char * s_video_helper_irman_getcode (void)
{
int ret;
unsigned char *code;
char *code_text;
code = ir_poll_code();
if (code == NULL) {
return NULL;
}
code_text = ir_code_to_text(code);
ret = ir_valid_code(code_text);
if (ret == 0) {
return NULL;
}
ir_clear_buffer();
return code_text;
}
/* A modified port initialization - seems to work everytime */
void irapp_init_port(gchar * ir_port)
{
gint i;
for (i = 0; i < 2; i++)
{
if (ir_open_port(ir_port) < 0)
fprintf(stderr, _("unable to open port `%s' (%s)\n"), ir_port, strerror(errno));
else
{
ir_write_char('I');
ir_usleep(IR_HANDSHAKE_GAP);
ir_write_char('R');
ir_set_enabled(1);
ir_clear_buffer(); /* Take the 'OK' */
}
}
}
static int ir_init (char *filename)
{
int rdchar;
if (ir_enabled) {
errno = EBUSY; /* we already have a high level ir setup */
return -1;
}
if (ir_open_port(filename) < 0) {
return -1;
}
ir_clear_buffer();
if (ir_write_char('I') < 0) {
return -1;
}
ir_usleep(IR_HANDSHAKE_GAP);
if (ir_write_char('R') < 0) {
return -1;
}
/* we'll be nice and give the box a good chance to send an 'O' */
while ((rdchar = ir_read_char(IR_HANDSHAKE_TIMEOUT)) != 'O') {
if (rdchar < 0) { /* error or timeout */
return -1;
}
}
/* as regards the 'K', however, that really must be the next character */
rdchar = ir_read_char(IR_HANDSHAKE_TIMEOUT);
if (rdchar < 0) {
return -1;
}
/* ENOEXEC is the closest error I could find, that would also not be
* generated by ir_read_char(). Anyway, ENOEXEC does more or less mean
* "I don't understand this data I've been given"
*/
if (rdchar != 'K') {
errno = ENOEXEC;
return -1;
}
/* we are now ready to roll */
ir_enabled = 1;
return 0;
}
