163 lines
5.1 KiB
C
163 lines
5.1 KiB
C
/* Name: set-led.c
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* Project: custom-class, a basic USB example
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* Author: Christian Starkjohann
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* Creation Date: 2008-04-10
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* Tabsize: 4
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* Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
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* License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
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* This Revision: $Id: set-led.c 692 2008-11-07 15:07:40Z cs $
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*/
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/*
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General Description:
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This is the host-side driver for the custom-class example device. It searches
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the USB for the LEDControl device and sends the requests understood by this
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device.
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This program must be linked with libusb on Unix and libusb-win32 on Windows.
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See http://libusb.sourceforge.net/ or http://libusb-win32.sourceforge.net/
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respectively.
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*/
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#define BUFFER_SIZE 4
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#define BUFFER_CRC (1024 * 64)
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#define BANK_SIZE (1<<15)
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <usb.h> /* this is libusb */
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#include "opendevice.h" /* common code moved to separate module */
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#include "../requests.h" /* custom request numbers */
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#include "../usbconfig.h" /* device's VID/PID and names */
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uint16_t crc_xmodem_update (uint16_t crc, uint8_t data){
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int i;
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crc = crc ^ ((uint16_t)data << 8);
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for (i=0; i<8; i++)
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{
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if (crc & 0x8000)
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crc = (crc << 1) ^ 0x1021;
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else
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crc <<= 1;
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}
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return crc;
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}
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uint16_t do_crc(uint8_t * data,uint16_t size){
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uint16_t crc =0;
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uint16_t i;
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for (i=0; i<size; i++){
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crc = crc_xmodem_update(crc,data[i]);
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}
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return crc;
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}
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uint16_t do_crc_update(uint16_t crc,uint8_t * data,uint16_t size){
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uint16_t i;
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for (i=0; i<size; i++)
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crc = crc_xmodem_update(crc,data[i]);
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return crc;
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}
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static void usage(char *name)
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{
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fprintf(stderr, "usage:\n");
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fprintf(stderr, " %s upload filename.. upload\n", name);
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}
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int main(int argc, char **argv)
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{
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usb_dev_handle *handle = NULL;
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const unsigned char rawVid[2] = {USB_CFG_VENDOR_ID}, rawPid[2] = {USB_CFG_DEVICE_ID};
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char vendor[] = {USB_CFG_VENDOR_NAME, 0}, product[] = {USB_CFG_DEVICE_NAME, 0};
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int cnt, vid, pid;
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int cnt_crc = 0;
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unsigned char *read_buffer;
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unsigned char *crc_buffer;
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unsigned char setup_buffer[8];
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unsigned int addr = 0;
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unsigned int bank_addr;
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unsigned int bank_num;
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uint16_t crc = 0;
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FILE *fp ;
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usb_init();
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if(argc < 2){ /* we need at least one argument */
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usage(argv[0]);
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exit(1);
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}
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/* compute VID/PID from usbconfig.h so that there is a central source of information */
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vid = rawVid[1] * 256 + rawVid[0];
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pid = rawPid[1] * 256 + rawPid[0];
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/* The following function is in opendevice.c: */
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if(usbOpenDevice(&handle, vid, vendor, pid, product, NULL, NULL, NULL) != 0){
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fprintf(stderr, "Could not find USB device \"%s\" with vid=0x%x pid=0x%x\n", product, vid, pid);
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exit(1);
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}
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if(strcasecmp(argv[1], "upload") == 0){
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if(argc < 3){ /* we need at least one argument */
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usage(argv[0]);
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exit(1);
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}
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fp = fopen (argv[2],"r") ;
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if (fp==NULL){
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fprintf(stderr, "Cannot open file %s ", argv[2]);
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exit(1);
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}
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read_buffer = (unsigned char*)malloc(BUFFER_SIZE);
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crc_buffer = (unsigned char*)malloc(BUFFER_CRC);
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memset(crc_buffer,0,BUFFER_CRC);
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addr = 0x000000;
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bank_addr = addr& 0xffff;
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bank_num = (addr>>16) & 0xff;
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while((cnt = fread(read_buffer, BUFFER_SIZE, 1, fp)) > 0){
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bank_addr = addr& 0xffff;
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bank_num = (addr>>16) & 0xff;
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memcpy(crc_buffer + cnt_crc,read_buffer,BUFFER_SIZE);
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cnt_crc += BUFFER_SIZE;
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if (cnt_crc == BANK_SIZE){
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crc = do_crc(crc_buffer,BANK_SIZE);
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printf("Addr: 0x%06x Bank: 0x%02x Rom Addr: 0x%04x Addr: 0x%06x Cnt: 0x%04x\n",addr,bank_num, bank_addr, addr,crc);
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memset(crc_buffer,0,BUFFER_CRC);
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cnt_crc =0;
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}
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usb_control_msg(handle,
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USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT,
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CUSTOM_RQ_UPLOAD, bank_num, bank_addr,
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(char*) read_buffer, BUFFER_SIZE,
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5000);
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addr += BUFFER_SIZE;
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//printf("Addr: 0x%06x Bank: 0x%02x Rom Addr: 0x%04x Addr: 0x%06x Cnt: 0x%04x cnt: %i\n",addr,bank_num, bank_addr, addr,crc,cnt_crc);
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}
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cnt = usb_control_msg(handle,
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USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT,
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CUSTOM_RQ_CRC_CHECK, bank_num + 1, 0,
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(char*) setup_buffer, sizeof(setup_buffer),
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5000);
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if(cnt < 1){
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if(cnt < 0){
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fprintf(stderr, "USB error: %s\n", usb_strerror());
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}else{
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fprintf(stderr, "only %d bytes received.\n", cnt);
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}
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}
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}else{
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usage(argv[0]);
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exit(1);
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}
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usb_close(handle);
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return 0;
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}
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