common/lcd_console.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   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
   9 #include <common.h>
  10 #include <lcd.h>
  11 #include <video_font.h>         /* Get font data, width and height */
  12 #if defined(CONFIG_LCD_LOGO)
  13 #include <bmp_logo.h>
  14 #endif
  15
  16 static struct console_t cons;
  17
  18 void lcd_set_col(short col)
  19 {
  20         cons.curr_col = col;
  21 }
  22
  23 void lcd_set_row(short row)
  24 {
  25         cons.curr_row = row;
  26 }
  27
  28 void lcd_position_cursor(unsigned col, unsigned row)
  29 {
  30         cons.curr_col = min_t(short, col, cons.cols - 1);
  31         cons.curr_row = min_t(short, row, cons.rows - 1);
  32 }
  33
  34 int lcd_get_screen_rows(void)
  35 {
  36         return cons.rows;
  37 }
  38
  39 int lcd_get_screen_columns(void)
  40 {
  41         return cons.cols;
  42 }
  43
  44 static void lcd_putc_xy0(struct console_t *pcons, ushort x, ushort y, char c)
  45 {
  46         int fg_color = lcd_getfgcolor();
  47         int bg_color = lcd_getbgcolor();
  48         int i, row;
  49         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  50                                   y * pcons->lcdsizex +
  51                                   x;
  52
  53         for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
  54                 uchar bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
  55                 for (i = 0; i < VIDEO_FONT_WIDTH; ++i) {
  56                         *dst++ = (bits & 0x80) ? fg_color : bg_color;
  57                         bits <<= 1;
  58                 }
  59                 dst += (pcons->lcdsizex - VIDEO_FONT_WIDTH);
  60         }
  61 }
  62
  63 static inline void console_setrow0(struct console_t *pcons, u32 row, int clr)
  64 {
  65         int i;
  66         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  67                                   row * VIDEO_FONT_HEIGHT *
  68                                   pcons->lcdsizex;
  69
  70         for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
  71                 *dst++ = clr;
  72 }
  73
  74 static inline void console_moverow0(struct console_t *pcons,
  75                                     u32 rowdst, u32 rowsrc)
  76 {
  77         int i;
  78         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  79                                   rowdst * VIDEO_FONT_HEIGHT *
  80                                   pcons->lcdsizex;
  81
  82         fbptr_t *src = (fbptr_t *)pcons->fbbase +
  83                                   rowsrc * VIDEO_FONT_HEIGHT *
  84                                   pcons->lcdsizex;
  85
  86         for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
  87                 *dst++ = *src++;
  88 }
  89
  90 static inline void console_back(void)
  91 {
  92         if (--cons.curr_col < 0) {
  93                 cons.curr_col = cons.cols - 1;
  94                 if (--cons.curr_row < 0)
  95                         cons.curr_row = 0;
  96         }
  97
  98         cons.fp_putc_xy(&cons,
  99                         cons.curr_col * VIDEO_FONT_WIDTH,
 100                         cons.curr_row * VIDEO_FONT_HEIGHT, ' ');
 101 }
 102
 103 static inline void console_newline(void)
 104 {
 105         const int rows = CONFIG_CONSOLE_SCROLL_LINES;
 106         int bg_color = lcd_getbgcolor();
 107         int i;
 108
 109         cons.curr_col = 0;
 110
 111         /* Check if we need to scroll the terminal */
 112         if (++cons.curr_row >= cons.rows) {
 113                 for (i = 0; i < cons.rows-rows; i++)
 114                         cons.fp_console_moverow(&cons, i, i+rows);
 115                 for (i = 0; i < rows; i++)
 116                         cons.fp_console_setrow(&cons, cons.rows-i-1, bg_color);
 117                 cons.curr_row -= rows;
 118         }
 119         lcd_sync();
 120 }
