LXR linux/drivers/scsi/aic7xxx/aic79xx

   1/*
   2 * Inline routines shareable across OS platforms.
   3 *
   4 * Copyright (c) 1994-2001 Justin T. Gibbs.
   5 * Copyright (c) 2000-2003 Adaptec Inc.
   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 *    without modification.
  14 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  15 *    substantially similar to the "NO WARRANTY" disclaimer below
  16 *    ("Disclaimer") and any redistribution must be conditioned upon
  17 *    including a substantially similar Disclaimer requirement for further
  18 *    binary redistribution.
  19 * 3. Neither the names of the above-listed copyright holders nor the names
  20 *    of any contributors may be used to endorse or promote products derived
  21 *    from this software without specific prior written permission.
  22 *
  23 * Alternatively, this software may be distributed under the terms of the
  24 * GNU General Public License ("GPL") version 2 as published by the Free
  25 * Software Foundation.
  26 *
  27 * NO WARRANTY
  28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  32 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  37 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38 * POSSIBILITY OF SUCH DAMAGES.
  39 *
  40 * $Id: //depot/aic7xxx/aic7xxx/aic79xx_inline.h#59 $
  41 *
  42 * $FreeBSD$
  43 */
  44
  45#ifndef _AIC79XX_INLINE_H_
  46#define _AIC79XX_INLINE_H_
  47
  48/******************************** Debugging ***********************************/
  49static inline char *ahd_name(struct ahd_softc *ahd);
  50
  51static inline char *ahd_name(struct ahd_softc *ahd)
  52{
  53        return (ahd->name);
  54}
  55
  56/************************ Sequencer Execution Control *************************/
  57static inline void ahd_known_modes(struct ahd_softc *ahd,
  58                                     ahd_mode src, ahd_mode dst);
  59static inline ahd_mode_state ahd_build_mode_state(struct ahd_softc *ahd,
  60                                                    ahd_mode src,
  61                                                    ahd_mode dst);
  62static inline void ahd_extract_mode_state(struct ahd_softc *ahd,
  63                                            ahd_mode_state state,
  64                                            ahd_mode *src, ahd_mode *dst);
  65
  66void ahd_set_modes(struct ahd_softc *ahd, ahd_mode src,
  67                   ahd_mode dst);
  68ahd_mode_state ahd_save_modes(struct ahd_softc *ahd);
  69void ahd_restore_modes(struct ahd_softc *ahd,
  70                       ahd_mode_state state);
  71int  ahd_is_paused(struct ahd_softc *ahd);
  72void ahd_pause(struct ahd_softc *ahd);
  73void ahd_unpause(struct ahd_softc *ahd);
  74
  75static inline void
  76ahd_known_modes(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
  77{
  78        ahd->src_mode = src;
  79        ahd->dst_mode = dst;
  80        ahd->saved_src_mode = src;
  81        ahd->saved_dst_mode = dst;
  82}
  83
  84static inline ahd_mode_state
  85ahd_build_mode_state(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
  86{
  87        return ((src << SRC_MODE_SHIFT) | (dst << DST_MODE_SHIFT));
  88}
  89
  90static inline void
  91ahd_extract_mode_state(struct ahd_softc *ahd, ahd_mode_state state,
  92                       ahd_mode *src, ahd_mode *dst)
  93{
  94        *src = (state & SRC_MODE) >> SRC_MODE_SHIFT;
  95        *dst = (state & DST_MODE) >> DST_MODE_SHIFT;
  96}
  97
  98/*********************** Scatter Gather List Handling *************************/
  99void    *ahd_sg_setup(struct ahd_softc *ahd, struct scb *scb,
 100                      void *sgptr, dma_addr_t addr,
 101                      bus_size_t len, int last);
 102
 103/************************** Memory mapping routines ***************************/
 104static inline size_t    ahd_sg_size(struct ahd_softc *ahd);
 105
 106void    ahd_sync_sglist(struct ahd_softc *ahd,
 107                        struct scb *scb, int op);
 108
 109static inline size_t ahd_sg_size(struct ahd_softc *ahd)
 110{
 111        if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0)
 112                return (sizeof(struct ahd_dma64_seg));
 113        return (sizeof(struct ahd_dma_seg));
 114}
 115
 116/*********************** Miscellaneous Support Functions ***********************/
 117struct ahd_initiator_tinfo *
 118        ahd_fetch_transinfo(struct ahd_softc *ahd,
 119                            char channel, u_int our_id,
 120                            u_int remote_id,
 121                            struct ahd_tmode_tstate **tstate);
 122uint16_t
 123        ahd_inw(struct ahd_softc *ahd, u_int port);
 124void    ahd_outw(struct ahd_softc *ahd, u_int port,
 125                 u_int value);
 126uint32_t
 127        ahd_inl(struct ahd_softc *ahd, u_int port);
 128void    ahd_outl(struct ahd_softc *ahd, u_int port,
 129                 uint32_t value);
 130uint64_t
 131        ahd_inq(struct ahd_softc *ahd, u_int port);
 132void    ahd_outq(struct ahd_softc *ahd, u_int port,
 133                 uint64_t value);
 134u_int   ahd_get_scbptr(struct ahd_softc *ahd);
 135void    ahd_set_scbptr(struct ahd_softc *ahd, u_int scbptr);
 136u_int   ahd_inb_scbram(struct ahd_softc *ahd, u_int offset);
 137u_int   ahd_inw_scbram(struct ahd_softc *ahd, u_int offset);
 138struct scb *
 139        ahd_lookup_scb(struct ahd_softc *ahd, u_int tag);
 140void    ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb);
 141
 142static inline uint8_t *ahd_get_sense_buf(struct ahd_softc *ahd,
 143                                          struct scb *scb);
 144static inline uint32_t ahd_get_sense_bufaddr(struct ahd_softc *ahd,
 145                                              struct scb *scb);
 146
 147#if 0 /* unused */
 148
 149#define AHD_COPY_COL_IDX(dst, src)                              \
 150do {                                                            \
 151        dst->hscb->scsiid = src->hscb->scsiid;                  \
 152        dst->hscb->lun = src->hscb->lun;                        \
 153} while (0)
 154
 155#endif
 156
 157static inline uint8_t *
 158ahd_get_sense_buf(struct ahd_softc *ahd, struct scb *scb)
 159{
 160        return (scb->sense_data);
 161}
 162
 163static inline uint32_t
 164ahd_get_sense_bufaddr(struct ahd_softc *ahd, struct scb *scb)
 165{
 166        return (scb->sense_busaddr);
 167}
 168
 169/************************** Interrupt Processing ******************************/
 170int     ahd_intr(struct ahd_softc *ahd);
 171
 172#endif  /* _AIC79XX_INLINE_H_ */
 173