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, 1583 insertions, 0 deletions

diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c
new file mode 100644
index 00000000000..25743085b2d
--- /dev/null
+++ b/drivers/media/video/zoran_card.c
@@ -0,0 +1,1583 @@
+/*
+ * Zoran zr36057/zr36067 PCI controller driver, for the
+ * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
+ * Media Labs LML33/LML33R10.
+ *
+ * This part handles card-specific data and detection
+ * 
+ * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
+ *
+ * Currently maintained by:
+ *   Ronald Bultje    <rbultje@ronald.bitfreak.net>
+ *   Laurent Pinchart <laurent.pinchart@skynet.be>
+ *   Mailinglist      <mjpeg-users@lists.sf.net>
+ *
+ * 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/types.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/vmalloc.h>
+
+#include <linux/proc_fs.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/videodev.h>
+#include <linux/spinlock.h>
+#include <linux/sem.h>
+#include <linux/kmod.h>
+#include <linux/wait.h>
+
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/video_decoder.h>
+#include <linux/video_encoder.h>
+
+#include <asm/io.h>
+
+#include "videocodec.h"
+#include "zoran.h"
+#include "zoran_card.h"
+#include "zoran_device.h"
+#include "zoran_procfs.h"
+
+#define I2C_NAME(x) (x)->name
+
+extern const struct zoran_format zoran_formats[];
+
+static int card[BUZ_MAX] = { -1, -1, -1, -1 };
+module_param_array(card, int, NULL, 0);
+MODULE_PARM_DESC(card, "The type of card");
+
+static int encoder[BUZ_MAX] = { -1, -1, -1, -1 };
+module_param_array(encoder, int, NULL, 0);
+MODULE_PARM_DESC(encoder, "i2c TV encoder");
+
+static int decoder[BUZ_MAX] = { -1, -1, -1, -1 };
+module_param_array(decoder, int, NULL, 0);
+MODULE_PARM_DESC(decoder, "i2c TV decoder");
+
+/*
+   The video mem address of the video card.
+   The driver has a little database for some videocards
+   to determine it from there. If your video card is not in there
+   you have either to give it to the driver as a parameter
+   or set in in a VIDIOCSFBUF ioctl
+ */
+
+static unsigned long vidmem = 0;	/* Video memory base address */
+module_param(vidmem, ulong, 0);
+
+/*
+   Default input and video norm at startup of the driver.
+*/
+
+static int default_input = 0;	/* 0=Composite, 1=S-Video */
+module_param(default_input, int, 0);
+MODULE_PARM_DESC(default_input,
+		 "Default input (0=Composite, 1=S-Video, 2=Internal)");
+
+static int default_norm = 0;	/* 0=PAL, 1=NTSC 2=SECAM */
+module_param(default_norm, int, 0);
+MODULE_PARM_DESC(default_norm, "Default norm (0=PAL, 1=NTSC, 2=SECAM)");
+
+static int video_nr = -1;	/* /dev/videoN, -1 for autodetect */
+module_param(video_nr, int, 0);
+MODULE_PARM_DESC(video_nr, "video device number");
+
+/*
+   Number and size of grab buffers for Video 4 Linux
+   The vast majority of applications should not need more than 2,
+   the very popular BTTV driver actually does ONLY have 2.
+   Time sensitive applications might need more, the maximum
+   is VIDEO_MAX_FRAME (defined in <linux/videodev.h>).
+
+   The size is set so that the maximum possible request
+   can be satisfied. Decrease  it, if bigphys_area alloc'd
+   memory is low. If you don't have the bigphys_area patch,
+   set it to 128 KB. Will you allow only to grab small
+   images with V4L, but that's better than nothing.
+
+   v4l_bufsize has to be given in KB !
+
+*/
+
+int v4l_nbufs = 2;
+int v4l_bufsize = 128;		/* Everybody should be able to work with this setting */
+module_param(v4l_nbufs, int, 0);
+MODULE_PARM_DESC(v4l_nbufs, "Maximum number of V4L buffers to use");
+module_param(v4l_bufsize, int, 0);
+MODULE_PARM_DESC(v4l_bufsize, "Maximum size per V4L buffer (in kB)");
+
+int jpg_nbufs = 32;
+int jpg_bufsize = 512;		/* max size for 100% quality full-PAL frame */
+module_param(jpg_nbufs, int, 0);
+MODULE_PARM_DESC(jpg_nbufs, "Maximum number of JPG buffers to use");
+module_param(jpg_bufsize, int, 0);
+MODULE_PARM_DESC(jpg_bufsize, "Maximum size per JPG buffer (in kB)");
+
+int pass_through = 0;		/* 1=Pass through TV signal when device is not used */
+				/* 0=Show color bar when device is not used (LML33: only if lml33dpath=1) */
+module_param(pass_through, int, 0);
+MODULE_PARM_DESC(pass_through,
+		 "Pass TV signal through to TV-out when idling");
+
+static int debug = 1;
+int *zr_debug = &debug;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0-4)");
+
+MODULE_DESCRIPTION("Zoran-36057/36067 JPEG codec driver");
+MODULE_AUTHOR("Serguei Miridonov");
+MODULE_LICENSE("GPL");
+
+static struct pci_device_id zr36067_pci_tbl[] = {
+	{PCI_VENDOR_ID_ZORAN, PCI_DEVICE_ID_ZORAN_36057,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{0}
+};
+MODULE_DEVICE_TABLE(pci, zr36067_pci_tbl);
+
+#define dprintk(num, format, args...) \
+	do { \
+		if (*zr_debug >= num) \
+			printk(format, ##args); \
+	} while (0)
+
+int zoran_num;			/* number of Buzs in use */
+struct zoran zoran[BUZ_MAX];
+
+/* videocodec bus functions ZR36060 */
+static u32
+zr36060_read (struct videocodec *codec,
+	      u16                reg)
+{
+	struct zoran *zr = (struct zoran *) codec->master_data->data;
+	__u32 data;
+
+	if (post_office_wait(zr)
+	    || post_office_write(zr, 0, 1, reg >> 8)
+	    || post_office_write(zr, 0, 2, reg & 0xff)) {
+		return -1;
+	}
+
+	data = post_office_read(zr, 0, 3) & 0xff;
+	return data;
+}
+
+static void
+zr36060_write (struct videocodec *codec,
+	       u16                reg,
+	       u32                val)
+{
+	struct zoran *zr = (struct zoran *) codec->master_data->data;
+
+	if (post_office_wait(zr)
+	    || post_office_write(zr, 0, 1, reg >> 8)
+	    || post_office_write(zr, 0, 2, reg & 0xff)) {
+		return;
+	}
+
+	post_office_write(zr, 0, 3, val & 0xff);
+}
+
