OpenE2K/linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
0e0fad8f71
linux/include/pcmcia/ss.h
Dominik Brodowski 7fe908dd11 [PATCH] pcmcia: use mutexes instead of semaphores 
Use mutexes in the PCMICA core, as they suffice for what needs to be done.
Includes a bugfix from and Signed-off-by Andrew Morton.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:02:19 +02:00

306 lines
7.8 KiB
C
Raw Blame History

/*
* ss.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* The initial developer of the original code is David A. Hinds
* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
*/
#ifndef _LINUX_SS_H
#define _LINUX_SS_H
#include <linux/config.h>
#include <linux/device.h>
#include <linux/sched.h> /* task_struct, completion */
#include <linux/mutex.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/bulkmem.h>
#ifdef CONFIG_CARDBUS
#include <linux/pci.h>
#endif
/* Definitions for card status flags for GetStatus */
#define SS_WRPROT 0x0001
#define SS_CARDLOCK 0x0002
#define SS_EJECTION 0x0004
#define SS_INSERTION 0x0008
#define SS_BATDEAD 0x0010
#define SS_BATWARN 0x0020
#define SS_READY 0x0040
#define SS_DETECT 0x0080
#define SS_POWERON 0x0100
#define SS_GPI 0x0200
#define SS_STSCHG 0x0400
#define SS_CARDBUS 0x0800
#define SS_3VCARD 0x1000
#define SS_XVCARD 0x2000
#define SS_PENDING 0x4000
#define SS_ZVCARD 0x8000
/* InquireSocket capabilities */
#define SS_CAP_PAGE_REGS 0x0001
#define SS_CAP_VIRTUAL_BUS 0x0002
#define SS_CAP_MEM_ALIGN 0x0004
#define SS_CAP_STATIC_MAP 0x0008
#define SS_CAP_PCCARD 0x4000
#define SS_CAP_CARDBUS 0x8000
/* for GetSocket, SetSocket */
typedef struct socket_state_t {
u_int flags;
u_int csc_mask;
u_char Vcc, Vpp;
u_char io_irq;
} socket_state_t;
extern socket_state_t dead_socket;
/* Socket configuration flags */
#define SS_PWR_AUTO 0x0010
#define SS_IOCARD 0x0020
#define SS_RESET 0x0040
#define SS_DMA_MODE 0x0080
#define SS_SPKR_ENA 0x0100
#define SS_OUTPUT_ENA 0x0200
/* Flags for I/O port and memory windows */
#define MAP_ACTIVE 0x01
#define MAP_16BIT 0x02
#define MAP_AUTOSZ 0x04
#define MAP_0WS 0x08
#define MAP_WRPROT 0x10
#define MAP_ATTRIB 0x20
#define MAP_USE_WAIT 0x40
#define MAP_PREFETCH 0x80
/* Use this just for bridge windows */
#define MAP_IOSPACE 0x20
/* power hook operations */
#define HOOK_POWER_PRE 0x01
#define HOOK_POWER_POST 0x02
typedef struct pccard_io_map {
u_char map;
u_char flags;
u_short speed;
kio_addr_t start, stop;
} pccard_io_map;
typedef struct pccard_mem_map {
u_char map;
u_char flags;
u_short speed;
u_long static_start;
u_int card_start;
struct resource *res;
} pccard_mem_map;
typedef struct cb_bridge_map {
u_char map;
u_char flags;
u_int start, stop;
} cb_bridge_map;
/*
* Socket operations.
*/
struct pcmcia_socket;
struct pccard_operations {
int (*init)(struct pcmcia_socket *sock);
int (*suspend)(struct pcmcia_socket *sock);
int (*get_status)(struct pcmcia_socket *sock, u_int *value);
int (*set_socket)(struct pcmcia_socket *sock, socket_state_t *state);
int (*set_io_map)(struct pcmcia_socket *sock, struct pccard_io_map *io);
int (*set_mem_map)(struct pcmcia_socket *sock, struct pccard_mem_map *mem);
};
struct pccard_resource_ops {
int (*validate_mem) (struct pcmcia_socket *s);
int (*adjust_io_region) (struct resource *res,
unsigned long r_start,
unsigned long r_end,
struct pcmcia_socket *s);
struct resource* (*find_io) (unsigned long base, int num,
unsigned long align,
struct pcmcia_socket *s);
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 (*init) (struct pcmcia_socket *s);
void (*exit) (struct pcmcia_socket *s);
};
/* SS_CAP_STATIC_MAP */
extern struct pccard_resource_ops pccard_static_ops;
/* !SS_CAP_STATIC_MAP */
extern struct pccard_resource_ops pccard_nonstatic_ops;
/*
* Calls to set up low-level "Socket Services" drivers
*/
struct pcmcia_socket;
typedef struct io_window_t {
u_int Attributes;
kio_addr_t BasePort, NumPorts;
kio_addr_t InUse, Config;
struct resource *res;
} io_window_t;
#define WINDOW_MAGIC 0xB35C
typedef struct window_t {
u_short magic;
u_short index;
client_handle_t handle;
struct pcmcia_socket *sock;
pccard_mem_map ctl;
} window_t;
/* Maximum number of IO windows per socket */
#define MAX_IO_WIN 2
/* Maximum number of memory windows per socket */
#define MAX_WIN 4
struct config_t;
struct pcmcia_callback;
struct user_info_t;
struct pcmcia_socket {
struct module *owner;
spinlock_t lock;
socket_state_t socket;
u_int state;
u_short functions;
u_short lock_count;
pccard_mem_map cis_mem;
void __iomem *cis_virt;
struct {
u_int AssignedIRQ;
u_int Config;
} irq;
io_window_t io[MAX_IO_WIN];
window_t win[MAX_WIN];
struct list_head cis_cache;
u_int fake_cis_len;
char *fake_cis;
struct list_head socket_list;
struct completion socket_released;
/* deprecated */
unsigned int sock; /* socket number */
/* socket capabilities */
u_int features;
u_int irq_mask;
u_int map_size;
kio_addr_t io_offset;
u_char pci_irq;
struct pci_dev * cb_dev;
/* socket setup is done so resources should be able to be allocated. Only
* if set to 1, calls to find_{io,mem}_region are handled, and insertion
* events are actually managed by the PCMCIA layer.*/
u8 resource_setup_done:1;
/* is set to one if resource setup is done using adjust_resource_info() */
u8 resource_setup_old:1;
u8 resource_setup_new:1;
u8 reserved:5;
/* socket operations */
struct pccard_operations * ops;
struct pccard_resource_ops * resource_ops;
void * resource_data;
/* Zoom video behaviour is so chip specific its not worth adding
this to _ops */
void (*zoom_video)(struct pcmcia_socket *, int);
/* so is power hook */
int (*power_hook)(struct pcmcia_socket *sock, int operation);
#ifdef CONFIG_CARDBUS
/* allows tuning the CB bridge before loading driver for the CB card */
void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus);
#endif
/* state thread */
struct mutex skt_mutex; /* protects socket h/w state */
struct task_struct *thread;
struct completion thread_done;
wait_queue_head_t thread_wait;
spinlock_t thread_lock; /* protects thread_events */
unsigned int thread_events;
/* pcmcia (16-bit) */
struct pcmcia_callback *callback;
#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
struct list_head devices_list; /* PCMCIA devices */
u8 device_count; /* the number of devices, used
* only internally and subject
* to incorrectness and change */
struct {
u8 present:1, /* PCMCIA card is present in socket */
busy:1, /* "master" ioctl is used */
dead:1, /* pcmcia module is being unloaded */
device_add_pending:1, /* a pseudo-multifunction-device
* add event is pending */
reserved:4;
} pcmcia_state;
struct work_struct device_add; /* for adding further pseudo-multifunction
* devices */
#ifdef CONFIG_PCMCIA_IOCTL
struct user_info_t *user;
wait_queue_head_t queue;
#endif
#endif
/* cardbus (32-bit) */
#ifdef CONFIG_CARDBUS
struct resource * cb_cis_res;
void __iomem *cb_cis_virt;
#endif
/* socket device */
struct class_device dev;
void *driver_data; /* data internal to the socket driver */
};
struct pcmcia_socket * pcmcia_get_socket_by_nr(unsigned int nr);
extern void pcmcia_parse_events(struct pcmcia_socket *socket, unsigned int events);
extern int pcmcia_register_socket(struct pcmcia_socket *socket);
extern void pcmcia_unregister_socket(struct pcmcia_socket *socket);
extern struct class pcmcia_socket_class;
/* socket drivers are expected to use these callbacks in their .drv struct */
extern int pcmcia_socket_dev_suspend(struct device *dev, pm_message_t state);
extern int pcmcia_socket_dev_resume(struct device *dev);
#endif /* _LINUX_SS_H */
Reference in New Issue View Git Blame Copy Permalink