hw/audio/soundhw.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "qemu/osdep.h"
  25 #include "qemu/option.h"
  26 #include "qemu/help_option.h"
  27 #include "qemu/error-report.h"
  28 #include "qom/object.h"
  29 #include "hw/isa/isa.h"
  30 #include "hw/pci/pci.h"
  31 #include "hw/audio/soundhw.h"
  32
  33 struct soundhw {
  34     const char *name;
  35     const char *descr;
  36     const char *typename;
  37     int enabled;
  38     int isa;
  39     union {
  40         int (*init_isa) (ISABus *bus);
  41         int (*init_pci) (PCIBus *bus);
  42     } init;
  43 };
  44
  45 static struct soundhw soundhw[9];
  46 static int soundhw_count;
  47
  48 void isa_register_soundhw(const char *name, const char *descr,
  49                           int (*init_isa)(ISABus *bus))
  50 {
  51     assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
  52     soundhw[soundhw_count].name = name;
  53     soundhw[soundhw_count].descr = descr;
  54     soundhw[soundhw_count].isa = 1;
  55     soundhw[soundhw_count].init.init_isa = init_isa;
  56     soundhw_count++;
  57 }
  58
  59 void pci_register_soundhw(const char *name, const char *descr,
  60                           int (*init_pci)(PCIBus *bus))
  61 {
  62     assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
  63     soundhw[soundhw_count].name = name;
  64     soundhw[soundhw_count].descr = descr;
  65     soundhw[soundhw_count].isa = 0;
  66     soundhw[soundhw_count].init.init_pci = init_pci;
  67     soundhw_count++;
  68 }
  69
  70 void deprecated_register_soundhw(const char *name, const char *descr,
  71                                  int isa, const char *typename)
  72 {
  73     assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
  74     soundhw[soundhw_count].name = name;
  75     soundhw[soundhw_count].descr = descr;
  76     soundhw[soundhw_count].isa = isa;
  77     soundhw[soundhw_count].typename = typename;
  78     soundhw_count++;
  79 }
  80
  81 void select_soundhw(const char *optarg)
  82 {
  83     struct soundhw *c;
  84
  85     if (is_help_option(optarg)) {
  86     show_valid_cards:
  87
  88         if (soundhw_count) {
  89              printf("Valid sound card names (comma separated):\n");
  90              for (c = soundhw; c->name; ++c) {
  91                  printf ("%-11s %s\n", c->name, c->descr);
  92              }
  93              printf("\n-soundhw all will enable all of the above\n");
  94         } else {
  95              printf("Machine has no user-selectable audio hardware "
  96                     "(it may or may not have always-present audio hardware).\n");
  97         }
  98         exit(!is_help_option(optarg));
  99     }
 100     else {
 101         size_t l;
 102         const char *p;
 103         char *e;
 104         int bad_card = 0;
 105
 106         if (!strcmp(optarg, "all")) {
 107             for (c = soundhw; c->name; ++c) {
 108                 c->enabled = 1;
 109             }
 110             return;
 111         }
 112
 113         p = optarg;
 114         while (*p) {
 115             e = strchr(p, ',');
 116             l = !e ? strlen(p) : (size_t) (e - p);
 117
 118             for (c = soundhw; c->name; ++c) {
 119                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 120                     c->enabled = 1;
 121                     break;
 122                 }
 123             }
 124
 125             if (!c->name) {
 126                 if (l > 80) {
 127                     error_report("Unknown sound card name (too big to show)");
 128                 }
 129                 else {
 130                     error_report("Unknown sound card name `%.*s'",
 131                                  (int) l, p);
 132                 }
 133                 bad_card = 1;
 134             }
 135             p += l + (e != NULL);
 136         }
 137
 138         if (bad_card) {
 139             goto show_valid_cards;
 140         }
 141     }
 142 }
 143
 144 void soundhw_init(void)
 145 {
 146     struct soundhw *c;
 147     ISABus *isa_bus = (ISABus *) object_resolve_path_type("", TYPE_ISA_BUS, NULL);
 148     PCIBus *pci_bus = (PCIBus *) object_resolve_path_type("", TYPE_PCI_BUS, NULL);
 149
 150     for (c = soundhw; c->name; ++c) {
 151         if (c->enabled) {
 152             if (c->typename) {
 153                 warn_report("'-soundhw %s' is deprecated, "
 154                             "please use '-device %s' instead",
 155                             c->name, c->typename);
 156                 if (c->isa) {
 157                     isa_create_simple(isa_bus, c->typename);
 158                 } else {
 159                     pci_create_simple(pci_bus, -1, c->typename);
 160                 }
 161             } else if (c->isa) {
 162                 if (!isa_bus) {
 163                     error_report("ISA bus not available for %s", c->name);
 164                     exit(1);
 165                 }
 166                 c->init.init_isa(isa_bus);
 167             } else {
 168                 if (!pci_bus) {
 169                     error_report("PCI bus not available for %s", c->name);
 170                     exit(1);
 171                 }
 172                 c->init.init_pci(pci_bus);
 173             }
 174         }
 175     }
 176 }
 177