linux/include/pcmcia/ss.h
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   1/*
   2 * ss.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_SS_H
  16#define _LINUX_SS_H
  17
  18#include <linux/device.h>
  19#include <linux/sched.h>        /* task_struct, completion */
  20#include <linux/mutex.h>
  21
  22#ifdef CONFIG_CARDBUS
  23#include <linux/pci.h>
  24#endif
  25
  26/* Definitions for card status flags for GetStatus */
  27#define SS_WRPROT       0x0001
  28#define SS_CARDLOCK     0x0002
  29#define SS_EJECTION     0x0004
  30#define SS_INSERTION    0x0008
  31#define SS_BATDEAD      0x0010
  32#define SS_BATWARN      0x0020
  33#define SS_READY        0x0040
  34#define SS_DETECT       0x0080
  35#define SS_POWERON      0x0100
  36#define SS_GPI          0x0200
  37#define SS_STSCHG       0x0400
  38#define SS_CARDBUS      0x0800
  39#define SS_3VCARD       0x1000
  40#define SS_XVCARD       0x2000
  41#define SS_PENDING      0x4000
  42#define SS_ZVCARD       0x8000
  43
  44/* InquireSocket capabilities */
  45#define SS_CAP_PAGE_REGS        0x0001
  46#define SS_CAP_VIRTUAL_BUS      0x0002
  47#define SS_CAP_MEM_ALIGN        0x0004
  48#define SS_CAP_STATIC_MAP       0x0008
  49#define SS_CAP_PCCARD           0x4000
  50#define SS_CAP_CARDBUS          0x8000
  51
  52/* for GetSocket, SetSocket */
  53typedef struct socket_state_t {
  54        u_int   flags;
  55        u_int   csc_mask;
  56        u_char  Vcc, Vpp;
  57        u_char  io_irq;
  58} socket_state_t;
  59
  60extern socket_state_t dead_socket;
  61
  62/* Socket configuration flags */
  63#define SS_PWR_AUTO     0x0010
  64#define SS_IOCARD       0x0020
  65#define SS_RESET        0x0040
  66#define SS_DMA_MODE     0x0080
  67#define SS_SPKR_ENA     0x0100
  68#define SS_OUTPUT_ENA   0x0200
  69
  70/* Flags for I/O port and memory windows */
  71#define MAP_ACTIVE      0x01
  72#define MAP_16BIT       0x02
  73#define MAP_AUTOSZ      0x04
  74#define MAP_0WS         0x08
  75#define MAP_WRPROT      0x10
  76#define MAP_ATTRIB      0x20
  77#define MAP_USE_WAIT    0x40
  78#define MAP_PREFETCH    0x80
  79
  80/* Use this just for bridge windows */
  81#define MAP_IOSPACE     0x20
  82
  83/* power hook operations */
  84#define HOOK_POWER_PRE  0x01
  85#define HOOK_POWER_POST 0x02
  86
  87typedef struct pccard_io_map {
  88        u_char  map;
  89        u_char  flags;
  90        u_short speed;
  91        phys_addr_t start, stop;
  92} pccard_io_map;
  93
  94typedef struct pccard_mem_map {
  95        u_char          map;
  96        u_char          flags;
  97        u_short         speed;
  98        phys_addr_t     static_start;
  99        u_int           card_start;
 100        struct resource *res;
 101} pccard_mem_map;
 102
 103typedef struct io_window_t {
 104        u_int                   InUse, Config;
 105        struct resource         *res;
 106} io_window_t;
 107
 108/* Maximum number of IO windows per socket */
 109#define MAX_IO_WIN 2
 110
 111/* Maximum number of memory windows per socket */
 112#define MAX_WIN 4
 113
 114
 115/*
 116 * Socket operations.
 117 */
 118struct pcmcia_socket;
 119struct pccard_resource_ops;
 120struct config_t;
 121struct pcmcia_callback;
 122struct user_info_t;
 123
 124struct pccard_operations {
 125        int (*init)(struct pcmcia_socket *s);
 126        int (*suspend)(struct pcmcia_socket *s);
 127        int (*get_status)(struct pcmcia_socket *s, u_int *value);
 128        int (*set_socket)(struct pcmcia_socket *s, socket_state_t *state);
 129        int (*set_io_map)(struct pcmcia_socket *s, struct pccard_io_map *io);
 130        int (*set_mem_map)(struct pcmcia_socket *s, struct pccard_mem_map *mem);
 131};
 132
 133struct pcmcia_socket {
 134        struct module                   *owner;
 135        socket_state_t                  socket;
 136        u_int                           state;
 137        u_int                           suspended_state;        /* state before suspend */
 138        u_short                         functions;
 139        u_short                         lock_count;
 140        pccard_mem_map                  cis_mem;
 141        void __iomem                    *cis_virt;
 142        io_window_t                     io[MAX_IO_WIN];
 143        pccard_mem_map                  win[MAX_WIN];
 144        struct list_head                cis_cache;
 145        size_t                          fake_cis_len;
 146        u8                              *fake_cis;
 147
 148        struct list_head                socket_list;
 149        struct completion               socket_released;
 150
 151        /* deprecated */
 152        unsigned int                    sock;           /* socket number */
 153
 154
 155        /* socket capabilities */
 156        u_int                           features;
 157        u_int                           irq_mask;
 158        u_int                           map_size;
 159        u_int                           io_offset;
 160        u_int                           pci_irq;
 161        struct pci_dev                  *cb_dev;
 162
 163        /* socket setup is done so resources should be able to be allocated.
