Initial revision

1 files changed, 2550 insertions, 0 deletions

diff --git a/linux/drivers/media/video/cx88/cx88-video.c b/linux/drivers/media/video/cx88/cx88-video.c
new file mode 100644
index 000000000..e831b1c0d
--- /dev/null
+++ b/linux/drivers/media/video/cx88/cx88-video.c
@@ -0,0 +1,2550 @@
+/*
+ * device driver for Conexant 2388x based TV cards
+ * video4linux video interface
+ *
+ * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
+ *
+ *  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.
+ */
+
+#define __NO_VERSION__ 1
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <asm/div64.h>
+
+#include "cx88.h"
+
+MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
+MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
+MODULE_LICENSE("GPL");
+
+/* ------------------------------------------------------------------ */
+
+static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+MODULE_PARM(video_nr,"1-" __stringify(CX88_MAXBOARDS) "i");
+MODULE_PARM_DESC(video_nr,"video device numbers");
+
+static unsigned int vbi_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+MODULE_PARM(vbi_nr,"1-" __stringify(CX88_MAXBOARDS) "i");
+MODULE_PARM_DESC(vbi_nr,"vbi device numbers");
+
+static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+MODULE_PARM(radio_nr,"1-" __stringify(CX88_MAXBOARDS) "i");
+MODULE_PARM_DESC(radio_nr,"radio device numbers");
+
+static unsigned int latency = UNSET;
+MODULE_PARM(latency,"i");
+MODULE_PARM_DESC(latency,"pci latency timer");
+
+static unsigned int video_debug = 0;
+MODULE_PARM(video_debug,"i");
+MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
+
+static unsigned int irq_debug = 0;
+MODULE_PARM(irq_debug,"i");
+MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
+
+static unsigned int vid_limit = 16;
+MODULE_PARM(vid_limit,"i");
+MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
+
+static unsigned int tuner[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+MODULE_PARM(tuner,"1-" __stringify(CX88_MAXBOARDS) "i");
+MODULE_PARM_DESC(tuner,"tuner type");
+
+static unsigned int card[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+MODULE_PARM(card,"1-" __stringify(CX88_MAXBOARDS) "i");
+MODULE_PARM_DESC(card,"card type");
+
+static unsigned int nicam = 0;
+MODULE_PARM(nicam,"i");
+MODULE_PARM_DESC(nicam,"tv audio is nicam");
+
+#define dprintk(level,fmt, arg...)	if (video_debug >= level) \
+	printk(KERN_DEBUG "%s: " fmt, dev->name , ## arg)
+
+/* ------------------------------------------------------------------ */
+
+static struct list_head  cx8800_devlist;
+static unsigned int      cx8800_devcount;
+
+/* ------------------------------------------------------------------- */
+/* static data                                                         */
+
+static unsigned int inline norm_swidth(struct cx8800_tvnorm *norm)
+{
+	return (norm->id & V4L2_STD_625_50) ? 922 : 754;
+}
+
+static unsigned int inline norm_hdelay(struct cx8800_tvnorm *norm)
+{
+	return (norm->id & V4L2_STD_625_50) ? 186 : 135;
+}
+
+static unsigned int inline norm_vdelay(struct cx8800_tvnorm *norm)
+{
+	return (norm->id & V4L2_STD_625_50) ? 0x24 : 0x18;
+}
+
+static unsigned int inline norm_maxw(struct cx8800_tvnorm *norm)
+{
+	return (norm->id & V4L2_STD_625_50) ? 768 : 640;
+//	return (norm->id & V4L2_STD_625_50) ? 720 : 640;
+}
+
+static unsigned int inline norm_maxh(struct cx8800_tvnorm *norm)
+{
+	return (norm->id & V4L2_STD_625_50) ? 576 : 480;
+}
+
+static unsigned int inline norm_fsc8(struct cx8800_tvnorm *norm)
+{
+	static const unsigned int ntsc = 28636360;
+	static const unsigned int pal  = 35468950;
+	
+	return (norm->id & V4L2_STD_625_50) ? pal : ntsc;
+}
+
+static unsigned int inline norm_notchfilter(struct cx8800_tvnorm *norm)
+{
+	return (norm->id & V4L2_STD_625_50)
+		? HLNotchFilter135PAL
+		: HLNotchFilter135NTSC;
+}
+
+static unsigned int inline norm_htotal(struct cx8800_tvnorm *norm)
+{
+	return (norm->id & V4L2_STD_625_50) ? 1135 : 910;
+}
+
+static unsigned int inline norm_vbipack(struct cx8800_tvnorm *norm)
+{
+	return (norm->id & V4L2_STD_625_50) ? 255 : 144;
+}
+
+static struct cx8800_tvnorm tvnorms[] = {
+	{
+		.name      = "NTSC-M",
+		.id        = V4L2_STD_NTSC_M,
+		.cxiformat = VideoFormatNTSC,
+		.cxoformat = 0x181f0008,
+	},{
+		.name      = "NTSC-JP",
+		.id        = V4L2_STD_NTSC_M_JP,
+		.cxiformat = VideoFormatNTSCJapan,
+		.cxoformat = 0x181f0008,
+#if 0
+	},{
+		.name      = "NTSC-4.43",
+		.id        = FIXME,
+		.cxiformat = VideoFormatNTSC443,
+		.cxoformat = 0x181f0008,
+#endif
+	},{
+		.name      = "PAL-BG",
+		.id        = V4L2_STD_PAL_BG,
+		.cxiformat = VideoFormatPAL,
+		.cxoformat = 0x181f0008,
+	},{
+		.name      = "PAL-DK",
+		.id        = V4L2_STD_PAL_DK,
+		.cxiformat = VideoFormatPAL,
+		.cxoformat = 0x181f0008,
+	},{
+		.name      = "PAL-I",
+		.id        = V4L2_STD_PAL_I,
+		.cxiformat = VideoFormatPAL,
+		.cxoformat = 0x181f0008,
+        },{
+		.name      = "PAL-M",
+		.id        = V4L2_STD_PAL_M,
+		.cxiformat = VideoFormatPALM,
+		.cxoformat = 0x1c1f0008,
+	},{
+		.name      = "PAL-N",
+		.id        = V4L2_STD_PAL_N,
+		.cxiformat = VideoFormatPALN,
+		.cxoformat = 0x1c1f0008,
+	},{
+		.name      = "PAL-Nc",
+		.id        = V4L2_STD_PAL_Nc,
+		.cxiformat = VideoFormatPALNC,
+		.cxoformat = 0x1c1f0008,
+	},{
+		.name      = "PAL-60",
+		.id        = V4L2_STD_PAL_60,
+		.cxiformat = VideoFormatPAL60,
+		.cxoformat = 0x181f0008,
+	},{
+		.name      = "SECAM",
+		.id        = V4L2_STD_SECAM,
+		.cxiformat = VideoFormatSECAM,
+		.cxoformat = 0x181f0008,
+	}
+};
+
+static struct cx8800_fmt formats[] = {
+	{
+		.name     = "8 bpp, gray",
+		.fourcc   = V4L2_PIX_FMT_GREY,
+		.cxformat = ColorFormatY8,
+		.depth    = 8,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "15 bpp RGB, le",
+		.fourcc   = V4L2_PIX_FMT_RGB555,
+		.cxformat = ColorFormatRGB15,
+		.depth    = 16,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "15 bpp RGB, be",
+		.fourcc   = V4L2_PIX_FMT_RGB555X,
+		.cxformat = ColorFormatRGB15 | ColorFormatBSWAP,
+		.depth    = 16,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "16 bpp RGB, le",
+		.fourcc   = V4L2_PIX_FMT_RGB565,
+		.cxformat = ColorFormatRGB16,
+		.depth    = 16,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "16 bpp RGB, be",
+		.fourcc   = V4L2_PIX_FMT_RGB565X,
+		.cxformat = ColorFormatRGB16 | ColorFormatBSWAP,
+		.depth    = 16,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "24 bpp RGB, le",
+		.fourcc   = V4L2_PIX_FMT_BGR24,
+		.cxformat = ColorFormatRGB24,
+		.depth    = 24,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "32 bpp RGB, le",
+		.fourcc   = V4L2_PIX_FMT_BGR32,
+		.cxformat = ColorFormatRGB32,
+		.depth    = 32,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "32 bpp RGB, be",
+		.fourcc   = V4L2_PIX_FMT_RGB32,
+		.cxformat = ColorFormatRGB32 | ColorFormatBSWAP | ColorFormatWSWAP,
+		.depth    = 32,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "4:2:2, packed, YUYV",
+		.fourcc   = V4L2_PIX_FMT_YUYV,
+		.cxformat = ColorFormatYUY2,
+		.depth    = 16,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},{
+		.name     = "4:2:2, packed, UYVY",
+		.fourcc   = V4L2_PIX_FMT_UYVY,
+		.cxformat = ColorFormatYUY2 | ColorFormatBSWAP,
+		.depth    = 16,
+		.flags    = FORMAT_FLAGS_PACKED,
+	},
+};
+
+static struct cx8800_fmt* format_by_fourcc(unsigned int fourcc)
+{
+	unsigned int i;
+	
+	for (i = 0; i < ARRAY_SIZE(formats); i++)
+		if (formats[i].fourcc == fourcc)
+			return formats+i;
+	return NULL;
+}
+
+/* ------------------------------------------------------------------- */
+
+static const struct v4l2_queryctrl no_ctl = {
+	.name  = "42",
+	.flags = V4L2_CTRL_FLAG_DISABLED,
+};
+
+static struct cx88_ctrl cx8800_ctls[] = {
+	/* --- video --- */
+	{
+		.v = {
+			.id            = V4L2_CID_BRIGHTNESS,
+			.name          = "Brightness",
+			.minimum       = 0x00,
+			.maximum       = 0xff,
+			.step          = 1,
+			.default_value = 0,
+			.type          = V4L2_CTRL_TYPE_INTEGER,
+		},
+		.off                   = 128,
+		.reg                   = MO_CONTR_BRIGHT,
+		.mask                  = 0x00ff,
+		.shift                 = 0,
+	},{
+		.v = {
+			.id            = V4L2_CID_CONTRAST,
+			.name          = "Contrast",
+			.minimum       = 0,
+			.maximum       = 0xff,
+			.step          = 1,
+			.default_value = 0,
+			.type          = V4L2_CTRL_TYPE_INTEGER,
+		},
+		.reg                   = MO_CONTR_BRIGHT,
+		.mask                  = 0xff00,
+		.shift                 = 8,
+	},{
+		.v = {
+			.id            = V4L2_CID_HUE,
+			.name          = "Hue",
+			.minimum       = 0,
+			.maximum       = 0xff,
+			.step          = 1,
+			.default_value = 0,
+			.type          = V4L2_CTRL_TYPE_INTEGER,
+		},
+		.off                   = 0,
+		.reg                   = MO_HUE,
+		.mask                  = 0x00ff,
+		.shift                 = 0,
+	},{
+		/* strictly, this only describes only U saturation.
+		 * V saturation is handled specially through code.
