 size_t count, loff_t *ppos)
143 {
144         struct btmrvl_private *priv = file->private_data;
145         char buf[16];
146         long result, ret;
147
148         memset(buf, 0, sizeof(buf));
149
150         if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
151                 return -EFAULT;
152
153         ret = strict_strtol(buf, 10, &result);
154         if (ret)
155                 return ret;
156
157         priv->btmrvl_dev.pscmd = result;
158
159         if (priv->btmrvl_dev.pscmd) {
160                 btmrvl_prepare_command(priv);
161                 wake_up_interruptible(&priv->main_thread.wait_q);
162         }
163
164         return count;
165
166 }
167
168 static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
169                                                 size_t count, loff_t *ppos)
170 {
171         struct btmrvl_private *priv = file->private_data;
172         char buf[16];
173         int ret;
174
175         ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
176
177         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
178 }
179
180 static const struct file_operations btmrvl_pscmd_fops = {
181         .read = btmrvl_pscmd_read,
182         .write = btmrvl_pscmd_write,
183         .open = btmrvl_open_generic,
184         .llseek = default_llseek,
185 };
186
187 static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf,
188                                                 size_t count, loff_t *ppos)
189 {
190         struct btmrvl_private *priv = file->private_data;
191         char buf[16];
192         long result, ret;
193
194         memset(buf, 0, sizeof(buf));
195
196         if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
197                 return -EFAULT;
198
199         ret = strict_strtol(buf, 16, &result);
200         if (ret)
201                 return ret;
202
203         priv->btmrvl_dev.gpio_gap = result;
204
205         return count;
206 }
207
208 static ssize_t btmrvl_gpiogap_read(struct file *file, char __user *userbuf,
209                                                 size_t count, loff_t *ppos)
210 {
211         struct btmrvl_private *priv = file->private_data;
212         char buf[16];
213         int ret;
214
215         ret = snprintf(buf, sizeof(buf) - 1, "0x%x\n",
216                                                 priv->btmrvl_dev.gpio_gap);
217
218         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
219 }
220
221 static const struct file_operations btmrvl_gpiogap_fops = {
222         .read   = btmrvl_gpiogap_read,
223         .write  = btmrvl_gpiogap_write,
224         .open   = btmrvl_open_generic,
225         .llseek = default_llseek,
226 };
227
228 static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
229                                                 size_t count, loff_t *ppos)
230 {
231         struct btmrvl_private *priv = file->private_data;
232         char buf[16];
233         long result, ret;
234
235         memset(buf, 0, sizeof(buf));
236
237         if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
238                 return -EFAULT;
239
240         ret = strict_strtol(buf, 10, &result);
241         if (ret)
242                 return ret;
243
244         priv->btmrvl_dev.hscmd = result;
245         if (priv->btmrvl_dev.hscmd) {
246                 btmrvl_prepare_command(priv);
247                 wake_up_interruptible(&priv->main_thread.wait_q);
248         }
249
250         return count;
251 }
252
253 static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
254                                                 size_t count, loff_t *ppos)
255 {
256         struct btmrvl_private *priv = file->private_data;
257         char buf[16];
258         int ret;
259
260         ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
261
262         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
263 }
264
265 static const struct file_operations btmrvl_hscmd_fops = {
266         .read   = btmrvl_hscmd_read,
267         .write  = btmrvl_hscmd_write,
268         .open   = btmrvl_open_generic,
269         .llseek = default_llseek,
270 };
271
272 static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf,
273                                                 size_t count, loff_t *ppos)
274 {
275         struct btmrvl_private *priv = file->private_data;
276         char buf[16];
277         long result, ret;
278
279         memset(buf, 0, sizeof(buf));
280
281         if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
282                 return -EFAULT;
283
284         ret = strict_strtol(buf, 10, &result);
285         if (ret)
286                 return ret;
287
288         priv->btmrvl_dev.hsmode = result;
289
290         return count;
291 }
292
293 static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf,
294                                                 size_t count, loff_t *ppos)
295 {
296         struct btmrvl_private *priv = file->private_data;
297         char buf[16];
298         int ret;
299
300         ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hsmode);
301
302         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
303 }
304
305 static const struct file_operations btmrvl_hsmode_fops = {
306         .read   = btmrvl_hsmode_read,
307         .write  = btmrvl_hsmode_write,
308         .open   = btmrvl_open_generic,
309         .llseek = default_llseek,
310 };
311
312 static ssize_t btmrvl_curpsmode_read(struct file *file, char __user *userbuf,
313                                                 size_t count, loff_t *ppos)
314 {
315         struct btmrvl_private *priv = file->private_data;
