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2e4d9fb1 AJ |
1 | /* |
2 | * QEMU Baum Braille Device | |
3 | * | |
4 | * Copyright (c) 2008 Samuel Thibault | |
5 | * | |
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: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
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 | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include "qemu-common.h" | |
25 | #include "qemu-char.h" | |
26 | #include "qemu-timer.h" | |
27 | #include "usb.h" | |
c78eae61 | 28 | #include "baum.h" |
2e4d9fb1 AJ |
29 | #include <brlapi.h> |
30 | #include <brlapi_constants.h> | |
31 | #include <brlapi_keycodes.h> | |
32 | #ifdef CONFIG_SDL | |
33 | #include <SDL/SDL_syswm.h> | |
34 | #endif | |
35 | ||
36 | #if 0 | |
37 | #define DPRINTF(fmt, ...) \ | |
38 | printf(fmt, ## __VA_ARGS__) | |
39 | #else | |
40 | #define DPRINTF(fmt, ...) | |
41 | #endif | |
42 | ||
43 | #define ESC 0x1B | |
44 | ||
45 | #define BAUM_REQ_DisplayData 0x01 | |
46 | #define BAUM_REQ_GetVersionNumber 0x05 | |
47 | #define BAUM_REQ_GetKeys 0x08 | |
48 | #define BAUM_REQ_SetMode 0x12 | |
49 | #define BAUM_REQ_SetProtocol 0x15 | |
50 | #define BAUM_REQ_GetDeviceIdentity 0x84 | |
51 | #define BAUM_REQ_GetSerialNumber 0x8A | |
52 | ||
53 | #define BAUM_RSP_CellCount 0x01 | |
54 | #define BAUM_RSP_VersionNumber 0x05 | |
55 | #define BAUM_RSP_ModeSetting 0x11 | |
56 | #define BAUM_RSP_CommunicationChannel 0x16 | |
57 | #define BAUM_RSP_PowerdownSignal 0x17 | |
58 | #define BAUM_RSP_HorizontalSensors 0x20 | |
59 | #define BAUM_RSP_VerticalSensors 0x21 | |
60 | #define BAUM_RSP_RoutingKeys 0x22 | |
61 | #define BAUM_RSP_Switches 0x23 | |
62 | #define BAUM_RSP_TopKeys 0x24 | |
63 | #define BAUM_RSP_HorizontalSensor 0x25 | |
64 | #define BAUM_RSP_VerticalSensor 0x26 | |
65 | #define BAUM_RSP_RoutingKey 0x27 | |
66 | #define BAUM_RSP_FrontKeys6 0x28 | |
67 | #define BAUM_RSP_BackKeys6 0x29 | |
68 | #define BAUM_RSP_CommandKeys 0x2B | |
69 | #define BAUM_RSP_FrontKeys10 0x2C | |
70 | #define BAUM_RSP_BackKeys10 0x2D | |
71 | #define BAUM_RSP_EntryKeys 0x33 | |
72 | #define BAUM_RSP_JoyStick 0x34 | |
73 | #define BAUM_RSP_ErrorCode 0x40 | |
74 | #define BAUM_RSP_InfoBlock 0x42 | |
75 | #define BAUM_RSP_DeviceIdentity 0x84 | |
76 | #define BAUM_RSP_SerialNumber 0x8A | |
77 | #define BAUM_RSP_BluetoothName 0x8C | |
78 | ||
79 | #define BAUM_TL1 0x01 | |
80 | #define BAUM_TL2 0x02 | |
81 | #define BAUM_TL3 0x04 | |
82 | #define BAUM_TR1 0x08 | |
83 | #define BAUM_TR2 0x10 | |
84 | #define BAUM_TR3 0x20 | |
85 | ||
86 | #define BUF_SIZE 256 | |
87 | ||
88 | typedef struct { | |
89 | CharDriverState *chr; | |
90 | ||
91 | brlapi_handle_t *brlapi; | |
92 | int brlapi_fd; | |
4f72c4dd | 93 | unsigned int x, y; |
2e4d9fb1 AJ |
