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 45#include <asm/mach-au1x00/au1000.h> 46#include "au1200fb.h" 47 48#ifdef CONFIG_PM 49#include <asm/mach-au1x00/au1xxx_pm.h> 50#endif 51 52#ifndef CONFIG_FB_AU1200_DEVS 53#define CONFIG_FB_AU1200_DEVS 4 54#endif 55 56#define DRIVER_NAME "au1200fb" 57#define DRIVER_DESC "LCD controller driver for AU1200 processors" 58 59#define DEBUG 1 60 61#define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg) 62#define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg) 63#define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg) 64 65#if DEBUG 66#define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg) 67#else 68#define print_dbg(f, arg...) do {} while (0) 69#endif 70 71 72#define AU1200_LCD_FB_IOCTL 0x46FF 73 74#define AU1200_LCD_SET_SCREEN 1 75#define AU1200_LCD_GET_SCREEN 2 76#define AU1200_LCD_SET_WINDOW 3 77#define AU1200_LCD_GET_WINDOW 4 78#define AU1200_LCD_SET_PANEL 5 79#define AU1200_LCD_GET_PANEL 6 80 81#define SCREEN_SIZE (1<< 1) 82#define SCREEN_BACKCOLOR (1<< 2) 83#define SCREEN_BRIGHTNESS (1<< 3) 84#define SCREEN_COLORKEY (1<< 4) 85#define SCREEN_MASK (1<< 5) 86 87struct au1200_lcd_global_regs_t { 88 unsigned int flags; 89 unsigned int xsize; 90 unsigned int ysize; 91 unsigned int backcolor; 92 unsigned int brightness; 93 unsigned int colorkey; 94 unsigned int mask; 95 unsigned int panel_choice; 96 char panel_desc[80]; 97 98}; 99 100#define WIN_POSITION (1<< 0) 101#define WIN_ALPHA_COLOR (1<< 1) 102#define WIN_ALPHA_MODE (1<< 2) 103#define WIN_PRIORITY (1<< 3) 104#define WIN_CHANNEL (1<< 4) 105#define WIN_BUFFER_FORMAT (1<< 5) 106#define WIN_COLOR_ORDER (1<< 6) 107#define WIN_PIXEL_ORDER (1<< 7) 108#define WIN_SIZE (1<< 8) 109#define WIN_COLORKEY_MODE (1<< 9) 110#define WIN_DOUBLE_BUFFER_MODE (1<< 10) 111#define WIN_RAM_ARRAY_MODE (1<< 11) 112#define WIN_BUFFER_SCALE (1<< 12) 113#define WIN_ENABLE (1<< 13) 114 115struct au1200_lcd_window_regs_t { 116 unsigned int flags; 117 unsigned int xpos; 118 unsigned int ypos; 119 unsigned int alpha_color; 120 unsigned int alpha_mode; 121 unsigned int priority; 122 unsigned int channel; 123 unsigned int buffer_format; 124 unsigned int color_order; 125 unsigned int pixel_order; 126 unsigned int xsize; 127 unsigned int ysize; 128 unsigned int colorkey_mode; 129 unsigned int double_buffer_mode; 130 unsigned int ram_array_mode; 131 unsigned int xscale; 132 unsigned int yscale; 133 unsigned int enable; 134}; 135 136 137struct au1200_lcd_iodata_t { 138 unsigned int subcmd; 139 struct au1200_lcd_global_regs_t global; 140 struct au1200_lcd_window_regs_t window; 141}; 142 143#if defined(__BIG_ENDIAN) 144#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11 145#else 146#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00 147#endif 148#define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565 149 150/* Private, per-framebuffer management information (independent of the panel itself) */ 151struct au1200fb_device { 152 struct fb_info fb_info; /* FB driver info record */ 153 154 int plane; 155 unsigned char* fb_mem; /* FrameBuffer memory map */ 156 unsigned int fb_len; 157 dma_addr_t fb_phys; 158}; 159 160static struct au1200fb_device _au1200fb_devices[CONFIG_FB_AU1200_DEVS]; 161/********************************************************************/ 162 163/* LCD controller restrictions */ 164#define AU1200_LCD_MAX_XRES 1280 165#define AU1200_LCD_MAX_YRES 1024 166#define AU1200_LCD_MAX_BPP 32 167#define AU1200_LCD_MAX_CLK 96000000 168#define AU1200_LCD_NBR_PALETTE_ENTRIES 256 169 170/* Default number of visible screen buffer to allocate */ 171#define AU1200FB_NBR_VIDEO_BUFFERS 1 172 173/********************************************************************/ 174 175static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR; 176static int window_index = 2; /* default is zero */ 177static int panel_index = 2; /* default is zero */ 178static struct window_settings *win; 179static struct panel_settings *panel; 180static int noblanking = 1; 181static int nohwcursor = 0; 182 183struct window_settings { 184 unsigned char name[64]; 185 uint32 mode_backcolor; 186 uint32 mode_colorkey; 187 uint32 mode_colorkeymsk; 188 struct { 189 int xres; 190 int yres; 191 int xpos; 192 int ypos; 193 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */ 194 uint32 mode_winenable; 195 } w[4]; 196}; 197 198#if defined(__BIG_ENDIAN) 199#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00 200#else 201#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01 202#endif 203 204extern int board_au1200fb_panel_init (void); 205extern int board_au1200fb_panel_shutdown (void); 206 207#ifdef CONFIG_PM 208int au1200fb_pm_callback(au1xxx_power_dev_t *dev, 209 au1xxx_request_t request, void *data); 210au1xxx_power_dev_t *LCD_pm_dev; 211#endif 212 213/* 214 * Default window configurations 215 */ 216static struct window_settings windows[] = { 217 { /* Index 0 */ 218 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 219 /* mode_backcolor */ 0x006600ff, 220 /* mode_colorkey,msk*/ 0, 0, 221 { 222 { 223 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 224 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 225 LCD_WINCTRL1_PO_16BPP, 226 /* mode_winenable*/ LCD_WINENABLE_WEN0, 227 }, 228 { 229 /* xres, yres, xpos, ypos */ 100, 100, 100, 100, 230 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 231 LCD_WINCTRL1_PO_16BPP | 232 LCD_WINCTRL1_PIPE, 233 /* mode_winenable*/ LCD_WINENABLE_WEN1, 234 }, 235 { 236 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 237 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 238 LCD_WINCTRL1_PO_16BPP, 239 /* mode_winenable*/ 0, 240 }, 241 { 242 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 243 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 244 LCD_WINCTRL1_PO_16BPP | 245 LCD_WINCTRL1_PIPE, 246 /* mode_winenable*/ 0, 247 }, 248 }, 249 }, 250 251 { /* Index 1 */ 252 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 253 /* mode_backcolor */ 0x006600ff, 254 /* mode_colorkey,msk*/ 0, 0, 255 { 256 { 257 /* xres, yres, xpos, ypos */ 320, 240, 5, 5, 258 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP | 259 LCD_WINCTRL1_PO_00, 260 /* mode_winenable*/ LCD_WINENABLE_WEN0, 261 }, 262 { 263 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 264 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 265 | LCD_WINCTRL1_PO_16BPP, 266 /* mode_winenable*/ 0, 267 }, 268 { 269 /* xres, yres, xpos, ypos */ 100, 100, 0, 0, 270 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 271 LCD_WINCTRL1_PO_16BPP | 272 