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PNP: make generic pnp_add_irq_resource()

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Add a pnp_add_irq_resource() that can be used by all the PNP
backends.  This consolidates a little more pnp_resource_table
knowledge into one place.

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 16:34:34 -06:00
committed by Len Brown
parent a50b6d7b8d
commit dbddd0383c
6 changed files with 51 additions and 66 deletions
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31
drivers/pnp/pnpbios/rsparser.c
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@ -54,28 +54,6 @@ inline void pcibios_penalize_isa_irq(int irq, int active)
* Allocated Resources
*/
static void pnpbios_parse_allocated_irqresource(struct pnp_dev *dev, int irq)
{
struct resource *res;
int i;
for (i = 0; i < PNP_MAX_IRQ; i++) {
res = pnp_get_resource(dev, IORESOURCE_IRQ, i);
if (!pnp_resource_valid(res))
break;
}
if (i < PNP_MAX_IRQ) {
res->flags = IORESOURCE_IRQ; // Also clears _UNSET flag
if (irq == -1) {
res->flags |= IORESOURCE_DISABLED;
return;
}
res->start = res->end = (unsigned long)irq;
pcibios_penalize_isa_irq(irq, 1);
}
}
static void pnpbios_parse_allocated_dmaresource(struct pnp_dev *dev, int dma)
{
struct resource *res;
@ -148,7 +126,7 @@ static unsigned char *pnpbios_parse_allocated_resource_data(struct pnp_dev *dev,
unsigned char *end)
{
unsigned int len, tag;
int io, size, mask, i;
int io, size, mask, i, flags;
if (!p)
return NULL;
@ -205,12 +183,17 @@ static unsigned char *pnpbios_parse_allocated_resource_data(struct pnp_dev *dev,
case SMALL_TAG_IRQ:
if (len < 2 || len > 3)
goto len_err;
flags = 0;
io = -1;
mask = p[1] + p[2] * 256;
for (i = 0; i < 16; i++, mask = mask >> 1)
if (mask & 0x01)
io = i;
pnpbios_parse_allocated_irqresource(dev, io);
if (io != -1)
pcibios_penalize_isa_irq(io, 1);
else
flags = IORESOURCE_DISABLED;
pnp_add_irq_resource(dev, io, flags);
break;
case SMALL_TAG_DMA: