diff options
Diffstat (limited to 'drivers/pci/hotplug/pciehp.h')
| -rw-r--r-- | drivers/pci/hotplug/pciehp.h | 194 |
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) |