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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2019 David Shah <david@symbioticeda.com>
* Copyright (C) 2021 Symbiflow Authors
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "xdc.h"
#include <string>
#include "context.h"
#include "log.h"
// Include tcl.h late because it messed with #define's and lets them leave the
// scope of the header.
#include <tcl.h>
NEXTPNR_NAMESPACE_BEGIN
static int port_set_from_any(Tcl_Interp *interp, Tcl_Obj *objPtr) { return TCL_ERROR; }
static void set_tcl_obj_string(Tcl_Obj *objPtr, const std::string &s)
{
NPNR_ASSERT(objPtr->bytes == nullptr);
// Need to have space for the end null byte.
objPtr->bytes = Tcl_Alloc(s.size() + 1);
// Length is length of string, not including the end null byte.
objPtr->length = s.size();
std::copy(s.begin(), s.end(), objPtr->bytes);
objPtr->bytes[objPtr->length] = '\0';
}
static void port_update_string(Tcl_Obj *objPtr)
{
const Context *ctx = static_cast<const Context *>(objPtr->internalRep.twoPtrValue.ptr1);
PortInfo *port_info = static_cast<PortInfo *>(objPtr->internalRep.twoPtrValue.ptr2);
std::string port_name = port_info->name.str(ctx);
set_tcl_obj_string(objPtr, port_name);
}
static void port_dup(Tcl_Obj *srcPtr, Tcl_Obj *dupPtr)
{
dupPtr->internalRep.twoPtrValue = srcPtr->internalRep.twoPtrValue;
}
static void port_free(Tcl_Obj *objPtr) {}
static void Tcl_SetStringResult(Tcl_Interp *interp, const std::string &s)
{
char *copy = Tcl_Alloc(s.size() + 1);
std::copy(s.begin(), s.end(), copy);
copy[s.size()] = '\0';
Tcl_SetResult(interp, copy, TCL_DYNAMIC);
}
static Tcl_ObjType port_object = {
"port", port_free, port_dup, port_update_string, port_set_from_any,
};
static int get_ports(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])
{
const Context *ctx = static_cast<const Context *>(data);
if (objc == 1) {
// Return list of all ports.
Tcl_SetStringResult(interp, "Unimplemented");
return TCL_ERROR;
} else if (objc == 2) {
const char *arg0 = Tcl_GetString(objv[1]);
IdString port_name = ctx->id(arg0);
auto iter = ctx->ports.find(port_name);
if (iter == ctx->ports.end()) {
Tcl_SetStringResult(interp, "Could not find port " + port_name.str(ctx));
return TCL_ERROR;
}
Tcl_Obj *result = Tcl_NewObj();
result->typePtr = &port_object;
result->internalRep.twoPtrValue.ptr1 = (void *)(ctx);
result->internalRep.twoPtrValue.ptr2 = (void *)(&iter->second);
result->bytes = nullptr;
port_update_string(result);
Tcl_SetObjResult(interp, result);
return TCL_OK;
} else {
return TCL_ERROR;
}
}
static int set_property(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])
{
// set_property <property> <value> <object>
if (objc != 4) {
Tcl_SetStringResult(interp, "Only simple 'set_property <property> <value> <object>' is supported");
return TCL_ERROR;
}
const char *property = Tcl_GetString(objv[1]);
const char *value = Tcl_GetString(objv[2]);
const Tcl_Obj *object = objv[3];
if (object->typePtr != &port_object) {
Tcl_SetStringResult(interp, "Only port objects are handled right now!");
return TCL_ERROR;
}
const Context *ctx = static_cast<const Context *>(object->internalRep.twoPtrValue.ptr1);
PortInfo *port_info = static_cast<PortInfo *>(object->internalRep.twoPtrValue.ptr2);
NPNR_ASSERT(port_info->net != nullptr);
CellInfo *cell = ctx->port_cells.at(port_info->name);
cell->attrs[ctx->id(property)] = Property(value);
return TCL_OK;
}
TclInterp::TclInterp(Context *ctx)
{
interp = Tcl_CreateInterp();
NPNR_ASSERT(Tcl_Init(interp) == TCL_OK);
Tcl_RegisterObjType(&port_object);
NPNR_ASSERT(Tcl_Eval(interp, "rename unknown _original_unknown") == TCL_OK);
NPNR_ASSERT(Tcl_Eval(interp, "proc unknown args {\n"
" set result [scan [lindex $args 0] \"%d\" value]\n"
" if { $result == 1 && [llength $args] == 1 } {\n"
" return \\[$value\\]\n"
" } else {\n"
" uplevel 1 [list _original_unknown {*}$args]\n"
" }\n"
"}") == TCL_OK);
Tcl_CreateObjCommand(interp, "get_ports", get_ports, ctx, nullptr);
Tcl_CreateObjCommand(interp, "set_property", set_property, ctx, nullptr);
}
TclInterp::~TclInterp() { Tcl_DeleteInterp(interp); }
NEXTPNR_NAMESPACE_END
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