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decode.c
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/*
* Copyright 2010-2011 Brian Uechi <[email protected]>
*
* This file is part of mochad.
*
* mochad is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* mochad 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 mochad. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/timeb.h>
#include <time.h>
#include "global.h"
#include "decode.h"
#include "x10state.h"
#include "x10_write.h"
#include "encode.h"
union x10addr {
unsigned char houseunit; // Normalized codes 7..4 house 3..0 unit
unsigned char security8; // RF security code, old 8 bit
unsigned int security17; // RF security code, 17 bits 23..7 inclusive
};
enum eventfunc {
EV_ON,EV_OFF,EV_DIM,EV_BRIGHT
};
typedef enum eventfunc eventfunc_t;
enum eventinterface {
EV_RX_PLC=0,
EV_RX_RF=1,
EV_TX_PLC=2,
EV_TX_RF=3
};
typedef enum eventinterface eventinterface_t;
typedef struct x10event {
eventinterface_t evint;
eventfunc_t evfunc;
union {
struct {
char housec; // 'A'..'P'
unsigned char unitc; // 1..16
};
unsigned char security8; // 8 bit security code
unsigned int security17; // 17 bit security code bits 23..7
};
} x10event_t;
/* For all input values 0..255, return 1 for odd parity, 0 for even. */
static const char Paritytable[256] = {
0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,1,0,0,1,0,1,
1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,
1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,
0,1,0,1,1,0,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,
1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,
0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,1,0,0,1,
0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0
};
static const unsigned char HouseUnitTable[] = {
// House code char Unit code Index
'M', // 13 00
'E', // 5 01
'C', // 3 02
'K', // 11 03
'O', // 15 04
'G', // 7 05
'A', // 1 06
'I', // 9 07
'N', // 14 08
'F', // 6 09
'D', // 4 10
'L', // 12 11
'P', // 15 12
'H', // 8 13
'B', // 2 14
'J', // 10 15
};
static const unsigned char HouseUnitTableRF[] = {
// House code char House num
'M', // 00
'N', // 01
'O', // 02
'P', // 03
'C', // 04
'D', // 05
'A', // 06
'B', // 07
'E', // 08
'F', // 09
'G', // 10
'H', // 11
'K', // 12
'L', // 13
'I', // 14
'J', // 15
};
static const char *Funcname[] = {
"All units off", /* 00 */
"All lights on", /* 01 */
"On",
"Off",
"Dim",
"Bright",
"All lights off", /* 06 */
"Ext code 1, data, control",
"Hail request",
"Hail ack",
"Ext code 3, security msg",
"Unused",
"Ext code 2, meter read, DSM",
"Status on",
"Status off",
"Status request"
};
static int huc_decode(unsigned char houseunit, char *housechar)
{
*housechar = HouseUnitTable[(houseunit & 0xf0) >> 4];
return (HouseUnitTable[houseunit & 0x0f] -'A') + 1;
}
static int hfc_decode(unsigned char houseunit, char *housechar)
{
*housechar = HouseUnitTable[(houseunit & 0xf0) >> 4];
return (houseunit & 0x0f);
}
static int uc_decode(unsigned char unit)
{
return (HouseUnitTable[unit & 0x0f] -'A') + 1;
}
// 5D 20 64 9B 00 FB -- A9 ON
// 64 = A = *housechar
// 00 = unitfunc & 1<<5 = *funcint 0=ON,1=OFF
// 5D 20 E0 1F 20 DF -- P1 OFF
static int hufc_decode(unsigned char houseunit, unsigned char unitfunc,
char *housechar, unsigned int *funcint)
{
int unitint;
*housechar = HouseUnitTableRF[(houseunit & 0xf0) >> 4];
switch (unitfunc)
{
case 0x88: // Bright
*funcint = 3;
return 0;
case 0x98: // Dim
*funcint = 2;
return 0;
default:
*funcint = (unitfunc & (1<<5)) >> 5; // 0=ON, 1=OFF
unitint = (houseunit & (1<<2)) << 1;
unitint |= (unitfunc & (1<<6)) >> 4;
