Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/video/stifb.c - |
| 3 | * Low level Frame buffer driver for HP workstations with |
| 4 | * STI (standard text interface) video firmware. |
| 5 | * |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 6 | * Copyright (C) 2001-2005 Helge Deller <deller@gmx.de> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * Portions Copyright (C) 2001 Thomas Bogendoerfer <tsbogend@alpha.franken.de> |
| 8 | * |
| 9 | * Based on: |
| 10 | * - linux/drivers/video/artistfb.c -- Artist frame buffer driver |
| 11 | * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> |
| 12 | * - based on skeletonfb, which was |
| 13 | * Created 28 Dec 1997 by Geert Uytterhoeven |
| 14 | * - HP Xhp cfb-based X11 window driver for XFree86 |
| 15 | * (c)Copyright 1992 Hewlett-Packard Co. |
| 16 | * |
| 17 | * |
| 18 | * The following graphics display devices (NGLE family) are supported by this driver: |
| 19 | * |
| 20 | * HPA4070A known as "HCRX", a 1280x1024 color device with 8 planes |
| 21 | * HPA4071A known as "HCRX24", a 1280x1024 color device with 24 planes, |
| 22 | * optionally available with a hardware accelerator as HPA4071A_Z |
| 23 | * HPA1659A known as "CRX", a 1280x1024 color device with 8 planes |
| 24 | * HPA1439A known as "CRX24", a 1280x1024 color device with 24 planes, |
| 25 | * optionally available with a hardware accelerator. |
| 26 | * HPA1924A known as "GRX", a 1280x1024 grayscale device with 8 planes |
| 27 | * HPA2269A known as "Dual CRX", a 1280x1024 color device with 8 planes, |
| 28 | * implements support for two displays on a single graphics card. |
| 29 | * HP710C internal graphics support optionally available on the HP9000s710 SPU, |
| 30 | * supports 1280x1024 color displays with 8 planes. |
| 31 | * HP710G same as HP710C, 1280x1024 grayscale only |
| 32 | * HP710L same as HP710C, 1024x768 color only |
| 33 | * HP712 internal graphics support on HP9000s712 SPU, supports 640x480, |
| 34 | * 1024x768 or 1280x1024 color displays on 8 planes (Artist) |
| 35 | * |
| 36 | * This file is subject to the terms and conditions of the GNU General Public |
| 37 | * License. See the file COPYING in the main directory of this archive |
| 38 | * for more details. |
| 39 | */ |
| 40 | |
| 41 | /* TODO: |
| 42 | * - 1bpp mode is completely untested |
| 43 | * - add support for h/w acceleration |
| 44 | * - add hardware cursor |
| 45 | * - automatically disable double buffering (e.g. on RDI precisionbook laptop) |
| 46 | */ |
| 47 | |
| 48 | |
| 49 | /* on supported graphic devices you may: |
| 50 | * #define FALLBACK_TO_1BPP to fall back to 1 bpp, or |
| 51 | * #undef FALLBACK_TO_1BPP to reject support for unsupported cards */ |
| 52 | #undef FALLBACK_TO_1BPP |
| 53 | |
| 54 | #undef DEBUG_STIFB_REGS /* debug sti register accesses */ |
| 55 | |
| 56 | |
| 57 | #include <linux/config.h> |
| 58 | #include <linux/module.h> |
| 59 | #include <linux/kernel.h> |
| 60 | #include <linux/errno.h> |
| 61 | #include <linux/string.h> |
| 62 | #include <linux/mm.h> |
| 63 | #include <linux/slab.h> |
| 64 | #include <linux/delay.h> |
| 65 | #include <linux/fb.h> |
| 66 | #include <linux/init.h> |
| 67 | #include <linux/ioport.h> |
| 68 | #include <linux/pci.h> |
| 69 | |
| 70 | #include <asm/grfioctl.h> /* for HP-UX compatibility */ |
| 71 | #include <asm/uaccess.h> |
| 72 | |
| 73 | #include "sticore.h" |
| 74 | |
| 75 | /* REGION_BASE(fb_info, index) returns the virtual address for region <index> */ |
Helge Deller | 5d6d164 | 2006-01-10 20:48:03 -0500 | [diff] [blame] | 76 | #define REGION_BASE(fb_info, index) \ |
| 77 | F_EXTEND(fb_info->sti->glob_cfg->region_ptrs[index]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | |
| 79 | #define NGLEDEVDEPROM_CRT_REGION 1 |
| 80 | |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 81 | #define NR_PALETTE 256 |
| 82 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | typedef struct { |
| 84 | __s32 video_config_reg; |
| 85 | __s32 misc_video_start; |
| 86 | __s32 horiz_timing_fmt; |
| 87 | __s32 serr_timing_fmt; |
| 88 | __s32 vert_timing_fmt; |
| 89 | __s32 horiz_state; |
| 90 | __s32 vert_state; |
| 91 | __s32 vtg_state_elements; |
| 92 | __s32 pipeline_delay; |
| 93 | __s32 misc_video_end; |
| 94 | } video_setup_t; |
| 95 | |
| 96 | typedef struct { |
| 97 | __s16 sizeof_ngle_data; |
| 98 | __s16 x_size_visible; /* visible screen dim in pixels */ |
| 99 | __s16 y_size_visible; |
| 100 | __s16 pad2[15]; |
| 101 | __s16 cursor_pipeline_delay; |
| 102 | __s16 video_interleaves; |
| 103 | __s32 pad3[11]; |
| 104 | } ngle_rom_t; |
| 105 | |
| 106 | struct stifb_info { |
| 107 | struct fb_info info; |
| 108 | unsigned int id; |
| 109 | ngle_rom_t ngle_rom; |
| 110 | struct sti_struct *sti; |
| 111 | int deviceSpecificConfig; |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 112 | u32 pseudo_palette[16]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | }; |
| 114 | |
| 115 | static int __initdata stifb_bpp_pref[MAX_STI_ROMS]; |
| 116 | |
| 117 | /* ------------------- chipset specific functions -------------------------- */ |
| 118 | |
| 119 | /* offsets to graphic-chip internal registers */ |
| 120 | |
| 121 | #define REG_1 0x000118 |
| 122 | #define REG_2 0x000480 |
| 123 | #define REG_3 0x0004a0 |
| 124 | #define REG_4 0x000600 |
| 125 | #define REG_6 0x000800 |
| 126 | #define REG_8 0x000820 |
| 127 | #define REG_9 0x000a04 |
| 128 | #define REG_10 0x018000 |
| 129 | #define REG_11 0x018004 |
| 130 | #define REG_12 0x01800c |
| 131 | #define REG_13 0x018018 |
| 132 | #define REG_14 0x01801c |
| 133 | #define REG_15 0x200000 |
| 134 | #define REG_15b0 0x200000 |
| 135 | #define REG_16b1 0x200005 |
| 136 | #define REG_16b3 0x200007 |
| 137 | #define REG_21 0x200218 |
| 138 | #define REG_22 0x0005a0 |
| 139 | #define REG_23 0x0005c0 |
| 140 | #define REG_26 0x200118 |
| 141 | #define REG_27 0x200308 |
| 142 | #define REG_32 0x21003c |
| 143 | #define REG_33 0x210040 |
| 144 | #define REG_34 0x200008 |
| 145 | #define REG_35 0x018010 |
| 146 | #define REG_38 0x210020 |
| 147 | #define REG_39 0x210120 |
| 148 | #define REG_40 0x210130 |
| 149 | #define REG_42 0x210028 |
| 150 | #define REG_43 0x21002c |
| 151 | #define REG_44 0x210030 |
| 152 | #define REG_45 0x210034 |
| 153 | |
| 154 | #define READ_BYTE(fb,reg) gsc_readb((fb)->info.fix.mmio_start + (reg)) |
| 155 | #define READ_WORD(fb,reg) gsc_readl((fb)->info.fix.mmio_start + (reg)) |
| 156 | |
| 157 | |
| 158 | #ifndef DEBUG_STIFB_REGS |
| 159 | # define DEBUG_OFF() |
| 160 | # define DEBUG_ON() |
| 161 | # define WRITE_BYTE(value,fb,reg) gsc_writeb((value),(fb)->info.fix.mmio_start + (reg)) |
| 162 | # define WRITE_WORD(value,fb,reg) gsc_writel((value),(fb)->info.fix.mmio_start + (reg)) |
| 163 | #else |
| 164 | static int debug_on = 1; |
| 165 | # define DEBUG_OFF() debug_on=0 |
| 166 | # define DEBUG_ON() debug_on=1 |
| 167 | # define WRITE_BYTE(value,fb,reg) do { if (debug_on) \ |
| 168 | printk(KERN_DEBUG "%30s: WRITE_BYTE(0x%06x) = 0x%02x (old=0x%02x)\n", \ |
| 169 | __FUNCTION__, reg, value, READ_BYTE(fb,reg)); \ |
| 170 | gsc_writeb((value),(fb)->info.fix.mmio_start + (reg)); } while (0) |
| 171 | # define WRITE_WORD(value,fb,reg) do { if (debug_on) \ |
| 172 | printk(KERN_DEBUG "%30s: WRITE_WORD(0x%06x) = 0x%08x (old=0x%08x)\n", \ |
| 173 | __FUNCTION__, reg, value, READ_WORD(fb,reg)); \ |
| 174 | gsc_writel((value),(fb)->info.fix.mmio_start + (reg)); } while (0) |
| 175 | #endif /* DEBUG_STIFB_REGS */ |
| 176 | |
| 177 | |
| 178 | #define ENABLE 1 /* for enabling/disabling screen */ |
| 179 | #define DISABLE 0 |
| 180 | |
| 181 | #define NGLE_LOCK(fb_info) do { } while (0) |
| 182 | #define NGLE_UNLOCK(fb_info) do { } while (0) |
| 183 | |
| 184 | static void |
| 185 | SETUP_HW(struct stifb_info *fb) |
| 186 | { |
| 187 | char stat; |
| 188 | |
| 189 | do { |
| 190 | stat = READ_BYTE(fb, REG_15b0); |
| 191 | if (!stat) |
| 192 | stat = READ_BYTE(fb, REG_15b0); |
| 193 | } while (stat); |
| 194 | } |
| 195 | |
| 196 | |
| 197 | static void |
| 198 | SETUP_FB(struct stifb_info *fb) |
| 199 | { |
| 200 | unsigned int reg10_value = 0; |
| 201 | |
| 202 | SETUP_HW(fb); |
| 203 | switch (fb->id) |
| 204 | { |
| 205 | case CRT_ID_VISUALIZE_EG: |
| 206 | case S9000_ID_ARTIST: |
| 207 | case S9000_ID_A1659A: |
| 208 | reg10_value = 0x13601000; |
| 209 | break; |
| 210 | case S9000_ID_A1439A: |
| 211 | if (fb->info.var.bits_per_pixel == 32) |
| 212 | reg10_value = 0xBBA0A000; |
| 213 | else |
| 214 | reg10_value = 0x13601000; |
| 215 | break; |
| 216 | case S9000_ID_HCRX: |
| 217 | if (fb->info.var.bits_per_pixel == 32) |
| 218 | reg10_value = 0xBBA0A000; |
| 219 | else |
| 220 | reg10_value = 0x13602000; |
| 221 | break; |
| 222 | case S9000_ID_TIMBER: |
| 223 | case CRX24_OVERLAY_PLANES: |
| 224 | reg10_value = 0x13602000; |
| 225 | break; |
| 226 | } |
| 227 | if (reg10_value) |
| 228 | WRITE_WORD(reg10_value, fb, REG_10); |
| 229 | WRITE_WORD(0x83000300, fb, REG_14); |
| 230 | SETUP_HW(fb); |
| 231 | WRITE_BYTE(1, fb, REG_16b1); |
| 232 | } |
| 233 | |
| 234 | static void |
| 235 | START_IMAGE_COLORMAP_ACCESS(struct stifb_info *fb) |
| 236 | { |
| 237 | SETUP_HW(fb); |
| 238 | WRITE_WORD(0xBBE0F000, fb, REG_10); |
| 239 | WRITE_WORD(0x03000300, fb, REG_14); |
| 240 | WRITE_WORD(~0, fb, REG_13); |
| 241 | } |
| 242 | |
| 243 | static void |
| 244 | WRITE_IMAGE_COLOR(struct stifb_info *fb, int index, int color) |
| 245 | { |
| 246 | SETUP_HW(fb); |
| 247 | WRITE_WORD(((0x100+index)<<2), fb, REG_3); |
| 248 | WRITE_WORD(color, fb, REG_4); |
| 249 | } |
| 250 | |
| 251 | static void |
| 252 | FINISH_IMAGE_COLORMAP_ACCESS(struct stifb_info *fb) |
| 253 | { |
| 254 | WRITE_WORD(0x400, fb, REG_2); |
| 255 | if (fb->info.var.bits_per_pixel == 32) { |
| 256 | WRITE_WORD(0x83000100, fb, REG_1); |
| 257 | } else { |
| 258 | if (fb->id == S9000_ID_ARTIST || fb->id == CRT_ID_VISUALIZE_EG) |
| 259 | WRITE_WORD(0x80000100, fb, REG_26); |
| 260 | else |
| 261 | WRITE_WORD(0x80000100, fb, REG_1); |
| 262 | } |
| 263 | SETUP_FB(fb); |
| 264 | } |
| 265 | |
| 266 | static void |
| 267 | SETUP_RAMDAC(struct stifb_info *fb) |
| 268 | { |
| 269 | SETUP_HW(fb); |
| 270 | WRITE_WORD(0x04000000, fb, 0x1020); |
| 271 | WRITE_WORD(0xff000000, fb, 0x1028); |
| 272 | } |
| 273 | |
| 274 | static void |
| 275 | CRX24_SETUP_RAMDAC(struct stifb_info *fb) |
| 276 | { |
| 277 | SETUP_HW(fb); |
| 278 | WRITE_WORD(0x04000000, fb, 0x1000); |
| 279 | WRITE_WORD(0x02000000, fb, 0x1004); |
| 280 | WRITE_WORD(0xff000000, fb, 0x1008); |
| 281 | WRITE_WORD(0x05000000, fb, 0x1000); |
| 282 | WRITE_WORD(0x02000000, fb, 0x1004); |
| 283 | WRITE_WORD(0x03000000, fb, 0x1008); |
| 284 | } |
| 285 | |
| 286 | #if 0 |
| 287 | static void |
| 288 | HCRX_SETUP_RAMDAC(struct stifb_info *fb) |
| 289 | { |
| 290 | WRITE_WORD(0xffffffff, fb, REG_32); |
| 291 | } |
| 292 | #endif |
| 293 | |
| 294 | static void |
| 295 | CRX24_SET_OVLY_MASK(struct stifb_info *fb) |
| 296 | { |
| 297 | SETUP_HW(fb); |
| 298 | WRITE_WORD(0x13a02000, fb, REG_11); |
| 299 | WRITE_WORD(0x03000300, fb, REG_14); |
| 300 | WRITE_WORD(0x000017f0, fb, REG_3); |
| 301 | WRITE_WORD(0xffffffff, fb, REG_13); |
| 302 | WRITE_WORD(0xffffffff, fb, REG_22); |
| 303 | WRITE_WORD(0x00000000, fb, REG_23); |
| 304 | } |
| 305 | |
| 306 | static void |
| 307 | ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable) |
| 308 | { |
| 309 | unsigned int value = enable ? 0x43000000 : 0x03000000; |
| 310 | SETUP_HW(fb); |
| 311 | WRITE_WORD(0x06000000, fb, 0x1030); |
| 312 | WRITE_WORD(value, fb, 0x1038); |
| 313 | } |
| 314 | |
| 315 | static void |
| 316 | CRX24_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable) |
| 317 | { |
| 318 | unsigned int value = enable ? 0x10000000 : 0x30000000; |
| 319 | SETUP_HW(fb); |
| 320 | WRITE_WORD(0x01000000, fb, 0x1000); |
| 321 | WRITE_WORD(0x02000000, fb, 0x1004); |
| 322 | WRITE_WORD(value, fb, 0x1008); |
| 323 | } |
| 324 | |
| 325 | static void |
| 326 | ARTIST_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable) |
| 327 | { |
| 328 | u32 DregsMiscVideo = REG_21; |
| 329 | u32 DregsMiscCtl = REG_27; |
| 330 | |
| 331 | SETUP_HW(fb); |
| 332 | if (enable) { |
| 333 | WRITE_WORD(READ_WORD(fb, DregsMiscVideo) | 0x0A000000, fb, DregsMiscVideo); |
| 334 | WRITE_WORD(READ_WORD(fb, DregsMiscCtl) | 0x00800000, fb, DregsMiscCtl); |
| 335 | } else { |
| 336 | WRITE_WORD(READ_WORD(fb, DregsMiscVideo) & ~0x0A000000, fb, DregsMiscVideo); |
| 337 | WRITE_WORD(READ_WORD(fb, DregsMiscCtl) & ~0x00800000, fb, DregsMiscCtl); |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | #define GET_ROMTABLE_INDEX(fb) \ |
| 342 | (READ_BYTE(fb, REG_16b3) - 1) |
| 343 | |
| 344 | #define HYPER_CONFIG_PLANES_24 0x00000100 |
| 345 | |
| 346 | #define IS_24_DEVICE(fb) \ |
| 347 | (fb->deviceSpecificConfig & HYPER_CONFIG_PLANES_24) |
| 348 | |
| 349 | #define IS_888_DEVICE(fb) \ |
| 350 | (!(IS_24_DEVICE(fb))) |
| 351 | |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 352 | #define GET_FIFO_SLOTS(fb, cnt, numslots) \ |
| 353 | { while (cnt < numslots) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | cnt = READ_WORD(fb, REG_34); \ |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 355 | cnt -= numslots; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | } |
| 357 | |
| 358 | #define IndexedDcd 0 /* Pixel data is indexed (pseudo) color */ |
| 359 | #define Otc04 2 /* Pixels in each longword transfer (4) */ |
| 360 | #define Otc32 5 /* Pixels in each longword transfer (32) */ |
| 361 | #define Ots08 3 /* Each pixel is size (8)d transfer (1) */ |
| 362 | #define OtsIndirect 6 /* Each bit goes through FG/BG color(8) */ |
| 363 | #define AddrLong 5 /* FB address is Long aligned (pixel) */ |
| 364 | #define BINovly 0x2 /* 8 bit overlay */ |
| 365 | #define BINapp0I 0x0 /* Application Buffer 0, Indexed */ |
| 366 | #define BINapp1I 0x1 /* Application Buffer 1, Indexed */ |
| 367 | #define BINapp0F8 0xa /* Application Buffer 0, Fractional 8-8-8 */ |
| 368 | #define BINattr 0xd /* Attribute Bitmap */ |
| 369 | #define RopSrc 0x3 |
| 370 | #define BitmapExtent08 3 /* Each write hits ( 8) bits in depth */ |
| 371 | #define BitmapExtent32 5 /* Each write hits (32) bits in depth */ |
| 372 | #define DataDynamic 0 /* Data register reloaded by direct access */ |
| 373 | #define MaskDynamic 1 /* Mask register reloaded by direct access */ |
| 374 | #define MaskOtc 0 /* Mask contains Object Count valid bits */ |
| 375 | |
| 376 | #define MaskAddrOffset(offset) (offset) |
| 377 | #define StaticReg(en) (en) |
| 378 | #define BGx(en) (en) |
| 379 | #define FGx(en) (en) |
| 380 | |
| 381 | #define BAJustPoint(offset) (offset) |
| 382 | #define BAIndexBase(base) (base) |
| 383 | #define BA(F,C,S,A,J,B,I) \ |
| 384 | (((F)<<31)|((C)<<27)|((S)<<24)|((A)<<21)|((J)<<16)|((B)<<12)|(I)) |
| 385 | |
| 386 | #define IBOvals(R,M,X,S,D,L,B,F) \ |
| 387 | (((R)<<8)|((M)<<16)|((X)<<24)|((S)<<29)|((D)<<28)|((L)<<31)|((B)<<1)|(F)) |
| 388 | |
| 389 | #define NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb, val) \ |
| 390 | WRITE_WORD(val, fb, REG_14) |
| 391 | |
| 392 | #define NGLE_QUICK_SET_DST_BM_ACCESS(fb, val) \ |
| 393 | WRITE_WORD(val, fb, REG_11) |
| 394 | |
| 395 | #define NGLE_QUICK_SET_CTL_PLN_REG(fb, val) \ |
| 396 | WRITE_WORD(val, fb, REG_12) |
| 397 | |
| 398 | #define NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, plnmsk32) \ |
| 399 | WRITE_WORD(plnmsk32, fb, REG_13) |
| 400 | |
| 401 | #define NGLE_REALLY_SET_IMAGE_FG_COLOR(fb, fg32) \ |
| 402 | WRITE_WORD(fg32, fb, REG_35) |
| 403 | |
| 404 | #define NGLE_SET_TRANSFERDATA(fb, val) \ |
| 405 | WRITE_WORD(val, fb, REG_8) |
| 406 | |
| 407 | #define NGLE_SET_DSTXY(fb, val) \ |
| 408 | WRITE_WORD(val, fb, REG_6) |
| 409 | |
| 410 | #define NGLE_LONG_FB_ADDRESS(fbaddrbase, x, y) ( \ |
| 411 | (u32) (fbaddrbase) + \ |
| 412 | ( (unsigned int) ( (y) << 13 ) | \ |
| 413 | (unsigned int) ( (x) << 2 ) ) \ |
| 414 | ) |
| 415 | |
| 416 | #define NGLE_BINC_SET_DSTADDR(fb, addr) \ |
| 417 | WRITE_WORD(addr, fb, REG_3) |
| 418 | |
| 419 | #define NGLE_BINC_SET_SRCADDR(fb, addr) \ |
| 420 | WRITE_WORD(addr, fb, REG_2) |
| 421 | |
| 422 | #define NGLE_BINC_SET_DSTMASK(fb, mask) \ |
| 423 | WRITE_WORD(mask, fb, REG_22) |
| 424 | |
| 425 | #define NGLE_BINC_WRITE32(fb, data32) \ |
| 426 | WRITE_WORD(data32, fb, REG_23) |
| 427 | |
| 428 | #define START_COLORMAPLOAD(fb, cmapBltCtlData32) \ |
| 429 | WRITE_WORD((cmapBltCtlData32), fb, REG_38) |
| 430 | |
| 431 | #define SET_LENXY_START_RECFILL(fb, lenxy) \ |
| 432 | WRITE_WORD(lenxy, fb, REG_9) |
| 433 | |
| 434 | static void |
| 435 | HYPER_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable) |
| 436 | { |
| 437 | u32 DregsHypMiscVideo = REG_33; |
| 438 | unsigned int value; |
| 439 | SETUP_HW(fb); |
| 440 | value = READ_WORD(fb, DregsHypMiscVideo); |
| 441 | if (enable) |
| 442 | value |= 0x0A000000; |
| 443 | else |
| 444 | value &= ~0x0A000000; |
| 445 | WRITE_WORD(value, fb, DregsHypMiscVideo); |
| 446 | } |
| 447 | |
| 448 | |
| 449 | /* BufferNumbers used by SETUP_ATTR_ACCESS() */ |
| 450 | #define BUFF0_CMAP0 0x00001e02 |
| 451 | #define BUFF1_CMAP0 0x02001e02 |
| 452 | #define BUFF1_CMAP3 0x0c001e02 |
| 453 | #define ARTIST_CMAP0 0x00000102 |
| 454 | #define HYPER_CMAP8 0x00000100 |
| 455 | #define HYPER_CMAP24 0x00000800 |
| 456 | |
| 457 | static void |
| 458 | SETUP_ATTR_ACCESS(struct stifb_info *fb, unsigned BufferNumber) |
| 459 | { |
| 460 | SETUP_HW(fb); |
| 461 | WRITE_WORD(0x2EA0D000, fb, REG_11); |
| 462 | WRITE_WORD(0x23000302, fb, REG_14); |
| 463 | WRITE_WORD(BufferNumber, fb, REG_12); |
| 464 | WRITE_WORD(0xffffffff, fb, REG_8); |
| 465 | } |
| 466 | |
| 467 | static void |
| 468 | SET_ATTR_SIZE(struct stifb_info *fb, int width, int height) |
| 469 | { |
| 470 | /* REG_6 seems to have special values when run on a |
| 471 | RDI precisionbook parisc laptop (INTERNAL_EG_DX1024 or |
| 472 | INTERNAL_EG_X1024). The values are: |
| 473 | 0x2f0: internal (LCD) & external display enabled |
| 474 | 0x2a0: external display only |
| 475 | 0x000: zero on standard artist graphic cards |
| 476 | */ |
| 477 | WRITE_WORD(0x00000000, fb, REG_6); |
| 478 | WRITE_WORD((width<<16) | height, fb, REG_9); |
| 479 | WRITE_WORD(0x05000000, fb, REG_6); |
| 480 | WRITE_WORD(0x00040001, fb, REG_9); |
| 481 | } |
| 482 | |
| 483 | static void |
| 484 | FINISH_ATTR_ACCESS(struct stifb_info *fb) |
| 485 | { |
| 486 | SETUP_HW(fb); |
| 487 | WRITE_WORD(0x00000000, fb, REG_12); |
| 488 | } |
| 489 | |
| 490 | static void |
| 491 | elkSetupPlanes(struct stifb_info *fb) |
| 492 | { |
| 493 | SETUP_RAMDAC(fb); |
| 494 | SETUP_FB(fb); |
| 495 | } |
| 496 | |
| 497 | static void |
| 498 | ngleSetupAttrPlanes(struct stifb_info *fb, int BufferNumber) |
| 499 | { |
| 500 | SETUP_ATTR_ACCESS(fb, BufferNumber); |
| 501 | SET_ATTR_SIZE(fb, fb->info.var.xres, fb->info.var.yres); |
| 502 | FINISH_ATTR_ACCESS(fb); |
| 503 | SETUP_FB(fb); |
| 504 | } |
| 505 | |
| 506 | |
| 507 | static void |
| 508 | rattlerSetupPlanes(struct stifb_info *fb) |
| 509 | { |
| 510 | CRX24_SETUP_RAMDAC(fb); |
| 511 | |
| 512 | /* replacement for: SETUP_FB(fb, CRX24_OVERLAY_PLANES); */ |
| 513 | WRITE_WORD(0x83000300, fb, REG_14); |
| 514 | SETUP_HW(fb); |
| 515 | WRITE_BYTE(1, fb, REG_16b1); |
| 516 | |
| 517 | fb_memset(fb->info.fix.smem_start, 0xff, |
| 518 | fb->info.var.yres*fb->info.fix.line_length); |
| 519 | |
| 520 | CRX24_SET_OVLY_MASK(fb); |
| 521 | SETUP_FB(fb); |
| 522 | } |
| 523 | |
| 524 | |
| 525 | #define HYPER_CMAP_TYPE 0 |
| 526 | #define NGLE_CMAP_INDEXED0_TYPE 0 |
| 527 | #define NGLE_CMAP_OVERLAY_TYPE 3 |
| 528 | |
| 529 | /* typedef of LUT (Colormap) BLT Control Register */ |
| 530 | typedef union /* Note assumption that fields are packed left-to-right */ |
| 531 | { u32 all; |
| 532 | struct |
| 533 | { |
| 534 | unsigned enable : 1; |
| 535 | unsigned waitBlank : 1; |
| 536 | unsigned reserved1 : 4; |
| 537 | unsigned lutOffset : 10; /* Within destination LUT */ |
| 538 | unsigned lutType : 2; /* Cursor, image, overlay */ |
| 539 | unsigned reserved2 : 4; |
| 540 | unsigned length : 10; |
| 541 | } fields; |
| 542 | } NgleLutBltCtl; |
| 543 | |
| 544 | |
| 545 | #if 0 |
| 546 | static NgleLutBltCtl |
| 547 | setNgleLutBltCtl(struct stifb_info *fb, int offsetWithinLut, int length) |
| 548 | { |
| 549 | NgleLutBltCtl lutBltCtl; |
| 550 | |
| 551 | /* set enable, zero reserved fields */ |
| 552 | lutBltCtl.all = 0x80000000; |
| 553 | lutBltCtl.fields.length = length; |
| 554 | |
| 555 | switch (fb->id) |
| 556 | { |
| 557 | case S9000_ID_A1439A: /* CRX24 */ |
| 558 | if (fb->var.bits_per_pixel == 8) { |
| 559 | lutBltCtl.fields.lutType = NGLE_CMAP_OVERLAY_TYPE; |
| 560 | lutBltCtl.fields.lutOffset = 0; |
| 561 | } else { |
| 562 | lutBltCtl.fields.lutType = NGLE_CMAP_INDEXED0_TYPE; |
| 563 | lutBltCtl.fields.lutOffset = 0 * 256; |
| 564 | } |
| 565 | break; |
| 566 | |
| 567 | case S9000_ID_ARTIST: |
| 568 | lutBltCtl.fields.lutType = NGLE_CMAP_INDEXED0_TYPE; |
| 569 | lutBltCtl.fields.lutOffset = 0 * 256; |
| 570 | break; |
| 571 | |
| 572 | default: |
| 573 | lutBltCtl.fields.lutType = NGLE_CMAP_INDEXED0_TYPE; |
| 574 | lutBltCtl.fields.lutOffset = 0; |
| 575 | break; |
| 576 | } |
| 577 | |
| 578 | /* Offset points to start of LUT. Adjust for within LUT */ |
| 579 | lutBltCtl.fields.lutOffset += offsetWithinLut; |
| 580 | |
| 581 | return lutBltCtl; |
| 582 | } |
| 583 | #endif |
| 584 | |
| 585 | static NgleLutBltCtl |
| 586 | setHyperLutBltCtl(struct stifb_info *fb, int offsetWithinLut, int length) |
| 587 | { |
| 588 | NgleLutBltCtl lutBltCtl; |
| 589 | |
| 590 | /* set enable, zero reserved fields */ |
| 591 | lutBltCtl.all = 0x80000000; |
| 592 | |
| 593 | lutBltCtl.fields.length = length; |
| 594 | lutBltCtl.fields.lutType = HYPER_CMAP_TYPE; |
| 595 | |
| 596 | /* Expect lutIndex to be 0 or 1 for image cmaps, 2 or 3 for overlay cmaps */ |
| 597 | if (fb->info.var.bits_per_pixel == 8) |
| 598 | lutBltCtl.fields.lutOffset = 2 * 256; |
| 599 | else |
| 600 | lutBltCtl.fields.lutOffset = 0 * 256; |
| 601 | |
| 602 | /* Offset points to start of LUT. Adjust for within LUT */ |
| 603 | lutBltCtl.fields.lutOffset += offsetWithinLut; |
| 604 | |
| 605 | return lutBltCtl; |
| 606 | } |
| 607 | |
| 608 | |
| 609 | static void hyperUndoITE(struct stifb_info *fb) |
| 610 | { |
| 611 | int nFreeFifoSlots = 0; |
| 612 | u32 fbAddr; |
| 613 | |
| 614 | NGLE_LOCK(fb); |
| 615 | |
| 616 | GET_FIFO_SLOTS(fb, nFreeFifoSlots, 1); |
| 617 | WRITE_WORD(0xffffffff, fb, REG_32); |
| 618 | |
| 619 | /* Write overlay transparency mask so only entry 255 is transparent */ |
| 620 | |
| 621 | /* Hardware setup for full-depth write to "magic" location */ |
| 622 | GET_FIFO_SLOTS(fb, nFreeFifoSlots, 7); |
| 623 | NGLE_QUICK_SET_DST_BM_ACCESS(fb, |
| 624 | BA(IndexedDcd, Otc04, Ots08, AddrLong, |
| 625 | BAJustPoint(0), BINovly, BAIndexBase(0))); |
| 626 | NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb, |
| 627 | IBOvals(RopSrc, MaskAddrOffset(0), |
| 628 | BitmapExtent08, StaticReg(0), |
| 629 | DataDynamic, MaskOtc, BGx(0), FGx(0))); |
| 630 | |
| 631 | /* Now prepare to write to the "magic" location */ |
| 632 | fbAddr = NGLE_LONG_FB_ADDRESS(0, 1532, 0); |
| 633 | NGLE_BINC_SET_DSTADDR(fb, fbAddr); |
| 634 | NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xffffff); |
| 635 | NGLE_BINC_SET_DSTMASK(fb, 0xffffffff); |
| 636 | |
| 637 | /* Finally, write a zero to clear the mask */ |
| 638 | NGLE_BINC_WRITE32(fb, 0); |
| 639 | |
| 640 | NGLE_UNLOCK(fb); |
| 641 | } |
| 642 | |
| 643 | static void |
| 644 | ngleDepth8_ClearImagePlanes(struct stifb_info *fb) |
| 645 | { |
| 646 | /* FIXME! */ |
| 647 | } |
| 648 | |
| 649 | static void |
| 650 | ngleDepth24_ClearImagePlanes(struct stifb_info *fb) |
| 651 | { |
| 652 | /* FIXME! */ |
| 653 | } |
| 654 | |
| 655 | static void |
| 656 | ngleResetAttrPlanes(struct stifb_info *fb, unsigned int ctlPlaneReg) |
| 657 | { |
| 658 | int nFreeFifoSlots = 0; |
| 659 | u32 packed_dst; |
| 660 | u32 packed_len; |
| 661 | |
| 662 | NGLE_LOCK(fb); |
| 663 | |
| 664 | GET_FIFO_SLOTS(fb, nFreeFifoSlots, 4); |
| 665 | NGLE_QUICK_SET_DST_BM_ACCESS(fb, |
| 666 | BA(IndexedDcd, Otc32, OtsIndirect, |
| 667 | AddrLong, BAJustPoint(0), |
| 668 | BINattr, BAIndexBase(0))); |
| 669 | NGLE_QUICK_SET_CTL_PLN_REG(fb, ctlPlaneReg); |
| 670 | NGLE_SET_TRANSFERDATA(fb, 0xffffffff); |
| 671 | |
| 672 | NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb, |
| 673 | IBOvals(RopSrc, MaskAddrOffset(0), |
| 674 | BitmapExtent08, StaticReg(1), |
| 675 | DataDynamic, MaskOtc, |
| 676 | BGx(0), FGx(0))); |
| 677 | packed_dst = 0; |
| 678 | packed_len = (fb->info.var.xres << 16) | fb->info.var.yres; |
| 679 | GET_FIFO_SLOTS(fb, nFreeFifoSlots, 2); |
| 680 | NGLE_SET_DSTXY(fb, packed_dst); |
| 681 | SET_LENXY_START_RECFILL(fb, packed_len); |
| 682 | |
| 683 | /* |
| 684 | * In order to work around an ELK hardware problem (Buffy doesn't |
| 685 | * always flush it's buffers when writing to the attribute |
| 686 | * planes), at least 4 pixels must be written to the attribute |
| 687 | * planes starting at (X == 1280) and (Y != to the last Y written |
| 688 | * by BIF): |
| 689 | */ |
| 690 | |
| 691 | if (fb->id == S9000_ID_A1659A) { /* ELK_DEVICE_ID */ |
| 692 | /* It's safe to use scanline zero: */ |
| 693 | packed_dst = (1280 << 16); |
| 694 | GET_FIFO_SLOTS(fb, nFreeFifoSlots, 2); |
| 695 | NGLE_SET_DSTXY(fb, packed_dst); |
| 696 | packed_len = (4 << 16) | 1; |
| 697 | SET_LENXY_START_RECFILL(fb, packed_len); |
| 698 | } /* ELK Hardware Kludge */ |
| 699 | |
| 700 | /**** Finally, set the Control Plane Register back to zero: ****/ |
| 701 | GET_FIFO_SLOTS(fb, nFreeFifoSlots, 1); |
| 702 | NGLE_QUICK_SET_CTL_PLN_REG(fb, 0); |
| 703 | |
| 704 | NGLE_UNLOCK(fb); |
| 705 | } |
| 706 | |
| 707 | static void |
| 708 | ngleClearOverlayPlanes(struct stifb_info *fb, int mask, int data) |
| 709 | { |
| 710 | int nFreeFifoSlots = 0; |
| 711 | u32 packed_dst; |
| 712 | u32 packed_len; |
| 713 | |
| 714 | NGLE_LOCK(fb); |
| 715 | |
| 716 | /* Hardware setup */ |
| 717 | GET_FIFO_SLOTS(fb, nFreeFifoSlots, 8); |
| 718 | NGLE_QUICK_SET_DST_BM_ACCESS(fb, |
| 719 | BA(IndexedDcd, Otc04, Ots08, AddrLong, |
| 720 | BAJustPoint(0), BINovly, BAIndexBase(0))); |
| 721 | |
| 722 | NGLE_SET_TRANSFERDATA(fb, 0xffffffff); /* Write foreground color */ |
| 723 | |
| 724 | NGLE_REALLY_SET_IMAGE_FG_COLOR(fb, data); |
| 725 | NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, mask); |
| 726 | |
| 727 | packed_dst = 0; |
| 728 | packed_len = (fb->info.var.xres << 16) | fb->info.var.yres; |
| 729 | NGLE_SET_DSTXY(fb, packed_dst); |
| 730 | |
| 731 | /* Write zeroes to overlay planes */ |
| 732 | NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb, |
| 733 | IBOvals(RopSrc, MaskAddrOffset(0), |
| 734 | BitmapExtent08, StaticReg(0), |
| 735 | DataDynamic, MaskOtc, BGx(0), FGx(0))); |
| 736 | |
| 737 | SET_LENXY_START_RECFILL(fb, packed_len); |
| 738 | |
| 739 | NGLE_UNLOCK(fb); |
| 740 | } |
| 741 | |
| 742 | static void |
| 743 | hyperResetPlanes(struct stifb_info *fb, int enable) |
| 744 | { |
| 745 | unsigned int controlPlaneReg; |
| 746 | |
| 747 | NGLE_LOCK(fb); |
| 748 | |
| 749 | if (IS_24_DEVICE(fb)) |
| 750 | if (fb->info.var.bits_per_pixel == 32) |
| 751 | controlPlaneReg = 0x04000F00; |
| 752 | else |
| 753 | controlPlaneReg = 0x00000F00; /* 0x00000800 should be enought, but lets clear all 4 bits */ |
| 754 | else |
| 755 | controlPlaneReg = 0x00000F00; /* 0x00000100 should be enought, but lets clear all 4 bits */ |
| 756 | |
| 757 | switch (enable) { |
| 758 | case ENABLE: |
| 759 | /* clear screen */ |
| 760 | if (IS_24_DEVICE(fb)) |
| 761 | ngleDepth24_ClearImagePlanes(fb); |
| 762 | else |
| 763 | ngleDepth8_ClearImagePlanes(fb); |
| 764 | |
| 765 | /* Paint attribute planes for default case. |
| 766 | * On Hyperdrive, this means all windows using overlay cmap 0. */ |
| 767 | ngleResetAttrPlanes(fb, controlPlaneReg); |
| 768 | |
| 769 | /* clear overlay planes */ |
| 770 | ngleClearOverlayPlanes(fb, 0xff, 255); |
| 771 | |
| 772 | /************************************************** |
| 773 | ** Also need to counteract ITE settings |
| 774 | **************************************************/ |
| 775 | hyperUndoITE(fb); |
| 776 | break; |
| 777 | |
| 778 | case DISABLE: |
| 779 | /* clear screen */ |
| 780 | if (IS_24_DEVICE(fb)) |
| 781 | ngleDepth24_ClearImagePlanes(fb); |
| 782 | else |
| 783 | ngleDepth8_ClearImagePlanes(fb); |
| 784 | ngleResetAttrPlanes(fb, controlPlaneReg); |
| 785 | ngleClearOverlayPlanes(fb, 0xff, 0); |
| 786 | break; |
| 787 | |
| 788 | case -1: /* RESET */ |
| 789 | hyperUndoITE(fb); |
| 790 | ngleResetAttrPlanes(fb, controlPlaneReg); |
| 791 | break; |
| 792 | } |
| 793 | |
| 794 | NGLE_UNLOCK(fb); |
| 795 | } |
| 796 | |
| 797 | /* Return pointer to in-memory structure holding ELK device-dependent ROM values. */ |
| 798 | |
| 799 | static void |
| 800 | ngleGetDeviceRomData(struct stifb_info *fb) |
| 801 | { |
| 802 | #if 0 |
| 803 | XXX: FIXME: !!! |
| 804 | int *pBytePerLongDevDepData;/* data byte == LSB */ |
| 805 | int *pRomTable; |
| 806 | NgleDevRomData *pPackedDevRomData; |
| 807 | int sizePackedDevRomData = sizeof(*pPackedDevRomData); |
| 808 | char *pCard8; |
| 809 | int i; |
| 810 | char *mapOrigin = NULL; |
| 811 | |
| 812 | int romTableIdx; |
| 813 | |
| 814 | pPackedDevRomData = fb->ngle_rom; |
| 815 | |
| 816 | SETUP_HW(fb); |
| 817 | if (fb->id == S9000_ID_ARTIST) { |
| 818 | pPackedDevRomData->cursor_pipeline_delay = 4; |
| 819 | pPackedDevRomData->video_interleaves = 4; |
| 820 | } else { |
| 821 | /* Get pointer to unpacked byte/long data in ROM */ |
| 822 | pBytePerLongDevDepData = fb->sti->regions[NGLEDEVDEPROM_CRT_REGION]; |
| 823 | |
| 824 | /* Tomcat supports several resolutions: 1280x1024, 1024x768, 640x480 */ |
| 825 | if (fb->id == S9000_ID_TOMCAT) |
| 826 | { |
| 827 | /* jump to the correct ROM table */ |
| 828 | GET_ROMTABLE_INDEX(romTableIdx); |
| 829 | while (romTableIdx > 0) |
| 830 | { |
| 831 | pCard8 = (Card8 *) pPackedDevRomData; |
| 832 | pRomTable = pBytePerLongDevDepData; |
| 833 | /* Pack every fourth byte from ROM into structure */ |
| 834 | for (i = 0; i < sizePackedDevRomData; i++) |
| 835 | { |
| 836 | *pCard8++ = (Card8) (*pRomTable++); |
| 837 | } |
| 838 | |
| 839 | pBytePerLongDevDepData = (Card32 *) |
| 840 | ((Card8 *) pBytePerLongDevDepData + |
| 841 | pPackedDevRomData->sizeof_ngle_data); |
| 842 | |
| 843 | romTableIdx--; |
| 844 | } |
| 845 | } |
| 846 | |
| 847 | pCard8 = (Card8 *) pPackedDevRomData; |
| 848 | |
| 849 | /* Pack every fourth byte from ROM into structure */ |
| 850 | for (i = 0; i < sizePackedDevRomData; i++) |
| 851 | { |
| 852 | *pCard8++ = (Card8) (*pBytePerLongDevDepData++); |
| 853 | } |
| 854 | } |
| 855 | |
| 856 | SETUP_FB(fb); |
| 857 | #endif |
| 858 | } |
| 859 | |
| 860 | |
| 861 | #define HYPERBOWL_MODE_FOR_8_OVER_88_LUT0_NO_TRANSPARENCIES 4 |
| 862 | #define HYPERBOWL_MODE01_8_24_LUT0_TRANSPARENT_LUT1_OPAQUE 8 |
| 863 | #define HYPERBOWL_MODE01_8_24_LUT0_OPAQUE_LUT1_OPAQUE 10 |
| 864 | #define HYPERBOWL_MODE2_8_24 15 |
| 865 | |
| 866 | /* HCRX specific boot-time initialization */ |
| 867 | static void __init |
| 868 | SETUP_HCRX(struct stifb_info *fb) |
| 869 | { |
| 870 | int hyperbowl; |
| 871 | int nFreeFifoSlots = 0; |
| 872 | |
| 873 | if (fb->id != S9000_ID_HCRX) |
| 874 | return; |
| 875 | |
| 876 | /* Initialize Hyperbowl registers */ |
| 877 | GET_FIFO_SLOTS(fb, nFreeFifoSlots, 7); |
| 878 | |
| 879 | if (IS_24_DEVICE(fb)) { |
| 880 | hyperbowl = (fb->info.var.bits_per_pixel == 32) ? |
| 881 | HYPERBOWL_MODE01_8_24_LUT0_TRANSPARENT_LUT1_OPAQUE : |
| 882 | HYPERBOWL_MODE01_8_24_LUT0_OPAQUE_LUT1_OPAQUE; |
| 883 | |
| 884 | /* First write to Hyperbowl must happen twice (bug) */ |
| 885 | WRITE_WORD(hyperbowl, fb, REG_40); |
| 886 | WRITE_WORD(hyperbowl, fb, REG_40); |
| 887 | |
| 888 | WRITE_WORD(HYPERBOWL_MODE2_8_24, fb, REG_39); |
| 889 | |
| 890 | WRITE_WORD(0x014c0148, fb, REG_42); /* Set lut 0 to be the direct color */ |
| 891 | WRITE_WORD(0x404c4048, fb, REG_43); |
| 892 | WRITE_WORD(0x034c0348, fb, REG_44); |
| 893 | WRITE_WORD(0x444c4448, fb, REG_45); |
| 894 | } else { |
| 895 | hyperbowl = HYPERBOWL_MODE_FOR_8_OVER_88_LUT0_NO_TRANSPARENCIES; |
| 896 | |
| 897 | /* First write to Hyperbowl must happen twice (bug) */ |
| 898 | WRITE_WORD(hyperbowl, fb, REG_40); |
| 899 | WRITE_WORD(hyperbowl, fb, REG_40); |
| 900 | |
| 901 | WRITE_WORD(0x00000000, fb, REG_42); |
| 902 | WRITE_WORD(0x00000000, fb, REG_43); |
| 903 | WRITE_WORD(0x00000000, fb, REG_44); |
| 904 | WRITE_WORD(0x444c4048, fb, REG_45); |
| 905 | } |
| 906 | } |
| 907 | |
| 908 | |
| 909 | /* ------------------- driver specific functions --------------------------- */ |
| 910 | |
| 911 | #define TMPBUFLEN 2048 |
| 912 | |
| 913 | static ssize_t |
| 914 | stifb_read(struct file *file, char *buf, size_t count, loff_t *ppos) |
| 915 | { |
| 916 | unsigned long p = *ppos; |
| 917 | struct inode *inode = file->f_dentry->d_inode; |
| 918 | int fbidx = iminor(inode); |
| 919 | struct fb_info *info = registered_fb[fbidx]; |
| 920 | char tmpbuf[TMPBUFLEN]; |
| 921 | |
| 922 | if (!info || ! info->screen_base) |
| 923 | return -ENODEV; |
| 924 | |
| 925 | if (p >= info->fix.smem_len) |
| 926 | return 0; |
| 927 | if (count >= info->fix.smem_len) |
| 928 | count = info->fix.smem_len; |
| 929 | if (count + p > info->fix.smem_len) |
| 930 | count = info->fix.smem_len - p; |
| 931 | if (count > sizeof(tmpbuf)) |
| 932 | count = sizeof(tmpbuf); |
| 933 | if (count) { |
| 934 | char *base_addr; |
| 935 | |
| 936 | base_addr = info->screen_base; |
| 937 | memcpy_fromio(&tmpbuf, base_addr+p, count); |
| 938 | count -= copy_to_user(buf, &tmpbuf, count); |
| 939 | if (!count) |
| 940 | return -EFAULT; |
| 941 | *ppos += count; |
| 942 | } |
| 943 | return count; |
| 944 | } |
| 945 | |
| 946 | static ssize_t |
| 947 | stifb_write(struct file *file, const char *buf, size_t count, loff_t *ppos) |
| 948 | { |
| 949 | struct inode *inode = file->f_dentry->d_inode; |
| 950 | int fbidx = iminor(inode); |
| 951 | struct fb_info *info = registered_fb[fbidx]; |
| 952 | unsigned long p = *ppos; |
| 953 | size_t c; |
| 954 | int err; |
| 955 | char tmpbuf[TMPBUFLEN]; |
| 956 | |
| 957 | if (!info || !info->screen_base) |
| 958 | return -ENODEV; |
| 959 | |
| 960 | if (p > info->fix.smem_len) |
| 961 | return -ENOSPC; |
| 962 | if (count >= info->fix.smem_len) |
| 963 | count = info->fix.smem_len; |
| 964 | err = 0; |
| 965 | if (count + p > info->fix.smem_len) { |
| 966 | count = info->fix.smem_len - p; |
| 967 | err = -ENOSPC; |
| 968 | } |
| 969 | |
| 970 | p += (unsigned long)info->screen_base; |
| 971 | c = count; |
| 972 | while (c) { |
| 973 | int len = c > sizeof(tmpbuf) ? sizeof(tmpbuf) : c; |
| 974 | err = -EFAULT; |
| 975 | if (copy_from_user(&tmpbuf, buf, len)) |
| 976 | break; |
| 977 | memcpy_toio(p, &tmpbuf, len); |
| 978 | c -= len; |
| 979 | p += len; |
| 980 | buf += len; |
| 981 | *ppos += len; |
| 982 | } |
| 983 | if (count-c) |
| 984 | return (count-c); |
| 985 | return err; |
| 986 | } |
| 987 | |
| 988 | static int |
| 989 | stifb_setcolreg(u_int regno, u_int red, u_int green, |
| 990 | u_int blue, u_int transp, struct fb_info *info) |
| 991 | { |
| 992 | struct stifb_info *fb = (struct stifb_info *) info; |
| 993 | u32 color; |
| 994 | |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 995 | if (regno >= NR_PALETTE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | return 1; |
| 997 | |
| 998 | red >>= 8; |
| 999 | green >>= 8; |
| 1000 | blue >>= 8; |
| 1001 | |
| 1002 | DEBUG_OFF(); |
| 1003 | |
| 1004 | START_IMAGE_COLORMAP_ACCESS(fb); |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 1005 | |
| 1006 | if (unlikely(fb->info.var.grayscale)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | /* gray = 0.30*R + 0.59*G + 0.11*B */ |
| 1008 | color = ((red * 77) + |
| 1009 | (green * 151) + |
| 1010 | (blue * 28)) >> 8; |
| 1011 | } else { |
| 1012 | color = ((red << 16) | |
| 1013 | (green << 8) | |
| 1014 | (blue)); |
| 1015 | } |
| 1016 | |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 1017 | if (fb->info.fix.visual == FB_VISUAL_DIRECTCOLOR) { |
| 1018 | struct fb_var_screeninfo *var = &fb->info.var; |
| 1019 | if (regno < 16) |
| 1020 | ((u32 *)fb->info.pseudo_palette)[regno] = |
| 1021 | regno << var->red.offset | |
| 1022 | regno << var->green.offset | |
| 1023 | regno << var->blue.offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | } |
| 1025 | |
| 1026 | WRITE_IMAGE_COLOR(fb, regno, color); |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 1027 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | if (fb->id == S9000_ID_HCRX) { |
| 1029 | NgleLutBltCtl lutBltCtl; |
| 1030 | |
| 1031 | lutBltCtl = setHyperLutBltCtl(fb, |
| 1032 | 0, /* Offset w/i LUT */ |
| 1033 | 256); /* Load entire LUT */ |
| 1034 | NGLE_BINC_SET_SRCADDR(fb, |
| 1035 | NGLE_LONG_FB_ADDRESS(0, 0x100, 0)); |
| 1036 | /* 0x100 is same as used in WRITE_IMAGE_COLOR() */ |
| 1037 | START_COLORMAPLOAD(fb, lutBltCtl.all); |
| 1038 | SETUP_FB(fb); |
| 1039 | } else { |
| 1040 | /* cleanup colormap hardware */ |
| 1041 | FINISH_IMAGE_COLORMAP_ACCESS(fb); |
| 1042 | } |
| 1043 | |
| 1044 | DEBUG_ON(); |
| 1045 | |
| 1046 | return 0; |
| 1047 | } |
| 1048 | |
| 1049 | static int |
| 1050 | stifb_blank(int blank_mode, struct fb_info *info) |
| 1051 | { |
| 1052 | struct stifb_info *fb = (struct stifb_info *) info; |
| 1053 | int enable = (blank_mode == 0) ? ENABLE : DISABLE; |
| 1054 | |
| 1055 | switch (fb->id) { |
| 1056 | case S9000_ID_A1439A: |
| 1057 | CRX24_ENABLE_DISABLE_DISPLAY(fb, enable); |
| 1058 | break; |
| 1059 | case CRT_ID_VISUALIZE_EG: |
| 1060 | case S9000_ID_ARTIST: |
| 1061 | ARTIST_ENABLE_DISABLE_DISPLAY(fb, enable); |
| 1062 | break; |
| 1063 | case S9000_ID_HCRX: |
| 1064 | HYPER_ENABLE_DISABLE_DISPLAY(fb, enable); |
| 1065 | break; |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 1066 | case S9000_ID_A1659A: /* fall through */ |
| 1067 | case S9000_ID_TIMBER: |
| 1068 | case CRX24_OVERLAY_PLANES: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | default: |
| 1070 | ENABLE_DISABLE_DISPLAY(fb, enable); |
| 1071 | break; |
| 1072 | } |
| 1073 | |
| 1074 | SETUP_FB(fb); |
| 1075 | return 0; |
| 1076 | } |
| 1077 | |
| 1078 | static void __init |
| 1079 | stifb_init_display(struct stifb_info *fb) |
| 1080 | { |
| 1081 | int id = fb->id; |
| 1082 | |
| 1083 | SETUP_FB(fb); |
| 1084 | |
| 1085 | /* HCRX specific initialization */ |
| 1086 | SETUP_HCRX(fb); |
| 1087 | |
| 1088 | /* |
| 1089 | if (id == S9000_ID_HCRX) |
| 1090 | hyperInitSprite(fb); |
| 1091 | else |
| 1092 | ngleInitSprite(fb); |
| 1093 | */ |
| 1094 | |
| 1095 | /* Initialize the image planes. */ |
| 1096 | switch (id) { |
| 1097 | case S9000_ID_HCRX: |
| 1098 | hyperResetPlanes(fb, ENABLE); |
| 1099 | break; |
| 1100 | case S9000_ID_A1439A: |
| 1101 | rattlerSetupPlanes(fb); |
| 1102 | break; |
| 1103 | case S9000_ID_A1659A: |
| 1104 | case S9000_ID_ARTIST: |
| 1105 | case CRT_ID_VISUALIZE_EG: |
| 1106 | elkSetupPlanes(fb); |
| 1107 | break; |
