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📄 io.c

📁 基于Freescale的MX21处理器的bootloader程序
💻 C
字号:
🔍 
/*-------------------------------------------------------------------
FILE NAME:
	io.c
DESCRIPTION:
	this file includes input and output functions. 
AUTHOR:
	WYF
VERSION:
	2005.1122.00
COMPANY:
	DATANG MICROELECTRONICS TECHNOLOGY CO,.LTD
HISTORY:
	2005.1122 Creat this file
	...
--------------------------------------------------------------------*/
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include "nucleus.h"
#include "ADSmx21_defs.h"
#include "drv_defs.h"
#include "drv_extr.h"
#include "io.h"

extern unsigned short display_buf[DISPLAY_LINE_HEIGHT*DISPLAY_LINE_MAX][320];
extern int line, totalline;
extern int row;
 
/*-----------------------------------------------------
	ASCII code map to char table position for 16*8
	48~57====0~9
	58   ==== :
	59   ==== ;
	65~90===='A'~'Z'
-----------------------------------------------------*/
const unsigned char ascii_load_table[]=
	{	00,00,00,00,00,00,00,00,00,00,97,00,00,00,00,00,//0~15
		00,00,00,00,00,00,00,00,00,00,00,00,00,00,98,96,//16~31
		0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,//32~47
		16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,//48~63
		32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,//64~79
		48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,//80~95
		64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,//96~111
		80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95 //112~
	};


