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/*
* Copyright (C) 2010 Texas Instruments Inc
*
* 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 version 2.
*
* 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 _VPBE_H
#define _VPBE_H
#include <linux/videodev2.h>
#include <linux/i2c.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-device.h>
#include <media/davinci/vpbe_osd.h>
#include <media/davinci/vpbe_venc.h>
#include <media/davinci/vpbe_types.h>
/* OSD configuration info */
struct osd_config_info {
char module_name[32];
};
struct vpbe_output {
struct v4l2_output output;
/*
* If output capabilities include dv_preset, list supported presets
* below
*/
char *subdev_name;
/*
* defualt_mode identifies the default timings set at the venc or
* external encoder.
*/
char *default_mode;
/*
* Fields below are used for supporting multiple modes. For example,
* LCD panel might support different modes and they are listed here.
* Similarly for supporting external encoders, lcd controller port
* requires a set of non-standard timing values to be listed here for
* each supported mode since venc is used in non-standard timing mode
* for interfacing with external encoder similar to configuring lcd
* panel timings
*/
unsigned int num_modes;
struct vpbe_enc_mode_info *modes;
/*
* Bus configuration goes here for external encoders. Some encoders
* may require multiple interface types for each of the output. For
* example, SD modes would use YCC8 where as HD mode would use YCC16.
* Not sure if this is needed on a per mode basis instead of per
* output basis. If per mode is needed, we may have to move this to
* mode_info structure
*/
};
/* encoder configuration info */
struct encoder_config_info {
char module_name[32];
/* Is this an i2c device ? */
unsigned int is_i2c:1;
/* i2c subdevice board info */
struct i2c_board_info board_info;
};
/* structure for defining vpbe display subsystem components */
struct vpbe_config {
char module_name[32];
/* i2c bus adapter no */
int i2c_adapter_id;
struct osd_config_info osd;
struct encoder_config_info venc;
/* external encoder information goes here */
int num_ext_encoders;
struct encoder_config_info *ext_encoders;
int num_outputs;
/* Order is venc outputs followed by LCD and then external encoders */
struct vpbe_output *outputs;
};
struct vpbe_device;
struct vpbe_device_ops {
/* crop cap for the display */
int (*g_cropcap)(struct vpbe_device *vpbe_dev,
struct v4l2_cropcap *cropcap);
/* Enumerate the outputs */
int (*enum_outputs)(struct vpbe_device *vpbe_dev,
struct v4l2_output *output);
/* Set output to the given index */
int (*set_output)(struct vpbe_device *vpbe_dev,
int index);
/* Get current output */
unsigned int (*get_output)(struct vpbe_device *vpbe_dev);
/* Set DV preset at current output */
int (*s_dv_preset)(struct vpbe_device *vpbe_dev,
struct v4l2_dv_preset *dv_preset);
/* Get DV presets supported at the output */
int (*g_dv_preset)(struct vpbe_device *vpbe_dev,
struct v4l2_dv_preset *dv_preset);
/* Enumerate the DV Presets supported at the output */
int (*enum_dv_presets)(struct vpbe_device *vpbe_dev,
struct v4l2_dv_enum_preset *preset_info);
/* Set std at the output */
int (*s_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id);
/* Get the current std at the output */
int (*g_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id);
/* initialize the device */
int (*initialize)(struct device *dev, struct vpbe_device *vpbe_dev);
/* De-initialize the device */
void (*deinitialize)(struct device *dev, struct vpbe_device *vpbe_dev);
/* Get the current mode info */
int (*get_mode_info)(struct vpbe_device *vpbe_dev,
struct vpbe_enc_mode_info*);
/*
* Set the current mode in the encoder. Alternate way of setting
* standard or DV preset or custom timings in the encoder
*/
int (*set_mode)(struct vpbe_device *vpbe_dev,
struct vpbe_enc_mode_info*);
/* Power management operations */
int (*suspend)(struct vpbe_device *vpbe_dev);
int (*resume)(struct vpbe_device *vpbe_dev);
};
/* struct for vpbe device */
struct vpbe_device {
/* V4l2 device */
struct v4l2_device v4l2_dev;
/* vpbe dispay controller cfg */
struct vpbe_config *cfg;
/* parent device */
struct device *pdev;
/* external encoder v4l2 sub devices */
struct v4l2_subdev **encoders;
/* current encoder index */
int current_sd_index;
struct mutex lock;
/* device initialized */
int initialized;
/* vpbe dac clock */
struct clk *dac_clk;
/* osd_device pointer */
struct osd_state *osd_device;
/*
* fields below are accessed by users of vpbe_device. Not the
* ones above
*/
/* current output */
int current_out_index;
/* lock used by caller to do atomic operation on vpbe device */
/* current timings set in the controller */
struct vpbe_enc_mode_info current_timings;
/* venc sub device */
struct v4l2_subdev *venc;
/* device operations below */
struct vpbe_device_ops ops;
};
#endif
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