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-rw-r--r--src/grt/fst/fstapi.h426
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diff --git a/src/grt/fst/fstapi.h b/src/grt/fst/fstapi.h
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+++ b/src/grt/fst/fstapi.h
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+/*
+ * Copyright (c) 2009-2014 Tony Bybell.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef FST_API_H
+#define FST_API_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <zlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <time.h>
+
+#define FST_RDLOAD "FSTLOAD | "
+
+typedef uint32_t fstHandle;
+
+enum fstWriterPackType {
+ FST_WR_PT_ZLIB = 0,
+ FST_WR_PT_FASTLZ = 1,
+ FST_WR_PT_LZ4 = 2
+};
+
+enum fstFileType {
+ FST_FT_MIN = 0,
+
+ FST_FT_VERILOG = 0,
+ FST_FT_VHDL = 1,
+ FST_FT_VERILOG_VHDL = 2,
+
+ FST_FT_MAX = 2
+};
+
+enum fstBlockType {
+ FST_BL_HDR = 0,
+ FST_BL_VCDATA = 1,
+ FST_BL_BLACKOUT = 2,
+ FST_BL_GEOM = 3,
+ FST_BL_HIER = 4,
+ FST_BL_VCDATA_DYN_ALIAS = 5,
+ FST_BL_HIER_LZ4 = 6,
+ FST_BL_HIER_LZ4DUO = 7,
+ FST_BL_VCDATA_DYN_ALIAS2 = 8,
+
+ FST_BL_ZWRAPPER = 254, /* indicates that whole trace is gz wrapped */
+ FST_BL_SKIP = 255 /* used while block is being written */
+};
+
+enum fstScopeType {
+ FST_ST_MIN = 0,
+
+ FST_ST_VCD_MODULE = 0,
+ FST_ST_VCD_TASK = 1,
+ FST_ST_VCD_FUNCTION = 2,
+ FST_ST_VCD_BEGIN = 3,
+ FST_ST_VCD_FORK = 4,
+ FST_ST_VCD_GENERATE = 5,
+ FST_ST_VCD_STRUCT = 6,
+ FST_ST_VCD_UNION = 7,
+ FST_ST_VCD_CLASS = 8,
+ FST_ST_VCD_INTERFACE = 9,
+ FST_ST_VCD_PACKAGE = 10,
+ FST_ST_VCD_PROGRAM = 11,
+
+ FST_ST_VHDL_ARCHITECTURE = 12,
+ FST_ST_VHDL_PROCEDURE = 13,
+ FST_ST_VHDL_FUNCTION = 14,
+ FST_ST_VHDL_RECORD = 15,
+ FST_ST_VHDL_PROCESS = 16,
+ FST_ST_VHDL_BLOCK = 17,
+ FST_ST_VHDL_FOR_GENERATE = 18,
+ FST_ST_VHDL_IF_GENERATE = 19,
+ FST_ST_VHDL_GENERATE = 20,
+ FST_ST_VHDL_PACKAGE = 21,
+
+ FST_ST_MAX = 21,
+
+ FST_ST_GEN_ATTRBEGIN = 252,
+ FST_ST_GEN_ATTREND = 253,
+
+ FST_ST_VCD_SCOPE = 254,
+ FST_ST_VCD_UPSCOPE = 255
+};
+
+enum fstVarType {
+ FST_VT_MIN = 0, /* start of vartypes */
+
+ FST_VT_VCD_EVENT = 0,
+ FST_VT_VCD_INTEGER = 1,
+ FST_VT_VCD_PARAMETER = 2,
+ FST_VT_VCD_REAL = 3,
+ FST_VT_VCD_REAL_PARAMETER = 4,
+ FST_VT_VCD_REG = 5,
+ FST_VT_VCD_SUPPLY0 = 6,
+ FST_VT_VCD_SUPPLY1 = 7,
+ FST_VT_VCD_TIME = 8,
+ FST_VT_VCD_TRI = 9,
+ FST_VT_VCD_TRIAND = 10,
+ FST_VT_VCD_TRIOR = 11,
+ FST_VT_VCD_TRIREG = 12,
+ FST_VT_VCD_TRI0 = 13,
+ FST_VT_VCD_TRI1 = 14,
+ FST_VT_VCD_WAND = 15,
+ FST_VT_VCD_WIRE = 16,
+ FST_VT_VCD_WOR = 17,
+ FST_VT_VCD_PORT = 18,
+ FST_VT_VCD_SPARRAY = 19, /* used to define the rownum (index) port for a sparse array */
+ FST_VT_VCD_REALTIME = 20,
+
+ FST_VT_GEN_STRING = 21, /* generic string type (max len is defined dynamically via fstWriterEmitVariableLengthValueChange) */
+
+ FST_VT_SV_BIT = 22,
+ FST_VT_SV_LOGIC = 23,
+ FST_VT_SV_INT = 24, /* declare as size = 32 */
+ FST_VT_SV_SHORTINT = 25, /* declare as size = 16 */
+ FST_VT_SV_LONGINT = 26, /* declare as size = 64 */
+ FST_VT_SV_BYTE = 27, /* declare as size = 8 */
+ FST_VT_SV_ENUM = 28, /* declare as appropriate type range */
+ FST_VT_SV_SHORTREAL = 29, /* declare and emit same as FST_VT_VCD_REAL (needs to be emitted as double, not a float) */
