int mymain(void)
{
char * p = (char *)BMP_ADDR;
char red, blue, green;
int color;
int i, j;
puts("vga init\n");
vga_init();
puts("lcd init\n");
lcd_init();
lcd_clear_screen(0x000000); // black
puts("lcd draw line\n");
lcd_draw_hline(100, 100, 640-100, 0xff0000); // red
lcd_draw_hline(200, 100, 640-100, 0x00ff00); // green
lcd_draw_hline(300, 100, 640-100, 0x0000ff); // blue
lcd_draw_hline(400, 100, 640-100, 0xffffff); // white
lcd_draw_vline(640/2, 50, 480-50, 0xffffff); // white
#define POS 50
#define HALF 20
lcd_draw_cross(POS, POS, HALF);
lcd_draw_cross(POS, 640-POS, HALF);
lcd_draw_cross(480-POS, POS, HALF);
lcd_draw_cross(480-POS, 640-POS, HALF);
//while (1);
// show BMP file
// read bmp file
// bmp file header is 54 bytes
p += 54;
for (i = 0; i < 272; i++)
for (j = 0; j < 480; j++)
{
blue = *p++;
green = *p++;
red = *p++;
color = red << 16 | green << 8 | blue << 0;
lcd_draw_pixel(272-i, j, color);
}
while (1);
return 0;
}
void lcd_draw_cross(int row, int col, int halflen, int color)
{
lcd_draw_hline(row, col-halflen, col+halflen, color);
lcd_draw_vline(col, row-halflen, row+halflen, color);
return;
}
void lcd_draw_cross(int row, int col, int halflen)
{
int color = 0xff0000;
lcd_draw_hline(row, col-halflen, col+halflen, color);
lcd_draw_vline(col, row-halflen, row+halflen, color);
}
int main(void)
{
int c = 0;
init_uart();
// 初始化LCD控制器
lcd_init();
// 打印菜单
while(1)
{
printf("\r\n###############lcd test##############\r\n");
printf("[1] lcd_clear_screen\r\n");
printf("[2] lcd_draw_cross\r\n");
printf("[3] lcd_draw_hline\r\n");
printf("[4] lcd_draw_vline\r\n");
printf("[5] lcd_draw_circle\r\n");
printf("Enter your choice:");
c = getc();
printf("%c\r\n",c);
switch(c)
{
case '1':
// 清屏
lcd_clear_screen(0xFFFFFF);
break;
case '2':
// 划十字
lcd_draw_cross(50, 50, 20, 0x000000);
break;
case '3':
// 划横线
lcd_draw_hline(HEIGHT/2, 100, WIDTHEIGHT-100, 0xff0000);
break;
case '4':
// 划竖线
lcd_draw_vline(WIDTHEIGHT/2, 50, HEIGHT-50, 0xff0000);
break;
case '5':
// 划圆
lcd_draw_circle();
break;
}
}
return 0;
}
int mymain(void)
{
int i;
for (i = 0; i < 0x100000; i++)
{
*(char *)(0x30000000 + i) = 0;
}
#if 0
//*(volatile unsigned int *)0x48000000 = 0x2211d120;
//*(volatile unsigned int *)0x48000004 = 0x00000700;
//*(volatile unsigned int *)0x48000008 = 0x00000700;
//*(volatile unsigned int *)0x4800000c = 0x00000700;
//*(volatile unsigned int *)0x48000010 = 0x00001f4c;
//*(volatile unsigned int *)0x48000014 = 0x00000700;
//*(volatile unsigned int *)0x48000018 = 0x00000700;
//*(volatile unsigned int *)0x4800001c = 0x00018005;
