void nrf_drv_pwm_uninit(nrf_drv_pwm_t const * const p_instance)
{
pwm_control_block_t * p_cb = &m_cb[p_instance->drv_inst_idx];
ASSERT(p_cb->state != NRF_DRV_STATE_UNINITIALIZED);
nrf_drv_common_irq_disable(nrf_drv_get_IRQn(p_instance->p_registers));
nrf_pwm_disable(p_instance->p_registers);
p_cb->state = NRF_DRV_STATE_UNINITIALIZED;
}
ret_code_t nrf_drv_timer_init(nrf_drv_timer_t const * const p_instance,
nrf_drv_timer_config_t const * p_config,
nrf_timer_event_handler_t timer_event_handler)
{
timer_control_block_t * p_cb = &m_cb[p_instance->instance_id];
#ifdef SOFTDEVICE_PRESENT
ASSERT(p_instance->p_reg != NRF_TIMER0);
ASSERT(p_config);
#endif
if (p_cb->state != NRF_DRV_STATE_UNINITIALIZED)
{
return NRF_ERROR_INVALID_STATE;
}
if (timer_event_handler == NULL)
{
return NRF_ERROR_INVALID_PARAM;
}
/* Warning 685: Relational operator '<=' always evaluates to 'true'"
* Warning in NRF_TIMER_IS_BIT_WIDTH_VALID macro. Macro validate timers resolution.
* Not necessary in nRF52 based systems. Obligatory in nRF51 based systems.
*/
/*lint -save -e685 */
ASSERT(NRF_TIMER_IS_BIT_WIDTH_VALID(p_instance->p_reg, p_config->bit_width));
//lint -restore
p_cb->handler = timer_event_handler;
p_cb->context = p_config->p_context;
uint8_t i;
for (i = 0; i < p_instance->cc_channel_count; ++i)
{
nrf_timer_event_clear(p_instance->p_reg,
nrf_timer_compare_event_get(i));
}
nrf_drv_common_irq_enable(nrf_drv_get_IRQn(p_instance->p_reg),
p_config->interrupt_priority);
nrf_timer_mode_set(p_instance->p_reg, p_config->mode);
nrf_timer_bit_width_set(p_instance->p_reg, p_config->bit_width);
nrf_timer_frequency_set(p_instance->p_reg, p_config->frequency);
p_cb->state = NRF_DRV_STATE_INITIALIZED;
return NRF_SUCCESS;
}
void nrf_drv_timer_uninit(nrf_drv_timer_t const * const p_instance)
{
nrf_drv_common_irq_disable(nrf_drv_get_IRQn(p_instance->p_reg));
#define DISABLE_ALL UINT32_MAX
nrf_timer_shorts_disable(p_instance->p_reg, DISABLE_ALL);
nrf_timer_int_disable(p_instance->p_reg, DISABLE_ALL);
#undef DISABLE_ALL
nrf_drv_timer_disable(p_instance);
m_cb[p_instance->instance_id].state = NRF_DRV_STATE_UNINITIALIZED;
}
ret_code_t nrf_drv_timer_init(nrf_drv_timer_t const * const p_instance,
nrf_drv_timer_config_t const * p_config,
nrf_timer_event_handler_t timer_event_handler)
{
timer_control_block_t * p_cb = &m_cb[p_instance->instance_id];
#ifdef SOFTDEVICE_PRESENT
ASSERT(p_instance->p_reg != NRF_TIMER0);
#endif
ASSERT(NRF_TIMER_IS_BIT_WIDTH_VALID(p_instance->p_reg, p_config->bit_width));
if (p_cb->state != NRF_DRV_STATE_UNINITIALIZED)
{
return NRF_ERROR_INVALID_STATE;
}
if (timer_event_handler == NULL)
{
return NRF_ERROR_INVALID_PARAM;
}
if (p_config == NULL)
{
p_config = &m_default_config[p_instance->instance_id];
}
p_cb->handler = timer_event_handler;
p_cb->context = p_config->p_context;
uint8_t i;
for (i = 0; i < p_instance->cc_channel_count; ++i)
{
nrf_timer_event_clear(p_instance->p_reg,
nrf_timer_compare_event_get(i));
}
nrf_drv_common_irq_enable(nrf_drv_get_IRQn(p_instance->p_reg),
p_config->interrupt_priority);
nrf_timer_mode_set(p_instance->p_reg, p_config->mode);
