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authorKinsey Moore <kmoore@digium.com>2012-03-22 19:51:16 +0000
committerKinsey Moore <kmoore@digium.com>2012-03-22 19:51:16 +0000
commitc5b3db1956a3db2446b0310b3a7d59961fe3e089 (patch)
tree530b55034f5adfb0c7106ae1194679a031afc888 /main/fskmodem_int.c
parent1d1c28ac4b09df2b663123e55239e411b8f5ad26 (diff)
Kill off red blobs in most of main/*
Everything still compiled after making these changes, so I assume these whitespace-only changes didn't break anything (and shouldn't have). git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@360190 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'main/fskmodem_int.c')
-rw-r--r--main/fskmodem_int.c104
1 files changed, 52 insertions, 52 deletions
diff --git a/main/fskmodem_int.c b/main/fskmodem_int.c
index 8f84f5800..1d46a3a22 100644
--- a/main/fskmodem_int.c
+++ b/main/fskmodem_int.c
@@ -4,7 +4,7 @@
* Copyright (C) 1999 - 2005, Digium, Inc.
*
* Mark Spencer <markster@digium.com>
- *
+ *
* Includes code and algorithms from the Zapata library.
*
* See http://www.asterisk.org for more information about
@@ -20,7 +20,7 @@
/*! \file
*
- * \brief FSK Modulator/Demodulator
+ * \brief FSK Modulator/Demodulator
*
* \author Mark Spencer <markster@digium.com>
*
@@ -55,11 +55,11 @@ static inline int iget_sample(short **buffer, int *len)
#define IGET_SAMPLE iget_sample(&buffer, len)
/*! \brief Coefficients for input filters
- * Coefficients table, generated by program "mkfilter"
+ * Coefficients table, generated by program "mkfilter"
* mkfilter is part of the zapatatelephony.org distribution
* Format: coef[IDX_FREC][IDX_BW][IDX_COEF]
- * IDX_COEF = 0 => 1/GAIN
- * IDX_COEF = 1-6 => Coefficientes y[n]
+ * IDX_COEF = 0 => 1/GAIN
+ * IDX_COEF = 1-6 => Coefficientes y[n]
*/
static double coef_in[NF][NBW][8]={
{ { 1.8229206611e-04,-7.8997325866e-01,2.2401819940e+00,-4.6751353581e+00,5.5080745712e+00,-5.0571565772e+00,2.6215820004e+00,0.0000000000e+00,
@@ -74,19 +74,19 @@ static double coef_in[NF][NBW][8]={
}, { 9.8534230718e-02,-5.6297236492e-02,3.8148618075e-01,-1.0848760410e+00,1.8441165168e+00,-2.4860666655e+00,2.3103384142e+00,0.0000000000e+00,
}, }, { { 1.8229206610e-04,-7.8997325866e-01,-3.8715051001e-01,-2.6192408538e+00,-8.3977994034e-01,-2.8329897913e+00,-4.5306444352e-01,0.0000000000e+00,
}, { 9.8531160936e-02,-5.6297236492e-02,-5.7284484199e-02,-4.3673866734e-01,-1.9564766257e-01,-6.2028156584e-01,-3.4692356122e-01,0.0000000000e+00,
- }, },
+ }, },
};
/*! \brief Coefficients for output filter
* Coefficients table, generated by program "mkfilter"
- * Format: coef[IDX_BW][IDX_COEF]
- * IDX_COEF = 0 => 1/GAIN
+ * Format: coef[IDX_BW][IDX_COEF]
+ * IDX_COEF = 0 => 1/GAIN
* IDX_COEF = 1-6 => Coefficientes y[n]
*/
static double coef_out[NBW][8]={
