Lorenzo Invidia / target_st_bluenrg

Fork of ble-x-nucleo-idb0xa1 with changes required by BleStarMbed

Dependents:   ble-star-mbed

source/BlueNRGDevice.cpp@0:ac0b0725c6fa, 2018-02-20 (annotated)

Committer:
lorevee
Date:
Tue Feb 20 11:07:16 2018 +0000
Revision:
0:ac0b0725c6fa
Initial commit

Who changed what in which revision?

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lorevee 0:ac0b0725c6fa 1 /* mbed Microcontroller Library
lorevee 0:ac0b0725c6fa 2 * Copyright (c) 2006-2013 ARM Limited
lorevee 0:ac0b0725c6fa 3 *
lorevee 0:ac0b0725c6fa 4 * Licensed under the Apache License, Version 2.0 (the "License");
lorevee 0:ac0b0725c6fa 5 * you may not use this file except in compliance with the License.
lorevee 0:ac0b0725c6fa 6 * You may obtain a copy of the License at
lorevee 0:ac0b0725c6fa 7 *
lorevee 0:ac0b0725c6fa 8 * http://www.apache.org/licenses/LICENSE-2.0
lorevee 0:ac0b0725c6fa 9 *
lorevee 0:ac0b0725c6fa 10 * Unless required by applicable law or agreed to in writing, software
lorevee 0:ac0b0725c6fa 11 * distributed under the License is distributed on an "AS IS" BASIS,
lorevee 0:ac0b0725c6fa 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
lorevee 0:ac0b0725c6fa 13 * See the License for the specific language governing permissions and
lorevee 0:ac0b0725c6fa 14 * limitations under the License.
lorevee 0:ac0b0725c6fa 15 */
lorevee 0:ac0b0725c6fa 16
lorevee 0:ac0b0725c6fa 17 /**
lorevee 0:ac0b0725c6fa 18 ******************************************************************************
lorevee 0:ac0b0725c6fa 19 * @file BlueNRGDevice.cpp
lorevee 0:ac0b0725c6fa 20 * @author STMicroelectronics
lorevee 0:ac0b0725c6fa 21 * @brief Implementation of BLEDeviceInstanceBase
lorevee 0:ac0b0725c6fa 22 ******************************************************************************
lorevee 0:ac0b0725c6fa 23 * @copy
lorevee 0:ac0b0725c6fa 24 *
lorevee 0:ac0b0725c6fa 25 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
lorevee 0:ac0b0725c6fa 26 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
lorevee 0:ac0b0725c6fa 27 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
lorevee 0:ac0b0725c6fa 28 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
lorevee 0:ac0b0725c6fa 29 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
lorevee 0:ac0b0725c6fa 30 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
lorevee 0:ac0b0725c6fa 31 *
lorevee 0:ac0b0725c6fa 32 * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
lorevee 0:ac0b0725c6fa 33 */
lorevee 0:ac0b0725c6fa 34
lorevee 0:ac0b0725c6fa 35 /** @defgroup BlueNRGDevice
lorevee 0:ac0b0725c6fa 36 * @brief BlueNRG BLE_API Device Adaptation
lorevee 0:ac0b0725c6fa 37 * @{
lorevee 0:ac0b0725c6fa 38 */
lorevee 0:ac0b0725c6fa 39
lorevee 0:ac0b0725c6fa 40 #ifdef YOTTA_CFG_MBED_OS
lorevee 0:ac0b0725c6fa 41 #include "mbed-drivers/mbed.h"
lorevee 0:ac0b0725c6fa 42 #else
lorevee 0:ac0b0725c6fa 43 #include "mbed.h"
lorevee 0:ac0b0725c6fa 44 #endif
lorevee 0:ac0b0725c6fa 45 #include "BlueNRGDevice.h"
lorevee 0:ac0b0725c6fa 46 #include "BlueNRGGap.h"
lorevee 0:ac0b0725c6fa 47 #include "BlueNRGGattServer.h"
lorevee 0:ac0b0725c6fa 48
lorevee 0:ac0b0725c6fa 49 #include "btle.h"
lorevee 0:ac0b0725c6fa 50 #include "ble_utils.h"
lorevee 0:ac0b0725c6fa 51 #include "ble_osal.h"
lorevee 0:ac0b0725c6fa 52
lorevee 0:ac0b0725c6fa 53 #include "ble_debug.h"
lorevee 0:ac0b0725c6fa 54 #include "stm32_bluenrg_ble.h"
lorevee 0:ac0b0725c6fa 55
lorevee 0:ac0b0725c6fa 56 extern "C" {
lorevee 0:ac0b0725c6fa 57 #include "ble_hci.h"
lorevee 0:ac0b0725c6fa 58 #include "bluenrg_utils.h"
lorevee 0:ac0b0725c6fa 59 }
lorevee 0:ac0b0725c6fa 60
lorevee 0:ac0b0725c6fa 61 #define HEADER_SIZE 5
lorevee 0:ac0b0725c6fa 62 #define MAX_BUFFER_SIZE 255
lorevee 0:ac0b0725c6fa 63
lorevee 0:ac0b0725c6fa 64 /**
lorevee 0:ac0b0725c6fa 65 * The singleton which represents the BlueNRG transport for the BLEDevice.
