1 /*
2 * Copyright (c) 2006-2023, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 */
9
10 #include "proc.h"
11 #include "procfs.h"
12
13 #include <rthw.h>
14 #include <rtdbg.h>
15
16 #include <fcntl.h>
17 #include <errno.h>
18
19 #include <dfs_dentry.h>
20
21
seq_start(struct dfs_seq_file * seq,off_t * index)22 static void *seq_start(struct dfs_seq_file *seq, off_t *index)
23 {
24 off_t i = *index; // seq->index
25
26 return NULL + (i == 0);
27 }
28
seq_stop(struct dfs_seq_file * seq,void * data)29 static void seq_stop(struct dfs_seq_file *seq, void *data)
30 {
31 }
32
seq_next(struct dfs_seq_file * seq,void * data,off_t * index)33 static void *seq_next(struct dfs_seq_file *seq, void *data, off_t *index)
34 {
35 /* data: The return value of the start or next*/
36 off_t i = *index + 1; // seq->index
37
38 *index = i;
39
40 return NULL;
41 }
42
seq_show(struct dfs_seq_file * seq,void * data)43 static int seq_show(struct dfs_seq_file *seq, void *data)
44 {
45 /* data: The return value of the start or next*/
46 dfs_seq_puts(seq, "todo\n");
47
48 return 0;
49 }
50
51 static const struct dfs_seq_ops seq_ops = {
52 .start = seq_start,
53 .stop = seq_stop,
54 .next = seq_next,
55 .show = seq_show,
56 };
57
proc_tty_register_driver(void * driver)58 void proc_tty_register_driver(void *driver)
59 {
60 //todo
61 }
62
proc_tty_unregister_driver(void * driver)63 void proc_tty_unregister_driver(void *driver)
64 {
65 //todo
66 }
67
proc_tty_init(void)68 int proc_tty_init(void)
69 {
70 struct proc_dentry *dentry;
71
72 dentry = proc_mkdir("tty", NULL);
73 if (!dentry)
74 return -1;
75
76 proc_release(dentry);
77
78 dentry = proc_mkdir("tty/ldisc", NULL);
79 proc_release(dentry);
80
81 dentry = proc_mkdir_mode("tty/driver", S_IRUSR|S_IXUSR, NULL);
82 proc_release(dentry);
83
84 dentry = proc_create_data("tty/ldiscs", 0, NULL, NULL, NULL);
85 if (dentry)
86 {
87 dentry->seq_ops = &seq_ops;
88 }
89 proc_release(dentry);
90
91 dentry = proc_create_data("tty/drivers", 0, NULL, NULL, NULL);
92 if (dentry)
93 {
94 dentry->seq_ops = &seq_ops;
95 }
96 proc_release(dentry);
97
98 return 0;
99 }
100 INIT_ENV_EXPORT(proc_tty_init);
101