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);
}
inline int expectone(struct ir_remote *remote,int bit)
{
if(is_biphase(remote))
{
if(is_rc6(remote) &&
remote->toggle_bit>0 &&
bit==remote->toggle_bit-1)
{
if(remote->sone>0 &&
!expectspace(remote,2*remote->sone))
{
unget_rec_buffer(1);
return(0);
}
rec_buffer.pendingp=2*remote->pone;
}
else
{
if(remote->sone>0 && !expectspace(remote,remote->sone))
{
unget_rec_buffer(1);
return(0);
}
rec_buffer.pendingp=remote->pone;
}
}
else
{
if(remote->pone>0 && !expectpulse(remote,remote->pone))
{
unget_rec_buffer(1);
return(0);
}
if(remote->ptrail>0)
{
if(remote->sone>0 &&
!expectspace(remote,remote->sone))
{
unget_rec_buffer(2);
return(0);
}
}
else
{
rec_buffer.pendings=remote->sone;
}
}
return(1);
}
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);
}
int receive_decode(struct ir_remote *remote,
ir_code *prep,ir_code *codep,ir_code *postp,
int *repeat_flagp,lirc_t *remaining_gapp)
{
ir_code pre,code,post,code_mask=0,post_mask=0;
lirc_t sync;
int header;
struct timeval current;
sync=0; /* make compiler happy */
code=pre=post=0;
header=0;
if(hw.rec_mode==LIRC_MODE_MODE2 ||
hw.rec_mode==LIRC_MODE_PULSE ||
hw.rec_mode==LIRC_MODE_RAW)
{
rewind_rec_buffer();
rec_buffer.is_biphase=is_biphase(remote) ? 1:0;
/* we should get a long space first */
if(!(sync=sync_rec_buffer(remote)))
{
LOGPRINTF(1,"failed on sync");
return(0);
}
LOGPRINTF(1,"sync");
if(has_repeat(remote) && last_remote==remote)
{
if(remote->flags&REPEAT_HEADER && has_header(remote))
{
if(!get_header(remote))
{
LOGPRINTF(1,"failed on repeat "
"header");
return(0);
}
LOGPRINTF(1,"repeat header");
}
if(get_repeat(remote))
{
if(remote->last_code==NULL)
{
logprintf(LOG_NOTICE,"repeat code "
"without last_code "
"received");
return(0);
}
*prep=remote->pre_data;
*codep=remote->last_code->code;
*postp=remote->post_data;
*repeat_flagp=1;
*remaining_gapp=
is_const(remote) ?
(remote->gap>rec_buffer.sum ?
remote->gap-rec_buffer.sum:0):
(has_repeat_gap(remote) ?
remote->repeat_gap:remote->gap);
return(1);
}
else
{
LOGPRINTF(1,"no repeat");
rewind_rec_buffer();
sync_rec_buffer(remote);
}
}
if(has_header(remote))
{
header=1;
if(!get_header(remote))
{
header=0;
if(!(remote->flags&NO_HEAD_REP &&
(sync<=remote->gap+remote->gap*remote->eps/100
|| sync<=remote->gap+remote->aeps)))
{
LOGPRINTF(1,"failed on header");
return(0);
}
}
LOGPRINTF(1,"header");
}
}
if(is_raw(remote))
{
struct ir_ncode *codes,*found;
int i;
if(hw.rec_mode==LIRC_MODE_CODE ||
hw.rec_mode==LIRC_MODE_LIRCCODE)
return(0);
codes=remote->codes;
found=NULL;
while(codes->name!=NULL && found==NULL)
{
found=codes;
for(i=0;i<codes->length;)
{
if(!expectpulse(remote,codes->signals[i++]))
{
found=NULL;
rewind_rec_buffer();
sync_rec_buffer(remote);
break;
}
if(i<codes->length &&
!expectspace(remote,codes->signals[i++]))
{
found=NULL;
rewind_rec_buffer();
sync_rec_buffer(remote);
break;
}
}
codes++;
}
if(found!=NULL)
{
if(!get_gap(remote,
is_const(remote) ?