nrf_timer_bit_width_set(p_instance->p_reg, p_config->bit_width);
nrf_timer_frequency_set(p_instance->p_reg, p_config->frequency);
p_cb->state = NRF_DRV_STATE_INITIALIZED;
return NRF_SUCCESS;
}
void nrf_drv_timer_uninit(nrf_drv_timer_t const * const p_instance)
{
nrf_drv_common_irq_disable(nrf_drv_get_IRQn(p_instance->p_reg));
#define DISABLE_ALL UINT32_MAX
nrf_timer_shorts_disable(p_instance->p_reg, DISABLE_ALL);
nrf_timer_int_disable(p_instance->p_reg, DISABLE_ALL);
#undef DISABLE_ALL
if (m_cb[p_instance->instance_id].state == NRF_DRV_STATE_POWERED_ON)
{
nrf_drv_timer_disable(p_instance);
}
m_cb[p_instance->instance_id].state = NRF_DRV_STATE_UNINITIALIZED;
NRF_LOG_INFO("Uninitialized instance: %d.\r\n", p_instance->instance_id);
}
ret_code_t nrf_drv_pwm_init(nrf_drv_pwm_t const * const p_instance,
nrf_drv_pwm_config_t const * p_config,
nrf_drv_pwm_handler_t handler)
{
ASSERT(p_config)
pwm_control_block_t * p_cb = &m_cb[p_instance->drv_inst_idx];
if (p_cb->state != NRF_DRV_STATE_UNINITIALIZED)
{
return NRF_ERROR_INVALID_STATE;
}
p_cb->handler = handler;
configure_pins(p_instance, p_config);
nrf_pwm_enable(p_instance->p_registers);
nrf_pwm_configure(p_instance->p_registers,
p_config->base_clock, p_config->count_mode, p_config->top_value);
nrf_pwm_decoder_set(p_instance->p_registers,
p_config->load_mode, p_config->step_mode);
nrf_pwm_shorts_set(p_instance->p_registers, 0);
nrf_pwm_int_set(p_instance->p_registers, 0);
nrf_pwm_event_clear(p_instance->p_registers, NRF_PWM_EVENT_LOOPSDONE);
nrf_pwm_event_clear(p_instance->p_registers, NRF_PWM_EVENT_SEQEND0);
nrf_pwm_event_clear(p_instance->p_registers, NRF_PWM_EVENT_SEQEND1);
nrf_pwm_event_clear(p_instance->p_registers, NRF_PWM_EVENT_STOPPED);
if (p_cb->handler)
{
nrf_drv_common_irq_enable(nrf_drv_get_IRQn(p_instance->p_registers),
p_config->irq_priority);
}
p_cb->state = NRF_DRV_STATE_INITIALIZED;
return NRF_SUCCESS;
}
void common_rtc_init(void)
{
if (m_common_rtc_enabled)
{
return;
}
errata_20();
NVIC_SetVector(RTC1_IRQn, (uint32_t)RTC1_IRQHandler);
// RTC is driven by the low frequency (32.768 kHz) clock, a proper request
// must be made to have it running.
// Currently this clock is started in 'SystemInit' (see "system_nrf51.c"
// or "system_nrf52.c", respectively).
nrf_rtc_prescaler_set(COMMON_RTC_INSTANCE, 0);
nrf_rtc_event_clear(COMMON_RTC_INSTANCE, US_TICKER_EVENT);
#if defined(TARGET_MCU_NRF51822)
nrf_rtc_event_clear(COMMON_RTC_INSTANCE, OS_TICK_EVENT);
#endif
#if DEVICE_LOWPOWERTIMER
nrf_rtc_event_clear(COMMON_RTC_INSTANCE, LP_TICKER_EVENT);
#endif
nrf_rtc_event_clear(COMMON_RTC_INSTANCE, NRF_RTC_EVENT_OVERFLOW);
// Interrupts on all related events are enabled permanently. Particular
// events will be enabled or disabled as needed (such approach is more
// energy efficient).
nrf_rtc_int_enable(COMMON_RTC_INSTANCE,
#if DEVICE_LOWPOWERTIMER
LP_TICKER_INT_MASK |
#endif
US_TICKER_INT_MASK |
NRF_RTC_INT_OVERFLOW_MASK);
// This event is enabled permanently, since overflow indications are needed
// continuously.
nrf_rtc_event_enable(COMMON_RTC_INSTANCE, NRF_RTC_INT_OVERFLOW_MASK);
// All other relevant events are initially disabled.
