#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);
+ 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);
/* return 1 to fail the driver inialization
* and give real driver change to load */
info("%s start", __FUNCTION__);
- if((dev->descriptor.idVendor == EMI62_VENDOR_ID) && (dev->descriptor.idProduct == EMI62_PRODUCT_ID)) {
- emi62_load_firmware(dev);
- }
-
+ emi62_load_firmware(dev);
+
/* do not return the driver context, let real audio driver do that */
return -EIO;
}
{
}
-struct usb_driver emi62_driver = {
- .owner = THIS_MODULE,
+static struct usb_driver emi62_driver = {
.name = "emi62 - firmware loader",
.probe = emi62_probe,
.disconnect = emi62_disconnect,