patch-2.4.21 linux-2.4.21/drivers/hotplug/acpiphp_core.c
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- Lines: 432
- Date:
2003-06-13 07:51:33.000000000 -0700
- Orig file:
linux-2.4.20/drivers/hotplug/acpiphp_core.c
- Orig date:
2002-11-28 15:53:12.000000000 -0800
diff -urN linux-2.4.20/drivers/hotplug/acpiphp_core.c linux-2.4.21/drivers/hotplug/acpiphp_core.c
@@ -50,12 +50,14 @@
#define MY_NAME THIS_MODULE->name
#endif
+static int debug;
+int acpiphp_debug;
+
/* local variables */
-static int debug = 1; /* XXX set to 0 after debug */
static int num_slots;
-#define DRIVER_VERSION "0.3"
-#define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@us.ibm.com>"
+#define DRIVER_VERSION "0.4"
+#define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@us.ibm.com>, Takayoshi Kochi <t-kouchi@cq.jp.nec.com>"
#define DRIVER_DESC "ACPI Hot Plug PCI Controller Driver"
MODULE_AUTHOR(DRIVER_AUTHOR);
@@ -72,17 +74,21 @@
static int get_attention_status (struct hotplug_slot *slot, u8 *value);
static int get_latch_status (struct hotplug_slot *slot, u8 *value);
static int get_adapter_status (struct hotplug_slot *slot, u8 *value);
+static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value);
+static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value);
static struct hotplug_slot_ops acpi_hotplug_slot_ops = {
- owner: THIS_MODULE,
- enable_slot: enable_slot,
- disable_slot: disable_slot,
- set_attention_status: set_attention_status,
- hardware_test: hardware_test,
- get_power_status: get_power_status,
- get_attention_status: get_attention_status,
- get_latch_status: get_latch_status,
- get_adapter_status: get_adapter_status,
+ .owner = THIS_MODULE,
+ .enable_slot = enable_slot,
+ .disable_slot = disable_slot,
+ .set_attention_status = set_attention_status,
+ .hardware_test = hardware_test,
+ .get_power_status = get_power_status,
+ .get_attention_status = get_attention_status,
+ .get_latch_status = get_latch_status,
+ .get_adapter_status = get_adapter_status,
+ .get_max_bus_speed = get_max_bus_speed,
+ .get_cur_bus_speed = get_cur_bus_speed,
};
@@ -90,15 +96,15 @@
static inline int slot_paranoia_check (struct slot *slot, const char *function)
{
if (!slot) {
- dbg("%s - slot == NULL", function);
+ dbg("%s - slot == NULL\n", function);
return -1;
}
if (slot->magic != SLOT_MAGIC) {
- dbg("%s - bad magic number for slot", function);
+ dbg("%s - bad magic number for slot\n", function);
return -1;
}
if (!slot->hotplug_slot) {
- dbg("%s - slot->hotplug_slot == NULL!", function);
+ dbg("%s - slot->hotplug_slot == NULL!\n", function);
return -1;
}
return 0;
@@ -106,16 +112,16 @@
static inline struct slot *get_slot (struct hotplug_slot *hotplug_slot, const char *function)
-{
+{
struct slot *slot;
if (!hotplug_slot) {
- dbg("%s - hotplug_slot == NULL", function);
+ dbg("%s - hotplug_slot == NULL\n", function);
return NULL;
}
slot = (struct slot *)hotplug_slot->private;
- if (slot_paranoia_check (slot, function))
+ if (slot_paranoia_check(slot, function))
return NULL;
return slot;
}
@@ -130,16 +136,16 @@
*/
static int enable_slot (struct hotplug_slot *hotplug_slot)
{
- struct slot *slot = get_slot (hotplug_slot, __FUNCTION__);
+ struct slot *slot = get_slot(hotplug_slot, __FUNCTION__);
int retval = 0;
-
+
if (slot == NULL)
return -ENODEV;
- dbg ("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
/* enable the specified slot */
- retval = acpiphp_enable_slot (slot->acpi_slot);
+ retval = acpiphp_enable_slot(slot->acpi_slot);
return retval;
}
@@ -154,16 +160,16 @@
*/
static int disable_slot (struct hotplug_slot *hotplug_slot)
{
- struct slot *slot = get_slot (hotplug_slot, __FUNCTION__);
+ struct slot *slot = get_slot(hotplug_slot, __FUNCTION__);
int retval = 0;
if (slot == NULL)
return -ENODEV;
-
- dbg ("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name);
+
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
/* disable the specified slot */
