diff options
Diffstat (limited to 'apps/plugins/sdl/src/video/ipod/SDL_ipodvideo.c')
-rw-r--r-- | apps/plugins/sdl/src/video/ipod/SDL_ipodvideo.c | 733 |
1 files changed, 0 insertions, 733 deletions
diff --git a/apps/plugins/sdl/src/video/ipod/SDL_ipodvideo.c b/apps/plugins/sdl/src/video/ipod/SDL_ipodvideo.c deleted file mode 100644 index a2f3db3074..0000000000 --- a/apps/plugins/sdl/src/video/ipod/SDL_ipodvideo.c +++ /dev/null | |||
@@ -1,733 +0,0 @@ | |||
1 | /* | ||
2 | SDL - Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2012 Sam Lantinga | ||
4 | |||
5 | This library is free software; you can redistribute it and/or | ||
6 | modify it under the terms of the GNU Lesser General Public | ||
7 | License as published by the Free Software Foundation; either | ||
8 | version 2.1 of the License, or (at your option) any later version. | ||
9 | |||
10 | This library is distributed in the hope that it will be useful, | ||
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Lesser General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Lesser General Public | ||
16 | License along with this library; if not, write to the Free Software | ||
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
18 | |||
19 | Sam Lantinga | ||
20 | slouken@libsdl.org | ||
21 | */ | ||
22 | #include "SDL_config.h" | ||
23 | |||
24 | #include <sys/types.h> | ||
25 | #include <sys/ioctl.h> | ||
26 | |||
27 | #include <unistd.h> | ||
28 | #include <fcntl.h> | ||
29 | #include <string.h> | ||
30 | #include <termios.h> | ||
31 | #include <ctype.h> | ||
32 | |||
33 | #include <linux/vt.h> | ||
34 | #include <linux/kd.h> | ||
35 | #include <linux/keyboard.h> | ||
36 | #include <linux/fb.h> | ||
37 | |||
38 | #include "SDL_video.h" | ||
39 | #include "SDL_mouse.h" | ||
40 | #include "../SDL_sysvideo.h" | ||
41 | #include "../SDL_pixels_c.h" | ||
42 | #include "../../events/SDL_events_c.h" | ||
43 | #include "SDL_sysevents.h" | ||
44 | #include "SDL_ipodvideo.h" | ||
45 | |||
46 | #define _THIS SDL_VideoDevice *this | ||
47 | |||
48 | static int iPod_VideoInit (_THIS, SDL_PixelFormat *vformat); | ||
49 | static SDL_Rect **iPod_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags); | ||
50 | static SDL_Surface *iPod_SetVideoMode (_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | ||
51 | static int iPod_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color *colors); | ||
52 | static void iPod_UpdateRects (_THIS, int nrects, SDL_Rect *rects); | ||
53 | static void iPod_VideoQuit (_THIS); | ||
54 | static void iPod_PumpEvents (_THIS); | ||
55 | |||
56 | static long iPod_GetGeneration(); | ||
57 | |||
58 | static int initd = 0; | ||
59 | static int kbfd = -1; | ||
60 | static int fbfd = -1; | ||
61 | static int oldvt = -1; | ||
62 | static int curvt = -1; | ||
63 | static int old_kbmode = -1; | ||
64 | static long generation = 0; | ||
65 | static struct termios old_termios, cur_termios; | ||
66 | |||
67 | FILE *dbgout; | ||
68 | |||
69 | #define LCD_DATA 0x10 | ||
70 | #define LCD_CMD 0x08 | ||
71 | #define IPOD_OLD_LCD_BASE 0xc0001000 | ||
72 | #define IPOD_OLD_LCD_RTC 0xcf001110 | ||
