linux/drivers/video/fbdev/via/viafbdev.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
   4 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   5
   6 */
   7
   8#include <linux/compiler.h>
   9#include <linux/module.h>
  10#include <linux/seq_file.h>
  11#include <linux/slab.h>
  12#include <linux/stat.h>
  13#include <linux/via-core.h>
  14#include <linux/via_i2c.h>
  15
  16#define _MASTER_FILE
  17#include "global.h"
  18
  19static char *viafb_name = "Via";
  20static u32 pseudo_pal[17];
  21
  22/* video mode */
  23static char *viafb_mode;
  24static char *viafb_mode1;
  25static int viafb_bpp = 32;
  26static int viafb_bpp1 = 32;
  27
  28static unsigned int viafb_second_offset;
  29static int viafb_second_size;
  30
  31static int viafb_accel = 1;
  32
  33/* Added for specifying active devices.*/
  34static char *viafb_active_dev;
  35
  36/*Added for specify lcd output port*/
  37static char *viafb_lcd_port = "";
  38static char *viafb_dvi_port = "";
  39
  40static void retrieve_device_setting(struct viafb_ioctl_setting
  41        *setting_info);
  42static int viafb_pan_display(struct fb_var_screeninfo *var,
  43        struct fb_info *info);
  44
  45static struct fb_ops viafb_ops;
  46
  47/* supported output devices on each IGP
  48 * only CX700, VX800, VX855, VX900 were documented
  49 * VIA_CRT should be everywhere
  50 * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
  51 * source selection on CX700 and later
  52 * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
  53 */
  54static const u32 supported_odev_map[] = {
  55        [UNICHROME_CLE266]      = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
  56        [UNICHROME_K400]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  57                                | VIA_LVDS2,
  58        [UNICHROME_K800]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  59                                | VIA_LVDS2,
  60        [UNICHROME_PM800]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  61                                | VIA_LVDS2,
  62        [UNICHROME_CN700]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  63                                | VIA_LVDS2,
  64        [UNICHROME_CX700]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  65        [UNICHROME_CN750]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  66        [UNICHROME_K8M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  67        [UNICHROME_P4M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  68        [UNICHROME_P4M900]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  69        [UNICHROME_VX800]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  70        [UNICHROME_VX855]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  71        [UNICHROME_VX900]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  72};
  73
  74static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
  75{
  76        var->grayscale = 0;
  77        var->red.msb_right = 0;
  78        var->green.msb_right = 0;
  79        var->blue.msb_right = 0;
  80        var->transp.offset = 0;
  81        var->transp.length = 0;
  82        var->transp.msb_right = 0;
  83        var->nonstd = 0;
  84        switch (depth) {
  85        case 8:
  86                var->bits_per_pixel = 8;
  87                var->red.offset = 0;
  88                var->green.offset = 0;
  89                var->blue.offset = 0;
  90                var->red.length = 8;
  91                var->green.length = 8;
  92                var->blue.length = 8;
  93                break;
  94        case 15:
  95                var->bits_per_pixel = 16;
  96                var->red.offset = 10;
  97                var->green.offset = 5;
  98                var->blue.offset = 0;
  99                var->red.length = 5;
 100                var->green.length = 5;
 101                var->blue.length = 5;
 102                break;
 103        case 16:
 104                var->bits_per_pixel = 16;
 105                var->red.offset = 11;
 106                var->green.offset = 5;
 107                var->blue.offset = 0;
 108                var->red.length = 5;
 109                var->green.length = 6;
 110                var->blue.length = 5;
 111                break;
 112        case 24:
 113                var->bits_per_pixel = 32;
 114                var->red.offset = 16;
 115                var->green.offset = 8;
 116                var->blue.offset = 0;
 117                var->red.length = 8;
 118                var->green.length = 8;
 119                var->blue.length = 8;
 120                break;
 121        case 30:
 122                var->bits_per_pixel = 32;
 123                var->red.offset = 20;
 124                var->green.offset = 10;
 125                var->blue.offset = 0;
 126                var->red.length = 10;
 127                var->green.length = 10;
 128                var->blue.length = 10;
 129                break;
 130        }
 131}
 132
 133static void viafb_update_fix(struct fb_info *info)
 134{
 135        u32 bpp = info->var.bits_per_pixel;
 136
 137        info->fix.visual =
 138                bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 139        info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
 140                VIA_PITCH_SIZE);
 141}
 142
 143static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
 144        struct viafb_par *viaparinfo)
 145{
 146        memset(fix, 0, sizeof(struct fb_fix_screeninfo));
 147        strcpy(fix->id, viafb_name);
 148
 149        fix->smem_start = viaparinfo->fbmem;
 150        fix->smem_len = viaparinfo->fbmem_free;
 151
 152        fix->type = FB_TYPE_PACKED_PIXELS;
 153        fix->type_aux = 0;
 154        fix->visual = FB_VISUAL_TRUECOLOR;
 155
 156        fix->xpanstep = fix->ywrapstep = 0;
 157        fix->ypanstep = 1;
 158
 159        /* Just tell the accel name */
 160        viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
 161}
 162static int viafb_open(struct fb_info *info, int user)
 163{
 164        DEBUG_MSG(KERN_INFO "viafb_open!\n");
 165        return 0;
 166}
 167
 168static int viafb_release(struct fb_info *info, int user)
 169{
 170        DEBUG_MSG(KERN_INFO "viafb_release!\n");
 171        return 0;
 172}
 173
 174static inline int get_var_refresh(struct fb_var_screeninfo *var)
 175{
 176        u32 htotal, vtotal;
 177
 178        htotal = var->left_margin + var->xres + var->right_margin
 179                + var->hsync_len;
 180        vtotal = var->upper_margin + var->yres + var->lower_margin
 181                + var->vsync_len;
 182        return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
 183}
 184
 185static int viafb_check_var(struct fb_var_screeninfo *var,
 186        struct fb_info *info)
 187{
 188        int depth, refresh;
 189        struct viafb_par *ppar = info->par;
 190        u32 line;
 191
 192        DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
 193        /* Sanity check */
 194        /* HW neither support interlacte nor double-scaned mode */
 195        if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
 196                return -EINVAL;
 197
 198        /* the refresh rate is not important here, as we only want to know
 199         * whether the resolution exists
 200         */
 201        if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
 202                DEBUG_MSG(KERN_INFO
 203                          "viafb: Mode %dx%dx%d not supported!!\n",
 204                          var->xres, var->yres, var->bits_per_pixel);
 205                return -EINVAL;
 206        }
 207
 208        depth = fb_get_color_depth(var, &info->fix);
 209        if (!depth)
 210                depth = var->bits_per_pixel;
 211
 212        if (depth < 0 || depth > 32)
 213                return -EINVAL;
 214        else if (!depth)
 215                depth = 24;
 216        else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
 217                depth = 15;
 218        else if (depth == 30)
 219                depth = 30;
 220        else if (depth <= 8)
 221                depth = 8;
 222        else if (depth <= 16)
 223                depth = 16;
 224        else
 225                depth = 24;
 226
 227        viafb_fill_var_color_info(var, depth);
 228        if (var->xres_virtual < var->xres)
 229                var->xres_virtual = var->xres;
 230
 231        line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
 232                VIA_PITCH_SIZE);
 233        if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
 234                return -EINVAL;
 235
 236        /* Based on var passed in to calculate the refresh,
 237         * because our driver use some modes special.
 238         */
 239        refresh = viafb_get_refresh(var->xres, var->yres,
 240                get_var_refresh(var));
 241
 242        /* Adjust var according to our driver's own table */
 243        viafb_fill_var_timing_info(var,
 244                viafb_get_best_mode(var->xres, var->yres, refresh));
 245        if (var->accel_flags & FB_ACCELF_TEXT &&
 246                !ppar->shared->vdev->engine_mmio)
 247                var->accel_flags = 0;
 248
 249        return 0;
 250}
 251
 252static int viafb_set_par(struct fb_info *info)
 253{
 254        struct viafb_par *viapar = info->par;
 255        int refresh;
 256        DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
 257
 258        viafb_update_fix(info);
 259        viapar->depth = fb_get_color_depth(&info->var, &info->fix);
 260        viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
 261                viafbinfo->var.bits_per_pixel, 0);
 262
 263        if (viafb_dual_fb) {
 264                viafb_update_device_setting(viafbinfo1->var.xres,
 265                        viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
 266                        1);
 267        } else if (viafb_SAMM_ON == 1) {
 268                DEBUG_MSG(KERN_INFO
 269                "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
 270                          viafb_second_xres, viafb_second_yres, viafb_bpp1);
 271
 272                viafb_update_device_setting(viafb_second_xres,
 273                        viafb_second_yres, viafb_bpp1, 1);
 274        }
 275
 276        refresh = get_var_refresh(&info->var);
 277        if (viafb_dual_fb && viapar->iga_path == IGA2) {
 278                viafb_bpp1 = info->var.bits_per_pixel;
 279                viafb_refresh1 = refresh;
 280        } else {
 281                viafb_bpp = info->var.bits_per_pixel;
 282                viafb_refresh = refresh;
 283        }
 284
 285        if (info->var.accel_flags & FB_ACCELF_TEXT)
 286                info->flags &= ~FBINFO_HWACCEL_DISABLED;
 287        else
 288                info->flags |= FBINFO_HWACCEL_DISABLED;
 289        viafb_setmode();
 290        viafb_pan_display(&info->var, info);
 291
 292        return 0;
 293}
 294
 295/* Set one color register */
 296static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 297unsigned blue, unsigned transp, struct fb_info *info)
 298{
 299        struct viafb_par *viapar = info->par;
 300        u32 r, g, b;
 301
 302        if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
 303                if (regno > 255)
 304                        return -EINVAL;
 305
 306                if (!viafb_dual_fb || viapar->iga_path == IGA1)
 307                        viafb_set_primary_color_register(regno, red >> 8,
 308                                green >> 8, blue >> 8);
 309
 310                if (!viafb_dual_fb || viapar->iga_path == IGA2)
 311                        viafb_set_secondary_color_register(regno, red >> 8,
 312                                green >> 8, blue >> 8);
 313        } else {
 314                if (regno > 15)
 315                        return -EINVAL;
 316
 317                r = (red >> (16 - info->var.red.length))
 318                        << info->var.red.offset;
 319                b = (blue >> (16 - info->var.blue.length))
 320                        << info->var.blue.offset;
 321                g = (green >> (16 - info->var.green.length))
 322                        << info->var.green.offset;
 323                ((u32 *) info->pseudo_palette)[regno] = r | g | b;
 324        }
 325
 326        return 0;
 327}
 328
 329static int viafb_pan_display(struct fb_var_screeninfo *var,
 330        struct fb_info *info)
 331{
 332        struct viafb_par *viapar = info->par;
 333        u32 vram_addr = viapar->vram_addr
 334                + var->yoffset * info->fix.line_length
 335                + var->xoffset * info->var.bits_per_pixel / 8;
 336
 337        DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
 338        if (!viafb_dual_fb) {
 339                via_set_primary_address(vram_addr);
 340                via_set_secondary_address(vram_addr);
 341        } else if (viapar->iga_path == IGA1)
 342                via_set_primary_address(vram_addr);
 343        else
 344                via_set_secondary_address(vram_addr);
 345
 346        return 0;
 347}
 348
 349static int viafb_blank(int blank_mode, struct fb_info *info)
 350{
 351        DEBUG_MSG(KERN_INFO "viafb_blank!\n");
 352        /* clear DPMS setting */
 353
 354        switch (blank_mode) {
 355        case FB_BLANK_UNBLANK:
 356                /* Screen: On, HSync: On, VSync: On */
 357                /* control CRT monitor power management */
 358                via_set_state(VIA_CRT, VIA_STATE_ON);
 359                break;
 360        case FB_BLANK_HSYNC_SUSPEND:
 361                /* Screen: Off, HSync: Off, VSync: On */
 362                /* control CRT monitor power management */
 363                via_set_state(VIA_CRT, VIA_STATE_STANDBY);
 364                break;
 365        case FB_BLANK_VSYNC_SUSPEND:
 366                /* Screen: Off, HSync: On, VSync: Off */
 367                /* control CRT monitor power management */
 368                via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
 369                break;
 370        case FB_BLANK_POWERDOWN:
 371                /* Screen: Off, HSync: Off, VSync: Off */
 372                /* control CRT monitor power management */
 373                via_set_state(VIA_CRT, VIA_STATE_OFF);
 374                break;
 375        }
 376
 377        return 0;
 378}
 379
 380static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 381{
 382        union {
 383                struct viafb_ioctl_mode viamode;
 384                struct viafb_ioctl_samm viasamm;
 385                struct viafb_driver_version driver_version;
 386                struct fb_var_screeninfo sec_var;
 387                struct _panel_size_pos_info panel_pos_size_para;
 388                struct viafb_ioctl_setting viafb_setting;
 389                struct device_t active_dev;
 390        } u;
 391        u32 state_info = 0;
 392        u32 *viafb_gamma_table;
 393        char driver_name[] = "viafb";
 394
 395        u32 __user *argp = (u32 __user *) arg;
 396        u32 gpu32;
 397
 398        DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
 399        printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
 400        memset(&u, 0, sizeof(u));
 401
 402        switch (cmd) {
 403        case VIAFB_GET_CHIP_INFO:
 404                if (copy_to_user(argp, viaparinfo->chip_info,
 405                                sizeof(struct chip_information)))
 406                        return -EFAULT;
 407                break;
 408        case VIAFB_GET_INFO_SIZE:
 409                return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
 410        case VIAFB_GET_INFO:
 411                return viafb_ioctl_get_viafb_info(arg);
 412        case VIAFB_HOTPLUG:
 413                return put_user(viafb_ioctl_hotplug(info->var.xres,
 414                                              info->var.yres,
 415                                              info->var.bits_per_pixel), argp);
 416        case VIAFB_SET_HOTPLUG_FLAG:
 417                if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 418                        return -EFAULT;
 419                viafb_hotplug = (gpu32) ? 1 : 0;
 420                break;
 421        case VIAFB_GET_RESOLUTION:
 422                u.viamode.xres = (u32) viafb_hotplug_Xres;
 423                u.viamode.yres = (u32) viafb_hotplug_Yres;
 424                u.viamode.refresh = (u32) viafb_hotplug_refresh;
 425                u.viamode.bpp = (u32) viafb_hotplug_bpp;
 426                if (viafb_SAMM_ON == 1) {
 427                        u.viamode.xres_sec = viafb_second_xres;
 428                        u.viamode.yres_sec = viafb_second_yres;
 429                        u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
 430                        u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
 431                        u.viamode.refresh_sec = viafb_refresh1;
 432                        u.viamode.bpp_sec = viafb_bpp1;
 433                } else {
 434                        u.viamode.xres_sec = 0;
 435                        u.viamode.yres_sec = 0;
 436                        u.viamode.virtual_xres_sec = 0;
 437                        u.viamode.virtual_yres_sec = 0;
 438                        u.viamode.refresh_sec = 0;
 439                        u.viamode.bpp_sec = 0;
 440                }
 441                if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
 442                        return -EFAULT;
 443                break;
 444        case VIAFB_GET_SAMM_INFO:
 445                u.viasamm.samm_status = viafb_SAMM_ON;
 446
 447                if (viafb_SAMM_ON == 1) {
 448                        if (viafb_dual_fb) {
 449                                u.viasamm.size_prim = viaparinfo->fbmem_free;
 450                                u.viasamm.size_sec = viaparinfo1->fbmem_free;
 451                        } else {
 452                                if (viafb_second_size) {
 453                                        u.viasamm.size_prim =
 454                                            viaparinfo->fbmem_free -
 455                                            viafb_second_size * 1024 * 1024;
 456                                        u.viasamm.size_sec =
 457                                            viafb_second_size * 1024 * 1024;
 458                                } else {
 459                                        u.viasamm.size_prim =
 460                                            viaparinfo->fbmem_free >> 1;
 461                                        u.viasamm.size_sec =
 462                                            (viaparinfo->fbmem_free >> 1);
 463                                }
 464                        }
 465                        u.viasamm.mem_base = viaparinfo->fbmem;
 466                        u.viasamm.offset_sec = viafb_second_offset;
 467                } else {
 468                        u.viasamm.size_prim =
 469                            viaparinfo->memsize - viaparinfo->fbmem_used;
 470                        u.viasamm.size_sec = 0;
 471                        u.viasamm.mem_base = viaparinfo->fbmem;
 472                        u.viasamm.offset_sec = 0;
 473                }
 474
 475                if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
 476                        return -EFAULT;
 477
 478                break;
 479        case VIAFB_TURN_ON_OUTPUT_DEVICE:
 480                if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 481                        return -EFAULT;
 482                if (gpu32 & CRT_Device)
 483                        via_set_state(VIA_CRT, VIA_STATE_ON);
 484                if (gpu32 & DVI_Device)
 485                        viafb_dvi_enable();
 486                if (gpu32 & LCD_Device)
 487                        viafb_lcd_enable();
 488                break;
 489        case VIAFB_TURN_OFF_OUTPUT_DEVICE:
 490                if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 491                        return -EFAULT;
 492                if (gpu32 & CRT_Device)
 493                        via_set_state(VIA_CRT, VIA_STATE_OFF);
 494                if (gpu32 & DVI_Device)
 495                        viafb_dvi_disable();
 496                if (gpu32 & LCD_Device)
 497                        viafb_lcd_disable();
 498                break;
 499        case VIAFB_GET_DEVICE:
 500                u.active_dev.crt = viafb_CRT_ON;
 501                u.active_dev.dvi = viafb_DVI_ON;
 502                u.active_dev.lcd = viafb_LCD_ON;
 503                u.active_dev.samm = viafb_SAMM_ON;
 504                u.active_dev.primary_dev = viafb_primary_dev;
 505
 506                u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
 507                u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
 508                u.active_dev.lcd_mode = viafb_lcd_mode;
 509
 510                u.active_dev.xres = viafb_hotplug_Xres;
 511                u.active_dev.yres = viafb_hotplug_Yres;
 512
 513                u.active_dev.xres1 = viafb_second_xres;
 514                u.active_dev.yres1 = viafb_second_yres;
 515
 516                u.active_dev.bpp = viafb_bpp;
 517                u.active_dev.bpp1 = viafb_bpp1;
 518                u.active_dev.refresh = viafb_refresh;
 519                u.active_dev.refresh1 = viafb_refresh1;
 520
 521                u.active_dev.epia_dvi = viafb_platform_epia_dvi;
 522                u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
 523                u.active_dev.bus_width = viafb_bus_width;
 524
 525                if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
 526                        return -EFAULT;
 527                break;
 528
 529        case VIAFB_GET_DRIVER_VERSION:
 530                u.driver_version.iMajorNum = VERSION_MAJOR;
 531                u.driver_version.iKernelNum = VERSION_KERNEL;
 532                u.driver_version.iOSNum = VERSION_OS;
 533                u.driver_version.iMinorNum = VERSION_MINOR;
 534
 535                if (copy_to_user(argp, &u.driver_version,
 536                        sizeof(u.driver_version)))
 537                        return -EFAULT;
 538
 539                break;
 540
 541        case VIAFB_GET_DEVICE_INFO:
 542
 543                retrieve_device_setting(&u.viafb_setting);
 544
 545                if (copy_to_user(argp, &u.viafb_setting,
 546                                 sizeof(u.viafb_setting)))
 547                        return -EFAULT;
 548
 549                break;
 550
 551        case VIAFB_GET_DEVICE_SUPPORT:
 552                viafb_get_device_support_state(&state_info);
 553                if (put_user(state_info, argp))
 554                        return -EFAULT;
 555                break;
 556
 557        case VIAFB_GET_DEVICE_CONNECT:
 558                viafb_get_device_connect_state(&state_info);
 559                if (put_user(state_info, argp))
 560                        return -EFAULT;
 561                break;
 562
 563        case VIAFB_GET_PANEL_SUPPORT_EXPAND:
 564                state_info =
 565                    viafb_lcd_get_support_expand_state(info->var.xres,
 566                                                 info->var.yres);
 567                if (put_user(state_info, argp))
 568                        return -EFAULT;
 569                break;
 570
 571        case VIAFB_GET_DRIVER_NAME:
 572                if (copy_to_user(argp, driver_name, sizeof(driver_name)))
 573                        return -EFAULT;
 574                break;
 575
 576        case VIAFB_SET_GAMMA_LUT:
 577                viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
 578                if (IS_ERR(viafb_gamma_table))
 579                        return PTR_ERR(viafb_gamma_table);
 580                viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
 581                kfree(viafb_gamma_table);
 582                break;
 583
 584        case VIAFB_GET_GAMMA_LUT:
 585                viafb_gamma_table = kmalloc_array(256, sizeof(u32),
 586                                                  GFP_KERNEL);
 587                if (!viafb_gamma_table)
 588                        return -ENOMEM;
 589                viafb_get_gamma_table(viafb_gamma_table);
 590                if (copy_to_user(argp, viafb_gamma_table,
 591                        256 * sizeof(u32))) {
 592                        kfree(viafb_gamma_table);
 593                        return -EFAULT;
 594                }
 595                kfree(viafb_gamma_table);
 596                break;
 597
 598        case VIAFB_GET_GAMMA_SUPPORT_STATE:
 599                viafb_get_gamma_support_state(viafb_bpp, &state_info);
 600                if (put_user(state_info, argp))
 601                        return -EFAULT;
 602                break;
 603        case VIAFB_SYNC_SURFACE:
 604                DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
 605                break;
 606        case VIAFB_GET_DRIVER_CAPS:
 607                break;
 608
 609        case VIAFB_GET_PANEL_MAX_SIZE:
 610                if (copy_from_user(&u.panel_pos_size_para, argp,
 611                                   sizeof(u.panel_pos_size_para)))
 612                        return -EFAULT;
 613                u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 614                if (copy_to_user(argp, &u.panel_pos_size_para,
 615                     sizeof(u.panel_pos_size_para)))
 616                        return -EFAULT;
 617                break;
 618        case VIAFB_GET_PANEL_MAX_POSITION:
 619                if (copy_from_user(&u.panel_pos_size_para, argp,
 620                                   sizeof(u.panel_pos_size_para)))
 621                        return -EFAULT;
 622                u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 623                if (copy_to_user(argp, &u.panel_pos_size_para,
 624                                 sizeof(u.panel_pos_size_para)))
 625                        return -EFAULT;
 626                break;
 627
 628        case VIAFB_GET_PANEL_POSITION:
 629                if (copy_from_user(&u.panel_pos_size_para, argp,
 630                                   sizeof(u.panel_pos_size_para)))
 631                        return -EFAULT;
 632                u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 633                if (copy_to_user(argp, &u.panel_pos_size_para,
 634                                 sizeof(u.panel_pos_size_para)))
 635                        return -EFAULT;
 636                break;
 637        case VIAFB_GET_PANEL_SIZE:
 638                if (copy_from_user(&u.panel_pos_size_para, argp,
 639                                   sizeof(u.panel_pos_size_para)))
 640                        return -EFAULT;
 641                u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 642                if (copy_to_user(argp, &u.panel_pos_size_para,
 643                                 sizeof(u.panel_pos_size_para)))
 644                        return -EFAULT;
 645                break;
 646
 647        case VIAFB_SET_PANEL_POSITION:
 648                if (copy_from_user(&u.panel_pos_size_para, argp,
 649                                   sizeof(u.panel_pos_size_para)))
 650                        return -EFAULT;
 651                break;
 652        case VIAFB_SET_PANEL_SIZE:
 653                if (copy_from_user(&u.panel_pos_size_para, argp,
 654                                   sizeof(u.panel_pos_size_para)))
 655                        return -EFAULT;
 656                break;
 657
 658        default:
 659                return -EINVAL;
 660        }
 661
 662        return 0;
 663}
 664
 665static void viafb_fillrect(struct fb_info *info,
 666        const struct fb_fillrect *rect)
 667{
 668        struct viafb_par *viapar = info->par;
 669        struct viafb_shared *shared = viapar->shared;
 670        u32 fg_color;
 671        u8 rop;
 672
 673        if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 674                cfb_fillrect(info, rect);
 675                return;
 676        }
 677
 678        if (!rect->width || !rect->height)
 679                return;
 680
 681        if (info->fix.visual == FB_VISUAL_TRUECOLOR)
 682                fg_color = ((u32 *)info->pseudo_palette)[rect->color];
 683        else
 684                fg_color = rect->color;
 685
 686        if (rect->rop == ROP_XOR)
 687                rop = 0x5A;
 688        else
 689                rop = 0xF0;
 690
 691        DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
 692        if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
 693                rect->width, rect->height, info->var.bits_per_pixel,
 694                viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
 695                NULL, 0, 0, 0, 0, fg_color, 0, rop))
 696                cfb_fillrect(info, rect);
 697}
 698
 699static void viafb_copyarea(struct fb_info *info,
 700        const struct fb_copyarea *area)
 701{
 702        struct viafb_par *viapar = info->par;
 703        struct viafb_shared *shared = viapar->shared;
 704
 705        if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 706                cfb_copyarea(info, area);
 707                return;
 708        }
 709
 710        if (!area->width || !area->height)
 711                return;
 712
 713        DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
 714        if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
 715                area->width, area->height, info->var.bits_per_pixel,
 716                viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
 717                NULL, viapar->vram_addr, info->fix.line_length,
 718                area->sx, area->sy, 0, 0, 0))
 719                cfb_copyarea(info, area);
 720}
 721
 722static void viafb_imageblit(struct fb_info *info,
 723        const struct fb_image *image)
 724{
 725        struct viafb_par *viapar = info->par;
 726        struct viafb_shared *shared = viapar->shared;
 727        u32 fg_color = 0, bg_color = 0;
 728        u8 op;
 729
 730        if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
 731                (image->depth != 1 && image->depth != viapar->depth)) {
 732                cfb_imageblit(info, image);
 733                return;
 734        }
 735
 736        if (image->depth == 1) {
 737                op = VIA_BITBLT_MONO;
 738                if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
 739                        fg_color =
 740                                ((u32 *)info->pseudo_palette)[image->fg_color];
 741                        bg_color =
 742                                ((u32 *)info->pseudo_palette)[image->bg_color];
 743                } else {
 744                        fg_color = image->fg_color;
 745                        bg_color = image->bg_color;
 746                }
 747        } else
 748                op = VIA_BITBLT_COLOR;
 749
 750        DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
 751        if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
 752                image->width, image->height, info->var.bits_per_pixel,
 753                viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
 754                (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
 755                cfb_imageblit(info, image);
 756}
 757
 758static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 759{
 760        struct viafb_par *viapar = info->par;
 761        void __iomem *engine = viapar->shared->vdev->engine_mmio;
 762        u32 temp, xx, yy, bg_color = 0, fg_color = 0,
 763                chip_name = viapar->shared->chip_info.gfx_chip_name;
 764        int i, j = 0, cur_size = 64;
 765
 766        if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
 767                return -ENODEV;
 768
 769        /* LCD ouput does not support hw cursors (at least on VN896) */
 770        if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
 771                viafb_LCD_ON)
 772                return -ENODEV;
 773
 774        viafb_show_hw_cursor(info, HW_Cursor_OFF);
 775
 776        if (cursor->set & FB_CUR_SETHOT) {
 777                temp = (cursor->hot.x << 16) + cursor->hot.y;
 778                writel(temp, engine + VIA_REG_CURSOR_ORG);
 779        }
 780
 781        if (cursor->set & FB_CUR_SETPOS) {
 782                yy = cursor->image.dy - info->var.yoffset;
 783                xx = cursor->image.dx - info->var.xoffset;
 784                temp = yy & 0xFFFF;
 785                temp |= (xx << 16);
 786                writel(temp, engine + VIA_REG_CURSOR_POS);
 787        }
 788
 789        if (cursor->image.width <= 32 && cursor->image.height <= 32)
 790                cur_size = 32;
 791        else if (cursor->image.width <= 64 && cursor->image.height <= 64)
 792                cur_size = 64;
 793        else {
 794                printk(KERN_WARNING "viafb_cursor: The cursor is too large "
 795                        "%dx%d", cursor->image.width, cursor->image.height);
 796                return -ENXIO;
 797        }
 798
 799        if (cursor->set & FB_CUR_SETSIZE) {
 800                temp = readl(engine + VIA_REG_CURSOR_MODE);
 801                if (cur_size == 32)
 802                        temp |= 0x2;
 803                else
 804                        temp &= ~0x2;
 805
 806                writel(temp, engine + VIA_REG_CURSOR_MODE);
 807        }
 808
 809        if (cursor->set & FB_CUR_SETCMAP) {
 810                fg_color = cursor->image.fg_color;
 811                bg_color = cursor->image.bg_color;
 812                if (chip_name == UNICHROME_CX700 ||
 813                        chip_name == UNICHROME_VX800 ||
 814                        chip_name == UNICHROME_VX855 ||
 815                        chip_name == UNICHROME_VX900) {
 816                        fg_color =
 817                                ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
 818                                ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
 819                                ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
 820                        bg_color =
 821                                ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
 822                                ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
 823                                ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
 824                } else {
 825                        fg_color =
 826                                ((info->cmap.red[fg_color] & 0xFF00) << 8) |
 827                                (info->cmap.green[fg_color] & 0xFF00) |
 828                                ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
 829                        bg_color =
 830                                ((info->cmap.red[bg_color] & 0xFF00) << 8) |
 831                                (info->cmap.green[bg_color] & 0xFF00) |
 832                                ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
 833                }
 834
 835                writel(bg_color, engine + VIA_REG_CURSOR_BG);
 836                writel(fg_color, engine + VIA_REG_CURSOR_FG);
 837        }
 838
 839        if (cursor->set & FB_CUR_SETSHAPE) {
 840                struct {
 841                        u8 data[CURSOR_SIZE];
 842                        u32 bak[CURSOR_SIZE / 4];
 843                } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
 844                int size = ((cursor->image.width + 7) >> 3) *
 845                        cursor->image.height;
 846
 847                if (!cr_data)
 848                        return -ENOMEM;
 849
 850                if (cur_size == 32) {
 851                        for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 852                                cr_data->bak[i] = 0x0;
 853                                cr_data->bak[i + 1] = 0xFFFFFFFF;
 854                                i += 1;
 855                        }
 856                } else {
 857                        for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 858                                cr_data->bak[i] = 0x0;
 859                                cr_data->bak[i + 1] = 0x0;
 860                                cr_data->bak[i + 2] = 0xFFFFFFFF;
 861                                cr_data->bak[i + 3] = 0xFFFFFFFF;
 862                                i += 3;
 863                        }
 864                }
 865
 866                switch (cursor->rop) {
 867                case ROP_XOR:
 868                        for (i = 0; i < size; i++)
 869                                cr_data->data[i] = cursor->mask[i];
 870                        break;
 871                case ROP_COPY:
 872
 873                        for (i = 0; i < size; i++)
 874                                cr_data->data[i] = cursor->mask[i];
 875                        break;
 876                default:
 877                        break;
 878                }
 879
 880                if (cur_size == 32) {
 881                        for (i = 0; i < size; i++) {
 882                                cr_data->bak[j] = (u32) cr_data->data[i];
 883                                cr_data->bak[j + 1] = ~cr_data->bak[j];
 884                                j += 2;
 885                        }
 886                } else {
 887                        for (i = 0; i < size; i++) {
 888                                cr_data->bak[j] = (u32) cr_data->data[i];
 889                                cr_data->bak[j + 1] = 0x0;
 890                                cr_data->bak[j + 2] = ~cr_data->bak[j];
 891                                cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
 892                                j += 4;
 893                        }
 894                }
 895
 896                memcpy_toio(viafbinfo->screen_base + viapar->shared->
 897                        cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
 898                kfree(cr_data);
 899        }
 900
 901        if (cursor->enable)
 902                viafb_show_hw_cursor(info, HW_Cursor_ON);
 903
 904        return 0;
 905}
 906
 907static int viafb_sync(struct fb_info *info)
 908{
 909        if (!(info->flags & FBINFO_HWACCEL_DISABLED))
 910                viafb_wait_engine_idle(info);
 911        return 0;
 912}
 913
 914static int get_primary_device(void)
 915{
 916        int primary_device = 0;
 917        /* Rule: device on iga1 path are the primary device. */
 918        if (viafb_SAMM_ON) {
 919                if (viafb_CRT_ON) {
 920                        if (viaparinfo->shared->iga1_devices & VIA_CRT) {
 921                                DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
 922                                primary_device = CRT_Device;
 923                        }
 924                }
 925                if (viafb_DVI_ON) {
 926                        if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
 927                                DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
 928                                        viaparinfo->
 929                                        tmds_setting_info->iga_path);
 930                                primary_device = DVI_Device;
 931                        }
 932                }
 933                if (viafb_LCD_ON) {
 934                        if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
 935                                DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
 936                                        viaparinfo->
 937                                        lvds_setting_info->iga_path);
 938                                primary_device = LCD_Device;
 939                        }
 940                }
 941                if (viafb_LCD2_ON) {
 942                        if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
 943                                DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
 944                                        viaparinfo->
 945                                        lvds_setting_info2->iga_path);
 946                                primary_device = LCD2_Device;
 947                        }
 948                }
 949        }
 950        return primary_device;
 951}
 952
 953static void retrieve_device_setting(struct viafb_ioctl_setting
 954        *setting_info)
 955{
 956
 957        /* get device status */
 958        if (viafb_CRT_ON == 1)
 959                setting_info->device_status = CRT_Device;
 960        if (viafb_DVI_ON == 1)
 961                setting_info->device_status |= DVI_Device;
 962        if (viafb_LCD_ON == 1)
 963                setting_info->device_status |= LCD_Device;
 964        if (viafb_LCD2_ON == 1)
 965                setting_info->device_status |= LCD2_Device;
 966
 967        setting_info->samm_status = viafb_SAMM_ON;
 968        setting_info->primary_device = get_primary_device();
 969
 970        setting_info->first_dev_bpp = viafb_bpp;
 971        setting_info->second_dev_bpp = viafb_bpp1;
 972
 973        setting_info->first_dev_refresh = viafb_refresh;
 974        setting_info->second_dev_refresh = viafb_refresh1;
 975
 976        setting_info->first_dev_hor_res = viafb_hotplug_Xres;
 977        setting_info->first_dev_ver_res = viafb_hotplug_Yres;
 978        setting_info->second_dev_hor_res = viafb_second_xres;
 979        setting_info->second_dev_ver_res = viafb_second_yres;
 980
 981        /* Get lcd attributes */
 982        setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
 983        setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
 984        setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
 985}
 986
 987static int __init parse_active_dev(void)
 988{
 989        viafb_CRT_ON = STATE_OFF;
 990        viafb_DVI_ON = STATE_OFF;
 991        viafb_LCD_ON = STATE_OFF;
 992        viafb_LCD2_ON = STATE_OFF;
 993        /* 1. Modify the active status of devices. */
 994        /* 2. Keep the order of devices, so we can set corresponding
 995           IGA path to devices in SAMM case. */
 996        /*    Note: The previous of active_dev is primary device,
 997           and the following is secondary device. */
 998        if (!viafb_active_dev) {
 999                if (machine_is_olpc()) { /* LCD only */
1000                        viafb_LCD_ON = STATE_ON;
1001                        viafb_SAMM_ON = STATE_OFF;
1002                } else {
1003                        viafb_CRT_ON = STATE_ON;
1004                        viafb_SAMM_ON = STATE_OFF;
1005                }
1006        } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1007                /* CRT+DVI */
1008                viafb_CRT_ON = STATE_ON;
1009                viafb_DVI_ON = STATE_ON;
1010                viafb_primary_dev = CRT_Device;
1011        } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1012                /* DVI+CRT */
1013                viafb_CRT_ON = STATE_ON;
1014                viafb_DVI_ON = STATE_ON;
1015                viafb_primary_dev = DVI_Device;
1016        } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1017                /* CRT+LCD */
1018                viafb_CRT_ON = STATE_ON;
1019                viafb_LCD_ON = STATE_ON;
