1 /*
2  * Copyright (C) 2012 Texas Instruments Inc
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by 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  * Contributors:
18  *      Manjunath Hadli <manjunath.hadli@ti.com>
19  *      Prabhakar Lad <prabhakar.lad@ti.com>
20  */
21 
22 #ifndef _DAVINCI_VPFE_DM365_ISIF_H
23 #define _DAVINCI_VPFE_DM365_ISIF_H
24 
25 #include <linux/platform_device.h>
26 
27 #include <mach/mux.h>
28 
29 #include <media/davinci/vpfe_types.h>
30 #include <media/v4l2-ctrls.h>
31 #include <media/v4l2-device.h>
32 
33 #include "davinci_vpfe_user.h"
34 #include "dm365_isif_regs.h"
35 #include "vpfe_video.h"
36 
37 #define ISIF_CULLING_HCAPT_ODD		0xff
38 #define ISIF_CULLING_HCAPT_EVEN		0xff
39 #define ISIF_CULLING_VCAPT		0xff
40 
41 #define ISIF_CADU_BITS			0x07ff
42 #define ISIF_CADL_BITS			0x0ffff
43 
44 enum isif_pixfmt {
45 	ISIF_PIXFMT_RAW = 0,
46 	ISIF_PIXFMT_YCBCR_16BIT = 1,
47 	ISIF_PIXFMT_YCBCR_8BIT = 2,
48 };
49 
50 enum isif_frmfmt {
51 	ISIF_FRMFMT_PROGRESSIVE = 0,
52 	ISIF_FRMFMT_INTERLACED = 1,
53 };
54 
55 /* PIXEL ORDER IN MEMORY from LSB to MSB */
56 /* only applicable for 8-bit input mode  */
57 enum isif_pixorder {
58 	ISIF_PIXORDER_YCBYCR = 0,
59 	ISIF_PIXORDER_CBYCRY = 1,
60 };
61 
62 enum isif_buftype {
63 	ISIF_BUFTYPE_FLD_INTERLEAVED = 0,
64 	ISIF_BUFTYPE_FLD_SEPARATED = 1,
65 };
66 
67 struct isif_ycbcr_config {
68 	/* v4l2 pixel format */
69 	unsigned long v4l2_pix_fmt;
70 	/* isif pixel format */
71 	enum isif_pixfmt pix_fmt;
72 	/* isif frame format */
73 	enum isif_frmfmt frm_fmt;
74 	/* isif crop window */
75 	struct v4l2_rect win;
76 	/* field polarity */
77 	enum vpfe_pin_pol fid_pol;
78 	/* interface VD polarity */
79 	enum vpfe_pin_pol vd_pol;
80 	/* interface HD polarity */
81 	enum vpfe_pin_pol hd_pol;
82 	/* isif pix order. Only used for ycbcr capture */
83 	enum isif_pixorder pix_order;
84 	/* isif buffer type. Only used for ycbcr capture */
85 	enum isif_buftype buf_type;
86 };
87 
88 enum isif_cfa_pattern {
89 	ISIF_CFA_PAT_MOSAIC = 0,
90 	ISIF_CFA_PAT_STRIPE = 1,
91 };
92 
93 enum isif_data_msb {
94 	/* MSB b15 */
95 	ISIF_BIT_MSB_15 = 0,
96 	/* MSB b14 */
97 	ISIF_BIT_MSB_14 = 1,
98 	/* MSB b13 */
99 	ISIF_BIT_MSB_13 = 2,
100 	/* MSB b12 */
101 	ISIF_BIT_MSB_12 = 3,
102 	/* MSB b11 */
103 	ISIF_BIT_MSB_11 = 4,
104 	/* MSB b10 */
105 	ISIF_BIT_MSB_10 = 5,
106 	/* MSB b9 */
107 	ISIF_BIT_MSB_9 = 6,
108 	/* MSB b8 */
109 	ISIF_BIT_MSB_8 = 7,
110 	/* MSB b7 */
111 	ISIF_BIT_MSB_7 = 8,
112 };
113 
114 struct isif_params_raw {
115 	/* v4l2 pixel format */
116 	unsigned long v4l2_pix_fmt;
117 	/* isif pixel format */
118 	enum isif_pixfmt pix_fmt;
