source: mainline/uspace/lib/c/generic/io/console.c@ 5d94b16c

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 5d94b16c was 5d94b16c, checked in by Jiri Svoboda <jiri@…>, 13 years ago

Factor out server side of console IPC protocol.
  • Property mode set to 100644
File size: 6.1 KB
Line 
1/*
2 * Copyright (c) 2006 Josef Cejka
3 * Copyright (c) 2006 Jakub Vana
4 * Copyright (c) 2008 Jiri Svoboda
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * - The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/** @addtogroup libc
32 * @{
33 */
34/** @file
35 */
36
37#include <libc.h>
38#include <async.h>
39#include <errno.h>
40#include <malloc.h>
41#include <vfs/vfs_sess.h>
42#include <io/console.h>
43#include <ipc/console.h>
44
45console_ctrl_t *console_init(FILE *ifile, FILE *ofile)
46{
47 console_ctrl_t *ctrl = malloc(sizeof(console_ctrl_t));
48 if (!ctrl)
49 return NULL;
50
51 ctrl->input_sess = fsession(EXCHANGE_SERIALIZE, ifile);
52 if (!ctrl->input_sess) {
53 free(ctrl);
54 return NULL;
55 }
56
57 ctrl->output_sess = fsession(EXCHANGE_SERIALIZE, ofile);
58 if (!ctrl->output_sess) {
59 free(ctrl);
60 return NULL;
61 }
62
63 ctrl->input = ifile;
64 ctrl->output = ofile;
65 ctrl->input_aid = 0;
66
67 return ctrl;
68}
69
70void console_done(console_ctrl_t *ctrl)
71{
72 free(ctrl);
73}
74
75bool console_kcon(void)
76{
77 return __SYSCALL0(SYS_DEBUG_ACTIVATE_CONSOLE);
78}
79
80void console_flush(console_ctrl_t *ctrl)
81{
82 fflush(ctrl->output);
83}
84
85void console_clear(console_ctrl_t *ctrl)
86{
87 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
88 async_req_0_0(exch, CONSOLE_CLEAR);
89 async_exchange_end(exch);
90}
91
92int console_get_size(console_ctrl_t *ctrl, sysarg_t *cols, sysarg_t *rows)
93{
94 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
95 int rc = async_req_0_2(exch, CONSOLE_GET_SIZE, cols, rows);
96 async_exchange_end(exch);
97
98 return rc;
99}
100
101void console_set_style(console_ctrl_t *ctrl, uint8_t style)
102{
103 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
104 async_req_1_0(exch, CONSOLE_SET_STYLE, style);
105 async_exchange_end(exch);
106}
107
108void console_set_color(console_ctrl_t *ctrl, uint8_t bgcolor, uint8_t fgcolor,
109 uint8_t flags)
110{
111 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
112 async_req_3_0(exch, CONSOLE_SET_COLOR, bgcolor, fgcolor, flags);
113 async_exchange_end(exch);
114}
115
116void console_set_rgb_color(console_ctrl_t *ctrl, uint32_t bgcolor,
117 uint32_t fgcolor)
118{
119 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
120 async_req_2_0(exch, CONSOLE_SET_RGB_COLOR, bgcolor, fgcolor);
121 async_exchange_end(exch);
122}
123
124void console_cursor_visibility(console_ctrl_t *ctrl, bool show)
125{
126 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
127 async_req_1_0(exch, CONSOLE_SET_CURSOR_VISIBILITY, (show != false));
128 async_exchange_end(exch);
129}
130
131int console_get_color_cap(console_ctrl_t *ctrl, sysarg_t *ccap)
132{
133 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
134 int rc = async_req_0_1(exch, CONSOLE_GET_COLOR_CAP, ccap);
135 async_exchange_end(exch);
136
137 return rc;
138}
139
140int console_get_pos(console_ctrl_t *ctrl, sysarg_t *col, sysarg_t *row)
141{
142 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
143 int rc = async_req_0_2(exch, CONSOLE_GET_POS, col, row);
144 async_exchange_end(exch);
145
146 return rc;
147}
148
149void console_set_pos(console_ctrl_t *ctrl, sysarg_t col, sysarg_t row)
150{
151 async_exch_t *exch = async_exchange_begin(ctrl->output_sess);
152 async_req_2_0(exch, CONSOLE_SET_POS, col, row);
153 async_exchange_end(exch);
154}
155
156bool console_get_kbd_event(console_ctrl_t *ctrl, kbd_event_t *event)
157{
158 if (ctrl->input_aid == 0) {
159 sysarg_t type;
160 sysarg_t key;
161 sysarg_t mods;
162 sysarg_t c;
163
164 async_exch_t *exch = async_exchange_begin(ctrl->input_sess);
165 int rc = async_req_0_4(exch, CONSOLE_GET_EVENT, &type, &key, &mods, &c);
166 async_exchange_end(exch);
167
168 if (rc != EOK) {
169 errno = rc;
170 return false;
171 }
172
173 event->type = type;
174 event->key = key;
175 event->mods = mods;
176 event->c = c;
177 } else {
178 sysarg_t retval;
179 async_wait_for(ctrl->input_aid, &retval);
180
181 ctrl->input_aid = 0;
182
183 if (retval != EOK) {
184 errno = (int) retval;
185 return false;
186 }
187
188 event->type = IPC_GET_ARG1(ctrl->input_call);
189 event->key = IPC_GET_ARG2(ctrl->input_call);
190 event->mods = IPC_GET_ARG3(ctrl->input_call);
191 event->c = IPC_GET_ARG4(ctrl->input_call);
192 }
193
194 return true;
195}
196
197bool console_get_kbd_event_timeout(console_ctrl_t *ctrl, kbd_event_t *event,
198 suseconds_t *timeout)
199{
200 struct timeval t0;
201 gettimeofday(&t0, NULL);
202
203 if (ctrl->input_aid == 0) {
204 async_exch_t *exch = async_exchange_begin(ctrl->input_sess);
205 ctrl->input_aid = async_send_0(exch, CONSOLE_GET_EVENT,
206 &ctrl->input_call);
207 async_exchange_end(exch);
208 }
209
210 sysarg_t retval;
211 int rc = async_wait_timeout(ctrl->input_aid, &retval, *timeout);
212 if (rc != EOK) {
213 *timeout = 0;
214 errno = rc;
215 return false;
216 }
217
218 ctrl->input_aid = 0;
219
220 if (retval != EOK) {
221 errno = (int) retval;
222 return false;
223 }
224
225 event->type = IPC_GET_ARG1(ctrl->input_call);
226 event->key = IPC_GET_ARG2(ctrl->input_call);
227 event->mods = IPC_GET_ARG3(ctrl->input_call);
228 event->c = IPC_GET_ARG4(ctrl->input_call);
229
230 /* Update timeout */
231 struct timeval t1;
232 gettimeofday(&t1, NULL);
233 *timeout -= tv_sub(&t1, &t0);
234
235 return true;
236}
237
238/** @}
239 */
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