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7da8a6cb MK |
1 | /* |
2 | * Copyright (C) 2008-2009 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; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
17 | */ | |
18 | ||
19 | #ifndef _VPFE_CAPTURE_H | |
20 | #define _VPFE_CAPTURE_H | |
21 | ||
22 | #ifdef __KERNEL__ | |
23 | ||
24 | /* Header files */ | |
25 | #include <media/v4l2-dev.h> | |
26 | #include <linux/videodev2.h> | |
27 | #include <linux/clk.h> | |
28 | #include <linux/i2c.h> | |
29 | #include <media/v4l2-ioctl.h> | |
30 | #include <media/v4l2-device.h> | |
31 | #include <media/videobuf-dma-contig.h> | |
32 | #include <media/davinci/vpfe_types.h> | |
33 | ||
34 | #define VPFE_CAPTURE_NUM_DECODERS 5 | |
35 | ||
36 | /* Macros */ | |
37 | #define VPFE_MAJOR_RELEASE 0 | |
38 | #define VPFE_MINOR_RELEASE 0 | |
39 | #define VPFE_BUILD 1 | |
40 | #define VPFE_CAPTURE_VERSION_CODE ((VPFE_MAJOR_RELEASE << 16) | \ | |
41 | (VPFE_MINOR_RELEASE << 8) | \ | |
42 | VPFE_BUILD) | |
43 | ||
44 | #define CAPTURE_DRV_NAME "vpfe-capture" | |
45 | ||
46 | struct vpfe_pixel_format { | |
47 | struct v4l2_fmtdesc fmtdesc; | |
48 | /* bytes per pixel */ | |
49 | int bpp; | |
50 | }; | |
51 | ||
52 | struct vpfe_std_info { | |
53 | int active_pixels; | |
54 | int active_lines; | |
55 | /* current frame format */ | |
56 | int frame_format; | |
57 | }; | |
58 | ||
59 | struct vpfe_route { | |
60 | u32 input; | |
61 | u32 output; | |
62 | }; | |
63 | ||
64 | struct vpfe_subdev_info { | |
65 | /* Sub device name */ | |
66 | char name[32]; | |
67 | /* Sub device group id */ | |
68 | int grp_id; | |
69 | /* Number of inputs supported */ | |
70 | int num_inputs; | |
71 | /* inputs available at the sub device */ | |
72 | struct v4l2_input *inputs; | |
73 | /* Sub dev routing information for each input */ | |
74 | struct vpfe_route *routes; | |
75 | /* check if sub dev supports routing */ | |
76 | int can_route; | |
77 | /* ccdc bus/interface configuration */ | |
78 | struct vpfe_hw_if_param ccdc_if_params; | |
79 | /* i2c subdevice board info */ | |
80 | struct i2c_board_info board_info; | |
81 | }; | |
82 | ||
83 | struct vpfe_config { | |
84 | /* Number of sub devices connected to vpfe */ | |
85 | int num_subdevs; | |
e53a70b4 VH |
86 | /* i2c bus adapter no */ |
87 | int i2c_adapter_id; | |
7da8a6cb MK |
88 | /* information about each subdev */ |
89 | struct vpfe_subdev_info *sub_devs; | |
90 | /* evm card info */ | |
91 | char *card_name; | |
92 | /* ccdc name */ | |
93 | char *ccdc; | |
94 | /* vpfe clock */ | |
95 | struct clk *vpssclk; | |
96 | struct clk *slaveclk; | |
085b54a2 VH |
97 | /* Function for Clearing the interrupt */ |
98 | void (*clr_intr)(int vdint); | |
7da8a6cb MK |
99 | }; |
100 | ||
101 | struct vpfe_device { | |
102 | /* V4l2 specific parameters */ | |
103 | /* Identifies video device for this channel */ | |
104 | struct video_device *video_dev; | |
105 | /* sub devices */ | |
106 | struct v4l2_subdev **sd; | |
107 | /* vpfe cfg */ | |
108 | struct vpfe_config *cfg; | |
109 | /* V4l2 device */ | |
110 | struct v4l2_device v4l2_dev; | |
111 | /* parent device */ | |
112 | struct device *pdev; | |
113 | /* Used to keep track of state of the priority */ | |
114 | struct v4l2_prio_state prio; | |
115 | /* number of open instances of the channel */ | |
116 | u32 usrs; | |
117 | /* Indicates id of the field which is being displayed */ | |
