drivers/misc/mediatek/smi/mt8127/smi_debug.c

   1 #include <linux/uaccess.h>
   2 #include <linux/module.h>
   3 #include <linux/fs.h>
   4 #include <linux/platform_device.h>
   5 #include <linux/cdev.h>
   6 #include <linux/interrupt.h>
   7 #include <asm/io.h>
   8 #include <linux/sched.h>
   9 #include <linux/wait.h>
  10 #include <linux/spinlock.h>
  11 #include <linux/delay.h>
  12 #include <linux/earlysuspend.h>
  13 #include <linux/mm.h>
  14 #include <linux/vmalloc.h>
  15 #include <linux/dma-mapping.h>
  16 #include <linux/slab.h>
  17 #include <linux/aee.h>
  18 #include <linux/timer.h>
  19 #include <asm/system.h>
  20 #include <asm-generic/irq_regs.h>
  21 #include <asm/mach/map.h>
  22 #include <mach/sync_write.h>
  23 #include <mach/irqs.h>
  24 #include <asm/cacheflush.h>
  25 #include <linux/string.h>
  26 #include <linux/time.h>
  27 #include <linux/fb.h>
  28 #include <linux/debugfs.h>
  29 #include <mach/mt_typedefs.h>
  30 #include <mach/m4u.h>
  31 #include <mach/mt_smi.h>
  32
  33 #include "smi_common.h"
  34
  35 #include <linux/xlog.h>
  36
  37 #include <mach/m4u_reg.h>
  38
  39 #define SMI_LOG_TAG "smi"
  40
  41 static char debug_buffer[4096];
  42
  43 // ---------------------------------------------------------------------------
  44 //  Debug FileSystem Routines
  45 // ---------------------------------------------------------------------------
  46
  47 struct dentry *smi_dbgfs = NULL;
  48
  49
  50 static ssize_t debug_open(struct inode *inode, struct file *file)
  51 {
  52     file->private_data = inode->i_private;
  53     return 0;
  54 }
  55
  56 static ssize_t debug_read(struct file *file,
  57                           char __user *ubuf, size_t count, loff_t *ppos)
  58 {
  59     int n = 0;
  60     return simple_read_from_buffer(ubuf, count, ppos, debug_buffer, n);
  61 }
  62
  63 static struct file_operations debug_fops = {
  64         .read  = debug_read,
  65         .open  = debug_open,
  66 };
  67
  68
  69 void SMI_DBG_Init(void)
  70 {
  71     smi_dbgfs = debugfs_create_file("smi",
  72         S_IFREG|S_IRUGO, NULL, (void *)0, &debug_fops);
  73 }
  74
  75
  76 void SMI_DBG_Deinit(void)
  77 {
  78     debugfs_remove(smi_dbgfs);
  79 }
  80
  81