94 | |
95 | uint8_t in_buf[BUF_SIZE]; | |
96 | uint8_t in_buf_used; | |
97 | uint8_t out_buf[BUF_SIZE]; | |
98 | uint8_t out_buf_used, out_buf_ptr; | |
99 | ||
100 | QEMUTimer *cellCount_timer; | |
101 | } BaumDriverState; | |
102 | ||
103 | /* Let's assume NABCC by default */ | |
104 | static const uint8_t nabcc_translation[256] = { | |
105 | [0] = ' ', | |
106 | #ifndef BRLAPI_DOTS | |
107 | #define BRLAPI_DOTS(d1,d2,d3,d4,d5,d6,d7,d8) \ | |
108 | ((d1?BRLAPI_DOT1:0)|\ | |
109 | (d2?BRLAPI_DOT2:0)|\ | |
110 | (d3?BRLAPI_DOT3:0)|\ | |
111 | (d4?BRLAPI_DOT4:0)|\ | |
112 | (d5?BRLAPI_DOT5:0)|\ | |
113 | (d6?BRLAPI_DOT6:0)|\ | |
114 | (d7?BRLAPI_DOT7:0)|\ | |
115 | (d8?BRLAPI_DOT8:0)) | |
116 | #endif | |
117 | [BRLAPI_DOTS(1,0,0,0,0,0,0,0)] = 'a', | |
118 | [BRLAPI_DOTS(1,1,0,0,0,0,0,0)] = 'b', | |
119 | [BRLAPI_DOTS(1,0,0,1,0,0,0,0)] = 'c', | |
120 | [BRLAPI_DOTS(1,0,0,1,1,0,0,0)] = 'd', | |
121 | [BRLAPI_DOTS(1,0,0,0,1,0,0,0)] = 'e', | |
122 | [BRLAPI_DOTS(1,1,0,1,0,0,0,0)] = 'f', | |
123 | [BRLAPI_DOTS(1,1,0,1,1,0,0,0)] = 'g', | |
124 | [BRLAPI_DOTS(1,1,0,0,1,0,0,0)] = 'h', | |
125 | [BRLAPI_DOTS(0,1,0,1,0,0,0,0)] = 'i', | |
126 | [BRLAPI_DOTS(0,1,0,1,1,0,0,0)] = 'j', | |
127 | [BRLAPI_DOTS(1,0,1,0,0,0,0,0)] = 'k', | |
128 | [BRLAPI_DOTS(1,1,1,0,0,0,0,0)] = 'l', | |
129 | [BRLAPI_DOTS(1,0,1,1,0,0,0,0)] = 'm', | |
130 | [BRLAPI_DOTS(1,0,1,1,1,0,0,0)] = 'n', | |
131 | [BRLAPI_DOTS(1,0,1,0,1,0,0,0)] = 'o', | |
132 | [BRLAPI_DOTS(1,1,1,1,0,0,0,0)] = 'p', | |
133 | [BRLAPI_DOTS(1,1,1,1,1,0,0,0)] = 'q', | |
134 | [BRLAPI_DOTS(1,1,1,0,1,0,0,0)] = 'r', | |
135 | [BRLAPI_DOTS(0,1,1,1,0,0,0,0)] = 's', | |
136 | [BRLAPI_DOTS(0,1,1,1,1,0,0,0)] = 't', | |
137 | [BRLAPI_DOTS(1,0,1,0,0,1,0,0)] = 'u', | |
138 | [BRLAPI_DOTS(1,1,1,0,0,1,0,0)] = 'v', | |
139 | [BRLAPI_DOTS(0,1,0,1,1,1,0,0)] = 'w', | |
140 | [BRLAPI_DOTS(1,0,1,1,0,1,0,0)] = 'x', | |
141 | [BRLAPI_DOTS(1,0,1,1,1,1,0,0)] = 'y', | |
142 | [BRLAPI_DOTS(1,0,1,0,1,1,0,0)] = 'z', | |
143 | ||
144 | [BRLAPI_DOTS(1,0,0,0,0,0,1,0)] = 'A', | |
145 | [BRLAPI_DOTS(1,1,0,0,0,0,1,0)] = 'B', | |
146 | [BRLAPI_DOTS(1,0,0,1,0,0,1,0)] = 'C', | |
147 | [BRLAPI_DOTS(1,0,0,1,1,0,1,0)] = 'D', | |
148 | [BRLAPI_DOTS(1,0,0,0,1,0,1,0)] = 'E', | |
149 | [BRLAPI_DOTS(1,1,0,1,0,0,1,0)] = 'F', | |
150 | [BRLAPI_DOTS(1,1,0,1,1,0,1,0)] = 'G', | |
151 | [BRLAPI_DOTS(1,1,0,0,1,0,1,0)] = 'H', | |
152 | [BRLAPI_DOTS(0,1,0,1,0,0,1,0)] = 'I', | |
153 | [BRLAPI_DOTS(0,1,0,1,1,0,1,0)] = 'J', | |
154 | [BRLAPI_DOTS(1,0,1,0,0,0,1,0)] = 'K', | |
155 | [BRLAPI_DOTS(1,1,1,0,0,0,1,0)] = 'L', | |
156 | [BRLAPI_DOTS(1,0,1,1,0,0,1,0)] = 'M', | |
157 | [BRLAPI_DOTS(1,0,1,1,1,0,1,0)] = 'N', | |
158 | [BRLAPI_DOTS(1,0,1,0,1,0,1,0)] = 'O', | |
159 | [BRLAPI_DOTS(1,1,1,1,0,0,1,0)] = 'P', | |
160 | [BRLAPI_DOTS(1,1,1,1,1,0,1,0)] = 'Q', | |
