Commit | Line | Data |
---|---|---|
c6e3fd22 WH |
1 | /* |
2 | * originally written by: Kirk Reiser <kirk@braille.uwo.ca> | |
3 | * this version considerably modified by David Borowski, david575@rogers.com | |
4 | * | |
5 | * Copyright (C) 1998-99 Kirk Reiser. | |
6 | * Copyright (C) 2003 David Borowski. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | * specificly written as a driver for the speakup screenreview | |
23 | * s not a general device driver. | |
24 | */ | |
25 | #include <linux/jiffies.h> | |
26 | #include <linux/sched.h> | |
27 | #include <linux/timer.h> | |
28 | #include <linux/kthread.h> | |
29 | ||
30 | #include "spk_priv.h" | |
31 | #include "serialio.h" | |
32 | #include "speakup.h" | |
33 | ||
34 | #define DRV_VERSION "2.14" | |
35 | #define SYNTH_CLEAR 0x03 | |
36 | #define PROCSPEECH 0x0b | |
37 | static unsigned char last_char; | |
3d4f7eaf CB |
38 | |
39 | static inline u_char get_last_char(void) | |
40 | { | |
41 | u_char avail = inb_p(speakup_info.port_tts + UART_LSR) & UART_LSR_DR; | |
42 | if (avail) | |
43 | last_char = inb_p(speakup_info.port_tts + UART_RX); | |
44 | return last_char; | |
45 | } | |
46 | ||
47 | static inline bool synth_full(void) | |
48 | { | |
49 | return get_last_char() == 0x13; | |
50 | } | |
c6e3fd22 WH |
51 | |
52 | static void do_catch_up(struct spk_synth *synth); | |
53 | static void synth_flush(struct spk_synth *synth); | |
54 | ||
55 | static int in_escape; | |
56 | ||
57 | static struct var_t vars[] = { | |
3d4f7eaf CB |
58 | { CAPS_START, .u.s = {"[:dv ap 222]" } }, |
59 | { CAPS_STOP, .u.s = {"[:dv ap 100]" } }, | |
60 | { RATE, .u.n = {"[:ra %d]", 7, 0, 9, 150, 25, NULL } }, | |
61 | { PITCH, .u.n = {"[:dv ap %d]", 100, 0, 100, 0, 0, NULL } }, | |
62 | { VOL, .u.n = {"[:dv gv %d]", 13, 0, 16, 0, 5, NULL } }, | |
63 | { PUNCT, .u.n = {"[:pu %c]", 0, 0, 2, 0, 0, "nsa" } }, | |
64 | { VOICE, .u.n = {"[:n%c]", 0, 0, 9, 0, 0, "phfdburwkv" } }, | |
65 | { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, | |
c6e3fd22 WH |
66 | V_LAST_VAR |
67 | }; | |
68 | ||
69 | /* | |
70 | * These attributes will appear in /sys/accessibility/speakup/decext. | |
71 | */ | |
72 | static struct kobj_attribute caps_start_attribute = | |
73 | __ATTR(caps_start, USER_RW, spk_var_show, spk_var_store); | |
74 | static struct kobj_attribute caps_stop_attribute = | |
75 | __ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store); | |
76 | static struct kobj_attribute pitch_attribute = | |
77 | __ATTR(pitch, USER_RW, spk_var_show, spk_var_store); | |
78 | static struct kobj_attribute punct_attribute = | |
79 | __ATTR(punct, USER_RW, spk_var_show, spk_var_store); | |
80 | static struct kobj_attribute rate_attribute = | |
81 | __ATTR(rate, USER_RW, spk_var_show, spk_var_store); | |
82 | static struct kobj_attribute voice_attribute = | |
83 | __ATTR(voice, USER_RW, spk_var_show, spk_var_store); | |
84 | static struct kobj_attribute vol_attribute = | |
85 | __ATTR(vol, USER_RW, spk_var_show, spk_var_store); | |
86 | ||
87 | static struct kobj_attribute delay_time_attribute = | |
88 | __ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store); | |
89 | static struct kobj_attribute direct_attribute = | |
90 | __ATTR(direct, USER_RW, spk_var_show, spk_var_store); | |
91 | static struct kobj_attribute full_time_attribute = | |
92 | __ATTR(full_time, ROOT_W, spk_var_show, spk_var_store); | |
93 | static struct kobj_attribute jiffy_delta_attribute = | |
94 | __ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store); | |
95 | static struct kobj_attribute trigger_time_attribute = | |
96 | __ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store); | |
97 | ||
98 | /* | |
99 | * Create a group of attributes so that we can create and destroy them all | |
100 | * at once. | |
101 | */ | |
102 | static struct attribute *synth_attrs[] = { | |
103 | &caps_start_attribute.attr, | |
104 | &caps_stop_attribute.attr, | |
105 | &pitch_attribute.attr, | |
106 | &punct_attribute.attr, | |
107 | &rate_attribute.attr, | |
108 | &voice_attribute.attr, | |
109 | &vol_attribute.attr, | |
110 | &delay_time_attribute.attr, | |
111 | &direct_attribute.attr, | |
112 | &full_time_attribute.attr, | |
113 | &jiffy_delta_attribute.attr, | |
114 | &trigger_time_attribute.attr, | |
115 | NULL, /* need to NULL terminate the list of attributes */ | |
116 | }; | |
117 | ||
