2 * QEMU Baum Braille Device
4 * Copyright (c) 2008, 2010-2011, 2016 Samuel Thibault
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu/osdep.h"
25 #include "qapi/error.h"
26 #include "qemu-common.h"
27 #include "sysemu/char.h"
28 #include "qemu/timer.h"
31 #include <brlapi_constants.h>
32 #include <brlapi_keycodes.h>
34 #include <SDL_syswm.h>
38 #define DPRINTF(fmt, ...) \
39 printf(fmt, ## __VA_ARGS__)
41 #define DPRINTF(fmt, ...)
46 #define BAUM_REQ_DisplayData 0x01
47 #define BAUM_REQ_GetVersionNumber 0x05
48 #define BAUM_REQ_GetKeys 0x08
49 #define BAUM_REQ_SetMode 0x12
50 #define BAUM_REQ_SetProtocol 0x15
51 #define BAUM_REQ_GetDeviceIdentity 0x84
52 #define BAUM_REQ_GetSerialNumber 0x8A
54 #define BAUM_RSP_CellCount 0x01
55 #define BAUM_RSP_VersionNumber 0x05
56 #define BAUM_RSP_ModeSetting 0x11
57 #define BAUM_RSP_CommunicationChannel 0x16
58 #define BAUM_RSP_PowerdownSignal 0x17
59 #define BAUM_RSP_HorizontalSensors 0x20
60 #define BAUM_RSP_VerticalSensors 0x21
61 #define BAUM_RSP_RoutingKeys 0x22
62 #define BAUM_RSP_Switches 0x23
63 #define BAUM_RSP_TopKeys 0x24
64 #define BAUM_RSP_HorizontalSensor 0x25
65 #define BAUM_RSP_VerticalSensor 0x26
66 #define BAUM_RSP_RoutingKey 0x27
67 #define BAUM_RSP_FrontKeys6 0x28
68 #define BAUM_RSP_BackKeys6 0x29
69 #define BAUM_RSP_CommandKeys 0x2B
70 #define BAUM_RSP_FrontKeys10 0x2C
71 #define BAUM_RSP_BackKeys10 0x2D
72 #define BAUM_RSP_EntryKeys 0x33
73 #define BAUM_RSP_JoyStick 0x34
74 #define BAUM_RSP_ErrorCode 0x40
75 #define BAUM_RSP_InfoBlock 0x42
76 #define BAUM_RSP_DeviceIdentity 0x84
77 #define BAUM_RSP_SerialNumber 0x8A
78 #define BAUM_RSP_BluetoothName 0x8C
92 brlapi_handle_t *brlapi;
97 uint8_t in_buf[BUF_SIZE];
99 uint8_t out_buf[BUF_SIZE];
100 uint8_t out_buf_used, out_buf_ptr;
102 QEMUTimer *cellCount_timer;
105 /* Let's assume NABCC by default */
110 static const uint8_t nabcc_translation[2][256] = {
112 #define BRLAPI_DOTS(d1,d2,d3,d4,d5,d6,d7,d8) \
113 ((d1?BRLAPI_DOT1:0)|\
122 #define DO(dots, ascii) \
123 [DOTS2ASCII][dots] = ascii, \
124 [ASCII2DOTS][ascii] = dots
126 DO(BRLAPI_DOTS(1, 0, 0, 0, 0, 0, 0, 0), 'a'),
127 DO(BRLAPI_DOTS(1, 1, 0, 0, 0, 0, 0, 0), 'b'),
128 DO(BRLAPI_DOTS(1, 0, 0, 1, 0, 0, 0, 0), 'c'),
129 DO(BRLAPI_DOTS(1, 0, 0, 1, 1, 0, 0, 0), 'd'),
130 DO(BRLAPI_DOTS(1, 0, 0, 0, 1, 0, 0, 0), 'e'),
131 DO(BRLAPI_DOTS(1, 1, 0, 1, 0, 0, 0, 0), 'f'),
132 DO(BRLAPI_DOTS(1, 1, 0, 1, 1, 0, 0, 0), 'g'),
133 DO(BRLAPI_DOTS(1, 1, 0, 0, 1, 0, 0, 0), 'h'),
134 DO(BRLAPI_DOTS(0, 1, 0, 1, 0, 0, 0, 0), 'i'),
135 DO(BRLAPI_DOTS(0, 1, 0, 1, 1, 0, 0, 0), 'j'),
136 DO(BRLAPI_DOTS(1, 0, 1, 0, 0, 0, 0, 0), 'k'),
137 DO(BRLAPI_DOTS(1, 1, 1, 0, 0, 0, 0, 0), 'l'),
138 DO(BRLAPI_DOTS(1, 0, 1, 1, 0, 0, 0, 0), 'm'),
139 DO(BRLAPI_DOTS(1, 0, 1, 1, 1, 0, 0, 0), 'n'),
140 DO(BRLAPI_DOTS(1, 0, 1, 0, 1, 0, 0, 0), 'o'),
141 DO(BRLAPI_DOTS(1, 1, 1, 1, 0, 0, 0, 0), 'p'),
142 DO(BRLAPI_DOTS(1, 1, 1, 1, 1, 0, 0, 0), 'q'),
143 DO(BRLAPI_DOTS(1, 1, 1, 0, 1, 0, 0, 0), 'r'),
144 DO(BRLAPI_DOTS(0, 1, 1, 1, 0, 0, 0, 0), 's'),
145 DO(BRLAPI_DOTS(0, 1, 1, 1, 1, 0, 0, 0), 't'),
146 DO(BRLAPI_DOTS(1, 0, 1, 0, 0, 1, 0, 0), 'u'),
147 DO(BRLAPI_DOTS(1, 1, 1, 0, 0, 1, 0, 0), 'v'),
148 DO(BRLAPI_DOTS(0, 1, 0, 1, 1, 1, 0, 0), 'w'),
149 DO(BRLAPI_DOTS(1, 0, 1, 1, 0, 1, 0, 0), 'x'),
150 DO(BRLAPI_DOTS(1, 0, 1, 1, 1, 1, 0, 0), 'y'),
151 DO(BRLAPI_DOTS(1, 0, 1, 0, 1, 1, 0, 0), 'z'),
153 DO(BRLAPI_DOTS(1, 0, 0, 0, 0, 0, 1, 0), 'A'),
154 DO(BRLAPI_DOTS(1, 1, 0, 0, 0, 0, 1, 0), 'B'),
155 DO(BRLAPI_DOTS(1, 0, 0, 1, 0, 0, 1, 0), 'C'),
156 DO(BRLAPI_DOTS(1, 0, 0, 1, 1, 0, 1, 0), 'D'),
157 DO(BRLAPI_DOTS(1, 0, 0, 0, 1, 0, 1, 0), 'E'),
158 DO(BRLAPI_DOTS(1, 1, 0, 1, 0, 0, 1, 0), 'F'),
159 DO(BRLAPI_DOTS(1, 1, 0, 1, 1, 0, 1, 0), 'G'),
160 DO(BRLAPI_DOTS(1, 1, 0, 0, 1, 0, 1, 0), 'H'),
161 DO(BRLAPI_DOTS(0, 1, 0, 1, 0, 0, 1, 0), 'I'),
162 DO(BRLAPI_DOTS(0, 1, 0, 1, 1, 0, 1, 0), 'J'),
163 DO(BRLAPI_DOTS(1, 0, 1, 0, 0, 0, 1, 0), 'K'),
164 DO(BRLAPI_DOTS(1, 1, 1, 0, 0, 0, 1, 0), 'L'),
165 DO(BRLAPI_DOTS(1, 0, 1, 1, 0, 0, 1, 0), 'M'),
166 DO(BRLAPI_DOTS(1, 0, 1, 1, 1, 0, 1, 0), 'N'),
167 DO(BRLAPI_DOTS(1, 0, 1, 0, 1, 0, 1, 0), 'O'),
168 DO(BRLAPI_DOTS(1, 1, 1, 1, 0, 0, 1, 0), 'P'),
169 DO(BRLAPI_DOTS(1, 1, 1, 1, 1, 0, 1, 0), 'Q'),
170 DO(BRLAPI_DOTS(1, 1, 1, 0, 1, 0, 1, 0), 'R'),
171 DO(BRLAPI_DOTS(0, 1, 1, 1, 0, 0, 1, 0), 'S'),
172 DO(BRLAPI_DOTS(0, 1, 1, 1, 1, 0, 1, 0), 'T'),
173 DO(BRLAPI_DOTS(1, 0, 1, 0, 0, 1, 1, 0), 'U'),
174 DO(BRLAPI_DOTS(1, 1, 1, 0, 0, 1, 1, 0), 'V'),
175 DO(BRLAPI_DOTS(0, 1, 0, 1, 1, 1, 1, 0), 'W'),
176 DO(BRLAPI_DOTS(1, 0, 1, 1, 0, 1, 1, 0), 'X'),
177 DO(BRLAPI_DOTS(1, 0, 1, 1, 1, 1, 1, 0), 'Y'),
178 DO(BRLAPI_DOTS(1, 0, 1, 0, 1, 1, 1, 0), 'Z'),
180 DO(BRLAPI_DOTS(0, 0, 1, 0, 1, 1, 0, 0), '0'),
181 DO(BRLAPI_DOTS(0, 1, 0, 0, 0, 0, 0, 0), '1'),
182 DO(BRLAPI_DOTS(0, 1, 1, 0, 0, 0, 0, 0), '2'),
183 DO(BRLAPI_DOTS(0, 1, 0, 0, 1, 0, 0, 0), '3'),
184 DO(BRLAPI_DOTS(0, 1, 0, 0, 1, 1, 0, 0), '4'),
185 DO(BRLAPI_DOTS(0, 1, 0, 0, 0, 1, 0, 0), '5'),
186 DO(BRLAPI_DOTS(0, 1, 1, 0, 1, 0, 0, 0), '6'),
187 DO(BRLAPI_DOTS(0, 1, 1, 0, 1, 1, 0, 0), '7'),
188 DO(BRLAPI_DOTS(0, 1, 1, 0, 0, 1, 0, 0), '8'),
189 DO(BRLAPI_DOTS(0, 0, 1, 0, 1, 0, 0, 0), '9'),
191 DO(BRLAPI_DOTS(0, 0, 0, 1, 0, 1, 0, 0), '.'),
192 DO(BRLAPI_DOTS(0, 0, 1, 1, 0, 1, 0, 0), '+'),
193 DO(BRLAPI_DOTS(0, 0, 1, 0, 0, 1, 0, 0), '-'),
194 DO(BRLAPI_DOTS(1, 0, 0, 0, 0, 1, 0, 0), '*'),
195 DO(BRLAPI_DOTS(0, 0, 1, 1, 0, 0, 0, 0), '/'),
196 DO(BRLAPI_DOTS(1, 1, 1, 0, 1, 1, 0, 0), '('),
197 DO(BRLAPI_DOTS(0, 1, 1, 1, 1, 1, 0, 0), ')'),
199 DO(BRLAPI_DOTS(1, 1, 1, 1, 0, 1, 0, 0), '&'),
200 DO(BRLAPI_DOTS(0, 0, 1, 1, 1, 1, 0, 0), '#'),
202 DO(BRLAPI_DOTS(0, 0, 0, 0, 0, 1, 0, 0), ','),
203 DO(BRLAPI_DOTS(0, 0, 0, 0, 1, 1, 0, 0), ';'),
204 DO(BRLAPI_DOTS(1, 0, 0, 0, 1, 1, 0, 0), ':'),
205 DO(BRLAPI_DOTS(0, 1, 1, 1, 0, 1, 0, 0), '!'),
206 DO(BRLAPI_DOTS(1, 0, 0, 1, 1, 1, 0, 0), '?'),
207 DO(BRLAPI_DOTS(0, 0, 0, 0, 1, 0, 0, 0), '"'),
208 DO(BRLAPI_DOTS(0, 0, 1, 0, 0, 0, 0, 0), '\''),
209 DO(BRLAPI_DOTS(0, 0, 0, 1, 0, 0, 0, 0), '`'),
210 DO(BRLAPI_DOTS(0, 0, 0, 1, 1, 0, 1, 0), '^'),
211 DO(BRLAPI_DOTS(0, 0, 0, 1, 1, 0, 0, 0), '~'),
212 DO(BRLAPI_DOTS(0, 1, 0, 1, 0, 1, 1, 0), '['),
213 DO(BRLAPI_DOTS(1, 1, 0, 1, 1, 1, 1, 0), ']'),
214 DO(BRLAPI_DOTS(0, 1, 0, 1, 0, 1, 0, 0), '{'),
215 DO(BRLAPI_DOTS(1, 1, 0, 1, 1, 1, 0, 0), '}'),
216 DO(BRLAPI_DOTS(1, 1, 1, 1, 1, 1, 0, 0), '='),
217 DO(BRLAPI_DOTS(1, 1, 0, 0, 0, 1, 0, 0), '<'),
218 DO(BRLAPI_DOTS(0, 0, 1, 1, 1, 0, 0, 0), '>'),
219 DO(BRLAPI_DOTS(1, 1, 0, 1, 0, 1, 0, 0), '$'),
220 DO(BRLAPI_DOTS(1, 0, 0, 1, 0, 1, 0, 0), '%'),
221 DO(BRLAPI_DOTS(0, 0, 0, 1, 0, 0, 1, 0), '@'),
222 DO(BRLAPI_DOTS(1, 1, 0, 0, 1, 1, 0, 0), '|'),
223 DO(BRLAPI_DOTS(1, 1, 0, 0, 1, 1, 1, 0), '\\'),
224 DO(BRLAPI_DOTS(0, 0, 0, 1, 1, 1, 0, 0), '_'),
227 /* The guest OS has started discussing with us, finish initializing BrlAPI */
228 static int baum_deferred_init(BaumDriverState *baum)
230 #if defined(CONFIG_SDL)
231 #if SDL_COMPILEDVERSION < SDL_VERSIONNUM(2, 0, 0)
237 if (baum->deferred_init) {
241 if (brlapi__getDisplaySize(baum->brlapi, &baum->x, &baum->y) == -1) {
242 brlapi_perror("baum: brlapi__getDisplaySize");
246 #if defined(CONFIG_SDL)
247 #if SDL_COMPILEDVERSION < SDL_VERSIONNUM(2, 0, 0)
248 memset(&info, 0, sizeof(info));
249 SDL_VERSION(&info.version);
250 if (SDL_GetWMInfo(&info)) {
251 tty = info.info.x11.wmwindow;
255 tty = BRLAPI_TTY_DEFAULT;
256 #if defined(CONFIG_SDL)
257 #if SDL_COMPILEDVERSION < SDL_VERSIONNUM(2, 0, 0)
262 if (brlapi__enterTtyMode(baum->brlapi, tty, NULL) == -1) {
263 brlapi_perror("baum: brlapi__enterTtyMode");
266 baum->deferred_init = 1;
270 /* The serial port can receive more of our data */
271 static void baum_accept_input(struct CharDriverState *chr)
273 BaumDriverState *baum = chr->opaque;
276 if (!baum->out_buf_used)
278 room = qemu_chr_be_can_write(chr);
281 if (room > baum->out_buf_used)
282 room = baum->out_buf_used;
284 first = BUF_SIZE - baum->out_buf_ptr;
286 qemu_chr_be_write(chr, baum->out_buf + baum->out_buf_ptr, first);
287 baum->out_buf_ptr = 0;
288 baum->out_buf_used -= first;
291 qemu_chr_be_write(chr, baum->out_buf + baum->out_buf_ptr, room);
292 baum->out_buf_ptr += room;
293 baum->out_buf_used -= room;
296 /* We want to send a packet */
297 static void baum_write_packet(BaumDriverState *baum, const uint8_t *buf, int len)
299 uint8_t io_buf[1 + 2 * len], *cur = io_buf;
303 if ((*cur++ = *buf++) == ESC)
305 room = qemu_chr_be_can_write(baum->chr);
309 qemu_chr_be_write(baum->chr, io_buf, len);
313 /* Can't fit all, send what can be, and store the rest. */
314 qemu_chr_be_write(baum->chr, io_buf, room);
317 if (len > BUF_SIZE - baum->out_buf_used) {
318 /* Can't even store it, drop the previous data... */
319 assert(len <= BUF_SIZE);
320 baum->out_buf_used = 0;
321 baum->out_buf_ptr = 0;
323 out = baum->out_buf_ptr;
324 baum->out_buf_used += len;
325 first = BUF_SIZE - baum->out_buf_ptr;
327 memcpy(baum->out_buf + out, cur, first);
332 memcpy(baum->out_buf + out, cur, len);
336 /* Called when the other end seems to have a wrong idea of our display size */
337 static void baum_cellCount_timer_cb(void *opaque)
339 BaumDriverState *baum = opaque;
340 uint8_t cell_count[] = { BAUM_RSP_CellCount, baum->x * baum->y };
341 DPRINTF("Timeout waiting for DisplayData, sending cell count\n");
342 baum_write_packet(baum, cell_count, sizeof(cell_count));
345 /* Try to interpret a whole incoming packet */
346 static int baum_eat_packet(BaumDriverState *baum, const uint8_t *buf, int len)
348 const uint8_t *cur = buf;
354 while (*cur != ESC) {
359 DPRINTF("Dropped %td bytes!\n", cur - buf);
365 if ((c = *cur++) == ESC) { \
368 if (*cur++ != ESC) { \
369 DPRINTF("Broken packet %#2x, tossing\n", req); \
370 if (timer_pending(baum->cellCount_timer)) { \
371 timer_del(baum->cellCount_timer); \
372 baum_cellCount_timer_cb(baum); \
374 return (cur - 2 - buf); \
381 case BAUM_REQ_DisplayData:
383 uint8_t cells[baum->x * baum->y], c;
384 uint8_t text[baum->x * baum->y];
385 uint8_t zero[baum->x * baum->y];
386 int cursor = BRLAPI_CURSOR_OFF;
389 /* Allow 100ms to complete the DisplayData packet */
390 timer_mod(baum->cellCount_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
391 NANOSECONDS_PER_SECOND / 10);
392 for (i = 0; i < baum->x * baum->y ; i++) {
395 if ((c & (BRLAPI_DOT7|BRLAPI_DOT8))
396 == (BRLAPI_DOT7|BRLAPI_DOT8)) {
398 c &= ~(BRLAPI_DOT7|BRLAPI_DOT8);
400 c = nabcc_translation[DOTS2ASCII][c];
406 timer_del(baum->cellCount_timer);
408 memset(zero, 0, sizeof(zero));
410 brlapi_writeArguments_t wa = {
411 .displayNumber = BRLAPI_DISPLAY_DEFAULT,
413 .regionSize = baum->x * baum->y,
414 .text = (char *)text,
415 .textSize = baum->x * baum->y,
419 .charset = (char *)"ISO-8859-1",
422 if (brlapi__write(baum->brlapi, &wa) == -1)
423 brlapi_perror("baum brlapi_write");
426 case BAUM_REQ_SetMode:
428 uint8_t mode, setting;
429 DPRINTF("SetMode\n");
435 case BAUM_REQ_SetProtocol:
438 DPRINTF("SetProtocol\n");
443 case BAUM_REQ_GetDeviceIdentity:
445 uint8_t identity[17] = { BAUM_RSP_DeviceIdentity,
446 'B','a','u','m',' ','V','a','r','i','o' };
447 DPRINTF("GetDeviceIdentity\n");
448 identity[11] = '0' + baum->x / 10;
449 identity[12] = '0' + baum->x % 10;
450 baum_write_packet(baum, identity, sizeof(identity));
453 case BAUM_REQ_GetVersionNumber:
455 uint8_t version[] = { BAUM_RSP_VersionNumber, 1 }; /* ? */
456 DPRINTF("GetVersionNumber\n");
457 baum_write_packet(baum, version, sizeof(version));
460 case BAUM_REQ_GetSerialNumber:
462 uint8_t serial[] = { BAUM_RSP_SerialNumber,
463 '0','0','0','0','0','0','0','0' };
464 DPRINTF("GetSerialNumber\n");
465 baum_write_packet(baum, serial, sizeof(serial));
468 case BAUM_REQ_GetKeys:
470 DPRINTF("Get%0#2x\n", req);
475 DPRINTF("unrecognized request %0#2x\n", req);
479 while (*cur++ != ESC);
486 /* The other end is writing some data. Store it and try to interpret */
487 static int baum_write(CharDriverState *chr, const uint8_t *buf, int len)
489 BaumDriverState *baum = chr->opaque;
490 int tocopy, cur, eaten, orig_len = len;
496 if (!baum_deferred_init(baum))
500 /* Complete our buffer as much as possible */
502 if (tocopy > BUF_SIZE - baum->in_buf_used)
503 tocopy = BUF_SIZE - baum->in_buf_used;
505 memcpy(baum->in_buf + baum->in_buf_used, buf, tocopy);
506 baum->in_buf_used += tocopy;
510 /* Interpret it as much as possible */
512 while (cur < baum->in_buf_used &&
513 (eaten = baum_eat_packet(baum, baum->in_buf + cur, baum->in_buf_used - cur)))
516 /* Shift the remainder */
518 memmove(baum->in_buf, baum->in_buf + cur, baum->in_buf_used - cur);
519 baum->in_buf_used -= cur;
522 /* And continue if any data left */
527 /* Send the key code to the other end */
528 static void baum_send_key(BaumDriverState *baum, uint8_t type, uint8_t value) {
529 uint8_t packet[] = { type, value };
530 DPRINTF("writing key %x %x\n", type, value);
531 baum_write_packet(baum, packet, sizeof(packet));
534 static void baum_send_key2(BaumDriverState *baum, uint8_t type, uint8_t value,
536 uint8_t packet[] = { type, value, value2 };
537 DPRINTF("writing key %x %x\n", type, value);
538 baum_write_packet(baum, packet, sizeof(packet));
541 /* We got some data on the BrlAPI socket */
542 static void baum_chr_read(void *opaque)
544 BaumDriverState *baum = opaque;
545 brlapi_keyCode_t code;
549 if (!baum_deferred_init(baum))
551 while ((ret = brlapi__readKey(baum->brlapi, 0, &code)) == 1) {
552 DPRINTF("got key %"BRLAPI_PRIxKEYCODE"\n", code);
554 switch (code & BRLAPI_KEY_TYPE_MASK) {
555 case BRLAPI_KEY_TYPE_CMD:
556 switch (code & BRLAPI_KEY_CMD_BLK_MASK) {
557 case BRLAPI_KEY_CMD_ROUTE:
558 baum_send_key(baum, BAUM_RSP_RoutingKey, (code & BRLAPI_KEY_CMD_ARG_MASK)+1);
559 baum_send_key(baum, BAUM_RSP_RoutingKey, 0);
562 switch (code & BRLAPI_KEY_CMD_ARG_MASK) {
563 case BRLAPI_KEY_CMD_FWINLT:
564 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2);
565 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
567 case BRLAPI_KEY_CMD_FWINRT:
568 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR2);
569 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
571 case BRLAPI_KEY_CMD_LNUP:
572 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR1);
