1 /* $NetBSD: gten.c,v 1.24 2021/08/07 16:19:03 thorpej 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 (at) 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 1.24 2021/08/07 16:19:03 thorpej 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/kmem.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 <sys/bus.h> 55 #include <machine/gtenvar.h> 56 57 static int gten_match(device_t, cfdata_t, void *); 58 static void gten_attach(device_t, device_t, void *); 59 static int gten_print(void *, const char *); 60 61 CFATTACH_DECL_NEW(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(device_t parent, cfdata_t 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(device_t parent, device_t self, void *aux) 121 { 122 struct gten_softc *gt = device_private(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 gt->gt_dev = self; 138 if (console) { 139 gt->gt_ri = >en_console_ri; 140 gt->gt_nscreens = 1; 141 } else { 142 gt->gt_ri = kmem_zalloc(sizeof(*gt->gt_ri), 143 KM_SLEEP); 144 #if 0 145 error = pci_mapreg_map(pa, 0x14, 146 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 147 BUS_SPACE_MAP_LINEAR, NULL, 148 (bus_space_handle_t *) >->gt_ri->ri_bits, 149 NULL, NULL); 150 #else 151 error = bus_space_map(pa->pa_memt, gt->gt_memaddr + GTEN_VRAM_OFFSET, 152 960*1024, BUS_SPACE_MAP_LINEAR, 153 (bus_space_handle_t *) >->gt_ri->ri_bits); 154 #endif 155 if (error) { 156 aprint_error(": can't map frame buffer: error=%d\n", 157 error); 158 return; 159 } 160 161 gten_common_init(gt->gt_ri); 162 } 163 164 gt->gt_paddr = vtophys((vaddr_t)gt->gt_ri->ri_bits); 165 if (gt->gt_paddr == 0) { 166 aprint_error(": cannot map framebuffer\n"); 167 return; 168 } 169 gt->gt_psize = gt->gt_memsize - GTEN_VRAM_OFFSET; 170 171 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 172 aprint_normal(": %s\n", devinfo); 173 format_bytes(pbuf, sizeof(pbuf), gt->gt_psize); 174 aprint_normal_dev(self, "%s: %s, %dx%d, %dbpp\n", pbuf, 175 gt->gt_ri->ri_width, gt->gt_ri->ri_height, 176 gt->gt_ri->ri_depth); 177 #if defined(DEBUG) 178 aprint_debug_dev(self, "%s: text %dx%d, =+%d+%d\n", 179 gt->gt_ri->ri_cols, gt->gt_ri->ri_rows, 180 gt->gt_ri->ri_xorigin, gt->gt_ri->ri_yorigin); 181 182 { int i; 183 struct rasops_info *ri = gt->gt_ri; 184 for (i = 0; i < 64; i++) { 185 int j = i * ri->ri_stride; 186 int k = (ri->ri_height - i - 1) * gt->gt_ri->ri_stride; 187 memset(ri->ri_bits + j, 0, 64 - i); 188 memset(ri->ri_bits + j + 64 - i, 255, i); 189 190 memset(ri->ri_bits + j + ri->ri_width - 64 + i, 0, 64 - i); 191 memset(ri->ri_bits + j + ri->ri_width - 64, 255, i); 192 193 memset(ri->ri_bits + k, 0, 64 - i); 194 memset(ri->ri_bits + k + 64 - i, 255, i); 195 196 memset(ri->ri_bits + k + ri->ri_width - 64 + i, 0, 64 - i); 197 memset(ri->ri_bits + k + ri->ri_width - 64, 255, i); 198 }} 199 #endif 200 201 gt->gt_cmap_red[0] = gt->gt_cmap_green[0] = gt->gt_cmap_blue[0] = 0; 202 gt->gt_cmap_red[15] = gt->gt_cmap_red[255] = 0xff; 203 gt->gt_cmap_green[15] = gt->gt_cmap_green[255] = 0xff; 204 gt->gt_cmap_blue[15] = gt->gt_cmap_blue[255] = 0xff; 205 206 a.console = console; 207 a.scrdata = >en_screenlist; 208 a.accessops = >en_accessops; 209 a.accesscookie = gt; 210 211 config_found(self, &a, wsemuldisplaydevprint, CFARGS_NONE); 212 } 213 214 static void 215 gten_common_init(struct rasops_info *ri) 216 { 217 int32_t addr, width, height, linebytes, depth; 218 int i, screenbytes; 219 220 /* initialize rasops */ 221 ri->ri_width = 640; 222 ri->ri_height = 480; 223 ri->ri_depth = 8; 224 ri->ri_stride = 640; 225 ri->ri_flg = RI_FORCEMONO | RI_FULLCLEAR; 226 227 rasops_init(ri, 30, 80); 228 /* black on white */ 229 ri->ri_devcmap[0] = 0xffffffff; /* bg */ 230 ri->ri_devcmap[1] = 0; /* fg */ 231 232 memset(ri->ri_bits, 0xff, ri->ri_stride * ri->ri_height); 233 234 gten_stdscreen.nrows = ri->ri_rows; 235 gten_stdscreen.ncols = ri->ri_cols; 236 gten_stdscreen.textops = &ri->ri_ops; 237 gten_stdscreen.capabilities = ri->ri_caps; 238 } 239 240 static int 241 gten_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 242 struct proc *p) 243 { 244 struct gten_softc *gt = v; 245 struct wsdisplay_fbinfo *wdf; 246 struct grfinfo *gm; 247 248 switch (cmd) { 249 case WSDISPLAYIO_GTYPE: 250 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; /* XXX ? */ 251 return 0; 252 253 case WSDISPLAYIO_GINFO: 254 wdf = (void *)data; 255 wdf->height = gt->gt_ri->ri_height; 256 wdf->width = gt->gt_ri->ri_width; 257 wdf->depth = gt->gt_ri->ri_depth; 258 wdf->cmsize = 256; 259 return 0; 260 261 case WSDISPLAYIO_GETCMAP: 262 return gten_getcmap(gt, (struct wsdisplay_cmap *)data); 263 264 case WSDISPLAYIO_PUTCMAP: 265 return gten_putcmap(gt, (struct wsdisplay_cmap *)data); 266 } 267 return EPASSTHROUGH; 268 } 269 270 static paddr_t 271 gten_mmap(void *v, void *vs, off_t offset, int prot) 272 { 273 struct gten_softc *gt = v; 274 275 if (offset >= 0 && offset < gt->gt_psize) 276 return gt->gt_paddr + offset; 277 if (offset >= 0x1000000 && offset < gt->gt_memsize) 278 return gt->gt_memaddr + offset - 0x1000000; 279 280 return -1; 281 } 282 283 static int 284 gten_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 285 int *curxp, int *curyp, long *attrp) 286 { 287 struct gten_softc *gt = v; 288 struct rasops_info *ri = gt->gt_ri; 289 long defattr; 290 291 if (gt->gt_nscreens > 0) 292 return (ENOMEM); 293 294 *cookiep = ri; /* one and only for now */ 295 *curxp = 0; 296 *curyp = 0; 297 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 298 *attrp = defattr; 299 gt->gt_nscreens++; 300 return 0; 301 } 302 303 static void 304 gten_free_screen(void *v, void *cookie) 305 { 306 struct gten_softc *gt = v; 307 308 if (gt->gt_ri == >en_console_ri) 309 panic("gten_free_screen: console"); 310 311 gt->gt_nscreens--; 312 } 313 314 static int 315 gten_show_screen(void *v, void *cookie, int waitok, 316 void (*cb)(void *, int, int), void *cbarg) 317 { 318 return (0); 319 } 320 321 int 322 gten_cnattach(pci_chipset_tag_t pc, bus_space_tag_t memt) 323 { 324 struct rasops_info *ri = >en_console_ri; 325 u_int32_t mapreg, id, mask, mapsize; 326 long defattr; 327 pcitag_t tag; 328 int s, error; 329 bus_size_t bussize; 330 bus_addr_t busaddr; 331 332 tag = pci_make_tag(pc, 0, 14, 0); 333 334 id = pci_conf_read(pc, tag, PCI_ID_REG); 335 if (PCI_VENDOR(id) != PCI_VENDOR_WD || 336 PCI_PRODUCT(id) != PCI_PRODUCT_WD_90C) 337 return ENXIO; 338 339 mapreg = pci_conf_read(pc, tag, 0x14); 340 if (PCI_MAPREG_TYPE(mapreg) != PCI_MAPREG_TYPE_MEM || 341 PCI_MAPREG_MEM_TYPE(mapreg) != PCI_MAPREG_MEM_TYPE_32BIT) 342 return ENXIO; 343 344 s = splhigh(); 345 pci_conf_write(pc, tag, 0x14, 0xffffffff); 346 mask = pci_conf_read(pc, tag, 0x14); 347 pci_conf_write(pc, tag, 0x14, mapreg); 348 splx(s); 349 bussize = PCI_MAPREG_MEM_SIZE(mask); 350 busaddr = PCI_MAPREG_MEM_ADDR(mapreg); 351 352 error = bus_space_map(memt, busaddr + GTEN_VRAM_OFFSET, 960*1024, 353 BUS_SPACE_MAP_LINEAR, (bus_space_handle_t *) &ri->ri_bits); 354 if (error) 355 return error; 356 357 gten_common_init(ri); 358 359 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 360 wsdisplay_cnattach(>en_stdscreen, ri, 0, 0, defattr); 361 362 gten_console_pcitag = tag; 363 364 return 0; 365 } 366 367 static int 368 gten_getcmap(struct gten_softc *gt, struct wsdisplay_cmap *cm) 369 { 370 u_int index = cm->index; 371 u_int count = cm->count; 372 int error; 373 374 if (index >= 256 || count > 256 || index + count > 256) 375 return EINVAL; 376 377 error = copyout(>->gt_cmap_red[index], cm->red, count); 378 if (error) 379 return error; 380 error = copyout(>->gt_cmap_green[index], cm->green, count); 381 if (error) 382 return error; 383 error = copyout(>->gt_cmap_blue[index], cm->blue, count); 384 if (error) 385 return error; 386 387 return 0; 388 } 389 390 static int 391 gten_putcmap(struct gten_softc *gt, struct wsdisplay_cmap *cm) 392 { 393 int index = cm->index; 394 int count = cm->count; 395 int i, error; 396 u_char rbuf[256], gbuf[256], bbuf[256]; 397 398 if (cm->index >= 256 || cm->count > 256 || 399 (cm->index + cm->count) > 256) 400 return EINVAL; 401 error = copyin(cm->red, &rbuf[index], count); 402 if (error) 403 return error; 404 error = copyin(cm->green, &gbuf[index], count); 405 if (error) 406 return error; 407 error = copyin(cm->blue, &bbuf[index], count); 408 if (error) 409 return error; 410 411 memcpy(>->gt_cmap_red[index], &rbuf[index], count); 412 memcpy(>->gt_cmap_green[index], &gbuf[index], count); 413 memcpy(>->gt_cmap_blue[index], &bbuf[index], count); 414 return 0; 415 } 416
Indexes created Sun Sep 21 20:09:37 GMT 2025