123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342 |
- #ifndef NRF_TWI_MNGR_H__
- #define NRF_TWI_MNGR_H__
- #include <stdint.h>
- #include "nrf_drv_twi.h"
- #include "sdk_errors.h"
- #include "nrf_queue.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- #ifndef NRF_TWI_MNGR_BUFFERS_IN_RAM
- #define NRF_TWI_MNGR_BUFFERS_IN_RAM defined(TWIM_PRESENT)
- #endif
- #if NRF_TWI_MNGR_BUFFERS_IN_RAM
- #define NRF_TWI_MNGR_BUFFER_LOC_IND
- #else
- #define NRF_TWI_MNGR_BUFFER_LOC_IND const
- #endif
- #define NRF_TWI_MNGR_NO_STOP 0x01
- #define NRF_TWI_MNGR_WRITE(address, p_data, length, flags) \
- NRF_TWI_MNGR_TRANSFER(NRF_TWI_MNGR_WRITE_OP(address), p_data, length, flags)
- #define NRF_TWI_MNGR_READ(address, p_data, length, flags) \
- NRF_TWI_MNGR_TRANSFER(NRF_TWI_MNGR_READ_OP(address), p_data, length, flags)
- #define NRF_TWI_MNGR_TRANSFER(_operation, _p_data, _length, _flags) \
- { \
- .p_data = (uint8_t *)(_p_data), \
- .length = _length, \
- .operation = _operation, \
- .flags = _flags \
- }
- #define NRF_TWI_MNGR_WRITE_OP(address) (((address) << 1) | 0)
- #define NRF_TWI_MNGR_READ_OP(address) (((address) << 1) | 1)
- #define NRF_TWI_MNGR_IS_READ_OP(operation) ((operation) & 1)
- #define NRF_TWI_MNGR_OP_ADDRESS(operation) ((operation) >> 1)
- typedef void (* nrf_twi_mngr_callback_t)(ret_code_t result, void * p_user_data);
- typedef struct {
- uint8_t * p_data;
- uint8_t length;
- uint8_t operation;
- uint8_t flags;
- } nrf_twi_mngr_transfer_t;
- typedef struct {
- nrf_twi_mngr_callback_t callback;
-
- void * p_user_data;
-
- nrf_twi_mngr_transfer_t const * p_transfers;
-
- uint8_t number_of_transfers;
-
- nrf_drv_twi_config_t const * p_required_twi_cfg;
-
- } nrf_twi_mngr_transaction_t;
- typedef struct {
- nrf_twi_mngr_transaction_t const * volatile p_current_transaction;
-
- nrf_drv_twi_config_t default_configuration;
-
- nrf_drv_twi_config_t const * p_current_configuration;
-
- uint8_t volatile current_transfer_idx;
-
- } nrf_twi_mngr_cb_t;
- typedef struct {
- nrf_twi_mngr_cb_t * p_nrf_twi_mngr_cb;
-
- nrf_queue_t const * p_queue;
-
- nrf_drv_twi_t twi;
-
- } nrf_twi_mngr_t;
- #define NRF_TWI_MNGR_DEF(_nrf_twi_mngr_name, _queue_size, _twi_idx) \
- NRF_QUEUE_DEF(nrf_twi_mngr_transaction_t const *, \
- _nrf_twi_mngr_name##_queue, \
- (_queue_size), \
- NRF_QUEUE_MODE_NO_OVERFLOW); \
- static nrf_twi_mngr_cb_t CONCAT_2(_nrf_twi_mngr_name, _cb); \
- static const nrf_twi_mngr_t _nrf_twi_mngr_name = \
- { \
- .p_nrf_twi_mngr_cb = &CONCAT_2(_nrf_twi_mngr_name, _cb), \
- .p_queue = &_nrf_twi_mngr_name##_queue, \
- .twi = NRF_DRV_TWI_INSTANCE(_twi_idx) \
- }
- ret_code_t nrf_twi_mngr_init(nrf_twi_mngr_t const * p_nrf_twi_mngr,
- nrf_drv_twi_config_t const * p_default_twi_config);
- void nrf_twi_mngr_uninit(nrf_twi_mngr_t const * p_nrf_twi_mngr);
- ret_code_t nrf_twi_mngr_schedule(nrf_twi_mngr_t const * p_nrf_twi_mngr,
- nrf_twi_mngr_transaction_t const * p_transaction);
- ret_code_t nrf_twi_mngr_perform(nrf_twi_mngr_t const * p_nrf_twi_mngr,
- nrf_drv_twi_config_t const * p_config,
- nrf_twi_mngr_transfer_t const * p_transfers,
- uint8_t number_of_transfers,
- void (* user_function)(void));
- __STATIC_INLINE bool nrf_twi_mngr_is_idle(nrf_twi_mngr_t const * p_nrf_twi_mngr);
- #ifndef SUPPRESS_INLINE_IMPLEMENTATION
- __STATIC_INLINE bool nrf_twi_mngr_is_idle(nrf_twi_mngr_t const * p_nrf_twi_mngr)
- {
- return (p_nrf_twi_mngr->p_nrf_twi_mngr_cb->p_current_transaction == NULL);
- }
- #endif
- #ifdef __cplusplus
- }
- #endif
- #endif
|