[ubicom32]: move new files out from platform support patch

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19815 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 779 insertions, 0 deletions

diff --git a/target/linux/ubicom32/files/drivers/video/ubicom32fb.c b/target/linux/ubicom32/files/drivers/video/ubicom32fb.c
new file mode 100644
index 0000000000..4193560f7c
--- /dev/null
+++ b/target/linux/ubicom32/files/drivers/video/ubicom32fb.c
@@ -0,0 +1,779 @@
+/*
+ * drivers/video/ubicom32fb.c
+ *	Ubicom32 frame buffer driver
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port 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 Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Ubicom32 implementation derived from (with many thanks):
+ *   arch/m68knommu
+ *   arch/blackfin
+ *   arch/parisc
+ */
+
+/*
+ * This driver was based on skeletonfb.c, Skeleton for a frame buffer device by
+ * Geert Uytterhoeven.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/ip5000.h>
+#include <asm/vdc_tio.h>
+#include <asm/ubicom32fb.h>
+
+#define DRIVER_NAME		"ubicom32fb"
+#define DRIVER_DESCRIPTION	"Ubicom32 frame buffer driver"
+
+#define PALETTE_ENTRIES_NO	16
+
+/*
+ * Option variables
+ *
+ * vram_size:	VRAM size in kilobytes, subject to alignment
+ */
+static int vram_size = 0;
+module_param(vram_size, int, 0);
+MODULE_PARM_DESC(vram, "VRAM size, in kilobytes to allocate, should be at least the size of one screen, subject to alignment");
+static int init_value = 0;
+module_param(init_value, int, 0);
+MODULE_PARM_DESC(init, "Initial value of the framebuffer (16-bit number).");
+
+/*
+ * fb_fix_screeninfo defines the non-changeable properties of the VDC, depending on what mode it is in.
+ */
+static struct fb_fix_screeninfo ubicom32fb_fix = {
+	.id =		"Ubicom32",
+	.type =		FB_TYPE_PACKED_PIXELS,
+	.visual =	FB_VISUAL_TRUECOLOR,
+	.accel =	FB_ACCEL_UBICOM32,
+};
+
+/*
+ * Filled in at probe time when we find out what the hardware supports
+ */
+static struct fb_var_screeninfo ubicom32fb_var;
+
+/*
+ * Private data structure
+ */
+struct ubicom32fb_drvdata {
+	struct fb_info			*fbinfo;
+	bool				cmap_alloc;
+
+	/*
+	 * The address of the framebuffer in memory
+	 */
+	void				*fb;
+	void				*fb_aligned;
+
+	/*
+	 * Total size of vram including alignment allowance
+	 */
+	u32				total_vram_size;
+
+	/*
+	 * Interrupt to set when changing registers
+	 */
+	u32				vp_int;
+
+	/*
+	 * Optional: Interrupt used by TIO to signal us
+	 */
+	u32				rx_int;
+
+	/*
+	 * Base address of the regs for VDC_TIO
+	 */
+	volatile struct vdc_tio_vp_regs	*regs;
+
+	/*
+	 * non-zero if we are in yuv mode
+	 */
+	u8_t				is_yuv;
+
+	/*
+	 * Fake palette of 16 colors
+	 */
+	u32				pseudo_palette[PALETTE_ENTRIES_NO];
+
+	/*
+	 * Wait queue and lock used to block when we need to wait
+	 * for something to happen.
