2 Parts used from cpuctrl, Copyright (C) 2005 Hermes/PS2Reality
3 Portions Copyright (C) 2009 notaz
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program 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
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "../common.h"
25 #include <sys/ioctl.h>
26 #include <sys/soundcard.h>
27 #include <sys/types.h>
31 #include "pollux_dpc_set.h"
33 static u32 gpsp_gp2x_dev_audio;
34 static u32 gpsp_gp2x_dev;
35 static u32 gpsp_gp2x_gpiodev;
37 static u32 gp2x_audio_volume = 74/2;
39 static volatile u16 *gpsp_gp2x_memregs;
40 static volatile u32 *gpsp_gp2x_memregl;
42 u32 button_plat_mask_to_config[PLAT_BUTTON_COUNT] =
62 u32 gamepad_config_map[PLAT_BUTTON_COUNT] =
65 BUTTON_ID_LEFT, // Left
66 BUTTON_ID_DOWN, // Down
67 BUTTON_ID_RIGHT, // Right
68 BUTTON_ID_START, // Start
69 BUTTON_ID_SELECT, // Select
70 BUTTON_ID_L, // Ltrigger
71 BUTTON_ID_R, // Rtrigger
76 BUTTON_ID_VOLDOWN, // Vol down
77 BUTTON_ID_VOLUP, // Vol up
78 BUTTON_ID_FPS, // Push
79 BUTTON_ID_MENU // Vol middle
84 void *gpsp_gp2x_screen;
85 #define fb_buf_count 4
86 static u32 fb_paddr[fb_buf_count];
87 static void *fb_vaddr[fb_buf_count];
88 static u32 fb_work_buf;
89 static int fb_buf_use;
92 static void fb_video_init()
94 struct fb_fix_screeninfo fbfix;
97 fbdev = open("/dev/fb0", O_RDWR);
99 perror("can't open fbdev");
103 ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix);
106 perror("ioctl(fbdev) failed");
110 printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start);
111 fb_paddr[0] = fbfix.smem_start;
113 fb_vaddr[0] = mmap(0, 320*240*2*fb_buf_count, PROT_READ|PROT_WRITE,
114 MAP_SHARED, gpsp_gp2x_dev, fb_paddr[0]);
115 if (fb_vaddr[0] == MAP_FAILED)
117 perror("mmap(fb_vaddr) failed");
120 memset(fb_vaddr[0], 0, 320*240*2*fb_buf_count);
122 printf(" %p -> %08x\n", fb_vaddr[0], fb_paddr[0]);
123 for (i = 1; i < fb_buf_count; i++)
125 fb_paddr[i] = fb_paddr[i-1] + 320*240*2;
126 fb_vaddr[i] = (char *)fb_vaddr[i-1] + 320*240*2;
127 printf(" %p -> %08x\n", fb_vaddr[i], fb_paddr[i]);
130 fb_buf_use = fb_buf_count;
133 warm_change_cb_upper(WCB_C_BIT|WCB_B_BIT, 1);
136 void pollux_video_flip()
138 gpsp_gp2x_memregl[0x406C>>2] = fb_paddr[fb_work_buf];
139 gpsp_gp2x_memregl[0x4058>>2] |= 0x10;
141 if (fb_work_buf >= fb_buf_use)
143 gpsp_gp2x_screen = fb_vaddr[fb_work_buf];
146 void fb_use_buffers(int count)
150 else if (count > fb_buf_count)
151 count = fb_buf_count;
153 memset(fb_vaddr[0], 0, 320*240*2*count);
156 void wiz_lcd_set_portrait(int y)
158 static int old_y = -1;
159 int cmd[2] = { 0, 0 };
164 ioctl(fbdev, _IOW('D', 90, int[2]), cmd);
165 gpsp_gp2x_memregl[0x4004>>2] = y ? 0x013f00ef : 0x00ef013f;
166 gpsp_gp2x_memregl[0x4000>>2] |= 1 << 3;
169 /* the above ioctl resets LCD timings, so set them here */
170 pollux_dpc_set(gpsp_gp2x_memregs, getenv("pollux_dpc_set"));
173 static void fb_video_exit()
175 /* switch to default fb mem, turn portrait off */
176 gpsp_gp2x_memregl[0x406C>>2] = fb_paddr[0];
177 gpsp_gp2x_memregl[0x4058>>2] |= 0x10;
178 wiz_lcd_set_portrait(0);
182 static int wiz_gamepak_fd = -1;
183 static u32 wiz_gamepak_size;
185 static void wiz_gamepak_cleanup()
187 if (wiz_gamepak_size)
188 munmap(gamepak_rom, wiz_gamepak_size);
189 if (wiz_gamepak_fd >= 0)
190 close(wiz_gamepak_fd);
192 wiz_gamepak_size = 0;
196 u32 wiz_load_gamepak(char *name)
198 char *dot_position = strrchr(name, '.');