LCD_WINCTRL1_PIPE, 273 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, 274 }, 275 { 276 /* xres, yres, xpos, ypos */ 200, 25, 0, 0, 277 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 278 LCD_WINCTRL1_PO_16BPP | 279 LCD_WINCTRL1_PIPE, 280 /* mode_winenable*/ 0, 281 }, 282 }, 283 }, 284 { /* Index 2 */ 285 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 286 /* mode_backcolor */ 0x006600ff, 287 /* mode_colorkey,msk*/ 0, 0, 288 { 289 { 290 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 291 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 292 LCD_WINCTRL1_PO_16BPP, 293 /* mode_winenable*/ LCD_WINENABLE_WEN0, 294 }, 295 { 296 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 297 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 298 LCD_WINCTRL1_PO_16BPP, 299 /* mode_winenable*/ 0, 300 }, 301 { 302 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 303 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP | 304 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE, 305 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, 306 }, 307 { 308 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 309 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 310 LCD_WINCTRL1_PO_16BPP | 311 LCD_WINCTRL1_PIPE, 312 /* mode_winenable*/ 0, 313 }, 314 }, 315 }, 316 /* Need VGA 640 @ 24bpp, @ 32bpp */ 317 /* Need VGA 800 @ 24bpp, @ 32bpp */ 318 /* Need VGA 1024 @ 24bpp, @ 32bpp */ 319}; 320 321/* 322 * Controller configurations for various panels. 323 */ 324 325struct panel_settings 326{ 327 const char name[25]; /* Full name <vendor>_<model> */ 328 329 struct fb_monspecs monspecs; /* FB monitor specs */ 330 331 /* panel timings */ 332 uint32 mode_screen; 333 uint32 mode_horztiming; 334 uint32 mode_verttiming; 335 uint32 mode_clkcontrol; 336 uint32 mode_pwmdiv; 337 uint32 mode_pwmhi; 338 uint32 mode_outmask; 339 uint32 mode_fifoctrl; 340 uint32 mode_toyclksrc; 341 uint32 mode_backlight; 342 uint32 mode_auxpll; 343 int (*device_init)(void); 344 int (*device_shutdown)(void); 345#define Xres min_xres 346#define Yres min_yres 347 u32 min_xres; /* Minimum horizontal resolution */ 348 u32 max_xres; /* Maximum horizontal resolution */ 349 u32 min_yres; /* Minimum vertical resolution */ 350 u32 max_yres; /* Maximum vertical resolution */ 351}; 352 353/********************************************************************/ 354 355/* List of panels known to work with the AU1200 LCD controller. 356 * To add a new panel, enter the same specifications as the 357 * Generic_TFT one, and MAKE SURE that it doesn't conflicts 358 * with the controller restrictions. Restrictions are: 359 * 360 * STN color panels: max_bpp <= 12 361 * STN mono panels: max_bpp <= 4 362 * TFT panels: max_bpp <= 16 363 * max_xres <= 800 364 * max_yres <= 600 365 */ 366static struct panel_settings known_lcd_panels[] = 367{ 368 [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */ 369 .name = "QVGA_320x240", 370 .monspecs = { 371 .modedb = NULL, 372 .modedb_len = 0, 373 .hfmin = 30000, 374 .hfmax = 70000, 375 .vfmin = 60, 376 .vfmax = 60, 377 .dclkmin = 6000000, 378 .dclkmax = 28000000, 379 .input = FB_DISP_RGB, 380 }, 381 .mode_screen = LCD_SCREEN_SX_N(320) | 382 LCD_SCREEN_SY_N(240), 383 .mode_horztiming = 0x00c4623b, 384 .mode_verttiming = 0x00502814, 385 .mode_clkcontrol = 0x00020002, /* /4=24Mhz */ 386 .mode_pwmdiv = 0x00000000, 387 .mode_pwmhi = 0x00000000, 388 .mode_outmask = 0x00FFFFFF, 389 .mode_fifoctrl = 0x2f2f2f2f, 390 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 391 .mode_backlight = 0x00000000, 392 .mode_auxpll = 8, /* 96MHz AUXPLL */ 393 .device_init = NULL, 394 .device_shutdown = NULL, 395 320, 320, 396 240, 240, 397 }, 398 399 [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */ 400 .name = "VGA_640x480", 401 .monspecs = { 402 .modedb = NULL, 403 .modedb_len = 0, 404 .hfmin = 30000, 405 .hfmax = 70000, 406 .vfmin = 60, 407 .vfmax = 60, 408 .dclkmin = 6000000, 409 .dclkmax = 28000000, 410 .input = FB_DISP_RGB, 411 }, 412 .mode_screen = 0x13f9df80, 413 .mode_horztiming = 0x003c5859, 414 .mode_verttiming = 0x00741201, 415 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ 416 .mode_pwmdiv = 0x00000000, 417 .mode_pwmhi = 0x00000000, 418 .mode_outmask = 0x00FFFFFF, 419 .mode_fifoctrl = 0x2f2f2f2f, 420 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 421 .mode_backlight = 0x00000000, 422 .mode_auxpll = 8, /* 96MHz AUXPLL */ 423 .device_init = NULL, 424 .device_shutdown = NULL, 425 640, 480, 426 640, 480, 427 }, 428 429 [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */ 430 .name = "SVGA_800x600", 431 .monspecs = { 432 .modedb = NULL, 433 .modedb_len = 0, 434 .hfmin = 30000, 435 .hfmax = 70000, 436 .vfmin = 60, 437 .vfmax = 60, 438 .dclkmin = 6000000, 439 .dclkmax = 28000000, 440 .input = FB_DISP_RGB, 441 }, 442 .mode_screen = 0x18fa5780, 443 .mode_horztiming = 0x00dc7e77, 444 .mode_verttiming = 0x00584805, 445 .mode_clkcontrol = 0x00020000, /* /2=48Mhz */ 446 .mode_pwmdiv = 0x00000000, 447 .mode_pwmhi = 0x00000000, 448 .mode_outmask = 0x00FFFFFF, 449 .mode_fifoctrl = 0x2f2f2f2f, 450 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 451 .mode_backlight = 0x00000000, 452 .mode_auxpll = 8, /* 96MHz AUXPLL */ 453 .device_init = NULL, 454 .device_shutdown = NULL, 455 800, 800, 456 600, 600, 457 }, 458 459 [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */ 460 .name = "XVGA_1024x768", 461 .monspecs = { 462 .modedb = NULL, 463 .modedb_len = 0, 464 .hfmin = 30000, 465 .hfmax = 70000, 466 .vfmin = 60, 467 .vfmax = 60, 468 .dclkmin = 6000000, 469 .dclkmax = 28000000, 470 .input = FB_DISP_RGB, 471 }, 472 .mode_screen = 0x1ffaff80, 473 .mode_horztiming = 0x007d0e57, 474 .mode_verttiming = 0x00740a01, 475 .mode_clkcontrol = 0x000A0000, /* /1 */ 476 .mode_pwmdiv = 0x00000000, 477 .mode_pwmhi = 0x00000000, 478 .mode_outmask = 0x00FFFFFF, 479 .mode_fifoctrl = 0x2f2f2f2f, 480 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 481 .mode_backlight = 0x00000000, 482 .mode_auxpll = 6, /* 72MHz AUXPLL */ 483 .device_init = NULL, 484 .device_shutdown = NULL, 485 1024, 1024, 486 768, 768, 487 }, 488 489 [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */ 490 .name = "XVGA_1280x1024", 491 .monspecs = { 492 .modedb = NULL, 493 .modedb_len = 0, 494 .hfmin = 30000, 495 .hfmax = 70000, 496 .vfmin = 60, 497 .vfmax = 60, 498 .dclkmin = 6000000, 499 .dclkmax = 28000000, 500 .input = FB_DISP_RGB, 501 }, 502 .mode_screen = 0x27fbff80, 503 .mode_horztiming = 0x00cdb2c7, 504 .mode_verttiming = 0x00600002, 505 .mode_clkcontrol = 0x000A0000, /* /1 */ 506 .mode_pwmdiv = 0x00000000, 507 .mode_pwmhi = 0x00000000, 508 .mode_outmask = 0x00FFFFFF, 509 .mode_fifoctrl = 0x2f2f2f2f, 510 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 511 .mode_backlight = 0x00000000, 512 .mode_auxpll = 10, /* 120MHz AUXPLL */ 513 .device_init = NULL, 514 .device_shutdown = NULL, 515 1280, 1280, 516 1024, 1024, 517 }, 518 519 [5] = { /* Samsung 1024x768 TFT */ 520 .name = "Samsung_1024x768_TFT", 521 .monspecs = { 522 .modedb = NULL, 523 .modedb_len = 0, 524 .hfmin = 30000, 525 .hfmax = 70000, 526 .vfmin = 60, 527 .vfmax = 60, 528 .dclkmin = 6000000, 529 .dclkmax = 28000000, 530 .input = FB_DISP_RGB, 531 }, 532 .mode_screen = 0x1ffaff80, 533 .mode_horztiming = 0x018cc677, 534 .mode_verttiming = 0x00241217, 535 .