hw: move audio devices to hw/audio/, configure via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 303 insertions, 0 deletions

diff --git a/hw/audio/marvell_88w8618.c b/hw/audio/marvell_88w8618.c
new file mode 100644
index 0000000000..f9b68fd311
--- /dev/null
+++ b/hw/audio/marvell_88w8618.c
@@ -0,0 +1,303 @@
+/*
+ * Marvell 88w8618 audio emulation extracted from
+ * Marvell MV88w8618 / Freecom MusicPal emulation.
+ *
+ * Copyright (c) 2008 Jan Kiszka
+ *
+ * This code is licensed under the GNU GPL v2.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+#include "hw/sysbus.h"
+#include "hw/hw.h"
+#include "hw/i2c/i2c.h"
+#include "hw/sysbus.h"
+#include "audio/audio.h"
+
+#define MP_AUDIO_SIZE           0x00001000
+
+/* Audio register offsets */
+#define MP_AUDIO_PLAYBACK_MODE  0x00
+#define MP_AUDIO_CLOCK_DIV      0x18
+#define MP_AUDIO_IRQ_STATUS     0x20
+#define MP_AUDIO_IRQ_ENABLE     0x24
+#define MP_AUDIO_TX_START_LO    0x28
+#define MP_AUDIO_TX_THRESHOLD   0x2C
+#define MP_AUDIO_TX_STATUS      0x38
+#define MP_AUDIO_TX_START_HI    0x40
+
+/* Status register and IRQ enable bits */
+#define MP_AUDIO_TX_HALF        (1 << 6)
+#define MP_AUDIO_TX_FULL        (1 << 7)
+
+/* Playback mode bits */
+#define MP_AUDIO_16BIT_SAMPLE   (1 << 0)
+#define MP_AUDIO_PLAYBACK_EN    (1 << 7)
+#define MP_AUDIO_CLOCK_24MHZ    (1 << 9)
+#define MP_AUDIO_MONO           (1 << 14)
+
+typedef struct mv88w8618_audio_state {
+    SysBusDevice busdev;
+    MemoryRegion iomem;
+    qemu_irq irq;
+    uint32_t playback_mode;
+    uint32_t status;
+    uint32_t irq_enable;
+    uint32_t phys_buf;
+    uint32_t target_buffer;
+    uint32_t threshold;
+    uint32_t play_pos;
+    uint32_t last_free;
+    uint32_t clock_div;
+    void *wm;
+} mv88w8618_audio_state;
+
+static void mv88w8618_audio_callback(void *opaque, int free_out, int free_in)
+{
+    mv88w8618_audio_state *s = opaque;
+    int16_t *codec_buffer;
+    int8_t buf[4096];
+    int8_t *mem_buffer;
+    int pos, block_size;
+
+    if (!(s->playback_mode & MP_AUDIO_PLAYBACK_EN)) {
+        return;
+    }
+    if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE) {
+        free_out <<= 1;
+    }
+    if (!(s->playback_mode & MP_AUDIO_MONO)) {
+        free_out <<= 1;
+    }
+    block_size = s->threshold / 2;
+    if (free_out - s->last_free < block_size) {
+        return;
+    }
+    if (block_size > 4096) {
+        return;
+    }
+    cpu_physical_memory_read(s->target_buffer + s->play_pos, (void *)buf,
+                             block_size);
+    mem_buffer = buf;
+    if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE) {
+        if (s->playback_mode & MP_AUDIO_MONO) {
+            codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
+            for (pos = 0; pos < block_size; pos += 2) {
+                *codec_buffer++ = *(int16_t *)mem_buffer;
+                *codec_buffer++ = *(int16_t *)mem_buffer;
+                mem_buffer += 2;
+            }
+        } else {
+            memcpy(wm8750_dac_buffer(s->wm, block_size >> 2),
+                   (uint32_t *)mem_buffer, block_size);
+        }
+    } else {
+        if (s->playback_mode & MP_AUDIO_MONO) {
+            codec_buffer = wm8750_dac_buffer(s->wm, block_size);
+            for (pos = 0; pos < block_size; pos++) {
+                *codec_buffer++ = cpu_to_le16(256 * *mem_buffer);
+                *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
+            }
+        } else {
+            codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
+            for (pos = 0; pos < block_size; pos += 2) {
+                *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
+                *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
+            }
+        }
+    }
+    wm8750_dac_commit(s->wm);
+
+    s->last_free = free_out - block_size;
+
+    if (s->play_pos == 0) {
+        s->status |= MP_AUDIO_TX_HALF;
+        s->play_pos = block_size;
+    } else {
+        s->status |= MP_AUDIO_TX_FULL;
+        s->play_pos = 0;
+    }
+
+    if (s->status & s->irq_enable) {
+        qemu_irq_raise(s->irq);
+    }
+}
+
+static void mv88w8618_audio_clock_update(mv88w8618_audio_state *s)
+{
+    int rate;
+
+    if (s->playback_mode & MP_AUDIO_CLOCK_24MHZ) {
+        rate = 24576000 / 64; /* 24.576MHz */
+    } else {
+        rate = 11289600 / 64; /* 11.2896MHz */
+    }
+    rate /= ((s->clock_div >> 8) & 0xff) + 1;
+
+    wm8750_set_bclk_in(s->wm, rate);
