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Revert "gatt_client: use Find by Information Request to lookup CCCD for Notifications/Indications"

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This reverts commit 1b9be2e8d27cdda8e4ec6c17a6c75ebf262a671d.
This commit is contained in:
Matthias Ringwald 2024-12-10 11:40:32 +01:00
parent e1f9b11f61
commit 197b4dd334
2 changed files with 33 additions and 1 deletions
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29
src/ble/gatt_client.c
View File

@ -639,6 +639,14 @@ static void send_gatt_cancel_prepared_write_request(gatt_client_t * gatt_client)
att_execute_write_request(gatt_client, ATT_EXECUTE_WRITE_REQUEST, 0);
}
#ifndef ENABLE_GATT_FIND_INFORMATION_FOR_CCC_DISCOVERY
static void send_gatt_read_client_characteristic_configuration_request(gatt_client_t * gatt_client){
att_read_by_type_or_group_request_for_uuid16(gatt_client, ATT_READ_BY_TYPE_REQUEST,
GATT_CLIENT_CHARACTERISTICS_CONFIGURATION,
gatt_client->start_group_handle, gatt_client->end_group_handle);
}
#endif
static void send_gatt_read_characteristic_descriptor_request(gatt_client_t * gatt_client){
att_read_request(gatt_client, ATT_READ_REQUEST, gatt_client->attribute_handle);
}
@ -1558,10 +1566,17 @@ static bool gatt_client_run_for_gatt_client(gatt_client_t * gatt_client){
send_gatt_cancel_prepared_write_request(gatt_client);
break;
case P_W2_SEND_FIND_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY:
#ifdef ENABLE_GATT_FIND_INFORMATION_FOR_CCC_DISCOVERY
case P_W2_SEND_FIND_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY:
// use Find Information
gatt_client->state = P_W4_FIND_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY_RESULT;
send_gatt_characteristic_descriptor_request(gatt_client);
#else
case P_W2_SEND_READ_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY:
// Use Read By Type
gatt_client->state = P_W4_READ_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY_RESULT;
send_gatt_read_client_characteristic_configuration_request(gatt_client);
#endif
break;
case P_W2_SEND_READ_CHARACTERISTIC_DESCRIPTOR_QUERY:
@ -1963,6 +1978,12 @@ static void gatt_client_handle_att_read_by_type_response(gatt_client_t *gatt_cli
// GATT_EVENT_QUERY_COMPLETE is emitted by trigger_next_xxx when done
break;
}
#ifndef ENABLE_GATT_FIND_INFORMATION_FOR_CCC_DISCOVERY
case P_W4_READ_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY_RESULT:
gatt_client->client_characteristic_configuration_handle = little_endian_read_16(packet, 2);
gatt_client->state = P_W2_WRITE_CLIENT_CHARACTERISTIC_CONFIGURATION;
break;
#endif
case P_W4_READ_BY_TYPE_RESPONSE: {
uint16_t pair_size = packet[1];
// set last result handle to last valid handle, only used if pair_size invalid
@ -2106,6 +2127,7 @@ static void gatt_client_handle_att_response(gatt_client_t * gatt_client, uint8_t
if (size < (pair_size + offset)) break;
uint16_t last_descriptor_handle = little_endian_read_16(packet, size - pair_size);
#ifdef ENABLE_GATT_FIND_INFORMATION_FOR_CCC_DISCOVERY
log_info("ENABLE_GATT_FIND_INFORMATION_FOR_CCC_DISCOVERY, state %x", gatt_client->state);
if (gatt_client->state == P_W4_FIND_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY_RESULT){
// iterate over descriptors looking for CCC
@ -2130,6 +2152,7 @@ static void gatt_client_handle_att_response(gatt_client_t * gatt_client, uint8_t
}
break;
}
#endif
report_gatt_all_characteristic_descriptors(gatt_client, &packet[2], size - 2u, pair_size);
trigger_next_characteristic_descriptor_query(gatt_client, last_descriptor_handle);
// GATT_EVENT_QUERY_COMPLETE is emitted by trigger_next_xxx when done
@ -2962,7 +2985,11 @@ uint8_t gatt_client_write_client_characteristic_configuration_with_context(btsta
gatt_client->end_group_handle = characteristic->end_handle;
little_endian_store_16(gatt_client->client_characteristic_configuration_value, 0, configuration);
#ifdef ENABLE_GATT_FIND_INFORMATION_FOR_CCC_DISCOVERY
gatt_client->state = P_W2_SEND_FIND_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY;
#else
gatt_client->state = P_W2_SEND_READ_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY;
#endif
gatt_client_run();
return ERROR_CODE_SUCCESS;
}

5
src/ble/gatt_client.h
View File

@ -102,8 +102,13 @@ typedef enum {
P_W2_CANCEL_PREPARED_WRITE_DATA_MISMATCH,
P_W4_CANCEL_PREPARED_WRITE_DATA_MISMATCH_RESULT,
#ifdef ENABLE_GATT_FIND_INFORMATION_FOR_CCC_DISCOVERY
P_W2_SEND_FIND_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY,
P_W4_FIND_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY_RESULT,
#else
P_W2_SEND_READ_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY,
P_W4_READ_CLIENT_CHARACTERISTIC_CONFIGURATION_QUERY_RESULT,
#endif
P_W2_WRITE_CLIENT_CHARACTERISTIC_CONFIGURATION,
P_W4_CLIENT_CHARACTERISTIC_CONFIGURATION_RESULT,