+
+ FST_VT_MAX = 29 /* end of vartypes */
+};
+
+enum fstVarDir {
+ FST_VD_MIN = 0,
+
+ FST_VD_IMPLICIT = 0,
+ FST_VD_INPUT = 1,
+ FST_VD_OUTPUT = 2,
+ FST_VD_INOUT = 3,
+ FST_VD_BUFFER = 4,
+ FST_VD_LINKAGE = 5,
+
+ FST_VD_MAX = 5
+};
+
+enum fstHierType {
+ FST_HT_MIN = 0,
+
+ FST_HT_SCOPE = 0,
+ FST_HT_UPSCOPE = 1,
+ FST_HT_VAR = 2,
+ FST_HT_ATTRBEGIN = 3,
+ FST_HT_ATTREND = 4,
+
+ FST_HT_MAX = 4
+};
+
+enum fstAttrType {
+ FST_AT_MIN = 0,
+
+ FST_AT_MISC = 0, /* self-contained: does not need matching FST_HT_ATTREND */
+ FST_AT_ARRAY = 1,
+ FST_AT_ENUM = 2,
+ FST_AT_PACK = 3,
+
+ FST_AT_MAX = 3
+};
+
+enum fstMiscType {
+ FST_MT_MIN = 0,
+
+ FST_MT_COMMENT = 0, /* use fstWriterSetComment() to emit */
+ FST_MT_ENVVAR = 1, /* use fstWriterSetEnvVar() to emit */
+ FST_MT_SUPVAR = 2, /* use fstWriterCreateVar2() to emit */
+ FST_MT_PATHNAME = 3, /* reserved for fstWriterSetSourceStem() string -> number management */
+ FST_MT_SOURCESTEM = 4, /* use fstWriterSetSourceStem() to emit */
+ FST_MT_SOURCEISTEM = 5, /* use fstWriterSetSourceInstantiationStem() to emit */
+ FST_MT_UNKNOWN = 6,
+
+ FST_MT_MAX = 6
+};
+
+enum fstArrayType {
+ FST_AR_MIN = 0,
+
+ FST_AR_NONE = 0,
+ FST_AR_UNPACKED = 1,
+ FST_AR_PACKED = 2,
+ FST_AR_SPARSE = 3,
+
+ FST_AR_MAX = 3
+};
+
+enum fstEnumValueType {
+ FST_EV_SV_INTEGER = 0,
+ FST_EV_SV_BIT = 1,
+ FST_EV_SV_LOGIC = 2,
+ FST_EV_SV_INT = 3,
+ FST_EV_SV_SHORTINT = 4,
+ FST_EV_SV_LONGINT = 5,
+ FST_EV_SV_BYTE = 6,
+ FST_EV_SV_UNSIGNED_INTEGER = 7,
+ FST_EV_SV_UNSIGNED_BIT = 8,
+ FST_EV_SV_UNSIGNED_LOGIC = 9,
+ FST_EV_SV_UNSIGNED_INT = 10,
+ FST_EV_SV_UNSIGNED_SHORTINT = 11,
+ FST_EV_SV_UNSIGNED_LONGINT = 12,
+ FST_EV_SV_UNSIGNED_BYTE = 13,
+
+ FST_EV_MAX = 13
+};
+
+enum fstPackType {
+ FST_PT_NONE = 0,
+ FST_PT_UNPACKED = 1,
+ FST_PT_PACKED = 2,
+ FST_PT_TAGGED_PACKED = 3,
+
+ FST_PT_MAX = 3
+};
+
+enum fstSupplementalVarType {
+ FST_SVT_MIN = 0,
+
+ FST_SVT_NONE = 0,
+
+ FST_SVT_VHDL_SIGNAL = 1,
+ FST_SVT_VHDL_VARIABLE = 2,
+ FST_SVT_VHDL_CONSTANT = 3,
+ FST_SVT_VHDL_FILE = 4,
+ FST_SVT_VHDL_MEMORY = 5,
+
+ FST_SVT_MAX = 5,
+};
+
+enum fstSupplementalDataType {
+ FST_SDT_MIN = 0,
+
+ FST_SDT_NONE = 0,
+
+ FST_SDT_VHDL_BOOLEAN = 1,
+ FST_SDT_VHDL_BIT = 2,
+ FST_SDT_VHDL_BIT_VECTOR = 3,
+ FST_SDT_VHDL_STD_ULOGIC = 4,
+ FST_SDT_VHDL_STD_ULOGIC_VECTOR = 5,
+ FST_SDT_VHDL_STD_LOGIC = 6,
+ FST_SDT_VHDL_STD_LOGIC_VECTOR = 7,
+ FST_SDT_VHDL_UNSIGNED = 8,
+ FST_SDT_VHDL_SIGNED = 9,
+ FST_SDT_VHDL_INTEGER = 10,
+ FST_SDT_VHDL_REAL = 11,
+ FST_SDT_VHDL_NATURAL = 12,
+ FST_SDT_VHDL_POSITIVE = 13,
+ FST_SDT_VHDL_TIME = 14,
+ FST_SDT_VHDL_CHARACTER = 15,
+ FST_SDT_VHDL_STRING = 16,
+
+ FST_SDT_MAX = 16,
+
+ FST_SDT_SVT_SHIFT_COUNT = 10, /* FST_SVT_* is ORed in by fstWriterCreateVar2() to the left after shifting FST_SDT_SVT_SHIFT_COUNT */
+ FST_SDT_ABS_MAX = ((1<<(FST_SDT_SVT_SHIFT_COUNT))-1)
+};
+
+
+struct fstHier
+{
+unsigned char htyp;
+
+union {
+ /* if htyp == FST_HT_SCOPE */
+ struct fstHierScope {
+ unsigned char typ; /* FST_ST_MIN ... FST_ST_MAX */
+ const char *name;
+ const char *component;
+ uint32_t name_length; /* strlen(u.scope.name) */
+ uint32_t component_length; /* strlen(u.scope.component) */
