Seeed
To get started with Seeed Tiny BLE, include detecting motion, button and battery level.
Dependencies: BLE_API eMPL_MPU6050 mbed nRF51822
Diff: nRF51822/nRF51GattServer.cpp
- Revision:
- 3:24e365bd1b97
- Parent:
- 2:b61ddbb8528e
--- a/nRF51822/nRF51GattServer.cpp Thu Nov 05 02:46:37 2015 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,400 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "nRF51GattServer.h"
-#include "mbed.h"
-
-#include "common/common.h"
-#include "btle/custom/custom_helper.h"
-
-#include "nRF51Gap.h"
-
-/**************************************************************************/
-/*!
- @brief Adds a new service to the GATT table on the peripheral
-
- @returns ble_error_t
-
- @retval BLE_ERROR_NONE
- Everything executed properly
-
- @section EXAMPLE
-
- @code
-
- @endcode
-*/
-/**************************************************************************/
-ble_error_t nRF51GattServer::addService(GattService &service)
-{
- /* ToDo: Make sure we don't overflow the array, etc. */
- /* ToDo: Make sure this service UUID doesn't already exist (?) */
- /* ToDo: Basic validation */
-
- /* Add the service to the nRF51 */
- ble_uuid_t nordicUUID;
- nordicUUID = custom_convert_to_nordic_uuid(service.getUUID());
-
- uint16_t serviceHandle;
- ASSERT( ERROR_NONE ==
- sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
- &nordicUUID,
- &serviceHandle),
- BLE_ERROR_PARAM_OUT_OF_RANGE );
- service.setHandle(serviceHandle);
-
- /* Add characteristics to the service */
- for (uint8_t i = 0; i < service.getCharacteristicCount(); i++) {
- GattCharacteristic *p_char = service.getCharacteristic(i);
-
- /* Skip any incompletely defined, read-only characteristics. */
- if ((p_char->getValueAttribute().getValuePtr() == NULL) &&
- (p_char->getValueAttribute().getInitialLength() == 0) &&
- (p_char->getProperties() == GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ)) {
- continue;
- }
-
- nordicUUID = custom_convert_to_nordic_uuid(p_char->getValueAttribute().getUUID());
-
- ASSERT ( ERROR_NONE ==
- custom_add_in_characteristic(BLE_GATT_HANDLE_INVALID,
- &nordicUUID,
- p_char->getProperties(),
- p_char->getValueAttribute().getValuePtr(),
- p_char->getValueAttribute().getInitialLength(),
- p_char->getValueAttribute().getMaxLength(),
- p_char->isReadAuthorizationEnabled(),
- p_char->isWriteAuthorizationEnabled(),
- &nrfCharacteristicHandles[characteristicCount]),
- BLE_ERROR_PARAM_OUT_OF_RANGE );
-
- /* Update the characteristic handle */
- uint16_t charHandle = characteristicCount;
- p_characteristics[characteristicCount++] = p_char;
-
- p_char->getValueAttribute().setHandle(charHandle);
-
- /* Add optional descriptors if any */
- /* ToDo: Make sure we don't overflow the array */
- for (uint8_t j = 0; j < p_char->getDescriptorCount(); j++) {
- GattAttribute *p_desc = p_char->getDescriptor(j);
-
- nordicUUID = custom_convert_to_nordic_uuid(p_desc->getUUID());
-
- ASSERT ( ERROR_NONE ==
- custom_add_in_descriptor(BLE_GATT_HANDLE_INVALID,
- &nordicUUID,
- p_desc->getValuePtr(),
- p_desc->getInitialLength(),
- p_desc->getMaxLength(),
- &nrfDescriptorHandles[descriptorCount]),
- BLE_ERROR_PARAM_OUT_OF_RANGE );
-
- uint16_t descHandle = descriptorCount;
- p_descriptors[descriptorCount++] = p_desc;
- p_desc->setHandle(descHandle);
- }
- }
-
- serviceCount++;
-
- return BLE_ERROR_NONE;
-}
-
-/**************************************************************************/
-/*!
- @brief Reads the value of a characteristic, based on the service
- and characteristic index fields
-
- @param[in] charHandle
- The handle of the GattCharacteristic to read from
- @param[in] buffer
- Buffer to hold the the characteristic's value
- (raw byte array in LSB format)
- @param[in] len
- The number of bytes read into the buffer
-
- @returns ble_error_t
-
- @retval BLE_ERROR_NONE
- Everything executed properly
-
- @section EXAMPLE
-
- @code
-
- @endcode
-*/
-/**************************************************************************/
-ble_error_t nRF51GattServer::readValue(GattAttribute::Handle_t charHandle, uint8_t buffer[], uint16_t *const lengthP)
-{
- ASSERT( ERROR_NONE ==
- sd_ble_gatts_value_get(nrfCharacteristicHandles[charHandle].value_handle, 0, lengthP, buffer),
- BLE_ERROR_PARAM_OUT_OF_RANGE);
-
- return BLE_ERROR_NONE;
-}
-
-/**************************************************************************/
-/*!
