merge: http://linuxtv.org/hg/~pinchartl/uvcvideo/

From: Mauro Carvalho Chehab <mchehab@redhat.com>

Priority: normal

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 58 insertions, 11 deletions

diff --git a/linux/include/media/soc_camera.h b/linux/include/media/soc_camera.h
index da57ffdae..425b6a98c 100644
--- a/linux/include/media/soc_camera.h
+++ b/linux/include/media/soc_camera.h
@@ -12,9 +12,10 @@
 #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;
@@ -36,6 +37,7 @@ struct soc_camera_device {
 	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;
@@ -44,9 +46,10 @@ struct soc_camera_device {
 	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 {
@@ -81,11 +84,19 @@ struct soc_camera_host_ops {
 	unsigned int (*poll)(struct file *, poll_table *);
 };
 
+#define SOCAM_SENSOR_INVERT_PCLK	(1 << 0)
+#define SOCAM_SENSOR_INVERT_MCLK	(1 << 1)
+#define SOCAM_SENSOR_INVERT_HSYNC	(1 << 2)
+#define SOCAM_SENSOR_INVERT_VSYNC	(1 << 3)
+#define SOCAM_SENSOR_INVERT_DATA	(1 << 4)
+
 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;
 	/* Optional callbacks to power on or off and reset the sensor */
 	int (*power)(struct device *, int);
 	int (*reset)(struct device *);
@@ -154,6 +165,8 @@ struct soc_camera_ops {
 	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 *);
@@ -164,6 +177,32 @@ struct soc_camera_ops {
 	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)
 {
@@ -182,15 +221,20 @@ static inline struct v4l2_queryctrl const *soc_camera_find_qctrl(
 #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)
@@ -206,4 +250,7 @@ static inline unsigned long soc_camera_bus_param_compatible(
 	return (!hsync || !vsync || !pclk) ? 0 : common_flags;
 }
 
+extern unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl,
+						   unsigned long flags);
+
 #endif