diff options
| author | piotr <Piotr Krysik pkrysik@elka.pw.edu.pl> | 2014-07-20 23:48:32 +0200 |
|---|---|---|
| committer | piotr <Piotr Krysik pkrysik@elka.pw.edu.pl> | 2014-07-20 23:48:32 +0200 |
| commit | faacc72413cb64544b8e46beded071ff91826d82 (patch) | |
| tree | a364be32dfff1433d9d1b7a9ec3480bb54fb0a2a /lib/receiver | |
| parent | 9d5d86362eed527236366023ab0fa4e1b03ac6e7 (diff) | |
Added typical signalization channels (CCCH, BCCH, SDCCH) decoder and demapper for BCCH.
The implementation is quite dirty at this moment.
Diffstat (limited to 'lib/receiver')
| -rw-r--r-- | lib/receiver/gsmtap.h | 72 | ||||
| -rw-r--r-- | lib/receiver/receiver_impl.h | 2 |
2 files changed, 1 insertions, 73 deletions
diff --git a/lib/receiver/gsmtap.h b/lib/receiver/gsmtap.h deleted file mode 100644 index bf8226b..0000000 --- a/lib/receiver/gsmtap.h +++ /dev/null @@ -1,72 +0,0 @@ -#ifndef _GSMTAP_H -#define _GSMTAP_H - -/* gsmtap header, pseudo-header in front of the actua GSM payload */ - -/* GSMTAP is a generic header format for GSM protocol captures, - * it uses the IANA-assigned UDP port number 4729 and carries - * payload in various formats of GSM interfaces such as Um MAC - * blocks or Um bursts. - * - * Example programs generating GSMTAP data are airprobe - * (http://airprobe.org/) or OsmocomBB (http://bb.osmocom.org/) - */ - -#include <stdint.h> - -#define GSMTAP_VERSION 0x02 - -#define GSMTAP_TYPE_UM 0x01 /* A Layer 2 MAC block (23 bytes) */ -#define GSMTAP_TYPE_ABIS 0x02 -#define GSMTAP_TYPE_UM_BURST 0x03 /* raw burst bits */ - -#define GSMTAP_BURST_UNKNOWN 0x00 -#define GSMTAP_BURST_FCCH 0x01 -#define GSMTAP_BURST_PARTIAL_SCH 0x02 -#define GSMTAP_BURST_SCH 0x03 -#define GSMTAP_BURST_CTS_SCH 0x04 -#define GSMTAP_BURST_COMPACT_SCH 0x05 -#define GSMTAP_BURST_NORMAL 0x06 -#define GSMTAP_BURST_DUMMY 0x07 -#define GSMTAP_BURST_ACCESS 0x08 -#define GSMTAP_BURST_NONE 0x09 - -#define GSMTAP_CHANNEL_UNKNOWN 0x00 -#define GSMTAP_CHANNEL_BCCH 0x01 -#define GSMTAP_CHANNEL_CCCH 0x02 -#define GSMTAP_CHANNEL_RACH 0x03 -#define GSMTAP_CHANNEL_AGCH 0x04 -#define GSMTAP_CHANNEL_PCH 0x05 -#define GSMTAP_CHANNEL_SDCCH 0x06 -#define GSMTAP_CHANNEL_SDCCH4 0x07 -#define GSMTAP_CHANNEL_SDCCH8 0x08 -#define GSMTAP_CHANNEL_TCH_F 0x09 -#define GSMTAP_CHANNEL_TCH_H 0x0a -#define GSMTAP_CHANNEL_ACCH 0x80 - -#define GSMTAP_ARFCN_F_PCS 0x8000 -#define GSMTAP_ARFCN_F_UPLINK 0x4000 -#define GSMTAP_ARFCN_MASK 0x3fff - -#define GSMTAP_UDP_PORT 4729 /* officially registered with IANA */ - -struct gsmtap_hdr { - uint8_t version; /* version, set to GSMTAP_VERSION */ - uint8_t hdr_len; /* length in number of 32bit words */ - uint8_t type; /* see GSMTAP_TYPE_* */ - uint8_t timeslot; /* timeslot (0..7 on Um) */ - - uint16_t arfcn; /* ARFCN (frequency) */ - int8_t signal_dbm; /* signal level in dBm */ - int8_t snr_db; /* signal/noise ratio in dB */ - - uint32_t frame_number; /* GSM Frame Number (FN) */ - - uint8_t sub_type; /* Type of burst/channel, see above */ - uint8_t antenna_nr; /* Antenna Number */ - uint8_t sub_slot; /* sub-slot within timeslot */ - uint8_t res; /* reserved for future use (RFU) */ - -} __attribute__((packed)); - -#endif /* _GSMTAP_H */ diff --git a/lib/receiver/receiver_impl.h b/lib/receiver/receiver_impl.h index 42e6d01..200a951 100644 --- a/lib/receiver/receiver_impl.h +++ b/lib/receiver/receiver_impl.h @@ -22,9 +22,9 @@ #define INCLUDED_GSM_RECEIVER_IMPL_H #include <gsm/receiver.h> +#include <gsm/gsmtap.h> #include <gsm_constants.h> #include <receiver_config.h> -#include <gsmtap.h> namespace gr { namespace gsm { |