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dddvb/lib/ddzap.c

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#include "../include/linux/dvb/frontend.h"
#include "src/libdddvb.h"
#include <stdio.h>
#include <string.h>
#include <getopt.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdint.h>
#include <math.h>
#include <time.h>
#include <inttypes.h>
char line_start[16] = "";
char line_end[16] = "\r";
uint32_t cc_errors = 0;
uint32_t packets = 0;
uint32_t payload_packets = 0;
uint32_t packet_errors = 0;
uint8_t cc[8192] = { 0 };
enum { IQ_RED=1, IQ_GREE, IQ_BLUE , IQ_EVIL, IQ_LOG_RED, IQ_LOG_GREEN, IQ_LOG_BLUE , IQ_LOG_EVIL , IQ_TEST, };
typedef struct pamdata_
{
unsigned char *data_points;
uint64_t *data;
int col;
} pamdata;
int init_pamdata(pamdata *iq,int color)
{
iq->col = 0;
if (!( iq->data=(uint64_t *) malloc(sizeof(uint64_t) *256*256)))
{
fprintf(stderr,"not enough memory\n");
return -1;
}
memset(iq->data,0,256*256*sizeof(uint64_t));
if (!( iq->data_points=(unsigned char *) malloc(sizeof(unsigned char) *
256*256*3)))
{
fprintf(stderr,"not enough memory\n");
return -1;
}
memset(iq->data_points,0,256*256*3*sizeof(char));
iq->col = color;
return 0;
}
static long getutime(){
struct timespec t0;
clock_gettime(CLOCK_MONOTONIC_RAW,&t0);
return t0.tv_sec * (int)1e9 + t0.tv_nsec;
}
void pam_coordinate_axes(pamdata *iq, unsigned char r,
unsigned char g, unsigned char b){
int i;
for (i = 0; i < 256*3; i+=3){
// coordinate axes
int xr = i + 256*128*3;
int yr =128*3 + i*256;
iq->data_points[xr] = r;
iq->data_points[yr] = r;
iq->data_points[xr+1] = g;
iq->data_points[yr+1] = g;
iq->data_points[xr+2] = b;
iq->data_points[yr+2] = b;
}
}
void pam_data_convert(pamdata *iq ,uint64_t maxd)
{
int i;
uint64_t m = 255*maxd;
double lm = log((double)m);
memset(iq->data_points,0,256*256*3*sizeof(char));
for (i = 0; i < 256*256*3; i+=3){
// IQ data plot
int r = i;
int g = i+1;
int b = i+2;
uint64_t odata = iq->data[i/3];
uint64_t data = 255*iq->data[i/3];
double lod = log((double)odata);
double q = lod/lm;
if (data){
switch (iq->col){
case IQ_LOG_EVIL:
if ( q < 0.25){
iq->data_points[b] = (int)(1024.0*q);
} else {
if (q >0.5) iq->data_points[g] = (int)(255.0*q);
else
iq->data_points[r] = (int)(512.0*q);
}
break;
case IQ_LOG_RED:
iq->data_points[r] = (int)(255.0*q)&0xff;
break;
case IQ_LOG_GREEN:
iq->data_points[g] = (int)(255.0*q)&0xff;
break;
case IQ_LOG_BLUE:
iq->data_points[b] = (int)(255.0*q)&0xff;
break;
case IQ_EVIL:
if (data < m/4){
iq->data_points[b] = ((4*data)/maxd)&0xff;
} else {
if (data >m/2) iq->data_points[g] = (data/maxd)&0xff;
else iq->data_points[r] = (2*data/maxd)&0xff;
}
break;
case IQ_TEST:
if (data < m/4){
iq->data_points[b] = ((4*data)/maxd)&0xff;
iq->data_points[g] = ((4*data)/maxd)&0xff;
} else {
if (data >m/2) {
iq->data_points[g] = (data/maxd)&0xff;
} else {
iq->data_points[g] = (2*data/maxd)&0xff;
iq->data_points[r] = (2*data/maxd)&0xff;
}
}
break;
case IQ_RED:
iq->data_points[r] = (data/maxd)&0xff;
break;
case IQ_BLUE:
iq->data_points[b] = (data/maxd)&0xff;
break;
default:
case IQ_GREE:
iq->data_points[g] = (data/maxd)&0xff;
break;
}
}
}
}
#define TS_SIZE 188
#define BSIZE 100*TS_SIZE
#define DTIME 40000000ULL
void pam_read_data (int fdin, pamdata *iq)
{
int8_t buf[BSIZE];
int i,j;
long t0;
long t1;
uint64_t maxd = 0;
t0 = getutime();
t1 = t0;
while ((t1 - t0) < DTIME){
int re =0;
if ((re=read(fdin,(char *)buf, BSIZE)) < 0){
return;
}
for (i=0; i < re; i+=TS_SIZE){
for (j=4; j<TS_SIZE; j+=2){
uint8_t ix = buf[i+j]+128;
uint8_t qy = 128-buf[i+j+1];
iq->data[ix|(qy<<8)] += 1;
uint64_t c = iq->data[ix|(qy<<8)];
if ( c > maxd) maxd = c;
}
}
t1 = getutime();
}
pam_data_convert(iq, maxd);
pam_coordinate_axes(iq, 255,255 ,0);
memset(iq->data,0,256*256*sizeof(uint64_t));
}
void pam_write (int fd, pamdata *iq){
char *HEAD="P7\nWIDTH 256\nHEIGHT 256\nDEPTH 3\nMAXVAL 255\nTUPLTYPE RGB\nENDHDR\n";
int headlen = strlen(HEAD);
int we=0;
we=write(fd,HEAD,headlen);
we=write(fd,iq->data_points,256*256*3);
memset(iq->data_points,0,256*256*3*sizeof(char));
}
void proc_ts(int i, uint8_t *buf)
{
uint16_t pid=0x1fff&((buf[1]<<8)|buf[2]);
uint8_t ccin = buf[3] & 0x1F;
if (buf[0] == 0x47 && (buf[1] & 0x80) == 0) {
if( pid != 8191 ) {
if (ccin & 0x10) {
if ( cc[pid]) {
// TODO: 1 repetition allowed
if ((((cc[pid] + 1) & 0x0F) != (ccin & 0x0F)))
cc_errors += 1;
}
cc[pid] = ccin;
}
payload_packets += 1;
}
} else
packet_errors += 1;
if( (packets & 0x3FFF ) == 0)
{
printf("%s Packets: %12u non null %12u, errors: %12u, CC errors: %12u%s", line_start, packets, payload_packets, packet_errors, cc_errors, line_end);
fflush(stdout);
}
packets += 1;
}
#define TSBUFSIZE (100*188)
void tscheck(int ts)
{
uint8_t *buf;
uint8_t id;
int i, nts;
int len;
buf=(uint8_t *)malloc(TSBUFSIZE);
while(1) {
len=read(ts, buf, TSBUFSIZE);
if (len<0) {
continue;
}
if (buf[0]!=0x47) {
read(ts, buf, 1);
continue;
}
if (len%188) { /* should not happen */
printf("blah\n");
continue;
}
nts=len/188;
for (i=0; i<nts; i++)
proc_ts(i, buf+i*188);
}
}
static uint32_t root2gold(uint32_t root)
{
uint32_t x, g;
for (g = 0, x = 1; g < 0x3ffff; g++) {
if (root == x)
return g;
x = (((x ^ (x >> 7)) & 1) << 17) | (x >> 1);
}
return 0xffffffff;
}
int main(int argc, char **argv)
{
struct dddvb *dd;
struct dddvb_fe *fe;
struct dddvb_params p;
uint32_t bandwidth = DDDVB_UNDEF, frequency = 0, symbol_rate = 0, pol = DDDVB_UNDEF;
uint32_t id = DDDVB_UNDEF, ssi = DDDVB_UNDEF, num = DDDVB_UNDEF, source = DDDVB_UNDEF;
uint32_t mtype= DDDVB_UNDEF;
uint32_t verbosity = 0;
uint32_t get_ts = 1;
enum fe_code_rate fec = FEC_AUTO;
enum fe_delivery_system delsys = ~0;
char *config = "config/";
int fd = 0;
int odvr = 0;
FILE *fout = stdout;
int line = -1;
int color = 0;
pamdata iq;
while (1) {
int cur_optind = optind ? optind : 1;
int option_index = 0;
int c;
static struct option long_options[] = {
{"config", required_argument, 0, 'c'},
{"frequency", required_argument, 0, 'f'},
{"bandwidth", required_argument, 0, 'b'},
{"symbolrate", required_argument, 0, 's'},
{"source", required_argument, 0, 'l'},
{"delsys", required_argument, 0, 'd'},
