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#include <osmocom/core/talloc.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/netif/channel.h>
static LLIST_HEAD(channel_list);
extern struct osmo_chan_type chan_abis_ipa_srv;
extern struct osmo_chan_type chan_abis_ipa_cli;
static void *osmo_chan_ctx;
void osmo_chan_init(void *ctx)
{
osmo_chan_ctx = ctx;
llist_add(&chan_abis_ipa_srv.head, &channel_list);
llist_add(&chan_abis_ipa_cli.head, &channel_list);
/* add your new channel type here */
}
struct osmo_chan *osmo_chan_create(int type_id, int subtype_id)
{
struct osmo_chan_type *cur = NULL;
int found = 0, found_partial = 0;
struct osmo_chan *c;
if (type_id > OSMO_CHAN_MAX) {
LOGP(DLINP, LOGL_ERROR, "unsupported channel type "
"number `%u'\n", type_id);
return NULL;
}
if (subtype_id > OSMO_SUBCHAN_MAX) {
LOGP(DLINP, LOGL_ERROR, "unsupported subchannel type "
"number `%u'\n", type_id);
return NULL;
}
llist_for_each_entry(cur, &channel_list, head) {
if (type_id == cur->type && subtype_id == cur->subtype) {
found = 1;
break;
} else if (type_id == cur->type) {
found_partial = 1;
break;
}
}
if (!found) {
LOGP(DLINP, LOGL_ERROR, "unsupported channel type `%s'\n",
cur->name);
return NULL;
}
if (found_partial) {
LOGP(DLINP, LOGL_ERROR, "Sorry, channel type `%s' does not "
"support subtype `%u'\n", cur->name, subtype_id);
return NULL;
}
c = talloc_zero_size(osmo_chan_ctx,
sizeof(struct osmo_chan) + cur->datasiz);
if (c == NULL) {
LOGP(DLINP, LOGL_ERROR, "cannot allocate channel data\n");
return NULL;
}
c->ops = cur;
if (c->ops->create(c) < 0) {
LOGP(DLINP, LOGL_ERROR, "cannot create channel\n");
talloc_free(c);
return NULL;
}
return c;
}
void osmo_chan_destroy(struct osmo_chan *c)
{
c->ops->destroy(c);
talloc_free(c);
}
int osmo_chan_open(struct osmo_chan *c)
{
return c->ops->open(c);
}
void osmo_chan_close(struct osmo_chan *c)
{
c->ops->close(c);
}
int osmo_chan_enqueue(struct osmo_chan *c, struct msgb *msg)
{
return c->ops->enqueue(c, msg);
}
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