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Diffstat (limited to 'drivers_nrf/hal/nrf_i2s.h')
| -rw-r--r-- | drivers_nrf/hal/nrf_i2s.h | 563 |
1 files changed, 563 insertions, 0 deletions
diff --git a/drivers_nrf/hal/nrf_i2s.h b/drivers_nrf/hal/nrf_i2s.h new file mode 100644 index 0000000..d548557 --- /dev/null +++ b/drivers_nrf/hal/nrf_i2s.h @@ -0,0 +1,563 @@ +/** + * 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. + * + */ +/** + * @defgroup nrf_i2s_hal I2S HAL + * @{ + * @ingroup nrf_i2s + * + * @brief @tagAPI52 Hardware access layer for managing the Inter-IC Sound (I2S) peripheral. + */ + +#ifndef NRF_I2S_H__ +#define NRF_I2S_H__ + +#include <stddef.h> +#include <stdbool.h> +#include <stdint.h> + +#include "nrf.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +/** + * @brief This value can be provided as a parameter for the @ref nrf_i2s_pins_set + * function call to specify that a given I2S signal (SDOUT, SDIN, or MCK) + * shall not be connected to a physical pin. + */ +#define NRF_I2S_PIN_NOT_CONNECTED 0xFFFFFFFF + + +/** + * @brief I2S tasks. + */ +typedef enum +{ + /*lint -save -e30*/ + NRF_I2S_TASK_START = offsetof(NRF_I2S_Type, TASKS_START), ///< Starts continuous I2S transfer. Also starts the MCK generator if this is enabled. + NRF_I2S_TASK_STOP = offsetof(NRF_I2S_Type, TASKS_STOP) ///< Stops I2S transfer. Also stops the MCK generator. + /*lint -restore*/ +} nrf_i2s_task_t; + +/** + * @brief I2S events. + */ +typedef enum +{ + /*lint -save -e30*/ + NRF_I2S_EVENT_RXPTRUPD = offsetof(NRF_I2S_Type, EVENTS_RXPTRUPD), ///< The RXD.PTR register has been copied to internal double-buffers. + NRF_I2S_EVENT_TXPTRUPD = offsetof(NRF_I2S_Type, EVENTS_TXPTRUPD), ///< The TXD.PTR register has been copied to internal double-buffers. + NRF_I2S_EVENT_STOPPED = offsetof(NRF_I2S_Type, EVENTS_STOPPED) ///< I2S transfer stopped. + /*lint -restore*/ +} nrf_i2s_event_t; + +/** + * @brief I2S interrupts. + */ +typedef enum +{ + NRF_I2S_INT_RXPTRUPD_MASK = I2S_INTENSET_RXPTRUPD_Msk, ///< Interrupt on RXPTRUPD event. + NRF_I2S_INT_TXPTRUPD_MASK = I2S_INTENSET_TXPTRUPD_Msk, ///< Interrupt on TXPTRUPD event. + NRF_I2S_INT_STOPPED_MASK = I2S_INTENSET_STOPPED_Msk ///< Interrupt on STOPPED event. +} nrf_i2s_int_mask_t; + +/** + * @brief I2S modes of operation. + */ +typedef enum +{ + NRF_I2S_MODE_MASTER = I2S_CONFIG_MODE_MODE_Master, ///< Master mode. + NRF_I2S_MODE_SLAVE = I2S_CONFIG_MODE_MODE_Slave ///< Slave mode. +} nrf_i2s_mode_t; + +/** + * @brief I2S master clock generator settings. + */ +typedef enum +{ + NRF_I2S_MCK_DISABLED = 0, ///< MCK disabled. + // [conversion to 'int' needed to prevent compilers from complaining + // that the provided value (0x80000000UL) is out of range of "int"] + NRF_I2S_MCK_32MDIV2 = (int)I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV2, ///< 32 MHz / 2 = 16.0 MHz. + NRF_I2S_MCK_32MDIV3 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV3, ///< 32 MHz / 3 = 10.6666667 MHz. + NRF_I2S_MCK_32MDIV4 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV4, ///< 32 MHz / 4 = 8.0 MHz. + NRF_I2S_MCK_32MDIV5 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV5, ///< 32 MHz / 5 = 6.4 MHz. + NRF_I2S_MCK_32MDIV6 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV6, ///< 32 MHz / 6 = 5.3333333 MHz. + NRF_I2S_MCK_32MDIV8 