| Current Path : /sys/sparc64/fhc/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/sparc64/fhc/fhc.c |
/*-
* Copyright (c) 2003 Jake Burkholder.
* Copyright (c) 2005 Marius Strobl <marius@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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/sparc64/fhc/fhc.c 230687 2012-01-28 23:53:06Z marius $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/pcpu.h>
#include <dev/led/led.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/ofw/openfirm.h>
#include <machine/bus.h>
#include <machine/bus_common.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sparc64/fhc/fhcreg.h>
#include <sparc64/sbus/ofw_sbus.h>
struct fhc_devinfo {
struct ofw_bus_devinfo fdi_obdinfo;
struct resource_list fdi_rl;
};
struct fhc_softc {
struct resource *sc_memres[FHC_NREG];
int sc_nrange;
struct sbus_ranges *sc_ranges;
int sc_ign;
struct cdev *sc_led_dev;
};
static device_probe_t fhc_probe;
static device_attach_t fhc_attach;
static bus_print_child_t fhc_print_child;
static bus_probe_nomatch_t fhc_probe_nomatch;
static bus_setup_intr_t fhc_setup_intr;
static bus_alloc_resource_t fhc_alloc_resource;
static bus_adjust_resource_t fhc_adjust_resource;
static bus_get_resource_list_t fhc_get_resource_list;
static ofw_bus_get_devinfo_t fhc_get_devinfo;
static void fhc_intr_enable(void *);
static void fhc_intr_disable(void *);
static void fhc_intr_assign(void *);
static void fhc_intr_clear(void *);
static void fhc_led_func(void *, int);
static int fhc_print_res(struct fhc_devinfo *);
static device_method_t fhc_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, fhc_probe),
DEVMETHOD(device_attach, fhc_attach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */
DEVMETHOD(bus_print_child, fhc_print_child),
DEVMETHOD(bus_probe_nomatch, fhc_probe_nomatch),
DEVMETHOD(bus_alloc_resource, fhc_alloc_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_adjust_resource, fhc_adjust_resource),
DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource),
DEVMETHOD(bus_setup_intr, fhc_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
DEVMETHOD(bus_get_resource_list, fhc_get_resource_list),
DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
/* ofw_bus interface */
DEVMETHOD(ofw_bus_get_devinfo, fhc_get_devinfo),
DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
DEVMETHOD_END
};
static driver_t fhc_driver = {
"fhc",
fhc_methods,
sizeof(struct fhc_softc),
};
static devclass_t fhc_devclass;
EARLY_DRIVER_MODULE(fhc, central, fhc_driver, fhc_devclass, 0, 0,
BUS_PASS_BUS);
MODULE_DEPEND(fhc, central, 1, 1, 1);
EARLY_DRIVER_MODULE(fhc, nexus, fhc_driver, fhc_devclass, 0, 0,
BUS_PASS_BUS);
MODULE_DEPEND(fhc, nexus, 1, 1, 1);
MODULE_VERSION(fhc, 1);
static const struct intr_controller fhc_ic = {
fhc_intr_enable,
fhc_intr_disable,
fhc_intr_assign,
fhc_intr_clear
};
struct fhc_icarg {
struct fhc_softc *fica_sc;
struct resource *fica_memres;
};
static int
fhc_probe(device_t dev)
{
if (strcmp(ofw_bus_get_name(dev), "fhc") == 0) {
device_set_desc(dev, "fhc");
return (0);
}
return (ENXIO);
}
static int
fhc_attach(device_t dev)
{
char ledname[sizeof("boardXX")];
struct fhc_devinfo *fdi;
struct fhc_icarg *fica;
struct fhc_softc *sc;
struct sbus_regs *reg;
phandle_t child;
phandle_t node;
device_t cdev;
uint32_t board;
uint32_t ctrl;
uint32_t *intr;
uint32_t iv;
char *name;
int central;
int error;
int i;
int j;
sc = device_get_softc(dev);
node = ofw_bus_get_node(dev);
central = 0;
if (strcmp(device_get_name(device_get_parent(dev)), "central") == 0)
central = 1;
for (i = 0; i < FHC_NREG; i++) {
j = i;
