cgthree.c revision 1.2.2.2
1 1.2.2.2 bouyer /* $NetBSD: cgthree.c,v 1.2.2.2 2000/11/20 11:43:09 bouyer Exp $ */ 2 1.2.2.2 bouyer 3 1.2.2.2 bouyer /*- 4 1.2.2.2 bouyer * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 1.2.2.2 bouyer * All rights reserved. 6 1.2.2.2 bouyer * 7 1.2.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 bouyer * by Paul Kranenburg. 9 1.2.2.2 bouyer * 10 1.2.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.2.2.2 bouyer * are met: 13 1.2.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.2.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.2.2.2 bouyer * must display the following acknowledgement: 20 1.2.2.2 bouyer * This product includes software developed by the NetBSD 21 1.2.2.2 bouyer * Foundation, Inc. and its contributors. 22 1.2.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2.2.2 bouyer * contributors may be used to endorse or promote products derived 24 1.2.2.2 bouyer * from this software without specific prior written permission. 25 1.2.2.2 bouyer * 26 1.2.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.2.2.2 bouyer */ 38 1.2.2.2 bouyer 39 1.2.2.2 bouyer /* 40 1.2.2.2 bouyer * color display (cgthree) driver. 41 1.2.2.2 bouyer * 42 1.2.2.2 bouyer * Does not handle interrupts, even though they can occur. 43 1.2.2.2 bouyer * 44 1.2.2.2 bouyer * XXX should defer colormap updates to vertical retrace interrupts 45 1.2.2.2 bouyer */ 46 1.2.2.2 bouyer 47 1.2.2.2 bouyer #include <sys/param.h> 48 1.2.2.2 bouyer #include <sys/systm.h> 49 1.2.2.2 bouyer #include <sys/buf.h> 50 1.2.2.2 bouyer #include <sys/device.h> 51 1.2.2.2 bouyer #include <sys/ioctl.h> 52 1.2.2.2 bouyer #include <sys/malloc.h> 53 1.2.2.2 bouyer #include <sys/mman.h> 54 1.2.2.2 bouyer #include <sys/tty.h> 55 1.2.2.2 bouyer #include <sys/conf.h> 56 1.2.2.2 bouyer 57 1.2.2.2 bouyer #include <machine/bus.h> 58 1.2.2.2 bouyer #include <machine/autoconf.h> 59 1.2.2.2 bouyer 60 1.2.2.2 bouyer #include <dev/sun/fbio.h> 61 1.2.2.2 bouyer #include <dev/sun/fbvar.h> 62 1.2.2.2 bouyer 63 1.2.2.2 bouyer #include <dev/sun/btreg.h> 64 1.2.2.2 bouyer #include <dev/sun/btvar.h> 65 1.2.2.2 bouyer #include <dev/sun/cgthreereg.h> 66 1.2.2.2 bouyer #include <dev/sun/cgthreevar.h> 67 1.2.2.2 bouyer 68 1.2.2.2 bouyer #include <machine/conf.h> 69 1.2.2.2 bouyer 70 1.2.2.2 bouyer static void cgthreeunblank(struct device *); 71 1.2.2.2 bouyer static void cgthreeloadcmap(struct cgthree_softc *, int, int); 72 1.2.2.2 bouyer static void cgthree_set_video(struct cgthree_softc *, int); 73 1.2.2.2 bouyer static int cgthree_get_video(struct cgthree_softc *); 74 1.2.2.2 bouyer 75 1.2.2.2 bouyer /* cdevsw prototypes */ 76 1.2.2.2 bouyer