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV8, ///< 32 MHz / 8 = 4.0 MHz. + NRF_I2S_MCK_32MDIV10 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV10, ///< 32 MHz / 10 = 3.2 MHz. + NRF_I2S_MCK_32MDIV11 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV11, ///< 32 MHz / 11 = 2.9090909 MHz. + NRF_I2S_MCK_32MDIV15 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV15, ///< 32 MHz / 15 = 2.1333333 MHz. + NRF_I2S_MCK_32MDIV16 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV16, ///< 32 MHz / 16 = 2.0 MHz. + NRF_I2S_MCK_32MDIV21 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV21, ///< 32 MHz / 21 = 1.5238095 MHz. + NRF_I2S_MCK_32MDIV23 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV23, ///< 32 MHz / 23 = 1.3913043 MHz. + NRF_I2S_MCK_32MDIV31 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV31, ///< 32 MHz / 31 = 1.0322581 MHz. + NRF_I2S_MCK_32MDIV42 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV42, ///< 32 MHz / 42 = 0.7619048 MHz. + NRF_I2S_MCK_32MDIV63 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV63, ///< 32 MHz / 63 = 0.5079365 MHz. + NRF_I2S_MCK_32MDIV125 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV125 ///< 32 MHz / 125 = 0.256 MHz. +} nrf_i2s_mck_t; + +/** + * @brief I2S MCK/LRCK ratios. + */ +typedef enum +{ + NRF_I2S_RATIO_32X = I2S_CONFIG_RATIO_RATIO_32X, ///< LRCK = MCK / 32. + NRF_I2S_RATIO_48X = I2S_CONFIG_RATIO_RATIO_48X, ///< LRCK = MCK / 48. + NRF_I2S_RATIO_64X = I2S_CONFIG_RATIO_RATIO_64X, ///< LRCK = MCK / 64. + NRF_I2S_RATIO_96X = I2S_CONFIG_RATIO_RATIO_96X, ///< LRCK = MCK / 96. + NRF_I2S_RATIO_128X = I2S_CONFIG_RATIO_RATIO_128X, ///< LRCK = MCK / 128. + NRF_I2S_RATIO_192X = I2S_CONFIG_RATIO_RATIO_192X, ///< LRCK = MCK / 192. + NRF_I2S_RATIO_256X = I2S_CONFIG_RATIO_RATIO_256X, ///< LRCK = MCK / 256. + NRF_I2S_RATIO_384X = I2S_CONFIG_RATIO_RATIO_384X, ///< LRCK = MCK / 384. + NRF_I2S_RATIO_512X = I2S_CONFIG_RATIO_RATIO_512X ///< LRCK = MCK / 512. +} nrf_i2s_ratio_t; + +/** + * @brief I2S sample widths. + */ +typedef enum +{ + NRF_I2S_SWIDTH_8BIT = I2S_CONFIG_SWIDTH_SWIDTH_8Bit, ///< 8 bit. + NRF_I2S_SWIDTH_16BIT = I2S_CONFIG_SWIDTH_SWIDTH_16Bit, ///< 16 bit. + NRF_I2S_SWIDTH_24BIT = I2S_CONFIG_SWIDTH_SWIDTH_24Bit ///< 24 bit. +} nrf_i2s_swidth_t; + +/** + * @brief I2S alignments of sample within a frame. + */ +typedef enum +{ + NRF_I2S_ALIGN_LEFT = I2S_CONFIG_ALIGN_ALIGN_Left, ///< Left-aligned. + NRF_I2S_ALIGN_RIGHT = I2S_CONFIG_ALIGN_ALIGN_Right ///< Right-aligned. +} nrf_i2s_align_t; + +/** + * @brief I2S frame formats. + */ +typedef enum +{ + NRF_I2S_FORMAT_I2S = I2S_CONFIG_FORMAT_FORMAT_I2S, ///< Original I2S format. + NRF_I2S_FORMAT_ALIGNED = I2S_CONFIG_FORMAT_FORMAT_Aligned ///< Alternate (left- or right-aligned) format. +} nrf_i2s_format_t; + +/** + * @brief I2S enabled channels. + */ +typedef enum +{ + NRF_I2S_CHANNELS_STEREO = I2S_CONFIG_CHANNELS_CHANNELS_Stereo, ///< Stereo. + NRF_I2S_CHANNELS_LEFT = I2S_CONFIG_CHANNELS_CHANNELS_Left, ///< Left only. + NRF_I2S_CHANNELS_RIGHT = I2S_CONFIG_CHANNELS_CHANNELS_Right ///< Right only. +} nrf_i2s_channels_t; + + +/** + * @brief Function for activating a specific I2S task. + * + * @param[in] p_i2s I2S instance. + * @param[in] task Task to activate. + */ +__STATIC_INLINE void nrf_i2s_task_trigger(NRF_I2S_Type * p_i2s, + nrf_i2s_task_t task); + +/** + * @brief Function