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-rw-r--r--src/superio/smsc/Kconfig2
-rw-r--r--src/superio/smsc/Makefile.inc1
-rw-r--r--src/superio/smsc/lpc47n227/Config.lb21
-rw-r--r--src/superio/smsc/lpc47n227/Makefile.inc20
-rw-r--r--src/superio/smsc/lpc47n227/chip.h29
-rw-r--r--src/superio/smsc/lpc47n227/lpc47n227.h29
-rw-r--r--src/superio/smsc/lpc47n227/lpc47n227_early_serial.c150
-rw-r--r--src/superio/smsc/lpc47n227/superio.c352
8 files changed, 604 insertions, 0 deletions
diff --git a/src/superio/smsc/Kconfig b/src/superio/smsc/Kconfig
index 3c2ba07932..cae1b7a511 100644
--- a/src/superio/smsc/Kconfig
+++ b/src/superio/smsc/Kconfig
@@ -10,5 +10,7 @@ config SUPERIO_SMSC_LPC47M15X
bool
config SUPERIO_SMSC_LPC47N217
bool
+config SUPERIO_SMSC_LPC47N227
+ bool
config SUPERIO_SMSC_SMSCSUPERIO
bool
diff --git a/src/superio/smsc/Makefile.inc b/src/superio/smsc/Makefile.inc
index 98b87aa1ee..3614d72439 100644
--- a/src/superio/smsc/Makefile.inc
+++ b/src/superio/smsc/Makefile.inc
@@ -4,4 +4,5 @@ subdirs-y += lpc47b397
subdirs-y += lpc47m10x
subdirs-y += lpc47m15x
subdirs-y += lpc47n217
+subdirs-y += lpc47n227
subdirs-y += smscsuperio
diff --git a/src/superio/smsc/lpc47n227/Config.lb b/src/superio/smsc/lpc47n227/Config.lb
new file mode 100644
index 0000000000..f439b9a6e3
--- /dev/null
+++ b/src/superio/smsc/lpc47n227/Config.lb
@@ -0,0 +1,21 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2008 coresystems GmbH
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; version 2 of the License.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+config chip.h
+object superio.o
diff --git a/src/superio/smsc/lpc47n227/Makefile.inc b/src/superio/smsc/lpc47n227/Makefile.inc
new file mode 100644
index 0000000000..88f0177de1
--- /dev/null
+++ b/src/superio/smsc/lpc47n227/Makefile.inc
@@ -0,0 +1,20 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2009 coresystems GmbH
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; version 2 of the License.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+obj-$(CONFIG_SUPERIO_SMSC_LPC47N227) += superio.o
diff --git a/src/superio/smsc/lpc47n227/chip.h b/src/superio/smsc/lpc47n227/chip.h
new file mode 100644
index 0000000000..ef1030751e
--- /dev/null
+++ b/src/superio/smsc/lpc47n227/chip.h
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <device/device.h>
+#include <pc80/keyboard.h>
+#include <uart8250.h>
+
+extern struct chip_operations superio_smsc_lpc47n227_ops;
+
+struct superio_smsc_lpc47n227_config {
+ struct uart8250 com1, com2;
+ struct pc_keyboard keyboard;
+};
diff --git a/src/superio/smsc/lpc47n227/lpc47n227.h b/src/superio/smsc/lpc47n227/lpc47n227.h
new file mode 100644
index 0000000000..10b47736b1
--- /dev/null
+++ b/src/superio/smsc/lpc47n227/lpc47n227.h
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Since the LPC47N227 does not have logical devices but a flat configuration
+ * space, these are arbitrary, but must match declarations in the mainboard
+ * devicetree.cb
+ */
+#define LPC47N227_PP 1 /* Parallel Port */
+#define LPC47N227_SP1 2 /* COM1 */
+#define LPC47N227_SP2 3 /* COM2 */
+#define LPC47N227_KBDC 5 /* Keyboard */
+
+#define LPC47N227_MAX_CONFIG_REGISTER 0x39
diff --git a/src/superio/smsc/lpc47n227/lpc47n227_early_serial.c b/src/superio/smsc/lpc47n227/lpc47n227_early_serial.c
new file mode 100644
index 0000000000..40de4e0007
--- /dev/null
+++ b/src/superio/smsc/lpc47n227/lpc47n227_early_serial.c
@@ -0,0 +1,150 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2005 Digital Design Corporation
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Pre-RAM driver for SMSC LPC47N227 Super I/O chip. */
+
+#include <arch/romcc_io.h>
+#include "lpc47n227.h"
+
+//----------------------------------------------------------------------------------
+// Function: pnp_enter_conf_state
+// Parameters: dev - high 8 bits = Super I/O port
+// Return Value: None
+// Description: Enable access to the LPC47N227's configuration registers.
