diff options
Diffstat (limited to 'include/linux/pnp.h')
| -rw-r--r-- | include/linux/pnp.h | 146 |
1 files changed, 78 insertions, 68 deletions
diff --git a/include/linux/pnp.h b/include/linux/pnp.h index 63b128d512fb..1ce54b63085d 100644 --- a/include/linux/pnp.h +++ b/include/linux/pnp.h @@ -1,6 +1,8 @@ /* * Linux Plug and Play Support * Copyright by Adam Belay <ambx1@neo.rr.com> + * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. + * Bjorn Helgaas <bjorn.helgaas@hp.com> */ #ifndef _LINUX_PNP_H @@ -15,7 +17,6 @@ struct pnp_protocol; struct pnp_dev; -struct pnp_resource_table; /* * Resource Management @@ -24,7 +25,14 @@ struct resource *pnp_get_resource(struct pnp_dev *, unsigned int, unsigned int); static inline int pnp_resource_valid(struct resource *res) { - if (res && !(res->flags & IORESOURCE_UNSET)) + if (res) + return 1; + return 0; +} + +static inline int pnp_resource_enabled(struct resource *res) +{ + if (res && !(res->flags & IORESOURCE_DISABLED)) return 1; return 0; } @@ -40,19 +48,31 @@ static inline resource_size_t pnp_resource_len(struct resource *res) static inline resource_size_t pnp_port_start(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_IO, bar)->start; + struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar); + + if (pnp_resource_valid(res)) + return res->start; + return 0; } static inline resource_size_t pnp_port_end(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_IO, bar)->end; + struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar); + + if (pnp_resource_valid(res)) + return res->end; + return 0; } static inline unsigned long pnp_port_flags(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_IO, bar)->flags; + struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar); + + if (pnp_resource_valid(res)) + return res->flags; + return IORESOURCE_IO | IORESOURCE_AUTO; } static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar) @@ -63,25 +83,41 @@ static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar) static inline resource_size_t pnp_port_len(struct pnp_dev *dev, unsigned int bar) { - return pnp_resource_len(pnp_get_resource(dev, IORESOURCE_IO, bar)); + struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar); + + if (pnp_resource_valid(res)) + return pnp_resource_len(res); + return 0; } static inline resource_size_t pnp_mem_start(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_MEM, bar)->start; + struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar); + + if (pnp_resource_valid(res)) + return res->start; + return 0; } static inline resource_size_t pnp_mem_end(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_MEM, bar)->end; + struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar); + + if (pnp_resource_valid(res)) + return res->end; + return 0; } static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_MEM, bar)->flags; + struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar); + + if (pnp_resource_valid(res)) + return res->flags; + return IORESOURCE_MEM | IORESOURCE_AUTO; } static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar) @@ -92,18 +128,30 @@ static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar) static inline resource_size_t pnp_mem_len(struct pnp_dev *dev, unsigned int bar) { - return pnp_resource_len(pnp_get_resource(dev, IORESOURCE_MEM, bar)); + struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar); + + if (pnp_resource_valid(res)) + return pnp_resource_len(res); + return 0; } static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_IRQ, bar)->start; + struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar); + + if (pnp_resource_valid(res)) + return res->start; + return -1; } static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_IRQ, bar)->flags; + struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar); + + if (pnp_resource_valid(res)) + return res->flags; + return IORESOURCE_IRQ | IORESOURCE_AUTO; } static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar) @@ -114,12 +162,20 @@ static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar) static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_DMA, bar)->start; + struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar); + + if (pnp_resource_valid(res)) + return res->start; + return -1; } static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar) { - return pnp_get_resource(dev, IORESOURCE_DMA, bar)->flags; + struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar); + + if (pnp_resource_valid(res)) + return res->flags; + return IORESOURCE_DMA | IORESOURCE_AUTO; } static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar) @@ -128,57 +184,6 @@ static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar) } -#define PNP_PORT_FLAG_16BITADDR (1<<0) -#define PNP_PORT_FLAG_FIXED (1<<1) - -struct pnp_port { - unsigned short min; /* min base number */ - unsigned short max; /* max base number */ - unsigned char align; /* align boundary */ - unsigned char size; /* size of range */ - unsigned char flags; /* port flags */ - unsigned char pad; /* pad */ - struct pnp_port *next; /* next port */ -}; - -#define PNP_IRQ_NR 256 -struct pnp_irq { - DECLARE_BITMAP(map, PNP_IRQ_NR); /* bitmask for IRQ lines */ - unsigned char flags; /* IRQ flags */ - unsigned char pad; /* pad */ - struct pnp_irq *next; /* next IRQ */ -}; - -struct pnp_dma { - unsigned char map; /* bitmask for DMA channels */ - unsigned char flags; /* DMA flags */ - struct pnp_dma *next; /* next port */ -}; - -struct pnp_mem { - unsigned int min; /* min base number */ - unsigned int max; /* max base number */ - unsigned int align; /* align boundary */ - unsigned int size; /* size of range */ - unsigned char flags; /* memory flags */ - unsigned char pad; /* pad */ - struct pnp_mem *next; /* next memory resource */ -}; - -#define PNP_RES_PRIORITY_PREFERRED 0 -#define PNP_RES_PRIORITY_ACCEPTABLE 1 -#define PNP_RES_PRIORITY_FUNCTIONAL 2 -#define PNP_RES_PRIORITY_INVALID 65535 - -struct pnp_option { - unsigned short priority; /* priority */ - struct pnp_port *port; /* first port */ - struct pnp_irq *irq; /* first IRQ */ - struct pnp_dma *dma; /* first DMA */ - struct pnp_mem *mem; /* first memory resource */ - struct pnp_option *next; /* used to chain dependent resources */ -}; - /* * Device Management */ @@ -246,9 +251,9 @@ struct pnp_dev { int active; int capabilities; - struct pnp_option *independent; - struct pnp_option *dependent; - struct pnp_resource_table *res; + unsigned int num_dependent_sets; + struct list_head resources; + struct list_head options; char name[PNP_NAME_LEN]; /* contains a human-readable name */ int flags; /* used by protocols */ @@ -425,6 +430,8 @@ void pnp_unregister_card_driver(struct pnp_card_driver *drv); extern struct list_head pnp_cards; /* resource management */ +int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base, + resource_size_t size); int pnp_auto_config_dev(struct pnp_dev *dev); int pnp_start_dev(struct pnp_dev *dev); int pnp_stop_dev(struct pnp_dev *dev); @@ -452,6 +459,9 @@ static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { } /* resource management */ +static inline int pnp_possible_config(struct pnp_dev *dev, int type, + resource_size_t base, + resource_size_t size) { return 0; } static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; } static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; } static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; } |