[mirror_ubuntu-bionic-kernel.git] / drivers / media / video / gspca / kinect.c

/*
 * kinect sensor device camera, gspca driver
 *
 * Copyright (C) 2011  Antonio Ospite <ospite@studenti.unina.it>
 *
 * Based on the OpenKinect project and libfreenect
 * http://openkinect.org/wiki/Init_Analysis
 *
 * Special thanks to Steven Toth and kernellabs.com for sponsoring a Kinect
 * sensor device which I tested the driver on.
 *
 * 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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#define MODULE_NAME "kinect"

#include "gspca.h"

#define CTRL_TIMEOUT 500

MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
MODULE_DESCRIPTION("GSPCA/Kinect Sensor Device USB Camera Driver");
MODULE_LICENSE("GPL");

struct pkt_hdr {
	uint8_t magic[2];
	uint8_t pad;
	uint8_t flag;
	uint8_t unk1;
	uint8_t seq;
	uint8_t unk2;
	uint8_t unk3;
	uint32_t timestamp;
};

struct cam_hdr {
	uint8_t magic[2];
	uint16_t len;
	uint16_t cmd;
	uint16_t tag;
};

/* specific webcam descriptor */
struct sd {
	struct gspca_dev gspca_dev; /* !! must be the first item */
	uint16_t cam_tag;           /* a sequence number for packets */
	uint8_t stream_flag;        /* to identify different stream types */
	uint8_t obuf[0x400];        /* output buffer for control commands */
	uint8_t ibuf[0x200];        /* input buffer for control commands */
};

/* V4L2 controls supported by the driver */
/* controls prototypes here */

static const struct ctrl sd_ctrls[] = {
};

#define MODE_640x480   0x0001
#define MODE_640x488   0x0002
#define MODE_1280x1024 0x0004

#define FORMAT_BAYER   0x0010
#define FORMAT_UYVY    0x0020
#define FORMAT_Y10B    0x0040

#define FPS_HIGH       0x0100

static const struct v4l2_pix_format video_camera_mode[] = {
	{640, 480, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
	 .bytesperline = 640,
	 .sizeimage = 640 * 480,
	 .colorspace = V4L2_COLORSPACE_SRGB,
	 .priv = MODE_640x480 | FORMAT_BAYER | FPS_HIGH},
	{640, 480, V4L2_PIX_FMT_UYVY, V4L2_FIELD_NONE,
	 .bytesperline = 640 * 2,
	 .sizeimage = 640 * 480 * 2,
	 .colorspace = V4L2_COLORSPACE_SRGB,
	 .priv = MODE_640x480 | FORMAT_UYVY},
	{1280, 1024, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
	 .bytesperline = 1280,
	 .sizeimage = 1280 * 1024,
	 .colorspace = V4L2_COLORSPACE_SRGB,
	 .priv = MODE_1280x1024 | FORMAT_BAYER},
	{640, 488, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
	 .bytesperline = 640 * 10 / 8,
	 .sizeimage =  640 * 488 * 10 / 8,
	 .colorspace = V4L2_COLORSPACE_SRGB,
	 .priv = MODE_640x488 | FORMAT_Y10B | FPS_HIGH},
	{1280, 1024, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
	 .bytesperline = 1280 * 10 / 8,
	 .sizeimage =  1280 * 1024 * 10 / 8,
	 .colorspace = V4L2_COLORSPACE_SRGB,
	 .priv = MODE_1280x1024 | FORMAT_Y10B},
};

static int kinect_write(struct usb_device *udev, uint8_t *data,
			uint16_t wLength)
{
	return usb_control_msg(udev,
			      usb_sndctrlpipe(udev, 0),
			      0x00,
			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			      0, 0, data, wLength, CTRL_TIMEOUT);
}

static int kinect_read(struct usb_device *udev, uint8_t *data, uint16_t wLength)
{
	return usb_control_msg(udev,
			      usb_rcvctrlpipe(udev, 0),
			      0x00,
			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			      0, 0, data, wLength, CTRL_TIMEOUT);
}

static int send_cmd(struct gspca_dev *gspca_dev, uint16_t cmd, void *cmdbuf,
		unsigned int cmd_len, void *replybuf, unsigned int reply_len)
{
	struct sd *sd = (struct sd *) gspca_dev;
	struct usb_device *udev = gspca_dev->dev;
	int res, actual_len;
	uint8_t *obuf = sd->obuf;
	uint8_t *ibuf = sd->ibuf;
	struct cam_hdr *chdr = (void *)obuf;
	struct cam_hdr *rhdr = (void *)ibuf;

	if (cmd_len & 1 || cmd_len > (0x400 - sizeof(*chdr))) {
		pr_err("send_cmd: Invalid command length (0x%x)\n", cmd_len);
		return -1;
	}

	chdr->magic[0] = 0x47;
	chdr->magic[1] = 0x4d;
	chdr->cmd = cpu_to_le16(cmd);
	chdr->tag = cpu_to_le16(sd->cam_tag);
	chdr->len = cpu_to_le16(cmd_len / 2);

	memcpy(obuf+sizeof(*chdr), cmdbuf, cmd_len);

	res = kinect_write(udev, obuf, cmd_len + sizeof(*chdr));
	PDEBUG(D_USBO, "Control cmd=%04x tag=%04x len=%04x: %d", cmd,
		sd->cam_tag, cmd_len, res);
	if (res < 0) {
		pr_err("send_cmd: Output control transfer failed (%d)\n", res);
		return res;
	}

	do {
		actual_len = kinect_read(udev, ibuf, 0x200);
	} while (actual_len == 0);
	PDEBUG(D_USBO, "Control reply: %d", res);
	if (actual_len < sizeof(*rhdr)) {
		pr_err("send_cmd: Input control transfer failed (%d)\n", res);
		return res;
	}
	actual_len -= sizeof(*rhdr);

	if (rhdr->magic[0] != 0x52 || rhdr->magic[1] != 0x42) {
		pr_err("send_cmd: Bad magic %02x %02x\n",
		       rhdr->magic[0], rhdr->magic[1]);
		return -1;
	}
	if (rhdr->cmd != chdr->cmd) {
		pr_err("send_cmd: Bad cmd %02x != %02x\n",
		       rhdr->cmd, chdr->cmd);
		return -1;
	}
	if (rhdr->tag != chdr->tag) {
		pr_err("send_cmd: Bad tag %04x != %04x\n",
		       rhdr->tag, chdr->tag);
		return -1;
	}
	if (cpu_to_le16(rhdr->len) != (actual_len/2)) {
		pr_err("send_cmd: Bad len %04x != %04x\n",
		       cpu_to_le16(rhdr->len), (int)(actual_len/2));
		return -1;
	}

	if (actual_len > reply_len) {
		pr_warn("send_cmd: Data buffer is %d bytes long, but got %d bytes\n",
			reply_len, actual_len);
		memcpy(replybuf, ibuf+sizeof(*rhdr), reply_len);
	} else {
		memcpy(replybuf, ibuf+sizeof(*rhdr), actual_len);
	}

	sd->cam_tag++;

	return actual_len;
}

static int write_register(struct gspca_dev *gspca_dev, uint16_t reg,
			uint16_t data)
{
	uint16_t reply[2];
	uint16_t cmd[2];
	int res;

	cmd[0] = cpu_to_le16(reg);
	cmd[1] = cpu_to_le16(data);

	PDEBUG(D_USBO, "Write Reg 0x%04x <= 0x%02x", reg, data);
	res = send_cmd(gspca_dev, 0x03, cmd, 4, reply, 4);
	if (res < 0)
		return res;
	if (res != 2) {
		pr_warn("send_cmd returned %d [%04x %04x], 0000 expected\n",
			res, reply[0], reply[1]);
	}
	return 0;
}

/* 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;

	sd->cam_tag = 0;

	/* Only video stream is supported for now,
	 * which has stream flag = 0x80 */
	sd->stream_flag = 0x80;

	cam = &gspca_dev->cam;

	cam->cam_mode = video_camera_mode;
	cam->nmodes = ARRAY_SIZE(video_camera_mode);

