1 /*
2 * PicoDrive
3 * (C) notaz, 2010,2011
4 *
5 * This work is licensed under the terms of MAME license.
6 * See COPYING file in the top-level directory.
7 */
8
9 #include <stdio.h>
10 #include <unistd.h>
11 #include <sys/types.h>
12 #include <sys/stat.h>
13 #include <fcntl.h>
14 #include <sys/ioctl.h>
15 #include <unistd.h>
16 #include <linux/fb.h>
17 #include <linux/omapfb.h>
18 #include <linux/input.h>
19
20 #include "../common/emu.h"
21 #include "../common/arm_utils.h"
22 #include "../common/input_pico.h"
23 #include "../common/version.h"
24 #include "../libpicofe/input.h"
25 #include "../libpicofe/menu.h"
26 #include "../libpicofe/plat.h"
27 #include "../libpicofe/linux/in_evdev.h"
28 #include "../libpicofe/linux/sndout_oss.h"
29 #include "../libpicofe/linux/fbdev.h"
30 #include "../libpicofe/linux/xenv.h"
31 #include "plat.h"
32 #include "asm_utils.h"
33
34 #include <pico/pico_int.h>
35
36 #define LAYER_MEM_SIZE (320*240*2 * 4)
37
38 static struct vout_fbdev *main_fb, *layer_fb;
39 // g_layer_* - in use, g_layer_c* - configured custom
40 int g_layer_cx, g_layer_cy, g_layer_cw, g_layer_ch;
41 static int g_layer_x, g_layer_y;
42 static int g_layer_w = 320, g_layer_h = 240;
43 static int g_osd_fps_x, g_osd_y, doing_bg_frame;
44
45 static unsigned char __attribute__((aligned(4))) fb_copy[320 * 240 * 2];
46 static void *temp_frame;
47 const char *renderer_names[] = { NULL };
48 const char *renderer_names32x[] = { NULL };
49
50 static const char * const pandora_gpio_keys[KEY_MAX + 1] = {
51 [0 ... KEY_MAX] = NULL,
52 [KEY_UP] = "Up",
53 [KEY_LEFT] = "Left",
54 [KEY_RIGHT] = "Right",
55 [KEY_DOWN] = "Down",
56 [KEY_HOME] = "A",
57 [KEY_PAGEDOWN] = "X",
58 [KEY_END] = "B",
59 [KEY_PAGEUP] = "Y",
60 [KEY_RIGHTSHIFT]= "L",
61 [KEY_RIGHTCTRL] = "R",
62 [KEY_LEFTALT] = "Start",
63 [KEY_LEFTCTRL] = "Select",
64 [KEY_MENU] = "Pandora",
65 };
66
67 static struct in_default_bind in_evdev_defbinds[] =
68 {
69 { KEY_UP, IN_BINDTYPE_PLAYER12, GBTN_UP },
70 { KEY_DOWN, IN_BINDTYPE_PLAYER12, GBTN_DOWN },
71 { KEY_LEFT, IN_BINDTYPE_PLAYER12, GBTN_LEFT },
72 { KEY_RIGHT, IN_BINDTYPE_PLAYER12, GBTN_RIGHT },
73 { KEY_A, IN_BINDTYPE_PLAYER12, GBTN_A },
74 { KEY_S, IN_BINDTYPE_PLAYER12, GBTN_B },
75 { KEY_D, IN_BINDTYPE_PLAYER12, GBTN_C },
76 { KEY_ENTER, IN_BINDTYPE_PLAYER12, GBTN_START },
77 { KEY_R, IN_BINDTYPE_EMU, PEVB_RESET },
78 { KEY_F, IN_BINDTYPE_EMU, PEVB_FF },
79 { KEY_BACKSPACE,IN_BINDTYPE_EMU, PEVB_FF },
80 { KEY_BACKSLASH,IN_BINDTYPE_EMU, PEVB_MENU },
81 { KEY_SPACE, IN_BINDTYPE_EMU, PEVB_MENU },
82 { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },
83 { KEY_HOME, IN_BINDTYPE_PLAYER12, GBTN_A },
84 { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, GBTN_B },
85 { KEY_END, IN_BINDTYPE_PLAYER12, GBTN_C },
86 { KEY_LEFTALT, IN_BINDTYPE_PLAYER12, GBTN_START },
87 { KEY_1, IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
88 { KEY_2, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
89 { KEY_3, IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },
90 { KEY_4, IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },
91 { KEY_5, IN_BINDTYPE_EMU, PEVB_PICO_PPREV },
92 { KEY_6, IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },
93 { KEY_7, IN_BINDTYPE_EMU, PEVB_PICO_SWINP },
94 { 0, 0, 0 }
95 };
96
97 static const struct menu_keymap key_pbtn_map[] =
98 {
99 { KEY_UP, PBTN_UP },
100 { KEY_DOWN, PBTN_DOWN },
101 { KEY_LEFT, PBTN_LEFT },
102 { KEY_RIGHT, PBTN_RIGHT },
103 /* Pandora */
104 { KEY_END, PBTN_MOK },
105 { KEY_PAGEDOWN, PBTN_MBACK },
106 { KEY_HOME, PBTN_MA2 },
107 { KEY_PAGEUP, PBTN_MA3 },
108 { KEY_LEFTCTRL, PBTN_MENU },
109 { KEY_RIGHTSHIFT, PBTN_L },
110 { KEY_RIGHTCTRL, PBTN_R },
111 /* "normal" keyboards */
112 { KEY_ENTER, PBTN_MOK },
113 { KEY_ESC, PBTN_MBACK },
114 { KEY_SEMICOLON, PBTN_MA2 },
115 { KEY_APOSTROPHE, PBTN_MA3 },
116 { KEY_BACKSLASH, PBTN_MENU },
117 { KEY_LEFTBRACE, PBTN_L },
118 { KEY_RIGHTBRACE, PBTN_R },
119 };
120
121 static const struct in_pdata pandora_evdev_pdata = {
122 .defbinds = in_evdev_defbinds,
123 .key_map = key_pbtn_map,
124 .kmap_size = sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]),
125 };
126
pemu_prep_defconfig(void)127 void pemu_prep_defconfig(void)
128 {
129 defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;
130 defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX;
131 defaultConfig.scaling = SCALE_2x2_3x2;
132 }
133
pemu_validate_config(void)134 void pemu_validate_config(void)
135 {
136 currentConfig.CPUclock = plat_target_cpu_clock_get();
137 }
138
draw_cd_leds(void)139 static void draw_cd_leds(void)
140 {
141 int old_reg;
142 old_reg = Pico_mcd->s68k_regs[0];
143
144 if (0) {
145 // 8-bit modes
146 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
147 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
148 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =
149 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =
150 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;
151 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =
152 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =
153 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;
154 } else {
155 // 16-bit modes
156 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);
157 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
158 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
159 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
160 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
161 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
162 }
163 }
164
pemu_finalize_frame(const char * fps,const char * notice)165 void pemu_finalize_frame(const char *fps, const char *notice)
166 {
167 if (notice && notice[0])
168 emu_osd_text16(2, g_osd_y, notice);
169 if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS))
170 emu_osd_text16(g_osd_fps_x, g_osd_y, fps);
171 if ((PicoIn.AHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))
172 draw_cd_leds();
173 }
174
plat_video_flip(void)175 void plat_video_flip(void)
176 {
177 g_screen_ptr = vout_fbdev_flip(layer_fb);
178 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
179
180 // XXX: drain OS event queue here, maybe we'll actually use it someday..
181 xenv_update(NULL, NULL, NULL, NULL);
182 }
183
plat_video_toggle_renderer(int change,int is_menu)184 void plat_video_toggle_renderer(int change, int is_menu)
185 {
186 }
187
plat_video_menu_enter(int is_rom_loaded)188 void plat_video_menu_enter(int is_rom_loaded)
189 {
190 }
191
plat_video_menu_begin(void)192 void plat_video_menu_begin(void)
193 {
194 }
195
plat_video_menu_end(void)196 void plat_video_menu_end(void)
197 {
198 g_menuscreen_ptr = vout_fbdev_flip(main_fb);
199 }
200
plat_video_menu_leave(void)201 void plat_video_menu_leave(void)
202 {
203 }
204
plat_video_wait_vsync(void)205 void plat_video_wait_vsync(void)
206 {
207 vout_fbdev_wait_vsync(main_fb);
208 }
209
plat_status_msg_clear(void)210 void plat_status_msg_clear(void)
211 {
212 vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);
213 }
214
plat_status_msg_busy_next(const char * msg)215 void plat_status_msg_busy_next(const char *msg)
216 {
217 plat_status_msg_clear();
218 pemu_finalize_frame("", msg);
219 plat_video_flip();
220 emu_status_msg("");
221 reset_timing = 1;
222 }
223
plat_status_msg_busy_first(const char * msg)224 void plat_status_msg_busy_first(const char *msg)
225 {
226 plat_status_msg_busy_next(msg);
227 }
228
plat_update_volume(int has_changed,int is_up)229 void plat_update_volume(int has_changed, int is_up)
230 {
231 }
232
pemu_forced_frame(int no_scale,int do_emu)233 void pemu_forced_frame(int no_scale, int do_emu)
