/* $NetBSD: map_vme.c,v 1.1.1.1 2000/03/29 12:38:52 simonb Exp $ */ /********************************************************/ /* map_vme.c */ /* VME control of TrueTime VME-SG sync gen card */ /* and TrueTime GPS-VME receiver card */ /* Version for 700 series HPUX 9.0 */ /* Richard E.Schmidt, US Naval Observatory, Washington */ /* 27 March 94 */ /********************************************************/ #ifdef HAVE_CONFIG_H # include #endif #if defined(REFCLOCK) && defined(CLOCK_GPSVME) #include #include #include #include #include #include #include #include #include #include #include /* for rtprio */ #include /* for plock */ #include "/etc/conf/machine/vme2.h" #include "/etc/conf/h/io.h" #include "gps.h" /* GLOBALS */ void *gps_base; unsigned short *greg[NREGS]; struct vme2_map_addr ma; /* memory mapped structure */ int fd; /* file descriptor for VME */ void unmap_vme (); caddr_t map_vme ( char *filename ) { int ret; caddr_t base; struct vme2_io_testx tx; caddr_t cp; #define VME_START_ADDR 0x00000 /* Starting address in A16N VME Space */ #define VMESIZE 0xFF /* 256 bytes of A16N space length */ /* To create the HP9000/700 series device file, /dev/vme2: mknod /dev/vme2 c 44 0x0; chmod 600 /dev/vme2 Then must create /etc/vme.CFG and run /etc/vme_config and reboot. */ if ((fd = open (filename, O_RDWR)) < 0) { printf("ERROR: VME bus adapter open failed. errno:%d\n", errno); if(errno == ENODEV) { printf("ENODEV. Is driver in kernel? vme2 in dfile?\n"); } exit(errno); } tx.card_type = VME_A16; tx.vme_addr = VME_START_ADDR; tx.width = SHORT_WIDE; if(ioctl(fd, VME2_IO_TESTR, &tx)) { printf("ioctl to test VME space failed. Errno: %d\n", errno); exit(errno); } if(tx.error) printf("io_testr failed internal error %d\n",tx.error); if(tx.access_result < 0) { printf("io_testr failed\n"); exit(2); } /* If successful mmap the device */ /* NOW MAP THE CARD */ ma.card_type = VME_A16; ma.vme_addr = VME_START_ADDR; ma.size = VMESIZE; if(ioctl(fd, VME2_MAP_ADDR, &ma)) { printf("ioctl to map VME space failed. Errno: %d\n", errno); exit(errno); } if(ma.error) { printf("ioctl to map VME failed\n"); exit(ENOMEM); } base = ma.user_addr; return(base); } void unmap_vme(void) { if(ioctl(fd, VME2_UNMAP_ADDR, &ma)) printf("ioctl to unmap VME space failed. Errno: %d\n", errno); close(fd); return; } int init_vme(boid) { /* set up address offsets */ gps_base = map_vme (GPS_VME); /* offsets from base address: */ greg[0] = (unsigned short *)gps_base + GFRZ1; greg[1] = (unsigned short *)gps_base + GUFRZ1; greg[2] = (unsigned short *)gps_base + GREG1A; greg[3] = (unsigned short *)gps_base + GREG1B; greg[4] = (unsigned short *)gps_base + GREG1C; greg[5] = (unsigned short *)gps_base + GREG1D; greg[6] = (unsigned short *)gps_base + GREG1E; return (0); } #else /* not (REFCLOCK && CLOCK_GPSVME) */ int map_vme_bs; #endif /* not (REFCLOCK && CLOCK_GPSVME) */