1 /*
2 * Copyright (c) 2014, The Linux Foundation. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 * * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer in the documentation and/or other materials provided
12 * with the distribution.
13 * * Neither the name of The Linux Foundation nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29 #define LOG_NIDEBUG 0
30
31 #include <errno.h>
32 #include <string.h>
33 #include <sys/types.h>
34 #include <sys/stat.h>
35 #include <fcntl.h>
36 #include <dlfcn.h>
37 #include <stdlib.h>
38
39 #define LOG_TAG "QCOM PowerHAL"
40 #include <utils/Log.h>
41 #include <hardware/hardware.h>
42 #include <hardware/power.h>
43
44 #include "utils.h"
45 #include "metadata-defs.h"
46 #include "hint-data.h"
47 #include "performance.h"
48 #include "power-common.h"
49
50 static int display_hint_sent;
51
process_video_encode_hint(void * metadata)52 static int process_video_encode_hint(void *metadata)
53 {
54 char governor[80];
55 struct video_encode_metadata_t video_encode_metadata;
56
57 if (get_scaling_governor(governor, sizeof(governor)) == -1) {
58 ALOGE("Can't obtain scaling governor.");
59
60 return HINT_NONE;
61 }
62
63 /* Initialize encode metadata struct fields */
64 memset(&video_encode_metadata, 0, sizeof(struct video_encode_metadata_t));
65 video_encode_metadata.state = -1;
66 video_encode_metadata.hint_id = DEFAULT_VIDEO_ENCODE_HINT_ID;
67
68 if (metadata) {
69 if (parse_video_encode_metadata((char *)metadata, &video_encode_metadata) ==
70 -1) {
71 ALOGE("Error occurred while parsing metadata.");
72 return HINT_NONE;
73 }
74 } else {
75 return HINT_NONE;
76 }
77
78 if (video_encode_metadata.state == 1) {
79 if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
80 (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
81 /* sched and cpufreq params
82 * A57 - offlines
83 * A53 - 4 cores online at 1.2GHz
84 */
85 int resource_values[] = {0x150C, 0x160C, 0x170C, 0x180C, 0x3DFF};
86
87 perform_hint_action(video_encode_metadata.hint_id,
88 resource_values, sizeof(resource_values)/sizeof(resource_values[0]));
89 return HINT_HANDLED;
90 }
91 } else if (video_encode_metadata.state == 0) {
92 if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
93 (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
94 undo_hint_action(video_encode_metadata.hint_id);
95 return HINT_HANDLED;
96 }
97 }
98 return HINT_NONE;
99 }
100
power_hint_override(struct power_module * module,power_hint_t hint,void * data)101 int power_hint_override(struct power_module *module, power_hint_t hint, void *data)
102 {
103 int ret_val = HINT_NONE;
104 switch(hint) {
105 case POWER_HINT_VIDEO_ENCODE:
106 ret_val = process_video_encode_hint(data);
107 break;
108 default:
109 break;
110 }
111 return ret_val;
112 }
113
set_interactive_override(struct power_module * module,int on)114 int set_interactive_override(struct power_module *module, int on)
115 {
116 return HINT_HANDLED; /* Don't excecute this code path, not in use */
117 char governor[80];
118
119 if (get_scaling_governor(governor, sizeof(governor)) == -1) {
120 ALOGE("Can't obtain scaling governor.");
121
122 return HINT_NONE;
123 }
124
125 if (!on) {
126 /* Display off */
127 if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
128 (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
129 int resource_values[] = {}; /* dummy node */
130 if (!display_hint_sent) {
131 perform_hint_action(DISPLAY_STATE_HINT_ID,
132 resource_values, sizeof(resource_values)/sizeof(resource_values[0]));
133 display_hint_sent = 1;
134 return HINT_HANDLED;
135 }
136 }
137 } else {
138 /* Display on */
139 if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
140 (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
141 undo_hint_action(DISPLAY_STATE_HINT_ID);
142 display_hint_sent = 0;
143 return HINT_HANDLED;
144 }
145 }
146 return HINT_NONE;
147 }
148