int
_init(void)
{
int retval;
extern int install_callbacks(void);
extern void remove_callbacks(void);
if (install_callbacks() != 0)
return (ENXIO);
if (boothowto & RB_HALT)
debug_enter("obpsym: halt flag (-h) is set.\n");
retval = mod_install(&modlinkage);
/*
* if load fails remove callback and unlock symbols
*/
if (retval) {
printf("obpsym: Error %d installing OBP syms module\n", retval);
remove_callbacks();
}
else
(void) callb_add(reset_callbacks, 0, CB_CL_CPR_OBP, "obpsym");
return (retval);
}
static void f_got_data( INT32 args )
{
struct pf_source *s =
((struct callback_prog *)Pike_fp->current_object->storage)->s;
remove_callbacks( (struct source *)s );
if( s->str ||
TYPEOF(Pike_sp[-1]) != PIKE_T_STRING ||
Pike_sp[-1].u.string->size_shift ||
Pike_sp[-1].u.string->len == 0)
{
s->s.eof = 1;
pop_n_elems(args);
push_int(0);
return;
}
s->str = Pike_sp[-1].u.string;
Pike_sp--;
pop_n_elems(args-1);
push_int(0);
if( s->when_data_cb )
s->when_data_cb( s->when_data_cb_arg );
}
void remove_edge_detect(unsigned int gpio)
{
struct epoll_event ev;
struct gpios *g = get_gpio(gpio);
if (g == NULL)
return;
// delete epoll of fd
ev.events = EPOLLIN | EPOLLET | EPOLLPRI;
ev.data.fd = g->value_fd;
epoll_ctl(epfd_thread, EPOLL_CTL_DEL, g->value_fd, &ev);
// delete callbacks for gpio
remove_callbacks(gpio);
// btc fixme - check return result??
gpio_set_edge(gpio, NO_EDGE);
g->edge = NO_EDGE;
if (g->value_fd != -1)
close(g->value_fd);
// btc fixme - check return result??
gpio_unexport(gpio);
event_occurred[gpio] = 0;
delete_gpio(gpio);
}
int
_fini(void)
{
int retval;
extern void remove_callbacks(void);
if (obpheld != 0)
return (EBUSY);
retval = mod_remove(&modlinkage);
/*
* if unload succeeds remove callback and unlock symbols
*/
if (retval == 0) {
remove_callbacks();
}
return (retval);
}
void remove_edge_detect(unsigned int gpio)
{
struct epoll_event ev;
int fd = fd_lookup(gpio);
// delete callbacks for gpio
remove_callbacks(gpio);
// delete epoll of fd
epoll_ctl(epfd, EPOLL_CTL_DEL, fd, &ev);
// set edge to none
gpio_set_edge(gpio, NO_EDGE);
// unexport gpio
gpio_event_remove(gpio);
// clear detected flag
event_occurred[gpio] = 0;
}
static void free_source( struct source *src )
{
remove_callbacks( src );
free_object(((struct pf_source *)src)->cb_obj);
free_object(((struct pf_source *)src)->obj);
}