{"id", required_argument, 0, 'i'},
{"ssi", required_argument, 0, 'g'},
{"gold", required_argument, 0, 'g'},
{"root", required_argument, 0, 'r'},
{"num", required_argument, 0, 'n'},
{"mtype", required_argument, 0, 'm'},
{"verbosity", required_argument, 0, 'v'},
{"open_dvr", no_argument, 0, 'o'},
{"tscheck", no_argument, 0, 't'},
{"tscheck_l", required_argument, 0, 'a'},
{"nodvr", no_argument , 0, 'q'},
{"pam", no_argument , 0, 'P'},
{"pam_color", no_argument , 0, 'e'},
{"help", no_argument , 0, 'h'},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv,
"e:c:i:f:s:d:p:hg:r:n:b:l:v:m:ota:qP",
long_options, &option_index);
if (c==-1)
break;
switch (c) {
case 'e':
color = strtoul(optarg, NULL, 0);
case 'P':
odvr = 2;
break;
case 'o':
fout = stderr;
if (odvr) {
fprintf(fout,"Can't pipe dvr device when checking continuity\n");
break;
}
fprintf(fout,"Reading from dvr\n");
odvr = 1;
break;
case 'a':
line = strtoul(optarg, NULL, 0);
case 't':
fout = stderr;
if (odvr) {
fprintf(fout,"Can't check continuity when piping dvr device\n");
break;
}
fprintf(fout,"performing continuity check\n");
odvr = 3;
break;
case 'c':
config = strdup(optarg);
break;
case 'f':
frequency = strtoul(optarg, NULL, 0);
break;
case 'b':
bandwidth = strtoul(optarg, NULL, 0);
break;
case 's':
symbol_rate = strtoul(optarg, NULL, 0);
break;
case 'l':
source = strtoul(optarg, NULL, 0);
break;
case 'v':
verbosity = strtoul(optarg, NULL, 0);
break;
case 'g':
ssi = strtoul(optarg, NULL, 0);
break;
case 'r':
ssi = root2gold(strtoul(optarg, NULL, 0));
break;
case 'i':
id = strtoul(optarg, NULL, 0);
break;
case 'n':
num = strtoul(optarg, NULL, 0);
break;
case 'm':
if (!strcmp(optarg, "16APSK"))
mtype = APSK_16;
if (!strcmp(optarg, "32APSK"))
mtype = APSK_32;
if (!strcmp(optarg, "64APSK"))
mtype = APSK_64;
if (!strcmp(optarg, "128APSK"))
mtype = APSK_128;
if (!strcmp(optarg, "256APSK"))
mtype = APSK_256;
if (mtype == DDDVB_UNDEF)
printf("unknown mtype %s\n", optarg);
break;
case 'd':
if (!strcmp(optarg, "C2"))
delsys = SYS_DVBC2;
if (!strcmp(optarg, "DVBC2"))
delsys = SYS_DVBC2;
if (!strcmp(optarg, "C"))
delsys = SYS_DVBC_ANNEX_A;
if (!strcmp(optarg, "DVBC"))
delsys = SYS_DVBC_ANNEX_A;
if (!strcmp(optarg, "S"))
delsys = SYS_DVBS;
if (!strcmp(optarg, "DVBS"))
delsys = SYS_DVBS;
if (!strcmp(optarg, "S2"))
delsys = SYS_DVBS2;
if (!strcmp(optarg, "DVBS2"))
delsys = SYS_DVBS2;
if (!strcmp(optarg, "T"))
delsys = SYS_DVBT;
if (!strcmp(optarg, "DVBT"))
delsys = SYS_DVBT;
if (!strcmp(optarg, "T2"))
delsys = SYS_DVBT2;
if (!strcmp(optarg, "DVBT2"))
delsys = SYS_DVBT2;
if (!strcmp(optarg, "J83B"))
delsys = SYS_DVBC_ANNEX_B;
if (!strcmp(optarg, "ISDBC"))
delsys = SYS_ISDBC;
if (!strcmp(optarg, "ISDBT"))
delsys = SYS_ISDBT;
if (!strcmp(optarg, "ISDBS"))
delsys = SYS_ISDBS;
break;
case 'p':
if (!strcmp(optarg, "h") || !strcmp(optarg, "H"))
pol = 1;
if (!strcmp(optarg, "v") || !strcmp(optarg, "V"))
pol = 0;
break;
case 'q':
get_ts = 0;
break;
case 'h':
fprintf(fout,"ddzap [-d delivery_system] [-p polarity] [-c config_dir]\n"
" [-f frequency(Hz for terr./kHz for SAT)]\n"
" [-m 16APSK/32APSK/64APSK/128APSK/256APSK]\n"
" (only needed for higher modulations than 8PSK) on some cards\n"
" [-b bandwidth(Hz)] [-s symbol_rate(Hz)]\n"
" [-g gold_code] [-r root_code] [-i id] [-n device_num]\n"
" [-o (write dvr to stdout)]\n"
" [-l (tuner source for unicable)]\n"
" [-t (continuity check)]\n"
" [-a [display line] (display continuity check in line)]\n"
" [-P (output IQ diagram as pam)]\n"
" [-e [color] (use color for pam 0=green)]\n"
"\n"
" delivery_system = C,S,S2,T,T2,J83B,ISDBC,ISDBT\n"
" polarity = h/H,v/V\n"
"\n");
exit(-1);
default:
break;
}
}
if (optind < argc) {
fprintf(fout,"Warning: unused arguments\n");
}
if (delsys == ~0) {
fprintf(fout,"You have to choose a delivery system: -d (C|S|S2|T|T2)\n");
exit(-1);
}
switch (delsys) {
case SYS_DVBC_ANNEX_A:
if (!symbol_rate)
symbol_rate = 6900000;
break;
}
dd = dddvb_init(config, verbosity);
if (!dd) {
fprintf(fout,"dddvb_init failed\n");
exit(-1);
}
fprintf(fout,"dvbnum = %u\n", dd->dvbfe_num);
dddvb_get_ts(dd, get_ts);
if (num != DDDVB_UNDEF)
fe = dddvb_fe_alloc_num(dd, delsys, num);
else
fe = dddvb_fe_alloc(dd, delsys);
if (!fe) {
fprintf(fout,"dddvb_fe_alloc failed\n");
exit(-1);
}
dddvb_param_init(&p);
dddvb_set_mtype(&p, mtype);
dddvb_set_frequency(&p, frequency);
dddvb_set_src(&p, source);
dddvb_set_bandwidth(&p, bandwidth);
dddvb_set_symbol_rate(&p, symbol_rate);
dddvb_set_polarization(&p, pol);
dddvb_set_delsys(&p, delsys);
dddvb_set_id(&p, id);
dddvb_set_ssi(&p, ssi);
dddvb_dvb_tune(fe, &p);
#if 0
{
uint8_t ts[188];
dddvb_ca_write(dd, 0, ts, 188);
}
#endif
if (!odvr){
while (1) {
fe_status_t stat;
int64_t str, cnr;
stat = dddvb_get_stat(fe);
str = dddvb_get_strength(fe);
cnr = dddvb_get_cnr(fe);
printf("stat=%02x, str=%" PRId64 ".%03u dBm, "
"snr=%" PRId64 ".%03u dB\n",
stat, str/1000, abs(str%1000),
cnr/1000, abs(cnr%1000));
sleep(1);
}
} else {
#define BUFFSIZE (1024*188)
fe_status_t stat;
char filename[150];
uint8_t buf[BUFFSIZE];
stat = 0;
stat = dddvb_get_stat(fe);
while (!(stat == 0x1f)) {
int64_t str, cnr;
stat = dddvb_get_stat(fe);
str = dddvb_get_strength(fe);
cnr = dddvb_get_cnr(fe);
fprintf(stderr,"stat=%02x, str=%lld.%03llddB, snr=%lld.%03llddB \n",
stat, (long long int) str/1000, (long long int) abs(str%1000),
(long long int) cnr/1000, (long long int)abs(cnr%1000));
sleep(1);
}
fprintf(stderr,"got lock on %s\n", fe->name);
snprintf(filename,25,
"/dev/dvb/adapter%d/dvr%d",fe->anum, fe->fnum);
fprintf(stderr,"opening %s\n", filename);
if ((fd = open(filename ,O_RDONLY)) < 0){
fprintf(stderr,"Error opening input file:%s\n",filename);
}
switch (odvr){
case 1:
while(1){
read(fd,buf,BUFFSIZE);
write(fileno(stdout),buf,BUFFSIZE);
}
break;
case 2:
fprintf(stderr,"writing pamdata\n");
init_pamdata(&iq,color);
while(1){
pam_read_data(fd, &iq);
pam_write(STDOUT_FILENO, &iq);
}
break;
case 3:
if( line >= 0 && line < 64 ){
snprintf(line_start,sizeof(line_start)-1,"\0337\033[%d;0H",line);
strncpy(line_end,"\0338",sizeof(line_end)-1);
}
tscheck(fd);
break;
}
}
}
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