rt2x00: Validate firmware in driver

The get_firmware_crc() callback function isn't flexible
enough when dealing with multiple firmware versions.
It might in some cases be possible that the firmware
file contains multiple CRC checksums.

Create the check_firmware() callback function where the driver
has complete freedom in how to validate the firmware.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00reg.h b/drivers/net/wireless/rt2x00/rt2x00reg.h
index 9ddc2d07eef8..861322d97fce 100644
--- a/drivers/net/wireless/rt2x00/rt2x00reg.h
+++ b/drivers/net/wireless/rt2x00/rt2x00reg.h
@@ -135,6 +135,16 @@ enum rate_modulation {
 };
 
 /*
+ * Firmware validation error codes
+ */
+enum firmware_errors {
+        FW_OK,
+        FW_BAD_CRC,
+        FW_BAD_LENGTH,
+        FW_BAD_VERSION,
+};
+
+/*
  * Register handlers.
  * We store the position of a register field inside a field structure,
  * This will simplify the process of setting and reading a certain field