display.c revision 1.19
1 /* $NetBSD: display.c,v 1.19 2024/10/20 13:49:41 mlelstv Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Juergen Hannken-Illjes. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/ioctl.h> 33 #include <sys/time.h> 34 35 #include <dev/wscons/wsconsio.h> 36 37 #include <err.h> 38 #include <errno.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 43 #include "wsconsctl.h" 44 45 static int border; 46 static int dpytype; 47 static struct wsdisplay_usefontdata font; 48 static struct wsdisplay_getfont gfont; 49 static char fontname_buf[256]; 50 static struct wsdisplay_param backlight; 51 static struct wsdisplay_param brightness; 52 static struct wsdisplay_param contrast; 53 static struct wsdisplay_scroll_data scroll_l; 54 static struct wsdisplayio_edid_info edid_info; 55 static int msg_default_attrs, msg_default_bg, msg_default_fg; 56 static int msg_kernel_attrs, msg_kernel_bg, msg_kernel_fg; 57 static int splash_enable, splash_progress; 58 59 struct field display_field_tab[] = { 60 { "border", &border, FMT_COLOR, 0 }, 61 { "type", &dpytype, FMT_DPYTYPE, FLG_RDONLY }, 62 { "font", &font.name, FMT_STRING, 0 }, 63 { "backlight", &backlight.curval, FMT_UINT, 0 }, 64 { "brightness", &brightness.curval, FMT_UINT, FLG_MODIFY }, 65 { "contrast", &contrast.curval, FMT_UINT, FLG_MODIFY }, 66 { "scroll.fastlines", &scroll_l.fastlines, FMT_UINT, FLG_MODIFY }, 67 { "scroll.slowlines", &scroll_l.slowlines, FMT_UINT, FLG_MODIFY }, 68 { "edid", &edid_info, FMT_EDID, FLG_RDONLY|FLG_NOAUTO }, 69 { "msg.default.attrs", &msg_default_attrs, FMT_ATTRS, 0 }, 70 { "msg.default.bg", &msg_default_bg, FMT_COLOR, 0 }, 71 { "msg.default.fg", &msg_default_fg, FMT_COLOR, 0 }, 72 { "msg.kernel.attrs", &msg_kernel_attrs, FMT_ATTRS, 0 }, 73 { "msg.kernel.bg", &msg_kernel_bg, FMT_COLOR, 0 }, 74 { "msg.kernel.fg", &msg_kernel_fg, FMT_COLOR, 0 }, 75 { "splash.enable", &splash_enable, FMT_UINT, FLG_WRONLY }, 76 { "splash.progress", &splash_progress, FMT_UINT, FLG_WRONLY }, 77 }; 78 79 int display_field_tab_len = sizeof(display_field_tab) / 80 sizeof(display_field_tab[0]); 81 82 static int 83 display_get_edid(int fd, struct wsdisplayio_edid_info *ei) 84 { 85 size_t sz = 256; 86 int res; 87 88 while (sz <= 65536) { 89 ei->buffer_size = sz; 90 ei->edid_data = malloc(sz); 91 if (ei->edid_data == NULL) { 92 res = -1; 93 break; 94 } 95 96 res = ioctl(fd, WSDISPLAYIO_GET_EDID, ei); 97 if (res == 0 || errno != EAGAIN) 98 break; 99 100 free(ei->edid_data); 101 ei->edid_data = NULL; 102 sz *= 2; 103 } 104 105 return res; 106 } 107 108 void 109 display_get_values(int fd) 110 { 111 if (field_by_value(&font.name)->flags & FLG_GET) { 112 gfont.gf_name = fontname_buf; 113 gfont.gf_size = sizeof(fontname_buf); 114 font.name = gfont.gf_name; 115 if (ioctl(fd, WSDISPLAYIO_GFONT, &gfont) < 0) 116 field_disable_by_value(&font.name); 117 } 118 119 if (field_by_value(&dpytype)->flags & FLG_GET) 120 if (ioctl(fd, WSDISPLAYIO_GTYPE, &dpytype) < 0) 121 err(EXIT_FAILURE, "WSDISPLAYIO_GTYPE"); 122 123 if (field_by_value(&border)->flags & FLG_GET) 124 if (ioctl(fd, WSDISPLAYIO_GBORDER, &border) < 0) 125 field_disable_by_value(&border); 126 127 if (field_by_value(&backlight.curval)->flags & FLG_GET) { 128 backlight.param = WSDISPLAYIO_PARAM_BACKLIGHT; 129 if (ioctl(fd, WSDISPLAYIO_GETPARAM, &backlight) < 0) 130 field_disable_by_value(&backlight.curval); 131 } 132 133 if (field_by_value(&brightness.curval)->flags & FLG_GET) { 134 brightness.param = WSDISPLAYIO_PARAM_BRIGHTNESS; 135 if (ioctl(fd, WSDISPLAYIO_GETPARAM, &brightness)) 136 field_disable_by_value(&brightness.curval); 137 } 138 139 if (field_by_value(&contrast.curval)->flags & FLG_GET) { 140 contrast.param = WSDISPLAYIO_PARAM_CONTRAST; 141 if (ioctl(fd, WSDISPLAYIO_GETPARAM, &contrast)) 142 field_disable_by_value(&contrast.curval); 143 } 144 145 if (field_by_value(&msg_default_attrs)->flags & FLG_GET || 146 field_by_value(&msg_default_bg)->flags & FLG_GET || 147 field_by_value(&msg_default_fg)->flags & FLG_GET || 148 field_by_value(&msg_kernel_attrs)->flags & FLG_GET || 149 field_by_value(&msg_kernel_bg)->flags & FLG_GET || 150 field_by_value(&msg_kernel_fg)->flags & FLG_GET) { 151 struct wsdisplay_msgattrs ma; 152 153 if (ioctl(fd, WSDISPLAYIO_GMSGATTRS, &ma) < 0) { 154 field_disable_by_value(&msg_default_attrs); 155 field_disable_by_value(&msg_default_bg); 156 field_disable_by_value(&msg_default_fg); 157 field_disable_by_value(&msg_kernel_attrs); 158 field_disable_by_value(&msg_kernel_bg); 159 field_disable_by_value(&msg_kernel_fg); 160 } else { 161 msg_default_attrs = ma.default_attrs; 162 if (ma.default_attrs & WSATTR_WSCOLORS) { 163 msg_default_bg = ma.default_bg; 164 msg_default_fg = ma.default_fg; 165 } else 166 msg_default_bg = msg_default_fg = -1; 167 168 msg_kernel_attrs = ma.kernel_attrs; 169 if (ma.kernel_attrs & WSATTR_WSCOLORS) { 170 msg_kernel_bg = ma.kernel_bg; 171 msg_kernel_fg = ma.kernel_fg; 172 } else 173 msg_kernel_bg = msg_kernel_fg = -1; 174 } 175 } 176 177 if (field_by_value(&scroll_l.fastlines)->flags & FLG_GET || 178 field_by_value(&scroll_l.slowlines)->flags & FLG_GET) { 179 if (ioctl(fd, WSDISPLAYIO_DGSCROLL, &scroll_l) < 0) { 180 field_disable_by_value(&scroll_l.fastlines); 181 field_disable_by_value(&scroll_l.slowlines); 182 } 183 } 184 185 if (field_by_value(&edid_info)->flags & FLG_GET) { 186 if (display_get_edid(fd, &edid_info) < 0) 187 field_disable_by_value(&edid_info); 188 } 189 } 190 191 void 192 display_put_values(int fd) 193 { 194 195 if (field_by_value(&font.name)->flags & FLG_SET) { 196 if (ioctl(fd, WSDISPLAYIO_SFONT, &font) < 0) 197 err(EXIT_FAILURE, "WSDISPLAYIO_SFONT"); 198 pr_field(field_by_value(&font.name), " -> "); 199 } 200 201 if (field_by_value(&border)->flags & FLG_SET) { 202 if (ioctl(fd, WSDISPLAYIO_SBORDER, &border) < 0) 203 err(EXIT_FAILURE, "WSDISPLAYIO_SBORDER"); 204 pr_field(field_by_value(&border), " -> "); 205 } 206 207 if (field_by_value(&backlight.curval)->flags & FLG_SET) { 208 backlight.param = WSDISPLAYIO_PARAM_BACKLIGHT; 209 if (ioctl(fd, WSDISPLAYIO_SETPARAM, &backlight) < 0) 210 err(EXIT_FAILURE, "WSDISPLAYIO_PARAM_BACKLIGHT"); 211 pr_field(field_by_value(&backlight.curval), " -> "); 212 } 213 214 if (field_by_value(&brightness.curval)->flags & FLG_SET) { 215 brightness.param = WSDISPLAYIO_PARAM_BRIGHTNESS; 216 if (ioctl(fd, WSDISPLAYIO_SETPARAM, &brightness) < 0) 217 err(EXIT_FAILURE, "WSDISPLAYIO_PARAM_BRIGHTNESS"); 218 pr_field(field_by_value(&brightness.curval), " -> "); 219 } 220 221 if (field_by_value(&contrast.curval)->flags & FLG_SET) { 222 contrast.param = WSDISPLAYIO_PARAM_CONTRAST; 223 if (ioctl(fd, WSDISPLAYIO_SETPARAM, &contrast) < 0) 224 err(EXIT_FAILURE, "WSDISPLAYIO_PARAM_CONTRAST"); 225 pr_field(field_by_value(&contrast.curval), " -> "); 226 } 227 228 if (field_by_value(&splash_enable)->flags & FLG_SET) { 229 if (ioctl(fd, WSDISPLAYIO_SSPLASH, &splash_enable) < 0) 230 err(EXIT_FAILURE, "WSDISPLAYIO_SSPLASH"); 231 pr_field(field_by_value(&splash_enable), " -> "); 232 } 233 234 if (field_by_value(&splash_progress)->flags & FLG_SET) { 235 if (ioctl(fd, WSDISPLAYIO_SPROGRESS, &splash_progress) < 0) 236 err(EXIT_FAILURE, "WSDISPLAYIO_SPROGRESS"); 237 pr_field(field_by_value(&splash_progress), " -> "); 238 } 239 240 if (field_by_value(&msg_default_attrs)->flags & FLG_SET || 241 field_by_value(&msg_default_bg)->flags & FLG_SET || 242 field_by_value(&msg_default_fg)->flags & FLG_SET || 243 field_by_value(&msg_kernel_attrs)->flags & FLG_SET || 244 field_by_value(&msg_kernel_bg)->flags & FLG_SET || 245 field_by_value(&msg_kernel_fg)->flags & FLG_SET) { 246 struct wsdisplay_msgattrs ma; 247 248 if (ioctl(fd, WSDISPLAYIO_GMSGATTRS, &ma) < 0) 249 err(EXIT_FAILURE, "WSDISPLAYIO_GMSGATTRS"); 250 251 if (field_by_value(&msg_default_attrs)->flags & FLG_SET) { 252 ma.default_attrs = msg_default_attrs; 253 pr_field(field_by_value(&msg_default_attrs), " -> "); 254 } 255 if (ma.default_attrs & WSATTR_WSCOLORS) { 256 if (field_by_value(&msg_default_bg)->flags & FLG_SET) { 257 ma.default_bg = msg_default_bg; 258 pr_field(field_by_value(&msg_default_bg), 259 " -> "); 260 } 261 if (field_by_value(&msg_default_fg)->flags & FLG_SET) { 262 ma.default_fg = msg_default_fg; 263 pr_field(field_by_value(&msg_default_fg), 264 " -> "); 265 } 266 } 267 268 if (field_by_value(&msg_kernel_attrs)->flags & FLG_SET) { 269 ma.kernel_attrs = msg_kernel_attrs; 270 pr_field(field_by_value(&msg_kernel_attrs), " -> "); 271 } 272 if (ma.default_attrs & WSATTR_WSCOLORS) { 273 if (field_by_value(&msg_kernel_bg)->flags & FLG_SET) { 274 ma.kernel_bg = msg_kernel_bg; 275 pr_field(field_by_value(&msg_kernel_bg), 276 " -> "); 277 } 278 if (field_by_value(&msg_kernel_fg)->flags & FLG_SET) { 279 ma.kernel_fg = msg_kernel_fg; 280 pr_field(field_by_value(&msg_kernel_fg), 281 " -> "); 282 } 283 } 284 285 if (ioctl(fd, WSDISPLAYIO_SMSGATTRS, &ma) < 0) 286 err(EXIT_FAILURE, "WSDISPLAYIO_SMSGATTRS"); 287 } 288 289 scroll_l.which = 0; 290 if (field_by_value(&scroll_l.fastlines)->flags & FLG_SET) 291 scroll_l.which |= WSDISPLAY_SCROLL_DOFASTLINES; 292 if (field_by_value(&scroll_l.slowlines)->flags & FLG_SET) 293 scroll_l.which |= WSDISPLAY_SCROLL_DOSLOWLINES; 294 if (scroll_l.which != 0 && 295 ioctl(fd, WSDISPLAYIO_DSSCROLL, &scroll_l) < 0) 296 err(EXIT_FAILURE, "WSDISPLAYIO_DSSCROLL"); 297 if (scroll_l.which & WSDISPLAY_SCROLL_DOFASTLINES) 298 pr_field(field_by_value(&scroll_l.fastlines), " -> "); 299 if (scroll_l.which & WSDISPLAY_SCROLL_DOSLOWLINES) 300 pr_field(field_by_value(&scroll_l.slowlines), " -> "); 301 } 302
Indexes created Wed Sep 24 05:09:52 GMT 2025