diff options
Diffstat (limited to 'contrib/ntp/ntpd/map_vme.c')
| -rw-r--r-- | contrib/ntp/ntpd/map_vme.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/contrib/ntp/ntpd/map_vme.c b/contrib/ntp/ntpd/map_vme.c new file mode 100644 index 0000000..3c161cc --- /dev/null +++ b/contrib/ntp/ntpd/map_vme.c @@ -0,0 +1,135 @@ +/********************************************************/ +/* 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 <config.h> +#endif + +#if defined(REFCLOCK) && defined(CLOCK_GPSVME) +#include <stdio.h> +#include <errno.h> +#include <time.h> +#include <sys/types.h> +#include <fcntl.h> +#include <sys/file.h> +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/sysmacros.h> +#include <sys/rtprio.h> /* for rtprio */ +#include <sys/lock.h> /* 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) */ |
