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1 | /* |
1 | /* |
2 | * Copyright (c) 2001-2004 Jakub Jermar |
2 | * Copyright (c) 2001-2004 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup genarch_drivers |
29 | /** @addtogroup genarch_drivers |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** |
32 | /** |
33 | * @file |
33 | * @file |
34 | * @brief EGA driver. |
34 | * @brief EGA driver. |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #include <genarch/drivers/ega/ega.h> |
37 | #include <genarch/drivers/ega/ega.h> |
38 | #include <putchar.h> |
38 | #include <putchar.h> |
39 | #include <mm/page.h> |
39 | #include <mm/page.h> |
40 | #include <mm/as.h> |
40 | #include <mm/as.h> |
41 | #include <mm/slab.h> |
41 | #include <mm/slab.h> |
42 | #include <arch/mm/page.h> |
42 | #include <arch/mm/page.h> |
43 | #include <synch/spinlock.h> |
43 | #include <synch/spinlock.h> |
44 | #include <arch/types.h> |
44 | #include <arch/types.h> |
45 | #include <arch/asm.h> |
45 | #include <arch/asm.h> |
46 | #include <memstr.h> |
46 | #include <memstr.h> |
- | 47 | #include <string.h> |
|
47 | #include <console/chardev.h> |
48 | #include <console/chardev.h> |
48 | #include <console/console.h> |
49 | #include <console/console.h> |
49 | #include <sysinfo/sysinfo.h> |
50 | #include <sysinfo/sysinfo.h> |
50 | #include <ddi/ddi.h> |
51 | #include <ddi/ddi.h> |
51 | 52 | ||
52 | /* |
53 | /* |
53 | * The EGA driver. |
54 | * The EGA driver. |
54 | * Simple and short. Function for displaying characters and "scrolling". |
55 | * Simple and short. Function for displaying characters and "scrolling". |
55 | */ |
56 | */ |
56 | 57 | ||
57 | SPINLOCK_INITIALIZE(egalock); |
58 | SPINLOCK_INITIALIZE(egalock); |
58 | static uint32_t ega_cursor; |
59 | static uint32_t ega_cursor; |
59 | static uint8_t *videoram; |
60 | static uint8_t *videoram; |
60 | static uint8_t *backbuf; |
61 | static uint8_t *backbuf; |
61 | static ioport8_t *ega_base; |
62 | static ioport8_t *ega_base; |
62 | 63 | ||
63 | #define SPACE 0x20 |
64 | #define SPACE 0x20 |
64 | #define STYLE 0x1e |
65 | #define STYLE 0x1e |
65 | #define INVAL 0x17 |
66 | #define INVAL 0x17 |
66 | 67 | ||
67 | #define EMPTY_CHAR ((STYLE << 8) | SPACE) |
68 | #define EMPTY_CHAR ((STYLE << 8) | SPACE) |
68 | 69 | ||
69 | static uint16_t ega_oem_glyph(const wchar_t ch) |
70 | static uint16_t ega_oem_glyph(const wchar_t ch) |
70 | { |
71 | { |
71 | if ((ch >= 0x0000) && (ch <= 0x007f)) |
72 | if ((ch >= 0x0000) && (ch <= 0x007f)) |
72 | return ch; |
73 | return ch; |
73 | 74 | ||
74 | if (ch == 0x00a0) |
75 | if (ch == 0x00a0) |
75 | return 255; |
76 | return 255; |
76 | 77 | ||
77 | if (ch == 0x00a1) |
78 | if (ch == 0x00a1) |
78 | return 173; |
79 | return 173; |
79 | 80 | ||
80 | if ((ch >= 0x00a2) && (ch <= 0x00a3)) |
81 | if ((ch >= 0x00a2) && (ch <= 0x00a3)) |
81 | return (ch - 7); |
82 | return (ch - 7); |
82 | 83 | ||
83 | if (ch == 0x00a5) |
84 | if (ch == 0x00a5) |
84 | return 157; |
85 | return 157; |
85 | 86 | ||
86 | if (ch == 0x00aa) |
87 | if (ch == 0x00aa) |
87 | return 166; |
88 | return 166; |
88 | 89 | ||
89 | if (ch == 0x00ab) |