+	 */
+	wait_queue_head_t		waitq;
+	struct mutex			lock;
+
+};
+
+/*
+ * ubicom32fb_set_next_frame
+ *	Sets the next frame buffer to display
+ *
+ * if sync is TRUE then this function will block until the hardware
+ * acknowledges the change
+ */
+static inline void ubicom32fb_set_next_frame(struct ubicom32fb_drvdata *ud, void *fb, u8_t sync)
+{
+	ud->regs->next_frame_flags = ud->is_yuv ? VDCTIO_NEXT_FRAME_FLAG_YUV : 0;
+	ud->regs->next_frame = (void *)((u32_t)fb | 1);
+
+	/*
+	 * If we have interrupts, then we can wait on it
+	 */
+	if (ud->rx_int != -1) {
+		DEFINE_WAIT(wait);
+		unsigned long flags;
+
+		spin_lock_irqsave(&ud->lock, flags);
+		prepare_to_wait(&ud->waitq, &wait, TASK_INTERRUPTIBLE);
+		spin_unlock_irqrestore(&ud->lock, flags);
+		schedule();
+		finish_wait(&ud->waitq, &wait);
+		return;
+	}
+
+	/*
+	 * No interrupt, we will just spin here
+	 */
+	while (sync && ((u32_t)ud->regs->next_frame & 1));
+}
+
+/*
+ * ubicom32fb_send_command
+ *	Sends a command/data pair to the VDC
+ */
+static inline void ubicom32fb_send_command(struct ubicom32fb_drvdata *ud, u16 command, u8_t block)
+{
+	ud->regs->command = command;
+	ubicom32_set_interrupt(ud->vp_int);
+	while (block && ud->regs->command);
+}
+
+/*
+ * ubicom32fb_ioctl
+ *	Handles any ioctls sent to us
+ */
+static int ubicom32fb_ioctl(struct fb_info *fbi, unsigned int cmd,
+		       unsigned long arg)
+{
+	struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)fbi->par;
+	void __user *argp = (void __user *)arg;
+	int retval = -EFAULT;
+
+	switch (cmd) {
+	case UBICOM32FB_IOCTL_SET_NEXT_FRAME_SYNC:
+		// check alignment, return -EINVAL if necessary
+		ubicom32fb_set_next_frame(ud, argp, 1);
+		retval = 0;
+		break;
+
+	case UBICOM32FB_IOCTL_SET_NEXT_FRAME:
+		// check alignment, return -EINVAL if necessary
+		ubicom32fb_set_next_frame(ud, argp, 0);
+		retval = 0;
+		break;
+
+	case UBICOM32FB_IOCTL_SET_MODE:
+		if (!(ud->regs->caps & VDCTIO_CAPS_SUPPORTS_SCALING)) {
+			break;
+		} else {
+			struct ubicom32fb_mode mode;
+			volatile struct vdc_tio_vp_regs *regs = ud->regs;
+			u32_t flags = 0;
+
+			if (copy_from_user(&mode, argp, sizeof(mode))) {
+				break;
+			}
+
+			regs->x_in = mode.width;
+			regs->y_in = mode.height;
+			regs->x_out = regs->xres;
+			regs->y_out = regs->yres;
+			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_SCAN_ORDER) {
+				flags |= VDCTIO_SCALE_FLAG_YUV_SCAN_ORDER;
+			}
+			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_BLOCK_ORDER) {
+				flags |= VDCTIO_SCALE_FLAG_YUV_BLOCK_ORDER;
+			}
+			ud->is_yuv = mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV;
+			if (ud->is_yuv) {
+				flags |= VDCTIO_SCALE_FLAG_YUV;
+			}
+			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_16_255) {
+				flags |= VDCTIO_SCALE_FLAG_VRANGE_16_255;
+			}
+			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_0_255) {
+				flags |= VDCTIO_SCALE_FLAG_VRANGE_0_255;
+			}
+			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VSUB) {
+				flags |= VDCTIO_SCALE_FLAG_VSUB;
+			}
+			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_2_1) {
+				flags |= VDCTIO_SCALE_FLAG_HSUB_2_1;
+			}
+			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_1_1) {
+				flags |= VDCTIO_SCALE_FLAG_HSUB_1_1;
+			}
+			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_SCALE_ENABLE) {
+				flags |= VDCTIO_SCALE_FLAG_ENABLE;
+			}
+			if (mode.next_frame) {
+				flags |= VDCTIO_SCALE_FLAG_SET_FRAME_BUFFER;
+				regs->next_frame = mode.next_frame;
+			}
+
+			regs->scale_flags = flags;
+			ubicom32fb_send_command(ud, VDCTIO_COMMAND_SET_SCALE_MODE, 1);
+			retval = 0;
+			break;
+		}
+
+	default:
+		retval = -ENOIOCTLCMD;
+		break;
+	}
+
+	return retval;
+}
+
+/*
+ * ubicom32fb_interrupt
+ *	Called by the OS when the TIO has set the rx_int
+ */
+static irqreturn_t ubicom32fb_interrupt(int vec, void *appdata)
+{
+	struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)appdata;
+
+	spin_lock(&ud->lock);
+	if (waitqueue_active(&ud->waitq)) {
+		wake_up(&ud->waitq);
+	}
+	spin_unlock(&ud->lock);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * ubicom32fb_pan_display
+ *	Pans the display to a given location.  Supports only y direction panning.
