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add v.23 modem definitions.

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git-svn-id: http://svn.openzap.org/svn/openzap/trunk@213 a93c3328-9c30-0410-af19-c9cd2b2d52af
This commit is contained in:
Michael Jerris 2007-06-05 03:56:59 +00:00
parent 5e983dcf1f
commit 204d5e452d
2 changed files with 22 additions and 0 deletions
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8
libs/openzap/src/dsp/fsk.c
View File

@ -55,6 +55,14 @@
#define V23_SPACE 2100 #define V23_SPACE 2100
#define V23_BAUD 1200 #define V23_BAUD 1200
static fsk_modem_definition_t fsk_modem_definitions[] =
{
{ /* FSK_V23_FORWARD_MODE1 */ 1700, 1300, 600 },
{ /* FSK_V23_FORWARD_MODE2 */ 2100, 1300, 1200 },
{ /* FSK_V23_BACKWARD */ 450, 390, 75 },
{ /* FSK_BELL202 */ 2200, 1200, 1200 },
};
/* /*
* dsp_fsk_attr_init * dsp_fsk_attr_init
* *

14
libs/openzap/src/dsp/fsk.h
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@ -35,6 +35,20 @@
#define __FSK_H__ #define __FSK_H__
#include "uart.h" #include "uart.h"
typedef struct {
int freq_space; /* Frequency of the 0 bit */
int freq_mark; /* Frequency of the 1 bit */
int baud_rate; /* baud rate for the modem */
} fsk_modem_definition_t;
/* Must be kept in sync with fsk_modem_definitions array in fsk.c */
typedef enum {
FSK_V23_FORWARD_MODE1 = 0, /* Maximum 600 bps for long haul */
FSK_V23_FORWARD_MODE2, /* Standard 1200 bps V.23 */
FSK_V23_BACKWARD, /* 75 bps return path for V.23 */
FSK_BELL202 /* Bell 202 half-duplex 1200 bps */
} fsk_modem_types_t;
typedef enum { typedef enum {
FSK_STATE_CHANSEIZE = 0, FSK_STATE_CHANSEIZE = 0,
FSK_STATE_CARRIERSIG, FSK_STATE_CARRIERSIG,