kernel/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
  47 #include <asm/mach-au1x00/au1000.h>
  48 #include <asm/mach-au1x00/au1200fb.h>   /* platform_data */
  49 #include "au1200fb.h"
  50
  51 #define DRIVER_NAME "au1200fb"
  52 #define DRIVER_DESC "LCD controller driver for AU1200 processors"
  53
  54 #define DEBUG 0
  55
  56 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
  57 #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
  58 #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
  59
  60 #if DEBUG
  61 #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
  62 #else
  63 #define print_dbg(f, arg...) do {} while (0)
  64 #endif
  65
  66
  67 #define AU1200_LCD_FB_IOCTL 0x46FF
  68
  69 #define AU1200_LCD_SET_SCREEN 1
  70 #define AU1200_LCD_GET_SCREEN 2
  71 #define AU1200_LCD_SET_WINDOW 3
  72 #define AU1200_LCD_GET_WINDOW 4
  73 #define AU1200_LCD_SET_PANEL  5
  74 #define AU1200_LCD_GET_PANEL  6
  75
  76 #define SCREEN_SIZE                 (1<< 1)
  77 #define SCREEN_BACKCOLOR    (1<< 2)
  78 #define SCREEN_BRIGHTNESS   (1<< 3)
  79 #define SCREEN_COLORKEY     (1<< 4)
  80 #define SCREEN_MASK         (1<< 5)
  81
  82 struct au1200_lcd_global_regs_t {
  83         unsigned int flags;
  84         unsigned int xsize;
  85         unsigned int ysize;
  86         unsigned int backcolor;
  87         unsigned int brightness;
  88         unsigned int colorkey;
  89         unsigned int mask;
  90         unsigned int panel_choice;
  91         char panel_desc[80];
  92
  93 };
  94
  95 #define WIN_POSITION            (1<< 0)
  96 #define WIN_ALPHA_COLOR         (1<< 1)
  97 #define WIN_ALPHA_MODE          (1<< 2)
  98 #define WIN_PRIORITY            (1<< 3)
  99 #define WIN_CHANNEL             (1<< 4)
 100 #define WIN_BUFFER_FORMAT       (1<< 5)
 101 #define WIN_COLOR_ORDER         (1<< 6)
 102 #define WIN_PIXEL_ORDER         (1<< 7)
 103 #define WIN_SIZE                (1<< 8)
 104 #define WIN_COLORKEY_MODE       (1<< 9)
 105 #define WIN_DOUBLE_BUFFER_MODE  (1<< 10)
 106 #define WIN_RAM_ARRAY_MODE      (1<< 11)
 107 #define WIN_BUFFER_SCALE        (1<< 12)
 108 #define WIN_ENABLE                  (1<< 13)
 109
 110 struct au1200_lcd_window_regs_t {
 111         unsigned int flags;
 112         unsigned int xpos;
 113         unsigned int ypos;
 114         unsigned int alpha_color;
 115         unsigned int alpha_mode;
 116         unsigned int priority;
 117         unsigned int channel;
 118         unsigned int buffer_format;
 119         unsigned int color_order;
 120         unsigned int pixel_order;
 121         unsigned int xsize;
 122         unsigned int ysize;
 123         unsigned int colorkey_mode;
 124         unsigned int double_buffer_mode;
 125         unsigned int ram_array_mode;
 126         unsigned int xscale;
 127         unsigned int yscale;
 128         unsigned int enable;
 129 };
 130
 131
 132 struct au1200_lcd_iodata_t {
 133         unsigned int subcmd;
 134         struct au1200_lcd_global_regs_t global;
 135         struct au1200_lcd_window_regs_t window;
 136 };
 137
 138 #if defined(__BIG_ENDIAN)
 139 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
 140 #else
 141 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
 142 #endif
 143 #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
 144
 145 /* Private, per-framebuffer management information (independent of the panel itself) */
 146 struct au1200fb_device {
 147         struct fb_info *fb_info;                /* FB driver info record */
 148         struct au1200fb_platdata *pd;
 149
 150         int                                     plane;
 151         unsigned char*          fb_mem;         /* FrameBuffer memory map */
 152         unsigned int            fb_len;
 153         dma_addr_t              fb_phys;
 154 };
 155
 156 /********************************************************************/
 157
 158 /* LCD controller restrictions */
 159 #define AU1200_LCD_MAX_XRES     1280
 160 #define AU1200_LCD_MAX_YRES     1024
 161 #define AU1200_LCD_MAX_BPP      32
 162 #define AU1200_LCD_MAX_CLK      96000000 /* fixme: this needs to go away ? */
 163 #define AU1200_LCD_NBR_PALETTE_ENTRIES 256
 164
 165 /* Default number of visible screen buffer to allocate */
 166 #define AU1200FB_NBR_VIDEO_BUFFERS 1
 167
 168 /* Default maximum number of fb devices to create */
 169 #define MAX_DEVICE_COUNT        4
 170
 171 /* Default window configuration entry to use (see windows[]) */
 172 #define DEFAULT_WINDOW_INDEX    2
 173
 174 /********************************************************************/
 175
 176 static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT];
 177 static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
 178 static int device_count = MAX_DEVICE_COUNT;
 179 static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */
 180 static int panel_index = 2; /* default is zero */
 181 static struct window_settings *win;
 182 static struct panel_settings *panel;
 183 static int noblanking = 1;
 184 static int nohwcursor = 0;
 185
 186 struct window_settings {
 187         unsigned char name[64];
 188         uint32 mode_backcolor;
 189         uint32 mode_colorkey;
 190         uint32 mode_colorkeymsk;
 191         struct {
 192                 int xres;
 193                 int yres;
 194                 int xpos;
 195                 int ypos;
 196                 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
 197                 uint32 mode_winenable;
 198         } w[4];
 199 };
 200
 201 #if defined(__BIG_ENDIAN)
 202 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
 203 #else
 204 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
 205 #endif
 206
 207 /*
 208  * Default window configurations
 209  */
 210 static struct window_settings windows[] = {
 211         { /* Index 0 */
 212                 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
 213                 /* mode_backcolor       */ 0x006600ff,
 214                 /* mode_colorkey,msk*/ 0, 0,
 215                 {
 216                         {
 217                         /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
 218                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 219                                 LCD_WINCTRL1_PO_16BPP,
 220                         /* mode_winenable*/ LCD_WINENABLE_WEN0,
 221                         },
 222                         {
 223                         /* xres, yres, xpos, ypos */ 100, 100, 100, 100,
 224                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 225                                 LCD_WINCTRL1_PO_16BPP |
 226                                 LCD_WINCTRL1_PIPE,
 227                         /* mode_winenable*/ LCD_WINENABLE_WEN1,
 228                         },
 229                         {
 230                         /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
 231                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 232                                 LCD_WINCTRL1_PO_16BPP,
 233                         /* mode_winenable*/ 0,
 234                         },
 235                         {
 236                         /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
 237                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 238                                 LCD_WINCTRL1_PO_16BPP |
 239                                 LCD_WINCTRL1_PIPE,
 240                         /* mode_winenable*/ 0,
 241                         },
 242                 },
 243         },
 244
 245         { /* Index 1 */
 246                 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
 247                 /* mode_backcolor       */ 0x006600ff,
 248                 /* mode_colorkey,msk*/ 0, 0,
 249                 {
 250                         {
 251                         /* xres, yres, xpos, ypos */ 320, 240, 5, 5,
 252                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
 253                                 LCD_WINCTRL1_PO_00,
 254                         /* mode_winenable*/ LCD_WINENABLE_WEN0,
 255                         },
 256                         {
 257                         /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
 258                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
 259                                 | LCD_WINCTRL1_PO_16BPP,
 260                         /* mode_winenable*/ 0,
 261                         },
 262                         {
 263                         /* xres, yres, xpos, ypos */ 100, 100, 0, 0,
 264                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 265                                 LCD_WINCTRL1_PO_16BPP |
 266                                 LCD_WINCTRL1_PIPE,
 267                         /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
 268                         },
 269                         {
 270                         /* xres, yres, xpos, ypos */ 200, 25, 0, 0,
 271                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 272                                 LCD_WINCTRL1_PO_16BPP |
 273                                 LCD_WINCTRL1_PIPE,
 274                         /* mode_winenable*/ 0,
 275                         },
 276                 },
 277         },
 278         { /* Index 2 */
 279                 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
 280                 /* mode_backcolor       */ 0x006600ff,
 281                 /* mode_colorkey,msk*/ 0, 0,
 282                 {
 283                         {
 284                         /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
 285                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 286                                 LCD_WINCTRL1_PO_16BPP,
 287                         /* mode_winenable*/ LCD_WINENABLE_WEN0,
 288                         },
 289                         {
 290                         /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
 291                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 292                                 LCD_WINCTRL1_PO_16BPP,
 293                         /* mode_winenable*/ 0,
 294                         },
 295                         {
 296                         /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
 297                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
 298                                 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
 299                         /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
 300                         },
 301                         {
 302                         /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
 303                         /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
 304                                 LCD_WINCTRL1_PO_16BPP |
 305                                 LCD_WINCTRL1_PIPE,
 306                         /* mode_winenable*/ 0,
 307                         },
 308                 },
 309         },
 310         /* Need VGA 640 @ 24bpp, @ 32bpp */
 311         /* Need VGA 800 @ 24bpp, @ 32bpp */
 312         /* Need VGA 1024 @ 24bpp, @ 32bpp */
 313 };
 314
 315 /*
 316  * Controller configurations for various panels.
