diff options
Diffstat (limited to 'include/lcd.h')
| -rw-r--r-- | include/lcd.h | 261 |
1 files changed, 255 insertions, 6 deletions
diff --git a/include/lcd.h b/include/lcd.h index e0e2184..06feab3 100644 --- a/include/lcd.h +++ b/include/lcd.h @@ -1,5 +1,5 @@ /* - * MPC823 LCD Controller + * MPC823 and PXA LCD Controller * * Modeled after video interface by Paolo Scaffardi * @@ -17,7 +17,7 @@ * * 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 + * 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 @@ -29,17 +29,266 @@ #ifndef _LCD_H_ #define _LCD_H_ -#if defined(CONFIG_RBC823) -void lcd_disable (void); -#endif - 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 */ + +/************************************************************************/ +/* ** LOGO DATA */ +/************************************************************************/ +#ifdef CONFIG_LCD_LOGO +# include <bmp_logo.h> /* Get logo data, width and height */ +#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 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(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 */ + +#if defined(CONFIG_LCD_LOGO) && (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) +# error Default Color Map overlaps with Logo Color Map #endif + +/************************************************************************/ +#ifndef PAGE_SIZE +# define PAGE_SIZE 4096 +#endif + +/************************************************************************/ +/* ** CONSOLE DEFINITIONS & FUNCTIONS */ +/************************************************************************/ +#if defined(CONFIG_LCD_LOGO) && !defined(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_ */ |