/*
* rsparser.c - parses and encodes pnpbios resource data streams
- *
*/
#include <linux/ctype.h>
#ifdef CONFIG_PCI
#include <linux/pci.h>
#else
-inline void pcibios_penalize_isa_irq(int irq, int active) {}
-#endif /* CONFIG_PCI */
+inline void pcibios_penalize_isa_irq(int irq, int active)
+{
+}
+#endif /* CONFIG_PCI */
#include "pnpbios.h"
* 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++;
+
+ while (!(res->irq_resource[i].flags & IORESOURCE_UNSET)
+ && i < PNP_MAX_IRQ)
+ i++;
if (i < PNP_MAX_IRQ) {
- res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
+ res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
if (irq == -1) {
res->irq_resource[i].flags |= IORESOURCE_DISABLED;
return;
}
res->irq_resource[i].start =
- res->irq_resource[i].end = (unsigned long) irq;
+ res->irq_resource[i].end = (unsigned long)irq;
pcibios_penalize_isa_irq(irq, 1);
}
}
-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))
+ !(res->dma_resource[i].flags & IORESOURCE_UNSET))
i++;
if (i < PNP_MAX_DMA) {
- res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
+ res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
if (dma == -1) {
res->dma_resource[i].flags |= IORESOURCE_DISABLED;
return;
}
res->dma_resource[i].start =
- res->dma_resource[i].end = (unsigned long) dma;
+ res->dma_resource[i].end = (unsigned long)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++;
+
+ while (!(res->port_resource[i].flags & IORESOURCE_UNSET)
+ && i < PNP_MAX_PORT)
+ i++;
if (i < PNP_MAX_PORT) {
- res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
- if (len <= 0 || (io + len -1) >= 0x10003) {
+ res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
+ if (len <= 0 || (io + len - 1) >= 0x10003) {
res->port_resource[i].flags |= IORESOURCE_DISABLED;
return;
}
- res->port_resource[i].start = (unsigned long) io;
+ res->port_resource[i].start = (unsigned long)io;
res->port_resource[i].end = (unsigned long)(io + len - 1);
}
}
-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++;
+
+ while (!(res->mem_resource[i].flags & IORESOURCE_UNSET)
+ && i < PNP_MAX_MEM)
+ i++;
if (i < PNP_MAX_MEM) {
- res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
+ res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
if (len <= 0) {
res->mem_resource[i].flags |= IORESOURCE_DISABLED;
return;
}
- res->mem_resource[i].start = (unsigned long) mem;
+ res->mem_resource[i].start = (unsigned long)mem;
res->mem_resource[i].end = (unsigned long)(mem + len - 1);
}
}
-static unsigned char *
-pnpbios_parse_allocated_resource_data(unsigned char * p, unsigned char * end, struct pnp_resource_table * res)
+static unsigned char *pnpbios_parse_allocated_resource_data(unsigned char *p,
+ unsigned char *end,
+ struct
+ pnp_resource_table
+ *res)
{
unsigned int len, tag;
int io, size, mask, i;
while ((char *)p < (char *)end) {
/* determine the type of tag */
- if (p[0] & LARGE_TAG) { /* large tag */
+ if (p[0] & LARGE_TAG) { /* large tag */
len = (p[2] << 8) | p[1];
tag = p[0];
- } else { /* small tag */
+ } else { /* small tag */
len = p[0] & 0x07;
- tag = ((p[0]>>3) & 0x0f);
+ tag = ((p[0] >> 3) & 0x0f);
}
switch (tag) {
case LARGE_TAG_MEM:
if (len != 9)
goto len_err;
- io = *(short *) &p[4];
- size = *(short *) &p[10];
+ io = *(short *)&p[4];
+ size = *(short *)&p[10];
pnpbios_parse_allocated_memresource(res, io, size);
break;
case LARGE_TAG_MEM32:
if (len != 17)
goto len_err;
- io = *(int *) &p[4];
- size = *(int *) &p[16];
+ io = *(int *)&p[4];
+ size = *(int *)&p[16];
pnpbios_parse_allocated_memresource(res, io, size);
break;
case LARGE_TAG_FIXEDMEM32:
if (len != 9)
goto len_err;
- io = *(int *) &p[4];
