Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/video/amifb.c -- Amiga builtin chipset frame buffer device |
| 3 | * |
| 4 | * Copyright (C) 1995-2003 Geert Uytterhoeven |
| 5 | * |
| 6 | * with work by Roman Zippel |
| 7 | * |
| 8 | * |
| 9 | * This file is based on the Atari frame buffer device (atafb.c): |
| 10 | * |
| 11 | * Copyright (C) 1994 Martin Schaller |
| 12 | * Roman Hodek |
| 13 | * |
| 14 | * with work by Andreas Schwab |
| 15 | * Guenther Kelleter |
| 16 | * |
| 17 | * and on the original Amiga console driver (amicon.c): |
| 18 | * |
| 19 | * Copyright (C) 1993 Hamish Macdonald |
| 20 | * Greg Harp |
| 21 | * Copyright (C) 1994 David Carter [carter@compsci.bristol.ac.uk] |
| 22 | * |
| 23 | * with work by William Rucklidge (wjr@cs.cornell.edu) |
| 24 | * Geert Uytterhoeven |
| 25 | * Jes Sorensen (jds@kom.auc.dk) |
| 26 | * |
| 27 | * |
| 28 | * History: |
| 29 | * |
| 30 | * - 24 Jul 96: Copper generates now vblank interrupt and |
| 31 | * VESA Power Saving Protocol is fully implemented |
| 32 | * - 14 Jul 96: Rework and hopefully last ECS bugs fixed |
| 33 | * - 7 Mar 96: Hardware sprite support by Roman Zippel |
| 34 | * - 18 Feb 96: OCS and ECS support by Roman Zippel |
| 35 | * Hardware functions completely rewritten |
| 36 | * - 2 Dec 95: AGA version by Geert Uytterhoeven |
| 37 | * |
| 38 | * This file is subject to the terms and conditions of the GNU General Public |
| 39 | * License. See the file COPYING in the main directory of this archive |
| 40 | * for more details. |
| 41 | */ |
| 42 | |
| 43 | #include <linux/module.h> |
| 44 | #include <linux/kernel.h> |
| 45 | #include <linux/errno.h> |
| 46 | #include <linux/string.h> |
| 47 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include <linux/slab.h> |
| 49 | #include <linux/delay.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #include <linux/interrupt.h> |
| 51 | #include <linux/fb.h> |
| 52 | #include <linux/init.h> |
| 53 | #include <linux/ioport.h> |
| 54 | |
| 55 | #include <asm/uaccess.h> |
| 56 | #include <asm/system.h> |
| 57 | #include <asm/irq.h> |
| 58 | #include <asm/amigahw.h> |
| 59 | #include <asm/amigaints.h> |
| 60 | #include <asm/setup.h> |
| 61 | |
| 62 | #include "c2p.h" |
| 63 | |
| 64 | |
| 65 | #define DEBUG |
| 66 | |
| 67 | #if !defined(CONFIG_FB_AMIGA_OCS) && !defined(CONFIG_FB_AMIGA_ECS) && !defined(CONFIG_FB_AMIGA_AGA) |
| 68 | #define CONFIG_FB_AMIGA_OCS /* define at least one fb driver, this will change later */ |
| 69 | #endif |
| 70 | |
| 71 | #if !defined(CONFIG_FB_AMIGA_OCS) |
| 72 | # define IS_OCS (0) |
| 73 | #elif defined(CONFIG_FB_AMIGA_ECS) || defined(CONFIG_FB_AMIGA_AGA) |
| 74 | # define IS_OCS (chipset == TAG_OCS) |
| 75 | #else |
| 76 | # define CONFIG_FB_AMIGA_OCS_ONLY |
| 77 | # define IS_OCS (1) |
| 78 | #endif |
| 79 | |
| 80 | #if !defined(CONFIG_FB_AMIGA_ECS) |
| 81 | # define IS_ECS (0) |
| 82 | #elif defined(CONFIG_FB_AMIGA_OCS) || defined(CONFIG_FB_AMIGA_AGA) |
| 83 | # define IS_ECS (chipset == TAG_ECS) |
| 84 | #else |
| 85 | # define CONFIG_FB_AMIGA_ECS_ONLY |
| 86 | # define IS_ECS (1) |
| 87 | #endif |
| 88 | |
| 89 | #if !defined(CONFIG_FB_AMIGA_AGA) |
| 90 | # define IS_AGA (0) |
| 91 | #elif defined(CONFIG_FB_AMIGA_OCS) || defined(CONFIG_FB_AMIGA_ECS) |
| 92 | # define IS_AGA (chipset == TAG_AGA) |
| 93 | #else |
| 94 | # define CONFIG_FB_AMIGA_AGA_ONLY |
| 95 | # define IS_AGA (1) |
| 96 | #endif |
| 97 | |
| 98 | #ifdef DEBUG |
| 99 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args) |
| 100 | #else |
| 101 | # define DPRINTK(fmt, args...) |
| 102 | #endif |
| 103 | |
| 104 | /******************************************************************************* |
| 105 | |
| 106 | |
| 107 | Generic video timings |
| 108 | --------------------- |
| 109 | |
| 110 | Timings used by the frame buffer interface: |
| 111 | |
| 112 | +----------+---------------------------------------------+----------+-------+ |
| 113 | | | ^ | | | |
| 114 | | | |upper_margin | | | |
| 115 | | | ¥ | | | |
| 116 | +----------###############################################----------+-------+ |
| 117 | | # ^ # | | |
| 118 | | # | # | | |
| 119 | | # | # | | |
| 120 | | # | # | | |
| 121 | | left # | # right | hsync | |
| 122 | | margin # | xres # margin | len | |
| 123 | |<-------->#<---------------+--------------------------->#<-------->|<----->| |
| 124 | | # | # | | |
| 125 | | # | # | | |
| 126 | | # | # | | |
| 127 | | # |yres # | | |
| 128 | | # | # | | |
| 129 | | # | # | | |
| 130 | | # | # | | |
| 131 | | # | # | | |
| 132 | | # | # | | |
| 133 | | # | # | | |
| 134 | | # | # | | |
| 135 | | # | # | | |
| 136 | | # ¥ # | | |
| 137 | +----------###############################################----------+-------+ |
| 138 | | | ^ | | | |
| 139 | | | |lower_margin | | | |
| 140 | | | ¥ | | | |
| 141 | +----------+---------------------------------------------+----------+-------+ |
| 142 | | | ^ | | | |
| 143 | | | |vsync_len | | | |
| 144 | | | ¥ | | | |
| 145 | +----------+---------------------------------------------+----------+-------+ |
| 146 | |
| 147 | |
| 148 | Amiga video timings |
| 149 | ------------------- |
| 150 | |
| 151 | The Amiga native chipsets uses another timing scheme: |
| 152 | |
| 153 | - hsstrt: Start of horizontal synchronization pulse |
| 154 | - hsstop: End of horizontal synchronization pulse |
| 155 | - htotal: Last value on the line (i.e. line length = htotal+1) |
| 156 | - vsstrt: Start of vertical synchronization pulse |
| 157 | - vsstop: End of vertical synchronization pulse |
| 158 | - vtotal: Last line value (i.e. number of lines = vtotal+1) |
| 159 | - hcenter: Start of vertical retrace for interlace |
| 160 | |
| 161 | You can specify the blanking timings independently. Currently I just set |
| 162 | them equal to the respective synchronization values: |
| 163 | |
| 164 | - hbstrt: Start of horizontal blank |
| 165 | - hbstop: End of horizontal blank |
| 166 | - vbstrt: Start of vertical blank |
| 167 | - vbstop: End of vertical blank |
| 168 | |
| 169 | Horizontal values are in color clock cycles (280 ns), vertical values are in |
| 170 | scanlines. |
| 171 | |
| 172 | (0, 0) is somewhere in the upper-left corner :-) |
| 173 | |
| 174 | |
| 175 | Amiga visible window definitions |
| 176 | -------------------------------- |
| 177 | |
| 178 | Currently I only have values for AGA, SHRES (28 MHz dotclock). Feel free to |
| 179 | make corrections and/or additions. |
| 180 | |
| 181 | Within the above synchronization specifications, the visible window is |
| 182 | defined by the following parameters (actual register resolutions may be |
| 183 | different; all horizontal values are normalized with respect to the pixel |
| 184 | clock): |
| 185 | |
| 186 | - diwstrt_h: Horizontal start of the visible window |
| 187 | - diwstop_h: Horizontal stop+1(*) of the visible window |
| 188 | - diwstrt_v: Vertical start of the visible window |
| 189 | - diwstop_v: Vertical stop of the visible window |
| 190 | - ddfstrt: Horizontal start of display DMA |
| 191 | - ddfstop: Horizontal stop of display DMA |
| 192 | - hscroll: Horizontal display output delay |
| 193 | |
| 194 | Sprite positioning: |
| 195 | |
| 196 | - sprstrt_h: Horizontal start-4 of sprite |
| 197 | - sprstrt_v: Vertical start of sprite |
| 198 | |
| 199 | (*) Even Commodore did it wrong in the AGA monitor drivers by not adding 1. |
| 200 | |
| 201 | Horizontal values are in dotclock cycles (35 ns), vertical values are in |
| 202 | scanlines. |
| 203 | |
| 204 | (0, 0) is somewhere in the upper-left corner :-) |
| 205 | |
| 206 | |
| 207 | Dependencies (AGA, SHRES (35 ns dotclock)) |
| 208 | ------------------------------------------- |
| 209 | |
| 210 | Since there are much more parameters for the Amiga display than for the |
| 211 | frame buffer interface, there must be some dependencies among the Amiga |
| 212 | display parameters. Here's what I found out: |
| 213 | |
| 214 | - ddfstrt and ddfstop are best aligned to 64 pixels. |
| 215 | - the chipset needs 64+4 horizontal pixels after the DMA start before the |
| 216 | first pixel is output, so diwstrt_h = ddfstrt+64+4 if you want to |
| 217 | display the first pixel on the line too. Increase diwstrt_h for virtual |
| 218 | screen panning. |
| 219 | - the display DMA always fetches 64 pixels at a time (fmode = 3). |
| 220 | - ddfstop is ddfstrt+#pixels-64. |
| 221 | - diwstop_h = diwstrt_h+xres+1. Because of the additional 1 this can be 1 |
| 222 | more than htotal. |
| 223 | - hscroll simply adds a delay to the display output. Smooth horizontal |
| 224 | panning needs an extra 64 pixels on the left to prefetch the pixels that |
| 225 | `fall off' on the left. |
| 226 | - if ddfstrt < 192, the sprite DMA cycles are all stolen by the bitplane |
| 227 | DMA, so it's best to make the DMA start as late as possible. |
| 228 | - you really don't want to make ddfstrt < 128, since this will steal DMA |
| 229 | cycles from the other DMA channels (audio, floppy and Chip RAM refresh). |
| 230 | - I make diwstop_h and diwstop_v as large as possible. |
| 231 | |
| 232 | General dependencies |
| 233 | -------------------- |
| 234 | |
| 235 | - all values are SHRES pixel (35ns) |
| 236 | |
| 237 | table 1:fetchstart table 2:prefetch table 3:fetchsize |
| 238 | ------------------ ---------------- ----------------- |
| 239 | Pixclock # SHRES|HIRES|LORES # SHRES|HIRES|LORES # SHRES|HIRES|LORES |
| 240 | -------------#------+-----+------#------+-----+------#------+-----+------ |
| 241 | Bus width 1x # 16 | 32 | 64 # 16 | 32 | 64 # 64 | 64 | 64 |
| 242 | Bus width 2x # 32 | 64 | 128 # 32 | 64 | 64 # 64 | 64 | 128 |
| 243 | Bus width 4x # 64 | 128 | 256 # 64 | 64 | 64 # 64 | 128 | 256 |
| 244 | |
| 245 | - chipset needs 4 pixels before the first pixel is output |
| 246 | - ddfstrt must be aligned to fetchstart (table 1) |
| 247 | - chipset needs also prefetch (table 2) to get first pixel data, so |
| 248 | ddfstrt = ((diwstrt_h-4) & -fetchstart) - prefetch |
| 249 | - for horizontal panning decrease diwstrt_h |
| 250 | - the length of a fetchline must be aligned to fetchsize (table 3) |
| 251 | - if fetchstart is smaller than fetchsize, then ddfstrt can a little bit |
| 252 | moved to optimize use of dma (useful for OCS/ECS overscan displays) |
| 253 | - ddfstop is ddfstrt+ddfsize-fetchsize |
| 254 | - If C= didn't change anything for AGA, then at following positions the |
| 255 | dma bus is already used: |
| 256 | ddfstrt < 48 -> memory refresh |
| 257 | < 96 -> disk dma |
| 258 | < 160 -> audio dma |
| 259 | < 192 -> sprite 0 dma |
| 260 | < 416 -> sprite dma (32 per sprite) |
| 261 | - in accordance with the hardware reference manual a hardware stop is at |
| 262 | 192, but AGA (ECS?) can go below this. |
| 263 | |
| 264 | DMA priorities |
| 265 | -------------- |
| 266 | |
| 267 | Since there are limits on the earliest start value for display DMA and the |
| 268 | display of sprites, I use the following policy on horizontal panning and |
| 269 | the hardware cursor: |
| 270 | |
| 271 | - if you want to start display DMA too early, you lose the ability to |
| 272 | do smooth horizontal panning (xpanstep 1 -> 64). |
| 273 | - if you want to go even further, you lose the hardware cursor too. |
| 274 | |
| 275 | IMHO a hardware cursor is more important for X than horizontal scrolling, |
| 276 | so that's my motivation. |
| 277 | |
| 278 | |
| 279 | Implementation |
| 280 | -------------- |
| 281 | |
| 282 | ami_decode_var() converts the frame buffer values to the Amiga values. It's |
| 283 | just a `straightforward' implementation of the above rules. |
| 284 | |
| 285 | |
| 286 | Standard VGA timings |
| 287 | -------------------- |
| 288 | |
| 289 | xres yres left right upper lower hsync vsync |
| 290 | ---- ---- ---- ----- ----- ----- ----- ----- |
| 291 | 80x25 720 400 27 45 35 12 108 2 |
| 292 | 80x30 720 480 27 45 30 9 108 2 |
| 293 | |
| 294 | These were taken from a XFree86 configuration file, recalculated for a 28 MHz |
| 295 | dotclock (Amigas don't have a 25 MHz dotclock) and converted to frame buffer |
| 296 | generic timings. |
| 297 | |
| 298 | As a comparison, graphics/monitor.h suggests the following: |
| 299 | |
| 300 | xres yres left right upper lower hsync vsync |
| 301 | ---- ---- ---- ----- ----- ----- ----- ----- |
| 302 | |
| 303 | VGA 640 480 52 112 24 19 112 - 2 + |
| 304 | VGA70 640 400 52 112 27 21 112 - 2 - |
| 305 | |
| 306 | |
| 307 | Sync polarities |
| 308 | --------------- |
| 309 | |
| 310 | VSYNC HSYNC Vertical size Vertical total |
| 311 | ----- ----- ------------- -------------- |
| 312 | + + Reserved Reserved |
| 313 | + - 400 414 |
| 314 | - + 350 362 |
| 315 | - - 480 496 |
| 316 | |
| 317 | Source: CL-GD542X Technical Reference Manual, Cirrus Logic, Oct 1992 |
| 318 | |
| 319 | |
| 320 | Broadcast video timings |
| 321 | ----------------------- |
| 322 | |
| 323 | According to the CCIR and RETMA specifications, we have the following values: |
| 324 | |
| 325 | CCIR -> PAL |
| 326 | ----------- |
| 327 | |
| 328 | - a scanline is 64 µs long, of which 52.48 µs are visible. This is about |
| 329 | 736 visible 70 ns pixels per line. |
| 330 | - we have 625 scanlines, of which 575 are visible (interlaced); after |
| 331 | rounding this becomes 576. |
| 332 | |
| 333 | RETMA -> NTSC |
| 334 | ------------- |
| 335 | |
| 336 | - a scanline is 63.5 µs long, of which 53.5 µs are visible. This is about |
| 337 | 736 visible 70 ns pixels per line. |
| 338 | - we have 525 scanlines, of which 485 are visible (interlaced); after |
| 339 | rounding this becomes 484. |
| 340 | |
| 341 | Thus if you want a PAL compatible display, you have to do the following: |
| 342 | |
| 343 | - set the FB_SYNC_BROADCAST flag to indicate that standard broadcast |
| 344 | timings are to be used. |
| 345 | - make sure upper_margin+yres+lower_margin+vsync_len = 625 for an |
| 346 | interlaced, 312 for a non-interlaced and 156 for a doublescanned |
| 347 | display. |
| 348 | - make sure left_margin+xres+right_margin+hsync_len = 1816 for a SHRES, |
| 349 | 908 for a HIRES and 454 for a LORES display. |
| 350 | - the left visible part begins at 360 (SHRES; HIRES:180, LORES:90), |
| 351 | left_margin+2*hsync_len must be greater or equal. |
| 352 | - the upper visible part begins at 48 (interlaced; non-interlaced:24, |
| 353 | doublescanned:12), upper_margin+2*vsync_len must be greater or equal. |
| 354 | - ami_encode_var() calculates margins with a hsync of 5320 ns and a vsync |
| 355 | of 4 scanlines |
| 356 | |
| 357 | The settings for a NTSC compatible display are straightforward. |
| 358 | |
| 359 | Note that in a strict sense the PAL and NTSC standards only define the |
| 360 | encoding of the color part (chrominance) of the video signal and don't say |
| 361 | anything about horizontal/vertical synchronization nor refresh rates. |
| 362 | |
| 363 | |
| 364 | -- Geert -- |
| 365 | |
| 366 | *******************************************************************************/ |
| 367 | |
| 368 | |
| 369 | /* |
| 370 | * Custom Chipset Definitions |
| 371 | */ |
| 372 | |
| 373 | #define CUSTOM_OFS(fld) ((long)&((struct CUSTOM*)0)->fld) |
| 374 | |
| 375 | /* |
| 376 | * BPLCON0 -- Bitplane Control Register 0 |
| 377 | */ |
| 378 | |
| 379 | #define BPC0_HIRES (0x8000) |
| 380 | #define BPC0_BPU2 (0x4000) /* Bit plane used count */ |
| 381 | #define BPC0_BPU1 (0x2000) |
| 382 | #define BPC0_BPU0 (0x1000) |
| 383 | #define BPC0_HAM (0x0800) /* HAM mode */ |
| 384 | #define BPC0_DPF (0x0400) /* Double playfield */ |
| 385 | #define BPC0_COLOR (0x0200) /* Enable colorburst */ |
| 386 | #define BPC0_GAUD (0x0100) /* Genlock audio enable */ |
| 387 | #define BPC0_UHRES (0x0080) /* Ultrahi res enable */ |
| 388 | #define BPC0_SHRES (0x0040) /* Super hi res mode */ |
| 389 | #define BPC0_BYPASS (0x0020) /* Bypass LUT - AGA */ |
| 390 | #define BPC0_BPU3 (0x0010) /* AGA */ |
| 391 | #define BPC0_LPEN (0x0008) /* Light pen enable */ |
| 392 | #define BPC0_LACE (0x0004) /* Interlace */ |
| 393 | #define BPC0_ERSY (0x0002) /* External resync */ |
| 394 | #define BPC0_ECSENA (0x0001) /* ECS enable */ |
| 395 | |
| 396 | /* |
| 397 | * BPLCON2 -- Bitplane Control Register 2 |
| 398 | */ |
| 399 | |
| 400 | #define BPC2_ZDBPSEL2 (0x4000) /* Bitplane to be used for ZD - AGA */ |
| 401 | #define BPC2_ZDBPSEL1 (0x2000) |
| 402 | #define BPC2_ZDBPSEL0 (0x1000) |
| 403 | #define BPC2_ZDBPEN (0x0800) /* Enable ZD with ZDBPSELx - AGA */ |
| 404 | #define BPC2_ZDCTEN (0x0400) /* Enable ZD with palette bit #31 - AGA */ |
| 405 | #define BPC2_KILLEHB (0x0200) /* Kill EHB mode - AGA */ |
| 406 | #define BPC2_RDRAM (0x0100) /* Color table accesses read, not write - AGA */ |
| 407 | #define BPC2_SOGEN (0x0080) /* SOG output pin high - AGA */ |
| 408 | #define BPC2_PF2PRI (0x0040) /* PF2 priority over PF1 */ |
