2005-04-17 06:20:36 +08:00
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extern spinlock_t pnp_lock;
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void *pnp_alloc(long size);
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2008-04-29 06:34:40 +08:00
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int pnp_register_protocol(struct pnp_protocol *protocol);
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void pnp_unregister_protocol(struct pnp_protocol *protocol);
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2008-04-29 06:33:53 +08:00
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#define PNP_EISA_ID_MASK 0x7fffffff
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void pnp_eisa_id_to_string(u32 id, char *str);
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2008-04-29 06:33:54 +08:00
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struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *, int id, char *pnpid);
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2008-04-29 06:33:58 +08:00
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struct pnp_card *pnp_alloc_card(struct pnp_protocol *, int id, char *pnpid);
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2008-04-29 06:34:40 +08:00
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int pnp_add_device(struct pnp_dev *dev);
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2008-04-29 06:33:52 +08:00
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struct pnp_id *pnp_add_id(struct pnp_dev *dev, char *id);
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2005-04-17 06:20:36 +08:00
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int pnp_interface_attach_device(struct pnp_dev *dev);
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2008-04-29 06:34:40 +08:00
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int pnp_add_card(struct pnp_card *card);
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struct pnp_id *pnp_add_card_id(struct pnp_card *card, char *id);
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void pnp_remove_card(struct pnp_card *card);
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int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev);
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void pnp_remove_card_device(struct pnp_dev *dev);
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2008-06-28 06:57:04 +08:00
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struct pnp_port {
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2008-06-28 06:57:06 +08:00
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resource_size_t min; /* min base number */
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resource_size_t max; /* max base number */
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resource_size_t align; /* align boundary */
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resource_size_t size; /* size of range */
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2008-06-28 06:57:04 +08:00
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unsigned char flags; /* port flags */
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unsigned char pad; /* pad */
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struct pnp_port *next; /* next port */
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};
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#define PNP_IRQ_NR 256
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2008-06-28 06:57:05 +08:00
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typedef struct { DECLARE_BITMAP(bits, PNP_IRQ_NR); } pnp_irq_mask_t;
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2008-06-28 06:57:04 +08:00
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struct pnp_irq {
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2008-06-28 06:57:05 +08:00
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pnp_irq_mask_t map; /* bitmap for IRQ lines */
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2008-06-28 06:57:04 +08:00
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unsigned char flags; /* IRQ flags */
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unsigned char pad; /* pad */
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struct pnp_irq *next; /* next IRQ */
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};
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struct pnp_dma {
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unsigned char map; /* bitmask for DMA channels */
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unsigned char flags; /* DMA flags */
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struct pnp_dma *next; /* next port */
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};
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struct pnp_mem {
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2008-06-28 06:57:06 +08:00
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resource_size_t min; /* min base number */
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resource_size_t max; /* max base number */
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resource_size_t align; /* align boundary */
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resource_size_t size; /* size of range */
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2008-06-28 06:57:04 +08:00
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unsigned char flags; /* memory flags */
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unsigned char pad; /* pad */
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struct pnp_mem *next; /* next memory resource */
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};
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#define PNP_RES_PRIORITY_PREFERRED 0
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#define PNP_RES_PRIORITY_ACCEPTABLE 1
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#define PNP_RES_PRIORITY_FUNCTIONAL 2
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#define PNP_RES_PRIORITY_INVALID 65535
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struct pnp_option {
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unsigned short priority; /* priority */
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struct pnp_port *port; /* first port */
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struct pnp_irq *irq; /* first IRQ */
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struct pnp_dma *dma; /* first DMA */
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struct pnp_mem *mem; /* first memory resource */
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struct pnp_option *next; /* used to chain dependent resources */
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};
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2008-05-15 07:05:34 +08:00
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struct pnp_option *pnp_build_option(int priority);
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2008-04-29 06:34:40 +08:00
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struct pnp_option *pnp_register_independent_option(struct pnp_dev *dev);
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struct pnp_option *pnp_register_dependent_option(struct pnp_dev *dev,
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int priority);
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int pnp_register_irq_resource(struct pnp_dev *dev, struct pnp_option *option,
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struct pnp_irq *data);
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int pnp_register_dma_resource(struct pnp_dev *dev, struct pnp_option *option,
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struct pnp_dma *data);
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int pnp_register_port_resource(struct pnp_dev *dev, struct pnp_option *option,
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struct pnp_port *data);
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int pnp_register_mem_resource(struct pnp_dev *dev, struct pnp_option *option,
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struct pnp_mem *data);
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void pnp_init_resources(struct pnp_dev *dev);
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2005-04-17 06:20:36 +08:00
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void pnp_fixup_device(struct pnp_dev *dev);
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void pnp_free_option(struct pnp_option *option);
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int __pnp_add_device(struct pnp_dev *dev);
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void __pnp_remove_device(struct pnp_dev *dev);
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2008-04-29 06:34:22 +08:00
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int pnp_check_port(struct pnp_dev *dev, struct resource *res);
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int pnp_check_mem(struct pnp_dev *dev, struct resource *res);
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int pnp_check_irq(struct pnp_dev *dev, struct resource *res);
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int pnp_check_dma(struct pnp_dev *dev, struct resource *res);
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2008-04-29 06:34:08 +08:00
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2008-06-28 06:56:55 +08:00
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char *pnp_resource_type_name(struct resource *res);
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2008-04-29 06:34:08 +08:00
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void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc);
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2008-04-29 06:34:13 +08:00
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PNP: replace pnp_resource_table with dynamically allocated resources
PNP used to have a fixed-size pnp_resource_table for tracking the
resources used by a device. This table often overflowed, so we've
had to increase the table size, which wastes memory because most
devices have very few resources.
This patch replaces the table with a linked list of resources where
the entries are allocated on demand.
This removes messages like these:
pnpacpi: exceeded the max number of IO resources
00:01: too many I/O port resources
References:
http://bugzilla.kernel.org/show_bug.cgi?id=9535
http://bugzilla.kernel.org/show_bug.cgi?id=9740
http://lkml.org/lkml/2007/11/30/110
This patch also changes the way PNP uses the IORESOURCE_UNSET,
IORESOURCE_AUTO, and IORESOURCE_DISABLED flags.
Prior to this patch, the pnp_resource_table entries used the flags
like this:
IORESOURCE_UNSET
This table entry is unused and available for use. When this flag
is set, we shouldn't look at anything else in the resource structure.
This flag is set when a resource table entry is initialized.
IORESOURCE_AUTO
This resource was assigned automatically by pnp_assign_{io,mem,etc}().
This flag is set when a resource table entry is initialized and
cleared whenever we discover a resource setting by reading an ISAPNP
config register, parsing a PNPBIOS resource data stream, parsing an
ACPI _CRS list, or interpreting a sysfs "set" command.
Resources marked IORESOURCE_AUTO are reinitialized and marked as
IORESOURCE_UNSET by pnp_clean_resource_table() in these cases:
- before we attempt to assign resources automatically,
- if we fail to assign resources automatically,
- after disabling a device
IORESOURCE_DISABLED
Set by pnp_assign_{io,mem,etc}() when automatic assignment fails.
Also set by PNPBIOS and PNPACPI for:
- invalid IRQs or GSI registration failures
- invalid DMA channels
- I/O ports above 0x10000
- mem ranges with negative length
After this patch, there is no pnp_resource_table, and the resource list
entries use the flags like this:
IORESOURCE_UNSET
This flag is no longer used in PNP. Instead of keeping
IORESOURCE_UNSET entries in the resource list, we remove
entries from the list and free them.
IORESOURCE_AUTO
No change in meaning: it still means the resource was assigned
automatically by pnp_assign_{port,mem,etc}(), but these functions
now set the bit explicitly.
We still "clean" a device's resource list in the same places,
but rather than reinitializing IORESOURCE_AUTO entries, we
just remove them from the list.
Note that IORESOURCE_AUTO entries are always at the end of the
list, so removing them doesn't reorder other list entries.
This is because non-IORESOURCE_AUTO entries are added by the
ISAPNP, PNPBIOS, or PNPACPI "get resources" methods and by the
sysfs "set" command. In each of these cases, we completely free
the resource list first.
IORESOURCE_DISABLED
In addition to the cases where we used to set this flag, ISAPNP now
adds an IORESOURCE_DISABLED resource when it reads a configuration
register with a "disabled" value.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-06-28 06:56:57 +08:00
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void pnp_free_resources(struct pnp_dev *dev);
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2008-06-28 06:56:54 +08:00
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int pnp_resource_type(struct resource *res);
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2008-04-29 06:34:28 +08:00
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2008-04-29 06:34:30 +08:00
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struct pnp_resource {
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PNP: replace pnp_resource_table with dynamically allocated resources
PNP used to have a fixed-size pnp_resource_table for tracking the
resources used by a device. This table often overflowed, so we've
had to increase the table size, which wastes memory because most
devices have very few resources.
This patch replaces the table with a linked list of resources where
the entries are allocated on demand.
This removes messages like these:
pnpacpi: exceeded the max number of IO resources
00:01: too many I/O port resources
References:
http://bugzilla.kernel.org/show_bug.cgi?id=9535
http://bugzilla.kernel.org/show_bug.cgi?id=9740
http://lkml.org/lkml/2007/11/30/110
This patch also changes the way PNP uses the IORESOURCE_UNSET,
IORESOURCE_AUTO, and IORESOURCE_DISABLED flags.
Prior to this patch, the pnp_resource_table entries used the flags
like this:
IORESOURCE_UNSET
This table entry is unused and available for use. When this flag
is set, we shouldn't look at anything else in the resource structure.
This flag is set when a resource table entry is initialized.
IORESOURCE_AUTO
This resource was assigned automatically by pnp_assign_{io,mem,etc}().
This flag is set when a resource table entry is initialized and
cleared whenever we discover a resource setting by reading an ISAPNP
config register, parsing a PNPBIOS resource data stream, parsing an
ACPI _CRS list, or interpreting a sysfs "set" command.