+/* videocodec bus functions ZR36050 */
+static u32
+zr36050_read (struct videocodec *codec,
+	      u16                reg)
+{
+	struct zoran *zr = (struct zoran *) codec->master_data->data;
+	__u32 data;
+
+	if (post_office_wait(zr)
+	    || post_office_write(zr, 1, 0, reg >> 2)) {	// reg. HIGHBYTES
+		return -1;
+	}
+
+	data = post_office_read(zr, 0, reg & 0x03) & 0xff;	// reg. LOWBYTES + read
+	return data;
+}
+
+static void
+zr36050_write (struct videocodec *codec,
+	       u16                reg,
+	       u32                val)
+{
+	struct zoran *zr = (struct zoran *) codec->master_data->data;
+
+	if (post_office_wait(zr)
+	    || post_office_write(zr, 1, 0, reg >> 2)) {	// reg. HIGHBYTES
+		return;
+	}
+
+	post_office_write(zr, 0, reg & 0x03, val & 0xff);	// reg. LOWBYTES + wr. data
+}
+
+/* videocodec bus functions ZR36016 */
+static u32
+zr36016_read (struct videocodec *codec,
+	      u16                reg)
+{
+	struct zoran *zr = (struct zoran *) codec->master_data->data;
+	__u32 data;
+
+	if (post_office_wait(zr)) {
+		return -1;
+	}
+
+	data = post_office_read(zr, 2, reg & 0x03) & 0xff;	// read
+	return data;
+}
+
+/* hack for in zoran_device.c */
+void
+zr36016_write (struct videocodec *codec,
+	       u16                reg,
+	       u32                val)
+{
+	struct zoran *zr = (struct zoran *) codec->master_data->data;
+
+	if (post_office_wait(zr)) {
+		return;
+	}
+
+	post_office_write(zr, 2, reg & 0x03, val & 0x0ff);	// wr. data
+}
+
+/*
+ * Board specific information
+ */
+
+static void
+dc10_init (struct zoran *zr)
+{
+	dprintk(3, KERN_DEBUG "%s: dc10_init()\n", ZR_DEVNAME(zr));
+
+	/* Pixel clock selection */
+	GPIO(zr, 4, 0);
+	GPIO(zr, 5, 1);
+	/* Enable the video bus sync signals */
+	GPIO(zr, 7, 0);
+}
+
+static void
+dc10plus_init (struct zoran *zr)
+{
+	dprintk(3, KERN_DEBUG "%s: dc10plus_init()\n", ZR_DEVNAME(zr));
+}
+
+static void
+buz_init (struct zoran *zr)
+{
+	dprintk(3, KERN_DEBUG "%s: buz_init()\n", ZR_DEVNAME(zr));
+
+	/* some stuff from Iomega */
+	pci_write_config_dword(zr->pci_dev, 0xfc, 0x90680f15);
+	pci_write_config_dword(zr->pci_dev, 0x0c, 0x00012020);
+	pci_write_config_dword(zr->pci_dev, 0xe8, 0xc0200000);
+}
+
+static void
+lml33_init (struct zoran *zr)
+{
+	dprintk(3, KERN_DEBUG "%s: lml33_init()\n", ZR_DEVNAME(zr));
+
+	GPIO(zr, 2, 1);		// Set Composite input/output
+}
+
+static char *
+i2cid_to_modulename (u16 i2c_id)
+{
+	char *name = NULL;
+
+	switch (i2c_id) {
+	case I2C_DRIVERID_SAA7110:
+		name = "saa7110";
+		break;
+	case I2C_DRIVERID_SAA7111A:
+		name = "saa7111";
+		break;
+	case I2C_DRIVERID_SAA7114:
+		name = "saa7114";
+		break;
+	case I2C_DRIVERID_SAA7185B:
+		name = "saa7185";
+		break;
+	case I2C_DRIVERID_ADV7170:
+		name = "adv7170";
+		break;
+	case I2C_DRIVERID_ADV7175:
+		name = "adv7175";
+		break;
+	case I2C_DRIVERID_BT819:
+		name = "bt819";
+		break;
+	case I2C_DRIVERID_BT856:
+		name = "bt856";
+		break;
+	case I2C_DRIVERID_VPX3220:
+		name = "vpx3220";
+		break;
+/*	case I2C_DRIVERID_VPX3224:
+		name = "vpx3224";
+		break;
+	case I2C_DRIVERID_MSE3000:
+		name = "mse3000";
+		break;*/
+	default:
+		break;
+	}
+
+	return name;
+}
+
+static char *
+codecid_to_modulename (u16 codecid)
+{
+	char *name = NULL;
+
+	switch (codecid) {
+	case CODEC_TYPE_ZR36060:
+		name = "zr36060";
+		break;
+	case CODEC_TYPE_ZR36050:
+		name = "zr36050";
+		break;
+	case CODEC_TYPE_ZR36016:
+		name = "zr36016";
+		break;
+	default:
+		break;
+	}
+
+	return name;
+}
+
+// struct tvnorm {
+//      u16 Wt, Wa, HStart, HSyncStart, Ht, Ha, VStart;
+// };
+
+static struct tvnorm f50sqpixel = { 944, 768, 83, 880, 625, 576, 16 };
+static struct tvnorm f60sqpixel = { 780, 640, 51, 716, 525, 480, 12 };
+static struct tvnorm f50ccir601 = { 864, 720, 75, 804, 625, 576, 18 };
+static struct tvnorm f60ccir601 = { 858, 720, 57, 788, 525, 480, 16 };
+
+static struct tvnorm f50ccir601_lml33 = { 864, 720, 75+34, 804, 625, 576, 18 };
+static struct tvnorm f60ccir601_lml33 = { 858, 720, 57+34, 788, 525, 480, 16 };
+
+/* The DC10 (57/16/50) uses VActive as HSync, so HStart must be 0 */
+static struct tvnorm f50sqpixel_dc10 = { 944, 768, 0, 880, 625, 576, 0 };
+static struct tvnorm f60sqpixel_dc10 = { 780, 640, 0, 716, 525, 480, 12 };
+
+/* FIXME: I cannot swap U and V in saa7114, so i do one
+ * pixel left shift in zoran (75 -> 74)
+ * (Maxim Yevtyushkin <max@linuxmedialabs.com>) */
+static struct tvnorm f50ccir601_lm33r10 = { 864, 720, 74+54, 804, 625, 576, 18 };
+static struct tvnorm f60ccir601_lm33r10 = { 858, 720, 56+54, 788, 525, 480, 16 };
+
+static struct card_info zoran_cards[NUM_CARDS] __devinitdata = {
+	{
+		.type = DC10_old,
+		.name = "DC10(old)",
+		.i2c_decoder = I2C_DRIVERID_VPX3220,
+		/*.i2c_encoder = I2C_DRIVERID_MSE3000,*/
+		.video_codec = CODEC_TYPE_ZR36050,
+		.video_vfe = CODEC_TYPE_ZR36016,
+
+		.inputs = 3,
+		.input = {
+			{ 1, "Composite" },
+			{ 2, "S-Video" },
+			{ 0, "Internal/comp" }
+		},
+		.norms = 3,
+		.tvn = {
+			&f50sqpixel_dc10,
+			&f60sqpixel_dc10,
+			&f50sqpixel_dc10
+		},
+		.jpeg_int = 0,
+		.vsync_int = ZR36057_ISR_GIRQ1,
+		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
+		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
+		.gpcs = { -1, 0 },
+		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
+		.gws_not_connected = 0,
+		.init = &dc10_init,
+	}, {
+		.type = DC10_new,
+		.name = "DC10(new)",
+		.i2c_decoder = I2C_DRIVERID_SAA7110,
+		.i2c_encoder = I2C_DRIVERID_ADV7175,
+		.video_codec = CODEC_TYPE_ZR36060,
+
+		.inputs = 3,
+		.input = {
+				{ 0, "Composite" },
+				{ 7, "S-Video" },
+				{ 5, "Internal/comp" }
+			},
+		.norms = 3,
+		.tvn = {
+				&f50sqpixel,
+				&f60sqpixel,
+				&f50sqpixel},
+		.jpeg_int = ZR36057_ISR_GIRQ0,
+		.vsync_int = ZR36057_ISR_GIRQ1,
