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pm2fb.c
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linux-6.19.14/drivers/video/fbdev/pm2fb.c
1/* 2 * Permedia2 framebuffer driver. 3 * 4 * 2.5/2.6 driver: 5 * Copyright (c) 2003 Jim Hague (jim.hague@acm.org) 6 * 7 * based on 2.4 driver: 8 * Copyright (c) 1998-2000 Ilario Nardinocchi (nardinoc@CS.UniBO.IT) 9 * Copyright (c) 1999 Jakub Jelinek (jakub@redhat.com) 10 * 11 * and additional input from James Simmon's port of Hannu Mallat's tdfx 12 * driver. 13 * 14 * I have a Creative Graphics Blaster Exxtreme card - pm2fb on x86. I 15 * have no access to other pm2fb implementations. Sparc (and thus 16 * hopefully other big-endian) devices now work, thanks to a lot of 17 * testing work by Ron Murray. I have no access to CVision hardware, 18 * and therefore for now I am omitting the CVision code. 19 * 20 * Multiple boards support has been on the TODO list for ages. 21 * Don't expect this to change. 22 * 23 * This file is subject to the terms and conditions of the GNU General Public 24 * License. See the file COPYING in the main directory of this archive for 25 * more details. 26 * 27 * 28 */ 29 30#include <linux/aperture.h> 31#include <linux/module.h> 32#include <linux/moduleparam.h> 33#include <linux/kernel.h> 34#include <linux/errno.h> 35#include <linux/string.h> 36#include <linux/mm.h> 37#include <linux/slab.h> 38#include <linux/delay.h> 39#include <linux/fb.h> 40#include <linux/init.h> 41#include <linux/pci.h> 42#include <video/permedia2.h> 43#include <video/cvisionppc.h> 44 45#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN) 46#error "The endianness of the target host has not been defined." 47#endif 48 49#if !defined(CONFIG_PCI) 50#error "Only generic PCI cards supported." 51#endif 52 53#undef PM2FB_MASTER_DEBUG 54#ifdef PM2FB_MASTER_DEBUG 55#define DPRINTK(a, b...) \ 56 printk(KERN_DEBUG "pm2fb: %s: " a, __func__ , ## b) 57#else 58#define DPRINTK(a, b...) no_printk(a, ##b) 59#endif 60 61#define PM2_PIXMAP_SIZE (1600 * 4) 62 63/* 64 * Driver data 65 */ 66static int hwcursor = 1; 67static char *mode_option; 68 69/* 70 * The XFree GLINT driver will (I think to implement hardware cursor 71 * support on TVP4010 and similar where there is no RAMDAC - see 72 * comment in set_video) always request +ve sync regardless of what 73 * the mode requires. This screws me because I have a Sun 74 * fixed-frequency monitor which absolutely has to have -ve sync. So 75 * these flags allow the user to specify that requests for +ve sync 76 * should be silently turned in -ve sync. 77 */ 78static bool lowhsync; 79static bool lowvsync; 80static bool noaccel; 81static bool nomtrr; 82 83/* 84 * The hardware state of the graphics card that isn't part of the 85 * screeninfo. 86 */ 87struct pm2fb_par 88{ 89 pm2type_t type; /* Board type */ 90 unsigned char __iomem *v_regs;/* virtual address of p_regs */ 91 u32 memclock; /* memclock */ 92 u32 video; /* video flags before blanking */ 93 u32 mem_config; /* MemConfig reg at probe */ 94 u32 mem_control; /* MemControl reg at probe */ 95 u32 boot_address; /* BootAddress reg at probe */ 96 u32 palette[16]; 97 int wc_cookie; 98}; 99 100/* 101 * Here we define the default structs fb_fix_screeninfo and fb_var_screeninfo 102 * if we don't use modedb. 103 */ 104static struct fb_fix_screeninfo pm2fb_fix = { 105 .id = "", 106 .type = FB_TYPE_PACKED_PIXELS, 107 .visual = FB_VISUAL_PSEUDOCOLOR, 108 .xpanstep = 1, 109 .ypanstep = 1, 110 .ywrapstep = 0, 111 .accel = FB_ACCEL_3DLABS_PERMEDIA2, 112}; 113 114/* 115 * Default video mode. In case the modedb doesn't work. 116 */ 117static const struct fb_var_screeninfo pm2fb_var = { 118 /* "640x480, 8 bpp @ 60 Hz */ 119 .xres = 640, 120 .yres = 480, 121 .xres_virtual = 640, 122 .yres_virtual = 480, 123 .bits_per_pixel = 8, 124 .red = {0, 8, 0}, 125 .blue = {0, 8, 0}, 126 .green = {0, 8, 0}, 127 .activate = FB_ACTIVATE_NOW, 128 .height = -1, 129 .width = -1, 130 .accel_flags = 0, 131 .pixclock = 39721, 132 .left_margin = 40, 133 .right_margin = 24, 134 .upper_margin = 32, 135 .lower_margin = 11, 136 .hsync_len = 96, 137 .vsync_len = 2, 138 .vmode = FB_VMODE_NONINTERLACED 139}; 140 141/* 142 * Utility functions 143 */ 144 145static inline u32 pm2_RD(struct pm2fb_par *p, s32 off) 146{ 147 return fb_readl(p->v_regs + off); 148} 149 150static inline void pm2_WR(struct pm2fb_par *p, s32 off, u32 v) 151{ 152 fb_writel(v, p->v_regs + off); 153} 154 155static inline u32 pm2_RDAC_RD(struct pm2fb_par *p, s32 idx) 156{ 157 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx); 158 mb(); 159 return pm2_RD(p, PM2R_RD_INDEXED_DATA); 160} 161 162static inline u32 pm2v_RDAC_RD(struct pm2fb_par *p, s32 idx) 163{ 164 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); 165 mb(); 166 return pm2_RD(p, PM2VR_RD_INDEXED_DATA); 167} 168 169static inline void pm2_RDAC_WR(struct pm2fb_par *p, s32 idx, u32 v) 170{ 171 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx); 172 wmb(); 173 pm2_WR(p, PM2R_RD_INDEXED_DATA, v); 174 wmb(); 175} 176 177static inline void pm2v_RDAC_WR(struct pm2fb_par *p, s32 idx, u32 v) 178{ 179 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); 180 wmb(); 181 pm2_WR(p, PM2VR_RD_INDEXED_DATA, v); 182 wmb(); 183} 184 185#ifdef CONFIG_FB_PM2_FIFO_DISCONNECT 186#define WAIT_FIFO(p, a) 187#else 188static inline void WAIT_FIFO(struct pm2fb_par *p, u32 a) 189{ 190 while (pm2_RD(p, PM2R_IN_FIFO_SPACE) < a) 191 cpu_relax(); 192} 193#endif 194 195/* 196 * partial products for the supported horizontal resolutions. 197 */ 198#define PACKPP(p0, p1, p2) (((p2) << 6) | ((p1) << 3) | (p0)) 199static const struct { 200 u16 width; 201 u16 pp; 202} pp_table[] = { 203 { 32, PACKPP(1, 0, 0) }, { 64, PACKPP(1, 1, 0) }, 204 { 96, PACKPP(1, 1, 1) }, { 128, PACKPP(2, 1, 1) }, 205 { 160, PACKPP(2, 2, 1) }, { 192, PACKPP(2, 2, 2) }, 206 { 224, PACKPP(3, 2, 1) }, { 256, PACKPP(3, 2, 2) }, 207 { 288, PACKPP(3, 3, 1) }, { 320, PACKPP(3, 3, 2) }, 208 { 384, PACKPP(3, 3, 3) }, { 416, PACKPP(4, 3, 1) }, 209 { 448, PACKPP(4, 3, 2) }, { 512, PACKPP(4, 3, 3) }, 210 { 544, PACKPP(4, 4, 1) }, { 576, PACKPP(4, 4, 2) }, 211 { 640, PACKPP(4, 4, 3) }, { 768, PACKPP(4, 4, 4) }, 212 { 800, PACKPP(5, 4, 1) }, { 832, PACKPP(5, 4, 2) }, 213 { 896, PACKPP(5, 4, 3) }, { 1024, PACKPP(5, 4, 4) }, 214 { 1056, PACKPP(5, 5, 1) }, { 1088, PACKPP(5, 5, 2) }, 215 { 1152, PACKPP(5, 5, 3) }, { 1280, PACKPP(5, 5, 4) }, 216 { 1536, PACKPP(5, 5, 5) }, { 1568, PACKPP(6, 5, 1) }, 217 { 1600, PACKPP(6, 5, 2) }, { 1664, PACKPP(6, 5, 3) }, 218 { 1792, PACKPP(6, 5, 4) }, { 2048, PACKPP(6, 5, 5) }, 219 { 0, 0 } }; 220 221static u32 partprod(u32 xres) 222{ 223 int i; 224 225 for (i = 0; pp_table[i].width && pp_table[i].width != xres; i++) 226 ; 227 if (pp_table[i].width == 0) 228 DPRINTK("invalid width %u\n", xres); 229 return pp_table[i].pp; 230} 231 232static u32 to3264(u32 timing, int bpp, int is64) 233{ 234 switch (bpp) { 235 case 24: 236 timing *= 3; 237 fallthrough; 238 case 8: 239 timing >>= 1; 240 fallthrough; 241 case 16: 242 timing >>= 1; 243 fallthrough; 244 case 32: 245 break; 246 } 247 if (is64) 248 timing >>= 1; 249 