1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26
27 #include <sys/types.h>
28 #include <sys/byteorder.h>
29 #include <sys/systm.h>
30 #include <sys/ddi.h>
31 #include <sys/sunddi.h>
32
33 int pcs_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **);
34 int pcs_attach(dev_info_t *, ddi_attach_cmd_t);
35 int pcs_detach(dev_info_t *, ddi_detach_cmd_t);
36 dev_info_t *pcs_dip;
37
38 static struct dev_ops pcs_devops = {
39 DEVO_REV,
40 0,
41 pcs_getinfo,
42 nulldev,
43 nulldev,
44 pcs_attach,
45 pcs_detach,
46 nulldev,
47 NULL,
48 NULL,
49 NULL,
50 ddi_quiesce_not_needed, /* quiesce */
51 };
52 /*
53 * This is the loadable module wrapper.
54 */
55 #include <sys/modctl.h>
56
57 extern struct mod_ops mod_driverops;
58
59 static struct modldrv modldrv = {
60 &mod_driverops, /* Type of module. This one is a driver */
61 "PCMCIA Socket Driver", /* Name of the module. */
62 &pcs_devops, /* driver ops */
63 };
64
65 static struct modlinkage modlinkage = {
66 MODREV_1, (void *)&modldrv, NULL
67 };
68
69 struct pcs_inst {
70 dev_info_t *dip;
71 } *pcs_instances;
72
73 int
_init()74 _init()
75 {
76 int ret;
77 if ((ret = ddi_soft_state_init((void **)&pcs_instances,
78 sizeof (struct pcs_inst), 1)) != 0)
79 return (ret);
80 if ((ret = mod_install(&modlinkage)) != 0) {
81 ddi_soft_state_fini((void **)&pcs_instances);
82 }
83 return (ret);
84 }
85
86 int
_fini()87 _fini()
88 {
89 int ret;
90 ret = mod_remove(&modlinkage);
91 if (ret == 0) {
92 ddi_soft_state_fini((void **)&pcs_instances);
93 }
94 return (ret);
95 }
96
97 int
_info(struct modinfo * modinfop)98 _info(struct modinfo *modinfop)
99 {
100 return (mod_info(&modlinkage, modinfop));
101 }
102
103 int
pcs_getinfo(dev_info_t * dip,ddi_info_cmd_t cmd,void * arg,void ** result)104 pcs_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
105 {
106 int error = DDI_SUCCESS;
107 int inum;
108 struct pcs_inst *inst;
109 #ifdef lint
110 dip = dip;
111 #endif
112
113 switch (cmd) {
114 case DDI_INFO_DEVT2DEVINFO:
115 inum = getminor((dev_t)arg);
116 inst = (struct pcs_inst *)ddi_get_soft_state(pcs_instances,
117 inum);
118 if (inst == NULL)
119 error = DDI_FAILURE;
120 else
121 *result = inst->dip;
122 break;
123 case DDI_INFO_DEVT2INSTANCE:
124 inum = getminor((dev_t)arg);
125 inst = (struct pcs_inst *)ddi_get_soft_state(pcs_instances,
126 inum);
127 if (inst == NULL)
128 error = DDI_FAILURE;
129 else
130 *result = (void *)(uintptr_t)inum;
131 break;
132 default:
133 error = DDI_FAILURE;
134 }
135 return (error);
136 }
137
138 int
pcs_attach(dev_info_t * dip,ddi_attach_cmd_t cmd)139 pcs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
140 {
141 int ret = DDI_SUCCESS;
142 int inum;
143 struct pcs_inst *inst;
144
145 switch (cmd) {
146 case DDI_RESUME:
147 return (DDI_SUCCESS);
148 case DDI_ATTACH:
149 break;
150 default:
151 return (DDI_FAILURE);
152 }
153
154 inum = ddi_get_instance(dip);
155
156 if (ddi_soft_state_zalloc(pcs_instances, inum) == DDI_SUCCESS) {
157 inst = (struct pcs_inst *)ddi_get_soft_state(pcs_instances,
158 inum);
159 if (inst == NULL)
160 ret = DDI_FAILURE;
161 else
162 inst->dip = dip;
163 }
164
165 return (ret);
166 }
167
168 int
pcs_detach(dev_info_t * dip,ddi_detach_cmd_t cmd)169 pcs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
170 {
171 switch (cmd) {
172 case DDI_DETACH:
173 ddi_soft_state_free(pcs_instances, ddi_get_instance(dip));
174 return (DDI_SUCCESS);
175
176 case DDI_SUSPEND:
177 case DDI_PM_SUSPEND:
178 return (DDI_SUCCESS);
179 default:
180 break;
181 }
182 return (DDI_FAILURE);
183 }
184