mirror of
https://github.com/Motorhead1991/qemu.git
synced 2025-08-05 00:33:55 -06:00
hw: move audio devices to hw/audio/, configure via default-configs/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
parent
7b2478956a
commit
34b8f63ea1
9 changed files with 8 additions and 3 deletions
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@ -13,4 +13,8 @@ common-obj-$(CONFIG_PCSPK) += pcspk.o
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common-obj-$(CONFIG_WM8750) += wm8750.o
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common-obj-$(CONFIG_PL041) += pl041.o lm4549.o
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common-obj-$(CONFIG_CS4231) += cs4231.o
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common-obj-$(CONFIG_MARVELL_88W8618) += marvell_88w8618.o
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common-obj-$(CONFIG_MILKYMIST) += milkymist-ac97.o
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$(obj)/adlib.o $(obj)/fmopl.o: QEMU_CFLAGS += -DBUILD_Y8950=0
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181
hw/audio/cs4231.c
Normal file
181
hw/audio/cs4231.c
Normal file
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@ -0,0 +1,181 @@
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/*
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* QEMU Crystal CS4231 audio chip emulation
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*
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* Copyright (c) 2006 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/sysbus.h"
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#include "trace.h"
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/*
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* In addition to Crystal CS4231 there is a DMA controller on Sparc.
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*/
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#define CS_SIZE 0x40
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#define CS_REGS 16
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#define CS_DREGS 32
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#define CS_MAXDREG (CS_DREGS - 1)
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typedef struct CSState {
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SysBusDevice busdev;
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MemoryRegion iomem;
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qemu_irq irq;
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uint32_t regs[CS_REGS];
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uint8_t dregs[CS_DREGS];
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} CSState;
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#define CS_RAP(s) ((s)->regs[0] & CS_MAXDREG)
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#define CS_VER 0xa0
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#define CS_CDC_VER 0x8a
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static void cs_reset(DeviceState *d)
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{
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CSState *s = container_of(d, CSState, busdev.qdev);
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memset(s->regs, 0, CS_REGS * 4);
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memset(s->dregs, 0, CS_DREGS);
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s->dregs[12] = CS_CDC_VER;
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s->dregs[25] = CS_VER;
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}
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static uint64_t cs_mem_read(void *opaque, hwaddr addr,
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unsigned size)
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{
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CSState *s = opaque;
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uint32_t saddr, ret;
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saddr = addr >> 2;
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switch (saddr) {
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case 1:
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switch (CS_RAP(s)) {
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case 3: // Write only
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ret = 0;
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break;
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default:
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ret = s->dregs[CS_RAP(s)];
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break;
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}
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trace_cs4231_mem_readl_dreg(CS_RAP(s), ret);
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break;
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default:
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ret = s->regs[saddr];
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trace_cs4231_mem_readl_reg(saddr, ret);
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break;
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}
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return ret;
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}
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static void cs_mem_write(void *opaque, hwaddr addr,
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uint64_t val, unsigned size)
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{
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CSState *s = opaque;
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uint32_t saddr;
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saddr = addr >> 2;
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trace_cs4231_mem_writel_reg(saddr, s->regs[saddr], val);
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switch (saddr) {
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case 1:
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trace_cs4231_mem_writel_dreg(CS_RAP(s), s->dregs[CS_RAP(s)], val);
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switch(CS_RAP(s)) {
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case 11:
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case 25: // Read only
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break;
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case 12:
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val &= 0x40;
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val |= CS_CDC_VER; // Codec version
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s->dregs[CS_RAP(s)] = val;
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break;
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default:
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s->dregs[CS_RAP(s)] = val;
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break;
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}
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break;
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case 2: // Read only
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break;
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case 4:
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if (val & 1) {
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cs_reset(&s->busdev.qdev);
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}
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val &= 0x7f;
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s->regs[saddr] = val;
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break;
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default:
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s->regs[saddr] = val;
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break;
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}
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}
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static const MemoryRegionOps cs_mem_ops = {
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.read = cs_mem_read,
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.write = cs_mem_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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};
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static const VMStateDescription vmstate_cs4231 = {
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.name ="cs4231",
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.version_id = 1,
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.minimum_version_id = 1,
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.minimum_version_id_old = 1,
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.fields = (VMStateField []) {
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VMSTATE_UINT32_ARRAY(regs, CSState, CS_REGS),
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VMSTATE_UINT8_ARRAY(dregs, CSState, CS_DREGS),
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VMSTATE_END_OF_LIST()
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}
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};
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static int cs4231_init1(SysBusDevice *dev)
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{
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CSState *s = FROM_SYSBUS(CSState, dev);
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memory_region_init_io(&s->iomem, &cs_mem_ops, s, "cs4321", CS_SIZE);
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sysbus_init_mmio(dev, &s->iomem);
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sysbus_init_irq(dev, &s->irq);
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return 0;
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}
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static Property cs4231_properties[] = {
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{.name = NULL},
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};
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static void cs4231_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
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k->init = cs4231_init1;
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dc->reset = cs_reset;
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dc->vmsd = &vmstate_cs4231;
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dc->props = cs4231_properties;
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}
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static const TypeInfo cs4231_info = {
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.name = "SUNW,CS4231",
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(CSState),
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.class_init = cs4231_class_init,
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};
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static void cs4231_register_types(void)
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{
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type_register_static(&cs4231_info);
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}
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type_init(cs4231_register_types)
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303
hw/audio/marvell_88w8618.c
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303
hw/audio/marvell_88w8618.c
Normal file
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/*
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* Marvell 88w8618 audio emulation extracted from
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* Marvell MV88w8618 / Freecom MusicPal emulation.
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*
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* Copyright (c) 2008 Jan Kiszka
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*
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* This code is licensed under the GNU GPL v2.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "hw/sysbus.h"
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#include "hw/hw.h"
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#include "hw/i2c/i2c.h"
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#include "hw/sysbus.h"
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#include "audio/audio.h"
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#define MP_AUDIO_SIZE 0x00001000
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/* Audio register offsets */
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#define MP_AUDIO_PLAYBACK_MODE 0x00
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#define MP_AUDIO_CLOCK_DIV 0x18
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#define MP_AUDIO_IRQ_STATUS 0x20
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#define MP_AUDIO_IRQ_ENABLE 0x24
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#define MP_AUDIO_TX_START_LO 0x28
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#define MP_AUDIO_TX_THRESHOLD 0x2C
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#define MP_AUDIO_TX_STATUS 0x38
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#define MP_AUDIO_TX_START_HI 0x40
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/* Status register and IRQ enable bits */
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#define MP_AUDIO_TX_HALF (1 << 6)
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#define MP_AUDIO_TX_FULL (1 << 7)
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/* Playback mode bits */
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#define MP_AUDIO_16BIT_SAMPLE (1 << 0)
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#define MP_AUDIO_PLAYBACK_EN (1 << 7)
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#define MP_AUDIO_CLOCK_24MHZ (1 << 9)
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#define MP_AUDIO_MONO (1 << 14)
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typedef struct mv88w8618_audio_state {
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SysBusDevice busdev;
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MemoryRegion iomem;
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qemu_irq irq;
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uint32_t playback_mode;
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uint32_t status;
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uint32_t irq_enable;
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uint32_t phys_buf;
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uint32_t target_buffer;
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uint32_t threshold;
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uint32_t play_pos;
