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[TC] MIPS: TURBOchannel update to the driver model
This is a set of changes to convert support for the TURBOchannel bus to the driver model. It implements the usual set of calls similar to what other bus drivers have: tc_register_driver(), tc_unregister_driver(), etc. All the platform-specific bits have been removed and headers from asm-mips/dec/ have been merged into linux/tc.h, which should be included by drivers. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Maciej W. Rozycki
Ralf Baechle
parent
5986a2ec35
commit
b454cc6636
8 changed files with 395 additions and 327 deletions
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@ -3287,6 +3287,11 @@ L: vtun@office.satix.net
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W: http://vtun.sourceforge.net/tun
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W: http://vtun.sourceforge.net/tun
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S: Maintained
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S: Maintained
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TURBOCHANNEL SUBSYSTEM
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P: Maciej W. Rozycki
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M: macro@linux-mips.org
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S: Maintained
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U14-34F SCSI DRIVER
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U14-34F SCSI DRIVER
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P: Dario Ballabio
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P: Dario Ballabio
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M: ballabio_dario@emc.com
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M: ballabio_dario@emc.com
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@ -4,7 +4,7 @@
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# Object file lists.
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# Object file lists.
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obj-$(CONFIG_TC) += tc.o
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obj-$(CONFIG_TC) += tc.o tc-driver.o
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obj-$(CONFIG_ZS) += zs.o
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obj-$(CONFIG_ZS) += zs.o
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obj-$(CONFIG_VT) += lk201.o lk201-map.o lk201-remap.o
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obj-$(CONFIG_VT) += lk201.o lk201-map.o lk201-remap.o
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110
drivers/tc/tc-driver.c
Normal file
110
drivers/tc/tc-driver.c
Normal file
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@ -0,0 +1,110 @@
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/*
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* TURBOchannel driver services.
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*
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* Copyright (c) 2005 James Simmons
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* Copyright (c) 2006 Maciej W. Rozycki
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*
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* Loosely based on drivers/dio/dio-driver.c and
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* drivers/pci/pci-driver.c.
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*
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* This file is subject to the terms and conditions of the GNU
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* General Public License. See the file "COPYING" in the main
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* directory of this archive for more details.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/tc.h>
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/**
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* tc_register_driver - register a new TC driver
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* @drv: the driver structure to register
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*
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* Adds the driver structure to the list of registered drivers
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* Returns a negative value on error, otherwise 0.
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* If no error occurred, the driver remains registered even if
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* no device was claimed during registration.
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*/
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int tc_register_driver(struct tc_driver *tdrv)
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{
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return driver_register(&tdrv->driver);
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}
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EXPORT_SYMBOL(tc_register_driver);
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/**
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* tc_unregister_driver - unregister a TC driver
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* @drv: the driver structure to unregister
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*
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* Deletes the driver structure from the list of registered TC drivers,
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* gives it a chance to clean up by calling its remove() function for
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* each device it was responsible for, and marks those devices as
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* driverless.
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*/
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void tc_unregister_driver(struct tc_driver *tdrv)
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{
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driver_unregister(&tdrv->driver);
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}
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EXPORT_SYMBOL(tc_unregister_driver);
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/**
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* tc_match_device - tell if a TC device structure has a matching
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* TC device ID structure
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* @tdrv: the TC driver to earch for matching TC device ID strings
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* @tdev: the TC device structure to match against
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*
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* Used by a driver to check whether a TC device present in the
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* system is in its list of supported devices. Returns the matching
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* tc_device_id structure or %NULL if there is no match.
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*/
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const struct tc_device_id *tc_match_device(struct tc_driver *tdrv,
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struct tc_dev *tdev)
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{
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const struct tc_device_id *id = tdrv->id_table;
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if (id) {
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while (id->name[0] || id->vendor[0]) {
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if (strcmp(tdev->name, id->name) == 0 &&
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strcmp(tdev->vendor, id->vendor) == 0)
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return id;
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id++;
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}
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}
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return NULL;
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}
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EXPORT_SYMBOL(tc_match_device);
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/**
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* tc_bus_match - Tell if a device structure has a matching
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* TC device ID structure
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* @dev: the device structure to match against
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* @drv: the device driver to search for matching TC device ID strings
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*
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* Used by a driver to check whether a TC device present in the
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* system is in its list of supported devices. Returns 1 if there
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* is a match or 0 otherwise.
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*/
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static int tc_bus_match(struct device *dev, struct device_driver *drv)
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{
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struct tc_dev *tdev = to_tc_dev(dev);
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struct tc_driver *tdrv = to_tc_driver(drv);
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const struct tc_device_id *id;
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id = tc_match_device(tdrv, tdev);
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if (id)
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return 1;
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return 0;
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}
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struct bus_type tc_bus_type = {
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.name = "tc",
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.match = tc_bus_match,
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};
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EXPORT_SYMBOL(tc_bus_type);
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static int __init tc_driver_init(void)
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{
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return bus_register(&tc_bus_type);
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}
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postcore_initcall(tc_driver_init);
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337
drivers/tc/tc.c
337
drivers/tc/tc.c
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@ -1,254 +1,193 @@
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/*
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/*
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* tc-init: We assume the TURBOchannel to be up and running so
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* TURBOchannel bus services.
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* just probe for Modules and fill in the global data structure
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* tc_bus.
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*
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* Copyright (c) Harald Koerfgen, 1998
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* License. See the file "COPYING" in the main directory of this archive
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* Copyright (c) 2001, 2003, 2005, 2006 Maciej W. Rozycki
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* for more details.
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* Copyright (c) 2005 James Simmons
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*
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*
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* Copyright (c) Harald Koerfgen, 1998
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* This file is subject to the terms and conditions of the GNU
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* Copyright (c) 2001, 2003, 2005 Maciej W. Rozycki
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* General Public License. See the file "COPYING" in the main
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* directory of this archive for more details.
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*/
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*/
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#include <linux/compiler.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/kernel.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/string.h>
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#include <linux/tc.h>
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#include <linux/types.h>
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#include <linux/types.h>
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#include <asm/addrspace.h>
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#include <asm/errno.h>
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#include <asm/io.h>
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#include <asm/io.h>
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#include <asm/paccess.h>
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#include <asm/dec/machtype.h>
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static struct tc_bus tc_bus = {
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#include <asm/dec/prom.h>
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.name = "TURBOchannel",
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#include <asm/dec/tcinfo.h>
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};
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#include <asm/dec/tcmodule.h>
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#include <asm/dec/interrupts.h>
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MODULE_LICENSE("GPL");
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slot_info tc_bus[MAX_SLOT];
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static int num_tcslots;
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static tcinfo *info;
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/*
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/*
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* Interface to the world. Read comment in include/asm-mips/tc.h.
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* Probing for TURBOchannel modules.
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*/
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*/
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static void __init tc_bus_add_devices(struct tc_bus *tbus)
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int search_tc_card(const char *name)
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{
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{
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int slot;
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resource_size_t slotsize = tbus->info.slot_size << 20;
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slot_info *sip;
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resource_size_t extslotsize = tbus->ext_slot_size;
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resource_size_t slotaddr;
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for (slot = 0; slot < num_tcslots; slot++) {
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resource_size_t extslotaddr;
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sip = &tc_bus[slot];
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resource_size_t devsize;
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if ((sip->flags & FREE) &&
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void __iomem *module;
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(strncmp(sip->name, name, strlen(name)) == 0)) {
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struct tc_dev *tdev;
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return slot;
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}
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}
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return -ENODEV;
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}
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void claim_tc_card(int slot)
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{
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if (tc_bus[slot].flags & IN_USE) {
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printk("claim_tc_card: attempting to claim a card already in use\n");
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return;
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}
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tc_bus[slot].flags &= ~FREE;
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tc_bus[slot].flags |= IN_USE;
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}
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void release_tc_card(int slot)
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{
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if (tc_bus[slot].flags & FREE) {
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printk("release_tc_card: "
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"attempting to release a card already free\n");
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return;
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}
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tc_bus[slot].flags &= ~IN_USE;
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tc_bus[slot].flags |= FREE;
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}
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unsigned long get_tc_base_addr(int slot)
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{
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return tc_bus[slot].base_addr;
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}
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unsigned long get_tc_irq_nr(int slot)
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{
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return tc_bus[slot].interrupt;
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}
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unsigned long get_tc_speed(void)
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{
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return 100000 * (10000 / (unsigned long)info->clk_period);
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}
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/*
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* Probing for TURBOchannel modules
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*/
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static void __init tc_probe(unsigned long startaddr, unsigned long size,
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int slots)
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{
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unsigned long slotaddr;
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int i, slot, err;
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int i, slot, err;
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long offset;
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u8 pattern[4];
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u8 pattern[4];
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volatile u8 *module;
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long offset;
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for (slot = 0; slot < slots; slot++) {
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for (slot = 0; slot < tbus->num_tcslots; slot++) {
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slotaddr = startaddr + slot * size;
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slotaddr = tbus->slot_base + slot * slotsize;
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module = ioremap_nocache(slotaddr, size);
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extslotaddr = tbus->ext_slot_base + slot * extslotsize;
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module = ioremap_nocache(slotaddr, slotsize);
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BUG_ON(!module);
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BUG_ON(!module);
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offset = OLDCARD;
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offset = TC_OLDCARD;
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err = 0;
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err = 0;
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err |= get_dbe(pattern[0], module + OLDCARD + TC_PATTERN0);
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err |= tc_preadb(pattern + 0, module + offset + TC_PATTERN0);
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err |= get_dbe(pattern[1], module + OLDCARD + TC_PATTERN1);
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err |= tc_preadb(pattern + 1, module + offset + TC_PATTERN1);
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err |= get_dbe(pattern[2], module + OLDCARD + TC_PATTERN2);
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err |= tc_preadb(pattern + 2, module + offset + TC_PATTERN2);
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err |= get_dbe(pattern[3], module + OLDCARD + TC_PATTERN3);
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err |= tc_preadb(pattern + 3, module + offset + TC_PATTERN3);
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if (err) {
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if (err)
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iounmap(module);
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goto out_err;
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continue;
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}
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if (pattern[0] != 0x55 || pattern[1] != 0x00 ||
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if (pattern[0] != 0x55 || pattern[1] != 0x00 ||
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pattern[2] != 0xaa || pattern[3] != 0xff) {
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pattern[2] != 0xaa || pattern[3] != 0xff) {
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offset = NEWCARD;
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offset = TC_NEWCARD;
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err = 0;
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err = 0;
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err |= get_dbe(pattern[0], module + TC_PATTERN0);
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err |= tc_preadb(pattern + 0,
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err |= get_dbe(pattern[1], module + TC_PATTERN1);
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module + offset + TC_PATTERN0);
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err |= get_dbe(pattern[2], module + TC_PATTERN2);
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err |= tc_preadb(pattern + 1,
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err |= get_dbe(pattern[3], module + TC_PATTERN3);
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module + offset + TC_PATTERN1);
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if (err) {
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err |= tc_preadb(pattern + 2,
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iounmap(module);
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module + offset + TC_PATTERN2);
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continue;
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err |= tc_preadb(pattern + 3,
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}
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module + offset + TC_PATTERN3);
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if (err)
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goto out_err;
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}
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}
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if (pattern[0] != 0x55 || pattern[1] != 0x00 ||
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if (pattern[0] != 0x55 || pattern[1] != 0x00 ||
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pattern[2] != 0xaa || pattern[3] != 0xff) {
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pattern[2] != 0xaa || pattern[3] != 0xff)
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iounmap(module);
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goto out_err;
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continue;
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}
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/* Found a board, allocate it an entry in the list */
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tdev = kzalloc(sizeof(*tdev), GFP_KERNEL);
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if (!tdev) {
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printk(KERN_ERR "tc%x: unable to allocate tc_dev\n",
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slot);
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goto out_err;
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}
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sprintf(tdev->dev.bus_id, "tc%x", slot);
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tdev->bus = tbus;
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tdev->dev.parent = &tbus->dev;
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tdev->dev.bus = &tc_bus_type;
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tdev->slot = slot;
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tc_bus[slot].base_addr = slotaddr;
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for (i = 0; i < 8; i++) {
|
for (i = 0; i < 8; i++) {
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tc_bus[slot].firmware[i] =
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tdev->firmware[i] =
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module[TC_FIRM_VER + offset + 4 * i];
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readb(module + offset + TC_FIRM_VER + 4 * i);
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tc_bus[slot].vendor[i] =
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tdev->vendor[i] =
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module[TC_VENDOR + offset + 4 * i];
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readb(module + offset + TC_VENDOR + 4 * i);
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tc_bus[slot].name[i] =
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tdev->name[i] =
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module[TC_MODULE + offset + 4 * i];
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readb(module + offset + TC_MODULE + 4 * i);
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}
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tc_bus[slot].firmware[8] = 0;
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tc_bus[slot].vendor[8] = 0;
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tc_bus[slot].name[8] = 0;
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/*
|
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* Looks unneccesary, but we may change
|
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* TC? in the future
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*/
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switch (slot) {
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case 0:
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tc_bus[slot].interrupt = dec_interrupt[DEC_IRQ_TC0];
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break;
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case 1:
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tc_bus[slot].interrupt = dec_interrupt[DEC_IRQ_TC1];
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break;
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case 2:
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tc_bus[slot].interrupt = dec_interrupt[DEC_IRQ_TC2];
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break;
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/*
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* Yuck! DS5000/200 onboard devices
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*/
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case 5:
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tc_bus[slot].interrupt = dec_interrupt[DEC_IRQ_TC5];
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break;
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case 6:
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tc_bus[slot].interrupt = dec_interrupt[DEC_IRQ_TC6];
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break;
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default:
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tc_bus[slot].interrupt = -1;
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break;
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}
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}
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||||||
|
tdev->firmware[8] = 0;
|
||||||
|
tdev->vendor[8] = 0;
|
||||||
|
tdev->name[8] = 0;
|
||||||
|
|
||||||
|
pr_info("%s: %s %s %s\n", tdev->dev.bus_id, tdev->vendor,
|
||||||
|
tdev->name, tdev->firmware);
|
||||||
|
|
||||||
|
devsize = readb(module + offset + TC_SLOT_SIZE);
|
||||||
|
devsize <<= 22;
|
||||||
|
if (devsize <= slotsize) {
|
||||||
|
tdev->resource.start = slotaddr;
|
||||||
|
tdev->resource.end = slotaddr + devsize - 1;
|
||||||
|
} else if (devsize <= extslotsize) {
|
||||||
|
tdev->resource.start = extslotaddr;
|
||||||
|
tdev->resource.end = extslotaddr + devsize - 1;
|
||||||
|
} else {
|
||||||
|
printk(KERN_ERR "%s: Cannot provide slot space "
|
||||||
|
"(%dMiB required, up to %dMiB supported)\n",
|
||||||
|
tdev->dev.bus_id, devsize >> 20,
|
||||||
|
max(slotsize, extslotsize) >> 20);
|
||||||
|
kfree(tdev);
|
||||||
|
goto out_err;
|
||||||
|
}
|
||||||
|
tdev->resource.name = tdev->name;
|
||||||
|
tdev->resource.flags = IORESOURCE_MEM;
|
||||||
|
|
||||||
|
tc_device_get_irq(tdev);
|
||||||
|
|
||||||
|
device_register(&tdev->dev);
|
||||||
|
list_add_tail(&tdev->node, &tbus->devices);
|
||||||
|
|
||||||
|
out_err:
|
||||||
iounmap(module);
|
iounmap(module);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* the main entry
|
* The main entry.
