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/help_option.h"
26 #include "qemu/error-report.h"
27 #include "qom/object.h"
28 #include "hw/isa/isa.h"
29 #include "hw/pci/pci.h"
30 #include "hw/audio/soundhw.h"
31
32 struct soundhw {
33 const char *name;
34 const char *descr;
35 int enabled;
36 int isa;
37 union {
38 int (*init_isa) (ISABus *bus);
39 int (*init_pci) (PCIBus *bus);
40 } init;
41 };
42
43 static struct soundhw soundhw[9];
44 static int soundhw_count;
45
isa_register_soundhw(const char * name,const char * descr,int (* init_isa)(ISABus * bus))46 void isa_register_soundhw(const char *name, const char *descr,
47 int (*init_isa)(ISABus *bus))
48 {
49 assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
50 soundhw[soundhw_count].name = name;
51 soundhw[soundhw_count].descr = descr;
52 soundhw[soundhw_count].isa = 1;
53 soundhw[soundhw_count].init.init_isa = init_isa;
54 soundhw_count++;
55 }
56
pci_register_soundhw(const char * name,const char * descr,int (* init_pci)(PCIBus * bus))57 void pci_register_soundhw(const char *name, const char *descr,
58 int (*init_pci)(PCIBus *bus))
59 {
60 assert(soundhw_count < ARRAY_SIZE(soundhw) - 1);
61 soundhw[soundhw_count].name = name;
62 soundhw[soundhw_count].descr = descr;
63 soundhw[soundhw_count].isa = 0;
64 soundhw[soundhw_count].init.init_pci = init_pci;
65 soundhw_count++;
66 }
67
select_soundhw(const char * optarg)68 void select_soundhw(const char *optarg)
69 {
70 struct soundhw *c;
71
72 if (is_help_option(optarg)) {
73 show_valid_cards:
74
75 if (soundhw_count) {
76 printf("Valid sound card names (comma separated):\n");
77 for (c = soundhw; c->name; ++c) {
78 printf ("%-11s %s\n", c->name, c->descr);
79 }
80 printf("\n-soundhw all will enable all of the above\n");
81 } else {
82 printf("Machine has no user-selectable audio hardware "
83 "(it may or may not have always-present audio hardware).\n");
84 }
85 exit(!is_help_option(optarg));
86 }
87 else {
88 size_t l;
89 const char *p;
90 char *e;
91 int bad_card = 0;
92
93 if (!strcmp(optarg, "all")) {
94 for (c = soundhw; c->name; ++c) {
95 c->enabled = 1;
96 }
97 return;
98 }
99
100 p = optarg;
101 while (*p) {
102 e = strchr(p, ',');
103 l = !e ? strlen(p) : (size_t) (e - p);
104
105 for (c = soundhw; c->name; ++c) {
106 if (!strncmp(c->name, p, l) && !c->name[l]) {
107 c->enabled = 1;
108 break;
109 }
110 }
111
112 if (!c->name) {
113 if (l > 80) {
114 error_report("Unknown sound card name (too big to show)");
115 }
116 else {
117 error_report("Unknown sound card name `%.*s'",
118 (int) l, p);
119 }
120 bad_card = 1;
121 }
122 p += l + (e != NULL);
123 }
124
125 if (bad_card) {
126 goto show_valid_cards;
127 }
128 }
129 }
130
soundhw_init(void)131 void soundhw_init(void)
132 {
133 struct soundhw *c;
134 ISABus *isa_bus = (ISABus *) object_resolve_path_type("", TYPE_ISA_BUS, NULL);
135 PCIBus *pci_bus = (PCIBus *) object_resolve_path_type("", TYPE_PCI_BUS, NULL);
136
137 for (c = soundhw; c->name; ++c) {
138 if (c->enabled) {
139 if (c->isa) {
140 if (!isa_bus) {
141 error_report("ISA bus not available for %s", c->name);
142 exit(1);
143 }
144 c->init.init_isa(isa_bus);
145 } else {
146 if (!pci_bus) {
147 error_report("PCI bus not available for %s", c->name);
148 exit(1);
149 }
150 c->init.init_pci(pci_bus);
151 }
152 }
153 }
154 }
155
156