mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-20 23:17:42 +00:00
127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
/*
|
|
* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* 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, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __CPLD_XILINX_H__
|
|
#define __CPLD_XILINX_H__
|
|
|
|
#include "jtag_tap.hpp"
|
|
|
|
#include "utility.hpp"
|
|
|
|
#include <cstdint>
|
|
#include <cstddef>
|
|
#include <array>
|
|
|
|
namespace cpld {
|
|
namespace xilinx {
|
|
|
|
using jtag::tap::state_t;
|
|
|
|
class XC2C64A {
|
|
public:
|
|
using block_id_t = uint8_t;
|
|
|
|
static constexpr size_t block_length = 274;
|
|
static constexpr size_t blocks_count = 98;
|
|
|
|
static constexpr size_t block_bytes = (block_length + 7) >> 3;
|
|
|
|
struct verify_block_t {
|
|
block_id_t id;
|
|
std::array<uint8_t, block_bytes> data;
|
|
std::array<uint8_t, block_bytes> mask;
|
|
};
|
|
|
|
struct program_block_t {
|
|
block_id_t id;
|
|
std::array<uint8_t, block_bytes> data;
|
|
};
|
|
|
|
using verify_blocks_t = std::array<verify_block_t, blocks_count>;
|
|
|
|
constexpr XC2C64A(
|
|
jtag::Target& jtag_interface
|
|
) : tap { jtag_interface }
|
|
{
|
|
}
|
|
|
|
void write_sram(const verify_blocks_t& blocks);
|
|
bool verify_sram(const verify_blocks_t& blocks);
|
|
|
|
bool verify_eeprom(const verify_blocks_t& blocks);
|
|
void init_from_eeprom();
|
|
|
|
private:
|
|
static constexpr size_t idcode_length = 32;
|
|
using idcode_t = uint32_t;
|
|
|
|
static constexpr size_t ir_length = 8;
|
|
static constexpr size_t block_id_length = 7;
|
|
|
|
static constexpr idcode_t idcode = 0x06e58093;
|
|
static constexpr idcode_t idcode_mask = 0x0fff8fff;
|
|
|
|
using ir_t = uint8_t;
|
|
|
|
jtag::tap::TAPMachine tap;
|
|
|
|
enum class instruction_t : ir_t {
|
|
INTEST = 0b00000010, // -> boundary-scan
|
|
BYPASS = 0b11111111, // -> bypass
|
|
SAMPLE = 0b00000011, // -> boundary-scan
|
|
EXTEST = 0b00000000, // -> boundary-scan
|
|
IDCODE = 0b00000001, // -> device ID
|
|
USERCODE = 0b11111101, // -> device ID
|
|
HIGHZ = 0b11111100, // -> bypass
|
|
ISC_ENABLE_CLAMP = 0b11101001, // -> ISC shift
|
|
ISC_ENABLE_OTF = 0b11100100, // -> ISC shift
|
|
ISC_ENABLE = 0b11101000, // -> ISC shift
|
|
ISC_SRAM_READ = 0b11100111, // -> ISC shift
|
|
ISC_WRITE = 0b11100110, // -> ISC shift, alias ISC_SRAM_WRITE
|
|
ISC_ERASE = 0b11101101, // -> ISC shift
|
|
ISC_PROGRAM = 0b11101010, // -> ISC shift
|
|
ISC_READ = 0b11101110, // -> ISC shift, alias ISC_VERIFY
|
|
ISC_INIT = 0b11110000, // -> ISC shift
|
|
ISC_DISABLE = 0b11000000, // -> ISC shift
|
|
TEST_ENABLE = 0b00010001, // alias Private1
|
|
BULKPROG = 0b00010010, // alias Private2
|
|
ERASE_ALL = 0b00010100, // alias Private4
|
|
MVERIFY = 0b00010011, // alias Private3
|
|
TEST_DISABLE = 0b00010101, // alias Private5
|
|
ISC_NOOP = 0b11100000, // -> bypass
|
|
};
|
|
|
|
bool shift_ir(const instruction_t instruction);
|
|
|
|
void reset();
|
|
void enable();
|
|
void enable_otf();
|
|
void discharge();
|
|
void init();
|
|
void disable();
|
|
bool bypass();
|
|
};
|
|
|
|
} /* namespace xilinx */
|
|
} /* namespace cpld */
|
|
|
|
#endif/*__CPLD_XILINX_H__*/
|