+ */
+static int ubicom32fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
+{
+	struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)fbi->par;
+	void *new_addr;
+
+	/*
+	 * Get the last y line that would be displayed.  Since we don't support YWRAP,
+	 * it must be less than our virtual y size.
+	 */
+	u32 lasty = var->yoffset + var->yres;
+	if (lasty > fbi->var.yres_virtual) {
+		/*
+		 * We would fall off the end of our frame buffer if we panned here.
+		 */
+		return -EINVAL;
+	}
+
+	if (var->xoffset) {
+		/*
+		 * We don't support panning in the x direction
+		 */
+		return -EINVAL;
+	}
+
+	/*
+	 * Everything looks sane, go ahead and pan
+	 *
+	 * We have to calculate a new address for the VDC to look at
+	 */
+	new_addr = ud->fb_aligned + (var->yoffset * fbi->fix.line_length);
+
+	/*
+	 * Send down the command.  The buffer will switch at the next vertical blank
+	 */
+	ubicom32fb_set_next_frame(ud, (void *)new_addr, 0);
+
+	return 0;
+}
+
+/*
+ * ubicom32fb_setcolreg
+ *	Sets a color in our virtual palette
+ */
+static int ubicom32fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi)
+{
+	u32 *palette = fbi->pseudo_palette;
+
+	if (regno >= PALETTE_ENTRIES_NO) {
+		return -EINVAL;
+	}
+
+	/*
+	 * We only use 8 bits from each color
+	 */
+	red >>= 8;
+	green >>= 8;
+	blue >>= 8;
+
+	/*
+	 * Convert any grayscale values
+	 */
+	if (fbi->var.grayscale) {
+		u16 gray = red + green + blue;
+		gray += (gray >> 2) + (gray >> 3) - (gray >> 7);
+		gray >>= 2;
+		if (gray > 255) {
+			gray = 255;
+		}
+		red = gray;
+		blue = gray;
+		green = gray;
+	}
+
+	palette[regno] = (red << fbi->var.red.offset) | (green << fbi->var.green.offset) |
+			 (blue << fbi->var.blue.offset);
+
+	return 0;
+}
+
+/*
+ * ubicom32fb_mmap
+ */
+static int ubicom32fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
+{
+	struct ubicom32fb_drvdata *drvdata = (struct ubicom32fb_drvdata *)info->par;
+
+	vma->vm_start = (unsigned long)(drvdata->fb_aligned);
+
+	vma->vm_end = vma->vm_start + info->fix.smem_len;
+
+	/* For those who don't understand how mmap works, go read
+	 *   Documentation/nommu-mmap.txt.
+	 * For those that do, you will know that the VM_MAYSHARE flag
+	 * must be set in the vma->vm_flags structure on noMMU
+	 *   Other flags can be set, and are documented in
+	 *   include/linux/mm.h
+	 */
+
+	vma->vm_flags |=  VM_MAYSHARE | VM_SHARED;
+
+	return 0;
+}
+
+/*
+ * ubicom32fb_blank
+ */
+static int ubicom32fb_blank(int blank_mode, struct fb_info *fbi)
+{
+	return 0;
+#if 0
+	struct ubicom32fb_drvdata *drvdata = to_ubicom32fb_drvdata(fbi);
+
+	switch (blank_mode) {
+	case FB_BLANK_UNBLANK:
+		/* turn on panel */
+		ubicom32fb_out_be32(drvdata, REG_CTRL, drvdata->reg_ctrl_default);
+		break;
+
+	case FB_BLANK_NORMAL:
+	case FB_BLANK_VSYNC_SUSPEND:
+	case FB_BLANK_HSYNC_SUSPEND:
+	case FB_BLANK_POWERDOWN:
+		/* turn off panel */
+		ubicom32fb_out_be32(drvdata, REG_CTRL, 0);
+	default:
+		break;
+
+	}
+	return 0; /* success */
+#endif
+}
+
+static struct fb_ops ubicom32fb_ops =
+{
+	.owner			= THIS_MODULE,
