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- #ifndef NRF_I2S_H__
- #define NRF_I2S_H__
- #include <nrfx.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define NRF_I2S_PIN_NOT_CONNECTED 0xFFFFFFFF
- typedef enum
- {
- NRF_I2S_TASK_START = offsetof(NRF_I2S_Type, TASKS_START),
- NRF_I2S_TASK_STOP = offsetof(NRF_I2S_Type, TASKS_STOP)
- } nrf_i2s_task_t;
- typedef enum
- {
- NRF_I2S_EVENT_RXPTRUPD = offsetof(NRF_I2S_Type, EVENTS_RXPTRUPD),
- NRF_I2S_EVENT_TXPTRUPD = offsetof(NRF_I2S_Type, EVENTS_TXPTRUPD),
- NRF_I2S_EVENT_STOPPED = offsetof(NRF_I2S_Type, EVENTS_STOPPED)
- } nrf_i2s_event_t;
- typedef enum
- {
- NRF_I2S_INT_RXPTRUPD_MASK = I2S_INTENSET_RXPTRUPD_Msk,
- NRF_I2S_INT_TXPTRUPD_MASK = I2S_INTENSET_TXPTRUPD_Msk,
- NRF_I2S_INT_STOPPED_MASK = I2S_INTENSET_STOPPED_Msk
- } nrf_i2s_int_mask_t;
- typedef enum
- {
- NRF_I2S_MODE_MASTER = I2S_CONFIG_MODE_MODE_Master,
- NRF_I2S_MODE_SLAVE = I2S_CONFIG_MODE_MODE_Slave
- } nrf_i2s_mode_t;
- typedef enum
- {
- NRF_I2S_MCK_DISABLED = 0,
- #if defined(I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV2) || defined(__NRFX_DOXYGEN__)
-
-
- NRF_I2S_MCK_32MDIV2 = (int)I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV2,
- #endif
- #if defined(I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV3) || defined(__NRFX_DOXYGEN__)
- NRF_I2S_MCK_32MDIV3 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV3,
- #endif
- #if defined(I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV4) || defined(__NRFX_DOXYGEN__)
- NRF_I2S_MCK_32MDIV4 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV4,
- #endif
- #if defined(I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV5) || defined(__NRFX_DOXYGEN__)
- NRF_I2S_MCK_32MDIV5 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV5,
- #endif
- #if defined(I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV6) || defined(__NRFX_DOXYGEN__)
- NRF_I2S_MCK_32MDIV6 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV6,
- #endif
- NRF_I2S_MCK_32MDIV8 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV8,
- NRF_I2S_MCK_32MDIV10 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV10,
- NRF_I2S_MCK_32MDIV11 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV11,
- NRF_I2S_MCK_32MDIV15 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV15,
- NRF_I2S_MCK_32MDIV16 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV16,
- NRF_I2S_MCK_32MDIV21 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV21,
- NRF_I2S_MCK_32MDIV23 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV23,
- NRF_I2S_MCK_32MDIV30 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV30,
- NRF_I2S_MCK_32MDIV31 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV31,
- NRF_I2S_MCK_32MDIV32 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV32,
- NRF_I2S_MCK_32MDIV42 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV42,
- NRF_I2S_MCK_32MDIV63 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV63,
- NRF_I2S_MCK_32MDIV125 = I2S_CONFIG_MCKFREQ_MCKFREQ_32MDIV125
- } nrf_i2s_mck_t;
- typedef enum
- {
- NRF_I2S_RATIO_32X = I2S_CONFIG_RATIO_RATIO_32X,
- NRF_I2S_RATIO_48X = I2S_CONFIG_RATIO_RATIO_48X,
- NRF_I2S_RATIO_64X = I2S_CONFIG_RATIO_RATIO_64X,
- NRF_I2S_RATIO_96X = I2S_CONFIG_RATIO_RATIO_96X,
- NRF_I2S_RATIO_128X = I2S_CONFIG_RATIO_RATIO_128X,
- NRF_I2S_RATIO_192X = I2S_CONFIG_RATIO_RATIO_192X,
- NRF_I2S_RATIO_256X = I2S_CONFIG_RATIO_RATIO_256X,
- NRF_I2S_RATIO_384X = I2S_CONFIG_RATIO_RATIO_384X,
- NRF_I2S_RATIO_512X = I2S_CONFIG_RATIO_RATIO_512X
- } nrf_i2s_ratio_t;
- typedef enum
- {