+ } scope;
+
+ /* if htyp == FST_HT_VAR */
+ struct fstHierVar {
+ unsigned char typ; /* FST_VT_MIN ... FST_VT_MAX */
+ unsigned char direction; /* FST_VD_MIN ... FST_VD_MAX */
+ unsigned char svt_workspace; /* zeroed out by FST reader, for client code use */
+ unsigned char sdt_workspace; /* zeroed out by FST reader, for client code use */
+ unsigned int sxt_workspace; /* zeroed out by FST reader, for client code use */
+ const char *name;
+ uint32_t length;
+ fstHandle handle;
+ uint32_t name_length; /* strlen(u.var.name) */
+ unsigned is_alias : 1;
+ } var;
+
+ /* if htyp == FST_HT_ATTRBEGIN */
+ struct fstHierAttr {
+ unsigned char typ; /* FST_AT_MIN ... FST_AT_MAX */
+ unsigned char subtype; /* from fstMiscType, fstArrayType, fstEnumValueType, fstPackType */
+ const char *name;
+ uint64_t arg; /* number of array elements, struct members, or some other payload (possibly ignored) */
+ uint64_t arg_from_name; /* for when name is overloaded as a variable-length integer (FST_AT_MISC + FST_MT_SOURCESTEM) */
+ uint32_t name_length; /* strlen(u.attr.name) */
+ } attr;
+ } u;
+};
+
+
+/*
+ * writer functions
+ */
+void fstWriterClose(void *ctx);
+void * fstWriterCreate(const char *nam, int use_compressed_hier);
+ /* used for Verilog/SV */
+fstHandle fstWriterCreateVar(void *ctx, enum fstVarType vt, enum fstVarDir vd,
+ uint32_t len, const char *nam, fstHandle aliasHandle);
+ /* future expansion for VHDL and other languages. The variable type, data type, etc map onto
+ the current Verilog/SV one. The "type" string is optional for a more verbose or custom description */
+fstHandle fstWriterCreateVar2(void *ctx, enum fstVarType vt, enum fstVarDir vd,
+ uint32_t len, const char *nam, fstHandle aliasHandle,
+ const char *type, enum fstSupplementalVarType svt, enum fstSupplementalDataType sdt);
+void fstWriterEmitValueChange(void *ctx, fstHandle handle, const void *val);
+void fstWriterEmitVariableLengthValueChange(void *ctx, fstHandle handle, const void *val, uint32_t len);
+void fstWriterEmitDumpActive(void *ctx, int enable);
+void fstWriterEmitTimeChange(void *ctx, uint64_t tim);
+void fstWriterFlushContext(void *ctx);
+int fstWriterGetDumpSizeLimitReached(void *ctx);
+int fstWriterGetFseekFailed(void *ctx);
+void fstWriterSetAttrBegin(void *ctx, enum fstAttrType attrtype, int subtype,
+ const char *attrname, uint64_t arg);
+void fstWriterSetAttrEnd(void *ctx);
+void fstWriterSetComment(void *ctx, const char *comm);
+void fstWriterSetDate(void *ctx, const char *dat);
+void fstWriterSetDumpSizeLimit(void *ctx, uint64_t numbytes);
+void fstWriterSetEnvVar(void *ctx, const char *envvar);
+void fstWriterSetFileType(void *ctx, enum fstFileType filetype);
+void fstWriterSetPackType(void *ctx, enum fstWriterPackType typ);
+void fstWriterSetParallelMode(void *ctx, int enable);
+void fstWriterSetRepackOnClose(void *ctx, int enable); /* type = 0 (none), 1 (libz) */
+void fstWriterSetScope(void *ctx, enum fstScopeType scopetype,
+ const char *scopename, const char *scopecomp);
+void fstWriterSetSourceInstantiationStem(void *ctx, const char *path, unsigned int line, unsigned int use_realpath);
+void fstWriterSetSourceStem(void *ctx, const char *path, unsigned int line, unsigned int use_realpath);
