1 /*
2  * ispccp2.h
3  *
4  * TI OMAP3 ISP - CCP2 module
5  *
6  * Copyright (C) 2010 Nokia Corporation
7  * Copyright (C) 2010 Texas Instruments, Inc.
8  *
9  * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10  *	     Sakari Ailus <sakari.ailus@iki.fi>
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License version 2 as
14  * published by the Free Software Foundation.
15  */
16 
17 #ifndef OMAP3_ISP_CCP2_H
18 #define OMAP3_ISP_CCP2_H
19 
20 #include <linux/videodev2.h>
21 
22 struct isp_device;
23 struct isp_csiphy;
24 
25 /* Sink and source ccp2 pads */
26 #define CCP2_PAD_SINK			0
27 #define CCP2_PAD_SOURCE			1
28 #define CCP2_PADS_NUM			2
29 
30 /* CCP2 input media entity */
31 enum ccp2_input_entity {
32 	CCP2_INPUT_NONE,
33 	CCP2_INPUT_SENSOR,
34 	CCP2_INPUT_MEMORY,
35 };
36 
37 /* CCP2 output media entity */
38 enum ccp2_output_entity {
39 	CCP2_OUTPUT_NONE,
40 	CCP2_OUTPUT_CCDC,
41 	CCP2_OUTPUT_MEMORY,
42 };
43 
44 
45 /* Logical channel configuration */
46 struct isp_interface_lcx_config {
47 	int crc;
48 	u32 data_start;
49 	u32 data_size;
50 	u32 format;
51 };
52 
53 /* Memory channel configuration */
54 struct isp_interface_mem_config {
55 	u32 dst_port;
56 	u32 vsize_count;
57 	u32 hsize_count;
58 	u32 src_ofst;
59 	u32 dst_ofst;
60 };
61 
62 /* CCP2 device */
63 struct isp_ccp2_device {
64 	struct v4l2_subdev subdev;
65 	struct v4l2_mbus_framefmt formats[CCP2_PADS_NUM];
66 	struct media_pad pads[CCP2_PADS_NUM];
67 
68 	enum ccp2_input_entity input;
69 	enum ccp2_output_entity output;
70 	struct isp_interface_lcx_config if_cfg;
71 	struct isp_interface_mem_config mem_cfg;
72 	struct isp_video video_in;
73 	struct isp_csiphy *phy;
74 	struct regulator *vdds_csib;
75 	enum isp_pipeline_stream_state state;
76 	wait_queue_head_t wait;
77 	atomic_t stopping;
78 };
79 
80 /* Function declarations */
81 int omap3isp_ccp2_init(struct isp_device *isp);
82 void omap3isp_ccp2_cleanup(struct isp_device *isp);
83 int omap3isp_ccp2_register_entities(struct isp_ccp2_device *ccp2,
84 			struct v4l2_device *vdev);
85 void omap3isp_ccp2_unregister_entities(struct isp_ccp2_device *ccp2);
86 void omap3isp_ccp2_isr(struct isp_ccp2_device *ccp2);
87 
88 #endif	/* OMAP3_ISP_CCP2_H */
89