mirror of
https://github.com/qemu/qemu.git
synced 2024-12-13 14:33:31 +08:00
83f7d43a9e
Replace device_init() with generalized type_init(). While at it, unify naming convention: type_init([$prefix_]register_types) Also, type_init() is a function, so add preceding blank line where necessary and don't put a semicolon after the closing brace. Signed-off-by: Andreas Färber <afaerber@suse.de> Cc: Anthony Liguori <anthony@codemonkey.ws> Cc: malc <av1474@comtv.ru> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
332 lines
9.0 KiB
C
332 lines
9.0 KiB
C
/*
|
|
* QEMU model of the Milkymist SoftUSB block.
|
|
*
|
|
* 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:
|
|
* not available yet
|
|
*/
|
|
|
|
#include "hw.h"
|
|
#include "sysbus.h"
|
|
#include "trace.h"
|
|
#include "console.h"
|
|
#include "hid.h"
|
|
#include "qemu-error.h"
|
|
|
|
enum {
|
|
R_CTRL = 0,
|
|
R_MAX
|
|
};
|
|
|
|
enum {
|
|
CTRL_RESET = (1<<0),
|
|
};
|
|
|
|
#define COMLOC_DEBUG_PRODUCE 0x1000
|
|
#define COMLOC_DEBUG_BASE 0x1001
|
|
#define COMLOC_MEVT_PRODUCE 0x1101
|
|
#define COMLOC_MEVT_BASE 0x1102
|
|
#define COMLOC_KEVT_PRODUCE 0x1142
|
|
#define COMLOC_KEVT_BASE 0x1143
|
|
|
|
struct MilkymistSoftUsbState {
|
|
SysBusDevice busdev;
|
|
HIDState hid_kbd;
|
|
HIDState hid_mouse;
|
|
|
|
MemoryRegion regs_region;
|
|
MemoryRegion pmem;
|
|
MemoryRegion dmem;
|
|
qemu_irq irq;
|
|
|
|
/* device properties */
|
|
uint32_t pmem_base;
|
|
uint32_t pmem_size;
|
|
uint32_t dmem_base;
|
|
uint32_t dmem_size;
|
|
|
|
/* device registers */
|
|
uint32_t regs[R_MAX];
|
|
|
|
/* mouse state */
|
|
uint8_t mouse_hid_buffer[4];
|
|
|
|
/* keyboard state */
|
|
uint8_t kbd_hid_buffer[8];
|
|
};
|
|
typedef struct MilkymistSoftUsbState MilkymistSoftUsbState;
|
|
|
|
static uint64_t softusb_read(void *opaque, target_phys_addr_t addr,
|
|
unsigned size)
|
|
{
|
|
MilkymistSoftUsbState *s = opaque;
|
|
uint32_t r = 0;
|
|
|
|
addr >>= 2;
|
|
switch (addr) {
|
|
case R_CTRL:
|
|
r = s->regs[addr];
|
|
break;
|
|
|
|
default:
|
|
error_report("milkymist_softusb: read access to unknown register 0x"
|
|
TARGET_FMT_plx, addr << 2);
|
|
break;
|
|
}
|
|
|
|
trace_milkymist_softusb_memory_read(addr << 2, r);
|
|
|
|
return r;
|
|
}
|
|
|
|
static void
|
|
softusb_write(void *opaque, target_phys_addr_t addr, uint64_t value,
|
|
unsigned size)
|
|
{
|
|
MilkymistSoftUsbState *s = opaque;
|
|
|
|
trace_milkymist_softusb_memory_write(addr, value);
|
|
|
|
addr >>= 2;
|
|
switch (addr) {
|
|
case R_CTRL:
|
|
s->regs[addr] = value;
|
|
break;
|
|
|
|
default:
|
|
error_report("milkymist_softusb: write access to unknown register 0x"
|
|
TARGET_FMT_plx, addr << 2);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static const MemoryRegionOps softusb_mmio_ops = {
|
|
.read = softusb_read,
|
|
.write = softusb_write,
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
.valid = {
|
|
.min_access_size = 4,
|
|
.max_access_size = 4,
|
|
},
|
|
};
|
|
|
|
static inline void softusb_read_dmem(MilkymistSoftUsbState *s,
|
|
uint32_t offset, uint8_t *buf, uint32_t len)
|
|
{
|
|
if (offset + len >= s->dmem_size) {
|
|
error_report("milkymist_softusb: read dmem out of bounds "
|
|
"at offset 0x%x, len %d", offset, len);
|
|
return;
|
|
}
|
|
|
|
cpu_physical_memory_read(s->dmem_base + offset, buf, len);
|
|
}
|
|
|
|
static inline void softusb_write_dmem(MilkymistSoftUsbState *s,
|
|
uint32_t offset, uint8_t *buf, uint32_t len)
|
|
{
|
|
if (offset + len >= s->dmem_size) {
|
|
error_report("milkymist_softusb: write dmem out of bounds "
|
|
"at offset 0x%x, len %d", offset, len);
|
|
return;
|
|
}
|
|
|
|
cpu_physical_memory_write(s->dmem_base + offset, buf, len);
|
|
}
|
|
|
|
static inline void softusb_read_pmem(MilkymistSoftUsbState *s,
|
|
uint32_t offset, uint8_t *buf, uint32_t len)
|
|
{
|
|
if (offset + len >= s->pmem_size) {
|
|
error_report("milkymist_softusb: read pmem out of bounds "
|
|
"at offset 0x%x, len %d", offset, len);
|
|
return;
|
|
}
|
|
|
|
cpu_physical_memory_read(s->pmem_base + offset, buf, len);
|
|
}
|
|
|
|
static inline void softusb_write_pmem(MilkymistSoftUsbState *s,
|
|
uint32_t offset, uint8_t *buf, uint32_t len)
|
|
{
|
|
if (offset + len >= s->pmem_size) {
|
|
error_report("milkymist_softusb: write pmem out of bounds "
|
|
"at offset 0x%x, len %d", offset, len);
|
|
return;
|
|
}
|
|
|
|
cpu_physical_memory_write(s->pmem_base + offset, buf, len);
|
|
}
|
|
|
|
static void softusb_mouse_changed(MilkymistSoftUsbState *s)
|
|
{
|
|
uint8_t m;
|
|
|
|
softusb_read_dmem(s, COMLOC_MEVT_PRODUCE, &m, 1);
|
|
trace_milkymist_softusb_mevt(m);
|
|
softusb_write_dmem(s, COMLOC_MEVT_BASE + 4 * m, s->mouse_hid_buffer, 4);
|
|
m = (m + 1) & 0xf;
|
|
softusb_write_dmem(s, COMLOC_MEVT_PRODUCE, &m, 1);
|
|
|
|
trace_milkymist_softusb_pulse_irq();
|
|
qemu_irq_pulse(s->irq);
|
|
}
|
|
|
|
static void softusb_kbd_changed(MilkymistSoftUsbState *s)
|
|
{
|
|
uint8_t m;
|
|
|
|
softusb_read_dmem(s, COMLOC_KEVT_PRODUCE, &m, 1);
|
|
trace_milkymist_softusb_kevt(m);
|
|
softusb_write_dmem(s, COMLOC_KEVT_BASE + 8 * m, s->kbd_hid_buffer, 8);
|
|
m = (m + 1) & 0x7;
|
|
softusb_write_dmem(s, COMLOC_KEVT_PRODUCE, &m, 1);
|
|
|
|
trace_milkymist_softusb_pulse_irq();
|
|
qemu_irq_pulse(s->irq);
|
|
}
|
|
|
|
static void softusb_kbd_hid_datain(HIDState *hs)
|
|
{
|
|
MilkymistSoftUsbState *s = container_of(hs, MilkymistSoftUsbState, hid_kbd);
|
|
int len;
|
|
|
|
/* if device is in reset, do nothing */
|
|
if (s->regs[R_CTRL] & CTRL_RESET) {
|
|
return;
|
|
}
|
|
|
|
len = hid_keyboard_poll(hs, s->kbd_hid_buffer, sizeof(s->kbd_hid_buffer));
|
|
|
|
if (len == 8) {
|
|
softusb_kbd_changed(s);
|
|
}
|
|
}
|
|
|
|
static void softusb_mouse_hid_datain(HIDState *hs)
|
|
{
|
|
MilkymistSoftUsbState *s =
|
|
container_of(hs, MilkymistSoftUsbState, hid_mouse);
|
|
int len;
|
|
|
|
/* if device is in reset, do nothing */
|
|
if (s->regs[R_CTRL] & CTRL_RESET) {
|
|
return;
|
|
}
|
|
|
|
len = hid_pointer_poll(hs, s->mouse_hid_buffer,
|
|
sizeof(s->mouse_hid_buffer));
|
|
|
|
if (len == 4) {
|
|
softusb_mouse_changed(s);
|
|
}
|
|
}
|
|
|
|
static void milkymist_softusb_reset(DeviceState *d)
|
|
{
|
|
MilkymistSoftUsbState *s =
|
|
container_of(d, MilkymistSoftUsbState, busdev.qdev);
|
|
int i;
|
|
|
|
for (i = 0; i < R_MAX; i++) {
|
|
s->regs[i] = 0;
|
|
}
|
|
memset(s->kbd_hid_buffer, 0, sizeof(s->kbd_hid_buffer));
|
|
memset(s->mouse_hid_buffer, 0, sizeof(s->mouse_hid_buffer));
|
|
|
|
hid_reset(&s->hid_kbd);
|
|
hid_reset(&s->hid_mouse);
|
|
|
|
/* defaults */
|
|
s->regs[R_CTRL] = CTRL_RESET;
|
|
}
|
|
|
|
static int milkymist_softusb_init(SysBusDevice *dev)
|
|
{
|
|
MilkymistSoftUsbState *s = FROM_SYSBUS(typeof(*s), dev);
|
|
|
|
sysbus_init_irq(dev, &s->irq);
|
|
|
|
memory_region_init_io(&s->regs_region, &softusb_mmio_ops, s,
|
|
"milkymist-softusb", R_MAX * 4);
|
|
sysbus_init_mmio(dev, &s->regs_region);
|
|
|
|
/* register pmem and dmem */
|
|
memory_region_init_ram(&s->pmem, "milkymist-softusb.pmem",
|
|
s->pmem_size);
|
|
vmstate_register_ram_global(&s->pmem);
|
|
sysbus_add_memory(dev, s->pmem_base, &s->pmem);
|
|
memory_region_init_ram(&s->dmem, "milkymist-softusb.dmem",
|
|
s->dmem_size);
|
|
vmstate_register_ram_global(&s->dmem);
|
|
sysbus_add_memory(dev, s->dmem_base, &s->dmem);
|
|
|
|
hid_init(&s->hid_kbd, HID_KEYBOARD, softusb_kbd_hid_datain);
|
|
hid_init(&s->hid_mouse, HID_MOUSE, softusb_mouse_hid_datain);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const VMStateDescription vmstate_milkymist_softusb = {
|
|
.name = "milkymist-softusb",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.minimum_version_id_old = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_UINT32_ARRAY(regs, MilkymistSoftUsbState, R_MAX),
|
|
VMSTATE_HID_KEYBOARD_DEVICE(hid_kbd, MilkymistSoftUsbState),
|
|
VMSTATE_HID_POINTER_DEVICE(hid_mouse, MilkymistSoftUsbState),
|
|
VMSTATE_BUFFER(kbd_hid_buffer, MilkymistSoftUsbState),
|
|
VMSTATE_BUFFER(mouse_hid_buffer, MilkymistSoftUsbState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static Property milkymist_softusb_properties[] = {
|
|
DEFINE_PROP_UINT32("pmem_base", MilkymistSoftUsbState, pmem_base, 0xa0000000),
|
|
DEFINE_PROP_UINT32("pmem_size", MilkymistSoftUsbState, pmem_size, 0x00001000),
|
|
DEFINE_PROP_UINT32("dmem_base", MilkymistSoftUsbState, dmem_base, 0xa0020000),
|
|
DEFINE_PROP_UINT32("dmem_size", MilkymistSoftUsbState, dmem_size, 0x00002000),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void milkymist_softusb_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
|
|
|
|
k->init = milkymist_softusb_init;
|
|
dc->reset = milkymist_softusb_reset;
|
|
dc->vmsd = &vmstate_milkymist_softusb;
|
|
dc->props = milkymist_softusb_properties;
|
|
}
|
|
|
|
static TypeInfo milkymist_softusb_info = {
|
|
.name = "milkymist-softusb",
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(MilkymistSoftUsbState),
|
|
.class_init = milkymist_softusb_class_init,
|
|
};
|
|
|
|
static void milkymist_softusb_register_types(void)
|
|
{
|
|
type_register_static(&milkymist_softusb_info);
|
|
}
|
|
|
|
type_init(milkymist_softusb_register_types)
|