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path: root/drivers/pci/hotplug/pciehp.h
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Diffstat (limited to 'drivers/pci/hotplug/pciehp.h')
-rw-r--r--drivers/pci/hotplug/pciehp.h194
1 files changed, 57 insertions, 137 deletions
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 4fb12fc..d19fcae 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -44,15 +44,20 @@ extern int pciehp_poll_time;
extern int pciehp_debug;
extern int pciehp_force;
-/*#define dbg(format, arg...) do { if (pciehp_debug) printk(KERN_DEBUG "%s: " format, MY_NAME , ## arg); } while (0)*/
-#define dbg(format, arg...) do { if (pciehp_debug) printk("%s: " format, MY_NAME , ## arg); } while (0)
-#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
-#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
-#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
-
+#define dbg(format, arg...) \
+ do { \
+ if (pciehp_debug) \
+ printk("%s: " format, MY_NAME , ## arg); \
+ } while (0)
+#define err(format, arg...) \
+ printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
+#define info(format, arg...) \
+ printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
+#define warn(format, arg...) \
+ printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
+#define SLOT_NAME_SIZE 10
struct slot {
- struct slot *next;
u8 bus;
u8 device;
u32 number;
@@ -63,6 +68,8 @@ struct slot {
struct hpc_ops *hpc_ops;
struct hotplug_slot *hotplug_slot;
struct list_head slot_list;
+ char name[SLOT_NAME_SIZE];
+ unsigned long last_emi_toggle;
};
struct event_info {
@@ -70,34 +77,15 @@ struct event_info {
u8 hp_slot;
};
-typedef u8(*php_intr_callback_t) (u8 hp_slot, void *instance_id);
-
-struct php_ctlr_state_s {
- struct php_ctlr_state_s *pnext;
- struct pci_dev *pci_dev;
- unsigned int irq;
- unsigned long flags; /* spinlock's */
- u32 slot_device_offset;
- u32 num_slots;
- struct timer_list int_poll_timer; /* Added for poll event */
- php_intr_callback_t attention_button_callback;
- php_intr_callback_t switch_change_callback;
- php_intr_callback_t presence_change_callback;
- php_intr_callback_t power_fault_callback;
- void *callback_instance_id;
- struct ctrl_reg *creg; /* Ptr to controller register space */
-};
-
#define MAX_EVENTS 10
struct controller {
struct controller *next;
struct mutex crit_sect; /* critical section mutex */
struct mutex ctrl_lock; /* controller lock */
- struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */
int num_slots; /* Number of slots on ctlr */
int slot_num_inc; /* 1 or -1 */
struct pci_dev *pci_dev;
- struct pci_bus *pci_bus;
+ struct list_head slot_list;
struct event_info event_queue[MAX_EVENTS];
struct slot *slot;
struct hpc_ops *hpc_ops;
@@ -112,6 +100,8 @@ struct controller {
u8 ctrlcap;
u16 vendor_id;
u8 cap_base;
+ struct timer_list poll_timer;
+ volatile int cmd_busy;
};
#define INT_BUTTON_IGNORE 0
@@ -131,8 +121,6 @@ struct controller {
#define POWERON_STATE 3
#define POWEROFF_STATE 4
-#define PCI_TO_PCI_BRIDGE_CLASS 0x00060400
-
/* Error messages */
#define INTERLOCK_OPEN 0x00000002
#define ADD_NOT_SUPPORTED 0x00000003
@@ -144,10 +132,6 @@ struct controller {
#define WRONG_BUS_FREQUENCY 0x0000000D
#define POWER_FAILURE 0x0000000E
-#define REMOVE_NOT_SUPPORTED 0x00000003
-
-#define DISABLE_CARD 1
-
/* Field definitions in Slot Capabilities Register */
#define ATTN_BUTTN_PRSN 0x00000001
#define PWR_CTRL_PRSN 0x00000002
@@ -155,6 +139,7 @@ struct controller {
#define ATTN_LED_PRSN 0x00000008
#define PWR_LED_PRSN 0x00000010
#define HP_SUPR_RM_SUP 0x00000020
+#define EMI_PRSN 0x00020000
#define ATTN_BUTTN(cap) (cap & ATTN_BUTTN_PRSN)
#define POWER_CTRL(cap) (cap & PWR_CTRL_PRSN)
@@ -162,130 +147,65 @@ struct controller {
#define ATTN_LED(cap) (cap & ATTN_LED_PRSN)
#define PWR_LED(cap) (cap & PWR_LED_PRSN)
#define HP_SUPR_RM(cap) (cap & HP_SUPR_RM_SUP)
-
-/*
- * error Messages
- */
-#define msg_initialization_err "Initialization failure, error=%d\n"
-#define msg_button_on "PCI slot #%s - powering on due to button press.\n"
-#define msg_button_off "PCI slot #%s - powering off due to button press.\n"
-#define msg_button_cancel "PCI slot #%s - action canceled due to button press.\n"
-#define msg_button_ignore "PCI slot #%s - button press ignored. (action in progress...)\n"
-
-/* controller functions */
-extern int pciehp_event_start_thread (void);
-extern void pciehp_event_stop_thread (void);
-extern int pciehp_enable_slot (struct slot *slot);
-extern int pciehp_disable_slot (struct slot *slot);
-
-extern u8 pciehp_handle_attention_button (u8 hp_slot, void *inst_id);
-extern u8 pciehp_handle_switch_change (u8 hp_slot, void *inst_id);
-extern u8 pciehp_handle_presence_change (u8 hp_slot, void *inst_id);
-extern u8 pciehp_handle_power_fault (u8 hp_slot, void *inst_id);
-/* extern void long_delay (int delay); */
-
-/* pci functions */
