1 /* 2 * BRIEF MODULE DESCRIPTION 3 * Au1200 LCD Driver. 4 * 5 * Copyright 2004-2005 AMD 6 * Author: AMD 7 * 8 * Based on: 9 * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device 10 * Created 28 Dec 1997 by Geert Uytterhoeven 11 * 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the 14 * Free Software Foundation; either version 2 of the License, or (at your 15 * option) any later version. 16 * 17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 20 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 24 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * You should have received a copy of the GNU General Public License along 29 * with this program; if not, write to the Free Software Foundation, Inc., 30 * 675 Mass Ave, Cambridge, MA 02139, USA. 31 */ 32 33 #include <linux/module.h> 34 #include <linux/platform_device.h> 35 #include <linux/kernel.h> 36 #include <linux/errno.h> 37 #include <linux/string.h> 38 #include <linux/mm.h> 39 #include <linux/fb.h> 40 #include <linux/init.h> 41 #include <linux/interrupt.h> 42 #include <linux/ctype.h> 43 #include <linux/dma-mapping.h> 44 #include <linux/slab.h> 45 46 #include <asm/mach-au1x00/au1000.h> 47 #include <asm/mach-au1x00/au1200fb.h> /* platform_data */ 48 #include "au1200fb.h" 49 50 #define DRIVER_NAME "au1200fb" 51 #define DRIVER_DESC "LCD controller driver for AU1200 processors" 52 53 #define DEBUG 0 54 55 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg) 56 #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg) 57 #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg) 58 59 #if DEBUG 60 #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg) 61 #else 62 #define print_dbg(f, arg...) do {} while (0) 63 #endif 64 65 66 #define AU1200_LCD_FB_IOCTL 0x46FF 67 68 #define AU1200_LCD_SET_SCREEN 1 69 #define AU1200_LCD_GET_SCREEN 2 70 #define AU1200_LCD_SET_WINDOW 3 71 #define AU1200_LCD_GET_WINDOW 4 72 #define AU1200_LCD_SET_PANEL 5 73 #define AU1200_LCD_GET_PANEL 6 74 75 #define SCREEN_SIZE (1<< 1) 76 #define SCREEN_BACKCOLOR (1<< 2) 77 #define SCREEN_BRIGHTNESS (1<< 3) 78 #define SCREEN_COLORKEY (1<< 4) 79 #define SCREEN_MASK (1<< 5) 80 81 struct au1200_lcd_global_regs_t { 82 unsigned int flags; 83 unsigned int xsize; 84 unsigned int ysize; 85 unsigned int backcolor; 86 unsigned int brightness; 87 unsigned int colorkey; 88 unsigned int mask; 89 unsigned int panel_choice; 90 char panel_desc[80]; 91 92 }; 93 94 #define WIN_POSITION (1<< 0) 95 #define WIN_ALPHA_COLOR (1<< 1) 96 #define WIN_ALPHA_MODE (1<< 2) 97 #define WIN_PRIORITY (1<< 3) 98 #define WIN_CHANNEL (1<< 4) 99 #define WIN_BUFFER_FORMAT (1<< 5) 100 #define WIN_COLOR_ORDER (1<< 6) 101 #define WIN_PIXEL_ORDER (1<< 7) 102 #define WIN_SIZE (1<< 8) 103 #define WIN_COLORKEY_MODE (1<< 9) 104 #define WIN_DOUBLE_BUFFER_MODE (1<< 10) 105 #define WIN_RAM_ARRAY_MODE (1<< 11) 106 #define WIN_BUFFER_SCALE (1<< 12) 107 #define WIN_ENABLE (1<< 13) 108 109 struct au1200_lcd_window_regs_t { 110 unsigned int flags; 111 unsigned int xpos; 112 unsigned int ypos; 113 unsigned int alpha_color; 114 unsigned int alpha_mode; 115 unsigned int priority; 116 unsigned int channel; 117 unsigned int buffer_format; 118 unsigned int color_order; 119 unsigned int pixel_order; 120 unsigned int xsize; 121 unsigned int ysize; 122 unsigned int colorkey_mode; 123 unsigned int double_buffer_mode; 124 unsigned int ram_array_mode; 125 unsigned int xscale; 126 unsigned int yscale; 127 unsigned int enable; 128 }; 129 130 131 struct au1200_lcd_iodata_t { 132 unsigned int subcmd; 133 struct au1200_lcd_global_regs_t global; 134 struct au1200_lcd_window_regs_t window; 135 }; 136 137 #if defined(__BIG_ENDIAN) 138 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11 139 #else 140 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00 141 #endif 142 #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565 143 144 /* Private, per-framebuffer management information (independent of the panel itself) */ 145 struct au1200fb_device { 146 struct fb_info *fb_info; /* FB driver info record */ 147 struct au1200fb_platdata *pd; 148 149 int plane; 150 unsigned char* fb_mem; /* FrameBuffer memory map */ 151 unsigned int fb_len; 152 dma_addr_t fb_phys; 153 }; 154 155 /********************************************************************/ 156 157 /* LCD controller restrictions */ 158 #define AU1200_LCD_MAX_XRES 1280 159 #define AU1200_LCD_MAX_YRES 1024 160 #define AU1200_LCD_MAX_BPP 32 161 #define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */ 162 #define AU1200_LCD_NBR_PALETTE_ENTRIES 256 163 164 /* Default number of visible screen buffer to allocate */ 165 #define AU1200FB_NBR_VIDEO_BUFFERS 1 166 167 /* Default maximum number of fb devices to create */ 168 #define MAX_DEVICE_COUNT 4 169 170 /* Default window configuration entry to use (see windows[]) */ 171 #define DEFAULT_WINDOW_INDEX 2 172 173 /********************************************************************/ 174 175 static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT]; 176 static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR; 177 static int device_count = MAX_DEVICE_COUNT; 178 static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */ 179 static int panel_index = 2; /* default is zero */ 180 static struct window_settings *win; 181 static struct panel_settings *panel; 182 static int noblanking = 1; 183 static int nohwcursor = 0; 184 185 struct window_settings { 186 unsigned char name[64]; 187 uint32 mode_backcolor; 188 uint32 mode_colorkey; 189 uint32 mode_colorkeymsk; 190 struct { 191 int xres; 192 int yres; 193 int xpos; 194 int ypos; 195 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */ 196 uint32 mode_winenable; 197 } w[4]; 198 }; 199 200 #if defined(__BIG_ENDIAN) 201 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00 202 #else 203 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01 204 #endif 205 206 /* 207 * Default window configurations 208 */ 209 static struct window_settings windows[] = { 210 { /* Index 0 */ 211 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 212 /* mode_backcolor */ 0x006600ff, 213 /* mode_colorkey,msk*/ 0, 0, 214 { 215 { 216 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 217 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 218 LCD_WINCTRL1_PO_16BPP, 219 /* mode_winenable*/ LCD_WINENABLE_WEN0, 220 }, 221 { 222 /* xres, yres, xpos, ypos */ 100, 100, 100, 100, 223 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 224 LCD_WINCTRL1_PO_16BPP | 225 LCD_WINCTRL1_PIPE, 226 /* mode_winenable*/ LCD_WINENABLE_WEN1, 227 }, 228 { 229 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 230 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 231 LCD_WINCTRL1_PO_16BPP, 232 /* mode_winenable*/ 0, 233 }, 234 { 235 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 236 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 237 LCD_WINCTRL1_PO_16BPP | 238 LCD_WINCTRL1_PIPE, 239 /* mode_winenable*/ 0, 240 }, 241 }, 242 }, 243 244 { /* Index 1 */ 245 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 246 /* mode_backcolor */ 0x006600ff, 247 /* mode_colorkey,msk*/ 0, 0, 248 { 249 { 250 /* xres, yres, xpos, ypos */ 320, 240, 5, 5, 251 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP | 252 LCD_WINCTRL1_PO_00, 253 /* mode_winenable*/ LCD_WINENABLE_WEN0, 254 }, 255 { 256 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 257 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 258 | LCD_WINCTRL1_PO_16BPP, 259 /* mode_winenable*/ 0, 260 }, 261 { 262 /* xres, yres, xpos, ypos */ 100, 100, 0, 0, 263 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 264 LCD_WINCTRL1_PO_16BPP | 265 LCD_WINCTRL1_PIPE, 266 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, 267 }, 268 { 269 /* xres, yres, xpos, ypos */ 200, 25, 0, 0, 270 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 271 LCD_WINCTRL1_PO_16BPP | 272 LCD_WINCTRL1_PIPE, 273 /* mode_winenable*/ 0, 274 }, 275 }, 276 }, 277 { /* Index 2 */ 278 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 279 /* mode_backcolor */ 0x006600ff, 280 /* mode_colorkey,msk*/ 0, 0, 281 { 282 { 283 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 284 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 285 LCD_WINCTRL1_PO_16BPP, 286 /* mode_winenable*/ LCD_WINENABLE_WEN0, 287 }, 288 { 289 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 290 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 291 LCD_WINCTRL1_PO_16BPP, 292 /* mode_winenable*/ 0, 293 }, 294 { 295 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 296 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP | 297 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE, 298 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, 299 }, 300 { 301 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 302 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 303 LCD_WINCTRL1_PO_16BPP | 304 LCD_WINCTRL1_PIPE, 305 /* mode_winenable*/ 0, 306 }, 307 }, 308 }, 309 /* Need VGA 640 @ 24bpp, @ 32bpp */ 310 /* Need VGA 800 @ 24bpp, @ 32bpp */ 311 /* Need VGA 1024 @ 24bpp, @ 32bpp */ 312 }; 313 314 /* 315 * Controller configurations for various panels. 316 */ 317 318 struct panel_settings 319 { 320 const char name[25]; /* Full name <vendor>_<model> */ 321 322 struct fb_monspecs monspecs; /* FB monitor specs */ 323 324 /* panel timings */ 325 uint32 mode_screen; 326 uint32 mode_horztiming; 327 uint32 mode_verttiming; 328 uint32 mode_clkcontrol; 329 uint32 mode_pwmdiv; 330 uint32 mode_pwmhi; 331 uint32 mode_outmask; 332 uint32 mode_fifoctrl; 333 uint32 mode_toyclksrc; 334 uint32 mode_backlight; 335 uint32 mode_auxpll; 336 #define Xres min_xres 337 #define Yres min_yres 338 u32 min_xres; /* Minimum horizontal resolution */ 339 u32 max_xres; /* Maximum horizontal resolution */ 340 u32 min_yres; /* Minimum vertical resolution */ 341 u32 max_yres; /* Maximum vertical resolution */ 342 }; 343 344 /********************************************************************/ 345 /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */ 346 347 /* List of panels known to work with the AU1200 LCD controller. 348 * To add a new panel, enter the same specifications as the 349 * Generic_TFT one, and MAKE SURE that it doesn't conflicts 350 * with the controller restrictions. Restrictions are: 351 * 352 * STN color panels: max_bpp <= 12 353 * STN mono panels: max_bpp <= 4 354 * TFT panels: max_bpp <= 16 355 * max_xres <= 800 356 * max_yres <= 600 357 */ 358 static struct panel_settings known_lcd_panels[] = 359 { 360 [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */ 361 .name = "QVGA_320x240", 362 .monspecs = { 363 .modedb = NULL, 364 .modedb_len = 0, 365 .hfmin = 30000, 366 .hfmax = 70000, 367 .vfmin = 60, 368 .vfmax = 60, 369 .dclkmin = 6000000, 370 .dclkmax = 28000000, 371 .input = FB_DISP_RGB, 372 }, 373 .mode_screen = LCD_SCREEN_SX_N(320) | 374 LCD_SCREEN_SY_N(240), 375 .mode_horztiming = 0x00c4623b, 376 .mode_verttiming = 0x00502814, 377 .mode_clkcontrol = 0x00020002, /* /4=24Mhz */ 378 .mode_pwmdiv = 0x00000000, 379 .mode_pwmhi = 0x00000000, 380 .mode_outmask = 0x00FFFFFF, 381 .mode_fifoctrl = 0x2f2f2f2f, 382 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 383 .mode_backlight = 0x00000000, 384 .mode_auxpll = 8, /* 96MHz AUXPLL */ 385 320, 320, 386 240, 240, 387 }, 388 389 [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */ 390 .name = "VGA_640x480", 391 .monspecs = { 392 .modedb = NULL, 393 .modedb_len = 0, 394 .hfmin = 30000, 395 .hfmax = 70000, 396 .vfmin = 60, 397 .vfmax = 60, 398 .dclkmin = 6000000, 399 .dclkmax = 28000000, 400 .input = FB_DISP_RGB, 401 }, 402 .mode_screen = 0x13f9df80, 403 .mode_horztiming = 0x003c5859, 404 .mode_verttiming = 0x00741201, 405 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ 406 .mode_pwmdiv = 0x00000000, 407 .mode_pwmhi = 0x00000000, 408 .mode_outmask = 0x00FFFFFF, 409 .mode_fifoctrl = 0x2f2f2f2f, 410 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 411 .mode_backlight = 0x00000000, 412 .mode_auxpll = 8, /* 96MHz AUXPLL */ 413 640, 480, 414 640, 480, 415 }, 416 417 [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */ 418 .name = "SVGA_800x600", 419 .monspecs = { 420 .modedb = NULL, 421 .modedb_len = 0, 422 .hfmin = 30000, 423 .hfmax = 70000, 424 .vfmin = 60, 425 .vfmax = 60, 426 .dclkmin = 6000000, 427 .dclkmax = 28000000, 428 .input = FB_DISP_RGB, 429 }, 430 .mode_screen = 0x18fa5780, 431 .mode_horztiming = 0x00dc7e77, 432 .mode_verttiming = 0x00584805, 433 .mode_clkcontrol = 0x00020000, /* /2=48Mhz */ 434 .mode_pwmdiv = 0x00000000, 435 .mode_pwmhi = 0x00000000, 436 .mode_outmask = 0x00FFFFFF, 437 .mode_fifoctrl = 0x2f2f2f2f, 438 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 439 .mode_backlight = 0x00000000, 440 .mode_auxpll = 8, /* 96MHz AUXPLL */ 441 800, 800, 442 600, 600, 443 }, 444 445 [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */ 446 .name = "XVGA_1024x768", 447 .monspecs = { 448 .modedb = NULL, 449 .modedb_len = 0, 450 .hfmin = 30000, 451 .hfmax = 70000, 452 .vfmin = 60, 453 .vfmax = 60, 454 .dclkmin = 6000000, 455 .dclkmax = 28000000, 456 .input = FB_DISP_RGB, 457 }, 458 .mode_screen = 0x1ffaff80, 459 .mode_horztiming = 0x007d0e57, 460 .mode_verttiming = 0x00740a01, 461 .mode_clkcontrol = 0x000A0000, /* /1 */ 462 .mode_pwmdiv = 0x00000000, 463 .mode_pwmhi = 0x00000000, 464 .mode_outmask = 0x00FFFFFF, 465 .mode_fifoctrl = 0x2f2f2f2f, 466 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 467 .mode_backlight = 0x00000000, 468 .mode_auxpll = 6, /* 72MHz AUXPLL */ 469 1024, 1024, 470 768, 768, 471 }, 472 473 [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */ 474 .name = "XVGA_1280x1024", 475 .monspecs = { 476 .modedb = NULL, 477 .modedb_len = 0, 478 .hfmin = 30000, 479 .hfmax = 70000, 480 .vfmin = 60, 481 .vfmax = 60, 482 .dclkmin = 6000000, 483 .dclkmax = 28000000, 484 .input = FB_DISP_RGB, 485 }, 486 .mode_screen = 0x27fbff80, 487 .mode_horztiming = 0x00cdb2c7, 488 .mode_verttiming = 0x00600002, 489 .mode_clkcontrol = 0x000A0000, /* /1 */ 490 .mode_pwmdiv = 0x00000000, 491 .mode_pwmhi = 0x00000000, 492 .mode_outmask = 0x00FFFFFF, 493 .mode_fifoctrl = 0x2f2f2f2f, 494 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 495 .mode_backlight = 0x00000000, 496 .mode_auxpll = 10, /* 120MHz AUXPLL */ 497 1280, 1280, 498 1024, 1024, 499 }, 500 501 [5] = { /* Samsung 1024x768 TFT */ 502 .name = "Samsung_1024x768_TFT", 503 .monspecs = { 504 .modedb = NULL, 505 .modedb_len = 0, 506 .hfmin = 30000, 507 .hfmax = 70000, 508 .vfmin = 60, 509 .vfmax = 60, 510 .dclkmin = 6000000, 511 .dclkmax = 28000000, 512 .input = FB_DISP_RGB, 513 }, 514 .mode_screen = 0x1ffaff80, 515 .mode_horztiming = 0x018cc677, 516 .mode_verttiming = 0x00241217, 517 .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */ 518 .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */ 519 .mode_pwmhi = 0x03400000, /* SCB 0x0 */ 520 .mode_outmask = 0x00FFFFFF, 521 .mode_fifoctrl = 0x2f2f2f2f, 522 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 523 .mode_backlight = 0x00000000, 524 .mode_auxpll = 8, /* 96MHz AUXPLL */ 525 1024, 1024, 526 768, 768, 527 }, 528 529 [6] = { /* Toshiba 640x480 TFT */ 530 .name = "Toshiba_640x480_TFT", 531 .monspecs = { 532 .modedb = NULL, 533 .modedb_len = 0, 534 .hfmin = 30000, 535 .hfmax = 70000, 536 .vfmin = 60, 537 .vfmax = 60, 538 .dclkmin = 6000000, 539 .dclkmax = 28000000, 540 .input = FB_DISP_RGB, 541 }, 542 .mode_screen = LCD_SCREEN_SX_N(640) | 543 LCD_SCREEN_SY_N(480), 544 .mode_horztiming = LCD_HORZTIMING_HPW_N(96) | 545 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51), 546 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | 547 LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32), 548 .mode_clkcontrol = 0x00000000, /* /4=24Mhz */ 549 .mode_pwmdiv = 0x8000063f, 550 .mode_pwmhi = 0x03400000, 551 .mode_outmask = 0x00fcfcfc, 552 .mode_fifoctrl = 0x2f2f2f2f, 553 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 554 .mode_backlight = 0x00000000, 555 .mode_auxpll = 8, /* 96MHz AUXPLL */ 556 640, 480, 557 640, 480, 558 }, 559 560 [7] = { /* Sharp 320x240 TFT */ 561 .name = "Sharp_320x240_TFT", 562 .monspecs = { 563 .modedb = NULL, 564 .modedb_len = 0, 565 .hfmin = 12500, 566 .hfmax = 20000, 567 .vfmin = 38, 568 .vfmax = 81, 569 .dclkmin = 4500000, 570 .dclkmax = 6800000, 571 .input = FB_DISP_RGB, 572 }, 573 .mode_screen = LCD_SCREEN_SX_N(320) | 574 LCD_SCREEN_SY_N(240), 575 .mode_horztiming = LCD_HORZTIMING_HPW_N(60) | 576 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2), 577 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | 578 LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5), 579 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/ 580 .mode_pwmdiv = 0x8000063f, 581 .mode_pwmhi = 0x03400000, 582 .mode_outmask = 0x00fcfcfc, 583 .mode_fifoctrl = 0x2f2f2f2f, 584 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 585 .mode_backlight = 0x00000000, 586 .mode_auxpll = 8, /* 96MHz AUXPLL */ 587 320, 320, 588 240, 240, 589 }, 590 591 [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */ 592 .name = "Toppoly_TD070WGCB2", 593 .monspecs = { 594 .modedb = NULL, 595 .modedb_len = 0, 596 .hfmin = 30000, 597 .hfmax = 70000, 598 .vfmin = 60, 599 .vfmax = 60, 600 .dclkmin = 6000000, 601 .dclkmax = 28000000, 602 .input = FB_DISP_RGB, 603 }, 604 .mode_screen = LCD_SCREEN_SX_N(856) | 605 LCD_SCREEN_SY_N(480), 606 .mode_horztiming = LCD_HORZTIMING_HND2_N(43) | 607 LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114), 608 .mode_verttiming = LCD_VERTTIMING_VND2_N(20) | 609 LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4), 610 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ 611 .mode_pwmdiv = 0x8000063f, 612 .mode_pwmhi = 0x03400000, 613 .mode_outmask = 0x00fcfcfc, 614 .mode_fifoctrl = 0x2f2f2f2f, 615 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 616 .mode_backlight = 0x00000000, 617 .mode_auxpll = 8, /* 96MHz AUXPLL */ 618 856, 856, 619 480, 480, 620 }, 621 [9] = { 622 .name = "DB1300_800x480", 623 .monspecs = { 624 .modedb = NULL, 625 .modedb_len = 0, 626 .hfmin = 30000, 627 .hfmax = 70000, 628 .vfmin = 60, 629 .vfmax = 60, 630 .dclkmin = 6000000, 631 .dclkmax = 28000000, 632 .input = FB_DISP_RGB, 633 }, 634 .mode_screen = LCD_SCREEN_SX_N(800) | 635 LCD_SCREEN_SY_N(480), 636 .mode_horztiming = LCD_HORZTIMING_HPW_N(5) | 637 LCD_HORZTIMING_HND1_N(16) | 638 LCD_HORZTIMING_HND2_N(8), 639 .mode_verttiming = LCD_VERTTIMING_VPW_N(4) | 640 LCD_VERTTIMING_VND1_N(8) | 641 LCD_VERTTIMING_VND2_N(5), 642 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(1) | 643 LCD_CLKCONTROL_IV | 644 LCD_CLKCONTROL_IH, 645 .mode_pwmdiv = 0x00000000, 646 .mode_pwmhi = 0x00000000, 647 .mode_outmask = 0x00FFFFFF, 648 .mode_fifoctrl = 0x2f2f2f2f, 649 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 650 .mode_backlight = 0x00000000, 651 .mode_auxpll = (48/12) * 2, 652 800, 800, 653 480, 480, 654 }, 655 }; 656 657 #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels)) 658 659 /********************************************************************/ 660 661 static int winbpp (unsigned int winctrl1) 662 { 663 int bits = 0; 664 665 /* how many bits are needed for each pixel format */ 666 switch (winctrl1 & LCD_WINCTRL1_FRM) { 667 case LCD_WINCTRL1_FRM_1BPP: 668 bits = 1; 669 break; 670 case LCD_WINCTRL1_FRM_2BPP: 671 bits = 2; 672 break; 673 case LCD_WINCTRL1_FRM_4BPP: 674 bits = 4; 675 break; 676 case LCD_WINCTRL1_FRM_8BPP: 677 bits = 8; 678 break; 679 case LCD_WINCTRL1_FRM_12BPP: 680 case LCD_WINCTRL1_FRM_16BPP655: 681 case LCD_WINCTRL1_FRM_16BPP565: 682 case LCD_WINCTRL1_FRM_16BPP556: 683 case LCD_WINCTRL1_FRM_16BPPI1555: 684 case LCD_WINCTRL1_FRM_16BPPI5551: 685 case LCD_WINCTRL1_FRM_16BPPA1555: 686 case LCD_WINCTRL1_FRM_16BPPA5551: 687 bits = 16; 688 break; 689 case LCD_WINCTRL1_FRM_24BPP: 690 case LCD_WINCTRL1_FRM_32BPP: 691 bits = 32; 692 break; 693 } 694 695 return bits; 696 } 697 698 static int fbinfo2index (struct fb_info *fb_info) 699 { 700 int i; 701 702 for (i = 0; i < device_count; ++i) { 703 if (fb_info == _au1200fb_infos[i]) 704 return i; 705 } 706 printk("au1200fb: ERROR: fbinfo2index failed!