This encapsulates the code to locate a new pnp_resource of the
desired type. Currently this uses the pnp_resource_table, but
it will soon change to find a resource in a linked list.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
Index: work10/drivers/pnp/resource.c
===================================================================
--- work10.orig/drivers/pnp/resource.c 2008-04-28 16:09:43.000000000 -0600
+++ work10/drivers/pnp/resource.c 2008-04-28 16:09:45.000000000 -0600
@@ -538,6 +538,44 @@
}
EXPORT_SYMBOL(pnp_get_resource);
+static struct pnp_resource *pnp_new_resource(struct pnp_dev *dev, int type)
+{
+ struct pnp_resource *pnp_res;
+ int i;
+
+ switch (type) {
+ case IORESOURCE_IO:
+ for (i = 0; i < PNP_MAX_PORT; i++) {
+ pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_IO, i);
+ if (pnp_res && !pnp_resource_valid(&pnp_res->res))
+ return pnp_res;
+ }
+ break;
+ case IORESOURCE_MEM:
+ for (i = 0; i < PNP_MAX_MEM; i++) {
+ pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_MEM, i);
+ if (pnp_res && !pnp_resource_valid(&pnp_res->res))
+ return pnp_res;
+ }
+ break;
+ case IORESOURCE_IRQ:
+ for (i = 0; i < PNP_MAX_IRQ; i++) {
+ pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_IRQ, i);
+ if (pnp_res && !pnp_resource_valid(&pnp_res->res))
+ return pnp_res;
+ }
+ break;
+ case IORESOURCE_DMA:
+ for (i = 0; i < PNP_MAX_DMA; i++) {
+ pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_DMA, i);
+ if (pnp_res && !pnp_resource_valid(&pnp_res->res))
+ return pnp_res;
+ }
+ break;
+ }
+ return NULL;
+}
+
/* format is: pnp_reserve_irq=irq1[,irq2] .... */
static int __init pnp_setup_reserve_irq(char *str)
{
--
--
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