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */ 536 .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */ 537 .mode_pwmhi = 0x03400000, /* SCB 0x0 */ 538 .mode_outmask = 0x00FFFFFF, 539 .mode_fifoctrl = 0x2f2f2f2f, 540 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 541 .mode_backlight = 0x00000000, 542 .mode_auxpll = 8, /* 96MHz AUXPLL */ 543 .device_init = board_au1200fb_panel_init, 544 .device_shutdown = board_au1200fb_panel_shutdown, 545 1024, 1024, 546 768, 768, 547 }, 548 549 [6] = { /* Toshiba 640x480 TFT */ 550 .name = "Toshiba_640x480_TFT", 551 .monspecs = { 552 .modedb = NULL, 553 .modedb_len = 0, 554 .hfmin = 30000, 555 .hfmax = 70000, 556 .vfmin = 60, 557 .vfmax = 60, 558 .dclkmin = 6000000, 559 .dclkmax = 28000000, 560 .input = FB_DISP_RGB, 561 }, 562 .mode_screen = LCD_SCREEN_SX_N(640) | 563 LCD_SCREEN_SY_N(480), 564 .mode_horztiming = LCD_HORZTIMING_HPW_N(96) | 565 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51), 566 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | 567 LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32), 568 .mode_clkcontrol = 0x00000000, /* /4=24Mhz */ 569 .mode_pwmdiv = 0x8000063f, 570 .mode_pwmhi = 0x03400000, 571 .mode_outmask = 0x00fcfcfc, 572 .mode_fifoctrl = 0x2f2f2f2f, 573 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 574 .mode_backlight = 0x00000000, 575 .mode_auxpll = 8, /* 96MHz AUXPLL */ 576 .device_init = board_au1200fb_panel_init, 577 .device_shutdown = board_au1200fb_panel_shutdown, 578 640, 480, 579 640, 480, 580 }, 581 582 [7] = { /* Sharp 320x240 TFT */ 583 .name = "Sharp_320x240_TFT", 584 .monspecs = { 585 .modedb = NULL, 586 .modedb_len = 0, 587 .hfmin = 12500, 588 .hfmax = 20000, 589 .vfmin = 38, 590 .vfmax = 81, 591 .dclkmin = 4500000, 592 .dclkmax = 6800000, 593 .input = FB_DISP_RGB, 594 }, 595 .mode_screen = LCD_SCREEN_SX_N(320) | 596 LCD_SCREEN_SY_N(240), 597 .mode_horztiming = LCD_HORZTIMING_HPW_N(60) | 598 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2), 599 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | 600 LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5), 601 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/ 602 .mode_pwmdiv = 0x8000063f, 603 .mode_pwmhi = 0x03400000, 604 .mode_outmask = 0x00fcfcfc, 605 .mode_fifoctrl = 0x2f2f2f2f, 606 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 607 .mode_backlight = 0x00000000, 608 .mode_auxpll = 8, /* 96MHz AUXPLL */ 609 .device_init = board_au1200fb_panel_init, 610 .device_shutdown = board_au1200fb_panel_shutdown, 611 320, 320, 612 240, 240, 613 }, 614 615 [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */ 616 .name = "Toppoly_TD070WGCB2", 617 .monspecs = { 618 .modedb = NULL, 619 .modedb_len = 0, 620 .hfmin = 30000, 621 .hfmax = 70000, 622 .vfmin = 60, 623 .vfmax = 60, 624 .dclkmin = 6000000, 625 .dclkmax = 28000000, 626 .input = FB_DISP_RGB, 627 }, 628 .mode_screen = LCD_SCREEN_SX_N(856) | 629 LCD_SCREEN_SY_N(480), 630 .mode_horztiming = LCD_HORZTIMING_HND2_N(43) | 631 LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114), 632 .mode_verttiming = LCD_VERTTIMING_VND2_N(20) | 633 LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4), 634 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ 635 .mode_pwmdiv = 0x8000063f, 636 .mode_pwmhi = 0x03400000, 637 .mode_outmask = 0x00fcfcfc, 638 .mode_fifoctrl = 0x2f2f2f2f, 639 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ 640 .mode_backlight = 0x00000000, 641 .mode_auxpll = 8, /* 96MHz AUXPLL */ 642 .device_init = board_au1200fb_panel_init, 643 .device_shutdown = board_au1200fb_panel_shutdown, 644 856, 856, 645 480, 480, 646 }, 647}; 648 649#define NUM_PANELS (ARRAY_SIZE(known_lcd_panels)) 650 651/********************************************************************/ 652 653#ifdef CONFIG_PM 654static int set_brightness(unsigned int brightness) 655{ 656 unsigned int hi1, divider; 657 658 /* limit brightness pwm duty to >= 30/1600 */ 659 if (brightness < 30) { 660 brightness = 30; 661 } 662 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 663 hi1 = (lcd->pwmhi >> 16) + 1; 664 hi1 = (((brightness & 0xFF) + 1) * divider >> 8); 665 lcd->pwmhi &= 0xFFFF; 666 lcd->pwmhi |= (hi1 << 16); 667 668 return brightness; 669} 670#endif /* CONFIG_PM */ 671 672static int winbpp (unsigned int winctrl1) 673{ 674 int bits = 0; 675 676 /* how many bits are needed for each pixel format */ 677 switch (winctrl1 & LCD_WINCTRL1_FRM) { 678 case LCD_WINCTRL1_FRM_1BPP: 679 bits = 1; 680 break; 681 case LCD_WINCTRL1_FRM_2BPP: 682 bits = 2; 683 break; 684 case LCD_WINCTRL1_FRM_4BPP: 685 bits = 4; 686 break; 687 case LCD_WINCTRL1_FRM_8BPP: 688 bits = 8; 689 break; 690 case LCD_WINCTRL1_FRM_12BPP: 691 case LCD_WINCTRL1_FRM_16BPP655: 692 case LCD_WINCTRL1_FRM_16BPP565: 693 case LCD_WINCTRL1_FRM_16BPP556: 694 case LCD_WINCTRL1_FRM_16BPPI1555: 695 case LCD_WINCTRL1_FRM_16BPPI5551: 696 case LCD_WINCTRL1_FRM_16BPPA1555: 697 case LCD_WINCTRL1_FRM_16BPPA5551: 698 bits = 16; 699 break; 700 case LCD_WINCTRL1_FRM_24BPP: 701 case LCD_WINCTRL1_FRM_32BPP: 702 bits = 32; 703 break; 704 } 705 706 return bits; 707} 708 709static int fbinfo2index (struct fb_info *fb_info) 710{ 711 int i; 712 713 for (i = 0; i < CONFIG_FB_AU1200_DEVS; ++i) { 714 if (fb_info == (struct fb_info *)(&_au1200fb_devices[i].fb_info)) 715 return i; 716 } 717 printk("au1200fb: ERROR: fbinfo2index failed!