cdev_decl(cgthree); 77 1.2.2.2 bouyer 78 1.2.2.2 bouyer extern struct cfdriver cgthree_cd; 79 1.2.2.2 bouyer 80 1.2.2.2 bouyer /* frame buffer generic driver */ 81 1.2.2.2 bouyer static struct fbdriver cgthreefbdriver = { 82 1.2.2.2 bouyer cgthreeunblank, cgthreeopen, cgthreeclose, cgthreeioctl, cgthreepoll, 83 1.2.2.2 bouyer cgthreemmap 84 1.2.2.2 bouyer }; 85 1.2.2.2 bouyer 86 1.2.2.2 bouyer /* Video control parameters */ 87 1.2.2.2 bouyer struct cg3_videoctrl { 88 1.2.2.2 bouyer unsigned char sense; /* Monitor sense value */ 89 1.2.2.2 bouyer unsigned char vctrl[12]; 90 1.2.2.2 bouyer } cg3_videoctrl[] = { 91 1.2.2.2 bouyer /* Missing entries: sense 0x10, 0x30, 0x50 */ 92 1.2.2.2 bouyer { 0x40, /* this happens to be my 19'' 1152x900 gray-scale monitor */ 93 1.2.2.2 bouyer {0xbb, 0x2b, 0x3, 0xb, 0xb3, 0x3, 0xaf, 0x2b, 0x2, 0xa, 0xff, 0x1} 94 1.2.2.2 bouyer }, 95 1.2.2.2 bouyer { 0x00, /* default? must be last */ 96 1.2.2.2 bouyer {0xbb, 0x2b, 0x3, 0xb, 0xb3, 0x3, 0xaf, 0x2b, 0x2, 0xa, 0xff, 0x1} 97 1.2.2.2 bouyer } 98 1.2.2.2 bouyer }; 99 1.2.2.2 bouyer 100 1.2.2.2 bouyer 101 1.2.2.2 bouyer void 102 1.2.2.2 bouyer cgthreeattach(sc, name, isconsole) 103 1.2.2.2 bouyer struct cgthree_softc *sc; 104 1.2.2.2 bouyer char *name; 105 1.2.2.2 bouyer int isconsole; 106 1.2.2.2 bouyer { 107 1.2.2.2 bouyer int i; 108 1.2.2.2 bouyer struct fbdevice *fb = &sc->sc_fb; 109 1.2.2.2 bouyer volatile struct fbcontrol *fbc = sc->sc_fbc; 110 1.2.2.2 bouyer volatile struct bt_regs *bt = &fbc->fbc_dac; 111 1.2.2.2 bouyer 112 1.2.2.2 bouyer fb->fb_driver = &cgthreefbdriver; 113 1.2.2.2 bouyer fb->fb_type.fb_cmsize = 256; 114 1.2.2.2 bouyer fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes; 115 1.2.2.2 bouyer printf(": %s, %d x %d", name, 116 1.2.2.2 bouyer fb->fb_type.fb_width, fb->fb_type.fb_height); 117 1.2.2.2 bouyer 118 1.2.2.2 bouyer /* Transfer video magic to board, if it's not running */ 119 1.2.2.2 bouyer if ((fbc->fbc_ctrl & FBC_TIMING) == 0) { 120 1.2.2.2 bouyer int sense = (fbc->fbc_status & FBS_MSENSE); 121 1.2.2.2 bouyer /* Search table for video timings fitting this monitor */ 122 1.2.2.2 bouyer for (i = 0; i < sizeof(cg3_videoctrl)/sizeof(cg3_videoctrl[0]); 123 1.2.2.2 bouyer i++) { 124 1.2.2.2 bouyer int j; 125 1.2.2.2 bouyer if (sense != cg3_videoctrl[i].sense) 126 1.2.2.2 bouyer continue; 127 1.2.2.2 bouyer 128 1.2.2.2 bouyer printf(" setting video ctrl"); 129 1.2.2.2 bouyer for (j = 0; j < 12; j++) 130 1.2.2.2 bouyer fbc->fbc_vcontrol[j] = 131 1.2.2.2 bouyer cg3_videoctrl[i].vctrl[j]; 132 1.2.2.2 bouyer fbc->fbc_ctrl |= FBC_TIMING; 133 1.2.2.2 bouyer break; 134 1.2.2.2 bouyer } 135 1.2.2.2 bouyer } 136 1.2.2.2 bouyer 137 1.2.2.2 bouyer /* Initialize the default color map. */ 138 1.2.2.2 bouyer bt_initcmap(&sc->sc_cmap, 256); 139 1.2.2.2 bouyer cgthreeloadcmap(sc, 0, 256); 140 1.2.2.2 bouyer 141 1.2.2.2 bouyer /* make sure we are not blanked */ 142 1.2.2.2 bouyer cgthree_set_video(sc, 1); 143 1.2.2.2 bouyer BT_INIT(bt, 0); 144 1.2.2.2 bouyer 145 1.2.2.2 bouyer if (isconsole) { 146 1.2.2.2 bouyer printf(" (console)\n"); 147 1.2.2.2 bouyer #ifdef RASTERCONSOLE 148 1.2.2.2 bouyer fbrcons_init(fb); 149 1.2.2.2 bouyer #endif 150 1.2.2.2 bouyer } else 151 1.2.2.2 bouyer printf("\n"); 152 1.2.2.2 bouyer 153 1.2.2.2 bouyer fb_attach(fb, isconsole); 154 1.2.2.2 bouyer } 155 1.2.2.2 bouyer 156 1.2.2.2 bouyer 157 1.2.2.2 bouyer int 158 1.2.2.2 bouyer cgthreeopen(dev, flags, mode, p) 159 1.2.2.2 bouyer dev_t dev; 160 1.2.2.2 bouyer int flags, mode; 161 1.2.2.2 bouyer struct proc *p; 162 1.2.2.2 bouyer { 163 1.2.2.2 bouyer int unit = minor(dev); 164 1.2.2.2 bouyer 165 1.2.2.2 bouyer if (unit >= cgthree_cd.cd_ndevs || cgthree_cd.cd_devs[unit] == NULL) 166 1.2.2.2 bouyer return (ENXIO); 167 1.2.2.2 bouyer return (0); 168 1.2.2.2 bouyer } 169 1.2.2.2 bouyer 170 1.2.2.2 bouyer int 171 1.2.2.2 bouyer cgthreeclose(dev, flags, mode, p) 172 1.2.2.2 bouyer dev_t dev; 173 1.2.2.2 bouyer int flags, mode; 174 1.2.2.2 bouyer struct proc *p; 175 1.2.2.2 bouyer { 176 1.2.2.2 bouyer 177 1.2.2.2 bouyer return (0); 178 1.2.2.2 bouyer } 179 1.2.2.2 bouyer 180 1.2.2.2 bouyer int 181 1.2.2.2 bouyer cgthreeioctl(dev, cmd, data, flags, p) 182 1.2.2.2 bouyer dev_t dev; 183 1.2.2.2 bouyer u_long cmd; 184 1.2.2.2 bouyer caddr_t data; 185 1.2.2.2 bouyer int flags; 186 1.2.2.2 bouyer struct proc *p; 187 1.2.2.2 bouyer { 188 1.2.2.2 bouyer struct cgthree_softc *sc = cgthree_cd.cd_devs[minor(dev)]; 189 1.2.2.2 bouyer struct fbgattr *fba; 190 1.2.2.2 bouyer int error; 191 1.2.2.2 bouyer 192 1.2.2.2 bouyer switch (cmd) { 193 1.2.2.2 bouyer 194 1.2.2.2 bouyer case FBIOGTYPE: 195 1.2.2.2 bouyer *(struct fbtype *)data = sc->sc_fb.fb_type; 196 1.2.2.2 bouyer break; 197 1.2.2.2 bouyer 198 1.2.2.2 bouyer case FBIOGATTR: 199 1.2.2.2 bouyer fba = (struct fbgattr *)data; 200 1.2.2.2 bouyer fba->real_type = sc->sc_fb.fb_type.fb_type; 201 1.2.2.2 bouyer fba->owner = 0; /* XXX ??? */ 202 1.2.2.2 bouyer fba->fbtype = sc->sc_fb.fb_type; 203 1.2.2.2 bouyer fba->sattr.flags = 0; 204 1.2.2.2 bouyer fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type; 205 1.2.2.2 bouyer fba->sattr.dev_specific[0] = -1; 206 1.2.2.2 bouyer fba->emu_types[0] = sc->sc_fb.fb_type.fb_type; 207 1.2.2.2 bouyer fba->emu_types[1] = -1; 208 1.2.2.2 bouyer break; 209 1.2.2.2 bouyer 210 1.2.2.2 bouyer case FBIOGETCMAP: 211 1.2.2.2 bouyer #define p ((struct fbcmap *)data) 212 1.2.2.2 bouyer return (bt_getcmap(p, &sc->sc_cmap, 256, 1)); 213 1.2.2.2 bouyer 214 1.2.2.2 bouyer case FBIOPUTCMAP: 215 1.2.2.2 bouyer /* copy to software map */ 216 1.2.2.2 bouyer error = bt_putcmap(p, &sc->sc_cmap, 256, 1); 217 1.2.2.2 bouyer if (error) 218 1.2.2.2 bouyer return (error); 219 1.2.2.2 bouyer /* now blast them into the chip */ 220 1.2.2.2 bouyer /* XXX should use retrace interrupt */ 221 1.2.2.2 bouyer cgthreeloadcmap(sc, p->index, p->count); 222 1.2.2.2 bouyer #undef p 223 1.2.2.2 bouyer break; 224 1.2.2.2 bouyer 225 1.2.2.2 bouyer case FBIOGVIDEO: 226 1.2.2.2 bouyer *(int *)data = cgthree_get_video(sc); 227 1.2.2.2 bouyer break; 228 1.2.2.2 bouyer 229 1.2.2.2 bouyer case FBIOSVIDEO: 230 1.2.2.2 bouyer cgthree_set_video(sc, *(int *)data); 231 1.2.2.2 bouyer break; 232 1.2.2.2 bouyer 233 1.2.2.2 bouyer default: 234 1.2.2.2 bouyer return (ENOTTY); 235 1.2.2.2 bouyer } 236 1.2.2.2 bouyer return (0); 237 1.2.2.2 bouyer } 238 1.2.2.2 bouyer 239 1.2.2.2 bouyer int 240 1.2.2.2 bouyer cgthreepoll(dev, events, p) 241 1.2.2.2 bouyer dev_t dev; 242 1.2.2.2 bouyer int events; 243 1.2.2.2 bouyer struct proc *p; 244 1.2.2.2 bouyer { 245 1.2.2.2 bouyer 246 1.2.2.2 bouyer return (seltrue(dev, events, p)); 247 1.2.2.2 bouyer } 248 1.2.2.2 bouyer 249 1.2.2.2 bouyer /* 250 1.2.2.2 bouyer * Undo the effect of an FBIOSVIDEO that turns the video off. 251 1.2.2.2 bouyer */ 252 1.2.2.2 bouyer static void 253 1.2.2.2 bouyer cgthreeunblank(dev) 254 1.2.2.2 bouyer struct device *dev; 255 1.2.2.2 bouyer { 256 1.2.2.2 bouyer 257 1.2.2.2 bouyer cgthree_set_video((struct cgthree_softc *)dev, 1); 258 1.2.2.2 bouyer } 259 1.2.2.2 bouyer 260 1.2.2.2 bouyer static void 261 1.2.2.2 bouyer cgthree_set_video(sc, enable) 262 1.2.2.2 bouyer struct cgthree_softc *sc; 263 1.2.2.2 bouyer int enable; 264 1.2.2.2 bouyer { 265 1.2.2.2 bouyer 266 1.2.2.2 bouyer if (enable) 267 1.2.2.2 bouyer sc->sc_fbc->fbc_ctrl |= FBC_VENAB; 268 1.2.2.2 bouyer else 269 1.2.2.2 bouyer sc->sc_fbc->fbc_ctrl &= ~FBC_VENAB; 270 1.2.2.2 bouyer } 271 1.2.2.2 bouyer 272 1.2.2.2 bouyer static int 273 1.2.2.2 bouyer cgthree_get_video(sc) 274 1.2.2.2 bouyer struct cgthree_softc *sc; 275 1.2.2.2 bouyer { 276 1.2.2.2 bouyer 277 1.2.2.2 bouyer return ((sc->sc_fbc->fbc_ctrl & FBC_VENAB) != 0); 278 1.2.2.2 bouyer } 279 1.2.2.2 bouyer 280 1.2.2.2 bouyer /* 281 1.2.2.2 bouyer * Load a subset of the current (new) colormap into the Brooktree DAC. 282 1.2.2.2 bouyer */ 283 1.2.2.2 bouyer static void 284 1.2.2.2 bouyer cgthreeloadcmap(sc, start, ncolors) 285 1.2.2.2 bouyer struct cgthree_softc *sc; 286 1.2.2.2 bouyer int start, ncolors; 287 1.2.2.2 bouyer { 288 1.2.2.2 bouyer volatile struct bt_regs *bt; 289 1.2.2.2 bouyer u_int *ip; 290 1.2.2.2 bouyer int count; 291 1.2.2.2 bouyer 292 1.2.2.2 bouyer ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */ 293 1.2.2.2 bouyer count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3; 294 1.2.2.2 bouyer bt = &sc->sc_fbc->fbc_dac; 295 1.2.2.2 bouyer bt->bt_addr = BT_D4M4(start); 296 1.2.2.2 bouyer while (--count >= 0) 297 1.2.2.2 bouyer bt->bt_cmap = *ip++; 298 1.2.2.2 bouyer } 299 1.2.2.2 bouyer 300 1.2.2.2 bouyer /* 301 1.2.2.2 bouyer * Return the address that would map the given device at the given 302 1.2.2.2 bouyer * offset, allowing for the given protection, or return -1 for error. 303 1.2.2.2 bouyer * 304 1.2.2.2 bouyer * The cg3 is mapped starting at 256KB, for pseudo-compatibility with 305 1.2.2.2 bouyer * the cg4 (which had an overlay plane in the first 128K and an enable 306 1.2.2.2 bouyer * plane in the next 128K). X11 uses only 256k+ region but tries to 307 1.2.2.2 bouyer * map the whole thing, so we repeatedly map the first 256K to the 308 1.2.2.2 bouyer * first page of the color screen. If someone tries to use the overlay 309 1.2.2.2 bouyer * and enable regions, they will get a surprise.... 310 1.2.2.2 bouyer * 311 1.2.2.2 bouyer * As well, mapping at an offset of 0x04000000 causes the cg3 to be 312 1.2.2.2 bouyer * mapped in flat mode without the cg4 emulation. 313 1.2.2.2 bouyer */ 314 1.2.2.2 bouyer paddr_t 315 1.2.2.2 bouyer cgthreemmap(dev, off, prot) 316 1.2.2.2 bouyer dev_t dev; 317 1.2.2.2 bouyer off_t off; 318 1.2.2.2 bouyer int prot; 319 1.2.2.2 bouyer { 320 1.2.2.2 bouyer struct cgthree_softc *sc = cgthree_cd.cd_devs[minor(dev)]; 321 1.2.2.2 bouyer bus_space_handle_t bh; 322 1.2.2.2 bouyer 323 1.2.2.2 bouyer #define START (128*1024 + 128*1024) 324 1.2.2.2 bouyer #define NOOVERLAY (0x04000000) 325 1.2.2.2 bouyer 326 1.2.2.2 bouyer if (off & PGOFSET) 327 1.2.2.2 bouyer panic("cgthreemmap"); 328 1.2.2.2 bouyer if (off < 0) 329 1.2.2.2 bouyer return (-1); 330 1.2.2.2 bouyer if ((u_int)off >= NOOVERLAY) 331 1.2.2.2 bouyer off -= NOOVERLAY; 332 1.2.2.2 bouyer else if ((u_int)off >= START) 333 1.2.2.2 bouyer off -= START; 334 1.2.2.2 bouyer else 335 1.2.2.2 bouyer off = 0; 336 1.2.2.2 bouyer 337 1.2.2.2 bouyer if (off >= sc->sc_fb.fb_type.fb_size) 338 1.2.2.2 bouyer return (-1); 339 1.2.2.2 bouyer 340 1.2.2.2 bouyer if (bus_space_mmap(sc->sc_bustag, 341 1.2.2.2 bouyer sc->sc_btype, 342 1.2.2.2 bouyer sc->sc_paddr + CG3REG_MEM + off, 343 1.2.2.2 bouyer BUS_SPACE_MAP_LINEAR, &bh)) 344 1.2.2.2 bouyer return (-1); 345 1.2.2.2 bouyer 346 1.2.2.2 bouyer return ((paddr_t)bh); 347 1.2.2.2 bouyer } 348
Indexes created Fri Oct 03 02:09:57 GMT 2025