msm: cam: add string log macro in debug header file

Add string log macro to filter logs for some modules when developer
is debugging some specific modules.

CRs-fixed: 2057111
Change-Id: I7fcb39d8cabdfd88250f192daed04cb9cf065d63
Signed-off-by: Junzhe Zou <jnzhezou@codeaurora.org>
diff --git a/drivers/media/platform/msm/camera/cam_utils/cam_debug_util.h b/drivers/media/platform/msm/camera/cam_utils/cam_debug_util.h
new file mode 100644
index 0000000..5989f1a
--- /dev/null
+++ b/drivers/media/platform/msm/camera/cam_utils/cam_debug_util.h
@@ -0,0 +1,57 @@
+/* Copyright (c) 2017, The Linux Foundataion. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#ifndef _CAM_DEBUG_UTIL_H_
+#define _CAM_DEBUG_UTIL_H_
+
+#define DEFAULT     0xFFFF
+#define CAM_CDM    (1 << 0)
+#define CAM_CORE   (1 << 1)
+#define CAM_CPAS   (1 << 2)
+#define CAM_ISP    (1 << 3)
+#define CAM_CRM    (1 << 4)
+#define CAM_SENSOR (1 << 5)
+#define CAM_SMMU   (1 << 6)
+#define CAM_SYNC   (1 << 7)
+#define CAM_ICP    (1 << 8)
+#define CAM_JPEG   (1 << 9)
+#define CAM_FD     (1 << 10)
+#define CAM_LRME   (1 << 11)
+
+#define GROUP      DEFAULT
+#define TRACE_ON   0
+
+#define CAM_ERR(__module, fmt, args...)                                      \
+	do { if (GROUP & __module) {                                         \
+		if (TRACE_ON)                                                \
+			trace_printk(fmt, ##args);                           \
+		else                                                         \
+			pr_err(fmt, ##args);                                 \
+	} } while (0)
+
+#define CAM_WARN(__module, fmt, args...)                                     \
+	do { if (GROUP & __module) {                                         \
+		if (TRACE_ON)                                                \
+			trace_printk(fmt, ##args);                           \
+		else                                                         \
+			pr_warn(fmt, ##args);                                \
+	} } while (0)
+
+#define CAM_INFO(__module, fmt, args...)                                     \
+	do { if (GROUP & __module) {                                         \
+		if (TRACE_ON)                                                \
+			trace_printk(fmt, ##args);                           \
+		else                                                         \
+			pr_info(fmt, ##args);                                \
+	} } while (0)
+
+#endif /* _CAM_DEBUG_UTIL_H_ */