frontend/plat_omap.c

   1 /*
   2  * (C) Gražvydas "notaz" Ignotas, 2010-2012
   3  *
   4  * This work is licensed under the terms of the GNU GPLv2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12 #include <fcntl.h>
  13 #include <sys/ioctl.h>
  14 #include <unistd.h>
  15 #include <linux/omapfb.h>
  16
  17 #include "libpicofe/menu.h"
  18 #include "libpicofe/input.h"
  19 #include "libpicofe/linux/fbdev.h"
  20 #include "libpicofe/linux/xenv.h"
  21 #include "plugin_lib.h"
  22 #include "pl_gun_ts.h"
  23 #include "plat.h"
  24 #include "plat_omap.h"
  25 #include "menu.h"
  26
  27 static struct vout_fbdev *main_fb, *layer_fb;
  28
  29 static int omap_setup_layer_(int fd, int enabled, int x, int y, int w, int h)
  30 {
  31         struct omapfb_plane_info pi = { 0, };
  32         struct omapfb_mem_info mi = { 0, };
  33         int ret;
  34
  35         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
  36         if (ret != 0) {
  37                 perror("QUERY_PLANE");
  38                 return -1;
  39         }
  40
  41         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
  42         if (ret != 0) {
  43                 perror("QUERY_MEM");
  44                 return -1;
  45         }
  46
  47         /* must disable when changing stuff */
  48         if (pi.enabled) {
  49                 pi.enabled = 0;
  50                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
  51                 if (ret != 0)
  52                         perror("SETUP_PLANE");
  53         }
  54
  55         // upto 1024x512 (2x resolution enhancement)
  56         if (mi.size < 1024*512*2 * 3) {
  57                 mi.size = 1024*512*2 * 3;
  58                 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
  59                 if (ret != 0) {
  60                         perror("SETUP_MEM");
  61                         return -1;
  62                 }
  63         }
  64
  65         pi.pos_x = x;
  66         pi.pos_y = y;
  67         pi.out_width = w;
  68         pi.out_height = h;
  69         pi.enabled = enabled;
  70
  71         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
  72         if (ret != 0) {
  73                 perror("SETUP_PLANE");
  74                 return -1;
  75         }
  76
  77         return 0;
  78 }
  79
  80 static int omap_enable_layer(int enabled)
  81 {
  82         if (enabled)
  83                 pl_set_gun_rect(g_layer_x, g_layer_y, g_layer_w, g_layer_h);
  84
  85         return omap_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled,
  86                 g_layer_x, g_layer_y, g_layer_w, g_layer_h);
  87 }
  88
  89 void plat_omap_gvideo_open(void)
  90 {
  91         omap_enable_layer(1);
  92
  93         // try to align redraws to vsync
  94         vout_fbdev_wait_vsync(layer_fb);
  95 }
  96
  97 void *plat_gvideo_set_mode(int *w_in, int *h_in, int *bpp)
  98 {
  99         int l = 0, r = 0, t = 0, b = 0;
 100         int w = *w_in, h = *h_in;
 101         void *buf;
 102
 103         if (g_scaler == SCALE_1_1 || g_scaler == SCALE_2_2) {
 104                 if (w > g_menuscreen_w) {
 105                         l = r = (w - g_menuscreen_w) / 2;
 106                         w -= l + r;
 107                 }
 108                 if (h > g_menuscreen_h) {
 109                         t = b = (h - g_menuscreen_h) / 2;
 110                         h -= t + b;
 111                 }
 112         }
 113
 114         buf = vout_fbdev_resize(layer_fb, w, h, *bpp,
 115                 l, r, t, b, 3);
 116
 117         vout_fbdev_clear(layer_fb);
 118
 119         omap_enable_layer(1);
 120
 121         return buf;
 122 }
 123
 124 void *plat_gvideo_flip(void)
 125 {
 126         return vout_fbdev_flip(layer_fb);
 127 }
 128
 129 void plat_gvideo_close(void)