/* ASCCII characters dot-matrix 12*6 */
const unsigned char ascii_table_12[][LCD_CHAR_HEIGTH_12]={
	{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, //" "
	{0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x00,0x20,0x00,0x00,0x00}, //!
	{0x28,0x50,0x50,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, //"
	{0x00,0x28,0x28,0xFC,0x28,0x50,0xFC,0x50,0x50,0x00,0x00,0x00}, //#
	{0x20,0x78,0xA8,0xA0,0x60,0x30,0x28,0xA8,0xF0,0x20,0x00,0x00}, //$
	{0x00,0x48,0xA8,0xB0,0x50,0x28,0x34,0x54,0x48,0x00,0x00,0x00}, //%
	{0x00,0x20,0x50,0x50,0x78,0xA8,0xA8,0x90,0x6C,0x00,0x00,0x00}, //&
	{0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, //`
	{0x04,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x08,0x04,0x00,0x00}, //(
	{0x40,0x20,0x10,0x10,0x10,0x10,0x10,0x10,0x20,0x40,0x00,0x00}, //)
	{0x00,0x00,0x20,0xA8,0x70,0x70,0xA8,0x20,0x00,0x00,0x00,0x00}, //*
	{0x00,0x20,0x20,0x20,0xF8,0x20,0x20,0x20,0x00,0x00,0x00,0x00}, //+
	{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x40,0x80,0x00}, //,
	{0x00,0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, //-
	{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00}, //.
	{0x08,0x10,0x10,0x10,0x20,0x20,0x40,0x40,0x40,0x80,0x00,0x00}, ///
	{0x00,0x70,0x88,0x88,0x88,0x88,0x88,0x88,0x70,0x00,0x00,0x00}, //0
	{0x00,0x20,0x60,0x20,0x20,0x20,0x20,0x20,0x70,0x00,0x00,0x00}, //1
	{0x00,0x70,0x88,0x88,0x10,0x20,0x40,0x80,0xF8,0x00,0x00,0x00}, //2
	{0x00,0x70,0x88,0x08,0x30,0x08,0x08,0x88,0x70,0x00,0x00,0x00}, //3
	{0x00,0x10,0x30,0x50,0x50,0x90,0x78,0x10,0x18,0x00,0x00,0x00}, //4
	{0x00,0xF8,0x80,0x80,0xF0,0x08,0x08,0x88,0x70,0x00,0x00,0x00}, //5
	{0x00,0x70,0x90,0x80,0xF0,0x88,0x88,0x88,0x70,0x00,0x00,0x00}, //6
	{0x00,0xF8,0x90,0x10,0x20,0x20,0x20,0x20,0x20,0x00,0x00,0x00}, //7
	{0x00,0x70,0x88,0x88,0x70,0x88,0x88,0x88,0x70,0x00,0x00,0x00}, //8
	{0x00,0x70,0x88,0x88,0x88,0x78,0x08,0x48,0x70,0x00,0x00,0x00}, //9 
	{0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00}, //:
	{0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x20,0x20,0x00,0x00}, //;
	{0x04,0x08,0x10,0x20,0x40,0x20,0x10,0x08,0x04,0x00,0x00,0x00}, //<
	{0x00,0x00,0x00,0xF8,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00}, //=
	{0x40,0x20,0x10,0x08,0x04,0x08,0x10,0x20,0x40,0x00,0x00,0x00}, //>
	{0x00,0x70,0x88,0x88,0x10,0x20,0x20,0x00,0x20,0x00,0x00,0x00}, //?
	{0x00,0x70,0x88,0x98,0xA8,0xA8,0xB8,0x80,0x78,0x00,0x00,0x00}, //@
	{0x00,0x20,0x20,0x30,0x50,0x50,0x78,0x48,0xCC,0x00,0x00,0x00}, //A
	{0x00,0xF0,0x48,0x48,0x70,0x48,0x48,0x48,0xF0,0x00,0x00,0x00}, //B
	{0x00,0x78,0x88,0x80,0x80,0x80,0x80,0x88,0x70,0x00,0x00,0x00}, //C
	{0x00,0xF0,0x48,0x48,0x48,0x48,0x48,0x48,0xF0,0x00,0x00,0x00}, //D
	{0x00,0xF8,0x48,0x50,0x70,0x50,0x40,0x48,0xF8,0x00,0x00,0x00}, //E
	{0x00,0xF8,0x48,0x50,0x70,0x50,0x40,0x40,0xE0,0x00,0x00,0x00}, //F
	{0x00,0x38,0x48,0x80,0x80,0x9C,0x88,0x48,0x30,0x00,0x00,0x00}, //G
	{0x00,0xCC,0x48,0x48,0x78,0x48,0x48,0x48,0xCC,0x00,0x00,0x00}, //H
	{0x00,0xF8,0x20,0x20,0x20,0x20,0x20,0x20,0xF8,0x00,0x00,0x00}, //I
	{0x00,0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x90,0xE0,0x00,0x00}, //J
	{0x00,0xEC,0x48,0x50,0x60,0x50,0x50,0x48,0xEC,0x00,0x00,0x00}, //K
	{0x00,0xE0,0x40,0x40,0x40,0x40,0x40,0x44,0xFC,0x00,0x00,0x00}, //L
	{0x00,0xD8,0xD8,0xD8,0xD8,0xA8,0xA8,0xA8,0xA8,0x00,0x00,0x00}, //M
	{0x00,0xDC,0x48,0x68,0x68,0x58,0x58,0x48,0xE8,0x00,0x00,0x00}, //N
	{0x00,0x70,0x88,0x88,0x88,0x88,0x88,0x88,0x70,0x00,0x00,0x00}, //O
