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[PATCH] pcmcia: use bitfield instead of p_state and state

Browse source 
Instead of the two status values struct pcmcia_device->p_state and state,
use descriptive bitfields. Most value-checking in drivers was invalid, as
the core now only calls the ->remove() (a.k.a. detach) function in case the
attachement _and_ configuration was successful.

Signed-off-by: Dominik Brodowski <[email protected]>
This commit is contained in:
Dominik Brodowski 2006-03-02 00:09:29 +01:00
commit e2d4096365
49 changed files with 335 additions and 682 deletions
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40
include/pcmcia/ds.h
View file

@ -96,6 +96,7 @@ typedef union ds_ioctl_arg_t {
#ifdef __KERNEL__
#include <linux/device.h>
#include <pcmcia/ss.h>
typedef struct dev_node_t {
char dev_name[DEV_NAME_LEN];
@ -103,15 +104,11 @@ typedef struct dev_node_t {
struct dev_node_t *next;
} dev_node_t;
/* Flags for device state */
#define DEV_PRESENT 0x01
#define DEV_CONFIG 0x02
#define DEV_SUSPEND_NORELEASE 0x04
#define DEV_CONFIG_PENDING 0x10
#define DEV_BUSY 0x80
#define pcmcia_dev_present(p_dev) \
(p_dev->socket->pcmcia_state.present)
#define DEV_OK(l) \
((l) && ((l->state & ~DEV_BUSY) == (DEV_CONFIG|DEV_PRESENT)))
((l) && (!l->suspended) && pcmcia_dev_present(l))
struct pcmcia_socket;
@ -133,6 +130,7 @@ struct pcmcia_driver {
int pcmcia_register_driver(struct pcmcia_driver *driver);
void pcmcia_unregister_driver(struct pcmcia_driver *driver);
struct pcmcia_device {
/* the socket and the device_no [for multifunction devices]
uniquely define a pcmcia_device */
@ -151,25 +149,32 @@ struct pcmcia_device {
/* deprecated, will be cleaned up soon */
dev_node_t *dev_node;
u_int state;
u_int open;
io_req_t io;
irq_req_t irq;
config_req_t conf;
window_handle_t win;
void *priv;
u_int p_state;
/* Is the device suspended? */
u16 suspended:1;
u8 suspended:1;
u8 reserved:3;
/* Flags whether io, irq, win configurations were
* requested, and whether the configuration is "locked" */
u16 _irq:1;
u16 _io:1;
u16 _win:4;
u16 _locked:1;
/* Flag whether a "fuzzy" func_id based match is
* allowed. */
u16 allow_func_id_match:1;
/* information about this device */
u8 has_manf_id:1;
u8 has_card_id:1;
u8 has_func_id:1;
u16 has_manf_id:1;
u16 has_card_id:1;
u16 has_func_id:1;
u8 allow_func_id_match:1;
u16 reserved:4;
u8 func_id;
u16 manf_id;
@ -183,6 +188,9 @@ struct pcmcia_device {
/* device driver wanted by cardmgr */
struct pcmcia_driver * cardmgr;
#endif
/* data private to drivers */
void *priv;
};
#define to_pcmcia_dev(n) container_of(n, struct pcmcia_device, dev)