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.
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
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.
27 #include <linux/jiffies.h>
28 #include <linux/sched.h>
29 #include <linux/timer.h>
30 #include <linux/kthread.h>
35 #include "speakup_acnt.h" /* local header file for Accent values */
37 #define DRV_VERSION "2.10"
38 #define synth_readable() (inb_p(synth_port_control) & SYNTH_READABLE)
39 #define synth_writable() (inb_p(synth_port_control) & SYNTH_WRITABLE)
40 #define synth_full() (inb_p(speakup_info.port_tts + UART_RX) == 'F')
41 #define PROCSPEECH '\r'
43 static int synth_probe(struct spk_synth *synth);
44 static void accent_release(void);
45 static const char *synth_immediate(struct spk_synth *synth, const char *buf);
46 static void do_catch_up(struct spk_synth *synth);
47 static void synth_flush(struct spk_synth *synth);
49 static int synth_port_control;
50 static int port_forced;
51 static unsigned int synth_portlist[] = { 0x2a8, 0 };
53 static struct var_t vars[] = {
54 { CAPS_START, .u.s = {"\033P8" }},
55 { CAPS_STOP, .u.s = {"\033P5" }},
56 { RATE, .u.n = {"\033R%c", 9, 0, 17, 0, 0, "0123456789abcdefgh" }},
57 { PITCH, .u.n = {"\033P%d", 5, 0, 9, 0, 0, NULL }},
58 { VOL, .u.n = {"\033A%d", 5, 0, 9, 0, 0, NULL }},
59 { TONE, .u.n = {"\033V%d", 5, 0, 9, 0, 0, NULL }},
60 { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL }},
65 * These attributes will appear in /sys/accessibility/speakup/acntpc.
67 static struct kobj_attribute caps_start_attribute =
68 __ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
69 static struct kobj_attribute caps_stop_attribute =
70 __ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
71 static struct kobj_attribute pitch_attribute =
72 __ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
73 static struct kobj_attribute rate_attribute =
74 __ATTR(rate, USER_RW, spk_var_show, spk_var_store);
75 static struct kobj_attribute tone_attribute =
76 __ATTR(tone, USER_RW, spk_var_show, spk_var_store);
77 static struct kobj_attribute vol_attribute =
78 __ATTR(vol, USER_RW, spk_var_show, spk_var_store);
80 static struct kobj_attribute delay_time_attribute =
81 __ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
82 static struct kobj_attribute direct_attribute =
83 __ATTR(direct, USER_RW, spk_var_show, spk_var_store);
84 static struct kobj_attribute full_time_attribute =
85 __ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
86 static struct kobj_attribute jiffy_delta_attribute =
87 __ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
88 static struct kobj_attribute trigger_time_attribute =
89 __ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
92 * Create a group of attributes so that we can create and destroy them all
95 static struct attribute *synth_attrs[] = {
96 &caps_start_attribute.attr,
97 &caps_stop_attribute.attr,
98 &pitch_attribute.attr,
100 &tone_attribute.attr,
102 &delay_time_attribute.attr,
103 &direct_attribute.attr,
104 &full_time_attribute.attr,
105 &jiffy_delta_attribute.attr,
106 &trigger_time_attribute.attr,
107 NULL, /* need to NULL terminate the list of attributes */
110 static struct spk_synth synth_acntpc = {
112 .version = DRV_VERSION,
113 .long_name = "Accent PC",
114 .init = "\033=X \033Oi\033T2\033=M\033N1\n",
115 .procspeech = PROCSPEECH,
116 .clear = SYNTH_CLEAR,
121 .startup = SYNTH_START,
122 .checkval = SYNTH_CHECK,
124 .probe = synth_probe,
125 .release = accent_release,
126 .synth_immediate = synth_immediate,
127 .catch_up = do_catch_up,
128 .flush = synth_flush,
129 .is_alive = spk_synth_is_alive_nop,
130 .synth_adjust = NULL,