73 | #define IPOD_NEW_LCD_BASE 0x70003000 | ||
74 | #define IPOD_NEW_LCD_RTC 0x60005010 | ||
75 | |||
76 | static unsigned long lcd_base, lcd_rtc, lcd_width, lcd_height; | ||
77 | |||
78 | static long iPod_GetGeneration() | ||
79 | { | ||
80 | int i; | ||
81 | char cpuinfo[256]; | ||
82 | char *ptr; | ||
83 | FILE *file; | ||
84 | |||
85 | if ((file = fopen("/proc/cpuinfo", "r")) != NULL) { | ||
86 | while (fgets(cpuinfo, sizeof(cpuinfo), file) != NULL) | ||
87 | if (SDL_strncmp(cpuinfo, "Revision", 8) == 0) | ||
88 | break; | ||
89 | fclose(file); | ||
90 | } | ||
91 | for (i = 0; !isspace(cpuinfo[i]); i++); | ||
92 | for (; isspace(cpuinfo[i]); i++); | ||
93 | ptr = cpuinfo + i + 2; | ||
94 | |||
95 | return SDL_strtol(ptr, NULL, 10); | ||
96 | } | ||
97 | |||
98 | static int iPod_Available() | ||
99 | { | ||
100 | return 1; | ||
101 | } | ||
102 | |||
103 | static void iPod_DeleteDevice (SDL_VideoDevice *device) | ||
104 | { | ||
105 | free (device->hidden); | ||
106 | free (device); | ||
107 | } | ||
108 | |||
109 | void iPod_InitOSKeymap (_THIS) {} | ||
110 | |||
111 | static SDL_VideoDevice *iPod_CreateDevice (int devindex) | ||
112 | { | ||
113 | SDL_VideoDevice *this; | ||
114 | |||
115 | this = (SDL_VideoDevice *)SDL_malloc (sizeof(SDL_VideoDevice)); | ||
116 | if (this) { | ||
117 | memset (this, 0, sizeof *this); | ||
118 | this->hidden = (struct SDL_PrivateVideoData *) SDL_malloc (sizeof(struct SDL_PrivateVideoData)); | ||
119 | } | ||
120 | if (!this || !this->hidden) { | ||
121 | SDL_OutOfMemory(); | ||
122 | if (this) | ||
123 | SDL_free (this); | ||
124 | return 0; | ||
125 | } | ||
126 | memset (this->hidden, 0, sizeof(struct SDL_PrivateVideoData)); | ||
127 | |||
128 | generation = iPod_GetGeneration(); | ||
129 | |||
130 | this->VideoInit = iPod_VideoInit; | ||
131 | this->ListModes = iPod_ListModes; | ||
132 | this->SetVideoMode = iPod_SetVideoMode; | ||
133 | this->SetColors = iPod_SetColors; | ||
134 | this->UpdateRects = iPod_UpdateRects; | ||
135 | this->VideoQuit = iPod_VideoQuit; | ||
136 | this->AllocHWSurface = 0; | ||
137 | this->CheckHWBlit = 0; | ||
138 | this->FillHWRect = 0; | ||
139 | this->SetHWColorKey = 0; | ||
140 | this->SetHWAlpha = 0; | ||
141 | this->LockHWSurface = 0; | ||
142 | this->UnlockHWSurface = 0; | ||
143 | this->FlipHWSurface = 0; | ||
144 | this->FreeHWSurface = 0; | ||
145 | this->SetCaption = 0; | ||
146 | this->SetIcon = 0; | ||
147 | this->IconifyWindow = 0; | ||
148 | this->GrabInput = 0; | ||
149 | this->GetWMInfo = 0; | ||
150 | this->InitOSKeymap = iPod_InitOSKeymap; | ||
151 | this->PumpEvents = iPod_PumpEvents; | ||
152 | this->free = iPod_DeleteDevice; | ||
153 | |||
154 | return this; | ||
155 | } | ||
156 | |||
157 | VideoBootStrap iPod_bootstrap = { | ||
158 | "ipod", "iPod Framebuffer Driver", | ||
159 | iPod_Available, iPod_CreateDevice | ||
160 | }; | ||
161 | |||
162 | //--// | ||
163 | |||
164 | static int iPod_VideoInit (_THIS, SDL_PixelFormat *vformat) | ||
165 | { | ||
166 | if (!initd) { | ||
167 | /*** Code adapted/copied from SDL fbcon driver. ***/ | ||
168 | |||
169 | static const char * const tty0[] = { "/dev/tty0", "/dev/vc/0", 0 }; | ||
170 | static const char * const vcs[] = { "/dev/vc/%d", "/dev/tty%d", 0 }; | ||
171 | int i, tty0_fd; | ||
172 | |||
173 | dbgout = fdopen (open ("/etc/sdlpod.log", O_WRONLY | O_SYNC | O_APPEND), "a"); | ||
174 | if (dbgout) { | ||
175 | setbuf (dbgout, 0); | ||
176 | fprintf (dbgout, "--> Started SDL <--\n"); | ||
177 | } | ||
178 | |||
179 | // Try to query for a free VT | ||
180 | tty0_fd = -1; | ||
181 | for ( i=0; tty0[i] && (tty0_fd < 0); ++i ) { | ||
182 | tty0_fd = open(tty0[i], O_WRONLY, 0); | ||
183 | } | ||
184 | if ( tty0_fd < 0 ) { | ||
185 | tty0_fd = dup(0); /* Maybe stdin is a VT? */ | ||
186 | } | ||
187 | ioctl(tty0_fd, VT_OPENQRY, &curvt); | ||
188 | close(tty0_fd); | ||
189 | |||
190 | tty0_fd = open("/dev/tty", O_RDWR, 0); | ||
191 | if ( tty0_fd >= 0 ) { | ||
192 | ioctl(tty0_fd, TIOCNOTTY, 0); | ||
193 | close(tty0_fd); | ||
194 | } | ||
195 | |||
196 | if ( (geteuid() == 0) && (curvt > 0) ) { | ||
197 | for ( i=0; vcs[i] && (kbfd < 0); ++i ) { | ||
198 | char vtpath[12]; | ||
199 | |||
200 | SDL_snprintf(vtpath, SDL_arraysize(vtpath), vcs[i], curvt); | ||
201 | kbfd = open(vtpath, O_RDWR); | ||
202 | } | ||
203 | } | ||
204 | if ( kbfd < 0 ) { | ||
205 | if (dbgout) fprintf (dbgout, "Couldn't open any VC\n"); | ||
206 | return -1; | ||
207 | } | ||
208 | if (dbgout) fprintf (stderr, "Current VT: %d\n", curvt); | ||
209 | |||
210 | if (kbfd >= 0) { | ||
211 | /* Switch to the correct virtual terminal */ | ||
212 | if ( curvt > 0 ) { | ||
213 | struct vt_stat vtstate; | ||
214 | |||
215 | if ( ioctl(kbfd, VT_GETSTATE, &vtstate) == 0 ) { | ||
216 | oldvt = vtstate.v_active; | ||
217 | } | ||
218 | if ( ioctl(kbfd, VT_ACTIVATE, curvt) == 0 ) { | ||
219 | if (dbgout) fprintf (dbgout, "Waiting for switch to this VT... "); | ||
220 | ioctl(kbfd, VT_WAITACTIVE, curvt); | ||
221 | if (dbgout) fprintf (dbgout, "done!\n"); | ||
222 | } | ||
223 | } | ||
224 | |||
225 | // Set terminal input mode | ||
226 | if (tcgetattr (kbfd, &old_termios) < 0) { | ||
227 | if (dbgout) fprintf (dbgout, "Can't get termios\n"); | ||
228 | return -1; | ||
229 | } | ||
230 | cur_termios = old_termios; | ||
231 | // cur_termios.c_iflag &= ~(ICRNL | INPCK | ISTRIP | IXON); | ||
232 | // cur_termios.c_iflag |= (BRKINT); | ||
233 | // cur_termios.c_lflag &= ~(ICANON | ECHO | ISIG | IEXTEN); | ||
234 | // cur_termios.c_oflag &= ~(OPOST); | ||
235 | // cur_termios.c_oflag |= (ONOCR | ONLRET); | ||
236 | cur_termios.c_lflag &= ~(ICANON | ECHO | ISIG); | ||
237 | cur_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON); | ||
238 | cur_termios.c_cc[VMIN] = 0; | ||
239 | cur_termios.c_cc[VTIME] = 0; | ||
240 | |||
241 | if (tcsetattr (kbfd, TCSAFLUSH, &cur_termios) < 0) { | ||
242 | if (dbgout) fprintf (dbgout, "Can't set termios\n"); | ||
243 | return -1; | ||
244 | } | ||
245 | if (ioctl (kbfd, KDSKBMODE, K_MEDIUMRAW) < 0) { | ||
246 | if (dbgout) fprintf (dbgout, "Can't set medium-raw mode\n"); | ||
247 | return -1; | ||
248 | } | ||
249 | if (ioctl (kbfd, KDSETMODE, KD_GRAPHICS) < 0) { | ||
