drivers/pcmcia/cs_internal.h

   1 /*
   2  * cs_internal.h 1.57 2002/10/24 06:11:43
   3  *
   4  * The contents of this file are subject to the Mozilla Public License
   5  * Version 1.1 (the "License"); you may not use this file except in
   6  * compliance with the License. You may obtain a copy of the License
   7  * at http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS"
  10  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  11  * the License for the specific language governing rights and
  12  * limitations under the License.
  13  *
  14  * The initial developer of the original code is David A. Hinds
  15  * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  16  *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  17  */
  18
  19 #ifndef _LINUX_CS_INTERNAL_H
  20 #define _LINUX_CS_INTERNAL_H
  21
  22 #include <linux/config.h>
  23
  24 #define ERASEQ_MAGIC    0xFA67
  25 typedef struct eraseq_t {
  26     u_short             eraseq_magic;
  27     client_handle_t     handle;
  28     int                 count;
  29     eraseq_entry_t      *entry;
  30 } eraseq_t;
  31
  32 #define CLIENT_MAGIC    0x51E6
  33 typedef struct client_t {
  34     u_short             client_magic;
  35     struct pcmcia_socket *Socket;
  36     u_char              Function;
  37     dev_info_t          dev_info;
  38     u_int               Attributes;
  39     u_int               state;
  40     event_t             EventMask, PendingEvents;
  41     int (*event_handler)(event_t event, int priority,
  42                          event_callback_args_t *);
  43     event_callback_args_t event_callback_args;
  44     struct client_t     *next;
  45     u_int               mtd_count;
  46     wait_queue_head_t   mtd_req;
  47     erase_busy_t        erase_busy;
  48 } client_t;
  49
  50 /* Flags in client state */
  51 #define CLIENT_CONFIG_LOCKED    0x0001
  52 #define CLIENT_IRQ_REQ          0x0002
  53 #define CLIENT_IO_REQ           0x0004
  54 #define CLIENT_UNBOUND          0x0008
  55 #define CLIENT_STALE            0x0010
  56 #define CLIENT_WIN_REQ(i)       (0x20<<(i))
  57 #define CLIENT_CARDBUS          0x8000
  58
  59 #define REGION_MAGIC    0xE3C9
  60 typedef struct region_t {
  61     u_short             region_magic;
  62     u_short             state;
  63     dev_info_t          dev_info;
  64     client_handle_t     mtd;
  65     u_int               MediaID;
  66     region_info_t       info;
  67 } region_t;
  68
  69 #define REGION_STALE    0x01
  70
  71 /* Each card function gets one of these guys */
  72 typedef struct config_t {
  73     u_int               state;
  74     u_int               Attributes;
  75     u_int               Vcc, Vpp1, Vpp2;
  76     u_int               IntType;
  77     u_int               ConfigBase;
  78     u_char              Status, Pin, Copy, Option, ExtStatus;
  79     u_int               Present;
  80     u_int               CardValues;
  81     io_req_t            io;
  82     struct {
  83         u_int           Attributes;
  84     } irq;
  85 } config_t;
  86
  87 struct cis_cache_entry {
  88         struct list_head        node;
  89         unsigned int            addr;
  90         unsigned int            len;
  91         unsigned int            attr;
  92         unsigned char           cache[0];
  93 };
  94
  95 /* Flags in config state */
  96 #define CONFIG_LOCKED           0x01
  97 #define CONFIG_IRQ_REQ          0x02
  98 #define CONFIG_IO_REQ           0x04
  99
 100 /* Flags in socket state */
 101 #define SOCKET_PRESENT          0x0008
 102 #define SOCKET_INUSE            0x0010
 103 #define SOCKET_SUSPEND          0x0080
 104 #define SOCKET_WIN_REQ(i)       (0x0100<<(i))
 105 #define SOCKET_REGION_INFO      0x4000
 106 #define SOCKET_CARDBUS          0x8000
 107 #define SOCKET_CARDBUS_CONFIG   0x10000
 108
 109 static inline int cs_socket_get(struct pcmcia_socket *skt)
 110 {
 111         int ret;
 112
 113         WARN_ON(skt->state & SOCKET_INUSE);
 114
 115         ret = try_module_get(skt->owner);
 116         if (ret)
 117                 skt->state |= SOCKET_INUSE;
 118         return ret;
 119 }
 120
 121 static inline void cs_socket_put(struct pcmcia_socket *skt)
 122 {
