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-rw-r--r--drivers/pnp/base.h186
1 files changed, 186 insertions, 0 deletions
diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
new file mode 100644
index 0000000000..e74a0f6a31
--- /dev/null
+++ b/drivers/pnp/base.h
@@ -0,0 +1,186 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
+ */
+
+extern struct mutex pnp_lock;
+extern const struct attribute_group *pnp_dev_groups[];
+
+int pnp_register_protocol(struct pnp_protocol *protocol);
+void pnp_unregister_protocol(struct pnp_protocol *protocol);
+
+#define PNP_EISA_ID_MASK 0x7fffffff
+void pnp_eisa_id_to_string(u32 id, char *str);
+struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *, int id,
+ const char *pnpid);
+struct pnp_card *pnp_alloc_card(struct pnp_protocol *, int id, char *pnpid);
+
+int pnp_add_device(struct pnp_dev *dev);
+struct pnp_id *pnp_add_id(struct pnp_dev *dev, const char *id);
+
+int pnp_add_card(struct pnp_card *card);
+void pnp_remove_card(struct pnp_card *card);
+int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev);
+void pnp_remove_card_device(struct pnp_dev *dev);
+
+struct pnp_port {
+ resource_size_t min; /* min base number */
+ resource_size_t max; /* max base number */
+ resource_size_t align; /* align boundary */
+ resource_size_t size; /* size of range */
+ unsigned char flags; /* port flags */
+};
+
+#define PNP_IRQ_NR 256
+typedef struct { DECLARE_BITMAP(bits, PNP_IRQ_NR); } pnp_irq_mask_t;
+
+struct pnp_irq {
+ pnp_irq_mask_t map; /* bitmap for IRQ lines */
+ unsigned char flags; /* IRQ flags */
+};
+
+struct pnp_dma {
+ unsigned char map; /* bitmask for DMA channels */
+ unsigned char flags; /* DMA flags */
+};
+
+struct pnp_mem {
+ resource_size_t min; /* min base number */
+ resource_size_t max; /* max base number */
+ resource_size_t align; /* align boundary */
+ resource_size_t size; /* size of range */
+ unsigned char flags; /* memory flags */
+};
+
+#define PNP_OPTION_DEPENDENT 0x80000000
+#define PNP_OPTION_SET_MASK 0xffff
+#define PNP_OPTION_SET_SHIFT 12
+#define PNP_OPTION_PRIORITY_MASK 0xfff
+#define PNP_OPTION_PRIORITY_SHIFT 0
+
+#define PNP_RES_PRIORITY_PREFERRED 0
+#define PNP_RES_PRIORITY_ACCEPTABLE 1
+#define PNP_RES_PRIORITY_FUNCTIONAL 2
+#define PNP_RES_PRIORITY_INVALID PNP_OPTION_PRIORITY_MASK
+
+struct pnp_option {
+ struct list_head list;
+ unsigned int flags; /* independent/dependent, set, priority */
+
+ unsigned long type; /* IORESOURCE_{IO,MEM,IRQ,DMA} */
+ union {
+ struct pnp_port port;
+ struct pnp_irq irq;
+ struct pnp_dma dma;
+ struct pnp_mem mem;
+ } u;
+};
+
+int pnp_register_irq_resource(struct pnp_dev *dev, unsigned int option_flags,
+ pnp_irq_mask_t *map, unsigned char flags);
+int pnp_register_dma_resource(struct pnp_dev *dev, unsigned int option_flags,
+ unsigned char map, unsigned char flags);
+int pnp_register_port_resource(struct pnp_dev *dev, unsigned int option_flags,
+ resource_size_t min, resource_size_t max,
+ resource_size_t align, resource_size_t size,
+ unsigned char flags);
+int pnp_register_mem_resource(struct pnp_dev *dev, unsigned int option_flags,
+ resource_size_t min, resource_size_t max,
+ resource_size_t align, resource_size_t size,
+ unsigned char flags);
+
+static inline int pnp_option_is_dependent(struct pnp_option *option)
+{
+ return option->flags & PNP_OPTION_DEPENDENT ? 1 : 0;
+}
+
+static inline unsigned int pnp_option_set(struct pnp_option *option)
+{
+ return (option->flags >> PNP_OPTION_SET_SHIFT) & PNP_OPTION_SET_MASK;
+}
+
+static inline unsigned int pnp_option_priority(struct pnp_option *option)
+{
+ return (option->flags >> PNP_OPTION_PRIORITY_SHIFT) &
+ PNP_OPTION_PRIORITY_MASK;
+}
+
+static inline unsigned int pnp_new_dependent_set(struct pnp_dev *dev,
+ int priority)
+{
+ unsigned int flags;
+
+ if (priority > PNP_RES_PRIORITY_FUNCTIONAL) {
+ dev_warn(&dev->dev, "invalid dependent option priority %d "
+ "clipped to %d", priority,
+ PNP_RES_PRIORITY_INVALID);
+ priority = PNP_RES_PRIORITY_INVALID;
+ }
+
+ flags = PNP_OPTION_DEPENDENT |
+ ((dev->num_dependent_sets & PNP_OPTION_SET_MASK) <<
+ PNP_OPTION_SET_SHIFT) |
+ ((priority & PNP_OPTION_PRIORITY_MASK) <<
+ PNP_OPTION_PRIORITY_SHIFT);
+
+ dev->num_dependent_sets++;
+
+ return flags;
+}
+
+char *pnp_option_priority_name(struct pnp_option *option);
+void dbg_pnp_show_option(struct pnp_dev *dev, struct pnp_option *option);
+
+void pnp_init_resources(struct pnp_dev *dev);
+
+void pnp_fixup_device(struct pnp_dev *dev);
+void pnp_free_options(struct pnp_dev *dev);
+int __pnp_add_device(struct pnp_dev *dev);
+void __pnp_remove_device(struct pnp_dev *dev);
+
+int pnp_check_port(struct pnp_dev *dev, struct resource *res);
+int pnp_check_mem(struct pnp_dev *dev, struct resource *res);
+int pnp_check_irq(struct pnp_dev *dev, struct resource *res);
+#ifdef CONFIG_ISA_DMA_API
+int pnp_check_dma(struct pnp_dev *dev, struct resource *res);
+#endif
+
+char *pnp_resource_type_name(struct resource *res);
+void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc);
+
+void pnp_free_resources(struct pnp_dev *dev);
+unsigned long pnp_resource_type(struct resource *res);
+
+struct pnp_resource {
+ struct list_head list;
+ struct resource res;
+};
+
+void pnp_free_resource(struct pnp_resource *pnp_res);
+
+struct pnp_resource *pnp_add_resource(struct pnp_dev *dev,
+ struct resource *res);
+struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
+ int flags);
+struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
+ int flags);
+struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
+ resource_size_t start,
+ resource_size_t end, int flags);
+struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
+ resource_size_t start,
+ resource_size_t end, int flags);
+struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev,
+ resource_size_t start,
+ resource_size_t end);
+
+extern int pnp_debug;
+
+#if defined(CONFIG_PNP_DEBUG_MESSAGES)
+#define pnp_dbg(dev, format, arg...) \
+ ({ if (pnp_debug) dev_printk(KERN_DEBUG, dev, format, ## arg); 0; })
+#else
+#define pnp_dbg(dev, format, arg...) \
+ ({ if (0) dev_printk(KERN_DEBUG, dev, format, ## arg); 0; })
+#endif