Return-Path: From: Lukasz Rymanowski To: linux-bluetooth@vger.kernel.org Cc: szymon.janc@tieto.com, Marcin Kraglak Subject: [PATCH 20/36] shared/gatt: Add function to read by type Date: Tue, 29 Apr 2014 03:14:51 +0200 Message-Id: <1398734107-4793-22-git-send-email-lukasz.rymanowski@tieto.com> In-Reply-To: <1398734107-4793-1-git-send-email-lukasz.rymanowski@tieto.com> References: <1398734107-4793-1-git-send-email-lukasz.rymanowski@tieto.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: From: Marcin Kraglak It will return list of attributes with given type. --- src/shared/gatt-db.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++ src/shared/gatt-db.h | 20 +++++++++ 2 files changed, 139 insertions(+) diff --git a/src/shared/gatt-db.c b/src/shared/gatt-db.c index c3645f1..b716ae6 100644 --- a/src/shared/gatt-db.c +++ b/src/shared/gatt-db.c @@ -552,3 +552,122 @@ void gatt_db_find_by_type_value(struct gatt_db *db, uint16_t start_handle, queue_foreach(db->services, find_by_type_value, &data); } + +struct read_by_type_data { + struct queue *queue; + bt_uuid_t uuid; + uint16_t start_handle; + uint16_t end_handle; +}; + +static void read_by_type(void *data, void *user_data) +{ + struct read_by_type_data *search_data = user_data; + struct gatt_db_service *service = data; + struct gatt_db_attribute *attribute; + struct gatt_db_handle_value *value; + int i; + + if (!service->active) + return; + + for (i = 0; i < service->num_handles; i++) { + attribute = service->attributes[i]; + if (!attribute) + continue; + + if (attribute->handle < search_data->start_handle) + continue; + + if (attribute->handle > search_data->end_handle) + return; + + if (bt_uuid_cmp(&search_data->uuid, &attribute->uuid)) + continue; + + value = malloc0(sizeof(struct gatt_db_handle_value) + + attribute->value_len); + if (!value) + return; + + value->handle = attribute->handle; + value->length = attribute->value_len; + if (attribute->value_len) + memcpy(value->value, attribute->value, value->length); + + if (!queue_push_tail(search_data->queue, value)) + free(value); + } +} + +void gatt_db_read_by_type(struct gatt_db *db, uint16_t start_handle, + uint16_t end_handle, + const bt_uuid_t type, + struct queue *queue) +{ + struct read_by_type_data data; + data.uuid = type; + data.start_handle = start_handle; + data.end_handle = end_handle; + data.queue = queue; + + queue_foreach(db->services, read_by_type, &data); +} + + +struct find_information_data { + struct queue *queue; + uint16_t start_handle; + uint16_t end_handle; +}; + +static void find_information(void *data, void *user_data) +{ + struct find_information_data *search_data = user_data; + struct gatt_db_service *service = data; + struct gatt_db_attribute *attribute; + struct gatt_db_find_information *value; + int i; + + if (!service->active) + return; + + /* Check if service is in range */ + if (service->attributes[service->num_handles - 1]->handle < + search_data->start_handle) + return; + + for (i = 0; i < service->num_handles; i++) { + attribute = service->attributes[i]; + if (!attribute) + continue; + + if (attribute->handle < search_data->start_handle) + continue; + + if (attribute->handle > search_data->end_handle) + return; + + value = new0(struct gatt_db_find_information, 1); + if (!value) + return; + + value->handle = attribute->handle; + value->uuid = attribute->uuid; + if (!queue_push_tail(search_data->queue, value)) + free(value); + } +} + +void gatt_db_find_information(struct gatt_db *db, uint16_t start_handle, + uint16_t end_handle, + struct queue *queue) +{ + struct find_information_data data; + + data.start_handle = start_handle; + data.end_handle = end_handle; + data.queue = queue; + + queue_foreach(db->services, find_information, &data); +} diff --git a/src/shared/gatt-db.h b/src/shared/gatt-db.h index 6b7897c..a6da4e2 100644 --- a/src/shared/gatt-db.h +++ b/src/shared/gatt-db.h @@ -83,3 +83,23 @@ void gatt_db_find_by_type_value(struct gatt_db *db, uint16_t start_handle, const uint8_t *value, uint16_t length, struct queue *queue); + +struct gatt_db_handle_value { + uint16_t handle; + uint16_t length; + uint8_t value[0]; +}; + +void gatt_db_read_by_type(struct gatt_db *db, uint16_t start_handle, + uint16_t end_handle, + const bt_uuid_t type, + struct queue *queue); + +struct gatt_db_find_information { + uint16_t handle; + bt_uuid_t uuid; +}; + +void gatt_db_find_information(struct gatt_db *db, uint16_t start_handle, + uint16_t end_handle, + struct queue *queue); -- 1.8.4