bt96040.c

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/***************************************************************************
 *   Copyright (C) 19.10.2004 by                                           *
 *   Matthias Kranz (matthias.kranz@ifi.lmu.de)                            *
 *   Paul Holleis (paul.holleis@ifi.lmu.de)                                *
 *                                                                         *
 *   particle header file for barton 96040 i2c display.                    *
 *   Last modified: 17.11.2004                                             *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 **************************************************************************/
                #use i2c(master, sda=PIN_DISPLAY_2_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)

void bt_write_long4(int row, int col, long long_val)
{
        char str_long[5];
        sprintf(str_long, "%04li", long_val);
        bt_write_string(row, col, str_long);
}       

void bt_write_long4_display(int display_no, int row, int col, long long_val)
{
        char str_long[5];
        sprintf(str_long, "%04li", long_val);
        bt_write_string_display(display_no, row, col, str_long);
}       
 
void bt_write_string(int row, int col, char * str)
{
        int strpos;
        strpos = 0;
        
        // change commented lines against for loop...
        for (; *str != '\0'; str++)
        //while (*str != '\0')
        {               
                bt_write_char(row, (col + (strpos * BT_CHARACTER_PIXEL_WIDTH)), *str);
                strpos++;
                //str++;
        }       
}

void bt_write_string_display(int display_no, int row, int col, char * str)
{
        int strpos;
        strpos = 0;
        
        // change commented lines against for loop...
        for (; *str != '\0'; str++)
        //while (*str != '\0')
        {               
                bt_write_char_display(display_no, row, (col + (strpos * BT_CHARACTER_PIXEL_WIDTH)), *str);
                strpos++;
                //str++;
        }
}

void bt_write_hcilab_display(int display_no, int row, int col)
{
        char hcilab[11] = "HCILAB.ORG";
        bt_write_string_display(display_no, row, col, hcilab);
        /*
        int cur_pos = 0;
        cur_pos = BT_CHARACTER_PIXEL_WIDTH * col;
        bt_write_char_display(display_no, row,cur_pos, 'H'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'C'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'I'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'L'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'A'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'B'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'.'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'O'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'R'); cur_pos=cur_pos+BT_CHARACTER_PIXEL_WIDTH;
        bt_write_char_display(display_no, row,cur_pos,'G');
        */
}

void bt_write_line_display(int display_no, int row, int ch)
{
        int i;
        if (display_no == 0) {
                #use i2c(master, sda=PIN_DISPLAY_1_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)

                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000);
                for(i=0;i<100;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 1) {
                #use i2c(master, sda=PIN_DISPLAY_2_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)
                
                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000);
                for(i=0;i<100;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 2) {
                #use i2c(master, sda=PIN_B2, scl=PIN_DISPLAY_1_I2C_SCL)
                
                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000);
                for(i=0;i<100;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 3) {
                #use i2c(master, sda=PIN_B3, scl=PIN_DISPLAY_1_I2C_SCL)
                
                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000);
                for(i=0;i<100;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 4) {
                #use i2c(master, sda=PIN_B4, scl=PIN_DISPLAY_1_I2C_SCL)
                
                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000);
                for(i=0;i<100;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 5) {
                #use i2c(master, sda=PIN_B5, scl=PIN_DISPLAY_1_I2C_SCL)
                
                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000);
                for(i=0;i<100;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

}

// extract ascii from tables & write to LCD
void bt_write_char_display(int display_no, int row, int col, BYTE ch)   
{
        int tab_index;
        BYTE bt_char_bit_set;
        //int ch_pix_set;
        int i;
                
        if (ch<0x20)return;
        if (ch>0x7f)return;

        for (i=0;i<5;i++) {
                if (ch<0x50){
                        tab_index=(((ch&0xff)-0x20)*5);
                        bt_char_bit_set=table1[(tab_index+i)];
                } else if (ch>0x4f){
                        tab_index=(((ch&0xff)-0x50)*5);
                        tab_index=(((ch&0xff)-0x50)*5);
                        tab_index=(((ch&0xff)-0x50)*5);
                        bt_char_bit_set=table2[(tab_index+i)];
                }
                bt_write_pix_set_display(display_no, row, col+i, bt_char_bit_set,1);            
        }       
        bt_write_pix_set_display(display_no, row, col+5, 0x00,1);               
        
