1 files changed, 592 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
new file mode 100644
index 000000000000..c78ee0d3e59b
--- /dev/null
+++ b/drivers/media/video/gspca/stk014.c
@@ -0,0 +1,592 @@
+/*
+ * Syntek DV4000 (STK014) subdriver
+ *
+ * Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr)
+ *
+ * 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
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#define MODULE_NAME "stk014"
+
+#include "gspca.h"
+#include "jpeg.h"
+
+#define DRIVER_VERSION_NUMBER	KERNEL_VERSION(2, 1, 7)
+static const char version[] = "2.1.7";
+
+MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
+MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+/* specific webcam descriptor */
+struct sd {
+	struct gspca_dev gspca_dev;	/* !! must be the first item */
+
+	unsigned char brightness;
+	unsigned char contrast;
+	unsigned char colors;
+	unsigned char lightfreq;
+};
+
+/* global parameters */
+static int sd_quant = 7;		/* <= 4 KO - 7: good (enough!) */
+
+/* V4L2 controls supported by the driver */
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val);
+
+static struct ctrl sd_ctrls[] = {
+	{
+	    {
+		.id      = V4L2_CID_BRIGHTNESS,
+		.type    = V4L2_CTRL_TYPE_INTEGER,
+		.name    = "Brightness",
+		.minimum = 0,
+		.maximum = 255,
+		.step    = 1,
+#define BRIGHTNESS_DEF 127
+		.default_value = BRIGHTNESS_DEF,
+	    },
+	    .set = sd_setbrightness,
+	    .get = sd_getbrightness,
+	},
+	{
+	    {
+		.id      = V4L2_CID_CONTRAST,
+		.type    = V4L2_CTRL_TYPE_INTEGER,
+		.name    = "Contrast",
+		.minimum = 0,
+		.maximum = 255,
+		.step    = 1,
+#define CONTRAST_DEF 127
+		.default_value = CONTRAST_DEF,
+	    },
+	    .set = sd_setcontrast,
+	    .get = sd_getcontrast,
+	},
+	{
+	    {
+		.id      = V4L2_CID_SATURATION,
+		.type    = V4L2_CTRL_TYPE_INTEGER,
+		.name    = "Color",
+		.minimum = 0,
+		.maximum = 255,
+		.step    = 1,
+#define COLOR_DEF 127
+		.default_value = COLOR_DEF,
+	    },
+	    .set = sd_setcolors,
+	    .get = sd_getcolors,
+	},
+	{
+	    {
+		.id	 = V4L2_CID_POWER_LINE_FREQUENCY,
+		.type    = V4L2_CTRL_TYPE_MENU,
+		.name    = "Light frequency filter",
+		.minimum = 1,
+		.maximum = 2,	/* 0: 0, 1: 50Hz, 2:60Hz */
+		.step    = 1,
+#define FREQ_DEF 1
+		.default_value = FREQ_DEF,
+	    },
+	    .set = sd_setfreq,
+	    .get = sd_getfreq,
+	},
+};
+
+static struct v4l2_pix_format vga_mode[] = {
+	{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+		.bytesperline = 320,
+		.sizeimage = 320 * 240 * 3 / 8 + 590,
+		.colorspace = V4L2_COLORSPACE_JPEG,
+		.priv = 1},
+	{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+		.bytesperline = 640,
+		.sizeimage = 640 * 480 * 3 / 8 + 590,
+		.colorspace = V4L2_COLORSPACE_JPEG,
+		.priv = 0},
+};
+
+/* -- read a register -- */
+static int reg_r(struct gspca_dev *gspca_dev,
+			__u16 index)
+{
+	struct usb_device *dev = gspca_dev->dev;
+	int ret;
+
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+			0x00,
+			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			0x00,
+			index,
+			gspca_dev->usb_buf, 1,
+			500);
+	if (ret < 0) {
+		PDEBUG(D_ERR, "reg_r err %d", ret);
+		return ret;
+	}
+	return gspca_dev->usb_buf[0];
+}
+
+/* -- write a register -- */
+static int reg_w(struct gspca_dev *gspca_dev,
+			__u16 index, __u16 value)
+{
+	struct usb_device *dev = gspca_dev->dev;