return timing; 250} 251 252static void pm2_mnp(u32 clk, unsigned char *mm, unsigned char *nn, 253 unsigned char *pp) 254{ 255 unsigned char m; 256 unsigned char n; 257 unsigned char p; 258 u32 f; 259 s32 curr; 260 s32 delta = 100000; 261 262 *mm = *nn = *pp = 0; 263 for (n = 2; n < 15; n++) { 264 for (m = 2; m; m++) { 265 f = PM2_REFERENCE_CLOCK * m / n; 266 if (f >= 150000 && f <= 300000) { 267 for (p = 0; p < 5; p++, f >>= 1) { 268 curr = (clk > f) ? clk - f : f - clk; 269 if (curr < delta) { 270 delta = curr; 271 *mm = m; 272 *nn = n; 273 *pp = p; 274 } 275 } 276 } 277 } 278 } 279} 280 281static void pm2v_mnp(u32 clk, unsigned char *mm, unsigned char *nn, 282 unsigned char *pp) 283{ 284 unsigned char m; 285 unsigned char n; 286 unsigned char p; 287 u32 f; 288 s32 delta = 1000; 289 290 *mm = *nn = *pp = 0; 291 for (m = 1; m < 128; m++) { 292 for (n = 2 * m + 1; n; n++) { 293 for (p = 0; p < 2; p++) { 294 f = (PM2_REFERENCE_CLOCK >> (p + 1)) * n / m; 295 if (clk > f - delta && clk < f + delta) { 296 delta = (clk > f) ? clk - f : f - clk; 297 *mm = m; 298 *nn = n; 299 *pp = p; 300 } 301 } 302 } 303 } 304} 305 306static void clear_palette(struct pm2fb_par *p) 307{ 308 int i = 256; 309 310 WAIT_FIFO(p, 1); 311 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, 0); 312 wmb(); 313 while (i--) { 314 WAIT_FIFO(p, 3); 315 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); 316 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); 317 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); 318 } 319} 320 321static void reset_card(struct pm2fb_par *p) 322{ 323 if (p->type == PM2_TYPE_PERMEDIA2V) 324 pm2_WR(p, PM2VR_RD_INDEX_HIGH, 0); 325 pm2_WR(p, PM2R_RESET_STATUS, 0); 326 mb(); 327 while (pm2_RD(p, PM2R_RESET_STATUS) & PM2F_BEING_RESET) 328 cpu_relax(); 329 mb(); 330#ifdef CONFIG_FB_PM2_FIFO_DISCONNECT 331 DPRINTK("FIFO disconnect enabled\n"); 332 pm2_WR(p, PM2R_FIFO_DISCON, 1); 333 mb(); 334#endif 335 336 /* Restore stashed memory config information from probe */ 337 WAIT_FIFO(p, 3); 338 pm2_WR(p, PM2R_MEM_CONTROL, p->mem_control); 339 pm2_WR(p, PM2R_BOOT_ADDRESS, p->boot_address); 340 wmb(); 341 pm2_WR(p, PM2R_MEM_CONFIG, p->mem_config); 342} 343 344static void reset_config(struct pm2fb_par *p) 345{ 346 WAIT_FIFO(p, 53); 347 pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG) & 348 ~(PM2F_VGA_ENABLE | PM2F_VGA_FIXED)); 349 pm2_WR(p, PM2R_BYPASS_WRITE_MASK, ~(0L)); 350 pm2_WR(p, PM2R_FRAMEBUFFER_WRITE_MASK, ~(0L)); 351 pm2_WR(p, PM2R_FIFO_CONTROL, 0); 352 pm2_WR(p, PM2R_APERTURE_ONE, 0); 353 pm2_WR(p, PM2R_APERTURE_TWO, 0); 354 pm2_WR(p, PM2R_RASTERIZER_MODE, 0); 355 pm2_WR(p, PM2R_DELTA_MODE, PM2F_DELTA_ORDER_RGB); 356 pm2_WR(p, PM2R_LB_READ_FORMAT, 0); 357 pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0); 358 pm2_WR(p, PM2R_LB_READ_MODE, 0); 359 pm2_WR(p, PM2R_LB_SOURCE_OFFSET, 0); 360 pm2_WR(p, PM2R_FB_SOURCE_OFFSET, 0); 361 pm2_WR(p, PM2R_FB_PIXEL_OFFSET, 0); 362 pm2_WR(p, PM2R_FB_WINDOW_BASE, 0); 363 pm2_WR(p, PM2R_LB_WINDOW_BASE, 0); 364 pm2_WR(p, PM2R_FB_SOFT_WRITE_MASK, ~(0L)); 365 pm2_WR(p, PM2R_FB_HARD_WRITE_MASK, ~(0L)); 366 pm2_WR(p, PM2R_FB_READ_PIXEL, 0); 367 pm2_WR(p, PM2R_DITHER_MODE, 0); 368 pm2_WR(p, PM2R_AREA_STIPPLE_MODE, 0); 369 pm2_WR(p, PM2R_DEPTH_MODE, 0); 370 pm2_WR(p, PM2R_STENCIL_MODE, 0); 371 pm2_WR(p, PM2R_TEXTURE_ADDRESS_MODE, 0); 372 pm2_WR(p, PM2R_TEXTURE_READ_MODE, 0); 373 pm2_WR(p, PM2R_TEXEL_LUT_MODE, 0); 374 pm2_WR(p, PM2R_YUV_MODE, 0); 375 pm2_WR(p, PM2R_COLOR_DDA_MODE, 0); 376 pm2_WR(p, PM2R_TEXTURE_COLOR_MODE, 0); 377 pm2_WR(p, PM2R_FOG_MODE, 0); 378 pm2_WR(p, PM2R_ALPHA_BLEND_MODE, 0); 379 pm2_WR(p, PM2R_LOGICAL_OP_MODE, 0); 380 pm2_WR(p, PM2R_STATISTICS_MODE, 0); 381 pm2_WR(p, PM2R_SCISSOR_MODE, 0); 382 pm2_WR(p, PM2R_FILTER_MODE, PM2F_SYNCHRONIZATION); 383 pm2_WR(p, PM2R_RD_PIXEL_MASK, 0xff); 384 switch (p->type) { 385 case PM2_TYPE_PERMEDIA2: 386 pm2_RDAC_WR(p, PM2I_RD_MODE_CONTROL, 0); /* no overlay */ 387 pm2_RDAC_WR(p, PM2I_RD_CURSOR_CONTROL, 0); 388 pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, PM2F_RD_PALETTE_WIDTH_8); 389 pm2_RDAC_WR(p, PM2I_RD_COLOR_KEY_CONTROL, 0); 390 pm2_RDAC_WR(p, PM2I_RD_OVERLAY_KEY, 0); 391 pm2_RDAC_WR(p, PM2I_RD_RED_KEY, 0); 392 pm2_RDAC_WR(p, PM2I_RD_GREEN_KEY, 0); 393 pm2_RDAC_WR(p, PM2I_RD_BLUE_KEY, 0); 394 break; 395 case PM2_TYPE_PERMEDIA2V: 396 pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); /* 8bit */ 397 break; 398 } 399} 400 401static void set_aperture(struct pm2fb_par *p, u32 depth) 402{ 403 /* 404 * The hardware is little-endian. When used in big-endian 405 * hosts, the on-chip aperture settings are used where 406 * possible to translate from host to card byte order. 407 */ 408 WAIT_FIFO(p, 2); 409#ifdef __LITTLE_ENDIAN 410 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD); 411#else 412 switch (depth) { 413 case 24: /* RGB->BGR */ 414 /* 415 * We can't use the aperture to translate host to 416 * card byte order here, so we switch to BGR mode 417 * in pm2fb_set_par(). 418 */ 419 case 8: /* B->B */ 420 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD); 421 break; 422 case 16: /* HL->LH */ 423 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_HALFWORDSWAP); 424 break; 425 case 32: /* RGBA->ABGR */ 426 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_BYTESWAP); 427 break; 428 } 429#endif 430 431 /* We don't use aperture two, so this may be superflous */ 432 pm2_WR(p, PM2R_APERTURE_TWO, PM2F_APERTURE_STANDARD); 433} 434 435static void set_color(struct pm2fb_par *p, unsigned char regno, 436 unsigned char r, unsigned char g, unsigned char b) 437{ 438 WAIT_FIFO(p, 4); 439 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, regno); 440 wmb(); 441 pm2_WR(p, PM2R_RD_PALETTE_DATA, r); 442 wmb(); 443 pm2_WR(p, PM2R_RD_PALETTE_DATA, g); 444 wmb(); 445 pm2_WR(p, PM2R_RD_PALETTE_DATA, b); 446} 447 448static void set_memclock(struct pm2fb_par *par, u32 clk) 449{ 450 int i; 451 unsigned char m, n, p; 452 453 switch (par->type) { 454 case PM2_TYPE_PERMEDIA2V: 455 pm2v_mnp(clk/2, &m, &n, &p); 456 WAIT_FIFO(par, 12); 457 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_MCLK_CONTROL >> 8); 458 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 0); 459 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_PRESCALE, m); 460 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_FEEDBACK, n); 461 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_POSTSCALE, p); 462 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 1); 463 rmb(); 464 for (i = 256; i; i--) 465 if (pm2v_RDAC_RD(par, PM2VI_RD_MCLK_CONTROL) & 2) 466 break; 467 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); 468 break; 469 case PM2_TYPE_PERMEDIA2: 470 pm2_mnp(clk, &m, &n, &p); 471 WAIT_FIFO(par, 10); 472 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6); 473 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m); 474 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n); 475 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p); 476 pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS); 477 rmb(); 478 for (i = 256; i; i--) 479 if (pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED) 