drivers/video/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/module.h>
  34 #include <linux/platform_device.h>
  35 #include <linux/kernel.h>
  36 #include <linux/errno.h>
  37 #include <linux/string.h>
  38 #include <linux/mm.h>
  39 #include <linux/fb.h>
  40 #include <linux/init.h>
  41 #include <linux/interrupt.h>
  42 #include <linux/ctype.h>
  43 #include <linux/dma-mapping.h>
  44 #include <linux/slab.h>
  45
  46 #include <asm/mach-au1x00/au1000.h>
  47 #include "au1200fb.h"
  48
  49 #define DRIVER_NAME "au1200fb"
  50 #define DRIVER_DESC "LCD controller driver for AU1200 processors"
  51
  52 #define DEBUG 0
  53
  54 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
  55 #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
  56 #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
  57
  58 #if DEBUG
  59 #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
  60 #else
  61 #define print_dbg(f, arg...) do {} while (0)
  62 #endif
  63
  64
  65 #define AU1200_LCD_FB_IOCTL 0x46FF
  66
  67 #define AU1200_LCD_SET_SCREEN 1
  68 #define AU1200_LCD_GET_SCREEN 2
  69 #define AU1200_LCD_SET_WINDOW 3
  70 #define AU1200_LCD_GET_WINDOW 4
  71 #define AU1200_LCD_SET_PANEL  5
  72 #define AU1200_LCD_GET_PANEL  6
  73
  74 #define SCREEN_SIZE                 (1<< 1)
  75 #define SCREEN_BACKCOLOR    (1<< 2)
  76 #define SCREEN_BRIGHTNESS   (1<< 3)
  77 #define SCREEN_COLORKEY     (1<< 4)
  78 #define SCREEN_MASK         (1<< 5)
  79
  80 struct au1200_lcd_global_regs_t {
  81         unsigned int flags;
  82         unsigned int xsize;
  83         unsigned int ysize;
  84         unsigned int backcolor;
  85         unsigned int brightness;
  86         unsigned int colorkey;
  87         unsigned int mask;
  88         unsigned int panel_choice;
  89         char panel_desc[80];
  90
  91 };
  92
  93 #define WIN_POSITION            (1<< 0)
  94 #define WIN_ALPHA_COLOR         (1<< 1)
  95 #define WIN_ALPHA_MODE          (1<< 2)
  96 #define WIN_PRIORITY            (1<< 3)
  97 #define WIN_CHANNEL             (1<< 4)
  98 #define WIN_BUFFER_FORMAT       (1<< 5)
  99 #define WIN_COLOR_ORDER         (1<< 6)
 100 #define WIN_PIXEL_ORDER         (1<< 7)
 101 #define WIN_SIZE                (1<< 8)
 102 #define WIN_COLORKEY_MODE       (1<< 9)
 103 #define WIN_DOUBLE_BUFFER_MODE  (1<< 10)
 104 #define WIN_RAM_ARRAY_MODE      (1<< 11)
 105 #define WIN_BUFFER_SCALE        (1<< 12)
 106 #define WIN_ENABLE                  (1<< 13)
 107
 108 struct au1200_lcd_window_regs_t {
 109         unsigned int flags;
 110         unsigned int xpos;
 111         unsigned int ypos;
 112         unsigned int alpha_color;
 113         unsigned int alpha_mode;
 114         unsigned int priority;
 115         unsigned int channel;
 116         unsigned int buffer_format;
 117         unsigned int color_order;
 118         unsigned int pixel_order;
 119         unsigned int xsize;
 120         unsigned int ysize;
 121         unsigned int colorkey_mode;
 122         unsigned int double_buffer_mode;
 123         unsigned int ram_array_mode;
 124         unsigned int xscale;
 125         unsigned int yscale;
 126         unsigned int enable;
 127 };
 128
 129
 130 struct au1200_lcd_iodata_t {
 131         unsigned int subcmd;
 132         struct au1200_lcd_global_regs_t global;
 133         struct au1200_lcd_window_regs_t window;
 134 };
 135
 136 #if defined(__BIG_ENDIAN)
 137 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
 138 #else
 139 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
 140 #endif
 141 #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
 142
 143 /* Private, per-framebuffer management information (independent of the panel itself) */
 144 struct au1200fb_device {
 145         struct fb_info *fb_info;                /* FB driver info record */
 146
 147         int                                     plane;
 148         unsigned char*          fb_mem;         /* FrameBuffer memory map */
 149         unsigned int            fb_len;
 150         dma_addr_t              fb_phys;
 151 };
 152
 153 /********************************************************************/
 154
 155 /* LCD controller restrictions */
 156 #define AU1200_LCD_MAX_XRES     1280
 157 #define AU1200_LCD_MAX_YRES     1024
 158 #define AU1200_LCD_MAX_BPP      32
 159 #define AU1200_LCD_MAX_CLK      96000000 /* fixme: this needs to go away ? */
 160 #define AU1200_LCD_NBR_PALETTE_ENTRIES 256
 161
 162 /* Default number of visible screen buffer to allocate */
 163 #define AU1200FB_NBR_VIDEO_BUFFERS 1
 164
 165 /* Default maximum number of fb devices to create */
 166 #define MAX_DEVICE_COUNT        4
 167
 168 /* Default window configuration entry to use (see windows[]) */
 169 #define DEFAULT_WINDOW_INDEX    2
 170
 171 /********************************************************************/
 172
 173 static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT];
 174 static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
 175 static int device_count = MAX_DEVICE_COUNT;
 176 static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */
 177 static int panel_index = 2; /* default is zero */
 178 static struct window_settings *win;
 179 static struct panel_settings *panel;
 180 static int noblanking = 1;
 181 static int nohwcursor = 0;
 182
 183 struct window_settings {
 184         unsigned char name[64];
 185         uint32 mode_backcolor;
 186         uint32 mode_colorkey;
 187         uint32 mode_colorkeymsk;
 188         struct {
 189                 int xres;
 190                 int yres;
 191                 int xpos;
 192                 int ypos;
 193                 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
 194                 uint32 mode_winenable;
 195         } w[4];
 196 };
 197
 198 #if defined(__BIG_ENDIAN)
 199 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
 200 #else
 201 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
 202 #endif
 203
 204 extern int board_au1200fb_panel_init (void);
 205 extern int board_au1200fb_panel_shutdown (void);
 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_toyclksrc;
 335         uint32 mode_backlight;
 336         uint32 mode_auxpll;
 337         int (*device_init)(void);
 338         int (*device_shutdown)(void);
 339 #define Xres min_xres
 340 #define Yres min_yres
 341         u32     min_xres;               /* Minimum horizontal resolution */
 342         u32     max_xres;               /* Maximum horizontal resolution */
 343         u32     min_yres;               /* Minimum vertical resolution */
 344         u32     max_yres;               /* Maximum vertical resolution */
 345 };
 346
 347 /********************************************************************/
 348 /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
 349
 350 /* List of panels known to work with the AU1200 LCD controller.
 351  * To add a new panel, enter the same specifications as the
 352  * Generic_TFT one, and MAKE SURE that it doesn't conflicts
 353  * with the controller restrictions. Restrictions are:
 354  *
 355  * STN color panels: max_bpp <= 12
 356  * STN mono panels: max_bpp <= 4
 357  * TFT panels: max_bpp <= 16
 358  * max_xres <= 800
 359  * max_yres <= 600
 360  */
 361 static struct panel_settings known_lcd_panels[] =
 362 {
 363         [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
 364                 .name = "QVGA_320x240",
 365                 .monspecs = {
 366                         .modedb = NULL,
 367                         .modedb_len = 0,
 368                         .hfmin = 30000,
 369                         .hfmax = 70000,
 370                         .vfmin = 60,
 371                         .vfmax = 60,
 372                         .dclkmin = 6000000,
 373                         .dclkmax = 28000000,
 374                         .input = FB_DISP_RGB,
 375                 },
 376                 .mode_screen            = LCD_SCREEN_SX_N(320) |
 377                         LCD_SCREEN_SY_N(240),
 378                 .mode_horztiming        = 0x00c4623b,
 379                 .mode_verttiming        = 0x00502814,
 380                 .mode_clkcontrol        = 0x00020002, /* /4=24Mhz */
 381                 .mode_pwmdiv            = 0x00000000,
 382                 .mode_pwmhi             = 0x00000000,
 383                 .mode_outmask   = 0x00FFFFFF,
 384                 .mode_fifoctrl  = 0x2f2f2f2f,
 385                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 386                 .mode_backlight = 0x00000000,
 387                 .mode_auxpll            = 8, /* 96MHz AUXPLL */
 388                 .device_init            = NULL,
 389                 .device_shutdown        = NULL,
 390                 320, 320,
 391                 240, 240,
 392         },
 393
 394         [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
 395                 .name = "VGA_640x480",
 396                 .monspecs = {
 397                         .modedb = NULL,
 398                         .modedb_len = 0,
 399                         .hfmin = 30000,
 400                         .hfmax = 70000,
 401                         .vfmin = 60,
 402                         .vfmax = 60,
 403                         .dclkmin = 6000000,
 404                         .dclkmax = 28000000,
 405                         .input = FB_DISP_RGB,
 406                 },
 407                 .mode_screen            = 0x13f9df80,
 408                 .mode_horztiming        = 0x003c5859,
 409                 .mode_verttiming        = 0x00741201,
 410                 .mode_clkcontrol        = 0x00020001, /* /4=24Mhz */
 411                 .mode_pwmdiv            = 0x00000000,
 412                 .mode_pwmhi             = 0x00000000,
 413                 .mode_outmask   = 0x00FFFFFF,
 414                 .mode_fifoctrl  = 0x2f2f2f2f,
 415                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 416                 .mode_backlight = 0x00000000,
 417                 .mode_auxpll            = 8, /* 96MHz AUXPLL */
 418                 .device_init            = NULL,
 419                 .device_shutdown        = NULL,
 420                 640, 480,
 421                 640, 480,
 422         },
 423
 424         [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
 425                 .name = "SVGA_800x600",
 426                 .monspecs = {
 427                         .modedb = NULL,
 428                         .modedb_len = 0,
 429                         .hfmin = 30000,
 430                         .hfmax = 70000,
 431                         .vfmin = 60,
 432                         .vfmax = 60,
 433                         .dclkmin = 6000000,
 434                         .dclkmax = 28000000,
 435                         .input = FB_DISP_RGB,
 436                 },
 437                 .mode_screen            = 0x18fa5780,
 438                 .mode_horztiming        = 0x00dc7e77,
 439                 .mode_verttiming        = 0x00584805,
 440                 .mode_clkcontrol        = 0x00020000, /* /2=48Mhz */
 441                 .mode_pwmdiv            = 0x00000000,
 442                 .mode_pwmhi             = 0x00000000,
 443                 .mode_outmask   = 0x00FFFFFF,
 444                 .mode_fifoctrl  = 0x2f2f2f2f,
 445                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 446                 .mode_backlight = 0x00000000,
 447                 .mode_auxpll            = 8, /* 96MHz AUXPLL */
 448                 .device_init            = NULL,
 449                 .device_shutdown        = NULL,
 450                 800, 800,
 451                 600, 600,
 452         },
 453
 454         [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
 455                 .name = "XVGA_1024x768",
 456                 .monspecs = {
 457                         .modedb = NULL,
 458                         .modedb_len = 0,
 459                         .hfmin = 30000,
 460                         .hfmax = 70000,
 461                         .vfmin = 60,
 462                         .vfmax = 60,
 463                         .dclkmin = 6000000,
 464                         .dclkmax = 28000000,
 465                         .input = FB_DISP_RGB,
 466                 },
 467                 .mode_screen            = 0x1ffaff80,
 468                 .mode_horztiming        = 0x007d0e57,
 469                 .mode_verttiming        = 0x00740a01,
 470                 .mode_clkcontrol        = 0x000A0000, /* /1 */
 471                 .mode_pwmdiv            = 0x00000000,
 472                 .mode_pwmhi             = 0x00000000,
 473                 .mode_outmask   = 0x00FFFFFF,
 474                 .mode_fifoctrl  = 0x2f2f2f2f,
 475                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 476                 .mode_backlight = 0x00000000,
 477                 .mode_auxpll            = 6, /* 72MHz AUXPLL */
 478                 .device_init            = NULL,
 479                 .device_shutdown        = NULL,
 480                 1024, 1024,
 481                 768, 768,
 482         },
 483
 484         [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
 485                 .name = "XVGA_1280x1024",
 486                 .monspecs = {
 487                         .modedb = NULL,
 488                         .modedb_len = 0,
 489                         .hfmin = 30000,
 490                         .hfmax = 70000,
 491                         .vfmin = 60,
 492                         .vfmax = 60,
 493                         .dclkmin = 6000000,
 494                         .dclkmax = 28000000,
 495                         .input = FB_DISP_RGB,
 496                 },
 497                 .mode_screen            = 0x27fbff80,
 498                 .mode_horztiming        = 0x00cdb2c7,
 499                 .mode_verttiming        = 0x00600002,
 500                 .mode_clkcontrol        = 0x000A0000, /* /1 */
 501                 .mode_pwmdiv            = 0x00000000,
 502                 .mode_pwmhi             = 0x00000000,
 503                 .mode_outmask   = 0x00FFFFFF,
 504                 .mode_fifoctrl  = 0x2f2f2f2f,
 505                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 506                 .mode_backlight = 0x00000000,
 507                 .mode_auxpll            = 10, /* 120MHz AUXPLL */
 508                 .device_init            = NULL,
 509                 .device_shutdown        = NULL,
 510                 1280, 1280,
 511                 1024, 1024,
 512         },
 513
 514         [5] = { /* Samsung 1024x768 TFT */
 515                 .name = "Samsung_1024x768_TFT",
 516                 .monspecs = {
 517                         .modedb = NULL,
 518                         .modedb_len = 0,
 519                         .hfmin = 30000,
 520                         .hfmax = 70000,
 521                         .vfmin = 60,
 522                         .vfmax = 60,
 523                         .dclkmin = 6000000,
 524                         .dclkmax = 28000000,
 525                         .input = FB_DISP_RGB,
 526                 },
 527                 .mode_screen            = 0x1ffaff80,
 528                 .mode_horztiming        = 0x018cc677,
 529                 .mode_verttiming        = 0x00241217,
 530                 .mode_clkcontrol        = 0x00000000, /* SCB 0x1 /4=24Mhz */
 531                 .mode_pwmdiv            = 0x8000063f, /* SCB 0x0 */
 532                 .mode_pwmhi             = 0x03400000, /* SCB 0x0 */
 533                 .mode_outmask   = 0x00FFFFFF,
 534                 .mode_fifoctrl  = 0x2f2f2f2f,
 535                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 536                 .mode_backlight = 0x00000000,
 537                 .mode_auxpll            = 8, /* 96MHz AUXPLL */
 538                 .device_init            = board_au1200fb_panel_init,
 539                 .device_shutdown        = board_au1200fb_panel_shutdown,
 540                 1024, 1024,
 541                 768, 768,
 542         },
 543
 544         [6] = { /* Toshiba 640x480 TFT */
 545                 .name = "Toshiba_640x480_TFT",
 546                 .monspecs = {
 547                         .modedb = NULL,
 548                         .modedb_len = 0,
 549                         .hfmin = 30000,
 550                         .hfmax = 70000,
 551                         .vfmin = 60,
 552                         .vfmax = 60,
 553                         .dclkmin = 6000000,
 554                         .dclkmax = 28000000,
 555                         .input = FB_DISP_RGB,
 556                 },
 557                 .mode_screen            = LCD_SCREEN_SX_N(640) |
 558                         LCD_SCREEN_SY_N(480),
 559                 .mode_horztiming        = LCD_HORZTIMING_HPW_N(96) |
 560                         LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
 561                 .mode_verttiming        = LCD_VERTTIMING_VPW_N(2) |
 562                         LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
 563                 .mode_clkcontrol        = 0x00000000, /* /4=24Mhz */
 564                 .mode_pwmdiv            = 0x8000063f,
 565                 .mode_pwmhi             = 0x03400000,
 566                 .mode_outmask   = 0x00fcfcfc,
 567                 .mode_fifoctrl  = 0x2f2f2f2f,
 568                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 569                 .mode_backlight = 0x00000000,
 570                 .mode_auxpll            = 8, /* 96MHz AUXPLL */
 571                 .device_init            = board_au1200fb_panel_init,
 572                 .device_shutdown        = board_au1200fb_panel_shutdown,
 573                 640, 480,
 574                 640, 480,
 575         },
 576
 577         [7] = { /* Sharp 320x240 TFT */
 578                 .name = "Sharp_320x240_TFT",
 579                 .monspecs = {
 580                         .modedb = NULL,
 581                         .modedb_len = 0,
 582                         .hfmin = 12500,
 583                         .hfmax = 20000,
 584                         .vfmin = 38,
 585                         .vfmax = 81,
 586                         .dclkmin = 4500000,
 587                         .dclkmax = 6800000,
 588                         .input = FB_DISP_RGB,
 589                 },
 590                 .mode_screen            = LCD_SCREEN_SX_N(320) |
 591                         LCD_SCREEN_SY_N(240),
 592                 .mode_horztiming        = LCD_HORZTIMING_HPW_N(60) |
 593                         LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
 594                 .mode_verttiming        = LCD_VERTTIMING_VPW_N(2) |
 595                         LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
 596                 .mode_clkcontrol        = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
 597                 .mode_pwmdiv            = 0x8000063f,
 598                 .mode_pwmhi             = 0x03400000,
 599                 .mode_outmask   = 0x00fcfcfc,
 600                 .mode_fifoctrl  = 0x2f2f2f2f,
 601                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 602                 .mode_backlight = 0x00000000,
 603                 .mode_auxpll            = 8, /* 96MHz AUXPLL */
 604                 .device_init            = board_au1200fb_panel_init,
 605                 .device_shutdown        = board_au1200fb_panel_shutdown,
 606                 320, 320,
 607                 240, 240,
 608         },
 609
 610         [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
 611                 .name = "Toppoly_TD070WGCB2",
 612                 .monspecs = {
 613                         .modedb = NULL,
 614                         .modedb_len = 0,
 615                         .hfmin = 30000,
 616                         .hfmax = 70000,
 617                         .vfmin = 60,
 618                         .vfmax = 60,
 619                         .dclkmin = 6000000,
 620                         .dclkmax = 28000000,
 621                         .input = FB_DISP_RGB,
 622                 },
 623                 .mode_screen            = LCD_SCREEN_SX_N(856) |
 624                         LCD_SCREEN_SY_N(480),
 625                 .mode_horztiming        = LCD_HORZTIMING_HND2_N(43) |
 626                         LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
 627                 .mode_verttiming        = LCD_VERTTIMING_VND2_N(20) |
 628                         LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
 629                 .mode_clkcontrol        = 0x00020001, /* /4=24Mhz */
 630                 .mode_pwmdiv            = 0x8000063f,
 631                 .mode_pwmhi             = 0x03400000,
 632                 .mode_outmask   = 0x00fcfcfc,
 633                 .mode_fifoctrl  = 0x2f2f2f2f,
 634                 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
 635                 .mode_backlight = 0x00000000,
 636                 .mode_auxpll            = 8, /* 96MHz AUXPLL */
 637                 .device_init            = board_au1200fb_panel_init,
 638                 .device_shutdown        = board_au1200fb_panel_shutdown,
 639                 856, 856,
 640                 480, 480,
 641         },
 642 };
 643
 644 #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
 645
 646 /********************************************************************/
 647
 648 static int winbpp (unsigned int winctrl1)
 649 {
 650         int bits = 0;
 651
 652         /* how many bits are needed for each pixel format */
 653         switch (winctrl1 & LCD_WINCTRL1_FRM) {
 654         case LCD_WINCTRL1_FRM_1BPP:
 655                 bits = 1;
 656                 break;
 657         case LCD_WINCTRL1_FRM_2BPP:
 658                 bits = 2;
 659                 break;
 660         case LCD_WINCTRL1_FRM_4BPP:
 661                 bits = 4;
 662                 break;
 663         case LCD_WINCTRL1_FRM_8BPP:
 664                 bits = 8;
 665                 break;
 666         case LCD_WINCTRL1_FRM_12BPP:
 667         case LCD_WINCTRL1_FRM_16BPP655:
 668         case LCD_WINCTRL1_FRM_16BPP565:
 669         case LCD_WINCTRL1_FRM_16BPP556:
 670         case LCD_WINCTRL1_FRM_16BPPI1555:
 671         case LCD_WINCTRL1_FRM_16BPPI5551:
 672         case LCD_WINCTRL1_FRM_16BPPA1555:
 673         case LCD_WINCTRL1_FRM_16BPPA5551:
 674                 bits = 16;
 675                 break;
 676         case LCD_WINCTRL1_FRM_24BPP:
 677         case LCD_WINCTRL1_FRM_32BPP:
 678                 bits = 32;
 679                 break;
 680         }
 681
 682         return bits;
 683 }
 684
 685 static int fbinfo2index (struct fb_info *fb_info)
 686 {
 687         int i;
 688
 689         for (i = 0; i < device_count; ++i) {
 690                 if (fb_info == _au1200fb_infos[i])
 691                         return i;
 692         }
 693         printk("au1200fb: ERROR: fbinfo2index failed!\n");
 694         return -1;
 695 }
 696
 697 static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
 698         int xpos, int ypos)
 699 {
 700         uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
 701         int xsz, ysz;
 702
 703         /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
 704
 705         winctrl0 = lcd->window[plane].winctrl0;
 706         winctrl1 = lcd->window[plane].winctrl1;
 707         winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
 708         winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
 709
 710         /* Check for off-screen adjustments */
 711         xsz = win->w[plane].xres;
 712         ysz = win->w[plane].yres;
 713         if ((xpos + win->w[plane].xres) > panel->Xres) {
 714                 /* Off-screen to the right */
 715                 xsz = panel->Xres - xpos; /* off by 1 ??? */
 716                 /*printk("off screen right\n");*/
 717         }
 718
 719         if ((ypos + win->w[plane].yres) > panel->Yres) {
 720                 /* Off-screen to the bottom */
 721                 ysz = panel->Yres - ypos; /* off by 1 ??? */
 722                 /*printk("off screen bottom\n");*/
 723         }
 724
 725         if (xpos < 0) {
 726                 /* Off-screen to the left */
 727                 xsz = win->w[plane].xres + xpos;
 728                 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
 729                 xpos = 0;
 730                 /*printk("off screen left\n");*/
 731         }
 732
 733         if (ypos < 0) {
 734                 /* Off-screen to the top */
 735                 ysz = win->w[plane].yres + ypos;
 736                 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
 737                 ypos = 0;
 738                 /*printk("off screen top\n");*/
 739         }
 740
 741         /* record settings */
 742         win->w[plane].xpos = xpos;
 743         win->w[plane].ypos = ypos;
 744
 745         xsz -= 1;
 746         ysz -= 1;
 747         winctrl0 |= (xpos << 21);
 748         winctrl0 |= (ypos << 10);
 749         winctrl1 |= (xsz << 11);
 750         winctrl1 |= (ysz << 0);
 751
 752         /* Disable the window while making changes, then restore WINEN */
 753         winenable = lcd->winenable & (1 << plane);
 754         au_sync();
 755         lcd->winenable &= ~(1 << plane);
 756         lcd->window[plane].winctrl0 = winctrl0;
 757         lcd->window[plane].winctrl1 = winctrl1;
 758         lcd->window[plane].winbuf0 =
 759         lcd->window[plane].winbuf1 = fbdev->fb_phys;
 760         lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
 761         lcd->winenable |= winenable;
 762         au_sync();
 763
 764         return 0;
 765 }
 766
 767 static void au1200_setpanel (struct panel_settings *newpanel)
 768 {
 769         /*
 770          * Perform global setup/init of LCD controller
 771          */
 772         uint32 winenable;
 773
 774         /* Make sure all windows disabled */
 775         winenable = lcd->winenable;
 776         lcd->winenable = 0;
 777         au_sync();
 778         /*
 779          * Ensure everything is disabled before reconfiguring
 780          */
 781         if (lcd->screen & LCD_SCREEN_SEN) {
 782                 /* Wait for vertical sync period */
 783                 lcd->intstatus = LCD_INT_SS;
 784                 while ((lcd->intstatus & LCD_INT_SS) == 0) {
 785                         au_sync();
 786                 }
 787
 788                 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
 789
 790                 do {
 791                         lcd->intstatus = lcd->intstatus; /*clear interrupts*/
 792                         au_sync();
 793                 /*wait for controller to shut down*/
 794                 } while ((lcd->intstatus & LCD_INT_SD) == 0);
 795
 796                 /* Call shutdown of current panel (if up) */
 797                 /* this must occur last, because if an external clock is driving
 798                     the controller, the clock cannot be turned off before first
 799                         shutting down the controller.
 800                  */
 801                 if (panel->device_shutdown != NULL)
 802                         panel->device_shutdown();
 803         }
 804
 805         /* Newpanel == NULL indicates a shutdown operation only */
 806         if (newpanel == NULL)
 807                 return;
 808
 809         panel = newpanel;
 810
 811         printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
 812
 813         /*
 814          * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
 815          */
 816         if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
 817         {
 818                 uint32 sys_clksrc;
 819                 au_writel(panel->mode_auxpll, SYS_AUXPLL);
 820                 sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f;
 821                 sys_clksrc |= panel->mode_toyclksrc;
 822                 au_writel(sys_clksrc, SYS_CLKSRC);
 823         }
 824
 825         /*
 826          * Configure panel timings
 827          */
 828         lcd->screen = panel->mode_screen;
 829         lcd->horztiming = panel->mode_horztiming;
 830         lcd->verttiming = panel->mode_verttiming;
 831         lcd->clkcontrol = panel->mode_clkcontrol;
 832         lcd->pwmdiv = panel->mode_pwmdiv;
 833         lcd->pwmhi = panel->mode_pwmhi;
 834         lcd->outmask = panel->mode_outmask;
 835         lcd->fifoctrl = panel->mode_fifoctrl;
 836         au_sync();
 837
 838         /* fixme: Check window settings to make sure still valid
 839          * for new geometry */
 840 #if 0
 841         au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
 842         au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
 843         au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
 844         au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
 845 #endif
 846         lcd->winenable = winenable;
 847
 848         /*
 849          * Re-enable screen now that it is configured
 850          */
 851         lcd->screen |= LCD_SCREEN_SEN;
 852         au_sync();
 853
 854         /* Call init of panel */
 855         if (panel->device_init != NULL) panel->device_init();
 856
 857         /* FIX!!!! not appropriate on panel change!!! Global setup/init */
 858         lcd->intenable = 0;
 859         lcd->intstatus = ~0;
 860         lcd->backcolor = win->mode_backcolor;
 861
 862         /* Setup Color Key - FIX!!! */
 863         lcd->colorkey = win->mode_colorkey;
 864         lcd->colorkeymsk = win->mode_colorkeymsk;
 865
 866         /* Setup HWCursor - FIX!!! Need to support this eventually */
 867         lcd->hwc.cursorctrl = 0;
 868         lcd->hwc.cursorpos = 0;
 869         lcd->hwc.cursorcolor0 = 0;
 870         lcd->hwc.cursorcolor1 = 0;
 871         lcd->hwc.cursorcolor2 = 0;
 872         lcd->hwc.cursorcolor3 = 0;
 873
 874
 875 #if 0
 876 #define D(X) printk("%25s: %08X\n", #X, X)
 877         D(lcd->screen);
 878         D(lcd->horztiming);
 879         D(lcd->verttiming);
 880         D(lcd->clkcontrol);
 881         D(lcd->pwmdiv);
 882         D(lcd->pwmhi);
 883         D(lcd->outmask);
 884         D(lcd->fifoctrl);
 885         D(lcd->window[0].winctrl0);
 886         D(lcd->window[0].winctrl1);
 887         D(lcd->window[0].winctrl2);
 888         D(lcd->window[0].winbuf0);
 889         D(lcd->window[0].winbuf1);
 890         D(lcd->window[0].winbufctrl);
 891         D(lcd->window[1].winctrl0);
 892         D(lcd->window[1].winctrl1);
 893         D(lcd->window[1].winctrl2);
 894         D(lcd->window[1].winbuf0);
 895         D(lcd->window[1].winbuf1);
 896         D(lcd->window[1].winbufctrl);
 897         D(lcd->window[2].winctrl0);
 898         D(lcd->window[2].winctrl1);
 899         D(lcd->window[2].winctrl2);
 900         D(lcd->window[2].winbuf0);
 901         D(lcd->window[2].winbuf1);
 902         D(lcd->window[2].winbufctrl);
 903         D(lcd->window[3].winctrl0);
 904         D(lcd->window[3].winctrl1);
 905         D(lcd->window[3].winctrl2);
 906         D(lcd->window[3].winbuf0);
 907         D(lcd->window[3].winbuf1);
 908         D(lcd->window[3].winbufctrl);
 909         D(lcd->winenable);
 910         D(lcd->intenable);
 911         D(lcd->intstatus);
 912         D(lcd->backcolor);
 913         D(lcd->winenable);
 914         D(lcd->colorkey);
 915     D(lcd->colorkeymsk);
 916         D(lcd->hwc.cursorctrl);
 917         D(lcd->hwc.cursorpos);
 918         D(lcd->hwc.cursorcolor0);
 919         D(lcd->hwc.cursorcolor1);
 920         D(lcd->hwc.cursorcolor2);
 921         D(lcd->hwc.cursorcolor3);
 922 #endif
 923 }
 924
 925 static void au1200_setmode(struct au1200fb_device *fbdev)
 926 {
 927         int plane = fbdev->plane;
 928         /* Window/plane setup */
 929         lcd->window[plane].winctrl1 = ( 0
 930                 | LCD_WINCTRL1_PRI_N(plane)
 931                 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
 932                 ) ;
 933
 934         au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
 935
 936         lcd->window[plane].winctrl2 = ( 0
 937                 | LCD_WINCTRL2_CKMODE_00
 938                 | LCD_WINCTRL2_DBM
 939                 | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length)
 940                 | LCD_WINCTRL2_SCX_1
 941                 | LCD_WINCTRL2_SCY_1
 942                 ) ;
 943         lcd->winenable |= win->w[plane].mode_winenable;
 944         au_sync();
 945 }
 946
 947
 948 /* Inline helpers */
 949
 950 /*#define panel_is_dual(panel)  ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
 951 /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
 952
 953 #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
 954
 955 /* Bitfields format supported by the controller. */
 956 static struct fb_bitfield rgb_bitfields[][4] = {
 957         /*     Red,        Green,        Blue,       Transp   */
 958         [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
 959                 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
 960
 961         [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
 962                 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
 963
 964         [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
 965                 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
 966
 967         [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
 968                 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
 969
 970         [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
 971                 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
 972
 973         [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
 974                 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
 975
 976         [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
 977                 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
 978
 979         [LCD_WINCTRL1_FRM_24BPP >> 25] =
 980                 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
 981
 982         [LCD_WINCTRL1_FRM_32BPP >> 25] =
 983                 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
 984 };
 985
 986 /*-------------------------------------------------------------------------*/
 987
 988 /* Helpers */
 989
 990 static void au1200fb_update_fbinfo(struct fb_info *fbi)
 991 {
 992         /* FIX!!!! This also needs to take the window pixel format into account!!! */
 993
 994         /* Update var-dependent FB info */
 995         if (panel_is_color(panel)) {
 996                 if (fbi->var.bits_per_pixel <= 8) {
 997                         /* palettized */
 998                         fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
 999                         fbi->fix.line_length = fbi->var.xres_virtual /
1000                                 (8/fbi->var.bits_per_pixel);
1001                 } else {
1002                         /* non-palettized */
1003                         fbi->fix.visual = FB_VISUAL_TRUECOLOR;
1004                         fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
1005                 }
1006         } else {
1007                 /* mono FIX!!! mono 8 and 4 bits */
1008                 fbi->fix.visual = FB_VISUAL_MONO10;
1009                 fbi->fix.line_length = fbi->var.xres_virtual / 8;
1010         }
1011
1012         fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
1013         print_dbg("line length: %d\n", fbi->fix.line_length);
1014         print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
1015 }
1016
1017 /*-------------------------------------------------------------------------*/
1018
1019 /* AU1200 framebuffer driver */
1020
1021 /* fb_check_var
1022  * Validate var settings with hardware restrictions and modify it if necessary
1023  */
1024 static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
1025         struct fb_info *fbi)
1026 {
1027         struct au1200fb_device *fbdev = fbi->par;
1028         u32 pixclock;
1029         int screen_size, plane;
1030
1031         plane = fbdev->plane;
1032
1033         /* Make sure that the mode respect all LCD controller and
1034          * panel restrictions. */
1035         var->xres = win->w[plane].xres;
1036         var->yres = win->w[plane].yres;
1037
1038         /* No need for virtual resolution support */
1039         var->xres_virtual = var->xres;
1040         var->yres_virtual = var->yres;
1041
1042         var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
1043
1044         screen_size = var->xres_virtual * var->yres_virtual;
1045         if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
1046         else screen_size /= (8/var->bits_per_pixel);
1047
1048         if (fbdev->fb_len < screen_size)
1049                 return -EINVAL; /* Virtual screen is to big, abort */
1050
1051         /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
1052         /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
1053          * clock can only be obtain by dividing this value by an even integer.
1054          * Fallback to a slower pixel clock if necessary. */
1055         pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
1056         pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2);
1057
1058         if (AU1200_LCD_MAX_CLK % pixclock) {
1059                 int diff = AU1200_LCD_MAX_CLK % pixclock;
1060                 pixclock -= diff;
1061         }
1062
1063         var->pixclock = KHZ2PICOS(pixclock/1000);
1064 #if 0
1065         if (!panel_is_active(panel)) {
1066                 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
1067
1068                 if (!panel_is_color(panel)
1069                         && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
1070                         /* STN 8bit mono panel support is up to 6MHz pixclock */
1071                         var->pixclock = KHZ2PICOS(6000);
1072                 } else if (!pcd) {
1073                         /* Other STN panel support is up to 12MHz  */
1074                         var->pixclock = KHZ2PICOS(12000);
1075                 }
1076         }
1077 #endif
1078         /* Set bitfield accordingly */
1079         switch (var->bits_per_pixel) {
1080                 case 16:
1081                 {
1082                         /* 16bpp True color.
1083                          * These must be set to MATCH WINCTRL[FORM] */
1084                         int idx;
1085                         idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1086                         var->red    = rgb_bitfields[idx][0];
1087                         var->green  = rgb_bitfields[idx][1];
1088                         var->blue   = rgb_bitfields[idx][2];
1089                         var->transp = rgb_bitfields[idx][3];
1090                         break;
1091                 }
1092
1093                 case 32:
1094                 {
1095                         /* 32bpp True color.
1096                          * These must be set to MATCH WINCTRL[FORM] */
1097                         int idx;
1098                         idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1099                         var->red    = rgb_bitfields[idx][0];
1100                         var->green  = rgb_bitfields[idx][1];
1101                         var->blue   = rgb_bitfields[idx][2];
1102                         var->transp = rgb_bitfields[idx][3];
1103                         break;
1104                 }
1105                 default:
1106                         print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
1107                         return -EINVAL;
1108         }
1109
1110         return 0;
1111 }
1112
1113 /* fb_set_par
1114  * Set hardware with var settings. This will enable the controller with a
1115  * specific mode, normally validated with the fb_check_var method
1116  */
1117 static int au1200fb_fb_set_par(struct fb_info *fbi)
1118 {
1119         struct au1200fb_device *fbdev = fbi->par;
1120
1121         au1200fb_update_fbinfo(fbi);
1122         au1200_setmode(fbdev);
1123
1124         return 0;
1125 }
1126
1127 /* fb_setcolreg
1128  * Set color in LCD palette.
1129  */
1130 static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
1131         unsigned blue, unsigned transp, struct fb_info *fbi)
1132 {
1133         volatile u32 *palette = lcd->palette;
1134         u32 value;
1135
1136         if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
1137                 return -EINVAL;
1138
1139         if (fbi->var.grayscale) {
1140                 /* Convert color to grayscale */
1141                 red = green = blue =
1142                         (19595 * red + 38470 * green + 7471 * blue) >> 16;
1143         }
1144
1145         if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
1146                 /* Place color in the pseudopalette */
1147                 if (regno > 16)
1148                         return -EINVAL;
1149
1150                 palette = (u32*) fbi->pseudo_palette;
1151
1152                 red   >>= (16 - fbi->var.red.length);
1153                 green >>= (16 - fbi->var.green.length);
1154                 blue  >>= (16 - fbi->var.blue.length);
1155
1156                 value = (red   << fbi->var.red.offset)  |
1157                         (green << fbi->var.green.offset)|
1158                         (blue  << fbi->var.blue.offset);
1159                 value &= 0xFFFF;
1160
1161         } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
1162                 /* COLOR TFT PALLETTIZED (use RGB 565) */
1163                 value = (red & 0xF800)|((green >> 5) &
1164                                 0x07E0)|((blue >> 11) & 0x001F);
1165                 value &= 0xFFFF;
1166
1167         } else if (0 /*panel_is_color(fbdev->panel)*/) {
1168                 /* COLOR STN MODE */
1169                 value = 0x1234;
1170                 value &= 0xFFF;
1171         } else {
1172                 /* MONOCHROME MODE */
1173                 value = (green >> 12) & 0x000F;
1174                 value &= 0xF;
1175         }
1176
1177         palette[regno] = value;
1178
1179         return 0;
1180 }
1181
1182 /* fb_blank
1183  * Blank the screen. Depending on the mode, the screen will be
1184  * activated with the backlight color, or desactivated
1185  */
1186 static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
1187 {
1188         /* Short-circuit screen blanking */
1189         if (noblanking)
1190                 return 0;
1191
1192         switch (blank_mode) {
1193
1194         case FB_BLANK_UNBLANK:
1195         case FB_BLANK_NORMAL:
1196                 /* printk("turn on panel\n"); */
1197                 au1200_setpanel(panel);
1198                 break;
1199         case FB_BLANK_VSYNC_SUSPEND:
1200         case FB_BLANK_HSYNC_SUSPEND:
1201         case FB_BLANK_POWERDOWN:
1202                 /* printk("turn off panel\n"); */
1203                 au1200_setpanel(NULL);
1204                 break;
1205         default:
1206                 break;
1207
1208         }
1209
1210         /* FB_BLANK_NORMAL is a soft blank */
1211         return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
1212 }
1213
1214 /* fb_mmap
1215  * Map video memory in user space. We don't use the generic fb_mmap
1216  * method mainly to allow the use of the TLB streaming flag (CCA=6)
1217  */
1218 static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1219
1220 {
1221         unsigned int len;
1222         unsigned long start=0, off;
1223         struct au1200fb_device *fbdev = info->par;
1224
1225         if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
1226                 return -EINVAL;
1227         }
1228
1229         start = fbdev->fb_phys & PAGE_MASK;
1230         len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len);
1231
1232         off = vma->vm_pgoff << PAGE_SHIFT;
1233
1234         if ((vma->vm_end - vma->vm_start + off) > len) {
1235                 return -EINVAL;
1236         }
1237
1238         off += start;
1239         vma->vm_pgoff = off >> PAGE_SHIFT;
1240
1241         vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1242         pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
1243
1244         vma->vm_flags |= VM_IO;
1245
1246         return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
1247                                   vma->vm_end - vma->vm_start,
1248                                   vma->vm_page_prot);
1249
1250         return 0;
1251 }
1252
1253 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1254 {
1255
1256         unsigned int hi1, divider;
1257
1258         /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
1259
1260         if (pdata->flags & SCREEN_BACKCOLOR)
1261                 lcd->backcolor = pdata->backcolor;
1262
1263         if (pdata->flags & SCREEN_BRIGHTNESS) {
1264
1265                 // limit brightness pwm duty to >= 30/1600
1266                 if (pdata->brightness < 30) {
1267                         pdata->brightness = 30;
1268                 }
1269                 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1270                 hi1 = (lcd->pwmhi >> 16) + 1;
1271                 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
1272                 lcd->pwmhi &= 0xFFFF;
1273                 lcd->pwmhi |= (hi1 << 16);
1274         }
1275
1276         if (pdata->flags & SCREEN_COLORKEY)
1277                 lcd->colorkey = pdata->colorkey;
1278
1279         if (pdata->flags & SCREEN_MASK)
1280                 lcd->colorkeymsk = pdata->mask;
1281         au_sync();
1282 }
1283
1284 static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1285 {
1286         unsigned int hi1, divider;
1287
1288         pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
1289         pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
1290
1291         pdata->backcolor = lcd->backcolor;
1292         pdata->colorkey = lcd->colorkey;
1293         pdata->mask = lcd->colorkeymsk;
1294
1295         // brightness
1296         hi1 = (lcd->pwmhi >> 16) + 1;
1297         divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1298         pdata->brightness = ((hi1 << 8) / divider) - 1;
1299         au_sync();
1300 }
1301
1302 static void set_window(unsigned int plane,
1303         struct au1200_lcd_window_regs_t *pdata)
1304 {
1305         unsigned int val, bpp;
1306
1307         /* Window control register 0 */
1308         if (pdata->flags & WIN_POSITION) {
1309                 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
1310                                 LCD_WINCTRL0_OY);
1311                 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
1312                 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
1313                 lcd->window[plane].winctrl0 = val;
1314         }
1315         if (pdata->flags & WIN_ALPHA_COLOR) {
1316                 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
1317                 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
1318                 lcd->window[plane].winctrl0 = val;
1319         }
1320         if (pdata->flags & WIN_ALPHA_MODE) {
1321                 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
1322                 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
1323                 lcd->window[plane].winctrl0 = val;
1324         }
1325
1326         /* Window control register 1 */
1327         if (pdata->flags & WIN_PRIORITY) {
1328                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
1329                 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
1330                 lcd->window[plane].winctrl1 = val;
1331         }
1332         if (pdata->flags & WIN_CHANNEL) {
1333                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
1334                 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
1335                 lcd->window[plane].winctrl1 = val;
1336         }
1337         if (pdata->flags & WIN_BUFFER_FORMAT) {
1338                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
1339                 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
1340                 lcd->window[plane].winctrl1 = val;
1341         }
1342         if (pdata->flags & WIN_COLOR_ORDER) {
1343                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
1344                 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
1345                 lcd->window[plane].winctrl1 = val;
1346         }
1347         if (pdata->flags & WIN_PIXEL_ORDER) {
1348                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
1349                 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
1350                 lcd->window[plane].winctrl1 = val;
1351         }
1352         if (pdata->flags & WIN_SIZE) {
1353                 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
1354                                 LCD_WINCTRL1_SZY);
1355                 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
1356                 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
1357                 lcd->window[plane].winctrl1 = val;
1358                 /* program buffer line width */
1359                 bpp = winbpp(val) / 8;
1360                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
1361                 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
1362                 lcd->window[plane].winctrl2 = val;
1363         }
1364
1365         /* Window control register 2 */
1366         if (pdata->flags & WIN_COLORKEY_MODE) {
1367                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
1368                 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
1369                 lcd->window[plane].winctrl2 = val;
1370         }
1371         if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
1372                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
1373                 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
1374                 lcd->window[plane].winctrl2 = val;
1375         }
1376         if (pdata->flags & WIN_RAM_ARRAY_MODE) {
1377                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
1378                 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
1379                 lcd->window[plane].winctrl2 = val;
1380         }
1381
1382         /* Buffer line width programmed with WIN_SIZE */
1383
1384         if (pdata->flags & WIN_BUFFER_SCALE) {
1385                 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
1386                                 LCD_WINCTRL2_SCY);
1387                 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
1388                 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
1389                 lcd->window[plane].winctrl2 = val;
1390         }
1391
1392         if (pdata->flags & WIN_ENABLE) {
1393                 val = lcd->winenable;
1394                 val &= ~(1<<plane);
1395                 val |= (pdata->enable & 1) << plane;
1396                 lcd->winenable = val;
1397         }
1398         au_sync();
1399 }
1400
1401 static void get_window(unsigned int plane,
1402         struct au1200_lcd_window_regs_t *pdata)
1403 {
1404         /* Window control register 0 */
1405         pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
1406         pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
1407         pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
1408         pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
1409
1410         /* Window control register 1 */
1411         pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
1412         pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
1413         pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1414         pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
1415         pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
1416         pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
1417         pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
1418
1419         /* Window control register 2 */
1420         pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
1421         pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
1422         pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
1423
1424         pdata->enable = (lcd->winenable >> plane) & 1;
1425         au_sync();
1426 }
1427
1428 static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
1429                           unsigned long arg)
1430 {
1431         int plane;
1432         int val;
1433
1434         plane = fbinfo2index(info);
1435         print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
1436
1437         if (cmd == AU1200_LCD_FB_IOCTL) {
1438                 struct au1200_lcd_iodata_t iodata;
1439
1440                 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
1441                         return -EFAULT;
1442
1443                 print_dbg("FB IOCTL called\n");
1444
1445                 switch (iodata.subcmd) {
1446                 case AU1200_LCD_SET_SCREEN:
1447                         print_dbg("AU1200_LCD_SET_SCREEN\n");
1448                         set_global(cmd, &iodata.global);
1449                         break;
1450
1451                 case AU1200_LCD_GET_SCREEN:
1452                         print_dbg("AU1200_LCD_GET_SCREEN\n");
1453                         get_global(cmd, &iodata.global);
1454                         break;
1455
1456                 case AU1200_LCD_SET_WINDOW:
1457                         print_dbg("AU1200_LCD_SET_WINDOW\n");
1458                         set_window(plane, &iodata.window);
1459                         break;
1460
1461                 case AU1200_LCD_GET_WINDOW:
1462                         print_dbg("AU1200_LCD_GET_WINDOW\n");
1463                         get_window(plane, &iodata.window);
1464                         break;
1465
1466                 case AU1200_LCD_SET_PANEL:
1467                         print_dbg("AU1200_LCD_SET_PANEL\n");
1468                         if ((iodata.global.panel_choice >= 0) &&
1469                                         (iodata.global.panel_choice <
1470                                          NUM_PANELS))
1471                         {
1472                                 struct panel_settings *newpanel;
1473                                 panel_index = iodata.global.panel_choice;
1474                                 newpanel = &known_lcd_panels[panel_index];
1475                                 au1200_setpanel(newpanel);
1476                         }
1477                         break;
1478
1479                 case AU1200_LCD_GET_PANEL:
1480                         print_dbg("AU1200_LCD_GET_PANEL\n");
1481                         iodata.global.panel_choice = panel_index;
1482                         break;
1483
1484                 default:
1485                         return -EINVAL;
1486                 }
1487
1488                 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
1489                 if (val) {
1490                         print_dbg("error: could not copy %d bytes\n", val);
1491                         return -EFAULT;
1492                 }
1493         }
1494
1495         return 0;
1496 }
1497
1498
1499 static struct fb_ops au1200fb_fb_ops = {
1500         .owner          = THIS_MODULE,
1501         .fb_check_var   = au1200fb_fb_check_var,
1502         .fb_set_par     = au1200fb_fb_set_par,
1503         .fb_setcolreg   = au1200fb_fb_setcolreg,
1504         .fb_blank       = au1200fb_fb_blank,
1505         .fb_fillrect    = sys_fillrect,
1506         .fb_copyarea    = sys_copyarea,
1507         .fb_imageblit   = sys_imageblit,
1508         .fb_read        = fb_sys_read,
1509         .fb_write       = fb_sys_write,
1510         .fb_sync        = NULL,
1511         .fb_ioctl       = au1200fb_ioctl,
1512         .fb_mmap        = au1200fb_fb_mmap,
1513 };
1514
1515 /*-------------------------------------------------------------------------*/
1516
1517 static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id)
1518 {
1519         /* Nothing to do for now, just clear any pending interrupt */
1520         lcd->intstatus = lcd->intstatus;
1521         au_sync();
1522
1523         return IRQ_HANDLED;
1524 }
1525
1526 /*-------------------------------------------------------------------------*/
1527
1528 /* AU1200 LCD device probe helpers */
1529
1530 static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
1531 {
1532         struct fb_info *fbi = fbdev->fb_info;
1533         int bpp;
1534
1535         fbi->fbops = &au1200fb_fb_ops;
1536
1537         bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
1538
1539         /* Copy monitor specs from panel data */
1540         /* fixme: we're setting up LCD controller windows, so these dont give a
1541         damn as to what the monitor specs are (the panel itself does, but that
1542         isn't done here...so maybe need a generic catchall monitor setting??? */
1543         memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
1544
1545         /* We first try the user mode passed in argument. If that failed,
1546          * or if no one has been specified, we default to the first mode of the
1547          * panel list. Note that after this call, var data will be set */
1548         if (!fb_find_mode(&fbi->var,
1549                           fbi,
1550                           NULL, /* drv_info.opt_mode, */
1551                           fbi->monspecs.modedb,
1552                           fbi->monspecs.modedb_len,
1553                           fbi->monspecs.modedb,
1554                           bpp)) {
1555
1556                 print_err("Cannot find valid mode for panel %s", panel->name);
1557                 return -EFAULT;
1558         }
1559
1560         fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL);
1561         if (!fbi->pseudo_palette) {
1562                 return -ENOMEM;
1563         }
1564
1565         if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
1566                 print_err("Fail to allocate colormap (%d entries)",
1567                            AU1200_LCD_NBR_PALETTE_ENTRIES);
1568                 kfree(fbi->pseudo_palette);
1569                 return -EFAULT;
1570         }
1571
1572         strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
1573         fbi->fix.smem_start = fbdev->fb_phys;
1574         fbi->fix.smem_len = fbdev->fb_len;
1575         fbi->fix.type = FB_TYPE_PACKED_PIXELS;
1576         fbi->fix.xpanstep = 0;
1577         fbi->fix.ypanstep = 0;
1578         fbi->fix.mmio_start = 0;
1579         fbi->fix.mmio_len = 0;
1580         fbi->fix.accel = FB_ACCEL_NONE;
1581
1582         fbi->screen_base = (char __iomem *) fbdev->fb_mem;
1583
1584         au1200fb_update_fbinfo(fbi);
1585
1586         return 0;
1587 }
1588
1589 /*-------------------------------------------------------------------------*/
1590
1591 /* AU1200 LCD controller device driver */
1592
1593 static int __devinit au1200fb_drv_probe(struct platform_device *dev)
1594 {
1595         struct au1200fb_device *fbdev;
1596         struct fb_info *fbi = NULL;
1597         unsigned long page;
1598         int bpp, plane, ret, irq;
1599
1600         /* shut gcc up */
1601         ret = 0;
1602         fbdev = NULL;
1603
1604         /* Kickstart the panel */
1605         au1200_setpanel(panel);
1606
1607         for (plane = 0; plane < device_count; ++plane) {
1608                 bpp = winbpp(win->w[plane].mode_winctrl1);
1609                 if (win->w[plane].xres == 0)
1610                         win->w[plane].xres = panel->Xres;
1611                 if (win->w[plane].yres == 0)
1612                         win->w[plane].yres = panel->Yres;
1613
1614                 fbi = framebuffer_alloc(sizeof(struct au1200fb_device),
1615                                         &dev->dev);
1616                 if (!fbi)
1617                         goto failed;
1618
1619                 _au1200fb_infos[plane] = fbi;
1620                 fbdev = fbi->par;
1621                 fbdev->fb_info = fbi;
1622
1623                 fbdev->plane = plane;
1624
1625                 /* Allocate the framebuffer to the maximum screen size */
1626                 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
1627
1628                 fbdev->fb_mem = dma_alloc_noncoherent(&dev->dev,
1629                                 PAGE_ALIGN(fbdev->fb_len),
1630                                 &fbdev->fb_phys, GFP_KERNEL);
1631                 if (!fbdev->fb_mem) {
1632                         print_err("fail to allocate frambuffer (size: %dK))",
1633                                   fbdev->fb_len / 1024);
1634                         return -ENOMEM;
1635                 }
1636
1637                 /*
1638                  * Set page reserved so that mmap will work. This is necessary
1639                  * since we'll be remapping normal memory.
1640                  */
1641                 for (page = (unsigned long)fbdev->fb_phys;
1642                      page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
1643                              fbdev->fb_len);
1644                      page += PAGE_SIZE) {
1645                         SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
1646                 }
1647                 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
1648                 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
1649
1650                 /* Init FB data */
1651                 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
1652                         goto failed;
1653
1654                 /* Register new framebuffer */
1655                 ret = register_framebuffer(fbi);
1656                 if (ret < 0) {
1657                         print_err("cannot register new framebuffer");
1658                         goto failed;
1659                 }
1660
1661                 au1200fb_fb_set_par(fbi);
1662
1663 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
1664                 if (plane == 0)
1665                         if (fb_prepare_logo(fbi, FB_ROTATE_UR)) {
1666                                 /* Start display and show logo on boot */
1667                                 fb_set_cmap(&fbi->cmap, fbi);
1668                                 fb_show_logo(fbi, FB_ROTATE_UR);
1669                         }
1670 #endif
1671         }
1672
1673         /* Now hook interrupt too */
1674         irq = platform_get_irq(dev, 0);
1675         ret = request_irq(irq, au1200fb_handle_irq,
1676                           IRQF_SHARED, "lcd", (void *)dev);
1677         if (ret) {
1678                 print_err("fail to request interrupt line %d (err: %d)",
1679                           irq, ret);
1680                 goto failed;
1681         }
1682
1683         return 0;
1684
1685 failed:
1686         /* NOTE: This only does the current plane/window that failed; others are still active */
1687         if (fbdev->fb_mem)
1688                 dma_free_noncoherent(&dev->dev, PAGE_ALIGN(fbdev->fb_len),
1689                                 fbdev->fb_mem, fbdev->fb_phys);
1690         if (fbi) {
1691                 if (fbi->cmap.len != 0)
1692                         fb_dealloc_cmap(&fbi->cmap);
1693                 kfree(fbi->pseudo_palette);
1694         }
1695         if (plane == 0)
1696                 free_irq(AU1200_LCD_INT, (void*)dev);
1697         return ret;
1698 }
1699
1700 static int __devexit au1200fb_drv_remove(struct platform_device *dev)
1701 {
1702         struct au1200fb_device *fbdev;
1703         struct fb_info *fbi;
1704         int plane;
1705
1706         /* Turn off the panel */
1707         au1200_setpanel(NULL);
1708
1709         for (plane = 0; plane < device_count; ++plane)  {
1710                 fbi = _au1200fb_infos[plane];
1711                 fbdev = fbi->par;
1712
1713                 /* Clean up all probe data */
1714                 unregister_framebuffer(fbi);
1715                 if (fbdev->fb_mem)
1716                         dma_free_noncoherent(&dev->dev,
1717                                         PAGE_ALIGN(fbdev->fb_len),
1718                                         fbdev->fb_mem, fbdev->fb_phys);
1719                 if (fbi->cmap.len != 0)
1720                         fb_dealloc_cmap(&fbi->cmap);
1721                 kfree(fbi->pseudo_palette);
1722
1723                 framebuffer_release(fbi);
1724                 _au1200fb_infos[plane] = NULL;
1725         }
1726
1727         free_irq(platform_get_irq(dev, 0), (void *)dev);
1728
1729         return 0;
1730 }
1731
1732 #ifdef CONFIG_PM
1733 static int au1200fb_drv_suspend(struct device *dev)
1734 {
1735         au1200_setpanel(NULL);
1736
1737         lcd->outmask = 0;
1738         au_sync();
1739
1740         return 0;
1741 }
1742
1743 static int au1200fb_drv_resume(struct device *dev)
1744 {
1745         struct fb_info *fbi;
1746         int i;
1747
1748         /* Kickstart the panel */
1749         au1200_setpanel(panel);
1750
1751         for (i = 0; i < device_count; i++) {
1752                 fbi = _au1200fb_infos[i];
1753                 au1200fb_fb_set_par(fbi);
1754         }
1755
1756         return 0;
1757 }
1758
1759 static const struct dev_pm_ops au1200fb_pmops = {
1760         .suspend        = au1200fb_drv_suspend,
1761         .resume         = au1200fb_drv_resume,
1762         .freeze         = au1200fb_drv_suspend,
1763         .thaw           = au1200fb_drv_resume,
1764 };
1765
1766 #define AU1200FB_PMOPS  (&au1200fb_pmops)
1767
1768 #else
1769 #define AU1200FB_PMOPS  NULL
1770 #endif /* CONFIG_PM */
1771
1772 static struct platform_driver au1200fb_driver = {
1773         .driver = {
1774                 .name   = "au1200-lcd",
1775                 .owner  = THIS_MODULE,
1776                 .pm     = AU1200FB_PMOPS,
1777         },
1778         .probe          = au1200fb_drv_probe,
1779         .remove         = __devexit_p(au1200fb_drv_remove),
1780 };
1781
1782 /*-------------------------------------------------------------------------*/
1783
1784 /* Kernel driver */
1785
1786 static int au1200fb_setup(void)
1787 {
1788         char *options = NULL;
1789         char *this_opt, *endptr;
1790         int num_panels = ARRAY_SIZE(known_lcd_panels);
1791         int panel_idx = -1;
1792
1793         fb_get_options(DRIVER_NAME, &options);
1794
1795         if (options) {
1796                 while ((this_opt = strsep(&options,",")) != NULL) {
1797                         /* Panel option - can be panel name,
1798                          * "bs" for board-switch, or number/index */
1799                         if (!strncmp(this_opt, "panel:", 6)) {
1800                                 int i;
1801                                 long int li;
1802                                 char *endptr;
1803                                 this_opt += 6;
1804                                 /* First check for index, which allows
1805                                  * to short circuit this mess */
1806                                 li = simple_strtol(this_opt, &endptr, 0);
1807                                 if (*endptr == '\0') {
1808                                         panel_idx = (int)li;
1809                                 }
1810                                 else if (strcmp(this_opt, "bs") == 0) {
1811                                         extern int board_au1200fb_panel(void);
1812                                         panel_idx = board_au1200fb_panel();
1813                                 }
1814
1815                                 else
1816                                 for (i = 0; i < num_panels; i++) {
1817                                         if (!strcmp(this_opt, known_lcd_panels[i].name)) {
1818                                                 panel_idx = i;
1819                                                 break;
1820                                         }
1821                                 }
1822
1823                                 if ((panel_idx < 0) || (panel_idx >= num_panels)) {
1824                                                 print_warn("Panel %s not supported!", this_opt);
1825                                 }
1826                                 else
1827                                         panel_index = panel_idx;
1828                         }
1829
1830                         else if (strncmp(this_opt, "nohwcursor", 10) == 0) {
1831                                 nohwcursor = 1;
1832                         }
1833
1834                         else if (strncmp(this_opt, "devices:", 8) == 0) {
1835                                 this_opt += 8;
1836                                 device_count = simple_strtol(this_opt,
1837                                                              &endptr, 0);
1838                                 if ((device_count < 0) ||
1839                                     (device_count > MAX_DEVICE_COUNT))
1840                                         device_count = MAX_DEVICE_COUNT;
1841                         }
1842
1843                         else if (strncmp(this_opt, "wincfg:", 7) == 0) {
1844                                 this_opt += 7;
1845                                 window_index = simple_strtol(this_opt,
1846                                                              &endptr, 0);
1847                                 if ((window_index < 0) ||
1848                                     (window_index >= ARRAY_SIZE(windows)))
1849                                         window_index = DEFAULT_WINDOW_INDEX;
1850                         }
1851
1852                         else if (strncmp(this_opt, "off", 3) == 0)
1853                                 return 1;
1854                         /* Unsupported option */
1855                         else {
1856                                 print_warn("Unsupported option \"%s\"", this_opt);
1857                         }
1858                 }
1859         }
1860         return 0;
1861 }
1862
1863 static int __init au1200fb_init(void)
1864 {
1865         print_info("" DRIVER_DESC "");
1866
1867         /* Setup driver with options */
1868         if (au1200fb_setup())
1869                 return -ENODEV;
1870
1871         /* Point to the panel selected */
1872         panel = &known_lcd_panels[panel_index];
1873         win = &windows[window_index];
1874
1875         printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
1876         printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
1877
1878         return platform_driver_register(&au1200fb_driver);
1879 }
1880
1881 static void __exit au1200fb_cleanup(void)
1882 {
1883         platform_driver_unregister(&au1200fb_driver);
1884 }
1885
1886 module_init(au1200fb_init);
1887 module_exit(au1200fb_cleanup);
1888
1889 MODULE_DESCRIPTION(DRIVER_DESC);
1890 MODULE_LICENSE("GPL");