Hopefully this patch includes all the of feedback from the last one.
This patch adds a character device driver to allow user space access
to the aranym natfeats nfstderr.
Peace,
Stephen
Signed-off-by: Stephen R. Marenka <stephen@xxxxxxxxxxx>
--- linux-2.6.22/arch/m68k/emu/nfstderr.c.orig 1969-12-31 18:00:00.000000000 -0600
+++ linux-2.6.22/arch/m68k/emu/nfstderr.c 2008-01-12 09:53:13.000000000 -0600
@@ -0,0 +1,90 @@
+/*
+ * atari_nfstderr.c - ARAnyM NF_STDERR handler for GNU/Linux
+ *
+ * With this module you may write to the emulator's stderr output
+ * (the native console).
+ *
+ * Copyright (c) 2008 Stephen R. Marenka
+ *
+ * Based on the ARAnyM driver for FreeMiNT written by Standa Opichal.
+ *
+ * This software may be used and distributed according to the terms of
+ * the GNU General Public License (GPL), incorporated herein by reference.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/kernel.h> /* printk() */
+#include <linux/fs.h> /* everything... */
+#include <linux/errno.h> /* error codes */
+#include <linux/types.h> /* size_t */
+#include <linux/miscdevice.h>
+#include <asm/uaccess.h> /* copy_*_user */
+#include <asm/natfeat.h>
+
+/* natfeats id */
+int nfstderr_id;
+
+
+MODULE_AUTHOR("Stephen R. Marenka");
+MODULE_DESCRIPTION("ARAnyM NFstderr driver");
+MODULE_LICENSE("GPL");
+
+
+ssize_t nfstderr_write(struct file *filp, const char __user *str, size_t count,
+ loff_t *f_pos)
+{
+ char buf[68];
+ size_t retcount = count;
+
+ buf[64] = 0;
+ while (count > 64) {
+ copy_from_user(buf, str, 64);
+ nf_call(nfstderr_id, buf);
+ str += 64;
+ count -= 64;
+ }
+ copy_from_user(buf, str, count);
+ buf[count] = 0;
+ nf_call(nfstderr_id, buf);
+
+ return retcount;
+}
+
+struct file_operations nfstderr_fops = {
+ .owner = THIS_MODULE,
+ .write = nfstderr_write,
+};
+
+struct miscdevice nfstderr_misc = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "nfstderr",
+ .fops = &nfstderr_fops
+};
+
+int nfstderr_init_module(void)
+{
+ int result;
+
+ nfstderr_id = nf_get_id("NF_STDERR");
+ if (!nfstderr_id) {
+ printk(KERN_ERR "nfstderr: error can't find natfeats\n");
+ return -1;
+ }
+
+ result = misc_register(&nfstderr_misc);
+ if (result) {
+ printk(KERN_ERR "nfstderr: Unable to register misc device\n");
+ return result;
+ }
+ return 0;
+}
+
+void nfstderr_cleanup_module(void)
+{
+ misc_deregister(&nfstderr_misc);
+}
+
+module_init(nfstderr_init_module);
+module_exit(nfstderr_cleanup_module);
--- linux-2.6.22/arch/m68k/emu/Makefile.orig 2008-01-09 12:42:03.000000000 -0600
+++ linux-2.6.22/arch/m68k/emu/Makefile 2008-01-10 16:45:07.000000000 -0600
@@ -2,6 +2,6 @@
# Makefile for Linux arch/m68k/emu source directory
#
-obj-y += natfeat.o
+obj-y += natfeat.o nfstderr.o
obj-$(CONFIG_NFETH) += nfeth.o
--
Stephen R. Marenka If life's not fun, you're not doing it right!
<stephen@xxxxxxxxxxx>
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