mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 18:30:06 +00:00
![Rafael J. Wysocki](/assets/img/avatar_default.png)
pnp_lock is a spinlock, but it is only acquired from process context, so it may be a mutex just fine. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
186 lines
5.8 KiB
C
186 lines
5.8 KiB
C
/*
|
|
* 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[];
|
|
void *pnp_alloc(long size);
|
|
|
|
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
|