linux/drivers/video/fbdev/via/viafbdev.c
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   1/*
   2 * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
   3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   4
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public
   7 * License as published by the Free Software Foundation;
   8 * either version 2, or (at your option) any later version.
   9
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
  12 * the implied warranty of MERCHANTABILITY or FITNESS FOR
  13 * A PARTICULAR PURPOSE.See the GNU General Public License
  14 * for more details.
  15
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc.,
  19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20 */
  21
  22#include <linux/module.h>
  23#include <linux/seq_file.h>
  24#include <linux/slab.h>
  25#include <linux/stat.h>
  26#include <linux/via-core.h>
  27#include <linux/via_i2c.h>
  28#include <asm/olpc.h>
  29
  30#define _MASTER_FILE
  31#include "global.h"
  32
  33static char *viafb_name = "Via";
  34static u32 pseudo_pal[17];
  35
  36/* video mode */
  37static char *viafb_mode;
  38static char *viafb_mode1;
  39static int viafb_bpp = 32;
  40static int viafb_bpp1 = 32;
  41
  42static unsigned int viafb_second_offset;
  43static int viafb_second_size;
  44
  45static int viafb_accel = 1;
  46
  47/* Added for specifying active devices.*/
  48static char *viafb_active_dev;
  49
  50/*Added for specify lcd output port*/
  51static char *viafb_lcd_port = "";
  52static char *viafb_dvi_port = "";
  53
  54static void retrieve_device_setting(struct viafb_ioctl_setting
  55        *setting_info);
  56static int viafb_pan_display(struct fb_var_screeninfo *var,
  57        struct fb_info *info);
  58
  59static struct fb_ops viafb_ops;
  60
  61/* supported output devices on each IGP
  62 * only CX700, VX800, VX855, VX900 were documented
  63 * VIA_CRT should be everywhere
  64 * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
  65 * source selection on CX700 and later
  66 * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
  67 */
  68static const u32 supported_odev_map[] = {
  69        [UNICHROME_CLE266]      = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
  70        [UNICHROME_K400]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  71                                | VIA_LVDS2,
  72        [UNICHROME_K800]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  73                                | VIA_LVDS2,
  74        [UNICHROME_PM800]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  75                                | VIA_LVDS2,
  76        [UNICHROME_CN700]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  77                                | VIA_LVDS2,
  78        [UNICHROME_CX700]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  79        [UNICHROME_CN750]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  80        [UNICHROME_K8M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  81        [UNICHROME_P4M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  82        [UNICHROME_P4M900]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  83        [UNICHROME_VX800]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  84        [UNICHROME_VX855]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  85        [UNICHROME_VX900]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  86};
  87
  88static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
  89{
  90        var->grayscale = 0;
  91        var->red.msb_right = 0;
  92        var->green.msb_right = 0;
  93        var->blue.msb_right = 0;
  94        var->transp.offset = 0;
  95        var->transp.length = 0;
  96        var->transp.msb_right = 0;
  97        var->nonstd = 0;
  98        switch (depth) {
  99        case 8:
 100                var->bits_per_pixel = 8;
 101                var->red.offset = 0;
 102                var->green.offset = 0;
 103                var->blue.offset = 0;
 104                var->red.length = 8;
 105                var->green.length = 8;
 106                var->blue.length = 8;
 107                break;
 108        case 15:
 109                var->bits_per_pixel = 16;
 110                var->red.offset = 10;
 111                var->green.offset = 5;
 112                var->blue.offset = 0;
 113                var->red.length = 5;
 114                var->green.length = 5;
 115                var->blue.length = 5;
 116                break;
 117        case 16:
 118                var->bits_per_pixel = 16;
 119                var->red.offset = 11;
 120                var->green.offset = 5;
 121                var->blue.offset = 0;
 122                var->red.length = 5;
 123                var->green.length = 6;
 124                var->blue.length = 5;
 125                break;
 126        case 24:
 127                var->bits_per_pixel = 32;
 128                var->red.offset = 16;
 129                var->green.offset = 8;
 130                var->blue.offset = 0;
 131                var->red.length = 8;
 132                var->green.length = 8;
 133                var->blue.length = 8;
 134                break;
 135        case 30:
 136                var->bits_per_pixel = 32;
 137                var->red.offset = 20;
 138                var->green.offset = 10;
 139                var->blue.offset = 0;
 140                var->red.length = 10;
 141                var->green.length = 10;
 142                var->blue.length = 10;
 143                break;
 144        }
 145}
 146
 147static void viafb_update_fix(struct fb_info *info)
 148{
 149        u32 bpp = info->var.bits_per_pixel;
 150
 151        info->fix.visual =
 152                bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 153        info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
 154                VIA_PITCH_SIZE);
 155}
 156
 157static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
 158        struct viafb_par *viaparinfo)
 159{
 160        memset(fix, 0, sizeof(struct fb_fix_screeninfo));
 161        strcpy(fix->id, viafb_name);
 162
 163        fix->smem_start = viaparinfo->fbmem;
 164        fix->smem_len = viaparinfo->fbmem_free;
 165
 166        fix->type = FB_TYPE_PACKED_PIXELS;
 167        fix->type_aux = 0;
 168        fix->visual = FB_VISUAL_TRUECOLOR;
 169
 170        fix->xpanstep = fix->ywrapstep = 0;
 171        fix->ypanstep = 1;
 172
 173        /* Just tell the accel name */
 174        viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
 175}
 176static int viafb_open(struct fb_info *info, int user)
 177{
 178        DEBUG_MSG(KERN_INFO "viafb_open!\n");
 179        return 0;
 180}
 181
 182static int viafb_release(struct fb_info *info, int user)
 183{
 184        DEBUG_MSG(KERN_INFO "viafb_release!\n");
 185        return 0;
 186}
 187
 188static inline int get_var_refresh(struct fb_var_screeninfo *var)
 189{
 190        u32 htotal, vtotal;
 191
 192        htotal = var->left_margin + var->xres + var->right_margin
 193                + var->hsync_len;
 194        vtotal = var->upper_margin + var->yres + var->lower_margin
 195                + var->vsync_len;
 196        return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
 197}
 198
 199static int viafb_check_var(struct fb_var_screeninfo *var,
 200        struct fb_info *info)
 201{
 202        int depth, refresh;
 203        struct viafb_par *ppar = info->par;
 204        u32 line;
 205
 206        DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
 207        /* Sanity check */
 208        /* HW neither support interlacte nor double-scaned mode */
 209        if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
 210                return -EINVAL;
 211
 212        /* the refresh rate is not important here, as we only want to know
 213         * whether the resolution exists
 214         */
 215        if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
 216                DEBUG_MSG(KERN_INFO
 217                          "viafb: Mode %dx%dx%d not supported!!\n",
 218                          var->xres, var->yres, var->bits_per_pixel);
 219                return -EINVAL;
 220        }
 221
 222        depth = fb_get_color_depth(var, &info->fix);
 223        if (!depth)
 224                depth = var->bits_per_pixel;
 225
 226        if (depth < 0 || depth > 32)
 227                return -EINVAL;
 228        else if (!depth)
 229                depth = 24;
 230        else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
 231                depth = 15;
 232        else if (depth == 30)
 233                depth = 30;
 234        else if (depth <= 8)
 235                depth = 8;
 236        else if (depth <= 16)
 237                depth = 16;
 238        else
 239                depth = 24;
 240
 241        viafb_fill_var_color_info(var, depth);
 242        if (var->xres_virtual < var->xres)
 243                var->xres_virtual = var->xres;
 244
 245        line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
 246                VIA_PITCH_SIZE);
 247        if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
 248                return -EINVAL;
 249
 250        /* Based on var passed in to calculate the refresh,
 251         * because our driver use some modes special.
