drivers/pcmcia/cs_internal.h

   1 /*
   2  * cs_internal.h -- definitions internal to the PCMCIA core modules
   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  * (C) 2003 - 2008      Dominik Brodowski
  14  *
  15  *
  16  * This file contains definitions _only_ needed by the PCMCIA core modules.
  17  * It must not be included by PCMCIA socket drivers or by PCMCIA device
  18  * drivers.
  19  */
  20
  21 #ifndef _LINUX_CS_INTERNAL_H
  22 #define _LINUX_CS_INTERNAL_H
  23
  24 #include <linux/kref.h>
  25
  26 /* Flags in client state */
  27 #define CLIENT_WIN_REQ(i)       (0x1<<(i))
  28
  29 /* Each card function gets one of these guys */
  30 typedef struct config_t {
  31         struct kref     ref;
  32         unsigned int    state;
  33         unsigned int    Attributes;
  34         unsigned int    IntType;
  35         unsigned int    ConfigBase;
  36         unsigned char   Status, Pin, Copy, Option, ExtStatus;
  37         unsigned int    CardValues;
  38         io_req_t        io;
  39         struct {
  40                 u_int   Attributes;
  41         } irq;
  42 } config_t;
  43
  44
  45 struct cis_cache_entry {
  46         struct list_head        node;
  47         unsigned int            addr;
  48         unsigned int            len;
  49         unsigned int            attr;
  50         unsigned char           cache[0];
  51 };
  52
  53 struct pccard_resource_ops {
  54         int     (*validate_mem)         (struct pcmcia_socket *s);
  55         int     (*find_io)              (struct pcmcia_socket *s,
  56                                          unsigned int attr,
  57                                          unsigned int *base,
  58                                          unsigned int num,
  59                                          unsigned int align);
  60         struct resource* (*find_mem)    (unsigned long base, unsigned long num,
  61                                          unsigned long align, int low,
  62                                          struct pcmcia_socket *s);
  63         int     (*add_io)               (struct pcmcia_socket *s,
  64                                          unsigned int action,
  65                                          unsigned long r_start,
  66                                          unsigned long r_end);
  67         int     (*add_mem)              (struct pcmcia_socket *s,
  68                                          unsigned int action,
  69                                          unsigned long r_start,
  70                                          unsigned long r_end);
  71         int     (*init)                 (struct pcmcia_socket *s);
  72         void    (*exit)                 (struct pcmcia_socket *s);
  73 };
  74
  75 /* Flags in config state */
  76 #define CONFIG_LOCKED           0x01
  77 #define CONFIG_IRQ_REQ          0x02
  78 #define CONFIG_IO_REQ           0x04
  79
  80 /* Flags in socket state */
  81 #define SOCKET_PRESENT          0x0008
  82 #define SOCKET_INUSE            0x0010
  83 #define SOCKET_SUSPEND          0x0080
  84 #define SOCKET_WIN_REQ(i)       (0x0100<<(i))
  85 #define SOCKET_CARDBUS          0x8000
  86 #define SOCKET_CARDBUS_CONFIG   0x10000
  87
  88
  89 /*
  90  * Stuff internal to module "pcmcia_rsrc":
  91  */
  92 extern int static_init(struct pcmcia_socket *s);
  93 extern struct resource *pcmcia_make_resource(unsigned long start,
  94                                         unsigned long end,
  95                                         int flags, const char *name);
  96
  97 /*
  98  * Stuff internal to module "pcmcia_core":
  99  */
 100
 101 /* socket_sysfs.c */
 102 extern int pccard_sysfs_add_socket(struct device *dev);
 103 extern void pccard_sysfs_remove_socket(struct device *dev);
 104
 105 /* cardbus.c */
 106 int cb_alloc(struct pcmcia_socket *s);
 107 void cb_free(struct pcmcia_socket *s);
 108
 109
 110
 111 /*
 112  * Stuff exported by module "pcmcia_core" to module "pcmcia"
 113  */
 114
 115 struct pcmcia_callback{
 116         struct module   *owner;
 117         int             (*event) (struct pcmcia_socket *s,
 118                                   event_t event, int priority);
 119         void            (*requery) (struct pcmcia_socket *s);
 120         int             (*validate) (struct pcmcia_socket *s, unsigned int *i);
 121         int             (*suspend) (struct pcmcia_socket *s);
 122         int             (*resume) (struct pcmcia_socket *s);
 123 };
 124
 125 /* cs.c */
 126 extern struct rw_semaphore pcmcia_socket_list_rwsem;
 127 extern struct list_head pcmcia_socket_list;
 128 extern struct class pcmcia_socket_class;
 129
 130 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
 131 struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr);
 132
 133 void pcmcia_parse_uevents(struct pcmcia_socket *socket, unsigned int events);
 134 #define PCMCIA_UEVENT_EJECT     0x0001
 135 #define PCMCIA_UEVENT_INSERT    0x0002
 136 #define PCMCIA_UEVENT_SUSPEND   0x0004
 137 #define PCMCIA_UEVENT_RESUME    0x0008
 138 #define PCMCIA_UEVENT_REQUERY   0x0010
 139
 140 struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt);
 141 void pcmcia_put_socket(struct pcmcia_socket *skt);
 142
 143 /*
 144  * Stuff internal to module "pcmcia".