| 1108 | } |
| 1109 | |
| 1110 | /* Clear attribute planes on non HCRX devices. */ |
| 1111 | switch (id) { |
| 1112 | case S9000_ID_A1659A: |
| 1113 | case S9000_ID_A1439A: |
| 1114 | if (fb->info.var.bits_per_pixel == 32) |
| 1115 | ngleSetupAttrPlanes(fb, BUFF1_CMAP3); |
| 1116 | else { |
| 1117 | ngleSetupAttrPlanes(fb, BUFF1_CMAP0); |
| 1118 | } |
| 1119 | if (id == S9000_ID_A1439A) |
| 1120 | ngleClearOverlayPlanes(fb, 0xff, 0); |
| 1121 | break; |
| 1122 | case S9000_ID_ARTIST: |
| 1123 | case CRT_ID_VISUALIZE_EG: |
| 1124 | if (fb->info.var.bits_per_pixel == 32) |
| 1125 | ngleSetupAttrPlanes(fb, BUFF1_CMAP3); |
| 1126 | else { |
| 1127 | ngleSetupAttrPlanes(fb, ARTIST_CMAP0); |
| 1128 | } |
| 1129 | break; |
| 1130 | } |
| 1131 | stifb_blank(0, (struct fb_info *)fb); /* 0=enable screen */ |
| 1132 | |
| 1133 | SETUP_FB(fb); |
| 1134 | } |
| 1135 | |
| 1136 | /* ------------ Interfaces to hardware functions ------------ */ |
| 1137 | |
| 1138 | static struct fb_ops stifb_ops = { |
| 1139 | .owner = THIS_MODULE, |
| 1140 | .fb_read = stifb_read, |
| 1141 | .fb_write = stifb_write, |
| 1142 | .fb_setcolreg = stifb_setcolreg, |
| 1143 | .fb_blank = stifb_blank, |
| 1144 | .fb_fillrect = cfb_fillrect, |
| 1145 | .fb_copyarea = cfb_copyarea, |
| 1146 | .fb_imageblit = cfb_imageblit, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | }; |
| 1148 | |
| 1149 | |
| 1150 | /* |
| 1151 | * Initialization |
| 1152 | */ |
| 1153 | |
| 1154 | int __init |
| 1155 | stifb_init_fb(struct sti_struct *sti, int bpp_pref) |
| 1156 | { |
| 1157 | struct fb_fix_screeninfo *fix; |
| 1158 | struct fb_var_screeninfo *var; |
| 1159 | struct stifb_info *fb; |
| 1160 | struct fb_info *info; |
| 1161 | unsigned long sti_rom_address; |
| 1162 | char *dev_name; |
| 1163 | int bpp, xres, yres; |
| 1164 | |
| 1165 | fb = kmalloc(sizeof(*fb), GFP_ATOMIC); |
| 1166 | if (!fb) { |
| 1167 | printk(KERN_ERR "stifb: Could not allocate stifb structure\n"); |
| 1168 | return -ENODEV; |
| 1169 | } |
| 1170 | |
| 1171 | info = &fb->info; |
| 1172 | |
| 1173 | /* set struct to a known state */ |
| 1174 | memset(fb, 0, sizeof(*fb)); |
| 1175 | fix = &info->fix; |
| 1176 | var = &info->var; |
| 1177 | |
| 1178 | fb->sti = sti; |
| 1179 | /* store upper 32bits of the graphics id */ |
| 1180 | fb->id = fb->sti->graphics_id[0]; |
| 1181 | |
| 1182 | /* only supported cards are allowed */ |
| 1183 | switch (fb->id) { |
| 1184 | case CRT_ID_VISUALIZE_EG: |
| 1185 | /* look for a double buffering device like e.g. the |
| 1186 | "INTERNAL_EG_DX1024" in the RDI precisionbook laptop |
| 1187 | which won't work. The same device in non-double |
| 1188 | buffering mode returns "INTERNAL_EG_X1024". */ |
| 1189 | if (strstr(sti->outptr.dev_name, "EG_DX")) { |
| 1190 | printk(KERN_WARNING |
| 1191 | "stifb: ignoring '%s'. Disable double buffering in IPL menu.\n", |
| 1192 | sti->outptr.dev_name); |
| 1193 | goto out_err0; |
| 1194 | } |
| 1195 | /* fall though */ |
| 1196 | case S9000_ID_ARTIST: |
| 1197 | case S9000_ID_HCRX: |
| 1198 | case S9000_ID_TIMBER: |
| 1199 | case S9000_ID_A1659A: |
| 1200 | case S9000_ID_A1439A: |
| 1201 | break; |
| 1202 | default: |
| 1203 | printk(KERN_WARNING "stifb: '%s' (id: 0x%08x) not supported.\n", |
| 1204 | sti->outptr.dev_name, fb->id); |
| 1205 | goto out_err0; |
| 1206 | } |
| 1207 | |
| 1208 | /* default to 8 bpp on most graphic chips */ |
| 1209 | bpp = 8; |
| 1210 | xres = sti_onscreen_x(fb->sti); |
| 1211 | yres = sti_onscreen_y(fb->sti); |
| 1212 | |
| 1213 | ngleGetDeviceRomData(fb); |
| 1214 | |
| 1215 | /* get (virtual) io region base addr */ |
| 1216 | fix->mmio_start = REGION_BASE(fb,2); |
| 1217 | fix->mmio_len = 0x400000; |
| 1218 | |
| 1219 | /* Reject any device not in the NGLE family */ |
| 1220 | switch (fb->id) { |
| 1221 | case S9000_ID_A1659A: /* CRX/A1659A */ |
| 1222 | break; |
| 1223 | case S9000_ID_ELM: /* GRX, grayscale but else same as A1659A */ |
| 1224 | var->grayscale = 1; |
| 1225 | fb->id = S9000_ID_A1659A; |
| 1226 | break; |
| 1227 | case S9000_ID_TIMBER: /* HP9000/710 Any (may be a grayscale device) */ |
| 1228 | dev_name = fb->sti->outptr.dev_name; |
| 1229 | if (strstr(dev_name, "GRAYSCALE") || |
| 1230 | strstr(dev_name, "Grayscale") || |
| 1231 | strstr(dev_name, "grayscale")) |
| 1232 | var->grayscale = 1; |
| 1233 | break; |
| 1234 | case S9000_ID_TOMCAT: /* Dual CRX, behaves else like a CRX */ |
| 1235 | /* FIXME: TomCat supports two heads: |
| 1236 | * fb.iobase = REGION_BASE(fb_info,3); |
| 1237 | * fb.screen_base = (void*) REGION_BASE(fb_info,2); |
| 1238 | * for now we only support the left one ! */ |
| 1239 | xres = fb->ngle_rom.x_size_visible; |
| 1240 | yres = fb->ngle_rom.y_size_visible; |
| 1241 | fb->id = S9000_ID_A1659A; |
| 1242 | break; |
| 1243 | case S9000_ID_A1439A: /* CRX24/A1439A */ |
| 1244 | bpp = 32; |
| 1245 | break; |
| 1246 | case S9000_ID_HCRX: /* Hyperdrive/HCRX */ |
| 1247 | memset(&fb->ngle_rom, 0, sizeof(fb->ngle_rom)); |
| 1248 | if ((fb->sti->regions_phys[0] & 0xfc000000) == |
| 1249 | (fb->sti->regions_phys[2] & 0xfc000000)) |
Helge Deller | 5d6d164 | 2006-01-10 20:48:03 -0500 | [diff] [blame] | 1250 | sti_rom_address = F_EXTEND(fb->sti->regions_phys[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1251 | else |
Helge Deller | 5d6d164 | 2006-01-10 20:48:03 -0500 | [diff] [blame] | 1252 | sti_rom_address = F_EXTEND(fb->sti->regions_phys[1]); |
| 1253 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1254 | fb->deviceSpecificConfig = gsc_readl(sti_rom_address); |
| 1255 | if (IS_24_DEVICE(fb)) { |
| 1256 | if (bpp_pref == 8 || bpp_pref == 32) |
| 1257 | bpp = bpp_pref; |
| 1258 | else |
| 1259 | bpp = 32; |
| 1260 | } else |
| 1261 | bpp = 8; |
| 1262 | READ_WORD(fb, REG_15); |
| 1263 | SETUP_HW(fb); |
| 1264 | break; |
| 1265 | case CRT_ID_VISUALIZE_EG: |
| 1266 | case S9000_ID_ARTIST: /* Artist */ |
| 1267 | break; |
| 1268 | default: |
| 1269 | #ifdef FALLBACK_TO_1BPP |
| 1270 | printk(KERN_WARNING |
| 1271 | "stifb: Unsupported graphics card (id=0x%08x) " |
| 1272 | "- now trying 1bpp mode instead\n", |
| 1273 | fb->id); |
| 1274 | bpp = 1; /* default to 1 bpp */ |
| 1275 | break; |
| 1276 | #else |
| 1277 | printk(KERN_WARNING |
| 1278 | "stifb: Unsupported graphics card (id=0x%08x) " |
| 1279 | "- skipping.\n", |
| 1280 | fb->id); |
| 1281 | goto out_err0; |
| 1282 | #endif |
| 1283 | } |
| 1284 | |
| 1285 | |
| 1286 | /* get framebuffer physical and virtual base addr & len (64bit ready) */ |
| 1287 | fix->smem_start = F_EXTEND(fb->sti->regions_phys[1]); |
