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21#include <linux/unistd.h>
22#include <linux/proc_fs.h>
23#include <linux/jiffies.h>
24#include <linux/spinlock.h>
25#include <linux/sched.h>
26#include <linux/timer.h>
27#include <linux/kthread.h>
28#include "speakup.h"
29#include "spk_priv.h"
30
31#define DRV_VERSION "2.20"
32#define SYNTH_CLEAR 0x03
33#define PROCSPEECH 0x0b
34static int xoff;
35
36static inline int synth_full(void)
37{
38 return xoff;
39}
40
41static void do_catch_up(struct spk_synth *synth);
42static void synth_flush(struct spk_synth *synth);
43static void read_buff_add(u_char c);
44static unsigned char get_index(struct spk_synth *synth);
45
46static int in_escape;
47static int is_flushing;
48
49static spinlock_t flush_lock;
50static DECLARE_WAIT_QUEUE_HEAD(flush);
51
52static struct var_t vars[] = {
53 { CAPS_START, .u.s = {"[:dv ap 160] " } },
54 { CAPS_STOP, .u.s = {"[:dv ap 100 ] " } },
55 { RATE, .u.n = {"[:ra %d] ", 180, 75, 650, 0, 0, NULL } },
56 { PITCH, .u.n = {"[:dv ap %d] ", 122, 50, 350, 0, 0, NULL } },
57 { VOL, .u.n = {"[:dv g5 %d] ", 86, 60, 86, 0, 0, NULL } },
58 { PUNCT, .u.n = {"[:pu %c] ", 0, 0, 2, 0, 0, "nsa" } },
59 { VOICE, .u.n = {"[:n%c] ", 0, 0, 9, 0, 0, "phfdburwkv" } },
60 { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
61 V_LAST_VAR
62};
63
64
65
66
67static struct kobj_attribute caps_start_attribute =
68 __ATTR(caps_start, 0644, spk_var_show, spk_var_store);
69static struct kobj_attribute caps_stop_attribute =
70 __ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
71static struct kobj_attribute pitch_attribute =
72 __ATTR(pitch, 0644, spk_var_show, spk_var_store);
73static struct kobj_attribute punct_attribute =
74 __ATTR(punct, 0644, spk_var_show, spk_var_store);
75static struct kobj_attribute rate_attribute =
76 __ATTR(rate, 0644, spk_var_show, spk_var_store);
77static struct kobj_attribute voice_attribute =
78 __ATTR(voice, 0644, spk_var_show, spk_var_store);
79static struct kobj_attribute vol_attribute =
80 __ATTR(vol, 0644, spk_var_show, spk_var_store);
81
82static struct kobj_attribute delay_time_attribute =
83 __ATTR(delay_time, 0644, spk_var_show, spk_var_store);
84static struct kobj_attribute direct_attribute =
85 __ATTR(direct, 0644, spk_var_show, spk_var_store);
86static struct kobj_attribute full_time_attribute =
87 __ATTR(full_time, 0644, spk_var_show, spk_var_store);
88static struct kobj_attribute jiffy_delta_attribute =
89 __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
90static struct kobj_attribute trigger_time_attribute =
91 __ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
92
93
94
95
96
97static struct attribute *synth_attrs[] = {
98 &caps_start_attribute.attr,
99 &caps_stop_attribute.attr,
100 &pitch_attribute.attr,
101 &punct_attribute.attr,
102 &rate_attribute.attr,
103 &voice_attribute.attr,
104 &vol_attribute.attr,
105 &delay_time_attribute.attr,
106 &direct_attribute.attr,
107 &full_time_attribute.attr,
108 &jiffy_delta_attribute.attr,
109 &trigger_time_attribute.attr,
110 NULL,
111};
112
113static int ap_defaults[] = {122, 89, 155, 110, 208, 240, 200, 106, 306};
114static int g5_defaults[] = {86, 81, 86, 84, 81, 80, 83, 83, 73};
115
116static struct spk_synth synth_dectlk = {
117 .name = "dectlk",
118 .version = DRV_VERSION,
119 .long_name = "Dectalk Express",
120 .init = "[:error sp :name paul :rate 180 :tsr off] ",
121 .procspeech = PROCSPEECH,
122 .clear = SYNTH_CLEAR,
123 .delay = 500,
124 .trigger = 50,
125 .jiffies = 50,
126 .full = 40000,
127 .dev_name = SYNTH_DEFAULT_DEV,
128 .startup = SYNTH_START,
129 .checkval = SYNTH_CHECK,
130 .vars = vars,
131 .default_pitch = ap_defaults,
132 .default_vol = g5_defaults,
133 .io_ops = &spk_ttyio_ops,
134 .probe = spk_ttyio_synth_probe,
135 .release = spk_ttyio_release,
136 .synth_immediate = spk_ttyio_synth_immediate,
137 .catch_up = do_catch_up,
138 .flush = synth_flush,
139 .is_alive = spk_synth_is_alive_restart,
140 .synth_adjust = NULL,
141 .read_buff_add = read_buff_add,
142 .get_index = get_index,
143 .indexing = {
144 .command = "[:in re %d ] ",
145 .lowindex = 1,
146 .highindex = 8,
147 .currindex = 1,
148 },
149 .attributes = {
150 .attrs = synth_attrs,
151 .name = "dectlk",
152 },
153};
154
155static int is_indnum(u_char *ch)
156{
157 if ((*ch >= '0') && (*ch <= '9')) {
158 *ch = *ch - '0';
159 return 1;
160 }
161 return 0;
162}
163
