FreeBSD-5.3/sys/dev/advansys/adv_isa.c
/*
* Device probe and attach routines for the following
* Advanced Systems Inc. SCSI controllers:
*
* Connectivity Products:
* ABP510/5150 - Bus-Master ISA (240 CDB) *
* ABP5140 - Bus-Master ISA PnP (16 CDB) * **
* ABP5142 - Bus-Master ISA PnP with floppy (16 CDB) ***
*
* Single Channel Products:
* ABP542 - Bus-Master ISA with floppy (240 CDB)
* ABP842 - Bus-Master VL (240 CDB)
*
* Dual Channel Products:
* ABP852 - Dual Channel Bus-Master VL (240 CDB Per Channel)
*
* * This board has been shipped by HP with the 4020i CD-R drive.
* The board has no BIOS so it cannot control a boot device, but
* it can control any secondary SCSI device.
* ** This board has been sold by SIIG as the i540 SpeedMaster.
* *** This board has been sold by SIIG as the i542 SpeedMaster.
*
* Copyright (c) 1996, 1997 Justin T. 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_isa.c,v 1.26 2004/05/30 20:08:24 phk 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 <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#include <dev/advansys/advansys.h>
#include <cam/scsi/scsi_all.h>
#define ADV_ISA_MAX_DMA_ADDR (0x00FFFFFFL)
#define ADV_ISA_MAX_DMA_COUNT (0x00FFFFFFL)
#define ADV_VL_MAX_DMA_ADDR (0x07FFFFFFL)
#define ADV_VL_MAX_DMA_COUNT (0x07FFFFFFL)
/*
* The overrun buffer shared amongst all ISA/VL 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;
/* Possible port addresses an ISA or VL adapter can live at */
static u_int16_t adv_isa_ioports[] =
{
0x100,
0x110, /* First selection in BIOS setup */
0x120,
0x130, /* Second selection in BIOS setup */
0x140,
0x150, /* Third selection in BIOS setup */
0x190, /* Fourth selection in BIOS setup */
0x210, /* Fifth selection in BIOS setup */
0x230, /* Sixth selection in BIOS setup */
0x250, /* Seventh selection in BIOS setup */
0x330 /* Eighth and default selection in BIOS setup */
};
#define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1)
static int adv_isa_probe(device_t dev);
static int adv_isa_attach(device_t dev);
static void adv_set_isapnp_wait_for_key(void);
static int adv_get_isa_dma_channel(struct adv_softc *adv);
static int adv_set_isa_dma_settings(struct adv_softc *adv);
static int
adv_isa_probe(device_t dev)
{
int port_index;
int max_port_index;
u_long iobase, iocount, irq;
int user_iobase = 0;
int rid = 0;
void *ih;
struct resource *iores, *irqres;
/*
* Default to scanning all possible device locations.
*/
port_index = 0;
max_port_index = MAX_ISA_IOPORT_INDEX;
if (bus_get_resource(dev, SYS_RES_IOPORT, 0, &iobase, &iocount) == 0) {
user_iobase = 1;
for (;port_index <= max_port_index; port_index++)
if (iobase <= adv_isa_ioports[port_index])
break;
if ((port_index > max_port_index)
|| (iobase != adv_isa_ioports[port_index])) {
if (bootverbose)
printf("adv%d: Invalid baseport of 0x%lx specified. "
"Nearest valid baseport is 0x%x. Failing "
"probe.\n", device_get_unit(dev), iobase,
(port_index <= max_port_index) ?
adv_isa_ioports[port_index] :
adv_isa_ioports[max_port_index]);
return ENXIO;
}
max_port_index = port_index;
}
/* Perform the actual probing */
adv_set_isapnp_wait_for_key();
for (;port_index <= max_port_index; port_index++) {
u_int16_t port_addr = adv_isa_ioports[port_index];
bus_size_t maxsegsz;
bus_size_t maxsize;
bus_addr_t lowaddr;
int error;
struct adv_softc *adv;
if (port_addr == 0)
/* Already been attached */
continue;
if (bus_set_resource(dev, SYS_RES_IOPORT, 0, port_addr, 1))
continue;
/* XXX what is the real portsize? */
iores = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
RF_ACTIVE);
if (iores == NULL)
continue;
if (adv_find_signature(rman_get_bustag(iores),
rman_get_bushandle(iores)) == 0) {
bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
continue;
}
/*
* Got one. Now allocate our softc
* and see if we can initialize the card.
*/
adv = adv_alloc(dev, rman_get_bustag(iores),
rman_get_bushandle(iores));
if (adv == NULL) {
bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
break;
}
/*
* Stop the chip.
*/
ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
/*
* Determine the chip version.
*/
adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
&& (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
adv->type = ADV_VL;
maxsegsz = ADV_VL_MAX_DMA_COUNT;
maxsize = BUS_SPACE_MAXSIZE_32BIT;
lowaddr = ADV_VL_MAX_DMA_ADDR;
bus_delete_resource(dev, SYS_RES_DRQ, 0);
} else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
&& (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
adv->type = ADV_ISAPNP;
ADV_OUTB(adv, ADV_REG_IFC,
ADV_IFC_INIT_DEFAULT);
} else {
adv->type = ADV_ISA;
}
maxsegsz = ADV_ISA_MAX_DMA_COUNT;
maxsize = BUS_SPACE_MAXSIZE_24BIT;
lowaddr = ADV_ISA_MAX_DMA_ADDR;
adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
adv->isa_dma_channel = adv_get_isa_dma_channel(adv);
bus_set_resource(dev, SYS_RES_DRQ, 0,
adv->isa_dma_channel, 1);
} else {
panic("advisaprobe: Unknown card revision\n");
}
/*
* Allocate a parent dmatag for all tags created
* by the MI portions of the advansys driver
*/
/* XXX Should be a child of the ISA bus dma tag */
error = bus_dma_tag_create(
/* parent */ NULL,
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ lowaddr,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ maxsize,
/* nsegments */ ~0,
/* maxsegsz */ maxsegsz,
/* 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);
bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
break;
}
adv->init_level += 2;
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_ISA_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 */ NULL,
/* lockarg */ NULL,
&overrun_dmat) != 0) {
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, 0,
iores);
break;
}
if (bus_dmamem_alloc(overrun_dmat,
(void **)&overrun_buf,
BUS_DMA_NOWAIT,
&overrun_dmamap) != 0) {
bus_dma_tag_destroy(overrun_dmat);
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, 0,
iores);
break;
}
/* And permanently map it in */
bus_dmamap_load(overrun_dmat, overrun_dmamap,
overrun_buf, ADV_OVERRUN_BSIZE,
adv_map, &overrun_physbase,
/*flags*/0);
}
adv->overrun_physbase = overrun_physbase;
if (adv_init(adv) != 0) {
bus_dmamap_unload(overrun_dmat, overrun_dmamap);
bus_dmamem_free(overrun_dmat, overrun_buf,
overrun_dmamap);
bus_dma_tag_destroy(overrun_dmat);
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
break;
}
switch (adv->type) {
case ADV_ISAPNP:
if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG) {
adv->bug_fix_control
|= ADV_BUG_FIX_ASYN_USE_SYN;
adv->fix_asyn_xfer = ~0;
}
/* Fall Through */
case ADV_ISA:
adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
adv_set_isa_dma_settings(adv);
break;
case ADV_VL:
adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
break;
default:
panic("advisaprobe: Invalid card type\n");
}
/* Determine our IRQ */
if (bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, NULL))
bus_set_resource(dev, SYS_RES_IRQ, 0,
adv_get_chip_irq(adv), 1);
else
adv_set_chip_irq(adv, irq);
irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_ACTIVE);
if (irqres == NULL ||
bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY,
adv_intr, adv, &ih)) {
bus_dmamap_unload(overrun_dmat, overrun_dmamap);
bus_dmamem_free(overrun_dmat, overrun_buf,
overrun_dmamap);
bus_dma_tag_destroy(overrun_dmat);
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
break;
}
/* Mark as probed */
adv_isa_ioports[port_index] = 0;
return 0;
}
if (user_iobase)
bus_set_resource(dev, SYS_RES_IOPORT, 0, iobase, iocount);
else
bus_delete_resource(dev, SYS_RES_IOPORT, 0);
return ENXIO;
}
static int
adv_isa_attach(device_t dev)
{
struct adv_softc *adv = device_get_softc(dev);
return (adv_attach(adv));
}
static int
adv_get_isa_dma_channel(struct adv_softc *adv)
{
int channel;
channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
if (channel == 0x03)
return (0);
else if (channel == 0x00)
return (7);
return (channel + 4);
}
static int
adv_set_isa_dma_settings(struct adv_softc *adv)
{
u_int16_t cfg_lsw;
u_int8_t value;
if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
if (adv->isa_dma_channel == 7)
value = 0x00;
else
value = adv->isa_dma_channel - 4;
cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
& ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
cfg_lsw |= value;
ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
adv->isa_dma_speed &= 0x07;
adv_set_bank(adv, 1);
ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
adv_set_bank(adv, 0);
isa_dmacascade(adv->isa_dma_channel);
}
return (0);
}
static void
adv_set_isapnp_wait_for_key(void)
{
static int isapnp_wait_set = 0;
if (isapnp_wait_set == 0) {
outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
isapnp_wait_set++;
}
}
static device_method_t adv_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, adv_isa_probe),
DEVMETHOD(device_attach, adv_isa_attach),
{ 0, 0 }
};
static driver_t adv_isa_driver = {
"adv", adv_isa_methods, sizeof(struct adv_softc)
};
static devclass_t adv_isa_devclass;
DRIVER_MODULE(adv, isa, adv_isa_driver, adv_isa_devclass, 0, 0);