161 | [BRLAPI_DOTS(1,1,1,0,1,0,1,0)] = 'R', | |
162 | [BRLAPI_DOTS(0,1,1,1,0,0,1,0)] = 'S', | |
163 | [BRLAPI_DOTS(0,1,1,1,1,0,1,0)] = 'T', | |
164 | [BRLAPI_DOTS(1,0,1,0,0,1,1,0)] = 'U', | |
165 | [BRLAPI_DOTS(1,1,1,0,0,1,1,0)] = 'V', | |
166 | [BRLAPI_DOTS(0,1,0,1,1,1,1,0)] = 'W', | |
167 | [BRLAPI_DOTS(1,0,1,1,0,1,1,0)] = 'X', | |
168 | [BRLAPI_DOTS(1,0,1,1,1,1,1,0)] = 'Y', | |
169 | [BRLAPI_DOTS(1,0,1,0,1,1,1,0)] = 'Z', | |
170 | ||
171 | [BRLAPI_DOTS(0,0,1,0,1,1,0,0)] = '0', | |
172 | [BRLAPI_DOTS(0,1,0,0,0,0,0,0)] = '1', | |
173 | [BRLAPI_DOTS(0,1,1,0,0,0,0,0)] = '2', | |
174 | [BRLAPI_DOTS(0,1,0,0,1,0,0,0)] = '3', | |
175 | [BRLAPI_DOTS(0,1,0,0,1,1,0,0)] = '4', | |
176 | [BRLAPI_DOTS(0,1,0,0,0,1,0,0)] = '5', | |
177 | [BRLAPI_DOTS(0,1,1,0,1,0,0,0)] = '6', | |
178 | [BRLAPI_DOTS(0,1,1,0,1,1,0,0)] = '7', | |
179 | [BRLAPI_DOTS(0,1,1,0,0,1,0,0)] = '8', | |
180 | [BRLAPI_DOTS(0,0,1,0,1,0,0,0)] = '9', | |
181 | ||
182 | [BRLAPI_DOTS(0,0,0,1,0,1,0,0)] = '.', | |
183 | [BRLAPI_DOTS(0,0,1,1,0,1,0,0)] = '+', | |
184 | [BRLAPI_DOTS(0,0,1,0,0,1,0,0)] = '-', | |
185 | [BRLAPI_DOTS(1,0,0,0,0,1,0,0)] = '*', | |
186 | [BRLAPI_DOTS(0,0,1,1,0,0,0,0)] = '/', | |
187 | [BRLAPI_DOTS(1,1,1,0,1,1,0,0)] = '(', | |
188 | [BRLAPI_DOTS(0,1,1,1,1,1,0,0)] = ')', | |
189 | ||
190 | [BRLAPI_DOTS(1,1,1,1,0,1,0,0)] = '&', | |
191 | [BRLAPI_DOTS(0,0,1,1,1,1,0,0)] = '#', | |
192 | ||
193 | [BRLAPI_DOTS(0,0,0,0,0,1,0,0)] = ',', | |
194 | [BRLAPI_DOTS(0,0,0,0,1,1,0,0)] = ';', | |
195 | [BRLAPI_DOTS(1,0,0,0,1,1,0,0)] = ':', | |
196 | [BRLAPI_DOTS(0,1,1,1,0,1,0,0)] = '!', | |
197 | [BRLAPI_DOTS(1,0,0,1,1,1,0,0)] = '?', | |
198 | [BRLAPI_DOTS(0,0,0,0,1,0,0,0)] = '"', | |
199 | [BRLAPI_DOTS(0,0,1,0,0,0,0,0)] ='\'', | |
200 | [BRLAPI_DOTS(0,0,0,1,0,0,0,0)] = '`', | |
201 | [BRLAPI_DOTS(0,0,0,1,1,0,1,0)] = '^', | |
202 | [BRLAPI_DOTS(0,0,0,1,1,0,0,0)] = '~', | |
203 | [BRLAPI_DOTS(0,1,0,1,0,1,1,0)] = '[', | |
204 | [BRLAPI_DOTS(1,1,0,1,1,1,1,0)] = ']', | |
205 | [BRLAPI_DOTS(0,1,0,1,0,1,0,0)] = '{', | |
206 | [BRLAPI_DOTS(1,1,0,1,1,1,0,0)] = '}', | |
207 | [BRLAPI_DOTS(1,1,1,1,1,1,0,0)] = '=', | |
208 | [BRLAPI_DOTS(1,1,0,0,0,1,0,0)] = '<', | |
209 | [BRLAPI_DOTS(0,0,1,1,1,0,0,0)] = '>', | |
210 | [BRLAPI_DOTS(1,1,0,1,0,1,0,0)] = '$', | |
211 | [BRLAPI_DOTS(1,0,0,1,0,1,0,0)] = '%', | |
212 | [BRLAPI_DOTS(0,0,0,1,0,0,1,0)] = '@', | |
213 | [BRLAPI_DOTS(1,1,0,0,1,1,0,0)] = '|', | |
214 | [BRLAPI_DOTS(1,1,0,0,1,1,1,0)] ='\\', | |
215 | [BRLAPI_DOTS(0,0,0,1,1,1,0,0)] = '_', | |
216 | }; | |
217 | ||
218 | /* The serial port can receive more of our data */ | |
219 | static void baum_accept_input(struct CharDriverState *chr) | |
220 | { | |
221 | BaumDriverState *baum = chr->opaque; | |
222 | int room, first; | |
223 | ||
224 | if (!baum->out_buf_used) | |