+	int ret;
+
+	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+			0x01,
+			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			value,
+			index,
+			NULL,
+			0,
+			500);
+	if (ret < 0)
+		PDEBUG(D_ERR, "reg_w err %d", ret);
+	return ret;
+}
+
+/* -- get a bulk value (4 bytes) -- */
+static int rcv_val(struct gspca_dev *gspca_dev,
+			int ads)
+{
+	struct usb_device *dev = gspca_dev->dev;
+	int alen, ret;
+
+	reg_w(gspca_dev, 0x634, (ads >> 16) & 0xff);
+	reg_w(gspca_dev, 0x635, (ads >> 8) & 0xff);
+	reg_w(gspca_dev, 0x636, ads & 0xff);
+	reg_w(gspca_dev, 0x637, 0);
+	reg_w(gspca_dev, 0x638, 4);	/* len & 0xff */
+	reg_w(gspca_dev, 0x639, 0);	/* len >> 8 */
+	reg_w(gspca_dev, 0x63a, 0);
+	reg_w(gspca_dev, 0x63b, 0);
+	reg_w(gspca_dev, 0x630, 5);
+	ret = usb_bulk_msg(dev,
+			usb_rcvbulkpipe(dev, 5),
+			gspca_dev->usb_buf,
+			4,		/* length */
+			&alen,
+			500);		/* timeout in milliseconds */
+	return ret;
+}
+
+/* -- send a bulk value -- */
+static int snd_val(struct gspca_dev *gspca_dev,
+			int ads,
+			unsigned int val)
+{
+	struct usb_device *dev = gspca_dev->dev;
+	int alen, ret;
+	__u8 seq = 0;
+
+	if (ads == 0x003f08) {
+		ret = reg_r(gspca_dev, 0x0704);
+		if (ret < 0)
+			goto ko;
+		ret = reg_r(gspca_dev, 0x0705);
+		if (ret < 0)
+			goto ko;
+		seq = ret;		/* keep the sequence number */
+		ret = reg_r(gspca_dev, 0x0650);
+		if (ret < 0)
+			goto ko;
+		reg_w(gspca_dev, 0x654, seq);
+	} else {
+		reg_w(gspca_dev, 0x654, (ads >> 16) & 0xff);
+	}
+	reg_w(gspca_dev, 0x655, (ads >> 8) & 0xff);
+	reg_w(gspca_dev, 0x656, ads & 0xff);
+	reg_w(gspca_dev, 0x657, 0);
+	reg_w(gspca_dev, 0x658, 0x04);	/* size */
+	reg_w(gspca_dev, 0x659, 0);
+	reg_w(gspca_dev, 0x65a, 0);
+	reg_w(gspca_dev, 0x65b, 0);
+	reg_w(gspca_dev, 0x650, 5);
+	gspca_dev->usb_buf[0] = val >> 24;
+	gspca_dev->usb_buf[1] = val >> 16;
+	gspca_dev->usb_buf[2] = val >> 8;
+	gspca_dev->usb_buf[3] = val;
+	ret = usb_bulk_msg(dev,
+			usb_sndbulkpipe(dev, 6),
+			gspca_dev->usb_buf,
+			4,
+			&alen,
+			500);	/* timeout in milliseconds */
+	if (ret < 0)
+		goto ko;
+	if (ads == 0x003f08) {
+		seq += 4;
+		seq &= 0x3f;
+		reg_w(gspca_dev, 0x705, seq);
+	}
+	return ret;
+ko:
+	PDEBUG(D_ERR, "snd_val err %d", ret);
+	return ret;
+}
+
+/* set a camera parameter */
+static int set_par(struct gspca_dev *gspca_dev,
+		   int parval)
+{
+	return snd_val(gspca_dev, 0x003f08, parval);
+}
+
+static void setbrightness(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int parval;
+
+	parval = 0x06000000		/* whiteness */
+		+ (sd->brightness << 16);
+	set_par(gspca_dev, parval);
+}
+
+static void setcontrast(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int parval;
+
+	parval = 0x07000000		/* contrast */
+		+ (sd->contrast << 16);
+	set_par(gspca_dev, parval);
+}
+
+static void setcolors(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int parval;
+
+	parval = 0x08000000		/* saturation */
+		+ (sd->colors << 16);
+	set_par(gspca_dev, parval);
+}
+
+static void setfreq(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	set_par(gspca_dev, sd->lightfreq == 1
+			? 0x33640000		/* 50 Hz */
+			: 0x33780000);		/* 60 Hz */
+}
+
+/* this function is called at probe time */
+static int sd_config(struct gspca_dev *gspca_dev,
+			const struct usb_device_id *id)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct cam *cam = &gspca_dev->cam;
+
+	cam->dev_name = (char *) id->driver_info;
+	cam->epaddr = 0x02;
+	gspca_dev->cam.cam_mode = vga_mode;
+	gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
+	sd->brightness = BRIGHTNESS_DEF;
+	sd->contrast = CONTRAST_DEF;
+	sd->colors = COLOR_DEF;
+	sd->lightfreq = FREQ_DEF;
+	return 0;
+}
+
+/* this function is called at open time */
+static int sd_open(struct gspca_dev *gspca_dev)
+{
+	int ret;
+
+	/* check if the device responds */
+	usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
+	ret = reg_r(gspca_dev, 0x0740);
+	if (ret < 0)
+		return ret;
+	if (ret != 0xff) {
+		PDEBUG(D_ERR|D_STREAM, "init reg: 0x%02x", ret);
+		return -1;
+	}
+	return 0;
+}
+
+/* -- start the camera -- */
+static void sd_start(struct gspca_dev *gspca_dev)
+{
+	int ret, value;
+
+	/* work on alternate 1 */
+	usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
+
+	set_par(gspca_dev, 0x10000000);
+	set_par(gspca_dev, 0x00000000);
+	set_par(gspca_dev, 0x8002e001);
+	set_par(gspca_dev, 0x14000000);
+	if (gspca_dev->width > 320)
+		value = 0x8002e001;		/* 640x480 */
+	else
+		value = 0x4001f000;		/* 320x240 */
+	set_par(gspca_dev, value);
+	ret = usb_set_interface(gspca_dev->dev,
+					gspca_dev->iface,
+					gspca_dev->alt);
+	if (ret < 0) {
+		PDEBUG(D_ERR|D_STREAM, "set intf %d %d failed",
+			gspca_dev->iface, gspca_dev->alt);
+		goto out;
+	}
+	ret = reg_r(gspca_dev, 0x0630);
+	if (ret < 0)
+		goto out;
+	rcv_val(gspca_dev, 0x000020);	/* << (value ff ff ff ff) */
+	ret = reg_r(gspca_dev, 0x0650);
+	if (ret < 0)
+		goto out;
+	snd_val(gspca_dev, 0x000020, 0xffffffff);
+	reg_w(gspca_dev, 0x0620, 0);
+	reg_w(gspca_dev, 0x0630, 0);
+	reg_w(gspca_dev, 0x0640, 0);
+	reg_w(gspca_dev, 0x0650, 0);
+	reg_w(gspca_dev, 0x0660, 0);
+	setbrightness(gspca_dev);		/* whiteness */
+	setcontrast(gspca_dev);			/* contrast */
+	setcolors(gspca_dev);			/* saturation */
+	set_par(gspca_dev, 0x09800000);		/* Red ? */
+	set_par(gspca_dev, 0x0a800000);		/* Green ? */
+	set_par(gspca_dev, 0x0b800000);		/* Blue ? */
+	set_par(gspca_dev, 0x0d030000);		/* Gamma ? */
+	setfreq(gspca_dev);			/* light frequency */
+
+	/* start the video flow */
+	set_par(gspca_dev, 0x01000000);
+	set_par(gspca_dev, 0x01000000);
+	PDEBUG(D_STREAM, "camera started alt: 0x%02x", gspca_dev->alt);
+	return;
+out:
+	PDEBUG(D_ERR|D_STREAM, "camera start err %d", ret);
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+	struct usb_device *dev = gspca_dev->dev;
+
+	set_par(gspca_dev, 0x02000000);
+	set_par(gspca_dev, 0x02000000);
+	usb_set_interface(dev, gspca_dev->iface, 1);
+	reg_r(gspca_dev, 0x0630);
+	rcv_val(gspca_dev, 0x000020);	/* << (value ff ff ff ff) */
+	reg_r(gspca_dev, 0x0650);
+	snd_val(gspca_dev, 0x000020, 0xffffffff);
+	reg_w(gspca_dev, 0x0620, 0);
+	reg_w(gspca_dev, 0x0630, 0);
+	reg_w(gspca_dev, 0x0640, 0);
+	reg_w(gspca_dev, 0x0650, 0);
+	reg_w(gspca_dev, 0x0660, 0);
+	PDEBUG(D_STREAM, "camera stopped");
+}
+
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+}
+
+static void sd_close(struct gspca_dev *gspca_dev)
+{
+}
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+			struct gspca_frame *frame,	/* target */
+			__u8 *data,			/* isoc packet */
+			int len)			/* iso packet length */
+{
+	static unsigned char ffd9[] = {0xff, 0xd9};
+
+	/* a frame starts with:
+	 *	- 0xff 0xfe
+	 *	- 0x08 0x00	- length (little endian ?!)
