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fc-fsio: guard against bogus readdir results from the target If the FFS being operated on contains SE K2x0 extended filenames, readdir will return strings that are bad for printing. We need to guard against this possibility, and also against possible other bogosity that could be sent by other alien firmwares.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 31 Dec 2022 22:55:23 +0000
parents 54a0bc149d9c
children 7c18eac91457
line wrap: on
line source

/*
 * This module holds the tables of supported flash devices
 */

#include <stdint.h>
#include "flash.h"

extern struct flash_cmdset flash_cmdset_amd;
extern struct flash_cmdset flash_cmdset_intel;
extern struct flash_cmdset flash_cmdset_intel_w30;

/* flash bank geometries */

static struct flash_geom geom_2M_topboot = {
	.total_size	= 0x200000,
	.nregions	= 2,
	.regions	= {0x10000, 31, 0x2000, 8},
	.total_sectors	= 39,
};

static struct flash_geom geom_4M_topboot = {
	.total_size	= 0x400000,
	.nregions	= 2,
	.regions	= {0x10000, 63, 0x2000, 8},
	.total_sectors	= 71,
};

static struct flash_geom geom_4M_bothends = {
	.total_size	= 0x400000,
	.nregions	= 3,
	.regions	= {0x2000, 8, 0x10000, 62, 0x2000, 8},
	.total_sectors	= 78,
};

static struct flash_geom geom_8M_topboot = {
	.total_size	= 0x800000,
	.nregions	= 2,
	.regions	= {0x10000, 127, 0x2000, 8},
	.total_sectors	= 135,
};

static struct flash_geom geom_8M_bottomboot = {
	.total_size	= 0x800000,
	.nregions	= 2,
	.regions	= {0x2000, 8, 0x10000, 127},
	.total_sectors	= 135,
};

static struct flash_geom geom_8M_bothends = {
	.total_size	= 0x800000,
	.nregions	= 3,
	.regions	= {0x2000, 8, 0x10000, 126, 0x2000, 8},
	.total_sectors	= 142,
};

static struct flash_geom geom_8M_topboot_big = {
	.total_size	= 0x800000,
	.nregions	= 2,
	.regions	= {0x40000, 31, 0x10000, 4},
	.total_sectors	= 35,
};

static struct flash_geom geom_8M_bottomboot_big = {
	.total_size	= 0x800000,
	.nregions	= 2,
	.regions	= {0x10000, 4, 0x40000, 31},
	.total_sectors	= 35,
};

/* Intel and compatible flash chips */

static struct cfi_check intel_2M_topboot_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x03},
	{0x14, 0x00},
	{0x27, 0x15},
	{0x2C, 0x02},
	{0x2D, 0x1E},
	{0x2E, 0x00},
	{0x2F, 0x00},
	{0x30, 0x01},
	{0x31, 0x07},
	{0x32, 0x00},
	{0x33, 0x20},
	{0x34, 0x00},
	{-1,   0}
};

static struct cfi_check intel_4M_topboot_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x03},
	{0x14, 0x00},
	{0x27, 0x16},
	{0x2C, 0x02},
	{0x2D, 0x3E},
	{0x2E, 0x00},
	{0x2F, 0x00},
	{0x30, 0x01},
	{0x31, 0x07},
	{0x32, 0x00},
	{0x33, 0x20},
	{0x34, 0x00},
	{-1,   0}
};

static struct cfi_check intel_8M_topboot_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x03},
	{0x14, 0x00},
	{0x27, 0x17},
	{0x2C, 0x02},
	{0x2D, 0x7E},
	{0x2E, 0x00},
	{0x2F, 0x00},
	{0x30, 0x01},
	{0x31, 0x07},
	{0x32, 0x00},
	{0x33, 0x20},
	{0x34, 0x00},
	{-1,   0}
};

static struct cfi_check intel_8M_bottomboot_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x03},
	{0x14, 0x00},
	{0x27, 0x17},
	{0x2C, 0x02},
	{0x2D, 0x07},
	{0x2E, 0x00},
	{0x2F, 0x20},
	{0x30, 0x00},
	{0x31, 0x7E},
	{0x32, 0x00},
	{0x33, 0x00},
	{0x34, 0x01},
	{-1,   0}
};

struct flash_device flashdev_28F160C3T = {
	.name			= "Intel 28F160C3T",
	.cfi_table		= intel_2M_topboot_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_4M,
	.bank_geom		= {&geom_2M_topboot, 0},
	.cmdset			= &flash_cmdset_intel,
};

struct flash_device flashdev_28F320C3T = {
	.name			= "Intel 28F320C3T",
	.cfi_table		= intel_4M_topboot_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_4M,
	.bank_geom		= {&geom_4M_topboot, 0},
	.cmdset			= &flash_cmdset_intel,
};

struct flash_device flashdev_28F640C3T = {
	.name			= "Intel 28F640C3T",
	.cfi_table		= intel_8M_topboot_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_8M,
	.bank_geom		= {&geom_8M_topboot, 0},
	.cmdset			= &flash_cmdset_intel,
};

struct flash_device flashdev_28F640C3B = {
	.name			= "Intel 28F640C3B",
	.cfi_table		= intel_8M_bottomboot_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_8M,
	.bank_geom		= {&geom_8M_bottomboot, 0},
	.cmdset			= &flash_cmdset_intel,
};

struct flash_device flashdev_28F640W30T = {
	.name			= "Intel 28F640W30T",
	.cfi_table		= intel_8M_topboot_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_8M,
	.bank_geom		= {&geom_8M_topboot, 0},
	.cmdset			= &flash_cmdset_intel_w30,
};

struct flash_device flashdev_28F640W30B = {
	.name			= "Intel 28F640W30B",
	.cfi_table		= intel_8M_bottomboot_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_8M,
	.bank_geom		= {&geom_8M_bottomboot, 0},
	.cmdset			= &flash_cmdset_intel_w30,
};

/* classic AMD flash chips */

static struct cfi_check Am29DL640G_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x02},
	{0x14, 0x00},
	{0x15, 0x40},
	{0x16, 0x00},
	{0x27, 0x17},
	{0x2C, 0x03},
	{0x2D, 0x07},
	{0x2E, 0x00},
	{0x2F, 0x20},
	{0x30, 0x00},
	{0x31, 0x7D},
	{0x32, 0x00},
	{0x33, 0x00},
	{0x34, 0x01},
	{0x35, 0x07},
	{0x36, 0x00},
	{0x37, 0x20},
	{0x38, 0x00},
	{0x40, 'P'},
	{0x41, 'R'},
	{0x42, 'I'},
	{0x43, '1'},
	{0x44, '3'},
	{-1,   0}
};

struct flash_device flashdev_Am29DL640G = {
	.name			= "Am29DL640G",
	.cfi_table		= Am29DL640G_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_8M,
	.bank_geom		= {&geom_8M_bothends, 0},
	.cmdset			= &flash_cmdset_amd,
};

/* Spansion S71PL-J and S71PL-N flash */

static struct cfi_check spansion_PL032J_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x02},
	{0x14, 0x00},
	{0x15, 0x40},
	{0x16, 0x00},
	{0x27, 0x16},
	{0x2C, 0x03},
	{0x2D, 0x07},
	{0x2E, 0x00},
	{0x2F, 0x20},
	{0x30, 0x00},
	{0x31, 0x3D},
	{0x32, 0x00},
	{0x33, 0x00},
	{0x34, 0x01},
	{0x35, 0x07},
	{0x36, 0x00},
	{0x37, 0x20},
	{0x38, 0x00},
	{0x40, 'P'},
	{0x41, 'R'},
	{0x42, 'I'},
	{0x43, '1'},
	{0x44, '3'},
	{-1,   0}
};

struct flash_device flashdev_PL032J = {
	.name			= "Spansion S29PL032J",
	.cfi_table		= spansion_PL032J_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_4M,
	.bank_geom		= {&geom_4M_bothends, 0},
	.cmdset			= &flash_cmdset_amd,
};

/* S29PL064J/S71PL064J is identical to Am29DL640G covered above */

static struct cfi_check spansion_PL129J_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x02},
	{0x14, 0x00},
	{0x15, 0x40},
	{0x16, 0x00},
	{0x27, 0x18},
	{0x2C, 0x03},
	{0x2D, 0x07},
	{0x2E, 0x00},
	{0x2F, 0x20},
	{0x30, 0x00},
	{0x31, 0xFD},
	{0x32, 0x00},
	{0x33, 0x00},
	{0x34, 0x01},
	{0x35, 0x07},
	{0x36, 0x00},
	{0x37, 0x20},
	{0x38, 0x00},
	{0x40, 'P'},
	{0x41, 'R'},
	{0x42, 'I'},
	{0x43, '1'},
	{0x44, '3'},
	{-1,   0}
};

struct flash_device flashdev_PL129J = {
	.name			= "Spansion S29PL129J",
	.cfi_table		= spansion_PL129J_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_DUAL_8M,
	.bank_geom		= {&geom_8M_bottomboot, &geom_8M_topboot},
	.cmdset			= &flash_cmdset_amd,
};

