tvp5150.c

V4l driver for DVB HD

	tvp5150_set_std(c, decoder->norm);
};

static int tvp5150_get_ctrl(struct i2c_client *c, struct v4l2_control *ctrl)
{
/*	struct tvp5150 *decoder = i2c_get_clientdata(c); */

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		ctrl->value = tvp5150_read(c, TVP5150_BRIGHT_CTL);
		return 0;
	case V4L2_CID_CONTRAST:
		ctrl->value = tvp5150_read(c, TVP5150_CONTRAST_CTL);
		return 0;
	case V4L2_CID_SATURATION:
		ctrl->value = tvp5150_read(c, TVP5150_SATURATION_CTL);
		return 0;
	case V4L2_CID_HUE:
		ctrl->value = tvp5150_read(c, TVP5150_HUE_CTL);
		return 0;
	}
	return -EINVAL;
}

static int tvp5150_set_ctrl(struct i2c_client *c, struct v4l2_control *ctrl)
{
/*	struct tvp5150 *decoder = i2c_get_clientdata(c); */

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		tvp5150_write(c, TVP5150_BRIGHT_CTL, ctrl->value);
		return 0;
	case V4L2_CID_CONTRAST:
		tvp5150_write(c, TVP5150_CONTRAST_CTL, ctrl->value);
		return 0;
	case V4L2_CID_SATURATION:
		tvp5150_write(c, TVP5150_SATURATION_CTL, ctrl->value);
		return 0;
	case V4L2_CID_HUE:
		tvp5150_write(c, TVP5150_HUE_CTL, ctrl->value);
		return 0;
	}
	return -EINVAL;
}

/****************************************************************************
			I2C Command
 ****************************************************************************/
static int tvp5150_command(struct i2c_client *c,
			   unsigned int cmd, void *arg)
{
	struct tvp5150 *decoder = i2c_get_clientdata(c);

	switch (cmd) {

	case 0:
	case VIDIOC_INT_RESET:
		tvp5150_reset(c);
		break;
	case VIDIOC_INT_G_VIDEO_ROUTING:
	{
		struct v4l2_routing *route = arg;

		*route = decoder->route;
		break;
	}
	case VIDIOC_INT_S_VIDEO_ROUTING:
	{
		struct v4l2_routing *route = arg;

		decoder->route = *route;
		tvp5150_selmux(c);
		break;
	}
	case VIDIOC_S_STD:
		if (decoder->norm == *(v4l2_std_id *)arg)
			break;
		return tvp5150_set_std(c, *(v4l2_std_id *)arg);
	case VIDIOC_G_STD:
		*(v4l2_std_id *)arg = decoder->norm;
		break;

	case VIDIOC_G_SLICED_VBI_CAP:
	{
		struct v4l2_sliced_vbi_cap *cap = arg;
		tvp5150_dbg(1, "VIDIOC_G_SLICED_VBI_CAP\n");

		tvp5150_vbi_get_cap(vbi_ram_default, cap);
		break;
	}
	case VIDIOC_S_FMT:
	{
		struct v4l2_format *fmt;
		struct v4l2_sliced_vbi_format *svbi;
		int i;

		fmt = arg;
		if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
			return -EINVAL;
		svbi = &fmt->fmt.sliced;
		if (svbi->service_set != 0) {
			for (i = 0; i <= 23; i++) {
				svbi->service_lines[1][i] = 0;

				svbi->service_lines[0][i]=tvp5150_set_vbi(c,
					 vbi_ram_default,
					 svbi->service_lines[0][i],0xf0,i,3);
			}
			/* Enables FIFO */
			tvp5150_write(c, TVP5150_FIFO_OUT_CTRL,1);
		} else {
			/* Disables FIFO*/
			tvp5150_write(c, TVP5150_FIFO_OUT_CTRL,0);

			/* Disable Full Field */
			tvp5150_write(c, TVP5150_FULL_FIELD_ENA, 0);

