251 lines
7.3 KiB
C
251 lines
7.3 KiB
C
/*
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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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#include <rtthread.h>
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#include <s3c24x0.h>
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#include "lcd.h"
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/* LCD driver for T3'5 */
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#define LCD_WIDTH 240
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#define LCD_HEIGHT 320
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#define LCD_PIXCLOCK 4
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#define LCD_RIGHT_MARGIN 25
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#define LCD_LEFT_MARGIN 0
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#define LCD_HSYNC_LEN 4
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#define LCD_UPPER_MARGIN 1
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#define LCD_LOWER_MARGIN 4
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#define LCD_VSYNC_LEN 1
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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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#define RT_HW_LCD_WIDTH LCD_WIDTH
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#define RT_HW_LCD_HEIGHT LCD_HEIGHT
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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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#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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#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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#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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#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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#define S3C2410_LCDCON1_ENVID (1)
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#define S3C2410_LCDCON1_MODEMASK 0x1E
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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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#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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#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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#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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#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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#define S3C2410_LCDCON4_GET_HSPW(x) ( ((x) >> 0) & 0xFF)
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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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#define S3C2410_LCDINT_FRSYNC (1<<1)
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volatile rt_uint16_t _rt_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];
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//volatile rt_uint16_t _rt_hw_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];
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static struct rt_device_graphic_info _lcd_info;
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static 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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//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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static 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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//********************** BOARD LCD backlight ****************************
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static 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) ; //GPB1<42><31><EFBFBD><EFBFBD>Ϊoutput
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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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if( HiRatio > 100 ) HiRatio = 100 ;
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TCON = TCON & (~(0xf<<8)) ; // clear manual update bit, stop Timer1
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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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TCFG1 &= 0xffffff0f; // set Timer 1 MUX 1/16
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TCFG1 |= 0x00000030; // set Timer 1 MUX 1/16
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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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TCON = TCON & (~(0xf<<8)) | (0x0e<<8) ;
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TCON = TCON & (~(0xf<<8)) | (0x0d<<8) ;
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}
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/* RT-Thread Device Interface */
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static rt_err_t rt_lcd_init (rt_device_t dev)
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{
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GPB1_TO_OUT();
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GPB1_TO_1();
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GPCUP = 0x00000000;
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GPCCON = 0xaaaa02a9;
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GPDUP = 0x00000000;
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GPDCON = 0xaaaaaaaa;
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#define M5D(n) ((n)&0x1fffff)
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#define LCD_ADDR ((rt_uint32_t)_rt_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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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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LCDINTMSK |= (3);
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LPCSEL &= (~7) ;
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TPAL=0;
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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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return RT_EOK;
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}
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static rt_err_t rt_lcd_control (rt_device_t dev, rt_uint8_t cmd, void *args)
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{
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switch (cmd)
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{
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case RTGRAPHIC_CTRL_RECT_UPDATE:
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break;
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case RTGRAPHIC_CTRL_POWERON:
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break;
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case RTGRAPHIC_CTRL_POWEROFF:
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break;
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case RTGRAPHIC_CTRL_GET_INFO:
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rt_memcpy(args, &_lcd_info, sizeof(_lcd_info));
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break;
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case RTGRAPHIC_CTRL_SET_MODE:
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break;
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}
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return RT_EOK;
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}
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void rt_hw_lcd_init(void)
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{
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rt_device_t lcd = rt_malloc(sizeof(struct rt_device));
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if (lcd == RT_NULL) return; /* no memory yet */
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_lcd_info.bits_per_pixel = 16;
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_lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
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_lcd_info.framebuffer = (void*)_rt_framebuffer;
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_lcd_info.width = LCD_WIDTH;
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_lcd_info.height = LCD_HEIGHT;
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/* init device structure */
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lcd->type = RT_Device_Class_Unknown;
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lcd->init = rt_lcd_init;
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lcd->open = RT_NULL;
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lcd->close = RT_NULL;
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lcd->control = rt_lcd_control;
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lcd->user_data = (void*)&_lcd_info;
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/* register lcd device to RT-Thread */
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rt_device_register(lcd, "lcd", RT_DEVICE_FLAG_RDWR);
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}
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