This patch implements the bt_gatt_write_without_response and bt_gatt_write_value
functions.
---
src/shared/gatt-helpers.c | 82 ++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 77 insertions(+), 5 deletions(-)
diff --git a/src/shared/gatt-helpers.c b/src/shared/gatt-helpers.c
index 215d35e..a1e8d79 100644
--- a/src/shared/gatt-helpers.c
+++ b/src/shared/gatt-helpers.c
@@ -1141,11 +1141,60 @@ bool bt_gatt_read_long_value(struct bt_att *att,
bool bt_gatt_write_without_response(struct bt_att *att,
uint16_t value_handle,
- bool signed_write,
+ bool signed_write,
uint8_t *value, uint16_t length)
{
- /* TODO */
- return false;
+ uint8_t pdu[2 + length];
+
+ if (!att)
+ return 0;
+
+ /* TODO: Support this once bt_att_send supports signed writes. */
+ if (signed_write)
+ return 0;
+
+ put_le16(value_handle, pdu);
+ memcpy(pdu + 2, value, length);
+
+ return bt_att_send(att, BT_ATT_OP_WRITE_CMD, pdu, sizeof(pdu),
+ NULL, NULL, NULL);
+}
+
+struct write_op {
+ bt_gatt_result_callback_t callback;
+ void *user_data;
+ bt_gatt_destroy_func_t destroy;
+};
+
+static void destroy_write_op(void *data)
+{
+ struct write_op *op = data;
+
+ if (op->destroy)
+ op->destroy(op->user_data);
+
+ free(op);
+}
+
+static void write_cb(uint8_t opcode, const void *pdu, uint16_t length,
+ void *user_data)
+{
+ struct write_op *op = user_data;
+ bool success = true;
+ uint8_t att_ecode = 0;
+
+ if (opcode == BT_ATT_OP_ERROR_RSP) {
+ success = false;
+ att_ecode = process_error(pdu, length);
+ goto done;
+ }
+
+ if (opcode != BT_ATT_OP_WRITE_RSP || pdu || length)
+ success = false;
+
+done:
+ if (op->callback)
+ op->callback(success, att_ecode, op->user_data);
}
bool bt_gatt_write_value(struct bt_att *att, uint16_t value_handle,
@@ -1154,8 +1203,31 @@ bool bt_gatt_write_value(struct bt_att *att, uint16_t value_handle,
void *user_data,
bt_gatt_destroy_func_t destroy)
{
- /* TODO */
- return false;
+ struct write_op *op;
+ uint8_t pdu[2 + length];
+
+ if (!att)
+ return false;
+
+ op = new0(struct write_op, 1);
+ if (!op)
+ return false;
+
+ op->callback = callback;
+ op->user_data = user_data;
+ op->destroy = destroy;
+
+ put_le16(value_handle, pdu);
+ memcpy(pdu + 2, value, length);
+
+ if (!bt_att_send(att, BT_ATT_OP_WRITE_REQ, pdu, sizeof(pdu),
+ write_cb, op,
+ destroy_write_op)) {
+ free(op);
+ return false;
+ }
+
+ return true;
}
bool bt_gatt_write_long_value(struct bt_att *att, bool reliable,
--
2.0.0.526.g5318336
--
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