- retval = acpiphp_disable_slot (slot->acpi_slot);
+ retval = acpiphp_disable_slot(slot->acpi_slot);
return retval;
}
@@ -180,8 +186,8 @@
static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status)
{
int retval = 0;
-
- dbg ("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name);
+
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
switch (status) {
case 0:
@@ -208,15 +214,15 @@
*/
static int hardware_test (struct hotplug_slot *hotplug_slot, u32 value)
{
- struct slot *slot = get_slot (hotplug_slot, __FUNCTION__);
+ struct slot *slot = get_slot(hotplug_slot, __FUNCTION__);
int retval = 0;
-
+
if (slot == NULL)
return -ENODEV;
-
- dbg ("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name);
- err ("No hardware tests are defined for this driver");
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+
+ err("No hardware tests are defined for this driver\n");
retval = -ENODEV;
return retval;
@@ -234,15 +240,15 @@
*/
static int get_power_status (struct hotplug_slot *hotplug_slot, u8 *value)
{
- struct slot *slot = get_slot (hotplug_slot, __FUNCTION__);
+ struct slot *slot = get_slot(hotplug_slot, __FUNCTION__);
int retval = 0;
-
+
if (slot == NULL)
return -ENODEV;
-
- dbg("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name);
- *value = acpiphp_get_power_status (slot->acpi_slot);
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+
+ *value = acpiphp_get_power_status(slot->acpi_slot);
return retval;
}
@@ -258,8 +264,8 @@
static int get_attention_status (struct hotplug_slot *hotplug_slot, u8 *value)
{
int retval = 0;
-
- dbg("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name);
+
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
*value = hotplug_slot->info->attention_status;
@@ -278,15 +284,15 @@
*/
static int get_latch_status (struct hotplug_slot *hotplug_slot, u8 *value)
{
- struct slot *slot = get_slot (hotplug_slot, __FUNCTION__);
+ struct slot *slot = get_slot(hotplug_slot, __FUNCTION__);
int retval = 0;
-
+
if (slot == NULL)
return -ENODEV;
-
- dbg("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name);
- *value = acpiphp_get_latch_status (slot->acpi_slot);
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+
+ *value = acpiphp_get_latch_status(slot->acpi_slot);
return retval;
}
@@ -303,20 +309,48 @@
*/
static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value)
{
- struct slot *slot = get_slot (hotplug_slot, __FUNCTION__);
+ struct slot *slot = get_slot(hotplug_slot, __FUNCTION__);
int retval = 0;
-
+
if (slot == NULL)
return -ENODEV;
-
- dbg("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name);
- *value = acpiphp_get_adapter_status (slot->acpi_slot);
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+
+ *value = acpiphp_get_adapter_status(slot->acpi_slot);
return retval;
}
+/* return dummy value because ACPI doesn't provide any method... */
+static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
+{
+ struct slot *slot = get_slot(hotplug_slot, __FUNCTION__);
+
+ if (slot == NULL)
+ return -ENODEV;
+
+ *value = PCI_SPEED_UNKNOWN;
+
+ return 0;
+}
+
+
+/* return dummy value because ACPI doesn't provide any method... */
+static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
+{
+ struct slot *slot = get_slot(hotplug_slot, __FUNCTION__);
+
+ if (slot == NULL)
+ return -ENODEV;
+
+ *value = PCI_SPEED_UNKNOWN;
+
+ return 0;
+}
+
+
static int init_acpi (void)
{
int retval;
@@ -335,13 +369,6 @@
}
-static void exit_acpi (void)
-{
- /* deallocate internal data structures etc. */
- acpiphp_glue_exit();
-}
-
-
/**
* make_slot_name - make a slot name that appears in pcihpfs
* @slot: slot to name
@@ -349,7 +376,10 @@
*/
static void make_slot_name (struct slot *slot)
{
- snprintf (slot->hotplug_slot->name, SLOT_NAME_SIZE, "ACPI%x", slot->acpi_slot->sun);
+ snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "ACPI%d-%02x:%02x",
+ slot->acpi_slot->sun,
+ slot->acpi_slot->bridge->bus,
+ slot->acpi_slot->device);
