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Rivendellaudio/ripcd/btss82.cpp
Fred Gleason 56c797b611 2020-02-14 Fred Gleason <fredg@paravelsystems.com> 
* Fixed a regression in the BroadcastTools SS 8.2 switcher driver
	that could cause deadlocks and intermittent operation.
2020-02-14 19:42:15 -05:00

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// btss82.cpp
//
// A Rivendell switcher driver for the BroadcastTools SS 8.2
//
// (C) Copyright 2002-2020 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#include <stdlib.h>
#include <qtimer.h>
#include <rdapplication.h>
#include "btss82.h"
#include "globals.h"
BtSs82::BtSs82(RDMatrix *matrix,QObject *parent)
: Switcher(matrix,parent)
{
//
// Initialize Data Structures
//
bt_istate=0;
for(int i=0;i<BTSS82_GPIO_PINS;i++) {
bt_gpi_state[i]=false;
bt_gpi_mask[i]=false;
}
//
// Get Matrix Parameters
//
bt_matrix=matrix->matrix();
bt_inputs=matrix->inputs();
bt_outputs=matrix->outputs();
bt_gpis=matrix->gpis();
bt_gpos=matrix->gpos();
//
// Initialize the TTY Port
//
RDTty *tty=new RDTty(rda->station()->name(),matrix->port(RDMatrix::Primary));
bt_device=new RDTTYDevice();
connect(bt_device,SIGNAL(readyRead()),this,SLOT(processStatus()));
if(tty->active()) {
bt_device->setName(tty->port());
bt_device->setSpeed(tty->baudRate());
bt_device->setWordLength(tty->dataBits());
bt_device->setParity(tty->parity());
bt_device->open(QIODevice::Unbuffered|QIODevice::ReadWrite);
}
delete tty;
//
// Interval OneShots
//
bt_gpi_oneshot=new RDOneShot(this);
connect(bt_gpi_oneshot,SIGNAL(timeout(int)),this,SLOT(gpiOneshotData(int)));
bt_gpo_oneshot=new RDOneShot(this);
connect(bt_gpo_oneshot,SIGNAL(timeout(int)),this,SLOT(gpoOneshotData(int)));
}
BtSs82::~BtSs82()
{
delete bt_device;
delete bt_gpi_oneshot;
delete bt_gpo_oneshot;
}
RDMatrix::Type BtSs82::type()
{
return RDMatrix::BtSs82;
}
unsigned BtSs82::gpiQuantity()
{
return bt_gpis;
}
unsigned BtSs82::gpoQuantity()
{
return bt_gpos;
}
bool BtSs82::primaryTtyActive()
{
return true;
}
bool BtSs82::secondaryTtyActive()
{
return false;
}
void BtSs82::processCommand(RDMacro *cmd)
{
char str[9];
switch(cmd->command()) {
case RDMacro::GO:
if((cmd->argQuantity()!=5)||
((cmd->arg(1).lower()!="i")&&
(cmd->arg(1).lower()!="o"))||
(cmd->arg(2).toInt()<1)||(cmd->arg(3).toInt()>bt_gpos)||
(cmd->arg(2).toInt()>bt_gpos)||
((cmd->arg(3).toInt()!=1)&&(cmd->arg(3).toInt()!=0)&&
(cmd->arg(1).lower()!="i"))||
((cmd->arg(3).toInt()!=1)&&(cmd->arg(3).toInt()!=0)&&
(cmd->arg(3).toInt()!=-1)&&(cmd->arg(1).lower()=="i"))||
(cmd->arg(4).toInt()<0)) {
cmd->acknowledge(false);
emit rmlEcho(cmd);
return;
}
if(cmd->arg(3).toInt()==0) { // Turn OFF
if(cmd->arg(4).toInt()==0) {
if(cmd->arg(1).lower()=="i") {
if(bt_gpi_state[cmd->arg(2).toInt()-1]) {
emit gpiChanged(bt_matrix,cmd->arg(2).toInt()-1,false);
bt_gpi_state[cmd->arg(2).toInt()-1]=false;
}
bt_gpi_mask[cmd->arg(2).toInt()-1]=true;
}
if(cmd->arg(1).lower()=="o") {
sprintf(str,"*%dOR%dF",BTSS82_UNIT_ID,cmd->arg(2).toInt());
bt_device->write(str,6);
emit gpoChanged(bt_matrix,cmd->arg(2).toInt()-1,false);
}
}
else {
if(cmd->echoRequested()) {
cmd->acknowledge(false);
emit rmlEcho(cmd);
}
return;
}
}
else {
if(cmd->arg(3).toInt()==-1) { // Clear input
bt_gpi_mask[cmd->arg(2).toInt()-1]=false;
bt_device->write("*0SPA",5);
}
else {
if(cmd->arg(4).toInt()==0) { // Turn ON
if(cmd->arg(1).lower()=="i") {
if(!bt_gpi_state[cmd->arg(2).toInt()-1]) {
emit gpiChanged(bt_matrix,cmd->arg(2).toInt()-1,true);
bt_gpi_state[cmd->arg(2).toInt()-1]=true;
}
bt_gpi_mask[cmd->arg(2).toInt()-1]=true;
}
if(cmd->arg(1).lower()=="o") {
sprintf(str,"*%dOR%dL",BTSS82_UNIT_ID,cmd->arg(2).toInt());
