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/dev/twe/twe_compat.h

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    1 /*-
    2  * Copyright (c) 2000 Michael Smith
    3  * Copyright (c) 2003 Paul Saab
    4  * Copyright (c) 2003 Vinod Kashyap
    5  * Copyright (c) 2000 BSDi
    6  * 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  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * $FreeBSD: releng/8.4/sys/dev/twe/twe_compat.h 146734 2005-05-29 04:42:30Z nyan $
   30  */
   31 /*
   32  * Portability and compatibility interfaces.
   33  */
   34 
   35 #ifdef __FreeBSD__
   36 /******************************************************************************
   37  * FreeBSD
   38  */
   39 #define TWE_SUPPORTED_PLATFORM
   40 
   41 #include <sys/param.h>
   42 #include <sys/endian.h>
   43 #include <sys/systm.h>
   44 #include <sys/malloc.h>
   45 #include <sys/kernel.h>
   46 #include <sys/module.h>
   47 #include <sys/sysctl.h>
   48 
   49 #include <sys/bus.h>
   50 #include <sys/conf.h>
   51 #include <sys/disk.h>
   52 #include <sys/stat.h>
   53 
   54 #include <machine/bus.h>
   55 #include <machine/resource.h>
   56 #include <sys/rman.h>
   57 
   58 #include <dev/pci/pcireg.h>
   59 #include <dev/pci/pcivar.h>
   60 
   61 #define TWE_DRIVER_NAME         twe
   62 #define TWED_DRIVER_NAME        twed
   63 #define TWE_MALLOC_CLASS        M_TWE
   64 
   65 /* 
   66  * Wrappers for bus-space actions
   67  */
   68 #define TWE_CONTROL(sc, val)            bus_space_write_4((sc)->twe_btag, (sc)->twe_bhandle, 0x0, (u_int32_t)val)
   69 #define TWE_STATUS(sc)                  (u_int32_t)bus_space_read_4((sc)->twe_btag, (sc)->twe_bhandle, 0x4)
   70 #define TWE_COMMAND_QUEUE(sc, val)      bus_space_write_4((sc)->twe_btag, (sc)->twe_bhandle, 0x8, (u_int32_t)val)
   71 #define TWE_RESPONSE_QUEUE(sc)          (TWE_Response_Queue)bus_space_read_4((sc)->twe_btag, (sc)->twe_bhandle, 0xc)
   72 
   73 /*
   74  * FreeBSD-specific softc elements
   75  */
   76 #define TWE_PLATFORM_SOFTC                                                              \
   77     bus_dmamap_t                twe_cmdmap;     /* DMA map for command */                               \
   78     u_int32_t                   twe_cmdphys;    /* address of command in controller space */            \
   79     device_t                    twe_dev;                /* bus device */                \
   80     struct cdev *twe_dev_t;             /* control device */            \
   81     struct resource             *twe_io;                /* register interface window */ \
   82     bus_space_handle_t          twe_bhandle;            /* bus space handle */          \
   83     bus_space_tag_t             twe_btag;               /* bus space tag */             \
   84     bus_dma_tag_t               twe_parent_dmat;        /* parent DMA tag */            \
   85     bus_dma_tag_t               twe_buffer_dmat;        /* data buffer DMA tag */       \
   86     bus_dma_tag_t               twe_cmd_dmat;           /* command buffer DMA tag */    \
   87     bus_dma_tag_t               twe_immediate_dmat;     /* command buffer DMA tag */    \
   88     struct resource             *twe_irq;               /* interrupt */                 \
   89     void                        *twe_intr;              /* interrupt handle */          \
   90     struct intr_config_hook     twe_ich;                /* delayed-startup hook */      \
   91     void                        *twe_cmd;               /* command structures */        \
   92     void                        *twe_immediate;         /* immediate commands */        \
   93     bus_dmamap_t                twe_immediate_map;                                      \
