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Commit 643b2521 authored by Ivo van Doorn's avatar Ivo van Doorn Committed by David S. Miller
Browse files

rt2x00: Add rt2x00dev->flags to debugfs 



Loosely based on the patch by Matthijs Kooijman,
this will add the dev_flags entry into debugfs which
will display rt2x00dev->flags.
This will allow easier debugging of flag handling.

Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 066cb637

drivers/net/wireless/rt2x00/rt2x00debug.c

+37 −0
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ struct rt2x00debug_intf { 
	 * - driver folder

	 * - driver file

	 * - chipset file

	 * - device flags file

	 * - register offset/value files

	 * - eeprom offset/value files

	 * - bbp offset/value files
@@ -65,6 +66,7 @@ struct rt2x00debug_intf { 
	struct dentry *driver_folder;

	struct dentry *driver_entry;

	struct dentry *chipset_entry;

	struct dentry *dev_flags;

	struct dentry *csr_off_entry;

	struct dentry *csr_val_entry;

	struct dentry *eeprom_off_entry;
@@ -193,6 +195,34 @@ RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16); 
RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8);

RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32);



static ssize_t rt2x00debug_read_dev_flags(struct file *file,

					  char __user *buf,

					  size_t length,

					  loff_t *offset)

{

	struct rt2x00debug_intf *intf =	file->private_data;

	char line[16];

	size_t size;



	if (*offset)

		return 0;



	size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags);



	if (copy_to_user(buf, line, size))

		return -EFAULT;



	*offset += size;

	return size;

}



static const struct file_operations rt2x00debug_fop_dev_flags = {

	.owner		= THIS_MODULE,

	.read		= rt2x00debug_read_dev_flags,

	.open		= rt2x00debug_file_open,

	.release	= rt2x00debug_file_release,

};



static struct dentry *rt2x00debug_create_file_driver(const char *name,

						     struct rt2x00debug_intf

						     *intf,
@@ -270,6 +300,12 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) 
	if (IS_ERR(intf->chipset_entry))

		goto exit;



	intf->dev_flags = debugfs_create_file("dev_flags", S_IRUGO,

					      intf->driver_folder, intf,

					      &rt2x00debug_fop_dev_flags);

	if (IS_ERR(intf->dev_flags))

		goto exit;



#define RT2X00DEBUGFS_CREATE_ENTRY(__intf, __name)		\

({								\

	(__intf)->__name##_off_entry =				\
@@ -320,6 +356,7 @@ void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev) 
	debugfs_remove(intf->eeprom_off_entry);

	debugfs_remove(intf->csr_val_entry);

	debugfs_remove(intf->csr_off_entry);

	debugfs_remove(intf->dev_flags);

	debugfs_remove(intf->chipset_entry);

	debugfs_remove(intf->driver_entry);

	debugfs_remove(intf->driver_folder);