nrf52_esb - NRF52_esb

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NRF52_esb

nrf_esb.c@1:66f95e364222, 2021-02-04 (annotated)

Committer:: wkleunen
Date:: Thu Feb 04 10:36:44 2021 +0000
Revision:: 1:66f95e364222

Initial compile;

Who changed what in which revision?

User	Revision	Line number	New contents of line
wkleunen	1:66f95e364222	1	/**
wkleunen	1:66f95e364222	2	* Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
wkleunen	1:66f95e364222	3	*
wkleunen	1:66f95e364222	4	* All rights reserved.
wkleunen	1:66f95e364222	5	*
wkleunen	1:66f95e364222	6	* Redistribution and use in source and binary forms, with or without modification,
wkleunen	1:66f95e364222	7	* are permitted provided that the following conditions are met:
wkleunen	1:66f95e364222	8	*
wkleunen	1:66f95e364222	9	* 1. Redistributions of source code must retain the above copyright notice, this
wkleunen	1:66f95e364222	10	* list of conditions and the following disclaimer.
wkleunen	1:66f95e364222	11	*
wkleunen	1:66f95e364222	12	* 2. Redistributions in binary form, except as embedded into a Nordic
wkleunen	1:66f95e364222	13	* Semiconductor ASA integrated circuit in a product or a software update for
wkleunen	1:66f95e364222	14	* such product, must reproduce the above copyright notice, this list of
wkleunen	1:66f95e364222	15	* conditions and the following disclaimer in the documentation and/or other
wkleunen	1:66f95e364222	16	* materials provided with the distribution.
wkleunen	1:66f95e364222	17	*
wkleunen	1:66f95e364222	18	* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
wkleunen	1:66f95e364222	19	* contributors may be used to endorse or promote products derived from this
wkleunen	1:66f95e364222	20	* software without specific prior written permission.
wkleunen	1:66f95e364222	21	*
wkleunen	1:66f95e364222	22	* 4. This software, with or without modification, must only be used with a
wkleunen	1:66f95e364222	23	* Nordic Semiconductor ASA integrated circuit.
wkleunen	1:66f95e364222	24	*
wkleunen	1:66f95e364222	25	* 5. Any software provided in binary form under this license must not be reverse
wkleunen	1:66f95e364222	26	* engineered, decompiled, modified and/or disassembled.
wkleunen	1:66f95e364222	27	*
wkleunen	1:66f95e364222	28	* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
wkleunen	1:66f95e364222	29	* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
wkleunen	1:66f95e364222	30	* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
wkleunen	1:66f95e364222	31	* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
wkleunen	1:66f95e364222	32	* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
wkleunen	1:66f95e364222	33	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
wkleunen	1:66f95e364222	34	* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
wkleunen	1:66f95e364222	35	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
wkleunen	1:66f95e364222	36	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
wkleunen	1:66f95e364222	37	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
wkleunen	1:66f95e364222	38	*
wkleunen	1:66f95e364222	39	*/
wkleunen	1:66f95e364222	40
wkleunen	1:66f95e364222	41	#include "nrf_error.h"
wkleunen	1:66f95e364222	42	#include "nrf_esb.h"
wkleunen	1:66f95e364222	43	#include "nrf_esb_error_codes.h"
wkleunen	1:66f95e364222	44	#include "nrf_gpio.h"
wkleunen	1:66f95e364222	45	#include <string.h>
wkleunen	1:66f95e364222	46	#include <stddef.h>
wkleunen	1:66f95e364222	47	#include "sdk_common.h"
wkleunen	1:66f95e364222	48	#include "sdk_macros.h"
wkleunen	1:66f95e364222	49	#include "app_util.h"
wkleunen	1:66f95e364222	50	#include "nrf_log.h"
wkleunen	1:66f95e364222	51	#include "nrf_delay.h"
wkleunen	1:66f95e364222	52
wkleunen	1:66f95e364222	53	#define BIT_MASK_UINT_8(x) (0xFF >> (8 - (x)))
wkleunen	1:66f95e364222	54	#define NRF_ESB_PIPE_COUNT 8
wkleunen	1:66f95e364222	55
wkleunen	1:66f95e364222	56	// Constant parameters
wkleunen	1:66f95e364222	57	#define RX_WAIT_FOR_ACK_TIMEOUT_US_2MBPS (48) /*< 2 Mb RX wait for acknowledgment time-out value. Smallest reliable value - 43. /
wkleunen	1:66f95e364222	58	#define RX_WAIT_FOR_ACK_TIMEOUT_US_1MBPS (64) /*< 1 Mb RX wait for acknowledgment time-out value. Smallest reliable value - 59. /
wkleunen	1:66f95e364222	59	#define RX_WAIT_FOR_ACK_TIMEOUT_US_250KBPS (250) /*< 250 Kb RX wait for acknowledgment time-out value. /
wkleunen	1:66f95e364222	60	#define RX_WAIT_FOR_ACK_TIMEOUT_US_1MBPS_BLE (73) /*< 1 Mb RX wait for acknowledgment time-out (combined with BLE). Smallest reliable value - 68./
wkleunen	1:66f95e364222	61
wkleunen	1:66f95e364222	62	// Interrupt flags
wkleunen	1:66f95e364222	63	#define NRF_ESB_INT_TX_SUCCESS_MSK 0x01 /*< Interrupt mask value for TX success. /
wkleunen	1:66f95e364222	64	#define NRF_ESB_INT_TX_FAILED_MSK 0x02 /*< Interrupt mask value for TX failure. /
wkleunen	1:66f95e364222	65	#define NRF_ESB_INT_RX_DATA_RECEIVED_MSK 0x04 /*< Interrupt mask value for RX_DR. /
wkleunen	1:66f95e364222	66
wkleunen	1:66f95e364222	67	#define NRF_ESB_PID_RESET_VALUE 0xFF /*< Invalid PID value which is guaranteed to not collide with any valid PID value. /
wkleunen	1:66f95e364222	68	#define NRF_ESB_PID_MAX 3 /*< Maximum value for PID. /
wkleunen	1:66f95e364222	69	#define NRF_ESB_CRC_RESET_VALUE 0xFFFF /*< CRC reset value. /
wkleunen	1:66f95e364222	70
wkleunen	1:66f95e364222	71	// Internal Enhanced ShockBurst module state.
wkleunen	1:66f95e364222	72	typedef enum {
wkleunen	1:66f95e364222	73	NRF_ESB_STATE_IDLE, /*< Module idle. /
wkleunen	1:66f95e364222	74	NRF_ESB_STATE_PTX_TX, /*< Module transmitting without acknowledgment. /
wkleunen	1:66f95e364222	75	NRF_ESB_STATE_PTX_TX_ACK, /*< Module transmitting with acknowledgment. /
wkleunen	1:66f95e364222	76	NRF_ESB_STATE_PTX_RX_ACK, /*< Module transmitting with acknowledgment and reception of payload with the acknowledgment response. /
wkleunen	1:66f95e364222	77	NRF_ESB_STATE_PRX, /*< Module receiving packets without acknowledgment. /
wkleunen	1:66f95e364222	78	NRF_ESB_STATE_PRX_SEND_ACK, /*< Module transmitting acknowledgment in RX mode. /
wkleunen	1:66f95e364222	79	} nrf_esb_mainstate_t;
wkleunen	1:66f95e364222	80
wkleunen	1:66f95e364222	81
wkleunen	1:66f95e364222	82	#define DISABLE_RF_IRQ() NVIC_DisableIRQ(RADIO_IRQn)
wkleunen	1:66f95e364222	83	#define ENABLE_RF_IRQ() NVIC_EnableIRQ(RADIO_IRQn)
wkleunen	1:66f95e364222	84
wkleunen	1:66f95e364222	85	#define _RADIO_SHORTS_COMMON ( RADIO_SHORTS_READY_START_Msk \| RADIO_SHORTS_END_DISABLE_Msk \| \
wkleunen	1:66f95e364222	86	RADIO_SHORTS_ADDRESS_RSSISTART_Msk \| RADIO_SHORTS_DISABLED_RSSISTOP_Msk )
wkleunen	1:66f95e364222	87
wkleunen	1:66f95e364222	88	#define VERIFY_PAYLOAD_LENGTH(p) \
wkleunen	1:66f95e364222	89	do \
wkleunen	1:66f95e364222	90	{ \
wkleunen	1:66f95e364222	91	if (p->length == 0 \|\| \
wkleunen	1:66f95e364222	92	p->length > NRF_ESB_MAX_PAYLOAD_LENGTH \|\| \
wkleunen	1:66f95e364222	93	(m_config_local.protocol == NRF_ESB_PROTOCOL_ESB && \
wkleunen	1:66f95e364222	94	p->length > m_config_local.payload_length)) \
wkleunen	1:66f95e364222	95	{ \
wkleunen	1:66f95e364222	96	return NRF_ERROR_INVALID_LENGTH; \
wkleunen	1:66f95e364222	97	} \
wkleunen	1:66f95e364222	98	}while (0)
wkleunen	1:66f95e364222	99
wkleunen	1:66f95e364222	100
wkleunen	1:66f95e364222	101	/* @brief Structure holding pipe info PID and CRC and acknowledgment payload. */
wkleunen	1:66f95e364222	102	typedef struct
wkleunen	1:66f95e364222	103	{
wkleunen	1:66f95e364222	104	uint16_t crc; /*< CRC value of the last received packet (Used to detect retransmits). /
wkleunen	1:66f95e364222	105	uint8_t pid; /*< Packet ID of the last received packet (Used to detect retransmits). /
wkleunen	1:66f95e364222	106	bool ack_payload; /*< Flag indicating the state of the transmission of acknowledgment payloads. /
wkleunen	1:66f95e364222	107	} pipe_info_t;
wkleunen	1:66f95e364222	108
wkleunen	1:66f95e364222	109
wkleunen	1:66f95e364222	110	/* @brief First-in, first-out queue of payloads to be transmitted. */
wkleunen	1:66f95e364222	111	typedef struct
wkleunen	1:66f95e364222	112	{
wkleunen	1:66f95e364222	113	nrf_esb_payload_t * p_payload[NRF_ESB_TX_FIFO_SIZE]; /*< Pointer to the actual queue. /
wkleunen	1:66f95e364222	114	uint32_t entry_point; /*< Current start of queue. /
wkleunen	1:66f95e364222	115	uint32_t exit_point; /*< Current end of queue. /
wkleunen	1:66f95e364222	116	uint32_t count; /*< Current number of elements in the queue. /
wkleunen	1:66f95e364222	117	} nrf_esb_payload_tx_fifo_t;
wkleunen	1:66f95e364222	118
wkleunen	1:66f95e364222	119
wkleunen	1:66f95e364222	120	/* @brief First-in, first-out queue of received payloads. */
wkleunen	1:66f95e364222	121	typedef struct
wkleunen	1:66f95e364222	122	{
wkleunen	1:66f95e364222	123	nrf_esb_payload_t * p_payload[NRF_ESB_RX_FIFO_SIZE]; /*< Pointer to the actual queue. /
wkleunen	1:66f95e364222	124	uint32_t entry_point; /*< Current start of queue. /
wkleunen	1:66f95e364222	125	uint32_t exit_point; /*< Current end of queue. /
wkleunen	1:66f95e364222	126	uint32_t count; /*< Current number of elements in the queue. /
wkleunen	1:66f95e364222	127	} nrf_esb_payload_rx_fifo_t;
wkleunen	1:66f95e364222	128
wkleunen	1:66f95e364222	129
wkleunen	1:66f95e364222	130	/**@brief Enhanced ShockBurst address.
wkleunen	1:66f95e364222	131	*
wkleunen	1:66f95e364222	132	* Enhanced ShockBurst addresses consist of a base address and a prefix
wkleunen	1:66f95e364222	133	* that is unique for each pipe. See @ref esb_addressing in the ESB user
wkleunen	1:66f95e364222	134	* guide for more information.
wkleunen	1:66f95e364222	135	*/
wkleunen	1:66f95e364222	136	typedef struct
wkleunen	1:66f95e364222	137	{
wkleunen	1:66f95e364222	138	uint8_t base_addr_p0[4]; /*< Base address for pipe 0 encoded in big endian. /
wkleunen	1:66f95e364222	139	uint8_t base_addr_p1[4]; /*< Base address for pipe 1-7 encoded in big endian. /
wkleunen	1:66f95e364222	140	uint8_t pipe_prefixes[8]; /*< Address prefix for pipe 0 to 7. /
wkleunen	1:66f95e364222	141	uint8_t num_pipes; /*< Number of pipes available. /
wkleunen	1:66f95e364222	142	uint8_t addr_length; /*< Length of the address including the prefix. /
wkleunen	1:66f95e364222	143	uint8_t rx_pipes_enabled; /*< Bitfield for enabled pipes. /
wkleunen	1:66f95e364222	144	uint8_t rf_channel; /*< Channel to use (must be between 0 and 100). /
wkleunen	1:66f95e364222	145	} nrf_esb_address_t;
wkleunen	1:66f95e364222	146
wkleunen	1:66f95e364222	147
wkleunen	1:66f95e364222	148	// Module state
wkleunen	1:66f95e364222	149	static bool m_esb_initialized = false;
wkleunen	1:66f95e364222	150	static nrf_esb_mainstate_t m_nrf_esb_mainstate = NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	151	static nrf_esb_payload_t * mp_current_payload;
wkleunen	1:66f95e364222	152
wkleunen	1:66f95e364222	153	static nrf_esb_event_handler_t m_event_handler;
wkleunen	1:66f95e364222	154
wkleunen	1:66f95e364222	155	// Address parameters
wkleunen	1:66f95e364222	156	__ALIGN(4) static nrf_esb_address_t m_esb_addr = NRF_ESB_ADDR_DEFAULT;
wkleunen	1:66f95e364222	157
wkleunen	1:66f95e364222	158	// RF parameters
wkleunen	1:66f95e364222	159	static nrf_esb_config_t m_config_local;
wkleunen	1:66f95e364222	160
wkleunen	1:66f95e364222	161	// TX FIFO
wkleunen	1:66f95e364222	162	static nrf_esb_payload_t m_tx_fifo_payload[NRF_ESB_TX_FIFO_SIZE];
wkleunen	1:66f95e364222	163	static nrf_esb_payload_tx_fifo_t m_tx_fifo;
wkleunen	1:66f95e364222	164
wkleunen	1:66f95e364222	165	// RX FIFO
wkleunen	1:66f95e364222	166	static nrf_esb_payload_t m_rx_fifo_payload[NRF_ESB_RX_FIFO_SIZE];
wkleunen	1:66f95e364222	167	static nrf_esb_payload_rx_fifo_t m_rx_fifo;
wkleunen	1:66f95e364222	168
wkleunen	1:66f95e364222	169	// Payload buffers
wkleunen	1:66f95e364222	170	static uint8_t m_tx_payload_buffer[NRF_ESB_MAX_PAYLOAD_LENGTH + 2];
wkleunen	1:66f95e364222	171	static uint8_t m_rx_payload_buffer[NRF_ESB_MAX_PAYLOAD_LENGTH + 2];
wkleunen	1:66f95e364222	172
wkleunen	1:66f95e364222	173	// Run time variables
wkleunen	1:66f95e364222	174	static volatile uint32_t m_interrupt_flags = 0;
wkleunen	1:66f95e364222	175	static uint8_t m_pids[NRF_ESB_PIPE_COUNT];
wkleunen	1:66f95e364222	176	static pipe_info_t m_rx_pipe_info[NRF_ESB_PIPE_COUNT];
wkleunen	1:66f95e364222	177	static volatile uint32_t m_retransmits_remaining;
wkleunen	1:66f95e364222	178	static volatile uint32_t m_last_tx_attempts;
wkleunen	1:66f95e364222	179	static volatile uint32_t m_wait_for_ack_timeout_us;
wkleunen	1:66f95e364222	180
wkleunen	1:66f95e364222	181	// nRF52 address workaround enable
wkleunen	1:66f95e364222	182	#ifdef NRF52
wkleunen	1:66f95e364222	183	static bool m_address_hang_fix_enable = true;
wkleunen	1:66f95e364222	184	#endif
wkleunen	1:66f95e364222	185	static uint32_t m_radio_shorts_common = _RADIO_SHORTS_COMMON;
wkleunen	1:66f95e364222	186
wkleunen	1:66f95e364222	187	// These function pointers are changed dynamically, depending on protocol configuration and state.