for getting the address of a specific I2S task register. + * + * @param[in] p_i2s I2S instance. + * @param[in] task Requested task. + * + * @return Address of the specified task register. + */ +__STATIC_INLINE uint32_t nrf_i2s_task_address_get(NRF_I2S_Type const * p_i2s, + nrf_i2s_task_t task); + +/** + * @brief Function for clearing a specific I2S event. + * + * @param[in] p_i2s I2S instance. + * @param[in] event Event to clear. + */ +__STATIC_INLINE void nrf_i2s_event_clear(NRF_I2S_Type * p_i2s, + nrf_i2s_event_t event); + +/** + * @brief Function for checking the state of a specific I2S event. + * + * @param[in] p_i2s I2S instance. + * @param[in] event Event to check. + * + * @retval true If the event is set. + * @retval false If the event is not set. + */ +__STATIC_INLINE bool nrf_i2s_event_check(NRF_I2S_Type const * p_i2s, + nrf_i2s_event_t event); + +/** + * @brief Function for getting the address of a specific I2S event register. + * + * @param[in] p_i2s I2S instance. + * @param[in] event Requested event. + * + * @return Address of the specified event register. + */ +__STATIC_INLINE uint32_t nrf_i2s_event_address_get(NRF_I2S_Type const * p_i2s, + nrf_i2s_event_t event); + +/** + * @brief Function for enabling specified interrupts. + * + * @param[in] p_i2s I2S instance. + * @param[in] mask Interrupts to enable. + */ +__STATIC_INLINE void nrf_i2s_int_enable(NRF_I2S_Type * p_i2s, uint32_t mask); + +/** + * @brief Function for disabling specified interrupts. + * + * @param[in] p_i2s I2S instance. + * @param[in] mask Interrupts to disable. + */ +__STATIC_INLINE void nrf_i2s_int_disable(NRF_I2S_Type * p_i2s, uint32_t mask); + +/** + * @brief Function for retrieving the state of a given interrupt. + * + * @param[in] p_i2s I2S instance. + * @param[in] i2s_int Interrupt to check. + * + * @retval true If the interrupt is enabled. + * @retval false If the interrupt is not enabled. + */ +__STATIC_INLINE bool nrf_i2s_int_enable_check(NRF_I2S_Type const * p_i2s, + nrf_i2s_int_mask_t i2s_int); + +/** + * @brief Function for enabling the I2S peripheral. + * + * @param[in] p_i2s I2S instance. + */ +__STATIC_INLINE void nrf_i2s_enable(NRF_I2S_Type * p_i2s); + +/** + * @brief Function for disabling the I2S peripheral. + * + * @param[in] p_i2s I2S instance. + */ +__STATIC_INLINE void nrf_i2s_disable(NRF_I2S_Type * p_i2s); + +/** + * @brief Function for configuring I2S pins. + * + * Usage of the SDOUT, SDIN, and MCK signals is optional. + * If a given signal is not needed, pass the @ref NRF_I2S_PIN_NOT_CONNECTED + * value instead of its pin number. + * + * @param[in] p_i2s I2S instance. + * @param[in] sck_pin SCK pin number. + * @param[in] lrck_pin LRCK pin number. + * @param[in] mck_pin MCK pin number. + * @param[in] sdout_pin SDOUT pin number. + * @param[in] sdin_pin SDIN pin number. + */ +__STATIC_INLINE void nrf_i2s_pins_set(NRF_I2S_Type * p_i2s, + uint32_t sck_pin, + uint32_t lrck_pin, + uint32_t mck_pin, + uint32_t sdout_pin, + uint32_t sdin_pin); + +/** + * @brief Function for setting the I2S peripheral configuration. + * + * @param[in] p_i2s I2S instance. + * @param[in] mode Mode of operation (master or slave). + * @param[in] format I2S frame format. + * @param[in] alignment Alignment of sample within a frame. + * @param[in] sample_width Sample width. + * @param[in] channels Enabled