1090 lines
29 KiB
C
1090 lines
29 KiB
C
/*
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* (C) Copyright 2001-2002
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* Wolfgang Denk, DENX Software Engineering -- wd@denx.de
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/************************************************************************/
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/* ** HEADER FILES */
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/************************************************************************/
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#define DEBUG 1
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#include <config.h>
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#include <common.h>
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#include <version.h>
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#include <stdarg.h>
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#include <lcdvideo.h>
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#include <linux/types.h>
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#include <devices.h>
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#include <asm/arch/pxa-regs.h>
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#ifdef CONFIG_LCD
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/************************************************************************/
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/* ** CONFIG STUFF -- should be moved to board config file */
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/************************************************************************/
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#ifndef CONFIG_EDT32F10
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#define CONFIG_LCD_LOGO
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#define LCD_INFO /* Display Logo, (C) and system info */
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#endif
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#ifdef CONFIG_V37
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#undef CONFIG_LCD_LOGO
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#undef LCD_INFO
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#endif
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#undef CONFIG_LCD_LOGO
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#define LCD_TEST_PATTERN
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/* #define LCD_TEST_PATTERN */ /* color backgnd for frame/color adjust */
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/* #define CFG_INVERT_COLORS */ /* Not needed - adjust vl_dp instead */
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/************************************************************************/
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/************************************************************************/
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/* ** FONT AND LOGO DATA */
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/************************************************************************/
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#include <video_font.h> /* Get font data, width and height */
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#ifdef CONFIG_LCD_LOGO
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# include <bmp_nexus.h> /* Get logo data, width and height */
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#endif
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/************************************************************************/
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/************************************************************************/
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/*
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* Information about displays we are using. This is for configuring
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* the LCD controller and memory allocation. Someone has to know what
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* is connected, as we can't autodetect anything.
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*/
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#define CFG_HIGH 0 /* Pins are active high */
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#define CFG_LOW 1 /* Pins are active low */
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/* PXA LCD DMA descriptor */
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struct pxafb_dma_descriptor {
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u_long fdadr;
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u_long fsadr;
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u_long fidr;
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u_long ldcmd;
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};
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/* PXA LCD info */
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struct pxafb_info {
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/* Misc registers */
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u_long reg_lccr3;
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u_long reg_lccr2;
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u_long reg_lccr1;
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u_long reg_lccr0;
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u_long fdadr0;
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u_long fdadr1;
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/* DMA descriptors */
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struct pxafb_dma_descriptor * dmadesc_fblow;
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struct pxafb_dma_descriptor * dmadesc_fbhigh;
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struct pxafb_dma_descriptor * dmadesc_palette;
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u_long screen; /* physical address of frame buffer */
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u_long palette; /* physical address of palette memory */
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u_int palette_size;
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};
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typedef struct vidinfo {
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ushort vl_col; /* Number of columns (i.e. 640) */
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ushort vl_row; /* Number of rows (i.e. 480) */
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ushort vl_width; /* Width of display area in millimeters */
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ushort vl_height; /* Height of display area in millimeters */
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/* LCD configuration register.
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*/
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u_char vl_clkp; /* Clock polarity */
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u_char vl_oep; /* Output Enable polarity */
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u_char vl_hsp; /* Horizontal Sync polarity */
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u_char vl_vsp; /* Vertical Sync polarity */
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u_char vl_dp; /* Data polarity */
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u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
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u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
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u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
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u_char vl_clor; /* Color, 0 = mono, 1 = color */
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u_char vl_tft; /* 0 = passive, 1 = TFT */
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/* Horizontal control register. Timing from data sheet.
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*/
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ushort vl_hpw; /* Horz sync pulse width */
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u_char vl_blw; /* Wait before of line */
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u_char vl_elw; /* Wait end of line */
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/* Vertical control register.
