2 * QEMU Crystal CS4231 audio chip emulation
4 * Copyright (c) 2006 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
29 * In addition to Crystal CS4231 there is a DMA controller on Sparc.
34 #define CS_MAXDREG (CS_DREGS - 1)
36 typedef struct CSState {
39 uint32_t regs[CS_REGS];
40 uint8_t dregs[CS_DREGS];
43 #define CS_RAP(s) ((s)->regs[0] & CS_MAXDREG)
45 #define CS_CDC_VER 0x8a
47 static void cs_reset(DeviceState *d)
49 CSState *s = container_of(d, CSState, busdev.qdev);
51 memset(s->regs, 0, CS_REGS * 4);
52 memset(s->dregs, 0, CS_DREGS);
53 s->dregs[12] = CS_CDC_VER;
54 s->dregs[25] = CS_VER;
57 static uint32_t cs_mem_readl(void *opaque, target_phys_addr_t addr)
70 ret = s->dregs[CS_RAP(s)];
73 trace_cs4231_mem_readl_dreg(CS_RAP(s), ret);
77 trace_cs4231_mem_readl_reg(saddr, ret);
83 static void cs_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
89 trace_cs4231_mem_writel_reg(saddr, s->regs[saddr], val);
92 trace_cs4231_mem_writel_dreg(CS_RAP(s), s->dregs[CS_RAP(s)], val);
99 val |= CS_CDC_VER; // Codec version
100 s->dregs[CS_RAP(s)] = val;
103 s->dregs[CS_RAP(s)] = val;
111 cs_reset(&s->busdev.qdev);
114 s->regs[saddr] = val;
117 s->regs[saddr] = val;
122 static CPUReadMemoryFunc * const cs_mem_read[3] = {
128 static CPUWriteMemoryFunc * const cs_mem_write[3] = {
134 static const VMStateDescription vmstate_cs4231 = {
137 .minimum_version_id = 1,
138 .minimum_version_id_old = 1,
139 .fields = (VMStateField []) {
140 VMSTATE_UINT32_ARRAY(regs, CSState, CS_REGS),
141 VMSTATE_UINT8_ARRAY(dregs, CSState, CS_DREGS),
142 VMSTATE_END_OF_LIST()
146 static int cs4231_init1(SysBusDevice *dev)
149 CSState *s = FROM_SYSBUS(CSState, dev);
151 io = cpu_register_io_memory(cs_mem_read, cs_mem_write, s,
152 DEVICE_NATIVE_ENDIAN);
153 sysbus_init_mmio(dev, CS_SIZE, io);
154 sysbus_init_irq(dev, &s->irq);
159 static SysBusDeviceInfo cs4231_info = {
160 .init = cs4231_init1,
161 .qdev.name = "SUNW,CS4231",
162 .qdev.size = sizeof(CSState),
163 .qdev.vmsd = &vmstate_cs4231,
164 .qdev.reset = cs_reset,
165 .qdev.props = (Property[]) {
170 static void cs4231_register_devices(void)
172 sysbus_register_withprop(&cs4231_info);
175 device_init(cs4231_register_devices)