common/lcd_console.c

   1 /*
   2  * (C) Copyright 2001-2015
   3  * DENX Software Engineering -- wd@denx.de
   4  * Compulab Ltd - http://compulab.co.il/
   5  * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <common.h>
  11 #include <lcd.h>
  12 #include <video_font.h>         /* Get font data, width and height */
  13 #if defined(CONFIG_LCD_LOGO)
  14 #include <bmp_logo.h>
  15 #endif
  16
  17 static struct console_t cons;
  18
  19 void lcd_set_col(short col)
  20 {
  21         cons.curr_col = col;
  22 }
  23
  24 void lcd_set_row(short row)
  25 {
  26         cons.curr_row = row;
  27 }
  28
  29 void lcd_position_cursor(unsigned col, unsigned row)
  30 {
  31         cons.curr_col = min_t(short, col, cons.cols - 1);
  32         cons.curr_row = min_t(short, row, cons.rows - 1);
  33 }
  34
  35 int lcd_get_screen_rows(void)
  36 {
  37         return cons.rows;
  38 }
  39
  40 int lcd_get_screen_columns(void)
  41 {
  42         return cons.cols;
  43 }
  44
  45 static void lcd_putc_xy0(struct console_t *pcons, ushort x, ushort y, char c)
  46 {
  47         int fg_color = lcd_getfgcolor();
  48         int bg_color = lcd_getbgcolor();
  49         int i, row;
  50         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  51                                   y * pcons->lcdsizex +
  52                                   x;
  53
  54         for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
  55                 uchar bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
  56                 for (i = 0; i < VIDEO_FONT_WIDTH; ++i) {
  57                         *dst++ = (bits & 0x80) ? fg_color : bg_color;
  58                         bits <<= 1;
  59                 }
  60                 dst += (pcons->lcdsizex - VIDEO_FONT_WIDTH);
  61         }
  62 }
  63
  64 static inline void console_setrow0(struct console_t *pcons, u32 row, int clr)
  65 {
  66         int i;
  67         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  68                                   row * VIDEO_FONT_HEIGHT *
  69                                   pcons->lcdsizex;
  70
  71         for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
  72                 *dst++ = clr;
  73 }
  74
  75 static inline void console_moverow0(struct console_t *pcons,
  76                                     u32 rowdst, u32 rowsrc)
  77 {
  78         int i;
  79         fbptr_t *dst = (fbptr_t *)pcons->fbbase +
  80                                   rowdst * VIDEO_FONT_HEIGHT *
  81                                   pcons->lcdsizex;
  82
  83         fbptr_t *src = (fbptr_t *)pcons->fbbase +
  84                                   rowsrc * VIDEO_FONT_HEIGHT *
  85                                   pcons->lcdsizex;
  86
  87         for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
  88                 *dst++ = *src++;
  89 }
  90
  91 static inline void console_back(void)
  92 {
  93         if (--cons.curr_col < 0) {
  94                 cons.curr_col = cons.cols - 1;
  95                 if (--cons.curr_row < 0)
  96                         cons.curr_row = 0;
  97         }
  98
  99         cons.fp_putc_xy(&cons,
 100                         cons.curr_col * VIDEO_FONT_WIDTH,
 101                         cons.curr_row * VIDEO_FONT_HEIGHT, ' ');
 102 }
 103
 104 static inline void console_newline(void)
 105 {
 106         const int rows = CONFIG_CONSOLE_SCROLL_LINES;
 107         int bg_color = lcd_getbgcolor();
 108         int i;
 109
 110         cons.curr_col = 0;
 111
 112         /* Check if we need to scroll the terminal */
 113         if (++cons.curr_row >= cons.rows) {
 114                 for (i = 0; i < cons.rows-rows; i++)
 115                         cons.fp_console_moverow(&cons, i, i+rows);
 116                 for (i = 0; i < rows; i++)
 117                         cons.fp_console_setrow(&cons, cons.rows-i-1, bg_color);
 118                 cons.curr_row -= rows;
 119         }
