inline int get_repeat(struct ir_remote *remote)
{
if (!get_lead(remote))
return (0);
if (is_biphase(remote)) {
if (!expectspace(remote, remote->srepeat))
return (0);
if (!expectpulse(remote, remote->prepeat))
return (0);
} else {
if (!expectpulse(remote, remote->prepeat))
return (0);
set_pending_space(remote->srepeat);
}
if (!get_trail(remote))
return (0);
if (!get_gap
(remote,
is_const(remote) ? (min_gap(remote) >
rec_buffer.sum ? min_gap(remote) -
rec_buffer.sum : 0) : (has_repeat_gap(remote) ? remote->repeat_gap : min_gap(remote))
))
return (0);
return (1);
}
void rewind_rec_buffer(void)
{
rec_buffer.rptr=0;
rec_buffer.too_long=0;
set_pending_pulse(0);
set_pending_space(0);
rec_buffer.sum=0;
}
inline int expectzero(struct ir_remote *remote, int bit)
{
if (is_biphase(remote)) {
int all_bits = bit_count(remote);
ir_code mask;
mask = ((ir_code) 1) << (all_bits - 1 - bit);
if (mask & remote->rc6_mask) {
if (!expectpulse(remote, 2 * remote->pzero)) {
unget_rec_buffer(1);
return (0);
}
set_pending_space(2 * remote->szero);
} else {
if (!expectpulse(remote, remote->pzero)) {
unget_rec_buffer(1);
return (0);
}
set_pending_space(remote->szero);
}
} else if (is_space_first(remote)) {
if (remote->szero > 0 && !expectspace(remote, remote->szero)) {
unget_rec_buffer(1);
return (0);
}
if (remote->pzero > 0 && !expectpulse(remote, remote->pzero)) {
unget_rec_buffer(2);
return (0);
}
} else {
if (!expectpulse(remote, remote->pzero)) {
unget_rec_buffer(1);
return (0);
}
if (remote->ptrail > 0) {
if (!expectspace(remote, remote->szero)) {
unget_rec_buffer(2);
return (0);
}
} else {
set_pending_space(remote->szero);
}
}
return (1);
}
inline int get_header(struct ir_remote *remote)
{
if (is_rcmm(remote)) {
lirc_t deltap, deltas, sum;
deltap = get_next_pulse(remote->phead);
if (deltap == 0) {
unget_rec_buffer(1);
return (0);
}
deltas = get_next_space(remote->shead);
if (deltas == 0) {
unget_rec_buffer(2);
return (0);
}
sum = deltap + deltas;
if (expect(remote, sum, remote->phead + remote->shead)) {
return (1);
}
unget_rec_buffer(2);
return (0);
} else if (is_bo(remote)) {
if (expectpulse(remote, remote->pone) && expectspace(remote, remote->sone)
&& expectpulse(remote, remote->pone) && expectspace(remote, remote->sone)
&& expectpulse(remote, remote->phead) && expectspace(remote, remote->shead)) {
return 1;
}
return 0;
}
if (remote->shead == 0) {
if (!sync_pending_space(remote))
return 0;
set_pending_pulse(remote->phead);
return 1;
}
if (!expectpulse(remote, remote->phead)) {
unget_rec_buffer(1);
return (0);
}
/* if this flag is set I need a decision now if this is really
a header */
if (remote->flags & NO_HEAD_REP) {
lirc_t deltas;
deltas = get_next_space(remote->shead);
if (deltas != 0) {
if (expect(remote, remote->shead, deltas)) {
return (1);
}
unget_rec_buffer(2);
return (0);
}
}
set_pending_space(remote->shead);
return (1);
}
inline int sync_pending_space(struct ir_remote *remote)
{
if(rec_buffer.pendings>0)
{
lirc_t deltas;
deltas=get_next_space(rec_buffer.pendings);
if(deltas==0) return 0;
if(!expect(remote,deltas,rec_buffer.pendings)) return 0;
