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pcmcia: carve out ioctl adjust function to pcmcia_ioctl

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Let pcmcia_ioctl interact with rsrc_nonstatic using functions which
rsrc_nonstatic.c has to use anyway.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski 2008-06-19 19:02:52 +02:00
parent 635416ef39
commit c502380170
4 changed files with 102 additions and 102 deletions
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90
drivers/pcmcia/pcmcia_ioctl.c
View File

@ -138,6 +138,94 @@ static int proc_read_drivers(char *buf, char **start, off_t pos,
}
#endif
#ifdef CONFIG_PCMCIA_PROBE
static int adjust_irq(struct pcmcia_socket *s, adjust_t *adj)
{
int irq;
u32 mask;
irq = adj->resource.irq.IRQ;
if ((irq < 0) || (irq > 15))
return CS_BAD_IRQ;
if (adj->Action != REMOVE_MANAGED_RESOURCE)
return 0;
mask = 1 << irq;
if (!(s->irq_mask & mask))
return 0;
s->irq_mask &= ~mask;
return 0;
}
#else
static inline int adjust_irq(struct pcmcia_socket *s, adjust_t *adj) {
return CS_SUCCESS;
}
#endif
static int pcmcia_adjust_resource_info(adjust_t *adj)
{
struct pcmcia_socket *s;
int ret = CS_UNSUPPORTED_FUNCTION;
unsigned long flags;
down_read(&pcmcia_socket_list_rwsem);
list_for_each_entry(s, &pcmcia_socket_list, socket_list) {
if (adj->Resource == RES_IRQ)
ret = adjust_irq(s, adj);
else if (s->resource_ops->add_io) {
unsigned long begin, end;
/* you can't use the old interface if the new
* one was used before */
spin_lock_irqsave(&s->lock, flags);
if ((s->resource_setup_new) &&
!(s->resource_setup_old)) {
spin_unlock_irqrestore(&s->lock, flags);
continue;
} else if (!(s->resource_setup_old))
s->resource_setup_old = 1;
spin_unlock_irqrestore(&s->lock, flags);
switch (adj->Resource) {
case RES_MEMORY_RANGE:
begin = adj->resource.memory.Base;
end = adj->resource.memory.Base + adj->resource.memory.Size - 1;
if (s->resource_ops->add_mem)
ret =s->resource_ops->add_mem(s, adj->Action, begin, end);
case RES_IO_RANGE:
begin = adj->resource.io.BasePort;
end = adj->resource.io.BasePort + adj->resource.io.NumPorts - 1;
if (s->resource_ops->add_io)
ret = s->resource_ops->add_io(s, adj->Action, begin, end);
}
if (!ret) {
/* as there's no way we know this is the
* last call to adjust_resource_info, we
* always need to assume this is the latest
* one... */
spin_lock_irqsave(&s->lock, flags);
s->resource_setup_done = 1;
spin_unlock_irqrestore(&s->lock, flags);
}
}
}
up_read(&pcmcia_socket_list_rwsem);
return (ret);
}
/*======================================================================
These manage a ring buffer of events pending for one user process
@ -546,8 +634,6 @@ static u_int ds_poll(struct file *file, poll_table *wait)
/*====================================================================*/
extern int pcmcia_adjust_resource_info(adjust_t *adj);
static int ds_ioctl(struct inode * inode, struct file * file,
u_int cmd, u_long arg)
{

