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c6e3fd22 WH |
1 | /* |
2 | * 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 | * this code is specificly written as a driver for the speakup screenreview | |
23 | * package and is not a general device driver. | |
24 | * This driver is for the Aicom Acent PC internal synthesizer. | |
25 | */ | |
26 | ||
27 | #include <linux/jiffies.h> | |
28 | #include <linux/sched.h> | |
29 | #include <linux/timer.h> | |
30 | #include <linux/kthread.h> | |
31 | ||
32 | #include "spk_priv.h" | |
33 | #include "serialio.h" | |
34 | #include "speakup.h" | |
35 | #include "speakup_acnt.h" /* local header file for Accent values */ | |
36 | ||
37 | #define DRV_VERSION "2.10" | |
c6e3fd22 WH |
38 | #define PROCSPEECH '\r' |
39 | ||
40 | static int synth_probe(struct spk_synth *synth); | |
41 | static void accent_release(void); | |
42 | static const char *synth_immediate(struct spk_synth *synth, const char *buf); | |
43 | static void do_catch_up(struct spk_synth *synth); | |
44 | static void synth_flush(struct spk_synth *synth); | |
45 | ||
46 | static int synth_port_control; | |
47 | static int port_forced; | |
48 | static unsigned int synth_portlist[] = { 0x2a8, 0 }; | |
49 | ||
50 | static struct var_t vars[] = { | |
bf4a4bac CB |
51 | { CAPS_START, .u.s = {"\033P8" } }, |
52 | { CAPS_STOP, .u.s = {"\033P5" } }, | |
53 | { RATE, .u.n = {"\033R%c", 9, 0, 17, 0, 0, "0123456789abcdefgh" } }, | |
54 | { PITCH, .u.n = {"\033P%d", 5, 0, 9, 0, 0, NULL } }, | |
55 | { VOL, .u.n = {"\033A%d", 5, 0, 9, 0, 0, NULL } }, | |
56 | { TONE, .u.n = {"\033V%d", 5, 0, 9, 0, 0, NULL } }, | |
57 | { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, | |
c6e3fd22 WH |
58 | V_LAST_VAR |
59 | }; | |
60 | ||
61 | /* | |
62 | * These attributes will appear in /sys/accessibility/speakup/acntpc. | |
63 | */ | |
64 | static struct kobj_attribute caps_start_attribute = | |
d901aaa7 | 65 | __ATTR(caps_start, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 66 | static struct kobj_attribute caps_stop_attribute = |
d901aaa7 | 67 | __ATTR(caps_stop, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 68 | static struct kobj_attribute pitch_attribute = |
d901aaa7 | 69 | __ATTR(pitch, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 70 | static struct kobj_attribute rate_attribute = |
d901aaa7 | 71 | __ATTR(rate, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 72 | static struct kobj_attribute tone_attribute = |
d901aaa7 | 73 | __ATTR(tone, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 74 | static struct kobj_attribute vol_attribute = |
d901aaa7 | 75 | __ATTR(vol, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 WH |
76 | |
77 | static struct kobj_attribute delay_time_attribute = | |
22c9bcad | 78 | __ATTR(delay_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 79 | static struct kobj_attribute direct_attribute = |
d901aaa7 | 80 | __ATTR(direct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 81 | static struct kobj_attribute full_time_attribute = |
22c9bcad | 82 | __ATTR(full_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 83 | static struct kobj_attribute jiffy_delta_attribute = |
22c9bcad | 84 | __ATTR(jiffy_delta, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 85 | static struct kobj_attribute trigger_time_attribute = |
22c9bcad | 86 | __ATTR(trigger_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 WH |
87 | |
88 | /* | |
89 | * Create a group of attributes so that we can create and destroy them all | |
90 | * at once. | |
91 | */ | |
92 | static struct attribute *synth_attrs[] = { | |
93 | &caps_start_attribute.attr, | |
94 | &caps_stop_attribute.attr, | |
95 | &pitch_attribute.attr, | |
96 | &rate_attribute.attr, | |
97 | &tone_attribute.attr, | |
98 | &vol_attribute.attr, | |
99 | &delay_time_attribute.attr, | |
100 | &direct_attribute.attr, | |
101 | &full_time_attribute.attr, | |
102 | &jiffy_delta_attribute.attr, | |
103 | &trigger_time_attribute.attr, | |
104 | NULL, /* need to NULL terminate the list of attributes */ | |
105 | }; | |
106 | ||
107 | static struct spk_synth synth_acntpc = { | |
108 | .name = "acntpc", | |
109 | .version = DRV_VERSION, | |
110 | .long_name = "Accent PC", | |
111 | .init = "\033=X \033Oi\033T2\033=M\033N1\n", | |
112 | .procspeech = PROCSPEECH, | |
113 | .clear = SYNTH_CLEAR, | |
114 | .delay = 500, | |
115 | .trigger = 50, | |
116 | .jiffies = 50, | |
117 | .full = 1000, | |
118 | .startup = SYNTH_START, | |
119 | .checkval = SYNTH_CHECK, | |
120 | .vars = vars, | |
121 | .probe = synth_probe, | |
122 | .release = accent_release, | |
123 | .synth_immediate = synth_immediate, | |
124 | .catch_up = do_catch_up, | |
125 | .flush = synth_flush, | |
126 | .is_alive = spk_synth_is_alive_nop, | |
127 | .synth_adjust = NULL, | |
128 | .read_buff_add = NULL, | |
129 | .get_index = NULL, | |
130 | .indexing = { | |
131 | .command = NULL, | |
132 | .lowindex = 0, | |
133 | .highindex = 0, | |
134 | .currindex = 0, | |
135 | }, | |
136 | .attributes = { | |
137 | .attrs = synth_attrs, | |
138 | .name = "acntpc", | |
139 | }, | |
140 | }; | |
141 | ||
bf4a4bac CB |
142 | static inline bool synth_writable(void) |
143 | { | |
144 | return inb_p(synth_port_control) & SYNTH_WRITABLE; | |
145 | } | |
146 | ||
147 | static inline bool synth_full(void) | |
148 | { | |
149 | return inb_p(speakup_info.port_tts + UART_RX) == 'F'; | |
150 | } | |
151 | ||
c6e3fd22 WH |
152 | static const char *synth_immediate(struct spk_synth *synth, const char *buf) |
153 | { | |
154 | u_char ch; | |
8e69a811 | 155 | |
c6e3fd22 WH |
156 | while ((ch = *buf)) { |
157 | int timeout = SPK_XMITR_TIMEOUT; | |
8e69a811 | 158 | |
c6e3fd22 WH |
159 | if (ch == '\n') |
160 | ch = PROCSPEECH; | |
161 | if (synth_full()) | |
162 | return buf; | |
163 | while (synth_writable()) { | |
164 | if (!--timeout) | |
165 | return buf; | |
166 | udelay(1); | |
167 | } | |
168 | outb_p(ch, speakup_info.port_tts); | |
169 | buf++; | |
170 | } | |
dbbe6863 | 171 | return NULL; |
c6e3fd22 WH |
172 | } |
173 | ||
174 | static void do_catch_up(struct spk_synth *synth) | |
175 | { | |
176 | u_char ch; | |
177 | unsigned long flags; | |
178 | unsigned long jiff_max; | |
179 | int timeout; | |
180 | int delay_time_val; | |
181 | int jiffy_delta_val; | |
182 | int full_time_val; | |
183 | struct var_t *delay_time; | |
184 | struct var_t *full_time; | |
185 | struct var_t *jiffy_delta; | |
186 | ||
ca2beaf8 ST |
187 | jiffy_delta = spk_get_var(JIFFY); |
188 | delay_time = spk_get_var(DELAY); | |
189 | full_time = spk_get_var(FULL); | |
c6e3fd22 | 190 | |
995b9040 | 191 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 | 192 | jiffy_delta_val = jiffy_delta->u.n.value; |
995b9040 | 193 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
194 | |
195 | jiff_max = jiffies + jiffy_delta_val; | |
196 | while (!kthread_should_stop()) { | |
995b9040 | 197 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
198 | if (speakup_info.flushing) { |
199 | speakup_info.flushing = 0; | |
995b9040 | 200 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
201 | synth->flush(synth); |
202 | continue; | |
203 | } | |
204 | if (synth_buffer_empty()) { | |
995b9040 | 205 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
206 | break; |
207 | } | |
208 | set_current_state(TASK_INTERRUPTIBLE); | |
209 | full_time_val = full_time->u.n.value; | |
995b9040 | 210 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
211 | if (synth_full()) { |
212 | schedule_timeout(msecs_to_jiffies(full_time_val)); | |
213 | continue; | |
214 | } | |
215 | set_current_state(TASK_RUNNING); | |
216 | timeout = SPK_XMITR_TIMEOUT; | |
217 | while (synth_writable()) { | |
218 | if (!--timeout) | |
219 | break; | |
220 | udelay(1); | |
221 | } | |
995b9040 | 222 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 | 223 | ch = synth_buffer_getc(); |
995b9040 | 224 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
225 | if (ch == '\n') |
226 | ch = PROCSPEECH; | |
