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-rw-r--r--hw/m68k/Makefile.objs1
-rw-r--r--hw/m68k/next-kbd.c291
-rw-r--r--include/hw/m68k/next-cube.h2
3 files changed, 294 insertions, 0 deletions
diff --git a/hw/m68k/Makefile.objs b/hw/m68k/Makefile.objs
index 482f8477b4..688002cac1 100644
--- a/hw/m68k/Makefile.objs
+++ b/hw/m68k/Makefile.objs
@@ -1,2 +1,3 @@
obj-$(CONFIG_AN5206) += an5206.o mcf5206.o
obj-$(CONFIG_MCF5208) += mcf5208.o mcf_intc.o
+obj-$(CONFIG_NEXTCUBE) += next-kbd.o
diff --git a/hw/m68k/next-kbd.c b/hw/m68k/next-kbd.c
new file mode 100644
index 0000000000..2dff87be15
--- /dev/null
+++ b/hw/m68k/next-kbd.c
@@ -0,0 +1,291 @@
+/*
+ * QEMU NeXT Keyboard/Mouse emulation
+ *
+ * Copyright (c) 2011 Bryce Lanham
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/*
+ * This is admittedly hackish, but works well enough for basic input. Mouse
+ * support will be added once we can boot something that needs the mouse.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/log.h"
+#include "exec/address-spaces.h"
+#include "hw/hw.h"
+#include "hw/sysbus.h"
+#include "hw/m68k/next-cube.h"
+#include "ui/console.h"
+#include "sysemu/sysemu.h"
+#include "migration/vmstate.h"
+
+#define NEXTKBD(obj) OBJECT_CHECK(NextKBDState, (obj), TYPE_NEXTKBD)
+
+/* following defintions from next68k netbsd */
+#define CSR_INT 0x00800000
+#define CSR_DATA 0x00400000
+
+#define KD_KEYMASK 0x007f
+#define KD_DIRECTION 0x0080 /* pressed or released */
+#define KD_CNTL 0x0100
+#define KD_LSHIFT 0x0200
+#define KD_RSHIFT 0x0400
+#define KD_LCOMM 0x0800
+#define KD_RCOMM 0x1000
+#define KD_LALT 0x2000
+#define KD_RALT 0x4000
+#define KD_VALID 0x8000 /* only set for scancode keys ? */
+#define KD_MODS 0x4f00
+
+#define KBD_QUEUE_SIZE 256
+
+typedef struct {
+ uint8_t data[KBD_QUEUE_SIZE];
+ int rptr, wptr, count;
+} KBDQueue;
+
+
+typedef struct NextKBDState {
+ SysBusDevice sbd;
+ MemoryRegion mr;
+ KBDQueue queue;
+ uint16_t shift;
+} NextKBDState;
+
+static void queue_code(void *opaque, int code);
+
+/* lots of magic numbers here */
+static uint32_t kbd_read_byte(void *opaque, hwaddr addr)
+{
+ switch (addr & 0x3) {
+ case 0x0: /* 0xe000 */
+ return 0x80 | 0x20;
+
+ case 0x1: /* 0xe001 */
+ return 0x80 | 0x40 | 0x20 | 0x10;
+
+ case 0x2: /* 0xe002 */
+ /* returning 0x40 caused mach to hang */
+ return 0x10 | 0x2 | 0x1;
+
+ default:
+ qemu_log_mask(LOG_UNIMP, "NeXT kbd read byte %"HWADDR_PRIx"\n", addr);
+ }
+
+ return 0;
+}
+
+static uint32_t kbd_read_word(void *opaque, hwaddr addr)
+{
+ qemu_log_mask(LOG_UNIMP, "NeXT kbd read word %"HWADDR_PRIx"\n", addr);
+ return 0;
+}
+
+/* even more magic numbers */
+static uint32_t kbd_read_long(void *opaque, hwaddr addr)
+{
+ int key = 0;
+ NextKBDState *s = NEXTKBD(opaque);
+ KBDQueue *q = &s->queue;
+
+ switch (addr & 0xf) {
+ case 0x0: /* 0xe000 */
+ return 0xA0F09300;
+
+ case 0x8: /* 0xe008 */
+ /* get keycode from buffer */
+ if (q->count > 0) {
+ key = q->data[q->rptr];
+ if (++q->rptr == KBD_QUEUE_SIZE) {
+ q->rptr = 0;
+ }
+
+ q->count--;
+
+ if (s->shift) {
+ key |= s->shift;
+ }
+
+ if (key & 0x80) {
+ return 0;
+ } else {
+ return 0x10000000 | KD_VALID | key;
+ }
+ } else {
+ return 0;
+ }
+
+ default:
+ qemu_log_mask(LOG_UNIMP, "NeXT kbd read long %"HWADDR_PRIx"\n", addr);
+ return 0;
+ }
+}
+
+static uint64_t kbd_readfn(void *opaque, hwaddr addr, unsigned size)
+{
+ switch (size) {
+ case 1:
+ return kbd_read_byte(opaque, addr);
+ case 2:
+ return kbd_read_word(opaque, addr);
+ case 4:
+ return kbd_read_long(opaque, addr);
+ default:
+ g_assert_not_reached();
+ }
+}
+
+static void kbd_writefn(void *opaque, hwaddr addr, uint64_t value,
+ unsigned size)
+{
+ qemu_log_mask(LOG_UNIMP, "NeXT kbd write: size=%u addr=0x%"HWADDR_PRIx
+ "val=0x%"PRIx64"\n", size, addr, value);
+}
+
+static const MemoryRegionOps kbd_ops = {
+ .read = kbd_readfn,
+ .write = kbd_writefn,
+ .valid.min_access_size = 1,
+ .valid.max_access_size = 4,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static void nextkbd_event(void *opaque, int ch)
+{
+ /*
+ * Will want to set vars for caps/num lock
+ * if (ch & 0x80) -> key release
+ * there's also e0 escaped scancodes that might need to be handled
+ */
+ queue_code(opaque, ch);
+}
+
+static const unsigned char next_keycodes[128] = {
+ 0x00, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x50, 0x4F,
+ 0x4E, 0x1E, 0x1F, 0x20, 0x1D, 0x1C, 0x1B, 0x00,
+ 0x42, 0x43, 0x44, 0x45, 0x48, 0x47, 0x46, 0x06,
+ 0x07, 0x08, 0x00, 0x00, 0x2A, 0x00, 0x39, 0x3A,
+ 0x3B, 0x3C, 0x3D, 0x40, 0x3F, 0x3E, 0x2D, 0x2C,
+ 0x2B, 0x26, 0x00, 0x00, 0x31, 0x32, 0x33, 0x34,
+ 0x35, 0x37, 0x36, 0x2e, 0x2f, 0x30, 0x00, 0x00,
+ 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+static void queue_code(void *opaque, int code)
+{
+ NextKBDState *s = NEXTKBD(opaque);
+ KBDQueue *q = &s->queue;
+ int key = code & KD_KEYMASK;
+ int release = code & 0x80;
+ static int ext;
+
+ if (code == 0xE0) {
+ ext = 1;
+ }
+
+ if (code == 0x2A || code == 0x1D || code == 0x36) {
+ if (code == 0x2A) {
+ s->shift = KD_LSHIFT;
+ } else if (code == 0x36) {
+ s->shift = KD_RSHIFT;
+ ext = 0;
+ } else if (code == 0x1D && !ext) {
+ s->shift = KD_LCOMM;
+ } else if (code == 0x1D && ext) {
+ ext = 0;
+ s->shift = KD_RCOMM;
+ }
+ return;
+ } else if (code == (0x2A | 0x80) || code == (0x1D | 0x80) ||
+ code == (0x36 | 0x80)) {
+ s->shift = 0;
+ return;
+ }
+
+ if (q->count >= KBD_QUEUE_SIZE) {
+ return;
+ }
+
+ q->data[q->wptr] = next_keycodes[key] | release;
+
+ if (++q->wptr == KBD_QUEUE_SIZE) {
+ q->wptr = 0;
+ }
+
+ q->count++;
+
+ /*
+ * might need to actually trigger the NeXT irq, but as the keyboard works
+ * at the moment, I'll worry about it later
+ */
+ /* s->update_irq(s->update_arg, 1); */
+}
+
+static void nextkbd_reset(DeviceState *dev)
+{
+ NextKBDState *nks = NEXTKBD(dev);
+
+ memset(&nks->queue, 0, sizeof(KBDQueue));
+ nks->shift = 0;
+}
+
+static void nextkbd_realize(DeviceState *dev, Error **errp)
+{
+ NextKBDState *s = NEXTKBD(dev);
+
+ memory_region_init_io(&s->mr, OBJECT(dev), &kbd_ops, s, "next.kbd", 0x1000);
+ sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->mr);
+
+ qemu_add_kbd_event_handler(nextkbd_event, s);
+}
+
+static const VMStateDescription nextkbd_vmstate = {
+ .name = TYPE_NEXTKBD,
+ .unmigratable = 1, /* TODO: Implement this when m68k CPU is migratable */
+};
+
+static void nextkbd_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+
+ set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
+ dc->vmsd = &nextkbd_vmstate;
+ dc->realize = nextkbd_realize;
+ dc->reset = nextkbd_reset;
+}
+
+static const TypeInfo nextkbd_info = {
+ .name = TYPE_NEXTKBD,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(NextKBDState),
+ .class_init = nextkbd_class_init,
+};
+
+static void nextkbd_register_types(void)
+{
+ type_register_static(&nextkbd_info);
+}
+
+type_init(nextkbd_register_types)
diff --git a/include/hw/m68k/next-cube.h b/include/hw/m68k/next-cube.h
index 090c7c51aa..37f7ce3e34 100644
--- a/include/hw/m68k/next-cube.h
+++ b/include/hw/m68k/next-cube.h
@@ -4,4 +4,6 @@
#define TYPE_NEXTFB "next-fb"
+#define TYPE_NEXTKBD "next-kbd"
+
#endif /* NEXT_CUBE_H */
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-12 01:00:40 +0000