[deliverable/linux.git] / drivers / pci / hotplug / cpci_hotplug_pci.c

/*
 * CompactPCI Hot Plug Driver PCI functions
 *
 * Copyright (C) 2002,2005 by SOMA Networks, Inc.
 *
 * All rights reserved.
 *
 * 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; either version 2 of the License, or (at
 * your option) any later version.
 *
 * 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, GOOD TITLE or
 * NON INFRINGEMENT.  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Send feedback to <scottm@somanetworks.com>
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/proc_fs.h>
#include "../pci.h"
#include "pci_hotplug.h"
#include "cpci_hotplug.h"

#define MY_NAME	"cpci_hotplug"

extern int cpci_debug;

#define dbg(format, arg...)					\
	do {							\
		if (cpci_debug)					\
			printk (KERN_DEBUG "%s: " format "\n",	\
				MY_NAME , ## arg); 		\
	} while (0)
#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg)

#define ROUND_UP(x, a)		(((x) + (a) - 1) & ~((a) - 1))


u8 cpci_get_attention_status(struct slot* slot)
{
	int hs_cap;
	u16 hs_csr;

	hs_cap = pci_bus_find_capability(slot->bus,
					 slot->devfn,
					 PCI_CAP_ID_CHSWP);
	if (!hs_cap)
		return 0;

	if (pci_bus_read_config_word(slot->bus,
				     slot->devfn,
				     hs_cap + 2,
				     &hs_csr))
		return 0;

	return hs_csr & 0x0008 ? 1 : 0;
}

int cpci_set_attention_status(struct slot* slot, int status)
{
	int hs_cap;
	u16 hs_csr;

	hs_cap = pci_bus_find_capability(slot->bus,
					 slot->devfn,
					 PCI_CAP_ID_CHSWP);
	if (!hs_cap)
		return 0;
	if (pci_bus_read_config_word(slot->bus,
				     slot->devfn,
				     hs_cap + 2,
				     &hs_csr))
		return 0;
	if (status)
		hs_csr |= HS_CSR_LOO;
	else
		hs_csr &= ~HS_CSR_LOO;
	if (pci_bus_write_config_word(slot->bus,
				      slot->devfn,
				      hs_cap + 2,
				      hs_csr))
		return 0;
	return 1;
}

u16 cpci_get_hs_csr(struct slot* slot)
{
	int hs_cap;
	u16 hs_csr;

	hs_cap = pci_bus_find_capability(slot->bus,
					 slot->devfn,
					 PCI_CAP_ID_CHSWP);
	if (!hs_cap)
		return 0xFFFF;
	if (pci_bus_read_config_word(slot->bus,
				     slot->devfn,
				     hs_cap + 2,
				     &hs_csr))
		return 0xFFFF;
	return hs_csr;
}

int cpci_check_and_clear_ins(struct slot* slot)
{
	int hs_cap;
	u16 hs_csr;
	int ins = 0;

	hs_cap = pci_bus_find_capability(slot->bus,
					 slot->devfn,
					 PCI_CAP_ID_CHSWP);
	if (!hs_cap)
		return 0;
	if (pci_bus_read_config_word(slot->bus,
				     slot->devfn,
				     hs_cap + 2,
				     &hs_csr))
		return 0;
	if (hs_csr & HS_CSR_INS) {
		/* Clear INS (by setting it) */
		if (pci_bus_write_config_word(slot->bus,
					      slot->devfn,
					      hs_cap + 2,
					      hs_csr))
			ins = 0;
		else
			ins = 1;
	}
	return ins;
}

int cpci_check_ext(struct slot* slot)
{
	int hs_cap;
	u16 hs_csr;
	int ext = 0;

	hs_cap = pci_bus_find_capability(slot->bus,
					 slot->devfn,
					 PCI_CAP_ID_CHSWP);
	if (!hs_cap)
		return 0;
	if (pci_bus_read_config_word(slot->bus,
				     slot->devfn,
				     hs_cap + 2,
				     &hs_csr))
		return 0;
	if (hs_csr & HS_CSR_EXT)
		ext = 1;
	return ext;
}

int cpci_clear_ext(struct slot* slot)
{
	int hs_cap;
	u16 hs_csr;

	hs_cap = pci_bus_find_capability(slot->bus,
					 slot->devfn,
					 PCI_CAP_ID_CHSWP);
	if (!hs_cap)
		return -ENODEV;
	if (pci_bus_read_config_word(slot->bus,
				     slot->devfn,
				     hs_cap + 2,
				     &hs_csr))
		return -ENODEV;
	if (hs_csr & HS_CSR_EXT) {
		/* Clear EXT (by setting it) */
		if (pci_bus_write_config_word(slot->bus,
					      slot->devfn,
					      hs_cap + 2,
					      hs_csr))
			return -ENODEV;
	}
	return 0;
}

int cpci_led_on(struct slot* slot)
{
	int hs_cap;
	u16 hs_csr;

	hs_cap = pci_bus_find_capability(slot->bus,
					 slot->devfn,
					 PCI_CAP_ID_CHSWP);
	if (!hs_cap)
		return -ENODEV;
	if (pci_bus_read_config_word(slot->bus,
				     slot->devfn,
				     hs_cap + 2,
				     &hs_csr))
		return -ENODEV;
	if ((hs_csr & HS_CSR_LOO) != HS_CSR_LOO) {
		hs_csr |= HS_CSR_LOO;
		if (pci_bus_write_config_word(slot->bus,
					      slot->devfn,
					      hs_cap + 2,
					      hs_csr)) {
			err("Could not set LOO for slot %s",
			    slot->hotplug_slot->name);
			return -ENODEV;
		}
	}
	return 0;
}

int cpci_led_off(struct slot* slot)
{
	int hs_cap;
	u16 hs_csr;

	hs_cap = pci_bus_find_capability(slot->bus,
					 slot->devfn,
					 PCI_CAP_ID_CHSWP);
	if (!hs_cap)
		return -ENODEV;
	if (pci_bus_read_config_word(slot->bus,
				     slot->devfn,
				     hs_cap + 2,
				     &hs_csr))
		return -ENODEV;
	if (hs_csr & HS_CSR_LOO) {
		hs_csr &= ~HS_CSR_LOO;
		if (pci_bus_write_config_word(slot->bus,
					      slot->devfn,
					      hs_cap + 2,
					      hs_csr)) {
			err("Could not clear LOO for slot %s",
			    slot->hotplug_slot->name);
			return -ENODEV;
		}
	}
	return 0;
}


/*
 * Device configuration functions
 */

int cpci_configure_slot(struct slot* slot)
{
	struct pci_bus *parent;
	int fn;

	dbg("%s - enter", __FUNCTION__);

	if (slot->dev == NULL) {
		dbg("pci_dev null, finding %02x:%02x:%x",
		    slot->bus->number, PCI_SLOT(slot->devfn), PCI_FUNC(slot->devfn));
		slot->dev = pci_get_slot(slot->bus, slot->devfn);
	}

	/* Still NULL? Well then scan for it! */
	if (slot->dev == NULL) {
		int n;
		dbg("pci_dev still null");

		/*
		 * This will generate pci_dev structures for all functions, but
		 * we will only call this case when lookup fails.
		 */
		n = pci_scan_slot(slot->bus, slot->devfn);
		dbg("%s: pci_scan_slot returned %d", __FUNCTION__, n);
		slot->dev = pci_get_slot(slot->bus, slot->devfn);
		if (slot->dev == NULL) {
			err("Could not find PCI device for slot %02x", slot->number);
			return -ENODEV;
		}
	}
	parent = slot->dev->bus;

	for (fn = 0; fn < 8; fn++) {
		struct pci_dev *dev;

