Antonio Vilei / X_NUCLEO_IDB0XA1

BLE_API wrapper library for STMicroelectronics' BlueNRG Bluetooth Low Energy expansion board shield

Fork of X_NUCLEO_IDB0XA1 by ST Expansion SW Team

source/BlueNRGDevice.cpp@232:f2a7da5d24e1, 2016-06-17 (annotated)

Committer:
avilei
Date:
Fri Jun 17 16:07:05 2016 +0000
Revision:
232:f2a7da5d24e1
Parent:
231:b94d080127c7 
Add firmware update capabilities

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wolfgang Betz 130:770ce14d3d15 1 /* mbed Microcontroller Library
Wolfgang Betz 130:770ce14d3d15 2 * Copyright (c) 2006-2013 ARM Limited
Wolfgang Betz 130:770ce14d3d15 3 *
Wolfgang Betz 130:770ce14d3d15 4 * Licensed under the Apache License, Version 2.0 (the "License");
Wolfgang Betz 130:770ce14d3d15 5 * you may not use this file except in compliance with the License.
Wolfgang Betz 130:770ce14d3d15 6 * You may obtain a copy of the License at
Wolfgang Betz 130:770ce14d3d15 7 *
Wolfgang Betz 130:770ce14d3d15 8 * http://www.apache.org/licenses/LICENSE-2.0
Wolfgang Betz 130:770ce14d3d15 9 *
Wolfgang Betz 130:770ce14d3d15 10 * Unless required by applicable law or agreed to in writing, software
Wolfgang Betz 130:770ce14d3d15 11 * distributed under the License is distributed on an "AS IS" BASIS,
Wolfgang Betz 130:770ce14d3d15 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Wolfgang Betz 130:770ce14d3d15 13 * See the License for the specific language governing permissions and
Wolfgang Betz 130:770ce14d3d15 14 * limitations under the License.
Wolfgang Betz 130:770ce14d3d15 15 */
Wolfgang Betz 130:770ce14d3d15 16
Wolfgang Betz 130:770ce14d3d15 17 /**
Wolfgang Betz 130:770ce14d3d15 18 ******************************************************************************
Wolfgang Betz 130:770ce14d3d15 19 * @file BlueNRGDevice.cpp
Wolfgang Betz 130:770ce14d3d15 20 * @author STMicroelectronics
Wolfgang Betz 130:770ce14d3d15 21 * @brief Implementation of BLEDeviceInstanceBase
Wolfgang Betz 130:770ce14d3d15 22 ******************************************************************************
Wolfgang Betz 130:770ce14d3d15 23 * @copy
Wolfgang Betz 130:770ce14d3d15 24 *
Wolfgang Betz 130:770ce14d3d15 25 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
Wolfgang Betz 130:770ce14d3d15 26 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
Wolfgang Betz 130:770ce14d3d15 27 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
Wolfgang Betz 130:770ce14d3d15 28 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
Wolfgang Betz 130:770ce14d3d15 29 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
Wolfgang Betz 130:770ce14d3d15 30 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
Wolfgang Betz 130:770ce14d3d15 31 *
Wolfgang Betz 130:770ce14d3d15 32 * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
Wolfgang Betz 130:770ce14d3d15 33 */
Wolfgang Betz 130:770ce14d3d15 34
Wolfgang Betz 130:770ce14d3d15 35 /** @defgroup BlueNRGDevice
Wolfgang Betz 130:770ce14d3d15 36 * @brief BlueNRG BLE_API Device Adaptation
Wolfgang Betz 130:770ce14d3d15 37 * @{
Wolfgang Betz 130:770ce14d3d15 38 */
Wolfgang Betz 130:770ce14d3d15 39
apalmieri 231:b94d080127c7 40 #include "mbed.h"
Wolfgang Betz 130:770ce14d3d15 41 #include "BlueNRGDevice.h"
Wolfgang Betz 130:770ce14d3d15 42 #include "BlueNRGGap.h"
Wolfgang Betz 130:770ce14d3d15 43 #include "BlueNRGGattServer.h"
Wolfgang Betz 130:770ce14d3d15 44
Wolfgang Betz 130:770ce14d3d15 45 #include "btle.h"
Wolfgang Betz 130:770ce14d3d15 46 #include "Utils.h"
Wolfgang Betz 130:770ce14d3d15 47 #include "osal.h"
Wolfgang Betz 130:770ce14d3d15 48
Wolfgang Betz 130:770ce14d3d15 49 #include "debug.h"
Wolfgang Betz 130:770ce14d3d15 50 #include "stm32_bluenrg_ble.h"
Wolfgang Betz 130:770ce14d3d15 51
Wolfgang Betz 130:770ce14d3d15 52 extern "C" {
Wolfgang Betz 130:770ce14d3d15 53 #include "hci.h"
Wolfgang Betz 130:770ce14d3d15 54 }
Wolfgang Betz 130:770ce14d3d15 55
Wolfgang Betz 130:770ce14d3d15 56 #define HEADER_SIZE 5
Wolfgang Betz 130:770ce14d3d15 57 #define MAX_BUFFER_SIZE 255
Wolfgang Betz 130:770ce14d3d15 58
Wolfgang Betz 130:770ce14d3d15 59 /**
Wolfgang Betz 130:770ce14d3d15 60 * The singleton which represents the BlueNRG transport for the BLEDevice.
