sunplus.c

trident tm5600的linux驱动

/* write <len> bytes from gspca_dev->usb_buf */
static void reg_w(struct gspca_dev *gspca_dev,
		   __u16 req,
		   __u16 value,
		   __u16 index,
		   __u16 len)
{
#ifdef GSPCA_DEBUG
	if (len > USB_BUF_SZ) {
		err("reg_w: buffer overflow");
		return;
	}
#endif
	usb_control_msg(gspca_dev->dev,
			usb_sndctrlpipe(gspca_dev->dev, 0),
			req,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			value, index,
			len ? gspca_dev->usb_buf : NULL, len,
			500);
}

/* write req / index / value */
static int reg_w_riv(struct usb_device *dev,
		     __u16 req, __u16 index, __u16 value)
{
	int ret;

	ret = usb_control_msg(dev,
			usb_sndctrlpipe(dev, 0),
			req,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			value, index, NULL, 0, 500);
	PDEBUG(D_USBO, "reg write: 0x%02x,0x%02x:0x%02x, %d",
		req, index, value, ret);
	if (ret < 0)
		PDEBUG(D_ERR, "reg write: error %d", ret);
	return ret;
}

/* read 1 byte */
static int reg_r_1(struct gspca_dev *gspca_dev,
			__u16 value)	/* wValue */
{
	int ret;

	ret = usb_control_msg(gspca_dev->dev,
			usb_rcvctrlpipe(gspca_dev->dev, 0),
			0x20,			/* request */
			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			value,
			0,			/* index */
			gspca_dev->usb_buf, 1,
			500);			/* timeout */
	if (ret < 0) {
		PDEBUG(D_ERR, "reg_r_1 err %d", ret);
		return 0;
	}
	return gspca_dev->usb_buf[0];
}

/* read 1 or 2 bytes - returns < 0 if error */
static int reg_r_12(struct gspca_dev *gspca_dev,
			__u16 req,	/* bRequest */
			__u16 index,	/* wIndex */
			__u16 length)	/* wLength (1 or 2 only) */
{
	int ret;

	gspca_dev->usb_buf[1] = 0;
	ret = usb_control_msg(gspca_dev->dev,
			usb_rcvctrlpipe(gspca_dev->dev, 0),
			req,
			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			0,		/* value */
			index,
			gspca_dev->usb_buf, length,
			500);
	if (ret < 0) {
		PDEBUG(D_ERR, "reg_read err %d", ret);
		return -1;
	}
	return (gspca_dev->usb_buf[1] << 8) + gspca_dev->usb_buf[0];
}

static int write_vector(struct gspca_dev *gspca_dev,
			const __u16 data[][3])
{
	struct usb_device *dev = gspca_dev->dev;
	int ret, i = 0;

	while (data[i][0] != 0 || data[i][1] != 0 || data[i][2] != 0) {
		ret = reg_w_riv(dev, data[i][0], data[i][2], data[i][1]);
		if (ret < 0) {
			PDEBUG(D_ERR,
				"Register write failed for 0x%x,0x%x,0x%x",
				data[i][0], data[i][1], data[i][2]);
			return ret;
		}
		i++;
	}
	return 0;
}

static int spca50x_setup_qtable(struct gspca_dev *gspca_dev,
				unsigned int request,
				unsigned int ybase,
				unsigned int cbase,
				const __u8 qtable[2][64])
{
	struct usb_device *dev = gspca_dev->dev;
	int i, err;

	/* loop over y components */
	for (i = 0; i < 64; i++) {
		err = reg_w_riv(dev, request, ybase + i, qtable[0][i]);
		if (err < 0)
			return err;
	}

	/* loop over c components */
	for (i = 0; i < 64; i++) {
		err = reg_w_riv(dev, request, cbase + i, qtable[1][i]);
		if (err < 0)
			return err;
	}
	return 0;
}

static void spca504_acknowledged_command(struct gspca_dev *gspca_dev,
			     __u16 req, __u16 idx, __u16 val)
{
	struct usb_device *dev = gspca_dev->dev;
	__u8 notdone;

	reg_w_riv(dev, req, idx, val);
	notdone = reg_r_12(gspca_dev, 0x01, 0x0001, 1);
	reg_w_riv(dev, req, idx, val);

