lcd_console.c 5.1 KB

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