Mercurial > ~darius > hgwebdir.cgi > avr
diff testugen2.c @ 27:d5a265299a4b
Test programs to talk to the hardware from a PC
author | darius |
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date | Mon, 10 Apr 2006 17:22:17 +0930 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/testugen2.c Mon Apr 10 17:22:17 2006 +0930 @@ -0,0 +1,159 @@ +#include <sys/types.h> +#include <sys/ioctl.h> +#include <dev/usb/usb.h> +#include <sys/errno.h> +#include <sys/uio.h> +#include <unistd.h> +#include <fcntl.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + +/* Return codes for OWFirst()/OWNext() */ +#define OW_BADWIRE -3 +#define OW_BADCRC -2 +#define OW_NOPRESENCE -1 +#define OW_NOMODULES 0 +#define OW_FOUND 1 + +void docmd(int fd, uint8_t *buffer, int rlen, int wlen); + +int +main(int argc, char **argv) { + int endptfd, i; + char *endptname = "/dev/ugen0.2"; + uint8_t buffer[9]; + + if (argc < 2) { + fprintf(stderr, + "Bad usage:\n" + "\t%s cmd\n", argv[0]); + exit(1); + } + + if ((endptfd = open(endptname, O_RDWR)) == -1) { + fprintf(stderr, "Unable to open %s: %s\n", endptname, strerror(errno)); + exit(1); + } + + i = 1; + if (ioctl(endptfd, USB_SET_SHORT_XFER, &i) == -1) { + fprintf(stderr, "Unable to set short xfer on end point 1: %s\n", strerror(errno)); + exit(1); + } + + bzero(buffer, 9); + + if (!strcmp(argv[1], "reset")) { + buffer[0] = 0x00; + docmd(endptfd, buffer, 1, 1); + printf("OWTouchReset() reported %d\n", buffer[0]); + } else if (!strcmp(argv[1], "first")) { + buffer[0] = 0x01; + docmd(endptfd, buffer, 1, 9); + printf("OWFirst() = %d\n", buffer[0]); + if (buffer[0] == OW_FOUND) + printf("Found module %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", + buffer[1], buffer[2], buffer[3], buffer[4], + buffer[5], buffer[6], buffer[7], buffer[8]); + } else if (!strcmp(argv[1], "next")) { + if (scanf(argv[2], "%hh:%hh:%hh:%hh:%hh:%hh:%hh:%hh", &buffer[1], &buffer[2], &buffer[3], + &buffer[4], &buffer[5], &buffer[6], &buffer[7], &buffer[8]) != 8) { + fprintf(stderr, "Unable to parse ROM ID\n"); + exit(1); + } + buffer[0] = 0x02; + fprintf(stderr, "About to OWNext()\n"); + docmd(endptfd, buffer, 9, 9); + fprintf(stderr, "OWNext() = %d\n", buffer[0]); + if (buffer[0] == OW_FOUND) + printf("Found module %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", + buffer[1], buffer[2], buffer[3], buffer[4], + buffer[5], buffer[6], buffer[7], buffer[8]); + + } else if (!strcmp(argv[1], "scan")) { + buffer[0] = 0x00; + fprintf(stderr, "About to reset\n"); + docmd(endptfd, buffer, 1, 1); + printf("OWReset() reported %d\n", buffer[0]); + if (buffer[0] != 0) + exit(1); + + bzero(buffer, 9); + buffer[0] = 0x01; + fprintf(stderr, "About to OWFirst()\n"); + docmd(endptfd, buffer, 1, 9); + printf("OWFirst() = %d\n", buffer[0]); + + do { + switch (buffer[0]) { + case OW_BADWIRE: + printf("Bad wiring, either bus is held low, or a presence pulse was detected but no module found\n"); + break; + + case OW_NOPRESENCE: + printf("No presence pulse detected\n"); + break; + + case OW_BADCRC: + printf("Bad CRC\n"); + break; + + case OW_NOMODULES: + case OW_FOUND: + break; + + default: + printf("Unknown return code %d\n", buffer[0]); + break; + } + + if (buffer[0] != OW_FOUND) { + printf("No more modules\n"); + break; + } else { + printf("Found module %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", + buffer[1], buffer[2], buffer[3], buffer[4], + buffer[5], buffer[6], buffer[7], buffer[8]); + } + + buffer[0] = 0x02; + fprintf(stderr, "About to OWNext()\n"); + docmd(endptfd, buffer, 9, 9); + } while(1); + } else { + printf("Unknown command: %s\n", argv[1]); + exit(1); + } + + + exit(0); +} + +void +docmd(int fd, uint8_t *buffer, int wlen, int rlen) { + char blah[20]; + int i; + + fprintf(stderr, "About to write\n"); + gets(blah); + + if ((i = write(fd, buffer, wlen)) == -1) { + fprintf(stderr, "Unable to write end point: %s\n", strerror(errno)); + exit(1); + } + if (i != wlen) + printf("Warning, only wrote %d of %d bytes\n", i, wlen); + + fprintf(stderr, "About to read\n"); + gets(blah); + + if ((i = read(fd, buffer, rlen)) == -1) { + fprintf(stderr, "Unable to read from end point: %s\n", strerror(errno)); + exit(1); + } + if (i != rlen) + printf("Warning, only read %d of %d bytes\n", i, wlen); +} + +