250 | if (dbgout) fprintf (dbgout, "Can't set graphics\n"); | ||
251 | return -1; | ||
252 | } | ||
253 | } | ||
254 | |||
255 | // Open the framebuffer | ||
256 | if ((fbfd = open ("/dev/fb0", O_RDWR)) < 0) { | ||
257 | if (dbgout) fprintf (dbgout, "Can't open framebuffer\n"); | ||
258 | return -1; | ||
259 | } else { | ||
260 | struct fb_var_screeninfo vinfo; | ||
261 | |||
262 | if (dbgout) fprintf (dbgout, "Generation: %ld\n", generation); | ||
263 | |||
264 | if (generation >= 40000) { | ||
265 | lcd_base = IPOD_NEW_LCD_BASE; | ||
266 | } else { | ||
267 | lcd_base = IPOD_OLD_LCD_BASE; | ||
268 | } | ||
269 | |||
270 | ioctl (fbfd, FBIOGET_VSCREENINFO, &vinfo); | ||
271 | close (fbfd); | ||
272 | |||
273 | if (lcd_base == IPOD_OLD_LCD_BASE) | ||
274 | lcd_rtc = IPOD_OLD_LCD_RTC; | ||
275 | else if (lcd_base == IPOD_NEW_LCD_BASE) | ||
276 | lcd_rtc = IPOD_NEW_LCD_RTC; | ||
277 | else { | ||
278 | SDL_SetError ("Unknown iPod version"); | ||
279 | return -1; | ||
280 | } | ||
281 | |||
282 | lcd_width = vinfo.xres; | ||
283 | lcd_height = vinfo.yres; | ||
284 | |||
285 | if (dbgout) fprintf (dbgout, "LCD is %dx%d\n", lcd_width, lcd_height); | ||
286 | } | ||
287 | |||
288 | fcntl (kbfd, F_SETFL, O_RDWR | O_NONBLOCK); | ||
289 | |||
290 | /* Determine the current screen size */ | ||
291 | this->info.current_w = lcd_width; | ||
292 | this->info.current_h = lcd_height; | ||
293 | |||
294 | if ((generation >= 60000) && (generation < 70000)) { | ||
295 | vformat->BitsPerPixel = 16; | ||
296 | vformat->Rmask = 0xF800; | ||
297 | vformat->Gmask = 0x07E0; | ||
298 | vformat->Bmask = 0x001F; | ||
299 | } else { | ||
300 | vformat->BitsPerPixel = 8; | ||
301 | vformat->Rmask = vformat->Gmask = vformat->Bmask = 0; | ||
302 | } | ||
303 | |||
304 | initd = 1; | ||
305 | if (dbgout) fprintf (dbgout, "Initialized.\n\n"); | ||
306 | } | ||
307 | return 0; | ||
308 | } | ||
309 | |||
310 | static SDL_Rect **iPod_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags) | ||
311 | { | ||
312 | int width, height, fd; | ||
313 | static SDL_Rect r; | ||
314 | static SDL_Rect *rs[2] = { &r, 0 }; | ||
315 | |||
316 | if ((fd = open ("/dev/fb0", O_RDWR)) < 0) { | ||
317 | return 0; | ||
318 | } else { | ||
319 | struct fb_var_screeninfo vinfo; | ||
320 | |||
321 | ioctl (fbfd, FBIOGET_VSCREENINFO, &vinfo); | ||
322 | close (fbfd); | ||
323 | |||
324 | width = vinfo.xres; | ||
325 | height = vinfo.yres; | ||
326 | } | ||
327 | r.x = r.y = 0; | ||
328 | r.w = width; | ||
329 | r.h = height; | ||
330 | return rs; | ||
331 | } | ||
332 | |||
333 | |||
334 | static SDL_Surface *iPod_SetVideoMode (_THIS, SDL_Surface *current, int width, int height, int bpp, | ||
335 | Uint32 flags) | ||
336 | { | ||
337 | Uint32 Rmask, Gmask, Bmask; | ||
338 | if (bpp > 8) { | ||
339 | Rmask = 0xF800; | ||
340 | Gmask = 0x07E0; | ||
341 | Bmask = 0x001F; | ||
342 | } else { | ||
343 | Rmask = Gmask = Bmask = 0; | ||
344 | } | ||
345 | |||
346 | if (this->hidden->buffer) SDL_free (this->hidden->buffer); | ||
347 | this->hidden->buffer = SDL_malloc (width * height * (bpp / 8)); | ||
348 | if (!this->hidden->buffer) { | ||
349 | SDL_SetError ("Couldn't allocate buffer for requested mode"); | ||
350 | return 0; | ||
351 | } | ||
352 | |||
353 | memset (this->hidden->buffer, 0, width * height * (bpp / 8)); | ||
354 | |||
355 | if (!SDL_ReallocFormat (current, bpp, Rmask, Gmask, Bmask, 0)) { | ||
356 | SDL_SetError ("Couldn't allocate new pixel format"); | ||
357 | SDL_free (this->hidden->buffer); | ||
358 | this->hidden->buffer = 0; | ||
359 | return 0; | ||
360 | } | ||
361 | |||
362 | if (bpp <= 8) { | ||
363 | int i, j; | ||
364 | for (i = 0; i < 256; i += 4) { | ||
365 | for (j = 0; j < 4; j++) { | ||
366 | current->format->palette->colors[i+j].r = 85 * j; | ||
367 | current->format->palette->colors[i+j].g = 85 * j; | ||
368 | current->format->palette->colors[i+j].b = 85 * j; | ||
369 | } | ||
370 | } | ||
371 | } | ||
372 | |||
373 | current->flags = flags & SDL_FULLSCREEN; | ||
374 | this->hidden->w = current->w = width; | ||
375 | this->hidden->h = current->h = height; | ||
376 | current->pitch = current->w * (bpp / 8); | ||
377 | current->pixels = this->hidden->buffer; | ||
378 | |||
379 | return current; | ||
380 | } | ||
381 | |||
382 | static int iPod_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color *colors) | ||
383 | { | ||
384 | if (SDL_VideoSurface && SDL_VideoSurface->format && SDL_VideoSurface->format->palette) { | ||
385 | int i, j; | ||
386 | for (i = 0; i < 256; i += 4) { | ||
387 | for (j = 0; j < 4; j++) { | ||
388 | SDL_VideoSurface->format->palette->colors[i+j].r = 85 * j; | ||
389 | SDL_VideoSurface->format->palette->colors[i+j].g = 85 * j; | ||
390 | SDL_VideoSurface->format->palette->colors[i+j].b = 85 * j; | ||
391 | } | ||
392 | } | ||
393 | } | ||
394 | return 0; | ||
395 | } | ||
396 | |||
397 | static void iPod_VideoQuit (_THIS) | ||
398 | { | ||
399 | ioctl (kbfd, KDSETMODE, KD_TEXT); | ||
400 | tcsetattr (kbfd, TCSAFLUSH, &old_termios); | ||
401 | old_kbmode = -1; | ||
402 | |||
403 | if (oldvt > 0) | ||
404 | ioctl (kbfd, VT_ACTIVATE, oldvt); | ||
405 | |||
406 | if (kbfd > 0) | ||
407 | close (kbfd); | ||
408 | |||
409 | if (dbgout) { | ||
410 | fprintf (dbgout, "<-- Ended SDL -->\n"); | ||
411 | fclose (dbgout); | ||
412 | } | ||
413 | |||
414 | kbfd = -1; | ||
415 | } | ||
416 | |||
417 | static char iPod_SC_keymap[] = { | ||
418 | 0, /* 0 - no key */ | ||
419 | '[' - 0x40, /* ESC (Ctrl+[) */ | ||
420 | '1', '2', '3', '4', '5', '6', '7', '8', '9', | ||
421 | '-', '=', | ||
422 | '\b', '\t', /* Backspace, Tab (Ctrl+H,Ctrl+I) */ | ||
423 | 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', | ||
424 | '\n', 0, /* Enter, Left CTRL */ | ||
425 | 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', | ||
426 | 0, '\\', /* left shift, backslash */ | ||
427 | 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', | ||
428 | 0, '*', 0, ' ', 0, /* right shift, KP mul, left alt, space, capslock */ | ||
429 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* F1-10 */ | ||
430 | 0, 0, /* numlock, scrollock */ | ||
431 | '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', /* numeric keypad */ | ||
432 | 0, 0, /* padding */ | ||
433 | 0, 0, 0, /* "less" (?), F11, F12 */ | ||
434 | 0, 0, 0, 0, 0, 0, 0, /* padding */ | ||
435 | '\n', 0, '/', 0, 0, /* KP enter, Rctrl, Ctrl, KP div, PrtSc, RAlt */ | ||
436 | 0, 0, 0, 0, 0, 0, 0, 0, 0, /* Break, Home, Up, PgUp, Left, Right, End, Down, PgDn */ | ||
437 | 0, 0, /* Ins, Del */ | ||
438 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* padding */ | ||
439 | 0, 0, /* RWin, LWin */ | ||
440 | 0 /* no key */ | ||
441 | }; | ||
442 | |||
443 | |||
444 | static void iPod_keyboard() | ||
445 | { | ||
446 | unsigned char keybuf[128]; | ||
447 | int i, nread; | ||
448 | SDL_keysym keysym; | ||
449 | SDL_Event ev; | ||
450 | |||
451 | keysym.mod = 0; | ||
452 | keysym.scancode = 0xff; | ||
453 | memset (&ev, 0, sizeof(SDL_Event)); | ||
454 | |||
455 | nread = read (kbfd, keybuf, 128); | ||
456 | for (i = 0; i < nread; i++) { | ||
457 | char ascii = iPod_SC_keymap[keybuf[i] & 0x7f]; | ||
458 | |||
459 | if (dbgout) fprintf (dbgout, "Key! %02x is %c %s", keybuf[i], ascii, (keybuf[i] & 0x80)? "up" : "down"); | ||
460 | |||
461 | keysym.sym = keysym.unicode = ascii; | ||
462 | ev.type = (keybuf[i] & 0x80)? SDL_KEYUP : SDL_KEYDOWN; | ||
463 | ev.key.state = 0; | ||
464 | ev.key.keysym = keysym; | ||
465 | SDL_PushEvent (&ev); | ||
466 | } | ||
467 | } | ||
468 | |||
469 | static void iPod_PumpEvents (_THIS) | ||
470 | { | ||
471 | fd_set fdset; | ||
472 | int max_fd = 0; | ||
473 | static struct timeval zero; | ||
474 | int posted; | ||
475 | |||
476 | do { | ||
477 | posted = 0; | ||
478 | |||
479 | FD_ZERO (&fdset); | ||
480 | if (kbfd >= 0) { | ||
481 | FD_SET (kbfd, &fdset); | ||
482 | max_fd = kbfd; | ||
483 | } | ||
484 | if (dbgout) fprintf (dbgout, "Selecting"); | ||
485 | if (select (max_fd + 1, &fdset, 0, 0, &zero) > 0) { | ||
486 | if (dbgout) fprintf (dbgout, " -> match!\n"); | ||
487 | iPod_keyboard(); | ||
488 | posted++; | ||
489 | } | ||
490 | if (dbgout) fprintf (dbgout, "\n"); | ||
491 | } while (posted); | ||
492 | } | ||
493 | |||
494 | // enough space for 160x128x2 | ||
495 | static char ipod_scr[160 * (128/4)]; | ||
496 | |||
497 | #define outl(datum,addr) (*(volatile unsigned long *)(addr) = (datum)) | ||
498 | #define inl(addr) (*(volatile unsigned long *)(addr)) | ||
499 | |||
500 | /*** The following LCD code is taken from Linux kernel uclinux-2.4.24-uc0-ipod2, | ||
501 | file arch/armnommu/mach-ipod/fb.c. A few modifications have been made. ***/ | ||
502 | |||
503 | /* get current usec counter */ | ||
504 | static int M_timer_get_current(void) | ||
505 | { | ||
506 | return inl(lcd_rtc); | ||
507 | } | ||
508 | |||
509 | /* check if number of useconds has past */ | ||
510 | static int M_timer_check(int clock_start, int usecs) | ||
511 | { | ||
512 | unsigned long clock; | ||
513 | clock = inl(lcd_rtc); | ||
514 | |||
515 | if ( (clock - clock_start) >= usecs ) { | ||
516 | return 1; | ||
517 | } else { | ||
518 | return 0; | ||
519 | } | ||
520 | } | ||
521 | |||
522 | /* wait for LCD with timeout */ | ||
523 | static void M_lcd_wait_write(void) | ||
524 | { | ||
