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ExhaustibleBlockDevice: revert commit 10481f2 

Reverts commit 10481f2f7e partially.
Changes made to ExhaustibleBlockDevice hides simulated flash degradation
which is the assumed behavior. Converted back to original behavior.
pull/12919/head
Veijo Pesonen 2020-05-04 22:21:25 +03:00
parent af4c8a94f3
commit 0278e38896
2 changed files with 6 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
features/storage/blockdevice/ExhaustibleBlockDevice.cpp
View File

@ -21,31 +21,13 @@
namespace mbed {
ExhaustibleBlockDevice::ExhaustibleBlockDevice(BlockDevice *bd, uint32_t erase_cycles)
: _bd(bd), _erase_array(NULL), _programmable_array(NULL), _erase_cycles(erase_cycles),
_init_ref_count(0), _is_initialized(false)
: _bd(bd), _erase_array(NULL), _erase_cycles(erase_cycles), _init_ref_count(0), _is_initialized(false)
{
}
ExhaustibleBlockDevice::~ExhaustibleBlockDevice()
{
delete[] _erase_array;
delete[] _programmable_array;
}
uint32_t ExhaustibleBlockDevice::get_erase_cycles(bd_addr_t addr) const
{
if (!_is_initialized) {
return 0;
}
return _erase_array[addr / get_erase_size()];
}
void ExhaustibleBlockDevice::set_erase_cycles(bd_addr_t addr, uint32_t cycles)
{
if (!_is_initialized) {
return;
}
_erase_array[addr / get_erase_size()] = cycles;
}
int ExhaustibleBlockDevice::init()
@ -70,13 +52,6 @@ int ExhaustibleBlockDevice::init()
}
}
if (!_programmable_array) {
_programmable_array = new bool[_bd->size() / _bd->get_erase_size()];
for (size_t i = 0; i < _bd->size() / _bd->get_erase_size(); i++) {
_programmable_array[i] = true;
}
}
_is_initialized = true;
return BD_ERROR_OK;
@ -133,20 +108,10 @@ int ExhaustibleBlockDevice::program(const void *buffer, bd_addr_t addr, bd_size_
}
if (_erase_array[addr / get_erase_size()] == 0) {
return BD_ERROR_DEVICE_ERROR;
return 0;
}
if (!_programmable_array[addr / get_erase_size()]) {
return BD_ERROR_DEVICE_ERROR;
}
int ret = _bd->program(buffer, addr, size);
if (ret == BD_ERROR_OK) {
_programmable_array[addr / get_erase_size()] = false;
}
return ret;
return _bd->program(buffer, addr, size);
}
int ExhaustibleBlockDevice::erase(bd_addr_t addr, bd_size_t size)
@ -164,13 +129,13 @@ int ExhaustibleBlockDevice::erase(bd_addr_t addr, bd_size_t size)
// use an erase cycle
if (_erase_array[addr / eu_size] > 0) {
_erase_array[addr / eu_size] -= 1;
}
if (_erase_array[addr / eu_size] > 0) {
int err = _bd->erase(addr, eu_size);
if (err) {
return err;
}
_programmable_array[addr / get_erase_size()] = true;
} else {
return BD_ERROR_DEVICE_ERROR;
}
addr += eu_size;

1
features/storage/blockdevice/ExhaustibleBlockDevice.h
View File

@ -158,7 +158,6 @@ public:
private:
BlockDevice *_bd;
uint32_t *_erase_array;
bool *_programmable_array;
uint32_t _erase_cycles;
uint32_t _init_ref_count;
bool _is_initialized;