nrf_rtc_event_disable(COMMON_RTC_INSTANCE,
#if defined(TARGET_MCU_NRF51822)
OS_TICK_INT_MASK |
#endif
#if DEVICE_LOWPOWERTIMER
LP_TICKER_INT_MASK |
#endif
US_TICKER_INT_MASK);
nrf_drv_common_irq_enable(nrf_drv_get_IRQn(COMMON_RTC_INSTANCE),
#ifdef NRF51
APP_IRQ_PRIORITY_LOW
#elif defined(NRF52) || defined(NRF52840_XXAA)
APP_IRQ_PRIORITY_LOWEST
#endif
);
nrf_rtc_task_trigger(COMMON_RTC_INSTANCE, NRF_RTC_TASK_START);
m_common_rtc_enabled = true;
}
static rt_err_t _uart_cfg(struct rt_serial_device *serial, struct serial_configure *cfg)
{
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
UART_CFG_T *instance = &uart0;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
if (serial->parent.user_data != RT_NULL)
{
instance = (UART_CFG_T*)serial->parent.user_data;
}
nrf_uart_disable(instance->uart.reg.p_uart);
switch (cfg->baud_rate)
{
case 115200:
config.baudrate = NRF_UART_BAUDRATE_115200;
break;
case 9600:
config.baudrate = NRF_UART_BAUDRATE_9600;
break;
default:
config.baudrate = NRF_UART_BAUDRATE_115200;
break;
}
if (cfg->parity == PARITY_NONE)
{
config.parity = NRF_UART_PARITY_EXCLUDED;
}
else
{
config.parity = NRF_UART_PARITY_INCLUDED;
}
config.hwfc = NRF_UART_HWFC_DISABLED;
config.interrupt_priority = APP_IRQ_PRIORITY_LOWEST;
config.pselcts = 0;
config.pselrts = 0;
config.pselrxd = instance->rx_pin;
config.pseltxd = instance->tx_pin;
nrf_gpio_pin_set(config.pseltxd);
nrf_gpio_cfg_output(config.pseltxd);
nrf_gpio_pin_clear(config.pseltxd);
nrf_gpio_cfg_input(config.pselrxd, NRF_GPIO_PIN_NOPULL);
nrf_uart_baudrate_set(instance->uart.reg.p_uart, config.baudrate);
nrf_uart_configure(instance->uart.reg.p_uart, config.parity, config.hwfc);
nrf_uart_txrx_pins_set(instance->uart.reg.p_uart, config.pseltxd, config.pselrxd);
if (config.hwfc == NRF_UART_HWFC_ENABLED)
{
nrf_uart_hwfc_pins_set(instance->uart.reg.p_uart, config.pselrts, config.pselcts);
}
nrf_uart_event_clear(instance->uart.reg.p_uart, NRF_UART_EVENT_TXDRDY);
nrf_uart_event_clear(instance->uart.reg.p_uart, NRF_UART_EVENT_RXDRDY);
nrf_uart_event_clear(instance->uart.reg.p_uart, NRF_UART_EVENT_RXTO);
nrf_uart_event_clear(instance->uart.reg.p_uart, NRF_UART_EVENT_ERROR);
nrf_uart_int_enable(instance->uart.reg.p_uart, NRF_UART_INT_MASK_RXDRDY | NRF_UART_INT_MASK_RXTO | NRF_UART_INT_MASK_ERROR);
nrf_drv_common_irq_enable(nrf_drv_get_IRQn((void *)instance->uart.reg.p_uart), config.interrupt_priority);
nrf_uart_enable(instance->uart.reg.p_uart);
// nrf_uart_task_trigger(instance->uart.reg.p_uart, NRF_UART_TASK_STARTRX);
working_cfg = instance;
return RT_EOK;
}
static rt_err_t _uart_ctrl(struct rt_serial_device *serial, int cmd, void *arg)
{
UART_CFG_T *instance = working_cfg;
RT_ASSERT(serial != RT_NULL);
if (serial->parent.user_data != RT_NULL)
{
instance = (UART_CFG_T*)serial->parent.user_data;
}
switch (cmd)
{
/* disable interrupt */
case RT_DEVICE_CTRL_CLR_INT:
nrf_uart_task_trigger(instance->uart.reg.p_uart, NRF_UART_TASK_STOPRX);
nrf_uart_int_disable(instance->uart.reg.p_uart, NRF_UART_INT_MASK_RXDRDY
| NRF_UART_INT_MASK_RXTO
| NRF_UART_INT_MASK_ERROR);
nrf_drv_common_irq_disable(nrf_drv_get_IRQn((void *)instance->uart.reg.p_uart));
break;
/* enable interrupt */
case RT_DEVICE_CTRL_SET_INT:
nrf_uart_event_clear(instance->uart.reg.p_uart, NRF_UART_EVENT_RXDRDY);
nrf_uart_event_clear(instance->uart.reg.p_uart, NRF_UART_EVENT_RXTO);
nrf_uart_event_clear(instance->uart.reg.p_uart, NRF_UART_EVENT_ERROR);
/* Enable RX interrupt. */
nrf_uart_int_enable(instance->uart.reg.p_uart, NRF_UART_INT_MASK_RXDRDY
