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086646f7c6
don't care about the alignment, set it to 1, meaning single byte alignment.
188 lines
5.1 KiB
C
188 lines
5.1 KiB
C
/*-
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* Copyright (c) 1999 Jonathan Lemon
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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, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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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
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* FOR 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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* $Id: ida_pci.c,v 1.3 1999/07/29 01:03:02 mdodd Exp $
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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/malloc.h>
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#include <sys/kernel.h>
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#include <sys/buf.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <sys/devicestat.h>
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#include <machine/bus_memio.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 <pci/pcireg.h>
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#include <pci/pcivar.h>
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#include <dev/ida/idavar.h>
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#define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF
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#define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF
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#define IDA_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */
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#define IDA_DEVICEID_SMART 0xAE100E11
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static struct {
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u_long board;
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char *desc;
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} board_id[] = {
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{ 0x4030, "Compaq SMART-2/P array controller" },
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{ 0x4031, "Compaq SMART-2SL array controller" },
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{ 0x4032, "Compaq Smart Array 3200 controller" },
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{ 0x4033, "Compaq Smart Array 3100ES controller" },
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{ 0x4034, "Compaq Smart Array 221 controller" },
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{ 0, "" },
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};
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static int ida_pci_probe(device_t dev);
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static int ida_pci_attach(device_t dev);
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static device_method_t ida_pci_methods[] = {
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DEVMETHOD(device_probe, ida_pci_probe),
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DEVMETHOD(device_attach, ida_pci_attach),
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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{ 0, 0 }
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};
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static driver_t ida_pci_driver = {
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"ida",
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ida_pci_methods,
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sizeof(struct ida_softc)
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};
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static devclass_t ida_devclass;
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static int
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ida_pci_probe(device_t dev)
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{
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u_long board;
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int i;
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if (pci_get_devid(dev) == IDA_DEVICEID_SMART) {
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board = pci_get_subdevice(dev);
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for (i = 0; board_id[i].board; i++) {
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if (board_id[i].board == board) {
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device_set_desc(dev, board_id[i].desc);
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return (0);
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}
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}
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/*
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* It's an unknown Compaq SMART device, but assume we
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* can support it.
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*/
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device_set_desc(dev, "Unknown Compaq Smart Array controller");
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return (0);
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}
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return (ENXIO);
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}
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static int
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ida_pci_attach(device_t dev)
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{
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struct ida_softc *ida;
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u_int command;
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int error, rid;
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command = pci_read_config(dev, PCIR_COMMAND, 1);
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/*
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* for multiple card types, need to re-determine which type is
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* being attached here
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*/
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/*
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* it appears that this board only does MEMIO access.
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*/
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if ((command & PCIM_CMD_MEMEN) == 0) {
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device_printf(dev, "Only memory mapped I/O is supported\n");
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return (ENXIO);
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}
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ida = (struct ida_softc *)device_get_softc(dev);
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ida->dev = dev;
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ida->regs_res_type = SYS_RES_MEMORY;
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ida->regs_res_id = IDA_PCI_MEMADDR;
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ida->regs = bus_alloc_resource(dev, ida->regs_res_type,
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&ida->regs_res_id, 0, ~0, 1, RF_ACTIVE);
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if (ida->regs == NULL) {
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device_printf(dev, "can't allocate register resources\n");
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return (ENOMEM);
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}
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error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
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/*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
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/*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
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/*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG,
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/*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW,
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&ida->parent_dmat);
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if (error != 0) {
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device_printf(dev, "can't allocate DMA tag\n");
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ida_free(ida);
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return (ENOMEM);
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}
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rid = 0;
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ida->irq_res_type = SYS_RES_IRQ;
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ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid,
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0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
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if (ida->irq == NULL) {
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ida_free(ida);
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return (ENOMEM);
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}
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error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO,
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ida_intr, ida, &ida->ih);
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if (error) {
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device_printf(dev, "can't setup interrupt\n");
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ida_free(ida);
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return (ENOMEM);
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}
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error = ida_init(ida);
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if (error) {
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ida_free(ida);
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return (error);
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}
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ida_attach(ida);
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ida->flags = IDA_ATTACHED;
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return (0);
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}
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DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0);
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