void nrf_drv_pwm_complex_playback(nrf_drv_pwm_t const * const p_instance, nrf_pwm_sequence_t const * p_sequence_0, nrf_pwm_sequence_t const * p_sequence_1, uint16_t playback_count, uint32_t flags) { pwm_control_block_t * p_cb = &m_cb[p_instance->drv_inst_idx]; ASSERT(p_cb->state != NRF_DRV_STATE_UNINITIALIZED); ASSERT(playback_count > 0); ASSERT(nrf_drv_is_in_RAM(p_sequence_0->values.p_raw)); ASSERT(nrf_drv_is_in_RAM(p_sequence_1->values.p_raw)); nrf_pwm_sequence_set(p_instance->p_registers, 0, p_sequence_0); nrf_pwm_sequence_set(p_instance->p_registers, 1, p_sequence_1); nrf_pwm_loop_set(p_instance->p_registers, playback_count); uint32_t shorts_mask; if (flags & NRF_DRV_PWM_FLAG_STOP) { shorts_mask = NRF_PWM_SHORT_LOOPSDONE_STOP_MASK; } else if (flags & NRF_DRV_PWM_FLAG_LOOP) { shorts_mask = NRF_PWM_SHORT_LOOPSDONE_SEQSTART0_MASK; } else { shorts_mask = 0; } nrf_pwm_shorts_set(p_instance->p_registers, shorts_mask); start_playback(p_instance, p_cb, flags, NRF_PWM_TASK_SEQSTART0); }
ret_code_t nrf_drv_spis_buffers_set(nrf_drv_spis_t const * const p_instance, const uint8_t * p_tx_buffer, uint8_t tx_buffer_length, uint8_t * p_rx_buffer, uint8_t rx_buffer_length) { spis_cb_t * p_cb = &m_cb[p_instance->instance_id]; uint32_t err_code; VERIFY_PARAM_NOT_NULL(p_rx_buffer); VERIFY_PARAM_NOT_NULL(p_tx_buffer); // EasyDMA requires that transfer buffers are placed in Data RAM region; // signal error if they are not. if ((p_tx_buffer != NULL && !nrf_drv_is_in_RAM(p_tx_buffer)) || (p_rx_buffer != NULL && !nrf_drv_is_in_RAM(p_rx_buffer))) { err_code = NRF_ERROR_INVALID_ADDR; NRF_LOG_WARNING("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code)); return err_code; } switch (p_cb->spi_state) { case SPIS_STATE_INIT: case SPIS_XFER_COMPLETED: case SPIS_BUFFER_RESOURCE_CONFIGURED: p_cb->tx_buffer = p_tx_buffer; p_cb->rx_buffer = p_rx_buffer; p_cb->tx_buffer_size = tx_buffer_length; p_cb->rx_buffer_size = rx_buffer_length; err_code = NRF_SUCCESS; spis_state_change(p_instance->p_reg, p_cb, SPIS_BUFFER_RESOURCE_REQUESTED); break; case SPIS_BUFFER_RESOURCE_REQUESTED: err_code = NRF_ERROR_INVALID_STATE; break; default: // @note: execution of this code path would imply internal error in the design. err_code = NRF_ERROR_INTERNAL; break; } NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code)); return err_code; }
ret_code_t nrf_drv_qspi_read(void * p_rx_buffer, size_t rx_buffer_length, uint32_t src_address) { ASSERT(m_cb.state != NRF_DRV_STATE_UNINITIALIZED); ASSERT(p_rx_buffer != NULL); if (!nrf_drv_is_in_RAM(p_rx_buffer)) { return NRF_ERROR_INVALID_ADDR; } nrf_qspi_read_buffer_set(NRF_QSPI, p_rx_buffer, rx_buffer_length, src_address); return qspi_task_perform(NRF_QSPI_TASK_READSTART); }
ret_code_t nrf_drv_qspi_write(void const * p_tx_buffer, size_t tx_buffer_length, uint32_t dst_address) { ASSERT(m_cb.state != NRF_DRV_STATE_UNINITIALIZED); ASSERT(p_tx_buffer != NULL); if (!nrf_drv_is_in_RAM(p_tx_buffer)) { return NRF_ERROR_INVALID_ADDR; } nrf_qspi_write_buffer_set(NRF_QSPI, p_tx_buffer, tx_buffer_length, dst_address); return qspi_task_perform(NRF_QSPI_TASK_WRITESTART); }