			/* Disable Line modes */
			for (i=TVP5150_LINE_MODE_INI; i<=TVP5150_LINE_MODE_END; i++)
				tvp5150_write(c, i, 0xff);
		}
		break;
	}
	case VIDIOC_G_FMT:
	{
		struct v4l2_format *fmt;
		struct v4l2_sliced_vbi_format *svbi;

		int i, mask=0;

		fmt = arg;
		if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
			return -EINVAL;
		svbi = &fmt->fmt.sliced;
		memset(svbi, 0, sizeof(*svbi));

		for (i = 0; i <= 23; i++) {
			svbi->service_lines[0][i]=tvp5150_get_vbi(c,
				vbi_ram_default,i);
			mask|=svbi->service_lines[0][i];
		}
		svbi->service_set=mask;
		break;
	}
#if 0
	/* This will not work for USB devices */
	case VIDIOC_INT_G_VBI_DATA:
	{
		struct v4l2_sliced_vbi_data *data = arg;
		u8 status;

		status=tvp5150_read(c, TVP5150_VDP_STATUS_REG);

		if (data->id & V4L2_SLICED_CAPTION) {
			if (!field && (status&0x10)) {
				data->data[0]=tvp5150_read(c, TVP5150_CC_DATA_INI);
				data->data[1]=tvp5150_read(c, TVP5150_CC_DATA_INI+1);
			} if (field && (status&0x8)) {
				data->data[0]=tvp5150_read(c, TVP5150_CC_DATA_INI+2);
				data->data[1]=tvp5150_read(c, TVP5150_CC_DATA_INI+3);
			} else data->id=0;
			return 0;
		} else if (data->id & V4L2_SLICED_WSS) {
		} else if (data->id & V4L2_SLICED_VPS) {
		}
		break;
	}
	case VIDIOC_INT_DECODE_VBI_LINE:
	{
		struct v4l2_decode_vbi_line *vbi = arg;
		u8 status;

		status=tvp5150_read(c, TVP5150_VDP_STATUS_REG);

		if (status&0x80) {
			tvp5150_err("Full field error");
			status&=0x7f;
			tvp5150_write(c, TVP5150_VDP_STATUS_REG,status);
		}

		/* FIFO */
		/* Current V4L2 API allows sliced VBI only with fifo mode,
		   since line and types are not provided on other means
		   on tvp5150.
		 */
		if (!(status&0x40)) 	/* Has FIFO data */
			decode_vbi_data(c,vbi);

		break;
	}
#endif

#ifdef CONFIG_VIDEO_ADV_DEBUG
	case VIDIOC_INT_G_REGISTER:
	{
		struct v4l2_register *reg = arg;

		if (reg->i2c_id != I2C_DRIVERID_TVP5150)
			return -EINVAL;
		reg->val = tvp5150_read(c, reg->reg & 0xff);
		break;
	}

	case VIDIOC_INT_S_REGISTER:
	{
		struct v4l2_register *reg = arg;

		if (reg->i2c_id != I2C_DRIVERID_TVP5150)
			return -EINVAL;
		if (!capable(CAP_SYS_ADMIN))
			return -EPERM;
		tvp5150_write(c, reg->reg & 0xff, reg->val & 0xff);
		break;
	}
#endif

	case VIDIOC_LOG_STATUS:
		dump_reg(c);
		break;

	case VIDIOC_G_TUNER:
		{
			struct v4l2_tuner *vt = arg;
			int status = tvp5150_read(c, 0x88);

			vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
			break;
		}
	case VIDIOC_QUERYCTRL:
		{
			struct v4l2_queryctrl *qc = arg;
			int i;

			tvp5150_dbg(1, "VIDIOC_QUERYCTRL called\n");

			for (i = 0; i < ARRAY_SIZE(tvp5150_qctrl); i++)
				if (qc->id && qc->id == tvp5150_qctrl[i].id) {
					memcpy(qc, &(tvp5150_qctrl[i]),
					       sizeof(*qc));
					return 0;
				}

			return -EINVAL;
		}
	case VIDIOC_G_CTRL:
		{
			struct v4l2_control *ctrl = arg;
			tvp5150_dbg(1, "VIDIOC_G_CTRL called\n");

