| /* Copyright (c) 2011, Code Aurora Forum. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| * 02110-1301, USA. |
| */ |
| |
| #include <linux/debugfs.h> |
| #include <linux/delay.h> |
| #include <linux/errno.h> |
| #include <linux/fs.h> |
| #include <linux/kernel.h> |
| #include <linux/list.h> |
| #include <linux/module.h> |
| #include <linux/mutex.h> |
| #include <linux/sched.h> |
| #include <linux/spinlock.h> |
| #include <linux/string.h> |
| #include <linux/types.h> |
| #include <linux/uaccess.h> |
| #include <linux/wait.h> |
| |
| #include <mach/debug_mm.h> |
| #include <mach/msm_smd.h> |
| |
| #include "adsp.h" |
| |
| #define MAX_LEN 64 |
| #ifdef CONFIG_DEBUG_FS |
| static struct dentry *adsp_dentry; |
| #endif |
| static char l_buf[MAX_LEN]; |
| static unsigned int crash_enable; |
| |
| static ssize_t q5_debug_open(struct inode *inode, struct file *file) |
| { |
| file->private_data = inode->i_private; |
| MM_DBG("q5 debugfs opened\n"); |
| return 0; |
| } |
| |
| static ssize_t q5_debug_write(struct file *file, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| int len; |
| |
| if (count < 0) |
| return 0; |
| len = count > (MAX_LEN - 1) ? (MAX_LEN - 1) : count; |
| if (copy_from_user(l_buf, buf, len)) { |
| MM_INFO("Unable to copy data from user space\n"); |
| return -EFAULT; |
| } |
| l_buf[len] = 0; |
| if (l_buf[len - 1] == '\n') { |
| l_buf[len - 1] = 0; |
| len--; |
| } |
| if (!strncmp(l_buf, "boom", MAX_LEN)) { |
| q5audio_dsp_not_responding(); |
| } else if (!strncmp(l_buf, "enable", MAX_LEN)) { |
| crash_enable = 1; |
| MM_INFO("Crash enabled : %d\n", crash_enable); |
| } else if (!strncmp(l_buf, "disable", MAX_LEN)) { |
| crash_enable = 0; |
| MM_INFO("Crash disabled : %d\n", crash_enable); |
| } else |
| MM_INFO("Unknown Command\n"); |
| |
| return count; |
| } |
| |
| static const struct file_operations q5_debug_fops = { |
| .write = q5_debug_write, |
| .open = q5_debug_open, |
| }; |
| |
| static int __init q5_debug_init(void) |
| { |
| #ifdef CONFIG_DEBUG_FS |
| adsp_dentry = debugfs_create_file("q5_debug", S_IFREG | S_IRUGO, |
| NULL, (void *) NULL, &q5_debug_fops); |
| #endif /* CONFIG_DEBUG_FS */ |
| return 0; |
| } |
| device_initcall(q5_debug_init); |
| |