diff options
Diffstat (limited to 'include/media/v4l2-common.h')
| -rw-r--r-- | include/media/v4l2-common.h | 87 |
1 files changed, 66 insertions, 21 deletions
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index c48c24e4d0fa..2d65b35cdab2 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -85,25 +85,25 @@ struct v4l2_prio_state { atomic_t prios[4]; }; -int v4l2_prio_init(struct v4l2_prio_state *global); +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); -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); +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); +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 * const *menu_items); const char *v4l2_ctrl_get_name(u32 id); -const char **v4l2_ctrl_get_menu(u32 id); +const char * const *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_menu(struct v4l2_querymenu *qmenu, - struct v4l2_queryctrl *qctrl, const char **menu_items); + struct v4l2_queryctrl *qctrl, const char * const *menu_items); #define V4L2_CTRL_MENU_IDS_END (0xffffffff) int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids); @@ -137,22 +137,28 @@ 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(struct v4l2_device *v4l2_dev, - 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. +struct v4l2_subdev *v4l2_i2c_new_subdev_cfg(struct v4l2_device *v4l2_dev, + struct i2c_adapter *adapter, 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. The client_type argument is the name of the chip that's on the adapter. */ -struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct v4l2_device *v4l2_dev, - struct i2c_adapter *adapter, - const char *module_name, const char *client_type, - const unsigned short *addrs); -/* Like v4l2_i2c_new_probed_subdev, except probe for a single address. */ -struct v4l2_subdev *v4l2_i2c_new_probed_subdev_addr(struct v4l2_device *v4l2_dev, - struct i2c_adapter *adapter, - const char *module_name, const char *client_type, u8 addr); +static inline 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) +{ + return v4l2_i2c_new_subdev_cfg(v4l2_dev, adapter, 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, 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); @@ -174,6 +180,25 @@ 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 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 + +/* ------------------------------------------------------------------------- */ + /* 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 @@ -193,4 +218,24 @@ struct v4l2_routing { 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); +int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info); + +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); + #endif /* V4L2_COMMON_H_ */ |