 252         */
 253        refresh = viafb_get_refresh(var->xres, var->yres,
 254                get_var_refresh(var));
 255
 256        /* Adjust var according to our driver's own table */
 257        viafb_fill_var_timing_info(var,
 258                viafb_get_best_mode(var->xres, var->yres, refresh));
 259        if (var->accel_flags & FB_ACCELF_TEXT &&
 260                !ppar->shared->vdev->engine_mmio)
 261                var->accel_flags = 0;
 262
 263        return 0;
 264}
 265
 266static int viafb_set_par(struct fb_info *info)
 267{
 268        struct viafb_par *viapar = info->par;
 269        int refresh;
 270        DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
 271
 272        viafb_update_fix(info);
 273        viapar->depth = fb_get_color_depth(&info->var, &info->fix);
 274        viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
 275                viafbinfo->var.bits_per_pixel, 0);
 276
 277        if (viafb_dual_fb) {
 278                viafb_update_device_setting(viafbinfo1->var.xres,
 279                        viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
 280                        1);
 281        } else if (viafb_SAMM_ON == 1) {
 282                DEBUG_MSG(KERN_INFO
 283                "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
 284                          viafb_second_xres, viafb_second_yres, viafb_bpp1);
 285
 286                viafb_update_device_setting(viafb_second_xres,
 287                        viafb_second_yres, viafb_bpp1, 1);
 288        }
 289
 290        refresh = get_var_refresh(&info->var);
 291        if (viafb_dual_fb && viapar->iga_path == IGA2) {
 292                viafb_bpp1 = info->var.bits_per_pixel;
 293                viafb_refresh1 = refresh;
 294        } else {
 295                viafb_bpp = info->var.bits_per_pixel;
 296                viafb_refresh = refresh;
 297        }
 298
 299        if (info->var.accel_flags & FB_ACCELF_TEXT)
 300                info->flags &= ~FBINFO_HWACCEL_DISABLED;
 301        else
 302                info->flags |= FBINFO_HWACCEL_DISABLED;
 303        viafb_setmode();
 304        viafb_pan_display(&info->var, info);
 305
 306        return 0;
 307}
 308
 309/* Set one color register */
 310static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 311unsigned blue, unsigned transp, struct fb_info *info)
 312{
 313        struct viafb_par *viapar = info->par;
 314        u32 r, g, b;
 315
 316        if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
 317                if (regno > 255)
 318                        return -EINVAL;
 319
 320                if (!viafb_dual_fb || viapar->iga_path == IGA1)
 321                        viafb_set_primary_color_register(regno, red >> 8,
 322                                green >> 8, blue >> 8);
 323
 324                if (!viafb_dual_fb || viapar->iga_path == IGA2)
 325                        viafb_set_secondary_color_register(regno, red >> 8,
 326                                green >> 8, blue >> 8);
 327        } else {
 328                if (regno > 15)
 329                        return -EINVAL;
 330
 331                r = (red >> (16 - info->var.red.length))
 332                        << info->var.red.offset;
 333                b = (blue >> (16 - info->var.blue.length))
 334                        << info->var.blue.offset;
 335                g = (green >> (16 - info->var.green.length))
 336                        << info->var.green.offset;
 337                ((u32 *) info->pseudo_palette)[regno] = r | g | b;
 338        }
 339
 340        return 0;
 341}
 342
 343static int viafb_pan_display(struct fb_var_screeninfo *var,
 344        struct fb_info *info)
 345{
 346        struct viafb_par *viapar = info->par;
 347        u32 vram_addr = viapar->vram_addr
 348                + var->yoffset * info->fix.line_length
 349                + var->xoffset * info->var.bits_per_pixel / 8;
 350
 351        DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
 352        if (!viafb_dual_fb) {
 353                via_set_primary_address(vram_addr);
 354                via_set_secondary_address(vram_addr);
 355        } else if (viapar->iga_path == IGA1)
 356                via_set_primary_address(vram_addr);
 357        else
 358                via_set_secondary_address(vram_addr);
 359
 360        return 0;
 361}
 362
 363static int viafb_blank(int blank_mode, struct fb_info *info)
 364{
 365        DEBUG_MSG(KERN_INFO "viafb_blank!\n");
 366        /* clear DPMS setting */
 367
 368        switch (blank_mode) {
 369        case FB_BLANK_UNBLANK:
 370                /* Screen: On, HSync: On, VSync: On */
 371                /* control CRT monitor power management */
 372                via_set_state(VIA_CRT, VIA_STATE_ON);
 373                break;
 374        case FB_BLANK_HSYNC_SUSPEND:
 375                /* Screen: Off, HSync: Off, VSync: On */
 376                /* control CRT monitor power management */
 377                via_set_state(VIA_CRT, VIA_STATE_STANDBY);
 378                break;
 379        case FB_BLANK_VSYNC_SUSPEND:
 380                /* Screen: Off, HSync: On, VSync: Off */
 381                /* control CRT monitor power management */
 382                via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
 383                break;
 384        case FB_BLANK_POWERDOWN:
 385                /* Screen: Off, HSync: Off, VSync: Off */
 386                /* control CRT monitor power management */
 387                via_set_state(VIA_CRT, VIA_STATE_OFF);
 388                break;
 389        }
 390
 391        return 0;
 392}
 393
 394static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 395{
 396        union {
 397                struct viafb_ioctl_mode viamode;
 398                struct viafb_ioctl_samm viasamm;
 399                struct viafb_driver_version driver_version;
 400                struct fb_var_screeninfo sec_var;
 401                struct _panel_size_pos_info panel_pos_size_para;
 402                struct viafb_ioctl_setting viafb_setting;
 403                struct device_t active_dev;
 404        } u;
 405        u32 state_info = 0;
 406        u32 *viafb_gamma_table;
 407        char driver_name[] = "viafb";
 408
 409        u32 __user *argp = (u32 __user *) arg;
 410        u32 gpu32;
 411
 412        DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
 413        printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
 414        memset(&u, 0, sizeof(u));
 415
 416        switch (cmd) {
 417        case VIAFB_GET_CHIP_INFO:
 418                if (copy_to_user(argp, viaparinfo->chip_info,
 419                                sizeof(struct chip_information)))
 420                        return -EFAULT;
 421                break;
 422        case VIAFB_GET_INFO_SIZE:
 423                return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
 424        case VIAFB_GET_INFO:
 425                return viafb_ioctl_get_viafb_info(arg);
 426        case VIAFB_HOTPLUG:
 427                return put_user(viafb_ioctl_hotplug(info->var.xres,
 428                                              info->var.yres,
 429                                              info->var.bits_per_pixel), argp);
 430        case VIAFB_SET_HOTPLUG_FLAG:
 431                if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 432                        return -EFAULT;
 433                viafb_hotplug = (gpu32) ? 1 : 0;
 434                break;
 435        case VIAFB_GET_RESOLUTION:
 436                u.viamode.xres = (u32) viafb_hotplug_Xres;
 437                u.viamode.yres = (u32) viafb_hotplug_Yres;
 438                u.viamode.refresh = (u32) viafb_hotplug_refresh;
 439                u.viamode.bpp = (u32) viafb_hotplug_bpp;
 440                if (viafb_SAMM_ON == 1) {
 441                        u.viamode.xres_sec = viafb_second_xres;
 442                        u.viamode.yres_sec = viafb_second_yres;
 443                        u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
 444                        u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
 445                        u.viamode.refresh_sec = viafb_refresh1;
 446                        u.viamode.bpp_sec = viafb_bpp1;
 447                } else {
 448                        u.viamode.xres_sec = 0;
 449                        u.viamode.yres_sec = 0;
 450                        u.viamode.virtual_xres_sec = 0;
 451                        u.viamode.virtual_yres_sec = 0;
 452                        u.viamode.refresh_sec = 0;
 453                        u.viamode.bpp_sec = 0;
 454                }
 455                if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
 456                        return -EFAULT;
 457                break;
 458        case VIAFB_GET_SAMM_INFO:
 459                u.viasamm.samm_status = viafb_SAMM_ON;
 460
 461                if (viafb_SAMM_ON == 1) {
 462                        if (viafb_dual_fb) {
 463                                u.viasamm.size_prim = viaparinfo->fbmem_free;
 464                                u.viasamm.size_sec = viaparinfo1->fbmem_free;
 465                        } else {
 466                                if (viafb_second_size) {
 467                                        u.viasamm.size_prim =
 468                                            viaparinfo->fbmem_free -
 469                                            viafb_second_size * 1024 * 1024;
 470                                        u.viasamm.size_sec =
 471                                            viafb_second_size * 1024 * 1024;
 472                                } else {
 473                                        u.viasamm.size_prim =
 474                                            viaparinfo->fbmem_free >> 1;
 475                                        u.viasamm.size_sec =
 476                                            (viaparinfo->fbmem_free >> 1);
 477                                }
 478                        }
 479                        u.viasamm.mem_base = viaparinfo->fbmem;
 480                        u.viasamm.offset_sec = viafb_second_offset;
 481                } else {
 482                        u.viasamm.size_prim =
 483                            viaparinfo->memsize - viaparinfo->fbmem_used;
 484                        u.viasamm.size_sec = 0;
 485                        u.viasamm.mem_base = viaparinfo->fbmem;
 486                        u.viasamm.offset_sec = 0;
 487                }
 488
 489                if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
 490                        return -EFAULT;
 491
 492                break;
 493        case VIAFB_TURN_ON_OUTPUT_DEVICE:
 494                if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 495                        return -EFAULT;
 496                if (gpu32 & CRT_Device)
 497                        via_set_state(VIA_CRT, VIA_STATE_ON);
 498                if (gpu32 & DVI_Device)
 499                        viafb_dvi_enable();
 500                if (gpu32 & LCD_Device)
 501                        viafb_lcd_enable();
 502                break;
 503        case VIAFB_TURN_OFF_OUTPUT_DEVICE:
 504                if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 505                        return -EFAULT;
 506                if (gpu32 & CRT_Device)
 507                        via_set_state(VIA_CRT, VIA_STATE_OFF);
 508                if (gpu32 & DVI_Device)
 509                        viafb_dvi_disable();
 510                if (gpu32 & LCD_Device)
 511                        viafb_lcd_disable();
 512                break;
 513        case VIAFB_GET_DEVICE:
