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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. | |
c6e3fd22 WH |
17 | * this code is specificly written as a driver for the speakup screenreview |
18 | * package and is not a general device driver. | |
19 | * This driver is for the Aicom Acent PC internal synthesizer. | |
20 | */ | |
21 | ||
22 | #include <linux/jiffies.h> | |
23 | #include <linux/sched.h> | |
24 | #include <linux/timer.h> | |
25 | #include <linux/kthread.h> | |
26 | ||
27 | #include "spk_priv.h" | |
28 | #include "serialio.h" | |
29 | #include "speakup.h" | |
30 | #include "speakup_acnt.h" /* local header file for Accent values */ | |
31 | ||
32 | #define DRV_VERSION "2.10" | |
c6e3fd22 WH |
33 | #define PROCSPEECH '\r' |
34 | ||
35 | static int synth_probe(struct spk_synth *synth); | |
36 | static void accent_release(void); | |
37 | static const char *synth_immediate(struct spk_synth *synth, const char *buf); | |
38 | static void do_catch_up(struct spk_synth *synth); | |
39 | static void synth_flush(struct spk_synth *synth); | |
40 | ||
41 | static int synth_port_control; | |
42 | static int port_forced; | |
43 | static unsigned int synth_portlist[] = { 0x2a8, 0 }; | |
44 | ||
45 | static struct var_t vars[] = { | |
bf4a4bac CB |
46 | { CAPS_START, .u.s = {"\033P8" } }, |
47 | { CAPS_STOP, .u.s = {"\033P5" } }, | |
48 | { RATE, .u.n = {"\033R%c", 9, 0, 17, 0, 0, "0123456789abcdefgh" } }, | |
49 | { PITCH, .u.n = {"\033P%d", 5, 0, 9, 0, 0, NULL } }, | |
50 | { VOL, .u.n = {"\033A%d", 5, 0, 9, 0, 0, NULL } }, | |
51 | { TONE, .u.n = {"\033V%d", 5, 0, 9, 0, 0, NULL } }, | |
52 | { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, | |
c6e3fd22 WH |
53 | V_LAST_VAR |
54 | }; | |
55 | ||
56 | /* | |
57 | * These attributes will appear in /sys/accessibility/speakup/acntpc. | |
58 | */ | |
59 | static struct kobj_attribute caps_start_attribute = | |
d901aaa7 | 60 | __ATTR(caps_start, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 61 | static struct kobj_attribute caps_stop_attribute = |
d901aaa7 | 62 | __ATTR(caps_stop, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 63 | static struct kobj_attribute pitch_attribute = |
d901aaa7 | 64 | __ATTR(pitch, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 65 | static struct kobj_attribute rate_attribute = |
d901aaa7 | 66 | __ATTR(rate, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 67 | static struct kobj_attribute tone_attribute = |
d901aaa7 | 68 | __ATTR(tone, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 69 | static struct kobj_attribute vol_attribute = |
d901aaa7 | 70 | __ATTR(vol, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 WH |
71 | |
72 | static struct kobj_attribute delay_time_attribute = | |
22c9bcad | 73 | __ATTR(delay_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 74 | static struct kobj_attribute direct_attribute = |
d901aaa7 | 75 | __ATTR(direct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 76 | static struct kobj_attribute full_time_attribute = |
22c9bcad | 77 | __ATTR(full_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 78 | static struct kobj_attribute jiffy_delta_attribute = |
22c9bcad | 79 | __ATTR(jiffy_delta, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 | 80 | static struct kobj_attribute trigger_time_attribute = |
22c9bcad | 81 | __ATTR(trigger_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store); |
c6e3fd22 WH |
82 | |
83 | /* | |
84 | * Create a group of attributes so that we can create and destroy them all | |
85 | * at once. | |
86 | */ | |
87 | static struct attribute *synth_attrs[] = { | |
88 | &caps_start_attribute.attr, | |
89 | &caps_stop_attribute.attr, | |
90 | &pitch_attribute.attr, | |
91 | &rate_attribute.attr, | |
92 | &tone_attribute.attr, | |
93 | &vol_attribute.attr, | |
94 | &delay_time_attribute.attr, | |
95 | &direct_attribute.attr, | |
96 | &full_time_attribute.attr, | |
97 | &jiffy_delta_attribute.attr, | |
98 | &trigger_time_attribute.attr, | |
99 | NULL, /* need to NULL terminate the list of attributes */ | |
100 | }; | |
101 | ||
102 | static struct spk_synth synth_acntpc = { | |
103 | .name = "acntpc", | |
104 | .version = DRV_VERSION, | |
105 | .long_name = "Accent PC", | |
106 | .init = "\033=X \033Oi\033T2\033=M\033N1\n", | |
107 | .procspeech = PROCSPEECH, | |
108 | .clear = SYNTH_CLEAR, | |
109 | .delay = 500, | |
110 | .trigger = 50, | |
111 | .jiffies = 50, | |
112 | .full = 1000, | |
113 | .startup = SYNTH_START, | |
114 | .checkval = SYNTH_CHECK, | |
115 | .vars = vars, | |
116 | .probe = synth_probe, | |
117 | .release = accent_release, | |
118 | .synth_immediate = synth_immediate, | |
119 | .catch_up = do_catch_up, | |
120 | .flush = synth_flush, | |
121 | .is_alive = spk_synth_is_alive_nop, | |
122 | .synth_adjust = NULL, | |
123 | .read_buff_add = NULL, | |
124 | .get_index = NULL, | |
125 | .indexing = { | |
126 | .command = NULL, | |
127 | .lowindex = 0, | |
128 | .highindex = 0, | |
129 | .currindex = 0, | |
130 | }, | |
131 | .attributes = { | |
132 | .attrs = synth_attrs, | |
133 | .name = "acntpc", | |
134 | }, | |
135 | }; | |
136 | ||
bf4a4bac CB |
137 | static inline bool synth_writable(void) |
138 | { | |
139 | return inb_p(synth_port_control) & SYNTH_WRITABLE; | |
140 | } | |
141 | ||
142 | static inline bool synth_full(void) | |
143 | { | |
144 | return inb_p(speakup_info.port_tts + UART_RX) == 'F'; | |
145 | } | |
146 | ||
c6e3fd22 WH |
147 | static const char *synth_immediate(struct spk_synth *synth, const char *buf) |
148 | { | |
149 | u_char ch; | |
8e69a811 | 150 | |
c6e3fd22 WH |
151 | while ((ch = *buf)) { |
152 | int timeout = SPK_XMITR_TIMEOUT; | |
8e69a811 | 153 | |
c6e3fd22 WH |
154 | if (ch == '\n') |
155 | ch = PROCSPEECH; | |
156 | if (synth_full()) | |
157 | return buf; | |
158 | while (synth_writable()) { | |
159 | if (!--timeout) | |
160 | return buf; | |
161 | udelay(1); | |
162 | } | |
163 | outb_p(ch, speakup_info.port_tts); | |
164 | buf++; | |
165 | } | |
dbbe6863 | 166 | return NULL; |
c6e3fd22 WH |
167 | } |
168 | ||
169 | static void do_catch_up(struct spk_synth *synth) | |
170 | { | |
171 | u_char ch; | |
172 | unsigned long flags; | |
173 | unsigned long jiff_max; | |
174 | int timeout; | |
175 | int delay_time_val; | |
176 | int jiffy_delta_val; | |
177 | int full_time_val; | |
178 | struct var_t *delay_time; | |
179 | struct var_t *full_time; | |
180 | struct var_t *jiffy_delta; | |
181 | ||
ca2beaf8 ST |
182 | jiffy_delta = spk_get_var(JIFFY); |
183 | delay_time = spk_get_var(DELAY); | |
184 | full_time = spk_get_var(FULL); | |
c6e3fd22 | 185 | |
995b9040 | 186 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 | 187 | jiffy_delta_val = jiffy_delta->u.n.value; |
995b9040 | 188 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
189 | |
190 | jiff_max = jiffies + jiffy_delta_val; | |
191 | while (!kthread_should_stop()) { | |
995b9040 | 192 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
193 | if (speakup_info.flushing) { |
194 | speakup_info.flushing = 0; | |
995b9040 | 195 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
196 | synth->flush(synth); |
197 | continue; | |
198 | } | |
199 | if (synth_buffer_empty()) { | |
995b9040 | 200 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
201 | break; |
202 | } | |
203 | set_current_state(TASK_INTERRUPTIBLE); | |
204 | full_time_val = full_time->u.n.value; | |
995b9040 | 205 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
206 | if (synth_full()) { |
207 | schedule_timeout(msecs_to_jiffies(full_time_val)); | |
208 | continue; | |
209 | } | |
210 | set_current_state(TASK_RUNNING); | |
211 | timeout = SPK_XMITR_TIMEOUT; | |
212 | while (synth_writable()) { | |
213 | if (!--timeout) | |
214 | break; | |
215 | udelay(1); | |
216 | } | |
995b9040 | 217 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 | 218 | ch = synth_buffer_getc(); |