480 break; 481 break; 482 } 483} 484 485static void set_pixclock(struct pm2fb_par *par, u32 clk) 486{ 487 int i; 488 unsigned char m, n, p; 489 490 switch (par->type) { 491 case PM2_TYPE_PERMEDIA2: 492 pm2_mnp(clk, &m, &n, &p); 493 WAIT_FIFO(par, 10); 494 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 0); 495 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A1, m); 496 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A2, n); 497 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 8|p); 498 pm2_RDAC_RD(par, PM2I_RD_PIXEL_CLOCK_STATUS); 499 rmb(); 500 for (i = 256; i; i--) 501 if (pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED) 502 break; 503 break; 504 case PM2_TYPE_PERMEDIA2V: 505 pm2v_mnp(clk/2, &m, &n, &p); 506 WAIT_FIFO(par, 8); 507 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CLK0_PRESCALE >> 8); 508 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_PRESCALE, m); 509 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_FEEDBACK, n); 510 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_POSTSCALE, p); 511 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); 512 break; 513 } 514} 515 516static void set_video(struct pm2fb_par *p, u32 video) 517{ 518 u32 tmp; 519 u32 vsync = video; 520 521 DPRINTK("video = 0x%x\n", video); 522 523 /* 524 * The hardware cursor needs +vsync to recognise vert retrace. 525 * We may not be using the hardware cursor, but the X Glint 526 * driver may well. So always set +hsync/+vsync and then set 527 * the RAMDAC to invert the sync if necessary. 528 */ 529 vsync &= ~(PM2F_HSYNC_MASK | PM2F_VSYNC_MASK); 530 vsync |= PM2F_HSYNC_ACT_HIGH | PM2F_VSYNC_ACT_HIGH; 531 532 WAIT_FIFO(p, 3); 533 pm2_WR(p, PM2R_VIDEO_CONTROL, vsync); 534 535 switch (p->type) { 536 case PM2_TYPE_PERMEDIA2: 537 tmp = PM2F_RD_PALETTE_WIDTH_8; 538 if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW) 539 tmp |= 4; /* invert hsync */ 540 if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW) 541 tmp |= 8; /* invert vsync */ 542 pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, tmp); 543 break; 544 case PM2_TYPE_PERMEDIA2V: 545 tmp = 0; 546 if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW) 547 tmp |= 1; /* invert hsync */ 548 if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW) 549 tmp |= 4; /* invert vsync */ 550 pm2v_RDAC_WR(p, PM2VI_RD_SYNC_CONTROL, tmp); 551 break; 552 } 553} 554 555/* 556 * pm2fb_check_var - Optional function. Validates a var passed in. 557 * @var: frame buffer variable screen structure 558 * @info: frame buffer structure that represents a single frame buffer 559 * 560 * Checks to see if the hardware supports the state requested by 561 * var passed in. 562 * 563 * Returns negative errno on error, or zero on success. 564 */ 565static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 566{ 567 u32 lpitch; 568 569 if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 && 570 var->bits_per_pixel != 24 && var->bits_per_pixel != 32) { 571 DPRINTK("depth not supported: %u\n", var->bits_per_pixel); 572 return -EINVAL; 573 } 574 575 if (var->xres != var->xres_virtual) { 576 DPRINTK("virtual x resolution != " 577 "physical x resolution not supported\n"); 578 return -EINVAL; 579 } 580 581 if (var->yres > var->yres_virtual) { 582 DPRINTK("virtual y resolution < " 583 "physical y resolution not possible\n"); 584 return -EINVAL; 585 } 586 587 /* permedia cannot blit over 2048 */ 588 if (var->yres_virtual > 2047) { 589 var->yres_virtual = 2047; 590 } 591 592 if (var->xoffset) { 593 DPRINTK("xoffset not supported\n"); 594 return -EINVAL; 595 } 596 597 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) { 598 DPRINTK("interlace not supported\n"); 599 return -EINVAL; 600 } 601 602 var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */ 603 lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3); 604 605 if (var->xres < 320 || var->xres > 1600) { 606 DPRINTK("width not supported: %u\n", var->xres); 607 return -EINVAL; 608 } 609 610 if (var->yres < 200 || var->yres > 1200) { 611 DPRINTK("height not supported: %u\n", var->yres); 612 return -EINVAL; 613 } 614 615 if (lpitch * var->yres_virtual > info->fix.smem_len) { 616 DPRINTK("no memory for screen (%ux%ux%u)\n", 617 var->xres, var->yres_virtual, var->bits_per_pixel); 618 return -EINVAL; 619 } 620 621 if (!var->pixclock) { 622 DPRINTK("pixclock is zero\n"); 623 return -EINVAL; 624 } 625 626 if (PICOS2KHZ(var->pixclock) > PM2_MAX_PIXCLOCK) { 627 DPRINTK("pixclock too high (%ldKHz)\n", 628 PICOS2KHZ(var->pixclock)); 629 return -EINVAL; 630 } 631 632 var->transp.offset = 0; 633 var->transp.length = 0; 634 switch (var->bits_per_pixel) { 635 case 8: 636 var->red.length = 8; 637 var->green.length = 8; 638 var->blue.length = 8; 639 break; 640 case 16: 641 var->red.offset = 11; 642 var->red.length = 5; 643 var->green.offset = 5; 644 var->green.length = 6; 645 var->blue.offset = 0; 646 var->blue.length = 5; 647 break; 648 case 32: 649 var->transp.offset = 24; 650 var->transp.length = 8; 651 var->red.offset = 16; 652 var->green.offset = 8; 653 var->blue.offset = 0; 654 var->red.length = 8; 655 var->green.length = 8; 656 var->blue.length = 8; 657 break; 658 case 24: 659#ifdef __BIG_ENDIAN 660 var->red.offset = 0; 661 var->blue.offset = 16; 662#else 663 var->red.offset = 16; 664 var->blue.offset = 0; 665#endif 666 var->green.offset = 8; 667 var->red.length = 8; 668 var->green.length = 8; 669 var->blue.length = 8; 670 break; 671 } 672 var->height = -1; 673 var->width = -1; 674 675 var->accel_flags = 0; /* Can't mmap if this is on */ 676 677 DPRINTK("Checking graphics mode at %dx%d depth %d\n", 678 var->xres, var->yres, var->bits_per_pixel); 679 return 0; 680} 681 682/** 683 * pm2fb_set_par - Alters the hardware state. 684 * @info: frame buffer structure that represents a single frame buffer 685 * 686 * Using the fb_var_screeninfo in fb_info we set the resolution of the 687 * this particular framebuffer. 688 */ 689static int pm2fb_set_par(struct fb_info *info) 690{ 691 struct pm2fb_par *par = info->par; 692 u32 pixclock; 693 u32 width = (info->var.xres_virtual + 7) & ~7; 694 u32 height = info->var.yres_virtual; 695 u32 depth = (info->var.bits_per_pixel + 7) & ~7; 696 u32 hsstart, hsend, hbend, htotal; 697 u32 vsstart, vsend, vbend, vtotal; 698 u32 stride; 699 u32 base; 700 u32 video = 0; 701 u32 clrmode = PM2F_RD_COLOR_MODE_RGB | PM2F_RD_GUI_ACTIVE; 702 u32 txtmap = 0; 703 u32 pixsize = 0; 704 u32 clrformat = 0; 705 u32 misc = 1; /* 8-bit DAC */ 706 u32 xres = (info->var.xres + 31) & ~31; 707 int data64; 708 709 reset_card(par); 710 reset_config(par); 711 clear_palette(par); 712 if (par->memclock) 713 set_memclock(par, par->memclock); 714 715 depth = (depth > 32) ? 