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+/*
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+ * File : lcd_t35.c
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+ * This file is part of RT-Thread RTOS
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+ * COPYRIGHT (C) 2010, RT-Thread Develop Team
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+ *
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+ * The license and distribution terms for this file may be
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+ * found in the file LICENSE in this distribution or at
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+ * http://www.rt-thread.org/license/LICENSE
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+ *
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+ * Change Logs:
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+ * Date Author Notes
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+ * 2010-01-01 bernard first version from QiuYi's driver
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+ */
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+
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+#include <rtthread.h>
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+
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+#include <s3c24x0.h>
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+
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+/* LCD driver for A7' */
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+#define LCD_WIDTH 800
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+#define LCD_HEIGHT 480
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+#define LCD_PIXCLOCK 2
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+
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+#define LCD_RIGHT_MARGIN 67
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+#define LCD_LEFT_MARGIN 40
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+#define LCD_HSYNC_LEN 31
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+
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+#define LCD_UPPER_MARGIN 25
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+#define LCD_LOWER_MARGIN 5
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+#define LCD_VSYNC_LEN 1
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+
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+#define LCD_XSIZE LCD_WIDTH
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+#define LCD_YSIZE LCD_HEIGHT
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+#define SCR_XSIZE LCD_WIDTH
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+#define SCR_YSIZE LCD_HEIGHT
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+
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+#define RT_HW_LCD_WIDTH LCD_WIDTH
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+#define RT_HW_LCD_HEIGHT LCD_HEIGHT
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+
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+#define MVAL (13)
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+#define MVAL_USED (0) //0=each frame 1=rate by MVAL
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+#define INVVDEN (1) //0=normal 1=inverted
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+#define BSWP (0) //Byte swap control
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+#define HWSWP (1) //Half word swap control
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+
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+#define GPB1_TO_OUT() (GPBUP &= 0xfffd, GPBCON &= 0xfffffff3, GPBCON |= 0x00000004)
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+#define GPB1_TO_1() (GPBDAT |= 0x0002)
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+#define GPB1_TO_0() (GPBDAT &= 0xfffd)
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+
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+#define S3C2410_LCDCON1_CLKVAL(x) ((x) << 8)
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+#define S3C2410_LCDCON1_MMODE (1<<7)
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+#define S3C2410_LCDCON1_DSCAN4 (0<<5)
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+#define S3C2410_LCDCON1_STN4 (1<<5)
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+#define S3C2410_LCDCON1_STN8 (2<<5)
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+#define S3C2410_LCDCON1_TFT (3<<5)
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+
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+#define S3C2410_LCDCON1_STN1BPP (0<<1)
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+#define S3C2410_LCDCON1_STN2GREY (1<<1)
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+#define S3C2410_LCDCON1_STN4GREY (2<<1)
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+#define S3C2410_LCDCON1_STN8BPP (3<<1)
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+#define S3C2410_LCDCON1_STN12BPP (4<<1)
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+
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+#define S3C2410_LCDCON1_TFT1BPP (8<<1)
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+#define S3C2410_LCDCON1_TFT2BPP (9<<1)
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+#define S3C2410_LCDCON1_TFT4BPP (10<<1)
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+#define S3C2410_LCDCON1_TFT8BPP (11<<1)
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+#define S3C2410_LCDCON1_TFT16BPP (12<<1)
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+#define S3C2410_LCDCON1_TFT24BPP (13<<1)
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+
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+#define S3C2410_LCDCON1_ENVID (1)
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+
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+#define S3C2410_LCDCON1_MODEMASK 0x1E
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+
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+#define S3C2410_LCDCON2_VBPD(x) ((x) << 24)
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+#define S3C2410_LCDCON2_LINEVAL(x) ((x) << 14)
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+#define S3C2410_LCDCON2_VFPD(x) ((x) << 6)
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+#define S3C2410_LCDCON2_VSPW(x) ((x) << 0)
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+
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+#define S3C2410_LCDCON2_GET_VBPD(x) ( ((x) >> 24) & 0xFF)
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+#define S3C2410_LCDCON2_GET_VFPD(x) ( ((x) >> 6) & 0xFF)
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+#define S3C2410_LCDCON2_GET_VSPW(x) ( ((x) >> 0) & 0x3F)
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+
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+#define S3C2410_LCDCON3_HBPD(x) ((x) << 19)
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+#define S3C2410_LCDCON3_WDLY(x) ((x) << 19)
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+#define S3C2410_LCDCON3_HOZVAL(x) ((x) << 8)
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+#define S3C2410_LCDCON3_HFPD(x) ((x) << 0)
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+#define S3C2410_LCDCON3_LINEBLANK(x)((x) << 0)
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+
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+#define S3C2410_LCDCON3_GET_HBPD(x) ( ((x) >> 19) & 0x7F)
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+#define S3C2410_LCDCON3_GET_HFPD(x) ( ((x) >> 0) & 0xFF)
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+
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+#define S3C2410_LCDCON4_MVAL(x) ((x) << 8)
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+#define S3C2410_LCDCON4_HSPW(x) ((x) << 0)
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+#define S3C2410_LCDCON4_WLH(x) ((x) << 0)
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+
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+#define S3C2410_LCDCON4_GET_HSPW(x) ( ((x) >> 0) & 0xFF)
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+
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+#define S3C2410_LCDCON5_BPP24BL (1<<12)
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+#define S3C2410_LCDCON5_FRM565 (1<<11)