remote->gap-rec_buffer.sum:
remote->gap))
found=NULL;
}
if(found==NULL) return(0);
code=found->code;
}
else
{
if(hw.rec_mode==LIRC_MODE_CODE ||
hw.rec_mode==LIRC_MODE_LIRCCODE)
{
int i;
lirc_t sum;
# ifdef LONG_IR_CODE
LOGPRINTF(1,"decoded: %llx",rec_buffer.decoded);
# else
LOGPRINTF(1,"decoded: %lx",rec_buffer.decoded);
# endif
if((hw.rec_mode==LIRC_MODE_CODE &&
hw.code_length<remote->pre_data_bits
+remote->bits+remote->post_data_bits)
||
(hw.rec_mode==LIRC_MODE_LIRCCODE &&
hw.code_length!=remote->pre_data_bits
+remote->bits+remote->post_data_bits))
{
return(0);
}
for(i=0;i<remote->post_data_bits;i++)
{
post_mask=(post_mask<<1)+1;
}
post=rec_buffer.decoded&post_mask;
post_mask=0;
rec_buffer.decoded=
rec_buffer.decoded>>remote->post_data_bits;
for(i=0;i<remote->bits;i++)
{
code_mask=(code_mask<<1)+1;
}
code=rec_buffer.decoded&code_mask;
code_mask=0;
pre=rec_buffer.decoded>>remote->bits;
gettimeofday(¤t,NULL);
sum=remote->phead+remote->shead+
lirc_t_max(remote->pone+remote->sone,
remote->pzero+remote->szero)*
(remote->bits+
remote->pre_data_bits+
remote->post_data_bits)+
remote->plead+
remote->ptrail+
remote->pfoot+remote->sfoot+
remote->pre_p+remote->pre_s+
remote->post_p+remote->post_s;
rec_buffer.sum=sum>=remote->gap ? remote->gap-1:sum;
sync=time_elapsed(&remote->last_send,¤t)-
rec_buffer.sum;
}
else
{
if(!get_lead(remote))
int init_send(struct ir_remote *remote,struct ir_ncode *code)
{
int i, repeat=0;
if(is_grundig(remote) ||
is_goldstar(remote) || is_serial(remote) || is_bo(remote))
{
logprintf(LOG_ERR,"sorry, can't send this protocol yet");
return(0);
}
clear_send_buffer();
if(is_biphase(remote))
{
send_buffer.is_biphase=1;
}
if(repeat_remote==NULL)
{
remote->repeat_countdown=remote->min_repeat;
}
else
{
repeat = 1;
}
init_send_loop:
if(repeat && has_repeat(remote))
{
if(remote->flags&REPEAT_HEADER && has_header(remote))
{
send_header(remote);
}
send_repeat(remote);
}
else
{
if(!is_raw(remote))
{
ir_code next_code;
if(code->transmit_state == NULL)
{
next_code = code->code;
}
else
{
next_code = code->transmit_state->code;
}
send_code(remote, next_code, repeat);
if(has_toggle_mask(remote))
{
remote->toggle_mask_state++;
if(remote->toggle_mask_state==4)
{
remote->toggle_mask_state=2;
}
}
send_buffer.data=send_buffer._data;
}
else
{
if(code->signals==NULL)
{
logprintf(LOG_ERR, "no signals for raw send");
return 0;
}
if(send_buffer.wptr>0)
{
send_signals(code->signals, code->length);
}
else
{
send_buffer.data=code->signals;
send_buffer.wptr=code->length;
for(i=0; i<code->length; i++)
{
send_buffer.sum+=code->signals[i];
}
}
}
}
sync_send_buffer();
if(bad_send_buffer())
{
logprintf(LOG_ERR,"buffer too small");
return(0);
}
if(has_repeat_gap(remote) && repeat && has_repeat(remote))
{
remote->min_remaining_gap=remote->repeat_gap;
remote->max_remaining_gap=remote->repeat_gap;
}
else if(is_const(remote))
{
if(min_gap(remote)>send_buffer.sum)
