2 * Copyright (C) 2004-2010 Freescale Semiconductor, Inc.
4 * MPC823 and PXA LCD Controller
6 * Modeled after video interface by Paolo Scaffardi
10 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
12 * SPDX-License-Identifier: GPL-2.0+
17 #include <lcd_console.h>
18 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
19 #include <bmp_layout.h>
20 #include <asm/byteorder.h>
23 extern char lcd_is_enabled;
24 extern int lcd_line_length;
25 extern struct vidinfo panel_info;
27 void lcd_ctrl_init(void *lcdbase);
28 void lcd_enable(void);
29 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue);
31 struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
33 int bmp_display(ulong addr, int x, int y);
36 * Set whether we need to flush the dcache when changing the LCD image. This
39 * @param flush non-zero to flush cache after update, 0 to skip
41 void lcd_set_flush_dcache(int flush);
43 #if defined CONFIG_MPC823
44 #include <mpc823_lcd.h>
45 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
46 defined CONFIG_CPU_MONAHANS
48 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD)
49 #include <atmel_lcd.h>
50 #elif defined(CONFIG_EXYNOS_FB)
51 #include <exynos_lcd.h>
53 typedef struct vidinfo {
54 ushort vl_col; /* Number of columns (i.e. 160) */
55 ushort vl_row; /* Number of rows (i.e. 100) */
56 u_char vl_bpix; /* Bits per pixel, 0 = 1 */
57 ushort *cmap; /* Pointer to the colormap */
58 void *priv; /* Pointer to driver-specific data */
61 static __maybe_unused ushort *configuration_get_cmap(void)
63 return panel_info.cmap;
67 ushort *configuration_get_cmap(void);
69 extern vidinfo_t panel_info;
71 void lcd_putc(const char c);
72 void lcd_puts(const char *s);
73 void lcd_printf(const char *fmt, ...);
75 int lcd_display_bitmap(ulong bmp_image, int x, int y);
78 * Get the width of the LCD in pixels
80 * @return width of LCD in pixels
82 int lcd_get_pixel_width(void);
85 * Get the height of the LCD in pixels
87 * @return height of LCD in pixels
89 int lcd_get_pixel_height(void);
92 * Get the number of text lines/rows on the LCD
94 * @return number of rows
96 int lcd_get_screen_rows(void);
99 * Get the number of text columns on the LCD
101 * @return number of columns
103 int lcd_get_screen_columns(void);
106 * Get the background color of the LCD
108 * @return background color value
110 int lcd_getbgcolor(void);
113 * Get the foreground color of the LCD
115 * @return foreground color value
117 int lcd_getfgcolor(void);
120 * Set the position of the text cursor
122 * @param col Column to place cursor (0 = left side)
123 * @param row Row to place cursor (0 = top line)
125 void lcd_position_cursor(unsigned col, unsigned row);
127 /* Allow boards to customize the information displayed */
128 void lcd_show_board_info(void);
130 /* Return the size of the LCD frame buffer, and the line length */
131 int lcd_get_size(int *line_length);
133 /* Update the LCD / flush the cache */
137 * Information about displays we are using. This is for configuring
138 * the LCD controller and memory allocation. Someone has to know what
139 * is connected, as we can't autodetect anything.
141 #define CONFIG_SYS_HIGH 0 /* Pins are active high */
142 #define CONFIG_SYS_LOW 1 /* Pins are active low */
144 #define LCD_MONOCHROME 0
148 #define LCD_COLOR16 4
149 #define LCD_COLOR32 5
151 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
153 #define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
154 #elif defined(CONFIG_LCD_LOGO)
155 #define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
156 #define LCD_INFO_Y VIDEO_FONT_HEIGHT
158 #define LCD_INFO_X VIDEO_FONT_WIDTH
159 #define LCD_INFO_Y VIDEO_FONT_HEIGHT
162 /* Default to 8bpp if bit depth not specified */
164 #define LCD_BPP LCD_COLOR8
171 /* Calculate nr. of bits per pixel and nr. of colors */
172 #define NBITS(bit_code) (1 << (bit_code))
173 #define NCOLORS(bit_code) (1 << NBITS(bit_code))
175 #if LCD_BPP == LCD_COLOR8
176 # define CONSOLE_COLOR_BLACK 0
177 # define CONSOLE_COLOR_RED 1
178 # define CONSOLE_COLOR_GREEN 2
179 # define CONSOLE_COLOR_YELLOW 3
180 # define CONSOLE_COLOR_BLUE 4
181 # define CONSOLE_COLOR_MAGENTA 5
182 # define CONSOLE_COLOR_CYAN 6
183 # define CONSOLE_COLOR_GREY 14
184 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
185 #elif LCD_BPP == LCD_COLOR32
186 #define CONSOLE_COLOR_RED 0x00ff0000
187 #define CONSOLE_COLOR_GREEN 0x0000ff00
188 #define CONSOLE_COLOR_YELLOW 0x00ffff00
189 #define CONSOLE_COLOR_BLUE 0x000000ff
190 #define CONSOLE_COLOR_MAGENTA 0x00ff00ff
191 #define CONSOLE_COLOR_CYAN 0x0000ffff
192 #define CONSOLE_COLOR_GREY 0x00aaaaaa
193 #define CONSOLE_COLOR_BLACK 0x00000000
194 #define CONSOLE_COLOR_WHITE 0x00ffffff /* Must remain last / highest */
195 #define NBYTES(bit_code) (NBITS(bit_code) >> 3)
196 #else /* 16bpp color definitions */
197 #define CONSOLE_COLOR_BLACK 0x0000
198 #define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
199 #endif /* color definitions */
202 #define PAGE_SIZE 4096