/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved. * * The information contained herein is property of Nordic Semiconductor ASA. * Terms and conditions of usage are described in detail in NORDIC * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. * * Licensees are granted free, non-transferable use of the information. NO * WARRANTY of ANY KIND is provided. This heading must NOT be removed from * the file. * */ #ifndef NRF_PPI_H__ #define NRF_PPI_H__ #include #include "nrf.h" /** * @defgroup nrf_ppi_hal PPI HAL * @{ * @ingroup nrf_ppi * @brief Hardware access layer for setting up Programmable Peripheral Interconnect (PPI) channels. */ #define NRF_PPI_TASK_SET (1UL) /** * @enum nrf_ppi_channel_t * @brief PPI channels. */ typedef enum { NRF_PPI_CHANNEL0 = PPI_CHEN_CH0_Pos, /**< Channel 0. */ NRF_PPI_CHANNEL1 = PPI_CHEN_CH1_Pos, /**< Channel 1. */ NRF_PPI_CHANNEL2 = PPI_CHEN_CH2_Pos, /**< Channel 2. */ NRF_PPI_CHANNEL3 = PPI_CHEN_CH3_Pos, /**< Channel 3. */ NRF_PPI_CHANNEL4 = PPI_CHEN_CH4_Pos, /**< Channel 4. */ NRF_PPI_CHANNEL5 = PPI_CHEN_CH5_Pos, /**< Channel 5. */ NRF_PPI_CHANNEL6 = PPI_CHEN_CH6_Pos, /**< Channel 6. */ NRF_PPI_CHANNEL7 = PPI_CHEN_CH7_Pos, /**< Channel 7. */ NRF_PPI_CHANNEL8 = PPI_CHEN_CH8_Pos, /**< Channel 8. */ NRF_PPI_CHANNEL9 = PPI_CHEN_CH9_Pos, /**< Channel 9. */ NRF_PPI_CHANNEL10 = PPI_CHEN_CH10_Pos, /**< Channel 10. */ NRF_PPI_CHANNEL11 = PPI_CHEN_CH11_Pos, /**< Channel 11. */ NRF_PPI_CHANNEL12 = PPI_CHEN_CH12_Pos, /**< Channel 12. */ NRF_PPI_CHANNEL13 = PPI_CHEN_CH13_Pos, /**< Channel 13. */ NRF_PPI_CHANNEL14 = PPI_CHEN_CH14_Pos, /**< Channel 14. */ NRF_PPI_CHANNEL15 = PPI_CHEN_CH15_Pos, /**< Channel 15. */ #ifdef NRF52 NRF_PPI_CHANNEL16 = PPI_CHEN_CH16_Pos, /**< Channel 16. */ NRF_PPI_CHANNEL17 = PPI_CHEN_CH17_Pos, /**< Channel 17. */ NRF_PPI_CHANNEL18 = PPI_CHEN_CH18_Pos, /**< Channel 18. */ NRF_PPI_CHANNEL19 = PPI_CHEN_CH19_Pos, /**< Channel 19. */ #endif NRF_PPI_CHANNEL20 = PPI_CHEN_CH20_Pos, /**< Channel 20. */ NRF_PPI_CHANNEL21 = PPI_CHEN_CH21_Pos, /**< Channel 21. */ NRF_PPI_CHANNEL22 = PPI_CHEN_CH22_Pos, /**< Channel 22. */ NRF_PPI_CHANNEL23 = PPI_CHEN_CH23_Pos, /**< Channel 23. */ NRF_PPI_CHANNEL24 = PPI_CHEN_CH24_Pos, /**< Channel 24. */ NRF_PPI_CHANNEL25 = PPI_CHEN_CH25_Pos, /**< Channel 25. */ NRF_PPI_CHANNEL26 = PPI_CHEN_CH26_Pos, /**< Channel 26. */ NRF_PPI_CHANNEL27 = PPI_CHEN_CH27_Pos, /**< Channel 27. */ NRF_PPI_CHANNEL28 = PPI_CHEN_CH28_Pos, /**< Channel 28. */ NRF_PPI_CHANNEL29 = PPI_CHEN_CH29_Pos, /**< Channel 29. */ NRF_PPI_CHANNEL30 = PPI_CHEN_CH30_Pos, /**< Channel 30. */ NRF_PPI_CHANNEL31 = PPI_CHEN_CH31_Pos /**< Channel 31. */ } nrf_ppi_channel_t; /** * @enum nrf_ppi_channel_group_t * @brief PPI channel groups. */ typedef enum { NRF_PPI_CHANNEL_GROUP0 = 0, /**< Channel group 0. */ NRF_PPI_CHANNEL_GROUP1 = 1, /**< Channel group 1. */ NRF_PPI_CHANNEL_GROUP2 = 2, /**< Channel group 2. */ NRF_PPI_CHANNEL_GROUP3 = 3, /**< Channel group 3. */ #ifdef NRF52 