250 lines
7.2 KiB
C
250 lines
7.2 KiB
C
/*
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* Name: set-led.c Project: custom-class, a basic USB example Author:
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* Christian Starkjohann Creation Date: 2008-04-10 Tabsize: 4 Copyright: (c)
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* 2008 by OBJECTIVE DEVELOPMENT Software GmbH License: GNU GPL v2 (see
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* License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt) This
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* 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: This is the host-side driver for the custom-class
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* example device. It searches the USB for the LEDControl device and sends the
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* requests understood by this device. This program must be linked with libusb
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* on Unix and libusb-win32 on Windows. See http://libusb.sourceforge.net/ or
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* http://libusb-win32.sourceforge.net/ respectively.
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*/
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#define READ_BUFFER_SIZE 1024
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#define SEND_BUFFER_SIZE 128
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#define BUFFER_CRC (1024 * 32)
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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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void dump_packet(uint32_t addr, uint32_t len, uint8_t * packet)
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{
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uint16_t i,
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j;
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uint16_t sum = 0;
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uint8_t clear = 0;
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for (i = 0; i < len; i += 16) {
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sum = 0;
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for (j = 0; j < 16; j++) {
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sum += packet[i + j];
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}
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if (!sum) {
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clear = 1;
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continue;
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}
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if (clear) {
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printf("*\n");
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clear = 0;
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}
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printf("%08x:", addr + i);
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for (j = 0; j < 16; j++) {
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printf(" %02x", packet[i + j]);
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}
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printf(" |");
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for (j = 0; j < 16; j++) {
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if (packet[i + j] >= 33 && packet[i + j] <= 126)
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printf("%c", packet[i + j]);
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else
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printf(".");
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}
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printf("|\n");
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}
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}
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uint16_t crc_xmodem_update(uint16_t crc, uint8_t data)
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{
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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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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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{
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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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{
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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] = {
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USB_CFG_DEVICE_ID};
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char vendor[] = { USB_CFG_VENDOR_NAME, 0 }, product[] = {
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USB_CFG_DEVICE_NAME, 0};
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int cnt,
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vid,
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pid;
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int cnt_crc = 0;
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uint8_t *read_buffer;
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uint8_t *crc_buffer;
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uint32_t addr = 0;
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uint16_t addr_lo = 0;
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uint16_t addr_hi = 0;
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uint16_t step = 0;
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uint16_t crc = 0;
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uint8_t bank = 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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/*
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* compute VID/PID from usbconfig.h so that there is a central source
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* of information
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*/
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vid = rawVid[1] * 256 + rawVid[0];
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pid = rawPid[1] * 256 + rawPid[0];
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/*
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* The following function is in opendevice.c:
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*/
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if (usbOpenDevice(&handle, vid, vendor, pid, product, NULL, NULL, NULL) !=
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0) {
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fprintf(stderr,
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"Could not find USB device \"%s\" with vid=0x%x pid=0x%x\n",
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product, vid, pid);
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exit(1);
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}
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printf("Open USB device \"%s\" with vid=0x%x pid=0x%x\n", product, vid,
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pid);
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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(READ_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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usb_control_msg(handle,
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USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT,
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USB_UPLOAD_INIT, 0, 0, NULL, 0, 5000);
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while ((cnt = fread(read_buffer, READ_BUFFER_SIZE, 1, fp)) > 0) {
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for (step = 0; step < READ_BUFFER_SIZE; step += SEND_BUFFER_SIZE) {
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addr_lo = addr & 0xffff;
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addr_hi = (addr >> 16) & 0xff;
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cnt = usb_control_msg(handle,
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USB_TYPE_VENDOR | USB_RECIP_DEVICE |
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USB_ENDPOINT_OUT, USB_UPLOAD_ADDR, addr_hi,
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addr_lo, (char *) read_buffer + step,
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SEND_BUFFER_SIZE, 5000);
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if (cnt < 0) {
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fprintf(stderr, "USB error: %s\n", usb_strerror());
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exit(-1);
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}
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#if 0
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dump_packet(addr, SEND_BUFFER_SIZE, read_buffer + step);
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#endif
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addr += SEND_BUFFER_SIZE;
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}
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memcpy(crc_buffer + cnt_crc, read_buffer, READ_BUFFER_SIZE);
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cnt_crc += READ_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
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("Addr: 0x%06x Bank: 0x%02x HiAddr: 0x%02x LoAddr: 0x%04x Crc: 0x%04x\n",
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addr, bank, addr_hi, addr_lo, crc);
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memset(crc_buffer, 0, BUFFER_CRC);
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bank++;
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cnt_crc = 0;
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}
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}
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cnt = usb_control_msg(handle,
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USB_TYPE_VENDOR | USB_RECIP_DEVICE |
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USB_ENDPOINT_OUT, USB_CRC, addr_hi, addr_lo, NULL,
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0, 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 if (strcasecmp(argv[1], "crc") == 0) {
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/*
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* if(argc < 2){ usage(argv[0]); exit(1); }
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*/
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addr = 0x000000;
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addr_lo = addr & 0xffff;
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addr_hi = (addr >> 16) & 0xff;
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printf("Request CRC for Addr: 0x%06x\n", addr);
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cnt = usb_control_msg(handle,
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USB_TYPE_VENDOR | USB_RECIP_DEVICE |
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USB_ENDPOINT_OUT, USB_CRC_ADDR, addr_hi, addr_lo,
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NULL, (1 << 15) / 4, 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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