sc->sc_memres[i] = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&j, RF_ACTIVE);
if (sc->sc_memres[i] == NULL) {
device_printf(dev, "cannot allocate resource %d\n", i);
error = ENXIO;
goto fail_memres;
}
}
if (central != 0) {
board = bus_read_4(sc->sc_memres[FHC_INTERNAL], FHC_BSR);
board = ((board >> 16) & 0x1) | ((board >> 12) & 0xe);
} else {
if (OF_getprop(node, "board#", &board, sizeof(board)) == -1) {
device_printf(dev, "cannot get board number\n");
error = ENXIO;
goto fail_memres;
}
}
device_printf(dev, "board %d, ", board);
if (OF_getprop_alloc(node, "board-model", 1, (void **)&name) != -1) {
printf("model %s\n", name);
free(name, M_OFWPROP);
} else
printf("model unknown\n");
for (i = FHC_FANFAIL; i <= FHC_TOD; i++) {
bus_write_4(sc->sc_memres[i], FHC_ICLR, INTCLR_IDLE);
(void)bus_read_4(sc->sc_memres[i], FHC_ICLR);
}
sc->sc_ign = board << 1;
bus_write_4(sc->sc_memres[FHC_IGN], 0x0, sc->sc_ign);
sc->sc_ign = bus_read_4(sc->sc_memres[FHC_IGN], 0x0);
ctrl = bus_read_4(sc->sc_memres[FHC_INTERNAL], FHC_CTRL);
if (central == 0)
ctrl |= FHC_CTRL_IXIST;
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);
sc->sc_nrange = OF_getprop_alloc(node, "ranges",
sizeof(*sc->sc_ranges), (void **)&sc->sc_ranges);
if (sc->sc_nrange == -1) {
device_printf(dev, "cannot get ranges\n");
error = ENXIO;
goto fail_memres;
}
/*
* Apparently only the interrupt controller of boards hanging off
* of central(4) is indented to be used, otherwise we would have
* conflicts registering the interrupt controllers for all FHC
* boards as the board number and thus the IGN isn't unique.
*/
if (central == 1) {
/*
* Hunt through all the interrupt mapping regs and register
* our interrupt controller for the corresponding interrupt
* vectors. We do this early in order to be able to catch
* stray interrupts.
*/
for (i = FHC_FANFAIL; i <= FHC_TOD; i++) {
fica = malloc(sizeof(*fica), M_DEVBUF, M_NOWAIT);
if (fica == NULL)
panic("%s: could not allocate interrupt "
"controller argument", __func__);
fica->fica_sc = sc;
fica->fica_memres = sc->sc_memres[i];
#ifdef FHC_DEBUG
device_printf(dev, "intr map %d: %#lx, clr: %#lx\n", i,
(u_long)bus_read_4(fica->fica_memres, FHC_IMAP),
(u_long)bus_read_4(fica->fica_memres, FHC_ICLR));
#endif
/*
* XXX we only pick the INO rather than the INR
* from the IMR since the firmware may not provide
* the IGN and the IGN is constant for all devices
* on that FireHose controller.
*/
j = intr_controller_register(INTMAP_VEC(sc->sc_ign,
INTINO(bus_read_4(fica->fica_memres, FHC_IMAP))),
&fhc_ic, fica);
if (j != 0)
device_printf(dev, "could not register "
"interrupt controller for map %d (%d)\n",
i, j);
}
} else {
snprintf(ledname, sizeof(ledname), "board%d", board);
sc->sc_led_dev = led_create(fhc_led_func, sc, ledname);
}
for (child = OF_child(node); child != 0; child = OF_peer(child)) {
fdi = malloc(sizeof(*fdi), M_DEVBUF, M_WAITOK | M_ZERO);
if (ofw_bus_gen_setup_devinfo(&fdi->fdi_obdinfo, child) != 0) {
free(fdi, M_DEVBUF);
continue;
}
i = OF_getprop_alloc(child, "reg", sizeof(*reg),
(void **)®);
if (i == -1) {
device_printf(dev, "<%s>: incomplete\n",
fdi->fdi_obdinfo.obd_name);
ofw_bus_gen_destroy_devinfo(&fdi->fdi_obdinfo);
free(fdi, M_DEVBUF);
continue;
}
resource_list_init(&fdi->fdi_rl);
for (j = 0; j < i; j++)
resource_list_add(&fdi->fdi_rl, SYS_RES_MEMORY, j,
reg[j].sbr_offset, reg[j].sbr_offset +
reg[j].sbr_size, reg[j].sbr_size);
free(reg, M_OFWPROP);
if (central == 1) {
i = OF_getprop_alloc(child, "interrupts",
sizeof(*intr), (void **)&intr);
if (i != -1) {
for (j = 0; j < i; j++) {
iv = INTMAP_VEC(sc->sc_ign, intr[j]);
resource_list_add(&fdi->fdi_rl,
SYS_RES_IRQ, j, iv, iv, 1);
}
free(intr, M_OFWPROP);
}
}
cdev = device_add_child(dev, NULL, -1);
if (cdev == NULL) {
device_printf(dev, "<%s>: device_add_child failed\n",
fdi->fdi_obdinfo.obd_name);
resource_list_free(&fdi->fdi_rl);
ofw_bus_gen_destroy_devinfo(&fdi->fdi_obdinfo);
free(fdi, M_DEVBUF);
continue;
}
device_set_ivars(cdev, fdi);
}
return (bus_generic_attach(dev));
fail_memres:
for (i = 0; i < FHC_NREG; i++)
if (sc->sc_memres[i] != NULL)
bus_release_resource(dev, SYS_RES_MEMORY,
rman_get_rid(sc->sc_memres[i]), sc->sc_memres[i]);
return (error);
}
static int
fhc_print_child(device_t dev, device_t child)
{
int rv;
rv = bus_print_child_header(dev, child);
rv += fhc_print_res(device_get_ivars(child));
rv += bus_print_child_footer(dev, child);
return (rv);
}
static void
fhc_probe_nomatch(device_t dev, device_t child)
{
const char *type;
device_printf(dev, "<%s>", ofw_bus_get_name(child));
fhc_print_res(device_get_ivars(child));
type = ofw_bus_get_type(child);
printf(" type %s (no driver attached)\n",
type != NULL ? type : "unknown");
}
static void
fhc_intr_enable(void *arg)
{
struct intr_vector *iv = arg;
struct fhc_icarg *fica = iv->iv_icarg;
bus_write_4(fica->fica_memres, FHC_IMAP,
INTMAP_ENABLE(iv->iv_vec, iv->iv_mid));
(void)bus_read_4(fica->fica_memres, FHC_IMAP);
}
static void
fhc_intr_disable(void *arg)
{
struct intr_vector *iv = arg;
struct fhc_icarg *fica = iv->iv_icarg;
bus_write_4(fica->fica_memres, FHC_IMAP, iv->iv_vec);
(void)bus_read_4(fica->fica_memres, FHC_IMAP);
}
static void
fhc_intr_assign(void *arg)
{
struct intr_vector *iv = arg;
struct fhc_icarg *fica = iv->iv_icarg;
bus_write_4(fica->fica_memres, FHC_IMAP, INTMAP_TID(
bus_read_4(fica->fica_memres, FHC_IMAP), iv->iv_mid));
(void)bus_read_4(fica->fica_memres, FHC_IMAP);
}
static void
fhc_intr_clear(void *arg)
{
struct intr_vector *iv = arg;
struct fhc_icarg *fica = iv->iv_icarg;
bus_write_4(fica->fica_memres, FHC_ICLR, INTCLR_IDLE);
(void)bus_read_4(fica->fica_memres, FHC_ICLR);
}
static int
fhc_setup_intr(device_t bus, device_t child, struct resource *r, int flags,
driver_filter_t *filt, driver_intr_t *func, void *arg, void **cookiep)
{
struct fhc_softc *sc;
u_long vec;
sc = device_get_softc(bus);
/*
* Make sure the vector is fully specified and we registered
* our interrupt controller for it.
*/
vec = rman_get_start(r);
if (INTIGN(vec) != sc->sc_ign || intr_vectors[vec].iv_ic != &fhc_ic) {
device_printf(bus, "invalid interrupt vector 0x%lx\n", vec);
return (EINVAL);
}
return (bus_generic_setup_intr(bus, child, r, flags, filt, func,
arg, cookiep));
}
static struct resource *
fhc_alloc_resource(device_t bus, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
{
struct resource_list *rl;
struct resource_list_entry *rle;
struct fhc_softc *sc;
struct resource *res;
bus_addr_t coffset;
bus_addr_t cend;
bus_addr_t phys;
int isdefault;
int passthrough;
int i;
isdefault = (start == 0UL && end == ~0UL);
passthrough = (device_get_parent(child) != bus);
res = NULL;
rle = NULL;
rl = BUS_GET_RESOURCE_LIST(bus, child);
sc = device_get_softc(bus);
switch (type) {
case SYS_RES_IRQ:
return (resource_list_alloc(rl, bus, child, type, rid, start,
end, count, flags));
case SYS_RES_MEMORY:
if (!passthrough) {
rle = resource_list_find(rl, type, *rid);
if (rle == NULL)
return (NULL);
if (rle->res != NULL)
panic("%s: resource entry is busy", __func__);
if (isdefault) {
start = rle->start;
count = ulmax(count, rle->count);
end = ulmax(rle->end, start + count - 1);
}
}
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);
}