Nikita Kiryanov | 904672e | 2014-12-08 17:14:45 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2001-2014 |
| 3 | * DENX Software Engineering -- wd@denx.de |
| 4 | * Compulab Ltd - http://compulab.co.il/ |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 7 | */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <lcd.h> |
| 11 | #include <video_font.h> /* Get font data, width and height */ |
| 12 | |
| 13 | #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) |
| 14 | #define CONSOLE_ROW_FIRST lcd_console_address |
Nikita Kiryanov | 904672e | 2014-12-08 17:14:45 +0200 | [diff] [blame] | 15 | #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * console_rows) |
Nikita Kiryanov | 904672e | 2014-12-08 17:14:45 +0200 | [diff] [blame] | 16 | |
| 17 | static short console_curr_col; |
| 18 | static short console_curr_row; |
| 19 | static short console_cols; |
| 20 | static short console_rows; |
| 21 | static void *lcd_console_address; |
| 22 | |
| 23 | void lcd_init_console(void *address, int rows, int cols) |
| 24 | { |
| 25 | console_curr_col = 0; |
| 26 | console_curr_row = 0; |
| 27 | console_cols = cols; |
| 28 | console_rows = rows; |
| 29 | lcd_console_address = address; |
| 30 | } |
| 31 | |
| 32 | void lcd_set_col(short col) |
| 33 | { |
| 34 | console_curr_col = col; |
| 35 | } |
| 36 | |
| 37 | void lcd_set_row(short row) |
| 38 | { |
| 39 | console_curr_row = row; |
| 40 | } |
| 41 | |
| 42 | void lcd_position_cursor(unsigned col, unsigned row) |
| 43 | { |
| 44 | console_curr_col = min_t(short, col, console_cols - 1); |
| 45 | console_curr_row = min_t(short, row, console_rows - 1); |
| 46 | } |
| 47 | |
| 48 | int lcd_get_screen_rows(void) |
| 49 | { |
| 50 | return console_rows; |
| 51 | } |
| 52 | |
| 53 | int lcd_get_screen_columns(void) |
| 54 | { |
| 55 | return console_cols; |
| 56 | } |
| 57 | |
| 58 | static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) |
| 59 | { |
| 60 | uchar *dest; |
| 61 | ushort row; |
| 62 | int fg_color, bg_color; |
| 63 | |
| 64 | dest = (uchar *)(lcd_console_address + |
| 65 | y * lcd_line_length + x * NBITS(LCD_BPP) / 8); |
| 66 | |
| 67 | for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { |
| 68 | uchar *s = str; |
| 69 | int i; |
| 70 | #if LCD_BPP == LCD_COLOR16 |
| 71 | ushort *d = (ushort *)dest; |
| 72 | #elif LCD_BPP == LCD_COLOR32 |
| 73 | u32 *d = (u32 *)dest; |
| 74 | #else |
| 75 | uchar *d = dest; |
| 76 | #endif |
| 77 | |
| 78 | fg_color = lcd_getfgcolor(); |
| 79 | bg_color = lcd_getbgcolor(); |
| 80 | for (i = 0; i < count; ++i) { |
| 81 | uchar c, bits; |
| 82 | |
| 83 | c = *s++; |
| 84 | bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; |
| 85 | |
| 86 | for (c = 0; c < 8; ++c) { |
| 87 | *d++ = (bits & 0x80) ? fg_color : bg_color; |
| 88 | bits <<= 1; |
| 89 | } |
| 90 | } |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | static inline void lcd_putc_xy(ushort x, ushort y, uchar c) |
| 95 | { |
| 96 | lcd_drawchars(x, y, &c, 1); |
| 97 | } |
| 98 | |
| 99 | static void console_scrollup(void) |
| 100 | { |
| 101 | const int rows = CONFIG_CONSOLE_SCROLL_LINES; |
| 102 | int bg_color = lcd_getbgcolor(); |
| 103 | |
| 104 | /* Copy up rows ignoring those that will be overwritten */ |
| 105 | memcpy(CONSOLE_ROW_FIRST, |
| 106 | lcd_console_address + CONSOLE_ROW_SIZE * rows, |
| 107 | CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); |
| 108 | |
| 109 | /* Clear the last rows */ |
| 110 | #if (LCD_BPP != LCD_COLOR32) |
| 111 | memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, |
| 112 | bg_color, CONSOLE_ROW_SIZE * rows); |
| 113 | #else |
| 114 | u32 *ppix = lcd_console_address + |
| 115 | CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows; |
| 116 | u32 i; |
| 117 | for (i = 0; |
| 118 | i < (CONSOLE_ROW_SIZE * rows) / NBYTES(panel_info.vl_bpix); |
| 119 | i++) { |
| 120 | *ppix++ = bg_color; |
| 121 | } |
| 122 | #endif |
| 123 | lcd_sync(); |
| 124 | console_curr_row -= rows; |
| 125 | } |
| 126 | |
| 127 | static inline void console_back(void) |
| 128 | { |
| 129 | if (--console_curr_col < 0) { |
| 130 | console_curr_col = console_cols - 1; |
| 131 | if (--console_curr_row < 0) |
| 132 | console_curr_row = 0; |
| 133 | } |
| 134 | |
| 135 | lcd_putc_xy(console_curr_col * VIDEO_FONT_WIDTH, |
| 136 | console_curr_row * VIDEO_FONT_HEIGHT, ' '); |
| 137 | } |
| 138 | |
| 139 | static inline void console_newline(void) |
| 140 | { |
| 141 | console_curr_col = 0; |
| 142 | |
| 143 | /* Check if we need to scroll the terminal */ |
| 144 | if (++console_curr_row >= console_rows) |
| 145 | console_scrollup(); |
| 146 | else |
| 147 | lcd_sync(); |
| 148 | } |
| 149 | |
| 150 | void lcd_putc(const char c) |
| 151 | { |
| 152 | if (!lcd_is_enabled) { |
| 153 | serial_putc(c); |
| 154 | |
| 155 | return; |
| 156 | } |
| 157 | |
| 158 | switch (c) { |
| 159 | case '\r': |
| 160 | console_curr_col = 0; |
| 161 | |
| 162 | return; |
| 163 | case '\n': |
| 164 | console_newline(); |
| 165 | |
| 166 | return; |
| 167 | case '\t': /* Tab (8 chars alignment) */ |
| 168 | console_curr_col += 8; |
| 169 | console_curr_col &= ~7; |
| 170 | |
| 171 | if (console_curr_col >= console_cols) |
| 172 | console_newline(); |
| 173 | |
| 174 | return; |
| 175 | case '\b': |
| 176 | console_back(); |
| 177 | |
| 178 | return; |
| 179 | default: |
| 180 | lcd_putc_xy(console_curr_col * VIDEO_FONT_WIDTH, |
| 181 | console_curr_row * VIDEO_FONT_HEIGHT, c); |
| 182 | if (++console_curr_col >= console_cols) |
| 183 | console_newline(); |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | void lcd_puts(const char *s) |
| 188 | { |
| 189 | if (!lcd_is_enabled) { |
| 190 | serial_puts(s); |
| 191 | |
| 192 | return; |
| 193 | } |
| 194 | |
| 195 | while (*s) |
| 196 | lcd_putc(*s++); |
| 197 | |
| 198 | lcd_sync(); |
| 199 | } |
| 200 | |
| 201 | void lcd_printf(const char *fmt, ...) |
| 202 | { |
| 203 | va_list args; |
| 204 | char buf[CONFIG_SYS_PBSIZE]; |
| 205 | |
| 206 | va_start(args, fmt); |
| 207 | vsprintf(buf, fmt, args); |
| 208 | va_end(args); |
| 209 | |
| 210 | lcd_puts(buf); |
| 211 | } |
Hannes Petermaier | d38d0c6 | 2015-02-03 13:22:24 +0100 | [diff] [blame] | 212 | |
| 213 | static int do_lcd_setcursor(cmd_tbl_t *cmdtp, int flag, int argc, |
| 214 | char *const argv[]) |
| 215 | { |
| 216 | unsigned int col, row; |
| 217 | |
| 218 | if (argc != 3) |
| 219 | return CMD_RET_USAGE; |
| 220 | |
| 221 | col = simple_strtoul(argv[1], NULL, 10); |
| 222 | row = simple_strtoul(argv[2], NULL, 10); |
| 223 | lcd_position_cursor(col, row); |
| 224 | |
| 225 | return 0; |
| 226 | } |
| 227 | |
Hannes Petermaier | 1b7caf1 | 2015-02-03 13:22:25 +0100 | [diff] [blame] | 228 | static int do_lcd_puts(cmd_tbl_t *cmdtp, int flag, int argc, |
| 229 | char *const argv[]) |
| 230 | { |
| 231 | if (argc != 2) |
| 232 | return CMD_RET_USAGE; |
| 233 | |
| 234 | lcd_puts(argv[1]); |
| 235 | |
| 236 | return 0; |
| 237 | } |
| 238 | |
Hannes Petermaier | d38d0c6 | 2015-02-03 13:22:24 +0100 | [diff] [blame] | 239 | U_BOOT_CMD( |
| 240 | setcurs, 3, 1, do_lcd_setcursor, |
| 241 | "set cursor position within screen", |
| 242 | " <col> <row> in character" |
| 243 | ); |
Hannes Petermaier | 1b7caf1 | 2015-02-03 13:22:25 +0100 | [diff] [blame] | 244 | |
| 245 | U_BOOT_CMD( |
| 246 | lcdputs, 2, 1, do_lcd_puts, |
| 247 | "print string on lcd-framebuffer", |
| 248 | " <string>" |
| 249 | ); |
| 250 | |