usr/src/uts/common/sys/dditypes.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 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _SYS_DDITYPES_H
  28 #define _SYS_DDITYPES_H
  29
  30 #include <sys/isa_defs.h>
  31 #ifndef _ASM
  32 #include <sys/types.h>
  33 #endif
  34
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 #ifndef _ASM
  40 /*
  41  * DMA types
  42  *
  43  * A DMA handle represent a "DMA object".  A DMA object is an abstraction
  44  * that represents the potential source or destination of DMA transfers to
  45  * or from a device.  The DMA object is the highest level description of
  46  * the source or destination and is not suitable for the actual transfer.
  47  *
  48  * Note, that we avoid the specific references to "mapping". The fact that
  49  * a transfer requires mapping is an artifact of the specific architectural
  50  * implementation.
  51  */
  52 typedef struct __ddi_dma_handle *ddi_dma_handle_t;
  53
  54 /*
  55  * A dma window type represents a "DMA window".  A DMA window is a portion
  56  * of a dma object or might be the entire object. A DMA window has had system
  57  * resources allocated to it and is prepared to be transferred into or
  58  * out of. Examples of system resources are DVMA mapping resources and
  59  * intermediate transfer buffer resources.
  60  *
  61  */
  62 typedef struct __ddi_dma_win *ddi_dma_win_t;
  63
  64
  65 /*
  66  * A dma segment type represents a "DMA segment".  A dma segment is a
  67  * contiguous portion of a DMA window which is entirely addressable by the
  68  * device for a transfer operation.  One example where DMA segments are
  69  * required is where the system does not contain DVMA capability and
  70  * the object or window may be non-contiguous.  In this example the
  71  * object or window will be broken into smaller contiguous segments.
  72  * Another example is where a device or some intermediary bus adapter has
  73  * some upper limit on its transfer size (i.e. an 8-bit address register).
  74  * In this example the object or window will be broken into smaller
  75  * addressable segments.
  76  */
  77 typedef struct __ddi_dma_seg *ddi_dma_seg_t;
  78
  79 /*
  80  * A DMA cookie contains DMA address information required to
  81  * program a DMA engine
  82  */
  83 typedef struct {
  84         union {
  85                 uint64_t        _dmac_ll;       /* 64 bit DMA address */
  86                 uint32_t        _dmac_la[2];    /* 2 x 32 bit address */
  87         } _dmu;
  88         size_t          dmac_size;      /* DMA cookie size */
  89         uint_t          dmac_type;      /* bus specific type bits */
  90 } ddi_dma_cookie_t;
  91
  92 #define dmac_laddress   _dmu._dmac_ll
  93 #ifdef _LONG_LONG_HTOL
  94 #define dmac_notused    _dmu._dmac_la[0]
  95 #define dmac_address    _dmu._dmac_la[1]
  96 #else
  97 #define dmac_address    _dmu._dmac_la[0]
  98 #define dmac_notused    _dmu._dmac_la[1]
  99 #endif
 100
 101 /*
 102  * Interrupt types
 103  */
 104
 105 /*
 106  * Both ddi_iblock_cookie_t and ddi_idevice_cookie_t are
 107  * obsolete data structures.
 108  *
 109  * lock initialization type
 110  */
 111 typedef struct __ddi_iblock_cookie *ddi_iblock_cookie_t;
 112 typedef union {
 113         struct {
 114                 ushort_t        _idev_vector;   /* vector - bus dependent */
 115                 ushort_t        _idev_priority; /* priority - bus dependent */
 116         } idu;
 117         uint_t  idev_softint;   /* Soft interrupt register bit(s) */
 118 } ddi_idevice_cookie_t;
 119 #define idev_vector     idu._idev_vector
 120 #define idev_priority   idu._idev_priority
 121
 122 /*
 123  * register specification
 124  */
 125 typedef struct __ddi_regspec *ddi_regspec_t;
 126
 127 /*
 128  * interrupt specification
 129  */
 130 typedef struct __ddi_intrspec *ddi_intrspec_t;
 131
 132 /*
 133  * ddi_softintr_t is an obsolete data structure.