- NRF_I2S_SWIDTH_8BIT = I2S_CONFIG_SWIDTH_SWIDTH_8Bit,
- NRF_I2S_SWIDTH_16BIT = I2S_CONFIG_SWIDTH_SWIDTH_16Bit,
- NRF_I2S_SWIDTH_24BIT = I2S_CONFIG_SWIDTH_SWIDTH_24Bit
- } nrf_i2s_swidth_t;
- typedef enum
- {
- NRF_I2S_ALIGN_LEFT = I2S_CONFIG_ALIGN_ALIGN_Left,
- NRF_I2S_ALIGN_RIGHT = I2S_CONFIG_ALIGN_ALIGN_Right
- } nrf_i2s_align_t;
- typedef enum
- {
- NRF_I2S_FORMAT_I2S = I2S_CONFIG_FORMAT_FORMAT_I2S,
- NRF_I2S_FORMAT_ALIGNED = I2S_CONFIG_FORMAT_FORMAT_Aligned
- } nrf_i2s_format_t;
- typedef enum
- {
- NRF_I2S_CHANNELS_STEREO = I2S_CONFIG_CHANNELS_CHANNELS_Stereo,
- NRF_I2S_CHANNELS_LEFT = I2S_CONFIG_CHANNELS_CHANNELS_Left,
- NRF_I2S_CHANNELS_RIGHT = I2S_CONFIG_CHANNELS_CHANNELS_Right
- } nrf_i2s_channels_t;
- __STATIC_INLINE void nrf_i2s_task_trigger(NRF_I2S_Type * p_reg,
- nrf_i2s_task_t task);
- __STATIC_INLINE uint32_t nrf_i2s_task_address_get(NRF_I2S_Type const * p_reg,
- nrf_i2s_task_t task);
- __STATIC_INLINE void nrf_i2s_event_clear(NRF_I2S_Type * p_reg,
- nrf_i2s_event_t event);
- __STATIC_INLINE bool nrf_i2s_event_check(NRF_I2S_Type const * p_reg,
- nrf_i2s_event_t event);
- __STATIC_INLINE uint32_t nrf_i2s_event_address_get(NRF_I2S_Type const * p_reg,
- nrf_i2s_event_t event);
- __STATIC_INLINE void nrf_i2s_int_enable(NRF_I2S_Type * p_reg, uint32_t mask);
- __STATIC_INLINE void nrf_i2s_int_disable(NRF_I2S_Type * p_reg, uint32_t mask);
- __STATIC_INLINE bool nrf_i2s_int_enable_check(NRF_I2S_Type const * p_reg,
- nrf_i2s_int_mask_t i2s_int);
- __STATIC_INLINE void nrf_i2s_enable(NRF_I2S_Type * p_reg);
- __STATIC_INLINE void nrf_i2s_disable(NRF_I2S_Type * p_reg);
- #if defined(DPPI_PRESENT) || defined(__NRFX_DOXYGEN__)
- __STATIC_INLINE void nrf_i2s_subscribe_set(NRF_I2S_Type * p_reg,
- nrf_i2s_task_t task,
- uint8_t channel);
- __STATIC_INLINE void nrf_i2s_subscribe_clear(NRF_I2S_Type * p_reg,
- nrf_i2s_task_t task);
- __STATIC_INLINE void nrf_i2s_publish_set(NRF_I2S_Type * p_reg,
- nrf_i2s_event_t event,
- uint8_t channel);
- __STATIC_INLINE void nrf_i2s_publish_clear(NRF_I2S_Type * p_reg,
- nrf_i2s_event_t event);
- #endif
- __STATIC_INLINE void nrf_i2s_pins_set(NRF_I2S_Type * p_reg,
- uint32_t sck_pin,
- uint32_t lrck_pin,
- uint32_t mck_pin,
- uint32_t sdout_pin,
- uint32_t sdin_pin);
- __STATIC_INLINE bool nrf_i2s_configure(NRF_I2S_Type * p_reg,
- 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);
- __STATIC_INLINE void nrf_i2s_transfer_set(NRF_I2S_Type * p_reg,
- uint16_t size,
- uint32_t * p_rx_buffer,
- uint32_t const * p_tx_buffer);
- __STATIC_INLINE void nrf_i2s_rx_buffer_set(NRF_I2S_Type * p_reg,
- uint32_t * p_buffer);
- __STATIC_INLINE uint32_t * nrf_i2s_rx_buffer_get(NRF_I2S_Type const * p_reg);
- __STATIC_INLINE void nrf_i2s_tx_buffer_set(NRF_I2S_Type * p_reg,
- uint32_t const * p_buffer);
- __STATIC_INLINE uint32_t * nrf_i2s_tx_buffer_get(NRF_I2S_Type const * p_reg);
- #ifndef SUPPRESS_INLINE_IMPLEMENTATION
- __STATIC_INLINE void nrf_i2s_task_trigger(NRF_I2S_Type * p_reg,
- nrf_i2s_task_t task)
- {
- *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)task)) = 0x1UL;
- }
- __STATIC_INLINE uint32_t nrf_i2s_task_address_get(NRF_I2S_Type const * p_reg,
- nrf_i2s_task_t task)
- {
- return ((uint32_t)p_reg + (uint32_t)task);
- }
- __STATIC_INLINE void nrf_i2s_event_clear(NRF_I2S_Type * p_reg,
- nrf_i2s_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_i2s_event_check(NRF_I2S_Type const * p_reg,
- nrf_i2s_event_t event)
- {
- return (bool)*(volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event);
- }
- __STATIC_INLINE uint32_t nrf_i2s_event_address_get(NRF_I2S_Type const * p_reg,
