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Diffstat (limited to 'sys/alpha/include/prom.h')
| -rw-r--r-- | sys/alpha/include/prom.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/sys/alpha/include/prom.h b/sys/alpha/include/prom.h new file mode 100644 index 0000000..84f5f9c --- /dev/null +++ b/sys/alpha/include/prom.h @@ -0,0 +1,104 @@ +/* $NetBSD: prom.h,v 1.7 1997/04/06 08:47:37 cgd Exp $ */ + +/* + * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Keith Bostic, Chris G. Demetriou + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +#ifndef ASSEMBLER +struct prom_vec { + u_int64_t routine; + void *routine_arg; +}; + +/* The return value from a prom call. */ +typedef union { + struct { + u_int64_t + retval : 32, /* return value. */ + unit : 8, + mbz : 8, + error : 13, + status : 3; + } u; + u_int64_t bits; +} prom_return_t; + +#ifdef STANDALONE +int getchar __P((void)); +int prom_open __P((char *, int)); +void putchar __P((int)); +#endif + +void prom_halt __P((int)) __attribute__((__noreturn__)); +int prom_getenv __P((int, char *, int)); + +#endif + +/* Prom operation values. */ +#define PROM_R_CLOSE 0x11 +#define PROM_R_GETC 0x01 +#define PROM_R_GETENV 0x22 +#define PROM_R_OPEN 0x10 +#define PROM_R_PUTS 0x02 +#define PROM_R_READ 0x13 +#define PROM_R_WRITE 0x14 + +/* Environment variable values. */ +#define PROM_E_BOOTED_DEV 0x4 +#define PROM_E_BOOTED_FILE 0x6 +#define PROM_E_BOOTED_OSFLAGS 0x8 +#define PROM_E_TTY_DEV 0xf + +/* + * There have to be stub routines to do the copying that ensures that the + * PROM doesn't get called with an address larger than 32 bits. Calls that + * either don't need to copy anything, or don't need the copy because it's + * already being done elsewhere, are defined here. + */ +#define prom_close(chan) \ + prom_dispatch(PROM_R_CLOSE, chan, 0, 0, 0) +#define prom_read(chan, len, buf, blkno) \ + prom_dispatch(PROM_R_READ, chan, len, (u_int64_t)buf, blkno) +#define prom_write(chan, len, buf, blkno) \ + prom_dispatch(PROM_R_WRITE, chan, len, (u_int64_t)buf, blkno) +#define prom_putstr(chan, str, len) \ + prom_dispatch(PROM_R_PUTS, chan, (u_int64_t)str, len, 0) +#define prom_getc(chan) \ + prom_dispatch(PROM_R_GETC, chan, 0, 0, 0) +#define prom_getenv_disp(id, buf, len) \ + prom_dispatch(PROM_R_GETENV, id, (u_int64_t)buf, len, 0) + +#ifndef ASSEMBLER +#ifdef KERNEL +void promcnputc __P((dev_t, int)); +int promcngetc __P((dev_t)); +int promcnlookc __P((dev_t, char *)); + +u_int64_t prom_dispatch __P((u_int64_t, u_int64_t, u_int64_t, u_int64_t, + u_int64_t)); +void init_bootstrap_console __P((void)); +#endif /* _KERNEL */ +#endif /* ASSEMBLER */ |
