#include <linux/pm.h>
#include <linux/videodev2.h>
#include <media/videobuf-core.h>
+#include <media/v4l2-device.h>
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;
- struct module *owner;
+ enum v4l2_field field; /* Preserve field over close() */
void *host_priv; /* Per-device host private data */
/* soc_camera.c private count. Only accessed with .video_lock held */
int use_count;
};
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;
void (*remove)(struct soc_camera_device *);
int (*suspend)(struct soc_camera_device *, pm_message_t);
int (*resume)(struct soc_camera_device *);
+ /*
+ * .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 *, int,
struct soc_camera_format_xlate *);
- int (*set_fmt)(struct soc_camera_device *, __u32, 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 (*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)
#define SOCAM_SENSOR_INVERT_VSYNC (1 << 3)
#define SOCAM_SENSOR_INVERT_DATA (1 << 4)
+struct i2c_board_info;
+
struct soc_camera_link {
/* Camera bus id, used to match a camera and a bus */
int bus_id;
- /* GPIO number to switch between 8 and 10 bit modes */
- unsigned int gpio;
/* Per camera SOCAM_SENSOR_* bus flags */
unsigned long flags;
+ int i2c_adapter_id;
+ struct i2c_board_info *board_info;
+ const char *module_name;
+ void *priv;
+
+ /*
+ * 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 *);
+ /*
+ * some platforms may support different data widths than the sensors
+ * native ones due to different data line routing. Let the board code
+ * overwrite the width flags.
+ */
+ int (*set_bus_param)(struct soc_camera_link *, unsigned long flags);
+ unsigned long (*query_bus_param)(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)
{
- return container_of(dev, struct soc_camera_host, dev);
+ struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
+
+ return container_of(v4l2_dev, struct soc_camera_host, v4l2_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 soc_camera_link *to_soc_camera_link(
+ const struct soc_camera_device *icd)
+{
+ return icd->dev.platform_data;
+}
-extern int soc_camera_video_start(struct soc_camera_device *icd);
-extern void soc_camera_video_stop(struct soc_camera_device *icd);
+static inline struct device *to_soc_camera_control(
+ const struct soc_camera_device *icd)
+{
+ return dev_get_drvdata(&icd->dev);
+}
-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(
- struct soc_camera_device *icd, unsigned int fourcc);
+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);
+}
-struct soc_camera_data_format {
- const char *name;
- unsigned int depth;
- __u32 fourcc;
- enum v4l2_colorspace colorspace;
-};
+int soc_camera_host_register(struct soc_camera_host *ici);
+void soc_camera_host_unregister(struct soc_camera_host *ici);
+
+const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc(
+ struct soc_camera_device *icd, unsigned int fourcc);
/**
* 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
* 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_fmt)(struct soc_camera_device *, __u32, struct v4l2_rect *);
- 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;
};
static inline unsigned long soc_camera_bus_param_compatible(
unsigned long camera_flags, unsigned long bus_flags)
{
- unsigned long common_flags, hsync, vsync, pclk;
+ unsigned long common_flags, hsync, vsync, pclk, data, buswidth, mode;
common_flags = camera_flags & bus_flags;
hsync = common_flags & (SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW);
vsync = common_flags & (SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW);
pclk = common_flags & (SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING);
+ data = common_flags & (SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATA_ACTIVE_LOW);
+ mode = common_flags & (SOCAM_MASTER | SOCAM_SLAVE);
+ buswidth = common_flags & SOCAM_DATAWIDTH_MASK;
+
+ return (!hsync || !vsync || !pclk || !data || !mode || !buswidth) ? 0 :
+ common_flags;
+}
+
+static inline void soc_camera_limit_side(unsigned int *start,
+ unsigned 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;
- return (!hsync || !vsync || !pclk) ? 0 : common_flags;
+ 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,
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