EtraxFS board support, by Edgar E. Iglesias.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3364 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 122 insertions, 0 deletions

diff --git a/hw/etraxfs_ser.c b/hw/etraxfs_ser.c
new file mode 100644
index 0000000..3ff6ff7
--- /dev/null
+++ b/hw/etraxfs_ser.c
@@ -0,0 +1,122 @@
+/*
+ * QEMU ETRAX System Emulator
+ *
+ * Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include "vl.h"
+
+#define RW_TR_DMA_EN 0xb0026004
+#define RW_DOUT 0xb002601c
+#define RW_STAT_DIN 0xb0026020
+#define R_STAT_DIN 0xb0026024
+
+static uint32_t ser_readb (void *opaque, target_phys_addr_t addr)
+{
+	CPUState *env = opaque;
+	uint32_t r = 0;
+	printf ("%s %x pc=%x\n", __func__, addr, env->pc);
+	return r;
+}
+static uint32_t ser_readw (void *opaque, target_phys_addr_t addr)
+{
+	CPUState *env = opaque;
+	uint32_t r = 0;
+	printf ("%s %x pc=%x\n", __func__, addr, env->pc);
+	return r;
+}
+
+static uint32_t ser_readl (void *opaque, target_phys_addr_t addr)
+{
+	CPUState *env = opaque;
+	uint32_t r = 0;
+
+	switch (addr)
+	{
+		case RW_TR_DMA_EN:
+			break;
+		case R_STAT_DIN:
+			r |= 1 << 24; /* set tr_rdy.  */
+			r |= 1 << 22; /* set tr_idle.  */
+			break;
+
+		default:
+			printf ("%s %x p=%x\n", __func__, addr, env->pc);
+			break;
+	}
+	return r;
+}
+
+static void
+ser_writeb (void *opaque, target_phys_addr_t addr, uint32_t value)
+{
+	CPUState *env = opaque;
+	printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
+}
+static void
+ser_writew (void *opaque, target_phys_addr_t addr, uint32_t value)
+{
+	CPUState *env = opaque;
+	printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
+}
+static void
+ser_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
+{
+	CPUState *env = opaque;
+
+	switch (addr)
+	{
+		case RW_TR_DMA_EN:
+			break;
+		case RW_DOUT:
+			if (isprint(value) || isspace(value))
+				putchar(value);
+			else
+				putchar('.');
+			break;
+		default:
+			printf ("%s %x %x pc=%x\n",
+				__func__, addr, value, env->pc);
+			break;
+	}
+}
+
+static CPUReadMemoryFunc *ser_read[] = {
+    &ser_readb,
+    &ser_readw,
+    &ser_readl,
+};
+
+static CPUWriteMemoryFunc *ser_write[] = {
+    &ser_writeb,
+    &ser_writew,
+    &ser_writel,
+};
+
+void etraxfs_ser_init(CPUState *env, qemu_irq *irqs)
+{
+	int ser_regs;
+
+	ser_regs = cpu_register_io_memory(0, ser_read, ser_write, env);
+	cpu_register_physical_memory (0xb0026000, 0x3c, ser_regs);
+}