1020                viafb_primary_dev = CRT_Device;
1021        } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1022                /* LCD+CRT */
1023                viafb_CRT_ON = STATE_ON;
1024                viafb_LCD_ON = STATE_ON;
1025                viafb_primary_dev = LCD_Device;
1026        } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1027                /* DVI+LCD */
1028                viafb_DVI_ON = STATE_ON;
1029                viafb_LCD_ON = STATE_ON;
1030                viafb_primary_dev = DVI_Device;
1031        } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1032                /* LCD+DVI */
1033                viafb_DVI_ON = STATE_ON;
1034                viafb_LCD_ON = STATE_ON;
1035                viafb_primary_dev = LCD_Device;
1036        } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1037                viafb_LCD_ON = STATE_ON;
1038                viafb_LCD2_ON = STATE_ON;
1039                viafb_primary_dev = LCD_Device;
1040        } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1041                viafb_LCD_ON = STATE_ON;
1042                viafb_LCD2_ON = STATE_ON;
1043                viafb_primary_dev = LCD2_Device;
1044        } else if (!strcmp(viafb_active_dev, "CRT")) {
1045                /* CRT only */
1046                viafb_CRT_ON = STATE_ON;
1047                viafb_SAMM_ON = STATE_OFF;
1048        } else if (!strcmp(viafb_active_dev, "DVI")) {
1049                /* DVI only */
1050                viafb_DVI_ON = STATE_ON;
1051                viafb_SAMM_ON = STATE_OFF;
1052        } else if (!strcmp(viafb_active_dev, "LCD")) {
1053                /* LCD only */
1054                viafb_LCD_ON = STATE_ON;
1055                viafb_SAMM_ON = STATE_OFF;
1056        } else
1057                return -EINVAL;
1058
1059        return 0;
1060}
1061
1062static int parse_port(char *opt_str, int *output_interface)
1063{
1064        if (!strncmp(opt_str, "DVP0", 4))
1065                *output_interface = INTERFACE_DVP0;
1066        else if (!strncmp(opt_str, "DVP1", 4))
1067                *output_interface = INTERFACE_DVP1;
1068        else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1069                *output_interface = INTERFACE_DFP;
1070        else if (!strncmp(opt_str, "DFP_HIGH", 8))
1071                *output_interface = INTERFACE_DFP_HIGH;
1072        else if (!strncmp(opt_str, "DFP_LOW", 7))
1073                *output_interface = INTERFACE_DFP_LOW;
1074        else
1075                *output_interface = INTERFACE_NONE;
1076        return 0;
1077}
1078
1079static void parse_lcd_port(void)
1080{
1081        parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1082                output_interface);
1083        /*Initialize to avoid unexpected behavior */
1084        viaparinfo->chip_info->lvds_chip_info2.output_interface =
1085        INTERFACE_NONE;
1086
1087        DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1088                  viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1089                  output_interface);
1090}
1091
1092static void parse_dvi_port(void)
1093{
1094        parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1095                output_interface);
1096
1097        DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1098                  viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1099                  output_interface);
1100}
1101
1102#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1103
1104/*
1105 * The proc filesystem read/write function, a simple proc implement to
1106 * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1107 * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1108 * CR9B,    SR65,    CR97,    CR99
1109 */
1110static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1111{
1112        u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1113        dvp0_data_dri =
1114            (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1115            (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1116        dvp0_clk_dri =
1117            (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1118            (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1119        dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1120        seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1121        return 0;
1122}
1123
1124static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1125{
1126        return single_open(file, viafb_dvp0_proc_show, NULL);
1127}
1128
1129static ssize_t viafb_dvp0_proc_write(struct file *file,
1130        const char __user *buffer, size_t count, loff_t *pos)
1131{
1132        char buf[20], *value, *pbuf;
1133        u8 reg_val = 0;
1134        unsigned long length, i;
1135        if (count < 1)
1136                return -EINVAL;
1137        length = count > 20 ? 20 : count;
1138        if (copy_from_user(&buf[0], buffer, length))
1139                return -EFAULT;
1140        buf[length - 1] = '\0'; /*Ensure end string */
1141        pbuf = &buf[0];
1142        for (i = 0; i < 3; i++) {
1143                value = strsep(&pbuf, " ");
1144                if (value != NULL) {
1145                        if (kstrtou8(value, 0, &reg_val) < 0)
1146                                return -EINVAL;
1147                        DEBUG_MSG(KERN_INFO "DVP0:reg_val[%lu]=:%x\n", i,
1148                                  reg_val);
1149                        switch (i) {
1150                        case 0:
1151                                viafb_write_reg_mask(CR96, VIACR,
1152                                        reg_val, 0x0f);
1153                                break;
1154                        case 1:
1155                                viafb_write_reg_mask(SR2A, VIASR,
1156                                        reg_val << 4, BIT5);
1157                                viafb_write_reg_mask(SR1B, VIASR,
1158                                        reg_val << 1, BIT1);
1159                                break;
1160                        case 2:
1161                                viafb_write_reg_mask(SR2A, VIASR,
1162                                        reg_val << 3, BIT4);
1163                                viafb_write_reg_mask(SR1E, VIASR,
1164                                        reg_val << 2, BIT2);
1165                                break;
1166                        default:
1167                                break;
1168                        }
1169                } else {
1170                        break;
1171                }
1172        }
1173        return count;
1174}
1175
1176static const struct proc_ops viafb_dvp0_proc_ops = {
1177        .proc_open      = viafb_dvp0_proc_open,
1178        .proc_read      = seq_read,
1179        .proc_lseek     = seq_lseek,
1180        .proc_release   = single_release,
1181        .proc_write     = viafb_dvp0_proc_write,
1182};
1183
1184static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1185{
1186        u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1187        dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1188        dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1189        dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1190        seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1191        return 0;
1192}
1193
1194static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1195{
1196        return single_open(file, viafb_dvp1_proc_show, NULL);
1197}
1198
1199static ssize_t viafb_dvp1_proc_write(struct file *file,
1200        const char __user *buffer, size_t count, loff_t *pos)
1201{
1202        char buf[20], *value, *pbuf;
1203        u8 reg_val = 0;
1204        unsigned long length, i;
1205        if (count < 1)
1206                return -EINVAL;
1207        length = count > 20 ? 20 : count;
1208        if (copy_from_user(&buf[0], buffer, length))
1209                return -EFAULT;
1210        buf[length - 1] = '\0'; /*Ensure end string */
1211        pbuf = &buf[0];
1212        for (i = 0; i < 3; i++) {
1213                value = strsep(&pbuf, " ");
1214                if (value != NULL) {
1215                        if (kstrtou8(value, 0, &reg_val) < 0)
1216                                return -EINVAL;
1217                        switch (i) {
1218                        case 0:
1219                                viafb_write_reg_mask(CR9B, VIACR,
1220                                        reg_val, 0x0f);
1221                                break;
1222                        case 1:
1223                                viafb_write_reg_mask(SR65, VIASR,
1224                                        reg_val << 2, 0x0c);
1225                                break;
1226                        case 2:
1227                                viafb_write_reg_mask(SR65, VIASR,
1228                                        reg_val, 0x03);
1229                                break;
1230                        default:
1231                                break;
1232                        }
1233                } else {
1234                        break;
1235                }
1236        }
1237        return count;
1238}
1239
1240static const struct proc_ops viafb_dvp1_proc_ops = {
1241        .proc_open      = viafb_dvp1_proc_open,
1242        .proc_read      = seq_read,
1243        .proc_lseek     = seq_lseek,
1244        .proc_release   = single_release,
1245        .proc_write     = viafb_dvp1_proc_write,
1246};
1247
1248static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1249{
1250        u8 dfp_high = 0;
1251        dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1252        seq_printf(m, "%x\n", dfp_high);
1253        return 0;
1254}
1255
1256static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1257{
1258        return single_open(file, viafb_dfph_proc_show, NULL);
1259}
1260
1261static ssize_t viafb_dfph_proc_write(struct file *file,
1262        const char __user *buffer, size_t count, loff_t *pos)
1263{
1264        int err;
1265        u8 reg_val;
1266        err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1267        if (err)
1268                return err;
1269
1270        viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1271        return count;
1272}
1273
1274static const struct proc_ops viafb_dfph_proc_ops = {
1275        .proc_open      = viafb_dfph_proc_open,
1276        .proc_read      = seq_read,
1277        .proc_lseek     = seq_lseek,
1278        .proc_release   = single_release,
1279        .proc_write     = viafb_dfph_proc_write,
1280};
1281
1282static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1283{
1284        u8 dfp_low = 0;
1285        dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1286        seq_printf(m, "%x\n", dfp_low);
1287        return 0;
1288}
1289
1290static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1291{
1292        return single_open(file, viafb_dfpl_proc_show, NULL);
1293}
1294
1295static ssize_t viafb_dfpl_proc_write(struct file *file,
1296        const char __user *buffer, size_t count, loff_t *pos)
1297{
1298        int err;
1299        u8 reg_val;
1300        err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1301        if (err)
1302                return err;
1303
1304        viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1305        return count;
1306}
1307
1308static const struct proc_ops viafb_dfpl_proc_ops = {
1309        .proc_open      = viafb_dfpl_proc_open,
1310        .proc_read      = seq_read,
1311        .proc_lseek     = seq_lseek,
