diff options
Diffstat (limited to 'drivers/staging/msm/mdp4_debugfs.c')
| -rw-r--r-- | drivers/staging/msm/mdp4_debugfs.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/drivers/staging/msm/mdp4_debugfs.c b/drivers/staging/msm/mdp4_debugfs.c deleted file mode 100644 index 36954e89478c..000000000000 --- a/drivers/staging/msm/mdp4_debugfs.c +++ /dev/null @@ -1,175 +0,0 @@ -/* Copyright (c) 2009, 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/module.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/time.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/hrtimer.h> -#include <linux/clk.h> -#include <mach/hardware.h> -#include <linux/io.h> -#include <linux/debugfs.h> - -#include <asm/system.h> -#include <asm/mach-types.h> -#include <linux/semaphore.h> -#include <linux/uaccess.h> - -#include "mdp.h" -#include "msm_fb.h" -#include "mdp4.h" - - -#define MDP4_DEBUG_BUF 128 - - -static char mdp4_debug_buf[MDP4_DEBUG_BUF]; -static ulong mdp4_debug_offset; -static ulong mdp4_base_addr; - -static int mdp4_offset_set(void *data, u64 val) -{ - mdp4_debug_offset = (int)val; - return 0; -} - -static int mdp4_offset_get(void *data, u64 *val) -{ - *val = (u64)mdp4_debug_offset; - return 0; -} - -DEFINE_SIMPLE_ATTRIBUTE( - mdp4_offset_fops, - mdp4_offset_get, - mdp4_offset_set, - "%llx\n"); - - -static int mdp4_debugfs_release(struct inode *inode, struct file *file) -{ - return 0; -} - -static ssize_t mdp4_debugfs_write( - struct file *file, - const char __user *buff, - size_t count, - loff_t *ppos) -{ - int cnt; - unsigned int data; - - printk(KERN_INFO "%s: offset=%d count=%d *ppos=%d\n", - __func__, (int)mdp4_debug_offset, (int)count, (int)*ppos); - - if (count > sizeof(mdp4_debug_buf)) - return -EFAULT; - - if (copy_from_user(mdp4_debug_buf, buff, count)) - return -EFAULT; - - - mdp4_debug_buf[count] = 0; /* end of string */ - - cnt = sscanf(mdp4_debug_buf, "%x", &data); - if (cnt < 1) { - printk(KERN_ERR "%s: sscanf failed cnt=%d" , __func__, cnt); - return -EINVAL; - } - - writel(&data, mdp4_base_addr + mdp4_debug_offset); - - return 0; -} - -static ssize_t mdp4_debugfs_read( - struct file *file, - char __user *buff, - size_t count, - loff_t *ppos) -{ - int len = 0; - unsigned int data; - - printk(KERN_INFO "%s: offset=%d count=%d *ppos=%d\n", - __func__, (int)mdp4_debug_offset, (int)count, (int)*ppos); - - if (*ppos) - return 0; /* the end */ - - data = readl(mdp4_base_addr + mdp4_debug_offset); - - len = snprintf(mdp4_debug_buf, 4, "%x\n", data); - - if (len > 0) { - if (len > count) - len = count; - if (copy_to_user(buff, mdp4_debug_buf, len)) - return -EFAULT; - } - - printk(KERN_INFO "%s: len=%d\n", __func__, len); - - if (len < 0) - return 0; - - *ppos += len; /* increase offset */ - - return len; -} - -static const struct file_operations mdp4_debugfs_fops = { - .open = nonseekable_open, - .release = mdp4_debugfs_release, - .read = mdp4_debugfs_read, - .write = mdp4_debugfs_write, - .llseek = no_llseek, -}; - -int mdp4_debugfs_init(void) -{ - struct dentry *dent = debugfs_create_dir("mdp4", NULL); - - if (IS_ERR(dent)) { - printk(KERN_ERR "%s(%d): debugfs_create_dir fail, error %ld\n", - __FILE__, __LINE__, PTR_ERR(dent)); - return -1; - } - - if (debugfs_create_file("offset", 0644, dent, 0, &mdp4_offset_fops) - == NULL) { - printk(KERN_ERR "%s(%d): debugfs_create_file: offset fail\n", - __FILE__, __LINE__); - return -1; - } - - if (debugfs_create_file("regs", 0644, dent, 0, &mdp4_debugfs_fops) - == NULL) { - printk(KERN_ERR "%s(%d): debugfs_create_file: regs fail\n", - __FILE__, __LINE__); - return -1; - } - - mdp4_debug_offset = 0; - mdp4_base_addr = (ulong) msm_mdp_base; /* defined at msm_fb_def.h */ - - return 0; -} |