\n"); 718 return -1; 719} 720 721static int au1200_setlocation (struct au1200fb_device *fbdev, int plane, 722 int xpos, int ypos) 723{ 724 uint32 winctrl0, winctrl1, winenable, fb_offset = 0; 725 int xsz, ysz; 726 727 /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */ 728 729 winctrl0 = lcd->window[plane].winctrl0; 730 winctrl1 = lcd->window[plane].winctrl1; 731 winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN); 732 winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); 733 734 /* Check for off-screen adjustments */ 735 xsz = win->w[plane].xres; 736 ysz = win->w[plane].yres; 737 if ((xpos + win->w[plane].xres) > panel->Xres) { 738 /* Off-screen to the right */ 739 xsz = panel->Xres - xpos; /* off by 1 ??? */ 740 /*printk("off screen right\n");*/ 741 } 742 743 if ((ypos + win->w[plane].yres) > panel->Yres) { 744 /* Off-screen to the bottom */ 745 ysz = panel->Yres - ypos; /* off by 1 ??? */ 746 /*printk("off screen bottom\n");*/ 747 } 748 749 if (xpos < 0) { 750 /* Off-screen to the left */ 751 xsz = win->w[plane].xres + xpos; 752 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8); 753 xpos = 0; 754 /*printk("off screen left\n");*/ 755 } 756 757 if (ypos < 0) { 758 /* Off-screen to the top */ 759 ysz = win->w[plane].yres + ypos; 760 ypos = 0; 761 /*printk("off screen top\n");*/ 762 } 763 764 /* record settings */ 765 win->w[plane].xpos = xpos; 766 win->w[plane].ypos = ypos; 767 768 xsz -= 1; 769 ysz -= 1; 770 winctrl0 |= (xpos << 21); 771 winctrl0 |= (ypos << 10); 772 winctrl1 |= (xsz << 11); 773 winctrl1 |= (ysz << 0); 774 775 /* Disable the window while making changes, then restore WINEN */ 776 winenable = lcd->winenable & (1 << plane); 777 au_sync(); 778 lcd->winenable &= ~(1 << plane); 779 lcd->window[plane].winctrl0 = winctrl0; 780 lcd->window[plane].winctrl1 = winctrl1; 781 lcd->window[plane].winbuf0 = 782 lcd->window[plane].winbuf1 = fbdev->fb_phys; 783 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */ 784 lcd->winenable |= winenable; 785 au_sync(); 786 787 return 0; 788} 789 790static void au1200_setpanel (struct panel_settings *newpanel) 791{ 792 /* 793 * Perform global setup/init of LCD controller 794 */ 795 uint32 winenable; 796 797 /* Make sure all windows disabled */ 798 winenable = lcd->winenable; 799 lcd->winenable = 0; 800 au_sync(); 801 /* 802 * Ensure everything is disabled before reconfiguring 803 */ 804 if (lcd->screen & LCD_SCREEN_SEN) { 805 /* Wait for vertical sync period */ 806 lcd->intstatus = LCD_INT_SS; 807 while ((lcd->intstatus & LCD_INT_SS) == 0) { 808 au_sync(); 809 } 810 811 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/ 812 813 do { 814 lcd->intstatus = lcd->intstatus; /*clear interrupts*/ 815 au_sync(); 816 /*wait for controller to shut down*/ 817 } while ((lcd->intstatus & LCD_INT_SD) == 0); 818 819 /* Call shutdown of current panel (if up) */ 820 /* this must occur last, because if an external clock is driving 821 the controller, the clock cannot be turned off before first 822 shutting down the controller. 823 */ 824 if (panel->device_shutdown != NULL) 825 panel->device_shutdown(); 826 } 827 828 /* Newpanel == NULL indicates a shutdown operation only */ 829 if (newpanel == NULL) 830 return; 831 832 panel = newpanel; 833 834 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres); 835 836 /* 837 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid) 838 */ 839 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT)) 840 { 841 uint32 sys_clksrc; 842 au_writel(panel->mode_auxpll, SYS_AUXPLL); 843 sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f; 844 sys_clksrc |= panel->mode_toyclksrc; 845 au_writel(sys_clksrc, SYS_CLKSRC); 846 } 847 848 /* 849 * Configure panel timings 850 */ 851 lcd->screen = panel->mode_screen; 852 lcd->horztiming = panel->mode_horztiming; 853 lcd->verttiming = panel->mode_verttiming; 854 lcd->clkcontrol = panel->mode_clkcontrol; 855 lcd->pwmdiv = panel->mode_pwmdiv; 856 lcd->pwmhi = panel->mode_pwmhi; 857 lcd->outmask = panel->mode_outmask; 858 lcd->fifoctrl = panel->mode_fifoctrl; 859 au_sync(); 860 861 lcd->winenable = winenable; 862 863 /* 864 * Re-enable screen now that it is configured 865 */ 866 lcd->screen |= LCD_SCREEN_SEN; 867 au_sync(); 868 869 /* Call init of panel */ 870 if (panel->device_init != NULL) panel->device_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} 891 892static void au1200_setmode(struct au1200fb_device *fbdev) 893{ 894 int plane = fbdev->plane; 895 /* Window/plane setup */ 896 lcd->window[plane].winctrl1 = ( 0 897 | LCD_WINCTRL1_PRI_N(plane) 898 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */ 899 ) ; 900 901 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos); 902 903 lcd->window[plane].winctrl2 = ( 0 904 | LCD_WINCTRL2_CKMODE_00 905 | LCD_WINCTRL2_DBM 906 | LCD_WINCTRL2_BX_N( fbdev->fb_info.fix.line_length) 907 | LCD_WINCTRL2_SCX_1 908 | LCD_WINCTRL2_SCY_1 909 ) ; 910 lcd->winenable |= win->w[plane].mode_winenable; 911 au_sync(); 912} 913 914 915/* Inline helpers */ 916 917/*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ 918/*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ 919 920#define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN) 921 922/* Bitfields format supported by the controller. */ 923static struct fb_bitfield rgb_bitfields[][4] = { 924 /* Red, Green, Blue, Transp */ 925 [LCD_WINCTRL1_FRM_16BPP655 >> 25] = 926 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 927 928 [LCD_WINCTRL1_FRM_16BPP565 >> 25] = 929 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 930 931 [LCD_WINCTRL1_FRM_16BPP556 >> 25] = 932 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } }, 933 934 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] = 935 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 936 937 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] = 938 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } }, 939 940 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] = 941 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } }, 942 943 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] = 944 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } }, 945 946 [LCD_WINCTRL1_FRM_24BPP >> 25] = 947 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } }, 948 949 [LCD_WINCTRL1_FRM_32BPP >> 25] = 950 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } }, 951}; 952 953/*-------------------------------------------------------------------------*/ 954 955/* Helpers */ 956 957static void au1200fb_update_fbinfo(struct fb_info *fbi) 958{ 959 /* FIX!!!! This also needs to take the window pixel format into account!!! */ 960 961 /* Update var-dependent FB info */ 962 if (panel_is_color(panel)) { 963 if (fbi->var.bits_per_pixel <= 8) { 964 /* palettized */ 965 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR; 966 fbi->fix.line_length = fbi->var.xres_virtual / 967 (8/fbi->var.bits_per_pixel); 968 } else { 969 /* non-palettized */ 970 fbi->fix.visual = FB_VISUAL_TRUECOLOR; 971 