lantiq: ltq-atm: set carrier status

This prevents the unconditionally start of pppd since netifd will be
triggered if the device goes into showtime. The same applies to lost
showtime as well.

In compare to the ptm driver, this changeset isn't strictly required,
since the "not in showtime" message is limited to the debug loglevel.
But it reduces the amount of ppp related messages significant.

Signed-off-by: Mathias Kresin <openwrt@kresin.me>

SVN-Revision: 47916

package/kernel/lantiq/ltq-atm/src/ltq_atm.c

@@ -1715,7 +1715,7 @@ static inline void init_tx_tables(void)
 
 static int atm_showtime_enter(struct port_cell_info *port_cell, void *xdata_addr)
 {
-	int i, j;
+	int i, j, port_num;
 
 	ASSERT(port_cell != NULL, "port_cell is NULL");
 	ASSERT(xdata_addr != NULL, "xdata_addr is NULL");
@@ -1738,6 +1738,9 @@ static int atm_showtime_enter(struct port_cell_info *port_cell, void *xdata_addr
 
 	g_showtime = 1;
 
+	for ( port_num = 0; port_num < ATM_PORT_NUMBER; port_num++ )
+		atm_dev_signal_change(g_atm_priv_data.port[port_num].dev, ATM_PHY_SIG_FOUND);
+
 #if defined(CONFIG_VR9)
 	IFX_REG_W32(0x0F, UTP_CFG);
 #endif
@@ -1752,12 +1755,18 @@ static int atm_showtime_enter(struct port_cell_info *port_cell, void *xdata_addr
 
 static int atm_showtime_exit(void)
 {
+	int port_num;
+
 	if ( !g_showtime )
 		return -1;
 
 #if defined(CONFIG_VR9)
 	IFX_REG_W32(0x00, UTP_CFG);
 #endif
+
+	for ( port_num = 0; port_num < ATM_PORT_NUMBER; port_num++ )
+		atm_dev_signal_change(g_atm_priv_data.port[port_num].dev, ATM_PHY_SIG_LOST);
+
 	g_showtime = 0;
 	g_xdata_addr = NULL;
 	printk("leave showtime\n");
@@ -1824,6 +1833,10 @@ static int ltq_atm_probe(struct platform_device *pdev)
 			g_atm_priv_data.port[port_num].dev->ci_range.vci_bits = 16;
 			g_atm_priv_data.port[port_num].dev->link_rate = g_atm_priv_data.port[port_num].tx_max_cell_rate;
 			g_atm_priv_data.port[port_num].dev->dev_data = (void*)port_num;
+
+#if defined(CONFIG_IFXMIPS_DSL_CPE_MEI) || defined(CONFIG_IFXMIPS_DSL_CPE_MEI_MODULE)
+			atm_dev_signal_change(g_atm_priv_data.port[port_num].dev, ATM_PHY_SIG_LOST);
+#endif
 		}
 	}