1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * drivers/video/rockchip/video/vehicle_dev.c
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2022 Rockchip Electronics Co.Ltd
6*4882a593Smuzhiyun * Authors:
7*4882a593Smuzhiyun * Zhiqin Wei <wzq@rock-chips.com>
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun *
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/kernel.h>
13*4882a593Smuzhiyun #include <linux/version.h>
14*4882a593Smuzhiyun #include <linux/module.h>
15*4882a593Smuzhiyun #include <linux/types.h>
16*4882a593Smuzhiyun #include <linux/errno.h>
17*4882a593Smuzhiyun #include <linux/fcntl.h>
18*4882a593Smuzhiyun #include <linux/mm.h>
19*4882a593Smuzhiyun #include <linux/miscdevice.h>
20*4882a593Smuzhiyun #include <linux/proc_fs.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #include <linux/fs.h>
23*4882a593Smuzhiyun #include <linux/slab.h>
24*4882a593Smuzhiyun #include <linux/init.h>
25*4882a593Smuzhiyun #include <linux/uaccess.h>
26*4882a593Smuzhiyun #include <linux/io.h>
27*4882a593Smuzhiyun #include <linux/interrupt.h>
28*4882a593Smuzhiyun #include <linux/ioport.h>
29*4882a593Smuzhiyun #include <linux/string.h>
30*4882a593Smuzhiyun #include <linux/list.h>
31*4882a593Smuzhiyun #include <linux/delay.h>
32*4882a593Smuzhiyun #include <linux/timer.h>
33*4882a593Smuzhiyun #include <linux/delay.h>
34*4882a593Smuzhiyun #include <linux/proc_fs.h>
35*4882a593Smuzhiyun #include <linux/poll.h>
36*4882a593Smuzhiyun #include <linux/bitops.h>
37*4882a593Smuzhiyun #include <linux/moduleparam.h>
38*4882a593Smuzhiyun #include <linux/ioport.h>
39*4882a593Smuzhiyun #include <linux/interrupt.h>
40*4882a593Smuzhiyun #include "vehicle_main.h"
41*4882a593Smuzhiyun #include "vehicle_cfg.h"
42*4882a593Smuzhiyun
vechile_open(struct inode * inode,struct file * file)43*4882a593Smuzhiyun static int vechile_open(struct inode *inode, struct file *file)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun return 0;
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun
vechile_close(struct inode * inode,struct file * file)48*4882a593Smuzhiyun static int vechile_close(struct inode *inode, struct file *file)
49*4882a593Smuzhiyun {
50*4882a593Smuzhiyun return 0;
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
vechile_write(struct file * file,const char __user * buf,size_t size,loff_t * ppos)53*4882a593Smuzhiyun static ssize_t vechile_write(struct file *file, const char __user *buf,
54*4882a593Smuzhiyun size_t size, loff_t *ppos)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun int ret = 0;
57*4882a593Smuzhiyun char data[22] = "";
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun ret = copy_from_user(data, buf, 18);
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun if (ret)
62*4882a593Smuzhiyun return -1;
63*4882a593Smuzhiyun if (memcmp(data, "88", 2) == 0) {
64*4882a593Smuzhiyun vehicle_android_is_ready_notify();
65*4882a593Smuzhiyun VEHICLE_INFO("android already up, set vehicle in bottom\n");
66*4882a593Smuzhiyun } else {
67*4882a593Smuzhiyun vehicle_apk_state_change(data);
68*4882a593Smuzhiyun VEHICLE_INFO("apk_state_change, open dvr\n");
69*4882a593Smuzhiyun }
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun return size;
72*4882a593Smuzhiyun }
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun static ssize_t
vechile_read(struct file * file,char __user * buf,size_t size,loff_t * ppos)75*4882a593Smuzhiyun vechile_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
76*4882a593Smuzhiyun {
77*4882a593Smuzhiyun return 1;
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun static const struct file_operations vechile_fops = {
81*4882a593Smuzhiyun .owner = THIS_MODULE,
82*4882a593Smuzhiyun /*.compat_ioctl = vechile_ioctl,*/
83*4882a593Smuzhiyun .open = vechile_open,
84*4882a593Smuzhiyun .release = vechile_close,
85*4882a593Smuzhiyun .write = vechile_write,
86*4882a593Smuzhiyun .read = vechile_read,
87*4882a593Smuzhiyun };
88*4882a593Smuzhiyun
89*4882a593Smuzhiyun static struct miscdevice vechile_dev = {
90*4882a593Smuzhiyun .minor = MISC_DYNAMIC_MINOR,
91*4882a593Smuzhiyun .name = "vehicle",
92*4882a593Smuzhiyun .fops = &vechile_fops,
93*4882a593Smuzhiyun };
94*4882a593Smuzhiyun
vechile_module_init(void)95*4882a593Smuzhiyun static int __init vechile_module_init(void)
96*4882a593Smuzhiyun {
97*4882a593Smuzhiyun int ret = 0;
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun /* register misc device*/
100*4882a593Smuzhiyun ret = misc_register(&vechile_dev);
101*4882a593Smuzhiyun if (ret) {
102*4882a593Smuzhiyun VEHICLE_DGERR("ERROR: could not register vechile dev\n");
103*4882a593Smuzhiyun return ret;
104*4882a593Smuzhiyun }
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun return 0;
107*4882a593Smuzhiyun }
108*4882a593Smuzhiyun
vechile_module_exit(void)109*4882a593Smuzhiyun static void __exit vechile_module_exit(void)
110*4882a593Smuzhiyun {
111*4882a593Smuzhiyun misc_deregister(&vechile_dev);
112*4882a593Smuzhiyun }
113*4882a593Smuzhiyun
114*4882a593Smuzhiyun module_init(vechile_module_init);
115*4882a593Smuzhiyun module_exit(vechile_module_exit);
116*4882a593Smuzhiyun
117*4882a593Smuzhiyun MODULE_LICENSE("GPL");
118