mirror of
https://github.com/eledio-devices/thirdparty-littlefs.git
synced 2025-10-31 08:42:40 +01:00
Generated v2 prefixes
This commit is contained in:
geky bot
302
bd/lfs2_testbd.c
Normal file
302
bd/lfs2_testbd.c
Normal file
@@ -0,0 +1,302 @@
|
||||
/*
|
||||
* Testing block device, wraps filebd and rambd while providing a bunch
|
||||
* of hooks for testing littlefs in various conditions.
|
||||
*
|
||||
* Copyright (c) 2017, Arm Limited. All rights reserved.
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
*/
|
||||
#include "bd/lfs2_testbd.h"
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
|
||||
int lfs2_testbd_createcfg(const struct lfs2_config *cfg, const char *path,
|
||||
const struct lfs2_testbd_config *bdcfg) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_createcfg(%p {.context=%p, "
|
||||
".read=%p, .prog=%p, .erase=%p, .sync=%p, "
|
||||
".read_size=%"PRIu32", .prog_size=%"PRIu32", "
|
||||
".block_size=%"PRIu32", .block_count=%"PRIu32"}, "
|
||||
"\"%s\", "
|
||||
"%p {.erase_value=%"PRId32", .erase_cycles=%"PRIu32", "
|
||||
".badblock_behavior=%"PRIu8", .power_cycles=%"PRIu32", "
|
||||
".buffer=%p, .wear_buffer=%p})",
|
||||
(void*)cfg, cfg->context,
|
||||
(void*)(uintptr_t)cfg->read, (void*)(uintptr_t)cfg->prog,
|
||||
(void*)(uintptr_t)cfg->erase, (void*)(uintptr_t)cfg->sync,
|
||||
cfg->read_size, cfg->prog_size, cfg->block_size, cfg->block_count,
|
||||
path, (void*)bdcfg, bdcfg->erase_value, bdcfg->erase_cycles,
|
||||
bdcfg->badblock_behavior, bdcfg->power_cycles,
|
||||
bdcfg->buffer, bdcfg->wear_buffer);
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
bd->cfg = bdcfg;
|
||||
|
||||
// setup testing things
|
||||
bd->persist = path;
|
||||
bd->power_cycles = bd->cfg->power_cycles;
|
||||
|
||||
if (bd->cfg->erase_cycles) {
|
||||
if (bd->cfg->wear_buffer) {
|
||||
bd->wear = bd->cfg->wear_buffer;
|
||||
} else {
|
||||
bd->wear = lfs2_malloc(sizeof(lfs2_testbd_wear_t)*cfg->block_count);
|
||||
if (!bd->wear) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_createcfg -> %d", LFS2_ERR_NOMEM);
|
||||
return LFS2_ERR_NOMEM;
|
||||
}
|
||||
}
|
||||
|
||||
memset(bd->wear, 0, sizeof(lfs2_testbd_wear_t) * cfg->block_count);
|
||||
}
|
||||
|
||||
// create underlying block device
|
||||
if (bd->persist) {
|
||||
bd->u.file.cfg = (struct lfs2_filebd_config){
|
||||
.erase_value = bd->cfg->erase_value,
|
||||
};
|
||||
int err = lfs2_filebd_createcfg(cfg, path, &bd->u.file.cfg);
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_createcfg -> %d", err);
|
||||
return err;
|
||||
} else {
|
||||
bd->u.ram.cfg = (struct lfs2_rambd_config){
|
||||
.erase_value = bd->cfg->erase_value,
|
||||
.buffer = bd->cfg->buffer,
|
||||
};
|
||||
int err = lfs2_rambd_createcfg(cfg, &bd->u.ram.cfg);
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_createcfg -> %d", err);
|
||||
return err;
|
||||
}
|
||||
}
|
||||
|
||||
int lfs2_testbd_create(const struct lfs2_config *cfg, const char *path) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_create(%p {.context=%p, "
|
||||
".read=%p, .prog=%p, .erase=%p, .sync=%p, "
|
||||
".read_size=%"PRIu32", .prog_size=%"PRIu32", "
|
||||
".block_size=%"PRIu32", .block_count=%"PRIu32"}, "
|
||||
"\"%s\")",
|
||||
(void*)cfg, cfg->context,
|
||||
(void*)(uintptr_t)cfg->read, (void*)(uintptr_t)cfg->prog,
|
||||
(void*)(uintptr_t)cfg->erase, (void*)(uintptr_t)cfg->sync,
|
||||
cfg->read_size, cfg->prog_size, cfg->block_size, cfg->block_count,
|
||||
path);
|
||||
static const struct lfs2_testbd_config defaults = {.erase_value=-1};
|
||||
int err = lfs2_testbd_createcfg(cfg, path, &defaults);
