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-rw-r--r--include/media/davinci/vpbe.h184
1 files changed, 184 insertions, 0 deletions
diff --git a/include/media/davinci/vpbe.h b/include/media/davinci/vpbe.h
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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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