First cut at merging Wolfgang's RTCM code.

Something about normal GNU compiler options hoses this.

1 files changed, 137 insertions, 0 deletions

diff --git a/rtcm.h b/rtcm.h
new file mode 100644
index 00000000..f36922ad
--- /dev/null
+++ b/rtcm.h
@@ -0,0 +1,137 @@
+/******************************************************************************
+*									      *
+*	File:     rtcm.h						      *
+*	Author:   Wolfgang Rupprecht <wolfgang@capsicum.wsrcc.com>	      *
+*	Created:  Sun Jan 24 16:47:57 PST 1999				      *
+*	Contents: rtcm sc104 message format				      *
+*									      *
+*	Copyright (c) 1999 Wolfgang Rupprecht.				      *
+*	All rights reserved.						      *
+*									      *
+*	$Id: rtcmmsg.h,v 1.1 2000/02/28 08:08:32 wolfgang Exp $
+******************************************************************************/
+
+/*
+ * The rtcm words are 30-bit words.  We will lay them into memory into
+ * 30-bit (low-end justified) chunks.  To write them out we will write
+ * 5 magnavox-format bytes where the low 6-bits of the byte are 6-bits
+ * of the 30-word msg.
+ */
+
+
+typedef unsigned int RTCMWORD;
+
+#define MAG_SHIFT 6
+#define MAG_TAG_DATA (1 << MAG_SHIFT)
+#define MAG_TAG_MASK (3 << MAG_SHIFT)
+
+#define PREAMBLE_PATTERN 0x66
+#define PREAMBLE_SHIFT 22
+#define PREAMBLE_MASK (0xFF << PREAMBLE_SHIFT)
+
+#define	ZCOUNT_SCALE	0.6	/* sec */
+#define	PCSMALL		0.02	/* metres */
+#define	PCLARGE		0.32	/* metres */
+#define	RRSMALL		0.002	/* metres/sec */
+#define	RRLARGE		0.032	/* metres/sec */
+
+#define XYZ_SCALE	0.01	/* metres */
+#define DXYZ_SCALE	0.1	/* metres */
+#define	LA_SCALE	90.0/32767.0	/* degrees */
+#define	LO_SCALE	180.0/32767.0	/* degrees */
+#define	FREQ_SCALE	0.1	/* kHz */
+#define	FREQ_OFFSET	190.0	/* kHz */
+#define CNR_OFFSET	24	/* dB */
+#define TU_SCALE	5	/* minutes */
+
+struct msghw1 {			/* header word 1 */
+    uint            parity:6;
+    uint            refstaid:10;
+    uint            msgtype:6;
+    uint            preamble:8;	/* 01100110 */
+    uint            _pad:2;
+};
+
+struct msghw2 {			/* header word 2 */
+    uint            parity:6;
+    uint            stathlth:3;
+    uint            frmlen:5;
+    uint            sqnum:3;
+    uint            zcnt:13;
+    uint            _pad:2;
+};
+
+struct msg1w3 {			/* msg 1 word 3 */
+    uint            parity:6;
+    int             pc1:16;
+    uint            satident1:5;
+    uint            udre1:2;
+    uint            scale1:1;
+    uint            _pad:2;
+};
+
+struct msg1w4 {			/* msg 1 word 4 */
+    uint            parity:6;
+    uint            satident2:5;
+    uint            udre2:2;
+    uint            scale2:1;
+    uint            issuedata1:8;
+    int             rangerate1:8;
+    uint            _pad:2;
+};
+
+struct msg1w5 {			/* msg 1 word 5 */
+    uint            parity:6;
+    int             rangerate2:8;
+    int             pc2:16;
+    uint            _pad:2;
+};
+
+
+struct msg1w6 {			/* msg 1 word 6 */
+    uint            parity:6;
+    int             pc3_h:8;
+    uint            satident3:5;
+    uint            udre3:2;
+    uint            scale3:1;
+    uint            issuedata2:8;
+    uint            _pad:2;
+};
+
+struct msg1w7 {			/* msg 1 word 7 */
+    uint            parity:6;
+    uint            issuedata3:8;
+    int             rangerate3:8;
+    uint            pc3_l:8;	/* NOTE: uint for low byte */
+    uint            _pad:2;
+};
+
+struct msghdr {
+    struct msghw1   w1;
+    struct msghw2   w2;
+};
+
+struct msg1 {
+    struct msghw1   w1;
+    struct msghw2   w2;
+
+    struct msg1w3   w3;		/* clump #1 of 5-corrections each */
+    struct msg1w4   w4;
+    struct msg1w5   w5;
+    struct msg1w6   w6;
+    struct msg1w7   w7;
+
+    struct msg1w3   w8;		/* clump #2 of 5-corrections each */
+    struct msg1w4   w9;
+    struct msg1w5   w10;
+    struct msg1w6   w11;
+    struct msg1w7   w12;
+
+    struct msg1w3   w13;	/* clump #2 of 5-corrections each */
+    struct msg1w4   w14;
+    struct msg1w5   w15;
+    struct msg1w6   w16;
+    struct msg1w7   w17;
+};
+
+/* end */