Michael Galis / nRF51822

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Fork of nRF51822 by Nordic Semiconductor

source/nRF5xGattServer.cpp@521:1db090c0e563, 2015-12-02 (annotated)

Committer:
rgrover1
Date:
Wed Dec 02 12:58:42 2015 +0000
Revision:
521:1db090c0e563
Parent:
517:23d16e238129
Child:
522:0f791e328558
Synchronized with git rev f4f35c8a

Author: Rohit Grover

Release 2.1.1

=============



A minor release to separate the concept of minlen and len in

GattCharacteristic.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 388:db85a09c27ef 1 /* mbed Microcontroller Library
rgrover1 388:db85a09c27ef 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 388:db85a09c27ef 3 *
rgrover1 388:db85a09c27ef 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 388:db85a09c27ef 5 * you may not use this file except in compliance with the License.
rgrover1 388:db85a09c27ef 6 * You may obtain a copy of the License at
rgrover1 388:db85a09c27ef 7 *
rgrover1 388:db85a09c27ef 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 388:db85a09c27ef 9 *
rgrover1 388:db85a09c27ef 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 388:db85a09c27ef 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 388:db85a09c27ef 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 388:db85a09c27ef 13 * See the License for the specific language governing permissions and
rgrover1 388:db85a09c27ef 14 * limitations under the License.
rgrover1 388:db85a09c27ef 15 */
rgrover1 388:db85a09c27ef 16
rgrover1 388:db85a09c27ef 17 #include "nRF5xGattServer.h"
rgrover1 388:db85a09c27ef 18 #include "mbed.h"
rgrover1 388:db85a09c27ef 19
rgrover1 388:db85a09c27ef 20 #include "common/common.h"
rgrover1 388:db85a09c27ef 21 #include "btle/custom/custom_helper.h"
rgrover1 388:db85a09c27ef 22
rgrover1 388:db85a09c27ef 23 #include "nRF5xGap.h"
rgrover1 388:db85a09c27ef 24
rgrover1 388:db85a09c27ef 25 nRF5xGattServer &nRF5xGattServer::getInstance(void) {
rgrover1 388:db85a09c27ef 26 static nRF5xGattServer m_instance;
rgrover1 388:db85a09c27ef 27 return m_instance;
rgrover1 388:db85a09c27ef 28 }
rgrover1 388:db85a09c27ef 29
rgrover1 388:db85a09c27ef 30 /**************************************************************************/
rgrover1 388:db85a09c27ef 31 /*!
rgrover1 388:db85a09c27ef 32 @brief Adds a new service to the GATT table on the peripheral
rgrover1 388:db85a09c27ef 33
rgrover1 388:db85a09c27ef 34 @returns ble_error_t
rgrover1 388:db85a09c27ef 35
rgrover1 388:db85a09c27ef 36 @retval BLE_ERROR_NONE
rgrover1 388:db85a09c27ef 37 Everything executed properly
rgrover1 388:db85a09c27ef 38
rgrover1 388:db85a09c27ef 39 @section EXAMPLE
rgrover1 388:db85a09c27ef 40
rgrover1 388:db85a09c27ef 41 @code
rgrover1 388:db85a09c27ef 42
rgrover1 388:db85a09c27ef 43 @endcode
rgrover1 388:db85a09c27ef 44 */
rgrover1 388:db85a09c27ef 45 /**************************************************************************/
rgrover1 388:db85a09c27ef 46 ble_error_t nRF5xGattServer::addService(GattService &service)
rgrover1 388:db85a09c27ef 47 {
rgrover1 388:db85a09c27ef 48 /* ToDo: Make sure this service UUID doesn't already exist (?) */
rgrover1 388:db85a09c27ef 49 /* ToDo: Basic validation */
rgrover1 388:db85a09c27ef 50
rgrover1 388:db85a09c27ef 51 /* Add the service to the nRF51 */
rgrover1 388:db85a09c27ef 52 ble_uuid_t nordicUUID;
rgrover1 388:db85a09c27ef 53 nordicUUID = custom_convert_to_nordic_uuid(service.getUUID());
rgrover1 388:db85a09c27ef 54
rgrover1 388:db85a09c27ef 55 uint16_t serviceHandle;
rgrover1 388:db85a09c27ef 56 ASSERT( ERROR_NONE ==
rgrover1 388:db85a09c27ef 57 sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
rgrover1 388:db85a09c27ef 58 &nordicUUID,
rgrover1 388:db85a09c27ef 59 &serviceHandle),
rgrover1 388:db85a09c27ef 60 BLE_ERROR_PARAM_OUT_OF_RANGE );
rgrover1 388:db85a09c27ef 61 service.setHandle(serviceHandle);