| 409 | #define BPC2_PF2P2 (0x0020) /* PF2 priority wrt sprites */ |
| 410 | #define BPC2_PF2P1 (0x0010) |
| 411 | #define BPC2_PF2P0 (0x0008) |
| 412 | #define BPC2_PF1P2 (0x0004) /* ditto PF1 */ |
| 413 | #define BPC2_PF1P1 (0x0002) |
| 414 | #define BPC2_PF1P0 (0x0001) |
| 415 | |
| 416 | /* |
| 417 | * BPLCON3 -- Bitplane Control Register 3 (AGA) |
| 418 | */ |
| 419 | |
| 420 | #define BPC3_BANK2 (0x8000) /* Bits to select color register bank */ |
| 421 | #define BPC3_BANK1 (0x4000) |
| 422 | #define BPC3_BANK0 (0x2000) |
| 423 | #define BPC3_PF2OF2 (0x1000) /* Bits for color table offset when PF2 */ |
| 424 | #define BPC3_PF2OF1 (0x0800) |
| 425 | #define BPC3_PF2OF0 (0x0400) |
| 426 | #define BPC3_LOCT (0x0200) /* Color register writes go to low bits */ |
| 427 | #define BPC3_SPRES1 (0x0080) /* Sprite resolution bits */ |
| 428 | #define BPC3_SPRES0 (0x0040) |
| 429 | #define BPC3_BRDRBLNK (0x0020) /* Border blanked? */ |
| 430 | #define BPC3_BRDRTRAN (0x0010) /* Border transparent? */ |
| 431 | #define BPC3_ZDCLKEN (0x0004) /* ZD pin is 14 MHz (HIRES) clock output */ |
| 432 | #define BPC3_BRDRSPRT (0x0002) /* Sprites in border? */ |
| 433 | #define BPC3_EXTBLKEN (0x0001) /* BLANK programmable */ |
| 434 | |
| 435 | /* |
| 436 | * BPLCON4 -- Bitplane Control Register 4 (AGA) |
| 437 | */ |
| 438 | |
| 439 | #define BPC4_BPLAM7 (0x8000) /* bitplane color XOR field */ |
| 440 | #define BPC4_BPLAM6 (0x4000) |
| 441 | #define BPC4_BPLAM5 (0x2000) |
| 442 | #define BPC4_BPLAM4 (0x1000) |
| 443 | #define BPC4_BPLAM3 (0x0800) |
| 444 | #define BPC4_BPLAM2 (0x0400) |
| 445 | #define BPC4_BPLAM1 (0x0200) |
| 446 | #define BPC4_BPLAM0 (0x0100) |
| 447 | #define BPC4_ESPRM7 (0x0080) /* 4 high bits for even sprite colors */ |
| 448 | #define BPC4_ESPRM6 (0x0040) |
| 449 | #define BPC4_ESPRM5 (0x0020) |
| 450 | #define BPC4_ESPRM4 (0x0010) |
| 451 | #define BPC4_OSPRM7 (0x0008) /* 4 high bits for odd sprite colors */ |
| 452 | #define BPC4_OSPRM6 (0x0004) |
| 453 | #define BPC4_OSPRM5 (0x0002) |
| 454 | #define BPC4_OSPRM4 (0x0001) |
| 455 | |
| 456 | /* |
| 457 | * BEAMCON0 -- Beam Control Register |
| 458 | */ |
| 459 | |
| 460 | #define BMC0_HARDDIS (0x4000) /* Disable hardware limits */ |
| 461 | #define BMC0_LPENDIS (0x2000) /* Disable light pen latch */ |
| 462 | #define BMC0_VARVBEN (0x1000) /* Enable variable vertical blank */ |
| 463 | #define BMC0_LOLDIS (0x0800) /* Disable long/short line toggle */ |
| 464 | #define BMC0_CSCBEN (0x0400) /* Composite sync/blank */ |
| 465 | #define BMC0_VARVSYEN (0x0200) /* Enable variable vertical sync */ |
| 466 | #define BMC0_VARHSYEN (0x0100) /* Enable variable horizontal sync */ |
| 467 | #define BMC0_VARBEAMEN (0x0080) /* Enable variable beam counters */ |
| 468 | #define BMC0_DUAL (0x0040) /* Enable alternate horizontal beam counter */ |
| 469 | #define BMC0_PAL (0x0020) /* Set decodes for PAL */ |
| 470 | #define BMC0_VARCSYEN (0x0010) /* Enable variable composite sync */ |
| 471 | #define BMC0_BLANKEN (0x0008) /* Blank enable (no longer used on AGA) */ |
| 472 | #define BMC0_CSYTRUE (0x0004) /* CSY polarity */ |
| 473 | #define BMC0_VSYTRUE (0x0002) /* VSY polarity */ |
| 474 | #define BMC0_HSYTRUE (0x0001) /* HSY polarity */ |
| 475 | |
| 476 | |
| 477 | /* |
| 478 | * FMODE -- Fetch Mode Control Register (AGA) |
| 479 | */ |
| 480 | |
| 481 | #define FMODE_SSCAN2 (0x8000) /* Sprite scan-doubling */ |
| 482 | #define FMODE_BSCAN2 (0x4000) /* Use PF2 modulus every other line */ |
| 483 | #define FMODE_SPAGEM (0x0008) /* Sprite page mode */ |
| 484 | #define FMODE_SPR32 (0x0004) /* Sprite 32 bit fetch */ |
| 485 | #define FMODE_BPAGEM (0x0002) /* Bitplane page mode */ |
| 486 | #define FMODE_BPL32 (0x0001) /* Bitplane 32 bit fetch */ |
| 487 | |
| 488 | /* |
| 489 | * Tags used to indicate a specific Pixel Clock |
| 490 | * |
| 491 | * clk_shift is the shift value to get the timings in 35 ns units |
| 492 | */ |
| 493 | |
| 494 | enum { TAG_SHRES, TAG_HIRES, TAG_LORES }; |
| 495 | |
| 496 | /* |
| 497 | * Tags used to indicate the specific chipset |
| 498 | */ |
| 499 | |
| 500 | enum { TAG_OCS, TAG_ECS, TAG_AGA }; |
| 501 | |
| 502 | /* |
| 503 | * Tags used to indicate the memory bandwidth |
| 504 | */ |
| 505 | |
| 506 | enum { TAG_FMODE_1, TAG_FMODE_2, TAG_FMODE_4 }; |
| 507 | |
| 508 | |
| 509 | /* |
| 510 | * Clock Definitions, Maximum Display Depth |
| 511 | * |
| 512 | * These depend on the E-Clock or the Chipset, so they are filled in |
| 513 | * dynamically |
| 514 | */ |
| 515 | |
| 516 | static u_long pixclock[3]; /* SHRES/HIRES/LORES: index = clk_shift */ |
| 517 | static u_short maxdepth[3]; /* SHRES/HIRES/LORES: index = clk_shift */ |
| 518 | static u_short maxfmode, chipset; |
| 519 | |
| 520 | |
| 521 | /* |
| 522 | * Broadcast Video Timings |
| 523 | * |
| 524 | * Horizontal values are in 35 ns (SHRES) units |
| 525 | * Vertical values are in interlaced scanlines |
| 526 | */ |
| 527 | |
| 528 | #define PAL_DIWSTRT_H (360) /* PAL Window Limits */ |
| 529 | #define PAL_DIWSTRT_V (48) |
| 530 | #define PAL_HTOTAL (1816) |
| 531 | #define PAL_VTOTAL (625) |
| 532 | |
| 533 | #define NTSC_DIWSTRT_H (360) /* NTSC Window Limits */ |
| 534 | #define NTSC_DIWSTRT_V (40) |
| 535 | #define NTSC_HTOTAL (1816) |
| 536 | #define NTSC_VTOTAL (525) |
| 537 | |
| 538 | |
| 539 | /* |
| 540 | * Various macros |
| 541 | */ |
| 542 | |
| 543 | #define up2(v) (((v)+1) & -2) |
| 544 | #define down2(v) ((v) & -2) |
| 545 | #define div2(v) ((v)>>1) |
| 546 | #define mod2(v) ((v) & 1) |
| 547 | |
| 548 | #define up4(v) (((v)+3) & -4) |
| 549 | #define down4(v) ((v) & -4) |
| 550 | #define mul4(v) ((v)<<2) |
| 551 | #define div4(v) ((v)>>2) |
| 552 | #define mod4(v) ((v) & 3) |
| 553 | |
| 554 | #define up8(v) (((v)+7) & -8) |
| 555 | #define down8(v) ((v) & -8) |
| 556 | #define div8(v) ((v)>>3) |
| 557 | #define mod8(v) ((v) & 7) |
| 558 | |
| 559 | #define up16(v) (((v)+15) & -16) |
| 560 | #define down16(v) ((v) & -16) |
| 561 | #define div16(v) ((v)>>4) |
| 562 | #define mod16(v) ((v) & 15) |
| 563 | |
| 564 | #define up32(v) (((v)+31) & -32) |
| 565 | #define down32(v) ((v) & -32) |
| 566 | #define div32(v) ((v)>>5) |
| 567 | #define mod32(v) ((v) & 31) |
| 568 | |
| 569 | #define up64(v) (((v)+63) & -64) |
| 570 | #define down64(v) ((v) & -64) |
| 571 | #define div64(v) ((v)>>6) |
| 572 | #define mod64(v) ((v) & 63) |
| 573 | |
| 574 | #define upx(x,v) (((v)+(x)-1) & -(x)) |
| 575 | #define downx(x,v) ((v) & -(x)) |
| 576 | #define modx(x,v) ((v) & ((x)-1)) |
| 577 | |
| 578 | /* if x1 is not a constant, this macro won't make real sense :-) */ |
| 579 | #ifdef __mc68000__ |
| 580 | #define DIVUL(x1, x2) ({int res; asm("divul %1,%2,%3": "=d" (res): \ |
| 581 | "d" (x2), "d" ((long)((x1)/0x100000000ULL)), "0" ((long)(x1))); res;}) |
| 582 | #else |
| 583 | /* We know a bit about the numbers, so we can do it this way */ |
| 584 | #define DIVUL(x1, x2) ((((long)((unsigned long long)x1 >> 8) / x2) << 8) + \ |
| 585 | ((((long)((unsigned long long)x1 >> 8) % x2) << 8) / x2)) |
| 586 | #endif |
| 587 | |
| 588 | #define highw(x) ((u_long)(x)>>16 & 0xffff) |
| 589 | #define loww(x) ((u_long)(x) & 0xffff) |
| 590 | |
Al Viro | b4290a2 | 2006-01-12 01:06:12 -0800 | [diff] [blame] | 591 | #define custom amiga_custom |
| 592 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | #define VBlankOn() custom.intena = IF_SETCLR|IF_COPER |
| 594 | #define VBlankOff() custom.intena = IF_COPER |
| 595 | |
| 596 | |
| 597 | /* |
| 598 | * Chip RAM we reserve for the Frame Buffer |
| 599 | * |
| 600 | * This defines the Maximum Virtual Screen Size |
| 601 | * (Setable per kernel options?) |
| 602 | */ |
| 603 | |
| 604 | #define VIDEOMEMSIZE_AGA_2M (1310720) /* AGA (2MB) : max 1280*1024*256 */ |
| 605 | #define VIDEOMEMSIZE_AGA_1M (786432) /* AGA (1MB) : max 1024*768*256 */ |
| 606 | #define VIDEOMEMSIZE_ECS_2M (655360) /* ECS (2MB) : max 1280*1024*16 */ |
| 607 | #define VIDEOMEMSIZE_ECS_1M (393216) /* ECS (1MB) : max 1024*768*16 */ |
| 608 | #define VIDEOMEMSIZE_OCS (262144) /* OCS : max ca. 800*600*16 */ |
| 609 | |
| 610 | #define SPRITEMEMSIZE (64*64/4) /* max 64*64*4 */ |
| 611 | #define DUMMYSPRITEMEMSIZE (8) |
| 612 | static u_long spritememory; |
| 613 | |
| 614 | #define CHIPRAM_SAFETY_LIMIT (16384) |
| 615 | |
| 616 | static u_long videomemory; |
| 617 | |
| 618 | /* |
| 619 | * This is the earliest allowed start of fetching display data. |
| 620 | * Only if you really want no hardware cursor and audio, |
| 621 | * set this to 128, but let it better at 192 |
| 622 | */ |
| 623 | |
| 624 | static u_long min_fstrt = 192; |
| 625 | |
| 626 | #define assignchunk(name, type, ptr, size) \ |
| 627 | { \ |
| 628 | (name) = (type)(ptr); \ |
| 629 | ptr += size; \ |
| 630 | } |
| 631 | |
| 632 | |
| 633 | /* |
| 634 | * Copper Instructions |
| 635 | */ |
| 636 | |
| 637 | #define CMOVE(val, reg) (CUSTOM_OFS(reg)<<16 | (val)) |
| 638 | #define CMOVE2(val, reg) ((CUSTOM_OFS(reg)+2)<<16 | (val)) |
| 639 | #define CWAIT(x, y) (((y) & 0x1fe)<<23 | ((x) & 0x7f0)<<13 | 0x0001fffe) |
| 640 | #define CEND (0xfffffffe) |
| 641 | |
| 642 | |
| 643 | typedef union { |
| 644 | u_long l; |
| 645 | u_short w[2]; |
| 646 | } copins; |
| 647 | |
| 648 | static struct copdisplay { |
| 649 | copins *init; |
| 650 | copins *wait; |
| 651 | copins *list[2][2]; |
| 652 | copins *rebuild[2]; |
| 653 | } copdisplay; |
| 654 | |
| 655 | static u_short currentcop = 0; |
| 656 | |
| 657 | /* |
| 658 | * Hardware Cursor API Definitions |
| 659 | * These used to be in linux/fb.h, but were preliminary and used by |
| 660 | * amifb only anyway |
| 661 | */ |
| 662 | |
| 663 | #define FBIOGET_FCURSORINFO 0x4607 |
| 664 | #define FBIOGET_VCURSORINFO 0x4608 |
| 665 | #define FBIOPUT_VCURSORINFO 0x4609 |
| 666 | #define FBIOGET_CURSORSTATE 0x460A |
| 667 | #define FBIOPUT_CURSORSTATE 0x460B |
| 668 | |
| 669 | |
| 670 | struct fb_fix_cursorinfo { |
| 671 | __u16 crsr_width; /* width and height of the cursor in */ |
| 672 | __u16 crsr_height; /* pixels (zero if no cursor) */ |
| 673 | __u16 crsr_xsize; /* cursor size in display pixels */ |
| 674 | __u16 crsr_ysize; |
| 675 | __u16 crsr_color1; /* colormap entry for cursor color1 */ |
| 676 | __u16 crsr_color2; /* colormap entry for cursor color2 */ |
| 677 | }; |
| 678 | |
| 679 | struct fb_var_cursorinfo { |
| 680 | __u16 width; |
| 681 | __u16 height; |
| 682 | __u16 xspot; |
| 683 | __u16 yspot; |
| 684 | __u8 data[1]; /* field with [height][width] */ |
| 685 | }; |
| 686 | |
| 687 | struct fb_cursorstate { |
| 688 | __s16 xoffset; |
| 689 | __s16 yoffset; |
| 690 | __u16 mode; |
| 691 | }; |
| 692 | |
| 693 | #define FB_CURSOR_OFF 0 |
| 694 | #define FB_CURSOR_ON 1 |
| 695 | #define FB_CURSOR_FLASH 2 |
| 696 | |
| 697 | |
| 698 | /* |
| 699 | * Hardware Cursor |
| 700 | */ |
| 701 | |
| 702 | static int cursorrate = 20; /* Number of frames/flash toggle */ |
| 703 | static u_short cursorstate = -1; |
| 704 | static u_short cursormode = FB_CURSOR_OFF; |
| 705 | |
| 706 | static u_short *lofsprite, *shfsprite, *dummysprite; |
| 707 | |
| 708 | /* |
| 709 | * Current Video Mode |
| 710 | */ |
| 711 | |
| 712 | static struct amifb_par { |
| 713 | |
| 714 | /* General Values */ |
| 715 | |
| 716 | int xres; /* vmode */ |
| 717 | int yres; /* vmode */ |
| 718 | int vxres; /* vmode */ |
| 719 | int vyres; /* vmode */ |
| 720 | int xoffset; /* vmode */ |
| 721 | int yoffset; /* vmode */ |
| 722 | u_short bpp; /* vmode */ |
| 723 | u_short clk_shift; /* vmode */ |
| 724 | u_short line_shift; /* vmode */ |
| 725 | int vmode; /* vmode */ |
| 726 | u_short diwstrt_h; /* vmode */ |
| 727 | u_short diwstop_h; /* vmode */ |
| 728 | u_short diwstrt_v; /* vmode */ |
| 729 | u_short diwstop_v; /* vmode */ |
| 730 | u_long next_line; /* modulo for next line */ |
| 731 | u_long next_plane; /* modulo for next plane */ |
| 732 | |
| 733 | /* Cursor Values */ |
| 734 | |
| 735 | struct { |
| 736 | short crsr_x; /* movecursor */ |
| 737 | short crsr_y; /* movecursor */ |
| 738 | short spot_x; |
| 739 | short spot_y; |
| 740 | u_short height; |
| 741 | u_short width; |
| 742 | u_short fmode; |
| 743 | } crsr; |
| 744 | |
| 745 | /* OCS Hardware Registers */ |
| 746 | |
| 747 | u_long bplpt0; /* vmode, pan (Note: physical address) */ |
| 748 | u_long bplpt0wrap; /* vmode, pan (Note: physical address) */ |
| 749 | u_short ddfstrt; |
| 750 | u_short ddfstop; |
| 751 | u_short bpl1mod; |
| 752 | u_short bpl2mod; |
| 753 | u_short bplcon0; /* vmode */ |
| 754 | u_short bplcon1; /* vmode */ |
| 755 | u_short htotal; /* vmode */ |
| 756 | u_short vtotal; /* vmode */ |
| 757 | |
| 758 | /* Additional ECS Hardware Registers */ |
| 759 | |
| 760 | u_short bplcon3; /* vmode */ |
| 761 | u_short beamcon0; /* vmode */ |
| 762 | u_short hsstrt; /* vmode */ |
| 763 | u_short hsstop; /* vmode */ |
| 764 | u_short hbstrt; /* vmode */ |
| 765 | u_short hbstop; /* vmode */ |
| 766 | u_short vsstrt; /* vmode */ |
| 767 | u_short vsstop; /* vmode */ |
| 768 | u_short vbstrt; /* vmode */ |
| 769 | u_short vbstop; /* vmode */ |
| 770 | u_short hcenter; /* vmode */ |
| 771 | |
| 772 | /* Additional AGA Hardware Registers */ |
| 773 | |
| 774 | u_short fmode; /* vmode */ |
| 775 | } currentpar; |
| 776 | |
| 777 | |
| 778 | static struct fb_info fb_info = { |
| 779 | .fix = { |
| 780 | .id = "Amiga ", |
| 781 | .visual = FB_VISUAL_PSEUDOCOLOR, |
| 782 | .accel = FB_ACCEL_AMIGABLITT |
| 783 | } |
| 784 | }; |
| 785 | |
| 786 | |
| 787 | /* |
| 788 | * Saved color entry 0 so we can restore it when unblanking |
| 789 | */ |
| 790 | |
| 791 | static u_char red0, green0, blue0; |
| 792 | |
| 793 | |
| 794 | #if defined(CONFIG_FB_AMIGA_ECS) |
| 795 | static u_short ecs_palette[32]; |
| 796 | #endif |
| 797 | |
| 798 | |
| 799 | /* |
| 800 | * Latches for Display Changes during VBlank |
| 801 | */ |
| 802 | |
| 803 | static u_short do_vmode_full = 0; /* Change the Video Mode */ |
| 804 | static u_short do_vmode_pan = 0; /* Update the Video Mode */ |
| 805 | static short do_blank = 0; /* (Un)Blank the Screen (±1) */ |
| 806 | static u_short do_cursor = 0; /* Move the Cursor */ |
| 807 | |
| 808 | |
| 809 | /* |
| 810 | * Various Flags |
| 811 | */ |
| 812 | |
| 813 | static u_short is_blanked = 0; /* Screen is Blanked */ |
| 814 | static u_short is_lace = 0; /* Screen is laced */ |
| 815 | |
| 816 | /* |
| 817 | * Predefined Video Modes |
| 818 | * |
| 819 | */ |
| 820 | |
| 821 | static struct fb_videomode ami_modedb[] __initdata = { |
| 822 | |
| 823 | /* |
| 824 | * AmigaOS Video Modes |
| 825 | * |
| 826 | * If you change these, make sure to update DEFMODE_* as well! |
| 827 | */ |
| 828 | |
| 829 | { |
| 830 | /* 640x200, 15 kHz, 60 Hz (NTSC) */ |
| 831 | "ntsc", 60, 640, 200, TAG_HIRES, 106, 86, 44, 16, 76, 2, |
| 832 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 833 | }, { |
| 834 | /* 640x400, 15 kHz, 60 Hz interlaced (NTSC) */ |
| 835 | "ntsc-lace", 60, 640, 400, TAG_HIRES, 106, 86, 88, 33, 76, 4, |
| 836 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED | FB_VMODE_YWRAP |
| 837 | }, { |
| 838 | /* 640x256, 15 kHz, 50 Hz (PAL) */ |
| 839 | "pal", 50, 640, 256, TAG_HIRES, 106, 86, 40, 14, 76, 2, |
| 840 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 841 | }, { |
| 842 | /* 640x512, 15 kHz, 50 Hz interlaced (PAL) */ |
| 843 | "pal-lace", 50, 640, 512, TAG_HIRES, 106, 86, 80, 29, 76, 4, |
| 844 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED | FB_VMODE_YWRAP |
| 845 | }, { |
| 846 | /* 640x480, 29 kHz, 57 Hz */ |
| 847 | "multiscan", 57, 640, 480, TAG_SHRES, 96, 112, 29, 8, 72, 8, |
| 848 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 849 | }, { |
| 850 | /* 640x960, 29 kHz, 57 Hz interlaced */ |
| 851 | "multiscan-lace", 57, 640, 960, TAG_SHRES, 96, 112, 58, 16, 72, 16, |
| 852 | 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP |
| 853 | }, { |
| 854 | /* 640x200, 15 kHz, 72 Hz */ |
| 855 | "euro36", 72, 640, 200, TAG_HIRES, 92, 124, 6, 6, 52, 5, |
| 856 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 857 | }, { |
| 858 | /* 640x400, 15 kHz, 72 Hz interlaced */ |
| 859 | "euro36-lace", 72, 640, 400, TAG_HIRES, 92, 124, 12, 12, 52, 10, |
| 860 | 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP |
| 861 | }, { |
| 862 | /* 640x400, 29 kHz, 68 Hz */ |
| 863 | "euro72", 68, 640, 400, TAG_SHRES, 164, 92, 9, 9, 80, 8, |
| 864 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 865 | }, { |
| 866 | /* 640x800, 29 kHz, 68 Hz interlaced */ |
| 867 | "euro72-lace", 68, 640, 800, TAG_SHRES, 164, 92, 18, 18, 80, 16, |
| 868 | 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP |
| 869 | }, { |
| 870 | /* 800x300, 23 kHz, 70 Hz */ |
| 871 | "super72", 70, 800, 300, TAG_SHRES, 212, 140, 10, 11, 80, 7, |
| 872 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 873 | }, { |
| 874 | /* 800x600, 23 kHz, 70 Hz interlaced */ |
| 875 | "super72-lace", 70, 800, 600, TAG_SHRES, 212, 140, 20, 22, 80, 14, |
| 876 | 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP |
| 877 | }, { |
| 878 | /* 640x200, 27 kHz, 57 Hz doublescan */ |
| 879 | "dblntsc", 57, 640, 200, TAG_SHRES, 196, 124, 18, 17, 80, 4, |
| 880 | 0, FB_VMODE_DOUBLE | FB_VMODE_YWRAP |
| 881 | }, { |
| 882 | /* 640x400, 27 kHz, 57 Hz */ |
| 883 | "dblntsc-ff", 57, 640, 400, TAG_SHRES, 196, 124, 36, 35, 80, 7, |
| 884 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 885 | }, { |
| 886 | /* 640x800, 27 kHz, 57 Hz interlaced */ |
| 887 | "dblntsc-lace", 57, 640, 800, TAG_SHRES, 196, 124, 72, 70, 80, 14, |
| 888 | 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP |
| 889 | }, { |
| 890 | /* 640x256, 27 kHz, 47 Hz doublescan */ |
| 891 | "dblpal", 47, 640, 256, TAG_SHRES, 196, 124, 14, 13, 80, 4, |
| 892 | 0, FB_VMODE_DOUBLE | FB_VMODE_YWRAP |
| 893 | }, { |
| 894 | /* 640x512, 27 kHz, 47 Hz */ |
| 895 | "dblpal-ff", 47, 640, 512, TAG_SHRES, 196, 124, 28, 27, 80, 7, |
| 896 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 897 | }, { |
| 898 | /* 640x1024, 27 kHz, 47 Hz interlaced */ |
| 899 | "dblpal-lace", 47, 640, 1024, TAG_SHRES, 196, 124, 56, 54, 80, 14, |
| 900 | 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP |
| 901 | }, |
| 902 | |
| 903 | /* |
| 904 | * VGA Video Modes |
| 905 | */ |
| 906 | |
| 907 | { |
| 908 | /* 640x480, 31 kHz, 60 Hz (VGA) */ |
| 909 | "vga", 60, 640, 480, TAG_SHRES, 64, 96, 30, 9, 112, 2, |
| 910 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 911 | }, { |
| 912 | /* 640x400, 31 kHz, 70 Hz (VGA) */ |
| 913 | "vga70", 70, 640, 400, TAG_SHRES, 64, 96, 35, 12, 112, 2, |
| 914 | FB_SYNC_VERT_HIGH_ACT | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 915 | }, |
| 916 | |
| 917 | #if 0 |
| 918 | |
| 919 | /* |
| 920 | * A2024 video modes |
| 921 | * These modes don't work yet because there's no A2024 driver. |
| 922 | */ |
| 923 | |
| 924 | { |
| 925 | /* 1024x800, 10 Hz */ |
| 926 | "a2024-10", 10, 1024, 800, TAG_HIRES, 0, 0, 0, 0, 0, 0, |
| 927 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 928 | }, { |
| 929 | /* 1024x800, 15 Hz */ |
| 930 | "a2024-15", 15, 1024, 800, TAG_HIRES, 0, 0, 0, 0, 0, 0, |
| 931 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 932 | } |
| 933 | #endif |
| 934 | }; |
| 935 | |
| 936 | #define NUM_TOTAL_MODES ARRAY_SIZE(ami_modedb) |
| 937 | |
| 938 | static char *mode_option __initdata = NULL; |
| 939 | static int round_down_bpp = 1; /* for mode probing */ |
| 940 | |
| 941 | /* |
| 942 | * Some default modes |
| 943 | */ |
| 944 | |
| 945 | |
| 946 | #define DEFMODE_PAL 2 /* "pal" for PAL OCS/ECS */ |
| 947 | #define DEFMODE_NTSC 0 /* "ntsc" for NTSC OCS/ECS */ |
| 948 | #define DEFMODE_AMBER_PAL 3 /* "pal-lace" for flicker fixed PAL (A3000) */ |
| 949 | #define DEFMODE_AMBER_NTSC 1 /* "ntsc-lace" for flicker fixed NTSC (A3000) */ |
| 950 | #define DEFMODE_AGA 19 /* "vga70" for AGA */ |
| 951 | |
| 952 | |
| 953 | static int amifb_ilbm = 0; /* interleaved or normal bitplanes */ |
| 954 | static int amifb_inverse = 0; |
| 955 | |
| 956 | |
| 957 | /* |
| 958 | * Macros for the conversion from real world values to hardware register |
| 959 | * values |
| 960 | * |
| 961 | * This helps us to keep our attention on the real stuff... |
| 962 | * |
| 963 | * Hardware limits for AGA: |
| 964 | * |
| 965 | * parameter min max step |
| 966 | * --------- --- ---- ---- |
| 967 | * diwstrt_h 0 2047 1 |
| 968 | * diwstrt_v 0 2047 1 |
| 969 | * diwstop_h 0 4095 1 |
| 970 | * diwstop_v 0 4095 1 |
| 971 | * |
| 972 | * ddfstrt 0 2032 16 |
| 973 | * ddfstop 0 2032 16 |
| 974 | * |
| 975 | * htotal 8 2048 8 |
| 976 | * hsstrt 0 2040 8 |
| 977 | * hsstop 0 2040 8 |
| 978 | * vtotal 1 4096 1 |
| 979 | * vsstrt 0 4095 1 |
| 980 | * vsstop 0 4095 1 |
| 981 | * hcenter 0 2040 8 |
| 982 | * |
| 983 | * hbstrt 0 2047 1 |
| 984 | * hbstop 0 2047 1 |
| 985 | * vbstrt 0 4095 1 |
| 986 | * vbstop 0 4095 1 |
| 987 | * |
| 988 | * Horizontal values are in 35 ns (SHRES) pixels |
| 989 | * Vertical values are in half scanlines |
| 990 | */ |
| 991 | |
| 992 | /* bplcon1 (smooth scrolling) */ |
| 993 | |
| 994 | #define hscroll2hw(hscroll) \ |
| 995 | (((hscroll)<<12 & 0x3000) | ((hscroll)<<8 & 0xc300) | \ |
| 996 | ((hscroll)<<4 & 0x0c00) | ((hscroll)<<2 & 0x00f0) | ((hscroll)>>2 & 0x000f)) |
| 997 | |
| 998 | /* diwstrt/diwstop/diwhigh (visible display window) */ |
| 999 | |
| 1000 | #define diwstrt2hw(diwstrt_h, diwstrt_v) \ |
| 1001 | (((diwstrt_v)<<7 & 0xff00) | ((diwstrt_h)>>2 & 0x00ff)) |
| 1002 | #define diwstop2hw(diwstop_h, diwstop_v) \ |
| 1003 | (((diwstop_v)<<7 & 0xff00) | ((diwstop_h)>>2 & 0x00ff)) |
| 1004 | #define diwhigh2hw(diwstrt_h, diwstrt_v, diwstop_h, diwstop_v) \ |
| 1005 | (((diwstop_h)<<3 & 0x2000) | ((diwstop_h)<<11 & 0x1800) | \ |
| 1006 | ((diwstop_v)>>1 & 0x0700) | ((diwstrt_h)>>5 & 0x0020) | \ |
| 1007 | ((diwstrt_h)<<3 & 0x0018) | ((diwstrt_v)>>9 & 0x0007)) |
| 1008 | |
| 1009 | /* ddfstrt/ddfstop (display DMA) */ |
| 1010 | |
| 1011 | #define ddfstrt2hw(ddfstrt) div8(ddfstrt) |
| 1012 | #define ddfstop2hw(ddfstop) div8(ddfstop) |
| 1013 | |
| 1014 | /* hsstrt/hsstop/htotal/vsstrt/vsstop/vtotal/hcenter (sync timings) */ |
| 1015 | |
| 1016 | #define hsstrt2hw(hsstrt) (div8(hsstrt)) |
| 1017 | #define hsstop2hw(hsstop) (div8(hsstop)) |
| 1018 | #define htotal2hw(htotal) (div8(htotal)-1) |
| 1019 | #define vsstrt2hw(vsstrt) (div2(vsstrt)) |
| 1020 | #define vsstop2hw(vsstop) (div2(vsstop)) |
| 1021 | #define vtotal2hw(vtotal) (div2(vtotal)-1) |
| 1022 | #define hcenter2hw(htotal) (div8(htotal)) |
| 1023 | |
| 1024 | /* hbstrt/hbstop/vbstrt/vbstop (blanking timings) */ |
| 1025 | |
| 1026 | #define hbstrt2hw(hbstrt) (((hbstrt)<<8 & 0x0700) | ((hbstrt)>>3 & 0x00ff)) |
| 1027 | #define hbstop2hw(hbstop) (((hbstop)<<8 & 0x0700) | ((hbstop)>>3 & 0x00ff)) |
| 1028 | #define vbstrt2hw(vbstrt) (div2(vbstrt)) |
| 1029 | #define vbstop2hw(vbstop) (div2(vbstop)) |
| 1030 | |
| 1031 | /* colour */ |
| 1032 | |
| 1033 | #define rgb2hw8_high(red, green, blue) \ |
| 1034 | (((red & 0xf0)<<4) | (green & 0xf0) | ((blue & 0xf0)>>4)) |
| 1035 | #define rgb2hw8_low(red, green, blue) \ |
| 1036 | (((red & 0x0f)<<8) | ((green & 0x0f)<<4) | (blue & 0x0f)) |
| 1037 | #define rgb2hw4(red, green, blue) \ |
| 1038 | (((red & 0xf0)<<4) | (green & 0xf0) | ((blue & 0xf0)>>4)) |
| 1039 | #define rgb2hw2(red, green, blue) \ |
| 1040 | (((red & 0xc0)<<4) | (green & 0xc0) | ((blue & 0xc0)>>4)) |
| 1041 | |
| 1042 | /* sprpos/sprctl (sprite positioning) */ |
| 1043 | |
| 1044 | #define spr2hw_pos(start_v, start_h) \ |
| 1045 | (((start_v)<<7&0xff00) | ((start_h)>>3&0x00ff)) |
| 1046 | #define spr2hw_ctl(start_v, start_h, stop_v) \ |
| 1047 | (((stop_v)<<7&0xff00) | ((start_v)>>4&0x0040) | ((stop_v)>>5&0x0020) | \ |
| 1048 | ((start_h)<<3&0x0018) | ((start_v)>>7&0x0004) | ((stop_v)>>8&0x0002) | \ |
| 1049 | ((start_h)>>2&0x0001)) |
| 1050 | |
| 1051 | /* get current vertical position of beam */ |
| 1052 | #define get_vbpos() ((u_short)((*(u_long volatile *)&custom.vposr >> 7) & 0xffe)) |
| 1053 | |
| 1054 | /* |
| 1055 | * Copper Initialisation List |
| 1056 | */ |
| 1057 | |
| 1058 | #define COPINITSIZE (sizeof(copins)*40) |
| 1059 | |
| 1060 | enum { |
| 1061 | cip_bplcon0 |
| 1062 | }; |
| 1063 | |
| 1064 | /* |
| 1065 | * Long Frame/Short Frame Copper List |
| 1066 | * Don't change the order, build_copper()/rebuild_copper() rely on this |
| 1067 | */ |
| 1068 | |
| 1069 | #define COPLISTSIZE (sizeof(copins)*64) |
| 1070 | |
| 1071 | enum { |
| 1072 | cop_wait, cop_bplcon0, |
| 1073 | cop_spr0ptrh, cop_spr0ptrl, |
| 1074 | cop_diwstrt, cop_diwstop, |
| 1075 | cop_diwhigh, |
| 1076 | }; |
| 1077 | |
| 1078 | /* |
| 1079 | * Pixel modes for Bitplanes and Sprites |
| 1080 | */ |
| 1081 | |
| 1082 | static u_short bplpixmode[3] = { |
| 1083 | BPC0_SHRES, /* 35 ns */ |
| 1084 | BPC0_HIRES, /* 70 ns */ |
| 1085 | 0 /* 140 ns */ |
| 1086 | }; |
| 1087 | |
| 1088 | static u_short sprpixmode[3] = { |
| 1089 | BPC3_SPRES1 | BPC3_SPRES0, /* 35 ns */ |
| 1090 | BPC3_SPRES1, /* 70 ns */ |
| 1091 | BPC3_SPRES0 /* 140 ns */ |
| 1092 | }; |
| 1093 | |
| 1094 | /* |
| 1095 | * Fetch modes for Bitplanes and Sprites |
| 1096 | */ |
| 1097 | |
| 1098 | static u_short bplfetchmode[3] = { |
| 1099 | 0, /* 1x */ |
| 1100 | FMODE_BPL32, /* 2x */ |
| 1101 | FMODE_BPAGEM | FMODE_BPL32 /* 4x */ |
| 1102 | }; |
| 1103 | |
| 1104 | static u_short sprfetchmode[3] = { |
| 1105 | 0, /* 1x */ |
| 1106 | FMODE_SPR32, /* 2x */ |
| 1107 | FMODE_SPAGEM | FMODE_SPR32 /* 4x */ |
| 1108 | }; |
| 1109 | |
| 1110 | |
| 1111 | /* |
| 1112 | * Interface used by the world |
| 1113 | */ |
| 1114 | |
| 1115 | int amifb_setup(char*); |
| 1116 | |
| 1117 | static int amifb_check_var(struct fb_var_screeninfo *var, |
| 1118 | struct fb_info *info); |
| 1119 | static int amifb_set_par(struct fb_info *info); |
| 1120 | static int amifb_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 1121 | unsigned blue, unsigned transp, |
| 1122 | struct fb_info *info); |
| 1123 | static int amifb_blank(int blank, struct fb_info *info); |
| 1124 | static int amifb_pan_display(struct fb_var_screeninfo *var, |
| 1125 | struct fb_info *info); |
| 1126 | static void amifb_fillrect(struct fb_info *info, |
| 1127 | const struct fb_fillrect *rect); |
| 1128 | static void amifb_copyarea(struct fb_info *info, |
| 1129 | const struct fb_copyarea *region); |
| 1130 | static void amifb_imageblit(struct fb_info *info, |
| 1131 | const struct fb_image *image); |
Christoph Hellwig | 67a6680 | 2006-01-14 13:21:25 -0800 | [diff] [blame] | 1132 | static int amifb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | |
| 1134 | |
| 1135 | /* |
| 1136 | * Interface to the low level console driver |
| 1137 | */ |
| 1138 | |
| 1139 | int amifb_init(void); |
| 1140 | static void amifb_deinit(void); |
| 1141 | |
| 1142 | /* |
| 1143 | * Internal routines |
| 1144 | */ |
| 1145 | |
| 1146 | static int flash_cursor(void); |
| 1147 | static irqreturn_t amifb_interrupt(int irq, void *dev_id, struct pt_regs *fp); |
| 1148 | static u_long chipalloc(u_long size); |
| 1149 | static void chipfree(void); |
| 1150 | |
| 1151 | /* |
| 1152 | * Hardware routines |
| 1153 | */ |
| 1154 | |
| 1155 | static int ami_decode_var(struct fb_var_screeninfo *var, |
| 1156 | struct amifb_par *par); |
| 1157 | static int ami_encode_var(struct fb_var_screeninfo *var, |
| 1158 | struct amifb_par *par); |
| 1159 | static void ami_pan_var(struct fb_var_screeninfo *var); |
| 1160 | static int ami_update_par(void); |
| 1161 | static void ami_update_display(void); |
| 1162 | static void ami_init_display(void); |
| 1163 | static void ami_do_blank(void); |
| 1164 | static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix); |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 1165 | static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data); |
| 1166 | static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1167 | static int ami_get_cursorstate(struct fb_cursorstate *state); |
| 1168 | static int ami_set_cursorstate(struct fb_cursorstate *state); |
| 1169 | static void ami_set_sprite(void); |
| 1170 | static void ami_init_copper(void); |
| 1171 | static void ami_reinit_copper(void); |
| 1172 | static void ami_build_copper(void); |
| 1173 | static void ami_rebuild_copper(void); |
| 1174 | |
| 1175 | |
| 1176 | static struct fb_ops amifb_ops = { |
| 1177 | .owner = THIS_MODULE, |
| 1178 | .fb_check_var = amifb_check_var, |
| 1179 | .fb_set_par = amifb_set_par, |
| 1180 | .fb_setcolreg = amifb_setcolreg, |
| 1181 | .fb_blank = amifb_blank, |
| 1182 | .fb_pan_display = amifb_pan_display, |
| 1183 | .fb_fillrect = amifb_fillrect, |
| 1184 | .fb_copyarea = amifb_copyarea, |
| 1185 | .fb_imageblit = amifb_imageblit, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1186 | .fb_ioctl = amifb_ioctl, |
| 1187 | }; |
| 1188 | |
| 1189 | static void __init amifb_setup_mcap(char *spec) |
| 1190 | { |
| 1191 | char *p; |
| 1192 | int vmin, vmax, hmin, hmax; |
| 1193 | |
| 1194 | /* Format for monitor capabilities is: <Vmin>;<Vmax>;<Hmin>;<Hmax> |
| 1195 | * <V*> vertical freq. in Hz |
| 1196 | * <H*> horizontal freq. in kHz |
| 1197 | */ |
| 1198 | |
| 1199 | if (!(p = strsep(&spec, ";")) || !*p) |
| 1200 | return; |
| 1201 | vmin = simple_strtoul(p, NULL, 10); |
| 1202 | if (vmin <= 0) |
| 1203 | return; |
| 1204 | if (!(p = strsep(&spec, ";")) || !*p) |
| 1205 | return; |
| 1206 | vmax = simple_strtoul(p, NULL, 10); |
| 1207 | if (vmax <= 0 || vmax <= vmin) |
| 1208 | return; |
| 1209 | if (!(p = strsep(&spec, ";")) || !*p) |
| 1210 | return; |
| 1211 | hmin = 1000 * simple_strtoul(p, NULL, 10); |
| 1212 | if (hmin <= 0) |
| 1213 | return; |
| 1214 | if (!(p = strsep(&spec, "")) || !*p) |
| 1215 | return; |
| 1216 | hmax = 1000 * simple_strtoul(p, NULL, 10); |
| 1217 | if (hmax <= 0 || hmax <= hmin) |
| 1218 | return; |
| 1219 | |
| 1220 | fb_info.monspecs.vfmin = vmin; |
| 1221 | fb_info.monspecs.vfmax = vmax; |
| 1222 | fb_info.monspecs.hfmin = hmin; |
| 1223 | fb_info.monspecs.hfmax = hmax; |
| 1224 | } |
| 1225 | |
| 1226 | int __init amifb_setup(char *options) |
| 1227 | { |
| 1228 | char *this_opt; |
| 1229 | |
| 1230 | if (!options || !*options) |
| 1231 | return 0; |
| 1232 | |
| 1233 | while ((this_opt = strsep(&options, ",")) != NULL) { |
| 1234 | if (!*this_opt) |
| 1235 | continue; |
| 1236 | if (!strcmp(this_opt, "inverse")) { |
| 1237 | amifb_inverse = 1; |
| 1238 | fb_invert_cmaps(); |
| 1239 | } else if (!strcmp(this_opt, "ilbm")) |
| 1240 | amifb_ilbm = 1; |
| 1241 | else if (!strncmp(this_opt, "monitorcap:", 11)) |
| 1242 | amifb_setup_mcap(this_opt+11); |
| 1243 | else if (!strncmp(this_opt, "fstart:", 7)) |
| 1244 | min_fstrt = simple_strtoul(this_opt+7, NULL, 0); |
| 1245 | else |
| 1246 | mode_option = this_opt; |
| 1247 | } |
| 1248 | |
| 1249 | if (min_fstrt < 48) |
| 1250 | min_fstrt = 48; |
| 1251 | |
| 1252 | return 0; |
| 1253 | } |
| 1254 | |
| 1255 | |
| 1256 | static int amifb_check_var(struct fb_var_screeninfo *var, |
| 1257 | struct fb_info *info) |
| 1258 | { |
| 1259 | int err; |
| 1260 | struct amifb_par par; |
| 1261 | |
| 1262 | /* Validate wanted screen parameters */ |
| 1263 | if ((err = ami_decode_var(var, &par))) |
| 1264 | return err; |
| 1265 | |
| 1266 | /* Encode (possibly rounded) screen parameters */ |
| 1267 | ami_encode_var(var, &par); |
| 1268 | return 0; |
| 1269 | } |
| 1270 | |
| 1271 | |
| 1272 | static int amifb_set_par(struct fb_info *info) |
| 1273 | { |
| 1274 | struct amifb_par *par = (struct amifb_par *)info->par; |
| 1275 | |
| 1276 | do_vmode_pan = 0; |
| 1277 | do_vmode_full = 0; |
| 1278 | |
| 1279 | /* Decode wanted screen parameters */ |
| 1280 | ami_decode_var(&info->var, par); |
| 1281 | |
| 1282 | /* Set new videomode */ |
| 1283 | ami_build_copper(); |
| 1284 | |
| 1285 | /* Set VBlank trigger */ |
| 1286 | do_vmode_full = 1; |
| 1287 | |
| 1288 | /* Update fix for new screen parameters */ |
| 1289 | if (par->bpp == 1) { |
| 1290 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
| 1291 | info->fix.type_aux = 0; |
| 1292 | } else if (amifb_ilbm) { |
| 1293 | info->fix.type = FB_TYPE_INTERLEAVED_PLANES; |
| 1294 | info->fix.type_aux = par->next_line; |
| 1295 | } else { |
| 1296 | info->fix.type = FB_TYPE_PLANES; |
| 1297 | info->fix.type_aux = 0; |
| 1298 | } |
| 1299 | info->fix.line_length = div8(upx(16<<maxfmode, par->vxres)); |
| 1300 | |
| 1301 | if (par->vmode & FB_VMODE_YWRAP) { |
| 1302 | info->fix.ywrapstep = 1; |
| 1303 | info->fix.xpanstep = 0; |
| 1304 | info->fix.ypanstep = 0; |
| 1305 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YWRAP | |
| 1306 | FBINFO_READS_FAST; /* override SCROLL_REDRAW */ |
| 1307 | } else { |
| 1308 | info->fix.ywrapstep = 0; |
| 1309 | if (par->vmode & FB_VMODE_SMOOTH_XPAN) |
| 1310 | info->fix.xpanstep = 1; |
| 1311 | else |
| 1312 | info->fix.xpanstep = 16<<maxfmode; |
| 1313 | info->fix.ypanstep = 1; |
| 1314 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; |
| 1315 | } |
| 1316 | return 0; |
| 1317 | } |
| 1318 | |
| 1319 | |
| 1320 | /* |
| 1321 | * Pan or Wrap the Display |
| 1322 | * |
| 1323 | * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag |
| 1324 | */ |
| 1325 | |
| 1326 | static int amifb_pan_display(struct fb_var_screeninfo *var, |
| 1327 | struct fb_info *info) |
| 1328 | { |
| 1329 | if (var->vmode & FB_VMODE_YWRAP) { |
| 1330 | if (var->yoffset < 0 || |
| 1331 | var->yoffset >= info->var.yres_virtual || var->xoffset) |
| 1332 | return -EINVAL; |
| 1333 | } else { |
| 1334 | /* |
| 1335 | * TODO: There will be problems when xpan!=1, so some columns |
| 1336 | * on the right side will never be seen |
| 1337 | */ |
| 1338 | if (var->xoffset+info->var.xres > upx(16<<maxfmode, info->var.xres_virtual) || |
| 1339 | var->yoffset+info->var.yres > info->var.yres_virtual) |
