patch-2.4.5 linux/arch/ppc/coffboot/start.c
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- Lines: 322
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.4/linux/arch/ppc/coffboot/start.c
- Orig date:
Thu Dec 2 14:37:34 1999
diff -u --recursive --new-file v2.4.4/linux/arch/ppc/coffboot/start.c linux/arch/ppc/coffboot/start.c
@@ -1,321 +0,0 @@
-/*
- * Copyright (C) Paul Mackerras 1997.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <stdarg.h>
-
-int (*prom)();
-
-void *chosen_handle;
-void *stdin;
-void *stdout;
-void *stderr;
-
-void exit(void);
-void *finddevice(const char *name);
-int getprop(void *phandle, const char *name, void *buf, int buflen);
-void printk(char *fmt, ...);
-
-void
-start(int a1, int a2, void *promptr)
-{
- prom = (int (*)()) promptr;
- chosen_handle = finddevice("/chosen");
- if (chosen_handle == (void *) -1)
- exit();
- if (getprop(chosen_handle, "stdout", &stdout, sizeof(stdout)) != 4)
- exit();
- stderr = stdout;
- if (getprop(chosen_handle, "stdin", &stdin, sizeof(stdin)) != 4)
- exit();
-
- boot(a1, a2, promptr);
- for (;;)
- exit();
-}
-
-int
-write(void *handle, void *ptr, int nb)
-{
- struct prom_args {
- char *service;
- int nargs;
- int nret;
- void *ihandle;
- void *addr;
- int len;
- int actual;
- } args;
-
- args.service = "write";
- args.nargs = 3;
- args.nret = 1;
- args.ihandle = handle;
- args.addr = ptr;
- args.len = nb;
- args.actual = -1;
- (*prom)(&args);
- return args.actual;
-}
-
-int writestring(void *f, char *ptr, int nb)
-{
- int w = 0, i;
- char *ret = "\r";
-
- for (i = 0; i < nb; ++i) {
- if (ptr[i] == '\n') {
- if (i > w) {
- write(f, ptr + w, i - w);
- w = i;
- }
- write(f, ret, 1);
- }
- }
- if (w < nb)
- write(f, ptr + w, nb - w);
- return nb;
-}
-
-int
-read(void *handle, void *ptr, int nb)
-{
- struct prom_args {
- char *service;
- int nargs;
- int nret;
- void *ihandle;
- void *addr;
- int len;
- int actual;
- } args;
-
- args.service = "read";
- args.nargs = 3;
- args.nret = 1;
- args.ihandle = handle;
- args.addr = ptr;
- args.len = nb;
- args.actual = -1;
- (*prom)(&args);
- return args.actual;
-}
-
-void
-exit()
-{
- struct prom_args {
- char *service;
- } args;
-
- for (;;) {
- args.service = "exit";
- (*prom)(&args);
- }
-}
-
-void
-pause()
-{
- struct prom_args {
- char *service;
- } args;
-
- args.service = "enter";
- (*prom)(&args);
-}
-
-void *
-finddevice(const char *name)
-{
- struct prom_args {
- char *service;
- int nargs;
- int nret;
- const char *devspec;
- void *phandle;
- } args;
-
- args.service = "finddevice";
- args.nargs = 1;
- args.nret = 1;
- args.devspec = name;
- args.phandle = (void *) -1;
- (*prom)(&args);
- return args.phandle;
-}
-
-void *
-claim(unsigned int virt, unsigned int size, unsigned int align)
-{
- struct prom_args {
- char *service;
- int nargs;
- int nret;
- unsigned int virt;
- unsigned int size;
- unsigned int align;
- void *ret;
- } args;
-
- args.service = "claim";
- args.nargs = 3;
- args.nret = 1;
- args.virt = virt;
- args.size = size;
- args.align = align;
- (*prom)(&args);
- return args.ret;
-}
-
-int
-getprop(void *phandle, const char *name, void *buf, int buflen)
-{
- struct prom_args {
- char *service;
- int nargs;
- int nret;
- void *phandle;
- const char *name;
- void *buf;
- int buflen;
- int size;
- } args;
-
- args.service = "getprop";
- args.nargs = 4;
- args.nret = 1;
- args.phandle = phandle;
- args.name = name;
- args.buf = buf;
- args.buflen = buflen;
- args.size = -1;
- (*prom)(&args);
- return args.size;
-}
-
-int
-putc(int c, void *f)
-{
- char ch = c;
-
- return writestring(f, &ch, 1) == 1? c: -1;
-}
-
-int
-putchar(int c)
-{
- return putc(c, stdout);
-}
-
-int
-fputs(char *str, void *f)
-{
- int n = strlen(str);
-
- return writestring(f, str, n) == n? 0: -1;
-}
-
-int
-readchar()
-{
- char ch;
-
- for (;;) {
- switch (read(stdin, &ch, 1)) {
- case 1:
- return ch;
- case -1:
- printk("read(stdin) returned -1\n");
- return -1;
- }
- }
-}
-
-static char line[256];
-static char *lineptr;
-static int lineleft;
-
-int
-getchar()
-{
- int c;
-
- if (lineleft == 0) {
- lineptr = line;
- for (;;) {
- c = readchar();
- if (c == -1 || c == 4)
- break;
- if (c == '\r' || c == '\n') {
- *lineptr++ = '\n';
- putchar('\n');
- break;
- }
- switch (c) {
- case 0177:
- case '\b':
- if (lineptr > line) {
- putchar('\b');
- putchar(' ');
- putchar('\b');
- --lineptr;
- }
- break;
- case 'U' & 0x1F:
- while (lineptr > line) {
- putchar('\b');
- putchar(' ');
- putchar('\b');
- --lineptr;
- }
- break;
- default:
- if (lineptr >= &line[sizeof(line) - 1])
- putchar('\a');
- else {
- putchar(c);
- *lineptr++ = c;
- }
- }
- }
- lineleft = lineptr - line;
- lineptr = line;
- }
- if (lineleft == 0)
- return -1;
- --lineleft;
- return *lineptr++;
-}
-
-extern int vsprintf(char *buf, const char *fmt, va_list args);
-static char sprint_buf[1024];
-
-void
-printk(char *fmt, ...)
-{
- va_list args;
- int n;
-
- va_start(args, fmt);
- n = vsprintf(sprint_buf, fmt, args);
- va_end(args);
- writestring(stdout, sprint_buf, n);
-}
-
-int
-printf(char *fmt, ...)
-{
- va_list args;
- int n;
-
- va_start(args, fmt);
- n = vsprintf(sprint_buf, fmt, args);
- va_end(args);
- writestring(stdout, sprint_buf, n);
- return n;
-}
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