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-rw-r--r--drivers/mca/mca-legacy.c329
1 files changed, 0 insertions, 329 deletions
diff --git a/drivers/mca/mca-legacy.c b/drivers/mca/mca-legacy.c
deleted file mode 100644
index 494f0c2001f..00000000000
--- a/drivers/mca/mca-legacy.c
+++ /dev/null
@@ -1,329 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8 -*- */
-
-/*
- * MCA bus support functions for legacy (2.4) API.
- *
- * Legacy API means the API that operates in terms of MCA slot number
- *
- * (C) 2002 James Bottomley <James.Bottomley@HansenPartnership.com>
- *
-**-----------------------------------------------------------------------------
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-**
-** 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-**-----------------------------------------------------------------------------
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/mca-legacy.h>
-#include <asm/io.h>
-
-/* NOTE: This structure is stack allocated */
-struct mca_find_adapter_info {
- int id;
- int slot;
- struct mca_device *mca_dev;
-};
-
-/* The purpose of this iterator is to loop over all the devices and
- * find the one with the smallest slot number that's just greater than
- * or equal to the required slot with a matching id */
-static int mca_find_adapter_callback(struct device *dev, void *data)
-{
- struct mca_find_adapter_info *info = data;
- struct mca_device *mca_dev = to_mca_device(dev);
-
- if(mca_dev->pos_id != info->id)
- return 0;
-
- if(mca_dev->slot < info->slot)
- return 0;
-
- if(!info->mca_dev || info->mca_dev->slot >= mca_dev->slot)
- info->mca_dev = mca_dev;
-
- return 0;
-}
-
-/**
- * mca_find_adapter - scan for adapters
- * @id: MCA identification to search for
- * @start: starting slot
- *
- * Search the MCA configuration for adapters matching the 16bit
- * ID given. The first time it should be called with start as zero
- * and then further calls made passing the return value of the
- * previous call until %MCA_NOTFOUND is returned.
- *
- * Disabled adapters are not reported.
- */
-
-int mca_find_adapter(int id, int start)
-{
- struct mca_find_adapter_info info;
-
- if(id == 0xffff)
- return MCA_NOTFOUND;
-
- info.slot = start;
- info.id = id;
- info.mca_dev = NULL;
-
- for(;;) {
- bus_for_each_dev(&mca_bus_type, NULL, &info, mca_find_adapter_callback);
-
- if(info.mca_dev == NULL)
- return MCA_NOTFOUND;
-
- if(info.mca_dev->status != MCA_ADAPTER_DISABLED)
- break;
-
- /* OK, found adapter but it was disabled. Go around
- * again, excluding the slot we just found */
-
- info.slot = info.mca_dev->slot + 1;
- info.mca_dev = NULL;
- }
-
- return info.mca_dev->slot;
-}
-EXPORT_SYMBOL(mca_find_adapter);
-
-/*--------------------------------------------------------------------*/
-
-/**
- * mca_find_unused_adapter - scan for unused adapters
- * @id: MCA identification to search for
- * @start: starting slot
- *
- * Search the MCA configuration for adapters matching the 16bit
- * ID given. The first time it should be called with start as zero
- * and then further calls made passing the return value of the
- * previous call until %MCA_NOTFOUND is returned.
- *
- * Adapters that have been claimed by drivers and those that
- * are disabled are not reported. This function thus allows a driver
- * to scan for further cards when some may already be driven.
- */
-
-int mca_find_unused_adapter(int id, int start)
-{
- struct mca_find_adapter_info info = { 0 };
-
- if (!MCA_bus || id == 0xffff)
- return MCA_NOTFOUND;
-
- info.slot = start;
- info.id = id;
- info.mca_dev = NULL;
-
- for(;;) {
- bus_for_each_dev(&mca_bus_type, NULL, &info, mca_find_adapter_callback);
-
- if(info.mca_dev == NULL)
- return MCA_NOTFOUND;
-
- if(info.mca_dev->status != MCA_ADAPTER_DISABLED
- && !info.mca_dev->driver_loaded)
- break;
-
- /* OK, found adapter but it was disabled or already in
- * use. Go around again, excluding the slot we just
- * found */
-
- info.slot = info.mca_dev->slot + 1;
- info.mca_dev = NULL;
- }
-
- return info.mca_dev->slot;
-}
-EXPORT_SYMBOL(mca_find_unused_adapter);
-
-/* NOTE: stack allocated structure */
-struct mca_find_device_by_slot_info {
- int slot;
- struct mca_device *mca_dev;
-};
-
-static int mca_find_device_by_slot_callback(struct device *dev, void *data)
-{
- struct mca_find_device_by_slot_info *info = data;
- struct mca_device *mca_dev = to_mca_device(dev);
-
- if(mca_dev->slot == info->slot)
- info->mca_dev = mca_dev;
-
- return 0;
-}
-
-struct mca_device *mca_find_device_by_slot(int slot)
-{
- struct mca_find_device_by_slot_info info;
-
- info.slot = slot;
- info.mca_dev = NULL;
-
- bus_for_each_dev(&mca_bus_type, NULL, &info, mca_find_device_by_slot_callback);
-
- return info.mca_dev;
-}
-
-/**
- * mca_read_stored_pos - read POS register from boot data
- * @slot: slot number to read from
- * @reg: register to read from
- *
- * Fetch a POS value that was stored at boot time by the kernel
- * when it scanned the MCA space. The register value is returned.
- * Missing or invalid registers report 0.
- */
-unsigned char mca_read_stored_pos(int slot, int reg)
-{
- struct mca_device *mca_dev = mca_find_device_by_slot(slot);
-
- if(!mca_dev)
- return 0;
-
- return mca_device_read_stored_pos(mca_dev, reg);
-}
-EXPORT_SYMBOL(mca_read_stored_pos);
-
-
-/**
- * mca_read_pos - read POS register from card
- * @slot: slot number to read from
- * @reg: register to read from
- *
- * Fetch a POS value directly from the hardware to obtain the
- * current value. This is much slower than mca_read_stored_pos and
- * may not be invoked from interrupt context. It handles the
- * deep magic required for onboard devices transparently.
- */
-
-unsigned char mca_read_pos(int slot, int reg)
-{
- struct mca_device *mca_dev = mca_find_device_by_slot(slot);
-
- if(!mca_dev)
- return 0;
-
- return mca_device_read_pos(mca_dev, reg);
-}
-EXPORT_SYMBOL(mca_read_pos);
-
-
-/**
- * mca_write_pos - read POS register from card
- * @slot: slot number to read from
- * @reg: register to read from
- * @byte: byte to write to the POS registers
- *
- * Store a POS value directly from the hardware. You should not
- * normally need to use this function and should have a very good
- * knowledge of MCA bus before you do so. Doing this wrongly can
- * damage the hardware.
- *
- * This function may not be used from interrupt context.
- *
- * Note that this a technically a Bad Thing, as IBM tech stuff says
- * you should only set POS values through their utilities.
- * However, some devices such as the 3c523 recommend that you write
- * back some data to make sure the configuration is consistent.
- * I'd say that IBM is right, but I like my drivers to work.
- *
- * This function can't do checks to see if multiple devices end up
- * with the same resources, so you might see magic smoke if someone
- * screws up.
- */
-
-void mca_write_pos(int slot, int reg, unsigned char byte)
-{
- struct mca_device *mca_dev = mca_find_device_by_slot(slot);
-
- if(!mca_dev)
- return;
-
- mca_device_write_pos(mca_dev, reg, byte);
-}
-EXPORT_SYMBOL(mca_write_pos);
-
-/**
- * mca_set_adapter_name - Set the description of the card
- * @slot: slot to name
- * @name: text string for the namen
- *
- * This function sets the name reported via /proc for this
- * adapter slot. This is for user information only. Setting a
- * name deletes any previous name.
- */
-
-void mca_set_adapter_name(int slot, char* name)
-{
- struct mca_device *mca_dev = mca_find_device_by_slot(slot);
-
- if(!mca_dev)
- return;
-
- mca_device_set_name(mca_dev, name);
-}
-EXPORT_SYMBOL(mca_set_adapter_name);
-
-/**
- * mca_mark_as_used - claim an MCA device
- * @slot: slot to claim
- * FIXME: should we make this threadsafe
- *
- * Claim an MCA slot for a device driver. If the
- * slot is already taken the function returns 1,
- * if it is not taken it is claimed and 0 is
- * returned.
- */
-
-int mca_mark_as_used(int slot)
-{
- struct mca_device *mca_dev = mca_find_device_by_slot(slot);
-
- if(!mca_dev)
- /* FIXME: this is actually a severe error */
- return 1;
-
- if(mca_device_claimed(mca_dev))
- return 1;
-
- mca_device_set_claim(mca_dev, 1);
-
- return 0;
-}
-EXPORT_SYMBOL(mca_mark_as_used);
-
-/**
- * mca_mark_as_unused - release an MCA device
- * @slot: slot to claim
- *
- * Release the slot for other drives to use.
- */
-
-void mca_mark_as_unused(int slot)
-{
- struct mca_device *mca_dev = mca_find_device_by_slot(slot);
-
- if(!mca_dev)
- return;
-
- mca_device_set_claim(mca_dev, 0);
-}
-EXPORT_SYMBOL(mca_mark_as_unused);
-