	PDEBUG(D_FRAM, "before wait 0x%x", notdone);

	msleep(200);
	notdone = reg_r_12(gspca_dev, 0x01, 0x0001, 1);
	PDEBUG(D_FRAM, "after wait 0x%x", notdone);
}

static void spca504A_acknowledged_command(struct gspca_dev *gspca_dev,
			__u16 req,
			__u16 idx, __u16 val, __u8 stat, __u8 count)
{
	struct usb_device *dev = gspca_dev->dev;
	__u8 status;
	__u8 endcode;

	reg_w_riv(dev, req, idx, val);
	status = reg_r_12(gspca_dev, 0x01, 0x0001, 1);
	endcode = stat;
	PDEBUG(D_FRAM, "Status 0x%x Need 0x%x", status, stat);
	if (!count)
		return;
	count = 200;
	while (--count > 0) {
		msleep(10);
		/* gsmart mini2 write a each wait setting 1 ms is enought */
/*		reg_w_riv(dev, req, idx, val); */
		status = reg_r_12(gspca_dev, 0x01, 0x0001, 1);
		if (status == endcode) {
			PDEBUG(D_FRAM, "status 0x%x after wait 0x%x",
				status, 200 - count);
				break;
		}
	}
}

static int spca504B_PollingDataReady(struct gspca_dev *gspca_dev)
{
	int count = 10;

	while (--count > 0) {
		reg_r(gspca_dev, 0x21, 0, 1);
		if ((gspca_dev->usb_buf[0] & 0x01) == 0)
			break;
		msleep(10);
	}
	return gspca_dev->usb_buf[0];
}

static void spca504B_WaitCmdStatus(struct gspca_dev *gspca_dev)
{
	int count = 50;

	while (--count > 0) {
		reg_r(gspca_dev, 0x21, 1, 1);
		if (gspca_dev->usb_buf[0] != 0) {
			gspca_dev->usb_buf[0] = 0;
			reg_w(gspca_dev, 0x21, 0, 1, 1);
			reg_r(gspca_dev, 0x21, 1, 1);
			spca504B_PollingDataReady(gspca_dev);
			break;
		}
		msleep(10);
	}
}

static void spca50x_GetFirmware(struct gspca_dev *gspca_dev)
{
	__u8 *data;

	data = gspca_dev->usb_buf;
	reg_r(gspca_dev, 0x20, 0, 5);
	PDEBUG(D_STREAM, "FirmWare : %d %d %d %d %d ",
		data[0], data[1], data[2], data[3], data[4]);
	reg_r(gspca_dev, 0x23, 0, 64);
	reg_r(gspca_dev, 0x23, 1, 64);
}

static void spca504B_SetSizeType(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	struct usb_device *dev = gspca_dev->dev;
	__u8 Size;
	__u8 Type;
	int rc;

	Size = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
	Type = 0;
	switch (sd->bridge) {
	case BRIDGE_SPCA533:
		reg_w(gspca_dev, 0x31, 0, 0, 0);
		spca504B_WaitCmdStatus(gspca_dev);
		rc = spca504B_PollingDataReady(gspca_dev);
		spca50x_GetFirmware(gspca_dev);
		gspca_dev->usb_buf[0] = 2;			/* type */
		reg_w(gspca_dev, 0x24, 0, 8, 1);
		reg_r(gspca_dev, 0x24, 8, 1);

		gspca_dev->usb_buf[0] = Size;
		reg_w(gspca_dev, 0x25, 0, 4, 1);
		reg_r(gspca_dev, 0x25, 4, 1);			/* size */
		rc = spca504B_PollingDataReady(gspca_dev);

		/* Init the cam width height with some values get on init ? */
		reg_w(gspca_dev, 0x31, 0, 4, 0);
		spca504B_WaitCmdStatus(gspca_dev);
		rc = spca504B_PollingDataReady(gspca_dev);
		break;
	default:
/* case BRIDGE_SPCA504B: */
/* case BRIDGE_SPCA536: */
		gspca_dev->usb_buf[0] = Size;
		reg_w(gspca_dev, 0x25, 0, 4, 1);
		reg_r(gspca_dev, 0x25, 4, 1);			/* size */
		Type = 6;
		gspca_dev->usb_buf[0] = Type;
		reg_w(gspca_dev, 0x27, 0, 0, 1);
		reg_r(gspca_dev, 0x27, 0, 1);			/* type */
		rc = spca504B_PollingDataReady(gspca_dev);
		break;
	case BRIDGE_SPCA504:
		Size += 3;
		if (sd->subtype == AiptekMiniPenCam13) {
			/* spca504a aiptek */
			spca504A_acknowledged_command(gspca_dev,
						0x08, Size, 0,
						0x80 | (Size & 0x0f), 1);
			spca504A_acknowledged_command(gspca_dev,
							1, 3, 0, 0x9f, 0);
		} else {
			spca504_acknowledged_command(gspca_dev, 0x08, Size, 0);
		}
		break;
	case BRIDGE_SPCA504C:
		/* capture mode */
		reg_w_riv(dev, 0xa0, (0x0500 | (Size & 0x0f)), 0x00);
		reg_w_riv(dev, 0x20, 0x01, 0x0500 | (Size & 0x0f));
		break;
	}
}