unitint |= (unitfunc & (1<<3)) >> 2;
unitint |= (unitfunc & (1<<4)) >> 4;
return unitint + 1;
}
}
/* PLC A1 ON
* 5A 02 00 66
* 5A PLC
* 02 2 bytes follow
* 00 house/unit code follows
* 66 house/unit code
* 5A 02 01 62
* 5A PLC
* 02 2 bytes follow
* 01 house/function code follows
* 62 house/function code
*
* PLC Bright
* 5A 03 02 16 65
* 5A PLC
* 03 3 bytes follow
* 02 bright/dim
* 16 00010 1 1 0
* 00010 # of dims (2)
* 1 always 1
* 1 function follows
* 0 standard data
* 65 0110 0101
* 0110 house code 6=A
* 0101 function=Bright
*/
void cm15a_decode_plc(int fd, unsigned char *buf, size_t len)
{
char housechar;
int unitint, funcint;
int codelen;
int dims;
dbprintf("%s(%d,%u) ", __func__, fd, len);
hexdump(buf, len);
// new event
// ev->evint = EV_RX_PLC;
if (len < 4) {
dbprintf("len too short %d\n", len);
return;
}
if (len > 8) {
dbprintf("len too long %d\n", len);
return;
}
switch (buf[2])
{
case 0x00: // house/unit code follows
codelen = buf[1];
if (codelen != 2) {
dbprintf("codelen must be 2 != %d\n", codelen);
return;
}
unitint = huc_decode(buf[3], &housechar);
hua_add(housechar-'A', unitint-1);
sockprintf(fd, "%cx PL HouseUnit: %c%d\n",
(buf[0] == 0x5a) ? 'R' : 'T',
housechar, unitint);
break;
case 0x01: // house/function code follows
codelen = buf[1];
if (codelen != 2) {
dbprintf("codelen must be 2 != %d\n", codelen);
return;
}
funcint = hfc_decode(buf[3], &housechar);
dbprintf("h %c func %d\n", housechar, funcint);
switch (funcint)
{
/* There is no way to determine which modules are lamp vs.
* applicance modules.
* All units = lamp and appliance modules
* All lights = lamp modules
*/
case 0: /* All units off */
case 6: /* All lights off */
hua_func_all_off(housechar-'A');
break;
case 1: /* All lights on */
hua_func_all_on(housechar-'A');
break;
case 2:
case 13: /* Status On */
hua_func_on(housechar-'A');
dbprintf("%s case 2 break\n", __func__);
break;
case 3:
case 14: /* Status Off */
hua_func_off(housechar-'A');
break;
case 4: /* Dim XXX */
break;
case 5: /* Bright XXX */
break;
case 7: /* Extended Code */
break;
case 8: /* Hail request */
break;
case 9: /* Hail Ack */
break;
case 10: /* Pre-set Dim */
break;
case 11: /* Pre-set Dim */
break;
case 12: /* Extended data */
break;
case 15: /* Status Request */
break;
default:
break;
}
sockprintf(fd, "%cx PL House: %c Func: %s\n",
(buf[0] == 0x5a) ? 'R' : 'T',
housechar, Funcname[funcint]);
dbprintf("exit case 0x01\n");
break;
case 0x02: // dim/bright code follows
codelen = buf[1];
if (codelen != 3) {
dbprintf("codelen must be 3 != %d\n", codelen);
return;
}
dims = (buf[3] & 0xF8) >> 3;
funcint = hfc_decode(buf[4], &housechar);
sockprintf(fd, "%cx PL House: %c Func: %s(%d)\n",
(buf[0] == 0x5a) ? 'R' : 'T',
housechar, Funcname[funcint], dims);
break;
case 0x07: /* Extended transmission follows */
/* This is never received from the CM51A but is here to decode Tx. */
/* Sample: 5a 05 07 e7 02 1f 31 */
/* PL B3 XDIM 31
* Header 8 bits (7)
* House code: 4 bits, function code: 4 bits (7)
* Unit code: 0x02 = unit 3
* Data: 8 bits
* Command: 8 bits
*/
if (len < 7) {
dbprintf("too short %d\n", len);
return;
} else if (len > 7) {
dbprintf("too long %d\n", len);
return;
}
funcint = hfc_decode(buf[3], &housechar);
unitint = uc_decode(buf[4]);
sockprintf(fd, "%cx PL HouseUnit: %c%d Func: %s Data: %02X Command: %02X\n",
(buf[0] == 0x5a) ? 'R' : 'T',
housechar, unitint, Funcname[funcint], buf[5], buf[6]);
hua_setstatus_xdim(housechar-'A', unitint-1, buf[5]);
break;
case 0x08: /* Extended receive follows */
/* This is received when an extended pre-set dim is sent.
