OpenSolaris Launch

1 files changed, 461 insertions, 0 deletions

diff --git a/usr/src/uts/common/sys/devops.h b/usr/src/uts/common/sys/devops.h
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+++ b/usr/src/uts/common/sys/devops.h
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+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_SYS_DEVOPS_H
+#define	_SYS_DEVOPS_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 */
+
+#include <sys/types.h>
+#include <sys/cred.h>
+#include <sys/uio.h>
+#include <sys/buf.h>
+#include <sys/poll.h>
+#include <vm/as.h>
+
+#include <sys/dditypes.h>
+#include <sys/ddidmareq.h>
+#include <sys/ddimapreq.h>
+#include <sys/ddipropdefs.h>
+#include <sys/ddidevmap.h>
+#include <sys/ddifm.h>
+#include <sys/nexusdefs.h>
+#include <sys/ddi_intr.h>
+#include <sys/aio_req.h>
+#include <vm/page.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#ifdef	_KERNEL
+
+/*
+ * cb_ops:	Leaf device drivers or bus nexus drivers supporting
+ *		direct user process access (open/close/etc).
+ *
+ * This is an OR of cdevsw and bdevsw fields for drivers that
+ * support both character and block entry points.
+ *
+ * For streams stuff, see also sys/stream.h.
+ *
+ * The following DDI/DKI or DKI only or DDI only functions are
+ * provided in the character/block driver operations structure.
+ *
+ *	block/char	Function	description
+ *	b/c		XXopen		DDI/DKI
+ *	b/c		XXclose		DDI/DKI
+ *	b		XXstrategy	DDI/DKI
+ *	b  		XXprint		DDI/DKI
+ *	b  		XXdump		DDI(Sun)
+ *	  c		XXread		DDI/DKI
+ *	  c		XXwrite		DDI/DKI
+ *	  c		XXioctl		DDI/DKI
+ *	  c		XXdevmap	DDI(Sun)
+ *	  c		XXmmap		DKI
+ *	  c		XXsegmap	DKI
+ *	  c		XXchpoll	DDI/DKI
+ *	  c		XXprop_op	DDI(Sun)
+ */
+
+struct cb_ops  {
+	int	(*cb_open)(dev_t *devp, int flag, int otyp, cred_t *credp);
+	int	(*cb_close)(dev_t dev, int flag, int otyp, cred_t *credp);
+	int	(*cb_strategy)(struct buf *bp);
+	int	(*cb_print)(dev_t dev, char *str);
+	int	(*cb_dump)(dev_t dev, caddr_t addr, daddr_t blkno, int nblk);
+	int	(*cb_read)(dev_t dev, struct uio *uiop, cred_t *credp);
+	int	(*cb_write)(dev_t dev, struct uio *uiop, cred_t *credp);
+	int	(*cb_ioctl)(dev_t dev, int cmd, intptr_t arg, int mode,
+		    cred_t *credp, int *rvalp);
+	int	(*cb_devmap)(dev_t dev, devmap_cookie_t dhp, offset_t off,
+			size_t len, size_t *maplen, uint_t model);
+	int	(*cb_mmap)(dev_t dev, off_t off, int prot);
+	int	(*cb_segmap)(dev_t dev, off_t off, struct as *asp,
+		    caddr_t *addrp, off_t len, unsigned int prot,
+		    unsigned int maxprot, unsigned int flags, cred_t *credp);
+	int	(*cb_chpoll)(dev_t dev, short events, int anyyet,
+		    short *reventsp, struct pollhead **phpp);
+	int	(*cb_prop_op)(dev_t dev, dev_info_t *dip,
+		    ddi_prop_op_t prop_op, int mod_flags,
+		    char *name, caddr_t valuep, int *length);
+
+	struct streamtab *cb_str;	/* streams information */
+
+	/*
+	 * The cb_flag fields are here to tell the system a
+	 * bit about the device. The bit definitions are
+	 * in <sys/conf.h>.