- size = *(int *) &p[8];
+ io = *(int *)&p[4];
+ size = *(int *)&p[8];
pnpbios_parse_allocated_memresource(res, io, size);
break;
if (len < 2 || len > 3)
goto len_err;
io = -1;
- mask= p[1] + p[2]*256;
- for (i=0;i<16;i++, mask=mask>>1)
- if(mask & 0x01) io=i;
+ mask = p[1] + p[2] * 256;
+ for (i = 0; i < 16; i++, mask = mask >> 1)
+ if (mask & 0x01)
+ io = i;
pnpbios_parse_allocated_irqresource(res, io);
break;
goto len_err;
io = -1;
mask = p[1];
- for (i=0;i<8;i++, mask = mask>>1)
- if(mask & 0x01) io=i;
+ for (i = 0; i < 8; i++, mask = mask >> 1)
+ if (mask & 0x01)
+ io = i;
pnpbios_parse_allocated_dmaresource(res, io);
break;
case SMALL_TAG_PORT:
if (len != 7)
goto len_err;
- io = p[2] + p[3] *256;
+ io = p[2] + p[3] * 256;
size = p[7];
pnpbios_parse_allocated_ioresource(res, io, size);
break;
case SMALL_TAG_END:
p = p + 2;
- return (unsigned char *)p;
+ return (unsigned char *)p;
break;
- default: /* an unkown tag */
- len_err:
- printk(KERN_ERR "PnPBIOS: Unknown tag '0x%x', length '%d'.\n", tag, len);
+ default: /* an unkown tag */
+len_err:
+ printk(KERN_ERR
+ "PnPBIOS: Unknown tag '0x%x', length '%d'.\n",
+ tag, len);
break;
}
p += len + 1;
}
- printk(KERN_ERR "PnPBIOS: Resource structure does not contain an end tag.\n");
+ printk(KERN_ERR
+ "PnPBIOS: Resource structure does not contain an end tag.\n");
return NULL;
}
-
/*
* Resource Configuration Options
*/
-static void
-pnpbios_parse_mem_option(unsigned char *p, int size, struct pnp_option *option)
+static __init void pnpbios_parse_mem_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
- struct pnp_mem * mem;
+ struct pnp_mem *mem;
+
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
if (!mem)
return;
mem->align = (p[9] << 8) | p[8];
mem->size = ((p[11] << 8) | p[10]) << 8;
mem->flags = p[3];
- pnp_register_mem_resource(option,mem);
- return;
+ pnp_register_mem_resource(option, mem);
}
-static void
-pnpbios_parse_mem32_option(unsigned char *p, int size, struct pnp_option *option)
+static __init void pnpbios_parse_mem32_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
- struct pnp_mem * mem;
+ struct pnp_mem *mem;
+
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
if (!mem)
return;
mem->align = (p[15] << 24) | (p[14] << 16) | (p[13] << 8) | p[12];
mem->size = (p[19] << 24) | (p[18] << 16) | (p[17] << 8) | p[16];
mem->flags = p[3];
- pnp_register_mem_resource(option,mem);
- return;
+ pnp_register_mem_resource(option, mem);
}
-static void
-pnpbios_parse_fixed_mem32_option(unsigned char *p, int size, struct pnp_option *option)
+static __init void pnpbios_parse_fixed_mem32_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
- struct pnp_mem * mem;
+ struct pnp_mem *mem;
+
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
if (!mem)
return;
mem->size = (p[11] << 24) | (p[10] << 16) | (p[9] << 8) | p[8];
mem->align = 0;
mem->flags = p[3];
- pnp_register_mem_resource(option,mem);
- return;
+ pnp_register_mem_resource(option, mem);
}
-static void
-pnpbios_parse_irq_option(unsigned char *p, int size, struct pnp_option *option)
+static __init void pnpbios_parse_irq_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
- struct pnp_irq * irq;
+ struct pnp_irq *irq;
unsigned long bits;
irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
irq->flags = p[3];
else
irq->flags = IORESOURCE_IRQ_HIGHEDGE;
- pnp_register_irq_resource(option,irq);
- return;
+ pnp_register_irq_resource(option, irq);
}
-static void
-pnpbios_parse_dma_option(unsigned char *p, int size, struct pnp_option *option)
+static __init void pnpbios_parse_dma_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
- struct pnp_dma * dma;