+		.gpio = { 3, 0, 6, 1, 2, -1, 4, 5 },
+		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
+		.gpcs = { -1, 1},
+		.vfe_pol = { 1, 1, 1, 1, 0, 0, 0, 0 },
+		.gws_not_connected = 0,
+		.init = &dc10plus_init,
+	}, {
+		.type = DC10plus,
+		.name = "DC10plus",
+		.vendor_id = PCI_VENDOR_ID_MIRO,
+		.device_id = PCI_DEVICE_ID_MIRO_DC10PLUS,
+		.i2c_decoder = I2C_DRIVERID_SAA7110,
+		.i2c_encoder = I2C_DRIVERID_ADV7175,
+		.video_codec = CODEC_TYPE_ZR36060,
+
+		.inputs = 3,
+		.input = {
+			{ 0, "Composite" },
+			{ 7, "S-Video" },
+			{ 5, "Internal/comp" }
+		},
+		.norms = 3,
+		.tvn = {
+			&f50sqpixel,
+			&f60sqpixel,
+			&f50sqpixel
+		},
+		.jpeg_int = ZR36057_ISR_GIRQ0,
+		.vsync_int = ZR36057_ISR_GIRQ1,
+		.gpio = { 3, 0, 6, 1, 2, -1, 4, 5 },
+		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
+		.gpcs = { -1, 1 },
+		.vfe_pol = { 1, 1, 1, 1, 0, 0, 0, 0 },
+		.gws_not_connected = 0,
+		.init = &dc10plus_init,
+	}, {
+		.type = DC30,
+		.name = "DC30",
+		.i2c_decoder = I2C_DRIVERID_VPX3220,
+		.i2c_encoder = I2C_DRIVERID_ADV7175,
+		.video_codec = CODEC_TYPE_ZR36050,
+		.video_vfe = CODEC_TYPE_ZR36016,
+
+		.inputs = 3,
+		.input = {
+			{ 1, "Composite" },
+			{ 2, "S-Video" },
+			{ 0, "Internal/comp" }
+		},
+		.norms = 3,
+		.tvn = {
+			&f50sqpixel_dc10,
+			&f60sqpixel_dc10,
+			&f50sqpixel_dc10
+		},
+		.jpeg_int = 0,
+		.vsync_int = ZR36057_ISR_GIRQ1,
+		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
+		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
+		.gpcs = { -1, 0 },
+		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
+		.gws_not_connected = 0,
+		.init = &dc10_init,
+	}, {
+		.type = DC30plus,
+		.name = "DC30plus",
+		.vendor_id = PCI_VENDOR_ID_MIRO,
+		.device_id = PCI_DEVICE_ID_MIRO_DC30PLUS,
+		.i2c_decoder = I2C_DRIVERID_VPX3220,
+		.i2c_encoder = I2C_DRIVERID_ADV7175,
+		.video_codec = CODEC_TYPE_ZR36050,
+		.video_vfe = CODEC_TYPE_ZR36016,
+
+		.inputs = 3,
+		.input = {
+			{ 1, "Composite" },
+			{ 2, "S-Video" },
+			{ 0, "Internal/comp" }
+		},
+		.norms = 3,
+		.tvn = {
+			&f50sqpixel_dc10,
+			&f60sqpixel_dc10,
+			&f50sqpixel_dc10
+		},
+		.jpeg_int = 0,
+		.vsync_int = ZR36057_ISR_GIRQ1,
+		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
+		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
+		.gpcs = { -1, 0 },
+		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
+		.gws_not_connected = 0,
+		.init = &dc10_init,
+	}, {
+		.type = LML33,
+		.name = "LML33",
+		.i2c_decoder = I2C_DRIVERID_BT819,
+		.i2c_encoder = I2C_DRIVERID_BT856,
+		.video_codec = CODEC_TYPE_ZR36060,
+
+		.inputs = 2,
+		.input = {
+			{ 0, "Composite" },
+			{ 7, "S-Video" }
+		},
+		.norms = 2,
+		.tvn = {
+			&f50ccir601_lml33,
+			&f60ccir601_lml33,
+			NULL
+		},
+		.jpeg_int = ZR36057_ISR_GIRQ1,
+		.vsync_int = ZR36057_ISR_GIRQ0,
+		.gpio = { 1, -1, 3, 5, 7, -1, -1, -1 },
+		.gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 },
+		.gpcs = { 3, 1 },
+		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
+		.gws_not_connected = 1,
+		.init = &lml33_init,
+	}, {
+		.type = LML33R10,
+		.name = "LML33R10",
+		.vendor_id = PCI_VENDOR_ID_ELECTRONICDESIGNGMBH,
+		.device_id = PCI_DEVICE_ID_LML_33R10,
+		.i2c_decoder = I2C_DRIVERID_SAA7114,
+		.i2c_encoder = I2C_DRIVERID_ADV7170,
+		.video_codec = CODEC_TYPE_ZR36060,
+
+		.inputs = 2,
+		.input = {
+			{ 0, "Composite" },
+			{ 7, "S-Video" }
+		},
+		.norms = 2,
+		.tvn = {
+			&f50ccir601_lm33r10,
+			&f60ccir601_lm33r10,
+			NULL
+		},
+		.jpeg_int = ZR36057_ISR_GIRQ1,
+		.vsync_int = ZR36057_ISR_GIRQ0,
+		.gpio = { 1, -1, 3, 5, 7, -1, -1, -1 },
+		.gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 },
+		.gpcs = { 3, 1 },
+		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
+		.gws_not_connected = 1,
+		.init = &lml33_init,
+	}, {
+		.type = BUZ,
+		.name = "Buz",
+		.vendor_id = PCI_VENDOR_ID_IOMEGA,
+		.device_id = PCI_DEVICE_ID_IOMEGA_BUZ,
+		.i2c_decoder = I2C_DRIVERID_SAA7111A,
+		.i2c_encoder = I2C_DRIVERID_SAA7185B,
+		.video_codec = CODEC_TYPE_ZR36060,
+
+		.inputs = 2,
+		.input = {
+			{ 3, "Composite" },
+			{ 7, "S-Video" }
+		},
+		.norms = 3,
+		.tvn = {
+			&f50ccir601,
+			&f60ccir601,
+			&f50ccir601
+		},
+		.jpeg_int = ZR36057_ISR_GIRQ1,
+		.vsync_int = ZR36057_ISR_GIRQ0,
+		.gpio = { 1, -1, 3, -1, -1, -1, -1, -1 },
+		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
+		.gpcs = { 3, 1 },
+		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
+		.gws_not_connected = 1,
+		.init = &buz_init,
+	}
+};
+
+/*
+ * I2C functions
+ */
+/* software I2C functions */
+static int
+zoran_i2c_getsda (void *data)
+{
+	struct zoran *zr = (struct zoran *) data;
+
+	return (btread(ZR36057_I2CBR) >> 1) & 1;
+}
+
+static int
+zoran_i2c_getscl (void *data)
+{
+	struct zoran *zr = (struct zoran *) data;
+
+	return btread(ZR36057_I2CBR) & 1;
+}
+
+static void
+zoran_i2c_setsda (void *data,
+		  int   state)
+{
+	struct zoran *zr = (struct zoran *) data;
+
+	if (state)
+		zr->i2cbr |= 2;
+	else
+		zr->i2cbr &= ~2;
+	btwrite(zr->i2cbr, ZR36057_I2CBR);
+}
+
+static void
+zoran_i2c_setscl (void *data,
+		  int   state)
+{
+	struct zoran *zr = (struct zoran *) data;
+
+	if (state)
+		zr->i2cbr |= 1;
+	else
+		zr->i2cbr &= ~1;
+	btwrite(zr->i2cbr, ZR36057_I2CBR);
+}
+
+static int
+zoran_i2c_client_register (struct i2c_client *client)
+{
+	struct zoran *zr = (struct zoran *) i2c_get_adapdata(client->adapter);
+	int res = 0;
+
+	dprintk(2,
+		KERN_DEBUG "%s: i2c_client_register() - driver id = %d\n",
+		ZR_DEVNAME(zr), client->driver->id);
+
+	down(&zr->resource_lock);
+
+	if (zr->user > 0) {
+		/* we're already busy, so we keep a reference to
+		 * them... Could do a lot of stuff here, but this
+		 * is easiest. (Did I ever mention I'm a lazy ass?)
