usr/src/uts/common/sys/sunldi.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #ifndef _SYS_SUNLDI_H
  27 #define _SYS_SUNLDI_H
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"
  30
  31 #include <sys/modctl.h>
  32 #include <sys/stream.h>
  33 #include <sys/open.h>
  34
  35 /*
  36  * DDI interfaces for Layered driver support.
  37  */
  38
  39 #ifdef  __cplusplus
  40 extern "C" {
  41 #endif
  42
  43 #ifdef  _KERNEL
  44
  45
  46 /*
  47  * Opaque layered driver data structures.
  48  *
  49  * The contents of these data structures are private to this
  50  * implementation of Solaris and are subject to change at any
  51  * time without notice.
  52  *
  53  * Applications and drivers accessing the contents of these structures
  54  * directly will fail to run on future releases.
  55  */
  56 typedef struct __ldi_ident              *ldi_ident_t;
  57
  58 typedef struct __ldi_handle             *ldi_handle_t;
  59
  60 typedef struct __ldi_callback_id        *ldi_callback_id_t;
  61
  62 typedef struct __ldi_ev_cookie          *ldi_ev_cookie_t;
  63
  64 /*
  65  * LDI event interface related
  66  */
  67 #define LDI_EV_SUCCESS  0
  68 #define LDI_EV_FAILURE  (-1)
  69 #define LDI_EV_NONE     (-2)    /* no matching callbacks registered */
  70 #define LDI_EV_OFFLINE  "LDI:EVENT:OFFLINE"
  71 #define LDI_EV_DEGRADE  "LDI:EVENT:DEGRADE"
  72
  73 #define LDI_EV_CB_VERS_1        1
  74 #define LDI_EV_CB_VERS          LDI_EV_CB_VERS_1
  75
  76 typedef struct ldi_ev_callback {
  77         uint_t cb_vers;
  78         int (*cb_notify)(ldi_handle_t, ldi_ev_cookie_t, void *, void *);
  79         void (*cb_finalize)(ldi_handle_t, ldi_ev_cookie_t, int, void *, void *);
  80 } ldi_ev_callback_t;
  81
  82 /*
  83  * LDI Ident manipulation functions
  84  */
  85 extern ldi_ident_t ldi_ident_from_anon(void);
  86
  87 extern int ldi_ident_from_mod(struct modlinkage *, ldi_ident_t *);
  88 extern int ldi_ident_from_major(major_t major, ldi_ident_t *);
  89 extern int ldi_ident_from_dip(dev_info_t *dip, ldi_ident_t *);
  90 extern int ldi_ident_from_dev(dev_t, ldi_ident_t *);
  91 extern int ldi_ident_from_stream(struct queue *, ldi_ident_t *);
  92 extern void ldi_ident_release(ldi_ident_t);
  93
  94
  95 /*
  96  * LDI Handle manipulation functions
  97  */
  98 extern int ldi_open_by_dev(dev_t *, int, int, cred_t *,
  99     ldi_handle_t *, ldi_ident_t);
 100 extern int ldi_open_by_name(char *, int, cred_t *,
 101     ldi_handle_t *, ldi_ident_t);
 102 extern int ldi_open_by_devid(ddi_devid_t, char *, int, cred_t *,
 103     ldi_handle_t *, ldi_ident_t);
 104
 105 extern int ldi_close(ldi_handle_t, int flag, cred_t *);
 106
 107 extern int ldi_read(ldi_handle_t, struct uio *, cred_t *);
 108 extern int ldi_write(ldi_handle_t, struct uio *, cred_t *);
 109 extern int ldi_ioctl(ldi_handle_t, int, intptr_t, int, cred_t *, int *);
 110 extern int ldi_poll(ldi_handle_t, short, int, short *, struct pollhead **);
 111 extern int ldi_get_size(ldi_handle_t, uint64_t *);
 112 extern int ldi_prop_op(ldi_handle_t, ddi_prop_op_t, int,
 113     char *, caddr_t, int *);
 114
 115 extern int ldi_strategy(ldi_handle_t, struct buf *);
 116 extern int ldi_dump(ldi_handle_t, caddr_t, daddr_t, int);
 117 extern int ldi_devmap(ldi_handle_t, devmap_cookie_t, offset_t,
 118     size_t, size_t *, uint_t);
 119 extern int ldi_aread(ldi_handle_t, struct aio_req *, cred_t *);
 120 extern int ldi_awrite(ldi_handle_t, struct aio_req *, cred_t *);
 121
 122 extern int ldi_putmsg(ldi_handle_t, mblk_t *);
 123 extern int ldi_getmsg(ldi_handle_t, mblk_t **, timestruc_t *);
 124
 125 extern int ldi_prop_lookup_int_array(ldi_handle_t lh,
 126     uint_t flags, char *name, int **data, uint_t *nelements);
 127 extern int ldi_prop_lookup_int64_array(ldi_handle_t lh,
 128     uint_t flags, char *name, int64_t **data, uint_t *nelements);
 129 extern int ldi_prop_lookup_string_array(ldi_handle_t lh,
 130     uint_t flags, char *name, char ***data, uint_t *nelements);
 131 extern int ldi_prop_lookup_string(ldi_handle_t lh,
 132     uint_t flags, char *name, char **data);
 133 extern int ldi_prop_lookup_byte_array(ldi_handle_t lh,
 134     uint_t flags, char *name, uchar_t **data, uint_t *nelements);
 135 extern int ldi_prop_get_int(ldi_handle_t lh,
 136     uint_t flags, char *name, int defvalue);
 137 extern int64_t ldi_prop_get_int64(ldi_handle_t lh,
 138     uint_t flags, char *name, int64_t defvalue);
 139 extern int ldi_prop_exists(ldi_handle_t lh,
 140     uint_t flags, char *name);
 141
 142 extern int ldi_get_dev(ldi_handle_t, dev_t *);
 143 extern int ldi_get_otyp(ldi_handle_t, int *);
 144 extern int ldi_get_devid(ldi_handle_t, ddi_devid_t *);
 145 extern int ldi_get_minor_name(ldi_handle_t, char **);
 146
 147 /*
 148  * LDI events related declarations
 149  */
 150 extern int ldi_ev_get_cookie(ldi_handle_t lh, char *evname,
 151     ldi_ev_cookie_t *cookiep);
 152 extern char *ldi_ev_get_type(ldi_ev_cookie_t cookie);
 153 extern int ldi_ev_register_callbacks(ldi_handle_t lh,
 154     ldi_ev_cookie_t cookie, ldi_ev_callback_t *callb,
 155     void *arg, ldi_callback_id_t *id);
 156 extern int ldi_ev_notify(dev_info_t *dip, minor_t minor, int spec_type,
 157     ldi_ev_cookie_t cookie, void *ev_data);
 158 extern void ldi_ev_finalize(dev_info_t *dip, minor_t minor, int spec_type,
 159     int ldi_result, ldi_ev_cookie_t cookie, void *ev_data);
 160 extern int ldi_ev_remove_callbacks(ldi_callback_id_t id);
 161
 162 #endif  /* _KERNEL */
 163
 164 #ifdef  __cplusplus
 165 }
 166 #endif
 167
 168 #endif  /* _SYS_SUNLDI_H */