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fb784f05 BZ |
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> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
fb784f05 BZ |
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 { | |
b914a250 MH |
30 | struct dentry *config_dir; |
31 | struct dentry *status_dir; | |
fb784f05 BZ |
32 | }; |
33 | ||
fb784f05 | 34 | static ssize_t btmrvl_hscfgcmd_write(struct file *file, |
54239903 | 35 | const char __user *ubuf, size_t count, loff_t *ppos) |
fb784f05 | 36 | { |
54239903 | 37 | struct btmrvl_private *priv = file->private_data; |
fb784f05 | 38 | char buf[16]; |
54239903 | 39 | long result, ret; |
fb784f05 BZ |
40 | |
41 | memset(buf, 0, sizeof(buf)); | |
42 | ||
54239903 | 43 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) |
fb784f05 BZ |
44 | return -EFAULT; |
45 | ||
473c1317 | 46 | ret = kstrtol(buf, 10, &result); |
26e7acf3 DM |
47 | if (ret) |
48 | return ret; | |
fb784f05 BZ |
49 | |
50 | priv->btmrvl_dev.hscfgcmd = result; | |
51 | ||
52 | if (priv->btmrvl_dev.hscfgcmd) { | |
53 | btmrvl_prepare_command(priv); | |
54 | wake_up_interruptible(&priv->main_thread.wait_q); | |
55 | } | |
56 | ||
57 | return count; | |
58 | } | |
59 | ||
54239903 MH |
60 | static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf, |
61 | size_t count, loff_t *ppos) | |
fb784f05 | 62 | { |
54239903 | 63 | struct btmrvl_private *priv = file->private_data; |
fb784f05 | 64 | char buf[16]; |
54239903 | 65 | int ret; |
fb784f05 BZ |
66 | |
67 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", | |
54239903 | 68 | priv->btmrvl_dev.hscfgcmd); |
fb784f05 BZ |
69 | |
70 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
71 | } | |
72 | ||
73 | static const struct file_operations btmrvl_hscfgcmd_fops = { | |
54239903 MH |
74 | .read = btmrvl_hscfgcmd_read, |
75 | .write = btmrvl_hscfgcmd_write, | |
234e3405 | 76 | .open = simple_open, |
6038f373 | 77 | .llseek = default_llseek, |
fb784f05 BZ |
78 | }; |
79 | ||
fb784f05 | 80 | static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf, |
54239903 | 81 | size_t count, loff_t *ppos) |
fb784f05 | 82 | { |
54239903 | 83 | struct btmrvl_private *priv = file->private_data; |
fb784f05 | 84 | char buf[16]; |
54239903 | 85 | long result, ret; |
fb784f05 BZ |
86 | |
87 | memset(buf, 0, sizeof(buf)); | |
88 | ||
54239903 | 89 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) |
fb784f05 BZ |
90 | return -EFAULT; |
91 | ||
473c1317 | 92 | ret = kstrtol(buf, 10, &result); |
26e7acf3 DM |
93 | if (ret) |
94 | return ret; | |
fb784f05 BZ |
95 | |
96 | priv->btmrvl_dev.pscmd = result; | |
97 | ||
98 | if (priv->btmrvl_dev.pscmd) { | |
99 | btmrvl_prepare_command(priv); | |
100 | wake_up_interruptible(&priv->main_thread.wait_q); | |
101 | } | |
102 | ||
103 | return count; | |
104 | ||
105 | } | |
106 | ||
54239903 MH |
107 | static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf, |
108 | size_t count, loff_t *ppos) | |
fb784f05 | 109 | { |
54239903 | 110 | struct btmrvl_private *priv = file->private_data; |
fb784f05 | 111 | char buf[16]; |
54239903 | 112 | int ret; |
fb784f05 BZ |
113 | |
114 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd); | |
115 | ||
116 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
117 | } | |
118 | ||
119 | static const struct file_operations btmrvl_pscmd_fops = { | |
120 | .read = btmrvl_pscmd_read, | |
121 | .write = btmrvl_pscmd_write, | |
234e3405 | 122 | .open = simple_open, |
6038f373 | 123 | .llseek = default_llseek, |
fb784f05 BZ |
124 | }; |
125 | ||
fb784f05 | 126 | static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf, |
54239903 | 127 | size_t count, loff_t *ppos) |
fb784f05 | 128 | { |
be60b940 | 129 | struct btmrvl_private *priv = file->private_data; |
fb784f05 | 130 | char buf[16]; |
54239903 | 131 | long result, ret; |
fb784f05 BZ |
132 | |
133 | memset(buf, 0, sizeof(buf)); | |
134 | ||
54239903 | 135 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) |
fb784f05 BZ |
136 | return -EFAULT; |
137 | ||
473c1317 | 138 | ret = kstrtol(buf, 10, &result); |
26e7acf3 DM |
139 | if (ret) |
140 | return ret; | |
fb784f05 BZ |
141 | |
