#ifndef SOC_CAMERA_H
#define SOC_CAMERA_H
+#include <linux/mutex.h>
+#include <linux/pm.h>
#include <linux/videodev2.h>
#include <media/videobuf-core.h>
-#include <linux/pm.h>
struct soc_camera_device {
struct list_head list;
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;
struct soc_camera_format_xlate *user_formats;
int num_user_formats;
struct module *owner;
- void *host_priv; /* per-device host private data */
- /* soc_camera.c private count. Only accessed with video_lock held */
+ 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 {
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 *);
+ 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_register *);
- int (*set_register)(struct soc_camera_device *, struct v4l2_register *);
+ 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 *);
int num_controls;
};
+#define SOCAM_SENSE_PCLK_CHANGED (1 << 0)
+
+/**
+ * This struct can be attached to struct soc_camera_device by the host driver
+ * to request sense from the camera, for example, when calling .set_fmt(). The
+ * host then can check which flags are set and verify respective values if any.
+ * For example, if SOCAM_SENSE_PCLK_CHANGED is set, it means, pixclock has
+ * changed during this operation. After completion the host should detach sense.
+ *
+ * @flags ored SOCAM_SENSE_* flags
+ * @master_clock if the host wants to be informed about pixel-clock
+ * change, it better set master_clock.
+ * @pixel_clock_max maximum pixel clock frequency supported by the host,
+ * camera is not allowed to exceed this.
+ * @pixel_clock if the camera driver changed pixel clock during this
+ * operation, it sets SOCAM_SENSE_PCLK_CHANGED, uses
+ * master_clock to calculate the new pixel-clock and
+ * sets this field.
+ */
+struct soc_camera_sense {
+ unsigned long flags;
+ unsigned long master_clock;
+ unsigned long pixel_clock_max;
+ unsigned long pixel_clock;
+};
+
static inline struct v4l2_queryctrl const *soc_camera_find_qctrl(
struct soc_camera_ops *ops, int id)
{
#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_4 (1 << 6)
+#define SOCAM_DATAWIDTH_8 (1 << 7)
+#define SOCAM_DATAWIDTH_9 (1 << 8)
+#define SOCAM_DATAWIDTH_10 (1 << 9)
+#define SOCAM_DATAWIDTH_15 (1 << 10)
+#define SOCAM_DATAWIDTH_16 (1 << 11)
+#define SOCAM_PCLK_SAMPLE_RISING (1 << 12)
+#define SOCAM_PCLK_SAMPLE_FALLING (1 << 13)
+#define SOCAM_DATA_ACTIVE_HIGH (1 << 14)
+#define SOCAM_DATA_ACTIVE_LOW (1 << 15)
-#define SOCAM_DATAWIDTH_MASK (SOCAM_DATAWIDTH_8 | SOCAM_DATAWIDTH_9 | \
- SOCAM_DATAWIDTH_10 | 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 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) ? 0 : common_flags;
+ return (!hsync || !vsync || !pclk || !data || !mode || !buswidth) ? 0 :
+ common_flags;
}
extern unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl,
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