1 /*-
2 * spinconsole.c
3 *
4 * Author: Maksym Sobolyev <sobomax@sippysoft.com>
5 * Copyright (c) 2009 Sippy Software, Inc.
6 * All rights reserved.
7 *
8 * Subject to the following obligations and disclaimer of warranty, use and
9 * redistribution of this software, in source or object code forms, with or
10 * without modifications are expressly permitted by Whistle Communications;
11 * provided, however, that:
12 * 1. Any and all reproductions of the source or object code must include the
13 * copyright notice above and the following disclaimer of warranties; and
14 * 2. No rights are granted, in any manner or form, to use Whistle
15 * Communications, Inc. trademarks, including the mark "WHISTLE
16 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
17 * such appears in the above copyright notice or in the software.
18 *
19 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
20 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
21 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
22 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
24 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
25 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
26 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
27 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
28 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
29 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
30 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
35 * OF SUCH DAMAGE.
36 */
37
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
40
41 #include <stand.h>
42 #include <bootstrap.h>
43
44 extern void get_pos(int *x, int *y);
45 extern void curs_move(int *_x, int *_y, int x, int y);
46 extern void vidc_biosputchar(int c);
47
48 static void spinc_probe(struct console *cp);
49 static int spinc_init(int arg);
50 static void spinc_putchar(int c);
51 static int spinc_getchar(void);
52 static int spinc_ischar(void);
53
54 struct console spinconsole = {
55 "spinconsole",
56 "spin port",
57 0,
58 spinc_probe,
59 spinc_init,
60 spinc_putchar,
61 spinc_getchar,
62 spinc_ischar
63 };
64
65 static void
spinc_probe(struct console * cp)66 spinc_probe(struct console *cp)
67 {
68 cp->c_flags |= (C_PRESENTIN | C_PRESENTOUT);
69 }
70
71 static int
spinc_init(int arg)72 spinc_init(int arg)
73 {
74 return(0);
75 }
76
77 static void
spinc_putchar(int c)78 spinc_putchar(int c)
79 {
80 static int curx, cury;
81 static unsigned tw_chars = 0x5C2D2F7C; /* "\-/|" */
82 static time_t lasttime;
83 time_t now;
84
85 now = time(NULL);
86 if (now < (lasttime + 1))
87 return;
88 lasttime = now;
89 #ifdef TERM_EMU
90 get_pos(&curx, &cury);
91 if (curx > 0)
92 curs_move(&curx, &cury, curx - 1, cury);
93 #endif
94 vidc_biosputchar((char)tw_chars);
95 tw_chars = (tw_chars >> 8) | ((tw_chars & (unsigned long)0xFF) << 24);
96 }
97
98 static int
spinc_getchar(void)99 spinc_getchar(void)
100 {
101 return(-1);
102 }
103
104 static int
spinc_ischar(void)105 spinc_ischar(void)
106 {
107 return(0);
108 }
109