qemu-e2k/hw/audio/soundhw.c

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/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qemu/option.h"
#include "qemu/help_option.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "qom/object.h"
#include "hw/qdev-properties.h"
#include "hw/isa/isa.h"
#include "hw/pci/pci.h"
#include "hw/audio/soundhw.h"
struct soundhw {
const char *name;
const char *descr;
const char *typename;
int isa;
int (*init_pci) (PCIBus *bus, const char *audiodev);
};
static struct soundhw soundhw[9];
static int soundhw_count;
void pci_register_soundhw(const char *name, const char *descr,
int (*init_pci)(PCIBus *bus, const char *audiodev))
{
assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
soundhw[soundhw_count].name = name;
soundhw[soundhw_count].descr = descr;
soundhw[soundhw_count].isa = 0;
soundhw[soundhw_count].init_pci = init_pci;
soundhw_count++;
}
void deprecated_register_soundhw(const char *name, const char *descr,
int isa, const char *typename)
{
assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
soundhw[soundhw_count].name = name;
soundhw[soundhw_count].descr = descr;
soundhw[soundhw_count].isa = isa;
soundhw[soundhw_count].typename = typename;
soundhw_count++;
}
void show_valid_soundhw(void)
{
struct soundhw *c;
if (soundhw_count) {
printf("Valid sound card names (comma separated):\n");
for (c = soundhw; c->name; ++c) {
printf ("%-11s %s\n", c->name, c->descr);
}
} else {
printf("Machine has no user-selectable audio hardware "
"(it may or may not have always-present audio hardware).\n");
}
}
static struct soundhw *selected = NULL;
static const char *audiodev_id;
void select_soundhw(const char *optarg, const char *audiodev)
{
struct soundhw *c;
if (selected) {
error_setg(&error_fatal, "only one -soundhw option is allowed");
}
for (c = soundhw; c->name; ++c) {
if (g_str_equal(c->name, optarg)) {
selected = c;
audiodev_id = audiodev;
break;
}
}
if (!c->name) {
error_report("Unknown sound card name `%s'", optarg);
show_valid_soundhw();
exit(1);
}
}
void soundhw_init(void)
{
struct soundhw *c = selected;
ISABus *isa_bus = (ISABus *) object_resolve_path_type("", TYPE_ISA_BUS, NULL);
PCIBus *pci_bus = (PCIBus *) object_resolve_path_type("", TYPE_PCI_BUS, NULL);
BusState *bus;
if (!c) {
return;
}
if (c->isa) {
if (!isa_bus) {
error_report("ISA bus not available for %s", c->name);
exit(1);
}
bus = BUS(isa_bus);
} else {
if (!pci_bus) {
error_report("PCI bus not available for %s", c->name);
exit(1);
}
bus = BUS(pci_bus);
}
if (c->typename) {
DeviceState *dev = qdev_new(c->typename);
qdev_prop_set_string(dev, "audiodev", audiodev_id);
qdev_realize_and_unref(dev, bus, &error_fatal);
} else {
assert(!c->isa);
c->init_pci(pci_bus, audiodev_id);
}
}