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->xsize;
  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_frac, uint y,
  75                                   char ch)
  76 {
  77         struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
  78         struct udevice *vid = dev->parent;
  79         struct video_priv *vid_priv = dev_get_uclass_priv(vid);
  80         int i, row;
  81         void *line = vid_priv->fb + y * vid_priv->line_length +
  82                 VID_TO_PIXEL(x_frac) * VNBYTES(vid_priv->bpix);
  83
  84         if (x_frac + VID_TO_POS(vc_priv->x_charsize) > vc_priv->xsize_frac)
  85                 return -EAGAIN;
  86
  87         for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
  88                 uchar bits = video_fontdata[ch * VIDEO_FONT_HEIGHT + row];
  89
  90                 switch (vid_priv->bpix) {
  91 #ifdef CONFIG_VIDEO_BPP8
  92                 case VIDEO_BPP8: {
  93                         uint8_t *dst = line;
  94
  95                         for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
  96                                 *dst++ = (bits & 0x80) ? vid_priv->colour_fg
  97                                         : vid_priv->colour_bg;
  98                                 bits <<= 1;
  99                         }
 100                         break;
 101                 }
 102 #endif
 103 #ifdef CONFIG_VIDEO_BPP16
 104                 case VIDEO_BPP16: {
 105                         uint16_t *dst = line;
 106
 107                         for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
 108                                 *dst++ = (bits & 0x80) ? vid_priv->colour_fg
 109                                         : vid_priv->colour_bg;
 110                                 bits <<= 1;
 111                         }
 112                         break;
 113                 }
 114 #endif
 115 #ifdef CONFIG_VIDEO_BPP32
 116                 case VIDEO_BPP32: {
 117                         uint32_t *dst = line;
 118
 119                         for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
 120                                 *dst++ = (bits & 0x80) ? vid_priv->colour_fg
 121                                         : vid_priv->colour_bg;
 122                                 bits <<= 1;
 123                         }
 124                         break;
 125                 }
 126 #endif
 127                 default:
 128                         return -ENOSYS;
 129                 }
 130                 line += vid_priv->line_length;
 131         }
 132
 133         return VID_TO_POS(VIDEO_FONT_WIDTH);
 134 }
 135
 136 static int console_normal_probe(struct udevice *dev)
 137 {
 138         struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
 139         struct udevice *vid_dev = dev->parent;
 140         struct video_priv *vid_priv = dev_get_uclass_priv(vid_dev);
 141
 142         vc_priv->x_charsize = VIDEO_FONT_WIDTH;
 143         vc_priv->y_charsize = VIDEO_FONT_HEIGHT;
 144         vc_priv->cols = vid_priv->xsize / VIDEO_FONT_WIDTH;
 145         vc_priv->rows = vid_priv->ysize / VIDEO_FONT_HEIGHT;
 146
 147         return 0;
 148 }
 149
 150 struct vidconsole_ops console_normal_ops = {
 151         .putc_xy        = console_normal_putc_xy,
 152         .move_rows      = console_normal_move_rows,
 153         .set_row        = console_normal_set_row,
 154 };
 155
 156 U_BOOT_DRIVER(vidconsole_normal) = {
 157         .name   = "vidconsole0",
 158         .id     = UCLASS_VIDEO_CONSOLE,
 159         .ops    = &console_normal_ops,
 160         .probe  = console_normal_probe,
 161 };