linux/include/linux/fsl-diu-fb.h
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   1/*
   2 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
   3 *
   4 *  Freescale DIU Frame Buffer device driver
   5 *
   6 *  Authors: Hongjun Chen <hong-jun.chen@freescale.com>
   7 *           Paul Widmer <paul.widmer@freescale.com>
   8 *           Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
   9 *           York Sun <yorksun@freescale.com>
  10 *
  11 *   Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix
  12 *
  13 * This program is free software; you can redistribute  it and/or modify it
  14 * under  the terms of  the GNU General  Public License as published by the
  15 * Free Software Foundation;  either version 2 of the  License, or (at your
  16 * option) any later version.
  17 *
  18 */
  19
  20#ifndef __FSL_DIU_FB_H__
  21#define __FSL_DIU_FB_H__
  22
  23#include <linux/types.h>
  24
  25struct mfb_chroma_key {
  26        int enable;
  27        __u8  red_max;
  28        __u8  green_max;
  29        __u8  blue_max;
  30        __u8  red_min;
  31        __u8  green_min;
  32        __u8  blue_min;
  33};
  34
  35struct aoi_display_offset {
  36        __s32 x_aoi_d;
  37        __s32 y_aoi_d;
  38};
  39
  40#define MFB_SET_CHROMA_KEY      _IOW('M', 1, struct mfb_chroma_key)
  41#define MFB_SET_BRIGHTNESS      _IOW('M', 3, __u8)
  42#define MFB_SET_ALPHA           _IOW('M', 0, __u8)
  43#define MFB_GET_ALPHA           _IOR('M', 0, __u8)
  44#define MFB_SET_AOID            _IOW('M', 4, struct aoi_display_offset)
  45#define MFB_GET_AOID            _IOR('M', 4, struct aoi_display_offset)
  46#define MFB_SET_PIXFMT          _IOW('M', 8, __u32)
  47#define MFB_GET_PIXFMT          _IOR('M', 8, __u32)
  48
  49/*
  50 * The original definitions of MFB_SET_PIXFMT and MFB_GET_PIXFMT used the
  51 * wrong value for 'size' field of the ioctl.  The current macros above use the
  52 * right size, but we still need to provide backwards compatibility, at least
  53 * for a while.
  54*/
  55#define MFB_SET_PIXFMT_OLD      0x80014d08
  56#define MFB_GET_PIXFMT_OLD      0x40014d08
  57
  58#ifdef __KERNEL__
  59
  60/*
  61 * These are the fields of area descriptor(in DDR memory) for every plane
  62 */
  63struct diu_ad {
  64        /* Word 0(32-bit) in DDR memory */
  65/*      __u16 comp; */
  66/*      __u16 pixel_s:2; */
  67/*      __u16 pallete:1; */
  68/*      __u16 red_c:2; */
  69/*      __u16 green_c:2; */
  70/*      __u16 blue_c:2; */
  71/*      __u16 alpha_c:3; */
  72/*      __u16 byte_f:1; */
  73/*      __u16 res0:3; */
  74
  75        __be32 pix_fmt; /* hard coding pixel format */
  76
  77        /* Word 1(32-bit) in DDR memory */
  78        __le32 addr;
  79
  80        /* Word 2(32-bit) in DDR memory */
  81/*      __u32 delta_xs:11; */
  82/*      __u32 res1:1; */
  83/*      __u32 delta_ys:11; */
  84/*      __u32 res2:1; */
  85/*      __u32 g_alpha:8; */
  86        __le32 src_size_g_alpha;
  87
  88        /* Word 3(32-bit) in DDR memory */
  89/*      __u32 delta_xi:11; */
  90/*      __u32 res3:5; */
  91/*      __u32 delta_yi:11; */
  92/*      __u32 res4:3; */
  93/*      __u32 flip:2; */
  94        __le32 aoi_size;
  95
  96        /* Word 4(32-bit) in DDR memory */
  97        /*__u32 offset_xi:11;
  98        __u32 res5:5;
  99        __u32 offset_yi:11;
 100        __u32 res6:5;
 101        */
 102        __le32 offset_xyi;
 103
 104        /* Word 5(32-bit) in DDR memory */
 105        /*__u32 offset_xd:11;
 106        __u32 res7:5;
 107        __u32 offset_yd:11;
 108        __u32 res8:5; */
 109        __le32 offset_xyd;
 110
 111
 112        /* Word 6(32-bit) in DDR memory */
 113        __u8 ckmax_r;
 114        __u8 ckmax_g;
 115        __u8 ckmax_b;
 116        __u8 res9;
 117
 118        /* Word 7(32-bit) in DDR memory */
 119        __u8 ckmin_r;
 120        __u8 ckmin_g;
 121        __u8 ckmin_b;
 122        __u8 res10;
 123/*      __u32 res10:8; */
 124
 125        /* Word 8(32-bit) in DDR memory */
 126        __le32 next_ad;
 127
 128        /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */
 129        __u32 paddr;
 130} __attribute__ ((packed));
 131
 132/* DIU register map */
 133struct diu {
 134        __be32 desc[3];
 135        __be32 gamma;
 136        __be32 pallete;
 137        __be32 cursor;
 138        __be32 curs_pos;
 139        __be32 diu_mode;
 140        __be32 bgnd;
 141        __be32 bgnd_wb;
 142        __be32 disp_size;
 143        __be32 wb_size;
 144        __be32 wb_mem_addr;
 145        __be32 hsyn_para;
 146        __be32 vsyn_para;
 147        __be32 syn_pol;
 148        __be32 thresholds;
 149        __be32 int_status;
 150        __be32 int_mask;
 151        __be32 colorbar[8];
 152        __be32 filling;
 153        __be32 plut;
 154} __attribute__ ((packed));
 155
 156/*
 157 * Modes of operation of DIU.  The DIU supports five different modes, but
 158 * the driver only supports modes 0 and 1.
 159 */
 160#define MFB_MODE0       0       /* DIU off */
 161#define MFB_MODE1       1       /* All three planes output to display */
 162
 163#endif /* __KERNEL__ */
 164#endif /* __FSL_DIU_FB_H__ */
 165
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