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- #ifndef NRF_TWIM_H__
- #define NRF_TWIM_H__
- #include <nrfx.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- typedef enum
- {
- NRF_TWIM_TASK_STARTRX = offsetof(NRF_TWIM_Type, TASKS_STARTRX),
- NRF_TWIM_TASK_STARTTX = offsetof(NRF_TWIM_Type, TASKS_STARTTX),
- NRF_TWIM_TASK_STOP = offsetof(NRF_TWIM_Type, TASKS_STOP),
- NRF_TWIM_TASK_SUSPEND = offsetof(NRF_TWIM_Type, TASKS_SUSPEND),
- NRF_TWIM_TASK_RESUME = offsetof(NRF_TWIM_Type, TASKS_RESUME)
- } nrf_twim_task_t;
- typedef enum
- {
- NRF_TWIM_EVENT_STOPPED = offsetof(NRF_TWIM_Type, EVENTS_STOPPED),
- NRF_TWIM_EVENT_ERROR = offsetof(NRF_TWIM_Type, EVENTS_ERROR),
- NRF_TWIM_EVENT_SUSPENDED = 0x148,
- NRF_TWIM_EVENT_RXSTARTED = offsetof(NRF_TWIM_Type, EVENTS_RXSTARTED),
- NRF_TWIM_EVENT_TXSTARTED = offsetof(NRF_TWIM_Type, EVENTS_TXSTARTED),
- NRF_TWIM_EVENT_LASTRX = offsetof(NRF_TWIM_Type, EVENTS_LASTRX),
- NRF_TWIM_EVENT_LASTTX = offsetof(NRF_TWIM_Type, EVENTS_LASTTX)
- } nrf_twim_event_t;
- typedef enum
- {
- NRF_TWIM_SHORT_LASTTX_STARTRX_MASK = TWIM_SHORTS_LASTTX_STARTRX_Msk,
- NRF_TWIM_SHORT_LASTTX_SUSPEND_MASK = TWIM_SHORTS_LASTTX_SUSPEND_Msk,
- NRF_TWIM_SHORT_LASTTX_STOP_MASK = TWIM_SHORTS_LASTTX_STOP_Msk,
- NRF_TWIM_SHORT_LASTRX_STARTTX_MASK = TWIM_SHORTS_LASTRX_STARTTX_Msk,
- NRF_TWIM_SHORT_LASTRX_STOP_MASK = TWIM_SHORTS_LASTRX_STOP_Msk,
- NRF_TWIM_ALL_SHORTS_MASK = TWIM_SHORTS_LASTTX_STARTRX_Msk |
- TWIM_SHORTS_LASTTX_SUSPEND_Msk |
- TWIM_SHORTS_LASTTX_STOP_Msk |
- TWIM_SHORTS_LASTRX_STARTTX_Msk |
- TWIM_SHORTS_LASTRX_STOP_Msk
- } nrf_twim_short_mask_t;
- typedef enum
- {
- NRF_TWIM_INT_STOPPED_MASK = TWIM_INTENSET_STOPPED_Msk,
- NRF_TWIM_INT_ERROR_MASK = TWIM_INTENSET_ERROR_Msk,
- NRF_TWIM_INT_SUSPENDED_MASK = TWIM_INTENSET_SUSPENDED_Msk,
- NRF_TWIM_INT_RXSTARTED_MASK = TWIM_INTENSET_RXSTARTED_Msk,
- NRF_TWIM_INT_TXSTARTED_MASK = TWIM_INTENSET_TXSTARTED_Msk,
- NRF_TWIM_INT_LASTRX_MASK = TWIM_INTENSET_LASTRX_Msk,
- NRF_TWIM_INT_LASTTX_MASK = TWIM_INTENSET_LASTTX_Msk,
- NRF_TWIM_ALL_INTS_MASK = TWIM_INTENSET_STOPPED_Msk |
- TWIM_INTENSET_ERROR_Msk |
- TWIM_INTENSET_SUSPENDED_Msk |
- TWIM_INTENSET_RXSTARTED_Msk |
- TWIM_INTENSET_TXSTARTED_Msk |
- TWIM_INTENSET_LASTRX_Msk |
- TWIM_INTENSET_LASTTX_Msk
- } nrf_twim_int_mask_t;
- typedef enum
- {
- NRF_TWIM_FREQ_100K = TWIM_FREQUENCY_FREQUENCY_K100,
- NRF_TWIM_FREQ_250K = TWIM_FREQUENCY_FREQUENCY_K250,
- NRF_TWIM_FREQ_400K = TWIM_FREQUENCY_FREQUENCY_K400
- } nrf_twim_frequency_t;
- typedef enum
- {
- NRF_TWIM_ERROR_ADDRESS_NACK = TWIM_ERRORSRC_ANACK_Msk,
- NRF_TWIM_ERROR_DATA_NACK = TWIM_ERRORSRC_DNACK_Msk,
