From 3cbee15b9a6be17645e908bf7706d582c3e17156 Mon Sep 17 00:00:00 2001
From: j_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sun, 28 Oct 2007 23:42:18 +0000
Subject: * sort the PowerPC target object files * make PowerPC NVRAM accessors
 generic to be able to use a MacIO NVRAM   instead of the M48T59 one * split
 PowerMac targets code:  - move all PowerMac related definitions and
 prototypes into hw/ppc_mac.h  - add hw/mac_dbdma.c, hw/mac_nvram.c and
 macio.c    which implements shared PowerMac devices  - define the g3bw
 machine in a new hw/ppc_oldworld.c file * Fix the g3bw target:  - fix the
 Grackle host PCI device  - connect the Heathrow PIC to the PowerPC 6xx bus
 pins

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3475 c046a42c-6fe2-441c-8c8c-71466251a162
---
 hw/mac_dbdma.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 hw/mac_dbdma.c

(limited to 'hw/mac_dbdma.c')

diff --git a/hw/mac_dbdma.c b/hw/mac_dbdma.c
new file mode 100644
index 0000000000..62c9746e7c
--- /dev/null
+++ b/hw/mac_dbdma.c
@@ -0,0 +1,79 @@
+/*
+ * PowerMac descriptor-based DMA emulation
+ *
+ * Copyright (c) 2005-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * 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 "vl.h"
+#include "ppc_mac.h"
+
+/* DBDMA: currently no op - should suffice right now */
+
+static void dbdma_writeb (void *opaque,
+                          target_phys_addr_t addr, uint32_t value)
+{
+    printf("%s: 0x" PADDRX " <= 0x%08x\n", __func__, addr, value);
+}
+
+static void dbdma_writew (void *opaque,
+                          target_phys_addr_t addr, uint32_t value)
+{
+}
+
+static void dbdma_writel (void *opaque,
+                          target_phys_addr_t addr, uint32_t value)
+{
+}
+
+static uint32_t dbdma_readb (void *opaque, target_phys_addr_t addr)
+{
+    printf("%s: 0x" PADDRX " => 0x00000000\n", __func__, addr);
+
+    return 0;
+}
+
+static uint32_t dbdma_readw (void *opaque, target_phys_addr_t addr)
+{
+    return 0;
+}
+
+static uint32_t dbdma_readl (void *opaque, target_phys_addr_t addr)
+{
+    return 0;
+}
+
+static CPUWriteMemoryFunc *dbdma_write[] = {
+    &dbdma_writeb,
+    &dbdma_writew,
+    &dbdma_writel,
+};
+
+static CPUReadMemoryFunc *dbdma_read[] = {
+    &dbdma_readb,
+    &dbdma_readw,
+    &dbdma_readl,
+};
+
+void dbdma_init (int *dbdma_mem_index)
+{
+    *dbdma_mem_index = cpu_register_io_memory(0, dbdma_read, dbdma_write, NULL);
+}
+
-- 
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