225 | return; | |
226 | room = qemu_chr_can_read(chr); | |
227 | if (!room) | |
228 | return; | |
229 | if (room > baum->out_buf_used) | |
230 | room = baum->out_buf_used; | |
231 | ||
232 | first = BUF_SIZE - baum->out_buf_ptr; | |
233 | if (room > first) { | |
234 | qemu_chr_read(chr, baum->out_buf + baum->out_buf_ptr, first); | |
235 | baum->out_buf_ptr = 0; | |
236 | baum->out_buf_used -= first; | |
237 | room -= first; | |
238 | } | |
239 | qemu_chr_read(chr, baum->out_buf + baum->out_buf_ptr, room); | |
240 | baum->out_buf_ptr += room; | |
241 | baum->out_buf_used -= room; | |
242 | } | |
243 | ||
244 | /* We want to send a packet */ | |
245 | static void baum_write_packet(BaumDriverState *baum, const uint8_t *buf, int len) | |
246 | { | |
247 | uint8_t io_buf[1 + 2 * len], *cur = io_buf; | |
248 | int room; | |
249 | *cur++ = ESC; | |
250 | while (len--) | |
251 | if ((*cur++ = *buf++) == ESC) | |
252 | *cur++ = ESC; | |
253 | room = qemu_chr_can_read(baum->chr); | |
254 | len = cur - io_buf; | |
255 | if (len <= room) { | |
256 | /* Fits */ | |
257 | qemu_chr_read(baum->chr, io_buf, len); | |
258 | } else { | |
259 | int first; | |
260 | uint8_t out; | |
261 | /* Can't fit all, send what can be, and store the rest. */ | |
262 | qemu_chr_read(baum->chr, io_buf, room); | |
263 | len -= room; | |
264 | cur = io_buf + room; | |
265 | if (len > BUF_SIZE - baum->out_buf_used) { | |
266 | /* Can't even store it, drop the previous data... */ | |
267 | assert(len <= BUF_SIZE); | |
268 | baum->out_buf_used = 0; | |
269 | baum->out_buf_ptr = 0; | |
270 | } | |
271 | out = baum->out_buf_ptr; | |
272 | baum->out_buf_used += len; | |
273 | first = BUF_SIZE - baum->out_buf_ptr; | |
274 | if (len > first) { | |
275 | memcpy(baum->out_buf + out, cur, first); | |
276 | out = 0; | |
277 | len -= first; | |
278 | cur += first; | |
279 | } | |
280 | memcpy(baum->out_buf + out, cur, len); | |
281 | } | |
282 | } | |
283 | ||
284 | /* Called when the other end seems to have a wrong idea of our display size */ | |
285 | static void baum_cellCount_timer_cb(void *opaque) | |
286 | { | |
287 | BaumDriverState *baum = opaque; | |
288 | uint8_t cell_count[] = { BAUM_RSP_CellCount, baum->x * baum->y }; | |
289 | DPRINTF("Timeout waiting for DisplayData, sending cell count\n"); | |
290 | baum_write_packet(baum, cell_count, sizeof(cell_count)); | |
291 | } | |
292 | ||
293 | /* Try to interpret a whole incoming packet */ | |
294 | static int baum_eat_packet(BaumDriverState *baum, const uint8_t *buf, int len) | |
295 | { | |
296 | const uint8_t *cur = buf; | |
297 | uint8_t req = 0; | |
298 | ||
299 | if (!len--) | |
300 | return 0; | |
301 | if (*cur++ != ESC) { | |
302 | while (*cur != ESC) { | |
303 | if (!len--) | |
304 | return 0; | |