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uint32_t last_free;
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uint32_t clock_div;
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void *wm;
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} mv88w8618_audio_state;
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static void mv88w8618_audio_callback(void *opaque, int free_out, int free_in)
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{
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mv88w8618_audio_state *s = opaque;
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int16_t *codec_buffer;
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int8_t buf[4096];
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int8_t *mem_buffer;
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int pos, block_size;
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if (!(s->playback_mode & MP_AUDIO_PLAYBACK_EN)) {
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return;
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}
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if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE) {
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free_out <<= 1;
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}
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if (!(s->playback_mode & MP_AUDIO_MONO)) {
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free_out <<= 1;
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}
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block_size = s->threshold / 2;
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if (free_out - s->last_free < block_size) {
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return;
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}
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if (block_size > 4096) {
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return;
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}
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cpu_physical_memory_read(s->target_buffer + s->play_pos, (void *)buf,
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block_size);
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mem_buffer = buf;
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if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE) {
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if (s->playback_mode & MP_AUDIO_MONO) {
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codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
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for (pos = 0; pos < block_size; pos += 2) {
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*codec_buffer++ = *(int16_t *)mem_buffer;
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*codec_buffer++ = *(int16_t *)mem_buffer;
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mem_buffer += 2;
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}
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} else {
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memcpy(wm8750_dac_buffer(s->wm, block_size >> 2),
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(uint32_t *)mem_buffer, block_size);
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}
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} else {
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if (s->playback_mode & MP_AUDIO_MONO) {
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codec_buffer = wm8750_dac_buffer(s->wm, block_size);
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for (pos = 0; pos < block_size; pos++) {
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*codec_buffer++ = cpu_to_le16(256 * *mem_buffer);
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*codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
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}
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} else {
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codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
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for (pos = 0; pos < block_size; pos += 2) {
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*codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
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*codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
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}
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}
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}
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wm8750_dac_commit(s->wm);
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s->last_free = free_out - block_size;
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if (s->play_pos == 0) {
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s->status |= MP_AUDIO_TX_HALF;
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s->play_pos = block_size;
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} else {
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s->status |= MP_AUDIO_TX_FULL;
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s->play_pos = 0;
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}
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if (s->status & s->irq_enable) {
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qemu_irq_raise(s->irq);
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}
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}
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static void mv88w8618_audio_clock_update(mv88w8618_audio_state *s)
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{
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int rate;
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if (s->playback_mode & MP_AUDIO_CLOCK_24MHZ) {
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rate = 24576000 / 64; /* 24.576MHz */
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} else {
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rate = 11289600 / 64; /* 11.2896MHz */
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}
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rate /= ((s->clock_div >> 8) & 0xff) + 1;
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wm8750_set_bclk_in(s->wm, rate);
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}
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static uint64_t mv88w8618_audio_read(void *opaque, hwaddr offset,
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unsigned size)
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{
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mv88w8618_audio_state *s = opaque;
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switch (offset) {
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case MP_AUDIO_PLAYBACK_MODE:
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return s->playback_mode;
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case MP_AUDIO_CLOCK_DIV:
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return s->clock_div;
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case MP_AUDIO_IRQ_STATUS:
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return s->status;
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case MP_AUDIO_IRQ_ENABLE:
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return s->irq_enable;
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case MP_AUDIO_TX_STATUS:
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return s->play_pos >> 2;
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default:
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return 0;
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}
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}
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static void mv88w8618_audio_write(void *opaque, hwaddr offset,
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uint64_t value, unsigned size)
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{
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mv88w8618_audio_state *s = opaque;
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switch (offset) {
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case MP_AUDIO_PLAYBACK_MODE:
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if (value & MP_AUDIO_PLAYBACK_EN &&
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!(s->playback_mode & MP_AUDIO_PLAYBACK_EN)) {
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s->status = 0;
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s->last_free = 0;
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s->play_pos = 0;
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}
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s->playback_mode = value;
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mv88w8618_audio_clock_update(s);
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break;
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case MP_AUDIO_CLOCK_DIV:
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s->clock_div = value;
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s->last_free = 0;
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s->play_pos = 0;
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mv88w8618_audio_clock_update(s);
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break;
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case MP_AUDIO_IRQ_STATUS:
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s->status &= ~value;
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break;
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case MP_AUDIO_IRQ_ENABLE:
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s->irq_enable = value;
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if (s->status & s->irq_enable) {
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qemu_irq_raise(s->irq);
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}
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break;
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case MP_AUDIO_TX_START_LO:
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s->phys_buf = (s->phys_buf & 0xFFFF0000) | (value & 0xFFFF);
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s->target_buffer = s->phys_buf;
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s->play_pos = 0;
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s->last_free = 0;
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break;
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case MP_AUDIO_TX_THRESHOLD:
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s->threshold = (value + 1) * 4;
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break;
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case MP_AUDIO_TX_START_HI:
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s->phys_buf = (s->phys_buf & 0xFFFF) | (value << 16);
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s->target_buffer = s->phys_buf;
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s->play_pos = 0;
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s->last_free = 0;
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break;
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}
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}
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static void mv88w8618_audio_reset(DeviceState *d)
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{
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mv88w8618_audio_state *s = FROM_SYSBUS(mv88w8618_audio_state,
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SYS_BUS_DEVICE(d));
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s->playback_mode = 0;
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s->status = 0;
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s->irq_enable = 0;
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s->clock_div = 0;
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s->threshold = 0;
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s->phys_buf = 0;
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}
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static const MemoryRegionOps mv88w8618_audio_ops = {
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.read = mv88w8618_audio_read,
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.write = mv88w8618_audio_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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};
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static int mv88w8618_audio_init(SysBusDevice *dev)
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{
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mv88w8618_audio_state *s = FROM_SYSBUS(mv88w8618_audio_state, dev);
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sysbus_init_irq(dev, &s->irq);
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wm8750_data_req_set(s->wm, mv88w8618_audio_callback, s);
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memory_region_init_io(&s->iomem, &mv88w8618_audio_ops, s,
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"audio", MP_AUDIO_SIZE);
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sysbus_init_mmio(dev, &s->iomem);
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return 0;
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}
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static const VMStateDescription mv88w8618_audio_vmsd = {
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.name = "mv88w8618_audio",
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.version_id = 1,
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.minimum_version_id = 1,
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.minimum_version_id_old = 1,
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.fields = (VMStateField[]) {
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VMSTATE_UINT32(playback_mode, mv88w8618_audio_state),
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VMSTATE_UINT32(status, mv88w8618_audio_state),
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VMSTATE_UINT32(irq_enable, mv88w8618_audio_state),
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VMSTATE_UINT32(phys_buf, mv88w8618_audio_state),
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VMSTATE_UINT32(target_buffer, mv88w8618_audio_state),
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VMSTATE_UINT32(threshold, mv88w8618_audio_state),
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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)
|
344
hw/audio/milkymist-ac97.c
Normal file
344
hw/audio/milkymist-ac97.c
Normal file
|
@ -0,0 +1,344 @@
|
|||
/*
|
||||
* QEMU model of the Milkymist System Controller.