118 | static struct spk_synth synth_decext = { | |
119 | .name = "decext", | |
120 | .version = DRV_VERSION, | |
121 | .long_name = "Dectalk External", | |
122 | .init = "[:pe -380]", | |
123 | .procspeech = PROCSPEECH, | |
124 | .clear = SYNTH_CLEAR, | |
125 | .delay = 500, | |
126 | .trigger = 50, | |
127 | .jiffies = 50, | |
128 | .full = 40000, | |
129 | .flags = SF_DEC, | |
130 | .startup = SYNTH_START, | |
131 | .checkval = SYNTH_CHECK, | |
132 | .vars = vars, | |
ca2beaf8 | 133 | .probe = spk_serial_synth_probe, |
c6e3fd22 WH |
134 | .release = spk_serial_release, |
135 | .synth_immediate = spk_synth_immediate, | |
136 | .catch_up = do_catch_up, | |
137 | .flush = synth_flush, | |
138 | .is_alive = spk_synth_is_alive_restart, | |
139 | .synth_adjust = NULL, | |
140 | .read_buff_add = NULL, | |
141 | .get_index = NULL, | |
142 | .indexing = { | |
143 | .command = NULL, | |
144 | .lowindex = 0, | |
145 | .highindex = 0, | |
146 | .currindex = 0, | |
147 | }, | |
148 | .attributes = { | |
149 | .attrs = synth_attrs, | |
150 | .name = "decext", | |
151 | }, | |
152 | }; | |
153 | ||
154 | static void do_catch_up(struct spk_synth *synth) | |
155 | { | |
156 | u_char ch; | |
157 | static u_char last = '\0'; | |
158 | unsigned long flags; | |
159 | unsigned long jiff_max; | |
160 | struct var_t *jiffy_delta; | |
161 | struct var_t *delay_time; | |
162 | int jiffy_delta_val = 0; | |
163 | int delay_time_val = 0; | |
164 | ||
ca2beaf8 ST |
165 | jiffy_delta = spk_get_var(JIFFY); |
166 | delay_time = spk_get_var(DELAY); | |
c6e3fd22 WH |
167 | |
168 | spk_lock(flags); | |
169 | jiffy_delta_val = jiffy_delta->u.n.value; | |
170 | spk_unlock(flags); | |
171 | jiff_max = jiffies + jiffy_delta_val; | |
172 | ||
173 | while (!kthread_should_stop()) { | |
174 | spk_lock(flags); | |
175 | if (speakup_info.flushing) { | |
176 | speakup_info.flushing = 0; | |
177 | spk_unlock(flags); | |
178 | synth->flush(synth); | |
179 | continue; | |
180 | } | |
181 | if (synth_buffer_empty()) { | |
182 | spk_unlock(flags); | |
183 | break; | |
184 | } | |
185 | ch = synth_buffer_peek(); | |
186 | set_current_state(TASK_INTERRUPTIBLE); | |
187 | delay_time_val = delay_time->u.n.value; | |
188 | spk_unlock(flags); | |
189 | if (ch == '\n') | |
190 | ch = 0x0D; | |
191 | if (synth_full() || !spk_serial_out(ch)) { | |
192 | schedule_timeout(msecs_to_jiffies(delay_time_val)); | |
193 | continue; | |
194 | } | |
195 | set_current_state(TASK_RUNNING); | |
196 | spk_lock(flags); | |
197 | synth_buffer_getc(); | |
198 | spk_unlock(flags); | |
199 | if (ch == '[') | |
200 | in_escape = 1; | |
201 | else if (ch == ']') | |
202 | in_escape = 0; | |
203 | else if (ch <= SPACE) { | |
204 | if (!in_escape && strchr(",.!?;:", last)) | |
205 | spk_serial_out(PROCSPEECH); | |
206 | if (jiffies >= jiff_max) { | |
3d4f7eaf | 207 | if (!in_escape) |
c6e3fd22 WH |
208 | spk_serial_out(PROCSPEECH); |
209 | spk_lock(flags); | |
210 | jiffy_delta_val = jiffy_delta->u.n.value; | |
211 | delay_time_val = delay_time->u.n.value; | |
212 | spk_unlock(flags); | |
3d4f7eaf CB |
213 | schedule_timeout(msecs_to_jiffies |
214 | (delay_time_val)); | |
c6e3fd22 WH |
215 | jiff_max = jiffies + jiffy_delta_val; |
216 | } | |
217 | } | |
218 | last = ch; | |
219 | } | |
220 | if (!in_escape) | |
221 | spk_serial_out(PROCSPEECH); | |
222 | } | |
223 | ||
224 | static void synth_flush(struct spk_synth *synth) | |
225 | { | |
226 | in_escape = 0; | |
227 | spk_synth_immediate(synth, "\033P;10z\033\\"); | |
228 | } | |
229 | ||
230 | module_param_named(ser, synth_decext.ser, int, S_IRUGO); | |
231 | module_param_named(start, synth_decext.startup, short, S_IRUGO); | |
232 | ||
233 | MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based)."); | |
234 | MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); | |
235 | ||
236 | static int __init decext_init(void) | |
237 | { | |
238 | return synth_add(&synth_decext); | |
239 | } | |
240 | ||
241 | static void __exit decext_exit(void) | |
242 | { | |
243 | synth_remove(&synth_decext); | |
244 | } | |
245 | ||
246 | module_init(decext_init); | |
247 | module_exit(decext_exit); | |
248 | MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); | |
249 | MODULE_AUTHOR("David Borowski"); | |
250 | MODULE_DESCRIPTION("Speakup support for DECtalk External synthesizers"); | |
251 | MODULE_LICENSE("GPL"); | |
252 | MODULE_VERSION(DRV_VERSION); | |
253 |