xref: /openbmc/u-boot/include/lcd.h (revision e8f80a5a)
1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * MPC823 and PXA LCD Controller
4  *
5  * Modeled after video interface by Paolo Scaffardi
6  *
7  *
8  * (C) Copyright 2001
9  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
10  */
11 
12 #ifndef _LCD_H_
13 #define _LCD_H_
14 #include <lcd_console.h>
15 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
16 #include <bmp_layout.h>
17 #include <asm/byteorder.h>
18 #endif
19 
20 int bmp_display(ulong addr, int x, int y);
21 struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
22 			     void **alloc_addr);
23 
24 #ifndef CONFIG_DM_VIDEO
25 
26 extern char lcd_is_enabled;
27 extern int lcd_line_length;
28 extern struct vidinfo panel_info;
29 
30 void lcd_ctrl_init(void *lcdbase);
31 void lcd_enable(void);
32 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue);
33 
34 /**
35  * Set whether we need to flush the dcache when changing the LCD image. This
36  * defaults to off.
37  *
38  * @param flush		non-zero to flush cache after update, 0 to skip
39  */
40 void lcd_set_flush_dcache(int flush);
41 
42 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
43 	defined CONFIG_CPU_MONAHANS
44 #include <pxa_lcd.h>
45 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD)
46 #include <atmel_lcd.h>
47 #elif defined(CONFIG_EXYNOS_FB)
48 #include <exynos_lcd.h>
49 #else
50 typedef struct vidinfo {
51 	ushort	vl_col;		/* Number of columns (i.e. 160) */
52 	ushort	vl_row;		/* Number of rows (i.e. 100) */
53 	ushort	vl_rot;		/* Rotation of Display (0, 1, 2, 3) */
54 	u_char	vl_bpix;	/* Bits per pixel, 0 = 1 */
55 	ushort	*cmap;		/* Pointer to the colormap */
56 	void	*priv;		/* Pointer to driver-specific data */
57 } vidinfo_t;
58 
configuration_get_cmap(void)59 static __maybe_unused ushort *configuration_get_cmap(void)
60 {
61 	return panel_info.cmap;
62 }
63 #endif
64 
65 ushort *configuration_get_cmap(void);
66 
67 extern vidinfo_t panel_info;
68 
69 void lcd_putc(const char c);
70 void lcd_puts(const char *s);
71 void lcd_printf(const char *fmt, ...);
72 void lcd_clear(void);
73 int lcd_display_bitmap(ulong bmp_image, int x, int y);
74 
75 /**
76  * Get the width of the LCD in pixels
77  *
78  * @return width of LCD in pixels
79  */
80 int lcd_get_pixel_width(void);
81 
82 /**
83  * Get the height of the LCD in pixels
84  *
85  * @return height of LCD in pixels
86  */
87 int lcd_get_pixel_height(void);
88 
89 /**
90  * Get the number of text lines/rows on the LCD
91  *
92  * @return number of rows
93  */
94 int lcd_get_screen_rows(void);
95 
96 /**
97  * Get the number of text columns on the LCD
98  *
99  * @return number of columns
100  */
101 int lcd_get_screen_columns(void);
102 
103 /**
104  * Get the background color of the LCD
105  *
106  * @return background color value
107  */
108 int lcd_getbgcolor(void);
109 
110 /**
111  * Get the foreground color of the LCD
112  *
113  * @return foreground color value
114  */
115 int lcd_getfgcolor(void);
116 
117 /**
118  * Set the position of the text cursor
119  *
120  * @param col	Column to place cursor (0 = left side)
121  * @param row	Row to place cursor (0 = top line)
122  */
123 void lcd_position_cursor(unsigned col, unsigned row);
124 
125 /* Allow boards to customize the information displayed */
126 void lcd_show_board_info(void);
127 
128 /* Return the size of the LCD frame buffer, and the line length */
129 int lcd_get_size(int *line_length);
130 
131 /* Update the LCD / flush the cache */
132 void lcd_sync(void);
133 
134 /*
135  *  Information about displays we are using. This is for configuring
136  *  the LCD controller and memory allocation. Someone has to know what
137  *  is connected, as we can't autodetect anything.
138  */
139 #define CONFIG_SYS_HIGH	0	/* Pins are active high			*/
140 #define CONFIG_SYS_LOW	1	/* Pins are active low			*/
141 
142 #define LCD_MONOCHROME	0
143 #define LCD_COLOR2	1
144 #define LCD_COLOR4	2
145 #define LCD_COLOR8	3
146 #define LCD_COLOR16	4
147 #define LCD_COLOR32	5
148 
149 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
150 #define LCD_INFO_X		0
151 #define LCD_INFO_Y		(BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
152 #elif defined(CONFIG_LCD_LOGO)
153 #define LCD_INFO_X		(BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
154 #define LCD_INFO_Y		VIDEO_FONT_HEIGHT
155 #else
156 #define LCD_INFO_X		VIDEO_FONT_WIDTH
157 #define LCD_INFO_Y		VIDEO_FONT_HEIGHT
158 #endif
159 
160 /* Default to 8bpp if bit depth not specified */
161 #ifndef LCD_BPP
162 #define LCD_BPP			LCD_COLOR8
163 #endif
164 
165 #ifndef LCD_DF
166 #define LCD_DF			1
167 #endif
168 
169 /* Calculate nr. of bits per pixel  and nr. of colors */
170 #define NBITS(bit_code)		(1 << (bit_code))
171 #define NCOLORS(bit_code)	(1 << NBITS(bit_code))
172 
173 #if LCD_BPP == LCD_COLOR8
174 # define CONSOLE_COLOR_BLACK	0
175 # define CONSOLE_COLOR_RED	1
176 # define CONSOLE_COLOR_GREEN	2
177 # define CONSOLE_COLOR_YELLOW	3
178 # define CONSOLE_COLOR_BLUE	4
179 # define CONSOLE_COLOR_MAGENTA	5
180 # define CONSOLE_COLOR_CYAN	6
181 # define CONSOLE_COLOR_GREY	14
182 # define CONSOLE_COLOR_WHITE	15		/* Must remain last / highest */
183 #elif LCD_BPP == LCD_COLOR32
184 #define CONSOLE_COLOR_RED	0x00ff0000
185 #define CONSOLE_COLOR_GREEN	0x0000ff00
186 #define CONSOLE_COLOR_YELLOW	0x00ffff00
187 #define CONSOLE_COLOR_BLUE	0x000000ff
188 #define CONSOLE_COLOR_MAGENTA	0x00ff00ff
189 #define CONSOLE_COLOR_CYAN	0x0000ffff
190 #define CONSOLE_COLOR_GREY	0x00aaaaaa
191 #define CONSOLE_COLOR_BLACK	0x00000000
192 #define CONSOLE_COLOR_WHITE	0x00ffffff	/* Must remain last / highest */
193 #define NBYTES(bit_code)	(NBITS(bit_code) >> 3)
194 #else /* 16bpp color definitions */
195 # define CONSOLE_COLOR_BLACK	0x0000
196 # define CONSOLE_COLOR_RED	0xF800
197 # define CONSOLE_COLOR_GREEN	0x07E0
198 # define CONSOLE_COLOR_YELLOW	0xFFE0
199 # define CONSOLE_COLOR_BLUE	0x001F
200 # define CONSOLE_COLOR_MAGENTA	0xF81F
201 # define CONSOLE_COLOR_CYAN	0x07FF
202 # define CONSOLE_COLOR_GREY	0xC618
203 # define CONSOLE_COLOR_WHITE	0xffff		/* Must remain last / highest */
204 #endif /* color definitions */
205 
206 #if LCD_BPP == LCD_COLOR16
207 #define fbptr_t ushort
208 #elif LCD_BPP == LCD_COLOR32
209 #define fbptr_t u32
210 #else
211 #define fbptr_t uchar
212 #endif
213 
214 #ifndef PAGE_SIZE
215 #define PAGE_SIZE	4096
216 #endif
217 
218 #endif /* !CONFIG_DM_VIDEO */
219 
220 #endif	/* _LCD_H_ */
221