+		 */
+		.v = {
+			.id            = V4L2_CID_SATURATION,
+			.name          = "Saturation", 
+			.minimum       = 0,
+			.maximum       = 0xff,
+			.step          = 1,
+			.default_value = 0,
+			.type          = V4L2_CTRL_TYPE_INTEGER,
+		},
+		.off                   = 0,
+		.reg                   = MO_UV_SATURATION,
+		.mask                  = 0x00ff,
+		.shift                 = 0,
+	},{
+	/* --- audio --- */
+		.v = {
+			.id            = V4L2_CID_AUDIO_MUTE,
+			.name          = "Mute",
+			.minimum       = 0,
+			.maximum       = 1,
+			.type          = V4L2_CTRL_TYPE_BOOLEAN,
+		},
+		.reg                   = AUD_VOL_CTL,
+		.sreg                  = SHADOW_AUD_VOL_CTL,
+		.mask                  = (1 << 6),
+		.shift                 = 6,
+	},{
+		.v = {
+			.id            = V4L2_CID_AUDIO_VOLUME,
+			.name          = "Volume",
+			.minimum       = 0,
+			.maximum       = 0x3f,
+			.step          = 1,
+			.default_value = 0,
+			.type          = V4L2_CTRL_TYPE_INTEGER,
+		},
+		.reg                   = AUD_VOL_CTL,
+		.sreg                  = SHADOW_AUD_VOL_CTL,
+		.mask                  = 0x3f,
+		.shift                 = 0,
+	},{
+		.v = {
+			.id            = V4L2_CID_AUDIO_BALANCE,
+			.name          = "Balance",
+			.minimum       = 0,
+			.maximum       = 0x7f,
+			.step          = 1,
+			.default_value = 0x40,
+			.type          = V4L2_CTRL_TYPE_INTEGER,
+		},
+		.reg                   = AUD_BAL_CTL,
+		.sreg                  = SHADOW_AUD_BAL_CTL,
+		.mask                  = 0x7f,
+		.shift                 = 0,
+	}
+};
+const int CX8800_CTLS = ARRAY_SIZE(cx8800_ctls);
+
+/* ------------------------------------------------------------------- */
+/* resource management                                                 */
+
+static int res_get(struct cx8800_dev *dev, struct cx8800_fh *fh, unsigned int bit)
+{
+	if (fh->resources & bit)
+		/* have it already allocated */
+		return 1;
+
+	/* is it free? */
+	down(&dev->lock);
+	if (dev->resources & bit) {
+		/* no, someone else uses it */
+		up(&dev->lock);
+		return 0;
+	}
+	/* it's free, grab it */
+	fh->resources  |= bit;
+	dev->resources |= bit;
+	dprintk(1,"res: get %d\n",bit);
+	up(&dev->lock);
+	return 1;
+}
+
+static
+int res_check(struct cx8800_fh *fh, unsigned int bit)
+{
+	return (fh->resources & bit);
+}
+
+static
+int res_locked(struct cx8800_dev *dev, unsigned int bit)
+{
+	return (dev->resources & bit);
+}
+
+static
+void res_free(struct cx8800_dev *dev, struct cx8800_fh *fh, unsigned int bits)
+{
+	if ((fh->resources & bits) != bits)
+		BUG();
+
+	down(&dev->lock);
+	fh->resources  &= ~bits;
+	dev->resources &= ~bits;
+	dprintk(1,"res: put %d\n",bits);
+	up(&dev->lock);
+}
+
+/* ------------------------------------------------------------------ */
+
+static const u32 xtal = 28636363;
+
+static int set_pll(struct cx8800_dev *dev, int prescale, u32 ofreq)
+{
+	static u32 pre[] = { 0, 0, 0, 3, 2, 1 };
+	u64 pll;
+	u32 reg;
+	int i;
+
+	if (prescale < 2)
+		prescale = 2;
+	if (prescale > 5)
+		prescale = 5;
+
+	pll = ofreq * 8 * prescale * (u64)(1 << 20);
+	do_div(pll,xtal);
+	reg = (pll & 0x3ffffff) | (pre[prescale] << 26);
+	if (((reg >> 20) & 0x3f) < 14) {
+		printk("%s: pll out of range\n",dev->name);
+		return -1;
+	}
+		
+	dprintk(1,"set_pll:    MO_PLL_REG       0x%08x [old=0x%08x,freq=%d]\n",
+		reg, cx_read(MO_PLL_REG), ofreq);
+	cx_write(MO_PLL_REG, reg);
+	for (i = 0; i < 10; i++) {
+		reg = cx_read(MO_DEVICE_STATUS);
+		if (reg & (1<<2)) {
+			dprintk(1,"pll locked [pre=%d,ofreq=%d]\n",
+				prescale,ofreq);
+			return 0;
+		}
+		dprintk(1,"pll not locked yet, waiting ...\n");
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(HZ/10);
+	}
+	dprintk(1,"pll NOT locked [pre=%d,ofreq=%d]\n",prescale,ofreq);
+	return -1;
+}
+
+static int set_tvaudio(struct cx8800_dev *dev)
+{
+	if (CX88_VMUX_TELEVISION != INPUT(dev->input)->type)
+		return 0;
+
+	switch (dev->tvnorm->id) {
+	case V4L2_STD_PAL_BG:
+		dev->tvaudio = nicam ? WW_NICAM_BGDKL : WW_A2_BG;
+		break;
+	case V4L2_STD_PAL_DK:
+		dev->tvaudio = nicam ? WW_NICAM_BGDKL : WW_A2_DK;
+		break;
+	case V4L2_STD_PAL_I:
+		dev->tvaudio = WW_NICAM_I;
+		break;
+	case V4L2_STD_SECAM:
+		dev->tvaudio = WW_SYSTEM_L_AM;  /* FIXME: fr != ru */
+		break;
+	case V4L2_STD_NTSC_M:
+		dev->tvaudio = WW_BTSC;
+		break;
+	case V4L2_STD_NTSC_M_JP:
+		dev->tvaudio = WW_EIAJ;
+		break;
+	default:
+		dprintk(1,"tvaudio support needs work for this tv norm [%s], sorry\n",
+			dev->tvnorm->name);
+		dev->tvaudio = 0;
+		return 0;
+	}
+
+	cx_andor(MO_AFECFG_IO, 0x1f, 0x0);
+	cx88_set_tvaudio(dev);
+	cx88_set_stereo(dev,V4L2_TUNER_MODE_STEREO);
+
+	cx_write(MO_AUDD_LNGTH, 128/8);  /* fifo size */
+	cx_write(MO_AUDR_LNGTH, 128/8);  /* fifo size */
+	cx_write(MO_AUD_DMACNTRL, 0x03); /* need audio fifo */
+	return 0;
+}
+
+static int set_tvnorm(struct cx8800_dev *dev, struct cx8800_tvnorm *norm)
+{
+	u32 fsc8;
+	u32 adc_clock;
+	u32 vdec_clock;
+	u64 tmp64;
+	u32 bdelay,agcdelay,htotal;
+	struct video_channel c;
+	
+	dev->tvnorm = norm;
+	fsc8       = norm_fsc8(norm);
+	adc_clock  = xtal;
+	vdec_clock = fsc8;
+
+	dprintk(1,"set_tvnorm: \"%s\" fsc8=%d adc=%d vdec=%d\n",
+		norm->name, fsc8, adc_clock, vdec_clock);
+	set_pll(dev,2,vdec_clock);
+	
+	dprintk(1,"set_tvnorm: MO_INPUT_FORMAT  0x%08x [old=0x%08x]\n",
+		norm->cxiformat, cx_read(MO_INPUT_FORMAT) & 0x0f);
+	cx_andor(MO_INPUT_FORMAT, 0xf, norm->cxiformat);
+
+#if 1
+	// FIXME: as-is from DScaler
+	dprintk(1,"set_tvnorm: MO_OUTPUT_FORMAT 0x%08x [old=0x%08x]\n",
+		norm->cxoformat, cx_read(MO_OUTPUT_FORMAT));
+	cx_write(MO_OUTPUT_FORMAT, norm->cxoformat);
+#endif
+
+	// MO_SCONV_REG = adc clock / video dec clock * 2^17
+	tmp64  = adc_clock * (u64)(1 << 17);
+	do_div(tmp64, vdec_clock);
+	dprintk(1,"set_tvnorm: MO_SCONV_REG     0x%08x [old=0x%08x]\n",
+		(u32)tmp64, cx_read(MO_SCONV_REG));
+	cx_write(MO_SCONV_REG, (u32)tmp64);
+
+	// MO_SUB_STEP = 8 * fsc / video dec clock * 2^22
+	tmp64  = fsc8 * (u64)(1 << 22);
+	do_div(tmp64, vdec_clock);
+	dprintk(1,"set_tvnorm: MO_SUB_STEP      0x%08x [old=0x%08x]\n",
+		(u32)tmp64, cx_read(MO_SUB_STEP));
+	cx_write(MO_SUB_STEP, (u32)tmp64);
+
+	// MO_SUB_STEP_DR = 8 * 4406250 / video dec clock * 2^22
+	tmp64  = 4406250 * 8 * (u64)(1 << 22);
+	do_div(tmp64, vdec_clock);
+	dprintk(1,"set_tvnorm: MO_SUB_STEP_DR   0x%08x [old=0x%08x]\n",
+		(u32)tmp64, cx_read(MO_SUB_STEP_DR));
+	cx_write(MO_SUB_STEP_DR, (u32)tmp64);
+
+	// bdelay + agcdelay
+	bdelay   = vdec_clock * 65 / 20000000 + 21;
+	agcdelay = vdec_clock * 68 / 20000000 + 15;
+	dprintk(1,"set_tvnorm: MO_AGC_BURST     0x%08x [old=0x%08x,bdelay=%d,agcdelay=%d]\n",
+		(bdelay << 8) | agcdelay, cx_read(MO_AGC_BURST), bdelay, agcdelay);
+	cx_write(MO_AGC_BURST, (bdelay << 8) | agcdelay);
+
+	// htotal
+	tmp64 = norm_htotal(norm) * (u64)vdec_clock;
+	do_div(tmp64, fsc8);
+	htotal = (u32)tmp64 | (norm_notchfilter(norm) << 11);
+	dprintk(1,"set_tvnorm: MO_HTOTAL        0x%08x [old=0x%08x,htotal=%d]\n",
+		htotal, cx_read(MO_HTOTAL), (u32)tmp64);
+	cx_write(MO_HTOTAL, htotal);
+
+	// vbi stuff
+	cx_write(MO_VBI_PACKET, ( (1 << 11) | /* (norm_vdelay(norm)   << 11) | */
+				  (norm_vbipack(norm)  <<  0) ));
+	
+	// audio
+	set_tvaudio(dev);
+
+	// tell i2c chips
+	memset(&c,0,sizeof(c));
+	c.channel = dev->input;
+	c.norm = VIDEO_MODE_PAL;
+	if ((norm->id & (V4L2_STD_NTSC_M|V4L2_STD_NTSC_M_JP)))
+		c.norm = VIDEO_MODE_NTSC;
+	if (norm->id & V4L2_STD_SECAM)
+		c.norm = VIDEO_MODE_SECAM;
+	cx8800_call_i2c_clients(dev,VIDIOCSCHAN,&c);
+
+	// done
+	return 0;
+}
+
+static int set_scale(struct cx8800_dev *dev, unsigned int width, unsigned int height,
+		     int interlaced)
+{
+	unsigned int swidth  = norm_swidth(dev->tvnorm);
+	unsigned int sheight = norm_maxh(dev->tvnorm);
+	u32 value;
+
