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-rw-r--r--include/media/i2c-addr.h2
-rw-r--r--include/media/ir-common.h2
-rw-r--r--include/media/ov772x.h21
-rw-r--r--include/media/saa7146_vv.h7
-rw-r--r--include/media/soc_camera.h117
-rw-r--r--include/media/tvp514x.h118
-rw-r--r--include/media/tw9910.h39
-rw-r--r--include/media/v4l2-chip-ident.h14
-rw-r--r--include/media/v4l2-common.h47
-rw-r--r--include/media/v4l2-dev.h66
-rw-r--r--include/media/v4l2-device.h109
-rw-r--r--include/media/v4l2-int-device.h8
-rw-r--r--include/media/v4l2-ioctl.h41
-rw-r--r--include/media/v4l2-subdev.h189
14 files changed, 706 insertions, 74 deletions
diff --git a/include/media/i2c-addr.h b/include/media/i2c-addr.h
index e7ff44a35ca..5d0f56054d2 100644
--- a/include/media/i2c-addr.h
+++ b/include/media/i2c-addr.h
@@ -12,8 +12,6 @@
/* bttv address list */
#define I2C_ADDR_TSA5522 0xc2
#define I2C_ADDR_TDA7432 0x8a
-#define I2C_ADDR_BT832_ALT1 0x88
-#define I2C_ADDR_BT832_ALT2 0x8a // alternate setting
#define I2C_ADDR_TDA8425 0x82
#define I2C_ADDR_TDA9840 0x84
#define I2C_ADDR_TDA9850 0xb6 /* also used by 9855,9873 */
diff --git a/include/media/ir-common.h b/include/media/ir-common.h
index 38f2d93c395..5bf2ea00678 100644
--- a/include/media/ir-common.h
+++ b/include/media/ir-common.h
@@ -157,6 +157,8 @@ extern IR_KEYTAB_TYPE ir_codes_avermedia_a16d[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_encore_enltv_fm53[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_real_audio_220_32_keys[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_msi_tvanywhere_plus[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_ati_tv_wonder_hd_600[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_kworld_plus_tv_analog[IR_KEYTAB_SIZE];
#endif
/*
diff --git a/include/media/ov772x.h b/include/media/ov772x.h
new file mode 100644
index 00000000000..e391d55edb9
--- /dev/null
+++ b/include/media/ov772x.h
@@ -0,0 +1,21 @@
+/* ov772x Camera
+ *
+ * Copyright (C) 2008 Renesas Solutions Corp.
+ * Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __OV772X_H__
+#define __OV772X_H__
+
+#include <media/soc_camera.h>
+
+struct ov772x_camera_info {
+ unsigned long buswidth;
+ struct soc_camera_link link;
+};
+
+#endif /* __OV772X_H__ */
diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h
index 1d104096619..c8d0b23fde2 100644
--- a/include/media/saa7146_vv.h
+++ b/include/media/saa7146_vv.h
@@ -177,9 +177,9 @@ struct saa7146_ext_vv
int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
struct saa7146_extension_ioctls *ioctls;
- int (*ioctl)(struct saa7146_fh*, unsigned int cmd, void *arg);
+ long (*ioctl)(struct saa7146_fh *, unsigned int cmd, void *arg);
- struct file_operations vbi_fops;
+ struct v4l2_file_operations vbi_fops;
};
struct saa7146_use_ops {
@@ -216,8 +216,7 @@ void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
extern struct saa7146_use_ops saa7146_video_uops;
int saa7146_start_preview(struct saa7146_fh *fh);
int saa7146_stop_preview(struct saa7146_fh *fh);
-int saa7146_video_do_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg);
+long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
/* from saa7146_vbi.c */
extern struct saa7146_use_ops saa7146_vbi_uops;
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index c5de7bb19fd..7440d925066 100644
--- a/include/media/soc_camera.h
+++ b/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;
@@ -36,14 +37,19 @@ 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;
const struct soc_camera_data_format *formats;
int num_formats;
+ struct soc_camera_format_xlate *user_formats;
+ int num_user_formats;
struct module *owner;
- /* 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 {
@@ -56,7 +62,7 @@ struct soc_camera_host {
struct device dev;
unsigned char nr; /* Host number */
void *priv;
- char *drv_name;
+ const char *drv_name;
struct soc_camera_host_ops *ops;
};
@@ -64,25 +70,33 @@ struct soc_camera_host_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 state);