}
/**
@@ -363,31 +393,31 @@
int i;
for (i = 0; i < num_slots; ++i) {
- slot = kmalloc (sizeof (struct slot), GFP_KERNEL);
+ slot = kmalloc(sizeof(struct slot), GFP_KERNEL);
if (!slot)
return -ENOMEM;
memset(slot, 0, sizeof(struct slot));
- slot->hotplug_slot = kmalloc (sizeof (struct hotplug_slot), GFP_KERNEL);
+ slot->hotplug_slot = kmalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
if (!slot->hotplug_slot) {
- kfree (slot);
+ kfree(slot);
return -ENOMEM;
}
- memset(slot->hotplug_slot, 0, sizeof (struct hotplug_slot));
+ memset(slot->hotplug_slot, 0, sizeof(struct hotplug_slot));
- slot->hotplug_slot->info = kmalloc (sizeof (struct hotplug_slot_info), GFP_KERNEL);
+ slot->hotplug_slot->info = kmalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL);
if (!slot->hotplug_slot->info) {
- kfree (slot->hotplug_slot);
- kfree (slot);
+ kfree(slot->hotplug_slot);
+ kfree(slot);
return -ENOMEM;
}
- memset(slot->hotplug_slot->info, 0, sizeof (struct hotplug_slot_info));
+ memset(slot->hotplug_slot->info, 0, sizeof(struct hotplug_slot_info));
- slot->hotplug_slot->name = kmalloc (SLOT_NAME_SIZE, GFP_KERNEL);
+ slot->hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, GFP_KERNEL);
if (!slot->hotplug_slot->name) {
- kfree (slot->hotplug_slot->info);
- kfree (slot->hotplug_slot);
- kfree (slot);
+ kfree(slot->hotplug_slot->info);
+ kfree(slot->hotplug_slot);
+ kfree(slot);
return -ENOMEM;
}
@@ -397,26 +427,27 @@
slot->hotplug_slot->private = slot;
slot->hotplug_slot->ops = &acpi_hotplug_slot_ops;
- slot->acpi_slot = get_slot_from_id (i);
+ slot->acpi_slot = get_slot_from_id(i);
slot->hotplug_slot->info->power_status = acpiphp_get_power_status(slot->acpi_slot);
slot->hotplug_slot->info->attention_status = acpiphp_get_attention_status(slot->acpi_slot);
slot->hotplug_slot->info->latch_status = acpiphp_get_latch_status(slot->acpi_slot);
slot->hotplug_slot->info->adapter_status = acpiphp_get_adapter_status(slot->acpi_slot);
- make_slot_name (slot);
+ make_slot_name(slot);
- retval = pci_hp_register (slot->hotplug_slot);
+ retval = pci_hp_register(slot->hotplug_slot);
if (retval) {
- err ("pci_hp_register failed with error %d", retval);
- kfree (slot->hotplug_slot->info);
- kfree (slot->hotplug_slot->name);
- kfree (slot->hotplug_slot);
- kfree (slot);
+ err("pci_hp_register failed with error %d\n", retval);
+ kfree(slot->hotplug_slot->info);
+ kfree(slot->hotplug_slot->name);
+ kfree(slot->hotplug_slot);
+ kfree(slot);
return retval;
}
/* add slot to our internal list */
- list_add (&slot->slot_list, &slot_list);
+ list_add(&slot->slot_list, &slot_list);
+ info("Slot [%s] registered\n", slot->hotplug_slot->name);
}
return retval;
@@ -425,17 +456,17 @@
static void cleanup_slots (void)
{
- struct list_head *tmp;
+ struct list_head *tmp, *n;
struct slot *slot;
- list_for_each (tmp, &slot_list) {
- slot = list_entry (tmp, struct slot, slot_list);
- list_del (&slot->slot_list);
- pci_hp_deregister (slot->hotplug_slot);
- kfree (slot->hotplug_slot->info);
- kfree (slot->hotplug_slot->name);
- kfree (slot->hotplug_slot);
- kfree (slot);
+ list_for_each_safe (tmp, n, &slot_list) {
+ slot = list_entry(tmp, struct slot, slot_list);
+ list_del(&slot->slot_list);
+ pci_hp_deregister(slot->hotplug_slot);
+ kfree(slot->hotplug_slot->info);
+ kfree(slot->hotplug_slot->name);
+ kfree(slot->hotplug_slot);
+ kfree(slot);
}
return;
@@ -446,6 +477,10 @@
{
int retval;
+ info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
+
+ acpiphp_debug = debug;
+
/* read all the ACPI info from the system */
retval = init_acpi();
if (retval)
@@ -455,7 +490,6 @@
if (retval)
return retval;
- info (DRIVER_DESC " version: " DRIVER_VERSION);
return 0;
}
@@ -463,7 +497,8 @@
static void __exit acpiphp_exit(void)
{
cleanup_slots();
- exit_acpi();
+ /* deallocate internal data structures etc. */
+ acpiphp_glue_exit();
}
module_init(acpiphp_init);
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