mirror of
https://github.com/freebsd/freebsd-src
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271 lines
8.7 KiB
C
271 lines
8.7 KiB
C
/*-
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* FreeBSD platform specific driver option settings, data structures,
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* function declarations and includes.
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*
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* Copyright (c) 1994-2001 Justin T. Gibbs.
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* Copyright (c) 2001-2002 Adaptec Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU Public License ("GPL").
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.h#23 $
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*/
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#ifndef _AIC79XX_FREEBSD_H_
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#define _AIC79XX_FREEBSD_H_
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#include "opt_aic79xx.h" /* for config options */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h> /* For device_t */
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#include <sys/endian.h>
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#include <sys/eventhandler.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/queue.h>
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#include <sys/sysctl.h>
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#define AIC_PCI_CONFIG 1
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#include <machine/bus.h>
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#include <machine/endian.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_debug.h>
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#include <cam/cam_sim.h>
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#include <cam/cam_xpt_sim.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/scsi/scsi_message.h>
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#include <cam/scsi/scsi_iu.h>
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/****************************** Platform Macros *******************************/
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#define SIM_IS_SCSIBUS_B(ahd, sim) \
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(0)
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#define SIM_CHANNEL(ahd, sim) \
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('A')
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#define SIM_SCSI_ID(ahd, sim) \
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(ahd->our_id)
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#define SIM_PATH(ahd, sim) \
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(ahd->platform_data->path)
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#define BUILD_SCSIID(ahd, sim, target_id, our_id) \
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((((target_id) << TID_SHIFT) & TID) | (our_id))
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#define SCB_GET_SIM(ahd, scb) \
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((ahd)->platform_data->sim)
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#ifndef offsetof
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#define offsetof(type, member) ((size_t)(&((type *)0)->member))
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#endif
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/************************ Tunable Driver Parameters **************************/
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/*
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* The number of dma segments supported. The sequencer can handle any number
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* of physically contiguous S/G entrys. To reduce the driver's memory
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* consumption, we limit the number supported to be sufficient to handle
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* the largest mapping supported by the legacy kernel MAXPHYS setting of
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* 128K. This can be increased once some testing is done. Assuming the
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* transfer is as fragmented as possible and unaligned, this turns out to
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* be the number of paged sized transfers in MAXPHYS plus an extra element
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* to handle any unaligned residual. The sequencer fetches SG elements
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* in cacheline sized chucks, so make the number per-transaction an even
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* multiple of 16 which should align us on even the largest of cacheline
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* boundaries.
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*/
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#define AHD_MAXPHYS (128 * 1024)
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#define AHD_NSEG (roundup(btoc(AHD_MAXPHYS) + 1, 16))
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/* This driver supports target mode */
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#ifdef NOT_YET
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#define AHD_TARGET_MODE 1
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#endif
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/************************** Softc/SCB Platform Data ***************************/
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struct ahd_platform_data {
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/*
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* Hooks into the XPT.
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*/
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struct cam_sim *sim;
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struct cam_path *path;
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int regs_res_type[2];
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int regs_res_id[2];
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int irq_res_type;
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struct resource *regs[2];
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struct resource *irq;
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void *ih;
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eventhandler_tag eh;
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struct proc *recovery_thread;
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struct mtx mtx;
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};
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struct scb_platform_data {
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};
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/***************************** Core Includes **********************************/
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#ifdef AHD_REG_PRETTY_PRINT
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#define AIC_DEBUG_REGISTERS 1
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#else
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#define AIC_DEBUG_REGISTERS 0
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#endif
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#define AIC_CORE_INCLUDE <dev/aic7xxx/aic79xx.h>
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#define AIC_LIB_PREFIX ahd
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#define AIC_CONST_PREFIX AHD
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#include <dev/aic7xxx/aic_osm_lib.h>
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/*************************** Device Access ************************************/
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#define ahd_inb(ahd, port) \
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bus_space_read_1((ahd)->tags[(port) >> 8], \
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(ahd)->bshs[(port) >> 8], (port) & 0xFF)
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#define ahd_outb(ahd, port, value) \
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bus_space_write_1((ahd)->tags[(port) >> 8], \
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(ahd)->bshs[(port) >> 8], (port) & 0xFF, value)
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#define ahd_inw_atomic(ahd, port) \
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aic_le16toh(bus_space_read_2((ahd)->tags[(port) >> 8], \