* Note the byte order of the last 4 bytes is reversed compared
* to Tx above.
*/
/* Sample: 5A 05 08 31 21 02 E7 B3 */
/* Sample: 5A 05 08 31 2F 0A E7 B4 */
/* PL B3 XDIM 33
* Header 8 bits (8)
* Command: 8 bits 0x31 pre-set dim
* Data: 8 bits 0x21 = 33 dim level
* Unit code: 4 bits, 0x02 = unit 3, 0x0a = unit 4
* House code: 4 bits, function code: 4 bits (7)
*/
if (len < 7) {
dbprintf("too short %d\n", len);
return;
} else if (len > 7) {
dbprintf("too long %d\n", len);
return;
}
funcint = hfc_decode(buf[6], &housechar);
unitint = uc_decode(buf[5]);
sockprintf(fd, "%cx PL HouseUnit: %c%d Func: %s Data: %02X Command: %02X\n",
(buf[0] == 0x5a) ? 'R' : 'T',
housechar, unitint, Funcname[funcint], buf[4], buf[3]);
hua_setstatus_xdim(housechar-'A', unitint-1, buf[4]);
break;
default:
dbprintf("Not supported %d\n", buf[2]);
break;
}
dbprintf("%s exit\n", __func__);
}
/* TODO sort and binary search? Or make 256 entry table and index. Not sure how
* sparse the table would be.
* 1<<7 1=close/normal, 0=open/alert
* 1<<6 1=cover off(tamper), 0=cover on
* 1<<2 delay 0=max, 1=min
* 1<<0 1=battery low?, 0=battery OK
*/
static const struct SecEventRec SecEventNames[] = {
{0x0C, "Motion_alert_MS10A"},
{0x8C, "Motion_normal_MS10A"},
{0x0D, "Motion_alert_low_MS10A"}, /* MS10 does not emit this */
{0x8D, "Motion_normal_low_MS10A"}, /* MS10 does not emit this */
{0x04, "Contact_alert_min_DS10A"},
{0x84, "Contact_normal_min_DS10A"},
{0x44, "Contact_alert_min_tamper_DS12A"},
{0xC4, "Contact_normal_min_tamper_DS12A"},
{0x00, "Contact_alert_max_DS10A"},
{0x80, "Contact_normal_max_DS10A"},
{0x40, "Contact_alert_max_tamper_DS12A"},
{0xC0, "Contact_normal_max_tamper_DS12A"},
{0x01, "Contact_alert_min_low_DS10A"}, /* _low = low battery */
{0x81, "Contact_normal_min_low_DS10A"},
{0x05, "Contact_alert_max_low_DS10A"},
{0x85, "Contact_normal_max_low_DS10A"},
{0x06, "Arm_KR10A"},
{0x86, "Disarm_KR10A"},
{0x46, "Lights_On_KR10A"},
{0xC6, "Lights_Off_KR10A"},
{0x26, "Panic_KR10A"},
{0x03, "Panic_KR15A"}, /* Big red button */
{0x00, NULL},
};
static const struct SecEventRec SecRemoteKeyNames[] = {
{0x0E, "Arm_Home_min_SH624"},
{0x06, "Arm_Away_min_SH624"},
{0x0A, "Arm_Home_max_SH624"},
{0x02, "Arm_Away_max_SH624"},
{0x82, "Disarm_SH624"},
{0x22, "Panic_SH624"},
{0x42, "Lights_On_SH624"},
{0xC2, "Lights_Off_SH624"},
{0x04, "Motion_alert_SP554A"}, //DG
{0x84, "Motion_normal_SP554A"}, //DG
{0x0C, "Motion_alert_Home_Away_SP554A"},
{0x8C, "Motion_normal_Home_Away_SP554A"},
{0x00, NULL},
};
struct CamRemoteRec {
const size_t commandlen;
const unsigned char command[8];
const char *name;
};
static const char *RFCAMKeyCodes[] = {
/* 0x54 */ "CAMPRESET5",
/* 0x55 */ "CAMEDITPRESET5",
/* 0x56 */ "CAMPRESET6",
/* 0x57 */ "CAMEDITPRESET6",
/* 0x58 */ "CAMPRESET7",
/* 0x59 */ "CAMEDITPRESET7",
/* 0x5A */ "CAMPRESET8",
/* 0x5B */ "CAMEDITPRESET8",
/* 0x5C */ "CAMPRESET9",
/* 0x5D */ "CAMEDITPRESET9",
/* 0x5E */ NULL,
/* 0x5F */ NULL,
/* 0x60 */ "CAMLEFT",
/* 0x61 */ "CAMRIGHT",
/* 0x62 */ "CAMUP",
/* 0x63 */ "CAMDOWN",
/* 0x64 */ "CAMPRESET1",
/* 0x65 */ "CAMEDITPRESET1",
/* 0x66 */ "CAMPRESET2",
/* 0x67 */ "CAMEDITPRESET2",
/* 0x68 */ "CAMPRESET3",
/* 0x69 */ "CAMEDITPRESET3",
/* 0x6A */ "CAMPRESET4",
/* 0x6B */ "CAMEDITPRESET4",
/* 0x6C */ "CAMCENTER",
/* 0x6D */ NULL,
/* 0x6E */ "CAMSWEEP"
};
#define RFCAMENTRIES (sizeof(RFCAMKeyCodes)/sizeof(RFCAMKeyCodes[0]))
/* Given binary data packet from X10 controller (CM15A or CM19A),
* find matching human-readable name for remote button
* 0x14 Command type:RF Camera
* 0x47 (house code + (keycode - 0x2B)) & 0xFF
* 0x62 key code (RFCAMKeyCodes)
* 0x10 house code (HouseUnitTableRF)
*/
static const char *findCamRemoteName(const unsigned char *camcommand, size_t commandlen)
{
static char remotekeyname[32];
int keycode, housecode, checksum;
unsigned char mychecksum;
int keyindex;
if (camcommand == NULL || commandlen < 4 || *camcommand++ != 0x14)
return NULL;
checksum = *camcommand++;
keycode = *camcommand++;
housecode = (*camcommand >> 4) & 0x0F;
mychecksum = ((housecode << 4) + (keycode - 0x2B)) & 0xFF;
if (checksum != mychecksum) return NULL;
keyindex = keycode - 0x54;
if ( (keyindex < 0) || (keyindex >= RFCAMENTRIES) )
return NULL;
if (RFCAMKeyCodes[keyindex] == NULL) return NULL;
snprintf(remotekeyname, sizeof(remotekeyname), "%c %s",
HouseUnitTableRF[housecode], RFCAMKeyCodes[keyindex]);
return remotekeyname;
}
// Given human-readable name for remote button, find
// binary data packet to be sent to X10 controller (CM15A or CM19A)
int findCamRemoteCommand(const char *keyname)
{
const char *p;
int keyindex;
if (keyname == NULL) return -1;
for (keyindex = 0; keyindex < RFCAMENTRIES; keyindex++) {
p = RFCAMKeyCodes[keyindex];
if (p && strcmp(keyname, p) == 0) return keyindex + 0x54;
}
return -1;
}
/*
* 5D 29 7F 70 8C 73 CA 00 from MS10,DS10,KR10 17(?) bit RF address
* | | | | | |
* | | | | | addr3
* | | | | addr2
* | | | XOR with prev byte=0xff
* | | function/key
* | XOR with prev byte==0x0f
* addr1
*/
static int secaf_decode(unsigned char *buf, unsigned int len,
unsigned char *secaddr, unsigned int *funcint)
{
if (len < 8) return -1;
if (((buf[2] ^ buf[3]) != 0x0f) || ((buf[4] ^ buf[5]) != 0xff)) {
dbprintf("Invalid checksum\n");
return -1;
}
if (Paritytable[buf[6] ^ buf[7]]) {
dbprintf("Invalid parity\n");
return -2;
}
*secaddr++ = buf[2];
*secaddr++ = buf[6];
*secaddr++ = buf[7];
*funcint = buf[4];
return 0;
}
const char *findSecEventName(unsigned char secev)
{
int i;
for (i = 0; SecEventNames[i].name; i++)
{
if (secev == SecEventNames[i].funct) return SecEventNames[i].name;
}
return NULL;
}
const char *findSecRemoteKeyName(unsigned char secev)
{
int i;
for (i = 0; SecRemoteKeyNames[i].name; i++)
{
if (secev == SecRemoteKeyNames[i].funct) return SecRemoteKeyNames[i].name;
}
return NULL;
}
// Repeat received RF command. Just change first byte to 0xEB and send it back
// to the controller.
static int repeatRF(int fd, unsigned char *buf, size_t len)
{
unsigned char saved = *buf;
int retval = 0;
if (RfToRf16) {
sockprintf(fd, "RfToRf repeat\n");
// Change Rx code to Tx code
*buf = 0xEB;
if (Cm19a)
retval = x10_write(buf+1, len-1);
else
retval = x10_write(buf, len);
*buf = saved;
}
return retval;
}
typedef uint64_t timems_t;
/* Get system time in milliseconds */
static timems_t get_timems(void)
{
struct timeb tp;
ftime(&tp);
return (timems_t) (tp.time * 1000) + tp.millitm;
}
#define DUP_TIME (650)
/* if (buf,len) not in dups, add (buf,len) with curtime+100, return 0
* if (buf,len) in dups && timer not expired, discard (buf,len), return 1
* if (buf,len) in dups && timer expired, add (buf,len) with curtime+100ms,
* return 0
* if len==-1, return 1 if Rx is still going on, else return 0
*/
static int dup_filter(const unsigned char *buf, int len)
{
struct dup_entry {
timems_t timems; /* Expire time in milliseconds */
unsigned char rf_command[16]; /* RF command */
int rf_cmd_len; /* 0=unused */
};
static struct dup_entry dups[16];
int i, firstunused=-1, add_index, inuse=0;
struct dup_entry *p;
timems_t timems;
#define DUP_MAX (sizeof(dups)/sizeof(dups[0]))
timems = get_timems();
for (i = 0; i < DUP_MAX; i++) {
p = &dups[i];
if (p->rf_cmd_len) {
if ((p->rf_cmd_len == len) && (memcmp(p->rf_command, buf, len) == 0)) {
/* Found it */
/* printf("delta %d\n", (unsigned int)p->timems - (unsigned int)timems); */
if (timems > p->timems) {
/* Entry has expired so reuse it with fresh timeout */
p->timems = get_timems() + DUP_TIME;
/* printf("dup_filter reuse @ %d\n", i); */
return 0;
}
else {
/* Entry has not expired so ignore it */
/* printf("dup_filter ignore @ %d\n", i); */
return 1;
}
}
else {
if (timems > p->timems) {
/* Entry has expired so mark it unused */
p->rf_cmd_len = 0;
if (firstunused == -1) firstunused = i;
}
else
inuse++;
}
}
else {
if (firstunused == -1) firstunused = i;
}
}
if (len == -1) return (inuse != 0);
/* Did not find in dups so add it */
add_index = firstunused;
if (firstunused == -1) {
/* Use the entry closest to expiring */
int min=dups[0].timems;
add_index = 0;
for (i = 1; i < DUP_MAX; i++) {
if (dups[i].timems < min) {
min = dups[i].timems;
add_index = i;
}
}
}
/* printf("dup_filter add @ %d\n", add_index); */
p = &dups[add_index];
p->timems = get_timems() + DUP_TIME;
memcpy(p->rf_command, buf, len);
p->rf_cmd_len = len;
return 0;
}
void setClock(void) {
unsigned char sendbuff[9];
struct tm *tm;
time_t t;
int size = 0;
time(&t);
tm = localtime(&t);
sendbuff[size++]= 0x9b; //function code
sendbuff[size++]= tm->tm_sec; //seconds
sendbuff[size++]= tm->tm_min + 60 * (tm->tm_hour & 1); //0-199
sendbuff[size++]= tm->tm_hour >> 1; //0-11 (hours/2)
sendbuff[size++]= tm->tm_yday; //really 9 bits
sendbuff[size]= 1 << tm->tm_wday; //daymask (7 bits)
if(tm->tm_yday & 0x100) //
sendbuff[size] |= 0x80;
size++;
sendbuff[size++]= 0x60; // house (0:timer purge, 1:monitor clear, 3:battery clear
sendbuff[size++]= 0x00; // Filler (???)