+ int (*suspend)(struct soc_camera_device *, pm_message_t);
int (*resume)(struct soc_camera_device *);
- int (*set_fmt_cap)(struct soc_camera_device *, __u32,
- struct v4l2_rect *);
- int (*try_fmt_cap)(struct soc_camera_device *, struct v4l2_format *);
+ int (*get_formats)(struct soc_camera_device *, int,
+ struct soc_camera_format_xlate *);
+ int (*set_fmt)(struct soc_camera_device *, __u32, struct v4l2_rect *);
+ 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 (*try_bus_param)(struct soc_camera_device *, __u32);
int (*set_bus_param)(struct soc_camera_device *, __u32);
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 *);
@@ -106,13 +120,35 @@ extern void soc_camera_device_unregister(struct soc_camera_device *icd);
extern int soc_camera_video_start(struct soc_camera_device *icd);
extern void soc_camera_video_stop(struct soc_camera_device *icd);
+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);
+
struct soc_camera_data_format {
- char *name;
+ 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
+ *
+ * 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
+ * generation by implementing get_formats(), and use it for format checks and
+ * 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 *);
@@ -123,16 +159,17 @@ struct soc_camera_ops {
int (*release)(struct soc_camera_device *);
int (*start_capture)(struct soc_camera_device *);
int (*stop_capture)(struct soc_camera_device *);
- int (*set_fmt_cap)(struct soc_camera_device *, __u32,
- struct v4l2_rect *);
- int (*try_fmt_cap)(struct soc_camera_device *, struct v4l2_format *);
+ 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 *);
+ 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 *);
@@ -140,6 +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)
{
@@ -158,15 +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)
@@ -182,4 +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
diff --git a/include/media/tvp514x.h b/include/media/tvp514x.h
new file mode 100644
index 00000000000..5e7ee968c6d
--- /dev/null
+++ b/include/media/tvp514x.h
@@ -0,0 +1,118 @@
+/*
+ * drivers/media/video/tvp514x.h
+ *
+ * Copyright (C) 2008 Texas Instruments Inc
+ * Author: Vaibhav Hiremath <hvaibhav@ti.com>
+ *
+ * Contributors:
+ * Sivaraj R <sivaraj@ti.com>
+ * Brijesh R Jadav <brijesh.j@ti.com>
+ * Hardik Shah <hardik.shah@ti.com>
+ * Manjunath Hadli <mrh@ti.com>
+ * Karicheri Muralidharan <m-karicheri2@ti.com>
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef _TVP514X_H
+#define _TVP514X_H
+
+/*
+ * Other macros
+ */
+#define TVP514X_MODULE_NAME "tvp514x"
+
+#define TVP514X_XCLK_BT656 (27000000)
+
+/* Number of pixels and number of lines per frame for different standards */
+#define NTSC_NUM_ACTIVE_PIXELS (720)
+#define NTSC_NUM_ACTIVE_LINES (480)
+#define PAL_NUM_ACTIVE_PIXELS (720)
+#define PAL_NUM_ACTIVE_LINES (576)
+
+/**
+ * enum tvp514x_input - enum for different decoder input pin
+ * configuration.
+ */
+enum tvp514x_input {
+ /*
+ * CVBS input selection
+ */
+ INPUT_CVBS_VI1A = 0x0,
+ INPUT_CVBS_VI1B,
+ INPUT_CVBS_VI1C,
+ INPUT_CVBS_VI2A = 0x04,
+ INPUT_CVBS_VI2B,
+ INPUT_CVBS_VI2C,
+ INPUT_CVBS_VI3A = 0x08,
+ INPUT_CVBS_VI3B,
+ INPUT_CVBS_VI3C,
+ INPUT_CVBS_VI4A = 0x0C,
+ /*
+ * S-Video input selection
+ */
+ INPUT_SVIDEO_VI2A_VI1A = 0x44,
+ INPUT_SVIDEO_VI2B_VI1B,
+ INPUT_SVIDEO_VI2C_VI1C,
+ INPUT_SVIDEO_VI2A_VI3A = 0x54,
+ INPUT_SVIDEO_VI2B_VI3B,
+ INPUT_SVIDEO_VI2C_VI3C,
+ INPUT_SVIDEO_VI4A_VI1A = 0x4C,
+ INPUT_SVIDEO_VI4A_VI1B,
+ INPUT_SVIDEO_VI4A_VI1C,
+ INPUT_SVIDEO_VI4A_VI3A = 0x5C,
+ INPUT_SVIDEO_VI4A_VI3B,
+ INPUT_SVIDEO_VI4A_VI3C,
+
+ /* Need to add entries for
+ * RGB, YPbPr and SCART.
+ */
+ INPUT_INVALID
+};
+
+/**
+ * enum tvp514x_output - enum for output format
+ * supported.
+ *
+ */
+enum tvp514x_output {
+ OUTPUT_10BIT_422_EMBEDDED_SYNC = 0,
+ OUTPUT_20BIT_422_SEPERATE_SYNC,
+ OUTPUT_10BIT_422_SEPERATE_SYNC = 3,
+ OUTPUT_INVALID
+};
+
+/**
+ * struct tvp514x_platform_data - Platform data values and access functions.
+ * @power_set: Power state access function, zero is off, non-zero is on.
+ * @ifparm: Interface parameters access function.
+ * @priv_data_set: Device private data (pointer) access function.
+ * @clk_polarity: Clock polarity of the current interface.
+ * @ hs_polarity: HSYNC Polarity configuration for current interface.
+ * @ vs_polarity: VSYNC Polarity configuration for current interface.
+ */
+struct tvp514x_platform_data {
+ char *master;
+ int (*power_set) (enum v4l2_power on);
+ int (*ifparm) (struct v4l2_ifparm *p);
+ int (*priv_data_set) (void *);
+ /* Interface control params */
+ bool clk_polarity;
+ bool hs_polarity;
+ bool vs_polarity;
+};
+
+
+#endif /* ifndef _TVP514X_H */
diff --git a/include/media/tw9910.h b/include/media/tw9910.h
new file mode 100644
index 00000000000..73231e7880d
--- /dev/null
+++ b/include/media/tw9910.h
@@ -0,0 +1,39 @@
+/*
+ * tw9910 Driver header
+ *
+ * Copyright (C) 2008 Renesas Solutions Corp.
+ * Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * Based on ov772x.h
+ *
+ * Copyright (C) Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __TW9910_H__
+#define __TW9910_H__
+
+#include <media/soc_camera.h>
+
+enum tw9910_mpout_pin {
+ TW9910_MPO_VLOSS,
+ TW9910_MPO_HLOCK,
+ TW9910_MPO_SLOCK,
+ TW9910_MPO_VLOCK,
+ TW9910_MPO_MONO,
+ TW9910_MPO_DET50,
+ TW9910_MPO_FIELD,
+ TW9910_MPO_RTCO,
+};
+
+struct tw9910_video_info {
+ unsigned long buswidth;
+ enum tw9910_mpout_pin mpout;
+ struct soc_camera_link link;
+};
+
+
+#endif /* __TW9910_H__ */
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index d73a8e9028a..9aaf652b20e 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -2,7 +2,7 @@
v4l2 chip identifiers header
This header provides a list of chip identifiers that can be returned
- through the VIDIOC_G_CHIP_IDENT ioctl.
+ through the VIDIOC_DBG_G_CHIP_IDENT ioctl.
Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
@@ -24,7 +24,7 @@
#ifndef V4L2_CHIP_IDENT_H_
#define V4L2_CHIP_IDENT_H_
-/* VIDIOC_G_CHIP_IDENT: identifies the actual chip installed on the board */
+/* VIDIOC_DBG_G_CHIP_IDENT: identifies the actual chip installed on the board */
enum {
/* general idents: reserved range 0-49 */
V4L2_IDENT_NONE = 0, /* No chip matched */
@@ -60,6 +60,8 @@ enum {
/* OmniVision sensors: reserved range 250-299 */
V4L2_IDENT_OV7670 = 250,
+ V4L2_IDENT_OV7720 = 251,
+ V4L2_IDENT_OV7725 = 252,
/* Conexant MPEG encoder/decoders: reserved range 410-420 */
V4L2_IDENT_CX23415 = 415,
@@ -69,6 +71,9 @@ enum {
/* module vp27smpx: just ident 2700 */
V4L2_IDENT_VP27SMPX = 2700,
+ /* module tvp5150 */
+ V4L2_IDENT_TVP5150 = 5150,
+
/* module cs5345: just ident 5345 */
V4L2_IDENT_CS5345 = 5345,
@@ -82,6 +87,9 @@ enum {
/* module wm8775: just ident 8775 */
V4L2_IDENT_WM8775 = 8775,
+ /* module tw9910: just ident 9910 */
+ V4L2_IDENT_TW9910 = 9910,
+
/* module cs53132a: just ident 53132 */
V4L2_IDENT_CS53l32A = 53132,
@@ -166,8 +174,10 @@ enum {
V4L2_IDENT_MT9M001C12ST = 45000,
V4L2_IDENT_MT9M001C12STM = 45005,
V4L2_IDENT_MT9M111 = 45007,
+ V4L2_IDENT_MT9M112 = 45008,
V4L2_IDENT_MT9V022IX7ATC = 45010, /* No way to detect "normal" I77ATx */
V4L2_IDENT_MT9V022IX7ATM = 45015, /* and "lead free" IA7ATx chips */
+ V4L2_IDENT_MT9T031 = 45020,
};
#endif
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 2f8719abf5c..95e74f1874e 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -57,6 +57,29 @@
/* ------------------------------------------------------------------------- */
+/* These printk constructs can be used with v4l2_device and v4l2_subdev */
+#define v4l2_printk(level, dev, fmt, arg...) \
+ printk(level "%s: " fmt, (dev)->name , ## arg)
+
+#define v4l2_err(dev, fmt, arg...) \
+ v4l2_printk(KERN_ERR, dev, fmt , ## arg)
+
+#define v4l2_warn(dev, fmt, arg...) \
+ v4l2_printk(KERN_WARNING, dev, fmt , ## arg)
+
+#define v4l2_info(dev, fmt, arg...) \
+ v4l2_printk(KERN_INFO, dev, fmt , ## arg)
+
+/* These three macros assume that the debug level is set with a module
+ parameter called 'debug'. */
+#define v4l2_dbg(level, debug, dev, fmt, arg...) \
+ do { \
+ if (debug >= (level)) \
+ v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
+ } while (0)
+
+/* ------------------------------------------------------------------------- */
+
/* Priority helper functions */
struct v4l2_prio_state {
@@ -91,10 +114,10 @@ u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id);
/* Register/chip ident helper function */
struct i2c_client; /* forward reference */