| 1340 | return -EINVAL; |
| 1341 | } |
| 1342 | ami_pan_var(var); |
| 1343 | info->var.xoffset = var->xoffset; |
| 1344 | info->var.yoffset = var->yoffset; |
| 1345 | if (var->vmode & FB_VMODE_YWRAP) |
| 1346 | info->var.vmode |= FB_VMODE_YWRAP; |
| 1347 | else |
| 1348 | info->var.vmode &= ~FB_VMODE_YWRAP; |
| 1349 | return 0; |
| 1350 | } |
| 1351 | |
| 1352 | |
| 1353 | #if BITS_PER_LONG == 32 |
| 1354 | #define BYTES_PER_LONG 4 |
| 1355 | #define SHIFT_PER_LONG 5 |
| 1356 | #elif BITS_PER_LONG == 64 |
| 1357 | #define BYTES_PER_LONG 8 |
| 1358 | #define SHIFT_PER_LONG 6 |
| 1359 | #else |
| 1360 | #define Please update me |
| 1361 | #endif |
| 1362 | |
| 1363 | |
| 1364 | /* |
| 1365 | * Compose two values, using a bitmask as decision value |
| 1366 | * This is equivalent to (a & mask) | (b & ~mask) |
| 1367 | */ |
| 1368 | |
| 1369 | static inline unsigned long comp(unsigned long a, unsigned long b, |
| 1370 | unsigned long mask) |
| 1371 | { |
| 1372 | return ((a ^ b) & mask) ^ b; |
| 1373 | } |
| 1374 | |
| 1375 | |
| 1376 | static inline unsigned long xor(unsigned long a, unsigned long b, |
| 1377 | unsigned long mask) |
| 1378 | { |
| 1379 | return (a & mask) ^ b; |
| 1380 | } |
| 1381 | |
| 1382 | |
| 1383 | /* |
| 1384 | * Unaligned forward bit copy using 32-bit or 64-bit memory accesses |
| 1385 | */ |
| 1386 | |
| 1387 | static void bitcpy(unsigned long *dst, int dst_idx, const unsigned long *src, |
| 1388 | int src_idx, u32 n) |
| 1389 | { |
| 1390 | unsigned long first, last; |
| 1391 | int shift = dst_idx-src_idx, left, right; |
| 1392 | unsigned long d0, d1; |
| 1393 | int m; |
| 1394 | |
| 1395 | if (!n) |
| 1396 | return; |
| 1397 | |
| 1398 | shift = dst_idx-src_idx; |
| 1399 | first = ~0UL >> dst_idx; |
| 1400 | last = ~(~0UL >> ((dst_idx+n) % BITS_PER_LONG)); |
| 1401 | |
| 1402 | if (!shift) { |
| 1403 | // Same alignment for source and dest |
| 1404 | |
| 1405 | if (dst_idx+n <= BITS_PER_LONG) { |
| 1406 | // Single word |
| 1407 | if (last) |
| 1408 | first &= last; |
| 1409 | *dst = comp(*src, *dst, first); |
| 1410 | } else { |
| 1411 | // Multiple destination words |
| 1412 | // Leading bits |
| 1413 | if (first) { |
| 1414 | *dst = comp(*src, *dst, first); |
| 1415 | dst++; |
| 1416 | src++; |
| 1417 | n -= BITS_PER_LONG-dst_idx; |
| 1418 | } |
| 1419 | |
| 1420 | // Main chunk |
| 1421 | n /= BITS_PER_LONG; |
| 1422 | while (n >= 8) { |
| 1423 | *dst++ = *src++; |
| 1424 | *dst++ = *src++; |
| 1425 | *dst++ = *src++; |
| 1426 | *dst++ = *src++; |
| 1427 | *dst++ = *src++; |
| 1428 | *dst++ = *src++; |
| 1429 | *dst++ = *src++; |
| 1430 | *dst++ = *src++; |
| 1431 | n -= 8; |
| 1432 | } |
| 1433 | while (n--) |
| 1434 | *dst++ = *src++; |
| 1435 | |
| 1436 | // Trailing bits |
| 1437 | if (last) |
| 1438 | *dst = comp(*src, *dst, last); |
| 1439 | } |
| 1440 | } else { |
| 1441 | // Different alignment for source and dest |
| 1442 | |
| 1443 | right = shift & (BITS_PER_LONG-1); |
| 1444 | left = -shift & (BITS_PER_LONG-1); |
| 1445 | |
| 1446 | if (dst_idx+n <= BITS_PER_LONG) { |
| 1447 | // Single destination word |
| 1448 | if (last) |
| 1449 | first &= last; |
| 1450 | if (shift > 0) { |
| 1451 | // Single source word |
| 1452 | *dst = comp(*src >> right, *dst, first); |
| 1453 | } else if (src_idx+n <= BITS_PER_LONG) { |
| 1454 | // Single source word |
| 1455 | *dst = comp(*src << left, *dst, first); |
| 1456 | } else { |
| 1457 | // 2 source words |
| 1458 | d0 = *src++; |
| 1459 | d1 = *src; |
| 1460 | *dst = comp(d0 << left | d1 >> right, *dst, |
| 1461 | first); |
| 1462 | } |
| 1463 | } else { |
| 1464 | // Multiple destination words |
| 1465 | d0 = *src++; |
| 1466 | // Leading bits |
| 1467 | if (shift > 0) { |
| 1468 | // Single source word |
| 1469 | *dst = comp(d0 >> right, *dst, first); |
| 1470 | dst++; |
| 1471 | n -= BITS_PER_LONG-dst_idx; |
| 1472 | } else { |
| 1473 | // 2 source words |
| 1474 | d1 = *src++; |
| 1475 | *dst = comp(d0 << left | d1 >> right, *dst, |
| 1476 | first); |
| 1477 | d0 = d1; |
| 1478 | dst++; |
| 1479 | n -= BITS_PER_LONG-dst_idx; |
| 1480 | } |
| 1481 | |
| 1482 | // Main chunk |
| 1483 | m = n % BITS_PER_LONG; |
| 1484 | n /= BITS_PER_LONG; |
| 1485 | while (n >= 4) { |
| 1486 | d1 = *src++; |
| 1487 | *dst++ = d0 << left | d1 >> right; |
| 1488 | d0 = d1; |
| 1489 | d1 = *src++; |
| 1490 | *dst++ = d0 << left | d1 >> right; |
| 1491 | d0 = d1; |
| 1492 | d1 = *src++; |
| 1493 | *dst++ = d0 << left | d1 >> right; |
| 1494 | d0 = d1; |
| 1495 | d1 = *src++; |
| 1496 | *dst++ = d0 << left | d1 >> right; |
| 1497 | d0 = d1; |
| 1498 | n -= 4; |
| 1499 | } |
| 1500 | while (n--) { |
| 1501 | d1 = *src++; |
| 1502 | *dst++ = d0 << left | d1 >> right; |
| 1503 | d0 = d1; |
| 1504 | } |
| 1505 | |
| 1506 | // Trailing bits |
| 1507 | if (last) { |
| 1508 | if (m <= right) { |
| 1509 | // Single source word |
| 1510 | *dst = comp(d0 << left, *dst, last); |
| 1511 | } else { |
| 1512 | // 2 source words |
| 1513 | d1 = *src; |
| 1514 | *dst = comp(d0 << left | d1 >> right, |
| 1515 | *dst, last); |
| 1516 | } |
| 1517 | } |
| 1518 | } |
| 1519 | } |
| 1520 | } |
| 1521 | |
| 1522 | |
| 1523 | /* |
| 1524 | * Unaligned reverse bit copy using 32-bit or 64-bit memory accesses |
| 1525 | */ |
| 1526 | |
| 1527 | static void bitcpy_rev(unsigned long *dst, int dst_idx, |
| 1528 | const unsigned long *src, int src_idx, u32 n) |
| 1529 | { |
| 1530 | unsigned long first, last; |
| 1531 | int shift = dst_idx-src_idx, left, right; |
| 1532 | unsigned long d0, d1; |
| 1533 | int m; |
| 1534 | |
| 1535 | if (!n) |
| 1536 | return; |
| 1537 | |
| 1538 | dst += (n-1)/BITS_PER_LONG; |
| 1539 | src += (n-1)/BITS_PER_LONG; |
| 1540 | if ((n-1) % BITS_PER_LONG) { |
| 1541 | dst_idx += (n-1) % BITS_PER_LONG; |
| 1542 | dst += dst_idx >> SHIFT_PER_LONG; |
| 1543 | dst_idx &= BITS_PER_LONG-1; |
| 1544 | src_idx += (n-1) % BITS_PER_LONG; |
| 1545 | src += src_idx >> SHIFT_PER_LONG; |
| 1546 | src_idx &= BITS_PER_LONG-1; |
| 1547 | } |
| 1548 | |
| 1549 | shift = dst_idx-src_idx; |
| 1550 | first = ~0UL << (BITS_PER_LONG-1-dst_idx); |
| 1551 | last = ~(~0UL << (BITS_PER_LONG-1-((dst_idx-n) % BITS_PER_LONG))); |
| 1552 | |
| 1553 | if (!shift) { |
| 1554 | // Same alignment for source and dest |
| 1555 | |
| 1556 | if ((unsigned long)dst_idx+1 >= n) { |
| 1557 | // Single word |
| 1558 | if (last) |
| 1559 | first &= last; |
| 1560 | *dst = comp(*src, *dst, first); |
| 1561 | } else { |
| 1562 | // Multiple destination words |
| 1563 | // Leading bits |
| 1564 | if (first) { |
| 1565 | *dst = comp(*src, *dst, first); |
| 1566 | dst--; |
| 1567 | src--; |
| 1568 | n -= dst_idx+1; |
| 1569 | } |
| 1570 | |
| 1571 | // Main chunk |
| 1572 | n /= BITS_PER_LONG; |
| 1573 | while (n >= 8) { |
| 1574 | *dst-- = *src--; |
| 1575 | *dst-- = *src--; |
| 1576 | *dst-- = *src--; |
| 1577 | *dst-- = *src--; |
| 1578 | *dst-- = *src--; |
| 1579 | *dst-- = *src--; |
| 1580 | *dst-- = *src--; |
| 1581 | *dst-- = *src--; |
| 1582 | n -= 8; |
| 1583 | } |
| 1584 | while (n--) |
| 1585 | *dst-- = *src--; |
| 1586 | |
| 1587 | // Trailing bits |
| 1588 | if (last) |
| 1589 | *dst = comp(*src, *dst, last); |
| 1590 | } |
| 1591 | } else { |
| 1592 | // Different alignment for source and dest |
| 1593 | |
| 1594 | right = shift & (BITS_PER_LONG-1); |
| 1595 | left = -shift & (BITS_PER_LONG-1); |
| 1596 | |
| 1597 | if ((unsigned long)dst_idx+1 >= n) { |
| 1598 | // Single destination word |
| 1599 | if (last) |
| 1600 | first &= last; |
| 1601 | if (shift < 0) { |
| 1602 | // Single source word |
| 1603 | *dst = comp(*src << left, *dst, first); |
| 1604 | } else if (1+(unsigned long)src_idx >= n) { |
| 1605 | // Single source word |
| 1606 | *dst = comp(*src >> right, *dst, first); |
| 1607 | } else { |
| 1608 | // 2 source words |
| 1609 | d0 = *src--; |
| 1610 | d1 = *src; |
| 1611 | *dst = comp(d0 >> right | d1 << left, *dst, |
| 1612 | first); |
| 1613 | } |
| 1614 | } else { |
| 1615 | // Multiple destination words |
| 1616 | d0 = *src--; |
| 1617 | // Leading bits |
| 1618 | if (shift < 0) { |
| 1619 | // Single source word |
| 1620 | *dst = comp(d0 << left, *dst, first); |
| 1621 | dst--; |
| 1622 | n -= dst_idx+1; |
| 1623 | } else { |
| 1624 | // 2 source words |
| 1625 | d1 = *src--; |
| 1626 | *dst = comp(d0 >> right | d1 << left, *dst, |
| 1627 | first); |
| 1628 | d0 = d1; |
| 1629 | dst--; |
| 1630 | n -= dst_idx+1; |
| 1631 | } |
| 1632 | |
| 1633 | // Main chunk |
| 1634 | m = n % BITS_PER_LONG; |
| 1635 | n /= BITS_PER_LONG; |
| 1636 | while (n >= 4) { |
| 1637 | d1 = *src--; |
| 1638 | *dst-- = d0 >> right | d1 << left; |
| 1639 | d0 = d1; |
| 1640 | d1 = *src--; |
| 1641 | *dst-- = d0 >> right | d1 << left; |
| 1642 | d0 = d1; |
| 1643 | d1 = *src--; |
| 1644 | *dst-- = d0 >> right | d1 << left; |
| 1645 | d0 = d1; |
| 1646 | d1 = *src--; |
| 1647 | *dst-- = d0 >> right | d1 << left; |
| 1648 | d0 = d1; |
| 1649 | n -= 4; |
| 1650 | } |
| 1651 | while (n--) { |
| 1652 | d1 = *src--; |
| 1653 | *dst-- = d0 >> right | d1 << left; |
| 1654 | d0 = d1; |
| 1655 | } |
| 1656 | |
| 1657 | // Trailing bits |
| 1658 | if (last) { |
| 1659 | if (m <= left) { |
| 1660 | // Single source word |
| 1661 | *dst = comp(d0 >> right, *dst, last); |
| 1662 | } else { |
| 1663 | // 2 source words |
| 1664 | d1 = *src; |
| 1665 | *dst = comp(d0 >> right | d1 << left, |
| 1666 | *dst, last); |
| 1667 | } |
| 1668 | } |
| 1669 | } |
| 1670 | } |
| 1671 | } |
| 1672 | |
| 1673 | |
| 1674 | /* |
| 1675 | * Unaligned forward inverting bit copy using 32-bit or 64-bit memory |
| 1676 | * accesses |
| 1677 | */ |
| 1678 | |
| 1679 | static void bitcpy_not(unsigned long *dst, int dst_idx, |
| 1680 | const unsigned long *src, int src_idx, u32 n) |
| 1681 | { |
| 1682 | unsigned long first, last; |
| 1683 | int shift = dst_idx-src_idx, left, right; |
| 1684 | unsigned long d0, d1; |
| 1685 | int m; |
| 1686 | |
| 1687 | if (!n) |
| 1688 | return; |
| 1689 | |
| 1690 | shift = dst_idx-src_idx; |
| 1691 | first = ~0UL >> dst_idx; |
| 1692 | last = ~(~0UL >> ((dst_idx+n) % BITS_PER_LONG)); |
| 1693 | |
| 1694 | if (!shift) { |
| 1695 | // Same alignment for source and dest |
| 1696 | |
| 1697 | if (dst_idx+n <= BITS_PER_LONG) { |
| 1698 | // Single word |
| 1699 | if (last) |
| 1700 | first &= last; |
| 1701 | *dst = comp(~*src, *dst, first); |
| 1702 | } else { |
| 1703 | // Multiple destination words |
| 1704 | // Leading bits |
| 1705 | if (first) { |
| 1706 | *dst = comp(~*src, *dst, first); |
| 1707 | dst++; |
| 1708 | src++; |
| 1709 | n -= BITS_PER_LONG-dst_idx; |
| 1710 | } |
| 1711 | |
| 1712 | // Main chunk |
| 1713 | n /= BITS_PER_LONG; |
| 1714 | while (n >= 8) { |
| 1715 | *dst++ = ~*src++; |
| 1716 | *dst++ = ~*src++; |
| 1717 | *dst++ = ~*src++; |
| 1718 | *dst++ = ~*src++; |
| 1719 | *dst++ = ~*src++; |
| 1720 | *dst++ = ~*src++; |
| 1721 | *dst++ = ~*src++; |
| 1722 | *dst++ = ~*src++; |
| 1723 | n -= 8; |
| 1724 | } |
| 1725 | while (n--) |
| 1726 | *dst++ = ~*src++; |
| 1727 | |
| 1728 | // Trailing bits |
| 1729 | if (last) |
| 1730 | *dst = comp(~*src, *dst, last); |
| 1731 | } |
| 1732 | } else { |
| 1733 | // Different alignment for source and dest |
| 1734 | |
| 1735 | right = shift & (BITS_PER_LONG-1); |
| 1736 | left = -shift & (BITS_PER_LONG-1); |
| 1737 | |
| 1738 | if (dst_idx+n <= BITS_PER_LONG) { |
| 1739 | // Single destination word |
| 1740 | if (last) |
| 1741 | first &= last; |
| 1742 | if (shift > 0) { |
| 1743 | // Single source word |
| 1744 | *dst = comp(~*src >> right, *dst, first); |
| 1745 | } else if (src_idx+n <= BITS_PER_LONG) { |
| 1746 | // Single source word |
| 1747 | *dst = comp(~*src << left, *dst, first); |
| 1748 | } else { |
| 1749 | // 2 source words |
| 1750 | d0 = ~*src++; |
| 1751 | d1 = ~*src; |
| 1752 | *dst = comp(d0 << left | d1 >> right, *dst, |
| 1753 | first); |
| 1754 | } |
| 1755 | } else { |
| 1756 | // Multiple destination words |
| 1757 | d0 = ~*src++; |
| 1758 | // Leading bits |
| 1759 | if (shift > 0) { |
| 1760 | // Single source word |
| 1761 | *dst = comp(d0 >> right, *dst, first); |
| 1762 | dst++; |
| 1763 | n -= BITS_PER_LONG-dst_idx; |
| 1764 | } else { |
| 1765 | // 2 source words |
| 1766 | d1 = ~*src++; |
| 1767 | *dst = comp(d0 << left | d1 >> right, *dst, |
| 1768 | first); |
| 1769 | d0 = d1; |
| 1770 | dst++; |
| 1771 | n -= BITS_PER_LONG-dst_idx; |
| 1772 | } |
| 1773 | |
| 1774 | // Main chunk |
| 1775 | m = n % BITS_PER_LONG; |
| 1776 | n /= BITS_PER_LONG; |
| 1777 | while (n >= 4) { |
| 1778 | d1 = ~*src++; |
| 1779 | *dst++ = d0 << left | d1 >> right; |
| 1780 | d0 = d1; |
| 1781 | d1 = ~*src++; |
| 1782 | *dst++ = d0 << left | d1 >> right; |
| 1783 | d0 = d1; |
| 1784 | d1 = ~*src++; |
| 1785 | *dst++ = d0 << left | d1 >> right; |
| 1786 | d0 = d1; |
| 1787 | d1 = ~*src++; |
| 1788 | *dst++ = d0 << left | d1 >> right; |
| 1789 | d0 = d1; |
| 1790 | n -= 4; |
| 1791 | } |
| 1792 | while (n--) { |
| 1793 | d1 = ~*src++; |
| 1794 | *dst++ = d0 << left | d1 >> right; |
| 1795 | d0 = d1; |
| 1796 | } |
| 1797 | |
| 1798 | // Trailing bits |
| 1799 | if (last) { |
| 1800 | if (m <= right) { |
| 1801 | // Single source word |
| 1802 | *dst = comp(d0 << left, *dst, last); |
| 1803 | } else { |
| 1804 | // 2 source words |
| 1805 | d1 = ~*src; |
| 1806 | *dst = comp(d0 << left | d1 >> right, |
| 1807 | *dst, last); |
| 1808 | } |
| 1809 | } |
| 1810 | } |
| 1811 | } |
| 1812 | } |
| 1813 | |
| 1814 | |
| 1815 | /* |
| 1816 | * Unaligned 32-bit pattern fill using 32/64-bit memory accesses |
| 1817 | */ |
| 1818 | |
| 1819 | static void bitfill32(unsigned long *dst, int dst_idx, u32 pat, u32 n) |
| 1820 | { |
| 1821 | unsigned long val = pat; |
| 1822 | unsigned long first, last; |
| 1823 | |
| 1824 | if (!n) |
| 1825 | return; |
| 1826 | |
| 1827 | #if BITS_PER_LONG == 64 |
| 1828 | val |= val << 32; |
| 1829 | #endif |
| 1830 | |
| 1831 | first = ~0UL >> dst_idx; |
| 1832 | last = ~(~0UL >> ((dst_idx+n) % BITS_PER_LONG)); |
| 1833 | |
| 1834 | if (dst_idx+n <= BITS_PER_LONG) { |
| 1835 | // Single word |
| 1836 | if (last) |
| 1837 | first &= last; |
| 1838 | *dst = comp(val, *dst, first); |
| 1839 | } else { |
| 1840 | // Multiple destination words |
| 1841 | // Leading bits |
| 1842 | if (first) { |
| 1843 | *dst = comp(val, *dst, first); |
| 1844 | dst++; |
| 1845 | n -= BITS_PER_LONG-dst_idx; |
| 1846 | } |
| 1847 | |
| 1848 | // Main chunk |
| 1849 | n /= BITS_PER_LONG; |
| 1850 | while (n >= 8) { |
| 1851 | *dst++ = val; |
| 1852 | *dst++ = val; |
| 1853 | *dst++ = val; |
| 1854 | *dst++ = val; |
| 1855 | *dst++ = val; |
| 1856 | *dst++ = val; |
| 1857 | *dst++ = val; |
| 1858 | *dst++ = val; |
| 1859 | n -= 8; |
| 1860 | } |
| 1861 | while (n--) |
| 1862 | *dst++ = val; |
| 1863 | |
| 1864 | // Trailing bits |
| 1865 | if (last) |
| 1866 | *dst = comp(val, *dst, last); |
| 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | |
| 1871 | /* |
| 1872 | * Unaligned 32-bit pattern xor using 32/64-bit memory accesses |
| 1873 | */ |
| 1874 | |
| 1875 | static void bitxor32(unsigned long *dst, int dst_idx, u32 pat, u32 n) |
| 1876 | { |
| 1877 | unsigned long val = pat; |
| 1878 | unsigned long first, last; |
| 1879 | |
| 1880 | if (!n) |
| 1881 | return; |
| 1882 | |
| 1883 | #if BITS_PER_LONG == 64 |
| 1884 | val |= val << 32; |
| 1885 | #endif |
| 1886 | |
| 1887 | first = ~0UL >> dst_idx; |
| 1888 | last = ~(~0UL >> ((dst_idx+n) % BITS_PER_LONG)); |
| 1889 | |
| 1890 | if (dst_idx+n <= BITS_PER_LONG) { |
| 1891 | // Single word |
| 1892 | if (last) |
| 1893 | first &= last; |
| 1894 | *dst = xor(val, *dst, first); |
| 1895 | } else { |
| 1896 | // Multiple destination words |
| 1897 | // Leading bits |
| 1898 | if (first) { |
| 1899 | *dst = xor(val, *dst, first); |
| 1900 | dst++; |
| 1901 | n -= BITS_PER_LONG-dst_idx; |
| 1902 | } |
| 1903 | |
| 1904 | // Main chunk |
| 1905 | n /= BITS_PER_LONG; |
| 1906 | while (n >= 4) { |
| 1907 | *dst++ ^= val; |
| 1908 | *dst++ ^= val; |
| 1909 | *dst++ ^= val; |
| 1910 | *dst++ ^= val; |
| 1911 | n -= 4; |
| 1912 | } |
| 1913 | while (n--) |
| 1914 | *dst++ ^= val; |
| 1915 | |
| 1916 | // Trailing bits |
| 1917 | if (last) |
| 1918 | *dst = xor(val, *dst, last); |
| 1919 | } |
| 1920 | } |
| 1921 | |
| 1922 | static inline void fill_one_line(int bpp, unsigned long next_plane, |
| 1923 | unsigned long *dst, int dst_idx, u32 n, |
| 1924 | u32 color) |
| 1925 | { |
| 1926 | while (1) { |
| 1927 | dst += dst_idx >> SHIFT_PER_LONG; |
| 1928 | dst_idx &= (BITS_PER_LONG-1); |
| 1929 | bitfill32(dst, dst_idx, color & 1 ? ~0 : 0, n); |
| 1930 | if (!--bpp) |
| 1931 | break; |
| 1932 | color >>= 1; |
| 1933 | dst_idx += next_plane*8; |
| 1934 | } |
| 1935 | } |
| 1936 | |
| 1937 | static inline void xor_one_line(int bpp, unsigned long next_plane, |
| 1938 | unsigned long *dst, int dst_idx, u32 n, |
| 1939 | u32 color) |
