#ifndef V4L2_COMMON_H_
#define V4L2_COMMON_H_
-/* v4l debugging and diagnostics */
+#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
v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \
} while (0)
-/* Prints the ioctl in a human-readable format */
-extern void v4l_printk_ioctl(unsigned int cmd);
+/* ------------------------------------------------------------------------- */
-/* Prints the ioctl and arg in a human-readable format */
-extern void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg);
+/* 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)
-/* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */
-#define v4l_print_ioctl(name, cmd) \
- do { \
- printk(KERN_DEBUG "%s: ", name); \
- v4l_printk_ioctl(cmd); \
- } while (0)
+#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)
-/* Use this macro in I2C drivers where 'client' is the struct i2c_client
- pointer */
-#define v4l_i2c_print_ioctl(client, cmd) \
- do { \
- v4l_client_printk(KERN_DEBUG, client, ""); \
- v4l_printk_ioctl(cmd); \
+/* 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)
/* ------------------------------------------------------------------------- */
-/* Internal ioctls */
+/* Priority helper functions */
+
+struct v4l2_prio_state {
+ atomic_t prios[4];
+};
+int v4l2_prio_init(struct v4l2_prio_state *global);
+int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
+ enum v4l2_priority new);
+int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
+int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
+enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
+int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
+
+/* ------------------------------------------------------------------------- */
+
+/* Control helper functions */
+
+int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
+ const char **menu_items);
+const char *v4l2_ctrl_get_name(u32 id);
+const char **v4l2_ctrl_get_menu(u32 id);
+int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
+int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl);
+int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu,
+ struct v4l2_queryctrl *qctrl, const char **menu_items);
+#define V4L2_CTRL_MENU_IDS_END (0xffffffff)
+int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids);
+u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id);
+
+/* ------------------------------------------------------------------------- */
+
+/* Register/chip ident helper function */
-/* VIDIOC_INT_G_REGISTER and VIDIOC_INT_S_REGISTER */
-struct v4l2_register {
- u32 i2c_id; /* I2C driver ID of the I2C chip. 0 for the I2C adapter. */
- unsigned long reg;
- u32 val;
+struct i2c_client; /* forward reference */
+int v4l2_chip_match_i2c_client(struct i2c_client *c, const struct v4l2_dbg_match *match);
+int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_dbg_chip_ident *chip,
+ u32 ident, u32 revision);
+int v4l2_chip_match_host(const struct v4l2_dbg_match *match);
+
+/* ------------------------------------------------------------------------- */
+
+/* Helper function for I2C legacy drivers */
+
+struct i2c_driver;
+struct i2c_adapter;
+struct i2c_client;
+struct i2c_device_id;
+struct v4l2_device;
+struct v4l2_subdev;
+struct v4l2_subdev_ops;
+
+int v4l2_i2c_attach(struct i2c_adapter *adapter, int address, struct i2c_driver *driver,
+ const char *name,
+ int (*probe)(struct i2c_client *, const struct i2c_device_id *));
+
+/* Load an i2c module and return an initialized v4l2_subdev struct.
+ Only call request_module if module_name != NULL.
+ The client_type argument is the name of the chip that's on the adapter. */
+struct v4l2_subdev *v4l2_i2c_new_subdev(struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type, u8 addr);
+/* Probe and load an i2c module and return an initialized v4l2_subdev struct.
+ Only call request_module if module_name != NULL.
