linux-imx

/*

 * (C) 2005, 2006 Linux Networx (http://lnxi.com)

 * This file may be distributed under the terms of the

 * GNU General Public License.

 *

 * Written Doug Thompson <norsk5@xmission.com>

 *

 */

#include <linux/module.h>

#include <linux/edac.h>

#include <linux/slab.h>

#include <linux/ctype.h>

​

#include "edac_pci.h"

#include "edac_module.h"

​

#define EDAC_PCI_SYMLINK    "device"

​

/* data variables exported via sysfs */

static int check_pci_errors;        /* default NO check PCI parity */

static int edac_pci_panic_on_pe;    /* default NO panic on PCI Parity */

static int edac_pci_log_pe = 1;     /* log PCI parity errors */

static int edac_pci_log_npe = 1;    /* log PCI non-parity error errors */

static int edac_pci_poll_msec = 1000;   /* one second workq period */

​

static atomic_t pci_parity_count = ATOMIC_INIT(0);

static atomic_t pci_nonparity_count = ATOMIC_INIT(0);

​

static struct kobject *edac_pci_top_main_kobj;

static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);

​

/* getter functions for the data variables */

int edac_pci_get_check_errors(void)

{

    return check_pci_errors;

}

​

static int edac_pci_get_log_pe(void)

{

    return edac_pci_log_pe;

}

​

static int edac_pci_get_log_npe(void)

{

    return edac_pci_log_npe;

}

​

static int edac_pci_get_panic_on_pe(void)

{

    return edac_pci_panic_on_pe;

}

​

int edac_pci_get_poll_msec(void)

{

    return edac_pci_poll_msec;

}

​

/**************************** EDAC PCI sysfs instance *******************/

static ssize_t instance_pe_count_show(struct edac_pci_ctl_info *pci, char *data)

{

    return sprintf(data, "%u\n", atomic_read(&pci->counters.pe_count));

}

​

static ssize_t instance_npe_count_show(struct edac_pci_ctl_info *pci,

                char *data)

{

    return sprintf(data, "%u\n", atomic_read(&pci->counters.npe_count));

}

​

#define to_instance(k) container_of(k, struct edac_pci_ctl_info, kobj)

#define to_instance_attr(a) container_of(a, struct instance_attribute, attr)

​

/* DEVICE instance kobject release() function */

static void edac_pci_instance_release(struct kobject *kobj)

{

    struct edac_pci_ctl_info *pci;

​

    edac_dbg(0, "\n");

​

    /* Form pointer to containing struct, the pci control struct */

    pci = to_instance(kobj);

​

    /* decrement reference count on top main kobj */

    kobject_put(edac_pci_top_main_kobj);

​

    kfree(pci); /* Free the control struct */

}

​

/* instance specific attribute structure */

struct instance_attribute {

    struct attribute attr;

    ssize_t(*show) (struct edac_pci_ctl_info *, char *);