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*/
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u_char vl_vpw; /* Vertical sync pulse width */
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u_char vl_bfw; /* Wait before of frame */
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u_char vl_efw; /* Wait end of frame */
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u_char vl_lcdac; /* LCD AC timing */
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/* PXA LCD controller params
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*/
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struct pxafb_info pxa;
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} vidinfo_t;
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#define LCD_MONOCHROME 0
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#define LCD_COLOR2 1
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#define LCD_COLOR4 2
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#define LCD_COLOR8 3
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#define LCD_COLOR16 4
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/*----------------------------------------------------------------------*/
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#define CONFIG_PXA_VGA
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#ifdef CONFIG_PXA_VGA
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/*
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* LCD outputs connected to a video DAC
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*/
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#define LCD_BPP LCD_COLOR8
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/* you have to set lccr0 and lccr3 (including pcd) */
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#define REG_LCCR0 0x003008f8
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#define REG_LCCR3 0x0300FF01
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/* 640x480x16 @ 61 Hz */
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static vidinfo_t panel_info = {
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vl_col: 640,
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vl_row: 480,
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vl_width: 640,
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vl_height: 480,
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vl_clkp: CFG_HIGH,
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vl_oep: CFG_HIGH,
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vl_hsp: CFG_HIGH,
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vl_vsp: CFG_HIGH,
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vl_dp: CFG_HIGH,
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vl_bpix: LCD_BPP,
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vl_lbw: 0,
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vl_splt: 0,
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vl_clor: 0,
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vl_lcdac: 0,
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vl_tft: 1,
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vl_hpw: 40,
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vl_blw: 56,
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vl_elw: 56,
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vl_vpw: 20,
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vl_bfw: 8,
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vl_efw: 8,
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};
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#endif /* CONFIG_PXA_VIDEO */
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#ifdef CONFIG_SHARP_LM8V31
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#define LCD_BPP LCD_COLOR8
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#define LCD_INVERT_COLORS /* Needed for colors to be correct, but why? */
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/* you have to set lccr0 and lccr3 (including pcd) */
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#define REG_LCCR0 0x0030087C
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#define REG_LCCR3 0x0340FF08
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static vidinfo_t panel_info = {
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vl_col: 640,
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vl_row: 480,
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vl_width: 157,
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vl_height: 118,
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vl_clkp: CFG_HIGH,
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vl_oep: CFG_HIGH,
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vl_hsp: CFG_HIGH,
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vl_vsp: CFG_HIGH,
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vl_dp: CFG_HIGH,
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vl_bpix: LCD_BPP,
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vl_lbw: 0,
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vl_splt: 1,
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vl_clor: 1,
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vl_lcdac: 0,
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vl_tft: 0,
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vl_hpw: 1,
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vl_blw: 3,
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vl_elw: 3,
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vl_vpw: 1,
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vl_bfw: 0,
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vl_efw: 0,
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};
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#endif /* CONFIG_SHARP_LM8V31 */
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/*----------------------------------------------------------------------*/
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/*----------------------------------------------------------------------*/
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#if defined(LCD_INFO_BELOW_LOGO)
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# define LCD_INFO_X 0
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# define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
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#elif defined(CONFIG_LCD_LOGO)
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# define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
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# define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
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#else
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# define LCD_INFO_X (VIDEO_FONT_WIDTH)
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# define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
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#endif
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#ifndef LCD_BPP
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#define LCD_BPP LCD_COLOR8
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#endif
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#ifndef LCD_DF
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#define LCD_DF 1
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#endif
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#define NBITS(bit_code) (1 << (bit_code))
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#define NCOLORS(bit_code) (1 << NBITS(bit_code))
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static int lcd_line_length;
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static int lcd_color_fg;
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static int lcd_color_bg;
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static char lcd_is_enabled = 0; /* Indicate that LCD is enabled */
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/*
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* Frame buffer memory information
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*/
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static void *lcd_base; /* Start of framebuffer memory */
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static void *lcd_console_address; /* Start of console buffer */
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/************************************************************************/
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/* ** CONSOLE CONSTANTS */
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/************************************************************************/
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#if LCD_BPP == LCD_MONOCHROME
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/*
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* Simple color definitions
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*/
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#define CONSOLE_COLOR_BLACK 0
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#define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
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#elif LCD_BPP == LCD_COLOR8
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/*
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* Simple color definitions
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*/
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#define CONSOLE_COLOR_BLACK 0
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#define CONSOLE_COLOR_RED 1
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#define CONSOLE_COLOR_GREEN 2
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#define CONSOLE_COLOR_YELLOW 3
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#define CONSOLE_COLOR_BLUE 4
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#define CONSOLE_COLOR_MAGENTA 5
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#define CONSOLE_COLOR_CYAN 6
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#define CONSOLE_COLOR_GREY 14
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#define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
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#else /* 16 bit */
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#define CONSOLE_COLOR_BLACK 0x0000
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#define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
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#endif
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#if defined(CONFIG_LCD_LOGO) && (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
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#error Default Color Map overlaps with Logo Color Map
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#endif
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/************************************************************************/
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#ifndef PAGE_SIZE
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#define PAGE_SIZE 4096
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#endif
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/************************************************************************/
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/* ** CONSOLE DEFINITIONS & FUNCTIONS */
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/************************************************************************/
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#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
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#define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
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/ VIDEO_FONT_HEIGHT)
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#else
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#define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
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#endif
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#define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
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#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
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#define CONSOLE_ROW_FIRST (lcd_console_address)
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#define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
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#define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
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- CONSOLE_ROW_SIZE)
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#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
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#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
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#if LCD_BPP == LCD_MONOCHROME
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#define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
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(c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
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#elif LCD_BPP == LCD_COLOR8
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#define COLOR_MASK(c) (c)
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#elif LCD_BPP == LCD_COLOR16
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#define COLOR_MASK(c) (c)
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#else
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#error Unsupported LCD BPP.
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#endif
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static short console_col;
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static short console_row;
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/************************************************************************/
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ulong lcd_setmem (ulong addr);
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static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
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static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
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static inline void lcd_putc_xy (ushort x, ushort y, uchar c);
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static int lcd_init (void *lcdbase);
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static void lcd_ctrl_init (void *lcdbase);
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static void lcd_enable (void);
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static void *lcd_logo (void);
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#if LCD_BPP == LCD_COLOR8
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static void lcd_setcolreg (ushort regno,
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ushort red, ushort green, ushort blue);
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#endif
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#if LCD_BPP == LCD_MONOCHROME
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static void lcd_initcolregs (void);
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#endif
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static void lcd_setfgcolor (int color);
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static void lcd_setbgcolor (int color);
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#ifdef NOT_USED_SO_FAR
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static int lcd_getbgcolor (void);
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static void lcd_disable (void);
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static void lcd_getcolreg (ushort regno,
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ushort *red, ushort *green, ushort *blue);
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static int lcd_getfgcolor (void);
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#endif /* NOT_USED_SO_FAR */
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static int pxafb_init_mem(void *lcdbase, vidinfo_t *vid);
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static void pxafb_setup_gpio(vidinfo_t *vid);
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static void pxafb_enable_controller(vidinfo_t *vid);
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static int pxafb_init(vidinfo_t *vid);
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/************************************************************************/
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/*----------------------------------------------------------------------*/
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static void console_scrollup (void)
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{
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/* Copy up rows ignoring the first one */
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memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
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/* Clear the last one */
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memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
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}
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/*----------------------------------------------------------------------*/
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static inline void console_back (void)
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{
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if (--console_col < 0) {
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console_col = CONSOLE_COLS-1 ;
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if (--console_row < 0) {
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console_row = 0;
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}
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}
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lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
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console_row * VIDEO_FONT_HEIGHT,
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' ');
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}
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/*----------------------------------------------------------------------*/
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static inline void console_newline (void)
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{
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++console_row;
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console_col = 0;
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/* Check if we need to scroll the terminal */
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if (console_row >= CONSOLE_ROWS) {
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/* Scroll everything up */
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console_scrollup () ;
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--console_row;
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}
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}
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/*----------------------------------------------------------------------*/
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void lcd_putc (const char c)
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{
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if (!lcd_is_enabled) {
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serial_putc(c);
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return;
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}
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switch (c) {
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case '\r': console_col = 0;
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return;
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case '\n': console_newline();
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return;
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case '\t': /* Tab (8 chars alignment) */
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console_col |= 8;
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console_col &= ~7;
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if (console_col >= CONSOLE_COLS) {
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console_newline();
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}
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return;
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case '\b': console_back();
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return;
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default: lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
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console_row * VIDEO_FONT_HEIGHT,
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c);
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if (++console_col >= CONSOLE_COLS) {
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console_newline();
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}
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return;
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}
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/* NOTREACHED */
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}
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/*----------------------------------------------------------------------*/
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void lcd_puts (const char *s)
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{
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if (!lcd_is_enabled) {
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serial_puts (s);
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return;
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}
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while (*s) {
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lcd_putc (*s++);
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}
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}
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/************************************************************************/
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/* ** Low-Level Graphics Routines */
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/************************************************************************/
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static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
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{
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uchar *dest;
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ushort off, row;
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dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
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off = x * (1 << LCD_BPP) % 8;
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for (row=0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
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uchar *s = str;
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uchar *d = dest;
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int i;
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#if LCD_BPP == LCD_MONOCHROME
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uchar rest = *d & -(1 << (8-off));
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uchar sym;
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#endif
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for (i=0; i<count; ++i) {
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uchar c, bits;
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c = *s++;
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bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
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#if LCD_BPP == LCD_MONOCHROME
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sym = (COLOR_MASK(lcd_color_fg) & bits) |
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(COLOR_MASK(lcd_color_bg) & ~bits);
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*d++ = rest | (sym >> off);
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rest = sym << (8-off);
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#elif LCD_BPP == LCD_COLOR8
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for (c=0; c<8; ++c) {
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*d++ = (bits & 0x80) ?