305 | cur++; | |
306 | } | |
307 | DPRINTF("Dropped %d bytes!\n", cur - buf); | |
308 | } | |
309 | ||
310 | #define EAT(c) do {\ | |
311 | if (!len--) \ | |
312 | return 0; \ | |
313 | if ((c = *cur++) == ESC) { \ | |
314 | if (!len--) \ | |
315 | return 0; \ | |
316 | if (*cur++ != ESC) { \ | |
317 | DPRINTF("Broken packet %#2x, tossing\n", req); \ | |
318 | if (qemu_timer_pending(baum->cellCount_timer)) { \ | |
319 | qemu_del_timer(baum->cellCount_timer); \ | |
320 | baum_cellCount_timer_cb(baum); \ | |
321 | } \ | |
322 | return (cur - 2 - buf); \ | |
323 | } \ | |
324 | } \ | |
325 | } while (0) | |
326 | ||
327 | EAT(req); | |
328 | switch (req) { | |
329 | case BAUM_REQ_DisplayData: | |
330 | { | |
331 | uint8_t cells[baum->x * baum->y], c; | |
332 | uint8_t text[baum->x * baum->y]; | |
333 | uint8_t zero[baum->x * baum->y]; | |
334 | int cursor = BRLAPI_CURSOR_OFF; | |
335 | int i; | |
336 | ||
337 | /* Allow 100ms to complete the DisplayData packet */ | |
338 | qemu_mod_timer(baum->cellCount_timer, qemu_get_clock(vm_clock) + ticks_per_sec / 10); | |
339 | for (i = 0; i < baum->x * baum->y ; i++) { | |
340 | EAT(c); | |
341 | cells[i] = c; | |
342 | if ((c & (BRLAPI_DOT7|BRLAPI_DOT8)) | |
343 | == (BRLAPI_DOT7|BRLAPI_DOT8)) { | |
344 | cursor = i + 1; | |
345 | c &= ~(BRLAPI_DOT7|BRLAPI_DOT8); | |
346 | } | |
347 | if (!(c = nabcc_translation[c])) | |
348 | c = '?'; | |
349 | text[i] = c; | |
350 | } | |
351 | qemu_del_timer(baum->cellCount_timer); | |
352 | ||
353 | memset(zero, 0, sizeof(zero)); | |
354 | ||
355 | brlapi_writeArguments_t wa = { | |
356 | .displayNumber = BRLAPI_DISPLAY_DEFAULT, | |
357 | .regionBegin = 1, | |
358 | .regionSize = baum->x * baum->y, | |
4f72c4dd | 359 | .text = (char *)text, |
2e4d9fb1 AJ |
360 | .textSize = baum->x * baum->y, |
361 | .andMask = zero, | |
362 | .orMask = cells, | |
363 | .cursor = cursor, | |
4f72c4dd | 364 | .charset = (char *)"ISO-8859-1", |
2e4d9fb1 AJ |
365 | }; |
366 | ||
367 | if (brlapi__write(baum->brlapi, &wa) == -1) | |
368 | brlapi_perror("baum brlapi_write"); | |
369 | break; | |
370 | } | |
371 | case BAUM_REQ_SetMode: | |
372 | { | |
373 | uint8_t mode, setting; | |
374 | DPRINTF("SetMode\n"); | |
375 | EAT(mode); | |
376 | EAT(setting); | |
377 | /* ignore */ | |
378 | break; | |
379 | } | |
380 | case BAUM_REQ_SetProtocol: | |
381 | { | |
382 | uint8_t protocol; | |
383 | DPRINTF("SetProtocol\n"); | |
384 | EAT(protocol); | |
385 | /* ignore */ | |
386 | break; | |
387 | } | |
388 | case BAUM_REQ_GetDeviceIdentity: | |
389 | { | |
390 | uint8_t identity[17] = { BAUM_RSP_DeviceIdentity, | |
391 | 'B','a','u','m',' ','V','a','r','i','o' }; | |
392 | DPRINTF("GetDeviceIdentity\n"); | |
393 | identity[11] = '0' + baum->x / 10; | |
394 | identity[12] = '0' + baum->x % 10; | |