{
remote->min_remaining_gap=min_gap(remote)-send_buffer.sum;
remote->max_remaining_gap=max_gap(remote)-send_buffer.sum;
}
else
{
logprintf(LOG_ERR,"too short gap: %u",remote->gap);
remote->min_remaining_gap=min_gap(remote);
remote->max_remaining_gap=max_gap(remote);
return(0);
}
}
else
{
remote->min_remaining_gap=min_gap(remote);
remote->max_remaining_gap=max_gap(remote);
}
/* update transmit state */
if(code->next != NULL)
{
if(code->transmit_state == NULL)
{
code->transmit_state = code->next;
}
else
{
code->transmit_state = code->transmit_state->next;
}
}
if((remote->repeat_countdown>0 || code->transmit_state != NULL) &&
remote->min_remaining_gap<LIRCD_EXACT_GAP_THRESHOLD)
{
if(send_buffer.data!=send_buffer._data)
{
lirc_t *signals;
int n;
LOGPRINTF(1, "unrolling raw signal optimisation");
signals=send_buffer.data;
n=send_buffer.wptr;
send_buffer.data=send_buffer._data;
send_buffer.wptr=0;
send_signals(signals, n);
}
LOGPRINTF(1, "concatenating low gap signals");
if(code->next == NULL || code->transmit_state == NULL)
{
remote->repeat_countdown--;
}
send_space(remote->min_remaining_gap);
flush_send_buffer();
send_buffer.sum=0;
repeat = 1;
goto init_send_loop;
}
LOGPRINTF(3, "transmit buffer ready");
return(1);
}
inline void send_data(struct ir_remote *remote,ir_code data,int bits,int done)
{
int i;
int all_bits = bit_count(remote);
ir_code mask;
if(is_rcmm(remote))
{
data=reverse(data,bits);
mask=1<<(all_bits-1-done);
if(bits%2 || done%2)
{
logprintf(LOG_ERR,"invalid bit number.");
return;
}
for(i=0;i<bits;i+=2,mask>>=2)
{
switch(data&3)
{
case 0:
send_pulse(remote->pzero);
send_space(remote->szero);
break;
/* 2 and 1 swapped due to reverse() */
case 2:
send_pulse(remote->pone);
send_space(remote->sone);
break;
case 1:
send_pulse(remote->ptwo);
send_space(remote->stwo);
break;
case 3:
send_pulse(remote->pthree);
send_space(remote->sthree);
break;
}
data=data>>2;
}
return;
}
data=reverse(data,bits);
mask=((ir_code) 1)<<(all_bits-1-done);
for(i=0;i<bits;i++,mask>>=1)
{
if(has_toggle_bit_mask(remote) && mask&remote->toggle_bit_mask)
{
data &= ~((ir_code) 1);
if(remote->toggle_bit_mask_state&mask)
{
data |= (ir_code) 1;
}
}
if(has_toggle_mask(remote) &&
mask&remote->toggle_mask &&
remote->toggle_mask_state%2)
{
data ^= 1;
}
if(data&1)
{
if(is_biphase(remote))
{
if(mask&remote->rc6_mask)
{
send_space(2*remote->sone);
send_pulse(2*remote->pone);
}
else
{
send_space(remote->sone);
send_pulse(remote->pone);
}
}
else if(is_space_first(remote))
{
send_space(remote->sone);
send_pulse(remote->pone);
}
else
{
send_pulse(remote->pone);
send_space(remote->sone);
}
}
else
{
if(mask&remote->rc6_mask)
{
send_pulse(2*remote->pzero);
send_space(2*remote->szero);
}
else if(is_space_first(remote))
{
send_space(remote->szero);
send_pulse(remote->pzero);
}
else
{
send_pulse(remote->pzero);
send_space(remote->szero);
}
}
data=data>>1;
}
}
