1 files changed, 114 insertions, 0 deletions
diff --git a/arch/sandbox/board/hostfile.c b/arch/sandbox/board/hostfile.c
new file mode 100644
index 0000000000..ad625d7a6e
--- /dev/null
+++ b/arch/sandbox/board/hostfile.c
@@ -0,0 +1,114 @@
+/*
+ * hostfile.c - use files from the host to simalute barebox devices
+ *
+ * Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <malloc.h>
+#include <mach/linux.h>
+#include <init.h>
+#include <errno.h>
+#include <mach/hostfile.h>
+#include <xfuncs.h>
+
+struct hf_priv {
+	struct cdev cdev;
+	struct hf_platform_data *pdata;
+};
+
+static ssize_t hf_read(struct cdev *cdev, void *buf, size_t count, ulong offset, ulong flags)
+{
+	struct hf_platform_data *hf = cdev->priv;
+	int fd = hf->fd;
+
+	if (linux_lseek(fd, offset) != offset)
+		return -EINVAL;
+
+	return linux_read(fd, buf, count);
+}
+
+static ssize_t hf_write(struct cdev *cdev, const void *buf, size_t count, ulong offset, ulong flags)
+{
+	struct hf_platform_data *hf = cdev->priv;
+	int fd = hf->fd;
+
+	if (linux_lseek(fd, offset) != offset)
+		return -EINVAL;
+
+	return linux_write(fd, buf, count);
+}
+
+static void hf_info(struct device_d *dev)
+{
+	struct hf_platform_data *hf = dev->platform_data;
+
+	printf("file: %s\n", hf->filename);
+}
+
+static struct file_operations hf_fops = {
+	.read  = hf_read,
+	.write = hf_write,
+};
+
+static int hf_probe(struct device_d *dev)
+{
+	struct hf_platform_data *hf = dev->platform_data;
+	struct hf_priv *priv = xzalloc(sizeof(*priv));
+
+	priv->pdata = hf;
+
+	priv->cdev.name = hf->name;
+	priv->cdev.size = hf->size;
+	priv->cdev.ops = &hf_fops;
+	priv->cdev.priv = hf;
+	devfs_create(&priv->cdev);
+
+	return 0;
+}
+
+static struct driver_d hf_drv = {
+	.name  = "hostfile",
+	.probe = hf_probe,
+	.info  = hf_info,
+};
+
+static int hf_init(void)
+{
+	return register_driver(&hf_drv);
+}
+
+device_initcall(hf_init);
+
+int barebox_register_filedev(struct hf_platform_data *hf)
+{
+	struct device_d *dev;
+
+	dev = xzalloc(sizeof(struct device_d));
+
+	dev->platform_data = hf;
+
+	strcpy(dev->name, "hostfile");
+	dev->size = hf->size;
+	dev->map_base = hf->map_base;
+
+	return register_device(dev);
+}
+