1 /* $NetBSD: gten.c,v 1.18 2008/12/17 20:51:32 cegger Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas <matt@3am-software.com> 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 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: gten.c,v 1.18 2008/12/17 20:51:32 cegger Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/buf.h> 37 #include <sys/conf.h> 38 #include <sys/device.h> 39 #include <sys/ioctl.h> 40 #include <sys/kernel.h> 41 #include <sys/malloc.h> 42 #include <sys/systm.h> 43 44 #include <uvm/uvm_extern.h> 45 46 #include <dev/pci/pcidevs.h> 47 #include <dev/pci/pcireg.h> 48 #include <dev/pci/pcivar.h> 49 50 #include <dev/wscons/wsconsio.h> 51 #include <dev/wscons/wsdisplayvar.h> 52 #include <dev/rasops/rasops.h> 53 54 #include <machine/bus.h> 55 #include <machine/gtenvar.h> 56 57 static int gten_match(struct device *, struct cfdata *, void *); 58 static void gten_attach(struct device *, struct device *, void *); 59 static int gten_print(void *, const char *); 60 61 CFATTACH_DECL(gten, sizeof(struct gten_softc), 62 gten_match, gten_attach, NULL, NULL); 63 64 static struct rasops_info gten_console_ri; 65 static pcitag_t gten_console_pcitag; 66 67 static struct wsscreen_descr gten_stdscreen = { 68 "std", 69 0, 0, 70 0, 71 0, 0, 72 WSSCREEN_REVERSE 73 }; 74 75 static const struct wsscreen_descr *_gten_scrlist[] = { 76 >en_stdscreen, 77 /* XXX other formats, graphics screen? */ 78 }; 79 80 static struct wsscreen_list gten_screenlist = { 81 sizeof(_gten_scrlist) / sizeof(struct wsscreen_descr *), _gten_scrlist 82 }; 83 84 static int gten_ioctl(void *, void *, u_long, void *, int, struct proc *); 85 static paddr_t gten_mmap(void *, void *, off_t, int); 86 static int gten_alloc_screen(void *, const struct wsscreen_descr *, 87 void **, int *, int *, long *); 88 static void gten_free_screen(void *, void *); 89 static int gten_show_screen(void *, void *, int, 90 void (*) (void *, int, int), void *); 91 92 static struct wsdisplay_accessops gten_accessops = { 93 gten_ioctl, 94 gten_mmap, 95 gten_alloc_screen, 96 gten_free_screen, 97 gten_show_screen, 98 0 /* load_font */ 99 }; 100 101 static void gten_common_init(struct rasops_info *); 102 static int gten_getcmap(struct gten_softc *, struct wsdisplay_cmap *); 103 static int gten_putcmap(struct gten_softc *, struct wsdisplay_cmap *); 104 105 #define GTEN_VRAM_OFFSET 0xf00000 106 107 static int 108 gten_match(struct device *parent, struct cfdata *match, void *aux) 109 { 110 struct pci_attach_args *pa = aux; 111 112 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WD && 113 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_WD_90C) 114 return 2; 115 116 return 0; 117 } 118 119 static void 120 gten_attach(struct device *parent, struct device *self, void *aux) 121 { 122 struct gten_softc *gt = (struct gten_softc *)self; 123 struct pci_attach_args *pa = aux; 124 struct wsemuldisplaydev_attach_args a; 125 int console = (pa->pa_tag == gten_console_pcitag); 126 int error; 127 char devinfo[256], pbuf[10]; 128 129 error = pci_mapreg_info(pa->pa_pc, pa->pa_tag, 0x14, 130 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 131 >->gt_memaddr, >->gt_memsize, NULL); 132 if (error) { 133 aprint_error(": can't determine memory size: error=%d\n", 134 error); 135 return; 136 } 137 if (console) { 138 gt->gt_ri = >en_console_ri; 139 gt->gt_nscreens = 1; 140 } else { 141 gt->gt_ri = malloc(sizeof(*gt->gt_ri), 142 M_DEVBUF, M_NOWAIT|M_ZERO); 143 if (gt->gt_ri == NULL) { 144 aprint_error(": can't alloc memory\n"); 145 return; 146 } 147 #if 0 148 error = pci_mapreg_map(pa, 0x14, 149 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 150 BUS_SPACE_MAP_LINEAR, NULL, 151 (bus_space_handle_t *) >->gt_ri->ri_bits, 152 NULL, NULL); 153 #else 154 error = bus_space_map(pa->pa_memt, gt->gt_memaddr + GTEN_VRAM_OFFSET, 155 960*1024, BUS_SPACE_MAP_LINEAR, 156 (bus_space_handle_t *) >->gt_ri->ri_bits); 157 #endif 158 if (error) { 159 aprint_error(": can't map frame buffer: error=%d\n", 160 error); 161 return; 162 } 163 164 gten_common_init(gt->gt_ri); 165 } 166 167 gt->gt_paddr = vtophys((vaddr_t)gt->gt_ri->ri_bits); 168 if (gt->gt_paddr == 0) { 169 aprint_error(": cannot map framebuffer\n"); 170 return; 171 } 172 gt->gt_psize = gt->gt_memsize - GTEN_VRAM_OFFSET; 173 174 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 175 aprint_normal(": %s\n", devinfo); 176 format_bytes(pbuf, sizeof(pbuf), gt->gt_psize); 177 aprint_normal("%s: %s, %dx%d, %dbpp\n", self->dv_xname, pbuf, 178 gt->gt_ri->ri_width, gt->gt_ri->ri_height, 179 gt->gt_ri->ri_depth); 180 #if defined(DEBUG) 181 aprint_debug("%s: text %dx%d, =+%d+%d\n", self->dv_xname, 182 gt->gt_ri->ri_cols, gt->gt_ri->ri_rows, 183 gt->gt_ri->ri_xorigin, gt->gt_ri->ri_yorigin); 184 185 { int i; 186 struct rasops_info *ri = gt->gt_ri; 187 for (i = 0; i < 64; i++) { 188 int j = i * ri->ri_stride; 189 int k = (ri->ri_height - i - 1) * gt->gt_ri->ri_stride; 190 memset(ri->ri_bits + j, 0, 64 - i); 191 memset(ri->ri_bits + j + 64 - i, 255, i); 192 193 memset(ri->ri_bits + j + ri->ri_width - 64 + i, 0, 64 - i); 194 memset(ri->ri_bits + j + ri->ri_width - 64, 255, i); 195 196 memset(ri->ri_bits + k, 0, 64 - i); 197 memset(ri->ri_bits + k + 64 - i, 255, i); 198 199 memset(ri->ri_bits + k + ri->ri_width - 64 + i, 0, 64 - i); 200 memset(ri->ri_bits + k + ri->ri_width - 64, 255, i); 201 }} 202 #endif 203 204 gt->gt_cmap_red[0] = gt->gt_cmap_green[0] = gt->gt_cmap_blue[0] = 0; 205 gt->gt_cmap_red[15] = gt->gt_cmap_red[255] = 0xff; 206 gt->gt_cmap_green[15] = gt->gt_cmap_green[255] = 0xff; 207 gt->gt_cmap_blue[15] = gt->gt_cmap_blue[255] = 0xff; 208 209 a.console = console; 210 a.scrdata = >en_screenlist; 211 a.accessops = >en_accessops; 212 a.accesscookie = gt; 213 214 config_found(self, &a, wsemuldisplaydevprint); 215 } 216 217 static void 218 gten_common_init(struct rasops_info *ri) 219 { 220 int32_t addr, width, height, linebytes, depth; 221 int i, screenbytes; 222 223 /* initialize rasops */ 224 ri->ri_width = 640; 225 ri->ri_height = 480; 226 ri->ri_depth = 8; 227 ri->ri_stride = 640; 228 ri->ri_flg = RI_FORCEMONO | RI_FULLCLEAR; 229 230 rasops_init(ri, 30, 80); 231 /* black on white */ 232 ri->ri_devcmap[0] = 0xffffffff; /* bg */ 233 ri->ri_devcmap[1] = 0; /* fg */ 234 235 memset(ri->ri_bits, 0xff, ri->ri_stride * ri->ri_height); 236 237 gten_stdscreen.nrows = ri->ri_rows; 238 gten_stdscreen.ncols = ri->ri_cols; 239 gten_stdscreen.textops = &ri->ri_ops; 240 gten_stdscreen.capabilities = ri->ri_caps; 241 } 242 243 static int 244 gten_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 245 struct proc *p) 246 { 247 struct gten_softc *gt = v; 248 struct wsdisplay_fbinfo *wdf; 249 struct grfinfo *gm; 250 251 switch (cmd) { 252 case WSDISPLAYIO_GTYPE: 253 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; /* XXX ? */ 254 return 0; 255 256 case WSDISPLAYIO_GINFO: 257 wdf = (void *)data; 258 wdf->height = gt->gt_ri->ri_height; 259 wdf->width = gt->gt_ri->ri_width; 260 wdf->depth = gt->gt_ri->ri_depth; 261 wdf->cmsize = 256; 262 return 0; 263 264 case WSDISPLAYIO_GETCMAP: 265 return gten_getcmap(gt, (struct wsdisplay_cmap *)data); 266 267 case WSDISPLAYIO_PUTCMAP: 268 return gten_putcmap(gt, (struct wsdisplay_cmap *)data); 269 } 270 return EPASSTHROUGH; 271 } 272 273 static paddr_t 274 gten_mmap(void *v, void *vs, off_t offset, int prot) 275 { 276 