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- /*
- * PicoDrive
- * (C) notaz, 2010,2011
- *
- * This work is licensed under the terms of MAME license.
- * See COPYING file in the top-level directory.
- */
- #include <stdio.h>
- #include <unistd.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <sys/ioctl.h>
- #include <unistd.h>
- #include <linux/fb.h>
- #include <linux/omapfb.h>
- #include "../common/emu.h"
- #include "../common/menu.h"
- #include "../common/plat.h"
- #include "../common/arm_utils.h"
- #include "../common/input.h"
- #include "../linux/sndout_oss.h"
- #include "../linux/fbdev.h"
- #include "../linux/xenv.h"
- #include "plat.h"
- #include "asm_utils.h"
- #include "version.h"
- #include <pico/pico_int.h>
- #include <linux/input.h>
- static struct vout_fbdev *main_fb, *layer_fb;
- // g_layer_* - in use, g_layer_c* - configured custom
- int g_layer_cx, g_layer_cy, g_layer_cw, g_layer_ch;
- static int g_layer_x, g_layer_y;
- static int g_layer_w = 320, g_layer_h = 240;
- static int g_osd_fps_x, g_osd_y, doing_bg_frame;
- static const char pnd_script_base[] = "sudo -n /usr/pandora/scripts";
- static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
- static unsigned char __attribute__((aligned(4))) fb_copy[g_screen_width * g_screen_height * 2];
- static void *temp_frame;
- unsigned char *PicoDraw2FB;
- const char *renderer_names[] = { NULL };
- const char *renderer_names32x[] = { NULL };
- static const char * const pandora_gpio_keys[KEY_MAX + 1] = {
- [0 ... KEY_MAX] = NULL,
- [KEY_UP] = "Up",
- [KEY_LEFT] = "Left",
- [KEY_RIGHT] = "Right",
- [KEY_DOWN] = "Down",
- [KEY_HOME] = "A",
- [KEY_PAGEDOWN] = "X",
- [KEY_END] = "B",
- [KEY_PAGEUP] = "Y",
- [KEY_RIGHTSHIFT]= "L",
- [KEY_RIGHTCTRL] = "R",
- [KEY_LEFTALT] = "Start",
- [KEY_LEFTCTRL] = "Select",
- [KEY_MENU] = "Pandora",
- };
- struct in_default_bind in_evdev_defbinds[] =
- {
- /* MXYZ SACB RLDU */
- { KEY_UP, IN_BINDTYPE_PLAYER12, 0 },
- { KEY_DOWN, IN_BINDTYPE_PLAYER12, 1 },
- { KEY_LEFT, IN_BINDTYPE_PLAYER12, 2 },
- { KEY_RIGHT, IN_BINDTYPE_PLAYER12, 3 },
- { KEY_S, IN_BINDTYPE_PLAYER12, 4 }, /* B */
- { KEY_D, IN_BINDTYPE_PLAYER12, 5 }, /* C */
- { KEY_A, IN_BINDTYPE_PLAYER12, 6 }, /* A */
- { KEY_ENTER, IN_BINDTYPE_PLAYER12, 7 },
- { KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },
- { KEY_SPACE, IN_BINDTYPE_EMU, PEVB_MENU },
- /* Pandora */
- { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, 4 },
- { KEY_END, IN_BINDTYPE_PLAYER12, 5 },
- { KEY_HOME, IN_BINDTYPE_PLAYER12, 6 },
- { KEY_LEFTALT, IN_BINDTYPE_PLAYER12, 7 },
- { KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
- { KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
- { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },
- { 0, 0, 0 }
- };
- static int get_cpu_clock(void)
- {
- FILE *f;
- int ret = 0;
- f = fopen("/proc/pandora/cpu_mhz_max", "r");
- if (f) {
- fscanf(f, "%d", &ret);
- fclose(f);
- }
- return ret;
- }
- void pemu_prep_defconfig(void)
- {
- defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;
- defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX|POPT_EN_MCD_PSYNC;
- defaultConfig.scaling = SCALE_2x2_3x2;
- }
- void pemu_validate_config(void)
- {
- currentConfig.CPUclock = get_cpu_clock();
- }
- static void osd_text(int x, int y, const char *text)
- {
- int len = strlen(text)*8;
- int i, h;
- len++;
- for (h = 0; h < 8; h++) {
- unsigned short *p;
- p = (unsigned short *)g_screen_ptr + x + g_screen_width*(y + h);
- for (i = len; i; i--, p++)
- *p = (*p>>2) & 0x39e7;
- }
- emu_text_out16(x, y, text);
- }
- static void draw_cd_leds(void)
- {
- int old_reg;
- old_reg = Pico_mcd->s68k_regs[0];
- if (0) {
- // 8-bit modes
- unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
- unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
- *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =
- *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =
- *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;
- *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =
- *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =
- *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;
- } else {
- // 16-bit modes
- unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);
- unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
- unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
- *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
- *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
- *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
- }
- }
- static int emuscan(unsigned int num)
- {
- DrawLineDest = (unsigned short *)g_screen_ptr + num * g_screen_width;
- return 0;
- }
- void pemu_finalize_frame(const char *fps, const char *notice)
- {
- if (notice && notice[0])
- osd_text(2, g_osd_y, notice);
- if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS))
- osd_text(g_osd_fps_x, g_osd_y, fps);
- if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))
- draw_cd_leds();
- }
- void plat_video_flip(void)
- {
- g_screen_ptr = vout_fbdev_flip(layer_fb);
- // XXX: drain OS event queue here, maybe we'll actually use it someday..
