Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 2041 insertions, 0 deletions

diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c
new file mode 100644
index 0000000..be72c2c
--- /dev/null
+++ b/drivers/media/video/meye.c
@@ -0,0 +1,2041 @@
+/*
+ * Motion Eye video4linux driver for Sony Vaio PictureBook
+ *
+ * Copyright (C) 2001-2004 Stelian Pop <stelian@popies.net>
+ *
+ * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
+ *
+ * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
+ *
+ * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
+ *
+ * Some parts borrowed from various video4linux drivers, especially
+ * bttv-driver.c and zoran.c, see original files for credits.
+ *
+ * This program 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.
+ *
+ * This program 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 program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/videodev.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/vmalloc.h>
+
+#include "meye.h"
+#include <linux/meye.h>
+
+MODULE_AUTHOR("Stelian Pop <stelian@popies.net>");
+MODULE_DESCRIPTION("v4l/v4l2 driver for the MotionEye camera");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(MEYE_DRIVER_VERSION);
+
+/* force usage of V4L1 API */
+static int forcev4l1; /* = 0 */
+module_param(forcev4l1, int, 0644);
+MODULE_PARM_DESC(forcev4l1, "force use of V4L1 instead of V4L2");
+
+/* number of grab buffers */
+static unsigned int gbuffers = 2;
+module_param(gbuffers, int, 0444);
+MODULE_PARM_DESC(gbuffers, "number of capture buffers, default is 2 (32 max)");
+
+/* size of a grab buffer */
+static unsigned int gbufsize = MEYE_MAX_BUFSIZE;
+module_param(gbufsize, int, 0444);
+MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 614400"
+		 " (will be rounded up to a page multiple)");
+
+/* /dev/videoX registration number */
+static int video_nr = -1;
+module_param(video_nr, int, 0444);
+MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)");
+
+/* driver structure - only one possible */
+static struct meye meye;
+
+/****************************************************************************/
+/* Memory allocation routines (stolen from bttv-driver.c)                   */
+/****************************************************************************/
+static void *rvmalloc(unsigned long size)
+{
+	void *mem;
+	unsigned long adr;
+
+	size = PAGE_ALIGN(size);
+	mem = vmalloc_32(size);
+	if (mem) {
+		memset(mem, 0, size);
+		adr = (unsigned long) mem;
+		while (size > 0) {
+			SetPageReserved(vmalloc_to_page((void *)adr));
+			adr += PAGE_SIZE;
+			size -= PAGE_SIZE;
+		}
+	}
+	return mem;
+}
+
+static void rvfree(void * mem, unsigned long size)
+{
+	unsigned long adr;
+
+	if (mem) {
+		adr = (unsigned long) mem;
+		while ((long) size > 0) {
+			ClearPageReserved(vmalloc_to_page((void *)adr));
+			adr += PAGE_SIZE;
+			size -= PAGE_SIZE;
+		}
+		vfree(mem);
+	}
+}
+
+/*
+ * return a page table pointing to N pages of locked memory
+ *
+ * NOTE: The meye device expects DMA addresses on 32 bits, we build
+ * a table of 1024 entries = 4 bytes * 1024 = 4096 bytes.
+ */
+static int ptable_alloc(void)
+{
+	u32 *pt;
+	int i;
+
+	memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
+
+	/* give only 32 bit DMA addresses */
+	if (dma_set_mask(&meye.mchip_dev->dev, 0xffffffff))
+		return -1;
+
+	meye.mchip_ptable_toc = dma_alloc_coherent(&meye.mchip_dev->dev,
+						   PAGE_SIZE,
+						   &meye.mchip_dmahandle,
+						   GFP_KERNEL);
+	if (!meye.mchip_ptable_toc) {
+		meye.mchip_dmahandle = 0;
+		return -1;
+	}
+
+	pt = meye.mchip_ptable_toc;
+	for (i = 0; i < MCHIP_NB_PAGES; i++) {
+		dma_addr_t dma;
+		meye.mchip_ptable[i] = dma_alloc_coherent(&meye.mchip_dev->dev,
+							  PAGE_SIZE,
+							  &dma,
+							  GFP_KERNEL);
+		if (!meye.mchip_ptable[i]) {
+			int j;
+			pt = meye.mchip_ptable_toc;
+			for (j = 0; j < i; ++j) {
+				dma = (dma_addr_t) *pt;
+				dma_free_coherent(&meye.mchip_dev->dev,
+						  PAGE_SIZE,
+						  meye.mchip_ptable[j], dma);
+				pt++;
+			}
+			dma_free_coherent(&meye.mchip_dev->dev,
+					  PAGE_SIZE,
+					  meye.mchip_ptable_toc,
+					  meye.mchip_dmahandle);
+			meye.mchip_ptable_toc = NULL;
+			meye.mchip_dmahandle = 0;
+			return -1;
+		}
+		*pt = (u32) dma;
+		pt++;
+	}
+	return 0;
+}
+
+static void ptable_free(void)
+{
+	u32 *pt;
+	int i;
+
+	pt = meye.mchip_ptable_toc;
+	for (i = 0; i < MCHIP_NB_PAGES; i++) {
+		dma_addr_t dma = (dma_addr_t) *pt;
+		if (meye.mchip_ptable[i])
+			dma_free_coherent(&meye.mchip_dev->dev,
+					  PAGE_SIZE,
+					  meye.mchip_ptable[i], dma);
+		pt++;
+	}
+
+	if (meye.mchip_ptable_toc)
+		dma_free_coherent(&meye.mchip_dev->dev,
+				  PAGE_SIZE,
+				  meye.mchip_ptable_toc,
+				  meye.mchip_dmahandle);
+
+	memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
+	meye.mchip_ptable_toc = NULL;
+	meye.mchip_dmahandle = 0;
+}
+
+/* copy data from ptable into buf */
+static void ptable_copy(u8 *buf, int start, int size, int pt_pages)
+{
+	int i;
+
+	for (i = 0; i < (size / PAGE_SIZE) * PAGE_SIZE; i += PAGE_SIZE) {
+		memcpy(buf + i, meye.mchip_ptable[start++], PAGE_SIZE);
+		if (start >= pt_pages)
+			start = 0;
+	}
+	memcpy(buf + i, meye.mchip_ptable[start], size % PAGE_SIZE);
+}
+
+/****************************************************************************/
+/* JPEG tables at different qualities to load into the VRJ chip             */
+/****************************************************************************/
+
+/* return a set of quantisation tables based on a quality from 1 to 10 */
+static u16 *jpeg_quantisation_tables(int *length, int quality)
+{
+	static u16 jpeg_tables[][70] = { {
+		0xdbff, 0x4300, 0xff00, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff,
+		0xdbff, 0x4300, 0xff01, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff,
+	},
+	{
+		0xdbff, 0x4300, 0x5000, 0x3c37, 0x3c46, 0x5032, 0x4146, 0x5a46,
+		0x5055, 0x785f, 0x82c8, 0x6e78, 0x786e, 0xaff5, 0x91b9, 0xffc8,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff,
+		0xdbff, 0x4300, 0x5501, 0x5a5a, 0x6978, 0xeb78, 0x8282, 0xffeb,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+		0xffff, 0xffff, 0xffff,
+	},
+	{
+		0xdbff, 0x4300, 0x2800, 0x1e1c, 0x1e23, 0x2819, 0x2123, 0x2d23,
+		0x282b, 0x3c30, 0x4164, 0x373c, 0x3c37, 0x587b, 0x495d, 0x9164,
+		0x9980, 0x8f96, 0x8c80, 0xa08a, 0xe6b4, 0xa0c3, 0xdaaa, 0x8aad,
+		0xc88c, 0xcbff, 0xeeda, 0xfff5, 0xffff, 0xc19b, 0xffff, 0xfaff,
+		0xe6ff, 0xfffd, 0xfff8,
+		0xdbff, 0x4300, 0x2b01, 0x2d2d, 0x353c, 0x763c, 0x4141, 0xf876,
+		0x8ca5, 0xf8a5, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
+		0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
+		0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
