API for external applications.

This is an API for external (standalone) applications running on top of
U-Boot, and is meant to be more extensible and robust than the existing
jumptable mechanism. It is similar to UNIX syscall approach. See api/README
for more details.

Included is the demo application using this new framework (api_examples).

Please note this is still an experimental feature, and is turned off by
default.

Signed-off-by: Rafal Jaworowski <raj@semihalf.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/api_examples/libgenwrap.c b/api_examples/libgenwrap.c
new file mode 100644
index 000000000..df62633ca
--- /dev/null
+++ b/api_examples/libgenwrap.c
@@ -0,0 +1,90 @@
+/*
+ * (C) Copyright 2007 Semihalf
+ *
+ * Written by: Rafal Jaworowski <raj@semihalf.com>
+ *
+ * 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
+ *
+ *
+ * This is is a set of wrappers/stubs that allow to use certain routines from
+ * U-Boot's lib_generic in the standalone app. This way way we can re-use
+ * existing code e.g. operations on strings and similar.
+ *
+ */
+
+#include <common.h>
+#include <linux/types.h>
+#include <api_public.h>
+
+#include "glue.h"
+
+/*
+ * printf() and vprintf() are stolen from u-boot/common/console.c
+ */
+void printf (const char *fmt, ...)
+{
+	va_list args;
+	uint i;
+	char printbuffer[256];
+
+	va_start (args, fmt);
+
+	/* For this to work, printbuffer must be larger than
+	 * anything we ever want to print.
+	 */
+	i = vsprintf (printbuffer, fmt, args);
+	va_end (args);
+
+	/* Print the string */
+	ub_puts (printbuffer);
+}
+
+void vprintf (const char *fmt, va_list args)
+{
+	uint i;
+	char printbuffer[256];
+
+	/* For this to work, printbuffer must be larger than
+	 * anything we ever want to print.
+	 */
+	i = vsprintf (printbuffer, fmt, args);
+
+	/* Print the string */
+	ub_puts (printbuffer);
+}
+
+void putc (const char c)
+{
+	ub_putc(c);
+}
+
+void udelay(unsigned long usec)
+{
+	ub_udelay(usec);
+}
+
+void do_reset (void)
+{
+	ub_reset();
+}
+
+void *malloc(size_t len)
+{
+	return NULL;
+}