316         char buf[16];
317         int ret;
318
319         ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->psmode);
320
321         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
322 }
323
324 static const struct file_operations btmrvl_curpsmode_fops = {
325         .read   = btmrvl_curpsmode_read,
326         .open   = btmrvl_open_generic,
327         .llseek = default_llseek,
328 };
329
330 static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf,
331                                                 size_t count, loff_t *ppos)
332 {
333         struct btmrvl_private *priv = file->private_data;
334         char buf[16];
335         int ret;
336
337         ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->ps_state);
338
339         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
340 }
341
342 static const struct file_operations btmrvl_psstate_fops = {
343         .read   = btmrvl_psstate_read,
344         .open   = btmrvl_open_generic,
345         .llseek = default_llseek,
346 };
347
348 static ssize_t btmrvl_hsstate_read(struct file *file, char __user *userbuf,
349                                                 size_t count, loff_t *ppos)
350 {
351         struct btmrvl_private *priv = file->private_data;
352         char buf[16];
353         int ret;
354
355         ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->hs_state);
356
357         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
358 }
359
360 static const struct file_operations btmrvl_hsstate_fops = {
361         .read   = btmrvl_hsstate_read,
362         .open   = btmrvl_open_generic,
363         .llseek = default_llseek,
364 };
365
366 static ssize_t btmrvl_txdnldready_read(struct file *file, char __user *userbuf,
367                                                 size_t count, loff_t *ppos)
368 {
369         struct btmrvl_private *priv = file->private_data;
370         char buf[16];
371         int ret;
372
373         ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
374                                         priv->btmrvl_dev.tx_dnld_rdy);
375
376         return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
377 }
378
379 static const struct file_operations btmrvl_txdnldready_fops = {
380         .read   = btmrvl_txdnldready_read,
381         .open   = btmrvl_open_generic,
382         .llseek = default_llseek,
383 };
384
385 void btmrvl_debugfs_init(struct hci_dev *hdev)
386 {
387         struct btmrvl_private *priv = hdev->driver_data;
388         struct btmrvl_debugfs_data *dbg;
389
390         if (!hdev->debugfs)
391                 return;
392
393         dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
394         priv->debugfs_data = dbg;
395
396         if (!dbg) {
397                 BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
398                 return;
399         }
400
401         dbg->config_dir = debugfs_create_dir("config", hdev->debugfs);
402
403         dbg->psmode = debugfs_create_file("psmode", 0644, dbg->config_dir,
404                                 hdev->driver_data, &btmrvl_psmode_fops);
405         dbg->pscmd = debugfs_create_file("pscmd", 0644, dbg->config_dir,
406                                 hdev->driver_data, &btmrvl_pscmd_fops);
407         dbg->gpiogap = debugfs_create_file("gpiogap", 0644, dbg->config_dir,
408                                 hdev->driver_data, &btmrvl_gpiogap_fops);
409         dbg->hsmode =  debugfs_create_file("hsmode", 0644, dbg->config_dir,
410                                 hdev->driver_data, &btmrvl_hsmode_fops);
411         dbg->hscmd = debugfs_create_file("hscmd", 0644, dbg->config_dir,
412                                 hdev->driver_data, &btmrvl_hscmd_fops);
413         dbg->hscfgcmd = debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
414                                 hdev->driver_data, &btmrvl_hscfgcmd_fops);
415
416         dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
417         dbg->curpsmode = debugfs_create_file("curpsmode", 0444,
418                                                 dbg->status_dir,
419                                                 hdev->driver_data,
420                                                 &btmrvl_curpsmode_fops);
421         dbg->psstate = debugfs_create_file("psstate", 0444, dbg->status_dir,
422                                 hdev->driver_data, &btmrvl_psstate_fops);
423         dbg->hsstate = debugfs_create_file("hsstate", 0444, dbg->status_dir,
424                                 hdev->driver_data, &btmrvl_hsstate_fops);
425         dbg->txdnldready = debugfs_create_file("txdnldready", 0444,
426                                                 dbg->status_dir,
427                                                 hdev->driver_data,
428                                                 &btmrvl_txdnldready_fops);
429 }
430
431 void btmrvl_debugfs_remove(struct hci_dev *hdev)
432 {
433         struct btmrvl_private *priv = hdev->driver_data;
434         struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
435
436         if (!dbg)
437                 return;
438
439         debugfs_remove(dbg->psmode);
440         debugfs_remove(dbg->pscmd);
441         debugfs_remove(dbg->gpiogap);
442         debugfs_remove(dbg->hsmode);
443         debugfs_remove(dbg->hscmd);
444         debugfs_remove(dbg->hscfgcmd);
445         debugfs_remove(dbg->config_dir);
446
447         debugfs_remove(dbg->curpsmode);
448         debugfs_remove(dbg->psstate);
449         debugfs_remove(dbg->hsstate);
450         debugfs_remove(dbg->txdnldready);
451         debugfs_remove(dbg->status_dir);
452
453         kfree(dbg);
454 }