rgrover1 388:db85a09c27ef 62
rgrover1 388:db85a09c27ef 63 /* Add characteristics to the service */
rgrover1 388:db85a09c27ef 64 for (uint8_t i = 0; i < service.getCharacteristicCount(); i++) {
rgrover1 455:e33de7c4574c 65 if (characteristicCount >= BLE_TOTAL_CHARACTERISTICS) {
rgrover1 455:e33de7c4574c 66 return BLE_ERROR_NO_MEM;
rgrover1 455:e33de7c4574c 67 }
rgrover1 451:87e7f14a3fa1 68 GattCharacteristic *p_char = service.getCharacteristic(i);
rgrover1 388:db85a09c27ef 69
rgrover1 388:db85a09c27ef 70 /* Skip any incompletely defined, read-only characteristics. */
rgrover1 388:db85a09c27ef 71 if ((p_char->getValueAttribute().getValuePtr() == NULL) &&
rgrover1 521:1db090c0e563 72 (p_char->getValueAttribute().getLength() == 0) &&
rgrover1 388:db85a09c27ef 73 (p_char->getProperties() == GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ)) {
rgrover1 388:db85a09c27ef 74 continue;
rgrover1 388:db85a09c27ef 75 }
rgrover1 388:db85a09c27ef 76
rgrover1 388:db85a09c27ef 77 nordicUUID = custom_convert_to_nordic_uuid(p_char->getValueAttribute().getUUID());
rgrover1 388:db85a09c27ef 78
rgrover1 388:db85a09c27ef 79 /* The user-description descriptor is a special case which needs to be
rgrover1 388:db85a09c27ef 80 * handled at the time of adding the characteristic. The following block
rgrover1 388:db85a09c27ef 81 * is meant to discover its presence. */
rgrover1 388:db85a09c27ef 82 const uint8_t *userDescriptionDescriptorValuePtr = NULL;
rgrover1 388:db85a09c27ef 83 uint16_t userDescriptionDescriptorValueLen = 0;
rgrover1 388:db85a09c27ef 84 for (uint8_t j = 0; j < p_char->getDescriptorCount(); j++) {
rgrover1 388:db85a09c27ef 85 GattAttribute *p_desc = p_char->getDescriptor(j);
rgrover1 388:db85a09c27ef 86 if (p_desc->getUUID() == BLE_UUID_DESCRIPTOR_CHAR_USER_DESC) {
rgrover1 388:db85a09c27ef 87 userDescriptionDescriptorValuePtr = p_desc->getValuePtr();
rgrover1 388:db85a09c27ef 88 userDescriptionDescriptorValueLen = p_desc->getLength();
rgrover1 388:db85a09c27ef 89 }
rgrover1 388:db85a09c27ef 90 }
rgrover1 388:db85a09c27ef 91
rgrover1 388:db85a09c27ef 92 ASSERT ( ERROR_NONE ==
rgrover1 388:db85a09c27ef 93 custom_add_in_characteristic(BLE_GATT_HANDLE_INVALID,
rgrover1 388:db85a09c27ef 94 &nordicUUID,
rgrover1 388:db85a09c27ef 95 p_char->getProperties(),
rgrover1 388:db85a09c27ef 96 p_char->getRequiredSecurity(),
rgrover1 388:db85a09c27ef 97 p_char->getValueAttribute().getValuePtr(),
rgrover1 521:1db090c0e563 98 p_char->getValueAttribute().getLength(),
rgrover1 388:db85a09c27ef 99 p_char->getValueAttribute().getMaxLength(),
rgrover1 388:db85a09c27ef 100 userDescriptionDescriptorValuePtr,
rgrover1 388:db85a09c27ef 101 userDescriptionDescriptorValueLen,
rgrover1 388:db85a09c27ef 102 p_char->isReadAuthorizationEnabled(),
rgrover1 388:db85a09c27ef 103 p_char->isWriteAuthorizationEnabled(),
rgrover1 388:db85a09c27ef 104 &nrfCharacteristicHandles[characteristicCount]),
rgrover1 388:db85a09c27ef 105 BLE_ERROR_PARAM_OUT_OF_RANGE );
rgrover1 388:db85a09c27ef 106
rgrover1 388:db85a09c27ef 107 /* Update the characteristic handle */
rgrover1 388:db85a09c27ef 108 p_characteristics[characteristicCount] = p_char;
rgrover1 388:db85a09c27ef 109 p_char->getValueAttribute().setHandle(nrfCharacteristicHandles[characteristicCount].value_handle);
rgrover1 388:db85a09c27ef 110 characteristicCount++;
rgrover1 388:db85a09c27ef 111
rgrover1 388:db85a09c27ef 112 /* Add optional descriptors if any */
rgrover1 388:db85a09c27ef 113 for (uint8_t j = 0; j < p_char->getDescriptorCount(); j++) {
rgrover1 455:e33de7c4574c 114 if (descriptorCount >= BLE_TOTAL_DESCRIPTORS) {
rgrover1 455:e33de7c4574c 115 return BLE_ERROR_NO_MEM;
rgrover1 455:e33de7c4574c 116 }
rgrover1 455:e33de7c4574c 117
rgrover1 451:87e7f14a3fa1 118 GattAttribute *p_desc = p_char->getDescriptor(j);
rgrover1 388:db85a09c27ef 119 /* skip the user-description-descriptor here; this has already been handled when adding the characteristic (above). */
