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26#include <linux/jiffies.h>
27#include <linux/sched.h>
28#include <linux/timer.h>
29#include <linux/kthread.h>
30
31#include "spk_priv.h"
32#include "serialio.h"
33#include "speakup_dtlk.h"
34#include "speakup.h"
35
36#define DRV_VERSION "2.10"
37#define PROCSPEECH 0x00
38
39static int synth_probe(struct spk_synth *synth);
40static void dtlk_release(void);
41static const char *synth_immediate(struct spk_synth *synth, const char *buf);
42static void do_catch_up(struct spk_synth *synth);
43static void synth_flush(struct spk_synth *synth);
44
45static int synth_lpc;
46static int port_forced;
47static unsigned int synth_portlist[] = {
48 0x25e, 0x29e, 0x2de, 0x31e, 0x35e, 0x39e, 0
49};
50static u_char synth_status;
51
52static struct var_t vars[] = {
53 { CAPS_START, .u.s = {"\x01+35p" } },
54 { CAPS_STOP, .u.s = {"\x01-35p" } },
55 { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } },
56 { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } },
57 { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
58 { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
59 { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } },
60 { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
61 { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
62 { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
63 V_LAST_VAR
64};
65
66
67
68
69static struct kobj_attribute caps_start_attribute =
70 __ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
71static struct kobj_attribute caps_stop_attribute =
72 __ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
73static struct kobj_attribute freq_attribute =
74 __ATTR(freq, USER_RW, spk_var_show, spk_var_store);
75static struct kobj_attribute pitch_attribute =
76 __ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
77static struct kobj_attribute punct_attribute =
78 __ATTR(punct, USER_RW, spk_var_show, spk_var_store);
79static struct kobj_attribute rate_attribute =
80 __ATTR(rate, USER_RW, spk_var_show, spk_var_store);
81static struct kobj_attribute tone_attribute =
82 __ATTR(tone, USER_RW, spk_var_show, spk_var_store);
83static struct kobj_attribute voice_attribute =
84 __ATTR(voice, USER_RW, spk_var_show, spk_var_store);
85static struct kobj_attribute vol_attribute =
86 __ATTR(vol, USER_RW, spk_var_show, spk_var_store);
87
88static struct kobj_attribute delay_time_attribute =
89 __ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
90static struct kobj_attribute direct_attribute =
91 __ATTR(direct, USER_RW, spk_var_show, spk_var_store);
92static struct kobj_attribute full_time_attribute =
93 __ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
94static struct kobj_attribute jiffy_delta_attribute =
95 __ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
96static struct kobj_attribute trigger_time_attribute =
97 __ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
98
99
100
101
102
103static struct attribute *synth_attrs[] = {
104 &caps_start_attribute.attr,
105 &caps_stop_attribute.attr,
106 &freq_attribute.attr,
107 &pitch_attribute.attr,
108 &punct_attribute.attr,
109 &rate_attribute.attr,
110 &tone_attribute.attr,
111 &voice_attribute.attr,
112 &vol_attribute.attr,
113 &delay_time_attribute.attr,
114 &direct_attribute.attr,
115 &full_time_attribute.attr,
116 &jiffy_delta_attribute.attr,
117 &trigger_time_attribute.attr,
118 NULL,
119};
120
121static struct spk_synth synth_dtlk = {
122 .name = "dtlk",
123 .version = DRV_VERSION,
124 .long_name = "DoubleTalk PC",
125 .init = "\x01@\x01\x31y",
126 .procspeech = PROCSPEECH,
127 .clear = SYNTH_CLEAR,
128 .delay = 500,
129 .trigger = 30,
130 .jiffies = 50,
131 .full = 1000,
132 .startup = SYNTH_START,
133 .checkval = SYNTH_CHECK,
134 .vars = vars,
135 .probe = synth_probe,
136 .release = dtlk_release,
137 .synth_immediate = synth_immediate,
138 .catch_up = do_catch_up,
139 .flush = synth_flush,
140 .is_alive = spk_synth_is_alive_nop,
141 .synth_adjust = NULL,
142 .read_buff_add = NULL,
143 .get_index = spk_serial_in_nowait,
144 .indexing = {
145 .command = "\x01%di",
146 .lowindex = 1,
147 .highindex = 5,
148 .currindex = 1,
149 },
150 .attributes = {
151 .attrs = synth_attrs,
152 .name = "dtlk",
153 },
154};
155
156static inline bool synth_readable(void)
157{
158 synth_status = inb_p(speakup_info.port_tts + UART_RX);
159 return (synth_status & TTS_READABLE) != 0;
160}
161
162static inline bool synth_writable(void)
163{
164 synth_status = inb_p(speakup_info.port_tts + UART_RX);
165 return (synth_status & TTS_WRITABLE) != 0;
166}
167
168static inline bool synth_full(void)
169{
170 synth_status = inb_p(speakup_info.port_tts + UART_RX);
171 return (synth_status & TTS_ALMOST_FULL) != 0;
172}
173
174static void spk_out(const char ch)
175{
176 int timeout = SPK_XMITR_TIMEOUT;
177 while (!synth_writable()) {
178 if (!--timeout)
179 break;
180 udelay(1);
181 }
182 outb_p(ch, speakup_info.port_tts);
183 timeout = SPK_XMITR_TIMEOUT;
184 while (synth_writable()) {
185 if (!--timeout)
186 break;
187 udelay(1);
188 }
189}
190
191static void do_catch_up(struct spk_synth *synth)
192{
193 u_char ch;
194 unsigned long flags;
195 unsigned long jiff_max;
196 struct var_t *jiffy_delta;
197 struct var_t *delay_time;
198 int jiffy_delta_val;
199 int delay_time_val;
200
201 jiffy_delta = get_var(JIFFY);
202 delay_time = get_var(DELAY);
203 spk_lock(flags);
204 jiffy_delta_val = jiffy_delta->u.n.value;
205 spk_unlock(flags);
206 jiff_max = jiffies + jiffy_delta_val;
207 while (!kthread_should_stop()) {
208 spk_lock(flags);
209 if (speakup_info.flushing) {
210 speakup_info.flushing = 0;
211 spk_unlock(flags);
212 synth->flush(synth);
213 continue;
214 }
215 if (synth_buffer_empty()) {
216 spk_unlock(flags);
217 break;
218 }
219 set_current_state(TASK_INTERRUPTIBLE);
220 delay_time_val = delay_time->u.n.value;
221 spk_unlock(flags);
222 if (synth_full()) {
223 schedule_timeout(msecs_to_jiffies(delay_time_val));
224 continue;
225 }
226 set_current_state(TASK_RUNNING);
227 spk_lock(flags);
228 ch = synth_buffer_getc();
229 spk_unlock(flags);
230 if (ch == '\n')
231 ch = PROCSPEECH;
232 spk_out(ch);
233 if ((jiffies >= jiff_max) && (ch == SPACE)) {
234 spk_out(PROCSPEECH);
235 spk_lock(flags);
236 delay_time_val = delay_time->u.n.value;
237 jiffy_delta_val = jiffy_delta->u.n.value;
238 spk_unlock(flags);
239 schedule_timeout(msecs_to_jiffies(delay_time_val));
240 jiff_max = jiffies + jiffy_delta_val;
241 }
242 }
243 spk_out(PROCSPEECH);
244}
245
246static const char *synth_immediate(struct spk_synth *synth, const char *buf)
247{
248 u_char ch;
249 while ((ch = (u_char)*buf)) {
250 if (synth_full())
251 return buf;
252 if (ch == '\n')
253 ch = PROCSPEECH;
254 spk_out(ch);
255 buf++;
256 }
257 return 0;
258}
259
260static void synth_flush(struct spk_synth *synth)
261{
262 outb_p(SYNTH_CLEAR, speakup_info.port_tts);
263 while (synth_writable())
264 cpu_relax();
265}
266
267static char synth_read_tts(void)
268{
269 u_char ch;
270 while (!synth_readable())
271 cpu_relax();
272 ch = synth_status & 0x7f;
273 outb_p(ch, speakup_info.port_tts);
274 while (synth_readable())
275 cpu_relax();
276 return (char) ch;
277}
278
279
280static struct synth_settings *synth_interrogate(struct spk_synth *synth)
281{
282 u_char *t;
283 static char buf[sizeof(struct synth_settings) + 1];
284 int total, i;
285 static struct synth_settings status;
286 synth_immediate(synth, "\x18\x01?");
287 for (total = 0, i = 0; i < 50; i++) {
288 buf[total] = synth_read_tts();
289 if (total > 2 && buf[total] == 0x7f)
290 break;
291 if (total < sizeof(struct synth_settings))
292 total++;
293 }
294 t = buf;
295
296 status.serial_number = t[0] + t[1]*256;
297 t += 2;
298 for (i = 0; *t != '\r'; t++) {
299 status.rom_version[i] = *t;
300 if (i < sizeof(status.rom_version)-1)
301 i++;
302 }
303 status.rom_version[i] = 0;
304 t++;
305 status.mode = *t++;
306 status.punc_level = *t++;
307 status.formant_freq = *t++;
308 status.pitch = *t++;
309 status.speed = *t++;
310 status.volume = *t++;
311 status.tone = *t++;
312 status.expression = *t++;
313 status.ext_dict_loaded = *t++;
314 status.ext_dict_status = *t++;
315 status.free_ram = *t++;
316 status.articulation = *t++;
317 status.reverb = *t++;
318 status.eob = *t++;
319 return &status;
320}
321
322static int synth_probe(struct spk_synth *synth)
323{
324 unsigned int port_val = 0;
325 int i = 0;
326 struct synth_settings *sp;
327 pr_info("Probing for DoubleTalk.\n");
328 if (port_forced) {
329 speakup_info.port_tts = port_forced;
330 pr_info("probe forced to %x by kernel command line\n",
331 speakup_info.port_tts);
332 if ((port_forced & 0xf) != 0xf)
333 pr_info("warning: port base should probably end with f\n");
334 if (synth_request_region(speakup_info.port_tts-1,
335 SYNTH_IO_EXTENT)) {
336 pr_warn("sorry, port already reserved\n");
337 return -EBUSY;
338 }
339 port_val = inw(speakup_info.port_tts-1);
340 synth_lpc = speakup_info.port_tts-1;
341 } else {
342 for (i = 0; synth_portlist[i]; i++) {
343 if (synth_request_region(synth_portlist[i],
344 SYNTH_IO_EXTENT))
345 continue;
346 port_val = inw(synth_portlist[i]) & 0xfbff;
347 if (port_val == 0x107f) {
348 synth_lpc = synth_portlist[i];
349 speakup_info.port_tts = synth_lpc+1;
350 break;
351 }
352 synth_release_region(synth_portlist[i],
353 SYNTH_IO_EXTENT);
354 }
355 }
356 port_val &= 0xfbff;
357 if (port_val != 0x107f) {
358 pr_info("DoubleTalk PC: not found\n");
359 synth_release_region(synth_lpc, SYNTH_IO_EXTENT);
360 return -ENODEV;
361 }
362 while (inw_p(synth_lpc) != 0x147f)
363 cpu_relax();
364 sp = synth_interrogate(synth);
365 pr_info("%s: %03x-%03x, ROM ver %s, s/n %u, driver: %s\n",
366 synth->long_name, synth_lpc, synth_lpc+SYNTH_IO_EXTENT - 1,
367 sp->rom_version, sp->serial_number, synth->version);
368 synth->alive = 1;
369 return 0;
370}
371
372static void dtlk_release(void)
373{
374 if (speakup_info.port_tts)
375 synth_release_region(speakup_info.port_tts-1, SYNTH_IO_EXTENT);
376 speakup_info.port_tts = 0;
377}
378
379module_param_named(port, port_forced, int, S_IRUGO);
380module_param_named(start, synth_dtlk.startup, short, S_IRUGO);
381
382MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
383MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
384
385static int __init dtlk_init(void)
386{
387 return synth_add(&synth_dtlk);
388}
389
390static void __exit dtlk_exit(void)
391{
392 synth_remove(&synth_dtlk);
393}
394
395module_init(dtlk_init);
396module_exit(dtlk_exit);
397MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
398MODULE_AUTHOR("David Borowski");
399MODULE_DESCRIPTION("Speakup support for DoubleTalk PC synthesizers");
400MODULE_LICENSE("GPL");
401MODULE_VERSION(DRV_VERSION);
402
403
