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#include <stdint.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/fsm.h>
#include <osmo-bts/bts.h>
#include <osmo-bts/gsm_data.h>
#include <osmo-bts/phy_link.h>
#include <osmo-bts/oml.h>
#include <osmo-bts/logging.h>
#include <osmo-bts/bts_model.h>
#include <osmo-bts/nm_common_fsm.h>
static LLIST_HEAD(g_phy_links);
struct phy_link *phy_link_by_num(int num)
{
struct phy_link *plink;
llist_for_each_entry(plink, &g_phy_links, list) {
if (plink->num == num)
return plink;
}
return NULL;
}
struct phy_link *phy_link_create(void *ctx, int num)
{
struct phy_link *plink;
if (phy_link_by_num(num))
return NULL;
plink = talloc_zero(ctx, struct phy_link);
plink->num = num;
plink->state = PHY_LINK_SHUTDOWN;
INIT_LLIST_HEAD(&plink->instances);
llist_add_tail(&plink->list, &g_phy_links);
bts_model_phy_link_set_defaults(plink);
return plink;
}
const struct value_string phy_link_state_vals[] = {
{ PHY_LINK_SHUTDOWN, "shutdown" },
{ PHY_LINK_CONNECTING, "connecting" },
{ PHY_LINK_CONNECTED, "connected" },
{ 0, NULL }
};
void phy_link_state_set(struct phy_link *plink, enum phy_link_state state)
{
struct phy_instance *pinst;
LOGPPHL(plink, DL1C, LOGL_INFO, "PHY link state change %s -> %s\n",
get_value_string(phy_link_state_vals, plink->state),
get_value_string(phy_link_state_vals, state));
plink->state = state;
/* notify all TRX associated with this phy */
llist_for_each_entry(pinst, &plink->instances, list) {
struct gsm_bts_trx *trx = pinst->trx;
if (!trx)
continue;
osmo_fsm_inst_dispatch(trx->mo.fi,
state == PHY_LINK_CONNECTED ? NM_EV_PHYLINK_UP :
NM_EV_PHYLINK_DOWN,
NULL);
osmo_fsm_inst_dispatch(trx->bb_transc.mo.fi,
state == PHY_LINK_CONNECTED ? NM_EV_PHYLINK_UP :
NM_EV_PHYLINK_DOWN,
NULL);
}
}
enum phy_link_state phy_link_state_get(struct phy_link *plink)
{
return plink->state;
}
const char *phy_link_state_name(enum phy_link_state state)
{
return get_value_string(phy_link_state_vals, state);
}
struct phy_instance *phy_instance_by_num(const struct phy_link *plink, int num)
{
struct phy_instance *pinst;
llist_for_each_entry(pinst, &plink->instances, list) {
if (pinst->num == num)
return pinst;
}
return NULL;
}
struct phy_instance *phy_instance_create(struct phy_link *plink, int num)
{
struct phy_instance *pinst;
if (phy_instance_by_num(plink, num))
return NULL;
pinst = talloc_zero(plink, struct phy_instance);
pinst->num = num;
pinst->phy_link = plink;
llist_add_tail(&pinst->list, &plink->instances);
bts_model_phy_instance_set_defaults(pinst);
return pinst;
}
void phy_instance_link_to_trx(struct phy_instance *pinst, struct gsm_bts_trx *trx)
{
/* There might already be an associated TRX */
OSMO_ASSERT(pinst->trx == NULL)
trx->pinst = pinst;
pinst->trx = trx;
}
void phy_instance_destroy(struct phy_instance *pinst)
{
/* remove from list of instances in the link */
llist_del(&pinst->list);
/* remove reverse link from TRX (if associated) */
if (pinst->trx != NULL) {
OSMO_ASSERT(pinst->trx->pinst == pinst);
pinst->trx->pinst = NULL;
pinst->trx = NULL;
}
talloc_free(pinst);
}
void phy_link_destroy(struct phy_link *plink)
{
struct phy_instance *pinst, *pinst2;
llist_for_each_entry_safe(pinst, pinst2, &plink->instances, list)
phy_instance_destroy(pinst);
talloc_free(plink);
}
static char name_buf[32];
const char *phy_link_name(const struct phy_link *plink)
{
snprintf(name_buf, sizeof(name_buf), "phy%u", plink->num);
return name_buf;
}
int phy_links_open(void)
{
const struct phy_instance *pinst;
struct phy_link *plink;
llist_for_each_entry(plink, &g_phy_links, list) {
int rc;
/* Warn about dangling PHY instances */
llist_for_each_entry(pinst, &plink->instances, list) {
if (pinst->trx != NULL)
continue;
LOGPPHI(pinst, DL1C, LOGL_NOTICE, "This PHY instance is not associated "
"with a TRX instance, check the configuration file!\n");
}
rc = bts_model_phy_link_open(plink);
if (rc < 0)
return rc;
}
return 0;
}
const char *phy_instance_name(const struct phy_instance *pinst)
{
snprintf(name_buf, sizeof(name_buf), "phy%u.%u", pinst->phy_link->num,
pinst->num);
return name_buf;
}
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