142 | priv->btmrvl_dev.hscmd = result; | |
143 | if (priv->btmrvl_dev.hscmd) { | |
144 | btmrvl_prepare_command(priv); | |
145 | wake_up_interruptible(&priv->main_thread.wait_q); | |
146 | } | |
147 | ||
148 | return count; | |
149 | } | |
150 | ||
54239903 MH |
151 | static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf, |
152 | size_t count, loff_t *ppos) | |
fb784f05 | 153 | { |
54239903 | 154 | struct btmrvl_private *priv = file->private_data; |
fb784f05 | 155 | char buf[16]; |
54239903 | 156 | int ret; |
fb784f05 BZ |
157 | |
158 | ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd); | |
159 | ||
160 | return simple_read_from_buffer(userbuf, count, ppos, buf, ret); | |
161 | } | |
162 | ||
163 | static const struct file_operations btmrvl_hscmd_fops = { | |
54239903 MH |
164 | .read = btmrvl_hscmd_read, |
165 | .write = btmrvl_hscmd_write, | |
234e3405 | 166 | .open = simple_open, |
6038f373 | 167 | .llseek = default_llseek, |
fb784f05 BZ |
168 | }; |
169 | ||
dc759613 XH |
170 | static ssize_t btmrvl_fwdump_write(struct file *file, const char __user *ubuf, |
171 | size_t count, loff_t *ppos) | |
172 | { | |
173 | struct btmrvl_private *priv = file->private_data; | |
174 | char buf[16]; | |
175 | bool result; | |
176 | ||
177 | memset(buf, 0, sizeof(buf)); | |
178 | ||
179 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) | |
180 | return -EFAULT; | |
181 | ||
182 | if (strtobool(buf, &result)) | |
183 | return -EINVAL; | |
184 | ||
185 | if (!result) | |
186 | return -EINVAL; | |
187 | ||
188 | btmrvl_firmware_dump(priv); | |
189 | ||
190 | return count; | |
191 | } | |
192 | ||
193 | static const struct file_operations btmrvl_fwdump_fops = { | |
194 | .write = btmrvl_fwdump_write, | |
195 | .open = simple_open, | |
196 | .llseek = default_llseek, | |
197 | }; | |
198 | ||
fb784f05 BZ |
199 | void btmrvl_debugfs_init(struct hci_dev *hdev) |
200 | { | |
155961e8 | 201 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
fb784f05 BZ |
202 | struct btmrvl_debugfs_data *dbg; |
203 | ||
b914a250 MH |
204 | if (!hdev->debugfs) |
205 | return; | |
206 | ||
fb784f05 BZ |
207 | dbg = kzalloc(sizeof(*dbg), GFP_KERNEL); |
208 | priv->debugfs_data = dbg; | |
209 | ||
210 | if (!dbg) { | |
211 | BT_ERR("Can not allocate memory for btmrvl_debugfs_data."); | |
212 | return; | |
213 | } | |
214 | ||
b914a250 | 215 | dbg->config_dir = debugfs_create_dir("config", hdev->debugfs); |
fb784f05 | 216 | |
9da226c7 AS |
217 | debugfs_create_u8("psmode", 0644, dbg->config_dir, |
218 | &priv->btmrvl_dev.psmode); | |
219 | debugfs_create_file("pscmd", 0644, dbg->config_dir, | |
220 | priv, &btmrvl_pscmd_fops); | |
221 | debugfs_create_x16("gpiogap", 0644, dbg->config_dir, | |
222 | &priv->btmrvl_dev.gpio_gap); | |
223 | debugfs_create_u8("hsmode", 0644, dbg->config_dir, | |
224 | &priv->btmrvl_dev.hsmode); | |
225 | debugfs_create_file("hscmd", 0644, dbg->config_dir, | |
226 | priv, &btmrvl_hscmd_fops); | |
227 | debugfs_create_file("hscfgcmd", 0644, dbg->config_dir, | |
228 | priv, &btmrvl_hscfgcmd_fops); | |
dc759613 XH |
229 | debugfs_create_file("fw_dump", 0200, dbg->config_dir, |
230 | priv, &btmrvl_fwdump_fops); | |
fb784f05 | 231 | |
b914a250 | 232 | dbg->status_dir = debugfs_create_dir("status", hdev->debugfs); |
9da226c7 AS |
233 | debugfs_create_u8("curpsmode", 0444, dbg->status_dir, |
234 | &priv->adapter->psmode); | |
235 | debugfs_create_u8("psstate", 0444, dbg->status_dir, | |
236 | &priv->adapter->ps_state); | |
237 | debugfs_create_u8("hsstate", 0444, dbg->status_dir, | |
238 | &priv->adapter->hs_state); | |
239 | debugfs_create_u8("txdnldready", 0444, dbg->status_dir, | |
240 | &priv->btmrvl_dev.tx_dnld_rdy); | |
fb784f05 BZ |
241 | } |
242 | ||
243 | void btmrvl_debugfs_remove(struct hci_dev *hdev) | |
244 | { | |
155961e8 | 245 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
fb784f05 BZ |
246 | struct btmrvl_debugfs_data *dbg = priv->debugfs_data; |
247 | ||
248 | if (!dbg) | |
249 | return; | |
250 | ||
9da226c7 AS |
251 | debugfs_remove_recursive(dbg->config_dir); |
252 | debugfs_remove_recursive(dbg->status_dir); | |
fb784f05 | 253 | |
fb784f05 BZ |
254 | kfree(dbg); |
255 | } |