#ifndef SOC_CAMERA_H
#define SOC_CAMERA_H
+#include <linux/bitops.h>
+#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/pm.h>
#include <linux/videodev2.h>
#include <media/videobuf-core.h>
+#include <media/videobuf2-core.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+
+struct file;
+struct soc_camera_link;
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 list_head list; /* list of all registered devices */
+ struct soc_camera_link *link;
+ struct device *pdev; /* Platform device */
+ struct device *parent; /* Camera host device */
+ struct device *control; /* E.g., the i2c client */
+ s32 user_width;
+ s32 user_height;
+ u32 bytesperline; /* for padding, zero if unused */
+ u32 sizeimage;
+ 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;
+ struct v4l2_ctrl_handler ctrl_handler;
+ 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 mutex video_lock; /* Protects device data */
-};
-
-struct soc_camera_file {
- struct soc_camera_device *icd;
- struct videobuf_queue vb_vidq;
+ struct file *streamer; /* stream owner */
+ union {
+ struct videobuf_queue vb_vidq;
+ struct vb2_queue vb2_vidq;
+ };
};
struct soc_camera_host {
+ struct v4l2_device v4l2_dev;
struct list_head list;
- struct device dev;
- unsigned char nr; /* Host number */
+ struct mutex host_lock; /* Protect during probing */
+ unsigned char nr; /* Host number */
void *priv;
const char *drv_name;
struct soc_camera_host_ops *ops;
struct module *owner;
int (*add)(struct soc_camera_device *);
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_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 *);
+ /*
+ * The difference to .set_crop() is, that .set_livecrop is not allowed
+ * to change the output sizes
+ */
+ int (*set_livecrop)(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 (*init_videobuf2)(struct vb2_queue *,
+ struct soc_camera_device *);
+ 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 (*set_bus_param)(struct soc_camera_device *);
+ int (*get_parm)(struct soc_camera_device *, struct v4l2_streamparm *);
+ int (*set_parm)(struct soc_camera_device *, struct v4l2_streamparm *);
+ int (*enum_fsizes)(struct soc_camera_device *, struct v4l2_frmsizeenum *);
unsigned int (*poll)(struct file *, poll_table *);
};
#define SOCAM_SENSOR_INVERT_VSYNC (1 << 3)
#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 */
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;
+
+ /* 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 has to provide methods to add a device
+ * to the system and to remove it
+ */
+ int (*add_device)(struct soc_camera_device *);
+ void (*del_device)(struct soc_camera_device *);
/* 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_host *to_soc_camera_host(
+ const struct device *dev)
{
- return container_of(dev, struct soc_camera_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_host *to_soc_camera_host(struct device *dev)
+static inline struct soc_camera_link *to_soc_camera_link(
+ const struct soc_camera_device *icd)
{
- return container_of(dev, struct soc_camera_host, dev);
+ return icd->link;
}
-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 device *to_soc_camera_control(
+ const struct soc_camera_device *icd)
+{
+ return icd->control;
+}
+
+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
* 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;
-};
-
-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_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_register *);
