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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#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
29struct 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
48static int btmrvl_open_generic(struct inode *inode, struct file *file)
49{
50 file->private_data = inode->i_private;
51 return 0;
52}
53
54static 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
80static 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
93static 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
100static 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
121static 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
134static 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
141static 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
168static 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
180static 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
187static 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
208static 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
221static 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
228static 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
253static 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
265static 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
272static 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
293static 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
305static 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
312static 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
324static const struct file_operations btmrvl_curpsmode_fops = {
325 .read = btmrvl_curpsmode_read,
326 .open = btmrvl_open_generic,
327 .llseek = default_llseek,
328};
329
330static 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
342static const struct file_operations btmrvl_psstate_fops = {
343 .read = btmrvl_psstate_read,
344 .open = btmrvl_open_generic,
345 .llseek = default_llseek,
346};
347
348static 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
360static const struct file_operations btmrvl_hsstate_fops = {
361 .read = btmrvl_hsstate_read,
362 .open = btmrvl_open_generic,
363 .llseek = default_llseek,
364};
365
366static 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
379static const struct file_operations btmrvl_txdnldready_fops = {
380 .read = btmrvl_txdnldready_read,
381 .open = btmrvl_open_generic,
382 .llseek = default_llseek,
383};
384
385void 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
431void 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}
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Marvell Bluetooth driver: debugfs related functions
4 *
5 * Copyright (C) 2009, Marvell International Ltd.
6 **/
7
8#include <linux/debugfs.h>
9#include <linux/slab.h>
10
11#include <net/bluetooth/bluetooth.h>
12#include <net/bluetooth/hci_core.h>
13
14#include "btmrvl_drv.h"
15
16struct btmrvl_debugfs_data {
17 struct dentry *config_dir;
18 struct dentry *status_dir;
19};
20
21static ssize_t btmrvl_hscfgcmd_write(struct file *file,
22 const char __user *ubuf, size_t count, loff_t *ppos)
23{
24 struct btmrvl_private *priv = file->private_data;
25 long result, ret;
26
27 ret = kstrtol_from_user(ubuf, count, 10, &result);
28 if (ret)
29 return ret;
30
31 priv->btmrvl_dev.hscfgcmd = result;
32
33 if (priv->btmrvl_dev.hscfgcmd) {
34 btmrvl_prepare_command(priv);
35 wake_up_interruptible(&priv->main_thread.wait_q);
36 }
37
38 return count;
39}
40
41static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
42 size_t count, loff_t *ppos)
43{
44 struct btmrvl_private *priv = file->private_data;
45 char buf[16];
46 int ret;
47
48 ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
49 priv->btmrvl_dev.hscfgcmd);
50
51 return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
52}
53
54static const struct file_operations btmrvl_hscfgcmd_fops = {
55 .read = btmrvl_hscfgcmd_read,
56 .write = btmrvl_hscfgcmd_write,
57 .open = simple_open,
58 .llseek = default_llseek,
59};
60
61static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
62 size_t count, loff_t *ppos)
63{
64 struct btmrvl_private *priv = file->private_data;
65 long result, ret;
66
67 ret = kstrtol_from_user(ubuf, count, 10, &result);
68 if (ret)
69 return ret;
70
71 priv->btmrvl_dev.pscmd = result;
72
73 if (priv->btmrvl_dev.pscmd) {
74 btmrvl_prepare_command(priv);
75 wake_up_interruptible(&priv->main_thread.wait_q);
76 }
77
78 return count;
79
80}
81
82static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
83 size_t count, loff_t *ppos)
84{
85 struct btmrvl_private *priv = file->private_data;
86 char buf[16];
87 int ret;
88
89 ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
90
91 return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
92}
93
94static const struct file_operations btmrvl_pscmd_fops = {
95 .read = btmrvl_pscmd_read,
96 .write = btmrvl_pscmd_write,
97 .open = simple_open,
98 .llseek = default_llseek,
99};
100
101static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
102 size_t count, loff_t *ppos)
103{
104 struct btmrvl_private *priv = file->private_data;
105 long result, ret;
106
107 ret = kstrtol_from_user(ubuf, count, 10, &result);
108 if (ret)
109 return ret;
110
111 priv->btmrvl_dev.hscmd = result;
112 if (priv->btmrvl_dev.hscmd) {
113 btmrvl_prepare_command(priv);
114 wake_up_interruptible(&priv->main_thread.wait_q);
115 }
116
117 return count;
118}
119
120static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
121 size_t count, loff_t *ppos)
122{
123 struct btmrvl_private *priv = file->private_data;
124 char buf[16];
125 int ret;
126
127 ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
128
129 return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
130}
131
132static const struct file_operations btmrvl_hscmd_fops = {
133 .read = btmrvl_hscmd_read,
134 .write = btmrvl_hscmd_write,
135 .open = simple_open,
136 .llseek = default_llseek,
137};
138
139void btmrvl_debugfs_init(struct hci_dev *hdev)
140{
141 struct btmrvl_private *priv = hci_get_drvdata(hdev);
142 struct btmrvl_debugfs_data *dbg;
143
144 if (!hdev->debugfs)
145 return;
146
147 dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
148 priv->debugfs_data = dbg;
149
150 if (!dbg) {
151 BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
152 return;
153 }
154
155 dbg->config_dir = debugfs_create_dir("config", hdev->debugfs);
156
157 debugfs_create_u8("psmode", 0644, dbg->config_dir,
158 &priv->btmrvl_dev.psmode);
159 debugfs_create_file("pscmd", 0644, dbg->config_dir,
160 priv, &btmrvl_pscmd_fops);
161 debugfs_create_x16("gpiogap", 0644, dbg->config_dir,
162 &priv->btmrvl_dev.gpio_gap);
163 debugfs_create_u8("hsmode", 0644, dbg->config_dir,
164 &priv->btmrvl_dev.hsmode);
165 debugfs_create_file("hscmd", 0644, dbg->config_dir,
166 priv, &btmrvl_hscmd_fops);
167 debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
168 priv, &btmrvl_hscfgcmd_fops);
169
170 dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
171 debugfs_create_u8("curpsmode", 0444, dbg->status_dir,
172 &priv->adapter->psmode);
173 debugfs_create_u8("psstate", 0444, dbg->status_dir,
174 &priv->adapter->ps_state);
175 debugfs_create_u8("hsstate", 0444, dbg->status_dir,
176 &priv->adapter->hs_state);
177 debugfs_create_u8("txdnldready", 0444, dbg->status_dir,
178 &priv->btmrvl_dev.tx_dnld_rdy);
179}
180
181void btmrvl_debugfs_remove(struct hci_dev *hdev)
182{
183 struct btmrvl_private *priv = hci_get_drvdata(hdev);
184 struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
185
186 if (!dbg)
187 return;
188
189 debugfs_remove_recursive(dbg->config_dir);
190 debugfs_remove_recursive(dbg->status_dir);
191
192 kfree(dbg);
193}