The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*
    2  *      Include file for PCMCIA user process interface
    3  *
    4  *-------------------------------------------------------------------------
    5  *
    6  * Copyright (c) 1995 Andrew McRae.  All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. The name of the author may not be used to endorse or promote products
   17  *    derived from this software without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 
   31 /* $FreeBSD: releng/5.2/sys/pccard/cardinfo.h 113946 2003-04-23 23:39:21Z imp $ */
   32 
   33 #ifndef _PCCARD_CARDINFO_H_
   34 #define _PCCARD_CARDINFO_H_
   35 
   36 #ifndef _KERNEL
   37 #include <sys/types.h>
   38 #endif
   39 #include <sys/ioccom.h>
   40 
   41 #define PIOCGSTATE      _IOR('P', 1, struct slotstate)  /* Get slot state */
   42 #define PIOCGMEM        _IOWR('P', 2, struct mem_desc)  /* Get memory map */
   43 #define PIOCSMEM        _IOW('P', 3, struct mem_desc)   /* Set memory map */
   44 #define PIOCGIO         _IOWR('P', 4, struct io_desc)   /* Get I/O map */
   45 #define PIOCSIO         _IOW('P', 5, struct io_desc)    /* Set I/O map */
   46 #define PIOCSDRV        _IOWR('P', 6, struct dev_desc)  /* Set driver */
   47 #define PIOCRWFLAG      _IOW('P', 7, int)       /* Set flags for drv use */
   48 #define PIOCRWMEM       _IOWR('P', 8, unsigned long) /* Set mem for drv use */
   49 #define PIOCSPOW        _IOW('P', 9, struct power) /* Set power structure */
   50 #define PIOCSVIR        _IOW('P', 10, int)      /* Virtual insert/remove */
   51 #define PIOCSBEEP       _IOW('P', 11, int)              /* Select Beep */
   52 #define PIOCSRESOURCE   _IOWR('P', 12, struct pccard_resource)  /* get resource info */
   53 /*
   54  *      Debug codes.
   55  */
   56 #define PIOCGREG        _IOWR('P',100, struct pcic_reg) /* get reg */
   57 #define PIOCSREG        _IOW('P', 101, struct pcic_reg) /* Set reg */
   58 
   59 /*
   60  *      Slot states for PIOCGSTATE
   61  *
   62  *      Here's a state diagram of all the possible states:
   63  *
   64  *                             power x 1
   65  *                       -------------------
   66  *                      /                   \
   67  *                     /                     v
   68  *    resume    +----------+   power x 0   +----------+
   69  *      ------->| inactive |<--------------| filled   |
   70  *     /        +----------+               +----------+
   71  *    /           /     \                   ^   |
   72  *  nil <---------       \        insert or |   | suspend or
   73  *        suspend         \       power x 1 |   | eject
   74  *                         \                |   v
   75  *                          \            +----------+
   76  *                           ----------->|  empty   |
   77  *                             eject     +----------+
   78  *
   79  *      Note, the above diagram is for the state.  On suspend, the laststate
   80  * gets set to suspend to tell pccardd what happened.  Also the nil state
   81  * means that when the no state change has happened.  Note: if you eject
   82  * while suspended in the inactive state, you will return to the
   83  * empty state if you do not insert a new card and to the inactive state
   84  * if you do insert a new card.
   85  *
   86  * Some might argue that inactive should be sticky forever and
   87  * eject/insert shouldn't take it out of that state.  They might be
   88  * right.  On the other hand, some would argue that eject resets all
   89  * state.  They might be right.  They both can't be right.  The above
   90  * represents a reasonable compromise between the two.
   91  *
   92  * Some bridges allow one to query to see if the card was changed while
   93  * we were suspended.  Others do not.  We make no use of this functionality
   94  * at this time.
   95  */
   96 enum cardstate { noslot, empty, suspend, filled, inactive };
   97 
   98 /*
   99  *      Descriptor structure for memory map.
  100  */
  101 struct mem_desc {
  102         int     window;         /* Memory map window number (0-4) */
  103         int     flags;          /* Flags - see below */
  104         caddr_t start;          /* System memory start */
  105         int     size;           /* Size of memory area */
  106         unsigned long card;     /* Card memory address */
  107 };
  108 
  109 #define MDF_16BITS      0x01    /* Memory is 16 bits wide */
  110 #define MDF_ZEROWS      0x02    /* Set no wait states for memory */
  111 #define MDF_WS0         0x04    /* Wait state flags */
  112 #define MDF_WS1         0x08
  113 #define MDF_ATTR        0x10    /* Memory is attribute memory */
  114 #define MDF_WP          0x20    /* Write protect memory */
  115 #define MDF_ACTIVE      0x40    /* Context active (read-only) */
  116 
  117 /*
  118  *      Descriptor structure for I/O map
  119  */
  120 struct io_desc {
  121         int     window;         /* I/O map number (0-1) */
  122         int     flags;          /* Flags - see below */
  123         int     start;          /* I/O port start */
  124         int     size;           /* Number of port addresses */
  125 };
  126 
  127 #define IODF_WS         0x01    /* Set wait states for 16 bit I/O access */
  128 #define IODF_16BIT      0x02    /* I/O access are 16 bit */
  129 #define IODF_CS16       0x04    /* Allow card selection of 16 bit access */
  130 #define IODF_ZEROWS     0x08    /* No wait states for 8 bit I/O */
  131 #define IODF_ACTIVE     0x10    /* Context active (read-only) */
  132 
  133 /*
  134  *      Device descriptor for allocation of driver.
  135  */
  136 #define DEV_MISC_LEN    36
  137 #define DEV_MAX_CIS_LEN 40
  138 struct dev_desc {
  139         char            name[16];       /* Driver name */
  140         int             unit;           /* Driver unit number */
  141         unsigned long   mem;            /* Memory address of driver */
  142         int             memsize;        /* Memory size (if used) */
  143         int             iobase;         /* base of I/O ports */
  144         int             iosize;         /* Length of I/O ports */
  145         int             irqmask;        /* Interrupt number(s) to allocate */
  146         int             flags;          /* Device flags */
  147         uint8_t         misc[DEV_MISC_LEN]; /* For any random info */
  148         uint8_t         manufstr[DEV_MAX_CIS_LEN];
  149         uint8_t         versstr[DEV_MAX_CIS_LEN];
  150         uint8_t         cis3str[DEV_MAX_CIS_LEN];
  151         uint8_t         cis4str[DEV_MAX_CIS_LEN];
  152         uint32_t        manufacturer;   /* Manufacturer ID */
  153         uint32_t        product;        /* Product ID */
  154         uint32_t        prodext;        /* Product ID (extended) */
  155 };
  156 #if __FreeBSD_version < 5000000         /* 4.x compatibility only. */
  157 #define PIOCSDRVOLD     _IOWR('P', 6, struct dev_desc_old) /* Set driver */
  158 struct dev_desc_old {
  159         char            name[16];       /* Driver name */
  160         int             unit;           /* Driver unit number */
  161         unsigned long   mem;            /* Memory address of driver */
  162         int             memsize;        /* Memory size (if used) */
  163         int             iobase;         /* base of I/O ports */
  164         int             iosize;         /* Length of I/O ports */
  165         int             irqmask;        /* Interrupt number(s) to allocate */
  166         int             flags;          /* Device flags */
  167         uint8_t         misc[DEV_MISC_LEN]; /* For any random info */
  168         uint8_t         manufstr[DEV_MAX_CIS_LEN];
  169         uint8_t         versstr[DEV_MAX_CIS_LEN];
  170         uint32_t        manufacturer;   /* Manufacturer ID */
  171         uint32_t        product;        /* Product ID */
  172         uint32_t        prodext;        /* Product ID (extended) */
  173 };
  174 #endif
  175 #define DEV_DESC_HAS_SIZE 1
  176 
  177 struct pcic_reg {
  178         unsigned char reg;
  179         unsigned char value;
  180 };
  181 
  182 /*
  183  *      Slot information. Used to read current status of slot.
  184  */
  185 struct slotstate {
  186         enum cardstate  state;          /* Current state of slot */
  187         enum cardstate  laststate;      /* Previous state of slot */
  188         int             maxmem;         /* Max allowed memory windows */
  189         int             maxio;          /* Max allowed I/O windows */
  190         int             irqs;           /* Bitmap of IRQs allowed */
  191         int             flags;          /* Capability flags */
  192 };
  193 
  194 /*
  195  *      The power values are in volts * 10, e.g. 5V is 50, 3.3V is 33.
  196  */
  197 struct power {
  198         int             vcc;
  199         int             vpp;
  200 };
  201 
  202 /*
  203  *      The PC-Card resource IOC_GET_RESOURCE_RANGE
  204  */
  205 struct pccard_resource {
  206         int             type;
  207         u_long          size;
  208         u_long          min;
  209         u_long          max;
  210         u_long          resource_addr;
  211 };
  212 
  213 
  214 /*
  215  *      Other system limits
  216  */
  217 #define MAXSLOT 16
  218 #define NUM_MEM_WINDOWS 10
  219 #define NUM_IO_WINDOWS  6
  220 #define CARD_DEVICE     "/dev/card%d"           /* String for snprintf */
  221 #define PCCARD_MEMSIZE  (4*1024)
  222 
  223 #endif /* !_PCCARD_CARDINFO_H_ */

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