 123         if (skt->state & SOCKET_INUSE) {
 124                 skt->state &= ~SOCKET_INUSE;
 125                 module_put(skt->owner);
 126         }
 127 }
 128
 129 #define CHECK_HANDLE(h) \
 130     (((h) == NULL) || ((h)->client_magic != CLIENT_MAGIC))
 131
 132 #define CHECK_SOCKET(s) \
 133     (((s) >= sockets) || (socket_table[s]->ops == NULL))
 134
 135 #define SOCKET(h) (h->Socket)
 136 #define CONFIG(h) (&SOCKET(h)->config[(h)->Function])
 137
 138 #define CHECK_REGION(r) \
 139     (((r) == NULL) || ((r)->region_magic != REGION_MAGIC))
 140
 141 #define CHECK_ERASEQ(q) \
 142     (((q) == NULL) || ((q)->eraseq_magic != ERASEQ_MAGIC))
 143
 144 #define EVENT(h, e, p) \
 145     ((h)->event_handler((e), (p), &(h)->event_callback_args))
 146
 147 /* In cardbus.c */
 148 int cb_alloc(struct pcmcia_socket *s);
 149 void cb_free(struct pcmcia_socket *s);
 150 int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, void *ptr);
 151
 152 /* In cistpl.c */
 153 int read_cis_mem(struct pcmcia_socket *s, int attr,
 154                  u_int addr, u_int len, void *ptr);
 155 void write_cis_mem(struct pcmcia_socket *s, int attr,
 156                    u_int addr, u_int len, void *ptr);
 157 void release_cis_mem(struct pcmcia_socket *s);
 158 void destroy_cis_cache(struct pcmcia_socket *s);
 159 int verify_cis_cache(struct pcmcia_socket *s);
 160 void preload_cis_cache(struct pcmcia_socket *s);
 161 int get_first_tuple(client_handle_t handle, tuple_t *tuple);
 162 int get_next_tuple(client_handle_t handle, tuple_t *tuple);
 163 int get_tuple_data(client_handle_t handle, tuple_t *tuple);
 164 int parse_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse);
 165 int validate_cis(client_handle_t handle, cisinfo_t *info);
 166 int replace_cis(client_handle_t handle, cisdump_t *cis);
 167 int read_tuple(client_handle_t handle, cisdata_t code, void *parse);
 168
 169 /* In bulkmem.c */
 170 int get_first_region(client_handle_t handle, region_info_t *rgn);
 171 int get_next_region(client_handle_t handle, region_info_t *rgn);
 172 int register_mtd(client_handle_t handle, mtd_reg_t *reg);
 173 int register_erase_queue(client_handle_t *handle, eraseq_hdr_t *header);
 174 int deregister_erase_queue(eraseq_handle_t eraseq);
 175 int check_erase_queue(eraseq_handle_t eraseq);
 176 int open_memory(client_handle_t *handle, open_mem_t *open);
 177 int close_memory(memory_handle_t handle);
 178 int read_memory(memory_handle_t handle, mem_op_t *req, caddr_t buf);
 179 int write_memory(memory_handle_t handle, mem_op_t *req, caddr_t buf);
 180 int copy_memory(memory_handle_t handle, copy_op_t *req);
 181
 182 /* In rsrc_mgr */
 183 void pcmcia_validate_mem(struct pcmcia_socket *s);
 184 struct resource *find_io_region(unsigned long base, int num, unsigned long align,
 185                    char *name, struct pcmcia_socket *s);
 186 int adjust_io_region(struct resource *res, unsigned long r_start,
 187                      unsigned long r_end, struct pcmcia_socket *s);
 188 struct resource *find_mem_region(u_long base, u_long num, u_long align,
 189                     int low, char *name, struct pcmcia_socket *s);
 190 int try_irq(u_int Attributes, int irq, int specific);
 191 void undo_irq(u_int Attributes, int irq);
 192 int adjust_resource_info(client_handle_t handle, adjust_t *adj);
 193 void release_resource_db(void);
 194
 195 /* In socket_sysfs.c */
 196 extern struct class_interface pccard_sysfs_interface;
 197
 198 /* In cs.c */
 199 extern struct rw_semaphore pcmcia_socket_list_rwsem;
 200 extern struct list_head pcmcia_socket_list;
 201
 202 #define cs_socket_name(skt)     ((skt)->dev.class_id)
 203
 204 #ifdef DEBUG
 205 extern int cs_debug_level(int);
 206
 207 #define cs_dbg(skt, lvl, fmt, arg...) do {              \
 208         if (cs_debug_level(lvl))                        \
 209                 printk(KERN_DEBUG "cs: %s: " fmt,       \
 210                        cs_socket_name(skt) , ## arg);   \
 211 } while (0)
 212
 213 #else
 214 #define cs_dbg(skt, lvl, fmt, arg...) do { } while (0)
 215 #endif
 216
 217 #define cs_err(skt, fmt, arg...) \
 218         printk(KERN_ERR "cs: %s: " fmt, (skt)->dev.class_id , ## arg)
 219
 220 #endif /* _LINUX_CS_INTERNAL_H */