[Redbutton-devel] SF.net SVN: redbutton: [340] redbutton-download/trunk/channels.c

[<ski...@us...>]

Revision: 340
          http://redbutton.svn.sourceforge.net/redbutton/?rev=340&view=rev
Author:   skilvington
Date:     2007-08-23 06:10:24 -0700 (Thu, 23 Aug 2007)

Log Message:
-----------
patch from Mario Rossi to stop rb-download trying to tune unless it really needs to

Modified Paths:
--------------
    redbutton-download/trunk/channels.c

Modified: redbutton-download/trunk/channels.c
===================================================================
--- redbutton-download/trunk/channels.c	2007-08-23 12:53:39 UTC (rev 339)
+++ redbutton-download/trunk/channels.c	2007-08-23 13:10:24 UTC (rev 340)
@@ -39,6 +39,7 @@
 #define SLOF (11700*1000UL)
 #define LOF1 (9750*1000UL)
 #define LOF2 (10600*1000UL)
+#define ONE_kHz 1000UL
 
 /* internal functions */
 static bool get_tune_params(fe_type_t, uint16_t, struct dvb_frontend_parameters *, char *, unsigned int *);
@@ -575,8 +576,10 @@
 
 	/* are we already tuned to the right frequency */
 	vverbose("Current frequency %u; needed %u; first_time=%d", current_params.frequency, needed_params.frequency, first_time);
+
+	/* frequency resolution is up to 1 kHz */
 	if(first_time
-	|| current_params.frequency != needed_params.frequency)
+	|| abs(current_params.frequency - needed_params.frequency) >= ONE_kHz)
 	{
 		first_time = false;
 		verbose("Retuning to frequency %u", needed_params.frequency);


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