l4/pkg/drivers/lcd/src/lcd-virtual.c

   1 /*
   2  * Dummy LCD driver
   3  */
   4
   5 #include <l4/drivers/lcd.h>
   6 #include <stdlib.h>
   7
   8 static const char *arm_lcd_none_get_info(void)
   9 { return "ARM LCD virtual driver"; }
  10
  11 static void void_dummy(void) {}
  12
  13 static int probe(const char *c)             { (void)c; return 0; }
  14 static unsigned int mem_size(void) { return 200 * 320 * 4; }
  15 static void *fb(void)              { return malloc(mem_size()); }
  16
  17 static int get_fbinfo(l4re_video_view_info_t *vinfo)
  18 {
  19   vinfo->width          = 320;
  20   vinfo->width          = 200;
  21   vinfo->bytes_per_line = 4 * vinfo->width;
  22
  23   vinfo->pixel_info.bytes_per_pixel = 4;
  24   vinfo->pixel_info.r.shift         = 0;
  25   vinfo->pixel_info.r.size          = 8;
  26   vinfo->pixel_info.g.shift         = 8;
  27   vinfo->pixel_info.g.size          = 8;
  28   vinfo->pixel_info.b.shift         = 16;
  29   vinfo->pixel_info.b.size          = 8;
  30   vinfo->pixel_info.a.shift         = 0;
  31   vinfo->pixel_info.a.size          = 0;
  32
  33   return 0;
  34 }
  35
  36 static struct arm_lcd_ops arm_lcd_ops_virtual = {
  37   .probe              = probe,
  38   .get_fbinfo         = get_fbinfo,
  39   .get_fb             = fb,
  40   .get_video_mem_size = mem_size,
  41   .get_info           = arm_lcd_none_get_info,
  42   .enable             = void_dummy,
  43   .disable            = void_dummy,
  44 };
  45
  46 arm_lcd_register(&arm_lcd_ops_virtual);