1 /*- 2 * Copyright (c) 2013 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Aleksandr Rybalko under sponsorship from the 6 * FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/malloc.h> 38 #include <sys/queue.h> 39 #include <sys/fbio.h> 40 #include <dev/vt/vt.h> 41 #include <dev/vt/hw/fb/vt_fb.h> 42 #include <dev/vt/colors/vt_termcolors.h> 43 44 static int vt_fb_ioctl(struct vt_device *vd, u_long cmd, caddr_t data, 45 struct thread *td); 46 static int vt_fb_mmap(struct vt_device *vd, vm_ooffset_t offset, 47 vm_paddr_t *paddr, int prot, vm_memattr_t *memattr); 48 49 static struct vt_driver vt_fb_driver = { 50 .vd_init = vt_fb_init, 51 .vd_blank = vt_fb_blank, 52 .vd_bitbltchr = vt_fb_bitbltchr, 53 .vd_postswitch = vt_fb_postswitch, 54 .vd_priority = VD_PRIORITY_GENERIC+10, 55 .vd_fb_ioctl = vt_fb_ioctl, 56 .vd_fb_mmap = vt_fb_mmap, 57 }; 58 59 static int 60 vt_fb_ioctl(struct vt_device *vd, u_long cmd, caddr_t data, struct thread *td) 61 { 62 struct fb_info *info; 63 64 info = vd->vd_softc; 65 66 if (info->fb_ioctl == NULL) 67 return (-1); 68 69 return (info->fb_ioctl(info->fb_cdev, cmd, data, 0, td)); 70 } 71 72 static int vt_fb_mmap(struct vt_device *vd, vm_ooffset_t offset, 73 vm_paddr_t *paddr, int prot, vm_memattr_t *memattr) 74 { 75 struct fb_info *info; 76 77 info = vd->vd_softc; 78 79 if (info->fb_ioctl == NULL) 80 return (ENXIO); 81 82 return (info->fb_mmap(info->fb_cdev, offset, paddr, prot, memattr)); 83 } 84 85 void 86 vt_fb_blank(struct vt_device *vd, term_color_t color) 87 { 88 struct fb_info *info; 89 uint32_t c; 90 u_int o; 91 92 info = vd->vd_softc; 93 c = info->fb_cmap[color]; 94 95 switch (FBTYPE_GET_BYTESPP(info)) { 96 case 1: 97 for (o = 0; o < info->fb_stride; o++) 98 info->wr1(info, o, c); 99 break; 100 case 2: 101 for (o = 0; o < info->fb_stride; o += 2) 102 info->wr2(info, o, c); 103 break; 104 case 3: 105 /* line 0 */ 106 for (o = 0; o < info->fb_stride; o += 3) { 107 info->wr1(info, o, (c >> 16) & 0xff); 108 info->wr1(info, o + 1, (c >> 8) & 0xff); 109 info->wr1(info, o + 2, c & 0xff); 110 } 111 break; 112 case 4: 113 for (o = 0; o < info->fb_stride; o += 4) 114 info->wr4(info, o, c); 115 break; 116 default: 117 /* panic? */ 118 return; 119 } 120 /* Copy line0 to all other lines. */ 121 /* XXX will copy with borders. */ 122 for (o = info->fb_stride; o < info->fb_size; o += info->fb_stride) { 123 info->copy(info, o, 0, info->fb_stride); 124 } 125 } 126 127 void 128 vt_fb_bitbltchr(struct vt_device *vd, const uint8_t *src, const uint8_t *mask, 129 int bpl, vt_axis_t top, vt_axis_t left, unsigned int width, 130 unsigned int height, term_color_t fg, term_color_t bg) 131 { 132 struct fb_info *info; 133 uint32_t fgc, bgc, cc, o; 134 int c, l, bpp; 135 u_long line; 136 uint8_t b, m; 137 const uint8_t *ch; 138 139 info = vd->vd_softc; 140 bpp = FBTYPE_GET_BYTESPP(info); 141 fgc = info->fb_cmap[fg]; 142 bgc = info->fb_cmap[bg]; 143 b = m = 0; 144 if (bpl == 0) 145 bpl = (width + 7) >> 3; /* Bytes per sorce line. */ 146 147 /* Don't try to put off screen pixels */ 148 if (((left + width) > info->fb_width) || ((top + height) > 149 info->fb_height)) 150 return; 151 152 line = (info->fb_stride * top) + (left * bpp); 153 for (l = 0; l < height; l++) { 154 ch = src; 155 for (c = 0; c < width; c++) { 156 if (c % 8 == 0) 157 b = *ch++; 158 else 159 b <<= 1; 160 if (mask != NULL) { 161 if (c % 8 == 0) 162 m = *mask++; 163 else 164 m <<= 1; 165 /* Skip pixel write, if mask has no bit set. */ 166 if ((m & 0x80) == 0) 167 continue; 168 } 169 o = line + (c * bpp); 170 cc = b & 0x80 ? fgc : bgc; 171 172 switch(bpp) { 173 case 1: 174 info->wr1(info, o, cc); 175 break; 176 case 2: 177 info->wr2(info, o, cc); 178 break; 179 case 3: 180 /* Packed mode, so unaligned. Byte access. */ 181 info->wr1(info, o, (cc >> 16) & 0xff); 182 info->wr1(info, o + 1, (cc >> 8) & 0xff); 183 info->wr1(info, o + 2, cc & 0xff); 184 break; 185 case 4: 186 info->wr4(info, o, cc); 187 break; 188 default: 189 /* panic? */ 190 break; 191 } 192 } 193 line += info->fb_stride; 194 src += bpl; 195 } 196 } 197 198 void 199 vt_fb_postswitch(struct vt_device *vd) 200 { 201 struct fb_info *info; 202 203 info = vd->vd_softc; 204 205 if (info->enter != NULL) 206 info->enter(info->fb_priv); 207 } 208 209 static int 210 vt_fb_init_cmap(uint32_t *cmap, int depth) 211 { 212 213 switch (depth) { 214 case 8: 215 return (vt_generate_vga_palette(cmap, COLOR_FORMAT_RGB, 216 0x7, 5, 0x7, 2, 0x3, 0)); 217 case 15: 218 return (vt_generate_vga_palette(cmap, COLOR_FORMAT_RGB, 219 0x1f, 10, 0x1f, 5, 0x1f, 0)); 220 case 16: 221 return (vt_generate_vga_palette(cmap, COLOR_FORMAT_RGB, 222 0x1f, 11, 0x3f, 5, 0x1f, 0)); 223 case 24: 224 case 32: /* Ignore alpha. */ 225 return (vt_generate_vga_palette(cmap, COLOR_FORMAT_RGB, 226 0xff, 0, 0xff, 8, 0xff, 16)); 227 default: 228 return (1); 229 } 230 } 231 232 int 233 vt_fb_init(struct vt_device *vd) 234 { 235 struct fb_info *info; 236 int err; 237 238 info = vd->vd_softc; 239 vd->vd_height = info->fb_height; 240 vd->vd_width = info->fb_width; 241 242 if (info->fb_cmsize <= 0) { 243 err = vt_fb_init_cmap(info->fb_cmap, FBTYPE_GET_BPP(info)); 244 if (err) 245 return (CN_DEAD); 246 info->fb_cmsize = 16; 247 } 248 249 /* Clear the screen. */ 250 vt_fb_blank(vd, TC_BLACK); 251 252 /* Wakeup screen. KMS need this. */ 253 vt_fb_postswitch(vd); 254 255 return (CN_INTERNAL); 256 } 257 258 int 259 vt_fb_attach(struct fb_info *info) 260 { 261 262 vt_allocate(&vt_fb_driver, info); 263 264 return (0); 265 } 266 267 void 268 vt_fb_resume(void) 269 { 270 271 vt_resume(); 272 } 273 274 void 275 vt_fb_suspend(void) 276 { 277 278 vt_suspend(); 279 } 280