573 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
575 case BRLAPI_KEY_CMD_LNDN:
576 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR3);
577 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
579 case BRLAPI_KEY_CMD_TOP:
580 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TR1);
581 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
583 case BRLAPI_KEY_CMD_BOT:
584 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL3|BAUM_TR3);
585 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
587 case BRLAPI_KEY_CMD_TOP_LEFT:
588 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1);
589 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
591 case BRLAPI_KEY_CMD_BOT_LEFT:
592 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR3);
593 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
595 case BRLAPI_KEY_CMD_HOME:
596 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1|BAUM_TR3);
597 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
599 case BRLAPI_KEY_CMD_PREFMENU:
600 baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TL3|BAUM_TR1);
601 baum_send_key(baum, BAUM_RSP_TopKeys, 0);
606 case BRLAPI_KEY_TYPE_SYM:
608 brlapi_keyCode_t keysym = code & BRLAPI_KEY_CODE_MASK;
609 if (keysym < 0x100) {
610 uint8_t dots = nabcc_translation[ASCII2DOTS][keysym];
612 baum_send_key2(baum, BAUM_RSP_EntryKeys, 0, dots);
613 baum_send_key2(baum, BAUM_RSP_EntryKeys, 0, 0);
620 if (ret == -1 && (brlapi_errno != BRLAPI_ERROR_LIBCERR || errno != EINTR)) {
621 brlapi_perror("baum: brlapi_readKey");
622 brlapi__closeConnection(baum->brlapi);
623 g_free(baum->brlapi);
628 static void baum_free(struct CharDriverState *chr)
630 BaumDriverState *baum = chr->opaque;
632 timer_free(baum->cellCount_timer);
634 brlapi__closeConnection(baum->brlapi);
635 g_free(baum->brlapi);
640 static CharDriverState *chr_baum_init(const char *id,
641 ChardevBackend *backend,
646 ChardevCommon *common = backend->u.braille.data;
647 BaumDriverState *baum;
648 CharDriverState *chr;
649 brlapi_handle_t *handle;
651 chr = qemu_chr_alloc(common, errp);
655 baum = g_malloc0(sizeof(BaumDriverState));
659 chr->chr_write = baum_write;
660 chr->chr_accept_input = baum_accept_input;
661 chr->chr_free = baum_free;
663 handle = g_malloc0(brlapi_getHandleSize());
664 baum->brlapi = handle;
666 baum->brlapi_fd = brlapi__openConnection(handle, NULL, NULL);
667 if (baum->brlapi_fd == -1) {
668 error_setg(errp, "brlapi__openConnection: %s",
669 brlapi_strerror(brlapi_error_location()));
672 baum->deferred_init = 0;
674 baum->cellCount_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, baum_cellCount_timer_cb, baum);
676 qemu_set_fd_handler(baum->brlapi_fd, baum_chr_read, NULL, baum);
687 static void register_types(void)
689 register_char_driver("braille", CHARDEV_BACKEND_KIND_BRAILLE, NULL,
693 type_init(register_types);