1
2
3
4
5
6
7
8
9
10
11#include <linux/jiffies.h>
12#include <linux/sched.h>
13#include <linux/timer.h>
14#include <linux/kthread.h>
15#include <linux/serial_reg.h>
16
17#include "spk_priv.h"
18#include "speakup.h"
19
20#define DRV_VERSION "2.10"
21#define SYNTH_IO_EXTENT 0x04
22#define SWAIT udelay(70)
23#define PROCSPEECH 0x1f
24#define SYNTH_CLEAR 0x03
25
26static int synth_probe(struct spk_synth *synth);
27static void keynote_release(struct spk_synth *synth);
28static const char *synth_immediate(struct spk_synth *synth, const char *buf);
29static void do_catch_up(struct spk_synth *synth);
30static void synth_flush(struct spk_synth *synth);
31
32static int synth_port;
33static int port_forced;
34static unsigned int synth_portlist[] = { 0x2a8, 0 };
35
36static struct var_t vars[] = {
37 { CAPS_START, .u.s = {"[f130]" } },
38 { CAPS_STOP, .u.s = {"[f90]" } },
39 { RATE, .u.n = {"\04%c ", 8, 0, 10, 81, -8, NULL } },
40 { PITCH, .u.n = {"[f%d]", 5, 0, 9, 40, 10, NULL } },
41 { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
42 V_LAST_VAR
43};
44
45
46
47
48static struct kobj_attribute caps_start_attribute =
49 __ATTR(caps_start, 0644, spk_var_show, spk_var_store);
50static struct kobj_attribute caps_stop_attribute =
51 __ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
52static struct kobj_attribute pitch_attribute =
53 __ATTR(pitch, 0644, spk_var_show, spk_var_store);
54static struct kobj_attribute rate_attribute =
55 __ATTR(rate, 0644, spk_var_show, spk_var_store);
56
57static struct kobj_attribute delay_time_attribute =
58 __ATTR(delay_time, 0644, spk_var_show, spk_var_store);
59static struct kobj_attribute direct_attribute =
60 __ATTR(direct, 0644, spk_var_show, spk_var_store);
61static struct kobj_attribute full_time_attribute =
62 __ATTR(full_time, 0644, spk_var_show, spk_var_store);
63static struct kobj_attribute jiffy_delta_attribute =
64 __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
65static struct kobj_attribute trigger_time_attribute =
66 __ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
67
68
69
70
71
72static struct attribute *synth_attrs[] = {
73 &caps_start_attribute.attr,
74 &caps_stop_attribute.attr,
75 &pitch_attribute.attr,
76 &rate_attribute.attr,
77 &delay_time_attribute.attr,
78 &direct_attribute.attr,
79 &full_time_attribute.attr,
80 &jiffy_delta_attribute.attr,
81 &trigger_time_attribute.attr,
82 NULL,
83};
84
85static struct spk_synth synth_keypc = {
86 .name = "keypc",
87 .version = DRV_VERSION,
88 .long_name = "Keynote PC",
89 .init = "[t][n7,1][n8,0]",
90 .procspeech = PROCSPEECH,
91 .clear = SYNTH_CLEAR,
92 .delay = 500,
93 .trigger = 50,
94 .jiffies = 50,
95 .full = 1000,
96 .startup = SYNTH_START,
97 .checkval = SYNTH_CHECK,
98 .vars = vars,
99 .io_ops = &spk_serial_io_ops,
100 .probe = synth_probe,
101 .release = keynote_release,
102 .synth_immediate = synth_immediate,
103 .catch_up = do_catch_up,
104 .flush = synth_flush,
105 .is_alive = spk_synth_is_alive_nop,
106 .synth_adjust = NULL,
107 .read_buff_add = NULL,
108 .get_index = NULL,
109 .indexing = {
110 .command = NULL,
111 .lowindex = 0,
112 .highindex = 0,
113 .currindex = 0,
114 },
115 .attributes = {
116 .attrs = synth_attrs,
117 .name = "keypc",
118 },
119};
120
121static inline bool synth_writable(void)
122{
123 return (inb_p(synth_port + UART_RX) & 0x10) != 0;
124}
125
126static inline bool synth_full(void)
127{
128 return (inb_p(synth_port + UART_RX) & 0x80) == 0;
129}
130
131static char *oops(void)
132{
133 int s1, s2, s3, s4;
134
135 s1 = inb_p(synth_port);
136 s2 = inb_p(synth_port + 1);
137 s3 = inb_p(synth_port + 2);
138 s4 = inb_p(synth_port + 3);
139 pr_warn("synth timeout %d %d %d %d\n", s1, s2, s3, s4);
140 return NULL;
141}
142
143static const char *synth_immediate(struct spk_synth *synth, const char *buf)
144{
145 u_char ch;
146 int timeout;
147
148 while ((ch = *buf)) {
149 if (ch == '\n')
150 ch = PROCSPEECH;
151 if (synth_full())
152 return buf;
153 timeout = 1000;
154 while (synth_writable())
155 if (--timeout <= 0)
156 return oops();
157 outb_p(ch, synth_port);
158 udelay(70);
159 buf++;
160 }
161 return NULL;