rgrover1 388:db85a09c27ef 120 if (p_desc->getUUID() == BLE_UUID_DESCRIPTOR_CHAR_USER_DESC) {
rgrover1 388:db85a09c27ef 121 continue;
rgrover1 388:db85a09c27ef 122 }
rgrover1 388:db85a09c27ef 123
rgrover1 388:db85a09c27ef 124 nordicUUID = custom_convert_to_nordic_uuid(p_desc->getUUID());
rgrover1 388:db85a09c27ef 125
rgrover1 388:db85a09c27ef 126 ASSERT(ERROR_NONE ==
rgrover1 388:db85a09c27ef 127 custom_add_in_descriptor(BLE_GATT_HANDLE_INVALID,
rgrover1 388:db85a09c27ef 128 &nordicUUID,
rgrover1 388:db85a09c27ef 129 p_desc->getValuePtr(),
rgrover1 521:1db090c0e563 130 p_desc->getLength(),
rgrover1 388:db85a09c27ef 131 p_desc->getMaxLength(),
rgrover1 388:db85a09c27ef 132 &nrfDescriptorHandles[descriptorCount]),
rgrover1 388:db85a09c27ef 133 BLE_ERROR_PARAM_OUT_OF_RANGE);
rgrover1 388:db85a09c27ef 134
rgrover1 388:db85a09c27ef 135 p_descriptors[descriptorCount++] = p_desc;
rgrover1 388:db85a09c27ef 136 p_desc->setHandle(nrfDescriptorHandles[descriptorCount]);
rgrover1 388:db85a09c27ef 137 }
rgrover1 388:db85a09c27ef 138 }
rgrover1 388:db85a09c27ef 139
rgrover1 388:db85a09c27ef 140 serviceCount++;
rgrover1 388:db85a09c27ef 141
rgrover1 388:db85a09c27ef 142 return BLE_ERROR_NONE;
rgrover1 388:db85a09c27ef 143 }
rgrover1 388:db85a09c27ef 144
rgrover1 388:db85a09c27ef 145 /**************************************************************************/
rgrover1 388:db85a09c27ef 146 /*!
rgrover1 388:db85a09c27ef 147 @brief Reads the value of a characteristic, based on the service
rgrover1 388:db85a09c27ef 148 and characteristic index fields
rgrover1 388:db85a09c27ef 149
rgrover1 388:db85a09c27ef 150 @param[in] attributeHandle
rgrover1 388:db85a09c27ef 151 The handle of the GattCharacteristic to read from
rgrover1 388:db85a09c27ef 152 @param[in] buffer
rgrover1 388:db85a09c27ef 153 Buffer to hold the the characteristic's value
rgrover1 388:db85a09c27ef 154 (raw byte array in LSB format)
rgrover1 388:db85a09c27ef 155 @param[in/out] len
rgrover1 388:db85a09c27ef 156 input: Length in bytes to be read.
rgrover1 388:db85a09c27ef 157 output: Total length of attribute value upon successful return.
rgrover1 388:db85a09c27ef 158
rgrover1 388:db85a09c27ef 159 @returns ble_error_t
rgrover1 388:db85a09c27ef 160
rgrover1 388:db85a09c27ef 161 @retval BLE_ERROR_NONE
rgrover1 388:db85a09c27ef 162 Everything executed properly
rgrover1 388:db85a09c27ef 163 */
rgrover1 388:db85a09c27ef 164 /**************************************************************************/
rgrover1 388:db85a09c27ef 165 ble_error_t nRF5xGattServer::read(GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP)
rgrover1 388:db85a09c27ef 166 {
rgrover1 388:db85a09c27ef 167 return read(BLE_CONN_HANDLE_INVALID, attributeHandle, buffer, lengthP);
rgrover1 388:db85a09c27ef 168 }
rgrover1 388:db85a09c27ef 169
rgrover1 388:db85a09c27ef 170 ble_error_t nRF5xGattServer::read(Gap::Handle_t connectionHandle, GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP)
rgrover1 388:db85a09c27ef 171 {
rgrover1 388:db85a09c27ef 172 ble_gatts_value_t value = {
rgrover1 388:db85a09c27ef 173 .len = *lengthP,
rgrover1 388:db85a09c27ef 174 .offset = 0,
rgrover1 388:db85a09c27ef 175 .p_value = buffer,
rgrover1 388:db85a09c27ef 176 };
rgrover1 388:db85a09c27ef 177
rgrover1 388:db85a09c27ef 178 ASSERT( ERROR_NONE ==
rgrover1 388:db85a09c27ef 179 sd_ble_gatts_value_get(connectionHandle, attributeHandle, &value),
rgrover1 388:db85a09c27ef 180 BLE_ERROR_PARAM_OUT_OF_RANGE);
rgrover1 388:db85a09c27ef 181 *lengthP = value.len;
rgrover1 388:db85a09c27ef 182
rgrover1 388:db85a09c27ef 183 return BLE_ERROR_NONE;
rgrover1 388:db85a09c27ef 184 }
rgrover1 388:db85a09c27ef 185
rgrover1 388:db85a09c27ef 186 /**************************************************************************/
rgrover1 388:db85a09c27ef 187 /*!
rgrover1 388:db85a09c27ef 188 @brief Updates the value of a characteristic, based on the service
rgrover1 388:db85a09c27ef 189 and characteristic index fields
rgrover1 388:db85a09c27ef 190
rgrover1 388:db85a09c27ef 191 @param[in] charHandle
rgrover1 388:db85a09c27ef 192 The handle of the GattCharacteristic to write to
rgrover1 388:db85a09c27ef 193 @param[in] buffer
rgrover1 388:db85a09c27ef 194 Data to use when updating the characteristic's value
rgrover1 388:db85a09c27ef 195 (raw byte array in LSB format)
rgrover1 388:db85a09c27ef 196 @param[in] len
rgrover1 388:db85a09c27ef 197 The number of bytes in buffer
rgrover1 388:db85a09c27ef 198
rgrover1 388:db85a09c27ef 199 @returns ble_error_t
rgrover1 388:db85a09c27ef 200
rgrover1 388:db85a09c27ef 201 @retval BLE_ERROR_NONE
rgrover1 388:db85a09c27ef 202 Everything executed properly
rgrover1 388:db85a09c27ef 203 */
rgrover1 388:db85a09c27ef 204 /**************************************************************************/
rgrover1 388:db85a09c27ef 205 ble_error_t nRF5xGattServer::write(GattAttribute::Handle_t attributeHandle, const uint8_t buffer[], uint16_t len, bool localOnly)
rgrover1 388:db85a09c27ef 206 {
rgrover1 388:db85a09c27ef 207 return write(BLE_CONN_HANDLE_INVALID, attributeHandle, buffer, len, localOnly);
rgrover1 388:db85a09c27ef 208 }
rgrover1 388:db85a09c27ef 209
rgrover1 388:db85a09c27ef 210 ble_error_t nRF5xGattServer::write(Gap::Handle_t connectionHandle, GattAttribute::Handle_t attributeHandle, const uint8_t buffer[], uint16_t len, bool localOnly)
rgrover1 388:db85a09c27ef 211 {
rgrover1 388:db85a09c27ef 212 ble_error_t returnValue = BLE_ERROR_NONE;
rgrover1 388:db85a09c27ef 213
rgrover1 388:db85a09c27ef 214 ble_gatts_value_t value = {
rgrover1 388:db85a09c27ef 215 .len = len,
rgrover1 388:db85a09c27ef 216 .offset = 0,
rgrover1 388:db85a09c27ef 217 .p_value = const_cast<uint8_t *>(buffer),
rgrover1 388:db85a09c27ef 218 };
rgrover1 388:db85a09c27ef 219
rgrover1 388:db85a09c27ef 220 if (localOnly) {
rgrover1 388:db85a09c27ef 221 /* Only update locally regardless of notify/indicate */
rgrover1 388:db85a09c27ef 222 ASSERT_INT( ERROR_NONE,
rgrover1 388:db85a09c27ef 223 sd_ble_gatts_value_set(connectionHandle, attributeHandle, &value),
rgrover1 388:db85a09c27ef 224 BLE_ERROR_PARAM_OUT_OF_RANGE );
rgrover1 388:db85a09c27ef 225 return BLE_ERROR_NONE;
rgrover1 388:db85a09c27ef 226 }
rgrover1 388:db85a09c27ef 227
rgrover1 388:db85a09c27ef 228 int characteristicIndex = resolveValueHandleToCharIndex(attributeHandle);
rgrover1 388:db85a09c27ef 229 if ((characteristicIndex != -1) &&
rgrover1 445:8328a7d1eac2 230 (p_characteristics[characteristicIndex]->getProperties() & (GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY))) {
rgrover1 388:db85a09c27ef 231 /* HVX update for the characteristic value */
rgrover1 388:db85a09c27ef 232 ble_gatts_hvx_params_t hvx_params;
rgrover1 388:db85a09c27ef 233
rgrover1 388:db85a09c27ef 234 hvx_params.handle = attributeHandle;
rgrover1 388:db85a09c27ef 235 hvx_params.type =
rgrover1 388:db85a09c27ef 236 (p_characteristics[characteristicIndex]->getProperties() & GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) ? BLE_GATT_HVX_NOTIFICATION : BLE_GATT_HVX_INDICATION;
rgrover1 388:db85a09c27ef 237 hvx_params.offset = 0;
rgrover1 388:db85a09c27ef 238 hvx_params.p_data = const_cast<uint8_t *>(buffer);
rgrover1 388:db85a09c27ef 239 hvx_params.p_len = &len;
rgrover1 441:b52f5b70e62a 240
rgrover1 445:8328a7d1eac2 241 if (connectionHandle == BLE_CONN_HANDLE_INVALID) { /* use the default connection handle if the caller hasn't specified a valid connectionHandle. */
rgrover1 445:8328a7d1eac2 242 connectionHandle = nRF5xGap::getInstance().getConnectionHandle();
rgrover1 445:8328a7d1eac2 243 }
rgrover1 445:8328a7d1eac2 244 error_t error = (error_t) sd_ble_gatts_hvx(connectionHandle, &hvx_params);
rgrover1 445:8328a7d1eac2 245 if (error != ERROR_NONE) {
rgrover1 445:8328a7d1eac2 246 switch (error) {
