*/
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <acpi/acpi_bus.h>
#include <linux/kobject.h>
#include <asm/uaccess.h>
#include <linux/moduleparam.h>
+#include <linux/pci.h>
#include "acpiphp.h"
-#include "pci_hotplug.h"
+#include "../pci.h"
#define DRIVER_VERSION "1.0.1"
#define DRIVER_AUTHOR "Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>"
static void ibm_handle_events(acpi_handle handle, u32 event, void *context);
static int ibm_get_table_from_acpi(char **bufp);
static ssize_t ibm_read_apci_table(struct kobject *kobj,
- char *buffer, loff_t pos, size_t size);
+ struct bin_attribute *bin_attr,
+ char *buffer, loff_t pos, size_t size);
static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
u32 lvl, void *context, void **rv);
static int __init ibm_acpiphp_init(void);
static struct bin_attribute ibm_apci_table_attr = {
.attr = {
.name = "apci_table",
- .owner = THIS_MODULE,
.mode = S_IRUGO,
},
.read = ibm_read_apci_table,
* ibm_slot_from_id - workaround for bad ibm hardware
* @id: the slot number that linux refers to the slot by
*
- * Description: this method returns the aCPI slot descriptor
+ * Description: This method returns the aCPI slot descriptor
* corresponding to the Linux slot number. This descriptor
* has info about the aPCI slot id and attention status.
* This descriptor must be freed using kfree when done.
- **/
+ */
static union apci_descriptor *ibm_slot_from_id(int id)
{
int ind = 0, size;
* @slot: the hotplug_slot to work with
* @status: what to set the LED to (0 or 1)
*
- * Description: this method is registered with the acpiphp module as a
- * callback to do the device specific task of setting the LED status
- **/
+ * Description: This method is registered with the acpiphp module as a
+ * callback to do the device specific task of setting the LED status.
+ */
static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
{
union acpi_object args[2];
struct acpi_object_list params = { .pointer = args, .count = 2 };
acpi_status stat;
- unsigned long rc;
+ unsigned long long rc;
union apci_descriptor *ibm_slot;
ibm_slot = ibm_slot_from_id(hpslot_to_sun(slot));
- dbg("%s: set slot %d (%d) attention status to %d\n", __FUNCTION__,
+ dbg("%s: set slot %d (%d) attention status to %d\n", __func__,
ibm_slot->slot.slot_num, ibm_slot->slot.slot_id,
(status ? 1 : 0));
err("APLS evaluation failed: 0x%08x\n", stat);
return -ENODEV;
} else if (!rc) {
- err("APLS method failed: 0x%08lx\n", rc);
+ err("APLS method failed: 0x%08llx\n", rc);
return -ERANGE;
}
return 0;
* @slot: the hotplug_slot to work with
* @status: returns what the LED is set to (0 or 1)
*
- * Description: this method is registered with the acpiphp module as a
- * callback to do the device specific task of getting the LED status
+ * Description: This method is registered with the acpiphp module as a
+ * callback to do the device specific task of getting the LED status.
*
* Because there is no direct method of getting the LED status directly
* from an ACPI call, we read the aPCI table and parse out our
* slot descriptor to read the status from that.
- **/
+ */
static int ibm_get_attention_status(struct hotplug_slot *slot, u8 *status)
{
union apci_descriptor *ibm_slot;
else
*status = 0;
- dbg("%s: get slot %d (%d) attention status is %d\n", __FUNCTION__,
+ dbg("%s: get slot %d (%d) attention status is %d\n", __func__,
ibm_slot->slot.slot_num, ibm_slot->slot.slot_id,
*status);
* @event: the event info (device specific)
* @context: passed context (our notification struct)
*
- * Description: this method is registered as a callback with the ACPI
- * subsystem it is called when this device has an event to notify the OS of
+ * Description: This method is registered as a callback with the ACPI
+ * subsystem it is called when this device has an event to notify the OS of.
*
* The events actually come from the device as two events that get
* synthesized into one event with data by this function. The event
* From section 5.6.2.2 of the ACPI 2.0 spec, I understand that the OSPM will
* only re-enable the interrupt that causes this event AFTER this method
* has returned, thereby enforcing serial access for the notification struct.
