FreeBSD-5.3/sys/dev/advansys/adv_eisa.c
/*
* Device probe and attach routines for the following
* Advanced Systems Inc. SCSI controllers:
*
* Single Channel Products:
* ABP742 - Bus-Master EISA (240 CDB)
*
* Dual Channel Products:
* ABP752 - Dual Channel Bus-Master EISA (240 CDB Per Channel)
*
* Copyright (c) 1997 Justin Gibbs.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/advansys/adv_eisa.c,v 1.16 2004/03/17 17:50:24 njl Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/bus.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/eisa/eisaconf.h>
#include <dev/advansys/advansys.h>
#define EISA_DEVICE_ID_ADVANSYS_740 0x04507400
#define EISA_DEVICE_ID_ADVANSYS_750 0x04507500
#define ADV_EISA_SLOT_OFFSET 0xc00
#define ADV_EISA_OFFSET_CHAN1 0x30
#define ADV_EISA_OFFSET_CHAN2 0x50
#define ADV_EISA_IOSIZE 0x100
#define ADV_EISA_ROM_BIOS_ADDR_REG 0x86
#define ADV_EISA_IRQ_BURST_LEN_REG 0x87
#define ADV_EISA_IRQ_MASK 0x07
#define ADV_EISA_IRQ_10 0x00
#define ADV_EISA_IRQ_11 0x01
#define ADV_EISA_IRQ_12 0x02
#define ADV_EISA_IRQ_14 0x04
#define ADV_EISA_IRQ_15 0x05
#define ADV_EISA_MAX_DMA_ADDR (0x07FFFFFFL)
#define ADV_EISA_MAX_DMA_COUNT (0x07FFFFFFL)
/*
* The overrun buffer shared amongst all EISA adapters.
*/
static u_int8_t* overrun_buf;
static bus_dma_tag_t overrun_dmat;
static bus_dmamap_t overrun_dmamap;
static bus_addr_t overrun_physbase;
static const char*
adv_eisa_match(eisa_id_t type)
{
switch (type & ~0xF) {
case EISA_DEVICE_ID_ADVANSYS_740:
return ("AdvanSys ABP-740/742 SCSI adapter");
break;
case EISA_DEVICE_ID_ADVANSYS_750:
return ("AdvanSys ABP-750/752 SCSI adapter");
break;
default:
break;
}
return (NULL);
}
static int
adv_eisa_probe(device_t dev)
{
const char *desc;
u_int32_t iobase;
u_int8_t irq;
desc = adv_eisa_match(eisa_get_id(dev));
if (!desc)
return (ENXIO);
device_set_desc(dev, desc);
iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + ADV_EISA_SLOT_OFFSET;
eisa_add_iospace(dev, iobase, ADV_EISA_IOSIZE, RESVADDR_NONE);
irq = inb(iobase + ADV_EISA_IRQ_BURST_LEN_REG);
irq &= ADV_EISA_IRQ_MASK;
switch (irq) {
case 0:
case 1:
case 2:
case 4:
case 5:
break;
default:
printf("adv at slot %d: illegal "
"irq setting %d\n", eisa_get_slot(dev),
irq);
return ENXIO;
}
eisa_add_intr(dev, irq + 10, EISA_TRIGGER_LEVEL);
return 0;
}
static int
adv_eisa_attach(device_t dev)
{
struct adv_softc *adv;
struct adv_softc *adv_b;
struct resource *io;
struct resource *irq;
int rid, error;
void *ih;
adv_b = NULL;
rid = 0;
io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
if (!io) {
device_printf(dev, "No I/O space?!\n");
return ENOMEM;
}
rid = 0;
irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (!irq) {
device_printf(dev, "No irq?!\n");
bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
return ENOMEM;
}
switch (eisa_get_id(dev) & ~0xF) {
case EISA_DEVICE_ID_ADVANSYS_750:
adv_b = adv_alloc(dev, rman_get_bustag(io),
rman_get_bushandle(io) + ADV_EISA_OFFSET_CHAN2);
if (adv_b == NULL)
goto bad;
/*
* Allocate a parent dmatag for all tags created
* by the MI portions of the advansys driver
*/
/* XXX Should be a child of the PCI bus dma tag */
error = bus_dma_tag_create(
/* parent */ NULL,
/* alignment */ 1,
/* boundary */ 0,
/* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ ADV_EISA_MAX_DMA_COUNT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg */ &Giant,
&adv_b->parent_dmat);
if (error != 0) {
printf("%s: Could not allocate DMA tag - error %d\n",
adv_name(adv_b), error);
adv_free(adv_b);
goto bad;
}
adv_b->init_level++;
/* FALLTHROUGH */
case EISA_DEVICE_ID_ADVANSYS_740:
adv = adv_alloc(dev, rman_get_bustag(io),
rman_get_bushandle(io) + ADV_EISA_OFFSET_CHAN1);
if (adv == NULL) {
if (adv_b != NULL)
adv_free(adv_b);
goto bad;
}
/*
* Allocate a parent dmatag for all tags created
* by the MI portions of the advansys driver
*/
/* XXX Should be a child of the PCI bus dma tag */
error = bus_dma_tag_create(
/* parent */ NULL,
/* alignment */ 1,
/* boundary */ 0,
/* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ ADV_EISA_MAX_DMA_COUNT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg */ &Giant,
&adv->parent_dmat);
if (error != 0) {
printf("%s: Could not allocate DMA tag - error %d\n",
adv_name(adv), error);
adv_free(adv);
goto bad;
}
adv->init_level++;
break;
default:
printf("adveisaattach: Unknown device type!\n");
goto bad;
break;
}
if (overrun_buf == NULL) {
/* Need to allocate our overrun buffer */
if (bus_dma_tag_create(
/* parent */ adv->parent_dmat,
/* alignment */ 8,
/* boundary */ 0,
/* lowaddr */ ADV_EISA_MAX_DMA_ADDR,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ ADV_OVERRUN_BSIZE,
/* nsegments */ 1,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg */ &Giant,
&overrun_dmat) != 0) {
adv_free(adv);
goto bad;
}
if (bus_dmamem_alloc(overrun_dmat,
(void **)&overrun_buf,
BUS_DMA_NOWAIT,
&overrun_dmamap) != 0) {
bus_dma_tag_destroy(overrun_dmat);
adv_free(adv);
goto bad;
}
/* And permanently map it in */
bus_dmamap_load(overrun_dmat, overrun_dmamap,
overrun_buf, ADV_OVERRUN_BSIZE,
adv_map, &overrun_physbase,
/*flags*/0);
}
/*
* Now that we know we own the resources we need, do the
* card initialization.
*/
/*
* Stop the chip.
*/
ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
adv->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
+ ADV_CHIP_MIN_VER_EISA - 1;
if (adv_init(adv) != 0) {
adv_free(adv);
if (adv_b != NULL)
adv_free(adv_b);
return(-1);
}
adv->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
adv->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
if (adv_b != NULL) {
/*
* Stop the chip.
*/
ADV_OUTB(adv_b, ADV_CHIP_CTRL, ADV_CC_HALT);
ADV_OUTW(adv_b, ADV_CHIP_STATUS, 0);
adv_b->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
+ ADV_CHIP_MIN_VER_EISA - 1;
if (adv_init(adv_b) != 0) {
adv_free(adv_b);
} else {
adv_b->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
adv_b->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
}
}
/*
* Enable our interrupt handler.
*/
bus_setup_intr(dev, irq, INTR_TYPE_CAM|INTR_ENTROPY, adv_intr, adv, &ih);
/* Attach sub-devices - always succeeds */
adv_attach(adv);
if (adv_b != NULL)
adv_attach(adv_b);
return 0;
bad:
bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
return -1;
}
static device_method_t adv_eisa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, adv_eisa_probe),
DEVMETHOD(device_attach, adv_eisa_attach),
{ 0, 0 }
};
static driver_t adv_eisa_driver = {
"adv", adv_eisa_methods, sizeof(struct adv_softc)
};
static devclass_t adv_eisa_devclass;
DRIVER_MODULE(adv, eisa, adv_eisa_driver, adv_eisa_devclass, 0, 0);