uqmi: add support for MBIM devices with QMI service
[project/uqmi.git] / mbim.c
1 /*
2 * Copyright (C) 2016 Bjørn Mork <bjorn@mork.no>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301 USA.
18 */
19
20 #include <stdbool.h>
21 #include <stdint.h>
22 #include <string.h>
23
24 #include <stdio.h>
25
26 #include "mbim.h"
27
28 static const uint8_t qmiuuid[16] = { 0xd1, 0xa3, 0x0b, 0xc2, 0xf9, 0x7a, 0x6e, 0x43,
29 0xbf, 0x65, 0xc7, 0xe2, 0x4f, 0xb0, 0xf0, 0xd3 };
30
31 bool is_mbim_qmi(struct mbim_command_message *msg)
32 {
33 return msg->header.type == cpu_to_le32(MBIM_MESSAGE_TYPE_COMMAND_DONE) &&
34 msg->command_id == cpu_to_le32(MBIM_CID_QMI_MSG) &&
35 !msg->command_type && /* actually 'status' here */
36 !memcmp(msg->service_id, qmiuuid, 16);
37 }
38
39 void mbim_qmi_cmd(struct mbim_command_message *msg, int len, uint16_t tid)
40 {
41 msg->header.type = cpu_to_le32(MBIM_MESSAGE_TYPE_COMMAND);
42 msg->header.length = sizeof(*msg) + len;
43 msg->header.transaction_id = cpu_to_le32(tid);
44 msg->fragment_header.total = 1;
45 msg->fragment_header.current = 0;
46 memcpy(msg->service_id, qmiuuid, 16);
47 msg->command_id = cpu_to_le32(MBIM_CID_QMI_MSG);
48 msg->command_type = cpu_to_le32(MBIM_MESSAGE_COMMAND_TYPE_SET);
49 msg->buffer_length = len;
50 }