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>
19 extern char lcd_is_enabled;
21 extern int lcd_line_length;
23 extern struct vidinfo panel_info;
25 void lcd_ctrl_init(void *lcdbase);
26 void lcd_enable(void);
28 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */
29 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue);
30 void lcd_initcolregs(void);
32 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */
33 struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
35 int bmp_display(ulong addr, int x, int y);
38 * Set whether we need to flush the dcache when changing the LCD image. This
41 * @param flush non-zero to flush cache after update, 0 to skip
43 void lcd_set_flush_dcache(int flush);
45 #if defined CONFIG_MPC823
46 #include <mpc823_lcd.h>
47 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
48 defined CONFIG_CPU_MONAHANS
50 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD)
51 #include <atmel_lcd.h>
52 #elif defined(CONFIG_EXYNOS_FB)
53 #include <exynos_lcd.h>
55 typedef struct vidinfo {
56 ushort vl_col; /* Number of columns (i.e. 160) */
57 ushort vl_row; /* Number of rows (i.e. 100) */
59 u_char vl_bpix; /* Bits per pixel, 0 = 1 */
61 ushort *cmap; /* Pointer to the colormap */
63 void *priv; /* Pointer to driver-specific data */
66 static __maybe_unused ushort *configuration_get_cmap(void)
68 return panel_info.cmap;
72 ushort *configuration_get_cmap(void);
74 extern vidinfo_t panel_info;
78 void lcd_disable(void);
79 void lcd_panel_disable(void);
81 void lcd_putc(const char c);
82 void lcd_puts(const char *s);
83 void lcd_printf(const char *fmt, ...);
85 int lcd_display_bitmap(ulong bmp_image, int x, int y);
88 * Get the width of the LCD in pixels
90 * @return width of LCD in pixels
92 int lcd_get_pixel_width(void);
95 * Get the height of the LCD in pixels
97 * @return height of LCD in pixels
99 int lcd_get_pixel_height(void);
102 * Get the number of text lines/rows on the LCD
104 * @return number of rows
106 int lcd_get_screen_rows(void);
109 * Get the number of text columns on the LCD
111 * @return number of columns
113 int lcd_get_screen_columns(void);
116 * Get the background color of the LCD
118 * @return background color value
120 int lcd_getbgcolor(void);
123 * Get the foreground color of the LCD
125 * @return foreground color value
127 int lcd_getfgcolor(void);
130 * Set the position of the text cursor
132 * @param col Column to place cursor (0 = left side)
133 * @param row Row to place cursor (0 = top line)
135 void lcd_position_cursor(unsigned col, unsigned row);
137 /* Allow boards to customize the information displayed */
138 void lcd_show_board_info(void);
140 /* Return the size of the LCD frame buffer, and the line length */
141 int lcd_get_size(int *line_length);
143 int lcd_dt_simplefb_add_node(void *blob);
144 int lcd_dt_simplefb_enable_existing_node(void *blob);
146 /* Update the LCD / flush the cache */
149 /************************************************************************/
150 /* ** BITMAP DISPLAY SUPPORT */
151 /************************************************************************/
152 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
153 # include <bmp_layout.h>
154 # include <asm/byteorder.h>
158 * Information about displays we are using. This is for configuring
159 * the LCD controller and memory allocation. Someone has to know what
160 * is connected, as we can't autodetect anything.
162 #define CONFIG_SYS_HIGH 0 /* Pins are active high */
163 #define CONFIG_SYS_LOW 1 /* Pins are active low */
165 #define LCD_MONOCHROME 0
169 #define LCD_COLOR16 4
170 #define LCD_COLOR32 5
171 /*----------------------------------------------------------------------*/
172 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
173 # define LCD_INFO_X 0
174 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
175 #elif defined(CONFIG_LCD_LOGO)
176 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
177 # define LCD_INFO_Y VIDEO_FONT_HEIGHT
179 # define LCD_INFO_X VIDEO_FONT_WIDTH
180 # define LCD_INFO_Y VIDEO_FONT_HEIGHT
183 /* Default to 8bpp if bit depth not specified */
185 # define LCD_BPP LCD_COLOR8
191 /* Calculate nr. of bits per pixel and nr. of colors */
192 #define NBITS(bit_code) (1 << (bit_code))
193 #define NCOLORS(bit_code) (1 << NBITS(bit_code))
195 /************************************************************************/
196 /* ** CONSOLE CONSTANTS */
197 /************************************************************************/
198 #if LCD_BPP == LCD_COLOR8
201 * 8bpp color definitions
203 # define CONSOLE_COLOR_BLACK 0
204 # define CONSOLE_COLOR_RED 1
205 # define CONSOLE_COLOR_GREEN 2
206 # define CONSOLE_COLOR_YELLOW 3
207 # define CONSOLE_COLOR_BLUE 4
208 # define CONSOLE_COLOR_MAGENTA 5
209 # define CONSOLE_COLOR_CYAN 6
210 # define CONSOLE_COLOR_GREY 14
211 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
213 #elif LCD_BPP == LCD_COLOR32
215 * 32bpp color definitions
217 # define CONSOLE_COLOR_RED 0x00ff0000
218 # define CONSOLE_COLOR_GREEN 0x0000ff00
219 # define CONSOLE_COLOR_YELLOW 0x00ffff00
220 # define CONSOLE_COLOR_BLUE 0x000000ff
221 # define CONSOLE_COLOR_MAGENTA 0x00ff00ff
222 # define CONSOLE_COLOR_CYAN 0x0000ffff
223 # define CONSOLE_COLOR_GREY 0x00aaaaaa
224 # define CONSOLE_COLOR_BLACK 0x00000000
225 # define CONSOLE_COLOR_WHITE 0x00ffffff /* Must remain last / highest*/
226 # define NBYTES(bit_code) (NBITS(bit_code) >> 3)
228 #elif LCD_BPP == LCD_COLOR16
231 * 16bpp color definitions
233 # define CONSOLE_COLOR_BLACK 0x0000
234 # define CONSOLE_COLOR_RED 0xf800
235 # define CONSOLE_COLOR_GREEN 0x07e0
236 # define CONSOLE_COLOR_YELLOW 0xffe0
237 # define CONSOLE_COLOR_BLUE 0x001f
238 # define CONSOLE_COLOR_MAGENTA 0xf81f
239 # define CONSOLE_COLOR_CYAN 0x07ff
240 # define CONSOLE_COLOR_GREY 0xcccc
241 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
244 #error Invalid LCD_BPP setting
245 #endif /* color definitions */
247 /************************************************************************/
249 # define PAGE_SIZE 4096
252 /************************************************************************/