channels. + * @param[in] mck_setup Master clock generator setup. + * @param[in] ratio MCK/LRCK ratio. + * + * @retval true If the configuration has been set successfully. + * @retval false If the requested configuration is not allowed. + */ +__STATIC_INLINE bool nrf_i2s_configure(NRF_I2S_Type * p_i2s, + nrf_i2s_mode_t mode, + nrf_i2s_format_t format, + nrf_i2s_align_t alignment, + nrf_i2s_swidth_t sample_width, + nrf_i2s_channels_t channels, + nrf_i2s_mck_t mck_setup, + nrf_i2s_ratio_t ratio); + +/** + * @brief Function for setting up the I2S transfer. + * + * This function sets up the RX and TX buffers and enables reception and/or + * transmission accordingly. If the transfer in a given direction is not + * required, pass NULL instead of the pointer to the corresponding buffer. + * + * @param[in] p_i2s I2S instance. + * @param[in] size Size of the buffers (in 32-bit words). + * @param[in] p_rx_buffer Pointer to the receive buffer. + * Pass NULL to disable reception. + * @param[in] p_tx_buffer Pointer to the transmit buffer. + * Pass NULL to disable transmission. + */ +__STATIC_INLINE void nrf_i2s_transfer_set(NRF_I2S_Type * p_i2s, + uint16_t size, + uint32_t * p_rx_buffer, + uint32_t const * p_tx_buffer); + +/** + * @brief Function for setting the pointer to the receive buffer. + * + * @note The size of the buffer can be set only by calling + * @ref nrf_i2s_transfer_set. + * + * @param[in] p_i2s I2S instance. + * @param[in] p_buffer Pointer to the receive buffer. + */ +__STATIC_INLINE void nrf_i2s_rx_buffer_set(NRF_I2S_Type * p_i2s, + uint32_t * p_buffer); + +/** + * @brief Function for getting the pointer to the receive buffer. + * + * @param[in] p_i2s I2S instance. + * + * @return Pointer to the receive buffer. + */ +__STATIC_INLINE uint32_t * nrf_i2s_rx_buffer_get(NRF_I2S_Type const * p_i2s); + +/** + * @brief Function for setting the pointer to the transmit buffer. + * + * @note The size of the buffer can be set only by calling + * @ref nrf_i2s_transfer_set. + * + * @param[in] p_i2s I2S instance. + * @param[in] p_buffer Pointer to the transmit buffer. + */ +__STATIC_INLINE void nrf_i2s_tx_buffer_set(NRF_I2S_Type * p_i2s, + uint32_t const * p_buffer); + +/** + * @brief Function for getting the pointer to the transmit buffer. + * + * @param[in] p_i2s I2S instance. + * + * @return Pointer to the transmit buffer. + */ +__STATIC_INLINE uint32_t * nrf_i2s_tx_buffer_get(NRF_I2S_Type const * p_i2s); + + +#ifndef SUPPRESS_INLINE_IMPLEMENTATION + +__STATIC_INLINE void nrf_i2s_task_trigger(NRF_I2S_Type * p_i2s, + nrf_i2s_task_t task) +{ + *((volatile uint32_t *)((uint8_t *)p_i2s + (uint32_t)task)) = 0x1UL; +} + +__STATIC_INLINE uint32_t nrf_i2s_task_address_get(NRF_I2S_Type const * p_i2s, + nrf_i2s_task_t task) +{ + return ((uint32_t)p_i2s + (uint32_t)task); +} + +__STATIC_INLINE void nrf_i2s_event_clear(NRF_I2S_Type * p_i2s, + nrf_i2s_event_t event) +{ + *((volatile uint32_t *)((uint8_t *)p_i2s + (uint32_t)event)) = 0x0UL; +#if __CORTEX_M == 0x04 + volatile uint32_t dummy = *((volatile uint32_t *)((uint8_t *)p_i2s + (uint32_t)event)); + (void)dummy; +#endif +} + +__STATIC_INLINE bool nrf_i2s_event_check(NRF_I2S_Type const * p_i2s, + nrf_i2s_event_t event) +{ + return (bool)*(volatile uint32_t *)((uint8_t *)p_i2s + (uint32_t)event); +} + +__STATIC_INLINE uint32_t