 130 {
 131         omap_enable_layer(0);
 132 }
 133
 134 void plat_video_menu_enter(int is_rom_loaded)
 135 {
 136         g_menuscreen_ptr = vout_fbdev_resize(main_fb,
 137                 g_menuscreen_w, g_menuscreen_h, 16, 0, 0, 0, 0, 3);
 138         if (g_menuscreen_ptr == NULL)
 139                 fprintf(stderr, "warning: vout_fbdev_resize failed\n");
 140
 141         xenv_update(NULL, NULL, NULL, NULL);
 142 }
 143
 144 void plat_video_menu_begin(void)
 145 {
 146 }
 147
 148 void plat_video_menu_end(void)
 149 {
 150         g_menuscreen_ptr = vout_fbdev_flip(main_fb);
 151 }
 152
 153 void plat_video_menu_leave(void)
 154 {
 155         /* have to get rid of panning so that plugins that
 156          * use fb0 and don't ever pan can work. */
 157         vout_fbdev_clear(main_fb);
 158         g_menuscreen_ptr = vout_fbdev_resize(main_fb,
 159                 g_menuscreen_w, g_menuscreen_h, 16, 0, 0, 0, 0, 1);
 160         if (g_menuscreen_ptr == NULL)
 161                 fprintf(stderr, "warning: vout_fbdev_resize failed\n");
 162 }
 163
 164 void plat_minimize(void)
 165 {
 166         int ret;
 167
 168         ret = vout_fbdev_save(layer_fb);
 169         if (ret != 0) {
 170                 printf("minimize: layer/fb handling failed\n");
 171                 return;
 172         }
 173
 174         xenv_minimize();
 175
 176         in_set_config_int(0, IN_CFG_BLOCKING, 0); /* flush event queue */
 177         omap_enable_layer(0); /* restore layer mem */
 178         vout_fbdev_restore(layer_fb);
 179 }
 180
 181 void *plat_prepare_screenshot(int *w, int *h, int *bpp)
 182 {
 183         return NULL;
 184 }
 185
 186 void plat_omap_init(void)
 187 {
 188         const char *main_fb_name, *layer_fb_name;
 189         int fd, ret, w, h;
 190
 191         main_fb_name = getenv("FBDEV_MAIN");
 192         if (main_fb_name == NULL)
 193                 main_fb_name = "/dev/fb0";
 194
 195         layer_fb_name = getenv("FBDEV_LAYER");
 196         if (layer_fb_name == NULL)
 197                 layer_fb_name = "/dev/fb1";
 198
 199         // must set the layer up first to be able to use it
 200         fd = open(layer_fb_name, O_RDWR);
 201         if (fd == -1) {
 202                 fprintf(stderr, "%s: ", layer_fb_name);
 203                 perror("open");
 204                 exit(1);
 205         }
 206
 207         g_layer_x = 80, g_layer_y = 0;
 208         g_layer_w = 640, g_layer_h = 480;
 209
 210         ret = omap_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
 211         close(fd);
 212         if (ret != 0) {
 213                 fprintf(stderr, "failed to set up layer, exiting.\n");
 214                 exit(1);
 215         }
 216
 217         xenv_init(NULL, "PCSX-ReARMed");
 218
 219         w = h = 0;
 220         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);
 221         if (main_fb == NULL) {
 222                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);
 223                 exit(1);
 224         }
 225
 226         g_menuscreen_w = w;
 227         g_menuscreen_h = h;
 228         g_menuscreen_ptr = vout_fbdev_flip(main_fb);
 229         pl_rearmed_cbs.screen_w = w;
 230         pl_rearmed_cbs.screen_h = h;
 231
 232         w = 640;
 233         h = 512;
 234         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 3);
 235         if (layer_fb == NULL) {
 236                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);
 237                 goto fail0;
 238         }
 239
 240         return;
 241
 242 fail0:
 243         vout_fbdev_finish(main_fb);
 244         exit(1);
 245 }
 246
 247 void plat_omap_finish(void)
 248 {
 249         omap_enable_layer(0);
 250         vout_fbdev_finish(layer_fb);
 251         vout_fbdev_finish(main_fb);
 252         xenv_finish();
 253 }
 254