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Add support for sending and receiving Sa bits, as well as some line signals 

The Sa bits are required for osmo-v5. V5.2 interface must alter and
detect Sa7 bit on time slot 0. 'Fastlink' multiplexers do not allow to
disable link check with Sa7, so that it must be supported by osmo-v5.

Requires: osmo-e1d Change-Id I2608af7bbb8092fddd68d4f3bb36b10a1100ce0f
Change-Id: Ie7643693c2daac99f5747591decd60e982b8052a
This commit is contained in:
Andreas Eversberg 2024-01-14 15:13:14 +01:00
parent c4ea374e4a
commit 9410cc5b8c
1 changed files with 73 additions and 0 deletions
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73
src/input/e1d.c
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@ -30,6 +30,7 @@
#include <osmocom/core/bits.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/fsm.h>
#include <osmocom/core/signal.h>
#include <osmocom/vty/vty.h>
@ -75,6 +76,66 @@ static const struct value_string fsm_e1d_client_evt_names[] = {
{ 0, NULL }
};
struct e1inp_line *e1inp_port_find(uint8_t port_nr)
{
struct e1inp_line *e1i_line;
/* iterate over global list of e1 lines */
llist_for_each_entry(e1i_line, &e1inp_line_list, list) {
if (e1i_line->port_nr == port_nr)
return e1i_line;
}
return NULL;
}
static void e1d_client_event_cb(enum osmo_e1dp_msg_type event, uint8_t intf, uint8_t line, uint8_t ts, uint8_t *data, int len)
{
struct e1inp_line *e1_line;
struct input_signal_data isd;
int signal;
memset(&isd, 0, sizeof(isd));
/* we use higher 4 bits for interface, lower 4 bits for line,
* resulting in max. 16 interfaces with 16 lines each */
e1_line = e1inp_port_find((intf << 4) | line);
if (!e1_line)
return;
isd.line = e1_line;
switch (event) {
case E1DP_EVT_LOS_ON:
signal = S_L_INP_LINE_LOS;
break;
case E1DP_EVT_LOS_OFF:
signal = S_L_INP_LINE_NOLOS;
break;
case E1DP_EVT_AIS_ON:
signal = S_L_INP_LINE_AIS;
break;
case E1DP_EVT_AIS_OFF:
signal = S_L_INP_LINE_NOAIS;
break;
case E1DP_EVT_RAI_ON:
signal = S_L_INP_LINE_RAI;
break;
case E1DP_EVT_RAI_OFF:
signal = S_L_INP_LINE_NORAI;
break;
case E1DP_EVT_SABITS:
signal = S_L_INP_LINE_SA_BITS;
if (len < 1)
return;
isd.sa_bits = *data;
break;
default:
/* Ignore all other events. */
return;
}
osmo_signal_dispatch(SS_L_INPUT, signal, &isd);
}
static int fsm_e1_client_timer_cb(struct osmo_fsm_inst *fi)
{
osmo_fsm_inst_dispatch(g_e1d_fsm_inst, EV_CONNECT, NULL);
@ -92,6 +153,7 @@ static void fsm_e1d_client_disconnected_cb(struct osmo_fsm_inst *fi, uint32_t ev
osmo_fsm_inst_state_chg(g_e1d_fsm_inst, ST_DISCONNECTED, 1, 0);
return;
}
osmo_e1dp_client_event_register(g_e1d, e1d_client_event_cb);
}
LOGPFSML(fi, LOGL_NOTICE, "Successfully (re)connected to osmo-e1d daemon!\n");
@ -766,9 +828,20 @@ static int e1d_line_create(struct e1inp_line *line)
return 0;
}
static int set_sa_bits(struct e1inp_line *line, uint8_t sa_bits)
{
/* we use higher 4 bits for interface, lower 4 bits for line,
* resulting in max. 16 interfaces with 16 lines each */
uint8_t e1d_intf = (line->port_nr >> 4) & 0xF;
uint8_t e1d_line = line->port_nr & 0xF;
return osmo_e1dp_client_set_sa_bits(g_e1d, e1d_intf, e1d_line, sa_bits);
}
struct e1inp_driver e1d_driver = {
.name = "e1d",
.want_write = e1d_want_write,
.set_sa_bits = set_sa_bits,
.line_update = e1d_line_update,
.line_create = e1d_line_create,
};