vmlfb: framebuffer driver for Intel Vermilion Range

Add the Intel Vermilion Range framebuffer support.
Signed-off-by: Alan Hourihane <alanh@tungstengraphics.com>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/Kconfig

@@ -882,6 +882,22 @@ config FB_I810_I2C
 	select FB_DDC
 	help
 
+config FB_LE80578
+	tristate "Intel LE80578 (Vermilion) support"
+	depends on FB && PCI && X86
+	select FB_MODE_HELPERS
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	help
+	  This driver supports the LE80578 (Vermilion Range) chipset
+
+config FB_CARILLO_RANCH
+	tristate "Intel Carillo Ranch support"
+	depends on FB_LE80578 && FB && PCI && X86
+	help
+	  This driver supports the LE80578 (Carillo Ranch) board
+
 config FB_INTEL
 	tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G support (EXPERIMENTAL)"
 	depends on FB && EXPERIMENTAL && PCI && X86

drivers/video/Makefile

@@ -56,6 +56,7 @@ obj-$(CONFIG_FB_IMSTT)            += imsttfb.o
 obj-$(CONFIG_FB_FM2)              += fm2fb.o
 obj-$(CONFIG_FB_CYBLA)            += cyblafb.o
 obj-$(CONFIG_FB_TRIDENT)          += tridentfb.o
+obj-$(CONFIG_FB_LE80578)          += vermilion/
 obj-$(CONFIG_FB_S3)               += s3fb.o
 obj-$(CONFIG_FB_STI)              += stifb.o
 obj-$(CONFIG_FB_FFB)              += ffb.o sbuslib.o

drivers/video/backlight/Kconfig

@@ -63,3 +63,11 @@ config BACKLIGHT_PROGEAR
 	help
 	  If you have a Frontpath ProGear say Y to enable the
 	  backlight driver.
+
+config BACKLIGHT_CARILLO_RANCH
+	tristate "Intel Carillo Ranch Backlight Driver"
+	depends on BACKLIGHT_CLASS_DEVICE && LCD_CLASS_DEVICE && PCI && X86 && FB_LE80578
+	default n
+	help
+	  If you have a Intel LE80578 (Carillo Ranch) say Y to enable the
+	  backlight driver.

drivers/video/backlight/Makefile

@@ -6,3 +6,4 @@ obj-$(CONFIG_BACKLIGHT_CORGI)	+= corgi_bl.o
 obj-$(CONFIG_BACKLIGHT_HP680)	+= hp680_bl.o
 obj-$(CONFIG_BACKLIGHT_LOCOMO)	+= locomolcd.o
 obj-$(CONFIG_BACKLIGHT_PROGEAR) += progear_bl.o
+obj-$(CONFIG_BACKLIGHT_CARILLO_RANCH) += cr_bllcd.o

