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WSJT-X/set570.cpp
Joe Taylor d5d3feeb65 Add usb.h, remove hard-coded path to same. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/map65@3868 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2014-03-12 21:31:58 +00:00

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/* Linux / Windows program to control the frequency of a si570 synthesizer
ON5GN 6 jan 2012
Under Linux:
-use the linux version of function void si570_sleep(int us)
-compile with
gcc -Wall -o set_si570_freq set_si570_freq.c -lusb -lm
-run with sudo ./set_si570_freq
Under Windows:
-use the windows version of function void si570_sleep(int us)
-compile with mingw
C:\mingw\bin\mingw32-gcc -Wall -o set_si570_freq set_si570_freq.c -lusb -lm
-run with set_si570_freq.exe
*/
#include <stdio.h> /* Standard input/output definitions */
#include <string.h> /* String function definitions */
#include <unistd.h> /* UNIX standard function definitions */
#include <sys/time.h>
#ifdef WIN32
#include <windows.h>
#endif
#include <usb.h>
//#include "/users/joe/linrad/3.37/usb.h"
#include <QDebug>
#define USB_SUCCESS 0
#define USB_ERROR_NOTFOUND 1
#define USB_ERROR_ACCESS 2
#define USB_ERROR_IO 3
#define VENDOR_NAME "www.obdev.at"
#define PRODUCT_NAME "DG8SAQ-I2C"
#define USBDEV_SHARED_VENDOR 0x16C0 // VOTI VID
#define USBDEV_SHARED_PRODUCT 0x05DC // OBDEV PID
// Use obdev's generic shared VID/PID pair
// following the rules outlined in
// firmware/usbdrv/USBID-License.txt.
#define REQUEST_SET_FREQ_BY_VALUE 0x32
#define MAX_USB_ERR_CNT 6
double freq_parm;
double delay_average;
int from_freq;
int to_freq;
int increment_freq;
int retval = -1;
int display_freq = -1;
int delay;
usb_dev_handle *global_si570usb_handle = NULL;
// ********sleep functions***************
//use this function under LINUX
/*
void si570_sleep(int us)
{
usleep(us);
}
*/
//use this function under WINDOWS
void si570_sleep(int us)
{
Sleep(us/1000);
}
double round(double x)
{
int i=x+0.5;
return (double)i;
}
double current_time(void) //for delay measurements
{
struct timeval t;
gettimeofday(&t,NULL);
return 0.000001*t.tv_usec+t.tv_sec;
}
int usbGetStringAscii(usb_dev_handle *dev, int my_index,
int langid, char *buf, int buflen);
unsigned char Si570usbOpenDevice(usb_dev_handle **device, char *usbSerialID);
void setLongWord( int value, char * bytes);
int setFreqByValue(usb_dev_handle * handle, double frequency);
void sweepa_freq(void);
void sweepm_freq(void);
int set570(double freq_MHz)
{
char * my_usbSerialID = NULL;
// MAIN MENU DIALOG
retval=Si570usbOpenDevice(&global_si570usb_handle, my_usbSerialID);
if (retval != 0) return -1;
//SET FREQUENCY
if((freq_MHz < 3.45)|(freq_MHz > 866.0)) return -2;
retval=setFreqByValue(global_si570usb_handle,freq_MHz);
return 0;
}
int usbGetStringAscii(usb_dev_handle *dev, int my_index,
int langid, char *buf, int buflen)
{
char buffer[256];
int rval, i;
if((rval = usb_control_msg(dev, USB_ENDPOINT_IN, USB_REQ_GET_DESCRIPTOR,
(USB_DT_STRING << 8) + my_index, langid, buffer,
sizeof(buffer), 1000)) < 0) return rval;
if(buffer[1] != USB_DT_STRING) return 0;
if((unsigned char)buffer[0] < rval) rval = (unsigned char)buffer[0];
rval /= 2;
// lossy conversion to ISO Latin1
for(i=1;i<rval;i++) {
if(i > buflen) break; // destination buffer overflow
buf[i-1] = buffer[2 * i];
if(buffer[2 * i + 1] != 0) buf[i-1] = '?'; // outside of ISO Latin1 range
}
buf[i-1] = 0;
return i-1;
}
unsigned char Si570usbOpenDevice(usb_dev_handle **device, char *usbSerialID)
{
struct usb_bus *bus;
struct usb_device *dev;
usb_dev_handle *handle = NULL;
unsigned char errorCode = USB_ERROR_NOTFOUND;
char string[256];
int len;
int vendor = USBDEV_SHARED_VENDOR;
char *vendorName = (char *)VENDOR_NAME;
int product = USBDEV_SHARED_PRODUCT;
char *productName = (char *)PRODUCT_NAME;
char serialNumberString[20];