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(ahd)->bshs[(port) >> 8], (port) & 0xFF))
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#define ahd_outw_atomic(ahd, port, value) \
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bus_space_write_2((ahd)->tags[(port) >> 8], \
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(ahd)->bshs[(port) >> 8], \
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(port & 0xFF), aic_htole16(value))
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#define ahd_outsb(ahd, port, valp, count) \
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bus_space_write_multi_1((ahd)->tags[(port) >> 8], \
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(ahd)->bshs[(port) >> 8], \
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(port & 0xFF), valp, count)
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#define ahd_insb(ahd, port, valp, count) \
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bus_space_read_multi_1((ahd)->tags[(port) >> 8], \
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(ahd)->bshs[(port) >> 8], \
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(port & 0xFF), valp, count)
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static __inline void ahd_flush_device_writes(struct ahd_softc *);
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static __inline void
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ahd_flush_device_writes(struct ahd_softc *ahd)
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{
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/* XXX Is this sufficient for all architectures??? */
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ahd_inb(ahd, INTSTAT);
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}
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/**************************** Locking Primitives ******************************/
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/* Lock protecting internal data structures */
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static __inline void ahd_lockinit(struct ahd_softc *);
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static __inline void ahd_lock(struct ahd_softc *);
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static __inline void ahd_unlock(struct ahd_softc *);
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static __inline void
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ahd_lockinit(struct ahd_softc *ahd)
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{
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mtx_init(&ahd->platform_data->mtx, "ahd_lock", NULL, MTX_DEF);
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}
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static __inline void
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ahd_lock(struct ahd_softc *ahd)
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{
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mtx_lock(&ahd->platform_data->mtx);
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}
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static __inline void
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ahd_unlock(struct ahd_softc *ahd)
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{
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mtx_unlock(&ahd->platform_data->mtx);
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}
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/********************************** PCI ***************************************/
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int ahd_pci_map_registers(struct ahd_softc *ahd);
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int ahd_pci_map_int(struct ahd_softc *ahd);
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/************************** Transaction Operations ****************************/
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static __inline void aic_freeze_simq(struct aic_softc*);
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static __inline void aic_release_simq(struct aic_softc*);
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static __inline void
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aic_freeze_simq(struct aic_softc *aic)
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{
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xpt_freeze_simq(aic->platform_data->sim, /*count*/1);
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}
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static __inline void
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aic_release_simq(struct aic_softc *aic)
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{
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xpt_release_simq(aic->platform_data->sim, /*run queue*/TRUE);
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}
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/********************************* Debug **************************************/
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static __inline void ahd_print_path(struct ahd_softc *, struct scb *);
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static __inline void ahd_platform_dump_card_state(struct ahd_softc *ahd);
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static __inline void
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ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
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{
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xpt_print_path(scb->io_ctx->ccb_h.path);
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}
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static __inline void
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ahd_platform_dump_card_state(struct ahd_softc *ahd)
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{
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/* Nothing to do here for FreeBSD */
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}
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/**************************** Transfer Settings *******************************/
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void ahd_notify_xfer_settings_change(struct ahd_softc *,
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struct ahd_devinfo *);
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void ahd_platform_set_tags(struct ahd_softc *, struct ahd_devinfo *,
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int /*enable*/);
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/************************* Initialization/Teardown ****************************/
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int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg);
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void ahd_platform_free(struct ahd_softc *ahd);
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int ahd_map_int(struct ahd_softc *ahd);
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int ahd_attach(struct ahd_softc *);
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int ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd);
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void ahd_sysctl(struct ahd_softc *ahd);
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int ahd_detach(device_t);
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#define ahd_platform_init(arg)
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/****************************** Interrupts ************************************/
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void ahd_platform_intr(void *);
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static __inline void ahd_platform_flushwork(struct ahd_softc *ahd);
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static __inline void
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ahd_platform_flushwork(struct ahd_softc *ahd)
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{
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}
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/************************ Misc Function Declarations **************************/
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void ahd_done(struct ahd_softc *ahd, struct scb *scb);
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void ahd_send_async(struct ahd_softc *, char /*channel*/,
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u_int /*target*/, u_int /*lun*/, ac_code, void *arg);
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#endif /* _AIC79XX_FREEBSD_H_ */
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