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8); 972 } 973 } else { 974 /* mono FIX!!! mono 8 and 4 bits */ 975 fbi->fix.visual = FB_VISUAL_MONO10; 976 fbi->fix.line_length = fbi->var.xres_virtual / 8; 977 } 978 979 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual; 980 print_dbg("line length: %d\n", fbi->fix.line_length); 981 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel); 982} 983 984/*-------------------------------------------------------------------------*/ 985 986/* AU1200 framebuffer driver */ 987 988/* fb_check_var 989 * Validate var settings with hardware restrictions and modify it if necessary 990 */ 991static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, 992 struct fb_info *fbi) 993{ 994 struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi; 995 u32 pixclock; 996 int screen_size, plane; 997 998 plane = fbdev->plane; 999 1000 /* Make sure that the mode respect all LCD controller and 1001 * panel restrictions. */ 1002 var->xres = win->w[plane].xres; 1003 var->yres = win->w[plane].yres; 1004 1005 /* No need for virtual resolution support */ 1006 var->xres_virtual = var->xres; 1007 var->yres_virtual = var->yres; 1008 1009 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1); 1010 1011 screen_size = var->xres_virtual * var->yres_virtual; 1012 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8); 1013 else screen_size /= (8/var->bits_per_pixel); 1014 1015 if (fbdev->fb_len < screen_size) 1016 return -EINVAL; /* Virtual screen is to big, abort */ 1017 1018 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */ 1019 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel 1020 * clock can only be obtain by dividing this value by an even integer. 1021 * Fallback to a slower pixel clock if necessary. */ 1022 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin); 1023 pixclock = min(pixclock, min(fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2)); 1024 1025 if (AU1200_LCD_MAX_CLK % pixclock) { 1026 int diff = AU1200_LCD_MAX_CLK % pixclock; 1027 pixclock -= diff; 1028 } 1029 1030 var->pixclock = KHZ2PICOS(pixclock/1000); 1031 /* Set bitfield accordingly */ 1032 switch (var->bits_per_pixel) { 1033 case 16: 1034 { 1035 /* 16bpp True color. 1036 * These must be set to MATCH WINCTRL[FORM] */ 1037 int idx; 1038 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1039 var->red = rgb_bitfields[idx][0]; 1040 var->green = rgb_bitfields[idx][1]; 1041 var->blue = rgb_bitfields[idx][2]; 1042 var->transp = rgb_bitfields[idx][3]; 1043 break; 1044 } 1045 1046 case 32: 1047 { 1048 /* 32bpp True color. 1049 * These must be set to MATCH WINCTRL[FORM] */ 1050 int idx; 1051 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1052 var->red = rgb_bitfields[idx][0]; 1053 var->green = rgb_bitfields[idx][1]; 1054 var->blue = rgb_bitfields[idx][2]; 1055 var->transp = rgb_bitfields[idx][3]; 1056 break; 1057 } 1058 default: 1059 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel); 1060 return -EINVAL; 1061 } 1062 1063 return 0; 1064} 1065 1066/* fb_set_par 1067 * Set hardware with var settings. This will enable the controller with a 1068 * specific mode, normally validated with the fb_check_var method 1069 */ 1070static int au1200fb_fb_set_par(struct fb_info *fbi) 1071{ 1072 struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi; 1073 1074 au1200fb_update_fbinfo(fbi); 1075 au1200_setmode(fbdev); 1076 1077 return 0; 1078} 1079 1080/* fb_setcolreg 1081 * Set color in LCD palette. 1082 */ 1083static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, 1084 unsigned blue, unsigned transp, struct fb_info *fbi) 1085{ 1086 volatile u32 *palette = lcd->palette; 1087 u32 value; 1088 1089 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1)) 1090 return -EINVAL; 1091 1092 if (fbi->var.grayscale) { 1093 /* Convert color to grayscale */ 1094 red = green = blue = 1095 (19595 * red + 38470 * green + 7471 * blue) >> 16; 1096 } 1097 1098 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) { 1099 /* Place color in the pseudopalette */ 1100 if (regno > 16) 1101 return -EINVAL; 1102 1103 palette = (u32*) fbi->pseudo_palette; 1104 1105 red >>= (16 - fbi->var.red.length); 1106 green >>= (16 - fbi->var.green.length); 1107 blue >>= (16 - fbi->var.blue.length); 1108 1109 value = (red << fbi->var.red.offset) | 1110 (green << fbi->var.green.offset)| 1111 (blue << fbi->var.blue.offset); 1112 value &= 0xFFFF; 1113 1114 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) { 1115 /* COLOR TFT PALLETTIZED (use RGB 565) */ 1116 value = (red & 0xF800)|((green >> 5) & 1117 0x07E0)|((blue >> 11) & 0x001F); 1118 value &= 0xFFFF; 1119 1120 } else if (0 /*panel_is_color(fbdev->panel)*/) { 1121 /* COLOR STN MODE */ 1122 value = 0x1234; 1123 value &= 0xFFF; 1124 } else { 1125 /* MONOCHROME MODE */ 1126 value = (green >> 12) & 0x000F; 1127 value &= 0xF; 1128 } 1129 1130 palette[regno] = value; 1131 1132 return 0; 1133} 1134 1135/* fb_blank 1136 * Blank the screen. Depending on the mode, the screen will be 1137 * activated with the backlight color, or desactivated 1138 */ 1139static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) 1140{ 1141 /* Short-circuit screen blanking */ 1142 if (noblanking) 1143 return 0; 1144 1145 switch (blank_mode) { 1146 1147 case FB_BLANK_UNBLANK: 1148 case FB_BLANK_NORMAL: 1149 /* printk("turn on panel\n"); */ 1150 au1200_setpanel(panel); 1151 break; 1152 case FB_BLANK_VSYNC_SUSPEND: 1153 case FB_BLANK_HSYNC_SUSPEND: 1154 case FB_BLANK_POWERDOWN: 1155 /* printk("turn off panel\n"); */ 1156 au1200_setpanel(NULL); 1157 break; 1158 default: 1159 break; 1160 1161 } 1162 1163 /* FB_BLANK_NORMAL is a soft blank */ 1164 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0; 1165} 1166 1167/* fb_mmap 1168 * Map video memory in user space. We don't use the generic fb_mmap 1169 * method mainly to allow the use of the TLB streaming flag (CCA=6) 1170 */ 1171static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) 1172 1173{ 1174 unsigned int len; 1175 unsigned long start=0, off; 1176 struct au1200fb_device *fbdev = (struct au1200fb_device *) info; 1177 1178#ifdef CONFIG_PM 1179 au1xxx_pm_access(LCD_pm_dev); 1180#endif 1181 1182 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) { 1183 return -EINVAL; 1184 } 1185 1186 start = fbdev->fb_phys & PAGE_MASK; 1187 len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len); 1188 1189 off = vma->vm_pgoff << PAGE_SHIFT; 1190 1191 if ((vma->vm_end - vma->vm_start + off) > len) { 1192 return -EINVAL; 1193 } 1194 1195 off += start; 1196 vma->vm_pgoff = off >> PAGE_SHIFT; 1197 