meta-digi-del: add 'update_flash' application

Signed-off-by: Javier Viguera <javier.viguera@digi.com>

meta-digi-del/recipes-core/packagegroups/packagegroup-del-core.bb

@@ -40,6 +40,7 @@ RDEPENDS_${PN} = "\
     ${VIRTUAL-RUNTIME_init_manager} \
     ${VIRTUAL-RUNTIME_dev_manager} \
     ${VIRTUAL-RUNTIME_update-alternatives} \
+    update-flash \
     usbutils \
     ${MACHINE_ESSENTIAL_EXTRA_RDEPENDS}"
 

meta-digi-del/recipes-digi/update-flash/update-flash.bb

@@ -0,0 +1,25 @@
+SUMMARY = "Digi's update test utility"
+SECTION = "base"
+LICENSE = "GPL-2.0"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6"
+
+PR = "r0"
+
+DEPENDS += "libdigi"
+
+SRC_URI = "file://update_flash.c \
+           file://jffs2-user.h \
+          "
+
+GIT_SHA1 = "$(cd ${THISDIR} && git rev-parse --short HEAD)"
+
+S = "${WORKDIR}"
+
+do_compile() {
+	${CC} -O2 -Wall -DGIT_SHA1=\"${GIT_SHA1}\" update_flash.c -o update_flash -ldigi
+}
+
+do_install() {
+	install -d ${D}${bindir}
+	install -m 0755 update_flash ${D}${bindir}
+}

meta-digi-del/recipes-digi/update-flash/update-flash/jffs2-user.h

@@ -0,0 +1,33 @@
+/*
+ * JFFS2 definitions for use in user space only
+ */
+
+#ifndef __JFFS2_USER_H__
+#define __JFFS2_USER_H__
+
+/* This file is blessed for inclusion by userspace */
+#include <linux/jffs2.h>
+#include <endian.h>
+#include <byteswap.h>
+
+#undef cpu_to_je16
+#undef cpu_to_je32
+#undef cpu_to_jemode
+#undef je16_to_cpu
+#undef je32_to_cpu
+#undef jemode_to_cpu
+
+extern int target_endian;
+
+#define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
+#define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
+
+#define cpu_to_je16(x) ((jint16_t){t16(x)})
+#define cpu_to_je32(x) ((jint32_t){t32(x)})
+#define cpu_to_jemode(x) ((jmode_t){t32(x)})
+
+#define je16_to_cpu(x) (t16((x).v16))
+#define je32_to_cpu(x) (t32((x).v32))
+#define jemode_to_cpu(x) (t32((x).m))
+
+#endif /* __JFFS2_USER_H__ */