FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/aic79xx_openbsd.h

     /*      $OpenBSD: aic79xx_openbsd.h,v 1.21 2020/07/28 21:33:14 krw Exp $        */
     
     /*
      * Copyright (c) 2004 Milos Urbanek, Kenneth R. Westerback & Marco Peereboom
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
     * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     */
    
    /*
     * FreeBSD platform specific driver option settings, data structures,
     * function declarations and includes.
     *
     * Copyright (c) 1994-2001 Justin T. Gibbs.
     * Copyright (c) 2001-2002 Adaptec Inc.
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions, and the following disclaimer,
     *    without modification.
     * 2. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * Alternatively, this software may be distributed under the terms of the
     * GNU Public License ("GPL").
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.h,v 1.13 2003/12/17 00:02:09 gibbs Exp $
     *
     */
    
    #ifndef _AIC79XX_OPENBSD_H_
    #define _AIC79XX_OPENBSD_H_
    
    #include "pci.h"                /* for config options */
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/systm.h>
    #include <sys/device.h>
    #include <sys/malloc.h>
    #include <sys/buf.h>
    #include <sys/queue.h>
    
    #define AIC_PCI_CONFIG 1
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcivar.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <scsi/scsi_all.h>
    #include <scsi/scsi_message.h>
    #include <scsi/scsiconf.h>
    
    #include <uvm/uvm_extern.h>
    
    #ifdef DEBUG
    #define bootverbose     1
    #else
    #define bootverbose     0
    #endif
    /****************************** Platform Macros *******************************/
    #define SCSI_IS_SCSIBUS_B(ahd, sc_link) \
            (0)
   #define SCSI_CHANNEL(ahd, sc_link)      \
           ('A')
   #define SCSI_SCSI_ID(ahd, sc_link)      \
           (ahd->our_id)
   #define BUILD_SCSIID(ahd, sc_link, target_id, our_id) \
           ((((target_id) << TID_SHIFT) & TID) | (our_id))
   
   #ifndef offsetof
   #define offsetof(type, member)  ((size_t)(&((type *)0)->member))
   #endif
   
   /************************* Forward Declarations *******************************/
   typedef struct pci_attach_args * ahd_dev_softc_t;
   
   /***************************** Bus Space/DMA **********************************/
   
   /* XXX Need to update Bus DMA for partial map syncs */
   #define ahd_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op)          \
           bus_dmamap_sync(dma_tag, dmamap, offset, len, op)
   
   /************************ Tunable Driver Parameters  **************************/
   /*
    * The number of dma segments supported.  The sequencer can handle any number
    * of physically contiguous S/G entries.  To reduce the driver's memory
    * consumption, we limit the number supported to be sufficient to handle
    * the largest mapping supported by the kernel, MAXPHYS.  Assuming the
    * transfer is as fragmented as possible and unaligned, this turns out to
    * be the number of paged sized transfers in MAXPHYS plus an extra element
    * to handle any unaligned residual.  The sequencer fetches SG elements
    * in cacheline sized chucks, so make the number per-transaction an even
    * multiple of 16 which should align us on even the largest of cacheline
    * boundaries.
    */
   #define AHD_NSEG (roundup(atop(MAXPHYS) + 1, 16))
   
   /* This driver supports target mode */
   // #define AHD_TARGET_MODE 1
   
   /************************** Timer DataStructures ******************************/
   typedef struct timeout aic_timer_t;
   
   /***************************** Core Includes **********************************/
   
   #if AHD_REG_PRETTY_PRINT
   #define AIC_DEBUG_REGISTERS 1
   #else
   #define AIC_DEBUG_REGISTERS 0
   #endif
   #include <dev/ic/aic79xx.h>
   
   /***************************** Timer Facilities *******************************/
   void ahd_timeout(void*);
   void aic_timer_reset(aic_timer_t *, u_int, ahd_callback_t *, void *);
   void aic_scb_timer_reset(struct scb *, u_int);
   
   #define aic_timer_stop timeout_del
   #define aic_get_timeout(scb) ((scb)->xs->timeout)
   /*************************** Device Access ************************************/
   #define ahd_inb(ahd, port)                                      \
           bus_space_read_1((ahd)->tags[(port) >> 8],              \
                            (ahd)->bshs[(port) >> 8], (port) & 0xFF)
   
   #define ahd_outb(ahd, port, value)                              \
           bus_space_write_1((ahd)->tags[(port) >> 8],             \
                             (ahd)->bshs[(port) >> 8], (port) & 0xFF, value)
   
   #define ahd_inw_atomic(ahd, port)                               \
           aic_le16toh(bus_space_read_2((ahd)->tags[(port) >> 8],  \
                                        (ahd)->bshs[(port) >> 8], (port) & 0xFF))
   