1198 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 1199 pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */ 1200 1201 vma->vm_flags |= VM_IO; 1202 1203 return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, 1204 vma->vm_end - vma->vm_start, 1205 vma->vm_page_prot); 1206 1207 return 0; 1208} 1209 1210static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) 1211{ 1212 1213 unsigned int hi1, divider; 1214 1215 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */ 1216 1217 if (pdata->flags & SCREEN_BACKCOLOR) 1218 lcd->backcolor = pdata->backcolor; 1219 1220 if (pdata->flags & SCREEN_BRIGHTNESS) { 1221 1222 // limit brightness pwm duty to >= 30/1600 1223 if (pdata->brightness < 30) { 1224 pdata->brightness = 30; 1225 } 1226 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 1227 hi1 = (lcd->pwmhi >> 16) + 1; 1228 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8); 1229 lcd->pwmhi &= 0xFFFF; 1230 lcd->pwmhi |= (hi1 << 16); 1231 } 1232 1233 if (pdata->flags & SCREEN_COLORKEY) 1234 lcd->colorkey = pdata->colorkey; 1235 1236 if (pdata->flags & SCREEN_MASK) 1237 lcd->colorkeymsk = pdata->mask; 1238 au_sync(); 1239} 1240 1241static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) 1242{ 1243 unsigned int hi1, divider; 1244 1245 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1; 1246 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1; 1247 1248 pdata->backcolor = lcd->backcolor; 1249 pdata->colorkey = lcd->colorkey; 1250 pdata->mask = lcd->colorkeymsk; 1251 1252 // brightness 1253 hi1 = (lcd->pwmhi >> 16) + 1; 1254 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 1255 pdata->brightness = ((hi1 << 8) / divider) - 1; 1256 au_sync(); 1257} 1258 1259static void set_window(unsigned int plane, 1260 struct au1200_lcd_window_regs_t *pdata) 1261{ 1262 unsigned int val, bpp; 1263 1264 /* Window control register 0 */ 1265 if (pdata->flags & WIN_POSITION) { 1266 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX | 1267 LCD_WINCTRL0_OY); 1268 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX); 1269 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY); 1270 lcd->window[plane].winctrl0 = val; 1271 } 1272 if (pdata->flags & WIN_ALPHA_COLOR) { 1273 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A); 1274 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A); 1275 lcd->window[plane].winctrl0 = val; 1276 } 1277 if (pdata->flags & WIN_ALPHA_MODE) { 1278 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN); 1279 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN); 1280 lcd->window[plane].winctrl0 = val; 1281 } 1282 1283 /* Window control register 1 */ 1284 if (pdata->flags & WIN_PRIORITY) { 1285 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI); 1286 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI); 1287 lcd->window[plane].winctrl1 = val; 1288 } 1289 if (pdata->flags & WIN_CHANNEL) { 1290 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE); 1291 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE); 1292 lcd->window[plane].winctrl1 = val; 1293 } 1294 if (pdata->flags & WIN_BUFFER_FORMAT) { 1295 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM); 1296 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM); 1297 lcd->window[plane].winctrl1 = val; 1298 } 1299 if (pdata->flags & WIN_COLOR_ORDER) { 1300 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO); 1301 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO); 1302 lcd->window[plane].winctrl1 = val; 1303 } 1304 if (pdata->flags & WIN_PIXEL_ORDER) { 1305 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO); 1306 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO); 1307 lcd->window[plane].winctrl1 = val; 1308 } 1309 if (pdata->flags & WIN_SIZE) { 1310 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX | 1311 LCD_WINCTRL1_SZY); 1312 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX); 1313 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY); 1314 lcd->window[plane].winctrl1 = val; 1315 /* program buffer line width */ 1316 bpp = winbpp(val) / 8; 1317 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX); 1318 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX); 1319 lcd->window[plane].winctrl2 = val; 1320 } 1321 1322 /* Window control register 2 */ 1323 if (pdata->flags & WIN_COLORKEY_MODE) { 1324 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE); 1325 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE); 1326 lcd->window[plane].winctrl2 = val; 1327 } 1328 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) { 1329 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM); 1330 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM); 1331 lcd->window[plane].winctrl2 = val; 1332 } 1333 if (pdata->flags & WIN_RAM_ARRAY_MODE) { 1334 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM); 1335 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM); 1336 lcd->window[plane].winctrl2 = val; 1337 } 1338 1339 /* Buffer line width programmed with WIN_SIZE */ 1340 1341 if (pdata->flags & WIN_BUFFER_SCALE) { 1342 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX | 1343 LCD_WINCTRL2_SCY); 1344 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX); 1345 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY); 1346 lcd->window[plane].winctrl2 = val; 1347 } 1348 1349 if (pdata->flags & WIN_ENABLE) { 1350 val = lcd->winenable; 1351 val &= ~(1<<plane); 1352 val |= (pdata->enable & 1) << plane; 1353 lcd->winenable = val; 1354 } 1355 au_sync(); 1356} 1357 1358static void get_window(unsigned int plane, 1359 struct au1200_lcd_window_regs_t *pdata) 1360{ 1361 /* Window control register 0 */ 1362 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21; 1363 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10; 1364 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2; 1365 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1; 1366 1367 /* Window control register 1 */ 1368 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30; 1369 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29; 1370 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1371 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24; 1372 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22; 1373 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1; 1374 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1; 1375 1376 /* Window control register 2 */ 1377 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24; 1378 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23; 1379 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21; 1380 1381 pdata->enable = (lcd->winenable >> plane) & 1; 1382 au_sync(); 1383} 1384 1385static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, 1386 unsigned long arg) 1387{ 1388 int plane; 1389 int val; 1390 1391#ifdef CONFIG_PM 1392 au1xxx_pm_access(LCD_pm_dev); 1393#endif 1394 1395 plane = fbinfo2index(info); 1396 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane); 1397 1398 if (cmd == AU1200_LCD_FB_IOCTL) { 1399 struct au1200_lcd_iodata_t iodata; 1400 1401 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata))) 1402 return -EFAULT; 1403 1404 print_dbg("FB IOCTL called\n"); 1405 1406 switch (iodata.subcmd) { 1407 case AU1200_LCD_SET_SCREEN: 1408 print_dbg("AU1200_LCD_SET_SCREEN\n"); 1409 set_global(cmd, &iodata.global); 1410 break; 1411 1412 case AU1200_LCD_GET_SCREEN: 1413 print_dbg("AU1200_LCD_GET_SCREEN\n"); 1414 get_global(cmd, &iodata.global); 1415 break; 1416 1417 case AU1200_LCD_SET_WINDOW: 1418 print_dbg("AU1200_LCD_SET_WINDOW\n"); 1419 set_window(plane, &iodata.window); 1420 break; 1421 1422 case AU1200_LCD_GET_WINDOW: 1423 print_dbg("AU1200_LCD_GET_WINDOW\n"); 1424 get_window(plane, &iodata.window); 1425 break; 1426 1427 case AU1200_LCD_SET_PANEL: 1428 print_dbg("AU1200_LCD_SET_PANEL\n"); 1429 if ((iodata.global.panel_choice >= 0) && 1430 (iodata.global.panel_choice < 1431 NUM_PANELS)) 1432 { 1433 struct panel_settings *newpanel; 1434 panel_index = iodata.global.panel_choice; 1435 newpanel = &known_lcd_panels[panel_index]; 1436 au1200_setpanel(newpanel); 1437 } 1438 break; 1439 1440 case AU1200_LCD_GET_PANEL: 1441 print_dbg("AU1200_LCD_GET_PANEL\n"); 1442 iodata.global.panel_choice = panel_index; 1443 break; 1444 1445 default: 1446 return -EINVAL; 1447 } 1448 1449 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata)); 1450 if (val) { 1451 print_dbg("error: could not copy %d bytes\n", val); 1452 return -EFAULT; 1453 } 1454 } 1455 1456 return 0; 1457} 1458 1459 1460static struct fb_ops au1200fb_fb_ops = { 1461 .owner = THIS_MODULE, 1462 .fb_check_var = au1200fb_fb_check_var, 1463 .fb_set_par = au1200fb_fb_set_par, 1464 .fb_setcolreg = au1200fb_fb_setcolreg, 1465 .fb_blank = au1200fb_fb_blank, 1466 .fb_fillrect = cfb_fillrect, 1467 .fb_copyarea = cfb_copyarea, 1468 .fb_imageblit = cfb_imageblit, 1469 .fb_sync = NULL, 1470 .fb_ioctl = au1200fb_ioctl, 1471 .fb_mmap = au1200fb_fb_mmap, 1472}; 1473 1474/*-------------------------------------------------------------------------*/ 1475 1476static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) 1477{ 1478 /* Nothing to do for now, just clear any pending interrupt */ 1479 lcd->intstatus = lcd->intstatus; 1480 au_sync(); 1481 1482 return IRQ_HANDLED; 1483} 1484 1485/*-------------------------------------------------------------------------*/ 1486 1487/* AU1200 LCD device probe helpers */ 1488 1489static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) 1490{ 1491 struct fb_info *fbi = &fbdev->fb_info; 1492 int bpp; 1493 1494 memset(fbi, 0, sizeof(struct fb_info)); 1495 fbi->fbops = &au1200fb_fb_ops; 1496 1497 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1); 1498 1499 /* Copy monitor specs from panel data */ 1500 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs)); 1501 1502 /* We first try the user mode passed in argument. If that failed, 1503 * or if no one has been specified, we default to the first mode of the 1504 * panel list. Note that after this call, var data will be set */ 1505 if (!fb_find_mode(&fbi->var, 1506 fbi, 1507 NULL, /* drv_info.opt_mode, */ 1508 fbi->monspecs.modedb, 1509 fbi->monspecs.modedb_len, 1510 fbi->monspecs.modedb, 1511 bpp)) { 1512 1513 print_err("Cannot find valid mode for panel %s", panel->name); 1514 return -EFAULT; 1515 } 1516 1517 fbi->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL); 1518 if (!fbi->pseudo_palette) { 1519 return -ENOMEM; 1520 } 1521 memset(fbi->pseudo_palette, 0, sizeof(u32) * 16); 1522 1523 if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) { 1524 print_err("Fail to allocate colormap (%d entries)", 1525 AU1200_LCD_NBR_PALETTE_ENTRIES); 1526 kfree(fbi->pseudo_palette); 1527 return -EFAULT; 1528 } 1529 1530 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id)); 1531 fbi->fix.smem_start = fbdev->fb_phys; 1532 fbi->fix.smem_len = fbdev->fb_len; 1533 fbi->fix.type = FB_TYPE_PACKED_PIXELS; 1534 fbi->fix.xpanstep = 0; 1535 fbi->fix.ypanstep = 0; 1536 fbi->fix.mmio_start = 0; 1537 fbi->fix.mmio_len = 0; 1538 fbi->fix.accel = FB_ACCEL_NONE; 1539 1540 fbi->screen_base = (char __iomem *) fbdev->fb_mem; 1541 1542 au1200fb_update_fbinfo(fbi); 1543 1544 return 0; 1545} 1546 1547/*-------------------------------------------------------------------------*/ 1548 1549/* AU1200 LCD controller device driver */ 1550 1551static int au1200fb_drv_probe(struct device *dev) 1552{ 1553 struct au1200fb_device *fbdev; 1554 unsigned long page; 1555 int bpp, plane, ret; 1556 1557 if (!dev) 1558 return -EINVAL; 1559 1560 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) { 1561 bpp = winbpp(win->w[plane].mode_winctrl1); 1562 if (win->w[plane].xres == 0) 1563 win->w[plane].xres = panel->Xres; 1564 if (win->w[plane].yres == 0) 1565 win->w[plane].yres = panel->Yres; 1566 1567 fbdev = &_au1200fb_devices[plane]; 1568 memset(fbdev, 0, sizeof(struct au1200fb_device)); 1569 fbdev->plane = plane; 1570 1571 /* Allocate the framebuffer to the maximum screen size */ 1572 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8; 1573 1574 fbdev->fb_mem = dma_alloc_noncoherent(dev, 1575 PAGE_ALIGN(fbdev->fb_len), 1576 &fbdev->fb_phys, GFP_KERNEL); 1577 if (!fbdev->fb_mem) { 1578 print_err("fail to allocate frambuffer (size: %dK))", 1579 fbdev->fb_len / 1024); 1580 return -ENOMEM; 1581 } 1582 1583 /* 1584 * Set page reserved so that mmap will work. This is necessary 1585 * since we'll be remapping normal memory. 