- int dummy;
- xenv_update(&dummy);
- }
- void plat_video_toggle_renderer(int change, int is_menu)
- {
- }
- void plat_video_menu_enter(int is_rom_loaded)
- {
- }
- void plat_video_menu_begin(void)
- {
- }
- void plat_video_menu_end(void)
- {
- g_menuscreen_ptr = vout_fbdev_flip(main_fb);
- }
- void plat_video_wait_vsync(void)
- {
- vout_fbdev_wait_vsync(main_fb);
- }
- void plat_status_msg_clear(void)
- {
- vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);
- }
- void plat_status_msg_busy_next(const char *msg)
- {
- plat_status_msg_clear();
- pemu_finalize_frame("", msg);
- plat_video_flip();
- emu_status_msg("");
- reset_timing = 1;
- }
- void plat_status_msg_busy_first(const char *msg)
- {
- plat_status_msg_busy_next(msg);
- }
- void plat_update_volume(int has_changed, int is_up)
- {
- static int prev_frame = 0, wait_frames = 0;
- int vol = currentConfig.volume;
- if (has_changed)
- {
- if (is_up) {
- if (vol < 99) vol++;
- } else {
- if (vol > 0) vol--;
- }
- wait_frames = 0;
- sndout_oss_setvol(vol, vol);
- currentConfig.volume = vol;
- emu_status_msg("VOL: %02i", vol);
- prev_frame = Pico.m.frame_count;
- }
- }
- static void make_bg(int no_scale)
- {
- unsigned short *s = (void *)fb_copy;
- int x, y;
- memset32(g_menubg_src_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2 / 4);
- if (!no_scale && g_menuscreen_w >= 640 && g_menuscreen_h >= 480) {
- unsigned int t, *d = g_menubg_src_ptr;
- d += (g_menuscreen_h / 2 - 480 / 2) * g_menuscreen_w / 2;
- d += (g_menuscreen_w / 2 - 640 / 2) / 2;
- for (y = 0; y < 240; y++, s += 320, d += g_menuscreen_w*2/2) {
- for (x = 0; x < 320; x++) {
- t = s[x];
- t |= t << 16;
- d[x] = d[x + g_menuscreen_w / 2] = t;
- }
- }
- return;
- }
- if (g_menuscreen_w >= 320 && g_menuscreen_h >= 240) {
- unsigned short *d = g_menubg_src_ptr;
- d += (g_menuscreen_h / 2 - 240 / 2) * g_menuscreen_w;
- d += (g_menuscreen_w / 2 - 320 / 2);
- for (y = 0; y < 240; y++, s += 320, d += g_menuscreen_w)
- memcpy(d, s, 320*2);
- return;
- }
- }
- void pemu_forced_frame(int no_scale, int do_emu)
- {
- doing_bg_frame = 1;
- emu_cmn_forced_frame(no_scale, do_emu);
- doing_bg_frame = 0;
- // making a copy because enabling the layer clears it's mem
- memcpy32((void *)fb_copy, g_screen_ptr, sizeof(fb_copy) / 4);
- make_bg(no_scale);
- }
- static void oss_write_nonblocking(int len)
- {
- // sndout_oss_can_write() is not reliable, only use with no_frmlimit
- if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))
- return;
- sndout_oss_write_nb(PsndOut, len);
- }
- void pemu_sound_start(void)
- {
- PsndOut = NULL;
- if (currentConfig.EmuOpt & EOPT_EN_SOUND)
- {
- int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;
- PsndRerate(Pico.m.frame_count ? 1 : 0);
- /*
- * for 44k stereo, we do 1470 samples/emu_frame
- * OMAP driver does power of 2 buffers, so we need at least 4K buffer.