525 | if ( (inl(lcd_base) & 0x8000) != 0 ) { | ||
526 | int start = M_timer_get_current(); | ||
527 | |||
528 | do { | ||
529 | if ( (inl(lcd_base) & (unsigned int)0x8000) == 0 ) | ||
530 | break; | ||
531 | } while ( M_timer_check(start, 1000) == 0 ); | ||
532 | } | ||
533 | } | ||
534 | |||
535 | |||
536 | /* send LCD data */ | ||
537 | static void M_lcd_send_data(int data_lo, int data_hi) | ||
538 | { | ||
539 | M_lcd_wait_write(); | ||
540 | |||
541 | outl(data_lo, lcd_base + LCD_DATA); | ||
542 | |||
543 | M_lcd_wait_write(); | ||
544 | |||
545 | outl(data_hi, lcd_base + LCD_DATA); | ||
546 | |||
547 | } | ||
548 | |||
549 | /* send LCD command */ | ||
550 | static void | ||
551 | M_lcd_prepare_cmd(int cmd) | ||
552 | { | ||
553 | M_lcd_wait_write(); | ||
554 | |||
555 | outl(0x0, lcd_base + LCD_CMD); | ||
556 | |||
557 | M_lcd_wait_write(); | ||
558 | |||
559 | outl(cmd, lcd_base + LCD_CMD); | ||
560 | |||
561 | } | ||
562 | |||
563 | /* send LCD command and data */ | ||
564 | static void M_lcd_cmd_and_data(int cmd, int data_lo, int data_hi) | ||
565 | { | ||
566 | M_lcd_prepare_cmd(cmd); | ||
567 | |||
568 | M_lcd_send_data(data_lo, data_hi); | ||
569 | } | ||
570 | |||
571 | // Copied from uW | ||
572 | static void M_update_display(int sx, int sy, int mx, int my) | ||
573 | { | ||
574 | int y; | ||
575 | unsigned short cursor_pos; | ||
576 | |||
577 | sx >>= 3; | ||
578 | mx >>= 3; | ||
579 | |||
580 | cursor_pos = sx + (sy << 5); | ||
581 | |||
582 | for ( y = sy; y <= my; y++ ) { | ||
583 | unsigned char *img_data; | ||
584 | int x; | ||
585 | |||
586 | /* move the cursor */ | ||
587 | M_lcd_cmd_and_data(0x11, cursor_pos >> 8, cursor_pos & 0xff); | ||
588 | |||
589 | /* setup for printing */ | ||
590 | M_lcd_prepare_cmd(0x12); | ||
591 | |||
592 | img_data = ipod_scr + (sx << 1) + (y * (lcd_width/4)); | ||
593 | |||
594 | /* loops up to 160 times */ | ||
595 | for ( x = sx; x <= mx; x++ ) { | ||
596 | /* display eight pixels */ | ||
597 | M_lcd_send_data(*(img_data + 1), *img_data); | ||
598 | |||
599 | img_data += 2; | ||
600 | } | ||
601 | |||
602 | /* update cursor pos counter */ | ||
603 | cursor_pos += 0x20; | ||
604 | } | ||
605 | } | ||
606 | |||
607 | /* get current usec counter */ | ||
608 | static int C_timer_get_current(void) | ||
609 | { | ||
610 | return inl(0x60005010); | ||
611 | } | ||
612 | |||
613 | /* check if number of useconds has past */ | ||
614 | static int C_timer_check(int clock_start, int usecs) | ||
615 | { | ||
616 | unsigned long clock; | ||
617 | clock = inl(0x60005010); | ||
618 | |||
619 | if ( (clock - clock_start) >= usecs ) { | ||
620 | return 1; | ||
621 | } else { | ||
622 | return 0; | ||
623 | } | ||
624 | } | ||
625 | |||
626 | /* wait for LCD with timeout */ | ||
627 | static void C_lcd_wait_write(void) | ||
628 | { | ||
629 | if ((inl(0x70008A0C) & 0x80000000) != 0) { | ||
630 | int start = C_timer_get_current(); | ||
631 | |||
632 | do { | ||
633 | if ((inl(0x70008A0C) & 0x80000000) == 0) | ||
634 | break; | ||
635 | } while (C_timer_check(start, 1000) == 0); | ||
636 | } | ||
637 | } | ||
638 | static void C_lcd_cmd_data(int cmd, int data) | ||