		dev = pci_get_slot(parent, PCI_DEVFN(PCI_SLOT(slot->devfn), fn));
		if (!dev)
			continue;
		if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) ||
		    (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) {
			/* Find an unused bus number for the new bridge */
			struct pci_bus *child;
			unsigned char busnr, start = parent->secondary;
			unsigned char end = parent->subordinate;

			for (busnr = start; busnr <= end; busnr++) {
				if (!pci_find_bus(pci_domain_nr(parent),
						  busnr))
					break;
			}
			if (busnr >= end) {
				err("No free bus for hot-added bridge\n");
				pci_dev_put(dev);
				continue;
			}
			child = pci_add_new_bus(parent, dev, busnr);
			if (!child) {
				err("Cannot add new bus for %s\n",
				    pci_name(dev));
				pci_dev_put(dev);
				continue;
			}
			child->subordinate = pci_do_scan_bus(child);
			pci_bus_size_bridges(child);
		}
		pci_dev_put(dev);
	}

	pci_bus_assign_resources(parent);
	pci_bus_add_devices(parent);
	pci_enable_bridges(parent);

	dbg("%s - exit", __FUNCTION__);
	return 0;
}

int cpci_unconfigure_slot(struct slot* slot)
{
	int i;
	struct pci_dev *dev;

	dbg("%s - enter", __FUNCTION__);
	if (!slot->dev) {
		err("No device for slot %02x\n", slot->number);
		return -ENODEV;
	}

	for (i = 0; i < 8; i++) {
		dev = pci_get_slot(slot->bus,
				    PCI_DEVFN(PCI_SLOT(slot->devfn), i));
		if (dev) {
			pci_remove_bus_device(dev);
			pci_dev_put(dev);
		}
	}
	pci_dev_put(slot->dev);
	slot->dev = NULL;

