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/*
LPCUSB, an USB device driver for LPC microcontrollers
Copyright (C) 2006 Bertrik Sikken (bertrik@sikken.nl)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
Simple benchmarking application.
It talks with the 'custom' device application on the LPC214x through
libusb.
2007-11-01: Some minor modifications by <bjorn@haxx.se>
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/timeb.h>
#include "usb.h"
// types
#ifndef MIN
#define MIN(a,b) ((a)<(b)?(a):(b))
#endif
typedef unsigned int U32;
typedef unsigned char U8;
#define MAX_TIME 3000
static unsigned char abData[16384];
// USB device specific definitions
#define VENDOR_ID 0x0781
#define PRODUCT_ID 0x7450
#define BM_REQUEST_TYPE (2<<5)
#define BULK_IN_EP 0x82
#define BULK_OUT_EP 0x05
// this structure should match with the expectations of the 'custom' device!
typedef struct {
U32 dwAddress;
U32 dwLength;
} TMemoryCmd;
static struct usb_device * find_device(int iVendor, int iProduct)
{
struct usb_bus *usb_bus;
struct usb_device *dev;
for (usb_bus = usb_get_busses(); usb_bus; usb_bus = usb_bus->next) {
for (dev = usb_bus->devices; dev; dev = dev->next) {
if ((dev->descriptor.idVendor == iVendor) &&
(dev->descriptor.idProduct == iProduct)) {
return dev;
}
}
}
return NULL;
}
static struct timeb start;
static void starttimer(void)
{
ftime(&start);
}
static int stoptimer(void)
{
struct timeb now;
ftime(&now);
return 1000 * (now.time - start.time) + now.millitm - start.millitm;
}
int main(void)
{
const int blocksize[] = { 128, 512 };
struct usb_device *dev;
struct usb_dev_handle *hdl;
int i, j;
U32 dwBlockSize, dwChunk, dwBytes;
TMemoryCmd MemCmd;
int iTimer;
usb_init();
usb_find_busses();
usb_find_devices();
for (i=0; i<sizeof abData/4; i++)
((unsigned int*)abData)[i] = i;
dev = find_device(VENDOR_ID, PRODUCT_ID);
if (dev == NULL) {
fprintf(stderr, "device not found\n");
return -1;
}
hdl = usb_open(dev);
i = usb_set_configuration(hdl, 1);
if (i < 0) {
fprintf(stderr, "usb_set_configuration failed\n");
}
i = usb_claim_interface(hdl, 0);
if (i < 0) {
fprintf(stderr, "usb_claim_interface failed %d\n", i);
return -1;
}
// read some data
for (j = 0; j < 1; j++) {
dwBlockSize = blocksize[j];
fprintf(stderr, "Testing blocksize %5d\n", dwBlockSize);
#if 1
fprintf(stderr, "* write:");
// send a vendor request for a write
MemCmd.dwAddress = 0;
MemCmd.dwLength = 20 * 1024;
i = usb_control_msg(hdl, BM_REQUEST_TYPE, 0x02, 20, 1024, NULL, 0, 1000);
if (i < 0) {
fprintf(stderr, "usb_control_msg failed %d\n", i);
break;
}
dwBytes = 0;
starttimer();
while (MemCmd.dwLength > 0) {
dwChunk = MIN(dwBlockSize, MemCmd.dwLength);
i = usb_bulk_write(hdl, 0x01, (char *)abData, dwChunk, 2000);
if (i < 1) {
fprintf(stderr, "usb_bulk_write failed %d\n", i);
break;
}
MemCmd.dwLength -= dwChunk;
dwBytes += dwBlockSize;
if (stoptimer() > MAX_TIME) {
break;
}
((unsigned int*)abData)[0]++;
}
if (i<0)
break;
iTimer = stoptimer();
if (iTimer)
fprintf(stderr, " %7d bytes in %d ms = %d kB/s\n", dwBytes, iTimer, dwBytes / iTimer);
// stdout
printf("%d,%d,%d\n", dwBlockSize, dwBytes, iTimer);
#endif
#if 1
fprintf(stderr, "* read :");
// send a vendor request for a read
MemCmd.dwAddress = 0;
MemCmd.dwLength = 20 * 1024;
i = usb_control_msg(hdl, BM_REQUEST_TYPE, 0x01, 20, 1024, NULL, 0, 1000);
if (i < 0) {
fprintf(stderr, "usb_control_msg failed %d\n", i);
break;
}
dwBytes = 0;
starttimer();
while (MemCmd.dwLength > 0) {
dwChunk = MIN(dwBlockSize, MemCmd.dwLength);
i = usb_bulk_read(hdl, 0x82, (char *)abData, dwChunk, 2000);
if (i < 1) {
fprintf(stderr, "usb_bulk_read failed %d\n", i);
break;
}
MemCmd.dwLength -= dwChunk;
dwBytes += dwBlockSize;
if (stoptimer() > MAX_TIME) {
break;
}
}
if (i<0)
break;
iTimer = stoptimer();
if (iTimer)
fprintf(stderr, " %7d bytes in %d ms = %d kB/s\n", dwBytes, iTimer, dwBytes / iTimer);
// stdout
printf("%d,%d,%d\n", dwBlockSize, dwBytes, iTimer);
#endif
}
usb_release_interface(hdl, 0);
usb_close(hdl);
return 0;
}
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