Generic Attribute Profile (GATT)

This group contains modules related to generic attribute profile layer. More...

Collaboration diagram for Generic Attribute Profile (GATT):

Modules
	CGM Specific Control Point (CGMCP)
	This group contains modules falling into the CGMCP.
	Glucose Measurement Characteristic
	This group contains modules falling into glucose measurement preparation and reporting.
	Session Start Time Charateristic
	This group contains modules related to session start time characteristic implementation.
	Session Run Time Characteristic
	This group contains modules related to session run time characteristic implementation.
	CGM Status Charateristic
	This group contains modules related to CGM status characteristic implementation.
	CGM Feature Characteristic
	This group contains modules related to CGM feature characteristic implementation.
	Record Access Control Point (RACP)
	The macros, constants, variables, functions that are related to the RACP.

Functions
static void	cgmservice_cb (uint8 event, uint8 *valueP, uint8 *len, uint8 *result)
	The callback function in the application layer when the GATT service layer receives read/write operation to one of the CGM service characteristic. More...
bStatus_t	CGM_AddService (uint32 services)
	Initializes the CGM service by registering GATT attributes with the GATT server. More...
void	CGM_Register (CGMServiceCB_t pfnServiceCB)
	Register a callback function with the CGM Service. More...
static uint8	CGM_ReadAttrCB (uint16 connHandle, gattAttribute_t *pAttr, uint8 *pValue, uint8 *pLen, uint16 offset, uint8 maxLen)
	The callback function when an attribute is being read by a collector. More...
static bStatus_t	CGM_WriteAttrCB (uint16 connHandle, gattAttribute_t *pAttr, uint8 *pValue, uint8 len, uint16 offset)
	The CGM service layer callback function when an attribute is being written to by the collector. More...

Variables
static CGMServiceCB_t	CGMServiceCB
	The variable to register the CGM service callback function. More...
static gattAttribute_t	CGMAttrTbl []
CONST gattServiceCBs_t	CGMCBs

Detailed Description

This group contains modules related to generic attribute profile layer.

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@{

Function Documentation

bStatus_t CGM_AddService

(

uint32

services

)

Initializes the CGM service by registering GATT attributes with the GATT server.

Parameters

services

- services to add. This is a bit map and can contain more than one service.

Returns

Success or Failure

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static uint8 CGM_ReadAttrCB ( uint16  connHandle, gattAttribute_t *  pAttr, uint8 *  pValue, uint8 *  pLen, uint16  offset, uint8  maxLen  )

static

The callback function when an attribute is being read by a collector.

Parameters

connHandle	- connection message was received on
pAttr	- pointer to attribute
pValue	- pointer to data to be read
pLen	- length of data to be read
offset	- offset of the first octet to be read
maxLen	- maximum length of data to be read

Returns

Success or Failure

void CGM_Register

(

CGMServiceCB_t

pfnServiceCB

)

Register a callback function with the CGM Service.

Parameters

pfnServiceCB

- Callback function.

Returns

None.

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static bStatus_t CGM_WriteAttrCB ( uint16  connHandle, gattAttribute_t *  pAttr, uint8 *  pValue, uint8  len, uint16  offset  )

static

The CGM service layer callback function when an attribute is being written to by the collector.

Parameters

connHandle	- connection message was received on
pAttr	- pointer to attribute
pValue	- pointer to data to be written
len	- length of data
offset	- offset of the first octet to be written

Returns

Success or Failure

static void cgmservice_cb ( uint8  event, uint8 *  valueP, uint8 *  len, uint8 *  result  )

static

The callback function in the application layer when the GATT service layer receives read/write operation to one of the CGM service characteristic.

Parameters

event	- service event. Enumeration can be found in cgmservice.h
valueP	- data value past from the GATT layer to the Application Layer, or vice versa.
result	- the address to the memory to pass the processing result back to the GATT layer
len	- pointer to the length of the data residing in valueP

Returns

none

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Variable Documentation

gattAttribute_t CGMAttrTbl[]

static

This variable is used to define the attributes of the CGM service

CONST gattServiceCBs_t CGMCBs

Initial value:

=
{
  CGM_ReadAttrCB,   
  CGM_WriteAttrCB,  
  NULL              
}

Service Callbacks

CGMServiceCB_t CGMServiceCB

static

The variable to register the CGM service callback function.