static void spca504_wait_status(struct gspca_dev *gspca_dev)
{
	int cnt;

	cnt = 256;
	while (--cnt > 0) {
		/* With this we get the status, when return 0 it's all ok */
		if (reg_r_12(gspca_dev, 0x06, 0x00, 1) == 0)
			return;
		msleep(10);
	}
}

static void spca504B_setQtable(struct gspca_dev *gspca_dev)
{
	gspca_dev->usb_buf[0] = 3;
	reg_w(gspca_dev, 0x26, 0, 0, 1);
	reg_r(gspca_dev, 0x26, 0, 1);
	spca504B_PollingDataReady(gspca_dev);
}

static void sp5xx_initContBrigHueRegisters(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int pollreg = 1;

	switch (sd->bridge) {
	case BRIDGE_SPCA504:
	case BRIDGE_SPCA504C:
		pollreg = 0;
		/* fall thru */
	default:
/*	case BRIDGE_SPCA533: */
/*	case BRIDGE_SPCA504B: */
		reg_w(gspca_dev, 0, 0, 0x21a7, 0);	/* brightness */
		reg_w(gspca_dev, 0, 0x20, 0x21a8, 0);	/* contrast */
		reg_w(gspca_dev, 0, 0, 0x21ad, 0);	/* hue */
		reg_w(gspca_dev, 0, 1, 0x21ac, 0);	/* sat/hue */
		reg_w(gspca_dev, 0, 0x20, 0x21ae, 0);	/* saturation */
		reg_w(gspca_dev, 0, 0, 0x21a3, 0);	/* gamma */
		break;
	case BRIDGE_SPCA536:
		reg_w(gspca_dev, 0, 0, 0x20f0, 0);
		reg_w(gspca_dev, 0, 0x21, 0x20f1, 0);
		reg_w(gspca_dev, 0, 0x40, 0x20f5, 0);
		reg_w(gspca_dev, 0, 1, 0x20f4, 0);
		reg_w(gspca_dev, 0, 0x40, 0x20f6, 0);
		reg_w(gspca_dev, 0, 0, 0x2089, 0);
		break;
	}
	if (pollreg)
		spca504B_PollingDataReady(gspca_dev);
}

/* 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;

	cam = &gspca_dev->cam;
	cam->epaddr = 0x01;

	sd->bridge = id->driver_info >> 8;
	sd->subtype = id->driver_info;

	if (sd->subtype == AiptekMiniPenCam13) {
/* try to get the firmware as some cam answer 2.0.1.2.2
 * and should be a spca504b then overwrite that setting */
		reg_r(gspca_dev, 0x20, 0, 1);
		switch (gspca_dev->usb_buf[0]) {
		case 1:
			break;		/* (right bridge/subtype) */
		case 2:
			sd->bridge = BRIDGE_SPCA504B;
			sd->subtype = 0;
			break;
		default:
			return -ENODEV;
		}
	}

	switch (sd->bridge) {
	default:
/*	case BRIDGE_SPCA504B: */
/*	case BRIDGE_SPCA504: */
/*	case BRIDGE_SPCA536: */
		cam->cam_mode = vga_mode;
		cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
		break;
	case BRIDGE_SPCA533:
		cam->cam_mode = custom_mode;
		cam->nmodes = sizeof custom_mode / sizeof custom_mode[0];
		break;
	case BRIDGE_SPCA504C:
		cam->cam_mode = vga_mode2;
		cam->nmodes = sizeof vga_mode2 / sizeof vga_mode2[0];
		break;
	}
	sd->qindex = 5;			/* set the quantization table */
	sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
	sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
	sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value;
	return 0;
}

