2 * written by: Kirk Reiser <kirk@braille.uwo.ca>
3 * this version considerably modified by David Borowski, david575@rogers.com
5 * Copyright (C) 1998-99 Kirk Reiser.
6 * Copyright (C) 2003 David Borowski.
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.
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 * 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.
22 #include <linux/jiffies.h>
23 #include <linux/sched.h>
24 #include <linux/timer.h>
25 #include <linux/kthread.h>
30 #include "speakup_acnt.h" /* local header file for Accent values */
32 #define DRV_VERSION "2.10"
33 #define PROCSPEECH '\r'
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
);
41 static int synth_port_control
;
42 static int port_forced
;
43 static unsigned int synth_portlist
[] = { 0x2a8, 0 };
45 static struct var_t vars
[] = {
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
} },
57 * These attributes will appear in /sys/accessibility/speakup/acntpc.
59 static struct kobj_attribute caps_start_attribute
=
60 __ATTR(caps_start
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
61 static struct kobj_attribute caps_stop_attribute
=
62 __ATTR(caps_stop
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
63 static struct kobj_attribute pitch_attribute
=
64 __ATTR(pitch
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
65 static struct kobj_attribute rate_attribute
=
66 __ATTR(rate
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
67 static struct kobj_attribute tone_attribute
=
68 __ATTR(tone
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
69 static struct kobj_attribute vol_attribute
=
70 __ATTR(vol
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
72 static struct kobj_attribute delay_time_attribute
=
73 __ATTR(delay_time
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
74 static struct kobj_attribute direct_attribute
=
75 __ATTR(direct
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
76 static struct kobj_attribute full_time_attribute
=
77 __ATTR(full_time
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
78 static struct kobj_attribute jiffy_delta_attribute
=
79 __ATTR(jiffy_delta
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
80 static struct kobj_attribute trigger_time_attribute
=
81 __ATTR(trigger_time
, S_IWUSR
|S_IRUGO
, spk_var_show
, spk_var_store
);
84 * Create a group of attributes so that we can create and destroy them all
87 static struct attribute
*synth_attrs
[] = {
88 &caps_start_attribute
.attr
,
89 &caps_stop_attribute
.attr
,
90 &pitch_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 */
102 static struct spk_synth synth_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
,
113 .startup
= SYNTH_START
,
114 .checkval
= SYNTH_CHECK
,
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
,
132 .attrs
= synth_attrs
,
137 static inline bool synth_writable(void)
139 return inb_p(synth_port_control
) & SYNTH_WRITABLE
;
142 static inline bool synth_full(void)
144 return inb_p(speakup_info
.port_tts
+ UART_RX
) == 'F';
147 static const char *synth_immediate(struct spk_synth
*synth
, const char *buf
)
151 while ((ch
= *buf
)) {
152 int timeout
= SPK_XMITR_TIMEOUT
;
158 while (synth_writable()) {
163 outb_p(ch
, speakup_info
.port_tts
);
169 static void do_catch_up(struct spk_synth
*synth
)
173 unsigned long jiff_max
;
178 struct var_t
*delay_time
;
179 struct var_t
*full_time
;
180 struct var_t
*jiffy_delta
;
182 jiffy_delta
= spk_get_var(JIFFY
);
183 delay_time
= spk_get_var(DELAY
);
184 full_time
= spk_get_var(FULL
);
186 spin_lock_irqsave(&speakup_info
.spinlock
, flags
);
187 jiffy_delta_val
= jiffy_delta
->u
.n
.value
;
188 spin_unlock_irqrestore(&speakup_info
.spinlock
, flags
);
190 jiff_max
= jiffies
+ jiffy_delta_val
;
191 while (!kthread_should_stop()) {
192 spin_lock_irqsave(&speakup_info
.spinlock
, flags
);
193 if (speakup_info
.flushing
) {
194 speakup_info
.flushing
= 0;
195 spin_unlock_irqrestore(&speakup_info
.spinlock
, flags
);
199 if (synth_buffer_empty()) {
200 spin_unlock_irqrestore(&speakup_info
.spinlock
, flags
);
203 set_current_state(TASK_INTERRUPTIBLE
);
204 full_time_val
= full_time
->u
.n
.value
;
205 spin_unlock_irqrestore(&speakup_info
.spinlock
, flags
);
207 schedule_timeout(msecs_to_jiffies(full_time_val
));
210 set_current_state(TASK_RUNNING
);
211 timeout
= SPK_XMITR_TIMEOUT
;
212 while (synth_writable()) {
217 spin_lock_irqsave(&speakup_info
.spinlock
, flags
);
218 ch
= synth_buffer_getc();
219 spin_unlock_irqrestore(&speakup_info
.spinlock
, flags
);
222 outb_p(ch
, speakup_info
.port_tts
);
223 if (time_after_eq(jiffies
, jiff_max
) && ch
== SPACE
) {
224 timeout
= SPK_XMITR_TIMEOUT
;
225 while (synth_writable()) {
230 outb_p(PROCSPEECH
, speakup_info
.port_tts
);
231 spin_lock_irqsave(&speakup_info
.spinlock
, flags
);
232 jiffy_delta_val
= jiffy_delta
->u
.n
.value
;
233 delay_time_val
= delay_time
->u
.n
.value
;
234 spin_unlock_irqrestore(&speakup_info
.spinlock
, flags
);
235 schedule_timeout(msecs_to_jiffies(delay_time_val
));
236 jiff_max
= jiffies
+jiffy_delta_val
;
239 timeout
= SPK_XMITR_TIMEOUT
;
240 while (synth_writable()) {
245 outb_p(PROCSPEECH
, speakup_info
.port_tts
);
248 static void synth_flush(struct spk_synth
*synth
)
250 outb_p(SYNTH_CLEAR
, speakup_info
.port_tts
);
253 static int synth_probe(struct spk_synth
*synth
)
255 unsigned int port_val
= 0;
258 pr_info("Probing for %s.\n", synth
->long_name
);
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,
265 pr_warn("sorry, port already reserved\n");
268 port_val
= inw(speakup_info
.port_tts
-1);
269 synth_port_control
= speakup_info
.port_tts
-1;
271 for (i
= 0; synth_portlist
[i
]; i
++) {
272 if (synth_request_region(synth_portlist
[i
],
275 ("request_region: failed with 0x%x, %d\n",
276 synth_portlist
[i
], SYNTH_IO_EXTENT
);
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;
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;
296 pr_info("%s: %03x-%03x, driver version %s,\n", synth
->long_name
,
297 synth_port_control
, synth_port_control
+SYNTH_IO_EXTENT
-1,
303 static void accent_release(void)
305 if (speakup_info
.port_tts
)
306 synth_release_region(speakup_info
.port_tts
-1, SYNTH_IO_EXTENT
);
307 speakup_info
.port_tts
= 0;
310 module_param_named(port
, port_forced
, int, S_IRUGO
);
311 module_param_named(start
, synth_acntpc
.startup
, short, S_IRUGO
);
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.");
316 module_spk_synth(synth_acntpc
);
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
);