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Diffstat (limited to 'u-boot/include/lcd.h')
| -rw-r--r-- | u-boot/include/lcd.h | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/u-boot/include/lcd.h b/u-boot/include/lcd.h new file mode 100644 index 0000000..0e098d9 --- /dev/null +++ b/u-boot/include/lcd.h @@ -0,0 +1,334 @@ +/* + * 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; +extern struct vidinfo panel_info; + +extern void lcd_ctrl_init (void *lcdbase); +extern void lcd_enable (void); + +/* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */ +extern void lcd_setcolreg (ushort regno, + ushort red, ushort green, ushort blue); +extern void lcd_initcolregs (void); + +/* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */ +extern struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp); + +#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; + +#elif defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS +/* + * 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; + +#elif defined(CONFIG_ATMEL_LCD) + +typedef struct vidinfo { + u_long vl_col; /* Number of columns (i.e. 640) */ + u_long vl_row; /* Number of rows (i.e. 480) */ + u_long vl_clk; /* pixel clock in ps */ + + /* LCD configuration register */ + u_long vl_sync; /* Horizontal / vertical sync */ + u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ + u_long vl_tft; /* 0 = passive, 1 = TFT */ + u_long vl_cont_pol_low; /* contrast polarity is low */ + + /* Horizontal control register. */ + u_long vl_hsync_len; /* Length of horizontal sync */ + u_long vl_left_margin; /* Time from sync to picture */ + u_long vl_right_margin; /* Time from picture to sync */ + + /* Vertical control register. */ + u_long vl_vsync_len; /* Length of vertical sync */ + u_long vl_upper_margin; /* Time from sync to picture */ + u_long vl_lower_margin; /* Time from picture to sync */ + + u_long mmio; /* Memory mapped registers */ +} vidinfo_t; + +#else + +typedef struct vidinfo { + ushort vl_col; /* Number of columns (i.e. 160) */ + ushort vl_row; /* Number of rows (i.e. 100) */ + + u_char vl_bpix; /* Bits per pixel, 0 = 1 */ + + ushort *cmap; /* Pointer to the colormap */ + + void *priv; /* Pointer to driver-specific data */ +} vidinfo_t; + +#endif /* CONFIG_MPC823, CONFIG_PXA250 or CONFIG_MCC200 or CONFIG_ATMEL_LCD */ + +extern vidinfo_t panel_info; + +/* 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, ...); + +/* Allow boards to customize the information displayed */ +void lcd_show_board_info(void); + +/************************************************************************/ +/* ** BITMAP DISPLAY SUPPORT */ +/************************************************************************/ +#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) +# include <bmp_layout.h> +# include <asm/byteorder.h> +#endif + +/* + * 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 CONFIG_SYS_HIGH 0 /* Pins are active high */ +#define CONFIG_SYS_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) || (LCD_BPP == LCD_COLOR16) +# define COLOR_MASK(c) (c) +#else +# error Unsupported LCD BPP. +#endif + +/************************************************************************/ + +#endif /* _LCD_H_ */ |