set_pending_space(0);
}
return 1;
}
ir_code get_pre(struct ir_remote * remote)
{
ir_code pre;
pre = get_data(remote, remote->pre_data_bits, 0);
if (pre == (ir_code) - 1) {
logprintf(1, "failed on pre_data");
return ((ir_code) - 1);
}
if (remote->pre_p > 0 && remote->pre_s > 0) {
if (!expectpulse(remote, remote->pre_p))
return ((ir_code) - 1);
set_pending_space(remote->pre_s);
}
return (pre);
}
ir_code get_post(struct ir_remote * remote)
{
ir_code post;
if (remote->post_p > 0 && remote->post_s > 0) {
if (!expectpulse(remote, remote->post_p))
return ((ir_code) - 1);
set_pending_space(remote->post_s);
}
post = get_data(remote, remote->post_data_bits, remote->pre_data_bits + remote->bits);
if (post == (ir_code) - 1) {
logprintf(1, "failed on post_data");
return ((ir_code) - 1);
}
return (post);
}
int expectspace(struct ir_remote *remote,int exdelta)
{
lirc_t deltas;
int retval;
//LOGPRINTF(5, "expecting space: %lu", exdelta);
if(!sync_pending_pulse(remote)) return 0;
deltas=get_next_space(rec_buffer.pendings+exdelta);
if(deltas==0) return(0);
if(rec_buffer.pendings>0)
{
if(rec_buffer.pendings>deltas) return 0;
retval=expect(remote,deltas-rec_buffer.pendings,exdelta);
if(!retval) return(0);
set_pending_space(0);
}
else
{
retval=expect(remote,deltas,exdelta);
}
return(retval);
}
ir_code get_data(struct ir_remote *remote,int bits,int done)
{
ir_code code;
int i;
code=0;
if(is_rcmm(remote))
{
lirc_t deltap,deltas,sum;
if(bits%2 || done%2)
{
return((ir_code) -1);
}
if(!sync_pending_space(remote)) return 0;
for(i=0;i<bits;i+=2)
{
code<<=2;
deltap=get_next_pulse(remote->pzero+remote->pone+
remote->ptwo+remote->pthree);
deltas=get_next_space(remote->szero+remote->sone+
remote->stwo+remote->sthree);
if(deltap==0 || deltas==0)
{
return((ir_code) -1);
}
sum=deltap+deltas;
//LOGPRINTF(3,"rcmm: sum %ld",(unsigned long) sum);
if(expect(remote,sum,remote->pzero+remote->szero))
{
code|=0;
//LOGPRINTF(2,"00");
}
else if(expect(remote,sum,remote->pone+remote->sone))
{
code|=1;
//LOGPRINTF(2,"01");
}
else if(expect(remote,sum,remote->ptwo+remote->stwo))
{
code|=2;
//LOGPRINTF(2,"10");
}
else if(expect(remote,sum,remote->pthree+remote->sthree))
{
code|=3;
//LOGPRINTF(2,"11");
}
else
{
//LOGPRINTF(2,"no match for %d+%d=%d",deltap,deltas,sum);
return((ir_code) -1);
}
}
return(code);
}
else if(is_grundig(remote))
{
lirc_t deltap,deltas,sum;
int state,laststate;
if(bits%2 || done%2)
{
return((ir_code) -1);
}
if(!sync_pending_pulse(remote)) return ((ir_code) -1);
for(laststate=state=-1,i=0;i<bits;)
{
deltas=get_next_space(remote->szero+remote->sone+
remote->stwo+remote->sthree);
deltap=get_next_pulse(remote->pzero+remote->pone+
remote->ptwo+remote->pthree);
if(deltas==0 || deltap==0)
{
return((ir_code) -1);
}
sum=deltas+deltap;
//LOGPRINTF(3,"grundig: sum %ld",(unsigned long) sum);
if(expect(remote,sum,remote->szero+remote->pzero))
{
state=0;
//LOGPRINTF(2,"2T");
}
else if(expect(remote,sum,remote->sone+remote->pone))
{
state=1;
//LOGPRINTF(2,"3T");
}
else if(expect(remote,sum,remote->stwo+remote->ptwo))
{
state=2;
//LOGPRINTF(2,"4T");
}
else if(expect(remote,sum,remote->sthree+remote->pthree))
{
state=3;
//LOGPRINTF(2,"6T");
}
else
{
//LOGPRINTF(2,"no match for %d+%d=%d",deltas,deltap,sum);
return((ir_code) -1);
}
if(state==3) /* 6T */
{
i+=2;code<<=2;state=-1;
code|=0;
}
else if(laststate==2 && state==0) /* 4T2T */
{
i+=2;code<<=2;state=-1;
code|=1;
}
else if(laststate==1 && state==1) /* 3T3T */
{
i+=2;code<<=2;state=-1;
code|=2;
}
else if(laststate==0 && state==2) /* 2T4T */
{
i+=2;code<<=2;state=-1;
code|=3;
}
else if(laststate==-1)
{
/* 1st bit */
}
else
{
return((ir_code) -1);
}
laststate=state;
}
return(code);
}
else if(is_serial(remote))
{
int received;
int space, start_bit, stop_bit, parity_bit;
int parity;
lirc_t delta,origdelta,pending,expecting, gap_delta;
lirc_t base, stop;
lirc_t max_space, max_pulse;
base=1000000/remote->baud;
/* start bit */
set_pending_pulse(base);
received=0;
space=(rec_buffer.pendingp==0); /* expecting space ? */
start_bit=0;
stop_bit=0;
parity_bit=0;
delta=origdelta=0;
stop=base*remote->stop_bits/2;
parity=0;
gap_delta=0;
max_space = remote->sone*remote->bits_in_byte+stop;
max_pulse = remote->pzero*(1+remote->bits_in_byte);
if(remote->parity != IR_PARITY_NONE)
{
parity_bit = 1;
max_space += remote->sone;
max_pulse += remote->pzero;
bits += bits/remote->bits_in_byte;
}
while(received<bits || stop_bit)
{
if(delta==0)
{
delta=space ?
get_next_space(max_space):
get_next_pulse(max_pulse);
if(delta==0 && space &&
received+remote->bits_in_byte+parity_bit>=bits)
{
/* open end */
delta=max_space;
}
origdelta=delta;
}
if(delta==0)
{
//LOGPRINTF(1,"failed before bit %d",received+1);
return((ir_code) -1);
}
pending=(space ?
rec_buffer.pendings:rec_buffer.pendingp);
if(expect(remote, delta, pending))
{
delta=0;
}
else if(delta>pending)
{
delta-=pending;
}
else
{
//LOGPRINTF(1,"failed before bit %d",received+1);
return((ir_code) -1);
}
if(pending>0)
{
if(stop_bit)
{
//LOGPRINTF(5, "delta: %lu", delta);
gap_delta = delta;
delta=0;
set_pending_pulse(base);
set_pending_space(0);
stop_bit=0;
space=0;
//LOGPRINTF(3,"stop bit found");
}
else
{
//LOGPRINTF(3,"pending bit found");
set_pending_pulse(0);
set_pending_space(0);
if(delta==0)
{
space=(space ? 0:1);
}
}
continue;
}
expecting=(space ? remote->sone:remote->pzero);
if(delta>expecting || expect(remote,delta,expecting))
{
delta-=(expecting>delta ? delta:expecting);
received++;
code<<=1;
code|=space;
parity^=space;
//LOGPRINTF(2,"adding %d",space);
if(received%(remote->bits_in_byte+parity_bit)==0)
{
ir_code temp;
if((remote->parity == IR_PARITY_EVEN && parity) ||
(remote->parity == IR_PARITY_ODD && !parity))
{
//LOGPRINTF(1, "parity error ""after %d bits",received+1);
return((ir_code) -1);
}
parity = 0;
/* parity bit is filtered out */
temp=code>>(remote->bits_in_byte+parity_bit);
code=temp<<remote->bits_in_byte|
reverse(code>>parity_bit,
remote->bits_in_byte);
if(space && delta==0)
{
//LOGPRINTF(1,"failed at stop ""bit after %d bits",received+1);
return((ir_code) -1);
}
//LOGPRINTF(3,"awaiting stop bit");
set_pending_space(stop);
stop_bit=1;
}
}
else
{
if(delta==origdelta)