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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define pr_fmt(fmt) "dpu-kms_utils:[%s] " fmt, __func__
#include "dpu_kms.h"
void dpu_kms_info_reset(struct dpu_kms_info *info)
{
if (info) {
info->len = 0;
info->staged_len = 0;
}
}
void dpu_kms_info_add_keyint(struct dpu_kms_info *info,
const char *key,
int64_t value)
{
uint32_t len;
if (info && key) {
len = snprintf(info->data + info->len,
DPU_KMS_INFO_MAX_SIZE - info->len,
"%s=%lld\n",
key,
value);
/* check if snprintf truncated the string */
if ((info->len + len) < DPU_KMS_INFO_MAX_SIZE)
info->len += len;
}
}
void dpu_kms_info_add_keystr(struct dpu_kms_info *info,
const char *key,
const char *value)
{
uint32_t len;
if (info && key && value) {
len = snprintf(info->data + info->len,
DPU_KMS_INFO_MAX_SIZE - info->len,
"%s=%s\n",
key,
value);
/* check if snprintf truncated the string */
if ((info->len + len) < DPU_KMS_INFO_MAX_SIZE)
info->len += len;
}
}
void dpu_kms_info_start(struct dpu_kms_info *info,
const char *key)
{
uint32_t len;
if (info && key) {
len = snprintf(info->data + info->len,
DPU_KMS_INFO_MAX_SIZE - info->len,
"%s=",
key);
info->start = true;
/* check if snprintf truncated the string */
if ((info->len + len) < DPU_KMS_INFO_MAX_SIZE)
info->staged_len = info->len + len;
}
}
void dpu_kms_info_append(struct dpu_kms_info *info,
const char *str)
{
uint32_t len;
if (info) {
len = snprintf(info->data + info->staged_len,
DPU_KMS_INFO_MAX_SIZE - info->staged_len,
"%s",
str);
/* check if snprintf truncated the string */
if ((info->staged_len + len) < DPU_KMS_INFO_MAX_SIZE) {
info->staged_len += len;
info->start = false;
}
}
}
void dpu_kms_info_append_format(struct dpu_kms_info *info,
uint32_t pixel_format,
uint64_t modifier)
{
uint32_t len;
if (!info)
return;
if (modifier) {
len = snprintf(info->data + info->staged_len,
DPU_KMS_INFO_MAX_SIZE - info->staged_len,
info->start ?
"%c%c%c%c/%llX/%llX" : " %c%c%c%c/%llX/%llX",
(pixel_format >> 0) & 0xFF,
(pixel_format >> 8) & 0xFF,
(pixel_format >> 16) & 0xFF,
(pixel_format >> 24) & 0xFF,
(modifier >> 56) & 0xFF,
modifier & ((1ULL << 56) - 1));
} else {
len = snprintf(info->data + info->staged_len,
DPU_KMS_INFO_MAX_SIZE - info->staged_len,
info->start ?
"%c%c%c%c" : " %c%c%c%c",
(pixel_format >> 0) & 0xFF,
(pixel_format >> 8) & 0xFF,
(pixel_format >> 16) & 0xFF,
(pixel_format >> 24) & 0xFF);
}
/* check if snprintf truncated the string */
if ((info->staged_len + len) < DPU_KMS_INFO_MAX_SIZE) {
info->staged_len += len;
info->start = false;
}
}
void dpu_kms_info_stop(struct dpu_kms_info *info)
{
uint32_t len;
if (info) {
/* insert final delimiter */
len = snprintf(info->data + info->staged_len,
DPU_KMS_INFO_MAX_SIZE - info->staged_len,
"\n");
/* check if snprintf truncated the string */
if ((info->staged_len + len) < DPU_KMS_INFO_MAX_SIZE)
info->len = info->staged_len + len;
}
}
|
