Bluetooth: GATT: Add bt_gatt_write
This adds bt_gatt_write which can used to write attribute value. Change-Id: I45a02e6dbf642ed1bcab8234180f2c48a28e2874 Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
parent
0b28dbfc19
commit
dc55a3741e
2 changed files with 78 additions and 0 deletions
|
@ -731,6 +731,22 @@ typedef void (*bt_gatt_read_func_t)(struct bt_conn *conn, int err,
|
|||
int bt_gatt_read(struct bt_conn *conn, uint16_t handle, uint16_t offset,
|
||||
bt_gatt_read_func_t func);
|
||||
|
||||
/** @brief Write Attribute Value by handle
|
||||
*
|
||||
* This procedure write the attribute value and return the result in the
|
||||
* callback in case it is set.
|
||||
*
|
||||
* @param conn Connection object.
|
||||
* @param handle Attribute handle.
|
||||
* @param data Data to be written.
|
||||
* @param length Data length.
|
||||
* @param func Callback function.
|
||||
*
|
||||
* @return 0 in case of success or negative value in case of error.
|
||||
*/
|
||||
int bt_gatt_write(struct bt_conn *conn, uint16_t handle, const void *data,
|
||||
uint16_t length, bt_gatt_rsp_func_t func);
|
||||
|
||||
/** @brief Cancel GATT pending request
|
||||
*
|
||||
* @param conn Connection object.
|
||||
|
|
|
@ -921,6 +921,68 @@ int bt_gatt_read(struct bt_conn *conn, uint16_t handle, uint16_t offset,
|
|||
return gatt_send(conn, buf, att_read_rsp, func, NULL);
|
||||
}
|
||||
|
||||
static void att_write_rsp(struct bt_conn *conn, uint8_t err, const void *pdu,
|
||||
uint16_t length, void *user_data)
|
||||
{
|
||||
bt_gatt_rsp_func_t func = user_data;
|
||||
|
||||
BT_DBG("err 0x%02x\n", err);
|
||||
|
||||
func(conn, err);
|
||||
}
|
||||
|
||||
static int gatt_write_cmd(struct bt_conn *conn, uint16_t handle,
|
||||
const void *data, uint16_t length)
|
||||
{
|
||||
struct bt_buf *buf;
|
||||
struct bt_att_write_cmd *cmd;
|
||||
|
||||
buf = bt_att_create_pdu(conn, BT_ATT_OP_WRITE_CMD,
|
||||
sizeof(*cmd) + length);
|
||||
if (!buf) {
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
cmd = bt_buf_add(buf, sizeof(*cmd));
|
||||
cmd->handle = sys_cpu_to_le16(handle);
|
||||
memcpy(cmd->value, data, length);
|
||||
bt_buf_add(buf, length);
|
||||
|
||||
BT_DBG("handle 0x%04x length %u\n", handle, length);
|
||||
|
||||
return gatt_send(conn, buf, NULL, NULL, NULL);
|
||||
}
|
||||
|
||||
int bt_gatt_write(struct bt_conn *conn, uint16_t handle, const void *data,
|
||||
uint16_t length, bt_gatt_rsp_func_t func)
|
||||
{
|
||||
struct bt_buf *buf;
|
||||
struct bt_att_write_req *req;
|
||||
|
||||
if (!conn || !handle) {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!func) {
|
||||
return gatt_write_cmd(conn, handle, data, length);
|
||||
}
|
||||
|
||||
buf = bt_att_create_pdu(conn, BT_ATT_OP_WRITE_REQ,
|
||||
sizeof(*req) + length);
|
||||
if (!buf) {
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
req = bt_buf_add(buf, sizeof(*req));
|
||||
req->handle = sys_cpu_to_le16(handle);
|
||||
memcpy(req->value, data, length);
|
||||
bt_buf_add(buf, length);
|
||||
|
||||
BT_DBG("handle 0x%04x length %u\n", handle, length);
|
||||
|
||||
return gatt_send(conn, buf, att_write_rsp, func, NULL);
|
||||
}
|
||||
|
||||
void bt_gatt_cancel(struct bt_conn *conn)
|
||||
{
|
||||
bt_att_cancel(conn);
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue