mirror of
https://git.FreeBSD.org/src.git
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848e30ff51
of kobj(9) from device drivers.
536 lines
15 KiB
C
536 lines
15 KiB
C
/*-
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* Copyright (c) 2003 Jake Burkholder.
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* Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/pcpu.h>
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#include <dev/led/led.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/ofw/openfirm.h>
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#include <machine/bus.h>
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#include <machine/bus_common.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <sparc64/fhc/fhcreg.h>
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#include <sparc64/sbus/ofw_sbus.h>
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struct fhc_devinfo {
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struct ofw_bus_devinfo fdi_obdinfo;
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struct resource_list fdi_rl;
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};
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struct fhc_softc {
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struct resource *sc_memres[FHC_NREG];
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int sc_nrange;
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struct sbus_ranges *sc_ranges;
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int sc_ign;
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struct cdev *sc_led_dev;
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};
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static device_probe_t fhc_probe;
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static device_attach_t fhc_attach;
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static bus_print_child_t fhc_print_child;
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static bus_probe_nomatch_t fhc_probe_nomatch;
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static bus_setup_intr_t fhc_setup_intr;
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static bus_alloc_resource_t fhc_alloc_resource;
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static bus_adjust_resource_t fhc_adjust_resource;
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static bus_get_resource_list_t fhc_get_resource_list;
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static ofw_bus_get_devinfo_t fhc_get_devinfo;
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static void fhc_intr_enable(void *);
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static void fhc_intr_disable(void *);
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static void fhc_intr_assign(void *);
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static void fhc_intr_clear(void *);
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static void fhc_led_func(void *, int);
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static int fhc_print_res(struct fhc_devinfo *);
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static device_method_t fhc_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, fhc_probe),
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DEVMETHOD(device_attach, fhc_attach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, fhc_print_child),
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DEVMETHOD(bus_probe_nomatch, fhc_probe_nomatch),
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DEVMETHOD(bus_alloc_resource, fhc_alloc_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_adjust_resource, fhc_adjust_resource),
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DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource),
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DEVMETHOD(bus_setup_intr, fhc_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
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DEVMETHOD(bus_get_resource_list, fhc_get_resource_list),
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DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
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/* ofw_bus interface */
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DEVMETHOD(ofw_bus_get_devinfo, fhc_get_devinfo),
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DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
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DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
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DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
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DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
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DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
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DEVMETHOD_END
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};
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static driver_t fhc_driver = {
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"fhc",
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fhc_methods,
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sizeof(struct fhc_softc),
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};
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static devclass_t fhc_devclass;
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EARLY_DRIVER_MODULE(fhc, central, fhc_driver, fhc_devclass, 0, 0,
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BUS_PASS_BUS);
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MODULE_DEPEND(fhc, central, 1, 1, 1);
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EARLY_DRIVER_MODULE(fhc, nexus, fhc_driver, fhc_devclass, 0, 0,
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BUS_PASS_BUS);
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MODULE_DEPEND(fhc, nexus, 1, 1, 1);
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MODULE_VERSION(fhc, 1);
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static const struct intr_controller fhc_ic = {
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fhc_intr_enable,
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fhc_intr_disable,
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fhc_intr_assign,
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fhc_intr_clear
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};
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struct fhc_icarg {
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struct fhc_softc *fica_sc;
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struct resource *fica_memres;
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};
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static int
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fhc_probe(device_t dev)
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{
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if (strcmp(ofw_bus_get_name(dev), "fhc") == 0) {
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device_set_desc(dev, "fhc");
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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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fhc_attach(device_t dev)
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{
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char ledname[sizeof("boardXX")];
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struct fhc_devinfo *fdi;
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struct fhc_icarg *fica;
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struct fhc_softc *sc;
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struct sbus_regs *reg;
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phandle_t child;
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phandle_t node;
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device_t cdev;
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uint32_t board;
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uint32_t ctrl;
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uint32_t *intr;
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uint32_t iv;
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char *name;
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int central;
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int error;
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int i;
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int j;
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sc = device_get_softc(dev);
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node = ofw_bus_get_node(dev);
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central = 0;
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if (strcmp(device_get_name(device_get_parent(dev)), "central") == 0)
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central = 1;
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for (i = 0; i < FHC_NREG; i++) {
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j = i;
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sc->sc_memres[i] = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&j, RF_ACTIVE);
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if (sc->sc_memres[i] == NULL) {
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device_printf(dev, "cannot allocate resource %d\n", i);
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error = ENXIO;
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goto fail_memres;
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}
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}
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if (central != 0) {
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board = bus_read_4(sc->sc_memres[FHC_INTERNAL], FHC_BSR);
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board = ((board >> 16) & 0x1) | ((board >> 12) & 0xe);
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} else {
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if (OF_getprop(node, "board#", &board, sizeof(board)) == -1) {
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device_printf(dev, "cannot get board number\n");
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error = ENXIO;
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goto fail_memres;
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}
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}
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device_printf(dev, "board %d, ", board);
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if (OF_getprop_alloc(node, "board-model", 1, (void **)&name) != -1) {
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printf("model %s\n", name);
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free(name, M_OFWPROP);
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} else
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printf("model unknown\n");
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for (i = FHC_FANFAIL; i <= FHC_TOD; i++) {
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bus_write_4(sc->sc_memres[i], FHC_ICLR, INTCLR_IDLE);
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(void)bus_read_4(sc->sc_memres[i], FHC_ICLR);
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}
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sc->sc_ign = board << 1;
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bus_write_4(sc->sc_memres[FHC_IGN], 0x0, sc->sc_ign);
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sc->sc_ign = bus_read_4(sc->sc_memres[FHC_IGN], 0x0);
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ctrl = bus_read_4(sc->sc_memres[FHC_INTERNAL], FHC_CTRL);
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if (central == 0)
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ctrl |= FHC_CTRL_IXIST;
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ctrl &= ~(FHC_CTRL_AOFF | FHC_CTRL_BOFF | FHC_CTRL_SLINE);
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bus_write_4(sc->sc_memres[FHC_INTERNAL], FHC_CTRL, ctrl);
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(void)bus_read_4(sc->sc_memres[FHC_INTERNAL], FHC_CTRL);
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sc->sc_nrange = OF_getprop_alloc(node, "ranges",
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sizeof(*sc->sc_ranges), (void **)&sc->sc_ranges);
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if (sc->sc_nrange == -1) {
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device_printf(dev, "cannot get ranges\n");
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error = ENXIO;
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goto fail_memres;
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}
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/*
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* Apparently only the interrupt controller of boards hanging off
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* of central(4) is indented to be used, otherwise we would have
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* conflicts registering the interrupt controllers for all FHC
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* boards as the board number and thus the IGN isn't unique.
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*/
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if (central == 1) {
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/*
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* Hunt through all the interrupt mapping regs and register
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* our interrupt controller for the corresponding interrupt
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* vectors. We do this early in order to be able to catch
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* stray interrupts.
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*/
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for (i = FHC_FANFAIL; i <= FHC_TOD; i++) {
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fica = malloc(sizeof(*fica), M_DEVBUF, M_NOWAIT);
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if (fica == NULL)
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panic("%s: could not allocate interrupt "
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"controller argument", __func__);
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fica->fica_sc = sc;
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fica->fica_memres = sc->sc_memres[i];
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#ifdef FHC_DEBUG
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device_printf(dev, "intr map %d: %#lx, clr: %#lx\n", i,
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(u_long)bus_read_4(fica->fica_memres, FHC_IMAP),
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(u_long)bus_read_4(fica->fica_memres, FHC_ICLR));
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#endif
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/*
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* XXX we only pick the INO rather than the INR
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* from the IMR since the firmware may not provide
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* the IGN and the IGN is constant for all devices
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* on that FireHose controller.
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*/
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j = intr_controller_register(INTMAP_VEC(sc->sc_ign,
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INTINO(bus_read_4(fica->fica_memres, FHC_IMAP))),
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&fhc_ic, fica);
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if (j != 0)
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device_printf(dev, "could not register "
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"interrupt controller for map %d (%d)\n",
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i, j);
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}
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} else {
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snprintf(ledname, sizeof(ledname), "board%d", board);
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sc->sc_led_dev = led_create(fhc_led_func, sc, ledname);
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}
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for (child = OF_child(node); child != 0; child = OF_peer(child)) {
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fdi = malloc(sizeof(*fdi), M_DEVBUF, M_WAITOK | M_ZERO);
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if (ofw_bus_gen_setup_devinfo(&fdi->fdi_obdinfo, child) != 0) {
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free(fdi, M_DEVBUF);
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continue;
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}
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i = OF_getprop_alloc(child, "reg", sizeof(*reg),
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(void **)®);
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if (i == -1) {
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device_printf(dev, "<%s>: incomplete\n",
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fdi->fdi_obdinfo.obd_name);
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ofw_bus_gen_destroy_devinfo(&fdi->fdi_obdinfo);
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free(fdi, M_DEVBUF);
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continue;
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}
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resource_list_init(&fdi->fdi_rl);
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for (j = 0; j < i; j++)
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resource_list_add(&fdi->fdi_rl, SYS_RES_MEMORY, j,
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reg[j].sbr_offset, reg[j].sbr_offset +
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reg[j].sbr_size, reg[j].sbr_size);
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free(reg, M_OFWPROP);
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if (central == 1) {
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i = OF_getprop_alloc(child, "interrupts",
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sizeof(*intr), (void **)&intr);
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if (i != -1) {
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for (j = 0; j < i; j++) {
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iv = INTMAP_VEC(sc->sc_ign, intr[j]);
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resource_list_add(&fdi->fdi_rl,
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SYS_RES_IRQ, j, iv, iv, 1);
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}
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free(intr, M_OFWPROP);
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}
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}
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cdev = device_add_child(dev, NULL, -1);
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if (cdev == NULL) {
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device_printf(dev, "<%s>: device_add_child failed\n",
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fdi->fdi_obdinfo.obd_name);
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resource_list_free(&fdi->fdi_rl);
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ofw_bus_gen_destroy_devinfo(&fdi->fdi_obdinfo);
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free(fdi, M_DEVBUF);
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continue;
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}
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device_set_ivars(cdev, fdi);
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}
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return (bus_generic_attach(dev));
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fail_memres:
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for (i = 0; i < FHC_NREG; i++)
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if (sc->sc_memres[i] != NULL)
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(sc->sc_memres[i]), sc->sc_memres[i]);
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return (error);
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}
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static int
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fhc_print_child(device_t dev, device_t child)
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{
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int rv;
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rv = bus_print_child_header(dev, child);
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rv += fhc_print_res(device_get_ivars(child));
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rv += bus_print_child_footer(dev, child);
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return (rv);
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}
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static void
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fhc_probe_nomatch(device_t dev, device_t child)
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{
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const char *type;
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device_printf(dev, "<%s>", ofw_bus_get_name(child));
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fhc_print_res(device_get_ivars(child));
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type = ofw_bus_get_type(child);
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printf(" type %s (no driver attached)\n",
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type != NULL ? type : "unknown");
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}
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static void
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fhc_intr_enable(void *arg)
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{
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struct intr_vector *iv = arg;
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struct fhc_icarg *fica = iv->iv_icarg;
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bus_write_4(fica->fica_memres, FHC_IMAP,
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INTMAP_ENABLE(iv->iv_vec, iv->iv_mid));
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(void)bus_read_4(fica->fica_memres, FHC_IMAP);
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}
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static void
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fhc_intr_disable(void *arg)
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{
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struct intr_vector *iv = arg;
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struct fhc_icarg *fica = iv->iv_icarg;
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bus_write_4(fica->fica_memres, FHC_IMAP, iv->iv_vec);
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(void)bus_read_4(fica->fica_memres, FHC_IMAP);
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}
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static void
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fhc_intr_assign(void *arg)
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{
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struct intr_vector *iv = arg;
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struct fhc_icarg *fica = iv->iv_icarg;
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bus_write_4(fica->fica_memres, FHC_IMAP, INTMAP_TID(
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bus_read_4(fica->fica_memres, FHC_IMAP), iv->iv_mid));
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(void)bus_read_4(fica->fica_memres, FHC_IMAP);
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}
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static void
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fhc_intr_clear(void *arg)
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{
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struct intr_vector *iv = arg;
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struct fhc_icarg *fica = iv->iv_icarg;
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bus_write_4(fica->fica_memres, FHC_ICLR, INTCLR_IDLE);
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(void)bus_read_4(fica->fica_memres, FHC_ICLR);
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}
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static int
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fhc_setup_intr(device_t bus, device_t child, struct resource *r, int flags,
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driver_filter_t *filt, driver_intr_t *func, void *arg, void **cookiep)
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{
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struct fhc_softc *sc;
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u_long vec;
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sc = device_get_softc(bus);
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/*
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* Make sure the vector is fully specified and we registered
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* our interrupt controller for it.
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*/
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vec = rman_get_start(r);
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if (INTIGN(vec) != sc->sc_ign || intr_vectors[vec].iv_ic != &fhc_ic) {
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device_printf(bus, "invalid interrupt vector 0x%lx\n", vec);
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return (EINVAL);
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}
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return (bus_generic_setup_intr(bus, child, r, flags, filt, func,
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arg, cookiep));
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}
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static struct resource *
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fhc_alloc_resource(device_t bus, device_t child, int type, int *rid,
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u_long start, u_long end, u_long count, u_int flags)
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{
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struct resource_list *rl;
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struct resource_list_entry *rle;
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struct fhc_softc *sc;
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struct resource *res;
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bus_addr_t coffset;
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bus_addr_t cend;
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bus_addr_t phys;
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int isdefault;
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int passthrough;
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int i;
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isdefault = (start == 0UL && end == ~0UL);
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passthrough = (device_get_parent(child) != bus);
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res = NULL;
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rle = NULL;
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rl = BUS_GET_RESOURCE_LIST(bus, child);
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sc = device_get_softc(bus);
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switch (type) {
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case SYS_RES_IRQ:
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return (resource_list_alloc(rl, bus, child, type, rid, start,
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end, count, flags));
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case SYS_RES_MEMORY:
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if (!passthrough) {
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rle = resource_list_find(rl, type, *rid);
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if (rle == NULL)
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return (NULL);
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if (rle->res != NULL)
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panic("%s: resource entry is busy", __func__);
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if (isdefault) {
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start = rle->start;
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count = ulmax(count, rle->count);
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end = ulmax(rle->end, start + count - 1);
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}
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|
}
|
|
for (i = 0; i < sc->sc_nrange; i++) {
|
|
coffset = sc->sc_ranges[i].coffset;
|
|
cend = coffset + sc->sc_ranges[i].size - 1;
|
|
if (start >= coffset && end <= cend) {
|
|
start -= coffset;
|
|
end -= coffset;
|
|
phys = sc->sc_ranges[i].poffset |
|
|
((bus_addr_t)sc->sc_ranges[i].pspace << 32);
|
|
res = bus_generic_alloc_resource(bus, child,
|
|
type, rid, phys + start, phys + end,
|
|
count, flags);
|
|
if (!passthrough)
|
|
rle->res = res;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
return (res);
|
|
}
|
|
|
|
static int
|
|
fhc_adjust_resource(device_t bus __unused, device_t child __unused,
|
|
int type __unused, struct resource *r __unused, u_long start __unused,
|
|
u_long end __unused)
|
|
{
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static struct resource_list *
|
|
fhc_get_resource_list(device_t bus, device_t child)
|
|
{
|
|
struct fhc_devinfo *fdi;
|
|
|
|
fdi = device_get_ivars(child);
|
|
return (&fdi->fdi_rl);
|
|
}
|
|
|
|
static const struct ofw_bus_devinfo *
|
|
fhc_get_devinfo(device_t bus, device_t child)
|
|
{
|
|
struct fhc_devinfo *fdi;
|
|
|
|
fdi = device_get_ivars(child);
|
|
return (&fdi->fdi_obdinfo);
|
|
}
|
|
|
|
static void
|
|
fhc_led_func(void *arg, int onoff)
|
|
{
|
|
struct fhc_softc *sc;
|
|
uint32_t ctrl;
|
|
|
|
sc = (struct fhc_softc *)arg;
|
|
|
|
ctrl = bus_read_4(sc->sc_memres[FHC_INTERNAL], FHC_CTRL);
|
|
if (onoff)
|
|
ctrl |= FHC_CTRL_RLED;
|
|
else
|
|
ctrl &= ~FHC_CTRL_RLED;
|
|
ctrl &= ~(FHC_CTRL_AOFF | FHC_CTRL_BOFF | FHC_CTRL_SLINE);
|
|
bus_write_4(sc->sc_memres[FHC_INTERNAL], FHC_CTRL, ctrl);
|
|
(void)bus_read_4(sc->sc_memres[FHC_INTERNAL], FHC_CTRL);
|
|
}
|
|
|
|
static int
|
|
fhc_print_res(struct fhc_devinfo *fdi)
|
|
{
|
|
int rv;
|
|
|
|
rv = 0;
|
|
rv += resource_list_print_type(&fdi->fdi_rl, "mem", SYS_RES_MEMORY,
|
|
"%#lx");
|
|
rv += resource_list_print_type(&fdi->fdi_rl, "irq", SYS_RES_IRQ, "%ld");
|
|
return (rv);
|
|
}
|