fb_sbdio.c revision 1.8
1 /* $NetBSD: fb_sbdio.c,v 1.8 2009/11/07 07:27:43 cegger Exp $ */ 2 3 /*- 4 * Copyright (c) 2004, 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 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 #define WIRED_FB_TLB 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: fb_sbdio.c,v 1.8 2009/11/07 07:27:43 cegger Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/malloc.h> 40 #include <dev/cons.h> 41 42 #include <uvm/uvm_extern.h> /* pmap function to remap FB */ 43 44 #include <dev/wscons/wsconsio.h> 45 #include <dev/wscons/wsdisplayvar.h> 46 #include <dev/wsfont/wsfont.h> 47 #include <dev/rasops/rasops.h> 48 49 #include <mips/pte.h> 50 51 #include <machine/locore.h> 52 #include <machine/sbdiovar.h> 53 54 #include <machine/gareg.h> 55 #include <machine/gavar.h> 56 57 #include <machine/vmparam.h> 58 #include <machine/wired_map.h> 59 60 61 struct fb_softc { 62 device_t sc_dev; 63 struct rasops_info *sc_ri; 64 struct ga *sc_ga; 65 int sc_nscreens; 66 }; 67 68 int fb_sbdio_match(device_t, cfdata_t, void *); 69 void fb_sbdio_attach(device_t, device_t, void *); 70 71 CFATTACH_DECL_NEW(fb_sbdio, sizeof(struct fb_softc), 72 fb_sbdio_match, fb_sbdio_attach, NULL, NULL); 73 74 int _fb_ioctl(void *, void *, u_long, void *, int, struct lwp *); 75 paddr_t _fb_mmap(void *, void *, off_t, int); 76 int _fb_alloc_screen(void *, const struct wsscreen_descr *, void **, 77 int *, int *, long *); 78 void _fb_free_screen(void *, void *); 79 int _fb_show_screen(void *, void *, int, void (*)(void *, int, int), void *); 80 void _fb_pollc(void *, int); 81 void fb_common_init(struct rasops_info *, struct ga *); 82 int fb_sbdio_cnattach(uint32_t, uint32_t, int); 83 void fb_pmap_enter(paddr_t, paddr_t, vaddr_t *, vaddr_t *); 84 85 struct wsscreen_descr _fb_std_screen = { 86 "std", 0, 0, 87 0, /* textops */ 88 0, 0, 89 0 90 }; 91 92 const struct wsscreen_descr *_fb_screen_table[] = { 93 &_fb_std_screen, 94 }; 95 96 struct wsscreen_list _fb_screen_list = { 97 .nscreens = 98 sizeof(_fb_screen_table) / sizeof(_fb_screen_table[0]), 99 .screens = _fb_screen_table 100 }; 101 102 struct wsdisplay_accessops _fb_accessops = { 103 .ioctl = _fb_ioctl, 104 .mmap = _fb_mmap, 105 .alloc_screen = _fb_alloc_screen, 106 .free_screen = _fb_free_screen, 107 .show_screen = _fb_show_screen, 108 .load_font = 0, 109 .pollc = _fb_pollc 110 }; 111 112 /* console stuff */ 113 static struct rasops_info fb_console_ri; 114 static struct ga fb_console_ga; 115 static paddr_t fb_consaddr; 116 117 118 int 119 fb_sbdio_match(device_t parent, cfdata_t cf, void *aux) 120 { 121 struct sbdio_attach_args *sa = aux; 122 123 return strcmp(sa->sa_name, "fb") ? 0 : 1; 124 } 125 126 void 127 fb_sbdio_attach(device_t parent, device_t self, void *aux) 128 { 129 struct fb_softc *sc = device_private(self); 130 struct sbdio_attach_args *sa = aux; 131 struct wsemuldisplaydev_attach_args wa; 132 struct rasops_info *ri; 133 struct ga *ga; 134 vaddr_t memva, regva; 135 int console; 136 137 sc->sc_dev = self; 138 aprint_normal("\n"); 139 140 console = (sa->sa_addr1 == fb_consaddr); 141 if (console) { 142 /* already initialized in fb_cnattach() */ 143 sc->sc_ri = ri = &fb_console_ri; 144 sc->sc_ga = &fb_console_ga; 145 sc->sc_nscreens = 1; 146 } else { 147 ri = malloc(sizeof(struct rasops_info), M_DEVBUF, 