\n"); 707 return -1; 708 } 709 710 static int au1200_setlocation (struct au1200fb_device *fbdev, int plane, 711 int xpos, int ypos) 712 { 713 uint32 winctrl0, winctrl1, winenable, fb_offset = 0; 714 int xsz, ysz; 715 716 /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */ 717 718 winctrl0 = lcd->window[plane].winctrl0; 719 winctrl1 = lcd->window[plane].winctrl1; 720 winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN); 721 winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); 722 723 /* Check for off-screen adjustments */ 724 xsz = win->w[plane].xres; 725 ysz = win->w[plane].yres; 726 if ((xpos + win->w[plane].xres) > panel->Xres) { 727 /* Off-screen to the right */ 728 xsz = panel->Xres - xpos; /* off by 1 ??? */ 729 /*printk("off screen right\n");*/ 730 } 731 732 if ((ypos + win->w[plane].yres) > panel->Yres) { 733 /* Off-screen to the bottom */ 734 ysz = panel->Yres - ypos; /* off by 1 ??? */ 735 /*printk("off screen bottom\n");*/ 736 } 737 738 if (xpos < 0) { 739 /* Off-screen to the left */ 740 xsz = win->w[plane].xres + xpos; 741 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8); 742 xpos = 0; 743 /*printk("off screen left\n");*/ 744 } 745 746 if (ypos < 0) { 747 /* Off-screen to the top */ 748 ysz = win->w[plane].yres + ypos; 749 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */ 750 ypos = 0; 751 /*printk("off screen top\n");*/ 752 } 753 754 /* record settings */ 755 win->w[plane].xpos = xpos; 756 win->w[plane].ypos = ypos; 757 758 xsz -= 1; 759 ysz -= 1; 760 winctrl0 |= (xpos << 21); 761 winctrl0 |= (ypos << 10); 762 winctrl1 |= (xsz << 11); 763 winctrl1 |= (ysz << 0); 764 765 /* Disable the window while making changes, then restore WINEN */ 766 winenable = lcd->winenable & (1 << plane); 767 au_sync(); 768 lcd->winenable &= ~(1 << plane); 769 lcd->window[plane].winctrl0 = winctrl0; 770 lcd->window[plane].winctrl1 = winctrl1; 771 lcd->window[plane].winbuf0 = 772 lcd->window[plane].winbuf1 = fbdev->fb_phys; 773 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */ 774 lcd->winenable |= winenable; 775 au_sync(); 776 777 return 0; 778 } 779 780 static void au1200_setpanel(struct panel_settings *newpanel, 781 struct au1200fb_platdata *pd) 782 { 783 /* 784 * Perform global setup/init of LCD controller 785 */ 786 uint32 winenable; 787 788 /* Make sure all windows disabled */ 789 winenable = lcd->winenable; 790 lcd->winenable = 0; 791 au_sync(); 792 /* 793 * Ensure everything is disabled before reconfiguring 794 */ 795 if (lcd->screen & LCD_SCREEN_SEN) { 796 /* Wait for vertical sync period */ 797 lcd->intstatus = LCD_INT_SS; 798 while ((lcd->intstatus & LCD_INT_SS) == 0) { 799 au_sync(); 800 } 801 802 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/ 803 804 do { 805 lcd->intstatus = lcd->intstatus; /*clear interrupts*/ 806 au_sync(); 807 /*wait for controller to shut down*/ 808 } while ((lcd->intstatus & LCD_INT_SD) == 0); 809 810 /* Call shutdown of current panel (if up) */ 811 /* this must occur last, because if an external clock is driving 812 the controller, the clock cannot be turned off before first 813 shutting down the controller. 814 */ 815 if (pd->panel_shutdown) 816 pd->panel_shutdown(); 817 } 818 819 /* Newpanel == NULL indicates a shutdown operation only */ 820 if (newpanel == NULL) 821 return; 822 823 panel = newpanel; 824 825 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres); 826 827 /* 828 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid) 829 */ 830 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT)) 831 { 832 uint32 sys_clksrc; 833 au_writel(panel->mode_auxpll, SYS_AUXPLL); 834 sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f; 835 sys_clksrc |= panel->mode_toyclksrc; 836 au_writel(sys_clksrc, SYS_CLKSRC); 837 } 838 839 /* 840 * Configure panel timings 841 */ 842 lcd->screen = panel->mode_screen; 843 lcd->horztiming = panel->mode_horztiming; 844 lcd->verttiming = panel->mode_verttiming; 845 lcd->clkcontrol = panel->mode_clkcontrol; 846 lcd->pwmdiv = panel->mode_pwmdiv; 847 lcd->pwmhi = panel->mode_pwmhi; 848 lcd->outmask = panel->mode_outmask; 849 lcd->fifoctrl = panel->mode_fifoctrl; 850 au_sync(); 851 852 /* fixme: Check window settings to make sure still valid 853 * for new geometry */ 854 #if 0 855 au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos); 856 au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos); 857 au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos); 858 au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos); 859 #endif 860 lcd->winenable = winenable; 861 862 /* 863 * Re-enable screen now that it is configured 864 */ 865 lcd->screen |= LCD_SCREEN_SEN; 866 au_sync(); 867 868 /* Call init of panel */ 869 if (pd->panel_init) 870 pd->panel_init(); 871 872 /* FIX!!!! not appropriate on panel change!!! Global setup/init */ 873 lcd->intenable = 0; 874 lcd->intstatus = ~0; 875 lcd->backcolor = win->mode_backcolor; 876 877 /* Setup Color Key - FIX!!! */ 878 lcd->colorkey = win->mode_colorkey; 879 lcd->colorkeymsk = win->mode_colorkeymsk; 880 881 /* Setup HWCursor - FIX!!! Need to support this eventually */ 882 lcd->hwc.cursorctrl = 0; 883 lcd->hwc.cursorpos = 0; 884 lcd->hwc.cursorcolor0 = 0; 885 lcd->hwc.cursorcolor1 = 0; 886 lcd->hwc.cursorcolor2 = 0; 887 lcd->hwc.cursorcolor3 = 0; 888 889 890 #if 0 891 #define D(X) printk("%25s: %08X\n", #X, X) 892 D(lcd->screen); 893 D(lcd->horztiming); 894 D(lcd->verttiming); 895 D(lcd->clkcontrol); 896 D(lcd->pwmdiv); 897 D(lcd->pwmhi); 898 D(lcd->outmask); 899 D(lcd->fifoctrl); 900 D(lcd->window[0].winctrl0); 901 D(lcd->window[0].winctrl1); 902 D(lcd->window[0].winctrl2); 903 D(lcd->window[0].winbuf0); 904 D(lcd->window[0].winbuf1); 905 D(lcd->window[0].winbufctrl); 906 D(lcd->window[1].winctrl0); 907 D(lcd->window[1].winctrl1); 908 D(lcd->window[1].winctrl2); 909 D(lcd->window[1].winbuf0); 910 D(lcd->window[1].winbuf1); 911 D(lcd->window[1].winbufctrl); 912 D(lcd->window[2].winctrl0); 913 D(lcd->window[2].winctrl1); 914 D(lcd->window[2].winctrl2); 915 D(lcd->window[2].winbuf0); 916 D(lcd->window[2].winbuf1); 917 D(lcd->window[2].winbufctrl); 918 D(lcd->window[3].winctrl0); 919 D(lcd->window[3].winctrl1); 920 D(lcd->window[3].winctrl2); 921 D(lcd->window[3].winbuf0); 922 D(lcd->window[3].winbuf1); 923 D(lcd->window[3].winbufctrl); 924 D(lcd->winenable); 925 D(lcd->intenable); 926 D(lcd->intstatus); 927 D(lcd->backcolor); 928 D(lcd->winenable); 929 D(lcd->colorkey); 930 D(lcd->colorkeymsk); 931 D(lcd->hwc.cursorctrl); 932 D(lcd->hwc.cursorpos); 933 D(lcd->hwc.cursorcolor0); 934 D(lcd->hwc.cursorcolor1); 935 D(lcd->hwc.cursorcolor2); 936 D(lcd->hwc.cursorcolor3); 937 #endif 938 } 939 940 static void au1200_setmode(struct au1200fb_device *fbdev) 941 { 942 int plane = fbdev->plane; 943 /* Window/plane setup */ 944 lcd->window[plane].winctrl1 = ( 0 945 | LCD_WINCTRL1_PRI_N(plane) 946 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */ 947 ) ; 948 949 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos); 950 951 lcd->window[plane].winctrl2 = ( 0 952 | LCD_WINCTRL2_CKMODE_00 953 | LCD_WINCTRL2_DBM 954 | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length) 955 | LCD_WINCTRL2_SCX_1 956 | LCD_WINCTRL2_SCY_1 957 ) ; 958 lcd->winenable |= win->w[plane].mode_winenable; 959 au_sync(); 960 } 961 962 963 /* Inline helpers */ 964 965 /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ 966 /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ 967 968 #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN) 969 970 /* Bitfields format supported by the controller. */ 971 static struct fb_bitfield rgb_bitfields[][4] = { 972 /* Red, Green, Blue, Transp */ 973 [LCD_WINCTRL1_FRM_16BPP655 >> 25] = 974 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 975 976 [LCD_WINCTRL1_FRM_16BPP565 >> 25] = 977 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 978 979 [LCD_WINCTRL1_FRM_16BPP556 >> 25] = 980 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } }, 981 982 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] = 983 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 984 985 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] = 986 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } }, 987 988 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] = 989 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } }, 990 991 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] = 992 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } }, 993 994 [LCD_WINCTRL1_FRM_24BPP >> 25] = 995 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } }, 996 997 [LCD_WINCTRL1_FRM_32BPP >> 25] = 998 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } }, 999 }; 1000 1001 /*-------------------------------------------------------------------------*/ 1002 1003 /* Helpers */ 1004 1005 static void au1200fb_update_fbinfo(struct fb_info *fbi) 1006 { 1007 /* FIX!!!! This also needs to take the window pixel format into account!!! */ 1008 1009 /* Update var-dependent FB info */ 1010 if (panel_is_color(panel)) { 1011 if (fbi->var.bits_per_pixel <= 8) { 1012 /* palettized */ 1013 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR; 1014 fbi->fix.line_length = fbi->var.xres_virtual / 1015 (8/fbi->var.bits_per_pixel); 1016 } else { 1017 /* non-palettized */ 1018 fbi->fix.visual = FB_VISUAL_TRUECOLOR; 1019 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8); 1020 } 1021 } else { 1022 /* mono FIX!!! mono 8 and 4 bits */ 1023 fbi->fix.visual = FB_VISUAL_MONO10; 1024 fbi->fix.line_length = fbi->var.xres_virtual / 8; 1025 } 1026 1027 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual; 1028 print_dbg("line length: %d\n", fbi->fix.line_length); 1029 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel); 1030 } 1031 1032 /*-------------------------------------------------------------------------*/ 1033 1034 /* AU1200 framebuffer driver */ 1035 1036 /* fb_check_var 1037 * Validate var settings with hardware restrictions and modify it if necessary 1038 */ 1039 static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, 1040 struct fb_info *fbi) 1041 { 1042 struct au1200fb_device *fbdev = fbi->par; 1043 u32 pixclock; 1044 int screen_size, plane; 1045 1046 plane = fbdev->plane; 1047 1048 /* Make sure that the mode respect all LCD controller and 1049 * panel restrictions. */ 1050 var->xres = win->w[plane].xres; 1051 var->yres = win->w[plane].yres; 1052 1053 /* No need for virtual resolution support */ 1054 var->xres_virtual = var->xres; 1055 var->yres_virtual = var->yres; 1056 1057 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1); 1058 1059 screen_size = var->xres_virtual * var->yres_virtual; 1060 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8); 1061 else screen_size /= (8/var->bits_per_pixel); 1062 1063 if (fbdev->fb_len < screen_size) 1064 return -EINVAL; /* Virtual screen is to big, abort */ 1065 1066 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */ 1067 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel 1068 * clock can only be obtain by dividing this value by an even integer. 1069 * Fallback to a slower pixel clock if necessary. */ 1070 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin); 1071 pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2); 1072 1073 if (AU1200_LCD_MAX_CLK % pixclock) { 1074 int diff = AU1200_LCD_MAX_CLK % pixclock; 1075 pixclock -= diff; 1076 } 1077 1078 var->pixclock = KHZ2PICOS(pixclock/1000); 1079 #if 0 1080 if (!panel_is_active(panel)) { 1081 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1; 1082 1083 if (!panel_is_color(panel) 1084 && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) { 1085 /* STN 8bit mono panel support is up to 6MHz pixclock */ 1086 var->pixclock = KHZ2PICOS(6000); 1087 } else if (!pcd) { 1088 /* Other STN panel support is up to 12MHz */ 1089 var->pixclock = KHZ2PICOS(12000); 1090 } 1091 } 1092 #endif 1093 /* Set bitfield accordingly */ 1094 switch (var->bits_per_pixel) { 1095 case 16: 1096 { 1097 /* 16bpp True color. 1098 * These must be set to MATCH WINCTRL[FORM] */ 1099 int idx; 1100 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1101 var->red = rgb_bitfields[idx][0]; 1102 var->green = rgb_bitfields[idx][1]; 1103 var->blue = rgb_bitfields[idx][2]; 1104 var->transp = rgb_bitfields[idx][3]; 1105 break; 1106 } 1107 1108 case 32: 1109 { 1110 /* 32bpp True color. 1111 * These must be set to MATCH WINCTRL[FORM] */ 1112 int idx; 1113 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1114 var->red = rgb_bitfields[idx][0]; 1115 var->green = rgb_bitfields[idx][1]; 1116 var->blue = rgb_bitfields[idx][2]; 1117 var->transp = rgb_bitfields[idx][3]; 1118 break; 1119 } 1120 default: 1121 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel); 1122 return -EINVAL; 1123 } 1124 1125 return 0; 1126 } 1127 1128 /* fb_set_par 1129 * Set hardware with var settings. This will enable the controller with a 1130 * specific mode, normally validated with the fb_check_var method 1131 */ 1132 static int au1200fb_fb_set_par(struct fb_info *fbi) 1133 { 1134 struct au1200fb_device *fbdev = fbi->par; 1135 1136 au1200fb_update_fbinfo(fbi); 1137 au1200_setmode(fbdev); 1138 1139 return 0; 1140 } 1141 1142 /* fb_setcolreg 1143 * Set color in LCD palette. 