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     int (*init_pci) (PCIBus *bus);
  40 };
  41
  42 static struct soundhw soundhw[9];
  43 static int soundhw_count;
  44
  45 void pci_register_soundhw(const char *name, const char *descr,
  46                           int (*init_pci)(PCIBus *bus))
  47 {
  48     assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
  49     soundhw[soundhw_count].name = name;
  50     soundhw[soundhw_count].descr = descr;
  51     soundhw[soundhw_count].isa = 0;
  52     soundhw[soundhw_count].init_pci = init_pci;
  53     soundhw_count++;
  54 }
  55
  56 void deprecated_register_soundhw(const char *name, const char *descr,
  57                                  int isa, const char *typename)
  58 {
  59     assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
  60     soundhw[soundhw_count].name = name;
  61     soundhw[soundhw_count].descr = descr;
  62     soundhw[soundhw_count].isa = isa;
  63     soundhw[soundhw_count].typename = typename;
  64     soundhw_count++;
  65 }
  66
  67 void select_soundhw(const char *optarg)
  68 {
  69     struct soundhw *c;
  70
  71     if (is_help_option(optarg)) {
  72     show_valid_cards:
  73
  74         if (soundhw_count) {
  75              printf("Valid sound card names (comma separated):\n");
  76              for (c = soundhw; c->name; ++c) {
  77                  printf ("%-11s %s\n", c->name, c->descr);
  78              }
  79              printf("\n-soundhw all will enable all of the above\n");
  80         } else {
  81              printf("Machine has no user-selectable audio hardware "
  82                     "(it may or may not have always-present audio hardware).\n");
  83         }
  84         exit(!is_help_option(optarg));
  85     }
  86     else {
  87         size_t l;
  88         const char *p;
  89         char *e;
  90         int bad_card = 0;
  91
  92         if (!strcmp(optarg, "all")) {
  93             for (c = soundhw; c->name; ++c) {
  94                 c->enabled = 1;
  95             }
  96             return;
  97         }
  98
  99         p = optarg;
 100         while (*p) {
 101             e = strchr(p, ',');
 102             l = !e ? strlen(p) : (size_t) (e - p);
 103
 104             for (c = soundhw; c->name; ++c) {
 105                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 106                     c->enabled = 1;
 107                     break;
 108                 }
 109             }
 110
 111             if (!c->name) {
 112                 if (l > 80) {
 113                     error_report("Unknown sound card name (too big to show)");
 114                 }
 115                 else {
 116                     error_report("Unknown sound card name `%.*s'",
 117                                  (int) l, p);
 118                 }
 119                 bad_card = 1;
 120             }
 121             p += l + (e != NULL);
 122         }
 123
 124         if (bad_card) {
 125             goto show_valid_cards;
 126         }
 127     }
 128 }
 129
 130 void soundhw_init(void)
 131 {
 132     struct soundhw *c;
 133     ISABus *isa_bus = (ISABus *) object_resolve_path_type("", TYPE_ISA_BUS, NULL);
 134     PCIBus *pci_bus = (PCIBus *) object_resolve_path_type("", TYPE_PCI_BUS, NULL);
 135
 136     for (c = soundhw; c->name; ++c) {
 137         if (c->enabled) {
 138             if (c->typename) {
 139                 warn_report("'-soundhw %s' is deprecated, "
 140                             "please use '-device %s' instead",
 141                             c->name, c->typename);
 142                 if (c->isa) {
 143                     isa_create_simple(isa_bus, c->typename);
 144                 } else {
 145                     pci_create_simple(pci_bus, -1, c->typename);
 146                 }
 147             } else {
 148                 assert(!c->isa);
 149                 if (!pci_bus) {
 150                     error_report("PCI bus not available for %s", c->name);
 151                     exit(1);
 152                 }
 153                 c->init_pci(pci_bus);
 154             }
 155         }
 156     }
 157 }
 158