/*
- Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+ Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
Abstract: rt2x00 firmware loading routines.
*/
-#include <linux/crc-itu-t.h>
#include <linux/kernel.h>
#include <linux/module.h>
char *fw_name;
int retval;
u16 crc;
- u16 tmp;
/*
* Read correct firmware from harddisk.
return -ENOENT;
}
- /*
- * Validate the firmware using 16 bit CRC.
- * The last 2 bytes of the firmware are the CRC
- * so substract those 2 bytes from the CRC checksum,
- * and set those 2 bytes to 0 when calculating CRC.
- */
- tmp = 0;
- crc = crc_itu_t(0, fw->data, fw->size - 2);
- crc = crc_itu_t(crc, (u8 *)&tmp, 2);
-
+ crc = rt2x00dev->ops->lib->get_firmware_crc(fw->data, fw->size);
if (crc != (fw->data[fw->size - 2] << 8 | fw->data[fw->size - 1])) {
- ERROR(rt2x00dev, "Firmware CRC error.\n");
+ ERROR(rt2x00dev, "Firmware checksum error.\n");
retval = -ENOENT;
goto exit;
}
{
int retval;
+ if (!test_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags))
+ return 0;
+
if (!rt2x00dev->fw) {
retval = rt2x00lib_request_firmware(rt2x00dev);
if (retval)
release_firmware(rt2x00dev->fw);
rt2x00dev->fw = NULL;
}
-