Initial import

1 files changed, 192 insertions, 0 deletions

diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
new file mode 100644
index 000000000..1cc0c5ba1
--- /dev/null
+++ b/include/media/v4l2-common.h
@@ -0,0 +1,192 @@
+/*
+    v4l2 common internal API header
+
+    This header contains internal shared ioctl definitions for use by the
+    internal low-level v4l2 drivers.
+    Each ioctl begins with VIDIOC_INT_ to clearly mark that it is an internal
+    define,
+
+    Copyright (C) 2005  Hans Verkuil <hverkuil@xs4all.nl>
+
+    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef V4L2_COMMON_H_
+#define V4L2_COMMON_H_
+
+#include <media/v4l2-dev.h>
+
+/* Common printk constucts for v4l-i2c drivers. These macros create a unique
+   prefix consisting of the driver name, the adapter number and the i2c
+   address. */
+#define v4l_printk(level, name, adapter, addr, fmt, arg...) \
+	printk(level "%s %d-%04x: " fmt, name, i2c_adapter_id(adapter), addr , ## arg)
+
+#define v4l_client_printk(level, client, fmt, arg...)			    \
+	v4l_printk(level, (client)->dev.driver->name, (client)->adapter, \
+		   (client)->addr, fmt , ## arg)
+
+#define v4l_err(client, fmt, arg...) \
+	v4l_client_printk(KERN_ERR, client, fmt , ## arg)
+
+#define v4l_warn(client, fmt, arg...) \
+	v4l_client_printk(KERN_WARNING, client, fmt , ## arg)
+
+#define v4l_info(client, fmt, arg...) \
+	v4l_client_printk(KERN_INFO, client, fmt , ## arg)
+
+/* These three macros assume that the debug level is set with a module
+   parameter called 'debug'. */
+#define v4l_dbg(level, debug, client, fmt, arg...)			     \
+	do { 								     \
+		if (debug >= (level))					     \
+			v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \
+	} while (0)
+
+/* ------------------------------------------------------------------------- */
+
+/* These printk constructs can be used with v4l2_device and v4l2_subdev */
+#define v4l2_printk(level, dev, fmt, arg...) \
+	printk(level "%s: " fmt, (dev)->name , ## arg)
+
+#define v4l2_err(dev, fmt, arg...) \
+	v4l2_printk(KERN_ERR, dev, fmt , ## arg)
+
+#define v4l2_warn(dev, fmt, arg...) \
+	v4l2_printk(KERN_WARNING, dev, fmt , ## arg)
+
+#define v4l2_info(dev, fmt, arg...) \
+	v4l2_printk(KERN_INFO, dev, fmt , ## arg)
+
+/* These three macros assume that the debug level is set with a module
+   parameter called 'debug'. */
+#define v4l2_dbg(level, debug, dev, fmt, arg...)			\
+	do { 								\
+		if (debug >= (level))					\
+			v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); 	\
+	} while (0)
+
+/* ------------------------------------------------------------------------- */
+
+/* Control helper function */
+
+int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
+
+/* ------------------------------------------------------------------------- */
+
+/* I2C Helper functions */
+
+struct i2c_driver;
+struct i2c_adapter;
+struct i2c_client;
+struct i2c_device_id;
+struct v4l2_device;
+struct v4l2_subdev;
+struct v4l2_subdev_ops;
+
+
+/* Load an i2c module and return an initialized v4l2_subdev struct.
+   The client_type argument is the name of the chip that's on the adapter. */
+struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
+		struct i2c_adapter *adapter, const char *client_type,
+		u8 addr, const unsigned short *probe_addrs);
+
+struct i2c_board_info;
+
+struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
+		struct i2c_adapter *adapter, struct i2c_board_info *info,
+		const unsigned short *probe_addrs);
+
+/* Initialize a v4l2_subdev with data from an i2c_client struct */
+void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
+		const struct v4l2_subdev_ops *ops);
+/* Return i2c client address of v4l2_subdev. */
+unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd);
+
+enum v4l2_i2c_tuner_type {
+	ADDRS_RADIO,	/* Radio tuner addresses */
+	ADDRS_DEMOD,	/* Demod tuner addresses */
+	ADDRS_TV,	/* TV tuner addresses */
+	/* TV tuner addresses if demod is present, this excludes
+	   addresses used by the demodulator from the list of
+	   candidates. */
+	ADDRS_TV_WITH_DEMOD,
+};
+/* Return a list of I2C tuner addresses to probe. Use only if the tuner
+   addresses are unknown. */
+const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type);
+
+/* ------------------------------------------------------------------------- */
+
+/* SPI Helper functions */
+#if defined(CONFIG_SPI)
+
+#include <linux/spi/spi.h>
+
+struct spi_device;
+
+/* Load an spi module and return an initialized v4l2_subdev struct.
+   The client_type argument is the name of the chip that's on the adapter. */
+struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
+		struct spi_master *master, struct spi_board_info *info);
+
+/* Initialize a v4l2_subdev with data from an spi_device struct */
+void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,
+		const struct v4l2_subdev_ops *ops);
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+/* Note: these remaining ioctls/structs should be removed as well, but they are
+   still used in tuner-simple.c (TUNER_SET_CONFIG), cx18/ivtv (RESET) and
+   v4l2-int-device.h (v4l2_routing). To remove these ioctls some more cleanup
+   is needed in those modules. */
+
+/* s_config */
+struct v4l2_priv_tun_config {
+	int tuner;
+	void *priv;
+};
+#define TUNER_SET_CONFIG           _IOW('d', 92, struct v4l2_priv_tun_config)
+
+#define VIDIOC_INT_RESET            	_IOW ('d', 102, u32)
+
+struct v4l2_routing {
+	u32 input;
+	u32 output;
+};
+
+/* ------------------------------------------------------------------------- */
+
+/* Miscellaneous helper functions */
+
+void v4l_bound_align_image(unsigned int *w, unsigned int wmin,
+			   unsigned int wmax, unsigned int walign,
+			   unsigned int *h, unsigned int hmin,
+			   unsigned int hmax, unsigned int halign,
+			   unsigned int salign);
+
+struct v4l2_discrete_probe {
+	const struct v4l2_frmsize_discrete	*sizes;
+	int					num_sizes;
+};
+
+const struct v4l2_frmsize_discrete *v4l2_find_nearest_format(
+		const struct v4l2_discrete_probe *probe,
+		s32 width, s32 height);
+
+void v4l2_get_timestamp(struct timeval *tv);
+
+#endif /* V4L2_COMMON_H_ */