162}
163
164static void do_catch_up(struct spk_synth *synth)
165{
166 u_char ch;
167 int timeout;
168 unsigned long flags;
169 unsigned long jiff_max;
170 struct var_t *jiffy_delta;
171 struct var_t *delay_time;
172 struct var_t *full_time;
173 int delay_time_val;
174 int full_time_val;
175 int jiffy_delta_val;
176
177 jiffy_delta = spk_get_var(JIFFY);
178 delay_time = spk_get_var(DELAY);
179 full_time = spk_get_var(FULL);
180 spin_lock_irqsave(&speakup_info.spinlock, flags);
181 jiffy_delta_val = jiffy_delta->u.n.value;
182 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
183
184 jiff_max = jiffies + jiffy_delta_val;
185 while (!kthread_should_stop()) {
186 spin_lock_irqsave(&speakup_info.spinlock, flags);
187 if (speakup_info.flushing) {
188 speakup_info.flushing = 0;
189 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
190 synth->flush(synth);
191 continue;
192 }
193 synth_buffer_skip_nonlatin1();
194 if (synth_buffer_empty()) {
195 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
196 break;
197 }
198 set_current_state(TASK_INTERRUPTIBLE);
199 full_time_val = full_time->u.n.value;
200 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
201 if (synth_full()) {
202 schedule_timeout(msecs_to_jiffies(full_time_val));
203 continue;
204 }
205 set_current_state(TASK_RUNNING);
206 timeout = 1000;
207 while (synth_writable())
208 if (--timeout <= 0)
209 break;
210 if (timeout <= 0) {
211 oops();
212 break;
213 }
214 spin_lock_irqsave(&speakup_info.spinlock, flags);
215 ch = synth_buffer_getc();
216 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
217 if (ch == '\n')
218 ch = PROCSPEECH;
219 outb_p(ch, synth_port);
220 SWAIT;
221 if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) {
222 timeout = 1000;
223 while (synth_writable())
224 if (--timeout <= 0)
225 break;
226 if (timeout <= 0) {
227 oops();
228 break;
229 }
230 outb_p(PROCSPEECH, synth_port);
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;
237 }
238 }
239 timeout = 1000;
240 while (synth_writable())
241 if (--timeout <= 0)
242 break;
243 if (timeout <= 0)
244 oops();
245 else
246 outb_p(PROCSPEECH, synth_port);
247}
248
249static void synth_flush(struct spk_synth *synth)
250{
251 outb_p(SYNTH_CLEAR, synth_port);
252}
253
254static int synth_probe(struct spk_synth *synth)
255{
256 unsigned int port_val = 0;
257 int i = 0;
258
259 pr_info("Probing for %s.\n", synth->long_name);
260 if (port_forced) {
261 synth_port = port_forced;
262 pr_info("probe forced to %x by kernel command line\n",
263 synth_port);
264 if (synth_request_region(synth_port - 1, SYNTH_IO_EXTENT)) {
265 pr_warn("sorry, port already reserved\n");
266 return -EBUSY;
267 }
268 port_val = inb(synth_port);
269 } else {
270 for (i = 0; synth_portlist[i]; i++) {
271 if (synth_request_region(synth_portlist[i],
272 SYNTH_IO_EXTENT)) {
273 pr_warn
274 ("request_region: failed with 0x%x, %d\n",
275 synth_portlist[i], SYNTH_IO_EXTENT);
276 continue;
277 }
278 port_val = inb(synth_portlist[i]);
279 if (port_val == 0x80) {
280 synth_port = synth_portlist[i];
281 break;
282 }
283 }
284 }
285 if (port_val != 0x80) {
286 pr_info("%s: not found\n", synth->long_name);
287 synth_release_region(synth_port, SYNTH_IO_EXTENT);
288 synth_port = 0;
289 return -ENODEV;
290 }
291 pr_info("%s: %03x-%03x, driver version %s,\n", synth->long_name,
292 synth_port, synth_port + SYNTH_IO_EXTENT - 1,
293 synth->version);
294 synth->alive = 1;
295 return 0;
296}
297
298static void keynote_release(struct spk_synth *synth)
299{
300 spk_stop_serial_interrupt();
301 if (synth_port)
302 synth_release_region(synth_port, SYNTH_IO_EXTENT);
303 synth_port = 0;
304}
305
306module_param_hw_named(port, port_forced, int, ioport, 0444);
307module_param_named(start, synth_keypc.startup, short, 0444);
308
309MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
310MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
311
312module_spk_synth(synth_keypc);
313
314MODULE_AUTHOR("David Borowski");
315MODULE_DESCRIPTION("Speakup support for Keynote Gold PC synthesizers");
316MODULE_LICENSE("GPL");
317MODULE_VERSION(DRV_VERSION);
318
319