234 {
235 doing_bg_frame = 1;
236 emu_cmn_forced_frame(no_scale, do_emu);
237 doing_bg_frame = 0;
238
239 // making a copy because enabling the layer clears it's mem
240 memcpy((void *)fb_copy, g_screen_ptr, sizeof(fb_copy));
241 g_menubg_src_ptr = fb_copy;
242 }
243
pemu_sound_start(void)244 void pemu_sound_start(void)
245 {
246 emu_sound_start();
247 }
248
plat_debug_cat(char * str)249 void plat_debug_cat(char *str)
250 {
251 }
252
pnd_setup_layer_(int fd,int enabled,int x,int y,int w,int h)253 static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)
254 {
255 struct omapfb_plane_info pi;
256 struct omapfb_mem_info mi;
257 int is_enabled;
258 int retval = 0;
259 int ret;
260
261 ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
262 if (ret != 0) {
263 perror("QUERY_PLANE");
264 return -1;
265 }
266
267 ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
268 if (ret != 0) {
269 perror("QUERY_MEM");
270 return -1;
271 }
272
273 /* must disable when changing stuff */
274 is_enabled = pi.enabled;
275 if (is_enabled) {
276 pi.enabled = 0;
277 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
278 if (ret != 0)
279 perror("SETUP_PLANE");
280 else
281 is_enabled = 0;
282 }
283
284 if (mi.size < LAYER_MEM_SIZE) {
285 unsigned int size_old = mi.size;
286
287 mi.size = LAYER_MEM_SIZE;
288 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
289 if (ret != 0) {
290 perror("SETUP_MEM");
291 fprintf(stderr, "(requested %u, had %u)\n",
292 mi.size, size_old);
293 return -1;
294 }
295 }
296
297 pi.pos_x = x;
298 pi.pos_y = y;
299 pi.out_width = w;
300 pi.out_height = h;
301 pi.enabled = enabled;
302
303 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
304 if (ret == 0) {
305 is_enabled = pi.enabled;
306 }
307 else {
308 perror("SETUP_PLANE");
309 retval = -1;
310 }
311
312 plat_target_switch_layer(1, is_enabled);
313
314 return retval;
315 }
316
pnd_setup_layer(int enabled,int x,int y,int w,int h)317 int pnd_setup_layer(int enabled, int x, int y, int w, int h)
318 {
319 return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);
320 }
321
pnd_restore_layer_data(void)322 void pnd_restore_layer_data(void)
323 {
324 short *t = (short *)fb_copy + 320*240 / 2 + 160;
325
326 // right now this is used by menu, which wants to preview something
327 // so try to get something on the layer.
328 if ((t[0] | t[5] | t[13]) == 0)
329 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);
330
331 memcpy(g_screen_ptr, (void *)fb_copy, 320*240*2);
332 plat_video_flip();
333 }
334
emu_video_mode_change(int start_line,int line_count,int is_32cols)335 void emu_video_mode_change(int start_line, int line_count, int is_32cols)
336 {
337 int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;
338
339 if (doing_bg_frame)
340 return;
341
342 if (is_32cols) {
343 fb_w = 256;
344 fb_left = fb_right = 32;
345 }
346
347 switch (currentConfig.scaling) {
348 case SCALE_1x1:
349 g_layer_w = fb_w;
350 g_layer_h = fb_h;
351 break;
352 case SCALE_2x2_3x2:
353 g_layer_w = fb_w * (is_32cols ? 3 : 2);
354 g_layer_h = fb_h * 2;
355 break;
356 case SCALE_2x2_2x2:
357 g_layer_w = fb_w * 2;
358 g_layer_h = fb_h * 2;
359 break;
360 case SCALE_FULLSCREEN:
361 g_layer_w = 800;
362 g_layer_h = 480;
363 break;
364 case SCALE_CUSTOM:
365 g_layer_x = g_layer_cx;
366 g_layer_y = g_layer_cy;
367 g_layer_w = g_layer_cw;
368 g_layer_h = g_layer_ch;
369 break;
370 }
371
372 if (currentConfig.scaling != SCALE_CUSTOM) {
373 // center the layer
374 g_layer_x = 800 / 2 - g_layer_w / 2;
375 g_layer_y = 480 / 2 - g_layer_h / 2;
376 }
377
378 switch (currentConfig.scaling) {
379 case SCALE_FULLSCREEN:
380 case SCALE_CUSTOM:
381 fb_top = start_line;
382 fb_h = line_count;
383 break;
384 }
385 g_osd_fps_x = is_32cols ? 232 : 264;
386 g_osd_y = fb_top + fb_h - 8;
387
388 pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
389 vout_fbdev_clear(layer_fb);
390 vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 4);
391 plat_video_flip();
392
393 PicoDrawSetOutFormat(PDF_RGB555, 0);
394 }
395
plat_video_loop_prepare(void)396 void plat_video_loop_prepare(void)
397 {
398 // make sure there is no junk left behind the layer
399 memset(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2);
400 g_menuscreen_ptr = vout_fbdev_flip(main_fb);
401
402 // emu_video_mode_change will call pnd_setup_layer()
403 }
404
pemu_loop_prep(void)405 void pemu_loop_prep(void)
406 {
407 // dirty buffers better go now than during gameplay
408 fflush(stdout);
409 fflush(stderr);
410 sync();
411 sleep(0);
412 }
413
pemu_loop_end(void)414 void pemu_loop_end(void)
415 {
416 /* do one more frame for menu bg */
417 pemu_forced_frame(0, 1);
418
419 pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
420 }
421
plat_wait_till_us(unsigned int us_to)422 void plat_wait_till_us(unsigned int us_to)
423 {
424 unsigned int now;
425 signed int diff;
426
427 now = plat_get_ticks_us();
428
429 // XXX: need to check NOHZ
430 diff = (signed int)(us_to - now);
431 if (diff > 10000) {
432 //printf("sleep %d\n", us_to - now);
433 usleep(diff * 15 / 16);
434 now = plat_get_ticks_us();
435 //printf(" wake %d\n", (signed)(us_to - now));
436 }
437 /*
438 while ((signed int)(us_to - now) > 512) {
439 spend_cycles(1024);
440 now = plat_get_ticks_us();
441 }
442 */
443 }
444
plat_mem_get_for_drc(size_t size)445 void *plat_mem_get_for_drc(size_t size)
446 {
447 return NULL;
448 }
449
plat_early_init(void)450 void plat_early_init(void)
451 {
452 }
453
plat_init(void)454 void plat_init(void)
455 {
456 const char *main_fb_name, *layer_fb_name;
457 int fd, ret, w, h;
458
459 main_fb_name = getenv("FBDEV_MAIN");
460 if (main_fb_name == NULL)
461 main_fb_name = "/dev/fb0";
462
463 layer_fb_name = getenv("FBDEV_LAYER");
464 if (layer_fb_name == NULL)
465 layer_fb_name = "/dev/fb1";
466
467 // must set the layer up first to be able to use it
468 fd = open(layer_fb_name, O_RDWR);
469 if (fd == -1) {
470 fprintf(stderr, "%s: ", layer_fb_name);
471 perror("open");
472 exit(1);
473 }
474
475 ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
476 close(fd);
477 if (ret != 0) {
478 fprintf(stderr, "failed to set up layer, exiting.\n");
479 exit(1);
480 }
481
482 xenv_init(NULL, "PicoDrive " VERSION);
483
484 w = h = 0;
485 main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);
486 if (main_fb == NULL) {
487 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);
488 exit(1);
489 }
490
491 g_menuscreen_w = g_menuscreen_pp = w;
492 g_menuscreen_h = h;
493 g_menuscreen_ptr = vout_fbdev_flip(main_fb);
494
495 w = 320; h = 240;
496 layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 4);
497 if (layer_fb == NULL) {
498 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);
499 goto fail0;
500 }
501
502 if (w != g_screen_width || h != g_screen_height) {
503 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);
504 goto fail1;
505 }
506 g_screen_ptr = vout_fbdev_flip(layer_fb);
507
508 temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);
509 if (temp_frame == NULL) {
510 fprintf(stderr, "OOM\n");
511 goto fail1;
512 }
513 g_menubg_ptr = temp_frame;
514 g_menubg_src_ptr = temp_frame;
515
516 pnd_menu_init();
517
518 // default ROM path
519 strcpy(rom_fname_loaded, "/media");
520
521 in_evdev_init(&pandora_evdev_pdata);
522 in_probe();
523 plat_target_setup_input();
524
525 sndout_oss_frag_frames = 2;
526
527 return;
528
529 fail1:
530 vout_fbdev_finish(layer_fb);
531 fail0:
532 vout_fbdev_finish(main_fb);
533 exit(1);
534 }
535
plat_finish(void)536 void plat_finish(void)
537 {
538 vout_fbdev_finish(main_fb);
539 xenv_finish();
540
541 printf("all done\n");
542 }
543
544