common/lcd_console_rotation.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2015
   4  * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
   5  */
   6
   7 #include <common.h>
   8 #include <lcd.h>
   9 #include <video_font.h>         /* Get font data, width and height */
  10
  11 static void lcd_putc_xy90(struct console_t *pcons, ushort x, ushort y, char c)
  12 {
  13         int fg_color = lcd_getfgcolor();
  14         int bg_color = lcd_getbgcolor();
  15         int col, i;
  16
  17         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  18                                   (x+1) * pcons->lcdsizex -
  19                                   y;
  20
  21         uchar msk = 0x80;
  22         uchar *pfont = video_fontdata + c * VIDEO_FONT_HEIGHT;
  23         for (col = 0; col < VIDEO_FONT_WIDTH; ++col) {
  24                 for (i = 0; i < VIDEO_FONT_HEIGHT; ++i)
  25                         *dst-- = (*(pfont + i) & msk) ? fg_color : bg_color;
  26                 msk >>= 1;
  27                 dst += (pcons->lcdsizex + VIDEO_FONT_HEIGHT);
  28         }
  29 }
  30
  31 static inline void console_setrow90(struct console_t *pcons, u32 row, int clr)
  32 {
  33         int i, j;
  34         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  35                                   pcons->lcdsizex -
  36                                   row*VIDEO_FONT_HEIGHT+1;
  37
  38         for (j = 0; j < pcons->lcdsizey; j++) {
  39                 for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
  40                         *dst-- = clr;
  41                 dst += (pcons->lcdsizex + VIDEO_FONT_HEIGHT);
  42         }
  43 }
  44
  45 static inline void console_moverow90(struct console_t *pcons,
  46                                       u32 rowdst, u32 rowsrc)
  47 {
  48         int i, j;
  49         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  50                                   pcons->lcdsizex -
  51                                   (rowdst*VIDEO_FONT_HEIGHT+1);
  52
  53         fbptr_t *src = (fbptr_t *)pcons->fbbase +
  54                                   pcons->lcdsizex -
  55                                   (rowsrc*VIDEO_FONT_HEIGHT+1);
  56
  57         for (j = 0; j < pcons->lcdsizey; j++) {
  58                 for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
  59                         *dst-- = *src--;
  60                 src += (pcons->lcdsizex + VIDEO_FONT_HEIGHT);
  61                 dst += (pcons->lcdsizex + VIDEO_FONT_HEIGHT);
  62         }
  63 }
  64 static void lcd_putc_xy180(struct console_t *pcons, ushort x, ushort y, char c)
  65 {
  66         int fg_color = lcd_getfgcolor();
  67         int bg_color = lcd_getbgcolor();
  68         int i, row;
  69         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  70                                   pcons->lcdsizex +
  71                                   pcons->lcdsizey * pcons->lcdsizex -
  72                                   y * pcons->lcdsizex -
  73                                   (x+1);
  74
  75         for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
  76                 uchar bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
  77
  78                 for (i = 0; i < VIDEO_FONT_WIDTH; ++i) {
  79                         *dst-- = (bits & 0x80) ? fg_color : bg_color;
  80                         bits <<= 1;
  81                 }
  82                 dst -= (pcons->lcdsizex - VIDEO_FONT_WIDTH);
  83         }
  84 }
  85
  86 static inline void console_setrow180(struct console_t *pcons, u32 row, int clr)
  87 {
  88         int i;
  89         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  90                                   (pcons->rows-row-1) * VIDEO_FONT_HEIGHT *
  91                                   pcons->lcdsizex;
  92
  93         for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
  94                 *dst++ = clr;
  95 }
  96
  97 static inline void console_moverow180(struct console_t *pcons,
  98                                       u32 rowdst, u32 rowsrc)
  99 {
 100         int i;
