599 lines
18 KiB
C
599 lines
18 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#14 $
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*
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* $FreeBSD$
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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/stdint.h>
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#include <sys/bus.h> /* For device_t */
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#if __FreeBSD_version >= 500000
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#include <sys/endian.h>
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#endif
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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/queue.h>
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#define AHD_PCI_CONFIG 1
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#include <machine/bus_memio.h>
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <machine/endian.h>
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#include <machine/clock.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <pci/pcireg.h>
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#include <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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#ifdef CAM_NEW_TRAN_CODE
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#define AHD_NEW_TRAN_SETTINGS
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#endif /* CAM_NEW_TRAN_CODE */
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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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/************************* Forward Declarations *******************************/
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typedef device_t ahd_dev_softc_t;
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typedef union ccb *ahd_io_ctx_t;
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/***************************** Bus Space/DMA **********************************/
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#define ahd_dma_tag_create(ahd, parent_tag, alignment, boundary, \
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lowaddr, highaddr, filter, filterarg, \
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maxsize, nsegments, maxsegsz, flags, \
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dma_tagp) \
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bus_dma_tag_create(parent_tag, alignment, boundary, \
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lowaddr, highaddr, filter, filterarg, \
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maxsize, nsegments, maxsegsz, flags, \
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dma_tagp)
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#define ahd_dma_tag_destroy(ahd, tag) \
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bus_dma_tag_destroy(tag)
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#define ahd_dmamem_alloc(ahd, dmat, vaddr, flags, mapp) \
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bus_dmamem_alloc(dmat, vaddr, flags, mapp)
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#define ahd_dmamem_free(ahd, dmat, vaddr, map) \
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bus_dmamem_free(dmat, vaddr, map)
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#define ahd_dmamap_create(ahd, tag, flags, mapp) \
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bus_dmamap_create(tag, flags, mapp)
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#define ahd_dmamap_destroy(ahd, tag, map) \
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bus_dmamap_destroy(tag, map)
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#define ahd_dmamap_load(ahd, dmat, map, addr, buflen, callback, \
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callback_arg, flags) \
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bus_dmamap_load(dmat, map, addr, buflen, callback, callback_arg, flags)
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#define ahd_dmamap_unload(ahd, tag, map) \
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bus_dmamap_unload(tag, map)
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/* XXX Need to update Bus DMA for partial map syncs */
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#define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op) \
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bus_dmamap_sync(dma_tag, dmamap, op)
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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 kernel, MAXPHYS. 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_NSEG (roundup(btoc(MAXPHYS) + 1, 16))
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/* This driver supports target mode */
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#if 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_sim *sim_b;
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struct cam_path *path;
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struct cam_path *path_b;
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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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};
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struct scb_platform_data {
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};
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/********************************* Byte Order *********************************/
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#if __FreeBSD_version >= 500000
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#define ahd_htobe16(x) htobe16(x)
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#define ahd_htobe32(x) htobe32(x)
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#define ahd_htobe64(x) htobe64(x)
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#define ahd_htole16(x) htole16(x)
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#define ahd_htole32(x) htole32(x)
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#define ahd_htole64(x) htole64(x)
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#define ahd_be16toh(x) be16toh(x)
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#define ahd_be32toh(x) be32toh(x)
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#define ahd_be64toh(x) be64toh(x)
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#define ahd_le16toh(x) le16toh(x)
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#define ahd_le32toh(x) le32toh(x)
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#define ahd_le64toh(x) le64toh(x)
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#else
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#define ahd_htobe16(x) (x)
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#define ahd_htobe32(x) (x)
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#define ahd_htobe64(x) (x)
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#define ahd_htole16(x) (x)
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#define ahd_htole32(x) (x)
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#define ahd_htole64(x) (x)
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#define ahd_be16toh(x) (x)
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#define ahd_be32toh(x) (x)
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#define ahd_be64toh(x) (x)
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#define ahd_le16toh(x) (x)
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#define ahd_le32toh(x) (x)
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#define ahd_le64toh(x) (x)
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#endif
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/************************** Timer DataStructures ******************************/
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typedef struct callout ahd_timer_t;
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/***************************** Core Includes **********************************/
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#if 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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#include <dev/aic7xxx/aic79xx.h>
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/***************************** Timer Facilities *******************************/
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#if __FreeBSD_version >= 500000
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#define ahd_timer_init(timer) callout_init(timer, /*mpsafe*/0)
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#else
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#define ahd_timer_init callout_init
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#endif
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#define ahd_timer_stop callout_stop
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static __inline void
