1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #define _GNU_SOURCE 17 18 #include <stdio.h> 19 #include <sys/stat.h> 20 #include <sys/types.h> 21 #include <sys/wait.h> 22 #include <fcntl.h> 23 #include <unistd.h> 24 #include <sys/ioctl.h> 25 #include <linux/fb.h> 26 #include <stdlib.h> 27 #include <string.h> 28 29 #define MSMFB_IOCTL_MAGIC 'm' 30 #define MSMFB_CURSOR _IOW(MSMFB_IOCTL_MAGIC, 130, struct fb_cursor) 31 32 int call_ioctl(int file_desc, unsigned long request, void* param) 33 { 34 int ret_val; 35 36 ret_val = ioctl(file_desc, request, param); 37 38 if (ret_val < 0) { 39 return ret_val; 40 } 41 return ret_val; 42 } 43 44 int test_mdss_msm_fb(int file_desc) 45 { 46 int ret_val; 47 unsigned char* buf = malloc(0x100); 48 struct fb_cursor cursor; 49 50 memset(&cursor, 0, sizeof(struct fb_cursor )); 51 52 cursor.set = FB_CUR_SETIMAGE; 53 cursor.enable = 1; 54 cursor.rop = 0; 55 cursor.mask = 0; 56 cursor.hot.x = 0x100; 57 cursor.hot.y = 0x100; 58 cursor.image.dx = 1439; 59 cursor.image.dy = 2559; 60 cursor.image.width = 0x1000; 61 cursor.image.height = 0x1000; 62 cursor.image.fg_color = 0xff; 63 cursor.image.bg_color = 0xff00; 64 cursor.image.depth = 32; 65 cursor.image.data = malloc(cursor.image.width * cursor.image.height * 0x4 ); 66 67 ret_val = call_ioctl(file_desc, MSMFB_CURSOR, &cursor ); 68 if(ret_val < 0) { 69 return ret_val; 70 } 71 72 free((void *)cursor.image.data); 73 free(buf); 74 75 return ret_val; 76 } 77 78 int main() 79 { 80 int file_desc, ret_val; 81 const char* DEVICE_FILE_NAME = "/dev/graphics/fb0"; 82 83 file_desc = open(DEVICE_FILE_NAME, 0); 84 if (file_desc < 0) { 85 return -1; 86 } 87 88 test_mdss_msm_fb(file_desc); 89 90 close(file_desc); 91 92 return 0; 93 } 94