90 | if (ch == 0x00ab) |
90 | return 174; |
91 | return 174; |
91 | 92 | ||
92 | if (ch == 0x00ac) |
93 | if (ch == 0x00ac) |
93 | return 170; |
94 | return 170; |
94 | 95 | ||
95 | if (ch == 0x00b0) |
96 | if (ch == 0x00b0) |
96 | return 248; |
97 | return 248; |
97 | 98 | ||
98 | if (ch == 0x00b1) |
99 | if (ch == 0x00b1) |
99 | return 241; |
100 | return 241; |
100 | 101 | ||
101 | if (ch == 0x00b2) |
102 | if (ch == 0x00b2) |
102 | return 253; |
103 | return 253; |
103 | 104 | ||
104 | if (ch == 0x00b5) |
105 | if (ch == 0x00b5) |
105 | return 230; |
106 | return 230; |
106 | 107 | ||
107 | if (ch == 0x00b7) |
108 | if (ch == 0x00b7) |
108 | return 250; |
109 | return 250; |
109 | 110 | ||
110 | if (ch == 0x00ba) |
111 | if (ch == 0x00ba) |
111 | return 167; |
112 | return 167; |
112 | 113 | ||
113 | if (ch == 0x00bb) |
114 | if (ch == 0x00bb) |
114 | return 175; |
115 | return 175; |
115 | 116 | ||
116 | if (ch == 0x00bc) |
117 | if (ch == 0x00bc) |
117 | return 172; |
118 | return 172; |
118 | 119 | ||
119 | if (ch == 0x00bd) |
120 | if (ch == 0x00bd) |
120 | return 171; |
121 | return 171; |
121 | 122 | ||
122 | if (ch == 0x00bf) |
123 | if (ch == 0x00bf) |
123 | return 168; |
124 | return 168; |
124 | 125 | ||
125 | if ((ch >= 0x00c4) && (ch <= 0x00c5)) |
126 | if ((ch >= 0x00c4) && (ch <= 0x00c5)) |
126 | return (ch - 54); |
127 | return (ch - 54); |
127 | 128 | ||
128 | if (ch == 0x00c6) |
129 | if (ch == 0x00c6) |
129 | return 146; |
130 | return 146; |
130 | 131 | ||
131 | if (ch == 0x00c7) |
132 | if (ch == 0x00c7) |
132 | return 128; |
133 | return 128; |
133 | 134 | ||
134 | if (ch == 0x00c9) |
135 | if (ch == 0x00c9) |
135 | return 144; |
136 | return 144; |
136 | 137 | ||
137 | if (ch == 0x00d1) |
138 | if (ch == 0x00d1) |
138 | return 165; |
139 | return 165; |
139 | 140 | ||
140 | if (ch == 0x00d6) |
141 | if (ch == 0x00d6) |
141 | return 153; |
142 | return 153; |
142 | 143 | ||
143 | if (ch == 0x00dc) |
144 | if (ch == 0x00dc) |
144 | return 154; |
145 | return 154; |
145 | 146 | ||
146 | if (ch == 0x00df) |
147 | if (ch == 0x00df) |
147 | return 225; |
148 | return 225; |
148 | 149 | ||
149 | if (ch == 0x00e0) |
150 | if (ch == 0x00e0) |
150 | return 133; |
151 | return 133; |
151 | 152 | ||
152 | if (ch == 0x00e1) |
153 | if (ch == 0x00e1) |
153 | return 160; |
154 | return 160; |
154 | 155 | ||
155 | if (ch == 0x00e2) |
156 | if (ch == 0x00e2) |
156 | return 131; |
157 | return 131; |
157 | 158 | ||
158 | if (ch == 0x00e4) |
159 | if (ch == 0x00e4) |
159 | return 132; |
160 | return 132; |
160 | 161 | ||
161 | if (ch == 0x00e5) |
162 | if (ch == 0x00e5) |
162 | return 134; |
163 | return 134; |
163 | 164 | ||
164 | if (ch == 0x00e6) |
165 | if (ch == 0x00e6) |
165 | return 145; |
166 | return 145; |
166 | 167 | ||
167 | if (ch == 0x00e7) |
168 | if (ch == 0x00e7) |
168 | return 135; |
169 | return 135; |
169 | 170 | ||
170 | if (ch == 0x00e8) |
171 | if (ch == 0x00e8) |
171 | return 138; |
172 | return 138; |
172 | 173 | ||
173 | if (ch == 0x00e9) |
174 | if (ch == 0x00e9) |
174 | return 130; |
175 | return 130; |
175 | 176 | ||