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ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
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{
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callout_reset(timer, (usec * hz)/1000000, func, arg);
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}
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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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ahd_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), ahd_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 *, unsigned long *flags);
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static __inline void ahd_unlock(struct ahd_softc *, unsigned long *flags);
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/* Lock held during command compeletion to the upper layer */
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static __inline void ahd_done_lockinit(struct ahd_softc *);
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static __inline void ahd_done_lock(struct ahd_softc *, unsigned long *flags);
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static __inline void ahd_done_unlock(struct ahd_softc *, unsigned long *flags);
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/* Lock held during ahd_list manipulation and ahd softc frees */
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static __inline void ahd_list_lockinit(void);
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static __inline void ahd_list_lock(unsigned long *flags);
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static __inline void ahd_list_unlock(unsigned long *flags);
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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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}
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static __inline void
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ahd_lock(struct ahd_softc *ahd, unsigned long *flags)
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{
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*flags = splcam();
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}
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static __inline void
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ahd_unlock(struct ahd_softc *ahd, unsigned long *flags)
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{
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splx(*flags);
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}
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/* Lock held during command compeletion to the upper layer */
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static __inline void
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ahd_done_lockinit(struct ahd_softc *ahd)
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{
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}
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static __inline void
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ahd_done_lock(struct ahd_softc *ahd, unsigned long *flags)
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{
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}
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static __inline void
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ahd_done_unlock(struct ahd_softc *ahd, unsigned long *flags)
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{
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}
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/* Lock held during ahd_list manipulation and ahd softc frees */
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static __inline void
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ahd_list_lockinit()
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{
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}
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static __inline void
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ahd_list_lock(unsigned long *flags)
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{
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}
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static __inline void
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ahd_list_unlock(unsigned long *flags)
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{
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}
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/****************************** OS Primitives *********************************/
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#define ahd_delay DELAY
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/************************** Transaction Operations ****************************/
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static __inline void ahd_set_transaction_status(struct scb *, uint32_t);
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static __inline void ahd_set_scsi_status(struct scb *, uint32_t);
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static __inline uint32_t ahd_get_transaction_status(struct scb *);
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static __inline uint32_t ahd_get_scsi_status(struct scb *);
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static __inline void ahd_set_transaction_tag(struct scb *, int, u_int);
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static __inline u_long ahd_get_transfer_length(struct scb *);
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static __inline int ahd_get_transfer_dir(struct scb *);
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static __inline void ahd_set_residual(struct scb *, u_long);
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static __inline void ahd_set_sense_residual(struct scb *, u_long);
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static __inline u_long ahd_get_residual(struct scb *);
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static __inline int ahd_perform_autosense(struct scb *);
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static __inline uint32_t ahd_get_sense_bufsize(struct ahd_softc*, struct scb*);
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static __inline void ahd_freeze_simq(struct ahd_softc *);
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static __inline void ahd_release_simq(struct ahd_softc *);
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static __inline void ahd_freeze_ccb(union ccb *ccb);
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static __inline void ahd_freeze_scb(struct scb *scb);
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static __inline void ahd_platform_freeze_devq(struct ahd_softc *, struct scb *);
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static __inline int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
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char channel, int lun, u_int tag,
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role_t role, uint32_t status);
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static __inline
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void ahd_set_transaction_status(struct scb *scb, uint32_t status)
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{
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scb->io_ctx->ccb_h.status &= ~CAM_STATUS_MASK;
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scb->io_ctx->ccb_h.status |= status;
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}
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static __inline
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void ahd_set_scsi_status(struct scb *scb, uint32_t status)
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{
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scb->io_ctx->csio.scsi_status = status;
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}
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static __inline
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uint32_t ahd_get_transaction_status(struct scb *scb)
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{
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return (scb->io_ctx->ccb_h.status & CAM_STATUS_MASK);
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}
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static __inline
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uint32_t ahd_get_scsi_status(struct scb *scb)
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{
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return (scb->io_ctx->csio.scsi_status);
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}
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static __inline
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void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type)
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{