- NRF_TWIM_ERROR_OVERRUN = TWIM_ERRORSRC_OVERRUN_Msk
-
- } nrf_twim_error_t;
- __STATIC_INLINE void nrf_twim_task_trigger(NRF_TWIM_Type * p_reg,
- nrf_twim_task_t task);
- __STATIC_INLINE uint32_t * nrf_twim_task_address_get(NRF_TWIM_Type * p_reg,
- nrf_twim_task_t task);
- __STATIC_INLINE void nrf_twim_event_clear(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event);
- __STATIC_INLINE bool nrf_twim_event_check(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event);
- __STATIC_INLINE uint32_t * nrf_twim_event_address_get(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event);
- __STATIC_INLINE void nrf_twim_shorts_enable(NRF_TWIM_Type * p_reg,
- uint32_t mask);
- __STATIC_INLINE void nrf_twim_shorts_disable(NRF_TWIM_Type * p_reg,
- uint32_t mask);
- __STATIC_INLINE void nrf_twim_int_enable(NRF_TWIM_Type * p_reg,
- uint32_t mask);
- __STATIC_INLINE void nrf_twim_int_disable(NRF_TWIM_Type * p_reg,
- uint32_t mask);
- __STATIC_INLINE bool nrf_twim_int_enable_check(NRF_TWIM_Type * p_reg,
- nrf_twim_int_mask_t twim_int);
- #if defined(DPPI_PRESENT) || defined(__NRFX_DOXYGEN__)
- __STATIC_INLINE void nrf_twim_subscribe_set(NRF_TWIM_Type * p_reg,
- nrf_twim_task_t task,
- uint8_t channel);
- __STATIC_INLINE void nrf_twim_subscribe_clear(NRF_TWIM_Type * p_reg,
- nrf_twim_task_t task);
- __STATIC_INLINE void nrf_twim_publish_set(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event,
- uint8_t channel);
- __STATIC_INLINE void nrf_twim_publish_clear(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event);
- #endif
- __STATIC_INLINE void nrf_twim_enable(NRF_TWIM_Type * p_reg);
- __STATIC_INLINE void nrf_twim_disable(NRF_TWIM_Type * p_reg);
- __STATIC_INLINE void nrf_twim_pins_set(NRF_TWIM_Type * p_reg,
- uint32_t scl_pin,
- uint32_t sda_pin);
- __STATIC_INLINE void nrf_twim_frequency_set(NRF_TWIM_Type * p_reg,
- nrf_twim_frequency_t frequency);
- __STATIC_INLINE uint32_t nrf_twim_errorsrc_get_and_clear(NRF_TWIM_Type * p_reg);
- __STATIC_INLINE void nrf_twim_address_set(NRF_TWIM_Type * p_reg,
- uint8_t address);
- __STATIC_INLINE void nrf_twim_tx_buffer_set(NRF_TWIM_Type * p_reg,
- uint8_t const * p_buffer,
- size_t length);
- __STATIC_INLINE void nrf_twim_rx_buffer_set(NRF_TWIM_Type * p_reg,
- uint8_t * p_buffer,
- size_t length);
- __STATIC_INLINE void nrf_twim_shorts_set(NRF_TWIM_Type * p_reg,
- uint32_t mask);
- __STATIC_INLINE uint32_t nrf_twim_shorts_get(NRF_TWIM_Type const * p_reg);
- __STATIC_INLINE size_t nrf_twim_txd_amount_get(NRF_TWIM_Type * p_reg);
- __STATIC_INLINE size_t nrf_twim_rxd_amount_get(NRF_TWIM_Type * p_reg);
- __STATIC_INLINE void nrf_twim_tx_list_enable(NRF_TWIM_Type * p_reg);
- __STATIC_INLINE void nrf_twim_tx_list_disable(NRF_TWIM_Type * p_reg);
- __STATIC_INLINE void nrf_twim_rx_list_enable(NRF_TWIM_Type * p_reg);
- __STATIC_INLINE void nrf_twim_rx_list_disable(NRF_TWIM_Type * p_reg);
- #ifndef SUPPRESS_INLINE_IMPLEMENTATION
- __STATIC_INLINE void nrf_twim_task_trigger(NRF_TWIM_Type * p_reg,
- nrf_twim_task_t task)
- {
- *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)task)) = 0x1UL;
- }
- __STATIC_INLINE uint32_t * nrf_twim_task_address_get(NRF_TWIM_Type * p_reg,
- nrf_twim_task_t task)
- {
- return (uint32_t *)((uint8_t *)p_reg + (uint32_t)task);
- }
- __STATIC_INLINE void nrf_twim_event_clear(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event)
- {
- *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event)) = 0x0UL;
- #if __CORTEX_M == 0x04
- volatile uint32_t dummy = *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event));
- (void)dummy;
- #endif
- }
- __STATIC_INLINE bool nrf_twim_event_check(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event)
- {
- return (bool)*(volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event);
- }
- __STATIC_INLINE uint32_t * nrf_twim_event_address_get(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event)
- {
- return (uint32_t *)((uint8_t *)p_reg + (uint32_t)event);
- }
- __STATIC_INLINE void nrf_twim_shorts_enable(NRF_TWIM_Type * p_reg,
- uint32_t mask)
- {
- p_reg->SHORTS |= mask;
- }
- __STATIC_INLINE void nrf_twim_shorts_disable(NRF_TWIM_Type * p_reg,
- uint32_t mask)
- {
- p_reg->SHORTS &= ~(mask);
- }
- __STATIC_INLINE void nrf_twim_int_enable(NRF_TWIM_Type * p_reg,
- uint32_t mask)
- {
- p_reg->INTENSET = mask;
- }
- __STATIC_INLINE void nrf_twim_int_disable(NRF_TWIM_Type * p_reg,
- uint32_t mask)
- {
- p_reg->INTENCLR = mask;
- }
- __STATIC_INLINE bool nrf_twim_int_enable_check(NRF_TWIM_Type * p_reg,
- nrf_twim_int_mask_t twim_int)
- {
- return (bool)(p_reg->INTENSET & twim_int);
- }
- #if defined(DPPI_PRESENT)
- __STATIC_INLINE void nrf_twim_subscribe_set(NRF_TWIM_Type * p_reg,
- nrf_twim_task_t task,
- uint8_t channel)
- {
- *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) task + 0x80uL)) =
- ((uint32_t)channel | TWIM_SUBSCRIBE_STARTRX_EN_Msk);
- }
- __STATIC_INLINE void nrf_twim_subscribe_clear(NRF_TWIM_Type * p_reg,
- nrf_twim_task_t task)
- {
- *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) task + 0x80uL)) = 0;
- }
- __STATIC_INLINE void nrf_twim_publish_set(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event,
- uint8_t channel)
- {
- *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) event + 0x80uL)) =
- ((uint32_t)channel | TWIM_PUBLISH_STOPPED_EN_Msk);
- }
- __STATIC_INLINE void nrf_twim_publish_clear(NRF_TWIM_Type * p_reg,
- nrf_twim_event_t event)
- {
- *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) event + 0x80uL)) = 0;
- }
- #endif
- __STATIC_INLINE void nrf_twim_enable(NRF_TWIM_Type * p_reg)
- {
- p_reg->ENABLE = (TWIM_ENABLE_ENABLE_Enabled << TWIM_ENABLE_ENABLE_Pos);
- }
- __STATIC_INLINE void nrf_twim_disable(NRF_TWIM_Type * p_reg)
- {
- p_reg->ENABLE = (TWIM_ENABLE_ENABLE_Disabled << TWIM_ENABLE_ENABLE_Pos);
- }
- __STATIC_INLINE void nrf_twim_pins_set(NRF_TWIM_Type * p_reg,
- uint32_t scl_pin,
- uint32_t sda_pin)
- {
- p_reg->PSEL.SCL = scl_pin;
- p_reg->PSEL.SDA = sda_pin;
- }
- __STATIC_INLINE void nrf_twim_frequency_set(NRF_TWIM_Type * p_reg,
- nrf_twim_frequency_t frequency)
- {
- p_reg->FREQUENCY = frequency;
- }
- __STATIC_INLINE uint32_t nrf_twim_errorsrc_get_and_clear(NRF_TWIM_Type * p_reg)
- {
- uint32_t error_source = p_reg->ERRORSRC;
-
- p_reg->ERRORSRC = error_source;
- return error_source;
- }
- __STATIC_INLINE void nrf_twim_address_set(NRF_TWIM_Type * p_reg,
- uint8_t address)
- {
- p_reg->ADDRESS = address;
- }
- __STATIC_INLINE void nrf_twim_tx_buffer_set(NRF_TWIM_Type * p_reg,
- uint8_t const * p_buffer,
- size_t length)
- {
- p_reg->TXD.PTR = (uint32_t)p_buffer;
- p_reg->TXD.MAXCNT = length;
- }
- __STATIC_INLINE void nrf_twim_rx_buffer_set(NRF_TWIM_Type * p_reg,
- uint8_t * p_buffer,
- size_t length)
- {
- p_reg->RXD.PTR = (uint32_t)p_buffer;
- p_reg->RXD.MAXCNT = length;
- }
- __STATIC_INLINE void nrf_twim_shorts_set(NRF_TWIM_Type * p_reg,
- uint32_t mask)
- {
- p_reg->SHORTS = mask;
- }
- __STATIC_INLINE size_t nrf_twim_txd_amount_get(NRF_TWIM_Type * p_reg)
- {
- return p_reg->TXD.AMOUNT;
- }
- __STATIC_INLINE uint32_t nrf_twim_shorts_get(NRF_TWIM_Type const * p_reg)
- {
- return p_reg->SHORTS;
- }
- __STATIC_INLINE size_t nrf_twim_rxd_amount_get(NRF_TWIM_Type * p_reg)
- {
- return p_reg->RXD.AMOUNT;
- }
- __STATIC_INLINE void nrf_twim_tx_list_enable(NRF_TWIM_Type * p_reg)
- {
- p_reg->TXD.LIST = 1;
- }
- __STATIC_INLINE void nrf_twim_tx_list_disable(NRF_TWIM_Type * p_reg)
- {
- p_reg->TXD.LIST = 0;
- }
- __STATIC_INLINE void nrf_twim_rx_list_enable(NRF_TWIM_Type * p_reg)
- {
- p_reg->RXD.LIST = 1;
- }
- __STATIC_INLINE void nrf_twim_rx_list_disable(NRF_TWIM_Type * p_reg)
- {
- p_reg->RXD.LIST = 0;
- }
- #endif
- #ifdef __cplusplus
- }
- #endif
- #endif
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