+	dprintk(1,"set_scale: %dx%d [%s]\n", width, height, dev->tvnorm->name);
+
+	// recalc H delay and scale registers
+	value = (width * norm_hdelay(dev->tvnorm)) / swidth;
+	cx_write(MO_HDELAY_EVEN,  value);
+	cx_write(MO_HDELAY_ODD,   value);
+	dprintk(1,"set_scale: hdelay  0x%04x\n", value);
+	
+	value = (swidth * 4096 / width) - 4096;
+	cx_write(MO_HSCALE_EVEN,  value);
+	cx_write(MO_HSCALE_ODD,   value);
+	dprintk(1,"set_scale: hscale  0x%04x\n", value);
+
+	cx_write(MO_HACTIVE_EVEN, width);
+	cx_write(MO_HACTIVE_ODD,  width);
+	dprintk(1,"set_scale: hactive 0x%04x\n", width);
+	
+	// recalc V scale Register (delay is constant)
+	cx_write(MO_VDELAY_EVEN, norm_vdelay(dev->tvnorm));
+	cx_write(MO_VDELAY_ODD,  norm_vdelay(dev->tvnorm));
+	dprintk(1,"set_scale: vdelay  0x%04x\n", norm_vdelay(dev->tvnorm));
+	
+	value = (0x10000 - (sheight * 512 / height - 512)) & 0x1fff;
+	cx_write(MO_VSCALE_EVEN,  value);
+	cx_write(MO_VSCALE_ODD,   value);
+	dprintk(1,"set_scale: vscale  0x%04x\n", value);
+
+	cx_write(MO_VACTIVE_EVEN, sheight);
+	cx_write(MO_VACTIVE_ODD,  sheight);
+	dprintk(1,"set_scale: vactive 0x%04x\n", sheight);
+
+	// setup filters
+	value = 0;
+	value |= (1 << 19);        // CFILT (default)
+	if (interlaced)
+		value |= (1 << 3); // VINT (interlaced vertical scaling)
+	if (width < 385)
+		value |= (1 << 0); // 3-tap interpolation
+	if (width < 193)
+		value |= (1 << 1); // 5-tap interpolation
+
+	cx_write(MO_FILTER_EVEN,  value);
+	cx_write(MO_FILTER_ODD,   value);
+	dprintk(1,"set_scale: filter  0x%04x\n", value);
+	
+	return 0;
+}
+
+static int video_mux(struct cx8800_dev *dev, unsigned int input)
+{
+	dprintk(1,"video_mux: %d [vmux=%d,gpio=0x%x]\n",
+		input, INPUT(input)->vmux, INPUT(input)->gpio0);
+	dev->input = input;
+	cx_andor(MO_INPUT_FORMAT, 0x03 << 14, INPUT(input)->vmux << 14);
+	cx_write(MO_GP0_IO, INPUT(input)->gpio0);
+	return 0;
+}
+
+/* ------------------------------------------------------------------ */
+
+static int start_video_dma(struct cx8800_dev    *dev,
+			   struct cx88_dmaqueue *q,
+			   struct cx88_buffer   *buf)
+{
+	/* setup fifo + format */
+	cx88_sram_channel_setup(dev, &cx88_sram_channels[SRAM_CH21],
+				buf->bpl, buf->risc.dma);
+	set_scale(dev, buf->vb.width, buf->vb.height, 1);
+	cx_write(MO_COLOR_CTRL, buf->fmt->cxformat | ColorFormatGamma);
+
+	/* reset counter */
+	cx_write(MO_VIDY_GPCNTRL,0x3);
+	q->count = 1;
+
+	/* enable irqs */
+	cx_set(MO_PCI_INTMSK, 0x00fc01);
+	cx_set(MO_VID_INTMSK, 0x0f0011);
+	
+	/* enable capture */
+	cx_set(VID_CAPTURE_CONTROL,0x06);
+	
+	/* start dma */
+	cx_set(MO_DEV_CNTRL2, (1<<5));
+	cx_set(MO_VID_DMACNTRL, 0x11);
+
+	return 0;
+}
+
+static int restart_video_queue(struct cx8800_dev    *dev,
+			       struct cx88_dmaqueue *q)
+{
+	struct cx88_buffer *buf, *prev;
+	struct list_head *item;
+	
+	if (!list_empty(&q->active)) {
+	        buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
+		dprintk(2,"restart_queue [%p/%d]: restart dma\n",
+			buf, buf->vb.i);
+		start_video_dma(dev, q, buf);
+		list_for_each(item,&q->active) {
+			buf = list_entry(item, struct cx88_buffer, vb.queue);
+			buf->count    = q->count++;
+		}
+		mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+		return 0;
+	}
+
+	prev = NULL;
+	for (;;) {
+		if (list_empty(&q->queued))
+			return 0;
+	        buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue);
+		if (NULL == prev) {
+			list_del(&buf->vb.queue);
+			list_add_tail(&buf->vb.queue,&q->active);
+			start_video_dma(dev, q, buf);
+			buf->vb.state = STATE_ACTIVE;
+			buf->count    = q->count++;
+			mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+			dprintk(2,"[%p/%d] restart_queue - first active\n",
+				buf,buf->vb.i);
+
+		} else if (prev->vb.width  == buf->vb.width  &&
+			   prev->vb.height == buf->vb.height &&
+			   prev->fmt       == buf->fmt) {
+			list_del(&buf->vb.queue);
+			list_add_tail(&buf->vb.queue,&q->active);
+			buf->vb.state = STATE_ACTIVE;
+			buf->count    = q->count++;
+			prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+			dprintk(2,"[%p/%d] restart_queue - move to active\n",
+				buf,buf->vb.i);
+		} else {
+			return 0;
+		}
+		prev = buf;
+	}
+}
+
+/* ------------------------------------------------------------------ */
+
+static int
+buffer_setup(struct file *file, unsigned int *count, unsigned int *size)
+{
+	struct cx8800_fh *fh = file->private_data;
+	
+	*size = fh->fmt->depth*fh->width*fh->height >> 3;
+	if (0 == *count)
+		*count = 32;
+	while (*size * *count > vid_limit * 1024 * 1024)
+		(*count)--;
+	return 0;
+}
+
+static int
+buffer_prepare(struct file *file, struct videobuf_buffer *vb,
+	       enum v4l2_field field)
+{
+	struct cx8800_fh   *fh  = file->private_data;
+	struct cx8800_dev  *dev = fh->dev;
+	struct cx88_buffer *buf = (struct cx88_buffer*)vb;
+	int rc, init_buffer = 0;
+
+	BUG_ON(NULL == fh->fmt);
+	if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
+	    fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
+		return -EINVAL;
+	buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
+	if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
+		return -EINVAL;
+
+	if (buf->fmt       != fh->fmt    ||
+	    buf->vb.width  != fh->width  ||
+	    buf->vb.height != fh->height ||
+	    buf->vb.field  != field) {
+		buf->fmt       = fh->fmt;
+		buf->vb.width  = fh->width;
+		buf->vb.height = fh->height;
+		buf->vb.field  = field;
+		init_buffer = 1;
+	}
+
+	if (STATE_NEEDS_INIT == buf->vb.state) {
+		init_buffer = 1;
+		if (0 != (rc = videobuf_iolock(dev->pci,&buf->vb,NULL)))
+			goto fail;
+	}
+
+	if (init_buffer) {
+		buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
+		switch (buf->vb.field) {
+		case V4L2_FIELD_TOP:
+			cx88_risc_buffer(dev->pci, &buf->risc,
+					 buf->vb.dma.sglist, 0, UNSET,
+					 buf->bpl, 0, buf->vb.height);
+			break;
+		case V4L2_FIELD_BOTTOM:
+			cx88_risc_buffer(dev->pci, &buf->risc,
+					 buf->vb.dma.sglist, UNSET, 0,
+					 buf->bpl, 0, buf->vb.height);
+			break;
+		case V4L2_FIELD_INTERLACED:
+			cx88_risc_buffer(dev->pci, &buf->risc,
+					 buf->vb.dma.sglist, 0, buf->bpl,
+					 buf->bpl, buf->bpl,
+					 buf->vb.height >> 1);
+			break;
+		case V4L2_FIELD_SEQ_TB:
+			cx88_risc_buffer(dev->pci, &buf->risc,
+					 buf->vb.dma.sglist,
+					 0, buf->bpl * (buf->vb.height >> 1),
+					 buf->bpl, 0,
+					 buf->vb.height >> 1);
+			break;
+		case V4L2_FIELD_SEQ_BT:
+			cx88_risc_buffer(dev->pci, &buf->risc,
+					 buf->vb.dma.sglist,
+					 buf->bpl * (buf->vb.height >> 1), 0,
+					 buf->bpl, 0,
+					 buf->vb.height >> 1);
+			break;
+		default:
+			BUG();
+		}
+	}
+	dprintk(2,"[%p/%d] buffer_prepare - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
+		buf, buf->vb.i,
+		fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
+		(unsigned long)buf->risc.dma);
+
+	buf->vb.state = STATE_PREPARED;
+	return 0;
+
+ fail:
+	cx88_free_buffer(dev->pci,buf);
+	return rc;
+}
+
+static void
+buffer_queue(struct file *file, struct videobuf_buffer *vb)
+{
+	struct cx88_buffer    *buf  = (struct cx88_buffer*)vb;
+	struct cx88_buffer    *prev;
+	struct cx8800_fh      *fh   = file->private_data;
+	struct cx8800_dev     *dev  = fh->dev;
+	struct cx88_dmaqueue  *q    = &dev->vidq;
+
+	/* add jump to stopper */
+	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | 0x10000);
+	buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
+
+	if (!list_empty(&q->queued)) {
+		list_add_tail(&buf->vb.queue,&q->queued);
+		buf->vb.state = STATE_QUEUED;
+		dprintk(2,"[%p/%d] buffer_queue - append to queued\n",
+			buf, buf->vb.i);
+
+	} else if (list_empty(&q->active)) {
+		list_add_tail(&buf->vb.queue,&q->active);
+		start_video_dma(dev, q, buf);
+		buf->vb.state = STATE_ACTIVE;
+		buf->count    = q->count++;
+		mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+		dprintk(2,"[%p/%d] buffer_queue - first active\n",
+			buf, buf->vb.i);
+
+	} else {
+		prev = list_entry(q->active.prev, struct cx88_buffer, vb.queue);
+		if (prev->vb.width  == buf->vb.width  &&
+		    prev->vb.height == buf->vb.height &&
+		    prev->fmt       == buf->fmt) {
+			list_add_tail(&buf->vb.queue,&q->active);
+			buf->vb.state = STATE_ACTIVE;
+			buf->count    = q->count++;
+			prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+			dprintk(2,"[%p/%d] buffer_queue - append to active\n",
+				buf, buf->vb.i);
+
+		} else {
+			list_add_tail(&buf->vb.queue,&q->queued);
+			buf->vb.state = STATE_QUEUED;
+			dprintk(2,"[%p/%d] buffer_queue - first queued\n",
+				buf, buf->vb.i);
+		}
+	}
+}
+
+static void buffer_release(struct file *file, struct videobuf_buffer *vb)
+{
+	struct cx88_buffer *buf = (struct cx88_buffer*)vb;
+	struct cx8800_fh   *fh  = file->private_data;
+
+	cx88_free_buffer(fh->dev->pci,buf);
+}
+
+struct videobuf_queue_ops cx8800_video_qops = {
+	.buf_setup    = buffer_setup,
+	.buf_prepare  = buffer_prepare,
+	.buf_queue    = buffer_queue,
+	.buf_release  = buffer_release,
+};
+
+/* ------------------------------------------------------------------ */
+
+#if 0 /* overlay support not finished yet */
+static u32* ov_risc_field(struct cx8800_dev *dev, struct cx8800_fh *fh,
+			  u32 *rp, struct btcx_skiplist *skips,
+			  u32 sync_line, int skip_even, int skip_odd)
+{
+	int line,maxy,start,end,skip,nskips;
+	u32 ri,ra;
+	u32 addr;
+
+	/* sync instruction */
+	*(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
+
+	addr  = (unsigned long)dev->fbuf.base;
+	addr += dev->fbuf.fmt.bytesperline * fh->win.w.top;
+	addr += (fh->fmt->depth >> 3)      * fh->win.w.left;
+
+	/* scan lines */
+	for (maxy = -1, line = 0; line < fh->win.w.height;
+	     line++, addr += dev->fbuf.fmt.bytesperline) {
+		if ((line%2) == 0  &&  skip_even)
+			continue;
+		if ((line%2) == 1  &&  skip_odd)
+			continue;
+
+		/* calculate clipping */
+		if (line > maxy)
+			btcx_calc_skips(line, fh->win.w.width, &maxy,
+					skips, &nskips, fh->clips, fh->nclips);
+
+		/* write out risc code */
+		for (start = 0, skip = 0; start < fh->win.w.width; start = end) {
+			if (skip >= nskips) {
+				ri  = RISC_WRITE;
+				end = fh->win.w.width;
+			} else if (start < skips[skip].start) {
+				ri  = RISC_WRITE;
+				end = skips[skip].start;
+			} else {
+				ri  = RISC_SKIP;
+				end = skips[skip].end;
+				skip++;
+			}
+			if (RISC_WRITE == ri)
+				ra = addr + (fh->fmt->depth>>3)*start;
+			else
+				ra = 0;
+				
+			if (0 == start)
+				ri |= RISC_SOL;
+			if (fh->win.w.width == end)
+				ri |= RISC_EOL;
+			ri |= (fh->fmt->depth>>3) * (end-start);
+
+			*(rp++)=cpu_to_le32(ri);
+			if (0 != ra)
+				*(rp++)=cpu_to_le32(ra);
+		}
+	}
+	kfree(skips);
+	return rp;
+}
+
+static int ov_risc_frame(struct cx8800_dev *dev, struct cx8800_fh *fh,
+			 struct cx88_buffer *buf)
+{
+	struct btcx_skiplist *skips;
+	u32 instructions,fields;
+	u32 *rp;
+	int rc;
+	
+	/* skip list for window clipping */
+	if (NULL == (skips = kmalloc(sizeof(*skips) * fh->nclips,GFP_KERNEL)))
+		return -ENOMEM;
+	
+	fields = 0;
+	if (V4L2_FIELD_HAS_TOP(fh->win.field))
+		fields++;
+	if (V4L2_FIELD_HAS_BOTTOM(fh->win.field))
+		fields++;
+
+        /* estimate risc mem: worst case is (clip+1) * lines instructions
+           + syncs + jump (all 2 dwords) */
+	instructions  = (fh->nclips+1) * fh->win.w.height;
+	instructions += 3 + 4;
+	if ((rc = btcx_riscmem_alloc(dev->pci,&buf->risc,instructions*8)) < 0) {
+		kfree(skips);
+		return rc;
+	}
+
+	/* write risc instructions */
+	rp = buf->risc.cpu;
+	switch (fh->win.field) {
+	case V4L2_FIELD_TOP:
+		rp = ov_risc_field(dev, fh, rp, skips, 0,     0, 0);
+		break;
+	case V4L2_FIELD_BOTTOM:
+		rp = ov_risc_field(dev, fh, rp, skips, 0x200, 0, 0);
+		break;
+	case V4L2_FIELD_INTERLACED:
+		rp = ov_risc_field(dev, fh, rp, skips, 0,     0, 1);
+		rp = ov_risc_field(dev, fh, rp, skips, 0x200, 1, 0);
+		break;
+	default:
+		BUG();
+	}
+
+	/* save pointer to jmp instruction address */
+	buf->risc.jmp = rp;
+	kfree(skips);
+	return 0;
+}
+
+static int verify_window(struct cx8800_dev *dev, struct v4l2_window *win)
+{
+	enum v4l2_field field;
+	int maxw, maxh;
+
+	if (NULL == dev->fbuf.base)
+		return -EINVAL;
+	if (win->w.width < 48 || win->w.height <  32)
+		return -EINVAL;
+	if (win->clipcount > 2048)
+		return -EINVAL;
+
+	field = win->field;
+	maxw  = norm_maxw(dev->tvnorm);
+	maxh  = norm_maxh(dev->tvnorm);
+
+	if (V4L2_FIELD_ANY == field) {
+                field = (win->w.height > maxh/2)
+                        ? V4L2_FIELD_INTERLACED
+                        : V4L2_FIELD_TOP;
+        }
+        switch (field) {
+        case V4L2_FIELD_TOP:
+        case V4L2_FIELD_BOTTOM:
+                maxh = maxh / 2;
+                break;
+        case V4L2_FIELD_INTERLACED:
+                break;
+        default:
+                return -EINVAL;
+        }
+
+	win->field = field;
+	if (win->w.width > maxw)
+		win->w.width = maxw;
+	if (win->w.height > maxh)
+		win->w.height = maxh;
+	return 0;
+}
+
+static int setup_window(struct cx8800_dev *dev, struct cx8800_fh *fh,
+			struct v4l2_window *win)
+{
+	struct v4l2_clip *clips = NULL;
+	int n,size,retval = 0;
+
+	if (NULL == fh->fmt)
+		return -EINVAL;
+	retval = verify_window(dev,win);
+	if (0 != retval)
+		return retval;
+
+	/* copy clips  --  luckily v4l1 + v4l2 are binary
+	   compatible here ...*/
+	n = win->clipcount;
+	size = sizeof(*clips)*(n+4);
+	clips = kmalloc(size,GFP_KERNEL);
+	if (NULL == clips)
+		return -ENOMEM;
+	if (n > 0) {
+		if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
+			kfree(clips);
+			return -EFAULT;
+		}
+	}
+
+	/* clip against screen */
+	if (NULL != dev->fbuf.base)
+		n = btcx_screen_clips(dev->fbuf.fmt.width, dev->fbuf.fmt.height,
+				      &win->w, clips, n);
+	btcx_sort_clips(clips,n);
+
+	/* 4-byte alignments */
+	switch (fh->fmt->depth) {
+	case 8:
+	case 24:
+		btcx_align(&win->w, clips, n, 3);
+		break;
+	case 16:
+		btcx_align(&win->w, clips, n, 1);
+		break;
+	case 32:
+		/* no alignment fixups needed */
+		break;
+	default:
+		BUG();
+	}
+	
+	down(&fh->vidq.lock);
+	if (fh->clips)
+		kfree(fh->clips);
+	fh->clips    = clips;
+	fh->nclips   = n;
+	fh->win      = *win;
+#if 0
+	fh->ov.setup_ok = 1;
+#endif
+	
+	/* update overlay if needed */
+	retval = 0;
+#if 0
+	if (check_btres(fh, RESOURCE_OVERLAY)) {
+		struct bttv_buffer *new;
+		
+		new = videobuf_alloc(sizeof(*new));
+		bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
+		retval = bttv_switch_overlay(btv,fh,new);
+	}
+#endif
+	up(&fh->vidq.lock);
+	return retval;
+}
+#endif
+
+/* ------------------------------------------------------------------ */
+
+static struct videobuf_queue* get_queue(struct cx8800_fh *fh)
+{
+	switch (fh->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		return &fh->vidq;
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		return &fh->vbiq;
+	default:
+		BUG();
+		return NULL;
+	}
+}
+
+static int get_ressource(struct cx8800_fh *fh)
+{
+	switch (fh->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		return RESOURCE_VIDEO;
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		return RESOURCE_VBI;
+	default:
+		BUG();
+		return 0;
+	}
+}
+
+static int video_open(struct inode *inode, struct file *file)
+{
+	int minor = iminor(inode);
+	struct cx8800_dev *h,*dev = NULL;
+	struct cx8800_fh *fh;
+	struct list_head *list;
+	enum v4l2_buf_type type = 0;
+	int radio = 0;
+	
+	list_for_each(list,&cx8800_devlist) {
+		h = list_entry(list, struct cx8800_dev, devlist);
+		if (h->video_dev->minor == minor) {
+			dev  = h;
+			type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		}
+		if (h->vbi_dev->minor == minor) {
+			dev  = h;
+			type = V4L2_BUF_TYPE_VBI_CAPTURE;
+		}
+		if (h->radio_dev &&
+		    h->radio_dev->minor == minor) {
+			radio = 1;
+			dev   = h;
+		}
+	}
+	if (NULL == dev)
+		return -ENODEV;
+
+	dprintk(1,"open minor=%d radio=%d type=%s\n",
+		minor,radio,v4l2_type_names[type]);
+
+	/* allocate + initialize per filehandle data */
+	fh = kmalloc(sizeof(*fh),GFP_KERNEL);
+	if (NULL == fh)
+		return -ENOMEM;
+	memset(fh,0,sizeof(*fh));
+	file->private_data = fh;
+	fh->dev      = dev;
+	fh->radio    = radio;
+	fh->type     = type;
+	fh->width    = 320;
+	fh->height   = 240;
+	fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
+
+	videobuf_queue_init(&fh->vidq, &cx8800_video_qops,
+			    dev->pci, &dev->slock,
+			    V4L2_BUF_TYPE_VIDEO_CAPTURE,
+			    V4L2_FIELD_INTERLACED,
+			    sizeof(struct cx88_buffer));
+	videobuf_queue_init(&fh->vbiq, &cx8800_vbi_qops,
+			    dev->pci, &dev->slock,
+			    V4L2_BUF_TYPE_VBI_CAPTURE,
+			    V4L2_FIELD_SEQ_TB,
+			    sizeof(struct cx88_buffer));
+	init_MUTEX(&fh->vidq.lock);
+	init_MUTEX(&fh->vbiq.lock);
+
+	if (fh->radio) {
+		dprintk(1,"video_open: setting radio device\n");
+		cx_write(MO_GP0_IO, cx88_boards[dev->board].radio.gpio0);
+		dev->tvaudio = WW_FM;
+		cx88_set_tvaudio(dev);
+		cx88_set_stereo(dev,V4L2_TUNER_MODE_STEREO);
+		cx8800_call_i2c_clients(dev,AUDC_SET_RADIO,NULL);
+	}
+
+        return 0;
+}
+
+static ssize_t
+video_read(struct file *file, char *data, size_t count, loff_t *ppos)
+{
+	struct cx8800_fh *fh = file->private_data;
+
+	switch (fh->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		if (res_locked(fh->dev,RESOURCE_VIDEO))
+			return -EBUSY;
+		return videobuf_read_one(file, &fh->vidq, data, count, ppos);
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		if (!res_get(fh->dev,fh,RESOURCE_VBI))
+			return -EBUSY;
+		return videobuf_read_stream(file, &fh->vbiq, data, count, ppos, 1);
+	default:
+		BUG();
+		return 0;
+	}
+}
+
+static unsigned int
+video_poll(struct file *file, struct poll_table_struct *wait)
+{
+	struct cx8800_fh *fh = file->private_data;
+
+	if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
+		return videobuf_poll_stream(file, &fh->vbiq, wait);
+
+	/* FIXME */
+	return POLLERR;
+}
+
+static int video_release(struct inode *inode, struct file *file)
+{
+	struct cx8800_fh  *fh  = file->private_data;
+	struct cx8800_dev *dev = fh->dev;
+
+	/* turn off overlay */
+	if (res_check(fh, RESOURCE_OVERLAY)) {
+		/* FIXME */
+		res_free(dev,fh,RESOURCE_OVERLAY);
+	}
+
+	/* stop video capture */
+	if (res_check(fh, RESOURCE_VIDEO)) {
+		videobuf_queue_cancel(file,&fh->vidq);
+		res_free(dev,fh,RESOURCE_VIDEO);
+	}
+	if (fh->vidq.read_buf) {
+		buffer_release(file,fh->vidq.read_buf);
+		kfree(fh->vidq.read_buf);
+	}
+
+	/* stop vbi capture */
+	if (res_check(fh, RESOURCE_VBI)) {
+		if (fh->vbiq.streaming)
+			videobuf_streamoff(file,&fh->vbiq);
+		if (fh->vbiq.reading)
+			videobuf_read_stop(file,&fh->vbiq);
+		res_free(dev,fh,RESOURCE_VBI);
+	}
+
+	file->private_data = NULL;
+	kfree(fh);
+	return 0;
+}
+
+static int
+video_mmap(struct file *file, struct vm_area_struct * vma)
+{
+	struct cx8800_fh *fh = file->private_data;
+
+	return videobuf_mmap_mapper(vma, get_queue(fh));
+}
+
+/* ------------------------------------------------------------------ */
+
+static int get_control(struct cx8800_dev *dev, struct v4l2_control *ctl)
+{
+	struct cx88_ctrl *c = NULL;
+	u32 value;
+	int i;
+	
+	for (i = 0; i < CX8800_CTLS; i++)
+		if (cx8800_ctls[i].v.id == ctl->id)
+			c = &cx8800_ctls[i];
+	if (NULL == c)
+		return -EINVAL;
+
+	value = c->sreg ? cx_sread(c->sreg) : cx_read(c->reg);
+	switch (ctl->id) {
+	case V4L2_CID_AUDIO_BALANCE:
+		ctl->value = (value & 0x40) ? (value & 0x3f) : (0x40 - (value & 0x3f));
+		break;
+	default:
+		ctl->value = ((value + (c->off << c->shift)) & c->mask) >> c->shift;
+		break;
+	}
+	return 0;
+}
+
+static int set_control(struct cx8800_dev *dev, struct v4l2_control *ctl)
+{
+	struct cx88_ctrl *c = NULL;
+        u32 v_sat_value;
+	u32 value;
+	int i;
+
+	for (i = 0; i < CX8800_CTLS; i++)
+		if (cx8800_ctls[i].v.id == ctl->id)
+			c = &cx8800_ctls[i];
+	if (NULL == c)
+		return -EINVAL;
+
+	if (ctl->value < c->v.minimum)
+		return -ERANGE;
+	if (ctl->value > c->v.maximum)
+		return -ERANGE;
+	switch (ctl->id) {
+	case V4L2_CID_AUDIO_BALANCE:
+		value = (ctl->value < 0x40) ? (0x40 - ctl->value) : ctl->value;
+		break;
+	case V4L2_CID_SATURATION:
+		/* special v_sat handling */
+		v_sat_value = ctl->value - (0x7f - 0x5a);
+		if (v_sat_value > 0xff)
+			v_sat_value = 0xff;
+		if (v_sat_value < 0x00)
+			v_sat_value = 0x00;
+		cx_andor(MO_UV_SATURATION, 0xff00, v_sat_value << 8);
+		/* fall through to default route for u_sat */
+	default:
+		value = ((ctl->value - c->off) << c->shift) & c->mask;
+		break;
+	}
+	dprintk(1,"set_control id=0x%X reg=0x%x val=0x%x%s\n",
+		ctl->id, c->reg, value, c->sreg ? " [shadowed]" : "");
+	if (c->sreg) {
+		cx_sandor(c->sreg, c->reg, c->mask, value);
+	} else {
+		cx_andor(c->reg, c->mask, value);
+	}
+	return 0;
+}
+
+/* ------------------------------------------------------------------ */
+
+static int cx8800_g_fmt(struct cx8800_dev *dev, struct cx8800_fh *fh,
+			struct v4l2_format *f)
+{
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
+		f->fmt.pix.width        = fh->width;
+		f->fmt.pix.height       = fh->height;
+		f->fmt.pix.field        = fh->vidq.field;
+		f->fmt.pix.pixelformat  = fh->fmt->fourcc;
+		f->fmt.pix.bytesperline =
+			(f->fmt.pix.width * fh->fmt->depth) >> 3;
+		f->fmt.pix.sizeimage =
+			f->fmt.pix.height * f->fmt.pix.bytesperline;
+		return 0;
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		cx8800_vbi_fmt(dev, f);
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int cx8800_try_fmt(struct cx8800_dev *dev, struct cx8800_fh *fh,
+			  struct v4l2_format *f)
+{
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	{
+		struct cx8800_fmt *fmt;
+		enum v4l2_field field;
+		unsigned int maxw, maxh;
+
+		fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+		if (NULL == fmt)
+			return -EINVAL;
+
+		field = f->fmt.pix.field;
+		maxw  = norm_maxw(dev->tvnorm);
+		maxh  = norm_maxh(dev->tvnorm);
+
+#if 0
+		if (V4L2_FIELD_ANY == field) {
+			field = (f->fmt.pix.height > maxh/2)
+				? V4L2_FIELD_INTERLACED
+				: V4L2_FIELD_BOTTOM;
+		}
+#else
+		field = V4L2_FIELD_INTERLACED;
+#endif
+		switch (field) {
+		case V4L2_FIELD_TOP:
+		case V4L2_FIELD_BOTTOM:
+			maxh = maxh / 2;
+			break;
+		case V4L2_FIELD_INTERLACED:
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		f->fmt.pix.field = field;
+		if (f->fmt.pix.width < 48)
+			f->fmt.pix.width = 48;
+		if (f->fmt.pix.height < 32)
+			f->fmt.pix.height = 32;
+		if (f->fmt.pix.width > maxw)
+			f->fmt.pix.width = maxw;
+		if (f->fmt.pix.height > maxh)
+			f->fmt.pix.height = maxh;
+		f->fmt.pix.bytesperline =
+			(f->fmt.pix.width * fmt->depth) >> 3;
+		f->fmt.pix.sizeimage =
+			f->fmt.pix.height * f->fmt.pix.bytesperline;
+
+		return 0;
+	}
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		cx8800_vbi_fmt(dev, f);
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int cx8800_s_fmt(struct cx8800_dev *dev, struct cx8800_fh *fh,
+			struct v4l2_format *f)
+{
+	int err;
+	
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		err = cx8800_try_fmt(dev,fh,f);
+		if (0 != err)
+			return err;
+
+		fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
+		fh->width      = f->fmt.pix.width;
+		fh->height     = f->fmt.pix.height;
+		fh->vidq.field = f->fmt.pix.field;
+		return 0;
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		cx8800_vbi_fmt(dev, f);
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+/*
+ * This function is _not_ called directly, but from
+ * video_generic_ioctl (and maybe others).  userspace
+ * copying is done already, arg is a kernel pointer.
+ */
+static int video_do_ioctl(struct inode *inode, struct file *file,
+			  unsigned int cmd, void *arg)
+{
+	struct cx8800_fh  *fh  = file->private_data;
+	struct cx8800_dev *dev = fh->dev;
+#if 0
+	unsigned long flags;
+#endif
+	int err;
+
+	if (video_debug > 1)
+		cx88_print_ioctl(dev->name,cmd);
+	switch (cmd) {
+	case VIDIOC_QUERYCAP:
+	{
+		struct v4l2_capability *cap = arg;
+		
+		memset(cap,0,sizeof(*cap));
+                strcpy(cap->driver, "cx8800");
+		strlcpy(cap->card, cx88_boards[dev->board].name,
+			sizeof(cap->card));
+		sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
+		cap->version = CX88_VERSION_CODE;
+		cap->capabilities =
+			V4L2_CAP_VIDEO_CAPTURE |
+			V4L2_CAP_READWRITE     |
+			V4L2_CAP_STREAMING     |
+#if 0
+			V4L2_CAP_VIDEO_OVERLAY |
+			V4L2_CAP_VBI_CAPTURE   |
+#endif
+			0;
+		if (UNSET != dev->tuner_type)
+			cap->capabilities |= V4L2_CAP_TUNER;
+
+		return 0;
+	}
+
+	/* ---------- tv norms ---------- */
+	case VIDIOC_ENUMSTD:
+	{
+		struct v4l2_standard *e = arg;
+		unsigned int i;
+
+		i = e->index;
+		if (i >= ARRAY_SIZE(tvnorms))
+			return -EINVAL;
+		err = v4l2_video_std_construct(e, tvnorms[e->index].id,
+					       tvnorms[e->index].name);
+		e->index = i;
+		if (err < 0)
+			return err;
+		return 0;
+	}
+	case VIDIOC_G_STD:
+	{
+		v4l2_std_id *id = arg;
+
+		*id = dev->tvnorm->id;
+		return 0;
+	}
+	case VIDIOC_S_STD:
+	{
+		v4l2_std_id *id = arg;
+		unsigned int i;
+
+		for(i = 0; i < ARRAY_SIZE(tvnorms); i++)
+			if (*id & tvnorms[i].id)
+				break;
+		if (i == ARRAY_SIZE(tvnorms))
+			return -EINVAL;
+
+		down(&dev->lock);
+		set_tvnorm(dev,&tvnorms[i]);
+		up(&dev->lock);
+		return 0;
+	}
+
+	/* ------ input switching ---------- */
+	case VIDIOC_ENUMINPUT:
+	{
+		static const char *iname[] = {
+			[ CX88_VMUX_COMPOSITE1 ] = "Composite1",
+			[ CX88_VMUX_COMPOSITE2 ] = "Composite2",
+			[ CX88_VMUX_COMPOSITE3 ] = "Composite3",
+			[ CX88_VMUX_COMPOSITE4 ] = "Composite4",
+			[ CX88_VMUX_TELEVISION ] = "Television",
+			[ CX88_VMUX_SVIDEO     ] = "S-Video",
+			[ CX88_VMUX_DEBUG      ] = "for debug only",
+		};
+		struct v4l2_input *i = arg;
+		unsigned int n;
+
+		n = i->index;
+		if (n >= 4)
+			return -EINVAL;
+		if (0 == INPUT(n)->type)
+			return -EINVAL;
+		memset(i,0,sizeof(*i));
+		i->index = n;
+		i->type  = V4L2_INPUT_TYPE_CAMERA;
+		strcpy(i->name,iname[INPUT(n)->type]);
+		if (CX88_VMUX_TELEVISION == INPUT(n)->type)
+			i->type = V4L2_INPUT_TYPE_TUNER;
+		for (n = 0; n < ARRAY_SIZE(tvnorms); n++)
+			i->std |= tvnorms[n].id;
+		return 0;
+	}
+	case VIDIOC_G_INPUT:
+	{
+		unsigned int *i = arg;
+
+		*i = dev->input;
+		return 0;
+	}
+	case VIDIOC_S_INPUT:
+	{
+		unsigned int *i = arg;
+		
+		if (*i >= 4)
+			return -EINVAL;
+		down(&dev->lock);
+		video_mux(dev,*i);
+		up(&dev->lock);
+		return 0;
+	}
+
+	/* --- capture ioctls ---------------------------------------- */
+	case VIDIOC_ENUM_FMT:
+	{
+		struct v4l2_fmtdesc *f = arg;
+		enum v4l2_buf_type type;
+		unsigned int index;
+
+		index = f->index;
+		type  = f->type;
+		switch (type) {
+		case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+			if (index >= ARRAY_SIZE(formats))
+				return -EINVAL;
+			memset(f,0,sizeof(*f));
+			f->index = index;
+			f->type  = type;
+			strlcpy(f->description,formats[index].name,sizeof(f->description));
+			f->pixelformat = formats[index].fourcc;
+			break;
+		default:
+			return -EINVAL;
+		}
+		return 0;
+	}
+	case VIDIOC_G_FMT:
+	{
+		struct v4l2_format *f = arg;
+		return cx8800_g_fmt(dev,fh,f);
+	}
+	case VIDIOC_S_FMT:
+	{
+		struct v4l2_format *f = arg;
+		return cx8800_s_fmt(dev,fh,f);
+	}
+	case VIDIOC_TRY_FMT:
+	{
+		struct v4l2_format *f = arg;
+		return cx8800_try_fmt(dev,fh,f);
+	}
+
+	/* --- controls ---------------------------------------------- */
+	case VIDIOC_QUERYCTRL:
+	{
+		struct v4l2_queryctrl *c = arg;
+		int i;
+
+		if (c->id <  V4L2_CID_BASE ||
+		    c->id >= V4L2_CID_LASTP1)
+			return -EINVAL;
+		for (i = 0; i < CX8800_CTLS; i++)
+			if (cx8800_ctls[i].v.id == c->id)
+				break;
+		if (i == CX8800_CTLS) {
+			*c = no_ctl;
+			return 0;
+		}
+		*c = cx8800_ctls[i].v;
+		return 0;
+	}
+	case VIDIOC_G_CTRL:
+		return get_control(dev,arg);
+	case VIDIOC_S_CTRL:
+		return set_control(dev,arg);
+		
+	/* --- tuner ioctls ------------------------------------------ */
+	case VIDIOC_G_TUNER:
+	{
+		struct v4l2_tuner *t = arg;
+		u32 reg;
+		
+		if (UNSET == dev->tuner_type)
+			return -EINVAL;
+		if (0 != t->index)
+			return -EINVAL;
+
+		memset(t,0,sizeof(*t));
+		strcpy(t->name, "Television");
+		t->type       = V4L2_TUNER_ANALOG_TV;
+		t->capability = V4L2_TUNER_CAP_NORM;
+		t->rangehigh  = 0xffffffffUL;
+
+		cx88_get_stereo(dev ,t);
+		reg = cx_read(MO_DEVICE_STATUS);
+                t->signal = (reg & (1<<5)) ? 0xffff : 0x0000;
+		return 0;
+	}
+	case VIDIOC_S_TUNER:
+	{
+		struct v4l2_tuner *t = arg;
+
+		if (UNSET == dev->tuner_type)
+			return -EINVAL;
+		if (0 != t->index)
+			return -EINVAL;
+		cx88_set_stereo(dev,t->audmode);
+		return 0;
+	}
+	case VIDIOC_G_FREQUENCY:
+	{
+		struct v4l2_frequency *f = arg;
+
+		if (UNSET == dev->tuner_type)
+			return -EINVAL;
+		if (f->tuner != 0)
+			return -EINVAL;
+		memset(f,0,sizeof(*f));
+		f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+		f->frequency = dev->freq;
+		return 0;
+	}
+	case VIDIOC_S_FREQUENCY:
+	{
+		struct v4l2_frequency *f = arg;
+
+		if (UNSET == dev->tuner_type)
+			return -EINVAL;
+		if (f->tuner != 0)
+			return -EINVAL;
+		if (0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)
+			return -EINVAL;
+		if (1 == fh->radio && f->type != V4L2_TUNER_RADIO)
+			return -EINVAL;
+		down(&dev->lock);
+		dev->freq = f->frequency;
+		cx8800_call_i2c_clients(dev,VIDIOCSFREQ,&dev->freq);
+		up(&dev->lock);
+		return 0;
+	}
+
+	/* --- streaming capture ------------------------------------- */
+	case VIDIOC_REQBUFS:
+		return videobuf_reqbufs(file, get_queue(fh), arg);
+
+	case VIDIOC_QUERYBUF:
+		return videobuf_querybuf(get_queue(fh), arg);
+
+	case VIDIOC_QBUF:
+		return videobuf_qbuf(file, get_queue(fh), arg);
+
+	case VIDIOC_DQBUF:
+		return videobuf_dqbuf(file, get_queue(fh), arg);
+
+	case VIDIOC_STREAMON:
+	{
+		int res = get_ressource(fh);
+
+                if (!res_get(dev,fh,res))
+			return -EBUSY;
+		return videobuf_streamon(file, get_queue(fh));
+	}
+	case VIDIOC_STREAMOFF:
+	{
+		int res = get_ressource(fh);
+		
+		err = videobuf_streamoff(file, get_queue(fh));
+		if (err < 0)
+			return err;
+		res_free(dev,fh,res);
+		return 0;
+	}
+
+	default:
+		return v4l_compat_translate_ioctl(inode,file,cmd,arg,
+						  video_do_ioctl);
+	}
+	return 0;
+}
+
+static int video_ioctl(struct inode *inode, struct file *file,
+		       unsigned int cmd, unsigned long arg)
+{
+	return video_usercopy(inode, file, cmd, arg, video_do_ioctl);
+}
+
+/* ----------------------------------------------------------- */
+
+static int radio_do_ioctl(struct inode *inode, struct file *file,
+			unsigned int cmd, void *arg)
+{
+	struct cx8800_fh *fh = file->private_data;
+	struct cx8800_dev *dev = fh->dev;
+	
+	if (video_debug > 1)
+		cx88_print_ioctl(dev->name,cmd);
+
+	switch (cmd) {
+	case VIDIOC_QUERYCAP:
+	{
+		struct v4l2_capability *cap = arg;
+		
+		memset(cap,0,sizeof(*cap));
+                strcpy(cap->driver, "cx8800");
+		strlcpy(cap->card, cx88_boards[dev->board].name,
+			sizeof(cap->card));
+		sprintf(cap->bus_info,"PCI:%s", pci_name(dev->pci));
+		cap->version = CX88_VERSION_CODE;
+		cap->capabilities = V4L2_CAP_TUNER;
+		return 0;
+	}
+	case VIDIOC_G_TUNER:
+	{
+		struct v4l2_tuner *t = arg;
+		struct video_tuner vt;
+
+		if (t->index > 0)
+			return -EINVAL;
+
+		memset(t,0,sizeof(*t));
+		strcpy(t->name, "Radio");
+                t->rangelow  = (int)(65*16);
+                t->rangehigh = (int)(108*16);
+		
+		memset(&vt,0,sizeof(vt));
+		cx8800_call_i2c_clients(dev,VIDIOCGTUNER,&vt);
+		t->signal = vt.signal;
+		return 0;
+	}
+	case VIDIOC_ENUMINPUT:
+	{
+		struct v4l2_input *i = arg;
+		
+		if (i->index != 0)
+			return -EINVAL;
+		strcpy(i->name,"Radio");
+		i->type = V4L2_INPUT_TYPE_TUNER;
+		return 0;
+	}
+	case VIDIOC_G_INPUT:
+	{
+		int *i = arg;
+		*i = 0;
+		return 0;
+	}
+	case VIDIOC_G_AUDIO:
+	{
+		struct v4l2_audio *a = arg;
+
+		memset(a,0,sizeof(*a));
+		strcpy(a->name,"Radio");
+		return 0;
+	}
+	case VIDIOC_G_STD:
+	{
+		v4l2_std_id *id = arg;
+		*id = 0;
+		return 0;
+	}
+	case VIDIOC_S_AUDIO:
+	case VIDIOC_S_TUNER:
+	case VIDIOC_S_INPUT:
+	case VIDIOC_S_STD:
+		return 0;
+
+	case VIDIOC_QUERYCTRL:
+	{
+		struct v4l2_queryctrl *c = arg;
+		int i;
+
+		if (c->id <  V4L2_CID_BASE ||
+		    c->id >= V4L2_CID_LASTP1)
+			return -EINVAL;
+		if (c->id == V4L2_CID_AUDIO_MUTE) {
+			for (i = 0; i < CX8800_CTLS; i++)
+				if (cx8800_ctls[i].v.id == c->id)
+					break;
+			*c = cx8800_ctls[i].v;
+		} else
+			*c = no_ctl;
+		return 0;
+	}
+
+
+	case VIDIOC_G_CTRL:
+	case VIDIOC_S_CTRL:
+	case VIDIOC_G_FREQUENCY:
+	case VIDIOC_S_FREQUENCY:
+		return video_do_ioctl(inode,file,cmd,arg);
+		
+	default:
+		return v4l_compat_translate_ioctl(inode,file,cmd,arg,
+						  radio_do_ioctl);
+	}
+	return 0;
+};
+
+static int radio_ioctl(struct inode *inode, struct file *file,
+			unsigned int cmd, unsigned long arg)
+{
+	return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
+};
+
+/* ----------------------------------------------------------- */
+
+static void cx8800_vid_timeout(unsigned long data)
+{
+	struct cx8800_dev *dev = (struct cx8800_dev*)data;
+	struct cx88_dmaqueue *q = &dev->vidq;
+	struct cx88_buffer *buf;
+	unsigned long flags;
+
+	cx88_sram_channel_dump(dev, &cx88_sram_channels[SRAM_CH21]);
+	//cx88_risc_disasm(dev,&dev->vidq.stopper);
+	
+	cx_clear(MO_VID_DMACNTRL, 0x11);
+	cx_clear(VID_CAPTURE_CONTROL, 0x06);
+
+	spin_lock_irqsave(&dev->slock,flags);
+	while (!list_empty(&q->active)) {
+		buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
+		list_del(&buf->vb.queue);
+		buf->vb.state = STATE_ERROR;
+		wake_up(&buf->vb.done);
+		printk("%s: [%p/%d] timeout - dma=0x%08lx\n", dev->name,
+		       buf, buf->vb.i, (unsigned long)buf->risc.dma);
+	}
+	restart_video_queue(dev,q);
+	spin_unlock_irqrestore(&dev->slock,flags);
+}
+
+static void cx8800_wakeup(struct cx8800_dev *dev,
+			  struct cx88_dmaqueue *q, u32 count)
+{
+	struct cx88_buffer *buf;
+
+	for (;;) {
+		if (list_empty(&q->active))
+			break;
+		buf = list_entry(q->active.next,
+				 struct cx88_buffer, vb.queue);
+		if (buf->count > count)
+			break;
+		do_gettimeofday(&buf->vb.ts);
+		dprintk(2,"[%p/%d] wakeup reg=%d buf=%d\n",buf,buf->vb.i,
+			count, buf->count);
+		buf->vb.state = STATE_DONE;
+		list_del(&buf->vb.queue);
+		wake_up(&buf->vb.done);
+	}
+	if (list_empty(&q->active)) {
+		del_timer(&q->timeout);
+	} else {
+		mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+	}
+}
+
+static void cx8800_vid_irq(struct cx8800_dev *dev)
+{
+	u32 status, mask, count;
+
+	status = cx_read(MO_VID_INTSTAT);
+	mask   = cx_read(MO_VID_INTMSK);
+	if (0 == (status & mask))
+		return;
+	cx_write(MO_VID_INTSTAT, status);
+	if (irq_debug  ||  (status & mask & ~0xff))
+		cx88_print_irqbits(dev->name, "irq vid",
+				   cx88_vid_irqs, status, mask);
+
+	/* risc op code error */
+	if (status & (1 << 16)) {
+		printk(KERN_WARNING "%s: video risc op code error\n",dev->name);
+		cx_clear(MO_VID_DMACNTRL, 0x11);
+		cx_clear(VID_CAPTURE_CONTROL, 0x06);
+		cx88_sram_channel_dump(dev, &cx88_sram_channels[SRAM_CH21]);
+	}
+	
+	/* risc1 y */
+	if (status & 0x01) {
+		spin_lock(&dev->slock);
+		count = cx_read(MO_VIDY_GPCNT);
+		cx8800_wakeup(dev, &dev->vidq, count);
+		spin_unlock(&dev->slock);
+	}
+
+	/* risc1 vbi */
+	if (status & 0x04) {
+		spin_lock(&dev->slock);
+		count = cx_read(MO_VBI_GPCNT);
+		cx8800_wakeup(dev, &dev->vbiq, count);
+		spin_unlock(&dev->slock);
+	}
+
+	/* risc2 y */
+	if (status & 0x10) {
+		dprintk(2,"stopper video\n");
+		spin_lock(&dev->slock);
+		restart_video_queue(dev,&dev->vidq);
+		spin_unlock(&dev->slock);
+	}
+
+	/* risc2 vbi */
+	if (status & 0x40) {
+		dprintk(2,"stopper vbi\n");
+		spin_lock(&dev->slock);
+		cx8800_restart_vbi_queue(dev,&dev->vbiq);
+		spin_unlock(&dev->slock);
+	}
+}
+
+static irqreturn_t cx8800_irq(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct cx8800_dev *dev = dev_id;
+	u32 status, mask;
+	int loop, handled = 0;
+
+	for (loop = 0; loop < 10; loop++) {
+		status = cx_read(MO_PCI_INTSTAT);
+		mask   = cx_read(MO_PCI_INTMSK);
+		if (0 == (status & mask))
+			goto out;
+		handled = 1;
+		cx_write(MO_PCI_INTSTAT, status);
+		if (irq_debug  ||  (status & mask & ~0x1f))
+			cx88_print_irqbits(dev->name, "irq pci",
+					   cx88_pci_irqs, status, mask);
+
+		if (status & 1)
+			cx8800_vid_irq(dev);
+	};
+	if (10 == loop) {
+		printk(KERN_WARNING "%s: irq loop -- clearing mask\n",
+		       dev->name);
+		cx_write(MO_PCI_INTMSK,0);
+	}
+	
+ out:
+	return IRQ_RETVAL(handled);
+}
+
+/* ----------------------------------------------------------- */
+/* exported stuff                                              */
+
+static struct file_operations video_fops =
+{
+	.owner	       = THIS_MODULE,
+	.open	       = video_open,
+	.release       = video_release,
+	.read	       = video_read,
+	.poll          = video_poll,
+	.mmap	       = video_mmap,
+	.ioctl	       = video_ioctl,
+	.llseek        = no_llseek,
+};
+
+struct video_device cx8800_video_template =
+{
+	.name          = "cx8800-video",
+	.type          = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES,
+	.hardware      = 0,
+	.fops          = &video_fops,
+	.minor         = -1,
+};
+
+struct video_device cx8800_vbi_template =
+{
+	.name          = "cx8800-vbi",
+	.type          = VID_TYPE_TELETEXT|VID_TYPE_TUNER,
+	.hardware      = 0,
+	.fops          = &video_fops,
+	.minor         = -1,
+};
+
+static struct file_operations radio_fops =
+{
+	.owner         = THIS_MODULE,
+	.open          = video_open,
+	.release       = video_release,
+	.ioctl         = radio_ioctl,
+	.llseek        = no_llseek,
+};
+
+struct video_device cx8800_radio_template =
+{
+	.name          = "cx8800-radio",
+	.type          = VID_TYPE_TUNER,
+	.hardware      = 0,
+	.fops          = &radio_fops,
+	.minor         = -1,
+};
+
+/* ----------------------------------------------------------- */
+
+static void cx8800_shutdown(struct cx8800_dev *dev)
+{
+	/* disable RISC controller + IRQs */
+	cx_write(MO_DEV_CNTRL2, 0);
+
+	/* stop dma transfers */
+	cx_write(MO_VID_DMACNTRL, 0x0);
+	cx_write(MO_AUD_DMACNTRL, 0x0);
+	cx_write(MO_TS_DMACNTRL, 0x0);
+	cx_write(MO_VIP_DMACNTRL, 0x0);
+	cx_write(MO_GPHST_DMACNTRL, 0x0);
+
+	/* stop interupts */
+	cx_write(MO_PCI_INTMSK, 0x0);
+	cx_write(MO_VID_INTMSK, 0x0);
+	cx_write(MO_AUD_INTMSK, 0x0);
+	cx_write(MO_TS_INTMSK, 0x0);
+	cx_write(MO_VIP_INTMSK, 0x0);
+	cx_write(MO_GPHST_INTMSK, 0x0);
+
+	/* stop capturing */
+	cx_write(VID_CAPTURE_CONTROL, 0);
+}
+
+static int cx8800_reset(struct cx8800_dev *dev)
+{
+	dprintk(1,"cx8800_reset\n");
+
+	cx8800_shutdown(dev);
+	
+	/* clear irq status */
+	cx_write(MO_VID_INTSTAT, 0xFFFFFFFF); // Clear PIV int
+	cx_write(MO_PCI_INTSTAT, 0xFFFFFFFF); // Clear PCI int
+	cx_write(MO_INT1_STAT,   0xFFFFFFFF); // Clear RISC int
+
+	/* wait a bit */
+	set_current_state(TASK_INTERRUPTIBLE);
+	schedule_timeout(HZ/10);
+	
+	/* init sram */
+	cx88_sram_channel_setup(dev, &cx88_sram_channels[SRAM_CH21], 720*4, 0);
+	cx88_sram_channel_setup(dev, &cx88_sram_channels[SRAM_CH22], 128, 0);
+	cx88_sram_channel_setup(dev, &cx88_sram_channels[SRAM_CH23], 128, 0);
+	cx88_sram_channel_setup(dev, &cx88_sram_channels[SRAM_CH24], 128, 0);
+	cx88_sram_channel_setup(dev, &cx88_sram_channels[SRAM_CH25], 128, 0);
+	cx88_sram_channel_setup(dev, &cx88_sram_channels[SRAM_CH26], 128, 0);
+	
+	/* misc init ... */
+	cx_write(MO_INPUT_FORMAT, ((1 << 13) |   // agc enable
+				   (1 << 12) |   // agc gain
+				   (1 << 11) |   // adaptibe agc
+				   (0 << 10) |   // chroma agc
+				   (0 <<  9) |   // ckillen
+				   (7)));
+
+	/* setup image format */
+	cx_andor(MO_COLOR_CTRL, 0x4000, 0x4000);
+
+	/* setup FIFO Threshholds */
+	cx_write(MO_PDMA_STHRSH,   0x0807);
+	cx_write(MO_PDMA_DTHRSH,   0x0807);
+
+	/* fixes flashing of image */
+	cx_write(MO_AGC_SYNC_TIP1, 0x0380000F);
+	cx_write(MO_AGC_BACK_VBI,  0x00E00555);
+	
+	cx_write(MO_VID_INTSTAT,   0xFFFFFFFF); // Clear PIV int
+	cx_write(MO_PCI_INTSTAT,   0xFFFFFFFF); // Clear PCI int
+	cx_write(MO_INT1_STAT,     0xFFFFFFFF); // Clear RISC int
+
+	return 0;
+}
+
+static struct video_device *vdev_init(struct cx8800_dev *dev,
+				      struct video_device *template,
+				      char *type)
+{
+	struct video_device *vfd;
+
+	vfd = video_device_alloc();
+	if (NULL == vfd)
+		return NULL;
+	*vfd = *template;
+	vfd->minor   = -1;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
+	vfd->dev     = &dev->pci->dev;
+	vfd->release = video_device_release;
+#endif
+	snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
+		 dev->name, type, cx88_boards[dev->board].name);
+	return vfd;
+}
+
+static void cx8800_unregister_video(struct cx8800_dev *dev)
+{
+	if (dev->radio_dev) {
+		if (-1 != dev->radio_dev->minor)
+			video_unregister_device(dev->radio_dev);
+		else
+			video_device_release(dev->radio_dev);
+		dev->radio_dev = NULL;
+	}
+	if (dev->vbi_dev) {
+		if (-1 != dev->vbi_dev->minor)
+			video_unregister_device(dev->vbi_dev);
+		else
+			video_device_release(dev->vbi_dev);
+		dev->vbi_dev = NULL;
+	}
+	if (dev->video_dev) {
+		if (-1 != dev->video_dev->minor)
+			video_unregister_device(dev->video_dev);
+		else
+			video_device_release(dev->video_dev);
+		dev->video_dev = NULL;
+	}
+}
+
+/* debug that damn oops ... */
+static unsigned int oops = 0;
+MODULE_PARM(oops,"i");
+#define OOPS(msg) if (oops) printk("%s: %s\n",__FUNCTION__,msg);
+
+static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
+				    const struct pci_device_id *pci_id)
+{
+	struct cx8800_dev *dev;
+	unsigned int i;
+	int err;
+
+	dev = kmalloc(sizeof(*dev),GFP_KERNEL);
+	if (NULL == dev)
+		return -ENOMEM;
+	memset(dev,0,sizeof(*dev));
+
+	/* pci init */
+	OOPS("pci init");
+	dev->pci = pci_dev;
+	if (pci_enable_device(pci_dev)) {
+		err = -EIO;
+		goto fail1;
+	}
+	sprintf(dev->name,"cx%x[%d]",pci_dev->device,cx8800_devcount);
+
+	/* pci quirks */
+	OOPS("pci quirks");
+	cx88_pci_quirks(dev->name, dev->pci, &latency);
+	if (UNSET != latency) {
+		printk(KERN_INFO "%s: setting pci latency timer to %d\n",
+		       dev->name,latency);
+		pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
+	}
+
+	/* print pci info */
+	OOPS("pci info");
+	pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
+        pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
+        printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
+	       "latency: %d, mmio: 0x%lx\n", dev->name,
+	       pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
+	       dev->pci_lat,pci_resource_start(pci_dev,0));
+
+	pci_set_master(pci_dev);
+	if (!pci_dma_supported(pci_dev,0xffffffff)) {
+		printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
+		err = -EIO;
+		goto fail1;
+	}
+
+	/* board config */
+	OOPS("board config");
+	dev->board = card[cx8800_devcount];
+	for (i = 0; UNSET == dev->board  &&  i < cx88_idcount; i++) 
+		if (pci_dev->subsystem_vendor == cx88_subids[i].subvendor &&
+		    pci_dev->subsystem_device == cx88_subids[i].subdevice)
+			dev->board = cx88_subids[i].card;
+	if (UNSET == dev->board)
+		dev->board = CX88_BOARD_UNKNOWN;
+        printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
+	       dev->name,pci_dev->subsystem_vendor,
+	       pci_dev->subsystem_device,cx88_boards[dev->board].name,
+	       dev->board, card[cx8800_devcount] == dev->board ?
+	       "insmod option" : "autodetected");
+
+	dev->tuner_type = tuner[cx8800_devcount];
+	if (UNSET == dev->tuner_type)
+		dev->tuner_type = cx88_boards[dev->board].tuner_type;
+
+	/* get mmio */
+	OOPS("get mmio");
+	if (!request_mem_region(pci_resource_start(pci_dev,0),
+				pci_resource_len(pci_dev,0),
+				dev->name)) {
+		err = -EBUSY;
+		printk(KERN_ERR "%s: can't get MMIO memory @ 0x%lx\n",
+		       dev->name,pci_resource_start(pci_dev,0));
+		goto fail1;
+	}
+	dev->lmmio = ioremap(pci_resource_start(pci_dev,0),
+			     pci_resource_len(pci_dev,0));
+
+	/* initialize driver struct */
+	OOPS("init structs");
+        init_MUTEX(&dev->lock);
+	dev->slock = SPIN_LOCK_UNLOCKED;
+	dev->tvnorm = tvnorms;
+
+	/* init video dma queues */
+	INIT_LIST_HEAD(&dev->vidq.active);
+	INIT_LIST_HEAD(&dev->vidq.queued);
+	dev->vidq.timeout.function = cx8800_vid_timeout;
+	dev->vidq.timeout.data     = (unsigned long)dev;
+	init_timer(&dev->vidq.timeout);
+	cx88_risc_stopper(dev->pci,&dev->vidq.stopper,
+			  MO_VID_DMACNTRL,0x11,0x00);
+
+	/* init vbi dma queues */
+	INIT_LIST_HEAD(&dev->vbiq.active);
+	INIT_LIST_HEAD(&dev->vbiq.queued);
+	dev->vbiq.timeout.function = cx8800_vbi_timeout;
+	dev->vbiq.timeout.data     = (unsigned long)dev;
+	init_timer(&dev->vbiq.timeout);
+	cx88_risc_stopper(dev->pci,&dev->vbiq.stopper,
+			  MO_VID_DMACNTRL,0x88,0x00);
+
+	/* initialize hardware */
+	OOPS("reset hardware");
+	cx8800_reset(dev);
+
+	/* get irq */
+	OOPS("install irq handler");
+	err = request_irq(pci_dev->irq, cx8800_irq,
+			  SA_SHIRQ | SA_INTERRUPT, dev->name, dev);
+	if (err < 0) {
+		printk(KERN_ERR "%s: can't get IRQ %d\n",
+		       dev->name,pci_dev->irq);
+		goto fail2;
+	}
+
+	/* register i2c bus + load i2c helpers */
+	OOPS("i2c setup");
+	cx8800_i2c_init(dev);
+	OOPS("card setup");
+	cx88_card_setup(dev);
+
+	/* load and configure helper modules */
+	OOPS("configure i2c clients");
+	if (TUNER_ABSENT != dev->tuner_type)
+		request_module("tuner");
+	if (dev->tuner_type != UNSET)
+		cx8800_call_i2c_clients(dev,TUNER_SET_TYPE,&dev->tuner_type);
+
+	/* register v4l devices */
+	OOPS("register video");
+	dev->video_dev = vdev_init(dev,&cx8800_video_template,"video");
+	err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
+				    video_nr[cx8800_devcount]);
+	if (err < 0) {
+		printk(KERN_INFO "%s: can't register video device\n",
+		       dev->name);
+		goto fail3;
+	}
+	printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
+	       dev->name,dev->video_dev->minor & 0x1f);
+
+	OOPS("register vbi");
+	dev->vbi_dev = vdev_init(dev,&cx8800_vbi_template,"vbi");
+	err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
+				    vbi_nr[cx8800_devcount]);
+	if (err < 0) {
+		printk(KERN_INFO "%s: can't register vbi device\n",
+		       dev->name);
+		goto fail3;
+	}
+	printk(KERN_INFO "%s: registered device vbi%d\n",
+	       dev->name,dev->vbi_dev->minor & 0x1f);
+
+	if (dev->has_radio) {
+		OOPS("register radio");
+		dev->radio_dev = vdev_init(dev,&cx8800_radio_template,"radio");
+		err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
+					    radio_nr[cx8800_devcount]);
+		if (err < 0) {
+			printk(KERN_INFO "%s: can't register radio device\n",
+			       dev->name);
+			goto fail3;
+		}
+		printk(KERN_INFO "%s: registered device radio%d\n",
+		       dev->name,dev->radio_dev->minor & 0x1f);
+	}
+
+	/* everything worked */
+	OOPS("finalize");
+	list_add_tail(&dev->devlist,&cx8800_devlist);
+	pci_set_drvdata(pci_dev,dev);
+	cx8800_devcount++;
+
+	/* initial device configuration */
+	OOPS("init device");
+	down(&dev->lock);
+	set_tvnorm(dev,tvnorms);
+	video_mux(dev,0);
+	up(&dev->lock);
+	return 0;
+
+ fail3:
+	OOPS("fail3");
+	cx8800_unregister_video(dev);
+	if (0 == dev->i2c_rc)
+		i2c_bit_del_bus(&dev->i2c_adap);
+	free_irq(pci_dev->irq, dev);
+ fail2:
+	OOPS("fail2");
+	release_mem_region(pci_resource_start(pci_dev,0),
+			   pci_resource_len(pci_dev,0));
+ fail1:
+	OOPS("fail1");
+	kfree(dev);
+	return err;
+}
+
+static void __devexit cx8800_finidev(struct pci_dev *pci_dev)
+{
+        struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
+
+	cx8800_shutdown(dev);
+	pci_disable_device(pci_dev);
+
+	/* unregister stuff */	
+	if (0 == dev->i2c_rc)
+		i2c_bit_del_bus(&dev->i2c_adap);
+
+	free_irq(pci_dev->irq, dev);
+	release_mem_region(pci_resource_start(pci_dev,0),
+			   pci_resource_len(pci_dev,0));
+
+	cx8800_unregister_video(dev);
+	pci_set_drvdata(pci_dev, NULL);
+
+	/* free memory */
+	btcx_riscmem_free(dev->pci,&dev->vidq.stopper);
+	list_del(&dev->devlist);
+	cx8800_devcount--;
+	kfree(dev);
+}
+
+static int cx8800_suspend(struct pci_dev *pci_dev, u32 state)
+{
+        struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
+
+	printk("%s: suspend %d\n", dev->name, state);
+
+	cx8800_shutdown(dev);
+	del_timer(&dev->vidq.timeout);
+	
+	pci_save_state(pci_dev, dev->state.pci_cfg);
+	if (0 != pci_set_power_state(pci_dev, state)) {
+		pci_disable_device(pci_dev);
+		dev->state.disabled = 1;
+	}
+	return 0;
+}
+
+static int cx8800_resume(struct pci_dev *pci_dev)
+{
+        struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
+
+	printk("%s: resume\n", dev->name);
+
+	if (dev->state.disabled) {
+		pci_enable_device(pci_dev);
+		dev->state.disabled = 0;
+	}
+	pci_set_power_state(pci_dev, 0);
+	pci_restore_state(pci_dev, dev->state.pci_cfg);
+
+	/* re-initialize hardware */
+	cx8800_reset(dev);
+
+	/* restart video capture */
+	spin_lock(&dev->slock);
+	restart_video_queue(dev,&dev->vidq);
+	spin_unlock(&dev->slock);
+
+	return 0;
+}
+
+/* ----------------------------------------------------------- */
+
+struct pci_device_id cx8800_pci_tbl[] = {
+	{
+		.vendor       = 0x14f1,
+		.device       = 0x8800,
+                .subvendor    = PCI_ANY_ID,
+                .subdevice    = PCI_ANY_ID,
+	},{
+		/* --- end of list --- */
+	}
+};
+MODULE_DEVICE_TABLE(pci, cx8800_pci_tbl);
+
+static struct pci_driver cx8800_pci_driver = {
+        .name     = "cx8800",
+        .id_table = cx8800_pci_tbl,
+        .probe    = cx8800_initdev,
+        .remove   = cx8800_finidev,
+
+	.suspend  = cx8800_suspend,
+	.resume   = cx8800_resume,
+};
+
+static int cx8800_init(void)
+{
+	INIT_LIST_HEAD(&cx8800_devlist);
+	printk(KERN_INFO "cx2388x v4l2 driver version %d.%d.%d loaded\n",
+	       (CX88_VERSION_CODE >> 16) & 0xff,
+	       (CX88_VERSION_CODE >>  8) & 0xff,
+	       CX88_VERSION_CODE & 0xff);
+#ifdef SNAPSHOT
+	printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
+	       SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
+#endif
+	return pci_module_init(&cx8800_pci_driver);
+}
+
+static void cx8800_fini(void)
+{
+	pci_unregister_driver(&cx8800_pci_driver);
+}
+
+module_init(cx8800_init);
+module_exit(cx8800_fini);
+
+/* ----------------------------------------------------------- */
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */