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/config.h>
  19 #include <linux/device.h>
  20 #include <linux/sched.h>        /* task_struct, completion */
  21
  22 #include <pcmcia/cs_types.h>
  23 #include <pcmcia/cs.h>
  24 #include <pcmcia/bulkmem.h>
  25 #ifdef CONFIG_CARDBUS
  26 #include <linux/pci.h>
  27 #endif
  28
  29 /* Definitions for card status flags for GetStatus */
  30 #define SS_WRPROT       0x0001
  31 #define SS_CARDLOCK     0x0002
  32 #define SS_EJECTION     0x0004
  33 #define SS_INSERTION    0x0008
  34 #define SS_BATDEAD      0x0010
  35 #define SS_BATWARN      0x0020
  36 #define SS_READY        0x0040
  37 #define SS_DETECT       0x0080
  38 #define SS_POWERON      0x0100
  39 #define SS_GPI          0x0200
  40 #define SS_STSCHG       0x0400
  41 #define SS_CARDBUS      0x0800
  42 #define SS_3VCARD       0x1000
  43 #define SS_XVCARD       0x2000
  44 #define SS_PENDING      0x4000
  45 #define SS_ZVCARD       0x8000
  46
  47 /* InquireSocket capabilities */
  48 #define SS_CAP_PAGE_REGS        0x0001
  49 #define SS_CAP_VIRTUAL_BUS      0x0002
  50 #define SS_CAP_MEM_ALIGN        0x0004
  51 #define SS_CAP_STATIC_MAP       0x0008
  52 #define SS_CAP_PCCARD           0x4000
  53 #define SS_CAP_CARDBUS          0x8000
  54
  55 /* for GetSocket, SetSocket */
  56 typedef struct socket_state_t {
  57     u_int       flags;
  58     u_int       csc_mask;
  59     u_char      Vcc, Vpp;
  60     u_char      io_irq;
  61 } socket_state_t;
  62
  63 extern socket_state_t dead_socket;
  64
  65 /* Socket configuration flags */
  66 #define SS_PWR_AUTO     0x0010
  67 #define SS_IOCARD       0x0020
  68 #define SS_RESET        0x0040
  69 #define SS_DMA_MODE     0x0080
  70 #define SS_SPKR_ENA     0x0100
  71 #define SS_OUTPUT_ENA   0x0200
  72
  73 /* Flags for I/O port and memory windows */
  74 #define MAP_ACTIVE      0x01
  75 #define MAP_16BIT       0x02
  76 #define MAP_AUTOSZ      0x04
  77 #define MAP_0WS         0x08
  78 #define MAP_WRPROT      0x10
  79 #define MAP_ATTRIB      0x20
  80 #define MAP_USE_WAIT    0x40
  81 #define MAP_PREFETCH    0x80
  82
  83 /* Use this just for bridge windows */
  84 #define MAP_IOSPACE     0x20
  85
  86 /* power hook operations */
  87 #define HOOK_POWER_PRE  0x01
  88 #define HOOK_POWER_POST 0x02
  89
  90
  91 typedef struct pccard_io_map {
  92     u_char      map;
  93     u_char      flags;
  94     u_short     speed;
  95     kio_addr_t  start, stop;
  96 } pccard_io_map;
  97
  98 typedef struct pccard_mem_map {
  99     u_char      map;
 100     u_char      flags;
 101     u_short     speed;
 102     u_long      static_start;
 103     u_int       card_start;
 104     struct resource *res;
 105 } pccard_mem_map;
 106
 107 typedef struct cb_bridge_map {
 108     u_char      map;
 109     u_char      flags;
 110     u_int       start, stop;
 111 } cb_bridge_map;
 112
 113 /*
 114  * Socket operations.
 115  */
 116 struct pcmcia_socket;
 117
 118 struct pccard_operations {
 119         int (*init)(struct pcmcia_socket *sock);
 120         int (*suspend)(struct pcmcia_socket *sock);
 121         int (*register_callback)(struct pcmcia_socket *sock, void (*handler)(void *, unsigned int), void * info);
 122         int (*get_status)(struct pcmcia_socket *sock, u_int *value);
 123         int (*get_socket)(struct pcmcia_socket *sock, socket_state_t *state);
 124         int (*set_socket)(struct pcmcia_socket *sock, socket_state_t *state);
 125         int (*set_io_map)(struct pcmcia_socket *sock, struct pccard_io_map *io);
 126         int (*set_mem_map)(struct pcmcia_socket *sock, struct pccard_mem_map *mem);
 127 };
 128
 129 struct pccard_resource_ops {
 130         void    (*validate_mem)         (struct pcmcia_socket *s);
 131         int     (*adjust_io_region)     (struct resource *res,
 132                                          unsigned long r_start,
 133                                          unsigned long r_end,
 134                                          struct pcmcia_socket *s);
 135         struct resource* (*find_io)     (unsigned long base, int num,
 136                                          unsigned long align,
 137                                          struct pcmcia_socket *s);
 138         struct resource* (*find_mem)    (unsigned long base, unsigned long num,
 139                                          unsigned long align, int low,
 140                                          struct pcmcia_socket *s);
 141         int     (*adjust_resource)      (struct pcmcia_socket *s,
 142                                          adjust_t *adj);
 143         int     (*init)                 (struct pcmcia_socket *s);
 144         void    (*exit)                 (struct pcmcia_socket *s);
 145 };
 146 /* SS_CAP_STATIC_MAP */
 147 extern struct pccard_resource_ops pccard_static_ops;
 148 /* !SS_CAP_STATIC_MAP */
 149 extern struct pccard_resource_ops pccard_nonstatic_ops;
 150
 151 /*
 152  *  Calls to set up low-level "Socket Services" drivers
 153  */
 154 struct pcmcia_socket;
 155
 156 typedef struct io_window_t {
 157         u_int                   Attributes;
 158         kio_addr_t              BasePort, NumPorts;
 159         kio_addr_t              InUse, Config;
 160         struct resource         *res;
 161 } io_window_t;
 162
 163 #define WINDOW_MAGIC    0xB35C
 164 typedef struct window_t {
 165         u_short                 magic;
 166         u_short                 index;
 167         client_handle_t         handle;
 168         struct pcmcia_socket    *sock;
 169         pccard_mem_map          ctl;
 170 } window_t;
 171
 172 /* Maximum number of IO windows per socket */
 173 #define MAX_IO_WIN 2
 174
 175 /* Maximum number of memory windows per socket */
 176 #define MAX_WIN 4
 177
 178 struct config_t;
 179 struct pcmcia_callback;
 180 struct user_info_t;
 181
