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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.
- */
- #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 0xFFFF
- #define PRODUCT_ID 0x0004
- #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(int argc, char *argv[])
- {
- 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();
-
- 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 = 6; j < 15; j++) {
- dwBlockSize = (1 << j);
- fprintf(stderr, "Testing blocksize %5d\n", dwBlockSize);
- fprintf(stderr, "* read :");
- // send a vendor request for a read
- MemCmd.dwAddress = 0;
- MemCmd.dwLength = 1024 * 1024;
- i = usb_control_msg(hdl, BM_REQUEST_TYPE, 0x01, 0, 0, (char *)&MemCmd, sizeof(MemCmd), 1000);
- if (i < 0) {
- fprintf(stderr, "usb_control_msg failed %d\n", i);
- }
- dwBytes = 0;
- starttimer();
- while (MemCmd.dwLength > 0) {
- dwChunk = MIN(dwBlockSize, MemCmd.dwLength);
- i = usb_bulk_read(hdl, 0x82, (char *)abData, dwBlockSize, 2000);
- if (i < 0) {
- fprintf(stderr, "usb_bulk_read failed %d\n", i);
- break;
- }
- MemCmd.dwLength -= dwChunk;
- dwBytes += dwBlockSize;
- if (stoptimer() > MAX_TIME) {
- break;
- }
- }
- iTimer = stoptimer();
- fprintf(stderr, " %7d bytes in %d ms = %d kB/s\n", dwBytes, iTimer, dwBytes / iTimer);
- // stdout
- printf("%d,%d,%d,", dwBlockSize, dwBytes, iTimer);
- fprintf(stderr, "* write:");
- // send a vendor request for a write
- MemCmd.dwAddress = 0;
- MemCmd.dwLength = 1024 * 1024;
- i = usb_control_msg(hdl, BM_REQUEST_TYPE, 0x02, 0, 0, (char *)&MemCmd, sizeof(MemCmd), 1000);
- if (i < 0) {
- fprintf(stderr, "usb_control_msg failed %d\n", i);
- }
- dwBytes = 0;
- starttimer();
- while (MemCmd.dwLength > 0) {
- dwChunk = MIN(dwBlockSize, MemCmd.dwLength);
- i = usb_bulk_write(hdl, 0x05, (char *)abData, dwBlockSize, 2000);
- if (i < 0) {
- fprintf(stderr, "usb_bulk_read failed %d\n", i);
- break;
- }
- MemCmd.dwLength -= dwChunk;
- dwBytes += dwBlockSize;
- if (stoptimer() > MAX_TIME) {
- break;
- }
- }
- fprintf(stderr, " %7d bytes in %d ms = %d kB/s\n", dwBytes, iTimer, dwBytes / iTimer);
- // stdout
- printf("%d,%d,%d\n", dwBlockSize, dwBytes, iTimer);
- }
- usb_release_interface(hdl, 0);
- usb_close(hdl);
- return 0;
- }
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