+	 */
+	int	cb_flag;		/* driver compatibility flag */
+	int	cb_rev;			/* cb_ops version number */
+	int	(*cb_aread)(dev_t dev, struct aio_req *aio, cred_t *credp);
+	int	(*cb_awrite)(dev_t dev, struct aio_req *aio, cred_t *credp);
+};
+
+/*
+ * bus_ops:	bus nexus drivers only.
+ *
+ * These functions are used to implement the Sun DDI functions
+ * described elsewhere.
+ *
+ * Only nexus drivers support these entry points.
+ *
+ * The following bus nexus functions are provided in the bus nexus
+ * driver operations structure.  Note that all functions take both
+ * their dip and the requesters dip except for the child functions since
+ * they will be called from outside the ddi.
+ *
+ *	bus_map			-  Map/unmap/control IU -> device mappings.
+ *	bus_get_intrspec	-  get interrupt specification by number
+ *	bus_add_intrspec	-  add interrupt specification, return cookie
+ *	bus_remove_intrspec	-  remove interrupt specification
+ *	bus_map_fault		-  bus fault handler
+ *	bus_dma_map		-  setup dma mapping
+ *	bus_dma_mapctl		-  control (and free) dma mapping
+ *	bus_ctl			-  generic control operations
+ *	bus_prop_op		_  request for property
+ */
+
+#define	BUSO_REV_3	3
+#define	BUSO_REV_4	4
+#define	BUSO_REV_5	5
+#define	BUSO_REV_6	6
+#define	BUSO_REV_7	7
+#define	BUSO_REV_8	8
+#define	BUSO_REV_9	9
+#define	BUSO_REV	BUSO_REV_9
+
+
+struct bus_ops  {
+	int		busops_rev;	/* rev of this structure */
+	int		(*bus_map)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_map_req_t *mp, off_t offset, off_t len,
+			    caddr_t *vaddrp);
+
+	/*
+	 * NOTE: the following 3 busops entrypoints are obsoleted with
+	 * version 9 or greater. Use bus_intr_op interface in place of
+	 * these obsolete interfaces.
+	 */
+	ddi_intrspec_t	(*bus_get_intrspec)(dev_info_t *dip, dev_info_t *rdip,
+			    uint_t inumber);
+	int		(*bus_add_intrspec)(dev_info_t *dip,
+			    dev_info_t *rdip, ddi_intrspec_t intrspec,
+			    ddi_iblock_cookie_t *ibcp,
+			    ddi_idevice_cookie_t *idcp,
+			    uint_t (*int_handler)(caddr_t intr_handler_arg),
+			    caddr_t intr_handler_arg, int kind);
+	void		(*bus_remove_intrspec)(dev_info_t *dip,
+			    dev_info_t *rdip, ddi_intrspec_t intrspec,
+			    ddi_iblock_cookie_t iblock_cookie);
+
+	int		(*bus_map_fault)(dev_info_t *dip, dev_info_t *rdip,
+			    struct hat *hat, struct seg *seg, caddr_t addr,
+			    struct devpage *dp, pfn_t pfn, uint_t prot,
+			    uint_t lock);
+	int		(*bus_dma_map)(dev_info_t *dip, dev_info_t *rdip,
+			    struct ddi_dma_req *dmareq,
+			    ddi_dma_handle_t *handlep);
+	int		(*bus_dma_allochdl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_dma_attr_t *attr, int (*waitfp)(caddr_t),
+			    caddr_t arg, ddi_dma_handle_t *handlep);
+	int		(*bus_dma_freehdl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_dma_handle_t handle);
+	int		(*bus_dma_bindhdl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_dma_handle_t handle, struct ddi_dma_req *dmareq,
+			    ddi_dma_cookie_t *, uint_t *);
+	int		(*bus_dma_unbindhdl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_dma_handle_t handle);
+	int		(*bus_dma_flush)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_dma_handle_t handle, off_t off,
+			    size_t len, uint_t cache_flags);
+	int		(*bus_dma_win)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_dma_handle_t handle, uint_t win, off_t *offp,
+			    size_t *lenp, ddi_dma_cookie_t *cookiep,
+			    uint_t *ccountp);
+	int		(*bus_dma_ctl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_dma_handle_t handle,
+			    enum ddi_dma_ctlops request, off_t *offp,
+			    size_t *lenp, caddr_t *objp, uint_t flags);
+	int		(*bus_ctl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_ctl_enum_t ctlop, void *arg, void *result);
+	int		(*bus_prop_op)(dev_t dev, dev_info_t *dip,
+			    dev_info_t *child_dip, ddi_prop_op_t prop_op,
+			    int mod_flags, char *name, caddr_t valuep,
+			    int *length);
+	/*
+	 * NOTE: the following 4 busops entrypoints are only available
+	 * with version 3 or greater.  Due to interface modifications, these
+	 * entrypoints can only be used with version 6 or greater.