| NRF_UART_INT_MASK_RXTO
| NRF_UART_INT_MASK_ERROR);
nrf_drv_common_irq_enable(nrf_drv_get_IRQn((void *)instance->uart.reg.p_uart), APP_IRQ_PRIORITY_LOWEST);
nrf_uart_task_trigger(instance->uart.reg.p_uart, NRF_UART_TASK_STARTRX);
break;
case RT_DEVICE_CTRL_CUSTOM:
if ((rt_uint32_t)(arg) == UART_CONFIG_BAUD_RATE_9600)
{
instance->serial->config.baud_rate = 9600;
nrf_uart_baudrate_set(instance->uart.reg.p_uart, NRF_UART_BAUDRATE_9600);
}
else if ((rt_uint32_t)(arg) == UART_CONFIG_BAUD_RATE_115200)
{
instance->serial->config.baud_rate = 115200;
nrf_uart_baudrate_set(instance->uart.reg.p_uart, NRF_UART_BAUDRATE_115200);
}
// _uart_cfg(instance->serial, &(instance->serial->config));
// nrf_uart_task_trigger(instance->uart.reg.p_uart, NRF_UART_TASK_STARTRX);
break;
case RT_DEVICE_CTRL_PIN:
if (working_cfg != instance)
{
_uart_cfg(instance->serial, &(instance->serial->config));
}
break;
case RT_DEVICE_POWERSAVE:
nrf_uart_disable(instance->uart.reg.p_uart);
nrf_uart_txrx_pins_disconnect(instance->uart.reg.p_uart);
nrf_gpio_pin_clear(instance->rx_pin);
nrf_gpio_cfg_output(instance->rx_pin);
nrf_gpio_pin_clear(instance->tx_pin);
nrf_gpio_cfg_output(instance->tx_pin);
break;
case RT_DEVICE_WAKEUP:
_uart_cfg(instance->serial, &(instance->serial->config));
break;
default:
return RT_ERROR;
}
return RT_EOK;
}
ret_code_t nrf_drv_timer_init(nrf_drv_timer_t const * const p_instance,
nrf_drv_timer_config_t const * p_config,
nrf_timer_event_handler_t timer_event_handler)
{
timer_control_block_t * p_cb = &m_cb[p_instance->instance_id];
ASSERT(((p_instance->p_reg == NRF_TIMER0) && TIMER0_ENABLED) || (p_instance->p_reg != NRF_TIMER0));
ASSERT(((p_instance->p_reg == NRF_TIMER1) && TIMER1_ENABLED) || (p_instance->p_reg != NRF_TIMER1));
ASSERT(((p_instance->p_reg == NRF_TIMER2) && TIMER2_ENABLED) || (p_instance->p_reg != NRF_TIMER2));
#if TIMER_COUNT == 5
ASSERT(((p_instance->p_reg == NRF_TIMER3) && TIMER3_ENABLED) || (p_instance->p_reg != NRF_TIMER3));
ASSERT(((p_instance->p_reg == NRF_TIMER4) && TIMER4_ENABLED) || (p_instance->p_reg != NRF_TIMER4));
#endif //TIMER_COUNT
#ifdef SOFTDEVICE_PRESENT
ASSERT(p_instance->p_reg != NRF_TIMER0);
ASSERT(p_config);
#endif
ret_code_t err_code;
if (p_cb->state != NRF_DRV_STATE_UNINITIALIZED)
{
err_code = NRF_ERROR_INVALID_STATE;
NRF_LOG_WARNING("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
return err_code;
}
if (timer_event_handler == NULL)
{
err_code = NRF_ERROR_INVALID_PARAM;
NRF_LOG_WARNING("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
return err_code;
}
/* Warning 685: Relational operator '<=' always evaluates to 'true'"
* Warning in NRF_TIMER_IS_BIT_WIDTH_VALID macro. Macro validate timers resolution.
* Not necessary in nRF52 based systems. Obligatory in nRF51 based systems.
*/
/*lint -save -e685 */
ASSERT(NRF_TIMER_IS_BIT_WIDTH_VALID(p_instance->p_reg, p_config->bit_width));
//lint -restore
p_cb->handler = timer_event_handler;
p_cb->context = p_config->p_context;
uint8_t i;
for (i = 0; i < p_instance->cc_channel_count; ++i)
{
nrf_timer_event_clear(p_instance->p_reg,
nrf_timer_compare_event_get(i));
}
nrf_drv_common_irq_enable(nrf_drv_get_IRQn(p_instance->p_reg),
p_config->interrupt_priority);
nrf_timer_mode_set(p_instance->p_reg, p_config->mode);
nrf_timer_bit_width_set(p_instance->p_reg, p_config->bit_width);
nrf_timer_frequency_set(p_instance->p_reg, p_config->frequency);
p_cb->state = NRF_DRV_STATE_INITIALIZED;
err_code = NRF_SUCCESS;
NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
return err_code;
}
