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Diffstat (limited to 'hw/milkymist-softusb.c')
-rw-r--r--hw/milkymist-softusb.c334
1 files changed, 0 insertions, 334 deletions
diff --git a/hw/milkymist-softusb.c b/hw/milkymist-softusb.c
deleted file mode 100644
index 90a0ae5769..0000000000
--- a/hw/milkymist-softusb.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * 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/hw.h"
-#include "hw/sysbus.h"
-#include "trace.h"
-#include "ui/console.h"
-#include "hw/hid.h"
-#include "qemu/error-report.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;
-
- void *pmem_ptr;
- void *dmem_ptr;
-
- /* device properties */
- uint32_t pmem_size;
- 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, hwaddr 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, hwaddr 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);
- memset(buf, 0, len);
- return;
- }
-
- memcpy(buf, s->dmem_ptr + offset, 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;
- }
-
- memcpy(s->dmem_ptr + 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);
- memset(buf, 0, len);
- return;
- }
-
- memcpy(buf, s->pmem_ptr + offset, 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;
- }
-
- memcpy(s->pmem_ptr + 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);
- s->pmem_ptr = memory_region_get_ram_ptr(&s->pmem);
- sysbus_init_mmio(dev, &s->pmem);
- memory_region_init_ram(&s->dmem, "milkymist-softusb.dmem",
- s->dmem_size);
- vmstate_register_ram_global(&s->dmem);
- s->dmem_ptr = memory_region_get_ram_ptr(&s->dmem);
- sysbus_init_mmio(dev, &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_size", MilkymistSoftUsbState, pmem_size, 0x00001000),
- 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 const 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)
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