drivers/video/backlight/cr_bllcd.c

+/*
+ * Copyright (c) Intel Corp. 2007.
+ * All Rights Reserved.
+ *
+ * Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ * develop this driver.
+ *
+ * This file is part of the Carillo Ranch video subsystem driver.
+ * The Carillo Ranch video subsystem driver is free software;
+ * you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The Carillo Ranch video subsystem driver is distributed
+ * in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Authors:
+ *   Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
+ *   Alan Hourihane <alanh-at-tungstengraphics-dot-com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+#include <linux/lcd.h>
+#include <linux/pci.h>
+#include <asm/uaccess.h>
+
+/* The LVDS- and panel power controls sits on the
+ * GPIO port of the ISA bridge.
+ */
+
+#define CRVML_DEVICE_LPC    0x27B8
+#define CRVML_REG_GPIOBAR   0x48
+#define CRVML_REG_GPIOEN    0x4C
+#define CRVML_GPIOEN_BIT    (1 << 4)
+#define CRVML_PANEL_PORT    0x38
+#define CRVML_LVDS_ON       0x00000001
+#define CRVML_PANEL_ON      0x00000002
+#define CRVML_BACKLIGHT_OFF 0x00000004
+
+/* The PLL Clock register sits on Host bridge */
+#define CRVML_DEVICE_MCH   0x5001
+#define CRVML_REG_MCHBAR   0x44
+#define CRVML_REG_MCHEN    0x54
+#define CRVML_MCHEN_BIT    (1 << 28)
+#define CRVML_MCHMAP_SIZE  4096
+#define CRVML_REG_CLOCK    0xc3c
+#define CRVML_CLOCK_SHIFT  8
+#define CRVML_CLOCK_MASK   0x00000f00
+
+static struct pci_dev *lpc_dev;
+static u32 gpio_bar;
+
+struct cr_panel {
+	struct backlight_device *cr_backlight_device;
+	struct lcd_device *cr_lcd_device;
+};
+
+static int cr_backlight_set_intensity(struct backlight_device *bd)
+{
+	int intensity = bd->props.brightness;
+	u32 addr = gpio_bar + CRVML_PANEL_PORT;
+	u32 cur = inl(addr);
+
+	if (bd->props.power == FB_BLANK_UNBLANK)
+		intensity = FB_BLANK_UNBLANK;
+	if (bd->props.fb_blank == FB_BLANK_UNBLANK)
+		intensity = FB_BLANK_UNBLANK;
+	if (bd->props.power == FB_BLANK_POWERDOWN)
+		intensity = FB_BLANK_POWERDOWN;
+	if (bd->props.fb_blank == FB_BLANK_POWERDOWN)
+		intensity = FB_BLANK_POWERDOWN;
+
+	if (intensity == FB_BLANK_UNBLANK) { /* FULL ON */
+		cur &= ~CRVML_BACKLIGHT_OFF;
+		outl(cur, addr);
+	} else if (intensity == FB_BLANK_POWERDOWN) { /* OFF */
+		cur |= CRVML_BACKLIGHT_OFF;
+		outl(cur, addr);
+	} /* anything else, don't bother */
+
+	return 0;
+}
+
+static int cr_backlight_get_intensity(struct backlight_device *bd)
+{
+	u32 addr = gpio_bar + CRVML_PANEL_PORT;
+	u32 cur = inl(addr);
+	u8 intensity;
+
+	if (cur & CRVML_BACKLIGHT_OFF)
+		intensity = FB_BLANK_POWERDOWN;
+	else
+		intensity = FB_BLANK_UNBLANK;
+
+	return intensity;
+}
+
+static struct backlight_ops cr_backlight_ops = {
+	.get_brightness = cr_backlight_get_intensity,
+	.update_status = cr_backlight_set_intensity,
+};
+
+static void cr_panel_on(void)
+{
+	u32 addr = gpio_bar + CRVML_PANEL_PORT;
+	u32 cur = inl(addr);
+
+	if (!(cur & CRVML_PANEL_ON)) {
+		/* Make sure LVDS controller is down. */
+		if (cur & 0x00000001) {
+			cur &= ~CRVML_LVDS_ON;
+			outl(cur, addr);
+		}
+		/* Power up Panel */
+		schedule_timeout(HZ / 10);
+		cur |= CRVML_PANEL_ON;
+		outl(cur, addr);
+	}
+
+	/* Power up LVDS controller */
+
+	if (!(cur & CRVML_LVDS_ON)) {
+		schedule_timeout(HZ / 10);
+		outl(cur | CRVML_LVDS_ON, addr);
+	}
+}
+
+static void cr_panel_off(void)
+{
+	u32 addr = gpio_bar + CRVML_PANEL_PORT;
+	u32 cur = inl(addr);
+
+	/* Power down LVDS controller first to avoid high currents */
+	if (cur & CRVML_LVDS_ON) {
+		cur &= ~CRVML_LVDS_ON;
+		outl(cur, addr);
+	}
+	if (cur & CRVML_PANEL_ON) {
+		schedule_timeout(HZ / 10);
+		outl(cur & ~CRVML_PANEL_ON, addr);
+	}
+}
+
+static int cr_lcd_set_power(struct lcd_device *ld, int power)
+{
+	if (power == FB_BLANK_UNBLANK)
+		cr_panel_on();
+	if (power == FB_BLANK_POWERDOWN)
+		cr_panel_off();
+
+	return 0;
+}
+
+static struct lcd_ops cr_lcd_ops = {
+	.set_power = cr_lcd_set_power,
+};
+
+static int cr_backlight_probe(struct platform_device *pdev)
+{
+	struct cr_panel *crp;
+	u8 dev_en;
+
+	crp = kzalloc(sizeof(crp), GFP_KERNEL);
+	if (crp == NULL)
+		return -ENOMEM;
+
+	lpc_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
+					CRVML_DEVICE_LPC, NULL);
+	if (!lpc_dev) {
+		printk("INTEL CARILLO RANCH LPC not found.\n");
+		return -ENODEV;
+	}
+
+	pci_read_config_byte(lpc_dev, CRVML_REG_GPIOEN, &dev_en);
+	if (!(dev_en & CRVML_GPIOEN_BIT)) {
+		printk(KERN_ERR
+		       "Carillo Ranch GPIO device was not enabled.\n");
+		pci_dev_put(lpc_dev);
+		return -ENODEV;
+	}
+
+	crp->cr_backlight_device = backlight_device_register("cr-backlight",
+							     &pdev->dev, NULL,
+							     &cr_backlight_ops);
+	if (IS_ERR(crp->cr_backlight_device)) {
+		pci_dev_put(lpc_dev);
+		return PTR_ERR(crp->cr_backlight_device);
+	}
+
+	crp->cr_lcd_device = lcd_device_register("cr-lcd",
+							&pdev->dev,
+							&cr_lcd_ops);
+
+	if (IS_ERR(crp->cr_lcd_device)) {
+		pci_dev_put(lpc_dev);
+		return PTR_ERR(crp->cr_backlight_device);
+	}
+
+	pci_read_config_dword(lpc_dev, CRVML_REG_GPIOBAR,
+			      &gpio_bar);
+	gpio_bar &= ~0x3F;
+
+	crp->cr_backlight_device->props.power = FB_BLANK_UNBLANK;
+	crp->cr_backlight_device->props.brightness = 0;
+	crp->cr_backlight_device->props.max_brightness = 0;
+	cr_backlight_set_intensity(crp->cr_backlight_device);
+
+	cr_lcd_set_power(crp->cr_lcd_device, FB_BLANK_UNBLANK);
+
+	platform_set_drvdata(pdev, crp);
+
+	return 0;
+}
+
+static int cr_backlight_remove(struct platform_device *pdev)
+{
+	struct cr_panel *crp = platform_get_drvdata(pdev);
+	crp->cr_backlight_device->props.power = FB_BLANK_POWERDOWN;
+	crp->cr_backlight_device->props.brightness = 0;
+	crp->cr_backlight_device->props.max_brightness = 0;
+	cr_backlight_set_intensity(crp->cr_backlight_device);
+	cr_lcd_set_power(crp->cr_lcd_device, FB_BLANK_POWERDOWN);
+	backlight_device_unregister(crp->cr_backlight_device);
+	lcd_device_unregister(crp->cr_lcd_device);
+	pci_dev_put(lpc_dev);
+
+	return 0;
+}
+
+static struct platform_driver cr_backlight_driver = {
+	.probe = cr_backlight_probe,
+	.remove = cr_backlight_remove,
+	.driver = {
+		   .name = "cr_backlight",
+		   },
+};
+
+static struct platform_device *crp;
+
+static int __init cr_backlight_init(void)
+{
+	int ret = platform_driver_register(&cr_backlight_driver);
+
+	if (!ret) {
+		crp = platform_device_alloc("cr_backlight", -1);
+		if (!crp)
+			return -ENOMEM;
+
+		ret = platform_device_add(crp);
+
+		if (ret) {
+			platform_device_put(crp);
+			platform_driver_unregister(&cr_backlight_driver);
+		}
+	}
+
+	printk("Carillo Ranch Backlight Driver Initialized.\n");
+
+	return ret;
+}
+
+static void __exit cr_backlight_exit(void)
+{
+	platform_device_unregister(crp);
+	platform_driver_unregister(&cr_backlight_driver);
+}
+
+module_init(cr_backlight_init);
+module_exit(cr_backlight_exit);
+
+MODULE_AUTHOR("Tungsten Graphics Inc.");
+MODULE_DESCRIPTION("Carillo Ranch Backlight Driver");
+MODULE_LICENSE("GPL");

