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20#include <linux/jiffies.h>
21#include <linux/sched.h>
22#include <linux/timer.h>
23#include <linux/kthread.h>
24#include <linux/serial_reg.h>
25
26#include "spk_priv.h"
27#include "speakup.h"
28
29#define DRV_VERSION "2.10"
30#define SYNTH_IO_EXTENT 0x04
31#define SWAIT udelay(70)
32#define PROCSPEECH 0x1f
33#define SYNTH_CLEAR 0x03
34
35static int synth_probe(struct spk_synth *synth);
36static void keynote_release(void);
37static const char *synth_immediate(struct spk_synth *synth, const char *buf);
38static void do_catch_up(struct spk_synth *synth);
39static void synth_flush(struct spk_synth *synth);
40
41static int synth_port;
42static int port_forced;
43static unsigned int synth_portlist[] = { 0x2a8, 0 };
44
45static struct var_t vars[] = {
46 { CAPS_START, .u.s = {"[f130]" } },
47 { CAPS_STOP, .u.s = {"[f90]" } },
48 { RATE, .u.n = {"\04%c ", 8, 0, 10, 81, -8, NULL } },
49 { PITCH, .u.n = {"[f%d]", 5, 0, 9, 40, 10, NULL } },
50 { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
51 V_LAST_VAR
52};
53
54
55
56
57static struct kobj_attribute caps_start_attribute =
58 __ATTR(caps_start, 0644, spk_var_show, spk_var_store);
59static struct kobj_attribute caps_stop_attribute =
60 __ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
61static struct kobj_attribute pitch_attribute =
62 __ATTR(pitch, 0644, spk_var_show, spk_var_store);
63static struct kobj_attribute rate_attribute =
64 __ATTR(rate, 0644, spk_var_show, spk_var_store);
65
66static struct kobj_attribute delay_time_attribute =
67 __ATTR(delay_time, 0644, spk_var_show, spk_var_store);
68static struct kobj_attribute direct_attribute =
69 __ATTR(direct, 0644, spk_var_show, spk_var_store);
70static struct kobj_attribute full_time_attribute =
71 __ATTR(full_time, 0644, spk_var_show, spk_var_store);
72static struct kobj_attribute jiffy_delta_attribute =
73 __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
74static struct kobj_attribute trigger_time_attribute =
75 __ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
76
77
78
79
80
81static struct attribute *synth_attrs[] = {
82 &caps_start_attribute.attr,
83 &caps_stop_attribute.attr,
84 &pitch_attribute.attr,
85 &rate_attribute.attr,
86 &delay_time_attribute.attr,
87 &direct_attribute.attr,
88 &full_time_attribute.attr,
89 &jiffy_delta_attribute.attr,
90 &trigger_time_attribute.attr,
91 NULL,
92};
93
94static struct spk_synth synth_keypc = {
95 .name = "keypc",
96 .version = DRV_VERSION,
97 .long_name = "Keynote PC",
98 .init = "[t][n7,1][n8,0]",
99 .procspeech = PROCSPEECH,
100 .clear = SYNTH_CLEAR,
101 .delay = 500,
102 .trigger = 50,
103 .jiffies = 50,
104 .full = 1000,
105 .startup = SYNTH_START,
106 .checkval = SYNTH_CHECK,
107 .vars = vars,
108 .io_ops = &spk_serial_io_ops,
109 .probe = synth_probe,
110 .release = keynote_release,
111 .synth_immediate = synth_immediate,
112 .catch_up = do_catch_up,
113 .flush = synth_flush,
114 .is_alive = spk_synth_is_alive_nop,
115 .synth_adjust = NULL,
116 .read_buff_add = NULL,
117 .get_index = NULL,
118 .indexing = {
119 .command = NULL,
120 .lowindex = 0,
121 .highindex = 0,
122 .currindex = 0,
123 },
124 .attributes = {
125 .attrs = synth_attrs,
126 .name = "keypc",
127 },
128};
129
130static inline bool synth_writable(void)
131{
132 return (inb_p(synth_port + UART_RX) & 0x10) != 0;
133}
134
135static inline bool synth_full(void)
136{
137 return (inb_p(synth_port + UART_RX) & 0x80) == 0;
138}
139
140static char *oops(void)
141{
142 int s1, s2, s3, s4;
143
144 s1 = inb_p(synth_port);
145 s2 = inb_p(synth_port + 1);
146 s3 = inb_p(synth_port + 2);
147 s4 = inb_p(synth_port + 3);
148 pr_warn("synth timeout %d %d %d %d\n", s1, s2, s3, s4);
149 return NULL;
150}
151
152static const char *synth_immediate(struct spk_synth *synth, const char *buf)
153{
154 u_char ch;
155 int timeout;
156
157 while ((ch = *buf)) {
158 if (ch == '\n')
159 ch = PROCSPEECH;
160 if (synth_full())
161 return buf;
162 timeout = 1000;
163 while (synth_writable())
164 if (--timeout <= 0)
165 return oops();
166 outb_p(ch, synth_port);
167 udelay(70);
168 buf++;
169 }
170 return NULL;
171}
172
173static void do_catch_up(struct spk_synth *synth)
174{
175 u_char ch;
176 int timeout;
