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__ */ 174