 164         * Only if set to 1, calls to find_{io,mem}_region are handled, and
 165         * insertio events are actually managed by the PCMCIA layer.*/
 166        u8                              resource_setup_done;
 167
 168        /* socket operations */
 169        struct pccard_operations        *ops;
 170        struct pccard_resource_ops      *resource_ops;
 171        void                            *resource_data;
 172
 173        /* Zoom video behaviour is so chip specific its not worth adding
 174           this to _ops */
 175        void                            (*zoom_video)(struct pcmcia_socket *,
 176                                                      int);
 177
 178        /* so is power hook */
 179        int (*power_hook)(struct pcmcia_socket *sock, int operation);
 180
 181        /* allows tuning the CB bridge before loading driver for the CB card */
 182#ifdef CONFIG_CARDBUS
 183        void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus);
 184#endif
 185
 186        /* state thread */
 187        struct task_struct              *thread;
 188        struct completion               thread_done;
 189        unsigned int                    thread_events;
 190        unsigned int                    sysfs_events;
 191
 192        /* For the non-trivial interaction between these locks,
 193         * see Documentation/pcmcia/locking.txt */
 194        struct mutex                    skt_mutex;
 195        struct mutex                    ops_mutex;
 196
 197        /* protects thread_events and sysfs_events */
 198        spinlock_t                      thread_lock;
 199
 200        /* pcmcia (16-bit) */
 201        struct pcmcia_callback          *callback;
 202
 203#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
 204        /* The following elements refer to 16-bit PCMCIA devices inserted
 205         * into the socket */
 206        struct list_head                devices_list;
 207
 208        /* the number of devices, used only internally and subject to
 209         * incorrectness and change */
 210        u8                              device_count;
 211
 212        /* does the PCMCIA card consist of two pseudo devices? */
 213        u8                              pcmcia_pfc;
 214
 215        /* non-zero if PCMCIA card is present */
 216        atomic_t                        present;
 217
 218        /* IRQ to be used by PCMCIA devices. May not be IRQ 0. */
 219        unsigned int                    pcmcia_irq;
 220
 221#endif /* CONFIG_PCMCIA */
 222
 223        /* socket device */
 224        struct device                   dev;
 225        /* data internal to the socket driver */
 226        void                            *driver_data;
 227        /* status of the card during resume from a system sleep state */
 228        int                             resume_status;
 229};
 230
 231
 232/* socket drivers must define the resource operations type they use. There
 233 * are three options:
 234 * - pccard_static_ops          iomem and ioport areas are assigned statically
 235 * - pccard_iodyn_ops           iomem areas is assigned statically, ioport
 236 *                              areas dynamically
 237 *                              If this option is selected, use
 238 *                              "select PCCARD_IODYN" in Kconfig.
 239 * - pccard_nonstatic_ops       iomem and ioport areas are assigned dynamically.
 240 *                              If this option is selected, use
 241 *                              "select PCCARD_NONSTATIC" in Kconfig.
 242 *
 243 */
 244extern struct pccard_resource_ops pccard_static_ops;
 245#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
 246extern struct pccard_resource_ops pccard_iodyn_ops;
 247extern struct pccard_resource_ops pccard_nonstatic_ops;
 248#else
 249/* If PCMCIA is not used, but only CARDBUS, these functions are not used
 250 * at all. Therefore, do not use the large (240K!) rsrc_nonstatic module
 251 */
 252#define pccard_iodyn_ops pccard_static_ops
 253#define pccard_nonstatic_ops pccard_static_ops
 254#endif
 255
 256
 257/* socket drivers use this callback in their IRQ handler */
 258extern void pcmcia_parse_events(struct pcmcia_socket *socket,
 259                                unsigned int events);
 260
 261/* to register and unregister a socket */
 262extern int pcmcia_register_socket(struct pcmcia_socket *socket);
 263extern void pcmcia_unregister_socket(struct pcmcia_socket *socket);
 264
 265
 266#endif /* _LINUX_SS_H */
 267
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