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-rw-r--r--sys/dev/ieee488/pcii.c255
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diff --git a/sys/dev/ieee488/pcii.c b/sys/dev/ieee488/pcii.c
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--- a/sys/dev/ieee488/pcii.c
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-/*-
- * Copyright (c) 2005 Poul-Henning Kamp <phk@FreeBSD.org>
- * Copyright (c) 2010 Joerg Wunsch <joerg@FreeBSD.org>
- * 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.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 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.
- *
- * Driver for GPIB cards based on NEC µPD7210 and compatibles.
- *
- * This driver just hooks up to the hardware and leaves all the interesting
- * stuff to upd7210.c.
- *
- * Supported hardware:
- * PCIIA compatible cards.
- *
- * Tested and known working:
- * "B&C Microsystems PC488A-0"
- * "National Instruments GPIB-PCII/PCIIA" (in PCIIa mode)
- * "Axiom AX5488"
- *
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/bus.h>
-#include <machine/bus.h>
-#include <machine/resource.h>
-#include <sys/rman.h>
-#include <isa/isavar.h>
-
-#define UPD7210_HW_DRIVER
-#include <dev/ieee488/upd7210.h>
-
-struct pcii_softc {
- int foo;
- struct resource *res[11];
- void *intr_handler;
- struct upd7210 upd7210;
-};
-
-static devclass_t pcii_devclass;
-
-static int pcii_probe(device_t dev);
-static int pcii_attach(device_t dev);
-
-static device_method_t pcii_methods[] = {
- DEVMETHOD(device_probe, pcii_probe),
- DEVMETHOD(device_attach, pcii_attach),
- DEVMETHOD(device_suspend, bus_generic_suspend),
- DEVMETHOD(device_resume, bus_generic_resume),
-
- { 0, 0 }
-};
-
-static struct resource_spec pcii_res_spec[] = {
- { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE},
- { SYS_RES_DRQ, 0, RF_ACTIVE | RF_SHAREABLE | RF_OPTIONAL},
- { SYS_RES_IOPORT, 0, RF_ACTIVE},
- { SYS_RES_IOPORT, 1, RF_ACTIVE},
- { SYS_RES_IOPORT, 2, RF_ACTIVE},
- { SYS_RES_IOPORT, 3, RF_ACTIVE},
- { SYS_RES_IOPORT, 4, RF_ACTIVE},
- { SYS_RES_IOPORT, 5, RF_ACTIVE},
- { SYS_RES_IOPORT, 6, RF_ACTIVE},
- { SYS_RES_IOPORT, 7, RF_ACTIVE},
- { SYS_RES_IOPORT, 8, RF_ACTIVE | RF_SHAREABLE},
- { -1, 0, 0 }
-};
-
-static driver_t pcii_driver = {
- "pcii",
- pcii_methods,
- sizeof(struct pcii_softc),
-};
-
-static int
-pcii_probe(device_t dev)
-{
- int rid, i, j;
- u_long start, count, addr;
- int error = 0;
- struct pcii_softc *sc;
-
- device_set_desc(dev, "PCII IEEE-4888 controller");
- sc = device_get_softc(dev);
-
- rid = 0;
- if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count) != 0)
- return ENXIO;
- /*
- * The PCIIA decodes a fixed pattern of 0x2e1 for the lower 10
- * address bits A0 ... A9. Bits A10 through A12 are used by
- * the µPD7210 register select lines. This makes the
- * individual 7210 register being 0x400 bytes apart in the ISA
- * bus address space. Address bits A13 and A14 are compared
- * to a DIP switch setting on the card, allowing for up to 4
- * different cards being installed (at base addresses 0x2e1,
- * 0x22e1, 0x42e1, and 0x62e1, respectively). A15 has been
- * used to select an optional on-board time-of-day clock chip
- * (MM58167A) on the original PCIIA rather than the µPD7210
- * (which is not implemented on later boards). The
- * documentation states the respective addresses for that chip
- * should be handled as reserved addresses, which we don't do
- * (right now). Finally, the IO addresses 0x2f0 ... 0x2f7 for
- * a "special interrupt handling feature" (re-enable
- * interrupts so the IRQ can be shared).