|
||||||
*/
|
*/
|
||||||
static int __init tc_init(void)
|
static int __init tc_init(void)
|
||||||
{
|
{
|
||||||
int tc_clock;
|
/* Initialize the TURBOchannel bus */
|
||||||
int i;
|
if (tc_bus_get_info(&tc_bus))
|
||||||
unsigned long slot0addr;
|
|
||||||
unsigned long slot_size;
|
|
||||||
|
|
||||||
if (!TURBOCHANNEL)
|
|
||||||
return 0;
|
return 0;
|
||||||
|
|
||||||
for (i = 0; i < MAX_SLOT; i++) {
|
INIT_LIST_HEAD(&tc_bus.devices);
|
||||||
tc_bus[i].base_addr = 0;
|
strcpy(tc_bus.dev.bus_id, "tc");
|
||||||
tc_bus[i].name[0] = 0;
|
device_register(&tc_bus.dev);
|
||||||
tc_bus[i].vendor[0] = 0;
|
|
||||||
tc_bus[i].firmware[0] = 0;
|
|
||||||
tc_bus[i].interrupt = -1;
|
|
||||||
tc_bus[i].flags = FREE;
|
|
||||||
}
|
|
||||||
|
|
||||||
info = rex_gettcinfo();
|
if (tc_bus.info.slot_size) {
|
||||||
slot0addr = CPHYSADDR((long)rex_slot_address(0));
|
unsigned int tc_clock = tc_get_speed(&tc_bus) / 100000;
|
||||||
|
|
||||||
switch (mips_machtype) {
|
pr_info("tc: TURBOchannel rev. %d at %d.%d MHz "
|
||||||
case MACH_DS5000_200:
|
"(with%s parity)\n", tc_bus.info.revision,
|
||||||
num_tcslots = 7;
|
tc_clock / 10, tc_clock % 10,
|
||||||
break;
|
tc_bus.info.parity ? "" : "out");
|
||||||
case MACH_DS5000_1XX:
|
|
||||||
case MACH_DS5000_2X0:
|
|
||||||
case MACH_DS5900:
|
|
||||||
num_tcslots = 3;
|
|
||||||
break;
|
|
||||||
case MACH_DS5000_XX:
|
|
||||||
default:
|
|
||||||
num_tcslots = 2;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
tc_clock = 10000 / info->clk_period;
|
tc_bus.resource[0].start = tc_bus.slot_base;
|
||||||
|
tc_bus.resource[0].end = tc_bus.slot_base +
|
||||||
if (info->slot_size && slot0addr) {
|
(tc_bus.info.slot_size << 20) *
|
||||||
pr_info("TURBOchannel rev. %d at %d.%d MHz (with%s parity)\n",
|
tc_bus.num_tcslots;
|
||||||
info->revision, tc_clock / 10, tc_clock % 10,
|
tc_bus.resource[0].name = tc_bus.name;
|
||||||
info->parity ? "" : "out");
|
tc_bus.resource[0].flags = IORESOURCE_MEM;
|
||||||
|
if (request_resource(&iomem_resource,
|
||||||
slot_size = info->slot_size << 20;
|
&tc_bus.resource[0]) < 0) {
|
||||||
|
printk(KERN_ERR "tc: Cannot reserve resource\n");
|
||||||
tc_probe(slot0addr, slot_size, num_tcslots);
|
return 0;
|
||||||
|
|
||||||
for (i = 0; i < num_tcslots; i++) {
|
|
||||||
if (!tc_bus[i].base_addr)
|
|
||||||
continue;
|
|
||||||
pr_info(" slot %d: %s %s %s\n", i, tc_bus[i].vendor,
|
|
||||||
tc_bus[i].name, tc_bus[i].firmware);
|
|
||||||
}
|
}
|
||||||
|
if (tc_bus.ext_slot_size) {
|
||||||
|
tc_bus.resource[1].start = tc_bus.ext_slot_base;
|
||||||
|
tc_bus.resource[1].end = tc_bus.ext_slot_base +
|
||||||
|
tc_bus.ext_slot_size *
|
||||||
|
tc_bus.num_tcslots;
|
||||||
|
tc_bus.resource[1].name = tc_bus.name;
|
||||||
|
tc_bus.resource[1].flags = IORESOURCE_MEM;
|
||||||
|
if (request_resource(&iomem_resource,
|
||||||
|
&tc_bus.resource[1]) < 0) {
|
||||||
|
printk(KERN_ERR
|
||||||
|
"tc: Cannot reserve resource\n");
|
||||||
|
release_resource(&tc_bus.resource[0]);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
tc_bus_add_devices(&tc_bus);
|
||||||
}
|
}
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
subsys_initcall(tc_init);
|
subsys_initcall(tc_init);
|
||||||
|
|
||||||
EXPORT_SYMBOL(search_tc_card);
|
|
||||||
EXPORT_SYMBOL(claim_tc_card);
|
|
||||||
EXPORT_SYMBOL(release_tc_card);
|
|
||||||
EXPORT_SYMBOL(get_tc_base_addr);
|
|
||||||
EXPORT_SYMBOL(get_tc_irq_nr);
|
|
||||||
EXPORT_SYMBOL(get_tc_speed);
|
|
||||||
|
|
|
||||||
|
|
@ -1,41 +0,0 @@
|
||||||
/*
|
|
||||||
* Interface to the TURBOchannel related routines
|
|
||||||
*
|
|
||||||
* 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.
|
|
||||||
*
|
|
||||||
* Copyright (c) 1998 Harald Koerfgen
|
|
||||||
*/
|
|
||||||
#ifndef __ASM_DEC_TC_H
|
|
||||||
#define __ASM_DEC_TC_H
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Search for a TURBOchannel Option Module
|
|
||||||
* with a certain name. Returns slot number
|
|
||||||
* of the first card not in use or -ENODEV
|
|
||||||
* if none found.
|
|
||||||
*/
|
|
||||||
extern int search_tc_card(const char *);
|
|
||||||
/*
|
|
||||||
* Marks the card in slot as used
|
|
||||||
*/
|
|
||||||
extern void claim_tc_card(int);
|
|
||||||
/*
|
|
||||||
* Marks the card in slot as free
|
|
||||||
*/
|
|
||||||
extern void release_tc_card(int);
|
|
||||||
/*
|
|
||||||
* Return base address of card in slot
|
|
||||||
*/
|
|
||||||
extern unsigned long get_tc_base_addr(int);
|
|
||||||
/*
|
|
||||||
* Return interrupt number of slot
|
|
||||||
*/
|
|
||||||
extern unsigned long get_tc_irq_nr(int);
|
|
||||||
/*
|
|
||||||
* Return TURBOchannel clock frequency in Hz
|
|
||||||
*/
|
|
||||||
extern unsigned long get_tc_speed(void);
|
|
||||||
|
|
||||||
#endif /* __ASM_DEC_TC_H */
|
|
||||||
|
|
@ -1,47 +0,0 @@
|
||||||
/*
|
|
||||||
* Various TURBOchannel related stuff
|
|
||||||
*
|
|
||||||
* 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.
|
|
||||||
*
|
|
||||||
* Information obtained through the get_tcinfo prom call
|
|
||||||
* created from:
|
|
||||||
*
|
|
||||||
* TURBOchannel Firmware Specification
|
|
||||||
*
|
|
||||||
* EK-TCAAD-FS-004
|
|
||||||
* from Digital Equipment Corporation
|
|
||||||
*
|
|
||||||
* Copyright (c) 1998 Harald Koerfgen
|
|
||||||
*/
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
int revision;
|
|
||||||
int clk_period;
|
|
||||||
int slot_size;
|
|
||||||
int io_timeout;
|
|
||||||
int dma_range;
|
|
||||||
int max_dma_burst;
|
|
||||||
int parity;
|
|
||||||
int reserved[4];
|
|
||||||
} tcinfo;
|
|
||||||
|
|
||||||
#define MAX_SLOT 7
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
unsigned long base_addr;
|
|
||||||
unsigned char name[9];
|
|
||||||
unsigned char vendor[9];
|
|
||||||
unsigned char firmware[9];
|
|
||||||
int interrupt;
|
|
||||||
int flags;
|
|
||||||
} slot_info;
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Values for flags
|
|
||||||
*/
|
|
||||||
#define FREE 1<<0
|
|
||||||
#define IN_USE 1<<1
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -1,39 +0,0 @@
|
||||||
/*
|
|
||||||
* 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.
