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path: root/drivers/pci/hotplug/cpqphp_ctrl.c
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Diffstat (limited to 'drivers/pci/hotplug/cpqphp_ctrl.c')
-rw-r--r--drivers/pci/hotplug/cpqphp_ctrl.c124
1 files changed, 38 insertions, 86 deletions
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index 771ed34b1819..55d2dc7e39ca 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -1282,9 +1282,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
u8 hp_slot;
u8 temp_byte;
u8 adapter_speed;
- u32 index;
u32 rc = 0;
- u32 src = 8;
hp_slot = func->device - ctrl->slot_device_offset;
@@ -1299,7 +1297,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
**********************************/
rc = CARD_FUNCTIONING;
} else {
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
/* turn on board without attaching to the bus */
enable_slot_power (ctrl, hp_slot);
@@ -1333,12 +1331,12 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
if (rc)
return rc;
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
slot_enable (ctrl, hp_slot);
green_LED_blink (ctrl, hp_slot);
@@ -1350,7 +1348,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
/* Wait for ~1 second because of hot plug spec */
long_delay(1*HZ);
@@ -1368,76 +1366,30 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
rc = cpqhp_configure_board(ctrl, func);
- if (rc || src) {
- /* If configuration fails, turn it off
- * Get slot won't work for devices behind
- * bridges, but in this case it will always be
- * called for the "base" bus/dev/func of an
- * adapter. */
+ /* If configuration fails, turn it off
+ * Get slot won't work for devices behind
+ * bridges, but in this case it will always be
+ * called for the "base" bus/dev/func of an
+ * adapter. */
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
- amber_LED_on (ctrl, hp_slot);
- green_LED_off (ctrl, hp_slot);
- slot_disable (ctrl, hp_slot);
-
- set_SOGO(ctrl);
-
- /* Wait for SOBS to be unset */
- wait_for_ctrl_irq (ctrl);
-
- up(&ctrl->crit_sect);
-
- if (rc)
- return rc;
- else
- return 1;
- }
-
- func->status = 0;
- func->switch_save = 0x10;
-
- index = 1;
- while (((func = cpqhp_slot_find(func->bus, func->device, index)) != NULL) && !rc) {
- rc |= cpqhp_configure_board(ctrl, func);
- index++;
- }
-
- if (rc) {
- /* If configuration fails, turn it off
- * Get slot won't work for devices behind
- * bridges, but in this case it will always be
- * called for the "base" bus/dev/func of an
- * adapter. */
-
- down(&ctrl->crit_sect);
-
- amber_LED_on (ctrl, hp_slot);
- green_LED_off (ctrl, hp_slot);
- slot_disable (ctrl, hp_slot);
-
- set_SOGO(ctrl);
-
- /* Wait for SOBS to be unset */
- wait_for_ctrl_irq (ctrl);
-
- up(&ctrl->crit_sect);
-
- return rc;
- }
- /* Done configuring so turn LED on full time */
-
- down(&ctrl->crit_sect);
-
- green_LED_on (ctrl, hp_slot);
+ amber_LED_on (ctrl, hp_slot);
+ green_LED_off (ctrl, hp_slot);
+ slot_disable (ctrl, hp_slot);
set_SOGO(ctrl);
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
- rc = 0;
+ mutex_unlock(&ctrl->crit_sect);
+
+ if (rc)
+ return rc;
+ else
+ return 1;
+
} else {
/* Something is wrong
@@ -1445,7 +1397,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
* in this case it will always be called for the "base"
* bus/dev/func of an adapter. */
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
amber_LED_on (ctrl, hp_slot);
green_LED_off (ctrl, hp_slot);
@@ -1456,7 +1408,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
}
}
@@ -1488,7 +1440,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
dbg("%s: func->device, slot_offset, hp_slot = %d, %d ,%d\n",
__FUNCTION__, func->device, ctrl->slot_device_offset, hp_slot);
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
/* turn on board without attaching to the bus */
enable_slot_power(ctrl, hp_slot);
@@ -1522,7 +1474,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq(ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
if (rc)
return rc;
@@ -1532,7 +1484,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
/* turn on board and blink green LED */
dbg("%s: before down\n", __FUNCTION__);
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
dbg("%s: after down\n", __FUNCTION__);
dbg("%s: before slot_enable\n", __FUNCTION__);
@@ -1553,7 +1505,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
dbg("%s: after wait_for_ctrl_irq\n", __FUNCTION__);
dbg("%s: before up\n", __FUNCTION__);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
dbg("%s: after up\n", __FUNCTION__);
/* Wait for ~1 second because of hot plug spec */
@@ -1607,7 +1559,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
cpqhp_resource_sort_and_combine(&(ctrl->bus_head));
if (rc) {
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
amber_LED_on (ctrl, hp_slot);
green_LED_off (ctrl, hp_slot);
@@ -1618,7 +1570,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
return rc;
} else {
cpqhp_save_slot_config(ctrl, func);
@@ -1640,7 +1592,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
}
} while (new_slot);
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
green_LED_on (ctrl, hp_slot);
@@ -1649,9 +1601,9 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
} else {
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
amber_LED_on (ctrl, hp_slot);
green_LED_off (ctrl, hp_slot);
@@ -1662,7 +1614,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
return rc;
}
@@ -1721,7 +1673,7 @@ static u32 remove_board(struct pci_func * func, u32 replace_flag, struct control
func->status = 0x01;
func->configured = 0;
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
green_LED_off (ctrl, hp_slot);
slot_disable (ctrl, hp_slot);
@@ -1736,7 +1688,7 @@ static u32 remove_board(struct pci_func * func, u32 replace_flag, struct control
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
if (!replace_flag && ctrl->add_support) {
while (func) {
@@ -1899,7 +1851,7 @@ static void interrupt_event_handler(struct controller *ctrl)
dbg("button cancel\n");
del_timer(&p_slot->task_event);
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
if (p_slot->state == BLINKINGOFF_STATE) {
/* slot is on */
@@ -1922,7 +1874,7 @@ static void interrupt_event_handler(struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
}
/*** button Released (No action on press...) */
else if (ctrl->event_queue[loop].event_type == INT_BUTTON_RELEASE) {
@@ -1937,7 +1889,7 @@ static void interrupt_event_handler(struct controller *ctrl)
p_slot->state = BLINKINGON_STATE;
info(msg_button_on, p_slot->number);
}
- down(&ctrl->crit_sect);
+ mutex_lock(&ctrl->crit_sect);
dbg("blink green LED and turn off amber\n");
@@ -1949,7 +1901,7 @@ static void interrupt_event_handler(struct controller *ctrl)
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- up(&ctrl->crit_sect);
+ mutex_unlock(&ctrl->crit_sect);
init_timer(&p_slot->task_event);
p_slot->hp_slot = hp_slot;
p_slot->ctrl = ctrl;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.