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Diffstat (limited to 'drivers_nrf/hal/nrf_twis.h')
| -rw-r--r-- | drivers_nrf/hal/nrf_twis.h | 706 |
1 files changed, 706 insertions, 0 deletions
diff --git a/drivers_nrf/hal/nrf_twis.h b/drivers_nrf/hal/nrf_twis.h new file mode 100644 index 0000000..3cd56d6 --- /dev/null +++ b/drivers_nrf/hal/nrf_twis.h @@ -0,0 +1,706 @@ +/** + * Copyright (c) 2015 - 2017, 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. + * + */ +/** + * @ingroup nrf_twis + * @defgroup nrf_twis_hal TWIS HAL + * @{ + * + * @brief @tagAPI52 Hardware access layer for Two Wire Interface Slave with EasyDMA + * (TWIS) peripheral. + */ +#ifndef NRF_TWIS_H__ +#define NRF_TWIS_H__ + +#include "nrf.h" +#include "sdk_config.h" +#include <stdint.h> +#include <stddef.h> +#include <stdbool.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @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); + +/** + * @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; +} + +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__ */ + |