-int v4l2_chip_match_i2c_client(struct i2c_client *c, u32 id_type, u32 chip_id);
-int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_chip_ident *chip,
+int v4l2_chip_match_i2c_client(struct i2c_client *c, const struct v4l2_dbg_match *match);
+int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_dbg_chip_ident *chip,
u32 ident, u32 revision);
-int v4l2_chip_match_host(u32 id_type, u32 chip_id);
+int v4l2_chip_match_host(const struct v4l2_dbg_match *match);
/* ------------------------------------------------------------------------- */
@@ -104,11 +127,29 @@ struct i2c_driver;
struct i2c_adapter;
struct i2c_client;
struct i2c_device_id;
+struct v4l2_device;
+struct v4l2_subdev;
+struct v4l2_subdev_ops;
int v4l2_i2c_attach(struct i2c_adapter *adapter, int address, struct i2c_driver *driver,
const char *name,
int (*probe)(struct i2c_client *, const struct i2c_device_id *));
+/* Load an i2c module and return an initialized v4l2_subdev struct.
+ Only call request_module if module_name != NULL.
+ The client_type argument is the name of the chip that's on the adapter. */
+struct v4l2_subdev *v4l2_i2c_new_subdev(struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type, u8 addr);
+/* Probe and load an i2c module and return an initialized v4l2_subdev struct.
+ Only call request_module if module_name != NULL.
+ The client_type argument is the name of the chip that's on the adapter. */
+struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type,
+ const unsigned short *addrs);
+/* Initialize an v4l2_subdev with data from an i2c_client struct */
+void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
+ const struct v4l2_subdev_ops *ops);
+
/* ------------------------------------------------------------------------- */
/* Internal ioctls */
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index a0a6b41c5e0..e36faab8459 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -25,6 +25,25 @@
#define VFL_TYPE_MAX 4
struct v4l2_ioctl_callbacks;
+struct video_device;
+struct v4l2_device;
+
+/* Flag to mark the video_device struct as unregistered.
+ Drivers can set this flag if they want to block all future
+ device access. It is set by video_unregister_device. */
+#define V4L2_FL_UNREGISTERED (0)
+
+struct v4l2_file_operations {
+ struct module *owner;
+ ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
+ ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
+ unsigned int (*poll) (struct file *, struct poll_table_struct *);
+ long (*ioctl) (struct file *, unsigned int, unsigned long);
+ long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
+ int (*mmap) (struct file *, struct vm_area_struct *);
+ int (*open) (struct file *);
+ int (*release) (struct file *);
+};
/*
* Newer version of video_device, handled by videodev2.c
@@ -35,19 +54,24 @@ struct v4l2_ioctl_callbacks;
struct video_device
{
/* device ops */
- const struct file_operations *fops;
+ const struct v4l2_file_operations *fops;
/* sysfs */
struct device dev; /* v4l device */
- struct cdev cdev; /* character device */
- void (*cdev_release)(struct kobject *kobj);
+ struct cdev *cdev; /* character device */
+
+ /* Set either parent or v4l2_dev if your driver uses v4l2_device */
struct device *parent; /* device parent */
+ struct v4l2_device *v4l2_dev; /* v4l2_device parent */
/* device info */
char name[32];
int vfl_type;
+ /* 'minor' is set to -1 if the registration failed */
int minor;
u16 num;
+ /* use bitops to set/clear/test flags */
+ unsigned long flags;
/* attribute to differentiate multiple indices on one physical device */
int index;
@@ -58,7 +82,7 @@ struct video_device
v4l2_std_id current_norm; /* Current tvnorm */
/* callbacks */
- void (*release)(struct video_device *vfd);
+ void (*release)(struct video_device *vdev);
/* ioctl callbacks */
const struct v4l2_ioctl_ops *ioctl_ops;
@@ -67,36 +91,41 @@ struct video_device
/* dev to video-device */
#define to_video_device(cd) container_of(cd, struct video_device, dev)
-/* Register and unregister devices. Note that if video_register_device fails,
+/* Register video devices. Note that if video_register_device fails,
the release() callback of the video_device structure is *not* called, so
the caller is responsible for freeing any data. Usually that means that
- you call video_device_release() on failure. */
-int __must_check video_register_device(struct video_device *vfd, int type, int nr);
-int __must_check video_register_device_index(struct video_device *vfd,
+ you call video_device_release() on failure.