NRF_PPI_CHANNEL_GROUP4 = 4, /**< Channel group 4. */ NRF_PPI_CHANNEL_GROUP5 = 5 /**< Channel group 5. */ #endif } nrf_ppi_channel_group_t; /** * @enum nrf_ppi_channel_include_t * @brief Definition of which PPI channels belong to a group. */ typedef enum { NRF_PPI_CHANNEL_EXCLUDE = PPI_CHG_CH0_Excluded, /**< Channel excluded from a group. */ NRF_PPI_CHANNEL_INCLUDE = PPI_CHG_CH0_Included /**< Channel included in a group. */ } nrf_ppi_channel_include_t; /** * @enum nrf_ppi_channel_enable_t * @brief Definition if a PPI channel is enabled. */ typedef enum { NRF_PPI_CHANNEL_DISABLED = PPI_CHEN_CH0_Disabled, /**< Channel disabled. */ NRF_PPI_CHANNEL_ENABLED = PPI_CHEN_CH0_Enabled /**< Channel enabled. */ } nrf_ppi_channel_enable_t; /** * @enum nrf_ppi_task_t * @brief PPI tasks. */ typedef enum { /*lint -save -e30 -esym(628,__INTADDR__)*/ NRF_PPI_TASK_CHG0_EN = offsetof(NRF_PPI_Type, TASKS_CHG[0].EN), /**< Task for enabling channel group 0 */ NRF_PPI_TASK_CHG0_DIS = offsetof(NRF_PPI_Type, TASKS_CHG[0].DIS), /**< Task for disabling channel group 0 */ NRF_PPI_TASK_CHG1_EN = offsetof(NRF_PPI_Type, TASKS_CHG[1].EN), /**< Task for enabling channel group 1 */ NRF_PPI_TASK_CHG1_DIS = offsetof(NRF_PPI_Type, TASKS_CHG[1].DIS), /**< Task for disabling channel group 1 */ NRF_PPI_TASK_CHG2_EN = offsetof(NRF_PPI_Type, TASKS_CHG[2].EN), /**< Task for enabling channel group 2 */ NRF_PPI_TASK_CHG2_DIS = offsetof(NRF_PPI_Type, TASKS_CHG[2].DIS), /**< Task for disabling channel group 2 */ NRF_PPI_TASK_CHG3_EN = offsetof(NRF_PPI_Type, TASKS_CHG[3].EN), /**< Task for enabling channel group 3 */ NRF_PPI_TASK_CHG3_DIS = offsetof(NRF_PPI_Type, TASKS_CHG[3].DIS), /**< Task for disabling channel group 3 */ #ifdef NRF52 NRF_PPI_TASK_CHG4_EN = offsetof(NRF_PPI_Type, TASKS_CHG[4].EN), /**< Task for enabling channel group 4 */ NRF_PPI_TASK_CHG4_DIS = offsetof(NRF_PPI_Type, TASKS_CHG[4].DIS), /**< Task for disabling channel group 4 */ NRF_PPI_TASK_CHG5_EN = offsetof(NRF_PPI_Type, TASKS_CHG[5].EN), /**< Task for enabling channel group 5 */ NRF_PPI_TASK_CHG5_DIS = offsetof(NRF_PPI_Type, TASKS_CHG[5].DIS) /**< Task for disabling channel group 5 */ #endif /*lint -restore*/ } nrf_ppi_task_t; /** * @brief Function for enabling a given PPI channel. * * @details This function enables only one channel. * * @param[in] channel Channel to enable. * * */ __STATIC_INLINE void nrf_ppi_channel_enable(nrf_ppi_channel_t channel) { NRF_PPI->CHENSET = PPI_CHENSET_CH0_Set << ((uint32_t) channel); } /** * @brief Function for disabling a given PPI channel. * * @details This function disables only one channel. * * @param[in] channel Channel to disable. */ __STATIC_INLINE void nrf_ppi_channel_disable(nrf_ppi_channel_t channel) { NRF_PPI->CHENCLR = PPI_CHENCLR_CH0_Clear << ((uint32_t) channel); } /** * @brief Function for checking if a given PPI channel is enabled. * * @details This function checks only one channel. * * @param[in] channel Channel to check. * * @retval