2 * Marvell Bluetooth driver: debugfs related functions
4 * Copyright (C) 2009, Marvell International Ltd.
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.
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.
21 #include <linux/debugfs.h>
22 #include <linux/slab.h>
24 #include <net/bluetooth/bluetooth.h>
25 #include <net/bluetooth/hci_core.h>
27 #include "btmrvl_drv.h"
29 struct btmrvl_debugfs_data {
30 struct dentry *config_dir;
31 struct dentry *status_dir;
34 static ssize_t btmrvl_hscfgcmd_write(struct file *file,
35 const char __user *ubuf, size_t count, loff_t *ppos)
37 struct btmrvl_private *priv = file->private_data;
41 memset(buf, 0, sizeof(buf));
43 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
46 ret = kstrtol(buf, 10, &result);
50 priv->btmrvl_dev.hscfgcmd = result;
52 if (priv->btmrvl_dev.hscfgcmd) {
53 btmrvl_prepare_command(priv);
54 wake_up_interruptible(&priv->main_thread.wait_q);
60 static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
61 size_t count, loff_t *ppos)
63 struct btmrvl_private *priv = file->private_data;
67 ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
68 priv->btmrvl_dev.hscfgcmd);
70 return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
73 static const struct file_operations btmrvl_hscfgcmd_fops = {
74 .read = btmrvl_hscfgcmd_read,
75 .write = btmrvl_hscfgcmd_write,
77 .llseek = default_llseek,
80 static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
81 size_t count, loff_t *ppos)
83 struct btmrvl_private *priv = file->private_data;
87 memset(buf, 0, sizeof(buf));
89 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
92 ret = kstrtol(buf, 10, &result);
96 priv->btmrvl_dev.pscmd = result;
98 if (priv->btmrvl_dev.pscmd) {
99 btmrvl_prepare_command(priv);
100 wake_up_interruptible(&priv->main_thread.wait_q);
107 static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
108 size_t count, loff_t *ppos)
110 struct btmrvl_private *priv = file->private_data;
114 ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
116 return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
119 static const struct file_operations btmrvl_pscmd_fops = {
120 .read = btmrvl_pscmd_read,
121 .write = btmrvl_pscmd_write,
123 .llseek = default_llseek,
126 static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
127 size_t count, loff_t *ppos)
129 struct btmrvl_private *priv = file->private_data;
133 memset(buf, 0, sizeof(buf));
135 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
138 ret = kstrtol(buf, 10, &result);
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);
151 static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
152 size_t count, loff_t *ppos)
154 struct btmrvl_private *priv = file->private_data;
158 ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
160 return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
163 static const struct file_operations btmrvl_hscmd_fops = {
164 .read = btmrvl_hscmd_read,
165 .write = btmrvl_hscmd_write,
167 .llseek = default_llseek,
170 static ssize_t btmrvl_fwdump_write(struct file *file, const char __user *ubuf,
171 size_t count, loff_t *ppos)
173 struct btmrvl_private *priv = file->private_data;
177 memset(buf, 0, sizeof(buf));
179 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
182 if (strtobool(buf, &result))
188 btmrvl_firmware_dump(priv);
193 static const struct file_operations btmrvl_fwdump_fops = {
194 .write = btmrvl_fwdump_write,
196 .llseek = default_llseek,
199 void btmrvl_debugfs_init(struct hci_dev *hdev)
201 struct btmrvl_private *priv = hci_get_drvdata(hdev);
202 struct btmrvl_debugfs_data *dbg;
207 dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
208 priv->debugfs_data = dbg;
211 BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
215 dbg->config_dir = debugfs_create_dir("config", hdev->debugfs);
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);
229 debugfs_create_file("fw_dump", 0200, dbg->config_dir,
230 priv, &btmrvl_fwdump_fops);
232 dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
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);
243 void btmrvl_debugfs_remove(struct hci_dev *hdev)
245 struct btmrvl_private *priv = hci_get_drvdata(hdev);
246 struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
251 debugfs_remove_recursive(dbg->config_dir);
252 debugfs_remove_recursive(dbg->status_dir);