+//
+static inline void pnp_enter_conf_state(device_t dev)
+{
+ unsigned port = dev >> 8;
+ outb(0x55, port);
+}
+
+//----------------------------------------------------------------------------------
+// Function: pnp_exit_conf_state
+// Parameters: dev - high 8 bits = Super I/O port
+// Return Value: None
+// Description: Disable access to the LPC47N227's configuration registers.
+//
+static void pnp_exit_conf_state(device_t dev)
+{
+ unsigned port = dev >> 8;
+ outb(0xaa, port);
+}
+
+//----------------------------------------------------------------------------------
+// Function: lpc47n227_pnp_set_iobase
+// Parameters: dev - high 8 bits = Super I/O port,
+// low 8 bits = logical device number (per lpc47n227.h)
+// iobase - base I/O port for the logical device
+// Return Value: None
+// Description: Program the base I/O port for the specified logical device.
+//
+void lpc47n227_pnp_set_iobase(device_t dev, unsigned iobase)
+{
+ // LPC47N227 requires base ports to be a multiple of 4
+ ASSERT(!(iobase & 0x3));
+
+ switch (dev & 0xFF) {
+ case LPC47N227_PP:
+ pnp_write_config(dev, 0x23, (iobase >> 2) & 0xff);
+ break;
+
+ case LPC47N227_SP1:
+ pnp_write_config(dev, 0x24, (iobase >> 2) & 0xff);
+ break;
+
+ case LPC47N227_SP2:
+ pnp_write_config(dev, 0x25, (iobase >> 2) & 0xff);
+ break;
+
+ default:
+ break;
+ }
+}
+
+//----------------------------------------------------------------------------------
+// Function: lpc47n227_pnp_set_enable
+// Parameters: dev - high 8 bits = Super I/O port,
+// low 8 bits = logical device number (per lpc47n227.h)
+// enable - 0 to disable, anythig else to enable
+// Return Value: None
+// Description: Enable or disable the specified logical device.
+// Technically, a full disable requires setting the device's base
+// I/O port below 0x100. We don't do that here, because we don't
+// have access to a data structure that specifies what the 'real'
+// base port is (when asked to enable the device). Also the function
+// is used only to disable the device while its true base port is
+// programmed (see lpc47n227_enable_serial() below).
+//
+void lpc47n227_pnp_set_enable(device_t dev, int enable)
+{
+ uint8_t power_register = 0;
+ uint8_t power_mask = 0;
+ uint8_t current_power;
+ uint8_t new_power;
+
+ switch (dev & 0xFF) {
+ case LPC47N227_PP:
+ power_register = 0x01;
+ power_mask = 0x04;
+ break;
+
+ case LPC47N227_SP1:
+ power_register = 0x02;
+ power_mask = 0x08;
+ break;
+
+ case LPC47N227_SP2:
+ power_register = 0x02;
+ power_mask = 0x80;
+ break;
+
+ default:
+ return;
+ }
+
+ current_power = pnp_read_config(dev, power_register);
+ new_power = current_power & ~power_mask; // disable by default
+
+ if (enable)
+ new_power |= power_mask; // Enable
+
+ pnp_write_config(dev, power_register, new_power);
+}
+
+//----------------------------------------------------------------------------------
+// Function: lpc47n227_enable_serial
+// Parameters: dev - high 8 bits = Super I/O port,
+// low 8 bits = logical device number (per lpc47n227.h)
+// iobase - processor I/O port address to assign to this serial device
+// Return Value: bool
+// Description: Configure the base I/O port of the specified serial device
+// and enable the serial device.