bt_device->write(str,6);
emit gpoChanged(bt_matrix,cmd->arg(2).toInt()-1,true);
}
}
else { // Pulse
if(cmd->arg(1).lower()=="i") {
if(!bt_gpi_state[cmd->arg(2).toInt()-1]) {
emit gpiChanged(bt_matrix,cmd->arg(2).toInt()-1,true);
bt_gpi_state[cmd->arg(2).toInt()-1]=true;
}
bt_gpi_mask[cmd->arg(2).toInt()-1]=true;
bt_gpi_oneshot->start(cmd->arg(2).toInt()-1,500);
}
if(cmd->arg(1).lower()=="o") {
sprintf(str,"*%dOR%dP",BTSS82_UNIT_ID,cmd->arg(2).toInt());
bt_device->write(str,6);
emit gpoChanged(bt_matrix,cmd->arg(2).toInt()-1,true);
bt_gpo_oneshot->start(cmd->arg(2).toInt()-1,500);
}
}
}
}
if(cmd->echoRequested()) {
cmd->acknowledge(true);
emit rmlEcho(cmd);
}
break;
case RDMacro::SA:
if((cmd->arg(1).toInt()<1)||(cmd->arg(1).toInt()>bt_inputs)||
(cmd->arg(2).toInt()<1)||(cmd->arg(2).toInt()>2)) {
cmd->acknowledge(false);
emit rmlEcho(cmd);
return;
}
sprintf(str,"*%d%02d%d",BTSS82_UNIT_ID,
cmd->arg(1).toInt(),cmd->arg(2).toInt());
bt_device->write(str,5);
cmd->acknowledge(true);
emit rmlEcho(cmd);
break;
case RDMacro::SR:
if((cmd->arg(1).toInt()<1)||(cmd->arg(1).toInt()>bt_inputs)||
(cmd->arg(2).toInt()<1)||(cmd->arg(2).toInt()>2)) {
cmd->acknowledge(false);
emit rmlEcho(cmd);
return;
}
sprintf(str,"*%d%02dM%d",BTSS82_UNIT_ID,
cmd->arg(1).toInt(),cmd->arg(2).toInt());
bt_device->write(str,6);
cmd->acknowledge(true);
emit rmlEcho(cmd);
break;
case RDMacro::ST:
if((cmd->arg(1).toInt()<0)||(cmd->arg(1).toInt()>bt_inputs)||
(cmd->arg(2).toInt()<1)||(cmd->arg(2).toInt()>2)) {
cmd->acknowledge(false);
emit rmlEcho(cmd);
return;
}
if(cmd->arg(1).toInt()==0) {
sprintf(str,"*%dM%d",BTSS82_UNIT_ID,cmd->arg(2).toInt());
bt_device->write(str,4);
}
else {
sprintf(str,"*%d%02d%d",BTSS82_UNIT_ID,
cmd->arg(1).toInt(),cmd->arg(2).toInt());
bt_device->write(str,5);
for(int i=1;i<cmd->arg(1).toInt();i++) {
sprintf(str,"*%d%02dM%d",BTSS82_UNIT_ID,
i,cmd->arg(2).toInt());
bt_device->write(str,6);
}
for(int i=cmd->arg(1).toInt()+1;i<9;i++) {
sprintf(str,"*%d%02dM%d",BTSS82_UNIT_ID,
i,cmd->arg(2).toInt());
bt_device->write(str,6);
}
}
cmd->acknowledge(true);
emit rmlEcho(cmd);
break;
default:
cmd->acknowledge(false);
emit rmlEcho(cmd);
break;
}
}
void BtSs82::processStatus()
{
char buffer[256];
int n;
int gpi;
while((n=bt_device->read(buffer,255))>0) {
for(int i=0;i<n;i++) {
switch(bt_istate) {
case 0:
if(buffer[i]=='S') {
bt_istate=1;
}
break;
case 1:
if(buffer[i]==(BTSS82_UNIT_ID+'0')) {
bt_istate=2;
}
else {
bt_istate=0;
}
break;
case 2:
if(buffer[i]=='P') {
bt_istate=3;
}
else {
bt_istate=0;
}
break;
case 3:
if(buffer[i]==',') {
bt_istate=4;
}
else {
bt_istate=0;
}
break;
case 4:
if(buffer[i]=='A') {
bt_istate=5;
}
else {
bt_istate=0;
}
break;
case 5:
case 7:
case 9:
case 11:
case 13:
case 15:
case 17:
case 19:
case 21:
case 23:
case 25:
case 27:
case 29:
case 31:
case 33:
case 35:
if(buffer[i]==',') {
bt_istate++;
}
else {
bt_istate=0;
}
break;
case 6:
case 8:
case 10:
case 12:
case 14:
case 16:
case 18:
case 20:
case 22:
case 24:
case 26:
case 28:
case 30:
case 32:
case 34:
case 36:
if(buffer[i]=='0') {
gpi=(bt_istate-6)/2;
if(bt_gpi_state[gpi]&&(!bt_gpi_mask[gpi])) {
emit gpiChanged(bt_matrix,gpi,false);
bt_gpi_state[gpi]=false;
}
bt_istate++;
}
if(buffer[i]=='1') {
gpi=(bt_istate-6)/2;
if((!bt_gpi_state[gpi])&&(!bt_gpi_mask[gpi])) {
emit gpiChanged(bt_matrix,gpi,true);
bt_gpi_state[gpi]=true;
}
bt_istate++;
}
break;
default:
bt_istate=0;
break;
}
}
}
}
void BtSs82::gpiOneshotData(int value)
{
bt_gpi_mask[value]=false;
bt_device->write("*0SPA",5);
}
void BtSs82::gpoOneshotData(int value)
{
emit gpoChanged(bt_matrix,value,false);
}
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