- @brief Updates the value of a characteristic, based on the service
- and characteristic index fields
-
- @param[in] charHandle
- The handle of the GattCharacteristic to write to
- @param[in] buffer
- Data to use when updating the characteristic's value
- (raw byte array in LSB format)
- @param[in] len
- The number of bytes in buffer
-
- @returns ble_error_t
-
- @retval BLE_ERROR_NONE
- Everything executed properly
-
- @section EXAMPLE
-
- @code
-
- @endcode
-*/
-/**************************************************************************/
-ble_error_t nRF51GattServer::updateValue(GattAttribute::Handle_t charHandle, const uint8_t buffer[], uint16_t len, bool localOnly)
-{
- uint16_t gapConnectionHandle = nRF51Gap::getInstance().getConnectionHandle();
- ble_error_t returnValue = BLE_ERROR_NONE;
-
- if (localOnly) {
- /* Only update locally regardless of notify/indicate */
- ASSERT_INT( ERROR_NONE,
- sd_ble_gatts_value_set(nrfCharacteristicHandles[charHandle].value_handle, 0, &len, buffer),
- BLE_ERROR_PARAM_OUT_OF_RANGE );
- return BLE_ERROR_NONE;
- }
-
- if ((p_characteristics[charHandle]->getProperties() &
- (GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE |
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)) &&
- (gapConnectionHandle != BLE_CONN_HANDLE_INVALID)) {
- /* HVX update for the characteristic value */
- ble_gatts_hvx_params_t hvx_params;
-
- hvx_params.handle = nrfCharacteristicHandles[charHandle].value_handle;
- hvx_params.type =
- (p_characteristics[charHandle]->getProperties() &
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) ?
- BLE_GATT_HVX_NOTIFICATION : BLE_GATT_HVX_INDICATION;
- hvx_params.offset = 0;
- hvx_params.p_data = const_cast<uint8_t *>(buffer);
- hvx_params.p_len = &len;
-
- error_t error = (error_t) sd_ble_gatts_hvx(gapConnectionHandle, &hvx_params);
-
- /* ERROR_INVALID_STATE, ERROR_BUSY, ERROR_GATTS_SYS_ATTR_MISSING and
- *ERROR_NO_TX_BUFFERS the ATT table has been updated. */
- if ((error != ERROR_NONE) && (error != ERROR_INVALID_STATE) &&
- (error != ERROR_BLE_NO_TX_BUFFERS) && (error != ERROR_BUSY) &&
- (error != ERROR_BLEGATTS_SYS_ATTR_MISSING)) {
- ASSERT_INT( ERROR_NONE,
- sd_ble_gatts_value_set(nrfCharacteristicHandles[charHandle].value_handle, 0, &len, buffer),
- BLE_ERROR_PARAM_OUT_OF_RANGE );
- }
-
- /* Notifications consume application buffers. The return value can
- be used for resending notifications.
- */
- if (error != ERROR_NONE) {
- returnValue = BLE_STACK_BUSY;
- }
- } else {
- ASSERT_INT( ERROR_NONE,
- sd_ble_gatts_value_set(nrfCharacteristicHandles[charHandle].value_handle, 0, &len, buffer),
- BLE_ERROR_PARAM_OUT_OF_RANGE );
- }
-
- return returnValue;
-}
-
-/**************************************************************************/
-/*!
- @brief Callback handler for events getting pushed up from the SD
-*/
-/**************************************************************************/
-void nRF51GattServer::hwCallback(ble_evt_t *p_ble_evt)
-{
- uint16_t handle_value;
- GattServerEvents::gattEvent_t eventType;
- const ble_gatts_evt_t *gattsEventP = &p_ble_evt->evt.gatts_evt;
-
- switch (p_ble_evt->header.evt_id) {
- case BLE_GATTS_EVT_WRITE:
- /* There are 2 use case here: Values being updated & CCCD (indicate/notify) enabled */
-
- /* 1.) Handle CCCD changes */
- handle_value = gattsEventP->params.write.handle;
- for (uint8_t i = 0; i<characteristicCount; i++) {
- if ((p_characteristics[i]->getProperties() & (GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)) &&
- (nrfCharacteristicHandles[i].cccd_handle == handle_value)) {
- uint16_t cccd_value =
- (gattsEventP->params.write.data[1] << 8) |
- gattsEventP->params.write.data[0]; /* Little Endian but M0 may be mis-aligned */
-
- if (((p_characteristics[i]->getProperties() & GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE) && (cccd_value & BLE_GATT_HVX_INDICATION)) ||
- ((p_characteristics[i]->getProperties() & GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) && (cccd_value & BLE_GATT_HVX_NOTIFICATION))) {
- eventType = GattServerEvents::GATT_EVENT_UPDATES_ENABLED;
- } else {
- eventType = GattServerEvents::GATT_EVENT_UPDATES_DISABLED;
- }
-
- handleEvent(eventType, i);
- return;
- }
- }
-