 317  */
 318
 319 struct panel_settings
 320 {
 321         const char name[25];            /* Full name <vendor>_<model> */
 322
 323         struct  fb_monspecs monspecs;   /* FB monitor specs */
 324
 325         /* panel timings */
 326         uint32 mode_screen;
 327         uint32 mode_horztiming;
 328         uint32 mode_verttiming;
 329         uint32 mode_clkcontrol;
 330         uint32 mode_pwmdiv;
 331         uint32 mode_pwmhi;
 332         uint32 mode_outmask;
 333         uint32 mode_fifoctrl;
 334         uint32 mode_backlight;
 335         uint32 lcdclk;
 336 #define Xres min_xres
 337 #define Yres min_yres
 338         u32     min_xres;               /* Minimum horizontal resolution */
 339         u32     max_xres;               /* Maximum horizontal resolution */
 340         u32     min_yres;               /* Minimum vertical resolution */
 341         u32     max_yres;               /* Maximum vertical resolution */
 342 };
 343
 344 /********************************************************************/
 345 /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
 346
 347 /* List of panels known to work with the AU1200 LCD controller.
 348  * To add a new panel, enter the same specifications as the
 349  * Generic_TFT one, and MAKE SURE that it doesn't conflicts
 350  * with the controller restrictions. Restrictions are:
 351  *
 352  * STN color panels: max_bpp <= 12
 353  * STN mono panels: max_bpp <= 4
 354  * TFT panels: max_bpp <= 16
 355  * max_xres <= 800
 356  * max_yres <= 600
 357  */
 358 static struct panel_settings known_lcd_panels[] =
 359 {
 360         [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
 361                 .name = "QVGA_320x240",
 362                 .monspecs = {
 363                         .modedb = NULL,
 364                         .modedb_len = 0,
 365                         .hfmin = 30000,
 366                         .hfmax = 70000,
 367                         .vfmin = 60,
 368                         .vfmax = 60,
 369                         .dclkmin = 6000000,
 370                         .dclkmax = 28000000,
 371                         .input = FB_DISP_RGB,
 372                 },
 373                 .mode_screen            = LCD_SCREEN_SX_N(320) |
 374                         LCD_SCREEN_SY_N(240),
 375                 .mode_horztiming        = 0x00c4623b,
 376                 .mode_verttiming        = 0x00502814,
 377                 .mode_clkcontrol        = 0x00020002, /* /4=24Mhz */
 378                 .mode_pwmdiv            = 0x00000000,
 379                 .mode_pwmhi             = 0x00000000,
 380                 .mode_outmask   = 0x00FFFFFF,
 381                 .mode_fifoctrl  = 0x2f2f2f2f,
 382                 .mode_backlight = 0x00000000,
 383                 .lcdclk         = 96,
 384                 320, 320,
 385                 240, 240,
 386         },
 387
 388         [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
 389                 .name = "VGA_640x480",
 390                 .monspecs = {
 391                         .modedb = NULL,
 392                         .modedb_len = 0,
 393                         .hfmin = 30000,
 394                         .hfmax = 70000,
 395                         .vfmin = 60,
 396                         .vfmax = 60,
 397                         .dclkmin = 6000000,
 398                         .dclkmax = 28000000,
 399                         .input = FB_DISP_RGB,
 400                 },
 401                 .mode_screen            = 0x13f9df80,
 402                 .mode_horztiming        = 0x003c5859,
 403                 .mode_verttiming        = 0x00741201,
 404                 .mode_clkcontrol        = 0x00020001, /* /4=24Mhz */
 405                 .mode_pwmdiv            = 0x00000000,
 406                 .mode_pwmhi             = 0x00000000,
 407                 .mode_outmask   = 0x00FFFFFF,
 408                 .mode_fifoctrl  = 0x2f2f2f2f,
 409                 .mode_backlight = 0x00000000,
 410                 .lcdclk         = 96,
 411                 640, 480,
 412                 640, 480,
 413         },
 414
 415         [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
 416                 .name = "SVGA_800x600",
 417                 .monspecs = {
 418                         .modedb = NULL,
 419                         .modedb_len = 0,
 420                         .hfmin = 30000,
 421                         .hfmax = 70000,
 422                         .vfmin = 60,
 423                         .vfmax = 60,
 424                         .dclkmin = 6000000,
 425                         .dclkmax = 28000000,
 426                         .input = FB_DISP_RGB,
 427                 },
 428                 .mode_screen            = 0x18fa5780,
 429                 .mode_horztiming        = 0x00dc7e77,
 430                 .mode_verttiming        = 0x00584805,
 431                 .mode_clkcontrol        = 0x00020000, /* /2=48Mhz */
 432                 .mode_pwmdiv            = 0x00000000,
 433                 .mode_pwmhi             = 0x00000000,
 434                 .mode_outmask   = 0x00FFFFFF,
 435                 .mode_fifoctrl  = 0x2f2f2f2f,
 436                 .mode_backlight = 0x00000000,
 437                 .lcdclk         = 96,
 438                 800, 800,
 439                 600, 600,
 440         },
 441
 442         [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
 443                 .name = "XVGA_1024x768",
 444                 .monspecs = {
 445                         .modedb = NULL,
 446                         .modedb_len = 0,
 447                         .hfmin = 30000,
 448                         .hfmax = 70000,
 449                         .vfmin = 60,
 450                         .vfmax = 60,
 451                         .dclkmin = 6000000,
 452                         .dclkmax = 28000000,
 453                         .input = FB_DISP_RGB,
 454                 },
 455                 .mode_screen            = 0x1ffaff80,
 456                 .mode_horztiming        = 0x007d0e57,
 457                 .mode_verttiming        = 0x00740a01,
 458                 .mode_clkcontrol        = 0x000A0000, /* /1 */
 459                 .mode_pwmdiv            = 0x00000000,
 460                 .mode_pwmhi             = 0x00000000,
 461                 .mode_outmask   = 0x00FFFFFF,
 462                 .mode_fifoctrl  = 0x2f2f2f2f,
 463                 .mode_backlight = 0x00000000,
 464                 .lcdclk         = 72,
 465                 1024, 1024,
 466                 768, 768,
 467         },
 468
 469         [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
 470                 .name = "XVGA_1280x1024",
 471                 .monspecs = {
 472                         .modedb = NULL,
 473                         .modedb_len = 0,
 474                         .hfmin = 30000,
 475                         .hfmax = 70000,
 476                         .vfmin = 60,
 477                         .vfmax = 60,
 478                         .dclkmin = 6000000,
 479                         .dclkmax = 28000000,
 480                         .input = FB_DISP_RGB,
 481                 },
 482                 .mode_screen            = 0x27fbff80,
 483                 .mode_horztiming        = 0x00cdb2c7,
 484                 .mode_verttiming        = 0x00600002,
 485                 .mode_clkcontrol        = 0x000A0000, /* /1 */
 486                 .mode_pwmdiv            = 0x00000000,
 487                 .mode_pwmhi             = 0x00000000,
 488                 .mode_outmask   = 0x00FFFFFF,
 489                 .mode_fifoctrl  = 0x2f2f2f2f,
 490                 .mode_backlight = 0x00000000,
 491                 .lcdclk         = 120,
 492                 1280, 1280,
 493                 1024, 1024,
 494         },
 495
 496         [5] = { /* Samsung 1024x768 TFT */
 497                 .name = "Samsung_1024x768_TFT",
 498                 .monspecs = {
 499                         .modedb = NULL,
 500                         .modedb_len = 0,
 501                         .hfmin = 30000,
 502                         .hfmax = 70000,
 503                         .vfmin = 60,
 504                         .vfmax = 60,
 505                         .dclkmin = 6000000,
 506                         .dclkmax = 28000000,
 507                         .input = FB_DISP_RGB,
 508                 },
 509                 .mode_screen            = 0x1ffaff80,
 510                 .mode_horztiming        = 0x018cc677,
 511                 .mode_verttiming        = 0x00241217,
 512                 .mode_clkcontrol        = 0x00000000, /* SCB 0x1 /4=24Mhz */
 513                 .mode_pwmdiv            = 0x8000063f, /* SCB 0x0 */
 514                 .mode_pwmhi             = 0x03400000, /* SCB 0x0 */
 515                 .mode_outmask   = 0x00FFFFFF,
 516                 .mode_fifoctrl  = 0x2f2f2f2f,
 517                 .mode_backlight = 0x00000000,
 518                 .lcdclk         = 96,
 519                 1024, 1024,
 520                 768, 768,
 521         },
 522
 523         [6] = { /* Toshiba 640x480 TFT */
 524                 .name = "Toshiba_640x480_TFT",
 525                 .monspecs = {
 526                         .modedb = NULL,
 527                         .modedb_len = 0,
 528                         .hfmin = 30000,
 529                         .hfmax = 70000,
 530                         .vfmin = 60,
 531                         .vfmax = 60,
 532                         .dclkmin = 6000000,
 533                         .dclkmax = 28000000,
 534                         .input = FB_DISP_RGB,
 535                 },
 536                 .mode_screen            = LCD_SCREEN_SX_N(640) |
 537                         LCD_SCREEN_SY_N(480),
 538                 .mode_horztiming        = LCD_HORZTIMING_HPW_N(96) |
 539                         LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
 540                 .mode_verttiming        = LCD_VERTTIMING_VPW_N(2) |
 541                         LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
 542                 .mode_clkcontrol        = 0x00000000, /* /4=24Mhz */
 543                 .mode_pwmdiv            = 0x8000063f,
 544                 .mode_pwmhi             = 0x03400000,
 545                 .mode_outmask   = 0x00fcfcfc,
 546                 .mode_fifoctrl  = 0x2f2f2f2f,
 547                 .mode_backlight = 0x00000000,
 548                 .lcdclk         = 96,
 549                 640, 480,
 550                 640, 480,
 551         },
 552
 553         [7] = { /* Sharp 320x240 TFT */
 554                 .name = "Sharp_320x240_TFT",
 555                 .monspecs = {
 556                         .modedb = NULL,
 557                         .modedb_len = 0,
 558                         .hfmin = 12500,
 559                         .hfmax = 20000,
 560                         .vfmin = 38,
 561                         .vfmax = 81,
 562                         .dclkmin = 4500000,
 563                         .dclkmax = 6800000,
 564                         .input = FB_DISP_RGB,
 565                 },
 566                 .mode_screen            = LCD_SCREEN_SX_N(320) |
 567                         LCD_SCREEN_SY_N(240),
 568                 .mode_horztiming        = LCD_HORZTIMING_HPW_N(60) |
 569                         LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
 570                 .mode_verttiming        = LCD_VERTTIMING_VPW_N(2) |
 571                         LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
 572                 .mode_clkcontrol        = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
 573                 .mode_pwmdiv            = 0x8000063f,
 574                 .mode_pwmhi             = 0x03400000,
 575                 .mode_outmask   = 0x00fcfcfc,
 576                 .mode_fifoctrl  = 0x2f2f2f2f,
 577                 .mode_backlight = 0x00000000,
 578                 .lcdclk         = 96, /* 96MHz AUXPLL */
 579                 320, 320,
 580                 240, 240,
 581         },
 582
 583         [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
 584                 .name = "Toppoly_TD070WGCB2",
 585                 .monspecs = {
 586                         .modedb = NULL,
 587                         .modedb_len = 0,
 588                         .hfmin = 30000,
 589                         .hfmax = 70000,
 590                         .vfmin = 60,
 591                         .vfmax = 60,
 592                         .dclkmin = 6000000,
 593                         .dclkmax = 28000000,
 594                         .input = FB_DISP_RGB,
 595                 },
 596                 .mode_screen            = LCD_SCREEN_SX_N(856) |
 597                         LCD_SCREEN_SY_N(480),
 598                 .mode_horztiming        = LCD_HORZTIMING_HND2_N(43) |
 599                         LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
 600                 .mode_verttiming        = LCD_VERTTIMING_VND2_N(20) |
 601                         LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
 602                 .mode_clkcontrol        = 0x00020001, /* /4=24Mhz */
 603                 .mode_pwmdiv            = 0x8000063f,
 604                 .mode_pwmhi             = 0x03400000,
 605                 .mode_outmask   = 0x00fcfcfc,
 606                 .mode_fifoctrl  = 0x2f2f2f2f,
 607                 .mode_backlight = 0x00000000,
 608                 .lcdclk         = 96,
 609                 856, 856,
 610                 480, 480,
 611         },
 612         [9] = {
 613                 .name = "DB1300_800x480",
 614                 .monspecs = {
 615                         .modedb = NULL,
 616                         .modedb_len = 0,
 617                         .hfmin = 30000,
 618                         .hfmax = 70000,
 619                         .vfmin = 60,
 620                         .vfmax = 60,
 621                         .dclkmin = 6000000,
 622                         .dclkmax = 28000000,
 623                         .input = FB_DISP_RGB,
 624                 },
 625                 .mode_screen            = LCD_SCREEN_SX_N(800) |
 626                                           LCD_SCREEN_SY_N(480),
 627                 .mode_horztiming        = LCD_HORZTIMING_HPW_N(5) |
 628                                           LCD_HORZTIMING_HND1_N(16) |
 629                                           LCD_HORZTIMING_HND2_N(8),
 630                 .mode_verttiming        = LCD_VERTTIMING_VPW_N(4) |
 631                                           LCD_VERTTIMING_VND1_N(8) |
 632                                           LCD_VERTTIMING_VND2_N(5),
 633                 .mode_clkcontrol        = LCD_CLKCONTROL_PCD_N(1) |
 634                                           LCD_CLKCONTROL_IV |
 635                                           LCD_CLKCONTROL_IH,
 636                 .mode_pwmdiv            = 0x00000000,
 637                 .mode_pwmhi             = 0x00000000,
 638                 .mode_outmask           = 0x00FFFFFF,
 639                 .mode_fifoctrl          = 0x2f2f2f2f,
 640                 .mode_backlight         = 0x00000000,
 641                 .lcdclk                 = 96,
 642                 800, 800,
 643                 480, 480,
 644         },
 645 };
 646
 647 #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
 648
 649 /********************************************************************/
 650
 651 static int winbpp (unsigned int winctrl1)
 652 {
 653         int bits = 0;
 654
 655         /* how many bits are needed for each pixel format */
 656         switch (winctrl1 & LCD_WINCTRL1_FRM) {
 657         case LCD_WINCTRL1_FRM_1BPP:
 658                 bits = 1;
 659                 break;
 660         case LCD_WINCTRL1_FRM_2BPP:
 661                 bits = 2;
 662                 break;
 663         case LCD_WINCTRL1_FRM_4BPP:
 664                 bits = 4;
 665                 break;
 666         case LCD_WINCTRL1_FRM_8BPP:
 667                 bits = 8;
 668                 break;
 669         case LCD_WINCTRL1_FRM_12BPP:
 670         case LCD_WINCTRL1_FRM_16BPP655:
 671         case LCD_WINCTRL1_FRM_16BPP565:
 672         case LCD_WINCTRL1_FRM_16BPP556:
 673         case LCD_WINCTRL1_FRM_16BPPI1555:
 674         case LCD_WINCTRL1_FRM_16BPPI5551:
 675         case LCD_WINCTRL1_FRM_16BPPA1555:
 676         case LCD_WINCTRL1_FRM_16BPPA5551:
 677                 bits = 16;
 678                 break;
 679         case LCD_WINCTRL1_FRM_24BPP:
 680         case LCD_WINCTRL1_FRM_32BPP:
 681                 bits = 32;
 682                 break;
 683         }
 684
 685         return bits;
 686 }
 687
 688 static int fbinfo2index (struct fb_info *fb_info)
 689 {
 690         int i;
 691
 692         for (i = 0; i < device_count; ++i) {
 693                 if (fb_info == _au1200fb_infos[i])
 694                         return i;
 695         }
 696         printk("au1200fb: ERROR: fbinfo2index failed!\n");
 697         return -1;
 698 }
 699
 700 static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
 701         int xpos, int ypos)
 702 {
 703         uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
 704         int xsz, ysz;
 705
 706         /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
 707
 708         winctrl0 = lcd->window[plane].winctrl0;
 709         winctrl1 = lcd->window[plane].winctrl1;
 710         winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
 711         winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
 712
 713         /* Check for off-screen adjustments */
 714         xsz = win->w[plane].xres;
 715         ysz = win->w[plane].yres;
 716         if ((xpos + win->w[plane].xres) > panel->Xres) {
 717                 /* Off-screen to the right */
 718                 xsz = panel->Xres - xpos; /* off by 1 ??? */
 719                 /*printk("off screen right\n");*/
 720         }
 721
 722         if ((ypos + win->w[plane].yres) > panel->Yres) {
 723                 /* Off-screen to the bottom */
 724                 ysz = panel->Yres - ypos; /* off by 1 ??? */
 725                 /*printk("off screen bottom\n");*/
 726         }
 727
 728         if (xpos < 0) {
 729                 /* Off-screen to the left */
 730                 xsz = win->w[plane].xres + xpos;
 731                 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
 732                 xpos = 0;
 733                 /*printk("off screen left\n");*/
 734         }
 735
 736         if (ypos < 0) {
 737                 /* Off-screen to the top */
 738                 ysz = win->w[plane].yres + ypos;
 739                 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
 740                 ypos = 0;
 741                 /*printk("off screen top\n");*/
 742         }
 743
 744         /* record settings */
 745         win->w[plane].xpos = xpos;
 746         win->w[plane].ypos = ypos;
 747
 748         xsz -= 1;
 749         ysz -= 1;
 750         winctrl0 |= (xpos << 21);
 751         winctrl0 |= (ypos << 10);
 752         winctrl1 |= (xsz << 11);
 753         winctrl1 |= (ysz << 0);
 754
 755         /* Disable the window while making changes, then restore WINEN */
 756         winenable = lcd->winenable & (1 << plane);
 757         wmb(); /* drain writebuffer */
 758         lcd->winenable &= ~(1 << plane);
 759         lcd->window[plane].winctrl0 = winctrl0;
 760         lcd->window[plane].winctrl1 = winctrl1;
 761         lcd->window[plane].winbuf0 =
 762         lcd->window[plane].winbuf1 = fbdev->fb_phys;
 763         lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
 764         lcd->winenable |= winenable;
 765         wmb(); /* drain writebuffer */
 766
 767         return 0;
 768 }
 769
 770 static void au1200_setpanel(struct panel_settings *newpanel,
 771                             struct au1200fb_platdata *pd)
 772 {
 773         /*
 774          * Perform global setup/init of LCD controller
 775          */
 776         uint32 winenable;
 777
 778         /* Make sure all windows disabled */
 779         winenable = lcd->winenable;
 780         lcd->winenable = 0;
 781         wmb(); /* drain writebuffer */
 782         /*
 783          * Ensure everything is disabled before reconfiguring
 784          */
 785         if (lcd->screen & LCD_SCREEN_SEN) {
 786                 /* Wait for vertical sync period */
 787                 lcd->intstatus = LCD_INT_SS;
 788                 while ((lcd->intstatus & LCD_INT_SS) == 0)
 789                         ;
 790
 791                 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
 792
 793                 do {
 794                         lcd->intstatus = lcd->intstatus; /*clear interrupts*/
 795                         wmb(); /* drain writebuffer */
 796                 /*wait for controller to shut down*/
 797                 } while ((lcd->intstatus & LCD_INT_SD) == 0);
 798
 799                 /* Call shutdown of current panel (if up) */
 800                 /* this must occur last, because if an external clock is driving
 801                     the controller, the clock cannot be turned off before first
 802                         shutting down the controller.
 803                  */
 804                 if (pd->panel_shutdown)
 805                         pd->panel_shutdown();
 806         }
 807
 808         /* Newpanel == NULL indicates a shutdown operation only */
 809         if (newpanel == NULL)
 810                 return;
 811
 812         panel = newpanel;
 813
 814         printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
 815
 816         /*
 817          * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
 818          */
 819         if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
 820         {
 821                 struct clk *c = clk_get(NULL, "lcd_intclk");
 822                 long r, pc = panel->lcdclk * 1000000;
 823
 824                 if (!IS_ERR(c)) {
 825                         r = clk_round_rate(c, pc);
 826                         if ((pc - r) < (pc / 10)) {     /* 10% slack */
 827                                 clk_set_rate(c, r);
 828                                 clk_prepare_enable(c);
 829                         }
 830                         clk_put(c);
 831                 }
 832         }
 833
 834         /*
 835          * Configure panel timings
 836          */
 837         lcd->screen = panel->mode_screen;
 838         lcd->horztiming = panel->mode_horztiming;
 839         lcd->verttiming = panel->mode_verttiming;
 840         lcd->clkcontrol = panel->mode_clkcontrol;
 841         lcd->pwmdiv = panel->mode_pwmdiv;
 842         lcd->pwmhi = panel->mode_pwmhi;
 843         lcd->outmask = panel->mode_outmask;
 844         lcd->fifoctrl = panel->mode_fifoctrl;
 845         wmb(); /* drain writebuffer */
 846
 847         /* fixme: Check window settings to make sure still valid
 848          * for new geometry */
 849 #if 0
 850         au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
 851         au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
 852         au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
 853         au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
 854 #endif
 855         lcd->winenable = winenable;
 856
 857         /*
 858          * Re-enable screen now that it is configured
 859          */
 860         lcd->screen |= LCD_SCREEN_SEN;
 861         wmb(); /* drain writebuffer */
 862
 863         /* Call init of panel */
 864         if (pd->panel_init)
 865                 pd->panel_init();
 866
 867         /* FIX!!!! not appropriate on panel change!!! Global setup/init */
 868         lcd->intenable = 0;
 869         lcd->intstatus = ~0;
 870         lcd->backcolor = win->mode_backcolor;
 871
 872         /* Setup Color Key - FIX!!! */
 873         lcd->colorkey = win->mode_colorkey;
 874         lcd->colorkeymsk = win->mode_colorkeymsk;
 875
 876         /* Setup HWCursor - FIX!!! Need to support this eventually */
 877         lcd->hwc.cursorctrl = 0;
 878         lcd->hwc.cursorpos = 0;
 879         lcd->hwc.cursorcolor0 = 0;
 880         lcd->hwc.cursorcolor1 = 0;
 881         lcd->hwc.cursorcolor2 = 0;
 882         lcd->hwc.cursorcolor3 = 0;
 883
 884
 885 #if 0
 886 #define D(X) printk("%25s: %08X\n", #X, X)
 887         D(lcd->screen);
 888         D(lcd->horztiming);
 889         D(lcd->verttiming);
 890         D(lcd->clkcontrol);
 891         D(lcd->pwmdiv);
 892         D(lcd->pwmhi);
 893         D(lcd->outmask);
 894         D(lcd->fifoctrl);
 895         D(lcd->window[0].winctrl0);
 896         D(lcd->window[0].winctrl1);
 897         D(lcd->window[0].winctrl2);
 898         D(lcd->window[0].winbuf0);
 899         D(lcd->window[0].winbuf1);
 900         D(lcd->window[0].winbufctrl);
 901         D(lcd->window[1].winctrl0);
 902         D(lcd->window[1].winctrl1);
 903         D(lcd->window[1].winctrl2);
 904         D(lcd->window[1].winbuf0);
 905         D(lcd->window[1].winbuf1);
 906         D(lcd->window[1].winbufctrl);
 907         D(lcd->window[2].winctrl0);
 908         D(lcd->window[2].winctrl1);
 909         D(lcd->window[2].winctrl2);
 910         D(lcd->window[2].winbuf0);
 911         D(lcd->window[2].winbuf1);
 912         D(lcd->window[2].winbufctrl);
 913         D(lcd->window[3].winctrl0);
 914         D(lcd->window[3].winctrl1);
 915         D(lcd->window[3].winctrl2);
 916         D(lcd->window[3].winbuf0);
 917         D(lcd->window[3].winbuf1);
 918         D(lcd->window[3].winbufctrl);
 919         D(lcd->winenable);
 920         D(lcd->intenable);
 921         D(lcd->intstatus);
 922         D(lcd->backcolor);
 923         D(lcd->winenable);
 924         D(lcd->colorkey);
 925     D(lcd->colorkeymsk);
 926         D(lcd->hwc.cursorctrl);
 927         D(lcd->hwc.cursorpos);
 928         D(lcd->hwc.cursorcolor0);
 929         D(lcd->hwc.cursorcolor1);
