| 1 | /* $NetBSD: wsfontdev.c,v 1.17 2015/08/20 14:40:18 christos 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 1.17 2015/08/20 14:40:18 christos 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 | #include "ioconf.h" |
| 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 | |