1 files changed, 119 insertions, 29 deletions

diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
index 886dac823ed..e3fa9a2d9a3 100644
--- a/drivers/pnp/base.h
+++ b/drivers/pnp/base.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ */
+
 extern spinlock_t pnp_lock;
 void *pnp_alloc(long size);
 
@@ -19,22 +24,118 @@ 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_option *pnp_build_option(int priority);
-struct pnp_option *pnp_register_independent_option(struct pnp_dev *dev);
-struct pnp_option *pnp_register_dependent_option(struct pnp_dev *dev,
-						 int priority);
-int pnp_register_irq_resource(struct pnp_dev *dev, struct pnp_option *option,
-			      struct pnp_irq *data);
-int pnp_register_dma_resource(struct pnp_dev *dev, struct pnp_option *option,
-			      struct pnp_dma *data);
-int pnp_register_port_resource(struct pnp_dev *dev, struct pnp_option *option,
-			       struct pnp_port *data);
-int pnp_register_mem_resource(struct pnp_dev *dev, struct pnp_option *option,
-			      struct pnp_mem *data);
+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_option(struct pnp_option *option);
+void pnp_free_options(struct pnp_dev *dev);
 int __pnp_add_device(struct pnp_dev *dev);
 void __pnp_remove_device(struct pnp_dev *dev);
 
@@ -43,29 +144,18 @@ int pnp_check_mem(struct pnp_dev *dev, struct resource *res);
 int pnp_check_irq(struct pnp_dev *dev, struct resource *res);
 int pnp_check_dma(struct pnp_dev *dev, struct resource *res);
 
+char *pnp_resource_type_name(struct resource *res);
 void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc);
 
-void pnp_init_resource(struct resource *res);
-
-struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
-					  unsigned int type, unsigned int num);
-
-#define PNP_MAX_PORT		40
-#define PNP_MAX_MEM		24
-#define PNP_MAX_IRQ		 2
-#define PNP_MAX_DMA		 2
+void pnp_free_resources(struct pnp_dev *dev);
+int pnp_resource_type(struct resource *res);
 
 struct pnp_resource {
+	struct list_head list;
 	struct resource res;
-	unsigned int index;		/* ISAPNP config register index */
 };
 
-struct pnp_resource_table {
-	struct pnp_resource port[PNP_MAX_PORT];
-	struct pnp_resource mem[PNP_MAX_MEM];
-	struct pnp_resource dma[PNP_MAX_DMA];
-	struct pnp_resource irq[PNP_MAX_IRQ];
-};
+void pnp_free_resource(struct pnp_resource *pnp_res);
 
 struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
 					  int flags);