init code

Change-Id: Ie6cb5cdbcabca325d23d3a230027d40f67c09644
Signed-off-by: MyoungJune Park <mj2004.park@samsung.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/src/resetCCMode.c b/src/resetCCMode.c
new file mode 100755
index 0000000..2d3e8fe
--- /dev/null
+++ b/src/resetCCMode.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2000 - 2017 Samsung Electronics Co., Ltd.
+ *
+ * Contact: MyoungJune Park <mj2004.park@samsung.com>
+ *   Created by Wonil Choi <wonil22.choi@samsung.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "ccerror.h"
+
+#define PARAM_CC_ENC_RAW_SIZE	64
+#define PARAM_CC_FLAG_OFFSET	0x800
+
+static const char dev_params[]  = {
+	"/dev/disk/by-partlabel/param"
+};
+
+int resetSBFCCM(void)
+{
+	int ret, fd;
+	uint8_t eraw[PARAM_CC_ENC_RAW_SIZE];
+
+	memset(eraw, 0, PARAM_CC_ENC_RAW_SIZE);
+	if ((fd = open(dev_params, O_WRONLY)) == -1) {
+		ret = -CC_ERROR_UTIL_RESETSBFCCM;
+		goto open_fail;
+	}
+
+	if (lseek(fd, -(PARAM_CC_FLAG_OFFSET), SEEK_END) == -1) {
+		ret = -(CC_ERROR_UTIL_RESETSBFCCM + 2);
+		goto out;
+	}
+
+	if (write(fd, eraw, PARAM_CC_ENC_RAW_SIZE) != PARAM_CC_ENC_RAW_SIZE) {
+		ret = -(CC_ERROR_UTIL_RESETSBFCCM + 3);
+		goto out;
+	}
+
+	ret = CC_ERROR_NONE;
+out:
+	close(fd);
+open_fail:
+	return ret;
+}
+
+int main(void)
+{
+	int ret = resetSBFCCM();
+	printf("resetSBFCCM() returns %d\n", ret);
+	return ret;
+}
+