rgrover1 445:8328a7d1eac2 247 case ERROR_BLE_NO_TX_BUFFERS: /* Notifications consume application buffers. The return value can be used for resending notifications. */
rgrover1 445:8328a7d1eac2 248 case ERROR_BUSY:
rgrover1 445:8328a7d1eac2 249 returnValue = BLE_STACK_BUSY;
rgrover1 445:8328a7d1eac2 250 break;
rgrover1 388:db85a09c27ef 251
rgrover1 445:8328a7d1eac2 252 case ERROR_INVALID_STATE:
rgrover1 445:8328a7d1eac2 253 case ERROR_BLEGATTS_SYS_ATTR_MISSING:
rgrover1 445:8328a7d1eac2 254 returnValue = BLE_ERROR_INVALID_STATE;
rgrover1 445:8328a7d1eac2 255 break;
rgrover1 388:db85a09c27ef 256
rgrover1 445:8328a7d1eac2 257 default :
rgrover1 445:8328a7d1eac2 258 ASSERT_INT( ERROR_NONE,
rgrover1 445:8328a7d1eac2 259 sd_ble_gatts_value_set(connectionHandle, attributeHandle, &value),
rgrover1 445:8328a7d1eac2 260 BLE_ERROR_PARAM_OUT_OF_RANGE );
rgrover1 445:8328a7d1eac2 261
rgrover1 445:8328a7d1eac2 262 /* Notifications consume application buffers. The return value can
rgrover1 445:8328a7d1eac2 263 * be used for resending notifications. */
rgrover1 445:8328a7d1eac2 264 returnValue = BLE_STACK_BUSY;
rgrover1 445:8328a7d1eac2 265 break;
rgrover1 445:8328a7d1eac2 266 }
rgrover1 388:db85a09c27ef 267 }
rgrover1 388:db85a09c27ef 268 } else {
rgrover1 445:8328a7d1eac2 269 returnValue = BLE_ERROR_INVALID_STATE; // if assert is not used
rgrover1 388:db85a09c27ef 270 ASSERT_INT( ERROR_NONE,
rgrover1 388:db85a09c27ef 271 sd_ble_gatts_value_set(connectionHandle, attributeHandle, &value),
rgrover1 388:db85a09c27ef 272 BLE_ERROR_PARAM_OUT_OF_RANGE );
rgrover1 388:db85a09c27ef 273 }
rgrover1 388:db85a09c27ef 274
rgrover1 388:db85a09c27ef 275 return returnValue;
rgrover1 388:db85a09c27ef 276 }
rgrover1 388:db85a09c27ef 277
rgrover1 388:db85a09c27ef 278 ble_error_t nRF5xGattServer::areUpdatesEnabled(const GattCharacteristic &characteristic, bool *enabledP)
rgrover1 388:db85a09c27ef 279 {
rgrover1 388:db85a09c27ef 280 /* Forward the call with the default connection handle. */
rgrover1 388:db85a09c27ef 281 return areUpdatesEnabled(nRF5xGap::getInstance().getConnectionHandle(), characteristic, enabledP);
rgrover1 388:db85a09c27ef 282 }
rgrover1 388:db85a09c27ef 283
rgrover1 388:db85a09c27ef 284 ble_error_t nRF5xGattServer::areUpdatesEnabled(Gap::Handle_t connectionHandle, const GattCharacteristic &characteristic, bool *enabledP)
rgrover1 388:db85a09c27ef 285 {
rgrover1 388:db85a09c27ef 286 int characteristicIndex = resolveValueHandleToCharIndex(characteristic.getValueHandle());
rgrover1 388:db85a09c27ef 287 if (characteristicIndex == -1) {
rgrover1 388:db85a09c27ef 288 return BLE_ERROR_INVALID_PARAM;
rgrover1 388:db85a09c27ef 289 }
rgrover1 388:db85a09c27ef 290
rgrover1 388:db85a09c27ef 291 /* Read the cccd value from the GATT server. */
rgrover1 388:db85a09c27ef 292 GattAttribute::Handle_t cccdHandle = nrfCharacteristicHandles[characteristicIndex].cccd_handle;
rgrover1 388:db85a09c27ef 293 uint16_t cccdValue;
rgrover1 388:db85a09c27ef 294 uint16_t length = sizeof(cccdValue);
rgrover1 388:db85a09c27ef 295 ble_error_t rc = read(connectionHandle, cccdHandle, reinterpret_cast<uint8_t *>(&cccdValue), &length);
rgrover1 388:db85a09c27ef 296 if (rc != BLE_ERROR_NONE) {
rgrover1 388:db85a09c27ef 297 return rc;
rgrover1 388:db85a09c27ef 298 }
rgrover1 388:db85a09c27ef 299 if (length != sizeof(cccdValue)) {
rgrover1 388:db85a09c27ef 300 return BLE_ERROR_INVALID_STATE;
rgrover1 388:db85a09c27ef 301 }
rgrover1 388:db85a09c27ef 302
rgrover1 388:db85a09c27ef 303 /* Check for NOTFICATION or INDICATION in CCCD. */
rgrover1 388:db85a09c27ef 304 if ((cccdValue & BLE_GATT_HVX_NOTIFICATION) || (cccdValue & BLE_GATT_HVX_INDICATION)) {
rgrover1 388:db85a09c27ef 305 *enabledP = true;
rgrover1 388:db85a09c27ef 306 }
rgrover1 388:db85a09c27ef 307
rgrover1 388:db85a09c27ef 308 return BLE_ERROR_NONE;
rgrover1 388:db85a09c27ef 309 }
rgrover1 388:db85a09c27ef 310
rgrover1 388:db85a09c27ef 311 /**************************************************************************/
rgrover1 388:db85a09c27ef 312 /*!