118 | u32 field_id; | |
119 | /* flag to indicate whether decoder is initialized */ | |
120 | u8 initialized; | |
121 | /* current interface type */ | |
122 | struct vpfe_hw_if_param vpfe_if_params; | |
123 | /* ptr to currently selected sub device */ | |
124 | struct vpfe_subdev_info *current_subdev; | |
125 | /* current input at the sub device */ | |
126 | int current_input; | |
127 | /* Keeps track of the information about the standard */ | |
128 | struct vpfe_std_info std_info; | |
129 | /* std index into std table */ | |
130 | int std_index; | |
131 | /* CCDC IRQs used when CCDC/ISIF output to SDRAM */ | |
132 | unsigned int ccdc_irq0; | |
133 | unsigned int ccdc_irq1; | |
134 | /* number of buffers in fbuffers */ | |
135 | u32 numbuffers; | |
136 | /* List of buffer pointers for storing frames */ | |
137 | u8 *fbuffers[VIDEO_MAX_FRAME]; | |
138 | /* Pointer pointing to current v4l2_buffer */ | |
139 | struct videobuf_buffer *cur_frm; | |
140 | /* Pointer pointing to next v4l2_buffer */ | |
141 | struct videobuf_buffer *next_frm; | |
142 | /* | |
143 | * This field keeps track of type of buffer exchange mechanism | |
144 | * user has selected | |
145 | */ | |
146 | enum v4l2_memory memory; | |
147 | /* Used to store pixel format */ | |
148 | struct v4l2_format fmt; | |
149 | /* | |
150 | * used when IMP is chained to store the crop window which | |
151 | * is different from the image window | |
152 | */ | |
153 | struct v4l2_rect crop; | |
154 | /* Buffer queue used in video-buf */ | |
155 | struct videobuf_queue buffer_queue; | |
156 | /* Queue of filled frames */ | |
157 | struct list_head dma_queue; | |
158 | /* Used in video-buf */ | |
159 | spinlock_t irqlock; | |
160 | /* IRQ lock for DMA queue */ | |
161 | spinlock_t dma_queue_lock; | |
162 | /* lock used to access this structure */ | |
163 | struct mutex lock; | |
164 | /* number of users performing IO */ | |
165 | u32 io_usrs; | |
166 | /* Indicates whether streaming started */ | |
167 | u8 started; | |
168 | /* | |
169 | * offset where second field starts from the starting of the | |
3ad2f3fb | 170 | * buffer for field separated YCbCr formats |
7da8a6cb MK |
171 | */ |
172 | u32 field_off; | |
173 | }; | |
174 | ||
175 | /* File handle structure */ | |
176 | struct vpfe_fh { | |
177 | struct vpfe_device *vpfe_dev; | |
178 | /* Indicates whether this file handle is doing IO */ | |
179 | u8 io_allowed; | |
180 | /* Used to keep track priority of this instance */ | |
181 | enum v4l2_priority prio; | |
182 | }; | |
183 | ||
184 | struct vpfe_config_params { | |
185 | u8 min_numbuffers; | |
186 | u8 numbuffers; | |
187 | u32 min_bufsize; | |
188 | u32 device_bufsize; | |
189 | }; | |
190 | ||
191 | #endif /* End of __KERNEL__ */ | |
192 | /** | |
193 | * VPFE_CMD_S_CCDC_RAW_PARAMS - EXPERIMENTAL IOCTL to set raw capture params | |
194 | * This can be used to configure modules such as defect pixel correction, | |
195 | * color space conversion, culling etc. This is an experimental ioctl that | |
196 | * will change in future kernels. So use this ioctl with care ! | |
197 | * TODO: This is to be split into multiple ioctls and also explore the | |
198 | * possibility of extending the v4l2 api to include this | |
199 | **/ | |
200 | #define VPFE_CMD_S_CCDC_RAW_PARAMS _IOW('V', BASE_VIDIOC_PRIVATE + 1, \ | |
201 | void *) | |
202 | #endif /* _DAVINCI_VPFE_H */ |