#if 0
	/* Setting those values is not needed for video stream */
	cam->npkt = 15;
	gspca_dev->pkt_size = 960 * 2;
#endif

	return 0;
}

/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
	PDEBUG(D_PROBE, "Kinect Camera device.");

	return 0;
}

static int sd_start(struct gspca_dev *gspca_dev)
{
	int mode;
	uint8_t fmt_reg, fmt_val;
	uint8_t res_reg, res_val;
	uint8_t fps_reg, fps_val;
	uint8_t mode_val;

	mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;

	if (mode & FORMAT_Y10B) {
		fmt_reg = 0x19;
		res_reg = 0x1a;
		fps_reg = 0x1b;
		mode_val = 0x03;
	} else {
		fmt_reg = 0x0c;
		res_reg = 0x0d;
		fps_reg = 0x0e;
		mode_val = 0x01;
	}

	/* format */
	if (mode & FORMAT_UYVY)
		fmt_val = 0x05;
	else
		fmt_val = 0x00;

	if (mode & MODE_1280x1024)
		res_val = 0x02;
	else
		res_val = 0x01;

	if (mode & FPS_HIGH)
		fps_val = 0x1e;
	else
		fps_val = 0x0f;


	/* turn off IR-reset function */
	write_register(gspca_dev, 0x105, 0x00);

	/* Reset video stream */
	write_register(gspca_dev, 0x05, 0x00);

	/* Due to some ridiculous condition in the firmware, we have to start
	 * and stop the depth stream before the camera will hand us 1280x1024
	 * IR.  This is a stupid workaround, but we've yet to find a better
	 * solution.
	 *
	 * Thanks to Drew Fisher for figuring this out.
	 */
	if (mode & (FORMAT_Y10B | MODE_1280x1024)) {
		write_register(gspca_dev, 0x13, 0x01);
		write_register(gspca_dev, 0x14, 0x1e);
		write_register(gspca_dev, 0x06, 0x02);
		write_register(gspca_dev, 0x06, 0x00);
	}

	write_register(gspca_dev, fmt_reg, fmt_val);
	write_register(gspca_dev, res_reg, res_val);
	write_register(gspca_dev, fps_reg, fps_val);

	/* Start video stream */
	write_register(gspca_dev, 0x05, mode_val);

	/* disable Hflip */
	write_register(gspca_dev, 0x47, 0x00);

	return 0;
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
	/* reset video stream */
	write_register(gspca_dev, 0x05, 0x00);
}

static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *__data, int len)
{
	struct sd *sd = (struct sd *) gspca_dev;

	struct pkt_hdr *hdr = (void *)__data;
	uint8_t *data = __data + sizeof(*hdr);
	int datalen = len - sizeof(*hdr);

	uint8_t sof = sd->stream_flag | 1;
	uint8_t mof = sd->stream_flag | 2;
	uint8_t eof = sd->stream_flag | 5;

	if (len < 12)
		return;

	if (hdr->magic[0] != 'R' || hdr->magic[1] != 'B') {
		pr_warn("[Stream %02x] Invalid magic %02x%02x\n",
			sd->stream_flag, hdr->magic[0], hdr->magic[1]);
		return;
	}

	if (hdr->flag == sof)
		gspca_frame_add(gspca_dev, FIRST_PACKET, data, datalen);

	else if (hdr->flag == mof)
		gspca_frame_add(gspca_dev, INTER_PACKET, data, datalen);

	else if (hdr->flag == eof)
		gspca_frame_add(gspca_dev, LAST_PACKET, data, datalen);

	else
		pr_warn("Packet type not recognized...\n");
}

/* sub-driver description */
static const struct sd_desc sd_desc = {
	.name      = MODULE_NAME,
	.ctrls     = sd_ctrls,
	.nctrls    = ARRAY_SIZE(sd_ctrls),
	.config    = sd_config,
	.init      = sd_init,
	.start     = sd_start,
	.stopN     = sd_stopN,
	.pkt_scan  = sd_pkt_scan,
	/*
	.querymenu = sd_querymenu,
	.get_streamparm = sd_get_streamparm,
	.set_streamparm = sd_set_streamparm,
	*/
};

/* -- module initialisation -- */
static const struct usb_device_id device_table[] = {
	{USB_DEVICE(0x045e, 0x02ae)},
	{}
};