}

void bt_write_pix_set_display(int display_no, int row, int col, int ch, int count)
{
        int i;

        if (display_no == 0) {
                #use i2c(master, sda=PIN_DISPLAY_1_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)
                
                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000+col);
                for(i=0;i<count;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 1) {
                #use i2c(master, sda=PIN_DISPLAY_2_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)
                

                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000+col);
                for(i=0;i<count;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 2) {
                #use i2c(master, sda=PIN_DISPLAY_3_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)
                //#use i2c(master, sda=PIN_B2, scl=PIN_DISPLAY_1_I2C_SCL)
                

                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000+col);
                for(i=0;i<count;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 3) {
                #use i2c(master, sda=PIN_DISPLAY_4_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)
                //#use i2c(master, sda=PIN_B3, scl=PIN_DISPLAY_1_I2C_SCL)
                

                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000+col);
                for(i=0;i<count;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 4) {
                #use i2c(master, sda=PIN_DISPLAY_5_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)
                //#use i2c(master, sda=PIN_B4, scl=PIN_DISPLAY_1_I2C_SCL)
                

                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000+col);
                for(i=0;i<count;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }

        if (display_no == 5) {
                #use i2c(master, sda=PIN_DISPLAY_6_I2C_SDA, scl=PIN_DISPLAY_1_I2C_SCL)
                //#use i2c(master, sda=PIN_B5, scl=PIN_DISPLAY_1_I2C_SCL)
                

                i2c_start();
                i2c_write(0x7A);                        // send address 0x7A
                i2c_write(0b01100000+row);
                i2c_write(0b00000000+col);
                for(i=0;i<count;i++){
                        i2c_write(ch);
                }
                i2c_stop();             // end transfer
        }


}

void bt_clear_display(int display_no)
{
        bt_write_line_display(display_no, 0x00,0x00);
        bt_write_line_display(display_no, 0x01,0x00);
        bt_write_line_display(display_no, 0x02,0x00);
        bt_write_line_display(display_no, 0x03,0x00);
        bt_write_line_display(display_no, 0x04,0x00);
}


void bt_clear()//int display_no)
{
        bt_write_line(0x00,0x00);
        bt_write_line(0x01,0x00);
        bt_write_line(0x02,0x00);
        bt_write_line(0x03,0x00);
        bt_write_line(0x04,0x00);
}

void bt_write_line(int row, int ch)
{
        int i;
        i2c_start();
        // send address 0x7A
        i2c_write(0x7A);                        
        i2c_write(0b01100000+row);
        i2c_write(0b00000000);
        for(i=0;i<100;i++)
        {
                i2c_write(ch);
        }
        // end transfer
        i2c_stop();             
}

void write_pix_set(int row, int col, int ch, int count)
{
        int i;
        i2c_start();
        // send address 0x7A
        i2c_write(0x7A);                        
        i2c_write(0b01100000+row);
        i2c_write(0b00000000+col);
        for(i=0;i<count;i++)
        {
                i2c_write(ch);
        }
        // end transfer
        i2c_stop();             
}
void bt_print_char_lcd(int row, int col, BYTE ch)
{
        bt_write_char(row, col, ch);    
}

void bt_write_char(int row, int col, BYTE ch)   
{
        int tab_index;
        BYTE bt_char_bit_set;
        //int ch_pix_set;
        int i;
                
        if (ch<0x20)return;
        if (ch>0x7f)return;

        for (i=0;i<5;i++) 
        {
                if (ch<0x50)
                {
                        tab_index=(((ch&0xff)-0x20)*5);
                        bt_char_bit_set=table1[(tab_index+i)];
                } 
                else if (ch>0x4f)
                {
                        tab_index=(((ch&0xff)-0x50)*5);
                        tab_index=(((ch&0xff)-0x50)*5);
                        tab_index=(((ch&0xff)-0x50)*5);
                        bt_char_bit_set=table2[(tab_index+i)];
                }
                write_pix_set(row, col+i, bt_char_bit_set,1);           
        }       
        write_pix_set(row, col+5, 0x00,1);                      
}

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