1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
* Copyright (C) 2021, 2025 Intel Corporation
*/
#ifndef __iwl_fw_dhc_utils_h__
#define __iwl_fw_dhc_utils_h__
#include <linux/types.h>
#include "fw/img.h"
#include "api/commands.h"
#include "api/dhc.h"
/**
* iwl_dhc_resp_status - return status of DHC response
* @fw: firwmware image information
* @pkt: response packet, must not be %NULL
*
* Returns: the status value of the DHC command or (u32)-1 if the
* response was too short.
*/
static inline u32 iwl_dhc_resp_status(const struct iwl_fw *fw,
struct iwl_rx_packet *pkt)
{
if (iwl_fw_lookup_notif_ver(fw, IWL_ALWAYS_LONG_GROUP,
DEBUG_HOST_COMMAND, 1) >= 2) {
struct iwl_dhc_cmd_resp *resp = (void *)pkt->data;
if (iwl_rx_packet_payload_len(pkt) < sizeof(*resp))
return (u32)-1;
return le32_to_cpu(resp->status);
} else {
struct iwl_dhc_cmd_resp_v1 *resp = (void *)pkt->data;
if (iwl_rx_packet_payload_len(pkt) < sizeof(*resp))
return (u32)-1;
return le32_to_cpu(resp->status);
}
}
/**
* iwl_dhc_resp_data - return data pointer of DHC response
* @fw: firwmware image information
* @pkt: response packet, must not be %NULL
* @len: where to store the length
*
* Returns: The data pointer, or an ERR_PTR() if the data was
* not valid (too short).
*/
static inline void *iwl_dhc_resp_data(const struct iwl_fw *fw,
struct iwl_rx_packet *pkt,
unsigned int *len)
{
if (iwl_fw_lookup_notif_ver(fw, IWL_ALWAYS_LONG_GROUP,
DEBUG_HOST_COMMAND, 1) >= 2) {
struct iwl_dhc_cmd_resp *resp = (void *)pkt->data;
if (iwl_rx_packet_payload_len(pkt) < sizeof(*resp))
return ERR_PTR(-EINVAL);
*len = iwl_rx_packet_payload_len(pkt) - sizeof(*resp);
return (void *)&resp->data;
} else {
struct iwl_dhc_cmd_resp_v1 *resp = (void *)pkt->data;
if (iwl_rx_packet_payload_len(pkt) < sizeof(*resp))
return ERR_PTR(-EINVAL);
*len = iwl_rx_packet_payload_len(pkt) - sizeof(*resp);
return (void *)&resp->data;
}
}
#endif /* __iwl_fw_dhc_utils_h__ */
|
