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