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#include "wlan_includes.h"
static int open_file_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
#define FOPS(fread, fwrite) { \
.owner = THIS_MODULE, \
.open = open_file_generic, \
.read = (fread), \
.write = (fwrite), \
}
struct wlan_debugfs_files {
char *name;
int perm;
struct file_operations fops;
};
extern int wlan_dbg_level;
extern int wlan_dbg_area;
static struct dentry *wlan_dbg_dir = NULL;
static ssize_t wlan_debugarea_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
size_t pos = 0;
unsigned long addr = get_zeroed_page(GFP_KERNEL);
char *buf = (char *)addr;
ssize_t res;
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_TRACE,
"%s\n", __func__);
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_TRACE,
"get debug_area = 0x%x\n",wlan_dbg_area);
pos += snprintf(buf+pos, PAGE_SIZE - pos, "%x\n",
wlan_dbg_area);
res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
free_page(addr);
return res;
}
static ssize_t wlan_debugarea_write(struct file *file,
const char __user *user_buf, size_t count,
loff_t *ppos)
{
ssize_t ret;
int debug_area;
unsigned long addr = get_zeroed_page(GFP_KERNEL);
char *buf = (char *)addr;
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_TRACE,
"%s count:%d \n", __func__, count);
if (copy_from_user(buf, user_buf, count)) {
ret = -EFAULT;
goto out_unlock;
}
ret = sscanf(buf, "%x", &debug_area);
if (ret != 1) {
ret = -EINVAL;
goto out_unlock;
}
wlan_dbg_area = debug_area;
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_TRACE,
"set debug_area = 0x%x\n",wlan_dbg_area);
ret = count;
out_unlock:
free_page(addr);
return ret;
}
static ssize_t wlan_debuglevel_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
size_t pos = 0;
unsigned long addr = get_zeroed_page(GFP_KERNEL);
char *buf = (char *)addr;
ssize_t res;
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_TRACE,
"%s\n", __func__);
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_TRACE,
"get debug_level = 0x%x\n",wlan_dbg_level);
pos += snprintf(buf+pos, PAGE_SIZE - pos, "%x\n",
wlan_dbg_level);
res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
free_page(addr);
return res;
}
static ssize_t wlan_debuglevel_write(struct file *file,
const char __user *user_buf, size_t count,
loff_t *ppos)
{
ssize_t ret;
int debug_level;
unsigned long addr = get_zeroed_page(GFP_KERNEL);
char *buf = (char *)addr;
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_TRACE,
"%s\n", __func__);
if (copy_from_user(buf, user_buf, count)) {
ret = -EFAULT;
goto out_unlock;
}
ret = sscanf(buf, "%x", &debug_level);
if (ret != 1) {
ret = -EINVAL;
goto out_unlock;
}
wlan_dbg_level = debug_level;
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_TRACE,
"set debug_level = 0x%x\n",wlan_dbg_level);
ret = count;
out_unlock:
free_page(addr);
return ret;
}
#if 0
static ssize_t wlan_loopback_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
ssize_t ret;
ret = 0;
return ret;
}
static ssize_t wlan_loopback_write(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
ssize_t ret;
ret = 0;
return ret;
}
#endif
static struct wlan_debugfs_files debugfs_files[] = {
{ "debugarea", 0444, FOPS(wlan_debugarea_read, wlan_debugarea_write), },
{ "debuglevel", 0444, FOPS(wlan_debuglevel_read, wlan_debuglevel_write), },
//{ "loopback", 0444, FOPS(wlan_loopback_read, wlan_loopback_write), },
};
void wlan_debugfs_init(void)
{
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_DEBUG,
"%s\n", __func__);
if (!wlan_dbg_dir)
wlan_dbg_dir = debugfs_create_dir("rdawlan", NULL);
return;
}
void wlan_debugfs_remove(void)
{
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_DEBUG,
"%s\n", __func__);
if (wlan_dbg_dir)
debugfs_remove(wlan_dbg_dir);
wlan_dbg_dir = NULL;
return;
}
void wlan_debugfs_init_all(wlan_private *priv)
{
int i;
struct wlan_debugfs_files *files;
if (!wlan_dbg_dir)
goto exit;
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_DEBUG,
"%s\n", __func__);
priv->debugfs_dir = debugfs_create_dir("rdawlan_dev", wlan_dbg_dir);
if (!priv->debugfs_dir)
goto exit;
for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
files = &debugfs_files[i];
priv->debugfs_files[i] = debugfs_create_file(files->name,
files->perm,
priv->debugfs_dir,
priv,
&files->fops);
}
exit:
return;
}
void wlan_debugfs_remove_all(wlan_private *priv)
{
int i;
WLAN_DBGLAP(WLAN_DA_SDIO, WLAN_DL_DEBUG,
"%s\n", __func__);
for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
debugfs_remove(priv->debugfs_files[i]);
debugfs_remove(priv->debugfs_dir);
}
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