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gerrit-public.fairphone.software / kernel / msm-4.9 / 27c3afe6e1cf129faac90405121203962da08ff4 / . / arch / arm / plat-mxc / include / mach / ipu.h
blob: a9221f1cc1a0922a0c2dd39e285b5e50e038feae [file] [log] [blame]
Guennadi Liakhovetski5296b562009-01-19 15:36:21 -0700[diff] [blame]1/*
2 * Copyright (C) 2008
3 * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
4 *
5 * Copyright (C) 2005-2007 Freescale Semiconductor, Inc.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef _IPU_H_
13#define _IPU_H_
14
15#include <linux/types.h>
16#include <linux/dmaengine.h>
17
18/* IPU DMA Controller channel definitions. */
19enum ipu_channel {
20 IDMAC_IC_0 = 0, /* IC (encoding task) to memory */
21 IDMAC_IC_1 = 1, /* IC (viewfinder task) to memory */
22 IDMAC_ADC_0 = 1,
23 IDMAC_IC_2 = 2,
24 IDMAC_ADC_1 = 2,
25 IDMAC_IC_3 = 3,
26 IDMAC_IC_4 = 4,
27 IDMAC_IC_5 = 5,
28 IDMAC_IC_6 = 6,
29 IDMAC_IC_7 = 7, /* IC (sensor data) to memory */
30 IDMAC_IC_8 = 8,
31 IDMAC_IC_9 = 9,
32 IDMAC_IC_10 = 10,
33 IDMAC_IC_11 = 11,
34 IDMAC_IC_12 = 12,
35 IDMAC_IC_13 = 13,
36 IDMAC_SDC_0 = 14, /* Background synchronous display data */
37 IDMAC_SDC_1 = 15, /* Foreground data (overlay) */
38 IDMAC_SDC_2 = 16,
39 IDMAC_SDC_3 = 17,
40 IDMAC_ADC_2 = 18,
41 IDMAC_ADC_3 = 19,
42 IDMAC_ADC_4 = 20,
43 IDMAC_ADC_5 = 21,
44 IDMAC_ADC_6 = 22,
45 IDMAC_ADC_7 = 23,
46 IDMAC_PF_0 = 24,
47 IDMAC_PF_1 = 25,
48 IDMAC_PF_2 = 26,
49 IDMAC_PF_3 = 27,
50 IDMAC_PF_4 = 28,
51 IDMAC_PF_5 = 29,
52 IDMAC_PF_6 = 30,
53 IDMAC_PF_7 = 31,
54};
55
56/* Order significant! */
57enum ipu_channel_status {
58 IPU_CHANNEL_FREE,
59 IPU_CHANNEL_INITIALIZED,
60 IPU_CHANNEL_READY,
61 IPU_CHANNEL_ENABLED,
62};
63
64#define IPU_CHANNELS_NUM 32
65
66enum pixel_fmt {
67 /* 1 byte */
68 IPU_PIX_FMT_GENERIC,
69 IPU_PIX_FMT_RGB332,
70 IPU_PIX_FMT_YUV420P,
71 IPU_PIX_FMT_YUV422P,
72 IPU_PIX_FMT_YUV420P2,
73 IPU_PIX_FMT_YVU422P,
74 /* 2 bytes */
75 IPU_PIX_FMT_RGB565,
76 IPU_PIX_FMT_RGB666,
77 IPU_PIX_FMT_BGR666,
78 IPU_PIX_FMT_YUYV,
79 IPU_PIX_FMT_UYVY,
80 /* 3 bytes */
81 IPU_PIX_FMT_RGB24,
82 IPU_PIX_FMT_BGR24,
83 /* 4 bytes */
84 IPU_PIX_FMT_GENERIC_32,
85 IPU_PIX_FMT_RGB32,
86 IPU_PIX_FMT_BGR32,
87 IPU_PIX_FMT_ABGR32,
88 IPU_PIX_FMT_BGRA32,
89 IPU_PIX_FMT_RGBA32,
90};
91
92enum ipu_color_space {
93 IPU_COLORSPACE_RGB,
94 IPU_COLORSPACE_YCBCR,
95 IPU_COLORSPACE_YUV
96};
97
98/*
99 * Enumeration of IPU rotation modes
100 */
101enum ipu_rotate_mode {
102 /* Note the enum values correspond to BAM value */
103 IPU_ROTATE_NONE = 0,
104 IPU_ROTATE_VERT_FLIP = 1,
105 IPU_ROTATE_HORIZ_FLIP = 2,
106 IPU_ROTATE_180 = 3,
107 IPU_ROTATE_90_RIGHT = 4,
108 IPU_ROTATE_90_RIGHT_VFLIP = 5,
109 IPU_ROTATE_90_RIGHT_HFLIP = 6,
110 IPU_ROTATE_90_LEFT = 7,
111};
112
113struct ipu_platform_data {
114 unsigned int irq_base;
115};
116
117/*
118 * Enumeration of DI ports for ADC.
119 */
120enum display_port {
121 DISP0,
122 DISP1,
123 DISP2,
124 DISP3
125};
126
127struct idmac_video_param {
128 unsigned short in_width;
129 unsigned short in_height;
130 uint32_t in_pixel_fmt;
131 unsigned short out_width;
132 unsigned short out_height;
133 uint32_t out_pixel_fmt;
134 unsigned short out_stride;
135 bool graphics_combine_en;
136 bool global_alpha_en;
137 bool key_color_en;
138 enum display_port disp;
139 unsigned short out_left;
140 unsigned short out_top;
141};
142
143/*
144 * Union of initialization parameters for a logical channel. So far only video
145 * parameters are used.
146 */
147union ipu_channel_param {
148 struct idmac_video_param video;
149};
150
151struct idmac_tx_desc {
152 struct dma_async_tx_descriptor txd;
153 struct scatterlist *sg; /* scatterlist for this */
154 unsigned int sg_len; /* tx-descriptor. */
155 struct list_head list;
156};
157
158struct idmac_channel {
159 struct dma_chan dma_chan;
160 dma_cookie_t completed; /* last completed cookie */
161 union ipu_channel_param params;
162 enum ipu_channel link; /* input channel, linked to the output */
163 enum ipu_channel_status status;
164 void *client; /* Only one client per channel */
165 unsigned int n_tx_desc;
166 struct idmac_tx_desc *desc; /* allocated tx-descriptors */
167 struct scatterlist *sg[2]; /* scatterlist elements in buffer-0 and -1 */
168 struct list_head free_list; /* free tx-descriptors */
169 struct list_head queue; /* queued tx-descriptors */
170 spinlock_t lock; /* protects sg[0,1], queue */
171 struct mutex chan_mutex; /* protects status, cookie, free_list */
172 bool sec_chan_en;
173 int active_buffer;
174 unsigned int eof_irq;
175 char eof_name[16]; /* EOF IRQ name for request_irq() */
176};
177
178#define to_tx_desc(tx) container_of(tx, struct idmac_tx_desc, txd)
179#define to_idmac_chan(c) container_of(c, struct idmac_channel, dma_chan)
180
181#endif