1 /* $NetBSD: wsfontdev.c,v 1.16 2014/07/25 08:10:39 dholland Exp $ */ 2 3 /* 4 * Copyright (c) 2001 5 * Matthias Drochner. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: wsfontdev.c,v 1.16 2014/07/25 08:10:39 dholland Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/conf.h> 35 #include <sys/ioctl.h> 36 #include <sys/malloc.h> 37 #include <sys/event.h> 38 39 #include <dev/wsfont/wsfont.h> 40 #include <dev/wscons/wsconsio.h> /* XXX */ 41 42 void wsfontattach(int); 43 44 static int wsfont_isopen; 45 46 void 47 wsfontattach(int n) 48 { 49 50 wsfont_init(); 51 } 52 53 static int 54 wsfontopen(dev_t dev, int flag, int mode, 55 struct lwp *l) 56 { 57 58 if (wsfont_isopen) 59 return (EBUSY); 60 wsfont_isopen = 1; 61 return (0); 62 } 63 64 static int 65 wsfontclose(dev_t dev, int flag, int mode, 66 struct lwp *l) 67 { 68 69 wsfont_isopen = 0; 70 return (0); 71 } 72 73 static int 74 wsfontioctl(dev_t dev, u_long cmd, void *data, int flag, 75 struct lwp *l) 76 { 77 char nbuf[16]; 78 void *buf; 79 int res; 80 81 switch (cmd) { 82 case WSDISPLAYIO_LDFONT: 83 #define d ((struct wsdisplay_font *)data) 84 if (d->name) { 85 res = copyinstr(d->name, nbuf, sizeof(nbuf), 0); 86 if (res) 87 return (res); 88 d->name = nbuf; 89 } else 90 d->name = "loaded"; /* ??? */ 91 buf = malloc(d->fontheight * d->stride * d->numchars, 92 M_DEVBUF, M_WAITOK); 93 res = copyin(d->data, buf, 94 d->fontheight * d->stride * d->numchars); 95 if (res) { 96 free(buf, M_DEVBUF); 97 return (res); 98 } 99 d->data = buf; 100 res = wsfont_add(d, 1); 101 free(buf, M_DEVBUF); 102 #undef d 103 return (res); 104 default: 105 return (EINVAL); 106 } 107 } 108 109 const struct cdevsw wsfont_cdevsw = { 110 .d_open = wsfontopen, 111 .d_close = wsfontclose, 112 .d_read = noread, 113 .d_write = nowrite, 114 .d_ioctl = wsfontioctl, 115 .d_stop = nostop, 116 .d_tty = notty, 117 .d_poll = nopoll, 118 .d_mmap = nommap, 119 .d_kqfilter = nokqfilter, 120 .d_discard = nodiscard, 121 .d_flag = D_OTHER 122 }; 123