+	 *	- 4 bytes = size of whole frame (BE - including header)
+	 *	- 0x00 0x0c
+	 *	- 0xff 0xd8
+	 *	- ..	JPEG image with escape sequences (ff 00)
+	 *		(without ending - ff d9)
+	 */
+	if (data[0] == 0xff && data[1] == 0xfe) {
+		frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
+					ffd9, 2);
+
+		/* put the JPEG 411 header */
+		jpeg_put_header(gspca_dev, frame, sd_quant, 0x22);
+
+		/* beginning of the frame */
+#define STKHDRSZ 12
+		gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+				data + STKHDRSZ, len - STKHDRSZ);
+#undef STKHDRSZ
+		return;
+	}
+	gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
+}
+
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	sd->brightness = val;
+	if (gspca_dev->streaming)
+		setbrightness(gspca_dev);
+	return 0;
+}
+
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	*val = sd->brightness;
+	return 0;
+}
+
+static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	sd->contrast = val;
+	if (gspca_dev->streaming)
+		setcontrast(gspca_dev);
+	return 0;
+}
+
+static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	*val = sd->contrast;
+	return 0;
+}
+
+static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	sd->colors = val;
+	if (gspca_dev->streaming)
+		setcolors(gspca_dev);
+	return 0;
+}
+
+static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	*val = sd->colors;
+	return 0;
+}
+
+static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	sd->lightfreq = val;
+	if (gspca_dev->streaming)
+		setfreq(gspca_dev);
+	return 0;
+}
+
+static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	*val = sd->lightfreq;
+	return 0;
+}
+
+static int sd_querymenu(struct gspca_dev *gspca_dev,
+			struct v4l2_querymenu *menu)
+{
+	switch (menu->id) {
+	case V4L2_CID_POWER_LINE_FREQUENCY:
+		switch (menu->index) {
+		case 1:		/* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
+			strcpy((char *) menu->name, "50 Hz");
+			return 0;
+		case 2:		/* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
+			strcpy((char *) menu->name, "60 Hz");
+			return 0;
+		}
+		break;
+	}
+	return -EINVAL;
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+	.name = MODULE_NAME,
+	.ctrls = sd_ctrls,
+	.nctrls = ARRAY_SIZE(sd_ctrls),
+	.config = sd_config,
+	.open = sd_open,
+	.start = sd_start,
+	.stopN = sd_stopN,
+	.stop0 = sd_stop0,
+	.close = sd_close,
+	.pkt_scan = sd_pkt_scan,
+	.querymenu = sd_querymenu,
+};
+
+/* -- module initialisation -- */
+#define DVNM(name) .driver_info = (kernel_ulong_t) name
+static const __devinitdata struct usb_device_id device_table[] = {
+	{USB_DEVICE(0x05e1, 0x0893), DVNM("Syntek DV4000")},
+	{}
+};
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+			const struct usb_device_id *id)
+{
+	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
+				THIS_MODULE);
+}
+
+static struct usb_driver sd_driver = {
+	.name = MODULE_NAME,
+	.id_table = device_table,
+	.probe = sd_probe,
+	.disconnect = gspca_disconnect,
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+	if (usb_register(&sd_driver) < 0)
+		return -1;
+	info("v%s registered", version);
+	return 0;
+}
+static void __exit sd_mod_exit(void)
+{
+	usb_deregister(&sd_driver);
+	info("deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
+
+module_param_named(quant, sd_quant, int, 0644);
+MODULE_PARM_DESC(quant, "Quantization index (0..8)");