639 | { | ||
640 | C_lcd_wait_write(); | ||
641 | outl(cmd | 0x80000000, 0x70008A0C); | ||
642 | |||
643 | C_lcd_wait_write(); | ||
644 | outl(data | 0x80000000, 0x70008A0C); | ||
645 | } | ||
646 | |||
647 | static void C_update_display(int sx, int sy, int mx, int my) | ||
648 | { | ||
649 | int height = (my - sy) + 1; | ||
650 | int width = (mx - sx) + 1; | ||
651 | |||
652 | char *addr = SDL_VideoSurface->pixels; | ||
653 | |||
654 | if (width & 1) width++; | ||
655 | |||
656 | /* start X and Y */ | ||
657 | C_lcd_cmd_data(0x12, (sy & 0xff)); | ||
658 | C_lcd_cmd_data(0x13, (((SDL_VideoSurface->w - 1) - sx) & 0xff)); | ||
659 | |||
660 | /* max X and Y */ | ||
661 | C_lcd_cmd_data(0x15, (((sy + height) - 1) & 0xff)); | ||
662 | C_lcd_cmd_data(0x16, (((((SDL_VideoSurface->w - 1) - sx) - width) + 1) & 0xff)); | ||
663 | |||
664 | addr += sx + sy * SDL_VideoSurface->pitch; | ||
665 | |||
666 | while (height > 0) { | ||
667 | int h, x, y, pixels_to_write; | ||
668 | |||
669 | pixels_to_write = (width * height) * 2; | ||
670 | |||
671 | /* calculate how much we can do in one go */ | ||
672 | h = height; | ||
673 | if (pixels_to_write > 64000) { | ||
674 | h = (64000/2) / width; | ||
675 | pixels_to_write = (width * h) * 2; | ||
676 | } | ||
677 | |||
678 | outl(0x10000080, 0x70008A20); | ||
679 | outl((pixels_to_write - 1) | 0xC0010000, 0x70008A24); | ||
680 | outl(0x34000000, 0x70008A20); | ||
681 | |||
682 | /* for each row */ | ||
683 | for (x = 0; x < h; x++) | ||
684 | { | ||
685 | /* for each column */ | ||
686 | for (y = 0; y < width; y += 2) { | ||
687 | unsigned two_pixels; | ||
688 | |||
689 | two_pixels = addr[0] | (addr[1] << 16); | ||
690 | addr += 2; | ||
691 | |||
692 | while ((inl(0x70008A20) & 0x1000000) == 0); | ||
693 | |||
694 | /* output 2 pixels */ | ||
695 | outl(two_pixels, 0x70008B00); | ||
696 | } | ||
697 | |||
698 | addr += SDL_VideoSurface->w - width; | ||
699 | } | ||
700 | |||
701 | while ((inl(0x70008A20) & 0x4000000) == 0); | ||
702 | |||
703 | outl(0x0, 0x70008A24); | ||
704 | |||
705 | height = height - h; | ||
706 | } | ||
707 | } | ||
708 | |||
709 | // Should work with photo. However, I don't have one, so I'm not sure. | ||
710 | static void iPod_UpdateRects (_THIS, int nrects, SDL_Rect *rects) | ||
711 | { | ||
712 | if (SDL_VideoSurface->format->BitsPerPixel == 16) { | ||
713 | C_update_display (0, 0, lcd_width, lcd_height); | ||
714 | } else { | ||
715 | int i, y, x; | ||
716 | for (i = 0; i < nrects; i++) { | ||
717 | SDL_Rect *r = rects + i; | ||
718 | if (!r) { | ||
719 | continue; | ||
720 | } | ||
721 | |||
722 | for (y = r->y; (y < r->y + r->h) && y < lcd_height; y++) { | ||
723 | for (x = r->x; (x < r->x + r->w) && x < lcd_width; x++) { | ||
724 | ipod_scr[y*(lcd_width/4) + x/4] &= ~(3 << (2 * (x%4))); | ||
725 | ipod_scr[y*(lcd_width/4) + x/4] |= | ||
726 | (((Uint8*)(SDL_VideoSurface->pixels))[ y*SDL_VideoSurface->pitch + x ] & 3) << (2 * (x%4)); | ||
727 | } | ||
728 | } | ||
729 | } | ||
730 | |||
731 | M_update_display (0, 0, lcd_width, lcd_height); | ||
732 | } | ||
733 | } | ||