 514                u.active_dev.crt = viafb_CRT_ON;
 515                u.active_dev.dvi = viafb_DVI_ON;
 516                u.active_dev.lcd = viafb_LCD_ON;
 517                u.active_dev.samm = viafb_SAMM_ON;
 518                u.active_dev.primary_dev = viafb_primary_dev;
 519
 520                u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
 521                u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
 522                u.active_dev.lcd_mode = viafb_lcd_mode;
 523
 524                u.active_dev.xres = viafb_hotplug_Xres;
 525                u.active_dev.yres = viafb_hotplug_Yres;
 526
 527                u.active_dev.xres1 = viafb_second_xres;
 528                u.active_dev.yres1 = viafb_second_yres;
 529
 530                u.active_dev.bpp = viafb_bpp;
 531                u.active_dev.bpp1 = viafb_bpp1;
 532                u.active_dev.refresh = viafb_refresh;
 533                u.active_dev.refresh1 = viafb_refresh1;
 534
 535                u.active_dev.epia_dvi = viafb_platform_epia_dvi;
 536                u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
 537                u.active_dev.bus_width = viafb_bus_width;
 538
 539                if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
 540                        return -EFAULT;
 541                break;
 542
 543        case VIAFB_GET_DRIVER_VERSION:
 544                u.driver_version.iMajorNum = VERSION_MAJOR;
 545                u.driver_version.iKernelNum = VERSION_KERNEL;
 546                u.driver_version.iOSNum = VERSION_OS;
 547                u.driver_version.iMinorNum = VERSION_MINOR;
 548
 549                if (copy_to_user(argp, &u.driver_version,
 550                        sizeof(u.driver_version)))
 551                        return -EFAULT;
 552
 553                break;
 554
 555        case VIAFB_GET_DEVICE_INFO:
 556
 557                retrieve_device_setting(&u.viafb_setting);
 558
 559                if (copy_to_user(argp, &u.viafb_setting,
 560                                 sizeof(u.viafb_setting)))
 561                        return -EFAULT;
 562
 563                break;
 564
 565        case VIAFB_GET_DEVICE_SUPPORT:
 566                viafb_get_device_support_state(&state_info);
 567                if (put_user(state_info, argp))
 568                        return -EFAULT;
 569                break;
 570
 571        case VIAFB_GET_DEVICE_CONNECT:
 572                viafb_get_device_connect_state(&state_info);
 573                if (put_user(state_info, argp))
 574                        return -EFAULT;
 575                break;
 576
 577        case VIAFB_GET_PANEL_SUPPORT_EXPAND:
 578                state_info =
 579                    viafb_lcd_get_support_expand_state(info->var.xres,
 580                                                 info->var.yres);
 581                if (put_user(state_info, argp))
 582                        return -EFAULT;
 583                break;
 584
 585        case VIAFB_GET_DRIVER_NAME:
 586                if (copy_to_user(argp, driver_name, sizeof(driver_name)))
 587                        return -EFAULT;
 588                break;
 589
 590        case VIAFB_SET_GAMMA_LUT:
 591                viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
 592                if (IS_ERR(viafb_gamma_table))
 593                        return PTR_ERR(viafb_gamma_table);
 594                viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
 595                kfree(viafb_gamma_table);
 596                break;
 597
 598        case VIAFB_GET_GAMMA_LUT:
 599                viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
 600                if (!viafb_gamma_table)
 601                        return -ENOMEM;
 602                viafb_get_gamma_table(viafb_gamma_table);
 603                if (copy_to_user(argp, viafb_gamma_table,
 604                        256 * sizeof(u32))) {
 605                        kfree(viafb_gamma_table);
 606                        return -EFAULT;
 607                }
 608                kfree(viafb_gamma_table);
 609                break;
 610
 611        case VIAFB_GET_GAMMA_SUPPORT_STATE:
 612                viafb_get_gamma_support_state(viafb_bpp, &state_info);
 613                if (put_user(state_info, argp))
 614                        return -EFAULT;
 615                break;
 616        case VIAFB_SYNC_SURFACE:
 617                DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
 618                break;
 619        case VIAFB_GET_DRIVER_CAPS:
 620                break;
 621
 622        case VIAFB_GET_PANEL_MAX_SIZE:
 623                if (copy_from_user(&u.panel_pos_size_para, argp,
 624                                   sizeof(u.panel_pos_size_para)))
 625                        return -EFAULT;
 626                u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 627                if (copy_to_user(argp, &u.panel_pos_size_para,
 628                     sizeof(u.panel_pos_size_para)))
 629                        return -EFAULT;
 630                break;
 631        case VIAFB_GET_PANEL_MAX_POSITION:
 632                if (copy_from_user(&u.panel_pos_size_para, argp,
 633                                   sizeof(u.panel_pos_size_para)))
 634                        return -EFAULT;
 635                u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 636                if (copy_to_user(argp, &u.panel_pos_size_para,
 637                                 sizeof(u.panel_pos_size_para)))
 638                        return -EFAULT;
 639                break;
 640
 641        case VIAFB_GET_PANEL_POSITION:
 642                if (copy_from_user(&u.panel_pos_size_para, argp,
 643                                   sizeof(u.panel_pos_size_para)))
 644                        return -EFAULT;
 645                u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 646                if (copy_to_user(argp, &u.panel_pos_size_para,
 647                                 sizeof(u.panel_pos_size_para)))
 648                        return -EFAULT;
 649                break;
 650        case VIAFB_GET_PANEL_SIZE:
 651                if (copy_from_user(&u.panel_pos_size_para, argp,
 652                                   sizeof(u.panel_pos_size_para)))
 653                        return -EFAULT;
 654                u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 655                if (copy_to_user(argp, &u.panel_pos_size_para,
 656                                 sizeof(u.panel_pos_size_para)))
 657                        return -EFAULT;
 658                break;
 659
 660        case VIAFB_SET_PANEL_POSITION:
 661                if (copy_from_user(&u.panel_pos_size_para, argp,
 662                                   sizeof(u.panel_pos_size_para)))
 663                        return -EFAULT;
 664                break;
 665        case VIAFB_SET_PANEL_SIZE:
 666                if (copy_from_user(&u.panel_pos_size_para, argp,
 667                                   sizeof(u.panel_pos_size_para)))
 668                        return -EFAULT;
 669                break;
 670
 671        default:
 672                return -EINVAL;
 673        }
 674
 675        return 0;
 676}
 677
 678static void viafb_fillrect(struct fb_info *info,
 679        const struct fb_fillrect *rect)
 680{
 681        struct viafb_par *viapar = info->par;
 682        struct viafb_shared *shared = viapar->shared;
 683        u32 fg_color;
 684        u8 rop;
 685
 686        if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 687                cfb_fillrect(info, rect);
 688                return;
 689        }
 690
 691        if (!rect->width || !rect->height)
 692                return;
 693
 694        if (info->fix.visual == FB_VISUAL_TRUECOLOR)
 695                fg_color = ((u32 *)info->pseudo_palette)[rect->color];
 696        else
 697                fg_color = rect->color;
 698
 699        if (rect->rop == ROP_XOR)
 700                rop = 0x5A;
 701        else
 702                rop = 0xF0;
 703
 704        DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
 705        if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
 706                rect->width, rect->height, info->var.bits_per_pixel,
 707                viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
 708                NULL, 0, 0, 0, 0, fg_color, 0, rop))
 709                cfb_fillrect(info, rect);
 710}
 711
 712static void viafb_copyarea(struct fb_info *info,
 713        const struct fb_copyarea *area)
 714{
 715        struct viafb_par *viapar = info->par;
 716        struct viafb_shared *shared = viapar->shared;
 717
 718        if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 719                cfb_copyarea(info, area);
 720                return;
 721        }
 722
 723        if (!area->width || !area->height)
 724                return;
 725
 726        DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
 727        if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
 728                area->width, area->height, info->var.bits_per_pixel,
 729                viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
 730                NULL, viapar->vram_addr, info->fix.line_length,
 731                area->sx, area->sy, 0, 0, 0))
 732                cfb_copyarea(info, area);
 733}
 734
 735static void viafb_imageblit(struct fb_info *info,
 736        const struct fb_image *image)
 737{
 738        struct viafb_par *viapar = info->par;
 739        struct viafb_shared *shared = viapar->shared;
 740        u32 fg_color = 0, bg_color = 0;
 741        u8 op;
 742
 743        if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
 744                (image->depth != 1 && image->depth != viapar->depth)) {
 745                cfb_imageblit(info, image);
 746                return;
 747        }
 748
 749        if (image->depth == 1) {
 750                op = VIA_BITBLT_MONO;
 751                if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
 752                        fg_color =
 753                                ((u32 *)info->pseudo_palette)[image->fg_color];
 754                        bg_color =
 755                                ((u32 *)info->pseudo_palette)[image->bg_color];
 756                } else {
 757                        fg_color = image->fg_color;
 758                        bg_color = image->bg_color;
 759                }
 760        } else
 761                op = VIA_BITBLT_COLOR;
 762
 763        DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
 764        if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
 765                image->width, image->height, info->var.bits_per_pixel,
 766                viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
 767                (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
 768                cfb_imageblit(info, image);
 769}
 770
 771static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 772{
 773        struct viafb_par *viapar = info->par;
 774        void __iomem *engine = viapar->shared->vdev->engine_mmio;
 775        u32 temp, xx, yy, bg_color = 0, fg_color = 0,
 776                chip_name = viapar->shared->chip_info.gfx_chip_name;
 777        int i, j = 0, cur_size = 64;
 778
 779        if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
 780                return -ENODEV;
 781
 782        /* LCD ouput does not support hw cursors (at least on VN896) */
 783        if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
 784                viafb_LCD_ON)
 785                return -ENODEV;
 786
 787        viafb_show_hw_cursor(info, HW_Cursor_OFF);
 788
 789        if (cursor->set & FB_CUR_SETHOT) {
 790                temp = (cursor->hot.x << 16) + cursor->hot.y;
 791                writel(temp, engine + VIA_REG_CURSOR_ORG);
 792        }
 793
 794        if (cursor->set & FB_CUR_SETPOS) {
 795                yy = cursor->image.dy - info->var.yoffset;
 796                xx = cursor->image.dx - info->var.xoffset;
 797                temp = yy & 0xFFFF;
 798                temp |= (xx << 16);
 799                writel(temp, engine + VIA_REG_CURSOR_POS);
 800        }
 801
 802        if (cursor->image.width <= 32 && cursor->image.height <= 32)
 803                cur_size = 32;
 804        else if (cursor->image.width <= 64 && cursor->image.height <= 64)
 805                cur_size = 64;
 806        else {
 807                printk(KERN_WARNING "viafb_cursor: The cursor is too large "
 808                        "%dx%d", cursor->image.width, cursor->image.height);
 809                return -ENXIO;
 810        }
 811
 812        if (cursor->set & FB_CUR_SETSIZE) {
 813                temp = readl(engine + VIA_REG_CURSOR_MODE);
 814                if (cur_size == 32)
 815                        temp |= 0x2;
 816                else
 817                        temp &= ~0x2;
 818
 819                writel(temp, engine + VIA_REG_CURSOR_MODE);
 820        }
 821
 822        if (cursor->set & FB_CUR_SETCMAP) {
 823                fg_color = cursor->image.fg_color;
 824                bg_color = cursor->image.bg_color;
 825                if (chip_name == UNICHROME_CX700 ||
 826                        chip_name == UNICHROME_VX800 ||
 827                        chip_name == UNICHROME_VX855 ||
 828                        chip_name == UNICHROME_VX900) {
 829                        fg_color =
 830                                ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
 831                                ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
 832                                ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
 833                        bg_color =
 834                                ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
 835                                ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
 836                                ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
 837                } else {
 838                        fg_color =
 839                                ((info->cmap.red[fg_color] & 0xFF00) << 8) |
 840                                (info->cmap.green[fg_color] & 0xFF00) |
 841                                ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
 842                        bg_color =
 843                                ((info->cmap.red[bg_color] & 0xFF00) << 8) |
 844                                (info->cmap.green[bg_color] & 0xFF00) |
 845                                ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
 846                }
 847
 848                writel(bg_color, engine + VIA_REG_CURSOR_BG);
 849                writel(fg_color, engine + VIA_REG_CURSOR_FG);
 850        }
 851
 852        if (cursor->set & FB_CUR_SETSHAPE) {
 853                struct {
 854                        u8 data[CURSOR_SIZE];
 855                        u32 bak[CURSOR_SIZE / 4];
 856                } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
 857                int size = ((cursor->image.width + 7) >> 3) *
 858                        cursor->image.height;
 859
 860                if (!cr_data)
 861                        return -ENOMEM;
 862
 863                if (cur_size == 32) {
 864                        for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 865                                cr_data->bak[i] = 0x0;
 866                                cr_data->bak[i + 1] = 0xFFFFFFFF;
 867                                i += 1;
 868                        }
 869                } else {
 870                        for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 871                                cr_data->bak[i] = 0x0;
 872                                cr_data->bak[i + 1] = 0x0;
 873                                cr_data->bak[i + 2] = 0xFFFFFFFF;
 874                                cr_data->bak[i + 3] = 0xFFFFFFFF;
 875                                i += 3;
 876                        }
 877                }
 878
 879                switch (cursor->rop) {
 880                case ROP_XOR:
 881                        for (i = 0; i < size; i++)
 882                                cr_data->data[i] = cursor->mask[i];
 883                        break;
 884                case ROP_COPY:
 885
 886                        for (i = 0; i < size; i++)
 887                                cr_data->data[i] = cursor->mask[i];
 888                        break;
 889                default:
 890                        break;
 891                }
 892
 893                if (cur_size == 32) {
 894                        for (i = 0; i < size; i++) {
 895                                cr_data->bak[j] = (u32) cr_data->data[i];
 896                                cr_data->bak[j + 1] = ~cr_data->bak[j];
 897                                j += 2;
 898                        }
 899                } else {
 900                        for (i = 0; i < size; i++) {
 901                                cr_data->bak[j] = (u32) cr_data->data[i];
 902                                cr_data->bak[j + 1] = 0x0;
 903                                cr_data->bak[j + 2] = ~cr_data->bak[j];
 904                                cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
 905                                j += 4;
 906                        }
 907                }
 908
 909                memcpy_toio(viafbinfo->screen_base + viapar->shared->
 910                        cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
 911                kfree(cr_data);
 912        }
 913
 914        if (cursor->enable)
 915                viafb_show_hw_cursor(info, HW_Cursor_ON);
 916
 917        return 0;
 918}
 919
 920static int viafb_sync(struct fb_info *info)
 921{
 922        if (!(info->flags & FBINFO_HWACCEL_DISABLED))
 923                viafb_wait_engine_idle(info);
 924        return 0;
 925}
 926
 927static int get_primary_device(void)
 928{
 929        int primary_device = 0;
 930        /* Rule: device on iga1 path are the primary device. */
 931        if (viafb_SAMM_ON) {
 932                if (viafb_CRT_ON) {
 933                        if (viaparinfo->shared->iga1_devices & VIA_CRT) {
 934                                DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
 935                                primary_device = CRT_Device;
 936                        }
 937                }
 938                if (viafb_DVI_ON) {
 939                        if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
 940                                DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
 941                                        viaparinfo->
 942                                        tmds_setting_info->iga_path);
 943                                primary_device = DVI_Device;
 944                        }
 945                }
 946                if (viafb_LCD_ON) {
 947                        if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
 948                                DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
 949                                        viaparinfo->
 950                                        lvds_setting_info->iga_path);
 951                                primary_device = LCD_Device;
 952                        }
 953                }
 954                if (viafb_LCD2_ON) {
 955                        if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
 956                                DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
 957                                        viaparinfo->
 958                                        lvds_setting_info2->iga_path);
 959                                primary_device = LCD2_Device;
 960                        }
 961                }
 962        }
 963        return primary_device;
 964}
 965
 966static void retrieve_device_setting(struct viafb_ioctl_setting
 967        *setting_info)
 968{
 969
 970        /* get device status */
 971        if (viafb_CRT_ON == 1)
 972                setting_info->device_status = CRT_Device;
 973        if (viafb_DVI_ON == 1)
 974                setting_info->device_status |= DVI_Device;
 975        if (viafb_LCD_ON == 1)
 976                setting_info->device_status |= LCD_Device;
 977        if (viafb_LCD2_ON == 1)
 978                setting_info->device_status |= LCD2_Device;
 979
 980        setting_info->samm_status = viafb_SAMM_ON;
 981        setting_info->primary_device = get_primary_device();
 982
 983        setting_info->first_dev_bpp = viafb_bpp;
 984        setting_info->second_dev_bpp = viafb_bpp1;
 985
 986        setting_info->first_dev_refresh = viafb_refresh;
 987        setting_info->second_dev_refresh = viafb_refresh1;
 988
 989        setting_info->first_dev_hor_res = viafb_hotplug_Xres;
 990        setting_info->first_dev_ver_res = viafb_hotplug_Yres;
 991        setting_info->second_dev_hor_res = viafb_second_xres;
 992        setting_info->second_dev_ver_res = viafb_second_yres;
 993
 994        /* Get lcd attributes */
 995        setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
 996        setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
 997        setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
 998}
 999
1000static int __init parse_active_dev(void)
1001{
1002        viafb_CRT_ON = STATE_OFF;
1003        viafb_DVI_ON = STATE_OFF;
1004        viafb_LCD_ON = STATE_OFF;
1005        viafb_LCD2_ON = STATE_OFF;
1006        /* 1. Modify the active status of devices. */
1007        /* 2. Keep the order of devices, so we can set corresponding
1008           IGA path to devices in SAMM case. */
1009        /*    Note: The previous of active_dev is primary device,
1010           and the following is secondary device. */
1011        if (!viafb_active_dev) {
1012                if (machine_is_olpc()) { /* LCD only */
1013                        viafb_LCD_ON = STATE_ON;
1014                        viafb_SAMM_ON = STATE_OFF;
1015                } else {
1016                        viafb_CRT_ON = STATE_ON;
1017                        viafb_SAMM_ON = STATE_OFF;
1018                }
1019        } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1020                /* CRT+DVI */
1021                viafb_CRT_ON = STATE_ON;
1022                viafb_DVI_ON = STATE_ON;
1023                viafb_primary_dev = CRT_Device;
1024        } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1025                /* DVI+CRT */
1026                viafb_CRT_ON = STATE_ON;
1027                viafb_DVI_ON = STATE_ON;
1028                viafb_primary_dev = DVI_Device;
1029        } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1030                /* CRT+LCD */
1031                viafb_CRT_ON = STATE_ON;
1032                viafb_LCD_ON = STATE_ON;
1033                viafb_primary_dev = CRT_Device;
1034        } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1035                /* LCD+CRT */
1036                viafb_CRT_ON = STATE_ON;
1037                viafb_LCD_ON = STATE_ON;
1038                viafb_primary_dev = LCD_Device;
1039        } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1040                /* DVI+LCD */
1041                viafb_DVI_ON = STATE_ON;
1042                viafb_LCD_ON = STATE_ON;
1043                viafb_primary_dev = DVI_Device;
