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Diffstat (limited to 'sys/dev/smbus/smbus.c')
-rw-r--r-- | sys/dev/smbus/smbus.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/sys/dev/smbus/smbus.c b/sys/dev/smbus/smbus.c new file mode 100644 index 0000000..c55399d --- /dev/null +++ b/sys/dev/smbus/smbus.c @@ -0,0 +1,118 @@ +/*- + * Copyright (c) 1998, 2001 Nicolas Souchu + * 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. + * + * $FreeBSD$ + * + */ +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/bus.h> + +#include <dev/smbus/smbconf.h> +#include <dev/smbus/smbus.h> + +/* + * Autoconfiguration and support routines for the Philips serial I2C bus + */ + +#define DEVTOSMBUS(dev) ((struct smbus_device*)device_get_ivars(dev)) + +static devclass_t smbus_devclass; + +/* + * Device methods + */ +static int smbus_probe(device_t); +static int smbus_attach(device_t); +static int smbus_add_child(device_t dev, int order, const char *name, int unit); + +static device_method_t smbus_methods[] = { + /* device interface */ + DEVMETHOD(device_probe, smbus_probe), + DEVMETHOD(device_attach, smbus_attach), + DEVMETHOD(device_detach, bus_generic_detach), + + /* bus interface */ + DEVMETHOD(bus_add_child, smbus_add_child), + DEVMETHOD(bus_print_child, bus_generic_print_child), + + { 0, 0 } +}; + +static driver_t smbus_driver = { + "smbus", + smbus_methods, + sizeof(struct smbus_softc), +}; + +/* + * At 'probe' time, we add all the devices which we know about to the + * bus. The generic attach routine will probe and attach them if they + * are alive. + */ +static int +smbus_probe(device_t dev) +{ + device_set_desc(dev, "System Management Bus"); + + return (0); +} + +static int +smbus_attach(device_t dev) +{ + device_add_child(dev, NULL, -1); + bus_generic_attach(dev); + + return (0); +} + +static int +smbus_add_child(device_t dev, int order, const char *name, int unit) +{ + device_add_child_ordered(dev, order, name, unit); + + bus_generic_attach(dev); + + return (0); +} + +void +smbus_generic_intr(device_t dev, u_char devaddr, char low, char high) +{ + return; +} + +DRIVER_MODULE(smbus, iicsmb, smbus_driver, smbus_devclass, 0, 0); +DRIVER_MODULE(smbus, bktr, smbus_driver, smbus_devclass, 0, 0); +DRIVER_MODULE(smbus, intsmb, smbus_driver, smbus_devclass, 0, 0); +DRIVER_MODULE(smbus, alpm, smbus_driver, smbus_devclass, 0, 0); +DRIVER_MODULE(smbus, ichsmb, smbus_driver, smbus_devclass, 0, 0); +DRIVER_MODULE(smbus, amdpm, smbus_driver, smbus_devclass, 0, 0); +DRIVER_MODULE(smbus, viapropm, smbus_driver, smbus_devclass, 0, 0); +DRIVER_MODULE(smbus, nfpm, smbus_driver, smbus_devclass, 0, 0); +MODULE_VERSION(smbus, SMBUS_MODVER); |