 120         lcd_sync();
 121 }
 122
 123 void console_calc_rowcol(struct console_t *pcons, u32 sizex, u32 sizey)
 124 {
 125         pcons->cols = sizex / VIDEO_FONT_WIDTH;
 126 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 127         pcons->rows = (pcons->lcdsizey - BMP_LOGO_HEIGHT);
 128         pcons->rows /= VIDEO_FONT_HEIGHT;
 129 #else
 130         pcons->rows = sizey / VIDEO_FONT_HEIGHT;
 131 #endif
 132 }
 133
 134 void __weak lcd_init_console_rot(struct console_t *pcons)
 135 {
 136         return;
 137 }
 138
 139 void lcd_init_console(void *address, int vl_cols, int vl_rows, int vl_rot)
 140 {
 141         memset(&cons, 0, sizeof(cons));
 142         cons.fbbase = address;
 143
 144         cons.lcdsizex = vl_cols;
 145         cons.lcdsizey = vl_rows;
 146         cons.lcdrot = vl_rot;
 147
 148         cons.fp_putc_xy = &lcd_putc_xy0;
 149         cons.fp_console_moverow = &console_moverow0;
 150         cons.fp_console_setrow = &console_setrow0;
 151         console_calc_rowcol(&cons, cons.lcdsizex, cons.lcdsizey);
 152
 153         lcd_init_console_rot(&cons);
 154
 155         debug("lcd_console: have %d/%d col/rws on scr %dx%d (%d deg rotated)\n",
 156               cons.cols, cons.rows, cons.lcdsizex, cons.lcdsizey, vl_rot);
 157 }
 158
 159 void lcd_putc(const char c)
 160 {
 161         if (!lcd_is_enabled) {
 162                 serial_putc(c);
 163
 164                 return;
 165         }
 166
 167         switch (c) {
 168         case '\r':
 169                 cons.curr_col = 0;
 170                 return;
 171         case '\n':
 172                 console_newline();
 173
 174                 return;
 175         case '\t':      /* Tab (8 chars alignment) */
 176                 cons.curr_col +=  8;
 177                 cons.curr_col &= ~7;
 178
 179                 if (cons.curr_col >= cons.cols)
 180                         console_newline();
 181
 182                 return;
 183         case '\b':
 184                 console_back();
 185
 186                 return;
 187         default:
 188                 cons.fp_putc_xy(&cons,
 189                                 cons.curr_col * VIDEO_FONT_WIDTH,
 190                                 cons.curr_row * VIDEO_FONT_HEIGHT, c);
 191                 if (++cons.curr_col >= cons.cols)
 192                         console_newline();
 193         }
 194 }
 195
 196 void lcd_puts(const char *s)
 197 {
 198         if (!lcd_is_enabled) {
 199                 serial_puts(s);
 200
 201                 return;
 202         }
 203
 204         while (*s)
 205                 lcd_putc(*s++);
 206
 207         lcd_sync();
 208 }
 209
 210 void lcd_printf(const char *fmt, ...)
 211 {
 212         va_list args;
 213         char buf[CONFIG_SYS_PBSIZE];
 214
 215         va_start(args, fmt);
 216         vsprintf(buf, fmt, args);
 217         va_end(args);
 218
 219         lcd_puts(buf);
 220 }
 221
 222 static int do_lcd_setcursor(cmd_tbl_t *cmdtp, int flag, int argc,
 223                             char *const argv[])
 224 {
 225         unsigned int col, row;
 226
 227         if (argc != 3)
 228                 return CMD_RET_USAGE;
 229
 230         col = simple_strtoul(argv[1], NULL, 10);
 231         row = simple_strtoul(argv[2], NULL, 10);
 232         lcd_position_cursor(col, row);
 233
 234         return 0;
 235 }
 236
 237 static int do_lcd_puts(cmd_tbl_t *cmdtp, int flag, int argc,
 238                        char *const argv[])
 239 {
 240         if (argc != 2)
 241                 return CMD_RET_USAGE;
 242
 243         lcd_puts(argv[1]);
 244
 245         return 0;
 246 }
 247
 248 U_BOOT_CMD(
 249         setcurs, 3,     1,      do_lcd_setcursor,
 250         "set cursor position within screen",
 251         "    <col> <row> in character"
 252 );
 253
 254 U_BOOT_CMD(
 255         lcdputs, 2,     1,      do_lcd_puts,
 256         "print string on lcd-framebuffer",
 257         "    <string>"
 258 );
 259