spinconsole.c revision 199857
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: head/sys/boot/i386/libi386/spinconsole.c 199857 2009-11-27 04:00:52Z sobomax $"); 40 41#include <stand.h> 42#include <bootstrap.h> 43 44extern void get_pos(int *x, int *y); 45extern void curs_move(int *_x, int *_y, int x, int y); 46extern void vidc_biosputchar(int c); 47 48static void spinc_probe(struct console *cp); 49static int spinc_init(int arg); 50static void spinc_putchar(int c); 51static int spinc_getchar(void); 52static int spinc_ischar(void); 53 54struct 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 65static void 66spinc_probe(struct console *cp) 67{ 68 cp->c_flags |= (C_PRESENTIN | C_PRESENTOUT); 69} 70 71static int 72spinc_init(int arg) 73{ 74 return(0); 75} 76 77static void 78spinc_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 get_pos(&curx, &cury); 90 if (curx > 0) 91 curs_move(&curx, &cury, curx - 1, cury); 92 vidc_biosputchar((char)tw_chars); 93 tw_chars = (tw_chars >> 8) | ((tw_chars & (unsigned long)0xFF) << 24); 94} 95 96static int 97spinc_getchar(void) 98{ 99 return(-1); 100} 101 102static int 103spinc_ischar(void) 104{ 105 return(0); 106} 107