/** * Copyright (c) 2015 - 2018, Nordic Semiconductor ASA * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form, except as embedded into a Nordic * Semiconductor ASA integrated circuit in a product or a software update for * such product, must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other * materials provided with the distribution. * * 3. Neither the name of Nordic Semiconductor ASA nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * 4. This software, with or without modification, must only be used with a * Nordic Semiconductor ASA integrated circuit. * * 5. Any software provided in binary form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef NRF_DRV_SPI_H__ #define NRF_DRV_SPI_H__ #include #ifdef SPIM_PRESENT #include #else // Compilers (at least the smart ones) will remove the SPIM related code // (blocks starting with "if (NRF_DRV_SPI_USE_SPIM)") when it is not used, // but to perform the compilation they need the following definitions. #define nrfx_spim_init(...) 0 #define nrfx_spim_uninit(...) #define nrfx_spim_start_task_get(...) 0 #define nrfx_spim_end_event_get(...) 0 #define nrfx_spim_abort(...) #endif #ifdef SPI_PRESENT #include #else // Compilers (at least the smart ones) will remove the SPI related code // (blocks starting with "if (NRF_DRV_SPI_USE_SPI)") when it is not used, // but to perform the compilation they need the following definitions. #define nrfx_spi_init(...) 0 #define nrfx_spi_uninit(...) #define nrfx_spi_start_task_get(...) 0 #define nrfx_spi_end_event_get(...) 0 #define nrfx_spi_abort(...) // This part is for old modules that use directly SPI HAL definitions // (to make them compilable for chips that have only SPIM). #define NRF_SPI_FREQ_125K NRF_SPIM_FREQ_125K #define NRF_SPI_FREQ_250K NRF_SPIM_FREQ_250K #define NRF_SPI_FREQ_500K NRF_SPIM_FREQ_500K #define NRF_SPI_FREQ_1M NRF_SPIM_FREQ_1M #define NRF_SPI_FREQ_2M NRF_SPIM_FREQ_2M #define NRF_SPI_FREQ_4M NRF_SPIM_FREQ_4M #define NRF_SPI_FREQ_8M NRF_SPIM_FREQ_8M #define NRF_SPI_MODE_0 NRF_SPIM_MODE_0 #define NRF_SPI_MODE_1 NRF_SPIM_MODE_1 #define NRF_SPI_MODE_2 NRF_SPIM_MODE_2 #define NRF_SPI_MODE_3 NRF_SPIM_MODE_3 #define NRF_SPI_BIT_ORDER_MSB_FIRST NRF_SPIM_BIT_ORDER_MSB_FIRST #define NRF_SPI_BIT_ORDER_LSB_FIRST NRF_SPIM_BIT_ORDER_LSB_FIRST #endif #ifdef __cplusplus extern "C" { #endif /** * @defgroup nrf_drv_spi SPI master driver * @{ * @ingroup nrf_spi * @brief Layer providing compatibility with the former API. */ /** * @brief SPI master driver instance data structure. */ typedef struct { uint8_t inst_idx; union { #ifdef SPIM_PRESENT nrfx_spim_t spim; #endif #ifdef SPI_PRESENT nrfx_spi_t spi; #endif } u; bool use_easy_dma; } nrf_drv_spi_t; /** * @brief Macro for creating an SPI master driver instance. */ #define NRF_DRV_SPI_INSTANCE(id) NRF_DRV_SPI_INSTANCE_(id) #define NRF_DRV_SPI_INSTANCE_(id) NRF_DRV_SPI_INSTANCE_ ## id #if NRFX_CHECK(NRFX_SPIM0_ENABLED) #define NRF_DRV_SPI_INSTANCE_0 \ { 0, { .spim = NRFX_SPIM_INSTANCE(0) }, true } #elif NRFX_CHECK(NRFX_SPI0_ENABLED) #define NRF_DRV_SPI_INSTANCE_0 \ { 0, { .spi = NRFX_SPI_INSTANCE(0) }, false } #endif #if NRFX_CHECK(NRFX_SPIM1_ENABLED) #define