drivers/video/console_normal.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2015 Google, Inc
   4  * (C) Copyright 2001-2015
   5  * DENX Software Engineering -- wd@denx.de
   6  * Compulab Ltd - http://compulab.co.il/
   7  * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
   8  */
   9
  10 #include <common.h>
  11 #include <dm.h>
  12 #include <video.h>
  13 #include <video_console.h>
  14 #include <video_font.h>         /* Get font data, width and height */
  15
  16 static int console_normal_set_row(struct udevice *dev, uint row, int clr)
  17 {
  18         struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
  19         void *line;
  20         int pixels = VIDEO_FONT_HEIGHT * vid_priv->xsize;
  21         int i;
  22
  23         line = vid_priv->fb + row * VIDEO_FONT_HEIGHT * vid_priv->line_length;
  24         switch (vid_priv->bpix) {
  25 #ifdef CONFIG_VIDEO_BPP8
  26         case VIDEO_BPP8: {
  27                 uint8_t *dst = line;
  28
  29                 for (i = 0; i < pixels; i++)
  30                         *dst++ = clr;
  31                 break;
  32         }
  33 #endif
  34 #ifdef CONFIG_VIDEO_BPP16
  35         case VIDEO_BPP16: {
  36                 uint16_t *dst = line;
  37
  38                 for (i = 0; i < pixels; i++)
  39                         *dst++ = clr;
  40                 break;
  41         }
  42 #endif
  43 #ifdef CONFIG_VIDEO_BPP32
  44         case VIDEO_BPP32: {
  45                 uint32_t *dst = line;
  46
  47                 for (i = 0; i < pixels; i++)
  48                         *dst++ = clr;
  49                 break;
  50         }
  51 #endif
  52         default:
  53                 return -ENOSYS;
  54         }
  55
  56         return 0;
  57 }
  58
  59 static int console_normal_move_rows(struct udevice *dev, uint rowdst,
  60                                      uint rowsrc, uint count)
  61 {
  62         struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
  63         void *dst;
  64         void *src;
  65
  66         dst = vid_priv->fb + rowdst * VIDEO_FONT_HEIGHT * vid_priv->line_length;
  67         src = vid_priv->fb + rowsrc * VIDEO_FONT_HEIGHT * vid_priv->line_length;
  68         memmove(dst, src, VIDEO_FONT_HEIGHT * vid_priv->line_length * count);
  69
  70         return 0;
  71 }
  72
  73 static int console_normal_putc_xy(struct udevice *dev, uint x_frac, uint y,
  74                                   char ch)
  75 {
  76         struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
  77         struct udevice *vid = dev->parent;
  78         struct video_priv *vid_priv = dev_get_uclass_priv(vid);
  79         int i, row;
  80         void *line = vid_priv->fb + y * vid_priv->line_length +
  81                 VID_TO_PIXEL(x_frac) * VNBYTES(vid_priv->bpix);
  82
  83         if (x_frac + VID_TO_POS(vc_priv->x_charsize) > vc_priv->xsize_frac)
  84                 return -EAGAIN;
  85
  86         for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
  87                 unsigned int idx = (u8)ch * VIDEO_FONT_HEIGHT + row;
  88                 uchar bits = video_fontdata[idx];
  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 };