pcnet: split away lance.c (sparc32 code).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2025-12-16 17:18:49 +00:00 · 2009-10-21 15:25:33 +02:00
parent 7622483395
commit 94e1a912b2
4 changed files with 195 additions and 146 deletions
--- a/hw/lance.c
+++ b/hw/lance.c
@@ -0,0 +1,146 @@
+/*
+ * QEMU AMD PC-Net II (Am79C970A) emulation
+ *
+ * Copyright (c) 2004 Antony T Curtis
+ *
+ * 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 software was written to be compatible with the specification:
+ * AMD Am79C970A PCnet-PCI II Ethernet Controller Data-Sheet
+ * AMD Publication# 19436  Rev:E  Amendment/0  Issue Date: June 2000
+ */
+
+/*
+ * On Sparc32, this is the Lance (Am7990) part of chip STP2000 (Master I/O), also
+ * produced as NCR89C100. See
+ * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C100.txt
+ * and
+ * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR92C990.txt
+ */
+
+#include "sysbus.h"
+#include "net.h"
+#include "qemu-timer.h"
+#include "qemu_socket.h"
+#include "sun4m.h"
+
+#include "pcnet.h"
+
+typedef struct {
+    SysBusDevice busdev;
+    PCNetState state;
+} SysBusPCNetState;
+
+static void parent_lance_reset(void *opaque, int irq, int level)
+{
+    SysBusPCNetState *d = opaque;
+    if (level)
+        pcnet_h_reset(&d->state);
+}
+
+static void lance_mem_writew(void *opaque, target_phys_addr_t addr,
+                             uint32_t val)
+{
+    SysBusPCNetState *d = opaque;
+#ifdef PCNET_DEBUG_IO
+    printf("lance_mem_writew addr=" TARGET_FMT_plx " val=0x%04x\n", addr,
+           val & 0xffff);
+#endif
+    pcnet_ioport_writew(&d->state, addr, val & 0xffff);
+}
+
+static uint32_t lance_mem_readw(void *opaque, target_phys_addr_t addr)
+{
+    SysBusPCNetState *d = opaque;
+    uint32_t val;
+
+    val = pcnet_ioport_readw(&d->state, addr);
+#ifdef PCNET_DEBUG_IO
+    printf("lance_mem_readw addr=" TARGET_FMT_plx " val = 0x%04x\n", addr,
+           val & 0xffff);
+#endif
+
+    return val & 0xffff;
+}
+
+static CPUReadMemoryFunc * const lance_mem_read[3] = {
+    NULL,
+    lance_mem_readw,
+    NULL,
+};
+
+static CPUWriteMemoryFunc * const lance_mem_write[3] = {
+    NULL,
+    lance_mem_writew,
+    NULL,
+};
+
+static void lance_cleanup(VLANClientState *vc)
+{
+    PCNetState *d = vc->opaque;
+
+    pcnet_common_cleanup(d);
+}
+
+static int lance_init(SysBusDevice *dev)
+{
+    SysBusPCNetState *d = FROM_SYSBUS(SysBusPCNetState, dev);
+    PCNetState *s = &d->state;
+
+    s->mmio_index =
+        cpu_register_io_memory(lance_mem_read, lance_mem_write, d);
+
+    qdev_init_gpio_in(&dev->qdev, parent_lance_reset, 1);
+
+    sysbus_init_mmio(dev, 4, s->mmio_index);
+
+    sysbus_init_irq(dev, &s->irq);
+
+    s->phys_mem_read = ledma_memory_read;
+    s->phys_mem_write = ledma_memory_write;
+
+    register_savevm("pcnet", -1, 3, pcnet_save, pcnet_load, s);
+    return pcnet_common_init(&dev->qdev, s, lance_cleanup);
+}
+
+static void lance_reset(DeviceState *dev)
+{
+    SysBusPCNetState *d = DO_UPCAST(SysBusPCNetState, busdev.qdev, dev);
+
+    pcnet_h_reset(&d->state);
+}
+
+static SysBusDeviceInfo lance_info = {
+    .init       = lance_init,
+    .qdev.name  = "lance",
+    .qdev.size  = sizeof(SysBusPCNetState),
+    .qdev.reset = lance_reset,
+    .qdev.props = (Property[]) {
+        DEFINE_PROP_PTR("dma", SysBusPCNetState, state.dma_opaque),
+        DEFINE_NIC_PROPERTIES(SysBusPCNetState, state.conf),
+        DEFINE_PROP_END_OF_LIST(),
+    }
+};
+
+static void lance_register_devices(void)
+{
+    sysbus_register_withprop(&lance_info);
+}
+device_init(lance_register_devices)