/** * Marvell Bluetooth driver: debugfs related functions * * Copyright (C) 2009, Marvell International Ltd. * * This software file (the "File") is distributed by Marvell International * Ltd. under the terms of the GNU General Public License Version 2, June 1991 * (the "License"). You may use, redistribute and/or modify this File in * accordance with the terms and conditions of the License, a copy of which * is available by writing to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. * * * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE * ARE EXPRESSLY DISCLAIMED. The License provides additional details about * this warranty disclaimer. **/ #include <linux/debugfs.h> #include <linux/slab.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include "btmrvl_drv.h" struct btmrvl_debugfs_data { struct dentry *config_dir; struct dentry *status_dir; }; static ssize_t btmrvl_hscfgcmd_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct btmrvl_private *priv = file->private_data; long result, ret; ret = kstrtol_from_user(ubuf, count, 10, &result); if (ret) return ret; priv->btmrvl_dev.hscfgcmd = result; if (priv->btmrvl_dev.hscfgcmd) { btmrvl_prepare_command(priv); wake_up_interruptible(&priv->main_thread.wait_q); } return count; } static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct btmrvl_private *priv = file->private_data; char buf[16]; int ret; ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscfgcmd); return simple_read_from_buffer(userbuf, count, ppos, buf, ret); } static const struct file_operations btmrvl_hscfgcmd_fops = { .read = btmrvl_hscfgcmd_read, .write = btmrvl_hscfgcmd_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct btmrvl_private *priv = file->private_data; long result, ret; ret = kstrtol_from_user(ubuf, count, 10, &result); if (ret) return ret; priv->btmrvl_dev.pscmd = result; if (priv->btmrvl_dev.pscmd) { btmrvl_prepare_command(priv); wake_up_interruptible(&priv->main_thread.wait_q); } return count; } static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct btmrvl_private *priv = file->private_data; char buf[16]; int ret; ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd); return simple_read_from_buffer(userbuf, count, ppos, buf, ret); } static const struct file_operations btmrvl_pscmd_fops = { .read = btmrvl_pscmd_read, .write = btmrvl_pscmd_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct btmrvl_private *priv = file->private_data; long result, ret; ret = kstrtol_from_user(ubuf, count, 10, &result); if (ret) return ret; priv->btmrvl_dev.hscmd = result; if (priv->btmrvl_dev.hscmd) { btmrvl_prepare_command(priv); wake_up_interruptible(&priv->main_thread.wait_q); } return count; } static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct btmrvl_private *priv = file->private_data; char buf[16]; int ret; ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd); return simple_read_from_buffer(userbuf, count, ppos, buf, ret); } static const struct file_operations btmrvl_hscmd_fops = { .read = btmrvl_hscmd_read, .write = btmrvl_hscmd_write, .open = simple_open, .llseek = default_llseek, }; void btmrvl_debugfs_init(struct hci_dev *hdev) { struct btmrvl_private *priv = hci_get_drvdata(hdev); struct btmrvl_debugfs_data *dbg; if (!hdev->debugfs) return; dbg = kzalloc(sizeof(*dbg), GFP_KERNEL); priv->debugfs_data = dbg; if (!dbg) { BT_ERR("Can not allocate memory for btmrvl_debugfs_data."); return; } dbg->config_dir = debugfs_create_dir("config", hdev->debugfs); debugfs_create_u8("psmode", 0644, dbg->config_dir, &priv->btmrvl_dev.psmode); debugfs_create_file("pscmd", 0644, dbg->config_dir, priv, &btmrvl_pscmd_fops); debugfs_create_x16("gpiogap", 0644, dbg->config_dir, &priv->btmrvl_dev.gpio_gap); debugfs_create_u8("hsmode", 0644, dbg->config_dir, &priv->btmrvl_dev.hsmode); debugfs_create_file("hscmd", 0644, dbg->config_dir, priv, &btmrvl_hscmd_fops); debugfs_create_file("hscfgcmd", 0644, dbg->config_dir, priv, &btmrvl_hscfgcmd_fops); dbg->status_dir = debugfs_create_dir("status", hdev->debugfs); debugfs_create_u8("curpsmode", 0444, dbg->status_dir, &priv->adapter->psmode); debugfs_create_u8("psstate", 0444, dbg->status_dir, &priv->adapter->ps_state); debugfs_create_u8("hsstate", 0444, dbg->status_dir, &priv->adapter->hs_state); debugfs_create_u8("txdnldready", 0444, dbg->status_dir, &priv->btmrvl_dev.tx_dnld_rdy); } void btmrvl_debugfs_remove(struct hci_dev *hdev) { struct btmrvl_private *priv = hci_get_drvdata(hdev); struct btmrvl_debugfs_data *dbg = priv->debugfs_data; if (!dbg) return; debugfs_remove_recursive(dbg->config_dir); debugfs_remove_recursive(dbg->status_dir); kfree(dbg); }