wkleunen	1:66f95e364222	188	static void (*on_radio_disabled)(void) = 0;
wkleunen	1:66f95e364222	189	static void (*on_radio_end)(void) = 0;
wkleunen	1:66f95e364222	190	static void (*update_rf_payload_format)(uint32_t payload_length) = 0;
wkleunen	1:66f95e364222	191
wkleunen	1:66f95e364222	192
wkleunen	1:66f95e364222	193	// The following functions are assigned to the function pointers above.
wkleunen	1:66f95e364222	194	static void on_radio_disabled_tx_noack(void);
wkleunen	1:66f95e364222	195	static void on_radio_disabled_tx(void);
wkleunen	1:66f95e364222	196	static void on_radio_disabled_tx_wait_for_ack(void);
wkleunen	1:66f95e364222	197	static void on_radio_disabled_rx(void);
wkleunen	1:66f95e364222	198	static void on_radio_disabled_rx_ack(void);
wkleunen	1:66f95e364222	199
wkleunen	1:66f95e364222	200
wkleunen	1:66f95e364222	201	#define NRF_ESB_ADDR_UPDATE_MASK_BASE0 (1 << 0) /< Mask value to signal updating BASE0 radio address. /
wkleunen	1:66f95e364222	202	#define NRF_ESB_ADDR_UPDATE_MASK_BASE1 (1 << 1) /< Mask value to signal updating BASE1 radio address. /
wkleunen	1:66f95e364222	203	#define NRF_ESB_ADDR_UPDATE_MASK_PREFIX (1 << 2) /< Mask value to signal updating radio prefixes. /
wkleunen	1:66f95e364222	204
wkleunen	1:66f95e364222	205
wkleunen	1:66f95e364222	206	// Function to do bytewise bit-swap on an unsigned 32-bit value
wkleunen	1:66f95e364222	207	static uint32_t bytewise_bit_swap(uint8_t const * p_inp)
wkleunen	1:66f95e364222	208	{
wkleunen	1:66f95e364222	209	uint32_t inp = ((uint32_t)p_inp);
wkleunen	1:66f95e364222	210	#if __CORTEX_M == (0x04U)
wkleunen	1:66f95e364222	211	return __REV((uint32_t)__RBIT(inp)); //lint -esym(628, __rev) -esym(526, __rev) -esym(628, __rbit) -esym(526, __rbit) */
wkleunen	1:66f95e364222	212	#else
wkleunen	1:66f95e364222	213	inp = (inp & 0xF0F0F0F0) >> 4 \| (inp & 0x0F0F0F0F) << 4;
wkleunen	1:66f95e364222	214	inp = (inp & 0xCCCCCCCC) >> 2 \| (inp & 0x33333333) << 2;
wkleunen	1:66f95e364222	215	inp = (inp & 0xAAAAAAAA) >> 1 \| (inp & 0x55555555) << 1;
wkleunen	1:66f95e364222	216	return inp;
wkleunen	1:66f95e364222	217	#endif
wkleunen	1:66f95e364222	218	}
wkleunen	1:66f95e364222	219
wkleunen	1:66f95e364222	220
wkleunen	1:66f95e364222	221	// Internal function to convert base addresses from nRF24L type addressing to nRF51 type addressing
wkleunen	1:66f95e364222	222	static uint32_t addr_conv(uint8_t const* p_addr)
wkleunen	1:66f95e364222	223	{
wkleunen	1:66f95e364222	224	return __REV(bytewise_bit_swap(p_addr)); //lint -esym(628, __rev) -esym(526, __rev) */
wkleunen	1:66f95e364222	225	}
wkleunen	1:66f95e364222	226
wkleunen	1:66f95e364222	227
wkleunen	1:66f95e364222	228	static ret_code_t apply_address_workarounds()
wkleunen	1:66f95e364222	229	{
wkleunen	1:66f95e364222	230	#ifdef NRF52
wkleunen	1:66f95e364222	231	// Set up radio parameters.
wkleunen	1:66f95e364222	232	NRF_RADIO->MODECNF0 = (NRF_RADIO->MODECNF0 & ~RADIO_MODECNF0_RU_Msk) \| RADIO_MODECNF0_RU_Default << RADIO_MODECNF0_RU_Pos;
wkleunen	1:66f95e364222	233
wkleunen	1:66f95e364222	234	// Workaround for nRF52832 Rev 1 Errata 102 and nRF52832 Rev 1 Errata 106. This will reduce sensitivity by 3dB.
wkleunen	1:66f95e364222	235	((volatile uint32_t )0x40001774) = (((volatile uint32_t )0x40001774) & 0xFFFFFFFE) \| 0x01000000;
wkleunen	1:66f95e364222	236	#endif
wkleunen	1:66f95e364222	237	return NRF_SUCCESS;
wkleunen	1:66f95e364222	238	}
wkleunen	1:66f95e364222	239
wkleunen	1:66f95e364222	240
wkleunen	1:66f95e364222	241	static void update_rf_payload_format_esb_dpl(uint32_t payload_length)
wkleunen	1:66f95e364222	242	{
wkleunen	1:66f95e364222	243	#if (NRF_ESB_MAX_PAYLOAD_LENGTH <= 32)
wkleunen	1:66f95e364222	244	// Using 6 bits for length
wkleunen	1:66f95e364222	245	NRF_RADIO->PCNF0 = (0 << RADIO_PCNF0_S0LEN_Pos) \|
wkleunen	1:66f95e364222	246	(6 << RADIO_PCNF0_LFLEN_Pos) \|
wkleunen	1:66f95e364222	247	(3 << RADIO_PCNF0_S1LEN_Pos) ;
wkleunen	1:66f95e364222	248	#else
wkleunen	1:66f95e364222	249	// Using 8 bits for length
wkleunen	1:66f95e364222	250	NRF_RADIO->PCNF0 = (0 << RADIO_PCNF0_S0LEN_Pos) \|
wkleunen	1:66f95e364222	251	(8 << RADIO_PCNF0_LFLEN_Pos) \|
wkleunen	1:66f95e364222	252	(3 << RADIO_PCNF0_S1LEN_Pos) ;
wkleunen	1:66f95e364222	253	#endif
wkleunen	1:66f95e364222	254	NRF_RADIO->PCNF1 = (RADIO_PCNF1_WHITEEN_Disabled << RADIO_PCNF1_WHITEEN_Pos) \|
wkleunen	1:66f95e364222	255	(RADIO_PCNF1_ENDIAN_Big << RADIO_PCNF1_ENDIAN_Pos) \|
wkleunen	1:66f95e364222	256	((m_esb_addr.addr_length - 1) << RADIO_PCNF1_BALEN_Pos) \|
wkleunen	1:66f95e364222	257	(0 << RADIO_PCNF1_STATLEN_Pos) \|
wkleunen	1:66f95e364222	258	(NRF_ESB_MAX_PAYLOAD_LENGTH << RADIO_PCNF1_MAXLEN_Pos);
wkleunen	1:66f95e364222	259	}
wkleunen	1:66f95e364222	260
wkleunen	1:66f95e364222	261
wkleunen	1:66f95e364222	262	static void update_rf_payload_format_esb(uint32_t payload_length)
wkleunen	1:66f95e364222	263	{
wkleunen	1:66f95e364222	264	NRF_RADIO->PCNF0 = (1 << RADIO_PCNF0_S0LEN_Pos) \|
wkleunen	1:66f95e364222	265	(0 << RADIO_PCNF0_LFLEN_Pos) \|
wkleunen	1:66f95e364222	266	(1 << RADIO_PCNF0_S1LEN_Pos);
wkleunen	1:66f95e364222	267
wkleunen	1:66f95e364222	268	NRF_RADIO->PCNF1 = (RADIO_PCNF1_WHITEEN_Disabled << RADIO_PCNF1_WHITEEN_Pos) \|
wkleunen	1:66f95e364222	269	(RADIO_PCNF1_ENDIAN_Big << RADIO_PCNF1_ENDIAN_Pos) \|
wkleunen	1:66f95e364222	270	((m_esb_addr.addr_length - 1) << RADIO_PCNF1_BALEN_Pos) \|
wkleunen	1:66f95e364222	271	(payload_length << RADIO_PCNF1_STATLEN_Pos) \|
wkleunen	1:66f95e364222	272	(payload_length << RADIO_PCNF1_MAXLEN_Pos);
wkleunen	1:66f95e364222	273	}
wkleunen	1:66f95e364222	274
wkleunen	1:66f95e364222	275
wkleunen	1:66f95e364222	276	static void update_radio_addresses(uint8_t update_mask)
wkleunen	1:66f95e364222	277	{
wkleunen	1:66f95e364222	278	if ((update_mask & NRF_ESB_ADDR_UPDATE_MASK_BASE0) != 0)
wkleunen	1:66f95e364222	279	{
wkleunen	1:66f95e364222	280	NRF_RADIO->BASE0 = addr_conv(m_esb_addr.base_addr_p0);
wkleunen	1:66f95e364222	281	}
wkleunen	1:66f95e364222	282
wkleunen	1:66f95e364222	283	if ((update_mask & NRF_ESB_ADDR_UPDATE_MASK_BASE1) != 0)
wkleunen	1:66f95e364222	284	{
wkleunen	1:66f95e364222	285	NRF_RADIO->BASE1 = addr_conv(m_esb_addr.base_addr_p1);
wkleunen	1:66f95e364222	286	}
wkleunen	1:66f95e364222	287
wkleunen	1:66f95e364222	288	if ((update_mask & NRF_ESB_ADDR_UPDATE_MASK_PREFIX) != 0)
wkleunen	1:66f95e364222	289	{
wkleunen	1:66f95e364222	290	NRF_RADIO->PREFIX0 = bytewise_bit_swap(&m_esb_addr.pipe_prefixes[0]);
wkleunen	1:66f95e364222	291	NRF_RADIO->PREFIX1 = bytewise_bit_swap(&m_esb_addr.pipe_prefixes[4]);
wkleunen	1:66f95e364222	292	}
wkleunen	1:66f95e364222	293	}
wkleunen	1:66f95e364222	294
wkleunen	1:66f95e364222	295
wkleunen	1:66f95e364222	296	static void update_radio_tx_power()
wkleunen	1:66f95e364222	297	{
wkleunen	1:66f95e364222	298	NRF_RADIO->TXPOWER = m_config_local.tx_output_power << RADIO_TXPOWER_TXPOWER_Pos;
wkleunen	1:66f95e364222	299	}
wkleunen	1:66f95e364222	300
wkleunen	1:66f95e364222	301
wkleunen	1:66f95e364222	302	static bool update_radio_bitrate()
wkleunen	1:66f95e364222	303	{
wkleunen	1:66f95e364222	304	NRF_RADIO->MODE = m_config_local.bitrate << RADIO_MODE_MODE_Pos;
wkleunen	1:66f95e364222	305
wkleunen	1:66f95e364222	306	switch (m_config_local.bitrate)
wkleunen	1:66f95e364222	307	{
wkleunen	1:66f95e364222	308	case NRF_ESB_BITRATE_2MBPS:
wkleunen	1:66f95e364222	309	#ifdef NRF52
wkleunen	1:66f95e364222	310	case NRF_ESB_BITRATE_2MBPS_BLE:
wkleunen	1:66f95e364222	311	#endif
wkleunen	1:66f95e364222	312	m_wait_for_ack_timeout_us = RX_WAIT_FOR_ACK_TIMEOUT_US_2MBPS;
wkleunen	1:66f95e364222	313	break;
wkleunen	1:66f95e364222	314
wkleunen	1:66f95e364222	315	case NRF_ESB_BITRATE_1MBPS:
wkleunen	1:66f95e364222	316	m_wait_for_ack_timeout_us = RX_WAIT_FOR_ACK_TIMEOUT_US_1MBPS;
wkleunen	1:66f95e364222	317	break;
wkleunen	1:66f95e364222	318
wkleunen	1:66f95e364222	319	#ifdef NRF51
wkleunen	1:66f95e364222	320	case NRF_ESB_BITRATE_250KBPS:
wkleunen	1:66f95e364222	321	m_wait_for_ack_timeout_us = RX_WAIT_FOR_ACK_TIMEOUT_US_250KBPS;
wkleunen	1:66f95e364222	322	break;
wkleunen	1:66f95e364222	323	#endif
wkleunen	1:66f95e364222	324
wkleunen	1:66f95e364222	325	case NRF_ESB_BITRATE_1MBPS_BLE:
wkleunen	1:66f95e364222	326	m_wait_for_ack_timeout_us = RX_WAIT_FOR_ACK_TIMEOUT_US_1MBPS_BLE;
wkleunen	1:66f95e364222	327	break;
wkleunen	1:66f95e364222	328
wkleunen	1:66f95e364222	329	default:
wkleunen	1:66f95e364222	330	// Should not be reached
wkleunen	1:66f95e364222	331	return false;
wkleunen	1:66f95e364222	332	}
wkleunen	1:66f95e364222	333	return true;
wkleunen	1:66f95e364222	334	}
wkleunen	1:66f95e364222	335
wkleunen	1:66f95e364222	336
wkleunen	1:66f95e364222	337	static bool update_radio_protocol()
wkleunen	1:66f95e364222	338	{
wkleunen	1:66f95e364222	339	switch (m_config_local.protocol)
wkleunen	1:66f95e364222	340	{
wkleunen	1:66f95e364222	341	case NRF_ESB_PROTOCOL_ESB_DPL:
wkleunen	1:66f95e364222	342	update_rf_payload_format = update_rf_payload_format_esb_dpl;
wkleunen	1:66f95e364222	343	break;
wkleunen	1:66f95e364222	344
wkleunen	1:66f95e364222	345	case NRF_ESB_PROTOCOL_ESB:
wkleunen	1:66f95e364222	346	update_rf_payload_format = update_rf_payload_format_esb;
wkleunen	1:66f95e364222	347	break;
wkleunen	1:66f95e364222	348
wkleunen	1:66f95e364222	349	default:
wkleunen	1:66f95e364222	350	// Should not be reached
wkleunen	1:66f95e364222	351	return false;
wkleunen	1:66f95e364222	352	}
wkleunen	1:66f95e364222	353	return true;
wkleunen	1:66f95e364222	354	}
wkleunen	1:66f95e364222	355
wkleunen	1:66f95e364222	356
wkleunen	1:66f95e364222	357	static bool update_radio_crc()
wkleunen	1:66f95e364222	358	{
wkleunen	1:66f95e364222	359	switch(m_config_local.crc)
wkleunen	1:66f95e364222	360	{
wkleunen	1:66f95e364222	361	case NRF_ESB_CRC_16BIT:
wkleunen	1:66f95e364222	362	NRF_RADIO->CRCINIT = 0xFFFFUL; // Initial value
wkleunen	1:66f95e364222	363	NRF_RADIO->CRCPOLY = 0x11021UL; // CRC poly: x^16+x^12^x^5+1
wkleunen	1:66f95e364222	364	break;
wkleunen	1:66f95e364222	365
wkleunen	1:66f95e364222	366	case NRF_ESB_CRC_8BIT:
wkleunen	1:66f95e364222	367	NRF_RADIO->CRCINIT = 0xFFUL; // Initial value
wkleunen	1:66f95e364222	368	NRF_RADIO->CRCPOLY = 0x107UL; // CRC poly: x^8+x^2^x^1+1
wkleunen	1:66f95e364222	369	break;
wkleunen	1:66f95e364222	370
wkleunen	1:66f95e364222	371	case NRF_ESB_CRC_OFF:
wkleunen	1:66f95e364222	372	break;
wkleunen	1:66f95e364222	373
wkleunen	1:66f95e364222	374	default:
wkleunen	1:66f95e364222	375	return false;
wkleunen	1:66f95e364222	376	}
wkleunen	1:66f95e364222	377	NRF_RADIO->CRCCNF = m_config_local.crc << RADIO_CRCCNF_LEN_Pos;
wkleunen	1:66f95e364222	378	return true;
wkleunen	1:66f95e364222	379	}
wkleunen	1:66f95e364222	380
wkleunen	1:66f95e364222	381
wkleunen	1:66f95e364222	382	static bool update_radio_parameters()
wkleunen	1:66f95e364222	383	{
wkleunen	1:66f95e364222	384	bool params_valid = true;
wkleunen	1:66f95e364222	385	update_radio_tx_power();
wkleunen	1:66f95e364222	386	params_valid &= update_radio_bitrate();
wkleunen	1:66f95e364222	387	params_valid &= update_radio_protocol();
wkleunen	1:66f95e364222	388	params_valid &= update_radio_crc();
