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au1200fb.c
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linux-6.19.14/drivers/video/fbdev/au1200fb.c
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 83struct 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 111struct 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 133struct 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) */ 147struct au1200fb_device { 148 struct fb_info *fb_info; /* FB driver info record */ 149 struct au1200fb_platdata *pd; 150 struct device *dev; 151 152 int plane; 153 unsigned char* fb_mem; /* FrameBuffer memory map */ 154 unsigned int fb_len; 155 dma_addr_t fb_phys; 156}; 157 158/********************************************************************/ 159 160/* LCD controller restrictions */ 161#define AU1200_LCD_MAX_XRES 1280 162#define AU1200_LCD_MAX_YRES 1024 163#define AU1200_LCD_MAX_BPP 32 164#define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */ 165#define AU1200_LCD_NBR_PALETTE_ENTRIES 256 166 167/* Default number of visible screen buffer to allocate */ 168#define AU1200FB_NBR_VIDEO_BUFFERS 1 169 170/* Default maximum number of fb devices to create */ 171#define MAX_DEVICE_COUNT 4 172 173/* Default window configuration entry to use (see windows[]) */ 174#define DEFAULT_WINDOW_INDEX 2 175 176/********************************************************************/ 177 178static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT]; 179static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR; 180static int device_count = MAX_DEVICE_COUNT; 181static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */ 182static int panel_index = 2; /* default is zero */ 183static struct window_settings *win; 184static struct panel_settings *panel; 185static int noblanking = 1; 186static int nohwcursor = 0; 187 188struct window_settings { 189 unsigned char name[64]; 190 uint32 mode_backcolor; 191 uint32 mode_colorkey; 192 uint32 mode_colorkeymsk; 193 struct { 194 int xres; 195 int yres; 196 int xpos; 197 int ypos; 198 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */ 199 uint32 mode_winenable; 200 } w[4]; 201}; 202 203#if defined(__BIG_ENDIAN) 204#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00 205#else 206#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01 207#endif 208 209/* 210 * Default window configurations 211 */ 212static struct window_settings windows[] = { 213 { /* Index 0 */ 214 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 215 /* mode_backcolor */ 0x006600ff, 216 /* mode_colorkey,msk*/ 0, 0, 217 { 218 { 219 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 220 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 221 LCD_WINCTRL1_PO_16BPP, 222 /* mode_winenable*/ LCD_WINENABLE_WEN0, 223 }, 224 { 225 /* xres, yres, xpos, ypos */ 100, 100, 100, 100, 226 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 227 LCD_WINCTRL1_PO_16BPP | 228 LCD_WINCTRL1_PIPE, 229 /* mode_winenable*/ LCD_WINENABLE_WEN1, 230 }, 231 { 232 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 233 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 234 LCD_WINCTRL1_PO_16BPP, 235 /* mode_winenable*/ 0, 236 }, 237 { 238 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 239 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 240 LCD_WINCTRL1_PO_16BPP | 241 LCD_WINCTRL1_PIPE, 242 /* mode_winenable*/ 0, 243 }, 244 }, 245 }, 246 247 { /* Index 1 */ 248 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 249 /* mode_backcolor */ 0x006600ff, 250 /* mode_colorkey,msk*/ 0, 0, 251 { 252 { 253 /* xres, yres, xpos, ypos */ 320, 240, 5, 5, 254 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP | 255 LCD_WINCTRL1_PO_00, 256 /* mode_winenable*/ LCD_WINENABLE_WEN0, 257 }, 258 { 259 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 260 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 261 | LCD_WINCTRL1_PO_16BPP, 262 /* mode_winenable*/ 0, 263 }, 264 { 265 /* xres, yres, xpos, ypos */ 100, 100, 0, 0, 266 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 267 LCD_WINCTRL1_PO_16BPP | 268 LCD_WINCTRL1_PIPE, 269 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, 270 }, 271 { 272 /* xres, yres, xpos, ypos */ 200, 25, 0, 0, 273 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 274 LCD_WINCTRL1_PO_16BPP | 275 LCD_WINCTRL1_PIPE, 276 /* mode_winenable*/ 0, 277 }, 278 }, 279 }, 280 { /* Index 2 */ 281 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", 282 /* mode_backcolor */ 0x006600ff, 283 /* mode_colorkey,msk*/ 0, 0, 284 { 285 { 286 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 287 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 288 LCD_WINCTRL1_PO_16BPP, 289 /* mode_winenable*/ LCD_WINENABLE_WEN0, 290 }, 291 { 292 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 293 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 294 LCD_WINCTRL1_PO_16BPP, 295 /* mode_winenable*/ 0, 296 }, 297 { 298 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 299 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP | 300 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE, 301 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, 302 }, 303 { 304 /* xres, yres, xpos, ypos */ 0, 0, 0, 0, 305 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | 306 LCD_WINCTRL1_PO_16BPP | 307 LCD_WINCTRL1_PIPE, 308 /* mode_winenable*/ 0, 309 }, 310 }, 311 }, 312 /* Need VGA 640 @ 24bpp, @ 32bpp */ 313 /* Need VGA 800 @ 24bpp, @ 32bpp */ 314 /* Need VGA 1024 @ 24bpp, @ 32bpp */ 315}; 316 317/* 318 * Controller configurations for various panels. 319 */ 320 321struct panel_settings 322{ 323 const char name[25]; /* Full name <vendor>_<model> */ 324 325 struct fb_monspecs monspecs; /* FB monitor specs */ 326 327 /* panel timings */ 328 uint32 mode_screen; 329 uint32 mode_horztiming; 330 uint32 mode_verttiming; 331 uint32 mode_clkcontrol; 332 uint32 mode_pwmdiv; 333 uint32 mode_pwmhi; 334 uint32 mode_outmask; 335 uint32 mode_fifoctrl; 336 uint32 mode_backlight; 337 uint32 lcdclk; 338#define Xres min_xres 339#define Yres min_yres 340 u32 min_xres; /* Minimum horizontal resolution */ 341 u32 max_xres; /* Maximum horizontal resolution */ 342 u32 min_yres; /* Minimum vertical resolution */ 343 u32 max_yres; /* Maximum vertical resolution */ 344}; 345 346/********************************************************************/ 347/* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */ 348 349/* List of panels known to work with the AU1200 LCD controller. 