NRF_DRV_SPI_INSTANCE_1 \ { 1, { .spim = NRFX_SPIM_INSTANCE(1) }, true } #elif NRFX_CHECK(NRFX_SPI1_ENABLED) #define NRF_DRV_SPI_INSTANCE_1 \ { 1, { .spi = NRFX_SPI_INSTANCE(1) }, false } #endif #if NRFX_CHECK(NRFX_SPIM2_ENABLED) #define NRF_DRV_SPI_INSTANCE_2 \ { 2, { .spim = NRFX_SPIM_INSTANCE(2) }, true } #elif NRFX_CHECK(NRFX_SPI2_ENABLED) #define NRF_DRV_SPI_INSTANCE_2 \ { 2, { .spi = NRFX_SPI_INSTANCE(2) }, false } #endif /** * @brief This value can be provided instead of a pin number for signals MOSI, * MISO, and Slave Select to specify that the given signal is not used and * therefore does not need to be connected to a pin. */ #define NRF_DRV_SPI_PIN_NOT_USED 0xFF /** * @brief SPI data rates. */ typedef enum { NRF_DRV_SPI_FREQ_125K = NRF_SPI_FREQ_125K, ///< 125 kbps. NRF_DRV_SPI_FREQ_250K = NRF_SPI_FREQ_250K, ///< 250 kbps. NRF_DRV_SPI_FREQ_500K = NRF_SPI_FREQ_500K, ///< 500 kbps. NRF_DRV_SPI_FREQ_1M = NRF_SPI_FREQ_1M, ///< 1 Mbps. NRF_DRV_SPI_FREQ_2M = NRF_SPI_FREQ_2M, ///< 2 Mbps. NRF_DRV_SPI_FREQ_4M = NRF_SPI_FREQ_4M, ///< 4 Mbps. NRF_DRV_SPI_FREQ_8M = NRF_SPI_FREQ_8M ///< 8 Mbps. } nrf_drv_spi_frequency_t; /** * @brief SPI modes. */ typedef enum { NRF_DRV_SPI_MODE_0 = NRF_SPI_MODE_0, ///< SCK active high, sample on leading edge of clock. NRF_DRV_SPI_MODE_1 = NRF_SPI_MODE_1, ///< SCK active high, sample on trailing edge of clock. NRF_DRV_SPI_MODE_2 = NRF_SPI_MODE_2, ///< SCK active low, sample on leading edge of clock. NRF_DRV_SPI_MODE_3 = NRF_SPI_MODE_3 ///< SCK active low, sample on trailing edge of clock. } nrf_drv_spi_mode_t; /** * @brief SPI bit orders. */ typedef enum { NRF_DRV_SPI_BIT_ORDER_MSB_FIRST = NRF_SPI_BIT_ORDER_MSB_FIRST, ///< Most significant bit shifted out first. NRF_DRV_SPI_BIT_ORDER_LSB_FIRST = NRF_SPI_BIT_ORDER_LSB_FIRST ///< Least significant bit shifted out first. } nrf_drv_spi_bit_order_t; /** * @brief SPI master driver instance configuration structure. */ typedef struct { uint8_t sck_pin; ///< SCK pin number. uint8_t mosi_pin; ///< MOSI pin number (optional). /**< Set to @ref NRF_DRV_SPI_PIN_NOT_USED * if this signal is not needed. */ uint8_t miso_pin; ///< MISO pin number (optional). /**< Set to @ref NRF_DRV_SPI_PIN_NOT_USED * if this signal is not needed. */ uint8_t ss_pin; ///< Slave Select pin number (optional). /**< Set to @ref NRF_DRV_SPI_PIN_NOT_USED * if this signal is not needed. The driver * supports only active low for this signal. * If the signal should be active high, * it must be controlled externally. */ uint8_t irq_priority; ///< Interrupt priority. uint8_t orc; ///< Over-run character. /**< This character is used when all bytes from the TX buffer are sent, but the transfer continues due to RX. */ nrf_drv_spi_frequency_t frequency; ///< SPI frequency. nrf_drv_spi_mode_t mode; ///< SPI mode. nrf_drv_spi_bit_order_t bit_order; ///< SPI bit order. } nrf_drv_spi_config_t; /** * @brief SPI master instance default configuration. */ #define NRF_DRV_SPI_DEFAULT_CONFIG \ { \ .sck_pin = NRF_DRV_SPI_PIN_NOT_USED, \ .mosi_pin = NRF_DRV_SPI_PIN_NOT_USED, \ .miso_pin = NRF_DRV_SPI_PIN_NOT_USED, \ .ss_pin = NRF_DRV_SPI_PIN_NOT_USED, \ .irq_priority = SPI_DEFAULT_CONFIG_IRQ_PRIORITY, \ .orc = 0xFF, \ .frequency = NRF_DRV_SPI_FREQ_4M, \ .mode = NRF_DRV_SPI_MODE_0, \ .bit_order = NRF_DRV_SPI_BIT_ORDER_MSB_FIRST, \ } #define NRF_DRV_SPI_FLAG_TX_POSTINC (1UL << 0) /**< TX buffer address incremented after transfer. */ #define NRF_DRV_SPI_FLAG_RX_POSTINC (1UL << 1) /**< RX buffer address incremented after transfer. */ #define NRF_DRV_SPI_FLAG_NO_XFER_EVT_HANDLER (1UL << 2) /**< Interrupt after each transfer is suppressed, and the event handler is not called. */ #define NRF_DRV_SPI_FLAG_HOLD_XFER (1UL << 3) /**< Set up the transfer but do not start it. */ #define NRF_DRV_SPI_FLAG_REPEATED_XFER (1UL << 4) /**< Flag indicating that the transfer will be executed multiple times. */ /** * @brief Single transfer descriptor structure. */ typedef struct { uint8_t const * p_tx_buffer; ///< Pointer to TX buffer. uint8_t tx_length; ///< TX buffer length. uint8_t * p_rx_buffer; ///< Pointer to RX buffer. uint8_t rx_length; ///< RX buffer length. }nrf_drv_spi_xfer_desc_t; /** * @brief Macro for setting up single transfer descriptor. * * This macro is for internal use only. */ #define NRF_DRV_SPI_SINGLE_XFER(p_tx, tx_len, p_rx, rx_len) \ { \ .p_tx_buffer = (uint8_t const *)(p_tx), \ .tx_length = (tx_len), \ .p_rx_buffer = (p_rx), \ .rx_length = (rx_len), \ } /** * @brief Macro for setting duplex TX RX transfer. */ #define NRF_DRV_SPI_XFER_TRX(p_tx_buf, tx_length, p_rx_buf, rx_length) \ NRF_DRV_SPI_SINGLE_XFER(p_tx_buf, tx_length, p_rx_buf, rx_length) /** * @brief Macro for setting TX transfer. */ #define NRF_DRV_SPI_XFER_TX(p_buf, length) \ NRF_DRV_SPI_SINGLE_XFER(p_buf, length, NULL, 0) /** * @brief Macro for setting RX transfer. */ #define NRF_DRV_SPI_XFER_RX(p_buf, length) \ NRF_DRV_SPI_SINGLE_XFER(NULL, 0, p_buf, length) /** * @brief SPI master driver event types, passed to the handler routine provided * during initialization. */ typedef enum { NRF_DRV_SPI_EVENT_DONE, ///< Transfer done. } nrf_drv_spi_evt_type_t; typedef struct { nrf_drv_spi_evt_type_t type; ///< Event type. union { nrf_drv_spi_xfer_desc_t done; ///< Event data for DONE event. } data; } nrf_drv_spi_evt_t; /** * @brief SPI master driver event handler type. */ typedef void (* nrf_drv_spi_evt_handler_t)(nrf_drv_spi_evt_t const * p_event, void * p_context); /** * @brief Function for initializing the SPI master driver instance. * * This function configures and enables the specified peripheral. * * @note MISO pin has pull down enabled. * * @param[in] p_instance Pointer to the driver instance structure. * @param[in] p_config Pointer to the structure with the initial configuration. * * @param handler Event handler provided by the user. If NULL, transfers * will be performed in blocking mode. * @param p_context Context passed to event handler. * * @retval NRF_SUCCESS If initialization was successful. * @retval NRF_ERROR_INVALID_STATE If the driver was already initialized. * @retval NRF_ERROR_BUSY If some other peripheral with the same * instance ID is already in use. This is * possible only if PERIPHERAL_RESOURCE_SHARING_ENABLED * is set to a value other than zero. */ ret_code_t nrf_drv_spi_init(nrf_drv_spi_t const * const p_instance, nrf_drv_spi_config_t const * p_config, nrf_drv_spi_evt_handler_t handler, void * p_context); /** * @brief Function for uninitializing the SPI master driver instance. * * @note Configuration of pins is kept. * * @param[in] p_instance Pointer to the driver instance structure. */ __STATIC_INLINE void nrf_drv_spi_uninit(nrf_drv_spi_t const * const p_instance); /** * @brief Function for starting the SPI data transfer. * * If an event handler was provided in the @ref nrf_drv_spi_init call, this function * returns immediately and the handler is called when the transfer is done. * Otherwise, the transfer is performed in blocking mode, which means that this function * returns when the transfer is finished. * * @note Peripherals using EasyDMA (for example, SPIM) require the transfer buffers * to be placed in the Data RAM region. If they are not and an SPIM instance is * used, this function will fail with the error code NRF_ERROR_INVALID_ADDR. * * @param[in] p_instance Pointer to the driver instance structure. * @param[in] p_tx_buffer Pointer to the transmit buffer. Can be NULL * if there is nothing to send. * @param tx_buffer_length Length of the transmit buffer. * @param[in] p_rx_buffer Pointer to the receive buffer. Can be NULL * if there is nothing to receive. * @param rx_buffer_length Length of the receive buffer. * * @retval NRF_SUCCESS If the operation was successful. * @retval NRF_ERROR_BUSY If a previously started transfer has not finished * yet. * @retval NRF_ERROR_INVALID_ADDR If the provided buffers are not placed in the Data * RAM region. */ __STATIC_INLINE ret_code_t nrf_drv_spi_transfer(nrf_drv_spi_t const * const p_instance, uint8_t const * p_tx_buffer, uint8_t tx_buffer_length, uint8_t * p_rx_buffer, uint8_t rx_buffer_length); /** * @brief Function for starting the SPI data transfer with additional option flags. * * Function enables customizing the transfer by using option flags. * * Additional options are provided using the flags parameter: * * - @ref NRF_DRV_SPI_FLAG_TX_POSTINC and @ref NRF_DRV_SPI_FLAG_RX_POSTINC: * Post-incrementation of buffer addresses. Supported only by SPIM. * - @ref NRF_DRV_SPI_FLAG_HOLD_XFER: Driver is not starting the transfer. Use this * flag if the transfer is triggered externally by PPI. Supported only by SPIM. Use * @ref nrf_drv_spi_start_task_get to get the address of the start task. * - @ref NRF_DRV_SPI_FLAG_NO_XFER_EVT_HANDLER: No user event handler after transfer * completion. This also means no interrupt at the end of the transfer. Supported only by SPIM. * If @ref NRF_DRV_SPI_FLAG_NO_XFER_EVT_HANDLER is used, the driver does not set the instance into * busy state, so you must ensure that the next transfers are set up when SPIM is not active. * @ref nrf_drv_spi_end_event_get function can be used to detect end of transfer. Option can be used * together with @ref NRF_DRV_SPI_FLAG_REPEATED_XFER to prepare a sequence of SPI transfers * without interruptions. * - @ref NRF_DRV_SPI_FLAG_REPEATED_XFER: Prepare for repeated transfers. You can set * up a number of transfers that will be