- nrf_i2s_event_t event)
- {
- return ((uint32_t)p_reg + (uint32_t)event);
- }
- __STATIC_INLINE void nrf_i2s_int_enable(NRF_I2S_Type * p_reg, uint32_t mask)
- {
- p_reg->INTENSET = mask;
- }
- __STATIC_INLINE void nrf_i2s_int_disable(NRF_I2S_Type * p_reg, uint32_t mask)
- {
- p_reg->INTENCLR = mask;
- }
- __STATIC_INLINE bool nrf_i2s_int_enable_check(NRF_I2S_Type const * p_reg,
- nrf_i2s_int_mask_t i2s_int)
- {
- return (bool)(p_reg->INTENSET & i2s_int);
- }
- __STATIC_INLINE void nrf_i2s_enable(NRF_I2S_Type * p_reg)
- {
- p_reg->ENABLE = (I2S_ENABLE_ENABLE_Enabled << I2S_ENABLE_ENABLE_Pos);
- }
- __STATIC_INLINE void nrf_i2s_disable(NRF_I2S_Type * p_reg)
- {
- p_reg->ENABLE = (I2S_ENABLE_ENABLE_Disabled << I2S_ENABLE_ENABLE_Pos);
- }
- #if defined(DPPI_PRESENT)
- __STATIC_INLINE void nrf_i2s_subscribe_set(NRF_I2S_Type * p_reg,
- nrf_i2s_task_t task,
- uint8_t channel)
- {
- *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) task + 0x80uL)) =
- ((uint32_t)channel | I2S_SUBSCRIBE_START_EN_Msk);
- }
- __STATIC_INLINE void nrf_i2s_subscribe_clear(NRF_I2S_Type * p_reg,
- nrf_i2s_task_t task)
- {
- *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) task + 0x80uL)) = 0;
- }
- __STATIC_INLINE void nrf_i2s_publish_set(NRF_I2S_Type * p_reg,
- nrf_i2s_event_t event,
- uint8_t channel)
- {
- *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) event + 0x80uL)) =
- ((uint32_t)channel | I2S_PUBLISH_STOPPED_EN_Msk);
- }
- __STATIC_INLINE void nrf_i2s_publish_clear(NRF_I2S_Type * p_reg,
- nrf_i2s_event_t event)
- {
- *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) event + 0x80uL)) = 0;
- }
- #endif
- __STATIC_INLINE void nrf_i2s_pins_set(NRF_I2S_Type * p_reg,
- uint32_t sck_pin,
- uint32_t lrck_pin,
- uint32_t mck_pin,
- uint32_t sdout_pin,
- uint32_t sdin_pin)
- {
- p_reg->PSEL.SCK = sck_pin;
- p_reg->PSEL.LRCK = lrck_pin;
- p_reg->PSEL.MCK = mck_pin;
- p_reg->PSEL.SDOUT = sdout_pin;
- p_reg->PSEL.SDIN = sdin_pin;
- }
- __STATIC_INLINE bool nrf_i2s_configure(NRF_I2S_Type * p_reg,
- 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)
- {
-
- 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_reg->CONFIG.MODE = mode;
- p_reg->CONFIG.FORMAT = format;
- p_reg->CONFIG.ALIGN = alignment;
- p_reg->CONFIG.SWIDTH = sample_width;
- p_reg->CONFIG.CHANNELS = channels;
- p_reg->CONFIG.RATIO = ratio;
- if (mck_setup == NRF_I2S_MCK_DISABLED)
- {
- p_reg->CONFIG.MCKEN =
- (I2S_CONFIG_MCKEN_MCKEN_Disabled << I2S_CONFIG_MCKEN_MCKEN_Pos);
- }
- else
- {
- p_reg->CONFIG.MCKFREQ = mck_setup;
- p_reg->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_reg,
- uint16_t size,
- uint32_t * p_buffer_rx,
- uint32_t const * p_buffer_tx)
- {
- p_reg->RXTXD.MAXCNT = size;
- nrf_i2s_rx_buffer_set(p_reg, p_buffer_rx);
- p_reg->CONFIG.RXEN = (p_buffer_rx != NULL) ? 1 : 0;
- nrf_i2s_tx_buffer_set(p_reg, p_buffer_tx);
- p_reg->CONFIG.TXEN = (p_buffer_tx != NULL) ? 1 : 0;
- }
- __STATIC_INLINE void nrf_i2s_rx_buffer_set(NRF_I2S_Type * p_reg,
- uint32_t * p_buffer)
- {
- p_reg->RXD.PTR = (uint32_t)p_buffer;
- }
- __STATIC_INLINE uint32_t * nrf_i2s_rx_buffer_get(NRF_I2S_Type const * p_reg)
- {
- return (uint32_t *)(p_reg->RXD.PTR);
- }
- __STATIC_INLINE void nrf_i2s_tx_buffer_set(NRF_I2S_Type * p_reg,
- uint32_t const * p_buffer)
- {
- p_reg->TXD.PTR = (uint32_t)p_buffer;
- }
- __STATIC_INLINE uint32_t * nrf_i2s_tx_buffer_get(NRF_I2S_Type const * p_reg)
- {
- return (uint32_t *)(p_reg->TXD.PTR);
- }
- #endif
- #ifdef __cplusplus
- }
- #endif
- #endif
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