 930         D(lcd->hwc.cursorcolor2);
 931         D(lcd->hwc.cursorcolor3);
 932 #endif
 933 }
 934
 935 static void au1200_setmode(struct au1200fb_device *fbdev)
 936 {
 937         int plane = fbdev->plane;
 938         /* Window/plane setup */
 939         lcd->window[plane].winctrl1 = ( 0
 940                 | LCD_WINCTRL1_PRI_N(plane)
 941                 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
 942                 ) ;
 943
 944         au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
 945
 946         lcd->window[plane].winctrl2 = ( 0
 947                 | LCD_WINCTRL2_CKMODE_00
 948                 | LCD_WINCTRL2_DBM
 949                 | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length)
 950                 | LCD_WINCTRL2_SCX_1
 951                 | LCD_WINCTRL2_SCY_1
 952                 ) ;
 953         lcd->winenable |= win->w[plane].mode_winenable;
 954         wmb(); /* drain writebuffer */
 955 }
 956
 957
 958 /* Inline helpers */
 959
 960 /*#define panel_is_dual(panel)  ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
 961 /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
 962
 963 #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
 964
 965 /* Bitfields format supported by the controller. */
 966 static struct fb_bitfield rgb_bitfields[][4] = {
 967         /*     Red,        Green,        Blue,       Transp   */
 968         [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
 969                 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
 970
 971         [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
 972                 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
 973
 974         [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
 975                 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
 976
 977         [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
 978                 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
 979
 980         [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
 981                 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
 982
 983         [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
 984                 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
 985
 986         [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
 987                 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
 988
 989         [LCD_WINCTRL1_FRM_24BPP >> 25] =
 990                 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
 991
 992         [LCD_WINCTRL1_FRM_32BPP >> 25] =
 993                 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
 994 };
 995
 996 /*-------------------------------------------------------------------------*/
 997
 998 /* Helpers */
 999
1000 static void au1200fb_update_fbinfo(struct fb_info *fbi)
1001 {
1002         /* FIX!!!! This also needs to take the window pixel format into account!!! */
1003
1004         /* Update var-dependent FB info */
1005         if (panel_is_color(panel)) {
1006                 if (fbi->var.bits_per_pixel <= 8) {
1007                         /* palettized */
1008                         fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1009                         fbi->fix.line_length = fbi->var.xres_virtual /
1010                                 (8/fbi->var.bits_per_pixel);
1011                 } else {
1012                         /* non-palettized */
1013                         fbi->fix.visual = FB_VISUAL_TRUECOLOR;
1014                         fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
1015                 }
1016         } else {
1017                 /* mono FIX!!! mono 8 and 4 bits */
1018                 fbi->fix.visual = FB_VISUAL_MONO10;
1019                 fbi->fix.line_length = fbi->var.xres_virtual / 8;
1020         }
1021
1022         fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
1023         print_dbg("line length: %d\n", fbi->fix.line_length);
1024         print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
1025 }
1026
1027 /*-------------------------------------------------------------------------*/
1028
1029 /* AU1200 framebuffer driver */
1030
1031 /* fb_check_var
1032  * Validate var settings with hardware restrictions and modify it if necessary
1033  */
1034 static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
1035         struct fb_info *fbi)
1036 {
1037         struct au1200fb_device *fbdev = fbi->par;
1038         u32 pixclock;
1039         int screen_size, plane;
1040
1041         plane = fbdev->plane;
1042
1043         /* Make sure that the mode respect all LCD controller and
1044          * panel restrictions. */
1045         var->xres = win->w[plane].xres;
1046         var->yres = win->w[plane].yres;
1047
1048         /* No need for virtual resolution support */
1049         var->xres_virtual = var->xres;
1050         var->yres_virtual = var->yres;
1051
1052         var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
1053
1054         screen_size = var->xres_virtual * var->yres_virtual;
1055         if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
1056         else screen_size /= (8/var->bits_per_pixel);
1057
1058         if (fbdev->fb_len < screen_size)
1059                 return -EINVAL; /* Virtual screen is to big, abort */
1060
1061         /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
1062         /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
1063          * clock can only be obtain by dividing this value by an even integer.
1064          * Fallback to a slower pixel clock if necessary. */
1065         pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
1066         pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2);
1067
1068         if (AU1200_LCD_MAX_CLK % pixclock) {
1069                 int diff = AU1200_LCD_MAX_CLK % pixclock;
1070                 pixclock -= diff;
1071         }
1072
1073         var->pixclock = KHZ2PICOS(pixclock/1000);
1074 #if 0
1075         if (!panel_is_active(panel)) {
1076                 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
1077
1078                 if (!panel_is_color(panel)
1079                         && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
1080                         /* STN 8bit mono panel support is up to 6MHz pixclock */
1081                         var->pixclock = KHZ2PICOS(6000);
1082                 } else if (!pcd) {
1083                         /* Other STN panel support is up to 12MHz  */
1084                         var->pixclock = KHZ2PICOS(12000);
1085                 }
1086         }
1087 #endif
1088         /* Set bitfield accordingly */
1089         switch (var->bits_per_pixel) {
1090                 case 16:
1091                 {
1092                         /* 16bpp True color.
1093                          * These must be set to MATCH WINCTRL[FORM] */
1094                         int idx;
1095                         idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1096                         var->red    = rgb_bitfields[idx][0];
1097                         var->green  = rgb_bitfields[idx][1];
1098                         var->blue   = rgb_bitfields[idx][2];
1099                         var->transp = rgb_bitfields[idx][3];
1100                         break;
1101                 }
1102
1103                 case 32:
1104                 {
1105                         /* 32bpp True color.
1106                          * These must be set to MATCH WINCTRL[FORM] */
1107                         int idx;
1108                         idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1109                         var->red    = rgb_bitfields[idx][0];
1110                         var->green  = rgb_bitfields[idx][1];
1111                         var->blue   = rgb_bitfields[idx][2];
1112                         var->transp = rgb_bitfields[idx][3];
1113                         break;
1114                 }
1115                 default:
1116                         print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
1117                         return -EINVAL;
1118         }
1119
1120         return 0;
1121 }
1122
1123 /* fb_set_par
1124  * Set hardware with var settings. This will enable the controller with a
1125  * specific mode, normally validated with the fb_check_var method
1126  */
1127 static int au1200fb_fb_set_par(struct fb_info *fbi)
1128 {
1129         struct au1200fb_device *fbdev = fbi->par;
1130
1131         au1200fb_update_fbinfo(fbi);
1132         au1200_setmode(fbdev);
1133
1134         return 0;
1135 }
1136
1137 /* fb_setcolreg
1138  * Set color in LCD palette.
1139  */
1140 static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
1141         unsigned blue, unsigned transp, struct fb_info *fbi)
1142 {
1143         volatile u32 *palette = lcd->palette;
1144         u32 value;
1145
1146         if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
1147                 return -EINVAL;
1148
1149         if (fbi->var.grayscale) {
1150                 /* Convert color to grayscale */
1151                 red = green = blue =
1152                         (19595 * red + 38470 * green + 7471 * blue) >> 16;
1153         }
1154
1155         if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
1156                 /* Place color in the pseudopalette */
1157                 if (regno > 16)
1158                         return -EINVAL;
1159
1160                 palette = (u32*) fbi->pseudo_palette;
1161
1162                 red   >>= (16 - fbi->var.red.length);
1163                 green >>= (16 - fbi->var.green.length);
1164                 blue  >>= (16 - fbi->var.blue.length);
1165
1166                 value = (red   << fbi->var.red.offset)  |
1167                         (green << fbi->var.green.offset)|
1168                         (blue  << fbi->var.blue.offset);
1169                 value &= 0xFFFF;
1170
1171         } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
1172                 /* COLOR TFT PALLETTIZED (use RGB 565) */
1173                 value = (red & 0xF800)|((green >> 5) &
1174                                 0x07E0)|((blue >> 11) & 0x001F);
1175                 value &= 0xFFFF;
1176
1177         } else if (0 /*panel_is_color(fbdev->panel)*/) {
1178                 /* COLOR STN MODE */
1179                 value = 0x1234;
1180                 value &= 0xFFF;
1181         } else {
1182                 /* MONOCHROME MODE */
1183                 value = (green >> 12) & 0x000F;
1184                 value &= 0xF;
1185         }
1186
1187         palette[regno] = value;
1188
1189         return 0;
1190 }
1191
1192 /* fb_blank
1193  * Blank the screen. Depending on the mode, the screen will be
1194  * activated with the backlight color, or desactivated
1195  */
1196 static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
1197 {
1198         struct au1200fb_device *fbdev = fbi->par;
1199
1200         /* Short-circuit screen blanking */
1201         if (noblanking)
1202                 return 0;
1203
1204         switch (blank_mode) {
1205
1206         case FB_BLANK_UNBLANK:
1207         case FB_BLANK_NORMAL:
1208                 /* printk("turn on panel\n"); */
1209                 au1200_setpanel(panel, fbdev->pd);
1210                 break;
1211         case FB_BLANK_VSYNC_SUSPEND:
1212         case FB_BLANK_HSYNC_SUSPEND:
1213         case FB_BLANK_POWERDOWN:
1214                 /* printk("turn off panel\n"); */
1215                 au1200_setpanel(NULL, fbdev->pd);
1216                 break;
1217         default:
1218                 break;
1219
1220         }
1221
1222         /* FB_BLANK_NORMAL is a soft blank */
1223         return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
1224 }
1225
1226 /* fb_mmap
1227  * Map video memory in user space. We don't use the generic fb_mmap
1228  * method mainly to allow the use of the TLB streaming flag (CCA=6)
1229  */
1230 static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1231 {
1232         struct au1200fb_device *fbdev = info->par;
1233
1234         vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1235         pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
1236
1237         return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len);
1238 }
1239
1240 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1241 {
1242
1243         unsigned int hi1, divider;
1244
1245         /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
1246
1247         if (pdata->flags & SCREEN_BACKCOLOR)
1248                 lcd->backcolor = pdata->backcolor;
1249
1250         if (pdata->flags & SCREEN_BRIGHTNESS) {
1251
1252                 // limit brightness pwm duty to >= 30/1600
1253                 if (pdata->brightness < 30) {
1254                         pdata->brightness = 30;
1255                 }
1256                 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1257                 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
1258                 lcd->pwmhi &= 0xFFFF;
1259                 lcd->pwmhi |= (hi1 << 16);
1260         }
1261
1262         if (pdata->flags & SCREEN_COLORKEY)
1263                 lcd->colorkey = pdata->colorkey;
1264
1265         if (pdata->flags & SCREEN_MASK)
1266                 lcd->colorkeymsk = pdata->mask;
1267         wmb(); /* drain writebuffer */
1268 }
1269
1270 static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1271 {
1272         unsigned int hi1, divider;
1273
1274         pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
1275         pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
1276
1277         pdata->backcolor = lcd->backcolor;
1278         pdata->colorkey = lcd->colorkey;
1279         pdata->mask = lcd->colorkeymsk;
1280
1281         // brightness
1282         hi1 = (lcd->pwmhi >> 16) + 1;
1283         divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1284         pdata->brightness = ((hi1 << 8) / divider) - 1;
1285         wmb(); /* drain writebuffer */
1286 }
1287
1288 static void set_window(unsigned int plane,
1289         struct au1200_lcd_window_regs_t *pdata)
1290 {
1291         unsigned int val, bpp;
1292
1293         /* Window control register 0 */
1294         if (pdata->flags & WIN_POSITION) {
1295                 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
1296                                 LCD_WINCTRL0_OY);
1297                 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
1298                 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
1299                 lcd->window[plane].winctrl0 = val;
1300         }
1301         if (pdata->flags & WIN_ALPHA_COLOR) {
1302                 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
1303                 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
1304                 lcd->window[plane].winctrl0 = val;
1305         }
1306         if (pdata->flags & WIN_ALPHA_MODE) {
1307                 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
1308                 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
1309                 lcd->window[plane].winctrl0 = val;
1310         }
1311
1312         /* Window control register 1 */
1313         if (pdata->flags & WIN_PRIORITY) {
1314                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
1315                 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
1316                 lcd->window[plane].winctrl1 = val;
1317         }
1318         if (pdata->flags & WIN_CHANNEL) {
1319                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
1320                 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
1321                 lcd->window[plane].winctrl1 = val;
1322         }
1323         if (pdata->flags & WIN_BUFFER_FORMAT) {
1324                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
1325                 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
1326                 lcd->window[plane].winctrl1 = val;
1327         }
1328         if (pdata->flags & WIN_COLOR_ORDER) {
1329                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
1330                 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
1331                 lcd->window[plane].winctrl1 = val;
1332         }
1333         if (pdata->flags & WIN_PIXEL_ORDER) {
1334                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
1335                 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
1336                 lcd->window[plane].winctrl1 = val;
1337         }
1338         if (pdata->flags & WIN_SIZE) {
1339                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
1340                                 LCD_WINCTRL1_SZY);
1341                 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
1342                 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
1343                 lcd->window[plane].winctrl1 = val;
1344                 /* program buffer line width */
1345                 bpp = winbpp(val) / 8;
1346                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
1347                 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
1348                 lcd->window[plane].winctrl2 = val;
1349         }
1350
1351         /* Window control register 2 */
1352         if (pdata->flags & WIN_COLORKEY_MODE) {
1353                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
1354                 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
1355                 lcd->window[plane].winctrl2 = val;
1356         }
1357         if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
1358                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
1359                 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
1360                 lcd->window[plane].winctrl2 = val;
1361         }
1362         if (pdata->flags & WIN_RAM_ARRAY_MODE) {
1363                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
1364                 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
1365                 lcd->window[plane].winctrl2 = val;
1366         }
1367
1368         /* Buffer line width programmed with WIN_SIZE */
1369
1370         if (pdata->flags & WIN_BUFFER_SCALE) {
1371                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
1372                                 LCD_WINCTRL2_SCY);
1373                 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
1374                 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
1375                 lcd->window[plane].winctrl2 = val;
1376         }
1377
1378         if (pdata->flags & WIN_ENABLE) {
1379                 val = lcd->winenable;
1380                 val &= ~(1<<plane);
1381                 val |= (pdata->enable & 1) << plane;
1382                 lcd->winenable = val;
1383         }
1384         wmb(); /* drain writebuffer */
1385 }
1386
1387 static void get_window(unsigned int plane,
1388         struct au1200_lcd_window_regs_t *pdata)
1389 {
1390         /* Window control register 0 */
1391         pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
1392         pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
1393         pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
1394         pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
1395
1396         /* Window control register 1 */
1397         pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
1398         pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
1399         pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1400         pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
1401         pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
1402         pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
1403         pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
1404
1405         /* Window control register 2 */
1406         pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
1407         pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
1408         pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
1409
1410         pdata->enable = (lcd->winenable >> plane) & 1;
1411         wmb(); /* drain writebuffer */
1412 }
1413
1414 static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
1415                           unsigned long arg)
1416 {
1417         struct au1200fb_device *fbdev = info->par;
1418         int plane;
1419         int val;
1420
1421         plane = fbinfo2index(info);
1422         print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
1423
1424         if (cmd == AU1200_LCD_FB_IOCTL) {
1425                 struct au1200_lcd_iodata_t iodata;
1426
1427                 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
1428                         return -EFAULT;
1429
1430                 print_dbg("FB IOCTL called\n");
1431
1432                 switch (iodata.subcmd) {
1433                 case AU1200_LCD_SET_SCREEN:
1434                         print_dbg("AU1200_LCD_SET_SCREEN\n");
1435                         set_global(cmd, &iodata.global);
1436                         break;
1437
1438                 case AU1200_LCD_GET_SCREEN:
1439                         print_dbg("AU1200_LCD_GET_SCREEN\n");
1440                         get_global(cmd, &iodata.global);
1441                         break;
1442
1443                 case AU1200_LCD_SET_WINDOW:
1444                         print_dbg("AU1200_LCD_SET_WINDOW\n");
1445                         set_window(plane, &iodata.window);
1446                         break;
1447
1448                 case AU1200_LCD_GET_WINDOW:
1449                         print_dbg("AU1200_LCD_GET_WINDOW\n");
1450                         get_window(plane, &iodata.window);
1451                         break;
1452
1453                 case AU1200_LCD_SET_PANEL:
1454                         print_dbg("AU1200_LCD_SET_PANEL\n");
1455                         if ((iodata.global.panel_choice >= 0) &&
1456                                         (iodata.global.panel_choice <
1457                                          NUM_PANELS))
1458                         {
1459                                 struct panel_settings *newpanel;
1460                                 panel_index = iodata.global.panel_choice;
1461                                 newpanel = &known_lcd_panels[panel_index];
1462                                 au1200_setpanel(newpanel, fbdev->pd);
1463                         }
1464                         break;
1465
1466                 case AU1200_LCD_GET_PANEL:
1467                         print_dbg("AU1200_LCD_GET_PANEL\n");
1468                         iodata.global.panel_choice = panel_index;
1469                         break;
1470
1471                 default:
1472                         return -EINVAL;
1473                 }
1474
1475                 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
1476                 if (val) {
1477                         print_dbg("error: could not copy %d bytes\n", val);
1478                         return -EFAULT;
1479                 }
1480         }
1481
1482         return 0;
1483 }
1484
1485
1486 static struct fb_ops au1200fb_fb_ops = {
1487         .owner          = THIS_MODULE,
1488         .fb_check_var   = au1200fb_fb_check_var,
1489         .fb_set_par     = au1200fb_fb_set_par,
1490         .fb_setcolreg   = au1200fb_fb_setcolreg,
1491         .fb_blank       = au1200fb_fb_blank,
1492         .fb_fillrect    = sys_fillrect,
1493         .fb_copyarea    = sys_copyarea,
1494         .fb_imageblit   = sys_imageblit,
1495         .fb_read        = fb_sys_read,
1496         .fb_write       = fb_sys_write,
1497         .fb_sync        = NULL,
1498         .fb_ioctl       = au1200fb_ioctl,
1499         .fb_mmap        = au1200fb_fb_mmap,
1500 };
1501
1502 /*-------------------------------------------------------------------------*/
1503
1504 static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id)
1505 {
1506         /* Nothing to do for now, just clear any pending interrupt */
1507         lcd->intstatus = lcd->intstatus;
1508         wmb(); /* drain writebuffer */
1509
1510         return IRQ_HANDLED;
1511 }
1512
1513 /*-------------------------------------------------------------------------*/
1514
1515 /* AU1200 LCD device probe helpers */
1516
1517 static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
1518 {
1519         struct fb_info *fbi = fbdev->fb_info;
1520         int bpp;
1521
1522         fbi->fbops = &au1200fb_fb_ops;
1523
1524         bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
1525
1526         /* Copy monitor specs from panel data */
1527         /* fixme: we're setting up LCD controller windows, so these dont give a
1528         damn as to what the monitor specs are (the panel itself does, but that
1529         isn't done here...so maybe need a generic catchall monitor setting??? */
1530         memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
1531
1532         /* We first try the user mode passed in argument. If that failed,
1533          * or if no one has been specified, we default to the first mode of the
1534          * panel list. Note that after this call, var data will be set */
1535         if (!fb_find_mode(&fbi->var,
1536                           fbi,
1537                           NULL, /* drv_info.opt_mode, */
1538                           fbi->monspecs.modedb,
1539                           fbi->monspecs.modedb_len,
1540                           fbi->monspecs.modedb,
1541                           bpp)) {
1542
1543                 print_err("Cannot find valid mode for panel %s", panel->name);
1544                 return -EFAULT;
1545         }
1546
1547         fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL);
1548         if (!fbi->pseudo_palette) {
1549                 return -ENOMEM;
1550         }
1551
1552         if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
1553                 print_err("Fail to allocate colormap (%d entries)",
1554                            AU1200_LCD_NBR_PALETTE_ENTRIES);
1555                 kfree(fbi->pseudo_palette);
1556                 return -EFAULT;
1557         }
1558
1559         strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
1560         fbi->fix.smem_start = fbdev->fb_phys;
1561         fbi->fix.smem_len = fbdev->fb_len;
1562         fbi->fix.type = FB_TYPE_PACKED_PIXELS;
1563         fbi->fix.xpanstep = 0;
1564         fbi->fix.ypanstep = 0;
1565         fbi->fix.mmio_start = 0;
1566         fbi->fix.mmio_len = 0;
1567         fbi->fix.accel = FB_ACCEL_NONE;
1568
1569         fbi->screen_base = (char __iomem *) fbdev->fb_mem;
1570
1571         au1200fb_update_fbinfo(fbi);
1572
1573         return 0;
1574 }
1575
1576 /*-------------------------------------------------------------------------*/
1577
1578
1579 static int au1200fb_setup(struct au1200fb_platdata *pd)
1580 {
1581         char *options = NULL;
1582         char *this_opt, *endptr;
1583         int num_panels = ARRAY_SIZE(known_lcd_panels);
1584         int panel_idx = -1;
1585
1586         fb_get_options(DRIVER_NAME, &options);
1587
1588         if (!options)
1589                 goto out;
1590
1591         while ((this_opt = strsep(&options, ",")) != NULL) {
1592                 /* Panel option - can be panel name,
1593                  * "bs" for board-switch, or number/index */
1594                 if (!strncmp(this_opt, "panel:", 6)) {
1595                         int i;
1596                         long int li;
1597                         char *endptr;
1598                         this_opt += 6;
1599                         /* First check for index, which allows
1600                          * to short circuit this mess */
1601                         li = simple_strtol(this_opt, &endptr, 0);
1602                         if (*endptr == '\0')
1603                                 panel_idx = (int)li;