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scb->io_ctx->csio.tag_action = type;
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if (enabled)
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scb->io_ctx->ccb_h.flags |= CAM_TAG_ACTION_VALID;
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else
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scb->io_ctx->ccb_h.flags &= ~CAM_TAG_ACTION_VALID;
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}
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static __inline
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u_long ahd_get_transfer_length(struct scb *scb)
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{
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return (scb->io_ctx->csio.dxfer_len);
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}
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static __inline
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int ahd_get_transfer_dir(struct scb *scb)
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{
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return (scb->io_ctx->ccb_h.flags & CAM_DIR_MASK);
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}
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static __inline
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void ahd_set_residual(struct scb *scb, u_long resid)
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{
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scb->io_ctx->csio.resid = resid;
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}
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static __inline
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void ahd_set_sense_residual(struct scb *scb, u_long resid)
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{
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scb->io_ctx->csio.sense_resid = resid;
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}
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static __inline
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u_long ahd_get_residual(struct scb *scb)
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{
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return (scb->io_ctx->csio.resid);
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}
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static __inline
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int ahd_perform_autosense(struct scb *scb)
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{
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return (!(scb->io_ctx->ccb_h.flags & CAM_DIS_AUTOSENSE));
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}
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static __inline uint32_t
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ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb)
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{
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return (sizeof(struct scsi_sense_data));
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}
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static __inline void
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ahd_freeze_simq(struct ahd_softc *ahd)
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{
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xpt_freeze_simq(ahd->platform_data->sim, /*count*/1);
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}
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static __inline void
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ahd_release_simq(struct ahd_softc *ahd)
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{
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xpt_release_simq(ahd->platform_data->sim, /*run queue*/TRUE);
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}
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static __inline void
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ahd_freeze_ccb(union ccb *ccb)
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{
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if ((ccb->ccb_h.status & CAM_DEV_QFRZN) == 0) {
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ccb->ccb_h.status |= CAM_DEV_QFRZN;
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xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
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}
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}
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static __inline void
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ahd_freeze_scb(struct scb *scb)
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{
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ahd_freeze_ccb(scb->io_ctx);
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}
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static __inline void
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ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb)
|
|
{
|
|
/* Nothing to do here for FreeBSD */
|
|
}
|
|
|
|
static __inline int
|
|
ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
|
|
char channel, int lun, u_int tag,
|
|
role_t role, uint32_t status)
|
|
{
|
|
/* Nothing to do here for FreeBSD */
|
|
return (0);
|
|
}
|
|
|
|
static __inline void
|
|
ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
|
|
{
|
|
/* What do we do to generically handle driver resource shortages??? */
|
|
if ((ahd->flags & AHD_RESOURCE_SHORTAGE) != 0
|
|
&& scb->io_ctx != NULL
|
|
&& (scb->io_ctx->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
|
|
scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ;
|
|
ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
|
|
}
|
|
scb->io_ctx = NULL;
|
|
}
|
|
|
|
/********************************** PCI ***************************************/
|
|
#ifdef AHD_PCI_CONFIG
|
|
static __inline uint32_t ahd_pci_read_config(ahd_dev_softc_t pci,
|
|
int reg, int width);
|
|
static __inline void ahd_pci_write_config(ahd_dev_softc_t pci,
|
|
int reg, uint32_t value,
|
|
int width);
|
|
static __inline int ahd_get_pci_function(ahd_dev_softc_t);
|
|
static __inline int ahd_get_pci_slot(ahd_dev_softc_t);
|
|
static __inline int ahd_get_pci_bus(ahd_dev_softc_t);
|
|
|
|
int ahd_pci_map_registers(struct ahd_softc *ahd);
|
|
int ahd_pci_map_int(struct ahd_softc *ahd);
|
|
|
|
static __inline uint32_t
|
|
ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
|
|
{
|
|
return (pci_read_config(pci, reg, width));
|
|
}
|
|
|
|
static __inline void
|
|
ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
|
|
{
|
|
pci_write_config(pci, reg, value, width);
|
|
}
|
|
|
|
static __inline int
|
|
ahd_get_pci_function(ahd_dev_softc_t pci)
|
|
{
|
|
return (pci_get_function(pci));
|
|
}
|
|
|
|
static __inline int
|
|
ahd_get_pci_slot(ahd_dev_softc_t pci)
|
|
{
|
|
return (pci_get_slot(pci));
|
|
}
|
|
|
|
static __inline int
|
|
ahd_get_pci_bus(ahd_dev_softc_t pci)
|
|
{
|
|
return (pci_get_bus(pci));
|
|
}
|
|
|
|
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,
|
|
ahd_power_state new_state);
|
|
#endif
|
|
/******************************** VL/EISA *************************************/
|
|
int aic7770_map_registers(struct ahd_softc *ahd);
|
|
int aic7770_map_int(struct ahd_softc *ahd, int irq);
|
|
|
|
/********************************* Debug **************************************/
|
|
static __inline void ahd_print_path(struct ahd_softc *, struct scb *);
|
|
static __inline void ahd_platform_dump_card_state(struct ahd_softc *ahd);
|
|
|
|
static __inline void
|
|
ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
|
|
{
|
|
xpt_print_path(scb->io_ctx->ccb_h.path);
|
|
}
|
|
|
|
static __inline void
|
|
ahd_platform_dump_card_state(struct ahd_softc *ahd)
|
|
{
|
|
/* Nothing to do here for FreeBSD */
|
|
}
|
|
/**************************** 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 *,
|
|
int /*enable*/);
|
|
|
|
/************************* Initialization/Teardown ****************************/
|
|
int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg);
|
|
void ahd_platform_free(struct ahd_softc *ahd);
|
|
int ahd_map_int(struct ahd_softc *ahd);
|
|
int ahd_attach(struct ahd_softc *);
|
|
int ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd);
|
|
int ahd_detach(device_t);
|
|
|
|
/****************************** Interrupts ************************************/
|
|
void ahd_platform_intr(void *);
|
|
static __inline void ahd_platform_flushwork(struct ahd_softc *ahd);
|
|
static __inline void
|
|
ahd_platform_flushwork(struct ahd_softc *ahd)
|
|
{
|
|
}
|
|
|
|
/************************ Misc Function Declarations **************************/
|
|
timeout_t ahd_timeout;
|
|
void ahd_done(struct ahd_softc *ahd, struct scb *scb);
|
|
void ahd_send_async(struct ahd_softc *, char /*channel*/,
|
|
u_int /*target*/, u_int /*lun*/, ac_code, void *arg);
|
|
#endif /* _AIC79XX_FREEBSD_H_ */
|