diff options
Diffstat (limited to 'drivers/net/wireless/rda/rda_wlan/wlan_debugfs.c')
| -rwxr-xr-x | drivers/net/wireless/rda/rda_wlan/wlan_debugfs.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/drivers/net/wireless/rda/rda_wlan/wlan_debugfs.c b/drivers/net/wireless/rda/rda_wlan/wlan_debugfs.c new file mode 100755 index 00000000..c40edc36 --- /dev/null +++ b/drivers/net/wireless/rda/rda_wlan/wlan_debugfs.c @@ -0,0 +1,225 @@ +#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); +} + + |