288 lines
7.4 KiB
C
288 lines
7.4 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: $
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*
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* Copyright (C) 2009 Karl Kurbjun
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "system.h"
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#include "file.h"
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#include "lcd-remote.h"
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#include "adc.h"
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#include "scroll_engine.h"
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#include "uart-target.h"
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static enum remote_control_states
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{
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REMOTE_CONTROL_IDLE,
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REMOTE_CONTROL_NOP,
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REMOTE_CONTROL_POWER,
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REMOTE_CONTROL_MASK,
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REMOTE_CONTROL_DRAW1,
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REMOTE_CONTROL_DRAW_PAUSE1,
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REMOTE_CONTROL_DRAW2,
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REMOTE_CONTROL_DRAW_PAUSE2,
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REMOTE_CONTROL_SLEEP
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} remote_state_control = REMOTE_CONTROL_NOP;
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bool remote_initialized=true;
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unsigned char remote_contrast=DEFAULT_REMOTE_CONTRAST_SETTING;
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unsigned char remote_power=0x00;
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/*** hardware configuration ***/
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int lcd_remote_default_contrast(void)
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{
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return DEFAULT_REMOTE_CONTRAST_SETTING;
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}
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void lcd_remote_sleep(void)
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{
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remote_state_control=REMOTE_CONTROL_SLEEP;
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}
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void lcd_remote_powersave(bool on)
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{
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if(on)
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{
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remote_power|=0xC0;
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remote_state_control=REMOTE_CONTROL_POWER;
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}
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else
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{
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remote_power&=~(0xC0);
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remote_state_control=REMOTE_CONTROL_POWER;
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}
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}
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void lcd_remote_set_contrast(int val)
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{
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remote_contrast=(char)val;
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remote_state_control=REMOTE_CONTROL_POWER;
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}
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void lcd_remote_set_invert_display(bool yesno)
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{
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(void)yesno;
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}
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/* turn the display upside down (call lcd_remote_update() afterwards) */
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void lcd_remote_set_flip(bool yesno)
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{
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(void)yesno;
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}
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bool remote_detect(void)
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{
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return true;
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}
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void lcd_remote_on(void)
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{
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remote_power|=0x80;
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remote_state_control=REMOTE_CONTROL_POWER;
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}
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void lcd_remote_off(void)
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{
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remote_power&=~(0x80);
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remote_state_control=REMOTE_CONTROL_POWER;
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}
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unsigned char lcd_remote_test[16]=
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{0x80,0xFF,0x80,0x00,0xFF,0x89,0x89,0x00,0xC1,0x89,0x8F,0x80,0xFF,0x80,0,0};
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/* Monitor remote hotswap */
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static void remote_tick(void)
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{
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unsigned char i;
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unsigned char remote_payload[10], remote_payload_size;
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unsigned char remote_check_xor, remote_check_sum;
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switch (remote_state_control)
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{
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case REMOTE_CONTROL_IDLE:
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remote_payload_size=0;
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remote_state_control=REMOTE_CONTROL_IDLE;
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break;
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case REMOTE_CONTROL_NOP:
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remote_payload[0]=0x11;
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remote_payload[1]=0x30;
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remote_payload_size=2;
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remote_state_control=REMOTE_CONTROL_NOP;
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break;
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case REMOTE_CONTROL_POWER:
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remote_payload[0]=0x31;
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remote_payload[1]=remote_power;
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remote_payload[2]=remote_contrast;
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remote_payload_size=3;
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remote_state_control=REMOTE_CONTROL_NOP;
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break;
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case REMOTE_CONTROL_MASK:
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remote_payload[0]=0x41;
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remote_payload[1]=0x94;
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remote_payload_size=2;
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remote_state_control=REMOTE_CONTROL_NOP;
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break;
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case REMOTE_CONTROL_DRAW1:
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remote_payload[0]=0x51;
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remote_payload[1]=0x80;
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remote_payload[2]=14;
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remote_payload[3]=0;
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remote_payload[4]=0;
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remote_payload[5]=14;
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remote_payload[6]=8;
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remote_payload_size=7;
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remote_state_control=REMOTE_CONTROL_DRAW_PAUSE1;
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break;
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case REMOTE_CONTROL_DRAW_PAUSE1:
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remote_payload[0]=0x11;
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remote_payload[1]=0x30;
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remote_payload_size=2;
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remote_state_control=REMOTE_CONTROL_DRAW2;
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break;
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case REMOTE_CONTROL_DRAW2:
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remote_payload[0]=0x51;
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remote_payload[1]=0x80;
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remote_payload[2]=14;
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remote_payload[3]=0;
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remote_payload[4]=8;
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remote_payload[5]=14;
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remote_payload[6]=16;
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remote_payload_size=7;
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remote_state_control=REMOTE_CONTROL_DRAW_PAUSE2;
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break;
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case REMOTE_CONTROL_DRAW_PAUSE2:
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remote_payload[0]=0x11;
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remote_payload[1]=0x30;
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remote_payload_size=2;
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remote_state_control=REMOTE_CONTROL_NOP;
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break;
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case REMOTE_CONTROL_SLEEP:
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remote_payload[0]=0x71;
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remote_payload[1]=0x30;
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remote_payload_size=2;
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remote_state_control=REMOTE_CONTROL_IDLE;
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break;
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default:
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remote_payload_size=0;
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break;
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}
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if(remote_payload_size==0)
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{
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return;
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}
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remote_check_xor=remote_payload[0];
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remote_check_sum=remote_payload[0];
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for(i=1; i<remote_payload_size; i++)
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{
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remote_check_xor^=remote_payload[i];
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remote_check_sum+=remote_payload[i];
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}
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if(remote_payload[0]==0x51)
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{
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unsigned char offset;
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unsigned char x;
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if(remote_payload[4]==8)
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{
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offset=79;
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}
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else
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{
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offset=0;
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}
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for (x = 0; x < 14; x++)
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{
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remote_check_xor^=lcd_remote_test[x];
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remote_check_sum+=lcd_remote_test[x];
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}
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uart1_puts(remote_payload, remote_payload_size);
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lcd_remote_test[14]=remote_check_xor;
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lcd_remote_test[15]=remote_check_sum;
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uart1_puts(lcd_remote_test, 16);
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}
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else
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{
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remote_payload[remote_payload_size]=remote_check_xor;
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remote_payload[remote_payload_size+1]=remote_check_sum;
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uart1_puts(remote_payload, remote_payload_size+2);
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}
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}
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void lcd_remote_init_device(void)
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{
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lcd_remote_clear_display();
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if (remote_detect())
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lcd_remote_on();
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/* put the remote control in the tick task */
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tick_add_task(remote_tick);
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}
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/* Update the display.
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This must be called after all other LCD functions that change the display. */
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void lcd_remote_update(void)
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{
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if(remote_state_control!=REMOTE_CONTROL_DRAW1
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&& remote_state_control!=REMOTE_CONTROL_DRAW_PAUSE1
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&& remote_state_control!=REMOTE_CONTROL_DRAW2
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&& remote_state_control!=REMOTE_CONTROL_DRAW_PAUSE2)
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{
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remote_state_control=REMOTE_CONTROL_DRAW1;
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}
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}
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/* Update a fraction of the display. */
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void lcd_remote_update_rect(int x, int y, int width, int height)
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{
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(void)x;
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(void)y;
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(void)width;
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(void)height;
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lcd_remote_update();
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}
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void _remote_backlight_on(void)
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{
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remote_power|=0x40;
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remote_state_control=REMOTE_CONTROL_POWER;
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}
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void _remote_backlight_off(void)
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{
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remote_power&=~(0x40);
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remote_state_control=REMOTE_CONTROL_POWER;
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}
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