1/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nsc/nsc_gx2_cursor.c,v 1.5tsi Exp $ */ 2/* 3 * $Workfile: nsc_gx2_cursor.c $ 4 * $Revision: 1.1.1.1 $ 5 * $Author: mrg $ 6 * 7 * File Contents: Xfree cursor implementation routines 8 * for geode HWcursor init.setting cursor color,image etc 9 * are done here. 10 * Project: Geode Xfree Frame buffer device driver. 11 * 12 */ 13 14/* 15 * NSC_LIC_ALTERNATIVE_PREAMBLE 16 * 17 * Revision 1.0 18 * 19 * National Semiconductor Alternative GPL-BSD License 20 * 21 * National Semiconductor Corporation licenses this software 22 * ("Software"): 23 * 24 * National Xfree frame buffer driver 25 * 26 * under one of the two following licenses, depending on how the 27 * Software is received by the Licensee. 28 * 29 * If this Software is received as part of the Linux Framebuffer or 30 * other GPL licensed software, then the GPL license designated 31 * NSC_LIC_GPL applies to this Software; in all other circumstances 32 * then the BSD-style license designated NSC_LIC_BSD shall apply. 33 * 34 * END_NSC_LIC_ALTERNATIVE_PREAMBLE */ 35 36/* NSC_LIC_BSD 37 * 38 * National Semiconductor Corporation Open Source License for 39 * 40 * National Xfree frame buffer driver 41 * 42 * (BSD License with Export Notice) 43 * 44 * Copyright (c) 1999-2001 45 * National Semiconductor Corporation. 46 * All rights reserved. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 52 * * Redistributions of source code must retain the above copyright 53 * notice, this list of conditions and the following disclaimer. 54 * 55 * * Redistributions in binary form must reproduce the above 56 * copyright notice, this list of conditions and the following 57 * disclaimer in the documentation and/or other materials provided 58 * with the distribution. 59 * 60 * * Neither the name of the National Semiconductor Corporation nor 61 * the names of its contributors may be used to endorse or promote 62 * products derived from this software without specific prior 63 * written permission. 64 * 65 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 66 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 67 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 68 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 69 * NATIONAL SEMICONDUCTOR CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY 70 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 71 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 72 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 73 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 74 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE, 75 * INTELLECTUAL PROPERTY INFRINGEMENT, OR OTHERWISE) ARISING IN ANY WAY 76 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 77 * OF SUCH DAMAGE. 78 * 79 * EXPORT LAWS: THIS LICENSE ADDS NO RESTRICTIONS TO THE EXPORT LAWS OF 80 * YOUR JURISDICTION. It is licensee's responsibility to comply with 81 * any export regulations applicable in licensee's jurisdiction. Under 82 * CURRENT (2001) U.S. export regulations this software 83 * is eligible for export from the U.S. and can be downloaded by or 84 * otherwise exported or reexported worldwide EXCEPT to U.S. embargoed 85 * destinations which include Cuba, Iraq, Libya, North Korea, Iran, 86 * Syria, Sudan, Afghanistan and any other country to which the U.S. 87 * has embargoed goods and services. 88 * 89 * END_NSC_LIC_BSD */ 90 91/* NSC_LIC_GPL 92 * 93 * National Semiconductor Corporation Gnu General Public License for 94 * 95 * National Xfree frame buffer driver 96 * 97 * (GPL License with Export Notice) 98 * 99 * Copyright (c) 1999-2001 100 * National Semiconductor Corporation. 101 * All rights reserved. 102 * 103 * Redistribution and use in source and binary forms, with or without 104 * modification, are permitted under the terms of the GNU General 105 * Public License as published by the Free Software Foundation; either 106 * version 2 of the License, or (at your option) any later version 107 * 108 * In addition to the terms of the GNU General Public License, neither 109 * the name of the National Semiconductor Corporation nor the names of 110 * its contributors may be used to endorse or promote products derived 111 * from this software without specific prior written permission. 