+//
+static void lpc47n227_enable_serial(device_t dev, unsigned iobase)
+{
+ // NOTE: Cannot use pnp_set_XXX() here because they assume chip
+ // support for logical devices, which the LPC47N227 doesn't have
+
+ pnp_enter_conf_state(dev);
+ lpc47n227_pnp_set_enable(dev, 0);
+ lpc47n227_pnp_set_iobase(dev, iobase);
+ lpc47n227_pnp_set_enable(dev, 1);
+ pnp_exit_conf_state(dev);
+}
diff --git a/src/superio/smsc/lpc47n227/superio.c b/src/superio/smsc/lpc47n227/superio.c
new file mode 100644
index 0000000000..26f507b695
--- /dev/null
+++ b/src/superio/smsc/lpc47n227/superio.c
@@ -0,0 +1,352 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2005 Digital Design Corporation
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* RAM-based driver for SMSC LPC47N227 Super I/O chip. */
+
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pnp.h>
+#include <console/console.h>
+#include <device/smbus.h>
+#include <string.h>
+#include <bitops.h>
+#include <uart8250.h>
+#include <assert.h>
+#include <stdlib.h>
+#include "chip.h"
+#include "lpc47n227.h"
+
+// Forward declarations
+static void enable_dev(device_t dev);
+void lpc47n227_pnp_set_resources(device_t dev);
+void lpc47n227_pnp_enable_resources(device_t dev);
+void lpc47n227_pnp_enable(device_t dev);
+static void lpc47n227_init(device_t dev);
+
+static void lpc47n227_pnp_set_resource(device_t dev, struct resource *resource);
+void lpc47n227_pnp_set_iobase(device_t dev, unsigned iobase);
+void lpc47n227_pnp_set_drq(device_t dev, unsigned drq);
+void lpc47n227_pnp_set_irq(device_t dev, unsigned irq);
+void lpc47n227_pnp_set_enable(device_t dev, int enable);
+
+static void pnp_enter_conf_state(device_t dev);
+static void pnp_exit_conf_state(device_t dev);
+
+struct chip_operations superio_smsc_lpc47n227_ops = {
+ CHIP_NAME("SMSC LPC47N227 Super I/O")
+ .enable_dev = enable_dev,
+};
+
+static struct device_operations ops = {
+ .read_resources = pnp_read_resources,
+ .set_resources = lpc47n227_pnp_set_resources,
+ .enable_resources = lpc47n227_pnp_enable_resources,
+ .enable = lpc47n227_pnp_enable,
+ .init = lpc47n227_init,
+};
+
+static struct pnp_info pnp_dev_info[] = {
+ {&ops, LPC47N227_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0},},
+ {&ops, LPC47N227_SP1, PNP_IO0 | PNP_IRQ0, {0x7f8, 0},},
+ {&ops, LPC47N227_SP2, PNP_IO0 | PNP_IRQ0, {0x7f8, 0},},
+ {&ops, LPC47N227_KBDC, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x7f8, 0},
+ {0x7f8, 0x4},}
+};
+
+/**********************************************************************************/
+/* PUBLIC INTERFACE */
+/**********************************************************************************/
+
+//----------------------------------------------------------------------------------
+// Function: enable_dev
+// Parameters: dev - pointer to structure describing a Super I/O device
+// Return Value: None
+// Description: Create device structures and allocate resources to devices
+// specified in the pnp_dev_info array (above).
+//
+static void enable_dev(device_t dev)
+{
+ pnp_enable_devices(dev, &pnp_ops,
+ ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
+}
+
+//----------------------------------------------------------------------------------
+// Function: lpc47n227_pnp_set_resources
+// Parameters: dev - pointer to structure describing a Super I/O device
+// Return Value: None
+// Description: Configure the specified Super I/O device with the resources
+// (I/O space, etc.) that have been allocate for it.
+//
+void lpc47n227_pnp_set_resources(device_t dev)
+{
+ int i;
+
+ pnp_enter_conf_state(dev);
+
+ // NOTE: Cannot use pnp_set_resources() here because it assumes chip
+ // support for logical devices, which the LPC47N227 doesn't have
+ for (i = 0; i < dev->resources; i++)
+ lpc47n227_pnp_set_resource(dev, &dev->resource[i]);
+
+ pnp_exit_conf_state(dev);
+}
+
+void lpc47n227_pnp_enable_resources(device_t dev)
+{
+ pnp_enter_conf_state(dev);
+
+ // NOTE: Cannot use pnp_enable_resources() here because it assumes chip
+ // support for logical devices, which the LPC47N227 doesn't have
+ lpc47n227_pnp_set_enable(dev, 1);
+
+ pnp_exit_conf_state(dev);
+}
+
+void lpc47n227_pnp_enable(device_t dev)
+{
+ pnp_enter_conf_state(dev);
+
+ // NOTE: Cannot use pnp_set_enable() here because it assumes chip
+ // support for logical devices, which the LPC47N227 doesn't have
+
+ if (dev->enabled) {
+ lpc47n227_pnp_set_enable(dev, 1);
+ } else {
+ lpc47n227_pnp_set_enable(dev, 0);
+ }
+
+ pnp_exit_conf_state(dev);
+}
+
+//----------------------------------------------------------------------------------
+// Function: lpc47n227_init
+// Parameters: dev - pointer to structure describing a Super I/O device
+// Return Value: None
+// Description: Initialize the specified Super I/O device.
+// Devices other than COM ports and keyboard controller are ignored.
+// For COM ports, we configure the baud rate.
+//
+static void lpc47n227_init(device_t dev)
+{
+ struct superio_smsc_lpc47n227_config *conf = dev->chip_info;
+ struct resource *res0;
+
+ if (!dev->enabled)
+ return;
+
+ switch (dev->path.pnp.device) {
+ case LPC47N227_SP1:
+ res0 = find_resource(dev, PNP_IDX_IO0);
+ init_uart8250(res0->base, &conf->com1);
+ break;
+
+ case LPC47N227_SP2:
+ res0 = find_resource(dev, PNP_IDX_IO0);
+ init_uart8250(res0->base, &conf->com2);
+ break;
+
+ case LPC47N227_KBDC:
+ printk_debug("LPC47N227: Initializing keyboard.\n");
+ init_pc_keyboard(0x60, 0x64, &conf->keyboard);
+ break;
+ }
+}
+
+/**********************************************************************************/
+/* PRIVATE FUNCTIONS */
+/**********************************************************************************/
+
+static void lpc47n227_pnp_set_resource(device_t dev, struct resource *resource)
+{
+ if (!(resource->flags & IORESOURCE_ASSIGNED)) {
+ printk_err("ERROR: %s %02lx not allocated\n",
+ dev_path(dev), resource->index);
+ return;
+ }
+
+ /* Now store the resource */
+ // NOTE: Cannot use pnp_set_XXX() here because they assume chip
+ // support for logical devices, which the LPC47N227 doesn't have
+
+ if (resource->flags & IORESOURCE_IO) {
+ lpc47n227_pnp_set_iobase(dev, resource->base);
+ } else if (resource->flags & IORESOURCE_DRQ) {
+ lpc47n227_pnp_set_drq(dev, resource->base);
+ } else if (resource->flags & IORESOURCE_IRQ) {
+ lpc47n227_pnp_set_irq(dev, resource->base);
+ } else {
+ printk_err("ERROR: %s %02lx unknown resource type\n",
+ dev_path(dev), resource->index);
+ return;
+ }
+ resource->flags |= IORESOURCE_STORED;
+
+ report_resource_stored(dev, resource, "");
+}
+
+void lpc47n227_pnp_set_iobase(device_t dev, unsigned iobase)
+{
+ ASSERT(!(iobase & 0x3));
+
+ switch (dev->path.pnp.device) {
+ case LPC47N227_PP:
+ pnp_write_config(dev, 0x23, (iobase >> 2) & 0xff);
+ break;
+
+ case LPC47N227_SP1:
+ pnp_write_config(dev, 0x24, (iobase >> 2) & 0xff);
+ break;
+
+ case LPC47N227_SP2:
+ pnp_write_config(dev, 0x25, (iobase >> 2) & 0xff);
+ break;
+
+ case LPC47N227_KBDC:
+ break;
+
+ default:
+ BUG();
+ break;
+ }
+}
+
+void lpc47n227_pnp_set_drq(device_t dev, unsigned drq)
+{
+ if (dev->path.pnp.device == LPC47N227_PP) {
+ const uint8_t PP_DMA_MASK = 0x0F;
+ const uint8_t PP_DMA_SELECTION_REGISTER = 0x26;
+ uint8_t current_config =
+ pnp_read_config(dev, PP_DMA_SELECTION_REGISTER);
+ uint8_t new_config;
+
+ ASSERT(!(drq & ~PP_DMA_MASK)); // DRQ out of range??
+ new_config = (current_config & ~PP_DMA_MASK) | drq;
+ pnp_write_config(dev, PP_DMA_SELECTION_REGISTER, new_config);
+ } else {
+ BUG();
+ }
+}
+
+void lpc47n227_pnp_set_irq(device_t dev, unsigned irq)
+{
+ uint8_t irq_config_register = 0;
+ uint8_t irq_config_mask = 0;
+ uint8_t current_config;
+ uint8_t new_config;
+
+ switch (dev->path.pnp.device) {
+ case LPC47N227_PP:
+ irq_config_register = 0x27;
+ irq_config_mask = 0x0F;
+ break;
+
+ case LPC47N227_SP1:
+ irq_config_register = 0x28;
+ irq_config_mask = 0xF0;
+ irq <<= 4;
+ break;
+
+ case LPC47N227_SP2:
+ irq_config_register = 0x28;
+ irq_config_mask = 0x0F;
+ break;
+
+ case LPC47N227_KBDC:
+ break;
+
+ default:
+ BUG();
+ return;
+ }
+
+ current_config = pnp_read_config(dev, irq_config_register);
+ new_config = (current_config & ~irq_config_mask) | irq;
+ pnp_write_config(dev, irq_config_register, new_config);
+}
+
+void lpc47n227_pnp_set_enable(device_t dev, int enable)
+{
+ uint8_t power_register = 0;
+ uint8_t power_mask = 0;
+ uint8_t current_power;
+ uint8_t new_power;
+
+ switch (dev->path.pnp.device) {
+ case LPC47N227_PP:
+ power_register = 0x01;
+ power_mask = 0x04;
+ break;
+
+ case LPC47N227_SP1:
+ power_register = 0x02;
+ power_mask = 0x08;
+ break;
+
+ case LPC47N227_SP2:
+ power_register = 0x02;
+ power_mask = 0x80;
+ break;
+
+ case LPC47N227_KBDC:
+ break;
+
+ default:
+ BUG();
+ return;
+ }
+
+ current_power = pnp_read_config(dev, power_register);
+ new_power = current_power & ~power_mask; // disable by default
+
+ if (enable) {
+ struct resource *ioport_resource =
+ find_resource(dev, PNP_IDX_IO0);
+ lpc47n227_pnp_set_iobase(dev, ioport_resource->base);
+
+ new_power |= power_mask; // Enable
+
+ } else {
+ lpc47n227_pnp_set_iobase(dev, 0);
+ }
+ pnp_write_config(dev, power_register, new_power);
+}
+
+//----------------------------------------------------------------------------------
+// Function: pnp_enter_conf_state
+// Parameters: dev - pointer to structure describing a Super I/O device
+// Return Value: None
+// Description: Enable access to the LPC47N227's configuration registers.
+//
+static void pnp_enter_conf_state(device_t dev)
+{
+ outb(0x55, dev->path.pnp.port);
+}
+
+//----------------------------------------------------------------------------------
+// Function: pnp_exit_conf_state
+// Parameters: dev - pointer to structure describing a Super I/O device
+// Return Value: None
+// Description: Disable access to the LPC47N227's configuration registers.
+//
+static void pnp_exit_conf_state(device_t dev)
+{
+ outb(0xaa, dev->path.pnp.port);
+}
+