From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 drivers/zorro/proc.c | 139 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 drivers/zorro/proc.c

(limited to 'drivers/zorro/proc.c')

diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c
new file mode 100644
index 000000000000..1a409c2c320c
--- /dev/null
+++ b/drivers/zorro/proc.c
@@ -0,0 +1,139 @@
+/*
+ *	$Id: proc.c,v 1.1.2.1 1998/06/07 23:21:01 geert Exp $
+ *
+ *	Procfs interface for the Zorro bus.
+ *
+ *	Copyright (C) 1998-2003 Geert Uytterhoeven
+ *
+ *	Heavily based on the procfs interface for the PCI bus, which is
+ *
+ *	Copyright (C) 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ */
+
+#include <linux/types.h>
+#include <linux/zorro.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#include <asm/uaccess.h>
+#include <asm/amigahw.h>
+#include <asm/setup.h>
+
+static loff_t
+proc_bus_zorro_lseek(struct file *file, loff_t off, int whence)
+{
+	loff_t new = -1;
+
+	lock_kernel();
+	switch (whence) {
+	case 0:
+		new = off;
+		break;
+	case 1:
+		new = file->f_pos + off;
+		break;
+	case 2:
+		new = sizeof(struct ConfigDev) + off;
+		break;
+	}
+	if (new < 0 || new > sizeof(struct ConfigDev)) {
+		unlock_kernel();
+		return -EINVAL;
+	}
+	unlock_kernel();
+	return (file->f_pos = new);
+}
+
+static ssize_t
+proc_bus_zorro_read(struct file *file, char *buf, size_t nbytes, loff_t *ppos)
+{
+	struct inode *ino = file->f_dentry->d_inode;
+	struct proc_dir_entry *dp = PDE(ino);
+	struct zorro_dev *z = dp->data;
+	struct ConfigDev cd;
+	loff_t pos = *ppos;
+
+	if (pos >= sizeof(struct ConfigDev))
+		return 0;
+	if (nbytes >= sizeof(struct ConfigDev))
+		nbytes = sizeof(struct ConfigDev);
+	if (pos + nbytes > sizeof(struct ConfigDev))
+		nbytes = sizeof(struct ConfigDev) - pos;
+
+	/* Construct a ConfigDev */
+	memset(&cd, 0, sizeof(cd));
+	cd.cd_Rom = z->rom;
+	cd.cd_SlotAddr = z->slotaddr;
+	cd.cd_SlotSize = z->slotsize;
+	cd.cd_BoardAddr = (void *)zorro_resource_start(z);
+	cd.cd_BoardSize = zorro_resource_len(z);
+
+	if (copy_to_user(buf, &cd, nbytes))
+		return -EFAULT;
+	*ppos += nbytes;
+
+	return nbytes;
+}
+
+static struct file_operations proc_bus_zorro_operations = {
+	.llseek		= proc_bus_zorro_lseek,
+	.read		= proc_bus_zorro_read,
+};
+
+static int
+get_zorro_dev_info(char *buf, char **start, off_t pos, int count)
+{
+	u_int slot;
+	off_t at = 0;
+	int len, cnt;
+
+	for (slot = cnt = 0; slot < zorro_num_autocon && count > cnt; slot++) {
+		struct zorro_dev *z = &zorro_autocon[slot];
+		len = sprintf(buf, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot,
+			      z->id, zorro_resource_start(z),
+			      zorro_resource_len(z), z->rom.er_Type);
+		at += len;
+		if (at >= pos) {
+			if (!*start) {
+				*start = buf + (pos - (at - len));
+				cnt = at - pos;
+			} else
+				cnt += len;
+			buf += len;
+		}
+	}
+	return (count > cnt) ? cnt : count;
+}
+
+static struct proc_dir_entry *proc_bus_zorro_dir;
+
+static int __init zorro_proc_attach_device(u_int slot)
+{
+	struct proc_dir_entry *entry;
+	char name[4];
+
+	sprintf(name, "%02x", slot);
+	entry = create_proc_entry(name, 0, proc_bus_zorro_dir);
+	if (!entry)
+		return -ENOMEM;
+	entry->proc_fops = &proc_bus_zorro_operations;
+	entry->data = &zorro_autocon[slot];
+	entry->size = sizeof(struct zorro_dev);
+	return 0;
+}
+
+static int __init zorro_proc_init(void)
+{
+	u_int slot;
+
+	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
+		proc_bus_zorro_dir = proc_mkdir("zorro", proc_bus);
+		create_proc_info_entry("devices", 0, proc_bus_zorro_dir,
+				       get_zorro_dev_info);
+		for (slot = 0; slot < zorro_num_autocon; slot++)
+			zorro_proc_attach_device(slot);
+	}
+	return 0;
+}
+
+__initcall(zorro_proc_init);
-- 
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