+
+ Also note that vdev->minor is set to -1 if the registration failed. */
+int __must_check video_register_device(struct video_device *vdev, int type, int nr);
+int __must_check video_register_device_index(struct video_device *vdev,
int type, int nr, int index);
-void video_unregister_device(struct video_device *vfd);
+
+/* Unregister video devices. Will do nothing if vdev == NULL or
+ vdev->minor < 0. */
+void video_unregister_device(struct video_device *vdev);
/* helper functions to alloc/release struct video_device, the
latter can also be used for video_device->release(). */
struct video_device * __must_check video_device_alloc(void);
-/* this release function frees the vfd pointer */
-void video_device_release(struct video_device *vfd);
+/* this release function frees the vdev pointer */
+void video_device_release(struct video_device *vdev);
/* this release function does nothing, use when the video_device is a
static global struct. Note that having a static video_device is
a dubious construction at best. */
-void video_device_release_empty(struct video_device *vfd);
+void video_device_release_empty(struct video_device *vdev);
/* helper functions to access driver private data. */
-static inline void *video_get_drvdata(struct video_device *dev)
+static inline void *video_get_drvdata(struct video_device *vdev)
{
- return dev_get_drvdata(&dev->dev);
+ return dev_get_drvdata(&vdev->dev);
}
-static inline void video_set_drvdata(struct video_device *dev, void *data)
+static inline void video_set_drvdata(struct video_device *vdev, void *data)
{
- dev_set_drvdata(&dev->dev, data);
+ dev_set_drvdata(&vdev->dev, data);
}
struct video_device *video_devdata(struct file *file);
@@ -108,4 +137,9 @@ static inline void *video_drvdata(struct file *file)
return video_get_drvdata(video_devdata(file));
}
+static inline int video_is_unregistered(struct video_device *vdev)
+{
+ return test_bit(V4L2_FL_UNREGISTERED, &vdev->flags);
+}
+
#endif /* _V4L2_DEV_H */
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
new file mode 100644
index 00000000000..9bf4ccc93db
--- /dev/null
+++ b/include/media/v4l2-device.h
@@ -0,0 +1,109 @@
+/*
+ V4L2 device support header.
+
+ Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _V4L2_DEVICE_H
+#define _V4L2_DEVICE_H
+
+#include <media/v4l2-subdev.h>
+
+/* Each instance of a V4L2 device should create the v4l2_device struct,
+ either stand-alone or embedded in a larger struct.
+
+ It allows easy access to sub-devices (see v4l2-subdev.h) and provides
+ basic V4L2 device-level support.
+ */
+
+#define V4L2_DEVICE_NAME_SIZE (BUS_ID_SIZE + 16)
+
+struct v4l2_device {
+ /* dev->driver_data points to this struct */
+ struct device *dev;
+ /* used to keep track of the registered subdevs */
+ struct list_head subdevs;
+ /* lock this struct; can be used by the driver as well if this
+ struct is embedded into a larger struct. */
+ spinlock_t lock;
+ /* unique device name, by default the driver name + bus ID */
+ char name[V4L2_DEVICE_NAME_SIZE];
+};
+
+/* Initialize v4l2_dev and make dev->driver_data point to v4l2_dev */
+int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev);
+/* Set v4l2_dev->dev->driver_data to NULL and unregister all sub-devices */
+void v4l2_device_unregister(struct v4l2_device *v4l2_dev);
+
+/* Register a subdev with a v4l2 device. While registered the subdev module
+ is marked as in-use. An error is returned if the module is no longer
+ loaded when you attempt to register it. */
+int __must_check v4l2_device_register_subdev(struct v4l2_device *dev, struct v4l2_subdev *sd);
+/* Unregister a subdev with a v4l2 device. Can also be called if the subdev
+ wasn't registered. In that case it will do nothing. */
+void v4l2_device_unregister_subdev(struct v4l2_subdev *sd);
+
+/* Iterate over all subdevs. */
+#define v4l2_device_for_each_subdev(sd, dev) \
+ list_for_each_entry(sd, &(dev)->subdevs, list)
+
+/* Call the specified callback for all subdevs matching the condition.
