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 static void spinc_probe(struct console *cp); 45 static int spinc_init(int arg); 46 static void spinc_putchar(int c); 47 static int spinc_getchar(void); 48 static int spinc_ischar(void); 49 50 extern struct console *consoles[]; 51 52 struct console spinconsole = { 53 "spinconsole", 54 "spin port", 55 0, 56 spinc_probe, 57 spinc_init, 58 spinc_putchar, 59 spinc_getchar, 60 spinc_ischar 61 }; 62 63 static struct console *parent = NULL; 64 65 static void 66 spinc_probe(struct console *cp) 67 { 68 69 if (parent == NULL) 70 parent = consoles[0]; 71 parent->c_probe(cp); 72 } 73 74 static int 75 spinc_init(int arg) 76 { 77 78 return(parent->c_init(arg)); 79 } 80 81 static void 82 spinc_putchar(int c) 83 { 84 static unsigned tw_chars = 0x5C2D2F7C; /* "\-/|" */ 85 static time_t lasttime = 0; 86 time_t now; 87 88 now = time(0); 89 if (now < (lasttime + 1)) 90 return; 91 #ifdef TERM_EMU 92 if (lasttime > 0) 93 parent->c_out('\b'); 94 #endif 95 lasttime = now; 96 parent->c_out((char)tw_chars); 97 tw_chars = (tw_chars >> 8) | ((tw_chars & (unsigned long)0xFF) << 24); 98 } 99 100 static int 101 spinc_getchar(void) 102 { 103 104 return(-1); 105 } 106 107 static int 108 spinc_ischar(void) 109 { 110 111 return(0); 112 } 113