 101         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
 102                                   (pcons->rows-rowdst-1) * VIDEO_FONT_HEIGHT *
 103                                   pcons->lcdsizex;
 104
 105         fbptr_t *src = (fbptr_t *)pcons->fbbase +
 106                                   (pcons->rows-rowsrc-1) * VIDEO_FONT_HEIGHT *
 107                                   pcons->lcdsizex;
 108
 109         for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
 110                 *dst++ = *src++;
 111 }
 112
 113 static void lcd_putc_xy270(struct console_t *pcons, ushort x, ushort y, char c)
 114 {
 115         int fg_color = lcd_getfgcolor();
 116         int bg_color = lcd_getbgcolor();
 117         int i, col;
 118         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
 119                                   pcons->lcdsizey * pcons->lcdsizex -
 120                                   (x+1) * pcons->lcdsizex +
 121                                   y;
 122
 123         uchar msk = 0x80;
 124         uchar *pfont = video_fontdata + c * VIDEO_FONT_HEIGHT;
 125         for (col = 0; col < VIDEO_FONT_WIDTH; ++col) {
 126                 for (i = 0; i < VIDEO_FONT_HEIGHT; ++i)
 127                         *dst++ = (*(pfont + i) & msk) ? fg_color : bg_color;
 128                 msk >>= 1;
 129                 dst -= (pcons->lcdsizex + VIDEO_FONT_HEIGHT);
 130         }
 131 }
 132
 133 static inline void console_setrow270(struct console_t *pcons, u32 row, int clr)
 134 {
 135         int i, j;
 136         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
 137                                   row*VIDEO_FONT_HEIGHT;
 138
 139         for (j = 0; j < pcons->lcdsizey; j++) {
 140                 for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
 141                         *dst++ = clr;
 142                 dst += (pcons->lcdsizex - VIDEO_FONT_HEIGHT);
 143         }
 144 }
 145
 146 static inline void console_moverow270(struct console_t *pcons,
 147                                      u32 rowdst, u32 rowsrc)
 148 {
 149         int i, j;
 150         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
 151                                   rowdst*VIDEO_FONT_HEIGHT;
 152
 153         fbptr_t *src = (fbptr_t *)pcons->fbbase +
 154                                   rowsrc*VIDEO_FONT_HEIGHT;
 155
 156         for (j = 0; j < pcons->lcdsizey; j++) {
 157                 for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
 158                         *dst++ = *src++;
 159                 src += (pcons->lcdsizex - VIDEO_FONT_HEIGHT);
 160                 dst += (pcons->lcdsizex - VIDEO_FONT_HEIGHT);
 161         }
 162 }
 163
 164 static void console_calc_rowcol_rot(struct console_t *pcons)
 165 {
 166         if (pcons->lcdrot == 1 || pcons->lcdrot == 3)
 167                 console_calc_rowcol(pcons, pcons->lcdsizey, pcons->lcdsizex);
 168         else
 169                 console_calc_rowcol(pcons, pcons->lcdsizex, pcons->lcdsizey);
 170 }
 171
 172 void lcd_init_console_rot(struct console_t *pcons)
 173 {
 174         if (pcons->lcdrot == 0) {
 175                 return;
 176         } else if (pcons->lcdrot == 1) {
 177                 pcons->fp_putc_xy = &lcd_putc_xy90;
 178                 pcons->fp_console_moverow = &console_moverow90;
 179                 pcons->fp_console_setrow = &console_setrow90;
 180         } else if (pcons->lcdrot == 2) {
 181                 pcons->fp_putc_xy = &lcd_putc_xy180;
 182                 pcons->fp_console_moverow = &console_moverow180;
 183                 pcons->fp_console_setrow = &console_setrow180;
 184         } else if (pcons->lcdrot == 3) {
 185                 pcons->fp_putc_xy = &lcd_putc_xy270;
 186                 pcons->fp_console_moverow = &console_moverow270;
 187                 pcons->fp_console_setrow = &console_setrow270;
 188         } else {
 189                 printf("%s: invalid framebuffer rotation (%d)!\n",
 190                        __func__, pcons->lcdrot);
 191                 return;
 192         }
 193         console_calc_rowcol_rot(pcons);
 194 }