rgrover1 388:db85a09c27ef 313 @brief Callback handler for events getting pushed up from the SD
rgrover1 388:db85a09c27ef 314 */
rgrover1 388:db85a09c27ef 315 /**************************************************************************/
rgrover1 388:db85a09c27ef 316 void nRF5xGattServer::hwCallback(ble_evt_t *p_ble_evt)
rgrover1 388:db85a09c27ef 317 {
rgrover1 388:db85a09c27ef 318 GattAttribute::Handle_t handle_value;
rgrover1 388:db85a09c27ef 319 GattServerEvents::gattEvent_t eventType;
rgrover1 388:db85a09c27ef 320 const ble_gatts_evt_t *gattsEventP = &p_ble_evt->evt.gatts_evt;
rgrover1 388:db85a09c27ef 321
rgrover1 388:db85a09c27ef 322 switch (p_ble_evt->header.evt_id) {
rgrover1 388:db85a09c27ef 323 case BLE_GATTS_EVT_WRITE: {
rgrover1 388:db85a09c27ef 324 /* There are 2 use case here: Values being updated & CCCD (indicate/notify) enabled */
rgrover1 388:db85a09c27ef 325
rgrover1 388:db85a09c27ef 326 /* 1.) Handle CCCD changes */
rgrover1 388:db85a09c27ef 327 handle_value = gattsEventP->params.write.handle;
rgrover1 388:db85a09c27ef 328 int characteristicIndex = resolveCCCDHandleToCharIndex(handle_value);
rgrover1 388:db85a09c27ef 329 if ((characteristicIndex != -1) &&
rgrover1 388:db85a09c27ef 330 (p_characteristics[characteristicIndex]->getProperties() &
rgrover1 388:db85a09c27ef 331 (GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY))) {
rgrover1 388:db85a09c27ef 332
rgrover1 388:db85a09c27ef 333 uint16_t cccd_value = (gattsEventP->params.write.data[1] << 8) | gattsEventP->params.write.data[0]; /* Little Endian but M0 may be mis-aligned */
rgrover1 388:db85a09c27ef 334
rgrover1 388:db85a09c27ef 335 if (((p_characteristics[characteristicIndex]->getProperties() & GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE) && (cccd_value & BLE_GATT_HVX_INDICATION)) ||
rgrover1 388:db85a09c27ef 336 ((p_characteristics[characteristicIndex]->getProperties() & GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) && (cccd_value & BLE_GATT_HVX_NOTIFICATION))) {
rgrover1 388:db85a09c27ef 337 eventType = GattServerEvents::GATT_EVENT_UPDATES_ENABLED;
rgrover1 388:db85a09c27ef 338 } else {
rgrover1 388:db85a09c27ef 339 eventType = GattServerEvents::GATT_EVENT_UPDATES_DISABLED;
rgrover1 388:db85a09c27ef 340 }
rgrover1 388:db85a09c27ef 341
rgrover1 388:db85a09c27ef 342 handleEvent(eventType, p_characteristics[characteristicIndex]->getValueHandle());
rgrover1 388:db85a09c27ef 343 return;
rgrover1 388:db85a09c27ef 344 }
rgrover1 388:db85a09c27ef 345
rgrover1 388:db85a09c27ef 346 /* 2.) Changes to the characteristic value will be handled with other events below */
rgrover1 388:db85a09c27ef 347 eventType = GattServerEvents::GATT_EVENT_DATA_WRITTEN;
rgrover1 388:db85a09c27ef 348 }
rgrover1 388:db85a09c27ef 349 break;
rgrover1 388:db85a09c27ef 350
rgrover1 388:db85a09c27ef 351 case BLE_GATTS_EVT_HVC:
rgrover1 388:db85a09c27ef 352 /* Indication confirmation received */
rgrover1 388:db85a09c27ef 353 eventType = GattServerEvents::GATT_EVENT_CONFIRMATION_RECEIVED;
rgrover1 388:db85a09c27ef 354 handle_value = gattsEventP->params.hvc.handle;
rgrover1 388:db85a09c27ef 355 break;
rgrover1 388:db85a09c27ef 356
rgrover1 388:db85a09c27ef 357 case BLE_EVT_TX_COMPLETE: {
rgrover1 388:db85a09c27ef 358 handleDataSentEvent(p_ble_evt->evt.common_evt.params.tx_complete.count);
rgrover1 388:db85a09c27ef 359 return;
rgrover1 388:db85a09c27ef 360 }
rgrover1 388:db85a09c27ef 361
rgrover1 388:db85a09c27ef 362 case BLE_GATTS_EVT_SYS_ATTR_MISSING:
rgrover1 388:db85a09c27ef 363 sd_ble_gatts_sys_attr_set(gattsEventP->conn_handle, NULL, 0, 0);
rgrover1 388:db85a09c27ef 364 return;
rgrover1 388:db85a09c27ef 365
rgrover1 388:db85a09c27ef 366 case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
rgrover1 388:db85a09c27ef 367 switch (gattsEventP->params.authorize_request.type) {
rgrover1 388:db85a09c27ef 368 case BLE_GATTS_AUTHORIZE_TYPE_READ:
rgrover1 388:db85a09c27ef 369 eventType = GattServerEvents::GATT_EVENT_READ_AUTHORIZATION_REQ;
rgrover1 388:db85a09c27ef 370 handle_value = gattsEventP->params.authorize_request.request.read.handle;
rgrover1 388:db85a09c27ef 371 break;
rgrover1 388:db85a09c27ef 372 case BLE_GATTS_AUTHORIZE_TYPE_WRITE:
rgrover1 388:db85a09c27ef 373 eventType = GattServerEvents::GATT_EVENT_WRITE_AUTHORIZATION_REQ;
rgrover1 388:db85a09c27ef 374 handle_value = gattsEventP->params.authorize_request.request.write.handle;
rgrover1 388:db85a09c27ef 375 break;
rgrover1 388:db85a09c27ef 376 default:
rgrover1 388:db85a09c27ef 377 return;
rgrover1 388:db85a09c27ef 378 }
rgrover1 388:db85a09c27ef 379 break;
rgrover1 388:db85a09c27ef 380
rgrover1 388:db85a09c27ef 381 default:
rgrover1 388:db85a09c27ef 382 return;
rgrover1 388:db85a09c27ef 383 }
rgrover1 388:db85a09c27ef 384
rgrover1 388:db85a09c27ef 385 int characteristicIndex = resolveValueHandleToCharIndex(handle_value);
rgrover1 388:db85a09c27ef 386 if (characteristicIndex == -1) {
rgrover1 388:db85a09c27ef 387 return;
rgrover1 388:db85a09c27ef 388 }
rgrover1 388:db85a09c27ef 389
rgrover1 388:db85a09c27ef 390 /* Find index (charHandle) in the pool */
rgrover1 388:db85a09c27ef 391 switch (eventType) {
rgrover1 388:db85a09c27ef 392 case GattServerEvents::GATT_EVENT_DATA_WRITTEN: {
rgrover1 388:db85a09c27ef 393 GattWriteCallbackParams cbParams = {
rgrover1 430:db7edc9ad0bc 394 .connHandle = gattsEventP->conn_handle,
rgrover1 430:db7edc9ad0bc 395 .handle = handle_value,
rgrover1 430:db7edc9ad0bc 396 .writeOp = static_cast<GattWriteCallbackParams::WriteOp_t>(gattsEventP->params.write.op),
rgrover1 430:db7edc9ad0bc 397 .offset = gattsEventP->params.write.offset,
rgrover1 430:db7edc9ad0bc 398 .len = gattsEventP->params.write.len,
rgrover1 430:db7edc9ad0bc 399 .data = gattsEventP->params.write.data
rgrover1 388:db85a09c27ef 400 };
rgrover1 388:db85a09c27ef 401 handleDataWrittenEvent(&cbParams);
rgrover1 388:db85a09c27ef 402 break;
rgrover1 388:db85a09c27ef 403 }
rgrover1 388:db85a09c27ef 404 case GattServerEvents::GATT_EVENT_WRITE_AUTHORIZATION_REQ: {
rgrover1 388:db85a09c27ef 405 GattWriteAuthCallbackParams cbParams = {
rgrover1 430:db7edc9ad0bc 406 .connHandle = gattsEventP->conn_handle,
rgrover1 430:db7edc9ad0bc 407 .handle = handle_value,
rgrover1 430:db7edc9ad0bc 408 .offset = gattsEventP->params.authorize_request.request.write.offset,
rgrover1 430:db7edc9ad0bc 409 .len = gattsEventP->params.authorize_request.request.write.len,
rgrover1 430:db7edc9ad0bc 410 .data = gattsEventP->params.authorize_request.request.write.data,
rgrover1 445:8328a7d1eac2 411 .authorizationReply = AUTH_CALLBACK_REPLY_SUCCESS /* the callback handler must leave this member
rgrover1 445:8328a7d1eac2 412 * set to AUTH_CALLBACK_REPLY_SUCCESS if the client
rgrover1 445:8328a7d1eac2 413 * request is to proceed. */
rgrover1 388:db85a09c27ef 414 };
rgrover1 388:db85a09c27ef 415 ble_gatts_rw_authorize_reply_params_t reply = {
rgrover1 388:db85a09c27ef 416 .type = BLE_GATTS_AUTHORIZE_TYPE_WRITE,
rgrover1 388:db85a09c27ef 417 .params = {
rgrover1 388:db85a09c27ef 418 .write = {
rgrover1 388:db85a09c27ef 419 .gatt_status = p_characteristics[characteristicIndex]->authorizeWrite(&cbParams)
rgrover1 388:db85a09c27ef 420 }
rgrover1 388:db85a09c27ef 421 }
rgrover1 388:db85a09c27ef 422 };
rgrover1 388:db85a09c27ef 423 sd_ble_gatts_rw_authorize_reply(gattsEventP->conn_handle, &reply);
rgrover1 388:db85a09c27ef 424
rgrover1 388:db85a09c27ef 425 /*
rgrover1 388:db85a09c27ef 426 * If write-authorization is enabled for a characteristic,
rgrover1 388:db85a09c27ef 427 * AUTHORIZATION_REQ event (if replied with true) is *not*
rgrover1 388:db85a09c27ef 428 * followed by another DATA_WRITTEN event; so we still need
rgrover1 388:db85a09c27ef 429 * to invoke handleDataWritten(), much the same as we would
rgrover1 388:db85a09c27ef 430 * have done if write-authorization had not been enabled.
