File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c
new file mode 100644
index 0000000..6ac2579
--- /dev/null
+++ b/drivers/zorro/proc.c
@@ -0,0 +1,142 @@
+/*
+ * 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/seq_file.h>
+#include <linux/init.h>
+#include <linux/export.h>
+
+#include <asm/byteorder.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)
+{
+ return fixed_size_llseek(file, off, whence, sizeof(struct ConfigDev));
+}
+
+static ssize_t
+proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+{
+ struct zorro_dev *z = PDE_DATA(file_inode(file));
+ 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 = cpu_to_be16(z->slotaddr);
+ cd.cd_SlotSize = cpu_to_be16(z->slotsize);
+ cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
+ cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
+
+ if (copy_to_user(buf, (void *)&cd + pos, nbytes))
+ return -EFAULT;
+ *ppos += nbytes;
+
+ return nbytes;
+}
+
+static const struct file_operations proc_bus_zorro_operations = {
+ .owner = THIS_MODULE,
+ .llseek = proc_bus_zorro_lseek,
+ .read = proc_bus_zorro_read,
+};
+
+static void * zorro_seq_start(struct seq_file *m, loff_t *pos)
+{
+ return (*pos < zorro_num_autocon) ? pos : NULL;
+}
+
+static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos)
+{
+ (*pos)++;
+ return (*pos < zorro_num_autocon) ? pos : NULL;
+}
+
+static void zorro_seq_stop(struct seq_file *m, void *v)
+{
+}
+
+static int zorro_seq_show(struct seq_file *m, void *v)
+{
+ unsigned int slot = *(loff_t *)v;
+ struct zorro_dev *z = &zorro_autocon[slot];
+
+ seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
+ (unsigned long)zorro_resource_start(z),
+ (unsigned long)zorro_resource_len(z),
+ z->rom.er_Type);
+ return 0;
+}
+
+static const struct seq_operations zorro_devices_seq_ops = {
+ .start = zorro_seq_start,
+ .next = zorro_seq_next,
+ .stop = zorro_seq_stop,
+ .show = zorro_seq_show,
+};
+
+static int zorro_devices_proc_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &zorro_devices_seq_ops);
+}
+
+static const struct file_operations zorro_devices_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = zorro_devices_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static struct proc_dir_entry *proc_bus_zorro_dir;
+
+static int __init zorro_proc_attach_device(unsigned int slot)
+{
+ struct proc_dir_entry *entry;
+ char name[4];
+
+ sprintf(name, "%02x", slot);
+ entry = proc_create_data(name, 0, proc_bus_zorro_dir,
+ &proc_bus_zorro_operations,
+ &zorro_autocon[slot]);
+ if (!entry)
+ return -ENOMEM;
+ proc_set_size(entry, sizeof(struct zorro_dev));
+ return 0;
+}
+
+static int __init zorro_proc_init(void)
+{
+ unsigned int slot;
+
+ if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
+ proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
+ proc_create("devices", 0, proc_bus_zorro_dir,
+ &zorro_devices_proc_fops);
+ for (slot = 0; slot < zorro_num_autocon; slot++)
+ zorro_proc_attach_device(slot);
+ }
+ return 0;
+}
+
+device_initcall(zorro_proc_init);