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path: root/drivers/pnp/manager.c
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Diffstat (limited to 'drivers/pnp/manager.c')
-rw-r--r--drivers/pnp/manager.c120
1 files changed, 68 insertions, 52 deletions
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
index 57e6ab1004d0..17c95188bd11 100644
--- a/drivers/pnp/manager.c
+++ b/drivers/pnp/manager.c
@@ -26,7 +26,8 @@ static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
return -EINVAL;
if (idx >= PNP_MAX_PORT) {
- pnp_err("More than 4 ports is incompatible with pnp specifications.");
+ pnp_err
+ ("More than 4 ports is incompatible with pnp specifications.");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
@@ -41,11 +42,11 @@ static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
/* set the initial values */
*flags |= rule->flags | IORESOURCE_IO;
- *flags &= ~IORESOURCE_UNSET;
+ *flags &= ~IORESOURCE_UNSET;
if (!rule->size) {
*flags |= IORESOURCE_DISABLED;
- return 1; /* skip disabled resource requests */
+ return 1; /* skip disabled resource requests */
}
*start = rule->min;
@@ -70,7 +71,8 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
return -EINVAL;
if (idx >= PNP_MAX_MEM) {
- pnp_err("More than 8 mems is incompatible with pnp specifications.");
+ pnp_err
+ ("More than 8 mems is incompatible with pnp specifications.");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
@@ -85,7 +87,7 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
/* set the initial values */
*flags |= rule->flags | IORESOURCE_MEM;
- *flags &= ~IORESOURCE_UNSET;
+ *flags &= ~IORESOURCE_UNSET;
/* convert pnp flags to standard Linux flags */
if (!(rule->flags & IORESOURCE_MEM_WRITEABLE))
@@ -99,11 +101,11 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
if (!rule->size) {
*flags |= IORESOURCE_DISABLED;
- return 1; /* skip disabled resource requests */
+ return 1; /* skip disabled resource requests */
}
*start = rule->min;
- *end = *start + rule->size -1;
+ *end = *start + rule->size - 1;
/* run through until pnp_check_mem is happy */
while (!pnp_check_mem(dev, idx)) {
@@ -115,7 +117,7 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
return 1;
}
-static int pnp_assign_irq(struct pnp_dev * dev, struct pnp_irq *rule, int idx)
+static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
{
resource_size_t *start, *end;
unsigned long *flags;
@@ -130,7 +132,8 @@ static int pnp_assign_irq(struct pnp_dev * dev, struct pnp_irq *rule, int idx)
return -EINVAL;
if (idx >= PNP_MAX_IRQ) {
- pnp_err("More than 2 irqs is incompatible with pnp specifications.");
+ pnp_err
+ ("More than 2 irqs is incompatible with pnp specifications.");
/* pretend we were successful so at least the manager won't try again */
return 1;
}
@@ -145,11 +148,11 @@ static int pnp_assign_irq(struct pnp_dev * dev, struct pnp_irq *rule, int idx)
/* set the initial values */
*flags |= rule->flags | IORESOURCE_IRQ;
- *flags &= ~IORESOURCE_UNSET;
+ *flags &= ~IORESOURCE_UNSET;
if (bitmap_empty(rule->map, PNP_IRQ_NR)) {
*flags |= IORESOURCE_DISABLED;
- return 1; /* skip disabled resource requests */
+ return 1; /* skip disabled resource requests */
}
/* TBD: need check for >16 IRQ */
@@ -159,9 +162,9 @@ static int pnp_assign_irq(struct pnp_dev * dev, struct pnp_irq *rule, int idx)
return 1;
}
for (i = 0; i < 16; i++) {
- if(test_bit(xtab[i], rule->map)) {
+ if (test_bit(xtab[i], rule->map)) {
*start = *end = xtab[i];
- if(pnp_check_irq(dev, idx))
+ if (pnp_check_irq(dev, idx))
return 1;
}
}
@@ -183,7 +186,8 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
return -EINVAL;
if (idx >= PNP_MAX_DMA) {
- pnp_err("More than 2 dmas is incompatible with pnp specifications.");
+ 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;
}
@@ -198,17 +202,17 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
/* set the initial values */
*flags |= rule->flags | IORESOURCE_DMA;
- *flags &= ~IORESOURCE_UNSET;
+ *flags &= ~IORESOURCE_UNSET;
if (!rule->map) {
*flags |= IORESOURCE_DISABLED;
- return 1; /* skip disabled resource requests */
+ return 1; /* skip disabled resource requests */
}
for (i = 0; i < 8; i++) {
- if(rule->map & (1<<xtab[i])) {
+ if (rule->map & (1 << xtab[i])) {
*start = *end = xtab[i];
- if(pnp_check_dma(dev, idx))
+ if (pnp_check_dma(dev, idx))
return 1;
}
}
@@ -227,25 +231,29 @@ void pnp_init_resource_table(struct pnp_resource_table *table)
table->irq_resource[idx].name = NULL;
table->irq_resource[idx].start = -1;
table->irq_resource[idx].end = -1;
- table->irq_resource[idx].flags = IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ table->irq_resource[idx].flags =
+ IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
}
for (idx = 0; idx < PNP_MAX_DMA; idx++) {
table->dma_resource[idx].name = NULL;
table->dma_resource[idx].start = -1;
table->dma_resource[idx].end = -1;
- table->dma_resource[idx].flags = IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ table->dma_resource[idx].flags =
+ IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
}
for (idx = 0; idx < PNP_MAX_PORT; idx++) {
table->port_resource[idx].name = NULL;
table->port_resource[idx].start = 0;
table->port_resource[idx].end = 0;
- table->port_resource[idx].flags = IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ table->port_resource[idx].flags =
+ IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
}
for (idx = 0; idx < PNP_MAX_MEM; idx++) {
table->mem_resource[idx].name = NULL;
table->mem_resource[idx].start = 0;
table->mem_resource[idx].end = 0;
- table->mem_resource[idx].flags = IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ table->mem_resource[idx].flags =
+ IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
}
}
@@ -254,7 +262,7 @@ void pnp_init_resource_table(struct pnp_resource_table *table)
* @res: the resources to clean
*
*/
-static void pnp_clean_resource_table(struct pnp_resource_table * res)
+static void pnp_clean_resource_table(struct pnp_resource_table *res)
{
int idx;
for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
@@ -262,28 +270,32 @@ static void pnp_clean_resource_table(struct pnp_resource_table * res)
continue;
res->irq_resource[idx].start = -1;
res->irq_resource[idx].end = -1;
- res->irq_resource[idx].flags = IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ res->irq_resource[idx].flags =
+ IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
}
for (idx = 0; idx < PNP_MAX_DMA; idx++) {
if (!(res->dma_resource[idx].flags & IORESOURCE_AUTO))
continue;
res->dma_resource[idx].start = -1;
res->dma_resource[idx].end = -1;
- res->dma_resource[idx].flags = IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ res->dma_resource[idx].flags =
+ IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
}
for (idx = 0; idx < PNP_MAX_PORT; idx++) {
if (!(res->port_resource[idx].flags & IORESOURCE_AUTO))
continue;
res->port_resource[idx].start = 0;
res->port_resource[idx].end = 0;
- res->port_resource[idx].flags = IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ res->port_resource[idx].flags =
+ IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
}
for (idx = 0; idx < PNP_MAX_MEM; idx++) {
if (!(res->mem_resource[idx].flags & IORESOURCE_AUTO))
continue;
res->mem_resource[idx].start = 0;
res->mem_resource[idx].end = 0;
- res->mem_resource[idx].flags = IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ res->mem_resource[idx].flags =
+ IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
}
}
@@ -306,7 +318,7 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
return -ENODEV;
down(&pnp_res_mutex);
- pnp_clean_resource_table(&dev->res); /* start with a fresh slate */
+ pnp_clean_resource_table(&dev->res); /* start with a fresh slate */
if (dev->independent) {
port = dev->independent->port;
mem = dev->independent->mem;
@@ -341,10 +353,11 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
if (depnum) {
struct pnp_option *dep;
int i;
- for (i=1,dep=dev->dependent; i<depnum; i++, dep=dep->next)
- if(!dep)
+ for (i = 1, dep = dev->dependent; i < depnum;
+ i++, dep = dep->next)
+ if (!dep)
goto fail;
- port =dep->port;
+ port = dep->port;
mem = dep->mem;
irq = dep->irq;
dma = dep->dma;
@@ -378,7 +391,7 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
up(&pnp_res_mutex);
return 1;
-fail:
+ fail:
pnp_clean_resource_table(&dev->res);
up(&pnp_res_mutex);
return 0;
@@ -392,10 +405,11 @@ fail:
*
* This function can be used by drivers that want to manually set thier resources.
*/
-int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table * res, int mode)
+int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res,
+ int mode)
{
int i;
- struct pnp_resource_table * bak;
+ struct pnp_resource_table *bak;
if (!dev || !res)
return -EINVAL;
if (!pnp_can_configure(dev))
@@ -409,19 +423,19 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table * res,
dev->res = *res;
if (!(mode & PNP_CONFIG_FORCE)) {
for (i = 0; i < PNP_MAX_PORT; i++) {
- if(!pnp_check_port(dev,i))
+ if (!pnp_check_port(dev, i))
goto fail;
}
for (i = 0; i < PNP_MAX_MEM; i++) {
- if(!pnp_check_mem(dev,i))
+ if (!pnp_check_mem(dev, i))
goto fail;
}
for (i = 0; i < PNP_MAX_IRQ; i++) {
- if(!pnp_check_irq(dev,i))
+ if (!pnp_check_irq(dev, i))
goto fail;
}
for (i = 0; i < PNP_MAX_DMA; i++) {
- if(!pnp_check_dma(dev,i))
+ if (!pnp_check_dma(dev, i))
goto fail;
}
}
@@ -430,7 +444,7 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table * res,
kfree(bak);
return 0;
-fail:
+ fail:
dev->res = *bak;
up(&pnp_res_mutex);
kfree(bak);
@@ -447,11 +461,12 @@ int pnp_auto_config_dev(struct pnp_dev *dev)
struct pnp_option *dep;
int i = 1;
- if(!dev)
+ if (!dev)
return -EINVAL;
- if(!pnp_can_configure(dev)) {
- pnp_dbg("Device %s does not support resource configuration.", dev->dev.bus_id);
+ if (!pnp_can_configure(dev)) {
+ pnp_dbg("Device %s does not support resource configuration.",
+ dev->dev.bus_id);
return -ENODEV;
}
@@ -482,11 +497,12 @@ 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);
+ pnp_dbg("Device %s does not support activation.",
+ dev->dev.bus_id);
return -EINVAL;
}
- if (dev->protocol->set(dev, &dev->res)<0) {
+ if (dev->protocol->set(dev, &dev->res) < 0) {
pnp_err("Failed to activate device %s.", dev->dev.bus_id);
return -EIO;
}
@@ -506,10 +522,11 @@ 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);
+ pnp_dbg("Device %s does not support disabling.",
+ dev->dev.bus_id);
return -EINVAL;
}
- if (dev->protocol->disable(dev)<0) {
+ if (dev->protocol->disable(dev) < 0) {
pnp_err("Failed to disable device %s.", dev->dev.bus_id);
return -EIO;
}
@@ -532,7 +549,7 @@ int pnp_activate_dev(struct pnp_dev *dev)
if (!dev)
return -EINVAL;
if (dev->active) {
- return 0; /* the device is already active */
+ return 0; /* the device is already active */
}
/* ensure resources are allocated */
@@ -558,10 +575,10 @@ int pnp_disable_dev(struct pnp_dev *dev)
{
int error;
- if (!dev)
- return -EINVAL;
+ if (!dev)
+ return -EINVAL;
if (!dev->active) {
- return 0; /* the device is already disabled */
+ return 0; /* the device is already disabled */
}
error = pnp_stop_dev(dev);
@@ -586,7 +603,7 @@ int pnp_disable_dev(struct pnp_dev *dev)
*
*/
void pnp_resource_change(struct resource *resource, resource_size_t start,
- resource_size_t size)
+ resource_size_t size)
{
if (resource == NULL)
return;
@@ -595,7 +612,6 @@ void pnp_resource_change(struct resource *resource, resource_size_t start,
resource->end = start + size - 1;
}
-
EXPORT_SYMBOL(pnp_manual_config_dev);
#if 0
EXPORT_SYMBOL(pnp_auto_config_dev);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 14:22:02 +0000