/*
* parse_inp_fnc_t inp_rcc8000
*
* grab data from input stream
*/
static u_long
inp_rcc8000(
parse_t *parseio,
char ch,
timestamp_t *tstamp
)
{
unsigned int rtc;
parseprintf(DD_PARSE, ("inp_rcc8000(0x%p, 0x%x, ...)\n", (void*)parseio, ch));
switch (ch)
{
case '\n':
parseprintf(DD_PARSE, ("inp_rcc8000: EOL seen\n"));
if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
return parse_end(parseio);
else
return rtc;
default:
if (parseio->parse_index == 0) /* take sample at start of message */
{
parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
}
return parse_addchar(parseio, ch);
}
}
bool
parse_timedout(
parse_t *parseio,
timestamp_t *tstamp,
struct timespec *del
)
{
struct timespec delta;
l_fp delt;
delt = tstamp->fp;
L_SUB(&delt, &parseio->parse_lastchar.fp);
delta = lfp_uintv_to_tspec(delt);
if (cmp_tspec(delta, *del) == TIMESPEC_GREATER_THAN)
{
parseprintf(DD_PARSE, ("parse: timedout: TRUE\n"));
return true;
}
else
{
parseprintf(DD_PARSE, ("parse: timedout: FALSE\n"));
return false;
}
}
/*
* parse_inp_fnc_t mbg_input
*
* grab data from input stream
*/
static u_long
mbg_input(
parse_t *parseio,
char ch,
timestamp_t *tstamp
)
{
unsigned int rtc;
parseprintf(DD_PARSE, ("mbg_input(0x%p, 0x%x, ...)\n", (void*)parseio, ch));
switch (ch)
{
case STX:
parseprintf(DD_PARSE, ("mbg_input: STX seen\n"));
parseio->parse_index = 1;
parseio->parse_data[0] = ch;
parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
return PARSE_INP_SKIP;
case ETX:
parseprintf(DD_PARSE, ("mbg_input: ETX seen\n"));
if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
return parse_end(parseio);
else
return rtc;
default:
return parse_addchar(parseio, ch);
}
}
/*
* parse_inp_fnc_t inp_trimtaip
*
* grab data from input stream
*/
static u_long
inp_trimtaip(
parse_t *parseio,
char ch,
timestamp_t *tstamp
)
{
unsigned int rtc;
parseprintf(DD_PARSE, ("inp_trimtaip(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
switch (ch)
{
case '>':
parseprintf(DD_PARSE, ("inp_trimptaip: START seen\n"));
parseio->parse_index = 1;
parseio->parse_data[0] = ch;
parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
return PARSE_INP_SKIP;
case '<':
parseprintf(DD_PARSE, ("inp_trimtaip: END seen\n"));
if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
return parse_end(parseio);
else
return rtc;
default:
return parse_addchar(parseio, ch);
}
}
/*
* parse_inp_fnc_t inp_hopf6021
*
* grab data from input stream
*/
static u_long
inp_hopf6021(
parse_t *parseio,
char ch,
timestamp_t *tstamp
)
{
unsigned int rtc;
parseprintf(DD_PARSE, ("inp_hopf6021(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
switch (ch)
{
case ETX:
parseprintf(DD_PARSE, ("inp_hopf6021: EOL seen\n"));
parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
return parse_end(parseio);
else
return rtc;
default:
return parse_addchar(parseio, ch);
}
}
unsigned int
parse_restart(
parse_t *parseio,
char ch
)
{
unsigned int updated = PARSE_INP_SKIP;
/*
* re-start packet - timeout - overflow - start symbol
*/
if (parseio->parse_index)
{
/*
* filled buffer - thus not end character found
* do processing now
*/
parseio->parse_data[parseio->parse_index] = '\0';
memcpy(parseio->parse_ldata, parseio->parse_data, (unsigned)(parseio->parse_index+1));
parseio->parse_ldsize = parseio->parse_index;
updated = PARSE_INP_TIME;
}
parseio->parse_index = 1;
parseio->parse_data[0] = ch;
parseprintf(DD_PARSE, ("parse: parse_restart: buffer start (updated = %x)\n", updated));
return updated;
}
static unsigned long
inp_sel240x( parse_t *parseio,
unsigned int ch,
timestamp_t *tstamp
)
{
unsigned long rc;
parseprintf( DD_PARSE,
("inp_sel240x(0x%lx, 0x%x, ...)\n",(long)parseio, ch));
switch( ch )
{
case '\x01':
parseio->parse_index = 1;
parseio->parse_data[0] = ch;
parseio->parse_dtime.parse_stime = *tstamp;
rc = PARSE_INP_SKIP;
break;
case '\n':
if( (rc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP )
{
rc = parse_end( parseio );
}
break;
default:
rc = parse_addchar( parseio, ch );
}
return rc;
}
static int
setup_stream(
queue_t *q,
int mode
)
{
mblk_t *mp;
mp = allocb(sizeof(struct stroptions), BPRI_MED);
if (mp)
{
struct stroptions *str = (struct stroptions *)(void *)mp->b_rptr;
str->so_flags = SO_READOPT|SO_HIWAT|SO_LOWAT;
str->so_readopt = (mode == M_PARSE) ? RMSGD : RNORM;
str->so_hiwat = (mode == M_PARSE) ? sizeof(parsetime_t) : 256;
str->so_lowat = 0;
mp->b_datap->db_type = M_SETOPTS;
mp->b_wptr += sizeof(struct stroptions);
putnext(q, mp);
return putctl1(WR(q)->q_next, M_CTL, (mode == M_PARSE) ? MC_SERVICEIMM :
MC_SERVICEDEF);
}
else
{
parseprintf(DD_OPEN,("parse: setup_stream - FAILED - no MEMORY for allocb\n"));
return 0;
}
}
/*ARGSUSED*/
static int
parseclose(
queue_t *q,
int flags
)
{
register parsestream_t *parse = (parsestream_t *)(void *)q->q_ptr;
register unsigned long s;
parseprintf(DD_CLOSE,("parse: CLOSE\n"));
s = splhigh();
if (parse->parse_dqueue)
close_linemon(parse->parse_dqueue, q);
parse->parse_dqueue = (queue_t *)0;
(void) splx(s);
parse_ioend(&parse->parse_io);
kmem_free((caddr_t)parse, sizeof(parsestream_t));
q->q_ptr = (caddr_t)NULL;
WR(q)->q_ptr = (caddr_t)NULL;
#ifdef VDDRV
parsebusy--;
#endif
return 0;
}
/*
* unregister our ISR routine - must call under splhigh()
*/
static void
close_zs_linemon(
register queue_t *q,
register queue_t *my_q
)
{
register struct zscom *zs;
register parsestream_t *parsestream = (parsestream_t *)(void *)my_q->q_ptr;
zs = ((struct zsaline *)(void *)q->q_ptr)->za_common;
if (!zs)
{
/*
* well - not found on startup - just say no (shouldn't happen though)
*/
return;
}
else
{
register struct savedzsops *szs = (struct savedzsops *)parsestream->parse_data;
zsopinit(zs, szs->oldzsops); /* reset to previous handler functions */
kmem_free((caddr_t)szs, sizeof (struct savedzsops));
parseprintf(DD_INSTALL, ("close_zs_linemon: CD monitor deleted\n"));
return;
}
}
static int
init_linemon(
register queue_t *q
)
{
register queue_t *dq;
dq = WR(q);
/*
* we ARE doing very bad things down here (basically stealing ISR
* hooks)
*
* so we chase down the STREAMS stack searching for the driver
* and if this is a known driver we insert our ISR routine for
* status changes in to the ExternalStatus handling hook
*/
while (dq->q_next)
{
dq = dq->q_next; /* skip down to driver */
}
/*
* find appropriate driver dependent routine
*/
if (dq->q_qinfo && dq->q_qinfo->qi_minfo)
{
register char *dname = dq->q_qinfo->qi_minfo->mi_idname;
parseprintf(DD_INSTALL, ("init_linemon: driver is \"%s\"\n", dname));
#ifdef sun
if (dname && !Strcmp(dname, "zs"))
{
return init_zs_linemon(dq, q);
}
else
#endif
{
parseprintf(DD_INSTALL, ("init_linemon: driver \"%s\" not suitable for CD monitoring\n", dname));
return 0;
}
}
parseprintf(DD_INSTALL, ("init_linemon: cannot find driver\n"));
return 0;
}
/*ARGSUSED*/
void
parse_iodone(
register parse_t *parseio
)
{
/*
* we need to clean up certain flags for the next round
*/
parseprintf(DD_PARSE, ("parse_iodone: DONE\n"));
parseio->parse_dtime.parse_state = 0; /* no problems with ISRs */
}
/*ARGSUSED*/
void
parse_ioend(
register parse_t *parseio
)
{
parseprintf(DD_PARSE, ("parse_ioend\n"));
if (parseio->parse_pdata)
free(parseio->parse_pdata);
if (parseio->parse_data)
free(parseio->parse_data);
}
/*
* move unrecognized stuff upward
*/
static int
parsersvc(
queue_t *q
)
{
mblk_t *mp;
while ((mp = getq(q)))
{
if (canput(q->q_next) || (mp->b_datap->db_type > QPCTL))
{
putnext(q, mp);
parseprintf(DD_RSVC,("parse: RSVC - putnext\n"));
}
else
{
putbq(q, mp);
parseprintf(DD_RSVC,("parse: RSVC - flow control wait\n"));
break;
}
}
return 0;
}
static void
close_linemon(
register queue_t *q,
register queue_t *my_q
)
{
/*
* find appropriate driver dependent routine
*/
if (q->q_qinfo && q->q_qinfo->qi_minfo)
{
register char *dname = q->q_qinfo->qi_minfo->mi_idname;
#ifdef sun
if (dname && !Strcmp(dname, "zs"))
{
close_zs_linemon(q, my_q);
return;
}
parseprintf(DD_INSTALL, ("close_linemon: cannot find driver close routine for \"%s\"\n", dname));
#endif
}
parseprintf(DD_INSTALL, ("close_linemon: cannot find driver name\n"));
}
/*ARGSUSED*/
int
parse_iopps(
register parse_t *parseio,
register int status,
register timestamp_t *ptime
)
{
register unsigned int updated = CVT_NONE;
/*
* PPS pulse information will only be delivered to ONE clock format
* this is either the last successful conversion module with a ppssync
* routine, or a fixed format with a ppssync routine
*/
parseprintf(DD_PARSE, ("parse_iopps: STATUS %s\n", (status == SYNC_ONE) ? "ONE" : "ZERO"));
if (clockformats[parseio->parse_lformat]->syncpps)
{
updated = (unsigned int) clockformats[parseio->parse_lformat]->syncpps(parseio, status == SYNC_ONE, ptime);
parseprintf(DD_PARSE, ("parse_iopps: updated = 0x%x\n", updated));
}
return (updated & CVT_MASK) != CVT_NONE;
}
unsigned int
parse_end(
parse_t *parseio
)
{
/*
* message complete processing
*/
parseio->parse_data[parseio->parse_index] = '\0';
memcpy(parseio->parse_ldata, parseio->parse_data, (unsigned)(parseio->parse_index+1));
parseio->parse_ldsize = parseio->parse_index;
parseio->parse_index = 0;
parseprintf(DD_PARSE, ("parse: parse_end: buffer end\n"));
return PARSE_INP_TIME;
}
unsigned long
updatetimeinfo(
register parse_t *parseio,
register unsigned long flags
)
{
parseio->parse_lstate = parseio->parse_dtime.parse_state | flags | PARSEB_TIMECODE;
parseio->parse_dtime.parse_state = parseio->parse_lstate;
parseprintf(DD_PARSE, ("updatetimeinfo status=0x%lx, time=%x\n",
(long)parseio->parse_dtime.parse_state,
parseio->parse_dtime.parse_time.fp.l_ui));
return CVT_OK; /* everything fine and dandy... */
}
/*ARGSUSED*/
bool
parse_ioinit(
register parse_t *parseio
)
{
parseprintf(DD_PARSE, ("parse_iostart\n"));
parseio->parse_plen = 0;
parseio->parse_pdata = (void *)0;
parseio->parse_data = 0;
parseio->parse_ldata = 0;
parseio->parse_dsize = 0;
parseio->parse_badformat = 0;
parseio->parse_ioflags = PARSE_IO_CS7; /* usual unix default */
parseio->parse_index = 0;
parseio->parse_ldsize = 0;
return true;
}
unsigned int
parse_addchar(
parse_t *parseio,
char ch
)
{
/*
* add to buffer
*/
if (parseio->parse_index < parseio->parse_dsize)
{
/*
* collect into buffer
*/
parseprintf(DD_PARSE, ("parse: parse_addchar: buffer[%d] = 0x%x\n", parseio->parse_index, ch));
parseio->parse_data[parseio->parse_index++] = (char)ch;
return PARSE_INP_SKIP;
}
else
/*
* buffer overflow - attempt to make the best of it
*/
return parse_restart(parseio, ch);
}
static u_long
inp_varitext(
parse_t *parseio,
unsigned int ch,
timestamp_t *tstamp
)
{
struct varitext *t = (struct varitext *)parseio->parse_pdata;
int rtc;
parseprintf(DD_PARSE, ("inp_varitext(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
if (!t)
return PARSE_INP_SKIP; /* local data not allocated - sigh! */
if (ch == 'T')
t->tstamp = *tstamp;
if ((t->previous_ch == 'T') && (ch == ':'))
{
parseprintf(DD_PARSE, ("inp_varitext: START seen\n"));
parseio->parse_data[0] = 'T';
parseio->parse_index=1;
parseio->parse_dtime.parse_stime = t->tstamp; /* Time stamp at packet start */
t->start_found = 1;
t->end_found = 0;
t->end_count = 0;
}
if (t->start_found)
{
if ((rtc = parse_addchar(parseio, ch)) != PARSE_INP_SKIP)
{
parseprintf(DD_PARSE, ("inp_varitext: ABORTED due to too many characters\n"));
memset(t, 0, sizeof(struct varitext));
return rtc;
}
if (t->end_found)
{
if (++(t->end_count) == 4) /* Finally found the end of the message */
{
parseprintf(DD_PARSE, ("inp_varitext: END seen\n"));
memset(t, 0, sizeof(struct varitext));
if ((rtc = parse_addchar(parseio, 0)) == PARSE_INP_SKIP)
return parse_end(parseio);
else
return rtc;
}
}
if ((t->previous_ch == '\r') && (ch == '\n'))
{
t->end_found = 1;
}
}
t->previous_ch = ch;
return PARSE_INP_SKIP;
}
/*
* convert incoming data
*/
static int
parserput(
queue_t *q,
mblk_t *mp
)
{
unsigned char type;
switch (type = mp->b_datap->db_type)
{
default:
/*
* anything we don't know will be put on queue
* the service routine will move it to the next one
*/
parseprintf(DD_RPUT,("parse: parserput - forward type 0x%x\n", type));
if (canput(q->q_next) || (mp->b_datap->db_type > QPCTL))
{
putnext(q, mp);
}
else
putq(q, mp);
break;
case M_BREAK:
case M_DATA:
{
register parsestream_t * parse = (parsestream_t *)(void *)q->q_ptr;
register mblk_t *nmp;
register unsigned long ch;
timestamp_t ctime;
/*
* get time on packet delivery
*/
uniqtime(&ctime.tv);
if (!(parse->parse_status & PARSE_ENABLE))
{
parseprintf(DD_RPUT,("parse: parserput - parser disabled - forward type 0x%x\n", type));
if (canput(q->q_next) || (mp->b_datap->db_type > QPCTL))
{
putnext(q, mp);
}
else
putq(q, mp);
}
else
{
parseprintf(DD_RPUT,("parse: parserput - M_%s\n", (type == M_DATA) ? "DATA" : "BREAK"));
if (type == M_DATA)
{
/*
* parse packet looking for start an end characters
*/
while (mp != (mblk_t *)NULL)
{
ch = rdchar(&mp);
if (ch != ~0 && parse_ioread(&parse->parse_io, (unsigned int)ch, &ctime))
{
/*
* up up and away (hopefully ...)
* don't press it if resources are tight or nobody wants it
*/
nmp = (mblk_t *)NULL;
if (canput(parse->parse_queue->q_next) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED)))
{
bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t));
nmp->b_wptr += sizeof(parsetime_t);
putnext(parse->parse_queue, nmp);
}
else
if (nmp) freemsg(nmp);
parse_iodone(&parse->parse_io);
}
}
}
else
{
if (parse_ioread(&parse->parse_io, (unsigned int)0, &ctime))
{
/*
* up up and away (hopefully ...)
* don't press it if resources are tight or nobody wants it
*/
nmp = (mblk_t *)NULL;
if (canput(parse->parse_queue->q_next) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED)))
{
bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t));
nmp->b_wptr += sizeof(parsetime_t);
putnext(parse->parse_queue, nmp);
}
else
if (nmp) freemsg(nmp);
parse_iodone(&parse->parse_io);
}
freemsg(mp);
}
break;
}
}
/*
* CD PPS support for non direct ISR hack
*/
case M_HANGUP:
case M_UNHANGUP:
{
register parsestream_t * parse = (parsestream_t *)(void *)q->q_ptr;
timestamp_t ctime;
register mblk_t *nmp;
register int status = cd_invert ^ (type == M_UNHANGUP);
uniqtime(&ctime.tv);
parseprintf(DD_RPUT,("parse: parserput - M_%sHANGUP\n", (type == M_HANGUP) ? "" : "UN"));
if ((parse->parse_status & PARSE_ENABLE) &&
parse_iopps(&parse->parse_io, (int)(status ? SYNC_ONE : SYNC_ZERO), &ctime))
{
nmp = (mblk_t *)NULL;
if (canput(parse->parse_queue->q_next) && (nmp = allocb(sizeof(parsetime_t), BPRI_MED)))
{
bcopy((caddr_t)&parse->parse_io.parse_dtime, (caddr_t)nmp->b_rptr, sizeof(parsetime_t));
nmp->b_wptr += sizeof(parsetime_t);
putnext(parse->parse_queue, nmp);
}
else
if (nmp) freemsg(nmp);
parse_iodone(&parse->parse_io);
freemsg(mp);
}
else
if (canput(q->q_next) || (mp->b_datap->db_type > QPCTL))
{
putnext(q, mp);
}
else
putq(q, mp);
if (status)
{
parse->parse_ppsclockev.tv = ctime.tv;
++(parse->parse_ppsclockev.serial);
}
}
}
return 0;
}
/*ARGSUSED*/
bool
parse_setfmt(
parsectl_t *dct,
parse_t *parse
)
{
if (dct->parseformat.parse_count <= PARSE_TCMAX)
{
if (dct->parseformat.parse_count)
{
register unsigned short i;
for (i = 0; i < nformats; i++)
{
if (!strcmp(dct->parseformat.parse_buffer, clockformats[i]->name))
{
if (parse->parse_pdata)
free(parse->parse_pdata);
parse->parse_pdata = 0;
parse->parse_plen = clockformats[i]->plen;
if (parse->parse_plen)
{
parse->parse_pdata = malloc(parse->parse_plen);
if (!parse->parse_pdata)
{
parseprintf(DD_PARSE, ("set format failed: malloc for private data area failed\n"));
return false;
}
memset((char *)parse->parse_pdata, 0, parse->parse_plen);
}
if (parse->parse_data)
free(parse->parse_data);
parse->parse_ldata = parse->parse_data = 0;
parse->parse_dsize = clockformats[i]->length;
if (parse->parse_dsize)
{
parse->parse_data = (char*)malloc((unsigned)(parse->parse_dsize * 2 + 2));
if (!parse->parse_data)
{
if (parse->parse_pdata)
free(parse->parse_pdata);
parse->parse_pdata = 0;
parseprintf(DD_PARSE, ("init failed: malloc for data area failed\n"));
return false;
}
}
/*
* leave room for '\0'
*/
parse->parse_ldata = parse->parse_data + parse->parse_dsize + 1;
parse->parse_lformat = i;
return true;
}
}
}
}
return false;
}
static u_long
convert_rawdcf(
unsigned char *buffer,
int size,
struct dcfparam *dcfprm,
clocktime_t *clock_time
)
{
unsigned char *s = buffer;
const unsigned char *b = dcfprm->onebits;
const unsigned char *c = dcfprm->zerobits;
int i;
parseprintf(DD_RAWDCF,("parse: convert_rawdcf: \"%s\"\n", buffer));
if (size < 57)
{
#ifndef PARSEKERNEL
msyslog(LOG_ERR, "parse: convert_rawdcf: INCOMPLETE DATA - time code only has %d bits", size);
#endif
return CVT_NONE;
}
for (i = 0; i < size; i++)
{
if ((*s != *b) && (*s != *c))
{
/*
* we only have two types of bytes (ones and zeros)
*/
#ifndef PARSEKERNEL
msyslog(LOG_ERR, "parse: convert_rawdcf: BAD DATA - no conversion");
#endif
return CVT_NONE;
}
if (*b) b++;
if (*c) c++;
s++;
}
/*
* check Start and Parity bits
*/
if ((ext_bf(buffer, DCF_S, dcfprm->zerobits) == 1) &&
pcheck(buffer, DCF_P_P1, dcfprm->zerobits) &&
pcheck(buffer, DCF_P_P2, dcfprm->zerobits) &&
pcheck(buffer, DCF_P_P3, dcfprm->zerobits))
{
/*
* buffer OK
*/
parseprintf(DD_RAWDCF,("parse: convert_rawdcf: parity check passed\n"));
clock_time->flags = PARSEB_S_ANTENNA|PARSEB_S_LEAP;
clock_time->utctime= 0;
clock_time->usecond= 0;
clock_time->second = 0;
clock_time->minute = ext_bf(buffer, DCF_M10, dcfprm->zerobits);
clock_time->minute = TIMES10(clock_time->minute) + ext_bf(buffer, DCF_M1, dcfprm->zerobits);
clock_time->hour = ext_bf(buffer, DCF_H10, dcfprm->zerobits);
clock_time->hour = TIMES10(clock_time->hour) + ext_bf(buffer, DCF_H1, dcfprm->zerobits);
clock_time->day = ext_bf(buffer, DCF_D10, dcfprm->zerobits);
clock_time->day = TIMES10(clock_time->day) + ext_bf(buffer, DCF_D1, dcfprm->zerobits);
clock_time->month = ext_bf(buffer, DCF_MO0, dcfprm->zerobits);
clock_time->month = TIMES10(clock_time->month) + ext_bf(buffer, DCF_MO, dcfprm->zerobits);
clock_time->year = ext_bf(buffer, DCF_Y10, dcfprm->zerobits);
clock_time->year = TIMES10(clock_time->year) + ext_bf(buffer, DCF_Y1, dcfprm->zerobits);
switch (ext_bf(buffer, DCF_Z, dcfprm->zerobits))
{
case DCF_Z_MET:
clock_time->utcoffset = -1*60*60;
break;
case DCF_Z_MED:
clock_time->flags |= PARSEB_DST;
clock_time->utcoffset = -2*60*60;
break;
default:
parseprintf(DD_RAWDCF,("parse: convert_rawdcf: BAD TIME ZONE\n"));
return CVT_FAIL|CVT_BADFMT;
}
if (ext_bf(buffer, DCF_A1, dcfprm->zerobits))
clock_time->flags |= PARSEB_ANNOUNCE;
if (ext_bf(buffer, DCF_A2, dcfprm->zerobits))
clock_time->flags |= PARSEB_LEAPADD; /* default: DCF77 data format deficiency */
if (ext_bf(buffer, DCF_R, dcfprm->zerobits))
clock_time->flags |= PARSEB_CALLBIT;
parseprintf(DD_RAWDCF,("parse: convert_rawdcf: TIME CODE OK: %d:%d, %d.%d.%d, flags 0x%lx\n",
(int)clock_time->hour, (int)clock_time->minute, (int)clock_time->day, (int)clock_time->month,(int) clock_time->year,
(u_long)clock_time->flags));
return CVT_OK;
}
else
{
/*
* bad format - not for us
*/
#ifndef PARSEKERNEL
msyslog(LOG_ERR, "parse: convert_rawdcf: parity check FAILED for \"%s\"", buffer);
#endif
return CVT_FAIL|CVT_BADFMT;
}
}
/*
* do ioctls and
* send stuff down - dont care about
* flow control
*/
static int
parsewput(
queue_t *q,
register mblk_t *mp
)
{
register int ok = 1;
register mblk_t *datap;
register struct iocblk *iocp;
parsestream_t *parse = (parsestream_t *)(void *)q->q_ptr;
parseprintf(DD_WPUT,("parse: parsewput\n"));
switch (mp->b_datap->db_type)
{
default:
putnext(q, mp);
break;
case M_IOCTL:
iocp = (struct iocblk *)(void *)mp->b_rptr;
switch (iocp->ioc_cmd)
{
default:
parseprintf(DD_WPUT,("parse: parsewput - forward M_IOCTL\n"));
putnext(q, mp);
break;
case CIOGETEV:
/*
* taken from Craig Leres ppsclock module (and modified)
*/
datap = allocb(sizeof(struct ppsclockev), BPRI_MED);
if (datap == NULL || mp->b_cont)
{
mp->b_datap->db_type = M_IOCNAK;
iocp->ioc_error = (datap == NULL) ? ENOMEM : EINVAL;
if (datap != NULL)
freeb(datap);
qreply(q, mp);
break;
}
mp->b_cont = datap;
*(struct ppsclockev *)(void *)datap->b_wptr = parse->parse_ppsclockev;
datap->b_wptr +=
sizeof(struct ppsclockev) / sizeof(*datap->b_wptr);
mp->b_datap->db_type = M_IOCACK;
iocp->ioc_count = sizeof(struct ppsclockev);
qreply(q, mp);
break;
case PARSEIOC_ENABLE:
case PARSEIOC_DISABLE:
{
parse->parse_status = (parse->parse_status & (unsigned)~PARSE_ENABLE) |
(iocp->ioc_cmd == PARSEIOC_ENABLE) ?
PARSE_ENABLE : 0;
if (!setup_stream(RD(q), (parse->parse_status & PARSE_ENABLE) ?
M_PARSE : M_NOPARSE))
{
mp->b_datap->db_type = M_IOCNAK;
}
else
{
mp->b_datap->db_type = M_IOCACK;
}
qreply(q, mp);
break;
}
case PARSEIOC_TIMECODE:
case PARSEIOC_SETFMT:
case PARSEIOC_GETFMT:
case PARSEIOC_SETCS:
if (iocp->ioc_count == sizeof(parsectl_t))
{
parsectl_t *dct = (parsectl_t *)(void *)mp->b_cont->b_rptr;
switch (iocp->ioc_cmd)
{
case PARSEIOC_TIMECODE:
parseprintf(DD_WPUT,("parse: parsewput - PARSEIOC_TIMECODE\n"));
ok = parse_timecode(dct, &parse->parse_io);
break;
case PARSEIOC_SETFMT:
parseprintf(DD_WPUT,("parse: parsewput - PARSEIOC_SETFMT\n"));
ok = parse_setfmt(dct, &parse->parse_io);
break;
case PARSEIOC_GETFMT:
parseprintf(DD_WPUT,("parse: parsewput - PARSEIOC_GETFMT\n"));
ok = parse_getfmt(dct, &parse->parse_io);
break;
case PARSEIOC_SETCS:
parseprintf(DD_WPUT,("parse: parsewput - PARSEIOC_SETCS\n"));
ok = parse_setcs(dct, &parse->parse_io);
break;
}
mp->b_datap->db_type = ok ? M_IOCACK : M_IOCNAK;
}
else
{
mp->b_datap->db_type = M_IOCNAK;
}
parseprintf(DD_WPUT,("parse: parsewput qreply - %s\n", (mp->b_datap->db_type == M_IOCNAK) ? "M_IOCNAK" : "M_IOCACK"));
qreply(q, mp);
break;
}
}
return 0;
}
/*
* parse_cvt_fnc_t cvt_rawdcf
* raw dcf input routine - needs to fix up 50 baud
* characters for 1/0 decision
*/
static u_long
cvt_rawdcf(
unsigned char *buffer,
int size,
struct format *param,
clocktime_t *clock_time,
void *local
)
{
last_tcode_t *t = (last_tcode_t *)local;
unsigned char *s = (unsigned char *)buffer;
unsigned char *e = s + size;
const unsigned char *b = dcfparameter.onebits;
const unsigned char *c = dcfparameter.zerobits;
u_long rtc = CVT_NONE;
unsigned int i, lowmax, highmax, cutoff, span;
#define BITS 9
unsigned char histbuf[BITS];
/*
* the input buffer contains characters with runs of consecutive
* bits set. These set bits are an indication of the DCF77 pulse
* length. We assume that we receive the pulse at 50 Baud. Thus
* a 100ms pulse would generate a 4 bit train (20ms per bit and
* start bit)
* a 200ms pulse would create all zeroes (and probably a frame error)
*/
for (i = 0; i < BITS; i++)
{
histbuf[i] = 0;
}
cutoff = 0;
lowmax = 0;
while (s < e)
{
unsigned int ch = *s ^ 0xFF;
/*
* these lines are left as an excercise to the reader 8-)
*/
if (!((ch+1) & ch) || !*s)
{
for (i = 0; ch; i++)
{
ch >>= 1;
}
*s = (unsigned char) i;
histbuf[i]++;
cutoff += i;
lowmax++;
}
else
{
parseprintf(DD_RAWDCF,("parse: cvt_rawdcf: character check for 0x%x@%d FAILED\n", *s, (int)(s - (unsigned char *)buffer)));
*s = (unsigned char)~0;
rtc = CVT_FAIL|CVT_BADFMT;
}
s++;
}
/*ARGSUSED*/
static int
parseopen(
queue_t *q,
dev_t dev,
int flag,
int sflag
)
{
register parsestream_t *parse;
static int notice = 0;
parseprintf(DD_OPEN,("parse: OPEN\n"));
if (sflag != MODOPEN)
{ /* open only for modules */
parseprintf(DD_OPEN,("parse: OPEN - FAILED - not MODOPEN\n"));
return OPENFAIL;
}
if (q->q_ptr != (caddr_t)NULL)
{
u.u_error = EBUSY;
parseprintf(DD_OPEN,("parse: OPEN - FAILED - EXCLUSIVE ONLY\n"));
return OPENFAIL;
}
#ifdef VDDRV
parsebusy++;
#endif
q->q_ptr = (caddr_t)kmem_alloc(sizeof(parsestream_t));
if (q->q_ptr == (caddr_t)0)
{
parseprintf(DD_OPEN,("parse: OPEN - FAILED - no memory\n"));
#ifdef VDDRV
parsebusy--;
#endif
return OPENFAIL;
}
WR(q)->q_ptr = q->q_ptr;
parse = (parsestream_t *)(void *)q->q_ptr;
bzero((caddr_t)parse, sizeof(*parse));
parse->parse_queue = q;
parse->parse_status = PARSE_ENABLE;
parse->parse_ppsclockev.tv.tv_sec = 0;
parse->parse_ppsclockev.tv.tv_usec = 0;
parse->parse_ppsclockev.serial = 0;
if (!parse_ioinit(&parse->parse_io))
{
/*
* ok guys - beat it
*/
kmem_free((caddr_t)parse, sizeof(parsestream_t));
#ifdef VDDRV
parsebusy--;
#endif
return OPENFAIL;
}
if (setup_stream(q, M_PARSE))
{
(void) init_linemon(q); /* hook up PPS ISR routines if possible */
parseprintf(DD_OPEN,("parse: OPEN - SUCCEEDED\n"));
/*
* I know that you know the delete key, but you didn't write this
* code, did you ? - So, keep the message in here.
*/
if (!notice)
{
#ifdef VDDRV
printf("%s: Copyright (C) 1991-2005, Frank Kardel\n", parsesync_vd.Drv_name);
#else
printf("%s: Copyright (C) 1991-2005, Frank Kardel\n", "parsestreams.c,v 4.11 2005/04/16 17:32:10 kardel RELEASE_20050508_A");
#endif
notice = 1;
}
return MODOPEN;
}
else
{
kmem_free((caddr_t)parse, sizeof(parsestream_t));
#ifdef VDDRV
parsebusy--;
#endif
return OPENFAIL;
}
}
/*
* parse_inp_fnc_t gps_input
*
* grep binary data from input stream
*/
static u_long
gps_input(
parse_t *parseio,
char ch,
timestamp_t *tstamp
)
{
CSUM calc_csum; /* used to compare the incoming csums */
GPS_MSG_HDR header;
struct msg_buf *msg_buf;
msg_buf = (struct msg_buf *)parseio->parse_pdata;
parseprintf(DD_PARSE, ("gps_input(0x%p, 0x%x, ...)\n", (void*)parseio, ch));
if (!msg_buf)
return PARSE_INP_SKIP;
if ( msg_buf->phase == MBG_NONE )
{ /* not receiving yet */
switch (ch)
{
case SOH:
parseprintf(DD_PARSE, ("gps_input: SOH seen\n"));
msg_buf->len = sizeof( header ); /* prepare to receive msg header */
msg_buf->phase = MBG_HEADER; /* receiving header */
break;
case STX:
parseprintf(DD_PARSE, ("gps_input: STX seen\n"));
msg_buf->len = 0;
msg_buf->phase = MBG_STRING; /* prepare to receive ASCII ETX delimited message */
parseio->parse_index = 1;
parseio->parse_data[0] = ch;
break;
default:
return PARSE_INP_SKIP; /* keep searching */
}
parseio->parse_dtime.parse_msglen = 1; /* reset buffer pointer */
parseio->parse_dtime.parse_msg[0] = ch; /* fill in first character */
parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
return PARSE_INP_SKIP;
}
/* SOH/STX has already been received */
/* save incoming character in both buffers if needbe */
if ((msg_buf->phase == MBG_STRING) &&
(parseio->parse_index < parseio->parse_dsize))
parseio->parse_data[parseio->parse_index++] = ch;
parseio->parse_dtime.parse_msg[parseio->parse_dtime.parse_msglen++] = ch;
if (parseio->parse_dtime.parse_msglen > sizeof(parseio->parse_dtime.parse_msg))
{
msg_buf->phase = MBG_NONE; /* buffer overflow - discard */
parseio->parse_data[parseio->parse_index] = '\0';
memcpy(parseio->parse_ldata, parseio->parse_data, (unsigned)(parseio->parse_index+1));
parseio->parse_ldsize = parseio->parse_index;
return PARSE_INP_DATA;
}
switch (msg_buf->phase)
{
case MBG_HEADER:
case MBG_DATA:
msg_buf->len--;
if ( msg_buf->len ) /* transfer not complete */
return PARSE_INP_SKIP;
parseprintf(DD_PARSE, ("gps_input: %s complete\n", (msg_buf->phase == MBG_DATA) ? "data" : "header"));
break;
case MBG_STRING:
if ((ch == ETX) || (parseio->parse_index >= parseio->parse_dsize))
{
msg_buf->phase = MBG_NONE;
parseprintf(DD_PARSE, ("gps_input: string complete\n"));
parseio->parse_data[parseio->parse_index] = '\0';
memcpy(parseio->parse_ldata, parseio->parse_data, (unsigned)(parseio->parse_index+1));
parseio->parse_ldsize = parseio->parse_index;
parseio->parse_index = 0;
return PARSE_INP_TIME;
}
else
{
return PARSE_INP_SKIP;
}
}
/* cnt == 0, so the header or the whole message is complete */
if ( msg_buf->phase == MBG_HEADER )
{ /* header complete now */
unsigned char *datap = parseio->parse_dtime.parse_msg + 1;
get_mbg_header(&datap, &header);
parseprintf(DD_PARSE, ("gps_input: header: cmd 0x%x, len %d, dcsum 0x%x, hcsum 0x%x\n",
(int)header.cmd, (int)header.len, (int)header.data_csum,
(int)header.hdr_csum));
calc_csum = mbg_csum( (unsigned char *) parseio->parse_dtime.parse_msg + 1, (unsigned short)6 );
if ( calc_csum != header.hdr_csum )
{
parseprintf(DD_PARSE, ("gps_input: header checksum mismatch expected 0x%x, got 0x%x\n",
(int)calc_csum, (int)mbg_csum( (unsigned char *) parseio->parse_dtime.parse_msg, (unsigned short)6 )));
msg_buf->phase = MBG_NONE; /* back to hunting mode */
return PARSE_INP_DATA; /* invalid header checksum received - pass up for detection */
}
if ((header.len == 0) || /* no data to wait for */
(header.len >= (sizeof (parseio->parse_dtime.parse_msg) - sizeof(header) - 1))) /* blows anything we have space for */
{
msg_buf->phase = MBG_NONE; /* back to hunting mode */
return (header.len == 0) ? PARSE_INP_DATA : PARSE_INP_SKIP; /* message complete/throwaway */
}
parseprintf(DD_PARSE, ("gps_input: expecting %d bytes of data message\n", (int)header.len));
msg_buf->len = header.len;/* save number of bytes to wait for */
msg_buf->phase = MBG_DATA; /* flag header already complete */
return PARSE_INP_SKIP;
}
parseprintf(DD_PARSE, ("gps_input: message data complete\n"));
/* Header and data have been received. The header checksum has been */
/* checked */
msg_buf->phase = MBG_NONE; /* back to hunting mode */
return PARSE_INP_DATA; /* message complete, must be evaluated */
}
/*
* take external status interrupt (only CD interests us)
*/
static int
zs_xsisr(
struct zscom *zs
)
{
register struct zsaline *za = (struct zsaline *)(void *)zs->zs_priv;
register struct zscc_device *zsaddr = zs->zs_addr;
register queue_t *q;
register unsigned char zsstatus;
register int loopcheck;
register char *dname;
#ifdef PPS_SYNC
register unsigned int s;
register long usec;
#endif
/*
* pick up current state
*/
zsstatus = zsaddr->zscc_control;
if ((za->za_rr0 ^ zsstatus) & (cdmask))
{
timestamp_t cdevent;
register int status;
za->za_rr0 = (za->za_rr0 & ~(cdmask)) | (zsstatus & (cdmask));
#ifdef PPS_SYNC
s = splclock();
#ifdef PPS_NEW
usec = timestamp.tv_usec;
#else
usec = pps_time.tv_usec;
#endif
#endif
/*
* time stamp
*/
uniqtime(&cdevent.tv);
#ifdef PPS_SYNC
(void)splx(s);
#endif
/*
* logical state
*/
status = cd_invert ? (zsstatus & cdmask) == 0 : (zsstatus & cdmask) != 0;
#ifdef PPS_SYNC
if (status)
{
usec = cdevent.tv.tv_usec - usec;
if (usec < 0)
usec += 1000000;
hardpps(&cdevent.tv, usec);
}
#endif
q = za->za_ttycommon.t_readq;
/*
* ok - now the hard part - find ourself
*/
loopcheck = MAXDEPTH;
while (q)
{
if (q->q_qinfo && q->q_qinfo->qi_minfo)
{
dname = q->q_qinfo->qi_minfo->mi_idname;
if (!Strcmp(dname, parseinfo.st_rdinit->qi_minfo->mi_idname))
{
/*
* back home - phew (hopping along stream queues might
* prove dangerous to your health)
*/
if ((((parsestream_t *)(void *)q->q_ptr)->parse_status & PARSE_ENABLE) &&
parse_iopps(&((parsestream_t *)(void *)q->q_ptr)->parse_io, (int)(status ? SYNC_ONE : SYNC_ZERO), &cdevent))
{
/*
* XXX - currently we do not pass up the message, as
* we should.
* for a correct behaviour wee need to block out
* processing until parse_iodone has been posted via
* a softcall-ed routine which does the message pass-up
* right now PPS information relies on input being
* received
*/
parse_iodone(&((parsestream_t *)(void *)q->q_ptr)->parse_io);
}
if (status)
{
((parsestream_t *)(void *)q->q_ptr)->parse_ppsclockev.tv = cdevent.tv;
++(((parsestream_t *)(void *)q->q_ptr)->parse_ppsclockev.serial);
}
parseprintf(DD_ISR, ("zs_xsisr: CD event %s has been posted for \"%s\"\n", status ? "ONE" : "ZERO", dname));
break;
}
}
q = q->q_next;
if (!loopcheck--)
{
panic("zs_xsisr: STREAMS Queue corrupted - CD event");
}
}
/*
* only pretend that CD has been handled
*/
ZSDELAY(2);
if (!((za->za_rr0 ^ zsstatus) & ~(cdmask)))
{
/*
* all done - kill status indication and return
*/
zsaddr->zscc_control = ZSWR0_RESET_STATUS; /* might kill other conditions here */
return 0;
}
}
if (zsstatus & cdmask) /* fake CARRIER status */
za->za_flags |= ZAS_CARR_ON;
else
za->za_flags &= ~ZAS_CARR_ON;
/*
* we are now gathered here to process some unusual external status
* interrupts.
* any CD events have also been handled and shouldn't be processed
* by the original routine (unless we have a VERY busy port pin)
* some initializations are done here, which could have been done before for
* both code paths but have been avoided for minimum path length to
* the uniq_time routine
*/
dname = (char *) 0;
q = za->za_ttycommon.t_readq;
loopcheck = MAXDEPTH;
/*
* the real thing for everything else ...
*/
while (q)
{
if (q->q_qinfo && q->q_qinfo->qi_minfo)
{
dname = q->q_qinfo->qi_minfo->mi_idname;
if (!Strcmp(dname, parseinfo.st_rdinit->qi_minfo->mi_idname))
{
register int (*zsisr) (struct zscom *);
/*
* back home - phew (hopping along stream queues might
* prove dangerous to your health)
*/
if ((zsisr = ((struct savedzsops *)((parsestream_t *)(void *)q->q_ptr)->parse_data)->oldzsops->zsop_xsint))
return zsisr(zs);
else
panic("zs_xsisr: unable to locate original ISR");
parseprintf(DD_ISR, ("zs_xsisr: non CD event was processed for \"%s\"\n", dname));
/*
* now back to our program ...
*/
return 0;
}
}
q = q->q_next;
if (!loopcheck--)
{
panic("zs_xsisr: STREAMS Queue corrupted - non CD event");
}
}
/*
* last resort - shouldn't even come here as it indicates
* corrupted TTY structures
*/
printf("zs_zsisr: looking for \"%s\" - found \"%s\" - taking EMERGENCY path\n", parseinfo.st_rdinit->qi_minfo->mi_idname, dname ? dname : "-NIL-");
if (emergencyzs && emergencyzs->zsop_xsint)
emergencyzs->zsop_xsint(zs);
else
panic("zs_xsisr: no emergency ISR handler");
return 0;
}
static int
init_zs_linemon(
register queue_t *q,
register queue_t *my_q
)
{
register struct zscom *zs;
register struct savedzsops *szs;
register parsestream_t *parsestream = (parsestream_t *)(void *)my_q->q_ptr;
/*
* we expect the zsaline pointer in the q_data pointer
* from there on we insert our on EXTERNAL/STATUS ISR routine
* into the interrupt path, before the standard handler
*/
zs = ((struct zsaline *)(void *)q->q_ptr)->za_common;
if (!zs)
{
/*
* well - not found on startup - just say no (shouldn't happen though)
*/
return 0;
}
else
{
unsigned long s;
/*
* we do a direct replacement, in case others fiddle also
* if somebody else grabs our hook and we disconnect
* we are in DEEP trouble - panic is likely to be next, sorry
*/
szs = (struct savedzsops *)(void *)kmem_alloc(sizeof(struct savedzsops));
if (szs == (struct savedzsops *)0)
{
parseprintf(DD_INSTALL, ("init_zs_linemon: CD monitor NOT installed - no memory\n"));
return 0;
}
else
{
parsestream->parse_data = (void *)szs;
s = splhigh();
parsestream->parse_dqueue = q; /* remember driver */
szs->zsops = *zs->zs_ops;
szs->zsops.zsop_xsint = zs_xsisr; /* place our bastard */
szs->oldzsops = zs->zs_ops;
emergencyzs = zs->zs_ops;
zsopinit(zs, &szs->zsops); /* hook it up */
(void) splx(s);
parseprintf(DD_INSTALL, ("init_zs_linemon: CD monitor installed\n"));
return 1;
}
}
}
