PCI ACPI: Rework PCI handling of wake-up

[linux-2.6-omap-h63xx.git] / drivers / pci / pci.h

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index eabeb1f2ec998b0cf39de823b7c0bfd7a237b6ba..b08dfc9746afea97ec7e31b070605bbab61771e6 100644 (file)
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -5,11 +5,36 @@ extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
 extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
 extern void pci_cleanup_rom(struct pci_dev *dev);
 
-/* Firmware callbacks */
-extern pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev,
-                                               pm_message_t state);
-extern int (*platform_pci_set_power_state)(struct pci_dev *dev,
-                                               pci_power_t state);
+/**
+ * Firmware PM callbacks
+ *
+ * @is_manageable - returns 'true' if given device is power manageable by the
+ *                  platform firmware
+ *
+ * @set_state - invokes the platform firmware to set the device's power state
+ *
+ * @choose_state - returns PCI power state of given device preferred by the
+ *                 platform; to be used during system-wide transitions from a
+ *                 sleeping state to the working state and vice versa
+ *
+ * @can_wakeup - returns 'true' if given device is capable of waking up the
+ *               system from a sleeping state
+ *
+ * @sleep_wake - enables/disables the system wake up capability of given device
+ *
+ * If given platform is generally capable of power managing PCI devices, all of
+ * these callbacks are mandatory.
+ */
+struct pci_platform_pm_ops {
+       bool (*is_manageable)(struct pci_dev *dev);
+       int (*set_state)(struct pci_dev *dev, pci_power_t state);
+       pci_power_t (*choose_state)(struct pci_dev *dev);
+       bool (*can_wakeup)(struct pci_dev *dev);
+       int (*sleep_wake)(struct pci_dev *dev, bool enable);
+};
+
+extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
+extern void pci_pm_init(struct pci_dev *dev);
 
 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
@@ -18,6 +43,25 @@ extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
 
+struct pci_vpd_ops {
+       int (*read)(struct pci_dev *dev, int pos, int size, char *buf);
+       int (*write)(struct pci_dev *dev, int pos, int size, const char *buf);
+       int (*get_size)(struct pci_dev *dev);
+       void (*release)(struct pci_dev *dev);
+};
+
+struct pci_vpd {
+       struct pci_vpd_ops *ops;
+       struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
+};
+
+extern int pci_vpd_pci22_init(struct pci_dev *dev);
+static inline void pci_vpd_release(struct pci_dev *dev)
+{
+       if (dev->vpd)
+               dev->vpd->ops->release(dev);
+}
+
 /* PCI /proc functions */
 #ifdef CONFIG_PROC_FS
 extern int pci_proc_attach_device(struct pci_dev *dev);
@@ -87,3 +131,16 @@ pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
 }
 
 struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);
+
+/* PCI slot sysfs helper code */
+#define to_pci_slot(s) container_of(s, struct pci_slot, kobj)
+
+extern struct kset *pci_slots_kset;
+
+struct pci_slot_attribute {
+       struct attribute attr;
+       ssize_t (*show)(struct pci_slot *, char *);
+       ssize_t (*store)(struct pci_slot *, const char *, size_t);
+};
+#define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr)
+