Wolfgang Betz 130:770ce14d3d15 61 *
Wolfgang Betz 130:770ce14d3d15 62 * See file 'x_nucleo_idb0xa1_targets.h' for details regarding the peripheral pins used!
Wolfgang Betz 130:770ce14d3d15 63 */
Wolfgang Betz 130:770ce14d3d15 64 #include "x_nucleo_idb0xa1_targets.h"
Wolfgang Betz 130:770ce14d3d15 65
Wolfgang Betz 130:770ce14d3d15 66 BlueNRGDevice bluenrgDeviceInstance(IDB0XA1_PIN_SPI_MOSI,
Wolfgang Betz 130:770ce14d3d15 67 IDB0XA1_PIN_SPI_MISO,
Wolfgang Betz 130:770ce14d3d15 68 IDB0XA1_PIN_SPI_SCK,
Wolfgang Betz 130:770ce14d3d15 69 IDB0XA1_PIN_SPI_nCS,
Wolfgang Betz 130:770ce14d3d15 70 IDB0XA1_PIN_SPI_RESET,
Wolfgang Betz 130:770ce14d3d15 71 IDB0XA1_PIN_SPI_IRQ);
Wolfgang Betz 130:770ce14d3d15 72
Wolfgang Betz 130:770ce14d3d15 73 /**
Wolfgang Betz 130:770ce14d3d15 74 * BLE-API requires an implementation of the following function in order to
Wolfgang Betz 130:770ce14d3d15 75 * obtain its transport handle.
Wolfgang Betz 130:770ce14d3d15 76 */
Wolfgang Betz 130:770ce14d3d15 77 BLEInstanceBase *
Wolfgang Betz 130:770ce14d3d15 78 createBLEInstance(void)
Wolfgang Betz 130:770ce14d3d15 79 {
Wolfgang Betz 130:770ce14d3d15 80 return (&bluenrgDeviceInstance);
Wolfgang Betz 130:770ce14d3d15 81 }
Wolfgang Betz 130:770ce14d3d15 82
Wolfgang Betz 130:770ce14d3d15 83 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 84 /**
Wolfgang Betz 130:770ce14d3d15 85 @brief Constructor
Wolfgang Betz 130:770ce14d3d15 86 * @param mosi mbed pin to use for MOSI line of SPI interface
Wolfgang Betz 130:770ce14d3d15 87 * @param miso mbed pin to use for MISO line of SPI interface
Wolfgang Betz 130:770ce14d3d15 88 * @param sck mbed pin to use for SCK line of SPI interface
Wolfgang Betz 130:770ce14d3d15 89 * @param cs mbed pin to use for not chip select line of SPI interface
Wolfgang Betz 130:770ce14d3d15 90 * @param rst mbed pin to use for BlueNRG reset
Wolfgang Betz 130:770ce14d3d15 91 * @param irq mbed pin for BlueNRG IRQ
Wolfgang Betz 130:770ce14d3d15 92 */
Wolfgang Betz 130:770ce14d3d15 93 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 94 BlueNRGDevice::BlueNRGDevice(PinName mosi,
Wolfgang Betz 130:770ce14d3d15 95 PinName miso,
Wolfgang Betz 130:770ce14d3d15 96 PinName sck,
Wolfgang Betz 130:770ce14d3d15 97 PinName cs,
Wolfgang Betz 130:770ce14d3d15 98 PinName rst,
Wolfgang Betz 168:ad1dff5dca1f 99 PinName irq) :
Wolfgang Betz 168:ad1dff5dca1f 100 isInitialized(false), spi_(mosi, miso, sck), nCS_(cs), rst_(rst), irq_(irq)
Wolfgang Betz 130:770ce14d3d15 101 {
Wolfgang Betz 130:770ce14d3d15 102 // Setup the spi for 8 bit data, low clock polarity,
Wolfgang Betz 130:770ce14d3d15 103 // 1-edge phase, with an 8MHz clock rate
Wolfgang Betz 130:770ce14d3d15 104 spi_.format(8, 0);
Wolfgang Betz 130:770ce14d3d15 105 spi_.frequency(8000000);
Wolfgang Betz 130:770ce14d3d15 106
Wolfgang Betz 130:770ce14d3d15 107 // Deselect the BlueNRG chip by keeping its nCS signal high
Wolfgang Betz 130:770ce14d3d15 108 nCS_ = 1;
Wolfgang Betz 130:770ce14d3d15 109
Wolfgang Betz 130:770ce14d3d15 110 wait_us(500);
avilei 232:f2a7da5d24e1 111
avilei 232:f2a7da5d24e1 112 // Set the interrupt handler for the device
avilei 232:f2a7da5d24e1 113 irq_.mode(PullDown); // set irq mode
avilei 232:f2a7da5d24e1 114 irq_.rise(&HCI_Isr);
avilei 232:f2a7da5d24e1 115
avilei 232:f2a7da5d24e1 116 // Prepare communication between the host and the BTLE HW device