32 : depth; 716 data64 = depth > 8 || par->type == PM2_TYPE_PERMEDIA2V; 717 718 pixclock = PICOS2KHZ(info->var.pixclock); 719 if (pixclock > PM2_MAX_PIXCLOCK) { 720 DPRINTK("pixclock too high (%uKHz)\n", pixclock); 721 return -EINVAL; 722 } 723 724 hsstart = to3264(info->var.right_margin, depth, data64); 725 hsend = hsstart + to3264(info->var.hsync_len, depth, data64); 726 hbend = hsend + to3264(info->var.left_margin, depth, data64); 727 htotal = to3264(xres, depth, data64) + hbend - 1; 728 vsstart = (info->var.lower_margin) 729 ? info->var.lower_margin - 1 730 : 0; /* FIXME! */ 731 vsend = info->var.lower_margin + info->var.vsync_len - 1; 732 vbend = info->var.lower_margin + info->var.vsync_len + 733 info->var.upper_margin; 734 vtotal = info->var.yres + vbend - 1; 735 stride = to3264(width, depth, 1); 736 base = to3264(info->var.yoffset * xres + info->var.xoffset, depth, 1); 737 if (data64) 738 video |= PM2F_DATA_64_ENABLE; 739 740 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) { 741 if (lowhsync) { 742 DPRINTK("ignoring +hsync, using -hsync.\n"); 743 video |= PM2F_HSYNC_ACT_LOW; 744 } else 745 video |= PM2F_HSYNC_ACT_HIGH; 746 } else 747 video |= PM2F_HSYNC_ACT_LOW; 748 749 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) { 750 if (lowvsync) { 751 DPRINTK("ignoring +vsync, using -vsync.\n"); 752 video |= PM2F_VSYNC_ACT_LOW; 753 } else 754 video |= PM2F_VSYNC_ACT_HIGH; 755 } else 756 video |= PM2F_VSYNC_ACT_LOW; 757 758 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) { 759 DPRINTK("interlaced not supported\n"); 760 return -EINVAL; 761 } 762 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) 763 video |= PM2F_LINE_DOUBLE; 764 if ((info->var.activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) 765 video |= PM2F_VIDEO_ENABLE; 766 par->video = video; 767 768 info->fix.visual = 769 (depth == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; 770 info->fix.line_length = info->var.xres * depth / 8; 771 info->cmap.len = 256; 772 773 /* 774 * Settings calculated. Now write them out. 775 */ 776 if (par->type == PM2_TYPE_PERMEDIA2V) { 777 WAIT_FIFO(par, 1); 778 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); 779 } 780 781 set_aperture(par, depth); 782 783 mb(); 784 WAIT_FIFO(par, 19); 785 switch (depth) { 786 case 8: 787 pm2_WR(par, PM2R_FB_READ_PIXEL, 0); 788 clrformat = 0x2e; 789 break; 790 case 16: 791 pm2_WR(par, PM2R_FB_READ_PIXEL, 1); 792 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB565; 793 txtmap = PM2F_TEXTEL_SIZE_16; 794 pixsize = 1; 795 clrformat = 0x70; 796 misc |= 8; 797 break; 798 case 32: 799 pm2_WR(par, PM2R_FB_READ_PIXEL, 2); 800 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGBA8888; 801 txtmap = PM2F_TEXTEL_SIZE_32; 802 pixsize = 2; 803 clrformat = 0x20; 804 misc |= 8; 805 break; 806 case 24: 807 pm2_WR(par, PM2R_FB_READ_PIXEL, 4); 808 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB888; 809 txtmap = PM2F_TEXTEL_SIZE_24; 810 pixsize = 4; 811 clrformat = 0x20; 812 misc |= 8; 813 break; 814 } 815 pm2_WR(par, PM2R_FB_WRITE_MODE, PM2F_FB_WRITE_ENABLE); 816 pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres)); 817 pm2_WR(par, PM2R_LB_READ_MODE, partprod(xres)); 818 pm2_WR(par, PM2R_TEXTURE_MAP_FORMAT, txtmap | partprod(xres)); 819 pm2_WR(par, PM2R_H_TOTAL, htotal); 820 pm2_WR(par, PM2R_HS_START, hsstart); 821 pm2_WR(par, PM2R_HS_END, hsend); 822 pm2_WR(par, PM2R_HG_END, hbend); 823 pm2_WR(par, PM2R_HB_END, hbend); 824 pm2_WR(par, PM2R_V_TOTAL, vtotal); 825 pm2_WR(par, PM2R_VS_START, vsstart); 826 pm2_WR(par, PM2R_VS_END, vsend); 827 pm2_WR(par, PM2R_VB_END, vbend); 828 pm2_WR(par, PM2R_SCREEN_STRIDE, stride); 829 wmb(); 830 pm2_WR(par, PM2R_WINDOW_ORIGIN, 0); 831 pm2_WR(par, PM2R_SCREEN_SIZE, (height << 16) | width); 832 pm2_WR(par, PM2R_SCISSOR_MODE, PM2F_SCREEN_SCISSOR_ENABLE); 833 wmb(); 834 pm2_WR(par, PM2R_SCREEN_BASE, base); 835 wmb(); 836 set_video(par, video); 837 WAIT_FIFO(par, 10); 838 switch (par->type) { 839 case PM2_TYPE_PERMEDIA2: 840 pm2_RDAC_WR(par, PM2I_RD_COLOR_MODE, clrmode); 841 pm2_RDAC_WR(par, PM2I_RD_COLOR_KEY_CONTROL, 842 (depth == 8) ? 0 : PM2F_COLOR_KEY_TEST_OFF); 843 break; 844 case PM2_TYPE_PERMEDIA2V: 845 pm2v_RDAC_WR(par, PM2VI_RD_DAC_CONTROL, 0); 846 pm2v_RDAC_WR(par, PM2VI_RD_PIXEL_SIZE, pixsize); 847 pm2v_RDAC_WR(par, PM2VI_RD_COLOR_FORMAT, clrformat); 848 pm2v_RDAC_WR(par, PM2VI_RD_MISC_CONTROL, misc); 849 pm2v_RDAC_WR(par, PM2VI_RD_OVERLAY_KEY, 0); 850 break; 851 } 852 set_pixclock(par, pixclock); 853 DPRINTK("Setting graphics mode at %dx%d depth %d\n", 854 info->var.xres, info->var.yres, info->var.bits_per_pixel); 855 return 0; 856} 857 858/** 859 * pm2fb_setcolreg - Sets a color register. 860 * @regno: boolean, 0 copy local, 1 get_user() function 861 * @red: frame buffer colormap structure 862 * @green: The green value which can be up to 16 bits wide 863 * @blue: The blue value which can be up to 16 bits wide. 864 * @transp: If supported the alpha value which can be up to 16 bits wide. 865 * @info: frame buffer info structure 866 * 867 * Set a single color register. The values supplied have a 16 bit 868 * magnitude which needs to be scaled in this function for the hardware. 869 * Pretty much a direct lift from tdfxfb.c. 870 * 871 * Returns negative errno on error, or zero on success. 872 */ 873static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green, 874 unsigned blue, unsigned transp, 875 struct fb_info *info) 876{ 877 struct pm2fb_par *par = info->par; 878 879 if (regno >= info->cmap.len) /* no. of hw registers */ 880 return -EINVAL; 881 /* 882 * Program hardware... do anything you want with transp 883 */ 884 885 /* grayscale works only partially under directcolor */ 886 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ 887 if (info->var.grayscale) 888 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; 889 890 /* Directcolor: 891 * var->{color}.offset contains start of bitfield 892 * var->{color}.length contains length of bitfield 893 * {hardwarespecific} contains width of DAC 894 * cmap[X] is programmed to 895 * (X << red.offset) | (X << green.offset) | (X << blue.offset) 896 * RAMDAC[X] is programmed to (red, green, blue) 897 * 898 * Pseudocolor: 899 * uses offset = 0 && length = DAC register width. 900 * var->{color}.offset is 0 901 * var->{color}.length contains width of DAC 902 * cmap is not used 903 * DAC[X] is programmed to (red, green, blue) 904 * Truecolor: 905 * does not use RAMDAC (usually has 3 of them). 906 * var->{color}.offset contains start of bitfield 907 * var->{color}.length contains length of bitfield 908 * cmap is programmed to 909 * (red << red.offset) | (green << green.offset) | 910 * (blue << blue.offset) | (transp << transp.offset) 911 * RAMDAC does not exist 912 */ 913#define CNVT_TOHW(val, width) ((((val) << (width)) + 0x7FFF -(val)) >> 16) 914 switch (info->fix.visual) { 915 case FB_VISUAL_TRUECOLOR: 916 case FB_VISUAL_PSEUDOCOLOR: 917 red = CNVT_TOHW(red, info->var.red.length); 918 green = CNVT_TOHW(green, info->var.green.length); 919 blue = CNVT_TOHW(blue, info->var.blue.length); 920 transp = CNVT_TOHW(transp, info->var.transp.length); 921 break; 922 case FB_VISUAL_DIRECTCOLOR: 923 /* example here assumes 8 bit DAC. Might be different 924 * for your hardware */ 925 red = CNVT_TOHW(red, 8); 926 green = CNVT_TOHW(green, 8); 927 blue = CNVT_TOHW(blue, 8); 928 /* hey, there is bug in transp handling... */ 929 transp = CNVT_TOHW(transp, 8); 930 break; 931 } 932#undef CNVT_TOHW 933 /* Truecolor has hardware independent palette */ 934 if (info->fix.visual == FB_VISUAL_TRUECOLOR) { 935 u32 v; 936 937 if (regno >= 16) 938 return -EINVAL; 939 940 v = (red << info->var.red.offset) | 941 (green << info->var.green.offset) | 942 (blue << info->var.blue.offset) | 943 (transp << info->var.transp.offset); 944 945 switch (info->var.bits_per_pixel) { 946 case 8: 947 break; 948 case 16: 949 case 24: 950 case 32: 951 par->palette[regno] = v; 952 break; 953 } 954 return 0; 955 } else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) 956 set_color(par, regno, red, green, blue); 957 958 return 0; 959} 960 961/** 962 * pm2fb_pan_display - Pans the display. 