+ Ignore any errors. Note that you cannot add or delete a subdev
+ while walking the subdevs list. */
+#define __v4l2_device_call_subdevs(dev, cond, o, f, args...) \
+ do { \
+ struct v4l2_subdev *sd; \
+ \
+ list_for_each_entry(sd, &(dev)->subdevs, list) \
+ if ((cond) && sd->ops->o && sd->ops->o->f) \
+ sd->ops->o->f(sd , ##args); \
+ } while (0)
+
+/* Call the specified callback for all subdevs matching the condition.
+ If the callback returns an error other than 0 or -ENOIOCTLCMD, then
+ return with that error code. Note that you cannot add or delete a
+ subdev while walking the subdevs list. */
+#define __v4l2_device_call_subdevs_until_err(dev, cond, o, f, args...) \
+({ \
+ struct v4l2_subdev *sd; \
+ long err = 0; \
+ \
+ list_for_each_entry(sd, &(dev)->subdevs, list) { \
+ if ((cond) && sd->ops->o && sd->ops->o->f) \
+ err = sd->ops->o->f(sd , ##args); \
+ if (err && err != -ENOIOCTLCMD) \
+ break; \
+ } \
+ (err == -ENOIOCTLCMD) ? 0 : err; \
+})
+
+/* Call the specified callback for all subdevs matching grp_id (if 0, then
+ match them all). Ignore any errors. Note that you cannot add or delete
+ a subdev while walking the subdevs list. */
+#define v4l2_device_call_all(dev, grp_id, o, f, args...) \
+ __v4l2_device_call_subdevs(dev, \
+ !(grp_id) || sd->grp_id == (grp_id), o, f , ##args)
+
+/* Call the specified callback for all subdevs matching grp_id (if 0, then
+ match them all). If the callback returns an error other than 0 or
+ -ENOIOCTLCMD, then return with that error code. Note that you cannot
+ add or delete a subdev while walking the subdevs list. */
+#define v4l2_device_call_until_err(dev, grp_id, o, f, args...) \
+ __v4l2_device_call_subdevs_until_err(dev, \
+ !(grp_id) || sd->grp_id == (grp_id), o, f , ##args)
+
+#endif
diff --git a/include/media/v4l2-int-device.h b/include/media/v4l2-int-device.h
index 9c2df41dbf9..fbf58556157 100644
--- a/include/media/v4l2-int-device.h
+++ b/include/media/v4l2-int-device.h
@@ -183,6 +183,9 @@ enum v4l2_int_ioctl_num {
vidioc_int_s_crop_num,
vidioc_int_g_parm_num,
vidioc_int_s_parm_num,
+ vidioc_int_querystd_num,
+ vidioc_int_s_std_num,
+ vidioc_int_s_video_routing_num,
/*
*
@@ -216,7 +219,7 @@ enum v4l2_int_ioctl_num {
vidioc_int_reset_num,
/* VIDIOC_INT_INIT */
vidioc_int_init_num,
- /* VIDIOC_INT_G_CHIP_IDENT */
+ /* VIDIOC_DBG_G_CHIP_IDENT */
vidioc_int_g_chip_ident_num,
/*
@@ -284,6 +287,9 @@ V4L2_INT_WRAPPER_1(g_crop, struct v4l2_crop, *);
V4L2_INT_WRAPPER_1(s_crop, struct v4l2_crop, *);
V4L2_INT_WRAPPER_1(g_parm, struct v4l2_streamparm, *);
V4L2_INT_WRAPPER_1(s_parm, struct v4l2_streamparm, *);
+V4L2_INT_WRAPPER_1(querystd, v4l2_std_id, *);
+V4L2_INT_WRAPPER_1(s_std, v4l2_std_id, *);
+V4L2_INT_WRAPPER_1(s_video_routing, struct v4l2_routing, *);
V4L2_INT_WRAPPER_0(dev_init);
V4L2_INT_WRAPPER_0(dev_exit);
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index e6ba25b3d7c..b01c044868d 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -225,15 +225,21 @@ struct v4l2_ioctl_ops {
/* Debugging ioctls */
#ifdef CONFIG_VIDEO_ADV_DEBUG
int (*vidioc_g_register) (struct file *file, void *fh,
- struct v4l2_register *reg);
+ struct v4l2_dbg_register *reg);
int (*vidioc_s_register) (struct file *file, void *fh,
- struct v4l2_register *reg);
+ struct v4l2_dbg_register *reg);
#endif
int (*vidioc_g_chip_ident) (struct file *file, void *fh,
- struct v4l2_chip_ident *chip);
+ struct v4l2_dbg_chip_ident *chip);
+
+ int (*vidioc_enum_framesizes) (struct file *file, void *fh,
+ struct v4l2_frmsizeenum *fsize);
+
+ int (*vidioc_enum_frameintervals) (struct file *file, void *fh,
+ struct v4l2_frmivalenum *fival);
/* For other private ioctls */
- int (*vidioc_default) (struct file *file, void *fh,
+ long (*vidioc_default) (struct file *file, void *fh,
