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common/lcd_console.c
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// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* (C) Copyright 2001-2015 |
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* DENX Software Engineering -- wd@denx.de * Compulab Ltd - http://compulab.co.il/ |
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* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com |
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*/ #include <common.h> #include <lcd.h> #include <video_font.h> /* Get font data, width and height */ |
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#if defined(CONFIG_LCD_LOGO) #include <bmp_logo.h> #endif |
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static struct console_t cons; |
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void lcd_set_col(short col) { |
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cons.curr_col = col; |
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} void lcd_set_row(short row) { |
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cons.curr_row = row; |
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} void lcd_position_cursor(unsigned col, unsigned row) { |
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cons.curr_col = min_t(short, col, cons.cols - 1); cons.curr_row = min_t(short, row, cons.rows - 1); |
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} int lcd_get_screen_rows(void) { |
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return cons.rows; |
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} int lcd_get_screen_columns(void) { |
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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(); int bg_color = lcd_getbgcolor(); |
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int i, row; fbptr_t *dst = (fbptr_t *)pcons->fbbase + y * pcons->lcdsizex + x; for (row = 0; row < VIDEO_FONT_HEIGHT; row++) { uchar bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; for (i = 0; i < VIDEO_FONT_WIDTH; ++i) { *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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static inline void console_setrow0(struct console_t *pcons, u32 row, int clr) |
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{ |
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int i; fbptr_t *dst = (fbptr_t *)pcons->fbbase + row * VIDEO_FONT_HEIGHT * pcons->lcdsizex; |
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for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++) *dst++ = clr; } |
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static inline void console_moverow0(struct console_t *pcons, u32 rowdst, u32 rowsrc) { int i; fbptr_t *dst = (fbptr_t *)pcons->fbbase + rowdst * VIDEO_FONT_HEIGHT * pcons->lcdsizex; fbptr_t *src = (fbptr_t *)pcons->fbbase + rowsrc * VIDEO_FONT_HEIGHT * pcons->lcdsizex; for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++) *dst++ = *src++; |
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} static inline void console_back(void) { |
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if (--cons.curr_col < 0) { cons.curr_col = cons.cols - 1; if (--cons.curr_row < 0) cons.curr_row = 0; |
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} |
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cons.fp_putc_xy(&cons, cons.curr_col * VIDEO_FONT_WIDTH, cons.curr_row * VIDEO_FONT_HEIGHT, ' '); |
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} static inline void console_newline(void) { |
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const int rows = CONFIG_CONSOLE_SCROLL_LINES; int bg_color = lcd_getbgcolor(); 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) { for (i = 0; i < cons.rows-rows; i++) cons.fp_console_moverow(&cons, i, i+rows); for (i = 0; i < rows; i++) cons.fp_console_setrow(&cons, cons.rows-i-1, bg_color); cons.curr_row -= rows; } lcd_sync(); } void console_calc_rowcol(struct console_t *pcons, u32 sizex, u32 sizey) { pcons->cols = sizex / VIDEO_FONT_WIDTH; #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) pcons->rows = (pcons->lcdsizey - BMP_LOGO_HEIGHT); pcons->rows /= VIDEO_FONT_HEIGHT; #else pcons->rows = sizey / VIDEO_FONT_HEIGHT; #endif } void __weak lcd_init_console_rot(struct console_t *pcons) { return; } void lcd_init_console(void *address, int vl_cols, int vl_rows, int vl_rot) { memset(&cons, 0, sizeof(cons)); cons.fbbase = address; cons.lcdsizex = vl_cols; cons.lcdsizey = vl_rows; cons.lcdrot = vl_rot; cons.fp_putc_xy = &lcd_putc_xy0; cons.fp_console_moverow = &console_moverow0; cons.fp_console_setrow = &console_setrow0; console_calc_rowcol(&cons, cons.lcdsizex, cons.lcdsizey); lcd_init_console_rot(&cons); debug("lcd_console: have %d/%d col/rws on scr %dx%d (%d deg rotated) ", cons.cols, cons.rows, cons.lcdsizex, cons.lcdsizey, vl_rot); |
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} void lcd_putc(const char c) { if (!lcd_is_enabled) { serial_putc(c); return; } switch (c) { case '\r': |
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cons.curr_col = 0; |
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return; case ' ': console_newline(); return; case '\t': /* Tab (8 chars alignment) */ |
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cons.curr_col += 8; cons.curr_col &= ~7; |
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if (cons.curr_col >= cons.cols) |
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console_newline(); return; case '\b': console_back(); return; default: |
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cons.fp_putc_xy(&cons, cons.curr_col * VIDEO_FONT_WIDTH, cons.curr_row * VIDEO_FONT_HEIGHT, c); |
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if (++cons.curr_col >= cons.cols) |
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console_newline(); } } void lcd_puts(const char *s) { if (!lcd_is_enabled) { serial_puts(s); return; } while (*s) lcd_putc(*s++); lcd_sync(); } void lcd_printf(const char *fmt, ...) { va_list args; char buf[CONFIG_SYS_PBSIZE]; va_start(args, fmt); vsprintf(buf, fmt, args); va_end(args); lcd_puts(buf); } |
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static int do_lcd_setcursor(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) { unsigned int col, row; if (argc != 3) return CMD_RET_USAGE; col = simple_strtoul(argv[1], NULL, 10); row = simple_strtoul(argv[2], NULL, 10); lcd_position_cursor(col, row); return 0; } |
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static int do_lcd_puts(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) { if (argc != 2) return CMD_RET_USAGE; lcd_puts(argv[1]); return 0; } |
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U_BOOT_CMD( setcurs, 3, 1, do_lcd_setcursor, "set cursor position within screen", " <col> <row> in character" ); |
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U_BOOT_CMD( lcdputs, 2, 1, do_lcd_puts, "print string on lcd-framebuffer", " <string>" ); |