Index: uspace/drv/rootvirt/Makefile =================================================================== --- uspace/drv/rootvirt/Makefile (revision 6f9e7feab0fd4bec18b0d862a2383558ef34a61f) +++ uspace/drv/rootvirt/Makefile (revision 6f9e7feab0fd4bec18b0d862a2383558ef34a61f) @@ -0,0 +1,37 @@ +# +# Copyright (c) 2010 Vojtech Horky +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# - Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# - 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. +# - The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. +# + +USPACE_PREFIX = ../.. +LIBS = $(LIBDRV_PREFIX)/libdrv.a +EXTRA_CFLAGS += -I$(LIBDRV_PREFIX)/include +BINARY = rootvirt + +SOURCES = \ + rootvirt.c + +include $(USPACE_PREFIX)/Makefile.common Index: uspace/drv/rootvirt/devices.def =================================================================== --- uspace/drv/rootvirt/devices.def (revision 6f9e7feab0fd4bec18b0d862a2383558ef34a61f) +++ uspace/drv/rootvirt/devices.def (revision 6f9e7feab0fd4bec18b0d862a2383558ef34a61f) @@ -0,0 +1,5 @@ +/* + * Add list of virtual devices you want to launch driver for here. + * + * Unless the list is empty, the last item shall be followed by a comma. + */ Index: uspace/drv/rootvirt/rootvirt.c =================================================================== --- uspace/drv/rootvirt/rootvirt.c (revision 6f9e7feab0fd4bec18b0d862a2383558ef34a61f) +++ uspace/drv/rootvirt/rootvirt.c (revision 6f9e7feab0fd4bec18b0d862a2383558ef34a61f) @@ -0,0 +1,136 @@ +/* + * Copyright (c) 2010 Vojtech Horky + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - 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. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. + */ + +/** + * @defgroup rootvirt Root device driver for virtual devices. + * @{ + */ + +/** @file + */ + +#include +#include +#include +#include +#include + +#define NAME "rootvirt" + +/** Virtual device entry. */ +typedef struct { + /** Device name. */ + const char *name; + /** Device match id. */ + const char *match_id; +} virtual_device_t; + +/** List of existing virtual devices. */ +virtual_device_t virtual_devices[] = { +#include "devices.def" + /* Terminating item. */ + { + .name = NULL, + .match_id = NULL + } +}; + +static int add_device(device_t *dev); + +static driver_ops_t rootvirt_ops = { + .add_device = &add_device +}; + +static driver_t rootvirt_driver = { + .name = NAME, + .driver_ops = &rootvirt_ops +}; + +/** Add child device. + * + * @param parent Parent device. + * @param virt_dev Virtual device to add. + * @return Error code. + */ +static int add_child(device_t *parent, virtual_device_t *virt_dev) +{ + printf(NAME ": registering child device `%s' (match \"%s\")\n", + virt_dev->name, virt_dev->match_id); + + int rc = child_device_register_wrapper(parent, virt_dev->name, + virt_dev->match_id, 10); + + if (rc == EOK) { + printf(NAME ": registered child device `%s'\n", + virt_dev->name); + } else { + printf(NAME ": failed to register child device `%s': %s\n", + virt_dev->name, str_error(rc)); + } + + return rc; +} + +static int add_device(device_t *dev) +{ + static int instances = 0; + + /* + * Allow only single instance of root virtual device. + */ + instances++; + if (instances > 1) { + return ELIMIT; + } + + printf(NAME ": add_device(name=\"%s\", handle=%d)\n", + dev->name, dev->handle); + + /* + * Go through all virtual devices and try to add them. + * We silently ignore failures. + */ + virtual_device_t *virt_dev = virtual_devices; + while (virt_dev->name != NULL) { + (void) add_child(dev, virt_dev); + virt_dev++; + } + + return EOK; +} + +int main(int argc, char *argv[]) +{ + printf(NAME ": HelenOS virtual devices root driver\n"); + return driver_main(&rootvirt_driver); +} + +/** + * @} + */ + Index: uspace/drv/rootvirt/rootvirt.ma =================================================================== --- uspace/drv/rootvirt/rootvirt.ma (revision 6f9e7feab0fd4bec18b0d862a2383558ef34a61f) +++ uspace/drv/rootvirt/rootvirt.ma (revision 6f9e7feab0fd4bec18b0d862a2383558ef34a61f) @@ -0,0 +1,1 @@ +10 rootvirt