/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	struct usb_device *dev = gspca_dev->dev;
	int rc;
	__u8 i;
	__u8 info[6];
	int err_code;

	switch (sd->bridge) {
	case BRIDGE_SPCA504B:
		reg_w(gspca_dev, 0x1d, 0, 0, 0);
		reg_w(gspca_dev, 0, 1, 0x2306, 0);
		reg_w(gspca_dev, 0, 0, 0x0d04, 0);
		reg_w(gspca_dev, 0, 0, 0x2000, 0);
		reg_w(gspca_dev, 0, 0x13, 0x2301, 0);
		reg_w(gspca_dev, 0, 0, 0x2306, 0);
		/* fall thru */
	case BRIDGE_SPCA533:
		rc = spca504B_PollingDataReady(gspca_dev);
		spca50x_GetFirmware(gspca_dev);
		break;
	case BRIDGE_SPCA536:
		spca50x_GetFirmware(gspca_dev);
		reg_r(gspca_dev, 0x00, 0x5002, 1);
		gspca_dev->usb_buf[0] = 0;
		reg_w(gspca_dev, 0x24, 0, 0, 1);
		reg_r(gspca_dev, 0x24, 0, 1);
		rc = spca504B_PollingDataReady(gspca_dev);
		reg_w(gspca_dev, 0x34, 0, 0, 0);
		spca504B_WaitCmdStatus(gspca_dev);
		break;
	case BRIDGE_SPCA504C:	/* pccam600 */
		PDEBUG(D_STREAM, "Opening SPCA504 (PC-CAM 600)");
		reg_w_riv(dev, 0xe0, 0x0000, 0x0000);
		reg_w_riv(dev, 0xe0, 0x0000, 0x0001);	/* reset */
		spca504_wait_status(gspca_dev);
		if (sd->subtype == LogitechClickSmart420)
			write_vector(gspca_dev,
					spca504A_clicksmart420_open_data);
		else
			write_vector(gspca_dev, spca504_pccam600_open_data);
		err_code = spca50x_setup_qtable(gspca_dev,
						0x00, 0x2800,
						0x2840, qtable_creative_pccam);
		if (err_code < 0) {
			PDEBUG(D_ERR|D_STREAM, "spca50x_setup_qtable failed");
			return err_code;
		}
		break;
	default:
/*	case BRIDGE_SPCA504: */
		PDEBUG(D_STREAM, "Opening SPCA504");
		if (sd->subtype == AiptekMiniPenCam13) {
			/*****************************/
			for (i = 0; i < 6; i++)
				info[i] = reg_r_1(gspca_dev, i);
			PDEBUG(D_STREAM,
				"Read info: %d %d %d %d %d %d."
				" Should be 1,0,2,2,0,0",
				info[0], info[1], info[2],
				info[3], info[4], info[5]);
			/* spca504a aiptek */
			/* Set AE AWB Banding Type 3-> 50Hz 2-> 60Hz */
			spca504A_acknowledged_command(gspca_dev, 0x24,
							8, 3, 0x9e, 1);
			/* Twice sequencial need status 0xff->0x9e->0x9d */
			spca504A_acknowledged_command(gspca_dev, 0x24,
							8, 3, 0x9e, 0);

			spca504A_acknowledged_command(gspca_dev, 0x24,
							0, 0, 0x9d, 1);
			/******************************/
			/* spca504a aiptek */
			spca504A_acknowledged_command(gspca_dev, 0x08,
							6, 0, 0x86, 1);
/*			reg_write (dev, 0, 0x2000, 0); */
/*			reg_write (dev, 0, 0x2883, 1); */
/*			spca504A_acknowledged_command (gspca_dev, 0x08,
							6, 0, 0x86, 1); */
/*			spca504A_acknowledged_command (gspca_dev, 0x24,
							0, 0, 0x9D, 1); */
			reg_w_riv(dev, 0x0, 0x270c, 0x05); /* L92 sno1t.txt */
			reg_w_riv(dev, 0x0, 0x2310, 0x05);
			spca504A_acknowledged_command(gspca_dev, 0x01,
							0x0f, 0, 0xff, 0);
		}
		/* setup qtable */
		reg_w_riv(dev, 0, 0x2000, 0);
		reg_w_riv(dev, 0, 0x2883, 1);
		err_code = spca50x_setup_qtable(gspca_dev,
						0x00, 0x2800,
						0x2840,
						qtable_spca504_default);
		if (err_code < 0) {
			PDEBUG(D_ERR, "spca50x_setup_qtable failed");
			return err_code;
		}
		break;
	}
	return 0;
}

static int sd_start(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	struct usb_device *dev = gspca_dev->dev;
	int rc;
	int enable;
	__u8 i;
	__u8 info[6];

	if (sd->bridge == BRIDGE_SPCA504B)
		spca504B_setQtable(gspca_dev);
	spca504B_SetSizeType(gspca_dev);
	switch (sd->bridge) {
	default: