1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * ebcdic keycode functions for s390 console drivers |
4 | * |
5 | * Copyright IBM Corp. 2003 |
6 | * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), |
7 | */ |
8 | |
9 | #include <linux/tty.h> |
10 | #include <linux/tty_flip.h> |
11 | #include <linux/keyboard.h> |
12 | |
13 | #define NR_FN_HANDLER 20 |
14 | |
15 | struct kbd_data; |
16 | |
17 | extern int ebc_funcbufsize, ebc_funcbufleft; |
18 | extern char *ebc_func_table[MAX_NR_FUNC]; |
19 | extern char ebc_func_buf[]; |
20 | extern char *ebc_funcbufptr; |
21 | extern unsigned int ebc_keymap_count; |
22 | |
23 | extern struct kbdiacruc ebc_accent_table[]; |
24 | extern unsigned int ebc_accent_table_size; |
25 | extern unsigned short *ebc_key_maps[MAX_NR_KEYMAPS]; |
26 | extern unsigned short ebc_plain_map[NR_KEYS]; |
27 | |
28 | typedef void (fn_handler_fn)(struct kbd_data *); |
29 | |
30 | /* |
31 | * FIXME: explain key_maps tricks. |
32 | */ |
33 | |
34 | struct kbd_data { |
35 | struct tty_port *port; |
36 | unsigned short **key_maps; |
37 | char **func_table; |
38 | fn_handler_fn **fn_handler; |
39 | struct kbdiacruc *accent_table; |
40 | unsigned int accent_table_size; |
41 | unsigned int diacr; |
42 | unsigned short sysrq; |
43 | }; |
44 | |
45 | struct kbd_data *kbd_alloc(void); |
46 | void kbd_free(struct kbd_data *); |
47 | void kbd_ascebc(struct kbd_data *, unsigned char *); |
48 | |
49 | void kbd_keycode(struct kbd_data *, unsigned int); |
50 | int kbd_ioctl(struct kbd_data *, unsigned int, unsigned long); |
51 | |
52 | /* |
53 | * Helper Functions. |
54 | */ |
55 | static inline void |
56 | kbd_put_queue(struct tty_port *port, int ch) |
57 | { |
58 | tty_insert_flip_char(port, ch, flag: 0); |
59 | tty_flip_buffer_push(port); |
60 | } |
61 | |
62 | static inline void |
63 | kbd_puts_queue(struct tty_port *port, char *cp) |
64 | { |
65 | while (*cp) |
66 | tty_insert_flip_char(port, ch: *cp++, flag: 0); |
67 | tty_flip_buffer_push(port); |
68 | } |
69 | |