Resources marked IORESOURCE_AUTO are reinitialized and marked as
IORESOURCE_UNSET by pnp_clean_resource_table() in these cases:
- before we attempt to assign resources automatically,
- if we fail to assign resources automatically,
- after disabling a device
IORESOURCE_DISABLED
Set by pnp_assign_{io,mem,etc}() when automatic assignment fails.
Also set by PNPBIOS and PNPACPI for:
- invalid IRQs or GSI registration failures
- invalid DMA channels
- I/O ports above 0x10000
- mem ranges with negative length
After this patch, there is no pnp_resource_table, and the resource list
entries use the flags like this:
IORESOURCE_UNSET
This flag is no longer used in PNP. Instead of keeping
IORESOURCE_UNSET entries in the resource list, we remove
entries from the list and free them.
IORESOURCE_AUTO
No change in meaning: it still means the resource was assigned
automatically by pnp_assign_{port,mem,etc}(), but these functions
now set the bit explicitly.
We still "clean" a device's resource list in the same places,
but rather than reinitializing IORESOURCE_AUTO entries, we
just remove them from the list.
Note that IORESOURCE_AUTO entries are always at the end of the
list, so removing them doesn't reorder other list entries.
This is because non-IORESOURCE_AUTO entries are added by the
ISAPNP, PNPBIOS, or PNPACPI "get resources" methods and by the
sysfs "set" command. In each of these cases, we completely free
the resource list first.
IORESOURCE_DISABLED
In addition to the cases where we used to set this flag, ISAPNP now
adds an IORESOURCE_DISABLED resource when it reads a configuration
register with a "disabled" value.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-06-28 06:56:57 +08:00
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struct list_head list;
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2008-04-29 06:34:30 +08:00
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struct resource res;
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};
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PNP: replace pnp_resource_table with dynamically allocated resources
PNP used to have a fixed-size pnp_resource_table for tracking the
resources used by a device. This table often overflowed, so we've
had to increase the table size, which wastes memory because most
devices have very few resources.
This patch replaces the table with a linked list of resources where
the entries are allocated on demand.
This removes messages like these:
pnpacpi: exceeded the max number of IO resources
00:01: too many I/O port resources
References:
http://bugzilla.kernel.org/show_bug.cgi?id=9535
http://bugzilla.kernel.org/show_bug.cgi?id=9740
http://lkml.org/lkml/2007/11/30/110
This patch also changes the way PNP uses the IORESOURCE_UNSET,
IORESOURCE_AUTO, and IORESOURCE_DISABLED flags.
Prior to this patch, the pnp_resource_table entries used the flags
like this:
IORESOURCE_UNSET
This table entry is unused and available for use. When this flag
is set, we shouldn't look at anything else in the resource structure.
This flag is set when a resource table entry is initialized.
IORESOURCE_AUTO
This resource was assigned automatically by pnp_assign_{io,mem,etc}().
This flag is set when a resource table entry is initialized and
cleared whenever we discover a resource setting by reading an ISAPNP
config register, parsing a PNPBIOS resource data stream, parsing an
ACPI _CRS list, or interpreting a sysfs "set" command.
Resources marked IORESOURCE_AUTO are reinitialized and marked as
IORESOURCE_UNSET by pnp_clean_resource_table() in these cases:
- before we attempt to assign resources automatically,
- if we fail to assign resources automatically,
- after disabling a device
IORESOURCE_DISABLED
Set by pnp_assign_{io,mem,etc}() when automatic assignment fails.
Also set by PNPBIOS and PNPACPI for:
- invalid IRQs or GSI registration failures
- invalid DMA channels
- I/O ports above 0x10000
- mem ranges with negative length
After this patch, there is no pnp_resource_table, and the resource list
entries use the flags like this:
IORESOURCE_UNSET
This flag is no longer used in PNP. Instead of keeping
IORESOURCE_UNSET entries in the resource list, we remove
entries from the list and free them.
IORESOURCE_AUTO
No change in meaning: it still means the resource was assigned
automatically by pnp_assign_{port,mem,etc}(), but these functions
now set the bit explicitly.
We still "clean" a device's resource list in the same places,
but rather than reinitializing IORESOURCE_AUTO entries, we
just remove them from the list.
Note that IORESOURCE_AUTO entries are always at the end of the
list, so removing them doesn't reorder other list entries.
This is because non-IORESOURCE_AUTO entries are added by the
ISAPNP, PNPBIOS, or PNPACPI "get resources" methods and by the
sysfs "set" command. In each of these cases, we completely free
the resource list first.
IORESOURCE_DISABLED
In addition to the cases where we used to set this flag, ISAPNP now
adds an IORESOURCE_DISABLED resource when it reads a configuration
register with a "disabled" value.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-06-28 06:56:57 +08:00
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void pnp_free_resource(struct pnp_resource *pnp_res);
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2008-04-29 06:34:34 +08:00
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struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
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int flags);
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2008-04-29 06:34:35 +08:00
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struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
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int flags);
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2008-04-29 06:34:36 +08:00
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struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
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resource_size_t start,
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resource_size_t end, int flags);
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2008-04-29 06:34:37 +08:00
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struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
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resource_size_t start,
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resource_size_t end, int flags);
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