/** * Copyright (c) 2015 - 2019, 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_TWIS_H__ #define NRF_TWIS_H__ #include #ifdef __cplusplus extern "C" { #endif /** * @defgroup nrf_twis_hal TWIS HAL * @{ * @ingroup nrf_twis * @brief Hardware access layer for managing the Two Wire Interface Slave with EasyDMA * (TWIS) peripheral. */ /** * @brief TWIS tasks */ typedef enum { /*lint -save -e30*/ NRF_TWIS_TASK_STOP = offsetof(NRF_TWIS_Type, TASKS_STOP), /**< Stop TWIS transaction */ NRF_TWIS_TASK_SUSPEND = offsetof(NRF_TWIS_Type, TASKS_SUSPEND), /**< Suspend TWIS transaction */ NRF_TWIS_TASK_RESUME = offsetof(NRF_TWIS_Type, TASKS_RESUME), /**< Resume TWIS transaction */ NRF_TWIS_TASK_PREPARERX = offsetof(NRF_TWIS_Type, TASKS_PREPARERX), /**< Prepare the TWIS slave to respond to a write command */ NRF_TWIS_TASK_PREPARETX = offsetof(NRF_TWIS_Type, TASKS_PREPARETX) /**< Prepare the TWIS slave to respond to a read command */ /*lint -restore*/ } nrf_twis_task_t; /** * @brief TWIS events */ typedef enum { /*lint -save -e30*/ NRF_TWIS_EVENT_STOPPED = offsetof(NRF_TWIS_Type, EVENTS_STOPPED), /**< TWIS stopped */ NRF_TWIS_EVENT_ERROR = offsetof(NRF_TWIS_Type, EVENTS_ERROR), /**< TWIS error */ NRF_TWIS_EVENT_RXSTARTED = offsetof(NRF_TWIS_Type, EVENTS_RXSTARTED), /**< Receive sequence started */ NRF_TWIS_EVENT_TXSTARTED = offsetof(NRF_TWIS_Type, EVENTS_TXSTARTED), /**< Transmit sequence started */ NRF_TWIS_EVENT_WRITE = offsetof(NRF_TWIS_Type, EVENTS_WRITE), /**< Write command received */ NRF_TWIS_EVENT_READ = offsetof(NRF_TWIS_Type, EVENTS_READ) /**< Read command received */ /*lint -restore*/ } nrf_twis_event_t; /** * @brief TWIS shortcuts */ typedef enum { NRF_TWIS_SHORT_WRITE_SUSPEND_MASK = TWIS_SHORTS_WRITE_SUSPEND_Msk, /**< Shortcut between WRITE event and SUSPEND task */ NRF_TWIS_SHORT_READ_SUSPEND_MASK = TWIS_SHORTS_READ_SUSPEND_Msk, /**< Shortcut between READ event and SUSPEND task */ } nrf_twis_short_mask_t; /** * @brief TWIS interrupts */ typedef enum { NRF_TWIS_INT_STOPPED_MASK = TWIS_INTEN_STOPPED_Msk, /**< Interrupt on STOPPED event */ NRF_TWIS_INT_ERROR_MASK = TWIS_INTEN_ERROR_Msk, /**< Interrupt on ERROR event */ NRF_TWIS_INT_RXSTARTED_MASK = TWIS_INTEN_RXSTARTED_Msk, /**< Interrupt on RXSTARTED event */ NRF_TWIS_INT_TXSTARTED_MASK = TWIS_INTEN_TXSTARTED_Msk, /**< Interrupt on TXSTARTED event */ NRF_TWIS_INT_WRITE_MASK = TWIS_INTEN_WRITE_Msk, /**< Interrupt on WRITE event */ NRF_TWIS_INT_READ_MASK = TWIS_INTEN_READ_Msk, /**< Interrupt on READ event */ } nrf_twis_int_mask_t; /** * @brief TWIS error source */ typedef enum { NRF_TWIS_ERROR_OVERFLOW = TWIS_ERRORSRC_OVERFLOW_Msk, /**< RX buffer overflow detected, and prevented */ NRF_TWIS_ERROR_DATA_NACK = TWIS_ERRORSRC_DNACK_Msk, /**< NACK sent after receiving a data byte */ NRF_TWIS_ERROR_OVERREAD = TWIS_ERRORSRC_OVERREAD_Msk /**< TX buffer over-read detected, and prevented */ } nrf_twis_error_t; /** * @brief TWIS address matching configuration */ typedef enum { NRF_TWIS_CONFIG_ADDRESS0_MASK = TWIS_CONFIG_ADDRESS0_Msk, /**< Enable or disable address matching on ADDRESS[0] */ NRF_TWIS_CONFIG_ADDRESS1_MASK = TWIS_CONFIG_ADDRESS1_Msk, /**< Enable or disable address matching on ADDRESS[1] */ NRF_TWIS_CONFIG_ADDRESS01_MASK = TWIS_CONFIG_ADDRESS0_Msk | TWIS_CONFIG_ADDRESS1_Msk /**< Enable both address matching */ } nrf_twis_config_addr_mask_t; /** * @brief Variable type to hold amount of data for EasyDMA * * Variable of the minimum size that can hold the amount of data to transfer. * * @note * Defined to make it simple to change if EasyDMA would be updated to support more data in * the future devices to. */ typedef uint8_t nrf_twis_amount_t; /** * @brief Smallest variable type to hold TWI address * * Variable of the minimum size that can hold single TWI address. * * @note * Defined to make it simple to change if new TWI would support for example * 10 bit addressing mode. */ typedef uint8_t nrf_twis_address_t; /** * @brief Function for activating a specific TWIS task. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param task Task. */ __STATIC_INLINE void nrf_twis_task_trigger(NRF_TWIS_Type * const p_reg, nrf_twis_task_t task); /** * @brief Function for returning the address of a specific TWIS task register. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param task Task. * * @return Task address. */ __STATIC_INLINE uint32_t nrf_twis_task_address_get( NRF_TWIS_Type const * const p_reg, nrf_twis_task_t task); /** * @brief Function for clearing a specific event. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param event Event. */ __STATIC_INLINE void nrf_twis_event_clear( NRF_TWIS_Type * const p_reg, nrf_twis_event_t event); /** * @brief Function for returning the state of a specific event. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param event Event. * * @retval true If the event is set. * @retval false If the event is not set. */ __STATIC_INLINE bool nrf_twis_event_check( NRF_TWIS_Type const * const p_reg, nrf_twis_event_t event); /** * @brief Function for getting and clearing the state of specific event * * This function checks the state of the event and clears it. * @param[in,out] p_reg Pointer to the peripheral registers structure. * @param event Event. * * @retval true If the event was set. * @retval false If the event was not set. */ __STATIC_INLINE bool nrf_twis_event_get_and_clear( NRF_TWIS_Type * const p_reg, nrf_twis_event_t event); /** * @brief Function for returning the address of a specific TWIS event register. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param event Event. * * @return Address. */ __STATIC_INLINE uint32_t nrf_twis_event_address_get( NRF_TWIS_Type const * const p_reg, nrf_twis_event_t event); /** * @brief Function for setting a shortcut. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param short_mask Shortcuts mask. */ __STATIC_INLINE void nrf_twis_shorts_enable(NRF_TWIS_Type * const p_reg, uint32_t short_mask); /** * @brief Function for clearing shortcuts. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param short_mask Shortcuts mask. */ __STATIC_INLINE void nrf_twis_shorts_disable(NRF_TWIS_Type * const p_reg, uint32_t short_mask); /** * @brief Get the shorts mask * * Function returns shorts register. * @param[in] p_reg Pointer to the peripheral registers structure. * @return Flags of currently enabled shortcuts */ __STATIC_INLINE uint32_t nrf_twis_shorts_get(NRF_TWIS_Type * const p_reg); /** * @brief Function for enabling selected interrupts. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param int_mask Interrupts mask. */ __STATIC_INLINE void nrf_twis_int_enable(NRF_TWIS_Type * const p_reg, uint32_t int_mask); /** * @brief Function for retrieving the state of selected interrupts. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param int_mask Interrupts mask. * * @retval true If any of selected interrupts is enabled. * @retval false If none of selected interrupts is enabled. */ __STATIC_INLINE bool nrf_twis_int_enable_check(NRF_TWIS_Type const * const p_reg, uint32_t int_mask); /** * @brief Function for disabling selected interrupts. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param int_mask Interrupts mask. */ __STATIC_INLINE void nrf_twis_int_disable(NRF_TWIS_Type * const p_reg, uint32_t int_mask); #if defined(DPPI_PRESENT) || defined(__NRFX_DOXYGEN__) /** * @brief Function for setting the subscribe configuration for a given * TWIS task. * * @param[in] p_reg Pointer to the structure of registers of the peripheral. * @param[in] task Task for which to set the configuration. * @param[in] channel Channel through which to subscribe events. */ __STATIC_INLINE void nrf_twis_subscribe_set(NRF_TWIS_Type * p_reg, nrf_twis_task_t task, uint8_t channel); /** * @brief Function for clearing the subscribe configuration for a given * TWIS task. * * @param[in] p_reg Pointer to the structure of registers of the peripheral. * @param[in] task Task for which to clear the configuration. */ __STATIC_INLINE void nrf_twis_subscribe_clear(NRF_TWIS_Type * p_reg, nrf_twis_task_t task); /** * @brief Function for setting the publish configuration for a given * TWIS event. * * @param[in] p_reg Pointer to the structure of registers of the peripheral. * @param[in] event Event for which to set the configuration. * @param[in] channel Channel through which to publish the event. */ __STATIC_INLINE void nrf_twis_publish_set(NRF_TWIS_Type * p_reg, nrf_twis_event_t event, uint8_t channel); /** * @brief Function for clearing the publish configuration for a given * TWIS event. * * @param[in] p_reg Pointer to the structure of registers of the peripheral. * @param[in] event Event for which to clear the configuration. */ __STATIC_INLINE void nrf_twis_publish_clear(NRF_TWIS_Type * p_reg, nrf_twis_event_t event); #endif // defined(DPPI_PRESENT) || defined(__NRFX_DOXYGEN__) /** * @brief Function for retrieving and clearing the TWIS error source. * * @attention Error sources are cleared after read. * @param[in] p_reg Pointer to the peripheral registers structure. * @return Error source mask with values from @ref nrf_twis_error_t. */ __STATIC_INLINE uint32_t nrf_twis_error_source_get_and_clear(NRF_TWIS_Type * const p_reg); /** * @brief Get information which of addresses matched * * Function returns index in the address table * that points to the address that already matched. * @param[in] p_reg Pointer to the peripheral registers structure. * @return Index of matched address */ __STATIC_INLINE uint_fast8_t nrf_twis_match_get(NRF_TWIS_Type const * p_reg); /** * @brief Function for enabling TWIS. * * @param[in] p_reg Pointer to the peripheral registers structure. */ __STATIC_INLINE void nrf_twis_enable(NRF_TWIS_Type * const p_reg); /** * @brief Function for disabling TWIS. * * @param[in] p_reg Pointer to the peripheral registers structure. */ __STATIC_INLINE void nrf_twis_disable(NRF_TWIS_Type * const p_reg); /** * @brief Function for configuring TWIS pins. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param scl SCL pin number. * @param sda SDA pin number. */ __STATIC_INLINE void nrf_twis_pins_set(NRF_TWIS_Type * const p_reg, uint32_t scl, uint32_t sda); /** * @brief Function for setting the receive buffer. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param p_buf Pointer to the buffer for received data. * @param length Maximum number of data bytes to receive. */ __STATIC_INLINE void nrf_twis_rx_buffer_set( NRF_TWIS_Type * const p_reg, uint8_t * p_buf, nrf_twis_amount_t length); /** * @brief Function that prepares TWIS for receiving * * This function sets receive buffer and then sets NRF_TWIS_TASK_PREPARERX task. * @param[in] p_reg Pointer to the peripheral registers structure. * @param p_buf Pointer to the buffer for received data. * @param length Maximum number of data bytes to receive. */ __STATIC_INLINE void nrf_twis_rx_prepare( NRF_TWIS_Type * const p_reg, uint8_t * p_buf, nrf_twis_amount_t length); /** * @brief Function for getting number of bytes received in the last transaction. * * @param[in] p_reg TWIS instance. * @return Amount of bytes received. * */ __STATIC_INLINE nrf_twis_amount_t nrf_twis_rx_amount_get(NRF_TWIS_Type const * const p_reg); /** * @brief Function for setting the transmit buffer. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param p_buf Pointer to the buffer with data to send. * @param length Maximum number of data bytes to transmit. */ __STATIC_INLINE void nrf_twis_tx_buffer_set( NRF_TWIS_Type * const p_reg, uint8_t const * p_buf, nrf_twis_amount_t length); /** * @brief Function that prepares TWIS for transmitting * * This function sets transmit buffer and then sets NRF_TWIS_TASK_PREPARETX task. * @param[in] p_reg Pointer to the peripheral registers structure. * @param p_buf Pointer to the buffer with data to send. * @param length Maximum number of data bytes to transmit. */ __STATIC_INLINE void nrf_twis_tx_prepare( NRF_TWIS_Type * const p_reg, uint8_t const * p_buf, nrf_twis_amount_t length); /** * @brief Function for getting number of bytes transmitted in the last transaction. * * @param[in] p_reg Pointer to the peripheral registers structure. * @return Amount of bytes transmitted. */ __STATIC_INLINE nrf_twis_amount_t nrf_twis_tx_amount_get(NRF_TWIS_Type const * const p_reg); /** * @brief Function for setting slave address * * Function sets the selected address for this TWI interface. * @param[in] p_reg Pointer to the peripheral registers structure. * @param n Index of address to set * @param addr Addres to set * @sa nrf_twis_config_address_set * @sa nrf_twis_config_address_get */ __STATIC_INLINE void nrf_twis_address_set( NRF_TWIS_Type * const p_reg, uint_fast8_t n, nrf_twis_address_t addr); /** * @brief Function for retrieving configured slave address * * Function gets the selected address for this TWI interface. * @param[in] p_reg Pointer to the peripheral registers structure. * @param n Index of address to get */ __STATIC_INLINE nrf_twis_address_t nrf_twis_address_get( NRF_TWIS_Type const * const p_reg, uint_fast8_t n); /** * @brief Function for setting the device address configuration. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param addr_mask Mask of address indexes of what device should answer to. * * @sa nrf_twis_address_set */ __STATIC_INLINE void nrf_twis_config_address_set( NRF_TWIS_Type * const p_reg, nrf_twis_config_addr_mask_t addr_mask); /** * @brief Function for retrieving the device address configuration. * * @param[in] p_reg Pointer to the peripheral registers structure. * * @return Mask of address indexes of what device should answer to. */ __STATIC_INLINE nrf_twis_config_addr_mask_t nrf_twis_config_address_get( NRF_TWIS_Type const * const p_reg); /** * @brief Function for setting the over-read character. * * @param[in] p_reg Pointer to the peripheral registers structure. * @param[in] orc Over-read character. Character clocked out in case of * over-read of the TXD buffer. */ __STATIC_INLINE void nrf_twis_orc_set( NRF_TWIS_Type * const