| 1288 | fix->smem_len = fb->sti->regions[1].region_desc.length * 4096; |
| 1289 | |
| 1290 | fix->line_length = (fb->sti->glob_cfg->total_x * bpp) / 8; |
| 1291 | if (!fix->line_length) |
| 1292 | fix->line_length = 2048; /* default */ |
| 1293 | |
| 1294 | /* limit fbsize to max visible screen size */ |
| 1295 | if (fix->smem_len > yres*fix->line_length) |
| 1296 | fix->smem_len = yres*fix->line_length; |
| 1297 | |
| 1298 | fix->accel = FB_ACCEL_NONE; |
| 1299 | |
| 1300 | switch (bpp) { |
| 1301 | case 1: |
| 1302 | fix->type = FB_TYPE_PLANES; /* well, sort of */ |
| 1303 | fix->visual = FB_VISUAL_MONO10; |
| 1304 | var->red.length = var->green.length = var->blue.length = 1; |
| 1305 | break; |
| 1306 | case 8: |
| 1307 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 1308 | fix->visual = FB_VISUAL_PSEUDOCOLOR; |
| 1309 | var->red.length = var->green.length = var->blue.length = 8; |
| 1310 | break; |
| 1311 | case 32: |
| 1312 | fix->type = FB_TYPE_PACKED_PIXELS; |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 1313 | fix->visual = FB_VISUAL_DIRECTCOLOR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | var->red.length = var->green.length = var->blue.length = var->transp.length = 8; |
| 1315 | var->blue.offset = 0; |
| 1316 | var->green.offset = 8; |
| 1317 | var->red.offset = 16; |
| 1318 | var->transp.offset = 24; |
| 1319 | break; |
| 1320 | default: |
| 1321 | break; |
| 1322 | } |
| 1323 | |
| 1324 | var->xres = var->xres_virtual = xres; |
| 1325 | var->yres = var->yres_virtual = yres; |
| 1326 | var->bits_per_pixel = bpp; |
| 1327 | |
| 1328 | strcpy(fix->id, "stifb"); |
| 1329 | info->fbops = &stifb_ops; |
| 1330 | info->screen_base = (void*) REGION_BASE(fb,1); |
| 1331 | info->flags = FBINFO_DEFAULT; |
| 1332 | info->pseudo_palette = &fb->pseudo_palette; |
| 1333 | |
| 1334 | /* This has to been done !!! */ |
Helge Deller | daaeb6f | 2006-01-10 20:48:04 -0500 | [diff] [blame] | 1335 | fb_alloc_cmap(&info->cmap, NR_PALETTE, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | stifb_init_display(fb); |
| 1337 | |
| 1338 | if (!request_mem_region(fix->smem_start, fix->smem_len, "stifb fb")) { |
| 1339 | printk(KERN_ERR "stifb: cannot reserve fb region 0x%04lx-0x%04lx\n", |
| 1340 | fix->smem_start, fix->smem_start+fix->smem_len); |
| 1341 | goto out_err1; |
| 1342 | } |
| 1343 | |
| 1344 | if (!request_mem_region(fix->mmio_start, fix->mmio_len, "stifb mmio")) { |
| 1345 | printk(KERN_ERR "stifb: cannot reserve sti mmio region 0x%04lx-0x%04lx\n", |
| 1346 | fix->mmio_start, fix->mmio_start+fix->mmio_len); |
| 1347 | goto out_err2; |
| 1348 | } |
| 1349 | |
| 1350 | if (register_framebuffer(&fb->info) < 0) |
| 1351 | goto out_err3; |
| 1352 | |
| 1353 | sti->info = info; /* save for unregister_framebuffer() */ |
| 1354 | |
| 1355 | printk(KERN_INFO |
| 1356 | "fb%d: %s %dx%d-%d frame buffer device, %s, id: %04x, mmio: 0x%04lx\n", |
| 1357 | fb->info.node, |
| 1358 | fix->id, |
| 1359 | var->xres, |
| 1360 | var->yres, |
| 1361 | var->bits_per_pixel, |
| 1362 | sti->outptr.dev_name, |
| 1363 | fb->id, |
| 1364 | fix->mmio_start); |
| 1365 | |
| 1366 | return 0; |
| 1367 | |
| 1368 | |
| 1369 | out_err3: |
| 1370 | release_mem_region(fix->mmio_start, fix->mmio_len); |
| 1371 | out_err2: |
| 1372 | release_mem_region(fix->smem_start, fix->smem_len); |
| 1373 | out_err1: |
| 1374 | fb_dealloc_cmap(&info->cmap); |
| 1375 | out_err0: |
| 1376 | kfree(fb); |
| 1377 | return -ENXIO; |
| 1378 | } |
| 1379 | |
| 1380 | static int stifb_disabled __initdata; |
| 1381 | |
| 1382 | int __init |
| 1383 | stifb_setup(char *options); |
| 1384 | |
| 1385 | int __init |
| 1386 | stifb_init(void) |
| 1387 | { |
| 1388 | struct sti_struct *sti; |
| 1389 | struct sti_struct *def_sti; |
| 1390 | int i; |
| 1391 | |
| 1392 | #ifndef MODULE |
| 1393 | char *option = NULL; |
| 1394 | |
| 1395 | if (fb_get_options("stifb", &option)) |
| 1396 | return -ENODEV; |
| 1397 | stifb_setup(option); |
| 1398 | #endif |
| 1399 | if (stifb_disabled) { |
| 1400 | printk(KERN_INFO "stifb: disabled by \"stifb=off\" kernel parameter\n"); |
| 1401 | return -ENXIO; |
| 1402 | } |
| 1403 | |
| 1404 | def_sti = sti_get_rom(0); |
| 1405 | if (def_sti) { |
| 1406 | for (i = 1; i <= MAX_STI_ROMS; i++) { |
| 1407 | sti = sti_get_rom(i); |
| 1408 | if (!sti) |
| 1409 | break; |
| 1410 | if (sti == def_sti) { |
| 1411 | stifb_init_fb(sti, stifb_bpp_pref[i - 1]); |
| 1412 | break; |
| 1413 | } |
| 1414 | } |
| 1415 | } |
| 1416 | |
| 1417 | for (i = 1; i <= MAX_STI_ROMS; i++) { |
| 1418 | sti = sti_get_rom(i); |
| 1419 | if (!sti) |
| 1420 | break; |
| 1421 | if (sti == def_sti) |
| 1422 | continue; |
| 1423 | stifb_init_fb(sti, stifb_bpp_pref[i - 1]); |
| 1424 | } |
| 1425 | return 0; |
| 1426 | } |
| 1427 | |
| 1428 | /* |
| 1429 | * Cleanup |
| 1430 | */ |
| 1431 | |
| 1432 | static void __exit |
| 1433 | stifb_cleanup(void) |
| 1434 | { |
| 1435 | struct sti_struct *sti; |
| 1436 | int i; |
| 1437 | |
| 1438 | for (i = 1; i <= MAX_STI_ROMS; i++) { |
| 1439 | sti = sti_get_rom(i); |
| 1440 | if (!sti) |
| 1441 | break; |
| 1442 | if (sti->info) { |
| 1443 | struct fb_info *info = sti->info; |
| 1444 | unregister_framebuffer(sti->info); |
| 1445 | release_mem_region(info->fix.mmio_start, info->fix.mmio_len); |
| 1446 | release_mem_region(info->fix.smem_start, info->fix.smem_len); |
| 1447 | fb_dealloc_cmap(&info->cmap); |
| 1448 | kfree(info); |
| 1449 | } |
| 1450 | sti->info = NULL; |
| 1451 | } |
| 1452 | } |
| 1453 | |
| 1454 | int __init |
| 1455 | stifb_setup(char *options) |
| 1456 | { |
| 1457 | int i; |
| 1458 | |
| 1459 | if (!options || !*options) |
| 1460 | return 0; |
| 1461 | |
| 1462 | if (strncmp(options, "off", 3) == 0) { |
| 1463 | stifb_disabled = 1; |
| 1464 | options += 3; |
| 1465 | } |
| 1466 | |
| 1467 | if (strncmp(options, "bpp", 3) == 0) { |
| 1468 | options += 3; |
| 1469 | for (i = 0; i < MAX_STI_ROMS; i++) { |
| 1470 | if (*options++ != ':') |
| 1471 | break; |
| 1472 | stifb_bpp_pref[i] = simple_strtoul(options, &options, 10); |
| 1473 | } |
| 1474 | } |
| 1475 | return 0; |
| 1476 | } |
| 1477 | |
| 1478 | __setup("stifb=", stifb_setup); |
| 1479 | |
| 1480 | module_init(stifb_init); |
| 1481 | module_exit(stifb_cleanup); |
| 1482 | |
| 1483 | MODULE_AUTHOR("Helge Deller <deller@gmx.de>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>"); |
| 1484 | MODULE_DESCRIPTION("Framebuffer driver for HP's NGLE series graphics cards in HP PARISC machines"); |
| 1485 | MODULE_LICENSE("GPL v2"); |