jolly has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-e1d/+/35561?usp=email )
Change subject: Indicate change in received Sa bits ......................................................................
Indicate change in received Sa bits
Change-Id: I4ea2a11e221629a90ed227a0df33576c8607881b --- M src/e1d.h M src/intf_line.c M src/mux_demux.c 3 files changed, 24 insertions(+), 1 deletion(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-e1d refs/changes/61/35561/1
diff --git a/src/e1d.h b/src/e1d.h index ec264c7..74010ba 100644 --- a/src/e1d.h +++ b/src/e1d.h @@ -148,6 +148,8 @@ uint8_t prev_errmask; /*! timer to re-set the rx_crc4_err and rx_alarm above */ struct osmo_timer_list timer; + /*! last received frame with Sa bits */ + uint8_t rx_frame; } ts0;
/* watchdog timer to catch situations where no more USB data is received */ diff --git a/src/intf_line.c b/src/intf_line.c index 4433e96..b3dafff 100644 --- a/src/intf_line.c +++ b/src/intf_line.c @@ -272,6 +272,7 @@ line->intf = intf; line->drv_data = drv_data; line->mode = E1_LINE_MODE_CHANNELIZED; + line->ts0.rx_frame = 0xff;
for (int i = 0; i < 32; i++) _ts_init(&line->ts[i], line, i); diff --git a/src/mux_demux.c b/src/mux_demux.c index abe01a3..71374ef 100644 --- a/src/mux_demux.c +++ b/src/mux_demux.c @@ -378,8 +378,8 @@ const uint8_t *frame = buf + i*32; uint8_t frame_nr = (frame_base + i) & 0xf;
- /* A bit is present in each odd frame */ if (frame_nr % 2) { + /* A bit is present in each odd frame */ if (frame[0] & 0x20) { if (!(line->ts0.cur_errmask & E1L_TS0_RX_ALARM)) { line->ts0.cur_errmask |= E1L_TS0_RX_ALARM; @@ -394,6 +394,17 @@ line->intf->id, line->id, 0, NULL, 0); } } + /* SA bits changed */ + if (line->ts0.rx_frame != (frame[0] | 0xe0)) { + uint8_t sa_bits = ((frame[0] & 0x01) << 7) | /* Sa8 -> Bit 7 */ + ((frame[0] & 0x02) << 5) | /* Sa7 -> Bit 6 */ + ((frame[0] & 0x04) >> 2) | /* Sa6 -> Bit 0 */ + ((frame[0] & 0x08) << 2) | /* Sa5 -> Bit 5 */ + (frame[0] & 0x10); /* Sa4 -> Bit 4 */ + line->ts0.rx_frame = frame[0] | 0xe0; + osmo_e1dp_server_event(line->intf->e1d->srv, E1DP_EVT_SABITS, + line->intf->id, line->id, 0, &sa_bits, 1); + } }
/* E bits are present in frame 13 + 15 */
-
jolly