xcfb.c revision 1.41
1 /* $NetBSD: xcfb.c,v 1.41 2006/03/31 17:39:33 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 1999 Tohru Nishimura. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Tohru Nishimura 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: xcfb.c,v 1.41 2006/03/31 17:39:33 thorpej Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 #include <sys/buf.h> 42 #include <sys/ioctl.h> 43 44 #include <machine/bus.h> 45 #include <machine/intr.h> 46 47 #include <dev/wscons/wsconsio.h> 48 #include <dev/wscons/wsdisplayvar.h> 49 50 #include <dev/rasops/rasops.h> 51 #include <dev/wsfont/wsfont.h> 52 53 #include <dev/tc/tcvar.h> 54 #include <dev/tc/ioasicreg.h> 55 #include <dev/ic/ims332reg.h> 56 #include <pmax/pmax/maxine.h> 57 58 #include <uvm/uvm_extern.h> 59 60 struct hwcmap256 { 61 #define CMAP_SIZE 256 /* 256 R/G/B entries */ 62 u_int8_t r[CMAP_SIZE]; 63 u_int8_t g[CMAP_SIZE]; 64 u_int8_t b[CMAP_SIZE]; 65 }; 66 67 struct hwcursor64 { 68 struct wsdisplay_curpos cc_pos; 69 struct wsdisplay_curpos cc_hot; 70 struct wsdisplay_curpos cc_size; 71 struct wsdisplay_curpos cc_magic; /* not used by PMAG-DV */ 72 #define CURSOR_MAX_SIZE 64 73 u_int8_t cc_color[6]; 74 u_int64_t cc_image[CURSOR_MAX_SIZE]; 75 u_int64_t cc_mask[CURSOR_MAX_SIZE]; 76 }; 77 78 #define XCFB_FB_BASE (XINE_PHYS_CFB_START + 0x2000000) 79 #define XCFB_FB_SIZE 0x100000 80 81 #define IMS332_HIGH (IOASIC_SLOT_5_START) 82 #define IMS332_RLOW (IOASIC_SLOT_7_START) 83 #define IMS332_WLOW (IOASIC_SLOT_7_START + 0x20000) 84 85 struct xcfb_softc { 86 struct device sc_dev; 87 vaddr_t sc_vaddr; 88 size_t sc_size; 89 struct rasops_info *sc_ri; 90 struct hwcmap256 sc_cmap; /* software copy of colormap */ 91 struct hwcursor64 sc_cursor; /* software copy of cursor */ 92 int sc_blanked; 93 /* XXX MAXINE can take PMAG-DV vertical retrace interrupt XXX */ 94 int nscreens; 95 /* cursor coordinate is located at upper-left corner */ 96 int sc_csr; /* software copy of IMS332 CSR A */ 97 }; 98 99 static int xcfbmatch(struct device *, struct cfdata *, void *); 100 static void xcfbattach(struct device *, struct device *, void *); 101 102 CFATTACH_DECL(xcfb, sizeof(struct xcfb_softc), 103 xcfbmatch, xcfbattach, NULL, NULL); 104 105 static tc_addr_t xcfb_consaddr; 106 static struct rasops_info xcfb_console_ri; 107 static void xcfb_common_init(struct rasops_info *); 108 static void xcfbhwinit(caddr_t); 109 int xcfb_cnattach(void); 110 111 struct wsscreen_descr xcfb_stdscreen = { 112 "std", 0, 0, 113 0, /* textops */ 114 0, 0, 115 WSSCREEN_REVERSE 116 }; 117 118 static const struct wsscreen_descr *_xcfb_scrlist[] = { 119 &xcfb_stdscreen, 120 }; 121 122 static const struct