fb_sbdio.c revision 1.11
1 /* $NetBSD: fb_sbdio.c,v 1.11 2010/05/15 16:35:37 tsutsui 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 1.11 2010/05/15 16:35:37 tsutsui 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 ri->ri_flg &= ~RI_NO_AUTO; 145 sc->sc_ga = &fb_console_ga; 146 sc->sc_nscreens = 1; 147 } else { 148 ri = malloc(sizeof(struct rasops_info), M_DEVBUF, 149 M_NOWAIT | M_ZERO); 150 if (ri == NULL) { 151 printf(":can't allocate rasops memory\n"); 152 return; 153 } 154 ga = malloc(sizeof(struct ga), M_DEVBUF, M_NOWAIT | M_ZERO); 155 if (ga == NULL) { 156 printf(":can't allocate ga memory\n"); 157 return; 158 } 159 ga->reg_paddr = sa->sa_addr2; 160 ga->flags = sa->sa_flags; 161 fb_pmap_enter(sa->sa_addr1, sa->sa_addr2, 162 &memva, ®va); 163 ri->ri_bits = (void *)memva; 164 ga->reg_addr = regva; 165 fb_common_init(ri, ga); 166 sc->sc_ri = ri; 167 sc->sc_ga = ga; 168 } 169 170 wa.console = console; 171 wa.scrdata = &_fb_screen_list; 172 wa.accessops = &_fb_accessops; 173 wa.accesscookie = (void *)sc; 174 175 config_found(self, &wa, wsdisplaydevprint); 176 } 177 178 void 179 fb_common_init(struct rasops_info *ri, struct ga *ga) 180 { 181 int ga_active, cookie; 182 183 /* XXX */ 184 ga_active = 0; 185 if (ga->flags == 0x0000 || ga->flags == 0x0001) 186 ga_active = ga_init(ga); 187 188 /* 189 * TR2 IPL CLUT. 190 * 0 black 191 * 1 red 192 * 2 green 193 * 4 blue 194 * 8 yellow 195 * 16 cyan 196 * 32 magenta 197 * 64 light gray 198 * 128 dark gray 199 * 255 white 200 * other black 201 * When CLUT isn't initialized for NetBSD, use black-red pair. 202 */ 203 ri->ri_flg = RI_CENTER | RI_CLEAR; 204 if (!ga_active) 205 ri->ri_flg |= RI_FORCEMONO; 206 if (ri == &fb_console_ri) 207 ri->ri_flg |= RI_NO_AUTO; 208 209 ri->ri_depth = 8; 210 ri->ri_width = 1280; 211 ri->ri_height = 1024; 212 ri->ri_stride = 2048; 213 ri->ri_hw = (void *)ga; 214 215 wsfont_init(); 216 /* prefer 12 pixel wide font */ 217 cookie = wsfont_find(NULL, 12, 0, 0, 0, 0); 218 if (cookie <= 0) 219 cookie = wsfont_find(NULL, 0, 0, 0, 0, 0); 220 if (cookie <= 0) { 221 printf("sfb: font table is empty\n"); 222 return; 223 } 224 225 if (wsfont_lock(cookie, &ri->ri_font)) { 226 printf("fb: can't lock font\n"); 227 return; 228 } 229 ri->ri_wsfcookie = cookie; 230 231 rasops_init(ri, 34, 80); 232 233 #if 0 234 /* XXX no accelarated functions yet */ 235 ri->ri_ops.putchar = xxx_putchar; 236 ri->ri_ops.erasecols = xxx_erasecols; 237 ri->ri_ops.copyrows = xxx_copyrows; 238 ri->ri_ops.eraserows = xxx_eraserows; 239 ir->ri_do_cursor = xxx_do_cursor; 240 #endif 241 242 /* XXX shouldn't be global */ 243 _fb_std_screen.nrows = ri->ri_rows; 244 _fb_std_screen.ncols = ri->ri_cols; 245 _fb_std_screen.textops = &ri->ri_ops; 246 _fb_std_screen.capabilities = ri->ri_caps; 247 } 248 249 int 250 fb_sbdio_cnattach(uint32_t mem, uint32_t reg, int flags) 251 { 252 struct rasops_info *ri; 253 struct ga *ga; 254 vaddr_t memva, regva; 255 long defattr; 256 257 ri = &fb_console_ri; 258 ga = &fb_console_ga; 259 260 ga->reg_paddr = reg; 261 ga->flags = flags; 262 fb_pmap_enter((paddr_t)mem, (paddr_t)reg, &memva, ®va); 263 ri->ri_bits = (void *)memva; 264 ga->reg_addr = regva; 265 266 fb_common_init(ri, ga); 267 268 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 269 wsdisplay_cnattach(&_fb_std_screen, ri, 0, 0, defattr); 270 fb_consaddr = mem; 271 272 return 0; 273 } 274 275 int 276 _fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l) 277 { 278 struct fb_softc *sc = v; 279 struct wsdisplay_fbinfo *fbinfo = (void *)data; 