int cmd, void *arg);
};
@@ -271,38 +277,27 @@ extern const char *v4l2_field_names[];
extern const char *v4l2_type_names[];
/* Compatibility layer interface -- v4l1-compat module */
-typedef int (*v4l2_kioctl)(struct file *file,
+typedef long (*v4l2_kioctl)(struct file *file,
unsigned int cmd, void *arg);
#ifdef CONFIG_VIDEO_V4L1_COMPAT
-int v4l_compat_translate_ioctl(struct file *file,
+long v4l_compat_translate_ioctl(struct file *file,
int cmd, void *arg, v4l2_kioctl driver_ioctl);
#else
#define v4l_compat_translate_ioctl(file, cmd, arg, ioctl) (-EINVAL)
#endif
+#ifdef CONFIG_COMPAT
/* 32 Bits compatibility layer for 64 bits processors */
-extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
+extern long v4l2_compat_ioctl32(struct file *file, unsigned int cmd,
unsigned long arg);
+#endif
/* Include support for obsoleted stuff */
-extern int video_usercopy(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg,
- int (*func)(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg));
+extern long video_usercopy(struct file *file, unsigned int cmd,
+ unsigned long arg, v4l2_kioctl func);
/* Standard handlers for V4L ioctl's */
-
-/* This prototype is used on fops.unlocked_ioctl */
-extern int __video_ioctl2(struct file *file,
- unsigned int cmd, unsigned long arg);
-
-/* This prototype is used on fops.ioctl
- * Since fops.ioctl enables Kernel Big Lock, it is preferred
- * to use __video_ioctl2 instead.
- * It should be noticed that there's no lock code inside
- * video_ioctl2().
- */
-extern int video_ioctl2(struct inode *inode, struct file *file,
+extern long video_ioctl2(struct file *file,
unsigned int cmd, unsigned long arg);
#endif /* _V4L2_IOCTL_H */
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
new file mode 100644
index 00000000000..37b09e56e94
--- /dev/null
+++ b/include/media/v4l2-subdev.h
@@ -0,0 +1,189 @@
+/*
+ V4L2 sub-device support header.
+
+ Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _V4L2_SUBDEV_H
+#define _V4L2_SUBDEV_H
+
+#include <media/v4l2-common.h>
+
+struct v4l2_device;
+struct v4l2_subdev;
+struct tuner_setup;
+
+/* Sub-devices are devices that are connected somehow to the main bridge
+ device. These devices are usually audio/video muxers/encoders/decoders or
+ sensors and webcam controllers.
+
+ Usually these devices are controlled through an i2c bus, but other busses
+ may also be used.
+
+ The v4l2_subdev struct provides a way of accessing these devices in a
+ generic manner. Most operations that these sub-devices support fall in
+ a few categories: core ops, audio ops, video ops and tuner ops.
+
+ More categories can be added if needed, although this should remain a
+ limited set (no more than approx. 8 categories).
+
+ Each category has its own set of ops that subdev drivers can implement.
+
+ A subdev driver can leave the pointer to the category ops NULL if
+ it does not implement them (e.g. an audio subdev will generally not
+ implement the video category ops). The exception is the core category:
+ this must always be present.
+
+ These ops are all used internally so it is no problem to change, remove
+ or add ops or move ops from one to another category. Currently these
+ ops are based on the original ioctls, but since ops are not limited to
+ one argument there is room for improvement here once all i2c subdev
+ drivers are converted to use these ops.
+ */
+
+/* Core ops: it is highly recommended to implement at least these ops:
+
+ g_chip_ident
+ log_status
+ g_register
+ s_register
+
+ This provides basic debugging support.
+
+ The ioctl ops is meant for generic ioctl-like commands. Depending on
+ the use-case it might be better to use subdev-specific ops (currently
+ not yet implemented) since ops provide proper type-checking.