+ 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;
+ pnp_register_dma_resource(option, dma);
}
-static void
-pnpbios_parse_port_option(unsigned char *p, int size, struct pnp_option *option)
+static __init void pnpbios_parse_port_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
- struct pnp_port * port;
+ struct pnp_port *port;
+
port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
if (!port)
return;
port->align = p[6];
port->size = p[7];
port->flags = p[1] ? PNP_PORT_FLAG_16BITADDR : 0;
- pnp_register_port_resource(option,port);
- return;
+ pnp_register_port_resource(option, port);
}
-static void
-pnpbios_parse_fixed_port_option(unsigned char *p, int size, struct pnp_option *option)
+static __init void pnpbios_parse_fixed_port_option(unsigned char *p, int size,
+ struct pnp_option *option)
{
- struct pnp_port * port;
+ struct pnp_port *port;
+
port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
if (!port)
return;
port->size = p[3];
port->align = 0;
port->flags = PNP_PORT_FLAG_FIXED;
- pnp_register_port_resource(option,port);
- return;
+ pnp_register_port_resource(option, port);
}
-static unsigned char *
-pnpbios_parse_resource_option_data(unsigned char * p, unsigned char * end, struct pnp_dev *dev)
+static __init unsigned char *
+pnpbios_parse_resource_option_data(unsigned char *p, unsigned char *end,
+ struct pnp_dev *dev)
{
unsigned int len, tag;
int priority = 0;
while ((char *)p < (char *)end) {
/* determine the type of tag */
- if (p[0] & LARGE_TAG) { /* large tag */
+ if (p[0] & LARGE_TAG) { /* large tag */
len = (p[2] << 8) | p[1];
tag = p[0];
- } else { /* small tag */
+ } else { /* small tag */
len = p[0] & 0x07;
- tag = ((p[0]>>3) & 0x0f);
+ tag = ((p[0] >> 3) & 0x0f);
}
switch (tag) {
if (len != 0)
goto len_err;
if (option_independent == option)
- printk(KERN_WARNING "PnPBIOS: Missing SMALL_TAG_STARTDEP tag\n");
+ printk(KERN_WARNING
+ "PnPBIOS: Missing SMALL_TAG_STARTDEP tag\n");
option = option_independent;
break;
case SMALL_TAG_END:
- return p + 2;
+ return p + 2;
- default: /* an unkown tag */
- len_err:
- printk(KERN_ERR "PnPBIOS: Unknown tag '0x%x', length '%d'.\n", tag, len);
+ default: /* an unkown tag */
+len_err:
+ printk(KERN_ERR
+ "PnPBIOS: Unknown tag '0x%x', length '%d'.\n",
+ tag, len);
break;
}
p += len + 1;
}
- printk(KERN_ERR "PnPBIOS: Resource structure does not contain an end tag.\n");
+ printk(KERN_ERR
+ "PnPBIOS: Resource structure does not contain an end tag.\n");
return NULL;
}
-
/*
* Compatible Device IDs
*/
#define HEX(id,a) hex[((id)>>a) & 15]
#define CHAR(id,a) (0x40 + (((id)>>a) & 31))
-//
void pnpid32_to_pnpid(u32 id, char *str)
{
id = be32_to_cpu(id);
str[0] = CHAR(id, 26);
str[1] = CHAR(id, 21);
- str[2] = CHAR(id,16);
+ str[2] = CHAR(id, 16);
str[3] = HEX(id, 12);
str[4] = HEX(id, 8);
str[5] = HEX(id, 4);
str[6] = HEX(id, 0);
str[7] = '\0';
-
- return;
}
-//
+
#undef CHAR
#undef HEX
-static unsigned char *
-pnpbios_parse_compatible_ids(unsigned char *p, unsigned char *end, struct pnp_dev *dev)
+static unsigned char *pnpbios_parse_compatible_ids(unsigned char *p,
+ unsigned char *end,
+ struct pnp_dev *dev)
{
int len, tag;
char id[8];
while ((char *)p < (char *)end) {
/* determine the type of tag */
- if (p[0] & LARGE_TAG) { /* large tag */
+ if (p[0] & LARGE_TAG) { /* large tag */
len = (p[2] << 8) | p[1];
tag = p[0];
- } else { /* small tag */
+ } else { /* small tag */
len = p[0] & 0x07;
- tag = ((p[0]>>3) & 0x0f);
+ tag = ((p[0] >> 3) & 0x0f);
}
switch (tag) {
case LARGE_TAG_ANSISTR:
- strncpy(dev->name, p + 3, len >= PNP_NAME_LEN ? PNP_NAME_LEN - 2 : len);
- dev->name[len >= PNP_NAME_LEN ? PNP_NAME_LEN - 1 : len] = '\0';
