1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
|
/**
******************************************************************************
* @file bas.c
* @author MCD Application Team
* @brief Battery Service
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "common_blesvc.h"
/* Private typedef -----------------------------------------------------------*/
typedef struct
{
uint16_t BatterySvcHdle; /**< Service handle */
uint16_t BatteryLevelCharHdle; /**< Characteristic handle */
uint16_t CharPresentationFormatDescHdle; /**< Descriptor handle */
}BAS_Context_t;
/* Private defines -----------------------------------------------------------*/
/* Store Value into a buffer in Little Endian Format */
#define STORE_LE_16(buf, val) ( ((buf)[0] = (uint8_t) (val) ) , \
((buf)[1] = (uint8_t) (val>>8) ) )
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/**
* START of Section BLE_APP_CONTEXT
*/
PLACE_IN_SECTION("BLE_DRIVER_CONTEXT") BAS_Context_t BAS_Context[BLE_CFG_BAS_NUMBER];
/**
* END of Section BLE_APP_CONTEXT
*/
/* Private function prototypes -----------------------------------------------*/
static SVCCTL_EvtAckStatus_t BAS_Event_Handler(void *pckt);
/* Functions Definition ------------------------------------------------------*/
/* Private functions ----------------------------------------------------------*/
/**
* @brief Event handler
* @param Event: Address of the buffer holding the Event
* @retval Ack: Return whether the Event has been managed or not
*/
static SVCCTL_EvtAckStatus_t BAS_Event_Handler(void *Event)
{
SVCCTL_EvtAckStatus_t return_value;
hci_event_pckt *event_pckt;
evt_blecore_aci *blecore_evt;
aci_gatt_attribute_modified_event_rp0 * attribute_modified;
aci_gatt_read_permit_req_event_rp0 * attribute_read;
uint8_t service_instance;
BAS_Notification_evt_t Notification;
return_value = SVCCTL_EvtNotAck;
event_pckt = (hci_event_pckt *)(((hci_uart_pckt*)Event)->data);
switch(event_pckt->evt)
{
case HCI_VENDOR_SPECIFIC_DEBUG_EVT_CODE:
{
blecore_evt = (evt_blecore_aci*)event_pckt->data;
switch(blecore_evt->ecode)
{
case ACI_GATT_ATTRIBUTE_MODIFIED_VSEVT_CODE:
{
attribute_modified = (aci_gatt_attribute_modified_event_rp0*)blecore_evt->data;
for(service_instance = 0; service_instance < BLE_CFG_BAS_NUMBER ; service_instance++)
{
if(attribute_modified->Attr_Handle == (BAS_Context[service_instance].BatteryLevelCharHdle + 2))
{
return_value = SVCCTL_EvtAckFlowEnable;
if(attribute_modified->Attr_Data[0] & COMSVC_Notification)
{
Notification.BAS_Evt_Opcode = BAS_LEVEL_NOT_ENABLED_EVT;
Notification.ServiceInstance = service_instance;
BAS_Notification(&Notification);
}
else
{
Notification.BAS_Evt_Opcode = BAS_LEVEL_NOT_DISABLED_EVT;
Notification.ServiceInstance = service_instance;
BAS_Notification(&Notification);
}
}
}
}
break;
case ACI_GATT_READ_PERMIT_REQ_VSEVT_CODE:
{
attribute_read = (aci_gatt_read_permit_req_event_rp0*)blecore_evt->data;
for(service_instance = 0; service_instance < BLE_CFG_BAS_NUMBER ; service_instance++)
{
if(attribute_read->Attribute_Handle == (BAS_Context[service_instance].BatteryLevelCharHdle + 1))
{
return_value = SVCCTL_EvtAckFlowEnable;
aci_gatt_allow_read(attribute_read->Connection_Handle);
Notification.BAS_Evt_Opcode = BAS_LEVEL_READ_EVT;
Notification.ServiceInstance = service_instance;
BAS_Notification(&Notification);
}
}
}
break;
default:
break;
}
}
break; /* HCI_HCI_VENDOR_SPECIFIC_DEBUG_EVT_CODE_SPECIFIC */
default:
break;
}
return(return_value);
}/* end BAS_Event_Handler */
/* Public functions ----------------------------------------------------------*/
/**
* @brief Service initialization
* @param none
* @retval None
*/
void BAS_Init(void)
{
uint16_t uuid;
uint8_t numAttribRec = 0;
tBleStatus hciCmdResult;
uint8_t bat_option = 0;
uint8_t service_instance;
for(service_instance = 0; service_instance < BLE_CFG_BAS_NUMBER ; service_instance++)