|
|
||||||
*
|
|
||||||
* Offsets for the ROM header locations for
|
|
||||||
* TURBOchannel cards
|
|
||||||
*
|
|
||||||
* created from:
|
|
||||||
*
|
|
||||||
* TURBOchannel Firmware Specification
|
|
||||||
*
|
|
||||||
* EK-TCAAD-FS-004
|
|
||||||
* from Digital Equipment Corporation
|
|
||||||
*
|
|
||||||
* Jan.1998 Harald Koerfgen
|
|
||||||
*/
|
|
||||||
#ifndef __ASM_DEC_TCMODULE_H
|
|
||||||
#define __ASM_DEC_TCMODULE_H
|
|
||||||
|
|
||||||
#define OLDCARD 0x3c0000
|
|
||||||
#define NEWCARD 0x000000
|
|
||||||
|
|
||||||
#define TC_ROM_WIDTH 0x3e0
|
|
||||||
#define TC_ROM_STRIDE 0x3e4
|
|
||||||
#define TC_ROM_SIZE 0x3e8
|
|
||||||
#define TC_SLOT_SIZE 0x3ec
|
|
||||||
#define TC_PATTERN0 0x3f0
|
|
||||||
#define TC_PATTERN1 0x3f4
|
|
||||||
#define TC_PATTERN2 0x3f8
|
|
||||||
#define TC_PATTERN3 0x3fc
|
|
||||||
#define TC_FIRM_VER 0x400
|
|
||||||
#define TC_VENDOR 0x420
|
|
||||||
#define TC_MODULE 0x440
|
|
||||||
#define TC_FIRM_TYPE 0x460
|
|
||||||
#define TC_FLAGS 0x470
|
|
||||||
#define TC_ROM_OBJECTS 0x480
|
|
||||||
|
|
||||||
#endif /* __ASM_DEC_TCMODULE_H */
|
|
||||||
141
include/linux/tc.h
Normal file
141
include/linux/tc.h
Normal file
|
|
@ -0,0 +1,141 @@
|
||||||
|
/*
|
||||||
|
* Interface to the TURBOchannel related routines.
|
||||||
|
*
|
||||||
|
* Copyright (c) 1998 Harald Koerfgen
|
||||||
|
* Copyright (c) 2005 James Simmons
|
||||||
|
* Copyright (c) 2006 Maciej W. Rozycki
|
||||||
|
*
|
||||||
|
* Based on:
|
||||||
|
*
|
||||||
|
* "TURBOchannel Firmware Specification", EK-TCAAD-FS-004
|
||||||
|
*
|
||||||
|
* from Digital Equipment Corporation.
|
||||||
|
*
|
||||||
|
* 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.
|
||||||
|
*/
|
||||||
|
#ifndef _LINUX_TC_H
|
||||||
|
#define _LINUX_TC_H
|
||||||
|
|
||||||
|
#include <linux/compiler.h>
|
||||||
|
#include <linux/device.h>
|
||||||
|
#include <linux/ioport.h>
|
||||||
|
#include <linux/types.h>
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Offsets for the ROM header locations for TURBOchannel cards.
|
||||||
|
*/
|
||||||
|
#define TC_OLDCARD 0x3c0000
|
||||||
|
#define TC_NEWCARD 0x000000
|
||||||
|
|
||||||
|
#define TC_ROM_WIDTH 0x3e0
|
||||||
|
#define TC_ROM_STRIDE 0x3e4
|
||||||
|
#define TC_ROM_SIZE 0x3e8
|
||||||
|
#define TC_SLOT_SIZE 0x3ec
|
||||||
|
#define TC_PATTERN0 0x3f0
|
||||||
|
#define TC_PATTERN1 0x3f4
|
||||||
|
#define TC_PATTERN2 0x3f8
|
||||||
|
#define TC_PATTERN3 0x3fc
|
||||||
|
#define TC_FIRM_VER 0x400
|
||||||
|
#define TC_VENDOR 0x420
|
||||||
|
#define TC_MODULE 0x440
|
||||||
|
#define TC_FIRM_TYPE 0x460
|
||||||
|
#define TC_FLAGS 0x470
|
||||||
|
#define TC_ROM_OBJECTS 0x480
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Information obtained through the get_tcinfo() PROM call.
|
||||||
|
*/
|
||||||
|
struct tcinfo {
|
||||||
|
s32 revision; /* Hardware revision level. */
|
||||||
|
s32 clk_period; /* Clock period in nanoseconds. */
|
||||||
|
s32 slot_size; /* Slot size in megabytes. */
|
||||||
|
s32 io_timeout; /* I/O timeout in cycles. */
|
||||||
|
s32 dma_range; /* DMA address range in megabytes. */
|
||||||
|
s32 max_dma_burst; /* Maximum DMA burst length. */
|
||||||
|
s32 parity; /* System module supports TC parity. */
|
||||||
|
s32 reserved[4];
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* TURBOchannel bus.
|
||||||
|
*/
|
||||||
|
struct tc_bus {
|
||||||
|
struct list_head devices; /* List of devices on this bus. */
|
||||||
|
struct resource resource[2]; /* Address space routed to this bus. */
|
||||||
|
|
||||||
|
struct device dev;
|
||||||
|
char name[13];
|
||||||
|
resource_size_t slot_base;
|
||||||
|
resource_size_t ext_slot_base;
|
||||||
|
resource_size_t ext_slot_size;
|
||||||
|
int num_tcslots;
|
||||||
|
struct tcinfo info;
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* TURBOchannel device.
|
||||||
|
*/
|
||||||
|
struct tc_dev {
|
||||||
|
struct list_head node; /* Node in list of all TC devices. */
|
||||||
|
struct tc_bus *bus; /* Bus this device is on. */
|
||||||
|
struct tc_driver *driver; /* Which driver has allocated this
|
||||||
|
device. */
|
||||||
|
struct device dev; /* Generic device interface. */
|
||||||
|
struct resource resource; /* Address space of this device. */
|
||||||
|
char vendor[9];
|
||||||
|
char name[9];
|
||||||
|
char firmware[9];
|
||||||
|
int interrupt;
|
||||||
|
int slot;
|
||||||
|
};
|
||||||
|
|
||||||
|
#define to_tc_dev(n) container_of(n, struct tc_dev, dev)
|
||||||
|
|
||||||
|
struct tc_device_id {
|
||||||
|
char vendor[9];
|
||||||
|
char name[9];
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* TURBOchannel driver.
|
||||||
|
*/
|
||||||
|
struct tc_driver {
|
||||||
|
struct list_head node;
|
||||||
|
const struct tc_device_id *id_table;
|
||||||
|
struct device_driver driver;
|
||||||
|
};
|
||||||
|
|
||||||
|
#define to_tc_driver(drv) container_of(drv, struct tc_driver, driver)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Return TURBOchannel clock frequency in Hz.
|
||||||
|
*/
|
||||||
|
static inline unsigned long tc_get_speed(struct tc_bus *tbus)
|
||||||
|
{
|
||||||
|
return 100000 * (10000 / (unsigned long)tbus->info.clk_period);
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef CONFIG_TC
|
||||||
|
|
||||||
|
extern struct bus_type tc_bus_type;
|
||||||
|
|
||||||
|
extern int tc_register_driver(struct tc_driver *tdrv);
|
||||||
|
extern void tc_unregister_driver(struct tc_driver *tdrv);
|
||||||
|
|
||||||
|
#else /* !CONFIG_TC */
|
||||||
|
|
||||||
|
static inline int tc_register_driver(struct tc_driver *tdrv) { return 0; }
|
||||||
|
static inline void tc_unregister_driver(struct tc_driver *tdrv) { }
|
||||||
|
|
||||||
|
#endif /* CONFIG_TC */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* These have to be provided by the architecture.
|
||||||
|
*/
|
||||||
|
extern int tc_preadb(u8 *valp, void __iomem *addr);
|
||||||
|
extern int tc_bus_get_info(struct tc_bus *tbus);
|
||||||
|
extern void tc_device_get_irq(struct tc_dev *tdev);
|
||||||
|
|
||||||
|
#endif /* _LINUX_TC_H */
|
||||||
Loading…
Add table
Add a link
Reference in a new issue