1312        .proc_release   = single_release,
1313        .proc_write     = viafb_dfpl_proc_write,
1314};
1315
1316static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1317{
1318        u8 vt1636_08 = 0, vt1636_09 = 0;
1319        switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1320        case VT1636_LVDS:
1321                vt1636_08 =
1322                    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1323                    &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1324                vt1636_09 =
1325                    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1326                    &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1327                seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1328                break;
1329        default:
1330                break;
1331        }
1332        switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1333        case VT1636_LVDS:
1334                vt1636_08 =
1335                    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1336                        &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1337                vt1636_09 =
1338                    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1339                        &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1340                seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1341                break;
1342        default:
1343                break;
1344        }
1345        return 0;
1346}
1347
1348static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1349{
1350        return single_open(file, viafb_vt1636_proc_show, NULL);
1351}
1352
1353static ssize_t viafb_vt1636_proc_write(struct file *file,
1354        const char __user *buffer, size_t count, loff_t *pos)
1355{
1356        char buf[30], *value, *pbuf;
1357        struct IODATA reg_val;
1358        unsigned long length, i;
1359        if (count < 1)
1360                return -EINVAL;
1361        length = count > 30 ? 30 : count;
1362        if (copy_from_user(&buf[0], buffer, length))
1363                return -EFAULT;
1364        buf[length - 1] = '\0'; /*Ensure end string */
1365        pbuf = &buf[0];
1366        switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1367        case VT1636_LVDS:
1368                for (i = 0; i < 2; i++) {
1369                        value = strsep(&pbuf, " ");
1370                        if (value != NULL) {
1371                                if (kstrtou8(value, 0, &reg_val.Data) < 0)
1372                                        return -EINVAL;
1373                                switch (i) {
1374                                case 0:
1375                                        reg_val.Index = 0x08;
1376                                        reg_val.Mask = 0x0f;
1377                                        viafb_gpio_i2c_write_mask_lvds
1378                                            (viaparinfo->lvds_setting_info,
1379                                            &viaparinfo->
1380                                            chip_info->lvds_chip_info,
1381                                             reg_val);
1382                                        break;
1383                                case 1:
1384                                        reg_val.Index = 0x09;
1385                                        reg_val.Mask = 0x1f;
1386                                        viafb_gpio_i2c_write_mask_lvds
1387                                            (viaparinfo->lvds_setting_info,
1388                                            &viaparinfo->
1389                                            chip_info->lvds_chip_info,
1390                                             reg_val);
1391                                        break;
1392                                default:
1393                                        break;
1394                                }
1395                        } else {
1396                                break;
1397                        }
1398                }
1399                break;
1400        default:
1401                break;
1402        }
1403        switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1404        case VT1636_LVDS:
1405                for (i = 0; i < 2; i++) {
1406                        value = strsep(&pbuf, " ");
1407                        if (value != NULL) {
1408                                if (kstrtou8(value, 0, &reg_val.Data) < 0)
1409                                        return -EINVAL;
1410                                switch (i) {
1411                                case 0:
1412                                        reg_val.Index = 0x08;
1413                                        reg_val.Mask = 0x0f;
1414                                        viafb_gpio_i2c_write_mask_lvds
1415                                            (viaparinfo->lvds_setting_info2,
1416                                            &viaparinfo->
1417                                            chip_info->lvds_chip_info2,
1418                                             reg_val);
1419                                        break;
1420                                case 1:
1421                                        reg_val.Index = 0x09;
1422                                        reg_val.Mask = 0x1f;
1423                                        viafb_gpio_i2c_write_mask_lvds
1424                                            (viaparinfo->lvds_setting_info2,
1425                                            &viaparinfo->
1426                                            chip_info->lvds_chip_info2,
1427                                             reg_val);
1428                                        break;
1429                                default:
1430                                        break;
1431                                }
1432                        } else {
1433                                break;
1434                        }
1435                }
1436                break;
1437        default:
1438                break;
1439        }
1440        return count;
1441}
1442
1443static const struct proc_ops viafb_vt1636_proc_ops = {
1444        .proc_open      = viafb_vt1636_proc_open,
1445        .proc_read      = seq_read,
1446        .proc_lseek     = seq_lseek,
1447        .proc_release   = single_release,
1448        .proc_write     = viafb_vt1636_proc_write,
1449};
1450
1451#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1452
1453static int __maybe_unused viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1454{
1455        via_odev_to_seq(m, supported_odev_map[
1456                viaparinfo->shared->chip_info.gfx_chip_name]);
1457        return 0;
1458}
1459
1460static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1461{
1462        char buf[64], *ptr = buf;
1463        u32 devices;
1464        bool add, sub;
1465
1466        if (count < 1 || count > 63)
1467                return -EINVAL;
1468        if (copy_from_user(&buf[0], buffer, count))
1469                return -EFAULT;
1470        buf[count] = '\0';
1471        add = buf[0] == '+';
1472        sub = buf[0] == '-';
1473        if (add || sub)
1474                ptr++;
1475        devices = via_parse_odev(ptr, &ptr);
1476        if (*ptr == '\n')
1477                ptr++;
1478        if (*ptr != 0)
1479                return -EINVAL;
1480        if (add)
1481                *odev |= devices;
1482        else if (sub)
1483                *odev &= ~devices;
1484        else
1485                *odev = devices;
1486        return count;
1487}
1488
1489static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1490{
1491        via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1492        return 0;
1493}
1494
1495static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1496{
1497        return single_open(file, viafb_iga1_odev_proc_show, NULL);
1498}
1499
1500static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1501        const char __user *buffer, size_t count, loff_t *pos)
1502{
1503        u32 dev_on, dev_off, dev_old, dev_new;
1504        ssize_t res;
1505
1506        dev_old = dev_new = viaparinfo->shared->iga1_devices;
1507        res = odev_update(buffer, count, &dev_new);
1508        if (res != count)
1509                return res;
1510        dev_off = dev_old & ~dev_new;
1511        dev_on = dev_new & ~dev_old;
1512        viaparinfo->shared->iga1_devices = dev_new;
1513        viaparinfo->shared->iga2_devices &= ~dev_new;
1514        via_set_state(dev_off, VIA_STATE_OFF);
1515        via_set_source(dev_new, IGA1);
1516        via_set_state(dev_on, VIA_STATE_ON);
1517        return res;
1518}
1519
1520static const struct proc_ops viafb_iga1_odev_proc_ops = {
1521        .proc_open      = viafb_iga1_odev_proc_open,
1522        .proc_read      = seq_read,
1523        .proc_lseek     = seq_lseek,
1524        .proc_release   = single_release,
1525        .proc_write     = viafb_iga1_odev_proc_write,
1526};
1527
1528static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1529{
1530        via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1531        return 0;
1532}
1533
1534static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1535{
1536        return single_open(file, viafb_iga2_odev_proc_show, NULL);
1537}
1538
1539static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1540        const char __user *buffer, size_t count, loff_t *pos)
1541{
1542        u32 dev_on, dev_off, dev_old, dev_new;
1543        ssize_t res;
1544
1545        dev_old = dev_new = viaparinfo->shared->iga2_devices;
1546        res = odev_update(buffer, count, &dev_new);
1547        if (res != count)
1548                return res;
1549        dev_off = dev_old & ~dev_new;
1550        dev_on = dev_new & ~dev_old;
1551        viaparinfo->shared->iga2_devices = dev_new;
1552        viaparinfo->shared->iga1_devices &= ~dev_new;
1553        via_set_state(dev_off, VIA_STATE_OFF);
1554        via_set_source(dev_new, IGA2);
1555        via_set_state(dev_on, VIA_STATE_ON);
1556        return res;
1557}
1558
1559static const struct proc_ops viafb_iga2_odev_proc_ops = {
1560        .proc_open      = viafb_iga2_odev_proc_open,
1561        .proc_read      = seq_read,
1562        .proc_lseek     = seq_lseek,
1563        .proc_release   = single_release,
1564        .proc_write     = viafb_iga2_odev_proc_write,
1565};
1566
1567#define IS_VT1636(lvds_chip)    ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1568static void viafb_init_proc(struct viafb_shared *shared)
1569{
1570        struct proc_dir_entry *iga1_entry, *iga2_entry,
1571                *viafb_entry = proc_mkdir("viafb", NULL);
1572
1573        shared->proc_entry = viafb_entry;
1574        if (viafb_entry) {
1575#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1576                proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_ops);
1577                proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_ops);
1578                proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_ops);
1579                proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_ops);
1580                if (IS_VT1636(shared->chip_info.lvds_chip_info)
1581                        || IS_VT1636(shared->chip_info.lvds_chip_info2))
1582                        proc_create("vt1636", 0, viafb_entry,
1583                                    &viafb_vt1636_proc_ops);
1584#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1585
1586                proc_create_single("supported_output_devices", 0, viafb_entry,
1587                        viafb_sup_odev_proc_show);
1588                iga1_entry = proc_mkdir("iga1", viafb_entry);
1589                shared->iga1_proc_entry = iga1_entry;
1590                proc_create("output_devices", 0, iga1_entry,
1591                            &viafb_iga1_odev_proc_ops);
1592                iga2_entry = proc_mkdir("iga2", viafb_entry);
1593                shared->iga2_proc_entry = iga2_entry;
1594                proc_create("output_devices", 0, iga2_entry,
1595                            &viafb_iga2_odev_proc_ops);
1596        }
1597}
1598static void viafb_remove_proc(struct viafb_shared *shared)
1599{
1600        struct proc_dir_entry *viafb_entry = shared->proc_entry;
1601
1602        if (!viafb_entry)
1603                return;
1604
1605        remove_proc_entry("output_devices", shared->iga2_proc_entry);
1606        remove_proc_entry("iga2", viafb_entry);
1607        remove_proc_entry("output_devices", shared->iga1_proc_entry);
1608        remove_proc_entry("iga1", viafb_entry);
1609        remove_proc_entry("supported_output_devices", viafb_entry);
1610
1611#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1612        remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1613        remove_proc_entry("dvp1", viafb_entry);
1614        remove_proc_entry("dfph", viafb_entry);
1615        remove_proc_entry("dfpl", viafb_entry);
1616        if (IS_VT1636(shared->chip_info.lvds_chip_info)
1617                || IS_VT1636(shared->chip_info.lvds_chip_info2))
1618                remove_proc_entry("vt1636", viafb_entry);
1619#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1620
1621        remove_proc_entry("viafb", NULL);
1622}
1623#undef IS_VT1636
1624
1625static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1626{
1627        const struct fb_videomode *mode = NULL;
1628        char *ptr;
1629
1630        if (!str) {
1631                if (devices == VIA_CRT)
1632                        mode = via_aux_get_preferred_mode(
1633                                viaparinfo->shared->i2c_26);
1634                else if (devices == VIA_DVP1)
1635                        mode = via_aux_get_preferred_mode(
1636                                viaparinfo->shared->i2c_31);
1637
1638                if (mode) {
1639                        *xres = mode->xres;
1640                        *yres = mode->yres;
1641                } else if (machine_is_olpc()) {
1642                        *xres = 1200;
1643                        *yres = 900;
1644                } else {
1645                        *xres = 640;
1646                        *yres = 480;
1647                }
1648                return 0;
1649        }
1650
1651        *xres = simple_strtoul(str, &ptr, 10);
1652        if (ptr[0] != 'x')
1653                return -EINVAL;
1654
1655        *yres = simple_strtoul(&ptr[1], &ptr, 10);
1656        if (ptr[0])
1657                return -EINVAL;
1658
1659        return 0;
1660}
1661
1662
1663#ifdef CONFIG_PM
1664static int viafb_suspend(void *unused)
1665{
1666        console_lock();
1667        fb_set_suspend(viafbinfo, 1);
1668        viafb_sync(viafbinfo);
1669        console_unlock();
1670
1671        return 0;
1672}
1673
1674static int viafb_resume(void *unused)
1675{
1676        console_lock();
1677        if (viaparinfo->shared->vdev->engine_mmio)
1678                viafb_reset_engine(viaparinfo);
1679        viafb_set_par(viafbinfo);
1680        if (viafb_dual_fb)
1681                viafb_set_par(viafbinfo1);
1682        fb_set_suspend(viafbinfo, 0);
1683
1684        console_unlock();
1685        return 0;
1686}
1687
1688static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1689        .suspend = viafb_suspend,
1690        .resume = viafb_resume
1691};
1692
1693#endif
1694
1695static void i2c_bus_probe(struct viafb_shared *shared)
1696{
1697        /* should be always CRT */
1698        printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1699        shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1700
1701        /* seems to be usually DVP1 */
1702        printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1703        shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1704
1705        /* FIXME: what is this? */
1706        if (!machine_is_olpc()) {
1707                printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1708                shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1709        }
1710
1711        printk(KERN_INFO "viafb: Finished I2C bus probing");
1712}
1713
1714static void i2c_bus_free(struct viafb_shared *shared)
1715{
1716        via_aux_free(shared->i2c_26);
1717        via_aux_free(shared->i2c_31);
1718        via_aux_free(shared->i2c_2C);
1719}
1720
1721int via_fb_pci_probe(struct viafb_dev *vdev)
1722{
1723        u32 default_xres, default_yres;
1724        struct fb_var_screeninfo default_var;
1725        int rc;
1726        u32 viafb_par_length;
1727
1728        DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1729        memset(&default_var, 0, sizeof(default_var));
1730        viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1731
1732        /* Allocate fb_info and ***_par here, also including some other needed
1733         * variables
1734        */
1735        viafbinfo = framebuffer_alloc(viafb_par_length +
1736                ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1737                &vdev->pdev->dev);
1738        if (!viafbinfo)
1739                return -ENOMEM;
1740
1741        viaparinfo = (struct viafb_par *)viafbinfo->par;
1742        viaparinfo->shared = viafbinfo->par + viafb_par_length;
1743        viaparinfo->shared->vdev = vdev;
1744        viaparinfo->vram_addr = 0;
1745        viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1746        viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1747        viaparinfo->lvds_setting_info2 =
1748                &viaparinfo->shared->lvds_setting_info2;
1749        viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1750
1751        i2c_bus_probe(viaparinfo->shared);
1752        if (viafb_dual_fb)
1753                viafb_SAMM_ON = 1;
1754        parse_lcd_port();
1755        parse_dvi_port();
1756
1757        viafb_init_chip_info(vdev->chip_type);
1758        /*
1759         * The framebuffer will have been successfully mapped by
1760         * the core (or we'd not be here), but we still need to
1761         * set up our own accounting.
1762         */
1763        viaparinfo->fbmem = vdev->fbmem_start;
1764        viaparinfo->memsize = vdev->fbmem_len;
1765        viaparinfo->fbmem_free = viaparinfo->memsize;
1766        viaparinfo->fbmem_used = 0;
1767        viafbinfo->screen_base = vdev->fbmem;
1768
1769        viafbinfo->fix.mmio_start = vdev->engine_start;
1770        viafbinfo->fix.mmio_len = vdev->engine_len;
1771        viafbinfo->node = 0;
1772        viafbinfo->fbops = &viafb_ops;
1773        viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1774
1775        viafbinfo->pseudo_palette = pseudo_pal;
1776        if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1777                viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1778                        FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1779                default_var.accel_flags = FB_ACCELF_TEXT;
1780        } else {
1781                viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1782                default_var.accel_flags = 0;
1783        }
1784
1785        if (viafb_second_size && (viafb_second_size < 8)) {
1786                viafb_second_offset = viaparinfo->fbmem_free -
1787                        viafb_second_size * 1024 * 1024;
1788        } else {
1789                viafb_second_size = 8;
1790                viafb_second_offset = viaparinfo->fbmem_free -
1791                        viafb_second_size * 1024 * 1024;
1792        }
1793
1794        parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1795                &default_xres, &default_yres);
1796        if (viafb_SAMM_ON == 1)
1797                parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1798                        &viafb_second_xres, &viafb_second_yres);
1799
1800        default_var.xres = default_xres;
1801        default_var.yres = default_yres;
1802        default_var.xres_virtual = default_xres;
1803        default_var.yres_virtual = default_yres;
1804        default_var.bits_per_pixel = viafb_bpp;
1805        viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1806                default_var.xres, default_var.yres, viafb_refresh));
1807        viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1808        viafbinfo->var = default_var;
1809
1810        if (viafb_dual_fb) {
1811                viafbinfo1 = framebuffer_alloc(viafb_par_length,
1812                                &vdev->pdev->dev);
1813                if (!viafbinfo1) {
1814                        rc = -ENOMEM;
1815                        goto out_fb_release;
1816                }
1817                viaparinfo1 = viafbinfo1->par;
1818                memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1819                viaparinfo1->vram_addr = viafb_second_offset;
1820                viaparinfo1->memsize = viaparinfo->memsize -
1821                        viafb_second_offset;
1822                viaparinfo->memsize = viafb_second_offset;
1823                viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1824
1825                viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1826                viaparinfo1->fbmem_free = viaparinfo1->memsize -
1827                        viaparinfo1->fbmem_used;
1828                viaparinfo->fbmem_free = viaparinfo->memsize;
1829                viaparinfo->fbmem_used = 0;
1830
1831                viaparinfo->iga_path = IGA1;
1832                viaparinfo1->iga_path = IGA2;
1833                memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1834                viafbinfo1->par = viaparinfo1;
1835                viafbinfo1->screen_base = viafbinfo->screen_base +
1836                        viafb_second_offset;
1837
1838                default_var.xres = viafb_second_xres;
1839                default_var.yres = viafb_second_yres;
1840                default_var.xres_virtual = viafb_second_xres;
1841                default_var.yres_virtual = viafb_second_yres;
1842                default_var.bits_per_pixel = viafb_bpp1;
1843                viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1844                        default_var.xres, default_var.yres, viafb_refresh1));
1845
1846                viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1847                viafb_check_var(&default_var, viafbinfo1);
1848                viafbinfo1->var = default_var;
1849                viafb_update_fix(viafbinfo1);
1850                viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1851                        &viafbinfo1->fix);
1852        }
1853
1854        viafb_check_var(&viafbinfo->var, viafbinfo);
1855        viafb_update_fix(viafbinfo);
1856        viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1857                &viafbinfo->fix);
1858        default_var.activate = FB_ACTIVATE_NOW;
1859        rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1860        if (rc)
1861                goto out_fb1_release;
1862
1863        if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1864            && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1865                rc = register_framebuffer(viafbinfo1);
1866                if (rc)
1867                        goto out_dealloc_cmap;
1868        }
1869        rc = register_framebuffer(viafbinfo);
1870        if (rc)
1871                goto out_fb1_unreg_lcd_cle266;
1872
1873        if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1874                        || (viaparinfo->chip_info->gfx_chip_name !=
1875                        UNICHROME_CLE266))) {
1876                rc = register_framebuffer(viafbinfo1);
1877                if (rc)
1878                        goto out_fb_unreg;
1879        }
1880        DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1881                  viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1882                  default_var.yres, default_var.bits_per_pixel);
1883
1884        viafb_init_proc(viaparinfo->shared);
1885        viafb_init_dac(IGA2);
1886
1887#ifdef CONFIG_PM
1888        viafb_pm_register(&viafb_fb_pm_hooks);
1889#endif
1890        return 0;
1891
1892out_fb_unreg:
1893        unregister_framebuffer(viafbinfo);
1894out_fb1_unreg_lcd_cle266:
1895        if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1896            && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1897                unregister_framebuffer(viafbinfo1);
1898out_dealloc_cmap:
1899        fb_dealloc_cmap(&viafbinfo->cmap);
1900out_fb1_release:
1901        framebuffer_release(viafbinfo1);
1902out_fb_release:
1903        i2c_bus_free(viaparinfo->shared);
1904        framebuffer_release(viafbinfo);
1905        return rc;
1906}
1907
1908void via_fb_pci_remove(struct pci_dev *pdev)
1909{
1910        DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1911        fb_dealloc_cmap(&viafbinfo->cmap);
1912        unregister_framebuffer(viafbinfo);
1913        if (viafb_dual_fb)
1914                unregister_framebuffer(viafbinfo1);
1915        viafb_remove_proc(viaparinfo->shared);
1916        i2c_bus_free(viaparinfo->shared);
1917        framebuffer_release(viafbinfo);
1918        if (viafb_dual_fb)
1919                framebuffer_release(viafbinfo1);
1920}
1921
1922#ifndef MODULE
1923static int __init viafb_setup(void)
1924{
1925        char *this_opt;
1926        char *options;
1927
1928        DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1929
1930        if (fb_get_options("viafb", &options))
1931                return -ENODEV;
1932
1933        if (!options || !*options)
1934                return 0;
1935
1936        while ((this_opt = strsep(&options, ",")) != NULL) {
1937                if (!*this_opt)
1938                        continue;
1939
1940                if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1941                        viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1942                } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1943                        viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1944                } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1945                        if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1946                                return -EINVAL;
1947                } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1948                        if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1949                                return -EINVAL;
1950                } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1951                        if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1952                                return -EINVAL;
1953                } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1954                        if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1955                                return -EINVAL;
1956                } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1957                        if (kstrtoint(this_opt + 21, 0,
1958                                      &viafb_lcd_dsp_method) < 0)
1959                                return -EINVAL;
1960                } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1961                        if (kstrtoint(this_opt + 19, 0,
1962                                      &viafb_lcd_panel_id) < 0)
1963                                return -EINVAL;
1964                } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1965                        if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
1966                                return -EINVAL;
1967                } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1968                        if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
1969                                return -EINVAL;
1970                } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1971                        viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1972                } else if (!strncmp(this_opt,
1973                        "viafb_display_hardware_layout=", 30)) {
1974                        if (kstrtoint(this_opt + 30, 0,
1975                                      &viafb_display_hardware_layout) < 0)
1976                                return -EINVAL;
1977                } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
1978                        if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
1979                                return -EINVAL;
1980                } else if (!strncmp(this_opt,
1981                        "viafb_platform_epia_dvi=", 24)) {
1982                        if (kstrtoint(this_opt + 24, 0,
1983                                      &viafb_platform_epia_dvi) < 0)
1984                                return -EINVAL;
1985                } else if (!strncmp(this_opt,
1986                        "viafb_device_lcd_dualedge=", 26)) {
1987                        if (kstrtoint(this_opt + 26, 0,
1988                                      &viafb_device_lcd_dualedge) < 0)
1989                                return -EINVAL;
1990                } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
1991                        if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
1992                                return -EINVAL;
1993                } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
1994                        if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
1995                                return -EINVAL;
1996                } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
1997                        viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
1998                } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
1999                        viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2000                }
2001        }
2002        return 0;
2003}
2004#endif
2005
2006/*
2007 * These are called out of via-core for now.
2008 */
2009int __init viafb_init(void)
2010{
2011        u32 dummy_x, dummy_y;
2012        int r = 0;
2013
2014        if (machine_is_olpc())
2015                /* Apply XO-1.5-specific configuration. */
2016                viafb_lcd_panel_id = 23;
2017
2018#ifndef MODULE
2019        r = viafb_setup();
2020        if (r < 0)
2021                return r;
2022#endif
2023        if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2024                || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2025                || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2026                || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2027                || viafb_bpp < 0 || viafb_bpp > 32
2028                || viafb_bpp1 < 0 || viafb_bpp1 > 32
2029                || parse_active_dev())
2030                return -EINVAL;
2031
2032        printk(KERN_INFO
2033       "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2034               VERSION_MAJOR, VERSION_MINOR);
2035        return r;
2036}
2037
2038void __exit viafb_exit(void)
2039{
2040        DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2041}
2042
2043static struct fb_ops viafb_ops = {
2044        .owner = THIS_MODULE,
2045        .fb_open = viafb_open,
2046        .fb_release = viafb_release,
2047        .fb_check_var = viafb_check_var,
2048        .fb_set_par = viafb_set_par,
2049        .fb_setcolreg = viafb_setcolreg,
2050        .fb_pan_display = viafb_pan_display,
2051        .fb_blank = viafb_blank,
2052        .fb_fillrect = viafb_fillrect,
2053        .fb_copyarea = viafb_copyarea,
2054        .fb_imageblit = viafb_imageblit,
2055        .fb_cursor = viafb_cursor,
2056        .fb_ioctl = viafb_ioctl,
2057        .fb_sync = viafb_sync,
2058};
2059
2060
2061#ifdef MODULE
2062module_param(viafb_mode, charp, S_IRUSR);
2063MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2064
2065module_param(viafb_mode1, charp, S_IRUSR);
2066MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2067
2068module_param(viafb_bpp, int, S_IRUSR);
2069MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2070
2071module_param(viafb_bpp1, int, S_IRUSR);
2072MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2073
2074module_param(viafb_refresh, int, S_IRUSR);
2075MODULE_PARM_DESC(viafb_refresh,
2076        "Set CRT viafb_refresh rate (default = 60)");
2077
2078module_param(viafb_refresh1, int, S_IRUSR);
2079MODULE_PARM_DESC(viafb_refresh1,
2080        "Set CRT refresh rate (default = 60)");
2081
2082module_param(viafb_lcd_panel_id, int, S_IRUSR);
2083MODULE_PARM_DESC(viafb_lcd_panel_id,
2084        "Set Flat Panel type(Default=1024x768)");
2085
2086module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2087MODULE_PARM_DESC(viafb_lcd_dsp_method,
2088        "Set Flat Panel display scaling method.(Default=Expansion)");
2089
2090module_param(viafb_SAMM_ON, int, S_IRUSR);
2091MODULE_PARM_DESC(viafb_SAMM_ON,
2092        "Turn on/off flag of SAMM(Default=OFF)");
2093
2094module_param(viafb_accel, int, S_IRUSR);
2095MODULE_PARM_DESC(viafb_accel,
2096        "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2097
2098module_param(viafb_active_dev, charp, S_IRUSR);
2099MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2100
2101module_param(viafb_display_hardware_layout, int, S_IRUSR);
2102MODULE_PARM_DESC(viafb_display_hardware_layout,
2103        "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2104
2105module_param(viafb_second_size, int, S_IRUSR);
2106MODULE_PARM_DESC(viafb_second_size,
2107        "Set secondary device memory size");
2108
2109module_param(viafb_dual_fb, int, S_IRUSR);
2110MODULE_PARM_DESC(viafb_dual_fb,
2111        "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2112
2113module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2114MODULE_PARM_DESC(viafb_platform_epia_dvi,
2115        "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2116
2117module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2118MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2119        "Turn on/off flag of dual edge panel.(Default = OFF)");
2120
2121module_param(viafb_bus_width, int, S_IRUSR);
2122MODULE_PARM_DESC(viafb_bus_width,
2123        "Set bus width of panel.(Default = 12)");
2124
2125module_param(viafb_lcd_mode, int, S_IRUSR);
2126MODULE_PARM_DESC(viafb_lcd_mode,
2127        "Set Flat Panel mode(Default=OPENLDI)");
2128
2129module_param(viafb_lcd_port, charp, S_IRUSR);
2130MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2131
2132module_param(viafb_dvi_port, charp, S_IRUSR);
2133MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2134
2135MODULE_LICENSE("GPL");
2136#endif
2137