{
/**
* Register the event handler to the BLE controller
*/
/* Only one registraton */
if(service_instance == 0)
SVCCTL_RegisterSvcHandler(BAS_Event_Handler);
/* serviceMaxAttributeRecord = 1 for battery service itself +
* 2 for battery level characteristic +
*/
numAttribRec = 3;
if(BLE_CFG_BAS_NUMBER > 1)
numAttribRec++; /* + Characteristic Presentation Format Descriptor */
#if (BLE_CFG_BAS_LEVEL_NOT_PROP == 1)
numAttribRec++; /* + Client Characteristic Configuration Descriptor */
bat_option = CHAR_PROP_NOTIFY;
#endif
/* store the Battery Service UUID */
uuid = BATTERY_SERVICE_UUID;
BLE_DBG_BAS_MSG("Battery Service UUID %x \n",
uuid);
hciCmdResult = aci_gatt_add_service(UUID_TYPE_16,
(Service_UUID_t *)&uuid,
PRIMARY_SERVICE,
numAttribRec,
&(BAS_Context[service_instance].BatterySvcHdle));
if (hciCmdResult == BLE_STATUS_SUCCESS)
{
BLE_DBG_BAS_MSG ("Battery Service (BAS) is added Successfully %04X\n",
BAS_Context[service_instance].BatterySvcHdle);
}
else
{
BLE_DBG_BAS_MSG ("FAILED to add Battery Service (BAS), Error: %02X !!\n",
hciCmdResult);
}
BLE_DBG_BAS_MSG ("Adding Battery Level Characteristic.\n");
uuid = BATTERY_LEVEL_CHAR_UUID;
/* Add ES Battery Level Characteristic */
hciCmdResult = aci_gatt_add_char(BAS_Context[service_instance].BatterySvcHdle,
UUID_TYPE_16,
(Char_UUID_t *) &uuid ,
1,
CHAR_PROP_READ | bat_option,
ATTR_PERMISSION_NONE,
GATT_NOTIFY_READ_REQ_AND_WAIT_FOR_APPL_RESP, /* gattEvtMask */
10, /* encryKeySize */
CHAR_VALUE_LEN_VARIABLE, /* isVariable */
&(BAS_Context[service_instance].BatteryLevelCharHdle));
if (hciCmdResult == BLE_STATUS_SUCCESS)
{
BLE_DBG_BAS_MSG ("Battery Level Characteristic Added Successfully %04X \n",
BAS_Context[service_instance].BatteryLevelCharHdle);
}
else
{
BLE_DBG_BAS_MSG ("FAILED to add Battery Level Characteristic, Error: %02X !!\n",
hciCmdResult);
}
if(BLE_CFG_BAS_NUMBER > 1)
{
uint8_t buf[20] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
/* Add Battery Characteristic Presentation Format Descriptor */
uuid = CHAR_PRESENTATION_FORMAT_DESCRIPTOR_UUID;
buf[0] = 4; /* unsigned 8-bit integer */
buf[1] = 0; /* exponent 0 */
STORE_LE_16(&buf[2], 0x27AD /*+ service_instance*/); /* percentage unit(0x27AD) + service instance */
buf[4] = 1; /* Bluetooth SIG Assigned Numbers */
STORE_LE_16(&buf[5], (0x0030+service_instance)); /* ST microelectronics assigned number */
hciCmdResult = aci_gatt_add_char_desc(BAS_Context[service_instance].BatterySvcHdle,
BAS_Context[service_instance].BatteryLevelCharHdle,
UUID_TYPE_16,
(Char_Desc_Uuid_t *)&uuid,
7,
7,
(void *)&buf,
ATTR_PERMISSION_NONE,
ATTR_ACCESS_READ_ONLY,
GATT_DONT_NOTIFY_EVENTS,
10,
CHAR_VALUE_LEN_CONSTANT,
&BAS_Context[service_instance].CharPresentationFormatDescHdle);
if (hciCmdResult == BLE_STATUS_SUCCESS)
{
BLE_DBG_BAS_MSG ("Battery Characteristic Presentation Format Descriptor Added Successfully %04X \n",
BAS_Context[service_instance].CharPresentationFormatDescHdle);
}
else
{
BLE_DBG_BAS_MSG ("FAILED to add Battery Characteristic Presentation Format Descriptor, Error: %02X !!\n",
hciCmdResult);
}
}
} /* End for(service_instance = 0; service_instance < CFG_BAS_NUMBER ; service_instance++) */
return;
}
/**
* @brief Characteristic update
* @param UUID: UUID of the characteristic
* @param service_snstance: Instance of the service to which the characteristic belongs
* @param pPayload
*/
void BAS_Update_Char(uint16_t UUID, uint8_t service_instance, uint8_t *pPayload)
{
switch(UUID)
{
case BATTERY_LEVEL_CHAR_UUID:
aci_gatt_update_char_value(BAS_Context[service_instance].BatterySvcHdle,
BAS_Context[service_instance].BatteryLevelCharHdle,
0, /* charValOffset */
1, /* charValueLen */
(uint8_t *)pPayload);
break;
default:
break;
}
return;
}/* end BAS_Update_Char() */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
