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 "common/menu.h"
  18 #include "common/input.h"
  19 #include "linux/fbdev.h"
  20 #include "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         if (mi.size < 640*512*3*3) {
  56                 mi.size = 640*512*3*3;
  57                 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
  58                 if (ret != 0) {
  59                         perror("SETUP_MEM");
  60                         return -1;
  61                 }
  62         }
  63
  64         pi.pos_x = x;
  65         pi.pos_y = y;
  66         pi.out_width = w;
  67         pi.out_height = h;
  68         pi.enabled = enabled;
  69
  70         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
  71         if (ret != 0) {
  72                 perror("SETUP_PLANE");
  73                 return -1;
  74         }
  75
  76         return 0;
  77 }
  78
  79 static int omap_enable_layer(int enabled)
  80 {
  81         if (enabled)
  82                 pl_set_gun_rect(g_layer_x, g_layer_y, g_layer_w, g_layer_h);
  83
  84         return omap_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled,
  85                 g_layer_x, g_layer_y, g_layer_w, g_layer_h);
  86 }
  87
  88 void plat_omap_gvideo_open(void)
  89 {
  90         omap_enable_layer(1);
  91
  92         // try to align redraws to vsync
  93         vout_fbdev_wait_vsync(layer_fb);
  94 }
  95
  96 void *plat_gvideo_set_mode(int *w, int *h, int *bpp)
  97 {
  98         void *buf;
  99
 100         vout_fbdev_clear(layer_fb);
 101         buf = vout_fbdev_resize(layer_fb, *w, *h, *bpp, 0, 0, 0, 0, 3);
 102
 103         omap_enable_layer(1);
 104
 105         return buf;
 106 }
 107
 108 void *plat_gvideo_flip(void)
 109 {
 110         return vout_fbdev_flip(layer_fb);
 111 }
 112
 113 void plat_gvideo_close(void)
 114 {
 115         omap_enable_layer(0);
 116 }
 117
 118 void plat_video_menu_enter(int is_rom_loaded)
 119 {
 120         g_menuscreen_ptr = vout_fbdev_resize(main_fb,
 121                 g_menuscreen_w, g_menuscreen_h, 16, 0, 0, 0, 0, 3);
 122         if (g_menuscreen_ptr == NULL)
 123                 fprintf(stderr, "warning: vout_fbdev_resize failed\n");
 124
 125         xenv_update(NULL, NULL, NULL, NULL);
 126 }
 127
 128 void plat_video_menu_begin(void)
 129 {
 130 }
 131
 132 void plat_video_menu_end(void)
 133 {
 134         g_menuscreen_ptr = vout_fbdev_flip(main_fb);
 135 }
 136
 137 void plat_video_menu_leave(void)
 138 {
 139         /* have to get rid of panning so that plugins that
 140          * use fb0 and don't ever pan can work. */
 141         vout_fbdev_clear(main_fb);
 142         g_menuscreen_ptr = vout_fbdev_resize(main_fb,
 143                 g_menuscreen_w, g_menuscreen_h, 16, 0, 0, 0, 0, 1);
 144         if (g_menuscreen_ptr == NULL)
 145                 fprintf(stderr, "warning: vout_fbdev_resize failed\n");
 146 }
 147
 148 void plat_minimize(void)
 149 {
 150         omap_enable_layer(0);
 151         xenv_minimize();
 152         in_set_config_int(0, IN_CFG_BLOCKING, 0); /* flush event queue */
 153         omap_enable_layer(1);
 154 }
 155
 156 void *plat_prepare_screenshot(int *w, int *h, int *bpp)
 157 {
 158         return NULL;
 159 }
 160
 161 void plat_omap_init(void)
 162 {
 163         const char *main_fb_name, *layer_fb_name;
 164         int fd, ret, w, h;
 165
 166         main_fb_name = getenv("FBDEV_MAIN");
 167         if (main_fb_name == NULL)
 168                 main_fb_name = "/dev/fb0";
 169
 170         layer_fb_name = getenv("FBDEV_LAYER");
 171         if (layer_fb_name == NULL)
 172                 layer_fb_name = "/dev/fb1";
 173
 174         // must set the layer up first to be able to use it
 175         fd = open(layer_fb_name, O_RDWR);
 176         if (fd == -1) {
 177                 fprintf(stderr, "%s: ", layer_fb_name);
 178                 perror("open");
 179                 exit(1);
 180         }
 181
 182         g_layer_x = 80, g_layer_y = 0;
 183         g_layer_w = 640, g_layer_h = 480;
 184
 185         ret = omap_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
 186         close(fd);
 187         if (ret != 0) {
 188                 fprintf(stderr, "failed to set up layer, exiting.\n");
 189                 exit(1);
 190         }
 191
 192         xenv_init(NULL, "PCSX-ReARMed");
 193
 194         w = h = 0;
 195         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);
 196         if (main_fb == NULL) {
 197                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);
 198                 exit(1);
 199         }
 200
 201         g_menuscreen_w = w;
 202         g_menuscreen_h = h;
 203         g_menuscreen_ptr = vout_fbdev_flip(main_fb);
 204         pl_rearmed_cbs.screen_w = w;
 205         pl_rearmed_cbs.screen_h = h;
 206
 207         w = 640;
 208         h = 512;
 209         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 3);
 210         if (layer_fb == NULL) {
 211                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);
 212                 goto fail0;
 213         }
 214
 215         return;
 216
 217 fail0:
 218         vout_fbdev_finish(main_fb);
 219         exit(1);
 220 }
 221
 222 void plat_omap_finish(void)
 223 {
 224         omap_enable_layer(0);
 225         vout_fbdev_finish(layer_fb);
 226         vout_fbdev_finish(main_fb);
 227         xenv_finish();
 228 }
 229