//*(volatile unsigned int *)0x48000020 = 0x00018005;
//*(volatile unsigned int *)0x48000024 = 0x008e0459;
//*(volatile unsigned int *)0x48000028 = 0x00000032;
*(volatile unsigned int *)0x4800002c = 0x00000030;
//*(volatile unsigned int *)0x48000030 = 0x00000030;
;
#endif
#if 0
*(volatile unsigned int *)0x4c000000 = 0x00ffffff;
*(volatile unsigned int *)0x4c000004 = 0x00044011;
*(volatile unsigned int *)0x4c000008 = 0x00038042;
*(volatile unsigned int *)0x4c00000c = 0x00fffff0;
*(volatile unsigned int *)0x4c000010 = 0x00000004;
*(volatile unsigned int *)0x4c000014 = 0x00000007;
*(volatile unsigned int *)0x4c000018 = 0x00000000;
*(volatile unsigned int *)0x4c00001c = 0x00000000;
*(volatile unsigned int *)0x4c000020 = 0x00ffffff;
*(volatile unsigned int *)0x4c000024 = 0x00044011;
;
#endif
#if 0
*(volatile unsigned int *)0x4d000000 = 0x00000000;
*(volatile unsigned int *)0x4d000004 = 0x00000000;
*(volatile unsigned int *)0x4d000008 = 0x00000000;
*(volatile unsigned int *)0x4d00000c = 0x00000000;
*(volatile unsigned int *)0x4d000010 = 0x00000000;
*(volatile unsigned int *)0x4d000014 = 0x00000000;
*(volatile unsigned int *)0x4d000018 = 0x00000000;
*(volatile unsigned int *)0x4d00001c = 0x00000000;
*(volatile unsigned int *)0x4d000020 = 0x00000000;
*(volatile unsigned int *)0x4d000024 = 0x00000000;
*(volatile unsigned int *)0x4d000028 = 0x00000000;
*(volatile unsigned int *)0x4d00002c = 0x0000a5a5;
*(volatile unsigned int *)0x4d000030 = 0x0ba5da65;
*(volatile unsigned int *)0x4d000034 = 0x000a5a5f;
*(volatile unsigned int *)0x4d000038 = 0x00000d6b;
*(volatile unsigned int *)0x4d00003c = 0x0eb7b5ed;
*(volatile unsigned int *)0x4d000040 = 0x00007dbe;
*(volatile unsigned int *)0x4d000044 = 0x0007ebdf;
*(volatile unsigned int *)0x4d000048 = 0x07fdfbfe;
*(volatile unsigned int *)0x4d00004c = 0x00000000;
*(volatile unsigned int *)0x4d000050 = 0x00000000;
*(volatile unsigned int *)0x4d000054 = 0x00000000;
*(volatile unsigned int *)0x4d000058 = 0x00000001;
*(volatile unsigned int *)0x4d00005c = 0x00000003;
*(volatile unsigned int *)0x4d000060 = 0x00000ce6;
*(volatile unsigned int *)0x4d000064 = 0x00000000;
*(volatile unsigned int *)0x4d000068 = 0x00000000;
*(volatile unsigned int *)0x4d00006c = 0x00000000;
*(volatile unsigned int *)0x4d000070 = 0x00000000;
*(volatile unsigned int *)0x4d000074 = 0x00000000;
;
#endif
#if 0
*(volatile unsigned int *)0x56000000 = 0x007fffff;
*(volatile unsigned int *)0x56000004 = 0x00000000;
*(volatile unsigned int *)0x56000008 = 0x00000000;
*(volatile unsigned int *)0x5600000c = 0x00000000;
*(volatile unsigned int *)0x56000010 = 0x002a9655;
