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path: root/drivers/pnp/support.c
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-rw-r--r--drivers/pnp/support.c79
1 files changed, 35 insertions, 44 deletions
diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c
index eb07345f5cf7..1566e4a73849 100644
--- a/drivers/pnp/support.c
+++ b/drivers/pnp/support.c
@@ -16,6 +16,10 @@
*/
int pnp_is_active(struct pnp_dev *dev)
{
+ /*
+ * I don't think this is very reliable because pnp_disable_dev()
+ * only clears out auto-assigned resources.
+ */
if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 &&
!pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 &&
pnp_irq(dev, 0) == -1 && pnp_dma(dev, 0) == -1)
@@ -70,54 +74,41 @@ char *pnp_resource_type_name(struct resource *res)
void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc)
{
#ifdef DEBUG
+ char buf[128];
+ int len = 0;
+ struct pnp_resource *pnp_res;
struct resource *res;
- int i;
dev_dbg(&dev->dev, "current resources: %s\n", desc);
+ list_for_each_entry(pnp_res, &dev->resources, list) {
+ res = &pnp_res->res;
- for (i = 0; i < PNP_MAX_IRQ; i++) {
- res = pnp_get_resource(dev, IORESOURCE_IRQ, i);
- if (res && !(res->flags & IORESOURCE_UNSET))
- dev_dbg(&dev->dev, " irq %lld flags %#lx%s%s\n",
- (unsigned long long) res->start, res->flags,
- res->flags & IORESOURCE_DISABLED ?
- " DISABLED" : "",
- res->flags & IORESOURCE_AUTO ?
- " AUTO" : "");
- }
- for (i = 0; i < PNP_MAX_DMA; i++) {
- res = pnp_get_resource(dev, IORESOURCE_DMA, i);
- if (res && !(res->flags & IORESOURCE_UNSET))
- dev_dbg(&dev->dev, " dma %lld flags %#lx%s%s\n",
- (unsigned long long) res->start, res->flags,
- res->flags & IORESOURCE_DISABLED ?
- " DISABLED" : "",
- res->flags & IORESOURCE_AUTO ?
- " AUTO" : "");
- }
- for (i = 0; i < PNP_MAX_PORT; i++) {
- res = pnp_get_resource(dev, IORESOURCE_IO, i);
- if (res && !(res->flags & IORESOURCE_UNSET))
- dev_dbg(&dev->dev, " io %#llx-%#llx flags %#lx"
- "%s%s\n",
- (unsigned long long) res->start,
- (unsigned long long) res->end, res->flags,
- res->flags & IORESOURCE_DISABLED ?
- " DISABLED" : "",
- res->flags & IORESOURCE_AUTO ?
- " AUTO" : "");
- }
- for (i = 0; i < PNP_MAX_MEM; i++) {
- res = pnp_get_resource(dev, IORESOURCE_MEM, i);
- if (res && !(res->flags & IORESOURCE_UNSET))
- dev_dbg(&dev->dev, " mem %#llx-%#llx flags %#lx"
- "%s%s\n",
- (unsigned long long) res->start,
- (unsigned long long) res->end, res->flags,
- res->flags & IORESOURCE_DISABLED ?
- " DISABLED" : "",
- res->flags & IORESOURCE_AUTO ?
- " AUTO" : "");
+ len += snprintf(buf + len, sizeof(buf) - len, " %-3s ",
+ pnp_resource_type_name(res));
+
+ if (res->flags & IORESOURCE_DISABLED) {
+ dev_dbg(&dev->dev, "%sdisabled\n", buf);
+ continue;
+ }
+
+ switch (pnp_resource_type(res)) {
+ case IORESOURCE_IO:
+ case IORESOURCE_MEM:
+ len += snprintf(buf + len, sizeof(buf) - len,
+ "%#llx-%#llx flags %#lx",
+ (unsigned long long) res->start,
+ (unsigned long long) res->end,
+ res->flags);
+ break;
+ case IORESOURCE_IRQ:
+ case IORESOURCE_DMA:
+ len += snprintf(buf + len, sizeof(buf) - len,
+ "%lld flags %#lx",
+ (unsigned long long) res->start,
+ res->flags);
+ break;
+ }
+ dev_dbg(&dev->dev, "%s\n", buf);
}
#endif
}

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