+	 */
+
+	int		(*bus_get_eventcookie)(dev_info_t *dip,
+			    dev_info_t *rdip, char *eventname,
+			    ddi_eventcookie_t *cookiep);
+	int		(*bus_add_eventcall)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_eventcookie_t eventid,
+			    void (*event_hdlr)(dev_info_t *dip,
+			    ddi_eventcookie_t event, void *arg,
+			    void *bus_impldata), void *arg,
+			    ddi_callback_id_t *cb_id);
+	int		(*bus_remove_eventcall)(dev_info_t *devi,
+			    ddi_callback_id_t cb_id);
+	int		(*bus_post_event)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_eventcookie_t event, void *impl_data);
+
+	/*
+	 * NOTE: the following bus_intr_ctl entrypoint is obsoleted with
+	 * version 9 or greater. Use bus_intr_op interface in place of
+	 * this obsolete interface.
+	 */
+	int		(*bus_intr_ctl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_intr_ctlop_t ctlop, void * arg, void * result);
+	/*
+	 * NOTE: the following busop entrypoints are available with version
+	 * 5 or greater.
+	 */
+	int		(*bus_config)(dev_info_t *parent, uint_t flags,
+			    ddi_bus_config_op_t op, void *arg,
+			    dev_info_t **childp);
+	int		(*bus_unconfig)(dev_info_t *parent, uint_t flags,
+			    ddi_bus_config_op_t op, void *arg);
+
+	/*
+	 * NOTE: the following busop entrypoints are available with version
+	 * 6 or greater.
+	 */
+	int		(*bus_fm_init)(dev_info_t *dip, dev_info_t *tdip,
+			    int cap, ddi_iblock_cookie_t *ibc);
+	void		(*bus_fm_fini)(dev_info_t *dip, dev_info_t *tdip);
+	void		(*bus_fm_access_enter)(dev_info_t *dip,
+			    ddi_acc_handle_t handle);
+	void		(*bus_fm_access_exit)(dev_info_t *dip,
+			    ddi_acc_handle_t handle);
+
+	/*
+	 * NOTE: the following busop entrypoint is available with version
+	 * 7 or greater.
+	 */
+	int		(*bus_power)(dev_info_t *dip, void *impl_arg,
+			    pm_bus_power_op_t op, void *arg, void *result);
+
+	/*
+	 * NOTE: the following busop entrypoint is available with version
+	 * 9 or greater.