176 | if ((ch >= 0x00ea) && (ch <= 0x00eb)) |
177 | if ((ch >= 0x00ea) && (ch <= 0x00eb)) |
177 | return (ch - 98); |
178 | return (ch - 98); |
178 | 179 | ||
179 | if (ch == 0x00ec) |
180 | if (ch == 0x00ec) |
180 | return 141; |
181 | return 141; |
181 | 182 | ||
182 | if (ch == 0x00ed) |
183 | if (ch == 0x00ed) |
183 | return 161; |
184 | return 161; |
184 | 185 | ||
185 | if (ch == 0x00ee) |
186 | if (ch == 0x00ee) |
186 | return 140; |
187 | return 140; |
187 | 188 | ||
188 | if (ch == 0x00ef) |
189 | if (ch == 0x00ef) |
189 | return 139; |
190 | return 139; |
190 | 191 | ||
191 | if (ch == 0x00f1) |
192 | if (ch == 0x00f1) |
192 | return 164; |
193 | return 164; |
193 | 194 | ||
194 | if (ch == 0x00f2) |
195 | if (ch == 0x00f2) |
195 | return 149; |
196 | return 149; |
196 | 197 | ||
197 | if (ch == 0x00f3) |
198 | if (ch == 0x00f3) |
198 | return 162; |
199 | return 162; |
199 | 200 | ||
200 | if (ch == 0x00f4) |
201 | if (ch == 0x00f4) |
201 | return 147; |
202 | return 147; |
202 | 203 | ||
203 | if (ch == 0x00f6) |
204 | if (ch == 0x00f6) |
204 | return 148; |
205 | return 148; |
205 | 206 | ||
206 | if (ch == 0x00f7) |
207 | if (ch == 0x00f7) |
207 | return 246; |
208 | return 246; |
208 | 209 | ||
209 | if (ch == 0x00f9) |
210 | if (ch == 0x00f9) |
210 | return 151; |
211 | return 151; |
211 | 212 | ||
212 | if (ch == 0x00fa) |
213 | if (ch == 0x00fa) |
213 | return 163; |
214 | return 163; |
214 | 215 | ||
215 | if (ch == 0x00fb) |
216 | if (ch == 0x00fb) |
216 | return 150; |
217 | return 150; |
217 | 218 | ||
218 | if (ch == 0x00fc) |
219 | if (ch == 0x00fc) |
219 | return 129; |
220 | return 129; |
220 | 221 | ||
221 | if (ch == 0x00ff) |
222 | if (ch == 0x00ff) |
222 | return 152; |
223 | return 152; |
223 | 224 | ||
224 | if (ch == 0x0192) |
225 | if (ch == 0x0192) |
225 | return 159; |
226 | return 159; |
226 | 227 | ||
227 | if (ch == 0x0393) |
228 | if (ch == 0x0393) |
228 | return 226; |
229 | return 226; |
229 | 230 | ||
230 | if (ch == 0x0398) |
231 | if (ch == 0x0398) |
231 | return 233; |
232 | return 233; |
232 | 233 | ||
233 | if (ch == 0x03a3) |
234 | if (ch == 0x03a3) |
234 | return 228; |
235 | return 228; |
235 | 236 | ||
236 | if (ch == 0x03a6) |
237 | if (ch == 0x03a6) |
237 | return 232; |
238 | return 232; |
238 | 239 | ||
239 | if (ch == 0x03a9) |
240 | if (ch == 0x03a9) |
240 | return 234; |
241 | return 234; |
241 | 242 | ||
242 | if (ch == 0x03b1) |
243 | if (ch == 0x03b1) |
243 | return 224; |
244 | return 224; |
244 | 245 | ||
245 | if (ch == 0x03b4) |
246 | if (ch == 0x03b4) |
246 | return 235; |
247 | return 235; |
247 | 248 | ||
248 | if (ch == 0x03b5) |
249 | if (ch == 0x03b5) |
249 | return 238; |
250 | return 238; |
250 | 251 | ||
251 | if (ch == 0x03c0) |
252 | if (ch == 0x03c0) |
252 | return 227; |
253 | return 227; |
253 | 254 | ||
254 | if (ch == 0x03c3) |
255 | if (ch == 0x03c3) |
255 | return 229; |
256 | return 229; |
256 | 257 | ||
257 | if (ch == 0x03c4) |
258 | if (ch == 0x03c4) |
258 | return 231; |
259 | return 231; |
259 | 260 | ||
260 | if (ch == 0x03c6) |
261 | if (ch == 0x03c6) |
261 | return 237; |
262 | return 237; |
262 | 263 | ||
263 | if (ch == 0x207f) |
264 | if (ch == 0x207f) |
264 | return 252; |
265 | return 252; |
265 | 266 | ||
266 | if (ch == 0x20a7) |
267 | if (ch == 0x20a7) |
267 | return 158; |
268 | return 158; |
268 | 269 | ||
269 | if (ch == 0x2219) |
270 | if (ch == 0x2219) |
270 | return 249; |
271 | return 249; |
271 | 272 | ||
272 | if (ch == 0x221a) |
273 | if (ch == 0x221a) |
273 | return 251; |
274 | return 251; |
274 | 275 | ||
275 | if (ch == 0x221e) |
276 | if (ch == 0x221e) |
276 | return 236; |
277 | return 236; |
277 | 278 | ||
278 | if (ch == 0x2229) |
279 | if (ch == 0x2229) |
279 | return 239; |
280 | return 239; |
280 | 281 | ||
281 | if (ch == 0x2248) |
282 | if (ch == 0x2248) |
282 | return 247; |
283 | return 247; |
283 | 284 | ||
284 | if (ch == 0x2261) |
285 | if (ch == 0x2261) |
285 | return 240; |
286 | return 240; |
286 | 287 | ||
287 | if (ch == 0x2264) |
288 | if (ch == 0x2264) |
288 | return 243; |
289 | return 243; |
289 | 290 | ||
290 | if (ch == 0x2265) |
291 | if (ch == 0x2265) |
291 | return 242; |
292 | return 242; |
292 | 293 | ||
293 | if (ch == 0x2310) |
294 | if (ch == 0x2310) |
294 | return 169; |
295 | return 169; |
295 | 296 | ||
296 | if ((ch >= 0x2320) && (ch <= 0x2321)) |
297 | if ((ch >= 0x2320) && (ch <= 0x2321)) |
297 | return (ch - 8748); |
298 | return (ch - 8748); |
298 | 299 | ||
299 | if (ch == 0x2500) |
300 | if (ch == 0x2500) |
300 | return 196; |
301 | return 196; |
301 | 302 | ||
302 | if (ch == 0x2502) |
303 | if (ch == 0x2502) |
303 | return 179; |
304 | return 179; |
304 | 305 | ||
305 | if (ch == 0x250c) |
306 | if (ch == 0x250c) |
306 | return 218; |
307 | return 218; |
307 | 308 | ||
308 | if (ch == 0x2510) |
309 | if (ch == 0x2510) |
309 | return 191; |
310 | return 191; |
310 | 311 | ||
311 | if (ch == 0x2514) |
312 | if (ch == 0x2514) |
312 | return 192; |
313 | return 192; |
313 | 314 | ||
314 | if (ch == 0x2518) |
315 | if (ch == 0x2518) |
315 | return 217; |
316 | return 217; |
316 | 317 | ||
317 | if (ch == 0x251c) |
318 | if (ch == 0x251c) |
318 | return 195; |
319 | return 195; |
319 | 320 | ||
320 | if (ch == 0x2524) |
321 | if (ch == 0x2524) |
321 | return 180; |
322 | return 180; |
322 | 323 | ||
323 | if (ch == 0x252c) |
324 | if (ch == 0x252c) |
324 | return 194; |
325 | return 194; |
325 | 326 | ||
326 | if (ch == 0x2534) |
327 | if (ch == 0x2534) |
327 | return 193; |
328 | return 193; |
328 | 329 | ||
329 | if (ch == 0x253c) |
330 | if (ch == 0x253c) |
330 | return 197; |
331 | return 197; |
331 | 332 | ||
332 | if (ch == 0x2550) |
333 | if (ch == 0x2550) |
333 | return 205; |
334 | return 205; |
334 | 335 | ||
335 | if (ch == 0x2551) |
336 | if (ch == 0x2551) |
336 | return 186; |
337 | return 186; |
337 | 338 | ||
338 | if ((ch >= 0x2552) && (ch <= 0x2553)) |
339 | if ((ch >= 0x2552) && (ch <= 0x2553)) |
339 | return (ch - 9341); |
340 | return (ch - 9341); |
340 | 341 | ||
341 | if (ch == 0x2554) |
342 | if (ch == 0x2554) |
342 | return 201; |
343 | return 201; |
343 | 344 | ||
344 | if (ch == 0x2555) |
345 | if (ch == 0x2555) |
345 | return 184; |
346 | return 184; |
346 | 347 | ||
347 | if (ch == 0x2556) |
