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e2d4096365
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 <linux@dominikbrodowski.net>
164 lines
4.6 KiB
C
164 lines
4.6 KiB
C
/*
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* cs_internal.h
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*
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* (C) 1999 David A. Hinds
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*/
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#ifndef _LINUX_CS_INTERNAL_H
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#define _LINUX_CS_INTERNAL_H
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#include <linux/kref.h>
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/* Flags in client state */
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#define CLIENT_CONFIG_LOCKED 0x0001
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#define CLIENT_IRQ_REQ 0x0002
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#define CLIENT_IO_REQ 0x0004
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#define CLIENT_UNBOUND 0x0008
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#define CLIENT_STALE 0x0010
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#define CLIENT_WIN_REQ(i) (0x1<<(i))
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#define CLIENT_CARDBUS 0x8000
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#define REGION_MAGIC 0xE3C9
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typedef struct region_t {
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u_short region_magic;
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u_short state;
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dev_info_t dev_info;
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struct pcmcia_device *mtd;
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u_int MediaID;
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region_info_t info;
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} region_t;
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#define REGION_STALE 0x01
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/* Each card function gets one of these guys */
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typedef struct config_t {
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struct kref ref;
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u_int state;
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u_int Attributes;
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u_int IntType;
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u_int ConfigBase;
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u_char Status, Pin, Copy, Option, ExtStatus;
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u_int CardValues;
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io_req_t io;
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struct {
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u_int Attributes;
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} irq;
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} config_t;
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struct cis_cache_entry {
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struct list_head node;
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unsigned int addr;
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unsigned int len;
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unsigned int attr;
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unsigned char cache[0];
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};
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/* Flags in config state */
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#define CONFIG_LOCKED 0x01
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#define CONFIG_IRQ_REQ 0x02
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#define CONFIG_IO_REQ 0x04
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/* Flags in socket state */
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#define SOCKET_PRESENT 0x0008
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#define SOCKET_INUSE 0x0010
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#define SOCKET_SUSPEND 0x0080
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#define SOCKET_WIN_REQ(i) (0x0100<<(i))
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#define SOCKET_REGION_INFO 0x4000
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#define SOCKET_CARDBUS 0x8000
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#define SOCKET_CARDBUS_CONFIG 0x10000
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static inline int cs_socket_get(struct pcmcia_socket *skt)
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{
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int ret;
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WARN_ON(skt->state & SOCKET_INUSE);
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ret = try_module_get(skt->owner);
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if (ret)
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skt->state |= SOCKET_INUSE;
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return ret;
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}
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static inline void cs_socket_put(struct pcmcia_socket *skt)
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{
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if (skt->state & SOCKET_INUSE) {
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skt->state &= ~SOCKET_INUSE;
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module_put(skt->owner);
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}
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}
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/* In cardbus.c */
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int cb_alloc(struct pcmcia_socket *s);
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void cb_free(struct pcmcia_socket *s);
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int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, void *ptr);
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/* In cistpl.c */
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int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
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u_int addr, u_int len, void *ptr);
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void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
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u_int addr, u_int len, void *ptr);
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void release_cis_mem(struct pcmcia_socket *s);
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void destroy_cis_cache(struct pcmcia_socket *s);
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int verify_cis_cache(struct pcmcia_socket *s);
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int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t code, void *parse);
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/* In rsrc_mgr */
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int pcmcia_validate_mem(struct pcmcia_socket *s);
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struct resource *pcmcia_find_io_region(unsigned long base, int num, unsigned long align,
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struct pcmcia_socket *s);
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int pcmcia_adjust_io_region(struct resource *res, unsigned long r_start,
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unsigned long r_end, struct pcmcia_socket *s);
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struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
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int low, struct pcmcia_socket *s);
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void release_resource_db(struct pcmcia_socket *s);
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/* In socket_sysfs.c */
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extern struct class_interface pccard_sysfs_interface;
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/* In cs.c */
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extern struct rw_semaphore pcmcia_socket_list_rwsem;
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extern struct list_head pcmcia_socket_list;
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int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, int idx, win_req_t *req);
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int pccard_get_configuration_info(struct pcmcia_socket *s, struct pcmcia_device *p_dev, config_info_t *config);
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int pccard_reset_card(struct pcmcia_socket *skt);
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int pccard_get_status(struct pcmcia_socket *s, struct pcmcia_device *p_dev, cs_status_t *status);
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struct pcmcia_callback{
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struct module *owner;
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int (*event) (struct pcmcia_socket *s, event_t event, int priority);
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void (*requery) (struct pcmcia_socket *s);
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int (*suspend) (struct pcmcia_socket *s);
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int (*resume) (struct pcmcia_socket *s);
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};
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int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
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#define cs_socket_name(skt) ((skt)->dev.class_id)
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#ifdef DEBUG
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extern int cs_debug_level(int);
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#define cs_dbg(skt, lvl, fmt, arg...) do { \
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if (cs_debug_level(lvl)) \
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printk(KERN_DEBUG "cs: %s: " fmt, \
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cs_socket_name(skt) , ## arg); \
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} while (0)
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#else
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#define cs_dbg(skt, lvl, fmt, arg...) do { } while (0)
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#endif
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#define cs_err(skt, fmt, arg...) \
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printk(KERN_ERR "cs: %s: " fmt, (skt)->dev.class_id , ## arg)
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#endif /* _LINUX_CS_INTERNAL_H */
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