*(volatile unsigned int *)0x56000014 = 0x0000028e;
*(volatile unsigned int *)0x56000018 = 0x000007ff;
*(volatile unsigned int *)0x5600001c = 0x00000000;
*(volatile unsigned int *)0x56000020 = 0xaaaaaaaa;
*(volatile unsigned int *)0x56000024 = 0x00000000;
*(volatile unsigned int *)0x56000028 = 0x0000ffff;
*(volatile unsigned int *)0x5600002c = 0x00000000;
*(volatile unsigned int *)0x56000030 = 0xaaaaaaaa;
*(volatile unsigned int *)0x56000034 = 0x00000000;
*(volatile unsigned int *)0x56000038 = 0x0000ffff;
*(volatile unsigned int *)0x5600003c = 0x00000000;
*(volatile unsigned int *)0x56000040 = 0xaaaaaaaa;
*(volatile unsigned int *)0x56000044 = 0x0000cfe5;
*(volatile unsigned int *)0x56000048 = 0x0000ffff;
*(volatile unsigned int *)0x5600004c = 0x00000000;
*(volatile unsigned int *)0x56000050 = 0x000055aa;
*(volatile unsigned int *)0x56000054 = 0x00000005;
*(volatile unsigned int *)0x56000058 = 0x000000ff;
*(volatile unsigned int *)0x5600005c = 0x00000000;
*(volatile unsigned int *)0x56000060 = 0xfd95ffba;
*(volatile unsigned int *)0x56000064 = 0x0000b020;
*(volatile unsigned int *)0x56000068 = 0x0000ffff;
*(volatile unsigned int *)0x5600006c = 0x00000000;
*(volatile unsigned int *)0x56000070 = 0x00000aa0;
*(volatile unsigned int *)0x56000074 = 0x0000013c;
*(volatile unsigned int *)0x56000078 = 0x000007ff;
*(volatile unsigned int *)0x5600007c = 0x00000000;
*(volatile unsigned int *)0x56000080 = 0x00010330;
*(volatile unsigned int *)0x56000084 = 0x00000000;
*(volatile unsigned int *)0x56000088 = 0x00000000;
*(volatile unsigned int *)0x5600008c = 0x00000000;
*(volatile unsigned int *)0x56000090 = 0x00000000;
*(volatile unsigned int *)0x56000094 = 0x00000000;
*(volatile unsigned int *)0x56000098 = 0x00000000;
*(volatile unsigned int *)0x5600009c = 0x00000000;
*(volatile unsigned int *)0x560000a0 = 0x00000000;
*(volatile unsigned int *)0x560000a4 = 0x00fffff0;
*(volatile unsigned int *)0x560000a8 = 0x00080b00;
*(volatile unsigned int *)0x560000ac = 0x0000000b;
*(volatile unsigned int *)0x560000b0 = 0x32440001;
*(volatile unsigned int *)0x560000b4 = 0x00000001;
*(volatile unsigned int *)0x560000b8 = 0x00000000;
*(volatile unsigned int *)0x560000bc = 0x00000000;
*(volatile unsigned int *)0x560000c0 = 0x00b00000;
*(volatile unsigned int *)0x560000c4 = 0x00000000;
*(volatile unsigned int *)0x560000c8 = 0x00000000;
*(volatile unsigned int *)0x560000cc = 0x00000000;
*(volatile unsigned int *)0x560000d0 = 0x02aaaaaa;
*(volatile unsigned int *)0x560000d4 = 0x000007ff;
*(volatile unsigned int *)0x560000d8 = 0x00000000;
