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btstack_tlv_flash_sector: assert hal_flash_sector->get_alignment is satisfied

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This commit is contained in:
Matthias Ringwald 2017-08-15 11:29:50 +02:00
parent cc480b8fa8
commit 14f9effccb
1 changed files with 16 additions and 0 deletions
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16
platform/embedded/btstack_tlv_flash_sector.c
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@ -188,6 +188,16 @@ static void btstack_tlv_flash_sector_migrate(btstack_tlv_flash_sector_t * self){
self->write_offset = next_write_pos;
}
// returns 1 == ok
static int btstack_tlv_flash_sector_verify_alignment(btstack_tlv_flash_sector_t * self, uint32_t value_size){
uint32_t aligment = self->hal_flash_sector_impl->get_alignment(self->hal_flash_sector_context);
if (value_size % aligment){
log_error("Value size %u not a multiply of flash alignment %u", value_size, aligment);
return 0;
};
return 1;
}
/**
* Get Value for Tag
* @param tag
@ -199,6 +209,9 @@ static int btstack_tlv_flash_sector_get_tag(void * context, uint32_t tag, uint8_
btstack_tlv_flash_sector_t * self = (btstack_tlv_flash_sector_t *) context;
// abort if data size not aligned with flash requirements
if (!btstack_tlv_flash_sector_verify_alignment(self, buffer_size)) return 0;
uint32_t tag_index = 0;
uint32_t tag_len = 0;
tlv_iterator_t it;
@ -228,6 +241,9 @@ static void btstack_tlv_flash_sector_store_tag(void * context, uint32_t tag, con
btstack_tlv_flash_sector_t * self = (btstack_tlv_flash_sector_t *) context;
// abort if data size not aligned with flash requirements
if (!btstack_tlv_flash_sector_verify_alignment(self, data_size)) return;
if (self->write_offset + 8 + data_size > self->hal_flash_sector_impl->get_size(self->hal_flash_sector_context)){
btstack_tlv_flash_sector_migrate(self);
}