|
||||
*
|
||||
* Copyright (c) 2010 Michael Walle <michael@walle.cc>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*
|
||||
* Specification available at:
|
||||
* http://www.milkymist.org/socdoc/ac97.pdf
|
||||
*/
|
||||
|
||||
#include "hw/hw.h"
|
||||
#include "hw/sysbus.h"
|
||||
#include "trace.h"
|
||||
#include "audio/audio.h"
|
||||
#include "qemu/error-report.h"
|
||||
|
||||
enum {
|
||||
R_AC97_CTRL = 0,
|
||||
R_AC97_ADDR,
|
||||
R_AC97_DATAOUT,
|
||||
R_AC97_DATAIN,
|
||||
R_D_CTRL,
|
||||
R_D_ADDR,
|
||||
R_D_REMAINING,
|
||||
R_RESERVED,
|
||||
R_U_CTRL,
|
||||
R_U_ADDR,
|
||||
R_U_REMAINING,
|
||||
R_MAX
|
||||
};
|
||||
|
||||
enum {
|
||||
AC97_CTRL_RQEN = (1<<0),
|
||||
AC97_CTRL_WRITE = (1<<1),
|
||||
};
|
||||
|
||||
enum {
|
||||
CTRL_EN = (1<<0),
|
||||
};
|
||||
|
||||
struct MilkymistAC97State {
|
||||
SysBusDevice busdev;
|
||||
MemoryRegion regs_region;
|
||||
|
||||
QEMUSoundCard card;
|
||||
SWVoiceIn *voice_in;
|
||||
SWVoiceOut *voice_out;
|
||||
|
||||
uint32_t regs[R_MAX];
|
||||
|
||||
qemu_irq crrequest_irq;
|
||||
qemu_irq crreply_irq;
|
||||
qemu_irq dmar_irq;
|
||||
qemu_irq dmaw_irq;
|
||||
};
|
||||
typedef struct MilkymistAC97State MilkymistAC97State;
|
||||
|
||||
static void update_voices(MilkymistAC97State *s)
|
||||
{
|
||||
if (s->regs[R_D_CTRL] & CTRL_EN) {
|
||||
AUD_set_active_out(s->voice_out, 1);
|
||||
} else {
|
||||
AUD_set_active_out(s->voice_out, 0);
|
||||
}
|
||||
|
||||
if (s->regs[R_U_CTRL] & CTRL_EN) {
|
||||
AUD_set_active_in(s->voice_in, 1);
|
||||
} else {
|
||||
AUD_set_active_in(s->voice_in, 0);
|
||||
}
|
||||
}
|
||||
|
||||
static uint64_t ac97_read(void *opaque, hwaddr addr,
|
||||
unsigned size)
|
||||
{
|
||||
MilkymistAC97State *s = opaque;
|
||||
uint32_t r = 0;
|
||||
|
||||
addr >>= 2;
|
||||
switch (addr) {
|
||||
case R_AC97_CTRL:
|
||||
case R_AC97_ADDR:
|
||||
case R_AC97_DATAOUT:
|
||||
case R_AC97_DATAIN:
|
||||
case R_D_CTRL:
|
||||
case R_D_ADDR:
|
||||
case R_D_REMAINING:
|
||||
case R_U_CTRL:
|
||||
case R_U_ADDR:
|
||||
case R_U_REMAINING:
|
||||
r = s->regs[addr];
|
||||
break;
|
||||
|
||||
default:
|
||||
error_report("milkymist_ac97: read access to unknown register 0x"
|
||||
TARGET_FMT_plx, addr << 2);
|
||||
break;
|
||||
}
|
||||
|
||||
trace_milkymist_ac97_memory_read(addr << 2, r);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
static void ac97_write(void *opaque, hwaddr addr, uint64_t value,
|
||||
unsigned size)
|
||||
{
|
||||
MilkymistAC97State *s = opaque;
|
||||
|
||||
trace_milkymist_ac97_memory_write(addr, value);
|
||||
|
||||
addr >>= 2;
|
||||
switch (addr) {
|
||||
case R_AC97_CTRL:
|
||||
/* always raise an IRQ according to the direction */
|
||||
if (value & AC97_CTRL_RQEN) {
|
||||
if (value & AC97_CTRL_WRITE) {
|
||||
trace_milkymist_ac97_pulse_irq_crrequest();
|
||||
qemu_irq_pulse(s->crrequest_irq);
|
||||
} else {
|
||||
trace_milkymist_ac97_pulse_irq_crreply();
|
||||
