1 | /*
|
---|
2 | * Copyright (c) 2018 Petr Pavlu
|
---|
3 | * All rights reserved.
|
---|
4 | *
|
---|
5 | * Redistribution and use in source and binary forms, with or without
|
---|
6 | * modification, are permitted provided that the following conditions
|
---|
7 | * are met:
|
---|
8 | *
|
---|
9 | * - Redistributions of source code must retain the above copyright
|
---|
10 | * notice, this list of conditions and the following disclaimer.
|
---|
11 | * - Redistributions in binary form must reproduce the above copyright
|
---|
12 | * notice, this list of conditions and the following disclaimer in the
|
---|
13 | * documentation and/or other materials provided with the distribution.
|
---|
14 | * - The name of the author may not be used to endorse or promote products
|
---|
15 | * derived from this software without specific prior written permission.
|
---|
16 | *
|
---|
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
---|
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
---|
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
---|
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
---|
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
---|
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
---|
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
---|
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
---|
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
---|
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
---|
27 | */
|
---|
28 |
|
---|
29 | /** @addtogroup uspace_drv_gicv2
|
---|
30 | * @{
|
---|
31 | */
|
---|
32 | /** @file GICv2 driver.
|
---|
33 | * @brief ARM Generic Interrupt Controller, Architecture version 2.0.
|
---|
34 | *
|
---|
35 | * This IRQ controller is present on the QEMU virt platform for ARM.
|
---|
36 | */
|
---|
37 |
|
---|
38 | #include <ddf/driver.h>
|
---|
39 | #include <ddf/log.h>
|
---|
40 | #include <device/hw_res_parsed.h>
|
---|
41 | #include <errno.h>
|
---|
42 | #include <stdio.h>
|
---|
43 |
|
---|
44 | #include "gicv2.h"
|
---|
45 |
|
---|
46 | #define NAME "gicv2"
|
---|
47 |
|
---|
48 | static errno_t gicv2_dev_add(ddf_dev_t *dev);
|
---|
49 | static errno_t gicv2_dev_remove(ddf_dev_t *dev);
|
---|
50 | static errno_t gicv2_dev_gone(ddf_dev_t *dev);
|
---|
51 | static errno_t gicv2_fun_online(ddf_fun_t *fun);
|
---|
52 | static errno_t gicv2_fun_offline(ddf_fun_t *fun);
|
---|
53 |
|
---|
54 | static driver_ops_t driver_ops = {
|
---|
55 | .dev_add = gicv2_dev_add,
|
---|
56 | .dev_remove = gicv2_dev_remove,
|
---|
57 | .dev_gone = gicv2_dev_gone,
|
---|
58 | .fun_online = gicv2_fun_online,
|
---|
59 | .fun_offline = gicv2_fun_offline
|
---|
60 | };
|
---|
61 |
|
---|
62 | static driver_t gicv2_driver = {
|
---|
63 | .name = NAME,
|
---|
64 | .driver_ops = &driver_ops
|
---|
65 | };
|
---|
66 |
|
---|
67 | static errno_t gicv2_get_res(ddf_dev_t *dev, gicv2_res_t *res)
|
