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/clk.h> 34 #include <linux/module.h> 35 #include <linux/platform_device.h> 36 #include <linux/kernel.h> 37 #include <linux/errno.h> 38 #include <linux/string.h> 39 #include <linux/mm.h> 40 #include <linux/fb.h> 41 #include <linux/init.h> 42 #include <linux/interrupt.h> 43 #include <linux/ctype.h> 44 #include <linux/dma-mapping.h> 45 #include <linux/slab.h> 46 #include <linux/uaccess.h> 47 48 #include <asm/mach-au1x00/au1000.h> 49 #include <asm/mach-au1x00/au1200fb.h> /* platform_data */ 50 #include "au1200fb.h" 51 52 #define DRIVER_NAME "au1200fb" 53 #define DRIVER_DESC "LCD controller driver for AU1200 processors" 54 55 #define DEBUG 0 56 57 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg) 58 #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg) 59 #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg) 60 61 #if DEBUG 62 #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg) 63 #else 64 #define print_dbg(f, arg...) do {} while (0) 65 #endif 66 67 68 #define AU1200_LCD_FB_IOCTL 0x46FF 69 70 #define AU1200_LCD_SET_SCREEN 1 71 #define AU1200_LCD_GET_SCREEN 2 72 #define AU1200_LCD_SET_WINDOW 3 73 #define AU1200_LCD_GET_WINDOW 4 74 #define AU1200_LCD_SET_PANEL 5 75 #define AU1200_LCD_GET_PANEL 6 76 77 #define SCREEN_SIZE (1<< 1) 78 #define SCREEN_BACKCOLOR (1<< 2) 79 #define SCREEN_BRIGHTNESS (1<< 3) 80 #define SCREEN_COLORKEY (1<< 4) 81 #define SCREEN_MASK (1<< 5) 82 83 struct au1200_lcd_global_regs_t { 84 unsigned int flags; 85 unsigned int xsize; 86 unsigned int ysize; 87 unsigned int backcolor; 88 unsigned int brightness; 89 unsigned int colorkey; 90 unsigned int mask; 91 unsigned int panel_choice; 92 char panel_desc[80]; 93 94 }; 95 96 #define WIN_POSITION (1<< 0) 97 #define WIN_ALPHA_COLOR (1<< 1) 98 #define WIN_ALPHA_MODE (1<< 2) 99 #define WIN_PRIORITY (1<< 3) 100 #define WIN_CHANNEL (1<< 4) 101 #define WIN_BUFFER_FORMAT (1<< 5) 102 #define WIN_COLOR_ORDER (1<< 6) 103 #define WIN_PIXEL_ORDER (1<< 7) 104 #define WIN_SIZE (1<< 8) 105 #define WIN_COLORKEY_MODE (1<< 9) 106 #define WIN_DOUBLE_BUFFER_MODE (1<< 10) 107 #define WIN_RAM_ARRAY_MODE (1<< 11) 108 #define WIN_BUFFER_SCALE (1<< 12) 109 #define WIN_ENABLE (1<< 13) 110 111 struct au1200_lcd_window_regs_t { 112 unsigned int flags; 113 unsigned int xpos; 114 unsigned int ypos; 115 unsigned int alpha_color; 116 unsigned int alpha_mode; 117 unsigned int priority; 118 unsigned int channel; 119 unsigned int buffer_format; 120 unsigned int color_order; 121 unsigned int pixel_order; 122 unsigned int xsize; 123 unsigned int ysize; 124 unsigned int colorkey_mode; 125 unsigned int double_buffer_mode; 126 unsigned int ram_array_mode; 127 unsigned int xscale; 128 unsigned int yscale; 129 unsigned int enable; 130 }; 131 132 133 struct au1200_lcd_iodata_t { 134 unsigned int subcmd; 135 struct au1200_lcd_global_regs_t global; 136 struct au1200_lcd_window_regs_t window; 137 }; 138 139 #if defined(__BIG_ENDIAN) 140 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11 141 #else 142 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00 143 #endif 144 #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565 145 146 /* Private, per-framebuffer management information (independent of the panel itself) */ 147 struct au1200fb_device { 148 struct fb_info *fb_info; /* FB driver info record */ 149 struct au1200fb_platdata *pd; 150 151 int plane; 152 unsigned char* fb_mem; /* FrameBuffer memory map */ 153 unsigned int fb_len; 154 dma_addr_t fb_phys; 155 }; 156 157 /********************************************************************/ 158 159 /* LCD controller restrictions */ 160 #define AU1200_LCD_MAX_XRES 1280 161 #define AU1200_LCD_MAX_YRES 1024 162 #define AU1200_LCD_MAX_BPP 32 163 #define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */ 164 #define AU1200_LCD_NBR_PALETTE_ENTRIES 256 165 166 /* Default number of visible screen buffer to allocate */ 167 #define AU1200FB_NBR_VIDEO_BUFFERS 1 168 169 /* Default maximum number of fb devices to create */ 170 #define MAX_DEVICE_COUNT 4 171 172 /* Default window configuration entry to use (see windows[]) */ 173 #define DEFAULT_WINDOW_INDEX 2 174 175 /********************************************************************/ 176 177 static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT]; 178 static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR; 179 static int device_count = MAX_DEVICE_COUNT; 180 static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */ 181 static int panel_index = 2; /* default is zero */ 182 static struct window_settings *win; 183 static struct panel_settings *panel; 184 static int noblanking = 1; 185 static int nohwcursor = 0; 186 187 struct window_settings { 188 unsigned char name[64]; 189 uint32 mode_backcolor; 190 uint32 mode_colorkey; 191 uint32 mode_colorkeymsk; 192 struct { 193 int xres; 194 int yres; 195 int xpos; 196 int ypos; 197 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */ 198 uint32 mode_winenable; 199 } w[4]; 200 }; 201 202 #if defined(__BIG_ENDIAN) 203 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00 204 #else 205 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01 206 #endif 207 208 /* 209 * Default window configurations 210 */ 211 static struct window_settings windows[] = { 212 { /* Index 0 */ 213 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 214 /* mode_backcolor */ 0x006600ff, 215 /* mode_colorkey,msk*/ 0, 0, 216 { 217 { 218 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 219 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 220 LCD_WINCTRL1_PO_16BPP, 221 /* mode_winenable*/ LCD_WINENABLE_WEN0, 222 }, 223 { 224 /* xres, yres, xpos, ypos */ 100, 100, 100, 100, 225 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 226 LCD_WINCTRL1_PO_16BPP | 227 LCD_WINCTRL1_PIPE, 228 /* mode_winenable*/ LCD_WINENABLE_WEN1, 229 }, 230 { 231 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 232 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 233 LCD_WINCTRL1_PO_16BPP, 234 /* mode_winenable*/ 0, 235 }, 236 { 237 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 238 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 239 LCD_WINCTRL1_PO_16BPP | 240 LCD_WINCTRL1_PIPE, 241 /* mode_winenable*/ 0, 242 }, 243 }, 244 }, 245 246 { /* Index 1 */ 247 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 248 /* mode_backcolor */ 0x006600ff, 249 /* mode_colorkey,msk*/ 0, 0, 250 { 251 { 252 /* xres, yres, xpos, ypos */ 320, 240, 5, 5, 253 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP | 254 LCD_WINCTRL1_PO_00, 255 /* mode_winenable*/ LCD_WINENABLE_WEN0, 256 }, 257 { 258 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 259 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 260 | LCD_WINCTRL1_PO_16BPP, 261 /* mode_winenable*/ 0, 262 }, 263 { 264 /* xres, yres, xpos, ypos */ 100, 100, 0, 0, 265 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 266 LCD_WINCTRL1_PO_16BPP | 267 LCD_WINCTRL1_PIPE, 268 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, 269 }, 270 { 271 /* xres, yres, xpos, ypos */ 200, 25, 0, 0, 272 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 273 LCD_WINCTRL1_PO_16BPP | 274 LCD_WINCTRL1_PIPE, 275 /* mode_winenable*/ 0, 276 }, 277 }, 278 }, 279 { /* Index 2 */ 280 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 281 /* mode_backcolor */ 0x006600ff, 282 /* mode_colorkey,msk*/ 0, 0, 283 { 284 { 285 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 286 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 287 LCD_WINCTRL1_PO_16BPP, 288 /* mode_winenable*/ LCD_WINENABLE_WEN0, 289 }, 290 { 291 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 292 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 293 LCD_WINCTRL1_PO_16BPP, 294 /* mode_winenable*/ 0, 295 }, 296 { 297 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 298 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP | 299 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE, 300 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, 301 }, 302 { 303 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 304 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 305 LCD_WINCTRL1_PO_16BPP | 306 LCD_WINCTRL1_PIPE, 307 /* mode_winenable*/ 0, 308 }, 309 }, 310 }, 311 /* Need VGA 640 @ 24bpp, @ 32bpp */ 312 /* Need VGA 800 @ 24bpp, @ 32bpp */ 313 /* Need VGA 1024 @ 24bpp, @ 32bpp */ 314 }; 315 316 /* 317 * Controller configurations for various panels. 318 */ 319 320 struct panel_settings 321 { 322 const char name[25]; /* Full name <vendor>_<model> */ 323 324 struct fb_monspecs monspecs; /* FB monitor specs */ 325 326 /* panel timings */ 327 uint32 mode_screen; 328 uint32 mode_horztiming; 329 uint32 mode_verttiming; 330 uint32 mode_clkcontrol; 331 uint32 mode_pwmdiv; 332 uint32 mode_pwmhi; 333 uint32 mode_outmask; 334 uint32 mode_fifoctrl; 335 uint32 mode_backlight; 336 uint32 lcdclk; 337 #define Xres min_xres 338 #define Yres min_yres 339 u32 min_xres; /* Minimum horizontal resolution */ 340 u32 max_xres; /* Maximum horizontal resolution */ 341 u32 min_yres; /* Minimum vertical resolution */ 342 u32 max_yres; /* Maximum vertical resolution */ 343 }; 344 345 /********************************************************************/ 346 /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */ 347 348 /* List of panels known to work with the AU1200 LCD controller. 349 * To add a new panel, enter the same specifications as the 350 * Generic_TFT one, and MAKE SURE that it doesn't conflicts 351 * with the controller restrictions. Restrictions are: 352 * 353 * STN color panels: max_bpp <= 12 354 * STN mono panels: max_bpp <= 4 355 * TFT panels: max_bpp <= 16 356 * max_xres <= 800 357 * max_yres <= 600 358 */ 359 static struct panel_settings known_lcd_panels[] = 360 { 361 [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */ 362 .name = "QVGA_320x240", 363 .monspecs = { 364 .modedb = NULL, 365 .modedb_len = 0, 366 .hfmin = 30000, 367 .hfmax = 70000, 368 .vfmin = 60, 369 .vfmax = 60, 370 .dclkmin = 6000000, 371 .dclkmax = 28000000, 372 .input = FB_DISP_RGB, 373 }, 374 .mode_screen = LCD_SCREEN_SX_N(320) | 375 LCD_SCREEN_SY_N(240), 376 .mode_horztiming = 0x00c4623b, 377 .mode_verttiming = 0x00502814, 378 .mode_clkcontrol = 0x00020002, /* /4=24Mhz */ 379 .mode_pwmdiv = 0x00000000, 380 .mode_pwmhi = 0x00000000, 381 .mode_outmask = 0x00FFFFFF, 382 .mode_fifoctrl = 0x2f2f2f2f, 383 .mode_backlight = 0x00000000, 384 .lcdclk = 96, 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_backlight = 0x00000000, 411 .lcdclk = 96, 412 640, 480, 413 640, 480, 414 }, 415 416 [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */ 417 .name = "SVGA_800x600", 418 .monspecs = { 419 .modedb = NULL, 420 .modedb_len = 0, 421 .hfmin = 30000, 422 .hfmax = 70000, 423 .vfmin = 60, 424 .vfmax = 60, 425 .dclkmin = 6000000, 426 .dclkmax = 28000000, 427 .input = FB_DISP_RGB, 428 }, 429 .mode_screen = 0x18fa5780, 430 .mode_horztiming = 0x00dc7e77, 431 .mode_verttiming = 0x00584805, 432 .mode_clkcontrol = 0x00020000, /* /2=48Mhz */ 433 .mode_pwmdiv = 0x00000000, 434 .mode_pwmhi = 0x00000000, 435 .mode_outmask = 0x00FFFFFF, 436 .mode_fifoctrl = 0x2f2f2f2f, 437 .mode_backlight = 0x00000000, 438 .lcdclk = 96, 439 800, 800, 440 600, 600, 441 }, 442 443 [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */ 444 .name = "XVGA_1024x768", 445 .monspecs = { 446 .modedb = NULL, 447 .modedb_len = 0, 448 .hfmin = 30000, 449 .hfmax = 70000, 450 .vfmin = 60, 451 .vfmax = 60, 452 .dclkmin = 6000000, 453 .dclkmax = 28000000, 454 .input = FB_DISP_RGB, 455 }, 456 .mode_screen = 0x1ffaff80, 457 .mode_horztiming = 0x007d0e57, 458 .mode_verttiming = 0x00740a01, 459 .mode_clkcontrol = 0x000A0000, /* /1 */ 460 .mode_pwmdiv = 0x00000000, 461 .mode_pwmhi = 0x00000000, 462 .mode_outmask = 0x00FFFFFF, 463 .mode_fifoctrl = 0x2f2f2f2f, 464 .mode_backlight = 0x00000000, 465 .lcdclk = 72, 466 1024, 1024, 467 768, 768, 468 }, 469 470 [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */ 471 .name = "XVGA_1280x1024", 472 .monspecs = { 473 .modedb = NULL, 474 .modedb_len = 0, 475 .hfmin = 30000, 476 .hfmax = 70000, 477 .vfmin = 60, 478 .vfmax = 60, 479 .dclkmin = 6000000, 480 .dclkmax = 28000000, 481 .input = FB_DISP_RGB, 482 }, 483 .mode_screen = 0x27fbff80, 484 .mode_horztiming = 0x00cdb2c7, 485 .mode_verttiming = 0x00600002, 486 .mode_clkcontrol = 0x000A0000, /* /1 */ 487 .mode_pwmdiv = 0x00000000, 488 .mode_pwmhi = 0x00000000, 489 .mode_outmask = 0x00FFFFFF, 490 .mode_fifoctrl = 0x2f2f2f2f, 491 .mode_backlight = 0x00000000, 492 .lcdclk = 120, 493 1280, 1280, 494 1024, 1024, 495 }, 496 497 [5] = { /* Samsung 1024x768 TFT */ 498 .name = "Samsung_1024x768_TFT", 499 .monspecs = { 500 .modedb = NULL, 501 .modedb_len = 0, 502 .hfmin = 30000, 503 .hfmax = 70000, 504 .vfmin = 60, 505 .vfmax = 60, 506 .dclkmin = 6000000, 507 .dclkmax = 28000000, 508 .input = FB_DISP_RGB, 509 }, 510 .mode_screen = 0x1ffaff80, 511 .mode_horztiming = 0x018cc677, 512 .mode_verttiming = 0x00241217, 513 .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */ 514 .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */ 515 .mode_pwmhi = 0x03400000, /* SCB 0x0 */ 516 .mode_outmask = 0x00FFFFFF, 517 .mode_fifoctrl = 0x2f2f2f2f, 518 .mode_backlight = 0x00000000, 519 .lcdclk = 96, 520 1024, 1024, 521 768, 768, 522 }, 523 524 [6] = { /* Toshiba 640x480 TFT */ 525 .name = "Toshiba_640x480_TFT", 526 .monspecs = { 527 .modedb = NULL, 528 .modedb_len = 0, 529 .hfmin = 30000, 530 .hfmax = 70000, 531 .vfmin = 60, 532 .vfmax = 60, 533 .dclkmin = 6000000, 534 .dclkmax = 28000000, 535 .input = FB_DISP_RGB, 536 }, 537 .mode_screen = LCD_SCREEN_SX_N(640) | 538 LCD_SCREEN_SY_N(480), 539 .mode_horztiming = LCD_HORZTIMING_HPW_N(96) | 540 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51), 541 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | 542 LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32), 543 .mode_clkcontrol = 0x00000000, /* /4=24Mhz */ 544 .mode_pwmdiv = 0x8000063f, 545 .mode_pwmhi = 0x03400000, 546 .mode_outmask = 0x00fcfcfc, 547 .mode_fifoctrl = 0x2f2f2f2f, 548 .mode_backlight = 0x00000000, 549 .lcdclk = 96, 550 640, 480, 551 640, 480, 552 }, 553 554 [7] = { /* Sharp 320x240 TFT */ 555 .name = "Sharp_320x240_TFT", 556 .monspecs = { 557 .modedb = NULL, 558 .modedb_len = 0, 559 .hfmin = 12500, 560 .hfmax = 20000, 561 .vfmin = 38, 562 .vfmax = 81, 563 .dclkmin = 4500000, 564 .dclkmax = 6800000, 565 .input = FB_DISP_RGB, 566 }, 567 .mode_screen = LCD_SCREEN_SX_N(320) | 568 LCD_SCREEN_SY_N(240), 569 .mode_horztiming = LCD_HORZTIMING_HPW_N(60) | 570 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2), 571 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | 572 LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5), 573 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/ 574 .mode_pwmdiv = 0x8000063f, 575 .mode_pwmhi = 0x03400000, 576 .mode_outmask = 0x00fcfcfc, 577 .mode_fifoctrl = 0x2f2f2f2f, 578 .mode_backlight = 0x00000000, 579 .lcdclk = 96, /* 96MHz AUXPLL */ 580 320, 320, 581 240, 240, 582 }, 583 584 [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */ 585 .name = "Toppoly_TD070WGCB2", 586 .monspecs = { 587 .modedb = NULL, 588 .modedb_len = 0, 589 .hfmin = 30000, 590 .hfmax = 70000, 591 .vfmin = 60, 592 .vfmax = 60, 593 .dclkmin = 6000000, 594 .dclkmax = 28000000, 595 .input = FB_DISP_RGB, 596 }, 597 .mode_screen = LCD_SCREEN_SX_N(856) | 598 LCD_SCREEN_SY_N(480), 599 .mode_horztiming = LCD_HORZTIMING_HND2_N(43) | 600 LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114), 601 .mode_verttiming = LCD_VERTTIMING_VND2_N(20) | 602 LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4), 603 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ 604 .mode_pwmdiv = 0x8000063f, 605 .mode_pwmhi = 0x03400000, 606 .mode_outmask = 0x00fcfcfc, 607 .mode_fifoctrl = 0x2f2f2f2f, 608 .mode_backlight = 0x00000000, 609 .lcdclk = 96, 610 856, 856, 611 480, 480, 612 }, 613 [9] = { 614 .name = "DB1300_800x480", 615 .monspecs = { 616 .modedb = NULL, 617 .modedb_len = 0, 618 .hfmin = 30000, 619 .hfmax = 70000, 620 .vfmin = 60, 621 .vfmax = 60, 622 .dclkmin = 6000000, 623 .dclkmax = 28000000, 624 .input = FB_DISP_RGB, 625 }, 626 .mode_screen = LCD_SCREEN_SX_N(800) | 627 LCD_SCREEN_SY_N(480), 628 .mode_horztiming = LCD_HORZTIMING_HPW_N(5) | 629 LCD_HORZTIMING_HND1_N(16) | 630 LCD_HORZTIMING_HND2_N(8), 631 .mode_verttiming = LCD_VERTTIMING_VPW_N(4) | 632 LCD_VERTTIMING_VND1_N(8) | 633 LCD_VERTTIMING_VND2_N(5), 634 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(1) | 635 LCD_CLKCONTROL_IV | 636 LCD_CLKCONTROL_IH, 637 .mode_pwmdiv = 0x00000000, 638 .mode_pwmhi = 0x00000000, 639 .mode_outmask = 0x00FFFFFF, 640 .mode_fifoctrl = 0x2f2f2f2f, 641 .mode_backlight = 0x00000000, 642 .lcdclk = 96, 643 800, 800, 644 480, 480, 645 }, 646 }; 647 648 #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels)) 649 650 /********************************************************************/ 651 652 static int winbpp (unsigned int winctrl1) 653 { 654 int bits = 0; 655 656 /* how many bits are needed for each pixel format */ 657 switch (winctrl1 & LCD_WINCTRL1_FRM) { 658 case LCD_WINCTRL1_FRM_1BPP: 659 bits = 1; 660 break; 661 case LCD_WINCTRL1_FRM_2BPP: 662 bits = 2; 663 break; 664 case LCD_WINCTRL1_FRM_4BPP: 665 bits = 4; 666 break; 667 case LCD_WINCTRL1_FRM_8BPP: 668 bits = 8; 669 break; 670 case LCD_WINCTRL1_FRM_12BPP: 671 case LCD_WINCTRL1_FRM_16BPP655: 672 case LCD_WINCTRL1_FRM_16BPP565: 673 case LCD_WINCTRL1_FRM_16BPP556: 674 case LCD_WINCTRL1_FRM_16BPPI1555: 675 case LCD_WINCTRL1_FRM_16BPPI5551: 676 case LCD_WINCTRL1_FRM_16BPPA1555: 677 case LCD_WINCTRL1_FRM_16BPPA5551: 678 bits = 16; 679 break; 680 case LCD_WINCTRL1_FRM_24BPP: 681 case LCD_WINCTRL1_FRM_32BPP: 682 bits = 32; 683 break; 684 } 685 686 return bits; 687 } 688 689 static int fbinfo2index (struct fb_info *fb_info) 690 { 691 int i; 692 693 for (i = 0; i < device_count; ++i) { 694 if (fb_info == _au1200fb_infos[i]) 695 return i; 696 } 697 printk("au1200fb: ERROR: fbinfo2index failed!\n"); 698 return -1; 699 } 700 701 static int au1200_setlocation (struct au1200fb_device *fbdev, int plane, 702 int xpos, int ypos) 703 { 704 uint32 winctrl0, winctrl1, winenable, fb_offset = 0; 705 int xsz, ysz; 706 707 /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */ 708 709 winctrl0 = lcd->window[plane].winctrl0; 710 winctrl1 = lcd->window[plane].winctrl1; 711 winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN); 712 winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); 713 714 /* Check for off-screen adjustments */ 715 xsz = win->w[plane].xres; 716 ysz = win->w[plane].yres; 717 if ((xpos + win->w[plane].xres) > panel->Xres) { 718 /* Off-screen to the right */ 719 xsz = panel->Xres - xpos; /* off by 1 ??? */ 720 /*printk("off screen right\n");*/ 721 } 722 723 if ((ypos + win->w[plane].yres) > panel->Yres) { 724 /* Off-screen to the bottom */ 725 ysz = panel->Yres - ypos; /* off by 1 ??? */ 726 /*printk("off screen bottom\n");*/ 727 } 728 729 if (xpos < 0) { 730 /* Off-screen to the left */ 731 xsz = win->w[plane].xres + xpos; 732 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8); 733 xpos = 0; 734 /*printk("off screen left\n");*/ 735 } 736 737 if (ypos < 0) { 738 /* Off-screen to the top */ 739 ysz = win->w[plane].yres + ypos; 740 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */ 741 ypos = 0; 742 /*printk("off screen top\n");*/ 743 } 744 745 /* record settings */ 746 win->w[plane].xpos = xpos; 747 win->w[plane].ypos = ypos; 748 749 xsz -= 1; 750 ysz -= 1; 751 winctrl0 |= (xpos << 21); 752 winctrl0 |= (ypos << 10); 753 winctrl1 |= (xsz << 11); 754 winctrl1 |= (ysz << 0); 755 756 /* Disable the window while making changes, then restore WINEN */ 757 winenable = lcd->winenable & (1 << plane); 758 wmb(); /* drain writebuffer */ 759 lcd->winenable &= ~(1 << plane); 760 