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add class for DiscoveredService; and maintain a discoveryStatus structure.

master
Rohit Grover 2015-04-29 13:21:41 +01:00
parent 5f5027e26d
commit de7195fb61
1 changed files with 61 additions and 25 deletions
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86
btle/btle_gattc.cpp
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@ -15,6 +15,7 @@
*/
#include "btle_gattc.h"
#include "UUID.h"
#define BLE_DB_DISCOVERY_MAX_SRV 4 /**< Maximum number of services supported by this module. This also indicates the maximum number of users allowed to be registered to this module. (one user per service). */
#define BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV 4 /**< Maximum number of characteristics per service supported by this module. */
@ -25,27 +26,43 @@
/**@brief Structure for holding information about the service and the characteristics found during
* the discovery process.
*/
typedef struct
{
ble_uuid_t srvUUID; /**< UUID of the service. */
struct DiscoveredService {
ShortUUIDBytes_t uuid; /**< UUID of the service. */
// uint8_t char_count; /**< Number of characteristics present in the service. */
// ble_db_discovery_char_t charateristics[BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV]; /**< Array of information related to the characteristics present in the service. */
ble_gattc_handle_range_t handleRange; /**< Service Handle Range. */
} ble_db_discovery_srv_t;
Gap::Handle_t startHandle; /**< Service Handle Range. */
Gap::Handle_t endHandle; /**< Service Handle Range. */
DiscoveredService() {
/* empty */
}
DiscoveredService(ShortUUIDBytes_t uuidIn, Gap::Handle_t start, Gap::Handle_t end) {
setup(uuidIn, start, end);
}
void setup(ShortUUIDBytes_t uuidIn, Gap::Handle_t start, Gap::Handle_t end) {
uuid = uuidIn;
startHandle = start;
endHandle = end;
}
};
typedef struct
{
ble_db_discovery_srv_t services[BLE_DB_DISCOVERY_MAX_SRV]; /**< Information related to the current service being discovered. This is intended for internal use during service discovery.*/
DiscoveredService services[BLE_DB_DISCOVERY_MAX_SRV]; /**< Information related to the current service being discovered. This is intended for internal use during service discovery.*/
uint16_t connHandle; /**< Connection handle as provided by the SoftDevice. */
uint8_t srvCount; /**< Number of services at the peers GATT database.*/
// uint8_t currCharInd; /**< Index of the current characteristic being discovered. This is intended for internal use during service discovery.*/
uint8_t currSrvInd; /**< Index of the current service being discovered. This is intended for internal use during service discovery.*/
// bool discoveryInProgress; /**< Variable to indicate if there is a service discovery in progress. */
bool discoveryInProgress; /**< Variable to indicate if there is a service discovery in progress. */
} ble_db_discovery_t;
static ble_db_discovery_t discoveryStatus;
void launchServiceDiscovery(Gap::Handle_t connectionHandle)
{
// printf("connectionHandle %u\r\n", connectionHandle);
discoveryStatus.discoveryInProgress = true;
printf("launch service discovery returned %u\r\n", sd_ble_gattc_primary_services_discover(connectionHandle, SRV_DISC_START_HANDLE, NULL));
}
@ -56,32 +73,27 @@ void bleGattcEventHandler(const ble_evt_t *p_ble_evt)
switch (p_ble_evt->evt.gattc_evt.gatt_status) {
case BLE_GATT_STATUS_SUCCESS: {
printf("count of primary services: %u\r\n", p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count);
discoveryStatus.connHandle = p_ble_evt->evt.gattc_evt.conn_handle;
discoveryStatus.currSrvInd = 0;
discoveryStatus.srvCount = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count;
unsigned index;
for (index = 0; index < p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count; index++) {
printf("%x [%u %u]\r\n",
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[index].uuid.uuid,
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[index].handle_range.start_handle,
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[index].handle_range.end_handle);
ble_gattc_handle_range_t handleRange = {
.start_handle = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[index].handle_range.start_handle,
.end_handle = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[index].handle_range.end_handle
};
printf("characteristics_discover returned %u\r\n",
sd_ble_gattc_characteristics_discover(p_ble_evt->evt.gattc_evt.conn_handle, &handleRange));
for (unsigned serviceIndex = 0; serviceIndex < discoveryStatus.srvCount; serviceIndex++) {
discoveryStatus.services[serviceIndex].
setup(p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].uuid.uuid,
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].handle_range.start_handle,
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].handle_range.end_handle);
}
printf("services discover returned %u\r\n",
sd_ble_gattc_primary_services_discover(p_ble_evt->evt.gattc_evt.conn_handle,
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[index -1].handle_range.end_handle,
NULL));
break;
break;
}
case BLE_GATT_STATUS_ATTERR_ATTRIBUTE_NOT_FOUND: {
discoveryStatus.discoveryInProgress = false;
printf("end of service discovery\r\n");
break;
}
default: {
discoveryStatus.discoveryInProgress = false;
printf("gatt failure status: %u\r\n", p_ble_evt->evt.gattc_evt.gatt_status);
break;
}
@ -97,4 +109,28 @@ void bleGattcEventHandler(const ble_evt_t *p_ble_evt)
break;
}
}
if (!discoveryStatus.discoveryInProgress) {
return;
}
while (discoveryStatus.currSrvInd < discoveryStatus.srvCount) {
printf("%x [%u %u]\r\n",
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].uuid.uuid,
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.start_handle,
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.end_handle);
// ble_gattc_handle_range_t handleRange = {
// .start_handle = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.start_handle,
// .end_handle = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.end_handle
// };
// printf("characteristics_discover returned %u\r\n",
// sd_ble_gattc_characteristics_discover(p_ble_evt->evt.gattc_evt.conn_handle, &handleRange));
discoveryStatus.currSrvInd++;
}
printf("services discover returned %u\r\n",
sd_ble_gattc_primary_services_discover(p_ble_evt->evt.gattc_evt.conn_handle,
p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd -1].handle_range.end_handle,
NULL));
}