X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=common%2Fcmd_itest.c;h=91ae5c2704c882be8d4457d67d5f8488b19d2f1c;hb=3c8dcf0eacda531724ed83af0f54ffb4b98bc799;hp=309b08bb03a5121adae34dfd825c16e1c772c4ab;hpb=156feb90d200f186cdfd856d7f6f1878bb1bec1e;p=oweals%2Fu-boot.git

diff --git a/common/cmd_itest.c b/common/cmd_itest.c
index 309b08bb03..91ae5c2704 100644
--- a/common/cmd_itest.c
+++ b/common/cmd_itest.c
@@ -2,23 +2,7 @@
  * (C) Copyright 2003
  * Tait Electronics Limited, Christchurch, New Zealand
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
@@ -31,6 +15,9 @@
 #include <common.h>
 #include <config.h>
 #include <command.h>
+#include <mapmem.h>
+
+#include <asm/io.h>
 
 #define EQ	0
 #define NE	1
@@ -46,7 +33,7 @@ struct op_tbl_s {
 
 typedef struct op_tbl_s op_tbl_t;
 
-op_tbl_t op_table [] = {
+static const op_tbl_t op_table [] = {
 	{ "-lt", LT },
 	{ "<"  , LT },
 	{ "-gt", GT },
@@ -62,21 +49,38 @@ op_tbl_t op_table [] = {
 	{ "<=" , LE },
 };
 
-#define op_tbl_size (sizeof(op_table)/sizeof(op_table[0]))
-
 static long evalexp(char *s, int w)
 {
-	long l, *p;
+	long l = 0;
+	unsigned long addr;
+	void *buf;
 
 	/* if the parameter starts with a * then assume is a pointer to the value we want */
 	if (s[0] == '*') {
-		p = (long *)simple_strtoul(&s[1], NULL, 16);
-		l = *p;
+		addr = simple_strtoul(&s[1], NULL, 16);
+		buf = map_physmem(addr, w, MAP_WRBACK);
+		if (!buf) {
+			puts("Failed to map physical memory\n");
+			return 0;
+		}
+		switch (w) {
+		case 1:
+			l = (long)(*(unsigned char *)buf);
+			break;
+		case 2:
+			l = (long)(*(unsigned short *)buf);
+			break;
+		case 4:
+			l = (long)(*(unsigned long *)buf);
+			break;
+		}
+		unmap_physmem(buf, w);
+		return l;
 	} else {
 		l = simple_strtoul(s, NULL, 16);
 	}
 
-	return (l & ((1 << (w * 8)) - 1));
+	return l & ((1UL << (w * 8)) - 1);
 }
 
 static char * evalstr(char *s)
@@ -84,6 +88,19 @@ static char * evalstr(char *s)
 	/* if the parameter starts with a * then assume a string pointer else its a literal */
 	if (s[0] == '*') {
 		return (char *)simple_strtoul(&s[1], NULL, 16);
+	} else if (s[0] == '$') {
+		int i = 2;
+
+		if (s[1] != '{')
+			return NULL;
+
+		while (s[i] != '}') {
+			if (s[i] == 0)
+				return NULL;
+			i++;
+		}
+		s[i] = 0;
+		return  getenv((const char *)&s[2]);
 	} else {
 		return s;
 	}
@@ -91,16 +108,13 @@ static char * evalstr(char *s)
 
 static int stringcomp(char *s, char *t, int op)
 {
-	int n, p;
+	int p;
 	char *l, *r;
 
 	l = evalstr(s);
 	r = evalstr(t);
 
-	/* we'll do a compare based on the length of the shortest string */
-	n = min(strlen(l), strlen(r));
-
-	p = strncmp(l, r, n);
+	p = strcmp(l, r);
 	switch (op) {
 	case EQ: return (p == 0);
 	case NE: return (p != 0);
@@ -130,15 +144,15 @@ static int arithcomp (char *s, char *t, int op, int w)
 	return (0);
 }
 
-int binary_test (char *op, char *arg1, char *arg2, int w)
+static int binary_test(char *op, char *arg1, char *arg2, int w)
 {
 	int len, i;
-	op_tbl_t *optp;
+	const op_tbl_t *optp;
 
 	len = strlen(op);
 
 	for (optp = (op_tbl_t *)&op_table, i = 0;
-	     i < op_tbl_size;
+	     i < ARRAY_SIZE(op_table);
 	     optp++, i++) {
 
 		if ((strncmp (op, optp->op, len) == 0) && (len == strlen (optp->op))) {
@@ -155,15 +169,13 @@ int binary_test (char *op, char *arg1, char *arg2, int w)
 }
 
 /* command line interface to the shell test */
-int do_itest ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+static int do_itest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int	value, w;
 
 	/* Validate arguments */
-	if ((argc != 4)){
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if ((argc != 4))
+		return CMD_RET_USAGE;
 
 	/* Check for a data width specification.
 	 * Defaults to long (4) if no specification.
@@ -191,5 +203,5 @@ int do_itest ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
 U_BOOT_CMD(
 	itest, 4, 0, do_itest,
 	"return true/false on integer compare",
-	"[.b, .w, .l, .s] [*]value1 <op> [*]value2\n"
+	"[.b, .w, .l, .s] [*]value1 <op> [*]value2"
 );