348 | if (ch == 0x2556) |
348 | return 183; |
349 | return 183; |
349 | 350 | ||
350 | if (ch == 0x2557) |
351 | if (ch == 0x2557) |
351 | return 187; |
352 | return 187; |
352 | 353 | ||
353 | if (ch == 0x2558) |
354 | if (ch == 0x2558) |
354 | return 212; |
355 | return 212; |
355 | 356 | ||
356 | if (ch == 0x2559) |
357 | if (ch == 0x2559) |
357 | return 211; |
358 | return 211; |
358 | 359 | ||
359 | if (ch == 0x255a) |
360 | if (ch == 0x255a) |
360 | return 200; |
361 | return 200; |
361 | 362 | ||
362 | if (ch == 0x255b) |
363 | if (ch == 0x255b) |
363 | return 190; |
364 | return 190; |
364 | 365 | ||
365 | if (ch == 0x255c) |
366 | if (ch == 0x255c) |
366 | return 189; |
367 | return 189; |
367 | 368 | ||
368 | if (ch == 0x255d) |
369 | if (ch == 0x255d) |
369 | return 188; |
370 | return 188; |
370 | 371 | ||
371 | if ((ch >= 0x255e) && (ch <= 0x255f)) |
372 | if ((ch >= 0x255e) && (ch <= 0x255f)) |
372 | return (ch - 9368); |
373 | return (ch - 9368); |
373 | 374 | ||
374 | if (ch == 0x2560) |
375 | if (ch == 0x2560) |
375 | return 204; |
376 | return 204; |
376 | 377 | ||
377 | if ((ch >= 0x2561) && (ch <= 0x2562)) |
378 | if ((ch >= 0x2561) && (ch <= 0x2562)) |
378 | return (ch - 9388); |
379 | return (ch - 9388); |
379 | 380 | ||
380 | if (ch == 0x2563) |
381 | if (ch == 0x2563) |
381 | return 185; |
382 | return 185; |
382 | 383 | ||
383 | if ((ch >= 0x2564) && (ch <= 0x2565)) |
384 | if ((ch >= 0x2564) && (ch <= 0x2565)) |
384 | return (ch - 9363); |
385 | return (ch - 9363); |
385 | 386 | ||
386 | if (ch == 0x2566) |
387 | if (ch == 0x2566) |
387 | return 203; |
388 | return 203; |
388 | 389 | ||
389 | if ((ch >= 0x2567) && (ch <= 0x2568)) |
390 | if ((ch >= 0x2567) && (ch <= 0x2568)) |
390 | return (ch - 9368); |
391 | return (ch - 9368); |
391 | 392 | ||
392 | if (ch == 0x2569) |
393 | if (ch == 0x2569) |
393 | return 202; |
394 | return 202; |
394 | 395 | ||
395 | if (ch == 0x256a) |
396 | if (ch == 0x256a) |
396 | return 216; |
397 | return 216; |
397 | 398 | ||
398 | if (ch == 0x256b) |
399 | if (ch == 0x256b) |
399 | return 215; |
400 | return 215; |
400 | 401 | ||
401 | if (ch == 0x256c) |
402 | if (ch == 0x256c) |
402 | return 206; |
403 | return 206; |
403 | 404 | ||
404 | if (ch == 0x2580) |
405 | if (ch == 0x2580) |
405 | return 223; |
406 | return 223; |
406 | 407 | ||
407 | if (ch == 0x2584) |
408 | if (ch == 0x2584) |
408 | return 220; |
409 | return 220; |
409 | 410 | ||
410 | if (ch == 0x2588) |
411 | if (ch == 0x2588) |
411 | return 219; |
412 | return 219; |
412 | 413 | ||
413 | if (ch == 0x258c) |
414 | if (ch == 0x258c) |
414 | return 221; |
415 | return 221; |
415 | 416 | ||
416 | if (ch == 0x2590) |
417 | if (ch == 0x2590) |
417 | return 222; |
418 | return 222; |
418 | 419 | ||
419 | if ((ch >= 0x2591) && (ch <= 0x2593)) |
420 | if ((ch >= 0x2591) && (ch <= 0x2593)) |
420 | return (ch - 9441); |
421 | return (ch - 9441); |
421 | 422 | ||
422 | return 256; |
423 | return 256; |
423 | } |
424 | } |
424 | 425 | ||
425 | /* |
426 | /* |
426 | * This function takes care of scrolling. |
427 | * This function takes care of scrolling. |
427 | */ |
428 | */ |
428 | static void ega_check_cursor(void) |
429 | static void ega_check_cursor(void) |
429 | { |
430 | { |
430 | if (ega_cursor < EGA_SCREEN) |
431 | if (ega_cursor < EGA_SCREEN) |
431 | return; |
432 | return; |
432 | 433 | ||
433 | memmove((void *) videoram, (void *) (videoram + EGA_COLS * 2), |
434 | memmove((void *) videoram, (void *) (videoram + EGA_COLS * 2), |
434 | (EGA_SCREEN - EGA_COLS) * 2); |
435 | (EGA_SCREEN - EGA_COLS) * 2); |
435 | memmove((void *) backbuf, (void *) (backbuf + EGA_COLS * 2), |
436 | memmove((void *) backbuf, (void *) (backbuf + EGA_COLS * 2), |
436 | (EGA_SCREEN - EGA_COLS) * 2); |
437 | (EGA_SCREEN - EGA_COLS) * 2); |
437 | memsetw(videoram + (EGA_SCREEN - EGA_COLS) * 2, EGA_COLS, EMPTY_CHAR); |
438 | memsetw(videoram + (EGA_SCREEN - EGA_COLS) * 2, EGA_COLS, EMPTY_CHAR); |
438 | memsetw(backbuf + (EGA_SCREEN - EGA_COLS) * 2, EGA_COLS, EMPTY_CHAR); |
439 | memsetw(backbuf + (EGA_SCREEN - EGA_COLS) * 2, EGA_COLS, EMPTY_CHAR); |
439 | ega_cursor = ega_cursor - EGA_COLS; |
440 | ega_cursor = ega_cursor - EGA_COLS; |
440 | } |
441 | } |
441 | 442 | ||
442 | static void ega_show_cursor(void) |
443 | static void ega_show_cursor(void) |
443 | { |
444 | { |
444 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0a); |
445 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0a); |
445 | uint8_t stat = pio_read_8(ega_base + EGA_DATA_REG); |
446 | uint8_t stat = pio_read_8(ega_base + EGA_DATA_REG); |
446 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0a); |
447 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0a); |
447 | pio_write_8(ega_base + EGA_DATA_REG, stat & (~(1 << 5))); |
448 | pio_write_8(ega_base + EGA_DATA_REG, stat & (~(1 << 5))); |
448 | } |
449 | } |
449 | 450 | ||
450 | static void ega_move_cursor(void) |
451 | static void ega_move_cursor(void) |
451 | { |
452 | { |
452 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0e); |
453 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0e); |
453 | pio_write_8(ega_base + EGA_DATA_REG, (uint8_t) ((ega_cursor >> 8) & 0xff)); |
454 | pio_write_8(ega_base + EGA_DATA_REG, (uint8_t) ((ega_cursor >> 8) & 0xff)); |
454 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0f); |
455 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0f); |
455 | pio_write_8(ega_base + EGA_DATA_REG, (uint8_t) (ega_cursor & 0xff)); |
456 | pio_write_8(ega_base + EGA_DATA_REG, (uint8_t) (ega_cursor & 0xff)); |
456 | } |
457 | } |
457 | 458 | ||
458 | static void ega_sync_cursor(void) |
459 | static void ega_sync_cursor(void) |
459 | { |
460 | { |
460 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0e); |
461 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0e); |
461 | uint8_t hi = pio_read_8(ega_base + EGA_DATA_REG); |
462 | uint8_t hi = pio_read_8(ega_base + EGA_DATA_REG); |
462 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0f); |
463 | pio_write_8(ega_base + EGA_INDEX_REG, 0x0f); |
463 | uint8_t lo = pio_read_8(ega_base + EGA_DATA_REG); |
464 | uint8_t lo = pio_read_8(ega_base + EGA_DATA_REG); |
464 | 465 | ||
465 | ega_cursor = (hi << 8) | lo; |
466 | ega_cursor = (hi << 8) | lo; |
466 | 467 | ||
467 | if (ega_cursor >= EGA_SCREEN) |
468 | if (ega_cursor >= EGA_SCREEN) |
468 | ega_cursor = 0; |
469 | ega_cursor = 0; |
469 | 470 | ||
470 | if ((ega_cursor % EGA_COLS) != 0) |
471 | if ((ega_cursor % EGA_COLS) != 0) |
471 | ega_cursor = (ega_cursor + EGA_COLS) - ega_cursor % EGA_COLS; |
472 | ega_cursor = (ega_cursor + EGA_COLS) - ega_cursor % EGA_COLS; |
472 | 473 | ||
473 | memsetw(videoram + ega_cursor * 2, EGA_SCREEN - ega_cursor, EMPTY_CHAR); |
474 | memsetw(videoram + ega_cursor * 2, EGA_SCREEN - ega_cursor, EMPTY_CHAR); |
474 | memsetw(backbuf + ega_cursor * 2, EGA_SCREEN - ega_cursor, EMPTY_CHAR); |
475 | memsetw(backbuf + ega_cursor * 2, EGA_SCREEN - ega_cursor, EMPTY_CHAR); |
475 | 476 | ||
476 | ega_check_cursor(); |
477 | ega_check_cursor(); |
477 | ega_move_cursor(); |
478 | ega_move_cursor(); |
478 | ega_show_cursor(); |
479 | ega_show_cursor(); |
479 | } |
480 | } |
480 | 481 | ||
481 | static void ega_display_char(wchar_t ch, bool silent) |
482 | static void ega_display_char(wchar_t ch, bool silent) |
482 | { |
483 | { |
483 | uint16_t index = ega_oem_glyph(ch); |
484 | uint16_t index = ega_oem_glyph(ch); |
484 | uint8_t glyph; |
485 | uint8_t glyph; |
485 | uint8_t style; |
486 | uint8_t style; |
486 | 487 | ||
487 | if ((index >> 8)) { |
488 | if ((index >> 8)) { |
488 | glyph = '?'; |
489 | glyph = U_SPECIAL; |
489 | style = INVAL; |
490 | style = INVAL; |
490 | } else { |
491 | } else { |
491 | glyph = index & 0xff; |
492 | glyph = index & 0xff; |
492 | style = STYLE; |
493 | style = STYLE; |
493 | } |
494 | } |
494 | 495 | ||
495 | backbuf[ega_cursor * 2] = glyph; |
496 | backbuf[ega_cursor * 2] = glyph; |
496 | backbuf[ega_cursor * 2 + 1] = style; |
497 | backbuf[ega_cursor * 2 + 1] = style; |
497 | 498 | ||
498 | if (!silent) { |
499 | if (!silent) { |
499 | videoram[ega_cursor * 2] = glyph; |
500 | videoram[ega_cursor * 2] = glyph; |
500 | videoram[ega_cursor * 2 + 1] = style; |
501 | videoram[ega_cursor * 2 + 1] = style; |
501 | } |
502 | } |
502 | } |
503 | } |
503 | 504 | ||
504 | static void ega_putchar(outdev_t *dev __attribute__((unused)), wchar_t ch, bool silent) |
505 | static void ega_putchar(outdev_t *dev __attribute__((unused)), wchar_t ch, bool silent) |
505 | { |
506 | { |
506 | ipl_t ipl; |
507 | ipl_t ipl; |
507 | 508 | ||
508 | ipl = interrupts_disable(); |
509 | ipl = interrupts_disable(); |
509 | spinlock_lock(&egalock); |
510 | spinlock_lock(&egalock); |
510 | 511 | ||
511 | switch (ch) { |
512 | switch (ch) { |
512 | case '\n': |
513 | case '\n': |
513 | ega_cursor = (ega_cursor + EGA_COLS) - ega_cursor % EGA_COLS; |
514 | ega_cursor = (ega_cursor + EGA_COLS) - ega_cursor % EGA_COLS; |
514 | break; |
515 | break; |
515 | case '\t': |
516 | case '\t': |
516 | ega_cursor = (ega_cursor + 8) - ega_cursor % 8; |
517 | ega_cursor = (ega_cursor + 8) - ega_cursor % 8; |
517 | break; |
518 | break; |
518 | case '\b': |
519 | case '\b': |
519 | if (ega_cursor % EGA_COLS) |
520 | if (ega_cursor % EGA_COLS) |
520 | ega_cursor--; |
521 | ega_cursor--; |
521 | break; |
522 | break; |
522 | default: |