drivers/video/vermilion/Makefile

+obj-$(CONFIG_FB_LE80578) += vmlfb.o
+obj-$(CONFIG_FB_CARILLO_RANCH) += crvml.o
+
+vmlfb-objs := vermilion.o
+crvml-objs := cr_pll.o

drivers/video/vermilion/cr_pll.c

+/*
+ * Copyright (c) Intel Corp. 2007.
+ * All Rights Reserved.
+ *
+ * Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ * develop this driver.
+ *
+ * This file is part of the Carillo Ranch video subsystem driver.
+ * The Carillo Ranch video subsystem driver is free software;
+ * you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The Carillo Ranch video subsystem driver is distributed
+ * in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Authors:
+ *   Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
+ *   Alan Hourihane <alanh-at-tungstengraphics-dot-com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include "vermilion.h"
+
+/* The PLL Clock register sits on Host bridge */
+#define CRVML_DEVICE_MCH   0x5001
+#define CRVML_REG_MCHBAR   0x44
+#define CRVML_REG_MCHEN    0x54
+#define CRVML_MCHEN_BIT    (1 << 28)
+#define CRVML_MCHMAP_SIZE  4096
+#define CRVML_REG_CLOCK    0xc3c
+#define CRVML_CLOCK_SHIFT  8
+#define CRVML_CLOCK_MASK   0x00000f00
+
+static struct pci_dev *mch_dev;
+static u32 mch_bar;
+static void __iomem *mch_regs_base;
+static u32 saved_clock;
+
+static const unsigned crvml_clocks[] = {
+	6750,
+	13500,
+	27000,
+	29700,
+	37125,
+	54000,
+	59400,
+	74250,
+	120000
+	    /*
+	     * There are more clocks, but they are disabled on the CR board.
+	     */
+};
+
+static const u32 crvml_clock_bits[] = {
+	0x0a,
+	0x09,
+	0x08,
+	0x07,
+	0x06,
+	0x05,
+	0x04,
+	0x03,
+	0x0b
+};
+
+static const unsigned crvml_num_clocks = ARRAY_SIZE(crvml_clocks);
+
+static int crvml_sys_restore(struct vml_sys *sys)
+{
+	void __iomem *clock_reg = mch_regs_base + CRVML_REG_CLOCK;
+
+	iowrite32(saved_clock, clock_reg);
+	ioread32(clock_reg);
+
+	return 0;
+}
+
+static int crvml_sys_save(struct vml_sys *sys)
+{
+	void __iomem *clock_reg = mch_regs_base + CRVML_REG_CLOCK;
+
+	saved_clock = ioread32(clock_reg);
+
+	return 0;
+}
+
+static int crvml_nearest_index(const struct vml_sys *sys, int clock)
+{
+	int i;
+	int cur_index = 0;
+	int cur_diff;
+	int diff;
+
+	cur_diff = clock - crvml_clocks[0];
+	cur_diff = (cur_diff < 0) ? -cur_diff : cur_diff;
