1 /* 2 * QTest testcase for AC97 3 * 4 * Copyright (c) 2014 SUSE LINUX Products GmbH 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 */ 9 10 #include "qemu/osdep.h" 11 #include "libqtest.h" 12 #include "qemu/module.h" 13 #include "libqos/qgraph.h" 14 #include "libqos/pci.h" 15 16 typedef struct QAC97 QAC97; 17 18 struct QAC97 { 19 QOSGraphObject obj; 20 QPCIDevice dev; 21 }; 22 23 static void *ac97_get_driver(void *obj, const char *interface) 24 { 25 QAC97 *ac97 = obj; 26 27 if (!g_strcmp0(interface, "pci-device")) { 28 return &ac97->dev; 29 } 30 31 fprintf(stderr, "%s not present in ac97\n", interface); 32 g_assert_not_reached(); 33 } 34 35 static void *ac97_create(void *pci_bus, QGuestAllocator *alloc, void *addr) 36 { 37 QAC97 *ac97 = g_new0(QAC97, 1); 38 QPCIBus *bus = pci_bus; 39 40 qpci_device_init(&ac97->dev, bus, addr); 41 ac97->obj.get_driver = ac97_get_driver; 42 return &ac97->obj; 43 } 44 45 /* 46 * This is rather a test of the audio subsystem and not an AC97 test. Test if 47 * the audio subsystem can handle a 44100/1 upsample ratio. For some time this 48 * used to trigger QEMU aborts. 49 */ 50 static void ac97_playback_upsample(void *obj, void *data, QGuestAllocator *alloc) 51 { 52 QAC97 *ac97 = obj; 53 QPCIDevice *dev = &ac97->dev; 54 QPCIBar bar0; 55 56 qpci_device_enable(dev); 57 bar0 = qpci_iomap(dev, 0, NULL); 58 /* IOBAR0 offset 0x2c: PCM Front DAC Rate */ 59 qpci_io_writew(dev, bar0, 0x2c, 0x1); 60 } 61 62 /* 63 * This test is similar to the playback upsample test. QEMU shouldn't abort if 64 * asked for a 1/44100 downsample ratio. 65 */ 66 static void ac97_record_downsample(void *obj, void *data, QGuestAllocator *alloc) 67 { 68 QAC97 *ac97 = obj; 69 QPCIDevice *dev = &ac97->dev; 70 QPCIBar bar0; 71 72 qpci_device_enable(dev); 73 bar0 = qpci_iomap(dev, 0, NULL); 74 /* IOBAR0 offset 0x32: PCM L/R ADC Rate */ 75 qpci_io_writew(dev, bar0, 0x32, 0x1); 76 } 77 78 static void ac97_register_nodes(void) 79 { 80 QOSGraphEdgeOptions opts = { 81 .extra_device_opts = "addr=04.0,audiodev=snd0", 82 .after_cmd_line = "-audiodev none,id=snd0" 83 ",out.frequency=44100,in.frequency=44100", 84 }; 85 add_qpci_address(&opts, &(QPCIAddress) { .devfn = QPCI_DEVFN(4, 0) }); 86 87 qos_node_create_driver("AC97", ac97_create); 88 qos_node_produces("AC97", "pci-device"); 89 qos_node_consumes("AC97", "pci-bus", &opts); 90 91 qos_add_test("playback_upsample", "AC97", ac97_playback_upsample, NULL); 92 qos_add_test("record_downsample", "AC97", ac97_record_downsample, NULL); 93 } 94 95 libqos_init(ac97_register_nodes); 96