| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame] | 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 | typedef void (fn_handler_fn)(struct kbd_data *); |
| 18 | |
| 19 | /* |
| 20 | * FIXME: explain key_maps tricks. |
| 21 | */ |
| 22 | |
| 23 | struct kbd_data { |
| 24 | struct tty_port *port; |
| 25 | unsigned short **key_maps; |
| 26 | char **func_table; |
| 27 | fn_handler_fn **fn_handler; |
| 28 | struct kbdiacruc *accent_table; |
| 29 | unsigned int accent_table_size; |
| 30 | unsigned int diacr; |
| 31 | unsigned short sysrq; |
| 32 | }; |
| 33 | |
| 34 | struct kbd_data *kbd_alloc(void); |
| 35 | void kbd_free(struct kbd_data *); |
| 36 | void kbd_ascebc(struct kbd_data *, unsigned char *); |
| 37 | |
| 38 | void kbd_keycode(struct kbd_data *, unsigned int); |
| 39 | int kbd_ioctl(struct kbd_data *, unsigned int, unsigned long); |
| 40 | |
| 41 | /* |
| 42 | * Helper Functions. |
| 43 | */ |
| 44 | static inline void |
| 45 | kbd_put_queue(struct tty_port *port, int ch) |
| 46 | { |
| 47 | tty_insert_flip_char(port, ch, 0); |
| 48 | tty_schedule_flip(port); |
| 49 | } |
| 50 | |
| 51 | static inline void |
| 52 | kbd_puts_queue(struct tty_port *port, char *cp) |
| 53 | { |
| 54 | while (*cp) |
| 55 | tty_insert_flip_char(port, *cp++, 0); |
| 56 | tty_schedule_flip(port); |
| 57 | } |