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speakup_apollo.c
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1 /*
2  * originally written by: Kirk Reiser <[email protected]>
3 * this version considerably modified by David Borowski, [email protected]
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  */
25 #include <linux/jiffies.h>
26 #include <linux/sched.h>
27 #include <linux/timer.h>
28 #include <linux/kthread.h>
29 
30 #include "spk_priv.h"
31 #include "serialio.h"
32 #include "speakup.h"
33 
34 #define DRV_VERSION "2.21"
35 #define SYNTH_CLEAR 0x18
36 #define PROCSPEECH '\r'
37 
38 static void do_catch_up(struct spk_synth *synth);
39 
40 static struct var_t vars[] = {
41  { CAPS_START, .u.s = {"cap, " } },
42  { CAPS_STOP, .u.s = {"" } },
43  { RATE, .u.n = {"@W%d", 6, 1, 9, 0, 0, NULL } },
44  { PITCH, .u.n = {"@F%x", 10, 0, 15, 0, 0, NULL } },
45  { VOL, .u.n = {"@A%x", 10, 0, 15, 0, 0, NULL } },
46  { VOICE, .u.n = {"@V%d", 1, 1, 6, 0, 0, NULL } },
47  { LANG, .u.n = {"@=%d,", 1, 1, 4, 0, 0, NULL } },
48  { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
49  V_LAST_VAR
50 };
51 
52 /*
53  * These attributes will appear in /sys/accessibility/speakup/apollo.
54  */
55 static struct kobj_attribute caps_start_attribute =
56  __ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
57 static struct kobj_attribute caps_stop_attribute =
58  __ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
59 static struct kobj_attribute lang_attribute =
60  __ATTR(lang, USER_RW, spk_var_show, spk_var_store);
61 static struct kobj_attribute pitch_attribute =
62  __ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
63 static struct kobj_attribute rate_attribute =
64  __ATTR(rate, USER_RW, spk_var_show, spk_var_store);
65 static struct kobj_attribute voice_attribute =
66  __ATTR(voice, USER_RW, spk_var_show, spk_var_store);
67 static struct kobj_attribute vol_attribute =
68  __ATTR(vol, USER_RW, spk_var_show, spk_var_store);
69 
70 static struct kobj_attribute delay_time_attribute =
71  __ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
72 static struct kobj_attribute direct_attribute =
73  __ATTR(direct, USER_RW, spk_var_show, spk_var_store);
74 static struct kobj_attribute full_time_attribute =
75  __ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
76 static struct kobj_attribute jiffy_delta_attribute =
77  __ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
78 static struct kobj_attribute trigger_time_attribute =
79  __ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
80 
81 /*
82  * Create a group of attributes so that we can create and destroy them all
83  * at once.
84  */
85 static struct attribute *synth_attrs[] = {
86  &caps_start_attribute.attr,
87  &caps_stop_attribute.attr,
88  &lang_attribute.attr,
89  &pitch_attribute.attr,
90  &rate_attribute.attr,
91  &voice_attribute.attr,
92  &vol_attribute.attr,
93  &delay_time_attribute.attr,
94  &direct_attribute.attr,
95  &full_time_attribute.attr,
96  &jiffy_delta_attribute.attr,
97  &trigger_time_attribute.attr,
98  NULL, /* need to NULL terminate the list of attributes */
99 };
100 
101 static struct spk_synth synth_apollo = {
102  .name = "apollo",
103  .version = DRV_VERSION,
104  .long_name = "Apollo",
105  .init = "@R3@D0@K1\r",
106  .procspeech = PROCSPEECH,
107  .clear = SYNTH_CLEAR,
108  .delay = 500,
109  .trigger = 50,
