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111 lines
4.7 KiB
111 lines
4.7 KiB
/* 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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#include <stdio.h>
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#include <stdlib.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 "../firmware/masterchip/usbdrv/usbconfig.h" /* device's VID/PID and names */
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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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char buffer[4];
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int cnt, vid, pid;
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usb_init();
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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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/* Since we use only control endpoint 0, we don't need to choose a
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* configuration and interface. Reading device descriptor and setting a
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* configuration and interface is done through endpoint 0 after all.
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* However, newer versions of Linux require that we claim an interface
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* even for endpoint 0. Enable the following code if your operating system
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* needs it: */
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#if 0
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int retries = 1, usbConfiguration = 1, usbInterface = 0;
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if(usb_set_configuration(handle, usbConfiguration) && showWarnings){
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fprintf(stderr, "Warning: could not set configuration: %s\n", usb_strerror());
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}
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/* now try to claim the interface and detach the kernel HID driver on
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* Linux and other operating systems which support the call. */
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while((len = usb_claim_interface(handle, usbInterface)) != 0 && retries-- > 0){
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#ifdef LIBUSB_HAS_DETACH_KERNEL_DRIVER_NP
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if(usb_detach_kernel_driver_np(handle, 0) < 0 && showWarnings){
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fprintf(stderr, "Warning: could not detach kernel driver: %s\n", usb_strerror());
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}
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#endif
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}
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#endif
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int rxValue, rxIndex;
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int value = 0, index = 0;
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if(strcasecmp(argv[1], "temp") == 0) {
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int i=0;
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cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, 100, value, index, buffer, sizeof(buffer), 5000);
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if(cnt < 0){
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fprintf(stderr, "\nUSB error in iteration %d: %s\n", i, usb_strerror());
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}
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rxValue = ((int)buffer[1] & 0xff) | (((int)buffer[0] & 0xff) << 8);
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rxIndex = ((int)buffer[3] & 0xff) | (((int)buffer[2] & 0xff) << 8);
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fprintf(stderr, "%3d.%02d*C ", rxValue/100, rxValue%100);
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fprintf(stderr, "%3d.%02d*C \n", rxIndex/100, rxIndex%100);
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cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, 101, value, index, buffer, sizeof(buffer), 5000);
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if(cnt < 0){
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fprintf(stderr, "\nUSB error in iteration %d: %s\n", i, usb_strerror());
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}
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rxValue = ((int)buffer[1] & 0xff) | (((int)buffer[0] & 0xff) << 8);
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rxIndex = ((int)buffer[3] & 0xff) | (((int)buffer[2] & 0xff) << 8);
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fprintf(stderr, "%3d.%02d*C ", rxValue/100, rxValue%100);
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fprintf(stderr, "%3d.%02d*C \n", rxIndex/100, rxIndex%100);
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} else {
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int opcode, addr, value;
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int i=0;
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sscanf(argv, "%i %i %i", &opcode, &addr, &value);
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cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, opcode, addr, value, buffer, sizeof(buffer), 5000);
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if(cnt < 0){
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fprintf(stderr, "\nUSB error in iteration %d: %s\n", i, usb_strerror());
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}
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rxValue = ((int)buffer[1] & 0xff) | (((int)buffer[0] & 0xff) << 8);
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rxIndex = ((int)buffer[3] & 0xff) | (((int)buffer[2] & 0xff) << 8);
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fprintf(stderr, "request = 0x%04x", opcode);
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fprintf(stderr, "rxValue = 0x%04x value = 0x%04x\n", rxValue, addr);
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fprintf(stderr, "rxIndex = 0x%04x index = 0x%04x\n", rxIndex, value);
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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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