+ strncpy(dev->name, p + 3,
+ len >= PNP_NAME_LEN ? PNP_NAME_LEN - 2 : len);
+ dev->name[len >=
+ PNP_NAME_LEN ? PNP_NAME_LEN - 1 : len] = '\0';
break;
- case SMALL_TAG_COMPATDEVID: /* compatible ID */
+ case SMALL_TAG_COMPATDEVID: /* compatible ID */
if (len != 4)
goto len_err;
- dev_id = kzalloc(sizeof (struct pnp_id), GFP_KERNEL);
+ dev_id = kzalloc(sizeof(struct pnp_id), GFP_KERNEL);
if (!dev_id)
return NULL;
- pnpid32_to_pnpid(p[1] | p[2] << 8 | p[3] << 16 | p[4] << 24,id);
+ pnpid32_to_pnpid(p[1] | p[2] << 8 | p[3] << 16 | p[4] <<
+ 24, id);
memcpy(&dev_id->id, id, 7);
pnp_add_id(dev_id, dev);
break;
case SMALL_TAG_END:
p = p + 2;
- return (unsigned char *)p;
+ return (unsigned char *)p;
break;
- default: /* an unkown tag */
- len_err:
- printk(KERN_ERR "PnPBIOS: Unknown tag '0x%x', length '%d'.\n", tag, len);
+ default: /* an unkown tag */
+len_err:
+ printk(KERN_ERR
+ "PnPBIOS: Unknown tag '0x%x', length '%d'.\n",
+ tag, len);
break;
}
p += len + 1;
}
- printk(KERN_ERR "PnPBIOS: Resource structure does not contain an end tag.\n");
+ printk(KERN_ERR
+ "PnPBIOS: Resource structure does not contain an end tag.\n");
return NULL;
}
-
/*
* Allocated Resource Encoding
*/
-static void pnpbios_encode_mem(unsigned char *p, struct resource * res)
+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)
+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;
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;
+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;
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)
+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)
+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)
+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)
+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, unsigned char * end, struct pnp_resource_table * res)
+static unsigned char *pnpbios_encode_allocated_resource_data(unsigned char *p,
+ unsigned char *end,
+ struct
+ pnp_resource_table
+ *res)
{
unsigned int len, tag;
int port = 0, irq = 0, dma = 0, mem = 0;
while ((char *)p < (char *)end) {
/* determine the type of tag */
- if (p[0] & LARGE_TAG) { /* large tag */
+ if (p[0] & LARGE_TAG) { /* large tag */
len = (p[2] << 8) | p[1];
tag = p[0];
- } else { /* small tag */
+ } else { /* small tag */
len = p[0] & 0x07;
- tag = ((p[0]>>3) & 0x0f);
+ tag = ((p[0] >> 3) & 0x0f);
}
switch (tag) {
case SMALL_TAG_END:
p = p + 2;
- return (unsigned char *)p;
+ return (unsigned char *)p;
break;
- default: /* an unkown tag */
- len_err:
- printk(KERN_ERR "PnPBIOS: Unknown tag '0x%x', length '%d'.\n", tag, len);
+ default: /* an unkown tag */
+len_err:
+ printk(KERN_ERR
+ "PnPBIOS: Unknown tag '0x%x', length '%d'.\n",
+ tag, len);
break;
}
p += len + 1;
}
- printk(KERN_ERR "PnPBIOS: Resource structure does not contain an end tag.\n");
+ printk(KERN_ERR
+ "PnPBIOS: Resource structure does not contain an end tag.\n");
return NULL;
}
-
/*
* Core Parsing Functions
*/
-int
-pnpbios_parse_data_stream(struct pnp_dev *dev, struct pnp_bios_node * node)
+int __init 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);
+ 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;
- p = pnpbios_parse_resource_option_data(p,end,dev);
+ p = pnpbios_parse_resource_option_data(p, end, dev);
if (!p)
return -EIO;
- p = pnpbios_parse_compatible_ids(p,end,dev);
+ p = pnpbios_parse_compatible_ids(p, end, dev);
if (!p)
return -EIO;
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);
+ 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);
+ 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;
return 0;
projects / linux-2.6 / blobdiff