+		0xf8f8, 0xf8f8, 0xfff8,
+	},
+	{
+		0xdbff, 0x4300, 0x1b00, 0x1412, 0x1417, 0x1b11, 0x1617, 0x1e17,
+		0x1b1c, 0x2820, 0x2b42, 0x2528, 0x2825, 0x3a51, 0x303d, 0x6042,
+		0x6555, 0x5f64, 0x5d55, 0x6a5b, 0x9978, 0x6a81, 0x9071, 0x5b73,
+		0x855d, 0x86b5, 0x9e90, 0xaba3, 0xabad, 0x8067, 0xc9bc, 0xa6ba,
+		0x99c7, 0xaba8, 0xffa4,
+		0xdbff, 0x4300, 0x1c01, 0x1e1e, 0x2328, 0x4e28, 0x2b2b, 0xa44e,
+		0x5d6e, 0xa46e, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
+		0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
+		0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
+		0xa4a4, 0xa4a4, 0xffa4,
+	},
+	{
+		0xdbff, 0x4300, 0x1400, 0x0f0e, 0x0f12, 0x140d, 0x1012, 0x1712,
+		0x1415, 0x1e18, 0x2132, 0x1c1e, 0x1e1c, 0x2c3d, 0x242e, 0x4932,
+		0x4c40, 0x474b, 0x4640, 0x5045, 0x735a, 0x5062, 0x6d55, 0x4556,
+		0x6446, 0x6588, 0x776d, 0x817b, 0x8182, 0x604e, 0x978d, 0x7d8c,
+		0x7396, 0x817e, 0xff7c,
+		0xdbff, 0x4300, 0x1501, 0x1717, 0x1a1e, 0x3b1e, 0x2121, 0x7c3b,
+		0x4653, 0x7c53, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
+		0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
+		0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
+		0x7c7c, 0x7c7c, 0xff7c,
+	},
+	{
+		0xdbff, 0x4300, 0x1000, 0x0c0b, 0x0c0e, 0x100a, 0x0d0e, 0x120e,
+		0x1011, 0x1813, 0x1a28, 0x1618, 0x1816, 0x2331, 0x1d25, 0x3a28,
+		0x3d33, 0x393c, 0x3833, 0x4037, 0x5c48, 0x404e, 0x5744, 0x3745,
+		0x5038, 0x516d, 0x5f57, 0x6762, 0x6768, 0x4d3e, 0x7971, 0x6470,
+		0x5c78, 0x6765, 0xff63,
+		0xdbff, 0x4300, 0x1101, 0x1212, 0x1518, 0x2f18, 0x1a1a, 0x632f,
+		0x3842, 0x6342, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
+		0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
+		0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
+		0x6363, 0x6363, 0xff63,
+	},
+	{
+		0xdbff, 0x4300, 0x0d00, 0x0a09, 0x0a0b, 0x0d08, 0x0a0b, 0x0e0b,
+		0x0d0e, 0x130f, 0x1520, 0x1213, 0x1312, 0x1c27, 0x171e, 0x2e20,
+		0x3129, 0x2e30, 0x2d29, 0x332c, 0x4a3a, 0x333e, 0x4636, 0x2c37,
+		0x402d, 0x4157, 0x4c46, 0x524e, 0x5253, 0x3e32, 0x615a, 0x505a,
+		0x4a60, 0x5251, 0xff4f,
+		0xdbff, 0x4300, 0x0e01, 0x0e0e, 0x1113, 0x2613, 0x1515, 0x4f26,
+		0x2d35, 0x4f35, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
+		0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
+		0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
+		0x4f4f, 0x4f4f, 0xff4f,
+	},
+	{
+		0xdbff, 0x4300, 0x0a00, 0x0707, 0x0708, 0x0a06, 0x0808, 0x0b08,
+		0x0a0a, 0x0e0b, 0x1018, 0x0d0e, 0x0e0d, 0x151d, 0x1116, 0x2318,
+		0x251f, 0x2224, 0x221f, 0x2621, 0x372b, 0x262f, 0x3429, 0x2129,
+		0x3022, 0x3141, 0x3934, 0x3e3b, 0x3e3e, 0x2e25, 0x4944, 0x3c43,
+		0x3748, 0x3e3d, 0xff3b,
+		0xdbff, 0x4300, 0x0a01, 0x0b0b, 0x0d0e, 0x1c0e, 0x1010, 0x3b1c,
+		0x2228, 0x3b28, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
+		0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
+		0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
+		0x3b3b, 0x3b3b, 0xff3b,
+	},
+	{
+		0xdbff, 0x4300, 0x0600, 0x0504, 0x0506, 0x0604, 0x0506, 0x0706,
+		0x0607, 0x0a08, 0x0a10, 0x090a, 0x0a09, 0x0e14, 0x0c0f, 0x1710,
+		0x1814, 0x1718, 0x1614, 0x1a16, 0x251d, 0x1a1f, 0x231b, 0x161c,
+		0x2016, 0x202c, 0x2623, 0x2927, 0x292a, 0x1f19, 0x302d, 0x282d,
+		0x2530, 0x2928, 0xff28,
+		0xdbff, 0x4300, 0x0701, 0x0707, 0x080a, 0x130a, 0x0a0a, 0x2813,
+		0x161a, 0x281a, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
+		0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
+		0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
+		0x2828, 0x2828, 0xff28,
+	},
+	{
+		0xdbff, 0x4300, 0x0300, 0x0202, 0x0203, 0x0302, 0x0303, 0x0403,
+		0x0303, 0x0504, 0x0508, 0x0405, 0x0504, 0x070a, 0x0607, 0x0c08,
+		0x0c0a, 0x0b0c, 0x0b0a, 0x0d0b, 0x120e, 0x0d10, 0x110e, 0x0b0e,
+		0x100b, 0x1016, 0x1311, 0x1514, 0x1515, 0x0f0c, 0x1817, 0x1416,
+		0x1218, 0x1514, 0xff14,
+		0xdbff, 0x4300, 0x0301, 0x0404, 0x0405, 0x0905, 0x0505, 0x1409,
+		0x0b0d, 0x140d, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
+		0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
+		0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
+		0x1414, 0x1414, 0xff14,
+	},
+	{
+		0xdbff, 0x4300, 0x0100, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0101, 0x0101, 0xff01,
+		0xdbff, 0x4300, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0101, 0x0101, 0xff01,
+	} };
+
+	if (quality < 0 || quality > 10) {
+		printk(KERN_WARNING
+		       "meye: invalid quality level %d - using 8\n", quality);
+		quality = 8;
+	}
+
+	*length = ARRAY_SIZE(jpeg_tables[quality]);
+	return jpeg_tables[quality];
+}
+
+/* return a generic set of huffman tables */
+static u16 *jpeg_huffman_tables(int *length)
+{
+	static u16 tables[] = {
+		0xC4FF, 0xB500, 0x0010, 0x0102, 0x0303, 0x0402, 0x0503, 0x0405,
+		0x0004, 0x0100, 0x017D, 0x0302, 0x0400, 0x0511, 0x2112, 0x4131,
+		0x1306, 0x6151, 0x2207, 0x1471, 0x8132, 0xA191, 0x2308, 0xB142,
+		0x15C1, 0xD152, 0x24F0, 0x6233, 0x8272, 0x0A09, 0x1716, 0x1918,
+		0x251A, 0x2726, 0x2928, 0x342A, 0x3635, 0x3837, 0x3A39, 0x4443,
+		0x4645, 0x4847, 0x4A49, 0x5453, 0x5655, 0x5857, 0x5A59, 0x6463,
+		0x6665, 0x6867, 0x6A69, 0x7473, 0x7675, 0x7877, 0x7A79, 0x8483,
+		0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998, 0xA29A,
+		0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6, 0xB9B8,
+		0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4, 0xD7D6,
+		0xD9D8, 0xE1DA, 0xE3E2, 0xE5E4, 0xE7E6, 0xE9E8, 0xF1EA, 0xF3F2,
+		0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
+		0xC4FF, 0xB500, 0x0011, 0x0102, 0x0402, 0x0304, 0x0704, 0x0405,
+		0x0004, 0x0201, 0x0077, 0x0201, 0x1103, 0x0504, 0x3121, 0x1206,
+		0x5141, 0x6107, 0x1371, 0x3222, 0x0881, 0x4214, 0xA191, 0xC1B1,
+		0x2309, 0x5233, 0x15F0, 0x7262, 0x0AD1, 0x2416, 0xE134, 0xF125,
+		0x1817, 0x1A19, 0x2726, 0x2928, 0x352A, 0x3736, 0x3938, 0x433A,
+		0x4544, 0x4746, 0x4948, 0x534A, 0x5554, 0x5756, 0x5958, 0x635A,
+		0x6564, 0x6766, 0x6968, 0x736A, 0x7574, 0x7776, 0x7978, 0x827A,
+		0x8483, 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998,
+		0xA29A, 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6,
+		0xB9B8, 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4,
+		0xD7D6, 0xD9D8, 0xE2DA, 0xE4E3, 0xE6E5, 0xE8E7, 0xEAE9, 0xF3F2,
+		0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
+		0xC4FF, 0x1F00, 0x0000, 0x0501, 0x0101, 0x0101, 0x0101, 0x0000,
+		0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
+		0xFF0B,
+		0xC4FF, 0x1F00, 0x0001, 0x0103, 0x0101, 0x0101, 0x0101, 0x0101,
+		0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
+		0xFF0B
+	};
+
+	*length = ARRAY_SIZE(tables);
+	return tables;
+}
+
+/****************************************************************************/
+/* MCHIP low-level functions                                                */
+/****************************************************************************/
+
+/* returns the horizontal capture size */
+static inline int mchip_hsize(void)
+{
+	return meye.params.subsample ? 320 : 640;
+}
+
+/* returns the vertical capture size */
+static inline int mchip_vsize(void)
+{
+	return meye.params.subsample ? 240 : 480;
+}
+
+/* waits for a register to be available */
+static void mchip_sync(int reg)
+{
+	u32 status;
+	int i;
+
+	if (reg == MCHIP_MM_FIFO_DATA) {
+		for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
+			status = readl(meye.mchip_mmregs +
+				       MCHIP_MM_FIFO_STATUS);
+			if (!(status & MCHIP_MM_FIFO_WAIT)) {
+				printk(KERN_WARNING "meye: fifo not ready\n");
+				return;
+			}
+			if (status & MCHIP_MM_FIFO_READY)
+				return;
+			udelay(1);
+		}
+	} else if (reg > 0x80) {
+		u32 mask = (reg < 0x100) ? MCHIP_HIC_STATUS_MCC_RDY
+					 : MCHIP_HIC_STATUS_VRJ_RDY;
+		for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
+			status = readl(meye.mchip_mmregs + MCHIP_HIC_STATUS);
+			if (status & mask)
+				return;
+			udelay(1);
+		}
+	} else
+		return;
+	printk(KERN_WARNING
+	       "meye: mchip_sync() timeout on reg 0x%x status=0x%x\n",
+	       reg, status);
+}
+
+/* sets a value into the register */
+static inline void mchip_set(int reg, u32 v)
+{
+	mchip_sync(reg);
+	writel(v, meye.mchip_mmregs + reg);
+}
+
+/* get the register value */
+static inline u32 mchip_read(int reg)
+{
+	mchip_sync(reg);
+	return readl(meye.mchip_mmregs + reg);
+}
+
+/* wait for a register to become a particular value */
+static inline int mchip_delay(u32 reg, u32 v)
+{
+	int n = 10;
+	while (--n && mchip_read(reg) != v)
+		udelay(1);
+	return n;
+}
+
+/* setup subsampling */
+static void mchip_subsample(void)
+{
+	mchip_set(MCHIP_MCC_R_SAMPLING, meye.params.subsample);
+	mchip_set(MCHIP_MCC_R_XRANGE, mchip_hsize());
+	mchip_set(MCHIP_MCC_R_YRANGE, mchip_vsize());
+	mchip_set(MCHIP_MCC_B_XRANGE, mchip_hsize());
+	mchip_set(MCHIP_MCC_B_YRANGE, mchip_vsize());
+	mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
+}
+
+/* set the framerate into the mchip */
+static void mchip_set_framerate(void)
+{
+	mchip_set(MCHIP_HIC_S_RATE, meye.params.framerate);
+}
+
+/* load some huffman and quantisation tables into the VRJ chip ready
+   for JPEG compression */
+static void mchip_load_tables(void)
+{
+	int i;
+	int length;
+	u16 *tables;
+
+	tables = jpeg_huffman_tables(&length);
+	for (i = 0; i < length; i++)
+		writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
+
+	tables = jpeg_quantisation_tables(&length, meye.params.quality);
+	for (i = 0; i < length; i++)
+		writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
+}
+
+/* setup the VRJ parameters in the chip */
+static void mchip_vrj_setup(u8 mode)
+{
+	mchip_set(MCHIP_VRJ_BUS_MODE, 5);
+	mchip_set(MCHIP_VRJ_SIGNAL_ACTIVE_LEVEL, 0x1f);
+	mchip_set(MCHIP_VRJ_PDAT_USE, 1);
+	mchip_set(MCHIP_VRJ_IRQ_FLAG, 0xa0);
+	mchip_set(MCHIP_VRJ_MODE_SPECIFY, mode);
+	mchip_set(MCHIP_VRJ_NUM_LINES, mchip_vsize());
+	mchip_set(MCHIP_VRJ_NUM_PIXELS, mchip_hsize());
+	mchip_set(MCHIP_VRJ_NUM_COMPONENTS, 0x1b);
+	mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_LO, 0xFFFF);
+	mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_HI, 0xFFFF);
+	mchip_set(MCHIP_VRJ_COMP_DATA_FORMAT, 0xC);
+	mchip_set(MCHIP_VRJ_RESTART_INTERVAL, 0);
+	mchip_set(MCHIP_VRJ_SOF1, 0x601);
+	mchip_set(MCHIP_VRJ_SOF2, 0x1502);
+	mchip_set(MCHIP_VRJ_SOF3, 0x1503);
+	mchip_set(MCHIP_VRJ_SOF4, 0x1596);
+	mchip_set(MCHIP_VRJ_SOS, 0x0ed0);
+
+	mchip_load_tables();
+}
+
+/* sets the DMA parameters into the chip */
+static void mchip_dma_setup(dma_addr_t dma_addr)
+{
+	int i;
+
+	mchip_set(MCHIP_MM_PT_ADDR, (u32)dma_addr);
+	for (i = 0; i < 4; i++)
+		mchip_set(MCHIP_MM_FIR(i), 0);
+	meye.mchip_fnum = 0;
+}
+
+/* setup for DMA transfers - also zeros the framebuffer */
+static int mchip_dma_alloc(void)
+{
+	if (!meye.mchip_dmahandle)
+		if (ptable_alloc())
+			return -1;
+	return 0;
+}
+
+/* frees the DMA buffer */
+static void mchip_dma_free(void)
+{
+	if (meye.mchip_dmahandle) {
+		mchip_dma_setup(0);
+		ptable_free();
+	}
+}
+
+/* stop any existing HIC action and wait for any dma to complete then
+   reset the dma engine */
+static void mchip_hic_stop(void)
+{
+	int i, j;
+
+	meye.mchip_mode = MCHIP_HIC_MODE_NOOP;
+	if (!(mchip_read(MCHIP_HIC_STATUS) & MCHIP_HIC_STATUS_BUSY))
+		return;
+	for (i = 0; i < 20; ++i) {
+		mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_STOP);
+		mchip_delay(MCHIP_HIC_CMD, 0);
+		for (j = 0; j < 100; ++j) {
+			if (mchip_delay(MCHIP_HIC_STATUS,
+					MCHIP_HIC_STATUS_IDLE))
+				return;
+			msleep(1);
+		}
+		printk(KERN_ERR "meye: need to reset HIC!\n");
+
+		mchip_set(MCHIP_HIC_CTL, MCHIP_HIC_CTL_SOFT_RESET);
+		msleep(250);
+	}
+	printk(KERN_ERR "meye: resetting HIC hanged!\n");
+}
+
+/****************************************************************************/
+/* MCHIP frame processing functions                                         */
+/****************************************************************************/
+
+/* get the next ready frame from the dma engine */
+static u32 mchip_get_frame(void)
+{
+	u32 v;
+
+	v = mchip_read(MCHIP_MM_FIR(meye.mchip_fnum));
+	return v;
+}
+
+/* frees the current frame from the dma engine */
+static void mchip_free_frame(void)
+{
+	mchip_set(MCHIP_MM_FIR(meye.mchip_fnum), 0);
+	meye.mchip_fnum++;
+	meye.mchip_fnum %= 4;
+}
+
+/* read one frame from the framebuffer assuming it was captured using
+   a uncompressed transfer */
+static void mchip_cont_read_frame(u32 v, u8 *buf, int size)
+{
+	int pt_id;
+
+	pt_id = (v >> 17) & 0x3FF;
+
+	ptable_copy(buf, pt_id, size, MCHIP_NB_PAGES);
+}
+
+/* read a compressed frame from the framebuffer */
+static int mchip_comp_read_frame(u32 v, u8 *buf, int size)
+{
+	int pt_start, pt_end, trailer;
+	int fsize;
+	int i;
+
+	pt_start = (v >> 19) & 0xFF;
+	pt_end = (v >> 11) & 0xFF;
+	trailer = (v >> 1) & 0x3FF;
+
+	if (pt_end < pt_start)
+		fsize = (MCHIP_NB_PAGES_MJPEG - pt_start) * PAGE_SIZE +
+			pt_end * PAGE_SIZE + trailer * 4;
+	else
+		fsize = (pt_end - pt_start) * PAGE_SIZE + trailer * 4;
+
+	if (fsize > size) {
+		printk(KERN_WARNING "meye: oversized compressed frame %d\n",
+		       fsize);
+		return -1;
+	}
+
+	ptable_copy(buf, pt_start, fsize, MCHIP_NB_PAGES_MJPEG);
+
+#ifdef MEYE_JPEG_CORRECTION
+
+	/* Some mchip generated jpeg frames are incorrect. In most
+	 * (all ?) of those cases, the final EOI (0xff 0xd9) marker
+	 * is not present at the end of the frame.
+	 *
+	 * Since adding the final marker is not enough to restore
+	 * the jpeg integrity, we drop the frame.
