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- #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
- #define SPI_PIN_DISCONNECTED 0xFFFFFFFF
- #define SPI_DEFAULT_TX_BYTE 0x00
- typedef struct
- {
- NRF_SPI_Type * p_nrf_spi;
- IRQn_Type irq_type;
- uint8_t * p_tx_buffer;
- uint16_t tx_length;
- uint16_t tx_index;
- uint8_t * p_rx_buffer;
- uint16_t rx_length;
- uint16_t rx_index;
- uint16_t max_length;
- uint16_t bytes_count;
- uint8_t pin_slave_select;
- spi_master_event_handler_t callback_event_handler;
- spi_master_state_t state;
- 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
- 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
- #ifdef SPI_MASTER_1_ENABLE
- 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
- #if defined(SPI_MASTER_0_ENABLE) || defined(SPI_MASTER_1_ENABLE)
- 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]);
- }
- 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;
- }
- 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;
- }
- 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;
- }
- 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);
- }
- }
- 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
- }
- 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 )
- {
- 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)))
- {
- 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
- 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
- #ifdef SPI_MASTER_1_ENABLE
- case SPI_MASTER_1:
- spi_master_init_hw_instance(NRF_SPI1, SPI1_TWI1_IRQn, p_spi_instance);
- break;
- #endif
- default:
- break;
- }
-
-
- 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);
-
- 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;
-
- 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);
-
- 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);
-
- p_spi_instance->callback_event_handler = NULL;
-
- p_spi_instance->p_nrf_spi->INTENSET = (SPI_INTENSET_READY_Set << SPI_INTENCLR_READY_Pos);
- NVIC_EnableIRQ(p_spi_instance->irq_type);
-
- p_spi_instance->p_nrf_spi->ENABLE = (SPI_ENABLE_ENABLE_Enabled << SPI_ENABLE_ENABLE_Pos);
-
- p_spi_instance->state = SPI_MASTER_STATE_IDLE;
- return NRF_SUCCESS;
- #else
- return NRF_ERROR_NOT_SUPPORTED;
- #endif
- }
- 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);
-
- 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);
-
- 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;
-
- 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;
-
- spi_master_init_hw_instance(NULL, (IRQn_Type)0, p_spi_instance);
- #else
- return;
- #endif
- }
- __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
- }
- __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
- }
- 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;
- 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));
-
- 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_
- 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)
- {
-
-
- p_spi_instance->abort_flag = true;
- }
- NVIC_EnableIRQ(p_spi_instance->irq_type);
- return NRF_SUCCESS;
- }
- 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;
- 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);
- }
- 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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