- int (*set_register)(struct soc_camera_device *, struct v4l2_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;
+ enum v4l2_mbus_pixelcode code;
+ const struct soc_mbus_pixelfmt *host_fmt;
};
#define SOCAM_SENSE_PCLK_CHANGED (1 << 0)
unsigned long pixel_clock;
};
-static inline struct v4l2_queryctrl const *soc_camera_find_qctrl(
- struct soc_camera_ops *ops, int id)
+#define SOCAM_DATAWIDTH(x) BIT((x) - 1)
+#define SOCAM_DATAWIDTH_4 SOCAM_DATAWIDTH(4)
+#define SOCAM_DATAWIDTH_8 SOCAM_DATAWIDTH(8)
+#define SOCAM_DATAWIDTH_9 SOCAM_DATAWIDTH(9)
+#define SOCAM_DATAWIDTH_10 SOCAM_DATAWIDTH(10)
+#define SOCAM_DATAWIDTH_15 SOCAM_DATAWIDTH(15)
+#define SOCAM_DATAWIDTH_16 SOCAM_DATAWIDTH(16)
+
+#define SOCAM_DATAWIDTH_MASK (SOCAM_DATAWIDTH_4 | SOCAM_DATAWIDTH_8 | \
+ SOCAM_DATAWIDTH_9 | SOCAM_DATAWIDTH_10 | \
+ SOCAM_DATAWIDTH_15 | SOCAM_DATAWIDTH_16)
+
+static inline void soc_camera_limit_side(int *start, int *length,
+ unsigned int start_min,
+ unsigned int length_min, unsigned int length_max)
{
- int i;
+ 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;
+}
- for (i = 0; i < ops->num_controls; i++)
- if (ops->controls[i].id == id)
- return &ops->controls[i];
+unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl,
+ unsigned long flags);
+unsigned long soc_camera_apply_board_flags(struct soc_camera_link *icl,
+ const struct v4l2_mbus_config *cfg);
- return NULL;
+/* 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(const struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd);
+ return icd ? icd->vdev : NULL;
}
-#define SOCAM_MASTER (1 << 0)
-#define SOCAM_SLAVE (1 << 1)
-#define SOCAM_HSYNC_ACTIVE_HIGH (1 << 2)
-#define SOCAM_HSYNC_ACTIVE_LOW (1 << 3)
-#define SOCAM_VSYNC_ACTIVE_HIGH (1 << 4)
-#define SOCAM_VSYNC_ACTIVE_LOW (1 << 5)
-#define SOCAM_DATAWIDTH_8 (1 << 6)
-#define SOCAM_DATAWIDTH_9 (1 << 7)
-#define SOCAM_DATAWIDTH_10 (1 << 8)
-#define SOCAM_DATAWIDTH_16 (1 << 9)
-#define SOCAM_PCLK_SAMPLE_RISING (1 << 10)
-#define SOCAM_PCLK_SAMPLE_FALLING (1 << 11)
-
-#define SOCAM_DATAWIDTH_MASK (SOCAM_DATAWIDTH_8 | SOCAM_DATAWIDTH_9 | \
- SOCAM_DATAWIDTH_10 | SOCAM_DATAWIDTH_16)
-
-static inline unsigned long soc_camera_bus_param_compatible(
- unsigned long camera_flags, unsigned long bus_flags)
+static inline struct soc_camera_link *soc_camera_i2c_to_link(const struct i2c_client *client)
{
- unsigned long common_flags, hsync, vsync, pclk;
+ return client->dev.platform_data;
+}
+
+static inline struct v4l2_subdev *soc_camera_vdev_to_subdev(const struct video_device *vdev)
+{
+ struct soc_camera_device *icd = dev_get_drvdata(vdev->parent);
+ return soc_camera_to_subdev(icd);
+}
- common_flags = camera_flags & bus_flags;
+static inline struct soc_camera_device *soc_camera_from_vb2q(const struct vb2_queue *vq)
+{
+ return container_of(vq, struct soc_camera_device, vb2_vidq);
+}
- 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);
+static inline struct soc_camera_device *soc_camera_from_vbq(const struct videobuf_queue *vq)
+{
+ return container_of(vq, struct soc_camera_device, vb_vidq);
+}
- return (!hsync || !vsync || !pclk) ? 0 : common_flags;
+static inline u32 soc_camera_grp_id(const struct soc_camera_device *icd)
+{
+ return (icd->iface << 8) | (icd->devnum + 1);
}
-extern unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl,
- unsigned long flags);
+void soc_camera_lock(struct vb2_queue *vq);
+void soc_camera_unlock(struct vb2_queue *vq);
#endif
projects / linux-flexiantxendom0-3.2.10.git / blobdiff