lcd->window[plane].winctrl0 = winctrl0; 761 lcd->window[plane].winctrl1 = winctrl1; 762 lcd->window[plane].winbuf0 = 763 lcd->window[plane].winbuf1 = fbdev->fb_phys; 764 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */ 765 lcd->winenable |= winenable; 766 wmb(); /* drain writebuffer */ 767 768 return 0; 769 } 770 771 static void au1200_setpanel(struct panel_settings *newpanel, 772 struct au1200fb_platdata *pd) 773 { 774 /* 775 * Perform global setup/init of LCD controller 776 */ 777 uint32 winenable; 778 779 /* Make sure all windows disabled */ 780 winenable = lcd->winenable; 781 lcd->winenable = 0; 782 wmb(); /* drain writebuffer */ 783 /* 784 * Ensure everything is disabled before reconfiguring 785 */ 786 if (lcd->screen & LCD_SCREEN_SEN) { 787 /* Wait for vertical sync period */ 788 lcd->intstatus = LCD_INT_SS; 789 while ((lcd->intstatus & LCD_INT_SS) == 0) 790 ; 791 792 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/ 793 794 do { 795 lcd->intstatus = lcd->intstatus; /*clear interrupts*/ 796 wmb(); /* drain writebuffer */ 797 /*wait for controller to shut down*/ 798 } while ((lcd->intstatus & LCD_INT_SD) == 0); 799 800 /* Call shutdown of current panel (if up) */ 801 /* this must occur last, because if an external clock is driving 802 the controller, the clock cannot be turned off before first 803 shutting down the controller. 804 */ 805 if (pd->panel_shutdown) 806 pd->panel_shutdown(); 807 } 808 809 /* Newpanel == NULL indicates a shutdown operation only */ 810 if (newpanel == NULL) 811 return; 812 813 panel = newpanel; 814 815 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres); 816 817 /* 818 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid) 819 */ 820 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT)) 821 { 822 struct clk *c = clk_get(NULL, "lcd_intclk"); 823 long r, pc = panel->lcdclk * 1000000; 824 825 if (!IS_ERR(c)) { 826 r = clk_round_rate(c, pc); 827 if ((pc - r) < (pc / 10)) { /* 10% slack */ 828 clk_set_rate(c, r); 829 clk_prepare_enable(c); 830 } 831 clk_put(c); 832 } 833 } 834 835 /* 836 * Configure panel timings 837 */ 838 lcd->screen = panel->mode_screen; 839 lcd->horztiming = panel->mode_horztiming; 840 lcd->verttiming = panel->mode_verttiming; 841 lcd->clkcontrol = panel->mode_clkcontrol; 842 lcd->pwmdiv = panel->mode_pwmdiv; 843 lcd->pwmhi = panel->mode_pwmhi; 844 lcd->outmask = panel->mode_outmask; 845 lcd->fifoctrl = panel->mode_fifoctrl; 846 wmb(); /* drain writebuffer */ 847 848 /* fixme: Check window settings to make sure still valid 849 * for new geometry */ 850 #if 0 851 au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos); 852 au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos); 853 au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos); 854 au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos); 855 #endif 856 lcd->winenable = winenable; 857 858 /* 859 * Re-enable screen now that it is configured 860 */ 861 lcd->screen |= LCD_SCREEN_SEN; 862 wmb(); /* drain writebuffer */ 863 864 /* Call init of panel */ 865 if (pd->panel_init) 866 pd->panel_init(); 867 868 /* FIX!!!! not appropriate on panel change!!! Global setup/init */ 869 lcd->intenable = 0; 870 lcd->intstatus = ~0; 871 lcd->backcolor = win->mode_backcolor; 872 873 /* Setup Color Key - FIX!!! */ 874 lcd->colorkey = win->mode_colorkey; 875 lcd->colorkeymsk = win->mode_colorkeymsk; 876 877 /* Setup HWCursor - FIX!!! Need to support this eventually */ 878 lcd->hwc.cursorctrl = 0; 879 lcd->hwc.cursorpos = 0; 880 lcd->hwc.cursorcolor0 = 0; 881 lcd->hwc.cursorcolor1 = 0; 882 lcd->hwc.cursorcolor2 = 0; 883 lcd->hwc.cursorcolor3 = 0; 884 885 886 #if 0 887 #define D(X) printk("%25s: %08X\n", #X, X) 888 D(lcd->screen); 889 D(lcd->horztiming); 890 D(lcd->verttiming); 891 D(lcd->clkcontrol); 892 D(lcd->pwmdiv); 893 D(lcd->pwmhi); 894 D(lcd->outmask); 895 D(lcd->fifoctrl); 896 D(lcd->window[0].winctrl0); 897 D(lcd->window[0].winctrl1); 898 D(lcd->window[0].winctrl2); 899 D(lcd->window[0].winbuf0); 900 D(lcd->window[0].winbuf1); 901 D(lcd->window[0].winbufctrl); 902 D(lcd->window[1].winctrl0); 903 D(lcd->window[1].winctrl1); 904 D(lcd->window[1].winctrl2); 905 D(lcd->window[1].winbuf0); 906 D(lcd->window[1].winbuf1); 907 D(lcd->window[1].winbufctrl); 908 D(lcd->window[2].winctrl0); 909 D(lcd->window[2].winctrl1); 910 D(lcd->window[2].winctrl2); 911 D(lcd->window[2].winbuf0); 912 D(lcd->window[2].winbuf1); 913 D(lcd->window[2].winbufctrl); 914 D(lcd->window[3].winctrl0); 915 D(lcd->window[3].winctrl1); 916 D(lcd->window[3].winctrl2); 917 D(lcd->window[3].winbuf0); 918 D(lcd->window[3].winbuf1); 919 D(lcd->window[3].winbufctrl); 920 D(lcd->winenable); 921 D(lcd->intenable); 922 D(lcd->intstatus); 923 D(lcd->backcolor); 924 D(lcd->winenable); 925 D(lcd->colorkey); 926 D(lcd->colorkeymsk); 927 D(lcd->hwc.cursorctrl); 928 D(lcd->hwc.cursorpos); 929 D(lcd->hwc.cursorcolor0); 930 D(lcd->hwc.cursorcolor1); 931 D(lcd->hwc.cursorcolor2); 932 D(lcd->hwc.cursorcolor3); 933 #endif 934 } 935 936 static void au1200_setmode(struct au1200fb_device *fbdev) 937 { 938 int plane = fbdev->plane; 939 /* Window/plane setup */ 940 lcd->window[plane].winctrl1 = ( 0 941 | LCD_WINCTRL1_PRI_N(plane) 942 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */ 943 ) ; 944 945 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos); 946 947 lcd->window[plane].winctrl2 = ( 0 948 | LCD_WINCTRL2_CKMODE_00 949 | LCD_WINCTRL2_DBM 950 | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length) 951 | LCD_WINCTRL2_SCX_1 952 | LCD_WINCTRL2_SCY_1 953 ) ; 954 lcd->winenable |= win->w[plane].mode_winenable; 955 wmb(); /* drain writebuffer */ 956 } 957 958 959 /* Inline helpers */ 960 961 /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ 962 /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ 963 964 #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN) 965 966 /* Bitfields format supported by the controller. */ 967 static struct fb_bitfield rgb_bitfields[][4] = { 968 /* Red, Green, Blue, Transp */ 969 [LCD_WINCTRL1_FRM_16BPP655 >> 25] = 970 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 971 972 [LCD_WINCTRL1_FRM_16BPP565 >> 25] = 973 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 974 975 [LCD_WINCTRL1_FRM_16BPP556 >> 25] = 976 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } }, 977 978 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] = 979 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 980 981 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] = 982 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } }, 983 984 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] = 985 