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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright 2019 Joyent, Inc.
*/
/*
* See the big theory statement in uts/common/os/ddi_hp_impl.c for more
* information about the structures and functions defined here.
*/
#ifndef _SYS_DDI_HP_IMPL_H
#define _SYS_DDI_HP_IMPL_H
/*
* Sun DDI hotplug implementation specific definitions
*/
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _KERNEL
/* Flags for sync request and async hotplug request */
#define DDI_HP_REQ_SYNC 0x0001
#define DDI_HP_REQ_ASYNC 0x0002
/* Check if a handle represents a port or a connector */
#define DDI_HP_IS_VIRTUAL_PORT(hdlp) \
(hdlp->cn_info.cn_type == DDI_HP_CN_TYPE_VIRTUAL_PORT)
/*
* ddi_hp_cn_handle_t
*
* DDI handle for a registered Hotplug Connection (CN)
*/
typedef struct ddi_hp_cn_handle {
dev_info_t *cn_dip; /* The dip that the handle is linked */
ddi_hp_cn_info_t cn_info; /* Connection info */
struct ddi_hp_cn_handle *next; /* Next Connector/Port. */
} ddi_hp_cn_handle_t;
typedef struct ddi_hp_cn_async_event_entry {
dev_info_t *dip;
char *cn_name;
ddi_hp_cn_state_t target_state;
} ddi_hp_cn_async_event_entry_t;
/*
* ddi_hp_op_t
*
* Typedef for Hotplug OPS commands used with bus_hp_op()
*/
typedef enum {
DDI_HPOP_CN_GET_STATE = 1, /* Get Connection state */
DDI_HPOP_CN_CHANGE_STATE, /* Change Connection state */
DDI_HPOP_CN_PROBE, /* Probe Connection */
DDI_HPOP_CN_UNPROBE, /* Unprobe Connection */
DDI_HPOP_CN_GET_PROPERTY, /* Get bus specific property */
DDI_HPOP_CN_SET_PROPERTY, /* Set bus specific property */
DDI_HPOP_CN_CREATE_PORT, /* Create a port for virtual hotplug */
DDI_HPOP_CN_REMOVE_PORT /* Remove an empty port */
} ddi_hp_op_t;
#define DDIHP_CN_OPS(hdlp, op, arg, result, ret) \
if (DDI_HP_IS_VIRTUAL_PORT(hdlp)) \
ret = ddihp_port_ops(hdlp, op, arg, result); \
else \
ret = ddihp_connector_ops(hdlp, op, arg, result);
#define NEXUS_HAS_HP_OP(dip) \
((DEVI(dip)->devi_ops->devo_bus_ops) && \
(DEVI(dip)->devi_ops->devo_bus_ops->busops_rev >= BUSO_REV_10) && \
(DEVI(dip)->devi_ops->devo_bus_ops->bus_hp_op))
/*
* ddi_hp_cn_sysevent_t
*
* The following correspond to sysevent defined subclasses
*/
typedef enum {
DDI_HP_CN_STATE_CHANGE,
DDI_HP_CN_REQ
} ddi_hp_cn_sysevent_t;
/*
* Misc
*/
/* Append a node to list */
#define DDIHP_LIST_APPEND(type, head, node) \
if (node) { \
type *curr, *prev = NULL; \
(node)->next = NULL; \
for (curr = (head); curr; prev = curr, curr = curr->next); \
if (prev == NULL) \
(head) = (node); \
else \
prev->next = (node); \
}
/* Remove a node from a list */
#define DDIHP_LIST_REMOVE(type, head, node) \
if (node) { \
type *curr, *prev = NULL; \
for (curr = (head); curr; prev = curr, curr = curr->next) { \
if (curr == (node)) \
break; \
} \
if (curr) { \
if (prev == NULL) \
(head) = (head)->next; \
else \
prev->next = curr->next; \
} \
}
int ddihp_modctl(int hp_op, char *path, char *cn_name, uintptr_t arg,
uintptr_t rval);
ddi_hp_cn_handle_t *ddihp_cn_name_to_handle(dev_info_t *dip, char *cn_name);
int ddihp_cn_getstate(ddi_hp_cn_handle_t *hdlp);
int ddihp_port_ops(ddi_hp_cn_handle_t *hdlp, ddi_hp_op_t op,
void *arg, void *result);
int ddihp_connector_ops(ddi_hp_cn_handle_t *hdlp,
ddi_hp_op_t op, void *arg, void *result);
void ddihp_cn_gen_sysevent(ddi_hp_cn_handle_t *hdlp,
ddi_hp_cn_sysevent_t event_sub_class, int hint, int kmflag);
int ddihp_cn_unregister(ddi_hp_cn_handle_t *hdlp);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DDI_HP_IMPL_H */
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