static int FXO_card_init(xbus_t *xbus, xpd_t *xpd)
{
struct FXO_priv_data *priv;
int i;
BUG_ON(!xpd);
priv = xpd->priv;
// Hanghup all lines
for_each_line(xpd, i) {
do_sethook(xpd, i, 0);
/* will be updated on next battery sample */
priv->polarity[i] = POL_UNKNOWN;
priv->polarity_debounce[i] = 0;
/* will be updated on next battery sample */
priv->battery[i] = BATTERY_UNKNOWN;
/* will be updated on next battery sample */
priv->power[i] = POWER_UNKNOWN;
switch (caller_id_style) {
case CID_STYLE_ETSI_DTMF:
case CID_STYLE_PASSTHROUGH:
oht_pcm(xpd, i, 1);
break;
}
priv->polarity_last_interval[i] = POLARITY_LAST_INTERVAL_NONE;
}
static int do_sethook(xpd_t *xpd, int pos, bool to_offhook)
{
unsigned long flags;
xbus_t *xbus;
struct FXO_priv_data *priv;
int ret = 0;
__u8 value;
BUG_ON(!xpd);
/* We can SETHOOK state only on PSTN */
BUG_ON(PHONEDEV(xpd).direction == TO_PHONE);
xbus = xpd->xbus;
priv = xpd->priv;
BUG_ON(!priv);
if (priv->battery[pos] != BATTERY_ON && to_offhook) {
LINE_NOTICE(xpd, pos,
"Cannot take offhook while battery is off!\n");
return -EINVAL;
}
spin_lock_irqsave(&xpd->lock, flags);
mark_ring(xpd, pos, 0, 0); // No more rings
value = REG_DAA_CONTROL1_ONHM; /* Bit 3 is for CID */
if (to_offhook)
value |= REG_DAA_CONTROL1_OH;
LINE_DBG(SIGNAL, xpd, pos, "SETHOOK: value=0x%02X %s\n", value,
(to_offhook) ? "OFFHOOK" : "ONHOOK");
if (to_offhook)
MARK_ON(priv, pos, LED_GREEN);
else
MARK_OFF(priv, pos, LED_GREEN);
ret =
DAA_DIRECT_REQUEST(xbus, xpd, pos, DAA_WRITE, REG_DAA_CONTROL1,
value);
mark_offhook(xpd, pos, to_offhook);
switch (caller_id_style) {
case CID_STYLE_ETSI_DTMF:
case CID_STYLE_PASSTHROUGH:
break;
default:
oht_pcm(xpd, pos, 0);
break;
}
#ifdef WITH_METERING
priv->metering_count[pos] = 0;
priv->metering_tone_state = 0L;
DAA_DIRECT_REQUEST(xbus, xpd, pos, DAA_WRITE, DAA_REG_METERING, 0x2D);
#endif
/* unstable during hook changes */
reset_battery_readings(xpd, pos);
if (to_offhook) {
priv->power_denial_safezone[pos] = power_denial_safezone;
} else {
priv->power_denial_length[pos] = 0;
priv->power_denial_safezone[pos] = 0;
}
priv->cidtimer[pos] = xpd->timer_count;
spin_unlock_irqrestore(&xpd->lock, flags);
return ret;
}
static void update_dahdi_ring(xpd_t *xpd, int pos, bool on)
{
BUG_ON(!xpd);
if (caller_id_style == CID_STYLE_BELL)
oht_pcm(xpd, pos, !on);
/*
* We should not spinlock before calling dahdi_hooksig() as
* it may call back into our xpp_hooksig() and cause
* a nested spinlock scenario
*/
notify_rxsig(xpd, pos, (on) ? DAHDI_RXSIG_RING : DAHDI_RXSIG_OFFHOOK);
}
static int FXO_card_init(xbus_t *xbus, xpd_t *xpd)
{
struct FXO_priv_data *priv;
int i;
BUG_ON(!xpd);
priv = xpd->priv;
// Hanghup all lines
for_each_line(xpd, i) {
do_sethook(xpd, i, 0);
/* will be updated on next battery sample */
priv->polarity[i] = POL_UNKNOWN;
priv->polarity_debounce[i] = 0;
/* will be updated on next battery sample */
priv->battery[i] = BATTERY_UNKNOWN;
/* will be updated on next battery sample */
priv->power[i] = POWER_UNKNOWN;
if (caller_id_style == CID_STYLE_ETSI_DTMF)
oht_pcm(xpd, i, 1);
}