 121
 122 void console_calc_rowcol(struct console_t *pcons, u32 sizex, u32 sizey)
 123 {
 124         pcons->cols = sizex / VIDEO_FONT_WIDTH;
 125 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 126         pcons->rows = (pcons->lcdsizey - BMP_LOGO_HEIGHT);
 127         pcons->rows /= VIDEO_FONT_HEIGHT;
 128 #else
 129         pcons->rows = sizey / VIDEO_FONT_HEIGHT;
 130 #endif
 131 }
 132
 133 void __weak lcd_init_console_rot(struct console_t *pcons)
 134 {
 135         return;
 136 }
 137
 138 void lcd_init_console(void *address, int vl_cols, int vl_rows, int vl_rot)
 139 {
 140         memset(&cons, 0, sizeof(cons));
 141         cons.fbbase = address;
 142
 143         cons.lcdsizex = vl_cols;
 144         cons.lcdsizey = vl_rows;
 145         cons.lcdrot = vl_rot;
 146
 147         cons.fp_putc_xy = &lcd_putc_xy0;
 148         cons.fp_console_moverow = &console_moverow0;
 149         cons.fp_console_setrow = &console_setrow0;
 150         console_calc_rowcol(&cons, cons.lcdsizex, cons.lcdsizey);
 151
 152         lcd_init_console_rot(&cons);
 153
 154         debug("lcd_console: have %d/%d col/rws on scr %dx%d (%d deg rotated)\n",
 155               cons.cols, cons.rows, cons.lcdsizex, cons.lcdsizey, vl_rot);
 156 }
 157
 158 void lcd_putc(const char c)
 159 {
 160         if (!lcd_is_enabled) {
 161                 serial_putc(c);
 162
 163                 return;
 164         }
 165
 166         switch (c) {
 167         case '\r':
 168                 cons.curr_col = 0;
 169                 return;
 170         case '\n':
 171                 console_newline();
 172
 173                 return;
 174         case '\t':      /* Tab (8 chars alignment) */
 175                 cons.curr_col +=  8;
 176                 cons.curr_col &= ~7;
 177
 178                 if (cons.curr_col >= cons.cols)
 179                         console_newline();
 180
 181                 return;
 182         case '\b':
 183                 console_back();
 184
 185                 return;
 186         default:
 187                 cons.fp_putc_xy(&cons,
 188                                 cons.curr_col * VIDEO_FONT_WIDTH,
 189                                 cons.curr_row * VIDEO_FONT_HEIGHT, c);
 190                 if (++cons.curr_col >= cons.cols)
 191                         console_newline();
 192         }
 193 }
 194
 195 void lcd_puts(const char *s)
 196 {
 197         if (!lcd_is_enabled) {
 198                 serial_puts(s);
 199
 200                 return;
 201         }
 202
 203         while (*s)
 204                 lcd_putc(*s++);
 205
 206         lcd_sync();
 207 }
 208
 209 void lcd_printf(const char *fmt, ...)
 210 {
 211         va_list args;
 212         char buf[CONFIG_SYS_PBSIZE];
 213
 214         va_start(args, fmt);
 215         vsprintf(buf, fmt, args);
 216         va_end(args);
 217
 218         lcd_puts(buf);
 219 }
 220
 221 static int do_lcd_setcursor(cmd_tbl_t *cmdtp, int flag, int argc,
 222                             char *const argv[])
 223 {
 224         unsigned int col, row;
 225
 226         if (argc != 3)
 227                 return CMD_RET_USAGE;
 228
 229         col = simple_strtoul(argv[1], NULL, 10);
 230         row = simple_strtoul(argv[2], NULL, 10);
 231         lcd_position_cursor(col, row);
 232
 233         return 0;
 234 }
 235
 236 static int do_lcd_puts(cmd_tbl_t *cmdtp, int flag, int argc,
 237                        char *const argv[])
 238 {
 239         if (argc != 2)
 240                 return CMD_RET_USAGE;
 241
 242         lcd_puts(argv[1]);
 243
 244         return 0;
 245 }
 246
 247 U_BOOT_CMD(
 248         setcurs, 3,     1,      do_lcd_setcursor,
 249         "set cursor position within screen",
 250         "    <col> <row> in character"
 251 );
 252
 253 U_BOOT_CMD(
 254         lcdputs, 2,     1,      do_lcd_puts,
 255         "print string on lcd-framebuffer",
 256         "    <string>"
 257 );
 258