---|
68 | {
|
---|
69 | async_sess_t *parent_sess;
|
---|
70 | hw_res_list_parsed_t hw_res;
|
---|
71 | errno_t rc;
|
---|
72 |
|
---|
73 | parent_sess = ddf_dev_parent_sess_get(dev);
|
---|
74 | if (parent_sess == NULL)
|
---|
75 | return ENOMEM;
|
---|
76 |
|
---|
77 | hw_res_list_parsed_init(&hw_res);
|
---|
78 | rc = hw_res_get_list_parsed(parent_sess, &hw_res, 0);
|
---|
79 | if (rc != EOK)
|
---|
80 | return rc;
|
---|
81 |
|
---|
82 | if (hw_res.mem_ranges.count != 2) {
|
---|
83 | rc = EINVAL;
|
---|
84 | goto error;
|
---|
85 | }
|
---|
86 |
|
---|
87 | res->distr_base = RNGABS(hw_res.mem_ranges.ranges[0]);
|
---|
88 | res->cpui_base = RNGABS(hw_res.mem_ranges.ranges[1]);
|
---|
89 |
|
---|
90 | return EOK;
|
---|
91 | error:
|
---|
92 | hw_res_list_parsed_clean(&hw_res);
|
---|
93 | return rc;
|
---|
94 | }
|
---|
95 |
|
---|
96 | static errno_t gicv2_dev_add(ddf_dev_t *dev)
|
---|
97 | {
|
---|
98 | gicv2_t *gicv2;
|
---|
99 | gicv2_res_t gicv2_res;
|
---|
100 | errno_t rc;
|
---|
101 |
|
---|
102 | ddf_msg(LVL_DEBUG, "gicv2_dev_add(%p)", dev);
|
---|
103 | gicv2 = ddf_dev_data_alloc(dev, sizeof(gicv2_t));
|
---|
104 | if (gicv2 == NULL) {
|
---|
105 | ddf_msg(LVL_ERROR, "Failed allocating soft state.");
|
---|
106 | return ENOMEM;
|
---|
107 | }
|
---|
108 |
|
---|
109 | gicv2->dev = dev;
|
---|
110 |
|
---|
111 | rc = gicv2_get_res(dev, &gicv2_res);
|
---|
112 | if (rc != EOK) {
|
---|
113 | ddf_msg(LVL_ERROR, "Failed getting hardware resource list.\n");
|
---|
114 | return EIO;
|
---|
115 | }
|
---|
116 |
|
---|
117 | return gicv2_add(gicv2, &gicv2_res);
|
---|
118 | }
|
---|
119 |
|
---|
120 | static errno_t gicv2_dev_remove(ddf_dev_t *dev)
|
---|
121 | {
|
---|
122 | gicv2_t *gicv2 = (gicv2_t *)ddf_dev_data_get(dev);
|
---|
123 |
|
---|
124 | ddf_msg(LVL_DEBUG, "gicv2_dev_remove(%p)", dev);
|
---|
125 |
|
---|
126 | return gicv2_remove(gicv2);
|
---|
127 | }
|
---|
128 |
|
---|
129 | static errno_t gicv2_dev_gone(ddf_dev_t *dev)
|
---|
130 | {
|
---|
131 | gicv2_t *gicv2 = (gicv2_t *)ddf_dev_data_get(dev);
|
---|
132 |
|
---|
133 | ddf_msg(LVL_DEBUG, "gicv2_dev_gone(%p)", dev);
|
---|
134 |
|
---|
135 | return gicv2_gone(gicv2);
|
---|
136 | }
|
---|
137 |
|
---|
138 | static errno_t gicv2_fun_online(ddf_fun_t *fun)
|
---|
139 | {
|
---|
140 | ddf_msg(LVL_DEBUG, "gicv2_fun_online()");
|
---|
141 | return ddf_fun_online(fun);
|
---|
142 | }
|
---|
143 |
|
---|
144 | static errno_t gicv2_fun_offline(ddf_fun_t *fun)
|
---|
145 | {
|
---|
146 | ddf_msg(LVL_DEBUG, "gicv2_fun_offline()");
|
---|
147 | return ddf_fun_offline(fun);
|
---|
148 | }
|
---|
149 |
|
---|
150 | int main(int argc, char *argv[])
|
---|
151 | {
|
---|
152 | printf(NAME ": GICv2 interrupt controller driver\n");
|
---|
153 | ddf_log_init(NAME);
|
---|
154 | return ddf_driver_main(&gicv2_driver);
|
---|
155 | }
|
---|
156 |
|
---|
157 | /** @}
|
---|
158 | */
|
---|