aa6dfd9d3d
other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
477 lines
11 KiB
C
477 lines
11 KiB
C
/*
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* Product specific probe and attach routines for:
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* 27/284X and aic7770 motherboard SCSI controllers
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*
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* Copyright (c) 1994, 1995, 1996, 1997, 1998 Justin T. Gibbs.
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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 immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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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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* 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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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <dev/eisa/eisaconf.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_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 <dev/aic7xxx/aic7xxx.h>
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#include <dev/aic7xxx/93cx6.h>
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#include <aic7xxx_reg.h>
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#define EISA_DEVICE_ID_ADAPTEC_AIC7770 0x04907770
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#define EISA_DEVICE_ID_ADAPTEC_274x 0x04907771
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#define EISA_DEVICE_ID_ADAPTEC_284xB 0x04907756 /* BIOS enabled */
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#define EISA_DEVICE_ID_ADAPTEC_284x 0x04907757 /* BIOS disabled*/
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#define AHC_EISA_SLOT_OFFSET 0xc00
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#define AHC_EISA_IOSIZE 0x100
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#define INTDEF 0x5cul /* Interrupt Definition Register */
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static void aha2840_load_seeprom(struct ahc_softc *ahc);
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static const char *aic7770_match(eisa_id_t type);
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static const char*
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aic7770_match(eisa_id_t type)
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{
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switch (type) {
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case EISA_DEVICE_ID_ADAPTEC_AIC7770:
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return ("Adaptec aic7770 SCSI host adapter");
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break;
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case EISA_DEVICE_ID_ADAPTEC_274x:
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return ("Adaptec 274X SCSI host adapter");
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break;
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case EISA_DEVICE_ID_ADAPTEC_284xB:
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case EISA_DEVICE_ID_ADAPTEC_284x:
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return ("Adaptec 284X SCSI host adapter");
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break;
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default:
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break;
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}
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return (NULL);
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}
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static int
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aic7770_probe(device_t dev)
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{
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const char *desc;
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uint32_t iobase;
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uint32_t irq;
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uint8_t intdef;
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uint8_t hcntrl;
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int shared;
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desc = aic7770_match(eisa_get_id(dev));
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if (!desc)
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return (ENXIO);
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device_set_desc(dev, desc);
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iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + AHC_EISA_SLOT_OFFSET;
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/* Pause the card preseving the IRQ type */
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hcntrl = inb(iobase + HCNTRL) & IRQMS;
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outb(iobase + HCNTRL, hcntrl | PAUSE);
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eisa_add_iospace(dev, iobase, AHC_EISA_IOSIZE, RESVADDR_NONE);
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intdef = inb(INTDEF + iobase);
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shared = (intdef & 0x80) ? EISA_TRIGGER_EDGE : EISA_TRIGGER_LEVEL;
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irq = intdef & 0xf;
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switch (irq) {
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case 9:
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case 10:
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case 11:
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case 12:
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case 14:
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case 15:
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break;
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default:
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printf("aic7770 at slot %d: illegal "
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"irq setting %d\n", eisa_get_slot(dev),
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intdef);
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irq = 0;
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break;
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}
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if (irq == 0)
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return ENXIO;
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eisa_add_intr(dev, irq, shared);
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return 0;
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}
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static int
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aic7770_attach(device_t dev)
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{
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struct ahc_probe_config probe_config;
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bus_dma_tag_t parent_dmat;
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struct ahc_softc *ahc;
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struct resource *io;
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int error, rid;
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rid = 0;
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io = NULL;
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ahc = NULL;
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ahc_init_probe_config(&probe_config);
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switch (eisa_get_id(dev)) {
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case EISA_DEVICE_ID_ADAPTEC_274x:
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case EISA_DEVICE_ID_ADAPTEC_AIC7770:
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probe_config.chip = AHC_AIC7770|AHC_EISA;
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break;
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case EISA_DEVICE_ID_ADAPTEC_284xB:
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case EISA_DEVICE_ID_ADAPTEC_284x:
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probe_config.chip = AHC_AIC7770|AHC_VL;
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break;
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default:
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printf("aic7770_attach: Unknown device type!\n");
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goto bad;
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}
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probe_config.description = aic7770_match(eisa_get_id(dev));
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probe_config.channel = 'A';
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probe_config.channel_b = 'B';
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probe_config.features = AHC_AIC7770_FE;
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probe_config.bugs |= AHC_TMODE_WIDEODD_BUG;
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probe_config.flags |= AHC_PAGESCBS;
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/* XXX Should be a child of the EISA bus dma tag */
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error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
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/*boundary*/0,
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/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
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/*highaddr*/BUS_SPACE_MAXADDR,
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/*filter*/NULL, /*filterarg*/NULL,
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/*maxsize*/MAXBSIZE,
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/*nsegments*/AHC_NSEG,
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/*maxsegsz*/AHC_MAXTRANSFER_SIZE,
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/*flags*/BUS_DMA_ALLOCNOW, &parent_dmat);
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if (error != 0) {
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printf("ahc_eisa_attach: Could not allocate DMA tag "
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"- error %d\n", error);
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goto bad;
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}
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io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
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0, ~0, 1, RF_ACTIVE);
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if (!io) {
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device_printf(dev, "No I/O space?!\n");
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return ENOMEM;
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}
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if (!(ahc = ahc_alloc(dev, io, SYS_RES_IOPORT, rid,
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parent_dmat, &probe_config, NULL)))
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goto bad;
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io = NULL;
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if (ahc_reset(ahc) != 0) {
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goto bad;
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}
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/*
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* The IRQMS bit enables level sensitive interrupts. Only allow
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* IRQ sharing if it's set.
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*/
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rid = 0;
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ahc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
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0, ~0, 1, RF_ACTIVE);
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if (ahc->irq == NULL) {
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device_printf(dev, "Can't allocate interrupt\n");
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goto bad;
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}
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ahc->irq_res_type = SYS_RES_IRQ;
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/*
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* Tell the user what type of interrupts we're using.
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* usefull for debugging irq problems
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*/
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if (bootverbose) {
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printf("%s: Using %s Interrupts\n",
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ahc_name(ahc),
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ahc->pause & IRQMS ?
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"Level Sensitive" : "Edge Triggered");
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}
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/*
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* Now that we know we own the resources we need, do the
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* card initialization.
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*
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* First, the aic7770 card specific setup.
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*/
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switch (probe_config.chip & (AHC_EISA|AHC_VL)) {
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case AHC_EISA:
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{
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u_int biosctrl;
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u_int scsiconf;
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u_int scsiconf1;
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#if DEBUG
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int i;
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#endif
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biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
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scsiconf = ahc_inb(ahc, SCSICONF);
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scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
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#if DEBUG
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for (i = TARG_SCSIRATE; i <= HA_274_BIOSCTRL; i+=8) {
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printf("0x%x, 0x%x, 0x%x, 0x%x, "
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"0x%x, 0x%x, 0x%x, 0x%x\n",
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ahc_inb(ahc, i),
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ahc_inb(ahc, i+1),
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ahc_inb(ahc, i+2),
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ahc_inb(ahc, i+3),
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ahc_inb(ahc, i+4),
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ahc_inb(ahc, i+5),
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ahc_inb(ahc, i+6),
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ahc_inb(ahc, i+7));
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}
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#endif
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/* Get the primary channel information */
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if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
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ahc->flags |= AHC_CHANNEL_B_PRIMARY;
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if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
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ahc->flags |= AHC_USEDEFAULTS;
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} else {
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if ((ahc->features & AHC_WIDE) != 0) {
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ahc->our_id = scsiconf1 & HWSCSIID;
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if (scsiconf & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_A;
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} else {
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ahc->our_id = scsiconf & HSCSIID;
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ahc->our_id_b = scsiconf1 & HSCSIID;
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if (scsiconf & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_A;
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if (scsiconf1 & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_B;
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}
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}
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/*
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* We have no way to tell, so assume extended
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* translation is enabled.
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*/
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ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
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break;
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}
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case AHC_VL:
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{
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aha2840_load_seeprom(ahc);
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break;
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}
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default:
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break;
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}
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/*
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* See if we have a Rev E or higher aic7770. Anything below a
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* Rev E will have a R/O autoflush disable configuration bit.
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*/
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{
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char *id_string;
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uint8_t sblkctl;
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uint8_t sblkctl_orig;
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sblkctl_orig = ahc_inb(ahc, SBLKCTL);
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sblkctl = sblkctl_orig ^ AUTOFLUSHDIS;
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ahc_outb(ahc, SBLKCTL, sblkctl);
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sblkctl = ahc_inb(ahc, SBLKCTL);
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if (sblkctl != sblkctl_orig) {
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id_string = "aic7770 >= Rev E, ";
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/*
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* Ensure autoflush is enabled
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*/
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sblkctl &= ~AUTOFLUSHDIS;
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ahc_outb(ahc, SBLKCTL, sblkctl);
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} else
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id_string = "aic7770 <= Rev C, ";
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printf("%s: %s", ahc_name(ahc), id_string);
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}
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/* Setup the FIFO threshold and the bus off time */
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{
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uint8_t hostconf = ahc_inb(ahc, HOSTCONF);
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ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
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ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
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}
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/*
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* Generic aic7xxx initialization.
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*/
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if (ahc_init(ahc)) {
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/*
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* The board's IRQ line is not yet enabled so it's safe
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* to release the irq.
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*/
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goto bad;
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}
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/*
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* Enable the board's BUS drivers
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*/
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ahc_outb(ahc, BCTL, ENABLE);
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/* Attach sub-devices - always succeeds */
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ahc_attach(ahc);
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return 0;
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bad:
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if (ahc != NULL)
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ahc_free(ahc);
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if (io != NULL)
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bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
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return -1;
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}
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/*
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* Read the 284x SEEPROM.
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*/
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static void
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aha2840_load_seeprom(struct ahc_softc *ahc)
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{
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struct seeprom_descriptor sd;
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struct seeprom_config sc;
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uint16_t checksum = 0;
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uint8_t scsi_conf;
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int have_seeprom;
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sd.sd_tag = ahc->tag;
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sd.sd_bsh = ahc->bsh;
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sd.sd_control_offset = SEECTL_2840;
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sd.sd_status_offset = STATUS_2840;
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sd.sd_dataout_offset = STATUS_2840;
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sd.sd_chip = C46;
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sd.sd_MS = 0;
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sd.sd_RDY = EEPROM_TF;
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sd.sd_CS = CS_2840;
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sd.sd_CK = CK_2840;
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sd.sd_DO = DO_2840;
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sd.sd_DI = DI_2840;
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if (bootverbose)
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printf("%s: Reading SEEPROM...", ahc_name(ahc));
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have_seeprom = read_seeprom(&sd,
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(uint16_t *)&sc,
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/*start_addr*/0,
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sizeof(sc)/2);
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if (have_seeprom) {
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/* Check checksum */
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int i;
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int maxaddr = (sizeof(sc)/2) - 1;
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uint16_t *scarray = (uint16_t *)≻
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for (i = 0; i < maxaddr; i++)
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checksum = checksum + scarray[i];
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if (checksum != sc.checksum) {
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if(bootverbose)
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printf ("checksum error\n");
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have_seeprom = 0;
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} else if (bootverbose) {
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printf("done.\n");
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}
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}
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if (!have_seeprom) {
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if (bootverbose)
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printf("%s: No SEEPROM available\n", ahc_name(ahc));
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ahc->flags |= AHC_USEDEFAULTS;
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} else {
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/*
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* Put the data we've collected down into SRAM
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* where ahc_init will find it.
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*/
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int i;
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int max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
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uint16_t discenable;
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discenable = 0;
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for (i = 0; i < max_targ; i++){
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uint8_t target_settings;
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target_settings = (sc.device_flags[i] & CFXFER) << 4;
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if (sc.device_flags[i] & CFSYNCH)
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target_settings |= SOFS;
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if (sc.device_flags[i] & CFWIDEB)
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target_settings |= WIDEXFER;
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if (sc.device_flags[i] & CFDISC)
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discenable |= (0x01 << i);
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ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
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}
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ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
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ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
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ahc->our_id = sc.brtime_id & CFSCSIID;
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scsi_conf = (ahc->our_id & 0x7);
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if (sc.adapter_control & CFSPARITY)
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scsi_conf |= ENSPCHK;
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if (sc.adapter_control & CFRESETB)
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scsi_conf |= RESET_SCSI;
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if (sc.bios_control & CF284XEXTEND)
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ahc->flags |= AHC_EXTENDED_TRANS_A;
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/* Set SCSICONF info */
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ahc_outb(ahc, SCSICONF, scsi_conf);
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if (sc.adapter_control & CF284XSTERM)
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ahc->flags |= AHC_TERM_ENB_A;
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}
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}
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static device_method_t ahc_eisa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, aic7770_probe),
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DEVMETHOD(device_attach, aic7770_attach),
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|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t ahc_eisa_driver = {
|
|
"ahc",
|
|
ahc_eisa_methods,
|
|
1, /* unused */
|
|
};
|
|
|
|
static devclass_t ahc_devclass;
|
|
|
|
DRIVER_MODULE(ahc, eisa, ahc_eisa_driver, ahc_devclass, 0, 0);
|