avilei 232:f2a7da5d24e1 117 btleInitHW();
Wolfgang Betz 130:770ce14d3d15 118 }
Wolfgang Betz 130:770ce14d3d15 119
Wolfgang Betz 130:770ce14d3d15 120 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 121 /**
Wolfgang Betz 130:770ce14d3d15 122 @brief Destructor
Wolfgang Betz 130:770ce14d3d15 123 */
Wolfgang Betz 130:770ce14d3d15 124 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 125 BlueNRGDevice::~BlueNRGDevice(void)
Wolfgang Betz 130:770ce14d3d15 126 {
Wolfgang Betz 130:770ce14d3d15 127 }
Wolfgang Betz 130:770ce14d3d15 128
avilei 232:f2a7da5d24e1 129 /**
avilei 232:f2a7da5d24e1 130 * @brief Get BlueNRG HW updater version
avilei 232:f2a7da5d24e1 131 * @param version This parameter returns the updater HW version.
avilei 232:f2a7da5d24e1 132 * @retval Status of the call
avilei 232:f2a7da5d24e1 133 */
avilei 232:f2a7da5d24e1 134 uint8_t BlueNRGDevice::getUpdaterHardwareVersion(uint8_t *upd_hw_version)
avilei 232:f2a7da5d24e1 135 {
avilei 232:f2a7da5d24e1 136 uint8_t status;
avilei 232:f2a7da5d24e1 137
avilei 232:f2a7da5d24e1 138 status = btleGetUpdaterHWVersion(upd_hw_version);
avilei 232:f2a7da5d24e1 139
avilei 232:f2a7da5d24e1 140 return (status);
avilei 232:f2a7da5d24e1 141 }
avilei 232:f2a7da5d24e1 142
avilei 232:f2a7da5d24e1 143 /**
avilei 232:f2a7da5d24e1 144 * @brief Flash a new firmware using internal bootloader.
avilei 232:f2a7da5d24e1 145 * @param fw_image Pointer to the firmware image (raw binary data,
avilei 232:f2a7da5d24e1 146 * little-endian).
avilei 232:f2a7da5d24e1 147 * @param fw_size Size of the firmware image. The firmware image size shall
avilei 232:f2a7da5d24e1 148 * be multiple of 4 bytes.
avilei 232:f2a7da5d24e1 149 * @retval int It returns 0 if successful, or a number not equal to 0 in
avilei 232:f2a7da5d24e1 150 * case of error (ACI_ERROR, UNSUPPORTED_VERSION,
avilei 232:f2a7da5d24e1 151 * WRONG_IMAGE_SIZE, CRC_ERROR)
avilei 232:f2a7da5d24e1 152 */
avilei 232:f2a7da5d24e1 153 int BlueNRGDevice::updateFirmware(const uint8_t *fw_image, uint32_t fw_size)
avilei 232:f2a7da5d24e1 154 {
avilei 232:f2a7da5d24e1 155 int status = btleUpdateFirmware(fw_image, fw_size);
avilei 232:f2a7da5d24e1 156
avilei 232:f2a7da5d24e1 157 return (status);
avilei 232:f2a7da5d24e1 158 }
avilei 232:f2a7da5d24e1 159
Wolfgang Betz 130:770ce14d3d15 160
Wolfgang Betz 130:770ce14d3d15 161 /**
Wolfgang Betz 130:770ce14d3d15 162 @brief Initialises anything required to start using BLE
Wolfgang Betz 130:770ce14d3d15 163 @param[in] void
Wolfgang Betz 130:770ce14d3d15 164 @returns ble_error_t
Wolfgang Betz 130:770ce14d3d15 165 */
Andrea Palmieri 167:abc42e7158a6 166 ble_error_t BlueNRGDevice::init(BLE::InstanceID_t instanceID, FunctionPointerWithContext<BLE::InitializationCompleteCallbackContext *> callback)
Wolfgang Betz 130:770ce14d3d15 167 {
Andrea Palmieri 167:abc42e7158a6 168 if (isInitialized) {
Andrea Palmieri 167:abc42e7158a6 169 BLE::InitializationCompleteCallbackContext context = {
Andrea Palmieri 167:abc42e7158a6 170 BLE::Instance(instanceID),
Andrea Palmieri 167:abc42e7158a6 171 BLE_ERROR_ALREADY_INITIALIZED
Andrea Palmieri 167:abc42e7158a6 172 };
Andrea Palmieri 167:abc42e7158a6 173 callback.call(&context);
Andrea Palmieri 167:abc42e7158a6 174 return BLE_ERROR_ALREADY_INITIALIZED;
Andrea Palmieri 167:abc42e7158a6 175 }
Wolfgang Betz 173:821942ac7d5a 176
