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- /**
- * Copyright (c) 2014 - 2020, 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.
- *
- */
- /**@file
- *
- * @defgroup ser_phy_spi_5W_hw_driver_master spi_5W_master.c
- * @{
- * @ingroup ser_phy_spi_5W_hw_driver_master
- *
- * @brief SPI_5W_RAW hardware driver.
- */
- #include "app_error.h"
- #include "app_util_platform.h"
- #include "nrf_gpio.h"
- #include "nrf.h"
- #include "spi_5W_master.h"
- #include "ser_config_5W_app.h"
- #include "ser_phy_debug_app.h"
- #include "sdk_common.h"
- #define _static
- #define DOUBLE_BUFFERED /**< A flag for enabling double buffering. */
- #define SPI_PIN_DISCONNECTED 0xFFFFFFFF /**< A value used to the PIN deinitialization. */
- #define SPI_DEFAULT_TX_BYTE 0x00 /**< Default byte (used to clock transmission
- from slave to the master) */
- typedef struct
- {
- NRF_SPI_Type * p_nrf_spi; /**< A pointer to the NRF SPI master */
- IRQn_Type irq_type; /**< A type of NVIC IRQn */
- uint8_t * p_tx_buffer; /**< A pointer to TX buffer. */
- uint16_t tx_length; /**< A length of TX buffer. */
- uint16_t tx_index; /**< A index of the current element in the TX buffer. */
- uint8_t * p_rx_buffer; /**< A pointer to RX buffer. */
- uint16_t rx_length; /**< A length RX buffer. */
- uint16_t rx_index; /**< A index of the current element in the RX buffer. */
- uint16_t max_length; /**< Max length (Max of the TX and RX length). */
- uint16_t bytes_count;
- uint8_t pin_slave_select; /**< A pin for Slave Select. */
- spi_master_event_handler_t callback_event_handler; /**< A handler for event callback function. */
- spi_master_state_t state; /**< A state of an instance of SPI master. */
- bool start_flag;
- bool abort_flag;
- } spi_master_instance_t;
- #ifdef _SPI_5W_
- typedef enum
- {
- HOOK_STATE_DISABLED,
- HOOK_STATE_IDLE,
- HOOK_STATE_GUARDED,
- HOOK_STATE_ABORTED,
- HOOK_STATE_RESTARTED,
- HOOK_STATE_PASSING
- } spi_hook_state_t;
- _static spi_master_event_handler_t m_ser_phy_event_handler;
- _static spi_master_hw_instance_t m_spi_master_hw_instance;
- _static spi_hook_state_t m_hook_state = HOOK_STATE_DISABLED;
- #endif
- #ifdef SER_PHY_DEBUG_APP_ENABLE
- _static spi_master_raw_callback_t m_debug_callback;
- #endif
- _static spi_master_instance_t m_spi_master_instances[SPI_MASTER_HW_ENABLED_COUNT];
- static __INLINE spi_master_instance_t * spi_master_get_instance(
- const spi_master_hw_instance_t spi_master_hw_instance);
- static __INLINE void spi_master_send_recv_irq(spi_master_instance_t * const p_spi_instance);
- static __INLINE void spi_master_signal_evt(spi_master_instance_t * const p_spi_instance,
- spi_master_evt_type_t event_type,
- const uint16_t data);
- #ifdef SPI_MASTER_0_ENABLE
- /**
- * @brief SPI0 interrupt handler.
- */
- void SPI0_TWI0_IRQHandler(void)
- {
- if (NRF_SPI0->EVENTS_READY != 0)
- {
- NRF_SPI0->EVENTS_READY = 0;
- spi_master_instance_t * p_spi_instance = spi_master_get_instance(SPI_MASTER_0);
- spi_master_send_recv_irq(p_spi_instance);
- }
- }
- #endif //SPI_MASTER_0_ENABLE
- #ifdef SPI_MASTER_1_ENABLE
- /**
- * @brief SPI0 interrupt handler.
- */
- void SPI1_TWI1_IRQHandler(void)
- {
- if (NRF_SPI1->EVENTS_READY != 0)
- {
- NRF_SPI1->EVENTS_READY = 0;
- spi_master_instance_t * p_spi_instance = spi_master_get_instance(SPI_MASTER_1);
- spi_master_send_recv_irq(p_spi_instance);
- }
- }
- #endif //SPI_MASTER_1_ENABLE
- #if defined(SPI_MASTER_0_ENABLE) || defined(SPI_MASTER_1_ENABLE)
- /**@brief Function for getting an instance of SPI master. */
- static __INLINE spi_master_instance_t * spi_master_get_instance(
- const spi_master_hw_instance_t spi_master_hw_instance)
- {
- return &(m_spi_master_instances[(uint8_t)spi_master_hw_instance]);
- }
- /** @brief Function for initializing instance of SPI master by default values. */
- static __INLINE void spi_master_init_hw_instance(NRF_SPI_Type * p_nrf_spi,
- IRQn_Type irq_type,
- spi_master_instance_t * p_spi_instance)
- {
- APP_ERROR_CHECK_BOOL(p_spi_instance != NULL);
- p_spi_instance->p_nrf_spi = p_nrf_spi;
- p_spi_instance->irq_type = irq_type;
- p_spi_instance->p_tx_buffer = NULL;
- p_spi_instance->tx_length = 0;
- p_spi_instance->tx_index = 0;
- p_spi_instance->p_rx_buffer = NULL;
- p_spi_instance->rx_length = 0;
- p_spi_instance->rx_index = 0;
- p_spi_instance->bytes_count = 0;
- p_spi_instance->max_length = 0;
- p_spi_instance->pin_slave_select = 0;
- p_spi_instance->callback_event_handler = NULL;
- p_spi_instance->state = SPI_MASTER_STATE_DISABLED;
- p_spi_instance->abort_flag = false;
- p_spi_instance->start_flag = false;
- }
- /**@brief Function for initializing TX or RX buffer. */
- static __INLINE void spi_master_buffer_init(uint8_t * const p_buf,
- const uint16_t buf_len,
- uint8_t * * pp_buf,
- uint16_t * const p_buf_len,
- uint16_t * const p_index)
- {
- APP_ERROR_CHECK_BOOL(pp_buf != NULL);
- APP_ERROR_CHECK_BOOL(p_buf_len != NULL);
- APP_ERROR_CHECK_BOOL(p_index != NULL);
- *pp_buf = p_buf;
- *p_buf_len = (p_buf != NULL) ? buf_len : 0;
- *p_index = 0;
- }
- /**@brief Function for releasing TX or RX buffer. */
- static __INLINE void spi_master_buffer_release(uint8_t * * const pp_buf, uint16_t * const p_buf_len)
- {
- APP_ERROR_CHECK_BOOL(pp_buf != NULL);
- APP_ERROR_CHECK_BOOL(p_buf_len != NULL);
- *pp_buf = NULL;
- *p_buf_len = 0;
- }
- /**@brief Function for sending events by callback. */
- static __INLINE void spi_master_signal_evt(spi_master_instance_t * const p_spi_instance,
- spi_master_evt_type_t event_type,
- const uint16_t data)
- {
- APP_ERROR_CHECK_BOOL(p_spi_instance != NULL);
- if (p_spi_instance->callback_event_handler != NULL)
- {
- spi_master_evt_t event = {SPI_MASTER_EVT_TYPE_MAX, 0};
- event.type = event_type;
- event.data = data;
- p_spi_instance->callback_event_handler(event);
- }
- }
- /**@brief Function insert to a TX buffer another byte or two bytes (depends on flag @ref DOUBLE_BUFFERED). */
- static __INLINE void spi_master_send_initial_bytes(spi_master_instance_t * const p_spi_instance)
- {
- APP_ERROR_CHECK_BOOL(p_spi_instance != NULL);
- p_spi_instance->p_nrf_spi->TXD = ((p_spi_instance->p_tx_buffer != NULL) &&
- (p_spi_instance->tx_index < p_spi_instance->tx_length)) ?