395 | baum_write_packet(baum, identity, sizeof(identity)); | |
396 | break; | |
397 | } | |
398 | case BAUM_REQ_GetVersionNumber: | |
399 | { | |
400 | uint8_t version[] = { BAUM_RSP_VersionNumber, 1 }; /* ? */ | |
401 | DPRINTF("GetVersionNumber\n"); | |
402 | baum_write_packet(baum, version, sizeof(version)); | |
403 | break; | |
404 | } | |
405 | case BAUM_REQ_GetSerialNumber: | |
406 | { | |
407 | uint8_t serial[] = { BAUM_RSP_SerialNumber, | |
408 | '0','0','0','0','0','0','0','0' }; | |
409 | DPRINTF("GetSerialNumber\n"); | |
410 | baum_write_packet(baum, serial, sizeof(serial)); | |
411 | break; | |
412 | } | |
413 | case BAUM_REQ_GetKeys: | |
414 | { | |
415 | DPRINTF("Get%0#2x\n", req); | |
416 | /* ignore */ | |
417 | break; | |
418 | } | |
419 | default: | |
420 | DPRINTF("unrecognized request %0#2x\n", req); | |
421 | do | |
422 | if (!len--) | |
423 | return 0; | |
424 | while (*cur++ != ESC); | |
425 | cur--; | |
426 | break; | |
427 | } | |
428 | return cur - buf; | |
429 | } | |
430 | ||
431 | /* The other end is writing some data. Store it and try to interpret */ | |
432 | static int baum_write(CharDriverState *chr, const uint8_t *buf, int len) | |
433 | { | |
434 | BaumDriverState *baum = chr->opaque; | |
435 | int tocopy, cur, eaten, orig_len = len; | |
436 | ||
437 | if (!len) | |
438 | return 0; | |
439 | if (!baum->brlapi) | |
440 | return len; | |
441 | ||
442 | while (len) { | |
443 | /* Complete our buffer as much as possible */ | |
444 | tocopy = len; | |
445 | if (tocopy > BUF_SIZE - baum->in_buf_used) | |
446 | tocopy = BUF_SIZE - baum->in_buf_used; | |
447 | ||
448 | memcpy(baum->in_buf + baum->in_buf_used, buf, tocopy); | |
449 | baum->in_buf_used += tocopy; | |
450 | buf += tocopy; | |
451 | len -= tocopy; | |
452 | ||
453 | /* Interpret it as much as possible */ | |
454 | cur = 0; | |
455 | while (cur < baum->in_buf_used && | |
456 | (eaten = baum_eat_packet(baum, baum->in_buf + cur, baum->in_buf_used - cur))) | |
457 | cur += eaten; | |
458 | ||
459 | /* Shift the remainder */ | |
460 | if (cur) { | |
461 | memmove(baum->in_buf, baum->in_buf + cur, baum->in_buf_used - cur); | |
462 | baum->in_buf_used -= cur; | |
463 | } | |
464 | ||
465 | /* And continue if any data left */ | |
466 | } | |
467 | return orig_len; | |
468 | } | |
469 | ||
470 | /* The other end sent us some event */ | |
471 | static void baum_send_event(CharDriverState *chr, int event) | |
472 | { | |
473 | BaumDriverState *baum = chr->opaque; | |
474 | switch (event) { | |
475 | case CHR_EVENT_BREAK: | |
476 | break; | |
477 | case CHR_EVENT_RESET: | |
478 | /* Reset state */ | |
479 | baum->in_buf_used = 0; | |
480 | break; | |
481 | } | |
482 | } | |
483 | ||
484 | /* Send the key code to the other end */ | |