350 * To add a new panel, enter the same specifications as the 351 * Generic_TFT one, and MAKE SURE that it doesn't conflicts 352 * with the controller restrictions. Restrictions are: 353 * 354 * STN color panels: max_bpp <= 12 355 * STN mono panels: max_bpp <= 4 356 * TFT panels: max_bpp <= 16 357 * max_xres <= 800 358 * max_yres <= 600 359 */ 360static struct panel_settings known_lcd_panels[] = 361{ 362 [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */ 363 .name = "QVGA_320x240", 364 .monspecs = { 365 .modedb = NULL, 366 .modedb_len = 0, 367 .hfmin = 30000, 368 .hfmax = 70000, 369 .vfmin = 60, 370 .vfmax = 60, 371 .dclkmin = 6000000, 372 .dclkmax = 28000000, 373 .input = FB_DISP_RGB, 374 }, 375 .mode_screen = LCD_SCREEN_SX_N(320) | 376 LCD_SCREEN_SY_N(240), 377 .mode_horztiming = 0x00c4623b, 378 .mode_verttiming = 0x00502814, 379 .mode_clkcontrol = 0x00020002, /* /4=24Mhz */ 380 .mode_pwmdiv = 0x00000000, 381 .mode_pwmhi = 0x00000000, 382 .mode_outmask = 0x00FFFFFF, 383 .mode_fifoctrl = 0x2f2f2f2f, 384 .mode_backlight = 0x00000000, 385 .lcdclk = 96, 386 320, 320, 387 240, 240, 388 }, 389 390 [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */ 391 .name = "VGA_640x480", 392 .monspecs = { 393 .modedb = NULL, 394 .modedb_len = 0, 395 .hfmin = 30000, 396 .hfmax = 70000, 397 .vfmin = 60, 398 .vfmax = 60, 399 .dclkmin = 6000000, 400 .dclkmax = 28000000, 401 .input = FB_DISP_RGB, 402 }, 403 .mode_screen = 0x13f9df80, 404 .mode_horztiming = 0x003c5859, 405 .mode_verttiming = 0x00741201, 406 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ 407 .mode_pwmdiv = 0x00000000, 408 .mode_pwmhi = 0x00000000, 409 .mode_outmask = 0x00FFFFFF, 410 .mode_fifoctrl = 0x2f2f2f2f, 411 .mode_backlight = 0x00000000, 412 .lcdclk = 96, 413 640, 480, 414 640, 480, 415 }, 416 417 [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */ 418 .name = "SVGA_800x600", 419 .monspecs = { 420 .modedb = NULL, 421 .modedb_len = 0, 422 .hfmin = 30000, 423 .hfmax = 70000, 424 .vfmin = 60, 425 .vfmax = 60, 426 .dclkmin = 6000000, 427 .dclkmax = 28000000, 428 .input = FB_DISP_RGB, 429 }, 430 .mode_screen = 0x18fa5780, 431 .mode_horztiming = 0x00dc7e77, 432 .mode_verttiming = 0x00584805, 433 .mode_clkcontrol = 0x00020000, /* /2=48Mhz */ 434 .mode_pwmdiv = 0x00000000, 435 .mode_pwmhi = 0x00000000, 436 .mode_outmask = 0x00FFFFFF, 437 .mode_fifoctrl = 0x2f2f2f2f, 438 .mode_backlight = 0x00000000, 439 .lcdclk = 96, 440 800, 800, 441 600, 600, 442 }, 443 444 [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */ 445 .name = "XVGA_1024x768", 446 .monspecs = { 447 .modedb = NULL, 448 .modedb_len = 0, 449 .hfmin = 30000, 450 .hfmax = 70000, 451 .vfmin = 60, 452 .vfmax = 60, 453 .dclkmin = 6000000, 454 .dclkmax = 28000000, 455 .input = FB_DISP_RGB, 456 }, 457 .mode_screen = 0x1ffaff80, 458 .mode_horztiming = 0x007d0e57, 459 .mode_verttiming = 0x00740a01, 460 .mode_clkcontrol = 0x000A0000, /* /1 */ 461 .mode_pwmdiv = 0x00000000, 462 .mode_pwmhi = 0x00000000, 463 .mode_outmask = 0x00FFFFFF, 464 .mode_fifoctrl = 0x2f2f2f2f, 465 .mode_backlight = 0x00000000, 466 .lcdclk = 72, 467 1024, 1024, 468 768, 768, 469 }, 470 471 [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */ 472 .name = "XVGA_1280x1024", 473 .monspecs = { 474 .modedb = NULL, 475 .modedb_len = 0, 476 .hfmin = 30000, 477 .hfmax = 70000, 478 .vfmin = 60, 479 .vfmax = 60, 480 .dclkmin = 6000000, 481 .dclkmax = 28000000, 482 .input = FB_DISP_RGB, 483 }, 484 .mode_screen = 0x27fbff80, 485 .mode_horztiming = 0x00cdb2c7, 486 .mode_verttiming = 0x00600002, 487 .mode_clkcontrol = 0x000A0000, /* /1 */ 488 .mode_pwmdiv = 0x00000000, 489 .mode_pwmhi = 0x00000000, 490 .mode_outmask = 0x00FFFFFF, 491 .mode_fifoctrl = 0x2f2f2f2f, 492 .mode_backlight = 0x00000000, 493 .lcdclk = 120, 494 1280, 1280, 495 1024, 1024, 496 }, 497 498 [5] = { /* Samsung 1024x768 TFT */ 499 .name = "Samsung_1024x768_TFT", 500 .monspecs = { 501 .modedb = NULL, 502 .modedb_len = 0, 503 .hfmin = 30000, 504 .hfmax = 70000, 505 .vfmin = 60, 506 .vfmax = 60, 507 .dclkmin = 6000000, 508 .dclkmax = 28000000, 509 .input = FB_DISP_RGB, 510 }, 511 .mode_screen = 0x1ffaff80, 512 .mode_horztiming = 0x018cc677, 513 .mode_verttiming = 0x00241217, 514 .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */ 515 .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */ 516 .mode_pwmhi = 0x03400000, /* SCB 0x0 */ 517 .mode_outmask = 0x00FFFFFF, 518 .mode_fifoctrl = 0x2f2f2f2f, 519 .mode_backlight = 0x00000000, 520 .lcdclk = 96, 521 1024, 1024, 522 768, 768, 523 }, 524 525 [6] = { /* Toshiba 640x480 TFT */ 526 .name = "Toshiba_640x480_TFT", 527 .monspecs = { 528 .modedb = NULL, 529 .modedb_len = 0, 530 .hfmin = 30000, 531 .hfmax = 70000, 532 .vfmin = 60, 533 .vfmax = 60, 534 .dclkmin = 6000000, 535 .dclkmax = 28000000, 536 .input = FB_DISP_RGB, 537 }, 538 .mode_screen = LCD_SCREEN_SX_N(640) | 539 LCD_SCREEN_SY_N(480), 540 .mode_horztiming = LCD_HORZTIMING_HPW_N(96) | 541 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51), 542 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | 543 LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32), 544 .mode_clkcontrol = 0x00000000, /* /4=24Mhz */ 545 .mode_pwmdiv = 0x8000063f, 546 .mode_pwmhi = 0x03400000, 547 .mode_outmask = 0x00fcfcfc, 548 .mode_fifoctrl = 0x2f2f2f2f, 549 .mode_backlight = 0x00000000, 550 .lcdclk = 96, 551 640, 480, 552 640, 480, 553 }, 554 555 [7] = { /* Sharp 320x240 TFT */ 556 .name = "Sharp_320x240_TFT", 557 .monspecs = { 558 .modedb = NULL, 559 .modedb_len = 0, 560 .hfmin = 12500, 561 .hfmax = 20000, 562 .vfmin = 38, 563 .vfmax = 81, 564 .dclkmin = 4500000, 565 .dclkmax = 6800000, 566 .input = FB_DISP_RGB, 567 }, 568 .mode_screen = LCD_SCREEN_SX_N(320) | 569 LCD_SCREEN_SY_N(240), 570 .mode_horztiming = LCD_HORZTIMING_HPW_N(60) | 571 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2), 572 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | 573 LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5), 574 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/ 575 .mode_pwmdiv = 0x8000063f, 576 .mode_pwmhi = 0x03400000, 577 .mode_outmask = 0x00fcfcfc, 578 .mode_fifoctrl = 0x2f2f2f2f, 579 .mode_backlight = 0x00000000, 580 .lcdclk = 96, /* 96MHz AUXPLL */ 581 320, 320, 582 240, 240, 583 }, 584 585 [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */ 586 .name = "Toppoly_TD070WGCB2", 587 .monspecs = { 588 .modedb = NULL, 589 .modedb_len = 0, 590 .hfmin = 30000, 591 .hfmax = 70000, 592 .vfmin = 60, 593 .vfmax = 60, 594 .dclkmin = 6000000, 595 .dclkmax = 28000000, 596 .input = FB_DISP_RGB, 597 }, 598 .mode_screen = LCD_SCREEN_SX_N(856) | 599 LCD_SCREEN_SY_N(480), 600 .mode_horztiming = LCD_HORZTIMING_HND2_N(43) | 601 LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114), 602 .mode_verttiming = LCD_VERTTIMING_VND2_N(20) | 603 LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4), 604 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ 605 .mode_pwmdiv = 0x8000063f, 606 .mode_pwmhi = 0x03400000, 607 .mode_outmask = 0x00fcfcfc, 608 .mode_fifoctrl = 0x2f2f2f2f, 609 .mode_backlight = 0x00000000, 610 .lcdclk = 96, 611 856, 856, 612 480, 480, 613 }, 614 [9] = { 615 .name = "DB1300_800x480", 616 .monspecs = { 617 .modedb = NULL, 618 .modedb_len = 0, 619 .hfmin = 30000, 620 .hfmax = 70000, 621 .vfmin = 60, 622 .vfmax = 60, 623 .dclkmin = 6000000, 624 .dclkmax = 28000000, 625 .input = FB_DISP_RGB, 626 }, 627 .mode_screen = LCD_SCREEN_SX_N(800) | 628 LCD_SCREEN_SY_N(480), 629 .mode_horztiming = LCD_HORZTIMING_HPW_N(5) | 630 LCD_HORZTIMING_HND1_N(16) | 631 LCD_HORZTIMING_HND2_N(8), 632 .mode_verttiming = LCD_VERTTIMING_VPW_N(4) | 633 LCD_VERTTIMING_VND1_N(8) | 634 LCD_VERTTIMING_VND2_N(5), 635 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(1) | 636 LCD_CLKCONTROL_IV | 637 LCD_CLKCONTROL_IH, 638 .mode_pwmdiv = 0x00000000, 639 .mode_pwmhi = 0x00000000, 640 .mode_outmask = 0x00FFFFFF, 641 .mode_fifoctrl = 0x2f2f2f2f, 642 .mode_backlight = 0x00000000, 643 .lcdclk = 96, 644 800, 800, 645 480, 480, 646 }, 647}; 648 649#define NUM_PANELS (ARRAY_SIZE(known_lcd_panels)) 650 651/********************************************************************/ 652 653static int winbpp (unsigned int winctrl1) 654{ 655 int bits = 0; 656 657 /* how many bits are needed for each pixel format */ 658 switch (winctrl1 & LCD_WINCTRL1_FRM) { 659 case LCD_WINCTRL1_FRM_1BPP: 660 bits = 1; 661 break; 662 case LCD_WINCTRL1_FRM_2BPP: 663 bits = 2; 664 break; 665 case LCD_WINCTRL1_FRM_4BPP: 666 bits = 4; 667 break; 668 case LCD_WINCTRL1_FRM_8BPP: 669 bits = 8; 670 break; 671 case LCD_WINCTRL1_FRM_12BPP: 672 case LCD_WINCTRL1_FRM_16BPP655: 673 case LCD_WINCTRL1_FRM_16BPP565: 674 case LCD_WINCTRL1_FRM_16BPP556: 675 case LCD_WINCTRL1_FRM_16BPPI1555: 676 case LCD_WINCTRL1_FRM_16BPPI5551: 677 case LCD_WINCTRL1_FRM_16BPPA1555: 678 case LCD_WINCTRL1_FRM_16BPPA5551: 679 bits = 16; 680 break; 681 case LCD_WINCTRL1_FRM_24BPP: 682 case LCD_WINCTRL1_FRM_32BPP: 683 bits = 32; 684 break; 685 } 686 687 return bits; 688} 689 690static int fbinfo2index (struct fb_info *fb_info) 691{ 692 int i; 693 694 for (i = 0; i < device_count; ++i) { 695 if (fb_info == _au1200fb_infos[i]) 696 return i; 697 } 698 printk("au1200fb: ERROR: fbinfo2index failed!\n"); 699 return -1; 700} 701 702static int au1200_setlocation (struct au1200fb_device *fbdev, int plane, 703 int xpos, int ypos) 704{ 705 uint32 winctrl0, winctrl1, winenable, fb_offset = 0; 706 int xsz, ysz; 707 708 /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */ 709 710 winctrl0 = lcd->window[plane].winctrl0; 711 winctrl1 = lcd->window[plane].winctrl1; 712 winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN); 713 winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); 714 715 /* Check for off-screen adjustments */ 716 xsz = win->w[plane].xres; 717 ysz = win->w[plane].yres; 718 if ((xpos + win->w[plane].xres) > panel->Xres) { 719 /* Off-screen to the right */ 720 xsz = panel->Xres - xpos; /* off by 1 ??? */ 721 /*printk("off screen right\n");*/ 722 } 723 724 if ((ypos + win->w[plane].yres) > panel->Yres) { 725 /* Off-screen to the bottom */ 726 ysz = panel->Yres - ypos; /* off by 1 ??? */ 727 /*printk("off screen bottom\n");*/ 728 } 729 730 if (xpos < 0) { 731 /* Off-screen to the left */ 732 xsz = win->w[plane].xres + xpos; 733 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8); 734 xpos = 0; 735 /*printk("off screen left\n");*/ 736 } 737 738 if (ypos < 0) { 739 /* Off-screen to the top */ 740 ysz = win->w[plane].yres + ypos; 741 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */ 742 ypos = 0; 743 /*printk("off screen top\n");*/ 744 } 745 746 /* record settings */ 747 win->w[plane].xpos = xpos; 748 win->w[plane].ypos = ypos; 749 750 xsz -= 1; 751 ysz -= 1; 752 winctrl0 |= (xpos << 21); 753 winctrl0 |= (ypos << 10); 754 winctrl1 |= (xsz << 11); 755 winctrl1 |= (ysz << 0); 756 757 /* Disable the window while making changes, then restore WINEN */ 758 winenable = lcd->winenable & (1 << plane); 759 wmb(); /* drain writebuffer */ 760 lcd->winenable &= ~(1 << plane); 761 lcd->window[plane].winctrl0 = winctrl0; 762 lcd->window[plane].winctrl1 = winctrl1; 763 lcd->window[plane].winbuf0 = 764 lcd->window[plane].winbuf1 = fbdev->fb_phys; 765 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */ 766 lcd->winenable |= winenable; 767 wmb(); /* drain writebuffer */ 768 769 return 0; 770} 771 772static void au1200_setpanel(struct panel_settings *newpanel, 773 struct au1200fb_platdata *pd) 774{ 775 /* 776 * Perform global setup/init of LCD controller 777 */ 778 uint32 winenable; 779 780 /* Make sure all windows disabled */ 781 winenable = lcd->winenable; 782 lcd->winenable = 0; 783 wmb(); /* drain writebuffer */ 784 /* 785 * Ensure everything is disabled before reconfiguring 786 */ 787 if (lcd->screen & LCD_SCREEN_SEN) { 788 /* Wait for vertical sync period */ 789 lcd->intstatus = LCD_INT_SS; 790 while ((lcd->intstatus & LCD_INT_SS) == 0) 791 ; 792 793 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/ 794 795 do { 796 lcd->intstatus = lcd->intstatus; /*clear interrupts*/ 797 wmb(); /* drain writebuffer */ 798 /*wait for controller to shut down*/ 799 } while ((lcd->intstatus & LCD_INT_SD) == 0); 800 801 /* Call shutdown of current panel (if up) */ 802 /* this must occur last, because if an external clock is driving 803 the controller, the clock cannot be turned off before first 804 shutting down the controller. 