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_create -> %d", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
int lfs2_testbd_destroy(const struct lfs2_config *cfg) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_destroy(%p)", (void*)cfg);
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
if (bd->cfg->erase_cycles && !bd->cfg->wear_buffer) {
|
||||
lfs2_free(bd->wear);
|
||||
}
|
||||
|
||||
if (bd->persist) {
|
||||
int err = lfs2_filebd_destroy(cfg);
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_destroy -> %d", err);
|
||||
return err;
|
||||
} else {
|
||||
int err = lfs2_rambd_destroy(cfg);
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_destroy -> %d", err);
|
||||
return err;
|
||||
}
|
||||
}
|
||||
|
||||
/// Internal mapping to block devices ///
|
||||
static int lfs2_testbd_rawread(const struct lfs2_config *cfg, lfs2_block_t block,
|
||||
lfs2_off_t off, void *buffer, lfs2_size_t size) {
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
if (bd->persist) {
|
||||
return lfs2_filebd_read(cfg, block, off, buffer, size);
|
||||
} else {
|
||||
return lfs2_rambd_read(cfg, block, off, buffer, size);
|
||||
}
|
||||
}
|
||||
|
||||
static int lfs2_testbd_rawprog(const struct lfs2_config *cfg, lfs2_block_t block,
|
||||
lfs2_off_t off, const void *buffer, lfs2_size_t size) {
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
if (bd->persist) {
|
||||
return lfs2_filebd_prog(cfg, block, off, buffer, size);
|
||||
} else {
|
||||
return lfs2_rambd_prog(cfg, block, off, buffer, size);
|
||||
}
|
||||
}
|
||||
|
||||
static int lfs2_testbd_rawerase(const struct lfs2_config *cfg,
|
||||
lfs2_block_t block) {
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
if (bd->persist) {
|
||||
return lfs2_filebd_erase(cfg, block);
|
||||
} else {
|
||||
return lfs2_rambd_erase(cfg, block);
|
||||
}
|
||||
}
|
||||
|
||||
static int lfs2_testbd_rawsync(const struct lfs2_config *cfg) {
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
if (bd->persist) {
|
||||
return lfs2_filebd_sync(cfg);
|
||||
} else {
|
||||
return lfs2_rambd_sync(cfg);
|
||||
}
|
||||
}
|
||||
|
||||
/// block device API ///
|
||||
int lfs2_testbd_read(const struct lfs2_config *cfg, lfs2_block_t block,
|
||||
lfs2_off_t off, void *buffer, lfs2_size_t size) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_read(%p, "
|
||||
"0x%"PRIx32", %"PRIu32", %p, %"PRIu32")",
|
||||
(void*)cfg, block, off, buffer, size);
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
|
||||
// check if read is valid
|
||||
LFS2_ASSERT(off % cfg->read_size == 0);
|
||||
LFS2_ASSERT(size % cfg->read_size == 0);
|
||||
LFS2_ASSERT(block < cfg->block_count);
|
||||
|
||||
// block bad?
|
||||
if (bd->cfg->erase_cycles && bd->wear[block] >= bd->cfg->erase_cycles &&
|
||||
bd->cfg->badblock_behavior == LFS2_TESTBD_BADBLOCK_READERROR) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_read -> %d", LFS2_ERR_CORRUPT);
|
||||
return LFS2_ERR_CORRUPT;
|
||||
}
|
||||
|
||||
// read
|
||||
int err = lfs2_testbd_rawread(cfg, block, off, buffer, size);
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_read -> %d", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
int lfs2_testbd_prog(const struct lfs2_config *cfg, lfs2_block_t block,
|
||||
lfs2_off_t off, const void *buffer, lfs2_size_t size) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_prog(%p, "
|
||||
"0x%"PRIx32", %"PRIu32", %p, %"PRIu32")",
|
||||
(void*)cfg, block, off, buffer, size);
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
|
||||
// check if write is valid
|
||||
LFS2_ASSERT(off % cfg->prog_size == 0);
|
||||
LFS2_ASSERT(size % cfg->prog_size == 0);
|
||||
LFS2_ASSERT(block < cfg->block_count);
|
||||
|
||||
// block bad?