+	 */
+	int		(*bus_intr_op)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_intr_op_t op, ddi_intr_handle_impl_t *hdlp,
+			    void *result);
+};
+
+/*
+ * REV 1 bus ops structure
+ */
+
+struct bus_ops_rev1 {
+	int		(*bus_map)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_map_req_t *mp, off_t offset, off_t len,
+			    caddr_t *vaddrp);
+	ddi_intrspec_t	(*bus_get_intrspec)(dev_info_t *dip, dev_info_t *rdip,
+			    uint_t inumber);
+	int		(*bus_add_intrspec)(dev_info_t *dip,
+			    dev_info_t *rdip, ddi_intrspec_t intrspec,
+			    ddi_iblock_cookie_t *ibcp,
+			    ddi_idevice_cookie_t *idcp,
+			    uint_t (*int_handler)(caddr_t intr_handler_arg),
+			    caddr_t intr_handler_arg, int kind);
+	void		(*bus_remove_intrspec)(dev_info_t *dip,
+			    dev_info_t *rdip, ddi_intrspec_t intrspec,
+			    ddi_iblock_cookie_t iblock_cookie);
+	int		(*bus_map_fault)(dev_info_t *dip, dev_info_t *rdip,
+			    struct hat *hat, struct seg *seg, caddr_t addr,
+			    struct devpage *dp, pfn_t pfn, uint_t prot,
+			    uint_t lock);
+	int		(*bus_dma_map)(dev_info_t *dip, dev_info_t *rdip,
+			    struct ddi_dma_req *dmareq,
+			    ddi_dma_handle_t *handlep);
+	int		(*bus_dma_ctl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_dma_handle_t handle,
+			    enum ddi_dma_ctlops request, off_t *offp,
+			    uint_t *lenp, caddr_t *objp, uint_t flags);
+	int		(*bus_ctl)(dev_info_t *dip, dev_info_t *rdip,
+			    ddi_ctl_enum_t ctlop, void *arg, void *result);
+	int		(*bus_prop_op)(dev_t dev, dev_info_t *dip,
+			    dev_info_t *child_dip, ddi_prop_op_t prop_op,
+			    int mod_flags, char *name, caddr_t valuep,
+			    int *length);
+};
+
+/*
+ * dev_ops:	Contains driver common fields and pointers
+ *		to the bus_ops and/or cb_ops parts.
+ *
+ * Drivers should set devo_rev to DEVO_REV at compile time.
+ * All drivers should support these entry points.
+ *
+ * the following device functions are provided in the device operations
+ * structure.
+ *
+ *	devo_getinfo		-  Device handle conversion
+ *	devo_identify		-  Obsolete, set to nulldev
+ *	devo_probe		-  Probe for device's existence
+ *	devo_attach		-  Attach driver to dev_info
+ *	devo_detach		-  Detach/prepare driver to unload
+ *	devo_reset		-  Reset device
+ */
+
+#define		DEVO_REV		3
+#define		CB_REV			1
+
+/*
+ * Return from driver's devo_probe function:
+ */
+
+#define	DDI_PROBE_FAILURE	ENXIO	/* matches nodev return */
+#define	DDI_PROBE_DONTCARE	0	/* matches nulldev return */
+#define	DDI_PROBE_PARTIAL	1
+#define	DDI_PROBE_SUCCESS	2
+
+/*
+ * Typedefs for the info, attach, detach and reset routines.
+ * These are mostly placeholders for now.
+ *
+ * NOTE: DDI_INFO_DEVT2DEVINFO is deprecated
+ */
+typedef enum {
+	DDI_INFO_DEVT2DEVINFO = 0,	/* Convert a dev_t to a dev_info_t */
+	DDI_INFO_DEVT2INSTANCE = 1	/* Convert a dev_t to an instance # */
+} ddi_info_cmd_t;
+
+typedef enum {
+	DDI_ATTACH = 0,
+	DDI_RESUME = 1,
+	DDI_PM_RESUME = 2
+} ddi_attach_cmd_t;
+
+typedef enum {
+	DDI_DETACH = 0,
+	DDI_SUSPEND = 1,
+	DDI_PM_SUSPEND = 2,
+	DDI_HOTPLUG_DETACH = 3		/* detach, don't try to auto-unconfig */
+} ddi_detach_cmd_t;
+
+typedef enum {
+	DDI_RESET_FORCE = 0
+} ddi_reset_cmd_t;
+
+
+struct dev_ops  {
+	int		devo_rev;	/* Driver build version		*/
+	int		devo_refcnt;	/* device reference count	*/
+
+	int		(*devo_getinfo)(dev_info_t *dip,
+			    ddi_info_cmd_t infocmd, void *arg, void **result);
+	int		(*devo_identify)(dev_info_t *dip);
+	int		(*devo_probe)(dev_info_t *dip);
+	int		(*devo_attach)(dev_info_t *dip, ddi_attach_cmd_t cmd);
+	int		(*devo_detach)(dev_info_t *dip, ddi_detach_cmd_t cmd);
+	int		(*devo_reset)(dev_info_t *dip, ddi_reset_cmd_t cmd);
+
+	struct cb_ops	*devo_cb_ops;	/* cb_ops pointer for leaf drivers   */
+	struct bus_ops	*devo_bus_ops;	/* bus_ops pointer for nexus drivers */
+	int		(*devo_power)(dev_info_t *dip, int component,
+			    int level);
+};
+
+/*
+ * Create a dev_ops suitable for a streams driver:
+ *
+ * XXX: Note:  Since this is a macro, it is NOT supported as
+ * XXX: part of the Sun DDI.  It is not a documented Sun DDI interface.
