static int flash_nrf_write(struct device *dev, off_t addr,
const void *data, size_t len)
{
int ret;
if (write_protect) {
return -EACCES;
}
if (!is_addr_valid(addr, len)) {
return -EINVAL;
}
if (!len) {
return 0;
}
SYNC_LOCK();
#if defined(CONFIG_SOC_FLASH_NRF_RADIO_SYNC)
if (ticker_is_initialized(0)) {
ret = write_in_timeslice(addr, data, len);
} else
#endif /* CONFIG_SOC_FLASH_NRF_RADIO_SYNC */
{
ret = write(addr, data, len);
}
SYNC_UNLOCK();
return ret;
}
static int flash_nrf_erase(struct device *dev, off_t addr, size_t size)
{
u32_t pg_size = NRF_FICR->CODEPAGESIZE;
u32_t n_pages = size / pg_size;
int ret;
/* Erase can only be done per page */
if (((addr % pg_size) != 0) || ((size % pg_size) != 0)) {
return -EINVAL;
}
if (!is_addr_valid(addr, size)) {
return -EINVAL;
}
if (!n_pages) {
return 0;
}
SYNC_LOCK();
#if defined(CONFIG_SOC_FLASH_NRF_RADIO_SYNC)
if (ticker_is_initialized(0)) {
ret = erase_in_timeslice(addr, size);
} else
#endif /* CONFIG_SOC_FLASH_NRF_RADIO_SYNC */
{
ret = erase(addr, size);
}
SYNC_UNLOCK();
return ret;
}
static int flash_nrf_write_protection(struct device *dev, bool enable)
{
SYNC_LOCK();
if (enable) {
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
} else {
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
}
nvmc_wait_ready();
SYNC_UNLOCK();
return 0;
}