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lcd_color_fg : lcd_color_bg;
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bits <<= 1;
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}
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#elif LCD_BPP == LCD_COLOR16
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for (c=0; c<16; ++c) {
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*d++ = (bits & 0x80) ?
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lcd_color_fg : lcd_color_bg;
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bits <<= 1;
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}
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#endif
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}
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#if LCD_BPP == LCD_MONOCHROME
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*d = rest | (*d & ((1 << (8-off)) - 1));
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#endif
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}
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}
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
|
|
{
|
|
#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
|
|
lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen (s));
|
|
#else
|
|
lcd_drawchars (x, y, s, strlen (s));
|
|
#endif
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
|
|
{
|
|
#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
|
|
lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
|
|
#else
|
|
lcd_drawchars (x, y, &c, 1);
|
|
#endif
|
|
}
|
|
|
|
/************************************************************************/
|
|
/** Small utility to check that you got the colours right */
|
|
/************************************************************************/
|
|
#ifdef LCD_TEST_PATTERN
|
|
|
|
#define N_BLK_VERT 2
|
|
#define N_BLK_HOR 3
|
|
|
|
static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
|
|
CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
|
|
CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
|
|
};
|
|
|
|
static void test_pattern (void)
|
|
{
|
|
ushort v_max = panel_info.vl_row;
|
|
ushort h_max = panel_info.vl_col;
|
|
ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
|
|
ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
|
|
ushort v, h;
|
|
uchar *pix = (uchar *)lcd_base;
|
|
|
|
printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
|
|
h_max, v_max, h_step, v_step);
|
|
|
|
/* WARNING: Code silently assumes 8bit/pixel */
|
|
for (v=0; v<v_max; ++v) {
|
|
uchar iy = v / v_step;
|
|
for (h=0; h<h_max; ++h) {
|
|
uchar ix = N_BLK_HOR * iy + (h/h_step);
|
|
*pix++ = test_colors[ix];
|
|
}
|
|
}
|
|
}
|
|
#endif /* LCD_TEST_PATTERN */
|
|
|
|
|
|
/************************************************************************/
|
|
/* ** GENERIC Initialization Routines */
|
|
/************************************************************************/
|
|
|
|
int drv_lcd_init (void)
|
|
{
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
device_t lcddev;
|
|
int rc;
|
|
|
|
lcd_base = (void *)(gd->fb_base);
|
|
|
|
lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
|
|
|
|
lcd_init (lcd_base); /* LCD initialization */
|
|
|
|
/* Device initialization */
|
|
memset (&lcddev, 0, sizeof (lcddev));
|
|
|
|
strcpy (lcddev.name, "lcd");
|
|
lcddev.ext = 0; /* No extensions */
|
|
lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
|
|
lcddev.putc = lcd_putc; /* 'putc' function */
|
|
lcddev.puts = lcd_puts; /* 'puts' function */
|
|
|
|
rc = device_register (&lcddev);
|
|
return (rc == 0) ? 1 : rc;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
static int lcd_init (void *lcdbase)
|
|
{
|
|
/* Initialize the lcd controller */
|
|
debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
|
|
|
|
lcd_ctrl_init (lcdbase);
|
|
|
|
#if LCD_BPP == LCD_MONOCHROME
|
|
/* Setting the palette */
|
|
lcd_initcolregs();
|
|
|
|
#elif LCD_BPP == LCD_COLOR8
|
|
/* Setting the palette */
|
|
lcd_setcolreg (CONSOLE_COLOR_BLACK, 0, 0, 0);
|
|
lcd_setcolreg (CONSOLE_COLOR_RED, 0xFF, 0, 0);
|
|
lcd_setcolreg (CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
|
|
lcd_setcolreg (CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
|
|
lcd_setcolreg (CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
|
|
lcd_setcolreg (CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
|
|
lcd_setcolreg (CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
|
|
lcd_setcolreg (CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
|
|
lcd_setcolreg (CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
|
|
#endif
|
|
|
|
#define CFG_WHITE_ON_BLACK
|
|
#ifndef CFG_WHITE_ON_BLACK
|
|
lcd_setfgcolor (CONSOLE_COLOR_BLACK);
|
|
lcd_setbgcolor (CONSOLE_COLOR_WHITE);
|
|
#else
|
|
lcd_setfgcolor (CONSOLE_COLOR_WHITE);
|
|
lcd_setbgcolor (CONSOLE_COLOR_BLACK);
|
|
#endif /* CFG_WHITE_ON_BLACK */
|
|
|
|
#ifdef LCD_TEST_PATTERN
|
|
test_pattern();
|
|
#else
|
|
/* set framebuffer to background color */
|
|
memset ((char *)lcd_base,
|
|
COLOR_MASK(lcd_getbgcolor()),
|
|
lcd_line_length*panel_info.vl_row);
|
|
#endif
|
|
|
|
lcd_enable ();
|
|
|
|
/* Paint the logo and retrieve LCD base address */
|
|
debug ("[LCD] Drawing the logo...\n");
|
|
lcd_console_address = lcd_logo ();
|
|
|
|
/* Initialize the console */
|
|
console_col = 0;
|
|
#ifdef LCD_INFO_BELOW_LOGO
|
|
console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
|
|
#else
|
|
console_row = 1; /* leave 1 blank line below logo */
|
|
#endif
|
|
lcd_is_enabled = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* ** ROM capable initialization part - needed to reserve FB memory */
|
|
/************************************************************************/
|
|
|
|
/*
|
|
* This is called early in the system initialization to grab memory
|
|
* for the LCD controller.
|
|
* Returns new address for monitor, after reserving LCD buffer memory
|
|
*
|
|
* Note that this is running from ROM, so no write access to global data.
|
|
*/
|
|
ulong lcd_setmem (ulong addr)
|
|
{
|
|
ulong size;
|
|
int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
|
|
|
|
debug ("LCD panel info: %d x %d, %d bit/pix\n",
|
|
panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
|
|
|
|
/* extra page for dma descriptors and palette */
|
|
size = line_length * panel_info.vl_row + PAGE_SIZE;
|
|
|
|
/* Round up to nearest full page */
|
|
size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
|
|
|
|
/* Allocate pages for the frame buffer. */
|
|
addr -= size;
|
|
|
|
debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
|
|
|
|
return (addr);
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* ----------------- chipset specific functions ----------------------- */
|
|
/************************************************************************/
|
|
|
|
static void lcd_ctrl_init (void *lcdbase)
|
|
{
|
|
pxafb_init_mem(lcdbase, &panel_info);
|
|
pxafb_init(&panel_info);
|
|
pxafb_setup_gpio(&panel_info);
|
|
pxafb_enable_controller(&panel_info);
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
#ifdef NOT_USED_SO_FAR
|
|
static void
|
|
lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue)
|
|
{
|
|
}
|
|
#endif /* NOT_USED_SO_FAR */
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
#if LCD_BPP == LCD_COLOR8
|
|
static void
|
|
lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
|
|
{
|
|
struct pxafb_info *fbi = &panel_info.pxa;
|
|
unsigned short *palette = (unsigned short *)fbi->palette;
|
|
u_int val;
|
|
|
|
if (regno < fbi->palette_size) {
|
|
val = ((red << 8) & 0xf800);
|
|
val |= ((green << 4) & 0x07e0);
|
|
val |= (blue & 0x001f);
|
|
|
|
#ifdef LCD_INVERT_COLORS
|
|
palette[regno] = ~val;
|
|
#else
|
|
palette[regno] = ~val;
|
|
#endif
|
|
}
|
|
|
|
debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %04X\n",
|
|
regno, &palette[regno],
|
|
red, green, blue,
|
|
palette[regno]);
|
|
}
|
|
#endif /* LCD_COLOR8 */
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
#if LCD_BPP == LCD_MONOCHROME
|
|
static
|
|
void lcd_initcolregs (void)
|
|
{
|
|
volatile immap_t *immr = (immap_t *) CFG_IMMR;
|
|
