drivers/video/console_normal.c

   1 /*
   2  * Copyright (c) 2015 Google, Inc
   3  * (C) Copyright 2001-2015
   4  * DENX Software Engineering -- wd@denx.de
   5  * Compulab Ltd - http://compulab.co.il/
   6  * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #include <common.h>
  12 #include <dm.h>
  13 #include <video.h>
  14 #include <video_console.h>
  15 #include <video_font.h>         /* Get font data, width and height */
  16
  17 static int console_normal_set_row(struct udevice *dev, uint row, int clr)
  18 {
  19         struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
  20         void *line;
  21         int pixels = VIDEO_FONT_HEIGHT * vid_priv->line_length;
  22         int i;
  23
  24         line = vid_priv->fb + row * VIDEO_FONT_HEIGHT * vid_priv->line_length;
  25         switch (vid_priv->bpix) {
  26 #ifdef CONFIG_VIDEO_BPP8
  27         case VIDEO_BPP8: {
  28                 uint8_t *dst = line;
  29
  30                 for (i = 0; i < pixels; i++)
  31                         *dst++ = clr;
  32                 break;
  33         }
  34 #endif
  35 #ifdef CONFIG_VIDEO_BPP16
  36         case VIDEO_BPP16: {
  37                 uint16_t *dst = line;
  38
  39                 for (i = 0; i < pixels; i++)
  40                         *dst++ = clr;
  41                 break;
  42         }
  43 #endif
  44 #ifdef CONFIG_VIDEO_BPP32
  45         case VIDEO_BPP32: {
  46                 uint32_t *dst = line;
  47
  48                 for (i = 0; i < pixels; i++)
  49                         *dst++ = clr;
  50                 break;
  51         }
  52 #endif
  53         default:
  54                 return -ENOSYS;
  55         }
  56
  57         return 0;
  58 }
  59
  60 static int console_normal_move_rows(struct udevice *dev, uint rowdst,
  61                                      uint rowsrc, uint count)
  62 {
  63         struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
  64         void *dst;
  65         void *src;
  66
  67         dst = vid_priv->fb + rowdst * VIDEO_FONT_HEIGHT * vid_priv->line_length;
  68         src = vid_priv->fb + rowsrc * VIDEO_FONT_HEIGHT * vid_priv->line_length;
  69         memmove(dst, src, VIDEO_FONT_HEIGHT * vid_priv->line_length * count);
  70
  71         return 0;
  72 }
  73
  74 static int console_normal_putc_xy(struct udevice *dev, uint x, uint y, char ch)
  75 {
  76         struct udevice *vid = dev->parent;
  77         struct video_priv *vid_priv = dev_get_uclass_priv(vid);
  78         int i, row;
  79         void *line = vid_priv->fb + y * vid_priv->line_length +
  80                 x * VNBYTES(vid_priv->bpix);
  81
  82         for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
  83                 uchar bits = video_fontdata[ch * VIDEO_FONT_HEIGHT + row];
  84
  85                 switch (vid_priv->bpix) {
  86 #ifdef CONFIG_VIDEO_BPP8
  87                 case VIDEO_BPP8: {
  88                         uint8_t *dst = line;
  89
  90                         for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
  91                                 *dst++ = (bits & 0x80) ? vid_priv->colour_fg
  92                                         : vid_priv->colour_bg;
  93                                 bits <<= 1;
  94                         }
  95                         break;
  96                 }
  97 #endif
  98 #ifdef CONFIG_VIDEO_BPP16
  99                 case VIDEO_BPP16: {
 100                         uint16_t *dst = line;
 101
 102                         for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
 103                                 *dst++ = (bits & 0x80) ? vid_priv->colour_fg
 104                                         : vid_priv->colour_bg;
 105                                 bits <<= 1;
 106                         }
 107                         break;
 108                 }
 109 #endif
 110 #ifdef CONFIG_VIDEO_BPP32
 111                 case VIDEO_BPP32: {
 112                         uint32_t *dst = line;
 113
 114                         for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
 115                                 *dst++ = (bits & 0x80) ? vid_priv->colour_fg
 116                                         : vid_priv->colour_bg;
 117                                 bits <<= 1;
 118                         }
 119                         break;
 120                 }
 121 #endif
 122                 default:
 123                         return -ENOSYS;
 124                 }
 125                 line += vid_priv->line_length;
 126         }
 127
 128         return 0;
 129 }
 130
 131 struct vidconsole_ops console_normal_ops = {
 132         .putc_xy        = console_normal_putc_xy,
 133         .move_rows      = console_normal_move_rows,
 134         .set_row        = console_normal_set_row,
 135 };
 136
 137 U_BOOT_DRIVER(vidconsole_normal) = {
 138         .name   = "vidconsole0",
 139         .id     = UCLASS_VIDEO_CONSOLE,
 140         .ops    = &console_normal_ops,
 141 };