cdl.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:4k
- /* $Id$
- *
- * 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) 1992 - 1997, 2000-2002 Silicon Graphics, Inc. All rights reserved.
- */
- #include <linux/types.h>
- #include <asm/sn/sgi.h>
- #include <asm/io.h>
- #include <asm/sn/invent.h>
- #include <asm/sn/hcl.h>
- #include <asm/sn/pci/bridge.h>
- #include "asm/sn/ioerror_handling.h"
- #include <asm/sn/xtalk/xbow.h>
- /* these get called directly in cdl_add_connpt in fops bypass hack */
- extern int pcibr_attach(devfs_handle_t);
- extern int xbow_attach(devfs_handle_t);
- /*
- * cdl: Connection and Driver List
- *
- * We are not porting this to Linux. Devices are registered via
- * the normal Linux PCI layer. This is a very simplified version
- * of cdl that will allow us to register and call our very own
- * IO Infrastructure Drivers e.g. pcibr.
- */
- struct cdl {
- int part_num;
- int mfg_num;
- int (*attach) (devfs_handle_t);
- } dummy_reg;
- #define MAX_SGI_IO_INFRA_DRVR 4
- struct cdl sgi_infrastructure_drivers[MAX_SGI_IO_INFRA_DRVR] =
- {
- { XBRIDGE_WIDGET_PART_NUM, XBRIDGE_WIDGET_MFGR_NUM, pcibr_attach /* &pcibr_fops */},
- { BRIDGE_WIDGET_PART_NUM, BRIDGE_WIDGET_MFGR_NUM, pcibr_attach /* &pcibr_fops */},
- { XXBOW_WIDGET_PART_NUM, XXBOW_WIDGET_MFGR_NUM, xbow_attach /* &xbow_fops */},
- { XBOW_WIDGET_PART_NUM, XBOW_WIDGET_MFGR_NUM, xbow_attach /* &xbow_fops */},
- };
- /*
- * cdl_new: Called by pciio and xtalk.
- */
- cdl_p
- cdl_new(char *name, char *k1str, char *k2str)
- {
- /*
- * Just return a dummy pointer.
- */
- return((cdl_p)&dummy_reg);
- }
- /*
- * cdl_del: Do nothing.
- */
- void
- cdl_del(cdl_p reg)
- {
- return;
- }
- /*
- * cdl_add_driver: The driver part number and manufacturers number
- * are statically initialized above.
- *
- Do nothing.
- */
- int
- cdl_add_driver(cdl_p reg, int key1, int key2, char *prefix, int flags, cdl_drv_f *func)
- {
- return 0;
- }
- /*
- * cdl_del_driver: Not supported.
- */
- void
- cdl_del_driver(cdl_p reg, char *prefix, cdl_drv_f *func)
- {
- return;
- }
- /*
- * cdl_add_connpt: We found a device and it's connect point. Call the
- * attach routine of that driver.
- *
- * May need support for pciba registration here ...
- *
- * This routine use to create /hw/.id/pci/.../.. that links to
- * /hw/module/006c06/Pbrick/xtalk/15/pci/<slotnum> .. do we still need
- * it? The specified driver attach routine does not reference these
- * vertices.
- */
- int
- cdl_add_connpt(cdl_p reg, int part_num, int mfg_num,
- devfs_handle_t connpt, int drv_flags)
- {
- int i;
-
- /*
- * Find the driver entry point and call the attach routine.
- */
- for (i = 0; i < MAX_SGI_IO_INFRA_DRVR; i++) {
- if ( (part_num == sgi_infrastructure_drivers[i].part_num) &&
- ( mfg_num == sgi_infrastructure_drivers[i].mfg_num) ) {
- /*
- * Call the device attach routines.
- */
- if (sgi_infrastructure_drivers[i].attach) {
- return(sgi_infrastructure_drivers[i].attach(connpt));
- }
- } else {
- continue;
- }
- }
- /* printk("WARNING: cdl_add_connpt: Driver not found for part_num 0x%x mfg_num 0x%xn", part_num, mfg_num); */
- return (0);
- }
- /*
- * cdl_del_connpt: Not implemented.
- */
- int
- cdl_del_connpt(cdl_p reg, int key1, int key2, devfs_handle_t connpt, int drv_flags)
- {
- return(0);
- }
- /*
- * cdl_iterate: Not Implemented.
- */
- void
- cdl_iterate(cdl_p reg,
- char *prefix,
- cdl_iter_f * func)
- {
- return;
- }
- async_attach_t
- async_attach_new(void)
- {
- return(0);
- }
- void
- async_attach_free(async_attach_t aa)
- {
- return;
- }
- async_attach_t
- async_attach_get_info(devfs_handle_t vhdl)
- {
- return(0);
- }
- void
- async_attach_add_info(devfs_handle_t vhdl, async_attach_t aa)
- {
- return;
- }
- void
- async_attach_del_info(devfs_handle_t vhdl)
- {
- return;
- }
- void async_attach_signal_start(async_attach_t aa)
- {
- return;
- }
- void async_attach_signal_done(async_attach_t aa)
- {
- return;
- }
- void async_attach_waitall(async_attach_t aa)
- {
- return;
- }