view src/cs/layer1/include/tch_tap_proto.h @ 300:edcb8364d45b

L1: resurrect TCH tap feature In this new incarnation of our TCH tap feature, we support DL sniffing in all 3 of FR1, HR1 and EFR, and the new implementation will capture every 20 ms frame where the old one silently skipped a frame (sent nothing) during FACCH stealing. The wire interface on RVTMUX changed slightly, and fc-shell tch record will need to be updated to support the new version. TCH UL play or substitution is supported for FR1 and EFR only; support for HR1 can be added later if needed.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 13 Dec 2022 02:44:01 +0000
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/*
 * This header file is a FreeCalypso addition; it contains definitions
 * for our RVTMUX-based protocol for TCH tapping.
 */

#define	TCH_CONFIG_REQ		0x11
#define	TCH_CONFIG_CONF		0x12
#define	TCH_ULBITS_REQ		0x13
#define	TCH_ULBITS_CONF		0x14
#define	TCH_DLBITS_OLD_IND	0x15	/* FR&EFR only, no distinction, no fn */
#define	TCH_DLBITS_NEW_IND	0x16	/* with channel mode and fn added */