include/pcmcia/ss.h

   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 */
  53 typedef 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
  60 extern 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
  87 typedef 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
  94 typedef 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
 103 typedef 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  */
 118 struct pcmcia_socket;
 119 struct pccard_resource_ops;
 120 struct config_t;
 121 struct pcmcia_callback;
 122 struct user_info_t;
 123
 124 struct 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
 133 struct 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  */
 244 extern struct pccard_resource_ops pccard_static_ops;
 245 #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
 246 extern struct pccard_resource_ops pccard_iodyn_ops;
 247 extern 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 */
 258 extern void pcmcia_parse_events(struct pcmcia_socket *socket,
 259                                 unsigned int events);
 260
 261 /* to register and unregister a socket */
 262 extern int pcmcia_register_socket(struct pcmcia_socket *socket);
 263 extern void pcmcia_unregister_socket(struct pcmcia_socket *socket);
 264
 265
 266 #endif /* _LINUX_SS_H */