Merge branch 'uuid' of https://github.com/jeremybrodt/BLE_API into jeremybrodt-uuid

This commit is contained in:
Rohit Grover 2015-02-26 14:31:59 +00:00
commit 1e6a9cbbff
2 changed files with 168 additions and 146 deletions

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@ -1,94 +1,108 @@
/* 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 <string.h>
#include "UUID.h"
UUID::UUID(ShortUUIDBytes_t shortUUID) : type(UUID_TYPE_SHORT), baseUUID(), shortUUID(shortUUID) {
/* empty */
}
/**************************************************************************/
/*!
@brief Creates a new 128-bit UUID
@note The UUID is a unique 128-bit (16 byte) ID used to identify
different service or characteristics on the BLE device.
@note When creating a UUID, the constructor will check if all bytes
except bytes 2/3 are equal to 0. If only bytes 2/3 have a
value, the UUID will be treated as a short/BLE UUID, and the
.type field will be set to UUID::UUID_TYPE_SHORT. If any
of the bytes outside byte 2/3 have a non-zero value, the UUID
will be considered a 128-bit ID, and .type will be assigned
as UUID::UUID_TYPE_LONG.
@param[in] uuid_base
The 128-bit (16-byte) UUID value. For 128-bit values,
assign all 16 bytes. For 16-bit values, assign the
16-bits to byte 2 and 3, and leave the rest of the bytes
as 0.
@section EXAMPLE
@code
// Create a short UUID (0x180F)
uint8_t shortID[16] = { 0, 0, 0x0F, 0x18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
UUID ble_uuid = UUID(shortID);
// ble_uuid.type = UUID_TYPE_SHORT
// ble_uuid.value = 0x180F
// Creeate a long UUID
uint8_t longID[16] = { 0x00, 0x11, 0x22, 0x33,
0x44, 0x55, 0x66, 0x77,
0x88, 0x99, 0xAA, 0xBB,
0xCC, 0xDD, 0xEE, 0xFF };
UUID custom_uuid = UUID(longID);
// custom_uuid.type = UUID_TYPE_LONG
// custom_uuid.value = 0x3322
// custom_uuid.base = 00 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
@endcode
*/
/**************************************************************************/
UUID::UUID(const LongUUIDBytes_t longUUID) : type(UUID_TYPE_SHORT), baseUUID(), shortUUID(0)
{
memcpy(baseUUID, longUUID, LENGTH_OF_LONG_UUID);
shortUUID = (uint16_t)((longUUID[2] << 8) | (longUUID[3]));
/* Check if this is a short of a long UUID */
unsigned index;
for (index = 0; index < LENGTH_OF_LONG_UUID; index++) {
if ((index == 2) || (index == 3)) {
continue; /* we should not consider bytes 2 and 3 because that's
* where the 16-bit relative UUID is placed. */
}
if (baseUUID[index] != 0) {
type = UUID_TYPE_LONG;
/* zero out the 16-bit part in the base; this will help equate long
* UUIDs when they differ only in this 16-bit relative part.*/
baseUUID[2] = 0;
baseUUID[3] = 0;
return;
}
}
}
/* 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 <string.h>
#include "UUID.h"
UUID::UUID(ShortUUIDBytes_t shortUUID) : type(UUID_TYPE_SHORT), baseUUID(), shortUUID(shortUUID) {
/* empty */
}
/**************************************************************************/
/*!
@brief Creates a new 128-bit UUID
@note The UUID is a unique 128-bit (16 byte) ID used to identify
different service or characteristics on the BLE device.
@note When creating a UUID, the constructor will check if all bytes
except bytes 2/3 are equal to 0. If only bytes 2/3 have a
value, the UUID will be treated as a short/BLE UUID, and the
.type field will be set to UUID::UUID_TYPE_SHORT. If any
of the bytes outside byte 2/3 have a non-zero value, the UUID
will be considered a 128-bit ID, and .type will be assigned
as UUID::UUID_TYPE_LONG.
@param[in] uuid_base
The 128-bit (16-byte) UUID value. For 128-bit values,
assign all 16 bytes. For 16-bit values, assign the
16-bits to byte 2 and 3, and leave the rest of the bytes
as 0.
@section EXAMPLE
@code
// Create a short UUID (0x180F)
uint8_t shortID[16] = { 0, 0, 0x0F, 0x18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
UUID ble_uuid = UUID(shortID);
// ble_uuid.type = UUID_TYPE_SHORT
// ble_uuid.value = 0x180F
// Creeate a long UUID
uint8_t longID[16] = { 0x00, 0x11, 0x22, 0x33,
0x44, 0x55, 0x66, 0x77,
0x88, 0x99, 0xAA, 0xBB,
0xCC, 0xDD, 0xEE, 0xFF };
UUID custom_uuid = UUID(longID);
// custom_uuid.type = UUID_TYPE_LONG
// custom_uuid.value = 0x3322
// custom_uuid.base = 00 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
@endcode
*/
/**************************************************************************/
UUID::UUID(const LongUUIDBytes_t longUUID) : type(UUID_TYPE_SHORT), baseUUID(), shortUUID(0)
{
memcpy(baseUUID, longUUID, LENGTH_OF_LONG_UUID);
shortUUID = (uint16_t)((longUUID[2] << 8) | (longUUID[3]));
/* Check if this is a short of a long UUID */
unsigned index;
for (index = 0; index < LENGTH_OF_LONG_UUID; index++) {
if ((index == 2) || (index == 3)) {
continue; /* we should not consider bytes 2 and 3 because that's
* where the 16-bit relative UUID is placed. */
}
if (baseUUID[index] != 0) {
type = UUID_TYPE_LONG;
/* zero out the 16-bit part in the base; this will help equate long
* UUIDs when they differ only in this 16-bit relative part.*/
baseUUID[2] = 0;
baseUUID[3] = 0;
return;
}
}
}
bool UUID::operator==(const UUID &other) const
{
if ((this->type == UUID_TYPE_SHORT) && (other.type == UUID_TYPE_SHORT) &&
(this->shortUUID == other.shortUUID)) {
return true;
}
if ((this->type == UUID_TYPE_LONG) && (other.type == UUID_TYPE_LONG) &&
(memcmp(this->baseUUID, other.baseUUID, LENGTH_OF_LONG_UUID) == 0)) {
return true;
}
return false;
}

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/* 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 __UUID_H__
#define __UUID_H__
#include "blecommon.h"
const unsigned LENGTH_OF_LONG_UUID = 16;
typedef uint16_t ShortUUIDBytes_t;
typedef uint8_t LongUUIDBytes_t[LENGTH_OF_LONG_UUID];
class UUID {
public:
enum {
UUID_TYPE_SHORT = 0, // Short BLE UUID
UUID_TYPE_LONG = 1 // Full 128-bit UUID
};
public:
UUID(const LongUUIDBytes_t);
UUID(ShortUUIDBytes_t);
public:
uint8_t shortOrLong(void) const {return type; }
const uint8_t *getBaseUUID(void) const {return baseUUID; }
ShortUUIDBytes_t getShortUUID(void) const {return shortUUID;}
private:
uint8_t type; // UUID_TYPE_SHORT or UUID_TYPE_LONG
LongUUIDBytes_t baseUUID; /* the base of the long UUID (if
* used). Note: bytes 12 and 13 (counting from LSB)
* are zeroed out to allow comparison with other long
* UUIDs which differ only in the 16-bit relative
* part.*/
ShortUUIDBytes_t shortUUID; // 16 bit uuid (byte 2-3 using with base)
};
#endif // ifndef __UUID_H__
/* 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 __UUID_H__
#define __UUID_H__
#include "blecommon.h"
const unsigned LENGTH_OF_LONG_UUID = 16;
typedef uint16_t ShortUUIDBytes_t;
typedef uint8_t LongUUIDBytes_t[LENGTH_OF_LONG_UUID];
class UUID {
public:
enum {
UUID_TYPE_SHORT = 0, // Short BLE UUID
UUID_TYPE_LONG = 1 // Full 128-bit UUID
};
public:
UUID(const LongUUIDBytes_t);
UUID(ShortUUIDBytes_t);
public:
uint8_t shortOrLong(void) const {return type; }
const uint8_t *getBaseUUID(void) const {
if (type == UUID_TYPE_SHORT) { return (const uint8_t*)&shortUUID; }
else { return baseUUID; }
}
ShortUUIDBytes_t getShortUUID(void) const {return shortUUID;}
uint8_t getLen(void) const {
return ((type == UUID_TYPE_SHORT) ? sizeof(ShortUUIDBytes_t) : LENGTH_OF_LONG_UUID);
}
bool operator== (const UUID&) const;
private:
uint8_t type; // UUID_TYPE_SHORT or UUID_TYPE_LONG
LongUUIDBytes_t baseUUID; /* the base of the long UUID (if
* used). Note: bytes 12 and 13 (counting from LSB)
* are zeroed out to allow comparison with other long
* UUIDs which differ only in the 16-bit relative
* part.*/
ShortUUIDBytes_t shortUUID; // 16 bit uuid (byte 2-3 using with base)
};
#endif // ifndef __UUID_H__