+}
+
+static uint64_t mv88w8618_audio_read(void *opaque, hwaddr offset,
+                                    unsigned size)
+{
+    mv88w8618_audio_state *s = opaque;
+
+    switch (offset) {
+    case MP_AUDIO_PLAYBACK_MODE:
+        return s->playback_mode;
+
+    case MP_AUDIO_CLOCK_DIV:
+        return s->clock_div;
+
+    case MP_AUDIO_IRQ_STATUS:
+        return s->status;
+
+    case MP_AUDIO_IRQ_ENABLE:
+        return s->irq_enable;
+
+    case MP_AUDIO_TX_STATUS:
+        return s->play_pos >> 2;
+
+    default:
+        return 0;
+    }
+}
+
+static void mv88w8618_audio_write(void *opaque, hwaddr offset,
+                                  uint64_t value, unsigned size)
+{
+    mv88w8618_audio_state *s = opaque;
+
+    switch (offset) {
+    case MP_AUDIO_PLAYBACK_MODE:
+        if (value & MP_AUDIO_PLAYBACK_EN &&
+            !(s->playback_mode & MP_AUDIO_PLAYBACK_EN)) {
+            s->status = 0;
+            s->last_free = 0;
+            s->play_pos = 0;
+        }
+        s->playback_mode = value;
+        mv88w8618_audio_clock_update(s);
+        break;
+
+    case MP_AUDIO_CLOCK_DIV:
+        s->clock_div = value;
+        s->last_free = 0;
+        s->play_pos = 0;
+        mv88w8618_audio_clock_update(s);
+        break;
+
+    case MP_AUDIO_IRQ_STATUS:
+        s->status &= ~value;
+        break;
+
+    case MP_AUDIO_IRQ_ENABLE:
+        s->irq_enable = value;
+        if (s->status & s->irq_enable) {
+            qemu_irq_raise(s->irq);
+        }
+        break;
+
+    case MP_AUDIO_TX_START_LO:
+        s->phys_buf = (s->phys_buf & 0xFFFF0000) | (value & 0xFFFF);
+        s->target_buffer = s->phys_buf;
+        s->play_pos = 0;
+        s->last_free = 0;
+        break;
+
+    case MP_AUDIO_TX_THRESHOLD:
+        s->threshold = (value + 1) * 4;
+        break;
+
+    case MP_AUDIO_TX_START_HI:
+        s->phys_buf = (s->phys_buf & 0xFFFF) | (value << 16);
+        s->target_buffer = s->phys_buf;
+        s->play_pos = 0;
+        s->last_free = 0;
+        break;
+    }
+}
+
+static void mv88w8618_audio_reset(DeviceState *d)
+{
+    mv88w8618_audio_state *s = FROM_SYSBUS(mv88w8618_audio_state,
+                                           SYS_BUS_DEVICE(d));
+
+    s->playback_mode = 0;
+    s->status = 0;
+    s->irq_enable = 0;
+    s->clock_div = 0;
+    s->threshold = 0;
+    s->phys_buf = 0;
+}
+
+static const MemoryRegionOps mv88w8618_audio_ops = {
+    .read = mv88w8618_audio_read,
+    .write = mv88w8618_audio_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int mv88w8618_audio_init(SysBusDevice *dev)
+{
+    mv88w8618_audio_state *s = FROM_SYSBUS(mv88w8618_audio_state, dev);
+
+    sysbus_init_irq(dev, &s->irq);
+
+    wm8750_data_req_set(s->wm, mv88w8618_audio_callback, s);
+
+    memory_region_init_io(&s->iomem, &mv88w8618_audio_ops, s,
+                          "audio", MP_AUDIO_SIZE);
+    sysbus_init_mmio(dev, &s->iomem);
+
+    return 0;
+}
+
+static const VMStateDescription mv88w8618_audio_vmsd = {
+    .name = "mv88w8618_audio",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .minimum_version_id_old = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32(playback_mode, mv88w8618_audio_state),
+        VMSTATE_UINT32(status, mv88w8618_audio_state),
+        VMSTATE_UINT32(irq_enable, mv88w8618_audio_state),
+        VMSTATE_UINT32(phys_buf, mv88w8618_audio_state),
+        VMSTATE_UINT32(target_buffer, mv88w8618_audio_state),
+        VMSTATE_UINT32(threshold, mv88w8618_audio_state),
+        VMSTATE_UINT32(play_pos, mv88w8618_audio_state),
+        VMSTATE_UINT32(last_free, mv88w8618_audio_state),
+        VMSTATE_UINT32(clock_div, mv88w8618_audio_state),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static Property mv88w8618_audio_properties[] = {
+    DEFINE_PROP_PTR("wm8750", mv88w8618_audio_state, wm),
+    {/* end of list */},
+};
+
+static void mv88w8618_audio_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+    k->init = mv88w8618_audio_init;
+    dc->reset = mv88w8618_audio_reset;
+    dc->vmsd = &mv88w8618_audio_vmsd;
+    dc->props = mv88w8618_audio_properties;
+}
+
+static const TypeInfo mv88w8618_audio_info = {
+    .name          = "mv88w8618_audio",
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(mv88w8618_audio_state),
+    .class_init    = mv88w8618_audio_class_init,
+};
+
+static void mv88w8618_register_types(void)
+{
+    type_register_static(&mv88w8618_audio_info);
+}
+
+type_init(mv88w8618_register_types)