131 .read_buff_add = NULL,
140 .attrs = synth_attrs,
145 static const char *synth_immediate(struct spk_synth *synth, const char *buf)
148 while ((ch = *buf)) {
149 int timeout = SPK_XMITR_TIMEOUT;
154 while (synth_writable()) {
159 outb_p(ch, speakup_info.port_tts);
165 static void do_catch_up(struct spk_synth *synth)
169 unsigned long jiff_max;
174 struct var_t *delay_time;
175 struct var_t *full_time;
176 struct var_t *jiffy_delta;
178 jiffy_delta = get_var(JIFFY);
179 delay_time = get_var(DELAY);
180 full_time = get_var(FULL);
183 jiffy_delta_val = jiffy_delta->u.n.value;
186 jiff_max = jiffies + jiffy_delta_val;
187 while (!kthread_should_stop()) {
189 if (speakup_info.flushing) {
190 speakup_info.flushing = 0;
195 if (synth_buffer_empty()) {
199 set_current_state(TASK_INTERRUPTIBLE);
200 full_time_val = full_time->u.n.value;
203 schedule_timeout(msecs_to_jiffies(full_time_val));
206 set_current_state(TASK_RUNNING);
207 timeout = SPK_XMITR_TIMEOUT;
208 while (synth_writable()) {
214 ch = synth_buffer_getc();
218 outb_p(ch, speakup_info.port_tts);
219 if (jiffies >= jiff_max && ch == SPACE) {
220 timeout = SPK_XMITR_TIMEOUT;
221 while (synth_writable()) {
226 outb_p(PROCSPEECH, speakup_info.port_tts);
228 jiffy_delta_val = jiffy_delta->u.n.value;
229 delay_time_val = delay_time->u.n.value;
231 schedule_timeout(msecs_to_jiffies(delay_time_val));
232 jiff_max = jiffies+jiffy_delta_val;
235 timeout = SPK_XMITR_TIMEOUT;
236 while (synth_writable()) {
241 outb_p(PROCSPEECH, speakup_info.port_tts);
244 static void synth_flush(struct spk_synth *synth)
246 outb_p(SYNTH_CLEAR, speakup_info.port_tts);
249 static int synth_probe(struct spk_synth *synth)
251 unsigned int port_val = 0;
253 pr_info("Probing for %s.\n", synth->long_name);
255 speakup_info.port_tts = port_forced;
256 pr_info("probe forced to %x by kernel command line\n",
257 speakup_info.port_tts);
258 if (synth_request_region(speakup_info.port_tts-1,
260 pr_warn("sorry, port already reserved\n");
263 port_val = inw(speakup_info.port_tts-1);
264 synth_port_control = speakup_info.port_tts-1;
266 for (i = 0; synth_portlist[i]; i++) {
267 if (synth_request_region(synth_portlist[i],
269 pr_warn("request_region: failed with 0x%x, %d\n",
270 synth_portlist[i], SYNTH_IO_EXTENT);
273 port_val = inw(synth_portlist[i]) & 0xfffc;
274 if (port_val == 0x53fc) {
275 /* 'S' and out&input bits */
276 synth_port_control = synth_portlist[i];
277 speakup_info.port_tts = synth_port_control+1;
283 if (port_val != 0x53fc) {
284 /* 'S' and out&input bits */
285 pr_info("%s: not found\n", synth->long_name);
286 synth_release_region(synth_port_control, SYNTH_IO_EXTENT);
287 synth_port_control = 0;
290 pr_info("%s: %03x-%03x, driver version %s,\n", synth->long_name,
291 synth_port_control, synth_port_control+SYNTH_IO_EXTENT-1,
297 static void accent_release(void)
299 if (speakup_info.port_tts)
300 synth_release_region(speakup_info.port_tts-1, SYNTH_IO_EXTENT);
301 speakup_info.port_tts = 0;
304 module_param_named(port, port_forced, int, S_IRUGO);
305 module_param_named(start, synth_acntpc.startup, short, S_IRUGO);
307 MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
308 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
310 static int __init acntpc_init(void)
312 return synth_add(&synth_acntpc);
315 static void __exit acntpc_exit(void)
317 synth_remove(&synth_acntpc);
320 module_init(acntpc_init);
321 module_exit(acntpc_exit);
322 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
323 MODULE_AUTHOR("David Borowski");
324 MODULE_DESCRIPTION("Speakup support for Accent PC synthesizer");
325 MODULE_LICENSE("GPL");
326 MODULE_VERSION(DRV_VERSION);