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } }, 986 987 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] = 988 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } }, 989 990 [LCD_WINCTRL1_FRM_24BPP >> 25] = 991 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } }, 992 993 [LCD_WINCTRL1_FRM_32BPP >> 25] = 994 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } }, 995 }; 996 997 /*-------------------------------------------------------------------------*/ 998 999 /* Helpers */ 1000 1001 static void au1200fb_update_fbinfo(struct fb_info *fbi) 1002 { 1003 /* FIX!!!! This also needs to take the window pixel format into account!!! */ 1004 1005 /* Update var-dependent FB info */ 1006 if (panel_is_color(panel)) { 1007 if (fbi->var.bits_per_pixel <= 8) { 1008 /* palettized */ 1009 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR; 1010 fbi->fix.line_length = fbi->var.xres_virtual / 1011 (8/fbi->var.bits_per_pixel); 1012 } else { 1013 /* non-palettized */ 1014 fbi->fix.visual = FB_VISUAL_TRUECOLOR; 1015 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8); 1016 } 1017 } else { 1018 /* mono FIX!!! mono 8 and 4 bits */ 1019 fbi->fix.visual = FB_VISUAL_MONO10; 1020 fbi->fix.line_length = fbi->var.xres_virtual / 8; 1021 } 1022 1023 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual; 1024 print_dbg("line length: %d\n", fbi->fix.line_length); 1025 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel); 1026 } 1027 1028 /*-------------------------------------------------------------------------*/ 1029 1030 /* AU1200 framebuffer driver */ 1031 1032 /* fb_check_var 1033 * Validate var settings with hardware restrictions and modify it if necessary 1034 */ 1035 static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, 1036 struct fb_info *fbi) 1037 { 1038 struct au1200fb_device *fbdev = fbi->par; 1039 u32 pixclock; 1040 int screen_size, plane; 1041 1042 plane = fbdev->plane; 1043 1044 /* Make sure that the mode respect all LCD controller and 1045 * panel restrictions. */ 1046 var->xres = win->w[plane].xres; 1047 var->yres = win->w[plane].yres; 1048 1049 /* No need for virtual resolution support */ 1050 var->xres_virtual = var->xres; 1051 var->yres_virtual = var->yres; 1052 1053 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1); 1054 1055 screen_size = var->xres_virtual * var->yres_virtual; 1056 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8); 1057 else screen_size /= (8/var->bits_per_pixel); 1058 1059 if (fbdev->fb_len < screen_size) 1060 return -EINVAL; /* Virtual screen is to big, abort */ 1061 1062 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */ 1063 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel 1064 * clock can only be obtain by dividing this value by an even integer. 1065 * Fallback to a slower pixel clock if necessary. */ 1066 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin); 1067 pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2); 1068 1069 if (AU1200_LCD_MAX_CLK % pixclock) { 1070 int diff = AU1200_LCD_MAX_CLK % pixclock; 1071 pixclock -= diff; 1072 } 1073 1074 var->pixclock = KHZ2PICOS(pixclock/1000); 1075 #if 0 1076 if (!panel_is_active(panel)) { 1077 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1; 1078 1079 if (!panel_is_color(panel) 1080 && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) { 1081 /* STN 8bit mono panel support is up to 6MHz pixclock */ 1082 var->pixclock = KHZ2PICOS(6000); 1083 } else if (!pcd) { 1084 /* Other STN panel support is up to 12MHz */ 1085 var->pixclock = KHZ2PICOS(12000); 1086 } 1087 } 1088 #endif 1089 /* Set bitfield accordingly */ 1090 switch (var->bits_per_pixel) { 1091 case 16: 1092 { 1093 /* 16bpp True color. 1094 * These must be set to MATCH WINCTRL[FORM] */ 1095 int idx; 1096 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1097 var->red = rgb_bitfields[idx][0]; 1098 var->green = rgb_bitfields[idx][1]; 1099 var->blue = rgb_bitfields[idx][2]; 1100 var->transp = rgb_bitfields[idx][3]; 1101 break; 1102 } 1103 1104 case 32: 1105 { 1106 /* 32bpp True color. 1107 * These must be set to MATCH WINCTRL[FORM] */ 1108 int idx; 1109 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1110 var->red = rgb_bitfields[idx][0]; 1111 var->green = rgb_bitfields[idx][1]; 1112 var->blue = rgb_bitfields[idx][2]; 1113 var->transp = rgb_bitfields[idx][3]; 1114 break; 1115 } 1116 default: 1117 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel); 1118 return -EINVAL; 1119 } 1120 1121 return 0; 1122 } 1123 1124 /* fb_set_par 1125 * Set hardware with var settings. This will enable the controller with a 1126 * specific mode, normally validated with the fb_check_var method 1127 */ 1128 static int au1200fb_fb_set_par(struct fb_info *fbi) 1129 { 1130 struct au1200fb_device *fbdev = fbi->par; 1131 1132 au1200fb_update_fbinfo(fbi); 1133 au1200_setmode(fbdev); 1134 1135 return 0; 1136 } 1137 1138 /* fb_setcolreg 1139 * Set color in LCD palette. 1140 */ 1141 static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, 1142 unsigned blue, unsigned transp, struct fb_info *fbi) 1143 { 1144 volatile u32 *palette = lcd->palette; 1145 u32 value; 1146 1147 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1)) 1148 return -EINVAL; 1149 1150 if (fbi->var.grayscale) { 1151 /* Convert color to grayscale */ 1152 red = green = blue = 1153 (19595 * red + 38470 * green + 7471 * blue) >> 16; 1154 } 1155 1156 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) { 1157 /* Place color in the pseudopalette */ 1158 if (regno > 16) 1159 return -EINVAL; 1160 1161 palette = (u32*) fbi->pseudo_palette; 1162 1163 red >>= (16 - fbi->var.red.length); 1164 green >>= (16 - fbi->var.green.length); 1165 blue >>= (16 - fbi->var.blue.length); 1166 1167 value = (red << fbi->var.red.offset) | 1168 (green << fbi->var.green.offset)| 1169 (blue << fbi->var.blue.offset); 1170 value &= 0xFFFF; 1171 1172 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) { 1173 /* COLOR TFT PALLETTIZED (use RGB 565) */ 1174 value = (red & 0xF800)|((green >> 5) & 1175 0x07E0)|((blue >> 11) & 0x001F); 1176 value &= 0xFFFF; 1177 1178 } else if (0 /*panel_is_color(fbdev->panel)*/) { 1179 /* COLOR STN MODE */ 1180 value = 0x1234; 1181 value &= 0xFFF; 1182 } else { 1183 /* MONOCHROME MODE */ 1184 value = (green >> 12) & 0x000F; 1185 value &= 0xF; 1186 } 1187 1188 palette[regno] = value; 1189 1190 return 0; 1191 } 1192 1193 /* fb_blank 1194 * Blank the screen. Depending on the mode, the screen will be 1195 * activated with the backlight color, or desactivated 1196 */ 1197 static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) 1198 { 1199 struct au1200fb_device *fbdev = fbi->par; 1200 1201 /* Short-circuit screen blanking */ 1202 if (noblanking) 1203 return 0; 1204 1205 switch (blank_mode) { 1206 1207 case FB_BLANK_UNBLANK: 1208 case FB_BLANK_NORMAL: 1209 /* printk("turn on panel\n"); */ 1210 au1200_setpanel(panel, fbdev->pd); 1211 break; 1212 case FB_BLANK_VSYNC_SUSPEND: 1213 case FB_BLANK_HSYNC_SUSPEND: 1214 case FB_BLANK_POWERDOWN: 1215 /* printk("turn off panel\n"); */ 1216 au1200_setpanel(NULL, fbdev->pd); 1217 break; 1218 default: 1219 break; 1220 1221 } 1222 1223 /* FB_BLANK_NORMAL is a soft blank */ 1224 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0; 1225 } 1226 1227 /* fb_mmap 1228 * Map video memory in user space. We don't use the generic fb_mmap 1229 * method mainly to allow the use of the TLB streaming flag (CCA=6) 1230 */ 1231 static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) 1232 { 1233 struct au1200fb_device *fbdev = info->par; 1234 1235 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 1236 pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */ 1237 1238 return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len); 1239 } 1240 1241 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) 1242 { 1243 1244 unsigned int hi1, divider; 1245 1246 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */ 1247 1248 if (pdata->flags & SCREEN_BACKCOLOR) 1249 lcd->backcolor = pdata->backcolor; 1250 1251 if (pdata->flags & SCREEN_BRIGHTNESS) { 1252 1253 // limit brightness pwm duty to >= 30/1600 1254 if (pdata->brightness < 30) { 1255 pdata->brightness = 30; 1256 } 1257 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 1258 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8); 1259 lcd->pwmhi &= 0xFFFF; 1260 lcd->pwmhi |= (hi1 << 16); 1261 } 1262 1263 if (pdata->flags & SCREEN_COLORKEY) 1264 lcd->colorkey = pdata->colorkey; 1265 1266 if (pdata->flags & SCREEN_MASK) 1267 lcd->colorkeymsk = pdata->mask; 1268 wmb(); /* drain writebuffer */ 1269 } 1270 1271 static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) 1272 { 1273 unsigned int hi1, divider; 1274 1275 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1; 1276 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1; 1277 1278 pdata->backcolor = lcd->backcolor; 1279 pdata->colorkey = lcd->colorkey; 1280 pdata->mask = lcd->colorkeymsk; 1281 1282 // brightness 1283 hi1 = (lcd->pwmhi >> 16) + 1; 1284 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 1285 pdata->brightness = ((hi1 << 8) / divider) - 1; 1286 wmb(); /* drain writebuffer */ 1287 } 1288 1289 static void set_window(unsigned int plane, 1290 struct au1200_lcd_window_regs_t *pdata) 1291 { 1292 unsigned int val, bpp; 1293 1294 /* Window control register 0 */ 1295 if (pdata->flags & WIN_POSITION) { 1296 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX | 1297 LCD_WINCTRL0_OY); 1298 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX); 1299 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY); 1300 lcd->window[plane].winctrl0 = val; 1301 } 1302 if (pdata->flags & WIN_ALPHA_COLOR) { 1303 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A); 1304 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A); 1305 lcd->window[plane].winctrl0 = val; 1306 } 1307 if (pdata->flags & WIN_ALPHA_MODE) { 1308 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN); 1309 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN); 1310 lcd->window[plane].winctrl0 = val; 1311 } 1312 1313 /* Window control register 1 */ 1314 if (pdata->flags & WIN_PRIORITY) { 1315 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI); 1316 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI); 1317 lcd->window[plane].winctrl1 = val; 1318 } 1319 if (pdata->flags & WIN_CHANNEL) { 1320 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE); 1321 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE); 1322 lcd->window[plane].winctrl1 = val; 1323 } 1324 if (pdata->flags & WIN_BUFFER_FORMAT) { 1325 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM); 1326 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM); 1327 lcd->window[plane].winctrl1 = val; 1328 } 1329 if (pdata->flags & WIN_COLOR_ORDER) { 1330 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO); 1331 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO); 1332 lcd->window[plane].winctrl1 = val; 1333 } 1334 if (pdata->flags & WIN_PIXEL_ORDER) { 1335 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO); 1336 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO); 1337 lcd->window[plane].winctrl1 = val; 1338 } 1339 if (pdata->flags & WIN_SIZE) { 1340 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX | 1341 LCD_WINCTRL1_SZY); 1342 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX); 1343 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY); 1344 lcd->window[plane].winctrl1 = val; 1345 /* program buffer line width */ 1346 bpp = winbpp(val) / 8; 1347 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX); 1348 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX); 1349 lcd->window[plane].winctrl2 = val; 1350 } 1351 1352 /* Window control register 2 */ 1353 if (pdata->flags & WIN_COLORKEY_MODE) { 1354 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE); 1355 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE); 1356 lcd->window[plane].winctrl2 = val; 1357 } 1358 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) { 1359 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM); 1360 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM); 1361 lcd->window[plane].winctrl2 = val; 1362 } 1363 if (pdata->flags & WIN_RAM_ARRAY_MODE) { 1364 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM); 1365 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM); 1366 lcd->window[plane].winctrl2 = val; 1367 } 1368 1369 /* Buffer line width programmed with WIN_SIZE */ 1370 1371 if (pdata->flags & WIN_BUFFER_SCALE) { 1372 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX | 1373 LCD_WINCTRL2_SCY); 1374 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX); 1375 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY); 1376 lcd->window[plane].winctrl2 = val; 1377 } 1378 1379 if (pdata->flags & WIN_ENABLE) { 1380 val = lcd->winenable; 1381 val &= ~(1<<plane); 1382 val |= (pdata->enable & 1) << plane; 1383 lcd->winenable = val; 1384 } 1385 wmb(); /* drain writebuffer */ 1386 } 1387 1388 static void get_window(unsigned int plane, 1389 struct au1200_lcd_window_regs_t *pdata) 1390 { 1391 /* Window control register 0 */ 1392 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21; 1393 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10; 1394 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2; 1395 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1; 1396 1397 /* Window control register 1 */ 1398 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30; 1399 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29; 1400 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1401 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24; 1402 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22; 1403 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1; 1404 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1; 1405 1406 /* Window control register 2 */ 1407 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24; 1408 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23; 1409 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21; 1410 1411 pdata->enable = (lcd->winenable >> plane) & 1; 1412 wmb(); /* drain writebuffer */ 1413 } 1414 1415 static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, 1416 unsigned long arg) 1417 { 1418 struct au1200fb_device *fbdev = info->par; 1419 int plane; 1420 int val; 1421 1422 plane = fbinfo2index(info); 1423 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane); 1424 1425 if (cmd == AU1200_LCD_FB_IOCTL) { 1426 struct au1200_lcd_iodata_t iodata; 1427 1428 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata))) 1429 return -EFAULT; 1430 1431 print_dbg("FB IOCTL called\n"); 1432 1433 switch (iodata.subcmd) { 1434 case AU1200_LCD_SET_SCREEN: 1435 print_dbg("AU1200_LCD_SET_SCREEN\n"); 1436 set_global(cmd, &iodata.global); 1437 break; 1438 1439 case AU1200_LCD_GET_SCREEN: 1440 print_dbg("AU1200_LCD_GET_SCREEN\n"); 1441 get_global(cmd, &iodata.global); 1442 break; 1443 1444 case AU1200_LCD_SET_WINDOW: 1445 print_dbg("AU1200_LCD_SET_WINDOW\n"); 1446 set_window(plane, &iodata.window); 1447 break; 1448 1449 case AU1200_LCD_GET_WINDOW: 1450 print_dbg("AU1200_LCD_GET_WINDOW\n"); 1451 get_window(plane, &iodata.window); 1452 break; 1453 1454 case AU1200_LCD_SET_PANEL: 1455 print_dbg("AU1200_LCD_SET_PANEL\n"); 1456 if ((iodata.global.panel_choice >= 0) && 1457 (iodata.global.panel_choice < 1458 NUM_PANELS)) 1459 { 1460 struct panel_settings *newpanel; 1461 panel_index = iodata.global.panel_choice; 1462 newpanel = &known_lcd_panels[panel_index]; 1463 au1200_setpanel(newpanel, fbdev->pd); 1464 } 1465 break; 1466 1467 case AU1200_LCD_GET_PANEL: 1468 print_dbg("AU1200_LCD_GET_PANEL\n"); 1469 iodata.global.panel_choice = panel_index; 1470 break; 1471 1472 default: 1473 return -EINVAL; 1474 } 1475 1476 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata)); 1477 if (val) { 1478 print_dbg("error: could not copy %d bytes\n", val); 1479 return -EFAULT; 1480 } 1481 } 1482 1483 return 0; 1484 } 1485 1486 1487 static struct fb_ops au1200fb_fb_ops = { 1488 .owner = THIS_MODULE, 1489 .fb_check_var = au1200fb_fb_check_var, 1490 .fb_set_par = au1200fb_fb_set_par, 1491 .fb_setcolreg = au1200fb_fb_setcolreg, 1492 .fb_blank = au1200fb_fb_blank, 1493 .fb_fillrect = sys_fillrect, 1494 .fb_copyarea = sys_copyarea, 1495 .fb_imageblit = sys_imageblit, 1496 .fb_read = fb_sys_read, 1497 .fb_write = fb_sys_write, 1498 .fb_sync = NULL, 1499 .fb_ioctl = au1200fb_ioctl, 1500 .fb_mmap = au1200fb_fb_mmap, 1501 }; 1502 1503 /*-------------------------------------------------------------------------*/ 1504 1505 static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) 1506 { 1507 /* Nothing to do for now, just clear any pending interrupt */ 1508 lcd->intstatus = lcd->intstatus; 1509 wmb(); /* drain writebuffer */ 1510 1511 return IRQ_HANDLED; 1512 } 1513 1514 /*-------------------------------------------------------------------------*/ 1515 1516 /* AU1200 LCD device probe helpers */ 1517 1518 static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) 1519 { 1520 struct fb_info *fbi = fbdev->fb_info; 1521 int bpp; 1522 1523 fbi->fbops = &au1200fb_fb_ops; 1524 1525 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1); 1526 1527 /* Copy monitor specs from panel data */ 1528 /* fixme: we're setting up LCD controller windows, so these dont give a 1529 damn as to what the monitor specs are (the panel itself does, but that 1530 isn't done here...so maybe need a generic catchall monitor setting??? */ 1531 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs)); 1532 1533 /* We first try the user mode passed in argument. If that failed, 1534 * or if no one has been specified, we default to the first mode of the 1535 * panel list. Note that after this call, var data will be set */ 1536 if (!fb_find_mode(&fbi->var, 1537 fbi, 1538 NULL, /* drv_info.opt_mode, */ 1539 fbi->monspecs.modedb, 1540 fbi->monspecs.modedb_len, 1541 fbi->monspecs.modedb, 1542 bpp)) { 1543 1544 print_err("Cannot find valid mode for panel %s", panel->name); 1545 return -EFAULT; 1546 } 1547 1548 fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL); 1549 if (!fbi->pseudo_palette) { 1550 return -ENOMEM; 1551 } 1552 1553 if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) { 1554 print_err("Fail to allocate colormap (%d entries)", 1555 AU1200_LCD_NBR_PALETTE_ENTRIES); 1556 kfree(fbi->pseudo_palette); 1557 return -EFAULT; 1558 } 1559 1560 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id)); 1561 fbi->fix.smem_start = fbdev->fb_phys; 1562 fbi->fix.smem_len = fbdev->fb_len; 1563 fbi->fix.type = FB_TYPE_PACKED_PIXELS; 1564 fbi->fix.xpanstep = 0; 1565 fbi->fix.ypanstep = 0; 1566 fbi->fix.mmio_start = 0; 1567 fbi->fix.mmio_len = 0; 1568 fbi->fix.accel = FB_ACCEL_NONE; 1569 1570 fbi->screen_base = (char __iomem *) fbdev->fb_mem; 1571 1572 au1200fb_update_fbinfo(fbi); 1573 1574 return 0; 1575 } 1576 1577 /*-------------------------------------------------------------------------*/ 1578 1579 1580 static int au1200fb_setup(struct au1200fb_platdata *pd) 1581 { 1582 char *options = NULL; 1583 char *this_opt, *endptr; 1584 int num_panels = ARRAY_SIZE(known_lcd_panels); 1585 int panel_idx = -1; 1586 1587 fb_get_options(DRIVER_NAME, &options); 1588 1589 if (!options) 1590 goto out; 1591 1592 while ((this_opt = strsep(&options, ",")) != NULL) { 1593 /* Panel option - can be panel name, 1594 * "bs" for board-switch, or number/index */ 1595 if (!strncmp(this_opt, "panel:", 6)) { 1596 int i; 1597 long int li; 1598 char *endptr; 1599 this_opt += 6; 1600 /* First check for index, which allows 1601 * to short circuit this mess */ 1602 li = simple_strtol(this_opt, &endptr, 0); 1603 if (*endptr == '\0') 1604 panel_idx = (int)li; 1605 else if (strcmp(this_opt, "bs") == 0) 1606 panel_idx = pd->panel_index(); 1607 else { 1608 for (i = 0; i < num_panels; i++) { 