1144 */ 1145 static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, 1146 unsigned blue, unsigned transp, struct fb_info *fbi) 1147 { 1148 volatile u32 *palette = lcd->palette; 1149 u32 value; 1150 1151 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1)) 1152 return -EINVAL; 1153 1154 if (fbi->var.grayscale) { 1155 /* Convert color to grayscale */ 1156 red = green = blue = 1157 (19595 * red + 38470 * green + 7471 * blue) >> 16; 1158 } 1159 1160 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) { 1161 /* Place color in the pseudopalette */ 1162 if (regno > 16) 1163 return -EINVAL; 1164 1165 palette = (u32*) fbi->pseudo_palette; 1166 1167 red >>= (16 - fbi->var.red.length); 1168 green >>= (16 - fbi->var.green.length); 1169 blue >>= (16 - fbi->var.blue.length); 1170 1171 value = (red << fbi->var.red.offset) | 1172 (green << fbi->var.green.offset)| 1173 (blue << fbi->var.blue.offset); 1174 value &= 0xFFFF; 1175 1176 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) { 1177 /* COLOR TFT PALLETTIZED (use RGB 565) */ 1178 value = (red & 0xF800)|((green >> 5) & 1179 0x07E0)|((blue >> 11) & 0x001F); 1180 value &= 0xFFFF; 1181 1182 } else if (0 /*panel_is_color(fbdev->panel)*/) { 1183 /* COLOR STN MODE */ 1184 value = 0x1234; 1185 value &= 0xFFF; 1186 } else { 1187 /* MONOCHROME MODE */ 1188 value = (green >> 12) & 0x000F; 1189 value &= 0xF; 1190 } 1191 1192 palette[regno] = value; 1193 1194 return 0; 1195 } 1196 1197 /* fb_blank 1198 * Blank the screen. Depending on the mode, the screen will be 1199 * activated with the backlight color, or desactivated 1200 */ 1201 static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) 1202 { 1203 struct au1200fb_device *fbdev = fbi->par; 1204 1205 /* Short-circuit screen blanking */ 1206 if (noblanking) 1207 return 0; 1208 1209 switch (blank_mode) { 1210 1211 case FB_BLANK_UNBLANK: 1212 case FB_BLANK_NORMAL: 1213 /* printk("turn on panel\n"); */ 1214 au1200_setpanel(panel, fbdev->pd); 1215 break; 1216 case FB_BLANK_VSYNC_SUSPEND: 1217 case FB_BLANK_HSYNC_SUSPEND: 1218 case FB_BLANK_POWERDOWN: 1219 /* printk("turn off panel\n"); */ 1220 au1200_setpanel(NULL, fbdev->pd); 1221 break; 1222 default: 1223 break; 1224 1225 } 1226 1227 /* FB_BLANK_NORMAL is a soft blank */ 1228 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0; 1229 } 1230 1231 /* fb_mmap 1232 * Map video memory in user space. We don't use the generic fb_mmap 1233 * method mainly to allow the use of the TLB streaming flag (CCA=6) 1234 */ 1235 static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) 1236 { 1237 struct au1200fb_device *fbdev = info->par; 1238 1239 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 1240 pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */ 1241 1242 return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len); 1243 } 1244 1245 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) 1246 { 1247 1248 unsigned int hi1, divider; 1249 1250 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */ 1251 1252 if (pdata->flags & SCREEN_BACKCOLOR) 1253 lcd->backcolor = pdata->backcolor; 1254 1255 if (pdata->flags & SCREEN_BRIGHTNESS) { 1256 1257 // limit brightness pwm duty to >= 30/1600 1258 if (pdata->brightness < 30) { 1259 pdata->brightness = 30; 1260 } 1261 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 1262 hi1 = (lcd->pwmhi >> 16) + 1; 1263 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8); 1264 lcd->pwmhi &= 0xFFFF; 1265 lcd->pwmhi |= (hi1 << 16); 1266 } 1267 1268 if (pdata->flags & SCREEN_COLORKEY) 1269 lcd->colorkey = pdata->colorkey; 1270 1271 if (pdata->flags & SCREEN_MASK) 1272 lcd->colorkeymsk = pdata->mask; 1273 au_sync(); 1274 } 1275 1276 static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) 1277 { 1278 unsigned int hi1, divider; 1279 1280 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1; 1281 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1; 1282 1283 pdata->backcolor = lcd->backcolor; 1284 pdata->colorkey = lcd->colorkey; 1285 pdata->mask = lcd->colorkeymsk; 1286 1287 // brightness 1288 hi1 = (lcd->pwmhi >> 16) + 1; 1289 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 1290 pdata->brightness = ((hi1 << 8) / divider) - 1; 1291 au_sync(); 1292 } 1293 1294 static void set_window(unsigned int plane, 1295 struct au1200_lcd_window_regs_t *pdata) 1296 { 1297 unsigned int val, bpp; 1298 1299 /* Window control register 0 */ 1300 if (pdata->flags & WIN_POSITION) { 1301 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX | 1302 LCD_WINCTRL0_OY); 1303 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX); 1304 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY); 1305 lcd->window[plane].winctrl0 = val; 1306 } 1307 if (pdata->flags & WIN_ALPHA_COLOR) { 1308 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A); 1309 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A); 1310 lcd->window[plane].winctrl0 = val; 1311 } 1312 if (pdata->flags & WIN_ALPHA_MODE) { 1313 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN); 1314 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN); 1315 lcd->window[plane].winctrl0 = val; 1316 } 1317 1318 /* Window control register 1 */ 1319 if (pdata->flags & WIN_PRIORITY) { 1320 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI); 1321 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI); 1322 lcd->window[plane].winctrl1 = val; 1323 } 1324 if (pdata->flags & WIN_CHANNEL) { 1325 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE); 1326 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE); 1327 lcd->window[plane].winctrl1 = val; 1328 } 1329 if (pdata->flags & WIN_BUFFER_FORMAT) { 1330 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM); 1331 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM); 1332 lcd->window[plane].winctrl1 = val; 1333 } 1334 if (pdata->flags & WIN_COLOR_ORDER) { 1335 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO); 1336 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO); 1337 lcd->window[plane].winctrl1 = val; 1338 } 1339 if (pdata->flags & WIN_PIXEL_ORDER) { 1340 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO); 1341 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO); 1342 lcd->window[plane].winctrl1 = val; 1343 } 1344 if (pdata->flags & WIN_SIZE) { 1345 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX | 1346 LCD_WINCTRL1_SZY); 1347 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX); 1348 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY); 1349 lcd->window[plane].winctrl1 = val; 1350 /* program buffer line width */ 1351 bpp = winbpp(val) / 8; 1352 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX); 1353 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX); 1354 lcd->window[plane].winctrl2 = val; 1355 } 1356 1357 /* Window control register 2 */ 1358 if (pdata->flags & WIN_COLORKEY_MODE) { 1359 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE); 1360 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE); 1361 lcd->window[plane].winctrl2 = val; 1362 } 1363 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) { 1364 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM); 1365 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM); 1366 lcd->window[plane].winctrl2 = val; 1367 } 1368 if (pdata->flags & WIN_RAM_ARRAY_MODE) { 1369 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM); 1370 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM); 1371 lcd->window[plane].winctrl2 = val; 1372 } 1373 1374 /* Buffer line width programmed with WIN_SIZE */ 1375 1376 if (pdata->flags & WIN_BUFFER_SCALE) { 1377 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX | 1378 LCD_WINCTRL2_SCY); 1379 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX); 1380 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY); 1381 lcd->window[plane].winctrl2 = val; 1382 } 1383 1384 if (pdata->flags & WIN_ENABLE) { 1385 val = lcd->winenable; 1386 val &= ~(1<<plane); 1387 val |= (pdata->enable & 1) << plane; 1388 lcd->winenable = val; 1389 } 1390 au_sync(); 1391 } 1392 1393 static void get_window(unsigned int plane, 1394 struct au1200_lcd_window_regs_t *pdata) 1395 { 1396 /* Window control register 0 */ 1397 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21; 1398 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10; 1399 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2; 1400 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1; 1401 1402 /* Window control register 1 */ 1403 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30; 1404 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29; 1405 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1406 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24; 1407 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22; 1408 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1; 1409 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1; 1410 1411 /* Window control register 2 */ 1412 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24; 1413 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23; 1414 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21; 1415 1416 pdata->enable = (lcd->winenable >> plane) & 1; 1417 au_sync(); 1418 } 1419 1420 static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, 1421 unsigned long arg) 1422 { 1423 struct au1200fb_device *fbdev = info->par; 1424 int plane; 1425 int val; 1426 1427 plane = fbinfo2index(info); 1428 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane); 1429 1430 if (cmd == AU1200_LCD_FB_IOCTL) { 1431 struct au1200_lcd_iodata_t iodata; 1432 1433 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata))) 1434 return -EFAULT; 1435 1436 print_dbg("FB IOCTL called\n"); 1437 1438 switch (iodata.subcmd) { 1439 case AU1200_LCD_SET_SCREEN: 1440 print_dbg("AU1200_LCD_SET_SCREEN\n"); 1441 set_global(cmd, &iodata.global); 1442 break; 1443 1444 case AU1200_LCD_GET_SCREEN: 1445 print_dbg("AU1200_LCD_GET_SCREEN\n"); 1446 get_global(cmd, &iodata.global); 1447 break; 1448 1449 case AU1200_LCD_SET_WINDOW: 1450 print_dbg("AU1200_LCD_SET_WINDOW\n"); 1451 set_window(plane, &iodata.window); 1452 break; 1453 1454 case AU1200_LCD_GET_WINDOW: 1455 print_dbg("AU1200_LCD_GET_WINDOW\n"); 1456 get_window(plane, &iodata.window); 1457 break; 1458 1459 case AU1200_LCD_SET_PANEL: 1460 print_dbg("AU1200_LCD_SET_PANEL\n"); 1461 if ((iodata.global.panel_choice >= 0) && 1462 (iodata.global.panel_choice < 1463 NUM_PANELS)) 1464 { 1465 struct panel_settings *newpanel; 1466 panel_index = iodata.global.panel_choice; 1467 newpanel = &known_lcd_panels[panel_index]; 1468 au1200_setpanel(newpanel, fbdev->pd); 1469 } 1470 break; 1471 1472 case AU1200_LCD_GET_PANEL: 1473 print_dbg("AU1200_LCD_GET_PANEL\n"); 1474 iodata.global.panel_choice = panel_index; 1475 break; 1476 1477 default: 1478 return -EINVAL; 1479 } 1480 1481 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata)); 1482 if (val) { 1483 print_dbg("error: could not copy %d bytes\n", val); 1484 return -EFAULT; 1485 } 1486 } 1487 1488 return 0; 1489 } 1490 1491 1492 static struct fb_ops au1200fb_fb_ops = { 1493 .owner = THIS_MODULE, 1494 .fb_check_var = au1200fb_fb_check_var, 1495 .fb_set_par = au1200fb_fb_set_par, 1496 .fb_setcolreg = au1200fb_fb_setcolreg, 1497 .fb_blank = au1200fb_fb_blank, 1498 .fb_fillrect = sys_fillrect, 1499 .fb_copyarea = sys_copyarea, 1500 .fb_imageblit = sys_imageblit, 1501 .fb_read = fb_sys_read, 1502 .fb_write = fb_sys_write, 1503 .fb_sync = NULL, 1504 .fb_ioctl = au1200fb_ioctl, 1505 .fb_mmap = au1200fb_fb_mmap, 1506 }; 1507 1508 /*-------------------------------------------------------------------------*/ 1509 1510 static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) 1511 { 1512 /* Nothing to do for now, just clear any pending interrupt */ 1513 lcd->intstatus = lcd->intstatus; 1514 au_sync(); 1515 1516 return IRQ_HANDLED; 1517 } 1518 1519 /*-------------------------------------------------------------------------*/ 1520 1521 /* AU1200 LCD device probe helpers */ 1522 1523 static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) 1524 { 1525 struct fb_info *fbi = fbdev->fb_info; 1526 int bpp; 1527 1528 fbi->fbops = &au1200fb_fb_ops; 1529 1530 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1); 1531 1532 /* Copy monitor specs from panel data */ 1533 /* fixme: we're setting up LCD controller windows, so these dont give a 1534 damn as to what the monitor specs are (the panel itself does, but that 1535 isn't done here...so maybe need a generic catchall monitor setting??? */ 1536 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs)); 1537 1538 /* We first try the user mode passed in argument. If that failed, 1539 * or if no one has been specified, we default to the first mode of the 1540 * panel list. Note that after this call, var data will be set */ 1541 if (!fb_find_mode(&fbi->var, 1542 fbi, 1543 NULL, /* drv_info.opt_mode, */ 1544 fbi->monspecs.modedb, 1545 fbi->monspecs.modedb_len, 1546 fbi->monspecs.modedb, 1547 bpp)) { 1548 1549 print_err("Cannot find valid mode for panel %s", panel->name); 1550 return -EFAULT; 1551 } 1552 1553 fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL); 1554 if (!fbi->pseudo_palette) { 1555 return -ENOMEM; 1556 } 1557 1558 if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) { 1559 print_err("Fail to allocate colormap (%d entries)", 1560 AU1200_LCD_NBR_PALETTE_ENTRIES); 1561 kfree(fbi->pseudo_palette); 1562 return -EFAULT; 1563 } 1564 1565 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id)); 1566 fbi->fix.smem_start = fbdev->fb_phys; 1567 fbi->fix.smem_len = fbdev->fb_len; 1568 fbi->fix.type = FB_TYPE_PACKED_PIXELS; 1569 fbi->fix.xpanstep = 0; 1570 fbi->fix.ypanstep = 0; 1571 fbi->fix.mmio_start = 0; 1572 fbi->fix.mmio_len = 0; 1573 fbi->fix.accel = FB_ACCEL_NONE; 1574 1575 fbi->screen_base = (char __iomem *) fbdev->fb_mem; 1576 1577 au1200fb_update_fbinfo(fbi); 1578 1579 return 0; 1580 } 1581 1582 /*-------------------------------------------------------------------------*/ 1583 1584 1585 static int au1200fb_setup(struct au1200fb_platdata *pd) 1586 { 1587 char *options = NULL; 1588 char *this_opt, *endptr; 1589 int num_panels = ARRAY_SIZE(known_lcd_panels); 1590 int panel_idx = -1; 1591 1592 fb_get_options(DRIVER_NAME, &options); 1593 1594 if (!options) 1595 goto out; 1596 1597 while ((this_opt = strsep(&options, ",")) != NULL) { 1598 /* Panel option - can be panel name, 1599 * "bs" for board-switch, or number/index */ 1600 if (!strncmp(this_opt, "panel:", 6)) { 1601 int i; 1602 long int li; 1603 char *endptr; 1604 this_opt += 6; 1605 /* First check for index, which allows 1606 * to short circuit this mess */ 1607 li = simple_strtol(this_opt, &endptr, 0); 1608 if (*endptr == '\0') 1609 panel_idx = (int)li; 1610 else if (strcmp(this_opt, "bs") == 0) 1611 panel_idx = pd->panel_index(); 1612 else { 1613 for (i = 0; i < num_panels; i++) { 1614 if (!strcmp(this_opt, 1615 known_lcd_panels[i].name)) { 1616 panel_idx = i; 1617 break; 1618 } 1619 } 1620 } 1621 if ((panel_idx < 0) || (panel_idx >= num_panels)) 1622 print_warn("Panel %s not supported!", this_opt); 1623 else 1624 panel_index = panel_idx; 1625 1626 } else if (strncmp(this_opt, "nohwcursor", 10) == 0) 1627 nohwcursor = 1; 1628 else if (strncmp(this_opt, "devices:", 8) == 0) { 1629 this_opt += 8; 1630 device_count = simple_strtol(this_opt, &endptr, 0); 1631 if ((device_count < 0) || 1632 (device_count > MAX_DEVICE_COUNT)) 1633 device_count = MAX_DEVICE_COUNT; 1634 } else if (strncmp(this_opt, "wincfg:", 7) == 0) { 1635 this_opt += 7; 1636 window_index = simple_strtol(this_opt, &endptr, 0); 1637 if ((window_index < 0) || 1638 (window_index >= ARRAY_SIZE(windows))) 1639 window_index = DEFAULT_WINDOW_INDEX; 1640 } else if (strncmp(this_opt, "off", 3) == 0) 1641 return 1; 1642 else 1643 print_warn("Unsupported option \"%s\"", this_opt); 1644 } 1645 1646 out: 1647 return 0; 1648 } 1649 1650 /* AU1200 LCD controller device driver */ 1651 static int au1200fb_drv_probe(struct platform_device *dev) 1652 { 1653 struct au1200fb_device *fbdev; 1654 struct au1200fb_platdata *pd; 1655 struct fb_info *fbi = NULL; 1656 unsigned long page; 1657 int bpp, plane, ret, irq; 1658 1659 print_info("" DRIVER_DESC ""); 1660 1661 pd = dev->dev.platform_data; 1662 if (!pd) 1663 return -ENODEV; 1664 1665 /* Setup driver with options */ 1666 if (au1200fb_setup(pd)) 1667 return -ENODEV; 1668 1669 /* Point to the panel selected */ 1670 panel = &known_lcd_panels[panel_index]; 1671 win = &windows[window_index]; 1672 1673 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name); 1674 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name); 1675 1676 /* shut gcc up */ 1677 ret = 0; 1678 fbdev = NULL; 1679 1680 for (plane = 0; plane < device_count; ++plane) { 1681 bpp = winbpp(win->w[plane].mode_winctrl1); 1682 if (win->w[plane].xres == 0) 1683 win->w[plane].xres = panel->Xres; 1684 if (win->w[plane].yres == 0) 1685 win->w[plane].yres = panel->Yres; 1686 1687 fbi = framebuffer_alloc(sizeof(struct au1200fb_device), 1688 &dev->dev); 1689 if (!fbi) 1690 goto failed; 1691 1692 _au1200fb_infos[plane] = fbi; 1693 fbdev = fbi->par; 1694 fbdev->fb_info = fbi; 1695 fbdev->pd = pd; 1696 1697 fbdev->plane = plane; 1698 1699 /* Allocate the framebuffer to the maximum screen size */ 1700 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8; 1701 1702 fbdev->fb_mem = dmam_alloc_noncoherent(&dev->dev, 1703 PAGE_ALIGN(fbdev->fb_len), 1704 &fbdev->fb_phys, GFP_KERNEL); 1705 if (!fbdev->fb_mem) { 1706 print_err("fail to allocate frambuffer (size: %dK))", 1707 fbdev->fb_len / 1024); 1708 return -ENOMEM; 1709 } 1710 1711 /* 1712 * Set page reserved so that mmap will work. This is necessary 1713 * since we'll be remapping normal memory. 1714 */ 1715 for (page = (unsigned long)fbdev->fb_phys; 1716 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys + 1717 fbdev->fb_len); 1718 page += PAGE_SIZE) { 1719 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */ 1720 } 1721 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem); 1722 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024); 1723 1724 /* Init FB data */ 1725 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0) 1726 goto failed; 1727 1728 /* Register new framebuffer */ 1729 ret = register_framebuffer(fbi); 1730 if (ret < 0) { 1731 print_err("cannot register new framebuffer"); 1732 goto failed; 1733 } 1734 1735 au1200fb_fb_set_par(fbi); 1736 1737 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO) 1738 if (plane == 0) 1739 if (fb_prepare_logo(fbi, FB_ROTATE_UR)) { 1740 /* Start display and show logo on boot */ 1741 fb_set_cmap(&fbi->cmap, fbi); 1742 fb_show_logo(fbi, FB_ROTATE_UR); 1743 } 1744 #endif 1745 } 1746 1747 /* Now hook interrupt too */ 1748 irq = platform_get_irq(dev, 0); 1749 ret = request_irq(irq, au1200fb_handle_irq, 1750 IRQF_SHARED, "lcd", (void *)dev); 1751 if (ret) { 1752 print_err("fail to request interrupt line %d (err: %d)", 1753 irq, ret); 1754 goto failed; 1755 } 1756 1757 platform_set_drvdata(dev, pd); 1758 1759 /* Kickstart the panel */ 1760 au1200_setpanel(panel, pd); 1761 1762 return 0; 1763 1764 failed: 1765 /* NOTE: This only does the current plane/window that failed; others are still active */ 1766 if (fbi) { 1767 if (fbi->cmap.len != 0) 1768 fb_dealloc_cmap(&fbi->cmap); 1769 kfree(fbi->pseudo_palette); 1770 } 1771 if (plane == 0) 1772 free_irq(AU1200_LCD_INT, (void*)dev); 1773 return ret; 1774 } 1775 1776 static int au1200fb_drv_remove(struct platform_device *dev) 1777 { 1778 struct au1200fb_platdata *pd = platform_get_drvdata(dev); 1779 struct au1200fb_device *fbdev; 1780 struct fb_info *fbi; 1781 int plane; 1782 1783 /* Turn off the panel */ 1784 au1200_setpanel(NULL, pd); 1785 1786 for (plane = 0; plane < device_count; ++plane) { 1787 fbi = _au1200fb_infos[plane]; 1788 fbdev = fbi->par; 1789 1790 /* Clean up all probe data */ 1791 unregister_framebuffer(fbi); 1792 if (fbi->cmap.len != 0) 1793 fb_dealloc_cmap(&fbi->cmap); 1794 kfree(fbi->pseudo_palette); 1795 1796 framebuffer_release(fbi); 1797 _au1200fb_infos[plane] = NULL; 1798 } 1799 1800 free_irq(platform_get_irq(dev, 0), (void *)dev); 1801 1802 return 0; 1803 } 1804 1805 #ifdef CONFIG_PM 1806 static int au1200fb_drv_suspend(struct device *dev) 1807 { 1808 struct au1200fb_platdata *pd = dev_get_drvdata(dev); 1809 au1200_setpanel(NULL, pd); 1810 1811 lcd->outmask = 0; 1812 au_sync(); 1813 1814 return 0; 1815 } 1816 1817 static int au1200fb_drv_resume(struct device *dev) 1818 { 1819 struct au1200fb_platdata *pd = dev_get_drvdata(dev); 1820 struct fb_info *fbi; 1821 int i; 1822 1823 /* Kickstart the panel */ 1824 au1200_setpanel(panel, pd); 1825 1826 for (i = 0; i < device_count; i++) { 1827 fbi = _au1200fb_infos[i]; 1828 au1200fb_fb_set_par(fbi); 1829 } 1830 1831 return 0; 1832 } 1833 1834 static const struct dev_pm_ops au1200fb_pmops = { 1835 .suspend = au1200fb_drv_suspend, 1836 .resume = au1200fb_drv_resume, 1837 .freeze = au1200fb_drv_suspend, 1838 .thaw = au1200fb_drv_resume, 1839 }; 1840 1841 #define AU1200FB_PMOPS (&au1200fb_pmops) 1842 1843 #else 1844 #define AU1200FB_PMOPS NULL 1845 #endif /* CONFIG_PM */ 1846 1847 static struct platform_driver au1200fb_driver = { 1848 .driver = { 1849 .name = "au1200-lcd", 1850 .owner = THIS_MODULE, 1851 .pm = AU1200FB_PMOPS, 1852 }, 1853 .probe = au1200fb_drv_probe, 1854 .remove = au1200fb_drv_remove, 1855 }; 1856 module_platform_driver(au1200fb_driver); 1857 1858 MODULE_DESCRIPTION(DRIVER_DESC); 1859 MODULE_LICENSE("GPL"); 1860