963 * @var: frame buffer variable screen structure 964 * @info: frame buffer structure that represents a single frame buffer 965 * 966 * Pan (or wrap, depending on the `vmode' field) the display using the 967 * `xoffset' and `yoffset' fields of the `var' structure. 968 * If the values don't fit, return -EINVAL. 969 * 970 * Returns negative errno on error, or zero on success. 971 * 972 */ 973static int pm2fb_pan_display(struct fb_var_screeninfo *var, 974 struct fb_info *info) 975{ 976 struct pm2fb_par *p = info->par; 977 u32 base; 978 u32 depth = (info->var.bits_per_pixel + 7) & ~7; 979 u32 xres = (info->var.xres + 31) & ~31; 980 981 depth = (depth > 32) ? 32 : depth; 982 base = to3264(var->yoffset * xres + var->xoffset, depth, 1); 983 WAIT_FIFO(p, 1); 984 pm2_WR(p, PM2R_SCREEN_BASE, base); 985 return 0; 986} 987 988/** 989 * pm2fb_blank - Blanks the display. 990 * @blank_mode: the blank mode we want. 991 * @info: frame buffer structure that represents a single frame buffer 992 * 993 * Blank the screen if blank_mode != 0, else unblank. Return 0 if 994 * blanking succeeded, != 0 if un-/blanking failed due to e.g. a 995 * video mode which doesn't support it. Implements VESA suspend 996 * and powerdown modes on hardware that supports disabling hsync/vsync: 997 * blank_mode == 2: suspend vsync 998 * blank_mode == 3: suspend hsync 999 * blank_mode == 4: powerdown 1000 * 1001 * Returns negative errno on error, or zero on success. 1002 * 1003 */ 1004static int pm2fb_blank(int blank_mode, struct fb_info *info) 1005{ 1006 struct pm2fb_par *par = info->par; 1007 u32 video = par->video; 1008 1009 DPRINTK("blank_mode %d\n", blank_mode); 1010 1011 switch (blank_mode) { 1012 case FB_BLANK_UNBLANK: 1013 /* Screen: On */ 1014 video |= PM2F_VIDEO_ENABLE; 1015 break; 1016 case FB_BLANK_NORMAL: 1017 /* Screen: Off */ 1018 video &= ~PM2F_VIDEO_ENABLE; 1019 break; 1020 case FB_BLANK_VSYNC_SUSPEND: 1021 /* VSync: Off */ 1022 video &= ~(PM2F_VSYNC_MASK | PM2F_BLANK_LOW); 1023 break; 1024 case FB_BLANK_HSYNC_SUSPEND: 1025 /* HSync: Off */ 1026 video &= ~(PM2F_HSYNC_MASK | PM2F_BLANK_LOW); 1027 break; 1028 case FB_BLANK_POWERDOWN: 1029 /* HSync: Off, VSync: Off */ 1030 video &= ~(PM2F_VSYNC_MASK | PM2F_HSYNC_MASK | PM2F_BLANK_LOW); 1031 break; 1032 } 1033 set_video(par, video); 1034 return 0; 1035} 1036 1037static int pm2fb_sync(struct fb_info *info) 1038{ 1039 struct pm2fb_par *par = info->par; 1040 1041 WAIT_FIFO(par, 1); 1042 pm2_WR(par, PM2R_SYNC, 0); 1043 mb(); 1044 do { 1045 while (pm2_RD(par, PM2R_OUT_FIFO_WORDS) == 0) 1046 cpu_relax(); 1047 } while (pm2_RD(par, PM2R_OUT_FIFO) != PM2TAG(PM2R_SYNC)); 1048 1049 return 0; 1050} 1051 1052static void pm2fb_fillrect(struct fb_info *info, 1053 const struct fb_fillrect *region) 1054{ 1055 struct pm2fb_par *par = info->par; 1056 struct fb_fillrect modded; 1057 int vxres, vyres; 1058 u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ? 1059 ((u32 *)info->pseudo_palette)[region->color] : region->color; 1060 1061 if (info->state != FBINFO_STATE_RUNNING) 1062 return; 1063 if ((info->flags & FBINFO_HWACCEL_DISABLED) || 1064 region->rop != ROP_COPY ) { 1065 cfb_fillrect(info, region); 1066 return; 1067 } 1068 1069 vxres = info->var.xres_virtual; 1070 vyres = info->var.yres_virtual; 1071 1072 memcpy(&modded, region, sizeof(struct fb_fillrect)); 1073 1074 if (!modded.width || !modded.height || 1075 modded.dx >= vxres || modded.dy >= vyres) 1076 return; 1077 1078 if (modded.dx + modded.width > vxres) 1079 modded.width = vxres - modded.dx; 1080 if (modded.dy + modded.height > vyres) 1081 modded.height = vyres - modded.dy; 1082 1083 if (info->var.bits_per_pixel == 8) 1084 color |= color << 8; 1085 if (info->var.bits_per_pixel <= 16) 1086 color |= color << 16; 1087 1088 WAIT_FIFO(par, 3); 1089 pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE); 1090 pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (modded.dy << 16) | modded.dx); 1091 pm2_WR(par, PM2R_RECTANGLE_SIZE, (modded.height << 16) | modded.width); 1092 if (info->var.bits_per_pixel != 24) { 1093 WAIT_FIFO(par, 2); 1094 pm2_WR(par, PM2R_FB_BLOCK_COLOR, color); 1095 wmb(); 1096 pm2_WR(par, PM2R_RENDER, 1097 PM2F_RENDER_RECTANGLE | PM2F_RENDER_FASTFILL); 1098 } else { 1099 WAIT_FIFO(par, 4); 1100 pm2_WR(par, PM2R_COLOR_DDA_MODE, 1); 1101 pm2_WR(par, PM2R_CONSTANT_COLOR, color); 1102 wmb(); 1103 pm2_WR(par, PM2R_RENDER, 1104 PM2F_RENDER_RECTANGLE | 1105 PM2F_INCREASE_X | PM2F_INCREASE_Y ); 1106 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0); 1107 } 1108} 1109 1110static void pm2fb_copyarea(struct fb_info *info, 1111 const struct fb_copyarea *area) 1112{ 1113 struct pm2fb_par *par = info->par; 1114 struct fb_copyarea modded; 1115 u32 vxres, vyres; 1116 1117 if (info->state != FBINFO_STATE_RUNNING) 1118 return; 1119 if (info->flags & FBINFO_HWACCEL_DISABLED) { 1120 cfb_copyarea(info, area); 1121 return; 1122 } 1123 1124 memcpy(&modded, area, sizeof(struct fb_copyarea)); 1125 1126 vxres = info->var.xres_virtual; 1127 vyres = info->var.yres_virtual; 1128 1129 if (!modded.width || !modded.height || 1130 modded.sx >= vxres || modded.sy >= vyres || 1131 modded.dx >= vxres || modded.dy >= vyres) 1132 return; 1133 1134 if (modded.sx + modded.width > vxres) 1135 modded.width = vxres - modded.sx; 1136 if (modded.dx + modded.width > vxres) 1137 modded.width = vxres - modded.dx; 1138 if (modded.sy + modded.height > vyres) 1139 modded.height = vyres - modded.sy; 1140 if (modded.dy + modded.height > vyres) 1141 modded.height = vyres - modded.dy; 1142 1143 WAIT_FIFO(par, 5); 1144 pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE | 1145 PM2F_CONFIG_FB_READ_SOURCE_ENABLE); 1146 pm2_WR(par, PM2R_FB_SOURCE_DELTA, 1147 ((modded.sy - modded.dy) & 0xfff) << 16 | 1148 ((modded.sx - modded.dx) & 0xfff)); 1149 pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (modded.dy << 16) | modded.dx); 1150 pm2_WR(par, PM2R_RECTANGLE_SIZE, (modded.height << 16) | modded.width); 1151 wmb(); 1152 pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE | 1153 (modded.dx < modded.sx ? PM2F_INCREASE_X : 0) | 1154 (modded.dy < modded.sy ? PM2F_INCREASE_Y : 0)); 1155} 1156 1157static void pm2fb_imageblit(struct fb_info *info, const struct fb_image *image) 1158{ 1159 struct pm2fb_par *par = info->par; 1160 u32 height = image->height; 1161 u32 fgx, bgx; 1162 const u32 *src = (const u32 *)image->data; 1163 u32 xres = (info->var.xres + 31) & ~31; 1164 int raster_mode = 1; /* invert bits */ 1165 1166#ifdef __LITTLE_ENDIAN 1167 raster_mode |= 3 << 7; /* reverse byte order */ 1168#endif 1169 1170 if (info->state != FBINFO_STATE_RUNNING) 1171 return; 1172 if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1) { 1173 cfb_imageblit(info, image); 1174 return; 1175 } 1176 switch (info->fix.visual) { 1177 case FB_VISUAL_PSEUDOCOLOR: 1178 fgx = image->fg_color; 1179 bgx = image->bg_color; 1180 break; 1181 case FB_VISUAL_TRUECOLOR: 1182 default: 1183 fgx = par->palette[image->fg_color]; 1184 bgx = par->palette[image->bg_color]; 1185 break; 1186 } 1187 if (info->var.bits_per_pixel == 8) { 1188 fgx |= fgx << 8; 1189 bgx |= bgx << 8; 1190 } 1191 if (info->var.bits_per_pixel <= 16) { 1192 fgx |= fgx << 16; 1193 bgx |= bgx << 16; 1194 } 1195 1196 WAIT_FIFO(par, 13); 1197 pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres)); 1198 pm2_WR(par, PM2R_SCISSOR_MIN_XY, 1199 ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff)); 1200 pm2_WR(par, PM2R_SCISSOR_MAX_XY, 1201 (((image->dy + image->height) & 0x0fff) << 16) | 1202 ((image->dx + image->width) & 0x0fff)); 1203 pm2_WR(par, PM2R_SCISSOR_MODE, 1); 1204 /* GXcopy & UNIT_ENABLE */ 1205 pm2_WR(par, PM2R_LOGICAL_OP_MODE, (0x3 << 1) | 1); 1206 pm2_WR(par, PM2R_RECTANGLE_ORIGIN, 1207 ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff)); 1208 pm2_WR(par, PM2R_RECTANGLE_SIZE, 1209 ((image->height & 0x0fff) << 16) | 1210 ((image->width) & 0x0fff)); 1211 if (info->var.bits_per_pixel == 24) { 1212 pm2_WR(par, PM2R_COLOR_DDA_MODE, 1); 1213 /* clear area */ 1214 pm2_WR(par, PM2R_CONSTANT_COLOR, bgx); 1215 pm2_WR(par, PM2R_RENDER, 1216 PM2F_RENDER_RECTANGLE | 1217 PM2F_INCREASE_X | PM2F_INCREASE_Y); 1218 /* BitMapPackEachScanline */ 1219 pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode | (1 << 9)); 1220 pm2_WR(par, PM2R_CONSTANT_COLOR, fgx); 1221 pm2_WR(par, PM2R_RENDER, 1222 PM2F_RENDER_RECTANGLE | 1223 PM2F_INCREASE_X | PM2F_INCREASE_Y | 1224 PM2F_RENDER_SYNC_ON_BIT_MASK); 1225 } else { 1226 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0); 1227 /* clear area */ 1228 pm2_WR(par, PM2R_FB_BLOCK_COLOR, bgx); 1229 pm2_WR(par, PM2R_RENDER, 1230 PM2F_RENDER_RECTANGLE | 1231 PM2F_RENDER_FASTFILL | 1232 PM2F_INCREASE_X | PM2F_INCREASE_Y); 1233 pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode); 1234 pm2_WR(par, PM2R_FB_BLOCK_COLOR, fgx); 1235 pm2_WR(par, PM2R_RENDER, 1236 PM2F_RENDER_RECTANGLE | 1237 PM2F_INCREASE_X | PM2F_INCREASE_Y | 1238 PM2F_RENDER_FASTFILL | 1239 PM2F_RENDER_SYNC_ON_BIT_MASK); 1240 } 1241 1242 while (height--) { 1243 int width = ((image->width + 7) >> 3) 1244 + info->pixmap.scan_align - 1; 1245 width >>= 2; 1246 WAIT_FIFO(par, width); 1247 while (width--) { 1248 pm2_WR(par, PM2R_BIT_MASK_PATTERN, *src); 1249 src++; 1250 } 1251 } 1252 WAIT_FIFO(par, 3); 1253 pm2_WR(par, PM2R_RASTERIZER_MODE, 0); 1254 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0); 1255 pm2_WR(par, PM2R_SCISSOR_MODE, 0); 1256} 1257 1258/* 1259 * Hardware cursor support. 1260 */ 1261static const u8 cursor_bits_lookup[16] = { 1262 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54, 1263 0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55 1264}; 1265 1266static int pm2vfb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1267{ 1268 struct pm2fb_par *par = info->par; 1269 u8 mode = PM2F_CURSORMODE_TYPE_X; 1270 int x = cursor->image.dx - info->var.xoffset; 1271 int y = cursor->image.dy - info->var.yoffset; 1272 1273 if (cursor->enable) 1274 mode |= PM2F_CURSORMODE_CURSOR_ENABLE; 1275 1276 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_MODE, mode); 1277 1278 if (!cursor->enable) 1279 x = 2047; /* push it outside display */ 1280 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_LOW, x & 0xff); 1281 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0xf); 1282 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_LOW, y & 0xff); 1283 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HIGH, (y >> 8) & 0xf); 1284 1285 /* 1286 * If the cursor is not be changed this means either we want the 1287 * current cursor state (if enable is set) or we want to query what 1288 * we can do with the cursor (if enable is not set) 1289 */ 1290 if (!cursor->set) 1291 return 0; 1292 1293 if (cursor->set & FB_CUR_SETHOT) { 1294 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HOT, 1295 cursor->hot.x & 0x3f); 1296 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HOT, 1297 cursor->hot.y & 0x3f); 1298 } 1299 1300 if (cursor->set & FB_CUR_SETCMAP) { 1301 u32 fg_idx = cursor->image.fg_color; 1302 u32 bg_idx = cursor->image.bg_color; 1303 struct fb_cmap cmap = info->cmap; 1304 1305 /* the X11 driver says one should use these color registers */ 1306 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CURSOR_PALETTE >> 8); 1307 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 0, 1308 cmap.red[bg_idx] >> 8 ); 1309 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 1, 1310 cmap.green[bg_idx] >> 8 ); 1311 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 2, 1312 cmap.blue[bg_idx] >> 8 ); 1313 1314 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 3, 1315 cmap.red[fg_idx] >> 8 ); 1316 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 4, 1317 cmap.green[fg_idx] >> 8 ); 1318 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 5, 1319 cmap.blue[fg_idx] >> 8 ); 1320 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); 1321 } 1322 1323 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 1324 u8 *bitmap = (u8 *)cursor->image.data; 1325 u8 *mask = (u8 *)cursor->mask; 1326 int i; 1327 int pos = PM2VI_RD_CURSOR_PATTERN; 1328 1329 for (i = 0; i < cursor->image.height; i++) { 1330 int j = (cursor->image.width + 7) >> 3; 1331 int k = 8 - j; 1332 1333 pm2_WR(par, PM2VR_RD_INDEX_HIGH, pos >> 8); 1334 1335 for (; j > 0; j--) { 1336 u8 data = *bitmap ^ *mask; 1337 1338 if (cursor->rop == ROP_COPY) 1339 data = *mask & *bitmap; 1340 /* Upper 4 bits of bitmap data */ 1341 pm2v_RDAC_WR(par, pos++, 1342 cursor_bits_lookup[data >> 4] | 1343 (cursor_bits_lookup[*mask >> 4] << 1)); 1344 /* Lower 4 bits of bitmap */ 1345 pm2v_RDAC_WR(par, pos++, 1346 cursor_bits_lookup[data & 0xf] | 1347 (cursor_bits_lookup[*mask & 0xf] << 1)); 1348 bitmap++; 1349 mask++; 1350 } 1351 for (; k > 0; k--) { 1352 pm2v_RDAC_WR(par, pos++, 0); 1353 pm2v_RDAC_WR(par, pos++, 0); 1354 } 1355 } 1356 1357 while (pos < (1024 + PM2VI_RD_CURSOR_PATTERN)) { 1358 pm2_WR(par, PM2VR_RD_INDEX_HIGH, pos >> 8); 1359 pm2v_RDAC_WR(par, pos++, 0); 1360 } 1361 1362 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); 1363 } 1364 return 0; 1365} 1366 1367static int pm2fb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1368{ 1369 struct pm2fb_par *par = info->par; 1370 u8 mode; 1371 1372 if (!hwcursor) 1373 return -EINVAL; /* just to force soft_cursor() call */ 1374 1375 /* Too large of a cursor or wrong bpp :-( */ 1376 if (cursor->image.width > 64 || 1377 cursor->image.height > 64 || 1378 cursor->image.depth > 1) 1379 return -EINVAL; 1380 1381 if (par->type == PM2_TYPE_PERMEDIA2V) 1382 return pm2vfb_cursor(info, cursor); 1383 1384 mode = 0x40; 1385 if (cursor->enable) 1386 mode = 0x43; 1387 1388 