imxtools: add regtools to work with register descriptions

These tools allow one to read a register description in a XML
file and to produce something useful out of it. Three example
programs are written:
- tester which simply prints the register tree
- headergen which produces a set of headers with the #define
- hwemulgen which produces something for the hwemul tool (to come)

Change-Id: I52573688b29d5faeaf64ce7c5ffe08ee8db3d33c

1 files changed, 108 insertions, 0 deletions

diff --git a/utils/imxtools/regtools/desc_parser.hpp b/utils/imxtools/regtools/desc_parser.hpp
new file mode 100644
index 0000000..908cff8
--- /dev/null
+++ b/utils/imxtools/regtools/desc_parser.hpp
@@ -0,0 +1,108 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Amaury Pouly
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/  
+#ifndef __DESC_PARSER__
+#define __DESC_PARSER__
+
+#include <stdint.h>
+#include <vector>
+#include <string>
+
+typedef uint32_t soc_addr_t;
+typedef uint32_t soc_word_t;
+typedef uint32_t soc_reg_flags_t;
+
+const soc_addr_t SOC_NO_ADDR = 0xffffffff;
+const soc_reg_flags_t REG_HAS_SCT = 1 << 0;
+
+struct soc_reg_field_value_t
+{
+    std::string name;
+    soc_word_t value;
+};
+
+struct soc_reg_field_t
+{
+    std::string name;
+    unsigned first_bit, last_bit;
+
+    soc_word_t bitmask() const
+    {
+        return ((1 << (last_bit - first_bit + 1)) - 1) << first_bit;
+    }
+
+    std::vector< soc_reg_field_value_t > values;
+};
+
+struct soc_reg_t
+{
+    std::string name;
+    soc_addr_t addr;
+    soc_reg_flags_t flags;
+
+    std::vector< soc_reg_field_t > fields;
+};
+
+struct soc_multireg_t
+{
+    std::string name;
+    soc_addr_t base;
+    unsigned count;
+    soc_addr_t offset;
+    soc_reg_flags_t flags;
+
+    std::vector< soc_reg_t > regs;
+    std::vector< soc_reg_field_t > fields;
+};
+
+struct soc_dev_t
+{
+    std::string name;
+    std::string long_name;
+    std::string desc;
+    soc_addr_t addr;
+
+    std::vector< soc_multireg_t > multiregs;
+    std::vector< soc_reg_t > regs;
+};
+
+struct soc_multidev_t
+{
+    std::string name;
+    std::string long_name;
+    std::string desc;
+
+    std::vector< soc_dev_t > devs;
+    std::vector< soc_multireg_t > multiregs;
+    std::vector< soc_reg_t > regs;
+};
+
+struct soc_t
+{
+    std::string name;
+    std::string desc;
+
+    std::vector< soc_dev_t > devs;
+    std::vector< soc_multidev_t > multidevs;
+};
+
+bool parse_soc_desc(const std::string& filename, std::vector< soc_t >& soc);
+
+#endif /* __DESC_PARSER__ */
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