Initial snapshot of stm-log

Preliminary changes for the stm-log userspace library for
logging via STM.

Change-Id: Ief82b6c8c7847b26ebbbe0d9f6512c7d97cd48f5
diff --git a/stm-log.h b/stm-log.h
new file mode 100644
index 0000000..c88d5a6
--- /dev/null
+++ b/stm-log.h
@@ -0,0 +1,57 @@
+/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __STM_LOG__
+#define __STM_LOG__
+
+#include <stdint.h>
+#include <linux/coresight-stm.h>
+
+enum {
+    STM_DFLT_ENTITY   = 0x01,
+    STM_DFLT_PROTOCOL = 0x02,
+    STM_DFLT_OPTIONS  = 0x04,
+};
+
+void stm_log_initdefaults(uint32_t init_mask,
+                          uint8_t  entity_id,
+                          uint8_t  proto_id,
+                          uint32_t options);
+
+void stm_log(const char *format, ...);
+void stm_logbin(int length, void *data);
+void stm_log_ex(uint8_t     entity_id,
+                uint8_t     proto_id,
+                uint32_t    options,
+                const char *format, ...);
+void stm_logbin_ex(uint8_t     entity_id,
+                   uint8_t     proto_id,
+                   uint32_t    options,
+                   int         length,
+                   void        *data);
+#endif /* __STM_LOG__ */