+	for (i = 1; i < crvml_num_clocks; ++i) {
+		diff = clock - crvml_clocks[i];
+		diff = (diff < 0) ? -diff : diff;
+		if (diff < cur_diff) {
+			cur_index = i;
+			cur_diff = diff;
+		}
+	}
+	return cur_index;
+}
+
+static int crvml_nearest_clock(const struct vml_sys *sys, int clock)
+{
+	return crvml_clocks[crvml_nearest_index(sys, clock)];
+}
+
+static int crvml_set_clock(struct vml_sys *sys, int clock)
+{
+	void __iomem *clock_reg = mch_regs_base + CRVML_REG_CLOCK;
+	int index;
+	u32 clock_val;
+
+	index = crvml_nearest_index(sys, clock);
+
+	if (crvml_clocks[index] != clock)
+		return -EINVAL;
+
+	clock_val = ioread32(clock_reg) & ~CRVML_CLOCK_MASK;
+	clock_val = crvml_clock_bits[index] << CRVML_CLOCK_SHIFT;
+	iowrite32(clock_val, clock_reg);
+	ioread32(clock_reg);
+
+	return 0;
+}
+
+static struct vml_sys cr_pll_ops = {
+	.name = "Carillo Ranch",
+	.save = crvml_sys_save,
+	.restore = crvml_sys_restore,
+	.set_clock = crvml_set_clock,
+	.nearest_clock = crvml_nearest_clock,
+};
+
+static int __init cr_pll_init(void)
+{
+	int err;
+	u32 dev_en;
+
+	mch_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
+					CRVML_DEVICE_MCH, NULL);
+	if (!mch_dev) {
+		printk(KERN_ERR
+		       "Could not find Carillo Ranch MCH device.\n");
+		return -ENODEV;
+	}
+
+	pci_read_config_dword(mch_dev, CRVML_REG_MCHEN, &dev_en);
+	if (!(dev_en & CRVML_MCHEN_BIT)) {
+		printk(KERN_ERR
+		       "Carillo Ranch MCH device was not enabled.\n");
+		pci_dev_put(mch_dev);
+		return -ENODEV;
+	}
+
+	pci_read_config_dword(mch_dev, CRVML_REG_MCHBAR,
+			      &mch_bar);
+	mch_regs_base =
+	    ioremap_nocache(mch_bar, CRVML_MCHMAP_SIZE);
+	if (!mch_regs_base) {
+		printk(KERN_ERR
+		       "Carillo Ranch MCH device was not enabled.\n");
+		pci_dev_put(mch_dev);
+		return -ENODEV;
+	}
+
+	err = vmlfb_register_subsys(&cr_pll_ops);
+	if (err) {
+		printk(KERN_ERR
+		       "Carillo Ranch failed to initialize vml_sys.\n");
+		pci_dev_put(mch_dev);
+		return err;
+	}
+
+	return 0;
+}
+
+static void __exit cr_pll_exit(void)
+{
+	vmlfb_unregister_subsys(&cr_pll_ops);
+
+	iounmap(mch_regs_base);
+	pci_dev_put(mch_dev);
+}
+
+module_init(cr_pll_init);
+module_exit(cr_pll_exit);
+
+MODULE_AUTHOR("Tungsten Graphics Inc.");
+MODULE_DESCRIPTION("Carillo Ranch PLL Driver");
+MODULE_LICENSE("GPL");

drivers/video/vermilion/vermilion.h

+/*
+ * Copyright (c) Intel Corp. 2007.
+ * All Rights Reserved.
+ *
+ * Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ * develop this driver.
+ *
+ * This file is part of the Vermilion Range fb driver.
+ * The Vermilion Range fb driver is free software;
+ * you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The Vermilion Range fb driver is distributed
+ * in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Authors:
+ *   Thomas Hellstrm <thomas-at-tungstengraphics-dot-com>
+ */
+
+#ifndef _VERMILION_H_
+#define _VERMILION_H_
+
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/pci.h>
+#include <asm/atomic.h>
+#include <linux/mutex.h>
+
+#define VML_DEVICE_GPU 0x5002
+#define VML_DEVICE_VDC 0x5009
+
+#define VML_VRAM_AREAS 3
+#define VML_MAX_XRES 1024
+#define VML_MAX_YRES 768
+#define VML_MAX_XRES_VIRTUAL 1040
+
+/*
+ * Display controller registers:
+ */
+
+/* Display controller 10-bit color representation */
+
+#define VML_R_MASK                   0x3FF00000
+#define VML_R_SHIFT                  20
+#define VML_G_MASK                   0x000FFC00
+#define VML_G_SHIFT                  10
+#define VML_B_MASK                   0x000003FF
+#define VML_B_SHIFT                  0
+
+/* Graphics plane control */
+#define VML_DSPCCNTR                 0x00072180
+#define VML_GFX_ENABLE               0x80000000
+#define VML_GFX_GAMMABYPASS          0x40000000
+#define VML_GFX_ARGB1555             0x0C000000
+#define VML_GFX_RGB0888              0x18000000
+#define VML_GFX_ARGB8888             0x1C000000
+#define VML_GFX_ALPHACONST           0x02000000
+#define VML_GFX_ALPHAMULT            0x01000000
+#define VML_GFX_CONST_ALPHA          0x000000FF
+
+/* Graphics plane start address. Pixel aligned. */
+#define VML_DSPCADDR                 0x00072184
+
+/* Graphics plane stride register. */
+#define VML_DSPCSTRIDE               0x00072188
+
+/* Graphics plane position register. */
+#define VML_DSPCPOS                  0x0007218C
+#define VML_POS_YMASK                0x0FFF0000
+#define VML_POS_YSHIFT               16
+#define VML_POS_XMASK                0x00000FFF
+#define VML_POS_XSHIFT               0
+
+/* Graphics plane height and width */
+#define VML_DSPCSIZE                 0x00072190
+#define VML_SIZE_HMASK               0x0FFF0000
+#define VML_SIZE_HSHIFT              16
+#define VML_SISE_WMASK               0x00000FFF
+#define VML_SIZE_WSHIFT              0
+
+/* Graphics plane gamma correction lookup table registers (129 * 32 bits) */
+#define VML_DSPCGAMLUT               0x00072200
+
+/* Pixel video output configuration register */
+#define VML_PVOCONFIG                0x00061140
+#define VML_CONFIG_BASE              0x80000000
+#define VML_CONFIG_PIXEL_SWAP        0x04000000
+#define VML_CONFIG_DE_INV            0x01000000
+#define VML_CONFIG_HREF_INV          0x00400000
+#define VML_CONFIG_VREF_INV          0x00100000
+#define VML_CONFIG_CLK_INV           0x00040000
+#define VML_CONFIG_CLK_DIV2          0x00010000
+#define VML_CONFIG_ESTRB_INV         0x00008000
+
+/* Pipe A Horizontal total register */
+#define VML_HTOTAL_A                 0x00060000
+#define VML_HTOTAL_MASK              0x1FFF0000
+#define VML_HTOTAL_SHIFT             16
+#define VML_HTOTAL_VAL               8192
+#define VML_HACTIVE_MASK             0x000007FF
+#define VML_HACTIVE_SHIFT            0
+#define VML_HACTIVE_VAL              4096
+
+/* Pipe A Horizontal Blank register */
+#define VML_HBLANK_A                 0x00060004
+#define VML_HBLANK_END_MASK          0x1FFF0000
+#define VML_HBLANK_END_SHIFT         16
+#define VML_HBLANK_END_VAL           8192
+#define VML_HBLANK_START_MASK        0x00001FFF
+#define VML_HBLANK_START_SHIFT       0
+#define VML_HBLANK_START_VAL         8192
+
+/* Pipe A Horizontal Sync register */
+#define VML_HSYNC_A                  0x00060008
+#define VML_HSYNC_END_MASK           0x1FFF0000