wsscreen_list xcfb_screenlist = { 123 sizeof(_xcfb_scrlist) / sizeof(struct wsscreen_descr *), _xcfb_scrlist 124 }; 125 126 static int xcfbioctl(void *, u_long, caddr_t, int, struct lwp *); 127 static paddr_t xcfbmmap(void *, off_t, int); 128 129 static int xcfb_alloc_screen(void *, const struct wsscreen_descr *, 130 void **, int *, int *, long *); 131 static void xcfb_free_screen(void *, void *); 132 static int xcfb_show_screen(void *, void *, int, 133 void (*) (void *, int, int), void *); 134 135 static const struct wsdisplay_accessops xcfb_accessops = { 136 xcfbioctl, 137 xcfbmmap, 138 xcfb_alloc_screen, 139 xcfb_free_screen, 140 xcfb_show_screen, 141 0 /* load_font */ 142 }; 143 144 static int xcfbintr(void *); 145 static void xcfb_screenblank(struct xcfb_softc *); 146 static void xcfb_cmap_init(struct xcfb_softc *); 147 static int set_cmap(struct xcfb_softc *, struct wsdisplay_cmap *); 148 static int get_cmap(struct xcfb_softc *, struct wsdisplay_cmap *); 149 static int set_cursor(struct xcfb_softc *, struct wsdisplay_cursor *); 150 static int get_cursor(struct xcfb_softc *, struct wsdisplay_cursor *); 151 static void set_curpos(struct xcfb_softc *, struct wsdisplay_curpos *); 152 static void ims332_loadcmap(struct hwcmap256 *); 153 static void ims332_set_curpos(struct xcfb_softc *); 154 static void ims332_load_curcmap(struct xcfb_softc *); 155 static void ims332_load_curshape(struct xcfb_softc *); 156 static void ims332_write_reg(int, u_int32_t); 157 #if 0 158 static u_int32_t ims332_read_reg(int); 159 #endif 160 161 extern long ioasic_base; /* XXX */ 162 163 /* 164 * Compose 2 bit/pixel cursor image. 165 * M M M M I I I I M I M I M I M I 166 * [ before ] [ after ] 167 * 3 2 1 0 3 2 1 0 3 3 2 2 1 1 0 0 168 * 7 6 5 4 7 6 5 4 7 7 6 6 5 5 4 4 169 */ 170 static const u_int8_t shuffle[256] = { 171 0x00, 0x01, 0x04, 0x05, 0x10, 0x11, 0x14, 0x15, 172 0x40, 0x41, 0x44, 0x45, 0x50, 0x51, 0x54, 0x55, 173 0x02, 0x03, 0x06, 0x07, 0x12, 0x13, 0x16, 0x17, 174 0x42, 0x43, 0x46, 0x47, 0x52, 0x53, 0x56, 0x57, 175 0x08, 0x09, 0x0c, 0x0d, 0x18, 0x19, 0x1c, 0x1d, 176 0x48, 0x49, 0x4c, 0x4d, 0x58, 0x59, 0x5c, 0x5d, 177 0x0a, 0x0b, 0x0e, 0x0f, 0x1a, 0x1b, 0x1e, 0x1f, 178 0x4a, 0x4b, 0x4e, 0x4f, 0x5a, 0x5b, 0x5e, 0x5f, 179 0x20, 0x21, 0x24, 0x25, 0x30, 0x31, 0x34, 0x35, 180 0x60, 0x61, 0x64, 0x65, 0x70, 0x71, 0x74, 0x75, 181 0x22, 0x23, 0x26, 0x27, 0x32, 0x33, 0x36, 0x37, 182 0x62, 0x63, 0x66, 0x67, 0x72, 0x73, 0x76, 0x77, 183 0x28, 0x29, 0x2c, 0x2d, 0x38, 0x39, 0x3c, 0x3d, 184 0x68, 0x69, 0x6c, 0x6d, 0x78, 0x79, 0x7c, 0x7d, 185 0x2a, 0x2b, 0x2e, 0x2f, 0x3a, 0x3b, 0x3e, 0x3f, 186 0x6a, 0x6b, 0x6e, 0x6f, 0x7a, 0x7b, 0x7e, 0x7f, 187 0x80, 0x81, 0x84, 0x85, 