pm2_RDAC_WR(par, PM2I_RD_CURSOR_CONTROL, mode); 1389 1390 /* 1391 * If the cursor is not be changed this means either we want the 1392 * current cursor state (if enable is set) or we want to query what 1393 * we can do with the cursor (if enable is not set) 1394 */ 1395 if (!cursor->set) 1396 return 0; 1397 1398 if (cursor->set & FB_CUR_SETPOS) { 1399 int x = cursor->image.dx - info->var.xoffset + 63; 1400 int y = cursor->image.dy - info->var.yoffset + 63; 1401 1402 WAIT_FIFO(par, 4); 1403 pm2_WR(par, PM2R_RD_CURSOR_X_LSB, x & 0xff); 1404 pm2_WR(par, PM2R_RD_CURSOR_X_MSB, (x >> 8) & 0x7); 1405 pm2_WR(par, PM2R_RD_CURSOR_Y_LSB, y & 0xff); 1406 pm2_WR(par, PM2R_RD_CURSOR_Y_MSB, (y >> 8) & 0x7); 1407 } 1408 1409 if (cursor->set & FB_CUR_SETCMAP) { 1410 u32 fg_idx = cursor->image.fg_color; 1411 u32 bg_idx = cursor->image.bg_color; 1412 1413 WAIT_FIFO(par, 7); 1414 pm2_WR(par, PM2R_RD_CURSOR_COLOR_ADDRESS, 1); 1415 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, 1416 info->cmap.red[bg_idx] >> 8); 1417 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, 1418 info->cmap.green[bg_idx] >> 8); 1419 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, 1420 info->cmap.blue[bg_idx] >> 8); 1421 1422 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, 1423 info->cmap.red[fg_idx] >> 8); 1424 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, 1425 info->cmap.green[fg_idx] >> 8); 1426 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, 1427 info->cmap.blue[fg_idx] >> 8); 1428 } 1429 1430 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 1431 u8 *bitmap = (u8 *)cursor->image.data; 1432 u8 *mask = (u8 *)cursor->mask; 1433 int i; 1434 1435 WAIT_FIFO(par, 1); 1436 pm2_WR(par, PM2R_RD_PALETTE_WRITE_ADDRESS, 0); 1437 1438 for (i = 0; i < cursor->image.height; i++) { 1439 int j = (cursor->image.width + 7) >> 3; 1440 int k = 8 - j; 1441 1442 WAIT_FIFO(par, 8); 1443 for (; j > 0; j--) { 1444 u8 data = *bitmap ^ *mask; 1445 1446 if (cursor->rop == ROP_COPY) 1447 data = *mask & *bitmap; 1448 /* bitmap data */ 1449 pm2_WR(par, PM2R_RD_CURSOR_DATA, data); 1450 bitmap++; 1451 mask++; 1452 } 1453 for (; k > 0; k--) 1454 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0); 1455 } 1456 for (; i < 64; i++) { 1457 int j = 8; 1458 WAIT_FIFO(par, 8); 1459 while (j-- > 0) 1460 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0); 1461 } 1462 1463 mask = (u8 *)cursor->mask; 1464 for (i = 0; i < cursor->image.height; i++) { 1465 int j = (cursor->image.width + 7) >> 3; 1466 int k = 8 - j; 1467 1468 WAIT_FIFO(par, 8); 1469 for (; j > 0; j--) { 1470 /* mask */ 1471 pm2_WR(par, PM2R_RD_CURSOR_DATA, *mask); 1472 mask++; 1473 } 1474 for (; k > 0; k--) 1475 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0); 1476 } 1477 for (; i < 64; i++) { 1478 int j = 8; 1479 WAIT_FIFO(par, 8); 1480 while (j-- > 0) 1481 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0); 1482 } 1483 } 1484 return 0; 1485} 1486 1487/* ------------ Hardware Independent Functions ------------ */ 1488 1489/* 1490 * Frame buffer operations 1491 */ 1492 1493static const struct fb_ops pm2fb_ops = { 1494 .owner = THIS_MODULE, 1495 __FB_DEFAULT_IOMEM_OPS_RDWR, 1496 .fb_check_var = pm2fb_check_var, 1497 .fb_set_par = pm2fb_set_par, 1498 .fb_setcolreg = pm2fb_setcolreg, 1499 .fb_blank = pm2fb_blank, 1500 .fb_pan_display = pm2fb_pan_display, 1501 .fb_fillrect = pm2fb_fillrect, 1502 .fb_copyarea = pm2fb_copyarea, 1503 .fb_imageblit = pm2fb_imageblit, 1504 .fb_sync = pm2fb_sync, 1505 .fb_cursor = pm2fb_cursor, 1506 __FB_DEFAULT_IOMEM_OPS_MMAP, 1507}; 1508 1509/* 1510 * PCI stuff 1511 */ 1512 1513 1514/** 1515 * pm2fb_probe - Initialise and allocate resource for PCI device. 1516 * 1517 * @pdev: PCI device. 1518 * @id: PCI device ID. 1519 */ 1520static int pm2fb_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1521{ 1522 struct pm2fb_par *default_par; 1523 struct fb_info *info; 1524 int err; 1525 int retval = -ENXIO; 1526 1527 err = aperture_remove_conflicting_pci_devices(pdev, "pm2fb"); 1528 if (err) 1529 return err; 1530 1531 err = pci_enable_device(pdev); 1532 if (err) { 1533 printk(KERN_WARNING "pm2fb: Can't enable pdev: %d\n", err); 1534 return err; 1535 } 1536 1537 info = framebuffer_alloc(sizeof(struct pm2fb_par), &pdev->dev); 1538 if (!info) { 1539 err = -ENOMEM; 1540 goto err_exit_disable; 1541 } 1542 default_par = info->par; 1543 1544 switch (pdev->device) { 1545 case PCI_DEVICE_ID_TI_TVP4020: 1546 strcpy(pm2fb_fix.id, "TVP4020"); 1547 default_par->type = PM2_TYPE_PERMEDIA2; 1548 break; 1549 case PCI_DEVICE_ID_3DLABS_PERMEDIA2: 1550 strcpy(pm2fb_fix.id, "Permedia2"); 1551 default_par->type = PM2_TYPE_PERMEDIA2; 1552 break; 1553 case PCI_DEVICE_ID_3DLABS_PERMEDIA2V: 1554 strcpy(pm2fb_fix.id, "Permedia2v"); 1555 default_par->type = PM2_TYPE_PERMEDIA2V; 1556 break; 1557 } 1558 1559 pm2fb_fix.mmio_start = pci_resource_start(pdev, 0); 1560 pm2fb_fix.mmio_len = PM2_REGS_SIZE; 1561 1562#if defined(__BIG_ENDIAN) 1563 /* 1564 * PM2 has a 64k register file, mapped twice in 128k. Lower 1565 * map is little-endian, upper map is big-endian. 1566 */ 1567 pm2fb_fix.mmio_start += PM2_REGS_SIZE; 1568 DPRINTK("Adjusting register base for big-endian.\n"); 1569#endif 1570 DPRINTK("Register base at 0x%lx\n", pm2fb_fix.mmio_start); 1571 1572 /* Registers - request region and map it. */ 1573 if (!request_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len, 1574 "pm2fb regbase")) { 1575 printk(KERN_WARNING "pm2fb: Can't reserve regbase.\n"); 1576 goto err_exit_neither; 1577 } 1578 default_par->v_regs = 1579 ioremap(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); 1580 if (!default_par->v_regs) { 1581 printk(KERN_WARNING "pm2fb: Can't remap %s register area.\n", 1582 pm2fb_fix.id); 1583 release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); 1584 goto err_exit_neither; 1585 } 1586 1587 /* Stash away memory register info for use when we reset the board */ 1588 default_par->mem_control = pm2_RD(default_par, PM2R_MEM_CONTROL); 1589 default_par->boot_address = pm2_RD(default_par, PM2R_BOOT_ADDRESS); 1590 default_par->mem_config = pm2_RD(default_par, PM2R_MEM_CONFIG); 1591 DPRINTK("MemControl 0x%x BootAddress 0x%x MemConfig 0x%x\n", 1592 default_par->mem_control, default_par->boot_address, 1593 default_par->mem_config); 1594 1595 if (default_par->mem_control == 0 && 1596 default_par->boot_address == 0x31 && 1597 default_par->mem_config == 0x259fffff) { 1598 default_par->memclock = CVPPC_MEMCLOCK; 1599 default_par->mem_control = 0; 1600 default_par->boot_address = 0x20; 1601 default_par->mem_config = 0xe6002021; 1602 if (pdev->subsystem_vendor == 0x1048 && 1603 pdev->subsystem_device == 0x0a31) { 1604 DPRINTK("subsystem_vendor: %04x, " 1605 "subsystem_device: %04x\n", 1606 pdev->subsystem_vendor, pdev->subsystem_device); 1607 DPRINTK("We have not been initialized by VGA BIOS and " 1608 "are running on an Elsa Winner 2000 Office\n"); 1609 DPRINTK("Initializing card timings manually...