	dbg("%s - exit", __FUNCTION__);
	return 0;
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* CompactPCI Hot Plug Driver PCI functions
	3	*
bcc488ab	4	* Copyright (C) 2002,2005 by SOMA Networks, Inc.
1da177e4 LT	5	*
	6	* All rights reserved.
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or (at
	11	* your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
	16	* NON INFRINGEMENT. See the GNU General Public License for more
	17	* details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	22	*
	23	* Send feedback to <scottm@somanetworks.com>
	24	*/
	25
1da177e4 LT	26	#include <linux/module.h>
	27	#include <linux/kernel.h>
	28	#include <linux/pci.h>
	29	#include <linux/proc_fs.h>
	30	#include "../pci.h"
	31	#include "pci_hotplug.h"
	32	#include "cpci_hotplug.h"
	33
1da177e4	34	#define MY_NAME "cpci_hotplug"
1da177e4 LT	35
	36	extern int cpci_debug;
	37
	38	#define dbg(format, arg...) \
	39	do { \
bcc488ab	40	if (cpci_debug) \
1da177e4 LT	41	printk (KERN_DEBUG "%s: " format "\n", \
1da177e4 LT	42	MY_NAME , ## arg); \
bcc488ab	43	} while (0)
1da177e4 LT	44	#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
	45	#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
	46	#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg)
	47
	48	#define ROUND_UP(x, a) (((x) + (a) - 1) & ~((a) - 1))
	49
	50
	51	u8 cpci_get_attention_status(struct slot* slot)
	52	{
	53	int hs_cap;
	54	u16 hs_csr;
	55
	56	hs_cap = pci_bus_find_capability(slot->bus,
	57	slot->devfn,
	58	PCI_CAP_ID_CHSWP);
bcc488ab	59	if (!hs_cap)
1da177e4	60	return 0;
1da177e4	61
bcc488ab	62	if (pci_bus_read_config_word(slot->bus,
1da177e4 LT	63	slot->devfn,
1da177e4 LT	64	hs_cap + 2,
bcc488ab	65	&hs_csr))
1da177e4	66	return 0;
bcc488ab	67
1da177e4 LT	68	return hs_csr & 0x0008 ? 1 : 0;
	69	}
	70
	71	int cpci_set_attention_status(struct slot* slot, int status)
	72	{
	73	int hs_cap;
	74	u16 hs_csr;
	75
	76	hs_cap = pci_bus_find_capability(slot->bus,
	77	slot->devfn,
	78	PCI_CAP_ID_CHSWP);
bcc488ab	79	if (!hs_cap)
1da177e4	80	return 0;
bcc488ab	81	if (pci_bus_read_config_word(slot->bus,
1da177e4 LT	82	slot->devfn,
1da177e4 LT	83	hs_cap + 2,
bcc488ab	84	&hs_csr))
1da177e4	85	return 0;
bcc488ab	86	if (status)
1da177e4	87	hs_csr \|= HS_CSR_LOO;
bcc488ab	88	else
1da177e4	89	hs_csr &= ~HS_CSR_LOO;
bcc488ab	90	if (pci_bus_write_config_word(slot->bus,
1da177e4 LT	91	slot->devfn,
1da177e4 LT	92	hs_cap + 2,
bcc488ab	93	hs_csr))
1da177e4	94	return 0;
1da177e4 LT	95	return 1;
	96	}
	97
	98	u16 cpci_get_hs_csr(struct slot* slot)
	99	{
	100	int hs_cap;
	101	u16 hs_csr;
	102
	103	hs_cap = pci_bus_find_capability(slot->bus,
	104	slot->devfn,
	105	PCI_CAP_ID_CHSWP);
bcc488ab	106	if (!hs_cap)
1da177e4	107	return 0xFFFF;
bcc488ab	108	if (pci_bus_read_config_word(slot->bus,
1da177e4 LT	109	slot->devfn,
1da177e4 LT	110	hs_cap + 2,
bcc488ab	111	&hs_csr))
1da177e4	112	return 0xFFFF;
1da177e4 LT	113	return hs_csr;
	114	}
	115
1da177e4 LT	116	int cpci_check_and_clear_ins(struct slot* slot)
	117	{
	118	int hs_cap;
	119	u16 hs_csr;
	120	int ins = 0;
	121
	122	hs_cap = pci_bus_find_capability(slot->bus,
	123	slot->devfn,
	124	PCI_CAP_ID_CHSWP);
bcc488ab	125	if (!hs_cap)
1da177e4	126	return 0;
