fsl-diu-fb.h

  1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2/*
  3 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
  4 *
  5 *  Freescale DIU Frame Buffer device driver
  6 *
  7 *  Authors: Hongjun Chen <hong-jun.chen@freescale.com>
  8 *           Paul Widmer <paul.widmer@freescale.com>
  9 *           Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
 10 *           York Sun <yorksun@freescale.com>
 11 *
 12 *   Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix
 13 */
 14
 15#ifndef __FSL_DIU_FB_H__
 16#define __FSL_DIU_FB_H__
 17
 18#include <linux/types.h>
 19
 20struct mfb_chroma_key {
 21	int enable;
 22	__u8  red_max;
 23	__u8  green_max;
 24	__u8  blue_max;
 25	__u8  red_min;
 26	__u8  green_min;
 27	__u8  blue_min;
 28};
 29
 30struct aoi_display_offset {
 31	__s32 x_aoi_d;
 32	__s32 y_aoi_d;
 33};
 34
 35#define MFB_SET_CHROMA_KEY	_IOW('M', 1, struct mfb_chroma_key)
 36#define MFB_SET_BRIGHTNESS	_IOW('M', 3, __u8)
 37#define MFB_SET_ALPHA		_IOW('M', 0, __u8)
 38#define MFB_GET_ALPHA		_IOR('M', 0, __u8)
 39#define MFB_SET_AOID		_IOW('M', 4, struct aoi_display_offset)
 40#define MFB_GET_AOID		_IOR('M', 4, struct aoi_display_offset)
 41#define MFB_SET_PIXFMT		_IOW('M', 8, __u32)
 42#define MFB_GET_PIXFMT		_IOR('M', 8, __u32)
 43
 44/*
 45 * The MPC5121 BSP comes with a gamma_set utility that initializes the
 46 * gamma table.  Unfortunately, it uses bad values for the IOCTL commands,
 47 * but there's nothing we can do about it now.  These ioctls are only
 48 * supported on the MPC5121.
 49 */
 50#define MFB_SET_GAMMA		_IOW('M', 1, __u8)
 51#define MFB_GET_GAMMA		_IOR('M', 1, __u8)
 52
 53/*
 54 * The original definitions of MFB_SET_PIXFMT and MFB_GET_PIXFMT used the
 55 * wrong value for 'size' field of the ioctl.  The current macros above use the
 56 * right size, but we still need to provide backwards compatibility, at least
 57 * for a while.
 58*/
 59#define MFB_SET_PIXFMT_OLD	0x80014d08
 60#define MFB_GET_PIXFMT_OLD	0x40014d08
 61
 62#ifdef __KERNEL__
 63
 64/*
 65 * These are the fields of area descriptor(in DDR memory) for every plane
 66 */
 67struct diu_ad {
 68	/* Word 0(32-bit) in DDR memory */
 69/* 	__u16 comp; */
 70/* 	__u16 pixel_s:2; */
 71/* 	__u16 palette:1; */
 72/* 	__u16 red_c:2; */
 73/* 	__u16 green_c:2; */
 74/* 	__u16 blue_c:2; */
 75/* 	__u16 alpha_c:3; */
 76/* 	__u16 byte_f:1; */
 77/* 	__u16 res0:3; */
 78
 79	__be32 pix_fmt; /* hard coding pixel format */
 80
 81	/* Word 1(32-bit) in DDR memory */
 82	__le32 addr;
 83
 84	/* Word 2(32-bit) in DDR memory */
 85/* 	__u32 delta_xs:11; */
 86/* 	__u32 res1:1; */
 87/* 	__u32 delta_ys:11; */
 88/* 	__u32 res2:1; */
 89/* 	__u32 g_alpha:8; */
 90	__le32 src_size_g_alpha;
 91
 92	/* Word 3(32-bit) in DDR memory */
 93/* 	__u32 delta_xi:11; */
 94/* 	__u32 res3:5; */
 95/* 	__u32 delta_yi:11; */
 96/* 	__u32 res4:3; */
 97/* 	__u32 flip:2; */
 98	__le32 aoi_size;
 99
100	/* Word 4(32-bit) in DDR memory */
101	/*__u32 offset_xi:11;
102	__u32 res5:5;
103	__u32 offset_yi:11;
104	__u32 res6:5;
105	*/
106	__le32 offset_xyi;
107
108	/* Word 5(32-bit) in DDR memory */
109	/*__u32 offset_xd:11;
110	__u32 res7:5;
111	__u32 offset_yd:11;
112	__u32 res8:5; */
113	__le32 offset_xyd;
114
115
116	/* Word 6(32-bit) in DDR memory */
117	__u8 ckmax_r;
118	__u8 ckmax_g;
119	__u8 ckmax_b;
120	__u8 res9;
121
122	/* Word 7(32-bit) in DDR memory */
123	__u8 ckmin_r;
124	__u8 ckmin_g;
125	__u8 ckmin_b;
126	__u8 res10;
127/* 	__u32 res10:8; */
128
129	/* Word 8(32-bit) in DDR memory */
130	__le32 next_ad;
131
132	/* Word 9(32-bit) in DDR memory, just for 64-bit aligned */
133	__u32 paddr;
134} __attribute__ ((packed));
135
136/* DIU register map */
137struct diu {
138	__be32 desc[3];
139	__be32 gamma;
140	__be32 palette;
141	__be32 cursor;
142	__be32 curs_pos;
143	__be32 diu_mode;
144	__be32 bgnd;
145	__be32 bgnd_wb;
146	__be32 disp_size;
147	__be32 wb_size;
148	__be32 wb_mem_addr;
149	__be32 hsyn_para;
150	__be32 vsyn_para;
151	__be32 syn_pol;
152	__be32 thresholds;
153	__be32 int_status;
154	__be32 int_mask;
155	__be32 colorbar[8];
156	__be32 filling;
157	__be32 plut;
158} __attribute__ ((packed));
159
160/*
161 * Modes of operation of DIU.  The DIU supports five different modes, but
162 * the driver only supports modes 0 and 1.
163 */
164#define MFB_MODE0	0	/* DIU off */
165#define MFB_MODE1	1	/* All three planes output to display */
166
167#endif /* __KERNEL__ */
168#endif /* __FSL_DIU_FB_H__ */