112 * 113 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 114 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 115 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 116 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 117 * NATIONAL SEMICONDUCTOR CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY 118 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 119 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 120 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 121 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 122 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE, 123 * INTELLECTUAL PROPERTY INFRINGEMENT, OR OTHERWISE) ARISING IN ANY WAY 124 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 125 * OF SUCH DAMAGE. See the GNU General Public License for more details. 126 * 127 * EXPORT LAWS: THIS LICENSE ADDS NO RESTRICTIONS TO THE EXPORT LAWS OF 128 * YOUR JURISDICTION. It is licensee's responsibility to comply with 129 * any export regulations applicable in licensee's jurisdiction. Under 130 * CURRENT (2001) U.S. export regulations this software 131 * is eligible for export from the U.S. and can be downloaded by or 132 * otherwise exported or reexported worldwide EXCEPT to U.S. embargoed 133 * destinations which include Cuba, Iraq, Libya, North Korea, Iran, 134 * Syria, Sudan, Afghanistan and any other country to which the U.S. 135 * has embargoed goods and services. 136 * 137 * You should have received a copy of the GNU General Public License 138 * along with this file; if not, write to the Free Software Foundation, 139 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 140 * 141 * END_NSC_LIC_GPL */ 142 143#ifdef HAVE_CONFIG_H 144#include "config.h" 145#endif 146 147#include "xf86.h" 148#include "xf86_OSproc.h" 149#include "xf86Pci.h" 150#include "xf86PciInfo.h" 151#include "nsc.h" 152 153/* Forward declarations of the functions */ 154Bool GX2HWCursorInit(ScreenPtr pScreen); 155static void GX2SetCursorColors(ScrnInfoPtr pScreenInfo, int bg, int fg); 156static void GX2SetCursorPosition(ScrnInfoPtr pScreenInfo, int x, int y); 157void GX2LoadCursorImage(ScrnInfoPtr pScreenInfo, unsigned char *src); 158void GX2HideCursor(ScrnInfoPtr pScreenInfo); 159void GX2ShowCursor(ScrnInfoPtr pScreenInfo); 160static Bool GX2UseHWCursor(ScreenPtr pScreen, CursorPtr pCurs); 161extern void GX2SetVideoPosition(int x, int y, int width, int height, 162 short src_w, short src_h, short drw_w, 163 short drw_h, int id, int offset, 164 ScrnInfoPtr pScrn); 165 166/*---------------------------------------------------------------------------- 167 * GX2HWCursorInit. 168 * 169 * Description :This function sets the cursor information by probing the 170 * hardware. 171 * 172 * Parameters. 173 * pScreen :Screeen pointer structure. 174 * 175 * Returns :TRUE on success and FALSE on Failure 176 * 177 * Comments :Geode supports the hardware_cursor,no need to enable SW 178 * cursor. 179*---------------------------------------------------------------------------- 180*/ 181Bool 182GX2HWCursorInit(ScreenPtr pScreen) 183{ 184 ScrnInfoPtr pScreenInfo = xf86Screens[pScreen->myNum]; 185 GeodePtr pGeode = GEODEPTR(pScreenInfo); 186 xf86CursorInfoPtr infoPtr; 187 188 infoPtr = xf86CreateCursorInfoRec(); 189 if (!infoPtr) 190 return FALSE; 191 /* the geode structure is intiallized with the cursor infoRec */ 192 pGeode->CursorInfo = infoPtr; 193 infoPtr->MaxWidth = 32; 194 infoPtr->MaxHeight = 32; 195 /* seeting up the cursor flags */ 196 infoPtr->Flags = HARDWARE_CURSOR_BIT_ORDER_MSBFIRST | 197 HARDWARE_CURSOR_TRUECOLOR_AT_8BPP | 198 HARDWARE_CURSOR_SOURCE_MASK_NOT_INTERLEAVED; 199 /* cursor info ptr is intiallized with the values obtained from 200 * * durnago calls 201 */ 202 infoPtr->SetCursorColors = GX2SetCursorColors; 203 infoPtr->SetCursorPosition = GX2SetCursorPosition; 204 infoPtr->LoadCursorImage = GX2LoadCursorImage; 205 infoPtr->HideCursor = GX2HideCursor; 206 infoPtr->ShowCursor = GX2ShowCursor; 207 infoPtr->UseHWCursor = GX2UseHWCursor; 208 return (xf86InitCursor(pScreen, infoPtr)); 209} 210 211/*---------------------------------------------------------------------------- 212 * GX2SetCursorColors. 213 * 214 * Description :This function sets the cursor foreground and background 215 * colors 216 * Parameters: 217 * pScreen: Screeen pointer structure. 218 * bg: Specifies the color value of cursor background color. 219 * fg: Specifies the color value of cursor foreground color. 220 * Returns: none. 221 * 222 * Comments: The integer color value passed by this function is 223 * converted into * RGB value by the gfx_set_color routines. 224 *---------------------------------------------------------------------------- 225 */ 226static void 227GX2SetCursorColors(ScrnInfoPtr pScreenInfo, int bg, int fg) 228{ 229 GFX(set_cursor_colors(bg, fg)); 230} 231 232/*---------------------------------------------------------------------------- 233 * GX2SetCursorPosition. 