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path: root/drivers/pnp/pnpbios/rsparser.c
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Diffstat (limited to 'drivers/pnp/pnpbios/rsparser.c')
-rw-r--r--drivers/pnp/pnpbios/rsparser.c99
1 files changed, 46 insertions, 53 deletions
diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c
index 54c34d4d4f4..04ecd7b6723 100644
--- a/drivers/pnp/pnpbios/rsparser.c
+++ b/drivers/pnp/pnpbios/rsparser.c
@@ -1,6 +1,5 @@
/*
* rsparser.c - parses and encodes pnpbios resource data streams
- *
*/
#include <linux/ctype.h>
@@ -15,7 +14,7 @@
inline void pcibios_penalize_isa_irq(int irq, int active)
{
}
-#endif /* CONFIG_PCI */
+#endif /* CONFIG_PCI */
#include "pnpbios.h"
@@ -54,10 +53,11 @@ inline void pcibios_penalize_isa_irq(int irq, int active)
* Allocated Resources
*/
-static void
-pnpbios_parse_allocated_irqresource(struct pnp_resource_table *res, int irq)
+static void pnpbios_parse_allocated_irqresource(struct pnp_resource_table *res,
+ int irq)
{
int i = 0;
+
while (!(res->irq_resource[i].flags & IORESOURCE_UNSET)
&& i < PNP_MAX_IRQ)
i++;
@@ -73,10 +73,11 @@ pnpbios_parse_allocated_irqresource(struct pnp_resource_table *res, int irq)
}
}
-static void
-pnpbios_parse_allocated_dmaresource(struct pnp_resource_table *res, int dma)
+static void pnpbios_parse_allocated_dmaresource(struct pnp_resource_table *res,
+ int dma)
{
int i = 0;
+
while (i < PNP_MAX_DMA &&
!(res->dma_resource[i].flags & IORESOURCE_UNSET))
i++;
@@ -91,11 +92,11 @@ pnpbios_parse_allocated_dmaresource(struct pnp_resource_table *res, int dma)
}
}
-static void
-pnpbios_parse_allocated_ioresource(struct pnp_resource_table *res, int io,
- int len)
+static void pnpbios_parse_allocated_ioresource(struct pnp_resource_table *res,
+ int io, int len)
{
int i = 0;
+
while (!(res->port_resource[i].flags & IORESOURCE_UNSET)
&& i < PNP_MAX_PORT)
i++;
@@ -110,11 +111,11 @@ pnpbios_parse_allocated_ioresource(struct pnp_resource_table *res, int io,
}
}
-static void
-pnpbios_parse_allocated_memresource(struct pnp_resource_table *res, int mem,
- int len)
+static void pnpbios_parse_allocated_memresource(struct pnp_resource_table *res,
+ int mem, int len)
{
int i = 0;
+
while (!(res->mem_resource[i].flags & IORESOURCE_UNSET)
&& i < PNP_MAX_MEM)
i++;
@@ -261,10 +262,11 @@ static unsigned char *pnpbios_parse_allocated_resource_data(unsigned char *p,
* Resource Configuration Options
*/
-static void
-pnpbios_parse_mem_option(unsigned char *p, int size, struct pnp_option *option)
+static void pnpbios_parse_mem_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
struct pnp_mem *mem;
+
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
if (!mem)
return;
@@ -274,14 +276,13 @@ pnpbios_parse_mem_option(unsigned char *p, int size, struct pnp_option *option)
mem->size = ((p[11] << 8) | p[10]) << 8;
mem->flags = p[3];
pnp_register_mem_resource(option, mem);
- return;
}
-static void
-pnpbios_parse_mem32_option(unsigned char *p, int size,
- struct pnp_option *option)
+static void pnpbios_parse_mem32_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
struct pnp_mem *mem;
+
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
if (!mem)
return;
@@ -291,12 +292,10 @@ pnpbios_parse_mem32_option(unsigned char *p, int size,
mem->size = (p[19] << 24) | (p[18] << 16) | (p[17] << 8) | p[16];
mem->flags = p[3];
pnp_register_mem_resource(option, mem);
- return;
}
-static void
-pnpbios_parse_fixed_mem32_option(unsigned char *p, int size,
- struct pnp_option *option)
+static void pnpbios_parse_fixed_mem32_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
struct pnp_mem *mem;
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
@@ -307,11 +306,10 @@ pnpbios_parse_fixed_mem32_option(unsigned char *p, int size,
mem->align = 0;
mem->flags = p[3];
pnp_register_mem_resource(option, mem);
- return;
}
-static void
-pnpbios_parse_irq_option(unsigned char *p, int size, struct pnp_option *option)
+static void pnpbios_parse_irq_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
struct pnp_irq *irq;
unsigned long bits;
@@ -326,26 +324,26 @@ pnpbios_parse_irq_option(unsigned char *p, int size, struct pnp_option *option)
else
irq->flags = IORESOURCE_IRQ_HIGHEDGE;
pnp_register_irq_resource(option, irq);
- return;
}
-static void
-pnpbios_parse_dma_option(unsigned char *p, int size, struct pnp_option *option)
+static void pnpbios_parse_dma_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
struct pnp_dma *dma;
+
dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
if (!dma)
return;
dma->map = p[1];
dma->flags = p[2];
pnp_register_dma_resource(option, dma);
- return;
}
-static void
-pnpbios_parse_port_option(unsigned char *p, int size, struct pnp_option *option)