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+#define S3C2410_LCDCON5_INVVCLK (1<<10)
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+#define S3C2410_LCDCON5_INVVLINE (1<<9)
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+#define S3C2410_LCDCON5_INVVFRAME (1<<8)
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+#define S3C2410_LCDCON5_INVVD (1<<7)
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+#define S3C2410_LCDCON5_INVVDEN (1<<6)
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+#define S3C2410_LCDCON5_INVPWREN (1<<5)
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+#define S3C2410_LCDCON5_INVLEND (1<<4)
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+#define S3C2410_LCDCON5_PWREN (1<<3)
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+#define S3C2410_LCDCON5_ENLEND (1<<2)
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+#define S3C2410_LCDCON5_BSWP (1<<1)
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+#define S3C2410_LCDCON5_HWSWP (1<<0)
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+
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+#define S3C2410_LCDINT_FRSYNC (1<<1)
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+
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+volatile rt_uint16_t _rt_hw_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];
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+
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+void lcd_power_enable(int invpwren,int pwren)
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+{
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+ //GPG4 is setted as LCD_PWREN
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+ GPGUP = GPGUP | (1<<4); // Pull-up disable
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+ GPGCON = GPGCON | (3<<8); //GPG4=LCD_PWREN
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+
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+ //Enable LCD POWER ENABLE Function
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+ LCDCON5 = LCDCON5&(~(1<<3))|(pwren<<3); // PWREN
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+ LCDCON5 = LCDCON5&(~(1<<5))|(invpwren<<5); // INVPWREN
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+}
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+
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+void lcd_envid_on_off(int onoff)
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+{
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+ if(onoff==1)
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+ /*ENVID=ON*/
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+ LCDCON1|=1;
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+ else
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+ /*ENVID Off*/
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+ LCDCON1 =LCDCON1 & 0x3fffe;
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+}
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+
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+//********************** BOARD LCD backlight ****************************
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+void LcdBkLtSet(rt_uint32_t HiRatio)
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+{
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+#define FREQ_PWM1 1000
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+ if(!HiRatio)
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+ {
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+ GPBCON = GPBCON & (~(3<<2)) | (1<<2) ; //GPB1ÉèÖÃΪoutput
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+ GPBDAT &= ~(1<<1);
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+ return;
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+ }
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+ GPBCON = GPBCON & (~(3<<2)) | (2<<2) ;
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+
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+ if( HiRatio > 100 ) HiRatio = 100 ;
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+
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+ TCON = TCON & (~(0xf<<8)) ; // clear manual update bit, stop Timer1
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+
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+ TCFG0 &= 0xffffff00; // set Timer 0&1 prescaler 0
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+ TCFG0 |= 15; //prescaler = 15+1
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+
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+ TCFG1 &= 0xffffff0f; // set Timer 1 MUX 1/16
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+ TCFG1 |= 0x00000030; // set Timer 1 MUX 1/16
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+
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+ TCNTB1 = ( 100000000>>8 )/FREQ_PWM1; //if set inverter off, when TCNT2<=TCMP2, TOUT is high, TCNT2>TCMP2, TOUT is low
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+ TCMPB1 = ( TCNTB1*(100-HiRatio))/100 ; //if set inverter on, when TCNT2<=TCMP2, TOUT is low, TCNT2>TCMP2, TOUT is high
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+
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+ TCON = TCON & (~(0xf<<8)) | (0x0e<<8) ;
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+ TCON = TCON & (~(0xf<<8)) | (0x0d<<8) ;
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+}
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+
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+#ifdef RT_USING_RTGUI
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+
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+#include <rtgui/driver.h>
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+#include <rtgui/color.h>
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+
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+void rt_hw_lcd_update(rtgui_rect_t *rect)
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+{
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+ /* nothing */
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+}
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+
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+rt_uint8_t * rt_hw_lcd_get_framebuffer(void)
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+{
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+ return (rt_uint8_t *)_rt_hw_framebuffer;
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+}
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+
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+void rt_hw_lcd_set_pixel(rtgui_color_t *c, rt_base_t x, rt_base_t y)
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+{
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+ if (x < RT_HW_LCD_WIDTH && y < RT_HW_LCD_HEIGHT)
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+ {
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+ _rt_hw_framebuffer[(y)][(x)] = rtgui_color_to_565p(*c);
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+ }
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+}
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+
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+void rt_hw_lcd_get_pixel(rtgui_color_t *c, rt_base_t x, rt_base_t y)
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+{
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+ if (x < RT_HW_LCD_WIDTH && y < RT_HW_LCD_HEIGHT)
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+ {
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+ *c = rtgui_color_from_565p(_rt_hw_framebuffer[(y)][(x)]);
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+ }
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+
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+ return ;
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+}
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+
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+void rt_hw_lcd_draw_hline(rtgui_color_t *c, rt_base_t x1, rt_base_t x2, rt_base_t y)
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+{
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+ rt_uint32_t idx;
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+ rt_uint16_t color;
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+
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+ /* get color pixel */
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+ color = rtgui_color_to_565p(*c);
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+
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+ for (idx = x1; idx < x2; idx ++)
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+ {
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+ _rt_hw_framebuffer[y][idx] = color;
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+ }
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+}
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+
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+void rt_hw_lcd_draw_vline(rtgui_color_t *c, rt_base_t x, rt_base_t y1, rt_base_t y2)
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+{
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+ rt_uint32_t idy;
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+ rt_uint16_t color;
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+
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+ /* get color pixel */
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+ color = rtgui_color_to_565p(*c);
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+
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+ for (idy = y1; idy < y2; idy ++)
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+ {
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+ _rt_hw_framebuffer[idy][x] = color;
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+ }
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+}
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+
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+void rt_hw_lcd_draw_raw_hline(rt_uint8_t *pixels, rt_base_t x1, rt_base_t x2, rt_base_t y)
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+{
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+ rt_memcpy((void*)&_rt_hw_framebuffer[y][x1], pixels, (x2 - x1) * 2);
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+}
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+
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+struct rtgui_graphic_driver _rtgui_lcd_driver =
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+{
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+ "lcd",
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+ 2,
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+ RT_HW_LCD_WIDTH,
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+ RT_HW_LCD_HEIGHT,
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+ rt_hw_lcd_update,
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+ rt_hw_lcd_get_framebuffer,
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+ rt_hw_lcd_set_pixel,
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+ rt_hw_lcd_get_pixel,
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+ rt_hw_lcd_draw_hline,
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+ rt_hw_lcd_draw_vline,
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+ rt_hw_lcd_draw_raw_hline
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+};
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+
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+#include "finsh.h"
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+void hline(rt_uint32_t c, int x1, int x2, int y)
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+{
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+ rtgui_color_t color = (rtgui_color_t)c;
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+ rt_hw_lcd_draw_hline(&color, x1, x2, y);
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+}
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+FINSH_FUNCTION_EXPORT(hline, draw a hline);
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+
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+void vline(rt_uint32_t c, int x, int y1, int y2)
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+{
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+ rtgui_color_t color = (rtgui_color_t)c;
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+ rt_hw_lcd_draw_vline(&color, x, y1, y2);
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+}
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+FINSH_FUNCTION_EXPORT(vline, draw a vline);
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+
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+void clear()
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+{
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+ int y;
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+
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+ for (y = 0; y < 320; y ++)
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+ {
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+ rt_hw_lcd_draw_hline((rtgui_color_t*)&white, 0, 240, y);
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+ }
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+}
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+FINSH_FUNCTION_EXPORT(clear, clear screen);
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+
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+void rt_hw_lcd_init()
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+{
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+ GPB1_TO_OUT();
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+ GPB1_TO_1();
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+
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+ GPCUP = 0x00000000;
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+ GPCCON = 0xaaaa02a9;
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+
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+ GPDUP = 0x00000000;
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+ GPDCON = 0xaaaaaaaa;
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+
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+#define M5D(n) ((n)&0x1fffff)
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+#define LCD_ADDR ((rt_uint32_t)_rt_hw_framebuffer)
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+ LCDCON1 = (LCD_PIXCLOCK << 8) | (3 << 5) | (12 << 1);
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+ LCDCON2 = (LCD_UPPER_MARGIN << 24) | ((LCD_HEIGHT - 1) << 14) | (LCD_LOWER_MARGIN << 6) | (LCD_VSYNC_LEN << 0);
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+ LCDCON3 = (LCD_RIGHT_MARGIN << 19) | ((LCD_WIDTH - 1) << 8) | (LCD_LEFT_MARGIN << 0);
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+ LCDCON4 = (13 << 8) | (LCD_HSYNC_LEN << 0);
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+#if !defined(LCD_CON5)
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+ #define LCD_CON5 ((1<<11) | (1 << 9) | (1 << 8) | (1 << 3) | (1 << 0))
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+#endif
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+ LCDCON5 = LCD_CON5;
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+
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+ LCDSADDR1 = ((LCD_ADDR >> 22) << 21) | ((M5D(LCD_ADDR >> 1)) << 0);
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+ LCDSADDR2 = M5D((LCD_ADDR + LCD_WIDTH * LCD_HEIGHT * 2) >> 1);
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+ LCDSADDR3 = LCD_WIDTH;
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+
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+ LCDINTMSK |= (3);
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+ LPCSEL &= (~7) ;
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+ TPAL=0;
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+
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+ LcdBkLtSet(70) ;
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+ lcd_power_enable(0, 1);
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+ lcd_envid_on_off(1);
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+
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+ /* add lcd driver into graphic driver */
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+ rtgui_graphic_driver_add(&_rtgui_lcd_driver);
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+}
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+
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+#endif
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bernard.xiong