void nrf_drv_pwm_simple_playback(nrf_drv_pwm_t const * const p_instance, nrf_pwm_sequence_t const * p_sequence, uint16_t playback_count, uint32_t flags) { pwm_control_block_t * p_cb = &m_cb[p_instance->drv_inst_idx]; ASSERT(p_cb->state != NRF_DRV_STATE_UNINITIALIZED); ASSERT(playback_count > 0); ASSERT(nrf_drv_is_in_RAM(p_sequence->values.p_raw)); // To take advantage of the looping mechanism, we need to use both sequences // (single sequence can be played back only once). nrf_pwm_sequence_set(p_instance->p_registers, 0, p_sequence); nrf_pwm_sequence_set(p_instance->p_registers, 1, p_sequence); bool odd = (playback_count & 1); nrf_pwm_loop_set(p_instance->p_registers, playback_count / 2 + (odd ? 1 : 0)); uint32_t shorts_mask; if (flags & NRF_DRV_PWM_FLAG_STOP) { shorts_mask = NRF_PWM_SHORT_LOOPSDONE_STOP_MASK; } else if (flags & NRF_DRV_PWM_FLAG_LOOP) { shorts_mask = odd ? NRF_PWM_SHORT_LOOPSDONE_SEQSTART1_MASK : NRF_PWM_SHORT_LOOPSDONE_SEQSTART0_MASK; } else { shorts_mask = 0; } nrf_pwm_shorts_set(p_instance->p_registers, shorts_mask); start_playback(p_instance, p_cb, flags, odd ? NRF_PWM_TASK_SEQSTART1 : NRF_PWM_TASK_SEQSTART0); }
ret_code_t nrf_drv_i2s_start(uint32_t * p_rx_buffer, uint32_t * p_tx_buffer, uint16_t buffer_size, uint8_t flags) { ASSERT((p_rx_buffer != NULL) || (p_tx_buffer != NULL)); uint16_t buffer_half_size = buffer_size / 2; ASSERT(buffer_half_size != 0); VERIFY_MODULE_INITIALIZED(); ret_code_t err_code; if ((p_rx_buffer != NULL) && !nrf_drv_is_in_RAM(p_rx_buffer)) { err_code = NRF_ERROR_INVALID_ADDR; NRF_LOG_WARNING("Function: %s, error code: %s.", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(err_code)); return err_code; } if ((p_tx_buffer != NULL) && !nrf_drv_is_in_RAM(p_tx_buffer)) { err_code = NRF_ERROR_INVALID_ADDR; NRF_LOG_WARNING("Function: %s, error code: %s.", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(err_code)); return err_code; } // Initially we set up the peripheral to use the first half of each buffer, // then in 'I2S_IRQHandler' we will switch to the second half. nrf_i2s_transfer_set(NRF_I2S, buffer_half_size, p_rx_buffer, p_tx_buffer); m_cb.p_rx_buffer = p_rx_buffer; m_cb.p_tx_buffer = p_tx_buffer; m_cb.buffer_half_size = buffer_half_size; m_cb.just_started = true; if ((flags & NRF_DRV_I2S_FLAG_SYNCHRONIZED_MODE) && // [synchronized mode makes sense only when both RX and TX are enabled] (m_cb.p_rx_buffer != NULL) && (m_cb.p_tx_buffer != NULL)) { m_cb.synchronized_mode = true; m_cb.rx_ready = false; m_cb.tx_ready = false; } else { m_cb.synchronized_mode = false; } nrf_i2s_enable(NRF_I2S); m_cb.state = NRF_DRV_STATE_POWERED_ON; if (m_cb.p_tx_buffer != NULL) { // Get from the application the first portion of data to be sent - we // need to have it in the transmit buffer before we start the transfer. // Unless the synchronized mode is active. In this mode we must wait // with this until the first portion of data is received, so here we // just make sure that there will be silence on the SDOUT line prior // to that moment. if (m_cb.synchronized_mode) { memset(m_cb.p_tx_buffer, 0, m_cb.buffer_half_size * sizeof(uint32_t)); } else { m_cb.handler(NULL, m_cb.p_tx_buffer, m_cb.buffer_half_size); } } nrf_i2s_event_clear(NRF_I2S, NRF_I2S_EVENT_RXPTRUPD); nrf_i2s_event_clear(NRF_I2S, NRF_I2S_EVENT_TXPTRUPD); nrf_i2s_int_enable(NRF_I2S, NRF_I2S_INT_RXPTRUPD_MASK | NRF_I2S_INT_TXPTRUPD_MASK); nrf_i2s_task_trigger(NRF_I2S, NRF_I2S_TASK_START); err_code = NRF_SUCCESS; NRF_LOG_INFO("Function: %s, error code: %s.", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(err_code)); return err_code; }