995b9040 | 219 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
220 | if (ch == '\n') |
221 | ch = PROCSPEECH; | |
222 | outb_p(ch, speakup_info.port_tts); | |
75b76b47 | 223 | if (time_after_eq(jiffies, jiff_max) && ch == SPACE) { |
c6e3fd22 WH |
224 | timeout = SPK_XMITR_TIMEOUT; |
225 | while (synth_writable()) { | |
226 | if (!--timeout) | |
227 | break; | |
228 | udelay(1); | |
229 | } | |
230 | outb_p(PROCSPEECH, speakup_info.port_tts); | |
995b9040 | 231 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
232 | jiffy_delta_val = jiffy_delta->u.n.value; |
233 | delay_time_val = delay_time->u.n.value; | |
995b9040 | 234 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
235 | schedule_timeout(msecs_to_jiffies(delay_time_val)); |
236 | jiff_max = jiffies+jiffy_delta_val; | |
237 | } | |
238 | } | |
239 | timeout = SPK_XMITR_TIMEOUT; | |
240 | while (synth_writable()) { | |
241 | if (!--timeout) | |
242 | break; | |
243 | udelay(1); | |
244 | } | |
245 | outb_p(PROCSPEECH, speakup_info.port_tts); | |
246 | } | |
247 | ||
248 | static void synth_flush(struct spk_synth *synth) | |
249 | { | |
250 | outb_p(SYNTH_CLEAR, speakup_info.port_tts); | |
251 | } | |
252 | ||
253 | static int synth_probe(struct spk_synth *synth) | |
254 | { | |
255 | unsigned int port_val = 0; | |
256 | int i = 0; | |
8e69a811 | 257 | |
c6e3fd22 WH |
258 | pr_info("Probing for %s.\n", synth->long_name); |
259 | if (port_forced) { | |
260 | speakup_info.port_tts = port_forced; | |
261 | pr_info("probe forced to %x by kernel command line\n", | |
262 | speakup_info.port_tts); | |
263 | if (synth_request_region(speakup_info.port_tts-1, | |
264 | SYNTH_IO_EXTENT)) { | |
265 | pr_warn("sorry, port already reserved\n"); | |
266 | return -EBUSY; | |
267 | } | |
268 | port_val = inw(speakup_info.port_tts-1); | |
269 | synth_port_control = speakup_info.port_tts-1; | |
270 | } else { | |
271 | for (i = 0; synth_portlist[i]; i++) { | |
272 | if (synth_request_region(synth_portlist[i], | |
273 | SYNTH_IO_EXTENT)) { | |
bf4a4bac CB |
274 | pr_warn |
275 | ("request_region: failed with 0x%x, %d\n", | |
276 | synth_portlist[i], SYNTH_IO_EXTENT); | |
c6e3fd22 WH |
277 | continue; |
278 | } | |
279 | port_val = inw(synth_portlist[i]) & 0xfffc; | |
280 | if (port_val == 0x53fc) { | |
281 | /* 'S' and out&input bits */ | |
282 | synth_port_control = synth_portlist[i]; | |
283 | speakup_info.port_tts = synth_port_control+1; | |
284 | break; | |
285 | } | |
286 | } | |
287 | } | |
288 | port_val &= 0xfffc; | |
289 | if (port_val != 0x53fc) { | |
290 | /* 'S' and out&input bits */ | |
291 | pr_info("%s: not found\n", synth->long_name); | |
292 | synth_release_region(synth_port_control, SYNTH_IO_EXTENT); | |
293 | synth_port_control = 0; | |
294 | return -ENODEV; | |
295 | } | |
296 | pr_info("%s: %03x-%03x, driver version %s,\n", synth->long_name, | |
297 | synth_port_control, synth_port_control+SYNTH_IO_EXTENT-1, | |
298 | synth->version); | |
299 | synth->alive = 1; | |
300 | return 0; | |
301 | } | |
302 | ||
303 | static void accent_release(void) | |
304 | { | |
305 | if (speakup_info.port_tts) | |
306 | synth_release_region(speakup_info.port_tts-1, SYNTH_IO_EXTENT); | |
307 | speakup_info.port_tts = 0; | |
308 | } | |
309 | ||
310 | module_param_named(port, port_forced, int, S_IRUGO); | |
311 | module_param_named(start, synth_acntpc.startup, short, S_IRUGO); | |
312 | ||
313 | MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing)."); | |
314 | MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); | |
315 | ||
ae89facc | 316 | module_spk_synth(synth_acntpc); |
c6e3fd22 | 317 | |
c6e3fd22 WH |
318 | MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); |
319 | MODULE_AUTHOR("David Borowski"); | |
320 | MODULE_DESCRIPTION("Speakup support for Accent PC synthesizer"); | |
321 | MODULE_LICENSE("GPL"); | |
322 | MODULE_VERSION(DRV_VERSION); | |
323 |