aboutsummaryrefslogtreecommitdiff
path: root/drivers/pnp/manager.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pnp/manager.c')
-rw-r--r--drivers/pnp/manager.c58
1 files changed, 23 insertions, 35 deletions
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
index 0826287eef5..c6b3d4e63cc 100644
--- a/drivers/pnp/manager.c
+++ b/drivers/pnp/manager.c
@@ -1,7 +1,7 @@
/*
* manager.c - Resource Management, Conflict Resolution, Activation and Disabling of Devices
*
- * based on isapnp.c resource management (c) Jaroslav Kysela <perex@suse.cz>
+ * based on isapnp.c resource management (c) Jaroslav Kysela <perex@perex.cz>
* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
*/
@@ -22,8 +22,7 @@ static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
unsigned long *flags;
if (idx >= PNP_MAX_PORT) {
- pnp_err
- ("More than 4 ports is incompatible with pnp specifications.");
+ dev_err(&dev->dev, "too many I/O port resources\n");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
@@ -64,8 +63,7 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
unsigned long *flags;
if (idx >= PNP_MAX_MEM) {
- pnp_err
- ("More than 8 mems is incompatible with pnp specifications.");
+ dev_err(&dev->dev, "too many memory resources\n");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
@@ -122,8 +120,7 @@ static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
};
if (idx >= PNP_MAX_IRQ) {
- pnp_err
- ("More than 2 irqs is incompatible with pnp specifications.");
+ dev_err(&dev->dev, "too many IRQ resources\n");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
@@ -161,7 +158,7 @@ static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
return 0;
}
-static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
+static void pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
{
resource_size_t *start, *end;
unsigned long *flags;
@@ -173,15 +170,13 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
};
if (idx >= PNP_MAX_DMA) {
- pnp_err
- ("More than 2 dmas is incompatible with pnp specifications.");
- /* pretend we were successful so at least the manager won't try again */
- return 1;
+ dev_err(&dev->dev, "too many DMA resources\n");
+ return;
}
/* check if this resource has been manually set, if so skip */
if (!(dev->res.dma_resource[idx].flags & IORESOURCE_AUTO))
- return 1;
+ return;
start = &dev->res.dma_resource[idx].start;
end = &dev->res.dma_resource[idx].end;
@@ -191,19 +186,17 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
*flags |= rule->flags | IORESOURCE_DMA;
*flags &= ~IORESOURCE_UNSET;
- if (!rule->map) {
- *flags |= IORESOURCE_DISABLED;
- return 1; /* skip disabled resource requests */
- }
-
for (i = 0; i < 8; i++) {
if (rule->map & (1 << xtab[i])) {
*start = *end = xtab[i];
if (pnp_check_dma(dev, idx))
- return 1;
+ return;
}
}
- return 0;
+#ifdef MAX_DMA_CHANNELS
+ *start = *end = MAX_DMA_CHANNELS;
+#endif
+ *flags |= IORESOURCE_UNSET | IORESOURCE_DISABLED;
}
/**
@@ -330,8 +323,7 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
irq = irq->next;
}
while (dma) {
- if (!pnp_assign_dma(dev, dma, ndma))
- goto fail;
+ pnp_assign_dma(dev, dma, ndma);
ndma++;
dma = dma->next;
}
@@ -367,8 +359,7 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
irq = irq->next;
}
while (dma) {
- if (!pnp_assign_dma(dev, dma, ndma))
- goto fail;
+ pnp_assign_dma(dev, dma, ndma);
ndma++;
dma = dma->next;
}
@@ -447,8 +438,7 @@ int pnp_auto_config_dev(struct pnp_dev *dev)
int i = 1;
if (!pnp_can_configure(dev)) {
- pnp_dbg("Device %s does not support resource configuration.",
- dev->dev.bus_id);
+ dev_dbg(&dev->dev, "configuration not supported\n");
return -ENODEV;
}
@@ -465,7 +455,7 @@ int pnp_auto_config_dev(struct pnp_dev *dev)
} while (dep);
}
- pnp_err("Unable to assign resources to device %s.", dev->dev.bus_id);
+ dev_err(&dev->dev, "unable to assign resources\n");
return -EBUSY;
}
@@ -478,17 +468,16 @@ int pnp_auto_config_dev(struct pnp_dev *dev)
int pnp_start_dev(struct pnp_dev *dev)
{
if (!pnp_can_write(dev)) {
- pnp_dbg("Device %s does not support activation.",
- dev->dev.bus_id);
+ dev_dbg(&dev->dev, "activation not supported\n");
return -EINVAL;
}
if (dev->protocol->set(dev, &dev->res) < 0) {
- pnp_err("Failed to activate device %s.", dev->dev.bus_id);
+ dev_err(&dev->dev, "activation failed\n");
return -EIO;
}
- pnp_info("Device %s activated.", dev->dev.bus_id);
+ dev_info(&dev->dev, "activated\n");
return 0;
}
@@ -501,16 +490,15 @@ int pnp_start_dev(struct pnp_dev *dev)
int pnp_stop_dev(struct pnp_dev *dev)
{
if (!pnp_can_disable(dev)) {
- pnp_dbg("Device %s does not support disabling.",
- dev->dev.bus_id);
+ dev_dbg(&dev->dev, "disabling not supported\n");
return -EINVAL;
}
if (dev->protocol->disable(dev) < 0) {
- pnp_err("Failed to disable device %s.", dev->dev.bus_id);
+ dev_err(&dev->dev, "disable failed\n");
return -EIO;
}
- pnp_info("Device %s disabled.", dev->dev.bus_id);
+ dev_info(&dev->dev, "disabled\n");
return 0;
}