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,
#ifdef CONFIG_PM
	.suspend    = gspca_suspend,
	.resume     = gspca_resume,
#endif
};

module_usb_driver(sd_driver);
Commit	Line	Data
6612155a AO	1	/*
	2	* kinect sensor device camera, gspca driver
	3	*
	4	* Copyright (C) 2011 Antonio Ospite <ospite@studenti.unina.it>
	5	*
	6	* Based on the OpenKinect project and libfreenect
	7	* http://openkinect.org/wiki/Init_Analysis
	8	*
	9	* Special thanks to Steven Toth and kernellabs.com for sponsoring a Kinect
	10	* sensor device which I tested the driver on.
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	25	*/
	26
133a9fe9 JP	27	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
133a9fe9 JP	28
6612155a AO	29	#define MODULE_NAME "kinect"
	30
	31	#include "gspca.h"
	32
	33	#define CTRL_TIMEOUT 500
	34
	35	MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
	36	MODULE_DESCRIPTION("GSPCA/Kinect Sensor Device USB Camera Driver");
	37	MODULE_LICENSE("GPL");
	38
6612155a AO	39	struct pkt_hdr {
	40	uint8_t magic[2];
	41	uint8_t pad;
	42	uint8_t flag;
	43	uint8_t unk1;
	44	uint8_t seq;
	45	uint8_t unk2;
	46	uint8_t unk3;
	47	uint32_t timestamp;
	48	};
	49
	50	struct cam_hdr {
	51	uint8_t magic[2];
	52	uint16_t len;
	53	uint16_t cmd;
	54	uint16_t tag;
	55	};
	56
	57	/* specific webcam descriptor */
	58	struct sd {
	59	struct gspca_dev gspca_dev; /* !! must be the first item */
	60	uint16_t cam_tag; /* a sequence number for packets */
3fabe8f4	61	uint8_t stream_flag; /* to identify different stream types */
bb066467 DF	62	uint8_t obuf[0x400]; /* output buffer for control commands */
bb066467 DF	63	uint8_t ibuf[0x200]; /* input buffer for control commands */
6612155a AO	64	};
	65
	66	/* V4L2 controls supported by the driver */
	67	/* controls prototypes here */
	68
	69	static const struct ctrl sd_ctrls[] = {
	70	};
	71
	72	#define MODE_640x480 0x0001
	73	#define MODE_640x488 0x0002
	74	#define MODE_1280x1024 0x0004
	75
	76	#define FORMAT_BAYER 0x0010
	77	#define FORMAT_UYVY 0x0020
	78	#define FORMAT_Y10B 0x0040
	79
	80	#define FPS_HIGH 0x0100
	81
	82	static const struct v4l2_pix_format video_camera_mode[] = {
	83	{640, 480, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
	84	.bytesperline = 640,
	85	.sizeimage = 640 * 480,
	86	.colorspace = V4L2_COLORSPACE_SRGB,
	87	.priv = MODE_640x480 \| FORMAT_BAYER \| FPS_HIGH},
	88	{640, 480, V4L2_PIX_FMT_UYVY, V4L2_FIELD_NONE,
	89	.bytesperline = 640 * 2,
	90	.sizeimage = 640 * 480 * 2,
	91	.colorspace = V4L2_COLORSPACE_SRGB,
	92	.priv = MODE_640x480 \| FORMAT_UYVY},
	93	{1280, 1024, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
	94	.bytesperline = 1280,
	95	.sizeimage = 1280 * 1024,
	96	.colorspace = V4L2_COLORSPACE_SRGB,
	97	.priv = MODE_1280x1024 \| FORMAT_BAYER},
	98	{640, 488, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
	99	.bytesperline = 640 * 10 / 8,
	100	.sizeimage = 640 * 488 * 10 / 8,
	101	.colorspace = V4L2_COLORSPACE_SRGB,
	102	.priv = MODE_640x488 \| FORMAT_Y10B \| FPS_HIGH},