wkleunen	1:66f95e364222	389	update_rf_payload_format(m_config_local.payload_length);
wkleunen	1:66f95e364222	390	params_valid &= (m_config_local.retransmit_delay >= NRF_ESB_RETRANSMIT_DELAY_MIN);
wkleunen	1:66f95e364222	391	return params_valid;
wkleunen	1:66f95e364222	392	}
wkleunen	1:66f95e364222	393
wkleunen	1:66f95e364222	394
wkleunen	1:66f95e364222	395	static void reset_fifos()
wkleunen	1:66f95e364222	396	{
wkleunen	1:66f95e364222	397	m_tx_fifo.entry_point = 0;
wkleunen	1:66f95e364222	398	m_tx_fifo.exit_point = 0;
wkleunen	1:66f95e364222	399	m_tx_fifo.count = 0;
wkleunen	1:66f95e364222	400
wkleunen	1:66f95e364222	401	m_rx_fifo.entry_point = 0;
wkleunen	1:66f95e364222	402	m_rx_fifo.exit_point = 0;
wkleunen	1:66f95e364222	403	m_rx_fifo.count = 0;
wkleunen	1:66f95e364222	404	}
wkleunen	1:66f95e364222	405
wkleunen	1:66f95e364222	406
wkleunen	1:66f95e364222	407	static void initialize_fifos()
wkleunen	1:66f95e364222	408	{
wkleunen	1:66f95e364222	409	reset_fifos();
wkleunen	1:66f95e364222	410
wkleunen	1:66f95e364222	411	for (int i = 0; i < NRF_ESB_TX_FIFO_SIZE; i++)
wkleunen	1:66f95e364222	412	{
wkleunen	1:66f95e364222	413	m_tx_fifo.p_payload[i] = &m_tx_fifo_payload[i];
wkleunen	1:66f95e364222	414	}
wkleunen	1:66f95e364222	415
wkleunen	1:66f95e364222	416	for (int i = 0; i < NRF_ESB_RX_FIFO_SIZE; i++)
wkleunen	1:66f95e364222	417	{
wkleunen	1:66f95e364222	418	m_rx_fifo.p_payload[i] = &m_rx_fifo_payload[i];
wkleunen	1:66f95e364222	419	}
wkleunen	1:66f95e364222	420	}
wkleunen	1:66f95e364222	421
wkleunen	1:66f95e364222	422
wkleunen	1:66f95e364222	423	static void tx_fifo_remove_last()
wkleunen	1:66f95e364222	424	{
wkleunen	1:66f95e364222	425	if (m_tx_fifo.count > 0)
wkleunen	1:66f95e364222	426	{
wkleunen	1:66f95e364222	427	DISABLE_RF_IRQ();
wkleunen	1:66f95e364222	428
wkleunen	1:66f95e364222	429	m_tx_fifo.count--;
wkleunen	1:66f95e364222	430	if (++m_tx_fifo.exit_point >= NRF_ESB_TX_FIFO_SIZE)
wkleunen	1:66f95e364222	431	{
wkleunen	1:66f95e364222	432	m_tx_fifo.exit_point = 0;
wkleunen	1:66f95e364222	433	}
wkleunen	1:66f95e364222	434
wkleunen	1:66f95e364222	435	ENABLE_RF_IRQ();
wkleunen	1:66f95e364222	436	}
wkleunen	1:66f95e364222	437	}
wkleunen	1:66f95e364222	438
wkleunen	1:66f95e364222	439	/** @brief Function to push the content of the rx_buffer to the RX FIFO.
wkleunen	1:66f95e364222	440	*
wkleunen	1:66f95e364222	441	* The module will point the register NRF_RADIO->PACKETPTR to a buffer for receiving packets.
wkleunen	1:66f95e364222	442	* After receiving a packet the module will call this function to copy the received data to
wkleunen	1:66f95e364222	443	* the RX FIFO.
wkleunen	1:66f95e364222	444	*
wkleunen	1:66f95e364222	445	* @param pipe Pipe number to set for the packet.
wkleunen	1:66f95e364222	446	* @param pid Packet ID.
wkleunen	1:66f95e364222	447	*
wkleunen	1:66f95e364222	448	* @retval true Operation successful.
wkleunen	1:66f95e364222	449	* @retval false Operation failed.
wkleunen	1:66f95e364222	450	*/
wkleunen	1:66f95e364222	451	static bool rx_fifo_push_rfbuf(uint8_t pipe, uint8_t pid)
wkleunen	1:66f95e364222	452	{
wkleunen	1:66f95e364222	453	if (m_rx_fifo.count < NRF_ESB_RX_FIFO_SIZE)
wkleunen	1:66f95e364222	454	{
wkleunen	1:66f95e364222	455	if (m_config_local.protocol == NRF_ESB_PROTOCOL_ESB_DPL)
wkleunen	1:66f95e364222	456	{
wkleunen	1:66f95e364222	457	if (m_rx_payload_buffer[0] > NRF_ESB_MAX_PAYLOAD_LENGTH)
wkleunen	1:66f95e364222	458	{
wkleunen	1:66f95e364222	459	return false;
wkleunen	1:66f95e364222	460	}
wkleunen	1:66f95e364222	461
wkleunen	1:66f95e364222	462	m_rx_fifo.p_payload[m_rx_fifo.entry_point]->length = m_rx_payload_buffer[0];
wkleunen	1:66f95e364222	463	}
wkleunen	1:66f95e364222	464	else if (m_config_local.mode == NRF_ESB_MODE_PTX)
wkleunen	1:66f95e364222	465	{
wkleunen	1:66f95e364222	466	// Received packet is an acknowledgment
wkleunen	1:66f95e364222	467	m_rx_fifo.p_payload[m_rx_fifo.entry_point]->length = 0;
wkleunen	1:66f95e364222	468	}
wkleunen	1:66f95e364222	469	else
wkleunen	1:66f95e364222	470	{
wkleunen	1:66f95e364222	471	m_rx_fifo.p_payload[m_rx_fifo.entry_point]->length = m_config_local.payload_length;
wkleunen	1:66f95e364222	472	}
wkleunen	1:66f95e364222	473
wkleunen	1:66f95e364222	474	memcpy(m_rx_fifo.p_payload[m_rx_fifo.entry_point]->data, &m_rx_payload_buffer[2],
wkleunen	1:66f95e364222	475	m_rx_fifo.p_payload[m_rx_fifo.entry_point]->length);
wkleunen	1:66f95e364222	476
wkleunen	1:66f95e364222	477	m_rx_fifo.p_payload[m_rx_fifo.entry_point]->pipe = pipe;
wkleunen	1:66f95e364222	478	m_rx_fifo.p_payload[m_rx_fifo.entry_point]->rssi = NRF_RADIO->RSSISAMPLE;
wkleunen	1:66f95e364222	479	m_rx_fifo.p_payload[m_rx_fifo.entry_point]->pid = pid;
wkleunen	1:66f95e364222	480	m_rx_fifo.p_payload[m_rx_fifo.entry_point]->noack = !(m_rx_payload_buffer[1] & 0x01);
wkleunen	1:66f95e364222	481	if (++m_rx_fifo.entry_point >= NRF_ESB_RX_FIFO_SIZE)
wkleunen	1:66f95e364222	482	{
wkleunen	1:66f95e364222	483	m_rx_fifo.entry_point = 0;
wkleunen	1:66f95e364222	484	}
wkleunen	1:66f95e364222	485	m_rx_fifo.count++;
wkleunen	1:66f95e364222	486
wkleunen	1:66f95e364222	487	return true;
wkleunen	1:66f95e364222	488	}
wkleunen	1:66f95e364222	489
wkleunen	1:66f95e364222	490	return false;
wkleunen	1:66f95e364222	491	}
wkleunen	1:66f95e364222	492
wkleunen	1:66f95e364222	493
wkleunen	1:66f95e364222	494	static void sys_timer_init()
wkleunen	1:66f95e364222	495	{
wkleunen	1:66f95e364222	496	// Configure the system timer with a 1 MHz base frequency
wkleunen	1:66f95e364222	497	NRF_ESB_SYS_TIMER->PRESCALER = 4;
wkleunen	1:66f95e364222	498	NRF_ESB_SYS_TIMER->BITMODE = TIMER_BITMODE_BITMODE_16Bit;
wkleunen	1:66f95e364222	499	NRF_ESB_SYS_TIMER->SHORTS = TIMER_SHORTS_COMPARE1_CLEAR_Msk \| TIMER_SHORTS_COMPARE1_STOP_Msk;
wkleunen	1:66f95e364222	500	}
wkleunen	1:66f95e364222	501
wkleunen	1:66f95e364222	502
wkleunen	1:66f95e364222	503	static void ppi_init()
wkleunen	1:66f95e364222	504	{
wkleunen	1:66f95e364222	505	NRF_PPI->CH[NRF_ESB_PPI_TIMER_START].EEP = (uint32_t)&NRF_RADIO->EVENTS_READY;
wkleunen	1:66f95e364222	506	NRF_PPI->CH[NRF_ESB_PPI_TIMER_START].TEP = (uint32_t)&NRF_ESB_SYS_TIMER->TASKS_START;
wkleunen	1:66f95e364222	507
wkleunen	1:66f95e364222	508	NRF_PPI->CH[NRF_ESB_PPI_TIMER_STOP].EEP = (uint32_t)&NRF_RADIO->EVENTS_ADDRESS;
wkleunen	1:66f95e364222	509	NRF_PPI->CH[NRF_ESB_PPI_TIMER_STOP].TEP = (uint32_t)&NRF_ESB_SYS_TIMER->TASKS_STOP;
wkleunen	1:66f95e364222	510
wkleunen	1:66f95e364222	511	NRF_PPI->CH[NRF_ESB_PPI_RX_TIMEOUT].EEP = (uint32_t)&NRF_ESB_SYS_TIMER->EVENTS_COMPARE[0];
wkleunen	1:66f95e364222	512	NRF_PPI->CH[NRF_ESB_PPI_RX_TIMEOUT].TEP = (uint32_t)&NRF_RADIO->TASKS_DISABLE;
wkleunen	1:66f95e364222	513
wkleunen	1:66f95e364222	514	NRF_PPI->CH[NRF_ESB_PPI_TX_START].EEP = (uint32_t)&NRF_ESB_SYS_TIMER->EVENTS_COMPARE[1];
wkleunen	1:66f95e364222	515	NRF_PPI->CH[NRF_ESB_PPI_TX_START].TEP = (uint32_t)&NRF_RADIO->TASKS_TXEN;
wkleunen	1:66f95e364222	516	}
wkleunen	1:66f95e364222	517
wkleunen	1:66f95e364222	518
wkleunen	1:66f95e364222	519	static void start_tx_transaction()
wkleunen	1:66f95e364222	520	{
wkleunen	1:66f95e364222	521	bool ack;
wkleunen	1:66f95e364222	522
wkleunen	1:66f95e364222	523	m_last_tx_attempts = 1;
wkleunen	1:66f95e364222	524	// Prepare the payload
wkleunen	1:66f95e364222	525	mp_current_payload = m_tx_fifo.p_payload[m_tx_fifo.exit_point];
wkleunen	1:66f95e364222	526
wkleunen	1:66f95e364222	527
wkleunen	1:66f95e364222	528	switch (m_config_local.protocol)
wkleunen	1:66f95e364222	529	{
wkleunen	1:66f95e364222	530	case NRF_ESB_PROTOCOL_ESB:
wkleunen	1:66f95e364222	531	update_rf_payload_format(mp_current_payload->length);
wkleunen	1:66f95e364222	532	m_tx_payload_buffer[0] = mp_current_payload->pid;
wkleunen	1:66f95e364222	533	m_tx_payload_buffer[1] = 0;
wkleunen	1:66f95e364222	534	memcpy(&m_tx_payload_buffer[2], mp_current_payload->data, mp_current_payload->length);
wkleunen	1:66f95e364222	535
wkleunen	1:66f95e364222	536	NRF_RADIO->SHORTS = m_radio_shorts_common \| RADIO_SHORTS_DISABLED_RXEN_Msk;
wkleunen	1:66f95e364222	537	NRF_RADIO->INTENSET = RADIO_INTENSET_DISABLED_Msk \| RADIO_INTENSET_READY_Msk;
wkleunen	1:66f95e364222	538
wkleunen	1:66f95e364222	539	// Configure the retransmit counter
wkleunen	1:66f95e364222	540	m_retransmits_remaining = m_config_local.retransmit_count;
wkleunen	1:66f95e364222	541	on_radio_disabled = on_radio_disabled_tx;
wkleunen	1:66f95e364222	542	m_nrf_esb_mainstate = NRF_ESB_STATE_PTX_TX_ACK;
wkleunen	1:66f95e364222	543	break;
wkleunen	1:66f95e364222	544
wkleunen	1:66f95e364222	545	case NRF_ESB_PROTOCOL_ESB_DPL:
wkleunen	1:66f95e364222	546	ack = !mp_current_payload->noack \|\| !m_config_local.selective_auto_ack;
wkleunen	1:66f95e364222	547	m_tx_payload_buffer[0] = mp_current_payload->length;
wkleunen	1:66f95e364222	548	m_tx_payload_buffer[1] = mp_current_payload->pid << 1;
wkleunen	1:66f95e364222	549	m_tx_payload_buffer[1] \|= mp_current_payload->noack ? 0x00 : 0x01;
wkleunen	1:66f95e364222	550	memcpy(&m_tx_payload_buffer[2], mp_current_payload->data, mp_current_payload->length);
wkleunen	1:66f95e364222	551
wkleunen	1:66f95e364222	552	// Handling ack if noack is set to false or if selective auto ack is turned off
wkleunen	1:66f95e364222	553	if (ack)
wkleunen	1:66f95e364222	554	{
wkleunen	1:66f95e364222	555	NRF_RADIO->SHORTS = m_radio_shorts_common \| RADIO_SHORTS_DISABLED_RXEN_Msk;
wkleunen	1:66f95e364222	556	NRF_RADIO->INTENSET = RADIO_INTENSET_DISABLED_Msk \| RADIO_INTENSET_READY_Msk;
wkleunen	1:66f95e364222	557
wkleunen	1:66f95e364222	558	// Configure the retransmit counter
wkleunen	1:66f95e364222	559	m_retransmits_remaining = m_config_local.retransmit_count;
wkleunen	1:66f95e364222	560	on_radio_disabled = on_radio_disabled_tx;
wkleunen	1:66f95e364222	561	m_nrf_esb_mainstate = NRF_ESB_STATE_PTX_TX_ACK;
wkleunen	1:66f95e364222	562	}
wkleunen	1:66f95e364222	563	else
wkleunen	1:66f95e364222	564	{
wkleunen	1:66f95e364222	565	NRF_RADIO->SHORTS = m_radio_shorts_common;
wkleunen	1:66f95e364222	566	NRF_RADIO->INTENSET = RADIO_INTENSET_DISABLED_Msk;
wkleunen	1:66f95e364222	567	on_radio_disabled = on_radio_disabled_tx_noack;
wkleunen	1:66f95e364222	568	m_nrf_esb_mainstate = NRF_ESB_STATE_PTX_TX;
wkleunen	1:66f95e364222	569	}
wkleunen	1:66f95e364222	570	break;
wkleunen	1:66f95e364222	571
wkleunen	1:66f95e364222	572	default:
wkleunen	1:66f95e364222	573	// Should not be reached
wkleunen	1:66f95e364222	574	break;
wkleunen	1:66f95e364222	575	}
wkleunen	1:66f95e364222	576
wkleunen	1:66f95e364222	577	NRF_RADIO->TXADDRESS = mp_current_payload->pipe;
wkleunen	1:66f95e364222	578	NRF_RADIO->RXADDRESSES = 1 << mp_current_payload->pipe;
wkleunen	1:66f95e364222	579
wkleunen	1:66f95e364222	580	NRF_RADIO->FREQUENCY = m_esb_addr.rf_channel;
wkleunen	1:66f95e364222	581	NRF_RADIO->PACKETPTR = (uint32_t)m_tx_payload_buffer;
wkleunen	1:66f95e364222	582
wkleunen	1:66f95e364222	583	NVIC_ClearPendingIRQ(RADIO_IRQn);
wkleunen	1:66f95e364222	584	NVIC_EnableIRQ(RADIO_IRQn);
wkleunen	1:66f95e364222	585
wkleunen	1:66f95e364222	586	NRF_RADIO->EVENTS_ADDRESS = 0;
wkleunen	1:66f95e364222	587	NRF_RADIO->EVENTS_PAYLOAD = 0;
wkleunen	1:66f95e364222	588	NRF_RADIO->EVENTS_DISABLED = 0;
wkleunen	1:66f95e364222	589
wkleunen	1:66f95e364222	590	DEBUG_PIN_SET(DEBUGPIN4);
wkleunen	1:66f95e364222	591	NRF_RADIO->TASKS_TXEN = 1;
wkleunen	1:66f95e364222	592	}
wkleunen	1:66f95e364222	593
wkleunen	1:66f95e364222	594
wkleunen	1:66f95e364222	595	static void on_radio_disabled_tx_noack()
wkleunen	1:66f95e364222	596	{
wkleunen	1:66f95e364222	597	m_interrupt_flags \|= NRF_ESB_INT_TX_SUCCESS_MSK;
wkleunen	1:66f95e364222	598	tx_fifo_remove_last();
wkleunen	1:66f95e364222	599
wkleunen	1:66f95e364222	600	if (m_tx_fifo.count == 0)
wkleunen	1:66f95e364222	601	{
wkleunen	1:66f95e364222	602	m_nrf_esb_mainstate = NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	603	NVIC_SetPendingIRQ(ESB_EVT_IRQ);
wkleunen	1:66f95e364222	604	}
wkleunen	1:66f95e364222	605	else
wkleunen	1:66f95e364222	606	{
wkleunen	1:66f95e364222	607	NVIC_SetPendingIRQ(ESB_EVT_IRQ);
wkleunen	1:66f95e364222	608	start_tx_transaction();
wkleunen	1:66f95e364222	609	}
wkleunen	1:66f95e364222	610	}
wkleunen	1:66f95e364222	611
wkleunen	1:66f95e364222	612
wkleunen	1:66f95e364222	613	static void on_radio_disabled_tx()
wkleunen	1:66f95e364222	614	{
wkleunen	1:66f95e364222	615	// Remove the DISABLED -> RXEN shortcut, to make sure the radio stays
wkleunen	1:66f95e364222	616	// disabled after the RX window
wkleunen	1:66f95e364222	617	NRF_RADIO->SHORTS = m_radio_shorts_common;
wkleunen	1:66f95e364222	618
wkleunen	1:66f95e364222	619	// Make sure the timer is started the next time the radio is ready,
wkleunen	1:66f95e364222	620	// and that it will disable the radio automatically if no packet is
wkleunen	1:66f95e364222	621	// received by the time defined in m_wait_for_ack_timeout_us
wkleunen	1:66f95e364222	622	NRF_ESB_SYS_TIMER->CC[0] = m_wait_for_ack_timeout_us;
wkleunen	1:66f95e364222	623	NRF_ESB_SYS_TIMER->CC[1] = m_config_local.retransmit_delay - 130;
wkleunen	1:66f95e364222	624	NRF_ESB_SYS_TIMER->TASKS_CLEAR = 1;
wkleunen	1:66f95e364222	625	NRF_ESB_SYS_TIMER->EVENTS_COMPARE[0] = 0;
wkleunen	1:66f95e364222	626	NRF_ESB_SYS_TIMER->EVENTS_COMPARE[1] = 0;
wkleunen	1:66f95e364222	627
wkleunen	1:66f95e364222	628	NRF_PPI->CHENSET = (1 << NRF_ESB_PPI_TIMER_START) \|
wkleunen	1:66f95e364222	629	(1 << NRF_ESB_PPI_RX_TIMEOUT) \|
wkleunen	1:66f95e364222	630	(1 << NRF_ESB_PPI_TIMER_STOP);
wkleunen	1:66f95e364222	631	NRF_PPI->CHENCLR = (1 << NRF_ESB_PPI_TX_START);
wkleunen	1:66f95e364222	632	NRF_RADIO->EVENTS_END = 0;
wkleunen	1:66f95e364222	633
wkleunen	1:66f95e364222	634	if (m_config_local.protocol == NRF_ESB_PROTOCOL_ESB)
wkleunen	1:66f95e364222	635	{
wkleunen	1:66f95e364222	636	update_rf_payload_format(0);
wkleunen	1:66f95e364222	637	}
wkleunen	1:66f95e364222	638
wkleunen	1:66f95e364222	639	NRF_RADIO->PACKETPTR = (uint32_t)m_rx_payload_buffer;
wkleunen	1:66f95e364222	640	on_radio_disabled = on_radio_disabled_tx_wait_for_ack;
wkleunen	1:66f95e364222	641	m_nrf_esb_mainstate = NRF_ESB_STATE_PTX_RX_ACK;
wkleunen	1:66f95e364222	642	}
wkleunen	1:66f95e364222	643
wkleunen	1:66f95e364222	644
wkleunen	1:66f95e364222	645	static void on_radio_disabled_tx_wait_for_ack()
wkleunen	1:66f95e364222	646	{
wkleunen	1:66f95e364222	647	// This marks the completion of a TX_RX sequence (TX with ACK)
wkleunen	1:66f95e364222	648
wkleunen	1:66f95e364222	649	// Make sure the timer will not deactivate the radio if a packet is received
wkleunen	1:66f95e364222	650	NRF_PPI->CHENCLR = (1 << NRF_ESB_PPI_TIMER_START) \|
wkleunen	1:66f95e364222	651	(1 << NRF_ESB_PPI_RX_TIMEOUT) \|
wkleunen	1:66f95e364222	652	(1 << NRF_ESB_PPI_TIMER_STOP);
wkleunen	1:66f95e364222	653
wkleunen	1:66f95e364222	654	// If the radio has received a packet and the CRC status is OK
wkleunen	1:66f95e364222	655	if (NRF_RADIO->EVENTS_END && NRF_RADIO->CRCSTATUS != 0)
wkleunen	1:66f95e364222	656	{
wkleunen	1:66f95e364222	657	NRF_ESB_SYS_TIMER->TASKS_STOP = 1;
wkleunen	1:66f95e364222	658	NRF_PPI->CHENCLR = (1 << NRF_ESB_PPI_TX_START);
wkleunen	1:66f95e364222	659	m_interrupt_flags \|= NRF_ESB_INT_TX_SUCCESS_MSK;
wkleunen	1:66f95e364222	660	m_last_tx_attempts = m_config_local.retransmit_count - m_retransmits_remaining + 1;
wkleunen	1:66f95e364222	661
wkleunen	1:66f95e364222	662	tx_fifo_remove_last();
wkleunen	1:66f95e364222	663
wkleunen	1:66f95e364222	664	if (m_config_local.protocol != NRF_ESB_PROTOCOL_ESB && m_rx_payload_buffer[0] > 0)
wkleunen	1:66f95e364222	665	{
wkleunen	1:66f95e364222	666	if (rx_fifo_push_rfbuf((uint8_t)NRF_RADIO->TXADDRESS, m_rx_payload_buffer[1] >> 1))
wkleunen	1:66f95e364222	667	{
wkleunen	1:66f95e364222	668	m_interrupt_flags \|= NRF_ESB_INT_RX_DATA_RECEIVED_MSK;
wkleunen	1:66f95e364222	669	}
wkleunen	1:66f95e364222	670	}
wkleunen	1:66f95e364222	671
wkleunen	1:66f95e364222	672	if ((m_tx_fifo.count == 0) \|\| (m_config_local.tx_mode == NRF_ESB_TXMODE_MANUAL))
wkleunen	1:66f95e364222	673	{
wkleunen	1:66f95e364222	674	m_nrf_esb_mainstate = NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	675	NVIC_SetPendingIRQ(ESB_EVT_IRQ);
wkleunen	1:66f95e364222	676	}
wkleunen	1:66f95e364222	677	else
wkleunen	1:66f95e364222	678	{
wkleunen	1:66f95e364222	679	NVIC_SetPendingIRQ(ESB_EVT_IRQ);
wkleunen	1:66f95e364222	680	start_tx_transaction();
wkleunen	1:66f95e364222	681	}
wkleunen	1:66f95e364222	682	}
wkleunen	1:66f95e364222	683	else
wkleunen	1:66f95e364222	684	{
wkleunen	1:66f95e364222	685	if (m_retransmits_remaining-- == 0)
wkleunen	1:66f95e364222	686	{
wkleunen	1:66f95e364222	687	NRF_ESB_SYS_TIMER->TASKS_STOP = 1;
wkleunen	1:66f95e364222	688	NRF_PPI->CHENCLR = (1 << NRF_ESB_PPI_TX_START);
wkleunen	1:66f95e364222	689	// All retransmits are expended, and the TX operation is suspended
wkleunen	1:66f95e364222	690	m_last_tx_attempts = m_config_local.retransmit_count + 1;
wkleunen	1:66f95e364222	691	m_interrupt_flags \|= NRF_ESB_INT_TX_FAILED_MSK;
wkleunen	1:66f95e364222	692
wkleunen	1:66f95e364222	693	m_nrf_esb_mainstate = NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	694	NVIC_SetPendingIRQ(ESB_EVT_IRQ);
wkleunen	1:66f95e364222	695	}
wkleunen	1:66f95e364222	696	else
wkleunen	1:66f95e364222	697	{
wkleunen	1:66f95e364222	698	// There are still more retransmits left, TX mode should be
wkleunen	1:66f95e364222	699	// entered again as soon as the system timer reaches CC[1].
wkleunen	1:66f95e364222	700	NRF_RADIO->SHORTS = m_radio_shorts_common \| RADIO_SHORTS_DISABLED_RXEN_Msk;
wkleunen	1:66f95e364222	701	update_rf_payload_format(mp_current_payload->length);
wkleunen	1:66f95e364222	702	NRF_RADIO->PACKETPTR = (uint32_t)m_tx_payload_buffer;
wkleunen	1:66f95e364222	703	on_radio_disabled = on_radio_disabled_tx;
wkleunen	1:66f95e364222	704	m_nrf_esb_mainstate = NRF_ESB_STATE_PTX_TX_ACK;
wkleunen	1:66f95e364222	705	NRF_ESB_SYS_TIMER->TASKS_START = 1;
wkleunen	1:66f95e364222	706	NRF_PPI->CHENSET = (1 << NRF_ESB_PPI_TX_START);
wkleunen	1:66f95e364222	707	if (NRF_ESB_SYS_TIMER->EVENTS_COMPARE[1])
wkleunen	1:66f95e364222	708	{
wkleunen	1:66f95e364222	709	NRF_RADIO->TASKS_TXEN = 1;
wkleunen	1:66f95e364222	710	}
wkleunen	1:66f95e364222	711	}
wkleunen	1:66f95e364222	712	}
wkleunen	1:66f95e364222	713	}
wkleunen	1:66f95e364222	714
wkleunen	1:66f95e364222	715	static void clear_events_restart_rx(void)
wkleunen	1:66f95e364222	716	{
wkleunen	1:66f95e364222	717	NRF_RADIO->SHORTS = m_radio_shorts_common;
wkleunen	1:66f95e364222	718	update_rf_payload_format(m_config_local.payload_length);
wkleunen	1:66f95e364222	719	NRF_RADIO->PACKETPTR = (uint32_t)m_rx_payload_buffer;
wkleunen	1:66f95e364222	720	NRF_RADIO->EVENTS_DISABLED = 0;
wkleunen	1:66f95e364222	721	NRF_RADIO->TASKS_DISABLE = 1;
wkleunen	1:66f95e364222	722
wkleunen	1:66f95e364222	723	while (NRF_RADIO->EVENTS_DISABLED == 0);
wkleunen	1:66f95e364222	724
wkleunen	1:66f95e364222	725	NRF_RADIO->EVENTS_DISABLED = 0;
wkleunen	1:66f95e364222	726	NRF_RADIO->SHORTS = m_radio_shorts_common \| RADIO_SHORTS_DISABLED_TXEN_Msk;
wkleunen	1:66f95e364222	727
wkleunen	1:66f95e364222	728	NRF_RADIO->TASKS_RXEN = 1;
wkleunen	1:66f95e364222	729	}
wkleunen	1:66f95e364222	730
wkleunen	1:66f95e364222	731	static void on_radio_disabled_rx(void)
wkleunen	1:66f95e364222	732	{
wkleunen	1:66f95e364222	733	bool ack = false;
wkleunen	1:66f95e364222	734	bool retransmit_payload = false;
wkleunen	1:66f95e364222	735	bool send_rx_event = true;
wkleunen	1:66f95e364222	736	pipe_info_t * p_pipe_info;
wkleunen	1:66f95e364222	737
wkleunen	1:66f95e364222	738	if (NRF_RADIO->CRCSTATUS == 0)
wkleunen	1:66f95e364222	739	{
wkleunen	1:66f95e364222	740	clear_events_restart_rx();
wkleunen	1:66f95e364222	741	return;
wkleunen	1:66f95e364222	742	}
wkleunen	1:66f95e364222	743
wkleunen	1:66f95e364222	744	if (m_rx_fifo.count >= NRF_ESB_RX_FIFO_SIZE)
wkleunen	1:66f95e364222	745	{
wkleunen	1:66f95e364222	746	clear_events_restart_rx();
wkleunen	1:66f95e364222	747	return;
wkleunen	1:66f95e364222	748	}
wkleunen	1:66f95e364222	749
wkleunen	1:66f95e364222	750	p_pipe_info = &m_rx_pipe_info[NRF_RADIO->RXMATCH];
wkleunen	1:66f95e364222	751	if (NRF_RADIO->RXCRC == p_pipe_info->crc &&
wkleunen	1:66f95e364222	752	(m_rx_payload_buffer[1] >> 1) == p_pipe_info->pid
wkleunen	1:66f95e364222	753	)
wkleunen	1:66f95e364222	754	{
wkleunen	1:66f95e364222	755	retransmit_payload = true;
wkleunen	1:66f95e364222	756	send_rx_event = false;
wkleunen	1:66f95e364222	757	}
wkleunen	1:66f95e364222	758
wkleunen	1:66f95e364222	759	p_pipe_info->pid = m_rx_payload_buffer[1] >> 1;
wkleunen	1:66f95e364222	760	p_pipe_info->crc = NRF_RADIO->RXCRC;
wkleunen	1:66f95e364222	761
wkleunen	1:66f95e364222	762	if ((m_config_local.selective_auto_ack == false) \|\| ((m_rx_payload_buffer[1] & 0x01) == 1))
wkleunen	1:66f95e364222	763	{
wkleunen	1:66f95e364222	764	ack = true;
wkleunen	1:66f95e364222	765	}
wkleunen	1:66f95e364222	766
wkleunen	1:66f95e364222	767	if (ack)
wkleunen	1:66f95e364222	768	{
wkleunen	1:66f95e364222	769	NRF_RADIO->SHORTS = m_radio_shorts_common \| RADIO_SHORTS_DISABLED_RXEN_Msk;
wkleunen	1:66f95e364222	770
wkleunen	1:66f95e364222	771	switch (m_config_local.protocol)
wkleunen	1:66f95e364222	772	{
wkleunen	1:66f95e364222	773	case NRF_ESB_PROTOCOL_ESB_DPL:
wkleunen	1:66f95e364222	774	{
wkleunen	1:66f95e364222	775	if (m_tx_fifo.count > 0 &&
wkleunen	1:66f95e364222	776	(m_tx_fifo.p_payload[m_tx_fifo.exit_point]->pipe == NRF_RADIO->RXMATCH)
wkleunen	1:66f95e364222	777	)
wkleunen	1:66f95e364222	778	{
wkleunen	1:66f95e364222	779	// Pipe stays in ACK with payload until TX FIFO is empty
wkleunen	1:66f95e364222	780	// Do not report TX success on first ack payload or retransmit
wkleunen	1:66f95e364222	781	if (p_pipe_info->ack_payload == true && !retransmit_payload)
wkleunen	1:66f95e364222	782	{
wkleunen	1:66f95e364222	783	if (++m_tx_fifo.exit_point >= NRF_ESB_TX_FIFO_SIZE)
wkleunen	1:66f95e364222	784	{
wkleunen	1:66f95e364222	785	m_tx_fifo.exit_point = 0;
wkleunen	1:66f95e364222	786	}
wkleunen	1:66f95e364222	787
wkleunen	1:66f95e364222	788	m_tx_fifo.count--;
wkleunen	1:66f95e364222	789
wkleunen	1:66f95e364222	790	// ACK payloads also require TX_DS
wkleunen	1:66f95e364222	791	// (page 40 of the 'nRF24LE1_Product_Specification_rev1_6.pdf').
wkleunen	1:66f95e364222	792	m_interrupt_flags \|= NRF_ESB_INT_TX_SUCCESS_MSK;
wkleunen	1:66f95e364222	793	}
wkleunen	1:66f95e364222	794
wkleunen	1:66f95e364222	795	p_pipe_info->ack_payload = true;
wkleunen	1:66f95e364222	796
wkleunen	1:66f95e364222	797	mp_current_payload = m_tx_fifo.p_payload[m_tx_fifo.exit_point];
wkleunen	1:66f95e364222	798
wkleunen	1:66f95e364222	799	update_rf_payload_format(mp_current_payload->length);
wkleunen	1:66f95e364222	800	m_tx_payload_buffer[0] = mp_current_payload->length;
wkleunen	1:66f95e364222	801	memcpy(&m_tx_payload_buffer[2],
wkleunen	1:66f95e364222	802	mp_current_payload->data,
wkleunen	1:66f95e364222	803	mp_current_payload->length);
wkleunen	1:66f95e364222	804	}
wkleunen	1:66f95e364222	805	else
wkleunen	1:66f95e364222	806	{
wkleunen	1:66f95e364222	807	p_pipe_info->ack_payload = false;
wkleunen	1:66f95e364222	808	update_rf_payload_format(0);
wkleunen	1:66f95e364222	809	m_tx_payload_buffer[0] = 0;
wkleunen	1:66f95e364222	810	}
wkleunen	1:66f95e364222	811
wkleunen	1:66f95e364222	812	m_tx_payload_buffer[1] = m_rx_payload_buffer[1];
wkleunen	1:66f95e364222	813	}
wkleunen	1:66f95e364222	814	break;
wkleunen	1:66f95e364222	815
wkleunen	1:66f95e364222	816	case NRF_ESB_PROTOCOL_ESB:
wkleunen	1:66f95e364222	817	{
wkleunen	1:66f95e364222	818	update_rf_payload_format(0);
wkleunen	1:66f95e364222	819	m_tx_payload_buffer[0] = m_rx_payload_buffer[0];
wkleunen	1:66f95e364222	820	m_tx_payload_buffer[1] = 0;
wkleunen	1:66f95e364222	821	}
wkleunen	1:66f95e364222	822	break;
wkleunen	1:66f95e364222	823	}
wkleunen	1:66f95e364222	824
wkleunen	1:66f95e364222	825	m_nrf_esb_mainstate = NRF_ESB_STATE_PRX_SEND_ACK;
wkleunen	1:66f95e364222	826	NRF_RADIO->TXADDRESS = NRF_RADIO->RXMATCH;
wkleunen	1:66f95e364222	827	NRF_RADIO->PACKETPTR = (uint32_t)m_tx_payload_buffer;
wkleunen	1:66f95e364222	828	on_radio_disabled = on_radio_disabled_rx_ack;
wkleunen	1:66f95e364222	829	}
wkleunen	1:66f95e364222	830	else
wkleunen	1:66f95e364222	831	{
wkleunen	1:66f95e364222	832	clear_events_restart_rx();
wkleunen	1:66f95e364222	833	}
wkleunen	1:66f95e364222	834
wkleunen	1:66f95e364222	835	if (send_rx_event)
wkleunen	1:66f95e364222	836	{
wkleunen	1:66f95e364222	837	// Push the new packet to the RX buffer and trigger a received event if the operation was
wkleunen	1:66f95e364222	838	// successful.
wkleunen	1:66f95e364222	839	if (rx_fifo_push_rfbuf(NRF_RADIO->RXMATCH, p_pipe_info->pid))
wkleunen	1:66f95e364222	840	{
wkleunen	1:66f95e364222	841	m_interrupt_flags \|= NRF_ESB_INT_RX_DATA_RECEIVED_MSK;
wkleunen	1:66f95e364222	842	NVIC_SetPendingIRQ(ESB_EVT_IRQ);
wkleunen	1:66f95e364222	843	}
wkleunen	1:66f95e364222	844	}
wkleunen	1:66f95e364222	845	}
wkleunen	1:66f95e364222	846
wkleunen	1:66f95e364222	847
wkleunen	1:66f95e364222	848	static void on_radio_disabled_rx_ack(void)
wkleunen	1:66f95e364222	849	{
wkleunen	1:66f95e364222	850	NRF_RADIO->SHORTS = m_radio_shorts_common \| RADIO_SHORTS_DISABLED_TXEN_Msk;
wkleunen	1:66f95e364222	851	update_rf_payload_format(m_config_local.payload_length);
wkleunen	1:66f95e364222	852
wkleunen	1:66f95e364222	853	NRF_RADIO->PACKETPTR = (uint32_t)m_rx_payload_buffer;
wkleunen	1:66f95e364222	854	on_radio_disabled = on_radio_disabled_rx;
wkleunen	1:66f95e364222	855
wkleunen	1:66f95e364222	856	m_nrf_esb_mainstate = NRF_ESB_STATE_PRX;
wkleunen	1:66f95e364222	857	}
wkleunen	1:66f95e364222	858
wkleunen	1:66f95e364222	859
wkleunen	1:66f95e364222	860	/**@brief Function for clearing pending interrupts.
wkleunen	1:66f95e364222	861	*
wkleunen	1:66f95e364222	862	* @param[in,out] p_interrupts Pointer to the value that holds the current interrupts.
wkleunen	1:66f95e364222	863	*
wkleunen	1:66f95e364222	864	* @retval NRF_SUCCESS If the interrupts were cleared successfully.
wkleunen	1:66f95e364222	865	* @retval NRF_ERROR_NULL If the required parameter was NULL.
wkleunen	1:66f95e364222	866	* @retval NRF_INVALID_STATE If the module is not initialized.
wkleunen	1:66f95e364222	867	*/
wkleunen	1:66f95e364222	868	static uint32_t nrf_esb_get_clear_interrupts(uint32_t * p_interrupts)
wkleunen	1:66f95e364222	869	{
wkleunen	1:66f95e364222	870	VERIFY_TRUE(m_esb_initialized, NRF_ERROR_INVALID_STATE);
wkleunen	1:66f95e364222	871	VERIFY_PARAM_NOT_NULL(p_interrupts);
wkleunen	1:66f95e364222	872
wkleunen	1:66f95e364222	873	DISABLE_RF_IRQ();
wkleunen	1:66f95e364222	874
wkleunen	1:66f95e364222	875	*p_interrupts = m_interrupt_flags;
wkleunen	1:66f95e364222	876	m_interrupt_flags = 0;
wkleunen	1:66f95e364222	877
wkleunen	1:66f95e364222	878	ENABLE_RF_IRQ();
wkleunen	1:66f95e364222	879
wkleunen	1:66f95e364222	880	return NRF_SUCCESS;
wkleunen	1:66f95e364222	881	}
wkleunen	1:66f95e364222	882
wkleunen	1:66f95e364222	883
wkleunen	1:66f95e364222	884	/*
wkleunen	1:66f95e364222	885	void RADIO_IRQHandler()
wkleunen	1:66f95e364222	886	{
wkleunen	1:66f95e364222	887	if (NRF_RADIO->EVENTS_READY && (NRF_RADIO->INTENSET & RADIO_INTENSET_READY_Msk))
wkleunen	1:66f95e364222	888	{
wkleunen	1:66f95e364222	889	NRF_RADIO->EVENTS_READY = 0;
wkleunen	1:66f95e364222	890	DEBUG_PIN_SET(DEBUGPIN1);
wkleunen	1:66f95e364222	891	}
wkleunen	1:66f95e364222	892
wkleunen	1:66f95e364222	893	if (NRF_RADIO->EVENTS_END && (NRF_RADIO->INTENSET & RADIO_INTENSET_END_Msk))
wkleunen	1:66f95e364222	894	{
wkleunen	1:66f95e364222	895	NRF_RADIO->EVENTS_END = 0;
wkleunen	1:66f95e364222	896	DEBUG_PIN_SET(DEBUGPIN2);
wkleunen	1:66f95e364222	897
wkleunen	1:66f95e364222	898	// Call the correct on_radio_end function, depending on the current protocol state
wkleunen	1:66f95e364222	899	if (on_radio_end)
wkleunen	1:66f95e364222	900	{
wkleunen	1:66f95e364222	901	on_radio_end();
wkleunen	1:66f95e364222	902	}
wkleunen	1:66f95e364222	903	}
wkleunen	1:66f95e364222	904
wkleunen	1:66f95e364222	905	if (NRF_RADIO->EVENTS_DISABLED && (NRF_RADIO->INTENSET & RADIO_INTENSET_DISABLED_Msk))
wkleunen	1:66f95e364222	906	{
wkleunen	1:66f95e364222	907	NRF_RADIO->EVENTS_DISABLED = 0;
wkleunen	1:66f95e364222	908	DEBUG_PIN_SET(DEBUGPIN3);
wkleunen	1:66f95e364222	909
wkleunen	1:66f95e364222	910	// Call the correct on_radio_disable function, depending on the current protocol state
wkleunen	1:66f95e364222	911	if (on_radio_disabled)
wkleunen	1:66f95e364222	912	{
wkleunen	1:66f95e364222	913	on_radio_disabled();
wkleunen	1:66f95e364222	914	}
wkleunen	1:66f95e364222	915	}
wkleunen	1:66f95e364222	916
wkleunen	1:66f95e364222	917	DEBUG_PIN_CLR(DEBUGPIN1);
wkleunen	1:66f95e364222	918	DEBUG_PIN_CLR(DEBUGPIN2);
wkleunen	1:66f95e364222	919	DEBUG_PIN_CLR(DEBUGPIN3);
wkleunen	1:66f95e364222	920	DEBUG_PIN_CLR(DEBUGPIN4);
wkleunen	1:66f95e364222	921	} */
wkleunen	1:66f95e364222	922
wkleunen	1:66f95e364222	923
wkleunen	1:66f95e364222	924	uint32_t nrf_esb_init(nrf_esb_config_t const * p_config)
wkleunen	1:66f95e364222	925	{
wkleunen	1:66f95e364222	926	uint32_t err_code;
wkleunen	1:66f95e364222	927
wkleunen	1:66f95e364222	928	VERIFY_PARAM_NOT_NULL(p_config);
wkleunen	1:66f95e364222	929
wkleunen	1:66f95e364222	930	if (m_esb_initialized)
wkleunen	1:66f95e364222	931	{
wkleunen	1:66f95e364222	932	err_code = nrf_esb_disable();
wkleunen	1:66f95e364222	933	if (err_code != NRF_SUCCESS)
wkleunen	1:66f95e364222	934	{
wkleunen	1:66f95e364222	935	return err_code;
wkleunen	1:66f95e364222	936	}
wkleunen	1:66f95e364222	937	}
wkleunen	1:66f95e364222	938
wkleunen	1:66f95e364222	939	m_event_handler = p_config->event_handler;
wkleunen	1:66f95e364222	940
wkleunen	1:66f95e364222	941	memcpy(&m_config_local, p_config, sizeof(nrf_esb_config_t));
wkleunen	1:66f95e364222	942
wkleunen	1:66f95e364222	943	m_interrupt_flags = 0;
wkleunen	1:66f95e364222	944
wkleunen	1:66f95e364222	945	memset(m_rx_pipe_info, 0, sizeof(m_rx_pipe_info));
wkleunen	1:66f95e364222	946	memset(m_pids, 0, sizeof(m_pids));
wkleunen	1:66f95e364222	947
wkleunen	1:66f95e364222	948	VERIFY_TRUE(update_radio_parameters(), NRF_ERROR_INVALID_PARAM);
wkleunen	1:66f95e364222	949
wkleunen	1:66f95e364222	950	// Configure radio address registers according to ESB default values
wkleunen	1:66f95e364222	951	NRF_RADIO->BASE0 = 0xE7E7E7E7;
wkleunen	1:66f95e364222	952	NRF_RADIO->BASE1 = 0x43434343;
wkleunen	1:66f95e364222	953	NRF_RADIO->PREFIX0 = 0x23C343E7;
wkleunen	1:66f95e364222	954	NRF_RADIO->PREFIX1 = 0x13E363A3;
wkleunen	1:66f95e364222	955
wkleunen	1:66f95e364222	956	initialize_fifos();
wkleunen	1:66f95e364222	957
wkleunen	1:66f95e364222	958	sys_timer_init();
wkleunen	1:66f95e364222	959
wkleunen	1:66f95e364222	960	ppi_init();
wkleunen	1:66f95e364222	961
wkleunen	1:66f95e364222	962	NVIC_SetPriority(RADIO_IRQn, m_config_local.radio_irq_priority & ESB_IRQ_PRIORITY_MSK);
wkleunen	1:66f95e364222	963	NVIC_SetPriority(ESB_EVT_IRQ, m_config_local.event_irq_priority & ESB_IRQ_PRIORITY_MSK);
wkleunen	1:66f95e364222	964	NVIC_EnableIRQ(ESB_EVT_IRQ);
wkleunen	1:66f95e364222	965
wkleunen	1:66f95e364222	966	#ifdef NRF52
wkleunen	1:66f95e364222	967	if(m_address_hang_fix_enable)
wkleunen	1:66f95e364222	968	{
wkleunen	1:66f95e364222	969	// Setup a timeout timer to start on an ADDRESS match, and stop on a BCMATCH event.
