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path: root/drivers/pci/hotplug/pciehp_ctrl.c
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Diffstat (limited to 'drivers/pci/hotplug/pciehp_ctrl.c')
-rw-r--r--drivers/pci/hotplug/pciehp_ctrl.c56
1 files changed, 13 insertions, 43 deletions
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index b60e4973289c..dcfbfffa17c6 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -27,15 +27,9 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/wait.h>
#include <linux/smp_lock.h>
#include <linux/pci.h>
#include "../pci.h"
@@ -64,10 +58,9 @@ u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
taskInfo = &(ctrl->event_queue[ctrl->next_event]);
p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
- p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
- ctrl->next_event = (ctrl->next_event + 1) % 10;
+ ctrl->next_event = (ctrl->next_event + 1) % MAX_EVENTS;
taskInfo->hp_slot = hp_slot;
rc++;
@@ -118,12 +111,11 @@ u8 pciehp_handle_switch_change(u8 hp_slot, void *inst_id)
* what to do
*/
taskInfo = &(ctrl->event_queue[ctrl->next_event]);
- ctrl->next_event = (ctrl->next_event + 1) % 10;
+ ctrl->next_event = (ctrl->next_event + 1) % MAX_EVENTS;
taskInfo->hp_slot = hp_slot;
rc++;
p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
- p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (getstatus) {
@@ -131,14 +123,12 @@ u8 pciehp_handle_switch_change(u8 hp_slot, void *inst_id)
* Switch opened
*/
info("Latch open on Slot(%d)\n", ctrl->first_slot + hp_slot);
- p_slot->switch_save = 0;
taskInfo->event_type = INT_SWITCH_OPEN;
} else {
/*
* Switch closed
*/
info("Latch close on Slot(%d)\n", ctrl->first_slot + hp_slot);
- p_slot->switch_save = 0x10;
taskInfo->event_type = INT_SWITCH_CLOSE;
}
@@ -152,7 +142,7 @@ u8 pciehp_handle_presence_change(u8 hp_slot, void *inst_id)
{
struct controller *ctrl = (struct controller *) inst_id;
struct slot *p_slot;
- u8 rc = 0;
+ u8 presence_save, rc = 0;
struct event_info *taskInfo;
/* Presence Change */
@@ -162,7 +152,7 @@ u8 pciehp_handle_presence_change(u8 hp_slot, void *inst_id)
* what to do
*/
taskInfo = &(ctrl->event_queue[ctrl->next_event]);
- ctrl->next_event = (ctrl->next_event + 1) % 10;
+ ctrl->next_event = (ctrl->next_event + 1) % MAX_EVENTS;
taskInfo->hp_slot = hp_slot;
rc++;
@@ -171,8 +161,8 @@ u8 pciehp_handle_presence_change(u8 hp_slot, void *inst_id)
/* Switch is open, assume a presence change
* Save the presence state
*/
- p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
- if (p_slot->presence_save) {
+ p_slot->hpc_ops->get_adapter_status(p_slot, &presence_save);
+ if (presence_save) {
/*
* Card Present
*/
@@ -206,7 +196,7 @@ u8 pciehp_handle_power_fault(u8 hp_slot, void *inst_id)
* what to do
*/
taskInfo = &(ctrl->event_queue[ctrl->next_event]);
- ctrl->next_event = (ctrl->next_event + 1) % 10;
+ ctrl->next_event = (ctrl->next_event + 1) % MAX_EVENTS;
taskInfo->hp_slot = hp_slot;
rc++;
@@ -279,11 +269,10 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
* Configures board
*
*/
-static u32 board_added(struct slot *p_slot)
+static int board_added(struct slot *p_slot)
{
u8 hp_slot;
- u32 temp_register = 0xFFFFFFFF;
- u32 rc = 0;
+ int rc = 0;
struct controller *ctrl = p_slot->ctrl;
hp_slot = p_slot->device - ctrl->slot_device_offset;
@@ -333,8 +322,6 @@ static u32 board_added(struct slot *p_slot)
/* Check for a power fault */
if (p_slot->status == 0xFF) {
/* power fault occurred, but it was benign */
- temp_register = 0xFFFFFFFF;
- dbg("%s: temp register set to %x by power fault\n", __FUNCTION__, temp_register);
rc = POWER_FAILURE;
p_slot->status = 0;
goto err_exit;
@@ -348,8 +335,6 @@ static u32 board_added(struct slot *p_slot)
}
p_slot->status = 0;
- p_slot->switch_save = 0x10;
- p_slot->is_a_board = 0x01;
/*
* Some PCI Express root ports require fixup after hot-plug operation.
@@ -380,11 +365,11 @@ err_exit:
* remove_board - Turns off slot and LED's
*
*/
-static u32 remove_board(struct slot *p_slot)
+static int remove_board(struct slot *p_slot)
{
u8 device;
u8 hp_slot;
- u32 rc;
+ int rc;
struct controller *ctrl = p_slot->ctrl;
if (pciehp_unconfigure_device(p_slot))
@@ -398,9 +383,7 @@ static u32 remove_board(struct slot *p_slot)
dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot);
/* Change status to shutdown */
- if (p_slot->is_a_board)
- p_slot->status = 0x01;
- p_slot->configured = 0;
+ p_slot->status = 0x01;
/* Wait for exclusive access to hardware */
down(&ctrl->crit_sect);
@@ -428,9 +411,6 @@ static u32 remove_board(struct slot *p_slot)
/* Done with exclusive hardware access */
up(&ctrl->crit_sect);
- p_slot->switch_save = 0x10;
- p_slot->is_a_board = 0;
-
return 0;
}
@@ -633,7 +613,7 @@ static void interrupt_event_handler(struct controller *ctrl)
while (change) {
change = 0;
- for (loop = 0; loop < 10; loop++) {
+ for (loop = 0; loop < MAX_EVENTS; loop++) {
if (ctrl->event_queue[loop].event_type != 0) {
hp_slot = ctrl->event_queue[loop].hp_slot;
@@ -816,21 +796,11 @@ int pciehp_enable_slot(struct slot *p_slot)
}
up(&p_slot->ctrl->crit_sect);
- p_slot->configured = 0;
- p_slot->is_a_board = 1;
-
- /* We have to save the presence info for these slots */
- p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
- p_slot->switch_save = !getstatus? 0x10:0;
rc = board_added(p_slot);
if (rc) {
- /* We have to save the presence info for these slots */
- p_slot->hpc_ops->get_adapter_status(p_slot,
- &(p_slot->presence_save));
p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
- p_slot->switch_save = !getstatus? 0x10:0;
}
if (p_slot)
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-11 22:11:40 +0300