- *
- * Usually, the user will only set the base address in the
- * device hints, so we handle the rest here.
- *
- * (Source: GPIB-PCIIA Technical Reference Manual, September
- * 1989 Edition, National Instruments.)
- */
- if ((start & 0x3ff) != 0x2e1) {
- if (bootverbose)
- printf("pcii_probe: PCIIA base address 0x%lx not "
- "0x2e1/0x22e1/0x42e1/0x62e1\n",
- start);
- return (ENXIO);
- }
-
- for (rid = 0, addr = start; rid < 8; rid++, addr += 0x400) {
- if (bus_set_resource(dev, SYS_RES_IOPORT, rid, addr, 1) != 0) {
- printf("pcii_probe: could not set IO port 0x%lx\n",
- addr);
- return (ENXIO);
- }
- }
- if (bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &count) != 0) {
- printf("pcii_probe: cannot obtain IRQ level\n");
- return ENXIO;
- }
- if (start > 7) {
- printf("pcii_probe: IRQ level %lu too high\n", start);
- return ENXIO;
- }
-
- if (bus_set_resource(dev, SYS_RES_IOPORT, 8, 0x2f0 + start, 1) != 0) {
- printf("pcii_probe: could not set IO port 0x%3lx\n",
- 0x2f0 + start);
- return (ENXIO);
- }
-
- error = bus_alloc_resources(dev, pcii_res_spec, sc->res);
- if (error) {
- printf("pcii_probe: Could not allocate resources\n");
- return (error);
- }
- error = ENXIO;
- /*
- * Perform some basic tests on the µPD7210 registers. At
- * least *some* register must read different from 0x00 or
- * 0xff.
- */
- for (i = 0; i < 8; i++) {
- j = bus_read_1(sc->res[2 + i], 0);
- if (j != 0x00 && j != 0xff)
- error = 0;
- }
- /* SPSR/SPMR read/write test */
- if (!error) {
- bus_write_1(sc->res[2 + 3], 0, 0x55);
- if (bus_read_1(sc->res[2 + 3], 0) != 0x55)
- error = ENXIO;
- }
- if (!error) {
- bus_write_1(sc->res[2 + 3], 0, 0xaa);
- if (bus_read_1(sc->res[2 + 3], 0) != 0xaa)
- error = ENXIO;
- }
- if (error)
- printf("pcii_probe: probe failure\n");
-
- bus_release_resources(dev, pcii_res_spec, sc->res);
- return (error);
-}
-
-static int
-pcii_attach(device_t dev)
-{
- struct pcii_softc *sc;
- u_long start, count;
- int unit;
- int rid;
- int error = 0;
-
- unit = device_get_unit(dev);
- sc = device_get_softc(dev);
- memset(sc, 0, sizeof *sc);
-
- device_set_desc(dev, "PCII IEEE-4888 controller");
-
- if (bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &count) != 0) {
- printf("pcii_attach: cannot obtain IRQ number\n");
- return ENXIO;
- }
-
- error = bus_alloc_resources(dev, pcii_res_spec, sc->res);
- if (error)
- return (error);
-
- error = bus_setup_intr(dev, sc->res[0],
- INTR_TYPE_MISC | INTR_MPSAFE, NULL,
- upd7210intr, &sc->upd7210, &sc->intr_handler);
- if (error) {
- bus_release_resources(dev, pcii_res_spec, sc->res);
- return (error);
- }
-
- for (rid = 0; rid < 8; rid++) {
- sc->upd7210.reg_res[rid] = sc->res[2 + rid];
- sc->upd7210.reg_offset[rid] = 0;
- }
- sc->upd7210.irq_clear_res = sc->res[10];
- sc->upd7210.use_fifo = 0;
-
- if (sc->res[1] == NULL)
- sc->upd7210.dmachan = -1;
- else
- sc->upd7210.dmachan = rman_get_start(sc->res[1]);
-
- upd7210attach(&sc->upd7210);
- device_printf(dev, "attached gpib%d\n", sc->upd7210.unit);
-
- return (0);
-}
-
-DRIVER_MODULE(pcii, isa, pcii_driver, pcii_devclass, 0, 0);
-DRIVER_MODULE(pcii, acpi, pcii_driver, pcii_devclass, 0, 0);