Date: Sun, 18 Jul 2010 18:51:20 -0500 From: Ryan Coleman <editor@d3photography.com> To: freebsd-questions@freebsd.org Subject: Radio Shark 2 Message-ID: <A6ACACAE-B445-4CAF-8A61-9FB24536BBB7@d3photography.com>
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Does anyone have an experience getting the Radio Shark 2 set up? I'm =
hoping to use it for radio streaming in my apartment.=20
I've found shark2.c on the net and gcc is failing to compile it; I'm a =
PHP developer with a lot of admin time on FreeBSD (8-RELEASE, AMD64 =
build presently) but can't get my head around that piece.
root@server /usr/local/include]# gcc -g -o shark2 -lhid shark2.c
In file included from shark2.c:21:
/usr/include/hid.h:6:23: error: hidparser.h: No such file or directory
In file included from shark2.c:21:
/usr/include/hid.h:69: error: expected specifier-qualifier-list before =
'HIDData'
shark2.c: In function 'main':
shark2.c:98: warning: incompatible implicit declaration of built-in =
function 'exit'
shark2.c:102: warning: incompatible implicit declaration of built-in =
function 'exit'
[[Basically it's not finding hidparser.h - I get that - but it isn't =
checking paths to look for it or I just can't seem to set any new search =
paths -R]]
::::::: contents of shark2.c :::::::
/* This souce code written my Michael Rolig (email: =
michael_rolig@alumni.macalester.edu)
* This can be considered to be in the public domain
*/
/* Modified for Radio Shark2 2007-05-11
* This souce code written my Hisaaki Shibata (email: shibata@luky.org)
* This can be considered to be in the public domain
*/
#define DEBUG false /* Set true for copious debugging output =
*/
#define SHARK_VENDID 0x077d /* Griffin's Vendor ID */
#define SHARK_DEVID 0x627a /* The radioSHARK's Device ID */
#define READ_EP 0x5 /* libhid read command? */
#define WRITE_EP 0x5 /* libhid write command? */
#define SEND_PACKET_LENGTH 7 /* size of an instruction packet: =
shark2=3D7 */
#include </usr/include/stdio.h>
#include </usr/include/string.h>
#include </usr/include/unistd.h>
#include </usr/include/hid.h>
void usage(int argc, const char** argv) {
printf("%s <command> <arg>\n\tchange state of radioSHARK\n\n", =
argv[0]);
printf("commands:\n"
" -fm <freqeuncy> : set FM frequency, e.g. '-fm =
91.5'\n"
" -am <frequency> : set AM frequency, e.g. '-am =
730'\n"
" -blue <intensity> : turn on blue LED (0-127) '-blue =
127'\n"
" -red <0/1> : turn on/off red LED '-red 1'\n");
}
int main(int argc, const char** argv) {
/* Declare variables used later */
hid_return ret;
HIDInterface* hid;
HIDInterfaceMatcher matcher =3D { SHARK_VENDID, SHARK_DEVID, =
NULL, NULL, 0 };
/* Build the instruction packet to send to the shark */
unsigned char PACKET[SEND_PACKET_LENGTH] =3D { 0x00, 0x00, 0x00, =
0x00, 0x00, 0x00, 0x00 };
unsigned short encodedFreq;
float freq;
unsigned int intensity;
if (argc =3D=3D 3) {
if (strcmp(argv[1], "-fm") =3D=3D 0) {
/* Tune to an FM frequency */
PACKET[0] =3D 0x81;
encodedFreq =3D 0;
freq =3D atof(argv[2]);
encodedFreq =3D ((freq * 10 * 2) - 3 );
PACKET[1] =3D (encodedFreq >> 8) & 0xFF;
PACKET[2] =3D encodedFreq & 0xFF;
PACKET[3] =3D 0x33;
PACKET[4] =3D 0x04;
PACKET[5] =3D 0x00;
PACKET[6] =3D 0x28;
if (DEBUG) {
printf("band =3D fm\n");
printf("freq =3D %.1f\n", freq);
printf("encoded freq =3D 0x%x\n", =
(unsigned int)encodedFreq);
}
} else if (strcmp(argv[1], "-am") =3D=3D 0) {
/* Tune to an AM frequency */
PACKET[0] =3D 0x81;
encodedFreq =3D 0;
freq =3D (float)atoi(argv[2]);
encodedFreq =3D ((unsigned short)freq * 4 ) + =
16300;
PACKET[1] =3D (encodedFreq >> 8) & 0xFF;
PACKET[2] =3D encodedFreq & 0xFF;
PACKET[3] =3D 0xF3;
PACKET[4] =3D 0x36;
PACKET[5] =3D 0x00;
PACKET[6] =3D 0x24;
if (DEBUG) {
printf("band =3D am\n");
printf("freq =3D %d\n", (unsigned =
int)freq);
printf("encoded freq =3D 0x%x\n", =
(unsigned int)encodedFreq);
}
} else if (strcmp(argv[1], "-blue") =3D=3D 0) {
/* Adjust the blue LED */
intensity =3D atoi(argv[2]);
PACKET[0] =3D 0x83;
PACKET[1] =3D (char)intensity;
} else if (strcmp(argv[1], "-bblue") =3D=3D 0) {
/* Adjust the blue LED's pulsing rate */
intensity =3D atoi(argv[2]);
PACKET[0] =3D 0xA1;
PACKET[1] =3D (char)intensity;
} else if (strcmp(argv[1], "-red") =3D=3D 0) {
/* Toggle the red LED */
intensity =3D atoi(argv[2]);
if (intensity) PACKET[0] =3D 0x84;
else PACKET[0] =3D 0x84;
PACKET[1] =3D (char)intensity;
} else {
/* Bad command - display the program's usage =
instructions */
usage(argc, argv);
exit(1);
}
} else {
usage(argc, argv);
exit(1);
}
/* Turn libhid debugging on if requested. See include/debug.h =
for possible values. */
if (DEBUG) {
hid_set_debug(HID_DEBUG_ALL);
hid_set_debug_stream(stderr);
hid_set_usb_debug(0); /* passed =
directly to libusb */
}
/* Initialize the hid library */
ret =3D hid_init();
if (ret !=3D HID_RET_SUCCESS) {
fprintf(stderr, "hid_init failed with return code %d\n", =
ret);
return 1;
}
/* Initialize the hid object */
hid =3D hid_new_HIDInterface();
if (hid =3D=3D 0) {
fprintf(stderr, "hid_new_HIDInterface() failed, out of =
memory?\n");
return 1;
}
/* Open the shark */
ret =3D hid_force_open(hid, 2, &matcher, 3);
if (ret !=3D HID_RET_SUCCESS) {
fprintf(stderr, "hid_force_open failed with return code =
%d\n", ret);
return 1;
}
/* Send the instruction packet constructed above to the Shark */
ret =3D hid_interrupt_write(hid, WRITE_EP, (char*)PACKET, =
SEND_PACKET_LENGTH, 10000);
if (ret !=3D HID_RET_SUCCESS) fprintf(stderr, =
"hid_interrupt_write failed with return code %d\n", ret);
/* Close the shark */
ret =3D hid_close(hid);
if (ret !=3D HID_RET_SUCCESS) {
fprintf(stderr, "hid_close failed with return code %d\n", =
ret);
return 1;
}
/* Delete the hid object */
hid_delete_HIDInterface(&hid);
/* Clean up the hid library */
ret =3D hid_cleanup();
if (ret !=3D HID_RET_SUCCESS) {
fprintf(stderr, "hid_cleanup failed with return code =
%d\n", ret);
return 1;
}
return 0;
}
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