1 /* 2 * ATI Frame Buffer Device Driver Core 3 * 4 * Copyright (C) 2004 Alex Kern <alex.kern@gmx.de> 5 * Copyright (C) 1997-2001 Geert Uytterhoeven 6 * Copyright (C) 1998 Bernd Harries 7 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) 8 * 9 * This driver supports the following ATI graphics chips: 10 * - ATI Mach64 11 * 12 * To do: add support for 13 * - ATI Rage128 (from aty128fb.c) 14 * - ATI Radeon (from radeonfb.c) 15 * 16 * This driver is partly based on the PowerMac console driver: 17 * 18 * Copyright (C) 1996 Paul Mackerras 19 * 20 * and on the PowerMac ATI/mach64 display driver: 21 * 22 * Copyright (C) 1997 Michael AK Tesch 23 * 24 * with work by Jon Howell 25 * Harry AC Eaton 26 * Anthony Tong <atong@uiuc.edu> 27 * 28 * Generic LCD support written by Daniel Mantione, ported from 2.4.20 by Alex Kern 29 * Many Thanks to Ville Syrjälä for patches and fixing nasting 16 bit color bug. 30 * 31 * This file is subject to the terms and conditions of the GNU General Public 32 * License. See the file COPYING in the main directory of this archive for 33 * more details. 34 * 35 * Many thanks to Nitya from ATI devrel for support and patience ! 36 */ 37 38 /****************************************************************************** 39 40 TODO: 41 42 - cursor support on all cards and all ramdacs. 43 - cursor parameters controlable via ioctl()s. 44 - guess PLL and MCLK based on the original PLL register values initialized 45 by Open Firmware (if they are initialized). BIOS is done 46 47 (Anyone with Mac to help with this?) 48 49 ******************************************************************************/ 50 51 #include <linux/aperture.h> 52 #include <linux/compat.h> 53 #include <linux/module.h> 54 #include <linux/moduleparam.h> 55 #include <linux/kernel.h> 56 #include <linux/errno.h> 57 #include <linux/string.h> 58 #include <linux/mm.h> 59 #include <linux/slab.h> 60 #include <linux/vmalloc.h> 61 #include <linux/delay.h> 62 #include <linux/compiler.h> 63 #include <linux/console.h> 64 #include <linux/fb.h> 65 #include <linux/init.h> 66 #include <linux/pci.h> 67 #include <linux/interrupt.h> 68 #include <linux/spinlock.h> 69 #include <linux/wait.h> 70 #include <linux/backlight.h> 71 #include <linux/reboot.h> 72 #include <linux/dmi.h> 73 74 #include <asm/io.h> 75 #include <linux/uaccess.h> 76 77 #include <video/mach64.h> 78 #include "atyfb.h" 79 #include "ati_ids.h" 80 81 #ifdef __powerpc__ 82 #include <asm/machdep.h> 83 #include "../macmodes.h" 84 #endif 85 #ifdef __sparc__ 86 #include <asm/fbio.h> 87 #include <asm/oplib.h> 88 #include <asm/prom.h> 89 #endif 90 91 #ifdef CONFIG_ADB_PMU 92 #include <linux/adb.h> 93 #include <linux/pmu.h> 94 #endif 95 #ifdef CONFIG_BOOTX_TEXT 96 #include <asm/btext.h> 97 #endif 98 #ifdef CONFIG_PMAC_BACKLIGHT 99 #include <asm/backlight.h> 100 #endif 101 102 /* 103 * Debug flags. 104 */ 105 #undef DEBUG 106 /*#define DEBUG*/ 107 108 /* Make sure n * PAGE_SIZE is protected at end of Aperture for GUI-regs */ 109 /* - must be large enough to catch all GUI-Regs */ 110 /* - must be aligned to a PAGE boundary */ 111 #define GUI_RESERVE (1 * PAGE_SIZE) 112 113 /* FIXME: remove the FAIL definition */ 114 #define FAIL(msg) do { \ 115 if (!(var->activate & FB_ACTIVATE_TEST)) \ 116 printk(KERN_CRIT "atyfb: " msg "\n"); \ 117 return -EINVAL; \ 118 } while (0) 119 #define FAIL_MAX(msg, x, _max_) do { \ 120 if (x > _max_) { \ 121 if (!(var->activate & FB_ACTIVATE_TEST)) \ 122 printk(KERN_CRIT "atyfb: " msg " %x(%x)\n", x, _max_); \ 123 return -EINVAL; \ 124 } \ 125 } while (0) 126 #ifdef DEBUG 127 #define DPRINTK(fmt, args...) printk(KERN_DEBUG "atyfb: " fmt, ## args) 128 #else 129 #define DPRINTK(fmt, args...) no_printk(fmt, ##args) 130 #endif 131 132 #define PRINTKI(fmt, args...) printk(KERN_INFO "atyfb: " fmt, ## args) 133 #define PRINTKE(fmt, args...) printk(KERN_ERR "atyfb: " fmt, ## args) 134 135 #if defined(CONFIG_PMAC_BACKLIGHT) || defined(CONFIG_FB_ATY_GENERIC_LCD) || \ 136 defined(CONFIG_FB_ATY_BACKLIGHT) || defined (CONFIG_PPC_PMAC) 137 static const u32 lt_lcd_regs[] = { 138 CNFG_PANEL_LG, 139 LCD_GEN_CNTL_LG, 140 DSTN_CONTROL_LG, 141 HFB_PITCH_ADDR_LG, 142 HORZ_STRETCHING_LG, 143 VERT_STRETCHING_LG, 144 0, /* EXT_VERT_STRETCH */ 145 LT_GIO_LG, 146 POWER_MANAGEMENT_LG 147 }; 148 149 void aty_st_lcd(int index, u32 val, const struct atyfb_par *par) 150 { 151 if (M64_HAS(LT_LCD_REGS)) { 152 aty_st_le32(lt_lcd_regs[index], val, par); 153 } else { 154 unsigned long temp; 155 156 /* write addr byte */ 157 temp = aty_ld_le32(LCD_INDEX, par); 158 aty_st_le32(LCD_INDEX, (temp & ~LCD_INDEX_MASK) | index, par); 159 /* write the register value */ 160 aty_st_le32(LCD_DATA, val, par); 161 } 162 } 163 164 u32 aty_ld_lcd(int index, const struct atyfb_par *par) 165 { 166 if (M64_HAS(LT_LCD_REGS)) { 167 return aty_ld_le32(lt_lcd_regs[index], par); 168 } else { 169 unsigned long temp; 170 171 /* write addr byte */ 172 temp = aty_ld_le32(LCD_INDEX, par); 173 aty_st_le32(LCD_INDEX, (temp & ~LCD_INDEX_MASK) | index, par); 174 /* read the register value */ 175 return aty_ld_le32(LCD_DATA, par); 176 } 177 } 178 #else /* defined(CONFIG_PMAC_BACKLIGHT) || defined(CONFIG_FB_ATY_BACKLIGHT) || 179 defined(CONFIG_FB_ATY_GENERIC_LCD) || defined(CONFIG_PPC_PMAC) */ 180 void aty_st_lcd(int index, u32 val, const struct atyfb_par *par) 181 { } 182 183 u32 aty_ld_lcd(int index, const struct atyfb_par *par) 184 { 185 return 0; 186 } 187 #endif /* defined(CONFIG_PMAC_BACKLIGHT) || defined(CONFIG_FB_ATY_BACKLIGHT) || 188 defined (CONFIG_FB_ATY_GENERIC_LCD) || defined(CONFIG_PPC_PMAC) */ 189 190 #ifdef CONFIG_FB_ATY_GENERIC_LCD 191 /* 192 * ATIReduceRatio -- 193 * 194 * Reduce a fraction by factoring out the largest common divider of the 195 * fraction's numerator and denominator. 196 */ 197 static void ATIReduceRatio(int *Numerator, int *Denominator) 198 { 199 int Multiplier, Divider, Remainder; 200 201 Multiplier = *Numerator; 202 Divider = *Denominator; 203 204 while ((Remainder = Multiplier % Divider)) { 205 Multiplier = Divider; 206 Divider = Remainder; 207 } 208 209 *Numerator /= Divider; 210 *Denominator /= Divider; 211 } 212 #endif 213 /* 214 * The Hardware parameters for each card 215 */ 216 217 struct pci_mmap_map { 218 unsigned long voff; 219 unsigned long poff; 220 unsigned long size; 221 unsigned long prot_flag; 222 unsigned long prot_mask; 223 }; 224 225 static const struct fb_fix_screeninfo atyfb_fix = { 226 .id = "ATY Mach64", 227 .type = FB_TYPE_PACKED_PIXELS, 228 .visual = FB_VISUAL_PSEUDOCOLOR, 229 .xpanstep = 8, 230 .ypanstep = 1, 231 }; 232 233 /* 234 * Frame buffer device API 235 */ 236 237 static int atyfb_open(struct fb_info *info, int user); 238 static int atyfb_release(struct fb_info *info, int user); 239 static int atyfb_check_var(struct fb_var_screeninfo *var, 240 struct fb_info *info); 241 static int atyfb_set_par(struct fb_info *info); 242 static int atyfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, 243 u_int transp, struct fb_info *info); 244 static int atyfb_pan_display(struct fb_var_screeninfo *var, 245 struct fb_info *info); 246 static int atyfb_blank(int blank, struct fb_info *info); 247 static int atyfb_ioctl(struct fb_info *info, u_int cmd, u_long arg); 248 #ifdef CONFIG_COMPAT 249 static int atyfb_compat_ioctl(struct fb_info *info, u_int cmd, u_long arg) 250 { 251 return atyfb_ioctl(info, cmd, (u_long)compat_ptr(arg)); 252 } 253 #endif 254 255 #ifdef __sparc__ 256 static int atyfb_mmap(struct fb_info *info, struct vm_area_struct *vma); 257 #endif 258 static int atyfb_sync(struct fb_info *info); 259 260 /* 261 * Internal routines 262 */ 263 264 static int aty_init(struct fb_info *info); 265 266 static void aty_get_crtc(const struct atyfb_par *par, struct crtc *crtc); 267 268 static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc); 269 static int aty_var_to_crtc(const struct fb_info *info, 270 const struct fb_var_screeninfo *var, 271 struct crtc *crtc); 272 static int aty_crtc_to_var(const struct crtc *crtc, 273 struct fb_var_screeninfo *var); 274 static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info); 275 #ifdef CONFIG_PPC 276 static int read_aty_sense(const struct atyfb_par *par); 277 #endif 278 279 static DEFINE_MUTEX(reboot_lock); 280 static struct fb_info *reboot_info; 281 282 /* 283 * Interface used by the world 284 */ 285 286 static struct fb_var_screeninfo default_var = { 287 /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */ 288 640, 480, 640, 480, 0, 0, 8, 0, 289 {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 290 0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2, 291 0, FB_VMODE_NONINTERLACED 292 }; 293 294 static const struct fb_videomode defmode = { 295 /* 640x480 @ 60 Hz, 31.5 kHz hsync */ 296 NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2, 297 0, FB_VMODE_NONINTERLACED 298 }; 299 300 static struct fb_ops atyfb_ops = { 301 .owner = THIS_MODULE, 302 .fb_open = atyfb_open, 303 .fb_release = atyfb_release, 304 .fb_check_var = atyfb_check_var, 305 .fb_set_par = atyfb_set_par, 306 .fb_setcolreg = atyfb_setcolreg, 307 .fb_pan_display = atyfb_pan_display, 308 .fb_blank = atyfb_blank, 309 .fb_ioctl = atyfb_ioctl, 310 #ifdef CONFIG_COMPAT 311 .fb_compat_ioctl = atyfb_compat_ioctl, 312 #endif 313 .fb_fillrect = atyfb_fillrect, 314 .fb_copyarea = atyfb_copyarea, 315 .fb_imageblit = atyfb_imageblit, 316 #ifdef __sparc__ 317 .fb_mmap = atyfb_mmap, 318 #endif 319 .fb_sync = atyfb_sync, 320 }; 321 322 static bool noaccel; 323 static bool nomtrr; 324 static int vram; 325 static int pll; 326 static int mclk; 327 static int xclk; 328 static int comp_sync = -1; 329 static char *mode; 330 static int backlight = IS_BUILTIN(CONFIG_PMAC_BACKLIGHT); 331 332 #ifdef CONFIG_PPC 333 static int default_vmode = VMODE_CHOOSE; 334 static int default_cmode = CMODE_CHOOSE; 335 336 module_param_named(vmode, default_vmode, int, 0); 337 MODULE_PARM_DESC(vmode, "int: video mode for mac"); 338 module_param_named(cmode, default_cmode, int, 0); 339 MODULE_PARM_DESC(cmode, "int: color mode for mac"); 340 #endif 341 342 #ifdef CONFIG_ATARI 343 static unsigned int mach64_count = 0; 344 static unsigned long phys_vmembase[FB_MAX] = { 0, }; 345 static unsigned long phys_size[FB_MAX] = { 0, }; 346 static unsigned long phys_guiregbase[FB_MAX] = { 0, }; 347 #endif 348 349 /* top -> down is an evolution of mach64 chipset, any corrections? */ 350 #define ATI_CHIP_88800GX (M64F_GX) 351 #define ATI_CHIP_88800CX (M64F_GX) 352 353 #define ATI_CHIP_264CT (M64F_CT | M64F_INTEGRATED | M64F_CT_BUS | M64F_MAGIC_FIFO) 354 #define ATI_CHIP_264ET (M64F_CT | M64F_INTEGRATED | M64F_CT_BUS | M64F_MAGIC_FIFO) 355 356 #define ATI_CHIP_264VT (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_MAGIC_FIFO) 357 #define ATI_CHIP_264GT (M64F_GT | M64F_INTEGRATED | M64F_MAGIC_FIFO | M64F_EXTRA_BRIGHT) 358 359 #define ATI_CHIP_264VTB (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_GTB_DSP) 360 #define ATI_CHIP_264VT3 (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_GTB_DSP | M64F_SDRAM_MAGIC_PLL) 361 #define ATI_CHIP_264VT4 (M64F_VT | M64F_INTEGRATED | M64F_GTB_DSP) 362 363 /* FIXME what is this chip? */ 364 #define ATI_CHIP_264LT (M64F_GT | M64F_INTEGRATED | M64F_GTB_DSP) 365 366 /* make sets shorter */ 367 #define ATI_MODERN_SET (M64F_GT | M64F_INTEGRATED | M64F_GTB_DSP | M64F_EXTRA_BRIGHT) 368 369 #define ATI_CHIP_264GTB (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL) 370 /*#define ATI_CHIP_264GTDVD ?*/ 371 #define ATI_CHIP_264LTG (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL) 372 373 #define ATI_CHIP_264GT2C (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL | M64F_HW_TRIPLE) 374 #define ATI_CHIP_264GTPRO (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D) 375 #define ATI_CHIP_264LTPRO (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D) 376 377 #define ATI_CHIP_264XL (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_XL_MEM) 378 #define ATI_CHIP_MOBILITY (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_XL_MEM | M64F_MOBIL_BUS) 379 380 static struct { 381 u16 pci_id; 382 const char *name; 383 int pll, mclk, xclk, ecp_max; 384 u32 features; 385 } aty_chips[] = { 386 #ifdef CONFIG_FB_ATY_GX 387 /* Mach64 GX */ 388 { PCI_CHIP_MACH64GX, "ATI888GX00 (Mach64 GX)", 135, 50, 50, 0, ATI_CHIP_88800GX }, 389 { PCI_CHIP_MACH64CX, "ATI888CX00 (Mach64 CX)", 135, 50, 50, 0, ATI_CHIP_88800CX }, 390 #endif /* CONFIG_FB_ATY_GX */ 391 392 #ifdef CONFIG_FB_ATY_CT 393 { PCI_CHIP_MACH64CT, "ATI264CT (Mach64 CT)", 135, 60, 60, 0, ATI_CHIP_264CT }, 394 { PCI_CHIP_MACH64ET, "ATI264ET (Mach64 ET)", 135, 60, 60, 0, ATI_CHIP_264ET }, 395 396 /* FIXME what is this chip? */ 397 { PCI_CHIP_MACH64LT, "ATI264LT (Mach64 LT)", 135, 63, 63, 0, ATI_CHIP_264LT }, 398 399 { PCI_CHIP_MACH64VT, "ATI264VT (Mach64 VT)", 170, 67, 67, 80, ATI_CHIP_264VT }, 400 { PCI_CHIP_MACH64GT, "3D RAGE (Mach64 GT)", 135, 63, 63, 80, ATI_CHIP_264GT }, 401 402 { PCI_CHIP_MACH64VU, "ATI264VT3 (Mach64 VU)", 200, 67, 67, 80, ATI_CHIP_264VT3 }, 403 { PCI_CHIP_MACH64GU, "3D RAGE II+ (Mach64 GU)", 200, 67, 67, 100, ATI_CHIP_264GTB }, 404 405 { PCI_CHIP_MACH64LG, "3D RAGE LT (Mach64 LG)", 230, 63, 63, 100, ATI_CHIP_264LTG | M64F_LT_LCD_REGS | M64F_G3_PB_1024x768 }, 406 407 { PCI_CHIP_MACH64VV, "ATI264VT4 (Mach64 VV)", 230, 83, 83, 100, ATI_CHIP_264VT4 }, 408 409 { PCI_CHIP_MACH64GV, "3D RAGE IIC (Mach64 GV, PCI)", 230, 83, 83, 100, ATI_CHIP_264GT2C }, 410 { PCI_CHIP_MACH64GW, "3D RAGE IIC (Mach64 GW, AGP)", 230, 83, 83, 100, ATI_CHIP_264GT2C }, 411 { PCI_CHIP_MACH64GY, "3D RAGE IIC (Mach64 GY, PCI)", 230, 83, 83, 100, ATI_CHIP_264GT2C }, 412 { PCI_CHIP_MACH64GZ, "3D RAGE IIC (Mach64 GZ, AGP)", 230, 83, 83, 100, ATI_CHIP_264GT2C }, 413 414 { PCI_CHIP_MACH64GB, "3D RAGE PRO (Mach64 GB, BGA, AGP)", 230, 100, 100, 125, ATI_CHIP_264GTPRO }, 415 { PCI_CHIP_MACH64GD, "3D RAGE PRO (Mach64 GD, BGA, AGP 1x)", 230, 100, 100, 125, ATI_CHIP_264GTPRO }, 416 { PCI_CHIP_MACH64GI, "3D RAGE PRO (Mach64 GI, BGA, PCI)", 230, 100, 100, 125, ATI_CHIP_264GTPRO | M64F_MAGIC_VRAM_SIZE }, 417 { PCI_CHIP_MACH64GP, "3D RAGE PRO (Mach64 GP, PQFP, PCI)", 230, 100, 100, 125, ATI_CHIP_264GTPRO }, 418 { PCI_CHIP_MACH64GQ, "3D RAGE PRO (Mach64 GQ, PQFP, PCI, limited 3D)", 230, 100, 100, 125, ATI_CHIP_264GTPRO }, 419 420 { PCI_CHIP_MACH64LB, "3D RAGE LT PRO (Mach64 LB, AGP)", 236, 75, 100, 135, ATI_CHIP_264LTPRO }, 421 { PCI_CHIP_MACH64LD, "3D RAGE LT PRO (Mach64 LD, AGP)", 230, 100, 100, 135, ATI_CHIP_264LTPRO }, 422 { PCI_CHIP_MACH64LI, "3D RAGE LT PRO (Mach64 LI, PCI)", 230, 100, 100, 135, ATI_CHIP_264LTPRO | M64F_G3_PB_1_1 | M64F_G3_PB_1024x768 }, 423 { PCI_CHIP_MACH64LP, "3D RAGE LT PRO (Mach64 LP, PCI)", 230, 100, 100, 135, ATI_CHIP_264LTPRO | M64F_G3_PB_1024x768 }, 424 { PCI_CHIP_MACH64LQ, "3D RAGE LT PRO (Mach64 LQ, PCI)", 230, 100, 100, 135, ATI_CHIP_264LTPRO }, 425 426 { PCI_CHIP_MACH64GM, "3D RAGE XL (Mach64 GM, AGP 2x)", 230, 83, 63, 135, ATI_CHIP_264XL }, 427 { PCI_CHIP_MACH64GN, "3D RAGE XC (Mach64 GN, AGP 2x)", 230, 83, 63, 135, ATI_CHIP_264XL }, 428 { PCI_CHIP_MACH64GO, "3D RAGE XL (Mach64 GO, PCI-66)", 230, 83, 63, 135, ATI_CHIP_264XL }, 429 { PCI_CHIP_MACH64GL, "3D RAGE XC (Mach64 GL, PCI-66)", 230, 83, 63, 135, ATI_CHIP_264XL }, 430 { PCI_CHIP_MACH64GR, "3D RAGE XL (Mach64 GR, PCI-33)", 230, 83, 63, 135, ATI_CHIP_264XL | M64F_SDRAM_MAGIC_PLL }, 431 { PCI_CHIP_MACH64GS, "3D RAGE XC (Mach64 GS, PCI-33)", 230, 83, 63, 135, ATI_CHIP_264XL }, 432 433 { PCI_CHIP_MACH64LM, "3D RAGE Mobility P/M (Mach64 LM, AGP 