	{0x00,0xF0,0x48,0x48,0x70,0x40,0x40,0x40,0xE0,0x00,0x00,0x00}, //P
	{0x00,0x70,0x88,0x88,0x88,0x88,0xE8,0x98,0x70,0x18,0x00,0x00}, //Q
	{0x00,0xF0,0x48,0x48,0x70,0x50,0x48,0x48,0xEC,0x00,0x00,0x00}, //R
	{0x00,0x78,0x88,0x80,0x60,0x10,0x08,0x88,0xF0,0x00,0x00,0x00}, //S
	{0x00,0xF8,0xA8,0x20,0x20,0x20,0x20,0x20,0x70,0x00,0x00,0x00}, //T
	{0x00,0xCC,0x48,0x48,0x48,0x48,0x48,0x48,0x30,0x00,0x00,0x00}, //U
	{0x00,0xCC,0x48,0x48,0x50,0x50,0x30,0x20,0x20,0x00,0x00,0x00}, //V
	{0x00,0xA8,0xA8,0xA8,0x70,0x50,0x50,0x50,0x50,0x00,0x00,0x00}, //W
	{0x00,0xD8,0x50,0x50,0x20,0x20,0x50,0x50,0xD8,0x00,0x00,0x00}, //X
	{0x00,0xD8,0x50,0x50,0x20,0x20,0x20,0x20,0x70,0x00,0x00,0x00}, //Y
	{0x00,0xF8,0x90,0x10,0x20,0x20,0x40,0x48,0xF8,0x00,0x00,0x00}, //Z	
	{0x38,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x38,0x00,0x00}, //[
	{0x80,0x40,0x40,0x40,0x20,0x20,0x10,0x10,0x10,0x08,0x00,0x00}, /*\*/
	{0x70,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x70,0x00,0x00}, //]
	{0x20,0x50,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, //^
	{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFC,0x00}, //_
	{0x40,0x40,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, //'
	{0x00,0x00,0x00,0x00,0x30,0x48,0x38,0x48,0x3C,0x00,0x00,0x00}, //a
	{0x00,0xC0,0x40,0x40,0x70,0x48,0x48,0x48,0x70,0x00,0x00,0x00}, //b
	{0x00,0x00,0x00,0x00,0x38,0x48,0x40,0x40,0x38,0x00,0x00,0x00}, //c
	{0x00,0x18,0x08,0x08,0x38,0x48,0x48,0x48,0x3C,0x00,0x00,0x00}, //d
	{0x00,0x00,0x00,0x00,0x30,0x48,0x78,0x40,0x38,0x00,0x00,0x00}, //e
	{0x00,0x1C,0x20,0x20,0x78,0x20,0x20,0x20,0x78,0x00,0x00,0x00}, //f
	{0x00,0x00,0x00,0x00,0x3C,0x48,0x30,0x40,0x78,0x44,0x38,0x00}, //g
	{0x00,0xC0,0x40,0x40,0x70,0x48,0x48,0x48,0xEC,0x00,0x00,0x00}, //h
	{0x00,0x20,0x00,0x00,0x60,0x20,0x20,0x20,0x70,0x00,0x00,0x00}, //i
	{0x00,0x10,0x00,0x00,0x30,0x10,0x10,0x10,0x10,0x10,0xE0,0x00}, //j
	{0x00,0xC0,0x40,0x40,0x5C,0x50,0x70,0x48,0xEC,0x00,0x00,0x00}, //k
	{0x00,0xE0,0x20,0x20,0x20,0x20,0x20,0x20,0xF8,0x00,0x00,0x00}, //l
	{0x00,0x00,0x00,0x00,0xF0,0xA8,0xA8,0xA8,0xA8,0x00,0x00,0x00}, //m
	{0x00,0x00,0x00,0x00,0xF0,0x48,0x48,0x48,0xEC,0x00,0x00,0x00}, //n
	{0x00,0x00,0x00,0x00,0x30,0x48,0x48,0x48,0x30,0x00,0x00,0x00}, //o
	{0x00,0x00,0x00,0x00,0xF0,0x48,0x48,0x48,0x70,0x40,0xE0,0x00}, //p
	{0x00,0x00,0x00,0x00,0x38,0x48,0x48,0x48,0x38,0x08,0x1C,0x00}, //q
	{0x00,0x00,0x00,0x00,0xD8,0x60,0x40,0x40,0xE0,0x00,0x00,0x00}, //r
	{0x00,0x00,0x00,0x00,0x78,0x40,0x30,0x08,0x78,0x00,0x00,0x00}, //s
	{0x00,0x00,0x20,0x20,0x70,0x20,0x20,0x20,0x18,0x00,0x00,0x00}, //t
	{0x00,0x00,0x00,0x00,0xD8,0x48,0x48,0x48,0x3C,0x00,0x00,0x00}, //u
	{0x00,0x00,0x00,0x00,0xEC,0x48,0x50,0x30,0x20,0x00,0x00,0x00}, //v
	{0x00,0x00,0x00,0x00,0xA8,0xA8,0x70,0x50,0x50,0x00,0x00,0x00}, //w
	{0x00,0x00,0x00,0x00,0xD8,0x50,0x20,0x50,0xD8,0x00,0x00,0x00}, //x
	{0x00,0x00,0x00,0x00,0xEC,0x48,0x50,0x30,0x20,0x20,0xC0,0x00}, //y
	{0x00,0x00,0x00,0x00,0x78,0x10,0x20,0x20,0x78,0x00,0x00,0x00}, //z
	{0x18,0x10,0x10,0x10,0x20,0x10,0x10,0x10,0x10,0x18,0x00,0x00}, //{
	{0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10}, //|
	{0x60,0x20,0x20,0x20,0x10,0x20,0x20,0x20,0x20,0x60,0x00,0x00}, //}
	{0x40,0xA4,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, //~
	{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00}, //.
	{0x00,0x00,0x30,0x30,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00}  //CHAR_RTC_DOT
};

