FreeBSD-5.3/sys/dev/ida/ida_eisa.c
/*
* Copyright (c) 2000 Jonathan Lemon
* Copyright (c) 1999 by Matthew N. Dodd <winter@jurai.net>
* 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/ida/ida_eisa.c,v 1.16 2004/05/30 20:08:34 phk Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/bio.h>
#include <sys/conf.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <geom/geom_disk.h>
#include <dev/ida/idavar.h>
#include <dev/ida/idareg.h>
#include <dev/eisa/eisaconf.h>
#define IDA_EISA_IOPORT_START 0x0c88
#define IDA_EISA_IOPORT_LEN 0x0017
#define IDA_EISA_IRQ_REG 0x0cc0
#define IDA_EISA_IRQ_MASK 0xf0
#define IDA_EISA_IRQ_15 0x80
#define IDA_EISA_IRQ_14 0x40
#define IDA_EISA_IRQ_11 0x10
#define IDA_EISA_IRQ_10 0x20
static int
ida_v1_fifo_full(struct ida_softc *ida)
{
u_int8_t status;
status = ida_inb(ida, R_EISA_SYSTEM_DOORBELL);
return ((status & EISA_CHANNEL_CLEAR) == 0);
}
static void
ida_v1_submit(struct ida_softc *ida, struct ida_qcb *qcb)
{
u_int16_t size;
/*
* On these cards, this location is actually for control flags.
* Set them to zero and pass in structure size via an I/O port.
*/
size = qcb->hwqcb->hdr.size << 2;
qcb->hwqcb->hdr.size = 0;
ida_outb(ida, R_EISA_SYSTEM_DOORBELL, EISA_CHANNEL_CLEAR);
ida_outl(ida, R_EISA_LIST_ADDR, qcb->hwqcb_busaddr);
ida_outw(ida, R_EISA_LIST_LEN, size);
ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_BUSY);
}
static bus_addr_t
ida_v1_done(struct ida_softc *ida)
{
struct ida_hardware_qcb *hwqcb;
bus_addr_t completed;
u_int8_t status;
if ((ida_inb(ida, R_EISA_SYSTEM_DOORBELL) & EISA_CHANNEL_BUSY) == 0)
return (0);
ida_outb(ida, R_EISA_SYSTEM_DOORBELL, EISA_CHANNEL_BUSY);
completed = ida_inl(ida, R_EISA_COMPLETE_ADDR);
status = ida_inb(ida, R_EISA_LIST_STATUS);
ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_CLEAR);
if (completed != 0) {
hwqcb = (struct ida_hardware_qcb *)
((bus_addr_t)ida->hwqcbs +
((completed & ~3) - ida->hwqcb_busaddr));
hwqcb->req.error = status;
}
return (completed);
}
static int
ida_v1_int_pending(struct ida_softc *ida)
{
return (ida_inb(ida, R_EISA_SYSTEM_DOORBELL) & EISA_CHANNEL_BUSY);
}
static void
ida_v1_int_enable(struct ida_softc *ida, int enable)
{
if (enable) {
ida_outb(ida, R_EISA_SYSTEM_DOORBELL, ~EISA_CHANNEL_CLEAR);
ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_BUSY);
ida_outb(ida, R_EISA_INT_MASK, INT_ENABLE);
ida_outb(ida, R_EISA_SYSTEM_MASK, INT_ENABLE);
ida->flags |= IDA_INTERRUPTS;
} else {
ida_outb(ida, R_EISA_SYSTEM_MASK, INT_DISABLE);
ida->flags &= ~IDA_INTERRUPTS;
}
}
static int
ida_v2_fifo_full(struct ida_softc *ida)
{
return (ida_inl(ida, R_CMD_FIFO) == 0);
}
static void
ida_v2_submit(struct ida_softc *ida, struct ida_qcb *qcb)
{
ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
}
static bus_addr_t
ida_v2_done(struct ida_softc *ida)
{
return (ida_inl(ida, R_DONE_FIFO));
}
static int
ida_v2_int_pending(struct ida_softc *ida)
{
return (ida_inl(ida, R_INT_PENDING));
}
static void
ida_v2_int_enable(struct ida_softc *ida, int enable)
{
if (enable)
ida->flags |= IDA_INTERRUPTS;
else
ida->flags &= ~IDA_INTERRUPTS;
ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
}
static struct ida_access ida_v1_access = {
ida_v1_fifo_full,
ida_v1_submit,
ida_v1_done,
ida_v1_int_pending,
ida_v1_int_enable,
};
static struct ida_access ida_v2_access = {
ida_v2_fifo_full,
ida_v2_submit,
ida_v2_done,
ida_v2_int_pending,
ida_v2_int_enable,
};
static struct ida_board board_id[] = {
{ 0x0e114001, "Compaq IDA controller",
&ida_v1_access, 0 },
{ 0x0e114002, "Compaq IDA-2 controller",
&ida_v1_access, 0 },
{ 0x0e114010, "Compaq IAES controller",
&ida_v1_access, 0 },
{ 0x0e114020, "Compaq SMART array controller",
&ida_v1_access, 0 },
{ 0x0e114030, "Compaq SMART-2/E array controller",
&ida_v2_access, 0 },
{ 0, "", 0, 0 }
};
static struct ida_board *ida_eisa_match(eisa_id_t);
static int ida_eisa_probe(device_t);
static int ida_eisa_attach(device_t);
static device_method_t ida_eisa_methods[] = {
DEVMETHOD(device_probe, ida_eisa_probe),
DEVMETHOD(device_attach, ida_eisa_attach),
DEVMETHOD(device_detach, ida_detach),
{ 0, 0 }
};
static driver_t ida_eisa_driver = {
"ida",
ida_eisa_methods,
sizeof(struct ida_softc)
};
static devclass_t ida_devclass;
static struct ida_board *
ida_eisa_match(eisa_id_t id)
{
int i;
for (i = 0; board_id[i].board; i++)
if (board_id[i].board == id)
return (&board_id[i]);
return (NULL);
}
static int
ida_eisa_probe(device_t dev)
{
struct ida_board *board;
u_int32_t io_base;
u_int irq = 0;
board = ida_eisa_match(eisa_get_id(dev));
if (board == NULL)
return (ENXIO);
device_set_desc(dev, board->desc);
io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE);
switch (IDA_EISA_IRQ_MASK & (inb(IDA_EISA_IRQ_REG + io_base))) {
case IDA_EISA_IRQ_15:
irq = 15;
break;
case IDA_EISA_IRQ_14:
irq = 14;
break;
case IDA_EISA_IRQ_11:
irq = 11;
break;
case IDA_EISA_IRQ_10:
irq = 10;
break;
default:
device_printf(dev, "slot %d, illegal irq setting.\n",
eisa_get_slot(dev));
return (ENXIO);
}
eisa_add_iospace(dev, (io_base + IDA_EISA_IOPORT_START),
IDA_EISA_IOPORT_LEN, RESVADDR_NONE);
eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL); /* XXX ??? */
return (0);
}
static int
ida_eisa_attach(device_t dev)
{
struct ida_softc *ida;
struct ida_board *board;
int error;
int rid;
ida = device_get_softc(dev);
ida->dev = dev;
board = ida_eisa_match(eisa_get_id(dev));
ida->cmd = *board->accessor;
ida->flags = board->flags;
ida->regs_res_type = SYS_RES_IOPORT;
ida->regs_res_id = 0;
ida->regs = bus_alloc_resource_any(dev, ida->regs_res_type,
&ida->regs_res_id, RF_ACTIVE);
if (ida->regs == NULL) {
device_printf(dev, "can't allocate register resources\n");
return (ENOMEM);
}
error = bus_dma_tag_create(
/* parent */ NULL,
/* alignment */ 0,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ MAXBSIZE,
/* nsegments */ IDA_NSEG,
/* maxsegsize */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ BUS_DMA_ALLOCNOW,
/* lockfunc */ NULL,
/* lockarg */ NULL,
&ida->parent_dmat);
if (error != 0) {
device_printf(dev, "can't allocate DMA tag\n");
ida_free(ida);
return (ENOMEM);
}
rid = 0;
ida->irq_res_type = SYS_RES_IRQ;
ida->irq = bus_alloc_resource_any(dev, ida->irq_res_type, &rid,
RF_ACTIVE | RF_SHAREABLE);
if (ida->irq == NULL) {
ida_free(ida);
return (ENOMEM);
}
error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY,
ida_intr, ida, &ida->ih);
if (error) {
device_printf(dev, "can't setup interrupt\n");
ida_free(ida);
return (ENOMEM);
}
error = ida_init(ida);
if (error) {
ida_free(ida);
return (error);
}
ida_attach(ida);
ida->flags |= IDA_ATTACHED;
return (0);
}
DRIVER_MODULE(ida, eisa, ida_eisa_driver, ida_devclass, 0, 0);