523 | default: |
523 | ega_display_char(ch, silent); |
524 | ega_display_char(ch, silent); |
524 | ega_cursor++; |
525 | ega_cursor++; |
525 | break; |
526 | break; |
526 | } |
527 | } |
527 | ega_check_cursor(); |
528 | ega_check_cursor(); |
528 | 529 | ||
529 | if (!silent) |
530 | if (!silent) |
530 | ega_move_cursor(); |
531 | ega_move_cursor(); |
531 | 532 | ||
532 | spinlock_unlock(&egalock); |
533 | spinlock_unlock(&egalock); |
533 | interrupts_restore(ipl); |
534 | interrupts_restore(ipl); |
534 | } |
535 | } |
535 | 536 | ||
536 | static outdev_t ega_console; |
537 | static outdev_t ega_console; |
537 | static outdev_operations_t ega_ops = { |
538 | static outdev_operations_t ega_ops = { |
538 | .write = ega_putchar |
539 | .write = ega_putchar |
539 | }; |
540 | }; |
540 | 541 | ||
541 | void ega_init(ioport8_t *base, uintptr_t videoram_phys) |
542 | void ega_init(ioport8_t *base, uintptr_t videoram_phys) |
542 | { |
543 | { |
543 | /* Initialize the software structure. */ |
544 | /* Initialize the software structure. */ |
544 | ega_base = base; |
545 | ega_base = base; |
545 | 546 | ||
546 | backbuf = (uint8_t *) malloc(EGA_VRAM_SIZE, 0); |
547 | backbuf = (uint8_t *) malloc(EGA_VRAM_SIZE, 0); |
547 | if (!backbuf) |
548 | if (!backbuf) |
548 | panic("Unable to allocate backbuffer."); |
549 | panic("Unable to allocate backbuffer."); |
549 | 550 | ||
550 | videoram = (uint8_t *) hw_map(videoram_phys, EGA_VRAM_SIZE); |
551 | videoram = (uint8_t *) hw_map(videoram_phys, EGA_VRAM_SIZE); |
551 | 552 | ||
552 | /* Synchronize the back buffer and cursor position. */ |
553 | /* Synchronize the back buffer and cursor position. */ |
553 | memcpy(backbuf, videoram, EGA_VRAM_SIZE); |
554 | memcpy(backbuf, videoram, EGA_VRAM_SIZE); |
554 | ega_sync_cursor(); |
555 | ega_sync_cursor(); |
555 | 556 | ||
556 | outdev_initialize("ega", &ega_console, &ega_ops); |
557 | outdev_initialize("ega", &ega_console, &ega_ops); |
557 | stdout = &ega_console; |
558 | stdout = &ega_console; |
558 | 559 | ||
559 | sysinfo_set_item_val("fb", NULL, true); |
560 | sysinfo_set_item_val("fb", NULL, true); |
560 | sysinfo_set_item_val("fb.kind", NULL, 2); |
561 | sysinfo_set_item_val("fb.kind", NULL, 2); |
561 | sysinfo_set_item_val("fb.width", NULL, EGA_COLS); |
562 | sysinfo_set_item_val("fb.width", NULL, EGA_COLS); |
562 | sysinfo_set_item_val("fb.height", NULL, EGA_ROWS); |
563 | sysinfo_set_item_val("fb.height", NULL, EGA_ROWS); |
563 | sysinfo_set_item_val("fb.blinking", NULL, true); |
564 | sysinfo_set_item_val("fb.blinking", NULL, true); |
564 | sysinfo_set_item_val("fb.address.physical", NULL, videoram_phys); |
565 | sysinfo_set_item_val("fb.address.physical", NULL, videoram_phys); |
565 | } |
566 | } |
566 | 567 | ||
567 | void ega_redraw(void) |
568 | void ega_redraw(void) |
568 | { |
569 | { |
569 | memcpy(videoram, backbuf, EGA_VRAM_SIZE); |
570 | memcpy(videoram, backbuf, EGA_VRAM_SIZE); |
570 | ega_move_cursor(); |
571 | ega_move_cursor(); |
571 | ega_show_cursor(); |
572 | ega_show_cursor(); |
572 | } |
573 | } |
573 | 574 | ||
574 | /** @} |
575 | /** @} |
575 | */ |
576 | */ |
576 | 577 |