+	 */
+
+	for (i = fsize - 1; i > 0 && buf[i] == 0xff; i--) ;
+
+	if (i < 2 || buf[i - 1] != 0xff || buf[i] != 0xd9)
+		return -1;
+
+#endif
+
+	return fsize;
+}
+
+/* take a picture into SDRAM */
+static void mchip_take_picture(void)
+{
+	int i;
+
+	mchip_hic_stop();
+	mchip_subsample();
+	mchip_dma_setup(meye.mchip_dmahandle);
+
+	mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_CAP);
+	mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+	mchip_delay(MCHIP_HIC_CMD, 0);
+
+	for (i = 0; i < 100; ++i) {
+		if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
+			break;
+		msleep(1);
+	}
+}
+
+/* dma a previously taken picture into a buffer */
+static void mchip_get_picture(u8 *buf, int bufsize)
+{
+	u32 v;
+	int i;
+
+	mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_OUT);
+	mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+	mchip_delay(MCHIP_HIC_CMD, 0);
+	for (i = 0; i < 100; ++i) {
+		if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
+			break;
+		msleep(1);
+	}
+	for (i = 0; i < 4; ++i) {
+		v = mchip_get_frame();
+		if (v & MCHIP_MM_FIR_RDY) {
+			mchip_cont_read_frame(v, buf, bufsize);
+			break;
+		}
+		mchip_free_frame();
+	}
+}
+
+/* start continuous dma capture */
+static void mchip_continuous_start(void)
+{
+	mchip_hic_stop();
+	mchip_subsample();
+	mchip_set_framerate();
+	mchip_dma_setup(meye.mchip_dmahandle);
+
+	meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
+
+	mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_OUT);
+	mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+	mchip_delay(MCHIP_HIC_CMD, 0);
+}
+
+/* compress one frame into a buffer */
+static int mchip_compress_frame(u8 *buf, int bufsize)
+{
+	u32 v;
+	int len = -1, i;
+
+	mchip_vrj_setup(0x3f);
+	udelay(50);
+
+	mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_COMP);
+	mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+	mchip_delay(MCHIP_HIC_CMD, 0);
+	for (i = 0; i < 100; ++i) {
+		if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
+			break;
+		msleep(1);
+	}
+
+	for (i = 0; i < 4; ++i) {
+		v = mchip_get_frame();
+		if (v & MCHIP_MM_FIR_RDY) {
+			len = mchip_comp_read_frame(v, buf, bufsize);
+			break;
+		}
+		mchip_free_frame();
+	}
+	return len;
+}
+
+#if 0
+/* uncompress one image into a buffer */
+static int mchip_uncompress_frame(u8 *img, int imgsize, u8 *buf, int bufsize)
+{
+	mchip_vrj_setup(0x3f);
+	udelay(50);
+
+	mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_DECOMP);
+	mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+	mchip_delay(MCHIP_HIC_CMD, 0);
+
+	return mchip_comp_read_frame(buf, bufsize);
+}
+#endif
+
+/* start continuous compressed capture */
+static void mchip_cont_compression_start(void)
+{
+	mchip_hic_stop();
+	mchip_vrj_setup(0x3f);
+	mchip_subsample();
+	mchip_set_framerate();
+	mchip_dma_setup(meye.mchip_dmahandle);
+
+	meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
+
+	mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_COMP);
+	mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+	mchip_delay(MCHIP_HIC_CMD, 0);
+}
+
+/****************************************************************************/
+/* Interrupt handling                                                       */
+/****************************************************************************/
+
+static irqreturn_t meye_irq(int irq, void *dev_id, struct pt_regs *regs)
+{
+	u32 v;
+	int reqnr;
+	static int sequence = 0;
+
+	v = mchip_read(MCHIP_MM_INTA);
+
+	if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_OUT &&
+	    meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
+		return IRQ_NONE;
+
+again:
+	v = mchip_get_frame();
+	if (!(v & MCHIP_MM_FIR_RDY))
+		return IRQ_HANDLED;
+
+	if (meye.mchip_mode == MCHIP_HIC_MODE_CONT_OUT) {
+		if (kfifo_get(meye.grabq, (unsigned char *)&reqnr,
+			      sizeof(int)) != sizeof(int)) {
+			mchip_free_frame();
+			return IRQ_HANDLED;
+		}
+		mchip_cont_read_frame(v, meye.grab_fbuffer + gbufsize * reqnr,
+				      mchip_hsize() * mchip_vsize() * 2);
+		meye.grab_buffer[reqnr].size = mchip_hsize() * mchip_vsize() * 2;
+		meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
+		do_gettimeofday(&meye.grab_buffer[reqnr].timestamp);
+		meye.grab_buffer[reqnr].sequence = sequence++;
+		kfifo_put(meye.doneq, (unsigned char *)&reqnr, sizeof(int));
+		wake_up_interruptible(&meye.proc_list);
+	} else {
+		int size;
+		size = mchip_comp_read_frame(v, meye.grab_temp, gbufsize);
+		if (size == -1) {
+			mchip_free_frame();
+			goto again;
+		}
+		if (kfifo_get(meye.grabq, (unsigned char *)&reqnr,
+			      sizeof(int)) != sizeof(int)) {
+			mchip_free_frame();
+			goto again;
+		}
+		memcpy(meye.grab_fbuffer + gbufsize * reqnr, meye.grab_temp,
+		       size);
+		meye.grab_buffer[reqnr].size = size;
+		meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
+		do_gettimeofday(&meye.grab_buffer[reqnr].timestamp);
+		meye.grab_buffer[reqnr].sequence = sequence++;
+		kfifo_put(meye.doneq, (unsigned char *)&reqnr, sizeof(int));
+		wake_up_interruptible(&meye.proc_list);
+	}
+	mchip_free_frame();
+	goto again;
+}
+
+/****************************************************************************/
+/* video4linux integration                                                  */
+/****************************************************************************/
+
+static int meye_open(struct inode *inode, struct file *file)
+{
+	int i, err;
+
+	err = video_exclusive_open(inode, file);
+	if (err < 0)
+		return err;
+
+	mchip_hic_stop();
+
+	if (mchip_dma_alloc()) {
+		printk(KERN_ERR "meye: mchip framebuffer allocation failed\n");
+		video_exclusive_release(inode, file);
+		return -ENOBUFS;
+	}
+
+	for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
+		meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
+	kfifo_reset(meye.grabq);
+	kfifo_reset(meye.doneq);
+	return 0;
+}
+
+static int meye_release(struct inode *inode, struct file *file)
+{
+	mchip_hic_stop();
+	mchip_dma_free();
+	video_exclusive_release(inode, file);
+	return 0;
+}
+
+static int meye_do_ioctl(struct inode *inode, struct file *file,
+			 unsigned int cmd, void *arg)
+{
+	switch (cmd) {
+
+	case VIDIOCGCAP: {
+		struct video_capability *b = arg;
+		strcpy(b->name,meye.video_dev->name);
+		b->type = VID_TYPE_CAPTURE;
+		b->channels = 1;
+		b->audios = 0;
+		b->maxwidth = 640;
+		b->maxheight = 480;
+		b->minwidth = 320;
+		b->minheight = 240;
+		break;
+	}
+
+	case VIDIOCGCHAN: {
+		struct video_channel *v = arg;
+		v->flags = 0;
+		v->tuners = 0;
+		v->type = VIDEO_TYPE_CAMERA;
+		if (v->channel != 0)
+			return -EINVAL;
+		strcpy(v->name,"Camera");
+		break;
+	}
+
+	case VIDIOCSCHAN: {
+		struct video_channel *v = arg;
+		if (v->channel != 0)
+			return -EINVAL;
+		break;
+	}
+
+	case VIDIOCGPICT: {
+		struct video_picture *p = arg;
+		*p = meye.picture;
+		break;
+	}
+
+	case VIDIOCSPICT: {
+		struct video_picture *p = arg;
+		if (p->depth != 16)
+			return -EINVAL;
+		if (p->palette != VIDEO_PALETTE_YUV422)
+			return -EINVAL;
+		down(&meye.lock);
+		sonypi_camera_command(SONYPI_COMMAND_SETCAMERABRIGHTNESS,