0x90, 0x91, 0x94, 0x95, 188 0xc0, 0xc1, 0xc4, 0xc5, 0xd0, 0xd1, 0xd4, 0xd5, 189 0x82, 0x83, 0x86, 0x87, 0x92, 0x93, 0x96, 0x97, 190 0xc2, 0xc3, 0xc6, 0xc7, 0xd2, 0xd3, 0xd6, 0xd7, 191 0x88, 0x89, 0x8c, 0x8d, 0x98, 0x99, 0x9c, 0x9d, 192 0xc8, 0xc9, 0xcc, 0xcd, 0xd8, 0xd9, 0xdc, 0xdd, 193 0x8a, 0x8b, 0x8e, 0x8f, 0x9a, 0x9b, 0x9e, 0x9f, 194 0xca, 0xcb, 0xce, 0xcf, 0xda, 0xdb, 0xde, 0xdf, 195 0xa0, 0xa1, 0xa4, 0xa5, 0xb0, 0xb1, 0xb4, 0xb5, 196 0xe0, 0xe1, 0xe4, 0xe5, 0xf0, 0xf1, 0xf4, 0xf5, 197 0xa2, 0xa3, 0xa6, 0xa7, 0xb2, 0xb3, 0xb6, 0xb7, 198 0xe2, 0xe3, 0xe6, 0xe7, 0xf2, 0xf3, 0xf6, 0xf7, 199 0xa8, 0xa9, 0xac, 0xad, 0xb8, 0xb9, 0xbc, 0xbd, 200 0xe8, 0xe9, 0xec, 0xed, 0xf8, 0xf9, 0xfc, 0xfd, 201 0xaa, 0xab, 0xae, 0xaf, 0xba, 0xbb, 0xbe, 0xbf, 202 0xea, 0xeb, 0xee, 0xef, 0xfa, 0xfb, 0xfe, 0xff, 203 }; 204 205 static int 206 xcfbmatch(struct device *parent, struct cfdata *match, void *aux) 207 { 208 struct tc_attach_args *ta = aux; 209 210 if (strncmp("PMAG-DV ", ta->ta_modname, TC_ROM_LLEN) != 0) 211 return (0); 212 213 return (1); 214 } 215 216 static void 217 xcfbattach(struct device *parent, struct device *self, void *aux) 218 { 219 struct xcfb_softc *sc = device_private(self); 220 struct tc_attach_args *ta = aux; 221 struct rasops_info *ri; 222 struct wsemuldisplaydev_attach_args waa; 223 int console; 224 225 console = (ta->ta_addr == xcfb_consaddr); 226 if (console) { 227 sc->sc_ri = ri = &xcfb_console_ri; 228 sc->nscreens = 1; 229 } 230 else { 231 MALLOC(ri, struct rasops_info *, sizeof(struct rasops_info), 232 M_DEVBUF, M_NOWAIT); 233 if (ri == NULL) { 234 printf(": can't alloc memory\n"); 235 return; 236 } 237 memset(ri, 0, sizeof(struct rasops_info)); 238 239 ri->ri_hw = (void *)ioasic_base; 240 xcfb_common_init(ri); 241 sc->sc_ri = ri; 242 } 243 printf(": %dx%d, %dbpp\n", ri->ri_width, ri->ri_height, ri->ri_depth); 244 245 xcfb_cmap_init(sc); 246 247 sc->sc_vaddr = ta->ta_addr; 248 sc->sc_blanked = 0; 249 sc->sc_csr = IMS332_BPP_8 | IMS332_CSR_A_VTG_ENABLE; 250 251 tc_intr_establish(parent, ta->ta_cookie, IPL_TTY, xcfbintr, sc); 252 253 waa.console = console; 254 waa.scrdata = &xcfb_screenlist; 255 waa.accessops = &xcfb_accessops; 256 waa.accesscookie = sc; 257 258 config_found(self, &waa, wsemuldisplaydevprint); 259 } 260 261 static void 262 xcfb_cmap_init(struct xcfb_softc *sc) 263 { 264 struct hwcmap256 *cm; 265 const u_int8_t *p; 266 int index; 267 268 cm = &sc->sc_cmap; 269 p = rasops_cmap; 270 for (index = 0; index < CMAP_SIZE; index++, p += 3) { 271 cm->r[index] = p[0]; 272 cm->g[index] = p[1]; 273 cm->b[index] = p[2]; 274 } 275 } 276 277 static void 278 xcfb_common_init(struct rasops_info *ri) 279 { 280 int cookie; 281 282 /* initialize colormap and cursor hardware */ 283 xcfbhwinit((caddr_t)ri->ri_hw); 284 285 ri->ri_flg = RI_CENTER; 286 ri->ri_depth = 8; 287 ri->ri_width = 1024; 288 ri->ri_height = 768; 289 ri->ri_stride = 1024; 290 ri->ri_bits = (caddr_t)MIPS_PHYS_TO_KSEG1(XCFB_FB_BASE); 291 292 /* clear the screen */ 293 memset(ri->ri_bits, 0, ri->ri_stride * ri->ri_height); 294 295 wsfont_init(); 296 /* prefer 12 pixel wide font */ 297 cookie = wsfont_find(NULL, 12, 0, 0, WSDISPLAY_FONTORDER_L2R, 298 WSDISPLAY_FONTORDER_L2R); 299 if (cookie <= 0) 300 cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_L2R, 301 WSDISPLAY_FONTORDER_L2R); 302 if (cookie <= 0) { 303 printf("xcfb: font table is empty\n"); 304 return; 305 } 306 307 if (wsfont_lock(cookie, &ri->ri_font)) { 308 printf("xcfb: couldn't lock font\n"); 309 return; 310 } 311 ri->ri_wsfcookie = cookie; 312 313 rasops_init(ri, 34, 80); 314 315 /* XXX shouldn't be global */ 316 xcfb_stdscreen.nrows = ri->ri_rows; 317 xcfb_stdscreen.ncols = ri->ri_cols; 318 xcfb_stdscreen.textops = &ri->ri_ops; 319 xcfb_stdscreen.capabilities = ri->ri_caps; 320 } 321 322 int 323 xcfb_cnattach(void) 324 { 325 struct rasops_info *ri; 326 long defattr; 327 328 ri = &xcfb_console_ri; 329 ri->ri_hw = (void *)ioasic_base; 330 xcfb_common_init(ri); 331 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 332 wsdisplay_cnattach(&xcfb_stdscreen, ri, 0, 0, defattr); 333 xcfb_consaddr = MIPS_PHYS_TO_KSEG1(XINE_PHYS_CFB_START); 334 return (0); 335 } 336 337 static void 338 xcfbhwinit(caddr_t base) 339 { 340 volatile u_int32_t *csr; 341 u_int32_t i; 342 const u_int8_t *p; 343 344 csr = (volatile u_int32_t *)(base + IOASIC_CSR); 345 i = *csr; 346 i &= ~XINE_CSR_VDAC_ENABLE; 347 *csr = i; 348 DELAY(50); 349 i |= XINE_CSR_VDAC_ENABLE; 350 *csr = i; 351 DELAY(50); 352 ims332_write_reg(IMS332_REG_BOOT, 0x2c); 353 ims332_write_reg(IMS332_REG_CSR_A, 354 IMS332_BPP_8|IMS332_CSR_A_DISABLE_CURSOR); 355 ims332_write_reg(IMS332_REG_HALF_SYNCH, 0x10); 356 ims332_write_reg(IMS332_REG_BACK_PORCH, 0x21); 357 ims332_write_reg(IMS332_REG_DISPLAY, 0x100); 358 ims332_write_reg(IMS332_REG_SHORT_DIS, 0x5d); 359 ims332_write_reg(IMS332_REG_BROAD_PULSE, 0x9f); 360 ims332_write_reg(IMS332_REG_LINE_TIME, 0x146); 361 ims332_write_reg(IMS332_REG_V_SYNC, 0x0c); 362 ims332_write_reg(IMS332_REG_V_PRE_EQUALIZE, 0x02); 363 ims332_write_reg(IMS332_REG_V_POST_EQUALIZE, 0x02); 364 ims332_write_reg(IMS332_REG_V_BLANK, 0x2a); 365 ims332_write_reg(IMS332_REG_V_DISPLAY, 0x600); 366 ims332_write_reg(IMS332_REG_LINE_START, 0x10); 367 ims332_write_reg(IMS332_REG_MEM_INIT, 0x0a); 368 ims332_write_reg(IMS332_REG_COLOR_MASK, 0xffffff); 369 