summaryrefslogtreecommitdiffstats
path: root/common/lcd_console.c
blob: bb0d7c54858a3291feca8edc4bba8697a5bf2c0f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
/*
 * (C) Copyright 2001-2015
 * DENX Software Engineering -- wd@denx.de
 * Compulab Ltd - http://compulab.co.il/
 * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <lcd.h>
#include <video_font.h>		/* Get font data, width and height */
#if defined(CONFIG_LCD_LOGO)
#include <bmp_logo.h>
#endif

static struct console_t cons;

void lcd_set_col(short col)
{
	cons.curr_col = col;
}

void lcd_set_row(short row)
{
	cons.curr_row = row;
}

void lcd_position_cursor(unsigned col, unsigned row)
{
	cons.curr_col = min_t(short, col, cons.cols - 1);
	cons.curr_row = min_t(short, row, cons.rows - 1);
}

int lcd_get_screen_rows(void)
{
	return cons.rows;
}

int lcd_get_screen_columns(void)
{
	return cons.cols;
}

static void lcd_putc_xy0(struct console_t *pcons, ushort x, ushort y, char c)
{
	int fg_color = lcd_getfgcolor();
	int bg_color = lcd_getbgcolor();
	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;
			bits <<= 1;
		}
		dst += (pcons->lcdsizex - VIDEO_FONT_WIDTH);
	}
}

static inline void console_setrow0(struct console_t *pcons, u32 row, int clr)
{
	int i;
	fbptr_t *dst = (fbptr_t *)pcons->fbbase +
				  row * VIDEO_FONT_HEIGHT *
				  pcons->lcdsizex;

	for (i = 0; i < (VIDEO_FONT_HEIGHT * pcons->lcdsizex); i++)
		*dst++ = clr;
}

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++;
}

static inline void console_back(void)
{
	if (--cons.curr_col < 0) {
		cons.curr_col = cons.cols - 1;
		if (--cons.curr_row < 0)
			cons.curr_row = 0;
	}

	cons.fp_putc_xy(&cons,
			cons.curr_col * VIDEO_FONT_WIDTH,
			cons.curr_row * VIDEO_FONT_HEIGHT, ' ');
}

static inline void console_newline(void)
{
	const int rows = CONFIG_CONSOLE_SCROLL_LINES;
	int bg_color = lcd_getbgcolor();
	int i;

	cons.curr_col = 0;

	/* Check if we need to scroll the terminal */
	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)\n",
	      cons.cols, cons.rows, cons.lcdsizex, cons.lcdsizey, vl_rot);
}

void lcd_putc(const char c)
{
	if (!lcd_is_enabled) {
		serial_putc(c);

		return;
	}

	switch (c) {
	case '\r':
		cons.curr_col = 0;
		return;
	case '\n':
		console_newline();

		return;
	case '\t':	/* Tab (8 chars alignment) */
		cons.curr_col +=  8;
		cons.curr_col &= ~7;

		if (cons.curr_col >= cons.cols)
			console_newline();

		return;
	case '\b':
		console_back();

		return;
	default:
		cons.fp_putc_xy(&cons,
				cons.curr_col * VIDEO_FONT_WIDTH,
				cons.curr_row * VIDEO_FONT_HEIGHT, c);
		if (++cons.curr_col >= cons.cols)
			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);
}

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;
}

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;
}

U_BOOT_CMD(
	setcurs, 3,	1,	do_lcd_setcursor,
	"set cursor position within screen",
	"    <col> <row> in character"
);

U_BOOT_CMD(
	lcdputs, 2,	1,	do_lcd_puts,
	"print string on lcd-framebuffer",
	"    <string>"
);

OpenPOWER on IntegriCloud