FreeBSD/Linux Kernel Cross Reference
sys/pccard/slot.h

     /*
      *      Slot structures for PC-CARD interface.
      *      Each slot has a controller specific structure
      *      attached to it. A slot number allows
      *      mapping from the character device to the
      *      slot structure. This is separate to the
      *      controller slot number to allow multiple controllers
      *      to be accessed.
      *-------------------------------------------------------------------------
     *
     * Copyright (c) 1995 Andrew McRae.  All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     *      Controller data - Specific to each slot controller.
     */
    struct slot;
    struct slot_ctrl {
            int     (*mapmem) __P((struct slot *, int));
                                    /* Map memory */
            int     (*mapio) __P((struct slot *, int));
                                    /* Map io */
            void    (*reset) __P((void *));
                                    /* init */
            void    (*disable) __P((struct slot *));
                                    /* Disable slot */
            int     (*power) __P((struct slot *));
                                    /* Set power values */
            int     (*ioctl) __P((struct slot *, int, caddr_t));
                                    /* ioctl to lower level */
            void    (*mapirq) __P((struct slot *, int));
                                    /* Map interrupt number */
            void    (*resume) __P((struct slot *));
                                    /* suspend/resume support */
            int     extra;          /* Controller specific size */
            int     maxmem;         /* Number of allowed memory windows */
            int     maxio;          /* Number of allowed I/O windows */
            int     irqs;           /* IRQ's that are allowed */
            u_int   *imask;         /* IRQ mask for the PCIC controller */
            char    *name;          /* controller name */
    
            /*
             *      The rest is maintained by the mainline PC-CARD code.
             */
            struct slot_ctrl *next; /* Allows linked list of controllers */
            int     slots;          /* Slots available */
    };
    
    /*
     *      Driver structure - each driver registers itself
     *      with the mainline PC-CARD code. These drivers are
     *      then available for linking to the devices.
     */
    struct pccard_devinfo;
    
    struct pccard_device {
            char    *name;                                  /* Driver name */
            int (*enable)(struct pccard_devinfo *);         /* init/enable driver */
            void (*disable)(struct pccard_devinfo *);       /* disable driver */
            int (*handler)(struct pccard_devinfo *);        /* interrupt handler */
            int     attr;                                   /* driver attributes */
            unsigned int *imask;                            /* Interrupt mask ptr */
    
            struct pccard_device *next;
    };
    
    int pccard_module_handler __P((module_t mod, int what, void *arg));
    
    #define PCCARD_MODULE(name, enable, disable, handler, attr, imask)      \
    static struct pccard_device name ## _info = {                           \
            #name,                                                          \
            enable,                                                         \
            disable,                                                        \
            handler,                                                        \
            attr,                                                           \
            &imask                                                          \
    };                                                                      \
   static moduledata_t name ## _mod = {                                    \
           "pccard_" #name,                                                \
           pccard_module_handler,                                          \
           &name ## _info                                                  \
   };                                                                      \
   DECLARE_MODULE(name, name ## _mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
   
   /*
    *      Device structure for cards. Each card may have one
    *      or more pccard drivers attached to it; each driver is assumed
    *      to require at most one interrupt handler, one I/O block
    *      and one memory block. This structure is used to link the different
    *      devices together.
    */
   struct pccard_devinfo {
           struct pccard_device *drv;
           struct isa_device isahd;        /* Device details */
   #if 0
           void *arg;                      /* Device argument */
   #endif
           int running;                    /* Current state of driver */
           u_char  misc[128];              /* For any random info */
           struct slot *slt;               /* Back pointer to slot */
   
           struct pccard_devinfo *next;    /* List of drivers */
   };
   
   /*
    *      Per-slot structure.
    */
   struct slot {
           int slotnum;                    /* Slot number */
           int flags;                      /* Slot flags (see below) */
           int rwmem;                      /* Read/write flags */
           int irq;                        /* IRQ allocated (0 = none) */
           int irqref;                     /* Reference count of driver IRQs */
           struct pccard_devinfo *devices; /* List of drivers attached */
           /*
            *      flags.
            */
           unsigned int    insert_seq;     /* Firing up under the card */
           struct callout_handle insert_ch;/* Insert event timeout handle */
           struct callout_handle poff_ch;  /* Power Off timeout handle */
   
           enum cardstate  state, laststate; /* Current/last card states */
           struct selinfo  selp;           /* Info for select */
           struct mem_desc mem[NUM_MEM_WINDOWS];   /* Memory windows */
           struct io_desc  io[NUM_IO_WINDOWS];     /* I/O windows */
           struct power    pwr;            /* Power values */
           struct slot_ctrl *ctrl;         /* Per-controller data */
           void            *cdata;         /* Controller specific data */
           int             pwr_off_pending;/* Power status of slot */
   #ifdef DEVFS
           void            *devfs_token;
   #endif /* DEVFS*/
   
           struct slot *next;              /* Master list */
   };
   
   enum card_event { card_removed, card_inserted };
   
   struct slot     *pccard_alloc_slot(struct slot_ctrl *);
   void             pccard_event(struct slot *, enum card_event);
   void             pccard_remove_controller(struct slot_ctrl *);

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