485 | static void baum_send_key(BaumDriverState *baum, uint8_t type, uint8_t value) { | |
486 | uint8_t packet[] = { type, value }; | |
487 | DPRINTF("writing key %x %x\n", type, value); | |
488 | baum_write_packet(baum, packet, sizeof(packet)); | |
489 | } | |
490 | ||
491 | /* We got some data on the BrlAPI socket */ | |
492 | static void baum_chr_read(void *opaque) | |
493 | { | |
494 | BaumDriverState *baum = opaque; | |
495 | brlapi_keyCode_t code; | |
496 | int ret; | |
497 | if (!baum->brlapi) | |
498 | return; | |
499 | while ((ret = brlapi__readKey(baum->brlapi, 0, &code)) == 1) { | |
500 | DPRINTF("got key %"BRLAPI_PRIxKEYCODE"\n", code); | |
501 | /* Emulate */ | |
502 | switch (code & BRLAPI_KEY_TYPE_MASK) { | |
503 | case BRLAPI_KEY_TYPE_CMD: | |
504 | switch (code & BRLAPI_KEY_CMD_BLK_MASK) { | |
505 | case BRLAPI_KEY_CMD_ROUTE: | |
506 | baum_send_key(baum, BAUM_RSP_RoutingKey, (code & BRLAPI_KEY_CMD_ARG_MASK)+1); | |
507 | baum_send_key(baum, BAUM_RSP_RoutingKey, 0); | |
508 | break; | |
509 | case 0: | |
510 | switch (code & BRLAPI_KEY_CMD_ARG_MASK) { | |
511 | case BRLAPI_KEY_CMD_FWINLT: | |
512 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2); | |
513 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
514 | break; | |
515 | case BRLAPI_KEY_CMD_FWINRT: | |
516 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR2); | |
517 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
518 | break; | |
519 | case BRLAPI_KEY_CMD_LNUP: | |
520 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR1); | |
521 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
522 | break; | |
523 | case BRLAPI_KEY_CMD_LNDN: | |
524 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR3); | |
525 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
526 | break; | |
527 | case BRLAPI_KEY_CMD_TOP: | |
528 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TR1); | |
529 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
530 | break; | |
531 | case BRLAPI_KEY_CMD_BOT: | |
532 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL3|BAUM_TR3); | |
533 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
534 | break; | |
535 | case BRLAPI_KEY_CMD_TOP_LEFT: | |
536 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1); | |
537 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
538 | break; | |
539 | case BRLAPI_KEY_CMD_BOT_LEFT: | |
540 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR3); | |
541 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
542 | break; | |
543 | case BRLAPI_KEY_CMD_HOME: | |
544 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1|BAUM_TR3); | |
545 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
546 | break; | |
547 | case BRLAPI_KEY_CMD_PREFMENU: | |
