#include <media/v4l2-dev.h>
-/* v4l debugging and diagnostics */
-
-/* Debug bitmask flags to be used on V4L2 */
-#define V4L2_DEBUG_IOCTL 0x01
-#define V4L2_DEBUG_IOCTL_ARG 0x02
-
/* 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. */
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);
+/* ------------------------------------------------------------------------- */
-/* 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)
+/* 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)
-/* 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); \
+#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)
/* ------------------------------------------------------------------------- */
+/* Priority helper functions */
+
+struct v4l2_prio_state {
+ atomic_t prios[4];
+};
+void 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);
+void v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
+void 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);
+
+/* Note: ctrl_classes points to an array of u32 pointers. Each u32 array is a
+ 0-terminated array of control IDs. Each array must be sorted low to high
+ and belong to the same control class. The array of u32 pointers must also
+ be sorted, from low class IDs to high class IDs. */
u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id);
/* ------------------------------------------------------------------------- */
/* Register/chip ident helper function */
struct i2c_client; /* forward reference */
-int v4l2_chip_match_i2c_client(struct i2c_client *c, u32 id_type, u32 chip_id);
-int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_chip_ident *chip,
+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(u32 id_type, u32 chip_id);
+int v4l2_chip_match_host(const struct v4l2_dbg_match *match);
/* ------------------------------------------------------------------------- */
-/* Internal ioctls */
-
-/* VIDIOC_INT_DECODE_VBI_LINE */
-struct v4l2_decode_vbi_line {
- u32 is_second_field; /* Set to 0 for the first (odd) field,
- set to 1 for the second (even) field. */
- u8 *p; /* Pointer to the sliced VBI data from the decoder.
- On exit points to the start of the payload. */
- u32 line; /* Line number of the sliced VBI data (1-23) */
- u32 type; /* VBI service type (V4L2_SLICED_*). 0 if no service found */
-};
-
-struct v4l2_priv_tun_config {
- int tuner;
- void *priv;
+/* 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.
+ 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_cfg(struct v4l2_device *v4l2_dev,
+ struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type,
+ int irq, void *platform_data,
+ u8 addr, const unsigned short *probe_addrs);
+
+/* 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. */
+static inline struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
+ struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type,
+ u8 addr, const unsigned short *probe_addrs)
+{
+ return v4l2_i2c_new_subdev_cfg(v4l2_dev, adapter, module_name,
+ client_type, 0, NULL, addr, probe_addrs);
+}
+
+struct i2c_board_info;
+
+struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
+ struct i2c_adapter *adapter, const char *module_name,
+ struct i2c_board_info *info, const unsigned short *probe_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);
+/* 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);
-/* audio ioctls */
+/* ------------------------------------------------------------------------- */
-/* v4l device was opened in Radio mode, to be replaced by VIDIOC_INT_S_TUNER_MODE */
-#define AUDC_SET_RADIO _IO('d',88)
+/* SPI Helper functions */
+#if defined(CONFIG_SPI)
-/* tuner ioctls */
+#include <linux/spi/spi.h>
-/* Sets tuner type and its I2C addr */
-#define TUNER_SET_TYPE_ADDR _IOW('d', 90, int)
+struct spi_device;
-/* Puts tuner on powersaving state, disabling it, except for i2c. To be replaced
- by VIDIOC_INT_S_STANDBY. */
-#define TUNER_SET_STANDBY _IOW('d', 91, int)
+/* 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);
-/* Sets tda9887 specific stuff, like port1, port2 and qss */
-#define TUNER_SET_CONFIG _IOW('d', 92, struct v4l2_priv_tun_config)
+/* Initialize an 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
-/* 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)
+/* ------------------------------------------------------------------------- */
-/* Generic standby command. Passing -1 (all bits set to 1) will put the whole
- chip into standby mode, value 0 will make the chip fully active. Specific
- bits can be used by certain chips to enable/disable specific subsystems.
- Replacement of TUNER_SET_STANDBY. */
-#define VIDIOC_INT_S_STANDBY _IOW('d', 94, u32)
+/* 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. */
-/* 100, 101 used by VIDIOC_DBG_[SG]_REGISTER */
+/* s_config */
+struct v4l2_priv_tun_config {
+ int tuner;
+ void *priv;
+};
+#define TUNER_SET_CONFIG _IOW('d', 92, struct v4l2_priv_tun_config)
-/* 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
- and video remain synchronized.
- Usual values for the frequency are 48000, 44100 or 32000 Hz.
- If the frequency is not supported, then -EINVAL is returned. */
-#define VIDIOC_INT_AUDIO_CLOCK_FREQ _IOW ('d', 103, u32)
-
-/* Video decoders that support sliced VBI need to implement this ioctl.
- Field p of the v4l2_sliced_vbi_line struct is set to the start of the VBI
- data that was generated by the decoder. The driver then parses the sliced
- VBI data and sets the other fields in the struct accordingly. The pointer p
- is updated to point to the start of the payload which can be copied
- verbatim into the data field of the v4l2_sliced_vbi_data struct. If no
- valid VBI data was found, then the type field is set to 0 on return. */
-#define VIDIOC_INT_DECODE_VBI_LINE _IOWR('d', 104, struct v4l2_decode_vbi_line)
-
-/* Used to generate VBI signals on a video signal. v4l2_sliced_vbi_data is
- filled with the data packets that should be output. Note that if you set
- the line field to 0, then that VBI signal is disabled. If no
- valid VBI data was found, then the type field is set to 0 on return. */
-#define VIDIOC_INT_S_VBI_DATA _IOW ('d', 105, struct v4l2_sliced_vbi_data)
-
-/* Used to obtain the sliced VBI packet from a readback register. Not all
- video decoders support this. If no data is available because the readback
- register contains invalid or erroneous data -EIO is returned. Note that
- you must fill in the 'id' member and the 'field' member (to determine
- 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)
-
-/* 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.
- If the frequency is not supported, then -EINVAL is returned. */
-#define VIDIOC_INT_I2S_CLOCK_FREQ _IOW ('d', 108, u32)
-
-/* Routing definition, device dependent. It specifies which inputs (if any)
- should be routed to which outputs (if any). */
struct v4l2_routing {
u32 input;
u32 output;
};
-/* These internal commands should be used to define the inputs and outputs
- of an audio/video chip. They will replace the v4l2 API commands
- VIDIOC_S/G_INPUT, VIDIOC_S/G_OUTPUT, VIDIOC_S/G_AUDIO and VIDIOC_S/G_AUDOUT
- that are meant to be used by the user.
- The internal commands should be used to switch inputs/outputs
- because only the driver knows how to map a 'Television' input to the precise
- input/output routing of an A/D converter, or a DSP, or a video digitizer.
- These four commands should only be sent directly to an i2c device, they
- should not be broadcast as the routing is very device specific. */
-#define VIDIOC_INT_S_AUDIO_ROUTING _IOW ('d', 109, struct v4l2_routing)
-#define VIDIOC_INT_G_AUDIO_ROUTING _IOR ('d', 110, struct v4l2_routing)
-#define VIDIOC_INT_S_VIDEO_ROUTING _IOW ('d', 111, struct v4l2_routing)
-#define VIDIOC_INT_G_VIDEO_ROUTING _IOR ('d', 112, struct v4l2_routing)
-
-struct v4l2_crystal_freq {
- u32 freq; /* frequency in Hz of the crystal */
- u32 flags; /* device specific flags */
-};
-
-/* Sets the frequency of the crystal used to generate the clocks.
- 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)
-
-/* 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)
+/* 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);
+int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info);
#endif /* V4L2_COMMON_H_ */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff