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[Qemu-devel] [PATCH 4/8] next keyboard driver, only supports a subset of
From: |
Bryce Lanham |
Subject: |
[Qemu-devel] [PATCH 4/8] next keyboard driver, only supports a subset of modifier keys |
Date: |
Wed, 17 Aug 2011 17:09:08 -0500 |
Signed-off-by: Bryce Lanham <address@hidden>
---
hw/next-kbd.c | 243 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
hw/next-kbd.h | 2 +
2 files changed, 245 insertions(+), 0 deletions(-)
create mode 100644 hw/next-kbd.c
create mode 100644 hw/next-kbd.h
diff --git a/hw/next-kbd.c b/hw/next-kbd.c
new file mode 100644
index 0000000..31bda7d
--- /dev/null
+++ b/hw/next-kbd.c
@@ -0,0 +1,243 @@
+/*
+ * 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 "hw.h"
+#include "console.h"
+#include "next-kbd.h"
+
+/* debug NeXT keyboard */
+//#define DEBUG_KBD
+
+#ifdef DEBUG_KBD
+#define DPRINTF(fmt, ...) \
+ do { printf("KBD: " fmt , ## __VA_ARGS__); } while (0);
+#else
+#define DPRINTF(fmt, ...)
+#endif
+/* follwoing 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 KBDState {
+ KBDQueue queue;
+ uint8_t blank;
+ int shift;//make this an unsigned short, and set it to the modifier value
+
+} KBDState;
+KBDState *kbd_env;
+static void nextkbd_event(void *opaque, int ch);
+
+static void queue_code(void *opaque, int code);
+static uint32_t kbd_read_byte(void *opaque, target_phys_addr_t addr);
+static uint32_t kbd_read_word(void *opaque, target_phys_addr_t addr);
+static uint32_t kbd_read_long(void *opaque, target_phys_addr_t addr);
+
+static void kbd_write_byte(void *opaque, target_phys_addr_t addr, uint32_t
val);
+static void kbd_write_word(void *opaque, target_phys_addr_t addr, uint32_t
val);
+static void kbd_write_long(void *opaque, target_phys_addr_t addr, uint32_t
val);
+
+static CPUWriteMemoryFunc *kbd_write[3] = {
+ kbd_write_byte,
+ kbd_write_word,
+ kbd_write_long
+};
+static CPUReadMemoryFunc *kbd_read[3] = {
+ kbd_read_byte,
+ kbd_read_word,
+ kbd_read_long
+};
+
+
+
+
+void nextkbd_init(void *opaque)
+{
+ KBDState *s = qemu_mallocz(sizeof(KBDState));
+
+ s->shift = 0;
+
+ int kbd_addr = cpu_register_io_memory(kbd_read,kbd_write, (void
*)s,DEVICE_NATIVE_ENDIAN);
+
+
cpu_register_physical_memory((uint32_t)0x200e000,0x1000,kbd_addr);//from
netbsd's cpu.h
+
+ qemu_add_kbd_event_handler(nextkbd_event, s);
+}
+
+static uint32_t kbd_read_byte(void *opaque, target_phys_addr_t addr)
+{
+ addr = addr & 0xe003;
+ switch(addr)
+ {
+
+ case 0xe000:
+ return 0x80|0x20;
+
+ case 0xe001:
+ return 0x80|0x40|0x20|0x10;
+
+ case 0xe002:
+ return 0x40|0x10|0x2|0x1;
+
+ default:
+ DPRINTF("RB ADDR %x\n",addr);
+ return 0;
+ }
+ return 0;
+}
+static uint32_t kbd_read_word(void *opaque, target_phys_addr_t addr)
+{
+ DPRINTF("RW ADDR %x\n",addr);
+ return 0;
+}
+static uint32_t kbd_read_long(void *opaque, target_phys_addr_t addr)
+{
+ int key = 0;
+ KBDState *s = (KBDState *)opaque;
+ KBDQueue *q = &s->queue;
+ switch(addr & 0xe00f)
+ {
+ case 0xe000:
+ // fprintf(stderr,"KB L Read: @ %X\n",((CPUM68KState
*)opaque)->pc);
+ return 0xA0F09300;
+
+ case 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 |= KD_LSHIFT;
+ if(key & 0x80)
+ return 0;
+ else
+ return 0x10000000 | KD_VALID | key;
+ }
+ else
+ return 0;
+ // return 0x10009026;
+
+ default:
+ DPRINTF("RL ADDR %x\n",addr);
+ return 0;
+ }
+}
+
+static void kbd_write_byte(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ //DPRINTF("WB ADDR %x\n",addr);
+}
+static void kbd_write_word(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ DPRINTF("WW ADDR %x\n",addr);
+}
+static void kbd_write_long(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ // DPRINTF("WL ADDR %x\n",addr);
+}
+
+
+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 */
+ DPRINTF("EVENT %X\n",ch);
+
+ queue_code(opaque, ch);
+
+}
+
+static const unsigned char next_keycodes[128] = {
+ 0, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x50, 0x4F, 0x4E, 0x1E, 0x1F,
0x20, 0x1D, 0x1C, 0x1B, 0,
+ 0x42, 0x43, 0x44, 0x45, 0x48, 0x47, 0x46, 0x06, 0x07, 0x08, 0x0, 0,
0x2A, 0, 0x39, 0x3A,
+ 0x3B, 0x3C, 0x3D, 0x40, 0x3F, 0x3E, 0x2D, 0x2C, 0x2B, 0x26, 0, 0,
0x31, 0x32, 0x33, 0x34,
+ 0x35, 0x37, 0x36, 0x2e, 0x2f, 0x30, 0, 0, 0, 0x38, 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, 0, 0, 0, 0, 0, 0
+};
+
+static void queue_code(void *opaque, int code)
+{
+
+ KBDState *s = (KBDState *)opaque;
+ KBDQueue *q = &s->queue;
+ int key = code & 0x7F;
+ int release = code & 0x80;
+ if(code == 0x2A)
+ {
+ s->shift = 1;
+ return;
+ }
+ else if(code == (0x2A | 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++;
+ //s->update_irq(s->update_arg, 1);
+ s->blank += 1;
+}
diff --git a/hw/next-kbd.h b/hw/next-kbd.h
new file mode 100644
index 0000000..efee144
--- /dev/null
+++ b/hw/next-kbd.h
@@ -0,0 +1,2 @@
+
+void nextkbd_init(void *opaque);
--
1.7.2.3
- [Qemu-devel] [RFC][PATCH 0/8] NeXT black hardware support, Bryce Lanham, 2011/08/17
- [Qemu-devel] [PATCH 0/8] *** SUBJECT HERE ***, Bryce Lanham, 2011/08/17
- [Qemu-devel] [PATCH 1/8] added next source files to Makefile.target, Bryce Lanham, 2011/08/17
- [Qemu-devel] [PATCH 3/8] next framebuffer driver, very basic, only supports running under 32 bit color at the moment, Bryce Lanham, 2011/08/17
- [Qemu-devel] [PATCH 4/8] next keyboard driver, only supports a subset of modifier keys,
Bryce Lanham <=
- [Qemu-devel] [PATCH 2/8] main next driver, needs a bit of cleanup, Bryce Lanham, 2011/08/17
- [Qemu-devel] [PATCH 5/8] partially working network driver, needs more comparison with real hardware before it can be made fully working, Bryce Lanham, 2011/08/17
- [Qemu-devel] [PATCH 6/8] adds SFC, DFC, MMU TC, access control register, and user stack pointer acces to movec_to/from, Bryce Lanham, 2011/08/17
- [Qemu-devel] [PATCH 7/8] added move16, cinva, pflush instructions, and disabled abort on execution of frestore/fsave, Bryce Lanham, 2011/08/17
- [Qemu-devel] [PATCH 8/8] added mmu tc, sfc, dfc, and access control registers to the cpu header, Bryce Lanham, 2011/08/17