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Diffstat (limited to 'hw/marvell_88w8618_audio.c')
-rw-r--r--hw/marvell_88w8618_audio.c303
1 files changed, 0 insertions, 303 deletions
diff --git a/hw/marvell_88w8618_audio.c b/hw/marvell_88w8618_audio.c
deleted file mode 100644
index e042046e4f..0000000000
--- a/hw/marvell_88w8618_audio.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/*
- * 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.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)
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