1609 if (!strcmp(this_opt, 1610 known_lcd_panels[i].name)) { 1611 panel_idx = i; 1612 break; 1613 } 1614 } 1615 } 1616 if ((panel_idx < 0) || (panel_idx >= num_panels)) 1617 print_warn("Panel %s not supported!", this_opt); 1618 else 1619 panel_index = panel_idx; 1620 1621 } else if (strncmp(this_opt, "nohwcursor", 10) == 0) 1622 nohwcursor = 1; 1623 else if (strncmp(this_opt, "devices:", 8) == 0) { 1624 this_opt += 8; 1625 device_count = simple_strtol(this_opt, &endptr, 0); 1626 if ((device_count < 0) || 1627 (device_count > MAX_DEVICE_COUNT)) 1628 device_count = MAX_DEVICE_COUNT; 1629 } else if (strncmp(this_opt, "wincfg:", 7) == 0) { 1630 this_opt += 7; 1631 window_index = simple_strtol(this_opt, &endptr, 0); 1632 if ((window_index < 0) || 1633 (window_index >= ARRAY_SIZE(windows))) 1634 window_index = DEFAULT_WINDOW_INDEX; 1635 } else if (strncmp(this_opt, "off", 3) == 0) 1636 return 1; 1637 else 1638 print_warn("Unsupported option \"%s\"", this_opt); 1639 } 1640 1641 out: 1642 return 0; 1643 } 1644 1645 /* AU1200 LCD controller device driver */ 1646 static int au1200fb_drv_probe(struct platform_device *dev) 1647 { 1648 struct au1200fb_device *fbdev; 1649 struct au1200fb_platdata *pd; 1650 struct fb_info *fbi = NULL; 1651 unsigned long page; 1652 int bpp, plane, ret, irq; 1653 1654 print_info("" DRIVER_DESC ""); 1655 1656 pd = dev->dev.platform_data; 1657 if (!pd) 1658 return -ENODEV; 1659 1660 /* Setup driver with options */ 1661 if (au1200fb_setup(pd)) 1662 return -ENODEV; 1663 1664 /* Point to the panel selected */ 1665 panel = &known_lcd_panels[panel_index]; 1666 win = &windows[window_index]; 1667 1668 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name); 1669 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name); 1670 1671 /* shut gcc up */ 1672 ret = 0; 1673 fbdev = NULL; 1674 1675 for (plane = 0; plane < device_count; ++plane) { 1676 bpp = winbpp(win->w[plane].mode_winctrl1); 1677 if (win->w[plane].xres == 0) 1678 win->w[plane].xres = panel->Xres; 1679 if (win->w[plane].yres == 0) 1680 win->w[plane].yres = panel->Yres; 1681 1682 fbi = framebuffer_alloc(sizeof(struct au1200fb_device), 1683 &dev->dev); 1684 if (!fbi) 1685 goto failed; 1686 1687 _au1200fb_infos[plane] = fbi; 1688 fbdev = fbi->par; 1689 fbdev->fb_info = fbi; 1690 fbdev->pd = pd; 1691 1692 fbdev->plane = plane; 1693 1694 /* Allocate the framebuffer to the maximum screen size */ 1695 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8; 1696 1697 fbdev->fb_mem = dmam_alloc_noncoherent(&dev->dev, 1698 PAGE_ALIGN(fbdev->fb_len), 1699 &fbdev->fb_phys, GFP_KERNEL); 1700 if (!fbdev->fb_mem) { 1701 print_err("fail to allocate frambuffer (size: %dK))", 1702 fbdev->fb_len / 1024); 1703 return -ENOMEM; 1704 } 1705 1706 /* 1707 * Set page reserved so that mmap will work. This is necessary 1708 * since we'll be remapping normal memory. 1709 */ 1710 for (page = (unsigned long)fbdev->fb_phys; 1711 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys + 1712 fbdev->fb_len); 1713 page += PAGE_SIZE) { 1714 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */ 1715 } 1716 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem); 1717 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024); 1718 1719 /* Init FB data */ 1720 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0) 1721 goto failed; 1722 1723 /* Register new framebuffer */ 1724 ret = register_framebuffer(fbi); 1725 if (ret < 0) { 1726 print_err("cannot register new framebuffer"); 1727 goto failed; 1728 } 1729 1730 au1200fb_fb_set_par(fbi); 1731 1732 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO) 1733 if (plane == 0) 1734 if (fb_prepare_logo(fbi, FB_ROTATE_UR)) { 1735 /* Start display and show logo on boot */ 1736 fb_set_cmap(&fbi->cmap, fbi); 1737 fb_show_logo(fbi, FB_ROTATE_UR); 1738 } 1739 #endif 1740 } 1741 1742 /* Now hook interrupt too */ 1743 irq = platform_get_irq(dev, 0); 1744 ret = request_irq(irq, au1200fb_handle_irq, 1745 IRQF_SHARED, "lcd", (void *)dev); 1746 if (ret) { 1747 print_err("fail to request interrupt line %d (err: %d)", 1748 irq, ret); 1749 goto failed; 1750 } 1751 1752 platform_set_drvdata(dev, pd); 1753 1754 /* Kickstart the panel */ 1755 au1200_setpanel(panel, pd); 1756 1757 return 0; 1758 1759 failed: 1760 /* NOTE: This only does the current plane/window that failed; others are still active */ 1761 if (fbi) { 1762 if (fbi->cmap.len != 0) 1763 fb_dealloc_cmap(&fbi->cmap); 1764 kfree(fbi->pseudo_palette); 1765 } 1766 if (plane == 0) 1767 free_irq(AU1200_LCD_INT, (void*)dev); 1768 return ret; 1769 } 1770 1771 static int au1200fb_drv_remove(struct platform_device *dev) 1772 { 1773 struct au1200fb_platdata *pd = platform_get_drvdata(dev); 1774 struct au1200fb_device *fbdev; 1775 struct fb_info *fbi; 1776 int plane; 1777 1778 /* Turn off the panel */ 1779 au1200_setpanel(NULL, pd); 1780 1781 for (plane = 0; plane < device_count; ++plane) { 1782 fbi = _au1200fb_infos[plane]; 1783 fbdev = fbi->par; 1784 1785 /* Clean up all probe data */ 1786 unregister_framebuffer(fbi); 1787 if (fbi->cmap.len != 0) 1788 fb_dealloc_cmap(&fbi->cmap); 1789 kfree(fbi->pseudo_palette); 1790 1791 framebuffer_release(fbi); 1792 _au1200fb_infos[plane] = NULL; 1793 } 1794 1795 free_irq(platform_get_irq(dev, 0), (void *)dev); 1796 1797 return 0; 1798 } 1799 1800 #ifdef CONFIG_PM 1801 static int au1200fb_drv_suspend(struct device *dev) 1802 { 1803 struct au1200fb_platdata *pd = dev_get_drvdata(dev); 1804 au1200_setpanel(NULL, pd); 1805 1806 lcd->outmask = 0; 1807 wmb(); /* drain writebuffer */ 1808 1809 return 0; 1810 } 1811 1812 static int au1200fb_drv_resume(struct device *dev) 1813 { 1814 struct au1200fb_platdata *pd = dev_get_drvdata(dev); 1815 struct fb_info *fbi; 1816 int i; 1817 1818 /* Kickstart the panel */ 1819 au1200_setpanel(panel, pd); 1820 1821 for (i = 0; i < device_count; i++) { 1822 fbi = _au1200fb_infos[i]; 1823 au1200fb_fb_set_par(fbi); 1824 } 1825 1826 return 0; 1827 } 1828 1829 static const struct dev_pm_ops au1200fb_pmops = { 1830 .suspend = au1200fb_drv_suspend, 1831 .resume = au1200fb_drv_resume, 1832 .freeze = au1200fb_drv_suspend, 1833 .thaw = au1200fb_drv_resume, 1834 }; 1835 1836 #define AU1200FB_PMOPS (&au1200fb_pmops) 1837 1838 #else 1839 #define AU1200FB_PMOPS NULL 1840 #endif /* CONFIG_PM */ 1841 1842 static struct platform_driver au1200fb_driver = { 1843 .driver = { 1844 .name = "au1200-lcd", 1845 .pm = AU1200FB_PMOPS, 1846 }, 1847 .probe = au1200fb_drv_probe, 1848 .remove = au1200fb_drv_remove, 1849 }; 1850 module_platform_driver(au1200fb_driver); 1851 1852 MODULE_DESCRIPTION(DRIVER_DESC); 1853 MODULE_LICENSE("GPL"); 1854