	103	{1280, 1024, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
	104	.bytesperline = 1280 * 10 / 8,
	105	.sizeimage = 1280 * 1024 * 10 / 8,
	106	.colorspace = V4L2_COLORSPACE_SRGB,
	107	.priv = MODE_1280x1024 \| FORMAT_Y10B},
	108	};
	109
	110	static int kinect_write(struct usb_device udev, uint8_t data,
	111	uint16_t wLength)
	112	{
	113	return usb_control_msg(udev,
	114	usb_sndctrlpipe(udev, 0),
	115	0x00,
	116	USB_DIR_OUT \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	117	0, 0, data, wLength, CTRL_TIMEOUT);
	118	}
	119
	120	static int kinect_read(struct usb_device udev, uint8_t data, uint16_t wLength)
	121	{
	122	return usb_control_msg(udev,
	123	usb_rcvctrlpipe(udev, 0),
	124	0x00,
	125	USB_DIR_IN \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	126	0, 0, data, wLength, CTRL_TIMEOUT);
	127	}
128
129	static int send_cmd(struct gspca_dev gspca_dev, uint16_t cmd, void cmdbuf,
130	unsigned int cmd_len, void *replybuf, unsigned int reply_len)
131	{
132	struct sd sd = (struct sd ) gspca_dev;
133	struct usb_device *udev = gspca_dev->dev;
134	int res, actual_len;
bb066467 DF	135	uint8_t *obuf = sd->obuf;
bb066467 DF	136	uint8_t *ibuf = sd->ibuf;
6612155a AO	137	struct cam_hdr chdr = (void )obuf;
	138	struct cam_hdr rhdr = (void )ibuf;
	139
	140	if (cmd_len & 1 \|\| cmd_len > (0x400 - sizeof(*chdr))) {
133a9fe9	141	pr_err("send_cmd: Invalid command length (0x%x)\n", cmd_len);
6612155a AO	142	return -1;
	143	}
	144
	145	chdr->magic[0] = 0x47;
	146	chdr->magic[1] = 0x4d;
	147	chdr->cmd = cpu_to_le16(cmd);
	148	chdr->tag = cpu_to_le16(sd->cam_tag);
	149	chdr->len = cpu_to_le16(cmd_len / 2);
	150
	151	memcpy(obuf+sizeof(*chdr), cmdbuf, cmd_len);
	152
	153	res = kinect_write(udev, obuf, cmd_len + sizeof(*chdr));
	154	PDEBUG(D_USBO, "Control cmd=%04x tag=%04x len=%04x: %d", cmd,
	155	sd->cam_tag, cmd_len, res);
	156	if (res < 0) {
133a9fe9	157	pr_err("send_cmd: Output control transfer failed (%d)\n", res);
6612155a AO	158	return res;
	159	}
	160
	161	do {
	162	actual_len = kinect_read(udev, ibuf, 0x200);
	163	} while (actual_len == 0);
	164	PDEBUG(D_USBO, "Control reply: %d", res);
	165	if (actual_len < sizeof(*rhdr)) {
133a9fe9	166	pr_err("send_cmd: Input control transfer failed (%d)\n", res);
6612155a AO	167	return res;
	168	}
	169	actual_len -= sizeof(*rhdr);
	170
	171	if (rhdr->magic[0] != 0x52 \|\| rhdr->magic[1] != 0x42) {
133a9fe9 JP	172	pr_err("send_cmd: Bad magic %02x %02x\n",
133a9fe9 JP	173	rhdr->magic[0], rhdr->magic[1]);
6612155a AO	174	return -1;
	175	}
	176	if (rhdr->cmd != chdr->cmd) {
133a9fe9 JP	177	pr_err("send_cmd: Bad cmd %02x != %02x\n",
133a9fe9 JP	178	rhdr->cmd, chdr->cmd);
6612155a AO	179	return -1;
	180	}
	181	if (rhdr->tag != chdr->tag) {
133a9fe9 JP	182	pr_err("send_cmd: Bad tag %04x != %04x\n",
133a9fe9 JP	183	rhdr->tag, chdr->tag);
6612155a AO	184	return -1;
	185	}
	186	if (cpu_to_le16(rhdr->len) != (actual_len/2)) {
133a9fe9 JP	187	pr_err("send_cmd: Bad len %04x != %04x\n",
133a9fe9 JP	188	cpu_to_le16(rhdr->len), (int)(actual_len/2));
6612155a AO	189	return -1;
	190	}
	191
	192	if (actual_len > reply_len) {
133a9fe9 JP	193	pr_warn("send_cmd: Data buffer is %d bytes long, but got %d bytes\n",
133a9fe9 JP	194	reply_len, actual_len);
6612155a AO	195	memcpy(replybuf, ibuf+sizeof(*rhdr), reply_len);
	196	} else {
	197	memcpy(replybuf, ibuf+sizeof(*rhdr), actual_len);
	198	}
	199
	200	sd->cam_tag++;
	201
	202	return actual_len;
	203	}
	204
	205	static int write_register(struct gspca_dev *gspca_dev, uint16_t reg,
	206	uint16_t data)
	207	{
	208	uint16_t reply[2];
	209	uint16_t cmd[2];
	210	int res;
	211
	212	cmd[0] = cpu_to_le16(reg);
	213	cmd[1] = cpu_to_le16(data);
	214
	215	PDEBUG(D_USBO, "Write Reg 0x%04x <= 0x%02x", reg, data);
	216	res = send_cmd(gspca_dev, 0x03, cmd, 4, reply, 4);
	217	if (res < 0)
	218	return res;
	219	if (res != 2) {
133a9fe9 JP	220	pr_warn("send_cmd returned %d [%04x %04x], 0000 expected\n",
133a9fe9 JP	221	res, reply[0], reply[1]);
6612155a AO	222	}
	223	return 0;
	224	}
	225
	226	/* this function is called at probe time */
	227	static int sd_config(struct gspca_dev *gspca_dev,
	228	const struct usb_device_id *id)
	229	{
	230	struct sd sd = (struct sd ) gspca_dev;
	231	struct cam *cam;
	232
	233	sd->cam_tag = 0;
	234
f1703aa6	235	/* Only video stream is supported for now,
6612155a AO	236	* which has stream flag = 0x80 */
	237	sd->stream_flag = 0x80;
	238
	239	cam = &gspca_dev->cam;
	240
	241	cam->cam_mode = video_camera_mode;
	242	cam->nmodes = ARRAY_SIZE(video_camera_mode);
	243
	244	#if 0
f1703aa6	245	/* Setting those values is not needed for video stream */
6612155a AO	246	cam->npkt = 15;
	247	gspca_dev->pkt_size = 960 * 2;
	248	#endif
	249
	250	return 0;
	251	}
	252
	253	/* this function is called at probe and resume time */
	254	static int sd_init(struct gspca_dev *gspca_dev)
	255	{
	256	PDEBUG(D_PROBE, "Kinect Camera device.");
	257
	258	return 0;
	259	}
	260
	261	static int sd_start(struct gspca_dev *gspca_dev)
	262	{
	263	int mode;
	264	uint8_t fmt_reg, fmt_val;
	265	uint8_t res_reg, res_val;
	266	uint8_t fps_reg, fps_val;
	267	uint8_t mode_val;
	268
	269	mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
	270
	271	if (mode & FORMAT_Y10B) {
	272	fmt_reg = 0x19;
	273	res_reg = 0x1a;
	274	fps_reg = 0x1b;
	275	mode_val = 0x03;
	276	} else {
	277	fmt_reg = 0x0c;
	278	res_reg = 0x0d;
	279	fps_reg = 0x0e;
	280	mode_val = 0x01;
	281	}
	282
	283	/* format */
	284	if (mode & FORMAT_UYVY)
	285	fmt_val = 0x05;
	286	else
	287	fmt_val = 0x00;
	288
	289	if (mode & MODE_1280x1024)
	290	res_val = 0x02;
	291	else
	292	res_val = 0x01;
	293
	294	if (mode & FPS_HIGH)
	295	fps_val = 0x1e;
	296	else
	297	fps_val = 0x0f;
	298
	299
	300	/* turn off IR-reset function */
	301	write_register(gspca_dev, 0x105, 0x00);
	302
	303	/* Reset video stream */
	304	write_register(gspca_dev, 0x05, 0x00);
	305
	306	/* Due to some ridiculous condition in the firmware, we have to start
	307	* and stop the depth stream before the camera will hand us 1280x1024
	308	* IR. This is a stupid workaround, but we've yet to find a better
	309	* solution.
310	*
311	* Thanks to Drew Fisher for figuring this out.
312	*/
313	if (mode & (FORMAT_Y10B \| MODE_1280x1024)) {
314	write_register(gspca_dev, 0x13, 0x01);
315	write_register(gspca_dev, 0x14, 0x1e);
316	write_register(gspca_dev, 0x06, 0x02);
317	write_register(gspca_dev, 0x06, 0x00);
318	}
319
320	write_register(gspca_dev, fmt_reg, fmt_val);
321	write_register(gspca_dev, res_reg, res_val);
322	write_register(gspca_dev, fps_reg, fps_val);
323
324	/* Start video stream */
325	write_register(gspca_dev, 0x05, mode_val);
326
327	/* disable Hflip */
328	write_register(gspca_dev, 0x47, 0x00);
329
330	return 0;
331	}
332
333	static void sd_stopN(struct gspca_dev *gspca_dev)
334	{
335	/* reset video stream */
336	write_register(gspca_dev, 0x05, 0x00);
337	}
338
339	static void sd_pkt_scan(struct gspca_dev gspca_dev, u8 __data, int len)
340	{
341	struct sd sd = (struct sd ) gspca_dev;
342
343	struct pkt_hdr hdr = (void )__data;
344	uint8_t data = __data + sizeof(hdr);
345	int datalen = len - sizeof(*hdr);
346
347	uint8_t sof = sd->stream_flag \| 1;
348	uint8_t mof = sd->stream_flag \| 2;
349	uint8_t eof = sd->stream_flag \| 5;
350
351	if (len < 12)
352	return;
353
354	if (hdr->magic[0] != 'R' \|\| hdr->magic[1] != 'B') {
133a9fe9 JP	355	pr_warn("[Stream %02x] Invalid magic %02x%02x\n",
133a9fe9 JP	356	sd->stream_flag, hdr->magic[0], hdr->magic[1]);
6612155a AO	357	return;
	358	}
	359
	360	if (hdr->flag == sof)
	361	gspca_frame_add(gspca_dev, FIRST_PACKET, data, datalen);
	362
	363	else if (hdr->flag == mof)
	364	gspca_frame_add(gspca_dev, INTER_PACKET, data, datalen);
	365
	366	else if (hdr->flag == eof)
	367	gspca_frame_add(gspca_dev, LAST_PACKET, data, datalen);
	368
	369	else
133a9fe9	370	pr_warn("Packet type not recognized...\n");
6612155a AO	371	}
	372
	373	/* sub-driver description */
	374	static const struct sd_desc sd_desc = {
	375	.name = MODULE_NAME,
	376	.ctrls = sd_ctrls,
	377	.nctrls = ARRAY_SIZE(sd_ctrls),
	378	.config = sd_config,
	379	.init = sd_init,
	380	.start = sd_start,
	381	.stopN = sd_stopN,
	382	.pkt_scan = sd_pkt_scan,
	383	/*
	384	.querymenu = sd_querymenu,
	385	.get_streamparm = sd_get_streamparm,
	386	.set_streamparm = sd_set_streamparm,
	387	*/
	388	};
	389
	390	/* -- module initialisation -- */
f7242d30	391	static const struct usb_device_id device_table[] = {
6612155a AO	392	{USB_DEVICE(0x045e, 0x02ae)},
	393	{}
	394	};
	395
	396	MODULE_DEVICE_TABLE(usb, device_table);
	397
	398	/* -- device connect -- */
	399	static int sd_probe(struct usb_interface intf, const struct usb_device_id id)
	400	{
	401	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
	402	THIS_MODULE);
	403	}
	404
	405	static struct usb_driver sd_driver = {
	406	.name = MODULE_NAME,
	407	.id_table = device_table,
	408	.probe = sd_probe,
	409	.disconnect = gspca_disconnect,
	410	#ifdef CONFIG_PM
	411	.suspend = gspca_suspend,
	412	.resume = gspca_resume,
	413	#endif
	414	};
	415
ecb3b2b3	416	module_usb_driver(sd_driver);