| 1940 | { |
| 1941 | while (color) { |
| 1942 | dst += dst_idx >> SHIFT_PER_LONG; |
| 1943 | dst_idx &= (BITS_PER_LONG-1); |
| 1944 | bitxor32(dst, dst_idx, color & 1 ? ~0 : 0, n); |
| 1945 | if (!--bpp) |
| 1946 | break; |
| 1947 | color >>= 1; |
| 1948 | dst_idx += next_plane*8; |
| 1949 | } |
| 1950 | } |
| 1951 | |
| 1952 | |
| 1953 | static void amifb_fillrect(struct fb_info *info, |
| 1954 | const struct fb_fillrect *rect) |
| 1955 | { |
| 1956 | struct amifb_par *par = (struct amifb_par *)info->par; |
| 1957 | int dst_idx, x2, y2; |
| 1958 | unsigned long *dst; |
| 1959 | u32 width, height; |
| 1960 | |
| 1961 | if (!rect->width || !rect->height) |
| 1962 | return; |
| 1963 | |
| 1964 | /* |
| 1965 | * We could use hardware clipping but on many cards you get around |
| 1966 | * hardware clipping by writing to framebuffer directly. |
| 1967 | * */ |
| 1968 | x2 = rect->dx + rect->width; |
| 1969 | y2 = rect->dy + rect->height; |
| 1970 | x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; |
| 1971 | y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; |
| 1972 | width = x2 - rect->dx; |
| 1973 | height = y2 - rect->dy; |
| 1974 | |
| 1975 | dst = (unsigned long *) |
| 1976 | ((unsigned long)info->screen_base & ~(BYTES_PER_LONG-1)); |
| 1977 | dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG-1))*8; |
| 1978 | dst_idx += rect->dy*par->next_line*8+rect->dx; |
| 1979 | while (height--) { |
| 1980 | switch (rect->rop) { |
| 1981 | case ROP_COPY: |
| 1982 | fill_one_line(info->var.bits_per_pixel, |
| 1983 | par->next_plane, dst, dst_idx, width, |
| 1984 | rect->color); |
| 1985 | break; |
| 1986 | |
| 1987 | case ROP_XOR: |
| 1988 | xor_one_line(info->var.bits_per_pixel, par->next_plane, |
| 1989 | dst, dst_idx, width, rect->color); |
| 1990 | break; |
| 1991 | } |
| 1992 | dst_idx += par->next_line*8; |
| 1993 | } |
| 1994 | } |
| 1995 | |
| 1996 | static inline void copy_one_line(int bpp, unsigned long next_plane, |
| 1997 | unsigned long *dst, int dst_idx, |
| 1998 | unsigned long *src, int src_idx, u32 n) |
| 1999 | { |
| 2000 | while (1) { |
| 2001 | dst += dst_idx >> SHIFT_PER_LONG; |
| 2002 | dst_idx &= (BITS_PER_LONG-1); |
| 2003 | src += src_idx >> SHIFT_PER_LONG; |
| 2004 | src_idx &= (BITS_PER_LONG-1); |
| 2005 | bitcpy(dst, dst_idx, src, src_idx, n); |
| 2006 | if (!--bpp) |
| 2007 | break; |
| 2008 | dst_idx += next_plane*8; |
| 2009 | src_idx += next_plane*8; |
| 2010 | } |
| 2011 | } |
| 2012 | |
| 2013 | static inline void copy_one_line_rev(int bpp, unsigned long next_plane, |
| 2014 | unsigned long *dst, int dst_idx, |
| 2015 | unsigned long *src, int src_idx, u32 n) |
| 2016 | { |
| 2017 | while (1) { |
| 2018 | dst += dst_idx >> SHIFT_PER_LONG; |
| 2019 | dst_idx &= (BITS_PER_LONG-1); |
| 2020 | src += src_idx >> SHIFT_PER_LONG; |
| 2021 | src_idx &= (BITS_PER_LONG-1); |
| 2022 | bitcpy_rev(dst, dst_idx, src, src_idx, n); |
| 2023 | if (!--bpp) |
| 2024 | break; |
| 2025 | dst_idx += next_plane*8; |
| 2026 | src_idx += next_plane*8; |
| 2027 | } |
| 2028 | } |
| 2029 | |
| 2030 | |
| 2031 | static void amifb_copyarea(struct fb_info *info, |
| 2032 | const struct fb_copyarea *area) |
| 2033 | { |
| 2034 | struct amifb_par *par = (struct amifb_par *)info->par; |
| 2035 | int x2, y2; |
| 2036 | u32 dx, dy, sx, sy, width, height; |
| 2037 | unsigned long *dst, *src; |
| 2038 | int dst_idx, src_idx; |
| 2039 | int rev_copy = 0; |
| 2040 | |
| 2041 | /* clip the destination */ |
| 2042 | x2 = area->dx + area->width; |
| 2043 | y2 = area->dy + area->height; |
| 2044 | dx = area->dx > 0 ? area->dx : 0; |
| 2045 | dy = area->dy > 0 ? area->dy : 0; |
| 2046 | x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; |
| 2047 | y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; |
| 2048 | width = x2 - dx; |
| 2049 | height = y2 - dy; |
| 2050 | |
| 2051 | /* update sx,sy */ |
| 2052 | sx = area->sx + (dx - area->dx); |
| 2053 | sy = area->sy + (dy - area->dy); |
| 2054 | |
| 2055 | /* the source must be completely inside the virtual screen */ |
| 2056 | if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual || |
| 2057 | (sy + height) > info->var.yres_virtual) |
| 2058 | return; |
| 2059 | |
| 2060 | if (dy > sy || (dy == sy && dx > sx)) { |
| 2061 | dy += height; |
| 2062 | sy += height; |
| 2063 | rev_copy = 1; |
| 2064 | } |
| 2065 | dst = (unsigned long *) |
| 2066 | ((unsigned long)info->screen_base & ~(BYTES_PER_LONG-1)); |
| 2067 | src = dst; |
| 2068 | dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG-1))*8; |
| 2069 | src_idx = dst_idx; |
| 2070 | dst_idx += dy*par->next_line*8+dx; |
| 2071 | src_idx += sy*par->next_line*8+sx; |
| 2072 | if (rev_copy) { |
| 2073 | while (height--) { |
| 2074 | dst_idx -= par->next_line*8; |
| 2075 | src_idx -= par->next_line*8; |
| 2076 | copy_one_line_rev(info->var.bits_per_pixel, |
| 2077 | par->next_plane, dst, dst_idx, src, |
| 2078 | src_idx, width); |
| 2079 | } |
| 2080 | } else { |
| 2081 | while (height--) { |
| 2082 | copy_one_line(info->var.bits_per_pixel, |
| 2083 | par->next_plane, dst, dst_idx, src, |
| 2084 | src_idx, width); |
| 2085 | dst_idx += par->next_line*8; |
| 2086 | src_idx += par->next_line*8; |
| 2087 | } |
| 2088 | } |
| 2089 | } |
| 2090 | |
| 2091 | |
| 2092 | static inline void expand_one_line(int bpp, unsigned long next_plane, |
| 2093 | unsigned long *dst, int dst_idx, u32 n, |
| 2094 | const u8 *data, u32 bgcolor, u32 fgcolor) |
| 2095 | { |
| 2096 | const unsigned long *src; |
| 2097 | int src_idx; |
| 2098 | |
| 2099 | while (1) { |
| 2100 | dst += dst_idx >> SHIFT_PER_LONG; |
| 2101 | dst_idx &= (BITS_PER_LONG-1); |
| 2102 | if ((bgcolor ^ fgcolor) & 1) { |
| 2103 | src = (unsigned long *)((unsigned long)data & ~(BYTES_PER_LONG-1)); |
| 2104 | src_idx = ((unsigned long)data & (BYTES_PER_LONG-1))*8; |
| 2105 | if (fgcolor & 1) |
| 2106 | bitcpy(dst, dst_idx, src, src_idx, n); |
| 2107 | else |
| 2108 | bitcpy_not(dst, dst_idx, src, src_idx, n); |
| 2109 | /* set or clear */ |
| 2110 | } else |
| 2111 | bitfill32(dst, dst_idx, fgcolor & 1 ? ~0 : 0, n); |
| 2112 | if (!--bpp) |
| 2113 | break; |
| 2114 | bgcolor >>= 1; |
| 2115 | fgcolor >>= 1; |
| 2116 | dst_idx += next_plane*8; |
| 2117 | } |
| 2118 | } |
| 2119 | |
| 2120 | |
| 2121 | static void amifb_imageblit(struct fb_info *info, const struct fb_image *image) |
| 2122 | { |
| 2123 | struct amifb_par *par = (struct amifb_par *)info->par; |
| 2124 | int x2, y2; |
| 2125 | unsigned long *dst; |
| 2126 | int dst_idx; |
| 2127 | const char *src; |
| 2128 | u32 dx, dy, width, height, pitch; |
| 2129 | |
| 2130 | /* |
| 2131 | * We could use hardware clipping but on many cards you get around |
| 2132 | * hardware clipping by writing to framebuffer directly like we are |
| 2133 | * doing here. |
| 2134 | */ |
| 2135 | x2 = image->dx + image->width; |
| 2136 | y2 = image->dy + image->height; |
| 2137 | dx = image->dx; |
| 2138 | dy = image->dy; |
| 2139 | x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; |
| 2140 | y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; |
| 2141 | width = x2 - dx; |
| 2142 | height = y2 - dy; |
| 2143 | |
| 2144 | if (image->depth == 1) { |
| 2145 | dst = (unsigned long *) |
| 2146 | ((unsigned long)info->screen_base & ~(BYTES_PER_LONG-1)); |
| 2147 | dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG-1))*8; |
| 2148 | dst_idx += dy*par->next_line*8+dx; |
| 2149 | src = image->data; |
| 2150 | pitch = (image->width+7)/8; |
| 2151 | while (height--) { |
| 2152 | expand_one_line(info->var.bits_per_pixel, |
| 2153 | par->next_plane, dst, dst_idx, width, |
| 2154 | src, image->bg_color, |
| 2155 | image->fg_color); |
| 2156 | dst_idx += par->next_line*8; |
| 2157 | src += pitch; |
| 2158 | } |
| 2159 | } else { |
| 2160 | c2p(info->screen_base, image->data, dx, dy, width, height, |
| 2161 | par->next_line, par->next_plane, image->width, |
| 2162 | info->var.bits_per_pixel); |
| 2163 | } |
| 2164 | } |
| 2165 | |
| 2166 | |
| 2167 | /* |
| 2168 | * Amiga Frame Buffer Specific ioctls |
| 2169 | */ |
| 2170 | |
Christoph Hellwig | 67a6680 | 2006-01-14 13:21:25 -0800 | [diff] [blame] | 2171 | static int amifb_ioctl(struct fb_info *info, |
| 2172 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2173 | { |
| 2174 | union { |
| 2175 | struct fb_fix_cursorinfo fix; |
| 2176 | struct fb_var_cursorinfo var; |
| 2177 | struct fb_cursorstate state; |
| 2178 | } crsr; |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 2179 | void __user *argp = (void __user *)arg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2180 | int i; |
| 2181 | |
| 2182 | switch (cmd) { |
| 2183 | case FBIOGET_FCURSORINFO: |
| 2184 | i = ami_get_fix_cursorinfo(&crsr.fix); |
| 2185 | if (i) |
| 2186 | return i; |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 2187 | return copy_to_user(argp, &crsr.fix, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2188 | sizeof(crsr.fix)) ? -EFAULT : 0; |
| 2189 | |
| 2190 | case FBIOGET_VCURSORINFO: |
| 2191 | i = ami_get_var_cursorinfo(&crsr.var, |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 2192 | ((struct fb_var_cursorinfo __user *)arg)->data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2193 | if (i) |
| 2194 | return i; |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 2195 | return copy_to_user(argp, &crsr.var, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2196 | sizeof(crsr.var)) ? -EFAULT : 0; |
| 2197 | |
| 2198 | case FBIOPUT_VCURSORINFO: |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 2199 | if (copy_from_user(&crsr.var, argp, sizeof(crsr.var))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2200 | return -EFAULT; |
| 2201 | return ami_set_var_cursorinfo(&crsr.var, |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 2202 | ((struct fb_var_cursorinfo __user *)arg)->data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2203 | |
| 2204 | case FBIOGET_CURSORSTATE: |
| 2205 | i = ami_get_cursorstate(&crsr.state); |
| 2206 | if (i) |
| 2207 | return i; |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 2208 | return copy_to_user(argp, &crsr.state, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2209 | sizeof(crsr.state)) ? -EFAULT : 0; |
| 2210 | |
| 2211 | case FBIOPUT_CURSORSTATE: |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 2212 | if (copy_from_user(&crsr.state, argp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2213 | sizeof(crsr.state))) |
| 2214 | return -EFAULT; |
| 2215 | return ami_set_cursorstate(&crsr.state); |
| 2216 | } |
| 2217 | return -EINVAL; |
| 2218 | } |
| 2219 | |
| 2220 | |
| 2221 | /* |
| 2222 | * Allocate, Clear and Align a Block of Chip Memory |
| 2223 | */ |
| 2224 | |
| 2225 | static u_long unaligned_chipptr = 0; |
| 2226 | |
| 2227 | static inline u_long __init chipalloc(u_long size) |
| 2228 | { |
| 2229 | size += PAGE_SIZE-1; |
| 2230 | if (!(unaligned_chipptr = (u_long)amiga_chip_alloc(size, |
| 2231 | "amifb [RAM]"))) |
| 2232 | panic("No Chip RAM for frame buffer"); |
| 2233 | memset((void *)unaligned_chipptr, 0, size); |
| 2234 | return PAGE_ALIGN(unaligned_chipptr); |
| 2235 | } |
| 2236 | |
| 2237 | static inline void chipfree(void) |
| 2238 | { |
| 2239 | if (unaligned_chipptr) |
| 2240 | amiga_chip_free((void *)unaligned_chipptr); |
| 2241 | } |
| 2242 | |
| 2243 | |
| 2244 | /* |
| 2245 | * Initialisation |
| 2246 | */ |
| 2247 | |
| 2248 | int __init amifb_init(void) |
| 2249 | { |
| 2250 | int tag, i, err = 0; |
| 2251 | u_long chipptr; |
| 2252 | u_int defmode; |
| 2253 | |
| 2254 | #ifndef MODULE |
| 2255 | char *option = NULL; |
| 2256 | |
| 2257 | if (fb_get_options("amifb", &option)) { |
| 2258 | amifb_video_off(); |
| 2259 | return -ENODEV; |
| 2260 | } |
| 2261 | amifb_setup(option); |
| 2262 | #endif |
| 2263 | if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_VIDEO)) |
| 2264 | return -ENXIO; |
| 2265 | |
| 2266 | /* |
| 2267 | * We request all registers starting from bplpt[0] |
| 2268 | */ |
| 2269 | if (!request_mem_region(CUSTOM_PHYSADDR+0xe0, 0x120, |
| 2270 | "amifb [Denise/Lisa]")) |
| 2271 | return -EBUSY; |
| 2272 | |
| 2273 | custom.dmacon = DMAF_ALL | DMAF_MASTER; |
| 2274 | |
| 2275 | switch (amiga_chipset) { |
| 2276 | #ifdef CONFIG_FB_AMIGA_OCS |
| 2277 | case CS_OCS: |
| 2278 | strcat(fb_info.fix.id, "OCS"); |
| 2279 | default_chipset: |
| 2280 | chipset = TAG_OCS; |
| 2281 | maxdepth[TAG_SHRES] = 0; /* OCS means no SHRES */ |
| 2282 | maxdepth[TAG_HIRES] = 4; |
| 2283 | maxdepth[TAG_LORES] = 6; |
| 2284 | maxfmode = TAG_FMODE_1; |
| 2285 | defmode = amiga_vblank == 50 ? DEFMODE_PAL |
| 2286 | : DEFMODE_NTSC; |
| 2287 | fb_info.fix.smem_len = VIDEOMEMSIZE_OCS; |
| 2288 | break; |
| 2289 | #endif /* CONFIG_FB_AMIGA_OCS */ |
| 2290 | |
| 2291 | #ifdef CONFIG_FB_AMIGA_ECS |
| 2292 | case CS_ECS: |
| 2293 | strcat(fb_info.fix.id, "ECS"); |
| 2294 | chipset = TAG_ECS; |
| 2295 | maxdepth[TAG_SHRES] = 2; |
| 2296 | maxdepth[TAG_HIRES] = 4; |
| 2297 | maxdepth[TAG_LORES] = 6; |
| 2298 | maxfmode = TAG_FMODE_1; |
| 2299 | if (AMIGAHW_PRESENT(AMBER_FF)) |
| 2300 | defmode = amiga_vblank == 50 ? DEFMODE_AMBER_PAL |
| 2301 | : DEFMODE_AMBER_NTSC; |
| 2302 | else |
| 2303 | defmode = amiga_vblank == 50 ? DEFMODE_PAL |
| 2304 | : DEFMODE_NTSC; |
| 2305 | if (amiga_chip_avail()-CHIPRAM_SAFETY_LIMIT > |
| 2306 | VIDEOMEMSIZE_ECS_1M) |
| 2307 | fb_info.fix.smem_len = VIDEOMEMSIZE_ECS_2M; |
| 2308 | else |
| 2309 | fb_info.fix.smem_len = VIDEOMEMSIZE_ECS_1M; |
| 2310 | break; |
| 2311 | #endif /* CONFIG_FB_AMIGA_ECS */ |
| 2312 | |
| 2313 | #ifdef CONFIG_FB_AMIGA_AGA |
| 2314 | case CS_AGA: |
| 2315 | strcat(fb_info.fix.id, "AGA"); |
| 2316 | chipset = TAG_AGA; |
| 2317 | maxdepth[TAG_SHRES] = 8; |
| 2318 | maxdepth[TAG_HIRES] = 8; |
| 2319 | maxdepth[TAG_LORES] = 8; |
| 2320 | maxfmode = TAG_FMODE_4; |
| 2321 | defmode = DEFMODE_AGA; |
| 2322 | if (amiga_chip_avail()-CHIPRAM_SAFETY_LIMIT > |
| 2323 | VIDEOMEMSIZE_AGA_1M) |
| 2324 | fb_info.fix.smem_len = VIDEOMEMSIZE_AGA_2M; |
| 2325 | else |
| 2326 | fb_info.fix.smem_len = VIDEOMEMSIZE_AGA_1M; |
| 2327 | break; |
| 2328 | #endif /* CONFIG_FB_AMIGA_AGA */ |
| 2329 | |
| 2330 | default: |
| 2331 | #ifdef CONFIG_FB_AMIGA_OCS |
| 2332 | printk("Unknown graphics chipset, defaulting to OCS\n"); |
| 2333 | strcat(fb_info.fix.id, "Unknown"); |
| 2334 | goto default_chipset; |
| 2335 | #else /* CONFIG_FB_AMIGA_OCS */ |
| 2336 | err = -ENXIO; |
| 2337 | goto amifb_error; |
| 2338 | #endif /* CONFIG_FB_AMIGA_OCS */ |
| 2339 | break; |
| 2340 | } |
| 2341 | |
| 2342 | /* |
| 2343 | * Calculate the Pixel Clock Values for this Machine |
| 2344 | */ |
| 2345 | |
| 2346 | { |
| 2347 | u_long tmp = DIVUL(200000000000ULL, amiga_eclock); |
| 2348 | |
| 2349 | pixclock[TAG_SHRES] = (tmp + 4) / 8; /* SHRES: 35 ns / 28 MHz */ |
| 2350 | pixclock[TAG_HIRES] = (tmp + 2) / 4; /* HIRES: 70 ns / 14 MHz */ |
| 2351 | pixclock[TAG_LORES] = (tmp + 1) / 2; /* LORES: 140 ns / 7 MHz */ |
| 2352 | } |
| 2353 | |
| 2354 | /* |
| 2355 | * Replace the Tag Values with the Real Pixel Clock Values |
| 2356 | */ |
| 2357 | |
| 2358 | for (i = 0; i < NUM_TOTAL_MODES; i++) { |
| 2359 | struct fb_videomode *mode = &ami_modedb[i]; |
| 2360 | tag = mode->pixclock; |
| 2361 | if (tag == TAG_SHRES || tag == TAG_HIRES || tag == TAG_LORES) { |
| 2362 | mode->pixclock = pixclock[tag]; |
| 2363 | } |
| 2364 | } |
| 2365 | |
| 2366 | /* |
| 2367 | * These monitor specs are for a typical Amiga monitor (e.g. A1960) |
| 2368 | */ |
| 2369 | if (fb_info.monspecs.hfmin == 0) { |
| 2370 | fb_info.monspecs.hfmin = 15000; |
| 2371 | fb_info.monspecs.hfmax = 38000; |
| 2372 | fb_info.monspecs.vfmin = 49; |
| 2373 | fb_info.monspecs.vfmax = 90; |
| 2374 | } |
| 2375 | |
| 2376 | fb_info.fbops = &amifb_ops; |
| 2377 | fb_info.par = ¤tpar; |
| 2378 | fb_info.flags = FBINFO_DEFAULT; |
| 2379 | |
| 2380 | if (!fb_find_mode(&fb_info.var, &fb_info, mode_option, ami_modedb, |
| 2381 | NUM_TOTAL_MODES, &ami_modedb[defmode], 4)) { |
| 2382 | err = -EINVAL; |
| 2383 | goto amifb_error; |
| 2384 | } |
| 2385 | |
| 2386 | round_down_bpp = 0; |
| 2387 | chipptr = chipalloc(fb_info.fix.smem_len+ |
| 2388 | SPRITEMEMSIZE+ |
| 2389 | DUMMYSPRITEMEMSIZE+ |
| 2390 | COPINITSIZE+ |
| 2391 | 4*COPLISTSIZE); |
| 2392 | |
| 2393 | assignchunk(videomemory, u_long, chipptr, fb_info.fix.smem_len); |
| 2394 | assignchunk(spritememory, u_long, chipptr, SPRITEMEMSIZE); |
| 2395 | assignchunk(dummysprite, u_short *, chipptr, DUMMYSPRITEMEMSIZE); |
| 2396 | assignchunk(copdisplay.init, copins *, chipptr, COPINITSIZE); |
| 2397 | assignchunk(copdisplay.list[0][0], copins *, chipptr, COPLISTSIZE); |
| 2398 | assignchunk(copdisplay.list[0][1], copins *, chipptr, COPLISTSIZE); |
| 2399 | assignchunk(copdisplay.list[1][0], copins *, chipptr, COPLISTSIZE); |
| 2400 | assignchunk(copdisplay.list[1][1], copins *, chipptr, COPLISTSIZE); |
| 2401 | |
| 2402 | /* |
