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/**
******************************************************************************
* File Name : ble_hal.c
* Description : BLE HAL based on LLD
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
*/
/**
* This file provides functions for a simpler access to radio than LLD.
* It relies on the LLD API running on application MCU, and so does not depend
* on an HAL API provided by radio MCU.
*/
/* Includes ------------------------------------------------------------------*/
#include "stdint.h"
#include "stdbool.h"
#include "ble_lld.h"
#include "ble_hal.h"
/* Private includes ----------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
#define WAKEUP_TIME_US 1000
/* Private macros ------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
static ActionPacket actPack[ACTION_PACKET_NB];
/* Functions Definition ------------------------------------------------------*/
/**
* @brief Initializes the radio
*
* Before actual use, radio must be configured with HAL_BLE_LLD_Configure().
* This function enables whitening.
*
* @param[in] hsStartupTime Startup time (system time unit)
* @param[in] lsOscInternal Use internal RO for the 32 kHz slow speed clock
* (else external crystal)
*/
uint8_t HAL_BLE_LLD_Init(uint16_t hsStartupTime, bool lsOscInternal)
{
BLE_LLD_Init(hsStartupTime, lsOscInternal, ENABLE);
return SUCCESS_0;
}
/**
* @brief Configures the radio
*
* @param[in] txPower Transmit power for outgoing packets
* @param[in] channel Radio channel
* @param[in] phy2mbps Use 2Mb/s PHY speed (else 1Mb/s)
* @param[in] b2bTimeUs Back to back time (us), delay between packet and ACK
* @param[in] networkId Network ID (access address)
*/
uint8_t HAL_BLE_LLD_Configure(txPower_t txPower,
uint8_t channel,
bool phy2mbps,
uint32_t b2bTimeUs,
uint32_t networkId)
{
BLE_LLD_SetTxPower(txPower);
BLE_LLD_SetChannel(STATE_MACHINE_0, channel);
BLE_LLD_SetTx_Rx_Phy(STATE_MACHINE_0,
phy2mbps ? TX_PHY_2MBPS : TX_PHY_1MBPS,
phy2mbps ? RX_PHY_2MBPS : RX_PHY_1MBPS);
BLE_LLD_SetBackToBackTime(b2bTimeUs);
BLE_LLD_SetTxAttributes(STATE_MACHINE_0, networkId);
return SUCCESS_0;
}
/**
* @brief Sends one packet without listening for an acknowledge.
*
* @param[in] txBuffer Data to transmit (header+length+payload)
* @param[in] callback Function that will be called once radio operation is done
*
* @retval SUCCESS_0 if success
* @retval INVALID_PARAMETER_C0 if invalid parameters
* @retval RADIO_BUSY_C4 if radio is busy
*/
uint8_t HAL_BLE_LLD_SendPacket(void *txBuffer,
uint8_t size,
lldCallback_t *callback)
{
ActionPacket *ap;
// Packet to send
ap = &actPack[APACKET_0];
ap->actionPacketNb = APACKET_0;
ap->StateMachineNo = STATE_MACHINE_0;
ap->ActionTag = TXRX | TIMER_WAKEUP;
ap->WakeupTime = WAKEUP_TIME_US;
ap->data = txBuffer;
ap->dataSize = size;
ap->nextTrue = APACKET_STOP;
ap->nextFalse = APACKET_STOP;
ap->callback = callback;
BLE_LLD_SetReservedArea(ap);
BLE_LLD_MakeActionPacketPending(ap);
return SUCCESS_0;
}
/**
* @brief Sends one packet and listen for an acknowledge.
*
* @param[in] txBuffer Data to transmit (header+length+payload)
* @param[in] receiveTimeout Timeout for ACK reception (us)
* @param[in] callback Function that will be called once radio operation is done
*
* @retval SUCCESS_0 if success
* @retval INVALID_PARAMETER_C0 if invalid parameters
* @retval RADIO_BUSY_C4 if radio is busy
*/
uint8_t HAL_BLE_LLD_SendPacketWithAck(void *txBuffer,
uint8_t size,
uint32_t receiveTimeout,
lldCallback_t *callback)
{
ActionPacket *ap;
// Packet to send
ap = &actPack[APACKET_0];
ap->actionPacketNb = APACKET_0;
ap->StateMachineNo = STATE_MACHINE_0;
ap->ActionTag = TXRX | TIMER_WAKEUP;
ap->WakeupTime = WAKEUP_TIME_US;
ap->data = txBuffer;
ap->dataSize = size;
ap->nextTrue = APACKET_1;
ap->nextFalse = APACKET_STOP;
ap->callback = callback;
BLE_LLD_SetReservedArea(ap);
// ACK to receive
ap = &actPack[APACKET_1];
ap->actionPacketNb = APACKET_1;
ap->StateMachineNo = STATE_MACHINE_0;
ap->ActionTag = 0;
ap->ReceiveWindowLength = receiveTimeout;
ap->nextTrue = APACKET_STOP;
ap->nextFalse = APACKET_STOP;
ap->callback = callback;
BLE_LLD_SetReservedArea(ap);
BLE_LLD_MakeActionPacketPending(&actPack[APACKET_0]);
return SUCCESS_0;
}
/**
* @brief Receives one packet without transmitting an acknowledge.
*
* @param[in] receiveTimeout Timeout for data reception (us)
* @param[in] callback Function that will be called once radio operation is done
*
* @retval SUCCESS_0 if success
* @retval INVALID_PARAMETER_C0 if invalid parameters
* @retval RADIO_BUSY_C4 if radio is busy
*/
uint8_t HAL_BLE_LLD_ReceivePacket(uint32_t receiveTimeout,
lldCallback_t *callback)
{
ActionPacket *ap;
// Packet to receive
ap = &actPack[APACKET_2];
ap->actionPacketNb = APACKET_2;
ap->StateMachineNo = STATE_MACHINE_0;
ap->ActionTag = TIMER_WAKEUP;
ap->WakeupTime = WAKEUP_TIME_US;
ap->ReceiveWindowLength = receiveTimeout;
ap->nextTrue = APACKET_STOP;
ap->nextFalse = APACKET_STOP;
ap->callback = callback;
BLE_LLD_SetReservedArea(ap);
BLE_LLD_MakeActionPacketPending(ap);
return SUCCESS_0;
}
/**
* @brief Receives one packet and transmit an acknowledge.
*
* @param[in] txBuffer Acknowledge to transmit
* @param[in] receiveTimeout Timeout for data reception (us)
* @param[in] callback Function that will be called once radio operation is done
*
* @retval SUCCESS_0 if success
* @retval INVALID_PARAMETER_C0 if invalid parameters
* @retval RADIO_BUSY_C4 if radio is busy
*/
uint8_t HAL_BLE_LLD_ReceivePacketWithAck(void *txBuffer,
uint8_t size,
uint32_t receiveTimeout,
lldCallback_t *callback)
{
ActionPacket *ap;
// Packet to receive
ap = &actPack[APACKET_2];
ap->actionPacketNb = APACKET_2;
ap->StateMachineNo = STATE_MACHINE_0;
ap->ActionTag = TIMER_WAKEUP;
ap->WakeupTime = WAKEUP_TIME_US;
ap->ReceiveWindowLength = receiveTimeout;
ap->nextTrue = APACKET_3;
ap->nextFalse = APACKET_STOP;
ap->callback = callback;
BLE_LLD_SetReservedArea(ap);
// ACK to send
ap = &actPack[APACKET_3];
ap->actionPacketNb = APACKET_3;
ap->StateMachineNo = STATE_MACHINE_0;
ap->ActionTag = TXRX;
ap->data = txBuffer;
ap->dataSize = size;
ap->nextTrue = APACKET_STOP;
ap->nextFalse = APACKET_STOP;
ap->callback = callback;
BLE_LLD_SetReservedArea(ap);
BLE_LLD_MakeActionPacketPending(&actPack[APACKET_2]);
return SUCCESS_0;
}
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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