triggered externally (for example by PPI). An example is * a TXRX transfer with the options @ref NRF_DRV_SPI_FLAG_RX_POSTINC, * @ref NRF_DRV_SPI_FLAG_NO_XFER_EVT_HANDLER, and @ref NRF_DRV_SPI_FLAG_REPEATED_XFER. After the * transfer is set up, a set of transfers can be triggered by PPI that will read, for example, * the same register of an external component and put it into a RAM buffer without any interrupts. * @ref nrf_drv_spi_end_event_get can be used to get the address of the END event, which can be * used to count the number of transfers. If @ref NRF_DRV_SPI_FLAG_REPEATED_XFER is used, * the driver does not set the instance into busy state, so you must ensure that the next * transfers are set up when SPIM is not active. Supported only by SPIM. * @note Function is intended to be used only in non-blocking mode. * * @param p_instance Pointer to the driver instance structure. * @param p_xfer_desc Pointer to the transfer descriptor. * @param flags Transfer options (0 for default settings). * * @retval NRF_SUCCESS If the procedure was successful. * @retval NRF_ERROR_BUSY If the driver is not ready for a new transfer. * @retval NRF_ERROR_NOT_SUPPORTED If the provided parameters are not supported. * @retval NRF_ERROR_INVALID_ADDR If the provided buffers are not placed in the Data * RAM region. */ __STATIC_INLINE ret_code_t nrf_drv_spi_xfer(nrf_drv_spi_t const * const p_instance, nrf_drv_spi_xfer_desc_t const * p_xfer_desc, uint32_t flags); /** * @brief Function for returning the address of a SPIM start task. * * This function should be used if @ref nrf_drv_spi_xfer was called with the flag @ref NRF_DRV_SPI_FLAG_HOLD_XFER. * In that case, the transfer is not started by the driver, but it must be started externally by PPI. * * @param[in] p_instance Pointer to the driver instance structure. * * @return Start task address. */ __STATIC_INLINE uint32_t nrf_drv_spi_start_task_get(nrf_drv_spi_t const * p_instance); /** * @brief Function for returning the address of a END SPIM event. * * A END event can be used to detect the end of a transfer if the @ref NRF_DRV_SPI_FLAG_NO_XFER_EVT_HANDLER * option is used. * * @param[in] p_instance Pointer to the driver instance structure. * * @return END event address. */ __STATIC_INLINE uint32_t nrf_drv_spi_end_event_get(nrf_drv_spi_t const * p_instance); /** * @brief Function for aborting ongoing transfer. * * @param[in] p_instance Pointer to the driver instance structure. */ __STATIC_INLINE void nrf_drv_spi_abort(nrf_drv_spi_t const * p_instance); #ifndef SUPPRESS_INLINE_IMPLEMENTATION #if defined(SPI_PRESENT) && !defined(SPIM_PRESENT) #define NRF_DRV_SPI_WITH_SPI #elif !defined(SPI_PRESENT) && defined(SPIM_PRESENT) #define NRF_DRV_SPI_WITH_SPIM #else #if (NRFX_CHECK(SPI0_ENABLED) && NRFX_CHECK(SPI0_USE_EASY_DMA)) || \ (NRFX_CHECK(SPI1_ENABLED) && NRFX_CHECK(SPI1_USE_EASY_DMA)) || \ (NRFX_CHECK(SPI2_ENABLED) && NRFX_CHECK(SPI2_USE_EASY_DMA)) #define NRF_DRV_SPI_WITH_SPIM #endif #if (NRFX_CHECK(SPI0_ENABLED) && !NRFX_CHECK(SPI0_USE_EASY_DMA)) || \ (NRFX_CHECK(SPI1_ENABLED) && !NRFX_CHECK(SPI1_USE_EASY_DMA)) || \ (NRFX_CHECK(SPI2_ENABLED) && !NRFX_CHECK(SPI2_USE_EASY_DMA)) #define