This patch adds the "heart-rate" command which can be used to hide
or unhide the Heart Rate service. This is useful for testing service
changed events.
---
tools/btgatt-server.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 58 insertions(+), 2 deletions(-)
diff --git a/tools/btgatt-server.c b/tools/btgatt-server.c
index d24640e..d66dc21 100644
--- a/tools/btgatt-server.c
+++ b/tools/btgatt-server.c
@@ -83,8 +83,10 @@ struct server {
uint8_t *device_name;
size_t name_len;
+ uint16_t gatt_svc_chngd_handle;
bool svc_chngd_enabled;
+ uint16_t hr_handle;
uint16_t hr_msrmt_handle;
uint16_t hr_energy_expended;
bool hr_visible;
@@ -445,17 +447,19 @@ static void populate_gap_service(struct server *server)
static void populate_gatt_service(struct server *server)
{
bt_uuid_t uuid;
- struct gatt_db_attribute *service;
+ struct gatt_db_attribute *service, *svc_chngd;
/* Add the GATT service */
bt_uuid16_create(&uuid, UUID_GATT);
service = gatt_db_add_service(server->db, &uuid, true, 4);
bt_uuid16_create(&uuid, GATT_CHARAC_SERVICE_CHANGED);
- gatt_db_service_add_characteristic(service, &uuid, BT_ATT_PERM_READ,
+ svc_chngd = gatt_db_service_add_characteristic(service, &uuid,
+ BT_ATT_PERM_READ,
BT_GATT_CHRC_PROP_READ | BT_GATT_CHRC_PROP_INDICATE,
gatt_service_changed_cb,
NULL, server);
+ server->gatt_svc_chngd_handle = gatt_db_attribute_get_handle(svc_chngd);
bt_uuid16_create(&uuid, GATT_CLIENT_CHARAC_CFG_UUID);
gatt_db_service_add_descriptor(service, &uuid,
@@ -475,6 +479,7 @@ static void populate_hr_service(struct server *server)
/* Add Heart Rate Service */
bt_uuid16_create(&uuid, UUID_HEART_RATE);
service = gatt_db_add_service(server->db, &uuid, true, 8);
+ server->hr_handle = gatt_db_attribute_get_handle(service);
/* HR Measurement Characteristic */
bt_uuid16_create(&uuid, UUID_HEART_RATE_MSRMT);
@@ -820,6 +825,56 @@ done:
free(value);
}
+static void heart_rate_usage(void)
+{
+ printf("Usage: heart-rate on|off\n");
+}
+
+static void cmd_heart_rate(struct server *server, char *cmd_str)
+{
+ bool enable;
+ uint8_t pdu[4];
+ struct gatt_db_attribute *attr;
+
+ if (!cmd_str) {
+ heart_rate_usage();
+ return;
+ }
+
+ if (strcmp(cmd_str, "on") == 0)
+ enable = true;
+ else if (strcmp(cmd_str, "off") == 0)
+ enable = false;
+ else {
+ heart_rate_usage();
+ return;
+ }
+
+ if (enable == server->hr_visible) {
+ printf("Heart Rate Service already %s\n",
+ enable ? "visible" : "hidden");
+ return;
+ }
+
+ server->hr_visible = enable;
+ attr = gatt_db_get_attribute(server->db, server->hr_handle);
+ gatt_db_service_set_active(attr, server->hr_visible);
+ update_hr_msrmt_simulation(server);
+
+ if (!server->svc_chngd_enabled)
+ return;
+
+ put_le16(server->hr_handle, pdu);
+ put_le16(server->hr_handle + 7, pdu + 2);
+
+ server->hr_msrmt_enabled = false;
+ update_hr_msrmt_simulation(server);
+
+ bt_gatt_server_send_indication(server->gatt,
+ server->gatt_svc_chngd_handle,
+ pdu, 4, conf_cb, NULL, NULL);
+}
+
static void cmd_help(struct server *server, char *cmd_str);
typedef void (*command_func_t)(struct server *server, char *cmd_str);
@@ -831,6 +886,7 @@ static struct {
} command[] = {
{ "help", cmd_help, "\tDisplay help message" },
{ "notify", cmd_notify, "\tSend handle-value notification" },
+ { "heart-rate", cmd_heart_rate, "\tHide/Unhide Heart Rate Service" },
{ }
};
--
2.1.0.rc2.206.gedb03e5
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