diff options
Diffstat (limited to 'hw/audio/soundhw.c')
| -rw-r--r-- | hw/audio/soundhw.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/hw/audio/soundhw.c b/hw/audio/soundhw.c new file mode 100644 index 0000000000..5e96b73c81 --- /dev/null +++ b/hw/audio/soundhw.c @@ -0,0 +1,156 @@ +/* + * 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-common.h" +#include "qemu/help_option.h" +#include "qemu/error-report.h" +#include "qom/object.h" +#include "hw/isa/isa.h" +#include "hw/pci/pci.h" +#include "hw/audio/audio.h" + +struct soundhw { + const char *name; + const char *descr; + int enabled; + int isa; + union { + int (*init_isa) (ISABus *bus); + int (*init_pci) (PCIBus *bus); + } init; +}; + +static struct soundhw soundhw[9]; +static int soundhw_count; + +void isa_register_soundhw(const char *name, const char *descr, + int (*init_isa)(ISABus *bus)) +{ + assert(soundhw_count < ARRAY_SIZE(soundhw) - 1); + soundhw[soundhw_count].name = name; + soundhw[soundhw_count].descr = descr; + soundhw[soundhw_count].isa = 1; + soundhw[soundhw_count].init.init_isa = init_isa; + soundhw_count++; +} + +void pci_register_soundhw(const char *name, const char *descr, + int (*init_pci)(PCIBus *bus)) +{ + 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.init_pci = init_pci; + soundhw_count++; +} + +void select_soundhw(const char *optarg) +{ + struct soundhw *c; + + if (is_help_option(optarg)) { + show_valid_cards: + + 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); + } + printf("\n-soundhw all will enable all of the above\n"); + } else { + printf("Machine has no user-selectable audio hardware " + "(it may or may not have always-present audio hardware).\n"); + } + exit(!is_help_option(optarg)); + } + else { + size_t l; + const char *p; + char *e; + int bad_card = 0; + + if (!strcmp(optarg, "all")) { + for (c = soundhw; c->name; ++c) { + c->enabled = 1; + } + return; + } + + p = optarg; + while (*p) { + e = strchr(p, ','); + l = !e ? strlen(p) : (size_t) (e - p); + + for (c = soundhw; c->name; ++c) { + if (!strncmp(c->name, p, l) && !c->name[l]) { + c->enabled = 1; + break; + } + } + + if (!c->name) { + if (l > 80) { + error_report("Unknown sound card name (too big to show)"); + } + else { + error_report("Unknown sound card name `%.*s'", + (int) l, p); + } + bad_card = 1; + } + p += l + (e != NULL); + } + + if (bad_card) { + goto show_valid_cards; + } + } +} + +void audio_init(void) +{ + struct soundhw *c; + ISABus *isa_bus = (ISABus *) object_resolve_path_type("", TYPE_ISA_BUS, NULL); + PCIBus *pci_bus = (PCIBus *) object_resolve_path_type("", TYPE_PCI_BUS, NULL); + + for (c = soundhw; c->name; ++c) { + if (c->enabled) { + if (c->isa) { + if (!isa_bus) { + error_report("ISA bus not available for %s", c->name); + exit(1); + } + c->init.init_isa(isa_bus); + } else { + if (!pci_bus) { + error_report("PCI bus not available for %s", c->name); + exit(1); + } + c->init.init_pci(pci_bus); + } + } + } +} + |