Diff: public/GattClient.h

Revision:

527:493185cebc03

Child:

540:1fb1e0b809eb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/public/GattClient.h	Fri Jun 19 15:52:07 2015 +0100
@@ -0,0 +1,104 @@
+/* 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.
+ */
+
+#ifndef __GATT_CLIENT_H__
+#define __GATT_CLIENT_H__
+
+#include "Gap.h"
+#include "GattAttribute.h"
+#include "ServiceDiscovery.h"
+
+#include "GattCallbackParamTypes.h"
+
+class GattClient {
+public:
+    typedef void (*ReadCallback_t)(const GattReadCallbackParams *params);
+
+    enum WriteOp_t {
+        GATT_OP_WRITE_REQ      = 0x01,  /**< Write Request. */
+        GATT_OP_WRITE_CMD      = 0x02,  /**< Write Command. */
+    };
+
+    typedef void (*WriteCallback_t)(const GattWriteCallbackParams *params);
+
+public:
+    /**
+     * Launch service discovery. Once launched, service discovery will remain
+     * active with callbacks being issued back into the application for matching
+     * services/characteristics. isActive() can be used to determine status; and
+     * a termination callback (if setup) will be invoked at the end. Service
+     * discovery can be terminated prematurely if needed using terminate().
+     *
+     * @param  connectionHandle
+     *           Handle for the connection with the peer.
+     * @param  sc
+     *           This is the application callback for matching service.
+     * @param  cc
+     *           This is the application callback for matching characteristic.
+     * @param  matchingServiceUUID
+     *           UUID based filter for specifying a service in which the application is
+     *           interested.
+     * @param  matchingCharacteristicUUIDIn
+     *           UUID based filter for specifying characteristic in which the application
+     *           is interested.
+     *
+     * @Note     Using wildcard values for both service-UUID and characteristic-
+     *           UUID will result in complete service discovery--callbacks being
+     *           called for every service and characteristic.
+     *
+     * @return
+     *           BLE_ERROR_NONE if service discovery is launched successfully; else an appropriate error.
+     */
+    virtual ble_error_t launchServiceDiscovery(Gap::Handle_t                               connectionHandle,
+                                               ServiceDiscovery::ServiceCallback_t         sc                           = NULL,
+                                               ServiceDiscovery::CharacteristicCallback_t  cc                           = NULL,
+                                               const UUID                                 &matchingServiceUUID          = UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN),
+                                               const UUID                                 &matchingCharacteristicUUIDIn = UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN)) = 0;
+
+    virtual void onServiceDiscoveryTermination(ServiceDiscovery::TerminationCallback_t callback) = 0;
+
+    /**
+     * Is service-discovery currently active?
+     */
+    virtual bool isServiceDiscoveryActive(void) const = 0;
+
+    /**
+     * Terminate an ongoing service-discovery. This should result in an
+     * invocation of the TerminationCallback if service-discovery is active.
+     */
+    virtual void terminateServiceDiscovery(void) = 0;
+
+    /* Initiate a Gatt Client read procedure by attribute-handle.*/
+    virtual ble_error_t read(Gap::Handle_t connHandle, GattAttribute::Handle_t attributeHandle, uint16_t offset) const = 0;
+
+    virtual ble_error_t write(GattClient::WriteOp_t    cmd,
+                              Gap::Handle_t            connHandle,
+                              GattAttribute::Handle_t  attributeHandle,
+                              size_t                   length,
+                              const uint8_t           *value) const = 0;
+
+protected:
+    GattClient() {
+        /* empty */
+    }
+
+private:
+    /* disallow copy and assignment */
+    GattClient(const GattClient &);
+    GattClient& operator=(const GattClient &);
+};
+
+#endif // ifndef __GATT_CLIENT_H__
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