lorevee 0:ac0b0725c6fa 66 *
lorevee 0:ac0b0725c6fa 67 * See file 'bluenrg_targets.h' for details regarding the peripheral pins used!
lorevee 0:ac0b0725c6fa 68 */
lorevee 0:ac0b0725c6fa 69 #include "bluenrg_targets.h"
lorevee 0:ac0b0725c6fa 70
lorevee 0:ac0b0725c6fa 71 BlueNRGDevice bluenrgDeviceInstance(BLUENRG_PIN_SPI_MOSI,
lorevee 0:ac0b0725c6fa 72 BLUENRG_PIN_SPI_MISO,
lorevee 0:ac0b0725c6fa 73 BLUENRG_PIN_SPI_SCK,
lorevee 0:ac0b0725c6fa 74 BLUENRG_PIN_SPI_nCS,
lorevee 0:ac0b0725c6fa 75 BLUENRG_PIN_SPI_RESET,
lorevee 0:ac0b0725c6fa 76 BLUENRG_PIN_SPI_IRQ);
lorevee 0:ac0b0725c6fa 77
lorevee 0:ac0b0725c6fa 78 /**
lorevee 0:ac0b0725c6fa 79 * BLE-API requires an implementation of the following function in order to
lorevee 0:ac0b0725c6fa 80 * obtain its transport handle.
lorevee 0:ac0b0725c6fa 81 */
lorevee 0:ac0b0725c6fa 82 BLEInstanceBase *
lorevee 0:ac0b0725c6fa 83 createBLEInstance(void)
lorevee 0:ac0b0725c6fa 84 {
lorevee 0:ac0b0725c6fa 85 return (&bluenrgDeviceInstance);
lorevee 0:ac0b0725c6fa 86 }
lorevee 0:ac0b0725c6fa 87
lorevee 0:ac0b0725c6fa 88 /**************************************************************************/
lorevee 0:ac0b0725c6fa 89 /**
lorevee 0:ac0b0725c6fa 90 @brief Constructor
lorevee 0:ac0b0725c6fa 91 * @param mosi mbed pin to use for MOSI line of SPI interface
lorevee 0:ac0b0725c6fa 92 * @param miso mbed pin to use for MISO line of SPI interface
lorevee 0:ac0b0725c6fa 93 * @param sck mbed pin to use for SCK line of SPI interface
lorevee 0:ac0b0725c6fa 94 * @param cs mbed pin to use for not chip select line of SPI interface
lorevee 0:ac0b0725c6fa 95 * @param rst mbed pin to use for BlueNRG reset
lorevee 0:ac0b0725c6fa 96 * @param irq mbed pin for BlueNRG IRQ
lorevee 0:ac0b0725c6fa 97 */
lorevee 0:ac0b0725c6fa 98 /**************************************************************************/
lorevee 0:ac0b0725c6fa 99 BlueNRGDevice::BlueNRGDevice(PinName mosi,
lorevee 0:ac0b0725c6fa 100 PinName miso,
lorevee 0:ac0b0725c6fa 101 PinName sck,
lorevee 0:ac0b0725c6fa 102 PinName cs,
lorevee 0:ac0b0725c6fa 103 PinName rst,
lorevee 0:ac0b0725c6fa 104 PinName irq) :
lorevee 0:ac0b0725c6fa 105 isInitialized(false), spi_(mosi, miso, sck), nCS_(cs), rst_(rst), irq_(irq)
lorevee 0:ac0b0725c6fa 106 {
lorevee 0:ac0b0725c6fa 107 // Setup the spi for 8 bit data, low clock polarity,
lorevee 0:ac0b0725c6fa 108 // 1-edge phase, with an 8MHz clock rate
lorevee 0:ac0b0725c6fa 109 spi_.format(8, 0);
lorevee 0:ac0b0725c6fa 110 spi_.frequency(8000000);
lorevee 0:ac0b0725c6fa 111
lorevee 0:ac0b0725c6fa 112 // Deselect the BlueNRG chip by keeping its nCS signal high
lorevee 0:ac0b0725c6fa 113 nCS_ = 1;
lorevee 0:ac0b0725c6fa 114
lorevee 0:ac0b0725c6fa 115 wait_us(500);
lorevee 0:ac0b0725c6fa 116
lorevee 0:ac0b0725c6fa 117 // Prepare communication between the host and the BlueNRG SPI interface
lorevee 0:ac0b0725c6fa 118 HCI_Init();
lorevee 0:ac0b0725c6fa 119
lorevee 0:ac0b0725c6fa 120 // Set the interrupt handler for the device
lorevee 0:ac0b0725c6fa 121 irq_.mode(PullDown); // set irq mode
lorevee 0:ac0b0725c6fa 122 irq_.rise(&HCI_Isr);
lorevee 0:ac0b0725c6fa 123 }
lorevee 0:ac0b0725c6fa 124
lorevee 0:ac0b0725c6fa 125 /**************************************************************************/
lorevee 0:ac0b0725c6fa 126 /**
lorevee 0:ac0b0725c6fa 127 @brief Destructor
lorevee 0:ac0b0725c6fa 128 */
lorevee 0:ac0b0725c6fa 129 /**************************************************************************/
lorevee 0:ac0b0725c6fa 130 BlueNRGDevice::~BlueNRGDevice(void)
lorevee 0:ac0b0725c6fa 131 {
lorevee 0:ac0b0725c6fa 132 }
lorevee 0:ac0b0725c6fa 133
lorevee 0:ac0b0725c6fa 134 /**
lorevee 0:ac0b0725c6fa 135 * @brief Get BlueNRG HW version in bootloader mode
lorevee 0:ac0b0725c6fa 136 * @param hw_version The HW version is written to this parameter
lorevee 0:ac0b0725c6fa 137 * @retval It returns BLE_STATUS_SUCCESS on success or an error code otherwise
lorevee 0:ac0b0725c6fa 138 */
lorevee 0:ac0b0725c6fa 139 uint8_t BlueNRGDevice::getUpdaterHardwareVersion(uint8_t *hw_version)
lorevee 0:ac0b0725c6fa 140 {
lorevee 0:ac0b0725c6fa 141 uint8_t status;
lorevee 0:ac0b0725c6fa 142
lorevee 0:ac0b0725c6fa 143 status = getBlueNRGUpdaterHWVersion(hw_version);
lorevee 0:ac0b0725c6fa 144
lorevee 0:ac0b0725c6fa 145 return (status);
lorevee 0:ac0b0725c6fa 146 }
lorevee 0:ac0b0725c6fa 147
lorevee 0:ac0b0725c6fa 148 /**
lorevee 0:ac0b0725c6fa 149 * @brief Flash a new firmware using internal bootloader.
lorevee 0:ac0b0725c6fa 150 * @param fw_image Pointer to the firmware image (raw binary data,
lorevee 0:ac0b0725c6fa 151 * little-endian).
lorevee 0:ac0b0725c6fa 152 * @param fw_size Size of the firmware image. The firmware image size shall
lorevee 0:ac0b0725c6fa 153 * be multiple of 4 bytes.
lorevee 0:ac0b0725c6fa 154 * @retval int It returns BLE_STATUS_SUCCESS on success, or a number
lorevee 0:ac0b0725c6fa 155 * not equal to 0 in case of error
lorevee 0:ac0b0725c6fa 156 * (ACI_ERROR, UNSUPPORTED_VERSION, WRONG_IMAGE_SIZE, CRC_ERROR)
lorevee 0:ac0b0725c6fa 157 */
lorevee 0:ac0b0725c6fa 158 int BlueNRGDevice::updateFirmware(const uint8_t *fw_image, uint32_t fw_size)
lorevee 0:ac0b0725c6fa 159 {
lorevee 0:ac0b0725c6fa 160 int status = program_device(fw_image, fw_size);
lorevee 0:ac0b0725c6fa 161
lorevee 0:ac0b0725c6fa 162 return (status);
lorevee 0:ac0b0725c6fa 163 }
lorevee 0:ac0b0725c6fa 164
lorevee 0:ac0b0725c6fa 165
lorevee 0:ac0b0725c6fa 166 /**
lorevee 0:ac0b0725c6fa 167 * @brief Initialises anything required to start using BLE
lorevee 0:ac0b0725c6fa 168 * @param[in] instanceID
lorevee 0:ac0b0725c6fa 169 * The ID of the instance to initialize.
lorevee 0:ac0b0725c6fa 170 * @param[in] callback
lorevee 0:ac0b0725c6fa 171 * A callback for when initialization completes for a BLE
lorevee 0:ac0b0725c6fa 172 * instance. This is an optional parameter set to NULL when not
lorevee 0:ac0b0725c6fa 173 * supplied.
lorevee 0:ac0b0725c6fa 174 *
lorevee 0:ac0b0725c6fa 175 * @return BLE_ERROR_NONE if the initialization procedure was started
lorevee 0:ac0b0725c6fa 176 * successfully.
lorevee 0:ac0b0725c6fa 177 */
lorevee 0:ac0b0725c6fa 178 ble_error_t BlueNRGDevice::init(BLE::InstanceID_t instanceID, FunctionPointerWithContext<BLE::InitializationCompleteCallbackContext *> callback)
lorevee 0:ac0b0725c6fa 179 {
lorevee 0:ac0b0725c6fa 180 if (isInitialized) {
lorevee 0:ac0b0725c6fa 181 BLE::InitializationCompleteCallbackContext context = {
lorevee 0:ac0b0725c6fa 182 BLE::Instance(instanceID),
lorevee 0:ac0b0725c6fa 183 BLE_ERROR_ALREADY_INITIALIZED
lorevee 0:ac0b0725c6fa 184 };
lorevee 0:ac0b0725c6fa 185 callback.call(&context);
lorevee 0:ac0b0725c6fa 186 return BLE_ERROR_ALREADY_INITIALIZED;
lorevee 0:ac0b0725c6fa 187 }
lorevee 0:ac0b0725c6fa 188
lorevee 0:ac0b0725c6fa 189 // Init the BlueNRG/BlueNRG-MS stack
lorevee 0:ac0b0725c6fa 190 btleInit();
lorevee 0:ac0b0725c6fa 191
lorevee 0:ac0b0725c6fa 192 isInitialized = true;
lorevee 0:ac0b0725c6fa 193 BLE::InitializationCompleteCallbackContext context = {
lorevee 0:ac0b0725c6fa 194 BLE::Instance(instanceID),
lorevee 0:ac0b0725c6fa 195 BLE_ERROR_NONE
lorevee 0:ac0b0725c6fa 196 };
lorevee 0:ac0b0725c6fa 197 callback.call(&context);
lorevee 0:ac0b0725c6fa 198
lorevee 0:ac0b0725c6fa 199 return BLE_ERROR_NONE;
lorevee 0:ac0b0725c6fa 200 }
lorevee 0:ac0b0725c6fa 201
lorevee 0:ac0b0725c6fa 202
lorevee 0:ac0b0725c6fa 203 /**
lorevee 0:ac0b0725c6fa 204 @brief Resets the BLE HW, removing any existing services and
lorevee 0:ac0b0725c6fa 205 characteristics
lorevee 0:ac0b0725c6fa 206 @param[in] void
lorevee 0:ac0b0725c6fa 207 @returns void
lorevee 0:ac0b0725c6fa 208 */
lorevee 0:ac0b0725c6fa 209 void BlueNRGDevice::reset(void)
lorevee 0:ac0b0725c6fa 210 {
lorevee 0:ac0b0725c6fa 211 /* Reset BlueNRG SPI interface. Hold reset line to 0 for 1500us */
lorevee 0:ac0b0725c6fa 212 rst_ = 0;
lorevee 0:ac0b0725c6fa 213 wait_us(1500);
lorevee 0:ac0b0725c6fa 214 rst_ = 1;
lorevee 0:ac0b0725c6fa 215
lorevee 0:ac0b0725c6fa 216 /* Wait for the radio to come back up */
lorevee 0:ac0b0725c6fa 217 wait_us(5000);
lorevee 0:ac0b0725c6fa 218 }
lorevee 0:ac0b0725c6fa 219
lorevee 0:ac0b0725c6fa 220 /*!
lorevee 0:ac0b0725c6fa 221 @brief Wait for any BLE Event like BLE Connection, Read Request etc.
