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u-boot/include/lcd.h
Vadim Bendebury 395166cffb lcd: Provide an API to access LCD parameters 
Create a basic API to provide access to lcd parameters such as screen
size, and to position the cursor on the screen.

This matches up with the video API for the same purpose. Unfortunately
they are not yet combined.

Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-07 00:57:16 +01:00

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/*
* 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);
extern int bmp_display(ulong addr, int x, int y);
#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_CPU_PXA25X) || defined(CONFIG_CPU_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) || defined(CONFIG_ATMEL_HLCD)
typedef struct vidinfo {
ushort vl_col; /* Number of columns (i.e. 640) */
ushort 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 */
u_long vl_clk_pol; /* clock polarity */
/* 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;
#elif defined(CONFIG_EXYNOS_FB)
enum {
FIMD_RGB_INTERFACE = 1,
FIMD_CPU_INTERFACE = 2,
};
enum exynos_fb_rgb_mode_t {
MODE_RGB_P = 0,
MODE_BGR_P = 1,
MODE_RGB_S = 2,
MODE_BGR_S = 3,
};
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_freq; /* Frequency */
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 */
/* Horizontal control register. Timing from data sheet */
u_char vl_hspw; /* Horz sync pulse width */
u_char vl_hfpd; /* Wait before of line */
u_char vl_hbpd; /* Wait end of line */
/* Vertical control register. */
u_char vl_vspw; /* Vertical sync pulse width */
u_char vl_vfpd; /* Wait before of frame */
u_char vl_vbpd; /* Wait end of frame */
u_char vl_cmd_allow_len; /* Wait end of frame */
void (*cfg_gpio)(void);
void (*backlight_on)(unsigned int onoff);
void (*reset_lcd)(void);
void (*lcd_power_on)(void);
void (*cfg_ldo)(void);
void (*enable_ldo)(unsigned int onoff);
void (*mipi_power)(void);
void (*backlight_reset)(void);
unsigned int win_id;
unsigned int init_delay;
unsigned int power_on_delay;
unsigned int reset_delay;
unsigned int interface_mode;
unsigned int mipi_enabled;
unsigned int dp_enabled;
unsigned int cs_setup;
unsigned int wr_setup;
unsigned int wr_act;
unsigned int wr_hold;
unsigned int logo_on;
unsigned int logo_width;
unsigned int logo_height;
unsigned long logo_addr;
unsigned int rgb_mode;
unsigned int resolution;
/* parent clock name(MPLL, EPLL or VPLL) */
unsigned int pclk_name;
/* ratio value for source clock from parent clock. */
unsigned int sclk_div;
unsigned int dual_lcd_enabled;
} vidinfo_t;
void init_panel_info(vidinfo_t *vid);
#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_CPU_PXA25X, CONFIG_MCC200, 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, ...);
void lcd_clear(void);
int lcd_display_bitmap(ulong bmp_image, int x, int y);
/**
* Get the width of the LCD in pixels
*
* @return width of LCD in pixels
*/
int lcd_get_pixel_width(void);
/**
* Get the height of the LCD in pixels
*
* @return height of LCD in pixels
*/
int lcd_get_pixel_height(void);
/**
* Get the number of text lines/rows on the LCD
*
* @return number of rows
*/
int lcd_get_screen_rows(void);
/**
* Get the number of text columns on the LCD
*
* @return number of columns
*/
int lcd_get_screen_columns(void);
/**
* Set the position of the text cursor
*
* @param col Column to place cursor (0 = left side)
* @param row Row to place cursor (0 = top line)
*/
void lcd_position_cursor(unsigned col, unsigned row);
/* 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_ */
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