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Make LFS size adjustable. Breaking change as default is 0x8000 (16Kbytes).

Browse Source 
New commands:
lfssize - log size
lfssize 0x10000 - configure size
lfsunmount
lfsmount
lfsformat - reformat at current size
lfsformat 0x18000 - configre size and format lfs.

lfs size is stored in devcie config.
The main benefit of this is if a small LFS is used, it does not get overwritten when doing OTA.
Also, if it DOES, you can still backup and restore, which will be faster with a smaller area.
You still have the option for up to 0x80000 - 512 kbytes.
This commit is contained in:
btsimonh
2022-11-01 07:42:53 +00:00
parent 07ab6f6bd0
commit f74a49c08d
7 changed files with 244 additions and 19 deletions
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48
src/httpserver/rest_interface.c
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@ -55,7 +55,7 @@ static int http_rest_post_lfs_file(http_request_t* request);
static int http_favicon(http_request_t* request);
static int http_rest_post_reboot(http_request_t* request);
static int http_rest_post_flash(http_request_t* request, int startaddr);
static int http_rest_post_flash(http_request_t* request, int startaddr, int maxaddr);
static int http_rest_get_flash(http_request_t* request, int startaddr, int len);
static int http_rest_get_flash_advanced(http_request_t* request);
static int http_rest_post_flash_advanced(http_request_t* request);
@ -166,7 +166,22 @@ static int http_rest_get(http_request_t* request) {
#ifdef BK_LITTLEFS
if (!strcmp(request->url, "api/fsblock")) {
return http_rest_get_flash(request, LFS_BLOCKS_START, LFS_BLOCKS_LEN);
uint32_t newsize = CFG_GetLFS_Size();
uint32_t newstart = (LFS_BLOCKS_END - newsize);
newsize = (newsize/LFS_BLOCK_SIZE)*LFS_BLOCK_SIZE;
// double check again that we're within bounds - don't want
// boot overwrite or anything nasty....
if (newstart < LFS_BLOCKS_START_MIN){
return http_rest_error(request, -20, "LFS Size mismatch");
}
if ((newstart + newsize > LFS_BLOCKS_END) ||
(newstart + newsize < LFS_BLOCKS_START_MIN)){
return http_rest_error(request, -20, "LFS Size mismatch");
}
return http_rest_get_flash(request, newstart, newsize);
}
#endif
@ -225,9 +240,9 @@ static int http_rest_post(http_request_t* request) {
}
if (!strcmp(request->url, "api/ota")) {
#if PLATFORM_BK7231T
return http_rest_post_flash(request, START_ADR_OF_BK_PARTITION_OTA);
return http_rest_post_flash(request, START_ADR_OF_BK_PARTITION_OTA, LFS_BLOCKS_END);
#elif PLATFORM_BK7231N
return http_rest_post_flash(request, START_ADR_OF_BK_PARTITION_OTA);
return http_rest_post_flash(request, START_ADR_OF_BK_PARTITION_OTA, LFS_BLOCKS_END);
#else
// TODO
#endif
@ -246,8 +261,23 @@ static int http_rest_post(http_request_t* request) {
if (lfs_present()) {
release_lfs();
}
uint32_t newsize = CFG_GetLFS_Size();
uint32_t newstart = (LFS_BLOCKS_END - newsize);
newsize = (newsize/LFS_BLOCK_SIZE)*LFS_BLOCK_SIZE;
// double check again that we're within bounds - don't want
// boot overwrite or anything nasty....
if (newstart < LFS_BLOCKS_START_MIN){
return http_rest_error(request, -20, "LFS Size mismatch");
}
if ((newstart + newsize > LFS_BLOCKS_END) ||
(newstart + newsize < LFS_BLOCKS_START_MIN)){
return http_rest_error(request, -20, "LFS Size mismatch");
}
// we are writing the lfs block
int res = http_rest_post_flash(request, LFS_BLOCKS_START);
int res = http_rest_post_flash(request, newstart, LFS_BLOCKS_END);
// initialise the filesystem, it should be there now.
// don't create if it does not mount
init_lfs(0);
@ -866,7 +896,7 @@ static int http_rest_error(http_request_t* request, int code, char* msg) {
}
static int http_rest_post_flash(http_request_t* request, int startaddr) {
static int http_rest_post_flash(http_request_t* request, int startaddr, int maxaddr) {
#if PLATFORM_XR809
#elif PLATFORM_BL602
@ -890,7 +920,7 @@ static int http_rest_post_flash(http_request_t* request, int startaddr) {
towrite = request->contentLength;
}
if (writelen < 0 || (startaddr + writelen > 0x200000)) {
if (writelen < 0 || (startaddr + writelen > maxaddr)) {
ADDLOG_DEBUG(LOG_FEATURE_API, "ABORTED: %d bytes to write", writelen);
return http_rest_error(request, -20, "writelen < 0 or end > 0x200000");
}
@ -899,6 +929,7 @@ static int http_rest_post_flash(http_request_t* request, int startaddr) {
//ADDLOG_DEBUG(LOG_FEATURE_API, "%d bytes to write", writelen);
add_otadata((unsigned char*)writebuf, writelen);
total += writelen;
startaddr += writelen;
towrite -= writelen;
if (towrite > 0) {
writebuf = request->received;
@ -945,7 +976,8 @@ static int http_rest_post_flash_advanced(http_request_t* request) {
int sres;
sres = sscanf(params, "%x", &startaddr);
if (sres == 1 && startaddr >= START_ADR_OF_BK_PARTITION_OTA) {
return http_rest_post_flash(request, startaddr);
// allow up to end of flash
return http_rest_post_flash(request, startaddr, 0x200000);
}
return http_rest_error(request, -1, "invalid url");
}