lorevee 0:ac0b0725c6fa 222 @param[in] void
lorevee 0:ac0b0725c6fa 223 @returns char *
lorevee 0:ac0b0725c6fa 224 */
lorevee 0:ac0b0725c6fa 225 void BlueNRGDevice::waitForEvent(void)
lorevee 0:ac0b0725c6fa 226 {
lorevee 0:ac0b0725c6fa 227 bool must_return = false;
lorevee 0:ac0b0725c6fa 228
lorevee 0:ac0b0725c6fa 229 do {
lorevee 0:ac0b0725c6fa 230 bluenrgDeviceInstance.processEvents();
lorevee 0:ac0b0725c6fa 231
lorevee 0:ac0b0725c6fa 232 if(must_return) return;
lorevee 0:ac0b0725c6fa 233
lorevee 0:ac0b0725c6fa 234 __WFE(); /* it is recommended that SEVONPEND in the
lorevee 0:ac0b0725c6fa 235 System Control Register is NOT set */
lorevee 0:ac0b0725c6fa 236 must_return = true; /* after returning from WFE we must guarantee
lorevee 0:ac0b0725c6fa 237 that conrol is given back to main loop before next WFE */
lorevee 0:ac0b0725c6fa 238 } while(true);
lorevee 0:ac0b0725c6fa 239
lorevee 0:ac0b0725c6fa 240 }
lorevee 0:ac0b0725c6fa 241
lorevee 0:ac0b0725c6fa 242 /*!
lorevee 0:ac0b0725c6fa 243 @brief get GAP version
lorevee 0:ac0b0725c6fa 244 @brief Get the BLE stack version information
lorevee 0:ac0b0725c6fa 245 @param[in] void
lorevee 0:ac0b0725c6fa 246 @returns char *
lorevee 0:ac0b0725c6fa 247 @returns char *
lorevee 0:ac0b0725c6fa 248 */
lorevee 0:ac0b0725c6fa 249 const char *BlueNRGDevice::getVersion(void)
lorevee 0:ac0b0725c6fa 250 {
lorevee 0:ac0b0725c6fa 251 return getVersionString();
lorevee 0:ac0b0725c6fa 252 }
lorevee 0:ac0b0725c6fa 253
lorevee 0:ac0b0725c6fa 254 /**************************************************************************/
lorevee 0:ac0b0725c6fa 255 /*!
lorevee 0:ac0b0725c6fa 256 @brief get reference to GAP object
lorevee 0:ac0b0725c6fa 257 @param[in] void
lorevee 0:ac0b0725c6fa 258 @returns Gap&
lorevee 0:ac0b0725c6fa 259 */
lorevee 0:ac0b0725c6fa 260 /**************************************************************************/
lorevee 0:ac0b0725c6fa 261 Gap &BlueNRGDevice::getGap()
lorevee 0:ac0b0725c6fa 262 {
lorevee 0:ac0b0725c6fa 263 return BlueNRGGap::getInstance();
lorevee 0:ac0b0725c6fa 264 }
lorevee 0:ac0b0725c6fa 265
lorevee 0:ac0b0725c6fa 266 const Gap &BlueNRGDevice::getGap() const
lorevee 0:ac0b0725c6fa 267 {
lorevee 0:ac0b0725c6fa 268 return BlueNRGGap::getInstance();
lorevee 0:ac0b0725c6fa 269 }
lorevee 0:ac0b0725c6fa 270
lorevee 0:ac0b0725c6fa 271 /**************************************************************************/
lorevee 0:ac0b0725c6fa 272 /*!
lorevee 0:ac0b0725c6fa 273 @brief get reference to GATT server object
lorevee 0:ac0b0725c6fa 274 @param[in] void
lorevee 0:ac0b0725c6fa 275 @returns GattServer&
lorevee 0:ac0b0725c6fa 276 */
lorevee 0:ac0b0725c6fa 277 /**************************************************************************/
lorevee 0:ac0b0725c6fa 278 GattServer &BlueNRGDevice::getGattServer()
lorevee 0:ac0b0725c6fa 279 {
lorevee 0:ac0b0725c6fa 280 return BlueNRGGattServer::getInstance();
lorevee 0:ac0b0725c6fa 281 }
lorevee 0:ac0b0725c6fa 282
lorevee 0:ac0b0725c6fa 283 const GattServer &BlueNRGDevice::getGattServer() const
lorevee 0:ac0b0725c6fa 284 {
lorevee 0:ac0b0725c6fa 285 return BlueNRGGattServer::getInstance();
lorevee 0:ac0b0725c6fa 286 }
lorevee 0:ac0b0725c6fa 287
lorevee 0:ac0b0725c6fa 288 /**************************************************************************/
lorevee 0:ac0b0725c6fa 289 /*!
