1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.h b/drivers/net/wireless/rt2x00/rt2x00pci.h
index 96a2082a3532..9c0a4d77bc1b 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.h
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.h
@@ -77,6 +77,24 @@ rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev,
 }
 
 /**
+ * rt2x00pci_regbusy_read - Read from register with busy check
+ * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
+ * @offset: Register offset
+ * @field: Field to check if register is busy
+ * @reg: Pointer to where register contents should be stored
+ *
+ * This function will read the given register, and checks if the
+ * register is busy. If it is, it will sleep for a couple of
+ * microseconds before reading the register again. If the register
+ * is not read after a certain timeout, this function will return
+ * FALSE.
+ */
+int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev,
+                           const unsigned int offset,
+                           const struct rt2x00_field32 field,
+                           u32 *reg);
+
+/**
  * rt2x00pci_write_tx_data - Initialize data for TX operation
  * @entry: The entry where the frame is located
  *