p_reg, uint8_t orc); /** * @brief Function for setting the over-read character. * * @param[in] p_reg Pointer to the peripheral registers structure. * * @return Over-read character configured for selected instance. */ __STATIC_INLINE uint8_t nrf_twis_orc_get(NRF_TWIS_Type const * const p_reg); /** @} */ /* End of nrf_twis_hal */ #ifndef SUPPRESS_INLINE_IMPLEMENTATION /* ------------------------------------------------------------------------------------------------ * Internal functions */ /** * @internal * @brief Internal function for getting task/event register address * * @param[in] p_reg Pointer to the peripheral registers structure. * @oaram offset Offset of the register from the instance beginning * * @attention offset has to be modulo 4 value. In other case we can get hardware fault. * @return Pointer to the register */ __STATIC_INLINE volatile uint32_t* nrf_twis_getRegPtr(NRF_TWIS_Type * const p_reg, uint32_t offset) { return (volatile uint32_t*)((uint8_t *)p_reg + (uint32_t)offset); } /** * @internal * @brief Internal function for getting task/event register address - constant version * * @param[in] p_reg Pointer to the peripheral registers structure. * @oaram offset Offset of the register from the instance beginning * * @attention offset has to be modulo 4 value. In other case we can get hardware fault. * @return Pointer to the register */ __STATIC_INLINE volatile const uint32_t* nrf_twis_getRegPtr_c(NRF_TWIS_Type const * const p_reg, uint32_t offset) { return (volatile const uint32_t*)((uint8_t *)p_reg + (uint32_t)offset); } /* ------------------------------------------------------------------------------------------------ * Interface functions definitions */ void nrf_twis_task_trigger(NRF_TWIS_Type * const p_reg, nrf_twis_task_t task) { *(nrf_twis_getRegPtr(p_reg, (uint32_t)task)) = 1UL; } uint32_t nrf_twis_task_address_get( NRF_TWIS_Type const * const p_reg, nrf_twis_task_t task) { return (uint32_t)nrf_twis_getRegPtr_c(p_reg, (uint32_t)task); } void nrf_twis_event_clear( NRF_TWIS_Type * const p_reg, nrf_twis_event_t event) { *(nrf_twis_getRegPtr(p_reg, (uint32_t)event)) = 0UL; #if __CORTEX_M == 0x04 volatile uint32_t dummy = *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event)); (void)dummy; #endif } bool nrf_twis_event_check( NRF_TWIS_Type const * const p_reg, nrf_twis_event_t event) { return (bool)*nrf_twis_getRegPtr_c(p_reg, (uint32_t)event); } bool nrf_twis_event_get_and_clear( NRF_TWIS_Type * const p_reg, nrf_twis_event_t event) { bool ret = nrf_twis_event_check(p_reg, event); if (ret) { nrf_twis_event_clear(p_reg, event); } return ret; } uint32_t nrf_twis_event_address_get( NRF_TWIS_Type const * const p_reg, nrf_twis_event_t event) { return (uint32_t)nrf_twis_getRegPtr_c(p_reg, (uint32_t)event); } void nrf_twis_shorts_enable(NRF_TWIS_Type * const p_reg, uint32_t short_mask) { p_reg->SHORTS |= short_mask; } void nrf_twis_shorts_disable(NRF_TWIS_Type * const p_reg, uint32_t short_mask) { if (~0U == short_mask) { /* Optimized version for "disable all" */ p_reg->SHORTS = 0; } else { p_reg->SHORTS &= ~short_mask; } } uint32_t nrf_twis_shorts_get(NRF_TWIS_Type * const p_reg) { return p_reg->SHORTS; } void nrf_twis_int_enable(NRF_TWIS_Type * const p_reg, uint32_t int_mask) { p_reg->INTENSET = int_mask; } bool nrf_twis_int_enable_check(NRF_TWIS_Type const * const p_reg, uint32_t int_mask) { return (bool)(p_reg->INTENSET & int_mask); } void nrf_twis_int_disable(NRF_TWIS_Type * const p_reg, uint32_t int_mask) { p_reg->INTENCLR = int_mask; } #if defined(DPPI_PRESENT) __STATIC_INLINE void nrf_twis_subscribe_set(NRF_TWIS_Type * p_reg, nrf_twis_task_t task, uint8_t channel) { *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) task + 0x80uL)) = ((uint32_t)channel | TWIS_SUBSCRIBE_STOP_EN_Msk); } __STATIC_INLINE void nrf_twis_subscribe_clear(NRF_TWIS_Type * p_reg, nrf_twis_task_t task) { *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) task + 0x80uL)) = 0; } __STATIC_INLINE void nrf_twis_publish_set(NRF_TWIS_Type * p_reg, nrf_twis_event_t event, uint8_t channel) { *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) event + 0x80uL)) = ((uint32_t)channel | TWIS_PUBLISH_STOPPED_EN_Msk); } __STATIC_INLINE void nrf_twis_publish_clear(NRF_TWIS_Type * p_reg, nrf_twis_event_t event) { *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) event + 0x80uL)) = 0; } #endif // defined(DPPI_PRESENT) uint32_t nrf_twis_error_source_get_and_clear(NRF_TWIS_Type * const p_reg) { uint32_t ret = p_reg->ERRORSRC; p_reg->ERRORSRC = ret; return ret; } uint_fast8_t nrf_twis_match_get(NRF_TWIS_Type const * p_reg) { return (uint_fast8_t)p_reg->MATCH; } void nrf_twis_enable(NRF_TWIS_Type * const p_reg) { p_reg->ENABLE = (TWIS_ENABLE_ENABLE_Enabled << TWIS_ENABLE_ENABLE_Pos); } void nrf_twis_disable(NRF_TWIS_Type * const p_reg) { p_reg->ENABLE = (TWIS_ENABLE_ENABLE_Disabled << TWIS_ENABLE_ENABLE_Pos); } void nrf_twis_pins_set(NRF_TWIS_Type * const p_reg, uint32_t scl, uint32_t sda) { p_reg->PSEL.SCL = scl; p_reg->PSEL.SDA = sda; } void nrf_twis_rx_buffer_set( NRF_TWIS_Type * const p_reg, uint8_t * p_buf, nrf_twis_amount_t length) { p_reg->RXD.PTR = (uint32_t)p_buf; p_reg->RXD.MAXCNT = length; } __STATIC_INLINE void nrf_twis_rx_prepare( NRF_TWIS_Type * const p_reg, uint8_t * p_buf, nrf_twis_amount_t length) { nrf_twis_rx_buffer_set(p_reg, p_buf, length); nrf_twis_task_trigger(p_reg, NRF_TWIS_TASK_PREPARERX); } nrf_twis_amount_t nrf_twis_rx_amount_get(NRF_TWIS_Type const * const p_reg) { return (nrf_twis_amount_t)p_reg->RXD.AMOUNT; } void nrf_twis_tx_buffer_set( NRF_TWIS_Type * const p_reg, uint8_t const * p_buf, nrf_twis_amount_t length) { p_reg->TXD.PTR = (uint32_t)p_buf; p_reg->TXD.MAXCNT = length; } __STATIC_INLINE void nrf_twis_tx_prepare( NRF_TWIS_Type * const p_reg, uint8_t const * p_buf, nrf_twis_amount_t length) { nrf_twis_tx_buffer_set(p_reg, p_buf, length); nrf_twis_task_trigger(p_reg, NRF_TWIS_TASK_PREPARETX); } nrf_twis_amount_t nrf_twis_tx_amount_get(NRF_TWIS_Type const * const p_reg) { return (nrf_twis_amount_t)p_reg->TXD.AMOUNT; } void nrf_twis_address_set( NRF_TWIS_Type * const p_reg, uint_fast8_t n, nrf_twis_address_t addr) { p_reg->ADDRESS[n] = addr; } nrf_twis_address_t nrf_twis_address_get( NRF_TWIS_Type const * const p_reg, uint_fast8_t n) { return (nrf_twis_address_t)p_reg->ADDRESS[n]; } void nrf_twis_config_address_set( NRF_TWIS_Type * const p_reg, nrf_twis_config_addr_mask_t addr_mask) { /* This is the only configuration in TWIS - just write it without masking */ p_reg->CONFIG = addr_mask; } nrf_twis_config_addr_mask_t nrf_twis_config_address_get(NRF_TWIS_Type const * const p_reg) { return (nrf_twis_config_addr_mask_t)(p_reg->CONFIG & TWIS_ADDRESS_ADDRESS_Msk); } void nrf_twis_orc_set( NRF_TWIS_Type * const p_reg, uint8_t orc) { p_reg->ORC = orc; } uint8_t nrf_twis_orc_get(NRF_TWIS_Type const * const p_reg) { return (uint8_t)p_reg->ORC; } #endif /* SUPPRESS_INLINE_IMPLEMENTATION */ #ifdef __cplusplus } #endif #endif /* NRF_TWIS_H__ */