71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
|
/*
|
||
|
|
* nextpnr -- Next Generation Place and Route
|
||
|
|
*
|
||
|
|
* Copyright (C) 2018 David Shah <david@symbioticeda.com>
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef IO_H
|
||
|
|
#define IO_H
|
||
|
|
|
||
|
|
#include "nextpnr.h"
|
||
|
|
|
||
|
|
NEXTPNR_NAMESPACE_BEGIN
|
||
|
|
|
||
|
|
enum class IOVoltage
|
||
|
|
{
|
||
|
|
VCC_3V3,
|
||
|
|
VCC_2V5,
|
||
|
|
VCC_1V8,
|
||
|
|
VCC_1V5,
|
||
|
|
VCC_1V35,
|
||
|
|
VCC_1V2
|
||
|
|
};
|
||
|
|
|
||
|
|
std::string iovoltage_to_str(IOVoltage v);
|
||
|
|
IOVoltage iovoltage_from_str(const std::string &name);
|
||
|
|
|
||
|
|
enum class IOType
|
||
|
|
{
|
||
|
|
TYPE_NONE,
|
||
|
|
#define X(t) t,
|
||
|
|
#include "iotypes.inc"
|
||
|
|
#undef X
|
||
|
|
TYPE_UNKNOWN,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum class IOSide
|
||
|
|
{
|
||
|
|
LEFT,
|
||
|
|
RIGHT,
|
||
|
|
TOP,
|
||
|
|
BOTTOM,
|
||
|
|
};
|
||
|
|
|
||
|
|
std::string iotype_to_str(IOType type);
|
||
|
|
IOType ioType_from_str(const std::string &name);
|
||
|
|
|
||
|
|
// IO related functions
|
||
|
|
IOVoltage get_vccio(IOType type);
|
||
|
|
bool is_strong_vccio_constraint(IOType type, PortType dir, IOSide side);
|
||
|
|
bool is_differential(IOType type);
|
||
|
|
bool is_referenced(IOType type);
|
||
|
|
|
||
|
|
bool valid_loc_for_io(IOType type, PortType dir, IOSide side, int z);
|
||
|
|
|
||
|
|
NEXTPNR_NAMESPACE_END
|
||
|
|
|
||
|
|
#endif
|