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/* $OpenBSD: ezload.c,v 1.13 2014/07/12 18:48:52 tedu Exp $ */
/* $NetBSD: ezload.c,v 1.5 2002/07/11 21:14:25 augustss Exp $ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson <lennart@augustsson.net>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/ezload.h>
/*
* Vendor specific request code for Anchor Upload/Download
*/
/* This one is implemented in the core */
#define ANCHOR_LOAD_INTERNAL 0xA0
/* This is the highest internal RAM address for the AN2131Q */
#define ANCHOR_MAX_INTERNAL_ADDRESS 0x1B3F
/*
* EZ-USB Control and Status Register. Bit 0 controls 8051 reset
*/
#define ANCHOR_CPUCS_REG 0x7F92
#define ANCHOR_RESET 0x01
/*
* Although USB does not limit you here, the Anchor docs
* quote 64 as a limit, and Mato@activewireinc.com suggested
* to use 16.
*/
#define ANCHOR_CHUNK 16
/*
* This is a firmware loader for ezusb (Anchor) devices. When the firmware
* has been downloaded the device will simulate a disconnect and when it
* is next recognized by the USB software it will appear as another
* device.
*/
#ifdef USB_DEBUG
#define DPRINTF(x) if (ezloaddebug) printf x
#define DPRINTFN(n,x) if (ezloaddebug>(n)) printf x
int ezloaddebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
usbd_status
ezload_reset(struct usbd_device *dev, int reset)
{
usb_device_request_t req;
uByte rst;
DPRINTF(("ezload_reset: reset=%d\n", reset));
rst = reset ? ANCHOR_RESET : 0;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = ANCHOR_LOAD_INTERNAL;
USETW(req.wValue, ANCHOR_CPUCS_REG);
USETW(req.wIndex, 0);
USETW(req.wLength, 1);
return (usbd_do_request(dev, &req, &rst));
}
usbd_status
ezload_download(struct usbd_device *dev, const char *name, const u_char *buf,
size_t buflen)
{
usb_device_request_t req;
usbd_status err = 0;
u_int8_t length;
u_int16_t address;
u_int len, offs;
for (;;) {
length = *buf++;
if (length == 0)
break;
address = UGETW(buf); buf += 2;
#if 0
if (address + length > ANCHOR_MAX_INTERNAL_ADDRESS)
return (USBD_INVAL);
#endif
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = ANCHOR_LOAD_INTERNAL;
USETW(req.wIndex, 0);
for (offs = 0; offs < length; offs += ANCHOR_CHUNK) {
len = length - offs;
if (len > ANCHOR_CHUNK)
len = ANCHOR_CHUNK;
USETW(req.wValue, address + offs);
USETW(req.wLength, len);
DPRINTFN(2,("ezload_download: addr=0x%x len=%d\n",
address + offs, len));
err = usbd_do_request(dev, &req, (u_char *)buf);
if (err)
break;
buf += len;
}
if (err)
break;
}
return (err);
}
usbd_status
ezload_downloads_and_reset(struct usbd_device *dev, char **names)
{
usbd_status err;
size_t buflen;
u_char *buf;
int error;
/*(void)ezload_reset(dev, 1);*/
err = ezload_reset(dev, 1);
if (err)
return (err);
usbd_delay_ms(dev, 250);
while (*names != NULL) {
error = loadfirmware(*names, &buf, &buflen);
if (error)
return (error);
err = ezload_download(dev, *names, buf, buflen);
free(buf, M_DEVBUF, 0);
if (err)
return (err);
names++;
}
if (err)
return (err);
usbd_delay_ms(dev, 250);
/*(void)ezload_reset(dev, 0);*/
err = ezload_reset(dev, 0);
usbd_delay_ms(dev, 250);
return (err);
}
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