drivers/pcmcia/cs_internal.h

   1 /*
   2  * cs_internal.h
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * The initial developer of the original code is David A. Hinds
   9  * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  10  * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  11  *
  12  * (C) 1999             David A. Hinds
  13  */
  14
  15 #ifndef _LINUX_CS_INTERNAL_H
  16 #define _LINUX_CS_INTERNAL_H
  17
  18 #include <linux/kref.h>
  19
  20 /* Flags in client state */
  21 #define CLIENT_CONFIG_LOCKED    0x0001
  22 #define CLIENT_IRQ_REQ          0x0002
  23 #define CLIENT_IO_REQ           0x0004
  24 #define CLIENT_UNBOUND          0x0008
  25 #define CLIENT_STALE            0x0010
  26 #define CLIENT_WIN_REQ(i)       (0x1<<(i))
  27 #define CLIENT_CARDBUS          0x8000
  28
  29 /* Each card function gets one of these guys */
  30 typedef struct config_t {
  31         struct kref     ref;
  32     u_int               state;
  33     u_int               Attributes;
  34     u_int               IntType;
  35     u_int               ConfigBase;
  36     u_char              Status, Pin, Copy, Option, ExtStatus;
  37     u_int               CardValues;
  38     io_req_t            io;
  39     struct {
  40         u_int           Attributes;
  41     } irq;
  42 } config_t;
  43
  44 struct cis_cache_entry {
  45         struct list_head        node;
  46         unsigned int            addr;
  47         unsigned int            len;
  48         unsigned int            attr;
  49         unsigned char           cache[0];
  50 };
  51
  52 /* Flags in config state */
  53 #define CONFIG_LOCKED           0x01
  54 #define CONFIG_IRQ_REQ          0x02
  55 #define CONFIG_IO_REQ           0x04
  56
  57 /* Flags in socket state */
  58 #define SOCKET_PRESENT          0x0008
  59 #define SOCKET_INUSE            0x0010
  60 #define SOCKET_SUSPEND          0x0080
  61 #define SOCKET_WIN_REQ(i)       (0x0100<<(i))
  62 #define SOCKET_REGION_INFO      0x4000
  63 #define SOCKET_CARDBUS          0x8000
  64 #define SOCKET_CARDBUS_CONFIG   0x10000
  65
  66 static inline int cs_socket_get(struct pcmcia_socket *skt)
  67 {
  68         int ret;
  69
  70         WARN_ON(skt->state & SOCKET_INUSE);
  71
  72         ret = try_module_get(skt->owner);
  73         if (ret)
  74                 skt->state |= SOCKET_INUSE;
  75         return ret;
  76 }
  77
  78 static inline void cs_socket_put(struct pcmcia_socket *skt)
  79 {
  80         if (skt->state & SOCKET_INUSE) {
  81                 skt->state &= ~SOCKET_INUSE;
  82                 module_put(skt->owner);
  83         }
  84 }
  85
  86 /* In cardbus.c */
  87 int cb_alloc(struct pcmcia_socket *s);
  88 void cb_free(struct pcmcia_socket *s);
  89 int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, void *ptr);
  90
  91 /* In cistpl.c */
  92 int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
  93                  u_int addr, u_int len, void *ptr);
  94 void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
  95                    u_int addr, u_int len, void *ptr);
  96 void release_cis_mem(struct pcmcia_socket *s);
  97 void destroy_cis_cache(struct pcmcia_socket *s);
  98 int verify_cis_cache(struct pcmcia_socket *s);
  99 int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t code, void *parse);
 100
 101 /* In rsrc_mgr */
 102 int pcmcia_validate_mem(struct pcmcia_socket *s);
 103 struct resource *pcmcia_find_io_region(unsigned long base, int num, unsigned long align,
 104                    struct pcmcia_socket *s);
 105 int pcmcia_adjust_io_region(struct resource *res, unsigned long r_start,
 106                      unsigned long r_end, struct pcmcia_socket *s);
 107 struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
 108                     int low, struct pcmcia_socket *s);
 109 void release_resource_db(struct pcmcia_socket *s);
 110
 111 /* In socket_sysfs.c */
 112 extern int pccard_sysfs_add_socket(struct device *dev);
 113 extern void pccard_sysfs_remove_socket(struct device *dev);
 114
 115 /* In cs.c */
 116 extern struct rw_semaphore pcmcia_socket_list_rwsem;
 117 extern struct list_head pcmcia_socket_list;
 118 int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, int idx, win_req_t *req);
 119 int pccard_get_configuration_info(struct pcmcia_socket *s, struct pcmcia_device *p_dev, config_info_t *config);
 120 int pccard_reset_card(struct pcmcia_socket *skt);
 121
 122
 123 struct pcmcia_callback{
 124         struct module   *owner;
 125         int             (*event) (struct pcmcia_socket *s, event_t event, int priority);
 126         void            (*requery) (struct pcmcia_socket *s, int new_cis);
 127         int             (*suspend) (struct pcmcia_socket *s);
 128         int             (*resume) (struct pcmcia_socket *s);
 129 };
 130
 131 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
 132
 133 #define cs_socket_name(skt)     ((skt)->dev.bus_id)
 134
 135 #ifdef DEBUG
 136 extern int cs_debug_level(int);
 137
 138 #define cs_dbg(skt, lvl, fmt, arg...) do {              \
 139         if (cs_debug_level(lvl))                        \
 140                 printk(KERN_DEBUG "cs: %s: " fmt,       \
 141                        cs_socket_name(skt) , ## arg);   \
 142 } while (0)
 143
 144 #else
 145 #define cs_dbg(skt, lvl, fmt, arg...) do { } while (0)
 146 #endif
 147
 148 #define cs_err(skt, fmt, arg...) \
 149         printk(KERN_ERR "cs: %s: " fmt, (skt)->dev.bus_id , ## arg)
 150
 151 #endif /* _LINUX_CS_INTERNAL_H */