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PNP: add pnp_get_pnp_resource()

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In some places, we need to get the struct pnp_resource, not just
the struct resource, because ISAPNP needs to store the register
index in the pnp_resource.

I don't like pnp_get_pnp_resource() and hope that it is temporary,
but we need it for a little while.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2008-04-28 16:34:31 -06:00 committed by Len Brown
parent 784f01d5bd
commit 0a977f1546
2 changed files with 21 additions and 6 deletions
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3
drivers/pnp/base.h
View file

@ -21,6 +21,9 @@ 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

24
drivers/pnp/resource.c
View file

@ -499,8 +499,8 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
#endif
}
struct resource *pnp_get_resource(struct pnp_dev *dev,
unsigned int type, unsigned int num)
struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
unsigned int type, unsigned int num)
{
struct pnp_resource_table *res = dev->res;
@ -508,22 +508,34 @@ struct resource *pnp_get_resource(struct pnp_dev *dev,
case IORESOURCE_IO:
if (num >= PNP_MAX_PORT)
return NULL;
return &res->port[num].res;
return &res->port[num];
case IORESOURCE_MEM:
if (num >= PNP_MAX_MEM)
return NULL;
return &res->mem[num].res;
return &res->mem[num];
case IORESOURCE_IRQ:
if (num >= PNP_MAX_IRQ)
return NULL;
return &res->irq[num].res;
return &res->irq[num];
case IORESOURCE_DMA:
if (num >= PNP_MAX_DMA)
return NULL;
return &res->dma[num].res;
return &res->dma[num];
}
return NULL;
}
struct resource *pnp_get_resource(struct pnp_dev *dev,
unsigned int type, unsigned int num)
{
struct pnp_resource *pnp_res;
pnp_res = pnp_get_pnp_resource(dev, type, num);
if (pnp_res)
return &pnp_res->res;
return NULL;
}
EXPORT_SYMBOL(pnp_get_resource);
/* format is: pnp_reserve_irq=irq1[,irq2] .... */