			return tvp5150_get_ctrl(c, ctrl);
		}
	case VIDIOC_S_CTRL:
		{
			struct v4l2_control *ctrl = arg;
			u8 i, n;
			n = sizeof(tvp5150_qctrl) / sizeof(tvp5150_qctrl[0]);
			for (i = 0; i < n; i++)
				if (ctrl->id == tvp5150_qctrl[i].id) {
					if (ctrl->value <
					    tvp5150_qctrl[i].minimum
					    || ctrl->value >
					    tvp5150_qctrl[i].maximum)
						return -ERANGE;
					tvp5150_dbg(1,
						"VIDIOC_S_CTRL: id=%d, value=%d\n",
						ctrl->id, ctrl->value);
					return tvp5150_set_ctrl(c, ctrl);
				}
			return -EINVAL;
		}

	default:
		return -EINVAL;
	}

	return 0;
}

/****************************************************************************
			I2C Client & Driver
 ****************************************************************************/
static struct i2c_driver driver;

static struct i2c_client client_template = {
	.name = "(unset)",
#if LINUX_VERSION_CODE <=  KERNEL_VERSION(2,6,15)
	.flags = I2C_CLIENT_ALLOW_USE,
#endif
	.driver = &driver,
};

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
static int tvp5150_detect_client(struct i2c_adapter *adapter,
				 int address, int kind)
#else
static int tvp5150_detect_client(struct i2c_adapter *adapter,
				 int address, unsigned short flags, int kind)
#endif
{
	struct i2c_client *c;
	struct tvp5150 *core;
	int rv;

	if (debug)
		printk( KERN_INFO
		"tvp5150.c: detecting tvp5150 client on address 0x%x\n",
		address << 1);

	client_template.adapter = adapter;
	client_template.addr = address;

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality
	    (adapter,
	     I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
		return 0;

	c = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
	if (c == 0)
		return -ENOMEM;
	memcpy(c, &client_template, sizeof(struct i2c_client));

	core = kzalloc(sizeof(struct tvp5150), GFP_KERNEL);
	if (core == 0) {
		kfree(c);
		return -ENOMEM;
	}
	i2c_set_clientdata(c, core);

	rv = i2c_attach_client(c);

	core->norm = V4L2_STD_ALL;	/* Default is autodetect */
	core->route.input = TVP5150_COMPOSITE1;
	core->enable = 1;
	core->bright = 32768;
	core->contrast = 32768;
	core->hue = 32768;
	core->sat = 32768;

	if (rv) {
		kfree(c);
		kfree(core);
		return rv;
	}

	if (debug > 1)
		dump_reg(c);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
	MOD_INC_USE_COUNT;
#endif
	return 0;
}

static int tvp5150_attach_adapter(struct i2c_adapter *adapter)
{
	if (debug)
		printk( KERN_INFO
		"tvp5150.c: starting probe for adapter %s (0x%x)\n",
		adapter->name, adapter->id);
	return i2c_probe(adapter, &addr_data, &tvp5150_detect_client);
}

static int tvp5150_detach_client(struct i2c_client *c)
{
	struct tvp5150 *decoder = i2c_get_clientdata(c);
	int err;

	tvp5150_dbg(1,
		"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
		c->addr << 1);

	err = i2c_detach_client(c);
	if (err) {
		return err;
	}

	kfree(decoder);
	kfree(c);

	return 0;
}

/* ----------------------------------------------------------------------- */

static struct i2c_driver driver = {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))&&(LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,15))
	.owner = THIS_MODULE,
#endif
#if LINUX_VERSION_CODE <=  KERNEL_VERSION(2,6,15)
	.name = "tvp5150",
	.flags = I2C_DF_NOTIFY,
#else
	.driver = {
		.name = "tvp5150",
	},
#endif
	.id = I2C_DRIVERID_TVP5150,

	.attach_adapter = tvp5150_attach_adapter,
	.detach_client = tvp5150_detach_client,

	.command = tvp5150_command,
#if 0
	.driver = {
		   .suspend = tvp5150_suspend,
		   .resume = tvp5150_resume,
		   },
#endif
};

static int __init tvp5150_init(void)
{
	return i2c_add_driver(&driver);
}

static void __exit tvp5150_exit(void)
{
	i2c_del_driver(&driver);
}

module_init(tvp5150_init);
module_exit(tvp5150_exit);