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Rob Pearce 2021-11-27 16:58:52 +11:00
commit 295ca1b5c2
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10
Makefile Normal file
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CFLAGS=-g -Wall `pkg-config --cflags hidapi`
LDFLAGS=`pkg-config --libs hidapi`
all: lsusb howard
lsusb: lsusb.c
gcc -olsusb $(CFLAGS) $(LDFLAGS) lsusb.c
howard: howard.c howard.h
gcc -ohoward $(CFLAGS) $(LDFLAGS) howard.c

0
README.md Normal file
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237
howard.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <time.h>
#include <hidapi.h>
#include "howard.h"
#define MAX_STR 255
// Benestar sound meter
//#define MIC_VID (0x1630)
//#define MIC_PID (0x05dc)
#define MIC_VID (0x8817)
#define MIC_PID (0x2109)
#define CMD_CAPTURE (0xb3)
const char *rangestr[] = {
"30-130",
"30-80",
"50-100",
"60-110",
"80-130",
};
#define FLAG_DBCMODE (0x10)
#define FLAG_FASTMODE (0x40)
#define E_TIMEOUT -1
#define E_BADREAD -2
// ANSI stuff
#define BOLD "\x1b[1m"
#define ITALIC "\x1b[3m"
#define STRIKE "\x1b[9m"
#define PLAIN "\x1b[0m"
#define UNDERLINE "\x1b[4m"
#define RED "\x1b[31m"
#define MAGENTA "\x1b[35m"
#define GREEN "\x1b[32m"
#define YELLOW "\x1b[33m"
#define BLUE "\x1b[34m"
#define CYAN "\x1b[36m"
#define GREY "\x1b[2;37m"
void colprintf( char *prefix, const char *col, char *format, va_list *args ) {
printf("%s%s%s %s%s",col,BOLD,prefix,PLAIN,col);
vprintf(format, *args);
printf("%s\n",PLAIN);
}
void info( char* format, ... ) {
va_list args;
va_start(args, format);
colprintf( "*", CYAN, format, &args);
va_end( args );
}
void err( char* format, ... ) {
va_list args;
va_start(args, format);
colprintf( "ERROR:", RED, format, &args);
va_end( args );
}
void warn( char* format, ... ) {
va_list args;
va_start(args, format);
colprintf( "WARNING:", YELLOW, format, &args);
va_end( args );
}
int hextoint(char *hex) {
int base=16;
if (strstr(hex, "0x") == hex) {
base=0;
}
return strtol(hex, NULL, base);
}
int readresult(hid_device *dev, uint8_t *retbuf) {
int totbytes = 0;
int wantbytes = 8;
time_t starttime;
int timeoutms = 2000;
starttime = time(NULL);
while (totbytes != wantbytes) {
int thisbytes = 0;
thisbytes = hid_read_timeout(dev, &retbuf[totbytes], wantbytes + 1 - totbytes, timeoutms);
if (thisbytes < 0) {
err("Incomplete read from usb (got %d bytes, want %d bytes): %ls",totbytes,wantbytes, hid_error(dev));
return E_BADREAD;
}
totbytes += thisbytes;
if (time(NULL) - starttime > (timeoutms*1000)) {
warn("Timeout reading from usb");
return E_TIMEOUT;
}
}
return 0;
}
void showlevel(uint8_t *buf) {
uint16_t decibels;
uint8_t flags, rangeidx;
time_t now;
char *longformat = "%12s: %ld\n";
char *strformat = "%12s: %s\n";
char *dbformat = "%12s: %4.2f %s\n";
decibels = buf[0] << 8 | buf[1];
flags = buf[2];
rangeidx = buf[2] & 0xf;
now = time(NULL);
printf(longformat, "Time", now);
printf(dbformat, "Level", (double)decibels/10.0, flags & FLAG_DBCMODE ? "dBC" : "dBA");
printf(strformat, "Mode", flags & FLAG_FASTMODE ? "Fast" : "Slow");
printf(strformat, "Range", rangeidx > 0x4 ? "unknown" : rangestr[rangeidx]);
}
int main(int argc, char *argv[]) {
//unsigned char buf[65];
//wchar_t wstr[MAX_STR];
//hid_device *handle;
uint8_t capture_cmd[8] = { CMD_CAPTURE };
uint8_t buf[8];
int res;
int i;
enum mode_enum { M_PROBE, M_TEST } mode = M_PROBE;
hid_device *dev = NULL;
// handle args
for (i=1; i<argc;i++) {
if (!strstr(argv[i], "-t")) {
mode = M_TEST;
}
}
if (hid_init()) {
err("Failed to initialise hidapi.");
exit(1);
}
dev = hid_open(MIC_VID, MIC_PID, NULL);
if (!dev) {
err("Benestar USB sound meter not found (vendor 0x%04hx, product 0x%04hx).", MIC_VID, MIC_PID);
exit(1);
}
if (mode == M_TEST) {
info("Found Benestar USB sound meter (vendor 0x%04hx, product 0x%04hx).", MIC_VID, MIC_PID);
exit(0);
}
// get current reading
res = hid_write(dev, capture_cmd, 9);
// wait for response
// see: https://github.com/pvachon/gm1356/blob/master/splread.c
res = E_TIMEOUT;
while (res == E_TIMEOUT) {
res = readresult(dev, buf);
}
if (res == 0) {
showlevel(buf);
}
/*
ret = dev.ctrl_transfer(0xC0,4,0,0,200)
dB = (ret[0]+((ret[1]&3)*256))*0.1+30
print dB
msg="{'dB':'"+str(dB)+"'}"
try:
requests.post('https://temporacloud.com/connection/clientSend', data={'streams':streams,'tokens':tokens,'message':msg},verify=False)
except: None
*/
hid_close(dev);
hid_exit();
return 0;
}
/*
// Initialize the hidapi library
res = hid_init();
// Open the device using the VID, PID,
// and optionally the Serial number.
handle = hid_open(0x4d8, 0x3f, NULL);
// Read the Manufacturer String
res = hid_get_manufacturer_string(handle, wstr, MAX_STR);
wprintf(L"Manufacturer String: %s\n", wstr);
// Read the Product String
res = hid_get_product_string(handle, wstr, MAX_STR);
wprintf(L"Product String: %s\n", wstr);
// Read the Serial Number String
res = hid_get_serial_number_string(handle, wstr, MAX_STR);
wprintf(L"Serial Number String: (%d) %s\n", wstr[0], wstr);
// Read Indexed String 1
res = hid_get_indexed_string(handle, 1, wstr, MAX_STR);
wprintf(L"Indexed String 1: %s\n", wstr);
// Toggle LED (cmd 0x80). The first byte is the report number (0x0).
buf[0] = 0x0;
buf[1] = 0x80;
res = hid_write(handle, buf, 65);
// Request state (cmd 0x81). The first byte is the report number (0x0).
buf[0] = 0x0;
buf[1] = 0x81;
res = hid_write(handle, buf, 65);
// Read requested state
res = hid_read(handle, buf, 65);
// Print out the returned buffer.
for (i = 0; i < 4; i++)
printf("buf[%d]: %d\n", i, buf[i]);
// Close the device
hid_close(handle);
// Finalize the hidapi library
res = hid_exit();
*/

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howard.h Normal file
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void colprintf( char *prefix, const char *col, char* format, va_list *args );
void info( char* format, ... );
void err( char* format, ... );
void warn( char* format, ... );
int hextoint(char *hex);
int readresult(hid_device *dev, uint8_t *retbuf);
void showlevel(uint8_t *buf);

104
lsusb.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <hidapi.h>
#define MAX_STR 255
int hextoint(char *hex) {
int base=16;
if (strstr(hex, "0x") == hex) {
base=0;
}
return strtol(hex, NULL, base);
}
int main(int argc, char *argv[])
{
//unsigned char buf[65];
//wchar_t wstr[MAX_STR];
//hid_device *handle;
struct hid_device_info *alldevs, *dev;
unsigned short wantvendorid = 0,wantproductid = 0;
if (argc == 3) {
wantvendorid = hextoint(argv[1]);
wantproductid = hextoint(argv[2]);
} else if (argc == 2) {
wantvendorid = hextoint(argv[1]);
} else if (argc > 1) {
printf("usage: %s [vendor_id] [product_id]\n",argv[0]);
exit(1);
}
if (hid_init()) {
printf("Error initialising hidapi.");
exit(1);
}
alldevs = hid_enumerate(wantvendorid, wantproductid);
for (dev=alldevs; dev; dev = dev->next) {
printf("%s\n", dev->path);
printf(" Manufacturer: %ls\n", dev->manufacturer_string);
printf(" Vendor ID: 0x%04hx\n", dev->vendor_id);
printf(" Product ID: 0x%04hx (%ls)\n", dev->product_id, dev->product_string);
printf(" Serial: %ls\n", dev->serial_number);
printf(" Release: %hx\n", dev->release_number);
printf(" Interface: %d\n", dev->interface_number);
printf(" Usage (page): 0x%hx (0x%hx)\n", dev->usage, dev->usage_page);
printf("\n");
}
hid_exit();
return 0;
}
/*
// Initialize the hidapi library
res = hid_init();
// Open the device using the VID, PID,
// and optionally the Serial number.
handle = hid_open(0x4d8, 0x3f, NULL);
// Read the Manufacturer String
res = hid_get_manufacturer_string(handle, wstr, MAX_STR);
wprintf(L"Manufacturer String: %s\n", wstr);
// Read the Product String
res = hid_get_product_string(handle, wstr, MAX_STR);
wprintf(L"Product String: %s\n", wstr);
// Read the Serial Number String
res = hid_get_serial_number_string(handle, wstr, MAX_STR);
wprintf(L"Serial Number String: (%d) %s\n", wstr[0], wstr);
// Read Indexed String 1
res = hid_get_indexed_string(handle, 1, wstr, MAX_STR);
wprintf(L"Indexed String 1: %s\n", wstr);
// Toggle LED (cmd 0x80). The first byte is the report number (0x0).
buf[0] = 0x0;
buf[1] = 0x80;
res = hid_write(handle, buf, 65);
// Request state (cmd 0x81). The first byte is the report number (0x0).
buf[0] = 0x0;
buf[1] = 0x81;
res = hid_write(handle, buf, 65);
// Read requested state
res = hid_read(handle, buf, 65);
// Print out the returned buffer.
for (i = 0; i < 4; i++)
printf("buf[%d]: %d\n", i, buf[i]);
// Close the device
hid_close(handle);
// Finalize the hidapi library
res = hid_exit();
*/

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usbtools.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#include <hidapi.h>
#define MAX_STR 255
int main(int argc, char* argv[])
{
//unsigned char buf[65];
//wchar_t wstr[MAX_STR];
//hid_device *handle;
struct hid_device_info *alldevs, *dev;
if (hid_init()) {
printf("Error initialising hidapi.");
exit(1);
}
alldevs = hid_enumerate(0x0, 0x0);
for (dev=alldevs; dev; dev = dev->next) {
printf("path: %s\n", dev->path);
printf(" Manufacturer: %ls\n", dev->manufacturer_string);
printf(" Vendor ID: %04hx\n", dev->vendor_id);
printf(" Product: %ls (%04hx)\n", dev->product_string, dev->product_id);
printf(" Serial: %ls\n", dev->serial_number);
printf(" Release: %hx\n", dev->release_number);
printf(" Interface: %d\n", dev->interface_number);
printf(" Usage (page): 0x%hx (0x%hx)\n", dev->usage, dev->usage_page);
printf("\n");
}
hid_exit();
return 0;
}
/*
// Initialize the hidapi library
res = hid_init();
// Open the device using the VID, PID,
// and optionally the Serial number.
handle = hid_open(0x4d8, 0x3f, NULL);
// Read the Manufacturer String
res = hid_get_manufacturer_string(handle, wstr, MAX_STR);
wprintf(L"Manufacturer String: %s\n", wstr);
// Read the Product String
res = hid_get_product_string(handle, wstr, MAX_STR);
wprintf(L"Product String: %s\n", wstr);
// Read the Serial Number String
res = hid_get_serial_number_string(handle, wstr, MAX_STR);
wprintf(L"Serial Number String: (%d) %s\n", wstr[0], wstr);
// Read Indexed String 1
res = hid_get_indexed_string(handle, 1, wstr, MAX_STR);
wprintf(L"Indexed String 1: %s\n", wstr);
// Toggle LED (cmd 0x80). The first byte is the report number (0x0).
buf[0] = 0x0;
buf[1] = 0x80;
res = hid_write(handle, buf, 65);
// Request state (cmd 0x81). The first byte is the report number (0x0).
buf[0] = 0x0;
buf[1] = 0x81;
res = hid_write(handle, buf, 65);
// Read requested state
res = hid_read(handle, buf, 65);
// Print out the returned buffer.
for (i = 0; i < 4; i++)
printf("buf[%d]: %d\n", i, buf[i]);
// Close the device
hid_close(handle);
// Finalize the hidapi library
res = hid_exit();
*/