wkleunen	1:66f95e364222	970	// If the BCMATCH event never occurs the CC[0] event will fire, and the timer interrupt will disable the radio to recover.
wkleunen	1:66f95e364222	971	m_radio_shorts_common \|= RADIO_SHORTS_ADDRESS_BCSTART_Msk;
wkleunen	1:66f95e364222	972	NRF_RADIO->BCC = 2;
wkleunen	1:66f95e364222	973	NRF_ESB_BUGFIX_TIMER->BITMODE = TIMER_BITMODE_BITMODE_32Bit << TIMER_BITMODE_BITMODE_Pos;
wkleunen	1:66f95e364222	974	NRF_ESB_BUGFIX_TIMER->PRESCALER = 4;
wkleunen	1:66f95e364222	975	NRF_ESB_BUGFIX_TIMER->CC[0] = 5;
wkleunen	1:66f95e364222	976	NRF_ESB_BUGFIX_TIMER->SHORTS = TIMER_SHORTS_COMPARE0_STOP_Msk \| TIMER_SHORTS_COMPARE0_CLEAR_Msk;
wkleunen	1:66f95e364222	977	NRF_ESB_BUGFIX_TIMER->MODE = TIMER_MODE_MODE_Timer << TIMER_MODE_MODE_Pos;
wkleunen	1:66f95e364222	978	NRF_ESB_BUGFIX_TIMER->INTENSET = TIMER_INTENSET_COMPARE0_Msk;
wkleunen	1:66f95e364222	979	NRF_ESB_BUGFIX_TIMER->TASKS_CLEAR = 1;
wkleunen	1:66f95e364222	980	NVIC_SetPriority(NRF_ESB_BUGFIX_TIMER_IRQn, 5);
wkleunen	1:66f95e364222	981	NVIC_EnableIRQ(NRF_ESB_BUGFIX_TIMER_IRQn);
wkleunen	1:66f95e364222	982
wkleunen	1:66f95e364222	983	NRF_PPI->CH[NRF_ESB_PPI_BUGFIX1].EEP = (uint32_t)&NRF_RADIO->EVENTS_ADDRESS;
wkleunen	1:66f95e364222	984	NRF_PPI->CH[NRF_ESB_PPI_BUGFIX1].TEP = (uint32_t)&NRF_ESB_BUGFIX_TIMER->TASKS_START;
wkleunen	1:66f95e364222	985
wkleunen	1:66f95e364222	986	NRF_PPI->CH[NRF_ESB_PPI_BUGFIX2].EEP = (uint32_t)&NRF_RADIO->EVENTS_BCMATCH;
wkleunen	1:66f95e364222	987	NRF_PPI->CH[NRF_ESB_PPI_BUGFIX2].TEP = (uint32_t)&NRF_ESB_BUGFIX_TIMER->TASKS_STOP;
wkleunen	1:66f95e364222	988
wkleunen	1:66f95e364222	989	NRF_PPI->CH[NRF_ESB_PPI_BUGFIX3].EEP = (uint32_t)&NRF_RADIO->EVENTS_BCMATCH;
wkleunen	1:66f95e364222	990	NRF_PPI->CH[NRF_ESB_PPI_BUGFIX3].TEP = (uint32_t)&NRF_ESB_BUGFIX_TIMER->TASKS_CLEAR;
wkleunen	1:66f95e364222	991
wkleunen	1:66f95e364222	992	NRF_PPI->CHENSET = (1 << NRF_ESB_PPI_BUGFIX1) \| (1 << NRF_ESB_PPI_BUGFIX2) \| (1 << NRF_ESB_PPI_BUGFIX3);
wkleunen	1:66f95e364222	993	}
wkleunen	1:66f95e364222	994	#endif
wkleunen	1:66f95e364222	995
wkleunen	1:66f95e364222	996	m_nrf_esb_mainstate = NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	997	m_esb_initialized = true;
wkleunen	1:66f95e364222	998
wkleunen	1:66f95e364222	999	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1000	}
wkleunen	1:66f95e364222	1001
wkleunen	1:66f95e364222	1002
wkleunen	1:66f95e364222	1003	uint32_t nrf_esb_suspend(void)
wkleunen	1:66f95e364222	1004	{
wkleunen	1:66f95e364222	1005	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1006
wkleunen	1:66f95e364222	1007	// Clear PPI
wkleunen	1:66f95e364222	1008	NRF_PPI->CHENCLR = (1 << NRF_ESB_PPI_TIMER_START) \|
wkleunen	1:66f95e364222	1009	(1 << NRF_ESB_PPI_TIMER_STOP) \|
wkleunen	1:66f95e364222	1010	(1 << NRF_ESB_PPI_RX_TIMEOUT) \|
wkleunen	1:66f95e364222	1011	(1 << NRF_ESB_PPI_TX_START);
wkleunen	1:66f95e364222	1012
wkleunen	1:66f95e364222	1013	m_nrf_esb_mainstate = NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	1014
wkleunen	1:66f95e364222	1015	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1016	}
wkleunen	1:66f95e364222	1017
wkleunen	1:66f95e364222	1018
wkleunen	1:66f95e364222	1019	uint32_t nrf_esb_disable(void)
wkleunen	1:66f95e364222	1020	{
wkleunen	1:66f95e364222	1021	// Clear PPI
wkleunen	1:66f95e364222	1022	NRF_PPI->CHENCLR = (1 << NRF_ESB_PPI_TIMER_START) \|
wkleunen	1:66f95e364222	1023	(1 << NRF_ESB_PPI_TIMER_STOP) \|
wkleunen	1:66f95e364222	1024	(1 << NRF_ESB_PPI_RX_TIMEOUT) \|
wkleunen	1:66f95e364222	1025	(1 << NRF_ESB_PPI_TX_START);
wkleunen	1:66f95e364222	1026
wkleunen	1:66f95e364222	1027	m_nrf_esb_mainstate = NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	1028
wkleunen	1:66f95e364222	1029	reset_fifos();
wkleunen	1:66f95e364222	1030
wkleunen	1:66f95e364222	1031	memset(m_rx_pipe_info, 0, sizeof(m_rx_pipe_info));
wkleunen	1:66f95e364222	1032	memset(m_pids, 0, sizeof(m_pids));
wkleunen	1:66f95e364222	1033
wkleunen	1:66f95e364222	1034	// Disable the radio
wkleunen	1:66f95e364222	1035	NVIC_DisableIRQ(ESB_EVT_IRQ);
wkleunen	1:66f95e364222	1036	NRF_RADIO->SHORTS = RADIO_SHORTS_READY_START_Enabled << RADIO_SHORTS_READY_START_Pos \|
wkleunen	1:66f95e364222	1037	RADIO_SHORTS_END_DISABLE_Enabled << RADIO_SHORTS_END_DISABLE_Pos;
wkleunen	1:66f95e364222	1038
wkleunen	1:66f95e364222	1039	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1040	}
wkleunen	1:66f95e364222	1041
wkleunen	1:66f95e364222	1042
wkleunen	1:66f95e364222	1043	bool nrf_esb_is_idle(void)
wkleunen	1:66f95e364222	1044	{
wkleunen	1:66f95e364222	1045	return m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	1046	}
wkleunen	1:66f95e364222	1047
wkleunen	1:66f95e364222	1048
wkleunen	1:66f95e364222	1049	void ESB_EVT_IRQHandler(void)
wkleunen	1:66f95e364222	1050	{
wkleunen	1:66f95e364222	1051	ret_code_t err_code;
wkleunen	1:66f95e364222	1052	uint32_t interrupts;
wkleunen	1:66f95e364222	1053	nrf_esb_evt_t event;
wkleunen	1:66f95e364222	1054
wkleunen	1:66f95e364222	1055	event.tx_attempts = m_last_tx_attempts;
wkleunen	1:66f95e364222	1056
wkleunen	1:66f95e364222	1057	err_code = nrf_esb_get_clear_interrupts(&interrupts);
wkleunen	1:66f95e364222	1058	if (err_code == NRF_SUCCESS && m_event_handler != 0)
wkleunen	1:66f95e364222	1059	{
wkleunen	1:66f95e364222	1060	if (interrupts & NRF_ESB_INT_TX_SUCCESS_MSK)
wkleunen	1:66f95e364222	1061	{
wkleunen	1:66f95e364222	1062	event.evt_id = NRF_ESB_EVENT_TX_SUCCESS;
wkleunen	1:66f95e364222	1063	m_event_handler(&event);
wkleunen	1:66f95e364222	1064	}
wkleunen	1:66f95e364222	1065	if (interrupts & NRF_ESB_INT_TX_FAILED_MSK)
wkleunen	1:66f95e364222	1066	{
wkleunen	1:66f95e364222	1067	event.evt_id = NRF_ESB_EVENT_TX_FAILED;
wkleunen	1:66f95e364222	1068	m_event_handler(&event);
wkleunen	1:66f95e364222	1069	}
wkleunen	1:66f95e364222	1070	if (interrupts & NRF_ESB_INT_RX_DATA_RECEIVED_MSK)
wkleunen	1:66f95e364222	1071	{
wkleunen	1:66f95e364222	1072	event.evt_id = NRF_ESB_EVENT_RX_RECEIVED;
wkleunen	1:66f95e364222	1073	m_event_handler(&event);
wkleunen	1:66f95e364222	1074	}
wkleunen	1:66f95e364222	1075	}
wkleunen	1:66f95e364222	1076	}
wkleunen	1:66f95e364222	1077
wkleunen	1:66f95e364222	1078	uint32_t nrf_esb_write_payload(nrf_esb_payload_t const * p_payload)
wkleunen	1:66f95e364222	1079	{
wkleunen	1:66f95e364222	1080	VERIFY_TRUE(m_esb_initialized, NRF_ERROR_INVALID_STATE);
wkleunen	1:66f95e364222	1081	VERIFY_PARAM_NOT_NULL(p_payload);
wkleunen	1:66f95e364222	1082	VERIFY_PAYLOAD_LENGTH(p_payload);
wkleunen	1:66f95e364222	1083	VERIFY_FALSE(m_tx_fifo.count >= NRF_ESB_TX_FIFO_SIZE, NRF_ERROR_NO_MEM);
wkleunen	1:66f95e364222	1084	VERIFY_TRUE(p_payload->pipe < NRF_ESB_PIPE_COUNT, NRF_ERROR_INVALID_PARAM);
wkleunen	1:66f95e364222	1085
wkleunen	1:66f95e364222	1086	DISABLE_RF_IRQ();
wkleunen	1:66f95e364222	1087
wkleunen	1:66f95e364222	1088	memcpy(m_tx_fifo.p_payload[m_tx_fifo.entry_point], p_payload, sizeof(nrf_esb_payload_t));
wkleunen	1:66f95e364222	1089
wkleunen	1:66f95e364222	1090	m_pids[p_payload->pipe] = (m_pids[p_payload->pipe] + 1) % (NRF_ESB_PID_MAX + 1);
wkleunen	1:66f95e364222	1091	m_tx_fifo.p_payload[m_tx_fifo.entry_point]->pid = m_pids[p_payload->pipe];
wkleunen	1:66f95e364222	1092
wkleunen	1:66f95e364222	1093	if (++m_tx_fifo.entry_point >= NRF_ESB_TX_FIFO_SIZE)
wkleunen	1:66f95e364222	1094	{
wkleunen	1:66f95e364222	1095	m_tx_fifo.entry_point = 0;
wkleunen	1:66f95e364222	1096	}
wkleunen	1:66f95e364222	1097
wkleunen	1:66f95e364222	1098	m_tx_fifo.count++;
wkleunen	1:66f95e364222	1099
wkleunen	1:66f95e364222	1100	ENABLE_RF_IRQ();
wkleunen	1:66f95e364222	1101
wkleunen	1:66f95e364222	1102
wkleunen	1:66f95e364222	1103	if (m_config_local.mode == NRF_ESB_MODE_PTX &&
wkleunen	1:66f95e364222	1104	m_config_local.tx_mode == NRF_ESB_TXMODE_AUTO &&
wkleunen	1:66f95e364222	1105	m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE)
wkleunen	1:66f95e364222	1106	{
wkleunen	1:66f95e364222	1107	start_tx_transaction();
wkleunen	1:66f95e364222	1108	}
wkleunen	1:66f95e364222	1109
wkleunen	1:66f95e364222	1110	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1111	}
wkleunen	1:66f95e364222	1112
wkleunen	1:66f95e364222	1113
wkleunen	1:66f95e364222	1114	uint32_t nrf_esb_read_rx_payload(nrf_esb_payload_t * p_payload)
wkleunen	1:66f95e364222	1115	{
wkleunen	1:66f95e364222	1116	VERIFY_TRUE(m_esb_initialized, NRF_ERROR_INVALID_STATE);
wkleunen	1:66f95e364222	1117	VERIFY_PARAM_NOT_NULL(p_payload);
wkleunen	1:66f95e364222	1118
wkleunen	1:66f95e364222	1119	if (m_rx_fifo.count == 0)
wkleunen	1:66f95e364222	1120	{
wkleunen	1:66f95e364222	1121	return NRF_ERROR_NOT_FOUND;
wkleunen	1:66f95e364222	1122	}
wkleunen	1:66f95e364222	1123
wkleunen	1:66f95e364222	1124	DISABLE_RF_IRQ();
wkleunen	1:66f95e364222	1125
wkleunen	1:66f95e364222	1126	p_payload->length = m_rx_fifo.p_payload[m_rx_fifo.exit_point]->length;
wkleunen	1:66f95e364222	1127	p_payload->pipe = m_rx_fifo.p_payload[m_rx_fifo.exit_point]->pipe;
wkleunen	1:66f95e364222	1128	p_payload->rssi = m_rx_fifo.p_payload[m_rx_fifo.exit_point]->rssi;
wkleunen	1:66f95e364222	1129	p_payload->pid = m_rx_fifo.p_payload[m_rx_fifo.exit_point]->pid;
wkleunen	1:66f95e364222	1130	p_payload->noack = m_rx_fifo.p_payload[m_rx_fifo.exit_point]->noack;
wkleunen	1:66f95e364222	1131	memcpy(p_payload->data, m_rx_fifo.p_payload[m_rx_fifo.exit_point]->data, p_payload->length);
wkleunen	1:66f95e364222	1132
wkleunen	1:66f95e364222	1133	if (++m_rx_fifo.exit_point >= NRF_ESB_RX_FIFO_SIZE)
wkleunen	1:66f95e364222	1134	{
wkleunen	1:66f95e364222	1135	m_rx_fifo.exit_point = 0;
wkleunen	1:66f95e364222	1136	}
wkleunen	1:66f95e364222	1137
wkleunen	1:66f95e364222	1138	m_rx_fifo.count--;
wkleunen	1:66f95e364222	1139
wkleunen	1:66f95e364222	1140	ENABLE_RF_IRQ();
wkleunen	1:66f95e364222	1141
wkleunen	1:66f95e364222	1142	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1143	}
wkleunen	1:66f95e364222	1144
wkleunen	1:66f95e364222	1145
wkleunen	1:66f95e364222	1146	uint32_t nrf_esb_start_tx(void)
wkleunen	1:66f95e364222	1147	{
wkleunen	1:66f95e364222	1148	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1149
wkleunen	1:66f95e364222	1150	if (m_tx_fifo.count == 0)
wkleunen	1:66f95e364222	1151	{
wkleunen	1:66f95e364222	1152	return NRF_ERROR_BUFFER_EMPTY;
wkleunen	1:66f95e364222	1153	}
wkleunen	1:66f95e364222	1154
wkleunen	1:66f95e364222	1155	start_tx_transaction();
wkleunen	1:66f95e364222	1156
wkleunen	1:66f95e364222	1157	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1158	}
wkleunen	1:66f95e364222	1159
wkleunen	1:66f95e364222	1160
wkleunen	1:66f95e364222	1161	uint32_t nrf_esb_start_rx(void)
wkleunen	1:66f95e364222	1162	{
wkleunen	1:66f95e364222	1163	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1164
wkleunen	1:66f95e364222	1165	NRF_RADIO->INTENCLR = 0xFFFFFFFF;