2x)", 230, 83, 125, 135, ATI_CHIP_MOBILITY }, 434 { PCI_CHIP_MACH64LN, "3D RAGE Mobility L (Mach64 LN, AGP 2x)", 230, 83, 125, 135, ATI_CHIP_MOBILITY }, 435 { PCI_CHIP_MACH64LR, "3D RAGE Mobility P/M (Mach64 LR, PCI)", 230, 83, 125, 135, ATI_CHIP_MOBILITY }, 436 { PCI_CHIP_MACH64LS, "3D RAGE Mobility L (Mach64 LS, PCI)", 230, 83, 125, 135, ATI_CHIP_MOBILITY }, 437 #endif /* CONFIG_FB_ATY_CT */ 438 }; 439 440 /* 441 * Last page of 8 MB (4 MB on ISA) aperture is MMIO, 442 * unless the auxiliary register aperture is used. 443 */ 444 static void aty_fudge_framebuffer_len(struct fb_info *info) 445 { 446 struct atyfb_par *par = (struct atyfb_par *) info->par; 447 448 if (!par->aux_start && 449 (info->fix.smem_len == 0x800000 || 450 (par->bus_type == ISA && info->fix.smem_len == 0x400000))) 451 info->fix.smem_len -= GUI_RESERVE; 452 } 453 454 static int correct_chipset(struct atyfb_par *par) 455 { 456 u8 rev; 457 u16 type; 458 u32 chip_id; 459 const char *name; 460 int i; 461 462 for (i = (int)ARRAY_SIZE(aty_chips) - 1; i >= 0; i--) 463 if (par->pci_id == aty_chips[i].pci_id) 464 break; 465 466 if (i < 0) 467 return -ENODEV; 468 469 name = aty_chips[i].name; 470 par->pll_limits.pll_max = aty_chips[i].pll; 471 par->pll_limits.mclk = aty_chips[i].mclk; 472 par->pll_limits.xclk = aty_chips[i].xclk; 473 par->pll_limits.ecp_max = aty_chips[i].ecp_max; 474 par->features = aty_chips[i].features; 475 476 chip_id = aty_ld_le32(CNFG_CHIP_ID, par); 477 type = chip_id & CFG_CHIP_TYPE; 478 rev = (chip_id & CFG_CHIP_REV) >> 24; 479 480 switch (par->pci_id) { 481 #ifdef CONFIG_FB_ATY_GX 482 case PCI_CHIP_MACH64GX: 483 if (type != 0x00d7) 484 return -ENODEV; 485 break; 486 case PCI_CHIP_MACH64CX: 487 if (type != 0x0057) 488 return -ENODEV; 489 break; 490 #endif 491 #ifdef CONFIG_FB_ATY_CT 492 case PCI_CHIP_MACH64VT: 493 switch (rev & 0x07) { 494 case 0x00: 495 switch (rev & 0xc0) { 496 case 0x00: 497 name = "ATI264VT (A3) (Mach64 VT)"; 498 par->pll_limits.pll_max = 170; 499 par->pll_limits.mclk = 67; 500 par->pll_limits.xclk = 67; 501 par->pll_limits.ecp_max = 80; 502 par->features = ATI_CHIP_264VT; 503 break; 504 case 0x40: 505 name = "ATI264VT2 (A4) (Mach64 VT)"; 506 par->pll_limits.pll_max = 200; 507 par->pll_limits.mclk = 67; 508 par->pll_limits.xclk = 67; 509 par->pll_limits.ecp_max = 80; 510 par->features = ATI_CHIP_264VT | M64F_MAGIC_POSTDIV; 511 break; 512 } 513 break; 514 case 0x01: 515 name = "ATI264VT3 (B1) (Mach64 VT)"; 516 par->pll_limits.pll_max = 200; 517 par->pll_limits.mclk = 67; 518 par->pll_limits.xclk = 67; 519 par->pll_limits.ecp_max = 80; 520 par->features = ATI_CHIP_264VTB; 521 break; 522 case 0x02: 523 name = "ATI264VT3 (B2) (Mach64 VT)"; 524 par->pll_limits.pll_max = 200; 525 par->pll_limits.mclk = 67; 526 par->pll_limits.xclk = 67; 527 par->pll_limits.ecp_max = 80; 528 par->features = ATI_CHIP_264VT3; 529 break; 530 } 531 break; 532 case PCI_CHIP_MACH64GT: 533 switch (rev & 0x07) { 534 case 0x01: 535 name = "3D RAGE II (Mach64 GT)"; 536 par->pll_limits.pll_max = 170; 537 par->pll_limits.mclk = 67; 538 par->pll_limits.xclk = 67; 539 par->pll_limits.ecp_max = 80; 540 par->features = ATI_CHIP_264GTB; 541 break; 542 case 0x02: 543 name = "3D RAGE II+ (Mach64 GT)"; 544 par->pll_limits.pll_max = 200; 545 par->pll_limits.mclk = 67; 546 par->pll_limits.xclk = 67; 547 par->pll_limits.ecp_max = 100; 548 par->features = ATI_CHIP_264GTB; 549 break; 550 } 551 break; 552 #endif 553 } 554 555 PRINTKI("%s [0x%04x rev 0x%02x]\n", name, type, rev); 556 return 0; 557 } 558 559 static char ram_dram[] __maybe_unused = "DRAM"; 560 static char ram_resv[] __maybe_unused = "RESV"; 561 #ifdef CONFIG_FB_ATY_GX 562 static char ram_vram[] = "VRAM"; 563 #endif /* CONFIG_FB_ATY_GX */ 564 #ifdef CONFIG_FB_ATY_CT 565 static char ram_edo[] = "EDO"; 566 static char ram_sdram[] = "SDRAM (1:1)"; 567 static char ram_sgram[] = "SGRAM (1:1)"; 568 static char ram_sdram32[] = "SDRAM (2:1) (32-bit)"; 569 static char ram_wram[] = "WRAM"; 570 static char ram_off[] = "OFF"; 571 #endif /* CONFIG_FB_ATY_CT */ 572 573 574 #ifdef CONFIG_FB_ATY_GX 575 static char *aty_gx_ram[8] = { 576 ram_dram, ram_vram, ram_vram, ram_dram, 577 ram_dram, ram_vram, ram_vram, ram_resv 578 }; 579 #endif /* CONFIG_FB_ATY_GX */ 580 581 #ifdef CONFIG_FB_ATY_CT 582 static char *aty_ct_ram[8] = { 583 ram_off, ram_dram, ram_edo, ram_edo, 584 ram_sdram, ram_sgram, ram_wram, ram_resv 585 }; 586 static char *aty_xl_ram[8] = { 587 ram_off, ram_dram, ram_edo, ram_edo, 588 ram_sdram, ram_sgram, ram_sdram32, ram_resv 589 }; 590 #endif /* CONFIG_FB_ATY_CT */ 591 592 static u32 atyfb_get_pixclock(struct fb_var_screeninfo *var, 593 struct atyfb_par *par) 594 { 595 u32 pixclock = var->pixclock; 596 #ifdef CONFIG_FB_ATY_GENERIC_LCD 597 u32 lcd_on_off; 598 par->pll.ct.xres = 0; 599 if (par->lcd_table != 0) { 600 lcd_on_off = aty_ld_lcd(LCD_GEN_CNTL, par); 601 if (lcd_on_off & LCD_ON) { 602 par->pll.ct.xres = var->xres; 603 pixclock = par->lcd_pixclock; 604 } 605 } 606 #endif 607 return pixclock; 608 } 609 610 #if defined(CONFIG_PPC) 611 612 /* 613 * Apple monitor sense 614 */ 615 616 static int read_aty_sense(const struct atyfb_par *par) 617 { 618 int sense, i; 619 620 aty_st_le32(GP_IO, 0x31003100, par); /* drive outputs high */ 621 __delay(200); 622 aty_st_le32(GP_IO, 0, par); /* turn off outputs */ 623 __delay(2000); 624 i = aty_ld_le32(GP_IO, par); /* get primary sense value */ 625 sense = ((i & 0x3000) >> 3) | (i & 0x100); 626 627 /* drive each sense line low in turn and collect the other 2 */ 628 aty_st_le32(GP_IO, 0x20000000, par); /* drive A low */ 629 __delay(2000); 630 i = aty_ld_le32(GP_IO, par); 631 sense |= ((i & 0x1000) >> 7) | ((i & 0x100) >> 4); 632 aty_st_le32(GP_IO, 0x20002000, par); /* drive A high again */ 633 __delay(200); 634 635 aty_st_le32(GP_IO, 0x10000000, par); /* drive B low */ 636 __delay(2000); 637 i = aty_ld_le32(GP_IO, par); 638 sense |= ((i & 0x2000) >> 10) | ((i & 0x100) >> 6); 639 aty_st_le32(GP_IO, 0x10001000, par); /* drive B high again */ 640 __delay(200); 641 642 aty_st_le32(GP_IO, 0x01000000, par); /* drive C low */ 643 __delay(2000); 644 sense |= (aty_ld_le32(GP_IO, par) & 0x3000) >> 12; 645 aty_st_le32(GP_IO, 0, par); /* turn off outputs */ 646 return sense; 647 } 648 649 #endif /* defined(CONFIG_PPC) */ 650 651 /* ------------------------------------------------------------------------- */ 652 653 /* 654 * CRTC programming 655 */ 656 657 static void aty_get_crtc(const struct atyfb_par *par, struct crtc *crtc) 658 { 659 #ifdef CONFIG_FB_ATY_GENERIC_LCD 660 if (par->lcd_table != 0) { 661 if (!M64_HAS(LT_LCD_REGS)) { 662 crtc->lcd_index = aty_ld_le32(LCD_INDEX, par); 663 aty_st_le32(LCD_INDEX, crtc->lcd_index, par); 664 } 665 crtc->lcd_config_panel = aty_ld_lcd(CNFG_PANEL, par); 666 crtc->lcd_gen_cntl = aty_ld_lcd(LCD_GEN_CNTL, par); 667 668 669 /* switch to non shadow registers */ 670 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl & 671 ~(CRTC_RW_SELECT | SHADOW_EN | SHADOW_RW_EN), par); 672 673 /* save stretching */ 674 crtc->horz_stretching = aty_ld_lcd(HORZ_STRETCHING, par); 675 crtc->vert_stretching = aty_ld_lcd(VERT_STRETCHING, par); 676 if (!M64_HAS(LT_LCD_REGS)) 677 crtc->ext_vert_stretch = aty_ld_lcd(EXT_VERT_STRETCH, par); 678 } 679 #endif 680 crtc->h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par); 681 crtc->h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par); 682 crtc->v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par); 683 crtc->v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par); 684 crtc->vline_crnt_vline = aty_ld_le32(CRTC_VLINE_CRNT_VLINE, par); 685 crtc->off_pitch = aty_ld_le32(CRTC_OFF_PITCH, par); 686 crtc->gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par); 687 688 #ifdef CONFIG_FB_ATY_GENERIC_LCD 689 if (par->lcd_table != 0) { 690 /* switch to shadow registers */ 691 aty_st_lcd(LCD_GEN_CNTL, (crtc->lcd_gen_cntl & ~CRTC_RW_SELECT) | 692 SHADOW_EN | SHADOW_RW_EN, par); 693 694 crtc->shadow_h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par); 695 crtc->shadow_h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par); 696 crtc->shadow_v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par); 697 crtc->shadow_v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par); 698 699 aty_st_le32(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par); 700 } 701 #endif /* CONFIG_FB_ATY_GENERIC_LCD */ 702 } 703 704 static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc) 705 { 706 #ifdef CONFIG_FB_ATY_GENERIC_LCD 707 if (par->lcd_table != 0) { 708 /* stop CRTC */ 709 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl & 710 ~(CRTC_EXT_DISP_EN | CRTC_EN), par); 711 712 /* update non-shadow registers first */ 713 aty_st_lcd(CNFG_PANEL, crtc->lcd_config_panel, par); 714 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl & 715 ~(CRTC_RW_SELECT | SHADOW_EN | SHADOW_RW_EN), par); 716 717 /* temporarily disable stretching */ 718 aty_st_lcd(HORZ_STRETCHING, crtc->horz_stretching & 719 ~(HORZ_STRETCH_MODE | HORZ_STRETCH_EN), par); 720 aty_st_lcd(VERT_STRETCHING, crtc->vert_stretching & 721 ~(VERT_STRETCH_RATIO1 | VERT_STRETCH_RATIO2 | 722 VERT_STRETCH_USE0 | VERT_STRETCH_EN), par); 723 } 724 #endif 725 /* turn off CRT */ 726 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl & ~CRTC_EN, par); 727 728 DPRINTK("setting up CRTC\n"); 729 DPRINTK("set primary CRT to %ix%i %c%c composite %c\n", 730 ((((crtc->h_tot_disp >> 16) & 0xff) + 1) << 3), 731 (((crtc->v_tot_disp >> 16) & 0x7ff) + 1), 732 (crtc->h_sync_strt_wid & 0x200000) ? 'N' : 'P', 733 (crtc->v_sync_strt_wid & 0x200000) ? 'N' : 'P', 734 (crtc->gen_cntl & CRTC_CSYNC_EN) ? 'P' : 'N'); 735 736 DPRINTK("CRTC_H_TOTAL_DISP: %x\n", crtc->h_tot_disp); 737 DPRINTK("CRTC_H_SYNC_STRT_WID: %x\n", crtc->h_sync_strt_wid); 738 DPRINTK("CRTC_V_TOTAL_DISP: %x\n", crtc->v_tot_disp); 739 DPRINTK("CRTC_V_SYNC_STRT_WID: %x\n", crtc->v_sync_strt_wid); 740 DPRINTK("CRTC_OFF_PITCH: %x\n", crtc->off_pitch); 741 DPRINTK("CRTC_VLINE_CRNT_VLINE: %x\n", crtc->vline_crnt_vline); 742 DPRINTK("CRTC_GEN_CNTL: %x\n", crtc->gen_cntl); 743 744 aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_tot_disp, par); 745 aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid, par); 746 aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_tot_disp, par); 747 aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid, par); 748 aty_st_le32(CRTC_OFF_PITCH, crtc->off_pitch, par); 749 aty_st_le32(CRTC_VLINE_CRNT_VLINE, crtc->vline_crnt_vline, par); 750 751 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl, par); 752 #if 0 753 FIXME 754 if (par->accel_flags & FB_ACCELF_TEXT) 755 aty_init_engine(par, info); 756 #endif 757 #ifdef CONFIG_FB_ATY_GENERIC_LCD 758 /* after setting the CRTC registers we should set the LCD registers. */ 759 if (par->lcd_table != 0) { 760 /* switch to shadow registers */ 761 aty_st_lcd(LCD_GEN_CNTL, (crtc->lcd_gen_cntl & ~CRTC_RW_SELECT) | 762 SHADOW_EN | SHADOW_RW_EN, par); 763 764 DPRINTK("set shadow CRT to %ix%i %c%c\n", 765 ((((crtc->shadow_h_tot_disp >> 16) & 0xff) + 1) << 3), 766 (((crtc->shadow_v_tot_disp >> 16) & 0x7ff) + 1), 767 (crtc->shadow_h_sync_strt_wid & 0x200000) ? 'N' : 'P', 768 (crtc->shadow_v_sync_strt_wid & 0x200000) ? 'N' : 'P'); 769 770 DPRINTK("SHADOW CRTC_H_TOTAL_DISP: %x\n", 771 crtc->shadow_h_tot_disp); 772 DPRINTK("SHADOW CRTC_H_SYNC_STRT_WID: %x\n", 773 crtc->shadow_h_sync_strt_wid); 774 DPRINTK("SHADOW CRTC_V_TOTAL_DISP: %x\n", 775 crtc->shadow_v_tot_disp); 776 DPRINTK("SHADOW CRTC_V_SYNC_STRT_WID: %x\n", 777 crtc->shadow_v_sync_strt_wid); 778 779 aty_st_le32(CRTC_H_TOTAL_DISP, crtc->shadow_h_tot_disp, par); 780 aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->shadow_h_sync_strt_wid, par); 781 aty_st_le32(CRTC_V_TOTAL_DISP, crtc->shadow_v_tot_disp, par); 782 aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->shadow_v_sync_strt_wid, par); 783 784 /* restore CRTC selection & shadow state and enable stretching */ 785 DPRINTK("LCD_GEN_CNTL: %x\n", crtc->lcd_gen_cntl); 786 DPRINTK("HORZ_STRETCHING: %x\n", crtc->horz_stretching); 787 DPRINTK("VERT_STRETCHING: %x\n", crtc->vert_stretching); 788 if (!M64_HAS(LT_LCD_REGS)) 789 DPRINTK("EXT_VERT_STRETCH: %x\n", crtc->ext_vert_stretch); 790 791 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par); 792 aty_st_lcd(HORZ_STRETCHING, crtc->horz_stretching, par); 793 aty_st_lcd(VERT_STRETCHING, crtc->vert_stretching, par); 794 if (!M64_HAS(LT_LCD_REGS)) { 795 aty_st_lcd(EXT_VERT_STRETCH, crtc->ext_vert_stretch, par); 796 aty_ld_le32(LCD_INDEX, par); 797 aty_st_le32(LCD_INDEX, crtc->lcd_index, par); 798 } 799 } 800 #endif /* CONFIG_FB_ATY_GENERIC_LCD */ 801 } 802 803 static u32 calc_line_length(struct atyfb_par *par, u32 vxres, u32 bpp) 804 { 805 u32 line_length = vxres * bpp / 8; 806 807 if (par->ram_type == SGRAM || 808 (!M64_HAS(XL_MEM) && par->ram_type == WRAM)) 809 line_length = (line_length + 63) & ~63; 810 811 return line_length; 812 } 813 814 static int aty_var_to_crtc(const struct fb_info *info, 815 const struct fb_var_screeninfo *var, 816 struct crtc *crtc) 817 { 818 struct atyfb_par *par = (struct atyfb_par *) info->par; 819 u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp; 820 u32 sync, vmode; 821 u32 h_total, h_disp, h_sync_strt, h_sync_end, h_sync_dly, h_sync_wid, h_sync_pol; 822 u32 v_total, v_disp, v_sync_strt, v_sync_end, v_sync_wid, v_sync_pol, c_sync; 823 u32 pix_width, dp_pix_width, dp_chain_mask; 824 u32 line_length; 825 826 /* input */ 827 xres = (var->xres + 7) & ~7; 828 yres = var->yres; 829 vxres = (var->xres_virtual + 7) & ~7; 830 vyres = var->yres_virtual; 831 xoffset = (var->xoffset + 7) & ~7; 832 yoffset = var->yoffset; 833 bpp = var->bits_per_pixel; 834 if (bpp == 16) 835 bpp = (var->green.length == 5) ? 15 : 16; 836 sync = var->sync; 837 vmode = var->vmode; 838 839 /* convert (and round up) and validate */ 840 if (vxres < xres + xoffset) 841 vxres = xres + xoffset; 842 h_disp = xres; 843 844 if (vyres < yres + yoffset) 845 vyres = yres + yoffset; 846 v_disp = yres; 847 848 if (bpp <= 8) { 849 bpp = 8; 850 pix_width = CRTC_PIX_WIDTH_8BPP; 851 dp_pix_width = HOST_8BPP | SRC_8BPP | DST_8BPP | 852 BYTE_ORDER_LSB_TO_MSB; 853 dp_chain_mask = DP_CHAIN_8BPP; 854 } else if (bpp <= 15) { 855 bpp = 16; 856 pix_width = CRTC_PIX_WIDTH_15BPP; 857 dp_pix_width = HOST_15BPP | SRC_15BPP | DST_15BPP | 858 BYTE_ORDER_LSB_TO_MSB; 859 dp_chain_mask = DP_CHAIN_15BPP; 860 } else if (bpp <= 16) { 861 bpp = 16; 862 pix_width = CRTC_PIX_WIDTH_16BPP; 863 dp_pix_width = HOST_16BPP | SRC_16BPP | DST_16BPP | 864 BYTE_ORDER_LSB_TO_MSB; 865 dp_chain_mask = DP_CHAIN_16BPP; 866 } else if (bpp <= 24 && M64_HAS(INTEGRATED)) { 867 bpp = 24; 868 pix_width = CRTC_PIX_WIDTH_24BPP; 869 dp_pix_width = HOST_8BPP | SRC_8BPP | DST_8BPP | 870 BYTE_ORDER_LSB_TO_MSB; 871 dp_chain_mask = DP_CHAIN_24BPP; 872 } else if (bpp <= 32) { 873 bpp = 32; 874 pix_width = CRTC_PIX_WIDTH_32BPP; 875 dp_pix_width = HOST_32BPP | SRC_32BPP | DST_32BPP | 876 BYTE_ORDER_LSB_TO_MSB; 877 dp_chain_mask = DP_CHAIN_32BPP; 878 } else 879 FAIL("invalid bpp"); 880 881 line_length = calc_line_length(par, vxres, bpp); 882 883 if (vyres * line_length > info->fix.smem_len) 884 FAIL("not enough video RAM"); 885 886 h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1; 887 v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1; 888 889 if ((xres > 1920) || (yres > 1200)) { 890 FAIL("MACH64 chips are designed for max 1920x1200\n" 891 "select another resolution."); 892 } 893 h_sync_strt = h_disp + var->right_margin; 894 h_sync_end = h_sync_strt + var->hsync_len; 895 h_sync_dly = var->right_margin & 7; 896 h_total = h_sync_end + h_sync_dly + var->left_margin; 897 898 v_sync_strt = v_disp + var->lower_margin; 899 v_sync_end = v_sync_strt + var->vsync_len; 900 v_total = v_sync_end + var->upper_margin; 901 902 #ifdef CONFIG_FB_ATY_GENERIC_LCD 903 if (par->lcd_table != 0) { 904 if (!M64_HAS(LT_LCD_REGS)) { 905 u32 lcd_index = aty_ld_le32(LCD_INDEX, par); 906 crtc->lcd_index = lcd_index & 907 ~(LCD_INDEX_MASK | LCD_DISPLAY_DIS | 908 LCD_SRC_SEL | CRTC2_DISPLAY_DIS); 909 aty_st_le32(LCD_INDEX, lcd_index, par); 910 } 911 912 if (!M64_HAS(MOBIL_BUS)) 913 crtc->lcd_index |= CRTC2_DISPLAY_DIS; 914 915 crtc->lcd_config_panel = aty_ld_lcd(CNFG_PANEL, par) | 0x4000; 916 crtc->lcd_gen_cntl = aty_ld_lcd(LCD_GEN_CNTL, par) & ~CRTC_RW_SELECT; 917 918 crtc->lcd_gen_cntl &= 919 ~(HORZ_DIVBY2_EN | DIS_HOR_CRT_DIVBY2 | TVCLK_PM_EN | 920 /*VCLK_DAC_PM_EN | USE_SHADOWED_VEND |*/ 921 USE_SHADOWED_ROWCUR | SHADOW_EN | SHADOW_RW_EN); 922 crtc->lcd_gen_cntl |= DONT_SHADOW_VPAR | LOCK_8DOT; 923 924 if ((crtc->lcd_gen_cntl & LCD_ON) && 925 ((xres > par->lcd_width) || (yres > par->lcd_height))) { 926 /* 927 * We cannot display the mode on the LCD. If the CRT is 928 * enabled we can turn off the LCD. 929 * If the CRT is off, it isn't a good idea to switch it 930 * on; we don't know if one is connected. So it's better 931 * to fail then. 932 */ 933 if (crtc->lcd_gen_cntl & CRT_ON) { 934 if (!