1586 */ 1587 for (page = (unsigned long)fbdev->fb_phys; 1588 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys + 1589 fbdev->fb_len); 1590 page += PAGE_SIZE) { 1591 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */ 1592 } 1593 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem); 1594 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024); 1595 1596 /* Init FB data */ 1597 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0) 1598 goto failed; 1599 1600 /* Register new framebuffer */ 1601 if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) { 1602 print_err("cannot register new framebuffer"); 1603 goto failed; 1604 } 1605 1606 au1200fb_fb_set_par(&fbdev->fb_info); 1607 1608#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO) 1609 if (plane == 0) 1610 if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) { 1611 /* Start display and show logo on boot */ 1612 fb_set_cmap(&fbdev->fb_info.cmap, 1613 &fbdev->fb_info); 1614 1615 fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR); 1616 } 1617#endif 1618 } 1619 1620 /* Now hook interrupt too */ 1621 if ((ret = request_irq(AU1200_LCD_INT, au1200fb_handle_irq, 1622 IRQF_DISABLED | IRQF_SHARED, "lcd", (void *)dev)) < 0) { 1623 print_err("fail to request interrupt line %d (err: %d)", 1624 AU1200_LCD_INT, ret); 1625 goto failed; 1626 } 1627 1628 return 0; 1629 1630failed: 1631 /* NOTE: This only does the current plane/window that failed; others are still active */ 1632 if (fbdev->fb_mem) 1633 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len), 1634 fbdev->fb_mem, fbdev->fb_phys); 1635 if (fbdev->fb_info.cmap.len != 0) 1636 fb_dealloc_cmap(&fbdev->fb_info.cmap); 1637 if (fbdev->fb_info.pseudo_palette) 1638 kfree(fbdev->fb_info.pseudo_palette); 1639 if (plane == 0) 1640 free_irq(AU1200_LCD_INT, (void*)dev); 1641 return ret; 1642} 1643 1644static int au1200fb_drv_remove(struct device *dev) 1645{ 1646 struct au1200fb_device *fbdev; 1647 int plane; 1648 1649 if (!dev) 1650 return -ENODEV; 1651 1652 /* Turn off the panel */ 1653 au1200_setpanel(NULL); 1654 1655 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) 1656 { 1657 fbdev = &_au1200fb_devices[plane]; 1658 1659 /* Clean up all probe data */ 1660 unregister_framebuffer(&fbdev->fb_info); 1661 if (fbdev->fb_mem) 1662 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len), 1663 fbdev->fb_mem, fbdev->fb_phys); 1664 if (fbdev->fb_info.cmap.len != 0) 1665 fb_dealloc_cmap(&fbdev->fb_info.cmap); 1666 if (fbdev->fb_info.pseudo_palette) 1667 kfree(fbdev->fb_info.pseudo_palette); 1668 } 1669 1670 free_irq(AU1200_LCD_INT, (void *)dev); 1671 1672 return 0; 1673} 1674 1675#ifdef CONFIG_PM 1676static int au1200fb_drv_suspend(struct device *dev, u32 state, u32 level) 1677{ 1678 /* TODO */ 1679 return 0; 1680} 1681 1682static int au1200fb_drv_resume(struct device *dev, u32 level) 1683{ 1684 /* TODO */ 1685 return 0; 1686} 1687#endif /* CONFIG_PM */ 1688 1689static struct device_driver au1200fb_driver = { 1690 .name = "au1200-lcd", 1691 .bus = &platform_bus_type, 1692 .probe = au1200fb_drv_probe, 1693 .remove = au1200fb_drv_remove, 1694#ifdef CONFIG_PM 1695 .suspend = au1200fb_drv_suspend, 1696 .resume = au1200fb_drv_resume, 1697#endif 1698}; 1699 1700/*-------------------------------------------------------------------------*/ 1701 1702/* Kernel driver */ 1703 1704static void au1200fb_setup(void) 1705{ 1706 char* options = NULL; 1707 char* this_opt; 1708 int num_panels = ARRAY_SIZE(known_lcd_panels); 1709 int panel_idx = -1; 1710 1711 fb_get_options(DRIVER_NAME, &options); 1712 1713 if (options) { 1714 while ((this_opt = strsep(&options,",")) != NULL) { 1715 /* Panel option - can be panel name, 1716 * "bs" for board-switch, or number/index */ 1717 if (!strncmp(this_opt, "panel:", 6)) { 1718 int i; 1719 long int li; 1720 char *endptr; 1721 this_opt += 6; 1722 /* First check for index, which allows 1723 * to short circuit this mess */ 1724 li = simple_strtol(this_opt, &endptr, 0); 1725 if (*endptr == '\0') { 1726 panel_idx = (int)li; 1727 } 1728 else if (strcmp(this_opt, "bs") == 0) { 1729 extern int board_au1200fb_panel(void); 1730 panel_idx = board_au1200fb_panel(); 1731 } 1732 1733 else 1734 for (i = 0; i < num_panels; i++) { 1735 if (!strcmp(this_opt, known_lcd_panels[i].name)) { 1736 panel_idx = i; 1737 break; 1738 } 1739 } 1740 1741 if ((panel_idx < 0) || (panel_idx >= num_panels)) { 1742 print_warn("Panel %s not supported!", this_opt); 1743 } 1744 else 1745 panel_index = panel_idx; 1746 } 1747 1748 else if (strncmp(this_opt, "nohwcursor", 10) == 0) { 1749 nohwcursor = 1; 1750 } 1751 1752 /* Unsupported option */ 1753 else { 1754 print_warn("Unsupported option \"%s\"", this_opt); 1755 } 1756 } 1757 } 1758} 1759 1760#ifdef CONFIG_PM 1761static int au1200fb_pm_callback(au1xxx_power_dev_t *dev, 1762 au1xxx_request_t request, void *data) { 1763 int retval = -1; 1764 unsigned int d = 0; 1765 unsigned int brightness = 0; 1766 1767 if (request == AU1XXX_PM_SLEEP) { 1768 board_au1200fb_panel_shutdown(); 1769 } 1770 else if (request == AU1XXX_PM_WAKEUP) { 1771 if(dev->prev_state == SLEEP_STATE) 1772 { 1773 int plane; 1774 au1200_setpanel(panel); 1775 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) { 1776 struct au1200fb_device *fbdev; 1777 fbdev = &_au1200fb_devices[plane]; 1778 au1200fb_fb_set_par(&fbdev->fb_info); 1779 } 1780 } 1781 1782 d = *((unsigned int*)data); 1783 if(d <=10) brightness = 26; 1784 else if(d<=20) brightness = 51; 1785 else if(d<=30) brightness = 77; 1786 else if(d<=40) brightness = 102; 1787 else if(d<=50) brightness = 128; 1788 else if(d<=60) brightness = 153; 1789 else if(d<=70) brightness = 179; 1790 else if(d<=80) brightness = 204; 1791 else if(d<=90) brightness = 230; 1792 else brightness = 255; 1793 set_brightness(brightness); 1794 } else if (request == AU1XXX_PM_GETSTATUS) { 1795 return dev->cur_state; 1796 } else if (request == AU1XXX_PM_ACCESS) { 1797 if (dev->cur_state != SLEEP_STATE) 1798 return retval; 1799 else { 1800 au1200_setpanel(panel); 1801 } 1802 } else if (request == AU1XXX_PM_IDLE) { 1803 } else if (request == AU1XXX_PM_CLEANUP) { 1804 } 1805 1806 return retval; 1807} 1808#endif 1809 1810static int __init au1200fb_init(void) 1811{ 1812 print_info("" DRIVER_DESC ""); 1813 1814 /* Setup driver with options */ 1815 au1200fb_setup(); 1816 1817 /* Point to the panel selected */ 1818 panel = &known_lcd_panels[panel_index]; 1819 win = &windows[window_index]; 1820 1821 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name); 1822 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name); 1823 1824 /* Kickstart the panel, the framebuffers/windows come soon enough */ 1825 au1200_setpanel(panel); 1826 1827 #ifdef CONFIG_PM 1828 LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL); 1829 if ( LCD_pm_dev == NULL) 1830 printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n"); 1831 else 1832 printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n"); 1833 #endif 1834 1835 return driver_register(&au1200fb_driver); 1836} 1837 1838static void __exit au1200fb_cleanup(void) 1839{ 1840 driver_unregister(&au1200fb_driver); 1841} 1842 1843module_init(au1200fb_init); 1844module_exit(au1200fb_cleanup); 1845 1846MODULE_DESCRIPTION(DRIVER_DESC); 1847MODULE_LICENSE("GPL"); 1848