110  .jiffies = 50,
111  .full = 40000,
112  .startup = SYNTH_START,
113  .checkval = SYNTH_CHECK,
114  .vars = vars,
115  .probe = serial_synth_probe,
116  .release = spk_serial_release,
117  .synth_immediate = spk_synth_immediate,
118  .catch_up = do_catch_up,
119  .flush = spk_synth_flush,
120  .is_alive = spk_synth_is_alive_restart,
121  .synth_adjust = NULL,
122  .read_buff_add = NULL,
123  .get_index = NULL,
124  .indexing = {
125  .command = NULL,
126  .lowindex = 0,
127  .highindex = 0,
128  .currindex = 0,
129  },
130  .attributes = {
131  .attrs = synth_attrs,
132  .name = "apollo",
133  },
134 };
135 
136 static void do_catch_up(struct spk_synth *synth)
137 {
138  u_char ch;
139  unsigned long flags;
140  unsigned long jiff_max;
141  struct var_t *jiffy_delta;
142  struct var_t *delay_time;
143  struct var_t *full_time;
144  int full_time_val = 0;
145  int delay_time_val = 0;
146  int jiffy_delta_val = 0;
147 
148  jiffy_delta = get_var(JIFFY);
149  delay_time = get_var(DELAY);
150  full_time = get_var(FULL);
151  spk_lock(flags);
152  jiffy_delta_val = jiffy_delta->u.n.value;
153  spk_unlock(flags);
154  jiff_max = jiffies + jiffy_delta_val;
155 
156  while (!kthread_should_stop()) {
157  spk_lock(flags);
158  jiffy_delta_val = jiffy_delta->u.n.value;
159  full_time_val = full_time->u.n.value;
160  delay_time_val = delay_time->u.n.value;
161  if (speakup_info.flushing) {
162  speakup_info.flushing = 0;
163  spk_unlock(flags);
164  synth->flush(synth);
165  continue;
166  }
167  if (synth_buffer_empty()) {
168  spk_unlock(flags);
169  break;
170  }
171  ch = synth_buffer_peek();
172  set_current_state(TASK_INTERRUPTIBLE);
173  full_time_val = full_time->u.n.value;
174  spk_unlock(flags);
175  if (!spk_serial_out(ch)) {
176  outb(UART_MCR_DTR, speakup_info.port_tts + UART_MCR);
177  outb(UART_MCR_DTR | UART_MCR_RTS,
178  speakup_info.port_tts + UART_MCR);
179  schedule_timeout(msecs_to_jiffies(full_time_val));
180  continue;
181  }
182  if ((jiffies >= jiff_max) && (ch == SPACE)) {
183  spk_lock(flags);
184  jiffy_delta_val = jiffy_delta->u.n.value;
185  full_time_val = full_time->u.n.value;
186  delay_time_val = delay_time->u.n.value;
187  spk_unlock(flags);
188  if (spk_serial_out(synth->procspeech))
189  schedule_timeout(msecs_to_jiffies
190  (delay_time_val));
191  else
192  schedule_timeout(msecs_to_jiffies
193  (full_time_val));
194  jiff_max = jiffies + jiffy_delta_val;
195  }
196  set_current_state(TASK_RUNNING);
197  spk_lock(flags);
198  synth_buffer_getc();
199  spk_unlock(flags);
200  }
201  spk_serial_out(PROCSPEECH);
202 }
203 
204 module_param_named(ser, synth_apollo.ser, int, S_IRUGO);
205 module_param_named(start, synth_apollo.startup, short, S_IRUGO);
206 
207 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
208 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
209 
210 static int __init apollo_init(void)
211 {
212  return synth_add(&synth_apollo);
213 }
214 
215 static void __exit apollo_exit(void)
216 {
217  synth_remove(&synth_apollo);
218 }
219 
220 module_init(apollo_init);
221 module_exit(apollo_exit);
222 MODULE_AUTHOR("Kirk Reiser <[email protected]>");
223 MODULE_AUTHOR("David Borowski");
224 MODULE_DESCRIPTION("Speakup support for Apollo II synthesizer");
225 MODULE_LICENSE("GPL");
226 MODULE_VERSION(DRV_VERSION);
227 
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