| 2403 | * access the videomem with writethrough cache |
| 2404 | */ |
| 2405 | fb_info.fix.smem_start = (u_long)ZTWO_PADDR(videomemory); |
| 2406 | videomemory = (u_long)ioremap_writethrough(fb_info.fix.smem_start, |
| 2407 | fb_info.fix.smem_len); |
| 2408 | if (!videomemory) { |
| 2409 | printk("amifb: WARNING! unable to map videomem cached writethrough\n"); |
| 2410 | videomemory = ZTWO_VADDR(fb_info.fix.smem_start); |
| 2411 | } |
| 2412 | |
| 2413 | fb_info.screen_base = (char *)videomemory; |
| 2414 | memset(dummysprite, 0, DUMMYSPRITEMEMSIZE); |
| 2415 | |
| 2416 | /* |
| 2417 | * Enable Display DMA |
| 2418 | */ |
| 2419 | |
| 2420 | custom.dmacon = DMAF_SETCLR | DMAF_MASTER | DMAF_RASTER | DMAF_COPPER | |
| 2421 | DMAF_BLITTER | DMAF_SPRITE; |
| 2422 | |
| 2423 | /* |
| 2424 | * Make sure the Copper has something to do |
| 2425 | */ |
| 2426 | |
| 2427 | ami_init_copper(); |
| 2428 | |
| 2429 | if (request_irq(IRQ_AMIGA_COPPER, amifb_interrupt, 0, |
| 2430 | "fb vertb handler", ¤tpar)) { |
| 2431 | err = -EBUSY; |
| 2432 | goto amifb_error; |
| 2433 | } |
| 2434 | |
| 2435 | fb_alloc_cmap(&fb_info.cmap, 1<<fb_info.var.bits_per_pixel, 0); |
| 2436 | |
| 2437 | if (register_framebuffer(&fb_info) < 0) { |
| 2438 | err = -EINVAL; |
| 2439 | goto amifb_error; |
| 2440 | } |
| 2441 | |
| 2442 | printk("fb%d: %s frame buffer device, using %dK of video memory\n", |
| 2443 | fb_info.node, fb_info.fix.id, fb_info.fix.smem_len>>10); |
| 2444 | |
| 2445 | return 0; |
| 2446 | |
| 2447 | amifb_error: |
| 2448 | amifb_deinit(); |
| 2449 | return err; |
| 2450 | } |
| 2451 | |
| 2452 | static void amifb_deinit(void) |
| 2453 | { |
| 2454 | fb_dealloc_cmap(&fb_info.cmap); |
| 2455 | chipfree(); |
| 2456 | release_mem_region(CUSTOM_PHYSADDR+0xe0, 0x120); |
| 2457 | custom.dmacon = DMAF_ALL | DMAF_MASTER; |
| 2458 | } |
| 2459 | |
| 2460 | |
| 2461 | /* |
| 2462 | * Blank the display. |
| 2463 | */ |
| 2464 | |
| 2465 | static int amifb_blank(int blank, struct fb_info *info) |
| 2466 | { |
| 2467 | do_blank = blank ? blank : -1; |
| 2468 | |
| 2469 | return 0; |
| 2470 | } |
| 2471 | |
| 2472 | /* |
| 2473 | * Flash the cursor (called by VBlank interrupt) |
| 2474 | */ |
| 2475 | |
| 2476 | static int flash_cursor(void) |
| 2477 | { |
| 2478 | static int cursorcount = 1; |
| 2479 | |
| 2480 | if (cursormode == FB_CURSOR_FLASH) { |
| 2481 | if (!--cursorcount) { |
| 2482 | cursorstate = -cursorstate; |
| 2483 | cursorcount = cursorrate; |
| 2484 | if (!is_blanked) |
| 2485 | return 1; |
| 2486 | } |
| 2487 | } |
| 2488 | return 0; |
| 2489 | } |
| 2490 | |
| 2491 | /* |
| 2492 | * VBlank Display Interrupt |
| 2493 | */ |
| 2494 | |
| 2495 | static irqreturn_t amifb_interrupt(int irq, void *dev_id, struct pt_regs *fp) |
| 2496 | { |
| 2497 | if (do_vmode_pan || do_vmode_full) |
| 2498 | ami_update_display(); |
| 2499 | |
| 2500 | if (do_vmode_full) |
| 2501 | ami_init_display(); |
| 2502 | |
| 2503 | if (do_vmode_pan) { |
| 2504 | flash_cursor(); |
| 2505 | ami_rebuild_copper(); |
| 2506 | do_cursor = do_vmode_pan = 0; |
| 2507 | } else if (do_cursor) { |
| 2508 | flash_cursor(); |
| 2509 | ami_set_sprite(); |
| 2510 | do_cursor = 0; |
| 2511 | } else { |
| 2512 | if (flash_cursor()) |
| 2513 | ami_set_sprite(); |
| 2514 | } |
| 2515 | |
| 2516 | if (do_blank) { |
| 2517 | ami_do_blank(); |
| 2518 | do_blank = 0; |
| 2519 | } |
| 2520 | |
| 2521 | if (do_vmode_full) { |
| 2522 | ami_reinit_copper(); |
| 2523 | do_vmode_full = 0; |
| 2524 | } |
| 2525 | return IRQ_HANDLED; |
| 2526 | } |
| 2527 | |
| 2528 | /* --------------------------- Hardware routines --------------------------- */ |
| 2529 | |
| 2530 | /* |
| 2531 | * Get the video params out of `var'. If a value doesn't fit, round |
| 2532 | * it up, if it's too big, return -EINVAL. |
| 2533 | */ |
| 2534 | |
| 2535 | static int ami_decode_var(struct fb_var_screeninfo *var, |
| 2536 | struct amifb_par *par) |
| 2537 | { |
| 2538 | u_short clk_shift, line_shift; |
| 2539 | u_long maxfetchstop, fstrt, fsize, fconst, xres_n, yres_n; |
| 2540 | u_int htotal, vtotal; |
| 2541 | |
| 2542 | /* |
| 2543 | * Find a matching Pixel Clock |
| 2544 | */ |
| 2545 | |
| 2546 | for (clk_shift = TAG_SHRES; clk_shift <= TAG_LORES; clk_shift++) |
| 2547 | if (var->pixclock <= pixclock[clk_shift]) |
| 2548 | break; |
| 2549 | if (clk_shift > TAG_LORES) { |
| 2550 | DPRINTK("pixclock too high\n"); |
| 2551 | return -EINVAL; |
| 2552 | } |
| 2553 | par->clk_shift = clk_shift; |
| 2554 | |
| 2555 | /* |
| 2556 | * Check the Geometry Values |
| 2557 | */ |
| 2558 | |
| 2559 | if ((par->xres = var->xres) < 64) |
| 2560 | par->xres = 64; |
| 2561 | if ((par->yres = var->yres) < 64) |
| 2562 | par->yres = 64; |
| 2563 | if ((par->vxres = var->xres_virtual) < par->xres) |
| 2564 | par->vxres = par->xres; |
| 2565 | if ((par->vyres = var->yres_virtual) < par->yres) |
| 2566 | par->vyres = par->yres; |
| 2567 | |
| 2568 | par->bpp = var->bits_per_pixel; |
| 2569 | if (!var->nonstd) { |
| 2570 | if (par->bpp < 1) |
| 2571 | par->bpp = 1; |
| 2572 | if (par->bpp > maxdepth[clk_shift]) { |
| 2573 | if (round_down_bpp && maxdepth[clk_shift]) |
| 2574 | par->bpp = maxdepth[clk_shift]; |
| 2575 | else { |
| 2576 | DPRINTK("invalid bpp\n"); |
| 2577 | return -EINVAL; |
| 2578 | } |
| 2579 | } |
| 2580 | } else if (var->nonstd == FB_NONSTD_HAM) { |
| 2581 | if (par->bpp < 6) |
| 2582 | par->bpp = 6; |
| 2583 | if (par->bpp != 6) { |
| 2584 | if (par->bpp < 8) |
| 2585 | par->bpp = 8; |
| 2586 | if (par->bpp != 8 || !IS_AGA) { |
| 2587 | DPRINTK("invalid bpp for ham mode\n"); |
| 2588 | return -EINVAL; |
| 2589 | } |
| 2590 | } |
| 2591 | } else { |
| 2592 | DPRINTK("unknown nonstd mode\n"); |
| 2593 | return -EINVAL; |
| 2594 | } |
| 2595 | |
| 2596 | /* |
| 2597 | * FB_VMODE_SMOOTH_XPAN will be cleared, if one of the folloing |
| 2598 | * checks failed and smooth scrolling is not possible |
| 2599 | */ |
| 2600 | |
| 2601 | par->vmode = var->vmode | FB_VMODE_SMOOTH_XPAN; |
| 2602 | switch (par->vmode & FB_VMODE_MASK) { |
| 2603 | case FB_VMODE_INTERLACED: |
| 2604 | line_shift = 0; |
| 2605 | break; |
| 2606 | case FB_VMODE_NONINTERLACED: |
| 2607 | line_shift = 1; |
| 2608 | break; |
| 2609 | case FB_VMODE_DOUBLE: |
| 2610 | if (!IS_AGA) { |
| 2611 | DPRINTK("double mode only possible with aga\n"); |
| 2612 | return -EINVAL; |
| 2613 | } |
| 2614 | line_shift = 2; |
| 2615 | break; |
| 2616 | default: |
| 2617 | DPRINTK("unknown video mode\n"); |
| 2618 | return -EINVAL; |
| 2619 | break; |
| 2620 | } |
| 2621 | par->line_shift = line_shift; |
| 2622 | |
| 2623 | /* |
| 2624 | * Vertical and Horizontal Timings |
| 2625 | */ |
| 2626 | |
| 2627 | xres_n = par->xres<<clk_shift; |
| 2628 | yres_n = par->yres<<line_shift; |
| 2629 | par->htotal = down8((var->left_margin+par->xres+var->right_margin+var->hsync_len)<<clk_shift); |
| 2630 | par->vtotal = down2(((var->upper_margin+par->yres+var->lower_margin+var->vsync_len)<<line_shift)+1); |
| 2631 | |
| 2632 | if (IS_AGA) |
| 2633 | par->bplcon3 = sprpixmode[clk_shift]; |
| 2634 | else |
| 2635 | par->bplcon3 = 0; |
| 2636 | if (var->sync & FB_SYNC_BROADCAST) { |
| 2637 | par->diwstop_h = par->htotal-((var->right_margin-var->hsync_len)<<clk_shift); |
| 2638 | if (IS_AGA) |
| 2639 | par->diwstop_h += mod4(var->hsync_len); |
| 2640 | else |
| 2641 | par->diwstop_h = down4(par->diwstop_h); |
| 2642 | |
| 2643 | par->diwstrt_h = par->diwstop_h - xres_n; |
| 2644 | par->diwstop_v = par->vtotal-((var->lower_margin-var->vsync_len)<<line_shift); |
| 2645 | par->diwstrt_v = par->diwstop_v - yres_n; |
| 2646 | if (par->diwstop_h >= par->htotal+8) { |
| 2647 | DPRINTK("invalid diwstop_h\n"); |
| 2648 | return -EINVAL; |
| 2649 | } |
| 2650 | if (par->diwstop_v > par->vtotal) { |
| 2651 | DPRINTK("invalid diwstop_v\n"); |
| 2652 | return -EINVAL; |
| 2653 | } |
| 2654 | |
| 2655 | if (!IS_OCS) { |
| 2656 | /* Initialize sync with some reasonable values for pwrsave */ |
| 2657 | par->hsstrt = 160; |
| 2658 | par->hsstop = 320; |
| 2659 | par->vsstrt = 30; |
| 2660 | par->vsstop = 34; |
| 2661 | } else { |
| 2662 | par->hsstrt = 0; |
| 2663 | par->hsstop = 0; |
| 2664 | par->vsstrt = 0; |
| 2665 | par->vsstop = 0; |
| 2666 | } |
| 2667 | if (par->vtotal > (PAL_VTOTAL+NTSC_VTOTAL)/2) { |
| 2668 | /* PAL video mode */ |
| 2669 | if (par->htotal != PAL_HTOTAL) { |
| 2670 | DPRINTK("htotal invalid for pal\n"); |
| 2671 | return -EINVAL; |
| 2672 | } |
| 2673 | if (par->diwstrt_h < PAL_DIWSTRT_H) { |
| 2674 | DPRINTK("diwstrt_h too low for pal\n"); |
| 2675 | return -EINVAL; |
| 2676 | } |
| 2677 | if (par->diwstrt_v < PAL_DIWSTRT_V) { |
| 2678 | DPRINTK("diwstrt_v too low for pal\n"); |
| 2679 | return -EINVAL; |
| 2680 | } |
| 2681 | htotal = PAL_HTOTAL>>clk_shift; |
| 2682 | vtotal = PAL_VTOTAL>>1; |
| 2683 | if (!IS_OCS) { |
| 2684 | par->beamcon0 = BMC0_PAL; |
| 2685 | par->bplcon3 |= BPC3_BRDRBLNK; |
| 2686 | } else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) || |
| 2687 | AMIGAHW_PRESENT(AGNUS_HR_NTSC)) { |
| 2688 | par->beamcon0 = BMC0_PAL; |
| 2689 | par->hsstop = 1; |
| 2690 | } else if (amiga_vblank != 50) { |
| 2691 | DPRINTK("pal not supported by this chipset\n"); |
| 2692 | return -EINVAL; |
| 2693 | } |
| 2694 | } else { |
| 2695 | /* NTSC video mode |
| 2696 | * In the AGA chipset seems to be hardware bug with BPC3_BRDRBLNK |
| 2697 | * and NTSC activated, so than better let diwstop_h <= 1812 |
| 2698 | */ |
| 2699 | if (par->htotal != NTSC_HTOTAL) { |
| 2700 | DPRINTK("htotal invalid for ntsc\n"); |
| 2701 | return -EINVAL; |
| 2702 | } |
| 2703 | if (par->diwstrt_h < NTSC_DIWSTRT_H) { |
| 2704 | DPRINTK("diwstrt_h too low for ntsc\n"); |
| 2705 | return -EINVAL; |
| 2706 | } |
| 2707 | if (par->diwstrt_v < NTSC_DIWSTRT_V) { |
| 2708 | DPRINTK("diwstrt_v too low for ntsc\n"); |
| 2709 | return -EINVAL; |
| 2710 | } |
| 2711 | htotal = NTSC_HTOTAL>>clk_shift; |
| 2712 | vtotal = NTSC_VTOTAL>>1; |
| 2713 | if (!IS_OCS) { |
| 2714 | par->beamcon0 = 0; |
| 2715 | par->bplcon3 |= BPC3_BRDRBLNK; |
| 2716 | } else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) || |
| 2717 | AMIGAHW_PRESENT(AGNUS_HR_NTSC)) { |
| 2718 | par->beamcon0 = 0; |
| 2719 | par->hsstop = 1; |
| 2720 | } else if (amiga_vblank != 60) { |
| 2721 | DPRINTK("ntsc not supported by this chipset\n"); |
| 2722 | return -EINVAL; |
| 2723 | } |
| 2724 | } |
| 2725 | if (IS_OCS) { |
| 2726 | if (par->diwstrt_h >= 1024 || par->diwstop_h < 1024 || |
| 2727 | par->diwstrt_v >= 512 || par->diwstop_v < 256) { |
| 2728 | DPRINTK("invalid position for display on ocs\n"); |
| 2729 | return -EINVAL; |
| 2730 | } |
| 2731 | } |
| 2732 | } else if (!IS_OCS) { |
| 2733 | /* Programmable video mode */ |
| 2734 | par->hsstrt = var->right_margin<<clk_shift; |
| 2735 | par->hsstop = (var->right_margin+var->hsync_len)<<clk_shift; |
| 2736 | par->diwstop_h = par->htotal - mod8(par->hsstrt) + 8 - (1 << clk_shift); |
| 2737 | if (!IS_AGA) |
| 2738 | par->diwstop_h = down4(par->diwstop_h) - 16; |
| 2739 | par->diwstrt_h = par->diwstop_h - xres_n; |
| 2740 | par->hbstop = par->diwstrt_h + 4; |
| 2741 | par->hbstrt = par->diwstop_h + 4; |
| 2742 | if (par->hbstrt >= par->htotal + 8) |
| 2743 | par->hbstrt -= par->htotal; |
| 2744 | par->hcenter = par->hsstrt + (par->htotal >> 1); |
| 2745 | par->vsstrt = var->lower_margin<<line_shift; |
| 2746 | par->vsstop = (var->lower_margin+var->vsync_len)<<line_shift; |
| 2747 | par->diwstop_v = par->vtotal; |
| 2748 | if ((par->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) |
| 2749 | par->diwstop_v -= 2; |
| 2750 | par->diwstrt_v = par->diwstop_v - yres_n; |
| 2751 | par->vbstop = par->diwstrt_v - 2; |
| 2752 | par->vbstrt = par->diwstop_v - 2; |
| 2753 | if (par->vtotal > 2048) { |
| 2754 | DPRINTK("vtotal too high\n"); |
| 2755 | return -EINVAL; |
| 2756 | } |
| 2757 | if (par->htotal > 2048) { |
| 2758 | DPRINTK("htotal too high\n"); |
| 2759 | return -EINVAL; |
| 2760 | } |
| 2761 | par->bplcon3 |= BPC3_EXTBLKEN; |
| 2762 | par->beamcon0 = BMC0_HARDDIS | BMC0_VARVBEN | BMC0_LOLDIS | |
| 2763 | BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARBEAMEN | |
| 2764 | BMC0_PAL | BMC0_VARCSYEN; |
| 2765 | if (var->sync & FB_SYNC_HOR_HIGH_ACT) |
| 2766 | par->beamcon0 |= BMC0_HSYTRUE; |
| 2767 | if (var->sync & FB_SYNC_VERT_HIGH_ACT) |
| 2768 | par->beamcon0 |= BMC0_VSYTRUE; |
| 2769 | if (var->sync & FB_SYNC_COMP_HIGH_ACT) |
| 2770 | par->beamcon0 |= BMC0_CSYTRUE; |
| 2771 | htotal = par->htotal>>clk_shift; |
| 2772 | vtotal = par->vtotal>>1; |
| 2773 | } else { |
| 2774 | DPRINTK("only broadcast modes possible for ocs\n"); |
| 2775 | return -EINVAL; |
| 2776 | } |
| 2777 | |
| 2778 | /* |
| 2779 | * Checking the DMA timing |
| 2780 | */ |
| 2781 | |
| 2782 | fconst = 16<<maxfmode<<clk_shift; |
| 2783 | |
| 2784 | /* |
| 2785 | * smallest window start value without turn off other dma cycles |
| 2786 | * than sprite1-7, unless you change min_fstrt |
| 2787 | */ |
| 2788 | |
| 2789 | |
| 2790 | fsize = ((maxfmode+clk_shift <= 1) ? fconst : 64); |
| 2791 | fstrt = downx(fconst, par->diwstrt_h-4) - fsize; |
| 2792 | if (fstrt < min_fstrt) { |
| 2793 | DPRINTK("fetch start too low\n"); |
| 2794 | return -EINVAL; |
| 2795 | } |
| 2796 | |
| 2797 | /* |
| 2798 | * smallest window start value where smooth scrolling is possible |
| 2799 | */ |
| 2800 | |
| 2801 | fstrt = downx(fconst, par->diwstrt_h-fconst+(1<<clk_shift)-4) - fsize; |
| 2802 | if (fstrt < min_fstrt) |
| 2803 | par->vmode &= ~FB_VMODE_SMOOTH_XPAN; |
| 2804 | |
| 2805 | maxfetchstop = down16(par->htotal - 80); |
| 2806 | |
| 2807 | fstrt = downx(fconst, par->diwstrt_h-4) - 64 - fconst; |
| 2808 | fsize = upx(fconst, xres_n + modx(fconst, downx(1<<clk_shift, par->diwstrt_h-4))); |
| 2809 | if (fstrt + fsize > maxfetchstop) |
| 2810 | par->vmode &= ~FB_VMODE_SMOOTH_XPAN; |
| 2811 | |
| 2812 | fsize = upx(fconst, xres_n); |
| 2813 | if (fstrt + fsize > maxfetchstop) { |
| 2814 | DPRINTK("fetch stop too high\n"); |
| 2815 | return -EINVAL; |
| 2816 | } |
| 2817 | |
| 2818 | if (maxfmode + clk_shift <= 1) { |
| 2819 | fsize = up64(xres_n + fconst - 1); |
| 2820 | if (min_fstrt + fsize - 64 > maxfetchstop) |
| 2821 | par->vmode &= ~FB_VMODE_SMOOTH_XPAN; |
| 2822 | |
| 2823 | fsize = up64(xres_n); |
| 2824 | if (min_fstrt + fsize - 64 > maxfetchstop) { |
| 2825 | DPRINTK("fetch size too high\n"); |
| 2826 | return -EINVAL; |
| 2827 | } |
| 2828 | |
| 2829 | fsize -= 64; |
| 2830 | } else |
| 2831 | fsize -= fconst; |
| 2832 | |
| 2833 | /* |
| 2834 | * Check if there is enough time to update the bitplane pointers for ywrap |
| 2835 | */ |
| 2836 | |
| 2837 | if (par->htotal-fsize-64 < par->bpp*64) |
| 2838 | par->vmode &= ~FB_VMODE_YWRAP; |
| 2839 | |
| 2840 | /* |
| 2841 | * Bitplane calculations and check the Memory Requirements |
| 2842 | */ |
| 2843 | |
| 2844 | if (amifb_ilbm) { |
| 2845 | par->next_plane = div8(upx(16<<maxfmode, par->vxres)); |
| 2846 | par->next_line = par->bpp*par->next_plane; |
| 2847 | if (par->next_line * par->vyres > fb_info.fix.smem_len) { |
| 2848 | DPRINTK("too few video mem\n"); |
| 2849 | return -EINVAL; |
| 2850 | } |
| 2851 | } else { |
| 2852 | par->next_line = div8(upx(16<<maxfmode, par->vxres)); |
| 2853 | par->next_plane = par->vyres*par->next_line; |
| 2854 | if (par->next_plane * par->bpp > fb_info.fix.smem_len) { |
| 2855 | DPRINTK("too few video mem\n"); |
| 2856 | return -EINVAL; |
| 2857 | } |
| 2858 | } |
| 2859 | |
| 2860 | /* |
| 2861 | * Hardware Register Values |
| 2862 | */ |
| 2863 | |
| 2864 | par->bplcon0 = BPC0_COLOR | bplpixmode[clk_shift]; |
| 2865 | if (!IS_OCS) |
| 2866 | par->bplcon0 |= BPC0_ECSENA; |
| 2867 | if (par->bpp == 8) |
| 2868 | par->bplcon0 |= BPC0_BPU3; |
| 2869 | else |
| 2870 | par->bplcon0 |= par->bpp<<12; |
| 2871 | if (var->nonstd == FB_NONSTD_HAM) |
| 2872 | par->bplcon0 |= BPC0_HAM; |
| 2873 | if (var->sync & FB_SYNC_EXT) |
| 2874 | par->bplcon0 |= BPC0_ERSY; |
| 2875 | |
| 2876 | if (IS_AGA) |
| 2877 | par->fmode = bplfetchmode[maxfmode]; |
| 2878 | |
| 2879 | switch (par->vmode & FB_VMODE_MASK) { |
| 2880 | case FB_VMODE_INTERLACED: |
| 2881 | par->bplcon0 |= BPC0_LACE; |
| 2882 | break; |
| 2883 | case FB_VMODE_DOUBLE: |
| 2884 | if (IS_AGA) |
| 2885 | par->fmode |= FMODE_SSCAN2 | FMODE_BSCAN2; |
| 2886 | break; |
| 2887 | } |
| 2888 | |
| 2889 | if (!((par->vmode ^ var->vmode) & FB_VMODE_YWRAP)) { |
| 2890 | par->xoffset = var->xoffset; |
| 2891 | par->yoffset = var->yoffset; |
| 2892 | if (par->vmode & FB_VMODE_YWRAP) { |
| 2893 | if (par->xoffset || par->yoffset < 0 || par->yoffset >= par->vyres) |
| 2894 | par->xoffset = par->yoffset = 0; |
| 2895 | } else { |
| 2896 | if (par->xoffset < 0 || par->xoffset > upx(16<<maxfmode, par->vxres-par->xres) || |
| 2897 | par->yoffset < 0 || par->yoffset > par->vyres-par->yres) |
| 2898 | par->xoffset = par->yoffset = 0; |
| 2899 | } |
| 2900 | } else |
| 2901 | par->xoffset = par->yoffset = 0; |
| 2902 | |
| 2903 | par->crsr.crsr_x = par->crsr.crsr_y = 0; |
| 2904 | par->crsr.spot_x = par->crsr.spot_y = 0; |
| 2905 | par->crsr.height = par->crsr.width = 0; |
| 2906 | |
| 2907 | #if 0 /* fbmon not done. uncomment for 2.5.x -brad */ |
| 2908 | if (!fbmon_valid_timings(pixclock[clk_shift], htotal, vtotal, |
| 2909 | &fb_info)) { |
| 2910 | DPRINTK("mode doesn't fit for monitor\n"); |
| 2911 | return -EINVAL; |
| 2912 | } |
| 2913 | #endif |
| 2914 | |
| 2915 | return 0; |
| 2916 | } |
| 2917 | |
| 2918 | /* |
| 2919 | * Fill the `var' structure based on the values in `par' and maybe |
| 2920 | * other values read out of the hardware. |
| 2921 | */ |
| 2922 | |
| 2923 | static int ami_encode_var(struct fb_var_screeninfo *var, |
| 2924 | struct amifb_par *par) |
| 2925 | { |
| 2926 | u_short clk_shift, line_shift; |
| 2927 | |
| 2928 | memset(var, 0, sizeof(struct fb_var_screeninfo)); |
| 2929 | |
| 2930 | clk_shift = par->clk_shift; |
| 2931 | line_shift = par->line_shift; |
| 2932 | |
| 2933 | var->xres = par->xres; |
| 2934 | var->yres = par->yres; |
| 2935 | var->xres_virtual = par->vxres; |
| 2936 | var->yres_virtual = par->vyres; |
| 2937 | var->xoffset = par->xoffset; |
| 2938 | var->yoffset = par->yoffset; |
| 2939 | |
| 2940 | var->bits_per_pixel = par->bpp; |
| 2941 | var->grayscale = 0; |
| 2942 | |
| 2943 | var->red.offset = 0; |
| 2944 | var->red.msb_right = 0; |
| 2945 | var->red.length = par->bpp; |
| 2946 | if (par->bplcon0 & BPC0_HAM) |
| 2947 | var->red.length -= 2; |
| 2948 | var->blue = var->green = var->red; |
| 2949 | var->transp.offset = 0; |
| 2950 | var->transp.length = 0; |
| 2951 | var->transp.msb_right = 0; |
| 2952 | |
| 2953 | if (par->bplcon0 & BPC0_HAM) |
| 2954 | var->nonstd = FB_NONSTD_HAM; |
| 2955 | else |
| 2956 | var->nonstd = 0; |
| 2957 | var->activate = 0; |
| 2958 | |
| 2959 | var->height = -1; |
| 2960 | var->width = -1; |
| 2961 | |
| 2962 | var->pixclock = pixclock[clk_shift]; |
| 2963 | |
| 2964 | if (IS_AGA && par->fmode & FMODE_BSCAN2) |
| 2965 | var->vmode = FB_VMODE_DOUBLE; |
| 2966 | else if (par->bplcon0 & BPC0_LACE) |
| 2967 | var->vmode = FB_VMODE_INTERLACED; |
| 2968 | else |
| 2969 | var->vmode = FB_VMODE_NONINTERLACED; |
| 2970 | |
| 2971 | if (!IS_OCS && par->beamcon0 & BMC0_VARBEAMEN) { |
| 2972 | var->hsync_len = (par->hsstop-par->hsstrt)>>clk_shift; |
| 2973 | var->right_margin = par->hsstrt>>clk_shift; |
| 2974 | var->left_margin = (par->htotal>>clk_shift) - var->xres - var->right_margin - var->hsync_len; |
| 2975 | var->vsync_len = (par->vsstop-par->vsstrt)>>line_shift; |
| 2976 | var->lower_margin = par->vsstrt>>line_shift; |
| 2977 | var->upper_margin = (par->vtotal>>line_shift) - var->yres - var->lower_margin - var->vsync_len; |
| 2978 | var->sync = 0; |
| 2979 | if (par->beamcon0 & BMC0_HSYTRUE) |
| 2980 | var->sync |= FB_SYNC_HOR_HIGH_ACT; |
| 2981 | if (par->beamcon0 & BMC0_VSYTRUE) |
| 2982 | var->sync |= FB_SYNC_VERT_HIGH_ACT; |
| 2983 | if (par->beamcon0 & BMC0_CSYTRUE) |
| 2984 | var->sync |= FB_SYNC_COMP_HIGH_ACT; |
| 2985 | } else { |
| 2986 | var->sync = FB_SYNC_BROADCAST; |
| 2987 | var->hsync_len = (152>>clk_shift) + mod4(par->diwstop_h); |
| 2988 | var->right_margin = ((par->htotal - down4(par->diwstop_h))>>clk_shift) + var->hsync_len; |
| 2989 | var->left_margin = (par->htotal>>clk_shift) - var->xres - var->right_margin - var->hsync_len; |
| 2990 | var->vsync_len = 4>>line_shift; |
| 2991 | var->lower_margin = ((par->vtotal - par->diwstop_v)>>line_shift) + var->vsync_len; |
| 2992 | var->upper_margin = (((par->vtotal - 2)>>line_shift) + 1) - var->yres - |
| 2993 | var->lower_margin - var->vsync_len; |
| 2994 | } |
| 2995 | |
| 2996 | if (par->bplcon0 & BPC0_ERSY) |
| 2997 | var->sync |= FB_SYNC_EXT; |
| 2998 | if (par->vmode & FB_VMODE_YWRAP) |
| 2999 | var->vmode |= FB_VMODE_YWRAP; |
| 3000 | |
| 3001 | return 0; |
| 3002 | } |
| 3003 | |
| 3004 | |
| 3005 | /* |
| 3006 | * Pan or Wrap the Display |
| 3007 | * |
| 3008 | * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag |
| 3009 | * in `var'. |
| 3010 | */ |
| 3011 | |
| 3012 | static void ami_pan_var(struct fb_var_screeninfo *var) |
| 3013 | { |
| 3014 | struct amifb_par *par = ¤tpar; |
| 3015 | |
| 3016 | par->xoffset = var->xoffset; |
| 3017 | par->yoffset = var->yoffset; |
| 3018 | if (var->vmode & FB_VMODE_YWRAP) |
| 3019 | par->vmode |= FB_VMODE_YWRAP; |
| 3020 | else |
| 3021 | par->vmode &= ~FB_VMODE_YWRAP; |
| 3022 | |
| 3023 | do_vmode_pan = 0; |
| 3024 | ami_update_par(); |
| 3025 | do_vmode_pan = 1; |
| 3026 | } |
| 3027 | |
| 3028 | /* |
| 3029 | * Update hardware |
| 3030 | */ |
| 3031 | |
| 3032 | static int ami_update_par(void) |
| 3033 | { |
| 3034 | struct amifb_par *par = ¤tpar; |
| 3035 | short clk_shift, vshift, fstrt, fsize, fstop, fconst, shift, move, mod; |
| 3036 | |
| 3037 | clk_shift = par->clk_shift; |
| 3038 | |
| 3039 | if (!(par->vmode & FB_VMODE_SMOOTH_XPAN)) |
| 3040 | par->xoffset = upx(16<<maxfmode, par->xoffset); |
| 3041 | |
| 3042 | fconst = 16<<maxfmode<<clk_shift; |
| 3043 | vshift = modx(16<<maxfmode, par->xoffset); |
| 3044 | fstrt = par->diwstrt_h - (vshift<<clk_shift) - 4; |
| 3045 | fsize = (par->xres+vshift)<<clk_shift; |
| 3046 | shift = modx(fconst, fstrt); |
| 3047 | move = downx(2<<maxfmode, div8(par->xoffset)); |
| 3048 | if (maxfmode + clk_shift > 1) { |
| 3049 | fstrt = downx(fconst, fstrt) - 64; |
| 3050 | fsize = upx(fconst, fsize); |
| 3051 | fstop = fstrt + fsize - fconst; |
| 3052 | } else { |
| 3053 | mod = fstrt = downx(fconst, fstrt) - fconst; |
| 3054 | fstop = fstrt + upx(fconst, fsize) - 64; |
| 3055 | fsize = up64(fsize); |
| 3056 | fstrt = fstop - fsize + 64; |
| 3057 | if (fstrt < min_fstrt) { |
| 3058 | fstop += min_fstrt - fstrt; |
| 3059 | fstrt = min_fstrt; |
| 3060 | } |
| 3061 | move = move - div8((mod-fstrt)>>clk_shift); |
| 3062 | } |
| 3063 | mod = par->next_line - div8(fsize>>clk_shift); |
| 3064 | par->ddfstrt = fstrt; |
| 3065 | par->ddfstop = fstop; |
| 3066 | par->bplcon1 = hscroll2hw(shift); |
| 3067 | par->bpl2mod = mod; |
| 3068 | if (par->bplcon0 & BPC0_LACE) |
| 3069 | par->bpl2mod += par->next_line; |
| 3070 | if (IS_AGA && (par->fmode & FMODE_BSCAN2)) |
| 3071 | par->bpl1mod = -div8(fsize>>clk_shift); |
| 3072 | else |
| 3073 | par->bpl1mod = par->bpl2mod; |
| 3074 | |
| 3075 | if (par->yoffset) { |
| 3076 | par->bplpt0 = fb_info.fix.smem_start + par->next_line*par->yoffset + move; |
| 3077 | if (par->vmode & FB_VMODE_YWRAP) { |
| 3078 | if (par->yoffset > par->vyres-par->yres) { |
| 3079 | par->bplpt0wrap = fb_info.fix.smem_start + move; |
| 3080 | if (par->bplcon0 & BPC0_LACE && mod2(par->diwstrt_v+par->vyres-par->yoffset)) |
| 3081 | par->bplpt0wrap += par->next_line; |
| 3082 | } |
| 3083 | } |
| 3084 | } else |
| 3085 | par->bplpt0 = fb_info.fix.smem_start + move; |
| 3086 | |
| 3087 | if (par->bplcon0 & BPC0_LACE && mod2(par->diwstrt_v)) |
| 3088 | par->bplpt0 += par->next_line; |
| 3089 | |
| 3090 | return 0; |
| 3091 | } |
| 3092 | |
| 3093 | |
| 3094 | /* |
| 3095 | * Set a single color register. The values supplied are already |
| 3096 | * rounded down to the hardware's capabilities (according to the |
| 3097 | * entries in the var structure). Return != 0 for invalid regno. |
| 3098 | */ |
| 3099 | |
| 3100 | static int amifb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
| 3101 | u_int transp, struct fb_info *info) |
| 3102 | { |
| 3103 | if (IS_AGA) { |
| 3104 | if (regno > 255) |
| 3105 | return 1; |
| 3106 | } else if (currentpar.bplcon0 & BPC0_SHRES) { |
| 3107 | if (regno > 3) |
| 3108 | return 1; |
| 3109 | } else { |
| 3110 | if (regno > 31) |
| 3111 | return 1; |
| 3112 | } |
| 3113 | red >>= 8; |
| 3114 | green >>= 8; |
| 3115 | blue >>= 8; |
| 3116 | if (!regno) { |
| 3117 | red0 = red; |
| 3118 | green0 = green; |
| 3119 | blue0 = blue; |
| 3120 | } |
| 3121 | |
| 3122 | /* |
| 3123 | * Update the corresponding Hardware Color Register, unless it's Color |
| 3124 | * Register 0 and the screen is blanked. |
| 3125 | * |
| 3126 | * VBlank is switched off to protect bplcon3 or ecs_palette[] from |
| 3127 | * being changed by ami_do_blank() during the VBlank. |
| 3128 | */ |
| 3129 | |
| 3130 | if (regno || !is_blanked) { |
| 3131 | #if defined(CONFIG_FB_AMIGA_AGA) |
| 3132 | if (IS_AGA) { |
| 3133 | u_short bplcon3 = currentpar.bplcon3; |
| 3134 | VBlankOff(); |
| 3135 | custom.bplcon3 = bplcon3 | (regno<<8 & 0xe000); |
| 3136 | custom.color[regno&31] = rgb2hw8_high(red, green, blue); |
| 3137 | custom.bplcon3 = bplcon3 | (regno<<8 & 0xe000) | BPC3_LOCT; |
| 3138 | custom.color[regno&31] = rgb2hw8_low(red, green, blue); |
| 3139 | custom.bplcon3 = bplcon3; |
| 3140 | VBlankOn(); |
| 3141 | } else |
| 3142 | #endif |
| 3143 | #if defined(CONFIG_FB_AMIGA_ECS) |
| 3144 | if (currentpar.bplcon0 & BPC0_SHRES) { |
| 3145 | u_short color, mask; |
| 3146 | int i; |
| 3147 | |
| 3148 | mask = 0x3333; |
| 3149 | color = rgb2hw2(red, green, blue); |
| 3150 | VBlankOff(); |
| 3151 | for (i = regno+12; i >= (int)regno; i -= 4) |
| 3152 | custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color; |
| 3153 | mask <<=2; color >>= 2; |
| 3154 | regno = down16(regno)+mul4(mod4(regno)); |
| 3155 | for (i = regno+3; i >= (int)regno; i--) |
| 3156 | custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color; |
| 3157 | VBlankOn(); |
| 3158 | } else |
| 3159 | #endif |
| 3160 | custom.color[regno] = rgb2hw4(red, green, blue); |
| 3161 | } |
| 3162 | return 0; |
| 3163 | } |
| 3164 | |
| 3165 | static void ami_update_display(void) |
| 3166 | { |
| 3167 | struct amifb_par *par = ¤tpar; |
| 3168 | |
| 3169 | custom.bplcon1 = par->bplcon1; |
| 3170 | custom.bpl1mod = par->bpl1mod; |
| 3171 | custom.bpl2mod = par->bpl2mod; |
| 3172 | custom.ddfstrt = ddfstrt2hw(par->ddfstrt); |
| 3173 | custom.ddfstop = ddfstop2hw(par->ddfstop); |
| 3174 | } |
| 3175 | |
| 3176 | /* |
| 3177 | * Change the video mode (called by VBlank interrupt) |
| 3178 | */ |
| 3179 | |
| 3180 | static void ami_init_display(void) |
| 3181 | { |
| 3182 | struct amifb_par *par = ¤tpar; |
| 3183 | int i; |
| 3184 | |
| 3185 | custom.bplcon0 = par->bplcon0 & ~BPC0_LACE; |
| 3186 | custom.bplcon2 = (IS_OCS ? 0 : BPC2_KILLEHB) | BPC2_PF2P2 | BPC2_PF1P2; |
| 3187 | if (!IS_OCS) { |
| 3188 | custom.bplcon3 = par->bplcon3; |
| 3189 | if (IS_AGA) |
| 3190 | custom.bplcon4 = BPC4_ESPRM4 | BPC4_OSPRM4; |
| 3191 | if (par->beamcon0 & BMC0_VARBEAMEN) { |
| 3192 | custom.htotal = htotal2hw(par->htotal); |
| 3193 | custom.hbstrt = hbstrt2hw(par->hbstrt); |
| 3194 | custom.hbstop = hbstop2hw(par->hbstop); |
| 3195 | custom.hsstrt = hsstrt2hw(par->hsstrt); |
| 3196 | custom.hsstop = hsstop2hw(par->hsstop); |
| 3197 | custom.hcenter = hcenter2hw(par->hcenter); |
| 3198 | custom.vtotal = vtotal2hw(par->vtotal); |
| 3199 | custom.vbstrt = vbstrt2hw(par->vbstrt); |
| 3200 | custom.vbstop = vbstop2hw(par->vbstop); |
| 3201 | custom.vsstrt = vsstrt2hw(par->vsstrt); |
| 3202 | custom.vsstop = vsstop2hw(par->vsstop); |
| 3203 | } |
| 3204 | } |
| 3205 | if (!IS_OCS || par->hsstop) |
| 3206 | custom.beamcon0 = par->beamcon0; |
| 3207 | if (IS_AGA) |
| 3208 | custom.fmode = par->fmode; |
| 3209 | |
| 3210 | /* |
| 3211 | * The minimum period for audio depends on htotal |
| 3212 | */ |
| 3213 | |
| 3214 | amiga_audio_min_period = div16(par->htotal); |
| 3215 | |
| 3216 | is_lace = par->bplcon0 & BPC0_LACE ? 1 : 0; |
| 3217 | #if 1 |
| 3218 | if (is_lace) { |
| 3219 | i = custom.vposr >> 15; |
| 3220 | } else { |
| 3221 | custom.vposw = custom.vposr | 0x8000; |
| 3222 | i = 1; |
| 3223 | } |
| 3224 | #else |
| 3225 | i = 1; |
| 3226 | custom.vposw = custom.vposr | 0x8000; |
| 3227 | #endif |
| 3228 | custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][i]); |
| 3229 | } |
| 3230 | |
| 3231 | /* |
| 3232 | * (Un)Blank the screen (called by VBlank interrupt) |
| 3233 | */ |
| 3234 | |
| 3235 | static void ami_do_blank(void) |
| 3236 | { |
| 3237 | struct amifb_par *par = ¤tpar; |
| 3238 | #if defined(CONFIG_FB_AMIGA_AGA) |
| 3239 | u_short bplcon3 = par->bplcon3; |
| 3240 | #endif |
| 3241 | u_char red, green, blue; |
| 3242 | |
| 3243 | if (do_blank > 0) { |
| 3244 | custom.dmacon = DMAF_RASTER | DMAF_SPRITE; |
| 3245 | red = green = blue = 0; |
| 3246 | if (!IS_OCS && do_blank > 1) { |
| 3247 | switch (do_blank) { |
| 3248 | case FB_BLANK_VSYNC_SUSPEND: |
| 3249 | custom.hsstrt = hsstrt2hw(par->hsstrt); |
| 3250 | custom.hsstop = hsstop2hw(par->hsstop); |
| 3251 | custom.vsstrt = vsstrt2hw(par->vtotal+4); |
| 3252 | custom.vsstop = vsstop2hw(par->vtotal+4); |
| 3253 | break; |
| 3254 | case FB_BLANK_HSYNC_SUSPEND: |
| 3255 | custom.hsstrt = hsstrt2hw(par->htotal+16); |
| 3256 | custom.hsstop = hsstop2hw(par->htotal+16); |
| 3257 | custom.vsstrt = vsstrt2hw(par->vsstrt); |
| 3258 | custom.vsstop = vsstrt2hw(par->vsstop); |
| 3259 | break; |
| 3260 | case FB_BLANK_POWERDOWN: |
| 3261 | custom.hsstrt = hsstrt2hw(par->htotal+16); |
| 3262 | custom.hsstop = hsstop2hw(par->htotal+16); |
| 3263 | custom.vsstrt = vsstrt2hw(par->vtotal+4); |
| 3264 | custom.vsstop = vsstop2hw(par->vtotal+4); |
| 3265 | break; |
| 3266 | } |
| 3267 | if (!(par->beamcon0 & BMC0_VARBEAMEN)) { |
| 3268 | custom.htotal = htotal2hw(par->htotal); |
| 3269 | custom.vtotal = vtotal2hw(par->vtotal); |
| 3270 | custom.beamcon0 = BMC0_HARDDIS | BMC0_VARBEAMEN | |
| 3271 | BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARCSYEN; |
| 3272 | } |
| 3273 | } |
| 3274 | } else { |
| 3275 | custom.dmacon = DMAF_SETCLR | DMAF_RASTER | DMAF_SPRITE; |
| 3276 | red = red0; |
| 3277 | green = green0; |
| 3278 | blue = blue0; |
| 3279 | if (!IS_OCS) { |
| 3280 | custom.hsstrt = hsstrt2hw(par->hsstrt); |
| 3281 | custom.hsstop = hsstop2hw(par->hsstop); |
| 3282 | custom.vsstrt = vsstrt2hw(par->vsstrt); |
| 3283 | custom.vsstop = vsstop2hw(par->vsstop); |
| 3284 | custom.beamcon0 = par->beamcon0; |
| 3285 | } |
| 3286 | } |
| 3287 | #if defined(CONFIG_FB_AMIGA_AGA) |
| 3288 | if (IS_AGA) { |
| 3289 | custom.bplcon3 = bplcon3; |
| 3290 | custom.color[0] = rgb2hw8_high(red, green, blue); |
| 3291 | custom.bplcon3 = bplcon3 | BPC3_LOCT; |
| 3292 | custom.color[0] = rgb2hw8_low(red, green, blue); |
| 3293 | custom.bplcon3 = bplcon3; |
| 3294 | } else |
| 3295 | #endif |
| 3296 | #if defined(CONFIG_FB_AMIGA_ECS) |
| 3297 | if (par->bplcon0 & BPC0_SHRES) { |
| 3298 | u_short color, mask; |
| 3299 | int i; |
| 3300 | |
| 3301 | mask = 0x3333; |
| 3302 | color = rgb2hw2(red, green, blue); |
| 3303 | for (i = 12; i >= 0; i -= 4) |
| 3304 | custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color; |
| 3305 | mask <<=2; color >>= 2; |
| 3306 | for (i = 3; i >= 0; i--) |
| 3307 | custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color; |
| 3308 | } else |
| 3309 | #endif |
| 3310 | custom.color[0] = rgb2hw4(red, green, blue); |
| 3311 | is_blanked = do_blank > 0 ? do_blank : 0; |
| 3312 | } |
| 3313 | |
| 3314 | static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix) |
| 3315 | { |
| 3316 | struct amifb_par *par = ¤tpar; |
| 3317 | |
| 3318 | fix->crsr_width = fix->crsr_xsize = par->crsr.width; |
| 3319 | fix->crsr_height = fix->crsr_ysize = par->crsr.height; |
| 3320 | fix->crsr_color1 = 17; |
| 3321 | fix->crsr_color2 = 18; |
| 3322 | return 0; |
| 3323 | } |
| 3324 | |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 3325 | static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3326 | { |
| 3327 | struct amifb_par *par = ¤tpar; |
| 3328 | register u_short *lspr, *sspr; |
| 3329 | #ifdef __mc68000__ |
| 3330 | register u_long datawords asm ("d2"); |
| 3331 | #else |
| 3332 | register u_long datawords; |
| 3333 | #endif |
| 3334 | register short delta; |
| 3335 | register u_char color; |
| 3336 | short height, width, bits, words; |
| 3337 | int size, alloc; |
| 3338 | |
| 3339 | size = par->crsr.height*par->crsr.width; |
| 3340 | alloc = var->height*var->width; |
| 3341 | var->height = par->crsr.height; |
| 3342 | var->width = par->crsr.width; |
| 3343 | var->xspot = par->crsr.spot_x; |
| 3344 | var->yspot = par->crsr.spot_y; |
| 3345 | if (size > var->height*var->width) |
| 3346 | return -ENAMETOOLONG; |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 3347 | if (!access_ok(VERIFY_WRITE, data, size)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3348 | return -EFAULT; |
| 3349 | delta = 1<<par->crsr.fmode; |
| 3350 | lspr = lofsprite + (delta<<1); |
| 3351 | if (par->bplcon0 & BPC0_LACE) |
| 3352 | sspr = shfsprite + (delta<<1); |
| 3353 | else |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 3354 | sspr = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3355 | for (height = (short)var->height-1; height >= 0; height--) { |
| 3356 | bits = 0; words = delta; datawords = 0; |
| 3357 | for (width = (short)var->width-1; width >= 0; width--) { |