+static void pnpbios_parse_port_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
struct pnp_port *port;
+
port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
if (!port)
return;
@@ -355,14 +353,13 @@ pnpbios_parse_port_option(unsigned char *p, int size, struct pnp_option *option)
port->size = p[7];
port->flags = p[1] ? PNP_PORT_FLAG_16BITADDR : 0;
pnp_register_port_resource(option, port);
- return;
}
-static void
-pnpbios_parse_fixed_port_option(unsigned char *p, int size,
- struct pnp_option *option)
+static void pnpbios_parse_fixed_port_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
struct pnp_port *port;
+
port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
if (!port)
return;
@@ -371,7 +368,6 @@ pnpbios_parse_fixed_port_option(unsigned char *p, int size,
port->align = 0;
port->flags = PNP_PORT_FLAG_FIXED;
pnp_register_port_resource(option, port);
- return;
}
static unsigned char *pnpbios_parse_resource_option_data(unsigned char *p,
@@ -498,7 +494,6 @@ static unsigned char *pnpbios_parse_resource_option_data(unsigned char *p,
#define HEX(id,a) hex[((id)>>a) & 15]
#define CHAR(id,a) (0x40 + (((id)>>a) & 31))
-//
void pnpid32_to_pnpid(u32 id, char *str)
{
@@ -513,11 +508,8 @@ void pnpid32_to_pnpid(u32 id, char *str)
str[5] = HEX(id, 4);
str[6] = HEX(id, 0);
str[7] = '\0';
-
- return;
}
-//
#undef CHAR
#undef HEX
@@ -598,19 +590,20 @@ static void pnpbios_encode_mem(unsigned char *p, struct resource *res)
{
unsigned long base = res->start;
unsigned long len = res->end - res->start + 1;
+
p[4] = (base >> 8) & 0xff;
p[5] = ((base >> 8) >> 8) & 0xff;
p[6] = (base >> 8) & 0xff;
p[7] = ((base >> 8) >> 8) & 0xff;
p[10] = (len >> 8) & 0xff;
p[11] = ((len >> 8) >> 8) & 0xff;
- return;
}
static void pnpbios_encode_mem32(unsigned char *p, struct resource *res)
{
unsigned long base = res->start;
unsigned long len = res->end - res->start + 1;
+
p[4] = base & 0xff;
p[5] = (base >> 8) & 0xff;
p[6] = (base >> 16) & 0xff;
@@ -623,13 +616,13 @@ static void pnpbios_encode_mem32(unsigned char *p, struct resource *res)
p[17] = (len >> 8) & 0xff;
p[18] = (len >> 16) & 0xff;
p[19] = (len >> 24) & 0xff;
- return;
}
static void pnpbios_encode_fixed_mem32(unsigned char *p, struct resource *res)
{
unsigned long base = res->start;
unsigned long len = res->end - res->start + 1;
+
p[4] = base & 0xff;
p[5] = (base >> 8) & 0xff;
p[6] = (base >> 16) & 0xff;
@@ -638,46 +631,45 @@ static void pnpbios_encode_fixed_mem32(unsigned char *p, struct resource *res)
p[9] = (len >> 8) & 0xff;
p[10] = (len >> 16) & 0xff;
p[11] = (len >> 24) & 0xff;
- return;
}
static void pnpbios_encode_irq(unsigned char *p, struct resource *res)
{
unsigned long map = 0;
+
map = 1 << res->start;
p[1] = map & 0xff;
p[2] = (map >> 8) & 0xff;
- return;
}
static void pnpbios_encode_dma(unsigned char *p, struct resource *res)
{
unsigned long map = 0;
+
map = 1 << res->start;
p[1] = map & 0xff;
- return;
}
static void pnpbios_encode_port(unsigned char *p, struct resource *res)
{
unsigned long base = res->start;
unsigned long len = res->end - res->start + 1;
+
p[2] = base & 0xff;
p[3] = (base >> 8) & 0xff;
p[4] = base & 0xff;
p[5] = (base >> 8) & 0xff;
p[7] = len & 0xff;
- return;
}
static void pnpbios_encode_fixed_port(unsigned char *p, struct resource *res)
{
unsigned long base = res->start;
unsigned long len = res->end - res->start + 1;
+
p[1] = base & 0xff;
p[2] = (base >> 8) & 0xff;
p[3] = len & 0xff;
- return;
}
static unsigned char *pnpbios_encode_allocated_resource_data(unsigned char *p,
@@ -792,6 +784,7 @@ int pnpbios_parse_data_stream(struct pnp_dev *dev, struct pnp_bios_node *node)
{
unsigned char *p = (char *)node->data;
unsigned char *end = (char *)(node->data + node->size);
+
p = pnpbios_parse_allocated_resource_data(p, end, &dev->res);
if (!p)
return -EIO;
@@ -804,24 +797,24 @@ int pnpbios_parse_data_stream(struct pnp_dev *dev, struct pnp_bios_node *node)
return 0;
}
-int
-pnpbios_read_resources_from_node(struct pnp_resource_table *res,
- struct pnp_bios_node *node)
+int pnpbios_read_resources_from_node(struct pnp_resource_table *res,
+ struct pnp_bios_node *node)
{
unsigned char *p = (char *)node->data;
unsigned char *end = (char *)(node->data + node->size);
+
p = pnpbios_parse_allocated_resource_data(p, end, res);
if (!p)
return -EIO;
return 0;
}
-int
-pnpbios_write_resources_to_node(struct pnp_resource_table *res,
- struct pnp_bios_node *node)
+int pnpbios_write_resources_to_node(struct pnp_resource_table *res,
+ struct pnp_bios_node *node)
{
unsigned char *p = (char *)node->data;
unsigned char *end = (char *)(node->data + node->size);
+
p = pnpbios_encode_allocated_resource_data(p, end, res);
if (!p)
return -EIO;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-27 04:49:20 +0000