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Support Philips RC-6 protocol

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NIIBE Yutaka
2010-12-28 20:01:43 +09:00
parent 315565ace0
commit b1411757e5
2 changed files with 125 additions and 7 deletions
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4
ChangeLog
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@@ -1,3 +1,7 @@
2010-12-28 NIIBE Yutaka <gniibe@fsij.org>
* src/pin-cir.c (cir_timer_interrupt): Support Philips RC-6 protocol.
2010-12-27 NIIBE Yutaka <gniibe@fsij.org>
* src/pin-cir.c (cir_timer_interrupt): Support Sony protocol.

128
src/pin-cir.c
View File

@@ -31,6 +31,8 @@
#define DEBUG_CIR 1
#endif
/*
* Philips RC-6 Protocol: (START + 1 + MODE + TR + 32-bit / 16-bit)
*
* NEC Protocol: (START + 32-bit + STOP) + (START + STOP) x N
* 32-bit: 8-bit command inverted + 8-bit command + 16-bit address
* Example: Controller of Toshiba REGZA
@@ -154,7 +156,15 @@ static uint16_t *cirinput_p;
#endif
static uint32_t cir_data;
static uint8_t cir_proto;
#define CIR_PROTO_RC5 1 /* Not yet supported */
#define CIR_PROTO_RC6 2
#define CIR_PROTO_OTHER 3
static uint8_t cir_data_sub;
static uint8_t cir_seq;
#define CIR_BIT_START_RC5_DETECT 2000
#define CIR_BIT_START_RC5_LENGTH (889 + 889/2)
#define CIR_BIT_PERIOD_RC6 444
#define CIR_BIT_PERIOD 1500
#define CIR_BIT_SIRC_PERIOD_ON 1000
@@ -208,6 +218,7 @@ pin_main (void *arg)
#endif
DEBUG_INFO ("**** CIR data:");
DEBUG_WORD (cir_data);
DEBUG_BYTE (cir_seq);
cir_init ();
}
@@ -272,10 +283,94 @@ cir_timer_interrupt (void)
if ((TIM3->SR & TIM_SR_TIF))
{
if (cir_seq >= 1)
if (cir_seq == 0)
{
if (on >= CIR_BIT_START_RC5_DETECT)
{
cir_proto = CIR_PROTO_OTHER;
cir_data_sub = 0;
}
else
{
cir_proto = CIR_PROTO_RC5;
if (on >= CIR_BIT_START_RC5_LENGTH)
cir_data_sub = 1;
else
cir_data_sub = 0;
}
}
else if (cir_proto == CIR_PROTO_OTHER)
{
cir_data >>= 1;
cir_data |= (period >= CIR_BIT_PERIOD) ? 0x80000000 : 0;
if (cir_data_sub && on > CIR_BIT_PERIOD_RC6*3/2)
/* TR-bit 0 is detected */
{
cir_proto = CIR_PROTO_RC6;
cir_seq = 0;
cir_data = 0; /* ignore MODE bits */
if (on > CIR_BIT_PERIOD_RC6*5/2)
{
cir_data = 1;
if (off > CIR_BIT_PERIOD_RC6*3/2)
cir_data_sub = 1;
else
cir_data_sub = 0;
}
else /* Off must be short */
{
cir_data_sub = 1;
}
}
else if ((!cir_data_sub
&& on > CIR_BIT_PERIOD_RC6*3/2 && off > CIR_BIT_PERIOD_RC6*3/2))
/* TR-bit 1 is detected */
{
cir_proto = CIR_PROTO_RC6;
cir_seq = 0;
cir_data = 0; /* ignore MODE bits */
cir_data_sub = 0;
}
else
{
/* Check if it looks like TR-bit of RC6 protocol */
if (off <= CIR_BIT_PERIOD_RC6*3/2)
cir_data_sub = 0;
else
cir_data_sub = 1;
}
}
else if (cir_proto == CIR_PROTO_RC6)
{
if (cir_data_sub)
{
cir_data <<= 1;
if (on > CIR_BIT_PERIOD_RC6*3/2)
{
cir_data <<= 1;
cir_data |= 1;
cir_seq++;
if (off > CIR_BIT_PERIOD_RC6*3/2)
cir_data_sub = 1;
else
cir_data_sub = 0;
}
else /* Off must be short */
cir_data_sub = 1;
}
else
{
cir_data <<= 1;
cir_data |= 1;
/* On must be short */
if (off > CIR_BIT_PERIOD_RC6*3/2)
cir_data_sub = 1;
else
cir_data_sub = 0;
}
}
cir_seq++;
@@ -317,17 +412,36 @@ cir_timer_interrupt (void)
cir_seq++;
}
else
/* It must be the stop bit, just ignore */
{
;
if (cir_proto == CIR_PROTO_RC6)
{
cir_data <<= 1;
cir_seq++;
if (cir_data_sub)
{
if (on >= CIR_BIT_PERIOD_RC6*3/2)
{
cir_data <<= 1;
cir_data |= 1;
cir_seq++;
}
}
else
cir_data |= 1;
}
/* Or else, it must be the stop bit, just ignore */
}
if (cir_seq == 1 + 12
if ((cir_proto == CIR_PROTO_OTHER
&&
(cir_seq == 1 + 12
#if defined(DEBUG_CIR)
|| cir_seq > 12
|| cir_seq > 12
#endif
|| cir_seq == 1 + 32
|| cir_seq == 1 + 48)
|| cir_seq == 1 + 32
|| cir_seq == 1 + 48))
|| (cir_proto == CIR_PROTO_RC6
&& (cir_seq == 16 || cir_seq == 32)))
{
/* Notify thread */
chEvtSignal (pin_thread, (eventmask_t)1);