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 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 */ 63 struct 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 */ 133 struct 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