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PNP: make generic pnp_add_mem_resource()

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Add a pnp_add_mem_resource() that can be used by all the PNP
backends.  This consolidates a little more pnp_resource_table
knowledge into one place.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2008-04-28 16:34:37 -06:00 committed by Len Brown
parent cc8c2e3081
commit d6180f3661
6 changed files with 56 additions and 60 deletions
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3
drivers/pnp/base.h
View File

@ -48,3 +48,6 @@ struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
resource_size_t start,
resource_size_t end, int flags);
struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
resource_size_t start,
resource_size_t end, int flags);

19
drivers/pnp/interface.c
View File

@ -321,7 +321,6 @@ pnp_set_current_resources(struct device *dmdev, struct device_attribute *attr,
{
struct pnp_dev *dev = to_pnp_dev(dmdev);
struct pnp_resource *pnp_res;
struct resource *res;
char *buf = (void *)ubuf;
int retval = 0;
resource_size_t start, end;
@ -402,24 +401,20 @@ pnp_set_current_resources(struct device *dmdev, struct device_attribute *attr,
buf += 3;
while (isspace(*buf))
++buf;
pnp_res = pnp_get_pnp_resource(dev,
IORESOURCE_MEM, nmem);
if (!pnp_res)
break;
pnp_res->index = nmem;
res = &pnp_res->res;
res->start = simple_strtoul(buf, &buf, 0);
start = simple_strtoul(buf, &buf, 0);
while (isspace(*buf))
++buf;
if (*buf == '-') {
buf += 1;
while (isspace(*buf))
++buf;
res->end = simple_strtoul(buf, &buf, 0);
end = simple_strtoul(buf, &buf, 0);
} else
res->end = res->start;
res->flags = IORESOURCE_MEM;
nmem++;
end = start;
pnp_res = pnp_add_mem_resource(dev, start, end,
0);
if (pnp_res)
pnp_res->index = nmem++;
continue;
}
if (!strnicmp(buf, "irq", 3)) {

10
drivers/pnp/isapnp/core.c
View File

@ -932,7 +932,6 @@ EXPORT_SYMBOL(isapnp_write_byte);
static int isapnp_read_resources(struct pnp_dev *dev)
{
struct pnp_resource *pnp_res;
struct resource *res;
int tmp, ret;
dev->active = isapnp_read_byte(ISAPNP_CFG_ACTIVATE);
@ -950,12 +949,9 @@ static int isapnp_read_resources(struct pnp_dev *dev)
isapnp_read_word(ISAPNP_CFG_MEM + (tmp << 3)) << 8;
if (!ret)
continue;
pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_MEM,
tmp);
pnp_res->index = tmp;
res = &pnp_res->res;
res->start = ret;
res->flags = IORESOURCE_MEM;
pnp_res = pnp_add_mem_resource(dev, ret, ret, 0);
if (pnp_res)
pnp_res->index = tmp;
}
for (tmp = 0; tmp < ISAPNP_MAX_IRQ; tmp++) {
ret =

32
drivers/pnp/pnpacpi/rsparser.c
View File

@ -173,34 +173,18 @@ static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
}
static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
u64 mem, u64 len,
u64 start, u64 len,
int write_protect)
{
struct resource *res;
int i;
static unsigned char warned;
int flags = 0;
u64 end = start + len - 1;
for (i = 0; i < PNP_MAX_MEM; i++) {
res = pnp_get_resource(dev, IORESOURCE_MEM, i);
if (!pnp_resource_valid(res))
break;
}
if (i < PNP_MAX_MEM) {
res->flags = IORESOURCE_MEM; // Also clears _UNSET flag
if (len <= 0) {
res->flags |= IORESOURCE_DISABLED;
return;
}
if (write_protect == ACPI_READ_WRITE_MEMORY)
res->flags |= IORESOURCE_MEM_WRITEABLE;
if (len == 0)
flags |= IORESOURCE_DISABLED;
if (write_protect == ACPI_READ_WRITE_MEMORY)
flags |= IORESOURCE_MEM_WRITEABLE;
res->start = mem;
res->end = mem + len - 1;
} else if (!warned) {
printk(KERN_WARNING "pnpacpi: exceeded the max number of mem "
"resources: %d\n", PNP_MAX_MEM);
warned = 1;
}
pnp_add_mem_resource(dev, start, end, flags);
}
static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,

23
drivers/pnp/pnpbios/rsparser.c
View File

@ -67,26 +67,15 @@ static void pnpbios_parse_allocated_ioresource(struct pnp_dev *dev,
}
static void pnpbios_parse_allocated_memresource(struct pnp_dev *dev,
int mem, int len)
int start, int len)
{
struct resource *res;
int i;
int flags = 0;
int end = start + len - 1;
for (i = 0; i < PNP_MAX_MEM; i++) {
res = pnp_get_resource(dev, IORESOURCE_MEM, i);
if (!pnp_resource_valid(res))
break;
}
if (len <= 0)
flags |= IORESOURCE_DISABLED;
if (i < PNP_MAX_MEM) {
res->flags = IORESOURCE_MEM; // Also clears _UNSET flag
if (len <= 0) {
res->flags |= IORESOURCE_DISABLED;
return;
}
res->start = (unsigned long)mem;
res->end = (unsigned long)(mem + len - 1);
}
pnp_add_mem_resource(dev, start, end, flags);
}
static unsigned char *pnpbios_parse_allocated_resource_data(struct pnp_dev *dev,

29
drivers/pnp/resource.c
View File

@ -657,6 +657,35 @@ struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
return pnp_res;
}
struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
resource_size_t start,
resource_size_t end, int flags)
{
struct pnp_resource *pnp_res;
struct resource *res;
static unsigned char warned;
pnp_res = pnp_new_resource(dev, IORESOURCE_MEM);
if (!pnp_res) {
if (!warned) {
dev_err(&dev->dev, "can't add resource for MEM "
"%#llx-%#llx\n",(unsigned long long) start,
(unsigned long long) end);
warned = 1;
}
return NULL;
}
res = &pnp_res->res;
res->flags = IORESOURCE_MEM | flags;
res->start = start;
res->end = end;
dev_dbg(&dev->dev, " add mem %#llx-%#llx flags %#x\n",
(unsigned long long) start, (unsigned long long) end, flags);
return pnp_res;
}
/* format is: pnp_reserve_irq=irq1[,irq2] .... */
static int __init pnp_setup_reserve_irq(char *str)
{