path: root/amavutils/amdisplayutils.c (plain)
blob: af8e5a3d69c20c57da538d5bc9bc2ffc0f299876

1	/*
2	* Copyright (c) 2014 Amlogic, Inc. All rights reserved.
3	*
4	* This source code is subject to the terms and conditions defined in the
5	* file 'LICENSE' which is part of this source code package.
6	*
7	* Description:
8	*/
9
10
11
12	#define LOG_TAG "amavutils"
13
14	#include <stdlib.h>
15	#include <fcntl.h>
16	#include <errno.h>
17	#include <string.h>
18	#include <cutils/log.h>
19	#include <sys/ioctl.h>
20	#include "include/Amdisplayutils.h"
21	#include "include/Amsysfsutils.h"
22
23
24	#define FB_DEVICE_PATH "/sys/class/graphics/fb0/virtual_size"
25	#define SCALE_AXIS_PATH "/sys/class/graphics/fb0/scale_axis"
26	#define SCALE_PATH "/sys/class/graphics/fb0/scale"
27	#define SCALE_REQUEST "/sys/class/graphics/fb0/request2XScale"
28	#define OSD_ROTATION_PATH "/sys/class/graphics/fb0/prot_angle"
29	#define OSD_ROTATION_ON "/sys/class/graphics/fb0/prot_on"
30	#define SYSCMD_BUFSIZE 40
31
32
33	//Temp solution, finally we will move out all the functions about display,
34	//it should be not part of player.
35	#ifndef FB_BUFFER_NUM
36	#define FB_BUFFER_NUM (2)
37	#endif
38
39	#ifndef LOGD
40	#define LOGV ALOGV
41	#define LOGD ALOGD
42	#define LOGI ALOGI
43	#define LOGW ALOGW
44	#define LOGE ALOGE
45	#endif
46
47	//#define LOG_FUNCTION_NAME LOGI("%s-%d\n",__FUNCTION__,__LINE__);
48	#define LOG_FUNCTION_NAME
49
50	static void get_display_mode(char *mode)
51	{
52	int fd;
53	char *path = "/sys/class/display/mode";
54	if (!mode) {
55	LOGE("[get_display_mode]Invalide parameter!");
56	return;
57	}
58	fd = open(path, O_RDONLY);
59	if (fd >= 0) {
60	memset(mode, 0, 16); // clean buffer and read 15 byte to avoid strlen > 15
61	read(fd, mode, 15);
62	LOGI("[get_display_mode]mode=%s strlen=%d\n", mode, strlen(mode));
63	mode[strlen(mode)] = '\0';
64	close(fd);
65	} else {
66	sprintf(mode, "%s", "fail");
67	};
68	LOGI("[get_display_mode]display_mode=%s\n", mode);
69	return ;
70	}
71	int amdisplay_utils_get_size(int *width, int *height)
72	{
73	LOG_FUNCTION_NAME
74	char buf[SYSCMD_BUFSIZE];
75	int disp_w = 0;
76	int disp_h = 0;
77	int ret;
78	ret = amsysfs_get_sysfs_str(FB_DEVICE_PATH, buf, SYSCMD_BUFSIZE);
79	if (ret < 0) {
80	return ret;
81	}
82	if (sscanf(buf, "%d,%d", &disp_w, &disp_h) == 2) {
83	LOGI("disp resolution %dx%d\n", disp_w, disp_h);
84	disp_h = disp_h / FB_BUFFER_NUM;
85	} else {
86	return -2;/*format unknow*/
87	}
88	*width = disp_w;
89	*height = disp_h;
90	return 0;
91	}
92
93	#define FB_DEVICE_PATH_FB2 "/sys/class/graphics/fb2/virtual_size"
94	int amdisplay_utils_get_size_fb2(int *width, int *height)
95	{
96	LOG_FUNCTION_NAME
97	char buf[SYSCMD_BUFSIZE];
98	int disp_w = 0;
99	int disp_h = 0;
100	int ret;
101	ret = amsysfs_get_sysfs_str(FB_DEVICE_PATH_FB2, buf, SYSCMD_BUFSIZE);
102	if (ret < 0) {
103	return ret;
104	}
105	if (sscanf(buf, "%d,%d", &disp_w, &disp_h) == 2) {
106	LOGI("disp resolution %dx%d\n", disp_w, disp_h);
107	disp_h = disp_h / FB_BUFFER_NUM;
108	} else {
109	return -2;/*format unknow*/
110	}
111	*width = disp_w;
112	*height = disp_h;
113	return 0;
114	}
115
116	int amdisplay_utils_set_scale_mode(int scale_wx, int scale_hx)
117	{
118	int width, height;
119	int ret;
120	int neww, newh;
121	char buf[40];
122
123	/*scale mode only support x2,x1*/
124	if ((scale_wx != 1 && scale_wx != 2) || (scale_hx != 1 && scale_hx != 2)) {
125	LOGI("unsupport scaling mode,x1,x2 only\n", scale_wx, scale_hx);
126	return -1;
127	}
128
129	if (scale_wx == 2) {
130	ret = amsysfs_set_sysfs_str(SCALE_REQUEST, "1");
131	} else if (scale_wx == 1) {
132	ret = amsysfs_set_sysfs_str(SCALE_REQUEST, "2");
133	}
134
135	if (ret < 0) {
136	LOGI("set [%s]=[%s] failed\n", SCALE_AXIS_PATH, buf);
137	return -2;
138	}
139
140	return ret;
141	}
142
143
144	int amdisplay_utils_get_osd_rotation()
145	{
146	char buf[40];
147	int ret;
148
149	ret = amsysfs_get_sysfs_str(OSD_ROTATION_ON, buf, SYSCMD_BUFSIZE);
150	if ((ret < 0) || strstr(buf, "OFF")) {
151	return 0;//no rotation+
152	}
153	memset(buf, 0 , 40);
154
155
156	ret = amsysfs_get_sysfs_str(OSD_ROTATION_PATH, buf, SYSCMD_BUFSIZE);
157	if (ret < 0) {
158	return 0; //no rotation
159	}
160
161	int rotation = 0;
162	if (sscanf(buf, "osd_rotate:%d", &rotation) == 1) {
163	LOGI("get osd rotation %d\n", rotation);
164	}
165
166	switch (rotation) {
167	case 0:
168	rotation = 0;
169	break;
170	case 1:
171	rotation = 90;
172	break;
173	case 2:
174	rotation = 270;
175	break;
176	default:
177	break;
178	}
179
180	LOGD("amdisplay_utils_get_osd_rotation return %d", rotation);
181	return rotation;
182	}
183
184
185