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1/*
2 * Copyright (C) 2010 Texas Instruments Inc
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation version 2.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 */
17#ifndef _VPBE_H
18#define _VPBE_H
19
20#include <linux/videodev2.h>
21#include <linux/i2c.h>
22
23#include <media/v4l2-dev.h>
24#include <media/v4l2-ioctl.h>
25#include <media/v4l2-device.h>
26#include <media/davinci/vpbe_osd.h>
27#include <media/davinci/vpbe_venc.h>
28#include <media/davinci/vpbe_types.h>
29
30/* OSD configuration info */
31struct osd_config_info {
32 char module_name[32];
33};
34
35struct vpbe_output {
36 struct v4l2_output output;
37 /*
38 * If output capabilities include dv_preset, list supported presets
39 * below
40 */
41 char *subdev_name;
42 /*
43 * defualt_mode identifies the default timings set at the venc or
44 * external encoder.
45 */
46 char *default_mode;
47 /*
48 * Fields below are used for supporting multiple modes. For example,
49 * LCD panel might support different modes and they are listed here.
50 * Similarly for supporting external encoders, lcd controller port
51 * requires a set of non-standard timing values to be listed here for
52 * each supported mode since venc is used in non-standard timing mode
53 * for interfacing with external encoder similar to configuring lcd
54 * panel timings
55 */
56 unsigned int num_modes;
57 struct vpbe_enc_mode_info *modes;
58 /*
59 * Bus configuration goes here for external encoders. Some encoders
60 * may require multiple interface types for each of the output. For
61 * example, SD modes would use YCC8 where as HD mode would use YCC16.
62 * Not sure if this is needed on a per mode basis instead of per
63 * output basis. If per mode is needed, we may have to move this to
64 * mode_info structure
65 */
66};
67
68/* encoder configuration info */
69struct encoder_config_info {
70 char module_name[32];
71 /* Is this an i2c device ? */
72 unsigned int is_i2c:1;
73 /* i2c subdevice board info */
74 struct i2c_board_info board_info;
75};
76
77/* structure for defining vpbe display subsystem components */
78struct vpbe_config {
79 char module_name[32];
80 /* i2c bus adapter no */
81 int i2c_adapter_id;
82 struct osd_config_info osd;
83 struct encoder_config_info venc;
84 /* external encoder information goes here */
85 int num_ext_encoders;
86 struct encoder_config_info *ext_encoders;
87 int num_outputs;
88 /* Order is venc outputs followed by LCD and then external encoders */
89 struct vpbe_output *outputs;
90};
91
92struct vpbe_device;
93
94struct vpbe_device_ops {
95 /* crop cap for the display */
96 int (*g_cropcap)(struct vpbe_device *vpbe_dev,
97 struct v4l2_cropcap *cropcap);
98
99 /* Enumerate the outputs */
100 int (*enum_outputs)(struct vpbe_device *vpbe_dev,
101 struct v4l2_output *output);
102
103 /* Set output to the given index */
104 int (*set_output)(struct vpbe_device *vpbe_dev,
105 int index);
106
107 /* Get current output */
108 unsigned int (*get_output)(struct vpbe_device *vpbe_dev);
109
110 /* Set DV preset at current output */
111 int (*s_dv_preset)(struct vpbe_device *vpbe_dev,
112 struct v4l2_dv_preset *dv_preset);
113
114 /* Get DV presets supported at the output */
115 int (*g_dv_preset)(struct vpbe_device *vpbe_dev,
116 struct v4l2_dv_preset *dv_preset);
117
118 /* Enumerate the DV Presets supported at the output */
119 int (*enum_dv_presets)(struct vpbe_device *vpbe_dev,
120 struct v4l2_dv_enum_preset *preset_info);
121
122 /* Set std at the output */
123 int (*s_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id);
124
125 /* Get the current std at the output */
126 int (*g_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id);
127
128 /* initialize the device */
129 int (*initialize)(struct device *dev, struct vpbe_device *vpbe_dev);
130
131 /* De-initialize the device */
132 void (*deinitialize)(struct device *dev, struct vpbe_device *vpbe_dev);
133
134 /* Get the current mode info */
135 int (*get_mode_info)(struct vpbe_device *vpbe_dev,
136 struct vpbe_enc_mode_info*);
137
138 /*
139 * Set the current mode in the encoder. Alternate way of setting
140 * standard or DV preset or custom timings in the encoder
141 */
142 int (*set_mode)(struct vpbe_device *vpbe_dev,
143 struct vpbe_enc_mode_info*);
144 /* Power management operations */
145 int (*suspend)(struct vpbe_device *vpbe_dev);
146 int (*resume)(struct vpbe_device *vpbe_dev);
147};
148
149/* struct for vpbe device */
150struct vpbe_device {
151 /* V4l2 device */
152 struct v4l2_device v4l2_dev;
153 /* vpbe dispay controller cfg */
154 struct vpbe_config *cfg;
155 /* parent device */
156 struct device *pdev;
157 /* external encoder v4l2 sub devices */
158 struct v4l2_subdev **encoders;
159 /* current encoder index */
160 int current_sd_index;
161 struct mutex lock;
162 /* device initialized */
163 int initialized;
164 /* vpbe dac clock */
165 struct clk *dac_clk;
166 /* osd_device pointer */
167 struct osd_state *osd_device;
168 /*
169 * fields below are accessed by users of vpbe_device. Not the
170 * ones above
171 */
172
173 /* current output */
174 int current_out_index;
175 /* lock used by caller to do atomic operation on vpbe device */
176 /* current timings set in the controller */
177 struct vpbe_enc_mode_info current_timings;
178 /* venc sub device */
179 struct v4l2_subdev *venc;
180 /* device operations below */
181 struct vpbe_device_ops ops;
182};
183
184#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-25 03:48:34 -0500