diff options
Diffstat (limited to 'include/media/soc_camera.h')
| -rw-r--r-- | include/media/soc_camera.h | 170 |
1 files changed, 99 insertions, 71 deletions
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index 23ecead35e7a..9386db829fb7 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -12,55 +12,44 @@ #ifndef SOC_CAMERA_H #define SOC_CAMERA_H +#include <linux/device.h> #include <linux/mutex.h> #include <linux/pm.h> #include <linux/videodev2.h> #include <media/videobuf-core.h> +#include <media/v4l2-device.h> + +extern struct bus_type soc_camera_bus_type; + +struct file; struct soc_camera_device { struct list_head list; struct device dev; - struct device *control; - unsigned short width; /* Current window */ - unsigned short height; /* sizes */ - unsigned short x_min; /* Camera capabilities */ - unsigned short y_min; - unsigned short x_current; /* Current window location */ - unsigned short y_current; - unsigned short width_min; - unsigned short width_max; - unsigned short height_min; - unsigned short height_max; - unsigned short y_skip_top; /* Lines to skip at the top */ - unsigned short gain; - unsigned short exposure; + struct device *pdev; /* Platform device */ + s32 user_width; + s32 user_height; + enum v4l2_colorspace colorspace; unsigned char iface; /* Host number */ unsigned char devnum; /* Device number per host */ - unsigned char buswidth; /* See comment in .c */ struct soc_camera_sense *sense; /* See comment in struct definition */ struct soc_camera_ops *ops; struct video_device *vdev; - const struct soc_camera_data_format *current_fmt; - const struct soc_camera_data_format *formats; - int num_formats; + const struct soc_camera_format_xlate *current_fmt; struct soc_camera_format_xlate *user_formats; int num_user_formats; enum v4l2_field field; /* Preserve field over close() */ - struct module *owner; void *host_priv; /* Per-device host private data */ /* soc_camera.c private count. Only accessed with .video_lock held */ int use_count; struct mutex video_lock; /* Protects device data */ -}; - -struct soc_camera_file { - struct soc_camera_device *icd; + struct file *streamer; /* stream owner */ struct videobuf_queue vb_vidq; }; struct soc_camera_host { + struct v4l2_device v4l2_dev; struct list_head list; - struct device *dev; unsigned char nr; /* Host number */ void *priv; const char *drv_name; @@ -73,17 +62,32 @@ struct soc_camera_host_ops { void (*remove)(struct soc_camera_device *); int (*suspend)(struct soc_camera_device *, pm_message_t); int (*resume)(struct soc_camera_device *); - int (*get_formats)(struct soc_camera_device *, int, + /* + * .get_formats() is called for each client device format, but + * .put_formats() is only called once. Further, if any of the calls to + * .get_formats() fail, .put_formats() will not be called at all, the + * failing .get_formats() must then clean up internally. + */ + int (*get_formats)(struct soc_camera_device *, unsigned int, struct soc_camera_format_xlate *); - int (*set_crop)(struct soc_camera_device *, struct v4l2_rect *); + void (*put_formats)(struct soc_camera_device *); + int (*cropcap)(struct soc_camera_device *, struct v4l2_cropcap *); + int (*get_crop)(struct soc_camera_device *, struct v4l2_crop *); + int (*set_crop)(struct soc_camera_device *, struct v4l2_crop *); int (*set_fmt)(struct soc_camera_device *, struct v4l2_format *); int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *); void (*init_videobuf)(struct videobuf_queue *, struct soc_camera_device *); - int (*reqbufs)(struct soc_camera_file *, struct v4l2_requestbuffers *); + int (*reqbufs)(struct soc_camera_device *, struct v4l2_requestbuffers *); int (*querycap)(struct soc_camera_host *, struct v4l2_capability *); int (*set_bus_param)(struct soc_camera_device *, __u32); + int (*get_ctrl)(struct soc_camera_device *, struct v4l2_control *); + int (*set_ctrl)(struct soc_camera_device *, struct v4l2_control *); + int (*get_parm)(struct soc_camera_device *, struct v4l2_streamparm *); + int (*set_parm)(struct soc_camera_device *, struct v4l2_streamparm *); unsigned int (*poll)(struct file *, poll_table *); + const struct v4l2_queryctrl *controls; + int num_controls; }; #define SOCAM_SENSOR_INVERT_PCLK (1 << 0) @@ -93,6 +97,7 @@ struct soc_camera_host_ops { #define SOCAM_SENSOR_INVERT_DATA (1 << 4) struct i2c_board_info; +struct regulator_bulk_data; struct soc_camera_link { /* Camera bus id, used to match a camera and a bus */ @@ -102,6 +107,18 @@ struct soc_camera_link { int i2c_adapter_id; struct i2c_board_info *board_info; const char *module_name; + void *priv; + + /* Optional regulators that have to be managed on power on/off events */ + struct regulator_bulk_data *regulators; + int num_regulators; + + /* + * For non-I2C devices platform platform has to provide methods to + * add a device to the system and to remove + */ + int (*add_device)(struct soc_camera_link *, struct device *); + void (*del_device)(struct soc_camera_link *); /* Optional callbacks to power on or off and reset the sensor */ int (*power)(struct device *, int); int (*reset)(struct device *); @@ -115,41 +132,49 @@ struct soc_camera_link { void (*free_bus)(struct soc_camera_link *); }; -static inline struct soc_camera_device *to_soc_camera_dev(struct device *dev) +static inline struct soc_camera_device *to_soc_camera_dev( + const struct device *dev) { return container_of(dev, struct soc_camera_device, dev); } -static inline struct soc_camera_host *to_soc_camera_host(struct device *dev) +static inline struct soc_camera_host *to_soc_camera_host( + const struct device *dev) +{ + struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); + + return container_of(v4l2_dev, struct soc_camera_host, v4l2_dev); +} + +static inline struct soc_camera_link *to_soc_camera_link( + const struct soc_camera_device *icd) +{ + return icd->dev.platform_data; +} + +static inline struct device *to_soc_camera_control( + const struct soc_camera_device *icd) { - return dev_get_drvdata(dev); + return dev_get_drvdata(&icd->dev); } -extern int soc_camera_host_register(struct soc_camera_host *ici); -extern void soc_camera_host_unregister(struct soc_camera_host *ici); -extern int soc_camera_device_register(struct soc_camera_device *icd); -extern void soc_camera_device_unregister(struct soc_camera_device *icd); +static inline struct v4l2_subdev *soc_camera_to_subdev( + const struct soc_camera_device *icd) +{ + struct device *control = to_soc_camera_control(icd); + return dev_get_drvdata(control); +} -extern int soc_camera_video_start(struct soc_camera_device *icd); -extern void soc_camera_video_stop(struct soc_camera_device *icd); +int soc_camera_host_register(struct soc_camera_host *ici); +void soc_camera_host_unregister(struct soc_camera_host *ici); -extern const struct soc_camera_data_format *soc_camera_format_by_fourcc( - struct soc_camera_device *icd, unsigned int fourcc); -extern const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc( +const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc( struct soc_camera_device *icd, unsigned int fourcc); -struct soc_camera_data_format { - const char *name; - unsigned int depth; - __u32 fourcc; - enum v4l2_colorspace colorspace; -}; - /** * struct soc_camera_format_xlate - match between host and sensor formats - * @cam_fmt: sensor format provided by the sensor - * @host_fmt: host format after host translation from cam_fmt - * @buswidth: bus width for this format + * @code: code of a sensor provided format + * @host_fmt: host format after host translation from code * * Host and sensor translation structure. Used in table of host and sensor * formats matchings in soc_camera_device. A host can override the generic list @@ -157,36 +182,16 @@ struct soc_camera_data_format { * format setup. */ struct soc_camera_format_xlate { - const struct soc_camera_data_format *cam_fmt; - const struct soc_camera_data_format *host_fmt; - unsigned char buswidth; + enum v4l2_mbus_pixelcode code; + const struct soc_mbus_pixelfmt *host_fmt; }; struct soc_camera_ops { - struct module *owner; - int (*probe)(struct soc_camera_device *); - void (*remove)(struct soc_camera_device *); int (*suspend)(struct soc_camera_device *, pm_message_t state); int (*resume)(struct soc_camera_device *); - int (*init)(struct soc_camera_device *); - int (*release)(struct soc_camera_device *); - int (*start_capture)(struct soc_camera_device *); - int (*stop_capture)(struct soc_camera_device *); - int (*set_crop)(struct soc_camera_device *, struct v4l2_rect *); - int (*set_fmt)(struct soc_camera_device *, struct v4l2_format *); - int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *); unsigned long (*query_bus_param)(struct soc_camera_device *); int (*set_bus_param)(struct soc_camera_device *, unsigned long); - int (*get_chip_id)(struct soc_camera_device *, - struct v4l2_dbg_chip_ident *); - int (*set_std)(struct soc_camera_device *, v4l2_std_id *); int (*enum_input)(struct soc_camera_device *, struct v4l2_input *); -#ifdef CONFIG_VIDEO_ADV_DEBUG - int (*get_register)(struct soc_camera_device *, struct v4l2_dbg_register *); - int (*set_register)(struct soc_camera_device *, struct v4l2_dbg_register *); -#endif - int (*get_control)(struct soc_camera_device *, struct v4l2_control *); - int (*set_control)(struct soc_camera_device *, struct v4l2_control *); const struct v4l2_queryctrl *controls; int num_controls; }; @@ -268,7 +273,30 @@ static inline unsigned long soc_camera_bus_param_compatible( common_flags; } +static inline void soc_camera_limit_side(int *start, int *length, + unsigned int start_min, + unsigned int length_min, unsigned int length_max) +{ + if (*length < length_min) + *length = length_min; + else if (*length > length_max) + *length = length_max; + + if (*start < start_min) + *start = start_min; + else if (*start > start_min + length_max - *length) + *start = start_min + length_max - *length; +} + extern unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl, unsigned long flags); +/* This is only temporary here - until v4l2-subdev begins to link to video_device */ +#include <linux/i2c.h> +static inline struct video_device *soc_camera_i2c_to_vdev(struct i2c_client *client) +{ + struct soc_camera_device *icd = client->dev.platform_data; + return icd->vdev; +} + #endif |