NRF_DRV_SPI_WITH_SPI #endif #endif #if defined(NRF_DRV_SPI_WITH_SPIM) && defined(NRF_DRV_SPI_WITH_SPI) #define NRF_DRV_SPI_USE_SPIM (p_instance->use_easy_dma) #elif defined(NRF_DRV_SPI_WITH_SPIM) #define NRF_DRV_SPI_USE_SPIM true #else #define NRF_DRV_SPI_USE_SPIM false #endif #define NRF_DRV_SPI_USE_SPI (!NRF_DRV_SPI_USE_SPIM) __STATIC_INLINE void nrf_drv_spi_uninit(nrf_drv_spi_t const * p_instance) { if (NRF_DRV_SPI_USE_SPIM) { nrfx_spim_uninit(&p_instance->u.spim); } else if (NRF_DRV_SPI_USE_SPI) { nrfx_spi_uninit(&p_instance->u.spi); } } __STATIC_INLINE ret_code_t nrf_drv_spi_transfer(nrf_drv_spi_t const * const p_instance, uint8_t const * p_tx_buffer, uint8_t tx_buffer_length, uint8_t * p_rx_buffer, uint8_t rx_buffer_length) { ret_code_t result = 0; if (NRF_DRV_SPI_USE_SPIM) { #ifdef SPIM_PRESENT nrfx_spim_xfer_desc_t const spim_xfer_desc = { .p_tx_buffer = p_tx_buffer, .tx_length = tx_buffer_length, .p_rx_buffer = p_rx_buffer, .rx_length = rx_buffer_length, }; result = nrfx_spim_xfer(&p_instance->u.spim, &spim_xfer_desc, 0); #endif } else if (NRF_DRV_SPI_USE_SPI) { #ifdef SPI_PRESENT nrfx_spi_xfer_desc_t const spi_xfer_desc = { .p_tx_buffer = p_tx_buffer, .tx_length = tx_buffer_length, .p_rx_buffer = p_rx_buffer, .rx_length = rx_buffer_length, }; result = nrfx_spi_xfer(&p_instance->u.spi, &spi_xfer_desc, 0); #endif } return result; } __STATIC_INLINE ret_code_t nrf_drv_spi_xfer(nrf_drv_spi_t const * const p_instance, nrf_drv_spi_xfer_desc_t const * p_xfer_desc, uint32_t flags) { ret_code_t result = 0; if (NRF_DRV_SPI_USE_SPIM) { #ifdef SPIM_PRESENT nrfx_spim_xfer_desc_t const spim_xfer_desc = { .p_tx_buffer = p_xfer_desc->p_tx_buffer, .tx_length = p_xfer_desc->tx_length, .p_rx_buffer = p_xfer_desc->p_rx_buffer, .rx_length = p_xfer_desc->rx_length, }; result = nrfx_spim_xfer(&p_instance->u.spim, &spim_xfer_desc, flags); #endif } else if (NRF_DRV_SPI_USE_SPI) { #ifdef SPI_PRESENT nrfx_spi_xfer_desc_t const spi_xfer_desc = { .p_tx_buffer = p_xfer_desc->p_tx_buffer, .tx_length = p_xfer_desc->tx_length, .p_rx_buffer = p_xfer_desc->p_rx_buffer, .rx_length = p_xfer_desc->rx_length, }; result = nrfx_spi_xfer(&p_instance->u.spi, &spi_xfer_desc, flags); #endif } return result; } __STATIC_INLINE uint32_t nrf_drv_spi_start_task_get(nrf_drv_spi_t const * p_instance) { uint32_t result = 0; if (NRF_DRV_SPI_USE_SPIM) { result = nrfx_spim_start_task_get(&p_instance->u.spim); } else if (NRF_DRV_SPI_USE_SPI) { NRFX_ASSERT(false); // not supported result = 0; } return result; } __STATIC_INLINE uint32_t nrf_drv_spi_end_event_get(nrf_drv_spi_t const * p_instance) { uint32_t result = 0; if (NRF_DRV_SPI_USE_SPIM) { result = nrfx_spim_end_event_get(&p_instance->u.spim); } else if (NRF_DRV_SPI_USE_SPI) { NRFX_ASSERT(false); // not supported result = 0; } return result; } __STATIC_INLINE void nrf_drv_spi_abort(nrf_drv_spi_t const * p_instance) { if (NRF_DRV_SPI_USE_SPIM) { nrfx_spim_abort(&p_instance->u.spim); } else if (NRF_DRV_SPI_USE_SPI) { nrfx_spi_abort(&p_instance->u.spi); } } #endif // SUPPRESS_INLINE_IMPLEMENTATION /** @} */ #ifdef __cplusplus } #endif #endif // NRF_DRV_SPI_H__