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Diffstat (limited to 'include/linux/acpi.h')
-rw-r--r--include/linux/acpi.h153
1 files changed, 127 insertions, 26 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 1ae6ba06f9ac..82f56bb0214c 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -49,7 +49,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
return adev ? adev->handle : NULL;
}
-#define ACPI_COMPANION(dev) to_acpi_node((dev)->fwnode)
+#define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
#define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
acpi_fwnode_handle(adev) : NULL)
#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
@@ -69,7 +69,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
static inline bool has_acpi_companion(struct device *dev)
{
- return is_acpi_node(dev->fwnode);
+ return is_acpi_device_node(dev->fwnode);
}
static inline void acpi_preset_companion(struct device *dev,
@@ -131,6 +131,12 @@ static inline void acpi_initrd_override(void *data, size_t size)
(!entry) || (unsigned long)entry + sizeof(*entry) > end || \
((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
+struct acpi_subtable_proc {
+ int id;
+ acpi_tbl_entry_handler handler;
+ int count;
+};
+
char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
void __acpi_unmap_table(char *map, unsigned long size);
int early_acpi_boot_init(void);
@@ -146,9 +152,16 @@ int __init acpi_parse_entries(char *id, unsigned long table_size,
struct acpi_table_header *table_header,
int entry_id, unsigned int max_entries);
int __init acpi_table_parse_entries(char *id, unsigned long table_size,
- int entry_id,
- acpi_tbl_entry_handler handler,
- unsigned int max_entries);
+ int entry_id,
+ acpi_tbl_entry_handler handler,
+ unsigned int max_entries);
+int __init acpi_table_parse_entries(char *id, unsigned long table_size,
+ int entry_id,
+ acpi_tbl_entry_handler handler,
+ unsigned int max_entries);
+int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
+ struct acpi_subtable_proc *proc, int proc_num,
+ unsigned int max_entries);
int acpi_table_parse_madt(enum acpi_madt_type id,
acpi_tbl_entry_handler handler,
unsigned int max_entries);
@@ -468,7 +481,22 @@ static inline bool is_acpi_node(struct fwnode_handle *fwnode)
return false;
}
-static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
+static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
+{
+ return false;
+}
+
+static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
+{
+ return NULL;
+}
+
+static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
+{
+ return false;
+}
+
+static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
{
return NULL;
}
@@ -750,22 +778,76 @@ struct acpi_reference_args {
#ifdef CONFIG_ACPI
int acpi_dev_get_property(struct acpi_device *adev, const char *name,
acpi_object_type type, const union acpi_object **obj);
-int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
- acpi_object_type type,
- const union acpi_object **obj);
-int acpi_dev_get_property_reference(struct acpi_device *adev,
- const char *name, size_t index,
- struct acpi_reference_args *args);
-
-int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
- void **valptr);
+int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+ const char *name, size_t index,
+ struct acpi_reference_args *args);
+
+int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
+ void **valptr);
int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
enum dev_prop_type proptype, void *val);
+int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
+ enum dev_prop_type proptype, void *val, size_t nval);
int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
enum dev_prop_type proptype, void *val, size_t nval);
-struct acpi_device *acpi_get_next_child(struct device *dev,
- struct acpi_device *child);
+struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
+ struct fwnode_handle *subnode);
+
+struct acpi_probe_entry;
+typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
+ struct acpi_probe_entry *);
+
+#define ACPI_TABLE_ID_LEN 5
+
+/**
+ * struct acpi_probe_entry - boot-time probing entry
+ * @id: ACPI table name
+ * @type: Optional subtable type to match
+ * (if @id contains subtables)
+ * @subtable_valid: Optional callback to check the validity of
+ * the subtable
+ * @probe_table: Callback to the driver being probed when table
+ * match is successful
+ * @probe_subtbl: Callback to the driver being probed when table and
+ * subtable match (and optional callback is successful)
+ * @driver_data: Sideband data provided back to the driver
+ */
+struct acpi_probe_entry {
+ __u8 id[ACPI_TABLE_ID_LEN];
+ __u8 type;
+ acpi_probe_entry_validate_subtbl subtable_valid;
+ union {
+ acpi_tbl_table_handler probe_table;
+ acpi_tbl_entry_handler probe_subtbl;
+ };
+ kernel_ulong_t driver_data;
+};
+
+#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
+ static const struct acpi_probe_entry __acpi_probe_##name \
+ __used __section(__##table##_acpi_probe_table) \
+ = { \
+ .id = table_id, \
+ .type = subtable, \
+ .subtable_valid = valid, \
+ .probe_table = (acpi_tbl_table_handler)fn, \
+ .driver_data = data, \
+ }
+
+#define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
+#define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
+
+int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
+
+#define acpi_probe_device_table(t) \
+ ({ \
+ extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
+ ACPI_PROBE_TABLE_END(t); \
+ __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
+ (&ACPI_PROBE_TABLE_END(t) - \
+ &ACPI_PROBE_TABLE(t))); \
+ })
#else
static inline int acpi_dev_get_property(struct acpi_device *adev,
const char *name, acpi_object_type type,
@@ -773,16 +855,17 @@ static inline int acpi_dev_get_property(struct acpi_device *adev,
{
return -ENXIO;
}
-static inline int acpi_dev_get_property_array(struct acpi_device *adev,
- const char *name,
- acpi_object_type type,
- const union acpi_object **obj)
+
+static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+ const char *name, const char *cells_name,
+ size_t index, struct acpi_reference_args *args)
{
return -ENXIO;
}
-static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
- const char *name, const char *cells_name,
- size_t index, struct acpi_reference_args *args)
+
+static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
+ const char *propname,
+ void **valptr)
{
return -ENXIO;
}
@@ -802,6 +885,14 @@ static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
return -ENXIO;
}
+static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
+ const char *propname,
+ enum dev_prop_type proptype,
+ void *val, size_t nval)
+{
+ return -ENXIO;
+}
+
static inline int acpi_dev_prop_read(struct acpi_device *adev,
const char *propname,
enum dev_prop_type proptype,
@@ -810,12 +901,22 @@ static inline int acpi_dev_prop_read(struct acpi_device *adev,
return -ENXIO;
}
-static inline struct acpi_device *acpi_get_next_child(struct device *dev,
- struct acpi_device *child)
+static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
+ struct fwnode_handle *subnode)
{
return NULL;
}
+#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
+ static const void * __acpi_table_##name[] \
+ __attribute__((unused)) \
+ = { (void *) table_id, \
+ (void *) subtable, \
+ (void *) valid, \
+ (void *) fn, \
+ (void *) data }
+
+#define acpi_probe_device_table(t) ({ int __r = 0; __r;})
#endif
#endif /*_LINUX_ACPI_H*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 15:49:27 +0000