+void fstWriterSetTimescale(void *ctx, int ts);
+void fstWriterSetTimescaleFromString(void *ctx, const char *s);
+void fstWriterSetTimezero(void *ctx, int64_t tim);
+void fstWriterSetUpscope(void *ctx);
+void fstWriterSetVersion(void *ctx, const char *vers);
+
+
+/*
+ * reader functions
+ */
+void fstReaderClose(void *ctx);
+void fstReaderClrFacProcessMask(void *ctx, fstHandle facidx);
+void fstReaderClrFacProcessMaskAll(void *ctx);
+uint64_t fstReaderGetAliasCount(void *ctx);
+const char * fstReaderGetCurrentFlatScope(void *ctx);
+void * fstReaderGetCurrentScopeUserInfo(void *ctx);
+int fstReaderGetCurrentScopeLen(void *ctx);
+const char * fstReaderGetDateString(void *ctx);
+int fstReaderGetDoubleEndianMatchState(void *ctx);
+uint64_t fstReaderGetDumpActivityChangeTime(void *ctx, uint32_t idx);
+unsigned char fstReaderGetDumpActivityChangeValue(void *ctx, uint32_t idx);
+uint64_t fstReaderGetEndTime(void *ctx);
+int fstReaderGetFacProcessMask(void *ctx, fstHandle facidx);
+int fstReaderGetFileType(void *ctx);
+int fstReaderGetFseekFailed(void *ctx);
+fstHandle fstReaderGetMaxHandle(void *ctx);
+uint64_t fstReaderGetMemoryUsedByWriter(void *ctx);
+uint32_t fstReaderGetNumberDumpActivityChanges(void *ctx);
+uint64_t fstReaderGetScopeCount(void *ctx);
+uint64_t fstReaderGetStartTime(void *ctx);
+signed char fstReaderGetTimescale(void *ctx);
+int64_t fstReaderGetTimezero(void *ctx);
+uint64_t fstReaderGetValueChangeSectionCount(void *ctx);
+char * fstReaderGetValueFromHandleAtTime(void *ctx, uint64_t tim, fstHandle facidx, char *buf);
+uint64_t fstReaderGetVarCount(void *ctx);
+const char * fstReaderGetVersionString(void *ctx);
+struct fstHier *fstReaderIterateHier(void *ctx);
+int fstReaderIterateHierRewind(void *ctx);
+int fstReaderIterBlocks(void *ctx,
+ void (*value_change_callback)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value),
+ void *user_callback_data_pointer, FILE *vcdhandle);
+int fstReaderIterBlocks2(void *ctx,
+ void (*value_change_callback)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value),
+ void (*value_change_callback_varlen)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value, uint32_t len),
+ void *user_callback_data_pointer, FILE *vcdhandle);
+void fstReaderIterBlocksSetNativeDoublesOnCallback(void *ctx, int enable);
+void * fstReaderOpen(const char *nam);
+void * fstReaderOpenForUtilitiesOnly(void);
+const char * fstReaderPopScope(void *ctx);
+int fstReaderProcessHier(void *ctx, FILE *vcdhandle);
+const char * fstReaderPushScope(void *ctx, const char *nam, void *user_info);
+void fstReaderResetScope(void *ctx);
+void fstReaderSetFacProcessMask(void *ctx, fstHandle facidx);
+void fstReaderSetFacProcessMaskAll(void *ctx);
+void fstReaderSetLimitTimeRange(void *ctx, uint64_t start_time, uint64_t end_time);
+void fstReaderSetUnlimitedTimeRange(void *ctx);
+void fstReaderSetVcdExtensions(void *ctx, int enable);
+
+
+/*
+ * utility functions
+ */
+int fstUtilityBinToEsc(unsigned char *d, unsigned char *s, int len);
+int fstUtilityEscToBin(unsigned char *d, unsigned char *s, int len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
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