1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2017-2019 Mellanox Technologies.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of Mellanox nor the names of contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifndef _MLXFW_H
33#define _MLXFW_H
34
35#include <sys/firmware.h>
36
37#define NLA_ALIGNTO		4
38#define NLA_ALIGN(len)		(((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
39
40enum mlxfw_fsm_state {
41	MLXFW_FSM_STATE_IDLE,
42	MLXFW_FSM_STATE_LOCKED,
43	MLXFW_FSM_STATE_INITIALIZE,
44	MLXFW_FSM_STATE_DOWNLOAD,
45	MLXFW_FSM_STATE_VERIFY,
46	MLXFW_FSM_STATE_APPLY,
47	MLXFW_FSM_STATE_ACTIVATE,
48};
49
50enum mlxfw_fsm_state_err {
51	MLXFW_FSM_STATE_ERR_OK,
52	MLXFW_FSM_STATE_ERR_ERROR,
53	MLXFW_FSM_STATE_ERR_REJECTED_DIGEST_ERR,
54	MLXFW_FSM_STATE_ERR_REJECTED_NOT_APPLICABLE,
55	MLXFW_FSM_STATE_ERR_REJECTED_UNKNOWN_KEY,
56	MLXFW_FSM_STATE_ERR_REJECTED_AUTH_FAILED,
57	MLXFW_FSM_STATE_ERR_REJECTED_UNSIGNED,
58	MLXFW_FSM_STATE_ERR_REJECTED_KEY_NOT_APPLICABLE,
59	MLXFW_FSM_STATE_ERR_REJECTED_BAD_FORMAT,
60	MLXFW_FSM_STATE_ERR_BLOCKED_PENDING_RESET,
61	MLXFW_FSM_STATE_ERR_MAX,
62};
63
64struct mlxfw_dev;
65struct firmware;
66
67struct mlxfw_dev_ops {
68	int (*component_query)(struct mlxfw_dev *mlxfw_dev, u16 component_index,
69			       u32 *p_max_size, u8 *p_align_bits,
70			       u16 *p_max_write_size);
71
72	int (*fsm_lock)(struct mlxfw_dev *mlxfw_dev, u32 *fwhandle);
73
74	int (*fsm_component_update)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
75				    u16 component_index, u32 component_size);
76
77	int (*fsm_block_download)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
78				  u8 *data, u16 size, u32 offset);
79
80	int (*fsm_component_verify)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
81				    u16 component_index);
82
83	int (*fsm_activate)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle);
84
85	int (*fsm_query_state)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
86			       enum mlxfw_fsm_state *fsm_state,
87			       enum mlxfw_fsm_state_err *fsm_state_err);
88
89	void (*fsm_cancel)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle);
90
91	void (*fsm_release)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle);
92};
93
94struct mlxfw_dev {
95	const struct mlxfw_dev_ops *ops;
96	const char *psid;
97	u16 psid_size;
98};
99
100int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
101			 const struct firmware *firmware);
102#endif
103