drivers/video/sandbox_sdl.c

   1 /*
   2  * Copyright (c) 2013 Google, Inc
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <fdtdec.h>
  10 #include <video.h>
  11 #include <asm/sdl.h>
  12 #include <asm/u-boot-sandbox.h>
  13 #include <dm/test.h>
  14
  15 DECLARE_GLOBAL_DATA_PTR;
  16
  17 enum {
  18         /* Default LCD size we support */
  19         LCD_MAX_WIDTH           = 1366,
  20         LCD_MAX_HEIGHT          = 768,
  21 };
  22
  23 static int sandbox_sdl_probe(struct udevice *dev)
  24 {
  25         struct sandbox_sdl_plat *plat = dev_get_platdata(dev);
  26         struct video_priv *uc_priv = dev_get_uclass_priv(dev);
  27         int ret;
  28
  29         ret = sandbox_sdl_init_display(plat->xres, plat->yres, plat->bpix);
  30         if (ret) {
  31                 puts("LCD init failed\n");
  32                 return ret;
  33         }
  34         uc_priv->xsize = plat->xres;
  35         uc_priv->ysize = plat->yres;
  36         uc_priv->bpix = plat->bpix;
  37         uc_priv->rot = plat->rot;
  38
  39         return 0;
  40 }
  41
  42 static int sandbox_sdl_bind(struct udevice *dev)
  43 {
  44         struct video_uc_platdata *uc_plat = dev_get_uclass_platdata(dev);
  45         struct sandbox_sdl_plat *plat = dev_get_platdata(dev);
  46         const void *blob = gd->fdt_blob;
  47         int node = dev->of_offset;
  48         int ret = 0;
  49
  50         plat->xres = fdtdec_get_int(blob, node, "xres", LCD_MAX_WIDTH);
  51         plat->yres = fdtdec_get_int(blob, node, "yres", LCD_MAX_HEIGHT);
  52         plat->bpix = VIDEO_BPP16;
  53         uc_plat->size = plat->xres * plat->yres * (1 << plat->bpix) / 8;
  54         debug("%s: Frame buffer size %x\n", __func__, uc_plat->size);
  55
  56         return ret;
  57 }
  58
  59 static const struct udevice_id sandbox_sdl_ids[] = {
  60         { .compatible = "sandbox,lcd-sdl" },
  61         { }
  62 };
  63
  64 U_BOOT_DRIVER(sdl_sandbox) = {
  65         .name   = "sdl_sandbox",
  66         .id     = UCLASS_VIDEO,
  67         .of_match = sandbox_sdl_ids,
  68         .bind   = sandbox_sdl_bind,
  69         .probe  = sandbox_sdl_probe,
  70         .platdata_auto_alloc_size       = sizeof(struct sandbox_sdl_plat),
  71 };