*(volatile unsigned int *)0x560000dc = 0x00000000;
*(volatile unsigned int *)0x560000e0 = 0x00000000;
*(volatile unsigned int *)0x560000e4 = 0x00000000;
*(volatile unsigned int *)0x560000e8 = 0x00000000;
*(volatile unsigned int *)0x560000ec = 0x00000000;
*(volatile unsigned int *)0x560000f0 = 0x00000000;
*(volatile unsigned int *)0x560000f4 = 0x00000000;
*(volatile unsigned int *)0x560000f8 = 0x00000000;
*(volatile unsigned int *)0x560000fc = 0x00000000;
*(volatile unsigned int *)0x4c000000 = 0x00ffffff;
*(volatile unsigned int *)0x4c000004 = 0x00044011;
*(volatile unsigned int *)0x4c000008 = 0x00038042;
*(volatile unsigned int *)0x4c00000c = 0x00fffff0;
*(volatile unsigned int *)0x4c000010 = 0x00000004;
*(volatile unsigned int *)0x4c000014 = 0x00000007;
*(volatile unsigned int *)0x4c000018 = 0x00000000;
*(volatile unsigned int *)0x4c00001c = 0x00000000;
#endif
puts("uboot init regs finished \n");
#if 0
*(volatile unsigned int *)0x56000020 = 0xaaaaaaaa;
*(volatile unsigned int *)0x56000024 = 0x00000000;
*(volatile unsigned int *)0x56000028 = 0x0000ffff;
*(volatile unsigned int *)0x56000030 = 0xaaaaaaaa;
*(volatile unsigned int *)0x56000034 = 0x00000000;
*(volatile unsigned int *)0x56000038 = 0x0000ffff;
#endif
puts("vga init\n");
vga_init();
#if 1
puts("lcd init\n");
lcd_init();
lcd_clear_screen(0x000000); // black
puts("lcd draw line\n");
lcd_draw_hline(100, 100, 640-100, 0xff0000); // red
lcd_draw_hline(200, 100, 640-100, 0x00ff00); // green
lcd_draw_hline(300, 100, 640-100, 0x0000ff); // blue
lcd_draw_hline(400, 100, 640-100, 0xffffff); // white
lcd_draw_vline(640/2, 50, 480-50, 0xffffff); // white
#define POS 50
#define HALF 20
lcd_draw_cross(POS, POS, HALF);
lcd_draw_cross(POS, 640-POS, HALF);
lcd_draw_cross(480-POS, POS, HALF);
lcd_draw_cross(480-POS, 640-POS, HALF);
puts("lcd test over\n");
#endif
//while (1);
puts("nand init\n");
// nand read 16M (size = 1M) to sdram BMP_ADDR 0x33000000
nand_init();
// read bmp from 16M
puts("nand read bmp 13M\n");
nand_read(0x1000000, BMP_ADDR, 0xD00000);
puts("nand read bmp finished \n");
// read wav from 32M
nand_read(0x2000000, WAV_ADDR, 0x100000);
#if 0
// show BMP file
puts("draw bmp file\n");
lcd_draw_bmp(BMP_ADDR);
lcd_clear_screen(0x000000); // black
puts("draw bmp file using DMA \n");
lcd_draw_bmp_to_mem(BMP_ADDR, 0x33800000);
dma_memcpy(0x33800000, 0x32000000, 0xFFFFF);
puts("draw bmp file finished \n");
audio_init();
puts("play wav file\n");
play_wav(WAV_ADDR);
puts("play wav file finished \n");
puts("play wav file with DMA \n");
dma_play_wav2(WAV_ADDR);
puts("play wav file with DMA finished \n");
#endif
// deal with IRQ
*(int *)0x18 = 0xE59ff000; // ldr pc, [pc]
*(int *)0x20 = (int)dma_handler;
// unmask
INTMSK &= ~(1<<19);
// enable CPSR IRQ-bit
// write to CPSR with value 0x53
// CPSR = 0x53;
__asm
{
msr CPSR_cxsf, #0x53
}
while (1)
{
puts("while draw bmp file \n");
lcd_draw_bmp(BMP_ADDR);
//lcd_clear_screen(0x000000); // black
delay();
dma_clear_lcd();
}
//while (1)
{
}
while (1);
return 0;
}
int mymain(void)
{
char * p = (char *)BMP_ADDR;
char red, blue, green;
int color;
int i, j;
vga_init();
lcd_init();
lcd_clear_screen(0x000000); // black
draw_xy(0, 0, 0xff0000);
draw_xy(0, 200, 0x00ff00);
draw_xy(300, 0, 0x0000ff);
for (i = -320; i < 320; i++)
for (j = -240; j < 240; j++)
{
double x, y;
int color = 0xff0000;
x = (double)i / (double)150;
y = (double)j / (double)150;
color = get_fratal(x, y);
draw_xy(i, j, color);
//printf("i = %d, j = %d, color = %d \n", i, j, color);
}
while(1);
lcd_draw_hline(100, 100, 640-100, 0xff0000); // red
lcd_draw_hline(200, 100, 640-100, 0x00ff00); // green
lcd_draw_hline(300, 100, 640-100, 0x0000ff); // blue
lcd_draw_hline(400, 100, 640-100, 0xffffff); // white
lcd_draw_vline(640/2, 50, 480-50, 0xffffff); // white
#define POS 50
#define HALF 20
lcd_draw_cross(POS, POS, HALF);
lcd_draw_cross(POS, 640-POS, HALF);
lcd_draw_cross(480-POS, POS, HALF);
lcd_draw_cross(480-POS, 640-POS, HALF);
//while (1);
// show BMP file
// read bmp file
// bmp file header is 54 bytes
p += 54;
for (i = 0; i < 272; i++)
for (j = 0; j < 480; j++)
{
blue = *p++;
green = *p++;
red = *p++;
color = red << 16 | green << 8 | blue << 0;
lcd_draw_pixel(272-i, j, color);
}
while (1);
return 0;
}
static int lcd_init(void)
{
/* 1. 分配一个fb_info */
s3c_lcd = framebuffer_alloc(0, NULL); /* 参数0是额外分配的大小，设置为0 */
/* 2. 设置 */
/* 2.1 设置固定的参数 */
strcpy(s3c_lcd->fix.id, "mylcd");
s3c_lcd->fix.smem_len = 272*480*16/8;
s3c_lcd->fix.type = FB_TYPE_PACKED_PIXELS;
s3c_lcd->fix.visual = FB_VISUAL_TRUECOLOR; /* TFT */
s3c_lcd->fix.line_length = 480*2;
/* 2.2 设置可变的参数 */
s3c_lcd->var.xres = 480;
s3c_lcd->var.yres = 272;
s3c_lcd->var.xres_virtual = 480;
s3c_lcd->var.yres_virtual = 272;
s3c_lcd->var.bits_per_pixel = 16;
/* RGB:565 */
s3c_lcd->var.red.offset = 11;
s3c_lcd->var.red.length = 5;
s3c_lcd->var.green.offset = 5;
s3c_lcd->var.green.length = 6;
s3c_lcd->var.blue.offset = 0;
s3c_lcd->var.blue.length = 5;
s3c_lcd->var.activate = FB_ACTIVATE_NOW;
/* 2.3 设置操作函数 */
s3c_lcd->fbops = &s3c_fb_ops;
/* 2.4 其他的设置 */
//s3c_lcd->pseudo_palette =; //
//s3c_lcd->screen_base = xxx; /* 显存的虚拟地址 */
s3c_lcd->screen_size = 272*480*16/8;
/* 3. 硬件相关的操作 */