 134  *
 135  * soft interrupt id
 136  */
 137 typedef struct __ddi_softintr *ddi_softintr_t;
 138
 139 /*
 140  * opaque device info handle
 141  */
 142 typedef struct __dev_info *dev_info_t;
 143
 144 /*
 145  * Mapping cookie for devmap(9E)
 146  */
 147 typedef struct __ddi_devmap_data *ddi_devmap_data_t;
 148
 149 /*
 150  * Opaque Device id
 151  */
 152 typedef struct __ddi_devid *ddi_devid_t;
 153
 154 /*
 155  * Device id types
 156  */
 157 #define DEVID_NONE              0
 158 #define DEVID_SCSI3_WWN         1
 159 #define DEVID_SCSI_SERIAL       2
 160 #define DEVID_FAB               3
 161 #define DEVID_ENCAP             4
 162 #define DEVID_ATA_SERIAL        5
 163 #define DEVID_SCSI3_VPD_T10     6
 164 #define DEVID_SCSI3_VPD_EUI     7
 165 #define DEVID_SCSI3_VPD_NAA     8
 166 #define DEVID_MAXTYPE           8
 167
 168 /*
 169  * Device id scsi encode versions (version of encode interface, not devid)
 170  */
 171 #define DEVID_SCSI_ENCODE_VERSION1              0
 172 #define DEVID_SCSI_ENCODE_VERSION2              1
 173 #define DEVID_SCSI_ENCODE_VERSION_LATEST        DEVID_SCSI_ENCODE_VERSION2
 174
 175 /*
 176  * Device id smp encode versions (version of encode interface, not devid)
 177  */
 178 #define DEVID_SMP_ENCODE_VERSION1               0
 179 #define DEVID_SMP_ENCODE_VERSION_LATEST         DEVID_SMP_ENCODE_VERSION1
 180
 181 /* minor name values for devid lookup interfaces */
 182 #define DEVID_MINOR_NAME_ALL            ((char *)0)
 183 #define DEVID_MINOR_NAME_ALL_CHR        ((char *)1)
 184 #define DEVID_MINOR_NAME_ALL_BLK        ((char *)2)
 185
 186 /*
 187  * Define ddi_devmap_cmd types. This should probably be elsewhere.
 188  */
 189 typedef enum {
 190         DDI_DEVMAP_VALIDATE = 0         /* Check mapping, but do nothing */
 191 } ddi_devmap_cmd_t;
 192
 193 /*
 194  * Definitions for node state.
 195  *
 196  * NOTE: DS_ATTACHED and DS_READY should only be used by the devcfg.c state
 197  * model code itself, other code should use i_ddi_devi_attached() to avoid
 198  * logic errors associated with transient DS_READY->DS_ATTACHED->DS_READY
 199  * state changes while the node is attached.
 200  */
 201 typedef enum {
 202         DS_INVAL = -1,
 203         DS_PROTO = 0,
 204         DS_LINKED,      /* in orphan list */
 205         DS_BOUND,       /* in per-driver list */
 206         DS_INITIALIZED, /* bus address assigned */
 207         DS_PROBED,      /* device known to exist */
 208         DS_ATTACHED,    /* don't use, see NOTE above: driver attached */
 209         DS_READY        /* don't use, see NOTE above: post attach complete */
 210 } ddi_node_state_t;
 211
 212 /*
 213  * NDI Event Service
 214  */
 215 typedef enum {EPL_KERNEL, EPL_INTERRUPT, EPL_HIGHLEVEL} ddi_plevel_t;
 216 typedef struct ddi_event_cookie *ddi_eventcookie_t;
 217 typedef struct ddi_event_callbacks *ddi_callback_id_t;
 218
 219 #endif  /* !_ASM */
 220
 221 #ifdef  _KERNEL
 222 #ifndef _ASM
 223
 224 /*
 225  * Device Access Attributes
 226  */
 227
 228 typedef struct ddi_device_acc_attr {
 229         ushort_t devacc_attr_version;
 230         uchar_t devacc_attr_endian_flags;
 231         uchar_t devacc_attr_dataorder;
 232         uchar_t devacc_attr_access;             /* access error protection */
 233 } ddi_device_acc_attr_t;
 234
 235 #define DDI_DEVICE_ATTR_V0      0x0001
 236 #define DDI_DEVICE_ATTR_V1      0x0002
 237
 238 /*
 239  * endian-ness flags
 240  */
 241 #define  DDI_NEVERSWAP_ACC      0x00
 242 #define  DDI_STRUCTURE_LE_ACC   0x01
 243 #define  DDI_STRUCTURE_BE_ACC   0x02
 244
 245 /*
 246  * Data ordering values
 247  */
 248 #define DDI_STRICTORDER_ACC     0x00
 249 #define DDI_UNORDERED_OK_ACC    0x01
 250 #define DDI_MERGING_OK_ACC      0x02
 251 #define DDI_LOADCACHING_OK_ACC  0x03
 252 #define DDI_STORECACHING_OK_ACC 0x04
 253
 254 /*
 255  * Data size
 256  */
 257 #define DDI_DATA_SZ01_ACC       1
 258 #define DDI_DATA_SZ02_ACC       2
 259 #define DDI_DATA_SZ04_ACC       4
 260 #define DDI_DATA_SZ08_ACC       8
 261
 262 /*
 263  * Data Access Handle
 264  */
 265 #define VERS_ACCHDL                     0x0001
 266
 267 typedef struct __ddi_acc_handle *ddi_acc_handle_t;
 268
 269 typedef struct ddi_acc_hdl {
 270         int     ah_vers;                /* version number */
 271         void    *ah_bus_private;        /* bus private pointer */
 272         void    *ah_platform_private;   /* platform private pointer */
 273         dev_info_t *ah_dip;             /* requesting device */
 274
 275         uint_t  ah_rnumber;             /* register number */
 276         caddr_t ah_addr;                /* address of mapping */
 277
 278         off_t   ah_offset;              /* offset of mapping */
 279         off_t   ah_len;                 /* length of mapping */
 280         uint_t  ah_hat_flags;           /* hat flags used to map object */
 281         pfn_t   ah_pfn;                 /* physical page frame number */
 282         uint_t  ah_pnum;                /* number of contiguous pages */
 283         ulong_t ah_xfermodes;           /* data transfer modes, etc */
 284         ddi_device_acc_attr_t ah_acc;   /* device access attributes */
 285 } ddi_acc_hdl_t;
 286
 287 /*
 288  * Used by DDI_CTLOPS_POKE and DDI_CTLOPS_PEEK for peek/poke and cautious acc
 289  */
 290 typedef struct {
 291         size_t                  size;
 292         uintptr_t               dev_addr;
 293         uintptr_t               host_addr;
 294         ddi_acc_handle_t        handle;
 295         size_t                  repcount;
 296         uint_t                  flags;
 297 } peekpoke_ctlops_t;
 298
 299 /*
 300  * Used by the high resolution timeout functions
 301  */
 302 typedef struct __ddi_periodic *ddi_periodic_t;
 303
 304 #endif  /* !_ASM */
 305
 306 /*
 307  * devacc_attr_access error protection types
 308  */
 309 #define DDI_DEFAULT_ACC         0x01    /* take default action */
 310 #define DDI_FLAGERR_ACC         0x02    /* protected against access faults */
 311 #define DDI_CAUTIOUS_ACC        0x03    /* high protection against faults */
 312
 313 #endif  /* _KERNEL */
 314
 315 #ifdef  __cplusplus
 316 }
 317 #endif
 318
 319 #endif  /* _SYS_DDITYPES_H */