bcc488ab	127	if (pci_bus_read_config_word(slot->bus,
1da177e4 LT	128	slot->devfn,
1da177e4 LT	129	hs_cap + 2,
bcc488ab	130	&hs_csr))
1da177e4	131	return 0;
bcc488ab	132	if (hs_csr & HS_CSR_INS) {
1da177e4	133	/* Clear INS (by setting it) */
bcc488ab	134	if (pci_bus_write_config_word(slot->bus,
1da177e4 LT	135	slot->devfn,
1da177e4 LT	136	hs_cap + 2,
bcc488ab	137	hs_csr))
1da177e4	138	ins = 0;
bcc488ab SM	139	else
bcc488ab SM	140	ins = 1;
1da177e4 LT	141	}
	142	return ins;
	143	}
	144
	145	int cpci_check_ext(struct slot* slot)
	146	{
	147	int hs_cap;
	148	u16 hs_csr;
	149	int ext = 0;
	150
	151	hs_cap = pci_bus_find_capability(slot->bus,
	152	slot->devfn,
	153	PCI_CAP_ID_CHSWP);
bcc488ab	154	if (!hs_cap)
1da177e4	155	return 0;
bcc488ab	156	if (pci_bus_read_config_word(slot->bus,
1da177e4 LT	157	slot->devfn,
1da177e4 LT	158	hs_cap + 2,
bcc488ab	159	&hs_csr))
1da177e4	160	return 0;
bcc488ab	161	if (hs_csr & HS_CSR_EXT)
1da177e4	162	ext = 1;
1da177e4 LT	163	return ext;
	164	}
	165
	166	int cpci_clear_ext(struct slot* slot)
	167	{
	168	int hs_cap;
	169	u16 hs_csr;
	170
	171	hs_cap = pci_bus_find_capability(slot->bus,
	172	slot->devfn,
	173	PCI_CAP_ID_CHSWP);
bcc488ab	174	if (!hs_cap)
1da177e4	175	return -ENODEV;
bcc488ab	176	if (pci_bus_read_config_word(slot->bus,
1da177e4 LT	177	slot->devfn,
1da177e4 LT	178	hs_cap + 2,
bcc488ab	179	&hs_csr))
1da177e4	180	return -ENODEV;
bcc488ab	181	if (hs_csr & HS_CSR_EXT) {
1da177e4	182	/* Clear EXT (by setting it) */
bcc488ab	183	if (pci_bus_write_config_word(slot->bus,
1da177e4 LT	184	slot->devfn,
1da177e4 LT	185	hs_cap + 2,
bcc488ab	186	hs_csr))
1da177e4	187	return -ENODEV;
1da177e4 LT	188	}
	189	return 0;
	190	}
	191
	192	int cpci_led_on(struct slot* slot)
	193	{
	194	int hs_cap;
	195	u16 hs_csr;
	196
	197	hs_cap = pci_bus_find_capability(slot->bus,
	198	slot->devfn,
	199	PCI_CAP_ID_CHSWP);
bcc488ab	200	if (!hs_cap)
1da177e4	201	return -ENODEV;
bcc488ab	202	if (pci_bus_read_config_word(slot->bus,
1da177e4 LT	203	slot->devfn,
1da177e4 LT	204	hs_cap + 2,
bcc488ab	205	&hs_csr))
1da177e4	206	return -ENODEV;
bcc488ab	207	if ((hs_csr & HS_CSR_LOO) != HS_CSR_LOO) {
1da177e4	208	hs_csr \|= HS_CSR_LOO;
bcc488ab	209	if (pci_bus_write_config_word(slot->bus,
1da177e4 LT	210	slot->devfn,
	211	hs_cap + 2,
	212	hs_csr)) {
	213	err("Could not set LOO for slot %s",
	214	slot->hotplug_slot->name);
	215	return -ENODEV;
	216	}
	217	}
	218	return 0;
	219	}
	220
	221	int cpci_led_off(struct slot* slot)
	222	{
	223	int hs_cap;
	224	u16 hs_csr;
	225
	226	hs_cap = pci_bus_find_capability(slot->bus,
	227	slot->devfn,
	228	PCI_CAP_ID_CHSWP);
bcc488ab	229	if (!hs_cap)
1da177e4	230	return -ENODEV;
bcc488ab	231	if (pci_bus_read_config_word(slot->bus,
1da177e4 LT	232	slot->devfn,
1da177e4 LT	233	hs_cap + 2,
bcc488ab	234	&hs_csr))
1da177e4	235	return -ENODEV;
bcc488ab	236	if (hs_csr & HS_CSR_LOO) {
1da177e4	237	hs_csr &= ~HS_CSR_LOO;
bcc488ab	238	if (pci_bus_write_config_word(slot->bus,
1da177e4 LT	239	slot->devfn,
	240	hs_cap + 2,
	241	hs_csr)) {
	242	err("Could not clear LOO for slot %s",
	243	slot->hotplug_slot->name);
	244	return -ENODEV;
	245	}
	246	}
	247	return 0;
	248	}
	249
	250
	251	/*
