source: mainline/uspace/lib/c/generic/io/output.c@ d5c1051

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since d5c1051 was 25a179e, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 8 years ago

IPC return values are always errno constants. Adjust types to reflect that.

In principle, IPC server is not allowed to return non-errno values via
the "main" return value, because kernel interprets it (e.g. EHANGUP).
It's still possible to return arbitrary additional return values alongside EOK,
which are not interpreted in normal communication.

  • Property mode set to 100644
File size: 3.9 KB
Line 
1/*
2 * Copyright (c) 2011 Martin Decky
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 libc
30 * @{
31 */
32/** @file
33 */
34
35#include <async.h>
36#include <errno.h>
37#include <as.h>
38#include <ipc/output.h>
39#include <io/concaps.h>
40#include <io/output.h>
41
42int output_yield(async_sess_t *sess)
43{
44 async_exch_t *exch = async_exchange_begin(sess);
45 int ret = async_req_0_0(exch, OUTPUT_YIELD);
46 async_exchange_end(exch);
47
48 return ret;
49}
50
51int output_claim(async_sess_t *sess)
52{
53 async_exch_t *exch = async_exchange_begin(sess);
54 int ret = async_req_0_0(exch, OUTPUT_CLAIM);
55 async_exchange_end(exch);
56
57 return ret;
58}
59
60int output_get_dimensions(async_sess_t *sess, sysarg_t *maxx, sysarg_t *maxy)
61{
62 async_exch_t *exch = async_exchange_begin(sess);
63 int ret = async_req_0_2(exch, OUTPUT_GET_DIMENSIONS, maxx, maxy);
64 async_exchange_end(exch);
65
66 return ret;
67}
68
69int output_get_caps(async_sess_t *sess, console_caps_t *ccaps)
70{
71 async_exch_t *exch = async_exchange_begin(sess);
72
73 sysarg_t rv;
74 int ret = async_req_0_1(exch, OUTPUT_GET_CAPS, &rv);
75
76 async_exchange_end(exch);
77
78 if (ret == EOK)
79 *ccaps = (console_caps_t) rv;
80
81 return ret;
82}
83
84frontbuf_handle_t output_frontbuf_create(async_sess_t *sess,
85 chargrid_t *frontbuf)
86{
87 async_exch_t *exch = async_exchange_begin(sess);
88
89 ipc_call_t answer;
90 aid_t req = async_send_0(exch, OUTPUT_FRONTBUF_CREATE, &answer);
91 int rc = async_share_out_start(exch, frontbuf, AS_AREA_READ
92 | AS_AREA_WRITE | AS_AREA_CACHEABLE);
93
94 async_exchange_end(exch);
95
96 int ret;
97 async_wait_for(req, &ret);
98
99 if ((rc != EOK) || (ret != EOK))
100 return 0;
101
102 return (frontbuf_handle_t) IPC_GET_ARG1(answer);
103}
104
105int output_set_style(async_sess_t *sess, console_style_t style)
106{
107 async_exch_t *exch = async_exchange_begin(sess);
108 int ret = async_req_1_0(exch, OUTPUT_SET_STYLE, style);
109 async_exchange_end(exch);
110
111 return ret;
112}
113
114int output_cursor_update(async_sess_t *sess, frontbuf_handle_t frontbuf)
115{
116 async_exch_t *exch = async_exchange_begin(sess);
117 int ret = async_req_1_0(exch, OUTPUT_CURSOR_UPDATE, frontbuf);
118 async_exchange_end(exch);
119
120 return ret;
121}
122
123int output_update(async_sess_t *sess, frontbuf_handle_t frontbuf)
124{
125 async_exch_t *exch = async_exchange_begin(sess);
126 int ret = async_req_1_0(exch, OUTPUT_UPDATE, frontbuf);
127 async_exchange_end(exch);
128
129 return ret;
130}
131
132int output_damage(async_sess_t *sess, frontbuf_handle_t frontbuf, sysarg_t col,
133 sysarg_t row, sysarg_t cols, sysarg_t rows)
134{
135 async_exch_t *exch = async_exchange_begin(sess);
136 int ret = async_req_5_0(exch, OUTPUT_DAMAGE, frontbuf, col, row,
137 cols, rows);
138 async_exchange_end(exch);
139
140 return ret;
141}
142
143/** @}
144 */
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