+				      p->brightness >> 10);
+		sonypi_camera_command(SONYPI_COMMAND_SETCAMERAHUE,
+				      p->hue >> 10);
+		sonypi_camera_command(SONYPI_COMMAND_SETCAMERACOLOR,
+				      p->colour >> 10);
+		sonypi_camera_command(SONYPI_COMMAND_SETCAMERACONTRAST,
+				      p->contrast >> 10);
+		meye.picture = *p;
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOCSYNC: {
+		int *i = arg;
+		int unused;
+
+		if (*i < 0 || *i >= gbuffers)
+			return -EINVAL;
+
+		down(&meye.lock);
+
+		switch (meye.grab_buffer[*i].state) {
+
+		case MEYE_BUF_UNUSED:
+			up(&meye.lock);
+			return -EINVAL;
+		case MEYE_BUF_USING:
+			if (file->f_flags & O_NONBLOCK) {
+				up(&meye.lock);
+				return -EAGAIN;
+			}
+			if (wait_event_interruptible(meye.proc_list,
+						     (meye.grab_buffer[*i].state != MEYE_BUF_USING))) {
+				up(&meye.lock);
+				return -EINTR;
+			}
+			/* fall through */
+		case MEYE_BUF_DONE:
+			meye.grab_buffer[*i].state = MEYE_BUF_UNUSED;
+			kfifo_get(meye.doneq, (unsigned char *)&unused, sizeof(int));
+		}
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOCMCAPTURE: {
+		struct video_mmap *vm = arg;
+		int restart = 0;
+
+		if (vm->frame >= gbuffers || vm->frame < 0)
+			return -EINVAL;
+		if (vm->format != VIDEO_PALETTE_YUV422)
+			return -EINVAL;
+		if (vm->height * vm->width * 2 > gbufsize)
+			return -EINVAL;
+		if (!meye.grab_fbuffer)
+			return -EINVAL;
+		if (meye.grab_buffer[vm->frame].state != MEYE_BUF_UNUSED)
+			return -EBUSY;
+
+		down(&meye.lock);
+		if (vm->width == 640 && vm->height == 480) {
+			if (meye.params.subsample) {
+				meye.params.subsample = 0;
+				restart = 1;
+			}
+		} else if (vm->width == 320 && vm->height == 240) {
+			if (!meye.params.subsample) {
+				meye.params.subsample = 1;
+				restart = 1;
+			}
+		} else {
+			up(&meye.lock);
+			return -EINVAL;
+		}
+
+		if (restart || meye.mchip_mode != MCHIP_HIC_MODE_CONT_OUT)
+			mchip_continuous_start();
+		meye.grab_buffer[vm->frame].state = MEYE_BUF_USING;
+		kfifo_put(meye.grabq, (unsigned char *)&vm->frame, sizeof(int));
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOCGMBUF: {
+		struct video_mbuf *vm = arg;
+		int i;
+
+		memset(vm, 0 , sizeof(*vm));
+		vm->size = gbufsize * gbuffers;
+		vm->frames = gbuffers;
+		for (i = 0; i < gbuffers; i++)
+			vm->offsets[i] = i * gbufsize;
+		break;
+	}
+
+	case MEYEIOC_G_PARAMS: {
+		struct meye_params *p = arg;
+		*p = meye.params;
+		break;
+	}
+
+	case MEYEIOC_S_PARAMS: {
+		struct meye_params *jp = arg;
+		if (jp->subsample > 1)
+			return -EINVAL;
+		if (jp->quality > 10)
+			return -EINVAL;
+		if (jp->sharpness > 63 || jp->agc > 63 || jp->picture > 63)
+			return -EINVAL;
+		if (jp->framerate > 31)
+			return -EINVAL;
+		down(&meye.lock);
+		if (meye.params.subsample != jp->subsample ||
+		    meye.params.quality != jp->quality)
+			mchip_hic_stop();	/* need restart */
+		meye.params = *jp;
+		sonypi_camera_command(SONYPI_COMMAND_SETCAMERASHARPNESS,
+				      meye.params.sharpness);
+		sonypi_camera_command(SONYPI_COMMAND_SETCAMERAAGC,
+				      meye.params.agc);
+		sonypi_camera_command(SONYPI_COMMAND_SETCAMERAPICTURE,
+				      meye.params.picture);
+		up(&meye.lock);
+		break;
+	}
+
+	case MEYEIOC_QBUF_CAPT: {
+		int *nb = arg;
+
+		if (!meye.grab_fbuffer)
+			return -EINVAL;
+		if (*nb >= gbuffers)
+			return -EINVAL;
+		if (*nb < 0) {
+			/* stop capture */
+			mchip_hic_stop();
+			return 0;
+		}
+		if (meye.grab_buffer[*nb].state != MEYE_BUF_UNUSED)
+			return -EBUSY;
+		down(&meye.lock);
+		if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
+			mchip_cont_compression_start();
+		meye.grab_buffer[*nb].state = MEYE_BUF_USING;
+		kfifo_put(meye.grabq, (unsigned char *)nb, sizeof(int));
+		up(&meye.lock);
+		break;
+	}
+
+	case MEYEIOC_SYNC: {
+		int *i = arg;
+		int unused;
+
+		if (*i < 0 || *i >= gbuffers)
+			return -EINVAL;
+
+		down(&meye.lock);
+		switch (meye.grab_buffer[*i].state) {
+
+		case MEYE_BUF_UNUSED:
+			up(&meye.lock);
+			return -EINVAL;
+		case MEYE_BUF_USING:
+			if (file->f_flags & O_NONBLOCK) {
+				up(&meye.lock);
+				return -EAGAIN;
+			}
+			if (wait_event_interruptible(meye.proc_list,
+						     (meye.grab_buffer[*i].state != MEYE_BUF_USING))) {
+				up(&meye.lock);
+				return -EINTR;
+			}
+			/* fall through */
+		case MEYE_BUF_DONE:
+			meye.grab_buffer[*i].state = MEYE_BUF_UNUSED;
+			kfifo_get(meye.doneq, (unsigned char *)&unused, sizeof(int));
+		}
+		*i = meye.grab_buffer[*i].size;
+		up(&meye.lock);
+		break;
+	}
+
+	case MEYEIOC_STILLCAPT: {
+
+		if (!meye.grab_fbuffer)
+			return -EINVAL;
+		if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
+			return -EBUSY;
+		down(&meye.lock);
+		meye.grab_buffer[0].state = MEYE_BUF_USING;
+		mchip_take_picture();
+		mchip_get_picture(
+			meye.grab_fbuffer,
+			mchip_hsize() * mchip_vsize() * 2);
+		meye.grab_buffer[0].state = MEYE_BUF_DONE;
+		up(&meye.lock);
+		break;
+	}
+
+	case MEYEIOC_STILLJCAPT: {
+		int *len = arg;
+
+		if (!meye.grab_fbuffer)
+			return -EINVAL;
+		if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
+			return -EBUSY;
+		down(&meye.lock);
+		meye.grab_buffer[0].state = MEYE_BUF_USING;
+		*len = -1;
+		while (*len == -1) {
+			mchip_take_picture();
+			*len = mchip_compress_frame(meye.grab_fbuffer, gbufsize);
+		}
+		meye.grab_buffer[0].state = MEYE_BUF_DONE;
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOC_QUERYCAP: {
+		struct v4l2_capability *cap = arg;
+
+		if (forcev4l1)
+			return -EINVAL;
+
+		memset(cap, 0, sizeof(*cap));
+		strcpy(cap->driver, "meye");
+		strcpy(cap->card, "meye");
+		sprintf(cap->bus_info, "PCI:%s", pci_name(meye.mchip_dev));
+		cap->version = (MEYE_DRIVER_MAJORVERSION << 8) +
+			       MEYE_DRIVER_MINORVERSION;
+		cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
+				    V4L2_CAP_STREAMING;
+		break;
+	}
+
+	case VIDIOC_ENUMINPUT: {
+		struct v4l2_input *i = arg;
+
+		if (i->index != 0)
+			return -EINVAL;
+		memset(i, 0, sizeof(*i));
+		i->index = 0;
+		strcpy(i->name, "Camera");
+		i->type = V4L2_INPUT_TYPE_CAMERA;
+		break;
+	}
+
+	case VIDIOC_G_INPUT: {
+		int *i = arg;
+
+		*i = 0;
+		break;
+	}
+
+	case VIDIOC_S_INPUT: {
+		int *i = arg;
+
+		if (*i != 0)
+			return -EINVAL;
+		break;
+	}
+
+	case VIDIOC_QUERYCTRL: {
+		struct v4l2_queryctrl *c = arg;
+
+		switch (c->id) {
+
+		case V4L2_CID_BRIGHTNESS:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "Brightness");
+			c->minimum = 0;
+			c->maximum = 63;
+			c->step = 1;
+			c->default_value = 32;
+			c->flags = 0;
+			break;
+		case V4L2_CID_HUE:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "Hue");
+			c->minimum = 0;
+			c->maximum = 63;
+			c->step = 1;
+			c->default_value = 32;
+			c->flags = 0;
+			break;
+		case V4L2_CID_CONTRAST:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "Contrast");
+			c->minimum = 0;
+			c->maximum = 63;
+			c->step = 1;
+			c->default_value = 32;
+			c->flags = 0;
+			break;
+		case V4L2_CID_SATURATION:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "Saturation");
+			c->minimum = 0;
+			c->maximum = 63;
+			c->step = 1;
+			c->default_value = 32;
+			c->flags = 0;
+			break;
+		case V4L2_CID_AGC:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "Agc");
+			c->minimum = 0;
+			c->maximum = 63;
+			c->step = 1;
+			c->default_value = 48;
+			c->flags = 0;
+			break;
+		case V4L2_CID_SHARPNESS:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "Sharpness");
+			c->minimum = 0;
+			c->maximum = 63;
+			c->step = 1;
+			c->default_value = 32;
+			c->flags = 0;
+			break;
+		case V4L2_CID_PICTURE:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "Picture");
+			c->minimum = 0;
+			c->maximum = 63;
+			c->step = 1;
+			c->default_value = 0;
+			c->flags = 0;
+			break;
+		case V4L2_CID_JPEGQUAL:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "JPEG quality");
+			c->minimum = 0;
+			c->maximum = 10;
+			c->step = 1;
+			c->default_value = 8;
+			c->flags = 0;
+			break;
+		case V4L2_CID_FRAMERATE:
+			c->type = V4L2_CTRL_TYPE_INTEGER;
+			strcpy(c->name, "Framerate");
+			c->minimum = 0;
+			c->maximum = 31;
+			c->step = 1;
+			c->default_value = 0;
+			c->flags = 0;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	}
+
+	case VIDIOC_S_CTRL: {
+		struct v4l2_control *c = arg;
+
+		down(&meye.lock);
+		switch (c->id) {
+		case V4L2_CID_BRIGHTNESS:
+			sonypi_camera_command(
+				SONYPI_COMMAND_SETCAMERABRIGHTNESS, c->value);
+			meye.picture.brightness = c->value << 10;
+			break;
+		case V4L2_CID_HUE:
+			sonypi_camera_command(
+				SONYPI_COMMAND_SETCAMERAHUE, c->value);
+			meye.picture.hue = c->value << 10;
+			break;
+		case V4L2_CID_CONTRAST:
+			sonypi_camera_command(
+				SONYPI_COMMAND_SETCAMERACONTRAST, c->value);
+			meye.picture.contrast = c->value << 10;
+			break;
+		case V4L2_CID_SATURATION:
+			sonypi_camera_command(
+				SONYPI_COMMAND_SETCAMERACOLOR, c->value);
+			meye.picture.colour = c->value << 10;
+			break;
+		case V4L2_CID_AGC:
+			sonypi_camera_command(
+				SONYPI_COMMAND_SETCAMERAAGC, c->value);
+			meye.params.agc = c->value;
+			break;
+		case V4L2_CID_SHARPNESS:
+			sonypi_camera_command(
+				SONYPI_COMMAND_SETCAMERASHARPNESS, c->value);
+			meye.params.sharpness = c->value;
+			break;
+		case V4L2_CID_PICTURE:
+			sonypi_camera_command(
+				SONYPI_COMMAND_SETCAMERAPICTURE, c->value);
+			meye.params.picture = c->value;
+			break;
+		case V4L2_CID_JPEGQUAL:
+			meye.params.quality = c->value;
+			break;
+		case V4L2_CID_FRAMERATE:
+			meye.params.framerate = c->value;
+			break;
+		default:
+			up(&meye.lock);
+			return -EINVAL;
+		}
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOC_G_CTRL: {
+		struct v4l2_control *c = arg;
+
+		down(&meye.lock);
+		switch (c->id) {
+		case V4L2_CID_BRIGHTNESS:
+			c->value = meye.picture.brightness >> 10;
+			break;
+		case V4L2_CID_HUE:
+			c->value = meye.picture.hue >> 10;
+			break;
+		case V4L2_CID_CONTRAST:
+			c->value = meye.picture.contrast >> 10;
+			break;
+		case V4L2_CID_SATURATION:
+			c->value = meye.picture.colour >> 10;
+			break;
+		case V4L2_CID_AGC:
+			c->value = meye.params.agc;
+			break;
+		case V4L2_CID_SHARPNESS:
+			c->value = meye.params.sharpness;
+			break;
+		case V4L2_CID_PICTURE:
+			c->value = meye.params.picture;
+			break;
+		case V4L2_CID_JPEGQUAL:
+			c->value = meye.params.quality;
+			break;
+		case V4L2_CID_FRAMERATE:
+			c->value = meye.params.framerate;
+			break;
+		default:
+			up(&meye.lock);
+			return -EINVAL;
+		}
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOC_ENUM_FMT: {
+		struct v4l2_fmtdesc *f = arg;
+
+		if (f->index > 1)
+			return -EINVAL;
+		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+			return -EINVAL;
+		if (f->index == 0) {
+			/* standard YUV 422 capture */
+			memset(f, 0, sizeof(*f));
+			f->index = 0;
+			f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+			f->flags = 0;
+			strcpy(f->description, "YUV422");
+			f->pixelformat = V4L2_PIX_FMT_YUYV;
+		} else {
+			/* compressed MJPEG capture */
+			memset(f, 0, sizeof(*f));
+			f->index = 1;
+			f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+			f->flags = V4L2_FMT_FLAG_COMPRESSED;
+			strcpy(f->description, "MJPEG");
+			f->pixelformat = V4L2_PIX_FMT_MJPEG;
+		}
+		break;
+	}
+
+	case VIDIOC_TRY_FMT: {
+		struct v4l2_format *f = arg;
+
+		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+			return -EINVAL;
+		if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV &&
+		    f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
+			return -EINVAL;
+		if (f->fmt.pix.field != V4L2_FIELD_ANY &&
+		    f->fmt.pix.field != V4L2_FIELD_NONE)
+			return -EINVAL;
+		f->fmt.pix.field = V4L2_FIELD_NONE;
+		if (f->fmt.pix.width <= 320) {
+			f->fmt.pix.width = 320;
+			f->fmt.pix.height = 240;
+		} else {
+			f->fmt.pix.width = 640;
+			f->fmt.pix.height = 480;
+		}
+		f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
+		f->fmt.pix.sizeimage = f->fmt.pix.height *
+				       f->fmt.pix.bytesperline;
+		f->fmt.pix.colorspace = 0;
+		f->fmt.pix.priv = 0;
+		break;
+	}
+
+	case VIDIOC_G_FMT: {
+		struct v4l2_format *f = arg;
+
+		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+			return -EINVAL;
+		memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format));
+		f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		switch (meye.mchip_mode) {
+		case MCHIP_HIC_MODE_CONT_OUT:
+		default:
+			f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
+			break;
+		case MCHIP_HIC_MODE_CONT_COMP:
+			f->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
+			break;
+		}
+		f->fmt.pix.field = V4L2_FIELD_NONE;
+		f->fmt.pix.width = mchip_hsize();
+		f->fmt.pix.height = mchip_vsize();
+		f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
+		f->fmt.pix.sizeimage = f->fmt.pix.height *
+				       f->fmt.pix.bytesperline;
+		f->fmt.pix.colorspace = 0;
+		f->fmt.pix.priv = 0;
+		break;
+	}
+
+	case VIDIOC_S_FMT: {
+		struct v4l2_format *f = arg;
+
+		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+			return -EINVAL;
+		if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV &&
+		    f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
+			return -EINVAL;
+		if (f->fmt.pix.field != V4L2_FIELD_ANY &&
+		    f->fmt.pix.field != V4L2_FIELD_NONE)
+			return -EINVAL;
+		f->fmt.pix.field = V4L2_FIELD_NONE;
+		down(&meye.lock);
+		if (f->fmt.pix.width <= 320) {
+			f->fmt.pix.width = 320;
+			f->fmt.pix.height = 240;
+			meye.params.subsample = 1;
+		} else {
+			f->fmt.pix.width = 640;
+			f->fmt.pix.height = 480;
+			meye.params.subsample = 0;
+		}
+		switch (f->fmt.pix.pixelformat) {
+		case V4L2_PIX_FMT_YUYV:
+			meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
+			break;
+		case V4L2_PIX_FMT_MJPEG:
+			meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
+			break;
+		}
+		up(&meye.lock);
+		f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
+		f->fmt.pix.sizeimage = f->fmt.pix.height *
+				       f->fmt.pix.bytesperline;
+		f->fmt.pix.colorspace = 0;
+		f->fmt.pix.priv = 0;
+
+		break;
+	}
+
+	case VIDIOC_REQBUFS: {
+		struct v4l2_requestbuffers *req = arg;
+		int i;
+
+		if (req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+			return -EINVAL;
+		if (req->memory != V4L2_MEMORY_MMAP)
+			return -EINVAL;
+		if (meye.grab_fbuffer && req->count == gbuffers) {
+			/* already allocated, no modifications */
+			break;
+		}
+		down(&meye.lock);
+		if (meye.grab_fbuffer) {
+			for (i = 0; i < gbuffers; i++)
+				if (meye.vma_use_count[i]) {
+					up(&meye.lock);
+					return -EINVAL;
+				}
+			rvfree(meye.grab_fbuffer, gbuffers * gbufsize);
+			meye.grab_fbuffer = NULL;
+		}
+		gbuffers = max(2, min((int)req->count, MEYE_MAX_BUFNBRS));
+		req->count = gbuffers;
+		meye.grab_fbuffer = rvmalloc(gbuffers * gbufsize);
+		if (!meye.grab_fbuffer) {
+			printk(KERN_ERR "meye: v4l framebuffer allocation"
+					" failed\n");
+			up(&meye.lock);
+			return -ENOMEM;
+		}
+		for (i = 0; i < gbuffers; i++)
+			meye.vma_use_count[i] = 0;
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOC_QUERYBUF: {
+		struct v4l2_buffer *buf = arg;
+		int index = buf->index;
+
+		if (index < 0 || index >= gbuffers)
+			return -EINVAL;
+		memset(buf, 0, sizeof(*buf));
+		buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		buf->index = index;
+		buf->bytesused = meye.grab_buffer[index].size;
+		buf->flags = V4L2_BUF_FLAG_MAPPED;
+		if (meye.grab_buffer[index].state == MEYE_BUF_USING)
+			buf->flags |= V4L2_BUF_FLAG_QUEUED;
+		if (meye.grab_buffer[index].state == MEYE_BUF_DONE)
+			buf->flags |= V4L2_BUF_FLAG_DONE;
+		buf->field = V4L2_FIELD_NONE;
+		buf->timestamp = meye.grab_buffer[index].timestamp;
+		buf->sequence = meye.grab_buffer[index].sequence;
+		buf->memory = V4L2_MEMORY_MMAP;
+		buf->m.offset = index * gbufsize;
+		buf->length = gbufsize;
+		break;
+	}
+
+	case VIDIOC_QBUF: {
+		struct v4l2_buffer *buf = arg;
+
+		if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+			return -EINVAL;
+		if (buf->memory != V4L2_MEMORY_MMAP)
+			return -EINVAL;
+		if (buf->index < 0 || buf->index >= gbuffers)
+			return -EINVAL;
+		if (meye.grab_buffer[buf->index].state != MEYE_BUF_UNUSED)
+			return -EINVAL;
+		down(&meye.lock);
+		buf->flags |= V4L2_BUF_FLAG_QUEUED;
+		buf->flags &= ~V4L2_BUF_FLAG_DONE;
+		meye.grab_buffer[buf->index].state = MEYE_BUF_USING;
+		kfifo_put(meye.grabq, (unsigned char *)&buf->index, sizeof(int));
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOC_DQBUF: {
+		struct v4l2_buffer *buf = arg;
+		int reqnr;
+
+		if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+			return -EINVAL;
+		if (buf->memory != V4L2_MEMORY_MMAP)
+			return -EINVAL;
+
+		down(&meye.lock);
+		if (kfifo_len(meye.doneq) == 0 && file->f_flags & O_NONBLOCK) {
+			up(&meye.lock);
+			return -EAGAIN;
+		}
+		if (wait_event_interruptible(meye.proc_list,
+					     kfifo_len(meye.doneq) != 0) < 0) {
+			up(&meye.lock);
+			return -EINTR;
+		}
+		if (!kfifo_get(meye.doneq, (unsigned char *)&reqnr,
+			       sizeof(int))) {
+			up(&meye.lock);
+			return -EBUSY;
+		}
+		if (meye.grab_buffer[reqnr].state != MEYE_BUF_DONE) {
+			up(&meye.lock);
+			return -EINVAL;
+		}
+		buf->index = reqnr;
+		buf->bytesused = meye.grab_buffer[reqnr].size;
+		buf->flags = V4L2_BUF_FLAG_MAPPED;
+		buf->field = V4L2_FIELD_NONE;
+		buf->timestamp = meye.grab_buffer[reqnr].timestamp;
+		buf->sequence = meye.grab_buffer[reqnr].sequence;
+		buf->memory = V4L2_MEMORY_MMAP;
+		buf->m.offset = reqnr * gbufsize;
+		buf->length = gbufsize;
+		meye.grab_buffer[reqnr].state = MEYE_BUF_UNUSED;
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOC_STREAMON: {
+		down(&meye.lock);
+		switch (meye.mchip_mode) {
+		case MCHIP_HIC_MODE_CONT_OUT:
+			mchip_continuous_start();
+			break;
+		case MCHIP_HIC_MODE_CONT_COMP:
+			mchip_cont_compression_start();
+			break;
+		default:
+			up(&meye.lock);
+			return -EINVAL;
+		}
+		up(&meye.lock);
+		break;
+	}
+
+	case VIDIOC_STREAMOFF: {
+		int i;
+
+		down(&meye.lock);
+		mchip_hic_stop();
+		kfifo_reset(meye.grabq);
+		kfifo_reset(meye.doneq);
+		for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
+			meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
+		up(&meye.lock);
+		break;
+	}
+
+	/*
+	 * XXX what about private snapshot ioctls ?
+	 * Do they need to be converted to V4L2 ?
+	*/
+
+	default:
+		return -ENOIOCTLCMD;
+	}
+
+	return 0;
+}
+
+static int meye_ioctl(struct inode *inode, struct file *file,
+		     unsigned int cmd, unsigned long arg)
+{
+	return video_usercopy(inode, file, cmd, arg, meye_do_ioctl);
+}
+
+static unsigned int meye_poll(struct file *file, poll_table *wait)
+{
+	unsigned int res = 0;
+
+	down(&meye.lock);
+	poll_wait(file, &meye.proc_list, wait);
+	if (kfifo_len(meye.doneq))
+		res = POLLIN | POLLRDNORM;
+	up(&meye.lock);
+	return res;
+}
+
+static void meye_vm_open(struct vm_area_struct *vma)
+{
+	int idx = (int)vma->vm_private_data;
+	meye.vma_use_count[idx]++;
+}
+
+static void meye_vm_close(struct vm_area_struct *vma)
+{
+	int idx = (int)vma->vm_private_data;
+	meye.vma_use_count[idx]--;
+}
+
+static struct vm_operations_struct meye_vm_ops = {
+	.open		= meye_vm_open,
+	.close		= meye_vm_close,
+};
+
+static int meye_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	unsigned long start = vma->vm_start;
+	unsigned long size = vma->vm_end - vma->vm_start;
+	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+	unsigned long page, pos;
+
+	down(&meye.lock);
+	if (size > gbuffers * gbufsize) {
+		up(&meye.lock);
+		return -EINVAL;
+	}
+	if (!meye.grab_fbuffer) {
+		int i;
+
+		/* lazy allocation */
+		meye.grab_fbuffer = rvmalloc(gbuffers*gbufsize);
+		if (!meye.grab_fbuffer) {
+			printk(KERN_ERR "meye: v4l framebuffer allocation failed\n");
+			up(&meye.lock);
+			return -ENOMEM;
+		}
+		for (i = 0; i < gbuffers; i++)
+			meye.vma_use_count[i] = 0;
+	}
+	pos = (unsigned long)meye.grab_fbuffer + offset;
+
+	while (size > 0) {
+		page = vmalloc_to_pfn((void *)pos);
+		if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
+			up(&meye.lock);
+			return -EAGAIN;
+		}
+		start += PAGE_SIZE;
+		pos += PAGE_SIZE;
+		if (size > PAGE_SIZE)
+			size -= PAGE_SIZE;
+		else
+			size = 0;
+	}
+
+	vma->vm_ops = &meye_vm_ops;
+	vma->vm_flags &= ~VM_IO;	/* not I/O memory */
+	vma->vm_flags |= VM_RESERVED;	/* avoid to swap out this VMA */
+	vma->vm_private_data = (void *) (offset / gbufsize);
+	meye_vm_open(vma);
+
+	up(&meye.lock);
+	return 0;
+}
+
+static struct file_operations meye_fops = {
+	.owner		= THIS_MODULE,
+	.open		= meye_open,
+	.release	= meye_release,
+	.mmap		= meye_mmap,
+	.ioctl		= meye_ioctl,
+	.poll		= meye_poll,
+	.llseek		= no_llseek,
+};
+
+static struct video_device meye_template = {
+	.owner		= THIS_MODULE,
+	.name		= "meye",
+	.type		= VID_TYPE_CAPTURE,
+	.hardware	= VID_HARDWARE_MEYE,
+	.fops		= &meye_fops,
+	.release	= video_device_release,
+	.minor		= -1,
+};
+
+#ifdef CONFIG_PM
+static int meye_suspend(struct pci_dev *pdev, u32 state)
+{
+	pci_save_state(pdev);
+	meye.pm_mchip_mode = meye.mchip_mode;
+	mchip_hic_stop();
+	mchip_set(MCHIP_MM_INTA, 0x0);
+	return 0;
+}
+
+static int meye_resume(struct pci_dev *pdev)
+{
+	pci_restore_state(pdev);
+	pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
+
+	mchip_delay(MCHIP_HIC_CMD, 0);