static int didUsbInit = 0;
if(!didUsbInit) {
didUsbInit = 1;
usb_init();
}
usb_find_busses();
usb_find_devices();
for(bus=usb_get_busses(); bus; bus=bus->next) {
for(dev=bus->devices; dev; dev=dev->next) {
if(dev->descriptor.idVendor == vendor &&
dev->descriptor.idProduct == product) {
handle = usb_open(dev); // open the device in order to query strings
if(!handle) {
errorCode = USB_ERROR_ACCESS;
printf("si570.c: Warning: cannot open Si570-USB device:\n");
printf("usb error message: %s\n",usb_strerror());
continue;
}
if(vendorName == NULL && productName == NULL) { //name does not matter
break;
}
// now check whether the names match
len = usbGetStringAscii(handle, dev->descriptor.iManufacturer, 0x0409, string, sizeof(string));
if(len < 0) {
errorCode = USB_ERROR_IO;
printf("si570.c: Warning: cannot query manufacturer for Si570-USB device:\n");
printf("usb error message: %s\n",usb_strerror());
} else {
errorCode = USB_ERROR_NOTFOUND;
//fprintf(stderr, "seen device from vendor ->%s<-\n", string);
if(strcmp(string, vendorName) == 0){
len = usbGetStringAscii(handle, dev->descriptor.iProduct,
0x0409, string, sizeof(string));
if(len < 0) {
errorCode = USB_ERROR_IO;
printf("si570.c: Warning: cannot query product for Si570-USB device: \n");
printf("usb error message: %s\n",usb_strerror());
} else {
errorCode = USB_ERROR_NOTFOUND;
// fprintf(stderr, "seen product ->%s<-\n", string);
if(strcmp(string, productName) == 0) {
len = usbGetStringAscii(handle, dev->descriptor.iSerialNumber,
0x0409, serialNumberString, sizeof(serialNumberString));
if (len < 0) {
errorCode = USB_ERROR_IO;
printf("si570.c: Warning: cannot query serial number for Si570-USB device: \n");
printf("usb error message: %s\n",usb_strerror());
} else {
errorCode = USB_ERROR_NOTFOUND;
if ((usbSerialID == NULL) ||
(strcmp(serialNumberString, usbSerialID) == 0)) {
// printf("\nOpen Si570 USB device: OK\n");
// printf("usbSerialID : %s\n",serialNumberString);
break;
}
}
}
}
}
}
usb_close(handle);
handle = NULL;
}
}
if(handle) break;
}
if(handle != NULL) {
errorCode = USB_SUCCESS;
*device = handle;
}
return errorCode;
}
void setLongWord( int value, char * bytes)
{
bytes[0] = value & 0xff;
bytes[1] = ((value & 0xff00) >> 8) & 0xff;
bytes[2] = ((value & 0xff0000) >> 16) & 0xff;
bytes[3] = ((value & 0xff000000) >> 24) & 0xff;
}
int setFreqByValue(usb_dev_handle * handle, double frequency)
{
// Windows Doc from PE0FKO:
//
// Command 0x32:
// -------------
// Set the oscillator frequency by value. The frequency is formatted in MHz
// as 11.21 bits value.
// The "automatic band pass filter selection", "smooth tune",
// "one side calibration" and the "frequency subtract multiply" are all
// done in this function. (if enabled in the firmware)
//
// Default: None
//
// Parameters:
// requesttype: USB_ENDPOINT_OUT
// request: 0x32
// value: 0
// index: 0
// bytes: pointer 32 bits integer
// size: 4
//
// Code sample:
// uint32_t iFreq;
// double dFreq;
//
// dFreq = 30.123456; // MHz
// iFreq = (uint32_t)( dFreq * (1UL << 21) )
// r = usbCtrlMsgOUT(0x32, 0, 0, (char *)&iFreq, sizeof(iFreq));
// if (r < 0) Error
//
char buffer[4];
int i2cAddress = 0x55;
int request = REQUEST_SET_FREQ_BY_VALUE;
int value = 0x700 + i2cAddress;
int my_index = 0;
int retval;
int err_cnt;
err_cnt =0;
set_again:;
setLongWord(round(frequency * 2097152.0), buffer); // 2097152=2^21
retval=usb_control_msg(
handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT,
request,
value,
my_index,
buffer,
sizeof(buffer),
5000);
if (retval != 4) {
err_cnt ++;
if(err_cnt < MAX_USB_ERR_CNT) {
si570_sleep(1000); // delay 1000 microsec
goto set_again;
} else {
printf("Error when setting frequency, returncode=%i\n",retval);
printf("usb error message: %s\n", usb_strerror());
}
}
return retval;
}
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