+		 */
+		res = -EBUSY;
+		goto clientreg_unlock_and_return;
+	}
+
+	if (client->driver->id == zr->card.i2c_decoder)
+		zr->decoder = client;
+	else if (client->driver->id == zr->card.i2c_encoder)
+		zr->encoder = client;
+	else {
+		res = -ENODEV;
+		goto clientreg_unlock_and_return;
+	}
+
+clientreg_unlock_and_return:
+	up(&zr->resource_lock);
+
+	return res;
+}
+
+static int
+zoran_i2c_client_unregister (struct i2c_client *client)
+{
+	struct zoran *zr = (struct zoran *) i2c_get_adapdata(client->adapter);
+	int res = 0;
+
+	dprintk(2, KERN_DEBUG "%s: i2c_client_unregister()\n", ZR_DEVNAME(zr));
+
+	down(&zr->resource_lock);
+
+	if (zr->user > 0) {
+		res = -EBUSY;
+		goto clientunreg_unlock_and_return;
+	}
+
+	/* try to locate it */
+	if (client == zr->encoder) {
+		zr->encoder = NULL;
+	} else if (client == zr->decoder) {
+		zr->decoder = NULL;
+		snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%d]", zr->id);
+	}
+clientunreg_unlock_and_return:
+	up(&zr->resource_lock);
+	return res;
+}
+
+static struct i2c_algo_bit_data zoran_i2c_bit_data_template = {
+	.setsda = zoran_i2c_setsda,
+	.setscl = zoran_i2c_setscl,
+	.getsda = zoran_i2c_getsda,
+	.getscl = zoran_i2c_getscl,
+	.udelay = 10,
+	.mdelay = 0,
+	.timeout = 100,
+};
+
+static struct i2c_adapter zoran_i2c_adapter_template = {
+	I2C_DEVNAME("zr36057"),
+	.id = I2C_HW_B_ZR36067,
+	.algo = NULL,
+	.client_register = zoran_i2c_client_register,
+	.client_unregister = zoran_i2c_client_unregister,
+};
+
+static int
+zoran_register_i2c (struct zoran *zr)
+{
+	memcpy(&zr->i2c_algo, &zoran_i2c_bit_data_template,
+	       sizeof(struct i2c_algo_bit_data));
+	zr->i2c_algo.data = zr;
+	memcpy(&zr->i2c_adapter, &zoran_i2c_adapter_template,
+	       sizeof(struct i2c_adapter));
+	strncpy(I2C_NAME(&zr->i2c_adapter), ZR_DEVNAME(zr),
+		sizeof(I2C_NAME(&zr->i2c_adapter)) - 1);
+	i2c_set_adapdata(&zr->i2c_adapter, zr);
+	zr->i2c_adapter.algo_data = &zr->i2c_algo;
+	return i2c_bit_add_bus(&zr->i2c_adapter);
+}
+
+static void
+zoran_unregister_i2c (struct zoran *zr)
+{
+	i2c_bit_del_bus((&zr->i2c_adapter));
+}
+
+/* Check a zoran_params struct for correctness, insert default params */
+
+int
+zoran_check_jpg_settings (struct zoran              *zr,
+			  struct zoran_jpg_settings *settings)
+{
+	int err = 0, err0 = 0;
+
+	dprintk(4,
+		KERN_DEBUG
+		"%s: check_jpg_settings() - dec: %d, Hdcm: %d, Vdcm: %d, Tdcm: %d\n",
+		ZR_DEVNAME(zr), settings->decimation, settings->HorDcm,
+		settings->VerDcm, settings->TmpDcm);
+	dprintk(4,
+		KERN_DEBUG
+		"%s: check_jpg_settings() - x: %d, y: %d, w: %d, y: %d\n",
+		ZR_DEVNAME(zr), settings->img_x, settings->img_y,
+		settings->img_width, settings->img_height);
+	/* Check decimation, set default values for decimation = 1, 2, 4 */
+	switch (settings->decimation) {
+	case 1:
+
+		settings->HorDcm = 1;
+		settings->VerDcm = 1;
+		settings->TmpDcm = 1;
+		settings->field_per_buff = 2;
+		settings->img_x = 0;
+		settings->img_y = 0;
+		settings->img_width = BUZ_MAX_WIDTH;
+		settings->img_height = BUZ_MAX_HEIGHT / 2;
+		break;
+	case 2:
+
+		settings->HorDcm = 2;
+		settings->VerDcm = 1;
+		settings->TmpDcm = 2;
+		settings->field_per_buff = 1;
+		settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
+		settings->img_y = 0;
+		settings->img_width =
+		    (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
+		settings->img_height = BUZ_MAX_HEIGHT / 2;
+		break;
+	case 4:
+
+		if (zr->card.type == DC10_new) {
+			dprintk(1,
+				KERN_DEBUG
+				"%s: check_jpg_settings() - HDec by 4 is not supported on the DC10\n",
+				ZR_DEVNAME(zr));
+			err0++;
+			break;
+		}
+
+		settings->HorDcm = 4;
+		settings->VerDcm = 2;
+		settings->TmpDcm = 2;
+		settings->field_per_buff = 1;
+		settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
+		settings->img_y = 0;
+		settings->img_width =
+		    (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
+		settings->img_height = BUZ_MAX_HEIGHT / 2;
+		break;
+	case 0:
+
+		/* We have to check the data the user has set */
+
+		if (settings->HorDcm != 1 && settings->HorDcm != 2 &&
+		    (zr->card.type == DC10_new || settings->HorDcm != 4))
+			err0++;
+		if (settings->VerDcm != 1 && settings->VerDcm != 2)
+			err0++;
+		if (settings->TmpDcm != 1 && settings->TmpDcm != 2)
+			err0++;
+		if (settings->field_per_buff != 1 &&
+		    settings->field_per_buff != 2)
+			err0++;
+		if (settings->img_x < 0)
+			err0++;
+		if (settings->img_y < 0)
+			err0++;
+		if (settings->img_width < 0)
+			err0++;
+		if (settings->img_height < 0)
+			err0++;
+		if (settings->img_x + settings->img_width > BUZ_MAX_WIDTH)
+			err0++;
+		if (settings->img_y + settings->img_height >
+		    BUZ_MAX_HEIGHT / 2)
+			err0++;
+		if (settings->HorDcm && settings->VerDcm) {
+			if (settings->img_width %
+			    (16 * settings->HorDcm) != 0)
