*
* based on isapnp.c resource management (c) Jaroslav Kysela <perex@suse.cz>
* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
- *
*/
#include <linux/errno.h>
resource_size_t *start, *end;
unsigned long *flags;
- if (!dev || !rule)
- 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;
}
/* 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;
resource_size_t *start, *end;
unsigned long *flags;
- if (!dev || !rule)
- 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;
}
/* 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))
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)) {
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;
5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
};
- if (!dev || !rule)
- 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;
}
/* 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 */
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;
}
}
1, 3, 5, 6, 7, 0, 2, 4
};
- if (!dev || !rule)
- 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;
}
/* 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;
}
}
/**
* pnp_init_resources - Resets a resource table to default values.
* @table: pointer to the desired resource table
- *
*/
void pnp_init_resource_table(struct pnp_resource_table *table)
{
int idx;
+
for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
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;
}
}
/**
* pnp_clean_resources - clears resources that were not manually set
* @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++) {
if (!(res->irq_resource[idx].flags & IORESOURCE_AUTO))
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;
}
}
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;
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;
*
* 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;
- if (!dev || !res)
- return -EINVAL;
+ struct pnp_resource_table *bak;
+
if (!pnp_can_configure(dev))
return -ENODEV;
bak = pnp_alloc(sizeof(struct pnp_resource_table));
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;
}
}
/**
* pnp_auto_config_dev - automatically assigns resources to a device
* @dev: pointer to the desired device
- *
*/
int pnp_auto_config_dev(struct pnp_dev *dev)
{
struct pnp_option *dep;
int i = 1;
- 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;
}
* pnp_start_dev - low-level start of the PnP device
* @dev: pointer to the desired device
*
- * assumes that resources have alread been allocated
+ * assumes that resources have already been allocated
*/
-
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;
}
pnp_info("Device %s activated.", dev->dev.bus_id);
-
return 0;
}
*
* does not free resources
*/
-
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;
}
pnp_info("Device %s disabled.", dev->dev.bus_id);
-
return 0;
}
{
int error;
- if (!dev)
- return -EINVAL;
- if (dev->active) {
- return 0; /* the device is already active */
- }
+ if (dev->active)
+ return 0; /* the device is already active */
/* ensure resources are allocated */
if (pnp_auto_config_dev(dev))
return error;
dev->active = 1;
-
return 1;
}
{
int error;
- if (!dev)
- return -EINVAL;
- if (!dev->active) {
- return 0; /* the device is already disabled */
- }
+ if (!dev->active)
+ return 0; /* the device is already disabled */
error = pnp_stop_dev(dev);
if (error)
* @resource: pointer to resource to be changed
* @start: start of region
* @size: size of region
- *
*/
void pnp_resource_change(struct resource *resource, resource_size_t start,
- resource_size_t size)
+ resource_size_t size)
{
- if (resource == NULL)
- return;
resource->flags &= ~(IORESOURCE_AUTO | IORESOURCE_UNSET);
resource->start = start;
resource->end = start + size - 1;
}
-
EXPORT_SYMBOL(pnp_manual_config_dev);
-#if 0
-EXPORT_SYMBOL(pnp_auto_config_dev);
-#endif
EXPORT_SYMBOL(pnp_start_dev);
EXPORT_SYMBOL(pnp_stop_dev);
EXPORT_SYMBOL(pnp_activate_dev);
projects / linux-2.6-omap-h63xx.git / blobdiff