1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/*
* 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 (c) 1999-2000 by Sun Microsystems, Inc.
* All rights reserved.
*/
/*
* hci1394_misc.c
* Misc. HBA functions. These include getinfo, open, close, shutdown, and
* overall driver state control functions.
*/
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/modctl.h>
#include <sys/sunddi.h>
#include <sys/types.h>
#include <sys/mkdev.h>
#include <sys/1394/adapters/hci1394.h>
#include <sys/1394/adapters/hci1394_extern.h>
/* ARGSUSED */
int
hci1394_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
{
dev_t dev;
hci1394_state_t *soft_state;
minor_t instance;
int status;
switch (cmd) {
case DDI_INFO_DEVT2DEVINFO:
dev = (dev_t)arg;
instance = getminor(dev);
soft_state = ddi_get_soft_state(hci1394_statep, instance);
if (soft_state == NULL) {
return (DDI_FAILURE);
}
*result = (void *)soft_state->drvinfo.di_dip;
status = DDI_SUCCESS;
break;
case DDI_INFO_DEVT2INSTANCE:
dev = (dev_t)arg;
instance = getminor(dev);
*result = (void *)(uintptr_t)instance;
status = DDI_SUCCESS;
break;
default:
status = DDI_FAILURE;
}
return (status);
}
/* ARGSUSED */
int
hci1394_open(dev_t *devp, int flag, int otyp, cred_t *credp)
{
hci1394_state_t *soft_state;
soft_state = ddi_get_soft_state(hci1394_statep, getminor(*devp));
if (soft_state == NULL) {
return (ENXIO);
}
return (0);
}
/* ARGSUSED */
int
hci1394_close(dev_t dev, int flag, int otyp, cred_t *credp)
{
return (0);
}
/*
* hci1394_shutdown()
* Shutdown the HW. Something bad that we cannot recover from happened.
*/
void
hci1394_shutdown(dev_info_t *dip)
{
hci1394_state_t *soft_state;
/*
* In the debug version of the driver, we want to do an assert here so
* that we don't reset the hardware and can look and see what happened
* to cause the shutdown.
*/
#ifndef TEST_SHUTDOWN
ASSERT(0);
#endif
soft_state = ddi_get_soft_state(hci1394_statep, ddi_get_instance(dip));
if (soft_state == NULL) {
return;
}
/*
* Don't allow the HW to generate any more interrupts. Make sure we
* disable interrupts before setting the driver state to shutdown.
*/
hci1394_ohci_intr_master_disable(soft_state->ohci);
/* don't accept anymore commands from services layer */
(void) hci1394_state_set(&soft_state->drvinfo, HCI1394_SHUTDOWN);
/* Reset the OHCI HW */
(void) hci1394_ohci_soft_reset(soft_state->ohci);
/* Flush out async DMA Q's (cancels pendingQ timeouts too) */
hci1394_async_flush(soft_state->async);
}
/*
* hci1394_state()
* returns the current state of the driver
*/
hci1394_statevar_t
hci1394_state(hci1394_drvinfo_t *drvinfo)
{
hci1394_statevar_t hal_state;
mutex_enter(&drvinfo->di_drvstate.ds_mutex);
hal_state = drvinfo->di_drvstate.ds_state;
mutex_exit(&drvinfo->di_drvstate.ds_mutex);
return (hal_state);
}
/*
* hci1394_state_set()
* Set the current state of the driver. This routine will return failure
* if the driver state is currently set to HCI1394_SHUTDOWN. We do not
* allow a transition out of shutdown.
*/
int
hci1394_state_set(hci1394_drvinfo_t *drvinfo, hci1394_statevar_t state)
{
mutex_enter(&drvinfo->di_drvstate.ds_mutex);
/* Do not allow a transition out of shutdown */
if (drvinfo->di_drvstate.ds_state == HCI1394_SHUTDOWN) {
mutex_exit(&drvinfo->di_drvstate.ds_mutex);
return (DDI_FAILURE);
}
drvinfo->di_drvstate.ds_state = state;
mutex_exit(&drvinfo->di_drvstate.ds_mutex);
return (DDI_SUCCESS);
}
|