(var->activate & FB_ACTIVATE_TEST)) 935 PRINTKI("Disable LCD panel, because video mode does not fit.\n"); 936 crtc->lcd_gen_cntl &= ~LCD_ON; 937 /*aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par);*/ 938 } else { 939 if (!(var->activate & FB_ACTIVATE_TEST)) 940 PRINTKE("Video mode exceeds size of LCD panel.\nConnect this computer to a conventional monitor if you really need this mode.\n"); 941 return -EINVAL; 942 } 943 } 944 } 945 946 if ((par->lcd_table != 0) && (crtc->lcd_gen_cntl & LCD_ON)) { 947 int VScan = 1; 948 /* bpp -> bytespp, 1,4 -> 0; 8 -> 2; 15,16 -> 1; 24 -> 6; 32 -> 5 949 const u8 DFP_h_sync_dly_LT[] = { 0, 2, 1, 6, 5 }; 950 const u8 ADD_to_strt_wid_and_dly_LT_DAC[] = { 0, 5, 6, 9, 9, 12, 12 }; */ 951 952 vmode &= ~(FB_VMODE_DOUBLE | FB_VMODE_INTERLACED); 953 954 /* 955 * This is horror! When we simulate, say 640x480 on an 800x600 956 * LCD monitor, the CRTC should be programmed 800x600 values for 957 * the non visible part, but 640x480 for the visible part. 958 * This code has been tested on a laptop with it's 1400x1050 LCD 959 * monitor and a conventional monitor both switched on. 960 * Tested modes: 1280x1024, 1152x864, 1024x768, 800x600, 961 * works with little glitches also with DOUBLESCAN modes 962 */ 963 if (yres < par->lcd_height) { 964 VScan = par->lcd_height / yres; 965 if (VScan > 1) { 966 VScan = 2; 967 vmode |= FB_VMODE_DOUBLE; 968 } 969 } 970 971 h_sync_strt = h_disp + par->lcd_right_margin; 972 h_sync_end = h_sync_strt + par->lcd_hsync_len; 973 h_sync_dly = /*DFP_h_sync_dly[ ( bpp + 1 ) / 3 ]; */par->lcd_hsync_dly; 974 h_total = h_disp + par->lcd_hblank_len; 975 976 v_sync_strt = v_disp + par->lcd_lower_margin / VScan; 977 v_sync_end = v_sync_strt + par->lcd_vsync_len / VScan; 978 v_total = v_disp + par->lcd_vblank_len / VScan; 979 } 980 #endif /* CONFIG_FB_ATY_GENERIC_LCD */ 981 982 h_disp = (h_disp >> 3) - 1; 983 h_sync_strt = (h_sync_strt >> 3) - 1; 984 h_sync_end = (h_sync_end >> 3) - 1; 985 h_total = (h_total >> 3) - 1; 986 h_sync_wid = h_sync_end - h_sync_strt; 987 988 FAIL_MAX("h_disp too large", h_disp, 0xff); 989 FAIL_MAX("h_sync_strt too large", h_sync_strt, 0x1ff); 990 /*FAIL_MAX("h_sync_wid too large", h_sync_wid, 0x1f);*/ 991 if (h_sync_wid > 0x1f) 992 h_sync_wid = 0x1f; 993 FAIL_MAX("h_total too large", h_total, 0x1ff); 994 995 if (vmode & FB_VMODE_DOUBLE) { 996 v_disp <<= 1; 997 v_sync_strt <<= 1; 998 v_sync_end <<= 1; 999 v_total <<= 1; 1000 } 1001 1002 v_disp--; 1003 v_sync_strt--; 1004 v_sync_end--; 1005 v_total--; 1006 v_sync_wid = v_sync_end - v_sync_strt; 1007 1008 FAIL_MAX("v_disp too large", v_disp, 0x7ff); 1009 FAIL_MAX("v_sync_stsrt too large", v_sync_strt, 0x7ff); 1010 /*FAIL_MAX("v_sync_wid too large", v_sync_wid, 0x1f);*/ 1011 if (v_sync_wid > 0x1f) 1012 v_sync_wid = 0x1f; 1013 FAIL_MAX("v_total too large", v_total, 0x7ff); 1014 1015 c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? CRTC_CSYNC_EN : 0; 1016 1017 /* output */ 1018 crtc->vxres = vxres; 1019 crtc->vyres = vyres; 1020 crtc->xoffset = xoffset; 1021 crtc->yoffset = yoffset; 1022 crtc->bpp = bpp; 1023 crtc->off_pitch = 1024 ((yoffset * line_length + xoffset * bpp / 8) / 8) | 1025 ((line_length / bpp) << 22); 1026 crtc->vline_crnt_vline = 0; 1027 1028 crtc->h_tot_disp = h_total | (h_disp << 16); 1029 crtc->h_sync_strt_wid = (h_sync_strt & 0xff) | (h_sync_dly << 8) | 1030 ((h_sync_strt & 0x100) << 4) | (h_sync_wid << 16) | 1031 (h_sync_pol << 21); 1032 crtc->v_tot_disp = v_total | (v_disp << 16); 1033 crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid << 16) | 1034 (v_sync_pol << 21); 1035 1036 /* crtc->gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_PRESERVED_MASK; */ 1037 crtc->gen_cntl = CRTC_EXT_DISP_EN | CRTC_EN | pix_width | c_sync; 1038 crtc->gen_cntl |= CRTC_VGA_LINEAR; 1039 1040 /* Enable doublescan mode if requested */ 1041 if (vmode & FB_VMODE_DOUBLE) 1042 crtc->gen_cntl |= CRTC_DBL_SCAN_EN; 1043 /* Enable interlaced mode if requested */ 1044 if (vmode & FB_VMODE_INTERLACED) 1045 crtc->gen_cntl |= CRTC_INTERLACE_EN; 1046 #ifdef CONFIG_FB_ATY_GENERIC_LCD 1047 if (par->lcd_table != 0) { 1048 u32 vdisplay = yres; 1049 if (vmode & FB_VMODE_DOUBLE) 1050 vdisplay <<= 1; 1051 crtc->gen_cntl &= ~(CRTC2_EN | CRTC2_PIX_WIDTH); 1052 crtc->lcd_gen_cntl &= ~(HORZ_DIVBY2_EN | DIS_HOR_CRT_DIVBY2 | 1053 /*TVCLK_PM_EN | VCLK_DAC_PM_EN |*/ 1054 USE_SHADOWED_VEND | 1055 USE_SHADOWED_ROWCUR | 1056 SHADOW_EN | SHADOW_RW_EN); 1057 crtc->lcd_gen_cntl |= DONT_SHADOW_VPAR/* | LOCK_8DOT*/; 1058 1059 /* MOBILITY M1 tested, FIXME: LT */ 1060 crtc->horz_stretching = aty_ld_lcd(HORZ_STRETCHING, par); 1061 if (!M64_HAS(LT_LCD_REGS)) 1062 crtc->ext_vert_stretch = aty_ld_lcd(EXT_VERT_STRETCH, par) & 1063 ~(AUTO_VERT_RATIO | VERT_STRETCH_MODE | VERT_STRETCH_RATIO3); 1064 1065 crtc->horz_stretching &= ~(HORZ_STRETCH_RATIO | 1066 HORZ_STRETCH_LOOP | AUTO_HORZ_RATIO | 1067 HORZ_STRETCH_MODE | HORZ_STRETCH_EN); 1068 if (xres < par->lcd_width && crtc->lcd_gen_cntl & LCD_ON) { 1069 do { 1070 /* 1071 * The horizontal blender misbehaves when 1072 * HDisplay is less than a certain threshold 1073 * (440 for a 1024-wide panel). It doesn't 1074 * stretch such modes enough. Use pixel 1075 * replication instead of blending to stretch 1076 * modes that can be made to exactly fit the 1077 * panel width. The undocumented "NoLCDBlend" 1078 * option allows the pixel-replicated mode to 1079 * be slightly wider or narrower than the 1080 * panel width. It also causes a mode that is 1081 * exactly half as wide as the panel to be 1082 * pixel-replicated, rather than blended. 1083 */ 1084 int HDisplay = xres & ~7; 1085 int nStretch = par->lcd_width / HDisplay; 1086 int Remainder = par->lcd_width % HDisplay; 1087 1088 if ((!Remainder && ((nStretch > 2))) || 1089 (((HDisplay * 16) / par->lcd_width) < 7)) { 1090 static const char StretchLoops[] = { 10, 12, 13, 15, 16 }; 1091 int horz_stretch_loop = -1, BestRemainder; 1092 int Numerator = HDisplay, Denominator = par->lcd_width; 1093 int Index = 5; 1094 ATIReduceRatio(&Numerator, &Denominator); 1095 1096 BestRemainder = (Numerator * 16) / Denominator; 1097 while (--Index >= 0) { 1098 Remainder = ((Denominator - Numerator) * StretchLoops[Index]) % 1099 Denominator; 1100 if (Remainder < BestRemainder) { 1101 horz_stretch_loop = Index; 1102 if (!(BestRemainder = Remainder)) 1103 break; 1104 } 1105 } 1106 1107 if ((horz_stretch_loop >= 0) && !BestRemainder) { 1108 int horz_stretch_ratio = 0, Accumulator = 0; 1109 int reuse_previous = 1; 1110 1111 Index = StretchLoops[horz_stretch_loop]; 1112 1113 while (--Index >= 0) { 1114 if (Accumulator > 0) 1115 horz_stretch_ratio |= reuse_previous; 1116 else 1117 Accumulator += Denominator; 1118 Accumulator -= Numerator; 1119 reuse_previous <<= 1; 1120 } 1121 1122 crtc->horz_stretching |= (HORZ_STRETCH_EN | 1123 ((horz_stretch_loop & HORZ_STRETCH_LOOP) << 16) | 1124 (horz_stretch_ratio & HORZ_STRETCH_RATIO)); 1125 break; /* Out of the do { ... } while (0) */ 1126 } 1127 } 1128 1129 crtc->horz_stretching |= (HORZ_STRETCH_MODE | HORZ_STRETCH_EN | 1130 (((HDisplay * (HORZ_STRETCH_BLEND + 1)) / par->lcd_width) & HORZ_STRETCH_BLEND)); 1131 } while (0); 1132 } 1133 1134 if (vdisplay < par->lcd_height && crtc->lcd_gen_cntl & LCD_ON) { 1135 crtc->vert_stretching = (VERT_STRETCH_USE0 | VERT_STRETCH_EN | 1136 (((vdisplay * (VERT_STRETCH_RATIO0 + 1)) / par->lcd_height) & VERT_STRETCH_RATIO0)); 1137 1138 if (!M64_HAS(LT_LCD_REGS) && 1139 xres <= (M64_HAS(MOBIL_BUS) ? 1024 : 800)) 1140 crtc->ext_vert_stretch |= VERT_STRETCH_MODE; 1141 } else { 1142 /* 1143 * Don't use vertical blending if the mode is too wide 1144 * or not vertically stretched. 1145 */ 1146 crtc->vert_stretching = 0; 1147 } 1148 /* copy to shadow crtc */ 1149 crtc->shadow_h_tot_disp = crtc->h_tot_disp; 1150 crtc->shadow_h_sync_strt_wid = crtc->h_sync_strt_wid; 1151 crtc->shadow_v_tot_disp = crtc->v_tot_disp; 1152 crtc->shadow_v_sync_strt_wid = crtc->v_sync_strt_wid; 1153 } 1154 #endif /* CONFIG_FB_ATY_GENERIC_LCD */ 1155 1156 if (M64_HAS(MAGIC_FIFO)) { 1157 /* FIXME: display FIFO low watermark values */ 1158 crtc->gen_cntl |= (aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_FIFO_LWM); 1159 } 1160 crtc->dp_pix_width = dp_pix_width; 1161 crtc->dp_chain_mask = dp_chain_mask; 1162 1163 return 0; 1164 } 1165 1166 static int aty_crtc_to_var(const struct crtc *crtc, 1167 struct fb_var_screeninfo *var) 1168 { 1169 u32 xres, yres, bpp, left, right, upper, lower, hslen, vslen, sync; 1170 u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid, h_sync_pol; 1171 u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync; 1172 u32 pix_width; 1173 u32 double_scan, interlace; 1174 1175 /* input */ 1176 h_total = crtc->h_tot_disp & 0x1ff; 1177 h_disp = (crtc->h_tot_disp >> 16) & 0xff; 1178 h_sync_strt = (crtc->h_sync_strt_wid & 0xff) | ((crtc->h_sync_strt_wid >> 4) & 0x100); 1179 h_sync_dly = (crtc->h_sync_strt_wid >> 8) & 0x7; 1180 h_sync_wid = (crtc->h_sync_strt_wid >> 16) & 0x1f; 1181 h_sync_pol = (crtc->h_sync_strt_wid >> 21) & 0x1; 1182 v_total = crtc->v_tot_disp & 0x7ff; 1183 v_disp = (crtc->v_tot_disp >> 16) & 0x7ff; 1184 v_sync_strt = crtc->v_sync_strt_wid & 0x7ff; 1185 v_sync_wid = (crtc->v_sync_strt_wid >> 16) & 0x1f; 1186 v_sync_pol = (crtc->v_sync_strt_wid >> 21) & 0x1; 1187 c_sync = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0; 1188 pix_width = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK; 1189 double_scan = crtc->gen_cntl & CRTC_DBL_SCAN_EN; 1190 interlace = crtc->gen_cntl & CRTC_INTERLACE_EN; 1191 1192 /* convert */ 1193 xres = (h_disp + 1) * 8; 1194 yres = v_disp + 1; 1195 left = (h_total - h_sync_strt - h_sync_wid) * 8 - h_sync_dly; 1196 right = (h_sync_strt - h_disp) * 8 + h_sync_dly; 1197 hslen = h_sync_wid * 8; 1198 upper = v_total - v_sync_strt - v_sync_wid; 1199 lower = v_sync_strt - v_disp; 1200 vslen = v_sync_wid; 1201 sync = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) | 1202 (v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) | 1203 (c_sync ? FB_SYNC_COMP_HIGH_ACT : 0); 1204 1205 switch (pix_width) { 1206 case CRTC_PIX_WIDTH_8BPP: 1207 bpp = 8; 1208 var->red.offset = 0; 1209 var->red.length = 8; 1210 var->green.offset = 0; 1211 var->green.length = 8; 1212 var->blue.offset = 0; 1213 var->blue.length = 8; 1214 var->transp.offset = 0; 1215 var->transp.length = 0; 1216 break; 1217 case CRTC_PIX_WIDTH_15BPP: /* RGB 555 */ 1218 bpp = 16; 1219 var->red.offset = 10; 1220 var->red.length = 5; 1221 var->green.offset = 5; 1222 var->green.length = 5; 1223 var->blue.offset = 0; 1224 var->blue.length = 5; 1225 var->transp.offset = 0; 1226 var->transp.length = 0; 1227 break; 1228 case CRTC_PIX_WIDTH_16BPP: /* RGB 565 */ 1229 bpp = 16; 1230 var->red.offset = 11; 1231 var->red.length = 5; 1232 var->green.offset = 5; 1233 var->green.length = 6; 1234 var->blue.offset = 0; 1235 var->blue.length = 5; 1236 var->transp.offset = 0; 1237 var->transp.length = 0; 1238 break; 1239 case CRTC_PIX_WIDTH_24BPP: /* RGB 888 */ 1240 bpp = 24; 1241 var->red.offset = 16; 1242 var->red.length = 8; 1243 var->green.offset = 8; 1244 var->green.length = 8; 1245 var->blue.offset = 0; 1246 var->blue.length = 8; 1247 var->transp.offset = 0; 1248 var->transp.length = 0; 1249 break; 1250 case CRTC_PIX_WIDTH_32BPP: /* ARGB 8888 */ 1251 bpp = 32; 1252 var->red.offset = 16; 1253 var->red.length = 8; 1254 var->green.offset = 8; 1255 var->green.length = 8; 1256 var->blue.offset = 0; 1257 var->blue.length = 8; 1258 var->transp.offset = 24; 1259 var->transp.length = 8; 1260 break; 1261 default: 1262 PRINTKE("Invalid pixel width\n"); 1263 return -EINVAL; 1264 } 1265 1266 /* output */ 1267 var->xres = xres; 1268 var->yres = yres; 1269 var->xres_virtual = crtc->vxres; 1270 var->yres_virtual = crtc->vyres; 1271 var->bits_per_pixel = bpp; 1272 var->left_margin = left; 1273 var->right_margin = right; 1274 var->upper_margin = upper; 1275 var->lower_margin = lower; 1276 var->hsync_len = hslen; 1277 var->vsync_len = vslen; 1278 var->sync = sync; 1279 var->vmode = FB_VMODE_NONINTERLACED; 1280 /* 1281 * In double scan mode, the vertical parameters are doubled, 1282 * so we need to halve them to get the right values. 1283 * In interlaced mode the values are already correct, 1284 * so no correction is necessary. 1285 */ 1286 if (interlace) 1287 var->vmode = FB_VMODE_INTERLACED; 1288 1289 if (double_scan) { 1290 var->vmode = FB_VMODE_DOUBLE; 1291 var->yres >>= 1; 1292 var->upper_margin >>= 1; 1293 var->lower_margin >>= 1; 1294 var->vsync_len >>= 1; 1295 } 1296 1297 return 0; 1298 } 1299 1300 /* ------------------------------------------------------------------------- */ 1301 1302 static int atyfb_set_par(struct fb_info *info) 1303 { 1304 struct atyfb_par *par = (struct atyfb_par *) info->par; 1305 struct fb_var_screeninfo *var = &info->var; 1306 u32 tmp, pixclock; 1307 int err; 1308 #ifdef DEBUG 1309 struct fb_var_screeninfo debug; 1310 u32 pixclock_in_ps; 1311 #endif 1312 if (par->asleep) 1313 return 0; 1314 1315 err = aty_var_to_crtc(info, var, &par->crtc); 1316 if (err) 1317 return err; 1318 1319 pixclock = atyfb_get_pixclock(var, par); 1320 1321 if (pixclock == 0) { 1322 PRINTKE("Invalid pixclock\n"); 1323 return -EINVAL; 1324 } else { 1325 err = par->pll_ops->var_to_pll(info, pixclock, 1326 var->bits_per_pixel, &par->pll); 1327 if (err) 1328 return err; 1329 } 1330 1331 par->accel_flags = var->accel_flags; /* hack */ 1332 1333 if (var->accel_flags) { 1334 atyfb_ops.fb_sync = atyfb_sync; 1335 info->flags &= ~FBINFO_HWACCEL_DISABLED; 1336 } else { 1337 atyfb_ops.fb_sync = NULL; 1338 info->flags |= FBINFO_HWACCEL_DISABLED; 1339 } 1340 1341 if (par->blitter_may_be_busy) 1342 wait_for_idle(par); 1343 1344 aty_set_crtc(par, &par->crtc); 1345 par->dac_ops->set_dac(info, &par->pll, 1346 var->bits_per_pixel, par->accel_flags); 1347 par->pll_ops->set_pll(info, &par->pll); 1348 1349 #ifdef DEBUG 1350 if (par->pll_ops && par->pll_ops->pll_to_var) 1351 pixclock_in_ps = par->pll_ops->pll_to_var(info, &par->pll); 1352 else 1353 pixclock_in_ps = 0; 1354 1355 if (0 == pixclock_in_ps) { 1356 PRINTKE("ALERT ops->pll_to_var get 0\n"); 1357 pixclock_in_ps = pixclock; 1358 } 1359 1360 memset(&debug, 0, sizeof(debug)); 1361 if (!aty_crtc_to_var(&par->crtc, &debug)) { 1362 u32 hSync, vRefresh; 1363 u32 h_disp, h_sync_strt, h_sync_end, h_total; 1364 u32 v_disp, v_sync_strt, v_sync_end, v_total; 1365 1366 h_disp = debug.xres; 1367 h_sync_strt = h_disp + debug.right_margin; 1368 h_sync_end = h_sync_strt + debug.hsync_len; 1369 h_total = h_sync_end + debug.left_margin; 1370 v_disp = debug.yres; 1371 v_sync_strt = v_disp + debug.lower_margin; 1372 v_sync_end = v_sync_strt + debug.vsync_len; 1373 v_total = v_sync_end + debug.upper_margin; 1374 1375 hSync = 1000000000 / (pixclock_in_ps * h_total); 1376 vRefresh = (hSync * 1000) / v_total; 1377 if (par->crtc.gen_cntl & CRTC_INTERLACE_EN) 1378 vRefresh *= 2; 1379 if (par->crtc.gen_cntl & CRTC_DBL_SCAN_EN) 1380 vRefresh /= 2; 1381 1382 DPRINTK("atyfb_set_par\n"); 1383 DPRINTK(" Set Visible Mode to %ix%i-%i\n", 1384 var->xres, var->yres, var->bits_per_pixel); 1385 DPRINTK(" Virtual resolution %ix%i, " 1386 "pixclock_in_ps %i (calculated %i)\n", 1387 var->xres_virtual, var->yres_virtual, 1388 pixclock, pixclock_in_ps); 1389 DPRINTK(" Dot clock: %i MHz\n", 1390 1000000 / pixclock_in_ps); 1391 DPRINTK(" Horizontal sync: %i kHz\n", hSync); 1392 DPRINTK(" Vertical refresh: %i Hz\n", vRefresh); 1393 DPRINTK(" x style: %i.%03i %i %i %i %i %i %i %i %i\n", 1394 1000000 / pixclock_in_ps, 1000000 % pixclock_in_ps, 1395 h_disp, h_sync_strt, h_sync_end, h_total, 1396 v_disp, v_sync_strt, v_sync_end, v_total); 1397 DPRINTK(" fb style: %i %i %i %i %i %i %i %i %i\n", 1398 pixclock_in_ps, 1399 debug.left_margin, h_disp, debug.right_margin, debug.hsync_len, 1400 debug.upper_margin, v_disp, debug.lower_margin, debug.vsync_len); 1401 } 1402 #endif /* DEBUG */ 1403 1404 if (!M64_HAS(INTEGRATED)) { 1405 /* Don't forget MEM_CNTL */ 1406 tmp = aty_ld_le32(MEM_CNTL, par) & 0xf0ffffff; 1407 switch (var->bits_per_pixel) { 1408 case 8: 1409 tmp |= 0x02000000; 1410 break; 1411 case 16: 1412 tmp |= 0x03000000; 1413 break; 1414 case 32: 1415 tmp |= 0x06000000; 1416 break; 1417 } 1418 aty_st_le32(MEM_CNTL, tmp, par); 1419 } else { 1420 tmp = aty_ld_le32(MEM_CNTL, par) & 0xf00fffff; 1421 if (!M64_HAS(MAGIC_POSTDIV)) 1422 tmp |= par->mem_refresh_rate << 20; 1423 switch (var->bits_per_pixel) { 1424 case 8: 1425 case 24: 1426 tmp |= 0x00000000; 1427 break; 1428 case 16: 1429 tmp |= 0x04000000; 1430 break; 1431 case 32: 1432 tmp |= 0x08000000; 1433 break; 1434 } 1435 if (M64_HAS(CT_BUS)) { 1436 aty_st_le32(DAC_CNTL, 0x87010184, par); 1437 aty_st_le32(BUS_CNTL, 0x680000f9, par); 1438 } else if (M64_HAS(VT_BUS)) { 1439 aty_st_le32(DAC_CNTL, 0x87010184, par); 1440 aty_st_le32(BUS_CNTL, 0x680000f9, par); 1441 } else if (M64_HAS(MOBIL_BUS)) { 1442 aty_st_le32(DAC_CNTL, 0x80010102, par); 1443 aty_st_le32(BUS_CNTL, 0x7b33a040 | (par->aux_start ? BUS_APER_REG_DIS : 0), par); 1444 } else { 1445 /* GT */ 1446 aty_st_le32(DAC_CNTL, 0x86010102, par); 1447 aty_st_le32(BUS_CNTL, 0x7b23a040 | (par->aux_start ? BUS_APER_REG_DIS : 0), par); 1448 aty_st_le32(EXT_MEM_CNTL, aty_ld_le32(EXT_MEM_CNTL, par) | 0x5000001, par); 1449 } 1450 aty_st_le32(MEM_CNTL, tmp, par); 1451 } 1452 aty_st_8(DAC_MASK, 0xff, par); 1453 1454 info->fix.line_length = calc_line_length(par, var->xres_virtual, 1455 var->bits_per_pixel); 1456 1457 info->fix.visual = var->bits_per_pixel <= 8 ? 1458 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; 1459 1460 /* Initialize the graphics engine */ 1461 if (par->accel_flags & FB_ACCELF_TEXT) 1462 aty_init_engine(par, info); 1463 1464 #ifdef CONFIG_BOOTX_TEXT 1465 btext_update_display(info->fix.smem_start, 1466 (((par->crtc.h_tot_disp >> 16) & 0xff) + 1) * 8, 1467 ((par->crtc.v_tot_disp >> 16) & 0x7ff) + 1, 1468 var->bits_per_pixel, 1469 par->crtc.vxres * var->bits_per_pixel / 8); 1470 #endif /* CONFIG_BOOTX_TEXT */ 1471 #ifdef DEBUG 1472 { 1473 /* dump non shadow CRTC, pll, LCD registers */ 1474 int i; u32 base; 1475 1476 /* CRTC registers */ 1477 base = 0x2000; 1478 printk("debug atyfb: Mach64 non-shadow register values:"); 1479 for (i = 0; i < 256; i = i+4) { 1480 if (i % 16 == 0) { 1481 pr_cont("\n"); 1482 printk("debug atyfb: 0x%04X: ", base + i); 1483 } 1484 pr_cont(" %08X", aty_ld_le32(i, par)); 1485 } 1486 pr_cont("\n\n"); 1487 1488 #ifdef CONFIG_FB_ATY_CT 1489 /* PLL registers */ 1490 base = 0x00; 1491 printk("debug atyfb: Mach64 PLL register values:"); 1492 for (i = 0; i < 64; i++) { 1493 if (i % 16 == 0) { 1494 pr_cont("\n"); 1495 printk("debug atyfb: 0x%02X: ", base + i); 1496 } 1497 if (i % 4 == 0) 1498 pr_cont(" "); 1499 pr_cont("%02X", aty_ld_pll_ct(i, par)); 1500 } 1501 pr_cont("\n\n"); 1502 #endif /* CONFIG_FB_ATY_CT */ 1503 1504 #ifdef CONFIG_FB_ATY_GENERIC_LCD 1505 if (par->lcd_table != 0) { 1506 /* LCD registers */ 1507 base = 0x00; 1508 printk("debug atyfb: LCD register values:"); 1509 if (M64_HAS(LT_LCD_REGS)) { 1510 for (i = 0; i <= POWER_MANAGEMENT; i++) { 1511 if (i == EXT_VERT_STRETCH) 1512 continue; 1513 pr_cont("\ndebug atyfb: 0x%04X: ", 1514 lt_lcd_regs[i]); 1515 pr_cont(" %08X", aty_ld_lcd(i, par)); 1516 } 1517 } else { 1518 for (i = 0; i < 64; i++) { 1519 if (i % 4 == 0) 1520 pr_cont("\ndebug atyfb: 0x%02X: ", 1521 base + i); 1522 pr_cont(" %08X", aty_ld_lcd(i, par)); 1523 } 1524 } 1525 pr_cont("\n\n"); 1526 } 1527 #endif /* CONFIG_FB_ATY_GENERIC_LCD */ 1528 } 1529 #endif /* DEBUG */ 1530 return 0; 1531 } 1532 1533 static int atyfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 1534 { 1535 struct atyfb_par *par = (struct atyfb_par *) info->par; 1536 int err; 1537 struct crtc crtc; 1538 union aty_pll pll; 1539 u32 pixclock; 1540 1541 memcpy(&pll, &par->pll, sizeof(pll)); 1542 1543 err = aty_var_to_crtc(info, var, &crtc); 1544 if (err) 1545 return err; 1546 1547 pixclock = atyfb_get_pixclock(var, par); 1548 1549 if (pixclock == 0) { 1550 if (!(var->activate & FB_ACTIVATE_TEST)) 1551 PRINTKE("Invalid pixclock\n"); 1552 return -EINVAL; 1553 } else { 1554 err = par->pll_ops->var_to_pll(info, pixclock, 1555 var->bits_per_pixel, &pll); 1556 if (err) 1557 return err; 1558 } 1559 1560 if (var->accel_flags & FB_ACCELF_TEXT) 1561 info->var.accel_flags = FB_ACCELF_TEXT; 1562 else 1563 info->var.accel_flags = 0; 1564 1565 aty_crtc_to_var(&crtc, var); 1566 var->pixclock = par->pll_ops->pll_to_var(info, &pll); 1567 return 0; 1568 } 1569 1570 static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info) 1571 { 1572 u32 xoffset = info->var.xoffset; 1573 u32 yoffset = info->var.yoffset; 1574 u32 line_length = info->fix.line_length; 1575 u32 bpp = info->var.bits_per_pixel; 1576 1577 par->crtc.off_pitch = 1578 ((yoffset * line_length + xoffset * bpp / 8) / 8) | 1579 ((line_length / bpp) << 22); 1580 } 1581 1582 1583 /* 1584 * Open/Release the frame buffer device 1585 */ 1586 1587 static int atyfb_open(struct fb_info *info, int user) 1588 { 1589 struct atyfb_par *par = (struct atyfb_par *) info->par; 1590 1591 if (user) { 1592 par->open++; 1593 #ifdef __sparc__ 1594 par->mmaped = 0; 1595 #endif 1596 } 1597 return 0; 1598 } 1599 1600 static irqreturn_t aty_irq(int irq, void *dev_id) 1601 { 1602 struct atyfb_par *par = dev_id; 1603 int handled = 0; 1604 u32 int_cntl; 1605 1606 spin_lock(&par->int_lock); 1607 1608 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par); 1609 1610 if (int_cntl & CRTC_VBLANK_INT) { 1611 /* clear interrupt */ 1612 aty_st_le32(CRTC_INT_CNTL, (int_cntl & CRTC_INT_EN_MASK) | 1613 CRTC_VBLANK_INT_AK, par); 1614 par->vblank.count++; 1615 if (par->vblank.pan_display) { 1616 par->vblank.pan_display = 0; 1617 aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par); 1618 } 1619 wake_up_interruptible(&par->vblank.wait); 1620 handled = 1; 1621 } 1622 1623 spin_unlock(&par->int_lock); 1624 1625 return IRQ_RETVAL(handled); 1626 } 1627 1628 static int aty_enable_irq(struct atyfb_par *par, int reenable) 1629 { 1630 u32 int_cntl; 1631 1632 if (!test_and_set_bit(0, &par->irq_flags)) { 1633 if (request_irq(par->irq, aty_irq, IRQF_SHARED, "atyfb", par)) { 1634 clear_bit(0, &par->irq_flags); 1635 return -EINVAL; 1636 } 1637 spin_lock_irq(&par->int_lock); 1638 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK; 1639 /* clear interrupt */ 1640 aty_st_le32(CRTC_INT_CNTL, int_cntl | CRTC_VBLANK_INT_AK, par); 1641 /* enable interrupt */ 1642 aty_st_le32(CRTC_INT_CNTL, int_cntl | CRTC_VBLANK_INT_EN, par); 1643 spin_unlock_irq(&par->int_lock); 1644 } else if (reenable) { 1645 spin_lock_irq(&par->int_lock); 1646 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK; 1647 if (!(int_cntl & CRTC_VBLANK_INT_EN)) { 1648 printk("atyfb: someone disabled IRQ [%08x]\n", 1649 int_cntl); 1650 /* re-enable interrupt */ 1651 aty_st_le32(CRTC_INT_CNTL, int_cntl | 1652 CRTC_VBLANK_INT_EN, par); 1653 } 1654 spin_unlock_irq(&par->int_lock); 1655 } 1656 1657 return 0; 1658 } 1659 1660 static int aty_disable_irq(struct atyfb_par *par) 1661 { 1662 u32 int_cntl; 1663 1664 if (test_and_clear_bit(0, &par->irq_flags)) { 1665 if (par->vblank.pan_display) { 1666 par->vblank.pan_display = 0; 1667 aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par); 1668 } 1669 spin_lock_irq(&par->int_lock); 1670 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK; 1671 /* disable interrupt */ 1672 aty_st_le32(CRTC_INT_CNTL, int_cntl & ~CRTC_VBLANK_INT_EN, par); 1673 spin_unlock_irq(&par->int_lock); 1674 free_irq(par->irq, par); 1675 } 1676 1677 return 0; 1678 } 1679 1680 static int atyfb_release(struct fb_info *info, int user) 1681 { 1682 struct atyfb_par *par = (struct atyfb_par *) info->par; 1683 #ifdef __sparc__ 1684 int was_mmaped; 1685 #endif 1686 1687 if (!user) 1688 return 0; 1689 1690 par->open--; 1691 mdelay(1); 1692 wait_for_idle(par); 1693 1694 if (par->open) 1695 return 0; 1696 1697 #ifdef __sparc__ 1698 was_mmaped = par->mmaped; 1699 1700 par->mmaped = 0; 1701 1702 if (was_mmaped) { 1703 struct fb_var_screeninfo var; 1704 1705 /* 1706 * Now reset the default display config, we have 1707 * no idea what the program(s) which mmap'd the 1708 * chip did to the configuration, nor whether it 1709 * restored it correctly. 1710 */ 1711 var = default_var; 1712 if (noaccel) 1713 var.accel_flags &= ~FB_ACCELF_TEXT; 1714 else 1715 var.accel_flags |= FB_ACCELF_TEXT; 1716 if (var.yres == var.yres_virtual) { 1717 u32 videoram = (info->fix.smem_len - (PAGE_SIZE << 2)); 1718 var.yres_virtual = 1719 ((videoram * 8) / var.bits_per_pixel) / 1720 var.xres_virtual; 1721 if (var.yres_virtual < var.yres) 1722 var.yres_virtual = var.yres; 1723 } 1724 } 1725 #endif 1726 aty_disable_irq(par); 1727 1728 return 0; 1729 } 1730 1731 /* 1732 * Pan or Wrap the Display 1733 * 1734 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag 1735 */ 1736 1737 static int atyfb_pan_display(struct fb_var_screeninfo *var, 1738 struct fb_info *info) 1739 { 1740 struct atyfb_par *par = (struct atyfb_par *) info->par; 1741 u32 xres, yres, xoffset, yoffset; 1742 1743 xres = (((par->crtc.h_tot_disp >> 16) & 0xff) + 1) * 8; 1744 yres = ((par->crtc.v_tot_disp >> 16) & 0x7ff) + 1; 1745 if (par->crtc.gen_cntl & CRTC_DBL_SCAN_EN) 1746 yres >>= 1; 1747 xoffset = (var->xoffset + 7) & ~7; 1748 yoffset = var->yoffset; 1749 if (xoffset + xres > par->crtc.vxres || 1750 yoffset + yres > par->crtc.vyres) 1751 return -EINVAL; 1752 info->var.xoffset = xoffset; 1753 info->var.yoffset = yoffset; 1754 if (par->asleep) 1755 return 0; 1756 1757 set_off_pitch(par, info); 1758 if ((var->activate & FB_ACTIVATE_VBL) && !aty_enable_irq(par, 0)) { 1759 par->vblank.pan_display = 1; 1760 } else { 1761 par->vblank.pan_display = 0; 1762 aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par); 1763 } 1764 1765 return 0; 1766 } 1767 1768 static int aty_waitforvblank(struct atyfb_par *par, u32 crtc) 1769 { 1770 struct aty_interrupt *vbl; 1771 unsigned int count; 1772 int ret; 1773 1774 switch (crtc) { 1775 case 0: 1776 vbl = &par->vblank; 1777 break; 1778 default: 1779 return -ENODEV; 1780 } 1781 1782 ret = aty_enable_irq(par, 0); 1783 if (ret) 1784 return ret; 1785 1786 count = vbl->count; 1787 ret = wait_event_interruptible_timeout(vbl->wait, 1788 count != vbl->count, HZ/10); 1789 if (ret < 0) 1790 return ret; 1791 if (ret == 0) { 1792 aty_enable_irq(par, 1); 1793 return -ETIMEDOUT; 1794 } 1795 1796 return 0; 1797 } 1798 1799 1800 #ifdef DEBUG 1801 #define ATYIO_CLKR 0x41545900 /* ATY\00 */ 1802 #define ATYIO_CLKW 0x41545901 /* ATY\01 */ 1803 1804 struct atyclk { 1805 u32 ref_clk_per; 1806 u8 pll_ref_div; 1807 u8 mclk_fb_div; 1808 u8 mclk_post_div; /* 1,2,3,4,8 */ 1809 u8 mclk_fb_mult; /* 2 or 4 */ 1810 u8 xclk_post_div; /* 1,2,3,4,8 */ 1811 u8 vclk_fb_div; 1812 u8 vclk_post_div; /* 1,2,3,4,6,8,12 */ 1813 u32 dsp_xclks_per_row; /* 0-16383 */ 1814 u32 dsp_loop_latency; /* 0-15 */ 1815 u32 dsp_precision; /* 0-7 */ 1816 u32 dsp_on; /* 0-2047 */ 1817 u32 dsp_off; /* 0-2047 */ 1818 }; 1819 1820 #define ATYIO_FEATR 0x41545902 /* ATY\02 */ 1821 #define ATYIO_FEATW 0x41545903 /* ATY\03 */ 1822 #endif 1823 1824 static int atyfb_ioctl(struct fb_info *info, u_int cmd, u_long arg) 1825 { 1826 struct atyfb_par *par = (struct atyfb_par *) info->par; 1827 #ifdef __sparc__ 1828 struct fbtype fbtyp; 1829 #endif 1830 1831 switch (cmd) { 1832 #ifdef __sparc__ 1833 case FBIOGTYPE: 1834 fbtyp.fb_type = FBTYPE_PCI_GENERIC; 1835 fbtyp.fb_width = par->crtc.vxres; 1836 fbtyp.fb_height = par->crtc.vyres; 1837 fbtyp.fb_depth = info->var.bits_per_pixel; 1838 fbtyp.fb_cmsize = info->cmap.len; 1839 fbtyp.fb_size = info->fix.smem_len; 1840 if (copy_to_user((struct fbtype __user *) arg, &fbtyp, 1841 sizeof(fbtyp))) 1842 return -EFAULT; 1843 break; 1844 #endif /* __sparc__ */ 1845 1846 case FBIO_WAITFORVSYNC: 1847 { 1848 u32 crtc; 1849 1850 if (get_user(crtc, (__u32 __user *) arg)) 1851 return -EFAULT; 1852 1853 return aty_waitforvblank(par, crtc); 1854 } 1855 1856 #if defined(DEBUG) && defined(CONFIG_FB_ATY_CT) 1857 case ATYIO_CLKR: 1858 if (M64_HAS(INTEGRATED)) { 1859 struct atyclk clk = { 0 }; 1860 union aty_pll *pll = &par->pll; 1861 u32 dsp_config = pll->ct.dsp_config; 1862 u32 dsp_on_off = pll->ct.dsp_on_off; 1863 clk.ref_clk_per = par->ref_clk_per; 1864 clk.pll_ref_div = pll->ct.pll_ref_div; 1865 clk.mclk_fb_div = pll->ct.mclk_fb_div; 1866 clk.mclk_post_div = pll->ct.mclk_post_div_real; 1867 clk.mclk_fb_mult = pll->ct.mclk_fb_mult; 1868 clk.xclk_post_div = pll->ct.xclk_post_div_real; 1869 clk.vclk_fb_div = pll->ct.vclk_fb_div; 1870 clk.vclk_post_div = pll->ct.vclk_post_div_real; 1871 clk.dsp_xclks_per_row = dsp_config & 0x3fff; 1872 clk.dsp_loop_latency = (dsp_config >> 16) & 0xf; 1873 clk.dsp_precision = (dsp_config >> 20) & 7; 1874 clk.dsp_off = dsp_on_off & 0x7ff; 1875 clk.dsp_on = (dsp_on_off >> 16) & 0x7ff; 1876 if (copy_to_user((struct atyclk __user *) arg, &clk, 1877 sizeof(clk))) 1878 return -EFAULT; 1879 } else 1880 return -EINVAL; 1881 break; 1882 case ATYIO_CLKW: 1883 if (M64_HAS(INTEGRATED)) { 1884 struct atyclk clk; 1885 union aty_pll *pll = &par->pll; 1886 if (copy_from_user(&clk, (struct atyclk __user *) arg, 1887 sizeof(clk))) 1888 return -EFAULT; 1889 par->ref_clk_per = clk.ref_clk_per; 1890 pll->ct.pll_ref_div = clk.pll_ref_div; 1891 pll->ct.mclk_fb_div = clk.mclk_fb_div; 1892 pll->ct.mclk_post_div_real = clk.mclk_post_div; 1893 pll->ct.mclk_fb_mult = clk.mclk_fb_mult; 1894 pll->ct.xclk_post_div_real = clk.xclk_post_div; 1895 pll->ct.vclk_fb_div = clk.vclk_fb_div; 1896 pll->ct.vclk_post_div_real = clk.vclk_post_div; 1897 pll->ct.dsp_config = (clk.dsp_xclks_per_row & 0x3fff) | 1898 ((clk.dsp_loop_latency & 0xf) << 16) | 1899 ((clk.dsp_precision & 7) << 20); 1900 pll->ct.dsp_on_off = (clk.dsp_off & 0x7ff) | 1901 ((clk.dsp_on & 0x7ff) << 16); 1902 /*aty_calc_pll_ct(info, &pll->ct);*/ 1903 aty_set_pll_ct(info, pll); 1904 } else 1905 return -EINVAL; 1906 break; 1907 case ATYIO_FEATR: 1908 if (get_user(par->features, (u32 __user *) arg)) 1909 return -EFAULT; 1910 break; 1911 case ATYIO_FEATW: 1912 if (put_user(par->features, (u32 __user *) arg)) 1913 return -EFAULT; 1914 break; 1915 #endif /* DEBUG && CONFIG_FB_ATY_CT */ 1916 default: 1917 return -EINVAL; 1918 } 1919 return 0; 1920 } 1921 1922 static int atyfb_sync(struct fb_info *info) 1923 { 1924 struct atyfb_par *par = (struct atyfb_par *) info->par; 1925 1926 if (par->blitter_may_be_busy) 1927 wait_for_idle(par); 1928 return 0; 1929 } 1930 1931 #ifdef __sparc__ 1932 static int atyfb_mmap(struct fb_info *info, struct vm_area_struct *vma) 1933 { 1934 struct atyfb_par *par = (struct atyfb_par *) info->par; 1935 unsigned int size, page, map_size = 0; 1936 unsigned long map_offset = 0; 1937 unsigned long off; 1938 int i; 1939 1940 if (!par->mmap_map) 1941 return -ENXIO; 1942 1943 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) 1944 return -EINVAL; 1945 1946 off = vma->vm_pgoff << PAGE_SHIFT; 1947 size = vma->vm_end - vma->vm_start; 1948 1949 /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */ 1950 1951 if (((vma->vm_pgoff == 0) && (size == info->fix.smem_len)) || 1952 ((off == info->fix.smem_len) && (size == PAGE_SIZE))) 1953 off += 0x8000000000000000UL; 1954 1955 vma->vm_pgoff = off >> PAGE_SHIFT; /* propagate off changes */ 1956 1957 /* Each page, see which map applies */ 1958 for (page = 0; page < size;) { 1959 map_size = 0; 1960 for (i = 0; par->mmap_map[i].size; i++) { 1961 unsigned long start = par->mmap_map[i].voff; 1962 unsigned long end = start + par->mmap_map[i].size; 1963 unsigned long offset = off + page; 1964 1965 if (start > offset) 1966 continue; 1967 if (offset >= end) 1968 continue; 1969 1970 map_size = par->mmap_map[i].size - (offset - start); 1971 map_offset = par->mmap_map[i].poff + (offset - start); 1972 break; 1973 } 1974 if (!map_size) { 1975 page += PAGE_SIZE; 1976 continue; 1977 } 1978 if (page + map_size > size) 1979 map_size = size - page; 1980 1981 pgprot_val(vma->vm_page_prot) &= ~(par->mmap_map[i].prot_mask); 1982 pgprot_val(vma->vm_page_prot) |= par->mmap_map[i].prot_flag; 1983 1984 if (remap_pfn_range(vma, vma->vm_start + page, 1985 map_offset >> PAGE_SHIFT, map_size, vma->vm_page_prot)) 1986 return -EAGAIN; 1987 1988 page += map_size; 1989 } 1990 1991 if (!map_size) 1992 return -EINVAL; 1993 1994 if (!par->mmaped) 1995 par->mmaped = 1; 1996 return 0; 1997 } 1998 #endif /* __sparc__ */ 1999 2000 2001 2002 #if defined(CONFIG_PCI) 2003 2004 #ifdef CONFIG_PPC_PMAC 2005 /* Power management routines. Those are used for PowerBook sleep. 2006 */ 2007 static int aty_power_mgmt(int sleep, struct atyfb_par *par) 2008 { 2009 u32 pm; 2010 int timeout; 2011 2012 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2013 pm = (pm & ~PWR_MGT_MODE_MASK) | PWR_MGT_MODE_REG; 2014 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2015 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2016 2017 timeout = 2000; 2018 if (sleep) { 2019 /* Sleep */ 2020 pm &= ~PWR_MGT_ON; 2021 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2022 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2023 udelay(10); 2024 pm &= ~(PWR_BLON | AUTO_PWR_UP); 2025 pm |= SUSPEND_NOW; 2026 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2027 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2028 udelay(10); 2029 pm |= PWR_MGT_ON; 2030 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2031 do { 2032 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2033 mdelay(1); 2034 if ((--timeout) == 0) 2035 break; 2036 } while ((pm & PWR_MGT_STATUS_MASK) != PWR_MGT_STATUS_SUSPEND); 2037 } else { 2038 /* Wakeup */ 2039 pm &= ~PWR_MGT_ON; 2040 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2041 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2042 udelay(10); 2043 pm &= ~SUSPEND_NOW; 2044 pm |= (PWR_BLON | AUTO_PWR_UP); 2045 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2046 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2047 udelay(10); 2048 pm |= PWR_MGT_ON; 2049 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2050 do { 2051 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2052 mdelay(1); 2053 if ((--timeout) == 0) 2054 break; 2055 } while ((pm & PWR_MGT_STATUS_MASK) != 0); 2056 } 2057 mdelay(500); 2058 2059 return timeout ? 0 : -EIO; 2060 } 2061 #endif /* CONFIG_PPC_PMAC */ 2062 2063 static int atyfb_pci_suspend_late(struct device *dev, pm_message_t state) 2064 { 2065 struct pci_dev *pdev = to_pci_dev(dev); 2066 struct fb_info *info = pci_get_drvdata(pdev); 2067 struct atyfb_par *par = (struct atyfb_par *) info->par; 2068 2069 if (state.event == pdev->dev.power.power_state.event) 2070 return 0; 2071 2072 console_lock(); 2073 2074 fb_set_suspend(info, 1); 2075 2076 /* Idle & reset engine */ 2077 wait_for_idle(par); 2078 aty_reset_engine(par); 2079 2080 /* Blank display and LCD */ 2081 atyfb_blank(FB_BLANK_POWERDOWN, info); 2082 2083 par->asleep = 1; 2084 par->lock_blank = 1; 2085 2086 /* 2087 * Because we may change PCI D state ourselves, we need to 2088 * first save the config space content so the core can 2089 * restore it properly on resume. 2090 */ 2091 2092 #ifdef CONFIG_PPC_PMAC 2093 /* Set chip to "suspend" mode */ 2094 if (machine_is(powermac) && aty_power_mgmt(1, par)) { 2095 par->asleep = 0; 2096 par->lock_blank = 0; 2097 atyfb_blank(FB_BLANK_UNBLANK, info); 2098 fb_set_suspend(info, 0); 2099 console_unlock(); 2100 return -EIO; 2101 } 2102 #endif 2103 2104 console_unlock(); 2105 2106 pdev->dev.power.power_state = state; 2107 2108 return 0; 2109 } 2110 2111 static int __maybe_unused atyfb_pci_suspend(struct device *dev) 2112 { 2113 return atyfb_pci_suspend_late(dev, PMSG_SUSPEND); 2114 } 2115 2116 static int __maybe_unused atyfb_pci_hibernate(struct device *dev) 2117 { 2118 return atyfb_pci_suspend_late(dev, PMSG_HIBERNATE); 2119 } 2120 2121 static int __maybe_unused atyfb_pci_freeze(struct device *dev) 2122 { 2123 return atyfb_pci_suspend_late(dev, PMSG_FREEZE); 2124 } 2125 2126 static void aty_resume_chip(struct fb_info *info) 2127 { 2128 struct atyfb_par *par = info->par; 2129 2130 aty_st_le32(MEM_CNTL, par->mem_cntl, par); 2131 2132 if (par->pll_ops->resume_pll) 2133 par->pll_ops->resume_pll(info, &par->pll); 2134 2135 if (par->aux_start) 2136 aty_st_le32(BUS_CNTL, 2137 aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par); 2138 } 2139 2140 static int __maybe_unused atyfb_pci_resume(struct device *dev) 2141 { 2142 struct pci_dev *pdev = to_pci_dev(dev); 2143 struct fb_info *info = pci_get_drvdata(pdev); 2144 struct atyfb_par *par = (struct atyfb_par *) info->par; 2145 2146 if (pdev->dev.power.power_state.event == PM_EVENT_ON) 2147 return 0; 2148 2149 console_lock(); 2150 2151 /* 2152 * PCI state will have been restored by the core, so 2153 * we should be in D0 now with our config space fully 2154 * restored 2155 */ 2156 2157 #ifdef CONFIG_PPC_PMAC 2158 if (machine_is(powermac) && 2159 pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) 2160 aty_power_mgmt(0, par); 2161 #endif 2162 2163 aty_resume_chip(info); 2164 2165 par->asleep = 0; 2166 2167 /* Restore display */ 2168 atyfb_set_par(info); 2169 2170 /* Refresh */ 2171 fb_set_suspend(info, 0); 2172 2173 /* Unblank */ 2174 par->lock_blank = 0; 2175 atyfb_blank(FB_BLANK_UNBLANK, info); 2176 2177 console_unlock(); 2178 2179 pdev->dev.power.power_state = PMSG_ON; 2180 2181 return 0; 2182 } 2183 2184 static const struct dev_pm_ops atyfb_pci_pm_ops = { 2185 #ifdef CONFIG_PM_SLEEP 2186 .suspend = atyfb_pci_suspend, 2187 .resume = atyfb_pci_resume, 2188 .freeze = atyfb_pci_freeze, 2189 .thaw = atyfb_pci_resume, 2190 .poweroff = atyfb_pci_hibernate, 2191 .restore = atyfb_pci_resume, 2192 #endif /* CONFIG_PM_SLEEP */ 2193 }; 2194 2195 #endif /* defined(CONFIG_PCI) */ 2196 2197 /* Backlight */ 2198 #ifdef CONFIG_FB_ATY_BACKLIGHT 2199 #define MAX_LEVEL 0xFF 2200 2201 static int aty_bl_get_level_brightness(struct atyfb_par *par, int level) 2202 { 2203 struct fb_info *info = pci_get_drvdata(par->pdev); 2204 int atylevel; 2205 2206 /* Get and convert the value */ 2207 /* No locking of bl_curve since we read a single value */ 2208 atylevel = info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_LEVEL; 2209 2210 if (atylevel < 0) 2211 atylevel = 0; 2212 else if (atylevel > MAX_LEVEL) 2213 atylevel = MAX_LEVEL; 2214 2215 return atylevel; 2216 } 2217 2218 static int aty_bl_update_status(struct backlight_device *bd) 2219 { 2220 struct atyfb_par *par = bl_get_data(bd); 2221 unsigned int reg = aty_ld_lcd(LCD_MISC_CNTL, par); 2222 int level = backlight_get_brightness(bd); 2223 2224 reg |= (BLMOD_EN | BIASMOD_EN); 2225 if (level > 0) { 2226 reg &= ~BIAS_MOD_LEVEL_MASK; 2227 reg |= (aty_bl_get_level_brightness(par, level) << BIAS_MOD_LEVEL_SHIFT); 2228 } else { 2229 reg &= ~BIAS_MOD_LEVEL_MASK; 2230 reg |= (aty_bl_get_level_brightness(par, 0) << BIAS_MOD_LEVEL_SHIFT); 2231 } 2232 aty_st_lcd(LCD_MISC_CNTL, reg, par); 2233 2234 return 0; 2235 } 2236 2237 static const struct backlight_ops aty_bl_data = { 2238 .update_status = aty_bl_update_status, 2239 }; 2240 2241 static void aty_bl_init(struct atyfb_par *par) 2242 { 2243 struct backlight_properties props; 2244 struct fb_info *info = pci_get_drvdata(par->pdev); 2245 struct backlight_device *bd; 2246 char name[12]; 2247 2248 #ifdef CONFIG_PMAC_BACKLIGHT 2249 if (!pmac_has_backlight_type("ati")) 2250 return; 2251 #endif 2252 2253 snprintf(name, sizeof(name), "atybl%d", info->node); 2254 2255 memset(&props, 0, sizeof(struct backlight_properties)); 2256 props.type = BACKLIGHT_RAW; 2257 props.max_brightness = FB_BACKLIGHT_LEVELS - 1; 2258 bd = backlight_device_register(name, info->device, par, &aty_bl_data, 2259 &props); 2260 if (IS_ERR(bd)) { 2261 info->bl_dev = NULL; 2262 printk(KERN_WARNING "aty: Backlight registration failed\n"); 2263 goto error; 2264 } 2265 2266 info->bl_dev = bd; 2267 fb_bl_default_curve(info, 0, 2268 0x3F * FB_BACKLIGHT_MAX / MAX_LEVEL, 2269 0xFF * FB_BACKLIGHT_MAX / MAX_LEVEL); 2270 2271 bd->props.brightness = bd->props.max_brightness; 2272 bd->props.power = FB_BLANK_UNBLANK; 2273 backlight_update_status(bd); 2274 2275 printk("aty: Backlight initialized (%s)\n", name); 2276 2277 return; 2278 2279 error: 2280 return; 2281 } 2282 2283 #ifdef CONFIG_PCI 2284 static void aty_bl_exit(struct backlight_device *bd) 2285 { 2286 backlight_device_unregister(bd); 2287 printk("aty: Backlight unloaded\n"); 2288 } 2289 #endif /* CONFIG_PCI */ 2290 2291 #endif /* CONFIG_FB_ATY_BACKLIGHT */ 2292 2293 static void aty_calc_mem_refresh(struct atyfb_par *par, int xclk) 2294 { 2295 static const int ragepro_tbl[] = { 2296 44, 50, 55, 66, 75, 80, 100 2297 }; 2298 static const int ragexl_tbl[] = { 2299 50, 66, 75, 83, 90, 95, 100, 105, 2300 110, 115, 120, 125, 133, 143, 166 2301 }; 2302 const int *refresh_tbl; 2303 int i, size; 2304 2305 if (M64_HAS(XL_MEM)) { 2306 refresh_tbl = ragexl_tbl; 2307 size = ARRAY_SIZE(ragexl_tbl); 2308 } else { 2309 refresh_tbl = ragepro_tbl; 2310 size = ARRAY_SIZE(ragepro_tbl); 2311 } 2312 2313 for (i = 0; i < size; i++) { 2314 if (xclk < refresh_tbl[i]) 2315 break; 2316 } 2317 par->mem_refresh_rate = i; 2318 } 2319 2320 /* 2321 * Initialisation 2322 */ 2323 2324 static struct fb_info *fb_list = NULL; 2325 2326 #if defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD) 2327 static int atyfb_get_timings_from_lcd(struct atyfb_par *par, 2328 struct fb_var_screeninfo *var) 2329 { 2330 int ret = -EINVAL; 2331 2332 if (par->lcd_table != 0 && (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) { 2333 *var = default_var; 2334 var->xres = var->xres_virtual = par->lcd_hdisp; 2335 var->right_margin = par->lcd_right_margin; 2336 var->left_margin = par->lcd_hblank_len - 2337 (par->lcd_right_margin + par->lcd_hsync_dly + 2338 par->lcd_hsync_len); 2339 var->hsync_len = par->lcd_hsync_len + par->lcd_hsync_dly; 2340 var->yres = var->yres_virtual = par->lcd_vdisp; 2341 var->lower_margin = par->lcd_lower_margin; 2342 var->upper_margin = par->lcd_vblank_len - 2343 (par->lcd_lower_margin + par->lcd_vsync_len); 2344 var->vsync_len = par->lcd_vsync_len; 2345 var->pixclock = par->lcd_pixclock; 2346 ret = 0; 2347 } 2348 2349 return ret; 2350 } 2351 #endif /* defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD) */ 2352 2353 static int aty_init(struct fb_info *info) 2354 { 2355 struct atyfb_par *par = (struct atyfb_par *) info->par; 2356 const char *ramname = NULL, *xtal; 2357 int gtb_memsize, has_var = 0; 2358 struct fb_var_screeninfo var; 2359 int ret; 2360 #ifdef CONFIG_ATARI 2361 u8 dac_type; 2362 #endif 2363 2364 init_waitqueue_head(&par->vblank.wait); 2365 spin_lock_init(&par->int_lock); 2366 2367 #ifdef CONFIG_FB_ATY_GX 2368 if (!M64_HAS(INTEGRATED)) { 2369 u32 stat0; 2370 u8 dac_subtype, clk_type; 2371 stat0 = aty_ld_le32(CNFG_STAT0, par); 2372 par->bus_type = (stat0 >> 0) & 0x07; 2373 par->ram_type = (stat0 >> 3) & 0x07; 2374 ramname = aty_gx_ram[par->ram_type]; 2375 /* FIXME: clockchip/RAMDAC probing? */ 2376 #ifdef CONFIG_ATARI 2377 clk_type = CLK_ATI18818_1; 2378 dac_type = (stat0 >> 9) & 0x07; 2379 if (dac_type == 0x07) 2380 dac_subtype = DAC_ATT20C408; 2381 else 2382 dac_subtype = (aty_ld_8(SCRATCH_REG1 + 1, par) & 0xF0) | dac_type; 2383 #else 2384 dac_subtype = DAC_IBMRGB514; 2385 clk_type = CLK_IBMRGB514; 2386 #endif 2387 switch (dac_subtype) { 2388 case DAC_IBMRGB514: 2389 par->dac_ops = &aty_dac_ibm514; 2390 break; 2391 #ifdef CONFIG_ATARI 2392 case DAC_ATI68860_B: 2393 case DAC_ATI68860_C: 2394 par->dac_ops = &aty_dac_ati68860b; 2395 break; 2396 case DAC_ATT20C408: 2397 case DAC_ATT21C498: 2398 par->dac_ops = &aty_dac_att21c498; 2399 break; 2400 #endif 2401 default: 2402 PRINTKI("aty_init: DAC type not implemented yet!\n"); 2403 par->dac_ops = &aty_dac_unsupported; 2404 break; 2405 } 2406 switch (clk_type) { 2407 #ifdef CONFIG_ATARI 2408 case CLK_ATI18818_1: 2409 par->pll_ops = &aty_pll_ati18818_1; 2410 break; 2411 #else 2412 case CLK_IBMRGB514: 2413 par->pll_ops = &aty_pll_ibm514; 2414 break; 2415 #endif 2416 default: 2417 PRINTKI("aty_init: CLK type not implemented yet!"); 2418 par->pll_ops = &aty_pll_unsupported; 2419 break; 2420 } 2421 } 2422 #endif /* CONFIG_FB_ATY_GX */ 2423 #ifdef CONFIG_FB_ATY_CT 2424 if (M64_HAS(INTEGRATED)) { 2425 par->dac_ops = &aty_dac_ct; 2426 par->pll_ops = &aty_pll_ct; 2427 par->bus_type = PCI; 2428 par->ram_type = (aty_ld_le32(CNFG_STAT0, par) & 0x07); 2429 if (M64_HAS(XL_MEM)) 2430 ramname = aty_xl_ram[par->ram_type]; 2431 else 2432 ramname = aty_ct_ram[par->ram_type]; 2433 /* for many chips, the mclk is 67 MHz for SDRAM, 63 MHz otherwise */ 2434 if (par->pll_limits.mclk == 67 && par->ram_type < SDRAM) 2435 par->pll_limits.mclk = 63; 2436 /* Mobility + 32bit memory interface need halved XCLK. */ 2437 if (M64_HAS(MOBIL_BUS) && par->ram_type == SDRAM32) 2438 par->pll_limits.xclk = (par->pll_limits.xclk + 1) >> 1; 2439 } 2440 #endif 2441 #ifdef CONFIG_PPC_PMAC 2442 /* 2443 * The Apple iBook1 uses non-standard memory frequencies. 2444 * We detect it and set the frequency manually. 