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
40 #include <stand.h>
41 #include <bootstrap.h>
42
43 extern void get_pos(int *x, int *y);
44 extern void curs_move(int *_x, int *_y, int x, int y);
45 #if defined(EFI)
46 extern void efi_cons_efiputchar(int c);
47 #else
48 extern void vidc_biosputchar(int c);
49 #endif
50
51 static void spinc_probe(struct console *cp);
52 static int spinc_init(struct console *cp, int arg);
53 static void spinc_putchar(struct console *cp, int c);
54 static int spinc_getchar(struct console *cp);
55 static int spinc_ischar(struct console *cp);
56
57 struct console spinconsole = {
58 .c_name = "spin",
59 .c_desc = "spin port",
60 .c_flags = 0,
61 .c_probe = spinc_probe,
62 .c_init = spinc_init,
63 .c_out = spinc_putchar,
64 .c_in = spinc_getchar,
65 .c_ready = spinc_ischar,
66 .c_private = NULL
67 };
68
69 static void
70 spinc_probe(struct console *cp)
71 {
72 cp->c_flags |= (C_PRESENTIN | C_PRESENTOUT);
73 }
74
75 static int
76 spinc_init(struct console *cp __attribute((unused)),
77 int arg __attribute((unused)))
78 {
79 return(0);
80 }
81
82 static void
83 spinc_putchar(struct console *cp __attribute((unused)),
84 int c __attribute((unused)))
85 {
86 #ifdef TERM_EMU
87 static int curx, cury;
88 #endif
89 static unsigned tw_chars = 0x5C2D2F7C; /* "\-/|" */
90 static time_t lasttime;
91 time_t now;
92
93 now = time(NULL);
94 if (now < (lasttime + 1))
95 return;
96 lasttime = now;
97 #ifdef TERM_EMU
98 get_pos(&curx, &cury);
99 if (curx > 0)
100 curs_move(&curx, &cury, curx - 1, cury);
101 #endif
102 #if defined(EFI)
103 efi_cons_efiputchar((char)tw_chars);
104 #else
105 vidc_biosputchar((char)tw_chars);
106 #endif
107 tw_chars = (tw_chars >> 8) | ((tw_chars & (unsigned long)0xFF) << 24);
108 }
109
110 static int
111 spinc_getchar(struct console *cp __attribute((unused)))
112 {
113 return(-1);
114 }
115
116 static int
117 spinc_ischar(struct console *cp __attribute((unused)))
118 {
119 return(0);
120 }