805 */ 806 if (pd->panel_shutdown) 807 pd->panel_shutdown(); 808 } 809 810 /* Newpanel == NULL indicates a shutdown operation only */ 811 if (newpanel == NULL) 812 return; 813 814 panel = newpanel; 815 816 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres); 817 818 /* 819 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid) 820 */ 821 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT)) 822 { 823 struct clk *c = clk_get(NULL, "lcd_intclk"); 824 long r, pc = panel->lcdclk * 1000000; 825 826 if (!IS_ERR(c)) { 827 r = clk_round_rate(c, pc); 828 if ((pc - r) < (pc / 10)) { /* 10% slack */ 829 clk_set_rate(c, r); 830 clk_prepare_enable(c); 831 } 832 clk_put(c); 833 } 834 } 835 836 /* 837 * Configure panel timings 838 */ 839 lcd->screen = panel->mode_screen; 840 lcd->horztiming = panel->mode_horztiming; 841 lcd->verttiming = panel->mode_verttiming; 842 lcd->clkcontrol = panel->mode_clkcontrol; 843 lcd->pwmdiv = panel->mode_pwmdiv; 844 lcd->pwmhi = panel->mode_pwmhi; 845 lcd->outmask = panel->mode_outmask; 846 lcd->fifoctrl = panel->mode_fifoctrl; 847 wmb(); /* drain writebuffer */ 848 849 /* fixme: Check window settings to make sure still valid 850 * for new geometry */ 851#if 0 852 au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos); 853 au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos); 854 au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos); 855 au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos); 856#endif 857 lcd->winenable = winenable; 858 859 /* 860 * Re-enable screen now that it is configured 861 */ 862 lcd->screen |= LCD_SCREEN_SEN; 863 wmb(); /* drain writebuffer */ 864 865 /* Call init of panel */ 866 if (pd->panel_init) 867 pd->panel_init(); 868 869 /* FIX!!!! not appropriate on panel change!!! Global setup/init */ 870 lcd->intenable = 0; 871 lcd->intstatus = ~0; 872 lcd->backcolor = win->mode_backcolor; 873 874 /* Setup Color Key - FIX!!! */ 875 lcd->colorkey = win->mode_colorkey; 876 lcd->colorkeymsk = win->mode_colorkeymsk; 877 878 /* Setup HWCursor - FIX!!! Need to support this eventually */ 879 lcd->hwc.cursorctrl = 0; 880 lcd->hwc.cursorpos = 0; 881 lcd->hwc.cursorcolor0 = 0; 882 lcd->hwc.cursorcolor1 = 0; 883 lcd->hwc.cursorcolor2 = 0; 884 lcd->hwc.cursorcolor3 = 0; 885 886 887#if 0 888#define D(X) printk("%25s: %08X\n", #X, X) 889 D(lcd->screen); 890 D(lcd->horztiming); 891 D(lcd->verttiming); 892 D(lcd->clkcontrol); 893 D(lcd->pwmdiv); 894 D(lcd->pwmhi); 895 D(lcd->outmask); 896 D(lcd->fifoctrl); 897 D(lcd->window[0].winctrl0); 898 D(lcd->window[0].winctrl1); 899 D(lcd->window[0].winctrl2); 900 D(lcd->window[0].winbuf0); 901 D(lcd->window[0].winbuf1); 902 D(lcd->window[0].winbufctrl); 903 D(lcd->window[1].winctrl0); 904 D(lcd->window[1].winctrl1); 905 D(lcd->window[1].winctrl2); 906 D(lcd->window[1].winbuf0); 907 D(lcd->window[1].winbuf1); 908 D(lcd->window[1].winbufctrl); 909 D(lcd->window[2].winctrl0); 910 D(lcd->window[2].winctrl1); 911 D(lcd->window[2].winctrl2); 912 D(lcd->window[2].winbuf0); 913 D(lcd->window[2].winbuf1); 914 D(lcd->window[2].winbufctrl); 915 D(lcd->window[3].winctrl0); 916 D(lcd->window[3].winctrl1); 917 D(lcd->window[3].winctrl2); 918 D(lcd->window[3].winbuf0); 919 D(lcd->window[3].winbuf1); 920 D(lcd->window[3].winbufctrl); 921 D(lcd->winenable); 922 D(lcd->intenable); 923 D(lcd->intstatus); 924 D(lcd->backcolor); 925 D(lcd->winenable); 926 D(lcd->colorkey); 927 D(lcd->colorkeymsk); 928 D(lcd->hwc.cursorctrl); 929 D(lcd->hwc.cursorpos); 930 D(lcd->hwc.cursorcolor0); 931 D(lcd->hwc.cursorcolor1); 932 D(lcd->hwc.cursorcolor2); 933 D(lcd->hwc.cursorcolor3); 934#endif 935} 936 937static void au1200_setmode(struct au1200fb_device *fbdev) 938{ 939 int plane = fbdev->plane; 940 /* Window/plane setup */ 941 lcd->window[plane].winctrl1 = ( 0 942 | LCD_WINCTRL1_PRI_N(plane) 943 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */ 944 ) ; 945 946 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos); 947 948 lcd->window[plane].winctrl2 = ( 0 949 | LCD_WINCTRL2_CKMODE_00 950 | LCD_WINCTRL2_DBM 951 | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length) 952 | LCD_WINCTRL2_SCX_1 953 | LCD_WINCTRL2_SCY_1 954 ) ; 955 lcd->winenable |= win->w[plane].mode_winenable; 956 wmb(); /* drain writebuffer */ 957} 958 959 960/* Inline helpers */ 961 962/*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ 963/*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ 964 965#define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN) 966 967/* Bitfields format supported by the controller. */ 968static struct fb_bitfield rgb_bitfields[][4] = { 969 /* Red, Green, Blue, Transp */ 970 [LCD_WINCTRL1_FRM_16BPP655 >> 25] = 971 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 972 973 [LCD_WINCTRL1_FRM_16BPP565 >> 25] = 974 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 975 976 [LCD_WINCTRL1_FRM_16BPP556 >> 25] = 977 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } }, 978 979 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] = 980 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, 981 982 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] = 983 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } }, 984 985 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] = 986 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } }, 987 988 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] = 989 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } }, 990 991 [LCD_WINCTRL1_FRM_24BPP >> 25] = 992 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } }, 993 994 [LCD_WINCTRL1_FRM_32BPP >> 25] = 995 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } }, 996}; 997 998/*-------------------------------------------------------------------------*/ 999 1000/* Helpers */ 1001 1002static void au1200fb_update_fbinfo(struct fb_info *fbi) 1003{ 1004 /* FIX!!!! This also needs to take the window pixel format into account!!! */ 1005 1006 /* Update var-dependent FB info */ 1007 if (panel_is_color(panel)) { 1008 if (fbi->var.bits_per_pixel <= 8) { 1009 /* palettized */ 1010 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR; 1011 fbi->fix.line_length = fbi->var.xres_virtual / 1012 (8/fbi->var.bits_per_pixel); 1013 } else { 1014 /* non-palettized */ 1015 fbi->fix.visual = FB_VISUAL_TRUECOLOR; 1016 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8); 1017 } 1018 } else { 1019 /* mono FIX!!! mono 8 and 4 bits */ 1020 fbi->fix.visual = FB_VISUAL_MONO10; 1021 fbi->fix.line_length = fbi->var.xres_virtual / 8; 1022 } 1023 1024 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual; 1025 print_dbg("line length: %d\n", fbi->fix.line_length); 1026 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel); 1027} 1028 1029/*-------------------------------------------------------------------------*/ 1030 1031/* AU1200 framebuffer driver */ 1032 1033/* fb_check_var 1034 * Validate var settings with hardware restrictions and modify it if necessary 1035 */ 1036static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, 1037 struct fb_info *fbi) 1038{ 1039 struct au1200fb_device *fbdev = fbi->par; 1040 u32 pixclock; 1041 int screen_size, plane; 1042 1043 if (!var->pixclock) 1044 return -EINVAL; 1045 1046 plane = fbdev->plane; 1047 1048 /* Make sure that the mode respect all LCD controller and 1049 * panel restrictions. */ 1050 var->xres = win->w[plane].xres; 1051 var->yres = win->w[plane].yres; 1052 1053 /* No need for virtual resolution support */ 1054 var->xres_virtual = var->xres; 1055 var->yres_virtual = var->yres; 1056 1057 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1); 1058 1059 screen_size = var->xres_virtual * var->yres_virtual; 1060 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8); 1061 else screen_size /= (8/var->bits_per_pixel); 1062 1063 if (fbdev->fb_len < screen_size) 1064 return -EINVAL; /* Virtual screen is to big, abort */ 1065 1066 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */ 1067 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel 1068 * clock can only be obtain by dividing this value by an even integer. 1069 * Fallback to a slower pixel clock if necessary. */ 1070 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin); 1071 pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2); 1072 1073 if (AU1200_LCD_MAX_CLK % pixclock) { 1074 int diff = AU1200_LCD_MAX_CLK % pixclock; 1075 pixclock -= diff; 1076 } 1077 1078 var->pixclock = KHZ2PICOS(pixclock/1000); 1079#if 0 1080 if (!panel_is_active(panel)) { 1081 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1; 1082 1083 if (!panel_is_color(panel) 1084 && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) { 1085 /* STN 8bit mono panel support is up to 6MHz pixclock */ 1086 var->pixclock = KHZ2PICOS(6000); 1087 } else if (!pcd) { 1088 /* Other STN panel support is up to 12MHz */ 1089 var->pixclock = KHZ2PICOS(12000); 1090 } 1091 } 1092#endif 1093 /* Set bitfield accordingly */ 1094 switch (var->bits_per_pixel) { 1095 case 16: 1096 { 1097 /* 16bpp True color. 1098 * These must be set to MATCH WINCTRL[FORM] */ 1099 int idx; 1100 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1101 var->red = rgb_bitfields[idx][0]; 1102 var->green = rgb_bitfields[idx][1]; 1103 var->blue = rgb_bitfields[idx][2]; 1104 var->transp = rgb_bitfields[idx][3]; 1105 break; 1106 } 1107 1108 case 32: 1109 { 1110 /* 32bpp True color. 1111 * These must be set to MATCH WINCTRL[FORM] */ 1112 int idx; 1113 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1114 var->red = rgb_bitfields[idx][0]; 1115 var->green = rgb_bitfields[idx][1]; 1116 var->blue = rgb_bitfields[idx][2]; 1117 var->transp = rgb_bitfields[idx][3]; 1118 break; 1119 } 1120 default: 1121 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel); 1122 return -EINVAL; 1123 } 1124 1125 return 0; 1126} 1127 1128/* fb_set_par 1129 * Set hardware with var settings. This will enable the controller with a 1130 * specific mode, normally validated with the fb_check_var method 1131 */ 1132static int au1200fb_fb_set_par(struct fb_info *fbi) 1133{ 1134 struct au1200fb_device *fbdev = fbi->par; 1135 1136 au1200fb_update_fbinfo(fbi); 1137 au1200_setmode(fbdev); 1138 1139 return 0; 1140} 1141 1142/* fb_setcolreg 1143 * Set color in LCD palette. 1144 */ 1145static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, 1146 unsigned blue, unsigned transp, struct fb_info *fbi) 1147{ 1148 volatile u32 *palette = lcd->palette; 1149 u32 value; 1150 1151 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1)) 1152 return -EINVAL; 1153 1154 if (fbi->var.grayscale) { 1155 /* Convert color to grayscale */ 1156 red = green = blue = 1157 (19595 * red + 38470 * green + 7471 * blue) >> 16; 1158 } 1159 1160 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) { 1161 /* Place color in the pseudopalette */ 1162 if (regno > 16) 1163 return -EINVAL; 1164 1165 palette = (u32*) fbi->pseudo_palette; 1166 1167 red >>= (16 - fbi->var.red.length); 1168 green >>= (16 - fbi->var.green.length); 1169 blue >>= (16 - fbi->var.blue.length); 1170 1171 value = (red << fbi->var.red.offset) | 1172 (green << fbi->var.green.offset)| 1173 (blue << fbi->var.blue.offset); 1174 value &= 0xFFFF; 1175 1176 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) { 1177 /* COLOR TFT PALLETTIZED (use RGB 565) */ 1178 value = (red & 0xF800)|((green >> 5) & 1179 0x07E0)|((blue >> 11) & 0x001F); 1180 value &= 0xFFFF; 1181 1182 } else if (0 /*panel_is_color(fbdev->panel)*/) { 1183 /* COLOR STN MODE */ 1184 value = 0x1234; 1185 value &= 0xFFF; 1186 } else { 1187 /* MONOCHROME MODE */ 1188 value = (green >> 12) & 0x000F; 1189 value &= 0xF; 1190 } 1191 1192 palette[regno] = value; 1193 1194 return 0; 1195} 1196 1197/* fb_blank 1198 * Blank the screen. Depending on the mode, the screen will be 1199 * activated with the backlight color, or desactivated 1200 */ 1201static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) 1202{ 1203 struct au1200fb_device *fbdev = fbi->par; 1204 1205 /* Short-circuit screen blanking */ 1206 if (noblanking) 1207 return 0; 1208 1209 switch (blank_mode) { 1210 1211 case FB_BLANK_UNBLANK: 1212 case FB_BLANK_NORMAL: 1213 /* printk("turn on panel\n"); */ 1214 au1200_setpanel(panel, fbdev->pd); 1215 break; 1216 case FB_BLANK_VSYNC_SUSPEND: 1217 case FB_BLANK_HSYNC_SUSPEND: 1218 case FB_BLANK_POWERDOWN: 1219 /* printk("turn off panel\n"); */ 1220 au1200_setpanel(NULL, fbdev->pd); 1221 break; 1222 default: 1223 break; 1224 1225 } 1226 1227 /* FB_BLANK_NORMAL is a soft blank */ 1228 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0; 1229} 1230 1231/* fb_mmap 1232 * Map video memory in user space. We don't use the generic fb_mmap 1233 * method mainly to allow the use of the TLB streaming flag (CCA=6) 1234 */ 1235static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) 1236{ 1237 struct au1200fb_device *fbdev = info->par; 1238 1239 vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); 1240 1241 return dma_mmap_coherent(fbdev->dev, vma, 1242 fbdev->fb_mem, fbdev->fb_phys, fbdev->fb_len); 1243} 1244 1245static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) 1246{ 1247 1248 unsigned int hi1, divider; 1249 1250 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */ 1251 1252 if (pdata->flags & SCREEN_BACKCOLOR) 1253 lcd->backcolor = pdata->backcolor; 1254 1255 if (pdata->flags & SCREEN_BRIGHTNESS) { 1256 1257 // limit brightness pwm duty to >= 30/1600 1258 if (pdata->brightness < 30) { 1259 pdata->brightness = 30; 1260 } 1261 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 1262 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8); 1263 lcd->pwmhi &= 0xFFFF; 1264 lcd->pwmhi |= (hi1 << 16); 1265 } 1266 1267 if (pdata->flags & SCREEN_COLORKEY) 1268 lcd->colorkey = pdata->colorkey; 1269 1270 if (pdata->flags & SCREEN_MASK) 1271 lcd->colorkeymsk = pdata->mask; 1272 wmb(); /* drain writebuffer */ 1273} 1274 1275static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) 1276{ 1277 unsigned int hi1, divider; 1278 1279 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1; 1280 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1; 1281 1282 pdata->backcolor = lcd->backcolor; 1283 pdata->colorkey = lcd->colorkey; 1284 pdata->mask = lcd->colorkeymsk; 1285 1286 // brightness 1287 hi1 = (lcd->pwmhi >> 16) + 1; 1288 divider = (lcd->pwmdiv & 0x3FFFF) + 1; 1289 pdata->brightness = ((hi1 << 8) / divider) - 1; 1290 wmb(); /* drain writebuffer */ 1291} 1292 1293static void set_window(unsigned int plane, 1294 struct au1200_lcd_window_regs_t *pdata) 1295{ 1296 unsigned int val, bpp; 1297 1298 /* Window control register 0 */ 1299 if (pdata->flags & WIN_POSITION) { 1300 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX | 1301 LCD_WINCTRL0_OY); 1302 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX); 1303 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY); 1304 lcd->window[plane].winctrl0 = val; 1305 } 1306 if (pdata->flags & WIN_ALPHA_COLOR) { 1307 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A); 1308 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A); 1309 lcd->window[plane].winctrl0 = val; 1310 } 1311 if (pdata->flags & WIN_ALPHA_MODE) { 1312 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN); 1313 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN); 1314 lcd->window[plane].winctrl0 = val; 1315 } 1316 1317 /* Window control register 1 */ 1318 if (pdata->flags & WIN_PRIORITY) { 1319 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI); 1320 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI); 1321 lcd->window[plane].winctrl1 = val; 1322 } 1323 if (pdata->flags & WIN_CHANNEL) { 1324 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE); 1325 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE); 1326 lcd->window[plane].winctrl1 = val; 1327 } 1328 if (pdata->flags & WIN_BUFFER_FORMAT) { 1329 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM); 1330 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM); 1331 lcd->window[plane].winctrl1 = val; 1332 } 1333 if (pdata->flags & WIN_COLOR_ORDER) { 1334 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO); 1335 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO); 1336 lcd->window[plane].winctrl1 = val; 1337 } 1338 if (pdata->flags & WIN_PIXEL_ORDER) { 1339 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO); 1340 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO); 1341 lcd->window[plane].winctrl1 = val; 1342 } 1343 if (pdata->flags & WIN_SIZE) { 1344 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX | 1345 LCD_WINCTRL1_SZY); 1346 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX); 1347 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY); 1348 lcd->window[plane].winctrl1 = val; 1349 /* program buffer line width */ 1350 bpp = winbpp(val) / 8; 1351 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX); 1352 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX); 1353 lcd->window[plane].winctrl2 = val; 1354 } 1355 1356 /* Window control register 2 */ 1357 if (pdata->flags & WIN_COLORKEY_MODE) { 1358 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE); 1359 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE); 1360 lcd->window[plane].winctrl2 = val; 1361 } 1362 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) { 1363 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM); 1364 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM); 1365 lcd->window[plane].winctrl2 = val; 1366 } 1367 if (pdata->flags & WIN_RAM_ARRAY_MODE) { 1368 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM); 1369 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM); 1370 lcd->window[plane].winctrl2 = val; 1371 } 1372 1373 /* Buffer line width programmed with WIN_SIZE */ 1374 1375 if (pdata->flags & WIN_BUFFER_SCALE) { 1376 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX | 1377 LCD_WINCTRL2_SCY); 1378 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX); 1379 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY); 1380 lcd->window[plane].winctrl2 = val; 1381 } 1382 1383 if (pdata->flags & WIN_ENABLE) { 1384 val = lcd->winenable; 1385 val &= ~(1<<plane); 1386 val |= (pdata->enable & 1) << plane; 1387 lcd->winenable = val; 1388 } 1389 wmb(); /* drain writebuffer */ 1390} 1391 1392static void get_window(unsigned int plane, 1393 struct au1200_lcd_window_regs_t *pdata) 1394{ 1395 /* Window control register 0 */ 1396 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21; 1397 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10; 1398 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2; 1399 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1; 1400 1401 /* Window control register 1 */ 1402 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30; 1403 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29; 1404 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25; 1405 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24; 1406 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22; 1407 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1; 1408 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1; 1409 1410 /* Window control register 2 */ 1411 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24; 1412 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23; 1413 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21; 1414 1415 pdata->enable = (lcd->winenable >> plane) & 1; 1416 wmb(); /* drain writebuffer */ 1417} 1418 1419static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, 1420 unsigned long arg) 1421{ 1422 struct au1200fb_device *fbdev = info->par; 1423 int plane; 1424 int val; 1425 1426 plane = fbinfo2index(info); 1427 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane); 1428 1429 if (cmd == AU1200_LCD_FB_IOCTL) { 1430 struct au1200_lcd_iodata_t iodata; 1431 1432 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata))) 1433 return -EFAULT; 1434 1435 print_dbg("FB IOCTL called\n"); 1436 1437 switch (iodata.subcmd) { 1438 case AU1200_LCD_SET_SCREEN: 1439 print_dbg("AU1200_LCD_SET_SCREEN\n"); 1440 set_global(cmd, &iodata.global); 1441 break; 1442 1443 case AU1200_LCD_GET_SCREEN: 1444 print_dbg("AU1200_LCD_GET_SCREEN\n"); 1445 get_global(cmd, &iodata.global); 1446 break; 1447 1448 case AU1200_LCD_SET_WINDOW: 1449 print_dbg("AU1200_LCD_SET_WINDOW\n"); 1450 set_window(plane, &iodata.window); 1451 break; 1452 1453 case AU1200_LCD_GET_WINDOW: 1454 print_dbg("AU1200_LCD_GET_WINDOW\n"); 1455 get_window(plane, &iodata.window); 1456 break; 1457 1458 case AU1200_LCD_SET_PANEL: 1459 print_dbg("AU1200_LCD_SET_PANEL\n"); 1460 if ((iodata.global.panel_choice >= 0) && 1461 (iodata.global.panel_choice < 1462 NUM_PANELS)) 1463 { 1464 struct panel_settings *newpanel; 1465 panel_index = iodata.global.panel_choice; 1466 newpanel = &known_lcd_panels[panel_index]; 1467 au1200_setpanel(newpanel, fbdev->pd); 1468 } 1469 break; 1470 1471 case AU1200_LCD_GET_PANEL: 1472 print_dbg("AU1200_LCD_GET_PANEL\n"); 1473 iodata.global.panel_choice = panel_index; 1474 break; 1475 1476 default: 1477 return -EINVAL; 1478 } 1479 1480 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata)); 1481 if (val) { 1482 print_dbg("error: could not copy %d bytes\n", val); 1483 return -EFAULT; 1484 } 1485 } 1486 1487 return 0; 1488} 1489 1490 1491static const struct fb_ops au1200fb_fb_ops = { 1492 .owner = THIS_MODULE, 1493 __FB_DEFAULT_DMAMEM_OPS_RDWR, 1494 .fb_check_var = au1200fb_fb_check_var, 1495 .fb_set_par = au1200fb_fb_set_par, 1496 .fb_setcolreg = au1200fb_fb_setcolreg, 1497 .fb_blank = au1200fb_fb_blank, 1498 __FB_DEFAULT_DMAMEM_OPS_DRAW, 1499 .fb_sync = NULL, 1500 .fb_ioctl = au1200fb_ioctl, 1501 .fb_mmap = au1200fb_fb_mmap, 1502}; 1503 1504/*-------------------------------------------------------------------------*/ 1505 1506static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) 1507{ 1508 /* Nothing to do for now, just clear any pending interrupt */ 1509 lcd->intstatus = lcd->intstatus; 1510 wmb(); /* drain writebuffer */ 1511 1512 return IRQ_HANDLED; 1513} 1514 1515/*-------------------------------------------------------------------------*/ 1516 1517/* AU1200 LCD device probe helpers */ 1518 1519static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) 1520{ 1521 struct fb_info *fbi = fbdev->fb_info; 1522 int bpp, ret; 1523 1524 fbi->fbops = &au1200fb_fb_ops; 1525 1526 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1); 1527 1528 /* Copy monitor specs from panel data */ 1529 /* fixme: we're setting up LCD controller windows, so these dont give a 1530 damn as to what the monitor specs are (the panel itself does, but that 1531 isn't done here...so maybe need a generic catchall monitor setting??? */ 1532 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs)); 1533 1534 /* We first try the user mode passed in argument. If that failed, 1535 * or if no one has been specified, we default to the first mode of the 1536 * panel list. Note that after this call, var data will be set */ 1537 if (!fb_find_mode(&fbi->var, 1538 fbi, 1539 NULL, /* drv_info.opt_mode, */ 1540 fbi->monspecs.modedb, 1541 fbi->monspecs.modedb_len, 1542 fbi->monspecs.modedb, 1543 bpp)) { 1544 1545 print_err("Cannot find valid mode for panel %s", panel->name); 1546 return -EFAULT; 1547 } 1548 1549 fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL); 1550 if (!fbi->pseudo_palette) 1551 return -ENOMEM; 1552 1553 ret = fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0); 1554 if (ret < 0) { 1555 print_err("Fail to allocate colormap (%d entries)", 1556 AU1200_LCD_NBR_PALETTE_ENTRIES); 1557 return ret; 1558 } 1559 1560 strscpy(fbi->fix.id, "AU1200"); 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->flags |= FBINFO_VIRTFB; 1571 1572 fbi->screen_buffer = fbdev->fb_mem; 1573 1574 au1200fb_update_fbinfo(fbi); 1575 1576 return 0; 1577} 1578 1579/*-------------------------------------------------------------------------*/ 1580 1581 1582static int au1200fb_setup(struct au1200fb_platdata *pd) 1583{ 1584 char *options = NULL; 1585 char *this_opt, *endptr; 1586 int num_panels = ARRAY_SIZE(known_lcd_panels); 1587 int panel_idx = -1; 1588 1589 fb_get_options(DRIVER_NAME, &options); 1590 1591 if (!options) 1592 goto out; 1593 1594 while ((this_opt = strsep(&options, ",")) != NULL) { 1595 /* Panel option - can be panel name, 1596 * "bs" for board-switch, or number/index */ 1597 if (!strncmp(this_opt, "panel:", 6)) { 1598 int i; 1599 long int li; 1600 char *endptr; 1601 this_opt += 6; 1602 /* First check for index, which allows 