d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
1ca888b5fd
freebsd-skq/sys/i386/eisa/adv_eisa.c

355 lines
8.6 KiB
C
Raw Blame History

/*
* 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.
*
* $Id$
*/
#include "eisa.h"
#if NEISA > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <i386/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)
static int adveisaprobe(void);
static int adveisaattach(struct eisa_device *e_dev);
/*
* The overrun buffer shared amongst all EISA adapters.
*/
static u_int8_t* overrun_buf;
bus_dma_tag_t overrun_dmat;
bus_dmamap_t overrun_dmamap;
bus_addr_t overrun_physbase;
static struct eisa_driver adv_eisa_driver =
{
"adv",
adveisaprobe,
adveisaattach,
/*shutdown*/NULL,
&adv_unit
};
DATA_SET (eisadriver_set, adv_eisa_driver);
static const char *adveisamatch(eisa_id_t type);
static const char*
adveisamatch(type)
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
adveisaprobe(void)
{
u_int32_t iobase;
u_int8_t irq;
struct eisa_device *e_dev = NULL;
int count;
count = 0;
while ((e_dev = eisa_match_dev(e_dev, adveisamatch))) {
iobase = (e_dev->ioconf.slot * EISA_SLOT_SIZE)
+ ADV_EISA_SLOT_OFFSET;
eisa_add_iospace(e_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", e_dev->ioconf.slot,
irq);
continue;
}
eisa_add_intr(e_dev, irq + 10);
eisa_registerdev(e_dev, &adv_eisa_driver);
count++;
}
return count;
}
static int
adveisaattach(struct eisa_device *e_dev)
{
struct adv_softc *adv;
struct adv_softc *adv_b;
resvaddr_t *iospace;
int unit;
int irq;
int error;
adv_b = NULL;
unit = e_dev->unit;
iospace = e_dev->ioconf.ioaddrs.lh_first;
if (TAILQ_FIRST(&e_dev->ioconf.irqs) == NULL)
return (-1);
irq = TAILQ_FIRST(&e_dev->ioconf.irqs)->irq_no;
if (!iospace)
return (-1);
switch (e_dev->id & ~0xF) {
case EISA_DEVICE_ID_ADVANSYS_750:
adv_b = adv_alloc(unit, I386_BUS_SPACE_IO,
iospace->addr + ADV_EISA_OFFSET_CHAN2);
if (adv_b == NULL)
return (-1);
/*
* 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*/0,
/*boundary*/0,
/*lowaddr*/ADV_EISA_MAX_DMA_ADDR,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
/*nsegments*/BUS_SPACE_UNRESTRICTED,
/*maxsegsz*/ADV_EISA_MAX_DMA_COUNT,
/*flags*/0,
&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);
return (-1);
}
adv_b->init_level++;
/* FALLTHROUGH */
case EISA_DEVICE_ID_ADVANSYS_740:
adv = adv_alloc(unit, I386_BUS_SPACE_IO,
iospace->addr + ADV_EISA_OFFSET_CHAN1);
if (adv == NULL) {
if (adv_b != NULL)
adv_free(adv_b);
return (-1);
}
/*
* 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*/0,
/*boundary*/0,
/*lowaddr*/ADV_EISA_MAX_DMA_ADDR,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
/*nsegments*/BUS_SPACE_UNRESTRICTED,
/*maxsegsz*/ADV_EISA_MAX_DMA_COUNT,
/*flags*/0,
&adv->parent_dmat);
if (error != 0) {
printf("%s: Could not allocate DMA tag - error %d\n",
adv_name(adv), error);
adv_free(adv);
return (-1);
}
adv->init_level++;
break;
default:
printf("adveisaattach: Unknown device type!\n");
return (-1);
break;
}
if (overrun_buf == NULL) {
/* Need to allocate our overrun buffer */
if (bus_dma_tag_create(adv->parent_dmat,
/*alignment*/8,
/*boundary*/0,
ADV_EISA_MAX_DMA_ADDR,
BUS_SPACE_MAXADDR,
/*filter*/NULL,
/*filterarg*/NULL,
ADV_OVERRUN_BSIZE,
/*nsegments*/1,
BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0,
&overrun_dmat) != 0) {
adv_free(adv);
return (-1);
}
if (bus_dmamem_alloc(overrun_dmat,
(void **)&overrun_buf,
BUS_DMA_NOWAIT,
&overrun_dmamap) != 0) {
bus_dma_tag_destroy(overrun_dmat);
adv_free(adv);
return (-1);
}
/* And permanently map it in */
bus_dmamap_load(overrun_dmat, overrun_dmamap,
overrun_buf, ADV_OVERRUN_BSIZE,
adv_map, &overrun_physbase,
/*flags*/0);
}
eisa_reg_start(e_dev);
if (eisa_reg_iospace(e_dev, iospace)) {
adv_free(adv);
if (adv_b != NULL)
adv_free(adv_b);
return (-1);
}
if (eisa_reg_intr(e_dev, irq, adv_intr, (void *)adv, &cam_imask,
/*shared ==*/TRUE)) {
adv_free(adv);
if (adv_b != NULL)
adv_free(adv_b);
return (-1);
}
eisa_reg_end(e_dev);
/*
* 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(e_dev->id)
+ 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(e_dev->id)
+ 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.
*/
if (eisa_enable_intr(e_dev, irq)) {
adv_free(adv);
if (adv_b != NULL)
adv_free(adv_b);
eisa_release_intr(e_dev, irq, adv_intr);
return (-1);
}
/* Attach sub-devices - always succeeds */
adv_attach(adv);
if (adv_b != NULL)
adv_attach(adv_b);
return 0;
}
#endif /* NEISA > 0 */
Reference in New Issue View Git Blame Copy Permalink