struct gten_softc *gt = v; 277 278 if (offset >= 0 && offset < gt->gt_psize) 279 return gt->gt_paddr + offset; 280 if (offset >= 0x1000000 && offset < gt->gt_memsize) 281 return gt->gt_memaddr + offset - 0x1000000; 282 283 return -1; 284 } 285 286 static int 287 gten_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 288 int *curxp, int *curyp, long *attrp) 289 { 290 struct gten_softc *gt = v; 291 struct rasops_info *ri = gt->gt_ri; 292 long defattr; 293 294 if (gt->gt_nscreens > 0) 295 return (ENOMEM); 296 297 *cookiep = ri; /* one and only for now */ 298 *curxp = 0; 299 *curyp = 0; 300 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 301 *attrp = defattr; 302 gt->gt_nscreens++; 303 return 0; 304 } 305 306 static void 307 gten_free_screen(void *v, void *cookie) 308 { 309 struct gten_softc *gt = v; 310 311 if (gt->gt_ri == >en_console_ri) 312 panic("gten_free_screen: console"); 313 314 gt->gt_nscreens--; 315 } 316 317 static int 318 gten_show_screen(void *v, void *cookie, int waitok, 319 void (*cb)(void *, int, int), void *cbarg) 320 { 321 return (0); 322 } 323 324 int 325 gten_cnattach(pci_chipset_tag_t pc, bus_space_tag_t memt) 326 { 327 struct rasops_info *ri = >en_console_ri; 328 u_int32_t mapreg, id, mask, mapsize; 329 long defattr; 330 pcitag_t tag; 331 int s, error; 332 bus_size_t bussize; 333 bus_addr_t busaddr; 334 335 tag = pci_make_tag(pc, 0, 14, 0); 336 337 id = pci_conf_read(pc, tag, PCI_ID_REG); 338 if (PCI_VENDOR(id) != PCI_VENDOR_WD || 339 PCI_PRODUCT(id) != PCI_PRODUCT_WD_90C) 340 return ENXIO; 341 342 mapreg = pci_conf_read(pc, tag, 0x14); 343 if (PCI_MAPREG_TYPE(mapreg) != PCI_MAPREG_TYPE_MEM || 344 PCI_MAPREG_MEM_TYPE(mapreg) != PCI_MAPREG_MEM_TYPE_32BIT) 345 return ENXIO; 346 347 s = splhigh(); 348 pci_conf_write(pc, tag, 0x14, 0xffffffff); 349 mask = pci_conf_read(pc, tag, 0x14); 350 pci_conf_write(pc, tag, 0x14, mapreg); 351 splx(s); 352 bussize = PCI_MAPREG_MEM_SIZE(mask); 353 busaddr = PCI_MAPREG_MEM_ADDR(mapreg); 354 355 error = bus_space_map(memt, busaddr + GTEN_VRAM_OFFSET, 960*1024, 356 BUS_SPACE_MAP_LINEAR, (bus_space_handle_t *) &ri->ri_bits); 357 if (error) 358 return error; 359 360 gten_common_init(ri); 361 362 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 363 wsdisplay_cnattach(>en_stdscreen, ri, 0, 0, defattr); 364 365 gten_console_pcitag = tag; 366 367 return 0; 368 } 369 370 static int 371 gten_getcmap(struct gten_softc *gt, struct wsdisplay_cmap *cm) 372 { 373 u_int index = cm->index; 374 u_int count = cm->count; 375 int error; 376 377 if (index >= 256 || count > 256 || index + count > 256) 378 return EINVAL; 379 380 error = copyout(>->gt_cmap_red[index], cm->red, count); 381 if (error) 382 return error; 383 error = copyout(>->gt_cmap_green[index], cm->green, count); 384 if (error) 385 return error; 386 error = copyout(>->gt_cmap_blue[index], cm->blue, count); 387 if (error) 388 return error; 389 390 return 0; 391 } 392 393 static int 394 gten_putcmap(struct gten_softc *gt, struct wsdisplay_cmap *cm) 395 { 396 int index = cm->index; 397 int count = cm->count; 398 int i, error; 399 u_char rbuf[256], gbuf[256], bbuf[256]; 400 401 if (cm->index >= 256 || cm->count > 256 || 402 (cm->index + cm->count) > 256) 403 return EINVAL; 404 error = copyin(cm->red, &rbuf[index], count); 405 if (error) 406 return error; 407 error = copyin(cm->green, &gbuf[index], count); 408 if (error) 409 return error; 410 error = copyin(cm->blue, &bbuf[index], count); 411 if (error) 412 return error; 413 414 memcpy(>->gt_cmap_red[index], &rbuf[index], count); 415 memcpy(>->gt_cmap_green[index], &gbuf[index], count); 416 memcpy(>->gt_cmap_blue[index], &bbuf[index], count); 417 return 0; 418 } 419