119 	/* isif frame format */
120 	enum isif_frmfmt frm_fmt;
121 	/* video window */
122 	struct v4l2_rect win;
123 	/* field polarity */
124 	enum vpfe_pin_pol fid_pol;
125 	/* interface VD polarity */
126 	enum vpfe_pin_pol vd_pol;
127 	/* interface HD polarity */
128 	enum vpfe_pin_pol hd_pol;
129 	/* buffer type. Applicable for interlaced mode */
130 	enum isif_buftype buf_type;
131 	/* cfa pattern */
132 	enum isif_cfa_pattern cfa_pat;
133 	/* Data MSB position */
134 	enum isif_data_msb data_msb;
135 	/* Enable horizontal flip */
136 	unsigned char horz_flip_en;
137 	/* Enable image invert vertically */
138 	unsigned char image_invert_en;
139 	unsigned char dpcm_predictor;
140 	struct vpfe_isif_raw_config config_params;
141 };
142 
143 enum isif_data_pack {
144 	ISIF_PACK_16BIT = 0,
145 	ISIF_PACK_12BIT = 1,
146 	ISIF_PACK_8BIT = 2,
147 };
148 
149 struct isif_gain_values {
150 	unsigned int cr_gain;
151 	unsigned int cgr_gain;
152 	unsigned int cgb_gain;
153 	unsigned int cb_gain;
154 	unsigned int offset;
155 };
156 
157 struct isif_oper_config {
158 	struct isif_ycbcr_config ycbcr;
159 	struct isif_params_raw bayer;
160 	enum isif_data_pack data_pack;
161 	struct isif_gain_values isif_gain_params;
162 	void __iomem *base_addr;
163 	void __iomem *linear_tbl0_addr;
164 	void __iomem *linear_tbl1_addr;
165 };
166 
167 #define ISIF_PAD_SINK      0
168 #define ISIF_PAD_SOURCE    1
169 
170 #define ISIF_PADS_NUM      2
171 
172 enum isif_input_entity {
173 	ISIF_INPUT_NONE = 0,
174 	ISIF_INPUT_PARALLEL = 1,
175 };
176 
177 #define ISIF_OUTPUT_NONE	(0)
178 #define ISIF_OUTPUT_MEMORY	(1 << 0)
179 #define ISIF_OUTPUT_IPIPEIF	(1 << 1)
180 
181 struct vpfe_isif_device {
182 	struct v4l2_subdev		subdev;
183 	struct media_pad		pads[ISIF_PADS_NUM];
184 	struct v4l2_mbus_framefmt	formats[ISIF_PADS_NUM];
185 	enum isif_input_entity		input;
186 	unsigned int			output;
187 	struct v4l2_ctrl_handler        ctrls;
188 	struct v4l2_rect		crop;
189 	struct isif_oper_config		isif_cfg;
190 	struct vpfe_video_device	video_out;
191 };
192 
193 enum v4l2_field vpfe_isif_get_fid(struct vpfe_device *vpfe_dev);
194 void vpfe_isif_unregister_entities(struct vpfe_isif_device *isif);
195 int vpfe_isif_register_entities(struct vpfe_isif_device *isif,
196 				struct v4l2_device *dev);
197 int vpfe_isif_init(struct vpfe_isif_device *isif, struct platform_device *pdev);
198 void vpfe_isif_cleanup(struct vpfe_isif_device *vpfe_isif,
199 		       struct platform_device *pdev);
200 void vpfe_isif_vidint1_isr(struct vpfe_isif_device *isif);
201 void vpfe_isif_buffer_isr(struct vpfe_isif_device *isif);
202 
203 #endif		/* _DAVINCI_VPFE_DM365_ISIF_H */
204