| 3358 | if (bits == 0) { |
| 3359 | bits = 16; --words; |
| 3360 | #ifdef __mc68000__ |
| 3361 | asm volatile ("movew %1@(%3:w:2),%0 ; swap %0 ; movew %1@+,%0" |
| 3362 | : "=d" (datawords), "=a" (lspr) : "1" (lspr), "d" (delta)); |
| 3363 | #else |
| 3364 | datawords = (*(lspr+delta) << 16) | (*lspr++); |
| 3365 | #endif |
| 3366 | } |
| 3367 | --bits; |
| 3368 | #ifdef __mc68000__ |
| 3369 | asm volatile ( |
| 3370 | "clrb %0 ; swap %1 ; lslw #1,%1 ; roxlb #1,%0 ; " |
| 3371 | "swap %1 ; lslw #1,%1 ; roxlb #1,%0" |
| 3372 | : "=d" (color), "=d" (datawords) : "1" (datawords)); |
| 3373 | #else |
| 3374 | color = (((datawords >> 30) & 2) |
| 3375 | | ((datawords >> 15) & 1)); |
| 3376 | datawords <<= 1; |
| 3377 | #endif |
| 3378 | put_user(color, data++); |
| 3379 | } |
| 3380 | if (bits > 0) { |
| 3381 | --words; ++lspr; |
| 3382 | } |
| 3383 | while (--words >= 0) |
| 3384 | ++lspr; |
| 3385 | #ifdef __mc68000__ |
| 3386 | asm volatile ("lea %0@(%4:w:2),%0 ; tstl %1 ; jeq 1f ; exg %0,%1\n1:" |
| 3387 | : "=a" (lspr), "=a" (sspr) : "0" (lspr), "1" (sspr), "d" (delta)); |
| 3388 | #else |
| 3389 | lspr += delta; |
| 3390 | if (sspr) { |
| 3391 | u_short *tmp = lspr; |
| 3392 | lspr = sspr; |
| 3393 | sspr = tmp; |
| 3394 | } |
| 3395 | #endif |
| 3396 | } |
| 3397 | return 0; |
| 3398 | } |
| 3399 | |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 3400 | static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3401 | { |
| 3402 | struct amifb_par *par = ¤tpar; |
| 3403 | register u_short *lspr, *sspr; |
| 3404 | #ifdef __mc68000__ |
| 3405 | register u_long datawords asm ("d2"); |
| 3406 | #else |
| 3407 | register u_long datawords; |
| 3408 | #endif |
| 3409 | register short delta; |
| 3410 | u_short fmode; |
| 3411 | short height, width, bits, words; |
| 3412 | |
| 3413 | if (!var->width) |
| 3414 | return -EINVAL; |
| 3415 | else if (var->width <= 16) |
| 3416 | fmode = TAG_FMODE_1; |
| 3417 | else if (var->width <= 32) |
| 3418 | fmode = TAG_FMODE_2; |
| 3419 | else if (var->width <= 64) |
| 3420 | fmode = TAG_FMODE_4; |
| 3421 | else |
| 3422 | return -EINVAL; |
| 3423 | if (fmode > maxfmode) |
| 3424 | return -EINVAL; |
| 3425 | if (!var->height) |
| 3426 | return -EINVAL; |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 3427 | if (!access_ok(VERIFY_READ, data, var->width*var->height)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3428 | return -EFAULT; |
| 3429 | delta = 1<<fmode; |
| 3430 | lofsprite = shfsprite = (u_short *)spritememory; |
| 3431 | lspr = lofsprite + (delta<<1); |
| 3432 | if (par->bplcon0 & BPC0_LACE) { |
| 3433 | if (((var->height+4)<<fmode<<2) > SPRITEMEMSIZE) |
| 3434 | return -EINVAL; |
| 3435 | memset(lspr, 0, (var->height+4)<<fmode<<2); |
| 3436 | shfsprite += ((var->height+5)&-2)<<fmode; |
| 3437 | sspr = shfsprite + (delta<<1); |
| 3438 | } else { |
| 3439 | if (((var->height+2)<<fmode<<2) > SPRITEMEMSIZE) |
| 3440 | return -EINVAL; |
| 3441 | memset(lspr, 0, (var->height+2)<<fmode<<2); |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 3442 | sspr = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3443 | } |
| 3444 | for (height = (short)var->height-1; height >= 0; height--) { |
| 3445 | bits = 16; words = delta; datawords = 0; |
| 3446 | for (width = (short)var->width-1; width >= 0; width--) { |
| 3447 | unsigned long tdata = 0; |
Al Viro | 3728d25 | 2006-01-12 01:06:31 -0800 | [diff] [blame] | 3448 | get_user(tdata, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3449 | data++; |
| 3450 | #ifdef __mc68000__ |
| 3451 | asm volatile ( |
| 3452 | "lsrb #1,%2 ; roxlw #1,%0 ; swap %0 ; " |
| 3453 | "lsrb #1,%2 ; roxlw #1,%0 ; swap %0" |
| 3454 | : "=d" (datawords) |
| 3455 | : "0" (datawords), "d" (tdata)); |
| 3456 | #else |
| 3457 | datawords = ((datawords << 1) & 0xfffefffe); |
| 3458 | datawords |= tdata & 1; |
| 3459 | datawords |= (tdata & 2) << (16-1); |
| 3460 | #endif |
| 3461 | if (--bits == 0) { |
| 3462 | bits = 16; --words; |
| 3463 | #ifdef __mc68000__ |
| 3464 | asm volatile ("swap %2 ; movew %2,%0@(%3:w:2) ; swap %2 ; movew %2,%0@+" |
| 3465 | : "=a" (lspr) : "0" (lspr), "d" (datawords), "d" (delta)); |
| 3466 | #else |
| 3467 | *(lspr+delta) = (u_short) (datawords >> 16); |
| 3468 | *lspr++ = (u_short) (datawords & 0xffff); |
| 3469 | #endif |
| 3470 | } |
| 3471 | } |
| 3472 | if (bits < 16) { |
| 3473 | --words; |
| 3474 | #ifdef __mc68000__ |
| 3475 | asm volatile ( |
| 3476 | "swap %2 ; lslw %4,%2 ; movew %2,%0@(%3:w:2) ; " |
| 3477 | "swap %2 ; lslw %4,%2 ; movew %2,%0@+" |
| 3478 | : "=a" (lspr) : "0" (lspr), "d" (datawords), "d" (delta), "d" (bits)); |
| 3479 | #else |
| 3480 | *(lspr+delta) = (u_short) (datawords >> (16+bits)); |
| 3481 | *lspr++ = (u_short) ((datawords & 0x0000ffff) >> bits); |
| 3482 | #endif |
| 3483 | } |
| 3484 | while (--words >= 0) { |
| 3485 | #ifdef __mc68000__ |
| 3486 | asm volatile ("moveql #0,%%d0 ; movew %%d0,%0@(%2:w:2) ; movew %%d0,%0@+" |
| 3487 | : "=a" (lspr) : "0" (lspr), "d" (delta) : "d0"); |
| 3488 | #else |
| 3489 | *(lspr+delta) = 0; |
| 3490 | *lspr++ = 0; |
| 3491 | #endif |
| 3492 | } |
| 3493 | #ifdef __mc68000__ |
| 3494 | asm volatile ("lea %0@(%4:w:2),%0 ; tstl %1 ; jeq 1f ; exg %0,%1\n1:" |
| 3495 | : "=a" (lspr), "=a" (sspr) : "0" (lspr), "1" (sspr), "d" (delta)); |
| 3496 | #else |
| 3497 | lspr += delta; |
| 3498 | if (sspr) { |
| 3499 | u_short *tmp = lspr; |
| 3500 | lspr = sspr; |
| 3501 | sspr = tmp; |
| 3502 | } |
| 3503 | #endif |
| 3504 | } |
| 3505 | par->crsr.height = var->height; |
| 3506 | par->crsr.width = var->width; |
| 3507 | par->crsr.spot_x = var->xspot; |
| 3508 | par->crsr.spot_y = var->yspot; |
| 3509 | par->crsr.fmode = fmode; |
| 3510 | if (IS_AGA) { |
| 3511 | par->fmode &= ~(FMODE_SPAGEM | FMODE_SPR32); |
| 3512 | par->fmode |= sprfetchmode[fmode]; |
| 3513 | custom.fmode = par->fmode; |
| 3514 | } |
| 3515 | return 0; |
| 3516 | } |
| 3517 | |
| 3518 | static int ami_get_cursorstate(struct fb_cursorstate *state) |
| 3519 | { |
| 3520 | struct amifb_par *par = ¤tpar; |
| 3521 | |
| 3522 | state->xoffset = par->crsr.crsr_x; |
| 3523 | state->yoffset = par->crsr.crsr_y; |
| 3524 | state->mode = cursormode; |
| 3525 | return 0; |
| 3526 | } |
| 3527 | |
| 3528 | static int ami_set_cursorstate(struct fb_cursorstate *state) |
| 3529 | { |
| 3530 | struct amifb_par *par = ¤tpar; |
| 3531 | |
| 3532 | par->crsr.crsr_x = state->xoffset; |
| 3533 | par->crsr.crsr_y = state->yoffset; |
| 3534 | if ((cursormode = state->mode) == FB_CURSOR_OFF) |
| 3535 | cursorstate = -1; |
| 3536 | do_cursor = 1; |
| 3537 | return 0; |
| 3538 | } |
| 3539 | |
| 3540 | static void ami_set_sprite(void) |
| 3541 | { |
| 3542 | struct amifb_par *par = ¤tpar; |
| 3543 | copins *copl, *cops; |
| 3544 | u_short hs, vs, ve; |
| 3545 | u_long pl, ps, pt; |
| 3546 | short mx, my; |
| 3547 | |
| 3548 | cops = copdisplay.list[currentcop][0]; |
| 3549 | copl = copdisplay.list[currentcop][1]; |
| 3550 | ps = pl = ZTWO_PADDR(dummysprite); |
| 3551 | mx = par->crsr.crsr_x-par->crsr.spot_x; |
| 3552 | my = par->crsr.crsr_y-par->crsr.spot_y; |
| 3553 | if (!(par->vmode & FB_VMODE_YWRAP)) { |
| 3554 | mx -= par->xoffset; |
| 3555 | my -= par->yoffset; |
| 3556 | } |
| 3557 | if (!is_blanked && cursorstate > 0 && par->crsr.height > 0 && |
| 3558 | mx > -(short)par->crsr.width && mx < par->xres && |
| 3559 | my > -(short)par->crsr.height && my < par->yres) { |
| 3560 | pl = ZTWO_PADDR(lofsprite); |
| 3561 | hs = par->diwstrt_h + (mx<<par->clk_shift) - 4; |
| 3562 | vs = par->diwstrt_v + (my<<par->line_shift); |
| 3563 | ve = vs + (par->crsr.height<<par->line_shift); |
| 3564 | if (par->bplcon0 & BPC0_LACE) { |
| 3565 | ps = ZTWO_PADDR(shfsprite); |
| 3566 | lofsprite[0] = spr2hw_pos(vs, hs); |
| 3567 | shfsprite[0] = spr2hw_pos(vs+1, hs); |
| 3568 | if (mod2(vs)) { |
| 3569 | lofsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs, hs, ve); |
| 3570 | shfsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs+1, hs, ve+1); |
| 3571 | pt = pl; pl = ps; ps = pt; |
| 3572 | } else { |
| 3573 | lofsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs, hs, ve+1); |
| 3574 | shfsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs+1, hs, ve); |
| 3575 | } |
| 3576 | } else { |
| 3577 | lofsprite[0] = spr2hw_pos(vs, hs) | (IS_AGA && (par->fmode & FMODE_BSCAN2) ? 0x80 : 0); |
| 3578 | lofsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs, hs, ve); |
| 3579 | } |
| 3580 | } |
| 3581 | copl[cop_spr0ptrh].w[1] = highw(pl); |
| 3582 | copl[cop_spr0ptrl].w[1] = loww(pl); |
| 3583 | if (par->bplcon0 & BPC0_LACE) { |
| 3584 | cops[cop_spr0ptrh].w[1] = highw(ps); |
| 3585 | cops[cop_spr0ptrl].w[1] = loww(ps); |
| 3586 | } |
| 3587 | } |
| 3588 | |
| 3589 | |
| 3590 | /* |
| 3591 | * Initialise the Copper Initialisation List |
| 3592 | */ |
| 3593 | |
| 3594 | static void __init ami_init_copper(void) |
| 3595 | { |
| 3596 | copins *cop = copdisplay.init; |
| 3597 | u_long p; |
| 3598 | int i; |
| 3599 | |
| 3600 | if (!IS_OCS) { |
| 3601 | (cop++)->l = CMOVE(BPC0_COLOR | BPC0_SHRES | BPC0_ECSENA, bplcon0); |
| 3602 | (cop++)->l = CMOVE(0x0181, diwstrt); |
| 3603 | (cop++)->l = CMOVE(0x0281, diwstop); |
| 3604 | (cop++)->l = CMOVE(0x0000, diwhigh); |
| 3605 | } else |
| 3606 | (cop++)->l = CMOVE(BPC0_COLOR, bplcon0); |
| 3607 | p = ZTWO_PADDR(dummysprite); |
| 3608 | for (i = 0; i < 8; i++) { |
| 3609 | (cop++)->l = CMOVE(0, spr[i].pos); |
| 3610 | (cop++)->l = CMOVE(highw(p), sprpt[i]); |
| 3611 | (cop++)->l = CMOVE2(loww(p), sprpt[i]); |
| 3612 | } |
| 3613 | |
| 3614 | (cop++)->l = CMOVE(IF_SETCLR | IF_COPER, intreq); |
| 3615 | copdisplay.wait = cop; |
| 3616 | (cop++)->l = CEND; |
| 3617 | (cop++)->l = CMOVE(0, copjmp2); |
| 3618 | cop->l = CEND; |
| 3619 | |
| 3620 | custom.cop1lc = (u_short *)ZTWO_PADDR(copdisplay.init); |
| 3621 | custom.copjmp1 = 0; |
| 3622 | } |
| 3623 | |
| 3624 | static void ami_reinit_copper(void) |
| 3625 | { |
| 3626 | struct amifb_par *par = ¤tpar; |
| 3627 | |
| 3628 | copdisplay.init[cip_bplcon0].w[1] = ~(BPC0_BPU3 | BPC0_BPU2 | BPC0_BPU1 | BPC0_BPU0) & par->bplcon0; |
| 3629 | copdisplay.wait->l = CWAIT(32, par->diwstrt_v-4); |
| 3630 | } |
| 3631 | |
| 3632 | /* |
| 3633 | * Build the Copper List |
| 3634 | */ |
| 3635 | |
| 3636 | static void ami_build_copper(void) |
| 3637 | { |
| 3638 | struct amifb_par *par = ¤tpar; |
| 3639 | copins *copl, *cops; |
| 3640 | u_long p; |
| 3641 | |
| 3642 | currentcop = 1 - currentcop; |
| 3643 | |
| 3644 | copl = copdisplay.list[currentcop][1]; |
| 3645 | |
| 3646 | (copl++)->l = CWAIT(0, 10); |
| 3647 | (copl++)->l = CMOVE(par->bplcon0, bplcon0); |
| 3648 | (copl++)->l = CMOVE(0, sprpt[0]); |
| 3649 | (copl++)->l = CMOVE2(0, sprpt[0]); |
| 3650 | |
| 3651 | if (par->bplcon0 & BPC0_LACE) { |
| 3652 | cops = copdisplay.list[currentcop][0]; |
| 3653 | |
| 3654 | (cops++)->l = CWAIT(0, 10); |
| 3655 | (cops++)->l = CMOVE(par->bplcon0, bplcon0); |
| 3656 | (cops++)->l = CMOVE(0, sprpt[0]); |
| 3657 | (cops++)->l = CMOVE2(0, sprpt[0]); |
| 3658 | |
| 3659 | (copl++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v+1), diwstrt); |
| 3660 | (copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v+1), diwstop); |
| 3661 | (cops++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v), diwstrt); |
| 3662 | (cops++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop); |
| 3663 | if (!IS_OCS) { |
| 3664 | (copl++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v+1, |
| 3665 | par->diwstop_h, par->diwstop_v+1), diwhigh); |
| 3666 | (cops++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v, |
| 3667 | par->diwstop_h, par->diwstop_v), diwhigh); |
| 3668 | #if 0 |
| 3669 | if (par->beamcon0 & BMC0_VARBEAMEN) { |
| 3670 | (copl++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal); |
| 3671 | (copl++)->l = CMOVE(vbstrt2hw(par->vbstrt+1), vbstrt); |
| 3672 | (copl++)->l = CMOVE(vbstop2hw(par->vbstop+1), vbstop); |
| 3673 | (cops++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal); |
| 3674 | (cops++)->l = CMOVE(vbstrt2hw(par->vbstrt), vbstrt); |
| 3675 | (cops++)->l = CMOVE(vbstop2hw(par->vbstop), vbstop); |
| 3676 | } |
| 3677 | #endif |
| 3678 | } |
| 3679 | p = ZTWO_PADDR(copdisplay.list[currentcop][0]); |
| 3680 | (copl++)->l = CMOVE(highw(p), cop2lc); |
| 3681 | (copl++)->l = CMOVE2(loww(p), cop2lc); |
| 3682 | p = ZTWO_PADDR(copdisplay.list[currentcop][1]); |
| 3683 | (cops++)->l = CMOVE(highw(p), cop2lc); |
| 3684 | (cops++)->l = CMOVE2(loww(p), cop2lc); |
| 3685 | copdisplay.rebuild[0] = cops; |
| 3686 | } else { |
| 3687 | (copl++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v), diwstrt); |
| 3688 | (copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop); |
| 3689 | if (!IS_OCS) { |
| 3690 | (copl++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v, |
| 3691 | par->diwstop_h, par->diwstop_v), diwhigh); |
| 3692 | #if 0 |
| 3693 | if (par->beamcon0 & BMC0_VARBEAMEN) { |
| 3694 | (copl++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal); |
| 3695 | (copl++)->l = CMOVE(vbstrt2hw(par->vbstrt), vbstrt); |
| 3696 | (copl++)->l = CMOVE(vbstop2hw(par->vbstop), vbstop); |
| 3697 | } |
| 3698 | #endif |
| 3699 | } |
| 3700 | } |
| 3701 | copdisplay.rebuild[1] = copl; |
| 3702 | |
| 3703 | ami_update_par(); |
| 3704 | ami_rebuild_copper(); |
| 3705 | } |
| 3706 | |
| 3707 | /* |
| 3708 | * Rebuild the Copper List |
| 3709 | * |
| 3710 | * We only change the things that are not static |
| 3711 | */ |
| 3712 | |
| 3713 | static void ami_rebuild_copper(void) |
| 3714 | { |
| 3715 | struct amifb_par *par = ¤tpar; |
| 3716 | copins *copl, *cops; |
| 3717 | u_short line, h_end1, h_end2; |
| 3718 | short i; |
| 3719 | u_long p; |
| 3720 | |
| 3721 | if (IS_AGA && maxfmode + par->clk_shift == 0) |
| 3722 | h_end1 = par->diwstrt_h-64; |
| 3723 | else |
| 3724 | h_end1 = par->htotal-32; |
| 3725 | h_end2 = par->ddfstop+64; |
| 3726 | |
| 3727 | ami_set_sprite(); |
| 3728 | |
| 3729 | copl = copdisplay.rebuild[1]; |
| 3730 | p = par->bplpt0; |
| 3731 | if (par->vmode & FB_VMODE_YWRAP) { |
| 3732 | if ((par->vyres-par->yoffset) != 1 || !mod2(par->diwstrt_v)) { |
| 3733 | if (par->yoffset > par->vyres-par->yres) { |
| 3734 | for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) { |
| 3735 | (copl++)->l = CMOVE(highw(p), bplpt[i]); |
| 3736 | (copl++)->l = CMOVE2(loww(p), bplpt[i]); |
| 3737 | } |
| 3738 | line = par->diwstrt_v + ((par->vyres-par->yoffset)<<par->line_shift) - 1; |
| 3739 | while (line >= 512) { |
| 3740 | (copl++)->l = CWAIT(h_end1, 510); |
| 3741 | line -= 512; |
| 3742 | } |
| 3743 | if (line >= 510 && IS_AGA && maxfmode + par->clk_shift == 0) |
| 3744 | (copl++)->l = CWAIT(h_end1, line); |
| 3745 | else |
| 3746 | (copl++)->l = CWAIT(h_end2, line); |
| 3747 | p = par->bplpt0wrap; |
| 3748 | } |
| 3749 | } else p = par->bplpt0wrap; |
| 3750 | } |
| 3751 | for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) { |
| 3752 | (copl++)->l = CMOVE(highw(p), bplpt[i]); |
| 3753 | (copl++)->l = CMOVE2(loww(p), bplpt[i]); |
| 3754 | } |
| 3755 | copl->l = CEND; |
| 3756 | |
| 3757 | if (par->bplcon0 & BPC0_LACE) { |
| 3758 | cops = copdisplay.rebuild[0]; |
| 3759 | p = par->bplpt0; |
| 3760 | if (mod2(par->diwstrt_v)) |
| 3761 | p -= par->next_line; |
| 3762 | else |
| 3763 | p += par->next_line; |
| 3764 | if (par->vmode & FB_VMODE_YWRAP) { |
| 3765 | if ((par->vyres-par->yoffset) != 1 || mod2(par->diwstrt_v)) { |
| 3766 | if (par->yoffset > par->vyres-par->yres+1) { |
| 3767 | for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) { |
| 3768 | (cops++)->l = CMOVE(highw(p), bplpt[i]); |
| 3769 | (cops++)->l = CMOVE2(loww(p), bplpt[i]); |
| 3770 | } |
| 3771 | line = par->diwstrt_v + ((par->vyres-par->yoffset)<<par->line_shift) - 2; |
| 3772 | while (line >= 512) { |
| 3773 | (cops++)->l = CWAIT(h_end1, 510); |
| 3774 | line -= 512; |
| 3775 | } |
| 3776 | if (line > 510 && IS_AGA && maxfmode + par->clk_shift == 0) |
| 3777 | (cops++)->l = CWAIT(h_end1, line); |
| 3778 | else |
| 3779 | (cops++)->l = CWAIT(h_end2, line); |
| 3780 | p = par->bplpt0wrap; |
| 3781 | if (mod2(par->diwstrt_v+par->vyres-par->yoffset)) |
| 3782 | p -= par->next_line; |
| 3783 | else |
| 3784 | p += par->next_line; |
| 3785 | } |
| 3786 | } else p = par->bplpt0wrap - par->next_line; |
| 3787 | } |
| 3788 | for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) { |
| 3789 | (cops++)->l = CMOVE(highw(p), bplpt[i]); |
| 3790 | (cops++)->l = CMOVE2(loww(p), bplpt[i]); |
| 3791 | } |
| 3792 | cops->l = CEND; |
| 3793 | } |
| 3794 | } |
| 3795 | |
| 3796 | |
| 3797 | module_init(amifb_init); |
| 3798 | |
| 3799 | #ifdef MODULE |
| 3800 | MODULE_LICENSE("GPL"); |
| 3801 | |
| 3802 | void cleanup_module(void) |
| 3803 | { |
| 3804 | unregister_framebuffer(&fb_info); |
| 3805 | amifb_deinit(); |
| 3806 | amifb_video_off(); |
| 3807 | } |
| 3808 | #endif /* MODULE */ |