+				err0++;
+			if (settings->img_height %
+			    (8 * settings->VerDcm) != 0)
+				err0++;
+		}
+
+		if (err0) {
+			dprintk(1,
+				KERN_ERR
+				"%s: check_jpg_settings() - error in params for decimation = 0\n",
+				ZR_DEVNAME(zr));
+			err++;
+		}
+		break;
+	default:
+		dprintk(1,
+			KERN_ERR
+			"%s: check_jpg_settings() - decimation = %d, must be 0, 1, 2 or 4\n",
+			ZR_DEVNAME(zr), settings->decimation);
+		err++;
+		break;
+	}
+
+	if (settings->jpg_comp.quality > 100)
+		settings->jpg_comp.quality = 100;
+	if (settings->jpg_comp.quality < 5)
+		settings->jpg_comp.quality = 5;
+	if (settings->jpg_comp.APPn < 0)
+		settings->jpg_comp.APPn = 0;
+	if (settings->jpg_comp.APPn > 15)
+		settings->jpg_comp.APPn = 15;
+	if (settings->jpg_comp.APP_len < 0)
+		settings->jpg_comp.APP_len = 0;
+	if (settings->jpg_comp.APP_len > 60)
+		settings->jpg_comp.APP_len = 60;
+	if (settings->jpg_comp.COM_len < 0)
+		settings->jpg_comp.COM_len = 0;
+	if (settings->jpg_comp.COM_len > 60)
+		settings->jpg_comp.COM_len = 60;
+	if (err)
+		return -EINVAL;
+	return 0;
+}
+
+void
+zoran_open_init_params (struct zoran *zr)
+{
+	int i;
+
+	/* User must explicitly set a window */
+	zr->overlay_settings.is_set = 0;
+	zr->overlay_mask = NULL;
+	zr->overlay_active = ZORAN_FREE;
+
+	zr->v4l_memgrab_active = 0;
+	zr->v4l_overlay_active = 0;
+	zr->v4l_grab_frame = NO_GRAB_ACTIVE;
+	zr->v4l_grab_seq = 0;
+	zr->v4l_settings.width = 192;
+	zr->v4l_settings.height = 144;
+	zr->v4l_settings.format = &zoran_formats[4];	/* YUY2 - YUV-4:2:2 packed */
+	zr->v4l_settings.bytesperline =
+	    zr->v4l_settings.width *
+	    ((zr->v4l_settings.format->depth + 7) / 8);
+
+	/* DMA ring stuff for V4L */
+	zr->v4l_pend_tail = 0;
+	zr->v4l_pend_head = 0;
+	zr->v4l_sync_tail = 0;
+	zr->v4l_buffers.active = ZORAN_FREE;
+	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
+		zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;	/* nothing going on */
+	}
+	zr->v4l_buffers.allocated = 0;
+
+	for (i = 0; i < BUZ_MAX_FRAME; i++) {
+		zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER;	/* nothing going on */
+	}
+	zr->jpg_buffers.active = ZORAN_FREE;
+	zr->jpg_buffers.allocated = 0;
+	/* Set necessary params and call zoran_check_jpg_settings to set the defaults */
+	zr->jpg_settings.decimation = 1;
+	zr->jpg_settings.jpg_comp.quality = 50;	/* default compression factor 8 */
+	if (zr->card.type != BUZ)
+		zr->jpg_settings.odd_even = 1;
+	else
+		zr->jpg_settings.odd_even = 0;
+	zr->jpg_settings.jpg_comp.APPn = 0;
+	zr->jpg_settings.jpg_comp.APP_len = 0;	/* No APPn marker */
+	memset(zr->jpg_settings.jpg_comp.APP_data, 0,
+	       sizeof(zr->jpg_settings.jpg_comp.APP_data));
+	zr->jpg_settings.jpg_comp.COM_len = 0;	/* No COM marker */
+	memset(zr->jpg_settings.jpg_comp.COM_data, 0,
+	       sizeof(zr->jpg_settings.jpg_comp.COM_data));
+	zr->jpg_settings.jpg_comp.jpeg_markers =
+	    JPEG_MARKER_DHT | JPEG_MARKER_DQT;
+	i = zoran_check_jpg_settings(zr, &zr->jpg_settings);
+	if (i)
+		dprintk(1,
+			KERN_ERR
+			"%s: zoran_open_init_params() internal error\n",
+			ZR_DEVNAME(zr));
+
+	clear_interrupt_counters(zr);
+	zr->testing = 0;
+}
+
+static void __devinit
+test_interrupts (struct zoran *zr)
+{
+	DEFINE_WAIT(wait);
+	int timeout, icr;
+
+	clear_interrupt_counters(zr);
+
+	zr->testing = 1;
+	icr = btread(ZR36057_ICR);
+	btwrite(0x78000000 | ZR36057_ICR_IntPinEn, ZR36057_ICR);
+	prepare_to_wait(&zr->test_q, &wait, TASK_INTERRUPTIBLE);
+	timeout = schedule_timeout(HZ);
+	finish_wait(&zr->test_q, &wait);
+	btwrite(0, ZR36057_ICR);
+	btwrite(0x78000000, ZR36057_ISR);
+	zr->testing = 0;
+	dprintk(5, KERN_INFO "%s: Testing interrupts...\n", ZR_DEVNAME(zr));
+	if (timeout) {
+		dprintk(1, ": time spent: %d\n", 1 * HZ - timeout);
+	}
+	if (*zr_debug > 1)
+		print_interrupts(zr);
+	btwrite(icr, ZR36057_ICR);
+}
+
+static int __devinit
+zr36057_init (struct zoran *zr)
+{
+	unsigned long mem;
+	void *vdev;
+	unsigned mem_needed;
+	int j;
+	int two = 2;
+	int zero = 0;
+
+	dprintk(1,
+		KERN_INFO
+		"%s: zr36057_init() - initializing card[%d], zr=%p\n",
+		ZR_DEVNAME(zr), zr->id, zr);
+
+	/* default setup of all parameters which will persist between opens */
+	zr->user = 0;
+
+	init_waitqueue_head(&zr->v4l_capq);
+	init_waitqueue_head(&zr->jpg_capq);
+	init_waitqueue_head(&zr->test_q);
+	zr->jpg_buffers.allocated = 0;
+	zr->v4l_buffers.allocated = 0;
+
+	zr->buffer.base = (void *) vidmem;
+	zr->buffer.width = 0;
+	zr->buffer.height = 0;
+	zr->buffer.depth = 0;
+	zr->buffer.bytesperline = 0;
+
+	/* Avoid nonsense settings from user for default input/norm */
+	if (default_norm < VIDEO_MODE_PAL &&
+	    default_norm > VIDEO_MODE_SECAM)
+		default_norm = VIDEO_MODE_PAL;
+	zr->norm = default_norm;
+	if (!(zr->timing = zr->card.tvn[zr->norm])) {
+		dprintk(1,
+			KERN_WARNING