+	.fb_pan_display		= ubicom32fb_pan_display,
+	.fb_setcolreg		= ubicom32fb_setcolreg,
+	.fb_blank		= ubicom32fb_blank,
+	.fb_mmap		= ubicom32fb_mmap,
+	.fb_ioctl		= ubicom32fb_ioctl,
+	.fb_fillrect		= cfb_fillrect,
+	.fb_copyarea		= cfb_copyarea,
+	.fb_imageblit		= cfb_imageblit,
+};
+
+/*
+ * ubicom32fb_release
+ */
+static int ubicom32fb_release(struct device *dev)
+{
+	struct ubicom32fb_drvdata *ud = dev_get_drvdata(dev);
+
+#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
+	//ubicom32fb_blank(VESA_POWERDOWN, &drvdata->info);
+#endif
+
+	unregister_framebuffer(ud->fbinfo);
+
+	if (ud->cmap_alloc) {
+		fb_dealloc_cmap(&ud->fbinfo->cmap);
+	}
+
+	if (ud->fb) {
+		kfree(ud->fb);
+	}
+
+	if (ud->rx_int != -1) {
+		free_irq(ud->rx_int, ud);
+	}
+
+	/*
+	 * Turn off the display
+	 */
+	//ubicom32fb_out_be32(drvdata, REG_CTRL, 0);
+	//iounmap(drvdata->regs);
+
+	framebuffer_release(ud->fbinfo);
+	dev_set_drvdata(dev, NULL);
+
+	return 0;
+}
+
+/*
+ * ubicom32fb_platform_probe
+ */
+static int __init ubicom32fb_platform_probe(struct platform_device *pdev)
+{
+	struct ubicom32fb_drvdata *ud;
+	struct resource *irq_resource_rx;
+	struct resource *irq_resource_tx;
+	struct resource *mem_resource;
+	struct fb_info *fbinfo;
+	int rc;
+	size_t fbsize;
+	struct device *dev = &pdev->dev;
+	int offset;
+	struct vdc_tio_vp_regs *regs;
+
+	/*
+	 * Get our resources
+	 */
+	irq_resource_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!irq_resource_tx) {
+		dev_err(dev, "No tx IRQ resource assigned\n");
+		return -ENODEV;
+	}
+
+	irq_resource_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
+	if (!irq_resource_rx) {
+		dev_err(dev, "No rx IRQ resource assigned\n");
+		return -ENODEV;
+	}
+
+	mem_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!mem_resource || !mem_resource->start) {
+		dev_err(dev, "No mem resource assigned\n");
+		return -ENODEV;
+	}
+	regs = (struct vdc_tio_vp_regs *)mem_resource->start;
+	if (regs->version != VDCTIO_VP_VERSION) {
+		dev_err(dev, "VDCTIO is not compatible with this driver tio:%x drv:%x\n",
+			regs->version, VDCTIO_VP_VERSION);
+		return -ENODEV;
+	}
+
+	/*
+	 * This is the minimum VRAM size
+	 */
+	fbsize = regs->xres * regs->yres * (regs->bpp / 8);
+	if (!vram_size) {
+		vram_size = (fbsize + 1023) / 1024;
+	} else {
+		if (fbsize > (vram_size * 1024)) {
+			dev_err(dev, "Not enough VRAM for display, need >= %u bytes\n", fbsize);
+			return -ENOMEM; // should be ebadparam?
+		}
+	}
+
+	/*
+	 * Allocate the framebuffer instance + our private data
+	 */
+	fbinfo = framebuffer_alloc(sizeof(struct ubicom32fb_drvdata), &pdev->dev);
+	if (!fbinfo) {
+		dev_err(dev, "Not enough memory to allocate instance.\n");
+		return -ENOMEM;
+	}
+
+	/*
+	 * Fill in our private data.
+	 */
+	ud = (struct ubicom32fb_drvdata *)fbinfo->par;
+	ud->fbinfo = fbinfo;
+	ud->regs = (struct vdc_tio_vp_regs *)(mem_resource->start);
+	dev_set_drvdata(dev, ud);
+
+	ud->vp_int = irq_resource_tx->start;
+
+	/*
+	 * If we were provided an rx_irq then we need to init the appropriate
+	 * queues, locks, and functions.
+	 */
+	ud->rx_int = -1;
+	if (irq_resource_rx->start != DEVTREE_IRQ_NONE) {
+		init_waitqueue_head(&ud->waitq);
+		mutex_init(&ud->lock);
+		if (request_irq(ud->rx_int, ubicom32fb_interrupt, IRQF_SHARED, "ubicom32fb_rx", ud)) {
+			dev_err(dev, "Couldn't request rx IRQ\n");
+			rc = -ENOMEM;
+			goto fail;
+		}
+		ud->rx_int = irq_resource_rx->start;
+	}
+
+	/*
+	 * Allocate and align the requested amount of VRAM
+	 */
+	ud->total_vram_size = (vram_size * 1024) + regs->fb_align;
+	ud->fb = kmalloc(ud->total_vram_size, GFP_KERNEL);
+	if (ud->fb == NULL) {
+		dev_err(dev, "Couldn't allocate VRAM\n");
+		rc = -ENOMEM;
+		goto fail;
+	}
+
+	offset = (u32_t)ud->fb & (regs->fb_align - 1);
+	if (!offset) {
+		ud->fb_aligned = ud->fb;
+	} else {
+		offset = regs->fb_align - offset;
+		ud->fb_aligned = ud->fb + offset;
+	}
+
+	/*
+	 * Clear the entire frame buffer
+	 */
+	if (!init_value) {
+		memset(ud->fb_aligned, 0, vram_size * 1024);
+	} else {
+		unsigned short *p = ud->fb_aligned;
+		int i;
+		for (i = 0; i < ((vram_size * 1024) / sizeof(u16_t)); i++) {
+			*p++ = init_value;
+		}
+	}
+
+	/*
+	 * Fill in the fb_var_screeninfo structure
+	 */
+	memset(&ubicom32fb_var, 0, sizeof(ubicom32fb_var));
+	ubicom32fb_var.bits_per_pixel = regs->bpp;
+	ubicom32fb_var.red.offset = regs->rshift;
+	ubicom32fb_var.green.offset = regs->gshift;
+	ubicom32fb_var.blue.offset = regs->bshift;
+	ubicom32fb_var.red.length = regs->rbits;
+	ubicom32fb_var.green.length = regs->gbits;
+	ubicom32fb_var.blue.length = regs->bbits;
+	ubicom32fb_var.activate = FB_ACTIVATE_NOW;
+
+#if 0
+	/*
+	 * Turn on the display
+	 */
+	ud->reg_ctrl_default = REG_CTRL_ENABLE;
+	if (regs->rotate_screen)
+		ud->reg_ctrl_default |= REG_CTRL_ROTATE;
+	ubicom32fb_out_be32(ud, REG_CTRL, ud->reg_ctrl_default);
+#endif
+
+	/*
+	 * Fill in the fb_info structure
+	 */
+	ud->fbinfo->device = dev;
+	ud->fbinfo->screen_base = (void *)ud->fb_aligned;
+	ud->fbinfo->fbops = &ubicom32fb_ops;
+	ud->fbinfo->fix = ubicom32fb_fix;
+	ud->fbinfo->fix.smem_start = (u32)ud->fb_aligned;
+	ud->fbinfo->fix.smem_len = vram_size * 1024;
+	ud->fbinfo->fix.line_length = regs->xres * (regs->bpp / 8);
+	ud->fbinfo->fix.mmio_start = (u32)regs;
+	ud->fbinfo->fix.mmio_len = sizeof(struct vdc_tio_vp_regs);
+
+	/*
+	 * We support panning in the y direction only
+	 */
+	ud->fbinfo->fix.xpanstep = 0;
+	ud->fbinfo->fix.ypanstep = 1;
+
+	ud->fbinfo->pseudo_palette = ud->pseudo_palette;
+	ud->fbinfo->flags = FBINFO_DEFAULT;
+	ud->fbinfo->var = ubicom32fb_var;
+	ud->fbinfo->var.xres = regs->xres;
+	ud->fbinfo->var.yres = regs->yres;
+
+	/*
+	 * We cannot pan in the X direction, so xres_virtual is regs->xres
+	 * We can pan in the Y direction, so yres_virtual is vram_size / ud->fbinfo->fix.line_length
+	 */
+	ud->fbinfo->var.xres_virtual = regs->xres;
+	ud->fbinfo->var.yres_virtual = (vram_size * 1024) / ud->fbinfo->fix.line_length;
+
+	//ud->fbinfo->var.height = regs->height_mm;
+	//ud->fbinfo->var.width = regs->width_mm;
+
+	/*
+	 * Allocate a color map
+	 */
+	rc = fb_alloc_cmap(&ud->fbinfo->cmap, PALETTE_ENTRIES_NO, 0);
+	if (rc) {
+		dev_err(dev, "Fail to allocate colormap (%d entries)\n",
+			PALETTE_ENTRIES_NO);
+		goto fail;
+	}
+	ud->cmap_alloc = true;
+
+	/*
+	 * Register new frame buffer
+	 */
+	rc = register_framebuffer(ud->fbinfo);
+	if (rc) {
+		dev_err(dev, "Could not register frame buffer\n");
+		goto fail;
+	}
+
+	/*
+	 * Start up the VDC
+	 */
+	ud->regs->next_frame = ud->fb;
+	ubicom32fb_send_command(ud, VDCTIO_COMMAND_START, 0);
+
+	/*
+	 * Tell the log we are here
+	 */
+	dev_info(dev, "fbaddr=%p align=%p, size=%uKB screen(%ux%u) virt(%ux%u), regs=%p irqtx=%u irqrx=%u\n",
+		ud->fb, ud->fb_aligned, vram_size, ud->fbinfo->var.xres, ud->fbinfo->var.yres,
+		ud->fbinfo->var.xres_virtual, ud->fbinfo->var.yres_virtual, ud->regs,
+		irq_resource_tx->start, irq_resource_rx->start);
+
+	/*
+	 * Success
+	 */
+	return 0;
+
+fail:
+	ubicom32fb_release(dev);
+	return rc;
+}
+
+/*
+ * ubicom32fb_platform_remove
+ */
+static int ubicom32fb_platform_remove(struct platform_device *pdev)
+{
+	dev_info(&(pdev->dev), "Ubicom32 FB Driver Remove\n");
+	return ubicom32fb_release(&pdev->dev);
+}
+
+static struct platform_driver ubicom32fb_platform_driver = {
+	.probe		= ubicom32fb_platform_probe,
+	.remove		= ubicom32fb_platform_remove,
+	.driver = {
+		.name = DRIVER_NAME,
+		.owner = THIS_MODULE,
+	},
+};
+
+#ifndef MODULE
+/*
+ * ubicom32fb_setup
+ *	Process kernel boot options
+ */
+static int __init ubicom32fb_setup(char *options)
+{
+	char *this_opt;
+
+	if (!options || !*options) {
+		return 0;
+	}
+
+	while ((this_opt = strsep(&options, ",")) != NULL) {
+		if (!*this_opt) {
+			continue;
+		}
+
+		if (!strncmp(this_opt, "init_value=", 10)) {
+			init_value = simple_strtoul(this_opt + 11, NULL, 0);
+			continue;
+		}
+
+		if (!strncmp(this_opt, "vram_size=", 10)) {
+			vram_size = simple_strtoul(this_opt + 10, NULL, 0);
+			continue;
+		}
+	}
+	return 0;
+}
+#endif /* MODULE */
+
+/*
+ * ubicom32fb_init
+ */
+static int __devinit ubicom32fb_init(void)
+{
+#ifndef MODULE
+	/*
+	 * Get kernel boot options (in 'video=ubicom32fb:<options>')
+	 */
+	char *option = NULL;
+
+	if (fb_get_options(DRIVER_NAME, &option)) {
+		return -ENODEV;
+	}
+	ubicom32fb_setup(option);
+#endif /* MODULE */
+
+	return platform_driver_register(&ubicom32fb_platform_driver);
+}
+module_init(ubicom32fb_init);
+
+/*
+ * ubicom32fb_exit
+ */
+static void __exit ubicom32fb_exit(void)
+{
+	platform_driver_unregister(&ubicom32fb_platform_driver);
+}
+module_exit(ubicom32fb_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
+MODULE_DESCRIPTION(DRIVER_DESCRIPTION);