201 if (!strcasecmp(dot_position, ".zip"))
203 if (wiz_gamepak_fd >= 0)
205 wiz_gamepak_cleanup();
206 printf("switching to ROM malloc\n");
207 init_gamepak_buffer();
209 return load_file_zip(name);
212 if (wiz_gamepak_fd < 0)
214 extern void *gamepak_memory_map;
216 free(gamepak_memory_map);
217 gamepak_memory_map = NULL;
218 printf("switching to ROM mmap\n");
221 wiz_gamepak_cleanup();
223 wiz_gamepak_fd = open(name, O_RDONLY|O_NOATIME, S_IRUSR);
224 if (wiz_gamepak_fd < 0)
226 perror("wiz_load_gamepak: open failed");
230 ret = lseek(wiz_gamepak_fd, 0, SEEK_END);
231 wiz_gamepak_size = gamepak_ram_buffer_size = ret;
233 gamepak_rom = mmap(0, ret, PROT_READ, MAP_SHARED, wiz_gamepak_fd, 0);
234 if (gamepak_rom == MAP_FAILED)
236 perror("wiz_load_gamepak: mmap failed");
245 static int get_romdir(char *buff, size_t size)
251 f = fopen("romdir.txt", "r");
255 s = fgets(buff, size, f);
259 while (r > 0 && isspace(buff[r-1]))
267 void gpsp_plat_init(void)
271 gpsp_gp2x_dev = open("/dev/mem", O_RDWR);
272 gpsp_gp2x_dev_audio = open("/dev/mixer", O_RDWR);
273 gpsp_gp2x_memregl = (u32 *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED,
274 gpsp_gp2x_dev, 0xc0000000);
275 gpsp_gp2x_memregs = (u16 *)gpsp_gp2x_memregl;
278 gpsp_gp2x_gpiodev = open("/dev/GPIO", O_RDONLY);
282 if (get_romdir(buff, sizeof(buff)) > 0)
285 gp2x_sound_volume(1);
288 void gpsp_plat_quit(void)
290 char buff1[256], buff2[256];
292 getcwd(buff1, sizeof(buff1));
294 if (get_romdir(buff2, sizeof(buff2)) >= 0 &&
295 strcmp(buff1, buff2) != 0)
297 FILE *f = fopen("romdir.txt", "w");
300 printf("writing romdir: %s\n", buff1);
301 fprintf(f, "%s", buff1);
308 close(gpsp_gp2x_gpiodev);
310 wiz_gamepak_cleanup();
312 munmap((void *)gpsp_gp2x_memregl, 0x10000);
313 close(gpsp_gp2x_dev_audio);
314 close(gpsp_gp2x_dev);
321 void gp2x_sound_volume(u32 volume_up)
324 if((volume_up == 0) && (gp2x_audio_volume > 0))
327 if((volume_up != 0) && (gp2x_audio_volume < 100))
330 volume = (gp2x_audio_volume * 0x50) / 100;
331 volume = (gp2x_audio_volume << 8) | gp2x_audio_volume;
332 ioctl(gpsp_gp2x_dev_audio, SOUND_MIXER_WRITE_PCM, &volume);
335 u32 gpsp_plat_joystick_read(void)
339 read(gpsp_gp2x_gpiodev, &value, 4);
350 u32 value = (gpsp_gp2x_memregs[0x1198 >> 1] & 0x00FF);
361 return ~((gpsp_gp2x_memregs[0x1184 >> 1] & 0xFF00) | value |
362 (gpsp_gp2x_memregs[0x1186 >> 1] << 16));
366 u32 gpsp_plat_buttons_to_cursor(u32 buttons)
368 gui_action_type new_button = CURSOR_NONE;
371 new_button = CURSOR_BACK;
374 new_button = CURSOR_EXIT;
377 new_button = CURSOR_SELECT;
379 if(buttons & GP2X_UP)
380 new_button = CURSOR_UP;
382 if(buttons & GP2X_DOWN)
383 new_button = CURSOR_DOWN;
385 if(buttons & GP2X_LEFT)
386 new_button = CURSOR_LEFT;
388 if(buttons & GP2X_RIGHT)
389 new_button = CURSOR_RIGHT;
392 new_button = CURSOR_L;
395 new_button = CURSOR_R;
400 // Fout = (m * Fin) / (p * 2^s)
401 void set_FCLK(u32 MHZ)
404 u32 mdiv, pdiv, sdiv = 0;
406 #define SYS_CLK_FREQ 27
407 // m = MDIV, p = PDIV, s = SDIV
409 mdiv = (MHZ * pdiv) / SYS_CLK_FREQ;
411 v = (pdiv<<18) | (mdiv<<8) | sdiv;
413 gpsp_gp2x_memregl[0xf004>>2] = v;
414 gpsp_gp2x_memregl[0xf07c>>2] |= 0x8000;
415 while (gpsp_gp2x_memregl[0xf07c>>2] & 0x8000)
418 #define SYS_CLK_FREQ 7372800
419 // m = MDIV + 8, p = PDIV + 2, s = SDIV
421 mdiv = (MHZ * pdiv * 1000000) / SYS_CLK_FREQ;
423 v = ((mdiv-8)<<8) | ((pdiv-2)<<2) | sdiv;
424 gpsp_gp2x_memregs[0x910>>1] = v;