+			"%s: zr36057_init() - default TV standard not supported by hardware. PAL will be used.\n",
+			ZR_DEVNAME(zr));
+		zr->norm = VIDEO_MODE_PAL;
+		zr->timing = zr->card.tvn[zr->norm];
+	}
+
+	zr->input = default_input = (default_input ? 1 : 0);
+
+	/* Should the following be reset at every open ? */
+	zr->hue = 32768;
+	zr->contrast = 32768;
+	zr->saturation = 32768;
+	zr->brightness = 32768;
+
+	/* default setup (will be repeated at every open) */
+	zoran_open_init_params(zr);
+
+	/* allocate memory *before* doing anything to the hardware
+	 * in case allocation fails */
+	mem_needed = BUZ_NUM_STAT_COM * 4;
+	mem = (unsigned long) kmalloc(mem_needed, GFP_KERNEL);
+	vdev = (void *) kmalloc(sizeof(struct video_device), GFP_KERNEL);
+	if (!mem || !vdev) {
+		dprintk(1,
+			KERN_ERR
+			"%s: zr36057_init() - kmalloc (STAT_COM) failed\n",
+			ZR_DEVNAME(zr));
+		if (vdev)
+			kfree(vdev);
+		if (mem)
+			kfree((void *)mem);
+		return -ENOMEM;
+	}
+	memset((void *) mem, 0, mem_needed);
+	zr->stat_com = (u32 *) mem;
+	for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
+		zr->stat_com[j] = 1;	/* mark as unavailable to zr36057 */
+	}
+
+	/*
+	 *   Now add the template and register the device unit.
+	 */
+	zr->video_dev = vdev;
+	memcpy(zr->video_dev, &zoran_template, sizeof(zoran_template));
+	strcpy(zr->video_dev->name, ZR_DEVNAME(zr));
+	if (video_register_device(zr->video_dev, VFL_TYPE_GRABBER,
+				  video_nr) < 0) {
+		zoran_unregister_i2c(zr);
+		kfree((void *) zr->stat_com);
+		kfree(vdev);
+		return -1;
+	}
+
+	zoran_init_hardware(zr);
+	if (*zr_debug > 2)
+		detect_guest_activity(zr);
+	test_interrupts(zr);
+	if (!pass_through) {
+		decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
+		encoder_command(zr, ENCODER_SET_INPUT, &two);
+	}
+
+	zr->zoran_proc = NULL;
+	zr->initialized = 1;
+	return 0;
+}
+
+static void
+zoran_release (struct zoran *zr)
+{
+	if (!zr->initialized)
+		return;
+	/* unregister videocodec bus */
+	if (zr->codec) {
+		struct videocodec_master *master = zr->codec->master_data;
+		videocodec_detach(zr->codec);
+		if (master)
+			kfree(master);
+	}
+	if (zr->vfe) {
+		struct videocodec_master *master = zr->vfe->master_data;
+		videocodec_detach(zr->vfe);
+		if (master)
+			kfree(master);
+	}
+
+	/* unregister i2c bus */
+	zoran_unregister_i2c(zr);
+	/* disable PCI bus-mastering */
+	zoran_set_pci_master(zr, 0);
+	/* put chip into reset */
+	btwrite(0, ZR36057_SPGPPCR);
+	free_irq(zr->pci_dev->irq, zr);
+	/* unmap and free memory */
+	kfree((void *) zr->stat_com);
+	zoran_proc_cleanup(zr);
+	iounmap(zr->zr36057_mem);
+	pci_disable_device(zr->pci_dev);
+	video_unregister_device(zr->video_dev);
+}
+
+void
+zoran_vdev_release (struct video_device *vdev)
+{
+	kfree(vdev);
+}
+
+static struct videocodec_master * __devinit
+zoran_setup_videocodec (struct zoran *zr,
+			int           type)
+{
+	struct videocodec_master *m = NULL;
+
+	m = kmalloc(sizeof(struct videocodec_master), GFP_KERNEL);
+	if (!m) {
+		dprintk(1,
+			KERN_ERR
+			"%s: zoran_setup_videocodec() - no memory\n",
+			ZR_DEVNAME(zr));
+		return m;
+	}
+
+	m->magic = 0L; /* magic not used */
+	m->type = VID_HARDWARE_ZR36067;
+	m->flags = CODEC_FLAG_ENCODER | CODEC_FLAG_DECODER;
+	strncpy(m->name, ZR_DEVNAME(zr), sizeof(m->name));
+	m->data = zr;
+
+	switch (type)
+	{
+	case CODEC_TYPE_ZR36060:
+		m->readreg = zr36060_read;
+		m->writereg = zr36060_write;
+		m->flags |= CODEC_FLAG_JPEG | CODEC_FLAG_VFE;
+		break;
+	case CODEC_TYPE_ZR36050:
+		m->readreg = zr36050_read;
+		m->writereg = zr36050_write;
+		m->flags |= CODEC_FLAG_JPEG;
+		break;
+	case CODEC_TYPE_ZR36016:
+		m->readreg = zr36016_read;
+		m->writereg = zr36016_write;
+		m->flags |= CODEC_FLAG_VFE;
+		break;
+	}
+
+	return m;
+}
+
+/*
+ *   Scan for a Buz card (actually for the PCI contoler ZR36057),
+ *   request the irq and map the io memory
+ */
+static int __devinit
+find_zr36057 (void)
+{
+	unsigned char latency, need_latency;
+	struct zoran *zr;
+	struct pci_dev *dev = NULL;
+	int result;
+	struct videocodec_master *master_vfe = NULL;
+	struct videocodec_master *master_codec = NULL;
+	int card_num;
+	char *i2c_enc_name, *i2c_dec_name, *codec_name, *vfe_name;
+
+	zoran_num = 0;
+	while (zoran_num < BUZ_MAX &&
+	       (dev =
+		pci_find_device(PCI_VENDOR_ID_ZORAN,
+				PCI_DEVICE_ID_ZORAN_36057, dev)) != NULL) {
+		card_num = card[zoran_num];
+		zr = &zoran[zoran_num];
+		memset(zr, 0, sizeof(struct zoran));	// Just in case if previous cycle failed
+		zr->pci_dev = dev;
+		//zr->zr36057_mem = NULL;
+		zr->id = zoran_num;
+		snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id);
+		spin_lock_init(&zr->spinlock);
+		init_MUTEX(&zr->resource_lock);
+		if (pci_enable_device(dev))
+			continue;
+		zr->zr36057_adr = pci_resource_start(zr->pci_dev, 0);