Wolfgang Betz 130:770ce14d3d15 177 /* ToDo: Clear memory contents, reset the SD, etc. */
avilei 232:f2a7da5d24e1 178 // Start the BlueNRG/BlueNRG-MS stack
Wolfgang Betz 132:51056160fa4a 179 // By default, we set the device GAP role to PERIPHERAL
avilei 232:f2a7da5d24e1 180 btleStart(BlueNRGGap::getInstance().getIsSetAddress(), GAP_PERIPHERAL_ROLE_IDB04A1);
Wolfgang Betz 130:770ce14d3d15 181
Wolfgang Betz 130:770ce14d3d15 182 isInitialized = true;
Andrea Palmieri 167:abc42e7158a6 183 BLE::InitializationCompleteCallbackContext context = {
Andrea Palmieri 167:abc42e7158a6 184 BLE::Instance(instanceID),
Andrea Palmieri 167:abc42e7158a6 185 BLE_ERROR_NONE
Andrea Palmieri 167:abc42e7158a6 186 };
Andrea Palmieri 167:abc42e7158a6 187 callback.call(&context);
Wolfgang Betz 130:770ce14d3d15 188
Wolfgang Betz 130:770ce14d3d15 189 return BLE_ERROR_NONE;
Wolfgang Betz 130:770ce14d3d15 190 }
Wolfgang Betz 130:770ce14d3d15 191
Wolfgang Betz 130:770ce14d3d15 192
Wolfgang Betz 130:770ce14d3d15 193 /**
Wolfgang Betz 130:770ce14d3d15 194 @brief Resets the BLE HW, removing any existing services and
Wolfgang Betz 130:770ce14d3d15 195 characteristics
Wolfgang Betz 130:770ce14d3d15 196 @param[in] void
Andrea Palmieri 219:9981f62cdb1a 197 @returns void
Wolfgang Betz 130:770ce14d3d15 198 */
Andrea Palmieri 219:9981f62cdb1a 199 void BlueNRGDevice::reset(void)
Wolfgang Betz 130:770ce14d3d15 200 {
Wolfgang Betz 130:770ce14d3d15 201 wait_us(500);
Wolfgang Betz 130:770ce14d3d15 202
Wolfgang Betz 130:770ce14d3d15 203 /* Reset BlueNRG SPI interface */
Wolfgang Betz 130:770ce14d3d15 204 rst_ = 0;
Wolfgang Betz 130:770ce14d3d15 205 wait_us(5);
Wolfgang Betz 130:770ce14d3d15 206 rst_ = 1;
Wolfgang Betz 130:770ce14d3d15 207 wait_us(5);
Wolfgang Betz 130:770ce14d3d15 208
Wolfgang Betz 130:770ce14d3d15 209 /* Wait for the radio to come back up */
Wolfgang Betz 130:770ce14d3d15 210 wait_us(500);
Wolfgang Betz 130:770ce14d3d15 211
Wolfgang Betz 130:770ce14d3d15 212 }
Wolfgang Betz 130:770ce14d3d15 213
Wolfgang Betz 130:770ce14d3d15 214 /*!
Wolfgang Betz 130:770ce14d3d15 215 @brief Wait for any BLE Event like BLE Connection, Read Request etc.
Wolfgang Betz 130:770ce14d3d15 216 @param[in] void
Wolfgang Betz 130:770ce14d3d15 217 @returns char *
Wolfgang Betz 130:770ce14d3d15 218 */
Wolfgang Betz 130:770ce14d3d15 219 void BlueNRGDevice::waitForEvent(void)
Wolfgang Betz 130:770ce14d3d15 220 {
Wolfgang Betz 130:770ce14d3d15 221 bool must_return = false;
Wolfgang Betz 130:770ce14d3d15 222
Wolfgang Betz 130:770ce14d3d15 223 do {
Wolfgang Betz 130:770ce14d3d15 224 BlueNRGGap::getInstance().Process();
Wolfgang Betz 130:770ce14d3d15 225
Wolfgang Betz 130:770ce14d3d15 226 HCI_Process();
Wolfgang Betz 130:770ce14d3d15 227
Wolfgang Betz 130:770ce14d3d15 228 if(must_return) return;
Wolfgang Betz 130:770ce14d3d15 229
Wolfgang Betz 130:770ce14d3d15 230 __WFE(); /* it is recommended that SEVONPEND in the
Wolfgang Betz 130:770ce14d3d15 231 System Control Register is NOT set */
Wolfgang Betz 130:770ce14d3d15 232 must_return = true; /* after returning from WFE we must guarantee
Wolfgang Betz 130:770ce14d3d15 233 that conrol is given back to main loop before next WFE */
Wolfgang Betz 130:770ce14d3d15 234 } while(true);
Wolfgang Betz 130:770ce14d3d15 235
Wolfgang Betz 139:3a75965fd389 236 }
Wolfgang Betz 130:770ce14d3d15 237
Wolfgang Betz 130:770ce14d3d15 238 /*!