+#define VML_HSYNC_END_SHIFT          16
+#define VML_HSYNC_END_VAL            8192
+#define VML_HSYNC_START_MASK         0x00001FFF
+#define VML_HSYNC_START_SHIFT        0
+#define VML_HSYNC_START_VAL          8192
+
+/* Pipe A Vertical total register */
+#define VML_VTOTAL_A                 0x0006000C
+#define VML_VTOTAL_MASK              0x1FFF0000
+#define VML_VTOTAL_SHIFT             16
+#define VML_VTOTAL_VAL               8192
+#define VML_VACTIVE_MASK             0x000007FF
+#define VML_VACTIVE_SHIFT            0
+#define VML_VACTIVE_VAL              4096
+
+/* Pipe A Vertical Blank register */
+#define VML_VBLANK_A                 0x00060010
+#define VML_VBLANK_END_MASK          0x1FFF0000
+#define VML_VBLANK_END_SHIFT         16
+#define VML_VBLANK_END_VAL           8192
+#define VML_VBLANK_START_MASK        0x00001FFF
+#define VML_VBLANK_START_SHIFT       0
+#define VML_VBLANK_START_VAL         8192
+
+/* Pipe A Vertical Sync register */
+#define VML_VSYNC_A                  0x00060014
+#define VML_VSYNC_END_MASK           0x1FFF0000
+#define VML_VSYNC_END_SHIFT          16
+#define VML_VSYNC_END_VAL            8192
+#define VML_VSYNC_START_MASK         0x00001FFF
+#define VML_VSYNC_START_SHIFT        0
+#define VML_VSYNC_START_VAL          8192
+
+/* Pipe A Source Image size (minus one - equal to active size)
+ * Programmable while pipe is enabled.
+ */
+#define VML_PIPEASRC                 0x0006001C
+#define VML_PIPEASRC_HMASK           0x0FFF0000
+#define VML_PIPEASRC_HSHIFT          16
+#define VML_PIPEASRC_VMASK           0x00000FFF
+#define VML_PIPEASRC_VSHIFT          0
+
+/* Pipe A Border Color Pattern register (10 bit color) */
+#define VML_BCLRPAT_A                0x00060020
+
+/* Pipe A Canvas Color register  (10 bit color) */
+#define VML_CANVSCLR_A               0x00060024
+
+/* Pipe A Configuration register */
+#define VML_PIPEACONF                0x00070008
+#define VML_PIPE_BASE                0x00000000
+#define VML_PIPE_ENABLE              0x80000000
+#define VML_PIPE_FORCE_BORDER        0x02000000
+#define VML_PIPE_PLANES_OFF          0x00080000
+#define VML_PIPE_ARGB_OUTPUT_MODE    0x00040000
+
+/* Pipe A FIFO setting */
+#define VML_DSPARB                   0x00070030
+#define VML_FIFO_DEFAULT             0x00001D9C
+
+/* MDVO rcomp status & pads control register */
+#define VML_RCOMPSTAT                0x00070048
+#define VML_MDVO_VDC_I_RCOMP         0x80000000
+#define VML_MDVO_POWERSAVE_OFF       0x00000008
+#define VML_MDVO_PAD_ENABLE          0x00000004
+#define VML_MDVO_PULLDOWN_ENABLE     0x00000001
+
+struct vml_par {
+	struct pci_dev *vdc;
+	u64 vdc_mem_base;
+	u64 vdc_mem_size;
+	char __iomem *vdc_mem;
+
+	struct pci_dev *gpu;
+	u64 gpu_mem_base;
+	u64 gpu_mem_size;
+	char __iomem *gpu_mem;
+
+	atomic_t refcount;
+};
+
+struct vram_area {
+	unsigned long logical;
+	unsigned long phys;
+	unsigned long size;
+	unsigned order;
+};
+
+struct vml_info {
+	struct fb_info info;
+	struct vml_par *par;
+	struct list_head head;
+	struct vram_area vram[VML_VRAM_AREAS];
+	u64 vram_start;
+	u64 vram_contig_size;
+	u32 num_areas;
+	void __iomem *vram_logical;
+	u32 pseudo_palette[16];
+	u32 stride;
+	u32 bytes_per_pixel;
+	atomic_t vmas;
+	int cur_blank_mode;
+	int pipe_disabled;
+};
+
+/*
+ * Subsystem
+ */
+
+struct vml_sys {
+	char *name;
+
+	/*
+	 * Save / Restore;
+	 */
+
+	int (*save) (struct vml_sys * sys);
+	int (*restore) (struct vml_sys * sys);
+
+	/*
+	 * PLL programming;
+	 */
+
+	int (*set_clock) (struct vml_sys * sys, int clock);
+	int (*nearest_clock) (const struct vml_sys * sys, int clock);
+};
+
+extern int vmlfb_register_subsys(struct vml_sys *sys);
+extern void vmlfb_unregister_subsys(struct vml_sys *sys);
+
+#define VML_READ32(_par, _offset) \
+	(ioread32((_par)->vdc_mem + (_offset)))
+#define VML_WRITE32(_par, _offset, _value)				\
+	iowrite32(_value, (_par)->vdc_mem + (_offset))
+
+#endif