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![Hannes Petermaier](/assets/img/avatar_default.png)
Sometimes, for example if the display is mounted in portrait mode or even if it is mounted landscape but rotated by 180 degrees, we need to rotate our content of the display respectively the framebuffer, so that user can read the messages which are printed out. For this we introduce the feature called "CONFIG_LCD_ROTATION", this may be defined in the board-configuration if needed. After this the lcd_console will be initialized with a given rotation from "vl_rot" out of "vidinfo_t" which is provided by the board specific code. If CONFIG_LCD_ROTATION is not defined, the console will be initialized with 0 degrees rotation. Signed-off-by: Hannes Petermaier <hannes.petermaier@br-automation.com> Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at> Acked-by: Nikita Kiryanov <nikita@compulab.co.il> [agust: fixed 'struct vidinfo' has no member named 'vl_rot' errors] Signed-off-by: Anatolij Gustschin <agust@denx.de>
260 lines
5.1 KiB
C
260 lines
5.1 KiB
C
/*
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* (C) Copyright 2001-2015
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* DENX Software Engineering -- wd@denx.de
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* Compulab Ltd - http://compulab.co.il/
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* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <lcd.h>
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#include <video_font.h> /* Get font data, width and height */
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#if defined(CONFIG_LCD_LOGO)
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#include <bmp_logo.h>
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#endif
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static struct console_t cons;
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void lcd_set_col(short col)
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{
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cons.curr_col = col;
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}
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void lcd_set_row(short row)
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{
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cons.curr_row = row;
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}
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void lcd_position_cursor(unsigned col, unsigned row)
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{
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cons.curr_col = min_t(short, col, cons.cols - 1);
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cons.curr_row = min_t(short, row, cons.rows - 1);
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}
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int lcd_get_screen_rows(void)
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{
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return cons.rows;
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}
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int lcd_get_screen_columns(void)
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{
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return cons.cols;
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}
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static void lcd_putc_xy0(struct console_t *pcons, ushort x, ushort y, char c)
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{
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int fg_color = lcd_getfgcolor();
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int bg_color = lcd_getbgcolor();
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int i, row;
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fbptr_t *dst = (fbptr_t *)pcons->fbbase +
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y * pcons->lcdsizex +
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x;
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for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
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uchar bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
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for (i = 0; i < VIDEO_FONT_WIDTH; ++i) {
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*dst++ = (bits & 0x80) ? fg_color : bg_color;
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bits <<= 1;
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}
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dst += (pcons->lcdsizex - VIDEO_FONT_WIDTH);
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}
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}
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static inline void console_setrow0(struct console_t *pcons, u32 row, int clr)
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{
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int i;
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fbptr_t *dst = (fbptr_t *)pcons->fbbase +
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row * VIDEO_FONT_HEIGHT *
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pcons->lcdsizex;
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for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
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*dst++ = clr;
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}
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static inline void console_moverow0(struct console_t *pcons,
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u32 rowdst, u32 rowsrc)
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{
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int i;
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fbptr_t *dst = (fbptr_t *)pcons->fbbase +
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rowdst * VIDEO_FONT_HEIGHT *
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pcons->lcdsizex;
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fbptr_t *src = (fbptr_t *)pcons->fbbase +
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rowsrc * VIDEO_FONT_HEIGHT *
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pcons->lcdsizex;
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for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
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*dst++ = *src++;
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}
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static inline void console_back(void)
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{
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if (--cons.curr_col < 0) {
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cons.curr_col = cons.cols - 1;
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if (--cons.curr_row < 0)
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cons.curr_row = 0;
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}
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cons.fp_putc_xy(&cons,
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cons.curr_col * VIDEO_FONT_WIDTH,
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cons.curr_row * VIDEO_FONT_HEIGHT, ' ');
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}
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static inline void console_newline(void)
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{
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const int rows = CONFIG_CONSOLE_SCROLL_LINES;
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int bg_color = lcd_getbgcolor();
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int i;
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cons.curr_col = 0;
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/* Check if we need to scroll the terminal */
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if (++cons.curr_row >= cons.rows) {
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for (i = 0; i < cons.rows-rows; i++)
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cons.fp_console_moverow(&cons, i, i+rows);
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for (i = 0; i < rows; i++)
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cons.fp_console_setrow(&cons, cons.rows-i-1, bg_color);
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cons.curr_row -= rows;
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}
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lcd_sync();
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}
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void console_calc_rowcol(struct console_t *pcons, u32 sizex, u32 sizey)
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{
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pcons->cols = sizex / VIDEO_FONT_WIDTH;
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#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
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pcons->rows = (pcons->lcdsizey - BMP_LOGO_HEIGHT);
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pcons->rows /= VIDEO_FONT_HEIGHT;
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#else
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pcons->rows = sizey / VIDEO_FONT_HEIGHT;
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#endif
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}
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void __weak lcd_init_console_rot(struct console_t *pcons)
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{
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return;
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}
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void lcd_init_console(void *address, int vl_cols, int vl_rows, int vl_rot)
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{
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memset(&cons, 0, sizeof(cons));
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cons.fbbase = address;
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cons.lcdsizex = vl_cols;
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cons.lcdsizey = vl_rows;
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cons.lcdrot = vl_rot;
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cons.fp_putc_xy = &lcd_putc_xy0;
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cons.fp_console_moverow = &console_moverow0;
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cons.fp_console_setrow = &console_setrow0;
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console_calc_rowcol(&cons, cons.lcdsizex, cons.lcdsizey);
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lcd_init_console_rot(&cons);
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debug("lcd_console: have %d/%d col/rws on scr %dx%d (%d deg rotated)\n",
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cons.cols, cons.rows, cons.lcdsizex, cons.lcdsizey, vl_rot);
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}
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void lcd_putc(const char c)
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{
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if (!lcd_is_enabled) {
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serial_putc(c);
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return;
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}
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switch (c) {
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case '\r':
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cons.curr_col = 0;
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return;
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case '\n':
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console_newline();
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return;
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case '\t': /* Tab (8 chars alignment) */
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cons.curr_col += 8;
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cons.curr_col &= ~7;
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if (cons.curr_col >= cons.cols)
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console_newline();
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return;
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case '\b':
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console_back();
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return;
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default:
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cons.fp_putc_xy(&cons,
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cons.curr_col * VIDEO_FONT_WIDTH,
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cons.curr_row * VIDEO_FONT_HEIGHT, c);
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if (++cons.curr_col >= cons.cols)
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console_newline();
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}
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}
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void lcd_puts(const char *s)
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{
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if (!lcd_is_enabled) {
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serial_puts(s);
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return;
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}
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while (*s)
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lcd_putc(*s++);
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lcd_sync();
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}
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void lcd_printf(const char *fmt, ...)
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{
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va_list args;
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char buf[CONFIG_SYS_PBSIZE];
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va_start(args, fmt);
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vsprintf(buf, fmt, args);
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va_end(args);
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lcd_puts(buf);
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}
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static int do_lcd_setcursor(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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unsigned int col, row;
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if (argc != 3)
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return CMD_RET_USAGE;
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col = simple_strtoul(argv[1], NULL, 10);
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row = simple_strtoul(argv[2], NULL, 10);
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lcd_position_cursor(col, row);
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return 0;
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}
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static int do_lcd_puts(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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if (argc != 2)
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return CMD_RET_USAGE;
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lcd_puts(argv[1]);
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return 0;
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}
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U_BOOT_CMD(
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setcurs, 3, 1, do_lcd_setcursor,
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"set cursor position within screen",
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" <col> <row> in character"
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);
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U_BOOT_CMD(
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lcdputs, 2, 1, do_lcd_puts,
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"print string on lcd-framebuffer",
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" <string>"
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);
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