patch-2.1.29 linux/arch/sparc64/prom/k1275d.c

• Lines: 124
• Date: Wed Mar 5 17:04:31 1997
• Orig file: v2.1.28/linux/arch/sparc64/prom/k1275d.c
• Orig date: Sun Jan 26 02:07:10 1997

diff -u --recursive --new-file v2.1.28/linux/arch/sparc64/prom/k1275d.c linux/arch/sparc64/prom/k1275d.c
@@ -1,123 +0,0 @@
-/* $Id: k1275d.c,v 1.2 1997/01/02 14:14:44 jj Exp $
- * k1275d.c: Sun IEEE 1275 PROM kernel daemon
- *
- * Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include <asm/openprom.h>
-#include <asm/oplib.h>
-
-#define p1275sect __attribute__ ((__section__ (".p1275")))
-
-static void (*prom_cif_handler)(long *) p1275sect;
-static long prom_cif_stack;
-static void (*prom_do_it)(void);
-static long prom_args [23] p1275sect;
-static char prom_buffer [4096] p1275sect;
-
-static void prom_doit (void) p1275sect;
-
-static void prom_doit (void)
-{
-	/* FIXME: The PROM stack is grossly misaligned.
-	 * It needs some special way of handling spills/fills.
-	 * Either using %otherwin or doing flushw; wrpr somevalue, %wstate
-	 * should be done here to make difference between PROM stack
-	 * saving (32bit, misaligned stack) and kernel fill/spill).
-	 */
-	__asm__ __volatile__ ("
-	save	%%sp, -0xc0, %%sp;
-	mov	%%sp, %%l1;
-	mov	%0, %%sp;
-	call	%1;
-	 mov	%0, %%o0;
-	mov	%%l1, %%sp;
-	restore;
-	" : : "r" (prom_cif_stack), "r" (prom_cif_handler));
-}
-
-long prom_handle_command(char *service, long fmt, ...)
-{
-	char *p = prom_buffer;
-	unsigned long flags;
-	int nargs, nrets, i;
-	va_list list;
-	long attrs, x;
-	
-	save_and_cli(flags);
-	prom_args[0] = p;				/* service */
-	strcpy (p, function);
-	p = strchr (p, 0) + 1;
-	prom_args[1] = nargs = (fmt & 0x0f);		/* nargs */
-	prom_args[2] = nrets = ((fmt & 0xf0) >> 4); 	/* nrets */
-	attrs = (fmt & (~0xff));
-	va_start(list, fmt);
-	for (i = 0; i < nargs; i++, attrs >>= 3) {
-		switch (attrs & 0x7) {
-		case P1275_ARG_NUMBER:
-			prom_args[i + 3] = va_arg(list, long); break;
-		case P1275_ARG_IN_STRING:
-			strcpy (p, va_arg(list, char *));
-			prom_args[i + 3] = p;
-			p = strchr (p, 0) + 1;
-			break;
-		case P1275_ARG_OUT_BUF:
-			va_arg(list, char *);
-			prom_args[i + 3] = p;
-			x = va_arg(list, long);
-			i++; attrs >>= 3;
-			p += (int)x;
-			prom_args[i + 3] = x;
-			break;
-		case P1275_ARG_OUT_32B:
-			va_arg(list, char *);
-			prom_args[i + 3] = p;
-			p += 32;
-			break;
-		case P1275_ARG_IN_FUNCTION:
-			/* FIXME: This should make a function in our <4G
-			 * section, which will call the argument,
-			 * so that PROM can call it.
-			 */
-			prom_args[i + 3] = va_arg(list, long); break;
-		}
-	}
-	va_end(list);
-	(*prom_do_it)();
-	attrs = fmt & (~0xff);
-	va_start(list, fmt);
-	for (i = 0; i < nargs; i++, attrs >>= 3) {
-		switch (attrs & 0x7) {
-		case P1275_ARG_NUMBER:
-		case P1275_ARG_IN_STRING:
-		case P1275_ARG_IN_FUNCTION:
-			break;
-		case P1275_ARG_OUT_BUF:
-			p = va_arg(list, char *);
-			x = va_arg(list, long);
-			memcpy (p, (char *)prom_args[i + 3], (int)x);
-			i++; attrs >>= 3;
-			break;
-		case P1275_ARG_OUT_32B:
-			p = va_arg(list, char *);
-			memcpy (p, (char *)prom_args[i + 3], 32);
-			break;
-		}
-	}
-	va_end(list);
-	x = prom_args [nargs + 3];
-	restore_flags(flags);
-	return x;
-}
-
-void prom_cif_init(void *cif_handler, void *cif_stack)
-{
-	prom_cif_handler = (void (*)(long *))cif_handler;
-	prom_cif_stack = cif_stack;
-	prom_command = prom_handle_command;
-        prom_do_it = prom_doit;
-}