]> git.sur5r.net Git - u-boot/blob - common/lcd_console.c
Merge branch 'master' of git://git.denx.de/u-boot-video
[u-boot] / 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