227 | outb_p(ch, speakup_info.port_tts); | |
75b76b47 | 228 | if (time_after_eq(jiffies, jiff_max) && ch == SPACE) { |
c6e3fd22 WH |
229 | timeout = SPK_XMITR_TIMEOUT; |
230 | while (synth_writable()) { | |
231 | if (!--timeout) | |
232 | break; | |
233 | udelay(1); | |
234 | } | |
235 | outb_p(PROCSPEECH, speakup_info.port_tts); | |
995b9040 | 236 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
237 | jiffy_delta_val = jiffy_delta->u.n.value; |
238 | delay_time_val = delay_time->u.n.value; | |
995b9040 | 239 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
240 | schedule_timeout(msecs_to_jiffies(delay_time_val)); |
241 | jiff_max = jiffies+jiffy_delta_val; | |
242 | } | |
243 | } | |
244 | timeout = SPK_XMITR_TIMEOUT; | |
245 | while (synth_writable()) { | |
246 | if (!--timeout) | |
247 | break; | |
248 | udelay(1); | |
249 | } | |
250 | outb_p(PROCSPEECH, speakup_info.port_tts); | |
251 | } | |
252 | ||
253 | static void synth_flush(struct spk_synth *synth) | |
254 | { | |
255 | outb_p(SYNTH_CLEAR, speakup_info.port_tts); | |
256 | } | |
257 | ||
258 | static int synth_probe(struct spk_synth *synth) | |
259 | { | |
260 | unsigned int port_val = 0; | |
261 | int i = 0; | |
8e69a811 | 262 | |
c6e3fd22 WH |
263 | pr_info("Probing for %s.\n", synth->long_name); |
264 | if (port_forced) { | |
265 | speakup_info.port_tts = port_forced; | |
266 | pr_info("probe forced to %x by kernel command line\n", | |
267 | speakup_info.port_tts); | |
268 | if (synth_request_region(speakup_info.port_tts-1, | |
269 | SYNTH_IO_EXTENT)) { | |
270 | pr_warn("sorry, port already reserved\n"); | |
271 | return -EBUSY; | |
272 | } | |
273 | port_val = inw(speakup_info.port_tts-1); | |
274 | synth_port_control = speakup_info.port_tts-1; | |
275 | } else { | |
276 | for (i = 0; synth_portlist[i]; i++) { | |
277 | if (synth_request_region(synth_portlist[i], | |
278 | SYNTH_IO_EXTENT)) { | |
bf4a4bac CB |
279 | pr_warn |
280 | ("request_region: failed with 0x%x, %d\n", | |
281 | synth_portlist[i], SYNTH_IO_EXTENT); | |
c6e3fd22 WH |
282 | continue; |
283 | } | |
284 | port_val = inw(synth_portlist[i]) & 0xfffc; | |
285 | if (port_val == 0x53fc) { | |
286 | /* 'S' and out&input bits */ | |
287 | synth_port_control = synth_portlist[i]; | |
288 | speakup_info.port_tts = synth_port_control+1; | |
289 | break; | |
290 | } | |
291 | } | |
292 | } | |
293 | port_val &= 0xfffc; | |
294 | if (port_val != 0x53fc) { | |
295 | /* 'S' and out&input bits */ | |
296 | pr_info("%s: not found\n", synth->long_name); | |
297 | synth_release_region(synth_port_control, SYNTH_IO_EXTENT); | |
298 | synth_port_control = 0; | |
299 | return -ENODEV; | |
300 | } | |
301 | pr_info("%s: %03x-%03x, driver version %s,\n", synth->long_name, | |
302 | synth_port_control, synth_port_control+SYNTH_IO_EXTENT-1, | |
303 | synth->version); | |
304 | synth->alive = 1; | |
305 | return 0; | |
306 | } | |
307 | ||
308 | static void accent_release(void) | |
309 | { | |
310 | if (speakup_info.port_tts) | |
311 | synth_release_region(speakup_info.port_tts-1, SYNTH_IO_EXTENT); | |
312 | speakup_info.port_tts = 0; | |
313 | } | |
314 | ||
315 | module_param_named(port, port_forced, int, S_IRUGO); | |
316 | module_param_named(start, synth_acntpc.startup, short, S_IRUGO); | |
317 | ||
318 | MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing)."); | |
319 | MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); | |
320 | ||
321 | static int __init acntpc_init(void) | |
322 | { | |
323 | return synth_add(&synth_acntpc); | |
324 | } | |
325 | ||
326 | static void __exit acntpc_exit(void) | |
327 | { | |
328 | synth_remove(&synth_acntpc); | |
329 | } | |
330 | ||
331 | module_init(acntpc_init); | |
332 | module_exit(acntpc_exit); | |
333 | MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); | |
334 | MODULE_AUTHOR("David Borowski"); | |
335 | MODULE_DESCRIPTION("Speakup support for Accent PC synthesizer"); | |
336 | MODULE_LICENSE("GPL"); | |
337 | MODULE_VERSION(DRV_VERSION); | |
338 |