86
drivers/pcmcia/rsrc_mgr.c
View File

@ -21,86 +21,6 @@
#include "cs_internal.h"
#ifdef CONFIG_PCMCIA_IOCTL
#ifdef CONFIG_PCMCIA_PROBE
static int adjust_irq(struct pcmcia_socket *s, adjust_t *adj)
{
int irq;
u32 mask;
irq = adj->resource.irq.IRQ;
if ((irq < 0) || (irq > 15))
return CS_BAD_IRQ;
if (adj->Action != REMOVE_MANAGED_RESOURCE)
return 0;
mask = 1 << irq;
if (!(s->irq_mask & mask))
return 0;
s->irq_mask &= ~mask;
return 0;
}
#else
static inline int adjust_irq(struct pcmcia_socket *s, adjust_t *adj) {
return CS_SUCCESS;
}
#endif
int pcmcia_adjust_resource_info(adjust_t *adj)
{
struct pcmcia_socket *s;
int ret = CS_UNSUPPORTED_FUNCTION;
unsigned long flags;
down_read(&pcmcia_socket_list_rwsem);
list_for_each_entry(s, &pcmcia_socket_list, socket_list) {
if (adj->Resource == RES_IRQ)
ret = adjust_irq(s, adj);
else if (s->resource_ops->adjust_resource) {
/* you can't use the old interface if the new
* one was used before */
spin_lock_irqsave(&s->lock, flags);
if ((s->resource_setup_new) &&
!(s->resource_setup_old)) {
spin_unlock_irqrestore(&s->lock, flags);
continue;
} else if (!(s->resource_setup_old))
s->resource_setup_old = 1;
spin_unlock_irqrestore(&s->lock, flags);
ret = s->resource_ops->adjust_resource(s, adj);
if (!ret) {
/* as there's no way we know this is the
* last call to adjust_resource_info, we
* always need to assume this is the latest
* one... */
spin_lock_irqsave(&s->lock, flags);
s->resource_setup_done = 1;
spin_unlock_irqrestore(&s->lock, flags);
}
}
}
up_read(&pcmcia_socket_list_rwsem);
return (ret);
}
EXPORT_SYMBOL(pcmcia_adjust_resource_info);
#endif
int pcmcia_validate_mem(struct pcmcia_socket *s)
{
if (s->resource_ops->validate_mem)
@ -164,7 +84,8 @@ struct pccard_resource_ops pccard_static_ops = {
.adjust_io_region = NULL,
.find_io = NULL,
.find_mem = NULL,
.adjust_resource = NULL,
.add_io = NULL,
.add_mem = NULL,
.init = static_init,
.exit = NULL,
};
@ -264,7 +185,8 @@ struct pccard_resource_ops pccard_iodyn_ops = {
.adjust_io_region = iodyn_adjust_io_region,
.find_io = iodyn_find_io_region,
.find_mem = NULL,
.adjust_resource = NULL,
.add_io = NULL,
.add_mem = NULL,
.init = static_init,
.exit = NULL,
};

18
drivers/pcmcia/rsrc_nonstatic.c
View File

@ -766,21 +766,6 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long
}
static int nonstatic_adjust_resource_info(struct pcmcia_socket *s, adjust_t *adj)
{
unsigned long end;
switch (adj->Resource) {
case RES_MEMORY_RANGE:
end = adj->resource.memory.Base + adj->resource.memory.Size - 1;
return adjust_memory(s, adj->Action, adj->resource.memory.Base, end);
case RES_IO_RANGE:
end = adj->resource.io.BasePort + adj->resource.io.NumPorts - 1;
return adjust_io(s, adj->Action, adj->resource.io.BasePort, end);
}
return CS_UNSUPPORTED_FUNCTION;
}
#ifdef CONFIG_PCI
static int nonstatic_autoadd_resources(struct pcmcia_socket *s)
{
@ -889,7 +874,8 @@ struct pccard_resource_ops pccard_nonstatic_ops = {
.adjust_io_region = nonstatic_adjust_io_region,
.find_io = nonstatic_find_io_region,
.find_mem = nonstatic_find_mem_region,
.adjust_resource = nonstatic_adjust_resource_info,
.add_io = adjust_io,
.add_mem = adjust_memory,
.init = nonstatic_init,
.exit = nonstatic_release_resource_db,
};

10
include/pcmcia/ss.h
View File

@ -136,8 +136,14 @@ struct pccard_resource_ops {
struct resource* (*find_mem) (unsigned long base, unsigned long num,
unsigned long align, int low,
struct pcmcia_socket *s);
int (*adjust_resource) (struct pcmcia_socket *s,
adjust_t *adj);
int (*add_io) (struct pcmcia_socket *s,
unsigned int action,
unsigned long r_start,
unsigned long r_end);
int (*add_mem) (struct pcmcia_socket *s,
unsigned int action,
unsigned long r_start,
unsigned long r_end);
int (*init) (struct pcmcia_socket *s);
void (*exit) (struct pcmcia_socket *s);
};