+	mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
+	msleep(1);
+	mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
+	msleep(1);
+	mchip_set(MCHIP_MM_PCI_MODE, 5);
+	msleep(1);
+	mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
+
+	switch (meye.pm_mchip_mode) {
+	case MCHIP_HIC_MODE_CONT_OUT:
+		mchip_continuous_start();
+		break;
+	case MCHIP_HIC_MODE_CONT_COMP:
+		mchip_cont_compression_start();
+		break;
+	}
+	return 0;
+}
+#endif
+
+static int __devinit meye_probe(struct pci_dev *pcidev,
+				const struct pci_device_id *ent)
+{
+	int ret = -EBUSY;
+	unsigned long mchip_adr;
+	u8 revision;
+
+	if (meye.mchip_dev != NULL) {
+		printk(KERN_ERR "meye: only one device allowed!\n");
+		goto outnotdev;
+	}
+
+	meye.mchip_dev = pcidev;
+	meye.video_dev = video_device_alloc();
+	if (!meye.video_dev) {
+		printk(KERN_ERR "meye: video_device_alloc() failed!\n");
+		goto outnotdev;
+	}
+
+	ret = -ENOMEM;
+	meye.grab_temp = vmalloc(MCHIP_NB_PAGES_MJPEG * PAGE_SIZE);
+	if (!meye.grab_temp) {
+		printk(KERN_ERR "meye: grab buffer allocation failed\n");
+		goto outvmalloc;
+	}
+
+	spin_lock_init(&meye.grabq_lock);
+	meye.grabq = kfifo_alloc(sizeof(int) * MEYE_MAX_BUFNBRS, GFP_KERNEL,
+				 &meye.grabq_lock);
+	if (IS_ERR(meye.grabq)) {
+		printk(KERN_ERR "meye: fifo allocation failed\n");
+		goto outkfifoalloc1;
+	}
+	spin_lock_init(&meye.doneq_lock);
+	meye.doneq = kfifo_alloc(sizeof(int) * MEYE_MAX_BUFNBRS, GFP_KERNEL,
+				 &meye.doneq_lock);
+	if (IS_ERR(meye.doneq)) {
+		printk(KERN_ERR "meye: fifo allocation failed\n");
+		goto outkfifoalloc2;
+	}
+
+	memcpy(meye.video_dev, &meye_template, sizeof(meye_template));
+	meye.video_dev->dev = &meye.mchip_dev->dev;
+
+	if ((ret = sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 1))) {
+		printk(KERN_ERR "meye: unable to power on the camera\n");
+		printk(KERN_ERR "meye: did you enable the camera in "
+				"sonypi using the module options ?\n");
+		goto outsonypienable;
+	}
+
+	ret = -EIO;
+	if ((ret = pci_enable_device(meye.mchip_dev))) {
+		printk(KERN_ERR "meye: pci_enable_device failed\n");
+		goto outenabledev;
+	}
+
+	mchip_adr = pci_resource_start(meye.mchip_dev,0);
+	if (!mchip_adr) {
+		printk(KERN_ERR "meye: mchip has no device base address\n");
+		goto outregions;
+	}
+	if (!request_mem_region(pci_resource_start(meye.mchip_dev, 0),
+				pci_resource_len(meye.mchip_dev, 0),
+				"meye")) {
+		printk(KERN_ERR "meye: request_mem_region failed\n");
+		goto outregions;
+	}
+	meye.mchip_mmregs = ioremap(mchip_adr, MCHIP_MM_REGS);
+	if (!meye.mchip_mmregs) {
+		printk(KERN_ERR "meye: ioremap failed\n");
+		goto outremap;
+	}
+
+	meye.mchip_irq = pcidev->irq;
+	if (request_irq(meye.mchip_irq, meye_irq,
+			SA_INTERRUPT | SA_SHIRQ, "meye", meye_irq)) {
+		printk(KERN_ERR "meye: request_irq failed\n");
+		goto outreqirq;
+	}
+
+	pci_read_config_byte(meye.mchip_dev, PCI_REVISION_ID, &revision);
+	pci_write_config_byte(meye.mchip_dev, PCI_CACHE_LINE_SIZE, 8);
+	pci_write_config_byte(meye.mchip_dev, PCI_LATENCY_TIMER, 64);
+
+	pci_set_master(meye.mchip_dev);
+
+	/* Ask the camera to perform a soft reset. */
+	pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
+
+	mchip_delay(MCHIP_HIC_CMD, 0);
+	mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
+
+	msleep(1);
+	mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
+
+	msleep(1);
+	mchip_set(MCHIP_MM_PCI_MODE, 5);
+
+	msleep(1);
+	mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
+
+	if (video_register_device(meye.video_dev, VFL_TYPE_GRABBER,
+				  video_nr) < 0) {
+		printk(KERN_ERR "meye: video_register_device failed\n");
+		goto outvideoreg;
+	}
+
+	init_MUTEX(&meye.lock);
+	init_waitqueue_head(&meye.proc_list);
+	meye.picture.depth = 16;
+	meye.picture.palette = VIDEO_PALETTE_YUV422;
+	meye.picture.brightness = 32 << 10;
+	meye.picture.hue = 32 << 10;
+	meye.picture.colour = 32 << 10;
+	meye.picture.contrast = 32 << 10;
+	meye.picture.whiteness = 0;
+	meye.params.subsample = 0;
+	meye.params.quality = 8;
+	meye.params.sharpness = 32;
+	meye.params.agc = 48;
+	meye.params.picture = 0;
+	meye.params.framerate = 0;
+
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERABRIGHTNESS, 32);
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERAHUE, 32);
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERACOLOR, 32);
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERACONTRAST, 32);
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERASHARPNESS, 32);
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERAPICTURE, 0);
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERAAGC, 48);
+
+	printk(KERN_INFO "meye: Motion Eye Camera Driver v%s.\n",
+	       MEYE_DRIVER_VERSION);
+	printk(KERN_INFO "meye: mchip KL5A72002 rev. %d, base %lx, irq %d\n",
+	       revision, mchip_adr, meye.mchip_irq);
+
+	return 0;
+
+outvideoreg:
+	free_irq(meye.mchip_irq, meye_irq);
+outreqirq:
+	iounmap(meye.mchip_mmregs);
+outremap:
+	release_mem_region(pci_resource_start(meye.mchip_dev, 0),
+			   pci_resource_len(meye.mchip_dev, 0));
+outregions:
+	pci_disable_device(meye.mchip_dev);
+outenabledev:
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 0);
+outsonypienable:
+	kfifo_free(meye.doneq);
+outkfifoalloc2:
+	kfifo_free(meye.grabq);
+outkfifoalloc1:
+	vfree(meye.grab_temp);
+outvmalloc:
+	video_device_release(meye.video_dev);
+outnotdev:
+	return ret;
+}
+
+static void __devexit meye_remove(struct pci_dev *pcidev)
+{
+	video_unregister_device(meye.video_dev);
+
+	mchip_hic_stop();
+
+	mchip_dma_free();
+
+	/* disable interrupts */
+	mchip_set(MCHIP_MM_INTA, 0x0);
+
+	free_irq(meye.mchip_irq, meye_irq);
+
+	iounmap(meye.mchip_mmregs);
+
+	release_mem_region(pci_resource_start(meye.mchip_dev, 0),
+			   pci_resource_len(meye.mchip_dev, 0));
+
+	pci_disable_device(meye.mchip_dev);
+
+	sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 0);
+
+	kfifo_free(meye.doneq);
+	kfifo_free(meye.grabq);
+
+	vfree(meye.grab_temp);
+
+	if (meye.grab_fbuffer) {
+		rvfree(meye.grab_fbuffer, gbuffers*gbufsize);
+		meye.grab_fbuffer = NULL;
+	}
+
+	printk(KERN_INFO "meye: removed\n");
+}
+
+static struct pci_device_id meye_pci_tbl[] = {
+	{ PCI_VENDOR_ID_KAWASAKI, PCI_DEVICE_ID_MCHIP_KL5A72002,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(pci, meye_pci_tbl);
+
+static struct pci_driver meye_driver = {
+	.name		= "meye",
+	.id_table	= meye_pci_tbl,
+	.probe		= meye_probe,
+	.remove		= __devexit_p(meye_remove),
+#ifdef CONFIG_PM
+	.suspend	= meye_suspend,
+	.resume		= meye_resume,
+#endif
+};
+
+static int __init meye_init(void)
+{
+	gbuffers = max(2, min((int)gbuffers, MEYE_MAX_BUFNBRS));
+	if (gbufsize < 0 || gbufsize > MEYE_MAX_BUFSIZE)
+		gbufsize = MEYE_MAX_BUFSIZE;
+	gbufsize = PAGE_ALIGN(gbufsize);
+	printk(KERN_INFO "meye: using %d buffers with %dk (%dk total)"
+			 "for capture\n",
+			 gbuffers,
+			 gbufsize / 1024, gbuffers * gbufsize / 1024);
+	return pci_register_driver(&meye_driver);
+}
+
+static void __exit meye_exit(void)
+{
+	pci_unregister_driver(&meye_driver);
+}
+
+module_init(meye_init);
+module_exit(meye_exit);