	252	* Device configuration functions
	253	*/
	254
1da177e4 LT	255	int cpci_configure_slot(struct slot* slot)
1da177e4 LT	256	{
cc702c2c SM	257	struct pci_bus *parent;
cc702c2c SM	258	int fn;
1da177e4 LT	259
	260	dbg("%s - enter", __FUNCTION__);
	261
bcc488ab	262	if (slot->dev == NULL) {
1da177e4 LT	263	dbg("pci_dev null, finding %02x:%02x:%x",
1da177e4 LT	264	slot->bus->number, PCI_SLOT(slot->devfn), PCI_FUNC(slot->devfn));
bcc488ab	265	slot->dev = pci_get_slot(slot->bus, slot->devfn);
1da177e4 LT	266	}
	267
	268	/* Still NULL? Well then scan for it! */
bcc488ab	269	if (slot->dev == NULL) {
1da177e4 LT	270	int n;
	271	dbg("pci_dev still null");
	272
	273	/*
	274	* This will generate pci_dev structures for all functions, but
	275	* we will only call this case when lookup fails.
	276	*/
	277	n = pci_scan_slot(slot->bus, slot->devfn);
	278	dbg("%s: pci_scan_slot returned %d", __FUNCTION__, n);
bcc488ab SM	279	slot->dev = pci_get_slot(slot->bus, slot->devfn);
bcc488ab SM	280	if (slot->dev == NULL) {
1da177e4	281	err("Could not find PCI device for slot %02x", slot->number);
cc702c2c	282	return -ENODEV;
1da177e4 LT	283	}
1da177e4 LT	284	}
cc702c2c SM	285	parent = slot->dev->bus;
	286
	287	for (fn = 0; fn < 8; fn++) {
	288	struct pci_dev *dev;
	289
	290	dev = pci_get_slot(parent, PCI_DEVFN(PCI_SLOT(slot->devfn), fn));
	291	if (!dev)
	292	continue;
	293	if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) \|\|
	294	(dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) {
	295	/* Find an unused bus number for the new bridge */
	296	struct pci_bus *child;
	297	unsigned char busnr, start = parent->secondary;
	298	unsigned char end = parent->subordinate;
	299
	300	for (busnr = start; busnr <= end; busnr++) {
	301	if (!pci_find_bus(pci_domain_nr(parent),
	302	busnr))
	303	break;
	304	}
	305	if (busnr >= end) {
	306	err("No free bus for hot-added bridge\n");
	307	pci_dev_put(dev);
	308	continue;
	309	}
	310	child = pci_add_new_bus(parent, dev, busnr);
	311	if (!child) {
	312	err("Cannot add new bus for %s\n",
	313	pci_name(dev));
	314	pci_dev_put(dev);
	315	continue;
	316	}
	317	child->subordinate = pci_do_scan_bus(child);
	318	pci_bus_size_bridges(child);
	319	}
	320	pci_dev_put(dev);
1da177e4 LT	321	}
1da177e4 LT	322
cc702c2c SM	323	pci_bus_assign_resources(parent);
	324	pci_bus_add_devices(parent);
	325	pci_enable_bridges(parent);
43b7d7cf	326
43b7d7cf SM	327	dbg("%s - exit", __FUNCTION__);
43b7d7cf SM	328	return 0;
1da177e4 LT	329	}
	330
	331	int cpci_unconfigure_slot(struct slot* slot)
	332	{
1da177e4	333	int i;
1da177e4 LT	334	struct pci_dev *dev;
	335
	336	dbg("%s - enter", __FUNCTION__);
bcc488ab	337	if (!slot->dev) {
1da177e4 LT	338	err("No device for slot %02x\n", slot->number);
	339	return -ENODEV;
	340	}
	341
1da177e4	342	for (i = 0; i < 8; i++) {
bcc488ab	343	dev = pci_get_slot(slot->bus,
1da177e4	344	PCI_DEVFN(PCI_SLOT(slot->devfn), i));
bcc488ab	345	if (dev) {
43b7d7cf	346	pci_remove_bus_device(dev);
03e49d40	347	pci_dev_put(dev);
1da177e4 LT	348	}
1da177e4 LT	349	}
03e49d40 SM	350	pci_dev_put(slot->dev);
	351	slot->dev = NULL;
	352
43b7d7cf SM	353	dbg("%s - exit", __FUNCTION__);
43b7d7cf SM	354	return 0;
1da177e4	355	}