volatile cpm8xx_t *cp = &(immr->im_cpm);
|
|
ushort regno;
|
|
|
|
for (regno = 0; regno < 16; regno++) {
|
|
cp->lcd_cmap[regno * 2] = 0;
|
|
cp->lcd_cmap[(regno * 2) + 1] = regno & 0x0f;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
static void lcd_setfgcolor (int color)
|
|
{
|
|
lcd_color_fg = color & 0x0F;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
static void lcd_setbgcolor (int color)
|
|
{
|
|
lcd_color_bg = color & 0x0F;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
#ifdef NOT_USED_SO_FAR
|
|
static int lcd_getfgcolor (void)
|
|
{
|
|
return lcd_color_fg;
|
|
}
|
|
#endif /* NOT_USED_SO_FAR */
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
#ifdef NOT_USED_SO_FAR
|
|
static int lcd_getbgcolor (void)
|
|
{
|
|
return lcd_color_bg;
|
|
}
|
|
#endif /* NOT_USED_SO_FAR */
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
static void lcd_enable (void)
|
|
{
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
#ifdef NOT_USED_SO_FAR
|
|
static void lcd_disable (void)
|
|
{
|
|
}
|
|
#endif /* NOT_USED_SO_FAR */
|
|
|
|
|
|
/************************************************************************/
|
|
/* ** Chipset depending Bitmap / Logo stuff... */
|
|
/************************************************************************/
|
|
|
|
#ifdef CONFIG_LCD_LOGO
|
|
static void bitmap_plot (int x, int y)
|
|
{
|
|
ushort *cmap;
|
|
ushort i;
|
|
uchar *bmap;
|
|
uchar *fb;
|
|
struct pxafb_info *fbi = &panel_info.pxa;
|
|
|
|
debug ("Logo: width %d height %d colors %d cmap %d\n",
|
|
BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
|
|
sizeof(bmp_logo_palette)/(sizeof(ushort))
|
|
);
|
|
|
|
/* Leave room for default color map */
|
|
cmap = (ushort *)fbi->palette;
|
|
|
|
/* Set color map */
|
|
for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
|
|
ushort colreg = bmp_logo_palette[i];
|
|
#ifdef CFG_INVERT_COLORS
|
|
colreg ^= 0xFFF;
|
|
#endif
|
|
*cmap++ = colreg;
|
|
}
|
|
|
|
bmap = &bmp_logo_bitmap[0];
|
|
fb = (char *)(lcd_base + y * lcd_line_length + x);
|
|
|
|
for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
|
|
memcpy (fb, bmap, BMP_LOGO_WIDTH);
|
|
bmap += BMP_LOGO_WIDTH;
|
|
fb += panel_info.vl_col;
|
|
}
|
|
}
|
|
#endif /* CONFIG_LCD_LOGO */
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
|
|
static void *lcd_logo (void)
|
|
{
|
|
#ifdef CONFIG_LCD_LOGO
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
char info[80];
|
|
char temp[32];
|
|
|
|
bitmap_plot (0, 0);
|
|
#endif /* CONFIG_LCD_LOGO */
|
|
|
|
#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
|
|
return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
|
|
#else
|
|
return ((void *)lcd_base);
|
|
#endif /* CONFIG_LCD_LOGO */
|
|
}
|
|
|
|
/************************************************************************
|
|
PXA255 specific routines
|
|
************************************************************************/
|
|
|
|
static int pxafb_init_mem(void *lcdbase, vidinfo_t *vid)
|
|
{
|
|
u_long palette_mem_size;
|
|
struct pxafb_info *fbi = &vid->pxa;
|
|
int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
|
|
|
|
fbi->screen = (u_long)lcdbase;
|
|
|
|
fbi->palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
|
|
palette_mem_size = fbi->palette_size * sizeof(u16);
|
|
debug("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
|
|
/* locate palette and descs at end of page following fb */
|
|
fbi->palette = (u_long)lcdbase + fb_size + 2*PAGE_SIZE - palette_mem_size;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pxafb_setup_gpio(vidinfo_t *vid)
|
|
{
|
|
u_long lccr0;
|
|
|
|
/*
|
|
* setup is based on type of panel supported
|
|
*/
|
|
|
|
lccr0 = vid->pxa.reg_lccr0;
|
|
|
|
/* 4 bit interface */
|
|
if ((lccr0 & LCCR0_CMS) && (lccr0 & LCCR0_SDS) && !(lccr0 & LCCR0_DPD))
|
|
{
|
|
debug("Setting GPIO for 4 bit data\n");
|
|
/* bits 58-61 */
|
|
GPDR1 |= (0xf << 26);
|
|
GAFR1_U = (GAFR1_U & ~(0xff << 20)) | (0xaa << 20);
|
|
|
|
/* bits 74-77 */
|
|
GPDR2 |= (0xf << 10);
|
|
GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20);
|
|
}
|
|
|
|
/* 8 bit interface */
|
|
else if (((lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_DPD))) ||
|
|
(!(lccr0 & LCCR0_CMS) && !(lccr0 & LCCR0_PAS) && !(lccr0 & LCCR0_SDS)))
|
|
{
|
|
debug("Setting GPIO for 8 bit data\n");
|
|
/* bits 58-65 */
|
|
GPDR1 |= (0x3f << 26);
|
|
GPDR2 |= (0x3);
|
|
|
|
GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20);
|
|
GAFR2_L = (GAFR2_L & ~0xf) | (0xa);
|
|
|
|
/* bits 74-77 */
|
|
GPDR2 |= (0xf << 10);
|
|
GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20);
|
|
}
|
|
|
|
/* 16 bit interface */
|
|
else if (!(lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_PAS)))
|
|
{
|
|
debug("Setting GPIO for 16 bit data\n");
|
|
/* bits 58-77 */
|
|
GPDR1 |= (0x3f << 26);
|
|
GPDR2 |= 0x00003fff;
|
|
|
|
GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20);
|
|
GAFR2_L = (GAFR2_L & 0xf0000000) | 0x0aaaaaaa;
|
|
}
|
|
else
|
|
{
|
|
printf("pxafb_setup_gpio: unable to determine bits per pixel\n");
|
|
}
|
|
}
|
|
|
|
static void pxafb_enable_controller(vidinfo_t *vid)
|
|
{
|
|
debug("Enabling LCD controller\n");
|
|
|
|
/* Sequence from 11.7.10 */
|
|
LCCR3 = vid->pxa.reg_lccr3;
|
|
LCCR2 = vid->pxa.reg_lccr2;
|
|
LCCR1 = vid->pxa.reg_lccr1;
|
|
LCCR0 = vid->pxa.reg_lccr0 & ~LCCR0_ENB;
|
|
FDADR0 = vid->pxa.fdadr0;
|
|
FDADR1 = vid->pxa.fdadr1;
|
|
LCCR0 |= LCCR0_ENB;
|
|
|
|
CKEN |= CKEN16_LCD;
|
|
|
|
debug("FDADR0 = 0x%08x\n", (unsigned int)FDADR0);
|
|
debug("FDADR1 = 0x%08x\n", (unsigned int)FDADR1);
|
|
debug("LCCR0 = 0x%08x\n", (unsigned int)LCCR0);
|
|
debug("LCCR1 = 0x%08x\n", (unsigned int)LCCR1);
|
|
debug("LCCR2 = 0x%08x\n", (unsigned int)LCCR2);
|
|
debug("LCCR3 = 0x%08x\n", (unsigned int)LCCR3);
|
|
}
|
|
|
|
static int pxafb_init(vidinfo_t *vid)
|
|
{
|
|
struct pxafb_info *fbi = &vid->pxa;
|
|
|
|
debug("Configuring PXA LCD\n");
|
|
|
|
fbi->reg_lccr0 = REG_LCCR0;
|
|
fbi->reg_lccr3 = REG_LCCR3;
|
|
|
|
debug("vid: vl_col=%d hslen=%d lm=%d rm=%d\n",
|
|
vid->vl_col, vid->vl_hpw,
|
|
vid->vl_blw, vid->vl_elw);
|
|
debug("vid: vl_row=%d vslen=%d um=%d bm=%d\n",
|
|
vid->vl_row, vid->vl_vpw,
|
|
vid->vl_bfw, vid->vl_efw);
|
|
|
|
fbi->reg_lccr1 =
|
|
LCCR1_DisWdth(vid->vl_col) +
|
|
LCCR1_HorSnchWdth(vid->vl_hpw) +
|
|
LCCR1_BegLnDel(vid->vl_blw) +
|
|
LCCR1_EndLnDel(vid->vl_elw);
|
|
|
|
fbi->reg_lccr2 =
|
|
LCCR2_DisHght(vid->vl_row) +
|
|
LCCR2_VrtSnchWdth(vid->vl_vpw) +
|
|
LCCR2_BegFrmDel(vid->vl_bfw) +
|
|
LCCR2_EndFrmDel(vid->vl_efw);
|
|
|
|
fbi->reg_lccr3 = REG_LCCR3 & ~(LCCR3_HSP | LCCR3_VSP);
|
|
fbi->reg_lccr3 |=
|
|
(vid->vl_hsp ? LCCR3_HorSnchL : LCCR3_HorSnchH)
|
|
| (vid->vl_vsp ? LCCR3_VrtSnchL : LCCR3_VrtSnchH);
|
|
|
|
|
|
/* setup dma descriptors */
|
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fbi->dmadesc_fblow = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
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fbi->dmadesc_fbhigh = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
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fbi->dmadesc_palette = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
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#define BYTES_PER_PANEL ((fbi->reg_lccr0 & LCCR0_SDS) ? \
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(vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8 / 2) : \
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(vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8))
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/* populate descriptors */
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fbi->dmadesc_fblow->fdadr = (u_long)fbi->dmadesc_fblow;
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fbi->dmadesc_fblow->fsadr = fbi->screen + BYTES_PER_PANEL;
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fbi->dmadesc_fblow->fidr = 0;
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fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL;
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fbi->fdadr1 = (u_long)fbi->dmadesc_fblow; /* only used in dual-panel mode */
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fbi->dmadesc_fbhigh->fsadr = fbi->screen;
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fbi->dmadesc_fbhigh->fidr = 0;
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fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL;
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fbi->dmadesc_palette->fsadr = fbi->palette;
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fbi->dmadesc_palette->fidr = 0;
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fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL;
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if( NBITS(vid->vl_bpix) < 12)
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{
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/* assume any mode with <12 bpp is palette driven */
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fbi->dmadesc_palette->fdadr = (u_long)fbi->dmadesc_fbhigh;
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fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_palette;
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/* flips back and forth between pal and fbhigh */
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fbi->fdadr0 = (u_long)fbi->dmadesc_palette;
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}
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else
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{
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/* palette shouldn't be loaded in true-color mode */
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fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_fbhigh;
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fbi->fdadr0 = (u_long)fbi->dmadesc_fbhigh; /* no pal just fbhigh */
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}
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debug("fbi->dmadesc_fblow = 0x%lx\n", (u_long)fbi->dmadesc_fblow);
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debug("fbi->dmadesc_fbhigh = 0x%lx\n", (u_long)fbi->dmadesc_fbhigh);
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debug("fbi->dmadesc_palette = 0x%lx\n", (u_long)fbi->dmadesc_palette);
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|
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debug("fbi->dmadesc_fblow->fdadr = 0x%lx\n", fbi->dmadesc_fblow->fdadr);
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debug("fbi->dmadesc_fbhigh->fdadr = 0x%lx\n", fbi->dmadesc_fbhigh->fdadr);
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debug("fbi->dmadesc_palette->fdadr = 0x%lx\n", fbi->dmadesc_palette->fdadr);
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|
|
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debug("fbi->dmadesc_fblow->fsadr = 0x%lx\n", fbi->dmadesc_fblow->fsadr);
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debug("fbi->dmadesc_fbhigh->fsadr = 0x%lx\n", fbi->dmadesc_fbhigh->fsadr);
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debug("fbi->dmadesc_palette->fsadr = 0x%lx\n", fbi->dmadesc_palette->fsadr);
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|
|
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debug("fbi->dmadesc_fblow->ldcmd = 0x%lx\n", fbi->dmadesc_fblow->ldcmd);
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debug("fbi->dmadesc_fbhigh->ldcmd = 0x%lx\n", fbi->dmadesc_fbhigh->ldcmd);
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debug("fbi->dmadesc_palette->ldcmd = 0x%lx\n", fbi->dmadesc_palette->ldcmd);
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|
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return 0;
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|
}
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|
|
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/************************************************************************/
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/************************************************************************/
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#endif /* CONFIG_LCD */
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