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Check-in cflash util

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Matt Harlum 2023-02-02 20:26:15 +00:00
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18
cflash/.vscode/c_cpp_properties.json vendored Normal file
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{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}/**",
"/opt/amiga/m68k-amigaos/ndk13-include"
],
"defines": [],
"compilerPath": "/opt/amiga/bin/m68k-amigaos-gcc",
"cStandard": "gnu17",
"cppStandard": "gnu++14",
"intelliSenseMode": "linux-gcc-x64",
"configurationProvider": "ms-vscode.makefile-tools"
}
],
"version": 4
}

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cflash/.vscode/settings.json vendored Normal file
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{
"files.associations": {
"config.h": "c",
"29f160.h": "c",
"cider.h": "c",
"constants.h": "c",
"ide_flash.h": "c",
"kick_flash.h": "c",
"dos.h": "c"
}
}

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cflash/LICENSE Normal file
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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cflash/Makefile Normal file
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PROJECT=cflash
CC=m68k-amigaos-gcc
CFLAGS=-lamiga -mcrt=nix13 -mcpu=68000 -Wall -Wno-pointer-sign -Os -fomit-frame-pointer
.PHONY: clean all
all: $(PROJECT)
OBJ = kick_flash.o \
ide_flash.o \
config.o \
main.o
SRCS = $(OBJ:%.o=%.c)
cflash: $(SRCS) *.h
${CC} -o $@ $(CFLAGS) $(SRCS)
clean:
-rm $(PROJECT)

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cflash/cider.h Normal file
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#define SET_BANKBIT 0x5000
#define CLR_BANKBIT 0x4000
#define BONUSEN_BIT 0x2000

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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdbool.h>
#include <proto/exec.h>
#include <stdio.h>
#include "main.h"
#include "constants.h"
#include "config.h"
/** configure
*
* @brief Parse the command arguments and return the config
* @param argc Arg count
* @param argv Argument variables
* @returns Pointer to a Config struct or NULL on error
*/
struct Config* configure(int argc, char *argv[]) {
bool error = false;
struct Config *config;
config = (struct Config *)AllocMem(sizeof(struct Config),MEMF_CLEAR);
if (config == NULL) return NULL;
config->op = OP_NONE;
config->source = SOURCE_NONE;
config->skipVerify = false;
config->programBank = FLASH_BANK_1;
for (int i=1; i<argc; i++) {
if (argv[i][0] == '-') {
switch(argv[i][1]) {
case 'c':
if (config->source == SOURCE_NONE) {
config->source = SOURCE_ROM;
} else {
printf("Only one of -c or -f can be specified.\n");
error = true;
}
break;
case 'V':
config->skipVerify = true;
break;
case 'E':
if (config-> op == OP_NONE) {
config->op = OP_ERASE_CHIP;
} else {
error = true;
printf("Only one operation can be performed at a time.\n");
}
break;
case 'e':
if (config-> op == OP_NONE) {
config->op = OP_ERASE_BANK;
} else {
error = true;
printf("Only one operation can be performed at a time.\n");
}
break;
case 'F':
case 'f':
if (config->source == SOURCE_NONE) {
if (i+1 < argc) {
config->source = SOURCE_FILE;
config->ks_filename = argv[i+1];
i++;
}
} else{
printf("Only one of -c or -f can be specified.\n");
error = true;
}
break;
case 'I':
if (i+1 < argc) {
config->flash_ide_rom = true;
config->ide_rom_filename = argv[i+1];
i++;
}
break;
case 'i':
if (config-> op == OP_NONE) {
config->op = OP_IDENTIFY;
} else {
error = true;
printf("Only one operation can be performed at a time.\n");
}
break;
case '0':
config->programBank = FLASH_BANK_0;
break;
case '1':
config->programBank = FLASH_BANK_1;
break;
case '2':
config->programBank = FLASH_BANK_2;
break;
case '3':
config->programBank = FLASH_BANK_3;
break;
case 'v':
if (config-> op == OP_NONE) {
config->op = OP_VERIFY;
} else {
error = true;
printf("Only one operation can be performed at a time.\n");
}
break;
}
}
}
if (config->op == OP_NONE) {
if (config->source == SOURCE_NONE) {
error = true;
} else {
config->op = OP_PROGRAM;
}
}
if (config->op == OP_VERIFY && config->source == SOURCE_NONE) {
printf("Must specify filename or -c to compare against ROM\n");
error = true;
}
if (error) {
FreeMem(config,sizeof(struct Config));
return (NULL);
} else {
return (config);
}
}
/** usage
* @brief Print the usage information
*/
void usage() {
printf("\nUsage: cflash [-fieEvV] [-c|-f <kickstart rom>] [-0|1] \n\n");
printf(" -c - Copy ROM to Flash.\n");
printf(" -f <kickstart file> - Kickstart to Flash or verify.\n");
printf(" -i - Print Flash device id.\n");
printf(" -I <ide rom> - Flash IDE ROM.\n");
printf(" -e - Erase bank.\n");
printf(" -E - Erase chip.\n");
printf(" -v - Verify bank against file or ROM\n");
printf(" -V - Skip verification after programming.\n");
printf(" -0 - Select bank 0 - 1st $FO Extended ROM.\n");
printf(" -1 - Select bank 1 - 1st $F8 Kickstart ROM.\n");
printf(" -2 - Select bank 2 - 2nd $FO Extended ROM.\n");
printf(" -3 - Select bank 3 - 2nd $F8 Kickstart ROM.\n");
}

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cflash/config.h Normal file
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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef CONFIG_H
#define CONFIG_H
typedef enum {
OP_NONE,
OP_PROGRAM,
OP_VERIFY,
OP_ERASE_BANK,
OP_ERASE_CHIP,
OP_IDENTIFY
} operation_type;
typedef enum {
SOURCE_NONE,
SOURCE_FILE,
SOURCE_ROM
} source_type;
struct Config {
ULONG programBank;
operation_type op;
source_type source;
bool skipVerify;
char *ks_filename;
bool flash_ide_rom;
char *ide_rom_filename;
};
struct Config* configure(int, char* []);
void usage();
#endif

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cflash/constants.h Normal file
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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef CONSTANTS_H
#define CONSTANTS_H
#define ROM_256K 0x040000
#define ROM_512K 0x080000
#define ROM_1M 0x100000
#define FLASH_BANK_0 0x000000
#define FLASH_BANK_1 0x080000
#define FLASH_BANK_2 0x100000
#define FLASH_BANK_3 0x180000
#endif

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cflash/ide_flash.c Normal file
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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <proto/expansion.h>
#include <exec/types.h>
#include <stdbool.h>
#include "constants.h"
#include "ide_flash.h"
#include "ide_flash_constants.h"
void *ide_flashBase;
/** ide_flash_writeByte
*
* @brief Write a byte to the Flash
* @param address Address to write to
* @param data The data to be written
*/
void ide_flash_writeByte(UWORD address, UBYTE data) {
address <<= 1;
address &= (FLASH_SIZE-1);
ide_flash_unlock_sdp();
ide_flash_command(CMD_BYTE_PROGRAM);
*(UBYTE *)(ide_flashBase + address) = data;
ide_flash_poll(address);
return;
}
/** ide_flash_command
*
* @brief send a command to the Flash
* @param command
*/
void ide_flash_command(UWORD command) {
*(UBYTE *)(ide_flashBase + ADDR_CMD_STEP_1) = command;
return;
}
/** ide_flash_unlock_sdp
*
* @brief Send the SDP command sequence
*/
void ide_flash_unlock_sdp() {
*(UBYTE *)(ide_flashBase + ADDR_CMD_STEP_1) = CMD_SDP_STEP_1;
*(UBYTE *)(ide_flashBase + ADDR_CMD_STEP_2) = CMD_SDP_STEP_2;
return;
}
/** ide_flash_erase_chip
*
* @brief Perform a chip erase
*/
void ide_flash_erase_chip() {
ide_flash_unlock_sdp();
ide_flash_command(CMD_ERASE);
ide_flash_unlock_sdp();
ide_flash_command(CMD_ERASE_CHIP);
ide_flash_poll(0);
}
/** ide_flash_poll
*
* @brief Poll the status bits at address, until they indicate that the operation has completed.
* @param address Address to poll
*/
void ide_flash_poll(UWORD address) {
address <<= 1;
address &= (FLASH_SIZE-1);
volatile UBYTE *read1 = ((void *)ide_flashBase + address);
volatile UBYTE *read2 = ((void *)ide_flashBase + address);
while (((*read1 & 1<<6) != (*read2 & 1<<6))) {;;}
}
/** ide_flash_init
*
* @brief Check the manufacturer id of the device, return manuf and dev id
* @param manuf Pointer to a UBYTE that will be updated with the returned manufacturer id
* @param devid Pointer to a UBYTE that will be updatet with the returned device id
* @param flashBase Pointer to the Flash base address
* @return True if the manufacturer ID matches the expected value
*/
bool ide_flash_init(UBYTE *manuf, UBYTE *devid, ULONG *flashBase) {
bool ret = false;
UBYTE manufId;
UBYTE deviceId;
ide_flashBase = flashBase;
ide_flash_unlock_sdp();
ide_flash_command(CMD_ID_ENTRY);
manufId = *(UBYTE *)ide_flashBase;
deviceId = *(UBYTE *)(ide_flashBase + 2);
ide_flash_command(CMD_CFI_ID_EXIT);
if (manuf) *manuf = manufId;
if (devid) *devid = deviceId;
if (manufId == FLASH_MANUF && deviceId == FLASH_DEV && flashBase) {
ret = true;
}
return (ret);
}

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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef IDE_FLASH_H
#define IDE_FLASH_H
#include <exec/types.h>
#include <stdbool.h>
void ide_flash_unlock_sdp();
void ide_flash_erase_chip();
void ide_flash_command(UWORD);
void ide_flash_writeByte(UWORD, UBYTE);
bool ide_flash_init(UBYTE *, UBYTE *, ULONG *);
void ide_flash_poll(UWORD);
void ide_flash_erase_block(UWORD);
#endif

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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef IDE_FLASH_CONSTANTS_H
#define IDE_FLASH_CONSTANTS_H
// SST 39SF010
#define FLASH_MANUF 0xBF
#define FLASH_DEV 0xB5
#define FLASH_SIZE 0x8000 // Actually a 128K ROM but only 32K mapped
#define FLASH_SECTORSIZE 0x2000
// Command addresses left-shifted because Flash A0 = CPU A1
#define ADDR_CMD_STEP_1 (0x5555 << 1)
#define ADDR_CMD_STEP_2 (0x2AAA << 1)
#define CMD_SDP_STEP_1 0xAA
#define CMD_SDP_STEP_2 0x55
#define CMD_BYTE_PROGRAM 0xA0
#define CMD_ERASE 0x80
#define CMD_ERASE_SECTOR 0x30
#define CMD_ERASE_CHIP 0x10
#define CMD_ID_ENTRY 0x90
#define CMD_CFI_ID_EXIT 0xF0
#define CMD_READ_RESET 0xF0
#endif

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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <proto/expansion.h>
#include <exec/types.h>
#include <stdbool.h>
#include "kick_flash.h"
#include "kick_flash_constants.h"
#include "constants.h"
void *flashbase = (void *)FLASHBASE;
void *controlBase = NULL;
enum {
TOP,
BOTTOM
} flash_bootbank;
/** kick_flash_writeWord
*
* @brief Write a word to the Flash
* @param address Address to write to
* @param data The word to write
*/
void kick_flash_writeWord(ULONG address, UWORD data) {
address &= (FLASH_SIZE-1);
kick_flash_unlock_sdp();
kick_flash_command(CMD_WORD_PROGRAM);
*(UWORD *)(flashbase + address) = data;
kick_flash_poll(address);
return;
}
/** kick_flash_command
*
* @brief send a command to the Flash
* @param command
*/
void kick_flash_command(UWORD command) {
*(UWORD *)(flashbase + ADDR_CMD_STEP_1) = command;
return;
}
/** kick_flash_unlock_sdp
*
* @brief Send the SDP command sequence
*/
void kick_flash_unlock_sdp() {
*(UWORD *)(flashbase + ADDR_CMD_STEP_1) = CMD_SDP_STEP_1;
*(UWORD *)(flashbase + ADDR_CMD_STEP_2) = CMD_SDP_STEP_2;
return;
}
/** kick_flash_erase_chip
*
* @brief Perform a chip erase
*/
void kick_flash_erase_chip() {
kick_flash_unlock_sdp();
kick_flash_command(CMD_ERASE);
kick_flash_unlock_sdp();
kick_flash_command(CMD_ERASE_CHIP);
kick_flash_poll(0);
}
/** kick_flash_poll
*
* @brief Poll the status bits at address, until they indicate that the operation has completed.
* @param address Address to poll
*/
void kick_flash_poll(ULONG address) {
address &= (FLASH_SIZE-1);
volatile UWORD *read1 = ((void *)flashbase + address);
volatile UWORD *read2 = ((void *)flashbase + address);
while (((*read1 & 1<<6) != (*read2 & 1<<6))) {;;}
}
/** kick_flash_init
*
* @brief Check the manufacturer id of the device, return manuf and dev id
* @param manuf Pointer to a UWORD that will be updated with the returned manufacturer id
* @param devid Pointer to a UWORD that will be updatet with the returned device id
* @return True if the manufacturer ID matches the expected value
*/
bool kick_flash_init(UWORD *manuf, UWORD *devid) {
bool ret = false;
UWORD manufId;
UWORD deviceId;
kick_flash_unlock_sdp();
kick_flash_command(CMD_ID_ENTRY);
manufId = *(UWORD *)flashbase;
deviceId = *(UWORD *)(flashbase + 2);
kick_flash_command(CMD_CFI_ID_EXIT);
if (manuf) *manuf = manufId;
if (devid) *devid = deviceId;
if (manufId == FLASH_MANUF) {
if (deviceId == FLASH_DEV_TOP) {
flash_bootbank = TOP;
ret = true;
} else if (deviceId == FLASH_DEV_BOTTOM) {
flash_bootbank = BOTTOM;
ret = true;
}
}
return (ret);
}
/** kick_flash_reset
*
* @brief Reset the flash to read mode
*/
void kick_flash_reset() {
kick_flash_command(CMD_READ_RESET);
}
/** kick_flash_erase_block
*
* @brief Erase a block of flash
* @param address Address of the block to erase
*/
void kick_flash_erase_block(ULONG address) {
address &= (ROM_1M - 1);
kick_flash_unlock_sdp();
kick_flash_command(CMD_ERASE);
kick_flash_unlock_sdp();
*(UWORD *)(flashbase + address) = CMD_ERASE_BLOCK;
}
/** kick_flash_erase_bank
*
* @brief Erase the specified bank, taking into account top/bottom boot blocks
* @param bank The bank number (0-3) to erase
*/
void kick_flash_erase_bank(int bank) {
ULONG block;
if (flash_bootbank == TOP && bank == 3) {
// Top of 29F160 consists of 32K+8K+8K+16K boot blocks
//
// Erase all of the 64K blocks + the 32K one
for (int i = 0; i < BANK_SIZE/BLOCK_SIZE; i++) {
block = (BANK_SIZE * bank) + (BLOCK_SIZE * i);
kick_flash_erase_block(block);
}
// Erase the smaller blocks
block += 32767;
kick_flash_erase_block(block);
block += 8192;
kick_flash_erase_block(block);
block += 8192;
kick_flash_erase_block(block);
} else if (flash_bootbank == BOTTOM && bank == 0) {
ULONG block = 0;
kick_flash_erase_block(block); // Erase 16K
block += 16384;
kick_flash_erase_block(block); // Erase 8K
block += 8192;
kick_flash_erase_block(block); // Erase 8K
block += 8192;
kick_flash_erase_block(block); // Erase 32K
// Erase the rest of the blocks
for (int i = 1; i < BANK_SIZE/BLOCK_SIZE; i++) {
block = (BANK_SIZE * bank) + (BLOCK_SIZE * i);
kick_flash_erase_block(block);
}
} else {
for (int i = 0; i < BANK_SIZE/BLOCK_SIZE; i++) {
block = (BANK_SIZE * bank) + (BLOCK_SIZE * i);
kick_flash_erase_block(block);
}
}
}

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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef KICK_FLASH_H
#define KICK_FLASH_H
#include <exec/types.h>
#include <stdbool.h>
void kick_flash_unlock_sdp();
void kick_flash_erase_chip();
void kick_flash_command(UWORD);
void kick_flash_writeWord(ULONG, UWORD);
bool kick_flash_init(UWORD *, UWORD *);
void kick_flash_poll(ULONG);
void kick_flash_reset();
void kick_flash_erase_bank(int);
void kick_flash_erase_block(ULONG);
#endif

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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef KICK_FLASH_CONSTANTS_H
#define KICK_FLASH_CONSTANTS_H
// Micron 29F160
#define FLASH_MANUF 0x0001
#define FLASH_DEV_TOP 0x22D2
#define FLASH_DEV_BOTTOM 0x22D8
#define BLOCK_SIZE 0x010000
#define BANK_SIZE 0x080000
#define BANK_SECTORS (BANK_SIZE / SECTOR_SIZE)
#define FLASH_SIZE 0x100000
#define FLASHBASE 0xA00000
// Command addresses left-shifted because Flash A0 = CPU A1
#define ADDR_CMD_STEP_1 (0x555 << 1)
#define ADDR_CMD_STEP_2 (0x2AA << 1)
#define CMD_SDP_STEP_1 0xAA
#define CMD_SDP_STEP_2 0x55
#define CMD_WORD_PROGRAM 0xA0
#define CMD_ERASE 0x80
#define CMD_ERASE_BLOCK 0x30
#define CMD_ERASE_CHIP 0x10
#define CMD_ID_ENTRY 0x90
#define CMD_CFI_ENTRY 0x98
#define CMD_CFI_ID_EXIT 0xF0
#define CMD_READ_RESET 0xF0
#endif

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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <exec/execbase.h>
#include <proto/exec.h>
#include <proto/expansion.h>
#include <string.h>
#include <stdio.h>
#include <stdbool.h>
#include <proto/dos.h>
#include <dos/dos.h>
#include "kick_flash.h"
#include "ide_flash.h"
#include "main.h"
#include "config.h"
#include "cider.h"
#include "constants.h"
#define MANUF_ID 2011
#define PROD_ID 74
#define IDE_PROD_ID 73
#define IDE_ROM_OFFSET 0x8000
struct Library *DosBase;
struct ExecBase *SysBase;
struct ExpansionBase *ExpansionBase = NULL;
UWORD *controlRegister;
extern void *flashbase;
int main(int argc, char *argv[])
{
SysBase = *((struct ExecBase **)4UL);
DosBase = OpenLibrary("dos.library",0);
int rc = 0;
if (DosBase == NULL) {
return(rc);
}
printf("CIDER FlashROM tool\n");
struct Config *config;
if ((config = configure(argc,argv)) != NULL) {
if ((ExpansionBase = (struct ExpansionBase *)OpenLibrary("expansion.library",0)) != NULL) {
struct ConfigDev *cd = NULL;
if ((cd = (struct ConfigDev*)FindConfigDev(NULL,MANUF_ID,PROD_ID))) {
controlRegister = cd->cd_BoardAddr;
selectBank(config->programBank);
if (!(*controlRegister & BONUSEN_BIT)) {
UWORD manufacturerId, deviceId;
bool check_device = kick_flash_init(&manufacturerId,&deviceId);
if (check_device == false && config->op != OP_IDENTIFY) {
printf("Error: Unknown Flash device Manufacturer: %04X Device: %04X\n", manufacturerId, deviceId);
printf("Check that ROM overlay is switched off and try again.\n");
} else {
switch (config->op) {
case OP_IDENTIFY:
printf("Manufacturer: %04X, Device: %04X\n",manufacturerId, deviceId);
break;
case OP_VERIFY:
if (config->source == SOURCE_ROM) {
rc = (verifyBank((ULONG *)0xF80000,config->programBank,ROM_512K)) ? 0 : 5;
} else {
rc = (verifyFile(config->ks_filename,config->programBank)) ? 0 : 5;
}
break;
case OP_ERASE_BANK:
erase_bank(config->programBank);
break;
case OP_ERASE_CHIP:
erase_chip();
break;
case OP_PROGRAM:
if (config->source == SOURCE_ROM) {
erase_bank(config->programBank);
printf("Copying Kickstart ROM to bank %d\n",(config->programBank == FLASH_BANK_0) ? 0 : 1);
copyBufToFlash((void *)0xF80000,config->programBank,ROM_512K,config->skipVerify);
} else {
ULONG romSize = 0;
printf("Flashing kick file %s\n",config->ks_filename);
if ((romSize = getFileSize(config->ks_filename)) != 0) {
if (romSize == ROM_256K || romSize == ROM_512K || romSize == ROM_1M) {
if (romSize == ROM_1M) {
erase_chip();
} else {
erase_bank(config->programBank);
}
if (romSize == ROM_1M) {
// Force Bank X0 for 1M rom as it will fill both banks.
copyFileToFlash(config->ks_filename,FLASH_BANK_0,romSize,config->skipVerify);
} else {
copyFileToFlash(config->ks_filename,config->programBank,romSize,config->skipVerify);
}
} else {
printf("Bad file size, 256K/512K/1M ROM required.\n");
rc = 5;
}
}
}
break;
case OP_NONE:
usage();
break;
}
}
} else {
printf("Bonus RAM must be disabled to program Flash.");
rc = 5;
}
} else {
printf("Couldn't find board with Manufacturer/Prod ID of %d:%d\n",MANUF_ID,PROD_ID);
rc = 5;
}
if (config->flash_ide_rom == true) {
struct ConfigDev *ide_configDev;
if ((ide_configDev = FindConfigDev(NULL,MANUF_ID,IDE_PROD_ID))) {
UBYTE manufId,devId;
if (ide_flash_init(&manufId,&devId,ide_configDev->cd_BoardAddr)) {
ULONG romSize = getFileSize(config->ide_rom_filename);
if (romSize <= (0x10000 - IDE_ROM_OFFSET)/2) {
APTR buffer = readFileToBuf(config->ide_rom_filename);
if (buffer) {
printf("Erasing IDE Flash...\n");
ide_flash_erase_chip();
int progress = 0;
int lastProgress = 1;
fprintf(stdout,"Writing IDE ROM: ");
fflush(stdout);
for (int i=0; i<romSize; i++) {
progress = (i*100)/romSize;
if (lastProgress != progress) {
fprintf(stdout,"\b\b\b\b%3d%%",progress);
fflush(stdout);
lastProgress = progress;
}
ide_flash_writeByte(i+IDE_ROM_OFFSET,*(UBYTE *)(buffer+i));
}
fprintf(stdout,"\n");
fflush(stdout);
if (buffer) FreeMem(buffer,romSize);
}
} else {
printf("File too large to fit IDE ROM\n");
}
} else {
printf("Error: IDE - Unknown Flash device Manufacturer: %02X Device: %02X\n", manufId, devId);
printf("Check that IDE is switched off and try again.\n");
}
} else {
printf("Could not find IDE board.\n");
}
}
} else {
printf("Couldn't open Expansion.library.\n");
rc = 5;
}
} else {
usage();
}
if (config) FreeMem(config,sizeof(struct Config));
if (ExpansionBase) CloseLibrary((struct Library *)ExpansionBase);
if (DosBase) CloseLibrary((struct Library *)DosBase);
return (rc);
}
/**
* erase_bank
*
* @brief Erase a bank
* @param bank Address of the bank to erase
*/
void erase_bank(ULONG bank) {
bank = bank >> 19;
printf("Erasing bank %d\n", (int)bank >> 19);
kick_flash_erase_bank(bank);
}
/**
* erase_chip
*
* @brief Completely erase the flash
*/
void erase_chip() {
printf("Erasing chip...");
kick_flash_erase_chip();
printf(" Done\n");
}
/**
* getFileSize
*
* @brief return the size of a file in bytes
* @param filename file to check the size of
* @returns File size in bytes
*/
ULONG getFileSize(char *filename) {
BPTR fileLock;
ULONG fileSize = 0;
struct FileInfoBlock *FIB;
FIB = (struct FileInfoBlock *)AllocMem(sizeof(struct FileInfoBlock),MEMF_CLEAR);
if ((fileLock = Lock(filename,ACCESS_READ)) != 0) {
if (Examine(fileLock,FIB)) {
fileSize = FIB->fib_Size;
}
} else {
printf("Error opening %s\n",filename);
}
if (fileLock) UnLock(fileLock);
if (FIB) FreeMem(FIB,sizeof(struct FileInfoBlock));
return (fileSize);
}
/**
* readFileToBuF
*
* @brief Read the rom file to a buffer
* @param filename Name of the file to open
* @return Pointer to a buffer
*/
APTR readFileToBuf(char *filename) {
ULONG romSize = getFileSize(filename);
if (romSize == 0) return NULL;
BPTR fh;
APTR buffer;
buffer = AllocMem(romSize,MEMF_ANY);
if (buffer) {
fh = Open(filename,MODE_OLDFILE);
if (fh) {
Read(fh,buffer,romSize);
Close(fh);
} else {
printf("Error opening %s\n",filename);
return NULL;
}
} else {
printf("Couldn't allocate memory.\n");
return NULL;
}
return buffer;
}
/**
* copyFileToFlash
*
* @brief Copy the contents of the specified file to the flash
* @param filename A pointer to the source buffer
* @param destination Bank address to write to
* @param romSize Size in bytes of the source
* @param skipVerify Skip verification
*/
void copyFileToFlash(char *filename, ULONG destination, ULONG romSize, bool skipVerify) {
APTR buffer;
if ((buffer = readFileToBuf(filename)) != NULL) {
copyBufToFlash(buffer,destination,romSize,skipVerify);
FreeMem(buffer,romSize);
}
return;
}
/**
* copyBufToFlash
*
* @brief Copy the contents of the buffer to the flash
* @param source A pointer to the source buffer
* @param destination Bank address to write to
* @param romSize Size in bytes of the source
* @param skipVerify Skip verification
*/
void copyBufToFlash(ULONG *source, ULONG destination, ULONG romSize, bool skipVerify) {
int progress = 0;
int lastProgress = 1;
UWORD *sourcePtr = NULL;
ULONG byteCount = (romSize == ROM_256K) ? ROM_512K : romSize; // For 256K ROMs fill up a 512K bank
fprintf(stdout,"Writing: ");
fflush(stdout);
for (ULONG i=0; i<byteCount; i+=2) {
sourcePtr = ((void *)source + (i % romSize)); // Loop the source address around when programming 256K
progress = i*100/(byteCount-2);
if (lastProgress != progress) {
fprintf(stdout,"\b\b\b\b%3d%%",progress);
fflush(stdout);
lastProgress = progress;
}
kick_flash_writeWord(destination+i,*sourcePtr);
}
printf("\n");
if (skipVerify == false) {
verifyBank(source,destination,romSize);
}
}
/** verifyBank
*
* @brief compare the specified bank with a buffer
* @returns success
* @param source A pointer to the source buffer
* @param bank The bank address to compare
*/
bool verifyBank(ULONG *source, ULONG bank, ULONG romSize) {
fprintf(stdout,"Verifying: ");
fflush(stdout);
ULONG progress = 0;
ULONG lastProgress = 1;
UWORD flash_data = 0;
ULONG flash_address = 0;
UWORD source_data = 0;
ULONG byteCount = (romSize == ROM_256K) ? ROM_512K : romSize; // For 256K ROMs fill up a 512K bank
for (ULONG i=0; i<byteCount; i+=2) {
progress = i*100/(byteCount-2);
if (lastProgress != progress) {
fprintf(stdout,"\b\b\b\b%3d%%",(int)progress);
fflush(stdout);
lastProgress = progress;
}
flash_address = (ULONG)flashbase + bank + i;
flash_data = *(UWORD *)(void *)flash_address;
source_data = *(UWORD *)((void *)source + (i % romSize)); // Loop the source address around when programming 256K
if (flash_data != source_data) {
printf("\nVerification failed at %06x - Expected %04X but read %04X\n",(int)flash_address,source_data,flash_data);
return false;
}
}
printf("\n");
return true;
}
/**
* verifyFile
*
* @brief Compare the specified bank with a file
* @returns success
* @param filename Filename
* @param bank Bank address to compare
*/
bool verifyFile(char *filename, ULONG bank) {
ULONG romSize;
APTR buffer;
bool success = false;
if ((romSize = getFileSize(filename)) != 0) {
if (romSize == ROM_256K || romSize == ROM_512K || romSize == ROM_1M) {
if ((buffer = readFileToBuf(filename)) != NULL) {
if (romSize == ROM_1M) bank = FLASH_BANK_0;
success = verifyBank(buffer,bank,romSize);
FreeMem(buffer,romSize);
}
} else {
printf("Bad file size, 256K/512K/1M ROM required.\n");
return false;
}
} else {
return false;
}
return success;
}
/**
* selectBank
*
* @brief Set the high/low 1MB bank of the Flash chip
* @param bank Bank address to select
*/
void selectBank(ULONG bank) {
bank = bank >> 19;
if (bank > 1) {
*controlRegister = SET_BANKBIT;
} else {
*controlRegister = CLR_BANKBIT;
}
}

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// SPDX-License-Identifier: GPL-2.0-only
/* This file is part of cflash
* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
*
* 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; version 2.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef MAIN_H
#define MAIN_H
#undef FindConfigDev
// NDK 1.3 definition of FindConfigDev is incorrect which causes "makes pointer from integer without a cast" warning
struct ConfigDev* FindConfigDev(struct ConfigDev*, LONG, LONG);
ULONG getFileSize(char *);
void copyFileToFlash(char *, ULONG, ULONG, bool);
void copyBufToFlash(ULONG *, ULONG, ULONG, bool);
void erase_bank(ULONG);
void erase_chip();
bool verifyBank(ULONG *, ULONG, ULONG);
bool verifyFile(char *, ULONG);
APTR readFileToBuf(char *);
void selectBank(ULONG);
#endif