- /* 2.) Changes to the characteristic value will be handled with other events below */
- eventType = GattServerEvents::GATT_EVENT_DATA_WRITTEN;
- break;
-
- case BLE_GATTS_EVT_HVC:
- /* Indication confirmation received */
- eventType = GattServerEvents::GATT_EVENT_CONFIRMATION_RECEIVED;
- handle_value = gattsEventP->params.hvc.handle;
- break;
-
- case BLE_EVT_TX_COMPLETE: {
- handleDataSentEvent(p_ble_evt->evt.common_evt.params.tx_complete.count);
- return;
- }
-
- case BLE_GATTS_EVT_SYS_ATTR_MISSING:
- sd_ble_gatts_sys_attr_set(gattsEventP->conn_handle, NULL, 0);
- return;
-
- case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
- switch (gattsEventP->params.authorize_request.type) {
- case BLE_GATTS_AUTHORIZE_TYPE_READ:
- eventType = GattServerEvents::GATT_EVENT_READ_AUTHORIZATION_REQ;
- handle_value = gattsEventP->params.authorize_request.request.read.handle;
- break;
- case BLE_GATTS_AUTHORIZE_TYPE_WRITE:
- eventType = GattServerEvents::GATT_EVENT_WRITE_AUTHORIZATION_REQ;
- handle_value = gattsEventP->params.authorize_request.request.write.handle;
- break;
- default:
- return;
- }
- break;
-
- default:
- return;
- }
-
- /* Find index (charHandle) in the pool */
- for (uint8_t i = 0; i < characteristicCount; i++) {
- if (nrfCharacteristicHandles[i].value_handle == handle_value) {
- switch (eventType) {
- case GattServerEvents::GATT_EVENT_DATA_WRITTEN: {
- GattCharacteristicWriteCBParams cbParams = {
- .charHandle = i,
- .op = static_cast<GattCharacteristicWriteCBParams::Type>(gattsEventP->params.write.op),
- .offset = gattsEventP->params.write.offset,
- .len = gattsEventP->params.write.len,
- .data = gattsEventP->params.write.data
- };
- handleDataWrittenEvent(&cbParams);
- break;
- }
- case GattServerEvents::GATT_EVENT_WRITE_AUTHORIZATION_REQ: {
- GattCharacteristicWriteAuthCBParams cbParams = {
- .charHandle = i,
- .offset = gattsEventP->params.authorize_request.request.write.offset,
- .len = gattsEventP->params.authorize_request.request.write.len,
- .data = gattsEventP->params.authorize_request.request.write.data,
- };
- ble_gatts_rw_authorize_reply_params_t reply = {
- .type = BLE_GATTS_AUTHORIZE_TYPE_WRITE,
- .params = {
- .write = {
- .gatt_status = p_characteristics[i]->authorizeWrite(&cbParams)
- }
- }
- };
- sd_ble_gatts_rw_authorize_reply(gattsEventP->conn_handle, &reply);
-
- /*
- * If write-authorization is enabled for a characteristic,
- * AUTHORIZATION_REQ event (if replied with true) is *not*
- * followed by another DATA_WRITTEN event; so we still need
- * to invoke handleDataWritten(), much the same as we would
- * have done if write-authorization had not been enabled.
- */
- if (reply.params.write.gatt_status == BLE_GATT_STATUS_SUCCESS) {
- GattCharacteristicWriteCBParams cbParams = {
- .charHandle = i,
- .op = static_cast<GattCharacteristicWriteCBParams::Type>(gattsEventP->params.authorize_request.request.write.op),
- .offset = gattsEventP->params.authorize_request.request.write.offset,
- .len = gattsEventP->params.authorize_request.request.write.len,
- .data = gattsEventP->params.authorize_request.request.write.data,
- };
- handleDataWrittenEvent(&cbParams);
- }
- break;
- }
- case GattServerEvents::GATT_EVENT_READ_AUTHORIZATION_REQ: {
- GattCharacteristicReadAuthCBParams cbParams = {
- .charHandle = i,
- .offset = gattsEventP->params.authorize_request.request.read.offset,
- .len = 0,
- .data = NULL
- };
-
- ble_gatts_rw_authorize_reply_params_t reply = {
- .type = BLE_GATTS_AUTHORIZE_TYPE_READ,
- .params = {
- .read = {
- .gatt_status = p_characteristics[i]->authorizeRead(&cbParams)
- }
- }
- };
-
- if (cbParams.authorizationReply == BLE_GATT_STATUS_SUCCESS) {
- if (cbParams.data != NULL) {
- reply.params.read.update = 1;
- reply.params.read.offset = cbParams.offset;
- reply.params.read.len = cbParams.len;
- reply.params.read.p_data = cbParams.data;
- }
- }
-
- sd_ble_gatts_rw_authorize_reply(gattsEventP->conn_handle, &reply);
- break;
- }
-
- default:
- handleEvent(eventType, i);
- break;
- }
- }
- }
-}
-
-ble_error_t
-nRF51GattServer::initializeGATTDatabase(void)
-{
- /* Empty. Services are populated in the GattDatabase through addService(). */
- return BLE_ERROR_NONE;
-}
\ No newline at end of file