NRF_PPI_CHANNEL_ENABLED If the channel is enabled. * @retval NRF_PPI_CHANNEL_DISABLED If the channel is not enabled. * */ __STATIC_INLINE nrf_ppi_channel_enable_t nrf_ppi_channel_enable_get(nrf_ppi_channel_t channel) { if (NRF_PPI->CHEN & (PPI_CHEN_CH0_Msk << ((uint32_t) channel))) { return NRF_PPI_CHANNEL_ENABLED; } else { return NRF_PPI_CHANNEL_DISABLED; } } /** * @brief Function for disabling all PPI channels. */ __STATIC_INLINE void nrf_ppi_channel_disable_all(void) { NRF_PPI->CHENCLR = ((uint32_t)0xFFFFFFFFuL); } /** * @brief Function for disabling multiple PPI channels. * * @param[in] mask Channel mask. */ __STATIC_INLINE void nrf_ppi_channels_disable(uint32_t mask) { NRF_PPI->CHENCLR = mask; } /** * @brief Function for setting up event and task endpoints for a given PPI channel. * * @param[in] eep Event register address. * * @param[in] tep Task register address. * * @param[in] channel Channel to which the given endpoints are assigned. */ __STATIC_INLINE void nrf_ppi_channel_endpoint_setup(nrf_ppi_channel_t channel, uint32_t eep, uint32_t tep) { NRF_PPI->CH[(uint32_t) channel].EEP = eep; NRF_PPI->CH[(uint32_t) channel].TEP = tep; } #ifdef NRF52 /** * @brief Function for setting up task endpoint for a given PPI fork. * * @param[in] fork_tep Task register address. * * @param[in] channel Channel to which the given fork endpoint is assigned. */ __STATIC_INLINE void nrf_ppi_fork_endpoint_setup(nrf_ppi_channel_t channel, uint32_t fork_tep) { NRF_PPI->FORK[(uint32_t) channel].TEP = fork_tep; } /** * @brief Function for setting up event and task endpoints for a given PPI channel and fork. * * @param[in] eep Event register address. * * @param[in] tep Task register address. * * @param[in] fork_tep Fork task register address (register value). * * @param[in] channel Channel to which the given endpoints are assigned. */ __STATIC_INLINE void nrf_ppi_channel_and_fork_endpoint_setup(nrf_ppi_channel_t channel, uint32_t eep, uint32_t tep, uint32_t fork_tep) { nrf_ppi_channel_endpoint_setup(channel, eep, tep); nrf_ppi_fork_endpoint_setup(channel, fork_tep); } #endif /** * @brief Function for including a PPI channel in a channel group. * * @details This function adds only one channel to the group. * * @param[in] channel Channel to be included in the group. * * @param[in] channel_group Channel group. * */ __STATIC_INLINE void nrf_ppi_channel_include_in_group(nrf_ppi_channel_t channel, nrf_ppi_channel_group_t channel_group) { NRF_PPI->CHG[(uint32_t) channel_group] = NRF_PPI->CHG[(uint32_t) channel_group] | (PPI_CHG_CH0_Included << ((uint32_t) channel)); } /** * @brief Function for including multiple PPI channels in a channel group. * * @details This function adds all specified channels to the group. * * @param[in] channel_mask Channels to be included in the group. * * @param[in] channel_group Channel group. * */ __STATIC_INLINE void nrf_ppi_channels_include_in_group(uint32_t channel_mask, nrf_ppi_channel_group_t channel_group) { NRF_PPI->CHG[(uint32_t) channel_group] = NRF_PPI->CHG[(uint32_t) channel_group] | (channel_mask); } /** * @brief Function for removing a PPI channel from a channel group. * * @details This function removes only one channel from the group. * * @param[in] channel Channel to be removed from the group. * * @param[in] channel_group Channel group. */ __STATIC_INLINE void nrf_ppi_channel_remove_from_group(nrf_ppi_channel_t channel, nrf_ppi_channel_group_t channel_group) { NRF_PPI->CHG[(uint32_t) channel_group] = NRF_PPI->CHG[(uint32_t) channel_group] & ~(PPI_CHG_CH0_Included << ((uint32_t) channel)); } /** * @brief Function for removing multiple PPI channels from a channel group. * * @details This function removes all specified channels from the group. * * @param[in] channel_mask Channels to be removed from the group. * * @param[in] channel_group Channel group. */ __STATIC_INLINE void nrf_ppi_channels_remove_from_group(uint32_t channel_mask, nrf_ppi_channel_group_t channel_group) { NRF_PPI->CHG[(uint32_t) channel_group] = NRF_PPI->CHG[(uint32_t) channel_group] & ~(channel_mask); } /** * @brief Function for removing all PPI channels from a channel group. * * @param[in] group Channel group. * */ __STATIC_INLINE void nrf_ppi_channel_group_clear(nrf_ppi_channel_group_t group) { NRF_PPI->CHG[(uint32_t) group] = 0; } /** * @brief Function for enabling a channel group. * * @param[in] group Channel group. * */ __STATIC_INLINE void nrf_ppi_group_enable(nrf_ppi_channel_group_t group) { NRF_PPI->TASKS_CHG[(uint32_t) group].EN = NRF_PPI_TASK_SET; } /** * @brief Function for disabling a channel group. * * @param[in] group Channel group. * */ __STATIC_INLINE void nrf_ppi_group_disable(nrf_ppi_channel_group_t group) { NRF_PPI->TASKS_CHG[(uint32_t) group].DIS = NRF_PPI_TASK_SET; } /** * @brief Function for setting a PPI task. * * @param[in] ppi_task PPI task to set. */ __STATIC_INLINE void nrf_ppi_task_trigger(nrf_ppi_task_t ppi_task) { *((volatile uint32_t *) ((uint8_t *) NRF_PPI_BASE + (uint32_t) ppi_task)) = NRF_PPI_TASK_SET; } /** * @brief Function for returning the address of a specific PPI task register. * * @param[in] ppi_task PPI task. */ __STATIC_INLINE uint32_t * nrf_ppi_task_address_get(nrf_ppi_task_t ppi_task) { return (uint32_t *) ((uint8_t *) NRF_PPI_BASE + (uint32_t) ppi_task); } /** * @brief Function for returning the PPI enable task address of a specific group. * * @param[in] group PPI group. */ __STATIC_INLINE uint32_t * nrf_ppi_task_group_enable_address_get(nrf_ppi_channel_group_t group) { return (uint32_t *) &NRF_PPI->TASKS_CHG[(uint32_t) group].EN; } /** * @brief Function for returning the PPI disable task address of a specific group. * * @param[in] group PPI group. */ __STATIC_INLINE uint32_t * nrf_ppi_task_group_disable_address_get(nrf_ppi_channel_group_t group) { return (uint32_t *) &NRF_PPI->TASKS_CHG[(uint32_t) group].DIS; } /** *@} **/ /*lint --flb "Leave library region" */ #endif // NRF_PPI_H__