diff options
Diffstat (limited to 'libgloss/hp74x/io.c')
| -rw-r--r-- | libgloss/hp74x/io.c | 338 |
1 files changed, 0 insertions, 338 deletions
diff --git a/libgloss/hp74x/io.c b/libgloss/hp74x/io.c deleted file mode 100644 index 054d90ce4..000000000 --- a/libgloss/hp74x/io.c +++ /dev/null @@ -1,338 +0,0 @@ -/* - * io.c -- all the code to make GCC and the libraries run on - * a bare target board. - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <errno.h> - -#include "hppa-defs.h" - -extern char *_end; /* _end is set in the linker command file */ - -/* just in case, most boards have at least some memory */ -#ifndef RAMSIZE -# define RAMSIZE (char *)0x100000 -#endif - -int -print(ptr) -char *ptr; -{ - while (*ptr) - outbyte (*ptr++); -} - -int -putnum (Num) -unsigned int Num; -{ - char Buffer[9]; - int Count; - char *BufPtr = Buffer; - int Digit; - - for (Count = 7 ; Count >= 0 ; Count--) { - Digit = (Num >> (Count * 4)) & 0xf; - - if (Digit <= 9) - *BufPtr++ = (char) ('0' + Digit); - else - *BufPtr++ = (char) ('a' - 10 + Digit); - } - - *BufPtr = (char) 0; - print (Buffer); - return; -} - -int -delay (x) - int x; -{ - int y = 17; - while (x-- !=0) - y = y^2; -} - -/* - * strobe -- do a zylons thing, toggling each led in sequence forever... - */ -int -zylons() -{ - while (1) { - strobe(); - } -} - -/* - * strobe -- toggle each led in sequence up and back once. - */ -int -strobe() -{ - static unsigned char curled = 1; - static unsigned char dir = 0; - - curled = 1; - dir = 0; - while (curled != 0) { - led_putnum (curled); - delay (70000); - if (dir) - curled >>= 1; - else - curled <<= 1; - - if (curled == 128) { - dir = ~dir; - } - } - curled = 1; - dir = 0; -} - -/* - * iodc_io_call -- this makes a call into the IODC routine - */ -int -iodc_io_call(ep_address,arg0,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11) -int ep_address, arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11; -{ - int (*iodc_entry_point)(); - - iodc_entry_point = (int (*)())ep_address; - - return ((*iodc_entry_point)(arg0,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11)); -} - -/* - * pdc_call -- this makes a call into the PDC routine - */ -int -pdc_call(arg0,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11) - int arg0, arg1, arg2, arg3, arg4, arg5; - int arg6, arg7, arg9, arg10, arg11; -{ - return ( CALL_PDC(arg0,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11)); -} - -/* - * put_led -- put a bit pattern on the LED's. - */ -int -led_putnum (byte) - unsigned short byte; -{ - return (pdc_call(OPT_PDC_CHASSIS,0,byte)); -} - - -/* - * outbyte -- shove a byte out the serial port - */ -int -outbyte(byte) - unsigned char byte; -{ - int status; - int R_addr[32]; - struct _dev *console = (struct _dev *)PGZ_CONSOLE_STRUCT; - - status = iodc_io_call(console->iodc_io, console->hpa, IO_CONSOLE_OUTPUT, console->spa, - console->layer[0], R_addr, 0, &byte, 1, 0); - - switch(status) - { - case 0: return(1); - default: return (-1); - } -} - -/* - * inbyte -- get a byte from the serial port - */ -unsigned char -inbyte() -{ - int status; - int R_addr[32]; - char inbuf; - struct _dev *console = (struct _dev *)PGZ_CONSOLE_STRUCT; - - while (status == 0) { - status = iodc_io_call(console->iodc_io, console->hpa, IO_CONSOLE_INPUT, console->spa, - console->layer[0], R_addr, 0, &inbuf, 1, 0); - - switch (status) { - case 0: - case 2: /* recoverable error */ - if (R_addr[0] != 0) { /* found a character */ - return(inbuf); - } - else - break; /* error, no character */ - default: /* error, no character */ - return(0); - } - } -} - -/* - * read -- read bytes from the serial port. Ignore fd, since - * we only have stdin. - */ -int -read(fd, buf, nbytes) - int fd; - char *buf; - int nbytes; -{ - int i = 0; - - for (i = 0; i < nbytes; i++) { - *(buf + i) = inbyte(); - if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) { - (*(buf + i)) = 0; - break; - } - } - return (i); -} - -/* - * write -- write bytes to the serial port. Ignore fd, since - * stdout and stderr are the same. Since we have no filesystem, - * open will only return an error. - */ -int -write(fd, buf, nbytes) - int fd; - char *buf; - int nbytes; -{ - int i; - - for (i = 0; i < nbytes; i++) { - if (*(buf + i) == '\n') { - outbyte ('\r'); - } - outbyte (*(buf + i)); - } - return (nbytes); -} - -/* - * open -- open a file descriptor. We don't have a filesystem, so - * we return an error. - */ -int -open(buf, flags, mode) - char *buf; - int flags; - int mode; -{ - errno = EIO; - return (-1); -} - -/* - * close -- close a file descriptor. We don't need - * to do anything, but pretend we did. - */ -int -close(fd) - int fd; -{ - return (0); -} - -/* - * sbrk -- changes heap size size. Get nbytes more - * RAM. We just increment a pointer in what's - * left of memory on the board. - */ -char * -sbrk(nbytes) - int nbytes; -{ - static char * heap_ptr = NULL; - char * base; - - if (heap_ptr == NULL) { - heap_ptr = (char *)&_end; - } - - if ((RAMSIZE - heap_ptr) >= 0) { - base = heap_ptr; - heap_ptr += nbytes; - return (heap_ptr); - } else { - errno = ENOMEM; - return ((char *)-1); - } -} - -/* - * isatty -- returns 1 if connected to a terminal device, - * returns 0 if not. Since we're hooked up to a - * serial port, we'll say yes return a 1. - */ -int -isatty(fd) - int fd; -{ - return (1); -} - -/* - * lseek -- move read/write pointer. Since a serial port - * is non-seekable, we return an error. - */ -off_t -lseek(fd, offset, whence) - int fd; - off_t offset; - int whence; -{ - errno = ESPIPE; - return ((off_t)-1); -} - -/* - * fstat -- get status of a file. Since we have no file - * system, we just return an error. - */ -int -fstat(fd, buf) - int fd; - struct stat *buf; -{ - errno = EIO; - return (-1); -} - -/* - * getpid -- only one process, so just return 1. - */ -#define __MYPID 1 -int -getpid() -{ - return __MYPID; -} - -/* - * kill -- assume mvme.S, and go out via exit... - */ -int -kill(pid, sig) - int pid; - int sig; -{ - if(pid == __MYPID) - _exit(sig); - return 0; -} |