qemu_irq_pulse(s->crreply_irq);
|
||||
}
|
||||
}
|
||||
|
||||
/* RQEN is self clearing */
|
||||
s->regs[addr] = value & ~AC97_CTRL_RQEN;
|
||||
break;
|
||||
case R_D_CTRL:
|
||||
case R_U_CTRL:
|
||||
s->regs[addr] = value;
|
||||
update_voices(s);
|
||||
break;
|
||||
case R_AC97_ADDR:
|
||||
case R_AC97_DATAOUT:
|
||||
case R_AC97_DATAIN:
|
||||
case R_D_ADDR:
|
||||
case R_D_REMAINING:
|
||||
case R_U_ADDR:
|
||||
case R_U_REMAINING:
|
||||
s->regs[addr] = value;
|
||||
break;
|
||||
|
||||
default:
|
||||
error_report("milkymist_ac97: write access to unknown register 0x"
|
||||
TARGET_FMT_plx, addr);
|
||||
break;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
static const MemoryRegionOps ac97_mmio_ops = {
|
||||
.read = ac97_read,
|
||||
.write = ac97_write,
|
||||
.valid = {
|
||||
.min_access_size = 4,
|
||||
.max_access_size = 4,
|
||||
},
|
||||
.endianness = DEVICE_NATIVE_ENDIAN,
|
||||
};
|
||||
|
||||
static void ac97_in_cb(void *opaque, int avail_b)
|
||||
{
|
||||
MilkymistAC97State *s = opaque;
|
||||
uint8_t buf[4096];
|
||||
uint32_t remaining = s->regs[R_U_REMAINING];
|
||||
int temp = audio_MIN(remaining, avail_b);
|
||||
uint32_t addr = s->regs[R_U_ADDR];
|
||||
int transferred = 0;
|
||||
|
||||
trace_milkymist_ac97_in_cb(avail_b, remaining);
|
||||
|
||||
/* prevent from raising an IRQ */
|
||||
if (temp == 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
while (temp) {
|
||||
int acquired, to_copy;
|
||||
|
||||
to_copy = audio_MIN(temp, sizeof(buf));
|
||||
acquired = AUD_read(s->voice_in, buf, to_copy);
|
||||
if (!acquired) {
|
||||
break;
|
||||
}
|
||||
|
||||
cpu_physical_memory_write(addr, buf, acquired);
|
||||
|
||||
temp -= acquired;
|
||||
addr += acquired;
|
||||
transferred += acquired;
|
||||
}
|
||||
|
||||
trace_milkymist_ac97_in_cb_transferred(transferred);
|
||||
|
||||
s->regs[R_U_ADDR] = addr;
|
||||
s->regs[R_U_REMAINING] -= transferred;
|
||||
|
||||
if ((s->regs[R_U_CTRL] & CTRL_EN) && (s->regs[R_U_REMAINING] == 0)) {
|
||||
trace_milkymist_ac97_pulse_irq_dmaw();
|
||||
qemu_irq_pulse(s->dmaw_irq);
|
||||
}
|
||||
}
|
||||
|
||||
static void ac97_out_cb(void *opaque, int free_b)
|
||||
{
|
||||
MilkymistAC97State *s = opaque;
|
||||
uint8_t buf[4096];
|
||||
uint32_t remaining = s->regs[R_D_REMAINING];
|
||||
int temp = audio_MIN(remaining, free_b);
|
||||
uint32_t addr = s->regs[R_D_ADDR];
|
||||
int transferred = 0;
|
||||
|
||||
trace_milkymist_ac97_out_cb(free_b, remaining);
|
||||
|
||||
/* prevent from raising an IRQ */
|
||||
if (temp == 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
while (temp) {
|
||||
int copied, to_copy;
|
||||
|
||||
to_copy = audio_MIN(temp, sizeof(buf));
|
||||
cpu_physical_memory_read(addr, buf, to_copy);
|
||||
copied = AUD_write(s->voice_out, buf, to_copy);
|
||||
if (!copied) {
|
||||
break;
|
||||
}
|
||||
temp -= copied;
|
||||
addr += copied;
|
||||
transferred += copied;
|
||||
}
|
||||
|
||||
trace_milkymist_ac97_out_cb_transferred(transferred);
|
||||
|
||||
s->regs[R_D_ADDR] = addr;
|
||||
s->regs[R_D_REMAINING] -= transferred;
|
||||
|
||||
if ((s->regs[R_D_CTRL] & CTRL_EN) && (s->regs[R_D_REMAINING] == 0)) {
|
||||
trace_milkymist_ac97_pulse_irq_dmar();
|
||||
qemu_irq_pulse(s->dmar_irq);
|
||||
}
|
||||
}
|
||||
|
||||
static void milkymist_ac97_reset(DeviceState *d)
|
||||
{
|
||||
MilkymistAC97State *s = container_of(d, MilkymistAC97State, busdev.qdev);
|
||||
int i;
|
||||
|
||||
for (i = 0; i < R_MAX; i++) {
|
||||
s->regs[i] = 0;
|
||||
}
|
||||
|
||||
AUD_set_active_in(s->voice_in, 0);
|
||||
AUD_set_active_out(s->voice_out, 0);
|
||||
}
|
||||
|
||||
static int ac97_post_load(void *opaque, int version_id)
|
||||
{
|
||||
MilkymistAC97State *s = opaque;
|
||||
|
||||
update_voices(s);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int milkymist_ac97_init(SysBusDevice *dev)
|
||||
{
|
||||
MilkymistAC97State *s = FROM_SYSBUS(typeof(*s), dev);
|
||||
|
||||
struct audsettings as;
|
||||
sysbus_init_irq(dev, &s->crrequest_irq);
|
||||
sysbus_init_irq(dev, &s->crreply_irq);
|
||||
sysbus_init_irq(dev, &s->dmar_irq);
|
||||
sysbus_init_irq(dev, &s->dmaw_irq);
|
||||
|
||||
AUD_register_card("Milkymist AC'97", &s->card);
|
||||
|
||||
as.freq = 48000;
|
||||
as.nchannels = 2;
|
||||
as.fmt = AUD_FMT_S16;
|
||||
as.endianness = 1;
|
||||
|
||||
s->voice_in = AUD_open_in(&s->card, s->voice_in,
|
||||
"mm_ac97.in", s, ac97_in_cb, &as);
|
||||
s->voice_out = AUD_open_out(&s->card, s->voice_out,
|
||||
"mm_ac97.out", s, ac97_out_cb, &as);
|
||||
|
||||
memory_region_init_io(&s->regs_region, &ac97_mmio_ops, s,
|
||||
"milkymist-ac97", R_MAX * 4);
|
||||
sysbus_init_mmio(dev, &s->regs_region);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const VMStateDescription vmstate_milkymist_ac97 = {
|
||||
.name = "milkymist-ac97",
|
||||
.version_id = 1,
|
||||
.minimum_version_id = 1,
|
||||
.minimum_version_id_old = 1,
|
||||
.post_load = ac97_post_load,
|
||||
.fields = (VMStateField[]) {
|
||||
VMSTATE_UINT32_ARRAY(regs, MilkymistAC97State, R_MAX),
|
||||
VMSTATE_END_OF_LIST()
|
||||
}
|
||||
};
|
||||
|
||||
static void milkymist_ac97_class_init(ObjectClass *klass, void *data)
|
||||
{
|
||||
DeviceClass *dc = DEVICE_CLASS(klass);
|
||||
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
|
||||
|
||||
k->init = milkymist_ac97_init;
|
||||
dc->reset = milkymist_ac97_reset;
|
||||
dc->vmsd = &vmstate_milkymist_ac97;
|
||||
}
|
||||
|
||||
static const TypeInfo milkymist_ac97_info = {
|
||||
.name = "milkymist-ac97",
|
||||
.parent = TYPE_SYS_BUS_DEVICE,
|
||||
.instance_size = sizeof(MilkymistAC97State),
|
||||
.class_init = milkymist_ac97_class_init,
|
||||
};
|
||||
|
||||
static void milkymist_ac97_register_types(void)
|
||||
{
|
||||
type_register_static(&milkymist_ac97_info);
|
||||
}
|
||||
|
||||
type_init(milkymist_ac97_register_types)
|
Loading…
Add table
Add a link
Reference in a new issue