548 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TL3|BAUM_TR1); | |
549 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); | |
550 | break; | |
551 | } | |
552 | } | |
553 | break; | |
554 | case BRLAPI_KEY_TYPE_SYM: | |
555 | break; | |
556 | } | |
557 | } | |
558 | if (ret == -1 && (brlapi_errno != BRLAPI_ERROR_LIBCERR || errno != EINTR)) { | |
559 | brlapi_perror("baum: brlapi_readKey"); | |
560 | brlapi__closeConnection(baum->brlapi); | |
561 | free(baum->brlapi); | |
562 | baum->brlapi = NULL; | |
563 | } | |
564 | } | |
565 | ||
566 | CharDriverState *chr_baum_init(void) | |
567 | { | |
568 | BaumDriverState *baum; | |
569 | CharDriverState *chr; | |
570 | brlapi_handle_t *handle; | |
571 | #ifdef CONFIG_SDL | |
572 | SDL_SysWMinfo info; | |
573 | #endif | |
574 | int tty; | |
575 | ||
576 | baum = qemu_mallocz(sizeof(BaumDriverState)); | |
2e4d9fb1 | 577 | baum->chr = chr = qemu_mallocz(sizeof(CharDriverState)); |
2e4d9fb1 AJ |
578 | |
579 | chr->opaque = baum; | |
580 | chr->chr_write = baum_write; | |
581 | chr->chr_send_event = baum_send_event; | |
582 | chr->chr_accept_input = baum_accept_input; | |
583 | ||
584 | handle = qemu_mallocz(brlapi_getHandleSize()); | |
2e4d9fb1 AJ |
585 | baum->brlapi = handle; |
586 | ||
587 | baum->brlapi_fd = brlapi__openConnection(handle, NULL, NULL); | |
588 | if (baum->brlapi_fd == -1) { | |
589 | brlapi_perror("baum_init: brlapi_openConnection"); | |
590 | goto fail_handle; | |
591 | } | |
592 | ||
593 | baum->cellCount_timer = qemu_new_timer(vm_clock, baum_cellCount_timer_cb, baum); | |
594 | ||
595 | if (brlapi__getDisplaySize(handle, &baum->x, &baum->y) == -1) { | |
596 | brlapi_perror("baum_init: brlapi_getDisplaySize"); | |
597 | goto fail; | |
598 | } | |
599 | ||
600 | #ifdef CONFIG_SDL | |
601 | memset(&info, 0, sizeof(info)); | |
602 | SDL_VERSION(&info.version); | |
603 | if (SDL_GetWMInfo(&info)) | |
604 | tty = info.info.x11.wmwindow; | |
605 | else | |
606 | #endif | |
607 | tty = BRLAPI_TTY_DEFAULT; | |
608 | ||
609 | if (brlapi__enterTtyMode(handle, tty, NULL) == -1) { | |
610 | brlapi_perror("baum_init: brlapi_enterTtyMode"); | |
611 | goto fail; | |
612 | } | |
613 | ||
614 | qemu_set_fd_handler(baum->brlapi_fd, baum_chr_read, NULL, baum); | |
615 | ||
616 | qemu_chr_reset(chr); | |
617 | ||
618 | return chr; | |
619 | ||
620 | fail: | |
621 | qemu_free_timer(baum->cellCount_timer); | |
622 | brlapi__closeConnection(handle); | |
260cfc43 | 623 | fail_handle: |
2e4d9fb1 | 624 | free(handle); |
2e4d9fb1 | 625 | free(chr); |
2e4d9fb1 AJ |
626 | free(baum); |
627 | return NULL; | |
628 | } | |
629 | ||
630 | USBDevice *usb_baum_init(void) | |
631 | { | |
632 | /* USB Product ID of Super Vario 40 */ | |
633 | return usb_serial_init("productid=FE72:braille"); | |
634 | } |