void nrf51822_int_enable(void)
{
uint8_t IS_NESTED_CRITICAL_REGION = 0;
if(critical_region_nested_cnt)
{
IS_NESTED_CRITICAL_REGION = 1;
critical_region_nested_cnt--;
}
uint32_t err_code = sd_nvic_critical_region_exit(IS_NESTED_CRITICAL_REGION);
}
void vPortExitCritical( void )
{
configASSERT( uxCriticalNesting );
uint8_t IS_NESTED_CRITICAL_REGION = uxCriticalNesting-- > 1 ? 1 : 0;
uint32_t err_code = sd_nvic_critical_region_exit(IS_NESTED_CRITICAL_REGION);
if (err_code != NRF_ERROR_SOFTDEVICE_NOT_ENABLED) {
__enable_irq();
}
else {
APP_ERROR_CHECK(err_code);
}
}
void app_util_critical_region_exit(uint8_t nested)
{
#ifdef NRF52
ASSERT(APP_LEVEL_PRIVILEGED == privilege_level_get())
#endif
#if defined(SOFTDEVICE_PRESENT)
/* return value can be safely ignored */
(void) sd_nvic_critical_region_exit(nested);
#else
app_util_enable_irq();
#endif
}
void core_util_critical_section_exit()
{
assert(_entry_count > 0);
--_entry_count;
// If their is other segments which have entered the critical section, just leave
if (_entry_count)
{
return;
}
// This is the last segment of the critical section, state should be restored as before entering
// the critical section
sd_nvic_critical_region_exit(_sd_state);
}
/**@snippet [Handling the data received over BLE] */
static void ossw_data_handler(ble_ossw_t * p_ossw, uint8_t * p_data, uint16_t length)
{
#ifdef OSSW_DEBUG
sd_nvic_critical_region_enter(0);
printf("DAT: 0x%02x 0x%02x 0x%02x\r\n", p_data[0], p_data[1], p_data[2]);
sd_nvic_critical_region_exit(0);
#endif
switch(p_data[0]) {
case 0x01:
scr_mngr_handle_event(SCR_EVENT_APP_CONNECTION_CONFIRMED, NULL);
break;
case 0x10:
// set current time
rtc_set_current_time(((uint32_t)p_data[1]<<24) | ((uint32_t)p_data[2]<<16)
| ((uint32_t)p_data[3]<<8) | (uint32_t)p_data[4]);
break;
case 0x40:
// command first part
command_reset_data();
command_append_data(p_data+1, length-1);
break;
case 0x41:
// command next part
command_append_data(p_data+1, length-1);
break;
case 0x42:
// command last part
command_append_data(p_data+1, length-1);
command_data_complete();
break;
case 0x43:
// command first and last part
command_reset_data();
command_append_data(p_data+1, length-1);
command_data_complete();
break;
}
}
uint32_t spi_master_send_recv(const spi_master_hw_instance_t spi_master_hw_instance,
uint8_t * const p_tx_buf, const uint16_t tx_buf_len,
uint8_t * const p_rx_buf, const uint16_t rx_buf_len)
{
#if defined(SPI_MASTER_0_ENABLE) || defined(SPI_MASTER_1_ENABLE)
volatile spi_master_instance_t * p_spi_instance = spi_master_get_instance(
spi_master_hw_instance);
APP_ERROR_CHECK_BOOL(p_spi_instance != NULL);
uint32_t err_code = NRF_SUCCESS;
uint16_t max_length = 0;
uint8_t nested_critical_region = 0;
//Check if disable all IRQs flag is set
if (p_spi_instance->disable_all_irq)
{
//Disable interrupts.
APP_ERROR_CHECK(sd_nvic_critical_region_enter(&nested_critical_region));
}
else
{
//Disable interrupt SPI.
APP_ERROR_CHECK(sd_nvic_DisableIRQ(p_spi_instance->irq_type));
}
//Initialize and perform data transfer
if (p_spi_instance->state == SPI_MASTER_STATE_IDLE)
{
max_length = (rx_buf_len > tx_buf_len) ? rx_buf_len : tx_buf_len;
if (max_length > 0)
{
p_spi_instance->state = SPI_MASTER_STATE_BUSY;
p_spi_instance->bytes_count = 0;
p_spi_instance->started_flag = false;
p_spi_instance->max_length = max_length;
/* Initialize buffers */
spi_master_buffer_init(p_tx_buf,
tx_buf_len,
&(p_spi_instance->p_tx_buffer),
&(p_spi_instance->tx_length),
&(p_spi_instance->tx_index));
spi_master_buffer_init(p_rx_buf,
rx_buf_len,
&(p_spi_instance->p_rx_buffer),
&(p_spi_instance->rx_length),
&(p_spi_instance->rx_index));
nrf_gpio_pin_clear(p_spi_instance->pin_slave_select);
spi_master_send_initial_bytes(p_spi_instance);
}
else
{
err_code = NRF_ERROR_INVALID_PARAM;
}
}
else
{
err_code = NRF_ERROR_BUSY;
}
//Check if disable all IRQs flag is set.
if (p_spi_instance->disable_all_irq)
{
//Enable interrupts.
APP_ERROR_CHECK(sd_nvic_critical_region_exit(nested_critical_region));
}
else
{
//Enable SPI interrupt.
APP_ERROR_CHECK(sd_nvic_EnableIRQ(p_spi_instance->irq_type));
}
return err_code;
#else
return NRF_ERROR_NOT_SUPPORTED;
#endif
}
