#Applies against: 2.6.17
#Signed-off-by: Uwe Bugla <uwe.bugla@xxxxxx>
#Changes: fix type and / or tab errors, extracts documentary parts out of the module and transforms them into a documentary text file
--- a/drivers/media/dvb/frontends/lgdt330x.c 2006-05-27 14:03:00
+++ b/drivers/media/dvb/frontends/lgdt330x.c 2006-05-28 13:08:00
@@ -16,34 +16,16 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
*/
-/*
- * NOTES ABOUT THIS DRIVER
- *
- * This Linux driver supports:
- * DViCO FusionHDTV 3 Gold-Q
- * DViCO FusionHDTV 3 Gold-T
- * DViCO FusionHDTV 5 Gold
- * DViCO FusionHDTV 5 Lite
- * DViCO FusionHDTV 5 USB Gold
- * Air2PC/AirStar 2 ATSC 3rd generation (HD5000)
- *
- * TODO:
- * signal strength always returns 0.
- *
- */
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
-
#include "dvb_frontend.h"
#include "lgdt330x_priv.h"
#include "lgdt330x.h"
@@ -551,37 +533,6 @@
static int lgdt3302_read_snr(struct dvb_frontend* fe, u16* snr)
{
#ifdef SNR_IN_DB
- /*
- * Spec sheet shows formula for SNR_EQ = 10 log10(25 * 24**2 / noise)
- * and SNR_PH = 10 log10(25 * 32**2 / noise) for equalizer and phase tracker
- * respectively. The following tables are built on these formulas.
- * The usual definition is SNR = 20 log10(signal/noise)
- * If the specification is wrong the value retuned is 1/2 the actual SNR in db.
- *
- * This table is a an ordered list of noise values computed by the
- * formula from the spec sheet such that the index into the table
- * starting at 43 or 45 is the SNR value in db. There are duplicate noise
- * value entries at the beginning because the SNR varies more than
- * 1 db for a change of 1 digit in noise at very small values of noise.
- *
- * Examples from SNR_EQ table:
- * noise SNR
- * 0 43
- * 1 42
- * 2 39
- * 3 37
- * 4 36
- * 5 35
- * 6 34
- * 7 33
- * 8 33
- * 9 32
- * 10 32
- * 11 31
- * 12 31
- * 13 30
- */
-
static const u32 SNR_EQ[] =
{ 1, 2, 2, 2, 3, 3, 4, 4, 5, 7,
9, 11, 13, 17, 21, 26, 33, 41, 52, 65,
@@ -743,8 +694,7 @@
state->frontend.ops = &state->ops;
state->frontend.demodulator_priv = state;
return &state->frontend;
-
-error:
+ error:
kfree(state);
dprintk("%s: ERROR\n",__FUNCTION__);
return NULL;
@@ -799,11 +749,4 @@
MODULE_DESCRIPTION("LGDT330X (ATSC 8VSB & ITU-T J.83 AnnexB 64/256 QAM) Demodulator Driver");
MODULE_AUTHOR("Wilson Michaels");
MODULE_LICENSE("GPL");
-
EXPORT_SYMBOL(lgdt330x_attach);
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
--- a/dev/null 2006-05-27 14:03:00
+++ b/Documentation/dvb/lgdt330x.txt 2006-05-28 13:27:00
@@ -0,0 +1,39 @@
+Driver for LGDT3302 and LGDT3303 - VSB/QAM, supporting the following cards:
+
+DViCO FusionHDTV 3 Gold-Q
+DViCO FusionHDTV 3 Gold-T
+DViCO FusionHDTV 5 Gold
+DViCO FusionHDTV 5 Lite
+DViCO FusionHDTV 5 USB Gold
+Air2PC/AirStar 2 ATSC 3rd generation (HD5000)
+
+TODO:
+signal strength always returns 0.
+
+Spec sheet shows formula for SNR_EQ = 10 log10(25 * 24**2 / noise)
+and SNR_PH = 10 log10(25 * 32**2 / noise) for equalizer and phase tracker
+respectively. The following tables are built on these formulas.
+The usual definition is SNR = 20 log10(signal/noise)
+If the specification is wrong the value retuned is 1/2 the actual SNR in db.
+This table is a an ordered list of noise values computed by the
+formula from the spec sheet such that the index into the table
+starting at 43 or 45 is the SNR value in db. There are duplicate noise
+value entries at the beginning because the SNR varies more than
+1 db for a change of 1 digit in noise at very small values of noise.
+
+Examples from SNR_EQ table:
+noise SNR
+0 43
+1 42
+2 39
+3 37
+4 36
+5 35
+6 34
+7 33
+8 33
+9 32
+10 32
+11 31
+12 31
+13 30
--
Echte DSL-Flatrate dauerhaft für 0,- Euro*!
"Feel free" mit GMX DSL! http://www.gmx.net/de/go/dsl
_______________________________________________
linux-dvb@xxxxxxxxxxx
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
