| Current Path : /compat/linux/proc/68247/root/compat/linux/proc/68247/root/sys/dev/atkbdc/ |
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 : //compat/linux/proc/68247/root/compat/linux/proc/68247/root/sys/dev/atkbdc/atkbdc_ebus.c |
/*-
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* 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 as
* the first lines of this file unmodified.
* 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 AUTHORS ``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 AUTHORS 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.
*
* from: FreeBSD: src/sys/isa/atkbdc_isa.c,v 1.31 2005/05/29 04:42:28 nyan
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/atkbdc/atkbdc_ebus.c 207354 2010-04-29 06:16:00Z sobomax $");
#include "opt_kbd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/kbio.h>
#include <sys/malloc.h>
#include <dev/ofw/ofw_bus.h>
#include <machine/resource.h>
#include <machine/ver.h>
#include <sys/rman.h>
#include <dev/kbd/kbdreg.h>
#include <dev/atkbdc/atkbdreg.h>
#include <dev/atkbdc/atkbdc_subr.h>
#include <dev/atkbdc/atkbdcreg.h>
#include <dev/atkbdc/psm.h>
static device_probe_t atkbdc_ebus_probe;
static device_attach_t atkbdc_ebus_attach;
static device_method_t atkbdc_ebus_methods[] = {
DEVMETHOD(device_probe, atkbdc_ebus_probe),
DEVMETHOD(device_attach, atkbdc_ebus_attach),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
DEVMETHOD(bus_print_child, atkbdc_print_child),
DEVMETHOD(bus_read_ivar, atkbdc_read_ivar),
DEVMETHOD(bus_write_ivar, atkbdc_write_ivar),
DEVMETHOD(bus_get_resource_list,atkbdc_get_resource_list),
DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource),
DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource),
DEVMETHOD(bus_delete_resource, bus_generic_rl_delete_resource),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
{ 0, 0 }
};
static driver_t atkbdc_ebus_driver = {
ATKBDC_DRIVER_NAME,
atkbdc_ebus_methods,
sizeof(atkbdc_softc_t *),
};
DRIVER_MODULE(atkbdc, ebus, atkbdc_ebus_driver, atkbdc_devclass, 0, 0);
static int
atkbdc_ebus_probe(device_t dev)
{
struct resource *port0, *port1;
u_long count, start;
int error, rid;
if (strcmp(ofw_bus_get_name(dev), "8042") != 0)
return (ENXIO);
/*
* On AXi and AXmp boards the NS16550 (used to connect keyboard/
* mouse) share their IRQ lines with the i8042. Any IRQ activity
* (typically during attach) of the NS16550 used to connect the
* keyboard when actually the PS/2 keyboard is selected in OFW
* causes interaction with the OBP i8042 driver resulting in a
* hang and vice versa. As RS232 keyboards and mice obviously
* aren't meant to be used in parallel with PS/2 ones on these
* boards don't attach to the i8042 in case the PS/2 keyboard
* isn't selected in order to prevent such hangs.
* Note that it's not sufficient here to rely on the '8042' node
* only showing up when a PS/2 keyboard is actually connected as
* the user still might have adjusted the 'keyboard' alias to
* point to the RS232 keyboard.
*/
if ((!strcmp(sparc64_model, "SUNW,UltraAX-MP") ||
!strcmp(sparc64_model, "SUNW,UltraSPARC-IIi-Engine")) &&
OF_finddevice("keyboard") != ofw_bus_get_node(dev)) {
device_disable(dev);
return (ENXIO);
}
device_set_desc(dev, "Keyboard controller (i8042)");
/*
* The '8042' node has two identical 8 addresses wide resources
* which are apparently meant to be used one for the keyboard
* half and the other one for the mouse half. To simplify matters
* we use one for the command/data port resource and the other
* one for the status port resource as the atkbdc(4) back-end
* expects two struct resource rather than two bus space handles.
*/
rid = 0;
if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count) != 0) {
device_printf(dev,
"cannot determine command/data port resource\n");
return (ENXIO);
}
port0 = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, start, start, 1,
RF_ACTIVE);
if (port0 == NULL) {
device_printf(dev,
"cannot allocate command/data port resource\n");
return (ENXIO);
}
rid = 1;
if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count) != 0) {
device_printf(dev, "cannot determine status port resource\n");
error = ENXIO;
goto fail_port0;
}
start += KBD_STATUS_PORT;
port1 = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, start, start, 1,
RF_ACTIVE);
if (port1 == NULL) {
device_printf(dev, "cannot allocate status port resource\n");
error = ENXIO;
goto fail_port0;
}
error = atkbdc_probe_unit(device_get_unit(dev), port0, port1);
if (error != 0)
device_printf(dev, "atkbdc_porbe_unit failed\n");
bus_release_resource(dev, SYS_RES_MEMORY, 1, port1);
fail_port0:
bus_release_resource(dev, SYS_RES_MEMORY, 0, port0);
return (error);
}
static int
atkbdc_ebus_attach(device_t dev)
{
atkbdc_softc_t *sc;
atkbdc_device_t *adi;
device_t cdev;
phandle_t child;
u_long count, intr, start;
int children, error, rid, unit;
char *cname, *dname;
unit = device_get_unit(dev);
sc = *(atkbdc_softc_t **)device_get_softc(dev);
if (sc == NULL) {
/*
* We have to maintain two copies of the kbdc_softc struct,
* as the low-level console needs to have access to the
* keyboard controller before kbdc is probed and attached.
* kbdc_soft[] contains the default entry for that purpose.
* See atkbdc.c. XXX
*/
sc = atkbdc_get_softc(unit);
if (sc == NULL)
return (ENOMEM);
device_set_softc(dev, sc);
}
rid = 0;
if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count) != 0) {
device_printf(dev,
"cannot determine command/data port resource\n");
return (ENXIO);
}
sc->retry = 5000;
sc->port0 = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, start, start,
1, RF_ACTIVE);
if (sc->port0 == NULL) {
device_printf(dev,
"cannot allocate command/data port resource\n");
return (ENXIO);
}
rid = 1;
if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count) != 0) {
device_printf(dev, "cannot determine status port resource\n");
error = ENXIO;
goto fail_port0;
}
start += KBD_STATUS_PORT;
sc->port1 = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, start, start,
1, RF_ACTIVE);
if (sc->port1 == NULL) {
device_printf(dev, "cannot allocate status port resource\n");
error = ENXIO;
goto fail_port0;
}
error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1);
if (error != 0) {
device_printf(dev, "atkbdc_attach_unit failed\n");
goto fail_port1;
}
/* Attach children. */
children = 0;
for (child = OF_child(ofw_bus_get_node(dev)); child != 0;
child = OF_peer(child)) {
if ((OF_getprop_alloc(child, "name", 1, (void **)&cname)) == -1)
continue;
if (children >= 2) {
device_printf(dev,
"<%s>: only two children per 8042 supported\n",
cname);
free(cname, M_OFWPROP);
continue;
}
adi = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV,
M_NOWAIT | M_ZERO);
if (adi == NULL) {
device_printf(dev, "<%s>: malloc failed\n", cname);
free(cname, M_OFWPROP);
continue;
}
if (strcmp(cname, "kb_ps2") == 0) {
adi->rid = KBDC_RID_KBD;
dname = ATKBD_DRIVER_NAME;
} else if (strcmp(cname, "kdmouse") == 0) {
adi->rid = KBDC_RID_AUX;
dname = PSM_DRIVER_NAME;
} else {
device_printf(dev, "<%s>: unknown device\n", cname);
free(adi, M_ATKBDDEV);
free(cname, M_OFWPROP);
continue;
}
intr = bus_get_resource_start(dev, SYS_RES_IRQ, adi->rid);
if (intr == 0) {
device_printf(dev,
"<%s>: cannot determine interrupt resource\n",
cname);
free(adi, M_ATKBDDEV);
free(cname, M_OFWPROP);
continue;
}
resource_list_init(&adi->resources);
resource_list_add(&adi->resources, SYS_RES_IRQ, adi->rid,
intr, intr, 1);
if ((cdev = device_add_child(dev, dname, -1)) == NULL) {
device_printf(dev, "<%s>: device_add_child failed\n",
cname);
resource_list_free(&adi->resources);
free(adi, M_ATKBDDEV);
free(cname, M_OFWPROP);
continue;
}
device_set_ivars(cdev, adi);
children++;
}
error = bus_generic_attach(dev);
if (error != 0) {
device_printf(dev, "bus_generic_attach failed\n");
goto fail_port1;
}
return (0);
fail_port1:
bus_release_resource(dev, SYS_RES_MEMORY, 1, sc->port1);
fail_port0:
bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->port0);
return (error);
}