148 M_NOWAIT | M_ZERO); 149 if (ri == NULL) { 150 printf(":can't allocate rasops memory\n"); 151 return; 152 } 153 ga = malloc(sizeof(struct ga), M_DEVBUF, M_NOWAIT | M_ZERO); 154 if (ga == NULL) { 155 printf(":can't allocate ga memory\n"); 156 return; 157 } 158 ga->reg_paddr = sa->sa_addr2; 159 ga->flags = sa->sa_flags; 160 fb_pmap_enter(sa->sa_addr1, sa->sa_addr2, 161 &memva, ®va); 162 ri->ri_bits = (void *)memva; 163 ga->reg_addr = regva; 164 fb_common_init(ri, ga); 165 sc->sc_ri = ri; 166 sc->sc_ga = ga; 167 } 168 169 wa.console = console; 170 wa.scrdata = &_fb_screen_list; 171 wa.accessops = &_fb_accessops; 172 wa.accesscookie = (void *)sc; 173 174 config_found(self, &wa, wsdisplaydevprint); 175 } 176 177 void 178 fb_common_init(struct rasops_info *ri, struct ga *ga) 179 { 180 int ga_active, cookie; 181 182 /* XXX */ 183 ga_active = 0; 184 if (ga->flags == 0x0000 || ga->flags == 0x0001) 185 ga_active = ga_init(ga); 186 187 /* 188 * TR2 IPL CLUT. 189 * 0 black 190 * 1 red 191 * 2 green 192 * 4 blue 193 * 8 yellow 194 * 16 cyan 195 * 32 magenta 196 * 64 light gray 197 * 128 dark gray 198 * 255 white 199 * other black 200 * When CLUT isn't initialized for NetBSD, use black-red pair. 201 */ 202 ri->ri_flg = RI_CENTER | RI_CLEAR; 203 if (!ga_active) 204 ri->ri_flg |= RI_FORCEMONO; 205 206 ri->ri_depth = 8; 207 ri->ri_width = 1280; 208 ri->ri_height = 1024; 209 ri->ri_stride = 2048; 210 ri->ri_hw = (void *)ga; 211 212 wsfont_init(); 213 /* prefer 12 pixel wide font */ 214 cookie = wsfont_find(NULL, 12, 0, 0, 0, 0); 215 if (cookie <= 0) 216 cookie = wsfont_find(NULL, 0, 0, 0, 0, 0); 217 if (cookie <= 0) { 218 printf("sfb: font table is empty\n"); 219 return; 220 } 221 222 if (wsfont_lock(cookie, &ri->ri_font)) { 223 printf("fb: can't lock font\n"); 224 return; 225 } 226 ri->ri_wsfcookie = cookie; 227 228 rasops_init(ri, 34, 80); 229 230 #if 0 231 /* XXX no accelarated functions yet */ 232 ri->ri_ops.putchar = xxx_putchar; 233 ri->ri_ops.erasecols = xxx_erasecols; 234 ri->ri_ops.copyrows = xxx_copyrows; 235 ri->ri_ops.eraserows = xxx_eraserows; 236 ir->ri_do_cursor = xxx_do_cursor; 237 #endif 238 239 /* XXX shouldn't be global */ 240 _fb_std_screen.nrows = ri->ri_rows; 241 _fb_std_screen.ncols = ri->ri_cols; 242 _fb_std_screen.textops = &ri->ri_ops; 243 _fb_std_screen.capabilities = ri->ri_caps; 244 } 245 246 int 247 fb_sbdio_cnattach(uint32_t mem, uint32_t reg, int flags) 248 { 249 struct rasops_info *ri; 250 struct ga *ga; 251 vaddr_t memva, regva; 252 long defattr; 253 254 ri = &fb_console_ri; 255 ga = &fb_console_ga; 256 257 ga->reg_paddr = reg; 258 ga->flags = flags; 259 fb_pmap_enter((paddr_t)mem, (paddr_t)reg, &memva, ®va); 260 ri->ri_bits = (void *)memva; 261 ga->reg_addr = regva; 262 263 fb_common_init(ri, ga); 264 265 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 266 wsdisplay_cnattach(&_fb_std_screen, ri, 0, 0, defattr); 267 fb_consaddr = mem; 268 269 return 0; 270 } 271 272 int 273 _fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l) 274 { 275 struct fb_softc *sc = v; 276 struct wsdisplay_fbinfo *fbinfo = (void *)data; 277 struct wsdisplay_cmap *cmap = (void *)data; 278 struct rasops_info *ri = sc->sc_ri; 279 struct ga *ga = sc->sc_ga; 280 int i; 281 282 switch (cmd) { 283 case WSDISPLAYIO_GTYPE: 284 *(uint32_t *)data = WSDISPLAY_TYPE_UNKNOWN; 285 return 0; 286 287 case WSDISPLAYIO_GINFO: 288 fbinfo->height = ri->ri_height; 289 fbinfo->width = ri->ri_width; 290 fbinfo->depth = ri->ri_depth; 291 fbinfo->cmsize = 256; 292 return 0; 293 294 #if 1 295 case WSDISPLAYIO_LINEBYTES: 296 *(u_int *)data = ri->ri_stride; 297 return 0; 298 299 #endif 300 case WSDISPLAYIO_GETCMAP: 301 if (ri->ri_flg == RI_FORCEMONO) 302 break; 303 ga_clut_get(ga); 304 for (i = 0; i < cmap->count; i++) { 305 cmap->red[i] = ga->clut[cmap->index + i][0]; 306 cmap->green[i] = ga->clut[cmap->index + i][1]; 307 cmap->blue[i] = ga->clut[cmap->index + i][2]; 308 } 309 return 0; 310 311 case WSDISPLAYIO_PUTCMAP: 312 if (ri->ri_flg == RI_FORCEMONO) 313 break; 314 for (i = 0; i < cmap->count; i++) { 315 ga->clut[cmap->index + i][0] = cmap->red[i]; 316 ga->clut[cmap->index + i][1] = cmap->green[i]; 317 ga->clut[cmap->index + i][2] = cmap->blue[i]; 318 } 319 ga_clut_set(ga); 320 return 0; 321 } 322 323 return EPASSTHROUGH; 324 } 325 326 paddr_t 327 _fb_mmap(void *v, void *vs, off_t offset, int prot) 328 { 329 330 if (offset < 0 || offset >= GA_FRB_SIZE) 331 return -1; 332 333 return mips_btop(GA_FRB_ADDR + offset); 334 } 335 336 int 337 _fb_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookie, 338 int *curx, int *cury, long *attr) 339 { 340 struct fb_softc *sc = v; 341 struct rasops_info *ri = sc->sc_ri; 342 long defattr; 343 344 #if 0 345 if (sc->sc_nscreens > 0) 346 return ENOMEM; 347 #endif 348 349 *cookie = ri; 350 *curx = *cury = 0; 351 ri->ri_ops.allocattr(ri, 0, 0, 0, &defattr); 352 *attr = defattr; 353 sc->sc_nscreens++; 354 355 return 0; 356 } 357 358 void 359 _fb_free_screen(void *v, void *cookie) 360 { 361 struct fb_softc *sc = v; 362 363 sc->sc_nscreens--; 364 } 365 366 int 367 _fb_show_screen(void *v, void *cookie, int waitok, 368 void (*cb)(void *, int, int), void *cbarg) 369 { 370 371 return 0; 372 } 373 374 void 375 _fb_pollc(void *v, int on) 376 { 377 378 /* no interrupt used. */ 379 } 380 381 void 382 fb_pmap_enter(paddr_t fb_paddr, paddr_t reg_paddr, 383 vaddr_t *fb_vaddr, vaddr_t *reg_vaddr) 384 { 385 #ifdef WIRED_FB_TLB /* Make wired 16MPage for frame buffer */ 386 vaddr_t va; 387 vsize_t fb_off, reg_off, pgsize; 388 389 pgsize = MIPS3_WIRED_SIZE; 390 fb_off = fb_paddr & MIPS3_WIRED_OFFMASK; 391 reg_off = reg_paddr & MIPS3_WIRED_OFFMASK; 392 fb_paddr = fb_paddr & ~MIPS3_WIRED_OFFMASK; 393 reg_paddr = reg_paddr & ~MIPS3_WIRED_OFFMASK; 394 va = GA_FRB_ADDR; 395 396 if (mips3_wired_enter_page(va, fb_paddr, pgsize) == false) { 397 printf("cannot allocate fb memory\n"); 398 return; 399 } 400 401 if (mips3_wired_enter_page(va + pgsize, reg_paddr, pgsize) == false) { 402 printf("cannot allocate fb register\n"); 403 return; 404 } 405 406 *fb_vaddr = va + fb_off; 407 *reg_vaddr = va + pgsize + reg_off; 408 #else /* WIRED_FB_TLB */ 409 paddr_t pa, epa; 410 vaddr_t va, tva; 411 412 pa = addr; 413 epa = pa + size; 414 415 va = uvm_km_alloc(kernel_map, epa - pa, 0, UVM_KMF_VAONLY); 416 if (va == 0) 417 for (;;) 418 ROM_MONITOR(); 419 420 for (tva = va; pa < epa; pa += PAGE_SIZE, tva += PAGE_SIZE) 421 pmap_kenter_pa(tva, pa, VM_PROT_READ | VM_PROT_WRITE, 0); 422 423 pmap_update(pmap_kernel()); 424 425 *fb_vaddr = va; 426 #endif /* WIRED_FB_TLB */ 427 } 428
Indexes created Thu Oct 02 07:10:07 GMT 2025