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: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c
index 4d2aaec..9275d6f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00debug.c
+++ b/drivers/net/wireless/rt2x00/rt2x00debug.c
@@ -57,6 +57,7 @@
* - 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 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(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 @@
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 @@
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);