lorevee 0:ac0b0725c6fa 290 @brief shut down the BLE device
lorevee 0:ac0b0725c6fa 291 @param[out] error if any
lorevee 0:ac0b0725c6fa 292 */
lorevee 0:ac0b0725c6fa 293 /**************************************************************************/
lorevee 0:ac0b0725c6fa 294 ble_error_t BlueNRGDevice::shutdown(void) {
lorevee 0:ac0b0725c6fa 295 PRINTF("BlueNRGDevice::reset\n");
lorevee 0:ac0b0725c6fa 296
lorevee 0:ac0b0725c6fa 297 if (!isInitialized) {
lorevee 0:ac0b0725c6fa 298 return BLE_ERROR_INITIALIZATION_INCOMPLETE;
lorevee 0:ac0b0725c6fa 299 }
lorevee 0:ac0b0725c6fa 300
lorevee 0:ac0b0725c6fa 301 /* Reset the BlueNRG device first */
lorevee 0:ac0b0725c6fa 302 reset();
lorevee 0:ac0b0725c6fa 303
lorevee 0:ac0b0725c6fa 304 /* Shutdown the BLE API and BlueNRG glue code */
lorevee 0:ac0b0725c6fa 305 ble_error_t error;
lorevee 0:ac0b0725c6fa 306
lorevee 0:ac0b0725c6fa 307 /* GattServer instance */
lorevee 0:ac0b0725c6fa 308 error = BlueNRGGattServer::getInstance().reset();
lorevee 0:ac0b0725c6fa 309 if (error != BLE_ERROR_NONE) {
lorevee 0:ac0b0725c6fa 310 return error;
lorevee 0:ac0b0725c6fa 311 }
lorevee 0:ac0b0725c6fa 312
lorevee 0:ac0b0725c6fa 313 /* GattClient instance */
lorevee 0:ac0b0725c6fa 314 error = BlueNRGGattClient::getInstance().reset();
lorevee 0:ac0b0725c6fa 315 if (error != BLE_ERROR_NONE) {
lorevee 0:ac0b0725c6fa 316 return error;
lorevee 0:ac0b0725c6fa 317 }
lorevee 0:ac0b0725c6fa 318
lorevee 0:ac0b0725c6fa 319 /* Gap instance */
lorevee 0:ac0b0725c6fa 320 error = BlueNRGGap::getInstance().reset();
lorevee 0:ac0b0725c6fa 321 if (error != BLE_ERROR_NONE) {
lorevee 0:ac0b0725c6fa 322 return error;
lorevee 0:ac0b0725c6fa 323 }
lorevee 0:ac0b0725c6fa 324
lorevee 0:ac0b0725c6fa 325 isInitialized = false;
lorevee 0:ac0b0725c6fa 326
lorevee 0:ac0b0725c6fa 327 PRINTF("BlueNRGDevice::reset complete\n");
lorevee 0:ac0b0725c6fa 328 return BLE_ERROR_NONE;
lorevee 0:ac0b0725c6fa 329
lorevee 0:ac0b0725c6fa 330 }
lorevee 0:ac0b0725c6fa 331
lorevee 0:ac0b0725c6fa 332 /**
lorevee 0:ac0b0725c6fa 333 * @brief Reads from BlueNRG SPI buffer and store data into local buffer.
lorevee 0:ac0b0725c6fa 334 * @param buffer : Buffer where data from SPI are stored
lorevee 0:ac0b0725c6fa 335 * @param buff_size: Buffer size
lorevee 0:ac0b0725c6fa 336 * @retval int32_t : Number of read bytes
lorevee 0:ac0b0725c6fa 337 */
lorevee 0:ac0b0725c6fa 338 int32_t BlueNRGDevice::spiRead(uint8_t *buffer, uint8_t buff_size)
lorevee 0:ac0b0725c6fa 339 {
lorevee 0:ac0b0725c6fa 340 uint16_t byte_count;
lorevee 0:ac0b0725c6fa 341 uint8_t len = 0;
lorevee 0:ac0b0725c6fa 342 uint8_t char_ff = 0xff;