234 * 235 * Description :This function sets the cursor co -ordinates and enable the 236 * cursor. 237 * 238 * Parameters: 239 * pScreen: Screeen pointer structure. 240 * x: Specifies the x-cordinates of the cursor. 241 * y: Specifies the y co-ordinate of the cursor. 242 * Returns: none. 243 * 244 *---------------------------------------------------------------------------- 245 */ 246static void 247GX2SetCursorPosition(ScrnInfoPtr pScreenInfo, int x, int y) 248{ 249 unsigned long offset; 250 static int panOffset = 0; 251 GeodePtr pGeode = GEODEPTR(pScreenInfo); 252 253 unsigned short xhot = 0, yhot = 0; 254 255 if (x < 0) { 256 xhot = (unsigned short)(-x); 257 x = 0; 258 } 259 if (y < 0) { 260 yhot = (unsigned short)(-y); 261 y = 0; 262 } 263 264 GFX(set_cursor_position(pGeode->CursorStartOffset, x, y, xhot, yhot)); 265 GFX(set_cursor_enable(1)); 266 267 if ((pGeode->OverlayON) && (pGeode->Panel)) { 268#if defined(STB_X) 269 Gal_get_display_offset(&offset); 270#else 271 offset = gfx_get_display_offset(); 272#endif 273 if (offset != panOffset) { 274 GX2SetVideoPosition(pGeode->video_x, pGeode->video_y, 275 pGeode->video_w, pGeode->video_h, 276 pGeode->video_srcw, pGeode->video_srch, 277 pGeode->video_dstw, pGeode->video_dsth, 278 pGeode->video_id, pGeode->video_offset, 279 pGeode->video_scrnptr); 280 panOffset = offset; 281 } 282 } 283} 284 285/*---------------------------------------------------------------------------- 286 * GX2LoadCursorImage 287 * 288 * Description :This function loads the 32x32 cursor pattern.The shape 289 * and color is set by AND and XOR masking of arrays of 32 290 * DWORD. 291 * Parameters: 292 * pScreen: Screeen pointer structure. 293 * src : Specifies cursor data. 294 * Returns : none 295 * 296 *---------------------------------------------------------------------------- 297*/ 298void 299GX2LoadCursorImage(ScrnInfoPtr pScreenInfo, unsigned char *src) 300{ 301 int i; 302 unsigned long shape; 303 unsigned long mask; 304 unsigned long andMask[32] = { 0, }; 305 unsigned long xorMask[32] = { 0, }; 306 GeodePtr pGeode = GEODEPTR(pScreenInfo); 307 308 for (i = 0; i < 32; i++) { 309 if (src) { 310 shape = ((unsigned long)src[i * 4] << 24) | 311 ((unsigned long)src[i * 4 + 1] << 16) | 312 ((unsigned long)src[i * 4 + 2] << 8) | 313 ((unsigned long)src[i * 4 + 3] << 0); 314 mask = ((unsigned long)src[i * 4 + 128] << 24) | 315 ((unsigned long)src[i * 4 + 1 + 128] << 16) | 316 ((unsigned long)src[i * 4 + 2 + 128] << 8) | 317 ((unsigned long)src[i * 4 + 3 + 128] << 0); 318 } else { 319 mask = 0x0; 320 shape = 0xFFFFFFFF; 321 } 322 323 andMask[i] = ~(mask); 324 xorMask[i] = shape & mask; 325 } 326 327 GFX(set_cursor_shape32(pGeode->CursorStartOffset, andMask, xorMask)); 328} 329 330/*---------------------------------------------------------------------------- 331 * GX2HideCursor. 332 * 333 * Description :This function will disable the cursor. 334 * 335 * Parameters: 336 * pScreen: Handles to the Screeen pointer structure. 337 * 338 * Returns: none. 339 * 340 * Comments: gfx_set_cursor enable function is hardcoded to disable 341 * the cursor. 342 *---------------------------------------------------------------------------- 343 */ 344void 345GX2HideCursor(ScrnInfoPtr pScreenInfo) 346{ 347 GFX(set_cursor_enable(0)); 348} 349 350/*---------------------------------------------------------------------------- 351 * GX2ShowCursor 352 * 353 * Description :This function will enable the cursor. 354 * 355 * Parameters: 356 * pScreen :Handles to the Screeen pointer structure. 357 * 358 * Returns :none 359 * 360 * Comments :gfx_set_cursor enable function is hardcoded to enable the 361 * cursor 362 *---------------------------------------------------------------------------- 363*/ 364void 365GX2ShowCursor(ScrnInfoPtr pScreenInfo) 366{ 367 GFX(set_cursor_enable(1)); 368} 369 370/*---------------------------------------------------------------------------- 371 * GX2UseHwCursor. 372 * 373 * Description :This function will sets the hardware cursor flag in 374 * pscreen structure. 375 * 376 * Parameters. 377 * pScreen :Handles to the Screeen pointer structure. 378 * 379 * Returns :none 380 * 381 * Comments :none 382 * 383 *---------------------------------------------------------------------------- 384*/ 385static Bool 386GX2UseHWCursor(ScreenPtr pScreen, CursorPtr pCurs) 387{ 388 ScrnInfoPtr pScreenInfo = XF86SCRNINFO(pScreen); 389 390 if (pScreenInfo->currentMode->Flags & V_DBLSCAN) 391 return FALSE; 392 return TRUE; 393} 394 395/* End of File */ 396