kernel-ark/drivers/zorro/zorro.c
Tim Schmielau 4e57b68178 [PATCH] fix missing includes
I recently picked up my older work to remove unnecessary #includes of
sched.h, starting from a patch by Dave Jones to not include sched.h
from module.h. This reduces the number of indirect includes of sched.h
by ~300. Another ~400 pointless direct includes can be removed after
this disentangling (patch to follow later).
However, quite a few indirect includes need to be fixed up for this.

In order to feed the patches through -mm with as little disturbance as
possible, I've split out the fixes I accumulated up to now (complete for
i386 and x86_64, more archs to follow later) and post them before the real
patch.  This way this large part of the patch is kept simple with only
adding #includes, and all hunks are independent of each other.  So if any
hunk rejects or gets in the way of other patches, just drop it.  My scripts
will pick it up again in the next round.

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:32 -08:00

196 lines
5.0 KiB
C

/*
* $Id: zorro.c,v 1.1.2.1 1998/06/07 23:21:02 geert Exp $
*
* Zorro Bus Services
*
* Copyright (C) 1995-2003 Geert Uytterhoeven
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/zorro.h>
#include <linux/bitops.h>
#include <linux/string.h>
#include <asm/setup.h>
#include <asm/amigahw.h>
#include "zorro.h"
/*
* Zorro Expansion Devices
*/
u_int zorro_num_autocon = 0;
struct zorro_dev zorro_autocon[ZORRO_NUM_AUTO];
/*
* Single Zorro bus
*/
struct zorro_bus zorro_bus = {\
.resources = {
/* Zorro II regions (on Zorro II/III) */
{ .name = "Zorro II exp", .start = 0x00e80000, .end = 0x00efffff },
{ .name = "Zorro II mem", .start = 0x00200000, .end = 0x009fffff },
/* Zorro III regions (on Zorro III only) */
{ .name = "Zorro III exp", .start = 0xff000000, .end = 0xffffffff },
{ .name = "Zorro III cfg", .start = 0x40000000, .end = 0x7fffffff }
},
.name = "Zorro bus"
};
/*
* Find Zorro Devices
*/
struct zorro_dev *zorro_find_device(zorro_id id, struct zorro_dev *from)
{
struct zorro_dev *z;
if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO))
return NULL;
for (z = from ? from+1 : &zorro_autocon[0];
z < zorro_autocon+zorro_num_autocon;
z++)
if (id == ZORRO_WILDCARD || id == z->id)
return z;
return NULL;
}
/*
* Bitmask indicating portions of available Zorro II RAM that are unused
* by the system. Every bit represents a 64K chunk, for a maximum of 8MB
* (128 chunks, physical 0x00200000-0x009fffff).
*
* If you want to use (= allocate) portions of this RAM, you should clear
* the corresponding bits.
*
* Possible uses:
* - z2ram device
* - SCSI DMA bounce buffers
*
* FIXME: use the normal resource management
*/
DECLARE_BITMAP(zorro_unused_z2ram, 128);
static void __init mark_region(unsigned long start, unsigned long end,
int flag)
{
if (flag)
start += Z2RAM_CHUNKMASK;
else
end += Z2RAM_CHUNKMASK;
start &= ~Z2RAM_CHUNKMASK;
end &= ~Z2RAM_CHUNKMASK;
if (end <= Z2RAM_START || start >= Z2RAM_END)
return;
start = start < Z2RAM_START ? 0x00000000 : start-Z2RAM_START;
end = end > Z2RAM_END ? Z2RAM_SIZE : end-Z2RAM_START;
while (start < end) {
u32 chunk = start>>Z2RAM_CHUNKSHIFT;
if (flag)
set_bit(chunk, zorro_unused_z2ram);
else
clear_bit(chunk, zorro_unused_z2ram);
start += Z2RAM_CHUNKSIZE;
}
}
static struct resource __init *zorro_find_parent_resource(struct zorro_dev *z)
{
int i;
for (i = 0; i < zorro_bus.num_resources; i++)
if (zorro_resource_start(z) >= zorro_bus.resources[i].start &&
zorro_resource_end(z) <= zorro_bus.resources[i].end)
return &zorro_bus.resources[i];
return &iomem_resource;
}
/*
* Initialization
*/
static int __init zorro_init(void)
{
struct zorro_dev *z;
unsigned int i;
if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO))
return 0;
pr_info("Zorro: Probing AutoConfig expansion devices: %d device%s\n",
zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
/* Initialize the Zorro bus */
INIT_LIST_HEAD(&zorro_bus.devices);
strcpy(zorro_bus.dev.bus_id, "zorro");
device_register(&zorro_bus.dev);
/* Request the resources */
zorro_bus.num_resources = AMIGAHW_PRESENT(ZORRO3) ? 4 : 2;
for (i = 0; i < zorro_bus.num_resources; i++)
request_resource(&iomem_resource, &zorro_bus.resources[i]);
/* Register all devices */
for (i = 0; i < zorro_num_autocon; i++) {
z = &zorro_autocon[i];
z->id = (z->rom.er_Manufacturer<<16) | (z->rom.er_Product<<8);
if (z->id == ZORRO_PROD_GVP_EPC_BASE) {
/* GVP quirk */
unsigned long magic = zorro_resource_start(z)+0x8000;
z->id |= *(u16 *)ZTWO_VADDR(magic) & GVP_PRODMASK;
}
sprintf(z->name, "Zorro device %08x", z->id);
zorro_name_device(z);
z->resource.name = z->name;
if (request_resource(zorro_find_parent_resource(z), &z->resource))
printk(KERN_ERR "Zorro: Address space collision on device %s "
"[%lx:%lx]\n",
z->name, zorro_resource_start(z), zorro_resource_end(z));
sprintf(z->dev.bus_id, "%02x", i);
z->dev.parent = &zorro_bus.dev;
z->dev.bus = &zorro_bus_type;
device_register(&z->dev);
zorro_create_sysfs_dev_files(z);
}
/* Mark all available Zorro II memory */
zorro_for_each_dev(z) {
if (z->rom.er_Type & ERTF_MEMLIST)
mark_region(zorro_resource_start(z), zorro_resource_end(z)+1, 1);
}
/* Unmark all used Zorro II memory */
for (i = 0; i < m68k_num_memory; i++)
if (m68k_memory[i].addr < 16*1024*1024)
mark_region(m68k_memory[i].addr,
m68k_memory[i].addr+m68k_memory[i].size, 0);
return 0;
}
subsys_initcall(zorro_init);
EXPORT_SYMBOL(zorro_find_device);
EXPORT_SYMBOL(zorro_unused_z2ram);
MODULE_LICENSE("GPL");