1 /*
2  * vsp1.h  --  R-Car VSP1 Driver
3  *
4  * Copyright (C) 2013-2014 Renesas Electronics Corporation
5  *
6  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  */
13 #ifndef __VSP1_H__
14 #define __VSP1_H__
15 
16 #include <linux/io.h>
17 #include <linux/list.h>
18 #include <linux/mutex.h>
19 
20 #include <media/media-device.h>
21 #include <media/v4l2-device.h>
22 #include <media/v4l2-subdev.h>
23 
24 #include "vsp1_regs.h"
25 
26 struct clk;
27 struct device;
28 
29 struct vsp1_platform_data;
30 struct vsp1_bru;
31 struct vsp1_hsit;
32 struct vsp1_lif;
33 struct vsp1_lut;
34 struct vsp1_rwpf;
35 struct vsp1_sru;
36 struct vsp1_uds;
37 
38 #define VSP1_MAX_RPF		5
39 #define VSP1_MAX_UDS		3
40 #define VSP1_MAX_WPF		4
41 
42 #define VSP1_HAS_LIF		(1 << 0)
43 #define VSP1_HAS_LUT		(1 << 1)
44 #define VSP1_HAS_SRU		(1 << 2)
45 
46 struct vsp1_platform_data {
47 	unsigned int features;
48 	unsigned int rpf_count;
49 	unsigned int uds_count;
50 	unsigned int wpf_count;
51 };
52 
53 struct vsp1_device {
54 	struct device *dev;
55 	struct vsp1_platform_data pdata;
56 
57 	void __iomem *mmio;
58 	struct clk *clock;
59 
60 	struct mutex lock;
61 	int ref_count;
62 
63 	struct vsp1_bru *bru;
64 	struct vsp1_hsit *hsi;
65 	struct vsp1_hsit *hst;
66 	struct vsp1_lif *lif;
67 	struct vsp1_lut *lut;
68 	struct vsp1_rwpf *rpf[VSP1_MAX_RPF];
69 	struct vsp1_sru *sru;
70 	struct vsp1_uds *uds[VSP1_MAX_UDS];
71 	struct vsp1_rwpf *wpf[VSP1_MAX_WPF];
72 
73 	struct list_head entities;
74 
75 	struct v4l2_device v4l2_dev;
76 	struct media_device media_dev;
77 };
78 
79 int vsp1_device_get(struct vsp1_device *vsp1);
80 void vsp1_device_put(struct vsp1_device *vsp1);
81 
vsp1_read(struct vsp1_device * vsp1,u32 reg)82 static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
83 {
84 	return ioread32(vsp1->mmio + reg);
85 }
86 
vsp1_write(struct vsp1_device * vsp1,u32 reg,u32 data)87 static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
88 {
89 	iowrite32(data, vsp1->mmio + reg);
90 }
91 
92 #endif /* __VSP1_H__ */
93