/* 3.1 配置GPIO用于LCD */
gpbcon = ioremap(0x56000010, 8);
gpbdat = gpbcon+1;
gpccon = ioremap(0x56000020, 4);
gpdcon = ioremap(0x56000030, 4);
*gpccon = 0xaaaaaaaa; /* GPIO管脚用于VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND */
*gpdcon = 0xaaaaaaaa; /* GPIO管脚用于VD[23:8] */
*gpbcon &= ~(0x03<<(3*2)); /* GPB3设置为输出引脚 */
*gpbcon |= ( 0x1<<(3*2) );
*gpbdat |= (0x1<<3); /* 背光亮 */
/* 3.2 根据LCD手册设置LCD控制器, 比如VCLK的频率等 */
lcd_regs = ioremap(0x4C800000, 0x200);
VIDCON0 = ioremap(0x4c800000, 4);
VIDCON1 = ioremap(0x4c800004, 4);
VIDTCON0 = ioremap(0x4c800008, 4);
VIDTCON1 = ioremap(0x4c80000C, 4);
VIDTCON2 = ioremap(0x4c800010, 4);
WINCON0 = ioremap(0x4c800014, 4);
VIDOSD0A = ioremap(0x4c800028, 4);
VIDOSD0B = ioremap(0x4c80002C, 4);
VIDW00ADD0B0 = ioremap(0x4c800064, 4);
VIDW00ADD1B0 = ioremap(0x4c80007C, 4);
// 配置VIDCONx，设置接口类型、时钟、极性和使能LCD控制器等
*VIDCON0 = (0<<22)|(0<<13)|(9<<6)|(1<<5)|(1<<4)|(0<<2)|(3<<0);
*VIDCON1 = (0<<7)|(1<<6)|(1<<5)|(0<<4); /* VCLK在下降沿取数据。VSYNC和HSYNC都是低电平有效，平时是高电平。VDEN高有效 */
// 配置VIDTCONx，设置时序和长宽等
// 设置时序
*VIDTCON0 = VBPD<<16 | VFPD<<8 | VSPW<<0;
*VIDTCON1 = HBPD<<16 | HFPD<<8 | HSPW<<0;
// 设置长宽
*VIDTCON2 = (LINEVAL << 11) | (HOZVAL << 0);
// 配置WINCON0，设置window0的数据格式
// 需要配置BITSWP,BYTSWP,HAWSWP
*WINCON0 = (1<<0);
*WINCON0 |= (1<<16); /* HAWSWP=1 */
*WINCON0 &= ~(0xf << 2);
*WINCON0 |= 0x5<<2; /* 选择16bpp，即5-6-5模式 */
// 配置VIDOSD0A/B/C,设置window0的坐标系
#define LeftTopX 0
#define LeftTopY 0
#define RightBotX 479 /* 这里x,y和韦东山相反 */
#define RightBotY 271
*VIDOSD0A = (LeftTopX<<11) | (LeftTopY << 0);
*VIDOSD0B = (RightBotX<<11) | (RightBotY << 0);
/* 3.3 分配显存(framebuffer), 并把地址告诉LCD控制器 */
//申请显存，返回虚拟地址，申请后s3c_lcd->fix.smem_start存放显存物理地址
s3c_lcd->screen_base = dma_alloc_writecombine(NULL, s3c_lcd->fix.smem_len, &s3c_lcd->fix.smem_start, GFP_KERNEL);
// 置VIDW00ADD0B0和VIDW00ADD1B0，设置framebuffer的地址
*VIDW00ADD0B0 = s3c_lcd->fix.smem_start;
*VIDW00ADD1B0 = s3c_lcd->fix.smem_start + s3c_lcd->fix.smem_len;
printk("s3c_lcd->fix.smem_start=0x%08x\n", (unsigned int)s3c_lcd->fix.smem_start);
printk("*VIDW00ADD0B0=0x%08x\n", (unsigned int)*VIDW00ADD0B0);
printk("s3c_lcd->screen_base=0x%08x\n", (unsigned int)s3c_lcd->screen_base);
lcd_clear_screen(((0xFF >> 3) << 11)|((0x00 >> 2) << 5)|((0x00 >> 3) << 0)); // 绿色 // 黑色
lcd_clear_screen(((0x00 >> 3) << 11)|((0xFF >> 2) << 5)|((0x00 >> 3) << 0)); //红色
lcd_clear_screen(((0x00 >> 3) << 11)|((0x00 >> 2) << 5)|((0xFF >> 3) << 0)); //蓝色
lcd_draw_hline(10, 20 ,100 , 0x000000);
lcd_draw_vline(30, 5, 200, 0xff0000);
//s3c_lcd->smem_start = xxx /* 显存的物理地址 */
/* 4. 注册 */
register_framebuffer(s3c_lcd);
return 0;
}