- p_spi_instance->p_tx_buffer[p_spi_instance->tx_index] :
- SPI_DEFAULT_TX_BYTE;
- (p_spi_instance->tx_index)++;
- #ifdef DOUBLE_BUFFERED
- if (p_spi_instance->tx_index < p_spi_instance->max_length)
- {
- p_spi_instance->p_nrf_spi->TXD = ((p_spi_instance->p_tx_buffer != NULL) &&
- (p_spi_instance->tx_index < p_spi_instance->tx_length)) ?
- p_spi_instance->p_tx_buffer[p_spi_instance->tx_index] :
- SPI_DEFAULT_TX_BYTE;
- (p_spi_instance->tx_index)++;
- }
- #endif
- }
- /**@brief Function for receiving and sending data from IRQ. (The same for both IRQs). */
- static __INLINE void spi_master_send_recv_irq(spi_master_instance_t * const p_spi_instance)
- {
- uint8_t rx_byte;
- APP_ERROR_CHECK_BOOL(p_spi_instance != NULL);
- APP_ERROR_CHECK_BOOL(p_spi_instance->state == SPI_MASTER_STATE_BUSY);
- p_spi_instance->bytes_count++;
- rx_byte = p_spi_instance->p_nrf_spi->RXD;
- if (p_spi_instance->start_flag)
- {
- p_spi_instance->start_flag = false;
- spi_master_signal_evt(p_spi_instance, SPI_MASTER_EVT_FIRST_BYTE_RECEIVED, (uint16_t)rx_byte);
- }
- else if (p_spi_instance->abort_flag ) //this is tricky, but callback for SPI_MASTER_EVT_FIRST_BYTE_RECEIVED will set this flag for a first byte, which is bad because there is still byte in a buffer
- { //and for a single byte transaction you will get XFERDONE event to restart
- p_spi_instance->abort_flag = false;
- p_spi_instance->state = SPI_MASTER_STATE_ABORTED;
- nrf_gpio_pin_set(p_spi_instance->pin_slave_select);
- spi_master_signal_evt(p_spi_instance, SPI_MASTER_EVT_TRANSFER_ABORTED, 0);
- return;
- }
- if ((p_spi_instance->p_rx_buffer != NULL) &&
- (p_spi_instance->rx_index < p_spi_instance->rx_length))
- {
- p_spi_instance->p_rx_buffer[p_spi_instance->rx_index++] = rx_byte;
- }
- if ((p_spi_instance->tx_index < p_spi_instance->max_length) && (!(p_spi_instance->abort_flag))) //do not TX if you know that there is an abort to be done - this should work for a DOUBLE BUFFERING ???
- {
- p_spi_instance->p_nrf_spi->TXD = ((p_spi_instance->p_tx_buffer != NULL) &&
- (p_spi_instance->tx_index < p_spi_instance->tx_length)) ?
- p_spi_instance->p_tx_buffer[p_spi_instance->tx_index] :
- SPI_DEFAULT_TX_BYTE;
- (p_spi_instance->tx_index)++;
- }
- if (p_spi_instance->bytes_count >= p_spi_instance->max_length)
- {
- APP_ERROR_CHECK_BOOL(p_spi_instance->bytes_count == p_spi_instance->max_length);
- nrf_gpio_pin_set(p_spi_instance->pin_slave_select);
- p_spi_instance->state = SPI_MASTER_STATE_IDLE;
- spi_master_signal_evt(p_spi_instance,
- SPI_MASTER_EVT_TRANSFER_COMPLETED,
- p_spi_instance->tx_index);
- }
- return;
- }
- #endif //defined(SPI_MASTER_0_ENABLE) || defined(SPI_MASTER_1_ENABLE)
- /**
- * @brief Function for opening and initializing a SPI master driver. */
- uint32_t spi_master_open(const spi_master_hw_instance_t spi_master_hw_instance,
- spi_master_config_t const * const p_spi_master_config)
- {
- #if defined(SPI_MASTER_0_ENABLE) || defined(SPI_MASTER_1_ENABLE)
- VERIFY_PARAM_NOT_NULL(p_spi_master_config);
- spi_master_instance_t * p_spi_instance = spi_master_get_instance(spi_master_hw_instance);
- switch (spi_master_hw_instance)
- {
- #ifdef SPI_MASTER_0_ENABLE
- case SPI_MASTER_0:
- spi_master_init_hw_instance(NRF_SPI0, SPI0_TWI0_IRQn, p_spi_instance);
- break;
- #endif //SPI_MASTER_0_ENABLE
- #ifdef SPI_MASTER_1_ENABLE
- case SPI_MASTER_1:
- spi_master_init_hw_instance(NRF_SPI1, SPI1_TWI1_IRQn, p_spi_instance);
- break;
- #endif //SPI_MASTER_1_ENABLE
- default:
- break;
- }
- //A Slave select must be set as high before setting it as output,
- //because during connect it to the pin it causes glitches.
