/*
* Emagic EMI 2|6 usb audio interface firmware loader.
* Copyright (C) 2002
- * Tapio Laxström (tapio.laxstrom@iptime.fi)
+ * Tapio Laxström (tapio.laxstrom@iptime.fi)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, as published by
#include <linux/init.h>
#include <linux/module.h>
#include <linux/usb.h>
+#include <linux/delay.h>
#define MAX_INTEL_HEX_RECORD_LENGTH 16
typedef struct _INTEL_HEX_RECORD
static int emi62_writememory (struct usb_device *dev, int address, unsigned char *data, int length, __u8 request)
{
int result;
- unsigned char *buffer = kmalloc (length, GFP_KERNEL);
+ unsigned char *buffer = kmemdup(data, length, GFP_KERNEL);
if (!buffer) {
err("emi62: kmalloc(%d) failed.", length);
return -ENOMEM;
}
- memcpy (buffer, data, length);
/* Note: usb_control_msg returns negative value on error or length of the
* data that was written! */
result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300);
/* De-assert reset (let the CPU run) */
err = emi62_set_reset(dev,0);
+ if (err < 0) {
+ err("%s - error loading firmware: error = %d", __FUNCTION__, err);
+ goto wraperr;
+ }
+ msleep(250); /* let device settle */
/* 2. We upload the FPGA firmware into the EMI
* Note: collect up to 1023 (yes!) bytes and send them with
err("%s - error loading firmware: error = %d", __FUNCTION__, err);
goto wraperr;
}
+ msleep(250); /* let device settle */
/* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */
err("%s - error loading firmware: error = %d", __FUNCTION__, err);
goto wraperr;
}
+ msleep(250); /* let device settle */
kfree(buf);
module_init(emi62_init);
module_exit(emi62_exit);
-MODULE_AUTHOR("tapio laxström");
+MODULE_AUTHOR("Tapio Laxström");
MODULE_DESCRIPTION("Emagic EMI 6|2m firmware loader.");
MODULE_LICENSE("GPL");