 182 struct pcmcia_socket {
 183         struct module                   *owner;
 184         spinlock_t                      lock;
 185         socket_state_t                  socket;
 186         u_int                           state;
 187         u_short                         functions;
 188         u_short                         lock_count;
 189         pccard_mem_map                  cis_mem;
 190         void __iomem                    *cis_virt;
 191         struct config_t                 *config;
 192         struct {
 193                 u_int                   AssignedIRQ;
 194                 u_int                   Config;
 195         } irq;
 196         io_window_t                     io[MAX_IO_WIN];
 197         window_t                        win[MAX_WIN];
 198         struct list_head                cis_cache;
 199         u_int                           fake_cis_len;
 200         char                            *fake_cis;
 201
 202         struct list_head                socket_list;
 203         struct completion               socket_released;
 204
 205         /* deprecated */
 206         unsigned int                    sock;           /* socket number */
 207
 208
 209         /* socket capabilities */
 210         u_int                           features;
 211         u_int                           irq_mask;
 212         u_int                           map_size;
 213         kio_addr_t                      io_offset;
 214         u_char                          pci_irq;
 215         struct pci_dev *                cb_dev;
 216
 217
 218         /* socket setup is done so resources should be able to be allocated. Only
 219          * if set to 1, calls to find_{io,mem}_region are handled, and insertion
 220          * events are actually managed by the PCMCIA layer.*/
 221         u8                              resource_setup_done:1;
 222
 223         /* is set to one if resource setup is done using adjust_resource_info() */
 224         u8                              resource_setup_old:1;
 225         u8                              resource_setup_new:1;
 226
 227         u8                              reserved:5;
 228
 229         /* socket operations */
 230         struct pccard_operations *      ops;
 231         struct pccard_resource_ops *    resource_ops;
 232         void *                          resource_data;
 233
 234         /* Zoom video behaviour is so chip specific its not worth adding
 235            this to _ops */
 236         void                            (*zoom_video)(struct pcmcia_socket *, int);
 237
 238         /* so is power hook */
 239         int (*power_hook)(struct pcmcia_socket *sock, int operation);
 240 #ifdef CONFIG_CARDBUS
 241         /* allows tuning the CB bridge before loading driver for the CB card */
 242         void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus);
 243 #endif
 244
 245         /* state thread */
 246         struct semaphore                skt_sem;        /* protects socket h/w state */
 247
 248         struct task_struct              *thread;
 249         struct completion               thread_done;
 250         wait_queue_head_t               thread_wait;
 251         spinlock_t                      thread_lock;    /* protects thread_events */
 252         unsigned int                    thread_events;
 253
 254         /* pcmcia (16-bit) */
 255         struct pcmcia_callback          *callback;
 256
 257 #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
 258         struct list_head                devices_list;   /*  PCMCIA devices */
 259         u8                              device_count;   /* the number of devices, used
 260                                                          * only internally and subject
 261                                                          * to incorrectness and change */
 262
 263         struct {
 264                 u8                      present:1,      /* PCMCIA card is present in socket */
 265                                         busy:1,         /* "master" ioctl is used */
 266                                         dead:1,         /* pcmcia module is being unloaded */
 267                                         device_add_pending:1, /* a pseudo-multifunction-device
 268                                                                * add event is pending */
 269                                         reserved:4;
 270         }                               pcmcia_state;
 271
 272         struct work_struct              device_add;     /* for adding further pseudo-multifunction
 273                                                          * devices */
 274
 275 #ifdef CONFIG_PCMCIA_IOCTL
 276         struct user_info_t              *user;
 277         wait_queue_head_t               queue;
 278 #endif
 279 #endif
 280
 281         /* cardbus (32-bit) */
 282 #ifdef CONFIG_CARDBUS
 283         struct resource *               cb_cis_res;
 284         void __iomem                    *cb_cis_virt;
 285 #endif
 286
 287         /* socket device */
 288         struct class_device             dev;
 289         void                            *driver_data;   /* data internal to the socket driver */
 290
 291 };
 292
 293 struct pcmcia_socket * pcmcia_get_socket_by_nr(unsigned int nr);
 294
 295
 296
 297 extern void pcmcia_parse_events(struct pcmcia_socket *socket, unsigned int events);
 298 extern int pcmcia_register_socket(struct pcmcia_socket *socket);
 299 extern void pcmcia_unregister_socket(struct pcmcia_socket *socket);
 300
 301 extern struct class pcmcia_socket_class;
 302
 303 /* socket drivers are expected to use these callbacks in their .drv struct */
 304 extern int pcmcia_socket_dev_suspend(struct device *dev, pm_message_t state);
 305 extern int pcmcia_socket_dev_resume(struct device *dev);
 306
 307 #endif /* _LINUX_SS_H */