// Set the time properly
x10_write((unsigned char *) sendbuff, 8);
}
/* RF A1 ON
* 5D 20 60 9F 00 FF
* 5D RF
* 20 standard RF
* 60 0110 house code
* 9F 10011111 complement
* 00 0000 funct ON, 0000
* FF 11111111 complement
*
* RF A1 OFF
* 5D 20 60 9F 20 DF
* 5D RF
* 20 standard RF
* 60 0110 house code
* 9F 10011111 complement
* 20 0010 funct OFF 0000
* DF 11011111 complement
*
* RF A9 ON
* 5D 20 64 9B 00 FB
* 5D RF
* 20 Standard RF
* 64 0110 house=0110=A, 0100 unit 9-16
* 9B 1001 1011 complement of previous byte
* 00 0000 0000 function ON
* FB 1111 1011 lsnyb complement of buf[2]
*
*/
void cm15a_decode_rf(int fd, unsigned char *buf, unsigned int len)
{
char housechar;
int unitint, rc;
unsigned int funcint;
unsigned char secaddr[3];
unsigned char chksum;
char cmdbuf[80];
const char *commandp;
dbprintf("%s(%d,%u) ", __func__, fd, len);
hexdump(buf, len);
/* Skip over extra 0x5Ds */
while ((buf[1] == 0x5D) && len) {
dbprintf("Skipping extra 0x5D\n");
buf++;
len--;
}
if (len < 5) {
sockprintf(fd, "too short %d\n", len);
sockhexdump(fd, buf, len);
return;
}
if (len > 8) {
sockprintf(fd, "too long %d\n", len);
sockhexdump(fd, buf, len);
return;
}
switch (buf[1])
{
case 0x14: // X10 RF camera
commandp = findCamRemoteName(&buf[1], len-1);
if (commandp) {
if (dup_filter(buf, len)) return;
sockprintf(fd, "%cx RFCAM %s\n", (buf[0] == 0x5d) ? 'R' : 'T',
commandp);
repeatRF(fd, buf, len);
}
else {
sockprintf(fd, "Unknown RF camera command\n");
sockhexdump(fd, buf, len);
}
break;
case 0x20: // standard X10 RF
chksum = buf[2] ^ buf[3];
if (chksum == 0x0f) {
/* 5D 20 E2 ED 0A F5 from SH624
* | | | | XOR with prev byte=0xff
* | | key code
* | XOR with prev byte==0x0f
* 8 bit security code change by pressing CODE button
*/
if ((buf[4] ^ buf[5]) != 0xff) {
sockprintf(fd, "Invalid checksum\n");
sockhexdump(fd, buf, len);
return;
}
if (dup_filter(buf, len)) return;
secaddr[0] = 0;
secaddr[1] = 0;
secaddr[2] = buf[2];
hua_sec_event(secaddr, buf[4], 1);
sockprintf(fd, "%cx RFSEC Addr: 0x%02X Func: %s\n",
(buf[0] == 0x5d) ? 'R' : 'T',
buf[2], findSecRemoteKeyName(buf[4]));
repeatRF(fd, buf, len);
}
else if (chksum == 0xff) {
/* 5D 20 60 9F 00 FF
* | | |
* | | unit/function
* | XOR with prev byte=0xff
* house code/unit
*/
chksum = (buf[4] ^ buf[5]);
/* CM15A for Unit codes 9-16 ON/OFF produces 0xFB checksum */
if ( (chksum != 0xff) && (chksum != 0xfb) ) {
sockprintf(fd, "Invalid checksum\n");
sockhexdump(fd, buf, len);
return;
}
if (dup_filter(buf, len)) return;
unitint = hufc_decode(buf[2], buf[4], &housechar, &funcint);
/* dbprintf("h %c func %d\n", housechar, funcint); */
if (funcint > 1) { // Dim or Bright
sockprintf(fd, "%cx RF House: %c Func: %s\n",
(buf[0] == 0x5d) ? 'R' : 'T',
housechar, Funcname[funcint+2]);
repeatRF(fd, buf, len);
if (!Cm19a && (RfToPl16 & (1 << (housechar - 'A')))) {
rc = snprintf(cmdbuf, sizeof(cmdbuf), "PL %c %s",
housechar, Funcname[funcint+2]);
if (rc > 0)
processcommandline(fd, cmdbuf);
else {
sockprintf(fd, "cmdbuf too short\n");
sockhexdump(fd, buf, len);
}
}
}
else { // On or Off
hua_add(housechar-'A', unitint-1);
if (funcint)
hua_func_off(housechar-'A');
else
hua_func_on(housechar-'A');
sockprintf(fd, "%cx RF HouseUnit: %c%d Func: %s\n",
(buf[0] == 0x5d) ? 'R' : 'T',
housechar, unitint, Funcname[funcint+2]);
repeatRF(fd, buf, len);
if (!Cm19a && (RfToPl16 & (1 << (housechar - 'A')))) {
rc = snprintf(cmdbuf, sizeof(cmdbuf), "PL %c%d %s",
housechar, unitint, Funcname[funcint+2]);
if (rc > 0)
processcommandline(fd, cmdbuf);
else {
sockprintf(fd, "cmdbuf too short\n");
sockhexdump(fd, buf, len);
}
}
}
}
else {
sockprintf(fd, "Invalid checksum 0x%02X\n", chksum);
sockhexdump(fd, buf, len);
}
break;
case 0x29: // security X10 RF
rc = secaf_decode(buf, len, secaddr, &funcint);
switch (rc) {
case 0:
if (dup_filter(buf, len)) return;
hua_sec_event(secaddr, funcint, 0);
sockprintf(fd, "%cx RFSEC Addr: %02X:%02X:%02X Func: %s\n",
(buf[0] == 0x5d) ? 'R' : 'T',
secaddr[0], secaddr[1], secaddr[2],
findSecEventName(funcint));
repeatRF(fd, buf, len);
break;
case -1:
sockprintf(fd, "Invalid checksum\n");
break;
case -2:
sockprintf(fd, "Invalid parity\n");
break;
default:
sockprintf(fd, "???\n");
sockhexdump(fd, buf, len);
break;
}
break;
#if 0
case 0x5A: // CM15A internal RF to PL repeater is on so disable it
dbprintf("Disabling internal RF to PL repeater\n");
x10_write((unsigned char *)"\xdb\x1f\xf0", 3);
x10_write((unsigned char *)"\xfb\x20\x00\x02", 4);
x10_write((unsigned char *)"\xbb\x00\x00\x05\x00\x14\x20\x28", 8);
break;
#endif
case 0x24: // ????
case 0x28: // ????
// 5D 24 EE 11 8E 79 40
// 5d 28 33 2d 18 e6 a5
// 5d 28 33 2c 19 e6 a5
default:
sockprintf(fd, "Not supported %02X\n", buf[1]);
sockhexdump(fd, buf, len);
break;
}
}
void cm15a_decode(int fd, unsigned char *buf, unsigned int len)
{
unsigned char bufcm19a[9];
unsigned char *p = buf;
if (len < 4) return;
if (Cm19a) {
/* Add 0x5d to front so USB packet from the CM19A looks just like
* a USB packet from the CM15A. Call the same decode function.
* The CM19A does RF but not PL.
*/
p = bufcm19a;
*p = 0x5d;
memcpy(p+1, buf, len);
len++;
}
if (raw_data) {
mh_sockhexdump(fd, p, len);
}
/*
** From Dan Suther's CM11A document:
**
** #define ACK 0x00 //* 0x00 Checksum ACK
** #define READY 0x55 //* 0x55 Interface Ready
**
** #define POLL 0x5A //* 0x5A Interface Poll Signal
** #define POLL_ACK 0xC3 //* 0xC3 PC response to the Poll
** #define MACRO_RESP 0xFB //* PC response to Macro poll
** #define FastMacro 0xA5 //* Fast Macro Download
** #define PFail 0xA5 //* Power Fail
** #define STAT_REQST 0x8B //* Status Request
** #define EEPROM_EVENT 0x5B //* EEPROM address
** #define TIME_DL 0x9B //* Response to a POLL
**
** #define EnableRI 0xEB //* Enable Ring Indicator
** #define DisablRI 0xDB //* Disable Ring Indicator
**
** #define FFail 0xF3 //* Filter fail
** #define CPPFail 0xA6 //* CP10 Power Fail
**
*/
switch (*p)
{
case 0xa5: // Want clock set
setClock();
break;
case 0x55: // ACK last send
break;
case 0x5a: // PLC event
cm15a_decode_plc(fd, p, len);
break;
case 0x5b: // Macro reponse
break;
case 0x5d: // RF event
#if 0
if (p[1] == 0x5A) {
sockprintf(fd, "Extra 0x5D?\n");
cm15a_decode_plc(fd, p+1, len-1);
}
else
#endif
cm15a_decode_rf(fd, p, len);
break;
default:
break;
}
}