static struct cfi_check spansion_PL129N_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x02},
	{0x14, 0x00},
	{0x15, 0x40},
	{0x16, 0x00},
	{0x27, 0x18},
	{0x2C, 0x03},
	{0x2D, 0x03},
	{0x2E, 0x00},
	{0x2F, 0x00},
	{0x30, 0x01},
	{0x31, 0x3D},
	{0x32, 0x00},
	{0x33, 0x00},
	{0x34, 0x04},
	{0x35, 0x03},
	{0x36, 0x00},
	{0x37, 0x00},
	{0x38, 0x01},
	{0x40, 'P'},
	{0x41, 'R'},
	{0x42, 'I'},
	{0x43, '1'},
	{0x44, '4'},
	{-1,   0}
};

struct flash_device flashdev_PL129N = {
	.name			= "Spansion S29PL129N",
	.cfi_table		= spansion_PL129N_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_DUAL_8M,
	.bank_geom		= {&geom_8M_bottomboot_big,
				   &geom_8M_topboot_big},
	.cmdset			= &flash_cmdset_amd,
};

/* Samsung K5A32xxCTM introduced onto the scene by Openmoko */

static struct cfi_check samsung_4M_topboot_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x02},
	{0x14, 0x00},
	{0x15, 0x40},
	{0x16, 0x00},
	{0x27, 0x16},
	{0x2C, 0x02},
	{0x2D, 0x07},
	{0x2E, 0x00},
	{0x2F, 0x20},
	{0x30, 0x00},
	{0x31, 0x3E},
	{0x32, 0x00},
	{0x33, 0x00},
	{0x34, 0x01},
	{0x40, 'P'},
	{0x41, 'R'},
	{0x42, 'I'},
	{0x43, '3'},
	{0x44, '3'},
	{0x4F, 0x03},
	{-1,   0}
};

struct flash_device flashdev_K5A32xx_T = {
	.name			= "Samsung K5A32xx_T",
	.cfi_table		= samsung_4M_topboot_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_4M,
	.bank_geom		= {&geom_4M_topboot, 0},
	.cmdset			= &flash_cmdset_amd,
};

/* a different 4 MiB Samsung flash chip used in Huawei GTM900 */

static struct cfi_check samsung_4M_bothends_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x02},
	{0x14, 0x00},
	{0x15, 0x40},
	{0x16, 0x00},
	{0x27, 0x16},
	{0x2C, 0x03},
	{0x2D, 0x07},
	{0x2E, 0x00},
	{0x2F, 0x20},
	{0x30, 0x00},
	{0x31, 0x3D},
	{0x32, 0x00},
	{0x33, 0x00},
	{0x34, 0x01},
	{0x35, 0x07},
	{0x36, 0x00},
	{0x37, 0x20},
	{0x38, 0x00},
	{0x40, 'P'},
	{0x41, 'R'},
	{0x42, 'I'},
	{0x43, '0'},
	{0x44, '0'},
	{0x4F, 0x04},
	{-1,   0}
};

struct flash_device flashdev_K5L33xx_A = {
	.name			= "Samsung K5L33xx_A",
	.cfi_table		= samsung_4M_bothends_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_SINGLE_4M,
	.bank_geom		= {&geom_4M_bothends, 0},
	.cmdset			= &flash_cmdset_amd,
};

/* Samsung equivalent of S71PL129J, found in Sony Ericsson K200/220 phones */

static struct cfi_check samsung_PL129J_equiv_cfi[] = {
	{0x10, 'Q'},
	{0x11, 'R'},
	{0x12, 'Y'},
	{0x13, 0x02},
	{0x14, 0x00},
	{0x15, 0x40},
	{0x16, 0x00},
	{0x27, 0x18},
	{0x2C, 0x03},
	{0x2D, 0x07},
	{0x2E, 0x00},
	{0x2F, 0x20},
	{0x30, 0x00},
	{0x31, 0xFD},
	{0x32, 0x00},
	{0x33, 0x00},
	{0x34, 0x01},
	{0x35, 0x07},
	{0x36, 0x00},
	{0x37, 0x20},
	{0x38, 0x00},
	{0x40, 'P'},
	{0x41, 'R'},
	{0x42, 'I'},
	{0x43, '0'},
	{0x44, '0'},
	{0x4F, 0x04},
	{-1,   0}
};

struct flash_device flashdev_K5L29xx_A = {
	.name			= "Samsung K5L29xx_A",
	.cfi_table		= samsung_PL129J_equiv_cfi,
	.required_global_config	= FLASH_GLOBAL_CFG_DUAL_8M,
	.bank_geom		= {&geom_8M_bottomboot, &geom_8M_topboot},
	.cmdset			= &flash_cmdset_amd,
};