include/linux/fsl-diu-fb.h

   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
  25 struct 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
  35 struct 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 MPC5121 BSP comes with a gamma_set utility that initializes the
  51  * gamma table.  Unfortunately, it uses bad values for the IOCTL commands,
  52  * but there's nothing we can do about it now.  These ioctls are only
  53  * supported on the MPC5121.
  54  */
  55 #define MFB_SET_GAMMA           _IOW('M', 1, __u8)
  56 #define MFB_GET_GAMMA           _IOR('M', 1, __u8)
  57
  58 /*
  59  * The original definitions of MFB_SET_PIXFMT and MFB_GET_PIXFMT used the
  60  * wrong value for 'size' field of the ioctl.  The current macros above use the
  61  * right size, but we still need to provide backwards compatibility, at least
  62  * for a while.
  63 */
  64 #define MFB_SET_PIXFMT_OLD      0x80014d08
  65 #define MFB_GET_PIXFMT_OLD      0x40014d08
  66
  67 #ifdef __KERNEL__
  68
  69 /*
  70  * These are the fields of area descriptor(in DDR memory) for every plane
  71  */
  72 struct diu_ad {
  73         /* Word 0(32-bit) in DDR memory */
  74 /*      __u16 comp; */
  75 /*      __u16 pixel_s:2; */
  76 /*      __u16 palette:1; */
  77 /*      __u16 red_c:2; */
  78 /*      __u16 green_c:2; */
  79 /*      __u16 blue_c:2; */
  80 /*      __u16 alpha_c:3; */
  81 /*      __u16 byte_f:1; */
  82 /*      __u16 res0:3; */
  83
  84         __be32 pix_fmt; /* hard coding pixel format */
  85
  86         /* Word 1(32-bit) in DDR memory */
  87         __le32 addr;
  88
  89         /* Word 2(32-bit) in DDR memory */
  90 /*      __u32 delta_xs:11; */
  91 /*      __u32 res1:1; */
  92 /*      __u32 delta_ys:11; */
  93 /*      __u32 res2:1; */
  94 /*      __u32 g_alpha:8; */
  95         __le32 src_size_g_alpha;
  96
  97         /* Word 3(32-bit) in DDR memory */
  98 /*      __u32 delta_xi:11; */
  99 /*      __u32 res3:5; */
 100 /*      __u32 delta_yi:11; */
 101 /*      __u32 res4:3; */
 102 /*      __u32 flip:2; */
 103         __le32 aoi_size;
 104
 105         /* Word 4(32-bit) in DDR memory */
 106         /*__u32 offset_xi:11;
 107         __u32 res5:5;
 108         __u32 offset_yi:11;
 109         __u32 res6:5;
 110         */
 111         __le32 offset_xyi;
 112
 113         /* Word 5(32-bit) in DDR memory */
 114         /*__u32 offset_xd:11;
 115         __u32 res7:5;
 116         __u32 offset_yd:11;
 117         __u32 res8:5; */
 118         __le32 offset_xyd;
 119
 120
 121         /* Word 6(32-bit) in DDR memory */
 122         __u8 ckmax_r;
 123         __u8 ckmax_g;
 124         __u8 ckmax_b;
 125         __u8 res9;
 126
 127         /* Word 7(32-bit) in DDR memory */
 128         __u8 ckmin_r;
 129         __u8 ckmin_g;
 130         __u8 ckmin_b;
 131         __u8 res10;
 132 /*      __u32 res10:8; */
 133
 134         /* Word 8(32-bit) in DDR memory */
 135         __le32 next_ad;
 136
 137         /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */
 138         __u32 paddr;
 139 } __attribute__ ((packed));
 140
 141 /* DIU register map */
 142 struct diu {
 143         __be32 desc[3];
 144         __be32 gamma;
 145         __be32 palette;
 146         __be32 cursor;
 147         __be32 curs_pos;
 148         __be32 diu_mode;
 149         __be32 bgnd;
 150         __be32 bgnd_wb;
 151         __be32 disp_size;
 152         __be32 wb_size;
 153         __be32 wb_mem_addr;
 154         __be32 hsyn_para;
 155         __be32 vsyn_para;
 156         __be32 syn_pol;
 157         __be32 thresholds;
 158         __be32 int_status;
 159         __be32 int_mask;
 160         __be32 colorbar[8];
 161         __be32 filling;
 162         __be32 plut;
 163 } __attribute__ ((packed));
 164
 165 /*
 166  * Modes of operation of DIU.  The DIU supports five different modes, but
 167  * the driver only supports modes 0 and 1.
 168  */
 169 #define MFB_MODE0       0       /* DIU off */
 170 #define MFB_MODE1       1       /* All three planes output to display */
 171
 172 #endif /* __KERNEL__ */
 173 #endif /* __FSL_DIU_FB_H__ */