+		pci_read_config_byte(zr->pci_dev, PCI_CLASS_REVISION,
+				     &zr->revision);
+		if (zr->revision < 2) {
+			dprintk(1,
+				KERN_INFO
+				"%s: Zoran ZR36057 (rev %d) irq: %d, memory: 0x%08x.\n",
+				ZR_DEVNAME(zr), zr->revision, zr->pci_dev->irq,
+				zr->zr36057_adr);
+
+			if (card_num == -1) {
+				dprintk(1,
+					KERN_ERR
+					"%s: find_zr36057() - no card specified, please use the card=X insmod option\n",
+					ZR_DEVNAME(zr));
+				continue;
+			}
+		} else {
+			int i;
+			unsigned short ss_vendor, ss_device;
+
+			ss_vendor = zr->pci_dev->subsystem_vendor;
+			ss_device = zr->pci_dev->subsystem_device;
+			dprintk(1,
+				KERN_INFO
+				"%s: Zoran ZR36067 (rev %d) irq: %d, memory: 0x%08x\n",
+				ZR_DEVNAME(zr), zr->revision, zr->pci_dev->irq,
+				zr->zr36057_adr);
+			dprintk(1,
+				KERN_INFO
+				"%s: subsystem vendor=0x%04x id=0x%04x\n",
+				ZR_DEVNAME(zr), ss_vendor, ss_device);
+			if (card_num == -1) {
+				dprintk(3,
+					KERN_DEBUG
+					"%s: find_zr36057() - trying to autodetect card type\n",
+					ZR_DEVNAME(zr));
+				for (i=0;i<NUM_CARDS;i++) {
+					if (ss_vendor == zoran_cards[i].vendor_id &&
+					    ss_device == zoran_cards[i].device_id) {
+						dprintk(3,
+							KERN_DEBUG
+							"%s: find_zr36057() - card %s detected\n",
+							ZR_DEVNAME(zr),
+							zoran_cards[i].name);
+						card_num = i;
+						break;
+					}
+				}
+				if (i == NUM_CARDS) {
+					dprintk(1,
+						KERN_ERR
+						"%s: find_zr36057() - unknown card\n",
+						ZR_DEVNAME(zr));
+					continue;
+				}
+			}
+		}
+
+		if (card_num < 0 || card_num >= NUM_CARDS) {
+			dprintk(2,
+				KERN_ERR
+				"%s: find_zr36057() - invalid cardnum %d\n",
+				ZR_DEVNAME(zr), card_num);
+			continue;
+		}
+
+		/* even though we make this a non pointer and thus
+		 * theoretically allow for making changes to this struct
+		 * on a per-individual card basis at runtime, this is
+		 * strongly discouraged. This structure is intended to
+		 * keep general card information, no settings or anything */
+		zr->card = zoran_cards[card_num];
+		snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)),
+			 "%s[%u]", zr->card.name, zr->id);
+
+		zr->zr36057_mem = ioremap_nocache(zr->zr36057_adr, 0x1000);
+		if (!zr->zr36057_mem) {
+			dprintk(1,
+				KERN_ERR
+				"%s: find_zr36057() - ioremap failed\n",
+				ZR_DEVNAME(zr));
+			continue;
+		}
+
+		result = request_irq(zr->pci_dev->irq,
+				     zoran_irq,
+				     SA_SHIRQ | SA_INTERRUPT,
+				     ZR_DEVNAME(zr),
+				     (void *) zr);
+		if (result < 0) {
+			if (result == -EINVAL) {
+				dprintk(1,
+					KERN_ERR
+					"%s: find_zr36057() - bad irq number or handler\n",
+					ZR_DEVNAME(zr));
+			} else if (result == -EBUSY) {
+				dprintk(1,
+					KERN_ERR
+					"%s: find_zr36057() - IRQ %d busy, change your PnP config in BIOS\n",
+					ZR_DEVNAME(zr), zr->pci_dev->irq);
+			} else {
+				dprintk(1,
+					KERN_ERR
+					"%s: find_zr36057() - can't assign irq, error code %d\n",
+					ZR_DEVNAME(zr), result);
+			}
+			goto zr_unmap;
+		}
+
+		/* set PCI latency timer */
+		pci_read_config_byte(zr->pci_dev, PCI_LATENCY_TIMER,
+				     &latency);
+		need_latency = zr->revision > 1 ? 32 : 48;
+		if (latency != need_latency) {
+			dprintk(2,
+				KERN_INFO
+				"%s: Changing PCI latency from %d to %d.\n",
+				ZR_DEVNAME(zr), latency, need_latency);
+			pci_write_config_byte(zr->pci_dev,
+					      PCI_LATENCY_TIMER,
+					      need_latency);
+		}
+
+		zr36057_restart(zr);
+		/* i2c */
+		dprintk(2, KERN_INFO "%s: Initializing i2c bus...\n",
+			ZR_DEVNAME(zr));
+
+		/* i2c decoder */
+		if (decoder[zr->id] != -1) {
+			i2c_dec_name = i2cid_to_modulename(decoder[zr->id]);
+			zr->card.i2c_decoder = decoder[zr->id];
+		} else if (zr->card.i2c_decoder != 0) {
+			i2c_dec_name =
+				i2cid_to_modulename(zr->card.i2c_decoder);
+		} else {
+			i2c_dec_name = NULL;
+		}
+
+		if (i2c_dec_name) {
+			if ((result = request_module(i2c_dec_name)) < 0) {
+				dprintk(1,
+					KERN_ERR
+					"%s: failed to load module %s: %d\n",
+					ZR_DEVNAME(zr), i2c_dec_name, result);
+			}
+		}
+
+		/* i2c encoder */
+		if (encoder[zr->id] != -1) {
+			i2c_enc_name = i2cid_to_modulename(encoder[zr->id]);
+			zr->card.i2c_encoder = encoder[zr->id];
+		} else if (zr->card.i2c_encoder != 0) {
+			i2c_enc_name =
+				i2cid_to_modulename(zr->card.i2c_encoder);
+		} else {
+			i2c_enc_name = NULL;
+		}
+
+		if (i2c_enc_name) {
+			if ((result = request_module(i2c_enc_name)) < 0) {
+				dprintk(1,
+					KERN_ERR
+					"%s: failed to load module %s: %d\n",
+					ZR_DEVNAME(zr), i2c_enc_name, result);
+			}
+		}
+
+		if (zoran_register_i2c(zr) < 0) {
+			dprintk(1,
+				KERN_ERR
+				"%s: find_zr36057() - can't initialize i2c bus\n",
+				ZR_DEVNAME(zr));
+			goto zr_free_irq;
+		}
+
+		dprintk(2,