1604                         else if (strcmp(this_opt, "bs") == 0)
1605                                 panel_idx = pd->panel_index();
1606                         else {
1607                                 for (i = 0; i < num_panels; i++) {
1608                                         if (!strcmp(this_opt,
1609                                                     known_lcd_panels[i].name)) {
1610                                                 panel_idx = i;
1611                                                 break;
1612                                         }
1613                                 }
1614                         }
1615                         if ((panel_idx < 0) || (panel_idx >= num_panels))
1616                                 print_warn("Panel %s not supported!", this_opt);
1617                         else
1618                                 panel_index = panel_idx;
1619
1620                 } else if (strncmp(this_opt, "nohwcursor", 10) == 0)
1621                         nohwcursor = 1;
1622                 else if (strncmp(this_opt, "devices:", 8) == 0) {
1623                         this_opt += 8;
1624                         device_count = simple_strtol(this_opt, &endptr, 0);
1625                         if ((device_count < 0) ||
1626                             (device_count > MAX_DEVICE_COUNT))
1627                                 device_count = MAX_DEVICE_COUNT;
1628                 } else if (strncmp(this_opt, "wincfg:", 7) == 0) {
1629                         this_opt += 7;
1630                         window_index = simple_strtol(this_opt, &endptr, 0);
1631                         if ((window_index < 0) ||
1632                             (window_index >= ARRAY_SIZE(windows)))
1633                                 window_index = DEFAULT_WINDOW_INDEX;
1634                 } else if (strncmp(this_opt, "off", 3) == 0)
1635                         return 1;
1636                 else
1637                         print_warn("Unsupported option \"%s\"", this_opt);
1638         }
1639
1640 out:
1641         return 0;
1642 }
1643
1644 /* AU1200 LCD controller device driver */
1645 static int au1200fb_drv_probe(struct platform_device *dev)
1646 {
1647         struct au1200fb_device *fbdev;
1648         struct au1200fb_platdata *pd;
1649         struct fb_info *fbi = NULL;
1650         unsigned long page;
1651         int bpp, plane, ret, irq;
1652
1653         print_info("" DRIVER_DESC "");
1654
1655         pd = dev->dev.platform_data;
1656         if (!pd)
1657                 return -ENODEV;
1658
1659         /* Setup driver with options */
1660         if (au1200fb_setup(pd))
1661                 return -ENODEV;
1662
1663         /* Point to the panel selected */
1664         panel = &known_lcd_panels[panel_index];
1665         win = &windows[window_index];
1666
1667         printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
1668         printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
1669
1670         /* shut gcc up */
1671         ret = 0;
1672         fbdev = NULL;
1673
1674         for (plane = 0; plane < device_count; ++plane) {
1675                 bpp = winbpp(win->w[plane].mode_winctrl1);
1676                 if (win->w[plane].xres == 0)
1677                         win->w[plane].xres = panel->Xres;
1678                 if (win->w[plane].yres == 0)
1679                         win->w[plane].yres = panel->Yres;
1680
1681                 fbi = framebuffer_alloc(sizeof(struct au1200fb_device),
1682                                         &dev->dev);
1683                 if (!fbi)
1684                         goto failed;
1685
1686                 _au1200fb_infos[plane] = fbi;
1687                 fbdev = fbi->par;
1688                 fbdev->fb_info = fbi;
1689                 fbdev->pd = pd;
1690
1691                 fbdev->plane = plane;
1692
1693                 /* Allocate the framebuffer to the maximum screen size */
1694                 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
1695
1696                 fbdev->fb_mem = dmam_alloc_noncoherent(&dev->dev,
1697                                 PAGE_ALIGN(fbdev->fb_len),
1698                                 &fbdev->fb_phys, GFP_KERNEL);
1699                 if (!fbdev->fb_mem) {
1700                         print_err("fail to allocate frambuffer (size: %dK))",
1701                                   fbdev->fb_len / 1024);
1702                         return -ENOMEM;
1703                 }
1704
1705                 /*
1706                  * Set page reserved so that mmap will work. This is necessary
1707                  * since we'll be remapping normal memory.
1708                  */
1709                 for (page = (unsigned long)fbdev->fb_phys;
1710                      page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
1711                              fbdev->fb_len);
1712                      page += PAGE_SIZE) {
1713                         SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
1714                 }
1715                 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
1716                 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
1717
1718                 /* Init FB data */
1719                 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
1720                         goto failed;
1721
1722                 /* Register new framebuffer */
1723                 ret = register_framebuffer(fbi);
1724                 if (ret < 0) {
1725                         print_err("cannot register new framebuffer");
1726                         goto failed;
1727                 }
1728
1729                 au1200fb_fb_set_par(fbi);
1730
1731 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
1732                 if (plane == 0)
1733                         if (fb_prepare_logo(fbi, FB_ROTATE_UR)) {
1734                                 /* Start display and show logo on boot */
1735                                 fb_set_cmap(&fbi->cmap, fbi);
1736                                 fb_show_logo(fbi, FB_ROTATE_UR);
1737                         }
1738 #endif
1739         }
1740
1741         /* Now hook interrupt too */
1742         irq = platform_get_irq(dev, 0);
1743         ret = request_irq(irq, au1200fb_handle_irq,
1744                           IRQF_SHARED, "lcd", (void *)dev);
1745         if (ret) {
1746                 print_err("fail to request interrupt line %d (err: %d)",
1747                           irq, ret);
1748                 goto failed;
1749         }
1750
1751         platform_set_drvdata(dev, pd);
1752
1753         /* Kickstart the panel */
1754         au1200_setpanel(panel, pd);
1755
1756         return 0;
1757
1758 failed:
1759         /* NOTE: This only does the current plane/window that failed; others are still active */
1760         if (fbi) {
1761                 if (fbi->cmap.len != 0)
1762                         fb_dealloc_cmap(&fbi->cmap);
1763                 kfree(fbi->pseudo_palette);
1764         }
1765         if (plane == 0)
1766                 free_irq(AU1200_LCD_INT, (void*)dev);
1767         return ret;
1768 }
1769
1770 static int au1200fb_drv_remove(struct platform_device *dev)
1771 {
1772         struct au1200fb_platdata *pd = platform_get_drvdata(dev);
1773         struct au1200fb_device *fbdev;
1774         struct fb_info *fbi;
1775         int plane;
1776
1777         /* Turn off the panel */
1778         au1200_setpanel(NULL, pd);
1779
1780         for (plane = 0; plane < device_count; ++plane)  {
1781                 fbi = _au1200fb_infos[plane];
1782                 fbdev = fbi->par;
1783
1784                 /* Clean up all probe data */
1785                 unregister_framebuffer(fbi);
1786                 if (fbi->cmap.len != 0)
1787                         fb_dealloc_cmap(&fbi->cmap);
1788                 kfree(fbi->pseudo_palette);
1789
1790                 framebuffer_release(fbi);
1791                 _au1200fb_infos[plane] = NULL;
1792         }
1793
1794         free_irq(platform_get_irq(dev, 0), (void *)dev);
1795
1796         return 0;
1797 }
1798
1799 #ifdef CONFIG_PM
1800 static int au1200fb_drv_suspend(struct device *dev)
1801 {
1802         struct au1200fb_platdata *pd = dev_get_drvdata(dev);
1803         au1200_setpanel(NULL, pd);
1804
1805         lcd->outmask = 0;
1806         wmb(); /* drain writebuffer */
1807
1808         return 0;
1809 }
1810
1811 static int au1200fb_drv_resume(struct device *dev)
1812 {
1813         struct au1200fb_platdata *pd = dev_get_drvdata(dev);
1814         struct fb_info *fbi;
1815         int i;
1816
1817         /* Kickstart the panel */
1818         au1200_setpanel(panel, pd);
1819
1820         for (i = 0; i < device_count; i++) {
1821                 fbi = _au1200fb_infos[i];
1822                 au1200fb_fb_set_par(fbi);
1823         }
1824
1825         return 0;
1826 }
1827
1828 static const struct dev_pm_ops au1200fb_pmops = {
1829         .suspend        = au1200fb_drv_suspend,
1830         .resume         = au1200fb_drv_resume,
1831         .freeze         = au1200fb_drv_suspend,
1832         .thaw           = au1200fb_drv_resume,
1833 };
1834
1835 #define AU1200FB_PMOPS  (&au1200fb_pmops)
1836
1837 #else
1838 #define AU1200FB_PMOPS  NULL
1839 #endif /* CONFIG_PM */
1840
1841 static struct platform_driver au1200fb_driver = {
1842         .driver = {
1843                 .name   = "au1200-lcd",
1844                 .pm     = AU1200FB_PMOPS,
1845         },
1846         .probe          = au1200fb_drv_probe,
1847         .remove         = au1200fb_drv_remove,
1848 };
1849 module_platform_driver(au1200fb_driver);
1850
1851 MODULE_DESCRIPTION(DRIVER_DESC);
1852 MODULE_LICENSE("GPL");