usr/src/boot/sys/boot/i386/libi386/spinconsole.c

   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         "spin",
  59         "spin port",
  60         0,
  61         spinc_probe,
  62         spinc_init,
  63         spinc_putchar,
  64         spinc_getchar,
  65         spinc_ischar,
  66         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 }