ims332_write_reg(IMS332_REG_CSR_A, 370 IMS332_BPP_8|IMS332_CSR_A_VTG_ENABLE); 371 372 /* build sane colormap */ 373 p = rasops_cmap; 374 for (i = 0; i < CMAP_SIZE; i++, p += 3) { 375 u_int32_t bgr; 376 377 bgr = p[2] << 16 | p[1] << 8 | p[0]; 378 ims332_write_reg(IMS332_REG_LUT_BASE + i, bgr); 379 } 380 381 /* clear out cursor image */ 382 for (i = 0; i < 512; i++) 383 ims332_write_reg(IMS332_REG_CURSOR_RAM + i, 0); 384 385 /* 386 * 2 bit/pixel cursor. Assign MSB for cursor mask and LSB for 387 * cursor image. LUT_1 for mask color, while LUT_2 for 388 * image color. LUT_0 will be never used. 389 */ 390 ims332_write_reg(IMS332_REG_CURSOR_LUT_0, 0); 391 ims332_write_reg(IMS332_REG_CURSOR_LUT_1, 0xffffff); 392 ims332_write_reg(IMS332_REG_CURSOR_LUT_2, 0xffffff); 393 } 394 395 static int 396 xcfbioctl(void *v, u_long cmd, caddr_t data, int flag, struct lwp *l) 397 { 398 struct xcfb_softc *sc = v; 399 struct rasops_info *ri = sc->sc_ri; 400 int turnoff, error; 401 402 switch (cmd) { 403 case WSDISPLAYIO_GTYPE: 404 *(u_int *)data = WSDISPLAY_TYPE_XCFB; 405 return (0); 406 407 case WSDISPLAYIO_GINFO: 408 #define wsd_fbip ((struct wsdisplay_fbinfo *)data) 409 wsd_fbip->height = ri->ri_height; 410 wsd_fbip->width = ri->ri_width; 411 wsd_fbip->depth = ri->ri_depth; 412 wsd_fbip->cmsize = CMAP_SIZE; 413 #undef fbt 414 return (0); 415 416 case WSDISPLAYIO_GETCMAP: 417 return get_cmap(sc, (struct wsdisplay_cmap *)data); 418 419 case WSDISPLAYIO_PUTCMAP: 420 error = set_cmap(sc, (struct wsdisplay_cmap *)data); 421 if (error == 0) 422 ims332_loadcmap(&sc->sc_cmap); 423 return (error); 424 425 case WSDISPLAYIO_SVIDEO: 426 turnoff = *(int *)data == WSDISPLAYIO_VIDEO_OFF; 427 if (sc->sc_blanked != turnoff) { 428 sc->sc_blanked = turnoff; 429 xcfb_screenblank(sc); 430 } 431 return (0); 432 433 case WSDISPLAYIO_GVIDEO: 434 *(u_int *)data = sc->sc_blanked ? 435 WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON; 436 return (0); 437 438 case WSDISPLAYIO_GCURPOS: 439 *(struct wsdisplay_curpos *)data = sc->sc_cursor.cc_pos; 440 return (0); 441 442 case WSDISPLAYIO_SCURPOS: 443 set_curpos(sc, (struct wsdisplay_curpos *)data); 444 ims332_set_curpos(sc); 445 return (0); 446 447 case WSDISPLAYIO_GCURMAX: 448 ((struct wsdisplay_curpos *)data)->x = 449 ((struct wsdisplay_curpos *)data)->y = CURSOR_MAX_SIZE; 450 return (0); 451 452 case WSDISPLAYIO_GCURSOR: 453 return get_cursor(sc, (struct wsdisplay_cursor *)data); 454 455 case WSDISPLAYIO_SCURSOR: 456 return set_cursor(sc, (struct wsdisplay_cursor *)data); 457 458 case WSDISPLAYIO_SMODE: 459 if (*(int *)data == WSDISPLAYIO_MODE_EMUL) { 460 sc->sc_csr |= IMS332_CSR_A_DISABLE_CURSOR; 461 ims332_write_reg(IMS332_REG_CSR_A, sc->sc_csr); 462 xcfb_cmap_init(sc); 463 ims332_loadcmap(&sc->sc_cmap); 464 sc->sc_blanked = 0; 465 xcfb_screenblank(sc); 466 } 467 return (0); 468 } 469 return (EPASSTHROUGH); 470 } 471 472 static paddr_t 473 xcfbmmap(void *v, off_t offset, int prot) 474 { 475 476 if (offset >= XCFB_FB_SIZE || offset < 0) 477 return (-1); 478 return mips_btop(MIPS_KSEG1_TO_PHYS(XCFB_FB_BASE + offset)); 479 } 480 481 static int 482 xcfb_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 483 int *curxp, int *curyp, long *attrp) 484 { 485 struct xcfb_softc *sc = v; 486 struct rasops_info *ri = sc->sc_ri; 487 long defattr; 488 489 if (sc->nscreens > 0) 490 return (ENOMEM); 491 492 *cookiep = ri; /* one and only for now */ 493 *curxp = 0; 494 *curyp = 0; 495 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 496 *attrp = defattr; 497 sc->nscreens++; 498 return (0); 499 } 500 501 static void 502 xcfb_free_screen(void *v, void *cookie) 503 { 504 struct xcfb_softc *sc = v; 505 506 if (sc->sc_ri == &xcfb_console_ri) 507 panic("xcfb_free_screen: console"); 508 509 sc->nscreens--; 510 } 511 512 static int 513 xcfb_show_screen(void *v, void *cookie, int waitok, 514 void (*cb)(void *, int, int), void *cbarg) 515 { 516 517 return (0); 518 } 519 520 static int 521 xcfbintr(void *v) 522 { 523 struct xcfb_softc *sc = v; 524 u_int32_t *intr, i; 525 526 intr = (u_int32_t *)((caddr_t)sc->sc_ri->ri_hw + IOASIC_INTR); 527 i = *intr; 528 i &= ~XINE_INTR_VINT; 529 *intr = i; 530 return (1); 531 } 532 533 static void 534 xcfb_screenblank(struct xcfb_softc *sc) 535 { 536 if (sc->sc_blanked) 537 sc->sc_csr |= IMS332_CSR_A_FORCE_BLANK; 538 else 539 sc->sc_csr &= ~IMS332_CSR_A_FORCE_BLANK; 540 ims332_write_reg(IMS332_REG_CSR_A, sc->sc_csr); 541 } 542 543 static int 544 get_cmap(struct xcfb_softc *sc, struct wsdisplay_cmap *p) 545 { 546 u_int index = p->index, count = p->count; 547 int error; 548 549 if (index >= CMAP_SIZE || count > CMAP_SIZE - index) 550 return (EINVAL); 551 552 error = copyout(&sc->sc_cmap.r[index], p->red, count); 553 if (error) 554 return error; 555 error = copyout(&sc->sc_cmap.g[index], p->green, count); 556 if (error) 557 return error; 558 error = copyout(&sc->sc_cmap.b[index], p->blue, count); 559 return error; 560 } 561 562 static int 563 set_cmap(struct xcfb_softc *sc, struct wsdisplay_cmap *p) 564 { 565 struct hwcmap256 cmap; 566 u_int index = p->index, count = p->count; 567 int error; 568 569 if (index >= CMAP_SIZE || count > CMAP_SIZE - index) 570 return (EINVAL); 571 572 error = copyin(p->red, &cmap.r[index], count); 573 if (error) 574 return error; 575 error = copyin(p->green, &cmap.g[index], count); 576 if (error) 577 return error; 578 error = copyin(p->blue, &cmap.b[index], count); 579 if (error) 580 return error; 581 memcpy(&sc->sc_cmap.r[index], &cmap.r[index], count); 582 memcpy(&sc->sc_cmap.g[index], &cmap.g[index], count); 583 memcpy(&sc->sc_cmap.b[index], &cmap.b[index], count); 584 return (0); 585 } 586 587 static int 588 set_cursor(struct xcfb_softc *sc, struct wsdisplay_cursor *p) 589 { 590 #define cc (&sc->sc_cursor) 591 u_int v, index = 0, count = 0, icount = 0; 592 uint8_t r[2], g[2], b[2], image[512], mask[512]; 593 int error; 594 595 v = p->which; 596 if (v & WSDISPLAY_CURSOR_DOCMAP) { 597 index = p->cmap.index; 598 count = p->cmap.count; 599 600 if (index >= 2 || index + count > 2) 601 return (EINVAL); 602 error = copyin(p->cmap.red, &r[index], count); 603 if (error) 604 return error; 605 error = copyin(p->cmap.green, &g[index], count); 606 if (error) 607 return error; 608 error = copyin(p->cmap.blue, &b[index], count); 609 if (error) 610 return error; 611 } 612 if (v & WSDISPLAY_CURSOR_DOSHAPE) { 613 if (p->size.x > CURSOR_MAX_SIZE || p->size.y > CURSOR_MAX_SIZE) 614 return (EINVAL); 615 icount = ((p->size.x < 33) ? 4 : 8) * p->size.y; 616 error = copyin(p->image, image, icount); 617 if (error) 618 return error; 619 error = copyin(p->mask, mask, icount); 620 if (error) 621 return error; 622 } 623 624 if (v & WSDISPLAY_CURSOR_DOCMAP) { 625 memcpy(&cc->cc_color[index], &r[index], count); 626 memcpy(&cc->cc_color[index + 2], &g[index], count); 627 memcpy(&cc->cc_color[index + 4], &b[index], count); 628 ims332_load_curcmap(sc); 629 } 630 if (v & WSDISPLAY_CURSOR_DOSHAPE) { 631 cc->cc_size = p->size; 632 memset(cc->cc_image, 0, sizeof cc->cc_image); 633 memcpy(cc->cc_image, image, icount); 634 memset(cc->cc_mask, 0, sizeof cc->cc_mask); 635 memcpy(cc->cc_mask, mask, icount); 636 ims332_load_curshape(sc); 637 } 638 if (v & WSDISPLAY_CURSOR_DOCUR) { 639 cc->cc_hot = p->hot; 640 if (p->enable) 641 sc->sc_csr &= ~IMS332_CSR_A_DISABLE_CURSOR; 642 else 643 sc->sc_csr |= IMS332_CSR_A_DISABLE_CURSOR; 644 ims332_write_reg(IMS332_REG_CSR_A, sc->sc_csr); 645 } 646 if (v & WSDISPLAY_CURSOR_DOPOS) { 647 set_curpos(sc, &p->pos); 648 ims332_set_curpos(sc); 649 } 650 651 return (0); 652 #undef cc 653 } 654 655 static int 656 get_cursor(struct xcfb_softc *sc, struct wsdisplay_cursor *p) 657 { 658 return (EPASSTHROUGH); /* XXX */ 659 } 660 661 static void 662 set_curpos(struct xcfb_softc *sc, struct wsdisplay_curpos *curpos) 663 { 664 struct rasops_info *ri = sc->sc_ri; 665 int x = curpos->x, y = curpos->y; 666 667 if (y < 0) 668 y = 0; 669 else if (y > ri->ri_height) 670 y = ri->ri_height; 671 if (x < 0) 672 x = 0; 673 else if (x > ri->ri_width) 674 x = ri->ri_width; 675 sc->sc_cursor.cc_pos.x = x; 676 sc->sc_cursor.cc_pos.y = y; 677 } 678 679 static void 680 ims332_loadcmap(struct hwcmap256 *cm) 681 { 682 int i; 683 u_int32_t rgb; 684 685 for (i = 0; i < CMAP_SIZE; i++) { 686 rgb = cm->b[i] << 16 | cm->g[i] << 8 | cm->r[i]; 687 ims332_write_reg(IMS332_REG_LUT_BASE + i, rgb); 688 } 689 } 690 691 static void 692 ims332_set_curpos(struct xcfb_softc *sc) 693 { 694 struct wsdisplay_curpos *curpos = &sc->sc_cursor.cc_pos; 695 u_int32_t pos; 696 int s; 697 698 s = spltty(); 699 pos = (curpos->x & 0xfff) << 12 | (curpos->y & 0xfff); 700 ims332_write_reg(IMS332_REG_CURSOR_LOC, pos); 701 splx(s); 702 } 703 704 static void 705 ims332_load_curcmap(struct xcfb_softc *sc) 706 { 707 u_int8_t *cp = sc->sc_cursor.cc_color; 708 u_int32_t rgb; 709 710 /* cursor background */ 711 rgb = cp[5] << 16 | cp[3] << 8 | cp[1]; 712 ims332_write_reg(IMS332_REG_CURSOR_LUT_1, rgb); 713 714 /* cursor foreground */ 715 rgb = cp[4] << 16 | cp[2] << 8 | cp[0]; 716 ims332_write_reg(IMS332_REG_CURSOR_LUT_2, rgb); 717 } 718 719 static void 720 ims332_load_curshape(struct xcfb_softc *sc) 721 { 722 u_int i, img, msk, bits; 723 u_int8_t u, *ip, *mp; 724 725 ip = (u_int8_t *)sc->sc_cursor.cc_image; 726 mp = (u_int8_t *)sc->sc_cursor.cc_mask; 727 728 i = 0; 729 /* 64 pixel scan line is consisted with 8 halfword cursor ram */ 730 while (i < sc->sc_cursor.cc_size.y * 8) { 731 /* pad right half 32 pixel when smaller than 33 */ 732 if ((i & 0x4) && sc->sc_cursor.cc_size.x < 33) 733 bits = 0; 734 else { 735 img = *ip++; 736 msk = *mp++; 737 img &= msk; /* cookie off image */ 738 u = (msk & 0x0f) << 4 | (img & 0x0f); 739 bits = shuffle[u]; 740 u = (msk & 0xf0) | (img & 0xf0) >> 4; 741 bits = (shuffle[u] << 8) | bits; 742 } 743 ims332_write_reg(IMS332_REG_CURSOR_RAM + i, bits); 744 i += 1; 745 } 746 /* pad unoccupied scan lines */ 747 while (i < CURSOR_MAX_SIZE * 8) { 748 ims332_write_reg(IMS332_REG_CURSOR_RAM + i, 0); 749 i += 1; 750 } 751 } 752 753 static void 754 ims332_write_reg(int regno, u_int32_t val) 755 { 756 caddr_t high8 = (caddr_t)(ioasic_base + IMS332_HIGH); 757 caddr_t low16 = (caddr_t)(ioasic_base + IMS332_WLOW) + (regno << 4); 758 759 *(volatile u_int16_t *)high8 = (val & 0xff0000) >> 8; 760 *(volatile u_int16_t *)low16 = val; 761 } 762 763 #if 0 764 static u_int32_t 765 ims332_read_reg(int regno) 766 { 767 caddr_t high8 = (caddr_t)(ioasic_base + IMS332_HIGH); 768 caddr_t low16 = (caddr_t)(ioasic_base + IMS332_RLOW) + (regno << 4); 769 u_int v0, v1; 770 771 v1 = *(volatile u_int16_t *)high8; 772 v0 = *(volatile u_int16_t *)low16; 773 return (v1 & 0xff00) << 8 | v0; 774 } 775 #endif 776
Indexes created Tue Sep 23 14:10:03 GMT 2025