lorevee 0:ac0b0725c6fa 343 volatile uint8_t read_char;
lorevee 0:ac0b0725c6fa 344
lorevee 0:ac0b0725c6fa 345 uint8_t i = 0;
lorevee 0:ac0b0725c6fa 346 volatile uint8_t tmpreg;
lorevee 0:ac0b0725c6fa 347
lorevee 0:ac0b0725c6fa 348 uint8_t header_master[HEADER_SIZE] = {0x0b, 0x00, 0x00, 0x00, 0x00};
lorevee 0:ac0b0725c6fa 349 uint8_t header_slave[HEADER_SIZE];
lorevee 0:ac0b0725c6fa 350
lorevee 0:ac0b0725c6fa 351 /* Select the chip */
lorevee 0:ac0b0725c6fa 352 nCS_ = 0;
lorevee 0:ac0b0725c6fa 353
lorevee 0:ac0b0725c6fa 354 /* Read the header */
lorevee 0:ac0b0725c6fa 355 for (i = 0; i < 5; i++)
lorevee 0:ac0b0725c6fa 356 {
lorevee 0:ac0b0725c6fa 357 tmpreg = spi_.write(header_master[i]);
lorevee 0:ac0b0725c6fa 358 header_slave[i] = (uint8_t)(tmpreg);
lorevee 0:ac0b0725c6fa 359 }
lorevee 0:ac0b0725c6fa 360
lorevee 0:ac0b0725c6fa 361 if (header_slave[0] == 0x02) {
lorevee 0:ac0b0725c6fa 362 /* device is ready */
lorevee 0:ac0b0725c6fa 363 byte_count = (header_slave[4]<<8)|header_slave[3];
lorevee 0:ac0b0725c6fa 364
lorevee 0:ac0b0725c6fa 365 if (byte_count > 0) {
lorevee 0:ac0b0725c6fa 366
lorevee 0:ac0b0725c6fa 367 /* avoid to read more data that size of the buffer */
lorevee 0:ac0b0725c6fa 368 if (byte_count > buff_size){
lorevee 0:ac0b0725c6fa 369 byte_count = buff_size;
lorevee 0:ac0b0725c6fa 370 }
lorevee 0:ac0b0725c6fa 371
lorevee 0:ac0b0725c6fa 372 for (len = 0; len < byte_count; len++){
lorevee 0:ac0b0725c6fa 373 read_char = spi_.write(char_ff);
lorevee 0:ac0b0725c6fa 374 buffer[len] = read_char;
lorevee 0:ac0b0725c6fa 375 }
lorevee 0:ac0b0725c6fa 376 }
lorevee 0:ac0b0725c6fa 377 }
lorevee 0:ac0b0725c6fa 378 /* Release CS line to deselect the chip */
lorevee 0:ac0b0725c6fa 379 nCS_ = 1;
lorevee 0:ac0b0725c6fa 380
lorevee 0:ac0b0725c6fa 381 // Add a small delay to give time to the BlueNRG to set the IRQ pin low
lorevee 0:ac0b0725c6fa 382 // to avoid a useless SPI read at the end of the transaction
lorevee 0:ac0b0725c6fa 383 for(volatile int i = 0; i < 2; i++)__NOP();
lorevee 0:ac0b0725c6fa 384
lorevee 0:ac0b0725c6fa 385 #ifdef PRINT_CSV_FORMAT
lorevee 0:ac0b0725c6fa 386 if (len > 0) {
lorevee 0:ac0b0725c6fa 387 print_csv_time();
lorevee 0:ac0b0725c6fa 388 for (int i=0; i<len; i++) {
lorevee 0:ac0b0725c6fa 389 PRINT_CSV(" %02x", buffer[i]);
lorevee 0:ac0b0725c6fa 390 }
lorevee 0:ac0b0725c6fa 391 PRINT_CSV("\n");
lorevee 0:ac0b0725c6fa 392 }
lorevee 0:ac0b0725c6fa 393 #endif
lorevee 0:ac0b0725c6fa 394
lorevee 0:ac0b0725c6fa 395 return len;
lorevee 0:ac0b0725c6fa 396 }
lorevee 0:ac0b0725c6fa 397
lorevee 0:ac0b0725c6fa 398 /**
lorevee 0:ac0b0725c6fa 399 * @brief Writes data from local buffer to SPI.