- nrf_gpio_pin_set(p_spi_master_config->SPI_Pin_SS);
- nrf_gpio_cfg_output(p_spi_master_config->SPI_Pin_SS);
- nrf_gpio_pin_set(p_spi_master_config->SPI_Pin_SS);
- //Configure GPIO
- nrf_gpio_cfg_output(p_spi_master_config->SPI_Pin_SCK);
- nrf_gpio_cfg_output(p_spi_master_config->SPI_Pin_MOSI);
- nrf_gpio_cfg_input(p_spi_master_config->SPI_Pin_MISO, NRF_GPIO_PIN_NOPULL);
- p_spi_instance->pin_slave_select = p_spi_master_config->SPI_Pin_SS;
- /* Configure SPI hardware */
- p_spi_instance->p_nrf_spi->PSELSCK = p_spi_master_config->SPI_Pin_SCK;
- p_spi_instance->p_nrf_spi->PSELMOSI = p_spi_master_config->SPI_Pin_MOSI;
- p_spi_instance->p_nrf_spi->PSELMISO = p_spi_master_config->SPI_Pin_MISO;
- p_spi_instance->p_nrf_spi->FREQUENCY = p_spi_master_config->SPI_Freq;
- p_spi_instance->p_nrf_spi->CONFIG =
- (uint32_t)(p_spi_master_config->SPI_CPHA << SPI_CONFIG_CPHA_Pos) |
- (p_spi_master_config->SPI_CPOL << SPI_CONFIG_CPOL_Pos) |
- (p_spi_master_config->SPI_ORDER << SPI_CONFIG_ORDER_Pos);
- /* Clear waiting interrupts and events */
- p_spi_instance->p_nrf_spi->EVENTS_READY = 0;
- NVIC_ClearPendingIRQ(p_spi_instance->irq_type);
- NVIC_SetPriority(p_spi_instance->irq_type, APP_IRQ_PRIORITY_MID);
- /* Clear event handler */
- p_spi_instance->callback_event_handler = NULL;
- /* Enable interrupt */
- p_spi_instance->p_nrf_spi->INTENSET = (SPI_INTENSET_READY_Set << SPI_INTENCLR_READY_Pos);
- NVIC_EnableIRQ(p_spi_instance->irq_type);
- /* Enable SPI hardware */
- p_spi_instance->p_nrf_spi->ENABLE = (SPI_ENABLE_ENABLE_Enabled << SPI_ENABLE_ENABLE_Pos);
- /* Change state to IDLE */
- p_spi_instance->state = SPI_MASTER_STATE_IDLE;
- return NRF_SUCCESS;
- #else
- return NRF_ERROR_NOT_SUPPORTED;
- #endif
- }
- /**
- * @brief Function for closing a SPI master driver.
- */
- void spi_master_close(const spi_master_hw_instance_t spi_master_hw_instance)
- {
- #if defined(SPI_MASTER_0_ENABLE) || defined(SPI_MASTER_1_ENABLE)
- spi_master_instance_t * p_spi_instance = spi_master_get_instance(spi_master_hw_instance);
- /* Disable interrupt */
- NVIC_ClearPendingIRQ(p_spi_instance->irq_type);
- NVIC_DisableIRQ(p_spi_instance->irq_type);
- p_spi_instance->p_nrf_spi->ENABLE = (SPI_ENABLE_ENABLE_Disabled << SPI_ENABLE_ENABLE_Pos);
- /* Set Slave Select pin as input with pull-up. */
- nrf_gpio_pin_set(p_spi_instance->pin_slave_select);
- nrf_gpio_cfg_input(p_spi_instance->pin_slave_select, NRF_GPIO_PIN_PULLUP);
- p_spi_instance->pin_slave_select = (uint8_t)0xFF;
- /* Disconnect pins from SPI hardware */
- p_spi_instance->p_nrf_spi->PSELSCK = (uint32_t)SPI_PIN_DISCONNECTED;
- p_spi_instance->p_nrf_spi->PSELMOSI = (uint32_t)SPI_PIN_DISCONNECTED;
- p_spi_instance->p_nrf_spi->PSELMISO = (uint32_t)SPI_PIN_DISCONNECTED;
- /* Reset to default values */
- spi_master_init_hw_instance(NULL, (IRQn_Type)0, p_spi_instance);
- #else
- return;
- #endif
- }
- /**
- * @brief Function for getting current state of the SPI master driver.
- */
- __INLINE spi_master_state_t spi_master_get_state(
- const spi_master_hw_instance_t spi_master_hw_instance)
- {
- #if defined(SPI_MASTER_0_ENABLE) || defined(SPI_MASTER_1_ENABLE)
- spi_master_instance_t * spi_instance = spi_master_get_instance(spi_master_hw_instance);
- return spi_instance->state;
- #else
- return SPI_MASTER_STATE_DISABLED;
- #endif
- }
- /**
- * @brief Function for event handler registration.
- */
- __INLINE void spi_master_evt_handler_reg(const spi_master_hw_instance_t spi_master_hw_instance,
- spi_master_event_handler_t event_handler)
- {
- #if defined(SPI_MASTER_0_ENABLE) || defined(SPI_MASTER_1_ENABLE)
- spi_master_instance_t * spi_instance = spi_master_get_instance(spi_master_hw_instance);
- spi_instance->callback_event_handler = event_handler;
- #else
- return;
- #endif
- }
- /**
- * @brief Function for transmitting data between SPI master and SPI slave.
- */
- 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)
- spi_master_instance_t * p_spi_instance = spi_master_get_instance(spi_master_hw_instance);
- uint32_t err_code = NRF_SUCCESS;
- uint16_t max_length = 0;
- if (p_spi_instance->state == SPI_MASTER_STATE_IDLE)
- {
- NVIC_DisableIRQ(p_spi_instance->irq_type);
- 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->start_flag = true; //abort_flag should set by abort and cleared only by restart
- p_spi_instance->bytes_count = 0;
- p_spi_instance->max_length = max_length;
- spi_master_buffer_release(&(p_spi_instance->p_tx_buffer), &(p_spi_instance->tx_length));
- spi_master_buffer_release(&(p_spi_instance->p_rx_buffer), &(p_spi_instance->rx_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);
- spi_master_signal_evt(p_spi_instance, SPI_MASTER_EVT_TRANSFER_STARTED, max_length);
- }
- else
- {
- err_code = NRF_ERROR_INVALID_PARAM;
- }
- NVIC_EnableIRQ(p_spi_instance->irq_type);
- }
- else
- {
- err_code = NRF_ERROR_BUSY;
- }
- return err_code;
- #else
- return NRF_ERROR_NOT_SUPPORTED;
- #endif
- }
- #ifdef _SPI_5W_
- /**
- * @brief Function for aborting transfer
- */
- uint32_t spi_master_abort(const spi_master_hw_instance_t spi_master_hw_instance)
- {
- spi_master_instance_t * p_spi_instance = spi_master_get_instance(spi_master_hw_instance);
- NVIC_DisableIRQ(p_spi_instance->irq_type);
- if (p_spi_instance->state == SPI_MASTER_STATE_BUSY)
- {
- //set_flag - but only when there are events pending
- //ignore when in IDLE - must be able to restart a completed transfer
- p_spi_instance->abort_flag = true;
- }
- NVIC_EnableIRQ(p_spi_instance->irq_type);
- return NRF_SUCCESS;
- }
- /**
- * @brief Function for restarting transfer
- */
- uint32_t spi_master_restart(const spi_master_hw_instance_t spi_master_hw_instance)
- {
- spi_master_instance_t * p_spi_instance = spi_master_get_instance(spi_master_hw_instance);
- NVIC_DisableIRQ(p_spi_instance->irq_type);
- spi_master_signal_evt(p_spi_instance, SPI_MASTER_EVT_TRANSFER_RESTARTED, 0);
- p_spi_instance->state = SPI_MASTER_STATE_BUSY;
- p_spi_instance->bytes_count = 0;
- p_spi_instance->tx_index = 0;
- p_spi_instance->rx_index = 0;
- p_spi_instance->start_flag = true;
- p_spi_instance->abort_flag = false; //you should force clearing abort flag - no other way for 1 byte transfer
- nrf_gpio_pin_clear(p_spi_instance->pin_slave_select);
- spi_master_send_initial_bytes(p_spi_instance);
- NVIC_EnableIRQ(p_spi_instance->irq_type);
- return NRF_SUCCESS;
- }
- static void spi_5W_master_event_handler(spi_master_evt_t evt)
- {
- switch (m_hook_state)
- {
- case HOOK_STATE_IDLE:
- if (evt.type == SPI_MASTER_EVT_TRANSFER_STARTED)
- {
- DEBUG_EVT_SPI_MASTER_RAW_XFER_GUARDED(0);
- m_hook_state = HOOK_STATE_GUARDED;
- m_ser_phy_event_handler(evt);
- }
- break;
- case HOOK_STATE_GUARDED:
- if (evt.type == SPI_MASTER_EVT_FIRST_BYTE_RECEIVED)
- {
- if (evt.data == 0)
- {
- DEBUG_EVT_SPI_MASTER_RAW_XFER_PASSED(0);
- m_hook_state = HOOK_STATE_PASSING;
- }
- else
- {
- DEBUG_EVT_SPI_MASTER_RAW_XFER_ABORTED(0);
- m_hook_state = HOOK_STATE_ABORTED;
- (void)spi_master_abort(m_spi_master_hw_instance);
- }
- }
- break;
- case HOOK_STATE_ABORTED:
- if ((evt.type == SPI_MASTER_EVT_TRANSFER_ABORTED) ||
- (evt.type == SPI_MASTER_EVT_TRANSFER_COMPLETED))
- {
- DEBUG_EVT_SPI_MASTER_RAW_XFER_RESTARTED(0);
- m_hook_state = HOOK_STATE_RESTARTED;
- (void)spi_master_restart(m_spi_master_hw_instance);
- }
- break;
- case HOOK_STATE_RESTARTED:
- if (evt.type == SPI_MASTER_EVT_TRANSFER_RESTARTED)
- {
- DEBUG_EVT_SPI_MASTER_RAW_XFER_GUARDED(0);
- m_hook_state = HOOK_STATE_GUARDED;
- }
- break;
- case HOOK_STATE_PASSING:
- if (evt.type == SPI_MASTER_EVT_TRANSFER_COMPLETED)
- {
- m_hook_state = HOOK_STATE_IDLE;
- m_ser_phy_event_handler(evt); //this is the only way to get a signal from complete transaction
- }
- break;
- default:
- break;
- }
- }
- void spi_5W_master_evt_handler_reg(const spi_master_hw_instance_t spi_master_hw_instance,
- spi_master_event_handler_t event_handler)
- {
- m_ser_phy_event_handler = event_handler;
- m_spi_master_hw_instance = spi_master_hw_instance;
- m_hook_state = HOOK_STATE_IDLE;
- spi_master_evt_handler_reg(spi_master_hw_instance, spi_5W_master_event_handler);
- return;
- }
- #endif
- /** @} */
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