{ 1.3868644653e-08,-6.3283665042e-01,4.0895057217e+00,-1.1020074592e+01,1.5850766191e+01,-1.2835109292e+01,5.5477477340e+00,0.0000000000e+00,
- }, { 3.1262119724e-03,-7.8390522307e-03,8.5209627801e-02,-4.0804129163e-01,1.1157139955e+00,-1.8767603680e+00,1.8916395224e+00,0.0000000000e+00
- },
+ }, { 3.1262119724e-03,-7.8390522307e-03,8.5209627801e-02,-4.0804129163e-01,1.1157139955e+00,-1.8767603680e+00,1.8916395224e+00,0.0000000000e+00
+ },
};
/*! Integer Pass Band demodulator filter */
@@ -95,19 +95,19 @@ static inline int ibpdfilter(struct filter_struct * fs, int in)
int i,j;
int s;
int64_t s_interim;
-
+
/* integer filter */
s = in * fs->icoefs[0];
fs->ixv[(fs->ip + 6) & 7] = s;
-
+
s = (fs->ixv[fs->ip] + fs->ixv[(fs->ip + 6) & 7]) +
6 * (fs->ixv[(fs->ip + 1) & 7] + fs->ixv[(fs->ip + 5) & 7]) +
15 * (fs->ixv[(fs->ip + 2) & 7] + fs->ixv[(fs->ip + 4) & 7]) +
20 * fs->ixv[(fs->ip + 3) & 7];
-
+
for (i = 1, j = fs->ip; i < 7; i++, j++) {
/* Promote operation to 64 bit to prevent overflow that occurred in 32 bit) */
- s_interim = (int64_t)(fs->iyv[j & 7]) *
+ s_interim = (int64_t)(fs->iyv[j & 7]) *
(int64_t)(fs->icoefs[i]) /
(int64_t)(1024);
s += (int) s_interim;
@@ -124,17 +124,17 @@ static inline int ibpfilter(struct filter_struct * fs, int in)
int i, j;
int s;
int64_t s_interim;
-
+
/* integer filter */
s = in * fs->icoefs[0] / 256;
fs->ixv[(fs->ip + 6) & 7] = s;
-
+
s = (fs->ixv[(fs->ip + 6) & 7] - fs->ixv[fs->ip])
+ 3 * (fs->ixv[(fs->ip + 2) & 7] - fs->ixv[(fs->ip + 4) & 7]);
-
- for (i = 1, j = fs->ip; i < 7; i++, j++) {
- s_interim = (int64_t)(fs->iyv[j & 7]) *
- (int64_t)(fs->icoefs[i]) /
+
+ for (i = 1, j = fs->ip; i < 7; i++, j++) {
+ s_interim = (int64_t)(fs->iyv[j & 7]) *
+ (int64_t)(fs->icoefs[i]) /
(int64_t)(256);
s += (int) s_interim;
}
@@ -148,14 +148,14 @@ static inline int idemodulator(fsk_data *fskd, int *retval, int x)
{
int is, im, id;
int ilin2;
-
+
is = ibpfilter(&fskd->space_filter, x);
im = ibpfilter(&fskd->mark_filter, x);
-
+
ilin2 = ((im * im) - (is * is)) / (256 * 256);
-
+
id = ibpdfilter(&fskd->demod_filter, ilin2);
-
+
*retval = id;
return 0;
}
@@ -172,7 +172,7 @@ static int get_bit_raw(fsk_data *fskd, short *buffer, int *len)
if ((ix * fskd->xi0) < 0) { /* Transicion */
if (!f) {
if (fskd->icont < (fskd->pllispb2)) {
- fskd->icont += fskd->pllids;
+ fskd->icont += fskd->pllids;
} else {
fskd->icont -= fskd->pllids;
}
@@ -199,17 +199,17 @@ int fskmodem_init(fsk_data *fskd)
fskd->demod_filter.ip = 0;
for ( i = 0 ; i < 7 ; i++ ) {
- fskd->space_filter.icoefs[i] =
+ fskd->space_filter.icoefs[i] =
coef_in[fskd->f_space_idx][fskd->bw][i] * 256;
fskd->space_filter.ixv[i] = 0;;
fskd->space_filter.iyv[i] = 0;;
- fskd->mark_filter.icoefs[i] =
+ fskd->mark_filter.icoefs[i] =
coef_in[fskd->f_mark_idx][fskd->bw][i] * 256;
fskd->mark_filter.ixv[i] = 0;;
fskd->mark_filter.iyv[i] = 0;;
- fskd->demod_filter.icoefs[i] =
+ fskd->demod_filter.icoefs[i] =
coef_out[fskd->bw][i] * 1024;
fskd->demod_filter.ixv[i] = 0;;
fskd->demod_filter.iyv[i] = 0;;
@@ -225,7 +225,7 @@ int fsk_serial(fsk_data *fskd, short *buffer, int *len, int *outbyte)
int olen;
int beginlen = *len;
int beginlenx;
-
+
switch (fskd->state) {
/* Pick up where we left off */
case STATE_SEARCH_STARTBIT2:
@@ -242,10 +242,10 @@ int fsk_serial(fsk_data *fskd, short *buffer, int *len, int *outbyte)
just start sending a start bit with nothing preceding it at the beginning
of a transmission (what a LOSING design), we cant do it this elegantly */
/* NOT USED
- if (demodulator(zap,&x1))
+ if (demodulator(zap,&x1))
return -1;
for(;;) {
- if (demodulator(zap,&x2))
+ if (demodulator(zap,&x2))
return -1;
if (x1>0 && x2<0) break;
x1=x2;
@@ -260,22 +260,22 @@ int fsk_serial(fsk_data *fskd, short *buffer, int *len, int *outbyte)
return -1;
samples++;
for(;;) {
-search_startbit2:
+search_startbit2:
if (*len <= 0) {
fskd->state = STATE_SEARCH_STARTBIT2;
return 0;
}
samples++;
- if (idemodulator(fskd, &fskd->xi2, IGET_SAMPLE))
+ if (idemodulator(fskd, &fskd->xi2, IGET_SAMPLE))
return -1;
#if 0
printf("xi2 = %d ", fskd->xi2);
-#endif
+#endif
if (fskd->xi2 < 512) {
break;
}
}
-search_startbit3:
+search_startbit3:
/* We await for 0.5 bits before using DPLL */
i = fskd->ispb / 2;
if (*len < i) {
@@ -284,11 +284,11 @@ search_startbit3:
}
for (; i > 0; i--) {
if (idemodulator(fskd, &fskd->xi1, IGET_SAMPLE))
- return(-1);
+ return(-1);
#if 0
printf("xi1 = %d ", fskd->xi1);
#endif
- samples++;
+ samples++;
}
/* x1 must be negative (start bit confirmation) */
@@ -314,11 +314,11 @@ getbyte:
olen = *len;
i = get_bit_raw(fskd, buffer, len);
buffer += (olen - *len);
- if (i == -1)
+ if (i == -1)
return -1;
- if (i)
+ if (i)
n1++;
- a >>= 1;
+ a >>= 1;
a |= i;
}
j = 8 - fskd->nbit;
@@ -327,36 +327,36 @@ getbyte:
/* We read parity bit (if exists) and check parity */
if (fskd->parity) {
olen = *len;
- i = get_bit_raw(fskd, buffer, len);
+ i = get_bit_raw(fskd, buffer, len);
buffer += (olen - *len);
- if (i == -1)
+ if (i == -1)
return -1;
- if (i)
+ if (i)
n1++;
if (fskd->parity == 1) { /* parity=1 (even) */
- if (n1 & 1)
+ if (n1 & 1)
a |= 0x100; /* error */
} else { /* parity=2 (odd) */
- if (!(n1 & 1))
+ if (!(n1 & 1))
a |= 0x100; /* error */
}
}
-
+
/* We read STOP bits. All of them must be 1 */
-
+
for (j = fskd->instop; j; j--) {
r = get_bit_raw(fskd, buffer, len);
- if (r == -1)
+ if (r == -1)
return -1;
- if (!r)
+ if (!r)
a |= 0x200;
}
- /* And finally we return
- * Bit 8 : Parity error
+ /* And finally we return
+ * Bit 8 : Parity error
* Bit 9 : Framming error
*/
-
+
*outbyte = a;
fskd->state = STATE_SEARCH_STARTBIT;
return 1;