Add support for the Reference Time Update Service (RTUS). From the spec:
"This service defines how a client can request an update from a
reference time source from a time server using the Generic Attribute
Profile (GATT)."
---
time/server.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
time/server.h | 19 +++++++++++++++++++
2 files changed, 66 insertions(+), 0 deletions(-)
diff --git a/time/server.c b/time/server.c
index 5c32dc2..4958fd3 100644
--- a/time/server.c
+++ b/time/server.c
@@ -39,8 +39,11 @@
#include "server.h"
#define CURRENT_TIME_SVC_UUID 0x1805
+#define REF_TIME_UPDATE_SVC_UUID 0x1806
#define LOCAL_TIME_INFO_CHR_UUID 0x2A0F
+#define TIME_UPDATE_CTRL_CHR_UUID 0x2A16
+#define TIME_UPDATE_STAT_CHR_UUID 0x2A17
#define CT_TIME_CHR_UUID 0x2A2B
static int encode_current_time(uint8_t value[10])
@@ -130,9 +133,53 @@ static void register_current_time_service(void)
GATT_OPT_INVALID);
}
+static uint8_t time_update_control(struct attribute *a, gpointer user_data)
+{
+ DBG("handle 0x%04x", a->handle);
+
+ if (a->len != 1)
+ DBG("Invalid control point value size: %d", a->len);
+
+ return 0;
+}
+
+static uint8_t time_update_status(struct attribute *a, gpointer user_data)
+{
+ uint8_t value[2];
+
+ DBG("handle 0x%04x", a->handle);
+
+ value[0] = UPDATE_STATE_IDLE;
+ value[1] = UPDATE_RESULT_SUCCESSFUL;
+ attrib_db_update(a->handle, NULL, value, sizeof(value), NULL);
+
+ return 0;
+}
+
+static void register_reference_time_update_service(void)
+{
+ /* Reference Time Update service */
+ gatt_service_add(GATT_PRIM_SVC_UUID, REF_TIME_UPDATE_SVC_UUID,
+ /* Time Update control point */
+ GATT_OPT_CHR_UUID, TIME_UPDATE_CTRL_CHR_UUID,
+ GATT_OPT_CHR_PROPS,
+ ATT_CHAR_PROPER_WRITE_WITHOUT_RESP,
+ GATT_OPT_CHR_VALUE_CB, ATTRIB_WRITE,
+ time_update_control,
+
+ /* Time Update status */
+ GATT_OPT_CHR_UUID, TIME_UPDATE_STAT_CHR_UUID,
+ GATT_OPT_CHR_PROPS, ATT_CHAR_PROPER_READ,
+ GATT_OPT_CHR_VALUE_CB, ATTRIB_READ,
+ time_update_status,
+
+ GATT_OPT_INVALID);
+}
+
int time_server_init(void)
{
register_current_time_service();
+ register_reference_time_update_service();
return 0;
}
diff --git a/time/server.h b/time/server.h
index 621bf2b..12b47ed 100644
--- a/time/server.h
+++ b/time/server.h
@@ -22,5 +22,24 @@
*
*/
+enum {
+ UPDATE_RESULT_SUCCESSFUL = 0,
+ UPDATE_RESULT_CANCELED = 1,
+ UPDATE_RESULT_NO_CONN = 2,
+ UPDATE_RESULT_ERROR = 3,
+ UPDATE_RESULT_TIMEOUT = 4,
+ UPDATE_RESULT_NOT_ATTEMPTED = 5,
+};
+
+enum {
+ UPDATE_STATE_IDLE = 0,
+ UPDATE_STATE_PENDING = 1,
+};
+
+enum {
+ GET_REFERENCE_UPDATE = 1,
+ CANCEL_REFERENCE_UPDATE = 2,
+};
+
int time_server_init(void);
void time_server_exit(void);
--
1.7.0.4
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