|
||||
if (bd->cfg->erase_cycles && bd->wear[block] >= bd->cfg->erase_cycles) {
|
||||
if (bd->cfg->badblock_behavior ==
|
||||
LFS2_TESTBD_BADBLOCK_PROGERROR) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_prog -> %d", LFS2_ERR_CORRUPT);
|
||||
return LFS2_ERR_CORRUPT;
|
||||
} else if (bd->cfg->badblock_behavior ==
|
||||
LFS2_TESTBD_BADBLOCK_PROGNOOP ||
|
||||
bd->cfg->badblock_behavior ==
|
||||
LFS2_TESTBD_BADBLOCK_ERASENOOP) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_prog -> %d", 0);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
// prog
|
||||
int err = lfs2_testbd_rawprog(cfg, block, off, buffer, size);
|
||||
if (err) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_prog -> %d", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
// lose power?
|
||||
if (bd->power_cycles > 0) {
|
||||
bd->power_cycles -= 1;
|
||||
if (bd->power_cycles == 0) {
|
||||
// sync to make sure we persist the last changes
|
||||
assert(lfs2_testbd_rawsync(cfg) == 0);
|
||||
// simulate power loss
|
||||
exit(33);
|
||||
}
|
||||
}
|
||||
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_prog -> %d", 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lfs2_testbd_erase(const struct lfs2_config *cfg, lfs2_block_t block) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_erase(%p, 0x%"PRIx32")", (void*)cfg, block);
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
|
||||
// check if erase is valid
|
||||
LFS2_ASSERT(block < cfg->block_count);
|
||||
|
||||
// block bad?
|
||||
if (bd->cfg->erase_cycles) {
|
||||
if (bd->wear[block] >= bd->cfg->erase_cycles) {
|
||||
if (bd->cfg->badblock_behavior ==
|
||||
LFS2_TESTBD_BADBLOCK_ERASEERROR) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_erase -> %d", LFS2_ERR_CORRUPT);
|
||||
return LFS2_ERR_CORRUPT;
|
||||
} else if (bd->cfg->badblock_behavior ==
|
||||
LFS2_TESTBD_BADBLOCK_ERASENOOP) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_erase -> %d", 0);
|
||||
return 0;
|
||||
}
|
||||
} else {
|
||||
// mark wear
|
||||
bd->wear[block] += 1;
|
||||
}
|
||||
}
|
||||
|
||||
// erase
|
||||
int err = lfs2_testbd_rawerase(cfg, block);
|
||||
if (err) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_erase -> %d", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
// lose power?
|
||||
if (bd->power_cycles > 0) {
|
||||
bd->power_cycles -= 1;
|
||||
if (bd->power_cycles == 0) {
|
||||
// sync to make sure we persist the last changes
|
||||
assert(lfs2_testbd_rawsync(cfg) == 0);
|
||||
// simulate power loss
|
||||
exit(33);
|
||||
}
|
||||
}
|
||||
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_prog -> %d", 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lfs2_testbd_sync(const struct lfs2_config *cfg) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_sync(%p)", (void*)cfg);
|
||||
int err = lfs2_testbd_rawsync(cfg);
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_sync -> %d", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
/// simulated wear operations ///
|
||||
lfs2_testbd_swear_t lfs2_testbd_getwear(const struct lfs2_config *cfg,
|
||||
lfs2_block_t block) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_getwear(%p, %"PRIu32")", (void*)cfg, block);
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
|
||||
// check if block is valid
|
||||
LFS2_ASSERT(bd->cfg->erase_cycles);
|
||||
LFS2_ASSERT(block < cfg->block_count);
|
||||
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_getwear -> %"PRIu32, bd->wear[block]);
|
||||
return bd->wear[block];
|
||||
}
|
||||
|
||||
int lfs2_testbd_setwear(const struct lfs2_config *cfg,
|
||||
lfs2_block_t block, lfs2_testbd_wear_t wear) {
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_setwear(%p, %"PRIu32")", (void*)cfg, block);
|
||||
lfs2_testbd_t *bd = cfg->context;
|
||||
|
||||
// check if block is valid
|
||||
LFS2_ASSERT(bd->cfg->erase_cycles);
|
||||
LFS2_ASSERT(block < cfg->block_count);
|
||||
|
||||
bd->wear[block] = wear;
|
||||
|
||||
LFS2_TESTBD_TRACE("lfs2_testbd_setwear -> %d", 0);
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user