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authorManjunath Hadli <manjunath.hadli@ti.com>2011-06-17 03:01:32 -0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-07-27 16:53:09 -0400
commit66715cdc3224a4e241c1a92856b9a4af3b70e06d (patch)
tree12f6651b8b717a090d1f71708be13aebf6e0066c /include/media
parenta2c25b444e99f2369b29e507568c8703186174d0 (diff)
[media] davinci vpbe: VPBE display driver
This patch implements the core functionality of the display driver, mainly controlling the VENC and other encoders, and acting as the one point interface for the main V4L2 driver. This implements the core of each of the V4L2 IOCTLs. Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com> Acked-by: Muralidharan Karicheri <m-karicheri2@ti.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
-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
new file mode 100644
index 000000000000..8b11fb037980
--- /dev/null
+++ b/include/media/davinci/vpbe.h
@@ -0,0 +1,184 @@
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 2024-09-22 16:36:01 -0400