112 lines
2.4 KiB
C
112 lines
2.4 KiB
C
#include "lcdc.h"
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#include <sep4020.h>
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#define writel(DATA,ADDRESS) *((volatile rt_off_t *) ADDRESS)= DATA;
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unsigned long pVideoBuffer;
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rt_err_t sep4020_lcd_init(void)
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{
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pVideoBuffer =(unsigned long) rt_malloc(LCDWIDTH*LCDHEIGHT*2);
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*(RP)GPIO_PORTC_SEL |= 0X0008; //Portc8设置为通用口
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*(RP)GPIO_PORTC_DIR &= (~0X0008); //Portc8设置为输出
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*(RP)GPIO_PORTC_DATA |= 0X0008; //Portc8输出高电平
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writel(0x00000000,LCDC_LECR); //禁用LCDC
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writel(pVideoBuffer,LCDC_SSA); //lcd数据帧的起始地址
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writel(YMAX | XMAX,LCDC_SIZE);
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writel(TFT|COLOR|PBSIZE|BPIX|PIXPOL|FLMPOL|LPPOL|CLKPOL|OEPOL|END_SEL|ACD_SEL|ACD|PCD,LCDC_PCR);
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writel(H_WIDTH|H_WAIT_1|H_WAIT_2,LCDC_HCR);
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writel(V_WIDTH|PASS_FRAME_WAIT|V_WAIT_1|V_WAIT_2,LCDC_VCR);
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writel(SCR|CC_EN|PW,LCDC_PWMR);
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writel(BL|HM|TM,LCDC_DMACR);
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writel(0x00000001,LCDC_LECR); //使能LCDC
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writel(0x00000000,LCDC_LCDISREN); //中断在加载帧的最后一个或第一个数据时设置，到LCD之间会有一个延时
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return RT_EOK;
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}
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void lcd_set_pixel(rtgui_color_t *c, int x,int y)
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{
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unsigned short p;
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/* get color pixel */
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p = rtgui_color_to_565p(*c);
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*(unsigned short *)(pVideoBuffer+2*y*LCDWIDTH+2*x)=p;
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}
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void lcd_get_pixel(rtgui_color_t *c, int x, int y)
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{
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*c = rtgui_color_from_565p( *(unsigned short *)(pVideoBuffer+2*y*LCDWIDTH+2*x));
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}
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void lcd_draw_hline(rtgui_color_t *c, int x1, int x2, int y)
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{
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unsigned short p;
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/* get color pixel */
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p = rtgui_color_to_565p(*c);
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while (x1 < x2)
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{
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*(unsigned short *)(pVideoBuffer+2*y*LCDWIDTH+2*x1)=p;
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x1 ++;
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}
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}
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void lcd_draw_vline(rtgui_color_t *c, int x, int y1, int y2)
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{
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unsigned short p;
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/* get color pixel */
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p = rtgui_color_to_565p(*c);
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while (y1 < y2)
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{
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*(unsigned short *)(pVideoBuffer+2*y1*LCDWIDTH+2*x)=p;
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y1 ++;
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}
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}
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void lcd_draw_raw_hline(rt_uint8_t *pixels, int x1, int x2, int y)
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{
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rt_uint16_t *ptr;
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/* get pixel */
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ptr = (rt_uint16_t*) pixels;
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while (x1 < x2)
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{
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*(unsigned short *)(pVideoBuffer+2*y*LCDWIDTH+2*x1)=*ptr;
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x1 ++;
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ptr ++;
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}
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}
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void lcd_update(rtgui_rect_t *rect)
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{
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/* nothing for none-DMA mode driver */
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}
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rt_uint8_t * lcd_get_framebuffer(void)
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{
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return RT_NULL; /* no framebuffer driver */
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}
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