177 unsigned long flags;
178 unsigned long jiff_max;
179 struct var_t *jiffy_delta;
180 struct var_t *delay_time;
181 struct var_t *full_time;
182 int delay_time_val;
183 int full_time_val;
184 int jiffy_delta_val;
185
186 jiffy_delta = spk_get_var(JIFFY);
187 delay_time = spk_get_var(DELAY);
188 full_time = spk_get_var(FULL);
189spin_lock_irqsave(&speakup_info.spinlock, flags);
190 jiffy_delta_val = jiffy_delta->u.n.value;
191 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
192
193 jiff_max = jiffies + jiffy_delta_val;
194 while (!kthread_should_stop()) {
195 spin_lock_irqsave(&speakup_info.spinlock, flags);
196 if (speakup_info.flushing) {
197 speakup_info.flushing = 0;
198 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
199 synth->flush(synth);
200 continue;
201 }
202 synth_buffer_skip_nonlatin1();
203 if (synth_buffer_empty()) {
204 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
205 break;
206 }
207 set_current_state(TASK_INTERRUPTIBLE);
208 full_time_val = full_time->u.n.value;
209 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
210 if (synth_full()) {
211 schedule_timeout(msecs_to_jiffies(full_time_val));
212 continue;
213 }
214 set_current_state(TASK_RUNNING);
215 timeout = 1000;
216 while (synth_writable())
217 if (--timeout <= 0)
218 break;
219 if (timeout <= 0) {
220 oops();
221 break;
222 }
223 spin_lock_irqsave(&speakup_info.spinlock, flags);
224 ch = synth_buffer_getc();
225 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
226 if (ch == '\n')
227 ch = PROCSPEECH;
228 outb_p(ch, synth_port);
229 SWAIT;
230 if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) {
231 timeout = 1000;
232 while (synth_writable())
233 if (--timeout <= 0)
234 break;
235 if (timeout <= 0) {
236 oops();
237 break;
238 }
239 outb_p(PROCSPEECH, synth_port);
240 spin_lock_irqsave(&speakup_info.spinlock, flags);
241 jiffy_delta_val = jiffy_delta->u.n.value;
242 delay_time_val = delay_time->u.n.value;
243 spin_unlock_irqrestore(&speakup_info.spinlock, flags);
244 schedule_timeout(msecs_to_jiffies(delay_time_val));
245 jiff_max = jiffies+jiffy_delta_val;
246 }
247 }
248 timeout = 1000;
249 while (synth_writable())
250 if (--timeout <= 0)
251 break;
252 if (timeout <= 0)
253 oops();
254 else
255 outb_p(PROCSPEECH, synth_port);
256}
257
258static void synth_flush(struct spk_synth *synth)
259{
260 outb_p(SYNTH_CLEAR, synth_port);
261}
262
263static int synth_probe(struct spk_synth *synth)
264{
265 unsigned int port_val = 0;
266 int i = 0;
267
268 pr_info("Probing for %s.\n", synth->long_name);
269 if (port_forced) {
270 synth_port = port_forced;
271 pr_info("probe forced to %x by kernel command line\n",
272 synth_port);
273 if (synth_request_region(synth_port-1, SYNTH_IO_EXTENT)) {
274 pr_warn("sorry, port already reserved\n");
275 return -EBUSY;
276 }
277 port_val = inb(synth_port);
278 } else {
279 for (i = 0; synth_portlist[i]; i++) {
280 if (synth_request_region(synth_portlist[i],
281 SYNTH_IO_EXTENT)) {
282 pr_warn
283 ("request_region: failed with 0x%x, %d\n",
284 synth_portlist[i], SYNTH_IO_EXTENT);
285 continue;
286 }
287 port_val = inb(synth_portlist[i]);
288 if (port_val == 0x80) {
289 synth_port = synth_portlist[i];
290 break;
291 }
292 }
293 }
294 if (port_val != 0x80) {
295 pr_info("%s: not found\n", synth->long_name);
296 synth_release_region(synth_port, SYNTH_IO_EXTENT);
297 synth_port = 0;
298 return -ENODEV;
299 }
300 pr_info("%s: %03x-%03x, driver version %s,\n", synth->long_name,
301 synth_port, synth_port+SYNTH_IO_EXTENT-1,
302 synth->version);
303 synth->alive = 1;
304 return 0;
305}
306
307static void keynote_release(void)
308{
309 spk_stop_serial_interrupt();
310 if (synth_port)
311 synth_release_region(synth_port, SYNTH_IO_EXTENT);
312 synth_port = 0;
313}
314
315module_param_hw_named(port, port_forced, int, ioport, 0444);
316module_param_named(start, synth_keypc.startup, short, 0444);
317
318MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
319MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
320
321module_spk_synth(synth_keypc);
322
323MODULE_AUTHOR("David Borowski");
324MODULE_DESCRIPTION("Speakup support for Keynote Gold PC synthesizers");
325MODULE_LICENSE("GPL");
326MODULE_VERSION(DRV_VERSION);
327
328