+ The client_type argument is the name of the chip that's on the adapter. */
+struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type,
+ const unsigned short *addrs);
+/* Initialize an 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);
+
+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);
+
+/* ------------------------------------------------------------------------- */
+
+/* Internal ioctls */
/* VIDIOC_INT_DECODE_VBI_LINE */
struct v4l2_decode_vbi_line {
u32 type; /* VBI service type (V4L2_SLICED_*). 0 if no service found */
};
-/* VIDIOC_INT_G_CHIP_IDENT: identifies the actual chip installed on the board */
-enum v4l2_chip_ident {
- /* general idents: reserved range 0-49 */
- V4L2_IDENT_UNKNOWN = 0,
-
- /* module saa7115: reserved range 100-149 */
- V4L2_IDENT_SAA7113 = 103,
- V4L2_IDENT_SAA7114 = 104,
- V4L2_IDENT_SAA7115 = 105,
-
- /* module saa7127: reserved range 150-199 */
- V4L2_IDENT_SAA7127 = 157,
- V4L2_IDENT_SAA7129 = 159,
-
- /* module cx25840: reserved range 200-249 */
- V4L2_IDENT_CX25840 = 240,
- V4L2_IDENT_CX25841 = 241,
- V4L2_IDENT_CX25842 = 242,
- V4L2_IDENT_CX25843 = 243,
+struct v4l2_priv_tun_config {
+ int tuner;
+ void *priv;
};
/* audio ioctls */
#define TUNER_SET_STANDBY _IOW('d', 91, int)
/* Sets tda9887 specific stuff, like port1, port2 and qss */
-#define TDA9887_SET_CONFIG _IOW('d', 92, int)
+#define TUNER_SET_CONFIG _IOW('d', 92, struct v4l2_priv_tun_config)
/* Switch the tuner to a specific tuner mode. Replacement of AUDC_SET_RADIO */
#define VIDIOC_INT_S_TUNER_MODE _IOW('d', 93, enum v4l2_tuner_type)
Replacement of TUNER_SET_STANDBY. */
#define VIDIOC_INT_S_STANDBY _IOW('d', 94, u32)
-/* only implemented if CONFIG_VIDEO_ADV_DEBUG is defined */
-#define VIDIOC_INT_S_REGISTER _IOR ('d', 100, struct v4l2_register)
-#define VIDIOC_INT_G_REGISTER _IOWR('d', 101, struct v4l2_register)
+/* 100, 101 used by VIDIOC_DBG_[SG]_REGISTER */
-/* Reset the I2C chip */
-#define VIDIOC_INT_RESET _IO ('d', 102)
+/* Generic reset command. The argument selects which subsystems to reset.
+ Passing 0 will always reset the whole chip. */
+#define VIDIOC_INT_RESET _IOW ('d', 102, u32)
/* Set the frequency (in Hz) of the audio clock output.
Used to slave an audio processor to the video decoder, ensuring that audio
whether CC data from the first or second field should be obtained). */
#define VIDIOC_INT_G_VBI_DATA _IOWR('d', 106, struct v4l2_sliced_vbi_data)
-/* Returns the chip identifier or V4L2_IDENT_UNKNOWN if no identification can
- be made. */
-#define VIDIOC_INT_G_CHIP_IDENT _IOR ('d', 107, enum v4l2_chip_ident)
-
/* Sets I2S speed in bps. This is used to provide a standard way to select I2S
clock used by driving digital audio streams at some board designs.
Usual values for the frequency are 1024000 and 2048000.
An extra flags field allows device specific configuration regarding
clock frequency dividers, etc. If not used, then set flags to 0.
If the frequency is not supported, then -EINVAL is returned. */
-#define VIDIOC_INT_S_CRYSTAL_FREQ _IOW ('d', 113, struct v4l2_crystal_freq)
+#define VIDIOC_INT_S_CRYSTAL_FREQ _IOW('d', 113, struct v4l2_crystal_freq)
+
+/* Initialize the sensor registors to some sort of reasonable
+ default values. */
+#define VIDIOC_INT_INIT _IOW('d', 114, u32)
+
+/* Set v4l2_std_id for video OUTPUT devices. This is ignored by
+ video input devices. */
+#define VIDIOC_INT_S_STD_OUTPUT _IOW('d', 115, v4l2_std_id)
+
+/* Get v4l2_std_id for video OUTPUT devices. This is ignored by
+ video input devices. */
+#define VIDIOC_INT_G_STD_OUTPUT _IOW('d', 116, v4l2_std_id)
+
+/* Set GPIO pins. Very simple right now, might need to be extended with
+ a v4l2_gpio struct if a direction is also needed. */
+#define VIDIOC_INT_S_GPIO _IOW('d', 117, u32)
#endif /* V4L2_COMMON_H_ */
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