Wolfgang Betz 130:770ce14d3d15 239 @brief get GAP version
Andrea Palmieri 206:7aa807180321 240 @brief Get the BLE stack version information
Wolfgang Betz 130:770ce14d3d15 241 @param[in] void
Wolfgang Betz 130:770ce14d3d15 242 @returns char *
Andrea Palmieri 206:7aa807180321 243 @returns char *
Wolfgang Betz 130:770ce14d3d15 244 */
Wolfgang Betz 130:770ce14d3d15 245 const char *BlueNRGDevice::getVersion(void)
Wolfgang Betz 130:770ce14d3d15 246 {
Andrea Palmieri 206:7aa807180321 247 return getVersionString();
Wolfgang Betz 130:770ce14d3d15 248 }
Wolfgang Betz 130:770ce14d3d15 249
Wolfgang Betz 130:770ce14d3d15 250 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 251 /*!
Wolfgang Betz 130:770ce14d3d15 252 @brief get reference to GAP object
Wolfgang Betz 130:770ce14d3d15 253 @param[in] void
Wolfgang Betz 130:770ce14d3d15 254 @returns Gap&
Wolfgang Betz 130:770ce14d3d15 255 */
Wolfgang Betz 130:770ce14d3d15 256 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 257 Gap &BlueNRGDevice::getGap()
Wolfgang Betz 130:770ce14d3d15 258 {
Wolfgang Betz 130:770ce14d3d15 259 return BlueNRGGap::getInstance();
Wolfgang Betz 130:770ce14d3d15 260 }
Wolfgang Betz 130:770ce14d3d15 261
Wolfgang Betz 130:770ce14d3d15 262 const Gap &BlueNRGDevice::getGap() const
Wolfgang Betz 130:770ce14d3d15 263 {
Wolfgang Betz 130:770ce14d3d15 264 return BlueNRGGap::getInstance();
Wolfgang Betz 130:770ce14d3d15 265 }
Wolfgang Betz 130:770ce14d3d15 266
Wolfgang Betz 130:770ce14d3d15 267 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 268 /*!
Wolfgang Betz 130:770ce14d3d15 269 @brief get reference to GATT server object
Wolfgang Betz 130:770ce14d3d15 270 @param[in] void
Wolfgang Betz 130:770ce14d3d15 271 @returns GattServer&
Wolfgang Betz 130:770ce14d3d15 272 */
Wolfgang Betz 130:770ce14d3d15 273 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 274 GattServer &BlueNRGDevice::getGattServer()
Wolfgang Betz 130:770ce14d3d15 275 {
Wolfgang Betz 130:770ce14d3d15 276 return BlueNRGGattServer::getInstance();
Wolfgang Betz 130:770ce14d3d15 277 }
Wolfgang Betz 130:770ce14d3d15 278
Wolfgang Betz 130:770ce14d3d15 279 const GattServer &BlueNRGDevice::getGattServer() const
Wolfgang Betz 130:770ce14d3d15 280 {
Wolfgang Betz 130:770ce14d3d15 281 return BlueNRGGattServer::getInstance();
Wolfgang Betz 130:770ce14d3d15 282 }
Wolfgang Betz 130:770ce14d3d15 283
Wolfgang Betz 130:770ce14d3d15 284 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 285 /*!
Andrea Palmieri 206:7aa807180321 286 @brief shut down the BLE device
Wolfgang Betz 130:770ce14d3d15 287 @param[out] error if any
Wolfgang Betz 130:770ce14d3d15 288 */
Wolfgang Betz 130:770ce14d3d15 289 /**************************************************************************/
Wolfgang Betz 130:770ce14d3d15 290 ble_error_t BlueNRGDevice::shutdown(void) {
Andrea Palmieri 206:7aa807180321 291 if (!isInitialized) {
Andrea Palmieri 206:7aa807180321 292 return BLE_ERROR_INITIALIZATION_INCOMPLETE;
Andrea Palmieri 206:7aa807180321 293 }
Andrea Palmieri 206:7aa807180321 294
Andrea Palmieri 219:9981f62cdb1a 295 /* Reset the BlueNRG device first */
Andrea Palmieri 219:9981f62cdb1a 296 reset();
Andrea Palmieri 219:9981f62cdb1a 297
Andrea Palmieri 219:9981f62cdb1a 298 /* Shutdown the BLE API and BlueNRG glue code */
Andrea Palmieri 219:9981f62cdb1a 299 ble_error_t error;
Andrea Palmieri 219:9981f62cdb1a 300
Andrea Palmieri 219:9981f62cdb1a 301 /* GattServer instance */
Andrea Palmieri 219:9981f62cdb1a 302 error = BlueNRGGattServer::getInstance().reset();
Andrea Palmieri 219:9981f62cdb1a 303 if (error != BLE_ERROR_NONE) {
Andrea Palmieri 219:9981f62cdb1a 304 return error;
Andrea Palmieri 219:9981f62cdb1a 305 }
Andrea Palmieri 219:9981f62cdb1a 306
Andrea Palmieri 219:9981f62cdb1a 307 /* GattClient instance */
Andrea Palmieri 219:9981f62cdb1a 308 error = BlueNRGGattClient::getInstance().reset();
Andrea Palmieri 219:9981f62cdb1a 309 if (error != BLE_ERROR_NONE) {
Andrea Palmieri 219:9981f62cdb1a 310 return error;
Andrea Palmieri 219:9981f62cdb1a 311 }
Andrea Palmieri 219:9981f62cdb1a 312
Andrea Palmieri 219:9981f62cdb1a 313 /* Gap instance */
Andrea Palmieri 219:9981f62cdb1a 314 error = BlueNRGGap::getInstance().reset();
Andrea Palmieri 219:9981f62cdb1a 315 if (error != BLE_ERROR_NONE) {
Andrea Palmieri 219:9981f62cdb1a 316 return error;
Andrea Palmieri 219:9981f62cdb1a 317 }
Andrea Palmieri 219:9981f62cdb1a 318
Andrea Palmieri 219:9981f62cdb1a 319 isInitialized = false;
Andrea Palmieri 219:9981f62cdb1a 320
Andrea Palmieri 219:9981f62cdb1a 321 return BLE_ERROR_NONE;
Andrea Palmieri 219:9981f62cdb1a 322
Wolfgang Betz 130:770ce14d3d15 323 }
Wolfgang Betz 130:770ce14d3d15 324
Wolfgang Betz 130:770ce14d3d15 325 /**
Wolfgang Betz 130:770ce14d3d15 326 * @brief Reads from BlueNRG SPI buffer and store data into local buffer.
Wolfgang Betz 130:770ce14d3d15 327 * @param buffer : Buffer where data from SPI are stored
Wolfgang Betz 130:770ce14d3d15 328 * @param buff_size: Buffer size
Wolfgang Betz 130:770ce14d3d15 329 * @retval int32_t : Number of read bytes
Wolfgang Betz 130:770ce14d3d15 330 */
Wolfgang Betz 130:770ce14d3d15 331 int32_t BlueNRGDevice::spiRead(uint8_t *buffer, uint8_t buff_size)
Wolfgang Betz 130:770ce14d3d15 332 {
Wolfgang Betz 130:770ce14d3d15 333 uint16_t byte_count;
Wolfgang Betz 130:770ce14d3d15 334 uint8_t len = 0;
Wolfgang Betz 130:770ce14d3d15 335 uint8_t char_ff = 0xff;
Wolfgang Betz 130:770ce14d3d15 336 volatile uint8_t read_char;
Wolfgang Betz 130:770ce14d3d15 337
Wolfgang Betz 130:770ce14d3d15 338 uint8_t i = 0;
Wolfgang Betz 130:770ce14d3d15 339 volatile uint8_t tmpreg;
Wolfgang Betz 130:770ce14d3d15 340
Wolfgang Betz 130:770ce14d3d15 341 uint8_t header_master[HEADER_SIZE] = {0x0b, 0x00, 0x00, 0x00, 0x00};
Wolfgang Betz 130:770ce14d3d15 342 uint8_t header_slave[HEADER_SIZE];
Wolfgang Betz 130:770ce14d3d15 343
Wolfgang Betz 130:770ce14d3d15 344 /* Select the chip */
Wolfgang Betz 130:770ce14d3d15 345 nCS_ = 0;
Wolfgang Betz 130:770ce14d3d15 346
Wolfgang Betz 130:770ce14d3d15 347 /* Read the header */
Wolfgang Betz 130:770ce14d3d15 348 for (i = 0; i < 5; i++)
Wolfgang Betz 130:770ce14d3d15 349 {
Wolfgang Betz 130:770ce14d3d15 350 tmpreg = spi_.write(header_master[i]);
Wolfgang Betz 130:770ce14d3d15 351 header_slave[i] = (uint8_t)(tmpreg);
Wolfgang Betz 130:770ce14d3d15 352 }
Wolfgang Betz 130:770ce14d3d15 353
Wolfgang Betz 130:770ce14d3d15 354 if (header_slave[0] == 0x02) {
Wolfgang Betz 130:770ce14d3d15 355 /* device is ready */
Wolfgang Betz 130:770ce14d3d15 356 byte_count = (header_slave[4]<<8)|header_slave[3];
Wolfgang Betz 130:770ce14d3d15 357
Wolfgang Betz 130:770ce14d3d15 358 if (byte_count > 0) {
Wolfgang Betz 130:770ce14d3d15 359
Wolfgang Betz 130:770ce14d3d15 360 /* avoid to read more data that size of the buffer */
Wolfgang Betz 130:770ce14d3d15 361 if (byte_count > buff_size){
Wolfgang Betz 130:770ce14d3d15 362 byte_count = buff_size;
Wolfgang Betz 130:770ce14d3d15 363 }
Wolfgang Betz 130:770ce14d3d15 364
Wolfgang Betz 130:770ce14d3d15 365 for (len = 0; len < byte_count; len++){
Wolfgang Betz 130:770ce14d3d15 366 read_char = spi_.write(char_ff);
Wolfgang Betz 130:770ce14d3d15 367 buffer[len] = read_char;
Wolfgang Betz 130:770ce14d3d15 368 }
Wolfgang Betz 130:770ce14d3d15 369 }
Wolfgang Betz 130:770ce14d3d15 370 }
Wolfgang Betz 130:770ce14d3d15 371 /* Release CS line to deselect the chip */
Wolfgang Betz 130:770ce14d3d15 372 nCS_ = 1;
Wolfgang Betz 130:770ce14d3d15 373
Wolfgang Betz 130:770ce14d3d15 374 // Add a small delay to give time to the BlueNRG to set the IRQ pin low
Wolfgang Betz 130:770ce14d3d15 375 // to avoid a useless SPI read at the end of the transaction
Wolfgang Betz 130:770ce14d3d15 376 for(volatile int i = 0; i < 2; i++)__NOP();
Wolfgang Betz 130:770ce14d3d15 377
Wolfgang Betz 130:770ce14d3d15 378 #ifdef PRINT_CSV_FORMAT
Wolfgang Betz 130:770ce14d3d15 379 if (len > 0) {
Wolfgang Betz 130:770ce14d3d15 380 print_csv_time();
Wolfgang Betz 130:770ce14d3d15 381 for (int i=0; i<len; i++) {
Wolfgang Betz 130:770ce14d3d15 382 PRINT_CSV(" %02x", buffer[i]);
Wolfgang Betz 130:770ce14d3d15 383 }
Wolfgang Betz 130:770ce14d3d15 384 PRINT_CSV("\n");
Wolfgang Betz 130:770ce14d3d15 385 }
Wolfgang Betz 130:770ce14d3d15 386 #endif
Wolfgang Betz 130:770ce14d3d15 387
Wolfgang Betz 130:770ce14d3d15 388 return len;
Wolfgang Betz 130:770ce14d3d15 389 }
Wolfgang Betz 130:770ce14d3d15 390
Wolfgang Betz 130:770ce14d3d15 391 /**
Wolfgang Betz 130:770ce14d3d15 392 * @brief Writes data from local buffer to SPI.
Wolfgang Betz 130:770ce14d3d15 393 * @param data1 : First data buffer to be written
Wolfgang Betz 130:770ce14d3d15 394 * @param data2 : Second data buffer to be written
Wolfgang Betz 130:770ce14d3d15 395 * @param Nb_bytes1: Size of first data buffer to be written
Wolfgang Betz 130:770ce14d3d15 396 * @param Nb_bytes2: Size of second data buffer to be written
Wolfgang Betz 130:770ce14d3d15 397 * @retval Number of read bytes
Wolfgang Betz 130:770ce14d3d15 398 */
Wolfgang Betz 130:770ce14d3d15 399 int32_t BlueNRGDevice::spiWrite(uint8_t* data1,
Wolfgang Betz 130:770ce14d3d15 400 uint8_t* data2, uint8_t Nb_bytes1, uint8_t Nb_bytes2)
Wolfgang Betz 130:770ce14d3d15 401 {
Wolfgang Betz 130:770ce14d3d15 402 int32_t result = 0;
Wolfgang Betz 130:770ce14d3d15 403 uint32_t i;
Wolfgang Betz 130:770ce14d3d15 404 volatile uint8_t tmpreg;
Wolfgang Betz 130:770ce14d3d15 405
Wolfgang Betz 130:770ce14d3d15 406 unsigned char header_master[HEADER_SIZE] = {0x0a, 0x00, 0x00, 0x00, 0x00};
Wolfgang Betz 130:770ce14d3d15 407 unsigned char header_slave[HEADER_SIZE] = {0xaa, 0x00, 0x00, 0x00, 0x00};
Wolfgang Betz 130:770ce14d3d15 408
Wolfgang Betz 130:770ce14d3d15 409 disable_irq();
Wolfgang Betz 130:770ce14d3d15 410
Wolfgang Betz 130:770ce14d3d15 411 /* CS reset */
Wolfgang Betz 130:770ce14d3d15 412 nCS_ = 0;
Wolfgang Betz 130:770ce14d3d15 413
Wolfgang Betz 130:770ce14d3d15 414 /* Exchange header */
Wolfgang Betz 130:770ce14d3d15 415 for (i = 0; i < 5; i++)
Wolfgang Betz 130:770ce14d3d15 416 {
Wolfgang Betz 130:770ce14d3d15 417 tmpreg = spi_.write(header_master[i]);
Wolfgang Betz 130:770ce14d3d15 418 header_slave[i] = tmpreg;
Wolfgang Betz 130:770ce14d3d15 419 }
Wolfgang Betz 130:770ce14d3d15 420
Wolfgang Betz 130:770ce14d3d15 421 if (header_slave[0] == 0x02) {
Wolfgang Betz 130:770ce14d3d15 422 /* SPI is ready */
Wolfgang Betz 130:770ce14d3d15 423 if (header_slave[1] >= (Nb_bytes1+Nb_bytes2)) {
Wolfgang Betz 130:770ce14d3d15 424
Wolfgang Betz 130:770ce14d3d15 425 /* Buffer is big enough */
Wolfgang Betz 130:770ce14d3d15 426 for (i = 0; i < Nb_bytes1; i++) {
Wolfgang Betz 130:770ce14d3d15 427 spi_.write(*(data1 + i));
Wolfgang Betz 130:770ce14d3d15 428 }
Wolfgang Betz 130:770ce14d3d15 429 for (i = 0; i < Nb_bytes2; i++) {
Wolfgang Betz 130:770ce14d3d15 430 spi_.write(*(data2 + i));
Wolfgang Betz 130:770ce14d3d15 431 }
Wolfgang Betz 130:770ce14d3d15 432 } else {
Wolfgang Betz 130:770ce14d3d15 433 /* Buffer is too small */
Wolfgang Betz 130:770ce14d3d15 434 result = -2;
Wolfgang Betz 130:770ce14d3d15 435 }
Wolfgang Betz 130:770ce14d3d15 436 } else {
Wolfgang Betz 130:770ce14d3d15 437 /* SPI is not ready */
Wolfgang Betz 130:770ce14d3d15 438 result = -1;
Wolfgang Betz 130:770ce14d3d15 439 }
Wolfgang Betz 130:770ce14d3d15 440
Wolfgang Betz 130:770ce14d3d15 441 /* Release CS line */
Wolfgang Betz 130:770ce14d3d15 442 //HAL_GPIO_WritePin(BNRG_SPI_CS_PORT, BNRG_SPI_CS_PIN, GPIO_PIN_SET);
Wolfgang Betz 130:770ce14d3d15 443 nCS_ = 1;
Wolfgang Betz 130:770ce14d3d15 444
Wolfgang Betz 130:770ce14d3d15 445 enable_irq();
Wolfgang Betz 130:770ce14d3d15 446
Wolfgang Betz 130:770ce14d3d15 447 return result;
Wolfgang Betz 130:770ce14d3d15 448 }
Wolfgang Betz 130:770ce14d3d15 449
Wolfgang Betz 130:770ce14d3d15 450 bool BlueNRGDevice::dataPresent()
Wolfgang Betz 130:770ce14d3d15 451 {
Wolfgang Betz 130:770ce14d3d15 452 return (irq_ == 1);
Wolfgang Betz 130:770ce14d3d15 453 }
Wolfgang Betz 130:770ce14d3d15 454
Wolfgang Betz 130:770ce14d3d15 455 void BlueNRGDevice::disable_irq()
Wolfgang Betz 130:770ce14d3d15 456 {
Wolfgang Betz 130:770ce14d3d15 457 irq_.disable_irq();
Wolfgang Betz 130:770ce14d3d15 458 }
Wolfgang Betz 130:770ce14d3d15 459
Wolfgang Betz 130:770ce14d3d15 460 void BlueNRGDevice::enable_irq()
Wolfgang Betz 130:770ce14d3d15 461 {
Wolfgang Betz 130:770ce14d3d15 462 irq_.enable_irq();
Wolfgang Betz 130:770ce14d3d15 463 }