280 struct wsdisplay_cmap *cmap = (void *)data; 281 struct rasops_info *ri = sc->sc_ri; 282 struct ga *ga = sc->sc_ga; 283 int i; 284 285 switch (cmd) { 286 case WSDISPLAYIO_GTYPE: 287 *(uint32_t *)data = WSDISPLAY_TYPE_UNKNOWN; 288 return 0; 289 290 case WSDISPLAYIO_GINFO: 291 fbinfo->height = ri->ri_height; 292 fbinfo->width = ri->ri_width; 293 fbinfo->depth = ri->ri_depth; 294 fbinfo->cmsize = 256; 295 return 0; 296 297 #if 1 298 case WSDISPLAYIO_LINEBYTES: 299 *(u_int *)data = ri->ri_stride; 300 return 0; 301 302 #endif 303 case WSDISPLAYIO_GETCMAP: 304 if (ri->ri_flg == RI_FORCEMONO) 305 break; 306 ga_clut_get(ga); 307 for (i = 0; i < cmap->count; i++) { 308 cmap->red[i] = ga->clut[cmap->index + i][0]; 309 cmap->green[i] = ga->clut[cmap->index + i][1]; 310 cmap->blue[i] = ga->clut[cmap->index + i][2]; 311 } 312 return 0; 313 314 case WSDISPLAYIO_PUTCMAP: 315 if (ri->ri_flg == RI_FORCEMONO) 316 break; 317 for (i = 0; i < cmap->count; i++) { 318 ga->clut[cmap->index + i][0] = cmap->red[i]; 319 ga->clut[cmap->index + i][1] = cmap->green[i]; 320 ga->clut[cmap->index + i][2] = cmap->blue[i]; 321 } 322 ga_clut_set(ga); 323 return 0; 324 } 325 326 return EPASSTHROUGH; 327 } 328 329 paddr_t 330 _fb_mmap(void *v, void *vs, off_t offset, int prot) 331 { 332 333 if (offset < 0 || offset >= GA_FRB_SIZE) 334 return -1; 335 336 return mips_btop(GA_FRB_ADDR + offset); 337 } 338 339 int 340 _fb_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookie, 341 int *curx, int *cury, long *attr) 342 { 343 struct fb_softc *sc = v; 344 struct rasops_info *ri = sc->sc_ri; 345 long defattr; 346 347 #if 0 348 if (sc->sc_nscreens > 0) 349 return ENOMEM; 350 #endif 351 352 *cookie = ri; 353 *curx = *cury = 0; 354 ri->ri_ops.allocattr(ri, 0, 0, 0, &defattr); 355 *attr = defattr; 356 sc->sc_nscreens++; 357 358 return 0; 359 } 360 361 void 362 _fb_free_screen(void *v, void *cookie) 363 { 364 struct fb_softc *sc = v; 365 366 sc->sc_nscreens--; 367 } 368 369 int 370 _fb_show_screen(void *v, void *cookie, int waitok, 371 void (*cb)(void *, int, int), void *cbarg) 372 { 373 374 return 0; 375 } 376 377 void 378 _fb_pollc(void *v, int on) 379 { 380 381 /* no interrupt used. */ 382 } 383 384 void 385 fb_pmap_enter(paddr_t fb_paddr, paddr_t reg_paddr, 386 vaddr_t *fb_vaddr, vaddr_t *reg_vaddr) 387 { 388 #ifdef WIRED_FB_TLB /* Make wired 16MPage for frame buffer */ 389 vaddr_t va; 390 vsize_t fb_off, reg_off, pgsize; 391 392 pgsize = MIPS3_WIRED_SIZE; 393 fb_off = fb_paddr & MIPS3_WIRED_OFFMASK; 394 reg_off = reg_paddr & MIPS3_WIRED_OFFMASK; 395 fb_paddr = fb_paddr & ~MIPS3_WIRED_OFFMASK; 396 reg_paddr = reg_paddr & ~MIPS3_WIRED_OFFMASK; 397 va = GA_FRB_ADDR; 398 399 if (mips3_wired_enter_page(va, fb_paddr, pgsize) == false) { 400 printf("cannot allocate fb memory\n"); 401 return; 402 } 403 404 if (mips3_wired_enter_page(va + pgsize, reg_paddr, pgsize) == false) { 405 printf("cannot allocate fb register\n"); 406 return; 407 } 408 409 *fb_vaddr = va + fb_off; 410 *reg_vaddr = va + pgsize + reg_off; 411 #else /* WIRED_FB_TLB */ 412 paddr_t pa, epa; 413 vaddr_t va, tva; 414 415 pa = addr; 416 epa = pa + size; 417 418 va = uvm_km_alloc(kernel_map, epa - pa, 0, UVM_KMF_VAONLY); 419 if (va == 0) 420 for (;;) 421 ROM_MONITOR(); 422 423 for (tva = va; pa < epa; pa += PAGE_SIZE, tva += PAGE_SIZE) 424 pmap_kenter_pa(tva, pa, VM_PROT_READ | VM_PROT_WRITE, 0); 425 426 pmap_update(pmap_kernel()); 427 428 *fb_vaddr = va; 429 #endif /* WIRED_FB_TLB */ 430 } 431
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