wkleunen	1:66f95e364222	1166	NRF_RADIO->EVENTS_DISABLED = 0;
wkleunen	1:66f95e364222	1167	on_radio_disabled = on_radio_disabled_rx;
wkleunen	1:66f95e364222	1168
wkleunen	1:66f95e364222	1169	NRF_RADIO->SHORTS = m_radio_shorts_common \| RADIO_SHORTS_DISABLED_TXEN_Msk;
wkleunen	1:66f95e364222	1170	NRF_RADIO->INTENSET = RADIO_INTENSET_DISABLED_Msk;
wkleunen	1:66f95e364222	1171	m_nrf_esb_mainstate = NRF_ESB_STATE_PRX;
wkleunen	1:66f95e364222	1172
wkleunen	1:66f95e364222	1173	NRF_RADIO->RXADDRESSES = m_esb_addr.rx_pipes_enabled;
wkleunen	1:66f95e364222	1174	NRF_RADIO->FREQUENCY = m_esb_addr.rf_channel;
wkleunen	1:66f95e364222	1175	NRF_RADIO->PACKETPTR = (uint32_t)m_rx_payload_buffer;
wkleunen	1:66f95e364222	1176
wkleunen	1:66f95e364222	1177	NVIC_ClearPendingIRQ(RADIO_IRQn);
wkleunen	1:66f95e364222	1178	NVIC_EnableIRQ(RADIO_IRQn);
wkleunen	1:66f95e364222	1179
wkleunen	1:66f95e364222	1180	NRF_RADIO->EVENTS_ADDRESS = 0;
wkleunen	1:66f95e364222	1181	NRF_RADIO->EVENTS_PAYLOAD = 0;
wkleunen	1:66f95e364222	1182	NRF_RADIO->EVENTS_DISABLED = 0;
wkleunen	1:66f95e364222	1183
wkleunen	1:66f95e364222	1184	NRF_RADIO->TASKS_RXEN = 1;
wkleunen	1:66f95e364222	1185
wkleunen	1:66f95e364222	1186	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1187	}
wkleunen	1:66f95e364222	1188
wkleunen	1:66f95e364222	1189
wkleunen	1:66f95e364222	1190	uint32_t nrf_esb_stop_rx(void)
wkleunen	1:66f95e364222	1191	{
wkleunen	1:66f95e364222	1192	if (m_nrf_esb_mainstate == NRF_ESB_STATE_PRX)
wkleunen	1:66f95e364222	1193	{
wkleunen	1:66f95e364222	1194	NRF_RADIO->SHORTS = 0;
wkleunen	1:66f95e364222	1195	NRF_RADIO->INTENCLR = 0xFFFFFFFF;
wkleunen	1:66f95e364222	1196	on_radio_disabled = NULL;
wkleunen	1:66f95e364222	1197	NRF_RADIO->EVENTS_DISABLED = 0;
wkleunen	1:66f95e364222	1198	NRF_RADIO->TASKS_DISABLE = 1;
wkleunen	1:66f95e364222	1199	while (NRF_RADIO->EVENTS_DISABLED == 0);
wkleunen	1:66f95e364222	1200	m_nrf_esb_mainstate = NRF_ESB_STATE_IDLE;
wkleunen	1:66f95e364222	1201
wkleunen	1:66f95e364222	1202	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1203	}
wkleunen	1:66f95e364222	1204
wkleunen	1:66f95e364222	1205	return NRF_ESB_ERROR_NOT_IN_RX_MODE;
wkleunen	1:66f95e364222	1206	}
wkleunen	1:66f95e364222	1207
wkleunen	1:66f95e364222	1208
wkleunen	1:66f95e364222	1209	uint32_t nrf_esb_flush_tx(void)
wkleunen	1:66f95e364222	1210	{
wkleunen	1:66f95e364222	1211	VERIFY_TRUE(m_esb_initialized, NRF_ERROR_INVALID_STATE);
wkleunen	1:66f95e364222	1212
wkleunen	1:66f95e364222	1213	DISABLE_RF_IRQ();
wkleunen	1:66f95e364222	1214
wkleunen	1:66f95e364222	1215	m_tx_fifo.count = 0;
wkleunen	1:66f95e364222	1216	m_tx_fifo.entry_point = 0;
wkleunen	1:66f95e364222	1217	m_tx_fifo.exit_point = 0;
wkleunen	1:66f95e364222	1218
wkleunen	1:66f95e364222	1219	ENABLE_RF_IRQ();
wkleunen	1:66f95e364222	1220
wkleunen	1:66f95e364222	1221	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1222	}
wkleunen	1:66f95e364222	1223
wkleunen	1:66f95e364222	1224
wkleunen	1:66f95e364222	1225	uint32_t nrf_esb_pop_tx(void)
wkleunen	1:66f95e364222	1226	{
wkleunen	1:66f95e364222	1227	VERIFY_TRUE(m_esb_initialized, NRF_ERROR_INVALID_STATE);
wkleunen	1:66f95e364222	1228	VERIFY_TRUE(m_tx_fifo.count > 0, NRF_ERROR_BUFFER_EMPTY);
wkleunen	1:66f95e364222	1229
wkleunen	1:66f95e364222	1230	DISABLE_RF_IRQ();
wkleunen	1:66f95e364222	1231
wkleunen	1:66f95e364222	1232	if (++m_tx_fifo.entry_point >= NRF_ESB_TX_FIFO_SIZE)
wkleunen	1:66f95e364222	1233	{
wkleunen	1:66f95e364222	1234	m_tx_fifo.entry_point = 0;
wkleunen	1:66f95e364222	1235	}
wkleunen	1:66f95e364222	1236	m_tx_fifo.count--;
wkleunen	1:66f95e364222	1237
wkleunen	1:66f95e364222	1238	ENABLE_RF_IRQ();
wkleunen	1:66f95e364222	1239
wkleunen	1:66f95e364222	1240	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1241	}
wkleunen	1:66f95e364222	1242
wkleunen	1:66f95e364222	1243
wkleunen	1:66f95e364222	1244	uint32_t nrf_esb_flush_rx(void)
wkleunen	1:66f95e364222	1245	{
wkleunen	1:66f95e364222	1246	VERIFY_TRUE(m_esb_initialized, NRF_ERROR_INVALID_STATE);
wkleunen	1:66f95e364222	1247
wkleunen	1:66f95e364222	1248	DISABLE_RF_IRQ();
wkleunen	1:66f95e364222	1249
wkleunen	1:66f95e364222	1250	m_rx_fifo.count = 0;
wkleunen	1:66f95e364222	1251	m_rx_fifo.entry_point = 0;
wkleunen	1:66f95e364222	1252	m_rx_fifo.exit_point = 0;
wkleunen	1:66f95e364222	1253
wkleunen	1:66f95e364222	1254	memset(m_rx_pipe_info, 0, sizeof(m_rx_pipe_info));
wkleunen	1:66f95e364222	1255
wkleunen	1:66f95e364222	1256	ENABLE_RF_IRQ();
wkleunen	1:66f95e364222	1257
wkleunen	1:66f95e364222	1258	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1259	}
wkleunen	1:66f95e364222	1260
wkleunen	1:66f95e364222	1261
wkleunen	1:66f95e364222	1262	uint32_t nrf_esb_set_address_length(uint8_t length)
wkleunen	1:66f95e364222	1263	{
wkleunen	1:66f95e364222	1264	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1265	VERIFY_TRUE(length > 2 && length < 6, NRF_ERROR_INVALID_PARAM);
wkleunen	1:66f95e364222	1266
wkleunen	1:66f95e364222	1267	/*
wkleunen	1:66f95e364222	1268	Workaround for nRF52832 Rev 1 Errata 107
wkleunen	1:66f95e364222	1269	Check if pipe 0 or pipe 1-7 has a 'zero address'.
wkleunen	1:66f95e364222	1270	Avoid using access addresses in the following pattern (where X is don't care):
wkleunen	1:66f95e364222	1271	ADDRLEN=5
wkleunen	1:66f95e364222	1272	BASE0 = 0x0000XXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1273	BASE1 = 0x0000XXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1274	BASE1 = 0x0000XXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1275	BASE1 = 0x0000XXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1276	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1277	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1278	BASE1 = 0x0000XXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1279	BASE1 = 0x0000XXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1280
wkleunen	1:66f95e364222	1281	ADDRLEN=4
wkleunen	1:66f95e364222	1282	BASE0 = 0x00XXXXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1283	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1284	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1285	BASE1 = 0x00XXXXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1286	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1287	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1288	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1289	BASE1 = 0x00XXXXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1290	*/
wkleunen	1:66f95e364222	1291	uint32_t base_address_mask = length == 5 ? 0xFFFF0000 : 0xFF000000;
wkleunen	1:66f95e364222	1292	if((NRF_RADIO->BASE0 & base_address_mask) == 0 && (NRF_RADIO->PREFIX0 & 0x000000FF) == 0)
wkleunen	1:66f95e364222	1293	{
wkleunen	1:66f95e364222	1294	return NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1295	}
wkleunen	1:66f95e364222	1296	if((NRF_RADIO->BASE1 & base_address_mask) == 0 && ((NRF_RADIO->PREFIX0 & 0x0000FF00) == 0 \|\|(NRF_RADIO->PREFIX0 & 0x00FF0000) == 0 \|\| (NRF_RADIO->PREFIX0 & 0xFF000000) == 0 \|\|
wkleunen	1:66f95e364222	1297	(NRF_RADIO->PREFIX1 & 0xFF000000) == 0 \|\| (NRF_RADIO->PREFIX1 & 0x00FF0000) == 0 \|\|(NRF_RADIO->PREFIX1 & 0x0000FF00) == 0 \|\| (NRF_RADIO->PREFIX1 & 0x000000FF) == 0))
wkleunen	1:66f95e364222	1298	{
wkleunen	1:66f95e364222	1299	return NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1300	}
wkleunen	1:66f95e364222	1301
wkleunen	1:66f95e364222	1302	m_esb_addr.addr_length = length;
wkleunen	1:66f95e364222	1303
wkleunen	1:66f95e364222	1304	update_rf_payload_format(m_config_local.payload_length);
wkleunen	1:66f95e364222	1305
wkleunen	1:66f95e364222	1306	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1307	}
wkleunen	1:66f95e364222	1308
wkleunen	1:66f95e364222	1309
wkleunen	1:66f95e364222	1310	uint32_t nrf_esb_set_base_address_0(uint8_t const * p_addr)
wkleunen	1:66f95e364222	1311	{
wkleunen	1:66f95e364222	1312	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1313	VERIFY_PARAM_NOT_NULL(p_addr);
wkleunen	1:66f95e364222	1314
wkleunen	1:66f95e364222	1315	/*
wkleunen	1:66f95e364222	1316	Workaround for nRF52832 Rev 1 Errata 107
wkleunen	1:66f95e364222	1317	Check if pipe 0 or pipe 1-7 has a 'zero address'.
wkleunen	1:66f95e364222	1318	Avoid using access addresses in the following pattern (where X is don't care):
wkleunen	1:66f95e364222	1319	ADDRLEN=5
wkleunen	1:66f95e364222	1320	BASE0 = 0x0000XXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1321	BASE1 = 0x0000XXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1322	BASE1 = 0x0000XXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1323	BASE1 = 0x0000XXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1324	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1325	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1326	BASE1 = 0x0000XXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1327	BASE1 = 0x0000XXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1328
wkleunen	1:66f95e364222	1329	ADDRLEN=4
wkleunen	1:66f95e364222	1330	BASE0 = 0x00XXXXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1331	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1332	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1333	BASE1 = 0x00XXXXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1334	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1335	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1336	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1337	BASE1 = 0x00XXXXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1338	*/
wkleunen	1:66f95e364222	1339	uint32_t base_address_mask = m_esb_addr.addr_length == 5 ? 0xFFFF0000 : 0xFF000000;
wkleunen	1:66f95e364222	1340	if((addr_conv(p_addr) & base_address_mask) == 0 && (NRF_RADIO->PREFIX0 & 0x000000FF) == 0)
wkleunen	1:66f95e364222	1341	{
wkleunen	1:66f95e364222	1342	return NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1343	}
wkleunen	1:66f95e364222	1344
wkleunen	1:66f95e364222	1345	memcpy(m_esb_addr.base_addr_p0, p_addr, 4);
wkleunen	1:66f95e364222	1346
wkleunen	1:66f95e364222	1347	update_radio_addresses(NRF_ESB_ADDR_UPDATE_MASK_BASE0);
wkleunen	1:66f95e364222	1348
wkleunen	1:66f95e364222	1349	return apply_address_workarounds();
wkleunen	1:66f95e364222	1350	}
wkleunen	1:66f95e364222	1351
wkleunen	1:66f95e364222	1352
wkleunen	1:66f95e364222	1353	uint32_t nrf_esb_set_base_address_1(uint8_t const * p_addr)
wkleunen	1:66f95e364222	1354	{
wkleunen	1:66f95e364222	1355	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1356	VERIFY_PARAM_NOT_NULL(p_addr);
wkleunen	1:66f95e364222	1357
wkleunen	1:66f95e364222	1358	/*
wkleunen	1:66f95e364222	1359	Workaround for nRF52832 Rev 1 Errata 107
wkleunen	1:66f95e364222	1360	Check if pipe 0 or pipe 1-7 has a 'zero address'.
wkleunen	1:66f95e364222	1361	Avoid using access addresses in the following pattern (where X is don't care):
wkleunen	1:66f95e364222	1362	ADDRLEN=5
wkleunen	1:66f95e364222	1363	BASE0 = 0x0000XXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1364	BASE1 = 0x0000XXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1365	BASE1 = 0x0000XXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1366	BASE1 = 0x0000XXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1367	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1368	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1369	BASE1 = 0x0000XXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1370	BASE1 = 0x0000XXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1371
wkleunen	1:66f95e364222	1372	ADDRLEN=4
wkleunen	1:66f95e364222	1373	BASE0 = 0x00XXXXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1374	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1375	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1376	BASE1 = 0x00XXXXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1377	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1378	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1379	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1380	BASE1 = 0x00XXXXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1381	*/
wkleunen	1:66f95e364222	1382	uint32_t base_address_mask = m_esb_addr.addr_length == 5 ? 0xFFFF0000 : 0xFF000000;
wkleunen	1:66f95e364222	1383	if((addr_conv(p_addr) & base_address_mask) == 0 && ((NRF_RADIO->PREFIX0 & 0x0000FF00) == 0 \|\|(NRF_RADIO->PREFIX0 & 0x00FF0000) == 0 \|\| (NRF_RADIO->PREFIX0 & 0xFF000000) == 0 \|\|
wkleunen	1:66f95e364222	1384	(NRF_RADIO->PREFIX1 & 0xFF000000) == 0 \|\| (NRF_RADIO->PREFIX1 & 0x00FF0000) == 0 \|\|(NRF_RADIO->PREFIX1 & 0x0000FF00) == 0 \|\| (NRF_RADIO->PREFIX1 & 0x000000FF) == 0))
wkleunen	1:66f95e364222	1385	{
wkleunen	1:66f95e364222	1386	return NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1387	}
wkleunen	1:66f95e364222	1388
wkleunen	1:66f95e364222	1389	memcpy(m_esb_addr.base_addr_p1, p_addr, 4);
wkleunen	1:66f95e364222	1390
wkleunen	1:66f95e364222	1391	update_radio_addresses(NRF_ESB_ADDR_UPDATE_MASK_BASE1);
wkleunen	1:66f95e364222	1392
wkleunen	1:66f95e364222	1393	return apply_address_workarounds();
wkleunen	1:66f95e364222	1394	}
wkleunen	1:66f95e364222	1395
wkleunen	1:66f95e364222	1396
wkleunen	1:66f95e364222	1397	uint32_t nrf_esb_set_prefixes(uint8_t const * p_prefixes, uint8_t num_pipes)
wkleunen	1:66f95e364222	1398	{
wkleunen	1:66f95e364222	1399	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1400	VERIFY_PARAM_NOT_NULL(p_prefixes);
wkleunen	1:66f95e364222	1401	VERIFY_TRUE(num_pipes < 9, NRF_ERROR_INVALID_PARAM);
wkleunen	1:66f95e364222	1402
wkleunen	1:66f95e364222	1403	/*
wkleunen	1:66f95e364222	1404	Workaround for nRF52832 Rev 1 Errata 107
wkleunen	1:66f95e364222	1405	Check if pipe 0 or pipe 1-7 has a 'zero address'.
wkleunen	1:66f95e364222	1406	Avoid using access addresses in the following pattern (where X is don't care):
wkleunen	1:66f95e364222	1407	ADDRLEN=5
wkleunen	1:66f95e364222	1408	BASE0 = 0x0000XXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1409	BASE1 = 0x0000XXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1410	BASE1 = 0x0000XXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1411	BASE1 = 0x0000XXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1412	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1413	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1414	BASE1 = 0x0000XXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1415	BASE1 = 0x0000XXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1416
wkleunen	1:66f95e364222	1417	ADDRLEN=4
wkleunen	1:66f95e364222	1418	BASE0 = 0x00XXXXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1419	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1420	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1421	BASE1 = 0x00XXXXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1422	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1423	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1424	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1425	BASE1 = 0x00XXXXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1426	*/
wkleunen	1:66f95e364222	1427	uint32_t base_address_mask = m_esb_addr.addr_length == 5 ? 0xFFFF0000 : 0xFF000000;
wkleunen	1:66f95e364222	1428	if(num_pipes >= 1 && (NRF_RADIO->BASE0 & base_address_mask) == 0 && p_prefixes[0] == 0)
wkleunen	1:66f95e364222	1429	{
wkleunen	1:66f95e364222	1430	return NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1431	}
wkleunen	1:66f95e364222	1432
wkleunen	1:66f95e364222	1433	if((NRF_RADIO->BASE1 & base_address_mask) == 0)
wkleunen	1:66f95e364222	1434	{
wkleunen	1:66f95e364222	1435	for (uint8_t i = 1; i < num_pipes; i++)
wkleunen	1:66f95e364222	1436	{
wkleunen	1:66f95e364222	1437	if (p_prefixes[i] == 0)
wkleunen	1:66f95e364222	1438	{
wkleunen	1:66f95e364222	1439	return NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1440	}
wkleunen	1:66f95e364222	1441	}
wkleunen	1:66f95e364222	1442	}
wkleunen	1:66f95e364222	1443
wkleunen	1:66f95e364222	1444	memcpy(m_esb_addr.pipe_prefixes, p_prefixes, num_pipes);
wkleunen	1:66f95e364222	1445	m_esb_addr.num_pipes = num_pipes;
wkleunen	1:66f95e364222	1446	m_esb_addr.rx_pipes_enabled = BIT_MASK_UINT_8(num_pipes);
wkleunen	1:66f95e364222	1447
wkleunen	1:66f95e364222	1448	update_radio_addresses(NRF_ESB_ADDR_UPDATE_MASK_PREFIX);
wkleunen	1:66f95e364222	1449
wkleunen	1:66f95e364222	1450	return apply_address_workarounds();
wkleunen	1:66f95e364222	1451	}
wkleunen	1:66f95e364222	1452
wkleunen	1:66f95e364222	1453
wkleunen	1:66f95e364222	1454	uint32_t nrf_esb_update_prefix(uint8_t pipe, uint8_t prefix)
wkleunen	1:66f95e364222	1455	{
wkleunen	1:66f95e364222	1456	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1457	VERIFY_TRUE(pipe < 8, NRF_ERROR_INVALID_PARAM);
wkleunen	1:66f95e364222	1458
wkleunen	1:66f95e364222	1459	/*
wkleunen	1:66f95e364222	1460	Workaround for nRF52832 Rev 1 Errata 107
wkleunen	1:66f95e364222	1461	Check if pipe 0 or pipe 1-7 has a 'zero address'.
wkleunen	1:66f95e364222	1462	Avoid using access addresses in the following pattern (where X is don't care):
wkleunen	1:66f95e364222	1463	ADDRLEN=5
wkleunen	1:66f95e364222	1464	BASE0 = 0x0000XXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1465	BASE1 = 0x0000XXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1466	BASE1 = 0x0000XXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1467	BASE1 = 0x0000XXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1468	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1469	BASE1 = 0x0000XXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1470	BASE1 = 0x0000XXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1471	BASE1 = 0x0000XXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1472
wkleunen	1:66f95e364222	1473	ADDRLEN=4
wkleunen	1:66f95e364222	1474	BASE0 = 0x00XXXXXX, PREFIX0 = 0xXXXXXX00
wkleunen	1:66f95e364222	1475	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXXXX00XX
wkleunen	1:66f95e364222	1476	BASE1 = 0x00XXXXXX, PREFIX0 = 0xXX00XXXX
wkleunen	1:66f95e364222	1477	BASE1 = 0x00XXXXXX, PREFIX0 = 0x00XXXXXX
wkleunen	1:66f95e364222	1478	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXXXX00
wkleunen	1:66f95e364222	1479	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXXXX00XX
wkleunen	1:66f95e364222	1480	BASE1 = 0x00XXXXXX, PREFIX1 = 0xXX00XXXX
wkleunen	1:66f95e364222	1481	BASE1 = 0x00XXXXXX, PREFIX1 = 0x00XXXXXX
wkleunen	1:66f95e364222	1482	*/
wkleunen	1:66f95e364222	1483	uint32_t base_address_mask = m_esb_addr.addr_length == 5 ? 0xFFFF0000 : 0xFF000000;
wkleunen	1:66f95e364222	1484	if (pipe == 0)
wkleunen	1:66f95e364222	1485	{
wkleunen	1:66f95e364222	1486	if((NRF_RADIO->BASE0 & base_address_mask) == 0 && prefix == 0)
wkleunen	1:66f95e364222	1487	{
wkleunen	1:66f95e364222	1488	return NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1489	}
wkleunen	1:66f95e364222	1490	}
wkleunen	1:66f95e364222	1491	else{
wkleunen	1:66f95e364222	1492	if((NRF_RADIO->BASE1 & base_address_mask) == 0 && prefix == 0)
wkleunen	1:66f95e364222	1493	{
wkleunen	1:66f95e364222	1494	return NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1495	}
wkleunen	1:66f95e364222	1496	}
wkleunen	1:66f95e364222	1497
wkleunen	1:66f95e364222	1498	m_esb_addr.pipe_prefixes[pipe] = prefix;
wkleunen	1:66f95e364222	1499
wkleunen	1:66f95e364222	1500	update_radio_addresses(NRF_ESB_ADDR_UPDATE_MASK_PREFIX);
wkleunen	1:66f95e364222	1501
wkleunen	1:66f95e364222	1502	return apply_address_workarounds();
wkleunen	1:66f95e364222	1503	}
wkleunen	1:66f95e364222	1504
wkleunen	1:66f95e364222	1505
wkleunen	1:66f95e364222	1506	uint32_t nrf_esb_enable_pipes(uint8_t enable_mask)
wkleunen	1:66f95e364222	1507	{
wkleunen	1:66f95e364222	1508	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1509
wkleunen	1:66f95e364222	1510	m_esb_addr.rx_pipes_enabled = enable_mask;
wkleunen	1:66f95e364222	1511
wkleunen	1:66f95e364222	1512	return apply_address_workarounds();
wkleunen	1:66f95e364222	1513	}
wkleunen	1:66f95e364222	1514
wkleunen	1:66f95e364222	1515
wkleunen	1:66f95e364222	1516	uint32_t nrf_esb_set_rf_channel(uint32_t channel)
wkleunen	1:66f95e364222	1517	{
wkleunen	1:66f95e364222	1518	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1519	VERIFY_TRUE(channel <= 100, NRF_ERROR_INVALID_PARAM);
wkleunen	1:66f95e364222	1520
wkleunen	1:66f95e364222	1521	m_esb_addr.rf_channel = channel;
wkleunen	1:66f95e364222	1522
wkleunen	1:66f95e364222	1523	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1524	}
wkleunen	1:66f95e364222	1525
wkleunen	1:66f95e364222	1526
wkleunen	1:66f95e364222	1527	uint32_t nrf_esb_get_rf_channel(uint32_t * p_channel)
wkleunen	1:66f95e364222	1528	{
wkleunen	1:66f95e364222	1529	VERIFY_PARAM_NOT_NULL(p_channel);
wkleunen	1:66f95e364222	1530
wkleunen	1:66f95e364222	1531	*p_channel = m_esb_addr.rf_channel;
wkleunen	1:66f95e364222	1532
wkleunen	1:66f95e364222	1533	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1534	}
wkleunen	1:66f95e364222	1535
wkleunen	1:66f95e364222	1536
wkleunen	1:66f95e364222	1537	uint32_t nrf_esb_set_tx_power(nrf_esb_tx_power_t tx_output_power)
wkleunen	1:66f95e364222	1538	{
wkleunen	1:66f95e364222	1539	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1540
wkleunen	1:66f95e364222	1541	if ( m_config_local.tx_output_power != tx_output_power )
wkleunen	1:66f95e364222	1542	{
wkleunen	1:66f95e364222	1543	m_config_local.tx_output_power = tx_output_power;
wkleunen	1:66f95e364222	1544	update_radio_tx_power();
wkleunen	1:66f95e364222	1545	}
wkleunen	1:66f95e364222	1546
wkleunen	1:66f95e364222	1547	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1548	}
wkleunen	1:66f95e364222	1549
wkleunen	1:66f95e364222	1550
wkleunen	1:66f95e364222	1551	uint32_t nrf_esb_set_retransmit_delay(uint16_t delay)
wkleunen	1:66f95e364222	1552	{
wkleunen	1:66f95e364222	1553	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1554	VERIFY_TRUE(delay >= NRF_ESB_RETRANSMIT_DELAY_MIN, NRF_ERROR_INVALID_PARAM);
wkleunen	1:66f95e364222	1555
wkleunen	1:66f95e364222	1556	m_config_local.retransmit_delay = delay;
wkleunen	1:66f95e364222	1557	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1558	}
wkleunen	1:66f95e364222	1559
wkleunen	1:66f95e364222	1560
wkleunen	1:66f95e364222	1561	uint32_t nrf_esb_set_retransmit_count(uint16_t count)
wkleunen	1:66f95e364222	1562	{
wkleunen	1:66f95e364222	1563	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1564
wkleunen	1:66f95e364222	1565	m_config_local.retransmit_count = count;
wkleunen	1:66f95e364222	1566	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1567	}
wkleunen	1:66f95e364222	1568
wkleunen	1:66f95e364222	1569
wkleunen	1:66f95e364222	1570	uint32_t nrf_esb_set_bitrate(nrf_esb_bitrate_t bitrate)
wkleunen	1:66f95e364222	1571	{
wkleunen	1:66f95e364222	1572	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1573
wkleunen	1:66f95e364222	1574	m_config_local.bitrate = bitrate;
wkleunen	1:66f95e364222	1575	return update_radio_bitrate() ? NRF_SUCCESS : NRF_ERROR_INVALID_PARAM;
wkleunen	1:66f95e364222	1576	}
wkleunen	1:66f95e364222	1577
wkleunen	1:66f95e364222	1578
wkleunen	1:66f95e364222	1579	uint32_t nrf_esb_reuse_pid(uint8_t pipe)
wkleunen	1:66f95e364222	1580	{
wkleunen	1:66f95e364222	1581	VERIFY_TRUE(m_nrf_esb_mainstate == NRF_ESB_STATE_IDLE, NRF_ERROR_BUSY);
wkleunen	1:66f95e364222	1582	VERIFY_TRUE(pipe < 8, NRF_ERROR_INVALID_PARAM);
wkleunen	1:66f95e364222	1583
wkleunen	1:66f95e364222	1584	m_pids[pipe] = (m_pids[pipe] + NRF_ESB_PID_MAX) % (NRF_ESB_PID_MAX + 1);
wkleunen	1:66f95e364222	1585	return NRF_SUCCESS;
wkleunen	1:66f95e364222	1586	}
wkleunen	1:66f95e364222	1587
wkleunen	1:66f95e364222	1588
wkleunen	1:66f95e364222	1589	// Handler for
wkleunen	1:66f95e364222	1590	#ifdef NRF52
wkleunen	1:66f95e364222	1591	void NRF_ESB_BUGFIX_TIMER_IRQHandler(void)
wkleunen	1:66f95e364222	1592	{
wkleunen	1:66f95e364222	1593	if(NRF_ESB_BUGFIX_TIMER->EVENTS_COMPARE[0])
wkleunen	1:66f95e364222	1594	{
wkleunen	1:66f95e364222	1595	NRF_ESB_BUGFIX_TIMER->EVENTS_COMPARE[0] = 0;
wkleunen	1:66f95e364222	1596
wkleunen	1:66f95e364222	1597	// If the timeout timer fires and we are in the PTX receive ACK state, disable the radio
wkleunen	1:66f95e364222	1598	if(m_nrf_esb_mainstate == NRF_ESB_STATE_PTX_RX_ACK)
wkleunen	1:66f95e364222	1599	{
wkleunen	1:66f95e364222	1600	NRF_RADIO->TASKS_DISABLE = 1;
wkleunen	1:66f95e364222	1601	}
wkleunen	1:66f95e364222	1602	}
wkleunen	1:66f95e364222	1603	}
wkleunen	1:66f95e364222	1604	#endif

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Type:	Program
Mbed OS support:	Mbed OS
Created:	04 Feb 2021
Imports:	2
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	0
Followers:	1

nrf_esb.c@1:66f95e364222, 2021-02-04 (annotated)

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