void display_char_12(unsigned short *p_mem, int PosX, int PosY, char ch, unsigned short cl)
{
	int i = 0,j = 0,px = 0,py = 0;
	unsigned char   ch_index = 0;      /* ascii index */
	unsigned char   ch_mask  = 0;      /* ascii characters mask */
	unsigned short *pixel = NULL;      /* pixel pointer */
//	unsigned short *p_mem;

//	p_mem = (unsigned short *)display_buf;
	
	/* get start point position */
	px = PosX;
	py = PosY;

	/* get the ascii characters mask index */
	ch_index = ascii_load_table[ch];

	for (i=0;i<LCD_CHAR_HEIGTH_12;i++)
	{
		/* get the mask bits */ 
		ch_mask = ascii_table_12[ch_index][i];

		/* get canvas display memory pointer */
		pixel   = p_mem + (py+i)*320 + px + LCD_CHAR_WIDTH_12;

		/* adjust the bit mask for 2 blank bit */
		ch_mask = ch_mask>>2;

		/* write a line of a characters */
		for (j=0;j<LCD_CHAR_WIDTH_12;j++)
		{
			if ((ch_mask % 2) != 0)
			{
				*pixel = cl;
      		}
			else{*pixel = 0;} /* added by wyf */
			
			ch_mask = ch_mask>>1;
			pixel--;
    	}
  	}
}

void sendchar( char *ch )
{
	char c;
	c = *ch;
	if (c == 0x08) {/* backspace */
		if (row>3){
			display_char_12((unsigned short *)display_buf,row*6,line*DISPLAY_LINE_HEIGHT,0x20,0xffff);
			row--;
		}
	}
	else if ((c == 0x0d)||(c == 0x0a)){
		display_char_12((unsigned short *)display_buf,row*6,line*DISPLAY_LINE_HEIGHT,0,0xffff);
		row=0;
		totalline++; 
		line++;
		if (line >= DISPLAY_LINE_MAX) line = 0;
		memset(display_buf[line*DISPLAY_LINE_HEIGHT], 0, 320*DISPLAY_LINE_HEIGHT*2);
	}
	else{
		display_char_12((unsigned short *)display_buf,row*6,line*DISPLAY_LINE_HEIGHT,c,0xffff);
		row++;
		if (row >= 53){
			row = 0;
			totalline++; 
			line++;
			if (line >= DISPLAY_LINE_MAX) line = 0;
			memset(display_buf[line*DISPLAY_LINE_HEIGHT], 0, 320*DISPLAY_LINE_HEIGHT*2);
		} 
	}
}

void mputs(char *s)
{
	while(*s){
		sendchar(s++);
	}
}

void mputc(char c)
{
	sendchar(&c);
}

void clear_line(void)
{
	display_char_12((unsigned short *)display_buf,row*6,line*DISPLAY_LINE_HEIGHT,0,0xffff);
	memset(display_buf[line*DISPLAY_LINE_HEIGHT], 0, 320*DISPLAY_LINE_HEIGHT*2);
	row=0;
}


void cursor_shink(void)
{
	static char c;
	if (c == '_') c = 0x20;
	else c = '_';
	
	display_char_12((unsigned short *)display_buf,row*6,line*DISPLAY_LINE_HEIGHT,c,0xffff);
}

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