\n"); 1610 default_par->memclock = 100000; 1611 } 1612 if (pdev->subsystem_vendor == 0x3d3d && 1613 pdev->subsystem_device == 0x0100) { 1614 DPRINTK("subsystem_vendor: %04x, " 1615 "subsystem_device: %04x\n", 1616 pdev->subsystem_vendor, pdev->subsystem_device); 1617 DPRINTK("We have not been initialized by VGA BIOS and " 1618 "are running on an 3dlabs reference board\n"); 1619 DPRINTK("Initializing card timings manually...\n"); 1620 default_par->memclock = 74894; 1621 } 1622 } 1623 1624 /* Now work out how big lfb is going to be. */ 1625 switch (default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) { 1626 case PM2F_MEM_BANKS_1: 1627 pm2fb_fix.smem_len = 0x200000; 1628 break; 1629 case PM2F_MEM_BANKS_2: 1630 pm2fb_fix.smem_len = 0x400000; 1631 break; 1632 case PM2F_MEM_BANKS_3: 1633 pm2fb_fix.smem_len = 0x600000; 1634 break; 1635 case PM2F_MEM_BANKS_4: 1636 pm2fb_fix.smem_len = 0x800000; 1637 break; 1638 } 1639 pm2fb_fix.smem_start = pci_resource_start(pdev, 1); 1640 1641 /* Linear frame buffer - request region and map it. */ 1642 if (!request_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len, 1643 "pm2fb smem")) { 1644 printk(KERN_WARNING "pm2fb: Can't reserve smem.\n"); 1645 goto err_exit_mmio; 1646 } 1647 info->screen_base = 1648 ioremap_wc(pm2fb_fix.smem_start, pm2fb_fix.smem_len); 1649 if (!info->screen_base) { 1650 printk(KERN_WARNING "pm2fb: Can't ioremap smem area.\n"); 1651 release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len); 1652 goto err_exit_mmio; 1653 } 1654 1655 if (!nomtrr) 1656 default_par->wc_cookie = arch_phys_wc_add(pm2fb_fix.smem_start, 1657 pm2fb_fix.smem_len); 1658 1659 info->fbops = &pm2fb_ops; 1660 info->fix = pm2fb_fix; 1661 info->pseudo_palette = default_par->palette; 1662 info->flags = FBINFO_HWACCEL_YPAN | 1663 FBINFO_HWACCEL_COPYAREA | 1664 FBINFO_HWACCEL_IMAGEBLIT | 1665 FBINFO_HWACCEL_FILLRECT; 1666 1667 info->pixmap.addr = kmalloc(PM2_PIXMAP_SIZE, GFP_KERNEL); 1668 if (!info->pixmap.addr) { 1669 retval = -ENOMEM; 1670 goto err_exit_pixmap; 1671 } 1672 info->pixmap.size = PM2_PIXMAP_SIZE; 1673 info->pixmap.buf_align = 4; 1674 info->pixmap.scan_align = 4; 1675 info->pixmap.access_align = 32; 1676 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1677 1678 if (noaccel) { 1679 printk(KERN_DEBUG "disabling acceleration\n"); 1680 info->flags |= FBINFO_HWACCEL_DISABLED; 1681 info->pixmap.scan_align = 1; 1682 } 1683 1684 if (!mode_option) 1685 mode_option = "640x480@60"; 1686 1687 err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8); 1688 if (!err || err == 4) 1689 info->var = pm2fb_var; 1690 1691 retval = fb_alloc_cmap(&info->cmap, 256, 0); 1692 if (retval < 0) 1693 goto err_exit_both; 1694 1695 retval = register_framebuffer(info); 1696 if (retval < 0) 1697 goto err_exit_all; 1698 1699 fb_info(info, "%s frame buffer device, memory = %dK\n", 1700 info->fix.id, pm2fb_fix.smem_len / 1024); 1701 1702 /* 1703 * Our driver data 1704 */ 1705 pci_set_drvdata(pdev, info); 1706 1707 return 0; 1708 1709 err_exit_all: 1710 fb_dealloc_cmap(&info->cmap); 1711 err_exit_both: 1712 kfree(info->pixmap.addr); 1713 err_exit_pixmap: 1714 iounmap(info->screen_base); 1715 release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len); 1716 err_exit_mmio: 1717 iounmap(default_par->v_regs); 1718 release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); 1719 err_exit_neither: 1720 framebuffer_release(info); 1721 err_exit_disable: 1722 pci_disable_device(pdev); 1723 return retval; 1724} 1725 1726/** 1727 * pm2fb_remove - Release all device resources. 1728 * 1729 * @pdev: PCI device to clean up. 1730 */ 1731static void pm2fb_remove(struct pci_dev *pdev) 1732{ 1733 struct fb_info *info = pci_get_drvdata(pdev); 1734 struct fb_fix_screeninfo *fix = &info->fix; 1735 struct pm2fb_par *par = info->par; 1736 1737 unregister_framebuffer(info); 1738 arch_phys_wc_del(par->wc_cookie); 1739 iounmap(info->screen_base); 1740 release_mem_region(fix->smem_start, fix->smem_len); 1741 iounmap(par->v_regs); 1742 release_mem_region(fix->mmio_start, fix->mmio_len); 1743 1744 fb_dealloc_cmap(&info->cmap); 1745 kfree(info->pixmap.addr); 1746 framebuffer_release(info); 1747 pci_disable_device(pdev); 1748} 1749 1750static const struct pci_device_id pm2fb_id_table[] = { 1751 { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020, 1752 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 1753 { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2, 1754 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 1755 { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V, 1756 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 1757 { 0, } 1758}; 1759 1760static struct pci_driver pm2fb_driver = { 1761 .name = "pm2fb", 1762 .id_table = pm2fb_id_table, 1763 .probe = pm2fb_probe, 1764 .remove = pm2fb_remove, 1765}; 1766 1767MODULE_DEVICE_TABLE(pci, pm2fb_id_table); 1768 1769 1770#ifndef MODULE 1771/* 1772 * Parse user specified options. 1773 * 1774 * This is, comma-separated options following `video=pm2fb:'. 1775 */ 1776static int __init pm2fb_setup(char *options) 1777{ 1778 char *this_opt; 1779 1780 if (!options || !*options) 1781 return 0; 1782 1783 while ((this_opt = strsep(&options, ",")) != NULL) { 1784 if (!*this_opt) 1785 continue; 1786 if (!strcmp(this_opt, "lowhsync")) 1787 lowhsync = 1; 1788 else if (!strcmp(this_opt, "lowvsync")) 1789 lowvsync = 1; 1790 else if (!strncmp(this_opt, "hwcursor=", 9)) 1791 hwcursor = simple_strtoul(this_opt + 9, NULL, 0); 1792 else if (!strncmp(this_opt, "nomtrr", 6)) 1793 nomtrr = 1; 1794 else if (!strncmp(this_opt, "noaccel", 7)) 1795 noaccel = 1; 1796 else 1797 mode_option = this_opt; 1798 } 1799 return 0; 1800} 1801#endif 1802 1803 1804static int __init pm2fb_init(void) 1805{ 1806#ifndef MODULE 1807 char *option = NULL; 1808#endif 1809 1810 if (fb_modesetting_disabled("pm2fb")) 1811 return -ENODEV; 1812 1813#ifndef MODULE 1814 if (fb_get_options("pm2fb", &option)) 1815 return -ENODEV; 1816 pm2fb_setup(option); 1817#endif 1818 1819 return pci_register_driver(&pm2fb_driver); 1820} 1821 1822module_init(pm2fb_init); 1823 1824#ifdef MODULE 1825/* 1826 * Cleanup 1827 */ 1828 1829static void __exit pm2fb_exit(void) 1830{ 1831 pci_unregister_driver(&pm2fb_driver); 1832} 1833#endif 1834 1835#ifdef MODULE 1836module_exit(pm2fb_exit); 1837 1838module_param(mode_option, charp, 0); 1839MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'"); 1840module_param_named(mode, mode_option, charp, 0); 1841MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)"); 1842module_param(lowhsync, bool, 0); 1843MODULE_PARM_DESC(lowhsync, "Force horizontal sync low regardless of mode"); 1844module_param(lowvsync, bool, 0); 1845MODULE_PARM_DESC(lowvsync, "Force vertical sync low regardless of mode"); 1846module_param(noaccel, bool, 0); 1847MODULE_PARM_DESC(noaccel, "Disable acceleration"); 1848module_param(hwcursor, int, 0644); 1849MODULE_PARM_DESC(hwcursor, "Enable hardware cursor " 1850 "(1=enable, 0=disable, default=1)"); 1851module_param(nomtrr, bool, 0); 1852MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)"); 1853 1854MODULE_AUTHOR("Jim Hague <jim.hague@acm.org>"); 1855MODULE_DESCRIPTION("Permedia2 framebuffer device driver"); 1856MODULE_LICENSE("GPL"); 1857#endif
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