   94     struct sysctl_ctx_list      sysctl_ctx;                                             \
   95     struct sysctl_oid           *sysctl_tree;
   96 
   97 /*
   98  * FreeBSD-specific request elements
   99  */
  100 #define TWE_PLATFORM_REQUEST                                                                            \
  101     bus_dmamap_t                tr_dmamap;      /* DMA map for data */                                  \
  102     u_int32_t                   tr_dataphys;    /* data buffer base address in controller space */
  103 
  104 /*
  105  * Output identifying the controller/disk
  106  */
  107 #define twe_printf(sc, fmt, args...)    device_printf(sc->twe_dev, fmt , ##args)
  108 #define twed_printf(twed, fmt, args...) device_printf(twed->twed_dev, fmt , ##args)
  109 
  110 #if __FreeBSD_version < 500003
  111 # include <machine/clock.h>
  112 # define INTR_ENTROPY                   0
  113 # define FREEBSD_4
  114 
  115 # include <sys/buf.h>                   /* old buf style */
  116 typedef struct buf                      twe_bio;
  117 typedef struct buf_queue_head           twe_bioq;
  118 # define TWE_BIO_QINIT(bq)              bufq_init(&bq);
  119 # define TWE_BIO_QINSERT(bq, bp)        bufq_insert_tail(&bq, bp)
  120 # define TWE_BIO_QFIRST(bq)             bufq_first(&bq)
  121 # define TWE_BIO_QREMOVE(bq, bp)        bufq_remove(&bq, bp)
  122 # define TWE_BIO_IS_READ(bp)            ((bp)->b_flags & B_READ)
  123 # define TWE_BIO_DATA(bp)               (bp)->b_data
  124 # define TWE_BIO_LENGTH(bp)             (bp)->b_bcount
  125 # define TWE_BIO_LBA(bp)                (bp)->b_pblkno
  126 # define TWE_BIO_SOFTC(bp)              (bp)->b_dev->si_drv1
  127 # define TWE_BIO_UNIT(bp)               *(int *)((bp)->b_dev->si_drv2)
  128 # define TWE_BIO_SET_ERROR(bp, err)     do { (bp)->b_error = err; (bp)->b_flags |= B_ERROR;} while(0)
  129 # define TWE_BIO_HAS_ERROR(bp)          ((bp)->b_flags & B_ERROR)
  130 # define TWE_BIO_RESID(bp)              (bp)->b_resid
  131 # define TWE_BIO_DONE(bp)               biodone(bp)
  132 # define TWE_BIO_STATS_START(bp)        devstat_start_transaction(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats)
  133 # define TWE_BIO_STATS_END(bp)          devstat_end_transaction_buf(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats, bp)
  134 #else
  135 # include <sys/bio.h>
  136 # include <geom/geom_disk.h>
  137 typedef struct bio                      twe_bio;
  138 typedef struct bio_queue_head           twe_bioq;
  139 # define TWE_BIO_QINIT(bq)              bioq_init(&bq);
  140 # define TWE_BIO_QINSERT(bq, bp)        bioq_insert_tail(&bq, bp)
  141 # define TWE_BIO_QFIRST(bq)             bioq_first(&bq)
  142 # define TWE_BIO_QREMOVE(bq, bp)        bioq_remove(&bq, bp)
  143 # define TWE_BIO_IS_READ(bp)            ((bp)->bio_cmd == BIO_READ)
  144 # define TWE_BIO_DATA(bp)               (bp)->bio_data
  145 # define TWE_BIO_LENGTH(bp)             (bp)->bio_bcount
  146 # define TWE_BIO_LBA(bp)                (bp)->bio_pblkno
  147 # define TWE_BIO_SOFTC(bp)              (bp)->bio_disk->d_drv1
  148 # define TWE_BIO_UNIT(bp)               *(int *)(bp->bio_driver1)
  149 # define TWE_BIO_SET_ERROR(bp, err)     do { (bp)->bio_error = err; (bp)->bio_flags |= BIO_ERROR;} while(0)
  150 # define TWE_BIO_HAS_ERROR(bp)          ((bp)->bio_flags & BIO_ERROR)
  151 # define TWE_BIO_RESID(bp)              (bp)->bio_resid
  152 # define TWE_BIO_DONE(bp)               biodone(bp)
  153 # define TWE_BIO_STATS_START(bp)
  154 # define TWE_BIO_STATS_END(bp)
  155 #endif
  156 
  157 #endif /* FreeBSD */
  158 
  159 #ifndef TWE_SUPPORTED_PLATFORM
  160 #error platform not supported
  161 #endif

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