frontend/plat_omap.c

   1 /*
   2  * (C) notaz, 2010
   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 "common/menu.h"
  18 #include "linux/fbdev.h"
  19 #include "linux/oshide.h"
  20 #include "plugin_lib.h"
  21 #include "pl_gun_ts.h"
  22 #include "omap.h"
  23 #include "plat.h"
  24
  25
  26 static struct vout_fbdev *main_fb;
  27 int g_layer_x = 80, g_layer_y = 0;
  28 int g_layer_w = 640, g_layer_h = 480;
  29
  30 struct vout_fbdev *layer_fb;
  31
  32 static int omap_setup_layer_(int fd, int enabled, int x, int y, int w, int h)
  33 {
  34         struct omapfb_plane_info pi = { 0, };
  35         struct omapfb_mem_info mi = { 0, };
  36         int ret;
  37
  38         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
  39         if (ret != 0) {
  40                 perror("QUERY_PLANE");
  41                 return -1;
  42         }
  43
  44         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
  45         if (ret != 0) {
  46                 perror("QUERY_MEM");
  47                 return -1;
  48         }
  49
  50         /* must disable when changing stuff */
  51         if (pi.enabled) {
  52                 pi.enabled = 0;
  53                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
  54                 if (ret != 0)
  55                         perror("SETUP_PLANE");
  56         }
  57
  58         if (mi.size < 640*512*3*3) {
  59                 mi.size = 640*512*3*3;
  60                 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
  61                 if (ret != 0) {
  62                         perror("SETUP_MEM");
  63                         return -1;
  64                 }
  65         }
  66
  67         pi.pos_x = x;
  68         pi.pos_y = y;
  69         pi.out_width = w;
  70         pi.out_height = h;
  71         pi.enabled = enabled;
  72
  73         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
  74         if (ret != 0) {
  75                 perror("SETUP_PLANE");
  76                 return -1;
  77         }
  78
  79         return 0;
  80 }
  81
  82 int omap_enable_layer(int enabled)
  83 {
  84         if (enabled)
  85                 pl_set_gun_rect(g_layer_x, g_layer_y, g_layer_w, g_layer_h);
  86
  87         return omap_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled,
  88                 g_layer_x, g_layer_y, g_layer_w, g_layer_h);
  89 }
  90
  91 void plat_video_menu_enter(int is_rom_loaded)
  92 {
  93         g_menuscreen_ptr = vout_fbdev_resize(main_fb,
  94                 g_menuscreen_w, g_menuscreen_h, 16, 0, 0, 0, 0, 3);
  95         if (g_menuscreen_ptr == NULL)
  96                 fprintf(stderr, "warning: vout_fbdev_resize failed\n");
  97 }
  98
  99 void plat_video_menu_begin(void)
 100 {
 101 }
 102
 103 void plat_video_menu_end(void)
 104 {
 105         g_menuscreen_ptr = vout_fbdev_flip(main_fb);
 106 }
 107
 108 void plat_video_menu_leave(void)
 109 {
 110         /* have to get rid of panning so that plugins that
 111          * use fb0 and don't ever pan can work. */
 112         vout_fbdev_clear(main_fb);
 113         g_menuscreen_ptr = vout_fbdev_resize(main_fb,
 114                 g_menuscreen_w, g_menuscreen_h, 16, 0, 0, 0, 0, 1);
 115         if (g_menuscreen_ptr == NULL)
 116                 fprintf(stderr, "warning: vout_fbdev_resize failed\n");
 117 }
 118
 119 void plat_init(void)
 120 {
 121         const char *main_fb_name, *layer_fb_name;
 122         void *temp_frame;
 123         int fd, ret, w, h;
 124
 125         main_fb_name = getenv("FBDEV_MAIN");
 126         if (main_fb_name == NULL)
 127                 main_fb_name = "/dev/fb0";
 128
 129         layer_fb_name = getenv("FBDEV_LAYER");
 130         if (layer_fb_name == NULL)
 131                 layer_fb_name = "/dev/fb1";
 132
 133         // must set the layer up first to be able to use it
 134         fd = open(layer_fb_name, O_RDWR);
 135         if (fd == -1) {
 136                 fprintf(stderr, "%s: ", layer_fb_name);
 137                 perror("open");
 138                 exit(1);
 139         }
 140
 141         ret = omap_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
 142         close(fd);
 143         if (ret != 0) {
 144                 fprintf(stderr, "failed to set up layer, exiting.\n");
 145                 exit(1);
 146         }
 147
 148         oshide_init();
 149
 150         w = h = 0;
 151         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);
 152         if (main_fb == NULL) {
 153                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);
 154                 exit(1);
 155         }
 156
 157         g_menuscreen_w = w;
 158         g_menuscreen_h = h;
 159         g_menuscreen_ptr = vout_fbdev_flip(main_fb);
 160
 161         w = 640;
 162         h = 512; // ??
 163         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 3);
 164         if (layer_fb == NULL) {
 165                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);
 166                 goto fail0;
 167         }
 168
 169         temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);
 170         if (temp_frame == NULL) {
 171                 fprintf(stderr, "OOM\n");
 172                 goto fail1;
 173         }
 174         g_menubg_ptr = temp_frame;
 175
 176         return;
 177
 178 fail1:
 179         vout_fbdev_finish(layer_fb);
 180 fail0:
 181         vout_fbdev_finish(main_fb);
 182         exit(1);
 183
 184 }
 185
 186 void plat_finish(void)
 187 {
 188         omap_enable_layer(0);
 189         vout_fbdev_finish(layer_fb);
 190         vout_fbdev_finish(main_fb);
 191         oshide_finish();
 192 }
 193