- * The most we can lag is 1K samples, size of OMAP's McBSP FIFO,
- * with 2K sample buffer we might sometimes lag more than that,
- * thus causing underflows.
- */
- printf("starting audio: %i len: %i stereo: %i, pal: %i\n",
- PsndRate, PsndLen, is_stereo, Pico.m.pal);
- sndout_oss_start(PsndRate, is_stereo, 2);
- //sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
- PicoWriteSound = oss_write_nonblocking;
- plat_update_volume(0, 0);
- memset(sndBuffer, 0, sizeof(sndBuffer));
- PsndOut = sndBuffer;
- }
- }
- void pemu_sound_stop(void)
- {
- sndout_oss_stop();
- }
- void pemu_sound_wait(void)
- {
- // don't need to do anything, writes will block by themselves
- }
- void plat_debug_cat(char *str)
- {
- }
- static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)
- {
- struct omapfb_plane_info pi;
- struct omapfb_mem_info mi;
- int ret;
- ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
- if (ret != 0) {
- perror("QUERY_PLANE");
- return -1;
- }
- ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
- if (ret != 0) {
- perror("QUERY_MEM");
- return -1;
- }
- /* must disable when changing stuff */
- if (pi.enabled) {
- pi.enabled = 0;
- ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
- if (ret != 0)
- perror("SETUP_PLANE");
- }
- mi.size = 320*240*2*4;
- ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
- if (ret != 0) {
- perror("SETUP_MEM");
- return -1;
- }
- pi.pos_x = x;
- pi.pos_y = y;
- pi.out_width = w;
- pi.out_height = h;
- pi.enabled = enabled;
- ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
- if (ret != 0) {
- perror("SETUP_PLANE");
- return -1;
- }
- return 0;
- }
- int pnd_setup_layer(int enabled, int x, int y, int w, int h)
- {
- return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);
- }
- void pnd_restore_layer_data(void)
- {
- short *t = (short *)fb_copy + 320*240 / 2 + 160;
- // right now this is used by menu, which wants to preview something
- // so try to get something on the layer.
- if ((t[0] | t[5] | t[13]) == 0)
- memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);
- memcpy32(g_screen_ptr, (void *)fb_copy, 320*240*2 / 4);
- plat_video_flip();
- }
- static void apply_filter(int which)
- {
- char buf[128];
- int i;
- if (pnd_filter_list == NULL)
- return;
- for (i = 0; i < which; i++)
- if (pnd_filter_list[i] == NULL)
- return;
- if (pnd_filter_list[i] == NULL)
- return;
- snprintf(buf, sizeof(buf), "%s/op_videofir.sh %s", pnd_script_base, pnd_filter_list[i]);
- system(buf);
- }
- void emu_video_mode_change(int start_line, int line_count, int is_32cols)
- {
- int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;
- if (doing_bg_frame)
- return;
- PicoDrawSetOutFormat(PDF_RGB555, 1);
- PicoDrawSetCallbacks(emuscan, NULL);
- if (is_32cols) {
- fb_w = 256;
- fb_left = fb_right = 32;
- }
- switch (currentConfig.scaling) {
- case SCALE_1x1:
- g_layer_w = fb_w;
- g_layer_h = fb_h;
- break;
- case SCALE_2x2_3x2:
- g_layer_w = fb_w * (is_32cols ? 3 : 2);
- g_layer_h = fb_h * 2;
- break;
- case SCALE_2x2_2x2:
- g_layer_w = fb_w * 2;
- g_layer_h = fb_h * 2;
- break;
- case SCALE_FULLSCREEN:
- g_layer_w = 800;
- g_layer_h = 480;
- break;
- case SCALE_CUSTOM:
- g_layer_x = g_layer_cx;
- g_layer_y = g_layer_cy;
- g_layer_w = g_layer_cw;
- g_layer_h = g_layer_ch;
- break;
- }
- if (currentConfig.scaling != SCALE_CUSTOM) {
- // center the layer
- g_layer_x = 800 / 2 - g_layer_w / 2;
- g_layer_y = 480 / 2 - g_layer_h / 2;
- }
- switch (currentConfig.scaling) {
- case SCALE_FULLSCREEN:
- case SCALE_CUSTOM:
- fb_top = start_line;
- fb_h = line_count;
- break;
- }
- g_osd_fps_x = is_32cols ? 232 : 264;
- g_osd_y = fb_top + fb_h - 8;
- pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
- vout_fbdev_clear(layer_fb);
- vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 3);
- plat_video_flip();
- }
- void pemu_loop_prep(void)
- {
- static int pal_old = -1;
- static int filter_old = -1;
- char buf[128];
- if (currentConfig.CPUclock != get_cpu_clock()) {
- snprintf(buf, sizeof(buf), "unset DISPLAY; echo y | %s/op_cpuspeed.sh %d",
- pnd_script_base, currentConfig.CPUclock);
- system(buf);
- }
- if (Pico.m.pal != pal_old) {
- snprintf(buf, sizeof(buf), "%s/op_lcdrate.sh %d",
- pnd_script_base, Pico.m.pal ? 50 : 60);
- system(buf);
- pal_old = Pico.m.pal;
- }
- if (currentConfig.filter != filter_old) {
- apply_filter(currentConfig.filter);
- filter_old = currentConfig.filter;
- }
- // make sure there is no junk left behind the layer
- memset32(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2 / 4);
- g_menuscreen_ptr = vout_fbdev_flip(main_fb);
- // emu_video_mode_change will call pnd_setup_layer()
- // dirty buffers better go now than during gameplay
- sync();
- sleep(0);
- pemu_sound_start();
- }
- void pemu_loop_end(void)
- {
- pemu_sound_stop();
- /* do one more frame for menu bg */
- pemu_forced_frame(0, 1);
- pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
- }
- void plat_wait_till_us(unsigned int us_to)
- {
- unsigned int now;
- signed int diff;
- now = plat_get_ticks_us();
- // XXX: need to check NOHZ
- diff = (signed int)(us_to - now);
- if (diff > 10000) {
- //printf("sleep %d\n", us_to - now);
- usleep(diff * 15 / 16);
- now = plat_get_ticks_us();
- //printf(" wake %d\n", (signed)(us_to - now));
- }
- /*
- while ((signed int)(us_to - now) > 512) {
- spend_cycles(1024);
- now = plat_get_ticks_us();
- }
- */
- }
- void plat_early_init(void)
- {
- }
- void plat_init(void)
- {
- const char *main_fb_name, *layer_fb_name;
- int fd, ret, w, h;
- main_fb_name = getenv("FBDEV_MAIN");
- if (main_fb_name == NULL)
- main_fb_name = "/dev/fb0";
- layer_fb_name = getenv("FBDEV_LAYER");
- if (layer_fb_name == NULL)
- layer_fb_name = "/dev/fb1";
- // must set the layer up first to be able to use it
- fd = open(layer_fb_name, O_RDWR);
- if (fd == -1) {
- fprintf(stderr, "%s: ", layer_fb_name);
- perror("open");
- exit(1);
- }
- ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
- close(fd);
- if (ret != 0) {
- fprintf(stderr, "failed to set up layer, exiting.\n");
- exit(1);
- }
- xenv_init();
- w = h = 0;
- main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);
- if (main_fb == NULL) {
- fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);
- exit(1);
- }
- g_menuscreen_w = w;
- g_menuscreen_h = h;
- g_menuscreen_ptr = vout_fbdev_flip(main_fb);
- w = 320; h = 240;
- layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 3);
- if (layer_fb == NULL) {
- fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);
- goto fail0;
- }
- if (w != g_screen_width || h != g_screen_height) {
- fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);
- goto fail1;
- }
- g_screen_ptr = vout_fbdev_flip(layer_fb);
- temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);
- if (temp_frame == NULL) {
- fprintf(stderr, "OOM\n");
- goto fail1;
- }
- g_menubg_ptr = temp_frame;
- g_menubg_src_ptr = temp_frame;
- PicoDraw2FB = temp_frame;
- sndout_oss_init();
- pnd_menu_init();
- in_set_config(in_name_to_id("evdev:gpio-keys"), IN_CFG_KEY_NAMES,
- pandora_gpio_keys, sizeof(pandora_gpio_keys));
- return;
- fail1:
- vout_fbdev_finish(layer_fb);
- fail0:
- vout_fbdev_finish(main_fb);
- exit(1);
- }
- void plat_finish(void)
- {
- sndout_oss_exit();
- vout_fbdev_finish(main_fb);
- xenv_finish();
- printf("all done\n");
- }
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