xref: /linux/drivers/accessibility/speakup/spk_priv.h (revision 23de9e6a25d19e57875a7ca9daed2aeaf31d3bdc)
1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /* spk_priv.h
3  * review functions for the speakup screen review package.
4  * originally written by: Kirk Reiser and Andy Berdan.
5  *
6  * extensively modified by David Borowski.
7  *
8  * Copyright (C) 1998  Kirk Reiser.
9  * Copyright (C) 2003  David Borowski.
10  */
11 #ifndef _SPEAKUP_PRIVATE_H
12 #define _SPEAKUP_PRIVATE_H
13 
14 #include <linux/printk.h>
15 
16 #include "spk_types.h"
17 #include "spk_priv_keyinfo.h"
18 
19 #define V_LAST_VAR { MAXVARS }
20 #define SPACE 0x20
21 #define SYNTH_CHECK 20030716 /* today's date ought to do for check value */
22 /* synth flags, for odd synths */
23 #define SF_DEC 1 /* to fiddle puncs in alpha strings so it doesn't spell */
24 #ifdef MODULE
25 #define SYNTH_START 1
26 #else
27 #define SYNTH_START 0
28 #endif
29 
30 #define KT_SPKUP 15
31 #define SPK_SYNTH_TIMEOUT 100000 /* in micro-seconds */
32 #define SYNTH_DEFAULT_DEV "ttyS0"
33 #define SYNTH_DEFAULT_SER 0
34 
35 void spk_ttyio_release(struct spk_synth *synth);
36 void spk_ttyio_register_ldisc(void);
37 void spk_ttyio_unregister_ldisc(void);
38 
39 void synth_buffer_skip_nonlatin1(void);
40 u16 synth_buffer_getc(void);
41 u16 synth_buffer_peek(void);
42 int synth_buffer_empty(void);
43 struct var_t *spk_get_var(enum var_id_t var_id);
44 ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr,
45 		     char *buf);
46 ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
47 		      const char *buf, size_t count);
48 
49 int spk_ttyio_synth_probe(struct spk_synth *synth);
50 const char *spk_ttyio_synth_immediate(struct spk_synth *synth,
51 				      const char *buff);
52 void spk_do_catch_up(struct spk_synth *synth);
53 void spk_do_catch_up_unicode(struct spk_synth *synth);
54 void spk_synth_flush(struct spk_synth *synth);
55 unsigned char spk_synth_get_index(struct spk_synth *synth);
56 int spk_synth_is_alive_nop(struct spk_synth *synth);
57 int spk_synth_is_alive_restart(struct spk_synth *synth);
58 __printf(1, 2)
59 void synth_printf(const char *buf, ...);
60 void synth_putwc(u16 wc);
61 void synth_putwc_s(u16 wc);
62 void synth_putws(const u16 *buf);
63 void synth_putws_s(const u16 *buf);
64 int synth_request_region(unsigned long start, unsigned long n);
65 int synth_release_region(unsigned long start, unsigned long n);
66 int synth_add(struct spk_synth *in_synth);
67 void synth_remove(struct spk_synth *in_synth);
68 struct spk_synth *synth_current(void);
69 
70 extern struct speakup_info_t speakup_info;
71 
72 extern struct var_t synth_time_vars[];
73 
74 extern struct spk_io_ops spk_serial_io_ops;
75 extern struct spk_io_ops spk_ttyio_ops;
76 
77 #endif
78