1603 * to short circuit this mess */ 1604 li = simple_strtol(this_opt, &endptr, 0); 1605 if (*endptr == '\0') 1606 panel_idx = (int)li; 1607 else if (strcmp(this_opt, "bs") == 0) 1608 panel_idx = pd->panel_index(); 1609 else { 1610 for (i = 0; i < num_panels; i++) { 1611 if (!strcmp(this_opt, 1612 known_lcd_panels[i].name)) { 1613 panel_idx = i; 1614 break; 1615 } 1616 } 1617 } 1618 if ((panel_idx < 0) || (panel_idx >= num_panels)) 1619 print_warn("Panel %s not supported!", this_opt); 1620 else 1621 panel_index = panel_idx; 1622 1623 } else if (strncmp(this_opt, "nohwcursor", 10) == 0) 1624 nohwcursor = 1; 1625 else if (strncmp(this_opt, "devices:", 8) == 0) { 1626 this_opt += 8; 1627 device_count = simple_strtol(this_opt, &endptr, 0); 1628 if ((device_count < 0) || 1629 (device_count > MAX_DEVICE_COUNT)) 1630 device_count = MAX_DEVICE_COUNT; 1631 } else if (strncmp(this_opt, "wincfg:", 7) == 0) { 1632 this_opt += 7; 1633 window_index = simple_strtol(this_opt, &endptr, 0); 1634 if ((window_index < 0) || 1635 (window_index >= ARRAY_SIZE(windows))) 1636 window_index = DEFAULT_WINDOW_INDEX; 1637 } else if (strncmp(this_opt, "off", 3) == 0) 1638 return 1; 1639 else 1640 print_warn("Unsupported option \"%s\"", this_opt); 1641 } 1642 1643out: 1644 return 0; 1645} 1646 1647/* AU1200 LCD controller device driver */ 1648static int au1200fb_drv_probe(struct platform_device *dev) 1649{ 1650 struct au1200fb_device *fbdev; 1651 struct au1200fb_platdata *pd; 1652 struct fb_info *fbi = NULL; 1653 int bpp, plane, ret, irq; 1654 1655 print_info("" DRIVER_DESC ""); 1656 1657 pd = dev->dev.platform_data; 1658 if (!pd) 1659 return -ENODEV; 1660 1661 /* Setup driver with options */ 1662 if (au1200fb_setup(pd)) 1663 return -ENODEV; 1664 1665 /* Point to the panel selected */ 1666 panel = &known_lcd_panels[panel_index]; 1667 win = &windows[window_index]; 1668 1669 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name); 1670 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name); 1671 1672 for (plane = 0; plane < device_count; ++plane) { 1673 bpp = winbpp(win->w[plane].mode_winctrl1); 1674 if (win->w[plane].xres == 0) 1675 win->w[plane].xres = panel->Xres; 1676 if (win->w[plane].yres == 0) 1677 win->w[plane].yres = panel->Yres; 1678 1679 fbi = framebuffer_alloc(sizeof(struct au1200fb_device), 1680 &dev->dev); 1681 if (!fbi) { 1682 ret = -ENOMEM; 1683 goto failed; 1684 } 1685 1686 _au1200fb_infos[plane] = fbi; 1687 fbdev = fbi->par; 1688 fbdev->fb_info = fbi; 1689 fbdev->pd = pd; 1690 fbdev->dev = &dev->dev; 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_attrs(&dev->dev, 1698 PAGE_ALIGN(fbdev->fb_len), 1699 &fbdev->fb_phys, GFP_KERNEL, 0); 1700 if (!fbdev->fb_mem) { 1701 print_err("fail to allocate framebuffer (size: %dK))", 1702 fbdev->fb_len / 1024); 1703 ret = -ENOMEM; 1704 goto failed; 1705 } 1706 1707 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem); 1708 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024); 1709 1710 /* Init FB data */ 1711 ret = au1200fb_init_fbinfo(fbdev); 1712 if (ret < 0) 1713 goto failed; 1714 1715 /* Register new framebuffer */ 1716 ret = register_framebuffer(fbi); 1717 if (ret < 0) { 1718 print_err("cannot register new framebuffer"); 1719 goto failed; 1720 } 1721 1722 au1200fb_fb_set_par(fbi); 1723 } 1724 1725 /* Now hook interrupt too */ 1726 irq = platform_get_irq(dev, 0); 1727 if (irq < 0) { 1728 ret = irq; 1729 goto failed; 1730 } 1731 1732 ret = request_irq(irq, au1200fb_handle_irq, 1733 IRQF_SHARED, "lcd", (void *)dev); 1734 if (ret) { 1735 print_err("fail to request interrupt line %d (err: %d)", 1736 irq, ret); 1737 goto failed; 1738 } 1739 1740 platform_set_drvdata(dev, pd); 1741 1742 /* Kickstart the panel */ 1743 au1200_setpanel(panel, pd); 1744 1745 return 0; 1746 1747failed: 1748 for (plane = 0; plane < device_count; ++plane) { 1749 fbi = _au1200fb_infos[plane]; 1750 if (!fbi) 1751 break; 1752 1753 /* Clean up all probe data */ 1754 unregister_framebuffer(fbi); 1755 if (fbi->cmap.len != 0) 1756 fb_dealloc_cmap(&fbi->cmap); 1757 kfree(fbi->pseudo_palette); 1758 1759 framebuffer_release(fbi); 1760 _au1200fb_infos[plane] = NULL; 1761 } 1762 return ret; 1763} 1764 1765static void au1200fb_drv_remove(struct platform_device *dev) 1766{ 1767 struct au1200fb_platdata *pd = platform_get_drvdata(dev); 1768 struct fb_info *fbi; 1769 int plane; 1770 1771 /* Turn off the panel */ 1772 au1200_setpanel(NULL, pd); 1773 1774 for (plane = 0; plane < device_count; ++plane) { 1775 fbi = _au1200fb_infos[plane]; 1776 1777 /* Clean up all probe data */ 1778 unregister_framebuffer(fbi); 1779 if (fbi->cmap.len != 0) 1780 fb_dealloc_cmap(&fbi->cmap); 1781 kfree(fbi->pseudo_palette); 1782 1783 framebuffer_release(fbi); 1784 _au1200fb_infos[plane] = NULL; 1785 } 1786 1787 free_irq(platform_get_irq(dev, 0), (void *)dev); 1788} 1789 1790#ifdef CONFIG_PM 1791static int au1200fb_drv_suspend(struct device *dev) 1792{ 1793 struct au1200fb_platdata *pd = dev_get_drvdata(dev); 1794 au1200_setpanel(NULL, pd); 1795 1796 lcd->outmask = 0; 1797 wmb(); /* drain writebuffer */ 1798 1799 return 0; 1800} 1801 1802static int au1200fb_drv_resume(struct device *dev) 1803{ 1804 struct au1200fb_platdata *pd = dev_get_drvdata(dev); 1805 struct fb_info *fbi; 1806 int i; 1807 1808 /* Kickstart the panel */ 1809 au1200_setpanel(panel, pd); 1810 1811 for (i = 0; i < device_count; i++) { 1812 fbi = _au1200fb_infos[i]; 1813 au1200fb_fb_set_par(fbi); 1814 } 1815 1816 return 0; 1817} 1818 1819static const struct dev_pm_ops au1200fb_pmops = { 1820 .suspend = au1200fb_drv_suspend, 1821 .resume = au1200fb_drv_resume, 1822 .freeze = au1200fb_drv_suspend, 1823 .thaw = au1200fb_drv_resume, 1824}; 1825 1826#define AU1200FB_PMOPS (&au1200fb_pmops) 1827 1828#else 1829#define AU1200FB_PMOPS NULL 1830#endif /* CONFIG_PM */ 1831 1832static struct platform_driver au1200fb_driver = { 1833 .driver = { 1834 .name = "au1200-lcd", 1835 .pm = AU1200FB_PMOPS, 1836 }, 1837 .probe = au1200fb_drv_probe, 1838 .remove = au1200fb_drv_remove, 1839}; 1840module_platform_driver(au1200fb_driver); 1841 1842MODULE_DESCRIPTION(DRIVER_DESC); 1843MODULE_LICENSE("GPL");
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