+			KERN_INFO "%s: Initializing videocodec bus...\n",
+			ZR_DEVNAME(zr));
+
+		if (zr->card.video_codec != 0 &&
+		    (codec_name =
+		     codecid_to_modulename(zr->card.video_codec)) != NULL) {
+			if ((result = request_module(codec_name)) < 0) {
+				dprintk(1,
+					KERN_ERR
+					"%s: failed to load modules %s: %d\n",
+					ZR_DEVNAME(zr), codec_name, result);
+			}
+		}
+		if (zr->card.video_vfe != 0 &&
+		    (vfe_name =
+		     codecid_to_modulename(zr->card.video_vfe)) != NULL) {
+			if ((result = request_module(vfe_name)) < 0) {
+				dprintk(1,
+					KERN_ERR
+					"%s: failed to load modules %s: %d\n",
+					ZR_DEVNAME(zr), vfe_name, result);
+			}
+		}
+
+		/* reset JPEG codec */
+		jpeg_codec_sleep(zr, 1);
+		jpeg_codec_reset(zr);
+		/* video bus enabled */
+		/* display codec revision */
+		if (zr->card.video_codec != 0) {
+			master_codec = zoran_setup_videocodec(zr,
+							      zr->card.video_codec);
+			if (!master_codec)
+				goto zr_unreg_i2c;
+			zr->codec = videocodec_attach(master_codec);
+			if (!zr->codec) {
+				dprintk(1,
+					KERN_ERR
+					"%s: find_zr36057() - no codec found\n",
+					ZR_DEVNAME(zr));
+				goto zr_free_codec;
+			}
+			if (zr->codec->type != zr->card.video_codec) {
+				dprintk(1,
+					KERN_ERR
+					"%s: find_zr36057() - wrong codec\n",
+					ZR_DEVNAME(zr));
+				goto zr_detach_codec;
+			}
+		}
+		if (zr->card.video_vfe != 0) {
+			master_vfe = zoran_setup_videocodec(zr,
+							    zr->card.video_vfe);
+			if (!master_vfe)
+				goto zr_detach_codec;
+			zr->vfe = videocodec_attach(master_vfe);
+			if (!zr->vfe) {
+				dprintk(1,
+					KERN_ERR
+					"%s: find_zr36057() - no VFE found\n",
+					ZR_DEVNAME(zr));
+				goto zr_free_vfe;
+			}
+			if (zr->vfe->type != zr->card.video_vfe) {
+				dprintk(1,
+					KERN_ERR
+					"%s: find_zr36057() = wrong VFE\n",
+					ZR_DEVNAME(zr));
+				goto zr_detach_vfe;
+			}
+		}
+
+		zoran_num++;
+		continue;
+
+		// Init errors
+	      zr_detach_vfe:
+		videocodec_detach(zr->vfe);
+	      zr_free_vfe:
+		kfree(master_vfe);
+	      zr_detach_codec:
+		videocodec_detach(zr->codec);
+	      zr_free_codec:
+		kfree(master_codec);
+	      zr_unreg_i2c:
+		zoran_unregister_i2c(zr);
+	      zr_free_irq:
+		btwrite(0, ZR36057_SPGPPCR);
+		free_irq(zr->pci_dev->irq, zr);
+	      zr_unmap:
+		iounmap(zr->zr36057_mem);
+		continue;
+	}
+	if (zoran_num == 0) {
+		dprintk(1, KERN_INFO "No known MJPEG cards found.\n");
+	}
+	return zoran_num;
+}
+
+static int __init
+init_dc10_cards (void)
+{
+	int i;
+
+	memset(zoran, 0, sizeof(zoran));
+	printk(KERN_INFO "Zoran MJPEG board driver version %d.%d.%d\n",
+	       MAJOR_VERSION, MINOR_VERSION, RELEASE_VERSION);
+
+	/* Look for cards */
+	if (find_zr36057() < 0) {
+		return -EIO;
+	}
+	if (zoran_num == 0)
+		return -ENODEV;
+	dprintk(1, KERN_INFO "%s: %d card(s) found\n", ZORAN_NAME,
+		zoran_num);
+	/* check the parameters we have been given, adjust if necessary */
+	if (v4l_nbufs < 2)
+		v4l_nbufs = 2;
+	if (v4l_nbufs > VIDEO_MAX_FRAME)
+		v4l_nbufs = VIDEO_MAX_FRAME;
+	/* The user specfies the in KB, we want them in byte
+	 * (and page aligned) */
+	v4l_bufsize = PAGE_ALIGN(v4l_bufsize * 1024);
+	if (v4l_bufsize < 32768)
+		v4l_bufsize = 32768;
+	/* 2 MB is arbitrary but sufficient for the maximum possible images */
+	if (v4l_bufsize > 2048 * 1024)
+		v4l_bufsize = 2048 * 1024;
+	if (jpg_nbufs < 4)
+		jpg_nbufs = 4;
+	if (jpg_nbufs > BUZ_MAX_FRAME)
+		jpg_nbufs = BUZ_MAX_FRAME;
+	jpg_bufsize = PAGE_ALIGN(jpg_bufsize * 1024);
+	if (jpg_bufsize < 8192)
+		jpg_bufsize = 8192;
+	if (jpg_bufsize > (512 * 1024))
+		jpg_bufsize = 512 * 1024;
+	/* Use parameter for vidmem or try to find a video card */
+	if (vidmem) {
+		dprintk(1,
+			KERN_INFO
+			"%s: Using supplied video memory base address @ 0x%lx\n",
+			ZORAN_NAME, vidmem);
+	}
+
+	/* random nonsense */
+	dprintk(5, KERN_DEBUG "Jotti is een held!\n");
+
+	/* some mainboards might not do PCI-PCI data transfer well */
+	if (pci_pci_problems & PCIPCI_FAIL) {
+		dprintk(1,
+			KERN_WARNING
+			"%s: chipset may not support reliable PCI-PCI DMA\n",
+			ZORAN_NAME);
+	}
+
+	/* take care of Natoma chipset and a revision 1 zr36057 */
+	for (i = 0; i < zoran_num; i++) {
+		struct zoran *zr = &zoran[i];
+
+		if (pci_pci_problems & PCIPCI_NATOMA && zr->revision <= 1) {
+			zr->jpg_buffers.need_contiguous = 1;
+			dprintk(1,
+				KERN_INFO
+				"%s: ZR36057/Natoma bug, max. buffer size is 128K\n",
+				ZR_DEVNAME(zr));
+		}
+
+		if (zr36057_init(zr) < 0) {
+			for (i = 0; i < zoran_num; i++)
+				zoran_release(&zoran[i]);
+			return -EIO;
+		}
+		zoran_proc_init(zr);
+	}
+
+	return 0;
+}
+
+static void __exit
+unload_dc10_cards (void)
+{
+	int i;
+
+	for (i = 0; i < zoran_num; i++)
+		zoran_release(&zoran[i]);
+}
+
+module_init(init_dc10_cards);
+module_exit(unload_dc10_cards);