/* * MPC823 and PXA LCD Controller * * Modeled after video interface by Paolo Scaffardi * * * (C) Copyright 2001 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #ifndef _LCD_H_ #define _LCD_H_ extern char lcd_is_enabled; extern int lcd_line_length; extern int lcd_color_fg; extern int lcd_color_bg; /* * Frame buffer memory information */ extern void *lcd_base; /* Start of framebuffer memory */ extern void *lcd_console_address; /* Start of console buffer */ extern short console_col; extern short console_row; #if defined CONFIG_MPC823 /* * LCD controller stucture for MPC823 CPU */ typedef struct vidinfo { ushort vl_col; /* Number of columns (i.e. 640) */ ushort vl_row; /* Number of rows (i.e. 480) */ ushort vl_width; /* Width of display area in millimeters */ ushort vl_height; /* Height of display area in millimeters */ /* LCD configuration register */ u_char vl_clkp; /* Clock polarity */ u_char vl_oep; /* Output Enable polarity */ u_char vl_hsp; /* Horizontal Sync polarity */ u_char vl_vsp; /* Vertical Sync polarity */ u_char vl_dp; /* Data polarity */ u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */ u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ u_char vl_clor; /* Color, 0 = mono, 1 = color */ u_char vl_tft; /* 0 = passive, 1 = TFT */ /* Horizontal control register. Timing from data sheet */ ushort vl_wbl; /* Wait between lines */ /* Vertical control register */ u_char vl_vpw; /* Vertical sync pulse width */ u_char vl_lcdac; /* LCD AC timing */ u_char vl_wbf; /* Wait between frames */ } vidinfo_t; extern vidinfo_t panel_info; #elif defined CONFIG_PXA250 /* * PXA LCD DMA descriptor */ struct pxafb_dma_descriptor { u_long fdadr; /* Frame descriptor address register */ u_long fsadr; /* Frame source address register */ u_long fidr; /* Frame ID register */ u_long ldcmd; /* Command register */ }; /* * PXA LCD info */ struct pxafb_info { /* Misc registers */ u_long reg_lccr3; u_long reg_lccr2; u_long reg_lccr1; u_long reg_lccr0; u_long fdadr0; u_long fdadr1; /* DMA descriptors */ struct pxafb_dma_descriptor * dmadesc_fblow; struct pxafb_dma_descriptor * dmadesc_fbhigh; struct pxafb_dma_descriptor * dmadesc_palette; u_long screen; /* physical address of frame buffer */ u_long palette; /* physical address of palette memory */ u_int palette_size; }; /* * LCD controller stucture for PXA CPU */ typedef struct vidinfo { ushort vl_col; /* Number of columns (i.e. 640) */ ushort vl_row; /* Number of rows (i.e. 480) */ ushort vl_width; /* Width of display area in millimeters */ ushort vl_height; /* Height of display area in millimeters */ /* LCD configuration register */ u_char vl_clkp; /* Clock polarity */ u_char vl_oep; /* Output Enable polarity */ u_char vl_hsp; /* Horizontal Sync polarity */ u_char vl_vsp; /* Vertical Sync polarity */ u_char vl_dp; /* Data polarity */ u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ u_char vl_clor; /* Color, 0 = mono, 1 = color */ u_char vl_tft; /* 0 = passive, 1 = TFT */ /* Horizontal control register. Timing from data sheet */ ushort vl_hpw; /* Horz sync pulse width */ u_char vl_blw; /* Wait before of line */ u_char vl_elw; /* Wait end of line */ /* Vertical control register. */ u_char vl_vpw; /* Vertical sync pulse width */ u_char vl_bfw; /* Wait before of frame */ u_char vl_efw; /* Wait end of frame */ /* PXA LCD controller params */ struct pxafb_info pxa; } vidinfo_t; extern vidinfo_t panel_info; #endif /* CONFIG_MPC823 or CONFIG_PXA250 */ /* Video functions */ #if defined(CONFIG_RBC823) void lcd_disable (void); #endif /* int lcd_init (void *lcdbase); */ void lcd_putc (const char c); void lcd_puts (const char *s); void lcd_printf (const char *fmt, ...); /************************************************************************/ /* ** BITMAP DISPLAY SUPPORT */ /************************************************************************/ #if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) # include <bmp_layout.h> # include <asm/byteorder.h> #endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */ /* * Information about displays we are using. This is for configuring * the LCD controller and memory allocation. Someone has to know what * is connected, as we can't autodetect anything. */ #define CFG_HIGH 0 /* Pins are active high */ #define CFG_LOW 1 /* Pins are active low */ #define LCD_MONOCHROME 0 #define LCD_COLOR2 1 #define LCD_COLOR4 2 #define LCD_COLOR8 3 #define LCD_COLOR16 4 /*----------------------------------------------------------------------*/ #if defined(CONFIG_LCD_INFO_BELOW_LOGO) # define LCD_INFO_X 0 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) #elif defined(CONFIG_LCD_LOGO) # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) #else # define LCD_INFO_X (VIDEO_FONT_WIDTH) # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) #endif /* Default to 8bpp if bit depth not specified */ #ifndef LCD_BPP # define LCD_BPP LCD_COLOR8 #endif #ifndef LCD_DF # define LCD_DF 1 #endif /* Calculate nr. of bits per pixel and nr. of colors */ #define NBITS(bit_code) (1 << (bit_code)) #define NCOLORS(bit_code) (1 << NBITS(bit_code)) /************************************************************************/ /* ** CONSOLE CONSTANTS */ /************************************************************************/ #if LCD_BPP == LCD_MONOCHROME /* * Simple black/white definitions */ # define CONSOLE_COLOR_BLACK 0 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */ #elif LCD_BPP == LCD_COLOR8 /* * 8bpp color definitions */ # define CONSOLE_COLOR_BLACK 0 # define CONSOLE_COLOR_RED 1 # define CONSOLE_COLOR_GREEN 2 # define CONSOLE_COLOR_YELLOW 3 # define CONSOLE_COLOR_BLUE 4 # define CONSOLE_COLOR_MAGENTA 5 # define CONSOLE_COLOR_CYAN 6 # define CONSOLE_COLOR_GREY 14 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ #else /* * 16bpp color definitions */ # define CONSOLE_COLOR_BLACK 0x0000 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ #endif /* color definitions */ /************************************************************************/ #ifndef PAGE_SIZE # define PAGE_SIZE 4096 #endif /************************************************************************/ /* ** CONSOLE DEFINITIONS & FUNCTIONS */ /************************************************************************/ #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ / VIDEO_FONT_HEIGHT) #else # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) #endif #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) #define CONSOLE_ROW_FIRST (lcd_console_address) #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ - CONSOLE_ROW_SIZE) #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) #if LCD_BPP == LCD_MONOCHROME # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) #elif LCD_BPP == LCD_COLOR8 # define COLOR_MASK(c) (c) #else # error Unsupported LCD BPP. #endif /************************************************************************/ #endif /* _LCD_H_ */