 145  */
 146 /* ds.c */
 147 extern struct bus_type pcmcia_bus_type;
 148
 149 /* pcmcia_resource.c */
 150 extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
 151 extern int pcmcia_validate_mem(struct pcmcia_socket *s);
 152 extern struct resource *pcmcia_find_mem_region(u_long base,
 153                                                u_long num,
 154                                                u_long align,
 155                                                int low,
 156                                                struct pcmcia_socket *s);
 157
 158 void pcmcia_cleanup_irq(struct pcmcia_socket *s);
 159 int pcmcia_setup_irq(struct pcmcia_device *p_dev);
 160
 161 /* cistpl.c */
 162 extern struct bin_attribute pccard_cis_attr;
 163
 164 int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
 165                         u_int addr, u_int len, void *ptr);
 166 void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
 167                           u_int addr, u_int len, void *ptr);
 168 void release_cis_mem(struct pcmcia_socket *s);
 169 void destroy_cis_cache(struct pcmcia_socket *s);
 170 int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
 171                       cisdata_t code, void *parse);
 172 int pcmcia_replace_cis(struct pcmcia_socket *s,
 173                        const u8 *data, const size_t len);
 174 int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *count);
 175 int verify_cis_cache(struct pcmcia_socket *s);
 176
 177 int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
 178                       cisdata_t code, cisparse_t *parse, void *priv_data,
 179                       int (*loop_tuple) (tuple_t *tuple,
 180                                          cisparse_t *parse,
 181                                          void *priv_data));
 182
 183 int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function,
 184                         tuple_t *tuple);
 185
 186 int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function,
 187                         tuple_t *tuple);
 188
 189 int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple);
 190
 191
 192 #ifdef CONFIG_PCMCIA_IOCTL
 193 /* ds.c */
 194 extern struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev);
 195 extern void pcmcia_put_dev(struct pcmcia_device *p_dev);
 196
 197 struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s,
 198                                         unsigned int function);
 199
 200 /* pcmcia_ioctl.c */
 201 extern void __init pcmcia_setup_ioctl(void);
 202 extern void __exit pcmcia_cleanup_ioctl(void);
 203 extern void handle_event(struct pcmcia_socket *s, event_t event);
 204 extern int handle_request(struct pcmcia_socket *s, event_t event);
 205
 206 #else /* CONFIG_PCMCIA_IOCTL */
 207
 208 static inline void __init pcmcia_setup_ioctl(void) { return; }
 209 static inline void __exit pcmcia_cleanup_ioctl(void) { return; }
 210 static inline void handle_event(struct pcmcia_socket *s, event_t event)
 211 {
 212         return;
 213 }
 214 static inline int handle_request(struct pcmcia_socket *s, event_t event)
 215 {
 216         return 0;
 217 }
 218
 219 #endif /* CONFIG_PCMCIA_IOCTL */
 220
 221 #endif /* _LINUX_CS_INTERNAL_H */