   #define ahd_outw_atomic(ahd, port, value)                       \
           bus_space_write_2((ahd)->tags[(port) >> 8],             \
                             (ahd)->bshs[(port) >> 8],             \
                             (port & 0xFF), aic_htole16(value))
   
   #define ahd_outsb(ahd, port, valp, count)                       \
           bus_space_write_multi_1((ahd)->tags[(port) >> 8],       \
                                   (ahd)->bshs[(port) >> 8],       \
                                   (port & 0xFF), valp, count)
   
   #define ahd_insb(ahd, port, valp, count)                        \
           bus_space_read_multi_1((ahd)->tags[(port) >> 8],        \
                                  (ahd)->bshs[(port) >> 8],        \
                                  (port & 0xFF), valp, count)
   
   void ahd_flush_device_writes(struct ahd_softc *);
   
   /**************************** Locking Primitives ******************************/
   /* Lock protecting internal data structures */
   #define ahd_lockinit(ahd)
   #define ahd_lock(ahd, flags) *(flags) = splbio()
   #define ahd_unlock(ahd, flags) splx(*(flags))
   
   /* Lock held during command completion to the upper layer */
   #define ahd_done_lockinit(ahd)
   #define ahd_done_lock(ahd, flags)
   #define ahd_done_unlock(ahd, flags)
   
   /* Lock held during ahd_list manipulation and ahd softc frees */
   #define ahd_list_lockinit(x)
   #define ahd_list_lock(flags) *(flags) = splbio()
   #define ahd_list_unlock(flags) splx(*(flags))
   
   /****************************** OS Primitives *********************************/
   #define scsi_4btoul(b)  (_4btol(b))
   
   /************************** Transaction Operations ****************************/
   #define aic_set_transaction_status(scb, status) (scb)->xs->error = (status)
   #define aic_set_scsi_status(scb, status) (scb)->xs->xs_status = (status)
   #define aic_set_transaction_tag(scb, enabled, type)
   #define aic_set_residual(scb, residual) (scb)->xs->resid = (residual)
   #define aic_set_sense_residual(scb, residual) (scb)->xs->resid = (residual)
   
   #define aic_get_transaction_status(scb) \
           (((scb)->xs->flags & ITSDONE) ? CAM_REQ_CMP : (scb)->xs->error)
   #define aic_get_scsi_status(scb) ((scb)->xs->status)
   #define aic_get_transfer_length(scb) ((scb)->xs->datalen)
   #define aic_get_transfer_dir(scb) \
           ((scb)->xs->flags & (SCSI_DATA_IN | SCSI_DATA_OUT))
   #define aic_get_residual(scb) ((scb)->xs->resid)
   #define aic_get_sense_bufsize(ahd, scb) (sizeof(struct scsi_sense_data))
   
   #define aic_perform_autosense(scb) (1)
   
   #define aic_freeze_simq(ahd)
   #define aic_release_simq(ahd)
   #define aic_freeze_scb(scb)
   
   void aic_platform_scb_free(struct ahd_softc *, struct scb *);
   
   /********************************** PCI ***************************************/
   /*#if AHD_PCI_CONFIG > 0*/
   #define aic_get_pci_function(pci) ((pci)->pa_function)
   #define aic_get_pci_slot(pci) ((pci)->pa_device)
   #define aic_get_pci_bus(pci) ((pci)->pa_bus)
   
   int                     ahd_pci_map_registers(struct ahd_softc *);
   int                     ahd_pci_map_int(struct ahd_softc *);
   /*#endif*/
   
   typedef enum
   {
           AHD_POWER_STATE_D0,
           AHD_POWER_STATE_D1,
           AHD_POWER_STATE_D2,
           AHD_POWER_STATE_D3
   } ahd_power_state;
   
   void ahd_power_state_change(struct ahd_softc *, ahd_power_state);
   
   /********************************* Debug **************************************/
   void    ahd_print_path(struct ahd_softc *, struct scb *);
   void    ahd_platform_dump_card_state(struct ahd_softc *ahd);
   
   /**************************** Transfer Settings *******************************/
   void      ahd_notify_xfer_settings_change(struct ahd_softc *,
                                             struct ahd_devinfo *);
   void      ahd_platform_set_tags(struct ahd_softc *, struct ahd_devinfo *,
                                   ahd_queue_alg);
   
   /************************* Initialization/Teardown ****************************/
   int       ahd_attach(struct ahd_softc *);
   int       ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd);
   int       ahd_detach(struct device *, int);
   
   /****************************** Interrupts ************************************/
   int                     ahd_platform_intr(void *);
   
   /************************ Misc Function Declarations **************************/
   void      ahd_done(struct ahd_softc *, struct scb *);
   void      ahd_send_async(struct ahd_softc *, char /*channel*/,
                            u_int /*target*/, u_int /*lun*/, ac_code, void *arg);
   #endif  /* _AIC79XX_OPENBSD_H_ */

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