nrf_i2s_event_address_get(NRF_I2S_Type const * p_i2s, + nrf_i2s_event_t event) +{ + return ((uint32_t)p_i2s + (uint32_t)event); +} + +__STATIC_INLINE void nrf_i2s_int_enable(NRF_I2S_Type * p_i2s, uint32_t mask) +{ + p_i2s->INTENSET = mask; +} + +__STATIC_INLINE void nrf_i2s_int_disable(NRF_I2S_Type * p_i2s, uint32_t mask) +{ + p_i2s->INTENCLR = mask; +} + +__STATIC_INLINE bool nrf_i2s_int_enable_check(NRF_I2S_Type const * p_i2s, + nrf_i2s_int_mask_t i2s_int) +{ + return (bool)(p_i2s->INTENSET & i2s_int); +} + +__STATIC_INLINE void nrf_i2s_enable(NRF_I2S_Type * p_i2s) +{ + p_i2s->ENABLE = (I2S_ENABLE_ENABLE_Enabled << I2S_ENABLE_ENABLE_Pos); +} + +__STATIC_INLINE void nrf_i2s_disable(NRF_I2S_Type * p_i2s) +{ + p_i2s->ENABLE = (I2S_ENABLE_ENABLE_Disabled << I2S_ENABLE_ENABLE_Pos); +} + +__STATIC_INLINE void nrf_i2s_pins_set(NRF_I2S_Type * p_i2s, + uint32_t sck_pin, + uint32_t lrck_pin, + uint32_t mck_pin, + uint32_t sdout_pin, + uint32_t sdin_pin) +{ + p_i2s->PSEL.SCK = sck_pin; + p_i2s->PSEL.LRCK = lrck_pin; + p_i2s->PSEL.MCK = mck_pin; + p_i2s->PSEL.SDOUT = sdout_pin; + p_i2s->PSEL.SDIN = sdin_pin; +} + +__STATIC_INLINE bool nrf_i2s_configure(NRF_I2S_Type * p_i2s, + nrf_i2s_mode_t mode, + nrf_i2s_format_t format, + nrf_i2s_align_t alignment, + nrf_i2s_swidth_t sample_width, + nrf_i2s_channels_t channels, + nrf_i2s_mck_t mck_setup, + nrf_i2s_ratio_t ratio) +{ + if (mode == NRF_I2S_MODE_MASTER) + { + // The MCK/LRCK ratio shall be a multiple of 2 * sample width. + if (((sample_width == NRF_I2S_SWIDTH_16BIT) && + (ratio == NRF_I2S_RATIO_48X)) + || + ((sample_width == NRF_I2S_SWIDTH_24BIT) && + ((ratio == NRF_I2S_RATIO_32X) || + (ratio == NRF_I2S_RATIO_64X) || + (ratio == NRF_I2S_RATIO_128X) || + (ratio == NRF_I2S_RATIO_256X) || + (ratio == NRF_I2S_RATIO_512X)))) + { + return false; + } + } + + p_i2s->CONFIG.MODE = mode; + p_i2s->CONFIG.FORMAT = format; + p_i2s->CONFIG.ALIGN = alignment; + p_i2s->CONFIG.SWIDTH = sample_width; + p_i2s->CONFIG.CHANNELS = channels; + p_i2s->CONFIG.RATIO = ratio; + + if (mck_setup == NRF_I2S_MCK_DISABLED) + { + p_i2s->CONFIG.MCKEN = + (I2S_CONFIG_MCKEN_MCKEN_Disabled << I2S_CONFIG_MCKEN_MCKEN_Pos); + } + else + { + p_i2s->CONFIG.MCKFREQ = mck_setup; + p_i2s->CONFIG.MCKEN = + (I2S_CONFIG_MCKEN_MCKEN_Enabled << I2S_CONFIG_MCKEN_MCKEN_Pos); + } + + return true; +} + +__STATIC_INLINE void nrf_i2s_transfer_set(NRF_I2S_Type * p_i2s, + uint16_t size, + uint32_t * p_buffer_rx, + uint32_t const * p_buffer_tx) +{ + p_i2s->RXTXD.MAXCNT = size; + + nrf_i2s_rx_buffer_set(p_i2s, p_buffer_rx); + p_i2s->CONFIG.RXEN = (p_buffer_rx != NULL) ? 1 : 0; + + nrf_i2s_tx_buffer_set(p_i2s, p_buffer_tx); + p_i2s->CONFIG.TXEN = (p_buffer_tx != NULL) ? 1 : 0; +} + +__STATIC_INLINE void nrf_i2s_rx_buffer_set(NRF_I2S_Type * p_i2s, + uint32_t * p_buffer) +{ + p_i2s->RXD.PTR = (uint32_t)p_buffer; +} + +__STATIC_INLINE uint32_t * nrf_i2s_rx_buffer_get(NRF_I2S_Type const * p_i2s) +{ + return (uint32_t *)(p_i2s->RXD.PTR); +} + +__STATIC_INLINE void nrf_i2s_tx_buffer_set(NRF_I2S_Type * p_i2s, + uint32_t const * p_buffer) +{ + p_i2s->TXD.PTR = (uint32_t)p_buffer; +} + +__STATIC_INLINE uint32_t * nrf_i2s_tx_buffer_get(NRF_I2S_Type const * p_i2s) +{ + return (uint32_t *)(p_i2s->TXD.PTR); +} + +#endif // SUPPRESS_INLINE_IMPLEMENTATION + + +#ifdef __cplusplus +} +#endif + +#endif // NRF_I2S_H__ + +/** @} */ |