| 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); |