164static u_char lastind;
165
166static unsigned char get_index(struct spk_synth *synth)
167{
168 u_char rv;
169
170 rv = lastind;
171 lastind = 0;
172 return rv;
173}
174
175static void read_buff_add(u_char c)
176{
177 static int ind = -1;
178
179 if (c == 0x01) {
180 unsigned long flags;
181
182 spin_lock_irqsave(&flush_lock, flags);
183 is_flushing = 0;
184 wake_up_interruptible(&flush);
185 spin_unlock_irqrestore(&flush_lock, flags);
186 } else if (c == 0x13) {
187 xoff = 1;
188 } else if (c == 0x11) {
189 xoff = 0;
190 } else if (is_indnum(&c)) {
191 if (ind == -1)
192 ind = c;
193 else
194 ind = ind * 10 + c;
195 } else if ((c > 31) && (c < 127)) {
196 if (ind != -1)
197 lastind = (u_char)ind;
198 ind = -1;
199 }
200}
201
202static void do_catch_up(struct spk_synth *synth)
203{
204 int synth_full_val = 0;
205 static u_char ch;
206 static u_char last = '\0';
207 unsigned long flags;
208 unsigned long jiff_max;
209 unsigned long timeout = msecs_to_jiffies(4000);
210 DEFINE_WAIT(wait);
211 struct var_t *jiffy_delta;
212 struct var_t *delay_time;
213 int jiffy_delta_val;
214 int delay_time_val;
215
216 jiffy_delta = spk_get_var(JIFFY);
217 delay_time = spk_get_var(DELAY);
218 spin_lock_irqsave(&speakup_info.spinlock, flags);
219 jiffy_delta_val = jiffy_delta->u.n.value;
220 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
221 jiff_max = jiffies + jiffy_delta_val;
222
223 while (!kthread_should_stop()) {
224
225 spin_lock_irqsave(&flush_lock, flags);
226 while (is_flushing && timeout) {
227 prepare_to_wait(&flush, &wait, TASK_INTERRUPTIBLE);
228 spin_unlock_irqrestore(&flush_lock, flags);
229 timeout = schedule_timeout(timeout);
230 spin_lock_irqsave(&flush_lock, flags);
231 }
232 finish_wait(&flush, &wait);
233 is_flushing = 0;
234 spin_unlock_irqrestore(&flush_lock, flags);
235
236 spin_lock_irqsave(&speakup_info.spinlock, flags);
237 if (speakup_info.flushing) {
238 speakup_info.flushing = 0;
239 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
240 synth->flush(synth);
241 continue;
242 }
243 synth_buffer_skip_nonlatin1();
244 if (synth_buffer_empty()) {
245 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
246 break;
247 }
248 ch = synth_buffer_peek();
249 set_current_state(TASK_INTERRUPTIBLE);
250 delay_time_val = delay_time->u.n.value;
251 synth_full_val = synth_full();
252 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
253 if (ch == '\n')
254 ch = 0x0D;
255 if (synth_full_val || !synth->io_ops->synth_out(synth, ch)) {
256 schedule_timeout(msecs_to_jiffies(delay_time_val));
257 continue;
258 }
259 set_current_state(TASK_RUNNING);
260 spin_lock_irqsave(&speakup_info.spinlock, flags);
261 synth_buffer_getc();
262 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
263 if (ch == '[') {
264 in_escape = 1;
265 } else if (ch == ']') {
266 in_escape = 0;
267 } else if (ch <= SPACE) {
268 if (!in_escape && strchr(",.!?;:", last))
269 synth->io_ops->synth_out(synth, PROCSPEECH);
270 if (time_after_eq(jiffies, jiff_max)) {
271 if (!in_escape)
272 synth->io_ops->synth_out(synth, PROCSPEECH);
273 spin_lock_irqsave(&speakup_info.spinlock,
274 flags);
275 jiffy_delta_val = jiffy_delta->u.n.value;
276 delay_time_val = delay_time->u.n.value;
277 spin_unlock_irqrestore(&speakup_info.spinlock,
278 flags);
279 schedule_timeout(msecs_to_jiffies
280 (delay_time_val));
281 jiff_max = jiffies + jiffy_delta_val;
282 }
283 }
284 last = ch;
285 }
286 if (!in_escape)
287 synth->io_ops->synth_out(synth, PROCSPEECH);
288}
289
290static void synth_flush(struct spk_synth *synth)
291{
292 if (in_escape)
293
294 synth->io_ops->synth_out(synth, ']');
295 in_escape = 0;
296 is_flushing = 1;
297 synth->io_ops->flush_buffer();
298 synth->io_ops->synth_out(synth, SYNTH_CLEAR);
299}
300
301module_param_named(ser, synth_dectlk.ser, int, 0444);
302module_param_named(dev, synth_dectlk.dev_name, charp, 0444);
303module_param_named(start, synth_dectlk.startup, short, 0444);
304
305MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
306MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
307MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
308
309module_spk_synth(synth_dectlk);
310
311MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
312MODULE_AUTHOR("David Borowski");
313MODULE_DESCRIPTION("Speakup support for DECtalk Express synthesizers");
314MODULE_LICENSE("GPL");
315MODULE_VERSION(DRV_VERSION);
316
317