+ */
+struct v4l2_subdev_core_ops {
+ int (*g_chip_ident)(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip);
+ int (*log_status)(struct v4l2_subdev *sd);
+ int (*init)(struct v4l2_subdev *sd, u32 val);
+ int (*s_standby)(struct v4l2_subdev *sd, u32 standby);
+ int (*reset)(struct v4l2_subdev *sd, u32 val);
+ int (*s_gpio)(struct v4l2_subdev *sd, u32 val);
+ int (*queryctrl)(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc);
+ int (*g_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl);
+ int (*s_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl);
+ int (*querymenu)(struct v4l2_subdev *sd, struct v4l2_querymenu *qm);
+ long (*ioctl)(struct v4l2_subdev *sd, unsigned int cmd, void *arg);
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ int (*g_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg);
+ int (*s_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg);
+#endif
+};
+
+struct v4l2_subdev_tuner_ops {
+ int (*s_mode)(struct v4l2_subdev *sd, enum v4l2_tuner_type);
+ int (*s_radio)(struct v4l2_subdev *sd);
+ int (*s_frequency)(struct v4l2_subdev *sd, struct v4l2_frequency *freq);
+ int (*g_frequency)(struct v4l2_subdev *sd, struct v4l2_frequency *freq);
+ int (*g_tuner)(struct v4l2_subdev *sd, struct v4l2_tuner *vt);
+ int (*s_tuner)(struct v4l2_subdev *sd, struct v4l2_tuner *vt);
+ int (*s_std)(struct v4l2_subdev *sd, v4l2_std_id norm);
+ int (*s_type_addr)(struct v4l2_subdev *sd, struct tuner_setup *type);
+ int (*s_config)(struct v4l2_subdev *sd, const struct v4l2_priv_tun_config *config);
+};
+
+struct v4l2_subdev_audio_ops {
+ int (*s_clock_freq)(struct v4l2_subdev *sd, u32 freq);
+ int (*s_i2s_clock_freq)(struct v4l2_subdev *sd, u32 freq);
+ int (*s_routing)(struct v4l2_subdev *sd, const struct v4l2_routing *route);
+};
+
+struct v4l2_subdev_video_ops {
+ int (*s_routing)(struct v4l2_subdev *sd, const struct v4l2_routing *route);
+ int (*s_crystal_freq)(struct v4l2_subdev *sd, struct v4l2_crystal_freq *freq);
+ int (*decode_vbi_line)(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi_line);
+ int (*s_vbi_data)(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *vbi_data);
+ int (*g_vbi_data)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_data *vbi_data);
+ int (*g_sliced_vbi_cap)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_cap *cap);
+ int (*s_std_output)(struct v4l2_subdev *sd, v4l2_std_id std);
+ int (*s_stream)(struct v4l2_subdev *sd, int enable);
+ int (*s_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
+ int (*g_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
+};
+
+struct v4l2_subdev_ops {
+ const struct v4l2_subdev_core_ops *core;
+ const struct v4l2_subdev_tuner_ops *tuner;
+ const struct v4l2_subdev_audio_ops *audio;
+ const struct v4l2_subdev_video_ops *video;
+};
+
+#define V4L2_SUBDEV_NAME_SIZE 32
+
+/* Each instance of a subdev driver should create this struct, either
+ stand-alone or embedded in a larger struct.
+ */
+struct v4l2_subdev {
+ struct list_head list;
+ struct module *owner;
+ struct v4l2_device *dev;
+ const struct v4l2_subdev_ops *ops;
+ /* name must be unique */
+ char name[V4L2_SUBDEV_NAME_SIZE];
+ /* can be used to group similar subdevs, value is driver-specific */
+ u32 grp_id;
+ /* pointer to private data */
+ void *priv;
+};
+
+static inline void v4l2_set_subdevdata(struct v4l2_subdev *sd, void *p)
+{
+ sd->priv = p;
+}
+
+static inline void *v4l2_get_subdevdata(const struct v4l2_subdev *sd)
+{
+ return sd->priv;
+}
+
+/* Convert an ioctl-type command to the proper v4l2_subdev_ops function call.
+ This is used by subdev modules that can be called by both old-style ioctl
+ commands and through the v4l2_subdev_ops.
+
+ The ioctl API of the subdev driver can call this function to call the
+ right ops based on the ioctl cmd and arg.
+
+ Once all subdev drivers have been converted and all drivers no longer
+ use the ioctl interface, then this function can be removed.
+ */
+int v4l2_subdev_command(struct v4l2_subdev *sd, unsigned cmd, void *arg);
+
+static inline void v4l2_subdev_init(struct v4l2_subdev *sd,
+ const struct v4l2_subdev_ops *ops)
+{
+ INIT_LIST_HEAD(&sd->list);
+ /* ops->core MUST be set */
+ BUG_ON(!ops || !ops->core);
+ sd->ops = ops;
+ sd->dev = NULL;
+ sd->name[0] = '\0';
+ sd->grp_id = 0;
+ sd->priv = NULL;
+}
+
+/* Call an ops of a v4l2_subdev, doing the right checks against
+ NULL pointers.
+
+ Example: err = v4l2_subdev_call(sd, core, g_chip_ident, &chip);
+ */
+#define v4l2_subdev_call(sd, o, f, args...) \
+ (!(sd) ? -ENODEV : (((sd) && (sd)->ops->o && (sd)->ops->o->f) ? \
+ (sd)->ops->o->f((sd) , ##args) : -ENOIOCTLCMD))
+
+#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-28 22:22:07 +0000