+ *
+ * STR_OPS(name, identify, probe, attach, detach, reset,
+ *	info, flag, stream_tab);
+ *
+ *	XXname is the name of the dev_ops structure.
+ *	XXidentify must be set to nulldev
+ *	XXprobe is the name of the probe routine, or nulldev
+ *	XXattach is the name of the attach routine
+ *	XXdetach is the name of the detach routine, or nodev
+ *	XXreset is the name of the reset routine, or nodev
+ *	XXinfo is the name of the info routine
+ *	XXflag is driver flag (cb_flag) in cb_ops,
+ *	XXstream_tab is the obvious.
+ *	cb_##XXname is the name of the internally defined cb_ops struct.
+ *
+ * uses cb_XXname as name of static cb_ops structure.
+ */
+
+/*
+ * This file is included by genassym.c now and I couldn't get it to take the
+ * next line if it was broken into two lines joined by a '\'.  So, don't try
+ * to reformat it to satisfy Cstyle because genassym.c won't compile.
+ */
+/* CSTYLED */
+#define	DDI_DEFINE_STREAM_OPS(XXname, XXidentify, XXprobe, XXattach, XXdetach, XXreset, XXgetinfo, XXflag, XXstream_tab) \
+static struct cb_ops cb_##XXname = {					\
+	nulldev,		/* cb_open */				\
+	nulldev,		/* cb_close */				\
+	nodev,			/* cb_strategy */			\
+	nodev,			/* cb_print */				\
+	nodev,			/* cb_dump */				\
+	nodev,			/* cb_read */				\
+	nodev,			/* cb_write */				\
+	nodev,			/* cb_ioctl */				\
+	nodev,			/* cb_devmap */				\
+	nodev,			/* cb_mmap */				\
+	nodev,			/* cb_segmap */				\
+	nochpoll,		/* cb_chpoll */				\
+	ddi_prop_op,		/* cb_prop_op */			\
+	(XXstream_tab),		/* cb_stream */				\
+	(int)(XXflag),		/* cb_flag */				\
+	CB_REV,			/* cb_rev */				\
+	nodev,			/* cb_aread */				\
+	nodev,			/* cb_awrite */				\
+};									\
+									\
+static struct dev_ops XXname = {					\
+	DEVO_REV,		/* devo_rev */				\
+	0,			/* devo_refcnt */			\
+	(XXgetinfo),		/* devo_getinfo */			\
+	(XXidentify),		/* devo_identify */			\
+	(XXprobe),		/* devo_probe */			\
+	(XXattach),		/* devo_attach */			\
+	(XXdetach),		/* devo_detach */			\
+	(XXreset),		/* devo_reset */			\
+	&(cb_##XXname),		/* devo_cb_ops */			\
+	(struct bus_ops *)NULL,	/* devo_bus_ops */			\
+	NULL			/* devo_power */			\
+}
+
+#endif	/* _KERNEL */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_DEVOPS_H */