-extern int pciehp_configure_device (struct slot *p_slot);
-extern int pciehp_unconfigure_device (struct slot *p_slot);
-
-
+#define EMI(cap) (cap & EMI_PRSN)
+
+extern int pciehp_event_start_thread(void);
+extern void pciehp_event_stop_thread(void);
+extern int pciehp_enable_slot(struct slot *slot);
+extern int pciehp_disable_slot(struct slot *slot);
+extern u8 pciehp_handle_attention_button(u8 hp_slot, struct controller *ctrl);
+extern u8 pciehp_handle_switch_change(u8 hp_slot, struct controller *ctrl);
+extern u8 pciehp_handle_presence_change(u8 hp_slot, struct controller *ctrl);
+extern u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl);
+extern int pciehp_configure_device(struct slot *p_slot);
+extern int pciehp_unconfigure_device(struct slot *p_slot);
+int pcie_init(struct controller *ctrl, struct pcie_device *dev);
/* Global variables */
extern struct controller *pciehp_ctrl_list;
-/* Inline functions */
-
static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device)
{
- struct slot *p_slot, *tmp_slot = NULL;
-
- p_slot = ctrl->slot;
+ struct slot *slot;
- while (p_slot && (p_slot->device != device)) {
- tmp_slot = p_slot;
- p_slot = p_slot->next;
+ list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
+ if (slot->device == device)
+ return slot;
}
- if (p_slot == NULL) {
- err("ERROR: pciehp_find_slot device=0x%x\n", device);
- p_slot = tmp_slot;
- }
-
- return p_slot;
-}
-
-static inline int wait_for_ctrl_irq(struct controller *ctrl)
-{
- int retval = 0;
-
- DECLARE_WAITQUEUE(wait, current);
-
- add_wait_queue(&ctrl->queue, &wait);
- if (!pciehp_poll_mode)
- /* Sleep for up to 1 second */
- msleep_interruptible(1000);
- else
- msleep_interruptible(2500);
-
- remove_wait_queue(&ctrl->queue, &wait);
- if (signal_pending(current))
- retval = -EINTR;
-
- return retval;
-}
-
-#define SLOT_NAME_SIZE 10
-static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot)
-{
- snprintf(buffer, buffer_size, "%04d_%04d", slot->bus, slot->number);
+ err("%s: slot (device=0x%x) not found\n", __FUNCTION__, device);
+ return NULL;
}
-enum php_ctlr_type {
- PCI,
- ISA,
- ACPI
-};
-
-int pcie_init(struct controller *ctrl, struct pcie_device *dev);
-
-/* This has no meaning for PCI Express, as there is only 1 slot per port */
-int pcie_get_ctlr_slot_config(struct controller *ctrl,
- int *num_ctlr_slots,
- int *first_device_num,
- int *physical_slot_num,
- u8 *ctrlcap);
-
struct hpc_ops {
- int (*power_on_slot) (struct slot *slot);
- int (*power_off_slot) (struct slot *slot);
- int (*get_power_status) (struct slot *slot, u8 *status);
- int (*get_attention_status) (struct slot *slot, u8 *status);
- int (*set_attention_status) (struct slot *slot, u8 status);
- int (*get_latch_status) (struct slot *slot, u8 *status);
- int (*get_adapter_status) (struct slot *slot, u8 *status);
-
- int (*get_max_bus_speed) (struct slot *slot, enum pci_bus_speed *speed);
- int (*get_cur_bus_speed) (struct slot *slot, enum pci_bus_speed *speed);
-
- int (*get_max_lnk_width) (struct slot *slot, enum pcie_link_width *value);
- int (*get_cur_lnk_width) (struct slot *slot, enum pcie_link_width *value);
-
- int (*query_power_fault) (struct slot *slot);
- void (*green_led_on) (struct slot *slot);
- void (*green_led_off) (struct slot *slot);
- void (*green_led_blink) (struct slot *slot);
- void (*release_ctlr) (struct controller *ctrl);
- int (*check_lnk_status) (struct controller *ctrl);
+ int (*power_on_slot)(struct slot *slot);
+ int (*power_off_slot)(struct slot *slot);
+ int (*get_power_status)(struct slot *slot, u8 *status);
+ int (*get_attention_status)(struct slot *slot, u8 *status);
+ int (*set_attention_status)(struct slot *slot, u8 status);
+ int (*get_latch_status)(struct slot *slot, u8 *status);
+ int (*get_adapter_status)(struct slot *slot, u8 *status);
+ int (*get_emi_status)(struct slot *slot, u8 *status);
+ int (*toggle_emi)(struct slot *slot);
+ int (*get_max_bus_speed)(struct slot *slot, enum pci_bus_speed *speed);
+ int (*get_cur_bus_speed)(struct slot *slot, enum pci_bus_speed *speed);
+ int (*get_max_lnk_width)(struct slot *slot, enum pcie_link_width *val);
+ int (*get_cur_lnk_width)(struct slot *slot, enum pcie_link_width *val);
+ int (*query_power_fault)(struct slot *slot);
+ void (*green_led_on)(struct slot *slot);
+ void (*green_led_off)(struct slot *slot);
+ void (*green_led_blink)(struct slot *slot);
+ void (*release_ctlr)(struct controller *ctrl);
+ int (*check_lnk_status)(struct controller *ctrl);
};
-
#ifdef CONFIG_ACPI
#include <acpi/acpi.h>
#include <acpi/acpi_bus.h>
#include <acpi/actypes.h>
#include <linux/pci-acpi.h>
-#define pciehp_get_hp_hw_control_from_firmware(dev) \
+#define pciehp_get_hp_hw_control_from_firmware(dev) \
pciehp_acpi_get_hp_hw_control_from_firmware(dev)
static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev,
struct hotplug_params *hpp)