diff options
Diffstat (limited to 'sys/dev/pcf/envctrl.c')
| -rw-r--r-- | sys/dev/pcf/envctrl.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/sys/dev/pcf/envctrl.c b/sys/dev/pcf/envctrl.c deleted file mode 100644 index 1d57b36e000e..000000000000 --- a/sys/dev/pcf/envctrl.c +++ /dev/null @@ -1,194 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-2-Clause-FreeBSD - * - * Copyright (c) 2004 Joerg Wunsch - * - * derived from sys/i386/isa/pcf.c which is: - * - * Copyright (c) 1998 Nicolas Souchu, Marc Bouget - * 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("$FreeBSD$"); - -/* - * Device specific driver for the SUNW,envctrl device found on some - * UltraSPARC Sun systems. This device is a Philips PCF8584 sitting - * on the Ebus2. - */ - -#include <sys/param.h> -#include <sys/bus.h> -#include <sys/conf.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/module.h> -#include <sys/mutex.h> -#include <sys/resource.h> -#include <sys/systm.h> -#include <sys/uio.h> - -#include <dev/ofw/ofw_bus.h> - -#include <machine/bus.h> -#include <machine/resource.h> - -#include <sys/rman.h> - -#include <dev/iicbus/iicbus.h> -#include <dev/iicbus/iiconf.h> -#include <dev/pcf/pcfvar.h> -#include "iicbus_if.h" - -#undef PCF_DEFAULT_ADDR -#define PCF_DEFAULT_ADDR 0x55 /* SUNW,pcf default */ - -static int envctrl_probe(device_t); -static int envctrl_attach(device_t); -static int envctrl_detach(device_t); - -static device_method_t envctrl_methods[] = { - /* device interface */ - DEVMETHOD(device_probe, envctrl_probe), - DEVMETHOD(device_attach, envctrl_attach), - DEVMETHOD(device_detach, envctrl_detach), - - /* iicbus interface */ - DEVMETHOD(iicbus_callback, iicbus_null_callback), - DEVMETHOD(iicbus_repeated_start, pcf_repeated_start), - DEVMETHOD(iicbus_start, pcf_start), - DEVMETHOD(iicbus_stop, pcf_stop), - DEVMETHOD(iicbus_write, pcf_write), - DEVMETHOD(iicbus_read, pcf_read), - DEVMETHOD(iicbus_reset, pcf_rst_card), - { 0, 0 } -}; - -static devclass_t envctrl_devclass; - -static driver_t envctrl_driver = { - "envctrl", - envctrl_methods, - sizeof(struct pcf_softc), -}; - -static int -envctrl_probe(device_t dev) -{ - - if (strcmp("SUNW,envctrl", ofw_bus_get_name(dev)) == 0) { - device_set_desc(dev, "EBus SUNW,envctrl"); - return (0); - } - return (ENXIO); -} - -static int -envctrl_attach(device_t dev) -{ - struct pcf_softc *sc; - int rv = ENXIO; - - sc = DEVTOSOFTC(dev); - mtx_init(&sc->pcf_lock, device_get_nameunit(dev), "pcf", MTX_DEF); - - /* IO port is mandatory */ - sc->res_ioport = bus_alloc_resource_any(dev, SYS_RES_MEMORY, - &sc->rid_ioport, RF_ACTIVE); - if (sc->res_ioport == 0) { - device_printf(dev, "cannot reserve I/O port range\n"); - goto error; - } - - sc->pcf_flags = device_get_flags(dev); - - if (!(sc->pcf_flags & IIC_POLLED)) { - sc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->rid_irq, - RF_ACTIVE); - if (sc->res_irq == 0) { - device_printf(dev, "can't reserve irq, polled mode.\n"); - sc->pcf_flags |= IIC_POLLED; - } - } - - /* reset the chip */ - pcf_rst_card(dev, IIC_FASTEST, PCF_DEFAULT_ADDR, NULL); - - rv = bus_setup_intr(dev, sc->res_irq, - INTR_TYPE_NET | INTR_MPSAFE /* | INTR_ENTROPY */, - NULL, pcf_intr, sc, &sc->intr_cookie); - if (rv) { - device_printf(dev, "could not setup IRQ\n"); - goto error; - } - - if ((sc->iicbus = device_add_child(dev, "iicbus", -1)) == NULL) - device_printf(dev, "could not allocate iicbus instance\n"); - - /* probe and attach the iicbus */ - bus_generic_attach(dev); - - return (0); - -error: - if (sc->res_irq != 0) { - bus_release_resource(dev, SYS_RES_IRQ, sc->rid_irq, - sc->res_irq); - } - if (sc->res_ioport != 0) { - bus_release_resource(dev, SYS_RES_MEMORY, sc->rid_ioport, - sc->res_ioport); - } - mtx_destroy(&sc->pcf_lock); - return (rv); -} - -static int -envctrl_detach(device_t dev) -{ - struct pcf_softc *sc; - int rv; - - sc = DEVTOSOFTC(dev); - - if ((rv = bus_generic_detach(dev)) != 0) - return (rv); - - if ((rv = device_delete_child(dev, sc->iicbus)) != 0) - return (rv); - - if (sc->res_irq != 0) { - bus_teardown_intr(dev, sc->res_irq, sc->intr_cookie); - bus_release_resource(dev, SYS_RES_IRQ, sc->rid_irq, sc->res_irq); - } - - bus_release_resource(dev, SYS_RES_MEMORY, sc->rid_ioport, sc->res_ioport); - mtx_destroy(&sc->pcf_lock); - - return (0); -} - -DRIVER_MODULE(envctrl, ebus, envctrl_driver, envctrl_devclass, 0, 0); -DRIVER_MODULE(iicbus, envctrl, iicbus_driver, iicbus_devclass, 0, 0); |