rgrover1 388:db85a09c27ef 431 */
rgrover1 388:db85a09c27ef 432 if (reply.params.write.gatt_status == BLE_GATT_STATUS_SUCCESS) {
rgrover1 388:db85a09c27ef 433 GattWriteCallbackParams cbParams = {
rgrover1 430:db7edc9ad0bc 434 .connHandle = gattsEventP->conn_handle,
rgrover1 430:db7edc9ad0bc 435 .handle = handle_value,
rgrover1 430:db7edc9ad0bc 436 .writeOp = static_cast<GattWriteCallbackParams::WriteOp_t>(gattsEventP->params.authorize_request.request.write.op),
rgrover1 430:db7edc9ad0bc 437 .offset = gattsEventP->params.authorize_request.request.write.offset,
rgrover1 430:db7edc9ad0bc 438 .len = gattsEventP->params.authorize_request.request.write.len,
rgrover1 430:db7edc9ad0bc 439 .data = gattsEventP->params.authorize_request.request.write.data,
rgrover1 388:db85a09c27ef 440 };
rgrover1 388:db85a09c27ef 441 handleDataWrittenEvent(&cbParams);
rgrover1 388:db85a09c27ef 442 }
rgrover1 388:db85a09c27ef 443 break;
rgrover1 388:db85a09c27ef 444 }
rgrover1 388:db85a09c27ef 445 case GattServerEvents::GATT_EVENT_READ_AUTHORIZATION_REQ: {
rgrover1 388:db85a09c27ef 446 GattReadAuthCallbackParams cbParams = {
rgrover1 445:8328a7d1eac2 447 .connHandle = gattsEventP->conn_handle,
rgrover1 445:8328a7d1eac2 448 .handle = handle_value,
rgrover1 445:8328a7d1eac2 449 .offset = gattsEventP->params.authorize_request.request.read.offset,
rgrover1 445:8328a7d1eac2 450 .len = 0,
rgrover1 445:8328a7d1eac2 451 .data = NULL,
rgrover1 445:8328a7d1eac2 452 .authorizationReply = AUTH_CALLBACK_REPLY_SUCCESS /* the callback handler must leave this member
rgrover1 445:8328a7d1eac2 453 * set to AUTH_CALLBACK_REPLY_SUCCESS if the client
rgrover1 445:8328a7d1eac2 454 * request is to proceed. */
rgrover1 388:db85a09c27ef 455 };
rgrover1 388:db85a09c27ef 456
rgrover1 388:db85a09c27ef 457 ble_gatts_rw_authorize_reply_params_t reply = {
rgrover1 388:db85a09c27ef 458 .type = BLE_GATTS_AUTHORIZE_TYPE_READ,
rgrover1 388:db85a09c27ef 459 .params = {
rgrover1 388:db85a09c27ef 460 .read = {
rgrover1 388:db85a09c27ef 461 .gatt_status = p_characteristics[characteristicIndex]->authorizeRead(&cbParams)
rgrover1 388:db85a09c27ef 462 }
rgrover1 388:db85a09c27ef 463 }
rgrover1 388:db85a09c27ef 464 };
rgrover1 388:db85a09c27ef 465
rgrover1 388:db85a09c27ef 466 if (cbParams.authorizationReply == BLE_GATT_STATUS_SUCCESS) {
rgrover1 388:db85a09c27ef 467 if (cbParams.data != NULL) {
rgrover1 388:db85a09c27ef 468 reply.params.read.update = 1;
rgrover1 388:db85a09c27ef 469 reply.params.read.offset = cbParams.offset;
rgrover1 388:db85a09c27ef 470 reply.params.read.len = cbParams.len;
rgrover1 388:db85a09c27ef 471 reply.params.read.p_data = cbParams.data;
rgrover1 388:db85a09c27ef 472 }
rgrover1 388:db85a09c27ef 473 }
rgrover1 388:db85a09c27ef 474
rgrover1 388:db85a09c27ef 475 sd_ble_gatts_rw_authorize_reply(gattsEventP->conn_handle, &reply);
rgrover1 388:db85a09c27ef 476 break;
rgrover1 388:db85a09c27ef 477 }
rgrover1 388:db85a09c27ef 478
rgrover1 388:db85a09c27ef 479 default:
rgrover1 388:db85a09c27ef 480 handleEvent(eventType, handle_value);
rgrover1 388:db85a09c27ef 481 break;
rgrover1 388:db85a09c27ef 482 }
rgrover1 388:db85a09c27ef 483 }