lorevee 0:ac0b0725c6fa 400 * @param data1 : First data buffer to be written
lorevee 0:ac0b0725c6fa 401 * @param data2 : Second data buffer to be written
lorevee 0:ac0b0725c6fa 402 * @param Nb_bytes1: Size of first data buffer to be written
lorevee 0:ac0b0725c6fa 403 * @param Nb_bytes2: Size of second data buffer to be written
lorevee 0:ac0b0725c6fa 404 * @retval Number of read bytes
lorevee 0:ac0b0725c6fa 405 */
lorevee 0:ac0b0725c6fa 406 int32_t BlueNRGDevice::spiWrite(uint8_t* data1,
lorevee 0:ac0b0725c6fa 407 uint8_t* data2, uint8_t Nb_bytes1, uint8_t Nb_bytes2)
lorevee 0:ac0b0725c6fa 408 {
lorevee 0:ac0b0725c6fa 409 int32_t result = 0;
lorevee 0:ac0b0725c6fa 410 uint32_t i;
lorevee 0:ac0b0725c6fa 411 volatile uint8_t tmpreg;
lorevee 0:ac0b0725c6fa 412
lorevee 0:ac0b0725c6fa 413 unsigned char header_master[HEADER_SIZE] = {0x0a, 0x00, 0x00, 0x00, 0x00};
lorevee 0:ac0b0725c6fa 414 unsigned char header_slave[HEADER_SIZE] = {0xaa, 0x00, 0x00, 0x00, 0x00};
lorevee 0:ac0b0725c6fa 415
lorevee 0:ac0b0725c6fa 416 disable_irq();
lorevee 0:ac0b0725c6fa 417
lorevee 0:ac0b0725c6fa 418 /* CS reset */
lorevee 0:ac0b0725c6fa 419 nCS_ = 0;
lorevee 0:ac0b0725c6fa 420
lorevee 0:ac0b0725c6fa 421 /* Exchange header */
lorevee 0:ac0b0725c6fa 422 for (i = 0; i < 5; i++)
lorevee 0:ac0b0725c6fa 423 {
lorevee 0:ac0b0725c6fa 424 tmpreg = spi_.write(header_master[i]);
lorevee 0:ac0b0725c6fa 425 header_slave[i] = tmpreg;
lorevee 0:ac0b0725c6fa 426 }
lorevee 0:ac0b0725c6fa 427
lorevee 0:ac0b0725c6fa 428 if (header_slave[0] == 0x02) {
lorevee 0:ac0b0725c6fa 429 /* SPI is ready */
lorevee 0:ac0b0725c6fa 430 if (header_slave[1] >= (Nb_bytes1+Nb_bytes2)) {
lorevee 0:ac0b0725c6fa 431
lorevee 0:ac0b0725c6fa 432 /* Buffer is big enough */
lorevee 0:ac0b0725c6fa 433 for (i = 0; i < Nb_bytes1; i++) {
lorevee 0:ac0b0725c6fa 434 spi_.write(*(data1 + i));
lorevee 0:ac0b0725c6fa 435 }
lorevee 0:ac0b0725c6fa 436 for (i = 0; i < Nb_bytes2; i++) {
lorevee 0:ac0b0725c6fa 437 spi_.write(*(data2 + i));
lorevee 0:ac0b0725c6fa 438 }
lorevee 0:ac0b0725c6fa 439 } else {
lorevee 0:ac0b0725c6fa 440 /* Buffer is too small */
lorevee 0:ac0b0725c6fa 441 result = -2;
lorevee 0:ac0b0725c6fa 442 }
lorevee 0:ac0b0725c6fa 443 } else {
lorevee 0:ac0b0725c6fa 444 /* SPI is not ready */
lorevee 0:ac0b0725c6fa 445 result = -1;
lorevee 0:ac0b0725c6fa 446 }
lorevee 0:ac0b0725c6fa 447
lorevee 0:ac0b0725c6fa 448 /* Release CS line */
lorevee 0:ac0b0725c6fa 449 //HAL_GPIO_WritePin(BNRG_SPI_CS_PORT, BNRG_SPI_CS_PIN, GPIO_PIN_SET);
lorevee 0:ac0b0725c6fa 450 nCS_ = 1;
lorevee 0:ac0b0725c6fa 451
lorevee 0:ac0b0725c6fa 452 enable_irq();
lorevee 0:ac0b0725c6fa 453
lorevee 0:ac0b0725c6fa 454 return result;
lorevee 0:ac0b0725c6fa 455 }
lorevee 0:ac0b0725c6fa 456
lorevee 0:ac0b0725c6fa 457 bool BlueNRGDevice::dataPresent()
lorevee 0:ac0b0725c6fa 458 {
lorevee 0:ac0b0725c6fa 459 return (irq_ == 1);
lorevee 0:ac0b0725c6fa 460 }
lorevee 0:ac0b0725c6fa 461
lorevee 0:ac0b0725c6fa 462 void BlueNRGDevice::disable_irq()
lorevee 0:ac0b0725c6fa 463 {
lorevee 0:ac0b0725c6fa 464 irq_.disable_irq();
lorevee 0:ac0b0725c6fa 465 }
lorevee 0:ac0b0725c6fa 466
lorevee 0:ac0b0725c6fa 467 void BlueNRGDevice::enable_irq()
lorevee 0:ac0b0725c6fa 468 {
lorevee 0:ac0b0725c6fa 469 irq_.enable_irq();
lorevee 0:ac0b0725c6fa 470 }
lorevee 0:ac0b0725c6fa 471
lorevee 0:ac0b0725c6fa 472 void BlueNRGDevice::processEvents() {
lorevee 0:ac0b0725c6fa 473 btle_handler();
lorevee 0:ac0b0725c6fa 474 }