viafbdev.c

   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_array_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_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			if (!viafb_mode1)
1943				return -ENOMEM;
1944		} else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1945			viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1946			if (!viafb_mode)
1947				return -ENOMEM;
1948		} else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1949			if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1950				return -EINVAL;
1951		} else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1952			if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1953				return -EINVAL;
1954		} else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1955			if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1956				return -EINVAL;
1957		} else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1958			if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1959				return -EINVAL;
1960		} else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1961			if (kstrtoint(this_opt + 21, 0,
1962				      &viafb_lcd_dsp_method) < 0)
1963				return -EINVAL;
1964		} else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1965			if (kstrtoint(this_opt + 19, 0,
1966				      &viafb_lcd_panel_id) < 0)
1967				return -EINVAL;
1968		} else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1969			if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
1970				return -EINVAL;
1971		} else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1972			if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
1973				return -EINVAL;
1974		} else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1975			viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1976			if (!viafb_active_dev)
1977				return -ENOMEM;
1978		} else if (!strncmp(this_opt,
1979			"viafb_display_hardware_layout=", 30)) {
1980			if (kstrtoint(this_opt + 30, 0,
1981				      &viafb_display_hardware_layout) < 0)
1982				return -EINVAL;
1983		} else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
1984			if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
1985				return -EINVAL;
1986		} else if (!strncmp(this_opt,
1987			"viafb_platform_epia_dvi=", 24)) {
1988			if (kstrtoint(this_opt + 24, 0,
1989				      &viafb_platform_epia_dvi) < 0)
1990				return -EINVAL;
1991		} else if (!strncmp(this_opt,
1992			"viafb_device_lcd_dualedge=", 26)) {
1993			if (kstrtoint(this_opt + 26, 0,
1994				      &viafb_device_lcd_dualedge) < 0)
1995				return -EINVAL;
1996		} else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
1997			if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
1998				return -EINVAL;
1999		} else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2000			if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2001				return -EINVAL;
2002		} else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2003			viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2004			if (!viafb_lcd_port)
2005				return -ENOMEM;
2006		} else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2007			viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2008			if (!viafb_dvi_port)
2009				return -ENOMEM;
2010		}
2011	}
2012	return 0;
2013}
2014#endif
2015
2016/*
2017 * These are called out of via-core for now.
2018 */
2019int __init viafb_init(void)
2020{
2021	u32 dummy_x, dummy_y;
2022	int r = 0;
2023
2024	if (machine_is_olpc())
2025		/* Apply XO-1.5-specific configuration. */
2026		viafb_lcd_panel_id = 23;
2027
2028#ifndef MODULE
2029	r = viafb_setup();
2030	if (r < 0)
2031		return r;
2032#endif
2033	if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2034		|| !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2035		|| parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2036		|| !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2037		|| viafb_bpp < 0 || viafb_bpp > 32
2038		|| viafb_bpp1 < 0 || viafb_bpp1 > 32
2039		|| parse_active_dev())
2040		return -EINVAL;
2041
2042	printk(KERN_INFO
2043       "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2044	       VERSION_MAJOR, VERSION_MINOR);
2045	return r;
2046}
2047
2048void __exit viafb_exit(void)
2049{
2050	DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2051}
2052
2053static struct fb_ops viafb_ops = {
2054	.owner = THIS_MODULE,
2055	.fb_open = viafb_open,
2056	.fb_release = viafb_release,
2057	__FB_DEFAULT_IOMEM_OPS_RDWR,
2058	.fb_check_var = viafb_check_var,
2059	.fb_set_par = viafb_set_par,
2060	.fb_setcolreg = viafb_setcolreg,
2061	.fb_pan_display = viafb_pan_display,
2062	.fb_blank = viafb_blank,
2063	.fb_fillrect = viafb_fillrect,
2064	.fb_copyarea = viafb_copyarea,
2065	.fb_imageblit = viafb_imageblit,
2066	.fb_cursor = viafb_cursor,
2067	.fb_ioctl = viafb_ioctl,
2068	.fb_sync = viafb_sync,
2069	__FB_DEFAULT_IOMEM_OPS_MMAP,
2070};
2071
2072
2073#ifdef MODULE
2074module_param(viafb_mode, charp, S_IRUSR);
2075MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2076
2077module_param(viafb_mode1, charp, S_IRUSR);
2078MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2079
2080module_param(viafb_bpp, int, S_IRUSR);
2081MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2082
2083module_param(viafb_bpp1, int, S_IRUSR);
2084MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2085
2086module_param(viafb_refresh, int, S_IRUSR);
2087MODULE_PARM_DESC(viafb_refresh,
2088	"Set CRT viafb_refresh rate (default = 60)");
2089
2090module_param(viafb_refresh1, int, S_IRUSR);
2091MODULE_PARM_DESC(viafb_refresh1,
2092	"Set CRT refresh rate (default = 60)");
2093
2094module_param(viafb_lcd_panel_id, int, S_IRUSR);
2095MODULE_PARM_DESC(viafb_lcd_panel_id,
2096	"Set Flat Panel type(Default=1024x768)");
2097
2098module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2099MODULE_PARM_DESC(viafb_lcd_dsp_method,
2100	"Set Flat Panel display scaling method.(Default=Expansion)");
2101
2102module_param(viafb_SAMM_ON, int, S_IRUSR);
2103MODULE_PARM_DESC(viafb_SAMM_ON,
2104	"Turn on/off flag of SAMM(Default=OFF)");
2105
2106module_param(viafb_accel, int, S_IRUSR);
2107MODULE_PARM_DESC(viafb_accel,
2108	"Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2109
2110module_param(viafb_active_dev, charp, S_IRUSR);
2111MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2112
2113module_param(viafb_display_hardware_layout, int, S_IRUSR);
2114MODULE_PARM_DESC(viafb_display_hardware_layout,
2115	"Display Hardware Layout (LCD Only, DVI Only...,etc)");
2116
2117module_param(viafb_second_size, int, S_IRUSR);
2118MODULE_PARM_DESC(viafb_second_size,
2119	"Set secondary device memory size");
2120
2121module_param(viafb_dual_fb, int, S_IRUSR);
2122MODULE_PARM_DESC(viafb_dual_fb,
2123	"Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2124
2125module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2126MODULE_PARM_DESC(viafb_platform_epia_dvi,
2127	"Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2128
2129module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2130MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2131	"Turn on/off flag of dual edge panel.(Default = OFF)");
2132
2133module_param(viafb_bus_width, int, S_IRUSR);
2134MODULE_PARM_DESC(viafb_bus_width,
2135	"Set bus width of panel.(Default = 12)");
2136
2137module_param(viafb_lcd_mode, int, S_IRUSR);
2138MODULE_PARM_DESC(viafb_lcd_mode,
2139	"Set Flat Panel mode(Default=OPENLDI)");
2140
2141module_param(viafb_lcd_port, charp, S_IRUSR);
2142MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2143
2144module_param(viafb_dvi_port, charp, S_IRUSR);
2145MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2146
2147MODULE_DESCRIPTION("VIA UniChrome (Pro) and Chrome9 display driver");
2148MODULE_LICENSE("GPL");
2149#endif