1044        } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1045                /* LCD+DVI */
1046                viafb_DVI_ON = STATE_ON;
1047                viafb_LCD_ON = STATE_ON;
1048                viafb_primary_dev = LCD_Device;
1049        } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1050                viafb_LCD_ON = STATE_ON;
1051                viafb_LCD2_ON = STATE_ON;
1052                viafb_primary_dev = LCD_Device;
1053        } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1054                viafb_LCD_ON = STATE_ON;
1055                viafb_LCD2_ON = STATE_ON;
1056                viafb_primary_dev = LCD2_Device;
1057        } else if (!strcmp(viafb_active_dev, "CRT")) {
1058                /* CRT only */
1059                viafb_CRT_ON = STATE_ON;
1060                viafb_SAMM_ON = STATE_OFF;
1061        } else if (!strcmp(viafb_active_dev, "DVI")) {
1062                /* DVI only */
1063                viafb_DVI_ON = STATE_ON;
1064                viafb_SAMM_ON = STATE_OFF;
1065        } else if (!strcmp(viafb_active_dev, "LCD")) {
1066                /* LCD only */
1067                viafb_LCD_ON = STATE_ON;
1068                viafb_SAMM_ON = STATE_OFF;
1069        } else
1070                return -EINVAL;
1071
1072        return 0;
1073}
1074
1075static int parse_port(char *opt_str, int *output_interface)
1076{
1077        if (!strncmp(opt_str, "DVP0", 4))
1078                *output_interface = INTERFACE_DVP0;
1079        else if (!strncmp(opt_str, "DVP1", 4))
1080                *output_interface = INTERFACE_DVP1;
1081        else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1082                *output_interface = INTERFACE_DFP;
1083        else if (!strncmp(opt_str, "DFP_HIGH", 8))
1084                *output_interface = INTERFACE_DFP_HIGH;
1085        else if (!strncmp(opt_str, "DFP_LOW", 7))
1086                *output_interface = INTERFACE_DFP_LOW;
1087        else
1088                *output_interface = INTERFACE_NONE;
1089        return 0;
1090}
1091
1092static void parse_lcd_port(void)
1093{
1094        parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1095                output_interface);
1096        /*Initialize to avoid unexpected behavior */
1097        viaparinfo->chip_info->lvds_chip_info2.output_interface =
1098        INTERFACE_NONE;
1099
1100        DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1101                  viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1102                  output_interface);
1103}
1104
1105static void parse_dvi_port(void)
1106{
1107        parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1108                output_interface);
1109
1110        DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1111                  viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1112                  output_interface);
1113}
1114
1115#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1116
1117/*
1118 * The proc filesystem read/write function, a simple proc implement to
1119 * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1120 * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1121 * CR9B,    SR65,    CR97,    CR99
1122 */
1123static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1124{
1125        u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1126        dvp0_data_dri =
1127            (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1128            (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1129        dvp0_clk_dri =
1130            (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1131            (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1132        dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1133        seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1134        return 0;
1135}
1136
1137static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1138{
1139        return single_open(file, viafb_dvp0_proc_show, NULL);
1140}
1141
1142static ssize_t viafb_dvp0_proc_write(struct file *file,
1143        const char __user *buffer, size_t count, loff_t *pos)
1144{
1145        char buf[20], *value, *pbuf;
1146        u8 reg_val = 0;
1147        unsigned long length, i;
1148        if (count < 1)
1149                return -EINVAL;
1150        length = count > 20 ? 20 : count;
1151        if (copy_from_user(&buf[0], buffer, length))
1152                return -EFAULT;
1153        buf[length - 1] = '\0'; /*Ensure end string */
1154        pbuf = &buf[0];
1155        for (i = 0; i < 3; i++) {
1156                value = strsep(&pbuf, " ");
1157                if (value != NULL) {
1158                        if (kstrtou8(value, 0, &reg_val) < 0)
1159                                return -EINVAL;
1160                        DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1161                                  reg_val);
1162                        switch (i) {
1163                        case 0:
1164                                viafb_write_reg_mask(CR96, VIACR,
1165                                        reg_val, 0x0f);
1166                                break;
1167                        case 1:
1168                                viafb_write_reg_mask(SR2A, VIASR,
1169                                        reg_val << 4, BIT5);
1170                                viafb_write_reg_mask(SR1B, VIASR,
1171                                        reg_val << 1, BIT1);
1172                                break;
1173                        case 2:
1174                                viafb_write_reg_mask(SR2A, VIASR,
1175                                        reg_val << 3, BIT4);
1176                                viafb_write_reg_mask(SR1E, VIASR,
1177                                        reg_val << 2, BIT2);
1178                                break;
1179                        default:
1180                                break;
1181                        }
1182                } else {
1183                        break;
1184                }
1185        }
1186        return count;
1187}
1188
1189static const struct file_operations viafb_dvp0_proc_fops = {
1190        .owner          = THIS_MODULE,
1191        .open           = viafb_dvp0_proc_open,
1192        .read           = seq_read,
1193        .llseek         = seq_lseek,
1194        .release        = single_release,
1195        .write          = viafb_dvp0_proc_write,
1196};
1197
1198static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1199{
1200        u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1201        dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1202        dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1203        dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1204        seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1205        return 0;
1206}
1207
1208static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1209{
1210        return single_open(file, viafb_dvp1_proc_show, NULL);
1211}
1212
1213static ssize_t viafb_dvp1_proc_write(struct file *file,
1214        const char __user *buffer, size_t count, loff_t *pos)
1215{
1216        char buf[20], *value, *pbuf;
1217        u8 reg_val = 0;
1218        unsigned long length, i;
1219        if (count < 1)
1220                return -EINVAL;
1221        length = count > 20 ? 20 : count;
1222        if (copy_from_user(&buf[0], buffer, length))
1223                return -EFAULT;
1224        buf[length - 1] = '\0'; /*Ensure end string */
1225        pbuf = &buf[0];
1226        for (i = 0; i < 3; i++) {
1227                value = strsep(&pbuf, " ");
1228                if (value != NULL) {
1229                        if (kstrtou8(value, 0, &reg_val) < 0)
1230                                return -EINVAL;
1231                        switch (i) {
1232                        case 0:
1233                                viafb_write_reg_mask(CR9B, VIACR,
1234                                        reg_val, 0x0f);
1235                                break;
1236                        case 1:
1237                                viafb_write_reg_mask(SR65, VIASR,
1238                                        reg_val << 2, 0x0c);
1239                                break;
1240                        case 2:
1241                                viafb_write_reg_mask(SR65, VIASR,
1242                                        reg_val, 0x03);
1243                                break;
1244                        default:
1245                                break;
1246                        }
1247                } else {
1248                        break;
1249                }
1250        }
1251        return count;
1252}
1253
1254static const struct file_operations viafb_dvp1_proc_fops = {
1255        .owner          = THIS_MODULE,
1256        .open           = viafb_dvp1_proc_open,
1257        .read           = seq_read,
1258        .llseek         = seq_lseek,
1259        .release        = single_release,
1260        .write          = viafb_dvp1_proc_write,
1261};
1262
1263static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1264{
1265        u8 dfp_high = 0;
1266        dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1267        seq_printf(m, "%x\n", dfp_high);
1268        return 0;
1269}
1270
1271static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1272{
1273        return single_open(file, viafb_dfph_proc_show, NULL);
1274}
1275
1276static ssize_t viafb_dfph_proc_write(struct file *file,
1277        const char __user *buffer, size_t count, loff_t *pos)
1278{
1279        int err;
1280        u8 reg_val;
1281        err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1282        if (err)
1283                return err;
1284
1285        viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1286        return count;
1287}
1288
1289static const struct file_operations viafb_dfph_proc_fops = {
1290        .owner          = THIS_MODULE,
1291        .open           = viafb_dfph_proc_open,
1292        .read           = seq_read,
1293        .llseek         = seq_lseek,
1294        .release        = single_release,
1295        .write          = viafb_dfph_proc_write,
1296};
1297
1298static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1299{
1300        u8 dfp_low = 0;
1301        dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1302        seq_printf(m, "%x\n", dfp_low);
1303        return 0;
1304}
1305
1306static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1307{
1308        return single_open(file, viafb_dfpl_proc_show, NULL);
1309}
1310
1311static ssize_t viafb_dfpl_proc_write(struct file *file,
1312        const char __user *buffer, size_t count, loff_t *pos)
1313{
1314        int err;
1315        u8 reg_val;
1316        err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1317        if (err)
1318                return err;
1319
1320        viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1321        return count;
1322}
1323
1324static const struct file_operations viafb_dfpl_proc_fops = {
1325        .owner          = THIS_MODULE,
1326        .open           = viafb_dfpl_proc_open,
1327        .read           = seq_read,
1328        .llseek         = seq_lseek,
1329        .release        = single_release,
1330        .write          = viafb_dfpl_proc_write,
1331};
1332
1333static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1334{
1335        u8 vt1636_08 = 0, vt1636_09 = 0;
1336        switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1337        case VT1636_LVDS:
1338                vt1636_08 =
1339                    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1340                    &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1341                vt1636_09 =
1342                    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1343                    &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1344                seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1345                break;
1346        default:
1347                break;
1348        }
1349        switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1350        case VT1636_LVDS:
1351                vt1636_08 =
1352                    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1353                        &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1354                vt1636_09 =
1355                    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1356                        &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1357                seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1358                break;
1359        default:
1360                break;
1361        }
1362        return 0;
1363}
1364
1365static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1366{
1367        return single_open(file, viafb_vt1636_proc_show, NULL);
1368}
1369
1370static ssize_t viafb_vt1636_proc_write(struct file *file,
1371        const char __user *buffer, size_t count, loff_t *pos)
1372{
1373        char buf[30], *value, *pbuf;
1374        struct IODATA reg_val;
1375        unsigned long length, i;
1376        if (count < 1)
1377                return -EINVAL;
1378        length = count > 30 ? 30 : count;
1379        if (copy_from_user(&buf[0], buffer, length))
1380                return -EFAULT;
1381        buf[length - 1] = '\0'; /*Ensure end string */
1382        pbuf = &buf[0];
1383        switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1384        case VT1636_LVDS:
1385                for (i = 0; i < 2; i++) {
1386                        value = strsep(&pbuf, " ");
1387                        if (value != NULL) {
1388                                if (kstrtou8(value, 0, &reg_val.Data) < 0)
1389                                        return -EINVAL;
1390                                switch (i) {
1391                                case 0:
1392                                        reg_val.Index = 0x08;
1393                                        reg_val.Mask = 0x0f;
1394                                        viafb_gpio_i2c_write_mask_lvds
1395                                            (viaparinfo->lvds_setting_info,
1396                                            &viaparinfo->
1397                                            chip_info->lvds_chip_info,
1398                                             reg_val);
1399                                        break;
1400                                case 1:
1401                                        reg_val.Index = 0x09;
1402                                        reg_val.Mask = 0x1f;
1403                                        viafb_gpio_i2c_write_mask_lvds
1404                                            (viaparinfo->lvds_setting_info,
1405                                            &viaparinfo->
1406                                            chip_info->lvds_chip_info,
1407                                             reg_val);
1408                                        break;
1409                                default:
1410                                        break;
1411                                }
1412                        } else {
1413                                break;
1414                        }
1415                }
1416                break;
1417        default:
1418                break;
1419        }
1420        switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1421        case VT1636_LVDS:
1422                for (i = 0; i < 2; i++) {
1423                        value = strsep(&pbuf, " ");
1424                        if (value != NULL) {
1425                                if (kstrtou8(value, 0, &reg_val.Data) < 0)
1426                                        return -EINVAL;
1427                                switch (i) {
1428                                case 0:
1429                                        reg_val.Index = 0x08;
1430                                        reg_val.Mask = 0x0f;
1431                                        viafb_gpio_i2c_write_mask_lvds
1432                                            (viaparinfo->lvds_setting_info2,
1433                                            &viaparinfo->
1434                                            chip_info->lvds_chip_info2,
1435                                             reg_val);
1436                                        break;
1437                                case 1:
1438                                        reg_val.Index = 0x09;
1439                                        reg_val.Mask = 0x1f;
1440                                        viafb_gpio_i2c_write_mask_lvds
1441                                            (viaparinfo->lvds_setting_info2,
1442                                            &viaparinfo->
1443                                            chip_info->lvds_chip_info2,
1444                                             reg_val);
1445                                        break;
1446                                default:
1447                                        break;
1448                                }
1449                        } else {
1450                                break;
1451                        }
1452                }
1453                break;
1454        default:
1455                break;
1456        }
1457        return count;
1458}
1459
1460static const struct file_operations viafb_vt1636_proc_fops = {
1461        .owner          = THIS_MODULE,
1462        .open           = viafb_vt1636_proc_open,
1463        .read           = seq_read,
1464        .llseek         = seq_lseek,
1465        .release        = single_release,
1466        .write          = viafb_vt1636_proc_write,
1467};
1468
1469#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1470
1471static int viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1472{
1473        via_odev_to_seq(m, supported_odev_map[
1474                viaparinfo->shared->chip_info.gfx_chip_name]);
1475        return 0;
1476}
1477
1478static int viafb_sup_odev_proc_open(struct inode *inode, struct file *file)
1479{
1480        return single_open(file, viafb_sup_odev_proc_show, NULL);
1481}
1482
1483static const struct file_operations viafb_sup_odev_proc_fops = {
1484        .owner          = THIS_MODULE,
1485        .open           = viafb_sup_odev_proc_open,
1486        .read           = seq_read,
1487        .llseek         = seq_lseek,
1488        .release        = single_release,
1489};
1490
1491static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1492{
1493        char buf[64], *ptr = buf;
1494        u32 devices;
1495        bool add, sub;
1496
1497        if (count < 1 || count > 63)
1498                return -EINVAL;
1499        if (copy_from_user(&buf[0], buffer, count))
1500                return -EFAULT;
1501        buf[count] = '\0';
1502        add = buf[0] == '+';
1503        sub = buf[0] == '-';
1504        if (add || sub)
1505                ptr++;
1506        devices = via_parse_odev(ptr, &ptr);
1507        if (*ptr == '\n')
1508                ptr++;
1509        if (*ptr != 0)
1510                return -EINVAL;
1511        if (add)
1512                *odev |= devices;
1513        else if (sub)
1514                *odev &= ~devices;
1515        else
1516                *odev = devices;
1517        return count;
1518}
1519
1520static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1521{
1522        via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1523        return 0;
1524}
1525
1526static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1527{
1528        return single_open(file, viafb_iga1_odev_proc_show, NULL);
1529}
1530
1531static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1532        const char __user *buffer, size_t count, loff_t *pos)
1533{
1534        u32 dev_on, dev_off, dev_old, dev_new;
1535        ssize_t res;
1536
1537        dev_old = dev_new = viaparinfo->shared->iga1_devices;
1538        res = odev_update(buffer, count, &dev_new);
1539        if (res != count)
1540                return res;
1541        dev_off = dev_old & ~dev_new;
1542        dev_on = dev_new & ~dev_old;
1543        viaparinfo->shared->iga1_devices = dev_new;
1544        viaparinfo->shared->iga2_devices &= ~dev_new;
1545        via_set_state(dev_off, VIA_STATE_OFF);
1546        via_set_source(dev_new, IGA1);
1547        via_set_state(dev_on, VIA_STATE_ON);
1548        return res;
1549}
1550
1551static const struct file_operations viafb_iga1_odev_proc_fops = {
1552        .owner          = THIS_MODULE,
1553        .open           = viafb_iga1_odev_proc_open,
1554        .read           = seq_read,
1555        .llseek         = seq_lseek,
1556        .release        = single_release,
1557        .write          = viafb_iga1_odev_proc_write,
1558};
1559
1560static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1561{
1562        via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1563        return 0;
1564}
1565
1566static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1567{
1568        return single_open(file, viafb_iga2_odev_proc_show, NULL);
1569}
1570
1571static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1572        const char __user *buffer, size_t count, loff_t *pos)
1573{
1574        u32 dev_on, dev_off, dev_old, dev_new;
1575        ssize_t res;
1576
1577        dev_old = dev_new = viaparinfo->shared->iga2_devices;
1578        res = odev_update(buffer, count, &dev_new);
1579        if (res != count)
1580                return res;
1581        dev_off = dev_old & ~dev_new;
1582        dev_on = dev_new & ~dev_old;
1583        viaparinfo->shared->iga2_devices = dev_new;
1584        viaparinfo->shared->iga1_devices &= ~dev_new;
1585        via_set_state(dev_off, VIA_STATE_OFF);
1586        via_set_source(dev_new, IGA2);
1587        via_set_state(dev_on, VIA_STATE_ON);
1588        return res;
1589}
1590
1591static const struct file_operations viafb_iga2_odev_proc_fops = {
1592        .owner          = THIS_MODULE,
1593        .open           = viafb_iga2_odev_proc_open,
1594        .read           = seq_read,
1595        .llseek         = seq_lseek,
1596        .release        = single_release,
1597        .write          = viafb_iga2_odev_proc_write,
1598};
1599
1600#define IS_VT1636(lvds_chip)    ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1601static void viafb_init_proc(struct viafb_shared *shared)
1602{
1603        struct proc_dir_entry *iga1_entry, *iga2_entry,
1604                *viafb_entry = proc_mkdir("viafb", NULL);
1605
1606        shared->proc_entry = viafb_entry;
1607        if (viafb_entry) {
1608#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1609                proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1610                proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1611                proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1612                proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1613                if (IS_VT1636(shared->chip_info.lvds_chip_info)
1614                        || IS_VT1636(shared->chip_info.lvds_chip_info2))
1615                        proc_create("vt1636", 0, viafb_entry,
1616                                &viafb_vt1636_proc_fops);
1617#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1618
1619                proc_create("supported_output_devices", 0, viafb_entry,
1620                        &viafb_sup_odev_proc_fops);
1621                iga1_entry = proc_mkdir("iga1", viafb_entry);
1622                shared->iga1_proc_entry = iga1_entry;
1623                proc_create("output_devices", 0, iga1_entry,
1624                        &viafb_iga1_odev_proc_fops);
1625                iga2_entry = proc_mkdir("iga2", viafb_entry);
1626                shared->iga2_proc_entry = iga2_entry;
1627                proc_create("output_devices", 0, iga2_entry,
1628                        &viafb_iga2_odev_proc_fops);
1629        }
1630}
1631static void viafb_remove_proc(struct viafb_shared *shared)
1632{
1633        struct proc_dir_entry *viafb_entry = shared->proc_entry,
1634                *iga1_entry = shared->iga1_proc_entry,
1635                *iga2_entry = shared->iga2_proc_entry;
1636
1637        if (!viafb_entry)
1638                return;
1639
1640        remove_proc_entry("output_devices", iga2_entry);
1641        remove_proc_entry("iga2", viafb_entry);
1642        remove_proc_entry("output_devices", iga1_entry);
1643        remove_proc_entry("iga1", viafb_entry);
1644        remove_proc_entry("supported_output_devices", viafb_entry);
1645
1646#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1647        remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1648        remove_proc_entry("dvp1", viafb_entry);
1649        remove_proc_entry("dfph", viafb_entry);
1650        remove_proc_entry("dfpl", viafb_entry);
1651        if (IS_VT1636(shared->chip_info.lvds_chip_info)
1652                || IS_VT1636(shared->chip_info.lvds_chip_info2))
1653                remove_proc_entry("vt1636", viafb_entry);
1654#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1655
1656        remove_proc_entry("viafb", NULL);
1657}
1658#undef IS_VT1636
1659
1660static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1661{
1662        const struct fb_videomode *mode = NULL;
1663        char *ptr;
1664
1665        if (!str) {
1666                if (devices == VIA_CRT)
1667                        mode = via_aux_get_preferred_mode(
1668                                viaparinfo->shared->i2c_26);
1669                else if (devices == VIA_DVP1)
1670                        mode = via_aux_get_preferred_mode(
1671                                viaparinfo->shared->i2c_31);
1672
1673                if (mode) {
1674                        *xres = mode->xres;
1675                        *yres = mode->yres;
1676                } else if (machine_is_olpc()) {
1677                        *xres = 1200;
1678                        *yres = 900;
1679                } else {
1680                        *xres = 640;
1681                        *yres = 480;
1682                }
1683                return 0;
1684        }
1685
1686        *xres = simple_strtoul(str, &ptr, 10);
1687        if (ptr[0] != 'x')
1688                return -EINVAL;
1689
1690        *yres = simple_strtoul(&ptr[1], &ptr, 10);
1691        if (ptr[0])
1692                return -EINVAL;
1693
1694        return 0;
1695}
1696
1697
1698#ifdef CONFIG_PM
1699static int viafb_suspend(void *unused)
1700{
1701        console_lock();
1702        fb_set_suspend(viafbinfo, 1);
1703        viafb_sync(viafbinfo);
1704        console_unlock();
1705
1706        return 0;
1707}
1708
1709static int viafb_resume(void *unused)
1710{
1711        console_lock();
1712        if (viaparinfo->shared->vdev->engine_mmio)
1713                viafb_reset_engine(viaparinfo);
1714        viafb_set_par(viafbinfo);
1715        if (viafb_dual_fb)
1716                viafb_set_par(viafbinfo1);
1717        fb_set_suspend(viafbinfo, 0);
1718
1719        console_unlock();
1720        return 0;
1721}
1722
1723static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1724        .suspend = viafb_suspend,
1725        .resume = viafb_resume
1726};
1727
1728#endif
1729
1730static void i2c_bus_probe(struct viafb_shared *shared)
1731{
1732        /* should be always CRT */
1733        printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1734        shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1735
1736        /* seems to be usually DVP1 */
1737        printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1738        shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1739
1740        /* FIXME: what is this? */
1741        if (!machine_is_olpc()) {
1742                printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1743                shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1744        }
1745
1746        printk(KERN_INFO "viafb: Finished I2C bus probing");
1747}
1748
1749static void i2c_bus_free(struct viafb_shared *shared)
1750{
1751        via_aux_free(shared->i2c_26);
1752        via_aux_free(shared->i2c_31);
1753        via_aux_free(shared->i2c_2C);
1754}
1755
1756int via_fb_pci_probe(struct viafb_dev *vdev)
1757{
1758        u32 default_xres, default_yres;
1759        struct fb_var_screeninfo default_var;
1760        int rc;
1761        u32 viafb_par_length;
1762
1763        DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1764        memset(&default_var, 0, sizeof(default_var));
1765        viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1766
1767        /* Allocate fb_info and ***_par here, also including some other needed
1768         * variables
1769        */
1770        viafbinfo = framebuffer_alloc(viafb_par_length +
1771                ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1772                &vdev->pdev->dev);
1773        if (!viafbinfo) {
1774                printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1775                return -ENOMEM;
1776        }
1777
1778        viaparinfo = (struct viafb_par *)viafbinfo->par;
1779        viaparinfo->shared = viafbinfo->par + viafb_par_length;
1780        viaparinfo->shared->vdev = vdev;
1781        viaparinfo->vram_addr = 0;
1782        viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1783        viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1784        viaparinfo->lvds_setting_info2 =
1785                &viaparinfo->shared->lvds_setting_info2;
1786        viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1787
1788        i2c_bus_probe(viaparinfo->shared);
1789        if (viafb_dual_fb)
1790                viafb_SAMM_ON = 1;
1791        parse_lcd_port();
1792        parse_dvi_port();
1793
1794        viafb_init_chip_info(vdev->chip_type);
1795        /*
1796         * The framebuffer will have been successfully mapped by
1797         * the core (or we'd not be here), but we still need to
1798         * set up our own accounting.
1799         */
1800        viaparinfo->fbmem = vdev->fbmem_start;
1801        viaparinfo->memsize = vdev->fbmem_len;
1802        viaparinfo->fbmem_free = viaparinfo->memsize;
1803        viaparinfo->fbmem_used = 0;
1804        viafbinfo->screen_base = vdev->fbmem;
1805
1806        viafbinfo->fix.mmio_start = vdev->engine_start;
1807        viafbinfo->fix.mmio_len = vdev->engine_len;
1808        viafbinfo->node = 0;
1809        viafbinfo->fbops = &viafb_ops;
1810        viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1811
1812        viafbinfo->pseudo_palette = pseudo_pal;
1813        if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1814                viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1815                        FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1816                default_var.accel_flags = FB_ACCELF_TEXT;
1817        } else {
1818                viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1819                default_var.accel_flags = 0;
1820        }
1821
1822        if (viafb_second_size && (viafb_second_size < 8)) {
1823                viafb_second_offset = viaparinfo->fbmem_free -
1824                        viafb_second_size * 1024 * 1024;
1825        } else {
1826                viafb_second_size = 8;
1827                viafb_second_offset = viaparinfo->fbmem_free -
1828                        viafb_second_size * 1024 * 1024;
1829        }
1830
1831        parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1832                &default_xres, &default_yres);
1833        if (viafb_SAMM_ON == 1)
1834                parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1835                        &viafb_second_xres, &viafb_second_yres);
1836
1837        default_var.xres = default_xres;
1838        default_var.yres = default_yres;
1839        default_var.xres_virtual = default_xres;
1840        default_var.yres_virtual = default_yres;
1841        default_var.bits_per_pixel = viafb_bpp;
1842        viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1843                default_var.xres, default_var.yres, viafb_refresh));
1844        viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1845        viafbinfo->var = default_var;
1846
1847        if (viafb_dual_fb) {
1848                viafbinfo1 = framebuffer_alloc(viafb_par_length,
1849                                &vdev->pdev->dev);
1850                if (!viafbinfo1) {
1851                        printk(KERN_ERR
1852                        "allocate the second framebuffer struct error\n");
1853                        rc = -ENOMEM;
1854                        goto out_fb_release;
1855                }
1856                viaparinfo1 = viafbinfo1->par;
1857                memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1858                viaparinfo1->vram_addr = viafb_second_offset;
1859                viaparinfo1->memsize = viaparinfo->memsize -
1860                        viafb_second_offset;
1861                viaparinfo->memsize = viafb_second_offset;
1862                viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1863
1864                viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1865                viaparinfo1->fbmem_free = viaparinfo1->memsize -
1866                        viaparinfo1->fbmem_used;
1867                viaparinfo->fbmem_free = viaparinfo->memsize;
1868                viaparinfo->fbmem_used = 0;
1869
1870                viaparinfo->iga_path = IGA1;
1871                viaparinfo1->iga_path = IGA2;
1872                memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1873                viafbinfo1->par = viaparinfo1;
1874                viafbinfo1->screen_base = viafbinfo->screen_base +
1875                        viafb_second_offset;
1876
1877                default_var.xres = viafb_second_xres;
1878                default_var.yres = viafb_second_yres;
1879                default_var.xres_virtual = viafb_second_xres;
1880                default_var.yres_virtual = viafb_second_yres;
1881                default_var.bits_per_pixel = viafb_bpp1;
1882                viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1883                        default_var.xres, default_var.yres, viafb_refresh1));
1884
1885                viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1886                viafb_check_var(&default_var, viafbinfo1);
1887                viafbinfo1->var = default_var;
1888                viafb_update_fix(viafbinfo1);
1889                viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1890                        &viafbinfo1->fix);
1891        }
1892
1893        viafb_check_var(&viafbinfo->var, viafbinfo);
1894        viafb_update_fix(viafbinfo);
1895        viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1896                &viafbinfo->fix);
1897        default_var.activate = FB_ACTIVATE_NOW;
1898        rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1899        if (rc)
1900                goto out_fb1_release;
1901
1902        if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1903            && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1904                rc = register_framebuffer(viafbinfo1);
1905                if (rc)
1906                        goto out_dealloc_cmap;
1907        }
1908        rc = register_framebuffer(viafbinfo);
1909        if (rc)
1910                goto out_fb1_unreg_lcd_cle266;
1911
1912        if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1913                        || (viaparinfo->chip_info->gfx_chip_name !=
1914                        UNICHROME_CLE266))) {
1915                rc = register_framebuffer(viafbinfo1);
1916                if (rc)
1917                        goto out_fb_unreg;
1918        }
1919        DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1920                  viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1921                  default_var.yres, default_var.bits_per_pixel);
1922
1923        viafb_init_proc(viaparinfo->shared);
1924        viafb_init_dac(IGA2);
1925
1926#ifdef CONFIG_PM
1927        viafb_pm_register(&viafb_fb_pm_hooks);
1928#endif
1929        return 0;
1930
1931out_fb_unreg:
1932        unregister_framebuffer(viafbinfo);
1933out_fb1_unreg_lcd_cle266:
1934        if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1935            && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1936                unregister_framebuffer(viafbinfo1);
1937out_dealloc_cmap:
1938        fb_dealloc_cmap(&viafbinfo->cmap);
1939out_fb1_release:
1940        framebuffer_release(viafbinfo1);
1941out_fb_release:
1942        i2c_bus_free(viaparinfo->shared);
1943        framebuffer_release(viafbinfo);
1944        return rc;
1945}
1946
1947void via_fb_pci_remove(struct pci_dev *pdev)
1948{
1949        DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1950        fb_dealloc_cmap(&viafbinfo->cmap);
1951        unregister_framebuffer(viafbinfo);
1952        if (viafb_dual_fb)
1953                unregister_framebuffer(viafbinfo1);
1954        viafb_remove_proc(viaparinfo->shared);
1955        i2c_bus_free(viaparinfo->shared);
1956        framebuffer_release(viafbinfo);
1957        if (viafb_dual_fb)
1958                framebuffer_release(viafbinfo1);
1959}
1960
1961#ifndef MODULE
1962static int __init viafb_setup(void)
1963{
1964        char *this_opt;
1965        char *options;
1966
1967        DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1968
1969        if (fb_get_options("viafb", &options))
1970                return -ENODEV;
1971
1972        if (!options || !*options)
1973                return 0;
1974
1975        while ((this_opt = strsep(&options, ",")) != NULL) {
1976                if (!*this_opt)
1977                        continue;
1978
1979                if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1980                        viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1981                } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1982                        viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1983                } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1984                        if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1985                                return -EINVAL;
1986                } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1987                        if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1988                                return -EINVAL;
1989                } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1990                        if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1991                                return -EINVAL;
1992                } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1993                        if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1994                                return -EINVAL;
1995                } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1996                        if (kstrtoint(this_opt + 21, 0,
1997                                      &viafb_lcd_dsp_method) < 0)
1998                                return -EINVAL;
1999                } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
2000                        if (kstrtoint(this_opt + 19, 0,
2001                                      &viafb_lcd_panel_id) < 0)
2002                                return -EINVAL;
2003                } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
2004                        if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
2005                                return -EINVAL;
2006                } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
2007                        if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
2008                                return -EINVAL;
2009                } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
2010                        viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
2011                } else if (!strncmp(this_opt,
2012                        "viafb_display_hardware_layout=", 30)) {
2013                        if (kstrtoint(this_opt + 30, 0,
2014                                      &viafb_display_hardware_layout) < 0)
2015                                return -EINVAL;
2016                } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
2017                        if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
2018                                return -EINVAL;
2019                } else if (!strncmp(this_opt,
2020                        "viafb_platform_epia_dvi=", 24)) {
2021                        if (kstrtoint(this_opt + 24, 0,
2022                                      &viafb_platform_epia_dvi) < 0)
2023                                return -EINVAL;
2024                } else if (!strncmp(this_opt,
2025                        "viafb_device_lcd_dualedge=", 26)) {
2026                        if (kstrtoint(this_opt + 26, 0,
2027                                      &viafb_device_lcd_dualedge) < 0)
2028                                return -EINVAL;
2029                } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
2030                        if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
2031                                return -EINVAL;
2032                } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2033                        if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2034                                return -EINVAL;
2035                } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2036                        viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2037                } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2038                        viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2039                }
2040        }
2041        return 0;
2042}
2043#endif
2044
2045/*
2046 * These are called out of via-core for now.
2047 */
2048int __init viafb_init(void)
2049{
2050        u32 dummy_x, dummy_y;
2051        int r = 0;
2052
2053        if (machine_is_olpc())
2054                /* Apply XO-1.5-specific configuration. */
2055                viafb_lcd_panel_id = 23;
2056
2057#ifndef MODULE
2058        r = viafb_setup();
2059        if (r < 0)
2060                return r;
2061#endif
2062        if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2063                || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2064                || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2065                || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2066                || viafb_bpp < 0 || viafb_bpp > 32
2067                || viafb_bpp1 < 0 || viafb_bpp1 > 32
2068                || parse_active_dev())
2069                return -EINVAL;
2070
2071        printk(KERN_INFO
2072       "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2073               VERSION_MAJOR, VERSION_MINOR);
2074        return r;
2075}
2076
2077void __exit viafb_exit(void)
2078{
2079        DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2080}
2081
2082static struct fb_ops viafb_ops = {
2083        .owner = THIS_MODULE,
2084        .fb_open = viafb_open,
2085        .fb_release = viafb_release,
2086        .fb_check_var = viafb_check_var,
2087        .fb_set_par = viafb_set_par,
2088        .fb_setcolreg = viafb_setcolreg,
2089        .fb_pan_display = viafb_pan_display,
2090        .fb_blank = viafb_blank,
2091        .fb_fillrect = viafb_fillrect,
2092        .fb_copyarea = viafb_copyarea,
2093        .fb_imageblit = viafb_imageblit,
2094        .fb_cursor = viafb_cursor,
2095        .fb_ioctl = viafb_ioctl,
2096        .fb_sync = viafb_sync,
2097};
2098
2099
2100#ifdef MODULE
2101module_param(viafb_mode, charp, S_IRUSR);
2102MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2103
2104module_param(viafb_mode1, charp, S_IRUSR);
2105MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2106
2107module_param(viafb_bpp, int, S_IRUSR);
2108MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2109
2110module_param(viafb_bpp1, int, S_IRUSR);
2111MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2112
2113module_param(viafb_refresh, int, S_IRUSR);
2114MODULE_PARM_DESC(viafb_refresh,
2115        "Set CRT viafb_refresh rate (default = 60)");
2116
2117module_param(viafb_refresh1, int, S_IRUSR);
2118MODULE_PARM_DESC(viafb_refresh1,
2119        "Set CRT refresh rate (default = 60)");
2120
2121module_param(viafb_lcd_panel_id, int, S_IRUSR);
2122MODULE_PARM_DESC(viafb_lcd_panel_id,
2123        "Set Flat Panel type(Default=1024x768)");
2124
2125module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2126MODULE_PARM_DESC(viafb_lcd_dsp_method,
2127        "Set Flat Panel display scaling method.(Default=Expandsion)");
2128
2129module_param(viafb_SAMM_ON, int, S_IRUSR);
2130MODULE_PARM_DESC(viafb_SAMM_ON,
2131        "Turn on/off flag of SAMM(Default=OFF)");
2132
2133module_param(viafb_accel, int, S_IRUSR);
2134MODULE_PARM_DESC(viafb_accel,
2135        "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2136
2137module_param(viafb_active_dev, charp, S_IRUSR);
2138MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2139
2140module_param(viafb_display_hardware_layout, int, S_IRUSR);
2141MODULE_PARM_DESC(viafb_display_hardware_layout,
2142        "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2143
2144module_param(viafb_second_size, int, S_IRUSR);
2145MODULE_PARM_DESC(viafb_second_size,
2146        "Set secondary device memory size");
2147
2148module_param(viafb_dual_fb, int, S_IRUSR);
2149MODULE_PARM_DESC(viafb_dual_fb,
2150        "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2151
2152module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2153MODULE_PARM_DESC(viafb_platform_epia_dvi,
2154        "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2155
2156module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2157MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2158        "Turn on/off flag of dual edge panel.(Default = OFF)");
2159
2160module_param(viafb_bus_width, int, S_IRUSR);
2161MODULE_PARM_DESC(viafb_bus_width,
2162        "Set bus width of panel.(Default = 12)");
2163
2164module_param(viafb_lcd_mode, int, S_IRUSR);
2165MODULE_PARM_DESC(viafb_lcd_mode,
2166        "Set Flat Panel mode(Default=OPENLDI)");
2167
2168module_param(viafb_lcd_port, charp, S_IRUSR);
2169MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2170
2171module_param(viafb_dvi_port, charp, S_IRUSR);
2172MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2173
2174MODULE_LICENSE("GPL");
2175#endif
2176