2445 */ 2446 if (of_machine_is_compatible("PowerBook2,1")) { 2447 par->pll_limits.mclk = 70; 2448 par->pll_limits.xclk = 53; 2449 } 2450 #endif 2451 2452 /* Allow command line to override clocks. */ 2453 if (pll) 2454 par->pll_limits.pll_max = pll; 2455 if (mclk) 2456 par->pll_limits.mclk = mclk; 2457 if (xclk) 2458 par->pll_limits.xclk = xclk; 2459 2460 aty_calc_mem_refresh(par, par->pll_limits.xclk); 2461 par->pll_per = 1000000/par->pll_limits.pll_max; 2462 par->mclk_per = 1000000/par->pll_limits.mclk; 2463 par->xclk_per = 1000000/par->pll_limits.xclk; 2464 2465 par->ref_clk_per = 1000000000000ULL / 14318180; 2466 xtal = "14.31818"; 2467 2468 #ifdef CONFIG_FB_ATY_CT 2469 if (M64_HAS(GTB_DSP)) { 2470 u8 pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par); 2471 2472 if (pll_ref_div) { 2473 int diff1, diff2; 2474 diff1 = 510 * 14 / pll_ref_div - par->pll_limits.pll_max; 2475 diff2 = 510 * 29 / pll_ref_div - par->pll_limits.pll_max; 2476 if (diff1 < 0) 2477 diff1 = -diff1; 2478 if (diff2 < 0) 2479 diff2 = -diff2; 2480 if (diff2 < diff1) { 2481 par->ref_clk_per = 1000000000000ULL / 29498928; 2482 xtal = "29.498928"; 2483 } 2484 } 2485 } 2486 #endif /* CONFIG_FB_ATY_CT */ 2487 2488 /* save previous video mode */ 2489 aty_get_crtc(par, &par->saved_crtc); 2490 if (par->pll_ops->get_pll) 2491 par->pll_ops->get_pll(info, &par->saved_pll); 2492 2493 par->mem_cntl = aty_ld_le32(MEM_CNTL, par); 2494 gtb_memsize = M64_HAS(GTB_DSP); 2495 if (gtb_memsize) 2496 /* 0xF used instead of MEM_SIZE_ALIAS */ 2497 switch (par->mem_cntl & 0xF) { 2498 case MEM_SIZE_512K: 2499 info->fix.smem_len = 0x80000; 2500 break; 2501 case MEM_SIZE_1M: 2502 info->fix.smem_len = 0x100000; 2503 break; 2504 case MEM_SIZE_2M_GTB: 2505 info->fix.smem_len = 0x200000; 2506 break; 2507 case MEM_SIZE_4M_GTB: 2508 info->fix.smem_len = 0x400000; 2509 break; 2510 case MEM_SIZE_6M_GTB: 2511 info->fix.smem_len = 0x600000; 2512 break; 2513 case MEM_SIZE_8M_GTB: 2514 info->fix.smem_len = 0x800000; 2515 break; 2516 default: 2517 info->fix.smem_len = 0x80000; 2518 } else 2519 switch (par->mem_cntl & MEM_SIZE_ALIAS) { 2520 case MEM_SIZE_512K: 2521 info->fix.smem_len = 0x80000; 2522 break; 2523 case MEM_SIZE_1M: 2524 info->fix.smem_len = 0x100000; 2525 break; 2526 case MEM_SIZE_2M: 2527 info->fix.smem_len = 0x200000; 2528 break; 2529 case MEM_SIZE_4M: 2530 info->fix.smem_len = 0x400000; 2531 break; 2532 case MEM_SIZE_6M: 2533 info->fix.smem_len = 0x600000; 2534 break; 2535 case MEM_SIZE_8M: 2536 info->fix.smem_len = 0x800000; 2537 break; 2538 default: 2539 info->fix.smem_len = 0x80000; 2540 } 2541 2542 if (M64_HAS(MAGIC_VRAM_SIZE)) { 2543 if (aty_ld_le32(CNFG_STAT1, par) & 0x40000000) 2544 info->fix.smem_len += 0x400000; 2545 } 2546 2547 if (vram) { 2548 info->fix.smem_len = vram * 1024; 2549 par->mem_cntl &= ~(gtb_memsize ? 0xF : MEM_SIZE_ALIAS); 2550 if (info->fix.smem_len <= 0x80000) 2551 par->mem_cntl |= MEM_SIZE_512K; 2552 else if (info->fix.smem_len <= 0x100000) 2553 par->mem_cntl |= MEM_SIZE_1M; 2554 else if (info->fix.smem_len <= 0x200000) 2555 par->mem_cntl |= gtb_memsize ? MEM_SIZE_2M_GTB : MEM_SIZE_2M; 2556 else if (info->fix.smem_len <= 0x400000) 2557 par->mem_cntl |= gtb_memsize ? MEM_SIZE_4M_GTB : MEM_SIZE_4M; 2558 else if (info->fix.smem_len <= 0x600000) 2559 par->mem_cntl |= gtb_memsize ? MEM_SIZE_6M_GTB : MEM_SIZE_6M; 2560 else 2561 par->mem_cntl |= gtb_memsize ? MEM_SIZE_8M_GTB : MEM_SIZE_8M; 2562 aty_st_le32(MEM_CNTL, par->mem_cntl, par); 2563 } 2564 2565 /* 2566 * Reg Block 0 (CT-compatible block) is at mmio_start 2567 * Reg Block 1 (multimedia extensions) is at mmio_start - 0x400 2568 */ 2569 if (M64_HAS(GX)) { 2570 info->fix.mmio_len = 0x400; 2571 info->fix.accel = FB_ACCEL_ATI_MACH64GX; 2572 } else if (M64_HAS(CT)) { 2573 info->fix.mmio_len = 0x400; 2574 info->fix.accel = FB_ACCEL_ATI_MACH64CT; 2575 } else if (M64_HAS(VT)) { 2576 info->fix.mmio_start -= 0x400; 2577 info->fix.mmio_len = 0x800; 2578 info->fix.accel = FB_ACCEL_ATI_MACH64VT; 2579 } else {/* GT */ 2580 info->fix.mmio_start -= 0x400; 2581 info->fix.mmio_len = 0x800; 2582 info->fix.accel = FB_ACCEL_ATI_MACH64GT; 2583 } 2584 2585 PRINTKI("%d%c %s, %s MHz XTAL, %d MHz PLL, %d Mhz MCLK, %d MHz XCLK\n", 2586 info->fix.smem_len == 0x80000 ? 512 : (info->fix.smem_len>>20), 2587 info->fix.smem_len == 0x80000 ? 'K' : 'M', ramname, xtal, 2588 par->pll_limits.pll_max, par->pll_limits.mclk, 2589 par->pll_limits.xclk); 2590 2591 #if defined(DEBUG) && defined(CONFIG_FB_ATY_CT) 2592 if (M64_HAS(INTEGRATED)) { 2593 int i; 2594 printk("debug atyfb: BUS_CNTL DAC_CNTL MEM_CNTL " 2595 "EXT_MEM_CNTL CRTC_GEN_CNTL DSP_CONFIG " 2596 "DSP_ON_OFF CLOCK_CNTL\n" 2597 "debug atyfb: %08x %08x %08x " 2598 "%08x %08x %08x " 2599 "%08x %08x\n" 2600 "debug atyfb: PLL", 2601 aty_ld_le32(BUS_CNTL, par), 2602 aty_ld_le32(DAC_CNTL, par), 2603 aty_ld_le32(MEM_CNTL, par), 2604 aty_ld_le32(EXT_MEM_CNTL, par), 2605 aty_ld_le32(CRTC_GEN_CNTL, par), 2606 aty_ld_le32(DSP_CONFIG, par), 2607 aty_ld_le32(DSP_ON_OFF, par), 2608 aty_ld_le32(CLOCK_CNTL, par)); 2609 for (i = 0; i < 40; i++) 2610 pr_cont(" %02x", aty_ld_pll_ct(i, par)); 2611 pr_cont("\n"); 2612 } 2613 #endif 2614 if (par->pll_ops->init_pll) 2615 par->pll_ops->init_pll(info, &par->pll); 2616 if (par->pll_ops->resume_pll) 2617 par->pll_ops->resume_pll(info, &par->pll); 2618 2619 aty_fudge_framebuffer_len(info); 2620 2621 /* 2622 * Disable register access through the linear aperture 2623 * if the auxiliary aperture is used so we can access 2624 * the full 8 MB of video RAM on 8 MB boards. 2625 */ 2626 if (par->aux_start) 2627 aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL, par) | 2628 BUS_APER_REG_DIS, par); 2629 2630 if (!nomtrr) 2631 /* 2632 * Only the ioremap_wc()'d area will get WC here 2633 * since ioremap_uc() was used on the entire PCI BAR. 2634 */ 2635 par->wc_cookie = arch_phys_wc_add(par->res_start, 2636 par->res_size); 2637 2638 info->fbops = &atyfb_ops; 2639 info->pseudo_palette = par->pseudo_palette; 2640 info->flags = FBINFO_DEFAULT | 2641 FBINFO_HWACCEL_IMAGEBLIT | 2642 FBINFO_HWACCEL_FILLRECT | 2643 FBINFO_HWACCEL_COPYAREA | 2644 FBINFO_HWACCEL_YPAN | 2645 FBINFO_READS_FAST; 2646 2647 #ifdef CONFIG_PMAC_BACKLIGHT 2648 if (M64_HAS(G3_PB_1_1) && of_machine_is_compatible("PowerBook1,1")) { 2649 /* 2650 * these bits let the 101 powerbook 2651 * wake up from sleep -- paulus 2652 */ 2653 aty_st_lcd(POWER_MANAGEMENT, aty_ld_lcd(POWER_MANAGEMENT, par) | 2654 USE_F32KHZ | TRISTATE_MEM_EN, par); 2655 } else 2656 #endif 2657 2658 memset(&var, 0, sizeof(var)); 2659 #ifdef CONFIG_PPC 2660 if (machine_is(powermac)) { 2661 /* 2662 * FIXME: The NVRAM stuff should be put in a Mac-specific file, 2663 * as it applies to all Mac video cards 2664 */ 2665 if (mode) { 2666 if (mac_find_mode(&var, info, mode, 8)) 2667 has_var = 1; 2668 } else { 2669 if (default_vmode == VMODE_CHOOSE) { 2670 int sense; 2671 if (M64_HAS(G3_PB_1024x768)) 2672 /* G3 PowerBook with 1024x768 LCD */ 2673 default_vmode = VMODE_1024_768_60; 2674 else if (of_machine_is_compatible("iMac")) 2675 default_vmode = VMODE_1024_768_75; 2676 else if (of_machine_is_compatible("PowerBook2,1")) 2677 /* iBook with 800x600 LCD */ 2678 default_vmode = VMODE_800_600_60; 2679 else 2680 default_vmode = VMODE_640_480_67; 2681 sense = read_aty_sense(par); 2682 PRINTKI("monitor sense=%x, mode %d\n", 2683 sense, mac_map_monitor_sense(sense)); 2684 } 2685 if (default_vmode <= 0 || default_vmode > VMODE_MAX) 2686 default_vmode = VMODE_640_480_60; 2687 if (default_cmode < CMODE_8 || default_cmode > CMODE_32) 2688 default_cmode = CMODE_8; 2689 if (!mac_vmode_to_var(default_vmode, default_cmode, 2690 &var)) 2691 has_var = 1; 2692 } 2693 } 2694 2695 #endif /* !CONFIG_PPC */ 2696 2697 #if defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD) 2698 if (!atyfb_get_timings_from_lcd(par, &var)) 2699 has_var = 1; 2700 #endif 2701 2702 if (mode && fb_find_mode(&var, info, mode, NULL, 0, &defmode, 8)) 2703 has_var = 1; 2704 2705 if (!has_var) 2706 var = default_var; 2707 2708 if (noaccel) 2709 var.accel_flags &= ~FB_ACCELF_TEXT; 2710 else 2711 var.accel_flags |= FB_ACCELF_TEXT; 2712 2713 if (comp_sync != -1) { 2714 if (!comp_sync) 2715 var.sync &= ~FB_SYNC_COMP_HIGH_ACT; 2716 else 2717 var.sync |= FB_SYNC_COMP_HIGH_ACT; 2718 } 2719 2720 if (var.yres == var.yres_virtual) { 2721 u32 videoram = (info->fix.smem_len - (PAGE_SIZE << 2)); 2722 var.yres_virtual = ((videoram * 8) / var.bits_per_pixel) / var.xres_virtual; 2723 if (var.yres_virtual < var.yres) 2724 var.yres_virtual = var.yres; 2725 } 2726 2727 ret = atyfb_check_var(&var, info); 2728 if (ret) { 2729 PRINTKE("can't set default video mode\n"); 2730 goto aty_init_exit; 2731 } 2732 2733 #ifdef CONFIG_FB_ATY_CT 2734 if (!noaccel && M64_HAS(INTEGRATED)) 2735 aty_init_cursor(info, &atyfb_ops); 2736 #endif /* CONFIG_FB_ATY_CT */ 2737 info->var = var; 2738 2739 ret = fb_alloc_cmap(&info->cmap, 256, 0); 2740 if (ret < 0) 2741 goto aty_init_exit; 2742 2743 ret = register_framebuffer(info); 2744 if (ret < 0) { 2745 fb_dealloc_cmap(&info->cmap); 2746 goto aty_init_exit; 2747 } 2748 2749 if (M64_HAS(MOBIL_BUS) && backlight) { 2750 #ifdef CONFIG_FB_ATY_BACKLIGHT 2751 aty_bl_init(par); 2752 #endif 2753 } 2754 2755 fb_list = info; 2756 2757 PRINTKI("fb%d: %s frame buffer device on %s\n", 2758 info->node, info->fix.id, par->bus_type == ISA ? "ISA" : "PCI"); 2759 return 0; 2760 2761 aty_init_exit: 2762 /* restore video mode */ 2763 aty_set_crtc(par, &par->saved_crtc); 2764 par->pll_ops->set_pll(info, &par->saved_pll); 2765 arch_phys_wc_del(par->wc_cookie); 2766 2767 return ret; 2768 } 2769 2770 #if defined(CONFIG_ATARI) && !defined(MODULE) 2771 static int store_video_par(char *video_str, unsigned char m64_num) 2772 { 2773 char *p; 2774 unsigned long vmembase, size, guiregbase; 2775 2776 PRINTKI("store_video_par() '%s' \n", video_str); 2777 2778 if (!(p = strsep(&video_str, ";")) || !*p) 2779 goto mach64_invalid; 2780 vmembase = simple_strtoul(p, NULL, 0); 2781 if (!(p = strsep(&video_str, ";")) || !*p) 2782 goto mach64_invalid; 2783 size = simple_strtoul(p, NULL, 0); 2784 if (!(p = strsep(&video_str, ";")) || !*p) 2785 goto mach64_invalid; 2786 guiregbase = simple_strtoul(p, NULL, 0); 2787 2788 phys_vmembase[m64_num] = vmembase; 2789 phys_size[m64_num] = size; 2790 phys_guiregbase[m64_num] = guiregbase; 2791 PRINTKI("stored them all: $%08lX $%08lX $%08lX \n", vmembase, size, 2792 guiregbase); 2793 return 0; 2794 2795 mach64_invalid: 2796 phys_vmembase[m64_num] = 0; 2797 return -1; 2798 } 2799 #endif /* CONFIG_ATARI && !MODULE */ 2800 2801 /* 2802 * Blank the display. 2803 */ 2804 2805 static int atyfb_blank(int blank, struct fb_info *info) 2806 { 2807 struct atyfb_par *par = (struct atyfb_par *) info->par; 2808 u32 gen_cntl; 2809 2810 if (par->lock_blank || par->asleep) 2811 return 0; 2812 2813 #ifdef CONFIG_FB_ATY_GENERIC_LCD 2814 if (par->lcd_table && blank > FB_BLANK_NORMAL && 2815 (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) { 2816 u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2817 pm &= ~PWR_BLON; 2818 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2819 } 2820 #endif 2821 2822 gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par); 2823 gen_cntl &= ~0x400004c; 2824 switch (blank) { 2825 case FB_BLANK_UNBLANK: 2826 break; 2827 case FB_BLANK_NORMAL: 2828 gen_cntl |= 0x4000040; 2829 break; 2830 case FB_BLANK_VSYNC_SUSPEND: 2831 gen_cntl |= 0x4000048; 2832 break; 2833 case FB_BLANK_HSYNC_SUSPEND: 2834 gen_cntl |= 0x4000044; 2835 break; 2836 case FB_BLANK_POWERDOWN: 2837 gen_cntl |= 0x400004c; 2838 break; 2839 } 2840 aty_st_le32(CRTC_GEN_CNTL, gen_cntl, par); 2841 2842 #ifdef CONFIG_FB_ATY_GENERIC_LCD 2843 if (par->lcd_table && blank <= FB_BLANK_NORMAL && 2844 (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) { 2845 u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par); 2846 pm |= PWR_BLON; 2847 aty_st_lcd(POWER_MANAGEMENT, pm, par); 2848 } 2849 #endif 2850 2851 return 0; 2852 } 2853 2854 static void aty_st_pal(u_int regno, u_int red, u_int green, u_int blue, 2855 const struct atyfb_par *par) 2856 { 2857 aty_st_8(DAC_W_INDEX, regno, par); 2858 aty_st_8(DAC_DATA, red, par); 2859 aty_st_8(DAC_DATA, green, par); 2860 aty_st_8(DAC_DATA, blue, par); 2861 } 2862 2863 /* 2864 * Set a single color register. The values supplied are already 2865 * rounded down to the hardware's capabilities (according to the 2866 * entries in the var structure). Return != 0 for invalid regno. 2867 * !! 4 & 8 = PSEUDO, > 8 = DIRECTCOLOR 2868 */ 2869 2870 static int atyfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, 2871 u_int transp, struct fb_info *info) 2872 { 2873 struct atyfb_par *par = (struct atyfb_par *) info->par; 2874 int i, depth; 2875 u32 *pal = info->pseudo_palette; 2876 2877 depth = info->var.bits_per_pixel; 2878 if (depth == 16) 2879 depth = (info->var.green.length == 5) ? 15 : 16; 2880 2881 if (par->asleep) 2882 return 0; 2883 2884 if (regno > 255 || 2885 (depth == 16 && regno > 63) || 2886 (depth == 15 && regno > 31)) 2887 return 1; 2888 2889 red >>= 8; 2890 green >>= 8; 2891 blue >>= 8; 2892 2893 par->palette[regno].red = red; 2894 par->palette[regno].green = green; 2895 par->palette[regno].blue = blue; 2896 2897 if (regno < 16) { 2898 switch (depth) { 2899 case 15: 2900 pal[regno] = (regno << 10) | (regno << 5) | regno; 2901 break; 2902 case 16: 2903 pal[regno] = (regno << 11) | (regno << 5) | regno; 2904 break; 2905 case 24: 2906 pal[regno] = (regno << 16) | (regno << 8) | regno; 2907 break; 2908 case 32: 2909 i = (regno << 8) | regno; 2910 pal[regno] = (i << 16) | i; 2911 break; 2912 } 2913 } 2914 2915 i = aty_ld_8(DAC_CNTL, par) & 0xfc; 2916 if (M64_HAS(EXTRA_BRIGHT)) 2917 i |= 0x2; /* DAC_CNTL | 0x2 turns off the extra brightness for gt */ 2918 aty_st_8(DAC_CNTL, i, par); 2919 aty_st_8(DAC_MASK, 0xff, par); 2920 2921 if (M64_HAS(INTEGRATED)) { 2922 if (depth == 16) { 2923 if (regno < 32) 2924 aty_st_pal(regno << 3, red, 2925 par->palette[regno << 1].green, 2926 blue, par); 2927 red = par->palette[regno >> 1].red; 2928 blue = par->palette[regno >> 1].blue; 2929 regno <<= 2; 2930 } else if (depth == 15) { 2931 regno <<= 3; 2932 for (i = 0; i < 8; i++) 2933 aty_st_pal(regno + i, red, green, blue, par); 2934 } 2935 } 2936 aty_st_pal(regno, red, green, blue, par); 2937 2938 return 0; 2939 } 2940 2941 #ifdef CONFIG_PCI 2942 2943 #ifdef __sparc__ 2944 2945 static int atyfb_setup_sparc(struct pci_dev *pdev, struct fb_info *info, 2946 unsigned long addr) 2947 { 2948 struct atyfb_par *par = info->par; 2949 struct device_node *dp; 2950 u32 mem, chip_id; 2951 int i, j, ret; 2952 2953 /* 2954 * Map memory-mapped registers. 2955 */ 2956 par->ati_regbase = (void *)addr + 0x7ffc00UL; 2957 info->fix.mmio_start = addr + 0x7ffc00UL; 2958 2959 /* 2960 * Map in big-endian aperture. 2961 */ 2962 info->screen_base = (char *) (addr + 0x800000UL); 2963 info->fix.smem_start = addr + 0x800000UL; 2964 2965 /* 2966 * Figure mmap addresses from PCI config space. 2967 * Split Framebuffer in big- and little-endian halfs. 2968 */ 2969 for (i = 0; i < 6 && pdev->resource[i].start; i++) 2970 /* nothing */ ; 2971 j = i + 4; 2972 2973 par->mmap_map = kcalloc(j, sizeof(*par->mmap_map), GFP_ATOMIC); 2974 if (!par->mmap_map) { 2975 PRINTKE("atyfb_setup_sparc() can't alloc mmap_map\n"); 2976 return -ENOMEM; 2977 } 2978 2979 for (i = 0, j = 2; i < 6 && pdev->resource[i].start; i++) { 2980 struct resource *rp = &pdev->resource[i]; 2981 int io, breg = PCI_BASE_ADDRESS_0 + (i << 2); 2982 unsigned long base; 2983 u32 size, pbase; 2984 2985 base = rp->start; 2986 2987 io = (rp->flags & IORESOURCE_IO); 2988 2989 size = rp->end - base + 1; 2990 2991 pci_read_config_dword(pdev, breg, &pbase); 2992 2993 if (io) 2994 size &= ~1; 2995 2996 /* 2997 * Map the framebuffer a second time, this time without 2998 * the braindead _PAGE_IE setting. This is used by the 2999 * fixed Xserver, but we need to maintain the old mapping 3000 * to stay compatible with older ones... 3001 */ 3002 if (base == addr) { 3003 par->mmap_map[j].voff = (pbase + 0x10000000) & PAGE_MASK; 3004 par->mmap_map[j].poff = base & PAGE_MASK; 3005 par->mmap_map[j].size = (size + ~PAGE_MASK) & PAGE_MASK; 3006 par->mmap_map[j].prot_mask = _PAGE_CACHE; 3007 par->mmap_map[j].prot_flag = _PAGE_E; 3008 j++; 3009 } 3010 3011 /* 3012 * Here comes the old framebuffer mapping with _PAGE_IE 3013 * set for the big endian half of the framebuffer... 3014 */ 3015 if (base == addr) { 3016 par->mmap_map[j].voff = (pbase + 0x800000) & PAGE_MASK; 3017 par->mmap_map[j].poff = (base + 0x800000) & PAGE_MASK; 3018 par->mmap_map[j].size = 0x800000; 3019 par->mmap_map[j].prot_mask = _PAGE_CACHE; 3020 par->mmap_map[j].prot_flag = _PAGE_E | _PAGE_IE; 3021 size -= 0x800000; 3022 j++; 3023 } 3024 3025 par->mmap_map[j].voff = pbase & PAGE_MASK; 3026 par->mmap_map[j].poff = base & PAGE_MASK; 3027 par->mmap_map[j].size = (size + ~PAGE_MASK) & PAGE_MASK; 3028 par->mmap_map[j].prot_mask = _PAGE_CACHE; 3029 par->mmap_map[j].prot_flag = _PAGE_E; 3030 j++; 3031 } 3032 3033 ret = correct_chipset(par); 3034 if (ret) 3035 return ret; 3036 3037 if (IS_XL(pdev->device)) { 3038 /* 3039 * Fix PROMs idea of MEM_CNTL settings... 3040 */ 3041 mem = aty_ld_le32(MEM_CNTL, par); 3042 chip_id = aty_ld_le32(CNFG_CHIP_ID, par); 3043 if (((chip_id & CFG_CHIP_TYPE) == VT_CHIP_ID) && !((chip_id >> 24) & 1)) { 3044 switch (mem & 0x0f) { 3045 case 3: 3046 mem = (mem & ~(0x0f)) | 2; 3047 break; 3048 case 7: 3049 mem = (mem & ~(0x0f)) | 3; 3050 break; 3051 case 9: 3052 mem = (mem & ~(0x0f)) | 4; 3053 break; 3054 case 11: 3055 mem = (mem & ~(0x0f)) | 5; 3056 break; 3057 default: 3058 break; 3059 } 3060 if ((aty_ld_le32(CNFG_STAT0, par) & 7) >= SDRAM) 3061 mem &= ~(0x00700000); 3062 } 3063 mem &= ~(0xcf80e000); /* Turn off all undocumented bits. */ 3064 aty_st_le32(MEM_CNTL, mem, par); 3065 } 3066 3067 dp = pci_device_to_OF_node(pdev); 3068 if (dp == of_console_device) { 3069 struct fb_var_screeninfo *var = &default_var; 3070 unsigned int N, P, Q, M, T, R; 3071 struct crtc crtc; 3072 u8 pll_regs[16]; 3073 u8 clock_cntl; 3074 3075 crtc.vxres = of_getintprop_default(dp, "width", 1024); 3076 crtc.vyres = of_getintprop_default(dp, "height", 768); 3077 var->bits_per_pixel = of_getintprop_default(dp, "depth", 8); 3078 var->xoffset = var->yoffset = 0; 3079 crtc.h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par); 3080 crtc.h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par); 3081 crtc.v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par); 3082 crtc.v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par); 3083 crtc.gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par); 3084 aty_crtc_to_var(&crtc, var); 3085 3086 /* 3087 * Read the PLL to figure actual Refresh Rate. 3088 */ 3089 clock_cntl = aty_ld_8(CLOCK_CNTL, par); 3090 /* DPRINTK("CLOCK_CNTL %02x\n", clock_cntl); */ 3091 for (i = 0; i < 16; i++) 3092 pll_regs[i] = aty_ld_pll_ct(i, par); 3093 3094 /* 3095 * PLL Reference Divider M: 3096 */ 3097 M = pll_regs[PLL_REF_DIV]; 3098 3099 /* 3100 * PLL Feedback Divider N (Dependent on CLOCK_CNTL): 3101 */ 3102 N = pll_regs[VCLK0_FB_DIV + (clock_cntl & 3)]; 3103 3104 /* 3105 * PLL Post Divider P (Dependent on CLOCK_CNTL): 3106 */ 3107 P = aty_postdividers[((pll_regs[VCLK_POST_DIV] >> ((clock_cntl & 3) << 1)) & 3) | 3108 ((pll_regs[PLL_EXT_CNTL] >> (2 + (clock_cntl & 3))) & 4)]; 3109 3110 /* 3111 * PLL Divider Q: 3112 */ 3113 Q = N / P; 3114 3115 /* 3116 * Target Frequency: 3117 * 3118 * T * M 3119 * Q = ------- 3120 * 2 * R 3121 * 3122 * where R is XTALIN (= 14318 or 29498 kHz). 3123 */ 3124 if (IS_XL(pdev->device)) 3125 R = 29498; 3126 else 3127 R = 14318; 3128 3129 T = 2 * Q * R / M; 3130 3131 default_var.pixclock = 1000000000 / T; 3132 } 3133 3134 return 0; 3135 } 3136 3137 #else /* __sparc__ */ 3138 3139 #ifdef __i386__ 3140 #ifdef CONFIG_FB_ATY_GENERIC_LCD 3141 static void aty_init_lcd(struct atyfb_par *par, u32 bios_base) 3142 { 3143 u32 driv_inf_tab, sig; 3144 u16 lcd_ofs; 3145 3146 /* 3147 * To support an LCD panel, we should know it's dimensions and 3148 * it's desired pixel clock. 3149 * There are two ways to do it: 3150 * - Check the startup video mode and calculate the panel 3151 * size from it. This is unreliable. 3152 * - Read it from the driver information table in the video BIOS. 3153 */ 3154 /* Address of driver information table is at offset 0x78. */ 3155 driv_inf_tab = bios_base + *((u16 *)(bios_base+0x78)); 3156 3157 /* Check for the driver information table signature. */ 3158 sig = *(u32 *)driv_inf_tab; 3159 if ((sig == 0x54504c24) || /* Rage LT pro */ 3160 (sig == 0x544d5224) || /* Rage mobility */ 3161 (sig == 0x54435824) || /* Rage XC */ 3162 (sig == 0x544c5824)) { /* Rage XL */ 3163 PRINTKI("BIOS contains driver information table.\n"); 3164 lcd_ofs = *(u16 *)(driv_inf_tab + 10); 3165 par->lcd_table = 0; 3166 if (lcd_ofs != 0) 3167 par->lcd_table = bios_base + lcd_ofs; 3168 } 3169 3170 if (par->lcd_table != 0) { 3171 char model[24]; 3172 char strbuf[16]; 3173 char refresh_rates_buf[100]; 3174 int id, tech, f, i, m, default_refresh_rate; 3175 char *txtcolour; 3176 char *txtmonitor; 3177 char *txtdual; 3178 char *txtformat; 3179 u16 width, height, panel_type, refresh_rates; 3180 u16 *lcdmodeptr; 3181 u32 format; 3182 u8 lcd_refresh_rates[16] = { 50, 56, 60, 67, 70, 72, 75, 76, 85, 3183 90, 100, 120, 140, 150, 160, 200 }; 3184 /* 3185 * The most important information is the panel size at 3186 * offset 25 and 27, but there's some other nice information 3187 * which we print to the screen. 3188 */ 3189 id = *(u8 *)par->lcd_table; 3190 strscpy(model, (char *)par->lcd_table+1, sizeof(model)); 3191 3192 width = par->lcd_width = *(u16 *)(par->lcd_table+25); 3193 height = par->lcd_height = *(u16 *)(par->lcd_table+27); 3194 panel_type = *(u16 *)(par->lcd_table+29); 3195 if (panel_type & 1) 3196 txtcolour = "colour"; 3197 else 3198 txtcolour = "monochrome"; 3199 if (panel_type & 2) 3200 txtdual = "dual (split) "; 3201 else 3202 txtdual = ""; 3203 tech = (panel_type >> 2) & 63; 3204 switch (tech) { 3205 case 0: 3206 txtmonitor = "passive matrix"; 3207 break; 3208 case 1: 3209 txtmonitor = "active matrix"; 3210 break; 3211 case 2: 3212 txtmonitor = "active addressed STN"; 3213 break; 3214 case 3: 3215 txtmonitor = "EL"; 3216 break; 3217 case 4: 3218 txtmonitor = "plasma"; 3219 break; 3220 default: 3221 txtmonitor = "unknown"; 3222 } 3223 format = *(u32 *)(par->lcd_table+57); 3224 if (tech == 0 || tech == 2) { 3225 switch (format & 7) { 3226 case 0: 3227 txtformat = "12 bit interface"; 3228 break; 3229 case 1: 3230 txtformat = "16 bit interface"; 3231 break; 3232 case 2: 3233 txtformat = "24 bit interface"; 3234 break; 3235 default: 3236 txtformat = "unknown format"; 3237 } 3238 } else { 3239 switch (format & 7) { 3240 case 0: 3241 txtformat = "8 colours"; 3242 break; 3243 case 1: 3244 txtformat = "512 colours"; 3245 break; 3246 case 2: 3247 txtformat = "4096 colours"; 3248 break; 3249 case 4: 3250 txtformat = "262144 colours (LT mode)"; 3251 break; 3252 case 5: 3253 txtformat = "16777216 colours"; 3254 break; 3255 case 6: 3256 txtformat = "262144 colours (FDPI-2 mode)"; 3257 break; 3258 default: 3259 txtformat = "unknown format"; 3260 } 3261 } 3262 PRINTKI("%s%s %s monitor detected: %s\n", 3263 txtdual, txtcolour, txtmonitor, model); 3264 PRINTKI(" id=%d, %dx%d pixels, %s\n", 3265 id, width, height, txtformat); 3266 refresh_rates_buf[0] = 0; 3267 refresh_rates = *(u16 *)(par->lcd_table+62); 3268 m = 1; 3269 f = 0; 3270 for (i = 0; i < 16; i++) { 3271 if (refresh_rates & m) { 3272 if (f == 0) { 3273 sprintf(strbuf, "%d", 3274 lcd_refresh_rates[i]); 3275 f++; 3276 } else { 3277 sprintf(strbuf, ",%d", 3278 lcd_refresh_rates[i]); 3279 } 3280 strcat(refresh_rates_buf, strbuf); 3281 } 3282 m = m << 1; 3283 } 3284 default_refresh_rate = (*(u8 *)(par->lcd_table+61) & 0xf0) >> 4; 3285 PRINTKI(" supports refresh rates [%s], default %d Hz\n", 3286 refresh_rates_buf, lcd_refresh_rates[default_refresh_rate]); 3287 par->lcd_refreshrate = lcd_refresh_rates[default_refresh_rate]; 3288 /* 3289 * We now need to determine the crtc parameters for the 3290 * LCD monitor. This is tricky, because they are not stored 3291 * individually in the BIOS. Instead, the BIOS contains a 3292 * table of display modes that work for this monitor. 3293 * 3294 * The idea is that we search for a mode of the same dimensions 3295 * as the dimensions of the LCD monitor. Say our LCD monitor 3296 * is 800x600 pixels, we search for a 800x600 monitor. 3297 * The CRTC parameters we find here are the ones that we need 3298 * to use to simulate other resolutions on the LCD screen. 3299 */ 3300 lcdmodeptr = (u16 *)(par->lcd_table + 64); 3301 while (*lcdmodeptr != 0) { 3302 u32 modeptr; 3303 u16 mwidth, mheight, lcd_hsync_start, lcd_vsync_start; 3304 modeptr = bios_base + *lcdmodeptr; 3305 3306 mwidth = *((u16 *)(modeptr+0)); 3307 mheight = *((u16 *)(modeptr+2)); 3308 3309 if (mwidth == width && mheight == height) { 3310 par->lcd_pixclock = 100000000 / *((u16 *)(modeptr+9)); 3311 par->lcd_htotal = *((u16 *)(modeptr+17)) & 511; 3312 par->lcd_hdisp = *((u16 *)(modeptr+19)) & 511; 3313 lcd_hsync_start = *((u16 *)(modeptr+21)) & 511; 3314 par->lcd_hsync_dly = (*((u16 *)(modeptr+21)) >> 9) & 7; 3315 par->lcd_hsync_len = *((u8 *)(modeptr+23)) & 63; 3316 3317 par->lcd_vtotal = *((u16 *)(modeptr+24)) & 2047; 3318 par->lcd_vdisp = *((u16 *)(modeptr+26)) & 2047; 3319 lcd_vsync_start = *((u16 *)(modeptr+28)) & 2047; 3320 par->lcd_vsync_len = (*((u16 *)(modeptr+28)) >> 11) & 31; 3321 3322 par->lcd_htotal = (par->lcd_htotal + 1) * 8; 3323 par->lcd_hdisp = (par->lcd_hdisp + 1) * 8; 3324 lcd_hsync_start = (lcd_hsync_start + 1) * 8; 3325 par->lcd_hsync_len = par->lcd_hsync_len * 8; 3326 3327 par->lcd_vtotal++; 3328 par->lcd_vdisp++; 3329 lcd_vsync_start++; 3330 3331 par->lcd_right_margin = lcd_hsync_start - par->lcd_hdisp; 3332 par->lcd_lower_margin = lcd_vsync_start - par->lcd_vdisp; 3333 par->lcd_hblank_len = par->lcd_htotal - par->lcd_hdisp; 3334 par->lcd_vblank_len = par->lcd_vtotal - par->lcd_vdisp; 3335 break; 3336 } 3337 3338 lcdmodeptr++; 3339 } 3340 if (*lcdmodeptr == 0) { 3341 PRINTKE("LCD monitor CRTC parameters not found!!!\n"); 3342 /* To do: Switch to CRT if possible. */ 3343 } else { 3344 PRINTKI(" LCD CRTC parameters: %d.%d %d %d %d %d %d %d %d %d\n", 3345 1000000 / par->lcd_pixclock, 1000000 % par->lcd_pixclock, 3346 par->lcd_hdisp, 3347 par->lcd_hdisp + par->lcd_right_margin, 3348 par->lcd_hdisp + par->lcd_right_margin 3349 + par->lcd_hsync_dly + par->lcd_hsync_len, 3350 par->lcd_htotal, 3351 par->lcd_vdisp, 3352 par->lcd_vdisp + par->lcd_lower_margin, 3353 par->lcd_vdisp + par->lcd_lower_margin + par->lcd_vsync_len, 3354 par->lcd_vtotal); 3355 PRINTKI(" : %d %d %d %d %d %d %d %d %d\n", 3356 par->lcd_pixclock, 3357 par->lcd_hblank_len - (par->lcd_right_margin + 3358 par->lcd_hsync_dly + par->lcd_hsync_len), 3359 par->lcd_hdisp, 3360 par->lcd_right_margin, 3361 par->lcd_hsync_len, 3362 par->lcd_vblank_len - (par->lcd_lower_margin + par->lcd_vsync_len), 3363 par->lcd_vdisp, 3364 par->lcd_lower_margin, 3365 par->lcd_vsync_len); 3366 } 3367 } 3368 } 3369 #endif /* CONFIG_FB_ATY_GENERIC_LCD */ 3370 3371 static int init_from_bios(struct atyfb_par *par) 3372 { 3373 u32 bios_base, rom_addr; 3374 int ret; 3375 3376 rom_addr = 0xc0000 + ((aty_ld_le32(SCRATCH_REG1, par) & 0x7f) << 11); 3377 bios_base = (unsigned long)ioremap(rom_addr, 0x10000); 3378 3379 /* The BIOS starts with 0xaa55. */ 3380 if (*((u16 *)bios_base) == 0xaa55) { 3381 3382 u8 *bios_ptr; 3383 u16 rom_table_offset, freq_table_offset; 3384 PLL_BLOCK_MACH64 pll_block; 3385 3386 PRINTKI("Mach64 BIOS is located at %x, mapped at %x.\n", rom_addr, bios_base); 3387 3388 /* check for frequncy table */ 3389 bios_ptr = (u8*)bios_base; 3390 rom_table_offset = (u16)(bios_ptr[0x48] | (bios_ptr[0x49] << 8)); 3391 freq_table_offset = bios_ptr[rom_table_offset + 16] | (bios_ptr[rom_table_offset + 17] << 8); 3392 memcpy(&pll_block, bios_ptr + freq_table_offset, sizeof(PLL_BLOCK_MACH64)); 3393 3394 PRINTKI("BIOS frequency table:\n"); 3395 PRINTKI("PCLK_min_freq %d, PCLK_max_freq %d, ref_freq %d, ref_divider %d\n", 3396 pll_block.PCLK_min_freq, pll_block.PCLK_max_freq, 3397 pll_block.ref_freq, pll_block.ref_divider); 3398 PRINTKI("MCLK_pwd %d, MCLK_max_freq %d, XCLK_max_freq %d, SCLK_freq %d\n", 3399 pll_block.MCLK_pwd, pll_block.MCLK_max_freq, 3400 pll_block.XCLK_max_freq, pll_block.SCLK_freq); 3401 3402 par->pll_limits.pll_min = pll_block.PCLK_min_freq/100; 3403 par->pll_limits.pll_max = pll_block.PCLK_max_freq/100; 3404 par->pll_limits.ref_clk = pll_block.ref_freq/100; 3405 par->pll_limits.ref_div = pll_block.ref_divider; 3406 par->pll_limits.sclk = pll_block.SCLK_freq/100; 3407 par->pll_limits.mclk = pll_block.MCLK_max_freq/100; 3408 par->pll_limits.mclk_pm = pll_block.MCLK_pwd/100; 3409 par->pll_limits.xclk = pll_block.XCLK_max_freq/100; 3410 #ifdef CONFIG_FB_ATY_GENERIC_LCD 3411 aty_init_lcd(par, bios_base); 3412 #endif 3413 ret = 0; 3414 } else { 3415 PRINTKE("no BIOS frequency table found, use parameters\n"); 3416 ret = -ENXIO; 3417 } 3418 iounmap((void __iomem *)bios_base); 3419 3420 return ret; 3421 } 3422 #endif /* __i386__ */ 3423 3424 static int atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *info, 3425 unsigned long addr) 3426 { 3427 struct atyfb_par *par = info->par; 3428 u16 tmp; 3429 unsigned long raddr; 3430 struct resource *rrp; 3431 int ret = 0; 3432 3433 raddr = addr + 0x7ff000UL; 3434 rrp = &pdev->resource[2]; 3435 if ((rrp->flags & IORESOURCE_MEM) && 3436 request_mem_region(rrp->start, resource_size(rrp), "atyfb")) { 3437 par->aux_start = rrp->start; 3438 par->aux_size = resource_size(rrp); 3439 raddr = rrp->start; 3440 PRINTKI("using auxiliary register aperture\n"); 3441 } 3442 3443 info->fix.mmio_start = raddr; 3444 /* 3445 * By using strong UC we force the MTRR to never have an 3446 * effect on the MMIO region on both non-PAT and PAT systems. 3447 */ 3448 par->ati_regbase = ioremap_uc(info->fix.mmio_start, 0x1000); 3449 if (par->ati_regbase == NULL) 3450 return -ENOMEM; 3451 3452 info->fix.mmio_start += par->aux_start ? 0x400 : 0xc00; 3453 par->ati_regbase += par->aux_start ? 0x400 : 0xc00; 3454 3455 /* 3456 * Enable memory-space accesses using config-space 3457 * command register. 3458 */ 3459 pci_read_config_word(pdev, PCI_COMMAND, &tmp); 3460 if (!(tmp & PCI_COMMAND_MEMORY)) { 3461 tmp |= PCI_COMMAND_MEMORY; 3462 pci_write_config_word(pdev, PCI_COMMAND, tmp); 3463 } 3464 #ifdef __BIG_ENDIAN 3465 /* Use the big-endian aperture */ 3466 addr += 0x800000; 3467 #endif 3468 3469 /* Map in frame buffer */ 3470 info->fix.smem_start = addr; 3471 3472 /* 3473 * The framebuffer is not always 8 MiB, that's just the size of the 3474 * PCI BAR. We temporarily abuse smem_len here to store the size 3475 * of the BAR. aty_init() will later correct it to match the actual 3476 * framebuffer size. 3477 * 3478 * On devices that don't have the auxiliary register aperture, the 3479 * registers are housed at the top end of the framebuffer PCI BAR. 3480 * aty_fudge_framebuffer_len() is used to reduce smem_len to not 3481 * overlap with the registers. 3482 */ 3483 info->fix.smem_len = 0x800000; 3484 3485 aty_fudge_framebuffer_len(info); 3486 3487 info->screen_base = ioremap_wc(info->fix.smem_start, 3488 info->fix.smem_len); 3489 if (info->screen_base == NULL) { 3490 ret = -ENOMEM; 3491 goto atyfb_setup_generic_fail; 3492 } 3493 3494 ret = correct_chipset(par); 3495 if (ret) 3496 goto atyfb_setup_generic_fail; 3497 #ifdef __i386__ 3498 ret = init_from_bios(par); 3499 if (ret) 3500 goto atyfb_setup_generic_fail; 3501 #endif 3502 /* according to ATI, we should use clock 3 for acelerated mode */ 3503 par->clk_wr_offset = 3; 3504 3505 return 0; 3506 3507 atyfb_setup_generic_fail: 3508 iounmap(par->ati_regbase); 3509 par->ati_regbase = NULL; 3510 if (info->screen_base) { 3511 iounmap(info->screen_base); 3512 info->screen_base = NULL; 3513 } 3514 return ret; 3515 } 3516 3517 #endif /* !__sparc__ */ 3518 3519 static int atyfb_pci_probe(struct pci_dev *pdev, 3520 const struct pci_device_id *ent) 3521 { 3522 unsigned long addr, res_start, res_size; 3523 struct fb_info *info; 3524 struct resource *rp; 3525 struct atyfb_par *par; 3526 int rc; 3527 3528 rc = aperture_remove_conflicting_pci_devices(pdev, "atyfb"); 3529 if (rc) 3530 return rc; 3531 3532 /* Enable device in PCI config */ 3533 if (pci_enable_device(pdev)) { 3534 PRINTKE("Cannot enable PCI device\n"); 3535 return -ENXIO; 3536 } 3537 3538 /* Find which resource to use */ 3539 rp = &pdev->resource[0]; 3540 if (rp->flags & IORESOURCE_IO) 3541 rp = &pdev->resource[1]; 3542 addr = rp->start; 3543 if (!addr) 3544 return -ENXIO; 3545 3546 /* Reserve space */ 3547 res_start = rp->start; 3548 res_size = resource_size(rp); 3549 if (!request_mem_region(res_start, res_size, "atyfb")) 3550 return -EBUSY; 3551 3552 /* Allocate framebuffer */ 3553 info = framebuffer_alloc(sizeof(struct atyfb_par), &pdev->dev); 3554 if (!info) 3555 return -ENOMEM; 3556 3557 par = info->par; 3558 par->bus_type = PCI; 3559 info->fix = atyfb_fix; 3560 info->device = &pdev->dev; 3561 par->pci_id = pdev->device; 3562 par->res_start = res_start; 3563 par->res_size = res_size; 3564 par->irq = pdev->irq; 3565 par->pdev = pdev; 3566 3567 /* Setup "info" structure */ 3568 #ifdef __sparc__ 3569 rc = atyfb_setup_sparc(pdev, info, addr); 3570 #else 3571 rc = atyfb_setup_generic(pdev, info, addr); 3572 #endif 3573 if (rc) 3574 goto err_release_mem; 3575 3576 pci_set_drvdata(pdev, info); 3577 3578 /* Init chip & register framebuffer */ 3579 rc = aty_init(info); 3580 if (rc) 3581 goto err_release_io; 3582 3583 #ifdef __sparc__ 3584 /* 3585 * Add /dev/fb mmap values. 3586 */ 3587 par->mmap_map[0].voff = 0x8000000000000000UL; 3588 par->mmap_map[0].poff = (unsigned long) info->screen_base & PAGE_MASK; 3589 par->mmap_map[0].size = info->fix.smem_len; 3590 par->mmap_map[0].prot_mask = _PAGE_CACHE; 3591 par->mmap_map[0].prot_flag = _PAGE_E; 3592 par->mmap_map[1].voff = par->mmap_map[0].voff + info->fix.smem_len; 3593 par->mmap_map[1].poff = (long)par->ati_regbase & PAGE_MASK; 3594 par->mmap_map[1].size = PAGE_SIZE; 3595 par->mmap_map[1].prot_mask = _PAGE_CACHE; 3596 par->mmap_map[1].prot_flag = _PAGE_E; 3597 #endif /* __sparc__ */ 3598 3599 mutex_lock(&reboot_lock); 3600 if (!reboot_info) 3601 reboot_info = info; 3602 mutex_unlock(&reboot_lock); 3603 3604 return 0; 3605 3606 err_release_io: 3607 #ifdef __sparc__ 3608 kfree(par->mmap_map); 3609 #else 3610 if (par->ati_regbase) 3611 iounmap(par->ati_regbase); 3612 if (info->screen_base) 3613 iounmap(info->screen_base); 3614 #endif 3615 err_release_mem: 3616 if (par->aux_start) 3617 release_mem_region(par->aux_start, par->aux_size); 3618 3619 release_mem_region(par->res_start, par->res_size); 3620 framebuffer_release(info); 3621 3622 return rc; 3623 } 3624 3625 #endif /* CONFIG_PCI */ 3626 3627 #ifdef CONFIG_ATARI 3628 3629 static int __init atyfb_atari_probe(void) 3630 { 3631 struct atyfb_par *par; 3632 struct fb_info *info; 3633 int m64_num; 3634 u32 clock_r; 3635 int num_found = 0; 3636 3637 for (m64_num = 0; m64_num < mach64_count; m64_num++) { 3638 if (!phys_vmembase[m64_num] || !phys_size[m64_num] || 3639 !phys_guiregbase[m64_num]) { 3640 PRINTKI("phys_*[%d] parameters not set => " 3641 "returning early. \n", m64_num); 3642 continue; 3643 } 3644 3645 info = framebuffer_alloc(sizeof(struct atyfb_par), NULL); 3646 if (!info) 3647 return -ENOMEM; 3648 3649 par = info->par; 3650 3651 info->fix = atyfb_fix; 3652 3653 par->irq = (unsigned int) -1; /* something invalid */ 3654 3655 /* 3656 * Map the video memory (physical address given) 3657 * to somewhere in the kernel address space. 3658 */ 3659 info->screen_base = ioremap_wc(phys_vmembase[m64_num], 3660 phys_size[m64_num]); 3661 info->fix.smem_start = (unsigned long)info->screen_base; /* Fake! */ 3662 par->ati_regbase = ioremap(phys_guiregbase[m64_num], 0x10000) + 3663 0xFC00ul; 3664 info->fix.mmio_start = (unsigned long)par->ati_regbase; /* Fake! */ 3665 3666 aty_st_le32(CLOCK_CNTL, 0x12345678, par); 3667 clock_r = aty_ld_le32(CLOCK_CNTL, par); 3668 3669 switch (clock_r & 0x003F) { 3670 case 0x12: 3671 par->clk_wr_offset = 3; /* */ 3672 break; 3673 case 0x34: 3674 par->clk_wr_offset = 2; /* Medusa ST-IO ISA Adapter etc. */ 3675 break; 3676 case 0x16: 3677 par->clk_wr_offset = 1; /* */ 3678 break; 3679 case 0x38: 3680 par->clk_wr_offset = 0; /* Panther 1 ISA Adapter (Gerald) */ 3681 break; 3682 } 3683 3684 /* Fake pci_id for correct_chipset() */ 3685 switch (aty_ld_le32(CNFG_CHIP_ID, par) & CFG_CHIP_TYPE) { 3686 case 0x00d7: 3687 par->pci_id = PCI_CHIP_MACH64GX; 3688 break; 3689 case 0x0057: 3690 par->pci_id = PCI_CHIP_MACH64CX; 3691 break; 3692 default: 3693 break; 3694 } 3695 3696 if (correct_chipset(par) || aty_init(info)) { 3697 iounmap(info->screen_base); 3698 iounmap(par->ati_regbase); 3699 framebuffer_release(info); 3700 } else { 3701 num_found++; 3702 } 3703 } 3704 3705 return num_found ? 0 : -ENXIO; 3706 } 3707 3708 #endif /* CONFIG_ATARI */ 3709 3710 #ifdef CONFIG_PCI 3711 3712 static void atyfb_remove(struct fb_info *info) 3713 { 3714 struct atyfb_par *par = (struct atyfb_par *) info->par; 3715 3716 /* restore video mode */ 3717 aty_set_crtc(par, &par->saved_crtc); 3718 par->pll_ops->set_pll(info, &par->saved_pll); 3719 3720 #ifdef CONFIG_FB_ATY_BACKLIGHT 3721 if (M64_HAS(MOBIL_BUS)) 3722 aty_bl_exit(info->bl_dev); 3723 #endif 3724 3725 unregister_framebuffer(info); 3726 3727 arch_phys_wc_del(par->wc_cookie); 3728 3729 #ifndef __sparc__ 3730 if (par->ati_regbase) 3731 iounmap(par->ati_regbase); 3732 if (info->screen_base) 3733 iounmap(info->screen_base); 3734 #ifdef __BIG_ENDIAN 3735 if (info->sprite.addr) 3736 iounmap(info->sprite.addr); 3737 #endif 3738 #endif 3739 #ifdef __sparc__ 3740 kfree(par->mmap_map); 3741 #endif 3742 if (par->aux_start) 3743 release_mem_region(par->aux_start, par->aux_size); 3744 3745 if (par->res_start) 3746 release_mem_region(par->res_start, par->res_size); 3747 3748 framebuffer_release(info); 3749 } 3750 3751 3752 static void atyfb_pci_remove(struct pci_dev *pdev) 3753 { 3754 struct fb_info *info = pci_get_drvdata(pdev); 3755 3756 mutex_lock(&reboot_lock); 3757 if (reboot_info == info) 3758 reboot_info = NULL; 3759 mutex_unlock(&reboot_lock); 3760 3761 atyfb_remove(info); 3762 } 3763 3764 static const struct pci_device_id atyfb_pci_tbl[] = { 3765 #ifdef CONFIG_FB_ATY_GX 3766 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GX) }, 3767 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CX) }, 3768 #endif /* CONFIG_FB_ATY_GX */ 3769 3770 #ifdef CONFIG_FB_ATY_CT 3771 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CT) }, 3772 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64ET) }, 3773 3774 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LT) }, 3775 3776 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VT) }, 3777 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GT) }, 3778 3779 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VU) }, 3780 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GU) }, 3781 3782 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LG) }, 3783 3784 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VV) }, 3785 3786 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GV) }, 3787 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GW) }, 3788 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GY) }, 3789 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GZ) }, 3790 3791 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GB) }, 3792 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GD) }, 3793 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GI) }, 3794 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GP) }, 3795 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GQ) }, 3796 3797 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LB) }, 3798 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LD) }, 3799 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LI) }, 3800 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LP) }, 3801 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LQ) }, 3802 3803 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GM) }, 3804 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GN) }, 3805 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GO) }, 3806 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GL) }, 3807 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GR) }, 3808 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GS) }, 3809 3810 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LM) }, 3811 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LN) }, 3812 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LR) }, 3813 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LS) }, 3814 #endif /* CONFIG_FB_ATY_CT */ 3815 { } 3816 }; 3817 3818 MODULE_DEVICE_TABLE(pci, atyfb_pci_tbl); 3819 3820 static struct pci_driver atyfb_driver = { 3821 .name = "atyfb", 3822 .id_table = atyfb_pci_tbl, 3823 .probe = atyfb_pci_probe, 3824 .remove = atyfb_pci_remove, 3825 .driver.pm = &atyfb_pci_pm_ops, 3826 }; 3827 3828 #endif /* CONFIG_PCI */ 3829 3830 #ifndef MODULE 3831 static int __init atyfb_setup(char *options) 3832 { 3833 char *this_opt; 3834 3835 if (!options || !*options) 3836 return 0; 3837 3838 while ((this_opt = strsep(&options, ",")) != NULL) { 3839 if (!strncmp(this_opt, "noaccel", 7)) { 3840 noaccel = true; 3841 } else if (!strncmp(this_opt, "nomtrr", 6)) { 3842 nomtrr = true; 3843 } else if (!strncmp(this_opt, "vram:", 5)) 3844 vram = simple_strtoul(this_opt + 5, NULL, 0); 3845 else if (!strncmp(this_opt, "pll:", 4)) 3846 pll = simple_strtoul(this_opt + 4, NULL, 0); 3847 else if (!strncmp(this_opt, "mclk:", 5)) 3848 mclk = simple_strtoul(this_opt + 5, NULL, 0); 3849 else if (!strncmp(this_opt, "xclk:", 5)) 3850 xclk = simple_strtoul(this_opt+5, NULL, 0); 3851 else if (!strncmp(this_opt, "comp_sync:", 10)) 3852 comp_sync = simple_strtoul(this_opt+10, NULL, 0); 3853 else if (!strncmp(this_opt, "backlight:", 10)) 3854 backlight = simple_strtoul(this_opt+10, NULL, 0); 3855 #ifdef CONFIG_PPC 3856 else if (!strncmp(this_opt, "vmode:", 6)) { 3857 unsigned int vmode = 3858 simple_strtoul(this_opt + 6, NULL, 0); 3859 if (vmode > 0 && vmode <= VMODE_MAX) 3860 default_vmode = vmode; 3861 } else if (!strncmp(this_opt, "cmode:", 6)) { 3862 unsigned int cmode = 3863 simple_strtoul(this_opt + 6, NULL, 0); 3864 switch (cmode) { 3865 case 0: 3866 case 8: 3867 default_cmode = CMODE_8; 3868 break; 3869 case 15: 3870 case 16: 3871 default_cmode = CMODE_16; 3872 break; 3873 case 24: 3874 case 32: 3875 default_cmode = CMODE_32; 3876 break; 3877 } 3878 } 3879 #endif 3880 #ifdef CONFIG_ATARI 3881 /* 3882 * Why do we need this silly Mach64 argument? 3883 * We are already here because of mach64= so its redundant. 3884 */ 3885 else if (MACH_IS_ATARI 3886 && (!strncmp(this_opt, "Mach64:", 7))) { 3887 static unsigned char m64_num; 3888 static char mach64_str[80]; 3889 strscpy(mach64_str, this_opt + 7, sizeof(mach64_str)); 3890 if (!store_video_par(mach64_str, m64_num)) { 3891 m64_num++; 3892 mach64_count = m64_num; 3893 } 3894 } 3895 #endif 3896 else 3897 mode = this_opt; 3898 } 3899 return 0; 3900 } 3901 #endif /* MODULE */ 3902 3903 static int atyfb_reboot_notify(struct notifier_block *nb, 3904 unsigned long code, void *unused) 3905 { 3906 struct atyfb_par *par; 3907 3908 if (code != SYS_RESTART) 3909 return NOTIFY_DONE; 3910 3911 mutex_lock(&reboot_lock); 3912 3913 if (!reboot_info) 3914 goto out; 3915 3916 lock_fb_info(reboot_info); 3917 3918 par = reboot_info->par; 3919 3920 /* 3921 * HP OmniBook 500's BIOS doesn't like the state of the 3922 * hardware after atyfb has been used. Restore the hardware 3923 * to the original state to allow successful reboots. 3924 */ 3925 aty_set_crtc(par, &par->saved_crtc); 3926 par->pll_ops->set_pll(reboot_info, &par->saved_pll); 3927 3928 unlock_fb_info(reboot_info); 3929 out: 3930 mutex_unlock(&reboot_lock); 3931 3932 return NOTIFY_DONE; 3933 } 3934 3935 static struct notifier_block atyfb_reboot_notifier = { 3936 .notifier_call = atyfb_reboot_notify, 3937 }; 3938 3939 static const struct dmi_system_id atyfb_reboot_ids[] __initconst = { 3940 { 3941 .ident = "HP OmniBook 500", 3942 .matches = { 3943 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 3944 DMI_MATCH(DMI_PRODUCT_NAME, "HP OmniBook PC"), 3945 DMI_MATCH(DMI_PRODUCT_VERSION, "HP OmniBook 500 FA"), 3946 }, 3947 }, 3948 3949 { } 3950 }; 3951 static bool registered_notifier = false; 3952 3953 static int __init atyfb_init(void) 3954 { 3955 int err1 = 1, err2 = 1; 3956 #ifndef MODULE 3957 char *option = NULL; 3958 #endif 3959 3960 if (fb_modesetting_disabled("atyfb")) 3961 return -ENODEV; 3962 3963 #ifndef MODULE 3964 if (fb_get_options("atyfb", &option)) 3965 return -ENODEV; 3966 atyfb_setup(option); 3967 #endif 3968 3969 #ifdef CONFIG_PCI 3970 err1 = pci_register_driver(&atyfb_driver); 3971 #endif 3972 #ifdef CONFIG_ATARI 3973 err2 = atyfb_atari_probe(); 3974 #endif 3975 3976 if (err1 && err2) 3977 return -ENODEV; 3978 3979 if (dmi_check_system(atyfb_reboot_ids)) { 3980 register_reboot_notifier(&atyfb_reboot_notifier); 3981 registered_notifier = true; 3982 } 3983 3984 return 0; 3985 } 3986 3987 static void __exit atyfb_exit(void) 3988 { 3989 if (registered_notifier) 3990 unregister_reboot_notifier(&atyfb_reboot_notifier); 3991 3992 #ifdef CONFIG_PCI 3993 pci_unregister_driver(&atyfb_driver); 3994 #endif 3995 } 3996 3997 module_init(atyfb_init); 3998 module_exit(atyfb_exit); 3999 4000 MODULE_DESCRIPTION("FBDev driver for ATI Mach64 cards"); 4001 MODULE_LICENSE("GPL"); 4002 module_param(noaccel, bool, 0); 4003 MODULE_PARM_DESC(noaccel, "bool: disable acceleration"); 4004 module_param(vram, int, 0); 4005 MODULE_PARM_DESC(vram, "int: override size of video ram"); 4006 module_param(pll, int, 0); 4007 MODULE_PARM_DESC(pll, "int: override video clock"); 4008 module_param(mclk, int, 0); 4009 MODULE_PARM_DESC(mclk, "int: override memory clock"); 4010 module_param(xclk, int, 0); 4011 MODULE_PARM_DESC(xclk, "int: override accelerated engine clock"); 4012 module_param(comp_sync, int, 0); 4013 MODULE_PARM_DESC(comp_sync, "Set composite sync signal to low (0) or high (1)"); 4014 module_param(mode, charp, 0); 4015 MODULE_PARM_DESC(mode, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); 4016 module_param(nomtrr, bool, 0); 4017 MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers"); 4018