- **/
+ */
static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
{
u8 detail = event & 0x0f;
u8 subevent = event & 0xf0;
struct notification *note = context;
- dbg("%s: Received notification %02x\n", __FUNCTION__, event);
+ dbg("%s: Received notification %02x\n", __func__, event);
if (subevent == 0x80) {
- dbg("%s: generationg bus event\n", __FUNCTION__);
- acpi_bus_generate_event(note->device, note->event, detail);
+ dbg("%s: generationg bus event\n", __func__);
+ acpi_bus_generate_proc_event(note->device, note->event, detail);
+ acpi_bus_generate_netlink_event(note->device->pnp.device_class,
+ dev_name(¬e->device->dev),
+ note->event, detail);
} else
note->event = event;
}
* ibm_get_table_from_acpi - reads the APLS buffer from ACPI
* @bufp: address to pointer to allocate for the table
*
- * Description: this method reads the APLS buffer in from ACPI and
+ * Description: This method reads the APLS buffer in from ACPI and
* stores the "stripped" table into a single buffer
- * it allocates and passes the address back in bufp
+ * it allocates and passes the address back in bufp.
*
* If NULL is passed in as buffer, this method only calculates
* the size of the table and returns that without filling
- * in the buffer
+ * in the buffer.
*
- * returns < 0 on error or the size of the table on success
- **/
+ * Returns < 0 on error or the size of the table on success.
+ */
static int ibm_get_table_from_acpi(char **bufp)
{
union acpi_object *package;
status = acpi_evaluate_object(ibm_acpi_handle, "APCI", NULL, &buffer);
if (ACPI_FAILURE(status)) {
- err("%s: APCI evaluation failed\n", __FUNCTION__);
+ err("%s: APCI evaluation failed\n", __func__);
return -ENODEV;
}
if (!(package) ||
(package->type != ACPI_TYPE_PACKAGE) ||
!(package->package.elements)) {
- err("%s: Invalid APCI object\n", __FUNCTION__);
+ err("%s: Invalid APCI object\n", __func__);
goto read_table_done;
}
for(size = 0, i = 0; i < package->package.count; i++) {
if (package->package.elements[i].type != ACPI_TYPE_BUFFER) {
- err("%s: Invalid APCI element %d\n", __FUNCTION__, i);
+ err("%s: Invalid APCI element %d\n", __func__, i);
goto read_table_done;
}
size += package->package.elements[i].buffer.length;
if (bufp == NULL)
goto read_table_done;
- lbuf = kmalloc(size, GFP_KERNEL);
+ lbuf = kzalloc(size, GFP_KERNEL);
dbg("%s: element count: %i, ASL table size: %i, &table = 0x%p\n",
- __FUNCTION__, package->package.count, size, lbuf);
+ __func__, package->package.count, size, lbuf);
if (lbuf) {
*bufp = lbuf;
- memset(lbuf, 0, size);
} else {
size = -ENOMEM;
goto read_table_done;
/**
* ibm_read_apci_table - callback for the sysfs apci_table file
* @kobj: the kobject this binary attribute is a part of
+ * @bin_attr: struct bin_attribute for this file
* @buffer: the kernel space buffer to fill
* @pos: the offset into the file
* @size: the number of bytes requested
*
- * Description: gets registered with sysfs as the reader callback
- * to be executed when /sys/bus/pci/slots/apci_table gets read
+ * Description: Gets registered with sysfs as the reader callback
+ * to be executed when /sys/bus/pci/slots/apci_table gets read.
*
* Since we don't get notified on open and close for this file,
* things get really tricky here...
- * our solution is to only allow reading the table in all at once
- **/
+ * our solution is to only allow reading the table in all at once.
+ */
static ssize_t ibm_read_apci_table(struct kobject *kobj,
- char *buffer, loff_t pos, size_t size)
+ struct bin_attribute *bin_attr,
+ char *buffer, loff_t pos, size_t size)
{
int bytes_read = -EINVAL;
char *table = NULL;
- dbg("%s: pos = %d, size = %zd\n", __FUNCTION__, (int)pos, size);
+ dbg("%s: pos = %d, size = %zd\n", __func__, (int)pos, size);
if (pos == 0) {
bytes_read = ibm_get_table_from_acpi(&table);
* @context: a pointer to our handle to fill when we find the device
* @rv: a return value to fill if desired
*
- * Description: used as a callback when calling acpi_walk_namespace
+ * Description: Used as a callback when calling acpi_walk_namespace
* to find our device. When this method returns non-zero
- * acpi_walk_namespace quits its search and returns our value
- **/
+ * acpi_walk_namespace quits its search and returns our value.
+ */
static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
u32 lvl, void *context, void **rv)
{
acpi_handle *phandle = (acpi_handle *)context;
acpi_status status;
- struct acpi_device_info info;
- struct acpi_buffer info_buffer = {
- .length = sizeof(struct acpi_device_info),
- .pointer = &info,
- };
+ struct acpi_device_info *info;
+ int retval = 0;
- status = acpi_get_object_info(handle, &info_buffer);
+ status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status)) {
- err("%s: Failed to get device information", __FUNCTION__);
- return 0;
+ err("%s: Failed to get device information status=0x%x\n",
+ __func__, status);
+ return retval;
}
- info.hardware_id.value[sizeof(info.hardware_id.value) - 1] = '\0';
- if (info.current_status && (info.valid & ACPI_VALID_HID) &&
- (!strcmp(info.hardware_id.value, IBM_HARDWARE_ID1) ||
- !strcmp(info.hardware_id.value, IBM_HARDWARE_ID2))) {
- dbg("found hardware: %s, handle: %p\n", info.hardware_id.value,
- handle);
+ if (info->current_status && (info->valid & ACPI_VALID_HID) &&
+ (!strcmp(info->hardware_id.string, IBM_HARDWARE_ID1) ||
+ !strcmp(info->hardware_id.string, IBM_HARDWARE_ID2))) {
+ dbg("found hardware: %s, handle: %p\n",
+ info->hardware_id.string, handle);
*phandle = handle;
/* returning non-zero causes the search to stop
* and returns this value to the caller of
* acpi_walk_namespace, but it also causes some warnings
* in the acpi debug code to print...
*/
- return FOUND_APCI;
+ retval = FOUND_APCI;
}
- return 0;
+ kfree(info);
+ return retval;
}
static int __init ibm_acpiphp_init(void)
int retval = 0;
acpi_status status;
struct acpi_device *device;
- struct kobject *sysdir = &pci_hotplug_slots_subsys.kset.kobj;
+ struct kobject *sysdir = &pci_slots_kset->kobj;
- dbg("%s\n", __FUNCTION__);
+ dbg("%s\n", __func__);
if (acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, ibm_find_acpi_device,
+ ACPI_UINT32_MAX, ibm_find_acpi_device, NULL,
&ibm_acpi_handle, NULL) != FOUND_APCI) {
- err("%s: acpi_walk_namespace failed\n", __FUNCTION__);
+ err("%s: acpi_walk_namespace failed\n", __func__);
retval = -ENODEV;
goto init_return;
}
- dbg("%s: found IBM aPCI device\n", __FUNCTION__);
+ dbg("%s: found IBM aPCI device\n", __func__);
if (acpi_bus_get_device(ibm_acpi_handle, &device)) {
- err("%s: acpi_bus_get_device failed\n", __FUNCTION__);
+ err("%s: acpi_bus_get_device failed\n", __func__);
retval = -ENODEV;
goto init_return;
}
&ibm_note);
if (ACPI_FAILURE(status)) {
err("%s: Failed to register notification handler\n",
- __FUNCTION__);
+ __func__);
retval = -EBUSY;
goto init_cleanup;
}
static void __exit ibm_acpiphp_exit(void)
{
acpi_status status;
- struct kobject *sysdir = &pci_hotplug_slots_subsys.kset.kobj;
+ struct kobject *sysdir = &pci_slots_kset->kobj;
- dbg("%s\n", __FUNCTION__);
+ dbg("%s\n", __func__);
if (acpiphp_unregister_attention(&ibm_attention_info))
- err("%s: attention info deregistration failed", __FUNCTION__);
+ err("%s: attention info deregistration failed", __func__);
status = acpi_remove_notify_handler(
ibm_acpi_handle,
ACPI_DEVICE_NOTIFY,
ibm_handle_events);
if (ACPI_FAILURE(status))
- err("%s: Notification handler removal failed\n", __FUNCTION__);
+ err("%s: Notification handler removal failed\n", __func__);
/* remove the /sys entries */
sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff